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elf32-ppc.c revision 1.8
      1  1.1  christos /* PowerPC-specific support for 32-bit ELF
      2  1.7  christos    Copyright (C) 1994-2018 Free Software Foundation, Inc.
      3  1.1  christos    Written by Ian Lance Taylor, Cygnus Support.
      4  1.1  christos 
      5  1.1  christos    This file is part of BFD, the Binary File Descriptor library.
      6  1.1  christos 
      7  1.1  christos    This program is free software; you can redistribute it and/or modify
      8  1.1  christos    it under the terms of the GNU General Public License as published by
      9  1.1  christos    the Free Software Foundation; either version 3 of the License, or
     10  1.1  christos    (at your option) any later version.
     11  1.1  christos 
     12  1.1  christos    This program is distributed in the hope that it will be useful,
     13  1.1  christos    but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  1.1  christos    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15  1.1  christos    GNU General Public License for more details.
     16  1.1  christos 
     17  1.1  christos    You should have received a copy of the GNU General Public License
     18  1.1  christos    along with this program; if not, write to the
     19  1.1  christos    Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
     20  1.1  christos    Boston, MA 02110-1301, USA.  */
     21  1.1  christos 
     22  1.1  christos 
     23  1.1  christos /* This file is based on a preliminary PowerPC ELF ABI.  The
     24  1.1  christos    information may not match the final PowerPC ELF ABI.  It includes
     25  1.1  christos    suggestions from the in-progress Embedded PowerPC ABI, and that
     26  1.1  christos    information may also not match.  */
     27  1.1  christos 
     28  1.1  christos #include "sysdep.h"
     29  1.1  christos #include <stdarg.h>
     30  1.1  christos #include "bfd.h"
     31  1.1  christos #include "bfdlink.h"
     32  1.1  christos #include "libbfd.h"
     33  1.1  christos #include "elf-bfd.h"
     34  1.1  christos #include "elf/ppc.h"
     35  1.1  christos #include "elf32-ppc.h"
     36  1.1  christos #include "elf-vxworks.h"
     37  1.1  christos #include "dwarf2.h"
     38  1.7  christos #include "opcode/ppc.h"
     39  1.1  christos 
     40  1.1  christos typedef enum split16_format_type
     41  1.1  christos {
     42  1.1  christos   split16a_type = 0,
     43  1.1  christos   split16d_type
     44  1.1  christos }
     45  1.1  christos split16_format_type;
     46  1.1  christos 
     47  1.1  christos /* RELA relocations are used here.  */
     48  1.1  christos 
     49  1.1  christos static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
     50  1.1  christos   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
     51  1.1  christos static bfd_reloc_status_type ppc_elf_unhandled_reloc
     52  1.1  christos   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
     53  1.1  christos 
     54  1.1  christos /* Branch prediction bit for branch taken relocs.  */
     55  1.1  christos #define BRANCH_PREDICT_BIT 0x200000
     56  1.1  christos /* Mask to set RA in memory instructions.  */
     57  1.1  christos #define RA_REGISTER_MASK 0x001f0000
     58  1.1  christos /* Value to shift register by to insert RA.  */
     59  1.1  christos #define RA_REGISTER_SHIFT 16
     60  1.1  christos 
     61  1.1  christos /* The name of the dynamic interpreter.  This is put in the .interp
     62  1.1  christos    section.  */
     63  1.1  christos #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
     64  1.1  christos 
     65  1.1  christos /* For old-style PLT.  */
     66  1.1  christos /* The number of single-slot PLT entries (the rest use two slots).  */
     67  1.1  christos #define PLT_NUM_SINGLE_ENTRIES 8192
     68  1.1  christos 
     69  1.1  christos /* For new-style .glink and .plt.  */
     70  1.1  christos #define GLINK_PLTRESOLVE 16*4
     71  1.7  christos #define GLINK_ENTRY_SIZE(htab, h)					\
     72  1.7  christos   ((4*4									\
     73  1.7  christos     + (h != NULL							\
     74  1.7  christos        && h == htab->tls_get_addr					\
     75  1.7  christos        && !htab->params->no_tls_get_addr_opt ? 8*4 : 0)			\
     76  1.7  christos     + (1u << htab->params->plt_stub_align) - 1)				\
     77  1.7  christos    & -(1u << htab->params->plt_stub_align))
     78  1.1  christos 
     79  1.1  christos /* VxWorks uses its own plt layout, filled in by the static linker.  */
     80  1.1  christos 
     81  1.1  christos /* The standard VxWorks PLT entry.  */
     82  1.1  christos #define VXWORKS_PLT_ENTRY_SIZE 32
     83  1.1  christos static const bfd_vma ppc_elf_vxworks_plt_entry
     84  1.1  christos     [VXWORKS_PLT_ENTRY_SIZE / 4] =
     85  1.1  christos   {
     86  1.7  christos     0x3d800000, /* lis	   r12,0		 */
     87  1.7  christos     0x818c0000, /* lwz	   r12,0(r12)		 */
     88  1.7  christos     0x7d8903a6, /* mtctr   r12			 */
     89  1.7  christos     0x4e800420, /* bctr				 */
     90  1.7  christos     0x39600000, /* li	   r11,0		 */
     91  1.7  christos     0x48000000, /* b	   14 <.PLT0resolve+0x4> */
     92  1.7  christos     0x60000000, /* nop				 */
     93  1.7  christos     0x60000000, /* nop				 */
     94  1.1  christos   };
     95  1.1  christos static const bfd_vma ppc_elf_vxworks_pic_plt_entry
     96  1.1  christos     [VXWORKS_PLT_ENTRY_SIZE / 4] =
     97  1.1  christos   {
     98  1.1  christos     0x3d9e0000, /* addis r12,r30,0 */
     99  1.1  christos     0x818c0000, /* lwz	 r12,0(r12) */
    100  1.1  christos     0x7d8903a6, /* mtctr r12 */
    101  1.1  christos     0x4e800420, /* bctr */
    102  1.1  christos     0x39600000, /* li	 r11,0 */
    103  1.1  christos     0x48000000, /* b	 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
    104  1.1  christos     0x60000000, /* nop */
    105  1.1  christos     0x60000000, /* nop */
    106  1.1  christos   };
    107  1.1  christos 
    108  1.1  christos /* The initial VxWorks PLT entry.  */
    109  1.1  christos #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
    110  1.1  christos static const bfd_vma ppc_elf_vxworks_plt0_entry
    111  1.1  christos     [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
    112  1.1  christos   {
    113  1.7  christos     0x3d800000, /* lis	   r12,0	*/
    114  1.7  christos     0x398c0000, /* addi	   r12,r12,0	*/
    115  1.7  christos     0x800c0008, /* lwz	   r0,8(r12)	*/
    116  1.7  christos     0x7c0903a6, /* mtctr   r0		*/
    117  1.7  christos     0x818c0004, /* lwz	   r12,4(r12)	*/
    118  1.7  christos     0x4e800420, /* bctr			*/
    119  1.7  christos     0x60000000, /* nop			*/
    120  1.7  christos     0x60000000, /* nop			*/
    121  1.1  christos   };
    122  1.1  christos static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
    123  1.1  christos     [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
    124  1.1  christos   {
    125  1.1  christos     0x819e0008, /* lwz	 r12,8(r30) */
    126  1.7  christos     0x7d8903a6, /* mtctr r12	    */
    127  1.1  christos     0x819e0004, /* lwz	 r12,4(r30) */
    128  1.7  christos     0x4e800420, /* bctr		    */
    129  1.7  christos     0x60000000, /* nop		    */
    130  1.7  christos     0x60000000, /* nop		    */
    131  1.7  christos     0x60000000, /* nop		    */
    132  1.7  christos     0x60000000, /* nop		    */
    133  1.1  christos   };
    134  1.1  christos 
    135  1.1  christos /* For executables, we have some additional relocations in
    136  1.1  christos    .rela.plt.unloaded, for the kernel loader.  */
    137  1.1  christos 
    138  1.1  christos /* The number of non-JMP_SLOT relocations per PLT0 slot. */
    139  1.1  christos #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
    140  1.1  christos /* The number of relocations in the PLTResolve slot. */
    141  1.1  christos #define VXWORKS_PLTRESOLVE_RELOCS 2
    142  1.7  christos /* The number of relocations in the PLTResolve slot when creating
    143  1.1  christos    a shared library. */
    144  1.1  christos #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
    145  1.1  christos 
    146  1.1  christos /* Some instructions.  */
    147  1.1  christos #define ADDIS_11_11	0x3d6b0000
    148  1.1  christos #define ADDIS_11_30	0x3d7e0000
    149  1.1  christos #define ADDIS_12_12	0x3d8c0000
    150  1.1  christos #define ADDI_11_11	0x396b0000
    151  1.1  christos #define ADD_0_11_11	0x7c0b5a14
    152  1.1  christos #define ADD_3_12_2	0x7c6c1214
    153  1.1  christos #define ADD_11_0_11	0x7d605a14
    154  1.1  christos #define B		0x48000000
    155  1.3  christos #define BA		0x48000002
    156  1.1  christos #define BCL_20_31	0x429f0005
    157  1.1  christos #define BCTR		0x4e800420
    158  1.1  christos #define BEQLR		0x4d820020
    159  1.1  christos #define CMPWI_11_0	0x2c0b0000
    160  1.1  christos #define LIS_11		0x3d600000
    161  1.1  christos #define LIS_12		0x3d800000
    162  1.1  christos #define LWZU_0_12	0x840c0000
    163  1.1  christos #define LWZ_0_12	0x800c0000
    164  1.1  christos #define LWZ_11_3	0x81630000
    165  1.1  christos #define LWZ_11_11	0x816b0000
    166  1.1  christos #define LWZ_11_30	0x817e0000
    167  1.1  christos #define LWZ_12_3	0x81830000
    168  1.1  christos #define LWZ_12_12	0x818c0000
    169  1.1  christos #define MR_0_3		0x7c601b78
    170  1.1  christos #define MR_3_0		0x7c030378
    171  1.1  christos #define MFLR_0		0x7c0802a6
    172  1.1  christos #define MFLR_12		0x7d8802a6
    173  1.1  christos #define MTCTR_0		0x7c0903a6
    174  1.1  christos #define MTCTR_11	0x7d6903a6
    175  1.1  christos #define MTLR_0		0x7c0803a6
    176  1.1  christos #define NOP		0x60000000
    177  1.1  christos #define SUB_11_11_12	0x7d6c5850
    178  1.1  christos 
    179  1.1  christos /* Offset of tp and dtp pointers from start of TLS block.  */
    180  1.1  christos #define TP_OFFSET	0x7000
    181  1.1  christos #define DTP_OFFSET	0x8000
    182  1.1  christos 
    183  1.1  christos /* The value of a defined global symbol.  */
    184  1.1  christos #define SYM_VAL(SYM) \
    185  1.1  christos   ((SYM)->root.u.def.section->output_section->vma	\
    186  1.1  christos    + (SYM)->root.u.def.section->output_offset		\
    187  1.1  christos    + (SYM)->root.u.def.value)
    188  1.1  christos 
    189  1.1  christos static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
    191  1.1  christos 
    192  1.1  christos static reloc_howto_type ppc_elf_howto_raw[] = {
    193  1.1  christos   /* This reloc does nothing.  */
    194  1.1  christos   HOWTO (R_PPC_NONE,		/* type */
    195  1.3  christos 	 0,			/* rightshift */
    196  1.3  christos 	 3,			/* size (0 = byte, 1 = short, 2 = long) */
    197  1.1  christos 	 0,			/* bitsize */
    198  1.1  christos 	 FALSE,			/* pc_relative */
    199  1.3  christos 	 0,			/* bitpos */
    200  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    201  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    202  1.1  christos 	 "R_PPC_NONE",		/* name */
    203  1.1  christos 	 FALSE,			/* partial_inplace */
    204  1.1  christos 	 0,			/* src_mask */
    205  1.1  christos 	 0,			/* dst_mask */
    206  1.1  christos 	 FALSE),		/* pcrel_offset */
    207  1.1  christos 
    208  1.1  christos   /* A standard 32 bit relocation.  */
    209  1.1  christos   HOWTO (R_PPC_ADDR32,		/* type */
    210  1.1  christos 	 0,			/* rightshift */
    211  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    212  1.1  christos 	 32,			/* bitsize */
    213  1.1  christos 	 FALSE,			/* pc_relative */
    214  1.3  christos 	 0,			/* bitpos */
    215  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    216  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    217  1.1  christos 	 "R_PPC_ADDR32",	/* name */
    218  1.1  christos 	 FALSE,			/* partial_inplace */
    219  1.1  christos 	 0,			/* src_mask */
    220  1.1  christos 	 0xffffffff,		/* dst_mask */
    221  1.1  christos 	 FALSE),		/* pcrel_offset */
    222  1.1  christos 
    223  1.1  christos   /* An absolute 26 bit branch; the lower two bits must be zero.
    224  1.1  christos      FIXME: we don't check that, we just clear them.  */
    225  1.1  christos   HOWTO (R_PPC_ADDR24,		/* type */
    226  1.1  christos 	 0,			/* rightshift */
    227  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    228  1.1  christos 	 26,			/* bitsize */
    229  1.1  christos 	 FALSE,			/* pc_relative */
    230  1.3  christos 	 0,			/* bitpos */
    231  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    232  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    233  1.1  christos 	 "R_PPC_ADDR24",	/* name */
    234  1.1  christos 	 FALSE,			/* partial_inplace */
    235  1.1  christos 	 0,			/* src_mask */
    236  1.1  christos 	 0x3fffffc,		/* dst_mask */
    237  1.1  christos 	 FALSE),		/* pcrel_offset */
    238  1.1  christos 
    239  1.1  christos   /* A standard 16 bit relocation.  */
    240  1.1  christos   HOWTO (R_PPC_ADDR16,		/* type */
    241  1.1  christos 	 0,			/* rightshift */
    242  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    243  1.1  christos 	 16,			/* bitsize */
    244  1.1  christos 	 FALSE,			/* pc_relative */
    245  1.1  christos 	 0,			/* bitpos */
    246  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    247  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    248  1.1  christos 	 "R_PPC_ADDR16",	/* name */
    249  1.1  christos 	 FALSE,			/* partial_inplace */
    250  1.1  christos 	 0,			/* src_mask */
    251  1.1  christos 	 0xffff,		/* dst_mask */
    252  1.1  christos 	 FALSE),		/* pcrel_offset */
    253  1.1  christos 
    254  1.1  christos   /* A 16 bit relocation without overflow.  */
    255  1.1  christos   HOWTO (R_PPC_ADDR16_LO,	/* type */
    256  1.1  christos 	 0,			/* rightshift */
    257  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    258  1.1  christos 	 16,			/* bitsize */
    259  1.1  christos 	 FALSE,			/* pc_relative */
    260  1.1  christos 	 0,			/* bitpos */
    261  1.1  christos 	 complain_overflow_dont,/* complain_on_overflow */
    262  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    263  1.1  christos 	 "R_PPC_ADDR16_LO",	/* name */
    264  1.1  christos 	 FALSE,			/* partial_inplace */
    265  1.1  christos 	 0,			/* src_mask */
    266  1.1  christos 	 0xffff,		/* dst_mask */
    267  1.1  christos 	 FALSE),		/* pcrel_offset */
    268  1.1  christos 
    269  1.1  christos   /* The high order 16 bits of an address.  */
    270  1.1  christos   HOWTO (R_PPC_ADDR16_HI,	/* type */
    271  1.1  christos 	 16,			/* rightshift */
    272  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    273  1.1  christos 	 16,			/* bitsize */
    274  1.1  christos 	 FALSE,			/* pc_relative */
    275  1.1  christos 	 0,			/* bitpos */
    276  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    277  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    278  1.1  christos 	 "R_PPC_ADDR16_HI",	/* name */
    279  1.1  christos 	 FALSE,			/* partial_inplace */
    280  1.1  christos 	 0,			/* src_mask */
    281  1.1  christos 	 0xffff,		/* dst_mask */
    282  1.1  christos 	 FALSE),		/* pcrel_offset */
    283  1.1  christos 
    284  1.1  christos   /* The high order 16 bits of an address, plus 1 if the contents of
    285  1.1  christos      the low 16 bits, treated as a signed number, is negative.  */
    286  1.1  christos   HOWTO (R_PPC_ADDR16_HA,	/* type */
    287  1.1  christos 	 16,			/* rightshift */
    288  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    289  1.1  christos 	 16,			/* bitsize */
    290  1.1  christos 	 FALSE,			/* pc_relative */
    291  1.1  christos 	 0,			/* bitpos */
    292  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    293  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
    294  1.1  christos 	 "R_PPC_ADDR16_HA",	/* name */
    295  1.1  christos 	 FALSE,			/* partial_inplace */
    296  1.1  christos 	 0,			/* src_mask */
    297  1.1  christos 	 0xffff,		/* dst_mask */
    298  1.1  christos 	 FALSE),		/* pcrel_offset */
    299  1.1  christos 
    300  1.1  christos   /* An absolute 16 bit branch; the lower two bits must be zero.
    301  1.1  christos      FIXME: we don't check that, we just clear them.  */
    302  1.1  christos   HOWTO (R_PPC_ADDR14,		/* type */
    303  1.1  christos 	 0,			/* rightshift */
    304  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    305  1.1  christos 	 16,			/* bitsize */
    306  1.1  christos 	 FALSE,			/* pc_relative */
    307  1.3  christos 	 0,			/* bitpos */
    308  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    309  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    310  1.1  christos 	 "R_PPC_ADDR14",	/* name */
    311  1.1  christos 	 FALSE,			/* partial_inplace */
    312  1.1  christos 	 0,			/* src_mask */
    313  1.1  christos 	 0xfffc,		/* dst_mask */
    314  1.1  christos 	 FALSE),		/* pcrel_offset */
    315  1.1  christos 
    316  1.1  christos   /* An absolute 16 bit branch, for which bit 10 should be set to
    317  1.1  christos      indicate that the branch is expected to be taken.	The lower two
    318  1.1  christos      bits must be zero.  */
    319  1.1  christos   HOWTO (R_PPC_ADDR14_BRTAKEN,	/* type */
    320  1.1  christos 	 0,			/* rightshift */
    321  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    322  1.1  christos 	 16,			/* bitsize */
    323  1.1  christos 	 FALSE,			/* pc_relative */
    324  1.3  christos 	 0,			/* bitpos */
    325  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    326  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    327  1.1  christos 	 "R_PPC_ADDR14_BRTAKEN",/* name */
    328  1.1  christos 	 FALSE,			/* partial_inplace */
    329  1.1  christos 	 0,			/* src_mask */
    330  1.1  christos 	 0xfffc,		/* dst_mask */
    331  1.1  christos 	 FALSE),		/* pcrel_offset */
    332  1.1  christos 
    333  1.1  christos   /* An absolute 16 bit branch, for which bit 10 should be set to
    334  1.1  christos      indicate that the branch is not expected to be taken.  The lower
    335  1.1  christos      two bits must be zero.  */
    336  1.1  christos   HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
    337  1.1  christos 	 0,			/* rightshift */
    338  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    339  1.1  christos 	 16,			/* bitsize */
    340  1.1  christos 	 FALSE,			/* pc_relative */
    341  1.3  christos 	 0,			/* bitpos */
    342  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    343  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    344  1.1  christos 	 "R_PPC_ADDR14_BRNTAKEN",/* name */
    345  1.1  christos 	 FALSE,			/* partial_inplace */
    346  1.1  christos 	 0,			/* src_mask */
    347  1.1  christos 	 0xfffc,		/* dst_mask */
    348  1.1  christos 	 FALSE),		/* pcrel_offset */
    349  1.1  christos 
    350  1.1  christos   /* A relative 26 bit branch; the lower two bits must be zero.  */
    351  1.1  christos   HOWTO (R_PPC_REL24,		/* type */
    352  1.1  christos 	 0,			/* rightshift */
    353  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    354  1.1  christos 	 26,			/* bitsize */
    355  1.1  christos 	 TRUE,			/* pc_relative */
    356  1.1  christos 	 0,			/* bitpos */
    357  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    358  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    359  1.1  christos 	 "R_PPC_REL24",		/* name */
    360  1.1  christos 	 FALSE,			/* partial_inplace */
    361  1.1  christos 	 0,			/* src_mask */
    362  1.1  christos 	 0x3fffffc,		/* dst_mask */
    363  1.1  christos 	 TRUE),			/* pcrel_offset */
    364  1.1  christos 
    365  1.1  christos   /* A relative 16 bit branch; the lower two bits must be zero.  */
    366  1.1  christos   HOWTO (R_PPC_REL14,		/* type */
    367  1.1  christos 	 0,			/* rightshift */
    368  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    369  1.1  christos 	 16,			/* bitsize */
    370  1.1  christos 	 TRUE,			/* pc_relative */
    371  1.1  christos 	 0,			/* bitpos */
    372  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    373  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    374  1.1  christos 	 "R_PPC_REL14",		/* name */
    375  1.1  christos 	 FALSE,			/* partial_inplace */
    376  1.1  christos 	 0,			/* src_mask */
    377  1.1  christos 	 0xfffc,		/* dst_mask */
    378  1.1  christos 	 TRUE),			/* pcrel_offset */
    379  1.1  christos 
    380  1.1  christos   /* A relative 16 bit branch.  Bit 10 should be set to indicate that
    381  1.1  christos      the branch is expected to be taken.  The lower two bits must be
    382  1.1  christos      zero.  */
    383  1.1  christos   HOWTO (R_PPC_REL14_BRTAKEN,	/* type */
    384  1.1  christos 	 0,			/* rightshift */
    385  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    386  1.1  christos 	 16,			/* bitsize */
    387  1.1  christos 	 TRUE,			/* pc_relative */
    388  1.1  christos 	 0,			/* bitpos */
    389  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    390  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    391  1.1  christos 	 "R_PPC_REL14_BRTAKEN",	/* name */
    392  1.1  christos 	 FALSE,			/* partial_inplace */
    393  1.1  christos 	 0,			/* src_mask */
    394  1.1  christos 	 0xfffc,		/* dst_mask */
    395  1.1  christos 	 TRUE),			/* pcrel_offset */
    396  1.1  christos 
    397  1.1  christos   /* A relative 16 bit branch.  Bit 10 should be set to indicate that
    398  1.1  christos      the branch is not expected to be taken.  The lower two bits must
    399  1.1  christos      be zero.  */
    400  1.1  christos   HOWTO (R_PPC_REL14_BRNTAKEN,	/* type */
    401  1.1  christos 	 0,			/* rightshift */
    402  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    403  1.1  christos 	 16,			/* bitsize */
    404  1.1  christos 	 TRUE,			/* pc_relative */
    405  1.1  christos 	 0,			/* bitpos */
    406  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    407  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    408  1.1  christos 	 "R_PPC_REL14_BRNTAKEN",/* name */
    409  1.1  christos 	 FALSE,			/* partial_inplace */
    410  1.1  christos 	 0,			/* src_mask */
    411  1.1  christos 	 0xfffc,		/* dst_mask */
    412  1.1  christos 	 TRUE),			/* pcrel_offset */
    413  1.1  christos 
    414  1.1  christos   /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
    415  1.1  christos      symbol.  */
    416  1.1  christos   HOWTO (R_PPC_GOT16,		/* type */
    417  1.1  christos 	 0,			/* rightshift */
    418  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    419  1.1  christos 	 16,			/* bitsize */
    420  1.1  christos 	 FALSE,			/* pc_relative */
    421  1.1  christos 	 0,			/* bitpos */
    422  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
    423  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    424  1.1  christos 	 "R_PPC_GOT16",		/* name */
    425  1.1  christos 	 FALSE,			/* partial_inplace */
    426  1.1  christos 	 0,			/* src_mask */
    427  1.1  christos 	 0xffff,		/* dst_mask */
    428  1.1  christos 	 FALSE),		/* pcrel_offset */
    429  1.1  christos 
    430  1.1  christos   /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
    431  1.1  christos      the symbol.  */
    432  1.1  christos   HOWTO (R_PPC_GOT16_LO,	/* type */
    433  1.1  christos 	 0,			/* rightshift */
    434  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    435  1.1  christos 	 16,			/* bitsize */
    436  1.1  christos 	 FALSE,			/* pc_relative */
    437  1.1  christos 	 0,			/* bitpos */
    438  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    439  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    440  1.1  christos 	 "R_PPC_GOT16_LO",	/* name */
    441  1.1  christos 	 FALSE,			/* partial_inplace */
    442  1.1  christos 	 0,			/* src_mask */
    443  1.1  christos 	 0xffff,		/* dst_mask */
    444  1.1  christos 	 FALSE),		/* pcrel_offset */
    445  1.1  christos 
    446  1.1  christos   /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
    447  1.1  christos      the symbol.  */
    448  1.1  christos   HOWTO (R_PPC_GOT16_HI,	/* type */
    449  1.1  christos 	 16,			/* rightshift */
    450  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    451  1.1  christos 	 16,			/* bitsize */
    452  1.1  christos 	 FALSE,			/* pc_relative */
    453  1.3  christos 	 0,			/* bitpos */
    454  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    455  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    456  1.1  christos 	 "R_PPC_GOT16_HI",	/* name */
    457  1.1  christos 	 FALSE,			/* partial_inplace */
    458  1.1  christos 	 0,			/* src_mask */
    459  1.1  christos 	 0xffff,		/* dst_mask */
    460  1.1  christos 	 FALSE),		 /* pcrel_offset */
    461  1.1  christos 
    462  1.1  christos   /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
    463  1.1  christos      the symbol.  */
    464  1.1  christos   HOWTO (R_PPC_GOT16_HA,	/* type */
    465  1.1  christos 	 16,			/* rightshift */
    466  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    467  1.1  christos 	 16,			/* bitsize */
    468  1.1  christos 	 FALSE,			/* pc_relative */
    469  1.3  christos 	 0,			/* bitpos */
    470  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    471  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    472  1.1  christos 	 "R_PPC_GOT16_HA",	/* name */
    473  1.1  christos 	 FALSE,			/* partial_inplace */
    474  1.1  christos 	 0,			/* src_mask */
    475  1.1  christos 	 0xffff,		/* dst_mask */
    476  1.1  christos 	 FALSE),		/* pcrel_offset */
    477  1.1  christos 
    478  1.1  christos   /* Like R_PPC_REL24, but referring to the procedure linkage table
    479  1.1  christos      entry for the symbol.  */
    480  1.1  christos   HOWTO (R_PPC_PLTREL24,	/* type */
    481  1.1  christos 	 0,			/* rightshift */
    482  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    483  1.1  christos 	 26,			/* bitsize */
    484  1.1  christos 	 TRUE,			/* pc_relative */
    485  1.7  christos 	 0,			/* bitpos */
    486  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
    487  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    488  1.1  christos 	 "R_PPC_PLTREL24",	/* name */
    489  1.1  christos 	 FALSE,			/* partial_inplace */
    490  1.1  christos 	 0,			/* src_mask */
    491  1.1  christos 	 0x3fffffc,		/* dst_mask */
    492  1.1  christos 	 TRUE),			/* pcrel_offset */
    493  1.1  christos 
    494  1.1  christos   /* This is used only by the dynamic linker.  The symbol should exist
    495  1.1  christos      both in the object being run and in some shared library.  The
    496  1.1  christos      dynamic linker copies the data addressed by the symbol from the
    497  1.1  christos      shared library into the object, because the object being
    498  1.1  christos      run has to have the data at some particular address.  */
    499  1.1  christos   HOWTO (R_PPC_COPY,		/* type */
    500  1.1  christos 	 0,			/* rightshift */
    501  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    502  1.1  christos 	 32,			/* bitsize */
    503  1.1  christos 	 FALSE,			/* pc_relative */
    504  1.3  christos 	 0,			/* bitpos */
    505  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    506  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    507  1.1  christos 	 "R_PPC_COPY",		/* name */
    508  1.1  christos 	 FALSE,			/* partial_inplace */
    509  1.1  christos 	 0,			/* src_mask */
    510  1.1  christos 	 0,			/* dst_mask */
    511  1.1  christos 	 FALSE),		/* pcrel_offset */
    512  1.1  christos 
    513  1.1  christos   /* Like R_PPC_ADDR32, but used when setting global offset table
    514  1.1  christos      entries.  */
    515  1.1  christos   HOWTO (R_PPC_GLOB_DAT,	/* type */
    516  1.1  christos 	 0,			/* rightshift */
    517  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    518  1.1  christos 	 32,			/* bitsize */
    519  1.1  christos 	 FALSE,			/* pc_relative */
    520  1.3  christos 	 0,			/* bitpos */
    521  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    522  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    523  1.1  christos 	 "R_PPC_GLOB_DAT",	/* name */
    524  1.1  christos 	 FALSE,			/* partial_inplace */
    525  1.1  christos 	 0,			/* src_mask */
    526  1.1  christos 	 0xffffffff,		/* dst_mask */
    527  1.1  christos 	 FALSE),		/* pcrel_offset */
    528  1.1  christos 
    529  1.1  christos   /* Marks a procedure linkage table entry for a symbol.  */
    530  1.1  christos   HOWTO (R_PPC_JMP_SLOT,	/* type */
    531  1.1  christos 	 0,			/* rightshift */
    532  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    533  1.1  christos 	 32,			/* bitsize */
    534  1.1  christos 	 FALSE,			/* pc_relative */
    535  1.3  christos 	 0,			/* bitpos */
    536  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    537  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    538  1.1  christos 	 "R_PPC_JMP_SLOT",	/* name */
    539  1.1  christos 	 FALSE,			/* partial_inplace */
    540  1.1  christos 	 0,			/* src_mask */
    541  1.1  christos 	 0,			/* dst_mask */
    542  1.1  christos 	 FALSE),		/* pcrel_offset */
    543  1.1  christos 
    544  1.1  christos   /* Used only by the dynamic linker.  When the object is run, this
    545  1.1  christos      longword is set to the load address of the object, plus the
    546  1.1  christos      addend.  */
    547  1.1  christos   HOWTO (R_PPC_RELATIVE,	/* type */
    548  1.1  christos 	 0,			/* rightshift */
    549  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    550  1.1  christos 	 32,			/* bitsize */
    551  1.1  christos 	 FALSE,			/* pc_relative */
    552  1.3  christos 	 0,			/* bitpos */
    553  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    554  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
    555  1.1  christos 	 "R_PPC_RELATIVE",	/* name */
    556  1.1  christos 	 FALSE,			/* partial_inplace */
    557  1.1  christos 	 0,			/* src_mask */
    558  1.1  christos 	 0xffffffff,		/* dst_mask */
    559  1.1  christos 	 FALSE),		/* pcrel_offset */
    560  1.1  christos 
    561  1.1  christos   /* Like R_PPC_REL24, but uses the value of the symbol within the
    562  1.1  christos      object rather than the final value.  Normally used for
    563  1.1  christos      _GLOBAL_OFFSET_TABLE_.  */
    564  1.1  christos   HOWTO (R_PPC_LOCAL24PC,	/* type */
    565  1.1  christos 	 0,			/* rightshift */
    566  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    567  1.1  christos 	 26,			/* bitsize */
    568  1.1  christos 	 TRUE,			/* pc_relative */
    569  1.1  christos 	 0,			/* bitpos */
    570  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    571  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    572  1.1  christos 	 "R_PPC_LOCAL24PC",	/* name */
    573  1.1  christos 	 FALSE,			/* partial_inplace */
    574  1.1  christos 	 0,			/* src_mask */
    575  1.1  christos 	 0x3fffffc,		/* dst_mask */
    576  1.1  christos 	 TRUE),			/* pcrel_offset */
    577  1.1  christos 
    578  1.1  christos   /* Like R_PPC_ADDR32, but may be unaligned.  */
    579  1.1  christos   HOWTO (R_PPC_UADDR32,		/* type */
    580  1.1  christos 	 0,			/* rightshift */
    581  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    582  1.1  christos 	 32,			/* bitsize */
    583  1.1  christos 	 FALSE,			/* pc_relative */
    584  1.3  christos 	 0,			/* bitpos */
    585  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    586  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    587  1.1  christos 	 "R_PPC_UADDR32",	/* name */
    588  1.1  christos 	 FALSE,			/* partial_inplace */
    589  1.1  christos 	 0,			/* src_mask */
    590  1.1  christos 	 0xffffffff,		/* dst_mask */
    591  1.1  christos 	 FALSE),		/* pcrel_offset */
    592  1.1  christos 
    593  1.1  christos   /* Like R_PPC_ADDR16, but may be unaligned.  */
    594  1.1  christos   HOWTO (R_PPC_UADDR16,		/* type */
    595  1.1  christos 	 0,			/* rightshift */
    596  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    597  1.1  christos 	 16,			/* bitsize */
    598  1.1  christos 	 FALSE,			/* pc_relative */
    599  1.1  christos 	 0,			/* bitpos */
    600  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    601  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    602  1.1  christos 	 "R_PPC_UADDR16",	/* name */
    603  1.1  christos 	 FALSE,			/* partial_inplace */
    604  1.1  christos 	 0,			/* src_mask */
    605  1.1  christos 	 0xffff,		/* dst_mask */
    606  1.1  christos 	 FALSE),		/* pcrel_offset */
    607  1.1  christos 
    608  1.1  christos   /* 32-bit PC relative */
    609  1.1  christos   HOWTO (R_PPC_REL32,		/* type */
    610  1.1  christos 	 0,			/* rightshift */
    611  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    612  1.1  christos 	 32,			/* bitsize */
    613  1.1  christos 	 TRUE,			/* pc_relative */
    614  1.3  christos 	 0,			/* bitpos */
    615  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    616  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    617  1.1  christos 	 "R_PPC_REL32",		/* name */
    618  1.1  christos 	 FALSE,			/* partial_inplace */
    619  1.1  christos 	 0,			/* src_mask */
    620  1.1  christos 	 0xffffffff,		/* dst_mask */
    621  1.1  christos 	 TRUE),			/* pcrel_offset */
    622  1.1  christos 
    623  1.1  christos   /* 32-bit relocation to the symbol's procedure linkage table.
    624  1.1  christos      FIXME: not supported.  */
    625  1.1  christos   HOWTO (R_PPC_PLT32,		/* type */
    626  1.1  christos 	 0,			/* rightshift */
    627  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    628  1.1  christos 	 32,			/* bitsize */
    629  1.1  christos 	 FALSE,			/* pc_relative */
    630  1.3  christos 	 0,			/* bitpos */
    631  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    632  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    633  1.1  christos 	 "R_PPC_PLT32",		/* name */
    634  1.1  christos 	 FALSE,			/* partial_inplace */
    635  1.1  christos 	 0,			/* src_mask */
    636  1.1  christos 	 0,			/* dst_mask */
    637  1.1  christos 	 FALSE),		/* pcrel_offset */
    638  1.1  christos 
    639  1.1  christos   /* 32-bit PC relative relocation to the symbol's procedure linkage table.
    640  1.1  christos      FIXME: not supported.  */
    641  1.1  christos   HOWTO (R_PPC_PLTREL32,	/* type */
    642  1.1  christos 	 0,			/* rightshift */
    643  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    644  1.1  christos 	 32,			/* bitsize */
    645  1.1  christos 	 TRUE,			/* pc_relative */
    646  1.3  christos 	 0,			/* bitpos */
    647  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    648  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    649  1.1  christos 	 "R_PPC_PLTREL32",	/* name */
    650  1.1  christos 	 FALSE,			/* partial_inplace */
    651  1.1  christos 	 0,			/* src_mask */
    652  1.1  christos 	 0,			/* dst_mask */
    653  1.1  christos 	 TRUE),			/* pcrel_offset */
    654  1.1  christos 
    655  1.1  christos   /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
    656  1.1  christos      the symbol.  */
    657  1.1  christos   HOWTO (R_PPC_PLT16_LO,	/* type */
    658  1.1  christos 	 0,			/* rightshift */
    659  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    660  1.1  christos 	 16,			/* bitsize */
    661  1.1  christos 	 FALSE,			/* pc_relative */
    662  1.1  christos 	 0,			/* bitpos */
    663  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    664  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    665  1.1  christos 	 "R_PPC_PLT16_LO",	/* name */
    666  1.1  christos 	 FALSE,			/* partial_inplace */
    667  1.1  christos 	 0,			/* src_mask */
    668  1.1  christos 	 0xffff,		/* dst_mask */
    669  1.1  christos 	 FALSE),		/* pcrel_offset */
    670  1.1  christos 
    671  1.1  christos   /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
    672  1.1  christos      the symbol.  */
    673  1.1  christos   HOWTO (R_PPC_PLT16_HI,	/* type */
    674  1.1  christos 	 16,			/* rightshift */
    675  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    676  1.1  christos 	 16,			/* bitsize */
    677  1.1  christos 	 FALSE,			/* pc_relative */
    678  1.3  christos 	 0,			/* bitpos */
    679  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    680  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    681  1.1  christos 	 "R_PPC_PLT16_HI",	/* name */
    682  1.1  christos 	 FALSE,			/* partial_inplace */
    683  1.1  christos 	 0,			/* src_mask */
    684  1.1  christos 	 0xffff,		/* dst_mask */
    685  1.1  christos 	 FALSE),		 /* pcrel_offset */
    686  1.1  christos 
    687  1.1  christos   /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
    688  1.1  christos      the symbol.  */
    689  1.1  christos   HOWTO (R_PPC_PLT16_HA,	/* type */
    690  1.1  christos 	 16,			/* rightshift */
    691  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    692  1.1  christos 	 16,			/* bitsize */
    693  1.1  christos 	 FALSE,			/* pc_relative */
    694  1.3  christos 	 0,			/* bitpos */
    695  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    696  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    697  1.1  christos 	 "R_PPC_PLT16_HA",	/* name */
    698  1.1  christos 	 FALSE,			/* partial_inplace */
    699  1.1  christos 	 0,			/* src_mask */
    700  1.1  christos 	 0xffff,		/* dst_mask */
    701  1.1  christos 	 FALSE),		/* pcrel_offset */
    702  1.1  christos 
    703  1.1  christos   /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
    704  1.1  christos      small data items.  */
    705  1.1  christos   HOWTO (R_PPC_SDAREL16,	/* type */
    706  1.1  christos 	 0,			/* rightshift */
    707  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    708  1.1  christos 	 16,			/* bitsize */
    709  1.1  christos 	 FALSE,			/* pc_relative */
    710  1.1  christos 	 0,			/* bitpos */
    711  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
    712  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    713  1.1  christos 	 "R_PPC_SDAREL16",	/* name */
    714  1.1  christos 	 FALSE,			/* partial_inplace */
    715  1.1  christos 	 0,			/* src_mask */
    716  1.1  christos 	 0xffff,		/* dst_mask */
    717  1.1  christos 	 FALSE),		/* pcrel_offset */
    718  1.1  christos 
    719  1.1  christos   /* 16-bit section relative relocation.  */
    720  1.1  christos   HOWTO (R_PPC_SECTOFF,		/* type */
    721  1.1  christos 	 0,			/* rightshift */
    722  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    723  1.1  christos 	 16,			/* bitsize */
    724  1.1  christos 	 FALSE,			/* pc_relative */
    725  1.3  christos 	 0,			/* bitpos */
    726  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
    727  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    728  1.1  christos 	 "R_PPC_SECTOFF",	/* name */
    729  1.1  christos 	 FALSE,			/* partial_inplace */
    730  1.1  christos 	 0,			/* src_mask */
    731  1.1  christos 	 0xffff,		/* dst_mask */
    732  1.1  christos 	 FALSE),		/* pcrel_offset */
    733  1.1  christos 
    734  1.1  christos   /* 16-bit lower half section relative relocation.  */
    735  1.1  christos   HOWTO (R_PPC_SECTOFF_LO,	  /* type */
    736  1.1  christos 	 0,			/* rightshift */
    737  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    738  1.1  christos 	 16,			/* bitsize */
    739  1.1  christos 	 FALSE,			/* pc_relative */
    740  1.1  christos 	 0,			/* bitpos */
    741  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    742  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    743  1.1  christos 	 "R_PPC_SECTOFF_LO",	/* name */
    744  1.1  christos 	 FALSE,			/* partial_inplace */
    745  1.1  christos 	 0,			/* src_mask */
    746  1.1  christos 	 0xffff,		/* dst_mask */
    747  1.1  christos 	 FALSE),		/* pcrel_offset */
    748  1.1  christos 
    749  1.1  christos   /* 16-bit upper half section relative relocation.  */
    750  1.1  christos   HOWTO (R_PPC_SECTOFF_HI,	/* type */
    751  1.1  christos 	 16,			/* rightshift */
    752  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    753  1.1  christos 	 16,			/* bitsize */
    754  1.1  christos 	 FALSE,			/* pc_relative */
    755  1.3  christos 	 0,			/* bitpos */
    756  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    757  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    758  1.1  christos 	 "R_PPC_SECTOFF_HI",	/* name */
    759  1.1  christos 	 FALSE,			/* partial_inplace */
    760  1.1  christos 	 0,			/* src_mask */
    761  1.1  christos 	 0xffff,		/* dst_mask */
    762  1.1  christos 	 FALSE),		 /* pcrel_offset */
    763  1.1  christos 
    764  1.1  christos   /* 16-bit upper half adjusted section relative relocation.  */
    765  1.1  christos   HOWTO (R_PPC_SECTOFF_HA,	/* type */
    766  1.1  christos 	 16,			/* rightshift */
    767  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    768  1.1  christos 	 16,			/* bitsize */
    769  1.1  christos 	 FALSE,			/* pc_relative */
    770  1.3  christos 	 0,			/* bitpos */
    771  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    772  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    773  1.1  christos 	 "R_PPC_SECTOFF_HA",	/* name */
    774  1.1  christos 	 FALSE,			/* partial_inplace */
    775  1.1  christos 	 0,			/* src_mask */
    776  1.1  christos 	 0xffff,		/* dst_mask */
    777  1.1  christos 	 FALSE),		/* pcrel_offset */
    778  1.1  christos 
    779  1.1  christos   /* Marker relocs for TLS.  */
    780  1.1  christos   HOWTO (R_PPC_TLS,
    781  1.1  christos 	 0,			/* rightshift */
    782  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    783  1.1  christos 	 32,			/* bitsize */
    784  1.1  christos 	 FALSE,			/* pc_relative */
    785  1.1  christos 	 0,			/* bitpos */
    786  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    787  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    788  1.1  christos 	 "R_PPC_TLS",		/* name */
    789  1.1  christos 	 FALSE,			/* partial_inplace */
    790  1.1  christos 	 0,			/* src_mask */
    791  1.1  christos 	 0,			/* dst_mask */
    792  1.1  christos 	 FALSE),		/* pcrel_offset */
    793  1.1  christos 
    794  1.1  christos   HOWTO (R_PPC_TLSGD,
    795  1.1  christos 	 0,			/* rightshift */
    796  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    797  1.1  christos 	 32,			/* bitsize */
    798  1.1  christos 	 FALSE,			/* pc_relative */
    799  1.1  christos 	 0,			/* bitpos */
    800  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    801  1.1  christos 	 bfd_elf_generic_reloc, /* special_function */
    802  1.1  christos 	 "R_PPC_TLSGD",		/* name */
    803  1.1  christos 	 FALSE,			/* partial_inplace */
    804  1.1  christos 	 0,			/* src_mask */
    805  1.1  christos 	 0,			/* dst_mask */
    806  1.1  christos 	 FALSE),		/* pcrel_offset */
    807  1.1  christos 
    808  1.1  christos   HOWTO (R_PPC_TLSLD,
    809  1.1  christos 	 0,			/* rightshift */
    810  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    811  1.1  christos 	 32,			/* bitsize */
    812  1.1  christos 	 FALSE,			/* pc_relative */
    813  1.1  christos 	 0,			/* bitpos */
    814  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    815  1.1  christos 	 bfd_elf_generic_reloc, /* special_function */
    816  1.1  christos 	 "R_PPC_TLSLD",		/* name */
    817  1.1  christos 	 FALSE,			/* partial_inplace */
    818  1.1  christos 	 0,			/* src_mask */
    819  1.1  christos 	 0,			/* dst_mask */
    820  1.1  christos 	 FALSE),		/* pcrel_offset */
    821  1.7  christos 
    822  1.7  christos   /* Marker relocs on inline plt call instructions.  */
    823  1.7  christos   HOWTO (R_PPC_PLTSEQ,
    824  1.7  christos 	 0,			/* rightshift */
    825  1.7  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    826  1.7  christos 	 32,			/* bitsize */
    827  1.7  christos 	 FALSE,			/* pc_relative */
    828  1.7  christos 	 0,			/* bitpos */
    829  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    830  1.7  christos 	 bfd_elf_generic_reloc,	/* special_function */
    831  1.7  christos 	 "R_PPC_PLTSEQ",	/* name */
    832  1.7  christos 	 FALSE,			/* partial_inplace */
    833  1.7  christos 	 0,			/* src_mask */
    834  1.7  christos 	 0,			/* dst_mask */
    835  1.7  christos 	 FALSE),		/* pcrel_offset */
    836  1.7  christos 
    837  1.7  christos   HOWTO (R_PPC_PLTCALL,
    838  1.7  christos 	 0,			/* rightshift */
    839  1.7  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    840  1.7  christos 	 32,			/* bitsize */
    841  1.7  christos 	 FALSE,			/* pc_relative */
    842  1.7  christos 	 0,			/* bitpos */
    843  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
    844  1.7  christos 	 bfd_elf_generic_reloc,	/* special_function */
    845  1.7  christos 	 "R_PPC_PLTCALL",	/* name */
    846  1.7  christos 	 FALSE,			/* partial_inplace */
    847  1.7  christos 	 0,			/* src_mask */
    848  1.7  christos 	 0,			/* dst_mask */
    849  1.7  christos 	 FALSE),		/* pcrel_offset */
    850  1.1  christos 
    851  1.1  christos   /* Computes the load module index of the load module that contains the
    852  1.1  christos      definition of its TLS sym.  */
    853  1.1  christos   HOWTO (R_PPC_DTPMOD32,
    854  1.1  christos 	 0,			/* rightshift */
    855  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    856  1.1  christos 	 32,			/* bitsize */
    857  1.1  christos 	 FALSE,			/* pc_relative */
    858  1.1  christos 	 0,			/* bitpos */
    859  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    860  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    861  1.1  christos 	 "R_PPC_DTPMOD32",	/* name */
    862  1.1  christos 	 FALSE,			/* partial_inplace */
    863  1.1  christos 	 0,			/* src_mask */
    864  1.1  christos 	 0xffffffff,		/* dst_mask */
    865  1.1  christos 	 FALSE),		/* pcrel_offset */
    866  1.1  christos 
    867  1.1  christos   /* Computes a dtv-relative displacement, the difference between the value
    868  1.1  christos      of sym+add and the base address of the thread-local storage block that
    869  1.1  christos      contains the definition of sym, minus 0x8000.  */
    870  1.1  christos   HOWTO (R_PPC_DTPREL32,
    871  1.1  christos 	 0,			/* rightshift */
    872  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    873  1.1  christos 	 32,			/* bitsize */
    874  1.1  christos 	 FALSE,			/* pc_relative */
    875  1.1  christos 	 0,			/* bitpos */
    876  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    877  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    878  1.1  christos 	 "R_PPC_DTPREL32",	/* name */
    879  1.1  christos 	 FALSE,			/* partial_inplace */
    880  1.1  christos 	 0,			/* src_mask */
    881  1.1  christos 	 0xffffffff,		/* dst_mask */
    882  1.1  christos 	 FALSE),		/* pcrel_offset */
    883  1.1  christos 
    884  1.1  christos   /* A 16 bit dtprel reloc.  */
    885  1.1  christos   HOWTO (R_PPC_DTPREL16,
    886  1.1  christos 	 0,			/* rightshift */
    887  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    888  1.1  christos 	 16,			/* bitsize */
    889  1.1  christos 	 FALSE,			/* pc_relative */
    890  1.1  christos 	 0,			/* bitpos */
    891  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    892  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    893  1.1  christos 	 "R_PPC_DTPREL16",	/* name */
    894  1.1  christos 	 FALSE,			/* partial_inplace */
    895  1.1  christos 	 0,			/* src_mask */
    896  1.1  christos 	 0xffff,		/* dst_mask */
    897  1.1  christos 	 FALSE),		/* pcrel_offset */
    898  1.1  christos 
    899  1.1  christos   /* Like DTPREL16, but no overflow.  */
    900  1.1  christos   HOWTO (R_PPC_DTPREL16_LO,
    901  1.1  christos 	 0,			/* rightshift */
    902  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    903  1.1  christos 	 16,			/* bitsize */
    904  1.1  christos 	 FALSE,			/* pc_relative */
    905  1.1  christos 	 0,			/* bitpos */
    906  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    907  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    908  1.1  christos 	 "R_PPC_DTPREL16_LO",	/* name */
    909  1.1  christos 	 FALSE,			/* partial_inplace */
    910  1.1  christos 	 0,			/* src_mask */
    911  1.1  christos 	 0xffff,		/* dst_mask */
    912  1.1  christos 	 FALSE),		/* pcrel_offset */
    913  1.1  christos 
    914  1.1  christos   /* Like DTPREL16_LO, but next higher group of 16 bits.  */
    915  1.1  christos   HOWTO (R_PPC_DTPREL16_HI,
    916  1.1  christos 	 16,			/* rightshift */
    917  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    918  1.1  christos 	 16,			/* bitsize */
    919  1.1  christos 	 FALSE,			/* pc_relative */
    920  1.1  christos 	 0,			/* bitpos */
    921  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    922  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    923  1.1  christos 	 "R_PPC_DTPREL16_HI",	/* name */
    924  1.1  christos 	 FALSE,			/* partial_inplace */
    925  1.1  christos 	 0,			/* src_mask */
    926  1.1  christos 	 0xffff,		/* dst_mask */
    927  1.1  christos 	 FALSE),		/* pcrel_offset */
    928  1.1  christos 
    929  1.1  christos   /* Like DTPREL16_HI, but adjust for low 16 bits.  */
    930  1.1  christos   HOWTO (R_PPC_DTPREL16_HA,
    931  1.1  christos 	 16,			/* rightshift */
    932  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    933  1.1  christos 	 16,			/* bitsize */
    934  1.1  christos 	 FALSE,			/* pc_relative */
    935  1.1  christos 	 0,			/* bitpos */
    936  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    937  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    938  1.1  christos 	 "R_PPC_DTPREL16_HA",	/* name */
    939  1.1  christos 	 FALSE,			/* partial_inplace */
    940  1.1  christos 	 0,			/* src_mask */
    941  1.1  christos 	 0xffff,		/* dst_mask */
    942  1.1  christos 	 FALSE),		/* pcrel_offset */
    943  1.1  christos 
    944  1.1  christos   /* Computes a tp-relative displacement, the difference between the value of
    945  1.1  christos      sym+add and the value of the thread pointer (r13).  */
    946  1.1  christos   HOWTO (R_PPC_TPREL32,
    947  1.1  christos 	 0,			/* rightshift */
    948  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    949  1.1  christos 	 32,			/* bitsize */
    950  1.1  christos 	 FALSE,			/* pc_relative */
    951  1.1  christos 	 0,			/* bitpos */
    952  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    953  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    954  1.1  christos 	 "R_PPC_TPREL32",	/* name */
    955  1.1  christos 	 FALSE,			/* partial_inplace */
    956  1.1  christos 	 0,			/* src_mask */
    957  1.1  christos 	 0xffffffff,		/* dst_mask */
    958  1.1  christos 	 FALSE),		/* pcrel_offset */
    959  1.1  christos 
    960  1.1  christos   /* A 16 bit tprel reloc.  */
    961  1.1  christos   HOWTO (R_PPC_TPREL16,
    962  1.1  christos 	 0,			/* rightshift */
    963  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    964  1.1  christos 	 16,			/* bitsize */
    965  1.1  christos 	 FALSE,			/* pc_relative */
    966  1.1  christos 	 0,			/* bitpos */
    967  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    968  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    969  1.1  christos 	 "R_PPC_TPREL16",	/* name */
    970  1.1  christos 	 FALSE,			/* partial_inplace */
    971  1.1  christos 	 0,			/* src_mask */
    972  1.1  christos 	 0xffff,		/* dst_mask */
    973  1.1  christos 	 FALSE),		/* pcrel_offset */
    974  1.1  christos 
    975  1.1  christos   /* Like TPREL16, but no overflow.  */
    976  1.1  christos   HOWTO (R_PPC_TPREL16_LO,
    977  1.1  christos 	 0,			/* rightshift */
    978  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    979  1.1  christos 	 16,			/* bitsize */
    980  1.1  christos 	 FALSE,			/* pc_relative */
    981  1.1  christos 	 0,			/* bitpos */
    982  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    983  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    984  1.1  christos 	 "R_PPC_TPREL16_LO",	/* name */
    985  1.1  christos 	 FALSE,			/* partial_inplace */
    986  1.1  christos 	 0,			/* src_mask */
    987  1.1  christos 	 0xffff,		/* dst_mask */
    988  1.1  christos 	 FALSE),		/* pcrel_offset */
    989  1.1  christos 
    990  1.1  christos   /* Like TPREL16_LO, but next higher group of 16 bits.  */
    991  1.1  christos   HOWTO (R_PPC_TPREL16_HI,
    992  1.1  christos 	 16,			/* rightshift */
    993  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    994  1.1  christos 	 16,			/* bitsize */
    995  1.1  christos 	 FALSE,			/* pc_relative */
    996  1.1  christos 	 0,			/* bitpos */
    997  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    998  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    999  1.1  christos 	 "R_PPC_TPREL16_HI",	/* name */
   1000  1.1  christos 	 FALSE,			/* partial_inplace */
   1001  1.1  christos 	 0,			/* src_mask */
   1002  1.1  christos 	 0xffff,		/* dst_mask */
   1003  1.1  christos 	 FALSE),		/* pcrel_offset */
   1004  1.1  christos 
   1005  1.1  christos   /* Like TPREL16_HI, but adjust for low 16 bits.  */
   1006  1.1  christos   HOWTO (R_PPC_TPREL16_HA,
   1007  1.1  christos 	 16,			/* rightshift */
   1008  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1009  1.1  christos 	 16,			/* bitsize */
   1010  1.1  christos 	 FALSE,			/* pc_relative */
   1011  1.1  christos 	 0,			/* bitpos */
   1012  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1013  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1014  1.1  christos 	 "R_PPC_TPREL16_HA",	/* name */
   1015  1.1  christos 	 FALSE,			/* partial_inplace */
   1016  1.1  christos 	 0,			/* src_mask */
   1017  1.1  christos 	 0xffff,		/* dst_mask */
   1018  1.1  christos 	 FALSE),		/* pcrel_offset */
   1019  1.1  christos 
   1020  1.1  christos   /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
   1021  1.1  christos      with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
   1022  1.1  christos      to the first entry.  */
   1023  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16,
   1024  1.1  christos 	 0,			/* rightshift */
   1025  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1026  1.1  christos 	 16,			/* bitsize */
   1027  1.1  christos 	 FALSE,			/* pc_relative */
   1028  1.1  christos 	 0,			/* bitpos */
   1029  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1030  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1031  1.1  christos 	 "R_PPC_GOT_TLSGD16",	/* name */
   1032  1.1  christos 	 FALSE,			/* partial_inplace */
   1033  1.1  christos 	 0,			/* src_mask */
   1034  1.1  christos 	 0xffff,		/* dst_mask */
   1035  1.1  christos 	 FALSE),		/* pcrel_offset */
   1036  1.1  christos 
   1037  1.1  christos   /* Like GOT_TLSGD16, but no overflow.  */
   1038  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_LO,
   1039  1.1  christos 	 0,			/* rightshift */
   1040  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1041  1.1  christos 	 16,			/* bitsize */
   1042  1.1  christos 	 FALSE,			/* pc_relative */
   1043  1.1  christos 	 0,			/* bitpos */
   1044  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1045  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1046  1.1  christos 	 "R_PPC_GOT_TLSGD16_LO", /* name */
   1047  1.1  christos 	 FALSE,			/* partial_inplace */
   1048  1.1  christos 	 0,			/* src_mask */
   1049  1.1  christos 	 0xffff,		/* dst_mask */
   1050  1.1  christos 	 FALSE),		/* pcrel_offset */
   1051  1.1  christos 
   1052  1.1  christos   /* Like GOT_TLSGD16_LO, but next higher group of 16 bits.  */
   1053  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_HI,
   1054  1.1  christos 	 16,			/* rightshift */
   1055  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1056  1.1  christos 	 16,			/* bitsize */
   1057  1.1  christos 	 FALSE,			/* pc_relative */
   1058  1.1  christos 	 0,			/* bitpos */
   1059  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1060  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1061  1.1  christos 	 "R_PPC_GOT_TLSGD16_HI", /* name */
   1062  1.1  christos 	 FALSE,			/* partial_inplace */
   1063  1.1  christos 	 0,			/* src_mask */
   1064  1.1  christos 	 0xffff,		/* dst_mask */
   1065  1.1  christos 	 FALSE),		/* pcrel_offset */
   1066  1.1  christos 
   1067  1.1  christos   /* Like GOT_TLSGD16_HI, but adjust for low 16 bits.  */
   1068  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_HA,
   1069  1.1  christos 	 16,			/* rightshift */
   1070  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1071  1.1  christos 	 16,			/* bitsize */
   1072  1.1  christos 	 FALSE,			/* pc_relative */
   1073  1.1  christos 	 0,			/* bitpos */
   1074  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1075  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1076  1.1  christos 	 "R_PPC_GOT_TLSGD16_HA", /* name */
   1077  1.1  christos 	 FALSE,			/* partial_inplace */
   1078  1.1  christos 	 0,			/* src_mask */
   1079  1.1  christos 	 0xffff,		/* dst_mask */
   1080  1.1  christos 	 FALSE),		/* pcrel_offset */
   1081  1.1  christos 
   1082  1.1  christos   /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
   1083  1.1  christos      with values (sym+add)@dtpmod and zero, and computes the offset to the
   1084  1.1  christos      first entry.  */
   1085  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16,
   1086  1.1  christos 	 0,			/* rightshift */
   1087  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1088  1.1  christos 	 16,			/* bitsize */
   1089  1.1  christos 	 FALSE,			/* pc_relative */
   1090  1.1  christos 	 0,			/* bitpos */
   1091  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1092  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1093  1.1  christos 	 "R_PPC_GOT_TLSLD16",	/* name */
   1094  1.1  christos 	 FALSE,			/* partial_inplace */
   1095  1.1  christos 	 0,			/* src_mask */
   1096  1.1  christos 	 0xffff,		/* dst_mask */
   1097  1.1  christos 	 FALSE),		/* pcrel_offset */
   1098  1.1  christos 
   1099  1.1  christos   /* Like GOT_TLSLD16, but no overflow.  */
   1100  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_LO,
   1101  1.1  christos 	 0,			/* rightshift */
   1102  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1103  1.1  christos 	 16,			/* bitsize */
   1104  1.1  christos 	 FALSE,			/* pc_relative */
   1105  1.1  christos 	 0,			/* bitpos */
   1106  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1107  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1108  1.1  christos 	 "R_PPC_GOT_TLSLD16_LO", /* name */
   1109  1.1  christos 	 FALSE,			/* partial_inplace */
   1110  1.1  christos 	 0,			/* src_mask */
   1111  1.1  christos 	 0xffff,		/* dst_mask */
   1112  1.1  christos 	 FALSE),		/* pcrel_offset */
   1113  1.1  christos 
   1114  1.1  christos   /* Like GOT_TLSLD16_LO, but next higher group of 16 bits.  */
   1115  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_HI,
   1116  1.1  christos 	 16,			/* rightshift */
   1117  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1118  1.1  christos 	 16,			/* bitsize */
   1119  1.1  christos 	 FALSE,			/* pc_relative */
   1120  1.1  christos 	 0,			/* bitpos */
   1121  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1122  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1123  1.1  christos 	 "R_PPC_GOT_TLSLD16_HI", /* name */
   1124  1.1  christos 	 FALSE,			/* partial_inplace */
   1125  1.1  christos 	 0,			/* src_mask */
   1126  1.1  christos 	 0xffff,		/* dst_mask */
   1127  1.1  christos 	 FALSE),		/* pcrel_offset */
   1128  1.1  christos 
   1129  1.1  christos   /* Like GOT_TLSLD16_HI, but adjust for low 16 bits.  */
   1130  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_HA,
   1131  1.1  christos 	 16,			/* rightshift */
   1132  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1133  1.1  christos 	 16,			/* bitsize */
   1134  1.1  christos 	 FALSE,			/* pc_relative */
   1135  1.1  christos 	 0,			/* bitpos */
   1136  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1137  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1138  1.1  christos 	 "R_PPC_GOT_TLSLD16_HA", /* name */
   1139  1.1  christos 	 FALSE,			/* partial_inplace */
   1140  1.1  christos 	 0,			/* src_mask */
   1141  1.1  christos 	 0xffff,		/* dst_mask */
   1142  1.1  christos 	 FALSE),		/* pcrel_offset */
   1143  1.1  christos 
   1144  1.1  christos   /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
   1145  1.1  christos      the offset to the entry.  */
   1146  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16,
   1147  1.1  christos 	 0,			/* rightshift */
   1148  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1149  1.1  christos 	 16,			/* bitsize */
   1150  1.1  christos 	 FALSE,			/* pc_relative */
   1151  1.1  christos 	 0,			/* bitpos */
   1152  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1153  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1154  1.1  christos 	 "R_PPC_GOT_DTPREL16",	/* name */
   1155  1.1  christos 	 FALSE,			/* partial_inplace */
   1156  1.1  christos 	 0,			/* src_mask */
   1157  1.1  christos 	 0xffff,		/* dst_mask */
   1158  1.1  christos 	 FALSE),		/* pcrel_offset */
   1159  1.1  christos 
   1160  1.1  christos   /* Like GOT_DTPREL16, but no overflow.  */
   1161  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_LO,
   1162  1.1  christos 	 0,			/* rightshift */
   1163  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1164  1.1  christos 	 16,			/* bitsize */
   1165  1.1  christos 	 FALSE,			/* pc_relative */
   1166  1.1  christos 	 0,			/* bitpos */
   1167  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1168  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1169  1.1  christos 	 "R_PPC_GOT_DTPREL16_LO", /* name */
   1170  1.1  christos 	 FALSE,			/* partial_inplace */
   1171  1.1  christos 	 0,			/* src_mask */
   1172  1.1  christos 	 0xffff,		/* dst_mask */
   1173  1.1  christos 	 FALSE),		/* pcrel_offset */
   1174  1.1  christos 
   1175  1.1  christos   /* Like GOT_DTPREL16_LO, but next higher group of 16 bits.  */
   1176  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_HI,
   1177  1.1  christos 	 16,			/* rightshift */
   1178  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1179  1.1  christos 	 16,			/* bitsize */
   1180  1.1  christos 	 FALSE,			/* pc_relative */
   1181  1.1  christos 	 0,			/* bitpos */
   1182  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1183  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1184  1.1  christos 	 "R_PPC_GOT_DTPREL16_HI", /* name */
   1185  1.1  christos 	 FALSE,			/* partial_inplace */
   1186  1.1  christos 	 0,			/* src_mask */
   1187  1.1  christos 	 0xffff,		/* dst_mask */
   1188  1.1  christos 	 FALSE),		/* pcrel_offset */
   1189  1.1  christos 
   1190  1.1  christos   /* Like GOT_DTPREL16_HI, but adjust for low 16 bits.  */
   1191  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_HA,
   1192  1.1  christos 	 16,			/* rightshift */
   1193  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1194  1.1  christos 	 16,			/* bitsize */
   1195  1.1  christos 	 FALSE,			/* pc_relative */
   1196  1.1  christos 	 0,			/* bitpos */
   1197  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1198  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1199  1.1  christos 	 "R_PPC_GOT_DTPREL16_HA", /* name */
   1200  1.1  christos 	 FALSE,			/* partial_inplace */
   1201  1.1  christos 	 0,			/* src_mask */
   1202  1.1  christos 	 0xffff,		/* dst_mask */
   1203  1.1  christos 	 FALSE),		/* pcrel_offset */
   1204  1.1  christos 
   1205  1.1  christos   /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
   1206  1.1  christos      offset to the entry.  */
   1207  1.1  christos   HOWTO (R_PPC_GOT_TPREL16,
   1208  1.1  christos 	 0,			/* rightshift */
   1209  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1210  1.1  christos 	 16,			/* bitsize */
   1211  1.1  christos 	 FALSE,			/* pc_relative */
   1212  1.1  christos 	 0,			/* bitpos */
   1213  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1214  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1215  1.1  christos 	 "R_PPC_GOT_TPREL16",	/* name */
   1216  1.1  christos 	 FALSE,			/* partial_inplace */
   1217  1.1  christos 	 0,			/* src_mask */
   1218  1.1  christos 	 0xffff,		/* dst_mask */
   1219  1.1  christos 	 FALSE),		/* pcrel_offset */
   1220  1.1  christos 
   1221  1.1  christos   /* Like GOT_TPREL16, but no overflow.  */
   1222  1.1  christos   HOWTO (R_PPC_GOT_TPREL16_LO,
   1223  1.1  christos 	 0,			/* rightshift */
   1224  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1225  1.1  christos 	 16,			/* bitsize */
   1226  1.1  christos 	 FALSE,			/* pc_relative */
   1227  1.1  christos 	 0,			/* bitpos */
   1228  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1229  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1230  1.1  christos 	 "R_PPC_GOT_TPREL16_LO", /* name */
   1231  1.1  christos 	 FALSE,			/* partial_inplace */
   1232  1.1  christos 	 0,			/* src_mask */
   1233  1.1  christos 	 0xffff,		/* dst_mask */
   1234  1.1  christos 	 FALSE),		/* pcrel_offset */
   1235  1.1  christos 
   1236  1.1  christos   /* Like GOT_TPREL16_LO, but next higher group of 16 bits.  */
   1237  1.1  christos   HOWTO (R_PPC_GOT_TPREL16_HI,
   1238  1.1  christos 	 16,			/* rightshift */
   1239  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1240  1.1  christos 	 16,			/* bitsize */
   1241  1.1  christos 	 FALSE,			/* pc_relative */
   1242  1.1  christos 	 0,			/* bitpos */
   1243  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1244  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1245  1.1  christos 	 "R_PPC_GOT_TPREL16_HI", /* name */
   1246  1.1  christos 	 FALSE,			/* partial_inplace */
   1247  1.1  christos 	 0,			/* src_mask */
   1248  1.1  christos 	 0xffff,		/* dst_mask */
   1249  1.1  christos 	 FALSE),		/* pcrel_offset */
   1250  1.1  christos 
   1251  1.1  christos   /* Like GOT_TPREL16_HI, but adjust for low 16 bits.  */
   1252  1.1  christos   HOWTO (R_PPC_GOT_TPREL16_HA,
   1253  1.1  christos 	 16,			/* rightshift */
   1254  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1255  1.1  christos 	 16,			/* bitsize */
   1256  1.1  christos 	 FALSE,			/* pc_relative */
   1257  1.1  christos 	 0,			/* bitpos */
   1258  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1259  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1260  1.1  christos 	 "R_PPC_GOT_TPREL16_HA", /* name */
   1261  1.1  christos 	 FALSE,			/* partial_inplace */
   1262  1.1  christos 	 0,			/* src_mask */
   1263  1.1  christos 	 0xffff,		/* dst_mask */
   1264  1.1  christos 	 FALSE),		/* pcrel_offset */
   1265  1.1  christos 
   1266  1.1  christos   /* The remaining relocs are from the Embedded ELF ABI, and are not
   1267  1.1  christos      in the SVR4 ELF ABI.  */
   1268  1.1  christos 
   1269  1.1  christos   /* 32 bit value resulting from the addend minus the symbol.  */
   1270  1.1  christos   HOWTO (R_PPC_EMB_NADDR32,	/* type */
   1271  1.1  christos 	 0,			/* rightshift */
   1272  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1273  1.1  christos 	 32,			/* bitsize */
   1274  1.1  christos 	 FALSE,			/* pc_relative */
   1275  1.3  christos 	 0,			/* bitpos */
   1276  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1277  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1278  1.1  christos 	 "R_PPC_EMB_NADDR32",	/* name */
   1279  1.1  christos 	 FALSE,			/* partial_inplace */
   1280  1.1  christos 	 0,			/* src_mask */
   1281  1.1  christos 	 0xffffffff,		/* dst_mask */
   1282  1.1  christos 	 FALSE),		/* pcrel_offset */
   1283  1.1  christos 
   1284  1.1  christos   /* 16 bit value resulting from the addend minus the symbol.  */
   1285  1.1  christos   HOWTO (R_PPC_EMB_NADDR16,	/* type */
   1286  1.1  christos 	 0,			/* rightshift */
   1287  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1288  1.1  christos 	 16,			/* bitsize */
   1289  1.1  christos 	 FALSE,			/* pc_relative */
   1290  1.3  christos 	 0,			/* bitpos */
   1291  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1292  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1293  1.1  christos 	 "R_PPC_EMB_NADDR16",	/* name */
   1294  1.1  christos 	 FALSE,			/* partial_inplace */
   1295  1.1  christos 	 0,			/* src_mask */
   1296  1.1  christos 	 0xffff,		/* dst_mask */
   1297  1.1  christos 	 FALSE),		/* pcrel_offset */
   1298  1.1  christos 
   1299  1.1  christos   /* 16 bit value resulting from the addend minus the symbol.  */
   1300  1.1  christos   HOWTO (R_PPC_EMB_NADDR16_LO,	/* type */
   1301  1.1  christos 	 0,			/* rightshift */
   1302  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1303  1.1  christos 	 16,			/* bitsize */
   1304  1.1  christos 	 FALSE,			/* pc_relative */
   1305  1.1  christos 	 0,			/* bitpos */
   1306  1.7  christos 	 complain_overflow_dont,/* complain_on_overflow */
   1307  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1308  1.1  christos 	 "R_PPC_EMB_ADDR16_LO",	/* name */
   1309  1.1  christos 	 FALSE,			/* partial_inplace */
   1310  1.1  christos 	 0,			/* src_mask */
   1311  1.1  christos 	 0xffff,		/* dst_mask */
   1312  1.1  christos 	 FALSE),		/* pcrel_offset */
   1313  1.1  christos 
   1314  1.1  christos   /* The high order 16 bits of the addend minus the symbol.  */
   1315  1.1  christos   HOWTO (R_PPC_EMB_NADDR16_HI,	/* type */
   1316  1.1  christos 	 16,			/* rightshift */
   1317  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1318  1.1  christos 	 16,			/* bitsize */
   1319  1.1  christos 	 FALSE,			/* pc_relative */
   1320  1.1  christos 	 0,			/* bitpos */
   1321  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1322  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1323  1.1  christos 	 "R_PPC_EMB_NADDR16_HI", /* name */
   1324  1.1  christos 	 FALSE,			/* partial_inplace */
   1325  1.1  christos 	 0,			/* src_mask */
   1326  1.1  christos 	 0xffff,		/* dst_mask */
   1327  1.1  christos 	 FALSE),		/* pcrel_offset */
   1328  1.1  christos 
   1329  1.1  christos   /* The high order 16 bits of the result of the addend minus the address,
   1330  1.1  christos      plus 1 if the contents of the low 16 bits, treated as a signed number,
   1331  1.1  christos      is negative.  */
   1332  1.1  christos   HOWTO (R_PPC_EMB_NADDR16_HA,	/* type */
   1333  1.1  christos 	 16,			/* rightshift */
   1334  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1335  1.1  christos 	 16,			/* bitsize */
   1336  1.1  christos 	 FALSE,			/* pc_relative */
   1337  1.1  christos 	 0,			/* bitpos */
   1338  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1339  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1340  1.1  christos 	 "R_PPC_EMB_NADDR16_HA", /* name */
   1341  1.1  christos 	 FALSE,			/* partial_inplace */
   1342  1.1  christos 	 0,			/* src_mask */
   1343  1.1  christos 	 0xffff,		/* dst_mask */
   1344  1.1  christos 	 FALSE),		/* pcrel_offset */
   1345  1.1  christos 
   1346  1.1  christos   /* 16 bit value resulting from allocating a 4 byte word to hold an
   1347  1.1  christos      address in the .sdata section, and returning the offset from
   1348  1.1  christos      _SDA_BASE_ for that relocation.  */
   1349  1.1  christos   HOWTO (R_PPC_EMB_SDAI16,	/* type */
   1350  1.1  christos 	 0,			/* rightshift */
   1351  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1352  1.1  christos 	 16,			/* bitsize */
   1353  1.1  christos 	 FALSE,			/* pc_relative */
   1354  1.1  christos 	 0,			/* bitpos */
   1355  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1356  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1357  1.1  christos 	 "R_PPC_EMB_SDAI16",	/* name */
   1358  1.1  christos 	 FALSE,			/* partial_inplace */
   1359  1.1  christos 	 0,			/* src_mask */
   1360  1.1  christos 	 0xffff,		/* dst_mask */
   1361  1.1  christos 	 FALSE),		/* pcrel_offset */
   1362  1.1  christos 
   1363  1.1  christos   /* 16 bit value resulting from allocating a 4 byte word to hold an
   1364  1.1  christos      address in the .sdata2 section, and returning the offset from
   1365  1.1  christos      _SDA2_BASE_ for that relocation.  */
   1366  1.1  christos   HOWTO (R_PPC_EMB_SDA2I16,	/* type */
   1367  1.1  christos 	 0,			/* rightshift */
   1368  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1369  1.1  christos 	 16,			/* bitsize */
   1370  1.1  christos 	 FALSE,			/* pc_relative */
   1371  1.1  christos 	 0,			/* bitpos */
   1372  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1373  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1374  1.1  christos 	 "R_PPC_EMB_SDA2I16",	/* name */
   1375  1.1  christos 	 FALSE,			/* partial_inplace */
   1376  1.1  christos 	 0,			/* src_mask */
   1377  1.1  christos 	 0xffff,		/* dst_mask */
   1378  1.1  christos 	 FALSE),		/* pcrel_offset */
   1379  1.1  christos 
   1380  1.1  christos   /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
   1381  1.1  christos      small data items.	 */
   1382  1.1  christos   HOWTO (R_PPC_EMB_SDA2REL,	/* type */
   1383  1.1  christos 	 0,			/* rightshift */
   1384  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1385  1.1  christos 	 16,			/* bitsize */
   1386  1.1  christos 	 FALSE,			/* pc_relative */
   1387  1.1  christos 	 0,			/* bitpos */
   1388  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1389  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1390  1.1  christos 	 "R_PPC_EMB_SDA2REL",	/* name */
   1391  1.1  christos 	 FALSE,			/* partial_inplace */
   1392  1.1  christos 	 0,			/* src_mask */
   1393  1.1  christos 	 0xffff,		/* dst_mask */
   1394  1.1  christos 	 FALSE),		/* pcrel_offset */
   1395  1.1  christos 
   1396  1.1  christos   /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
   1397  1.1  christos      signed offset from the appropriate base, and filling in the register
   1398  1.1  christos      field with the appropriate register (0, 2, or 13).  */
   1399  1.1  christos   HOWTO (R_PPC_EMB_SDA21,	/* type */
   1400  1.1  christos 	 0,			/* rightshift */
   1401  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1402  1.1  christos 	 16,			/* bitsize */
   1403  1.1  christos 	 FALSE,			/* pc_relative */
   1404  1.1  christos 	 0,			/* bitpos */
   1405  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1406  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1407  1.1  christos 	 "R_PPC_EMB_SDA21",	/* name */
   1408  1.1  christos 	 FALSE,			/* partial_inplace */
   1409  1.1  christos 	 0,			/* src_mask */
   1410  1.1  christos 	 0xffff,		/* dst_mask */
   1411  1.1  christos 	 FALSE),		/* pcrel_offset */
   1412  1.1  christos 
   1413  1.1  christos   /* Relocation not handled: R_PPC_EMB_MRKREF */
   1414  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELSEC16 */
   1415  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_LO */
   1416  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_HI */
   1417  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_HA */
   1418  1.1  christos   /* Relocation not handled: R_PPC_EMB_BIT_FLD */
   1419  1.1  christos 
   1420  1.1  christos   /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
   1421  1.1  christos      in the 16 bit signed offset from the appropriate base, and filling in the
   1422  1.1  christos      register field with the appropriate register (0, 2, or 13).  */
   1423  1.1  christos   HOWTO (R_PPC_EMB_RELSDA,	/* type */
   1424  1.1  christos 	 0,			/* rightshift */
   1425  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1426  1.1  christos 	 16,			/* bitsize */
   1427  1.1  christos 	 FALSE,			/* pc_relative */
   1428  1.1  christos 	 0,			/* bitpos */
   1429  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1430  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1431  1.1  christos 	 "R_PPC_EMB_RELSDA",	/* name */
   1432  1.1  christos 	 FALSE,			/* partial_inplace */
   1433  1.1  christos 	 0,			/* src_mask */
   1434  1.1  christos 	 0xffff,		/* dst_mask */
   1435  1.1  christos 	 FALSE),		/* pcrel_offset */
   1436  1.1  christos 
   1437  1.1  christos   /* A relative 8 bit branch.  */
   1438  1.1  christos   HOWTO (R_PPC_VLE_REL8,	/* type */
   1439  1.1  christos 	 1,			/* rightshift */
   1440  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1441  1.1  christos 	 8,			/* bitsize */
   1442  1.1  christos 	 TRUE,			/* pc_relative */
   1443  1.1  christos 	 0,			/* bitpos */
   1444  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1445  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1446  1.1  christos 	 "R_PPC_VLE_REL8",	/* name */
   1447  1.1  christos 	 FALSE,			/* partial_inplace */
   1448  1.1  christos 	 0,			/* src_mask */
   1449  1.1  christos 	 0xff,			/* dst_mask */
   1450  1.3  christos 	 TRUE),			/* pcrel_offset */
   1451  1.1  christos 
   1452  1.1  christos   /* A relative 15 bit branch.  */
   1453  1.1  christos   HOWTO (R_PPC_VLE_REL15,	/* type */
   1454  1.1  christos 	 1,			/* rightshift */
   1455  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1456  1.1  christos 	 15,			/* bitsize */
   1457  1.1  christos 	 TRUE,			/* pc_relative */
   1458  1.1  christos 	 1,			/* bitpos */
   1459  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1460  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1461  1.1  christos 	 "R_PPC_VLE_REL15",	/* name */
   1462  1.1  christos 	 FALSE,			/* partial_inplace */
   1463  1.7  christos 	 0,			/* src_mask */
   1464  1.1  christos 	 0xfffe,		/* dst_mask */
   1465  1.1  christos 	 TRUE),			/* pcrel_offset */
   1466  1.3  christos 
   1467  1.1  christos   /* A relative 24 bit branch.  */
   1468  1.1  christos   HOWTO (R_PPC_VLE_REL24,	/* type */
   1469  1.1  christos 	 1,			/* rightshift */
   1470  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1471  1.1  christos 	 24,			/* bitsize */
   1472  1.1  christos 	 TRUE,			/* pc_relative */
   1473  1.1  christos 	 1,			/* bitpos */
   1474  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1475  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1476  1.1  christos 	 "R_PPC_VLE_REL24",	/* name */
   1477  1.1  christos 	 FALSE,			/* partial_inplace */
   1478  1.1  christos 	 0,			/* src_mask */
   1479  1.1  christos 	 0x1fffffe,		/* dst_mask */
   1480  1.1  christos 	 TRUE),			/* pcrel_offset */
   1481  1.1  christos 
   1482  1.1  christos   /* The 16 LSBS in split16a format.  */
   1483  1.1  christos   HOWTO (R_PPC_VLE_LO16A,	/* type */
   1484  1.1  christos 	 0,			/* rightshift */
   1485  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1486  1.1  christos 	 16,			/* bitsize */
   1487  1.1  christos 	 FALSE,			/* pc_relative */
   1488  1.3  christos 	 0,			/* bitpos */
   1489  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1490  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1491  1.1  christos 	 "R_PPC_VLE_LO16A",	/* name */
   1492  1.1  christos 	 FALSE,			/* partial_inplace */
   1493  1.7  christos 	 0,			/* src_mask */
   1494  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1495  1.1  christos 	 FALSE),		/* pcrel_offset */
   1496  1.1  christos 
   1497  1.1  christos   /* The 16 LSBS in split16d format.  */
   1498  1.1  christos   HOWTO (R_PPC_VLE_LO16D,	/* type */
   1499  1.1  christos 	 0,			/* rightshift */
   1500  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1501  1.1  christos 	 16,			/* bitsize */
   1502  1.1  christos 	 FALSE,			/* pc_relative */
   1503  1.3  christos 	 0,			/* bitpos */
   1504  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1505  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1506  1.1  christos 	 "R_PPC_VLE_LO16D",	/* name */
