Home | History | Annotate | Line # | Download | only in bfd
elf32-ppc.c revision 1.1
      1  1.1  christos /* PowerPC-specific support for 32-bit ELF
      2  1.1  christos    Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
      3  1.1  christos    2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
      4  1.1  christos    Free Software Foundation, Inc.
      5  1.1  christos    Written by Ian Lance Taylor, Cygnus Support.
      6  1.1  christos 
      7  1.1  christos    This file is part of BFD, the Binary File Descriptor library.
      8  1.1  christos 
      9  1.1  christos    This program is free software; you can redistribute it and/or modify
     10  1.1  christos    it under the terms of the GNU General Public License as published by
     11  1.1  christos    the Free Software Foundation; either version 3 of the License, or
     12  1.1  christos    (at your option) any later version.
     13  1.1  christos 
     14  1.1  christos    This program is distributed in the hope that it will be useful,
     15  1.1  christos    but WITHOUT ANY WARRANTY; without even the implied warranty of
     16  1.1  christos    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17  1.1  christos    GNU General Public License for more details.
     18  1.1  christos 
     19  1.1  christos    You should have received a copy of the GNU General Public License
     20  1.1  christos    along with this program; if not, write to the
     21  1.1  christos    Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
     22  1.1  christos    Boston, MA 02110-1301, USA.  */
     23  1.1  christos 
     24  1.1  christos 
     25  1.1  christos /* This file is based on a preliminary PowerPC ELF ABI.  The
     26  1.1  christos    information may not match the final PowerPC ELF ABI.  It includes
     27  1.1  christos    suggestions from the in-progress Embedded PowerPC ABI, and that
     28  1.1  christos    information may also not match.  */
     29  1.1  christos 
     30  1.1  christos #include "sysdep.h"
     31  1.1  christos #include <stdarg.h>
     32  1.1  christos #include "bfd.h"
     33  1.1  christos #include "bfdlink.h"
     34  1.1  christos #include "libbfd.h"
     35  1.1  christos #include "elf-bfd.h"
     36  1.1  christos #include "elf/ppc.h"
     37  1.1  christos #include "elf32-ppc.h"
     38  1.1  christos #include "elf-vxworks.h"
     39  1.1  christos #include "dwarf2.h"
     40  1.1  christos #include "elf-linux-psinfo.h"
     41  1.1  christos 
     42  1.1  christos typedef enum split16_format_type
     43  1.1  christos {
     44  1.1  christos   split16a_type = 0,
     45  1.1  christos   split16d_type
     46  1.1  christos }
     47  1.1  christos split16_format_type;
     48  1.1  christos 
     49  1.1  christos /* RELA relocations are used here.  */
     50  1.1  christos 
     51  1.1  christos static bfd_reloc_status_type ppc_elf_addr16_ha_reloc
     52  1.1  christos   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
     53  1.1  christos static bfd_reloc_status_type ppc_elf_unhandled_reloc
     54  1.1  christos   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
     55  1.1  christos static void ppc_elf_vle_split16
     56  1.1  christos   (bfd *, bfd_byte *, bfd_vma, bfd_vma, split16_format_type);
     57  1.1  christos 
     58  1.1  christos /* Branch prediction bit for branch taken relocs.  */
     59  1.1  christos #define BRANCH_PREDICT_BIT 0x200000
     60  1.1  christos /* Mask to set RA in memory instructions.  */
     61  1.1  christos #define RA_REGISTER_MASK 0x001f0000
     62  1.1  christos /* Value to shift register by to insert RA.  */
     63  1.1  christos #define RA_REGISTER_SHIFT 16
     64  1.1  christos 
     65  1.1  christos /* The name of the dynamic interpreter.  This is put in the .interp
     66  1.1  christos    section.  */
     67  1.1  christos #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
     68  1.1  christos 
     69  1.1  christos /* For old-style PLT.  */
     70  1.1  christos /* The number of single-slot PLT entries (the rest use two slots).  */
     71  1.1  christos #define PLT_NUM_SINGLE_ENTRIES 8192
     72  1.1  christos 
     73  1.1  christos /* For new-style .glink and .plt.  */
     74  1.1  christos #define GLINK_PLTRESOLVE 16*4
     75  1.1  christos #define GLINK_ENTRY_SIZE 4*4
     76  1.1  christos #define TLS_GET_ADDR_GLINK_SIZE 12*4
     77  1.1  christos 
     78  1.1  christos /* VxWorks uses its own plt layout, filled in by the static linker.  */
     79  1.1  christos 
     80  1.1  christos /* The standard VxWorks PLT entry.  */
     81  1.1  christos #define VXWORKS_PLT_ENTRY_SIZE 32
     82  1.1  christos static const bfd_vma ppc_elf_vxworks_plt_entry
     83  1.1  christos     [VXWORKS_PLT_ENTRY_SIZE / 4] =
     84  1.1  christos   {
     85  1.1  christos     0x3d800000, /* lis     r12,0                 */