   1507  1.1  christos 	 FALSE,			/* partial_inplace */
   1508  1.7  christos 	 0,			/* src_mask */
   1509  1.1  christos 	 0x3e007ff,		/* dst_mask */
   1510  1.1  christos 	 FALSE),		/* pcrel_offset */
   1511  1.1  christos 
   1512  1.1  christos   /* Bits 16-31 split16a format.  */
   1513  1.3  christos   HOWTO (R_PPC_VLE_HI16A,	/* type */
   1514  1.1  christos 	 16,			/* rightshift */
   1515  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1516  1.1  christos 	 16,			/* bitsize */
   1517  1.1  christos 	 FALSE,			/* pc_relative */
   1518  1.3  christos 	 0,			/* bitpos */
   1519  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1520  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1521  1.1  christos 	 "R_PPC_VLE_HI16A",	/* name */
   1522  1.1  christos 	 FALSE,			/* partial_inplace */
   1523  1.7  christos 	 0,			/* src_mask */
   1524  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1525  1.1  christos 	 FALSE),		/* pcrel_offset */
   1526  1.1  christos 
   1527  1.1  christos   /* Bits 16-31 split16d format.  */
   1528  1.3  christos   HOWTO (R_PPC_VLE_HI16D,	/* type */
   1529  1.1  christos 	 16,			/* rightshift */
   1530  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1531  1.1  christos 	 16,			/* bitsize */
   1532  1.1  christos 	 FALSE,			/* pc_relative */
   1533  1.3  christos 	 0,			/* bitpos */
   1534  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1535  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1536  1.1  christos 	 "R_PPC_VLE_HI16D",	/* name */
   1537  1.1  christos 	 FALSE,			/* partial_inplace */
   1538  1.7  christos 	 0,			/* src_mask */
   1539  1.1  christos 	 0x3e007ff,		/* dst_mask */
   1540  1.1  christos 	 FALSE),		/* pcrel_offset */
   1541  1.1  christos 
   1542  1.1  christos   /* Bits 16-31 (High Adjusted) in split16a format.  */
   1543  1.3  christos   HOWTO (R_PPC_VLE_HA16A,	/* type */
   1544  1.1  christos 	 16,			/* rightshift */
   1545  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1546  1.1  christos 	 16,			/* bitsize */
   1547  1.1  christos 	 FALSE,			/* pc_relative */
   1548  1.3  christos 	 0,			/* bitpos */
   1549  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1550  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1551  1.1  christos 	 "R_PPC_VLE_HA16A",	/* name */
   1552  1.1  christos 	 FALSE,			/* partial_inplace */
   1553  1.7  christos 	 0,			/* src_mask */
   1554  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1555  1.1  christos 	 FALSE),		/* pcrel_offset */
   1556  1.1  christos 
   1557  1.1  christos   /* Bits 16-31 (High Adjusted) in split16d format.  */
   1558  1.3  christos   HOWTO (R_PPC_VLE_HA16D,	/* type */
   1559  1.1  christos 	 16,			/* rightshift */
   1560  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1561  1.1  christos 	 16,			/* bitsize */
   1562  1.1  christos 	 FALSE,			/* pc_relative */
   1563  1.3  christos 	 0,			/* bitpos */
   1564  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1565  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1566  1.1  christos 	 "R_PPC_VLE_HA16D",	/* name */
   1567  1.1  christos 	 FALSE,			/* partial_inplace */
   1568  1.7  christos 	 0,			/* src_mask */
   1569  1.1  christos 	 0x3e007ff,		/* dst_mask */
   1570  1.1  christos 	 FALSE),		/* pcrel_offset */
   1571  1.3  christos 
   1572  1.3  christos   /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i
   1573  1.3  christos      instructions.  If the register base is 0 then the linker changes
   1574  1.3  christos      the e_add16i to an e_li instruction.  */
   1575  1.1  christos   HOWTO (R_PPC_VLE_SDA21,	/* type */
   1576  1.1  christos 	 0,			/* rightshift */
   1577  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1578  1.1  christos 	 16,			/* bitsize */
   1579  1.1  christos 	 FALSE,			/* pc_relative */
   1580  1.3  christos 	 0,			/* bitpos */
   1581  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1582  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1583  1.1  christos 	 "R_PPC_VLE_SDA21",	/* name */
   1584  1.1  christos 	 FALSE,			/* partial_inplace */
   1585  1.1  christos 	 0,			/* src_mask */
   1586  1.1  christos 	 0xffff,		/* dst_mask */
   1587  1.1  christos 	 FALSE),		/* pcrel_offset */
   1588  1.3  christos 
   1589  1.1  christos   /* Like R_PPC_VLE_SDA21 but ignore overflow.  */
   1590  1.1  christos   HOWTO (R_PPC_VLE_SDA21_LO,	/* type */
   1591  1.1  christos 	 0,			/* rightshift */
   1592  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1593  1.1  christos 	 16,			/* bitsize */
   1594  1.1  christos 	 FALSE,			/* pc_relative */
   1595  1.3  christos 	 0,			/* bitpos */
   1596  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1597  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1598  1.1  christos 	 "R_PPC_VLE_SDA21_LO",	/* name */
   1599  1.1  christos 	 FALSE,			/* partial_inplace */
   1600  1.3  christos 	 0,			/* src_mask */
   1601  1.1  christos 	 0xffff,		/* dst_mask */
   1602  1.1  christos 	 FALSE),		/* pcrel_offset */
   1603  1.1  christos 
   1604  1.1  christos   /* The 16 LSBS relative to _SDA_BASE_ in split16a format.  */
   1605  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
   1606  1.1  christos 	 0,			/* rightshift */
   1607  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1608  1.1  christos 	 16,			/* bitsize */
   1609  1.1  christos 	 FALSE,			/* pc_relative */
   1610  1.7  christos 	 0,			/* bitpos */
   1611  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1612  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1613  1.1  christos 	 "R_PPC_VLE_SDAREL_LO16A", /* name */
   1614  1.1  christos 	 FALSE,			/* partial_inplace */
   1615  1.7  christos 	 0,			/* src_mask */
   1616  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1617  1.1  christos 	 FALSE),		/* pcrel_offset */
   1618  1.1  christos 
   1619  1.1  christos   /* The 16 LSBS relative to _SDA_BASE_ in split16d format.  */
   1620  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
   1621  1.1  christos 	 0,			/* rightshift */
   1622  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1623  1.1  christos 	 16,			/* bitsize */
   1624  1.1  christos 	 FALSE,			/* pc_relative */
   1625  1.7  christos 	 0,			/* bitpos */
   1626  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1627  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1628  1.1  christos 	 "R_PPC_VLE_SDAREL_LO16D", /* name */
   1629  1.1  christos 	 FALSE,			/* partial_inplace */
   1630  1.7  christos 	 0,			/* src_mask */
   1631  1.1  christos 	 0x3e007ff,		/* dst_mask */
   1632  1.1  christos 	 FALSE),		/* pcrel_offset */
   1633  1.1  christos 
   1634  1.7  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16a format.  */
   1635  1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */
   1636  1.1  christos 	 16,			/* rightshift */
   1637  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1638  1.1  christos 	 16,			/* bitsize */
   1639  1.1  christos 	 FALSE,			/* pc_relative */
   1640  1.7  christos 	 0,			/* bitpos */
   1641  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1642  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1643  1.1  christos 	 "R_PPC_VLE_SDAREL_HI16A", /* name */
   1644  1.1  christos 	 FALSE,			/* partial_inplace */
   1645  1.7  christos 	 0,			/* src_mask */
   1646  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1647  1.1  christos 	 FALSE),		/* pcrel_offset */
   1648  1.1  christos 
   1649  1.7  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16d format.  */
   1650  1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */
   1651  1.1  christos 	 16,			/* rightshift */
   1652  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1653  1.1  christos 	 16,			/* bitsize */
   1654  1.1  christos 	 FALSE,			/* pc_relative */
   1655  1.7  christos 	 0,			/* bitpos */
   1656  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1657  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1658  1.1  christos 	 "R_PPC_VLE_SDAREL_HI16D", /* name */
   1659  1.1  christos 	 FALSE,			/* partial_inplace */
   1660  1.7  christos 	 0,			/* src_mask */
   1661  1.1  christos 	 0x3e007ff,		/* dst_mask */
   1662  1.1  christos 	 FALSE),		/* pcrel_offset */
   1663  1.1  christos 
   1664  1.7  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16a format.  */
   1665  1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */
   1666  1.1  christos 	 16,			/* rightshift */
   1667  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1668  1.1  christos 	 16,			/* bitsize */
   1669  1.1  christos 	 FALSE,			/* pc_relative */
   1670  1.7  christos 	 0,			/* bitpos */
   1671  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1672  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1673  1.1  christos 	 "R_PPC_VLE_SDAREL_HA16A", /* name */
   1674  1.1  christos 	 FALSE,			/* partial_inplace */
   1675  1.7  christos 	 0,			/* src_mask */
   1676  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1677  1.1  christos 	 FALSE),		/* pcrel_offset */
   1678  1.1  christos 
   1679  1.7  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16d format.  */
   1680  1.3  christos   HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */
   1681  1.1  christos 	 16,			/* rightshift */
   1682  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1683  1.1  christos 	 16,			/* bitsize */
   1684  1.1  christos 	 FALSE,			/* pc_relative */
   1685  1.7  christos 	 0,			/* bitpos */
   1686  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1687  1.7  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1688  1.7  christos 	 "R_PPC_VLE_SDAREL_HA16D", /* name */
   1689  1.7  christos 	 FALSE,			/* partial_inplace */
   1690  1.7  christos 	 0,			/* src_mask */
   1691  1.7  christos 	 0x3e007ff,		/* dst_mask */
   1692  1.7  christos 	 FALSE),		/* pcrel_offset */
   1693  1.7  christos 
   1694  1.7  christos   /* e_li split20 format.  */
   1695  1.7  christos   HOWTO (R_PPC_VLE_ADDR20,	/* type */
   1696  1.7  christos 	 16,			/* rightshift */
   1697  1.7  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1698  1.7  christos 	 20,			/* bitsize */
   1699  1.7  christos 	 FALSE,			/* pc_relative */
   1700  1.7  christos 	 0,			/* bitpos */
   1701  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1702  1.7  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1703  1.1  christos 	 "R_PPC_VLE_ADDR20",	/* name */
   1704  1.1  christos 	 FALSE,			/* partial_inplace */
   1705  1.1  christos 	 0,			/* src_mask */
   1706  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1707  1.1  christos 	 FALSE),		/* pcrel_offset */
   1708  1.1  christos 
   1709  1.1  christos   HOWTO (R_PPC_IRELATIVE,	/* type */
   1710  1.1  christos 	 0,			/* rightshift */
   1711  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1712  1.1  christos 	 32,			/* bitsize */
   1713  1.1  christos 	 FALSE,			/* pc_relative */
   1714  1.3  christos 	 0,			/* bitpos */
   1715  1.7  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1716  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1717  1.1  christos 	 "R_PPC_IRELATIVE",	/* name */
   1718  1.1  christos 	 FALSE,			/* partial_inplace */
   1719  1.1  christos 	 0,			/* src_mask */
   1720  1.1  christos 	 0xffffffff,		/* dst_mask */
   1721  1.1  christos 	 FALSE),		/* pcrel_offset */
   1722  1.1  christos 
   1723  1.1  christos   /* A 16 bit relative relocation.  */
   1724  1.1  christos   HOWTO (R_PPC_REL16,		/* type */
   1725  1.1  christos 	 0,			/* rightshift */
   1726  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1727  1.1  christos 	 16,			/* bitsize */
   1728  1.1  christos 	 TRUE,			/* pc_relative */
   1729  1.3  christos 	 0,			/* bitpos */
   1730  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1731  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1732  1.1  christos 	 "R_PPC_REL16",		/* name */
   1733  1.1  christos 	 FALSE,			/* partial_inplace */
   1734  1.1  christos 	 0,			/* src_mask */
   1735  1.1  christos 	 0xffff,		/* dst_mask */
   1736  1.1  christos 	 TRUE),			/* pcrel_offset */
   1737  1.1  christos 
   1738  1.1  christos   /* A 16 bit relative relocation without overflow.  */
   1739  1.1  christos   HOWTO (R_PPC_REL16_LO,	/* type */
   1740  1.1  christos 	 0,			/* rightshift */
   1741  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1742  1.1  christos 	 16,			/* bitsize */
   1743  1.1  christos 	 TRUE,			/* pc_relative */
   1744  1.1  christos 	 0,			/* bitpos */
   1745  1.1  christos 	 complain_overflow_dont,/* complain_on_overflow */
   1746  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1747  1.1  christos 	 "R_PPC_REL16_LO",	/* name */
   1748  1.1  christos 	 FALSE,			/* partial_inplace */
   1749  1.1  christos 	 0,			/* src_mask */
   1750  1.1  christos 	 0xffff,		/* dst_mask */
   1751  1.1  christos 	 TRUE),			/* pcrel_offset */
   1752  1.1  christos 
   1753  1.1  christos   /* The high order 16 bits of a relative address.  */
   1754  1.1  christos   HOWTO (R_PPC_REL16_HI,	/* type */
   1755  1.1  christos 	 16,			/* rightshift */
   1756  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1757  1.1  christos 	 16,			/* bitsize */
   1758  1.1  christos 	 TRUE,			/* pc_relative */
   1759  1.1  christos 	 0,			/* bitpos */
   1760  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1761  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1762  1.1  christos 	 "R_PPC_REL16_HI",	/* name */
   1763  1.1  christos 	 FALSE,			/* partial_inplace */
   1764  1.1  christos 	 0,			/* src_mask */
   1765  1.1  christos 	 0xffff,		/* dst_mask */
   1766  1.1  christos 	 TRUE),			/* pcrel_offset */
   1767  1.1  christos 
   1768  1.1  christos   /* The high order 16 bits of a relative address, plus 1 if the contents of
   1769  1.1  christos      the low 16 bits, treated as a signed number, is negative.  */
   1770  1.1  christos   HOWTO (R_PPC_REL16_HA,	/* type */
   1771  1.1  christos 	 16,			/* rightshift */
   1772  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1773  1.1  christos 	 16,			/* bitsize */
   1774  1.1  christos 	 TRUE,			/* pc_relative */
   1775  1.1  christos 	 0,			/* bitpos */
   1776  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1777  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1778  1.1  christos 	 "R_PPC_REL16_HA",	/* name */
   1779  1.1  christos 	 FALSE,			/* partial_inplace */
   1780  1.1  christos 	 0,			/* src_mask */
   1781  1.1  christos 	 0xffff,		/* dst_mask */
   1782  1.1  christos 	 TRUE),			/* pcrel_offset */
   1783  1.3  christos 
   1784  1.3  christos   /* Like R_PPC_REL16_HA but for split field in addpcis.  */
   1785  1.3  christos   HOWTO (R_PPC_REL16DX_HA,	/* type */
   1786  1.3  christos 	 16,			/* rightshift */
   1787  1.3  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1788  1.3  christos 	 16,			/* bitsize */
   1789  1.3  christos 	 TRUE,			/* pc_relative */
   1790  1.3  christos 	 0,			/* bitpos */
   1791  1.3  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1792  1.3  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1793  1.3  christos 	 "R_PPC_REL16DX_HA",	/* name */
   1794  1.3  christos 	 FALSE,			/* partial_inplace */
   1795  1.3  christos 	 0,			/* src_mask */
   1796  1.3  christos 	 0x1fffc1,		/* dst_mask */
   1797  1.3  christos 	 TRUE),			/* pcrel_offset */
   1798  1.7  christos 
   1799  1.7  christos   /* A split-field reloc for addpcis, non-relative (gas internal use only).  */
   1800  1.7  christos   HOWTO (R_PPC_16DX_HA,		/* type */
   1801  1.7  christos 	 16,			/* rightshift */
   1802  1.7  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1803  1.7  christos 	 16,			/* bitsize */
   1804  1.7  christos 	 FALSE,			/* pc_relative */
   1805  1.7  christos 	 0,			/* bitpos */
   1806  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1807  1.7  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1808  1.7  christos 	 "R_PPC_16DX_HA",	/* name */
   1809  1.7  christos 	 FALSE,			/* partial_inplace */
   1810  1.7  christos 	 0,			/* src_mask */
   1811  1.7  christos 	 0x1fffc1,		/* dst_mask */
   1812  1.7  christos 	 FALSE),		/* pcrel_offset */
   1813  1.1  christos 
   1814  1.1  christos   /* GNU extension to record C++ vtable hierarchy.  */
   1815  1.1  christos   HOWTO (R_PPC_GNU_VTINHERIT,	/* type */
   1816  1.1  christos 	 0,			/* rightshift */
   1817  1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1818  1.1  christos 	 0,			/* bitsize */
   1819  1.1  christos 	 FALSE,			/* pc_relative */
   1820  1.1  christos 	 0,			/* bitpos */
   1821  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1822  1.1  christos 	 NULL,			/* special_function */
   1823  1.1  christos 	 "R_PPC_GNU_VTINHERIT",	/* name */
   1824  1.1  christos 	 FALSE,			/* partial_inplace */
   1825  1.1  christos 	 0,			/* src_mask */
   1826  1.1  christos 	 0,			/* dst_mask */
   1827  1.1  christos 	 FALSE),		/* pcrel_offset */
   1828  1.1  christos 
   1829  1.1  christos   /* GNU extension to record C++ vtable member usage.  */
   1830  1.1  christos   HOWTO (R_PPC_GNU_VTENTRY,	/* type */
   1831  1.1  christos 	 0,			/* rightshift */
   1832  1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1833  1.1  christos 	 0,			/* bitsize */
   1834  1.1  christos 	 FALSE,			/* pc_relative */
   1835  1.1  christos 	 0,			/* bitpos */
   1836  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1837  1.1  christos 	 NULL,			/* special_function */
   1838  1.1  christos 	 "R_PPC_GNU_VTENTRY",	/* name */
   1839  1.1  christos 	 FALSE,			/* partial_inplace */
   1840  1.1  christos 	 0,			/* src_mask */
   1841  1.1  christos 	 0,			/* dst_mask */
   1842  1.1  christos 	 FALSE),		/* pcrel_offset */
   1843  1.1  christos 
   1844  1.1  christos   /* Phony reloc to handle AIX style TOC entries.  */
   1845  1.1  christos   HOWTO (R_PPC_TOC16,		/* type */
   1846  1.1  christos 	 0,			/* rightshift */
   1847  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1848  1.1  christos 	 16,			/* bitsize */
   1849  1.1  christos 	 FALSE,			/* pc_relative */
   1850  1.1  christos 	 0,			/* bitpos */
   1851  1.7  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1852  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1853  1.1  christos 	 "R_PPC_TOC16",		/* name */
   1854  1.1  christos 	 FALSE,			/* partial_inplace */
   1855  1.1  christos 	 0,			/* src_mask */
   1856  1.1  christos 	 0xffff,		/* dst_mask */
   1857  1.1  christos 	 FALSE),		/* pcrel_offset */
   1858  1.1  christos };
   1859  1.1  christos 
   1860  1.1  christos /* Initialize the ppc_elf_howto_table, so that linear accesses can be done.  */
   1862  1.1  christos 
   1863  1.1  christos static void
   1864  1.1  christos ppc_elf_howto_init (void)
   1865  1.1  christos {
   1866  1.1  christos   unsigned int i, type;
   1867  1.1  christos 
   1868  1.1  christos   for (i = 0;
   1869  1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   1870  1.1  christos        i++)
   1871  1.1  christos     {
   1872  1.1  christos       type = ppc_elf_howto_raw[i].type;
   1873  1.1  christos       if (type >= (sizeof (ppc_elf_howto_table)
   1874  1.1  christos 		   / sizeof (ppc_elf_howto_table[0])))
   1875  1.1  christos 	abort ();
   1876  1.1  christos       ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
   1877  1.1  christos     }
   1878  1.1  christos }
   1879  1.1  christos 
   1880  1.1  christos static reloc_howto_type *
   1881  1.1  christos ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   1882  1.1  christos 			   bfd_reloc_code_real_type code)
   1883  1.1  christos {
   1884  1.1  christos   enum elf_ppc_reloc_type r;
   1885  1.1  christos 
   1886  1.1  christos   /* Initialize howto table if not already done.  */
   1887  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   1888  1.1  christos     ppc_elf_howto_init ();
   1889  1.1  christos 
   1890  1.1  christos   switch (code)
   1891  1.1  christos     {
   1892  1.1  christos     default:
   1893  1.1  christos       return NULL;
   1894  1.1  christos 
   1895  1.1  christos     case BFD_RELOC_NONE:		r = R_PPC_NONE;			break;
   1896  1.1  christos     case BFD_RELOC_32:			r = R_PPC_ADDR32;		break;
   1897  1.1  christos     case BFD_RELOC_PPC_BA26:		r = R_PPC_ADDR24;		break;
   1898  1.1  christos     case BFD_RELOC_PPC64_ADDR16_DS:
   1899  1.1  christos     case BFD_RELOC_16:			r = R_PPC_ADDR16;		break;
   1900  1.1  christos     case BFD_RELOC_PPC64_ADDR16_LO_DS:
   1901  1.1  christos     case BFD_RELOC_LO16:		r = R_PPC_ADDR16_LO;		break;
   1902  1.1  christos     case BFD_RELOC_HI16:		r = R_PPC_ADDR16_HI;		break;
   1903  1.1  christos     case BFD_RELOC_HI16_S:		r = R_PPC_ADDR16_HA;		break;
   1904  1.1  christos     case BFD_RELOC_PPC_BA16:		r = R_PPC_ADDR14;		break;
   1905  1.1  christos     case BFD_RELOC_PPC_BA16_BRTAKEN:	r = R_PPC_ADDR14_BRTAKEN;	break;
   1906  1.1  christos     case BFD_RELOC_PPC_BA16_BRNTAKEN:	r = R_PPC_ADDR14_BRNTAKEN;	break;
   1907  1.1  christos     case BFD_RELOC_PPC_B26:		r = R_PPC_REL24;		break;
   1908  1.1  christos     case BFD_RELOC_PPC_B16:		r = R_PPC_REL14;		break;
   1909  1.1  christos     case BFD_RELOC_PPC_B16_BRTAKEN:	r = R_PPC_REL14_BRTAKEN;	break;
   1910  1.1  christos     case BFD_RELOC_PPC_B16_BRNTAKEN:	r = R_PPC_REL14_BRNTAKEN;	break;
   1911  1.1  christos     case BFD_RELOC_PPC64_GOT16_DS:
   1912  1.1  christos     case BFD_RELOC_16_GOTOFF:		r = R_PPC_GOT16;		break;
   1913  1.1  christos     case BFD_RELOC_PPC64_GOT16_LO_DS:
   1914  1.1  christos     case BFD_RELOC_LO16_GOTOFF:		r = R_PPC_GOT16_LO;		break;
   1915  1.1  christos     case BFD_RELOC_HI16_GOTOFF:		r = R_PPC_GOT16_HI;		break;
   1916  1.1  christos     case BFD_RELOC_HI16_S_GOTOFF:	r = R_PPC_GOT16_HA;		break;
   1917  1.1  christos     case BFD_RELOC_24_PLT_PCREL:	r = R_PPC_PLTREL24;		break;
   1918  1.1  christos     case BFD_RELOC_PPC_COPY:		r = R_PPC_COPY;			break;
   1919  1.1  christos     case BFD_RELOC_PPC_GLOB_DAT:	r = R_PPC_GLOB_DAT;		break;
   1920  1.1  christos     case BFD_RELOC_PPC_LOCAL24PC:	r = R_PPC_LOCAL24PC;		break;
   1921  1.1  christos     case BFD_RELOC_32_PCREL:		r = R_PPC_REL32;		break;
   1922  1.1  christos     case BFD_RELOC_32_PLTOFF:		r = R_PPC_PLT32;		break;
   1923  1.1  christos     case BFD_RELOC_32_PLT_PCREL:	r = R_PPC_PLTREL32;		break;
   1924  1.1  christos     case BFD_RELOC_PPC64_PLT16_LO_DS:
   1925  1.1  christos     case BFD_RELOC_LO16_PLTOFF:		r = R_PPC_PLT16_LO;		break;
   1926  1.1  christos     case BFD_RELOC_HI16_PLTOFF:		r = R_PPC_PLT16_HI;		break;
   1927  1.1  christos     case BFD_RELOC_HI16_S_PLTOFF:	r = R_PPC_PLT16_HA;		break;
   1928  1.1  christos     case BFD_RELOC_GPREL16:		r = R_PPC_SDAREL16;		break;
   1929  1.1  christos     case BFD_RELOC_PPC64_SECTOFF_DS:
   1930  1.1  christos     case BFD_RELOC_16_BASEREL:		r = R_PPC_SECTOFF;		break;
   1931  1.1  christos     case BFD_RELOC_PPC64_SECTOFF_LO_DS:
   1932  1.1  christos     case BFD_RELOC_LO16_BASEREL:	r = R_PPC_SECTOFF_LO;		break;
   1933  1.1  christos     case BFD_RELOC_HI16_BASEREL:	r = R_PPC_SECTOFF_HI;		break;
   1934  1.1  christos     case BFD_RELOC_HI16_S_BASEREL:	r = R_PPC_SECTOFF_HA;		break;
   1935  1.1  christos     case BFD_RELOC_CTOR:		r = R_PPC_ADDR32;		break;
   1936  1.1  christos     case BFD_RELOC_PPC64_TOC16_DS:
   1937  1.1  christos     case BFD_RELOC_PPC_TOC16:		r = R_PPC_TOC16;		break;
   1938  1.1  christos     case BFD_RELOC_PPC_TLS:		r = R_PPC_TLS;			break;
   1939  1.1  christos     case BFD_RELOC_PPC_TLSGD:		r = R_PPC_TLSGD;		break;
   1940  1.1  christos     case BFD_RELOC_PPC_TLSLD:		r = R_PPC_TLSLD;		break;
   1941  1.1  christos     case BFD_RELOC_PPC_DTPMOD:		r = R_PPC_DTPMOD32;		break;
   1942  1.1  christos     case BFD_RELOC_PPC64_TPREL16_DS:
   1943  1.1  christos     case BFD_RELOC_PPC_TPREL16:		r = R_PPC_TPREL16;		break;
   1944  1.1  christos     case BFD_RELOC_PPC64_TPREL16_LO_DS:
   1945  1.1  christos     case BFD_RELOC_PPC_TPREL16_LO:	r = R_PPC_TPREL16_LO;		break;
   1946  1.1  christos     case BFD_RELOC_PPC_TPREL16_HI:	r = R_PPC_TPREL16_HI;		break;
   1947  1.1  christos     case BFD_RELOC_PPC_TPREL16_HA:	r = R_PPC_TPREL16_HA;		break;
   1948  1.1  christos     case BFD_RELOC_PPC_TPREL:		r = R_PPC_TPREL32;		break;
   1949  1.1  christos     case BFD_RELOC_PPC64_DTPREL16_DS:
   1950  1.1  christos     case BFD_RELOC_PPC_DTPREL16:	r = R_PPC_DTPREL16;		break;
   1951  1.1  christos     case BFD_RELOC_PPC64_DTPREL16_LO_DS:
   1952  1.1  christos     case BFD_RELOC_PPC_DTPREL16_LO:	r = R_PPC_DTPREL16_LO;		break;
   1953  1.1  christos     case BFD_RELOC_PPC_DTPREL16_HI:	r = R_PPC_DTPREL16_HI;		break;
   1954  1.1  christos     case BFD_RELOC_PPC_DTPREL16_HA:	r = R_PPC_DTPREL16_HA;		break;
   1955  1.1  christos     case BFD_RELOC_PPC_DTPREL:		r = R_PPC_DTPREL32;		break;
   1956  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16:	r = R_PPC_GOT_TLSGD16;		break;
   1957  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_LO:	r = R_PPC_GOT_TLSGD16_LO;	break;
   1958  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HI:	r = R_PPC_GOT_TLSGD16_HI;	break;
   1959  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HA:	r = R_PPC_GOT_TLSGD16_HA;	break;
   1960  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16:	r = R_PPC_GOT_TLSLD16;		break;
   1961  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_LO:	r = R_PPC_GOT_TLSLD16_LO;	break;
   1962  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HI:	r = R_PPC_GOT_TLSLD16_HI;	break;
   1963  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HA:	r = R_PPC_GOT_TLSLD16_HA;	break;
   1964  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16:	r = R_PPC_GOT_TPREL16;		break;
   1965  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_LO:	r = R_PPC_GOT_TPREL16_LO;	break;
   1966  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HI:	r = R_PPC_GOT_TPREL16_HI;	break;
   1967  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HA:	r = R_PPC_GOT_TPREL16_HA;	break;
   1968  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16:	r = R_PPC_GOT_DTPREL16;		break;
   1969  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_LO:	r = R_PPC_GOT_DTPREL16_LO;	break;
   1970  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HI:	r = R_PPC_GOT_DTPREL16_HI;	break;
   1971  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HA:	r = R_PPC_GOT_DTPREL16_HA;	break;
   1972  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR32:	r = R_PPC_EMB_NADDR32;		break;
   1973  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16:	r = R_PPC_EMB_NADDR16;		break;
   1974  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_LO:	r = R_PPC_EMB_NADDR16_LO;	break;
   1975  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HI:	r = R_PPC_EMB_NADDR16_HI;	break;
   1976  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HA:	r = R_PPC_EMB_NADDR16_HA;	break;
   1977  1.1  christos     case BFD_RELOC_PPC_EMB_SDAI16:	r = R_PPC_EMB_SDAI16;		break;
   1978  1.1  christos     case BFD_RELOC_PPC_EMB_SDA2I16:	r = R_PPC_EMB_SDA2I16;		break;
   1979  1.1  christos     case BFD_RELOC_PPC_EMB_SDA2REL:	r = R_PPC_EMB_SDA2REL;		break;
   1980  1.1  christos     case BFD_RELOC_PPC_EMB_SDA21:	r = R_PPC_EMB_SDA21;		break;
   1981  1.1  christos     case BFD_RELOC_PPC_EMB_MRKREF:	r = R_PPC_EMB_MRKREF;		break;
   1982  1.1  christos     case BFD_RELOC_PPC_EMB_RELSEC16:	r = R_PPC_EMB_RELSEC16;		break;
   1983  1.1  christos     case BFD_RELOC_PPC_EMB_RELST_LO:	r = R_PPC_EMB_RELST_LO;		break;
   1984  1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HI:	r = R_PPC_EMB_RELST_HI;		break;
   1985  1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HA:	r = R_PPC_EMB_RELST_HA;		break;
   1986  1.1  christos     case BFD_RELOC_PPC_EMB_BIT_FLD:	r = R_PPC_EMB_BIT_FLD;		break;
   1987  1.1  christos     case BFD_RELOC_PPC_EMB_RELSDA:	r = R_PPC_EMB_RELSDA;		break;
   1988  1.1  christos     case BFD_RELOC_PPC_VLE_REL8:	r = R_PPC_VLE_REL8;		break;
   1989  1.1  christos     case BFD_RELOC_PPC_VLE_REL15:	r = R_PPC_VLE_REL15;		break;
   1990  1.1  christos     case BFD_RELOC_PPC_VLE_REL24:	r = R_PPC_VLE_REL24;		break;
   1991  1.1  christos     case BFD_RELOC_PPC_VLE_LO16A:	r = R_PPC_VLE_LO16A;		break;
   1992  1.1  christos     case BFD_RELOC_PPC_VLE_LO16D:	r = R_PPC_VLE_LO16D;		break;
   1993  1.1  christos     case BFD_RELOC_PPC_VLE_HI16A:	r = R_PPC_VLE_HI16A;		break;
   1994  1.1  christos     case BFD_RELOC_PPC_VLE_HI16D:	r = R_PPC_VLE_HI16D;		break;
   1995  1.1  christos     case BFD_RELOC_PPC_VLE_HA16A:	r = R_PPC_VLE_HA16A;		break;
   1996  1.1  christos     case BFD_RELOC_PPC_VLE_HA16D:	r = R_PPC_VLE_HA16D;		break;
   1997  1.1  christos     case BFD_RELOC_PPC_VLE_SDA21:	r = R_PPC_VLE_SDA21;		break;
   1998  1.1  christos     case BFD_RELOC_PPC_VLE_SDA21_LO:	r = R_PPC_VLE_SDA21_LO;		break;
   1999  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
   2000  1.1  christos       r = R_PPC_VLE_SDAREL_LO16A;
   2001  1.1  christos       break;
   2002  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
   2003  1.1  christos       r = R_PPC_VLE_SDAREL_LO16D;
   2004  1.1  christos       break;
   2005  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
   2006  1.1  christos       r = R_PPC_VLE_SDAREL_HI16A;
   2007  1.1  christos       break;
   2008  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
   2009  1.1  christos       r = R_PPC_VLE_SDAREL_HI16D;
   2010  1.1  christos       break;
   2011  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
   2012  1.1  christos       r = R_PPC_VLE_SDAREL_HA16A;
   2013  1.1  christos       break;
   2014  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
   2015  1.1  christos       r = R_PPC_VLE_SDAREL_HA16D;
   2016  1.1  christos       break;
   2017  1.1  christos     case BFD_RELOC_16_PCREL:		r = R_PPC_REL16;		break;
   2018  1.1  christos     case BFD_RELOC_LO16_PCREL:		r = R_PPC_REL16_LO;		break;
   2019  1.7  christos     case BFD_RELOC_HI16_PCREL:		r = R_PPC_REL16_HI;		break;
   2020  1.3  christos     case BFD_RELOC_HI16_S_PCREL:	r = R_PPC_REL16_HA;		break;
   2021  1.1  christos     case BFD_RELOC_PPC_16DX_HA:		r = R_PPC_16DX_HA;		break;
   2022  1.1  christos     case BFD_RELOC_PPC_REL16DX_HA:	r = R_PPC_REL16DX_HA;		break;
   2023  1.1  christos     case BFD_RELOC_VTABLE_INHERIT:	r = R_PPC_GNU_VTINHERIT;	break;
   2024  1.1  christos     case BFD_RELOC_VTABLE_ENTRY:	r = R_PPC_GNU_VTENTRY;		break;
   2025  1.1  christos     }
   2026  1.1  christos 
   2027  1.1  christos   return ppc_elf_howto_table[r];
   2028  1.1  christos };
   2029  1.1  christos 
   2030  1.1  christos static reloc_howto_type *
   2031  1.1  christos ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   2032  1.1  christos 			   const char *r_name)
   2033  1.1  christos {
   2034  1.1  christos   unsigned int i;
   2035  1.1  christos 
   2036  1.1  christos   for (i = 0;
   2037  1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   2038  1.1  christos        i++)
   2039  1.1  christos     if (ppc_elf_howto_raw[i].name != NULL
   2040  1.1  christos 	&& strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
   2041  1.1  christos       return &ppc_elf_howto_raw[i];
   2042  1.1  christos 
   2043  1.1  christos   return NULL;
   2044  1.1  christos }
   2045  1.1  christos 
   2046  1.7  christos /* Set the howto pointer for a PowerPC ELF reloc.  */
   2047  1.7  christos 
   2048  1.1  christos static bfd_boolean
   2049  1.1  christos ppc_elf_info_to_howto (bfd *abfd,
   2050  1.1  christos 		       arelent *cache_ptr,
   2051  1.3  christos 		       Elf_Internal_Rela *dst)
   2052  1.3  christos {
   2053  1.1  christos   unsigned int r_type;
   2054  1.1  christos 
   2055  1.1  christos   /* Initialize howto table if not already done.  */
   2056  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   2057  1.3  christos     ppc_elf_howto_init ();
   2058  1.3  christos 
   2059  1.3  christos   r_type = ELF32_R_TYPE (dst->r_info);
   2060  1.7  christos   if (r_type >= R_PPC_max)
   2061  1.7  christos     {
   2062  1.7  christos       /* xgettext:c-format */
   2063  1.3  christos       _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
   2064  1.7  christos 			  abfd, r_type);
   2065  1.3  christos       bfd_set_error (bfd_error_bad_value);
   2066  1.7  christos       return FALSE;
   2067  1.3  christos     }
   2068  1.1  christos 
   2069  1.1  christos   cache_ptr->howto = ppc_elf_howto_table[r_type];
   2070  1.1  christos 
   2071  1.7  christos   /* Just because the above assert didn't trigger doesn't mean that
   2072  1.1  christos      ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation.  */
   2073  1.7  christos   if (cache_ptr->howto == NULL)
   2074  1.7  christos     {
   2075  1.7  christos       /* xgettext:c-format */
   2076  1.1  christos       _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
   2077  1.1  christos 			  abfd, r_type);
   2078  1.7  christos       bfd_set_error (bfd_error_bad_value);
   2079  1.1  christos 
   2080  1.7  christos       return FALSE;
   2081  1.7  christos     }
   2082  1.1  christos 
   2083  1.1  christos   return TRUE;
   2084  1.1  christos }
   2085  1.1  christos 
   2086  1.1  christos /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs.  */
   2087  1.7  christos 
   2088  1.1  christos static bfd_reloc_status_type
   2089  1.1  christos ppc_elf_addr16_ha_reloc (bfd *abfd,
   2090  1.7  christos 			 arelent *reloc_entry,
   2091  1.1  christos 			 asymbol *symbol,
   2092  1.1  christos 			 void *data,
   2093  1.1  christos 			 asection *input_section,
   2094  1.1  christos 			 bfd *output_bfd,
   2095  1.3  christos 			 char **error_message ATTRIBUTE_UNUSED)
   2096  1.3  christos {
   2097  1.3  christos   enum elf_ppc_reloc_type r_type;
   2098  1.3  christos   long insn;
   2099  1.1  christos   bfd_size_type octets;
   2100  1.1  christos   bfd_vma value;
   2101  1.1  christos 
   2102  1.1  christos   if (output_bfd != NULL)
   2103  1.1  christos     {
   2104  1.1  christos       reloc_entry->address += input_section->output_offset;
   2105  1.1  christos       return bfd_reloc_ok;
   2106  1.3  christos     }
   2107  1.3  christos 
   2108  1.3  christos   reloc_entry->addend += 0x8000;
   2109  1.3  christos   r_type = reloc_entry->howto->type;
   2110  1.3  christos   if (r_type != R_PPC_REL16DX_HA)
   2111  1.3  christos     return bfd_reloc_continue;
   2112  1.3  christos 
   2113  1.3  christos   value = 0;
   2114  1.3  christos   if (!bfd_is_com_section (symbol->section))
   2115  1.3  christos     value = symbol->value;
   2116  1.3  christos   value += (reloc_entry->addend
   2117  1.3  christos 	    + symbol->section->output_offset
   2118  1.3  christos 	    + symbol->section->output_section->vma);
   2119  1.3  christos   value -= (reloc_entry->address
   2120  1.3  christos 	    + input_section->output_offset
   2121  1.3  christos 	    + input_section->output_section->vma);
   2122  1.3  christos   value >>= 16;
   2123  1.3  christos 
   2124  1.3  christos   octets = reloc_entry->address * bfd_octets_per_byte (abfd);
   2125  1.3  christos   insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
   2126  1.3  christos   insn &= ~0x1fffc1;
   2127  1.3  christos   insn |= (value & 0xffc1) | ((value & 0x3e) << 15);
   2128  1.1  christos   bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
   2129  1.1  christos   return bfd_reloc_ok;
   2130  1.1  christos }
   2131  1.1  christos 
   2132  1.1  christos static bfd_reloc_status_type
   2133  1.1  christos ppc_elf_unhandled_reloc (bfd *abfd,
   2134  1.1  christos 			 arelent *reloc_entry,
   2135  1.1  christos 			 asymbol *symbol,
   2136  1.1  christos 			 void *data,
   2137  1.1  christos 			 asection *input_section,
   2138  1.1  christos 			 bfd *output_bfd,
   2139  1.1  christos 			 char **error_message)
   2140  1.1  christos {
   2141  1.1  christos   /* If this is a relocatable link (output_bfd test tells us), just
   2142  1.1  christos      call the generic function.  Any adjustment will be done at final
   2143  1.1  christos      link time.  */
   2144  1.1  christos   if (output_bfd != NULL)
   2145  1.1  christos     return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
   2146  1.1  christos 				  input_section, output_bfd, error_message);
   2147  1.1  christos 
   2148  1.1  christos   if (error_message != NULL)
   2149  1.1  christos     {
   2150  1.1  christos       static char buf[60];
   2151  1.1  christos       sprintf (buf, _("generic linker can't handle %s"),
   2152  1.1  christos 	       reloc_entry->howto->name);
   2153  1.1  christos       *error_message = buf;
   2154  1.1  christos     }
   2155  1.1  christos   return bfd_reloc_dangerous;
   2156  1.1  christos }
   2157  1.1  christos 
   2158  1.1  christos /* Sections created by the linker.  */
   2160  1.1  christos 
   2161  1.1  christos typedef struct elf_linker_section
   2162  1.1  christos {
   2163  1.1  christos   /* Pointer to the bfd section.  */
   2164  1.1  christos   asection *section;
   2165  1.1  christos   /* Section name.  */
   2166  1.1  christos   const char *name;
   2167  1.1  christos   /* Associated bss section name.  */
   2168  1.1  christos   const char *bss_name;
   2169  1.1  christos   /* Associated symbol name.  */
   2170  1.1  christos   const char *sym_name;
   2171  1.1  christos   /* Associated symbol.  */
   2172  1.1  christos   struct elf_link_hash_entry *sym;
   2173  1.1  christos } elf_linker_section_t;
   2174  1.1  christos 
   2175  1.1  christos /* Linked list of allocated pointer entries.  This hangs off of the
   2176  1.1  christos    symbol lists, and provides allows us to return different pointers,
   2177  1.1  christos    based on different addend's.  */
   2178  1.1  christos 
   2179  1.1  christos typedef struct elf_linker_section_pointers
   2180  1.1  christos {
   2181  1.1  christos   /* next allocated pointer for this symbol */
   2182  1.1  christos   struct elf_linker_section_pointers *next;
   2183  1.1  christos   /* offset of pointer from beginning of section */
   2184  1.1  christos   bfd_vma offset;
   2185  1.1  christos   /* addend used */
   2186  1.1  christos   bfd_vma addend;
   2187  1.1  christos   /* which linker section this is */
   2188  1.1  christos   elf_linker_section_t *lsect;
   2189  1.1  christos } elf_linker_section_pointers_t;
   2190  1.1  christos 
   2191  1.1  christos struct ppc_elf_obj_tdata
   2192  1.1  christos {
   2193  1.1  christos   struct elf_obj_tdata elf;
   2194  1.1  christos 
   2195  1.1  christos   /* A mapping from local symbols to offsets into the various linker
   2196  1.1  christos      sections added.  This is index by the symbol index.  */
   2197  1.1  christos   elf_linker_section_pointers_t **linker_section_pointers;
   2198  1.1  christos 
   2199  1.1  christos   /* Flags used to auto-detect plt type.  */
   2200  1.1  christos   unsigned int makes_plt_call : 1;
   2201  1.1  christos   unsigned int has_rel16 : 1;
   2202  1.1  christos };
   2203  1.1  christos 
   2204  1.1  christos #define ppc_elf_tdata(bfd) \
   2205  1.1  christos   ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
   2206  1.1  christos 
   2207  1.1  christos #define elf_local_ptr_offsets(bfd) \
   2208  1.1  christos   (ppc_elf_tdata (bfd)->linker_section_pointers)
   2209  1.1  christos 
   2210  1.1  christos #define is_ppc_elf(bfd) \
   2211  1.1  christos   (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
   2212  1.1  christos    && elf_object_id (bfd) == PPC32_ELF_DATA)
   2213  1.1  christos 
   2214  1.1  christos /* Override the generic function because we store some extras.  */
   2215  1.1  christos 
   2216  1.1  christos static bfd_boolean
   2217  1.1  christos ppc_elf_mkobject (bfd *abfd)
   2218  1.1  christos {
   2219  1.1  christos   return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
   2220  1.6  christos 				  PPC32_ELF_DATA);
   2221  1.6  christos }
   2222  1.6  christos 
   2223  1.6  christos /* When defaulting arch/mach, decode apuinfo to find a better match.  */
   2224  1.6  christos 
   2225  1.6  christos bfd_boolean
   2226  1.6  christos _bfd_elf_ppc_set_arch (bfd *abfd)
   2227  1.6  christos {
   2228  1.6  christos   unsigned long mach = 0;
   2229  1.6  christos   asection *s;
   2230  1.6  christos   unsigned char *contents;
   2231  1.6  christos 
   2232  1.6  christos   if (abfd->arch_info->bits_per_word == 32
   2233  1.6  christos       && bfd_big_endian (abfd))
   2234  1.6  christos     {
   2235  1.6  christos 
   2236  1.6  christos       for (s = abfd->sections; s != NULL; s = s->next)
   2237  1.6  christos 	if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0)
   2238  1.6  christos 	  break;
   2239  1.6  christos       if (s != NULL)
   2240  1.6  christos 	mach = bfd_mach_ppc_vle;
   2241  1.6  christos     }
   2242  1.6  christos 
   2243  1.6  christos   if (mach == 0)
   2244  1.6  christos     {
   2245  1.6  christos       s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2246  1.6  christos       if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents))
   2247  1.6  christos 	{
   2248  1.6  christos 	  unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4);
   2249  1.6  christos 	  unsigned int i;
   2250  1.6  christos 
   2251  1.6  christos 	  for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4)
   2252  1.6  christos 	    {
   2253  1.6  christos 	      unsigned int val = bfd_get_32 (abfd, contents + i);
   2254  1.6  christos 	      switch (val >> 16)
   2255  1.6  christos 		{
   2256  1.6  christos 		case PPC_APUINFO_PMR:
   2257  1.6  christos 		case PPC_APUINFO_RFMCI:
   2258  1.6  christos 		  if (mach == 0)
   2259  1.6  christos 		    mach = bfd_mach_ppc_titan;
   2260  1.6  christos 		  break;
   2261  1.6  christos 
   2262  1.6  christos 		case PPC_APUINFO_ISEL:
   2263  1.6  christos 		case PPC_APUINFO_CACHELCK:
   2264  1.6  christos 		  if (mach == bfd_mach_ppc_titan)
   2265  1.6  christos 		    mach = bfd_mach_ppc_e500mc;
   2266  1.6  christos 		  break;
   2267  1.6  christos 
   2268  1.6  christos 		case PPC_APUINFO_SPE:
   2269  1.6  christos 		case PPC_APUINFO_EFS:
   2270  1.7  christos 		case PPC_APUINFO_BRLOCK:
   2271  1.6  christos 		  if (mach != bfd_mach_ppc_vle)
   2272  1.6  christos 		    mach = bfd_mach_ppc_e500;
   2273  1.6  christos 		  break;
   2274  1.6  christos 
   2275  1.6  christos 		case PPC_APUINFO_VLE:
   2276  1.6  christos 		  mach = bfd_mach_ppc_vle;
   2277  1.6  christos 		  break;
   2278  1.6  christos 
   2279  1.6  christos 		default:
   2280  1.6  christos 		  mach = -1ul;
   2281  1.6  christos 		}
   2282  1.6  christos 	    }
   2283  1.6  christos 	  free (contents);
   2284  1.6  christos 	}
   2285  1.6  christos     }
   2286  1.6  christos 
   2287  1.6  christos   if (mach != 0 && mach != -1ul)
   2288  1.6  christos     {
   2289  1.6  christos       const bfd_arch_info_type *arch;
   2290  1.6  christos 
   2291  1.6  christos       for (arch = abfd->arch_info->next; arch; arch = arch->next)
   2292  1.6  christos 	if (arch->mach == mach)
   2293  1.6  christos 	  {
   2294  1.6  christos 	    abfd->arch_info = arch;
   2295  1.6  christos 	    break;
   2296  1.6  christos 	  }
   2297  1.6  christos     }
   2298  1.1  christos   return TRUE;
   2299  1.6  christos }
   2300  1.1  christos 
   2301  1.1  christos /* Fix bad default arch selected for a 32 bit input bfd when the
   2302  1.1  christos    default is 64 bit.  Also select arch based on apuinfo.  */
   2303  1.1  christos 
   2304  1.6  christos static bfd_boolean
   2305  1.6  christos ppc_elf_object_p (bfd *abfd)
   2306  1.6  christos {
   2307  1.6  christos   if (!abfd->arch_info->the_default)
   2308  1.1  christos     return TRUE;
   2309  1.1  christos 
   2310  1.1  christos   if (abfd->arch_info->bits_per_word == 64)
   2311  1.1  christos     {
   2312  1.1  christos       Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
   2313  1.1  christos 
   2314  1.1  christos       if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
   2315  1.1  christos 	{
   2316  1.1  christos 	  /* Relies on arch after 64 bit default being 32 bit default.  */
   2317  1.1  christos 	  abfd->arch_info = abfd->arch_info->next;
   2318  1.6  christos 	  BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
   2319  1.1  christos 	}
   2320  1.1  christos     }
   2321  1.1  christos   return _bfd_elf_ppc_set_arch (abfd);
   2322  1.1  christos }
   2323  1.1  christos 
   2324  1.1  christos /* Function to set whether a module needs the -mrelocatable bit set.  */
   2325  1.1  christos 
   2326  1.1  christos static bfd_boolean
   2327  1.1  christos ppc_elf_set_private_flags (bfd *abfd, flagword flags)
   2328  1.1  christos {
   2329  1.1  christos   BFD_ASSERT (!elf_flags_init (abfd)
   2330  1.1  christos 	      || elf_elfheader (abfd)->e_flags == flags);
   2331  1.1  christos 
   2332  1.1  christos   elf_elfheader (abfd)->e_flags = flags;
   2333  1.1  christos   elf_flags_init (abfd) = TRUE;
   2334  1.1  christos   return TRUE;
   2335  1.1  christos }
   2336  1.1  christos 
   2337  1.1  christos /* Support for core dump NOTE sections.  */
   2338  1.1  christos 
   2339  1.1  christos static bfd_boolean
   2340  1.1  christos ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
   2341  1.1  christos {
   2342  1.1  christos   int offset;
   2343  1.1  christos   unsigned int size;
   2344  1.1  christos 
   2345  1.1  christos   switch (note->descsz)
   2346  1.1  christos     {
   2347  1.1  christos     default:
   2348  1.1  christos       return FALSE;
   2349  1.3  christos 
   2350  1.1  christos     case 268:		/* Linux/PPC.  */
   2351  1.1  christos       /* pr_cursig */
   2352  1.3  christos       elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
   2353  1.1  christos 
   2354  1.1  christos       /* pr_pid */
   2355  1.1  christos       elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
   2356  1.1  christos 
   2357  1.1  christos       /* pr_reg */
   2358  1.1  christos       offset = 72;
   2359  1.1  christos       size = 192;
   2360  1.1  christos 
   2361  1.1  christos       break;
   2362  1.1  christos     }
   2363  1.1  christos 
   2364  1.1  christos   /* Make a ".reg/999" section.  */
   2365  1.1  christos   return _bfd_elfcore_make_pseudosection (abfd, ".reg",
   2366  1.1  christos 					  size, note->descpos + offset);
   2367  1.1  christos }
   2368  1.1  christos 
   2369  1.1  christos static bfd_boolean
   2370  1.1  christos ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
   2371  1.1  christos {
   2372  1.1  christos   switch (note->descsz)
   2373  1.1  christos     {
   2374  1.1  christos     default:
   2375  1.3  christos       return FALSE;
   2376  1.1  christos 
   2377  1.3  christos     case 128:		/* Linux/PPC elf_prpsinfo.  */
   2378  1.1  christos       elf_tdata (abfd)->core->pid
   2379  1.3  christos 	= bfd_get_32 (abfd, note->descdata + 16);
   2380  1.1  christos       elf_tdata (abfd)->core->program
   2381  1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
   2382  1.1  christos       elf_tdata (abfd)->core->command
   2383  1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
   2384  1.1  christos     }
   2385  1.1  christos 
   2386  1.1  christos   /* Note that for some reason, a spurious space is tacked
   2387  1.1  christos      onto the end of the args in some (at least one anyway)
   2388  1.3  christos      implementations, so strip it off if it exists.  */
   2389  1.1  christos 
   2390  1.1  christos   {
   2391  1.1  christos     char *command = elf_tdata (abfd)->core->command;
   2392  1.1  christos     int n = strlen (command);
   2393  1.1  christos 
   2394  1.1  christos     if (0 < n && command[n - 1] == ' ')
   2395  1.1  christos       command[n - 1] = '\0';
   2396  1.1  christos   }
   2397  1.1  christos 
   2398  1.1  christos   return TRUE;
   2399  1.1  christos }
   2400  1.1  christos 
   2401  1.1  christos static char *
   2402  1.1  christos ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
   2403  1.1  christos {
   2404  1.1  christos   switch (note_type)
   2405  1.1  christos     {
   2406  1.1  christos     default:
   2407  1.1  christos       return NULL;
   2408  1.7  christos 
   2409  1.1  christos     case NT_PRPSINFO:
   2410  1.1  christos       {
   2411  1.1  christos 	char data[128] ATTRIBUTE_NONSTRING;
   2412  1.1  christos 	va_list ap;
   2413  1.1  christos 
   2414  1.7  christos 	va_start (ap, note_type);
   2415  1.7  christos 	memset (data, 0, sizeof (data));
   2416  1.7  christos 	strncpy (data + 32, va_arg (ap, const char *), 16);
   2417  1.7  christos #if GCC_VERSION == 8001
   2418  1.7  christos 	DIAGNOSTIC_PUSH;
   2419  1.7  christos 	/* GCC 8.1 warns about 80 equals destination size with
   2420  1.7  christos 	   -Wstringop-truncation:
   2421  1.7  christos 	   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85643
   2422  1.1  christos 	 */
   2423  1.7  christos 	DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION;
   2424  1.7  christos #endif
   2425  1.7  christos 	strncpy (data + 48, va_arg (ap, const char *), 80);
   2426  1.1  christos #if GCC_VERSION == 8001
   2427  1.1  christos 	DIAGNOSTIC_POP;
   2428  1.1  christos #endif
   2429  1.1  christos 	va_end (ap);
   2430  1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2431  1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2432  1.1  christos       }
   2433  1.1  christos 
   2434  1.1  christos     case NT_PRSTATUS:
   2435  1.1  christos       {
   2436  1.1  christos 	char data[268];
   2437  1.1  christos 	va_list ap;
   2438  1.1  christos 	long pid;
   2439  1.1  christos 	int cursig;
   2440  1.1  christos 	const void *greg;
   2441  1.1  christos 
   2442  1.1  christos 	va_start (ap, note_type);
   2443  1.1  christos 	memset (data, 0, 72);
   2444  1.1  christos 	pid = va_arg (ap, long);
   2445  1.1  christos 	bfd_put_32 (abfd, pid, data + 24);
   2446  1.1  christos 	cursig = va_arg (ap, int);
   2447  1.1  christos 	bfd_put_16 (abfd, cursig, data + 12);
   2448  1.1  christos 	greg = va_arg (ap, const void *);
   2449  1.1  christos 	memcpy (data + 72, greg, 192);
   2450  1.1  christos 	memset (data + 264, 0, 4);
   2451  1.1  christos 	va_end (ap);
   2452  1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2453  1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2454  1.1  christos       }
   2455  1.1  christos     }
   2456  1.3  christos }
   2457  1.1  christos 
   2458  1.1  christos static flagword
   2459  1.1  christos ppc_elf_lookup_section_flags (char *flag_name)
   2460  1.1  christos {
   2461  1.1  christos 
   2462  1.1  christos   if (!strcmp (flag_name, "SHF_PPC_VLE"))
   2463  1.1  christos     return SHF_PPC_VLE;
   2464  1.1  christos 
   2465  1.1  christos   return 0;
   2466  1.1  christos }
   2467  1.1  christos 
   2468  1.1  christos /* Return address for Ith PLT stub in section PLT, for relocation REL
   2469  1.1  christos    or (bfd_vma) -1 if it should not be included.  */
   2470  1.1  christos 
   2471  1.1  christos static bfd_vma
   2472  1.1  christos ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
   2473  1.1  christos 		     const asection *plt ATTRIBUTE_UNUSED,
   2474  1.1  christos 		     const arelent *rel)
   2475  1.1  christos {
   2476  1.1  christos   return rel->address;
   2477  1.1  christos }
   2478  1.1  christos 
   2479  1.1  christos /* Handle a PowerPC specific section when reading an object file.  This
   2480  1.1  christos    is called when bfd_section_from_shdr finds a section with an unknown
   2481  1.1  christos    type.  */
   2482  1.1  christos 
   2483  1.1  christos static bfd_boolean
   2484  1.1  christos ppc_elf_section_from_shdr (bfd *abfd,
   2485  1.1  christos 			   Elf_Internal_Shdr *hdr,
   2486  1.1  christos 			   const char *name,
   2487  1.1  christos 			   int shindex)
   2488  1.1  christos {
   2489  1.1  christos   asection *newsect;
   2490  1.1  christos   flagword flags;
   2491  1.1  christos 
   2492  1.1  christos   if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
   2493  1.1  christos     return FALSE;
   2494  1.1  christos 
   2495  1.1  christos   newsect = hdr->bfd_section;
   2496  1.1  christos   flags = bfd_get_section_flags (abfd, newsect);
   2497  1.1  christos   if (hdr->sh_flags & SHF_EXCLUDE)
   2498  1.1  christos     flags |= SEC_EXCLUDE;
   2499  1.1  christos 
   2500  1.1  christos   if (hdr->sh_type == SHT_ORDERED)
   2501  1.1  christos     flags |= SEC_SORT_ENTRIES;
   2502  1.1  christos 
   2503  1.1  christos   bfd_set_section_flags (abfd, newsect, flags);
   2504  1.1  christos   return TRUE;
   2505  1.1  christos }
   2506  1.1  christos 
   2507  1.1  christos /* Set up any other section flags and such that may be necessary.  */
   2508  1.1  christos 
   2509  1.1  christos static bfd_boolean
   2510  1.1  christos ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
   2511  1.1  christos 		       Elf_Internal_Shdr *shdr,
   2512  1.1  christos 		       asection *asect)
   2513  1.1  christos {
   2514  1.1  christos   if ((asect->flags & SEC_SORT_ENTRIES) != 0)
   2515  1.1  christos     shdr->sh_type = SHT_ORDERED;
   2516  1.1  christos 
   2517  1.1  christos   return TRUE;
   2518  1.1  christos }
   2519  1.1  christos 
   2520  1.1  christos /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
   2521  1.1  christos    need to bump up the number of section headers.  */
   2522  1.1  christos 
   2523  1.1  christos static int
   2524  1.1  christos ppc_elf_additional_program_headers (bfd *abfd,
   2525  1.1  christos 				    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2526  1.1  christos {
   2527  1.1  christos   asection *s;
   2528  1.1  christos   int ret = 0;
   2529  1.1  christos 
   2530  1.1  christos   s = bfd_get_section_by_name (abfd, ".sbss2");
   2531  1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2532  1.1  christos     ++ret;
   2533  1.1  christos 
   2534  1.1  christos   s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
   2535  1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2536  1.1  christos     ++ret;
   2537  1.1  christos 
   2538  1.3  christos   return ret;
   2539  1.1  christos }
   2540  1.1  christos 
   2541  1.1  christos /* Modify the segment map for VLE executables.  */
   2542  1.1  christos 
   2543  1.1  christos bfd_boolean
   2544  1.7  christos ppc_elf_modify_segment_map (bfd *abfd,
   2545  1.1  christos 			    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2546  1.1  christos {
   2547  1.1  christos   struct elf_segment_map *m;
   2548  1.1  christos 
   2549  1.1  christos   /* At this point in the link, output sections have already been sorted by
   2550  1.1  christos      LMA and assigned to segments.  All that is left to do is to ensure
   2551  1.1  christos      there is no mixing of VLE & non-VLE sections in a text segment.
   2552  1.3  christos      If we find that case, we split the segment.
   2553  1.1  christos      We maintain the original output section order.  */
   2554  1.7  christos 
   2555  1.7  christos   for (m = elf_seg_map (abfd); m != NULL; m = m->next)
   2556  1.7  christos     {
   2557  1.7  christos       struct elf_segment_map *n;
   2558  1.7  christos       bfd_size_type amt;
   2559  1.7  christos       unsigned int j, k;
   2560  1.1  christos       unsigned int p_flags;
   2561  1.1  christos 
   2562  1.7  christos       if (m->p_type != PT_LOAD || m->count == 0)
   2563  1.1  christos 	continue;
   2564  1.7  christos 
   2565  1.7  christos       for (p_flags = PF_R, j = 0; j != m->count; ++j)
   2566  1.7  christos 	{
   2567  1.7  christos 	  if ((m->sections[j]->flags & SEC_READONLY) == 0)
   2568  1.7  christos 	    p_flags |= PF_W;
   2569  1.7  christos 	  if ((m->sections[j]->flags & SEC_CODE) != 0)
   2570  1.7  christos 	    {
   2571  1.7  christos 	      p_flags |= PF_X;
   2572  1.7  christos 	      if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
   2573  1.7  christos 		p_flags |= PF_PPC_VLE;
   2574  1.7  christos 	      break;
   2575  1.7  christos 	    }
   2576  1.7  christos 	}
   2577  1.7  christos       if (j != m->count)
   2578  1.1  christos 	while (++j != m->count)
   2579  1.7  christos 	  {
   2580  1.7  christos 	    unsigned int p_flags1 = PF_R;
   2581  1.7  christos 
   2582  1.7  christos 	    if ((m->sections[j]->flags & SEC_READONLY) == 0)
   2583  1.7  christos 	      p_flags1 |= PF_W;
   2584  1.7  christos 	    if ((m->sections[j]->flags & SEC_CODE) != 0)
   2585  1.7  christos 	      {
   2586  1.7  christos 		p_flags1 |= PF_X;
   2587  1.7  christos 		if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0)
   2588  1.7  christos 		  p_flags1 |= PF_PPC_VLE;
   2589  1.7  christos 		if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0)
   2590  1.7  christos 		  break;
   2591  1.7  christos 	      }
   2592  1.7  christos 	    p_flags |= p_flags1;
   2593  1.7  christos 	  }
   2594  1.7  christos       /* If we're splitting a segment which originally contained rw
   2595  1.7  christos 	 sections then those sections might now only be in one of the
   2596  1.7  christos 	 two parts.  So always set p_flags if splitting, even if we
   2597  1.7  christos 	 are being called for objcopy with p_flags_valid set.  */
   2598  1.7  christos       if (j != m->count || !m->p_flags_valid)
   2599  1.7  christos 	{
   2600  1.7  christos 	  m->p_flags_valid = 1;
   2601  1.1  christos 	  m->p_flags = p_flags;
   2602  1.1  christos 	}
   2603  1.7  christos       if (j == m->count)
   2604  1.1  christos 	continue;
   2605  1.1  christos 
   2606  1.1  christos       /* Sections 0..j-1 stay in this (current) segment,
   2607  1.1  christos 	 the remainder are put in a new segment.
   2608  1.1  christos 	 The scan resumes with the new segment.  */
   2609  1.1  christos 
   2610  1.1  christos       amt = sizeof (struct elf_segment_map);
   2611  1.7  christos       amt += (m->count - j - 1) * sizeof (asection *);
   2612  1.1  christos       n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
   2613  1.1  christos       if (n == NULL)
   2614  1.1  christos 	return FALSE;
   2615  1.1  christos 
   2616  1.7  christos       n->p_type = PT_LOAD;
   2617  1.7  christos       n->count = m->count - j;
   2618  1.7  christos       for (k = 0; k < n->count; ++k)
   2619  1.1  christos 	n->sections[k] = m->sections[j + k];
   2620  1.1  christos       m->count = j;
   2621  1.1  christos       m->p_size_valid = 0;
   2622  1.1  christos       n->next = m->next;
   2623  1.1  christos       m->next = n;
   2624  1.1  christos     }
   2625  1.1  christos 
   2626  1.1  christos   return TRUE;
   2627  1.1  christos }
   2628  1.1  christos 
   2629  1.1  christos /* Add extra PPC sections -- Note, for now, make .sbss2 and
   2630  1.1  christos    .PPC.EMB.sbss0 a normal section, and not a bss section so
   2631  1.1  christos    that the linker doesn't crater when trying to make more than
   2632  1.1  christos    2 sections.  */
   2633  1.6  christos 
   2634  1.6  christos static const struct bfd_elf_special_section ppc_elf_special_sections[] =
   2635  1.6  christos {
   2636  1.6  christos   { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR },
   2637  1.6  christos   { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
   2638  1.6  christos   { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC },
   2639  1.6  christos   { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
   2640  1.6  christos   { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC },
   2641  1.6  christos   { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC },
   2642  1.6  christos   { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 },
   2643  1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC },
   2644  1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC },
   2645  1.1  christos   { NULL, 0, 0, 0, 0 }
   2646  1.1  christos };
   2647  1.7  christos 
   2648  1.1  christos /* This is what we want for new plt/got.  */
   2649  1.1  christos static struct bfd_elf_special_section ppc_alt_plt =
   2650  1.7  christos   { STRING_COMMA_LEN (".plt"),		   0, SHT_PROGBITS, SHF_ALLOC };
   2651  1.1  christos 
   2652  1.1  christos static const struct bfd_elf_special_section *
   2653  1.1  christos ppc_elf_get_sec_type_attr (bfd *abfd, asection *sec)
   2654  1.1  christos {
   2655  1.1  christos   const struct bfd_elf_special_section *ssect;
   2656  1.1  christos 
   2657  1.1  christos   /* See if this is one of the special sections.  */
   2658  1.1  christos   if (sec->name == NULL)
   2659  1.1  christos     return NULL;
   2660  1.1  christos 
   2661  1.1  christos   ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
   2662  1.1  christos 					sec->use_rela_p);
   2663  1.1  christos   if (ssect != NULL)
   2664  1.1  christos     {
   2665  1.1  christos       if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
   2666  1.1  christos 	ssect = &ppc_alt_plt;
   2667  1.1  christos       return ssect;
   2668  1.1  christos     }
   2669  1.1  christos 
   2670  1.1  christos   return _bfd_elf_get_sec_type_attr (abfd, sec);
   2671  1.1  christos }
   2672  1.1  christos 
   2673  1.1  christos /* Very simple linked list structure for recording apuinfo values.  */
   2675  1.1  christos typedef struct apuinfo_list
   2676  1.1  christos {
   2677  1.1  christos   struct apuinfo_list *next;
   2678  1.1  christos   unsigned long value;
   2679  1.1  christos }
   2680  1.1  christos apuinfo_list;
   2681  1.1  christos 
   2682  1.1  christos static apuinfo_list *head;
   2683  1.1  christos static bfd_boolean apuinfo_set;
   2684  1.1  christos 
   2685  1.1  christos static void
   2686  1.1  christos apuinfo_list_init (void)
   2687  1.1  christos {
   2688  1.1  christos   head = NULL;
   2689  1.1  christos   apuinfo_set = FALSE;
   2690  1.1  christos }
   2691  1.1  christos 
   2692  1.1  christos static void
   2693  1.1  christos apuinfo_list_add (unsigned long value)
   2694  1.1  christos {
   2695  1.1  christos   apuinfo_list *entry = head;
   2696  1.1  christos 
   2697  1.1  christos   while (entry != NULL)
   2698  1.1  christos     {
   2699  1.1  christos       if (entry->value == value)
   2700  1.1  christos 	return;
   2701  1.1  christos       entry = entry->next;
   2702  1.1  christos     }
   2703  1.1  christos 
   2704  1.1  christos   entry = bfd_malloc (sizeof (* entry));
   2705  1.1  christos   if (entry == NULL)
   2706  1.1  christos     return;
   2707  1.1  christos 
   2708  1.1  christos   entry->value = value;
   2709  1.1  christos   entry->next  = head;
   2710  1.1  christos   head = entry;
   2711  1.1  christos }
   2712  1.1  christos 
   2713  1.1  christos static unsigned
   2714  1.1  christos apuinfo_list_length (void)
   2715  1.1  christos {
   2716  1.1  christos   apuinfo_list *entry;
   2717  1.1  christos   unsigned long count;
   2718  1.1  christos 
   2719  1.1  christos   for (entry = head, count = 0;
   2720  1.1  christos        entry;
   2721  1.1  christos        entry = entry->next)
   2722  1.1  christos     ++ count;
   2723  1.1  christos 
   2724  1.1  christos   return count;
   2725  1.1  christos }
   2726  1.1  christos 
   2727  1.1  christos static inline unsigned long
   2728  1.1  christos apuinfo_list_element (unsigned long number)
   2729  1.1  christos {
   2730  1.1  christos   apuinfo_list * entry;
   2731  1.1  christos 
   2732  1.1  christos   for (entry = head;
   2733  1.1  christos        entry && number --;
   2734  1.1  christos        entry = entry->next)
   2735  1.1  christos     ;
   2736  1.1  christos 
   2737  1.1  christos   return entry ? entry->value : 0;
   2738  1.1  christos }
   2739  1.1  christos 
   2740  1.1  christos static void
   2741  1.1  christos apuinfo_list_finish (void)
   2742  1.1  christos {
   2743  1.1  christos   apuinfo_list *entry;
   2744  1.1  christos 
   2745  1.1  christos   for (entry = head; entry;)
   2746  1.1  christos     {
   2747  1.1  christos       apuinfo_list *next = entry->next;
   2748  1.1  christos       free (entry);
   2749  1.1  christos       entry = next;
   2750  1.1  christos     }
   2751  1.1  christos 
   2752  1.1  christos   head = NULL;
   2753  1.1  christos }
   2754  1.1  christos 
   2755  1.1  christos /* Scan the input BFDs and create a linked list of
   2756  1.1  christos    the APUinfo values that will need to be emitted.  */
   2757  1.1  christos 
   2758  1.1  christos static void
   2759  1.1  christos ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
   2760  1.1  christos {
   2761  1.1  christos   bfd *ibfd;
   2762  1.1  christos   asection *asec;
   2763  1.1  christos   char *buffer = NULL;
   2764  1.1  christos   bfd_size_type largest_input_size = 0;
   2765  1.1  christos   unsigned i;
   2766  1.1  christos   unsigned long length;
   2767  1.1  christos   const char *error_message = NULL;
   2768  1.1  christos 
   2769  1.1  christos   if (link_info == NULL)
   2770  1.1  christos     return;
   2771  1.3  christos 
   2772  1.1  christos   apuinfo_list_init ();
   2773  1.1  christos 
   2774  1.1  christos   /* Read in the input sections contents.  */
   2775  1.1  christos   for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next)
   2776  1.1  christos     {
   2777  1.1  christos       unsigned long datum;
   2778  1.1  christos 
   2779  1.7  christos       asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
   2780  1.7  christos       if (asec == NULL)
   2781  1.1  christos 	continue;
   2782  1.1  christos 
   2783  1.1  christos       /* xgettext:c-format */
   2784  1.1  christos       error_message = _("corrupt %s section in %pB");
   2785  1.1  christos       length = asec->size;
   2786  1.1  christos       if (length < 20)
   2787  1.1  christos 	goto fail;
   2788  1.1  christos 
   2789  1.1  christos       apuinfo_set = TRUE;
   2790  1.1  christos       if (largest_input_size < asec->size)
   2791  1.1  christos 	{
   2792  1.1  christos 	  if (buffer)
   2793  1.1  christos 	    free (buffer);
   2794  1.1  christos 	  largest_input_size = asec->size;
   2795  1.1  christos 	  buffer = bfd_malloc (largest_input_size);
   2796  1.1  christos 	  if (!buffer)
   2797  1.1  christos 	    return;
   2798  1.1  christos 	}
   2799  1.7  christos 
   2800  1.7  christos       if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
   2801  1.1  christos 	  || (bfd_bread (buffer, length, ibfd) != length))
   2802  1.1  christos 	{
   2803  1.1  christos 	  /* xgettext:c-format */
   2804  1.1  christos 	  error_message = _("unable to read in %s section from %pB");
   2805  1.1  christos 	  goto fail;
   2806  1.1  christos 	}
   2807  1.1  christos 
   2808  1.1  christos       /* Verify the contents of the header.  Note - we have to
   2809  1.1  christos 	 extract the values this way in order to allow for a
   2810  1.1  christos 	 host whose endian-ness is different from the target.  */
   2811  1.1  christos       datum = bfd_get_32 (ibfd, buffer);
   2812  1.1  christos       if (datum != sizeof APUINFO_LABEL)
   2813  1.1  christos 	goto fail;
   2814  1.1  christos 
   2815  1.1  christos       datum = bfd_get_32 (ibfd, buffer + 8);
   2816  1.1  christos       if (datum != 0x2)
   2817  1.1  christos 	goto fail;
   2818  1.1  christos 
   2819  1.1  christos       if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
   2820  1.1  christos 	goto fail;
   2821  1.1  christos 
   2822  1.1  christos       /* Get the number of bytes used for apuinfo entries.  */
   2823  1.1  christos       datum = bfd_get_32 (ibfd, buffer + 4);
   2824  1.1  christos       if (datum + 20 != length)
   2825  1.1  christos 	goto fail;
   2826  1.1  christos 
   2827  1.1  christos       /* Scan the apuinfo section, building a list of apuinfo numbers.  */
   2828  1.1  christos       for (i = 0; i < datum; i += 4)
   2829  1.1  christos 	apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
   2830  1.1  christos     }
   2831  1.1  christos 
   2832  1.1  christos   error_message = NULL;
   2833  1.1  christos 
   2834  1.1  christos   if (apuinfo_set)
   2835  1.1  christos     {
   2836  1.1  christos       /* Compute the size of the output section.  */
   2837  1.1  christos       unsigned num_entries = apuinfo_list_length ();
   2838  1.1  christos 
   2839  1.1  christos       /* Set the output section size, if it exists.  */
   2840  1.1  christos       asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2841  1.7  christos 
   2842  1.7  christos       if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
   2843  1.1  christos 	{
   2844  1.1  christos 	  ibfd = abfd;
   2845  1.1  christos 	  /* xgettext:c-format */
   2846  1.1  christos 	  error_message = _("warning: unable to set size of %s section in %pB");
   2847  1.1  christos 	}
   2848  1.1  christos     }
   2849  1.1  christos 
   2850  1.1  christos  fail:
   2851  1.7  christos   if (buffer)
   2852  1.1  christos     free (buffer);
   2853  1.1  christos 
   2854  1.1  christos   if (error_message)
   2855  1.1  christos     _bfd_error_handler (error_message, APUINFO_SECTION_NAME, ibfd);
   2856  1.1  christos }
   2857  1.1  christos 
   2858  1.1  christos /* Prevent the output section from accumulating the input sections'
   2859  1.1  christos    contents.  We have already stored this in our linked list structure.  */
   2860  1.1  christos 
   2861  1.1  christos static bfd_boolean
   2862  1.1  christos ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
   2863  1.1  christos 		       struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
   2864  1.1  christos 		       asection *asec,
   2865  1.1  christos 		       bfd_byte *contents ATTRIBUTE_UNUSED)
   2866  1.1  christos {
   2867  1.1  christos   return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
   2868  1.1  christos }
   2869  1.1  christos 
   2870  1.1  christos /* Finally we can generate the output section.  */
   2871  1.1  christos 
   2872  1.1  christos static void
   2873  1.1  christos ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
   2874  1.1  christos {
   2875  1.1  christos   bfd_byte *buffer;
   2876  1.1  christos   asection *asec;
   2877  1.1  christos   unsigned i;
   2878  1.1  christos   unsigned num_entries;
   2879  1.1  christos   bfd_size_type length;
   2880  1.1  christos 
   2881  1.1  christos   asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2882  1.1  christos   if (asec == NULL)
   2883  1.1  christos     return;
   2884  1.1  christos 
   2885  1.1  christos   if (!apuinfo_set)
   2886  1.1  christos     return;
   2887  1.1  christos 
   2888  1.1  christos   length = asec->size;
   2889  1.1  christos   if (length < 20)
   2890  1.1  christos     return;
   2891  1.7  christos 
   2892  1.7  christos   buffer = bfd_malloc (length);
   2893  1.1  christos   if (buffer == NULL)
   2894  1.1  christos     {
   2895  1.1  christos       _bfd_error_handler
   2896  1.1  christos 	(_("failed to allocate space for new APUinfo section"));
   2897  1.1  christos       return;
   2898  1.1  christos     }
   2899  1.1  christos 
   2900  1.1  christos   /* Create the apuinfo header.  */
   2901  1.1  christos   num_entries = apuinfo_list_length ();
   2902  1.1  christos   bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
   2903  1.1  christos   bfd_put_32 (abfd, num_entries * 4, buffer + 4);
   2904  1.1  christos   bfd_put_32 (abfd, 0x2, buffer + 8);
   2905  1.1  christos   strcpy ((char *) buffer + 12, APUINFO_LABEL);
   2906  1.1  christos 
   2907  1.1  christos   length = 20;
   2908  1.1  christos   for (i = 0; i < num_entries; i++)
   2909  1.1  christos     {
   2910  1.1  christos       bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
   2911  1.7  christos       length += 4;
   2912  1.1  christos     }
   2913  1.1  christos 
   2914  1.7  christos   if (length != asec->size)
   2915  1.1  christos     _bfd_error_handler (_("failed to compute new APUinfo section"));
   2916  1.1  christos 
   2917  1.1  christos   if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
   2918  1.1  christos     _bfd_error_handler (_("failed to install new APUinfo section"));
   2919  1.1  christos 
   2920  1.1  christos   free (buffer);
   2921  1.1  christos 
   2922  1.1  christos   apuinfo_list_finish ();
   2923  1.1  christos }
   2924  1.7  christos 
   2925  1.1  christos static bfd_boolean
   2927  1.1  christos is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
   2928  1.1  christos {
   2929  1.1  christos   bfd_byte buf[4 * 4];
   2930  1.1  christos 
   2931  1.1  christos   if (!bfd_get_section_contents (abfd, glink, buf, off, sizeof buf))
   2932  1.1  christos     return FALSE;
   2933  1.1  christos 
   2934  1.1  christos   return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
   2935  1.1  christos 	  && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
   2936  1.1  christos 	  && bfd_get_32 (abfd, buf + 8) == MTCTR_11
   2937  1.1  christos 	  && bfd_get_32 (abfd, buf + 12) == BCTR);
   2938  1.1  christos }
   2939  1.1  christos 
   2940  1.1  christos static bfd_boolean
   2941  1.1  christos section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
   2942  1.1  christos {
   2943  1.1  christos   bfd_vma vma = *(bfd_vma *) ptr;
   2944  1.1  christos   return ((section->flags & SEC_ALLOC) != 0
   2945  1.1  christos 	  && section->vma <= vma
   2946  1.1  christos 	  && vma < section->vma + section->size);
   2947  1.1  christos }
   2948  1.1  christos 
   2949  1.1  christos static long
   2950  1.1  christos ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
   2951  1.1  christos 			      long dynsymcount, asymbol **dynsyms,
   2952  1.1  christos 			      asymbol **ret)
   2953  1.7  christos {
   2954  1.1  christos   bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
   2955  1.1  christos   asection *plt, *relplt, *dynamic, *glink;
   2956  1.7  christos   bfd_vma glink_vma = 0;
   2957  1.1  christos   bfd_vma resolv_vma = 0;
   2958  1.1  christos   bfd_vma stub_off;
   2959  1.1  christos   asymbol *s;
   2960  1.1  christos   arelent *p;
   2961  1.1  christos   long count, i, stub_delta;
   2962  1.1  christos   size_t size;
   2963  1.1  christos   char *names;
   2964  1.1  christos   bfd_byte buf[4];
   2965  1.1  christos 
   2966  1.1  christos   *ret = NULL;
   2967  1.1  christos 
   2968  1.1  christos   if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
   2969  1.1  christos     return 0;
   2970  1.1  christos 
   2971  1.1  christos   if (dynsymcount <= 0)
   2972  1.1  christos     return 0;
   2973  1.1  christos 
   2974  1.1  christos   relplt = bfd_get_section_by_name (abfd, ".rela.plt");
   2975  1.1  christos   if (relplt == NULL)
   2976  1.1  christos     return 0;
   2977  1.1  christos 
   2978  1.1  christos   plt = bfd_get_section_by_name (abfd, ".plt");
   2979  1.1  christos   if (plt == NULL)
   2980  1.1  christos     return 0;
   2981  1.1  christos 
   2982  1.1  christos   /* Call common code to handle old-style executable PLTs.  */
   2983  1.1  christos   if (elf_section_flags (plt) & SHF_EXECINSTR)
   2984  1.1  christos     return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
   2985  1.1  christos 					  dynsymcount, dynsyms, ret);
   2986  1.1  christos 
   2987  1.1  christos   /* If this object was prelinked, the prelinker stored the address
   2988  1.1  christos      of .glink at got[1].  If it wasn't prelinked, got[1] will be zero.  */
   2989  1.1  christos   dynamic = bfd_get_section_by_name (abfd, ".dynamic");
   2990  1.1  christos   if (dynamic != NULL)
   2991  1.1  christos     {
   2992  1.1  christos       bfd_byte *dynbuf, *extdyn, *extdynend;
   2993  1.1  christos       size_t extdynsize;
   2994  1.1  christos       void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
   2995  1.1  christos 
   2996  1.1  christos       if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
   2997  1.1  christos 	return -1;
   2998  1.1  christos 
   2999  1.1  christos       extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
   3000  1.1  christos       swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
   3001  1.1  christos 
   3002  1.1  christos       extdyn = dynbuf;
   3003  1.1  christos       extdynend = extdyn + dynamic->size;
   3004  1.1  christos       for (; extdyn < extdynend; extdyn += extdynsize)
   3005  1.1  christos 	{
   3006  1.1  christos 	  Elf_Internal_Dyn dyn;
   3007  1.1  christos 	  (*swap_dyn_in) (abfd, extdyn, &dyn);
   3008  1.1  christos 
   3009  1.1  christos 	  if (dyn.d_tag == DT_NULL)
   3010  1.1  christos 	    break;
   3011  1.1  christos 
   3012  1.1  christos 	  if (dyn.d_tag == DT_PPC_GOT)
   3013  1.1  christos 	    {
   3014  1.1  christos 	      unsigned int g_o_t = dyn.d_un.d_val;
   3015  1.1  christos 	      asection *got = bfd_get_section_by_name (abfd, ".got");
   3016  1.1  christos 	      if (got != NULL
   3017  1.1  christos 		  && bfd_get_section_contents (abfd, got, buf,
   3018  1.1  christos 					       g_o_t - got->vma + 4, 4))
   3019  1.1  christos 		glink_vma = bfd_get_32 (abfd, buf);
   3020  1.1  christos 	      break;
   3021  1.1  christos 	    }
   3022  1.1  christos 	}
   3023  1.1  christos       free (dynbuf);
   3024  1.1  christos     }
   3025  1.1  christos 
   3026  1.1  christos   /* Otherwise we read the first plt entry.  */
   3027  1.1  christos   if (glink_vma == 0)
   3028  1.1  christos     {
   3029  1.1  christos       if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
   3030  1.1  christos 	glink_vma = bfd_get_32 (abfd, buf);
   3031  1.1  christos     }
   3032  1.1  christos 
   3033  1.1  christos   if (glink_vma == 0)
   3034  1.1  christos     return 0;
   3035  1.1  christos 
   3036  1.1  christos   /* The .glink section usually does not survive the final
   3037  1.1  christos      link; search for the section (usually .text) where the
   3038  1.1  christos      glink stubs now reside.  */
   3039  1.1  christos   glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
   3040  1.1  christos   if (glink == NULL)
   3041  1.1  christos     return 0;
   3042  1.1  christos 
   3043  1.1  christos   /* Determine glink PLT resolver by reading the relative branch
   3044  1.1  christos      from the first glink stub.  */
   3045  1.1  christos   if (bfd_get_section_contents (abfd, glink, buf,
   3046  1.1  christos 				glink_vma - glink->vma, 4))
   3047  1.1  christos     {
   3048  1.1  christos       unsigned int insn = bfd_get_32 (abfd, buf);
   3049  1.1  christos 
   3050  1.1  christos       /* The first glink stub may either branch to the resolver ...  */
   3051  1.1  christos       insn ^= B;
   3052  1.1  christos       if ((insn & ~0x3fffffc) == 0)
   3053  1.1  christos 	resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
   3054  1.1  christos 
   3055  1.1  christos       /* ... or fall through a bunch of NOPs.  */
   3056  1.1  christos       else if ((insn ^ B ^ NOP) == 0)
   3057  1.1  christos 	for (i = 4;
   3058  1.1  christos 	     bfd_get_section_contents (abfd, glink, buf,
   3059  1.1  christos 				       glink_vma - glink->vma + i, 4);
   3060  1.1  christos 	     i += 4)
   3061  1.1  christos 	  if (bfd_get_32 (abfd, buf) != NOP)
   3062  1.1  christos 	    {
   3063  1.1  christos 	      resolv_vma = glink_vma + i;
   3064  1.1  christos 	      break;
   3065  1.1  christos 	    }
   3066  1.1  christos     }
   3067  1.7  christos 
   3068  1.7  christos   count = relplt->size / sizeof (Elf32_External_Rela);
   3069  1.7  christos   /* If the stubs are those for -shared/-pie then we might have
   3070  1.7  christos      multiple stubs for each plt entry.  If that is the case then
   3071  1.7  christos      there is no way to associate stubs with their plt entries short
   3072  1.7  christos      of figuring out the GOT pointer value used in the stub.
   3073  1.7  christos      The offsets tested here need to cover all possible values of
   3074  1.7  christos      GLINK_ENTRY_SIZE for other than __tls_get_addr_opt.  */
   3075  1.1  christos   stub_off = glink_vma - glink->vma;
   3076  1.1  christos   for (stub_delta = 16; stub_delta <= 32; stub_delta += 8)
   3077  1.1  christos     if (is_nonpic_glink_stub (abfd, glink, stub_off - stub_delta))
   3078  1.1  christos       break;
   3079  1.1  christos   if (stub_delta > 32)
   3080  1.1  christos     return 0;
   3081  1.1  christos 
   3082  1.1  christos   slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
   3083  1.1  christos   if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
   3084  1.1  christos     return -1;
   3085  1.1  christos 
   3086  1.1  christos   size = count * sizeof (asymbol);
   3087  1.1  christos   p = relplt->relocation;
   3088  1.1  christos   for (i = 0; i < count; i++, p++)
   3089  1.1  christos     {
   3090  1.1  christos       size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
   3091  1.1  christos       if (p->addend != 0)
   3092  1.1  christos 	size += sizeof ("+0x") - 1 + 8;
   3093  1.1  christos     }
   3094  1.1  christos 
   3095  1.1  christos   size += sizeof (asymbol) + sizeof ("__glink");
   3096  1.1  christos 
   3097  1.1  christos   if (resolv_vma)
   3098  1.1  christos     size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
   3099  1.7  christos 
   3100  1.1  christos   s = *ret = bfd_malloc (size);
   3101  1.3  christos   if (s == NULL)
   3102  1.3  christos     return -1;
   3103  1.1  christos 
   3104  1.1  christos   stub_off = glink_vma - glink->vma;
   3105  1.1  christos   names = (char *) (s + count + 1 + (resolv_vma != 0));
   3106  1.7  christos   p = relplt->relocation + count - 1;
   3107  1.7  christos   for (i = 0; i < count; i++)
   3108  1.7  christos     {
   3109  1.1  christos       size_t len;
   3110  1.1  christos 
   3111  1.1  christos       stub_off -= stub_delta;
   3112  1.1  christos       if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0)
   3113  1.1  christos 	stub_off -= 32;
   3114  1.1  christos       *s = **p->sym_ptr_ptr;
   3115  1.1  christos       /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set.  Since
   3116  1.7  christos 	 we are defining a symbol, ensure one of them is set.  */
   3117  1.1  christos       if ((s->flags & BSF_LOCAL) == 0)
   3118  1.1  christos 	s->flags |= BSF_GLOBAL;
   3119  1.1  christos       s->flags |= BSF_SYNTHETIC;
   3120  1.1  christos       s->section = glink;
   3121  1.1  christos       s->value = stub_off;
   3122  1.1  christos       s->name = names;
   3123  1.1  christos       s->udata.p = NULL;
   3124  1.1  christos       len = strlen ((*p->sym_ptr_ptr)->name);
   3125  1.1  christos       memcpy (names, (*p->sym_ptr_ptr)->name, len);
   3126  1.1  christos       names += len;
   3127  1.1  christos       if (p->addend != 0)
   3128  1.1  christos 	{
   3129  1.1  christos 	  memcpy (names, "+0x", sizeof ("+0x") - 1);
   3130  1.1  christos 	  names += sizeof ("+0x") - 1;
   3131  1.1  christos 	  bfd_sprintf_vma (abfd, names, p->addend);
   3132  1.3  christos 	  names += strlen (names);
   3133  1.1  christos 	}
   3134  1.1  christos       memcpy (names, "@plt", sizeof ("@plt"));
   3135  1.1  christos       names += sizeof ("@plt");
   3136  1.1  christos       ++s;
   3137  1.1  christos       --p;
   3138  1.1  christos     }
   3139  1.1  christos 
   3140  1.1  christos   /* Add a symbol at the start of the glink branch table.  */
   3141  1.1  christos   memset (s, 0, sizeof *s);
   3142  1.1  christos   s->the_bfd = abfd;
   3143  1.1  christos   s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   3144  1.1  christos   s->section = glink;
   3145  1.1  christos   s->value = glink_vma - glink->vma;
   3146  1.1  christos   s->name = names;
   3147  1.1  christos   memcpy (names, "__glink", sizeof ("__glink"));
   3148  1.1  christos   names += sizeof ("__glink");
   3149  1.1  christos   s++;
   3150  1.1  christos   count++;
   3151  1.1  christos 
   3152  1.1  christos   if (resolv_vma)
   3153  1.1  christos     {
   3154  1.1  christos       /* Add a symbol for the glink PLT resolver.  */
   3155  1.1  christos       memset (s, 0, sizeof *s);
   3156  1.1  christos       s->the_bfd = abfd;
   3157  1.1  christos       s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   3158  1.1  christos       s->section = glink;
   3159  1.1  christos       s->value = resolv_vma - glink->vma;
   3160  1.1  christos       s->name = names;
   3161  1.1  christos       memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
   3162  1.1  christos       names += sizeof ("__glink_PLTresolve");
   3163  1.1  christos       s++;
   3164  1.1  christos       count++;
   3165  1.1  christos     }
   3166  1.1  christos 
   3167  1.1  christos   return count;
   3168  1.1  christos }
   3169  1.1  christos 
   3170  1.1  christos /* The following functions are specific to the ELF linker, while
   3172  1.1  christos    functions above are used generally.  They appear in this file more
   3173  1.1  christos    or less in the order in which they are called.  eg.
   3174  1.1  christos    ppc_elf_check_relocs is called early in the link process,
   3175  1.1  christos    ppc_elf_finish_dynamic_sections is one of the last functions
   3176  1.1  christos    called.  */
   3177  1.1  christos 
   3178  1.1  christos /* Track PLT entries needed for a given symbol.  We might need more
   3179  1.1  christos    than one glink entry per symbol when generating a pic binary.  */
   3180  1.1  christos struct plt_entry
   3181  1.1  christos {
   3182  1.1  christos   struct plt_entry *next;
   3183  1.1  christos 
   3184  1.1  christos   /* -fPIC uses multiple GOT sections, one per file, called ".got2".
   3185  1.1  christos      This field stores the offset into .got2 used to initialise the
   3186  1.1  christos      GOT pointer reg.  It will always be at least 32768.  (Current
   3187  1.1  christos      gcc always uses an offset of 32768, but ld -r will pack .got2
   3188  1.1  christos      sections together resulting in larger offsets).  */
   3189  1.1  christos   bfd_vma addend;
   3190  1.1  christos 
   3191  1.1  christos   /* The .got2 section.  */
   3192  1.1  christos   asection *sec;
   3193  1.1  christos 
   3194  1.1  christos   /* PLT refcount or offset.  */
   3195  1.1  christos   union
   3196  1.1  christos     {
   3197  1.1  christos       bfd_signed_vma refcount;
   3198  1.1  christos       bfd_vma offset;
   3199  1.7  christos     } plt;
   3200  1.7  christos 
   3201  1.7  christos   /* .glink stub offset.  */
   3202  1.1  christos   bfd_vma glink_offset;
   3203  1.1  christos };
   3204  1.1  christos 
   3205  1.1  christos /* Of those relocs that might be copied as dynamic relocs, this
   3206  1.1  christos    function selects those that must be copied when linking a shared
   3207  1.1  christos    library or PIE, even when the symbol is local.  */
   3208  1.1  christos 
   3209  1.1  christos static int
   3210  1.7  christos must_be_dyn_reloc (struct bfd_link_info *info,
   3211  1.7  christos 		   enum elf_ppc_reloc_type r_type)
   3212  1.7  christos {
   3213  1.7  christos   switch (r_type)
   3214  1.1  christos     {
   3215  1.1  christos     default:
   3216  1.1  christos       /* Only relative relocs can be resolved when the object load
   3217  1.1  christos 	 address isn't fixed.  DTPREL32 is excluded because the
   3218  1.1  christos 	 dynamic linker needs to differentiate global dynamic from
   3219  1.1  christos 	 local dynamic __tls_index pairs when PPC_OPT_TLS is set.  */
   3220  1.1  christos       return 1;
   3221  1.1  christos 
   3222  1.1  christos     case R_PPC_REL24:
   3223  1.1  christos     case R_PPC_REL14:
   3224  1.1  christos     case R_PPC_REL14_BRTAKEN:
   3225  1.1  christos     case R_PPC_REL14_BRNTAKEN:
   3226  1.1  christos     case R_PPC_REL32:
   3227  1.1  christos       return 0;
   3228  1.7  christos 
   3229  1.7  christos     case R_PPC_TPREL32:
   3230  1.7  christos     case R_PPC_TPREL16:
   3231  1.1  christos     case R_PPC_TPREL16_LO:
   3232  1.1  christos     case R_PPC_TPREL16_HI:
   3233  1.1  christos     case R_PPC_TPREL16_HA:
   3234  1.1  christos       /* These relocations are relative but in a shared library the
   3235  1.1  christos 	 linker doesn't know the thread pointer base.  */
   3236  1.1  christos       return bfd_link_dll (info);
   3237  1.1  christos     }
   3238  1.1  christos }
   3239  1.1  christos 
   3240  1.3  christos /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
   3241  1.3  christos    copying dynamic variables from a shared lib into an app's dynbss
   3242  1.3  christos    section, and instead use a dynamic relocation to point into the
   3243  1.3  christos    shared lib.  */
   3244  1.3  christos #define ELIMINATE_COPY_RELOCS 1
   3245  1.3  christos 
   3246  1.3  christos /* Used to track dynamic relocations for local symbols.  */
   3247  1.3  christos struct ppc_dyn_relocs
   3248  1.3  christos {
   3249  1.3  christos   struct ppc_dyn_relocs *next;
   3250  1.3  christos 
   3251  1.3  christos   /* The input section of the reloc.  */
   3252  1.3  christos   asection *sec;
   3253  1.3  christos 
   3254  1.3  christos   /* Total number of relocs copied for the input section.  */
   3255  1.1  christos   unsigned int count : 31;
   3256  1.1  christos 
   3257  1.1  christos   /* Whether this entry is for STT_GNU_IFUNC symbols.  */
   3258  1.1  christos   unsigned int ifunc : 1;
   3259  1.1  christos };
   3260  1.1  christos 
   3261  1.1  christos /* PPC ELF linker hash entry.  */
   3262  1.1  christos 
   3263  1.1  christos struct ppc_elf_link_hash_entry
   3264  1.1  christos {
   3265  1.1  christos   struct elf_link_hash_entry elf;
   3266  1.1  christos 
   3267  1.1  christos   /* If this symbol is used in the linker created sections, the processor
   3268  1.1  christos      specific backend uses this field to map the field into the offset
   3269  1.7  christos      from the beginning of the section.  */
   3270  1.7  christos   elf_linker_section_pointers_t *linker_section_pointer;
   3271  1.7  christos 
   3272  1.7  christos   /* Track dynamic relocs copied for this symbol.  */
   3273  1.7  christos   struct elf_dyn_relocs *dyn_relocs;
   3274  1.7  christos 
   3275  1.7  christos   /* Contexts in which symbol is used in the GOT.
   3276  1.7  christos      Bits are or'd into the mask as the corresponding relocs are
   3277  1.7  christos      encountered during check_relocs, with TLS_TLS being set when any
   3278  1.7  christos      of the other TLS bits are set.  tls_optimize clears bits when
   3279  1.7  christos      optimizing to indicate the corresponding GOT entry type is not
   3280  1.7  christos      needed.  If set, TLS_TLS is never cleared.  tls_optimize may also
   3281  1.7  christos      set TLS_TPRELGD when a GD reloc turns into a TPREL one.  We use a
   3282  1.7  christos      separate flag rather than setting TPREL just for convenience in
   3283  1.7  christos      distinguishing the two cases.
   3284  1.7  christos      These flags are also kept for local symbols.  */
   3285  1.7  christos #define TLS_TLS		 1	/* Any TLS reloc.  */
   3286  1.7  christos #define TLS_GD		 2	/* GD reloc. */
   3287  1.7  christos #define TLS_LD		 4	/* LD reloc. */
   3288  1.7  christos #define TLS_TPREL	 8	/* TPREL reloc, => IE. */
   3289  1.7  christos #define TLS_DTPREL	16	/* DTPREL reloc, => LD. */
   3290  1.7  christos #define TLS_MARK	32	/* __tls_get_addr call marked. */
   3291  1.7  christos #define TLS_TPRELGD	64	/* TPREL reloc resulting from GD->IE. */
   3292  1.7  christos   unsigned char tls_mask;
   3293  1.1  christos 
   3294  1.1  christos   /* The above field is also used to mark function symbols.  In which
   3295  1.1  christos      case TLS_TLS will be 0.  */
   3296  1.3  christos #define PLT_IFUNC	 2	/* STT_GNU_IFUNC.  */
   3297  1.3  christos #define PLT_KEEP	 4	/* inline plt call requires plt entry.  */
   3298  1.3  christos #define NON_GOT        256	/* local symbol plt, not stored.  */
   3299  1.3  christos 
   3300  1.3  christos   /* Nonzero if we have seen a small data relocation referring to this
   3301  1.1  christos      symbol.  */
   3302  1.1  christos   unsigned char has_sda_refs : 1;
   3303  1.1  christos 
   3304  1.1  christos   /* Flag use of given relocations.  */
   3305  1.1  christos   unsigned char has_addr16_ha : 1;
   3306  1.1  christos   unsigned char has_addr16_lo : 1;
   3307  1.1  christos };
   3308  1.1  christos 
   3309  1.1  christos #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
   3310  1.1  christos 
   3311  1.3  christos /* PPC ELF linker hash table.  */
   3312  1.3  christos 
   3313  1.3  christos struct ppc_elf_link_hash_table
   3314  1.1  christos {
   3315  1.1  christos   struct elf_link_hash_table elf;
   3316  1.1  christos 
   3317  1.1  christos   /* Various options passed from the linker.  */
   3318  1.1  christos   struct ppc_elf_params *params;
   3319  1.1  christos 
   3320  1.1  christos   /* Short-cuts to get to dynamic linker sections.  */
   3321  1.7  christos   asection *glink;
   3322  1.7  christos   asection *dynsbss;
   3323  1.1  christos   asection *relsbss;
   3324  1.1  christos   elf_linker_section_t sdata[2];
   3325  1.1  christos   asection *sbss;
   3326  1.1  christos   asection *glink_eh_frame;
   3327  1.1  christos   asection *pltlocal;
   3328  1.1  christos   asection *relpltlocal;
   3329  1.1  christos 
   3330  1.1  christos   /* The (unloaded but important) .rela.plt.unloaded on VxWorks.  */
   3331  1.1  christos   asection *srelplt2;
   3332  1.1  christos 
   3333  1.1  christos   /* Shortcut to __tls_get_addr.  */
   3334  1.1  christos   struct elf_link_hash_entry *tls_get_addr;
   3335  1.1  christos 
   3336  1.1  christos   /* The bfd that forced an old-style PLT.  */
   3337  1.1  christos   bfd *old_bfd;
   3338  1.1  christos 
   3339  1.1  christos   /* TLS local dynamic got entry handling.  */
   3340  1.1  christos   union {
   3341  1.1  christos     bfd_signed_vma refcount;
   3342  1.1  christos     bfd_vma offset;
   3343  1.1  christos   } tlsld_got;
   3344  1.1  christos 
   3345  1.1  christos   /* Offset of branch table to PltResolve function in glink.  */
   3346  1.1  christos   bfd_vma glink_pltresolve;
   3347  1.1  christos 
   3348  1.1  christos   /* Size of reserved GOT entries.  */
   3349  1.1  christos   unsigned int got_header_size;
   3350  1.1  christos   /* Non-zero if allocating the header left a gap.  */
   3351  1.1  christos   unsigned int got_gap;
   3352  1.1  christos 
   3353  1.7  christos   /* The type of PLT we have chosen to use.  */
   3354  1.7  christos   enum ppc_elf_plt_type plt_type;
   3355  1.7  christos 
   3356  1.7  christos   /* True if the target system is VxWorks.  */
   3357  1.7  christos   unsigned int is_vxworks:1;
   3358  1.7  christos 
   3359  1.7  christos   /* Whether there exist local gnu indirect function resolvers,
   3360  1.7  christos      referenced by dynamic relocations.  */
   3361  1.7  christos   unsigned int local_ifunc_resolver:1;
   3362  1.7  christos   unsigned int maybe_local_ifunc_resolver:1;
   3363  1.7  christos 
   3364  1.1  christos   /* Set if tls optimization is enabled.  */
   3365  1.1  christos   unsigned int do_tls_opt:1;
   3366  1.1  christos 
   3367  1.1  christos   /* Set if inline plt calls should be converted to direct calls.  */
   3368  1.1  christos   unsigned int can_convert_all_inline_plt:1;
   3369  1.1  christos 
   3370  1.1  christos   /* The size of PLT entries.  */
   3371  1.1  christos   int plt_entry_size;
   3372  1.1  christos   /* The distance between adjacent PLT slots.  */
   3373  1.1  christos   int plt_slot_size;
   3374  1.1  christos   /* The size of the first PLT entry.  */
   3375  1.1  christos   int plt_initial_entry_size;
   3376  1.1  christos 
   3377  1.1  christos   /* Small local sym cache.  */
   3378  1.1  christos   struct sym_cache sym_cache;
   3379  1.1  christos };
   3380  1.1  christos 
   3381  1.1  christos /* Rename some of the generic section flags to better document how they
   3382  1.1  christos    are used for ppc32.  The flags are only valid for ppc32 elf objects.  */
   3383  1.1  christos 
   3384  1.7  christos /* Nonzero if this section has TLS related relocations.  */
   3385  1.7  christos #define has_tls_reloc sec_flg0
   3386  1.7  christos 
   3387  1.1  christos /* Nonzero if this section has a call to __tls_get_addr.  */
   3388  1.1  christos #define has_tls_get_addr_call sec_flg1
   3389  1.1  christos 
   3390  1.1  christos   /* Flag set when PLTCALL relocs are detected.  */
   3391  1.1  christos #define has_pltcall sec_flg2
   3392  1.1  christos 
   3393  1.1  christos /* Get the PPC ELF linker hash table from a link_info structure.  */
   3394  1.1  christos 
   3395  1.1  christos #define ppc_elf_hash_table(p) \
   3396  1.1  christos   (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
   3397  1.1  christos   == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
   3398  1.1  christos 
   3399  1.1  christos /* Create an entry in a PPC ELF linker hash table.  */
   3400  1.1  christos 
   3401  1.1  christos static struct bfd_hash_entry *
   3402  1.1  christos ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
   3403  1.1  christos 			   struct bfd_hash_table *table,
   3404  1.1  christos 			   const char *string)
   3405  1.1  christos {
   3406  1.1  christos   /* Allocate the structure if it has not already been allocated by a
   3407  1.1  christos      subclass.  */
   3408  1.1  christos   if (entry == NULL)
   3409  1.1  christos     {
   3410  1.1  christos       entry = bfd_hash_allocate (table,
   3411  1.1  christos 				 sizeof (struct ppc_elf_link_hash_entry));
   3412  1.1  christos       if (entry == NULL)
   3413  1.1  christos 	return entry;
   3414  1.1  christos     }
   3415  1.1  christos 
   3416  1.1  christos   /* Call the allocation method of the superclass.  */
   3417  1.1  christos   entry = _bfd_elf_link_hash_newfunc (entry, table, string);
   3418  1.1  christos   if (entry != NULL)
   3419  1.1  christos     {
   3420  1.1  christos       ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
   3421  1.1  christos       ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
   3422  1.1  christos       ppc_elf_hash_entry (entry)->tls_mask = 0;
   3423  1.1  christos       ppc_elf_hash_entry (entry)->has_sda_refs = 0;
   3424  1.1  christos     }
   3425  1.1  christos 
   3426  1.1  christos   return entry;
   3427  1.1  christos }
   3428  1.1  christos 
   3429  1.7  christos /* Create a PPC ELF linker hash table.  */
   3430  1.7  christos 
   3431  1.1  christos static struct bfd_link_hash_table *
   3432  1.1  christos ppc_elf_link_hash_table_create (bfd *abfd)
   3433  1.1  christos {
   3434  1.1  christos   struct ppc_elf_link_hash_table *ret;
   3435  1.1  christos   static struct ppc_elf_params default_params
   3436  1.1  christos     = { PLT_OLD, 0, 0, 1, 0, 0, 12, 0, 0, 0 };
   3437  1.1  christos 
   3438  1.1  christos   ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
   3439  1.1  christos   if (ret == NULL)
   3440  1.1  christos     return NULL;
   3441  1.1  christos 
   3442  1.1  christos   if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
   3443  1.1  christos 				      ppc_elf_link_hash_newfunc,
   3444  1.1  christos 				      sizeof (struct ppc_elf_link_hash_entry),
   3445  1.1  christos 				      PPC32_ELF_DATA))
   3446  1.1  christos     {
   3447  1.1  christos       free (ret);
   3448  1.1  christos       return NULL;
   3449  1.1  christos     }
   3450  1.3  christos 
   3451  1.3  christos   ret->elf.init_plt_refcount.refcount = 0;
   3452  1.1  christos   ret->elf.init_plt_refcount.glist = NULL;
   3453  1.1  christos   ret->elf.init_plt_offset.offset = 0;
   3454  1.1  christos   ret->elf.init_plt_offset.glist = NULL;
   3455  1.1  christos 
   3456  1.1  christos   ret->params = &default_params;
   3457  1.1  christos 
   3458  1.1  christos   ret->sdata[0].name = ".sdata";
   3459  1.1  christos   ret->sdata[0].sym_name = "_SDA_BASE_";
   3460  1.1  christos   ret->sdata[0].bss_name = ".sbss";
   3461  1.1  christos 
   3462  1.1  christos   ret->sdata[1].name = ".sdata2";
   3463  1.1  christos   ret->sdata[1].sym_name = "_SDA2_BASE_";
   3464  1.1  christos   ret->sdata[1].bss_name = ".sbss2";
   3465  1.1  christos 
   3466  1.1  christos   ret->plt_entry_size = 12;
   3467  1.3  christos   ret->plt_slot_size = 8;
   3468  1.3  christos   ret->plt_initial_entry_size = 72;
   3469  1.3  christos 
   3470  1.3  christos   return &ret->elf.root;
   3471  1.3  christos }
   3472  1.3  christos 
   3473  1.3  christos /* Hook linker params into hash table.  */
   3474  1.3  christos 
   3475  1.3  christos void
   3476  1.7  christos ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params)
   3477  1.3  christos {
   3478  1.3  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3479  1.1  christos 
   3480  1.1  christos   if (htab)
   3481  1.1  christos     htab->params = params;
   3482  1.1  christos   params->pagesize_p2 = bfd_log2 (params->pagesize);
   3483  1.1  christos }
   3484  1.1  christos 
   3485  1.1  christos /* Create .got and the related sections.  */
   3486  1.1  christos 
   3487  1.1  christos static bfd_boolean
   3488  1.1  christos ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
   3489  1.1  christos {
   3490  1.7  christos   struct ppc_elf_link_hash_table *htab;
   3491  1.1  christos 
   3492  1.1  christos   if (!_bfd_elf_create_got_section (abfd, info))
   3493  1.1  christos     return FALSE;
   3494  1.7  christos 
   3495  1.7  christos   htab = ppc_elf_hash_table (info);
   3496  1.7  christos   if (!htab->is_vxworks)
   3497  1.1  christos     {
   3498  1.1  christos       /* The powerpc .got has a blrl instruction in it.  Mark it
   3499  1.1  christos 	 executable.  */
   3500  1.1  christos       flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
   3501  1.1  christos 			| SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3502  1.1  christos       if (!bfd_set_section_flags (abfd, htab->elf.sgot, flags))
   3503  1.3  christos 	return FALSE;
   3504  1.3  christos     }
   3505  1.3  christos 
   3506  1.3  christos   return TRUE;
   3507  1.3  christos }
   3508  1.3  christos 
   3509  1.3  christos /* Create a special linker section, used for R_PPC_EMB_SDAI16 and
   3510  1.3  christos    R_PPC_EMB_SDA2I16 pointers.  These sections become part of .sdata
   3511  1.3  christos    and .sdata2.  Create _SDA_BASE_ and _SDA2_BASE too.  */
   3512  1.3  christos 
   3513  1.3  christos static bfd_boolean
   3514  1.3  christos ppc_elf_create_linker_section (bfd *abfd,
   3515  1.3  christos 			       struct bfd_link_info *info,
   3516  1.3  christos 			       flagword flags,
   3517  1.3  christos 			       elf_linker_section_t *lsect)
   3518  1.3  christos {
   3519  1.3  christos   asection *s;
   3520  1.3  christos 
   3521  1.3  christos   flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
   3522  1.3  christos 	    | SEC_LINKER_CREATED);
   3523  1.3  christos 
   3524  1.3  christos   s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags);
   3525  1.3  christos   if (s == NULL)
   3526  1.3  christos     return FALSE;
   3527  1.3  christos   lsect->section = s;
   3528  1.3  christos 
   3529  1.3  christos   /* Define the sym on the first section of this name.  */
   3530  1.3  christos   s = bfd_get_section_by_name (abfd, lsect->name);
   3531  1.3  christos 
   3532  1.3  christos   lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name);
   3533  1.1  christos   if (lsect->sym == NULL)
   3534  1.1  christos     return FALSE;
   3535  1.1  christos   lsect->sym->root.u.def.value = 0x8000;
   3536  1.1  christos   return TRUE;
   3537  1.1  christos }
   3538  1.1  christos 
   3539  1.7  christos static bfd_boolean
   3540  1.1  christos ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
   3541  1.1  christos {
   3542  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3543  1.1  christos   asection *s;
   3544  1.1  christos   flagword flags;
   3545  1.7  christos   int p2align;
   3546  1.7  christos 
   3547  1.7  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
   3548  1.1  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3549  1.7  christos   s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
   3550  1.1  christos   htab->glink = s;
   3551  1.1  christos   p2align = htab->params->ppc476_workaround ? 6 : 4;
   3552  1.1  christos   if (p2align < htab->params->plt_stub_align)
   3553  1.1  christos     p2align = htab->params->plt_stub_align;
   3554  1.1  christos   if (s == NULL
   3555  1.1  christos       || !bfd_set_section_alignment (abfd, s, p2align))
   3556  1.1  christos     return FALSE;
   3557  1.1  christos 
   3558  1.1  christos   if (!info->no_ld_generated_unwind_info)
   3559  1.1  christos     {
   3560  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3561  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3562  1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
   3563  1.1  christos       htab->glink_eh_frame = s;
   3564  1.1  christos       if (s == NULL
   3565  1.7  christos 	  || !bfd_set_section_alignment (abfd, s, 2))
   3566  1.1  christos 	return FALSE;
   3567  1.1  christos     }
   3568  1.1  christos 
   3569  1.1  christos   flags = SEC_ALLOC | SEC_LINKER_CREATED;
   3570  1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
   3571  1.1  christos   htab->elf.iplt = s;
   3572  1.1  christos   if (s == NULL
   3573  1.7  christos       || !bfd_set_section_alignment (abfd, s, 4))
   3574  1.1  christos     return FALSE;
   3575  1.1  christos 
   3576  1.1  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3577  1.3  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3578  1.7  christos   s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
   3579  1.7  christos   htab->elf.irelplt = s;
   3580  1.7  christos   if (s == NULL
   3581  1.7  christos       || ! bfd_set_section_alignment (abfd, s, 2))
   3582  1.7  christos     return FALSE;
   3583  1.7  christos 
   3584  1.7  christos   /* Local plt entries.  */
   3585  1.7  christos   flags = (SEC_ALLOC | SEC_LOAD
   3586  1.7  christos 	   | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3587  1.7  christos   htab->pltlocal = bfd_make_section_anyway_with_flags (abfd, ".branch_lt",
   3588  1.7  christos 						       flags);
   3589  1.7  christos   if (htab->pltlocal == NULL
   3590  1.7  christos       || ! bfd_set_section_alignment (abfd, htab->pltlocal, 2))
   3591  1.7  christos     return FALSE;
   3592  1.7  christos 
   3593  1.7  christos   if (bfd_link_pic (info))
   3594  1.7  christos     {
   3595  1.7  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
   3596  1.7  christos 	       | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3597  1.7  christos       htab->relpltlocal
   3598  1.3  christos 	= bfd_make_section_anyway_with_flags (abfd, ".rela.branch_lt", flags);
   3599  1.3  christos       if (htab->relpltlocal == NULL
   3600  1.3  christos 	  || ! bfd_set_section_alignment (abfd, htab->relpltlocal, 2))
   3601  1.3  christos 	return FALSE;
   3602  1.3  christos     }
   3603  1.3  christos 
   3604  1.3  christos   if (!ppc_elf_create_linker_section (abfd, info, 0,
   3605  1.3  christos 				      &htab->sdata[0]))
   3606  1.1  christos     return FALSE;
   3607  1.1  christos 
   3608  1.1  christos   if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
   3609  1.1  christos 				      &htab->sdata[1]))
   3610  1.1  christos     return FALSE;
   3611  1.1  christos 
   3612  1.1  christos   return TRUE;
   3613  1.1  christos }
   3614  1.1  christos 
   3615  1.1  christos /* We have to create .dynsbss and .rela.sbss here so that they get mapped
   3616  1.1  christos    to output sections (just like _bfd_elf_create_dynamic_sections has
   3617  1.1  christos    to create .dynbss and .rela.bss).  */
   3618  1.1  christos 
   3619  1.1  christos static bfd_boolean
   3620  1.1  christos ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
   3621  1.1  christos {
   3622  1.7  christos   struct ppc_elf_link_hash_table *htab;
   3623  1.1  christos   asection *s;
   3624  1.1  christos   flagword flags;
   3625  1.1  christos 
   3626  1.1  christos   htab = ppc_elf_hash_table (info);
   3627  1.1  christos 
   3628  1.1  christos   if (htab->elf.sgot == NULL
   3629  1.1  christos       && !ppc_elf_create_got (abfd, info))
   3630  1.1  christos     return FALSE;
   3631  1.1  christos 
   3632  1.1  christos   if (!_bfd_elf_create_dynamic_sections (abfd, info))
   3633  1.1  christos     return FALSE;
   3634  1.1  christos 
   3635  1.1  christos   if (htab->glink == NULL
   3636  1.1  christos       && !ppc_elf_create_glink (abfd, info))
   3637  1.1  christos     return FALSE;
   3638  1.1  christos 
   3639  1.3  christos   s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
   3640  1.1  christos 					  SEC_ALLOC | SEC_LINKER_CREATED);
   3641  1.1  christos   htab->dynsbss = s;
   3642  1.1  christos   if (s == NULL)
   3643  1.1  christos     return FALSE;
   3644  1.1  christos 
   3645  1.1  christos   if (! bfd_link_pic (info))
   3646  1.1  christos     {
   3647  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3648  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3649  1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
   3650  1.1  christos       htab->relsbss = s;
   3651  1.1  christos       if (s == NULL
   3652  1.1  christos 	  || ! bfd_set_section_alignment (abfd, s, 2))
   3653  1.1  christos 	return FALSE;
   3654  1.7  christos     }
   3655  1.1  christos 
   3656  1.1  christos   if (htab->is_vxworks
   3657  1.1  christos       && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
   3658  1.1  christos     return FALSE;
   3659  1.1  christos 
   3660  1.1  christos   s = htab->elf.splt;
   3661  1.1  christos   flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
   3662  1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   3663  1.1  christos     /* The VxWorks PLT is a loaded section with contents.  */
   3664  1.1  christos     flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
   3665  1.1  christos   return bfd_set_section_flags (abfd, s, flags);
   3666  1.1  christos }
   3667  1.1  christos 
   3668  1.1  christos /* Copy the extra info we tack onto an elf_link_hash_entry.  */
   3669  1.1  christos 
   3670  1.1  christos static void
   3671  1.1  christos ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
   3672  1.1  christos 			      struct elf_link_hash_entry *dir,
   3673  1.1  christos 			      struct elf_link_hash_entry *ind)
   3674  1.1  christos {
   3675  1.1  christos   struct ppc_elf_link_hash_entry *edir, *eind;
   3676  1.1  christos 
   3677  1.7  christos   edir = (struct ppc_elf_link_hash_entry *) dir;
   3678  1.7  christos   eind = (struct ppc_elf_link_hash_entry *) ind;
   3679  1.1  christos 
   3680  1.1  christos   edir->tls_mask |= eind->tls_mask;
   3681  1.7  christos   edir->has_sda_refs |= eind->has_sda_refs;
   3682  1.1  christos 
   3683  1.1  christos   if (edir->elf.versioned != versioned_hidden)
   3684  1.1  christos     edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
   3685  1.7  christos   edir->elf.ref_regular |= eind->elf.ref_regular;
   3686  1.7  christos   edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
   3687  1.7  christos   edir->elf.non_got_ref |= eind->elf.non_got_ref;
   3688  1.7  christos   edir->elf.needs_plt |= eind->elf.needs_plt;
   3689  1.1  christos   edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
   3690  1.1  christos 
   3691  1.1  christos   /* If we were called to copy over info for a weak sym, that's all.  */
   3692  1.1  christos   if (eind->elf.root.type != bfd_link_hash_indirect)
   3693  1.1  christos     return;
   3694  1.1  christos 
   3695  1.1  christos   if (eind->dyn_relocs != NULL)
   3696  1.1  christos     {
   3697  1.1  christos       if (edir->dyn_relocs != NULL)
   3698  1.1  christos 	{
   3699  1.1  christos 	  struct elf_dyn_relocs **pp;
   3700  1.1  christos 	  struct elf_dyn_relocs *p;
   3701  1.1  christos 
   3702  1.1  christos 	  /* Add reloc counts against the indirect sym to the direct sym
   3703  1.1  christos 	     list.  Merge any entries against the same section.  */
   3704  1.1  christos 	  for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
   3705  1.1  christos 	    {
   3706  1.1  christos 	      struct elf_dyn_relocs *q;
   3707  1.1  christos 
   3708  1.1  christos 	      for (q = edir->dyn_relocs; q != NULL; q = q->next)
   3709  1.1  christos 		if (q->sec == p->sec)
   3710  1.1  christos 		  {
   3711  1.1  christos 		    q->pc_count += p->pc_count;
   3712  1.1  christos 		    q->count += p->count;
   3713  1.1  christos 		    *pp = p->next;
   3714  1.1  christos 		    break;
   3715  1.1  christos 		  }
   3716  1.1  christos 	      if (q == NULL)
   3717  1.1  christos 		pp = &p->next;
   3718  1.1  christos 	    }
   3719  1.1  christos 	  *pp = edir->dyn_relocs;
   3720  1.1  christos 	}
   3721  1.1  christos 
   3722  1.1  christos       edir->dyn_relocs = eind->dyn_relocs;
   3723  1.1  christos       eind->dyn_relocs = NULL;
   3724  1.1  christos     }
   3725  1.1  christos 
   3726  1.1  christos   /* Copy over the GOT refcount entries that we may have already seen to
   3727  1.1  christos      the symbol which just became indirect.  */
   3728  1.1  christos   edir->elf.got.refcount += eind->elf.got.refcount;
   3729  1.1  christos   eind->elf.got.refcount = 0;
   3730  1.1  christos 
   3731  1.1  christos   /* And plt entries.  */
   3732  1.1  christos   if (eind->elf.plt.plist != NULL)
   3733  1.1  christos     {
   3734  1.1  christos       if (edir->elf.plt.plist != NULL)
   3735  1.1  christos 	{
   3736  1.1  christos 	  struct plt_entry **entp;
   3737  1.1  christos 	  struct plt_entry *ent;
   3738  1.1  christos 
   3739  1.1  christos 	  for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
   3740  1.1  christos 	    {
   3741  1.1  christos 	      struct plt_entry *dent;
   3742  1.1  christos 
   3743  1.1  christos 	      for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
   3744  1.1  christos 		if (dent->sec == ent->sec && dent->addend == ent->addend)
   3745  1.1  christos 		  {
   3746  1.1  christos 		    dent->plt.refcount += ent->plt.refcount;
   3747  1.1  christos 		    *entp = ent->next;
   3748  1.1  christos 		    break;
   3749  1.1  christos 		  }
   3750  1.1  christos 	      if (dent == NULL)
   3751  1.1  christos 		entp = &ent->next;
   3752  1.1  christos 	    }
   3753  1.1  christos 	  *entp = edir->elf.plt.plist;
   3754  1.1  christos 	}
   3755  1.1  christos 
   3756  1.1  christos       edir->elf.plt.plist = eind->elf.plt.plist;
   3757  1.1  christos       eind->elf.plt.plist = NULL;
   3758  1.1  christos     }
   3759  1.1  christos 
   3760  1.1  christos   if (eind->elf.dynindx != -1)
   3761  1.1  christos     {
   3762  1.1  christos       if (edir->elf.dynindx != -1)
   3763  1.1  christos 	_bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   3764  1.1  christos 				edir->elf.dynstr_index);
   3765  1.1  christos       edir->elf.dynindx = eind->elf.dynindx;
   3766  1.1  christos       edir->elf.dynstr_index = eind->elf.dynstr_index;
   3767  1.1  christos       eind->elf.dynindx = -1;
   3768  1.1  christos       eind->elf.dynstr_index = 0;
   3769  1.1  christos     }
   3770  1.1  christos }
   3771  1.1  christos 
   3772  1.1  christos /* Hook called by the linker routine which adds symbols from an object
   3773  1.1  christos    file.  We use it to put .comm items in .sbss, and not .bss.  */
   3774  1.1  christos 
   3775  1.1  christos static bfd_boolean
   3776  1.1  christos ppc_elf_add_symbol_hook (bfd *abfd,
   3777  1.1  christos 			 struct bfd_link_info *info,
   3778  1.1  christos 			 Elf_Internal_Sym *sym,
   3779  1.3  christos 			 const char **namep ATTRIBUTE_UNUSED,
   3780  1.1  christos 			 flagword *flagsp ATTRIBUTE_UNUSED,
   3781  1.1  christos 			 asection **secp,
   3782  1.1  christos 			 bfd_vma *valp)
   3783  1.1  christos {
   3784  1.1  christos   if (sym->st_shndx == SHN_COMMON
   3785  1.1  christos       && !bfd_link_relocatable (info)
   3786  1.1  christos       && is_ppc_elf (info->output_bfd)
   3787  1.1  christos       && sym->st_size <= elf_gp_size (abfd))
   3788  1.1  christos     {
   3789  1.1  christos       /* Common symbols less than or equal to -G nn bytes are automatically
   3790  1.1  christos 	 put into .sbss.  */
   3791  1.1  christos       struct ppc_elf_link_hash_table *htab;
   3792  1.1  christos 
   3793  1.1  christos       htab = ppc_elf_hash_table (info);
   3794  1.1  christos       if (htab->sbss == NULL)
   3795  1.1  christos 	{
   3796  1.1  christos 	  flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
   3797  1.1  christos 
   3798  1.1  christos 	  if (!htab->elf.dynobj)
   3799  1.1  christos 	    htab->elf.dynobj = abfd;
   3800  1.1  christos 
   3801  1.1  christos 	  htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
   3802  1.1  christos 							   ".sbss",
   3803  1.1  christos 							   flags);
   3804  1.1  christos 	  if (htab->sbss == NULL)
   3805  1.1  christos 	    return FALSE;
   3806  1.1  christos 	}
   3807  1.1  christos 
   3808  1.1  christos       *secp = htab->sbss;
   3809  1.1  christos       *valp = sym->st_size;
   3810  1.1  christos     }
   3811  1.1  christos 
   3812  1.1  christos   return TRUE;
   3813  1.1  christos }
   3814  1.1  christos 
   3815  1.1  christos /* Find a linker generated pointer with a given addend and type.  */
   3817  1.1  christos 
   3818  1.1  christos static elf_linker_section_pointers_t *
   3819  1.1  christos elf_find_pointer_linker_section
   3820  1.1  christos   (elf_linker_section_pointers_t *linker_pointers,
   3821  1.1  christos    bfd_vma addend,
   3822  1.1  christos    elf_linker_section_t *lsect)
   3823  1.1  christos {
   3824  1.1  christos   for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
   3825  1.1  christos     if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
   3826  1.1  christos       return linker_pointers;
   3827  1.3  christos 
   3828  1.3  christos   return NULL;
   3829  1.3  christos }
   3830  1.3  christos 
   3831  1.1  christos /* Allocate a pointer to live in a linker created section.  */
   3832  1.1  christos 
   3833  1.1  christos static bfd_boolean
   3834  1.1  christos elf_allocate_pointer_linker_section (bfd *abfd,
   3835  1.1  christos 				     elf_linker_section_t *lsect,
   3836  1.1  christos 				     struct elf_link_hash_entry *h,
   3837  1.1  christos 				     const Elf_Internal_Rela *rel)
   3838  1.1  christos {
   3839  1.1  christos   elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
   3840  1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   3841  1.1  christos   unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   3842  1.1  christos   bfd_size_type amt;
   3843  1.1  christos 
   3844  1.1  christos   BFD_ASSERT (lsect != NULL);
   3845  1.1  christos 
   3846  1.1  christos   /* Is this a global symbol?  */
   3847  1.1  christos   if (h != NULL)
   3848  1.1  christos     {
   3849  1.1  christos       struct ppc_elf_link_hash_entry *eh;
   3850  1.1  christos 
   3851  1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3852  1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   3853  1.1  christos       if (elf_find_pointer_linker_section (eh->linker_section_pointer,
   3854  1.1  christos 					   rel->r_addend,
   3855  1.1  christos 					   lsect))
   3856  1.1  christos 	return TRUE;
   3857  1.1  christos 
   3858  1.1  christos       ptr_linker_section_ptr = &eh->linker_section_pointer;
   3859  1.1  christos     }
   3860  1.1  christos   else
   3861  1.1  christos     {
   3862  1.1  christos       BFD_ASSERT (is_ppc_elf (abfd));
   3863  1.1  christos 
   3864  1.1  christos       /* Allocation of a pointer to a local symbol.  */
   3865  1.1  christos       elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
   3866  1.1  christos 
   3867  1.1  christos       /* Allocate a table to hold the local symbols if first time.  */
   3868  1.1  christos       if (!ptr)
   3869  1.1  christos 	{
   3870  1.1  christos 	  unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
   3871  1.1  christos 
   3872  1.1  christos 	  amt = num_symbols;
   3873  1.1  christos 	  amt *= sizeof (elf_linker_section_pointers_t *);
   3874  1.1  christos 	  ptr = bfd_zalloc (abfd, amt);
   3875  1.1  christos 
   3876  1.1  christos 	  if (!ptr)
   3877  1.1  christos 	    return FALSE;
   3878  1.1  christos 
   3879  1.1  christos 	  elf_local_ptr_offsets (abfd) = ptr;
   3880  1.1  christos 	}
   3881  1.1  christos 
   3882  1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3883  1.1  christos       if (elf_find_pointer_linker_section (ptr[r_symndx],
   3884  1.1  christos 					   rel->r_addend,
   3885  1.1  christos 					   lsect))
   3886  1.1  christos 	return TRUE;
   3887  1.1  christos 
   3888  1.1  christos       ptr_linker_section_ptr = &ptr[r_symndx];
   3889  1.1  christos     }
   3890  1.1  christos 
   3891  1.1  christos   /* Allocate space for a pointer in the linker section, and allocate
   3892  1.1  christos      a new pointer record from internal memory.  */
   3893  1.1  christos   BFD_ASSERT (ptr_linker_section_ptr != NULL);
   3894  1.1  christos   amt = sizeof (elf_linker_section_pointers_t);
   3895  1.1  christos   linker_section_ptr = bfd_alloc (abfd, amt);
   3896  1.1  christos 
   3897  1.1  christos   if (!linker_section_ptr)
   3898  1.3  christos     return FALSE;
   3899  1.3  christos 
   3900  1.1  christos   linker_section_ptr->next = *ptr_linker_section_ptr;
   3901  1.1  christos   linker_section_ptr->addend = rel->r_addend;
   3902  1.1  christos   linker_section_ptr->lsect = lsect;
   3903  1.1  christos   *ptr_linker_section_ptr = linker_section_ptr;
   3904  1.1  christos 
   3905  1.1  christos   if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2))
   3906  1.1  christos     return FALSE;
   3907  1.1  christos   linker_section_ptr->offset = lsect->section->size;
   3908  1.1  christos   lsect->section->size += 4;
   3909  1.1  christos 
   3910  1.1  christos #ifdef DEBUG
   3911  1.1  christos   fprintf (stderr,
   3912  1.1  christos 	   "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
   3913  1.1  christos 	   lsect->name, (long) linker_section_ptr->offset,
   3914  1.1  christos 	   (long) lsect->section->size);
   3915  1.1  christos #endif
   3916  1.1  christos 
   3917  1.1  christos   return TRUE;
   3918  1.1  christos }
   3919  1.1  christos 
   3920  1.1  christos static struct plt_entry **
   3921  1.7  christos update_local_sym_info (bfd *abfd,
   3922  1.1  christos 		       Elf_Internal_Shdr *symtab_hdr,
   3923  1.1  christos 		       unsigned long r_symndx,
   3924  1.1  christos 		       int tls_type)
   3925  1.1  christos {
   3926  1.1  christos   bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
   3927  1.1  christos   struct plt_entry **local_plt;
   3928  1.1  christos   unsigned char *local_got_tls_masks;
   3929  1.1  christos 
   3930  1.1  christos   if (local_got_refcounts == NULL)
   3931  1.1  christos     {
   3932  1.1  christos       bfd_size_type size = symtab_hdr->sh_info;
   3933  1.1  christos 
   3934  1.1  christos       size *= (sizeof (*local_got_refcounts)
   3935  1.1  christos 	       + sizeof (*local_plt)
   3936  1.1  christos 	       + sizeof (*local_got_tls_masks));
   3937  1.7  christos       local_got_refcounts = bfd_zalloc (abfd, size);
   3938  1.7  christos       if (local_got_refcounts == NULL)
   3939  1.7  christos 	return NULL;
   3940  1.1  christos       elf_local_got_refcounts (abfd) = local_got_refcounts;
   3941  1.1  christos     }
   3942  1.1  christos 
   3943  1.1  christos   local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
   3944  1.1  christos   local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info);
   3945  1.1  christos   local_got_tls_masks[r_symndx] |= tls_type & 0xff;
   3946  1.1  christos   if ((tls_type & NON_GOT) == 0)
   3947  1.1  christos     local_got_refcounts[r_symndx] += 1;
   3948  1.1  christos   return local_plt + r_symndx;
   3949  1.1  christos }
   3950  1.1  christos 
   3951  1.1  christos static bfd_boolean
   3952  1.1  christos update_plt_info (bfd *abfd, struct plt_entry **plist,
   3953  1.1  christos 		 asection *sec, bfd_vma addend)
   3954  1.1  christos {
   3955  1.1  christos   struct plt_entry *ent;
   3956  1.1  christos 
   3957  1.1  christos   if (addend < 32768)
   3958  1.1  christos     sec = NULL;
   3959  1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3960  1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3961  1.1  christos       break;
   3962  1.1  christos   if (ent == NULL)
   3963  1.1  christos     {
   3964  1.1  christos       bfd_size_type amt = sizeof (*ent);
   3965  1.1  christos       ent = bfd_alloc (abfd, amt);
   3966  1.1  christos       if (ent == NULL)
   3967  1.1  christos 	return FALSE;
   3968  1.1  christos       ent->next = *plist;
   3969  1.1  christos       ent->sec = sec;
   3970  1.1  christos       ent->addend = addend;
   3971  1.1  christos       ent->plt.refcount = 0;
   3972  1.1  christos       *plist = ent;
   3973  1.1  christos     }
   3974  1.1  christos   ent->plt.refcount += 1;
   3975  1.1  christos   return TRUE;
   3976  1.1  christos }
   3977  1.1  christos 
   3978  1.1  christos static struct plt_entry *
   3979  1.1  christos find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
   3980  1.1  christos {
   3981  1.1  christos   struct plt_entry *ent;
   3982  1.1  christos 
   3983  1.1  christos   if (addend < 32768)
   3984  1.1  christos     sec = NULL;
   3985  1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3986  1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3987  1.1  christos       break;
   3988  1.1  christos   return ent;
   3989  1.1  christos }
   3990  1.1  christos 
   3991  1.1  christos static bfd_boolean
   3992  1.1  christos is_branch_reloc (enum elf_ppc_reloc_type r_type)
   3993  1.1  christos {
   3994  1.1  christos   return (r_type == R_PPC_PLTREL24
   3995  1.1  christos 	  || r_type == R_PPC_LOCAL24PC
   3996  1.7  christos 	  || r_type == R_PPC_REL24
   3997  1.7  christos 	  || r_type == R_PPC_REL14
   3998  1.7  christos 	  || r_type == R_PPC_REL14_BRTAKEN
   3999  1.7  christos 	  || r_type == R_PPC_REL14_BRNTAKEN
   4000  1.7  christos 	  || r_type == R_PPC_ADDR24
   4001  1.7  christos 	  || r_type == R_PPC_ADDR14
   4002  1.7  christos 	  || r_type == R_PPC_ADDR14_BRTAKEN
   4003  1.7  christos 	  || r_type == R_PPC_ADDR14_BRNTAKEN
   4004  1.7  christos 	  || r_type == R_PPC_VLE_REL24);
   4005  1.7  christos }
   4006  1.7  christos 
   4007  1.7  christos /* Relocs on inline plt call sequence insns prior to the call.  */
   4008  1.7  christos 
   4009  1.1  christos static bfd_boolean
   4010  1.1  christos is_plt_seq_reloc (enum elf_ppc_reloc_type r_type)
   4011  1.1  christos {
   4012  1.1  christos   return (r_type == R_PPC_PLT16_HA
   4013  1.1  christos 	  || r_type == R_PPC_PLT16_HI
   4014  1.7  christos 	  || r_type == R_PPC_PLT16_LO
   4015  1.7  christos 	  || r_type == R_PPC_PLTSEQ);
   4016  1.7  christos }
   4017  1.1  christos 
   4018  1.1  christos static void
   4019  1.1  christos bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
   4020  1.1  christos {
   4021  1.1  christos   _bfd_error_handler
   4022  1.1  christos     /* xgettext:c-format */
   4023  1.1  christos     (_("%pB: relocation %s cannot be used when making a shared object"),
   4024  1.1  christos      abfd,
   4025  1.1  christos      ppc_elf_howto_table[r_type]->name);
   4026  1.1  christos   bfd_set_error (bfd_error_bad_value);
   4027  1.1  christos }
   4028  1.1  christos 
   4029  1.1  christos /* Look through the relocs for a section during the first phase, and
   4030  1.1  christos    allocate space in the global offset table or procedure linkage
   4031  1.1  christos    table.  */
   4032  1.1  christos 
   4033  1.1  christos static bfd_boolean
   4034  1.1  christos ppc_elf_check_relocs (bfd *abfd,
   4035  1.1  christos 		      struct bfd_link_info *info,
   4036  1.1  christos 		      asection *sec,
   4037  1.1  christos 		      const Elf_Internal_Rela *relocs)
   4038  1.1  christos {
   4039  1.1  christos   struct ppc_elf_link_hash_table *htab;
   4040  1.3  christos   Elf_Internal_Shdr *symtab_hdr;
   4041  1.1  christos   struct elf_link_hash_entry **sym_hashes;
   4042  1.1  christos   const Elf_Internal_Rela *rel;
   4043  1.1  christos   const Elf_Internal_Rela *rel_end;
   4044  1.1  christos   asection *got2, *sreloc;
   4045  1.1  christos   struct elf_link_hash_entry *tga;
   4046  1.1  christos 
   4047  1.1  christos   if (bfd_link_relocatable (info))
   4048  1.1  christos     return TRUE;
   4049  1.1  christos 
   4050  1.1  christos   /* Don't do anything special with non-loaded, non-alloced sections.
   4051  1.1  christos      In particular, any relocs in such sections should not affect GOT
   4052  1.1  christos      and PLT reference counting (ie. we don't allow them to create GOT
   4053  1.7  christos      or PLT entries), there's no possibility or desire to optimize TLS
   4054  1.1  christos      relocs, and there's not much point in propagating relocs to shared
   4055  1.1  christos      libs that the dynamic linker won't relocate.  */
   4056  1.1  christos   if ((sec->flags & SEC_ALLOC) == 0)
   4057  1.1  christos     return TRUE;
   4058  1.1  christos 
   4059  1.1  christos #ifdef DEBUG
   4060  1.1  christos   _bfd_error_handler ("ppc_elf_check_relocs called for section %pA in %pB",
   4061  1.1  christos 		      sec, abfd);
   4062  1.1  christos #endif
   4063  1.1  christos 
   4064  1.1  christos   BFD_ASSERT (is_ppc_elf (abfd));
   4065  1.1  christos 
   4066  1.1  christos   /* Initialize howto table if not already done.  */
   4067  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   4068  1.1  christos     ppc_elf_howto_init ();
   4069  1.1  christos 
   4070  1.1  christos   htab = ppc_elf_hash_table (info);
   4071  1.1  christos   if (htab->glink == NULL)
   4072  1.1  christos     {
   4073  1.1  christos       if (htab->elf.dynobj == NULL)
   4074  1.1  christos 	htab->elf.dynobj = abfd;
   4075  1.1  christos       if (!ppc_elf_create_glink (htab->elf.dynobj, info))
   4076  1.1  christos 	return FALSE;
   4077  1.1  christos     }
   4078  1.1  christos   tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   4079  1.1  christos 			      FALSE, FALSE, TRUE);
   4080  1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   4081  1.1  christos   sym_hashes = elf_sym_hashes (abfd);
   4082  1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   4083  1.1  christos   sreloc = NULL;
   4084  1.1  christos 
   4085  1.3  christos   rel_end = relocs + sec->reloc_count;
   4086  1.7  christos   for (rel = relocs; rel < rel_end; rel++)
   4087  1.7  christos     {
   4088  1.1  christos       unsigned long r_symndx;
   4089  1.1  christos       enum elf_ppc_reloc_type r_type;
   4090  1.1  christos       struct elf_link_hash_entry *h;
   4091  1.1  christos       int tls_type;
   4092  1.1  christos       struct plt_entry **ifunc;
   4093  1.1  christos       struct plt_entry **pltent;
   4094  1.1  christos       bfd_vma addend;
   4095  1.1  christos 
   4096  1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   4097  1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   4098  1.1  christos 	h = NULL;
   4099  1.1  christos       else
   4100  1.1  christos 	{
   4101  1.1  christos 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   4102  1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   4103  1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   4104  1.7  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   4105  1.1  christos 	}
   4106  1.1  christos 
   4107  1.1  christos       /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
   4108  1.1  christos 	 This shows up in particular in an R_PPC_ADDR32 in the eabi
   4109  1.1  christos 	 startup code.  */
   4110  1.1  christos       if (h != NULL
   4111  1.1  christos 	  && htab->elf.sgot == NULL
   4112  1.1  christos 	  && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
   4113  1.1  christos 	{
   4114  1.1  christos 	  if (htab->elf.dynobj == NULL)
   4115  1.1  christos 	    htab->elf.dynobj = abfd;
   4116  1.3  christos 	  if (!ppc_elf_create_got (htab->elf.dynobj, info))
   4117  1.1  christos 	    return FALSE;
   4118  1.1  christos 	  BFD_ASSERT (h == htab->elf.hgot);
   4119  1.1  christos 	}
   4120  1.1  christos 
   4121  1.1  christos       tls_type = 0;
   4122  1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   4123  1.1  christos       ifunc = NULL;
   4124  1.3  christos       if (h == NULL && !htab->is_vxworks)
   4125  1.1  christos 	{
   4126  1.3  christos 	  Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4127  1.1  christos 							  abfd, r_symndx);
   4128  1.7  christos 	  if (isym == NULL)
   4129  1.1  christos 	    return FALSE;
   4130  1.1  christos 
   4131  1.1  christos 	  if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
   4132  1.1  christos 	    {
   4133  1.1  christos 	      /* Set PLT_IFUNC flag for this sym, no GOT entry yet.  */
   4134  1.1  christos 	      ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
   4135  1.3  christos 					     NON_GOT | PLT_IFUNC);
   4136  1.7  christos 	      if (ifunc == NULL)
   4137  1.7  christos 		return FALSE;
   4138  1.7  christos 
   4139  1.7  christos 	      /* STT_GNU_IFUNC symbols must have a PLT entry;
   4140  1.1  christos 		 In a non-pie executable even when there are
   4141  1.7  christos 		 no plt calls.  */
   4142  1.3  christos 	      if (!bfd_link_pic (info)
   4143  1.7  christos 		  || is_branch_reloc (r_type)
   4144  1.7  christos 		  || r_type == R_PPC_PLT16_LO
   4145  1.7  christos 		  || r_type == R_PPC_PLT16_HI
   4146  1.7  christos 		  || r_type == R_PPC_PLT16_HA)
   4147  1.7  christos 		{
   4148  1.7  christos 		  addend = 0;
   4149  1.7  christos 		  if (r_type == R_PPC_PLTREL24)
   4150  1.3  christos 		    ppc_elf_tdata (abfd)->makes_plt_call = 1;
   4151  1.3  christos 		  if (bfd_link_pic (info)
   4152  1.1  christos 		      && (r_type == R_PPC_PLTREL24
   4153  1.1  christos 			  || r_type == R_PPC_PLT16_LO
   4154  1.1  christos 			  || r_type == R_PPC_PLT16_HI
   4155  1.1  christos 			  || r_type == R_PPC_PLT16_HA))
   4156  1.1  christos 		    addend = rel->r_addend;
   4157  1.1  christos 		  if (!update_plt_info (abfd, ifunc, got2, addend))
   4158  1.1  christos 		    return FALSE;
   4159  1.1  christos 		}
   4160  1.1  christos 	    }
   4161  1.1  christos 	}
   4162  1.1  christos 
   4163  1.1  christos       if (!htab->is_vxworks
   4164  1.1  christos 	  && is_branch_reloc (r_type)
   4165  1.1  christos 	  && h != NULL
   4166  1.1  christos 	  && h == tga)
   4167  1.1  christos 	{
   4168  1.1  christos 	  if (rel != relocs
   4169  1.1  christos 	      && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
   4170  1.1  christos 		  || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
   4171  1.1  christos 	    /* We have a new-style __tls_get_addr call with a marker
   4172  1.1  christos 	       reloc.  */
   4173  1.1  christos 	    ;
   4174  1.1  christos 	  else
   4175  1.1  christos 	    /* Mark this section as having an old-style call.  */
   4176  1.1  christos 	    sec->has_tls_get_addr_call = 1;
   4177  1.1  christos 	}
   4178  1.7  christos 
   4179  1.7  christos       switch ((int)r_type)
   4180  1.7  christos 	{
   4181  1.7  christos 	case R_PPC_TLSGD:
   4182  1.7  christos 	case R_PPC_TLSLD:
   4183  1.7  christos 	  /* These special tls relocs tie a call to __tls_get_addr with
   4184  1.7  christos 	     its parameter symbol.  */
   4185  1.7  christos 	  if (h != NULL)
   4186  1.7  christos 	    ppc_elf_hash_entry (h)->tls_mask |= TLS_TLS | TLS_MARK;
   4187  1.1  christos 	  else
   4188  1.1  christos 	    if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
   4189  1.1  christos 					NON_GOT | TLS_TLS | TLS_MARK))
   4190  1.1  christos 	      return FALSE;
   4191  1.1  christos 	  break;
   4192  1.1  christos 
   4193  1.1  christos 	case R_PPC_PLTSEQ:
   4194  1.1  christos 	  break;
   4195  1.1  christos 
   4196  1.1  christos 	case R_PPC_GOT_TLSLD16:
   4197  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   4198  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   4199  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   4200  1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   4201  1.1  christos 	  goto dogottls;
   4202  1.1  christos 
   4203  1.1  christos 	case R_PPC_GOT_TLSGD16:
   4204  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   4205  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   4206  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   4207  1.7  christos 	  tls_type = TLS_TLS | TLS_GD;
   4208  1.1  christos 	  goto dogottls;
   4209  1.1  christos 
   4210  1.1  christos 	case R_PPC_GOT_TPREL16:
   4211  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   4212  1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   4213  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   4214  1.1  christos 	  if (bfd_link_dll (info))
   4215  1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4216  1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   4217  1.1  christos 	  goto dogottls;
   4218  1.1  christos 
   4219  1.7  christos 	case R_PPC_GOT_DTPREL16:
   4220  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   4221  1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   4222  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   4223  1.1  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   4224  1.1  christos 	dogottls:
   4225  1.1  christos 	  sec->has_tls_reloc = 1;
   4226  1.1  christos 	  /* Fall through.  */
   4227  1.7  christos 
   4228  1.1  christos 	  /* GOT16 relocations */
   4229  1.1  christos 	case R_PPC_GOT16:
   4230  1.1  christos 	case R_PPC_GOT16_LO:
   4231  1.1  christos 	case R_PPC_GOT16_HI:
   4232  1.1  christos 	case R_PPC_GOT16_HA:
   4233  1.1  christos 	  /* This symbol requires a global offset table entry.  */
   4234  1.1  christos 	  if (htab->elf.sgot == NULL)
   4235  1.1  christos 	    {
   4236  1.1  christos 	      if (htab->elf.dynobj == NULL)
   4237  1.1  christos 		htab->elf.dynobj = abfd;
   4238  1.1  christos 	      if (!ppc_elf_create_got (htab->elf.dynobj, info))
   4239  1.1  christos 		return FALSE;
   4240  1.1  christos 	    }
   4241  1.1  christos 	  if (h != NULL)
   4242  1.1  christos 	    {
   4243  1.1  christos 	      h->got.refcount += 1;
   4244  1.1  christos 	      ppc_elf_hash_entry (h)->tls_mask |= tls_type;
   4245  1.1  christos 	    }
   4246  1.3  christos 	  else
   4247  1.1  christos 	    /* This is a global offset table entry for a local symbol.  */
   4248  1.1  christos 	    if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
   4249  1.1  christos 	      return FALSE;
   4250  1.1  christos 
   4251  1.1  christos 	  /* We may also need a plt entry if the symbol turns out to be
   4252  1.1  christos 	     an ifunc.  */
   4253  1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   4254  1.1  christos 	    {
   4255  1.3  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4256  1.1  christos 		return FALSE;
   4257  1.1  christos 	    }
   4258  1.1  christos 	  break;
   4259  1.1  christos 
   4260  1.3  christos 	  /* Indirect .sdata relocation.  */
   4261  1.3  christos 	case R_PPC_EMB_SDAI16:
   4262  1.3  christos 	  if (bfd_link_pic (info))
   4263  1.1  christos 	    {
   4264  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4265  1.1  christos 	      return FALSE;
   4266  1.1  christos 	    }
   4267  1.1  christos 	  htab->sdata[0].sym->ref_regular = 1;
   4268  1.1  christos 	  if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0],
   4269  1.1  christos 						    h, rel))
   4270  1.1  christos 	    return FALSE;
   4271  1.1  christos 	  if (h != NULL)
   4272  1.1  christos 	    {
   4273  1.3  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4274  1.1  christos 	      h->non_got_ref = TRUE;
   4275  1.1  christos 	    }
   4276  1.1  christos 	  break;
   4277  1.1  christos 
   4278  1.3  christos 	  /* Indirect .sdata2 relocation.  */
   4279  1.3  christos 	case R_PPC_EMB_SDA2I16:
   4280  1.3  christos 	  if (bfd_link_pic (info))
   4281  1.1  christos 	    {
   4282  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4283  1.1  christos 	      return FALSE;
   4284  1.1  christos 	    }
   4285  1.1  christos 	  htab->sdata[1].sym->ref_regular = 1;
   4286  1.1  christos 	  if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1],
   4287  1.1  christos 						    h, rel))
   4288  1.1  christos 	    return FALSE;
   4289  1.3  christos 	  if (h != NULL)
   4290  1.3  christos 	    {
   4291  1.7  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4292  1.3  christos 	      h->non_got_ref = TRUE;
   4293  1.1  christos 	    }
   4294  1.1  christos 	  break;
   4295  1.1  christos 
   4296  1.1  christos 	case R_PPC_SDAREL16:
   4297  1.1  christos 	  htab->sdata[0].sym->ref_regular = 1;
   4298  1.1  christos 	  /* Fall through.  */
   4299  1.1  christos 
   4300  1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   4301  1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   4302  1.1  christos 	case R_PPC_VLE_SDAREL_HI16A:
   4303  1.1  christos 	case R_PPC_VLE_SDAREL_HI16D:
   4304  1.1  christos 	case R_PPC_VLE_SDAREL_HA16A:
   4305  1.1  christos 	case R_PPC_VLE_SDAREL_HA16D:
   4306  1.1  christos 	  if (h != NULL)
   4307  1.1  christos 	    {
   4308  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4309  1.1  christos 	      h->non_got_ref = TRUE;
   4310  1.1  christos 	    }
   4311  1.1  christos 	  break;
   4312  1.1  christos 
   4313  1.1  christos 	case R_PPC_VLE_REL8:
   4314  1.1  christos 	case R_PPC_VLE_REL15:
   4315  1.7  christos 	case R_PPC_VLE_REL24:
   4316  1.1  christos 	case R_PPC_VLE_LO16A:
   4317  1.1  christos 	case R_PPC_VLE_LO16D:
   4318  1.1  christos 	case R_PPC_VLE_HI16A:
   4319  1.3  christos 	case R_PPC_VLE_HI16D:
   4320  1.1  christos 	case R_PPC_VLE_HA16A:
   4321  1.1  christos 	case R_PPC_VLE_HA16D:
   4322  1.1  christos 	case R_PPC_VLE_ADDR20:
   4323  1.1  christos 	  break;
   4324  1.3  christos 
   4325  1.1  christos 	case R_PPC_EMB_SDA2REL:
   4326  1.1  christos 	  if (bfd_link_pic (info))
   4327  1.1  christos 	    {
   4328  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4329  1.1  christos 	      return FALSE;
   4330  1.1  christos 	    }
   4331  1.1  christos 	  htab->sdata[1].sym->ref_regular = 1;
   4332  1.1  christos 	  if (h != NULL)
   4333  1.1  christos 	    {
   4334  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4335  1.1  christos 	      h->non_got_ref = TRUE;
   4336  1.3  christos 	    }
   4337  1.1  christos 	  break;
   4338  1.1  christos 
   4339  1.1  christos 	case R_PPC_VLE_SDA21_LO:
   4340  1.1  christos 	case R_PPC_VLE_SDA21:
   4341  1.1  christos 	case R_PPC_EMB_SDA21:
   4342  1.1  christos 	case R_PPC_EMB_RELSDA:
   4343  1.1  christos 	  if (bfd_link_pic (info))
   4344  1.1  christos 	    {
   4345  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4346  1.1  christos 	      return FALSE;
   4347  1.1  christos 	    }
   4348  1.1  christos 	  if (h != NULL)
   4349  1.1  christos 	    {
   4350  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4351  1.1  christos 	      h->non_got_ref = TRUE;
   4352  1.1  christos 	    }
   4353  1.3  christos 	  break;
   4354  1.1  christos 
   4355  1.1  christos 	case R_PPC_EMB_NADDR32:
   4356  1.1  christos 	case R_PPC_EMB_NADDR16:
   4357  1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   4358  1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   4359  1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   4360  1.1  christos 	  if (bfd_link_pic (info))
   4361  1.1  christos 	    {
   4362  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4363  1.1  christos 	      return FALSE;
   4364  1.1  christos 	    }
   4365  1.7  christos 	  if (h != NULL)
   4366  1.7  christos 	    h->non_got_ref = TRUE;
   4367  1.7  christos 	  break;
   4368  1.7  christos 
   4369  1.7  christos 	case R_PPC_PLTREL24:
   4370  1.7  christos 	  if (h == NULL)
   4371  1.7  christos 	    break;
   4372  1.1  christos 	  ppc_elf_tdata (abfd)->makes_plt_call = 1;
   4373  1.1  christos 	  goto pltentry;
   4374  1.1  christos 
   4375  1.1  christos 	case R_PPC_PLTCALL:
   4376  1.1  christos 	  sec->has_pltcall = 1;
   4377  1.7  christos 	  /* Fall through.  */
   4378  1.1  christos 
   4379  1.1  christos 	case R_PPC_PLT32:
   4380  1.1  christos 	case R_PPC_PLTREL32:
   4381  1.3  christos 	case R_PPC_PLT16_LO:
   4382  1.1  christos 	case R_PPC_PLT16_HI:
   4383  1.1  christos 	case R_PPC_PLT16_HA:
   4384  1.7  christos 	pltentry:
   4385  1.7  christos #ifdef DEBUG
   4386  1.7  christos 	  fprintf (stderr, "Reloc requires a PLT entry\n");
   4387  1.7  christos #endif
   4388  1.7  christos 	  /* This symbol requires a procedure linkage table entry.  */
   4389  1.7  christos 	  if (h == NULL)
   4390  1.1  christos 	    {
   4391  1.7  christos 	      pltent = update_local_sym_info (abfd, symtab_hdr, r_symndx,
   4392  1.7  christos 					      NON_GOT | PLT_KEEP);
   4393  1.1  christos 	      if (pltent == NULL)
   4394  1.7  christos 		return FALSE;
   4395  1.1  christos 	    }
   4396  1.7  christos 	  else
   4397  1.7  christos 	    {
   4398  1.7  christos 	      if (r_type != R_PPC_PLTREL24)
   4399  1.7  christos 		ppc_elf_hash_entry (h)->tls_mask |= PLT_KEEP;
   4400  1.7  christos 	      h->needs_plt = 1;
   4401  1.7  christos 	      pltent = &h->plt.plist;
   4402  1.7  christos 	    }
   4403  1.7  christos 	  addend = 0;
   4404  1.7  christos 	  if (bfd_link_pic (info)
   4405  1.1  christos 	      && (r_type == R_PPC_PLTREL24
   4406  1.1  christos 		  || r_type == R_PPC_PLT16_LO
   4407  1.1  christos 		  || r_type == R_PPC_PLT16_HI
   4408  1.1  christos 		  || r_type == R_PPC_PLT16_HA))
   4409  1.1  christos 	    addend = rel->r_addend;
   4410  1.1  christos 	  if (!update_plt_info (abfd, pltent, got2, addend))
   4411  1.1  christos 	    return FALSE;
   4412  1.1  christos 	  break;
   4413  1.1  christos 
   4414  1.1  christos 	  /* The following relocations don't need to propagate the
   4415  1.1  christos 	     relocation if linking a shared object since they are
   4416  1.1  christos 	     section relative.  */
   4417  1.1  christos 	case R_PPC_SECTOFF:
   4418  1.1  christos 	case R_PPC_SECTOFF_LO:
   4419  1.1  christos 	case R_PPC_SECTOFF_HI:
   4420  1.1  christos 	case R_PPC_SECTOFF_HA:
   4421  1.1  christos 	case R_PPC_DTPREL16:
   4422  1.1  christos 	case R_PPC_DTPREL16_LO:
   4423  1.1  christos 	case R_PPC_DTPREL16_HI:
   4424  1.1  christos 	case R_PPC_DTPREL16_HA:
   4425  1.3  christos 	case R_PPC_TOC16:
   4426  1.1  christos 	  break;
   4427  1.1  christos 
   4428  1.1  christos 	case R_PPC_REL16:
   4429  1.1  christos 	case R_PPC_REL16_LO:
   4430  1.1  christos 	case R_PPC_REL16_HI:
   4431  1.1  christos 	case R_PPC_REL16_HA:
   4432  1.1  christos 	case R_PPC_REL16DX_HA:
   4433  1.1  christos 	  ppc_elf_tdata (abfd)->has_rel16 = 1;
   4434  1.1  christos 	  break;
   4435  1.1  christos 
   4436  1.1  christos 	  /* These are just markers.  */
   4437  1.7  christos 	case R_PPC_TLS:
   4438  1.1  christos 	case R_PPC_EMB_MRKREF:
   4439  1.1  christos 	case R_PPC_NONE:
   4440  1.1  christos 	case R_PPC_max:
   4441  1.1  christos 	case R_PPC_RELAX:
   4442  1.1  christos 	case R_PPC_RELAX_PLT:
   4443  1.1  christos 	case R_PPC_RELAX_PLTREL24:
   4444  1.1  christos 	case R_PPC_16DX_HA:
   4445  1.1  christos 	  break;
   4446  1.1  christos 
   4447  1.1  christos 	  /* These should only appear in dynamic objects.  */
   4448  1.1  christos 	case R_PPC_COPY:
   4449  1.1  christos 	case R_PPC_GLOB_DAT:
   4450  1.1  christos 	case R_PPC_JMP_SLOT:
   4451  1.1  christos 	case R_PPC_RELATIVE:
   4452  1.1  christos 	case R_PPC_IRELATIVE:
   4453  1.1  christos 	  break;
   4454  1.1  christos 
   4455  1.1  christos 	  /* These aren't handled yet.  We'll report an error later.  */
   4456  1.1  christos 	case R_PPC_ADDR30:
   4457  1.1  christos 	case R_PPC_EMB_RELSEC16:
   4458  1.1  christos 	case R_PPC_EMB_RELST_LO:
   4459  1.1  christos 	case R_PPC_EMB_RELST_HI:
   4460  1.1  christos 	case R_PPC_EMB_RELST_HA:
   4461  1.1  christos 	case R_PPC_EMB_BIT_FLD:
   4462  1.1  christos 	  break;
   4463  1.1  christos 
   4464  1.3  christos 	  /* This refers only to functions defined in the shared library.  */
   4465  1.3  christos 	case R_PPC_LOCAL24PC:
   4466  1.3  christos 	  if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
   4467  1.3  christos 	    {
   4468  1.3  christos 	      htab->plt_type = PLT_OLD;
   4469  1.3  christos 	      htab->old_bfd = abfd;
   4470  1.1  christos 	    }
   4471  1.1  christos 	  if (h != NULL && h->type == STT_GNU_IFUNC)
   4472  1.1  christos 	    {
   4473  1.1  christos 	      h->needs_plt = 1;
   4474  1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4475  1.1  christos 		return FALSE;
   4476  1.1  christos 	    }
   4477  1.1  christos 	  break;
   4478  1.1  christos 
   4479  1.1  christos 	  /* This relocation describes the C++ object vtable hierarchy.