     86  1.1  christos     0x818c0000, /* lwz     r12,0(r12)            */
     87  1.1  christos     0x7d8903a6, /* mtctr   r12                   */
     88  1.1  christos     0x4e800420, /* bctr                          */
     89  1.1  christos     0x39600000, /* li      r11,0                 */
     90  1.1  christos     0x48000000, /* b       14 <.PLT0resolve+0x4> */
     91  1.1  christos     0x60000000, /* nop                           */
     92  1.1  christos     0x60000000, /* nop                           */
     93  1.1  christos   };
     94  1.1  christos static const bfd_vma ppc_elf_vxworks_pic_plt_entry
     95  1.1  christos     [VXWORKS_PLT_ENTRY_SIZE / 4] =
     96  1.1  christos   {
     97  1.1  christos     0x3d9e0000, /* addis r12,r30,0 */
     98  1.1  christos     0x818c0000, /* lwz	 r12,0(r12) */
     99  1.1  christos     0x7d8903a6, /* mtctr r12 */
    100  1.1  christos     0x4e800420, /* bctr */
    101  1.1  christos     0x39600000, /* li	 r11,0 */
    102  1.1  christos     0x48000000, /* b	 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */
    103  1.1  christos     0x60000000, /* nop */
    104  1.1  christos     0x60000000, /* nop */
    105  1.1  christos   };
    106  1.1  christos 
    107  1.1  christos /* The initial VxWorks PLT entry.  */
    108  1.1  christos #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32
    109  1.1  christos static const bfd_vma ppc_elf_vxworks_plt0_entry
    110  1.1  christos     [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
    111  1.1  christos   {
    112  1.1  christos     0x3d800000, /* lis     r12,0        */
    113  1.1  christos     0x398c0000, /* addi    r12,r12,0    */
    114  1.1  christos     0x800c0008, /* lwz     r0,8(r12)    */
    115  1.1  christos     0x7c0903a6, /* mtctr   r0           */
    116  1.1  christos     0x818c0004, /* lwz     r12,4(r12)   */
    117  1.1  christos     0x4e800420, /* bctr                 */
    118  1.1  christos     0x60000000, /* nop                  */
    119  1.1  christos     0x60000000, /* nop                  */
    120  1.1  christos   };
    121  1.1  christos static const bfd_vma ppc_elf_vxworks_pic_plt0_entry
    122  1.1  christos     [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] =
    123  1.1  christos   {
    124  1.1  christos     0x819e0008, /* lwz	 r12,8(r30) */
    125  1.1  christos     0x7d8903a6, /* mtctr r12        */
    126  1.1  christos     0x819e0004, /* lwz	 r12,4(r30) */
    127  1.1  christos     0x4e800420, /* bctr             */
    128  1.1  christos     0x60000000, /* nop              */
    129  1.1  christos     0x60000000, /* nop              */
    130  1.1  christos     0x60000000, /* nop              */
    131  1.1  christos     0x60000000, /* nop              */
    132  1.1  christos   };
    133  1.1  christos 
    134  1.1  christos /* For executables, we have some additional relocations in
    135  1.1  christos    .rela.plt.unloaded, for the kernel loader.  */
    136  1.1  christos 
    137  1.1  christos /* The number of non-JMP_SLOT relocations per PLT0 slot. */
    138  1.1  christos #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3
    139  1.1  christos /* The number of relocations in the PLTResolve slot. */
    140  1.1  christos #define VXWORKS_PLTRESOLVE_RELOCS 2
    141  1.1  christos /* The number of relocations in the PLTResolve slot when when creating
    142  1.1  christos    a shared library. */
    143  1.1  christos #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0
    144  1.1  christos 
    145  1.1  christos /* Some instructions.  */
    146  1.1  christos #define ADDIS_11_11	0x3d6b0000
    147  1.1  christos #define ADDIS_11_30	0x3d7e0000
    148  1.1  christos #define ADDIS_12_12	0x3d8c0000
    149  1.1  christos #define ADDI_11_11	0x396b0000
    150  1.1  christos #define ADD_0_11_11	0x7c0b5a14
    151  1.1  christos #define ADD_3_12_2	0x7c6c1214
    152  1.1  christos #define ADD_11_0_11	0x7d605a14
    153  1.1  christos #define B		0x48000000
    154  1.1  christos #define BCL_20_31	0x429f0005
    155  1.1  christos #define BCTR		0x4e800420
    156  1.1  christos #define BEQLR		0x4d820020
    157  1.1  christos #define CMPWI_11_0	0x2c0b0000
    158  1.1  christos #define LIS_11		0x3d600000
    159  1.1  christos #define LIS_12		0x3d800000
    160  1.1  christos #define LWZU_0_12	0x840c0000
    161  1.1  christos #define LWZ_0_12	0x800c0000
    162  1.1  christos #define LWZ_11_3	0x81630000
    163  1.1  christos #define LWZ_11_11	0x816b0000
    164  1.1  christos #define LWZ_11_30	0x817e0000
    165  1.1  christos #define LWZ_12_3	0x81830000
    166  1.1  christos #define LWZ_12_12	0x818c0000
    167  1.1  christos #define MR_0_3		0x7c601b78
    168  1.1  christos #define MR_3_0		0x7c030378
    169  1.1  christos #define MFLR_0		0x7c0802a6