   4480  1.1  christos 	     Reconstruct it for later use during GC.  */
   4481  1.1  christos 	case R_PPC_GNU_VTINHERIT:
   4482  1.1  christos 	  if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
   4483  1.1  christos 	    return FALSE;
   4484  1.1  christos 	  break;
   4485  1.1  christos 
   4486  1.1  christos 	  /* This relocation describes which C++ vtable entries are actually
   4487  1.1  christos 	     used.  Record for later use during GC.  */
   4488  1.7  christos 	case R_PPC_GNU_VTENTRY:
   4489  1.1  christos 	  BFD_ASSERT (h != NULL);
   4490  1.1  christos 	  if (h != NULL
   4491  1.1  christos 	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
   4492  1.1  christos 	    return FALSE;
   4493  1.1  christos 	  break;
   4494  1.7  christos 
   4495  1.1  christos 	  /* We shouldn't really be seeing TPREL32.  */
   4496  1.1  christos 	case R_PPC_TPREL32:
   4497  1.1  christos 	case R_PPC_TPREL16:
   4498  1.1  christos 	case R_PPC_TPREL16_LO:
   4499  1.1  christos 	case R_PPC_TPREL16_HI:
   4500  1.1  christos 	case R_PPC_TPREL16_HA:
   4501  1.1  christos 	  if (bfd_link_dll (info))
   4502  1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4503  1.1  christos 	  goto dodyn;
   4504  1.1  christos 
   4505  1.1  christos 	  /* Nor these.  */
   4506  1.1  christos 	case R_PPC_DTPMOD32:
   4507  1.3  christos 	case R_PPC_DTPREL32:
   4508  1.1  christos 	  goto dodyn;
   4509  1.1  christos 
   4510  1.1  christos 	case R_PPC_REL32:
   4511  1.1  christos 	  if (h == NULL
   4512  1.1  christos 	      && got2 != NULL
   4513  1.1  christos 	      && (sec->flags & SEC_CODE) != 0
   4514  1.1  christos 	      && bfd_link_pic (info)
   4515  1.1  christos 	      && htab->plt_type == PLT_UNSET)
   4516  1.1  christos 	    {
   4517  1.1  christos 	      /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
   4518  1.1  christos 		 the start of a function, which assembles to a REL32
   4519  1.1  christos 		 reference to .got2.  If we detect one of these, then
   4520  1.1  christos 		 force the old PLT layout because the linker cannot
   4521  1.1  christos 		 reliably deduce the GOT pointer value needed for
   4522  1.1  christos 		 PLT call stubs.  */
   4523  1.1  christos 	      asection *s;
   4524  1.1  christos 	      Elf_Internal_Sym *isym;
   4525  1.1  christos 
   4526  1.1  christos 	      isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4527  1.1  christos 					    abfd, r_symndx);
   4528  1.1  christos 	      if (isym == NULL)
   4529  1.1  christos 		return FALSE;
   4530  1.1  christos 
   4531  1.1  christos 	      s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4532  1.1  christos 	      if (s == got2)
   4533  1.1  christos 		{
   4534  1.1  christos 		  htab->plt_type = PLT_OLD;
   4535  1.1  christos 		  htab->old_bfd = abfd;
   4536  1.1  christos 		}
   4537  1.1  christos 	    }
   4538  1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   4539  1.1  christos 	    break;
   4540  1.1  christos 	  /* fall through */
   4541  1.1  christos 
   4542  1.3  christos 	case R_PPC_ADDR32:
   4543  1.1  christos 	case R_PPC_ADDR16:
   4544  1.1  christos 	case R_PPC_ADDR16_LO:
   4545  1.1  christos 	case R_PPC_ADDR16_HI:
   4546  1.1  christos 	case R_PPC_ADDR16_HA:
   4547  1.1  christos 	case R_PPC_UADDR32:
   4548  1.1  christos 	case R_PPC_UADDR16:
   4549  1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   4550  1.1  christos 	    {
   4551  1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4552  1.3  christos 		 a function defined in a dynamic object.  */
   4553  1.3  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4554  1.3  christos 		return FALSE;
   4555  1.3  christos 
   4556  1.1  christos 	      /* We may need a copy reloc too.  */
   4557  1.1  christos 	      h->non_got_ref = 1;
   4558  1.1  christos 	      h->pointer_equality_needed = 1;
   4559  1.1  christos 	      if (r_type == R_PPC_ADDR16_HA)
   4560  1.1  christos 		ppc_elf_hash_entry (h)->has_addr16_ha = 1;
   4561  1.1  christos 	      if (r_type == R_PPC_ADDR16_LO)
   4562  1.1  christos 		ppc_elf_hash_entry (h)->has_addr16_lo = 1;
   4563  1.1  christos 	    }
   4564  1.1  christos 	  goto dodyn;
   4565  1.1  christos 
   4566  1.1  christos 	case R_PPC_REL24:
   4567  1.1  christos 	case R_PPC_REL14:
   4568  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   4569  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   4570  1.1  christos 	  if (h == NULL)
   4571  1.1  christos 	    break;
   4572  1.1  christos 	  if (h == htab->elf.hgot)
   4573  1.1  christos 	    {
   4574  1.1  christos 	      if (htab->plt_type == PLT_UNSET)
   4575  1.1  christos 		{
   4576  1.1  christos 		  htab->plt_type = PLT_OLD;
   4577  1.1  christos 		  htab->old_bfd = abfd;
   4578  1.1  christos 		}
   4579  1.1  christos 	      break;
   4580  1.3  christos 	    }
   4581  1.1  christos 	  /* fall through */
   4582  1.1  christos 
   4583  1.1  christos 	case R_PPC_ADDR24:
   4584  1.1  christos 	case R_PPC_ADDR14:
   4585  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   4586  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   4587  1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   4588  1.1  christos 	    {
   4589  1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4590  1.1  christos 		 a function defined in a dynamic object.  */
   4591  1.1  christos 	      h->needs_plt = 1;
   4592  1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4593  1.1  christos 		return FALSE;
   4594  1.1  christos 	      break;
   4595  1.1  christos 	    }
   4596  1.1  christos 
   4597  1.1  christos 	dodyn:
   4598  1.1  christos 	  /* If we are creating a shared library, and this is a reloc
   4599  1.1  christos 	     against a global symbol, or a non PC relative reloc
   4600  1.1  christos 	     against a local symbol, then we need to copy the reloc
   4601  1.1  christos 	     into the shared library.  However, if we are linking with
   4602  1.1  christos 	     -Bsymbolic, we do not need to copy a reloc against a
   4603  1.1  christos 	     global symbol which is defined in an object we are
   4604  1.1  christos 	     including in the link (i.e., DEF_REGULAR is set).  At
   4605  1.1  christos 	     this point we have not seen all the input files, so it is
   4606  1.1  christos 	     possible that DEF_REGULAR is not set now but will be set
   4607  1.1  christos 	     later (it is never cleared).  In case of a weak definition,
   4608  1.1  christos 	     DEF_REGULAR may be cleared later by a strong definition in
   4609  1.1  christos 	     a shared library.  We account for that possibility below by
   4610  1.1  christos 	     storing information in the dyn_relocs field of the hash
   4611  1.1  christos 	     table entry.  A similar situation occurs when creating
   4612  1.3  christos 	     shared libraries and symbol visibility changes render the
   4613  1.1  christos 	     symbol local.
   4614  1.1  christos 
   4615  1.3  christos 	     If on the other hand, we are creating an executable, we
   4616  1.1  christos 	     may need to keep relocations for symbols satisfied by a
   4617  1.1  christos 	     dynamic library if we manage to avoid copy relocs for the
   4618  1.1  christos 	     symbol.  */
   4619  1.3  christos 	  if ((bfd_link_pic (info)
   4620  1.1  christos 	       && (must_be_dyn_reloc (info, r_type)
   4621  1.1  christos 		   || (h != NULL
   4622  1.1  christos 		       && (!SYMBOLIC_BIND (info, h)
   4623  1.1  christos 			   || h->root.type == bfd_link_hash_defweak
   4624  1.1  christos 			   || !h->def_regular))))
   4625  1.1  christos 	      || (ELIMINATE_COPY_RELOCS
   4626  1.1  christos 		  && !bfd_link_pic (info)
   4627  1.1  christos 		  && h != NULL
   4628  1.1  christos 		  && (h->root.type == bfd_link_hash_defweak
   4629  1.1  christos 		      || !h->def_regular)))
   4630  1.1  christos 	    {
   4631  1.1  christos #ifdef DEBUG
   4632  1.1  christos 	      fprintf (stderr,
   4633  1.1  christos 		       "ppc_elf_check_relocs needs to "
   4634  1.1  christos 		       "create relocation for %s\n",
   4635  1.1  christos 		       (h && h->root.root.string
   4636  1.1  christos 			? h->root.root.string : "<unknown>"));
   4637  1.1  christos #endif
   4638  1.1  christos 	      if (sreloc == NULL)
   4639  1.1  christos 		{
   4640  1.1  christos 		  if (htab->elf.dynobj == NULL)
   4641  1.1  christos 		    htab->elf.dynobj = abfd;
   4642  1.1  christos 
   4643  1.1  christos 		  sreloc = _bfd_elf_make_dynamic_reloc_section
   4644  1.1  christos 		    (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
   4645  1.1  christos 
   4646  1.1  christos 		  if (sreloc == NULL)
   4647  1.3  christos 		    return FALSE;
   4648  1.3  christos 		}
   4649  1.3  christos 
   4650  1.1  christos 	      /* If this is a global symbol, we count the number of
   4651  1.3  christos 		 relocations we need for this symbol.  */
   4652  1.3  christos 	      if (h != NULL)
   4653  1.3  christos 		{
   4654  1.3  christos 		  struct elf_dyn_relocs *p;
   4655  1.3  christos 		  struct elf_dyn_relocs **rel_head;
   4656  1.3  christos 
   4657  1.3  christos 		  rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
   4658  1.3  christos 		  p = *rel_head;
   4659  1.3  christos 		  if (p == NULL || p->sec != sec)
   4660  1.3  christos 		    {
   4661  1.3  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4662  1.3  christos 		      if (p == NULL)
   4663  1.3  christos 			return FALSE;
   4664  1.3  christos 		      p->next = *rel_head;
   4665  1.3  christos 		      *rel_head = p;
   4666  1.1  christos 		      p->sec = sec;
   4667  1.1  christos 		      p->count = 0;
   4668  1.1  christos 		      p->pc_count = 0;
   4669  1.1  christos 		    }
   4670  1.1  christos 		  p->count += 1;
   4671  1.1  christos 		  if (!must_be_dyn_reloc (info, r_type))
   4672  1.3  christos 		    p->pc_count += 1;
   4673  1.3  christos 		}
   4674  1.3  christos 	      else
   4675  1.1  christos 		{
   4676  1.1  christos 		  /* Track dynamic relocs needed for local syms too.
   4677  1.1  christos 		     We really need local syms available to do this
   4678  1.1  christos 		     easily.  Oh well.  */
   4679  1.1  christos 		  struct ppc_dyn_relocs *p;
   4680  1.1  christos 		  struct ppc_dyn_relocs **rel_head;
   4681  1.1  christos 		  bfd_boolean is_ifunc;
   4682  1.1  christos 		  asection *s;
   4683  1.1  christos 		  void *vpp;
   4684  1.1  christos 		  Elf_Internal_Sym *isym;
   4685  1.1  christos 
   4686  1.1  christos 		  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4687  1.1  christos 						abfd, r_symndx);
   4688  1.1  christos 		  if (isym == NULL)
   4689  1.3  christos 		    return FALSE;
   4690  1.3  christos 
   4691  1.3  christos 		  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4692  1.3  christos 		  if (s == NULL)
   4693  1.3  christos 		    s = sec;
   4694  1.3  christos 
   4695  1.3  christos 		  vpp = &elf_section_data (s)->local_dynrel;
   4696  1.3  christos 		  rel_head = (struct ppc_dyn_relocs **) vpp;
   4697  1.3  christos 		  is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
   4698  1.3  christos 		  p = *rel_head;
   4699  1.3  christos 		  if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
   4700  1.3  christos 		    p = p->next;
   4701  1.3  christos 		  if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
   4702  1.3  christos 		    {
   4703  1.3  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4704  1.3  christos 		      if (p == NULL)
   4705  1.3  christos 			return FALSE;
   4706  1.1  christos 		      p->next = *rel_head;
   4707  1.1  christos 		      *rel_head = p;
   4708  1.1  christos 		      p->sec = sec;
   4709  1.1  christos 		      p->ifunc = is_ifunc;
   4710  1.1  christos 		      p->count = 0;
   4711  1.1  christos 		    }
   4712  1.1  christos 		  p->count += 1;
   4713  1.1  christos 		}
   4714  1.1  christos 	    }
   4715  1.1  christos 
   4716  1.7  christos 	  break;
   4717  1.7  christos 	}
   4718  1.7  christos     }
   4719  1.7  christos 
   4720  1.1  christos   return TRUE;
   4721  1.7  christos }
   4722  1.1  christos 
   4723  1.1  christos /* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD
   4725  1.1  christos    and OBFD, and merge non-conflicting ones.  */
   4726  1.1  christos bfd_boolean
   4727  1.1  christos _bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info)
   4728  1.1  christos {
   4729  1.1  christos   bfd *obfd = info->output_bfd;
   4730  1.1  christos   obj_attribute *in_attr, *in_attrs;
   4731  1.7  christos   obj_attribute *out_attr, *out_attrs;
   4732  1.1  christos   bfd_boolean ret = TRUE;
   4733  1.1  christos 
   4734  1.7  christos   in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
   4735  1.7  christos   out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
   4736  1.7  christos 
   4737  1.7  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
   4738  1.7  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
   4739  1.7  christos 
   4740  1.7  christos   if (in_attr->i != out_attr->i)
   4741  1.7  christos     {
   4742  1.7  christos       int in_fp = in_attr->i & 3;
   4743  1.7  christos       int out_fp = out_attr->i & 3;
   4744  1.7  christos       static bfd *last_fp, *last_ld;
   4745  1.7  christos 
   4746  1.7  christos       if (in_fp == 0)
   4747  1.7  christos 	;
   4748  1.7  christos       else if (out_fp == 0)
   4749  1.7  christos 	{
   4750  1.7  christos 	  out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
   4751  1.7  christos 	  out_attr->i ^= in_fp;
   4752  1.7  christos 	  last_fp = ibfd;
   4753  1.7  christos 	}
   4754  1.7  christos       else if (out_fp != 2 && in_fp == 2)
   4755  1.7  christos 	{
   4756  1.7  christos 	  _bfd_error_handler
   4757  1.7  christos 	    /* xgettext:c-format */
   4758  1.7  christos 	    (_("%pB uses hard float, %pB uses soft float"),
   4759  1.7  christos 	     last_fp, ibfd);
   4760  1.7  christos 	  ret = FALSE;
   4761  1.7  christos 	}
   4762  1.7  christos       else if (out_fp == 2 && in_fp != 2)
   4763  1.7  christos 	{
   4764  1.7  christos 	  _bfd_error_handler
   4765  1.7  christos 	    /* xgettext:c-format */
   4766  1.7  christos 	    (_("%pB uses hard float, %pB uses soft float"),
   4767  1.7  christos 	     ibfd, last_fp);
   4768  1.7  christos 	  ret = FALSE;
   4769  1.7  christos 	}
   4770  1.7  christos       else if (out_fp == 1 && in_fp == 3)
   4771  1.7  christos 	{
   4772  1.7  christos 	  _bfd_error_handler
   4773  1.7  christos 	    /* xgettext:c-format */
   4774  1.7  christos 	    (_("%pB uses double-precision hard float, "
   4775  1.7  christos 	       "%pB uses single-precision hard float"), last_fp, ibfd);
   4776  1.7  christos 	  ret = FALSE;
   4777  1.7  christos 	}
   4778  1.7  christos       else if (out_fp == 3 && in_fp == 1)
   4779  1.7  christos 	{
   4780  1.7  christos 	  _bfd_error_handler
   4781  1.7  christos 	    /* xgettext:c-format */
   4782  1.1  christos 	    (_("%pB uses double-precision hard float, "
   4783  1.7  christos 	       "%pB uses single-precision hard float"), ibfd, last_fp);
   4784  1.7  christos 	  ret = FALSE;
   4785  1.7  christos 	}
   4786  1.7  christos 
   4787  1.7  christos       in_fp = in_attr->i & 0xc;
   4788  1.7  christos       out_fp = out_attr->i & 0xc;
   4789  1.7  christos       if (in_fp == 0)
   4790  1.7  christos 	;
   4791  1.7  christos       else if (out_fp == 0)
   4792  1.7  christos 	{
   4793  1.7  christos 	  out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
   4794  1.7  christos 	  out_attr->i ^= in_fp;
   4795  1.7  christos 	  last_ld = ibfd;
   4796  1.7  christos 	}
   4797  1.7  christos       else if (out_fp != 2 * 4 && in_fp == 2 * 4)
   4798  1.7  christos 	{
   4799  1.7  christos 	  _bfd_error_handler
   4800  1.7  christos 	    /* xgettext:c-format */
   4801  1.7  christos 	    (_("%pB uses 64-bit long double, "
   4802  1.7  christos 	       "%pB uses 128-bit long double"), ibfd, last_ld);
   4803  1.7  christos 	  ret = FALSE;
   4804  1.7  christos 	}
   4805  1.7  christos       else if (in_fp != 2 * 4 && out_fp == 2 * 4)
   4806  1.7  christos 	{
   4807  1.7  christos 	  _bfd_error_handler
   4808  1.7  christos 	    /* xgettext:c-format */
   4809  1.7  christos 	    (_("%pB uses 64-bit long double, "
   4810  1.7  christos 	       "%pB uses 128-bit long double"), last_ld, ibfd);
   4811  1.7  christos 	  ret = FALSE;
   4812  1.7  christos 	}
   4813  1.7  christos       else if (out_fp == 1 * 4 && in_fp == 3 * 4)
   4814  1.7  christos 	{
   4815  1.7  christos 	  _bfd_error_handler
   4816  1.7  christos 	    /* xgettext:c-format */
   4817  1.7  christos 	    (_("%pB uses IBM long double, "
   4818  1.7  christos 	       "%pB uses IEEE long double"), last_ld, ibfd);
   4819  1.7  christos 	  ret = FALSE;
   4820  1.7  christos 	}
   4821  1.7  christos       else if (out_fp == 3 * 4 && in_fp == 1 * 4)
   4822  1.7  christos 	{
   4823  1.7  christos 	  _bfd_error_handler
   4824  1.7  christos 	    /* xgettext:c-format */
   4825  1.7  christos 	    (_("%pB uses IBM long double, "
   4826  1.7  christos 	       "%pB uses IEEE long double"), ibfd, last_ld);
   4827  1.1  christos 	  ret = FALSE;
   4828  1.7  christos 	}
   4829  1.7  christos     }
   4830  1.7  christos 
   4831  1.7  christos   if (!ret)
   4832  1.7  christos     {
   4833  1.7  christos       out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
   4834  1.7  christos       bfd_set_error (bfd_error_bad_value);
   4835  1.7  christos     }
   4836  1.7  christos   return ret;
   4837  1.7  christos }
   4838  1.7  christos 
   4839  1.7  christos /* Merge object attributes from IBFD into OBFD.  Warn if
   4840  1.7  christos    there are conflicting attributes.  */
   4841  1.7  christos static bfd_boolean
   4842  1.7  christos ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
   4843  1.7  christos {
   4844  1.7  christos   bfd *obfd;
   4845  1.7  christos   obj_attribute *in_attr, *in_attrs;
   4846  1.7  christos   obj_attribute *out_attr, *out_attrs;
   4847  1.1  christos   bfd_boolean ret;
   4848  1.1  christos 
   4849  1.1  christos   if (!_bfd_elf_ppc_merge_fp_attributes (ibfd, info))
   4850  1.1  christos     return FALSE;
   4851  1.1  christos 
   4852  1.7  christos   obfd = info->output_bfd;
   4853  1.1  christos   in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
   4854  1.1  christos   out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
   4855  1.7  christos 
   4856  1.7  christos   /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
   4857  1.7  christos      merge non-conflicting ones.  */
   4858  1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
   4859  1.7  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
   4860  1.7  christos   ret = TRUE;
   4861  1.7  christos   if (in_attr->i != out_attr->i)
   4862  1.1  christos     {
   4863  1.7  christos       int in_vec = in_attr->i & 3;
   4864  1.7  christos       int out_vec = out_attr->i & 3;
   4865  1.7  christos       static bfd *last_vec;
   4866  1.1  christos 
   4867  1.1  christos       if (in_vec == 0)
   4868  1.1  christos 	;
   4869  1.1  christos       else if (out_vec == 0)
   4870  1.1  christos 	{
   4871  1.1  christos 	  out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
   4872  1.7  christos 	  out_attr->i = in_vec;
   4873  1.1  christos 	  last_vec = ibfd;
   4874  1.7  christos 	}
   4875  1.7  christos       /* For now, allow generic to transition to AltiVec or SPE
   4876  1.7  christos 	 without a warning.  If GCC marked files with their stack
   4877  1.7  christos 	 alignment and used don't-care markings for files which are
   4878  1.7  christos 	 not affected by the vector ABI, we could warn about this
   4879  1.7  christos 	 case too.  */
   4880  1.7  christos       else if (in_vec == 1)
   4881  1.7  christos 	;
   4882  1.7  christos       else if (out_vec == 1)
   4883  1.7  christos 	{
   4884  1.7  christos 	  out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
   4885  1.7  christos 	  out_attr->i = in_vec;
   4886  1.7  christos 	  last_vec = ibfd;
   4887  1.7  christos 	}
   4888  1.7  christos       else if (out_vec < in_vec)
   4889  1.7  christos 	{
   4890  1.7  christos 	  _bfd_error_handler
   4891  1.7  christos 	    /* xgettext:c-format */
   4892  1.7  christos 	    (_("%pB uses AltiVec vector ABI, %pB uses SPE vector ABI"),
   4893  1.7  christos 	     last_vec, ibfd);
   4894  1.7  christos 	  out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
   4895  1.7  christos 	  ret = FALSE;
   4896  1.7  christos 	}
   4897  1.7  christos       else if (out_vec > in_vec)
   4898  1.1  christos 	{
   4899  1.1  christos 	  _bfd_error_handler
   4900  1.1  christos 	    /* xgettext:c-format */
   4901  1.1  christos 	    (_("%pB uses AltiVec vector ABI, %pB uses SPE vector ABI"),
   4902  1.1  christos 	     ibfd, last_vec);
   4903  1.1  christos 	  out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
   4904  1.1  christos 	  ret = FALSE;
   4905  1.1  christos 	}
   4906  1.7  christos     }
   4907  1.7  christos 
   4908  1.7  christos   /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
   4909  1.7  christos      and merge non-conflicting ones.  */
   4910  1.7  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4911  1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4912  1.7  christos   if (in_attr->i != out_attr->i)
   4913  1.7  christos     {
   4914  1.7  christos       int in_struct = in_attr->i & 3;
   4915  1.7  christos       int out_struct = out_attr->i & 3;
   4916  1.7  christos       static bfd *last_struct;
   4917  1.7  christos 
   4918  1.7  christos       if (in_struct == 0 || in_struct == 3)
   4919  1.7  christos        ;
   4920  1.7  christos       else if (out_struct == 0)
   4921  1.7  christos 	{
   4922  1.7  christos 	  out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
   4923  1.7  christos 	  out_attr->i = in_struct;
   4924  1.7  christos 	  last_struct = ibfd;
   4925  1.7  christos 	}
   4926  1.7  christos       else if (out_struct < in_struct)
   4927  1.7  christos 	{
   4928  1.7  christos 	  _bfd_error_handler
   4929  1.7  christos 	    /* xgettext:c-format */
   4930  1.7  christos 	    (_("%pB uses r3/r4 for small structure returns, "
   4931  1.7  christos 	       "%pB uses memory"), last_struct, ibfd);
   4932  1.7  christos 	  out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
   4933  1.7  christos 	  ret = FALSE;
   4934  1.7  christos 	}
   4935  1.7  christos       else if (out_struct > in_struct)
   4936  1.7  christos 	{
   4937  1.7  christos 	  _bfd_error_handler
   4938  1.7  christos 	    /* xgettext:c-format */
   4939  1.7  christos 	    (_("%pB uses r3/r4 for small structure returns, "
   4940  1.7  christos 	       "%pB uses memory"), ibfd, last_struct);
   4941  1.1  christos 	  out_attr->type = ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_ERROR;
   4942  1.1  christos 	  ret = FALSE;
   4943  1.1  christos 	}
   4944  1.7  christos     }
   4945  1.1  christos   if (!ret)
   4946  1.1  christos     {
   4947  1.1  christos       bfd_set_error (bfd_error_bad_value);
   4948  1.1  christos       return FALSE;
   4949  1.1  christos     }
   4950  1.1  christos 
   4951  1.7  christos   /* Merge Tag_compatibility attributes and any common GNU ones.  */
   4952  1.1  christos   return _bfd_elf_merge_object_attributes (ibfd, info);
   4953  1.7  christos }
   4954  1.1  christos 
   4955  1.1  christos /* Merge backend specific data from an object file to the output
   4956  1.1  christos    object file when linking.  */
   4957  1.1  christos 
   4958  1.1  christos static bfd_boolean
   4959  1.1  christos ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
   4960  1.1  christos {
   4961  1.1  christos   bfd *obfd = info->output_bfd;
   4962  1.7  christos   flagword old_flags;
   4963  1.1  christos   flagword new_flags;
   4964  1.1  christos   bfd_boolean error;
   4965  1.7  christos 
   4966  1.1  christos   if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
   4967  1.1  christos     return TRUE;
   4968  1.1  christos 
   4969  1.1  christos   /* Check if we have the same endianness.  */
   4970  1.1  christos   if (! _bfd_generic_verify_endian_match (ibfd, info))
   4971  1.1  christos     return FALSE;
   4972  1.1  christos 
   4973  1.1  christos   if (!ppc_elf_merge_obj_attributes (ibfd, info))
   4974  1.1  christos     return FALSE;
   4975  1.1  christos 
   4976  1.1  christos   new_flags = elf_elfheader (ibfd)->e_flags;
   4977  1.1  christos   old_flags = elf_elfheader (obfd)->e_flags;
   4978  1.1  christos   if (!elf_flags_init (obfd))
   4979  1.1  christos     {
   4980  1.1  christos       /* First call, no flags set.  */
   4981  1.1  christos       elf_flags_init (obfd) = TRUE;
   4982  1.1  christos       elf_elfheader (obfd)->e_flags = new_flags;
   4983  1.1  christos     }
   4984  1.1  christos 
   4985  1.1  christos   /* Compatible flags are ok.  */
   4986  1.1  christos   else if (new_flags == old_flags)
   4987  1.1  christos     ;
   4988  1.1  christos 
   4989  1.1  christos   /* Incompatible flags.  */
   4990  1.1  christos   else
   4991  1.7  christos     {
   4992  1.7  christos       /* Warn about -mrelocatable mismatch.  Allow -mrelocatable-lib
   4993  1.1  christos 	 to be linked with either.  */
   4994  1.1  christos       error = FALSE;
   4995  1.1  christos       if ((new_flags & EF_PPC_RELOCATABLE) != 0
   4996  1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
   4997  1.1  christos 	{
   4998  1.1  christos 	  error = TRUE;
   4999  1.7  christos 	  _bfd_error_handler
   5000  1.7  christos 	    (_("%pB: compiled with -mrelocatable and linked with "
   5001  1.1  christos 	       "modules compiled normally"), ibfd);
   5002  1.1  christos 	}
   5003  1.1  christos       else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
   5004  1.1  christos 	       && (old_flags & EF_PPC_RELOCATABLE) != 0)
   5005  1.1  christos 	{
   5006  1.1  christos 	  error = TRUE;
   5007  1.1  christos 	  _bfd_error_handler
   5008  1.1  christos 	    (_("%pB: compiled normally and linked with "
   5009  1.1  christos 	       "modules compiled with -mrelocatable"), ibfd);
   5010  1.1  christos 	}
   5011  1.1  christos 
   5012  1.1  christos       /* The output is -mrelocatable-lib iff both the input files are.  */
   5013  1.1  christos       if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
   5014  1.1  christos 	elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
   5015  1.1  christos 
   5016  1.1  christos       /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
   5017  1.1  christos 	 but each input file is either -mrelocatable or -mrelocatable-lib.  */
   5018  1.1  christos       if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
   5019  1.1  christos 	  && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
   5020  1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
   5021  1.1  christos 	elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
   5022  1.1  christos 
   5023  1.1  christos       /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
   5024  1.1  christos 	 any module uses it.  */
   5025  1.1  christos       elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
   5026  1.7  christos 
   5027  1.7  christos       new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   5028  1.7  christos       old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   5029  1.7  christos 
   5030  1.7  christos       /* Warn about any other mismatches.  */
   5031  1.1  christos       if (new_flags != old_flags)
   5032  1.1  christos 	{
   5033  1.1  christos 	  error = TRUE;
   5034  1.1  christos 	  _bfd_error_handler
   5035  1.1  christos 	    /* xgettext:c-format */
   5036  1.1  christos 	    (_("%pB: uses different e_flags (%#x) fields "
   5037  1.1  christos 	       "than previous modules (%#x)"),
   5038  1.1  christos 	     ibfd, new_flags, old_flags);
   5039  1.1  christos 	}
   5040  1.1  christos 
   5041  1.1  christos       if (error)
   5042  1.1  christos 	{
   5043  1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   5044  1.7  christos 	  return FALSE;
   5045  1.7  christos 	}
   5046  1.7  christos     }
   5047  1.7  christos 
   5048  1.3  christos   return TRUE;
   5049  1.7  christos }
   5050  1.7  christos 
   5051  1.7  christos static void
   5052  1.7  christos ppc_elf_vle_split16 (bfd *input_bfd,
   5053  1.7  christos 		     asection *input_section,
   5054  1.7  christos 		     unsigned long offset,
   5055  1.7  christos 		     bfd_byte *loc,
   5056  1.7  christos 		     bfd_vma value,
   5057  1.7  christos 		     split16_format_type split16_format,
   5058  1.7  christos 		     bfd_boolean fixup)
   5059  1.7  christos {
   5060  1.7  christos   unsigned int insn, opcode, top5;
   5061  1.7  christos 
   5062  1.7  christos   insn = bfd_get_32 (input_bfd, loc);
   5063  1.7  christos   opcode = insn & 0xfc00f800;
   5064  1.7  christos   if (opcode == E_OR2I_INSN
   5065  1.7  christos       || opcode == E_AND2I_DOT_INSN
   5066  1.7  christos       || opcode == E_OR2IS_INSN
   5067  1.7  christos       || opcode == E_LIS_INSN
   5068  1.7  christos       || opcode == E_AND2IS_DOT_INSN)
   5069  1.7  christos     {
   5070  1.7  christos       if (split16_format != split16a_type)
   5071  1.7  christos 	{
   5072  1.7  christos 	  if (fixup)
   5073  1.7  christos 	    split16_format = split16a_type;
   5074  1.7  christos 	  else
   5075  1.7  christos 	    _bfd_error_handler
   5076  1.7  christos 	      /* xgettext:c-format */
   5077  1.7  christos 	      (_("%pB(%pA+0x%lx): expected 16A style relocation on 0x%08x insn"),
   5078  1.7  christos 	       input_bfd, input_section, offset, opcode);
   5079  1.7  christos 	}
   5080  1.7  christos     }
   5081  1.7  christos   else if (opcode == E_ADD2I_DOT_INSN
   5082  1.7  christos 	   || opcode == E_ADD2IS_INSN
   5083  1.7  christos 	   || opcode == E_CMP16I_INSN
   5084  1.7  christos 	   || opcode == E_MULL2I_INSN
   5085  1.7  christos 	   || opcode == E_CMPL16I_INSN
   5086  1.7  christos 	   || opcode == E_CMPH16I_INSN
   5087  1.7  christos 	   || opcode == E_CMPHL16I_INSN)
   5088  1.7  christos     {
   5089  1.7  christos       if (split16_format != split16d_type)
   5090  1.7  christos 	{
   5091  1.7  christos 	  if (fixup)
   5092  1.7  christos 	    split16_format = split16d_type;
   5093  1.7  christos 	  else
   5094  1.7  christos 	    _bfd_error_handler
   5095  1.7  christos 	      /* xgettext:c-format */
   5096  1.7  christos 	      (_("%pB(%pA+0x%lx): expected 16D style relocation on 0x%08x insn"),
   5097  1.7  christos 	       input_bfd, input_section, offset, opcode);
   5098  1.7  christos 	}
   5099  1.1  christos     }
   5100  1.7  christos   top5 = value & 0xf800;
   5101  1.7  christos   top5 = top5 << (split16_format == split16a_type ? 5 : 10);
   5102  1.1  christos   insn &= (split16_format == split16a_type ? ~0x1f07ff : ~0x3e007ff);
   5103  1.7  christos   insn |= top5;
   5104  1.1  christos   insn |= value & 0x7ff;
   5105  1.3  christos   bfd_put_32 (input_bfd, insn, loc);
   5106  1.7  christos }
   5107  1.7  christos 
   5108  1.7  christos static void
   5109  1.7  christos ppc_elf_vle_split20 (bfd *output_bfd, bfd_byte *loc, bfd_vma value)
   5110  1.7  christos {
   5111  1.7  christos   unsigned int insn;
   5112  1.3  christos 
   5113  1.3  christos   insn = bfd_get_32 (output_bfd, loc);
   5114  1.1  christos   /* We have an li20 field, bits 17..20, 11..15, 21..31.  */
   5115  1.1  christos   /* Top 4 bits of value to 17..20.  */
   5116  1.1  christos   insn |= (value & 0xf0000) >> 5;
   5117  1.1  christos   /* Next 5 bits of the value to 11..15.  */
   5118  1.1  christos   insn |= (value & 0xf800) << 5;
   5119  1.1  christos   /* And the final 11 bits of the value to bits 21 to 31.  */
   5120  1.1  christos   insn |= value & 0x7ff;
   5121  1.3  christos   bfd_put_32 (output_bfd, insn, loc);
   5122  1.1  christos }
   5123  1.1  christos 
   5124  1.1  christos 
   5125  1.1  christos /* Choose which PLT scheme to use, and set .plt flags appropriately.
   5127  1.1  christos    Returns -1 on error, 0 for old PLT, 1 for new PLT.  */
   5128  1.1  christos int
   5129  1.1  christos ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
   5130  1.1  christos 			   struct bfd_link_info *info)
   5131  1.1  christos {
   5132  1.3  christos   struct ppc_elf_link_hash_table *htab;
   5133  1.1  christos   flagword flags;
   5134  1.3  christos 
   5135  1.1  christos   htab = ppc_elf_hash_table (info);
   5136  1.1  christos 
   5137  1.1  christos   if (htab->plt_type == PLT_UNSET)
   5138  1.1  christos     {
   5139  1.1  christos       struct elf_link_hash_entry *h;
   5140  1.1  christos 
   5141  1.1  christos       if (htab->params->plt_style == PLT_OLD)
   5142  1.7  christos 	htab->plt_type = PLT_OLD;
   5143  1.1  christos       else if (bfd_link_pic (info)
   5144  1.1  christos 	       && htab->elf.dynamic_sections_created
   5145  1.1  christos 	       && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
   5146  1.1  christos 					     FALSE, FALSE, TRUE)) != NULL
   5147  1.1  christos 	       && (h->type == STT_FUNC
   5148  1.1  christos 		   || h->needs_plt)
   5149  1.1  christos 	       && h->ref_regular
   5150  1.1  christos 	       && !(SYMBOL_CALLS_LOCAL (info, h)
   5151  1.1  christos 		    || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
   5152  1.1  christos 	{
   5153  1.3  christos 	  /* Profiling of shared libs (and pies) is not supported with
   5154  1.1  christos 	     secure plt, because ppc32 does profiling before a
   5155  1.1  christos 	     function prologue and a secure plt pic call stubs needs
   5156  1.1  christos 	     r30 to be set up.  */
   5157  1.1  christos 	  htab->plt_type = PLT_OLD;
   5158  1.1  christos 	}
   5159  1.1  christos       else
   5160  1.1  christos 	{
   5161  1.3  christos 	  bfd *ibfd;
   5162  1.1  christos 	  enum ppc_elf_plt_type plt_type = htab->params->plt_style;
   5163  1.1  christos 
   5164  1.1  christos 	  /* Look through the reloc flags left by ppc_elf_check_relocs.
   5165  1.1  christos 	     Use the old style bss plt if a file makes plt calls
   5166  1.1  christos 	     without using the new relocs, and if ld isn't given
   5167  1.1  christos 	     --secure-plt and we never see REL16 relocs.  */
   5168  1.1  christos 	  if (plt_type == PLT_UNSET)
   5169  1.1  christos 	    plt_type = PLT_OLD;
   5170  1.1  christos 	  for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
   5171  1.1  christos 	    if (is_ppc_elf (ibfd))
   5172  1.1  christos 	      {
   5173  1.1  christos 		if (ppc_elf_tdata (ibfd)->has_rel16)
   5174  1.1  christos 		  plt_type = PLT_NEW;
   5175  1.1  christos 		else if (ppc_elf_tdata (ibfd)->makes_plt_call)
   5176  1.3  christos 		  {
   5177  1.1  christos 		    plt_type = PLT_OLD;
   5178  1.1  christos 		    htab->old_bfd = ibfd;
   5179  1.7  christos 		    break;
   5180  1.1  christos 		  }
   5181  1.7  christos 	      }
   5182  1.1  christos 	  htab->plt_type = plt_type;
   5183  1.1  christos 	}
   5184  1.1  christos     }
   5185  1.1  christos   if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW)
   5186  1.1  christos     {
   5187  1.1  christos       if (htab->old_bfd != NULL)
   5188  1.1  christos 	_bfd_error_handler (_("bss-plt forced due to %pB"), htab->old_bfd);
   5189  1.1  christos       else
   5190  1.1  christos 	_bfd_error_handler (_("bss-plt forced by profiling"));
   5191  1.1  christos     }
   5192  1.7  christos 
   5193  1.7  christos   BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
   5194  1.1  christos 
   5195  1.1  christos   if (htab->plt_type == PLT_NEW)
   5196  1.1  christos     {
   5197  1.7  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
   5198  1.7  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   5199  1.1  christos 
   5200  1.1  christos       /* The new PLT is a loaded section.  */
   5201  1.1  christos       if (htab->elf.splt != NULL
   5202  1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.splt, flags))
   5203  1.1  christos 	return -1;
   5204  1.1  christos 
   5205  1.1  christos       /* The new GOT is not executable.  */
   5206  1.1  christos       if (htab->elf.sgot != NULL
   5207  1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->elf.sgot, flags))
   5208  1.1  christos 	return -1;
   5209  1.1  christos     }
   5210  1.1  christos   else
   5211  1.1  christos     {
   5212  1.1  christos       /* Stop an unused .glink section from affecting .text alignment.  */
   5213  1.1  christos       if (htab->glink != NULL
   5214  1.1  christos 	  && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
   5215  1.1  christos 	return -1;
   5216  1.1  christos     }
   5217  1.1  christos   return htab->plt_type == PLT_NEW;
   5218  1.1  christos }
   5219  1.1  christos 
   5220  1.1  christos /* Return the section that should be marked against GC for a given
   5222  1.1  christos    relocation.  */
   5223  1.1  christos 
   5224  1.1  christos static asection *
   5225  1.1  christos ppc_elf_gc_mark_hook (asection *sec,
   5226  1.1  christos 		      struct bfd_link_info *info,
   5227  1.1  christos 		      Elf_Internal_Rela *rel,
   5228  1.1  christos 		      struct elf_link_hash_entry *h,
   5229  1.1  christos 		      Elf_Internal_Sym *sym)
   5230  1.1  christos {
   5231  1.1  christos   if (h != NULL)
   5232  1.1  christos     switch (ELF32_R_TYPE (rel->r_info))
   5233  1.7  christos       {
   5234  1.7  christos       case R_PPC_GNU_VTINHERIT:
   5235  1.7  christos       case R_PPC_GNU_VTENTRY:
   5236  1.7  christos 	return NULL;
   5237  1.7  christos       }
   5238  1.7  christos 
   5239  1.7  christos   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
   5240  1.1  christos }
   5241  1.7  christos 
   5242  1.1  christos static bfd_boolean
   5243  1.7  christos get_sym_h (struct elf_link_hash_entry **hp,
   5244  1.7  christos 	   Elf_Internal_Sym **symp,
   5245  1.7  christos 	   asection **symsecp,
   5246  1.7  christos 	   unsigned char **tls_maskp,
   5247  1.1  christos 	   Elf_Internal_Sym **locsymsp,
   5248  1.7  christos 	   unsigned long r_symndx,
   5249  1.7  christos 	   bfd *ibfd)
   5250  1.7  christos {
   5251  1.7  christos   Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5252  1.1  christos 
   5253  1.7  christos   if (r_symndx >= symtab_hdr->sh_info)
   5254  1.7  christos     {
   5255  1.1  christos       struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
   5256  1.7  christos       struct elf_link_hash_entry *h;
   5257  1.7  christos 
   5258  1.1  christos       h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5259  1.7  christos       while (h->root.type == bfd_link_hash_indirect
   5260  1.1  christos 	     || h->root.type == bfd_link_hash_warning)
   5261  1.7  christos 	h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5262  1.7  christos 
   5263  1.7  christos       if (hp != NULL)
   5264  1.7  christos 	*hp = h;
   5265  1.7  christos 
   5266  1.1  christos       if (symp != NULL)
   5267  1.1  christos 	*symp = NULL;
   5268  1.7  christos 
   5269  1.7  christos       if (symsecp != NULL)
   5270  1.7  christos 	{
   5271  1.7  christos 	  asection *symsec = NULL;
   5272  1.7  christos 	  if (h->root.type == bfd_link_hash_defined
   5273  1.7  christos 	      || h->root.type == bfd_link_hash_defweak)
   5274  1.7  christos 	    symsec = h->root.u.def.section;
   5275  1.1  christos 	  *symsecp = symsec;
   5276  1.7  christos 	}
   5277  1.7  christos 
   5278  1.7  christos       if (tls_maskp != NULL)
   5279  1.7  christos 	*tls_maskp = &ppc_elf_hash_entry (h)->tls_mask;
   5280  1.7  christos     }
   5281  1.7  christos   else
   5282  1.7  christos     {
   5283  1.7  christos       Elf_Internal_Sym *sym;
   5284  1.7  christos       Elf_Internal_Sym *locsyms = *locsymsp;
   5285  1.7  christos 
   5286  1.1  christos       if (locsyms == NULL)
   5287  1.7  christos 	{
   5288  1.1  christos 	  locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
   5289  1.7  christos 	  if (locsyms == NULL)
   5290  1.7  christos 	    locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
   5291  1.1  christos 					    symtab_hdr->sh_info,
   5292  1.7  christos 					    0, NULL, NULL, NULL);
   5293  1.7  christos 	  if (locsyms == NULL)
   5294  1.1  christos 	    return FALSE;
   5295  1.7  christos 	  *locsymsp = locsyms;
   5296  1.7  christos 	}
   5297  1.1  christos       sym = locsyms + r_symndx;
   5298  1.7  christos 
   5299  1.7  christos       if (hp != NULL)
   5300  1.7  christos 	*hp = NULL;
   5301  1.7  christos 
   5302  1.1  christos       if (symp != NULL)
   5303  1.7  christos 	*symp = sym;
   5304  1.7  christos 
   5305  1.7  christos       if (symsecp != NULL)
   5306  1.1  christos 	*symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx);
   5307  1.7  christos 
   5308  1.7  christos       if (tls_maskp != NULL)
   5309  1.7  christos 	{
   5310  1.7  christos 	  bfd_signed_vma *local_got;
   5311  1.7  christos 	  unsigned char *tls_mask;
   5312  1.1  christos 
   5313  1.7  christos 	  tls_mask = NULL;
   5314  1.1  christos 	  local_got = elf_local_got_refcounts (ibfd);
   5315  1.1  christos 	  if (local_got != NULL)
   5316  1.1  christos 	    {
   5317  1.1  christos 	      struct plt_entry **local_plt = (struct plt_entry **)
   5318  1.1  christos 		(local_got + symtab_hdr->sh_info);
   5319  1.7  christos 	      unsigned char *lgot_masks = (unsigned char *)
   5320  1.7  christos 		(local_plt + symtab_hdr->sh_info);
   5321  1.1  christos 	      tls_mask = &lgot_masks[r_symndx];
   5322  1.7  christos 	    }
   5323  1.7  christos 	  *tls_maskp = tls_mask;
   5324  1.1  christos 	}
   5325  1.1  christos     }
   5326  1.7  christos   return TRUE;
   5327  1.7  christos }
   5328  1.7  christos 
   5329  1.1  christos /* Analyze inline PLT call relocations to see whether calls to locally
   5331  1.7  christos    defined functions can be converted to direct calls.  */
   5332  1.7  christos 
   5333  1.7  christos bfd_boolean
   5334  1.7  christos ppc_elf_inline_plt (struct bfd_link_info *info)
   5335  1.7  christos {
   5336  1.7  christos   struct ppc_elf_link_hash_table *htab;
   5337  1.7  christos   bfd *ibfd;
   5338  1.7  christos   asection *sec;
   5339  1.7  christos   bfd_vma low_vma, high_vma, limit;
   5340  1.7  christos 
   5341  1.7  christos   htab = ppc_elf_hash_table (info);
   5342  1.7  christos   if (htab == NULL)
   5343  1.7  christos     return FALSE;
   5344  1.7  christos 
   5345  1.7  christos   /* A bl insn can reach -0x2000000 to 0x1fffffc.  The limit is
   5346  1.7  christos      reduced somewhat to cater for possible stubs that might be added
   5347  1.7  christos      between the call and its destination.  */
   5348  1.3  christos   limit = 0x1e00000;
   5349  1.7  christos   low_vma = -1;
   5350  1.7  christos   high_vma = 0;
   5351  1.7  christos   for (sec = info->output_bfd->sections; sec != NULL; sec = sec->next)
   5352  1.7  christos     if ((sec->flags & (SEC_ALLOC | SEC_CODE)) == (SEC_ALLOC | SEC_CODE))
   5353  1.7  christos       {
   5354  1.7  christos 	if (low_vma > sec->vma)
   5355  1.7  christos 	  low_vma = sec->vma;
   5356  1.7  christos 	if (high_vma < sec->vma + sec->size)
   5357  1.7  christos 	  high_vma = sec->vma + sec->size;
   5358  1.7  christos       }
   5359  1.7  christos 
   5360  1.7  christos   /* If a "bl" can reach anywhere in local code sections, then we can
   5361  1.7  christos      convert all inline PLT sequences to direct calls when the symbol
   5362  1.7  christos      is local.  */
   5363  1.7  christos   if (high_vma - low_vma < limit)
   5364  1.7  christos     {
   5365  1.7  christos       htab->can_convert_all_inline_plt = 1;
   5366  1.7  christos       return TRUE;
   5367  1.7  christos     }
   5368  1.7  christos 
   5369  1.7  christos   /* Otherwise, go looking through relocs for cases where a direct
   5370  1.7  christos      call won't reach.  Mark the symbol on any such reloc to disable
   5371  1.7  christos      the optimization and keep the PLT entry as it seems likely that
   5372  1.7  christos      this will be better than creating trampolines.  Note that this
   5373  1.7  christos      will disable the optimization for all inline PLT calls to a
   5374  1.7  christos      particular symbol, not just those that won't reach.  The
   5375  1.7  christos      difficulty in doing a more precise optimization is that the
   5376  1.7  christos      linker needs to make a decision depending on whether a
   5377  1.7  christos      particular R_PPC_PLTCALL insn can be turned into a direct
   5378  1.7  christos      call, for each of the R_PPC_PLTSEQ and R_PPC_PLT16* insns in
   5379  1.7  christos      the sequence, and there is nothing that ties those relocs
   5380  1.7  christos      together except their symbol.  */
   5381  1.7  christos 
   5382  1.7  christos   for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   5383  1.7  christos     {
   5384  1.7  christos       Elf_Internal_Shdr *symtab_hdr;
   5385  1.7  christos       Elf_Internal_Sym *local_syms;
   5386  1.7  christos 
   5387  1.7  christos       if (!is_ppc_elf (ibfd))
   5388  1.7  christos 	continue;
   5389  1.7  christos 
   5390  1.7  christos       local_syms = NULL;
   5391  1.7  christos       symtab_hdr = &elf_symtab_hdr (ibfd);
   5392  1.7  christos 
   5393  1.7  christos       for (sec = ibfd->sections; sec != NULL; sec = sec->next)
   5394  1.7  christos 	if (sec->has_pltcall
   5395  1.8       rin 	    && !bfd_is_abs_section (sec->output_section))
   5396  1.7  christos 	  {
   5397  1.7  christos 	    Elf_Internal_Rela *relstart, *rel, *relend;
   5398  1.7  christos 
   5399  1.7  christos 	    /* Read the relocations.  */
   5400  1.7  christos 	    relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
   5401  1.7  christos 						  info->keep_memory);
   5402  1.7  christos 	    if (relstart == NULL)
   5403  1.7  christos 	      return FALSE;
   5404  1.7  christos 
   5405  1.7  christos 	    relend = relstart + sec->reloc_count;
   5406  1.7  christos 	    for (rel = relstart; rel < relend; rel++)
   5407  1.7  christos 	      {
   5408  1.7  christos 		enum elf_ppc_reloc_type r_type;
   5409  1.7  christos 		unsigned long r_symndx;
   5410  1.7  christos 		asection *sym_sec;
   5411  1.7  christos 		struct elf_link_hash_entry *h;
   5412  1.7  christos 		Elf_Internal_Sym *sym;
   5413  1.7  christos 		unsigned char *tls_maskp;
   5414  1.7  christos 
   5415  1.7  christos 		r_type = ELF32_R_TYPE (rel->r_info);
   5416  1.7  christos 		if (r_type != R_PPC_PLTCALL)
   5417  1.7  christos 		  continue;
   5418  1.7  christos 
   5419  1.7  christos 		r_symndx = ELF32_R_SYM (rel->r_info);
   5420  1.7  christos 		if (!get_sym_h (&h, &sym, &sym_sec, &tls_maskp, &local_syms,
   5421  1.7  christos 				r_symndx, ibfd))
   5422  1.7  christos 		  {
   5423  1.7  christos 		    if (elf_section_data (sec)->relocs != relstart)
   5424  1.7  christos 		      free (relstart);
   5425  1.7  christos 		    if (local_syms != NULL
   5426  1.7  christos 			&& symtab_hdr->contents != (unsigned char *) local_syms)
   5427  1.7  christos 		      free (local_syms);
   5428  1.7  christos 		    return FALSE;
   5429  1.7  christos 		  }
   5430  1.7  christos 
   5431  1.7  christos 		if (sym_sec != NULL && sym_sec->output_section != NULL)
   5432  1.7  christos 		  {
   5433  1.7  christos 		    bfd_vma from, to;
   5434  1.7  christos 		    if (h != NULL)
   5435  1.7  christos 		      to = h->root.u.def.value;
   5436  1.7  christos 		    else
   5437  1.7  christos 		      to = sym->st_value;
   5438  1.7  christos 		    to += (rel->r_addend
   5439  1.7  christos 			   + sym_sec->output_offset
   5440  1.7  christos 			   + sym_sec->output_section->vma);
   5441  1.7  christos 		    from = (rel->r_offset
   5442  1.7  christos 			    + sec->output_offset
   5443  1.7  christos 			    + sec->output_section->vma);
   5444  1.7  christos 		    if (to - from + limit < 2 * limit)
   5445  1.7  christos 		      *tls_maskp &= ~PLT_KEEP;
   5446  1.7  christos 		  }
   5447  1.7  christos 	      }
   5448  1.7  christos 	    if (elf_section_data (sec)->relocs != relstart)
   5449  1.7  christos 	      free (relstart);
   5450  1.7  christos 	  }
   5451  1.7  christos 
   5452  1.7  christos       if (local_syms != NULL
   5453  1.7  christos 	  && symtab_hdr->contents != (unsigned char *) local_syms)
   5454  1.7  christos 	{
   5455  1.7  christos 	  if (!info->keep_memory)
   5456  1.7  christos 	    free (local_syms);
   5457  1.7  christos 	  else
   5458  1.7  christos 	    symtab_hdr->contents = (unsigned char *) local_syms;
   5459  1.7  christos 	}
   5460  1.7  christos     }
   5461  1.7  christos 
   5462  1.7  christos   return TRUE;
   5463  1.7  christos }
   5464  1.7  christos 
   5465  1.7  christos /* Set plt output section type, htab->tls_get_addr, and call the
   5466  1.7  christos    generic ELF tls_setup function.  */
   5467  1.7  christos 
   5468  1.7  christos asection *
   5469  1.1  christos ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
   5470  1.1  christos {
   5471  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5472  1.1  christos 
   5473  1.1  christos   htab = ppc_elf_hash_table (info);
   5474  1.1  christos   htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   5475  1.1  christos 					     FALSE, FALSE, TRUE);
   5476  1.1  christos   if (htab->plt_type != PLT_NEW)
   5477  1.1  christos     htab->params->no_tls_get_addr_opt = TRUE;
   5478  1.1  christos 
   5479  1.1  christos   if (!htab->params->no_tls_get_addr_opt)
   5480  1.1  christos     {
   5481  1.1  christos       struct elf_link_hash_entry *opt, *tga;
   5482  1.1  christos       opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
   5483  1.1  christos 				  FALSE, FALSE, TRUE);
   5484  1.1  christos       if (opt != NULL
   5485  1.1  christos 	  && (opt->root.type == bfd_link_hash_defined
   5486  1.1  christos 	      || opt->root.type == bfd_link_hash_defweak))
   5487  1.7  christos 	{
   5488  1.1  christos 	  /* If glibc supports an optimized __tls_get_addr call stub,
   5489  1.1  christos 	     signalled by the presence of __tls_get_addr_opt, and we'll
   5490  1.1  christos 	     be calling __tls_get_addr via a plt call stub, then
   5491  1.1  christos 	     make __tls_get_addr point to __tls_get_addr_opt.  */
   5492  1.1  christos 	  tga = htab->tls_get_addr;
   5493  1.1  christos 	  if (htab->elf.dynamic_sections_created
   5494  1.1  christos 	      && tga != NULL
   5495  1.1  christos 	      && (tga->type == STT_FUNC
   5496  1.1  christos 		  || tga->needs_plt)
   5497  1.1  christos 	      && !(SYMBOL_CALLS_LOCAL (info, tga)
   5498  1.7  christos 		   || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga)))
   5499  1.1  christos 	    {
   5500  1.1  christos 	      struct plt_entry *ent;
   5501  1.1  christos 	      for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
   5502  1.1  christos 		if (ent->plt.refcount > 0)
   5503  1.1  christos 		  break;
   5504  1.1  christos 	      if (ent != NULL)
   5505  1.1  christos 		{
   5506  1.1  christos 		  tga->root.type = bfd_link_hash_indirect;
   5507  1.1  christos 		  tga->root.u.i.link = &opt->root;
   5508  1.1  christos 		  ppc_elf_copy_indirect_symbol (info, opt, tga);
   5509  1.1  christos 		  opt->mark = 1;
   5510  1.1  christos 		  if (opt->dynindx != -1)
   5511  1.1  christos 		    {
   5512  1.1  christos 		      /* Use __tls_get_addr_opt in dynamic relocations.  */
   5513  1.3  christos 		      opt->dynindx = -1;
   5514  1.1  christos 		      _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   5515  1.1  christos 					      opt->dynstr_index);
   5516  1.7  christos 		      if (!bfd_elf_link_record_dynamic_symbol (info, opt))
   5517  1.7  christos 			return FALSE;
   5518  1.1  christos 		    }
   5519  1.7  christos 		  htab->tls_get_addr = opt;
   5520  1.7  christos 		}
   5521  1.1  christos 	    }
   5522  1.1  christos 	}
   5523  1.1  christos       else
   5524  1.1  christos 	htab->params->no_tls_get_addr_opt = TRUE;
   5525  1.1  christos     }
   5526  1.1  christos   if (htab->plt_type == PLT_NEW
   5527  1.1  christos       && htab->elf.splt != NULL
   5528  1.1  christos       && htab->elf.splt->output_section != NULL)
   5529  1.1  christos     {
   5530  1.1  christos       elf_section_type (htab->elf.splt->output_section) = SHT_PROGBITS;
   5531  1.1  christos       elf_section_flags (htab->elf.splt->output_section) = SHF_ALLOC + SHF_WRITE;
   5532  1.1  christos     }
   5533  1.1  christos 
   5534  1.1  christos   return _bfd_elf_tls_setup (obfd, info);
   5535  1.1  christos }
   5536  1.1  christos 
   5537  1.1  christos /* Return TRUE iff REL is a branch reloc with a global symbol matching
   5538  1.1  christos    HASH.  */
   5539  1.1  christos 
   5540  1.1  christos static bfd_boolean
   5541  1.1  christos branch_reloc_hash_match (const bfd *ibfd,
   5542  1.1  christos 			 const Elf_Internal_Rela *rel,
   5543  1.1  christos 			 const struct elf_link_hash_entry *hash)
   5544  1.1  christos {
   5545  1.1  christos   Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5546  1.1  christos   enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
   5547  1.1  christos   unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
   5548  1.1  christos 
   5549  1.1  christos   if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
   5550  1.1  christos     {
   5551  1.1  christos       struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
   5552  1.1  christos       struct elf_link_hash_entry *h;
   5553  1.1  christos 
   5554  1.1  christos       h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5555  1.1  christos       while (h->root.type == bfd_link_hash_indirect
   5556  1.1  christos 	     || h->root.type == bfd_link_hash_warning)
   5557  1.1  christos 	h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5558  1.1  christos       if (h == hash)
   5559  1.1  christos 	return TRUE;
   5560  1.1  christos     }
   5561  1.1  christos   return FALSE;
   5562  1.1  christos }
   5563  1.1  christos 
   5564  1.1  christos /* Run through all the TLS relocs looking for optimization
   5565  1.3  christos    opportunities.  */
   5566  1.1  christos 
   5567  1.1  christos bfd_boolean
   5568  1.1  christos ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
   5569  1.1  christos 		      struct bfd_link_info *info)
   5570  1.1  christos {
   5571  1.1  christos   bfd *ibfd;
   5572  1.1  christos   asection *sec;
   5573  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5574  1.1  christos   int pass;
   5575  1.1  christos 
   5576  1.1  christos   if (!bfd_link_executable (info))
   5577  1.1  christos     return TRUE;
   5578  1.1  christos 
   5579  1.3  christos   htab = ppc_elf_hash_table (info);
   5580  1.1  christos   if (htab == NULL)
   5581  1.1  christos     return FALSE;
   5582  1.1  christos 
   5583  1.1  christos   /* Make two passes through the relocs.  First time check that tls
   5584  1.1  christos      relocs involved in setting up a tls_get_addr call are indeed
   5585  1.1  christos      followed by such a call.  If they are not, don't do any tls
   5586  1.1  christos      optimization.  On the second pass twiddle tls_mask flags to
   5587  1.1  christos      notify relocate_section that optimization can be done, and
   5588  1.1  christos      adjust got and plt refcounts.  */
   5589  1.1  christos   for (pass = 0; pass < 2; ++pass)
   5590  1.1  christos     for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   5591  1.1  christos       {
   5592  1.1  christos 	Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5593  1.1  christos 	asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
   5594  1.1  christos 
   5595  1.1  christos 	for (sec = ibfd->sections; sec != NULL; sec = sec->next)
   5596  1.1  christos 	  if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
   5597  1.1  christos 	    {
   5598  1.1  christos 	      Elf_Internal_Rela *relstart, *rel, *relend;
   5599  1.1  christos 	      int expecting_tls_get_addr = 0;
   5600  1.1  christos 
   5601  1.1  christos 	      /* Read the relocations.  */
   5602  1.7  christos 	      relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
   5603  1.7  christos 						    info->keep_memory);
   5604  1.1  christos 	      if (relstart == NULL)
   5605  1.1  christos 		return FALSE;
   5606  1.1  christos 
   5607  1.1  christos 	      relend = relstart + sec->reloc_count;
   5608  1.1  christos 	      for (rel = relstart; rel < relend; rel++)
   5609  1.1  christos 		{
   5610  1.1  christos 		  enum elf_ppc_reloc_type r_type;
   5611  1.1  christos 		  unsigned long r_symndx;
   5612  1.1  christos 		  struct elf_link_hash_entry *h = NULL;
   5613  1.1  christos 		  unsigned char *tls_mask;
   5614  1.1  christos 		  unsigned char tls_set, tls_clear;
   5615  1.1  christos 		  bfd_boolean is_local;
   5616  1.1  christos 		  bfd_signed_vma *got_count;
   5617  1.1  christos 
   5618  1.1  christos 		  r_symndx = ELF32_R_SYM (rel->r_info);
   5619  1.1  christos 		  if (r_symndx >= symtab_hdr->sh_info)
   5620  1.1  christos 		    {
   5621  1.1  christos 		      struct elf_link_hash_entry **sym_hashes;
   5622  1.1  christos 
   5623  1.1  christos 		      sym_hashes = elf_sym_hashes (ibfd);
   5624  1.1  christos 		      h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5625  1.1  christos 		      while (h->root.type == bfd_link_hash_indirect
   5626  1.1  christos 			     || h->root.type == bfd_link_hash_warning)
   5627  1.1  christos 			h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5628  1.1  christos 		    }
   5629  1.1  christos 
   5630  1.1  christos 		  is_local = FALSE;
   5631  1.1  christos 		  if (h == NULL
   5632  1.1  christos 		      || !h->def_dynamic)
   5633  1.1  christos 		    is_local = TRUE;
   5634  1.1  christos 
   5635  1.1  christos 		  r_type = ELF32_R_TYPE (rel->r_info);
   5636  1.1  christos 		  /* If this section has old-style __tls_get_addr calls
   5637  1.1  christos 		     without marker relocs, then check that each
   5638  1.1  christos 		     __tls_get_addr call reloc is preceded by a reloc
   5639  1.1  christos 		     that conceivably belongs to the __tls_get_addr arg
   5640  1.1  christos 		     setup insn.  If we don't find matching arg setup
   5641  1.1  christos 		     relocs, don't do any tls optimization.  */
   5642  1.1  christos 		  if (pass == 0
   5643  1.1  christos 		      && sec->has_tls_get_addr_call
   5644  1.1  christos 		      && h != NULL
   5645  1.1  christos 		      && h == htab->tls_get_addr
   5646  1.1  christos 		      && !expecting_tls_get_addr
   5647  1.1  christos 		      && is_branch_reloc (r_type))
   5648  1.1  christos 		    {
   5649  1.1  christos 		      info->callbacks->minfo ("%H __tls_get_addr lost arg, "
   5650  1.1  christos 					      "TLS optimization disabled\n",
   5651  1.1  christos 					      ibfd, sec, rel->r_offset);
   5652  1.7  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5653  1.1  christos 			free (relstart);
   5654  1.1  christos 		      return TRUE;
   5655  1.1  christos 		    }
   5656  1.1  christos 
   5657  1.1  christos 		  expecting_tls_get_addr = 0;
   5658  1.1  christos 		  switch (r_type)
   5659  1.1  christos 		    {
   5660  1.1  christos 		    case R_PPC_GOT_TLSLD16:
   5661  1.1  christos 		    case R_PPC_GOT_TLSLD16_LO:
   5662  1.1  christos 		      expecting_tls_get_addr = 1;
   5663  1.1  christos 		      /* Fall through.  */
   5664  1.1  christos 
   5665  1.1  christos 		    case R_PPC_GOT_TLSLD16_HI:
   5666  1.1  christos 		    case R_PPC_GOT_TLSLD16_HA:
   5667  1.1  christos 		      /* These relocs should never be against a symbol
   5668  1.1  christos 			 defined in a shared lib.  Leave them alone if
   5669  1.1  christos 			 that turns out to be the case.  */
   5670  1.7  christos 		      if (!is_local)
   5671  1.1  christos 			continue;
   5672  1.1  christos 
   5673  1.1  christos 		      /* LD -> LE */
   5674  1.1  christos 		      tls_set = 0;
   5675  1.1  christos 		      tls_clear = TLS_LD;
   5676  1.1  christos 		      break;
   5677  1.1  christos 
   5678  1.1  christos 		    case R_PPC_GOT_TLSGD16:
   5679  1.1  christos 		    case R_PPC_GOT_TLSGD16_LO:
   5680  1.1  christos 		      expecting_tls_get_addr = 1;
   5681  1.1  christos 		      /* Fall through.  */
   5682  1.1  christos 
   5683  1.1  christos 		    case R_PPC_GOT_TLSGD16_HI:
   5684  1.1  christos 		    case R_PPC_GOT_TLSGD16_HA:
   5685  1.1  christos 		      if (is_local)
   5686  1.1  christos 			/* GD -> LE */
   5687  1.1  christos 			tls_set = 0;
   5688  1.1  christos 		      else
   5689  1.1  christos 			/* GD -> IE */
   5690  1.1  christos 			tls_set = TLS_TLS | TLS_TPRELGD;
   5691  1.1  christos 		      tls_clear = TLS_GD;
   5692  1.1  christos 		      break;
   5693  1.1  christos 
   5694  1.1  christos 		    case R_PPC_GOT_TPREL16:
   5695  1.1  christos 		    case R_PPC_GOT_TPREL16_LO:
   5696  1.1  christos 		    case R_PPC_GOT_TPREL16_HI:
   5697  1.1  christos 		    case R_PPC_GOT_TPREL16_HA:
   5698  1.1  christos 		      if (is_local)
   5699  1.7  christos 			{
   5700  1.7  christos 			  /* IE -> LE */
   5701  1.7  christos 			  tls_set = 0;
   5702  1.7  christos 			  tls_clear = TLS_TPREL;
   5703  1.7  christos 			  break;
   5704  1.7  christos 			}
   5705  1.7  christos 		      else
   5706  1.7  christos 			continue;
   5707  1.7  christos 
   5708  1.7  christos 		    case R_PPC_TLSGD:
   5709  1.7  christos 		    case R_PPC_TLSLD:
   5710  1.7  christos 		      if (rel + 1 < relend
   5711  1.7  christos 			  && is_plt_seq_reloc (ELF32_R_TYPE (rel[1].r_info)))
   5712  1.7  christos 			{
   5713  1.7  christos 			  if (pass != 0
   5714  1.7  christos 			      && ELF32_R_TYPE (rel[1].r_info) != R_PPC_PLTSEQ)
   5715  1.7  christos 			    {
   5716  1.7  christos 			      r_type = ELF32_R_TYPE (rel[1].r_info);
   5717  1.7  christos 			      r_symndx = ELF32_R_SYM (rel[1].r_info);
   5718  1.7  christos 			      if (r_symndx >= symtab_hdr->sh_info)
   5719  1.7  christos 				{
   5720  1.7  christos 				  struct elf_link_hash_entry **sym_hashes;
   5721  1.7  christos 
   5722  1.7  christos 				  sym_hashes = elf_sym_hashes (ibfd);
   5723  1.7  christos 				  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5724  1.7  christos 				  while (h->root.type == bfd_link_hash_indirect
   5725  1.7  christos 					 || h->root.type == bfd_link_hash_warning)
   5726  1.7  christos 				    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5727  1.7  christos 				  if (h != NULL)
   5728  1.7  christos 				    {
   5729  1.7  christos 				      struct plt_entry *ent = NULL;
   5730  1.7  christos 				      bfd_vma addend = 0;
   5731  1.7  christos 
   5732  1.7  christos 				      if (bfd_link_pic (info))
   5733  1.1  christos 					addend = rel->r_addend;
   5734  1.1  christos 				      ent = find_plt_ent (&h->plt.plist,
   5735  1.1  christos 							  got2, addend);
   5736  1.1  christos 				      if (ent != NULL
   5737  1.1  christos 					  && ent->plt.refcount > 0)
   5738  1.1  christos 					ent->plt.refcount -= 1;
   5739  1.1  christos 				    }
   5740  1.1  christos 				}
   5741  1.1  christos 			    }
   5742  1.1  christos 			  continue;
   5743  1.1  christos 			}
   5744  1.1  christos 		      expecting_tls_get_addr = 2;
   5745  1.7  christos 		      tls_set = 0;
   5746  1.1  christos 		      tls_clear = 0;
   5747  1.1  christos 		      break;
   5748  1.1  christos 
   5749  1.1  christos 		    default:
   5750  1.1  christos 		      continue;
   5751  1.1  christos 		    }
   5752  1.1  christos 
   5753  1.1  christos 		  if (pass == 0)
   5754  1.1  christos 		    {
   5755  1.1  christos 		      if (!expecting_tls_get_addr
   5756  1.1  christos 			  || !sec->has_tls_get_addr_call)
   5757  1.1  christos 			continue;
   5758  1.1  christos 
   5759  1.1  christos 		      if (rel + 1 < relend
   5760  1.1  christos 			  && branch_reloc_hash_match (ibfd, rel + 1,
   5761  1.1  christos 						      htab->tls_get_addr))
   5762  1.1  christos 			continue;
   5763  1.1  christos 
   5764  1.1  christos 		      /* Uh oh, we didn't find the expected call.  We
   5765  1.1  christos 			 could just mark this symbol to exclude it
   5766  1.1  christos 			 from tls optimization but it's safer to skip
   5767  1.1  christos 			 the entire optimization.  */
   5768  1.1  christos 		      info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
   5769  1.1  christos 						"TLS optimization disabled\n"),
   5770  1.1  christos 					      ibfd, sec, rel->r_offset);
   5771  1.1  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5772  1.1  christos 			free (relstart);
   5773  1.1  christos 		      return TRUE;
   5774  1.7  christos 		    }
   5775  1.1  christos 
   5776  1.1  christos 		  if (h != NULL)
   5777  1.1  christos 		    {
   5778  1.1  christos 		      tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
   5779  1.1  christos 		      got_count = &h->got.refcount;
   5780  1.1  christos 		    }
   5781  1.7  christos 		  else
   5782  1.7  christos 		    {
   5783  1.1  christos 		      bfd_signed_vma *lgot_refs;
   5784  1.1  christos 		      struct plt_entry **local_plt;
   5785  1.1  christos 		      unsigned char *lgot_masks;
   5786  1.1  christos 
   5787  1.7  christos 		      lgot_refs = elf_local_got_refcounts (ibfd);
   5788  1.7  christos 		      if (lgot_refs == NULL)
   5789  1.7  christos 			abort ();
   5790  1.7  christos 		      local_plt = (struct plt_entry **)
   5791  1.7  christos 			(lgot_refs + symtab_hdr->sh_info);
   5792  1.7  christos 		      lgot_masks = (unsigned char *)
   5793  1.7  christos 			(local_plt + symtab_hdr->sh_info);
   5794  1.7  christos 		      tls_mask = &lgot_masks[r_symndx];
   5795  1.7  christos 		      got_count = &lgot_refs[r_symndx];
   5796  1.7  christos 		    }
   5797  1.7  christos 
   5798  1.7  christos 		  /* If we don't have old-style __tls_get_addr calls
   5799  1.7  christos 		     without TLSGD/TLSLD marker relocs, and we haven't
   5800  1.7  christos 		     found a new-style __tls_get_addr call with a
   5801  1.7  christos 		     marker for this symbol, then we either have a
   5802  1.7  christos 		     broken object file or an -mlongcall style
   5803  1.7  christos 		     indirect call to __tls_get_addr without a marker.
   5804  1.7  christos 		     Disable optimization in this case.  */
   5805  1.7  christos 		  if ((tls_clear & (TLS_GD | TLS_LD)) != 0
   5806  1.7  christos 		      && !sec->has_tls_get_addr_call
   5807  1.7  christos 		      && ((*tls_mask & (TLS_TLS | TLS_MARK))
   5808  1.7  christos 			  != (TLS_TLS | TLS_MARK)))
   5809  1.7  christos 		    continue;
   5810  1.7  christos 
   5811  1.7  christos 		  if (expecting_tls_get_addr)
   5812  1.7  christos 		    {
   5813  1.7  christos 		      struct plt_entry *ent;
   5814  1.7  christos 		      bfd_vma addend = 0;
   5815  1.7  christos 
   5816  1.7  christos 		      if (bfd_link_pic (info)
   5817  1.7  christos 			  && (ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24
   5818  1.1  christos 			      || ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTCALL))
   5819  1.1  christos 			addend = rel[1].r_addend;
   5820  1.1  christos 		      ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
   5821  1.1  christos 					  got2, addend);
   5822  1.1  christos 		      if (ent != NULL && ent->plt.refcount > 0)
   5823  1.1  christos 			ent->plt.refcount -= 1;
   5824  1.1  christos 
   5825  1.1  christos 		      if (expecting_tls_get_addr == 2)
   5826  1.1  christos 			continue;
   5827  1.1  christos 		    }
   5828  1.1  christos 
   5829  1.1  christos 		  if (tls_set == 0)
   5830  1.1  christos 		    {
   5831  1.1  christos 		      /* We managed to get rid of a got entry.  */
   5832  1.1  christos 		      if (*got_count > 0)
   5833  1.7  christos 			*got_count -= 1;
   5834  1.1  christos 		    }
   5835  1.1  christos 
   5836  1.1  christos 		  *tls_mask |= tls_set;
   5837  1.7  christos 		  *tls_mask &= ~tls_clear;
   5838  1.1  christos 		}
   5839  1.7  christos 
   5840  1.7  christos 	      if (elf_section_data (sec)->relocs != relstart)
   5841  1.1  christos 		free (relstart);
   5842  1.1  christos 	    }
   5843  1.1  christos       }
   5844  1.1  christos   htab->do_tls_opt = 1;
   5845  1.1  christos   return TRUE;
   5846  1.1  christos }
   5847  1.1  christos 
   5848  1.7  christos /* Find dynamic relocs for H that apply to read-only sections.  */
   5850  1.1  christos 
   5851  1.7  christos static asection *
   5852  1.7  christos readonly_dynrelocs (struct elf_link_hash_entry *h)
   5853  1.7  christos {
   5854  1.7  christos   struct elf_dyn_relocs *p;
   5855  1.7  christos 
   5856  1.7  christos   for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
   5857  1.7  christos     {
   5858  1.7  christos       asection *s = p->sec->output_section;
   5859  1.7  christos 
   5860  1.7  christos       if (s != NULL && (s->flags & SEC_READONLY) != 0)
   5861  1.7  christos 	return p->sec;
   5862  1.7  christos     }
   5863  1.7  christos   return NULL;
   5864  1.7  christos }
   5865  1.7  christos 
   5866  1.7  christos /* Return true if we have dynamic relocs against H or any of its weak
   5867  1.7  christos    aliases, that apply to read-only sections.  Cannot be used after
   5868  1.7  christos    size_dynamic_sections.  */
   5869  1.7  christos 
   5870  1.7  christos static bfd_boolean
   5871  1.7  christos alias_readonly_dynrelocs (struct elf_link_hash_entry *h)
   5872  1.7  christos {
   5873  1.7  christos   struct ppc_elf_link_hash_entry *eh = ppc_elf_hash_entry (h);
   5874  1.7  christos   do
   5875  1.7  christos     {
   5876  1.7  christos       if (readonly_dynrelocs (&eh->elf))
   5877  1.7  christos 	return TRUE;
   5878  1.7  christos       eh = ppc_elf_hash_entry (eh->elf.u.alias);
   5879  1.7  christos     } while (eh != NULL && &eh->elf != h);
   5880  1.7  christos 
   5881  1.7  christos   return FALSE;
   5882  1.1  christos }
   5883  1.1  christos 
   5884  1.1  christos /* Return whether H has pc-relative dynamic relocs.  */
   5885  1.1  christos 
   5886  1.1  christos static bfd_boolean
   5887  1.1  christos pc_dynrelocs (struct elf_link_hash_entry *h)
   5888  1.1  christos {
   5889  1.1  christos   struct elf_dyn_relocs *p;
   5890  1.1  christos 
   5891  1.1  christos   for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
   5892  1.1  christos     if (p->pc_count != 0)
   5893  1.1  christos       return TRUE;
   5894  1.1  christos   return FALSE;
   5895  1.1  christos }
   5896  1.1  christos 
   5897  1.1  christos /* Adjust a symbol defined by a dynamic object and referenced by a
   5898  1.1  christos    regular object.  The current definition is in some section of the
   5899  1.1  christos    dynamic object, but we're not including those sections.  We have to
   5900  1.1  christos    change the definition to something the rest of the link can
   5901  1.1  christos    understand.  */
   5902  1.1  christos 
   5903  1.1  christos static bfd_boolean
   5904  1.1  christos ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
   5905  1.1  christos 			       struct elf_link_hash_entry *h)
   5906  1.1  christos {
   5907  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5908  1.7  christos   asection *s;
   5909  1.1  christos 
   5910  1.1  christos #ifdef DEBUG
   5911  1.1  christos   fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
   5912  1.1  christos 	   h->root.root.string);
   5913  1.1  christos #endif
   5914  1.1  christos 
   5915  1.1  christos   /* Make sure we know what is going on here.  */
   5916  1.1  christos   htab = ppc_elf_hash_table (info);
   5917  1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL
   5918  1.7  christos 	      && (h->needs_plt
   5919  1.7  christos 		  || h->type == STT_GNU_IFUNC
   5920  1.7  christos 		  || h->is_weakalias
   5921  1.7  christos 		  || (h->def_dynamic
   5922  1.7  christos 		      && h->ref_regular
   5923  1.7  christos 		      && !h->def_regular)));
   5924  1.7  christos 
   5925  1.1  christos   /* Deal with function syms.  */
   5926  1.1  christos   if (h->type == STT_FUNC
   5927  1.1  christos       || h->type == STT_GNU_IFUNC
   5928  1.1  christos       || h->needs_plt)
   5929  1.1  christos     {
   5930  1.1  christos       bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, h)
   5931  1.1  christos 			   || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
   5932  1.1  christos       /* Discard dyn_relocs when non-pic if we've decided that a
   5933  1.7  christos 	 function symbol is local.  */
   5934  1.7  christos       if (!bfd_link_pic (info) && local)
   5935  1.7  christos 	ppc_elf_hash_entry (h)->dyn_relocs = NULL;
   5936  1.7  christos 
   5937  1.1  christos       /* Clear procedure linkage table information for any symbol that
   5938  1.1  christos 	 won't need a .plt entry.  */
   5939  1.1  christos       struct plt_entry *ent;
   5940  1.1  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   5941  1.1  christos 	if (ent->plt.refcount > 0)
   5942  1.1  christos 	  break;
   5943  1.1  christos       if (ent == NULL
   5944  1.1  christos 	  || (h->type != STT_GNU_IFUNC
   5945  1.1  christos 	      && local
   5946  1.1  christos 	      && (htab->can_convert_all_inline_plt
   5947  1.1  christos 		  || (ppc_elf_hash_entry (h)->tls_mask
   5948  1.1  christos 		      & (TLS_TLS | PLT_KEEP)) != PLT_KEEP)))
   5949  1.1  christos 	{
   5950  1.3  christos 	  /* A PLT entry is not required/allowed when:
   5951  1.1  christos 
   5952  1.1  christos 	     1. We are not using ld.so; because then the PLT entry
   5953  1.1  christos 	     can't be set up, so we can't use one.  In this case,
   5954  1.3  christos 	     ppc_elf_adjust_dynamic_symbol won't even be called.
   5955  1.3  christos 
   5956  1.3  christos 	     2. GC has rendered the entry unused.
   5957  1.7  christos 
   5958  1.7  christos 	     3. We know for certain that a call to this symbol
   5959  1.7  christos 	     will go to this object, or will remain undefined.  */
   5960  1.7  christos 	  h->plt.plist = NULL;
   5961  1.7  christos 	  h->needs_plt = 0;
   5962  1.7  christos 	  h->pointer_equality_needed = 0;
   5963  1.7  christos 	}
   5964  1.7  christos       else
   5965  1.7  christos 	{
   5966  1.7  christos 	  /* Taking a function's address in a read/write section
   5967  1.3  christos 	     doesn't require us to define the function symbol in the
   5968  1.3  christos 	     executable on a plt call stub.  A dynamic reloc can
   5969  1.7  christos 	     be used instead, giving better runtime performance.
   5970  1.3  christos 	     (Calls via that function pointer don't need to bounce
   5971  1.3  christos 	     through the plt call stub.)  Similarly, use a dynamic
   5972  1.7  christos 	     reloc for a weak reference when possible, allowing the
   5973  1.7  christos 	     resolution of the symbol to be set at load time rather
   5974  1.7  christos 	     than link time.  */
   5975  1.7  christos 	  if ((h->pointer_equality_needed
   5976  1.7  christos 	       || (h->non_got_ref
   5977  1.7  christos 		   && !h->ref_regular_nonweak
   5978  1.7  christos 		   && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)))
   5979  1.7  christos 	      && !htab->is_vxworks
   5980  1.7  christos 	      && !ppc_elf_hash_entry (h)->has_sda_refs
   5981  1.1  christos 	      && !readonly_dynrelocs (h))
   5982  1.3  christos 	    {
   5983  1.7  christos 	      h->pointer_equality_needed = 0;
   5984  1.1  christos 	      /* If we haven't seen a branch reloc and the symbol
   5985  1.1  christos 		 isn't an ifunc then we don't need a plt entry.  */
   5986  1.1  christos 	      if (!h->needs_plt && h->type != STT_GNU_IFUNC)
   5987  1.1  christos 		h->plt.plist = NULL;
   5988  1.1  christos 	    }
   5989  1.1  christos 	  else if (!bfd_link_pic (info))
   5990  1.1  christos 	    /* We are going to be defining the function symbol on the
   5991  1.1  christos 	       plt stub, so no dyn_relocs needed when non-pic.  */
   5992  1.7  christos 	    ppc_elf_hash_entry (h)->dyn_relocs = NULL;
   5993  1.1  christos 	}
   5994  1.7  christos       h->protected_def = 0;
   5995  1.7  christos       /* Function symbols can't have copy relocs.  */
   5996  1.7  christos       return TRUE;
   5997  1.7  christos     }
   5998  1.7  christos   else
   5999  1.7  christos     h->plt.plist = NULL;
   6000  1.7  christos 
   6001  1.7  christos   /* If this is a weak symbol, and there is a real definition, the
   6002  1.1  christos      processor independent code will have arranged for us to see the
   6003  1.1  christos      real definition first, and we can just use the same value.  */
   6004  1.1  christos   if (h->is_weakalias)
   6005  1.1  christos     {
   6006  1.1  christos       struct elf_link_hash_entry *def = weakdef (h);
   6007  1.1  christos       BFD_ASSERT (def->root.type == bfd_link_hash_defined);
   6008  1.1  christos       h->root.u.def.section = def->root.u.def.section;
   6009  1.1  christos       h->root.u.def.value = def->root.u.def.value;
   6010  1.1  christos       if (def->root.u.def.section == htab->elf.sdynbss
   6011  1.1  christos 	  || def->root.u.def.section == htab->elf.sdynrelro
   6012  1.3  christos 	  || def->root.u.def.section == htab->dynsbss)
   6013  1.3  christos 	ppc_elf_hash_entry (h)->dyn_relocs = NULL;
   6014  1.3  christos       return TRUE;
   6015  1.3  christos     }
   6016  1.3  christos 
   6017  1.1  christos   /* This is a reference to a symbol defined by a dynamic object which
   6018  1.1  christos      is not a function.  */
   6019  1.1  christos 
   6020  1.1  christos   /* If we are creating a shared library, we must presume that the
   6021  1.3  christos      only references to the symbol are via the global offset table.
   6022  1.3  christos      For such cases we need not do anything here; the relocations will
   6023  1.3  christos      be handled correctly by relocate_section.  */
   6024  1.3  christos   if (bfd_link_pic (info))
   6025  1.3  christos     {
   6026  1.3  christos       h->protected_def = 0;
   6027  1.3  christos       return TRUE;
   6028  1.3  christos     }
   6029  1.3  christos 
   6030  1.3  christos   /* If there are no references to this symbol that do not use the
   6031  1.3  christos      GOT, we don't need to generate a copy reloc.  */
   6032  1.3  christos   if (!h->non_got_ref)
   6033  1.3  christos     {
   6034  1.3  christos       h->protected_def = 0;
   6035  1.3  christos       return TRUE;
   6036  1.3  christos     }
   6037  1.3  christos 
   6038  1.3  christos   /* Protected variables do not work with .dynbss.  The copy in
   6039  1.3  christos      .dynbss won't be used by the shared library with the protected
   6040  1.3  christos      definition for the variable.  Editing to PIC, or text relocations
   6041  1.3  christos      are preferable to an incorrect program.  */
   6042  1.3  christos   if (h->protected_def)
   6043  1.7  christos     {
   6044  1.1  christos       if (ELIMINATE_COPY_RELOCS
   6045  1.7  christos 	  && ppc_elf_hash_entry (h)->has_addr16_ha
   6046  1.1  christos 	  && ppc_elf_hash_entry (h)->has_addr16_lo
   6047  1.1  christos 	  && htab->params->pic_fixup == 0
   6048  1.1  christos 	  && info->disable_target_specific_optimizations <= 1)
   6049  1.1  christos 	htab->params->pic_fixup = 1;
   6050  1.1  christos       return TRUE;
   6051  1.1  christos     }
   6052  1.1  christos 
   6053  1.1  christos   /* If -z nocopyreloc was given, we won't generate them either.  */
   6054  1.1  christos   if (info->nocopyreloc)
   6055  1.7  christos     return TRUE;
   6056  1.7  christos 
   6057  1.1  christos    /* If we don't find any dynamic relocs in read-only sections, then
   6058  1.1  christos       we'll be keeping the dynamic relocs and avoiding the copy reloc.
   6059  1.1  christos       We can't do this if there are any small data relocations.  This
   6060  1.1  christos       doesn't work on VxWorks, where we can not have dynamic
   6061  1.1  christos       relocations (other than copy and jump slot relocations) in an
   6062  1.1  christos       executable.  */
   6063  1.1  christos   if (ELIMINATE_COPY_RELOCS
   6064  1.1  christos       && !ppc_elf_hash_entry (h)->has_sda_refs
   6065  1.1  christos       && !htab->is_vxworks
   6066  1.1  christos       && !h->def_regular
   6067  1.1  christos       && !alias_readonly_dynrelocs (h))
   6068  1.1  christos     return TRUE;
   6069  1.1  christos 
   6070  1.1  christos   /* We must allocate the symbol in our .dynbss section, which will
   6071  1.1  christos      become part of the .bss section of the executable.  There will be
   6072  1.7  christos      an entry for this symbol in the .dynsym section.  The dynamic
   6073  1.7  christos      object will contain position independent code, so all references
   6074  1.1  christos      from the dynamic object to this symbol will go through the global
   6075  1.7  christos      offset table.  The dynamic linker will use the .dynsym entry to
   6076  1.1  christos      determine the address it must put in the global offset table, so
   6077  1.1  christos      both the dynamic object and the regular object will refer to the
   6078  1.1  christos      same memory location for the variable.
   6079  1.1  christos 
   6080  1.1  christos      Of course, if the symbol is referenced using SDAREL relocs, we
   6081  1.1  christos      must instead allocate it in .sbss.  */
   6082  1.7  christos   if (ppc_elf_hash_entry (h)->has_sda_refs)
   6083  1.7  christos     s = htab->dynsbss;
   6084  1.7  christos   else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
   6085  1.1  christos     s = htab->elf.sdynrelro;
   6086  1.1  christos   else
   6087  1.7  christos     s = htab->elf.sdynbss;
   6088  1.7  christos   BFD_ASSERT (s != NULL);
   6089  1.1  christos 
   6090  1.7  christos   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
   6091  1.1  christos     {
   6092  1.1  christos       asection *srel;
   6093  1.1  christos 
   6094  1.1  christos       /* We must generate a R_PPC_COPY reloc to tell the dynamic
   6095  1.1  christos 	 linker to copy the initial value out of the dynamic object
   6096  1.7  christos 	 and into the runtime process image.  */
   6097  1.7  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   6098  1.3  christos 	srel = htab->relsbss;
   6099  1.1  christos       else if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
   6100  1.1  christos 	srel = htab->elf.sreldynrelro;
   6101  1.1  christos       else
   6102  1.1  christos 	srel = htab->elf.srelbss;
   6103  1.1  christos       BFD_ASSERT (srel != NULL);
   6104  1.1  christos       srel->size += sizeof (Elf32_External_Rela);
   6105  1.1  christos       h->needs_copy = 1;
   6106  1.1  christos     }
   6107  1.1  christos 
   6108  1.1  christos   /* We no longer want dyn_relocs.  */
   6109  1.1  christos   ppc_elf_hash_entry (h)->dyn_relocs = NULL;
   6110  1.1  christos   return _bfd_elf_adjust_dynamic_copy (info, h, s);
   6111  1.1  christos }
   6112  1.1  christos 
   6113  1.1  christos /* Generate a symbol to mark plt call stubs.  For non-PIC code the sym is
   6115  1.1  christos    xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
   6116  1.1  christos    specifying the addend on the plt relocation.  For -fpic code, the sym
   6117  1.1  christos    is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
   6118  1.3  christos    xxxxxxxx.got2.plt_pic32.<callee>.  */
   6119  1.1  christos 
   6120  1.1  christos static bfd_boolean
   6121  1.1  christos add_stub_sym (struct plt_entry *ent,
   6122  1.1  christos 	      struct elf_link_hash_entry *h,
   6123  1.1  christos 	      struct bfd_link_info *info)
   6124  1.1  christos {
   6125  1.1  christos   struct elf_link_hash_entry *sh;
   6126  1.1  christos   size_t len1, len2, len3;
   6127  1.1  christos   char *name;
   6128  1.1  christos   const char *stub;
   6129  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   6130  1.1  christos 
   6131  1.1  christos   if (bfd_link_pic (info))
   6132  1.1  christos     stub = ".plt_pic32.";
   6133  1.1  christos   else
   6134  1.1  christos     stub = ".plt_call32.";
   6135  1.1  christos 
   6136  1.1  christos   len1 = strlen (h->root.root.string);
   6137  1.1  christos   len2 = strlen (stub);
   6138  1.1  christos   len3 = 0;
   6139  1.1  christos   if (ent->sec)
   6140  1.1  christos     len3 = strlen (ent->sec->name);
   6141  1.1  christos   name = bfd_malloc (len1 + len2 + len3 + 9);
   6142  1.1  christos   if (name == NULL)
   6143  1.1  christos     return FALSE;
   6144  1.1  christos   sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
   6145  1.1  christos   if (ent->sec)
   6146  1.1  christos     memcpy (name + 8, ent->sec->name, len3);
   6147  1.1  christos   memcpy (name + 8 + len3, stub, len2);
   6148  1.1  christos   memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
   6149  1.3  christos   sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
   6150  1.1  christos   if (sh == NULL)
   6151  1.1  christos     return FALSE;
   6152  1.1  christos   if (sh->root.type == bfd_link_hash_new)
   6153  1.1  christos     {
   6154  1.1  christos       sh->root.type = bfd_link_hash_defined;
   6155  1.1  christos       sh->root.u.def.section = htab->glink;
   6156  1.1  christos       sh->root.u.def.value = ent->glink_offset;
   6157  1.1  christos       sh->ref_regular = 1;
   6158  1.1  christos       sh->def_regular = 1;
   6159  1.1  christos       sh->ref_regular_nonweak = 1;
   6160  1.1  christos       sh->forced_local = 1;
   6161  1.1  christos       sh->non_elf = 0;
   6162  1.1  christos       sh->root.linker_def = 1;
   6163  1.1  christos     }
   6164  1.1  christos   return TRUE;
   6165  1.7  christos }
   6166  1.7  christos 
   6167  1.1  christos /* Allocate NEED contiguous space in .got, and return the offset.
   6168  1.1  christos    Handles allocation of the got header when crossing 32k.  */
   6169  1.1  christos 
   6170  1.1  christos static bfd_vma
   6171  1.1  christos allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
   6172  1.1  christos {
   6173  1.1  christos   bfd_vma where;
   6174  1.1  christos   unsigned int max_before_header;
   6175  1.1  christos 
   6176  1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   6177  1.1  christos     {
   6178  1.7  christos       where = htab->elf.sgot->size;
   6179  1.7  christos       htab->elf.sgot->size += need;
   6180  1.1  christos     }
   6181  1.7  christos   else
   6182  1.7  christos     {
   6183  1.1  christos       max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
   6184  1.7  christos       if (need <= htab->got_gap)
   6185  1.7  christos 	{
   6186  1.1  christos 	  where = max_before_header - htab->got_gap;
   6187  1.1  christos 	  htab->got_gap -= need;
   6188  1.1  christos 	}
   6189  1.1  christos       else
   6190  1.1  christos 	{
   6191  1.7  christos 	  if (htab->elf.sgot->size + need > max_before_header
   6192  1.7  christos 	      && htab->elf.sgot->size <= max_before_header)
   6193  1.7  christos 	    {
   6194  1.7  christos 	      htab->got_gap = max_before_header - htab->elf.sgot->size;
   6195  1.7  christos 	      htab->elf.sgot->size = max_before_header + htab->got_header_size;
   6196  1.7  christos 	    }
   6197  1.7  christos 	  where = htab->elf.sgot->size;
   6198  1.7  christos 	  htab->elf.sgot->size += need;
   6199  1.7  christos 	}
   6200  1.7  christos     }
   6201  1.7  christos   return where;
   6202  1.7  christos }
   6203  1.7  christos 
   6204  1.7  christos /* Calculate size of GOT entries for symbol given its TLS_MASK.
   6205  1.7  christos    TLS_LD is excluded because those go in a special GOT slot.  */
   6206  1.7  christos 
   6207  1.7  christos static inline unsigned int
   6208  1.7  christos got_entries_needed (int tls_mask)
   6209  1.7  christos {
   6210  1.7  christos   unsigned int need;
   6211  1.7  christos   if ((tls_mask & TLS_TLS) == 0)
   6212  1.7  christos     need = 4;
   6213  1.7  christos   else
   6214  1.7  christos     {
   6215  1.7  christos       need = 0;
   6216  1.7  christos       if ((tls_mask & TLS_GD) != 0)
   6217  1.7  christos 	need += 8;
   6218  1.7  christos       if ((tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
   6219  1.7  christos 	need += 4;
   6220  1.7  christos       if ((tls_mask & TLS_DTPREL) != 0)
   6221  1.7  christos 	need += 4;
   6222  1.7  christos     }
   6223  1.7  christos   return need;
   6224  1.7  christos }
   6225  1.7  christos 
   6226  1.7  christos /* Calculate size of relocs needed for symbol given its TLS_MASK and
   6227  1.7  christos    NEEDed GOT entries.  KNOWN says a TPREL offset can be calculated at
   6228  1.7  christos    link time.  */
   6229  1.7  christos 
   6230  1.7  christos static inline unsigned int
   6231  1.7  christos got_relocs_needed (int tls_mask, unsigned int need, bfd_boolean known)
   6232  1.7  christos {
   6233  1.7  christos   /* All the entries we allocated need relocs.
   6234  1.7  christos      Except IE in executable with a local symbol.  We could also omit
   6235  1.7  christos      the DTPREL reloc on the second word of a GD entry under the same
   6236  1.7  christos      condition as that for IE, but ld.so needs to differentiate
   6237  1.7  christos      LD and GD entries.  */
   6238  1.7  christos   if (known && (tls_mask & TLS_TLS) != 0
   6239  1.7  christos       && (tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
   6240  1.7  christos     need -= 4;
   6241  1.7  christos   return need * sizeof (Elf32_External_Rela) / 4;
   6242  1.7  christos }
   6243  1.7  christos 
   6244  1.7  christos /* If H is undefined, make it dynamic if that makes sense.  */
   6245  1.7  christos 
   6246  1.7  christos static bfd_boolean
   6247  1.7  christos ensure_undef_dynamic (struct bfd_link_info *info,
   6248  1.7  christos 		      struct elf_link_hash_entry *h)
   6249  1.7  christos {
   6250  1.1  christos   struct elf_link_hash_table *htab = elf_hash_table (info);
   6251  1.1  christos 
   6252  1.1  christos   if (htab->dynamic_sections_created
   6253  1.1  christos       && ((info->dynamic_undefined_weak != 0
   6254  1.1  christos 	   && h->root.type == bfd_link_hash_undefweak)
   6255  1.1  christos 	  || h->root.type == bfd_link_hash_undefined)
   6256  1.1  christos       && h->dynindx == -1
   6257  1.1  christos       && !h->forced_local
   6258  1.1  christos       && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
   6259  1.7  christos     return bfd_elf_link_record_dynamic_symbol (info, h);
   6260  1.1  christos   return TRUE;
   6261  1.1  christos }
   6262  1.1  christos 
   6263  1.1  christos /* Allocate space in associated reloc sections for dynamic relocs.  */
   6264  1.1  christos 
   6265  1.1  christos static bfd_boolean
   6266  1.3  christos allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
   6267  1.3  christos {
   6268  1.3  christos   struct bfd_link_info *info = inf;
   6269  1.3  christos   struct ppc_elf_link_hash_entry *eh;
   6270  1.3  christos   struct ppc_elf_link_hash_table *htab;
   6271  1.3  christos   struct elf_dyn_relocs *p;
   6272  1.3  christos   bfd_boolean dyn;
   6273  1.1  christos 
   6274  1.1  christos   if (h->root.type == bfd_link_hash_indirect)
   6275  1.1  christos     return TRUE;
   6276  1.1  christos 
   6277  1.7  christos   htab = ppc_elf_hash_table (info);
   6278  1.7  christos   eh = (struct ppc_elf_link_hash_entry *) h;
   6279  1.1  christos   if (eh->elf.got.refcount > 0
   6280  1.1  christos       || (ELIMINATE_COPY_RELOCS
   6281  1.7  christos 	  && !eh->elf.def_regular
   6282  1.1  christos 	  && eh->elf.protected_def
   6283  1.7  christos 	  && eh->has_addr16_ha
   6284  1.7  christos 	  && eh->has_addr16_lo
   6285  1.7  christos 	  && htab->params->pic_fixup > 0))
   6286  1.7  christos     {
   6287  1.7  christos       unsigned int need;
   6288  1.7  christos 
   6289  1.1  christos       /* Make sure this symbol is output as a dynamic symbol.  */
   6290  1.1  christos       if (!ensure_undef_dynamic (info, &eh->elf))
   6291  1.7  christos 	return FALSE;
   6292  1.1  christos 
   6293  1.1  christos       need = 0;
   6294  1.1  christos       if ((eh->tls_mask & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD))
   6295  1.1  christos 	{
   6296  1.1  christos 	  if (!eh->elf.def_dynamic)
   6297  1.3  christos 	    /* We'll just use htab->tlsld_got.offset.  This should
   6298  1.7  christos 	       always be the case.  It's a little odd if we have
   6299  1.7  christos 	       a local dynamic reloc against a non-local symbol.  */
   6300  1.7  christos 	    htab->tlsld_got.refcount += 1;
   6301  1.7  christos 	  else
   6302  1.7  christos 	    need += 8;
   6303  1.7  christos 	}
   6304  1.7  christos       need += got_entries_needed (eh->tls_mask);
   6305  1.7  christos       if (need == 0)
   6306  1.7  christos 	eh->elf.got.offset = (bfd_vma) -1;
   6307  1.3  christos       else
   6308  1.7  christos 	{
   6309  1.7  christos 	  eh->elf.got.offset = allocate_got (htab, need);
   6310  1.7  christos 	  if ((bfd_link_pic (info)
   6311  1.7  christos 	       || (htab->elf.dynamic_sections_created
   6312  1.7  christos 		   && eh->elf.dynindx != -1
   6313  1.3  christos 		   && !SYMBOL_REFERENCES_LOCAL (info, &eh->elf)))
   6314  1.7  christos 	      && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &eh->elf))
   6315  1.7  christos 	    {
   6316  1.1  christos 	      asection *rsec;
   6317  1.1  christos 	      bfd_boolean tprel_known = (bfd_link_executable (info)
   6318  1.1  christos 					 && SYMBOL_REFERENCES_LOCAL (info,
   6319  1.1  christos 								     &eh->elf));
   6320  1.1  christos 
   6321  1.1  christos 	      need = got_relocs_needed (eh->tls_mask, need, tprel_known);
   6322  1.7  christos 	      if ((eh->tls_mask & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD)
   6323  1.7  christos 		  && eh->elf.def_dynamic)
   6324  1.7  christos 		need -= sizeof (Elf32_External_Rela);
   6325  1.7  christos 	      rsec = htab->elf.srelgot;
   6326  1.7  christos 	      if (eh->elf.type == STT_GNU_IFUNC)
   6327  1.7  christos 		rsec = htab->elf.irelplt;
   6328  1.7  christos 	      rsec->size += need;
   6329  1.7  christos 	    }
   6330  1.7  christos 	}
   6331  1.7  christos     }
   6332  1.7  christos   else
   6333  1.7  christos     eh->elf.got.offset = (bfd_vma) -1;
   6334  1.7  christos 
   6335  1.7  christos   /* If no dynamic sections we can't have dynamic relocs, except for
   6336  1.7  christos      IFUNCs which are handled even in static executables.  */
   6337  1.7  christos   if (!htab->elf.dynamic_sections_created
   6338  1.7  christos       && h->type != STT_GNU_IFUNC)
   6339  1.7  christos     eh->dyn_relocs = NULL;
   6340  1.1  christos 
   6341  1.1  christos   /* Discard relocs on undefined symbols that must be local.  */
   6342  1.1  christos   else if (h->root.type == bfd_link_hash_undefined
   6343  1.1  christos 	   && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
   6344  1.1  christos     eh->dyn_relocs = NULL;
   6345  1.1  christos 
   6346  1.7  christos   /* Also discard relocs on undefined weak syms with non-default
   6347  1.1  christos      visibility, or when dynamic_undefined_weak says so.  */
   6348  1.1  christos   else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
   6349  1.1  christos     eh->dyn_relocs = NULL;
   6350  1.1  christos 
   6351  1.1  christos   if (eh->dyn_relocs == NULL)
   6352  1.1  christos     ;
   6353  1.1  christos 
   6354  1.1  christos   /* In the shared -Bsymbolic case, discard space allocated for
   6355  1.1  christos      dynamic pc-relative relocs against symbols which turn out to be
   6356  1.1  christos      defined in regular objects.  For the normal shared case, discard
   6357  1.1  christos      space for relocs that have become local due to symbol visibility
   6358  1.1  christos      changes.  */
   6359  1.1  christos   else if (bfd_link_pic (info))
   6360  1.1  christos     {
   6361  1.1  christos       /* Relocs that use pc_count are those that appear on a call insn,
   6362  1.1  christos 	 or certain REL relocs (see must_be_dyn_reloc) that can be
   6363  1.7  christos 	 generated via assembly.  We want calls to protected symbols to
   6364  1.7  christos 	 resolve directly to the function rather than going via the plt.
   6365  1.7  christos 	 If people want function pointer comparisons to work as expected
   6366  1.7  christos 	 then they should avoid writing weird assembly.  */
   6367  1.7  christos       if (SYMBOL_CALLS_LOCAL (info, h))
   6368  1.7  christos 	{
   6369  1.7  christos 	  struct elf_dyn_relocs **pp;
   6370  1.7  christos 
   6371  1.7  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   6372  1.7  christos 	    {
   6373  1.7  christos 	      p->count -= p->pc_count;
   6374  1.7  christos 	      p->pc_count = 0;
   6375  1.7  christos 	      if (p->count == 0)
   6376  1.7  christos 		*pp = p->next;
   6377  1.7  christos 	      else
   6378  1.7  christos 		pp = &p->next;
   6379  1.7  christos 	    }
   6380  1.7  christos 	}
   6381  1.7  christos 
   6382  1.7  christos       if (htab->is_vxworks)
   6383  1.7  christos 	{
   6384  1.7  christos 	  struct elf_dyn_relocs **pp;
   6385  1.7  christos 
   6386  1.7  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   6387  1.7  christos 	    {
   6388  1.7  christos 	      if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
   6389  1.7  christos 		*pp = p->next;
   6390  1.7  christos 	      else
   6391  1.7  christos 		pp = &p->next;
   6392  1.7  christos 	    }
   6393  1.7  christos 	}
   6394  1.7  christos 
   6395  1.7  christos       if (eh->dyn_relocs != NULL)
   6396  1.7  christos 	{
   6397  1.7  christos 	  /* Make sure this symbol is output as a dynamic symbol.  */
   6398  1.7  christos 	  if (!ensure_undef_dynamic (info, h))
   6399  1.7  christos 	    return FALSE;
   6400  1.7  christos 	}
   6401  1.7  christos     }
   6402  1.7  christos   else if (ELIMINATE_COPY_RELOCS)
   6403  1.7  christos     {
   6404  1.7  christos       /* For the non-pic case, discard space for relocs against
   6405  1.7  christos 	 symbols which turn out to need copy relocs or are not
   6406  1.7  christos 	 dynamic.  */
   6407  1.7  christos       if (h->dynamic_adjusted
   6408  1.7  christos 	  && !h->def_regular
   6409  1.7  christos 	  && !ELF_COMMON_DEF_P (h)
   6410  1.7  christos 	  && !(h->protected_def
   6411  1.7  christos 	       && eh->has_addr16_ha
   6412  1.7  christos 	       && eh->has_addr16_lo
   6413  1.7  christos 	       && htab->params->pic_fixup > 0))
   6414  1.7  christos 	{
   6415  1.7  christos 	  /* Make sure this symbol is output as a dynamic symbol.  */
   6416  1.7  christos 	  if (!ensure_undef_dynamic (info, h))
   6417  1.7  christos 	    return FALSE;
   6418  1.7  christos 
   6419  1.7  christos 	  if (h->dynindx == -1)
   6420  1.7  christos 	    eh->dyn_relocs = NULL;
   6421  1.7  christos 	}
   6422  1.7  christos       else
   6423  1.7  christos 	eh->dyn_relocs = NULL;
   6424  1.7  christos     }
   6425  1.7  christos 
   6426  1.7  christos   /* Allocate space.  */
   6427  1.7  christos   for (p = eh->dyn_relocs; p != NULL; p = p->next)
   6428  1.7  christos     {
   6429  1.7  christos       asection *sreloc = elf_section_data (p->sec)->sreloc;
   6430  1.7  christos       if (eh->elf.type == STT_GNU_IFUNC)
   6431  1.7  christos 	sreloc = htab->elf.irelplt;
   6432  1.7  christos       sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6433  1.7  christos     }
   6434  1.7  christos 
   6435  1.7  christos   /* Handle PLT relocs.  Done last, after dynindx has settled.
   6436  1.7  christos      We might need a PLT entry when the symbol
   6437  1.7  christos      a) is dynamic, or
   6438  1.7  christos      b) is an ifunc, or
   6439  1.7  christos      c) has plt16 relocs and has been processed by adjust_dynamic_symbol, or
   6440  1.7  christos      d) has plt16 relocs and we are linking statically.  */
   6441  1.7  christos   dyn = htab->elf.dynamic_sections_created && h->dynindx != -1;
   6442  1.7  christos   if (dyn
   6443  1.7  christos       || h->type == STT_GNU_IFUNC
   6444  1.7  christos       || (h->needs_plt && h->dynamic_adjusted)
   6445  1.7  christos       || (h->needs_plt
   6446  1.7  christos 	  && h->def_regular
   6447  1.7  christos 	  && !htab->elf.dynamic_sections_created
   6448  1.7  christos 	  && !htab->can_convert_all_inline_plt
   6449  1.7  christos 	  && (ppc_elf_hash_entry (h)->tls_mask
   6450  1.7  christos 	      & (TLS_TLS | PLT_KEEP)) == PLT_KEEP))
   6451  1.7  christos     {
   6452  1.7  christos       struct plt_entry *ent;
   6453  1.7  christos       bfd_boolean doneone = FALSE;
   6454  1.7  christos       bfd_vma plt_offset = 0, glink_offset = (bfd_vma) -1;
   6455  1.7  christos 
   6456  1.7  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   6457  1.7  christos 	if (ent->plt.refcount > 0)
   6458  1.7  christos 	  {
   6459  1.7  christos 	    asection *s = htab->elf.splt;
   6460  1.7  christos 
   6461  1.7  christos 	    if (!dyn)
   6462  1.7  christos 	      {
   6463  1.7  christos 		if (h->type == STT_GNU_IFUNC)
   6464  1.7  christos 		  s = htab->elf.iplt;
   6465  1.7  christos 		else
   6466  1.7  christos 		  s = htab->pltlocal;
   6467  1.7  christos 	      }
   6468  1.7  christos 
   6469  1.7  christos 	    if (htab->plt_type == PLT_NEW || !dyn)
   6470  1.7  christos 	      {
   6471  1.7  christos 		if (!doneone)
   6472  1.7  christos 		  {
   6473  1.7  christos 		    plt_offset = s->size;
   6474  1.7  christos 		    s->size += 4;
   6475  1.7  christos 		  }
   6476  1.7  christos 		ent->plt.offset = plt_offset;
   6477  1.7  christos 
   6478  1.7  christos 		if (s == htab->pltlocal)
   6479  1.7  christos 		  ent->glink_offset = glink_offset;
   6480  1.7  christos 		else
   6481  1.7  christos 		  {
   6482  1.7  christos 		    s = htab->glink;
   6483  1.7  christos 		    if (!doneone || bfd_link_pic (info))
   6484  1.7  christos 		      {
   6485  1.7  christos 			glink_offset = s->size;
   6486  1.7  christos 			s->size += GLINK_ENTRY_SIZE (htab, h);
   6487  1.7  christos 		      }
   6488  1.7  christos 		    if (!doneone
   6489  1.7  christos 			&& !bfd_link_pic (info)
   6490  1.7  christos 			&& h->def_dynamic
   6491  1.7  christos 			&& !h->def_regular)
   6492  1.7  christos 		      {
   6493  1.7  christos 			h->root.u.def.section = s;
   6494  1.7  christos 			h->root.u.def.value = glink_offset;
   6495  1.7  christos 		      }
   6496  1.7  christos 		    ent->glink_offset = glink_offset;
   6497  1.7  christos 
   6498  1.7  christos 		    if (htab->params->emit_stub_syms
   6499  1.7  christos 			&& !add_stub_sym (ent, h, info))
   6500  1.7  christos 		      return FALSE;
   6501  1.7  christos 		  }
   6502  1.7  christos 	      }
   6503  1.7  christos 	    else
   6504  1.7  christos 	      {
   6505  1.7  christos 		if (!doneone)
   6506  1.7  christos 		  {
   6507  1.7  christos 		    /* If this is the first .plt entry, make room
   6508  1.7  christos 		       for the special first entry.  */
   6509  1.7  christos 		    if (s->size == 0)
   6510  1.7  christos 		      s->size += htab->plt_initial_entry_size;
   6511  1.7  christos 
   6512  1.7  christos 		    /* The PowerPC PLT is actually composed of two
   6513  1.7  christos 		       parts, the first part is 2 words (for a load
   6514  1.7  christos 		       and a jump), and then there is a remaining
   6515  1.7  christos 		       word available at the end.  */
   6516  1.7  christos 		    plt_offset = (htab->plt_initial_entry_size
   6517  1.7  christos 				  + (htab->plt_slot_size
   6518  1.7  christos 				     * ((s->size
   6519  1.7  christos 					 - htab->plt_initial_entry_size)
   6520  1.7  christos 					/ htab->plt_entry_size)));
   6521  1.7  christos 
   6522  1.7  christos 		    /* If this symbol is not defined in a regular
   6523  1.1  christos 		       file, and we are not generating a shared
   6524  1.7  christos 		       library, then set the symbol to this location
   6525  1.7  christos 		       in the .plt.  This is to avoid text
   6526  1.7  christos 		       relocations, and is required to make
   6527  1.7  christos 		       function pointers compare as equal between
   6528  1.7  christos 		       the normal executable and the shared library.  */
   6529  1.7  christos 		    if (! bfd_link_pic (info)
   6530  1.7  christos 			&& h->def_dynamic
   6531  1.7  christos 			&& !h->def_regular)
   6532  1.7  christos 		      {
   6533  1.7  christos 			h->root.u.def.section = s;
   6534  1.7  christos 			h->root.u.def.value = plt_offset;
   6535  1.7  christos 		      }
   6536  1.1  christos 
   6537  1.7  christos 		    /* Make room for this entry.  */
   6538  1.7  christos 		    s->size += htab->plt_entry_size;
   6539  1.7  christos 		    /* After the 8192nd entry, room for two entries
   6540  1.7  christos 		       is allocated.  */
   6541  1.7  christos 		    if (htab->plt_type == PLT_OLD
   6542  1.7  christos 			&& (s->size - htab->plt_initial_entry_size)
   6543  1.7  christos 			/ htab->plt_entry_size
   6544  1.7  christos 			> PLT_NUM_SINGLE_ENTRIES)
   6545  1.7  christos 		      s->size += htab->plt_entry_size;
   6546  1.7  christos 		  }
   6547  1.7  christos 		ent->plt.offset = plt_offset;
   6548  1.7  christos 	      }
   6549  1.7  christos 
   6550  1.7  christos 	    /* We also need to make an entry in the .rela.plt section.  */
   6551  1.7  christos 	    if (!doneone)
   6552  1.7  christos 	      {
   6553  1.7  christos 		if (!dyn)
   6554  1.7  christos 		  {
   6555  1.7  christos 		    if (h->type == STT_GNU_IFUNC)
   6556  1.1  christos 		      {
   6557  1.7  christos 			s = htab->elf.irelplt;
   6558  1.7  christos 			s->size += sizeof (Elf32_External_Rela);
   6559  1.7  christos 		      }
   6560  1.7  christos 		    else if (bfd_link_pic (info))
   6561  1.7  christos 		      {
   6562  1.7  christos 			s = htab->relpltlocal;
   6563  1.7  christos 			s->size += sizeof (Elf32_External_Rela);
   6564  1.7  christos 		      }
   6565  1.7  christos 		  }
   6566  1.7  christos 		else
   6567  1.7  christos 		  {
   6568  1.7  christos 		    htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
   6569  1.7  christos 
   6570  1.1  christos 		    if (htab->plt_type == PLT_VXWORKS)
   6571  1.7  christos 		      {
   6572  1.7  christos 			/* Allocate space for the unloaded relocations.  */
   6573  1.7  christos 			if (!bfd_link_pic (info)
   6574  1.7  christos 			    && htab->elf.dynamic_sections_created)
   6575  1.1  christos 			  {
   6576  1.7  christos 			    if (ent->plt.offset
   6577  1.7  christos 				== (bfd_vma) htab->plt_initial_entry_size)
   6578  1.7  christos 			      {
   6579  1.7  christos 				htab->srelplt2->size
   6580  1.7  christos 				  += (sizeof (Elf32_External_Rela)
   6581  1.7  christos 				      * VXWORKS_PLTRESOLVE_RELOCS);
   6582  1.7  christos 			      }
   6583  1.7  christos 
   6584  1.7  christos 			    htab->srelplt2->size
   6585  1.7  christos 			      += (sizeof (Elf32_External_Rela)
   6586  1.1  christos 				  * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
   6587  1.7  christos 			  }
   6588  1.1  christos 
   6589  1.7  christos 			/* Every PLT entry has an associated GOT entry in
   6590  1.7  christos 			   .got.plt.  */
   6591  1.1  christos 			htab->elf.sgotplt->size += 4;
   6592  1.1  christos 		      }
   6593  1.7  christos 		  }
   6594  1.1  christos 		doneone = TRUE;
   6595  1.7  christos 	      }
   6596  1.7  christos 	  }
   6597  1.1  christos 	else
   6598  1.1  christos 	  ent->plt.offset = (bfd_vma) -1;
   6599  1.1  christos 
   6600  1.1  christos       if (!doneone)
   6601  1.1  christos 	{
   6602  1.1  christos 	  h->plt.plist = NULL;
   6603  1.1  christos 	  h->needs_plt = 0;
   6604  1.1  christos 	}
   6605  1.1  christos     }
   6606  1.7  christos   else
   6607  1.1  christos     {
   6608  1.7  christos       h->plt.plist = NULL;
   6609  1.7  christos       h->needs_plt = 0;
   6610  1.1  christos     }
   6611  1.1  christos 
   6612  1.1  christos   return TRUE;
   6613  1.7  christos }
   6614  1.7  christos 
   6615  1.1  christos /* Set DF_TEXTREL if we find any dynamic relocs that apply to
   6616  1.7  christos    read-only sections.  */
   6617  1.7  christos 
   6618  1.7  christos static bfd_boolean
   6619  1.7  christos maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
   6620  1.7  christos {
   6621  1.7  christos   asection *sec;
   6622  1.7  christos 
   6623  1.7  christos   if (h->root.type == bfd_link_hash_indirect)
   6624  1.7  christos     return TRUE;
   6625  1.7  christos 
   6626  1.7  christos   sec = readonly_dynrelocs (h);
   6627  1.7  christos   if (sec != NULL)
   6628  1.7  christos     {
   6629  1.1  christos       struct bfd_link_info *info = (struct bfd_link_info *) info_p;
   6630  1.1  christos 
   6631  1.1  christos       info->flags |= DF_TEXTREL;
   6632  1.1  christos       /* xgettext:c-format */
   6633  1.1  christos       info->callbacks->minfo (_("%pB: dynamic relocation against `%pT' "
   6634  1.1  christos 				"in read-only section `%pA'\n"),
   6635  1.1  christos 			      sec->owner, h->root.root.string, sec);
   6636  1.1  christos       if ((info->warn_shared_textrel && bfd_link_pic (info))
   6637  1.1  christos 	  || info->error_textrel)
   6638  1.1  christos 	/* xgettext:c-format */
   6639  1.1  christos 	info->callbacks->einfo (_("%P: %pB: warning: relocation against `%s' "
   6640  1.1  christos 				  "in read-only section `%pA'\n"),
   6641  1.1  christos 				sec->owner, h->root.root.string, sec);
   6642  1.1  christos 
   6643  1.1  christos       /* Not an error, just cut short the traversal.  */
   6644  1.1  christos       return FALSE;
   6645  1.1  christos     }
   6646  1.1  christos   return TRUE;
   6647  1.1  christos }
   6648  1.1  christos 
   6649  1.1  christos static const unsigned char glink_eh_frame_cie[] =
   6650  1.1  christos {
   6651  1.1  christos   0, 0, 0, 16,				/* length.  */
   6652  1.1  christos   0, 0, 0, 0,				/* id.  */
   6653  1.3  christos   1,					/* CIE version.  */
   6654  1.1  christos   'z', 'R', 0,				/* Augmentation string.  */
   6655  1.1  christos   4,					/* Code alignment.  */
   6656  1.1  christos   0x7c,					/* Data alignment.  */
   6657  1.1  christos   65,					/* RA reg.  */
   6658  1.1  christos   1,					/* Augmentation size.  */
   6659  1.1  christos   DW_EH_PE_pcrel | DW_EH_PE_sdata4,	/* FDE encoding.  */
   6660  1.1  christos   DW_CFA_def_cfa, 1, 0			/* def_cfa: r1 offset 0.  */
   6661  1.1  christos };
   6662  1.1  christos 
   6663  1.1  christos /* Set the sizes of the dynamic sections.  */
   6664  1.1  christos 
   6665  1.1  christos static bfd_boolean
   6666  1.1  christos ppc_elf_size_dynamic_sections (bfd *output_bfd,
   6667  1.1  christos 			       struct bfd_link_info *info)
   6668  1.1  christos {
   6669  1.1  christos   struct ppc_elf_link_hash_table *htab;
   6670  1.1  christos   asection *s;
   6671  1.3  christos   bfd_boolean relocs;
   6672  1.1  christos   bfd *ibfd;
   6673  1.1  christos 
   6674  1.1  christos #ifdef DEBUG
   6675  1.1  christos   fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
   6676  1.1  christos #endif
   6677  1.1  christos 
   6678  1.1  christos   htab = ppc_elf_hash_table (info);
   6679  1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL);
   6680  1.1  christos 
   6681  1.1  christos   if (elf_hash_table (info)->dynamic_sections_created)
   6682  1.1  christos     {
   6683  1.1  christos       /* Set the contents of the .interp section to the interpreter.  */
   6684  1.1  christos       if (bfd_link_executable (info) && !info->nointerp)
   6685  1.1  christos 	{
   6686  1.1  christos 	  s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
   6687  1.3  christos 	  BFD_ASSERT (s != NULL);
   6688  1.1  christos 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
   6689  1.1  christos 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
   6690  1.1  christos 	}
   6691  1.1  christos     }
   6692  1.1  christos 
   6693  1.1  christos   if (htab->plt_type == PLT_OLD)
   6694  1.1  christos     htab->got_header_size = 16;
   6695  1.1  christos   else if (htab->plt_type == PLT_NEW)
   6696  1.1  christos     htab->got_header_size = 12;
   6697  1.1  christos 
   6698  1.1  christos   /* Set up .got offsets for local syms, and space for local dynamic
   6699  1.1  christos      relocs.  */
   6700  1.1  christos   for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   6701  1.1  christos     {
   6702  1.3  christos       bfd_signed_vma *local_got;
   6703  1.1  christos       bfd_signed_vma *end_local_got;
   6704  1.3  christos       struct plt_entry **local_plt;
   6705  1.1  christos       struct plt_entry **end_local_plt;
   6706  1.1  christos       char *lgot_masks;
   6707  1.1  christos       bfd_size_type locsymcount;
   6708  1.1  christos       Elf_Internal_Shdr *symtab_hdr;
   6709  1.1  christos 
   6710  1.1  christos       if (!is_ppc_elf (ibfd))
   6711  1.1  christos 	continue;
   6712  1.1  christos 
   6713  1.1  christos       for (s = ibfd->sections; s != NULL; s = s->next)
   6714  1.1  christos 	{
   6715  1.1  christos 	  struct ppc_dyn_relocs *p;
   6716  1.1  christos 
   6717  1.1  christos 	  for (p = ((struct ppc_dyn_relocs *)
   6718  1.1  christos 		    elf_section_data (s)->local_dynrel);
   6719  1.1  christos 	       p != NULL;
   6720  1.1  christos 	       p = p->next)
   6721  1.1  christos 	    {
   6722  1.1  christos 	      if (!bfd_is_abs_section (p->sec)
   6723  1.1  christos 		  && bfd_is_abs_section (p->sec->output_section))
   6724  1.1  christos 		{
   6725  1.1  christos 		  /* Input section has been discarded, either because
   6726  1.1  christos 		     it is a copy of a linkonce section or due to
   6727  1.3  christos 		     linker script /DISCARD/, so we'll be discarding
   6728  1.7  christos 		     the relocs too.  */
   6729  1.1  christos 		}
   6730  1.1  christos 	      else if (htab->is_vxworks
   6731  1.1  christos 		       && strcmp (p->sec->output_section->name,
   6732  1.1  christos 				  ".tls_vars") == 0)
   6733  1.7  christos 		{
   6734  1.7  christos 		  /* Relocations in vxworks .tls_vars sections are
   6735  1.7  christos 		     handled specially by the loader.  */
   6736  1.7  christos 		}
   6737  1.7  christos 	      else if (p->count != 0)
   6738  1.1  christos 		{
   6739  1.1  christos 		  asection *sreloc = elf_section_data (p->sec)->sreloc;
   6740  1.1  christos 		  if (p->ifunc)
   6741  1.1  christos 		    sreloc = htab->elf.irelplt;
   6742  1.1  christos 		  sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6743  1.1  christos 		  if ((p->sec->output_section->flags
   6744  1.1  christos 		       & (SEC_READONLY | SEC_ALLOC))
   6745  1.1  christos 		      == (SEC_READONLY | SEC_ALLOC))
   6746  1.1  christos 		    {
   6747  1.1  christos 		      info->flags |= DF_TEXTREL;
   6748  1.1  christos 		      info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
   6749  1.1  christos 					      p->sec->owner, p->sec);
   6750  1.1  christos 		    }
   6751  1.1  christos 		}
   6752  1.1  christos 	    }
   6753  1.1  christos 	}
   6754  1.1  christos 
   6755  1.1  christos       local_got = elf_local_got_refcounts (ibfd);
   6756  1.7  christos       if (!local_got)
   6757  1.7  christos 	continue;
   6758  1.7  christos 
   6759  1.7  christos       symtab_hdr = &elf_symtab_hdr (ibfd);
   6760  1.1  christos       locsymcount = symtab_hdr->sh_info;
   6761  1.1  christos       end_local_got = local_got + locsymcount;
   6762  1.1  christos       local_plt = (struct plt_entry **) end_local_got;
   6763  1.1  christos       end_local_plt = local_plt + locsymcount;
   6764  1.1  christos       lgot_masks = (char *) end_local_plt;
   6765  1.3  christos 
   6766  1.3  christos       for (; local_got < end_local_got; ++local_got, ++lgot_masks)
   6767  1.7  christos 	if (*local_got > 0)
   6768  1.7  christos 	  {
   6769  1.7  christos 	    unsigned int need;
   6770  1.7  christos 	    if ((*lgot_masks & (TLS_TLS | TLS_LD)) == (TLS_TLS | TLS_LD))
   6771  1.7  christos 	      htab->tlsld_got.refcount += 1;
   6772  1.7  christos 	    need = got_entries_needed (*lgot_masks);
   6773  1.7  christos 	    if (need == 0)
   6774  1.7  christos 	      *local_got = (bfd_vma) -1;
   6775  1.3  christos 	    else
   6776  1.1  christos 	      {
   6777  1.1  christos 		*local_got = allocate_got (htab, need);
   6778  1.1  christos 		if (bfd_link_pic (info))
   6779  1.1  christos 		  {
   6780  1.1  christos 		    asection *srel;
   6781  1.1  christos 		    bfd_boolean tprel_known = bfd_link_executable (info);
   6782  1.1  christos 
   6783  1.1  christos 		    need = got_relocs_needed (*lgot_masks, need, tprel_known);
   6784  1.1  christos 		    srel = htab->elf.srelgot;
   6785  1.7  christos 		    if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
   6786  1.7  christos 		      srel = htab->elf.irelplt;
   6787  1.1  christos 		    srel->size += need;
   6788  1.1  christos 		  }
   6789  1.1  christos 	      }
   6790  1.7  christos 	  }
   6791  1.1  christos 	else
   6792  1.1  christos 	  *local_got = (bfd_vma) -1;
   6793  1.1  christos 
   6794  1.1  christos       if (htab->is_vxworks)
   6795  1.7  christos 	continue;
   6796  1.7  christos 
   6797  1.7  christos       /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt.  */
   6798  1.7  christos       lgot_masks = (char *) end_local_plt;
   6799  1.7  christos       for (; local_plt < end_local_plt; ++local_plt, ++lgot_masks)
   6800  1.7  christos 	{
   6801  1.7  christos 	  struct plt_entry *ent;
   6802  1.7  christos 	  bfd_boolean doneone = FALSE;
   6803  1.7  christos 	  bfd_vma plt_offset = 0, glink_offset = (bfd_vma) -1;
   6804  1.7  christos 
   6805  1.1  christos 	  for (ent = *local_plt; ent != NULL; ent = ent->next)
   6806  1.1  christos 	    if (ent->plt.refcount > 0)
   6807  1.1  christos 	      {
   6808  1.1  christos 		if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
   6809  1.1  christos 		  s = htab->elf.iplt;
   6810  1.1  christos 		else if (htab->can_convert_all_inline_plt
   6811  1.1  christos 			 || (*lgot_masks & (TLS_TLS | PLT_KEEP)) != PLT_KEEP)
   6812  1.1  christos 		  {
   6813  1.7  christos 		    ent->plt.offset = (bfd_vma) -1;
   6814  1.1  christos 		    continue;
   6815  1.7  christos 		  }
   6816  1.1  christos 		else
   6817  1.7  christos 		  s = htab->pltlocal;
   6818  1.1  christos 
   6819  1.1  christos 		if (!doneone)
   6820  1.1  christos 		  {
   6821  1.1  christos 		    plt_offset = s->size;
   6822  1.1  christos 		    s->size += 4;
   6823  1.7  christos 		  }
   6824  1.7  christos 		ent->plt.offset = plt_offset;
   6825  1.7  christos 
   6826  1.7  christos 		if (s != htab->pltlocal && (!doneone || bfd_link_pic (info)))
   6827  1.7  christos 		  {
   6828  1.7  christos 		    s = htab->glink;
   6829  1.7  christos 		    glink_offset = s->size;
   6830  1.7  christos 		    s->size += GLINK_ENTRY_SIZE (htab, NULL);
   6831  1.7  christos 		  }
   6832  1.7  christos 		ent->glink_offset = glink_offset;
   6833  1.1  christos 
   6834  1.1  christos 		if (!doneone)
   6835  1.1  christos 		  {
   6836  1.1  christos 		    if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC)
   6837  1.1  christos 		      {
   6838  1.1  christos 			s = htab->elf.irelplt;
   6839  1.1  christos 			s->size += sizeof (Elf32_External_Rela);
   6840  1.1  christos 		      }
   6841  1.1  christos 		    else if (bfd_link_pic (info))
   6842  1.1  christos 		      {
   6843  1.1  christos 			s = htab->relpltlocal;
   6844  1.1  christos 			s->size += sizeof (Elf32_External_Rela);
   6845  1.1  christos 		      }
   6846  1.1  christos 		    doneone = TRUE;
   6847  1.3  christos 		  }
   6848  1.7  christos 	      }
   6849  1.1  christos 	    else
   6850  1.1  christos 	      ent->plt.offset = (bfd_vma) -1;
   6851  1.1  christos 	}
   6852  1.1  christos     }
   6853  1.7  christos 
   6854  1.1  christos   /* Allocate space for global sym dynamic relocs.  */
   6855  1.1  christos   elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
   6856  1.1  christos 
   6857  1.1  christos   if (htab->tlsld_got.refcount > 0)
   6858  1.1  christos     {
   6859  1.1  christos       htab->tlsld_got.offset = allocate_got (htab, 8);
   6860  1.1  christos       if (bfd_link_pic (info))
   6861  1.7  christos 	htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
   6862  1.1  christos     }
   6863  1.7  christos   else
   6864  1.1  christos     htab->tlsld_got.offset = (bfd_vma) -1;
   6865  1.1  christos 
   6866  1.7  christos   if (htab->elf.sgot != NULL && htab->plt_type != PLT_VXWORKS)
   6867  1.1  christos     {
   6868  1.1  christos       unsigned int g_o_t = 32768;
   6869  1.1  christos 
   6870  1.1  christos       /* If we haven't allocated the header, do so now.  When we get here,
   6871  1.3  christos 	 for old plt/got the got size will be 0 to 32764 (not allocated),
   6872  1.1  christos 	 or 32780 to 65536 (header allocated).  For new plt/got, the
   6873  1.1  christos 	 corresponding ranges are 0 to 32768 and 32780 to 65536.  */
   6874  1.3  christos       if (htab->elf.sgot->size <= 32768)
   6875  1.3  christos 	{
   6876  1.3  christos 	  g_o_t = htab->elf.sgot->size;
   6877  1.3  christos 	  if (htab->plt_type == PLT_OLD)
   6878  1.3  christos 	    g_o_t += 4;
   6879  1.3  christos 	  htab->elf.sgot->size += htab->got_header_size;
   6880  1.3  christos 	}
   6881  1.3  christos 
   6882  1.3  christos       htab->elf.hgot->root.u.def.value = g_o_t;
   6883  1.3  christos     }
   6884  1.3  christos   if (bfd_link_pic (info))
   6885  1.3  christos     {
   6886  1.3  christos       struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   6887  1.1  christos 
   6888  1.1  christos       sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
   6889  1.1  christos       sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
   6890  1.1  christos     }
   6891  1.1  christos   if (info->emitrelocations)
   6892  1.1  christos     {
   6893  1.1  christos       struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   6894  1.1  christos 
   6895  1.7  christos       if (sda != NULL && sda->ref_regular)
   6896  1.7  christos 	sda->root.u.def.section->flags |= SEC_KEEP;
   6897  1.1  christos       sda = htab->sdata[1].sym;
   6898  1.3  christos       if (sda != NULL && sda->ref_regular)
   6899  1.3  christos 	sda->root.u.def.section->flags |= SEC_KEEP;
   6900  1.1  christos     }
   6901  1.1  christos 
   6902  1.3  christos   if (htab->glink != NULL
   6903  1.1  christos       && htab->glink->size != 0
   6904  1.1  christos       && htab->elf.dynamic_sections_created)
   6905  1.1  christos     {
   6906  1.1  christos       htab->glink_pltresolve = htab->glink->size;
   6907  1.1  christos       /* Space for the branch table.  */
   6908  1.1  christos       htab->glink->size
   6909  1.1  christos 	+= htab->elf.srelplt->size / (sizeof (Elf32_External_Rela) / 4) - 4;
   6910  1.1  christos       /* Pad out to align the start of PLTresolve.  */
   6911  1.1  christos       htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround
   6912  1.1  christos 						 ? 63 : 15);
   6913  1.1  christos       htab->glink->size += GLINK_PLTRESOLVE;
   6914  1.1  christos 
   6915  1.1  christos       if (htab->params->emit_stub_syms)
   6916  1.1  christos 	{
   6917  1.1  christos 	  struct elf_link_hash_entry *sh;
   6918  1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink",
   6919  1.3  christos 				     TRUE, FALSE, FALSE);
   6920  1.1  christos 	  if (sh == NULL)
   6921  1.1  christos 	    return FALSE;
   6922  1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6923  1.1  christos 	    {
   6924  1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6925  1.1  christos 	      sh->root.u.def.section = htab->glink;
   6926  1.1  christos 	      sh->root.u.def.value = htab->glink_pltresolve;
   6927  1.1  christos 	      sh->ref_regular = 1;
   6928  1.1  christos 	      sh->def_regular = 1;
   6929  1.1  christos 	      sh->ref_regular_nonweak = 1;
   6930  1.1  christos 	      sh->forced_local = 1;
   6931  1.1  christos 	      sh->non_elf = 0;
   6932  1.1  christos 	      sh->root.linker_def = 1;
   6933  1.1  christos 	    }
   6934  1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
   6935  1.3  christos 				     TRUE, FALSE, FALSE);
   6936  1.1  christos 	  if (sh == NULL)
   6937  1.1  christos 	    return FALSE;
   6938  1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6939  1.1  christos 	    {
   6940  1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6941  1.1  christos 	      sh->root.u.def.section = htab->glink;
   6942  1.1  christos 	      sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
   6943  1.1  christos 	      sh->ref_regular = 1;
   6944  1.1  christos 	      sh->def_regular = 1;
   6945  1.1  christos 	      sh->ref_regular_nonweak = 1;
   6946  1.1  christos 	      sh->forced_local = 1;
   6947  1.1  christos 	      sh->non_elf = 0;
   6948  1.3  christos 	      sh->root.linker_def = 1;
   6949  1.1  christos 	    }
   6950  1.1  christos 	}
   6951  1.1  christos     }
   6952  1.1  christos 
   6953  1.1  christos   if (htab->glink != NULL
   6954  1.1  christos       && htab->glink->size != 0
   6955  1.1  christos       && htab->glink_eh_frame != NULL
   6956  1.1  christos       && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
   6957  1.1  christos       && _bfd_elf_eh_frame_present (info))
   6958  1.1  christos     {
   6959  1.1  christos       s = htab->glink_eh_frame;
   6960  1.1  christos       s->size = sizeof (glink_eh_frame_cie) + 20;
   6961  1.1  christos       if (bfd_link_pic (info))
   6962  1.1  christos 	{
   6963  1.1  christos 	  s->size += 4;
   6964  1.1  christos 	  if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
   6965  1.1  christos 	    s->size += 4;
   6966  1.7  christos 	}
   6967  1.7  christos     }
   6968  1.1  christos 
   6969  1.1  christos   /* We've now determined the sizes of the various dynamic sections.
   6970  1.1  christos      Allocate memory for them.  */
   6971  1.1  christos   relocs = FALSE;
   6972  1.1  christos   for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
   6973  1.1  christos     {
   6974  1.1  christos       bfd_boolean strip_section = TRUE;
   6975  1.1  christos 
   6976  1.1  christos       if ((s->flags & SEC_LINKER_CREATED) == 0)
   6977  1.7  christos 	continue;
   6978  1.7  christos 
   6979  1.1  christos       if (s == htab->elf.splt
   6980  1.1  christos 	  || s == htab->elf.sgot)
   6981  1.7  christos 	{
   6982  1.1  christos 	  /* We'd like to strip these sections if they aren't needed, but if
   6983  1.7  christos 	     we've exported dynamic symbols from them we must leave them.
   6984  1.7  christos 	     It's too late to tell BFD to get rid of the symbols.  */
   6985  1.3  christos 	  if (htab->elf.hplt != NULL)
   6986  1.3  christos 	    strip_section = FALSE;
   6987  1.3  christos 	  /* Strip this section if we don't need it; see the
   6988  1.3  christos 	     comment below.  */
   6989  1.3  christos 	}
   6990  1.1  christos       else if (s == htab->elf.iplt
   6991  1.1  christos 	       || s == htab->pltlocal
   6992  1.3  christos 	       || s == htab->glink
   6993  1.1  christos 	       || s == htab->glink_eh_frame
   6994  1.1  christos 	       || s == htab->elf.sgotplt
   6995  1.1  christos 	       || s == htab->sbss
   6996  1.1  christos 	       || s == htab->elf.sdynbss
   6997  1.1  christos 	       || s == htab->elf.sdynrelro
   6998  1.1  christos 	       || s == htab->dynsbss)
   6999  1.1  christos 	{
   7000  1.1  christos 	  /* Strip these too.  */
   7001  1.1  christos 	}
   7002  1.1  christos       else if (s == htab->sdata[0].section
   7003  1.1  christos 	       || s == htab->sdata[1].section)
   7004  1.1  christos 	{
   7005  1.1  christos 	  strip_section = (s->flags & SEC_KEEP) == 0;
   7006  1.1  christos 	}
   7007  1.1  christos       else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
   7008  1.1  christos 			     ".rela"))
   7009  1.1  christos 	{
   7010  1.1  christos 	  if (s->size != 0)
   7011  1.1  christos 	    {
   7012  1.1  christos 	      /* Remember whether there are any relocation sections.  */
   7013  1.1  christos 	      relocs = TRUE;
   7014  1.1  christos 
   7015  1.1  christos 	      /* We use the reloc_count field as a counter if we need
   7016  1.1  christos 		 to copy relocs into the output file.  */
   7017  1.1  christos 	      s->reloc_count = 0;
   7018  1.1  christos 	    }
   7019  1.1  christos 	}
   7020  1.1  christos       else
   7021  1.1  christos 	{
   7022  1.1  christos 	  /* It's not one of our sections, so don't allocate space.  */
   7023  1.1  christos 	  continue;
   7024  1.1  christos 	}
   7025  1.1  christos 
   7026  1.1  christos       if (s->size == 0 && strip_section)
   7027  1.1  christos 	{
   7028  1.1  christos 	  /* If we don't need this section, strip it from the
   7029  1.1  christos 	     output file.  This is mostly to handle .rela.bss and
   7030  1.1  christos 	     .rela.plt.  We must create both sections in
   7031  1.1  christos 	     create_dynamic_sections, because they must be created
   7032  1.1  christos 	     before the linker maps input sections to output
   7033  1.1  christos 	     sections.  The linker does that before
   7034  1.1  christos 	     adjust_dynamic_symbol is called, and it is that
   7035  1.1  christos 	     function which decides whether anything needs to go
   7036  1.1  christos 	     into these sections.  */
   7037  1.1  christos 	  s->flags |= SEC_EXCLUDE;
   7038  1.1  christos 	  continue;
   7039  1.1  christos 	}
   7040  1.1  christos 
   7041  1.1  christos       if ((s->flags & SEC_HAS_CONTENTS) == 0)
   7042  1.1  christos 	continue;
   7043  1.1  christos 
   7044  1.1  christos       /* Allocate memory for the section contents.  */
   7045  1.1  christos       s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
   7046  1.1  christos       if (s->contents == NULL)
   7047  1.3  christos 	return FALSE;
   7048  1.1  christos     }
   7049  1.1  christos 
   7050  1.1  christos   if (htab->elf.dynamic_sections_created)
   7051  1.1  christos     {
   7052  1.1  christos       /* Add some entries to the .dynamic section.  We fill in the
   7053  1.7  christos 	 values later, in ppc_elf_finish_dynamic_sections, but we
   7054  1.1  christos 	 must add the entries now so that we get the correct size for
   7055  1.1  christos 	 the .dynamic section.  The DT_DEBUG entry is filled in by the
   7056  1.1  christos 	 dynamic linker and used by the debugger.  */
   7057  1.1  christos #define add_dynamic_entry(TAG, VAL) \
   7058  1.1  christos   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
   7059  1.1  christos 
   7060  1.1  christos       if (bfd_link_executable (info))
   7061  1.1  christos 	{
   7062  1.3  christos 	  if (!add_dynamic_entry (DT_DEBUG, 0))
   7063  1.3  christos 	    return FALSE;
   7064  1.3  christos 	}
   7065  1.1  christos 
   7066  1.1  christos       if (htab->elf.splt != NULL && htab->elf.splt->size != 0)
   7067  1.1  christos 	{
   7068  1.3  christos 	  if (!add_dynamic_entry (DT_PLTGOT, 0)
   7069  1.1  christos 	      || !add_dynamic_entry (DT_PLTRELSZ, 0)
   7070  1.1  christos 	      || !add_dynamic_entry (DT_PLTREL, DT_RELA)
   7071  1.3  christos 	      || !add_dynamic_entry (DT_JMPREL, 0))
   7072  1.1  christos 	    return FALSE;
   7073  1.1  christos 	}
   7074  1.1  christos 
   7075  1.1  christos       if (htab->plt_type == PLT_NEW
   7076  1.1  christos 	  && htab->glink != NULL
   7077  1.1  christos 	  && htab->glink->size != 0)
   7078  1.1  christos 	{
   7079  1.1  christos 	  if (!add_dynamic_entry (DT_PPC_GOT, 0))
   7080  1.1  christos 	    return FALSE;
   7081  1.1  christos 	  if (!htab->params->no_tls_get_addr_opt
   7082  1.1  christos 	      && htab->tls_get_addr != NULL
   7083  1.1  christos 	      && htab->tls_get_addr->plt.plist != NULL
   7084  1.1  christos 	      && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
   7085  1.1  christos 	    return FALSE;
   7086  1.1  christos 	}
   7087  1.1  christos 
   7088  1.1  christos       if (relocs)
   7089  1.1  christos 	{
   7090  1.1  christos 	  if (!add_dynamic_entry (DT_RELA, 0)
   7091  1.1  christos 	      || !add_dynamic_entry (DT_RELASZ, 0)
   7092  1.1  christos 	      || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
   7093  1.1  christos 	    return FALSE;
   7094  1.1  christos 	}
   7095  1.1  christos 
   7096  1.1  christos       /* If any dynamic relocs apply to a read-only section, then we
   7097  1.1  christos 	 need a DT_TEXTREL entry.  */
   7098  1.1  christos       if ((info->flags & DF_TEXTREL) == 0)
   7099  1.1  christos 	elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
   7100  1.1  christos 				info);
   7101  1.1  christos 
   7102  1.1  christos       if ((info->flags & DF_TEXTREL) != 0)
   7103  1.1  christos 	{
   7104  1.1  christos 	  if (!add_dynamic_entry (DT_TEXTREL, 0))
   7105  1.1  christos 	    return FALSE;
   7106  1.1  christos 	}
   7107  1.1  christos       if (htab->is_vxworks
   7108  1.1  christos 	  && !elf_vxworks_add_dynamic_entries (output_bfd, info))
   7109  1.1  christos 	return FALSE;
   7110  1.1  christos    }
   7111  1.1  christos #undef add_dynamic_entry
   7112  1.1  christos 
   7113  1.1  christos   if (htab->glink_eh_frame != NULL
   7114  1.1  christos       && htab->glink_eh_frame->contents != NULL)
   7115  1.1  christos     {
   7116  1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   7117  1.1  christos       bfd_vma val;
   7118  1.1  christos 
   7119  1.1  christos       memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
   7120  1.1  christos       /* CIE length (rewrite in case little-endian).  */
   7121  1.1  christos       bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
   7122  1.1  christos       p += sizeof (glink_eh_frame_cie);
   7123  1.1  christos       /* FDE length.  */
   7124  1.1  christos       val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
   7125  1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   7126  1.3  christos       p += 4;
   7127  1.1  christos       /* CIE pointer.  */
   7128  1.1  christos       val = p - htab->glink_eh_frame->contents;
   7129  1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   7130  1.1  christos       p += 4;
   7131  1.1  christos       /* Offset to .glink.  Set later.  */
   7132  1.1  christos       p += 4;
   7133  1.1  christos       /* .glink size.  */
   7134  1.1  christos       bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
   7135  1.1  christos       p += 4;
   7136  1.1  christos       /* Augmentation.  */
   7137  1.1  christos       p += 1;
   7138  1.1  christos 
   7139  1.1  christos       if (bfd_link_pic (info)
   7140  1.1  christos 	  && htab->elf.dynamic_sections_created)
   7141  1.1  christos 	{
   7142  1.1  christos 	  bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
   7143  1.1  christos 	  if (adv < 64)
   7144  1.1  christos 	    *p++ = DW_CFA_advance_loc + adv;
   7145  1.1  christos 	  else if (adv < 256)
   7146  1.1  christos 	    {
   7147  1.1  christos 	      *p++ = DW_CFA_advance_loc1;
   7148  1.1  christos 	      *p++ = adv;
   7149  1.1  christos 	    }
   7150  1.1  christos 	  else if (adv < 65536)
   7151  1.1  christos 	    {
   7152  1.1  christos 	      *p++ = DW_CFA_advance_loc2;
   7153  1.1  christos 	      bfd_put_16 (htab->elf.dynobj, adv, p);
   7154  1.1  christos 	      p += 2;
   7155  1.1  christos 	    }
   7156  1.1  christos 	  else
   7157  1.1  christos 	    {
   7158  1.1  christos 	      *p++ = DW_CFA_advance_loc4;
   7159  1.1  christos 	      bfd_put_32 (htab->elf.dynobj, adv, p);
   7160  1.1  christos 	      p += 4;
   7161  1.1  christos 	    }
   7162  1.1  christos 	  *p++ = DW_CFA_register;
   7163  1.3  christos 	  *p++ = 65;
   7164  1.3  christos 	  p++;
   7165  1.3  christos 	  *p++ = DW_CFA_advance_loc + 4;
   7166  1.3  christos 	  *p++ = DW_CFA_restore_extended;
   7167  1.3  christos 	  *p++ = 65;
   7168  1.3  christos 	}
   7169  1.3  christos       BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
   7170  1.3  christos 		  == htab->glink_eh_frame->size);
   7171  1.3  christos     }
   7172  1.3  christos 
   7173  1.3  christos   return TRUE;
   7174  1.3  christos }
   7175  1.3  christos 
   7176  1.3  christos /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output
   7177  1.3  christos    if it looks like nothing is using them.  */
   7178  1.3  christos 
   7179  1.3  christos static void
   7180  1.3  christos maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect)
   7181  1.3  christos {
   7182  1.3  christos   struct elf_link_hash_entry *sda = lsect->sym;
   7183  1.3  christos 
   7184  1.3  christos   if (sda != NULL && !sda->ref_regular && sda->dynindx == -1)
   7185  1.3  christos     {
   7186  1.3  christos       asection *s;
   7187  1.3  christos 
   7188  1.3  christos       s = bfd_get_section_by_name (output_bfd, lsect->name);
   7189  1.3  christos       if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
   7190  1.3  christos 	{
   7191  1.3  christos 	  s = bfd_get_section_by_name (output_bfd, lsect->bss_name);
   7192  1.3  christos 	  if (s == NULL || bfd_section_removed_from_list (output_bfd, s))
   7193  1.3  christos 	    {
   7194  1.3  christos 	      sda->def_regular = 0;
   7195  1.3  christos 	      /* This is somewhat magic.  See elf_link_output_extsym.  */
   7196  1.3  christos 	      sda->ref_dynamic = 1;
   7197  1.3  christos 	      sda->forced_local = 0;
   7198  1.3  christos 	    }
   7199  1.3  christos 	}
   7200  1.3  christos     }
   7201  1.3  christos }
   7202  1.3  christos 
   7203  1.1  christos void
   7204  1.1  christos ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info)
   7205  1.1  christos {
   7206  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   7207  1.1  christos 
   7208  1.1  christos   if (htab != NULL)
   7209  1.1  christos     {
   7210  1.1  christos       maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]);
   7211  1.1  christos       maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]);
   7212  1.1  christos     }
   7213  1.1  christos }
   7214  1.1  christos 
   7215  1.1  christos 
   7216  1.1  christos /* Return TRUE if symbol should be hashed in the `.gnu.hash' section.  */
   7217  1.1  christos 
   7218  1.1  christos static bfd_boolean
   7219  1.1  christos ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
   7220  1.1  christos {
   7221  1.1  christos   if (h->plt.plist != NULL
   7222  1.1  christos       && !h->def_regular
   7223  1.1  christos       && (!h->pointer_equality_needed
   7224  1.1  christos 	  || !h->ref_regular_nonweak))
   7225  1.1  christos     return FALSE;
   7226  1.1  christos 
   7227  1.3  christos   return _bfd_elf_hash_symbol (h);
   7228  1.1  christos }
   7229  1.1  christos 
   7230  1.1  christos #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
   7232  1.1  christos 
   7233  1.1  christos /* Relaxation trampolines.  r12 is available for clobbering (r11, is
   7234  1.1  christos    used for some functions that are allowed to break the ABI).  */
   7235  1.1  christos static const int shared_stub_entry[] =
   7236  1.1  christos   {
   7237  1.1  christos     0x7c0802a6, /* mflr 0 */
   7238  1.1  christos     0x429f0005, /* bcl 20, 31, .Lxxx */
   7239  1.1  christos     0x7d8802a6, /* mflr 12 */
   7240  1.1  christos     0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
   7241  1.3  christos     0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */
   7242  1.3  christos     0x7c0803a6, /* mtlr 0 */
   7243  1.3  christos     0x7d8903a6, /* mtctr 12 */
   7244  1.3  christos     0x4e800420, /* bctr */
   7245  1.3  christos   };
   7246  1.3  christos 
   7247  1.3  christos static const int stub_entry[] =
   7248  1.3  christos   {
   7249  1.3  christos     0x3d800000, /* lis 12,xxx@ha */
   7250  1.3  christos     0x398c0000, /* addi 12,12,xxx@l */
   7251  1.3  christos     0x7d8903a6, /* mtctr 12 */
   7252  1.1  christos     0x4e800420, /* bctr */
   7253  1.1  christos   };
   7254  1.1  christos 
   7255  1.1  christos struct ppc_elf_relax_info
   7256  1.1  christos {
   7257  1.1  christos   unsigned int workaround_size;
   7258  1.3  christos   unsigned int picfixup_size;
   7259  1.1  christos };
   7260  1.3  christos 
   7261  1.1  christos /* This function implements long branch trampolines, and the ppc476
   7262  1.1  christos    icache bug workaround.  Any section needing trampolines or patch
   7263  1.1  christos    space for the workaround has its size extended so that we can
   7264  1.1  christos    add trampolines at the end of the section.  */
   7265  1.1  christos 
   7266  1.1  christos static bfd_boolean
   7267  1.1  christos ppc_elf_relax_section (bfd *abfd,
   7268  1.1  christos 		       asection *isec,
   7269  1.1  christos 		       struct bfd_link_info *link_info,
   7270  1.1  christos 		       bfd_boolean *again)
   7271  1.1  christos {
   7272  1.3  christos   struct one_branch_fixup
   7273  1.3  christos   {
   7274  1.3  christos     struct one_branch_fixup *next;
   7275  1.1  christos     asection *tsec;
   7276  1.3  christos     /* Final link, can use the symbol offset.  For a
   7277  1.1  christos        relocatable link we use the symbol's index.  */
   7278  1.3  christos     bfd_vma toff;
   7279  1.1  christos     bfd_vma trampoff;
   7280  1.1  christos   };
   7281  1.1  christos 
   7282  1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   7283  1.1  christos   bfd_byte *contents = NULL;
   7284  1.3  christos   Elf_Internal_Sym *isymbuf = NULL;
   7285  1.1  christos   Elf_Internal_Rela *internal_relocs = NULL;
   7286  1.1  christos   Elf_Internal_Rela *irel, *irelend = NULL;
   7287  1.3  christos   struct one_branch_fixup *branch_fixups = NULL;
   7288  1.3  christos   struct ppc_elf_relax_info *relax_info = NULL;
   7289  1.1  christos   unsigned changes = 0;
   7290  1.1  christos   bfd_boolean workaround_change;
   7291  1.1  christos   struct ppc_elf_link_hash_table *htab;
   7292  1.1  christos   bfd_size_type trampbase, trampoff, newsize, picfixup_size;
   7293  1.1  christos   asection *got2;
   7294  1.3  christos   bfd_boolean maybe_pasted;
   7295  1.3  christos 
   7296  1.3  christos   *again = FALSE;
   7297  1.3  christos 
   7298  1.3  christos   /* No need to do anything with non-alloc or non-code sections.  */
   7299  1.3  christos   if ((isec->flags & SEC_ALLOC) == 0
   7300  1.3  christos       || (isec->flags & SEC_CODE) == 0
   7301  1.3  christos       || (isec->flags & SEC_LINKER_CREATED) != 0
   7302  1.3  christos       || isec->size < 4)
   7303  1.3  christos     return TRUE;
   7304  1.3  christos 
   7305  1.3  christos   /* We cannot represent the required PIC relocs in the output, so don't
   7306  1.3  christos      do anything.  The linker doesn't support mixing -shared and -r
   7307  1.3  christos      anyway.  */
   7308  1.3  christos   if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info))
   7309  1.3  christos     return TRUE;
   7310  1.3  christos 
   7311  1.3  christos   htab = ppc_elf_hash_table (link_info);
   7312  1.3  christos   if (htab == NULL)
   7313  1.3  christos     return TRUE;
   7314  1.3  christos 
   7315  1.3  christos   isec->size = (isec->size + 3) & -4;
   7316  1.3  christos   if (isec->rawsize == 0)
   7317  1.3  christos     isec->rawsize = isec->size;
   7318  1.3  christos   trampbase = isec->size;
   7319  1.3  christos 
   7320  1.3  christos   BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE
   7321  1.3  christos 	      || isec->sec_info_type == SEC_INFO_TYPE_TARGET);
   7322  1.3  christos   isec->sec_info_type = SEC_INFO_TYPE_TARGET;
   7323  1.1  christos 
   7324  1.1  christos   if (htab->params->ppc476_workaround
   7325  1.1  christos       || htab->params->pic_fixup > 0)
   7326  1.1  christos     {
   7327  1.3  christos       if (elf_section_data (isec)->sec_info == NULL)
   7328  1.3  christos 	{
   7329  1.1  christos 	  elf_section_data (isec)->sec_info
   7330  1.1  christos 	    = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info));
   7331  1.1  christos 	  if (elf_section_data (isec)->sec_info == NULL)
   7332  1.3  christos 	    return FALSE;
   7333  1.3  christos 	}
   7334  1.3  christos       relax_info = elf_section_data (isec)->sec_info;
   7335  1.3  christos       trampbase -= relax_info->workaround_size;
   7336  1.3  christos     }
   7337  1.3  christos 
   7338  1.3  christos   maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
   7339  1.3  christos 		  || strcmp (isec->output_section->name, ".fini") == 0);
   7340  1.3  christos   /* Space for a branch around any trampolines.  */
   7341  1.3  christos   trampoff = trampbase;
   7342  1.3  christos   if (maybe_pasted && trampbase == isec->rawsize)
   7343  1.3  christos     trampoff += 4;
   7344  1.1  christos 
   7345  1.3  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   7346  1.1  christos   picfixup_size = 0;
   7347  1.3  christos   if (htab->params->branch_trampolines
   7348  1.3  christos       || htab->params->pic_fixup > 0)
   7349  1.1  christos     {
   7350  1.3  christos       /* Get a copy of the native relocations.  */
   7351  1.3  christos       if (isec->reloc_count != 0)
   7352  1.3  christos 	{
   7353  1.3  christos 	  internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
   7354  1.3  christos 						       link_info->keep_memory);
   7355  1.3  christos 	  if (internal_relocs == NULL)
   7356  1.3  christos 	    goto error_return;
   7357  1.3  christos 	}
   7358  1.3  christos 
   7359  1.7  christos       got2 = bfd_get_section_by_name (abfd, ".got2");
   7360  1.3  christos 
   7361  1.3  christos       irelend = internal_relocs + isec->reloc_count;
   7362  1.3  christos       for (irel = internal_relocs; irel < irelend; irel++)
   7363  1.3  christos 	{
   7364  1.3  christos 	  unsigned long r_type = ELF32_R_TYPE (irel->r_info);
   7365  1.3  christos 	  bfd_vma toff, roff;
   7366  1.3  christos 	  asection *tsec;
   7367  1.3  christos 	  struct one_branch_fixup *f;
   7368  1.7  christos 	  size_t insn_offset = 0;
   7369  1.3  christos 	  bfd_vma max_branch_offset = 0, val;
   7370  1.3  christos 	  bfd_byte *hit_addr;
   7371  1.1  christos 	  unsigned long t0;
   7372  1.3  christos 	  struct elf_link_hash_entry *h;
   7373  1.3  christos 	  Elf_Internal_Sym *isym;
   7374  1.3  christos 	  struct plt_entry **plist;
   7375  1.3  christos 	  unsigned char sym_type;
   7376  1.3  christos 
   7377  1.1  christos 	  switch (r_type)
   7378  1.3  christos 	    {
   7379  1.3  christos 	    case R_PPC_REL24:
   7380  1.3  christos 	    case R_PPC_LOCAL24PC:
   7381  1.3  christos 	    case R_PPC_PLTREL24:
   7382  1.1  christos 	    case R_PPC_PLTCALL:
   7383  1.3  christos 	      max_branch_offset = 1 << 25;
   7384  1.3  christos 	      break;
   7385  1.3  christos 
   7386  1.1  christos 	    case R_PPC_REL14:
   7387  1.3  christos 	    case R_PPC_REL14_BRTAKEN:
   7388  1.7  christos 	    case R_PPC_REL14_BRNTAKEN:
   7389  1.7  christos 	      max_branch_offset = 1 << 15;
   7390  1.7  christos 	      break;
   7391  1.7  christos 
   7392  1.7  christos 	    case R_PPC_ADDR16_HA:
   7393  1.1  christos 	      if (htab->params->pic_fixup > 0)
   7394  1.7  christos 		break;
   7395  1.7  christos 	      continue;
   7396  1.7  christos 
   7397  1.3  christos 	    default:
   7398  1.3  christos 	      continue;
   7399  1.3  christos 	    }
   7400  1.3  christos 
   7401  1.3  christos 	  /* Get the value of the symbol referred to by the reloc.  */
   7402  1.3  christos 	  if (!get_sym_h (&h, &isym, &tsec, NULL, &isymbuf,
   7403  1.3  christos 			  ELF32_R_SYM (irel->r_info), abfd))
   7404  1.3  christos 	    goto error_return;
   7405  1.1  christos 
   7406  1.1  christos 	  if (isym != NULL)
   7407  1.3  christos 	    {
   7408  1.7  christos 	      if (tsec != NULL)
   7409  1.7  christos 		;
   7410  1.3  christos 	      else if (isym->st_shndx == SHN_UNDEF)
   7411  1.3  christos 		tsec = bfd_und_section_ptr;
   7412  1.3  christos 	      else if (isym->st_shndx == SHN_ABS)
   7413  1.7  christos 		tsec = bfd_abs_section_ptr;
   7414  1.7  christos 	      else if (isym->st_shndx == SHN_COMMON)
   7415  1.7  christos 		tsec = bfd_com_section_ptr;
   7416  1.3  christos 
   7417  1.3  christos 	      toff = isym->st_value;
   7418  1.3  christos 	      sym_type = ELF_ST_TYPE (isym->st_info);
   7419  1.3  christos 	    }
   7420  1.3  christos 	  else
   7421  1.3  christos 	    {
   7422  1.3  christos 	      if (tsec != NULL)
   7423  1.3  christos 		toff = h->root.u.def.value;
   7424  1.3  christos 	      else if (h->root.type == bfd_link_hash_undefined
   7425  1.3  christos 		       || h->root.type == bfd_link_hash_undefweak)
   7426  1.3  christos 		{
   7427  1.3  christos 		  unsigned long indx;
   7428  1.3  christos 
   7429  1.3  christos 		  indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
   7430  1.3  christos 		  tsec = bfd_und_section_ptr;
   7431  1.3  christos 		  toff = bfd_link_relocatable (link_info) ? indx : 0;
   7432  1.3  christos 		}
   7433  1.3  christos 	      else
   7434  1.3  christos 		continue;
   7435  1.3  christos 
   7436  1.3  christos 	      /* If this branch is to __tls_get_addr then we may later
   7437  1.3  christos 		 optimise away the call.  We won't be needing a long-
   7438  1.3  christos 		 branch stub in that case.  */
   7439  1.3  christos 	      if (bfd_link_executable (link_info)
   7440  1.3  christos 		  && h == htab->tls_get_addr
   7441  1.3  christos 		  && irel != internal_relocs)
   7442  1.3  christos 		{
   7443  1.3  christos 		  unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info);
   7444  1.3  christos 		  unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info);
   7445  1.3  christos 		  unsigned int tls_mask = 0;
   7446  1.3  christos 
   7447  1.3  christos 		  /* The previous reloc should be one of R_PPC_TLSGD or
   7448  1.3  christos 		     R_PPC_TLSLD, or for older object files, a reloc
   7449  1.3  christos 		     on the __tls_get_addr arg setup insn.  Get tls
   7450  1.3  christos 		     mask bits from the symbol on that reloc.  */
   7451  1.3  christos 		  if (t_symndx < symtab_hdr->sh_info)
   7452  1.3  christos 		    {
   7453  1.3  christos 		      bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
   7454  1.3  christos 
   7455  1.3  christos 		      if (local_got_offsets != NULL)
   7456  1.3  christos 			{
   7457  1.3  christos 			  struct plt_entry **local_plt = (struct plt_entry **)
   7458  1.1  christos 			    (local_got_offsets + symtab_hdr->sh_info);
   7459  1.3  christos 			  char *lgot_masks = (char *)
   7460  1.3  christos 			    (local_plt + symtab_hdr->sh_info);
   7461  1.3  christos 			  tls_mask = lgot_masks[t_symndx];
   7462  1.1  christos 			}
   7463  1.3  christos 		    }
   7464  1.3  christos 		  else
   7465  1.3  christos 		    {
   7466  1.3  christos 		      struct elf_link_hash_entry *th
   7467  1.3  christos 			= elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info];
   7468  1.3  christos 
   7469  1.3  christos 		      while (th->root.type == bfd_link_hash_indirect
   7470  1.3  christos 			     || th->root.type == bfd_link_hash_warning)
   7471  1.3  christos 			th = (struct elf_link_hash_entry *) th->root.u.i.link;
   7472  1.3  christos 
   7473  1.3  christos 		      tls_mask
   7474  1.3  christos 			= ((struct ppc_elf_link_hash_entry *) th)->tls_mask;
   7475  1.3  christos 		    }
   7476  1.1  christos 
   7477  1.3  christos 		  /* The mask bits tell us if the call will be
   7478  1.3  christos 		     optimised away.  */
   7479  1.1  christos 		  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
   7480  1.3  christos 		      && (t_rtype == R_PPC_TLSGD
   7481  1.1  christos 			  || t_rtype == R_PPC_GOT_TLSGD16
   7482  1.3  christos 			  || t_rtype == R_PPC_GOT_TLSGD16_LO))
   7483  1.3  christos 		    continue;
   7484  1.3  christos 		  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
   7485  1.3  christos 		      && (t_rtype == R_PPC_TLSLD
   7486  1.3  christos 			  || t_rtype == R_PPC_GOT_TLSLD16
   7487  1.3  christos 			  || t_rtype == R_PPC_GOT_TLSLD16_LO))
   7488  1.3  christos 		    continue;
   7489  1.1  christos 		}
   7490  1.3  christos 
   7491  1.3  christos 	      sym_type = h->type;
   7492  1.3  christos 	    }
   7493  1.3  christos 
   7494  1.3  christos 	  if (r_type == R_PPC_ADDR16_HA)
   7495  1.3  christos 	    {
   7496  1.3  christos 	      if (h != NULL
   7497  1.1  christos 		  && !h->def_regular
   7498  1.3  christos 		  && h->protected_def
   7499  1.3  christos 		  && ppc_elf_hash_entry (h)->has_addr16_ha
   7500  1.3  christos 		  && ppc_elf_hash_entry (h)->has_addr16_lo)
   7501  1.3  christos 		picfixup_size += 12;
   7502  1.3  christos 	      continue;
   7503  1.3  christos 	    }
   7504  1.3  christos 
   7505  1.3  christos 	  /* The condition here under which we call find_plt_ent must
   7506  1.3  christos 	     match that in relocate_section.  If we call find_plt_ent here
   7507  1.3  christos 	     but not in relocate_section, or vice versa, then the branch
   7508  1.3  christos 	     destination used here may be incorrect.  */
   7509  1.3  christos 	  plist = NULL;
   7510  1.1  christos 	  if (h != NULL)
   7511  1.3  christos 	    {
   7512  1.3  christos 	      /* We know is_branch_reloc (r_type) is true.  */
   7513  1.3  christos 	      if (h->type == STT_GNU_IFUNC
   7514  1.3  christos 		  || r_type == R_PPC_PLTREL24)
   7515  1.1  christos 		plist = &h->plt.plist;
   7516  1.3  christos 	    }
   7517  1.3  christos 	  else if (sym_type == STT_GNU_IFUNC
   7518  1.3  christos 		   && elf_local_got_offsets (abfd) != NULL)
   7519  1.3  christos 	    {
   7520  1.1  christos 	      bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
   7521  1.3  christos 	      struct plt_entry **local_plt = (struct plt_entry **)
   7522  1.3  christos 		(local_got_offsets + symtab_hdr->sh_info);
   7523  1.3  christos 	      plist = local_plt + ELF32_R_SYM (irel->r_info);
   7524  1.3  christos 	    }
   7525  1.3  christos 	  if (plist != NULL)
   7526  1.3  christos 	    {
   7527  1.3  christos 	      bfd_vma addend = 0;
   7528  1.3  christos 	      struct plt_entry *ent;
   7529  1.3  christos 
   7530  1.3  christos 	      if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info))
   7531  1.7  christos 		addend = irel->r_addend;
   7532  1.3  christos 	      ent = find_plt_ent (plist, got2, addend);
   7533  1.3  christos 	      if (ent != NULL)
   7534  1.1  christos 		{
   7535  1.1  christos 		  if (htab->plt_type == PLT_NEW
   7536  1.1  christos 		      || h == NULL
   7537  1.3  christos 		      || !htab->elf.dynamic_sections_created
   7538  1.3  christos 		      || h->dynindx == -1)
   7539  1.3  christos 		    {
   7540  1.3  christos 		      tsec = htab->glink;
   7541  1.3  christos 		      toff = ent->glink_offset;
   7542  1.3  christos 		    }
   7543  1.3  christos 		  else
   7544  1.3  christos 		    {
   7545  1.3  christos 		      tsec = htab->elf.splt;
   7546  1.3  christos 		      toff = ent->plt.offset;
   7547  1.3  christos 		    }
   7548  1.3  christos 		}
   7549  1.3  christos 	    }
   7550  1.3  christos 
   7551  1.3  christos 	  /* If the branch and target are in the same section, you have
   7552  1.3  christos 	     no hope of adding stubs.  We'll error out later should the
   7553  1.3  christos 	     branch overflow.  */
   7554  1.3  christos 	  if (tsec == isec)
   7555  1.3  christos 	    continue;
   7556  1.3  christos 
   7557  1.3  christos 	  /* There probably isn't any reason to handle symbols in
   7558  1.3  christos 	     SEC_MERGE sections;  SEC_MERGE doesn't seem a likely
   7559  1.3  christos 	     attribute for a code section, and we are only looking at
   7560  1.3  christos 	     branches.  However, implement it correctly here as a
   7561  1.3  christos 	     reference for other target relax_section functions.  */
   7562  1.3  christos 	  if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
   7563  1.3  christos 	    {
   7564  1.3  christos 	      /* At this stage in linking, no SEC_MERGE symbol has been
   7565  1.3  christos 		 adjusted, so all references to such symbols need to be
   7566  1.3  christos 		 passed through _bfd_merged_section_offset.  (Later, in
   7567  1.3  christos 		 relocate_section, all SEC_MERGE symbols *except* for
   7568  1.3  christos 		 section symbols have been adjusted.)