    170  1.1  christos #define MFLR_12		0x7d8802a6
    171  1.1  christos #define MTCTR_0		0x7c0903a6
    172  1.1  christos #define MTCTR_11	0x7d6903a6
    173  1.1  christos #define MTLR_0		0x7c0803a6
    174  1.1  christos #define NOP		0x60000000
    175  1.1  christos #define SUB_11_11_12	0x7d6c5850
    176  1.1  christos 
    177  1.1  christos /* Offset of tp and dtp pointers from start of TLS block.  */
    178  1.1  christos #define TP_OFFSET	0x7000
    179  1.1  christos #define DTP_OFFSET	0x8000
    180  1.1  christos 
    181  1.1  christos /* The value of a defined global symbol.  */
    182  1.1  christos #define SYM_VAL(SYM) \
    183  1.1  christos   ((SYM)->root.u.def.section->output_section->vma	\
    184  1.1  christos    + (SYM)->root.u.def.section->output_offset		\
    185  1.1  christos    + (SYM)->root.u.def.value)
    186  1.1  christos 
    187  1.1  christos static reloc_howto_type *ppc_elf_howto_table[R_PPC_max];
    189  1.1  christos 
    190  1.1  christos static reloc_howto_type ppc_elf_howto_raw[] = {
    191  1.1  christos   /* This reloc does nothing.  */
    192  1.1  christos   HOWTO (R_PPC_NONE,		/* type */
    193  1.1  christos 	 0,			/* rightshift */
    194  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    195  1.1  christos 	 32,			/* bitsize */
    196  1.1  christos 	 FALSE,			/* pc_relative */
    197  1.1  christos 	 0,			/* bitpos */
    198  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    199  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    200  1.1  christos 	 "R_PPC_NONE",		/* name */
    201  1.1  christos 	 FALSE,			/* partial_inplace */
    202  1.1  christos 	 0,			/* src_mask */
    203  1.1  christos 	 0,			/* dst_mask */
    204  1.1  christos 	 FALSE),		/* pcrel_offset */
    205  1.1  christos 
    206  1.1  christos   /* A standard 32 bit relocation.  */
    207  1.1  christos   HOWTO (R_PPC_ADDR32,		/* type */
    208  1.1  christos 	 0,			/* rightshift */
    209  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    210  1.1  christos 	 32,			/* bitsize */
    211  1.1  christos 	 FALSE,			/* pc_relative */
    212  1.1  christos 	 0,			/* bitpos */
    213  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    214  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    215  1.1  christos 	 "R_PPC_ADDR32",	/* name */
    216  1.1  christos 	 FALSE,			/* partial_inplace */
    217  1.1  christos 	 0,			/* src_mask */
    218  1.1  christos 	 0xffffffff,		/* dst_mask */
    219  1.1  christos 	 FALSE),		/* pcrel_offset */
    220  1.1  christos 
    221  1.1  christos   /* An absolute 26 bit branch; the lower two bits must be zero.
    222  1.1  christos      FIXME: we don't check that, we just clear them.  */
    223  1.1  christos   HOWTO (R_PPC_ADDR24,		/* type */
    224  1.1  christos 	 0,			/* rightshift */
    225  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    226  1.1  christos 	 26,			/* bitsize */
    227  1.1  christos 	 FALSE,			/* pc_relative */
    228  1.1  christos 	 0,			/* bitpos */
    229  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    230  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    231  1.1  christos 	 "R_PPC_ADDR24",	/* name */
    232  1.1  christos 	 FALSE,			/* partial_inplace */
    233  1.1  christos 	 0,			/* src_mask */
    234  1.1  christos 	 0x3fffffc,		/* dst_mask */
    235  1.1  christos 	 FALSE),		/* pcrel_offset */
    236  1.1  christos 
    237  1.1  christos   /* A standard 16 bit relocation.  */
    238  1.1  christos   HOWTO (R_PPC_ADDR16,		/* type */
    239  1.1  christos 	 0,			/* rightshift */
    240  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    241  1.1  christos 	 16,			/* bitsize */
    242  1.1  christos 	 FALSE,			/* pc_relative */
    243  1.1  christos 	 0,			/* bitpos */
    244  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    245  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    246  1.1  christos 	 "R_PPC_ADDR16",	/* name */
    247  1.1  christos 	 FALSE,			/* partial_inplace */
    248  1.1  christos 	 0,			/* src_mask */
    249  1.1  christos 	 0xffff,		/* dst_mask */
    250  1.1  christos 	 FALSE),		/* pcrel_offset */
    251  1.1  christos 
    252  1.1  christos   /* A 16 bit relocation without overflow.  */
    253  1.1  christos   HOWTO (R_PPC_ADDR16_LO,	/* type */
    254  1.1  christos 	 0,			/* rightshift */
    255  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    256  1.1  christos 	 16,			/* bitsize */
    257  1.1  christos 	 FALSE,			/* pc_relative */
    258  1.1  christos 	 0,			/* bitpos */
    259  1.1  christos 	 complain_overflow_dont,/* complain_on_overflow */
    260  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    261  1.1  christos 	 "R_PPC_ADDR16_LO",	/* name */
    262  1.1  christos 	 FALSE,			/* partial_inplace */