   7569  1.3  christos 
   7570  1.3  christos 		 gas may reduce relocations against symbols in SEC_MERGE
   7571  1.3  christos 		 sections to a relocation against the section symbol when
   7572  1.3  christos 		 the original addend was zero.  When the reloc is against
   7573  1.1  christos 		 a section symbol we should include the addend in the
   7574  1.3  christos 		 offset passed to _bfd_merged_section_offset, since the
   7575  1.3  christos 		 location of interest is the original symbol.  On the
   7576  1.3  christos 		 other hand, an access to "sym+addend" where "sym" is not
   7577  1.3  christos 		 a section symbol should not include the addend;  Such an
   7578  1.3  christos 		 access is presumed to be an offset from "sym";  The
   7579  1.1  christos 		 location of interest is just "sym".  */
   7580  1.1  christos 	      if (sym_type == STT_SECTION)
   7581  1.3  christos 		toff += irel->r_addend;
   7582  1.3  christos 
   7583  1.3  christos 	      toff
   7584  1.3  christos 		= _bfd_merged_section_offset (abfd, &tsec,
   7585  1.3  christos 					      elf_section_data (tsec)->sec_info,
   7586  1.3  christos 					      toff);
   7587  1.3  christos 
   7588  1.1  christos 	      if (sym_type != STT_SECTION)
   7589  1.3  christos 		toff += irel->r_addend;
   7590  1.1  christos 	    }
   7591  1.3  christos 	  /* PLTREL24 addends are special.  */
   7592  1.3  christos 	  else if (r_type != R_PPC_PLTREL24)
   7593  1.3  christos 	    toff += irel->r_addend;
   7594  1.3  christos 
   7595  1.3  christos 	  /* Attempted -shared link of non-pic code loses.  */
   7596  1.3  christos 	  if ((!bfd_link_relocatable (link_info)
   7597  1.3  christos 	       && tsec == bfd_und_section_ptr)
   7598  1.3  christos 	      || tsec->output_section == NULL
   7599  1.3  christos 	      || (tsec->owner != NULL
   7600  1.3  christos 		  && (tsec->owner->flags & BFD_PLUGIN) != 0))
   7601  1.3  christos 	    continue;
   7602  1.3  christos 
   7603  1.3  christos 	  roff = irel->r_offset;
   7604  1.3  christos 
   7605  1.3  christos 	  /* If the branch is in range, no need to do anything.  */
   7606  1.1  christos 	  if (tsec != bfd_und_section_ptr
   7607  1.3  christos 	      && (!bfd_link_relocatable (link_info)
   7608  1.3  christos 		  /* A relocatable link may have sections moved during
   7609  1.3  christos 		     final link, so do not presume they remain in range.  */
   7610  1.3  christos 		  || tsec->output_section == isec->output_section))
   7611  1.1  christos 	    {
   7612  1.3  christos 	      bfd_vma symaddr, reladdr;
   7613  1.3  christos 
   7614  1.3  christos 	      symaddr = tsec->output_section->vma + tsec->output_offset + toff;
   7615  1.3  christos 	      reladdr = isec->output_section->vma + isec->output_offset + roff;
   7616  1.1  christos 	      if (symaddr - reladdr + max_branch_offset
   7617  1.3  christos 		  < 2 * max_branch_offset)
   7618  1.3  christos 		continue;
   7619  1.3  christos 	    }
   7620  1.3  christos 
   7621  1.3  christos 	  /* Look for an existing fixup to this address.  */
   7622  1.1  christos 	  for (f = branch_fixups; f ; f = f->next)
   7623  1.3  christos 	    if (f->tsec == tsec && f->toff == toff)
   7624  1.3  christos 	      break;
   7625  1.3  christos 
   7626  1.3  christos 	  if (f == NULL)
   7627  1.3  christos 	    {
   7628  1.3  christos 	      size_t size;
   7629  1.3  christos 	      unsigned long stub_rtype;
   7630  1.3  christos 
   7631  1.3  christos 	      val = trampoff - roff;
   7632  1.3  christos 	      if (val >= max_branch_offset)
   7633  1.3  christos 		/* Oh dear, we can't reach a trampoline.  Don't try to add
   7634  1.7  christos 		   one.  We'll report an error later.  */
   7635  1.3  christos 		continue;
   7636  1.3  christos 
   7637  1.3  christos 	      if (bfd_link_pic (link_info))
   7638  1.3  christos 		{
   7639  1.3  christos 		  size = 4 * ARRAY_SIZE (shared_stub_entry);
   7640  1.3  christos 		  insn_offset = 12;
   7641  1.1  christos 		}
   7642  1.3  christos 	      else
   7643  1.3  christos 		{
   7644  1.3  christos 		  size = 4 * ARRAY_SIZE (stub_entry);
   7645  1.3  christos 		  insn_offset = 0;
   7646  1.3  christos 		}
   7647  1.3  christos 	      stub_rtype = R_PPC_RELAX;
   7648  1.3  christos 	      if (tsec == htab->elf.splt
   7649  1.3  christos 		  || tsec == htab->glink)
   7650  1.3  christos 		{
   7651  1.3  christos 		  stub_rtype = R_PPC_RELAX_PLT;
   7652  1.3  christos 		  if (r_type == R_PPC_PLTREL24)
   7653  1.3  christos 		    stub_rtype = R_PPC_RELAX_PLTREL24;
   7654  1.3  christos 		}
   7655  1.3  christos 
   7656  1.3  christos 	      /* Hijack the old relocation.  Since we need two
   7657  1.3  christos 		 relocations for this use a "composite" reloc.  */
   7658  1.1  christos 	      irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
   7659  1.3  christos 					   stub_rtype);
   7660  1.3  christos 	      irel->r_offset = trampoff + insn_offset;
   7661  1.1  christos 	      if (r_type == R_PPC_PLTREL24
   7662  1.1  christos 		  && stub_rtype != R_PPC_RELAX_PLTREL24)
   7663  1.1  christos 		irel->r_addend = 0;
   7664  1.3  christos 
   7665  1.3  christos 	      /* Record the fixup so we don't do it again this section.  */
   7666  1.3  christos 	      f = bfd_malloc (sizeof (*f));
   7667  1.3  christos 	      f->next = branch_fixups;
   7668  1.3  christos 	      f->tsec = tsec;
   7669  1.3  christos 	      f->toff = toff;
   7670  1.1  christos 	      f->trampoff = trampoff;
   7671  1.1  christos 	      branch_fixups = f;
   7672  1.3  christos 
   7673  1.3  christos 	      trampoff += size;
   7674  1.1  christos 	      changes++;
   7675  1.3  christos 	    }
   7676  1.3  christos 	  else
   7677  1.3  christos 	    {
   7678  1.1  christos 	      val = f->trampoff - roff;
   7679  1.3  christos 	      if (val >= max_branch_offset)
   7680  1.1  christos 		continue;
   7681  1.1  christos 
   7682  1.1  christos 	      /* Nop out the reloc, since we're finalizing things here.  */
   7683  1.3  christos 	      irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   7684  1.3  christos 	    }
   7685  1.3  christos 
   7686  1.3  christos 	  /* Get the section contents.  */
   7687  1.3  christos 	  if (contents == NULL)
   7688  1.3  christos 	    {
   7689  1.3  christos 	      /* Get cached copy if it exists.  */
   7690  1.3  christos 	      if (elf_section_data (isec)->this_hdr.contents != NULL)
   7691  1.3  christos 		contents = elf_section_data (isec)->this_hdr.contents;
   7692  1.3  christos 	      /* Go get them off disk.  */
   7693  1.3  christos 	      else if (!bfd_malloc_and_get_section (abfd, isec, &contents))
   7694  1.3  christos 		goto error_return;
   7695  1.1  christos 	    }
   7696  1.3  christos 
   7697  1.3  christos 	  /* Fix up the existing branch to hit the trampoline.  */
   7698  1.3  christos 	  hit_addr = contents + roff;
   7699  1.3  christos 	  switch (r_type)
   7700  1.3  christos 	    {
   7701  1.3  christos 	    case R_PPC_REL24:
   7702  1.3  christos 	    case R_PPC_LOCAL24PC:
   7703  1.3  christos 	    case R_PPC_PLTREL24:
   7704  1.3  christos 	      t0 = bfd_get_32 (abfd, hit_addr);
   7705  1.1  christos 	      t0 &= ~0x3fffffc;
   7706  1.1  christos 	      t0 |= val & 0x3fffffc;
   7707  1.3  christos 	      bfd_put_32 (abfd, t0, hit_addr);
   7708  1.1  christos 	      break;
   7709  1.3  christos 
   7710  1.3  christos 	    case R_PPC_REL14:
   7711  1.1  christos 	    case R_PPC_REL14_BRTAKEN:
   7712  1.1  christos 	    case R_PPC_REL14_BRNTAKEN:
   7713  1.3  christos 	      t0 = bfd_get_32 (abfd, hit_addr);
   7714  1.1  christos 	      t0 &= ~0xfffc;
   7715  1.3  christos 	      t0 |= val & 0xfffc;
   7716  1.3  christos 	      bfd_put_32 (abfd, t0, hit_addr);
   7717  1.3  christos 	      break;
   7718  1.3  christos 	    }
   7719  1.3  christos 	}
   7720  1.3  christos 
   7721  1.3  christos       while (branch_fixups != NULL)
   7722  1.3  christos 	{
   7723  1.3  christos 	  struct one_branch_fixup *f = branch_fixups;
   7724  1.1  christos 	  branch_fixups = branch_fixups->next;
   7725  1.3  christos 	  free (f);
   7726  1.3  christos 	}
   7727  1.3  christos     }
   7728  1.3  christos 
   7729  1.3  christos   workaround_change = FALSE;
   7730  1.1  christos   newsize = trampoff;
   7731  1.3  christos   if (htab->params->ppc476_workaround
   7732  1.3  christos       && (!bfd_link_relocatable (link_info)
   7733  1.3  christos 	  || isec->output_section->alignment_power >= htab->params->pagesize_p2))
   7734  1.3  christos     {
   7735  1.3  christos       bfd_vma addr, end_addr;
   7736  1.3  christos       unsigned int crossings;
   7737  1.3  christos       bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   7738  1.3  christos 
   7739  1.3  christos       addr = isec->output_section->vma + isec->output_offset;
   7740  1.3  christos       end_addr = addr + trampoff;
   7741  1.3  christos       addr &= -pagesize;
   7742  1.3  christos       crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2;
   7743  1.1  christos       if (crossings != 0)
   7744  1.3  christos 	{
   7745  1.3  christos 	  /* Keep space aligned, to ensure the patch code itself does
   7746  1.1  christos 	     not cross a page.  Don't decrease size calculated on a
   7747  1.3  christos 	     previous pass as otherwise we might never settle on a layout.  */
   7748  1.3  christos 	  newsize = 15 - ((end_addr - 1) & 15);
   7749  1.3  christos 	  newsize += crossings * 16;
   7750  1.3  christos 	  if (relax_info->workaround_size < newsize)
   7751  1.3  christos 	    {
   7752  1.3  christos 	      relax_info->workaround_size = newsize;
   7753  1.3  christos 	      workaround_change = TRUE;
   7754  1.1  christos 	    }
   7755  1.3  christos 	  /* Ensure relocate_section is called.  */
   7756  1.3  christos 	  isec->flags |= SEC_RELOC;
   7757  1.1  christos 	}
   7758  1.1  christos       newsize = trampoff + relax_info->workaround_size;
   7759  1.1  christos     }
   7760  1.1  christos 
   7761  1.1  christos   if (htab->params->pic_fixup > 0)
   7762  1.1  christos     {
   7763  1.1  christos       picfixup_size -= relax_info->picfixup_size;
   7764  1.1  christos       if (picfixup_size != 0)
   7765  1.1  christos 	relax_info->picfixup_size += picfixup_size;
   7766  1.1  christos       newsize += relax_info->picfixup_size;
   7767  1.1  christos     }
   7768  1.1  christos 
   7769  1.1  christos   if (changes != 0 || picfixup_size != 0 || workaround_change)
   7770  1.1  christos     isec->size = newsize;
   7771  1.1  christos 
   7772  1.1  christos   if (isymbuf != NULL
   7773  1.1  christos       && symtab_hdr->contents != (unsigned char *) isymbuf)
   7774  1.1  christos     {
   7775  1.1  christos       if (! link_info->keep_memory)
   7776  1.1  christos 	free (isymbuf);
   7777  1.1  christos       else
   7778  1.1  christos 	{
   7779  1.1  christos 	  /* Cache the symbols for elf_link_input_bfd.  */
   7780  1.1  christos 	  symtab_hdr->contents = (unsigned char *) isymbuf;
   7781  1.1  christos 	}
   7782  1.3  christos     }
   7783  1.1  christos 
   7784  1.1  christos   if (contents != NULL
   7785  1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7786  1.1  christos     {
   7787  1.1  christos       if (!changes && !link_info->keep_memory)
   7788  1.1  christos 	free (contents);
   7789  1.1  christos       else
   7790  1.1  christos 	{
   7791  1.1  christos 	  /* Cache the section contents for elf_link_input_bfd.  */
   7792  1.1  christos 	  elf_section_data (isec)->this_hdr.contents = contents;
   7793  1.1  christos 	}
   7794  1.1  christos     }
   7795  1.1  christos 
   7796  1.1  christos   changes += picfixup_size;
   7797  1.1  christos   if (changes != 0)
   7798  1.1  christos     {
   7799  1.1  christos       /* Append sufficient NOP relocs so we can write out relocation
   7800  1.1  christos 	 information for the trampolines.  */
   7801  1.1  christos       Elf_Internal_Shdr *rel_hdr;
   7802  1.1  christos       Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
   7803  1.1  christos 						  * sizeof (*new_relocs));
   7804  1.1  christos       unsigned ix;
   7805  1.1  christos 
   7806  1.1  christos       if (!new_relocs)
   7807  1.1  christos 	goto error_return;
   7808  1.1  christos       memcpy (new_relocs, internal_relocs,
   7809  1.3  christos 	      isec->reloc_count * sizeof (*new_relocs));
   7810  1.3  christos       for (ix = changes; ix--;)
   7811  1.1  christos 	{
   7812  1.1  christos 	  irel = new_relocs + ix + isec->reloc_count;
   7813  1.3  christos 
   7814  1.1  christos 	  irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   7815  1.1  christos 	}
   7816  1.1  christos       if (internal_relocs != elf_section_data (isec)->relocs)
   7817  1.3  christos 	free (internal_relocs);
   7818  1.3  christos       elf_section_data (isec)->relocs = new_relocs;
   7819  1.3  christos       isec->reloc_count += changes;
   7820  1.3  christos       rel_hdr = _bfd_elf_single_rel_hdr (isec);
   7821  1.3  christos       rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
   7822  1.3  christos     }
   7823  1.1  christos   else if (internal_relocs != NULL
   7824  1.1  christos 	   && elf_section_data (isec)->relocs != internal_relocs)
   7825  1.1  christos     free (internal_relocs);
   7826  1.1  christos 
   7827  1.1  christos   *again = changes != 0 || workaround_change;
   7828  1.1  christos   return TRUE;
   7829  1.1  christos 
   7830  1.1  christos  error_return:
   7831  1.1  christos   while (branch_fixups != NULL)
   7832  1.1  christos     {
   7833  1.1  christos       struct one_branch_fixup *f = branch_fixups;
   7834  1.1  christos       branch_fixups = branch_fixups->next;
   7835  1.1  christos       free (f);
   7836  1.1  christos     }
   7837  1.1  christos   if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
   7838  1.1  christos     free (isymbuf);
   7839  1.1  christos   if (contents != NULL
   7840  1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7841  1.1  christos     free (contents);
   7842  1.1  christos   if (internal_relocs != NULL
   7843  1.1  christos       && elf_section_data (isec)->relocs != internal_relocs)
   7844  1.1  christos     free (internal_relocs);
   7845  1.1  christos   return FALSE;
   7846  1.1  christos }
   7847  1.1  christos 
   7848  1.1  christos /* What to do when ld finds relocations against symbols defined in
   7850  1.1  christos    discarded sections.  */
   7851  1.1  christos 
   7852  1.1  christos static unsigned int
   7853  1.1  christos ppc_elf_action_discarded (asection *sec)
   7854  1.1  christos {
   7855  1.1  christos   if (strcmp (".fixup", sec->name) == 0)
   7856  1.1  christos     return 0;
   7857  1.1  christos 
   7858  1.1  christos   if (strcmp (".got2", sec->name) == 0)
   7859  1.1  christos     return 0;
   7860  1.1  christos 
   7861  1.1  christos   return _bfd_elf_default_action_discarded (sec);
   7862  1.1  christos }
   7863  1.1  christos 
   7864  1.1  christos /* Fill in the address for a pointer generated in a linker section.  */
   7866  1.1  christos 
   7867  1.1  christos static bfd_vma
   7868  1.1  christos elf_finish_pointer_linker_section (bfd *input_bfd,
   7869  1.1  christos 				   elf_linker_section_t *lsect,
   7870  1.1  christos 				   struct elf_link_hash_entry *h,
   7871  1.1  christos 				   bfd_vma relocation,
   7872  1.1  christos 				   const Elf_Internal_Rela *rel)
   7873  1.1  christos {
   7874  1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   7875  1.1  christos 
   7876  1.1  christos   BFD_ASSERT (lsect != NULL);
   7877  1.1  christos 
   7878  1.1  christos   if (h != NULL)
   7879  1.1  christos     {
   7880  1.1  christos       /* Handle global symbol.  */
   7881  1.1  christos       struct ppc_elf_link_hash_entry *eh;
   7882  1.1  christos 
   7883  1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   7884  1.1  christos       BFD_ASSERT (eh->elf.def_regular);
   7885  1.1  christos       linker_section_ptr = eh->linker_section_pointer;
   7886  1.1  christos     }
   7887  1.1  christos   else
   7888  1.1  christos     {
   7889  1.1  christos       /* Handle local symbol.  */
   7890  1.1  christos       unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   7891  1.1  christos 
   7892  1.1  christos       BFD_ASSERT (is_ppc_elf (input_bfd));
   7893  1.1  christos       BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
   7894  1.1  christos       linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
   7895  1.1  christos     }
   7896  1.1  christos 
   7897  1.1  christos   linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
   7898  1.1  christos 							rel->r_addend,
   7899  1.1  christos 							lsect);
   7900  1.1  christos   BFD_ASSERT (linker_section_ptr != NULL);
   7901  1.1  christos 
   7902  1.1  christos   /* Offset will always be a multiple of four, so use the bottom bit
   7903  1.1  christos      as a "written" flag.  */
   7904  1.1  christos   if ((linker_section_ptr->offset & 1) == 0)
   7905  1.1  christos     {
   7906  1.1  christos       bfd_put_32 (lsect->section->owner,
   7907  1.1  christos 		  relocation + linker_section_ptr->addend,
   7908  1.1  christos 		  lsect->section->contents + linker_section_ptr->offset);
   7909  1.1  christos       linker_section_ptr->offset += 1;
   7910  1.1  christos     }
   7911  1.1  christos 
   7912  1.1  christos   relocation = (lsect->section->output_section->vma
   7913  1.1  christos 		+ lsect->section->output_offset
   7914  1.1  christos 		+ linker_section_ptr->offset - 1
   7915  1.7  christos 		- SYM_VAL (lsect->sym));
   7916  1.7  christos 
   7917  1.1  christos #ifdef DEBUG
   7918  1.1  christos   fprintf (stderr,
   7919  1.1  christos 	   "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
   7920  1.1  christos 	   lsect->name, (long) relocation, (long) relocation);
   7921  1.1  christos #endif
   7922  1.7  christos 
   7923  1.7  christos   return relocation;
   7924  1.7  christos }
   7925  1.7  christos 
   7926  1.7  christos #define PPC_LO(v) ((v) & 0xffff)
   7927  1.7  christos #define PPC_HI(v) (((v) >> 16) & 0xffff)
   7928  1.7  christos #define PPC_HA(v) PPC_HI ((v) + 0x8000)
   7929  1.7  christos 
   7930  1.7  christos static void
   7931  1.7  christos write_glink_stub (struct elf_link_hash_entry *h, struct plt_entry *ent,
   7932  1.7  christos 		  asection *plt_sec, unsigned char *p,
   7933  1.7  christos 		  struct bfd_link_info *info)
   7934  1.7  christos {
   7935  1.7  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   7936  1.7  christos   bfd *output_bfd = info->output_bfd;
   7937  1.7  christos   bfd_vma plt;
   7938  1.7  christos   unsigned char *end = p + GLINK_ENTRY_SIZE (htab, h);
   7939  1.7  christos 
   7940  1.7  christos   if (h != NULL
   7941  1.7  christos       && h == htab->tls_get_addr
   7942  1.7  christos       && !htab->params->no_tls_get_addr_opt)
   7943  1.7  christos     {
   7944  1.7  christos       bfd_put_32 (output_bfd, LWZ_11_3, p);
   7945  1.1  christos       p += 4;
   7946  1.1  christos       bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
   7947  1.1  christos       p += 4;
   7948  1.1  christos       bfd_put_32 (output_bfd, MR_0_3, p);
   7949  1.1  christos       p += 4;
   7950  1.3  christos       bfd_put_32 (output_bfd, CMPWI_11_0, p);
   7951  1.1  christos       p += 4;
   7952  1.1  christos       bfd_put_32 (output_bfd, ADD_3_12_2, p);
   7953  1.1  christos       p += 4;
   7954  1.1  christos       bfd_put_32 (output_bfd, BEQLR, p);
   7955  1.1  christos       p += 4;
   7956  1.1  christos       bfd_put_32 (output_bfd, MR_3_0, p);
   7957  1.1  christos       p += 4;
   7958  1.1  christos       bfd_put_32 (output_bfd, NOP, p);
   7959  1.1  christos       p += 4;
   7960  1.1  christos     }
   7961  1.1  christos 
   7962  1.1  christos   plt = ((ent->plt.offset & ~1)
   7963  1.1  christos 	 + plt_sec->output_section->vma
   7964  1.7  christos 	 + plt_sec->output_offset);
   7965  1.1  christos 
   7966  1.1  christos   if (bfd_link_pic (info))
   7967  1.1  christos     {
   7968  1.1  christos       bfd_vma got = 0;
   7969  1.1  christos 
   7970  1.1  christos       if (ent->addend >= 32768)
   7971  1.1  christos 	got = (ent->addend
   7972  1.1  christos 	       + ent->sec->output_section->vma
   7973  1.1  christos 	       + ent->sec->output_offset);
   7974  1.1  christos       else if (htab->elf.hgot != NULL)
   7975  1.1  christos 	got = SYM_VAL (htab->elf.hgot);
   7976  1.1  christos 
   7977  1.7  christos       plt -= got;
   7978  1.7  christos 
   7979  1.7  christos       if (plt + 0x8000 < 0x10000)
   7980  1.7  christos 	bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
   7981  1.7  christos       else
   7982  1.7  christos 	{
   7983  1.7  christos 	  bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
   7984  1.7  christos 	  p += 4;
   7985  1.7  christos 	  bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7986  1.1  christos 	}
   7987  1.1  christos     }
   7988  1.1  christos   else
   7989  1.1  christos     {
   7990  1.1  christos       bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
   7991  1.1  christos       p += 4;
   7992  1.1  christos       bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7993  1.1  christos     }
   7994  1.1  christos   p += 4;
   7995  1.1  christos   bfd_put_32 (output_bfd, MTCTR_11, p);
   7996  1.1  christos   p += 4;
   7997  1.1  christos   bfd_put_32 (output_bfd, BCTR, p);
   7998  1.1  christos   p += 4;
   7999  1.1  christos   while (p < end)
   8000  1.1  christos     {
   8001  1.1  christos       bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p);
   8002  1.1  christos       p += 4;
   8003  1.1  christos     }
   8004  1.1  christos }
   8005  1.1  christos 
   8006  1.1  christos /* Return true if symbol is defined statically.  */
   8007  1.1  christos 
   8008  1.1  christos static bfd_boolean
   8009  1.1  christos is_static_defined (struct elf_link_hash_entry *h)
   8010  1.1  christos {
   8011  1.1  christos   return ((h->root.type == bfd_link_hash_defined
   8012  1.1  christos 	   || h->root.type == bfd_link_hash_defweak)
   8013  1.1  christos 	  && h->root.u.def.section != NULL
   8014  1.1  christos 	  && h->root.u.def.section->output_section != NULL);
   8015  1.1  christos }
   8016  1.1  christos 
   8017  1.1  christos /* If INSN is an opcode that may be used with an @tls operand, return
   8018  1.1  christos    the transformed insn for TLS optimisation, otherwise return 0.  If
   8019  1.1  christos    REG is non-zero only match an insn with RB or RA equal to REG.  */
   8020  1.1  christos 
   8021  1.1  christos unsigned int
   8022  1.1  christos _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
   8023  1.1  christos {
   8024  1.1  christos   unsigned int rtra;
   8025  1.1  christos 
   8026  1.1  christos   if ((insn & (0x3f << 26)) != 31 << 26)
   8027  1.1  christos     return 0;
   8028  1.1  christos 
   8029  1.1  christos   if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
   8030  1.1  christos     rtra = insn & ((1 << 26) - (1 << 16));
   8031  1.1  christos   else if (((insn >> 16) & 0x1f) == reg)
   8032  1.1  christos     rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
   8033  1.1  christos   else
   8034  1.1  christos     return 0;
   8035  1.1  christos 
   8036  1.1  christos   if ((insn & (0x3ff << 1)) == 266 << 1)
   8037  1.1  christos     /* add -> addi.  */
   8038  1.1  christos     insn = 14 << 26;
   8039  1.1  christos   else if ((insn & (0x1f << 1)) == 23 << 1
   8040  1.1  christos 	   && ((insn & (0x1f << 6)) < 14 << 6
   8041  1.1  christos 	       || ((insn & (0x1f << 6)) >= 16 << 6
   8042  1.1  christos 		   && (insn & (0x1f << 6)) < 24 << 6)))
   8043  1.1  christos     /* load and store indexed -> dform.  */
   8044  1.1  christos     insn = (32 | ((insn >> 6) & 0x1f)) << 26;
   8045  1.1  christos   else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
   8046  1.1  christos     /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu.  */
   8047  1.1  christos     insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
   8048  1.1  christos   else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
   8049  1.1  christos     /* lwax -> lwa.  */
   8050  1.1  christos     insn = (58 << 26) | 2;
   8051  1.1  christos   else
   8052  1.1  christos     return 0;
   8053  1.1  christos   insn |= rtra;
   8054  1.1  christos   return insn;
   8055  1.1  christos }
   8056  1.1  christos 
   8057  1.1  christos /* If INSN is an opcode that may be used with an @tprel operand, return
   8058  1.1  christos    the transformed insn for an undefined weak symbol, ie. with the
   8059  1.1  christos    thread pointer REG operand removed.  Otherwise return 0.  */
   8060  1.1  christos 
   8061  1.1  christos unsigned int
   8062  1.1  christos _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
   8063  1.1  christos {
   8064  1.1  christos   if ((insn & (0x1f << 16)) == reg << 16
   8065  1.1  christos       && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
   8066  1.1  christos 	  || (insn & (0x3f << 26)) == 15u << 26 /* addis */
   8067  1.1  christos 	  || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
   8068  1.1  christos 	  || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
   8069  1.1  christos 	  || (insn & (0x3f << 26)) == 36u << 26 /* stw */
   8070  1.1  christos 	  || (insn & (0x3f << 26)) == 38u << 26 /* stb */
   8071  1.1  christos 	  || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
   8072  1.1  christos 	  || (insn & (0x3f << 26)) == 42u << 26 /* lha */
   8073  1.1  christos 	  || (insn & (0x3f << 26)) == 44u << 26 /* sth */
   8074  1.1  christos 	  || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
   8075  1.1  christos 	  || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
   8076  1.1  christos 	  || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
   8077  1.1  christos 	  || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
   8078  1.1  christos 	  || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
   8079  1.1  christos 	  || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
   8080  1.1  christos 	  || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
   8081  1.1  christos 	      && (insn & 3) != 1)
   8082  1.1  christos 	  || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
   8083  1.1  christos 	      && ((insn & 3) == 0 || (insn & 3) == 3))))
   8084  1.1  christos     {
   8085  1.1  christos       insn &= ~(0x1f << 16);
   8086  1.1  christos     }
   8087  1.1  christos   else if ((insn & (0x1f << 21)) == reg << 21
   8088  1.1  christos 	   && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
   8089  1.1  christos 	       || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
   8090  1.1  christos 	       || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
   8091  1.1  christos     {
   8092  1.1  christos       insn &= ~(0x1f << 21);
   8093  1.1  christos       insn |= (insn & (0x1f << 16)) << 5;
   8094  1.1  christos       if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
   8095  1.1  christos 	insn -= 2 >> 26;  /* convert to ori,oris */
   8096  1.1  christos     }
   8097  1.1  christos   else
   8098  1.3  christos     insn = 0;
   8099  1.3  christos   return insn;
   8100  1.3  christos }
   8101  1.1  christos 
   8102  1.1  christos static bfd_boolean
   8103  1.1  christos is_insn_ds_form (unsigned int insn)
   8104  1.1  christos {
   8105  1.1  christos   return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
   8106  1.1  christos 	  || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
   8107  1.1  christos 	  || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
   8108  1.1  christos 	  || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
   8109  1.1  christos }
   8110  1.1  christos 
   8111  1.1  christos static bfd_boolean
   8112  1.1  christos is_insn_dq_form (unsigned int insn)
   8113  1.1  christos {
   8114  1.1  christos   return ((insn & (0x3f << 26)) == 56u << 26 /* lq */
   8115  1.1  christos 	  || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
   8116  1.1  christos 	      && (insn & 3) == 1));
   8117  1.1  christos }
   8118  1.1  christos 
   8119  1.1  christos /* The RELOCATE_SECTION function is called by the ELF backend linker
   8120  1.1  christos    to handle the relocations for a section.
   8121  1.1  christos 
   8122  1.1  christos    The relocs are always passed as Rela structures; if the section
   8123  1.1  christos    actually uses Rel structures, the r_addend field will always be
   8124  1.1  christos    zero.
   8125  1.1  christos 
   8126  1.1  christos    This function is responsible for adjust the section contents as
   8127  1.1  christos    necessary, and (if using Rela relocs and generating a
   8128  1.1  christos    relocatable output file) adjusting the reloc addend as
   8129  1.1  christos    necessary.
   8130  1.1  christos 
   8131  1.1  christos    This function does not have to worry about setting the reloc
   8132  1.1  christos    address or the reloc symbol index.
   8133  1.1  christos 
   8134  1.1  christos    LOCAL_SYMS is a pointer to the swapped in local symbols.
   8135  1.1  christos 
   8136  1.1  christos    LOCAL_SECTIONS is an array giving the section in the input file
   8137  1.1  christos    corresponding to the st_shndx field of each local symbol.
   8138  1.1  christos 
   8139  1.1  christos    The global hash table entry for the global symbols can be found
   8140  1.1  christos    via elf_sym_hashes (input_bfd).
   8141  1.1  christos 
   8142  1.1  christos    When generating relocatable output, this function must handle
   8143  1.1  christos    STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
   8144  1.1  christos    going to be the section symbol corresponding to the output
   8145  1.1  christos    section, which means that the addend must be adjusted
   8146  1.3  christos    accordingly.  */
   8147  1.1  christos 
   8148  1.1  christos static bfd_boolean
   8149  1.3  christos ppc_elf_relocate_section (bfd *output_bfd,
   8150  1.1  christos 			  struct bfd_link_info *info,
   8151  1.1  christos 			  bfd *input_bfd,
   8152  1.7  christos 			  asection *input_section,
   8153  1.1  christos 			  bfd_byte *contents,
   8154  1.3  christos 			  Elf_Internal_Rela *relocs,
   8155  1.3  christos 			  Elf_Internal_Sym *local_syms,
   8156  1.1  christos 			  asection **local_sections)
   8157  1.1  christos {
   8158  1.7  christos   Elf_Internal_Shdr *symtab_hdr;
   8159  1.1  christos   struct elf_link_hash_entry **sym_hashes;
   8160  1.1  christos   struct ppc_elf_link_hash_table *htab;
   8161  1.1  christos   Elf_Internal_Rela *rel;
   8162  1.3  christos   Elf_Internal_Rela *wrel;
   8163  1.1  christos   Elf_Internal_Rela *relend;
   8164  1.1  christos   Elf_Internal_Rela outrel;
   8165  1.1  christos   asection *got2;
   8166  1.1  christos   bfd_vma *local_got_offsets;
   8167  1.1  christos   bfd_boolean ret = TRUE;
   8168  1.1  christos   bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0);
   8169  1.1  christos   bfd_boolean is_vxworks_tls;
   8170  1.1  christos   unsigned int picfixup_size = 0;
   8171  1.1  christos   struct ppc_elf_relax_info *relax_info = NULL;
   8172  1.1  christos 
   8173  1.1  christos #ifdef DEBUG
   8174  1.1  christos   _bfd_error_handler ("ppc_elf_relocate_section called for %pB section %pA, "
   8175  1.1  christos 		      "%ld relocations%s",
   8176  1.1  christos 		      input_bfd, input_section,
   8177  1.3  christos 		      (long) input_section->reloc_count,
   8178  1.1  christos 		      (bfd_link_relocatable (info)) ? " (relocatable)" : "");
   8179  1.1  christos #endif
   8180  1.3  christos 
   8181  1.3  christos   got2 = bfd_get_section_by_name (input_bfd, ".got2");
   8182  1.3  christos 
   8183  1.1  christos   /* Initialize howto table if not already done.  */
   8184  1.3  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   8185  1.1  christos     ppc_elf_howto_init ();
   8186  1.1  christos 
   8187  1.1  christos   htab = ppc_elf_hash_table (info);
   8188  1.1  christos   local_got_offsets = elf_local_got_offsets (input_bfd);
   8189  1.1  christos   symtab_hdr = &elf_symtab_hdr (input_bfd);
   8190  1.1  christos   sym_hashes = elf_sym_hashes (input_bfd);
   8191  1.1  christos   /* We have to handle relocations in vxworks .tls_vars sections
   8192  1.1  christos      specially, because the dynamic loader is 'weird'.  */
   8193  1.1  christos   is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
   8194  1.1  christos 		    && !strcmp (input_section->output_section->name,
   8195  1.1  christos 				".tls_vars"));
   8196  1.1  christos   if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET)
   8197  1.7  christos     relax_info = elf_section_data (input_section)->sec_info;
   8198  1.1  christos   rel = wrel = relocs;
   8199  1.1  christos   relend = relocs + input_section->reloc_count;
   8200  1.7  christos   for (; rel < relend; wrel++, rel++)
   8201  1.3  christos     {
   8202  1.1  christos       enum elf_ppc_reloc_type r_type;
   8203  1.3  christos       bfd_vma addend;
   8204  1.1  christos       bfd_reloc_status_type r;
   8205  1.1  christos       Elf_Internal_Sym *sym;
   8206  1.1  christos       asection *sec;
   8207  1.1  christos       struct elf_link_hash_entry *h;
   8208  1.1  christos       const char *sym_name;
   8209  1.1  christos       reloc_howto_type *howto;
   8210  1.1  christos       unsigned long r_symndx;
   8211  1.1  christos       bfd_vma relocation;
   8212  1.1  christos       bfd_vma branch_bit, from;
   8213  1.1  christos       bfd_boolean unresolved_reloc, save_unresolved_reloc;
   8214  1.1  christos       bfd_boolean warned;
   8215  1.1  christos       unsigned int tls_type, tls_mask, tls_gd;
   8216  1.1  christos       struct plt_entry **ifunc, **plt_list;
   8217  1.1  christos       struct reloc_howto_struct alt_howto;
   8218  1.1  christos 
   8219  1.1  christos     again:
   8220  1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   8221  1.1  christos       sym = NULL;
   8222  1.3  christos       sec = NULL;
   8223  1.3  christos       h = NULL;
   8224  1.1  christos       unresolved_reloc = FALSE;
   8225  1.1  christos       warned = FALSE;
   8226  1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   8227  1.3  christos 
   8228  1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   8229  1.1  christos 	{
   8230  1.1  christos 	  sym = local_syms + r_symndx;
   8231  1.1  christos 	  sec = local_sections[r_symndx];
   8232  1.1  christos 	  sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
   8233  1.1  christos 
   8234  1.1  christos 	  relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
   8235  1.1  christos 	}
   8236  1.1  christos       else
   8237  1.1  christos 	{
   8238  1.1  christos 	  bfd_boolean ignored;
   8239  1.1  christos 
   8240  1.3  christos 	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
   8241  1.3  christos 				   r_symndx, symtab_hdr, sym_hashes,
   8242  1.3  christos 				   h, sec, relocation,
   8243  1.3  christos 				   unresolved_reloc, warned, ignored);
   8244  1.3  christos 
   8245  1.3  christos 	  sym_name = h->root.root.string;
   8246  1.3  christos 	}
   8247  1.3  christos 
   8248  1.7  christos       if (sec != NULL && discarded_section (sec))
   8249  1.3  christos 	{
   8250  1.3  christos 	  /* For relocs against symbols from removed linkonce sections,
   8251  1.3  christos 	     or sections discarded by a linker script, we just want the
   8252  1.3  christos 	     section contents zeroed.  Avoid any special processing.  */
   8253  1.3  christos 	  howto = NULL;
   8254  1.3  christos 	  if (r_type < R_PPC_max)
   8255  1.3  christos 	    howto = ppc_elf_howto_table[r_type];
   8256  1.1  christos 
   8257  1.1  christos 	  _bfd_clear_contents (howto, input_bfd, input_section,
   8258  1.3  christos 			       contents + rel->r_offset);
   8259  1.1  christos 	  wrel->r_offset = rel->r_offset;
   8260  1.1  christos 	  wrel->r_info = 0;
   8261  1.1  christos 	  wrel->r_addend = 0;
   8262  1.1  christos 
   8263  1.1  christos 	  /* For ld -r, remove relocations in debug sections against
   8264  1.1  christos 	     symbols defined in discarded sections.  Not done for
   8265  1.1  christos 	     non-debug to preserve relocs in .eh_frame which the
   8266  1.1  christos 	     eh_frame editing code expects to be present.  */
   8267  1.1  christos 	  if (bfd_link_relocatable (info)
   8268  1.3  christos 	      && (input_section->flags & SEC_DEBUGGING))
   8269  1.3  christos 	    wrel--;
   8270  1.3  christos 
   8271  1.3  christos 	  continue;
   8272  1.1  christos 	}
   8273  1.1  christos 
   8274  1.1  christos       if (bfd_link_relocatable (info))
   8275  1.1  christos 	{
   8276  1.1  christos 	  if (got2 != NULL
   8277  1.1  christos 	      && r_type == R_PPC_PLTREL24
   8278  1.1  christos 	      && rel->r_addend != 0)
   8279  1.1  christos 	    {
   8280  1.1  christos 	      /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   8281  1.1  christos 		 addend specifies the GOT pointer offset within .got2.  */
   8282  1.1  christos 	      rel->r_addend += got2->output_offset;
   8283  1.1  christos 	    }
   8284  1.1  christos 	  if (r_type != R_PPC_RELAX_PLT
   8285  1.1  christos 	      && r_type != R_PPC_RELAX_PLTREL24
   8286  1.1  christos 	      && r_type != R_PPC_RELAX)
   8287  1.1  christos 	    goto copy_reloc;
   8288  1.1  christos 	}
   8289  1.1  christos 
   8290  1.1  christos       /* TLS optimizations.  Replace instruction sequences and relocs
   8291  1.1  christos 	 based on information we collected in tls_optimize.  We edit
   8292  1.1  christos 	 RELOCS so that --emit-relocs will output something sensible
   8293  1.1  christos 	 for the final instruction stream.  */
   8294  1.1  christos       tls_mask = 0;
   8295  1.1  christos       tls_gd = 0;
   8296  1.1  christos       if (h != NULL)
   8297  1.1  christos 	tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
   8298  1.1  christos       else if (local_got_offsets != NULL)
   8299  1.1  christos 	{
   8300  1.1  christos 	  struct plt_entry **local_plt;
   8301  1.1  christos 	  char *lgot_masks;
   8302  1.1  christos 	  local_plt
   8303  1.1  christos 	    = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
   8304  1.1  christos 	  lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
   8305  1.1  christos 	  tls_mask = lgot_masks[r_symndx];
   8306  1.1  christos 	}
   8307  1.1  christos 
   8308  1.1  christos       /* Ensure reloc mapping code below stays sane.  */
   8309  1.1  christos       if ((R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TLSGD16 & 3)
   8310  1.1  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
   8311  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
   8312  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
   8313  1.1  christos 	  || (R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TPREL16 & 3)
   8314  1.7  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
   8315  1.3  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
   8316  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
   8317  1.1  christos 	abort ();
   8318  1.7  christos       switch (r_type)
   8319  1.3  christos 	{
   8320  1.1  christos 	default:
   8321  1.1  christos 	  break;
   8322  1.1  christos 
   8323  1.1  christos 	case R_PPC_GOT_TPREL16:
   8324  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   8325  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   8326  1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   8327  1.1  christos 	    {
   8328  1.1  christos 	      bfd_vma insn;
   8329  1.1  christos 
   8330  1.1  christos 	      insn = bfd_get_32 (input_bfd,
   8331  1.7  christos 				 contents + rel->r_offset - d_offset);
   8332  1.1  christos 	      insn &= 31 << 21;
   8333  1.1  christos 	      insn |= 0x3c020000;	/* addis 0,2,0 */
   8334  1.1  christos 	      bfd_put_32 (input_bfd, insn,
   8335  1.7  christos 			  contents + rel->r_offset - d_offset);
   8336  1.1  christos 	      r_type = R_PPC_TPREL16_HA;
   8337  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8338  1.1  christos 	    }
   8339  1.1  christos 	  break;
   8340  1.1  christos 
   8341  1.1  christos 	case R_PPC_TLS:
   8342  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   8343  1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   8344  1.1  christos 	    {
   8345  1.1  christos 	      bfd_vma insn;
   8346  1.1  christos 
   8347  1.1  christos 	      insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
   8348  1.1  christos 	      insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
   8349  1.1  christos 	      if (insn == 0)
   8350  1.1  christos 		abort ();
   8351  1.1  christos 	      bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   8352  1.1  christos 	      r_type = R_PPC_TPREL16_LO;
   8353  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8354  1.1  christos 
   8355  1.1  christos 	      /* Was PPC_TLS which sits on insn boundary, now
   8356  1.1  christos 		 PPC_TPREL16_LO which is at low-order half-word.  */
   8357  1.1  christos 	      rel->r_offset += d_offset;
   8358  1.1  christos 	    }
   8359  1.1  christos 	  break;
   8360  1.1  christos 
   8361  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   8362  1.3  christos 	case R_PPC_GOT_TLSGD16_HA:
   8363  1.7  christos 	  tls_gd = TLS_TPRELGD;
   8364  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   8365  1.1  christos 	    goto tls_gdld_hi;
   8366  1.1  christos 	  break;
   8367  1.1  christos 
   8368  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   8369  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   8370  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   8371  1.1  christos 	    {
   8372  1.1  christos 	    tls_gdld_hi:
   8373  1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   8374  1.1  christos 		r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   8375  1.1  christos 			  + R_PPC_GOT_TPREL16);
   8376  1.1  christos 	      else
   8377  1.1  christos 		{
   8378  1.1  christos 		  rel->r_offset -= d_offset;
   8379  1.1  christos 		  bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
   8380  1.1  christos 		  r_type = R_PPC_NONE;
   8381  1.1  christos 		}
   8382  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8383  1.1  christos 	    }
   8384  1.1  christos 	  break;
   8385  1.1  christos 
   8386  1.1  christos 	case R_PPC_GOT_TLSGD16:
   8387  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   8388  1.1  christos 	  tls_gd = TLS_TPRELGD;
   8389  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   8390  1.1  christos 	    goto tls_ldgd_opt;
   8391  1.1  christos 	  break;
   8392  1.1  christos 
   8393  1.1  christos 	case R_PPC_GOT_TLSLD16:
   8394  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   8395  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   8396  1.3  christos 	    {
   8397  1.3  christos 	      unsigned int insn1, insn2;
   8398  1.3  christos 	      bfd_vma offset;
   8399  1.3  christos 
   8400  1.7  christos 	    tls_ldgd_opt:
   8401  1.3  christos 	      offset = (bfd_vma) -1;
   8402  1.1  christos 	      /* If not using the newer R_PPC_TLSGD/LD to mark
   8403  1.1  christos 		 __tls_get_addr calls, we must trust that the call
   8404  1.1  christos 		 stays with its arg setup insns, ie. that the next
   8405  1.3  christos 		 reloc is the __tls_get_addr call associated with
   8406  1.1  christos 		 the current reloc.  Edit both insns.  */
   8407  1.1  christos 	      if (input_section->has_tls_get_addr_call
   8408  1.1  christos 		  && rel + 1 < relend
   8409  1.1  christos 		  && branch_reloc_hash_match (input_bfd, rel + 1,
   8410  1.1  christos 					      htab->tls_get_addr))
   8411  1.7  christos 		offset = rel[1].r_offset;
   8412  1.1  christos 	      /* We read the low GOT_TLS insn because we need to keep
   8413  1.1  christos 		 the destination reg.  It may be something other than
   8414  1.1  christos 		 the usual r3, and moved to r3 before the call by
   8415  1.1  christos 		 intervening code.  */
   8416  1.1  christos 	      insn1 = bfd_get_32 (input_bfd,
   8417  1.1  christos 				  contents + rel->r_offset - d_offset);
   8418  1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   8419  1.1  christos 		{
   8420  1.3  christos 		  /* IE */
   8421  1.3  christos 		  insn1 &= (0x1f << 21) | (0x1f << 16);
   8422  1.1  christos 		  insn1 |= 32 << 26;	/* lwz */
   8423  1.1  christos 		  if (offset != (bfd_vma) -1)
   8424  1.1  christos 		    {
   8425  1.1  christos 		      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8426  1.1  christos 		      insn2 = 0x7c631214;	/* add 3,3,2 */
   8427  1.1  christos 		      bfd_put_32 (input_bfd, insn2, contents + offset);
   8428  1.1  christos 		    }
   8429  1.1  christos 		  r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   8430  1.1  christos 			    + R_PPC_GOT_TPREL16);
   8431  1.1  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8432  1.1  christos 		}
   8433  1.1  christos 	      else
   8434  1.1  christos 		{
   8435  1.1  christos 		  /* LE */
   8436  1.1  christos 		  insn1 &= 0x1f << 21;
   8437  1.1  christos 		  insn1 |= 0x3c020000;	/* addis r,2,0 */
   8438  1.1  christos 		  if (tls_gd == 0)
   8439  1.1  christos 		    {
   8440  1.1  christos 		      /* Was an LD reloc.  */
   8441  1.1  christos 		      for (r_symndx = 0;
   8442  1.1  christos 			   r_symndx < symtab_hdr->sh_info;
   8443  1.1  christos 			   r_symndx++)
   8444  1.1  christos 			if (local_sections[r_symndx] == sec)
   8445  1.1  christos 			  break;
   8446  1.7  christos 		      if (r_symndx >= symtab_hdr->sh_info)
   8447  1.1  christos 			r_symndx = STN_UNDEF;
   8448  1.1  christos 		      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   8449  1.7  christos 		      if (r_symndx != STN_UNDEF)
   8450  1.1  christos 			rel->r_addend -= (local_syms[r_symndx].st_value
   8451  1.1  christos 					  + sec->output_offset
   8452  1.1  christos 					  + sec->output_section->vma);
   8453  1.1  christos 		    }
   8454  1.1  christos 		  r_type = R_PPC_TPREL16_HA;
   8455  1.3  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8456  1.1  christos 		  if (offset != (bfd_vma) -1)
   8457  1.1  christos 		    {
   8458  1.1  christos 		      rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   8459  1.1  christos 		      rel[1].r_offset = offset + d_offset;
   8460  1.1  christos 		      rel[1].r_addend = rel->r_addend;
   8461  1.7  christos 		      insn2 = 0x38630000;	/* addi 3,3,0 */
   8462  1.7  christos 		      bfd_put_32 (input_bfd, insn2, contents + offset);
   8463  1.1  christos 		    }
   8464  1.1  christos 		}
   8465  1.1  christos 	      bfd_put_32 (input_bfd, insn1,
   8466  1.1  christos 			  contents + rel->r_offset - d_offset);
   8467  1.7  christos 	      if (tls_gd == 0)
   8468  1.7  christos 		{
   8469  1.7  christos 		  /* We changed the symbol on an LD reloc.  Start over
   8470  1.7  christos 		     in order to get h, sym, sec etc. right.  */
   8471  1.7  christos 		  goto again;
   8472  1.7  christos 		}
   8473  1.7  christos 	    }
   8474  1.1  christos 	  break;
   8475  1.1  christos 
   8476  1.1  christos 	case R_PPC_TLSGD:
   8477  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0
   8478  1.1  christos 	      && rel + 1 < relend)
   8479  1.1  christos 	    {
   8480  1.1  christos 	      unsigned int insn2;
   8481  1.1  christos 	      bfd_vma offset = rel->r_offset;
   8482  1.1  christos 
   8483  1.1  christos 	      if (is_plt_seq_reloc (ELF32_R_TYPE (rel[1].r_info)))
   8484  1.1  christos 		{
   8485  1.1  christos 		  bfd_put_32 (input_bfd, NOP, contents + offset);
   8486  1.1  christos 		  rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8487  1.1  christos 		  break;
   8488  1.7  christos 		}
   8489  1.1  christos 
   8490  1.1  christos 	      if ((tls_mask & TLS_TPRELGD) != 0)
   8491  1.1  christos 		{
   8492  1.1  christos 		  /* IE */
   8493  1.1  christos 		  r_type = R_PPC_NONE;
   8494  1.1  christos 		  insn2 = 0x7c631214;	/* add 3,3,2 */
   8495  1.1  christos 		}
   8496  1.7  christos 	      else
   8497  1.7  christos 		{
   8498  1.1  christos 		  /* LE */
   8499  1.1  christos 		  r_type = R_PPC_TPREL16_LO;
   8500  1.1  christos 		  rel->r_offset += d_offset;
   8501  1.7  christos 		  insn2 = 0x38630000;	/* addi 3,3,0 */
   8502  1.7  christos 		}
   8503  1.7  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   8504  1.7  christos 	      bfd_put_32 (input_bfd, insn2, contents + offset);
   8505  1.7  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   8506  1.7  christos 	      BFD_ASSERT (offset == rel[1].r_offset);
   8507  1.7  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8508  1.1  christos 	    }
   8509  1.1  christos 	  break;
   8510  1.1  christos 
   8511  1.1  christos 	case R_PPC_TLSLD:
   8512  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0
   8513  1.1  christos 	      && rel + 1 < relend)
   8514  1.1  christos 	    {
   8515  1.1  christos 	      unsigned int insn2;
   8516  1.1  christos 
   8517  1.1  christos 	      if (is_plt_seq_reloc (ELF32_R_TYPE (rel[1].r_info)))
   8518  1.1  christos 		{
   8519  1.1  christos 		  bfd_put_32 (input_bfd, NOP, contents + rel->r_offset);
   8520  1.1  christos 		  rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8521  1.1  christos 		  break;
   8522  1.1  christos 		}
   8523  1.1  christos 
   8524  1.7  christos 	      for (r_symndx = 0;
   8525  1.1  christos 		   r_symndx < symtab_hdr->sh_info;
   8526  1.1  christos 		   r_symndx++)
   8527  1.1  christos 		if (local_sections[r_symndx] == sec)
   8528  1.1  christos 		  break;
   8529  1.3  christos 	      if (r_symndx >= symtab_hdr->sh_info)
   8530  1.1  christos 		r_symndx = STN_UNDEF;
   8531  1.1  christos 	      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   8532  1.1  christos 	      if (r_symndx != STN_UNDEF)
   8533  1.1  christos 		rel->r_addend -= (local_syms[r_symndx].st_value
   8534  1.1  christos 				  + sec->output_offset
   8535  1.1  christos 				  + sec->output_section->vma);
   8536  1.1  christos 
   8537  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   8538  1.1  christos 	      rel->r_offset += d_offset;
   8539  1.1  christos 	      insn2 = 0x38630000;	/* addi 3,3,0 */
   8540  1.1  christos 	      bfd_put_32 (input_bfd, insn2,
   8541  1.1  christos 			  contents + rel->r_offset - d_offset);
   8542  1.1  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   8543  1.1  christos 	      BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
   8544  1.1  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   8545  1.7  christos 	      goto again;
   8546  1.1  christos 	    }
   8547  1.1  christos 	  break;
   8548  1.1  christos 	}
   8549  1.1  christos 
   8550  1.1  christos       /* Handle other relocations that tweak non-addend part of insn.  */
   8551  1.7  christos       branch_bit = 0;
   8552  1.1  christos       switch (r_type)
   8553  1.7  christos 	{
   8554  1.1  christos 	default:
   8555  1.1  christos 	  break;
   8556  1.1  christos 
   8557  1.1  christos 	  /* Branch taken prediction relocations.  */
   8558  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   8559  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   8560  1.1  christos 	  branch_bit = BRANCH_PREDICT_BIT;
   8561  1.1  christos 	  /* Fall through.  */
   8562  1.1  christos 
   8563  1.1  christos 	  /* Branch not taken prediction relocations.  */
   8564  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   8565  1.7  christos 	case R_PPC_REL14_BRNTAKEN:
   8566  1.7  christos 	  {
   8567  1.7  christos 	    unsigned int insn;
   8568  1.7  christos 
   8569  1.7  christos 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
   8570  1.7  christos 	    insn &= ~BRANCH_PREDICT_BIT;
   8571  1.7  christos 	    insn |= branch_bit;
   8572  1.7  christos 
   8573  1.7  christos 	    from = (rel->r_offset
   8574  1.7  christos 		    + input_section->output_offset
   8575  1.7  christos 		    + input_section->output_section->vma);
   8576  1.7  christos 
   8577  1.7  christos 	    /* Invert 'y' bit if not the default.  */
   8578  1.7  christos 	    if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
   8579  1.7  christos 	      insn ^= BRANCH_PREDICT_BIT;
   8580  1.7  christos 
   8581  1.7  christos 	    bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   8582  1.7  christos 	  }
   8583  1.7  christos 	  break;
   8584  1.7  christos 
   8585  1.7  christos 	case R_PPC_PLT16_HA:
   8586  1.7  christos 	  {
   8587  1.7  christos 	    unsigned int insn;
   8588  1.7  christos 
   8589  1.7  christos 	    insn = bfd_get_32 (input_bfd,
   8590  1.7  christos 			       contents + rel->r_offset - d_offset);
   8591  1.1  christos 	    if ((insn & (0x3f << 26)) == 15u << 26
   8592  1.7  christos 		&& (insn & (0x1f << 16)) != 0)
   8593  1.1  christos 	      {
   8594  1.1  christos 		if (!bfd_link_pic (info))
   8595  1.3  christos 		  {
   8596  1.3  christos 		    /* Convert addis to lis.  */
   8597  1.3  christos 		    insn &= ~(0x1f << 16);
   8598  1.3  christos 		    bfd_put_32 (input_bfd, insn,
   8599  1.3  christos 				contents + rel->r_offset - d_offset);
   8600  1.3  christos 		  }
   8601  1.3  christos 	      }
   8602  1.3  christos 	    else if (bfd_link_pic (info))
   8603  1.3  christos 	      info->callbacks->einfo
   8604  1.3  christos 		(_("%P: %H: error: %s with unexpected instruction %x\n"),
   8605  1.3  christos 		 input_bfd, input_section, rel->r_offset,
   8606  1.3  christos 		 "R_PPC_PLT16_HA", insn);
   8607  1.3  christos 	  }
   8608  1.3  christos 	  break;
   8609  1.7  christos 	}
   8610  1.3  christos 
   8611  1.3  christos       if (ELIMINATE_COPY_RELOCS
   8612  1.3  christos 	  && h != NULL
   8613  1.3  christos 	  && !h->def_regular
   8614  1.3  christos 	  && h->protected_def
   8615  1.3  christos 	  && ppc_elf_hash_entry (h)->has_addr16_ha
   8616  1.3  christos 	  && ppc_elf_hash_entry (h)->has_addr16_lo
   8617  1.3  christos 	  && htab->params->pic_fixup > 0)
   8618  1.3  christos 	{
   8619  1.3  christos 	  /* Convert lis;addi or lis;load/store accessing a protected
   8620  1.3  christos 	     variable defined in a shared library to PIC.  */
   8621  1.3  christos 	  unsigned int insn;
   8622  1.3  christos 
   8623  1.3  christos 	  if (r_type == R_PPC_ADDR16_HA)
   8624  1.3  christos 	    {
   8625  1.7  christos 	      insn = bfd_get_32 (input_bfd,
   8626  1.3  christos 				 contents + rel->r_offset - d_offset);
   8627  1.3  christos 	      if ((insn & (0x3f << 26)) == (15u << 26)
   8628  1.7  christos 		  && (insn & (0x1f << 16)) == 0 /* lis */)
   8629  1.3  christos 		{
   8630  1.7  christos 		  bfd_byte *p;
   8631  1.7  christos 		  bfd_vma off;
   8632  1.3  christos 		  bfd_vma got_addr;
   8633  1.3  christos 
   8634  1.3  christos 		  p = (contents + input_section->size
   8635  1.3  christos 		       - relax_info->workaround_size
   8636  1.3  christos 		       - relax_info->picfixup_size
   8637  1.7  christos 		       + picfixup_size);
   8638  1.7  christos 		  off = (p - contents) - (rel->r_offset - d_offset);
   8639  1.3  christos 		  if (off > 0x1fffffc || (off & 3) != 0)
   8640  1.3  christos 		    info->callbacks->einfo
   8641  1.3  christos 		      (_("%H: fixup branch overflow\n"),
   8642  1.3  christos 		       input_bfd, input_section, rel->r_offset);
   8643  1.3  christos 
   8644  1.3  christos 		  bfd_put_32 (input_bfd, B | off,
   8645  1.7  christos 			      contents + rel->r_offset - d_offset);
   8646  1.3  christos 		  got_addr = (htab->elf.sgot->output_section->vma
   8647  1.7  christos 			      + htab->elf.sgot->output_offset
   8648  1.3  christos 			      + (h->got.offset & ~1));
   8649  1.3  christos 		  wrel->r_offset = (p - contents) + d_offset;
   8650  1.3  christos 		  wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA);
   8651  1.3  christos 		  wrel->r_addend = got_addr;
   8652  1.3  christos 		  insn &= ~0xffff;
   8653  1.3  christos 		  insn |= ((unsigned int) (got_addr + 0x8000) >> 16) & 0xffff;
   8654  1.3  christos 		  bfd_put_32 (input_bfd, insn, p);
   8655  1.3  christos 
   8656  1.3  christos 		  /* Convert lis to lwz, loading address from GOT.  */
   8657  1.3  christos 		  insn &= ~0xffff;
   8658  1.3  christos 		  insn ^= (32u ^ 15u) << 26;
   8659  1.3  christos 		  insn |= (insn & (0x1f << 21)) >> 5;
   8660  1.3  christos 		  insn |= got_addr & 0xffff;
   8661  1.3  christos 		  bfd_put_32 (input_bfd, insn, p + 4);
   8662  1.3  christos 
   8663  1.7  christos 		  bfd_put_32 (input_bfd, B | ((-4 - off) & 0x3ffffff), p + 8);
   8664  1.7  christos 		  picfixup_size += 12;
   8665  1.7  christos 
   8666  1.7  christos 		  /* Use one of the spare relocs, so --emit-relocs
   8667  1.7  christos 		     output is reasonable.  */
   8668  1.3  christos 		  memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
   8669  1.3  christos 		  wrel++, rel++;
   8670  1.3  christos 		  rel->r_offset = wrel[-1].r_offset + 4;
   8671  1.3  christos 		  rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO);
   8672  1.7  christos 		  rel->r_addend = wrel[-1].r_addend;
   8673  1.3  christos 
   8674  1.3  christos 		  /* Continue on as if we had a got reloc, to output
   8675  1.3  christos 		     dynamic reloc.  */
   8676  1.3  christos 		  r_type = R_PPC_GOT16_LO;
   8677  1.3  christos 		}
   8678  1.3  christos 	      else
   8679  1.3  christos 		_bfd_error_handler
   8680  1.3  christos 		  /* xgettext:c-format */
   8681  1.3  christos 		  (_("%pB(%pA+%#" PRIx64 "): error: "
   8682  1.3  christos 		     "%s with unexpected instruction %#x"),
   8683  1.3  christos 		   input_bfd, input_section, (uint64_t) rel->r_offset,
   8684  1.3  christos 		   "R_PPC_ADDR16_HA", insn);
   8685  1.3  christos 	    }
   8686  1.3  christos 	  else if (r_type == R_PPC_ADDR16_LO)
   8687  1.3  christos 	    {
   8688  1.3  christos 	      insn = bfd_get_32 (input_bfd,
   8689  1.3  christos 				 contents + rel->r_offset - d_offset);
   8690  1.3  christos 	      if ((insn & (0x3f << 26)) == 14u << 26    /* addi */
   8691  1.3  christos 		  || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
   8692  1.3  christos 		  || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
   8693  1.3  christos 		  || (insn & (0x3f << 26)) == 36u << 26 /* stw */
   8694  1.3  christos 		  || (insn & (0x3f << 26)) == 38u << 26 /* stb */
   8695  1.3  christos 		  || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
   8696  1.3  christos 		  || (insn & (0x3f << 26)) == 42u << 26 /* lha */
   8697  1.3  christos 		  || (insn & (0x3f << 26)) == 44u << 26 /* sth */
   8698  1.3  christos 		  || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
   8699  1.7  christos 		  || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
   8700  1.7  christos 		  || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
   8701  1.7  christos 		  || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
   8702  1.7  christos 		  || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
   8703  1.7  christos 		  || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
   8704  1.3  christos 		  || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
   8705  1.3  christos 		      && (insn & 3) != 1)
   8706  1.3  christos 		  || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
   8707  1.3  christos 		      && ((insn & 3) == 0 || (insn & 3) == 3)))
   8708  1.1  christos 		{
   8709  1.1  christos 		  /* Arrange to apply the reloc addend, if any.  */
   8710  1.1  christos 		  relocation = 0;
   8711  1.1  christos 		  unresolved_reloc = FALSE;
   8712  1.1  christos 		  rel->r_info = ELF32_R_INFO (0, r_type);
   8713  1.1  christos 		}
   8714  1.1  christos 	      else
   8715  1.1  christos 		_bfd_error_handler
   8716  1.1  christos 		  /* xgettext:c-format */
   8717  1.1  christos 		  (_("%pB(%pA+%#" PRIx64 "): error: "
   8718  1.1  christos 		     "%s with unexpected instruction %#x"),
   8719  1.1  christos 		   input_bfd, input_section, (uint64_t) rel->r_offset,
   8720  1.1  christos 		   "R_PPC_ADDR16_LO", insn);
   8721  1.1  christos 	    }
   8722  1.1  christos 	}
   8723  1.1  christos 
   8724  1.1  christos       ifunc = NULL;
   8725  1.1  christos       if (!htab->is_vxworks)
   8726  1.1  christos 	{
   8727  1.1  christos 	  struct plt_entry *ent;
   8728  1.1  christos 
   8729  1.1  christos 	  if (h != NULL)
   8730  1.3  christos 	    {
   8731  1.7  christos 	      if (h->type == STT_GNU_IFUNC)
   8732  1.7  christos 		ifunc = &h->plt.plist;
   8733  1.7  christos 	    }
   8734  1.7  christos 	  else if (local_got_offsets != NULL
   8735  1.1  christos 		   && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
   8736  1.1  christos 	    {
   8737  1.7  christos 	      struct plt_entry **local_plt;
   8738  1.7  christos 
   8739  1.7  christos 	      local_plt = (struct plt_entry **) (local_got_offsets
   8740  1.7  christos 						 + symtab_hdr->sh_info);
   8741  1.7  christos 	      ifunc = local_plt + r_symndx;
   8742  1.1  christos 	    }
   8743  1.1  christos 
   8744  1.1  christos 	  ent = NULL;
   8745  1.1  christos 	  if (ifunc != NULL
   8746  1.1  christos 	      && (!bfd_link_pic (info)
   8747  1.7  christos 		  || is_branch_reloc (r_type)
   8748  1.7  christos 		  || r_type == R_PPC_PLT16_LO
   8749  1.7  christos 		  || r_type == R_PPC_PLT16_HI
   8750  1.7  christos 		  || r_type == R_PPC_PLT16_HA))
   8751  1.7  christos 	    {
   8752  1.7  christos 	      addend = 0;
   8753  1.1  christos 	      if (bfd_link_pic (info)
   8754  1.7  christos 		  && (r_type == R_PPC_PLTREL24
   8755  1.7  christos 		      || r_type == R_PPC_PLT16_LO
   8756  1.7  christos 		      || r_type == R_PPC_PLT16_HI
   8757  1.7  christos 		      || r_type == R_PPC_PLT16_HA))
   8758  1.7  christos 		addend = rel->r_addend;
   8759  1.7  christos 	      ent = find_plt_ent (ifunc, got2, addend);
   8760  1.7  christos 	    }
   8761  1.7  christos 	  if (ent != NULL)
   8762  1.7  christos 	    {
   8763  1.7  christos 	      if (bfd_link_pic (info)
   8764  1.7  christos 		  && ent->sec != got2
   8765  1.7  christos 		  && htab->plt_type != PLT_NEW
   8766  1.7  christos 		  && (!htab->elf.dynamic_sections_created
   8767  1.1  christos 		      || h == NULL
   8768  1.1  christos 		      || h->dynindx == -1))
   8769  1.1  christos 		{
   8770  1.1  christos 		  /* Uh oh, we are going to create a pic glink stub
   8771  1.1  christos 		     for an ifunc (here for h == NULL and later in
   8772  1.3  christos 		     finish_dynamic_symbol for h != NULL), and
   8773  1.3  christos 		     apparently are using code compiled with
   8774  1.1  christos 		     -mbss-plt.  The difficulty is that -mbss-plt code
   8775  1.1  christos 		     gives no indication via a magic PLTREL24 addend
   8776  1.1  christos 		     whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or
   8777  1.1  christos 		     is pointing into a .got2 section (and how far
   8778  1.7  christos 		     into .got2).  */
   8779  1.7  christos 		    info->callbacks->einfo
   8780  1.1  christos 		      /* xgettext:c-format */
   8781  1.1  christos 		      (_("%X%H: unsupported bss-plt -fPIC ifunc %s\n"),
   8782  1.1  christos 		       input_bfd, input_section, rel->r_offset, sym_name);
   8783  1.1  christos 		}
   8784  1.1  christos 
   8785  1.7  christos 	      unresolved_reloc = FALSE;
   8786  1.1  christos 	      if (htab->plt_type == PLT_NEW
   8787  1.1  christos 		  || !htab->elf.dynamic_sections_created
   8788  1.1  christos 		  || h == NULL
   8789  1.7  christos 		  || h->dynindx == -1)
   8790  1.7  christos 		relocation = (htab->glink->output_section->vma
   8791  1.7  christos 			      + htab->glink->output_offset
   8792  1.7  christos 			      + (ent->glink_offset & ~1));
   8793  1.7  christos 	      else
   8794  1.7  christos 		relocation = (htab->elf.splt->output_section->vma
   8795  1.7  christos 			      + htab->elf.splt->output_offset
   8796  1.7  christos 			      + ent->plt.offset);
   8797  1.7  christos 	    }
   8798  1.7  christos 	}
   8799  1.7  christos 
   8800  1.7  christos       addend = rel->r_addend;
   8801  1.7  christos       save_unresolved_reloc = unresolved_reloc;
   8802  1.7  christos       howto = NULL;
   8803  1.7  christos       if (r_type < R_PPC_max)
   8804  1.7  christos 	howto = ppc_elf_howto_table[r_type];
   8805  1.7  christos 
   8806  1.7  christos       switch (r_type)
   8807  1.7  christos 	{
   8808  1.7  christos 	default:
   8809  1.7  christos 	  break;
   8810  1.7  christos 
   8811  1.7  christos 	case R_PPC_TPREL16_HA:
   8812  1.7  christos 	  if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
   8813  1.7  christos 	    {
   8814  1.7  christos 	      bfd_byte *p = contents + (rel->r_offset & ~3);
   8815  1.7  christos 	      unsigned int insn = bfd_get_32 (input_bfd, p);
   8816  1.7  christos 	      if ((insn & ((0x3f << 26) | 0x1f << 16))
   8817  1.7  christos 		  != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)
   8818  1.7  christos 		/* xgettext:c-format */
   8819  1.7  christos 		info->callbacks->minfo
   8820  1.7  christos 		  (_("%H: warning: %s unexpected insn %#x.\n"),
   8821  1.7  christos 		   input_bfd, input_section, rel->r_offset, howto->name, insn);
   8822  1.7  christos 	      else
   8823  1.7  christos 		bfd_put_32 (input_bfd, NOP, p);
   8824  1.7  christos 	    }
   8825  1.1  christos 	  break;
   8826  1.1  christos 
   8827  1.7  christos 	case R_PPC_TPREL16_LO:
   8828  1.7  christos 	  if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000)
   8829  1.7  christos 	    {
   8830  1.1  christos 	      bfd_byte *p = contents + (rel->r_offset & ~3);
   8831  1.1  christos 	      unsigned int insn = bfd_get_32 (input_bfd, p);
   8832  1.1  christos 	      insn &= ~(0x1f << 16);
   8833  1.3  christos 	      insn |= 2 << 16;
   8834  1.1  christos 	      bfd_put_32 (input_bfd, insn, p);
   8835  1.1  christos 	    }
   8836  1.1  christos 	  break;
   8837  1.1  christos 	}
   8838  1.1  christos 
   8839  1.1  christos       tls_type = 0;
   8840  1.1  christos       switch (r_type)
   8841  1.1  christos 	{
   8842  1.3  christos 	default:
   8843  1.1  christos 	  /* xgettext:c-format */
   8844  1.1  christos 	  _bfd_error_handler (_("%pB: %s unsupported"),
   8845  1.1  christos 			      input_bfd, howto->name);
   8846  1.1  christos 
   8847  1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   8848  1.1  christos 	  ret = FALSE;
   8849  1.1  christos 	  goto copy_reloc;
   8850  1.1  christos 
   8851  1.1  christos 	case R_PPC_NONE:
   8852  1.1  christos 	case R_PPC_TLS:
   8853  1.1  christos 	case R_PPC_TLSGD:
   8854  1.1  christos 	case R_PPC_TLSLD:
   8855  1.1  christos 	case R_PPC_EMB_MRKREF:
   8856  1.1  christos 	case R_PPC_GNU_VTINHERIT:
   8857  1.1  christos 	case R_PPC_GNU_VTENTRY:
   8858  1.1  christos 	  goto copy_reloc;
   8859  1.1  christos 
   8860  1.1  christos 	  /* GOT16 relocations.  Like an ADDR16 using the symbol's
   8861  1.1  christos 	     address in the GOT as relocation value instead of the
   8862  1.1  christos 	     symbol's value itself.  Also, create a GOT entry for the
   8863  1.1  christos 	     symbol and put the symbol value there.  */
   8864  1.1  christos 	case R_PPC_GOT_TLSGD16:
   8865  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   8866  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   8867  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   8868  1.1  christos 	  tls_type = TLS_TLS | TLS_GD;
   8869  1.1  christos 	  goto dogot;
   8870  1.1  christos 
   8871  1.1  christos 	case R_PPC_GOT_TLSLD16:
   8872  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   8873  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   8874  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   8875  1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   8876  1.1  christos 	  goto dogot;
   8877  1.1  christos 
   8878  1.1  christos 	case R_PPC_GOT_TPREL16:
   8879  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   8880  1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   8881  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   8882  1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   8883  1.1  christos 	  goto dogot;
   8884  1.1  christos 
   8885  1.1  christos 	case R_PPC_GOT_DTPREL16:
   8886  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   8887  1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   8888  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   8889  1.7  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   8890  1.1  christos 	  goto dogot;
   8891  1.1  christos 
   8892  1.1  christos 	case R_PPC_GOT16:
   8893  1.1  christos 	case R_PPC_GOT16_LO:
   8894  1.1  christos 	case R_PPC_GOT16_HI:
   8895  1.1  christos 	case R_PPC_GOT16_HA:
   8896  1.1  christos 	  tls_mask = 0;
   8897  1.1  christos 	dogot:
   8898  1.1  christos 	  {
   8899  1.7  christos 	    /* Relocation is to the entry for this symbol in the global
   8900  1.7  christos 	       offset table.  */
   8901  1.7  christos 	    bfd_vma off;
   8902  1.7  christos 	    bfd_vma *offp;
   8903  1.1  christos 	    unsigned long indx;
   8904  1.1  christos 
   8905  1.1  christos 	    if (htab->elf.sgot == NULL)
   8906  1.1  christos 	      abort ();
   8907  1.1  christos 
   8908  1.1  christos 	    indx = 0;
   8909  1.1  christos 	    if (tls_type == (TLS_TLS | TLS_LD)
   8910  1.1  christos 		&& (h == NULL
   8911  1.1  christos 		    || !h->def_dynamic))
   8912  1.1  christos 	      offp = &htab->tlsld_got.offset;
   8913  1.1  christos 	    else if (h != NULL)
   8914  1.1  christos 	      {
   8915  1.1  christos 		if (!htab->elf.dynamic_sections_created
   8916  1.1  christos 		    || h->dynindx == -1
   8917  1.1  christos 		    || SYMBOL_REFERENCES_LOCAL (info, h)
   8918  1.1  christos 		    || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
   8919  1.1  christos 		  /* This is actually a static link, or it is a
   8920  1.1  christos 		     -Bsymbolic link and the symbol is defined
   8921  1.1  christos 		     locally, or the symbol was forced to be local
   8922  1.1  christos 		     because of a version file.  */
   8923  1.1  christos 		  ;
   8924  1.1  christos 		else
   8925  1.1  christos 		  {
   8926  1.1  christos 		    indx = h->dynindx;
   8927  1.1  christos 		    unresolved_reloc = FALSE;
   8928  1.1  christos 		  }
   8929  1.1  christos 		offp = &h->got.offset;
   8930  1.7  christos 	      }
   8931  1.7  christos 	    else
   8932  1.7  christos 	      {
   8933  1.7  christos 		if (local_got_offsets == NULL)
   8934  1.1  christos 		  abort ();
   8935  1.1  christos 		offp = &local_got_offsets[r_symndx];
   8936  1.1  christos 	      }
   8937  1.1  christos 
   8938  1.1  christos 	    /* The offset must always be a multiple of 4.  We use the
   8939  1.1  christos 	       least significant bit to record whether we have already
   8940  1.1  christos 	       processed this entry.  */
   8941  1.1  christos 	    off = *offp;
   8942  1.1  christos 	    if ((off & 1) != 0)
   8943  1.1  christos 	      off &= ~1;
   8944  1.1  christos 	    else
   8945  1.1  christos 	      {
   8946  1.1  christos 		unsigned int tls_m = ((tls_mask & TLS_TLS) != 0
   8947  1.1  christos 				      ? tls_mask & (TLS_LD | TLS_GD | TLS_DTPREL
   8948  1.1  christos 						    | TLS_TPREL | TLS_TPRELGD)
   8949  1.1  christos 				      : 0);
   8950  1.1  christos 
   8951  1.1  christos 		if (offp == &htab->tlsld_got.offset)
   8952  1.1  christos 		  tls_m = TLS_LD;
   8953  1.1  christos 		else if (h == NULL
   8954  1.1  christos 			 || !h->def_dynamic)
   8955  1.1  christos 		  tls_m &= ~TLS_LD;
   8956  1.1  christos 
   8957  1.1  christos 		/* We might have multiple got entries for this sym.
   8958  1.1  christos 		   Initialize them all.  */
   8959  1.1  christos 		do
   8960  1.1  christos 		  {
   8961  1.1  christos 		    int tls_ty = 0;
   8962  1.1  christos 
   8963  1.1  christos 		    if ((tls_m & TLS_LD) != 0)
   8964  1.1  christos 		      {
   8965  1.1  christos 			tls_ty = TLS_TLS | TLS_LD;
   8966  1.1  christos 			tls_m &= ~TLS_LD;
   8967  1.1  christos 		      }
   8968  1.1  christos 		    else if ((tls_m & TLS_GD) != 0)
   8969  1.7  christos 		      {
   8970  1.7  christos 			tls_ty = TLS_TLS | TLS_GD;
   8971  1.7  christos 			tls_m &= ~TLS_GD;
   8972  1.7  christos 		      }
   8973  1.7  christos 		    else if ((tls_m & TLS_DTPREL) != 0)
   8974  1.7  christos 		      {
   8975  1.7  christos 			tls_ty = TLS_TLS | TLS_DTPREL;
   8976  1.7  christos 			tls_m &= ~TLS_DTPREL;
   8977  1.1  christos 		      }
   8978  1.7  christos 		    else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
   8979  1.1  christos 		      {
   8980  1.1  christos 			tls_ty = TLS_TLS | TLS_TPREL;
   8981  1.3  christos 			tls_m = 0;
   8982  1.7  christos 		      }
   8983  1.7  christos 
   8984  1.7  christos 		    /* Generate relocs for the dynamic linker.  */
   8985  1.7  christos 		    if (indx != 0
   8986  1.7  christos 			|| (bfd_link_pic (info)
   8987  1.7  christos 			    && (h == NULL
   8988  1.7  christos 				|| !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)
   8989  1.7  christos 				|| offp == &htab->tlsld_got.offset)
   8990  1.7  christos 			    && !(tls_ty == (TLS_TLS | TLS_TPREL)
   8991  1.1  christos 				 && bfd_link_executable (info)
   8992  1.1  christos 				 && SYMBOL_REFERENCES_LOCAL (info, h))))
   8993  1.1  christos 		      {
   8994  1.1  christos 			asection *rsec = htab->elf.srelgot;
   8995  1.1  christos 			bfd_byte * loc;
   8996  1.1  christos 
   8997  1.1  christos 			if (ifunc != NULL)
   8998  1.1  christos 			  {
   8999  1.1  christos 			    rsec = htab->elf.irelplt;
   9000  1.1  christos 			    if (indx == 0)
   9001  1.1  christos 			      htab->local_ifunc_resolver = 1;
   9002  1.1  christos 			    else if (is_static_defined (h))
   9003  1.1  christos 			      htab->maybe_local_ifunc_resolver = 1;
   9004  1.1  christos 			  }
   9005  1.1  christos 			outrel.r_offset = (htab->elf.sgot->output_section->vma
   9006  1.1  christos 					   + htab->elf.sgot->output_offset
   9007  1.1  christos 					   + off);
   9008  1.1  christos 			outrel.r_addend = 0;
   9009  1.1  christos 			if (tls_ty & (TLS_LD | TLS_GD))
   9010  1.1  christos 			  {
   9011  1.1  christos 			    outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
   9012  1.1  christos 			    if (tls_ty == (TLS_TLS | TLS_GD))
   9013  1.1  christos 			      {
   9014  1.1  christos 				loc = rsec->contents;
   9015  1.1  christos 				loc += (rsec->reloc_count++
   9016  1.1  christos 					* sizeof (Elf32_External_Rela));
   9017  1.1  christos 				bfd_elf32_swap_reloca_out (output_bfd,
   9018  1.1  christos 							   &outrel, loc);
   9019  1.1  christos 				outrel.r_offset += 4;
   9020  1.1  christos 				outrel.r_info
   9021  1.1  christos 				  = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   9022  1.3  christos 			      }
   9023  1.3  christos 			  }
   9024  1.3  christos 			else if (tls_ty == (TLS_TLS | TLS_DTPREL))
   9025  1.3  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   9026  1.3  christos 			else if (tls_ty == (TLS_TLS | TLS_TPREL))
   9027  1.3  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
   9028  1.1  christos 			else if (indx != 0)
   9029  1.1  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
   9030  1.1  christos 			else if (ifunc != NULL)
   9031  1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   9032  1.1  christos 			else
   9033  1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   9034  1.1  christos 			if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
   9035  1.1  christos 			  {
   9036  1.1  christos 			    outrel.r_addend += relocation;
   9037  1.1  christos 			    if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
   9038  1.1  christos 			      {
   9039  1.1  christos 				if (htab->elf.tls_sec == NULL)
   9040  1.1  christos 				  outrel.r_addend = 0;
   9041  1.7  christos 				else
   9042  1.1  christos 				  outrel.r_addend -= htab->elf.tls_sec->vma;
   9043  1.3  christos 			      }
   9044  1.3  christos 			  }
   9045  1.3  christos 			loc = rsec->contents;
   9046  1.3  christos 			loc += (rsec->reloc_count++
   9047  1.7  christos 				* sizeof (Elf32_External_Rela));
   9048  1.7  christos 			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   9049  1.7  christos 		      }
   9050  1.7  christos 
   9051  1.7  christos 		    /* Init the .got section contents if we're not
   9052  1.3  christos 		       emitting a reloc.  */
   9053  1.3  christos 		    else
   9054  1.1  christos 		      {
   9055  1.7  christos 			bfd_vma value = relocation;
   9056  1.1  christos 
   9057  1.7  christos 			if (tls_ty != 0)
   9058  1.7  christos 			  {
   9059  1.1  christos 			    if (htab->elf.tls_sec == NULL)
   9060  1.1  christos 			      value = 0;
   9061  1.1  christos 			    else
   9062  1.7  christos 			      {
   9063  1.7  christos 				if (tls_ty & TLS_LD)
   9064  1.1  christos 				  value = 0;
   9065  1.1  christos 				else
   9066  1.1  christos 				  value -= htab->elf.tls_sec->vma + DTP_OFFSET;
   9067  1.1  christos 				if (tls_ty & TLS_TPREL)
   9068  1.1  christos 				  value += DTP_OFFSET - TP_OFFSET;
   9069  1.1  christos 			      }
   9070  1.1  christos 
   9071  1.1  christos 			    if (tls_ty & (TLS_LD | TLS_GD))
   9072  1.1  christos 			      {
   9073  1.1  christos 				bfd_put_32 (input_bfd, value,
   9074  1.1  christos 					    htab->elf.sgot->contents + off + 4);
   9075  1.1  christos 				value = 1;
   9076  1.1  christos 			      }
   9077  1.1  christos 			  }
   9078  1.1  christos 			bfd_put_32 (input_bfd, value,
   9079  1.1  christos 				    htab->elf.sgot->contents + off);
   9080  1.1  christos 		      }
   9081  1.1  christos 
   9082  1.1  christos 		    off += 4;
   9083  1.1  christos 		    if (tls_ty & (TLS_LD | TLS_GD))
   9084  1.1  christos 		      off += 4;
   9085  1.1  christos 		  }
   9086  1.1  christos 		while (tls_m != 0);
   9087  1.1  christos 
   9088  1.1  christos 		off = *offp;
   9089  1.1  christos 		*offp = off | 1;
   9090  1.1  christos 	      }
   9091  1.1  christos 
   9092  1.1  christos 	    if (off >= (bfd_vma) -2)
   9093  1.1  christos 	      abort ();
   9094  1.1  christos 
   9095  1.1  christos 	    if ((tls_type & TLS_TLS) != 0)
   9096  1.1  christos 	      {
   9097  1.1  christos 		if (tls_type != (TLS_TLS | TLS_LD))
   9098  1.1  christos 		  {
   9099  1.1  christos 		    if ((tls_mask & TLS_LD) != 0
   9100  1.3  christos 			&& !(h == NULL
   9101  1.3  christos 			     || !h->def_dynamic))
   9102  1.3  christos 		      off += 8;
   9103  1.3  christos 		    if (tls_type != (TLS_TLS | TLS_GD))
   9104  1.7  christos 		      {
   9105  1.7  christos 			if ((tls_mask & TLS_GD) != 0)
   9106  1.1  christos 			  off += 8;
   9107  1.1  christos 			if (tls_type != (TLS_TLS | TLS_DTPREL))
   9108  1.1  christos 			  {
   9109  1.1  christos 			    if ((tls_mask & TLS_DTPREL) != 0)
   9110  1.1  christos 			      off += 4;
   9111  1.1  christos 			  }
   9112  1.1  christos 		      }
   9113  1.1  christos 		  }
   9114  1.1  christos 	      }
   9115  1.7  christos 
   9116  1.7  christos 	    /* If here for a picfixup, we're done.  */
   9117  1.1  christos 	    if (r_type != ELF32_R_TYPE (rel->r_info))
   9118  1.1  christos 	      goto copy_reloc;
   9119  1.1  christos 
   9120  1.1  christos 	    relocation = (htab->elf.sgot->output_section->vma
   9121  1.3  christos 			  + htab->elf.sgot->output_offset
   9122  1.1  christos 			  + off
   9123  1.3  christos 			  - SYM_VAL (htab->elf.hgot));
   9124  1.1  christos 
   9125  1.1  christos 	    /* Addends on got relocations don't make much sense.
   9126  1.1  christos 	       x+off@got is actually x@got+off, and since the got is
   9127  1.1  christos 	       generated by a hash table traversal, the value in the
   9128  1.1  christos 	       got at entry m+n bears little relation to the entry m.  */
   9129  1.6  christos 	    if (addend != 0)
   9130  1.6  christos 	      info->callbacks->einfo
   9131  1.6  christos 		/* xgettext:c-format */
   9132  1.6  christos 		(_("%H: non-zero addend on %s reloc against `%s'\n"),
   9133  1.6  christos 		 input_bfd, input_section, rel->r_offset,
   9134  1.6  christos 		 howto->name,
   9135  1.3  christos 		 sym_name);
   9136  1.1  christos 	  }
   9137  1.7  christos 	  break;
   9138  1.7  christos 
   9139  1.7  christos 	  /* Relocations that need no special processing.  */
   9140  1.7  christos 	case R_PPC_LOCAL24PC:
   9141  1.7  christos 	  /* It makes no sense to point a local relocation
   9142  1.7  christos 	     at a symbol not in this object.  */
   9143  1.7  christos 	  if (unresolved_reloc)
   9144  1.7  christos 	    {
   9145  1.7  christos 	      (*info->callbacks->undefined_symbol) (info,
   9146  1.7  christos 						    h->root.root.string,
   9147  1.7  christos 						    input_bfd,
   9148  1.7  christos 						    input_section,
   9149  1.7  christos 						    rel->r_offset,
   9150  1.7  christos 						    TRUE);
   9151  1.7  christos 	      goto copy_reloc;
   9152  1.1  christos 	    }
   9153  1.1  christos 	  if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info))
   9154  1.1  christos 	    {
   9155  1.1  christos 	      /* @local on an ifunc does not really make sense since
   9156  1.1  christos 		 the ifunc resolver can take you anywhere.  More
   9157  1.1  christos 		 seriously, calls to ifuncs must go through a plt call
   9158  1.3  christos 		 stub, and for pic the plt call stubs uses r30 to
   9159  1.3  christos 		 access the PLT.  The problem is that a call that is
   9160  1.1  christos 		 local won't have the +32k reloc addend trick marking
   9161  1.1  christos 		 -fPIC code, so the linker won't know whether r30 is
   9162  1.1  christos 		 _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section.  */
   9163  1.1  christos 	      /* xgettext:c-format */
   9164  1.1  christos 	      info->callbacks->einfo (_("%X%H: @local call to ifunc %s\n"),
   9165  1.1  christos 				      input_bfd, input_section, rel->r_offset,
   9166  1.1  christos 				      h->root.root.string);
   9167  1.1  christos 	    }
   9168  1.1  christos 	  break;
   9169  1.1  christos 
   9170  1.1  christos 	case R_PPC_DTPREL16:
   9171  1.1  christos 	case R_PPC_DTPREL16_LO:
   9172  1.1  christos 	case R_PPC_DTPREL16_HI:
   9173  1.1  christos 	case R_PPC_DTPREL16_HA:
   9174  1.1  christos 	  if (htab->elf.tls_sec != NULL)
   9175  1.1  christos 	    addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   9176  1.1  christos 	  break;
   9177  1.7  christos 
   9178  1.1  christos 	  /* Relocations that may need to be propagated if this is a shared
   9179  1.1  christos 	     object.  */
   9180  1.7  christos 	case R_PPC_TPREL16:
   9181  1.1  christos 	case R_PPC_TPREL16_LO:
   9182  1.1  christos 	case R_PPC_TPREL16_HI:
   9183  1.3  christos 	case R_PPC_TPREL16_HA:
   9184  1.3  christos 	  if (h != NULL
   9185  1.1  christos 	      && h->root.type == bfd_link_hash_undefweak
   9186  1.7  christos 	      && h->dynindx == -1)
   9187  1.7  christos 	    {
   9188  1.1  christos 	      /* Make this relocation against an undefined weak symbol
   9189  1.1  christos 		 resolve to zero.  This is really just a tweak, since
   9190  1.1  christos 		 code using weak externs ought to check that they are
   9191  1.3  christos 		 defined before using them.  */
   9192  1.3  christos 	      bfd_byte *p = contents + rel->r_offset - d_offset;
   9193  1.1  christos 	      unsigned int insn = bfd_get_32 (input_bfd, p);
   9194  1.1  christos 	      insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
   9195  1.1  christos 	      if (insn != 0)
   9196  1.3  christos 		bfd_put_32 (input_bfd, insn, p);
   9197  1.3  christos 	      break;
   9198  1.1  christos 	    }
   9199  1.1  christos 	  if (htab->elf.tls_sec != NULL)
   9200  1.1  christos 	    addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   9201  1.1  christos 	  /* The TPREL16 relocs shouldn't really be used in shared
   9202  1.1  christos 	     libs or with non-local symbols as that will result in
   9203  1.1  christos 	     DT_TEXTREL being set, but support them anyway.  */
   9204  1.1  christos 	  goto dodyn;
   9205  1.1  christos 
   9206  1.1  christos 	case R_PPC_TPREL32:
   9207  1.1  christos 	  if (htab->elf.tls_sec != NULL)
   9208  1.1  christos 	    addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   9209  1.3  christos 	  goto dodyn;
   9210  1.1  christos 
   9211  1.1  christos 	case R_PPC_DTPREL32:
   9212  1.1  christos 	  if (htab->elf.tls_sec != NULL)
   9213  1.1  christos 	    addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   9214  1.1  christos 	  goto dodyn;
   9215  1.1  christos 
   9216  1.1  christos 	case R_PPC_DTPMOD32:
   9217  1.1  christos 	  relocation = 1;
   9218  1.1  christos 	  addend = 0;
   9219  1.1  christos 	  goto dodyn;
   9220  1.1  christos 
   9221  1.1  christos 	case R_PPC_REL16:
   9222  1.1  christos 	case R_PPC_REL16_LO:
   9223  1.1  christos 	case R_PPC_REL16_HI:
   9224  1.1  christos 	case R_PPC_REL16_HA:
   9225  1.1  christos 	case R_PPC_REL16DX_HA:
   9226  1.1  christos 	  break;
   9227  1.1  christos 
   9228  1.1  christos 	case R_PPC_REL32:
   9229  1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   9230  1.1  christos 	    break;
   9231  1.1  christos 	  /* fall through */
   9232  1.1  christos 
   9233  1.1  christos 	case R_PPC_ADDR32:
   9234  1.1  christos 	case R_PPC_ADDR16:
   9235  1.1  christos 	case R_PPC_ADDR16_LO:
   9236  1.1  christos 	case R_PPC_ADDR16_HI:
   9237  1.1  christos 	case R_PPC_ADDR16_HA:
   9238  1.1  christos 	case R_PPC_UADDR32:
   9239  1.1  christos 	case R_PPC_UADDR16:
   9240  1.1  christos 	  goto dodyn;
   9241  1.1  christos 
   9242  1.1  christos 	case R_PPC_VLE_REL8:
   9243  1.1  christos 	case R_PPC_VLE_REL15:
   9244  1.3  christos 	case R_PPC_VLE_REL24:
   9245  1.1  christos 	case R_PPC_REL24:
   9246  1.1  christos 	case R_PPC_REL14:
   9247  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   9248  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   9249  1.1  christos 	  /* If these relocations are not to a named symbol, they can be
   9250  1.1  christos 	     handled right here, no need to bother the dynamic linker.  */
   9251  1.1  christos 	  if (SYMBOL_CALLS_LOCAL (info, h)
   9252  1.1  christos 	      || h == htab->elf.hgot)
   9253  1.7  christos 	    break;
   9254  1.7  christos 	  /* fall through */
   9255  1.7  christos 
   9256  1.7  christos 	case R_PPC_ADDR24:
   9257  1.7  christos 	case R_PPC_ADDR14:
   9258  1.7  christos 	case R_PPC_ADDR14_BRTAKEN:
   9259  1.7  christos 	case R_PPC_ADDR14_BRNTAKEN:
   9260  1.1  christos 	  if (h != NULL && !bfd_link_pic (info))
   9261  1.1  christos 	    break;
   9262  1.3  christos 	  /* fall through */
   9263  1.3  christos 
   9264  1.7  christos 	dodyn:
   9265  1.7  christos 	  if ((input_section->flags & SEC_ALLOC) == 0
   9266  1.1  christos 	      || is_vxworks_tls)
   9267  1.1  christos 	    break;
   9268  1.1  christos 
   9269  1.1  christos 	  if (bfd_link_pic (info)
   9270  1.1  christos 	      ? ((h == NULL
   9271  1.1  christos 		  || ppc_elf_hash_entry (h)->dyn_relocs != NULL)
   9272  1.1  christos 		 && ((h != NULL && pc_dynrelocs (h))
   9273  1.1  christos 		     || must_be_dyn_reloc (info, r_type)))
   9274  1.1  christos 	      : (h != NULL
   9275  1.1  christos 		 && ppc_elf_hash_entry (h)->dyn_relocs != NULL))
   9276  1.1  christos 	    {
   9277  1.1  christos 	      int skip;
   9278  1.1  christos 	      bfd_byte *loc;
   9279  1.1  christos 	      asection *sreloc;
   9280  1.1  christos 	      long indx = 0;
   9281  1.1  christos 
   9282  1.1  christos #ifdef DEBUG
   9283  1.1  christos 	      fprintf (stderr, "ppc_elf_relocate_section needs to "
   9284  1.1  christos 		       "create relocation for %s\n",
   9285  1.1  christos 		       (h && h->root.root.string
   9286  1.1  christos 			? h->root.root.string : "<unknown>"));
   9287  1.1  christos #endif
   9288  1.7  christos 
   9289  1.1  christos 	      /* When generating a shared object, these relocations
   9290  1.7  christos 		 are copied into the output file to be resolved at run
   9291  1.7  christos 		 time.  */
   9292  1.1  christos 	      skip = 0;
   9293  1.7  christos 	      outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
   9294  1.1  christos 							 input_section,
   9295  1.1  christos 							 rel->r_offset);
   9296  1.1  christos 	      if (outrel.r_offset == (bfd_vma) -1
   9297  1.1  christos 		  || outrel.r_offset == (bfd_vma) -2)
   9298  1.1  christos 		skip = (int) outrel.r_offset;
   9299  1.1  christos 	      outrel.r_offset += (input_section->output_section->vma
   9300  1.1  christos 				  + input_section->output_offset);
   9301  1.1  christos 
   9302  1.1  christos 	      if (skip)
   9303  1.1  christos 		memset (&outrel, 0, sizeof outrel);
   9304  1.1  christos 	      else if (!SYMBOL_REFERENCES_LOCAL (info, h))
   9305  1.1  christos 		{
   9306  1.1  christos 		  indx = h->dynindx;
   9307  1.1  christos 		  BFD_ASSERT (indx != -1);
   9308  1.1  christos 		  unresolved_reloc = FALSE;
   9309  1.1  christos 		  outrel.r_info = ELF32_R_INFO (indx, r_type);
   9310  1.1  christos 		  outrel.r_addend = rel->r_addend;
   9311  1.1  christos 		}
   9312  1.1  christos 	      else
   9313  1.1  christos 		{
   9314  1.1  christos 		  outrel.r_addend = relocation + rel->r_addend;
   9315  1.1  christos 
   9316  1.1  christos 		  if (r_type != R_PPC_ADDR32)
   9317  1.7  christos 		    {
   9318  1.7  christos 		      if (ifunc != NULL)
   9319  1.1  christos 			{
   9320  1.1  christos 			  /* If we get here when building a static
   9321  1.1  christos 			     executable, then the libc startup function
   9322  1.1  christos 			     responsible for applying indirect function
   9323  1.1  christos 			     relocations is going to complain about
   9324  1.1  christos 			     the reloc type.
   9325  1.1  christos 			     If we get here when building a dynamic
   9326  1.1  christos 			     executable, it will be because we have
   9327  1.1  christos 			     a text relocation.  The dynamic loader
   9328  1.1  christos 			     will set the text segment writable and
   9329  1.1  christos 			     non-executable to apply text relocations.
   9330  1.1  christos 			     So we'll segfault when trying to run the
   9331  1.1  christos 			     indirection function to resolve the reloc.  */
   9332  1.1  christos 			  info->callbacks->einfo
   9333  1.1  christos 			    /* xgettext:c-format */
   9334  1.1  christos 			    (_("%H: relocation %s for indirect "
   9335  1.1  christos 			       "function %s unsupported\n"),
   9336  1.1  christos 			     input_bfd, input_section, rel->r_offset,
   9337  1.1  christos 			     howto->name,
   9338  1.1  christos 			     sym_name);
   9339  1.1  christos 			  ret = FALSE;
   9340  1.1  christos 			}
   9341  1.1  christos 		      else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
   9342  1.1  christos 			;
   9343  1.1  christos 		      else if (sec == NULL || sec->owner == NULL)
   9344  1.1  christos 			{
   9345  1.1  christos 			  bfd_set_error (bfd_error_bad_value);
   9346  1.1  christos 			  ret = FALSE;
   9347  1.1  christos 			}
   9348  1.1  christos 		      else
   9349  1.1  christos 			{
   9350  1.1  christos 			  asection *osec;
   9351  1.1  christos 
   9352  1.1  christos 			  /* We are turning this relocation into one
   9353  1.1  christos 			     against a section symbol.  It would be
   9354  1.1  christos 			     proper to subtract the symbol's value,
   9355  1.1  christos 			     osec->vma, from the emitted reloc addend,
   9356  1.1  christos 			     but ld.so expects buggy relocs.
   9357  1.1  christos 			     FIXME: Why not always use a zero index?  */
   9358  1.1  christos 			  osec = sec->output_section;
   9359  1.1  christos 			  indx = elf_section_data (osec)->dynindx;
   9360  1.1  christos 			  if (indx == 0)
   9361  1.1  christos 			    {
   9362  1.1  christos 			      osec = htab->elf.text_index_section;
   9363  1.1  christos 			      indx = elf_section_data (osec)->dynindx;
   9364  1.1  christos 			    }
   9365  1.1  christos 			  BFD_ASSERT (indx != 0);
   9366  1.7  christos #ifdef DEBUG
   9367  1.7  christos 			  if (indx == 0)
   9368  1.7  christos 			    printf ("indx=%ld section=%s flags=%08x name=%s\n",
   9369  1.7  christos 				    indx, osec->name, osec->flags,
   9370  1.7  christos 				    h->root.root.string);
   9371  1.7  christos #endif
   9372  1.7  christos 			}
   9373  1.7  christos 
   9374  1.7  christos 		      outrel.r_info = ELF32_R_INFO (indx, r_type);
   9375  1.7  christos 		    }
   9376  1.7  christos 		  else if (ifunc != NULL)
   9377  1.7  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   9378  1.1  christos 		  else
   9379  1.1  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   9380  1.1  christos 		}
   9381  1.1  christos 
   9382  1.1  christos 	      sreloc = elf_section_data (input_section)->sreloc;
   9383  1.3  christos 	      if (ifunc)
   9384  1.1  christos 		{
   9385  1.7  christos 		  sreloc = htab->elf.irelplt;
   9386  1.7  christos 		  if (indx == 0)
   9387  1.7  christos 		    htab->local_ifunc_resolver = 1;
   9388  1.1  christos 		  else if (is_static_defined (h))
   9389  1.1  christos 		    htab->maybe_local_ifunc_resolver = 1;
   9390  1.1  christos 		}
   9391  1.1  christos 	      if (sreloc == NULL)
   9392  1.1  christos 		return FALSE;
   9393  1.1  christos 
   9394  1.1  christos 	      loc = sreloc->contents;
   9395  1.1  christos 	      loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
   9396  1.1  christos 	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   9397  1.1  christos 
   9398  1.1  christos 	      if (skip == -1)
   9399  1.1  christos 		goto copy_reloc;
   9400  1.1  christos 
   9401  1.1  christos 	      /* This reloc will be computed at runtime.  Clear the memory
   9402  1.1  christos 		 so that it contains a predictable value for prelink.  */
   9403  1.1  christos 	      if (!skip)
   9404  1.1  christos 		{
   9405  1.3  christos 		  relocation = howto->pc_relative ? outrel.r_offset : 0;
   9406  1.1  christos 		  addend = 0;
   9407  1.1  christos 		  break;
   9408  1.1  christos 		}
   9409  1.1  christos 	    }
   9410  1.1  christos 	  break;
   9411  1.1  christos 
   9412  1.1  christos 	case R_PPC_RELAX_PLT:
   9413  1.1  christos 	case R_PPC_RELAX_PLTREL24:
   9414  1.1  christos 	  if (h != NULL)
   9415  1.7  christos 	    {
   9416  1.7  christos 	      struct plt_entry *ent;
   9417  1.1  christos 	      bfd_vma got2_addend = 0;
   9418  1.1  christos 
   9419  1.7  christos 	      if (r_type == R_PPC_RELAX_PLTREL24)
   9420  1.1  christos 		{
   9421  1.1  christos 		  if (bfd_link_pic (info))
   9422  1.1  christos 		    got2_addend = addend;
   9423  1.3  christos 		  addend = 0;
   9424  1.3  christos 		}
   9425  1.3  christos 	      ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
   9426  1.3  christos 	      if (htab->plt_type == PLT_NEW)
   9427  1.3  christos 		relocation = (htab->glink->output_section->vma
   9428  1.3  christos 			      + htab->glink->output_offset
   9429  1.3  christos 			      + ent->glink_offset);
   9430  1.3  christos 	      else
   9431  1.3  christos 		relocation = (htab->elf.splt->output_section->vma
   9432  1.3  christos 			      + htab->elf.splt->output_offset
   9433  1.3  christos 			      + ent->plt.offset);
   9434  1.7  christos 	    }
   9435  1.7  christos 	  /* Fall through.  */
   9436  1.7  christos 
   9437  1.3  christos 	case R_PPC_RELAX:
   9438  1.3  christos 	  {
   9439  1.3  christos 	    const int *stub;
   9440  1.3  christos 	    size_t size;
   9441  1.3  christos 	    size_t insn_offset = rel->r_offset;
   9442  1.3  christos 	    unsigned int insn;
   9443  1.3  christos 
   9444  1.3  christos 	    if (bfd_link_pic (info))
   9445  1.1  christos 	      {
   9446  1.1  christos 		relocation -= (input_section->output_section->vma
   9447  1.3  christos 			       + input_section->output_offset
   9448  1.3  christos 			       + rel->r_offset - 4);
   9449  1.1  christos 		stub = shared_stub_entry;
   9450  1.3  christos 		bfd_put_32 (input_bfd, stub[0], contents + insn_offset - 12);
   9451  1.3  christos 		bfd_put_32 (input_bfd, stub[1], contents + insn_offset - 8);
   9452  1.3  christos 		bfd_put_32 (input_bfd, stub[2], contents + insn_offset - 4);
   9453  1.7  christos 		stub += 3;
   9454  1.3  christos 		size = ARRAY_SIZE (shared_stub_entry) - 3;
   9455  1.3  christos 	      }
   9456  1.3  christos 	    else
   9457  1.3  christos 	      {
   9458  1.7  christos 		stub = stub_entry;
   9459  1.3  christos 		size = ARRAY_SIZE (stub_entry);
   9460  1.3  christos 	      }
   9461  1.3  christos 
   9462  1.3  christos 	    relocation += addend;
   9463  1.3  christos 	    if (bfd_link_relocatable (info))
   9464  1.3  christos 	      relocation = 0;
   9465  1.3  christos 
   9466  1.7  christos 	    /* First insn is HA, second is LO.  */
   9467  1.3  christos 	    insn = *stub++;
   9468  1.3  christos 	    insn |= ((relocation + 0x8000) >> 16) & 0xffff;
   9469  1.1  christos 	    bfd_put_32 (input_bfd, insn, contents + insn_offset);
   9470  1.1  christos 	    insn_offset += 4;
   9471  1.1  christos 
   9472  1.1  christos 	    insn = *stub++;
   9473  1.1  christos 	    insn |= relocation & 0xffff;
   9474  1.3  christos 	    bfd_put_32 (input_bfd, insn, contents + insn_offset);
   9475  1.3  christos 	    insn_offset += 4;
   9476  1.3  christos 	    size -= 2;
   9477  1.3  christos 
   9478  1.3  christos 	    while (size != 0)
   9479  1.3  christos 	      {
   9480  1.3  christos 		insn = *stub++;
   9481  1.1  christos 		--size;
   9482  1.1  christos 		bfd_put_32 (input_bfd, insn, contents + insn_offset);
   9483  1.1  christos 		insn_offset += 4;
   9484  1.1  christos 	      }
   9485  1.1  christos 
   9486  1.1  christos 	    /* Rewrite the reloc and convert one of the trailing nop
   9487  1.1  christos 	       relocs to describe this relocation.  */
   9488  1.1  christos 	    BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
   9489  1.1  christos 	    /* The relocs are at the bottom 2 bytes */
   9490  1.1  christos 	    wrel->r_offset = rel->r_offset + d_offset;
   9491  1.1  christos 	    wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
   9492  1.1  christos 	    wrel->r_addend = rel->r_addend;
   9493  1.1  christos 	    memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel));
   9494  1.1  christos 	    wrel++, rel++;
   9495  1.1  christos 	    wrel->r_offset += 4;
   9496  1.1  christos 	    wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
   9497  1.1  christos 	  }
   9498  1.1  christos 	  continue;
   9499  1.1  christos 
   9500  1.1  christos 	  /* Indirect .sdata relocation.  */
   9501  1.1  christos 	case R_PPC_EMB_SDAI16:
   9502  1.1  christos 	  BFD_ASSERT (htab->sdata[0].section != NULL);
   9503  1.1  christos 	  if (!is_static_defined (htab->sdata[0].sym))
   9504  1.1  christos 	    {
   9505  1.1  christos 	      unresolved_reloc = TRUE;
   9506  1.1  christos 	      break;
   9507  1.1  christos 	    }
   9508  1.1  christos 	  relocation
   9509  1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
   9510  1.1  christos 						 h, relocation, rel);
   9511  1.1  christos 	  addend = 0;
   9512  1.1  christos 	  break;
   9513  1.1  christos 
   9514  1.1  christos 	  /* Indirect .sdata2 relocation.  */
   9515  1.1  christos 	case R_PPC_EMB_SDA2I16:
   9516  1.1  christos 	  BFD_ASSERT (htab->sdata[1].section != NULL);
   9517  1.1  christos 	  if (!is_static_defined (htab->sdata[1].sym))
   9518  1.1  christos 	    {
   9519  1.1  christos 	      unresolved_reloc = TRUE;
   9520  1.1  christos 	      break;
   9521  1.1  christos 	    }
   9522  1.1  christos 	  relocation
   9523  1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
   9524  1.1  christos 						 h, relocation, rel);
   9525  1.1  christos 	  addend = 0;
   9526  1.1  christos 	  break;
   9527  1.1  christos 
   9528  1.1  christos 	  /* Handle the TOC16 reloc.  We want to use the offset within the .got
   9529  1.1  christos 	     section, not the actual VMA.  This is appropriate when generating
   9530  1.1  christos 	     an embedded ELF object, for which the .got section acts like the
   9531  1.1  christos 	     AIX .toc section.  */
   9532  1.1  christos 	case R_PPC_TOC16:			/* phony GOT16 relocations */
   9533  1.3  christos 	  if (sec == NULL || sec->output_section == NULL)
   9534  1.3  christos 	    {
   9535  1.3  christos 	      unresolved_reloc = TRUE;
   9536  1.3  christos 	      break;
   9537  1.1  christos 	    }
   9538  1.7  christos 	  BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
   9539  1.1  christos 			      ".got") == 0
   9540  1.1  christos 		      || strcmp (bfd_get_section_name (sec->owner, sec),
   9541  1.1  christos 				 ".cgot") == 0);
   9542  1.1  christos 
   9543  1.1  christos 	  addend -= sec->output_section->vma + sec->output_offset + 0x8000;
   9544  1.1  christos 	  break;
   9545  1.1  christos 
   9546  1.1  christos 	case R_PPC_PLTREL24:
   9547  1.1  christos 	  if (h != NULL && ifunc == NULL)
   9548  1.1  christos 	    {
   9549  1.1  christos 	      struct plt_entry *ent;
   9550  1.1  christos 
   9551  1.1  christos 	      ent = find_plt_ent (&h->plt.plist, got2,
   9552  1.1  christos 				  bfd_link_pic (info) ? addend : 0);
   9553  1.1  christos 	      if (ent == NULL
   9554  1.7  christos 		  || htab->elf.splt == NULL)
   9555  1.7  christos 		{
   9556  1.1  christos 		  /* We didn't make a PLT entry for this symbol.  This
   9557  1.1  christos 		     happens when statically linking PIC code, or when
   9558  1.1  christos 		     using -Bsymbolic.  */
   9559  1.1  christos 		}
   9560  1.1  christos 	      else
   9561  1.1  christos 		{
   9562  1.1  christos 		  /* Relocation is to the entry for this symbol in the
   9563  1.1  christos 		     procedure linkage table.  */
   9564  1.1  christos 		  unresolved_reloc = FALSE;
   9565  1.1  christos 		  if (htab->plt_type == PLT_NEW)
   9566  1.7  christos 		    relocation = (htab->glink->output_section->vma
   9567  1.7  christos 				  + htab->glink->output_offset
   9568  1.7  christos 				  + ent->glink_offset);
   9569  1.7  christos 		  else
   9570  1.7  christos 		    relocation = (htab->elf.splt->output_section->vma
   9571  1.7  christos 				  + htab->elf.splt->output_offset
   9572  1.7  christos 				  + ent->plt.offset);
   9573  1.7  christos 		}
   9574  1.7  christos 	    }
   9575  1.7  christos 
   9576  1.7  christos 	  /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   9577  1.7  christos 	     addend specifies the GOT pointer offset within .got2.
   9578  1.7  christos 	     Don't apply it to the relocation field.  */
   9579  1.7  christos 	  addend = 0;
   9580  1.7  christos 	  break;
   9581  1.7  christos 
   9582  1.7  christos 	case R_PPC_PLTSEQ:
   9583  1.7  christos 	case R_PPC_PLTCALL:
   9584  1.7  christos 	case R_PPC_PLT16_LO:
   9585  1.7  christos 	case R_PPC_PLT16_HI:
   9586  1.7  christos 	case R_PPC_PLT16_HA:
   9587  1.7  christos 	  plt_list = NULL;
   9588  1.7  christos 	  if (h != NULL)
   9589  1.7  christos 	    plt_list = &h->plt.plist;
   9590  1.7  christos 	  else if (ifunc != NULL)
   9591  1.7  christos 	    plt_list = ifunc;
   9592  1.7  christos 	  else if (local_got_offsets != NULL)
   9593  1.7  christos 	    {
   9594  1.7  christos 	      struct plt_entry **local_plt;
   9595  1.7  christos 	      local_plt = (struct plt_entry **) (local_got_offsets
   9596  1.7  christos 						 + symtab_hdr->sh_info);
   9597  1.7  christos 	      plt_list = local_plt + r_symndx;
   9598  1.7  christos 	    }
   9599  1.7  christos 	  unresolved_reloc = TRUE;
   9600  1.7  christos 	  if (plt_list != NULL)
   9601  1.7  christos 	    {
   9602  1.7  christos 	      struct plt_entry *ent;
   9603  1.7  christos 
   9604  1.7  christos 	      ent = find_plt_ent (plt_list, got2,
   9605  1.7  christos 				  bfd_link_pic (info) ? addend : 0);
   9606  1.7  christos 	      if (ent != NULL && ent->plt.offset != (bfd_vma) -1)
   9607  1.7  christos 		{
   9608  1.7  christos 		  asection *plt;
   9609  1.7  christos 
   9610  1.7  christos 		  unresolved_reloc = FALSE;
   9611  1.7  christos 		  plt = htab->elf.splt;
   9612  1.7  christos 		  if (!htab->elf.dynamic_sections_created
   9613  1.7  christos 		      || h == NULL
   9614  1.7  christos 		      || h->dynindx == -1)
   9615  1.7  christos 		    {
   9616  1.7  christos 		      if (ifunc != NULL)
   9617  1.7  christos 			plt = htab->elf.iplt;
   9618  1.7  christos 		      else
   9619  1.7  christos 			plt = htab->pltlocal;
   9620  1.7  christos 		    }
   9621  1.7  christos 		  relocation = (plt->output_section->vma
   9622  1.7  christos 				+ plt->output_offset
   9623  1.7  christos 				+ ent->plt.offset);
   9624  1.7  christos 		  if (bfd_link_pic (info))
   9625  1.1  christos 		    {
   9626  1.1  christos 		      bfd_vma got = 0;
   9627  1.1  christos 
   9628  1.1  christos 		      if (ent->addend >= 32768)
   9629  1.1  christos 			got = (ent->addend
   9630  1.1  christos 			       + ent->sec->output_section->vma
   9631  1.1  christos 			       + ent->sec->output_offset);
   9632  1.1  christos 		      else
   9633  1.1  christos 			got = SYM_VAL (htab->elf.hgot);
   9634  1.1  christos 		      relocation -= got;
   9635  1.1  christos 		    }
   9636  1.1  christos 		}
   9637  1.1  christos 	    }
   9638  1.1  christos 	  addend = 0;
   9639  1.1  christos 	  break;
   9640  1.1  christos 
   9641  1.3  christos 	  /* Relocate against _SDA_BASE_.  */
   9642  1.3  christos 	case R_PPC_SDAREL16:
   9643  1.1  christos 	  {
   9644  1.7  christos 	    const char *name;
   9645  1.7  christos 	    struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   9646  1.7  christos 
   9647  1.7  christos 	    if (sec == NULL
   9648  1.1  christos 		|| sec->output_section == NULL
   9649  1.1  christos 		|| !is_static_defined (sda))
   9650  1.1  christos 	      {
   9651  1.1  christos 		unresolved_reloc = TRUE;
   9652  1.1  christos 		break;
   9653  1.1  christos 	      }
   9654  1.1  christos 	    addend -= SYM_VAL (sda);
   9655  1.1  christos 
   9656  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9657  1.1  christos 	    if (!(strcmp (name, ".sdata") == 0
   9658  1.1  christos 		  || strcmp (name, ".sbss") == 0))
   9659  1.1  christos 	      {
   9660  1.1  christos 		_bfd_error_handler
   9661  1.1  christos 		  /* xgettext:c-format */
   9662  1.1  christos 		  (_("%pB: the target (%s) of a %s relocation is "
   9663  1.1  christos 		     "in the wrong output section (%s)"),
   9664  1.1  christos 		   input_bfd,
   9665  1.1  christos 		   sym_name,
   9666  1.1  christos 		   howto->name,
   9667  1.1  christos 		   name);
   9668  1.1  christos 	      }
   9669  1.1  christos 	  }
   9670  1.1  christos 	  break;
   9671  1.1  christos 
   9672  1.3  christos 	  /* Relocate against _SDA2_BASE_.  */
   9673  1.3  christos 	case R_PPC_EMB_SDA2REL:
   9674  1.1  christos 	  {
   9675  1.7  christos 	    const char *name;
   9676  1.7  christos 	    struct elf_link_hash_entry *sda = htab->sdata[1].sym;
   9677  1.7  christos 
   9678  1.7  christos 	    if (sec == NULL
   9679  1.1  christos 		|| sec->output_section == NULL
   9680  1.1  christos 		|| !is_static_defined (sda))
   9681  1.1  christos 	      {
   9682  1.1  christos 		unresolved_reloc = TRUE;
   9683  1.1  christos 		break;
   9684  1.1  christos 	      }
   9685  1.1  christos 	    addend -= SYM_VAL (sda);
   9686  1.1  christos 
   9687  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9688  1.3  christos 	    if (!(strcmp (name, ".sdata2") == 0
   9689  1.7  christos 		  || strcmp (name, ".sbss2") == 0))
   9690  1.7  christos 	      {
   9691  1.7  christos 		_bfd_error_handler
   9692  1.3  christos 		  /* xgettext:c-format */
   9693  1.1  christos 		  (_("%pB: the target (%s) of a %s relocation is "
   9694  1.1  christos 		     "in the wrong output section (%s)"),
   9695  1.3  christos 		   input_bfd,
   9696  1.7  christos 		   sym_name,
   9697  1.7  christos 		   howto->name,
   9698  1.7  christos 		   name);
   9699  1.3  christos 	      }
   9700  1.1  christos 	  }
   9701  1.1  christos 	  break;
   9702  1.3  christos 
   9703  1.7  christos 	case R_PPC_VLE_LO16A:
   9704  1.7  christos 	  relocation = relocation + addend;
   9705  1.7  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9706  1.3  christos 			       contents + rel->r_offset, relocation,
   9707  1.1  christos 			       split16a_type, htab->params->vle_reloc_fixup);
   9708  1.1  christos 	  goto copy_reloc;
   9709  1.3  christos 
   9710  1.7  christos 	case R_PPC_VLE_LO16D:
   9711  1.7  christos 	  relocation = relocation + addend;
   9712  1.7  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9713  1.3  christos 			       contents + rel->r_offset, relocation,
   9714  1.1  christos 			       split16d_type, htab->params->vle_reloc_fixup);
   9715  1.1  christos 	  goto copy_reloc;
   9716  1.3  christos 
   9717  1.7  christos 	case R_PPC_VLE_HI16A:
   9718  1.7  christos 	  relocation = (relocation + addend) >> 16;
   9719  1.7  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9720  1.3  christos 			       contents + rel->r_offset, relocation,
   9721  1.1  christos 			       split16a_type, htab->params->vle_reloc_fixup);
   9722  1.1  christos 	  goto copy_reloc;
   9723  1.3  christos 
   9724  1.7  christos 	case R_PPC_VLE_HI16D:
   9725  1.7  christos 	  relocation = (relocation + addend) >> 16;
   9726  1.7  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9727  1.3  christos 			       contents + rel->r_offset, relocation,
   9728  1.1  christos 			       split16d_type, htab->params->vle_reloc_fixup);
   9729  1.1  christos 	  goto copy_reloc;
   9730  1.1  christos 
   9731  1.1  christos 	case R_PPC_VLE_HA16A:
   9732  1.1  christos 	  relocation = (relocation + addend + 0x8000) >> 16;
   9733  1.1  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9734  1.1  christos 			       contents + rel->r_offset, relocation,
   9735  1.1  christos 			       split16a_type, htab->params->vle_reloc_fixup);
   9736  1.1  christos 	  goto copy_reloc;
   9737  1.3  christos 
   9738  1.1  christos 	case R_PPC_VLE_HA16D:
   9739  1.1  christos 	  relocation = (relocation + addend + 0x8000) >> 16;
   9740  1.1  christos 	  ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9741  1.1  christos 			       contents + rel->r_offset, relocation,
   9742  1.1  christos 			       split16d_type, htab->params->vle_reloc_fixup);
   9743  1.1  christos 	  goto copy_reloc;
   9744  1.1  christos 
   9745  1.1  christos 	  /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0.  */
   9746  1.1  christos 	case R_PPC_EMB_SDA21:
   9747  1.3  christos 	case R_PPC_VLE_SDA21:
   9748  1.3  christos 	case R_PPC_EMB_RELSDA:
   9749  1.1  christos 	case R_PPC_VLE_SDA21_LO:
   9750  1.1  christos 	  {
   9751  1.1  christos 	    const char *name;
   9752  1.1  christos 	    int reg;
   9753  1.3  christos 	    unsigned int insn;
   9754  1.3  christos 	    struct elf_link_hash_entry *sda = NULL;
   9755  1.1  christos 
   9756  1.1  christos 	    if (sec == NULL || sec->output_section == NULL)
   9757  1.1  christos 	      {
   9758  1.1  christos 		unresolved_reloc = TRUE;
   9759  1.1  christos 		break;
   9760  1.1  christos 	      }
   9761  1.1  christos 
   9762  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9763  1.1  christos 	    if (strcmp (name, ".sdata") == 0
   9764  1.1  christos 		|| strcmp (name, ".sbss") == 0)
   9765  1.1  christos 	      {
   9766  1.7  christos 		reg = 13;
   9767  1.7  christos 		sda = htab->sdata[0].sym;
   9768  1.7  christos 	      }
   9769  1.7  christos 	    else if (strcmp (name, ".sdata2") == 0
   9770  1.1  christos 		     || strcmp (name, ".sbss2") == 0)
   9771  1.1  christos 	      {
   9772  1.1  christos 		reg = 2;
   9773  1.1  christos 		sda = htab->sdata[1].sym;
   9774  1.1  christos 	      }
   9775  1.1  christos 	    else if (strcmp (name, ".PPC.EMB.sdata0") == 0
   9776  1.1  christos 		     || strcmp (name, ".PPC.EMB.sbss0") == 0)
   9777  1.3  christos 	      {
   9778  1.1  christos 		reg = 0;
   9779  1.1  christos 	      }
   9780  1.1  christos 	    else
   9781  1.1  christos 	      {
   9782  1.1  christos 		_bfd_error_handler
   9783  1.1  christos 		  /* xgettext:c-format */
   9784  1.1  christos 		  (_("%pB: the target (%s) of a %s relocation is "
   9785  1.1  christos 		     "in the wrong output section (%s)"),
   9786  1.1  christos 		   input_bfd,
   9787  1.1  christos 		   sym_name,
   9788  1.1  christos 		   howto->name,
   9789  1.1  christos 		   name);
   9790  1.7  christos 
   9791  1.1  christos 		bfd_set_error (bfd_error_bad_value);
   9792  1.1  christos 		ret = FALSE;
   9793  1.1  christos 		goto copy_reloc;
   9794  1.1  christos 	      }
   9795  1.3  christos 
   9796  1.3  christos 	    if (sda != NULL)
   9797  1.3  christos 	      {
   9798  1.3  christos 		if (!is_static_defined (sda))
   9799  1.3  christos 		  {
   9800  1.3  christos 		    unresolved_reloc = TRUE;
   9801  1.3  christos 		    break;
   9802  1.3  christos 		  }
   9803  1.3  christos 		addend -= SYM_VAL (sda);
   9804  1.3  christos 	      }
   9805  1.3  christos 
   9806  1.3  christos 	    insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
   9807  1.3  christos 	    if (reg == 0
   9808  1.3  christos 		&& (r_type == R_PPC_VLE_SDA21
   9809  1.3  christos 		    || r_type == R_PPC_VLE_SDA21_LO))
   9810  1.7  christos 	      {
   9811  1.3  christos 		relocation = relocation + addend;
   9812  1.3  christos 		addend = 0;
   9813  1.3  christos 
   9814  1.3  christos 		/* Force e_li insn, keeping RT from original insn.  */
   9815  1.3  christos 		insn &= 0x1f << 21;
   9816  1.1  christos 		insn |= 28u << 26;
   9817  1.1  christos 
   9818  1.1  christos 		/* We have an li20 field, bits 17..20, 11..15, 21..31.  */
   9819  1.1  christos 		/* Top 4 bits of value to 17..20.  */
   9820  1.1  christos 		insn |= (relocation & 0xf0000) >> 5;
   9821  1.3  christos 		/* Next 5 bits of the value to 11..15.  */
   9822  1.1  christos 		insn |= (relocation & 0xf800) << 5;
   9823  1.1  christos 		/* And the final 11 bits of the value to bits 21 to 31.  */
   9824  1.7  christos 		insn |= relocation & 0x7ff;
   9825  1.1  christos 
   9826  1.1  christos 		bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   9827  1.1  christos 
   9828  1.1  christos 		if (r_type == R_PPC_VLE_SDA21
   9829  1.1  christos 		    && ((relocation + 0x80000) & 0xffffffff) > 0x100000)
   9830  1.1  christos 		  goto overflow;
   9831  1.1  christos 		goto copy_reloc;
   9832  1.1  christos 	      }
   9833  1.1  christos 	    else if (r_type == R_PPC_EMB_SDA21
   9834  1.1  christos 		     || r_type == R_PPC_VLE_SDA21
   9835  1.1  christos 		     || r_type == R_PPC_VLE_SDA21_LO)
   9836  1.1  christos 	      {
   9837  1.1  christos 		/* Fill in register field.  */
   9838  1.1  christos 		insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
   9839  1.1  christos 	      }
   9840  1.1  christos 	    bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   9841  1.1  christos 	  }
   9842  1.1  christos 	  break;
   9843  1.1  christos 
   9844  1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   9845  1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   9846  1.3  christos 	case R_PPC_VLE_SDAREL_HI16A:
   9847  1.3  christos 	case R_PPC_VLE_SDAREL_HI16D:
   9848  1.7  christos 	case R_PPC_VLE_SDAREL_HA16A:
   9849  1.3  christos 	case R_PPC_VLE_SDAREL_HA16D:
   9850  1.3  christos 	  {
   9851  1.7  christos 	    bfd_vma value;
   9852  1.1  christos 	    const char *name;
   9853  1.1  christos 	    struct elf_link_hash_entry *sda = NULL;
   9854  1.7  christos 
   9855  1.7  christos 	    if (sec == NULL || sec->output_section == NULL)
   9856  1.7  christos 	      {
   9857  1.1  christos 		unresolved_reloc = TRUE;
   9858  1.1  christos 		break;
   9859  1.1  christos 	      }
   9860  1.1  christos 
   9861  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   9862  1.1  christos 	    if (strcmp (name, ".sdata") == 0
   9863  1.1  christos 		|| strcmp (name, ".sbss") == 0)
   9864  1.1  christos 	      sda = htab->sdata[0].sym;
   9865  1.3  christos 	    else if (strcmp (name, ".sdata2") == 0
   9866  1.1  christos 		     || strcmp (name, ".sbss2") == 0)
   9867  1.1  christos 	      sda = htab->sdata[1].sym;
   9868  1.7  christos 	    else
   9869  1.1  christos 	      {
   9870  1.7  christos 		_bfd_error_handler
   9871  1.7  christos 		  /* xgettext:c-format */
   9872  1.1  christos 		  (_("%pB: the target (%s) of a %s relocation is "
   9873  1.7  christos 		     "in the wrong output section (%s)"),
   9874  1.3  christos 		   input_bfd,
   9875  1.3  christos 		   sym_name,
   9876  1.7  christos 		   howto->name,
   9877  1.7  christos 		   name);
   9878  1.7  christos 
   9879  1.7  christos 		bfd_set_error (bfd_error_bad_value);
   9880  1.3  christos 		ret = FALSE;
   9881  1.7  christos 		goto copy_reloc;
   9882  1.7  christos 	      }
   9883  1.7  christos 
   9884  1.7  christos 	    if (sda == NULL || !is_static_defined (sda))
   9885  1.3  christos 	      {
   9886  1.3  christos 		unresolved_reloc = TRUE;
   9887  1.3  christos 		break;
   9888  1.7  christos 	      }
   9889  1.7  christos 	    value = relocation + addend - SYM_VAL (sda);
   9890  1.7  christos 
   9891  1.7  christos 	    if (r_type == R_PPC_VLE_SDAREL_LO16A)
   9892  1.3  christos 	      ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9893  1.3  christos 				   contents + rel->r_offset, value,
   9894  1.3  christos 				   split16a_type,
   9895  1.3  christos 				   htab->params->vle_reloc_fixup);
   9896  1.7  christos 	    else if (r_type == R_PPC_VLE_SDAREL_LO16D)
   9897  1.7  christos 	      ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9898  1.7  christos 				   contents + rel->r_offset, value,
   9899  1.7  christos 				   split16d_type,
   9900  1.3  christos 				   htab->params->vle_reloc_fixup);
   9901  1.3  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HI16A)
   9902  1.3  christos 	      {
   9903  1.3  christos 		value = value >> 16;
   9904  1.7  christos 		ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9905  1.7  christos 				     contents + rel->r_offset, value,
   9906  1.7  christos 				     split16a_type,
   9907  1.7  christos 				     htab->params->vle_reloc_fixup);
   9908  1.3  christos 	      }
   9909  1.3  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HI16D)
   9910  1.3  christos 	      {
   9911  1.3  christos 		value = value >> 16;
   9912  1.7  christos 		ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9913  1.7  christos 				     contents + rel->r_offset, value,
   9914  1.7  christos 				     split16d_type,
   9915  1.7  christos 				     htab->params->vle_reloc_fixup);
   9916  1.1  christos 	      }
   9917  1.1  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HA16A)
   9918  1.3  christos 	      {
   9919  1.1  christos 		value = (value + 0x8000) >> 16;
   9920  1.7  christos 		ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9921  1.7  christos 				     contents + rel->r_offset, value,
   9922  1.7  christos 				     split16a_type,
   9923  1.7  christos 				     htab->params->vle_reloc_fixup);
   9924  1.1  christos 	      }
   9925  1.1  christos 	    else if (r_type == R_PPC_VLE_SDAREL_HA16D)
   9926  1.1  christos 	      {
   9927  1.1  christos 		value = (value + 0x8000) >> 16;
   9928  1.1  christos 		ppc_elf_vle_split16 (input_bfd, input_section, rel->r_offset,
   9929  1.1  christos 				     contents + rel->r_offset, value,
   9930  1.1  christos 				     split16d_type,
   9931  1.1  christos 				     htab->params->vle_reloc_fixup);
   9932  1.1  christos 	      }
   9933  1.1  christos 	  }
   9934  1.1  christos 	  goto copy_reloc;
   9935  1.1  christos 
   9936  1.1  christos 	case R_PPC_VLE_ADDR20:
   9937  1.1  christos 	  ppc_elf_vle_split20 (output_bfd, contents + rel->r_offset, relocation);
   9938  1.1  christos 	  continue;
   9939  1.1  christos 
   9940  1.1  christos 	  /* Relocate against the beginning of the section.  */
   9941  1.1  christos 	case R_PPC_SECTOFF:
   9942  1.1  christos 	case R_PPC_SECTOFF_LO:
   9943  1.1  christos 	case R_PPC_SECTOFF_HI:
   9944  1.1  christos 	case R_PPC_SECTOFF_HA:
   9945  1.1  christos 	  if (sec == NULL || sec->output_section == NULL)
   9946  1.1  christos 	    {
   9947  1.1  christos 	      unresolved_reloc = TRUE;
   9948  1.1  christos 	      break;
   9949  1.1  christos 	    }
   9950  1.1  christos 	  addend -= sec->output_section->vma;
   9951  1.1  christos 	  break;
   9952  1.1  christos 
   9953  1.1  christos 	  /* Negative relocations.  */
   9954  1.1  christos 	case R_PPC_EMB_NADDR32:
   9955  1.1  christos 	case R_PPC_EMB_NADDR16:
   9956  1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   9957  1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   9958  1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   9959  1.7  christos 	  addend -= 2 * relocation;
   9960  1.7  christos 	  break;
   9961  1.7  christos 
   9962  1.1  christos 	case R_PPC_COPY:
   9963  1.1  christos 	case R_PPC_GLOB_DAT:
   9964  1.1  christos 	case R_PPC_JMP_SLOT:
   9965  1.3  christos 	case R_PPC_RELATIVE:
   9966  1.1  christos 	case R_PPC_IRELATIVE:
   9967  1.1  christos 	case R_PPC_PLT32:
   9968  1.7  christos 	case R_PPC_PLTREL32:
   9969  1.7  christos 	case R_PPC_ADDR30:
   9970  1.7  christos 	case R_PPC_EMB_RELSEC16:
   9971  1.7  christos 	case R_PPC_EMB_RELST_LO:
   9972  1.7  christos 	case R_PPC_EMB_RELST_HI:
   9973  1.7  christos 	case R_PPC_EMB_RELST_HA:
   9974  1.7  christos 	case R_PPC_EMB_BIT_FLD:
   9975  1.7  christos 	  /* xgettext:c-format */
   9976  1.7  christos 	  _bfd_error_handler (_("%pB: %s unsupported"),
   9977  1.7  christos 			      input_bfd, howto->name);
   9978  1.7  christos 
   9979  1.7  christos 	  bfd_set_error (bfd_error_invalid_operation);
   9980  1.7  christos 	  ret = FALSE;
   9981  1.7  christos 	  goto copy_reloc;
   9982  1.7  christos 	}
   9983  1.7  christos 
   9984  1.7  christos       switch (r_type)
   9985  1.7  christos 	{
   9986  1.7  christos 	default:
   9987  1.7  christos 	  break;
   9988  1.7  christos 
   9989  1.7  christos 	case R_PPC_PLTCALL:
   9990  1.7  christos 	  if (unresolved_reloc)
   9991  1.7  christos 	    {
   9992  1.7  christos 	      bfd_byte *p = contents + rel->r_offset;
   9993  1.7  christos 	      unsigned int insn = bfd_get_32 (input_bfd, p);
   9994  1.7  christos 	      insn &= 1;
   9995  1.7  christos 	      bfd_put_32 (input_bfd, B | insn, p);
   9996  1.7  christos 	      unresolved_reloc = save_unresolved_reloc;
   9997  1.7  christos 	      r_type = R_PPC_REL24;
   9998  1.7  christos 	      howto = ppc_elf_howto_table[r_type];
   9999  1.7  christos 	    }
   10000  1.7  christos 	  else if (htab->plt_type != PLT_NEW)
   10001  1.7  christos 	    info->callbacks->einfo
   10002  1.7  christos 	      (_("%P: %H: %s relocation unsupported for bss-plt\n"),
   10003  1.7  christos 	       input_bfd, input_section, rel->r_offset,
   10004  1.7  christos 	       howto->name);
   10005  1.7  christos 	  break;
   10006  1.7  christos 
   10007  1.7  christos 	case R_PPC_PLTSEQ:
   10008  1.7  christos 	case R_PPC_PLT16_HA:
   10009  1.7  christos 	case R_PPC_PLT16_LO:
   10010  1.1  christos 	  if (unresolved_reloc)
   10011  1.1  christos 	    {
   10012  1.1  christos 	      bfd_byte *p = contents + (rel->r_offset & ~3);
   10013  1.1  christos 	      bfd_put_32 (input_bfd, NOP, p);
   10014  1.1  christos 	      unresolved_reloc = FALSE;
   10015  1.1  christos 	      r_type = R_PPC_NONE;
   10016  1.1  christos 	      howto = ppc_elf_howto_table[r_type];
   10017  1.1  christos 	    }
   10018  1.3  christos 	  else if (htab->plt_type != PLT_NEW)
   10019  1.1  christos 	    info->callbacks->einfo
   10020  1.1  christos 	      (_("%P: %H: %s relocation unsupported for bss-plt\n"),
   10021  1.1  christos 	       input_bfd, input_section, rel->r_offset,
   10022  1.1  christos 	       howto->name);
   10023  1.1  christos 	  break;
   10024  1.1  christos 	}
   10025  1.1  christos 
   10026  1.1  christos       /* Do any further special processing.  */
   10027  1.1  christos       switch (r_type)
   10028  1.1  christos 	{
   10029  1.1  christos 	default:
   10030  1.7  christos 	  break;
   10031  1.1  christos 
   10032  1.1  christos 	case R_PPC_ADDR16_HA:
   10033  1.1  christos 	case R_PPC_REL16_HA:
   10034  1.1  christos 	case R_PPC_REL16DX_HA:
   10035  1.1  christos 	case R_PPC_SECTOFF_HA:
   10036  1.1  christos 	case R_PPC_TPREL16_HA:
   10037  1.1  christos 	case R_PPC_DTPREL16_HA:
   10038  1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   10039  1.1  christos 	case R_PPC_EMB_RELST_HA:
   10040  1.1  christos 	  /* It's just possible that this symbol is a weak symbol
   10041  1.1  christos 	     that's not actually defined anywhere.  In that case,
   10042  1.1  christos 	     'sec' would be NULL, and we should leave the symbol
   10043  1.1  christos 	     alone (it will be set to zero elsewhere in the link).  */
   10044  1.1  christos 	  if (sec == NULL)
   10045  1.1  christos 	    break;
   10046  1.1  christos 	  /* Fall through.  */
   10047  1.1  christos 
   10048  1.1  christos 	case R_PPC_PLT16_HA:
   10049  1.1  christos 	case R_PPC_GOT16_HA:
   10050  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   10051  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   10052  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   10053  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   10054  1.1  christos 	  /* Add 0x10000 if sign bit in 0:15 is set.
   10055  1.1  christos 	     Bits 0:15 are not used.  */
   10056  1.1  christos 	  addend += 0x8000;
   10057  1.1  christos 	  break;
   10058  1.1  christos 
   10059  1.1  christos 	case R_PPC_ADDR16:
   10060  1.1  christos 	case R_PPC_ADDR16_LO:
   10061  1.1  christos 	case R_PPC_GOT16:
   10062  1.1  christos 	case R_PPC_GOT16_LO:
   10063  1.1  christos 	case R_PPC_SDAREL16:
   10064  1.1  christos 	case R_PPC_SECTOFF:
   10065  1.1  christos 	case R_PPC_SECTOFF_LO:
   10066  1.1  christos 	case R_PPC_DTPREL16:
   10067  1.1  christos 	case R_PPC_DTPREL16_LO:
   10068  1.7  christos 	case R_PPC_TPREL16:
   10069  1.3  christos 	case R_PPC_TPREL16_LO:
   10070  1.1  christos 	case R_PPC_GOT_TLSGD16:
   10071  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   10072  1.1  christos 	case R_PPC_GOT_TLSLD16:
   10073  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   10074  1.1  christos 	case R_PPC_GOT_DTPREL16:
   10075  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   10076  1.1  christos 	case R_PPC_GOT_TPREL16:
   10077  1.3  christos 	case R_PPC_GOT_TPREL16_LO:
   10078  1.3  christos 	  {
   10079  1.3  christos 	    /* The 32-bit ABI lacks proper relocations to deal with
   10080  1.1  christos 	       certain 64-bit instructions.  Prevent damage to bits
   10081  1.1  christos 	       that make up part of the insn opcode.  */
   10082  1.3  christos 	    unsigned int insn, mask, lobit;
   10083  1.1  christos 
   10084  1.7  christos 	    insn = bfd_get_32 (input_bfd,
   10085  1.7  christos 			       contents + rel->r_offset - d_offset);
   10086  1.1  christos 	    mask = 0;
   10087  1.1  christos 	    if (is_insn_ds_form (insn))
   10088  1.1  christos 	      mask = 3;
   10089  1.1  christos 	    else if (is_insn_dq_form (insn))
   10090  1.1  christos 	      mask = 15;
   10091  1.1  christos 	    else
   10092  1.1  christos 	      break;
   10093  1.1  christos 	    relocation += addend;
   10094  1.1  christos 	    addend = insn & mask;
   10095  1.1  christos 	    lobit = mask & relocation;
   10096  1.1  christos 	    if (lobit != 0)
   10097  1.1  christos 	      {
   10098  1.1  christos 		relocation ^= lobit;
   10099  1.1  christos 		info->callbacks->einfo
   10100  1.1  christos 		  /* xgettext:c-format */
   10101  1.1  christos 		  (_("%H: error: %s against `%s' not a multiple of %u\n"),
   10102  1.1  christos 		   input_bfd, input_section, rel->r_offset,
   10103  1.1  christos 		   howto->name, sym_name, mask + 1);
   10104  1.1  christos 		bfd_set_error (bfd_error_bad_value);
   10105  1.1  christos 		ret = FALSE;
   10106  1.1  christos 	      }
   10107  1.1  christos 	  }
   10108  1.1  christos 	  break;
   10109  1.1  christos 	}
   10110  1.1  christos 
   10111  1.1  christos #ifdef DEBUG
   10112  1.1  christos       fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
   10113  1.7  christos 	       "offset = %ld, addend = %ld\n",
   10114  1.7  christos 	       howto->name,
   10115  1.1  christos 	       (int) r_type,
   10116  1.1  christos 	       sym_name,
   10117  1.1  christos 	       r_symndx,
   10118  1.1  christos 	       (long) rel->r_offset,
   10119  1.1  christos 	       (long) addend);
   10120  1.1  christos #endif
   10121  1.3  christos 
   10122  1.3  christos       if (unresolved_reloc
   10123  1.3  christos 	  && !((input_section->flags & SEC_DEBUGGING) != 0
   10124  1.3  christos 	       && h->def_dynamic)
   10125  1.3  christos 	  && _bfd_elf_section_offset (output_bfd, info, input_section,
   10126  1.3  christos 				      rel->r_offset) != (bfd_vma) -1)
   10127  1.3  christos 	{
   10128  1.3  christos 	  info->callbacks->einfo
   10129  1.3  christos 	    /* xgettext:c-format */
   10130  1.3  christos 	    (_("%H: unresolvable %s relocation against symbol `%s'\n"),
   10131  1.3  christos 	     input_bfd, input_section, rel->r_offset,
   10132  1.3  christos 	     howto->name,
   10133  1.3  christos 	     sym_name);
   10134  1.3  christos 	  ret = FALSE;
   10135  1.3  christos 	}
   10136  1.3  christos 
   10137  1.3  christos       /* 16-bit fields in insns mostly have signed values, but a
   10138  1.3  christos 	 few insns have 16-bit unsigned values.  Really, we should
   10139  1.3  christos 	 have different reloc types.  */
   10140  1.3  christos       if (howto->complain_on_overflow != complain_overflow_dont
   10141  1.3  christos 	  && howto->dst_mask == 0xffff
   10142  1.3  christos 	  && (input_section->flags & SEC_CODE) != 0)
   10143  1.3  christos 	{
   10144  1.3  christos 	  enum complain_overflow complain = complain_overflow_signed;
   10145  1.3  christos 
   10146  1.3  christos 	  if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0)
   10147  1.3  christos 	    {
   10148  1.3  christos 	      unsigned int insn;
   10149  1.3  christos 
   10150  1.3  christos 	      insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
   10151  1.3  christos 	      if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
   10152  1.3  christos 		complain = complain_overflow_bitfield;
   10153  1.3  christos 	      else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */
   10154  1.3  christos 		       || (insn & (0x3f << 26)) == 24u << 26 /* ori */
   10155  1.3  christos 		       || (insn & (0x3f << 26)) == 26u << 26 /* xori */)
   10156  1.3  christos 		complain = complain_overflow_unsigned;
   10157  1.3  christos 	    }
   10158  1.3  christos 	  if (howto->complain_on_overflow != complain)
   10159  1.3  christos 	    {
   10160  1.3  christos 	      alt_howto = *howto;
   10161  1.3  christos 	      alt_howto.complain_on_overflow = complain;
   10162  1.3  christos 	      howto = &alt_howto;
   10163  1.3  christos 	    }
   10164  1.3  christos 	}
   10165  1.3  christos 
   10166  1.3  christos       if (r_type == R_PPC_REL16DX_HA)
   10167  1.3  christos 	{
   10168  1.3  christos 	  /* Split field reloc isn't handled by _bfd_final_link_relocate.  */
   10169  1.3  christos 	  if (rel->r_offset + 4 > input_section->size)
   10170  1.3  christos 	    r = bfd_reloc_outofrange;
   10171  1.3  christos 	  else
   10172  1.3  christos 	    {
   10173  1.3  christos 	      unsigned int insn;
   10174  1.1  christos 
   10175  1.1  christos 	      relocation += addend;
   10176  1.1  christos 	      relocation -= (rel->r_offset
   10177  1.1  christos 			     + input_section->output_offset
   10178  1.1  christos 			     + input_section->output_section->vma);
   10179  1.3  christos 	      relocation >>= 16;
   10180  1.3  christos 	      insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
   10181  1.3  christos 	      insn &= ~0x1fffc1;
   10182  1.3  christos 	      insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15);
   10183  1.3  christos 	      bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
   10184  1.3  christos 	      r = bfd_reloc_ok;
   10185  1.3  christos 	    }
   10186  1.3  christos 	}
   10187  1.6  christos       else
   10188  1.6  christos 	r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
   10189  1.6  christos 				      rel->r_offset, relocation, addend);
   10190  1.1  christos 
   10191  1.1  christos       if (r != bfd_reloc_ok)
   10192  1.1  christos 	{
   10193  1.1  christos 	  if (r == bfd_reloc_overflow)
   10194  1.7  christos 	    {
   10195  1.7  christos 	    overflow:
   10196  1.1  christos 	      /* On code like "if (foo) foo();" don't report overflow
   10197  1.1  christos 		 on a branch to zero when foo is undefined.  */
   10198  1.1  christos 	      if (!warned
   10199  1.1  christos 		  && !(h != NULL
   10200  1.1  christos 		       && (h->root.type == bfd_link_hash_undefweak
   10201  1.3  christos 			   || h->root.type == bfd_link_hash_undefined)
   10202  1.3  christos 		       && is_branch_reloc (r_type)))
   10203  1.3  christos 		info->callbacks->reloc_overflow
   10204  1.3  christos 		  (info, (h ? &h->root : NULL), sym_name, howto->name,
   10205  1.3  christos 		   rel->r_addend, input_bfd, input_section, rel->r_offset);
   10206  1.3  christos 	    }
   10207  1.3  christos 	  else
   10208  1.3  christos 	    {
   10209  1.3  christos 	      info->callbacks->einfo
   10210  1.3  christos 		/* xgettext:c-format */
   10211  1.3  christos 		(_("%H: %s reloc against `%s': error %d\n"),
   10212  1.3  christos 		 input_bfd, input_section, rel->r_offset,
   10213  1.3  christos 		 howto->name, sym_name, (int) r);
   10214  1.3  christos 	      ret = FALSE;
   10215  1.3  christos 	    }
   10216  1.3  christos 	}
   10217  1.3  christos     copy_reloc:
   10218  1.3  christos       if (wrel != rel)
   10219  1.3  christos 	*wrel = *rel;
   10220  1.3  christos     }
   10221  1.3  christos 
   10222  1.3  christos   if (wrel != rel)
   10223  1.3  christos     {
   10224  1.3  christos       Elf_Internal_Shdr *rel_hdr;
   10225  1.3  christos       size_t deleted = rel - wrel;
   10226  1.1  christos 
   10227  1.1  christos       rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section);
   10228  1.1  christos       rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
   10229  1.1  christos       if (rel_hdr->sh_size == 0)
   10230  1.1  christos 	{
   10231  1.1  christos 	  /* It is too late to remove an empty reloc section.  Leave
   10232  1.3  christos 	     one NONE reloc.
   10233  1.3  christos 	     ??? What is wrong with an empty section???  */
   10234  1.3  christos 	  rel_hdr->sh_size = rel_hdr->sh_entsize;
   10235  1.3  christos 	  deleted -= 1;
   10236  1.3  christos 	  wrel++;
   10237  1.3  christos 	}
   10238  1.3  christos       relend = wrel;
   10239  1.3  christos       rel_hdr = _bfd_elf_single_rel_hdr (input_section);
   10240  1.3  christos       rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted;
   10241  1.3  christos       input_section->reloc_count -= deleted;
   10242  1.3  christos     }
   10243  1.3  christos 
   10244  1.3  christos #ifdef DEBUG
   10245  1.3  christos   fprintf (stderr, "\n");
   10246  1.3  christos #endif
   10247  1.3  christos 
   10248  1.3  christos   if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET
   10249  1.3  christos       && input_section->size != input_section->rawsize
   10250  1.3  christos       && (strcmp (input_section->output_section->name, ".init") == 0
   10251  1.3  christos 	  || strcmp (input_section->output_section->name, ".fini") == 0))
   10252  1.3  christos     {
   10253  1.3  christos       /* Branch around the trampolines.  */
   10254  1.3  christos       unsigned int insn = B + input_section->size - input_section->rawsize;
   10255  1.3  christos       bfd_put_32 (input_bfd, insn, contents + input_section->rawsize);
   10256  1.3  christos     }
   10257  1.3  christos 
   10258  1.3  christos   if (htab->params->ppc476_workaround
   10259  1.3  christos       && input_section->sec_info_type == SEC_INFO_TYPE_TARGET
   10260  1.3  christos       && (!bfd_link_relocatable (info)
   10261  1.3  christos 	  || (input_section->output_section->alignment_power
   10262  1.3  christos 	      >= htab->params->pagesize_p2)))
   10263  1.3  christos     {
   10264  1.3  christos       bfd_vma start_addr, end_addr, addr;
   10265  1.3  christos       bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   10266  1.3  christos 
   10267  1.3  christos       if (relax_info->workaround_size != 0)
   10268  1.3  christos 	{
   10269  1.3  christos 	  bfd_byte *p;
   10270  1.3  christos 	  unsigned int n;
   10271  1.3  christos 	  bfd_byte fill[4];
   10272  1.3  christos 
   10273  1.3  christos 	  bfd_put_32 (input_bfd, BA, fill);
   10274  1.3  christos 	  p = contents + input_section->size - relax_info->workaround_size;
   10275  1.3  christos 	  n = relax_info->workaround_size >> 2;
   10276  1.3  christos 	  while (n--)
   10277  1.3  christos 	    {
   10278  1.3  christos 	      memcpy (p, fill, 4);
   10279  1.3  christos 	      p += 4;
   10280  1.3  christos 	    }
   10281  1.3  christos 	}
   10282  1.3  christos 
   10283  1.3  christos       /* The idea is: Replace the last instruction on a page with a
   10284  1.3  christos 	 branch to a patch area.  Put the insn there followed by a
   10285  1.3  christos 	 branch back to the next page.  Complicated a little by
   10286  1.3  christos 	 needing to handle moved conditional branches, and by not
   10287  1.3  christos 	 wanting to touch data-in-text.  */
   10288  1.3  christos 
   10289  1.3  christos       start_addr = (input_section->output_section->vma
   10290  1.3  christos 		    + input_section->output_offset);
   10291  1.3  christos       end_addr = (start_addr + input_section->size
   10292  1.3  christos 		  - relax_info->workaround_size);
   10293  1.3  christos       for (addr = ((start_addr & -pagesize) + pagesize - 4);
   10294  1.3  christos 	   addr < end_addr;
   10295  1.3  christos 	   addr += pagesize)
   10296  1.3  christos 	{
   10297  1.3  christos 	  bfd_vma offset = addr - start_addr;
   10298  1.3  christos 	  Elf_Internal_Rela *lo, *hi;
   10299  1.3  christos 	  bfd_boolean is_data;
   10300  1.3  christos 	  bfd_vma patch_off, patch_addr;
   10301  1.3  christos 	  unsigned int insn;
   10302  1.3  christos 
   10303  1.3  christos 	  /* Do we have a data reloc at this offset?  If so, leave
   10304  1.3  christos 	     the word alone.  */
   10305  1.3  christos 	  is_data = FALSE;
   10306  1.3  christos 	  lo = relocs;
   10307  1.3  christos 	  hi = relend;
   10308  1.3  christos 	  rel = NULL;
   10309  1.3  christos 	  while (lo < hi)
   10310  1.3  christos 	    {
   10311  1.3  christos 	      rel = lo + (hi - lo) / 2;
   10312  1.3  christos 	      if (rel->r_offset < offset)
   10313  1.3  christos 		lo = rel + 1;
   10314  1.3  christos 	      else if (rel->r_offset > offset + 3)
   10315  1.3  christos 		hi = rel;
   10316  1.3  christos 	      else
   10317  1.3  christos 		{
   10318  1.3  christos 		  switch (ELF32_R_TYPE (rel->r_info))
   10319  1.3  christos 		    {
   10320  1.3  christos 		    case R_PPC_ADDR32:
   10321  1.3  christos 		    case R_PPC_UADDR32:
   10322  1.3  christos 		    case R_PPC_REL32:
   10323  1.3  christos 		    case R_PPC_ADDR30:
   10324  1.3  christos 		      is_data = TRUE;
   10325  1.3  christos 		      break;
   10326  1.3  christos 		    default:
   10327  1.3  christos 		      break;
   10328  1.3  christos 		    }
   10329  1.3  christos 		  break;
   10330  1.3  christos 		}
   10331  1.3  christos 	    }
   10332  1.3  christos 	  if (is_data)
   10333  1.3  christos 	    continue;
   10334  1.3  christos 
   10335  1.3  christos 	  /* Some instructions can be left alone too.  Unconditional
   10336  1.3  christos 	     branches, except for bcctr with BO=0x14 (bctr, bctrl),
   10337  1.3  christos 	     avoid the icache failure.