    263  1.1  christos 	 0,			/* src_mask */
    264  1.1  christos 	 0xffff,		/* dst_mask */
    265  1.1  christos 	 FALSE),		/* pcrel_offset */
    266  1.1  christos 
    267  1.1  christos   /* The high order 16 bits of an address.  */
    268  1.1  christos   HOWTO (R_PPC_ADDR16_HI,	/* type */
    269  1.1  christos 	 16,			/* rightshift */
    270  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    271  1.1  christos 	 16,			/* bitsize */
    272  1.1  christos 	 FALSE,			/* pc_relative */
    273  1.1  christos 	 0,			/* bitpos */
    274  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    275  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    276  1.1  christos 	 "R_PPC_ADDR16_HI",	/* name */
    277  1.1  christos 	 FALSE,			/* partial_inplace */
    278  1.1  christos 	 0,			/* src_mask */
    279  1.1  christos 	 0xffff,		/* dst_mask */
    280  1.1  christos 	 FALSE),		/* pcrel_offset */
    281  1.1  christos 
    282  1.1  christos   /* The high order 16 bits of an address, plus 1 if the contents of
    283  1.1  christos      the low 16 bits, treated as a signed number, is negative.  */
    284  1.1  christos   HOWTO (R_PPC_ADDR16_HA,	/* type */
    285  1.1  christos 	 16,			/* rightshift */
    286  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    287  1.1  christos 	 16,			/* bitsize */
    288  1.1  christos 	 FALSE,			/* pc_relative */
    289  1.1  christos 	 0,			/* bitpos */
    290  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    291  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
    292  1.1  christos 	 "R_PPC_ADDR16_HA",	/* name */
    293  1.1  christos 	 FALSE,			/* partial_inplace */
    294  1.1  christos 	 0,			/* src_mask */
    295  1.1  christos 	 0xffff,		/* dst_mask */
    296  1.1  christos 	 FALSE),		/* pcrel_offset */
    297  1.1  christos 
    298  1.1  christos   /* An absolute 16 bit branch; the lower two bits must be zero.
    299  1.1  christos      FIXME: we don't check that, we just clear them.  */
    300  1.1  christos   HOWTO (R_PPC_ADDR14,		/* type */
    301  1.1  christos 	 0,			/* rightshift */
    302  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    303  1.1  christos 	 16,			/* bitsize */
    304  1.1  christos 	 FALSE,			/* pc_relative */
    305  1.1  christos 	 0,			/* bitpos */
    306  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    307  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    308  1.1  christos 	 "R_PPC_ADDR14",	/* name */
    309  1.1  christos 	 FALSE,			/* partial_inplace */
    310  1.1  christos 	 0,			/* src_mask */
    311  1.1  christos 	 0xfffc,		/* dst_mask */
    312  1.1  christos 	 FALSE),		/* pcrel_offset */
    313  1.1  christos 
    314  1.1  christos   /* An absolute 16 bit branch, for which bit 10 should be set to
    315  1.1  christos      indicate that the branch is expected to be taken.	The lower two
    316  1.1  christos      bits must be zero.  */
    317  1.1  christos   HOWTO (R_PPC_ADDR14_BRTAKEN,	/* type */
    318  1.1  christos 	 0,			/* rightshift */
    319  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    320  1.1  christos 	 16,			/* bitsize */
    321  1.1  christos 	 FALSE,			/* pc_relative */
    322  1.1  christos 	 0,			/* bitpos */
    323  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    324  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    325  1.1  christos 	 "R_PPC_ADDR14_BRTAKEN",/* name */
    326  1.1  christos 	 FALSE,			/* partial_inplace */
    327  1.1  christos 	 0,			/* src_mask */
    328  1.1  christos 	 0xfffc,		/* dst_mask */
    329  1.1  christos 	 FALSE),		/* pcrel_offset */
    330  1.1  christos 
    331  1.1  christos   /* An absolute 16 bit branch, for which bit 10 should be set to
    332  1.1  christos      indicate that the branch is not expected to be taken.  The lower
    333  1.1  christos      two bits must be zero.  */
    334  1.1  christos   HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */
    335  1.1  christos 	 0,			/* rightshift */
    336  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    337  1.1  christos 	 16,			/* bitsize */
    338  1.1  christos 	 FALSE,			/* pc_relative */
    339  1.1  christos 	 0,			/* bitpos */
    340  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    341  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    342  1.1  christos 	 "R_PPC_ADDR14_BRNTAKEN",/* name */
    343  1.1  christos 	 FALSE,			/* partial_inplace */
    344  1.1  christos 	 0,			/* src_mask */
    345  1.1  christos 	 0xfffc,		/* dst_mask */
    346  1.1  christos 	 FALSE),		/* pcrel_offset */
    347  1.1  christos 
    348  1.1  christos   /* A relative 26 bit branch; the lower two bits must be zero.  */
    349  1.1  christos   HOWTO (R_PPC_REL24,		/* type */
    350  1.1  christos 	 0,			/* rightshift */
    351  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    352  1.1  christos 	 26,			/* bitsize */
    353  1.1  christos 	 TRUE,			/* pc_relative */
    354  1.1  christos 	 0,			/* bitpos */
    355  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    356  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    357  1.1  christos 	 "R_PPC_REL24",		/* name */
    358  1.1  christos 	 FALSE,			/* partial_inplace */
    359  1.1  christos 	 0,			/* src_mask */
    360  1.1  christos 	 0x3fffffc,		/* dst_mask */
    361  1.1  christos 	 TRUE),			/* pcrel_offset */
    362  1.1  christos 
    363  1.1  christos   /* A relative 16 bit branch; the lower two bits must be zero.  */
    364  1.1  christos   HOWTO (R_PPC_REL14,		/* type */
    365  1.1  christos 	 0,			/* rightshift */
    366  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    367  1.1  christos 	 16,			/* bitsize */
    368  1.1  christos 	 TRUE,			/* pc_relative */
    369  1.1  christos 	 0,			/* bitpos */
    370  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    371  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    372  1.1  christos 	 "R_PPC_REL14",		/* name */
    373  1.1  christos 	 FALSE,			/* partial_inplace */
    374  1.1  christos 	 0,			/* src_mask */
    375  1.1  christos 	 0xfffc,		/* dst_mask */
    376  1.1  christos 	 TRUE),			/* pcrel_offset */
    377  1.1  christos 
    378  1.1  christos   /* A relative 16 bit branch.  Bit 10 should be set to indicate that
    379  1.1  christos      the branch is expected to be taken.  The lower two bits must be
    380  1.1  christos      zero.  */
    381  1.1  christos   HOWTO (R_PPC_REL14_BRTAKEN,	/* type */
    382  1.1  christos 	 0,			/* rightshift */
    383  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    384  1.1  christos 	 16,			/* bitsize */
    385  1.1  christos 	 TRUE,			/* pc_relative */
    386  1.1  christos 	 0,			/* bitpos */
    387  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    388  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    389  1.1  christos 	 "R_PPC_REL14_BRTAKEN",	/* name */
    390  1.1  christos 	 FALSE,			/* partial_inplace */
    391  1.1  christos 	 0,			/* src_mask */
    392  1.1  christos 	 0xfffc,		/* dst_mask */
    393  1.1  christos 	 TRUE),			/* pcrel_offset */
    394  1.1  christos 
    395  1.1  christos   /* A relative 16 bit branch.  Bit 10 should be set to indicate that
    396  1.1  christos      the branch is not expected to be taken.  The lower two bits must
    397  1.1  christos      be zero.  */
    398  1.1  christos   HOWTO (R_PPC_REL14_BRNTAKEN,	/* type */
    399  1.1  christos 	 0,			/* rightshift */
    400  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    401  1.1  christos 	 16,			/* bitsize */
    402  1.1  christos 	 TRUE,			/* pc_relative */
    403  1.1  christos 	 0,			/* bitpos */
    404  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    405  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    406  1.1  christos 	 "R_PPC_REL14_BRNTAKEN",/* name */
    407  1.1  christos 	 FALSE,			/* partial_inplace */
    408  1.1  christos 	 0,			/* src_mask */
    409  1.1  christos 	 0xfffc,		/* dst_mask */
    410  1.1  christos 	 TRUE),			/* pcrel_offset */
    411  1.1  christos 
    412  1.1  christos   /* Like R_PPC_ADDR16, but referring to the GOT table entry for the
    413  1.1  christos      symbol.  */
    414  1.1  christos   HOWTO (R_PPC_GOT16,		/* type */
    415  1.1  christos 	 0,			/* rightshift */
    416  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    417  1.1  christos 	 16,			/* bitsize */
    418  1.1  christos 	 FALSE,			/* pc_relative */
    419  1.1  christos 	 0,			/* bitpos */
    420  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    421  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    422  1.1  christos 	 "R_PPC_GOT16",		/* name */
    423  1.1  christos 	 FALSE,			/* partial_inplace */
    424  1.1  christos 	 0,			/* src_mask */
    425  1.1  christos 	 0xffff,		/* dst_mask */
    426  1.1  christos 	 FALSE),		/* pcrel_offset */
    427  1.1  christos 
    428  1.1  christos   /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for
    429  1.1  christos      the symbol.  */
    430  1.1  christos   HOWTO (R_PPC_GOT16_LO,	/* type */
    431  1.1  christos 	 0,			/* rightshift */
    432  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    433  1.1  christos 	 16,			/* bitsize */
    434  1.1  christos 	 FALSE,			/* pc_relative */
    435  1.1  christos 	 0,			/* bitpos */
    436  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    437  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    438  1.1  christos 	 "R_PPC_GOT16_LO",	/* name */
    439  1.1  christos 	 FALSE,			/* partial_inplace */
    440  1.1  christos 	 0,			/* src_mask */
    441  1.1  christos 	 0xffff,		/* dst_mask */