   10338  1.3  christos 
   10339  1.3  christos 	     The problem occurs due to prefetch across a page boundary
   10340  1.3  christos 	     where stale instructions can be fetched from the next
   10341  1.3  christos 	     page, and the mechanism for flushing these bad
   10342  1.3  christos 	     instructions fails under certain circumstances.  The
   10343  1.3  christos 	     unconditional branches:
   10344  1.3  christos 	     1) Branch: b, bl, ba, bla,
   10345  1.3  christos 	     2) Branch Conditional: bc, bca, bcl, bcla,
   10346  1.3  christos 	     3) Branch Conditional to Link Register: bclr, bclrl,
   10347  1.3  christos 	     where (2) and (3) have BO=0x14 making them unconditional,
   10348  1.3  christos 	     prevent the bad prefetch because the prefetch itself is
   10349  1.3  christos 	     affected by these instructions.  This happens even if the
   10350  1.3  christos 	     instruction is not executed.
   10351  1.3  christos 
   10352  1.3  christos 	     A bctr example:
   10353  1.3  christos 	     .
   10354  1.3  christos 	     .	lis 9,new_page@ha
   10355  1.3  christos 	     .	addi 9,9,new_page@l
   10356  1.3  christos 	     .	mtctr 9
   10357  1.3  christos 	     .	bctr
   10358  1.3  christos 	     .	nop
   10359  1.3  christos 	     .	nop
   10360  1.3  christos 	     . new_page:
   10361  1.3  christos 	     .
   10362  1.3  christos 	     The bctr is not predicted taken due to ctr not being
   10363  1.7  christos 	     ready, so prefetch continues on past the bctr into the
   10364  1.7  christos 	     new page which might have stale instructions.  If they
   10365  1.7  christos 	     fail to be flushed, then they will be executed after the
   10366  1.3  christos 	     bctr executes.  Either of the following modifications
   10367  1.3  christos 	     prevent the bad prefetch from happening in the first
   10368  1.7  christos 	     place:
   10369  1.3  christos 	     .
   10370  1.3  christos 	     .	lis 9,new_page@ha	 lis 9,new_page@ha
   10371  1.3  christos 	     .	addi 9,9,new_page@l	 addi 9,9,new_page@l
   10372  1.3  christos 	     .	mtctr 9			 mtctr 9
   10373  1.3  christos 	     .	bctr			 bctr
   10374  1.3  christos 	     .	nop			 b somewhere_else
   10375  1.3  christos 	     .	b somewhere_else	 nop
   10376  1.3  christos 	     . new_page:		new_page:
   10377  1.3  christos 	     .  */
   10378  1.3  christos 	  insn = bfd_get_32 (input_bfd, contents + offset);
   10379  1.3  christos 	  if ((insn & (0x3f << 26)) == (18u << 26)	    /* b,bl,ba,bla */
   10380  1.3  christos 	      || ((insn & (0x3f << 26)) == (16u << 26)	    /* bc,bcl,bca,bcla*/
   10381  1.3  christos 		  && (insn & (0x14 << 21)) == (0x14 << 21)) /*	 with BO=0x14 */
   10382  1.3  christos 	      || ((insn & (0x3f << 26)) == (19u << 26)
   10383  1.3  christos 		  && (insn & (0x3ff << 1)) == (16u << 1)    /* bclr,bclrl */
   10384  1.3  christos 		  && (insn & (0x14 << 21)) == (0x14 << 21)))/*	 with BO=0x14 */
   10385  1.3  christos 	    continue;
   10386  1.3  christos 
   10387  1.3  christos 	  patch_addr = (start_addr + input_section->size
   10388  1.3  christos 			- relax_info->workaround_size);
   10389  1.3  christos 	  patch_addr = (patch_addr + 15) & -16;
   10390  1.3  christos 	  patch_off = patch_addr - start_addr;
   10391  1.3  christos 	  bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset);
   10392  1.3  christos 
   10393  1.3  christos 	  if (rel != NULL
   10394  1.3  christos 	      && rel->r_offset >= offset
   10395  1.3  christos 	      && rel->r_offset < offset + 4)
   10396  1.3  christos 	    {
   10397  1.3  christos 	      asection *sreloc;
   10398  1.3  christos 
   10399  1.3  christos 	      /* If the insn we are patching had a reloc, adjust the
   10400  1.3  christos 		 reloc r_offset so that the reloc applies to the moved
   10401  1.3  christos 		 location.  This matters for -r and --emit-relocs.  */
   10402  1.3  christos 	      if (rel + 1 != relend)
   10403  1.3  christos 		{
   10404  1.3  christos 		  Elf_Internal_Rela tmp = *rel;
   10405  1.3  christos 
   10406  1.3  christos 		  /* Keep the relocs sorted by r_offset.  */
   10407  1.3  christos 		  memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel));
   10408  1.3  christos 		  relend[-1] = tmp;
   10409  1.3  christos 		}
   10410  1.3  christos 	      relend[-1].r_offset += patch_off - offset;
   10411  1.3  christos 
   10412  1.3  christos 	      /* Adjust REL16 addends too.  */
   10413  1.3  christos 	      switch (ELF32_R_TYPE (relend[-1].r_info))
   10414  1.3  christos 		{
   10415  1.3  christos 		case R_PPC_REL16:
   10416  1.3  christos 		case R_PPC_REL16_LO:
   10417  1.3  christos 		case R_PPC_REL16_HI:
   10418  1.3  christos 		case R_PPC_REL16_HA:
   10419  1.3  christos 		  relend[-1].r_addend += patch_off - offset;
   10420  1.3  christos 		  break;
   10421  1.3  christos 		default:
   10422  1.3  christos 		  break;
   10423  1.3  christos 		}
   10424  1.3  christos 
   10425  1.3  christos 	      /* If we are building a PIE or shared library with
   10426  1.3  christos 		 non-PIC objects, perhaps we had a dynamic reloc too?
   10427  1.3  christos 		 If so, the dynamic reloc must move with the insn.  */
   10428  1.3  christos 	      sreloc = elf_section_data (input_section)->sreloc;
   10429  1.3  christos 	      if (sreloc != NULL)
   10430  1.3  christos 		{
   10431  1.3  christos 		  Elf32_External_Rela *slo, *shi, *srelend;
   10432  1.3  christos 		  bfd_vma soffset;
   10433  1.3  christos 
   10434  1.3  christos 		  slo = (Elf32_External_Rela *) sreloc->contents;
   10435  1.3  christos 		  shi = srelend = slo + sreloc->reloc_count;
   10436  1.3  christos 		  soffset = (offset + input_section->output_section->vma
   10437  1.3  christos 			     + input_section->output_offset);
   10438  1.3  christos 		  while (slo < shi)
   10439  1.3  christos 		    {
   10440  1.3  christos 		      Elf32_External_Rela *srel = slo + (shi - slo) / 2;
   10441  1.3  christos 		      bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel,
   10442  1.3  christos 						&outrel);
   10443  1.3  christos 		      if (outrel.r_offset < soffset)
   10444  1.3  christos 			slo = srel + 1;
   10445  1.3  christos 		      else if (outrel.r_offset > soffset + 3)
   10446  1.3  christos 			shi = srel;
   10447  1.3  christos 		      else
   10448  1.3  christos 			{
   10449  1.3  christos 			  if (srel + 1 != srelend)
   10450  1.3  christos 			    {
   10451  1.3  christos 			      memmove (srel, srel + 1,
   10452  1.3  christos 				       (srelend - (srel + 1)) * sizeof (*srel));
   10453  1.3  christos 			      srel = srelend - 1;
   10454  1.3  christos 			    }
   10455  1.3  christos 			  outrel.r_offset += patch_off - offset;
   10456  1.3  christos 			  bfd_elf32_swap_reloca_out (output_bfd, &outrel,
   10457  1.3  christos 						     (bfd_byte *) srel);
   10458  1.3  christos 			  break;
   10459  1.3  christos 			}
   10460  1.3  christos 		    }
   10461  1.3  christos 		}
   10462  1.3  christos 	    }
   10463  1.3  christos 	  else
   10464  1.3  christos 	    rel = NULL;
   10465  1.3  christos 
   10466  1.3  christos 	  if ((insn & (0x3f << 26)) == (16u << 26) /* bc */
   10467  1.3  christos 	      && (insn & 2) == 0 /* relative */)
   10468  1.3  christos 	    {
   10469  1.3  christos 	      bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
   10470  1.3  christos 
   10471  1.3  christos 	      delta += offset - patch_off;
   10472  1.3  christos 	      if (bfd_link_relocatable (info) && rel != NULL)
   10473  1.3  christos 		delta = 0;
   10474  1.3  christos 	      if (!bfd_link_relocatable (info) && rel != NULL)
   10475  1.3  christos 		{
   10476  1.3  christos 		  enum elf_ppc_reloc_type r_type;
   10477  1.3  christos 
   10478  1.3  christos 		  r_type = ELF32_R_TYPE (relend[-1].r_info);
   10479  1.3  christos 		  if (r_type == R_PPC_REL14_BRTAKEN)
   10480  1.3  christos 		    insn |= BRANCH_PREDICT_BIT;
   10481  1.3  christos 		  else if (r_type == R_PPC_REL14_BRNTAKEN)
   10482  1.3  christos 		    insn &= ~BRANCH_PREDICT_BIT;
   10483  1.3  christos 		  else
   10484  1.3  christos 		    BFD_ASSERT (r_type == R_PPC_REL14);
   10485  1.3  christos 
   10486  1.3  christos 		  if ((r_type == R_PPC_REL14_BRTAKEN
   10487  1.3  christos 		       || r_type == R_PPC_REL14_BRNTAKEN)
   10488  1.3  christos 		      && delta + 0x8000 < 0x10000
   10489  1.3  christos 		      && (bfd_signed_vma) delta < 0)
   10490  1.3  christos 		    insn ^= BRANCH_PREDICT_BIT;
   10491  1.3  christos 		}
   10492  1.3  christos 	      if (delta + 0x8000 < 0x10000)
   10493  1.3  christos 		{
   10494  1.3  christos 		  bfd_put_32 (input_bfd,
   10495  1.3  christos 			      (insn & ~0xfffc) | (delta & 0xfffc),
   10496  1.3  christos 			      contents + patch_off);
   10497  1.3  christos 		  patch_off += 4;
   10498  1.3  christos 		  bfd_put_32 (input_bfd,
   10499  1.3  christos 			      B | ((offset + 4 - patch_off) & 0x3fffffc),
   10500  1.3  christos 			      contents + patch_off);
   10501  1.3  christos 		  patch_off += 4;
   10502  1.3  christos 		}
   10503  1.3  christos 	      else
   10504  1.3  christos 		{
   10505  1.3  christos 		  if (rel != NULL)
   10506  1.3  christos 		    {
   10507  1.3  christos 		      unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info);
   10508  1.3  christos 
   10509  1.3  christos 		      relend[-1].r_offset += 8;
   10510  1.3  christos 		      relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24);
   10511  1.3  christos 		    }
   10512  1.3  christos 		  bfd_put_32 (input_bfd,
   10513  1.3  christos 			      (insn & ~0xfffc) | 8,
   10514  1.3  christos 			      contents + patch_off);
   10515  1.3  christos 		  patch_off += 4;
   10516  1.3  christos 		  bfd_put_32 (input_bfd,
   10517  1.3  christos 			      B | ((offset + 4 - patch_off) & 0x3fffffc),
   10518  1.3  christos 			      contents + patch_off);
   10519  1.3  christos 		  patch_off += 4;
   10520  1.3  christos 		  bfd_put_32 (input_bfd,
   10521  1.3  christos 			      B | ((delta - 8) & 0x3fffffc),
   10522  1.3  christos 			      contents + patch_off);
   10523  1.3  christos 		  patch_off += 4;
   10524  1.1  christos 		}
   10525  1.1  christos 	    }
   10526  1.1  christos 	  else
   10527  1.7  christos 	    {
   10528  1.1  christos 	      bfd_put_32 (input_bfd, insn, contents + patch_off);
   10529  1.1  christos 	      patch_off += 4;
   10530  1.7  christos 	      bfd_put_32 (input_bfd,
   10531  1.1  christos 			  B | ((offset + 4 - patch_off) & 0x3fffffc),
   10532  1.7  christos 			  contents + patch_off);
   10533  1.7  christos 	      patch_off += 4;
   10534  1.1  christos 	    }
   10535  1.1  christos 	  BFD_ASSERT (patch_off <= input_section->size);
   10536  1.1  christos 	  relax_info->workaround_size = input_section->size - patch_off;
   10537  1.1  christos 	}
   10538  1.1  christos     }
   10539  1.1  christos 
   10540  1.1  christos   return ret;
   10541  1.1  christos }
   10542  1.1  christos 
   10543  1.1  christos /* Write out the PLT relocs and entries for H.  */
   10545  1.1  christos 
   10546  1.7  christos static bfd_boolean
   10547  1.7  christos write_global_sym_plt (struct elf_link_hash_entry *h, void *inf)
   10548  1.1  christos {
   10549  1.1  christos   struct bfd_link_info *info = (struct bfd_link_info *) inf;
   10550  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   10551  1.1  christos   struct plt_entry *ent;
   10552  1.1  christos   bfd_boolean doneone;
   10553  1.1  christos 
   10554  1.1  christos   doneone = FALSE;
   10555  1.1  christos   for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   10556  1.1  christos     if (ent->plt.offset != (bfd_vma) -1)
   10557  1.1  christos       {
   10558  1.1  christos 	if (!doneone)
   10559  1.1  christos 	  {
   10560  1.1  christos 	    Elf_Internal_Rela rela;
   10561  1.1  christos 	    bfd_byte *loc;
   10562  1.1  christos 	    bfd_vma reloc_index;
   10563  1.1  christos 	    asection *plt = htab->elf.splt;
   10564  1.1  christos 	    asection *relplt = htab->elf.srelplt;
   10565  1.1  christos 
   10566  1.1  christos 	    if (htab->plt_type == PLT_NEW
   10567  1.1  christos 		|| !htab->elf.dynamic_sections_created
   10568  1.1  christos 		|| h->dynindx == -1)
   10569  1.1  christos 	      reloc_index = ent->plt.offset / 4;
   10570  1.1  christos 	    else
   10571  1.1  christos 	      {
   10572  1.1  christos 		reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
   10573  1.1  christos 			       / htab->plt_slot_size);
   10574  1.1  christos 		if (reloc_index > PLT_NUM_SINGLE_ENTRIES
   10575  1.3  christos 		    && htab->plt_type == PLT_OLD)
   10576  1.1  christos 		  reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
   10577  1.1  christos 	      }
   10578  1.1  christos 
   10579  1.3  christos 	    /* This symbol has an entry in the procedure linkage table.
   10580  1.1  christos 	       Set it up.  */
   10581  1.7  christos 	    if (htab->plt_type == PLT_VXWORKS
   10582  1.1  christos 		&& htab->elf.dynamic_sections_created
   10583  1.7  christos 		&& h->dynindx != -1)
   10584  1.7  christos 	      {
   10585  1.1  christos 		bfd_vma got_offset;
   10586  1.7  christos 		const bfd_vma *plt_entry;
   10587  1.1  christos 
   10588  1.1  christos 		/* The first three entries in .got.plt are reserved.  */
   10589  1.1  christos 		got_offset = (reloc_index + 3) * 4;
   10590  1.1  christos 
   10591  1.1  christos 		/* Use the right PLT. */
   10592  1.7  christos 		plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry
   10593  1.1  christos 			    : ppc_elf_vxworks_plt_entry;
   10594  1.7  christos 
   10595  1.7  christos 		/* Fill in the .plt on VxWorks.  */
   10596  1.1  christos 		if (bfd_link_pic (info))
   10597  1.7  christos 		  {
   10598  1.1  christos 		    bfd_put_32 (info->output_bfd,
   10599  1.1  christos 				plt_entry[0] | PPC_HA (got_offset),
   10600  1.7  christos 				plt->contents + ent->plt.offset + 0);
   10601  1.7  christos 		    bfd_put_32 (info->output_bfd,
   10602  1.7  christos 				plt_entry[1] | PPC_LO (got_offset),
   10603  1.7  christos 				plt->contents + ent->plt.offset + 4);
   10604  1.1  christos 		  }
   10605  1.1  christos 		else
   10606  1.1  christos 		  {
   10607  1.1  christos 		    bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
   10608  1.1  christos 
   10609  1.1  christos 		    bfd_put_32 (info->output_bfd,
   10610  1.1  christos 				plt_entry[0] | PPC_HA (got_loc),
   10611  1.7  christos 				plt->contents + ent->plt.offset + 0);
   10612  1.1  christos 		    bfd_put_32 (info->output_bfd,
   10613  1.7  christos 				plt_entry[1] | PPC_LO (got_loc),
   10614  1.1  christos 				plt->contents + ent->plt.offset + 4);
   10615  1.1  christos 		  }
   10616  1.1  christos 
   10617  1.1  christos 		bfd_put_32 (info->output_bfd, plt_entry[2],
   10618  1.1  christos 			    plt->contents + ent->plt.offset + 8);
   10619  1.1  christos 		bfd_put_32 (info->output_bfd, plt_entry[3],
   10620  1.7  christos 			    plt->contents + ent->plt.offset + 12);
   10621  1.1  christos 
   10622  1.1  christos 		/* This instruction is an immediate load.  The value loaded is
   10623  1.7  christos 		   the byte offset of the R_PPC_JMP_SLOT relocation from the
   10624  1.7  christos 		   start of the .rela.plt section.  The value is stored in the
   10625  1.7  christos 		   low-order 16 bits of the load instruction.  */
   10626  1.7  christos 		/* NOTE: It appears that this is now an index rather than a
   10627  1.7  christos 		   prescaled offset.  */
   10628  1.1  christos 		bfd_put_32 (info->output_bfd,
   10629  1.1  christos 			    plt_entry[4] | reloc_index,
   10630  1.1  christos 			    plt->contents + ent->plt.offset + 16);
   10631  1.1  christos 		/* This instruction is a PC-relative branch whose target is
   10632  1.7  christos 		   the start of the PLT section.  The address of this branch
   10633  1.7  christos 		   instruction is 20 bytes beyond the start of this PLT entry.
   10634  1.7  christos 		   The address is encoded in bits 6-29, inclusive.  The value
   10635  1.7  christos 		   stored is right-shifted by two bits, permitting a 26-bit
   10636  1.1  christos 		   offset.  */
   10637  1.3  christos 		bfd_put_32 (info->output_bfd,
   10638  1.1  christos 			    (plt_entry[5]
   10639  1.1  christos 			     | (-(ent->plt.offset + 20) & 0x03fffffc)),
   10640  1.1  christos 			    plt->contents + ent->plt.offset + 20);
   10641  1.1  christos 		bfd_put_32 (info->output_bfd, plt_entry[6],
   10642  1.1  christos 			    plt->contents + ent->plt.offset + 24);
   10643  1.1  christos 		bfd_put_32 (info->output_bfd, plt_entry[7],
   10644  1.1  christos 			    plt->contents + ent->plt.offset + 28);
   10645  1.1  christos 
   10646  1.7  christos 		/* Fill in the GOT entry corresponding to this PLT slot with
   10647  1.7  christos 		   the address immediately after the "bctr" instruction
   10648  1.1  christos 		   in this PLT entry.  */
   10649  1.1  christos 		bfd_put_32 (info->output_bfd, (plt->output_section->vma
   10650  1.1  christos 					       + plt->output_offset
   10651  1.1  christos 					       + ent->plt.offset + 16),
   10652  1.7  christos 			    htab->elf.sgotplt->contents + got_offset);
   10653  1.1  christos 
   10654  1.1  christos 		if (!bfd_link_pic (info))
   10655  1.1  christos 		  {
   10656  1.7  christos 		    /* Fill in a couple of entries in .rela.plt.unloaded.  */
   10657  1.7  christos 		    loc = htab->srelplt2->contents
   10658  1.1  christos 		      + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
   10659  1.1  christos 			  * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
   10660  1.1  christos 			 * sizeof (Elf32_External_Rela));
   10661  1.1  christos 
   10662  1.7  christos 		    /* Provide the @ha relocation for the first instruction.  */
   10663  1.1  christos 		    rela.r_offset = (plt->output_section->vma
   10664  1.1  christos 				     + plt->output_offset
   10665  1.1  christos 				     + ent->plt.offset + 2);
   10666  1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   10667  1.7  christos 						R_PPC_ADDR16_HA);
   10668  1.7  christos 		    rela.r_addend = got_offset;
   10669  1.1  christos 		    bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
   10670  1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   10671  1.1  christos 
   10672  1.1  christos 		    /* Provide the @l relocation for the second instruction.  */
   10673  1.7  christos 		    rela.r_offset = (plt->output_section->vma
   10674  1.1  christos 				     + plt->output_offset
   10675  1.1  christos 				     + ent->plt.offset + 6);
   10676  1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   10677  1.1  christos 						R_PPC_ADDR16_LO);
   10678  1.1  christos 		    rela.r_addend = got_offset;
   10679  1.1  christos 		    bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
   10680  1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   10681  1.7  christos 
   10682  1.7  christos 		    /* Provide a relocation for the GOT entry corresponding to this
   10683  1.1  christos 		       PLT slot.  Point it at the middle of the .plt entry.  */
   10684  1.7  christos 		    rela.r_offset = (htab->elf.sgotplt->output_section->vma
   10685  1.1  christos 				     + htab->elf.sgotplt->output_offset
   10686  1.1  christos 				     + got_offset);
   10687  1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
   10688  1.7  christos 						R_PPC_ADDR32);
   10689  1.1  christos 		    rela.r_addend = ent->plt.offset + 16;
   10690  1.1  christos 		    bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
   10691  1.7  christos 		  }
   10692  1.7  christos 
   10693  1.7  christos 		/* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
   10694  1.7  christos 		   In particular, the offset for the relocation is not the
   10695  1.7  christos 		   address of the PLT entry for this function, as specified
   10696  1.7  christos 		   by the ABI.  Instead, the offset is set to the address of
   10697  1.7  christos 		   the GOT slot for this function.  See EABI 4.4.4.1.  */
   10698  1.7  christos 		rela.r_offset = (htab->elf.sgotplt->output_section->vma
   10699  1.7  christos 				 + htab->elf.sgotplt->output_offset
   10700  1.7  christos 				 + got_offset);
   10701  1.7  christos 		rela.r_addend = 0;
   10702  1.7  christos 	      }
   10703  1.7  christos 	    else
   10704  1.7  christos 	      {
   10705  1.7  christos 		rela.r_addend = 0;
   10706  1.7  christos 		if (!htab->elf.dynamic_sections_created
   10707  1.1  christos 		    || h->dynindx == -1)
   10708  1.7  christos 		  {
   10709  1.1  christos 		    if (h->type == STT_GNU_IFUNC)
   10710  1.7  christos 		      {
   10711  1.7  christos 			plt = htab->elf.iplt;
   10712  1.1  christos 			relplt = htab->elf.irelplt;
   10713  1.1  christos 		      }
   10714  1.1  christos 		    else
   10715  1.7  christos 		      {
   10716  1.7  christos 			plt = htab->pltlocal;
   10717  1.7  christos 			relplt = bfd_link_pic (info) ? htab->relpltlocal : NULL;
   10718  1.7  christos 		      }
   10719  1.7  christos 		    if (h->def_regular
   10720  1.7  christos 			&& (h->root.type == bfd_link_hash_defined
   10721  1.7  christos 			    || h->root.type == bfd_link_hash_defweak))
   10722  1.7  christos 		      rela.r_addend = SYM_VAL (h);
   10723  1.7  christos 		  }
   10724  1.7  christos 
   10725  1.7  christos 		if (relplt == NULL)
   10726  1.7  christos 		  {
   10727  1.7  christos 		    loc = plt->contents + ent->plt.offset;
   10728  1.7  christos 		    bfd_put_32 (info->output_bfd, rela.r_addend, loc);
   10729  1.7  christos 		  }
   10730  1.7  christos 		else
   10731  1.7  christos 		  {
   10732  1.7  christos 		    rela.r_offset = (plt->output_section->vma
   10733  1.7  christos 				     + plt->output_offset
   10734  1.1  christos 				     + ent->plt.offset);
   10735  1.1  christos 
   10736  1.1  christos 		    if (htab->plt_type == PLT_OLD
   10737  1.7  christos 			|| !htab->elf.dynamic_sections_created
   10738  1.1  christos 			|| h->dynindx == -1)
   10739  1.7  christos 		      {
   10740  1.7  christos 			/* We don't need to fill in the .plt.  The ppc dynamic
   10741  1.7  christos 			   linker will fill it in.  */
   10742  1.7  christos 		      }
   10743  1.7  christos 		    else
   10744  1.7  christos 		      {
   10745  1.7  christos 			bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
   10746  1.7  christos 				       + htab->glink->output_section->vma
   10747  1.7  christos 				       + htab->glink->output_offset);
   10748  1.7  christos 			bfd_put_32 (info->output_bfd, val,
   10749  1.7  christos 				    plt->contents + ent->plt.offset);
   10750  1.7  christos 		      }
   10751  1.7  christos 		  }
   10752  1.1  christos 	      }
   10753  1.7  christos 
   10754  1.7  christos 	    if (relplt != NULL)
   10755  1.7  christos 	      {
   10756  1.7  christos 		/* Fill in the entry in the .rela.plt section.  */
   10757  1.7  christos 		if (!htab->elf.dynamic_sections_created
   10758  1.1  christos 		    || h->dynindx == -1)
   10759  1.7  christos 		  {
   10760  1.1  christos 		    if (h->type == STT_GNU_IFUNC)
   10761  1.1  christos 		      rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   10762  1.1  christos 		    else
   10763  1.1  christos 		      rela.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   10764  1.1  christos 		    loc = relplt->contents + (relplt->reloc_count++
   10765  1.1  christos 					      * sizeof (Elf32_External_Rela));
   10766  1.1  christos 		    htab->local_ifunc_resolver = 1;
   10767  1.1  christos 		  }
   10768  1.1  christos 		else
   10769  1.7  christos 		  {
   10770  1.7  christos 		    rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
   10771  1.1  christos 		    loc = relplt->contents + (reloc_index
   10772  1.1  christos 					      * sizeof (Elf32_External_Rela));
   10773  1.1  christos 		    if (h->type == STT_GNU_IFUNC && is_static_defined (h))
   10774  1.7  christos 		      htab->maybe_local_ifunc_resolver = 1;
   10775  1.7  christos 		  }
   10776  1.7  christos 		bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
   10777  1.7  christos 	      }
   10778  1.1  christos 	    doneone = TRUE;
   10779  1.1  christos 	  }
   10780  1.7  christos 
   10781  1.7  christos 	if (htab->plt_type == PLT_NEW
   10782  1.1  christos 	    || !htab->elf.dynamic_sections_created
   10783  1.3  christos 	    || h->dynindx == -1)
   10784  1.1  christos 	  {
   10785  1.1  christos 	    unsigned char *p;
   10786  1.1  christos 	    asection *plt = htab->elf.splt;
   10787  1.1  christos 
   10788  1.1  christos 	    if (!htab->elf.dynamic_sections_created
   10789  1.1  christos 		|| h->dynindx == -1)
   10790  1.7  christos 	      {
   10791  1.7  christos 		if (h->type == STT_GNU_IFUNC)
   10792  1.7  christos 		  plt = htab->elf.iplt;
   10793  1.7  christos 		else
   10794  1.7  christos 		  break;
   10795  1.7  christos 	      }
   10796  1.7  christos 
   10797  1.7  christos 	    p = (unsigned char *) htab->glink->contents + ent->glink_offset;
   10798  1.7  christos 	    write_glink_stub (h, ent, plt, p, info);
   10799  1.7  christos 
   10800  1.7  christos 	    if (!bfd_link_pic (info))
   10801  1.7  christos 	      /* We only need one non-PIC glink stub.  */
   10802  1.7  christos 	      break;
   10803  1.7  christos 	  }
   10804  1.7  christos 	else
   10805  1.7  christos 	  break;
   10806  1.7  christos       }
   10807  1.7  christos   return TRUE;
   10808  1.7  christos }
   10809  1.7  christos 
   10810  1.7  christos /* Finish up PLT handling.  */
   10811  1.7  christos 
   10812  1.7  christos bfd_boolean
   10813  1.7  christos ppc_finish_symbols (struct bfd_link_info *info)
   10814  1.7  christos {
   10815  1.7  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   10816  1.7  christos   bfd *ibfd;
   10817  1.7  christos 
   10818  1.7  christos   if (!htab)
   10819  1.7  christos     return TRUE;
   10820  1.7  christos 
   10821  1.7  christos   elf_link_hash_traverse (&htab->elf, write_global_sym_plt, info);
   10822  1.7  christos 
   10823  1.7  christos   for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
   10824  1.7  christos     {
   10825  1.7  christos       bfd_vma *local_got, *end_local_got;
   10826  1.7  christos       struct plt_entry **local_plt, **lplt, **end_local_plt;
   10827  1.7  christos       Elf_Internal_Shdr *symtab_hdr;
   10828  1.7  christos       bfd_size_type locsymcount;
   10829  1.7  christos       Elf_Internal_Sym *local_syms = NULL;
   10830  1.7  christos       struct plt_entry *ent;
   10831  1.7  christos 
   10832  1.7  christos       if (!is_ppc_elf (ibfd))
   10833  1.7  christos 	continue;
   10834  1.7  christos 
   10835  1.7  christos       local_got = elf_local_got_offsets (ibfd);
   10836  1.7  christos       if (!local_got)
   10837  1.7  christos 	continue;
   10838  1.7  christos 
   10839  1.7  christos       symtab_hdr = &elf_symtab_hdr (ibfd);
   10840  1.7  christos       locsymcount = symtab_hdr->sh_info;
   10841  1.7  christos       end_local_got = local_got + locsymcount;
   10842  1.7  christos       local_plt = (struct plt_entry **) end_local_got;
   10843  1.7  christos       end_local_plt = local_plt + locsymcount;
   10844  1.7  christos       for (lplt = local_plt; lplt < end_local_plt; ++lplt)
   10845  1.7  christos 	for (ent = *lplt; ent != NULL; ent = ent->next)
   10846  1.7  christos 	  {
   10847  1.7  christos 	    if (ent->plt.offset != (bfd_vma) -1)
   10848  1.7  christos 	      {
   10849  1.7  christos 		Elf_Internal_Sym *sym;
   10850  1.7  christos 		asection *sym_sec;
   10851  1.7  christos 		asection *plt, *relplt;
   10852  1.7  christos 		bfd_byte *loc;
   10853  1.7  christos 		bfd_vma val;
   10854  1.7  christos 		Elf_Internal_Rela rela;
   10855  1.7  christos 
   10856  1.7  christos 		if (!get_sym_h (NULL, &sym, &sym_sec, NULL, &local_syms,
   10857  1.7  christos 				lplt - local_plt, ibfd))
   10858  1.7  christos 		  {
   10859  1.7  christos 		    if (local_syms != NULL
   10860  1.7  christos 			&& symtab_hdr->contents != (unsigned char *) local_syms)
   10861  1.7  christos 		      free (local_syms);
   10862  1.7  christos 		    return FALSE;
   10863  1.7  christos 		  }
   10864  1.7  christos 
   10865  1.7  christos 		val = sym->st_value;
   10866  1.7  christos 		if (sym_sec != NULL && sym_sec->output_section != NULL)
   10867  1.7  christos 		  val += sym_sec->output_offset + sym_sec->output_section->vma;
   10868  1.7  christos 
   10869  1.7  christos 		if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
   10870  1.7  christos 		  {
   10871  1.7  christos 		    htab->local_ifunc_resolver = 1;
   10872  1.7  christos 		    plt = htab->elf.iplt;
   10873  1.7  christos 		    relplt = htab->elf.irelplt;
   10874  1.7  christos 		    rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   10875  1.7  christos 		  }
   10876  1.7  christos 		else
   10877  1.7  christos 		  {
   10878  1.7  christos 		    plt = htab->pltlocal;
   10879  1.7  christos 		    if (bfd_link_pic (info))
   10880  1.7  christos 		      {
   10881  1.7  christos 			relplt = htab->relpltlocal;
   10882  1.7  christos 			rela.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   10883  1.7  christos 		      }
   10884  1.7  christos 		    else
   10885  1.7  christos 		      {
   10886  1.7  christos 			loc = plt->contents + ent->plt.offset;
   10887  1.7  christos 			bfd_put_32 (info->output_bfd, val, loc);
   10888  1.7  christos 			continue;
   10889  1.7  christos 		      }
   10890  1.7  christos 		  }
   10891  1.7  christos 
   10892  1.7  christos 		rela.r_offset = (ent->plt.offset
   10893  1.7  christos 				 + plt->output_offset
   10894  1.7  christos 				 + plt->output_section->vma);
   10895  1.7  christos 		rela.r_addend = val;
   10896  1.7  christos 		loc = relplt->contents + (relplt->reloc_count++
   10897  1.7  christos 					  * sizeof (Elf32_External_Rela));
   10898  1.7  christos 		bfd_elf32_swap_reloca_out (info->output_bfd, &rela, loc);
   10899  1.7  christos 	      }
   10900  1.7  christos 	    if ((ent->glink_offset & 1) == 0)
   10901  1.7  christos 	      {
   10902  1.7  christos 		unsigned char *p = ((unsigned char *) htab->glink->contents
   10903  1.7  christos 				    + ent->glink_offset);
   10904  1.7  christos 
   10905  1.7  christos 		write_glink_stub (NULL, ent, htab->elf.iplt, p, info);
   10906  1.7  christos 		ent->glink_offset |= 1;
   10907  1.7  christos 	      }
   10908  1.7  christos 	  }
   10909  1.7  christos 
   10910  1.7  christos       if (local_syms != NULL
   10911  1.7  christos 	  && symtab_hdr->contents != (unsigned char *) local_syms)
   10912  1.7  christos 	{
   10913  1.7  christos 	  if (!info->keep_memory)
   10914  1.7  christos 	    free (local_syms);
   10915  1.7  christos 	  else
   10916  1.7  christos 	    symtab_hdr->contents = (unsigned char *) local_syms;
   10917  1.7  christos 	}
   10918  1.7  christos     }
   10919  1.7  christos   return TRUE;
   10920  1.7  christos }
   10921  1.7  christos 
   10922  1.7  christos /* Finish up dynamic symbol handling.  We set the contents of various
   10923  1.7  christos    dynamic sections here.  */
   10924  1.7  christos 
   10925  1.7  christos static bfd_boolean
   10926  1.7  christos ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
   10927  1.7  christos 			       struct bfd_link_info *info,
   10928  1.7  christos 			       struct elf_link_hash_entry *h,
   10929  1.7  christos 			       Elf_Internal_Sym *sym)
   10930  1.7  christos {
   10931  1.7  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   10932  1.7  christos   struct plt_entry *ent;
   10933  1.7  christos 
   10934  1.7  christos #ifdef DEBUG
   10935  1.7  christos   fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
   10936  1.7  christos 	   h->root.root.string);
   10937  1.7  christos #endif
   10938  1.7  christos 
   10939  1.7  christos   if (!h->def_regular
   10940  1.7  christos       || (h->type == STT_GNU_IFUNC && !bfd_link_pic (info)))
   10941  1.7  christos     for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   10942  1.7  christos       if (ent->plt.offset != (bfd_vma) -1)
   10943  1.7  christos 	{
   10944  1.7  christos 	  if (!h->def_regular)
   10945  1.7  christos 	    {
   10946  1.7  christos 	      /* Mark the symbol as undefined, rather than as
   10947  1.7  christos 		 defined in the .plt section.  Leave the value if
   10948  1.7  christos 		 there were any relocations where pointer equality
   10949  1.7  christos 		 matters (this is a clue for the dynamic linker, to
   10950  1.7  christos 		 make function pointer comparisons work between an
   10951  1.7  christos 		 application and shared library), otherwise set it
   10952  1.7  christos 		 to zero.  */
   10953  1.7  christos 	      sym->st_shndx = SHN_UNDEF;
   10954  1.7  christos 	      if (!h->pointer_equality_needed)
   10955  1.7  christos 		sym->st_value = 0;
   10956  1.7  christos 	      else if (!h->ref_regular_nonweak)
   10957  1.7  christos 		{
   10958  1.7  christos 		  /* This breaks function pointer comparisons, but
   10959  1.7  christos 		     that is better than breaking tests for a NULL
   10960  1.7  christos 		     function pointer.  */
   10961  1.7  christos 		  sym->st_value = 0;
   10962  1.7  christos 		}
   10963  1.7  christos 	    }
   10964  1.7  christos 	  else
   10965  1.1  christos 	    {
   10966  1.1  christos 	      /* Set the value of ifunc symbols in a non-pie
   10967  1.1  christos 		 executable to the glink entry.  This is to avoid
   10968  1.1  christos 		 text relocations.  We can't do this for ifunc in
   10969  1.1  christos 		 allocate_dynrelocs, as we do for normal dynamic
   10970  1.1  christos 		 function symbols with plt entries, because we need
   10971  1.1  christos 		 to keep the original value around for the ifunc
   10972  1.1  christos 		 relocation.  */
   10973  1.1  christos 	      sym->st_shndx
   10974  1.1  christos 		= (_bfd_elf_section_from_bfd_section
   10975  1.1  christos 		   (info->output_bfd, htab->glink->output_section));
   10976  1.1  christos 	      sym->st_value = (ent->glink_offset
   10977  1.1  christos 			       + htab->glink->output_offset
   10978  1.1  christos 			       + htab->glink->output_section->vma);
   10979  1.1  christos 	    }
   10980  1.1  christos 	  break;
   10981  1.1  christos 	}
   10982  1.7  christos 
   10983  1.7  christos   if (h->needs_copy)
   10984  1.1  christos     {
   10985  1.7  christos       asection *s;
   10986  1.1  christos       Elf_Internal_Rela rela;
   10987  1.1  christos       bfd_byte *loc;
   10988  1.1  christos 
   10989  1.1  christos       /* This symbols needs a copy reloc.  Set it up.  */
   10990  1.1  christos 
   10991  1.1  christos #ifdef DEBUG
   10992  1.1  christos       fprintf (stderr, ", copy");
   10993  1.1  christos #endif
   10994  1.1  christos 
   10995  1.1  christos       BFD_ASSERT (h->dynindx != -1);
   10996  1.1  christos 
   10997  1.1  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   10998  1.1  christos 	s = htab->relsbss;
   10999  1.1  christos       else if (h->root.u.def.section == htab->elf.sdynrelro)
   11000  1.1  christos 	s = htab->elf.sreldynrelro;
   11001  1.1  christos       else
   11002  1.1  christos 	s = htab->elf.srelbss;
   11003  1.3  christos       BFD_ASSERT (s != NULL);
   11004  1.3  christos 
   11005  1.3  christos       rela.r_offset = SYM_VAL (h);
   11006  1.1  christos       rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
   11007  1.3  christos       rela.r_addend = 0;
   11008  1.3  christos       loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
   11009  1.7  christos       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   11010  1.3  christos     }
   11011  1.3  christos 
   11012  1.1  christos #ifdef DEBUG
   11013  1.1  christos   fprintf (stderr, "\n");
   11014  1.1  christos #endif
   11015  1.1  christos 
   11016  1.1  christos   return TRUE;
   11017  1.1  christos }
   11018  1.1  christos 
   11019  1.1  christos static enum elf_reloc_type_class
   11021  1.1  christos ppc_elf_reloc_type_class (const struct bfd_link_info *info,
   11022  1.1  christos 			  const asection *rel_sec,
   11023  1.1  christos 			  const Elf_Internal_Rela *rela)
   11024  1.1  christos {
   11025  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   11026  1.1  christos 
   11027  1.1  christos   if (rel_sec == htab->elf.irelplt)
   11028  1.1  christos     return reloc_class_ifunc;
   11029  1.1  christos 
   11030  1.1  christos   switch (ELF32_R_TYPE (rela->r_info))
   11031  1.1  christos     {
   11032  1.1  christos     case R_PPC_RELATIVE:
   11033  1.1  christos       return reloc_class_relative;
   11034  1.1  christos     case R_PPC_JMP_SLOT:
   11035  1.1  christos       return reloc_class_plt;
   11036  1.1  christos     case R_PPC_COPY:
   11037  1.1  christos       return reloc_class_copy;
   11038  1.1  christos     default:
   11039  1.1  christos       return reloc_class_normal;
   11040  1.1  christos     }
   11041  1.1  christos }
   11042  1.7  christos 
   11043  1.1  christos /* Finish up the dynamic sections.  */
   11045  1.1  christos 
   11046  1.1  christos static bfd_boolean
   11047  1.1  christos ppc_elf_finish_dynamic_sections (bfd *output_bfd,
   11048  1.1  christos 				 struct bfd_link_info *info)
   11049  1.1  christos {
   11050  1.1  christos   asection *sdyn;
   11051  1.1  christos   struct ppc_elf_link_hash_table *htab;
   11052  1.1  christos   bfd_vma got;
   11053  1.7  christos   bfd *dynobj;
   11054  1.1  christos   bfd_boolean ret = TRUE;
   11055  1.1  christos 
   11056  1.1  christos #ifdef DEBUG
   11057  1.1  christos   fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
   11058  1.1  christos #endif
   11059  1.1  christos 
   11060  1.1  christos   htab = ppc_elf_hash_table (info);
   11061  1.1  christos   dynobj = htab->elf.dynobj;
   11062  1.1  christos   sdyn = bfd_get_linker_section (dynobj, ".dynamic");
   11063  1.1  christos 
   11064  1.1  christos   got = 0;
   11065  1.1  christos   if (htab->elf.hgot != NULL)
   11066  1.1  christos     got = SYM_VAL (htab->elf.hgot);
   11067  1.1  christos 
   11068  1.7  christos   if (htab->elf.dynamic_sections_created)
   11069  1.1  christos     {
   11070  1.7  christos       Elf32_External_Dyn *dyncon, *dynconend;
   11071  1.1  christos 
   11072  1.1  christos       BFD_ASSERT (htab->elf.splt != NULL && sdyn != NULL);
   11073  1.1  christos 
   11074  1.1  christos       dyncon = (Elf32_External_Dyn *) sdyn->contents;
   11075  1.7  christos       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
   11076  1.1  christos       for (; dyncon < dynconend; dyncon++)
   11077  1.1  christos 	{
   11078  1.1  christos 	  Elf_Internal_Dyn dyn;
   11079  1.7  christos 	  asection *s;
   11080  1.1  christos 
   11081  1.1  christos 	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
   11082  1.1  christos 
   11083  1.1  christos 	  switch (dyn.d_tag)
   11084  1.1  christos 	    {
   11085  1.1  christos 	    case DT_PLTGOT:
   11086  1.1  christos 	      if (htab->is_vxworks)
   11087  1.7  christos 		s = htab->elf.sgotplt;
   11088  1.7  christos 	      else
   11089  1.7  christos 		s = htab->elf.splt;
   11090  1.7  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   11091  1.7  christos 	      break;
   11092  1.7  christos 
   11093  1.7  christos 	    case DT_PLTRELSZ:
   11094  1.7  christos 	      dyn.d_un.d_val = htab->elf.srelplt->size;
   11095  1.7  christos 	      break;
   11096  1.1  christos 
   11097  1.1  christos 	    case DT_JMPREL:
   11098  1.1  christos 	      s = htab->elf.srelplt;
   11099  1.1  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   11100  1.1  christos 	      break;
   11101  1.1  christos 
   11102  1.1  christos 	    case DT_PPC_GOT:
   11103  1.1  christos 	      dyn.d_un.d_ptr = got;
   11104  1.1  christos 	      break;
   11105  1.1  christos 
   11106  1.1  christos 	    case DT_TEXTREL:
   11107  1.1  christos 	      if (htab->local_ifunc_resolver)
   11108  1.1  christos 		info->callbacks->einfo
   11109  1.7  christos 		  (_("%X%P: text relocations and GNU indirect "
   11110  1.7  christos 		     "functions will result in a segfault at runtime\n"));
   11111  1.1  christos 	      else if (htab->maybe_local_ifunc_resolver)
   11112  1.7  christos 		info->callbacks->einfo
   11113  1.7  christos 		  (_("%P: warning: text relocations and GNU indirect "
   11114  1.1  christos 		     "functions may result in a segfault at runtime\n"));
   11115  1.1  christos 	      continue;
   11116  1.1  christos 
   11117  1.1  christos 	    default:
   11118  1.1  christos 	      if (htab->is_vxworks
   11119  1.1  christos 		  && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
   11120  1.1  christos 		break;
   11121  1.1  christos 	      continue;
   11122  1.1  christos 	    }
   11123  1.1  christos 
   11124  1.1  christos 	  bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
   11125  1.1  christos 	}
   11126  1.1  christos     }
   11127  1.1  christos 
   11128  1.1  christos   if (htab->elf.sgot != NULL
   11129  1.1  christos       && htab->elf.sgot->output_section != bfd_abs_section_ptr)
   11130  1.1  christos     {
   11131  1.1  christos       if (htab->elf.hgot->root.u.def.section == htab->elf.sgot
   11132  1.1  christos 	  || htab->elf.hgot->root.u.def.section == htab->elf.sgotplt)
   11133  1.1  christos 	{
   11134  1.1  christos 	  unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
   11135  1.1  christos 
   11136  1.1  christos 	  p += htab->elf.hgot->root.u.def.value;
   11137  1.1  christos 	  if (htab->plt_type == PLT_OLD)
   11138  1.7  christos 	    {
   11139  1.7  christos 	      /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
   11140  1.7  christos 		 so that a function can easily find the address of
   11141  1.7  christos 		 _GLOBAL_OFFSET_TABLE_.  */
   11142  1.7  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
   11143  1.1  christos 			  < htab->elf.hgot->root.u.def.section->size);
   11144  1.1  christos 	      bfd_put_32 (output_bfd, 0x4e800021, p - 4);
   11145  1.1  christos 	    }
   11146  1.1  christos 
   11147  1.7  christos 	  if (sdyn != NULL)
   11148  1.1  christos 	    {
   11149  1.1  christos 	      bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
   11150  1.1  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value
   11151  1.7  christos 			  < htab->elf.hgot->root.u.def.section->size);
   11152  1.7  christos 	      bfd_put_32 (output_bfd, val, p);
   11153  1.7  christos 	    }
   11154  1.7  christos 	}
   11155  1.1  christos       else
   11156  1.7  christos 	{
   11157  1.1  christos 	  /* xgettext:c-format */
   11158  1.3  christos 	  _bfd_error_handler (_("%s not defined in linker created %pA"),
   11159  1.1  christos 			      htab->elf.hgot->root.root.string,
   11160  1.1  christos 			      (htab->elf.sgotplt != NULL
   11161  1.1  christos 			       ? htab->elf.sgotplt : htab->elf.sgot));
   11162  1.3  christos 	  bfd_set_error (bfd_error_bad_value);
   11163  1.1  christos 	  ret = FALSE;
   11164  1.1  christos 	}
   11165  1.1  christos 
   11166  1.1  christos       elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4;
   11167  1.1  christos     }
   11168  1.1  christos 
   11169  1.1  christos   /* Fill in the first entry in the VxWorks procedure linkage table.  */
   11170  1.1  christos   if (htab->is_vxworks
   11171  1.1  christos       && htab->elf.splt != NULL
   11172  1.1  christos       && htab->elf.splt->size != 0
   11173  1.1  christos       && htab->elf.splt->output_section != bfd_abs_section_ptr)
   11174  1.1  christos     {
   11175  1.1  christos       asection *splt = htab->elf.splt;
   11176  1.1  christos       /* Use the right PLT. */
   11177  1.1  christos       const bfd_vma *plt_entry = (bfd_link_pic (info)
   11178  1.1  christos 				  ? ppc_elf_vxworks_pic_plt0_entry
   11179  1.1  christos 				  : ppc_elf_vxworks_plt0_entry);
   11180  1.1  christos 
   11181  1.1  christos       if (!bfd_link_pic (info))
   11182  1.1  christos 	{
   11183  1.3  christos 	  bfd_vma got_value = SYM_VAL (htab->elf.hgot);
   11184  1.1  christos 
   11185  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
   11186  1.1  christos 		      splt->contents +  0);
   11187  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
   11188  1.1  christos 		      splt->contents +  4);
   11189  1.1  christos 	}
   11190  1.1  christos       else
   11191  1.7  christos 	{
   11192  1.7  christos 	  bfd_put_32 (output_bfd, plt_entry[0], splt->contents +  0);
   11193  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1], splt->contents +  4);
   11194  1.1  christos 	}
   11195  1.1  christos       bfd_put_32 (output_bfd, plt_entry[2], splt->contents +  8);
   11196  1.1  christos       bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
   11197  1.1  christos       bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
   11198  1.1  christos       bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
   11199  1.1  christos       bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
   11200  1.7  christos       bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
   11201  1.7  christos 
   11202  1.1  christos       if (! bfd_link_pic (info))
   11203  1.1  christos 	{
   11204  1.1  christos 	  Elf_Internal_Rela rela;
   11205  1.1  christos 	  bfd_byte *loc;
   11206  1.1  christos 
   11207  1.1  christos 	  loc = htab->srelplt2->contents;
   11208  1.1  christos 
   11209  1.1  christos 	  /* Output the @ha relocation for the first instruction.  */
   11210  1.1  christos 	  rela.r_offset = (htab->elf.splt->output_section->vma
   11211  1.1  christos 			   + htab->elf.splt->output_offset
   11212  1.1  christos 			   + 2);
   11213  1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   11214  1.1  christos 	  rela.r_addend = 0;
   11215  1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   11216  1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   11217  1.1  christos 
   11218  1.1  christos 	  /* Output the @l relocation for the second instruction.  */
   11219  1.1  christos 	  rela.r_offset = (htab->elf.splt->output_section->vma
   11220  1.1  christos 			   + htab->elf.splt->output_offset
   11221  1.1  christos 			   + 6);
   11222  1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   11223  1.1  christos 	  rela.r_addend = 0;
   11224  1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   11225  1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   11226  1.1  christos 
   11227  1.1  christos 	  /* Fix up the remaining relocations.  They may have the wrong
   11228  1.1  christos 	     symbol index for _G_O_T_ or _P_L_T_ depending on the order
   11229  1.1  christos 	     in which symbols were output.  */
   11230  1.1  christos 	  while (loc < htab->srelplt2->contents + htab->srelplt2->size)
   11231  1.1  christos 	    {
   11232  1.1  christos 	      Elf_Internal_Rela rel;
   11233  1.1  christos 
   11234  1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   11235  1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   11236  1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   11237  1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   11238  1.1  christos 
   11239  1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   11240  1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   11241  1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   11242  1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   11243  1.1  christos 
   11244  1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   11245  1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
   11246  1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   11247  1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   11248  1.1  christos 	    }
   11249  1.1  christos 	}
   11250  1.1  christos     }
   11251  1.1  christos 
   11252  1.1  christos   if (htab->glink != NULL
   11253  1.1  christos       && htab->glink->contents != NULL
   11254  1.1  christos       && htab->elf.dynamic_sections_created)
   11255  1.1  christos     {
   11256  1.1  christos       unsigned char *p;
   11257  1.1  christos       unsigned char *endp;
   11258  1.1  christos       bfd_vma res0;
   11259  1.1  christos 
   11260  1.1  christos       /*
   11261  1.1  christos        * PIC glink code is the following:
   11262  1.1  christos        *
   11263  1.1  christos        * # ith PLT code stub.
   11264  1.1  christos        *   addis 11,30,(plt+(i-1)*4-got)@ha
   11265  1.1  christos        *   lwz 11,(plt+(i-1)*4-got)@l(11)
   11266  1.1  christos        *   mtctr 11
   11267  1.1  christos        *   bctr
   11268  1.7  christos        *
   11269  1.1  christos        * # A table of branches, one for each plt entry.
   11270  1.7  christos        * # The idea is that the plt call stub loads ctr and r11 with these
   11271  1.7  christos        * # addresses, so (r11 - res_0) gives the plt index * 4.
   11272  1.1  christos        * res_0:	b PLTresolve
   11273  1.1  christos        * res_1:	b PLTresolve
   11274  1.7  christos        * .
   11275  1.1  christos        * # Some number of entries towards the end can be nops
   11276  1.7  christos        * res_n_m3: nop
   11277  1.1  christos        * res_n_m2: nop
   11278  1.1  christos        * res_n_m1:
   11279  1.1  christos        *
   11280  1.1  christos        * PLTresolve:
   11281  1.1  christos        *    addis 11,11,(1f-res_0)@ha
   11282  1.1  christos        *    mflr 0
   11283  1.1  christos        *    bcl 20,31,1f
   11284  1.1  christos        * 1: addi 11,11,(1b-res_0)@l
   11285  1.1  christos        *    mflr 12
   11286  1.1  christos        *    mtlr 0
   11287  1.1  christos        *    sub 11,11,12		# r11 = index * 4
   11288  1.1  christos        *    addis 12,12,(got+4-1b)@ha
   11289  1.1  christos        *    lwz 0,(got+4-1b)@l(12)	# got[1] address of dl_runtime_resolve
   11290  1.7  christos        *    lwz 12,(got+8-1b)@l(12)	# got[2] contains the map address
   11291  1.7  christos        *    mtctr 0
   11292  1.1  christos        *    add 0,11,11
   11293  1.1  christos        *    add 11,0,11			# r11 = index * 12 = reloc offset.
   11294  1.7  christos        *    bctr
   11295  1.7  christos        *
   11296  1.1  christos        * Non-PIC glink code is a little simpler.
   11297  1.1  christos        *
   11298  1.1  christos        * # ith PLT code stub.
   11299  1.1  christos        *   lis 11,(plt+(i-1)*4)@ha
   11300  1.1  christos        *   lwz 11,(plt+(i-1)*4)@l(11)
   11301  1.1  christos        *   mtctr 11
   11302  1.1  christos        *   bctr
   11303  1.1  christos        *
   11304  1.1  christos        * The branch table is the same, then comes
   11305  1.3  christos        *
   11306  1.1  christos        * PLTresolve:
   11307  1.1  christos        *    lis 12,(got+4)@ha
   11308  1.1  christos        *    addis 11,11,(-res_0)@ha
   11309  1.1  christos        *    lwz 0,(got+4)@l(12)		# got[1] address of dl_runtime_resolve
   11310  1.1  christos        *    addi 11,11,(-res_0)@l	# r11 = index * 4
   11311  1.1  christos        *    mtctr 0
   11312  1.1  christos        *    add 0,11,11
   11313  1.1  christos        *    lwz 12,(got+8)@l(12)	# got[2] contains the map address
   11314  1.1  christos        *    add 11,0,11			# r11 = index * 12 = reloc offset.
   11315  1.1  christos        *    bctr
   11316  1.1  christos        */
   11317  1.1  christos 
   11318  1.1  christos       /* Build the branch table, one for each plt entry (less one),
   11319  1.1  christos 	 and perhaps some padding.  */
   11320  1.3  christos       p = htab->glink->contents;
   11321  1.3  christos       p += htab->glink_pltresolve;
   11322  1.3  christos       endp = htab->glink->contents;
   11323  1.3  christos       endp += htab->glink->size - GLINK_PLTRESOLVE;
   11324  1.3  christos       while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4))
   11325  1.3  christos 	{
   11326  1.3  christos 	  bfd_put_32 (output_bfd, B + endp - p, p);
   11327  1.3  christos 	  p += 4;
   11328  1.3  christos 	}
   11329  1.3  christos       while (p < endp)
   11330  1.3  christos 	{
   11331  1.3  christos 	  bfd_put_32 (output_bfd, NOP, p);
   11332  1.3  christos 	  p += 4;
   11333  1.3  christos 	}
   11334  1.3  christos 
   11335  1.3  christos       res0 = (htab->glink_pltresolve
   11336  1.3  christos 	      + htab->glink->output_section->vma
   11337  1.3  christos 	      + htab->glink->output_offset);
   11338  1.3  christos 
   11339  1.3  christos       if (htab->params->ppc476_workaround)
   11340  1.3  christos 	{
   11341  1.3  christos 	  /* Ensure that a call stub at the end of a page doesn't
   11342  1.3  christos 	     result in prefetch over the end of the page into the
   11343  1.3  christos 	     glink branch table.  */
   11344  1.3  christos 	  bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2;
   11345  1.3  christos 	  bfd_vma page_addr;
   11346  1.3  christos 	  bfd_vma glink_start = (htab->glink->output_section->vma
   11347  1.3  christos 				 + htab->glink->output_offset);
   11348  1.3  christos 
   11349  1.3  christos 	  for (page_addr = res0 & -pagesize;
   11350  1.3  christos 	       page_addr > glink_start;
   11351  1.3  christos 	       page_addr -= pagesize)
   11352  1.3  christos 	    {
   11353  1.1  christos 	      /* We have a plt call stub that may need fixing.  */
   11354  1.7  christos 	      bfd_byte *loc;
   11355  1.3  christos 	      unsigned int insn;
   11356  1.1  christos 
   11357  1.1  christos 	      loc = htab->glink->contents + page_addr - 4 - glink_start;
   11358  1.1  christos 	      insn = bfd_get_32 (output_bfd, loc);
   11359  1.1  christos 	      if (insn == BCTR)
   11360  1.1  christos 		{
   11361  1.1  christos 		  /* By alignment, we know that there must be at least
   11362  1.1  christos 		     one other call stub before this one.  */
   11363  1.7  christos 		  insn = bfd_get_32 (output_bfd, loc - 16);
   11364  1.7  christos 		  if (insn == BCTR)
   11365  1.7  christos 		    bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc);
   11366  1.7  christos 		  else
   11367  1.7  christos 		    bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc);
   11368  1.7  christos 		}
   11369  1.7  christos 	    }
   11370  1.7  christos 	}
   11371  1.7  christos 
   11372  1.7  christos       /* Last comes the PLTresolve stub.  */
   11373  1.7  christos       endp = p + GLINK_PLTRESOLVE;
   11374  1.7  christos       if (bfd_link_pic (info))
   11375  1.7  christos 	{
   11376  1.7  christos 	  bfd_vma bcl;
   11377  1.7  christos 
   11378  1.7  christos 	  bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
   11379  1.1  christos 		 + htab->glink->output_section->vma
   11380  1.1  christos 		 + htab->glink->output_offset);
   11381  1.7  christos 
   11382  1.7  christos 	  bfd_put_32 (output_bfd, ADDIS_11_11 + PPC_HA (bcl - res0), p);
   11383  1.7  christos 	  p += 4;
   11384  1.7  christos 	  bfd_put_32 (output_bfd, MFLR_0, p);
   11385  1.1  christos 	  p += 4;
   11386  1.1  christos 	  bfd_put_32 (output_bfd, BCL_20_31, p);
   11387  1.1  christos 	  p += 4;
   11388  1.7  christos 	  bfd_put_32 (output_bfd, ADDI_11_11 + PPC_LO (bcl - res0), p);
   11389  1.7  christos 	  p += 4;
   11390  1.7  christos 	  bfd_put_32 (output_bfd, MFLR_12, p);
   11391  1.7  christos 	  p += 4;
   11392  1.1  christos 	  bfd_put_32 (output_bfd, MTLR_0, p);
   11393  1.7  christos 	  p += 4;
   11394  1.7  christos 	  bfd_put_32 (output_bfd, SUB_11_11_12, p);
   11395  1.7  christos 	  p += 4;
   11396  1.1  christos 	  bfd_put_32 (output_bfd, ADDIS_12_12 + PPC_HA (got + 4 - bcl), p);
   11397  1.1  christos 	  p += 4;
   11398  1.1  christos 	  if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
   11399  1.7  christos 	    {
   11400  1.7  christos 	      bfd_put_32 (output_bfd, LWZ_0_12 + PPC_LO (got + 4 - bcl), p);
   11401  1.7  christos 	      p += 4;
   11402  1.7  christos 	      bfd_put_32 (output_bfd, LWZ_12_12 + PPC_LO (got + 8 - bcl), p);
   11403  1.7  christos 	      p += 4;
   11404  1.7  christos 	    }
   11405  1.7  christos 	  else
   11406  1.7  christos 	    {
   11407  1.7  christos 	      bfd_put_32 (output_bfd, LWZU_0_12 + PPC_LO (got + 4 - bcl), p);
   11408  1.7  christos 	      p += 4;
   11409  1.7  christos 	      bfd_put_32 (output_bfd, LWZ_12_12 + 4, p);
   11410  1.7  christos 	      p += 4;
   11411  1.7  christos 	    }
   11412  1.7  christos 	  bfd_put_32 (output_bfd, MTCTR_0, p);
   11413  1.7  christos 	  p += 4;
   11414  1.1  christos 	  bfd_put_32 (output_bfd, ADD_0_11_11, p);
   11415  1.7  christos 	}
   11416  1.1  christos       else
   11417  1.7  christos 	{
   11418  1.7  christos 	  bfd_put_32 (output_bfd, LIS_12 + PPC_HA (got + 4), p);
   11419  1.7  christos 	  p += 4;
   11420  1.7  christos 	  bfd_put_32 (output_bfd, ADDIS_11_11 + PPC_HA (-res0), p);
   11421  1.7  christos 	  p += 4;
   11422  1.7  christos 	  if (PPC_HA (got + 4) == PPC_HA (got + 8))
   11423  1.7  christos 	    bfd_put_32 (output_bfd, LWZ_0_12 + PPC_LO (got + 4), p);
   11424  1.7  christos 	  else
   11425  1.7  christos 	    bfd_put_32 (output_bfd, LWZU_0_12 + PPC_LO (got + 4), p);
   11426  1.7  christos 	  p += 4;
   11427  1.7  christos 	  bfd_put_32 (output_bfd, ADDI_11_11 + PPC_LO (-res0), p);
   11428  1.7  christos 	  p += 4;
   11429  1.1  christos 	  bfd_put_32 (output_bfd, MTCTR_0, p);
   11430  1.7  christos 	  p += 4;
   11431  1.1  christos 	  bfd_put_32 (output_bfd, ADD_0_11_11, p);
   11432  1.1  christos 	  p += 4;
   11433  1.1  christos 	  if (PPC_HA (got + 4) == PPC_HA (got + 8))
   11434  1.1  christos 	    bfd_put_32 (output_bfd, LWZ_12_12 + PPC_LO (got + 8), p);
   11435  1.1  christos 	  else
   11436  1.1  christos 	    bfd_put_32 (output_bfd, LWZ_12_12 + 4, p);
   11437  1.1  christos 	}
   11438  1.1  christos       p += 4;
   11439  1.1  christos       bfd_put_32 (output_bfd, ADD_11_0_11, p);
   11440  1.1  christos       p += 4;
   11441  1.1  christos       bfd_put_32 (output_bfd, BCTR, p);
   11442  1.1  christos       p += 4;
   11443  1.1  christos       while (p < endp)
   11444  1.1  christos 	{
   11445  1.1  christos 	  bfd_put_32 (output_bfd,
   11446  1.1  christos 		      htab->params->ppc476_workaround ? BA : NOP, p);
   11447  1.1  christos 	  p += 4;
   11448  1.1  christos 	}
   11449  1.1  christos       BFD_ASSERT (p == endp);
   11450  1.1  christos     }
   11451  1.1  christos 
   11452  1.1  christos   if (htab->glink_eh_frame != NULL
   11453  1.1  christos       && htab->glink_eh_frame->contents != NULL)
   11454  1.1  christos     {
   11455  1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   11456  1.1  christos       bfd_vma val;
   11457  1.1  christos 
   11458  1.1  christos       p += sizeof (glink_eh_frame_cie);
   11459  1.1  christos       /* FDE length.  */
   11460  1.1  christos       p += 4;
   11461  1.1  christos       /* CIE pointer.  */
   11462  1.3  christos       p += 4;
   11463  1.1  christos       /* Offset to .glink.  */
   11464  1.3  christos       val = (htab->glink->output_section->vma
   11465  1.1  christos 	     + htab->glink->output_offset);
   11466  1.1  christos       val -= (htab->glink_eh_frame->output_section->vma
   11467  1.1  christos 	      + htab->glink_eh_frame->output_offset);
   11468  1.1  christos       val -= p - htab->glink_eh_frame->contents;
   11469  1.7  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   11470  1.3  christos 
   11471  1.7  christos       if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
   11472  1.1  christos 	  && !_bfd_elf_write_section_eh_frame (output_bfd, info,
   11473  1.1  christos 					       htab->glink_eh_frame,
   11474  1.1  christos 					       htab->glink_eh_frame->contents))
   11475  1.1  christos 	return FALSE;
   11476  1.1  christos     }
   11477  1.1  christos 
   11478  1.1  christos   return ret;
   11479  1.1  christos }
   11480  1.1  christos 
   11481  1.1  christos #define TARGET_LITTLE_SYM	powerpc_elf32_le_vec
   11483  1.7  christos #define TARGET_LITTLE_NAME	"elf32-powerpcle"
   11484  1.1  christos #define TARGET_BIG_SYM		powerpc_elf32_vec
   11485  1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc"
   11486  1.1  christos #define ELF_ARCH		bfd_arch_powerpc
   11487  1.3  christos #define ELF_TARGET_ID		PPC32_ELF_DATA
   11488  1.1  christos #define ELF_MACHINE_CODE	EM_PPC
   11489  1.1  christos #define ELF_MAXPAGESIZE		0x10000
   11490  1.1  christos #define ELF_COMMONPAGESIZE	0x1000
   11491  1.1  christos #define ELF_RELROPAGESIZE	ELF_MAXPAGESIZE
   11492  1.1  christos #define elf_info_to_howto	ppc_elf_info_to_howto
   11493  1.1  christos 
   11494  1.1  christos #ifdef  EM_CYGNUS_POWERPC
   11495  1.1  christos #define ELF_MACHINE_ALT1	EM_CYGNUS_POWERPC
   11496  1.1  christos #endif
   11497  1.1  christos 
   11498  1.1  christos #ifdef EM_PPC_OLD
   11499  1.1  christos #define ELF_MACHINE_ALT2	EM_PPC_OLD
   11500  1.1  christos #endif
   11501  1.1  christos 
   11502  1.1  christos #define elf_backend_plt_not_loaded	1
   11503  1.1  christos #define elf_backend_want_dynrelro	1
   11504  1.7  christos #define elf_backend_can_gc_sections	1
   11505  1.1  christos #define elf_backend_can_refcount	1
   11506  1.1  christos #define elf_backend_rela_normal		1
   11507  1.1  christos #define elf_backend_caches_rawsize	1
   11508  1.1  christos 
   11509  1.1  christos #define bfd_elf32_mkobject			ppc_elf_mkobject
   11510  1.1  christos #define bfd_elf32_bfd_merge_private_bfd_data	ppc_elf_merge_private_bfd_data
   11511  1.1  christos #define bfd_elf32_bfd_relax_section		ppc_elf_relax_section
   11512  1.1  christos #define bfd_elf32_bfd_reloc_type_lookup		ppc_elf_reloc_type_lookup
   11513  1.1  christos #define bfd_elf32_bfd_reloc_name_lookup		ppc_elf_reloc_name_lookup
   11514  1.7  christos #define bfd_elf32_bfd_set_private_flags		ppc_elf_set_private_flags
   11515  1.1  christos #define bfd_elf32_bfd_link_hash_table_create	ppc_elf_link_hash_table_create
   11516  1.1  christos #define bfd_elf32_get_synthetic_symtab		ppc_elf_get_synthetic_symtab
   11517  1.1  christos 
   11518  1.1  christos #define elf_backend_object_p			ppc_elf_object_p
   11519  1.1  christos #define elf_backend_gc_mark_hook		ppc_elf_gc_mark_hook
   11520  1.1  christos #define elf_backend_section_from_shdr		ppc_elf_section_from_shdr
   11521  1.1  christos #define elf_backend_relocate_section		ppc_elf_relocate_section
   11522  1.1  christos #define elf_backend_create_dynamic_sections	ppc_elf_create_dynamic_sections
   11523  1.1  christos #define elf_backend_check_relocs		ppc_elf_check_relocs
   11524  1.1  christos #define elf_backend_relocs_compatible		_bfd_elf_relocs_compatible
   11525  1.1  christos #define elf_backend_copy_indirect_symbol	ppc_elf_copy_indirect_symbol
   11526  1.1  christos #define elf_backend_adjust_dynamic_symbol	ppc_elf_adjust_dynamic_symbol
   11527  1.1  christos #define elf_backend_add_symbol_hook		ppc_elf_add_symbol_hook
   11528  1.1  christos #define elf_backend_size_dynamic_sections	ppc_elf_size_dynamic_sections
   11529  1.1  christos #define elf_backend_hash_symbol			ppc_elf_hash_symbol
   11530  1.1  christos #define elf_backend_finish_dynamic_symbol	ppc_elf_finish_dynamic_symbol
   11531  1.1  christos #define elf_backend_finish_dynamic_sections	ppc_elf_finish_dynamic_sections
   11532  1.1  christos #define elf_backend_fake_sections		ppc_elf_fake_sections
   11533  1.1  christos #define elf_backend_additional_program_headers	ppc_elf_additional_program_headers
   11534  1.1  christos #define elf_backend_modify_segment_map		ppc_elf_modify_segment_map
   11535  1.1  christos #define elf_backend_grok_prstatus		ppc_elf_grok_prstatus
   11536  1.3  christos #define elf_backend_grok_psinfo			ppc_elf_grok_psinfo
   11537  1.1  christos #define elf_backend_write_core_note		ppc_elf_write_core_note
   11538  1.1  christos #define elf_backend_reloc_type_class		ppc_elf_reloc_type_class
   11539  1.1  christos #define elf_backend_begin_write_processing	ppc_elf_begin_write_processing
   11540  1.1  christos #define elf_backend_final_write_processing	ppc_elf_final_write_processing
   11541  1.1  christos #define elf_backend_write_section		ppc_elf_write_section
   11542  1.1  christos #define elf_backend_get_sec_type_attr		ppc_elf_get_sec_type_attr
   11543  1.1  christos #define elf_backend_plt_sym_val			ppc_elf_plt_sym_val
   11544  1.1  christos #define elf_backend_action_discarded		ppc_elf_action_discarded
   11545  1.1  christos #define elf_backend_init_index_section		_bfd_elf_init_1_index_section
   11546  1.1  christos #define elf_backend_lookup_section_flags_hook	ppc_elf_lookup_section_flags
   11547  1.1  christos 
   11548  1.1  christos #include "elf32-target.h"
   11549  1.1  christos 
   11550  1.1  christos /* FreeBSD Target */
   11551  1.1  christos 
   11552  1.1  christos #undef  TARGET_LITTLE_SYM
   11553  1.1  christos #undef  TARGET_LITTLE_NAME
   11554  1.3  christos 
   11555  1.1  christos #undef  TARGET_BIG_SYM
   11556  1.1  christos #define TARGET_BIG_SYM  powerpc_elf32_fbsd_vec
   11557  1.1  christos #undef  TARGET_BIG_NAME
   11558  1.1  christos #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
   11559  1.1  christos 
   11560  1.1  christos #undef  ELF_OSABI
   11561  1.1  christos #define ELF_OSABI	ELFOSABI_FREEBSD
   11562  1.7  christos 
   11563  1.1  christos #undef  elf32_bed
   11564  1.1  christos #define elf32_bed	elf32_powerpc_fbsd_bed
   11565  1.1  christos 
   11566  1.1  christos #include "elf32-target.h"
   11567  1.1  christos 
   11568  1.1  christos /* VxWorks Target */
   11569  1.1  christos 
   11570  1.1  christos #undef TARGET_LITTLE_SYM
   11571  1.1  christos #undef TARGET_LITTLE_NAME
   11572  1.1  christos 
   11573  1.1  christos #undef TARGET_BIG_SYM
   11574  1.1  christos #define TARGET_BIG_SYM		powerpc_elf32_vxworks_vec
   11575  1.1  christos #undef TARGET_BIG_NAME
   11576  1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc-vxworks"
   11577  1.1  christos 
   11578  1.1  christos #undef  ELF_OSABI
   11579  1.1  christos 
   11580  1.1  christos /* VxWorks uses the elf default section flags for .plt.  */
   11581  1.1  christos static const struct bfd_elf_special_section *
   11582  1.1  christos ppc_elf_vxworks_get_sec_type_attr (bfd *abfd, asection *sec)
   11583  1.1  christos {
   11584  1.7  christos   if (sec->name == NULL)
   11585  1.1  christos     return NULL;
   11586  1.1  christos 
   11587  1.1  christos   if (strcmp (sec->name, ".plt") == 0)
   11588  1.1  christos     return _bfd_elf_get_sec_type_attr (abfd, sec);
   11589  1.1  christos 
   11590  1.1  christos   return ppc_elf_get_sec_type_attr (abfd, sec);
   11591  1.1  christos }
   11592  1.1  christos 
   11593  1.1  christos /* Like ppc_elf_link_hash_table_create, but overrides
   11594  1.1  christos    appropriately for VxWorks.  */
   11595  1.1  christos static struct bfd_link_hash_table *
   11596  1.1  christos ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
   11597  1.1  christos {
   11598  1.1  christos   struct bfd_link_hash_table *ret;
   11599  1.7  christos 
   11600  1.7  christos   ret = ppc_elf_link_hash_table_create (abfd);
   11601  1.1  christos   if (ret)
   11602  1.1  christos     {
   11603  1.1  christos       struct ppc_elf_link_hash_table *htab
   11604  1.7  christos 	= (struct ppc_elf_link_hash_table *)ret;
   11605  1.7  christos       htab->is_vxworks = 1;
   11606  1.1  christos       htab->plt_type = PLT_VXWORKS;
   11607  1.1  christos       htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
   11608  1.7  christos       htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
   11609  1.1  christos       htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
   11610  1.1  christos     }
   11611  1.1  christos   return ret;
   11612  1.1  christos }
   11613  1.1  christos 
   11614  1.7  christos /* Tweak magic VxWorks symbols as they are loaded.  */
   11615  1.7  christos static bfd_boolean
   11616  1.1  christos ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
   11617  1.1  christos 				 struct bfd_link_info *info,
   11618  1.1  christos 				 Elf_Internal_Sym *sym,
   11619  1.1  christos 				 const char **namep,
   11620  1.1  christos 				 flagword *flagsp,
   11621  1.1  christos 				 asection **secp,
   11622  1.1  christos 				 bfd_vma *valp)
   11623  1.1  christos {
   11624  1.1  christos   if (!elf_vxworks_add_symbol_hook (abfd, info, sym, namep, flagsp, secp,
   11625  1.1  christos 				    valp))
   11626  1.1  christos     return FALSE;
   11627  1.1  christos 
   11628  1.1  christos   return ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp);
   11629  1.1  christos }
   11630  1.1  christos 
   11631  1.1  christos static void
   11632  1.7  christos ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
   11633  1.7  christos {
   11634  1.1  christos   ppc_elf_final_write_processing (abfd, linker);
   11635  1.1  christos   elf_vxworks_final_write_processing (abfd, linker);
   11636  1.1  christos }
   11637  1.1  christos 
   11638  1.1  christos /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
   11639  1.1  christos    define it.  */
   11640  1.1  christos #undef elf_backend_want_plt_sym
   11641  1.1  christos #define elf_backend_want_plt_sym		1
   11642  1.1  christos #undef elf_backend_want_got_plt
   11643  1.1  christos #define elf_backend_want_got_plt		1
   11644  1.1  christos #undef elf_backend_got_symbol_offset
   11645  1.1  christos #define elf_backend_got_symbol_offset		0
   11646  1.1  christos #undef elf_backend_plt_not_loaded
   11647  1.1  christos #define elf_backend_plt_not_loaded		0
   11648  1.1  christos #undef elf_backend_plt_readonly
   11649  1.1  christos #define elf_backend_plt_readonly		1
   11650  1.1  christos #undef elf_backend_got_header_size
   11651  1.1  christos #define elf_backend_got_header_size		12
   11652  1.1  christos #undef elf_backend_dtrel_excludes_plt
   11653  1.1  christos #define elf_backend_dtrel_excludes_plt		1
   11654  1.1  christos 
   11655  1.1  christos #undef bfd_elf32_get_synthetic_symtab
   11656  1.1  christos 
   11657  1.1  christos #undef bfd_elf32_bfd_link_hash_table_create
   11658  1.1  christos #define bfd_elf32_bfd_link_hash_table_create \
   11659  1.1  christos   ppc_elf_vxworks_link_hash_table_create
   11660  1.1  christos #undef elf_backend_add_symbol_hook
   11661                #define elf_backend_add_symbol_hook \
   11662                  ppc_elf_vxworks_add_symbol_hook
   11663                #undef elf_backend_link_output_symbol_hook
   11664                #define elf_backend_link_output_symbol_hook \
   11665                  elf_vxworks_link_output_symbol_hook
   11666                #undef elf_backend_final_write_processing
   11667                #define elf_backend_final_write_processing \
   11668                  ppc_elf_vxworks_final_write_processing
   11669                #undef elf_backend_get_sec_type_attr
   11670                #define elf_backend_get_sec_type_attr \
   11671                  ppc_elf_vxworks_get_sec_type_attr
   11672                #undef elf_backend_emit_relocs
   11673                #define elf_backend_emit_relocs \
   11674                  elf_vxworks_emit_relocs
   11675                
   11676                #undef elf32_bed
   11677                #define elf32_bed				ppc_elf_vxworks_bed
   11678                #undef elf_backend_post_process_headers
   11679                
   11680                #include "elf32-target.h"
   11681