    442  1.1  christos 	 FALSE),		/* pcrel_offset */
    443  1.1  christos 
    444  1.1  christos   /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for
    445  1.1  christos      the symbol.  */
    446  1.1  christos   HOWTO (R_PPC_GOT16_HI,	/* type */
    447  1.1  christos 	 16,			/* rightshift */
    448  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    449  1.1  christos 	 16,			/* bitsize */
    450  1.1  christos 	 FALSE,			/* pc_relative */
    451  1.1  christos 	 0,			/* bitpos */
    452  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    453  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    454  1.1  christos 	 "R_PPC_GOT16_HI",	/* name */
    455  1.1  christos 	 FALSE,			/* partial_inplace */
    456  1.1  christos 	 0,			/* src_mask */
    457  1.1  christos 	 0xffff,		/* dst_mask */
    458  1.1  christos 	 FALSE),		 /* pcrel_offset */
    459  1.1  christos 
    460  1.1  christos   /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for
    461  1.1  christos      the symbol.  */
    462  1.1  christos   HOWTO (R_PPC_GOT16_HA,	/* type */
    463  1.1  christos 	 16,			/* rightshift */
    464  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    465  1.1  christos 	 16,			/* bitsize */
    466  1.1  christos 	 FALSE,			/* pc_relative */
    467  1.1  christos 	 0,			/* bitpos */
    468  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    469  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
    470  1.1  christos 	 "R_PPC_GOT16_HA",	/* name */
    471  1.1  christos 	 FALSE,			/* partial_inplace */
    472  1.1  christos 	 0,			/* src_mask */
    473  1.1  christos 	 0xffff,		/* dst_mask */
    474  1.1  christos 	 FALSE),		/* pcrel_offset */
    475  1.1  christos 
    476  1.1  christos   /* Like R_PPC_REL24, but referring to the procedure linkage table
    477  1.1  christos      entry for the symbol.  */
    478  1.1  christos   HOWTO (R_PPC_PLTREL24,	/* type */
    479  1.1  christos 	 0,			/* rightshift */
    480  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    481  1.1  christos 	 26,			/* bitsize */
    482  1.1  christos 	 TRUE,			/* pc_relative */
    483  1.1  christos 	 0,			/* bitpos */
    484  1.1  christos 	 complain_overflow_signed,  /* complain_on_overflow */
    485  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    486  1.1  christos 	 "R_PPC_PLTREL24",	/* name */
    487  1.1  christos 	 FALSE,			/* partial_inplace */
    488  1.1  christos 	 0,			/* src_mask */
    489  1.1  christos 	 0x3fffffc,		/* dst_mask */
    490  1.1  christos 	 TRUE),			/* pcrel_offset */
    491  1.1  christos 
    492  1.1  christos   /* This is used only by the dynamic linker.  The symbol should exist
    493  1.1  christos      both in the object being run and in some shared library.  The
    494  1.1  christos      dynamic linker copies the data addressed by the symbol from the
    495  1.1  christos      shared library into the object, because the object being
    496  1.1  christos      run has to have the data at some particular address.  */
    497  1.1  christos   HOWTO (R_PPC_COPY,		/* type */
    498  1.1  christos 	 0,			/* rightshift */
    499  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    500  1.1  christos 	 32,			/* bitsize */
    501  1.1  christos 	 FALSE,			/* pc_relative */
    502  1.1  christos 	 0,			/* bitpos */
    503  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    504  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
    505  1.1  christos 	 "R_PPC_COPY",		/* name */
    506  1.1  christos 	 FALSE,			/* partial_inplace */
    507  1.1  christos 	 0,			/* src_mask */
    508  1.1  christos 	 0,			/* dst_mask */
    509  1.1  christos 	 FALSE),		/* pcrel_offset */
    510  1.1  christos 
    511  1.1  christos   /* Like R_PPC_ADDR32, but used when setting global offset table
    512  1.1  christos      entries.  */
    513  1.1  christos   HOWTO (R_PPC_GLOB_DAT,	/* type */
    514  1.1  christos 	 0,			/* rightshift */
    515  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    516  1.1  christos 	 32,			/* bitsize */
    517  1.1  christos 	 FALSE,			/* pc_relative */
    518  1.1  christos 	 0,			/* bitpos */
    519  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    520  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
    521  1.1  christos 	 "R_PPC_GLOB_DAT",	/* name */
    522  1.1  christos 	 FALSE,			/* partial_inplace */
    523  1.1  christos 	 0,			/* src_mask */
    524  1.1  christos 	 0xffffffff,		/* dst_mask */
    525  1.1  christos 	 FALSE),		/* pcrel_offset */
    526  1.1  christos 
    527  1.1  christos   /* Marks a procedure linkage table entry for a symbol.  */
    528  1.1  christos   HOWTO (R_PPC_JMP_SLOT,	/* type */
    529  1.1  christos 	 0,			/* rightshift */
    530  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    531  1.1  christos 	 32,			/* bitsize */
    532  1.1  christos 	 FALSE,			/* pc_relative */
    533  1.1  christos 	 0,			/* bitpos */
    534  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    535  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
    536  1.1  christos 	 "R_PPC_JMP_SLOT",	/* name */
    537  1.1  christos 	 FALSE,			/* partial_inplace */
    538  1.1  christos 	 0,			/* src_mask */
    539  1.1  christos 	 0,			/* dst_mask */
    540  1.1  christos 	 FALSE),		/* pcrel_offset */
    541  1.1  christos 
    542  1.1  christos   /* Used only by the dynamic linker.  When the object is run, this
    543  1.1  christos      longword is set to the load address of the object, plus the
    544  1.1  christos      addend.  */
    545  1.1  christos   HOWTO (R_PPC_RELATIVE,	/* type */
    546  1.1  christos 	 0,			/* rightshift */
    547  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    548  1.1  christos 	 32,			/* bitsize */
    549  1.1  christos 	 FALSE,			/* pc_relative */
    550  1.1  christos 	 0,			/* bitpos */
    551  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    552  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
    553  1.1  christos 	 "R_PPC_RELATIVE",	/* name */
    554  1.1  christos 	 FALSE,			/* partial_inplace */
    555  1.1  christos 	 0,			/* src_mask */
    556  1.1  christos 	 0xffffffff,		/* dst_mask */
    557  1.1  christos 	 FALSE),		/* pcrel_offset */
    558  1.1  christos 
    559  1.1  christos   /* Like R_PPC_REL24, but uses the value of the symbol within the
    560  1.1  christos      object rather than the final value.  Normally used for
    561  1.1  christos      _GLOBAL_OFFSET_TABLE_.  */
    562  1.1  christos   HOWTO (R_PPC_LOCAL24PC,	/* type */
    563  1.1  christos 	 0,			/* rightshift */
    564  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    565  1.1  christos 	 26,			/* bitsize */
    566  1.1  christos 	 TRUE,			/* pc_relative */
    567  1.1  christos 	 0,			/* bitpos */
    568  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    569  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    570  1.1  christos 	 "R_PPC_LOCAL24PC",	/* name */
    571  1.1  christos 	 FALSE,			/* partial_inplace */
    572  1.1  christos 	 0,			/* src_mask */
    573  1.1  christos 	 0x3fffffc,		/* dst_mask */
    574  1.1  christos 	 TRUE),			/* pcrel_offset */
    575  1.1  christos 
    576  1.1  christos   /* Like R_PPC_ADDR32, but may be unaligned.  */
    577  1.1  christos   HOWTO (R_PPC_UADDR32,		/* type */
    578  1.1  christos 	 0,			/* rightshift */
    579  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    580  1.1  christos 	 32,			/* bitsize */
    581  1.1  christos 	 FALSE,			/* pc_relative */
    582  1.1  christos 	 0,			/* bitpos */
    583  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    584  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    585  1.1  christos 	 "R_PPC_UADDR32",	/* name */
    586  1.1  christos 	 FALSE,			/* partial_inplace */
    587  1.1  christos 	 0,			/* src_mask */
    588  1.1  christos 	 0xffffffff,		/* dst_mask */
    589  1.1  christos 	 FALSE),		/* pcrel_offset */
    590  1.1  christos 
    591  1.1  christos   /* Like R_PPC_ADDR16, but may be unaligned.  */
    592  1.1  christos   HOWTO (R_PPC_UADDR16,		/* type */
    593  1.1  christos 	 0,			/* rightshift */
    594  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    595  1.1  christos 	 16,			/* bitsize */
    596  1.1  christos 	 FALSE,			/* pc_relative */
    597  1.1  christos 	 0,			/* bitpos */
    598  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    599  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    600  1.1  christos 	 "R_PPC_UADDR16",	/* name */
    601  1.1  christos 	 FALSE,			/* partial_inplace */
    602  1.1  christos 	 0,			/* src_mask */
    603  1.1  christos 	 0xffff,		/* dst_mask */
    604  1.1  christos 	 FALSE),		/* pcrel_offset */
    605  1.1  christos 
    606  1.1  christos   /* 32-bit PC relative */
    607  1.1  christos   HOWTO (R_PPC_REL32,		/* type */
    608  1.1  christos 	 0,			/* rightshift */
    609  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    610  1.1  christos 	 32,			/* bitsize */
    611  1.1  christos 	 TRUE,			/* pc_relative */
    612  1.1  christos 	 0,			/* bitpos */
    613  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    614  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    615  1.1  christos 	 "R_PPC_REL32",		/* name */
    616  1.1  christos 	 FALSE,			/* partial_inplace */
    617  1.1  christos 	 0,			/* src_mask */
    618  1.1  christos 	 0xffffffff,		/* dst_mask */
    619  1.1  christos 	 TRUE),			/* pcrel_offset */
    620  1.1  christos 
    621  1.1  christos   /* 32-bit relocation to the symbol's procedure linkage table.
    622  1.1  christos      FIXME: not supported.  */
    623  1.1  christos   HOWTO (R_PPC_PLT32,		/* type */
    624  1.1  christos 	 0,			/* rightshift */
    625  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    626  1.1  christos 	 32,			/* bitsize */
    627  1.1  christos 	 FALSE,			/* pc_relative */
    628  1.1  christos 	 0,			/* bitpos */
    629  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    630  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    631  1.1  christos 	 "R_PPC_PLT32",		/* name */
    632  1.1  christos 	 FALSE,			/* partial_inplace */
    633  1.1  christos 	 0,			/* src_mask */
    634  1.1  christos 	 0,			/* dst_mask */
    635  1.1  christos 	 FALSE),		/* pcrel_offset */
    636  1.1  christos 
    637  1.1  christos   /* 32-bit PC relative relocation to the symbol's procedure linkage table.
    638  1.1  christos      FIXME: not supported.  */
    639  1.1  christos   HOWTO (R_PPC_PLTREL32,	/* type */
    640  1.1  christos 	 0,			/* rightshift */
    641  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    642  1.1  christos 	 32,			/* bitsize */
    643  1.1  christos 	 TRUE,			/* pc_relative */
    644  1.1  christos 	 0,			/* bitpos */
    645  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    646  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    647  1.1  christos 	 "R_PPC_PLTREL32",	/* name */
    648  1.1  christos 	 FALSE,			/* partial_inplace */
    649  1.1  christos 	 0,			/* src_mask */
    650  1.1  christos 	 0,			/* dst_mask */
    651  1.1  christos 	 TRUE),			/* pcrel_offset */
    652  1.1  christos 
    653  1.1  christos   /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for
    654  1.1  christos      the symbol.  */
    655  1.1  christos   HOWTO (R_PPC_PLT16_LO,	/* type */
    656  1.1  christos 	 0,			/* rightshift */
    657  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    658  1.1  christos 	 16,			/* bitsize */
    659  1.1  christos 	 FALSE,			/* pc_relative */
    660  1.1  christos 	 0,			/* bitpos */
    661  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    662  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    663  1.1  christos 	 "R_PPC_PLT16_LO",	/* name */
    664  1.1  christos 	 FALSE,			/* partial_inplace */
    665  1.1  christos 	 0,			/* src_mask */
    666  1.1  christos 	 0xffff,		/* dst_mask */
    667  1.1  christos 	 FALSE),		/* pcrel_offset */
    668  1.1  christos 
    669  1.1  christos   /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for
    670  1.1  christos      the symbol.  */
    671  1.1  christos   HOWTO (R_PPC_PLT16_HI,	/* type */
    672  1.1  christos 	 16,			/* rightshift */
    673  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    674  1.1  christos 	 16,			/* bitsize */
    675  1.1  christos 	 FALSE,			/* pc_relative */
    676  1.1  christos 	 0,			/* bitpos */
    677  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    678  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    679  1.1  christos 	 "R_PPC_PLT16_HI",	/* name */
    680  1.1  christos 	 FALSE,			/* partial_inplace */
    681  1.1  christos 	 0,			/* src_mask */
    682  1.1  christos 	 0xffff,		/* dst_mask */
    683  1.1  christos 	 FALSE),		 /* pcrel_offset */
    684  1.1  christos 
    685  1.1  christos   /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for
    686  1.1  christos      the symbol.  */
    687  1.1  christos   HOWTO (R_PPC_PLT16_HA,	/* type */
    688  1.1  christos 	 16,			/* rightshift */
    689  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    690  1.1  christos 	 16,			/* bitsize */
    691  1.1  christos 	 FALSE,			/* pc_relative */
    692  1.1  christos 	 0,			/* bitpos */
    693  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    694  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
    695  1.1  christos 	 "R_PPC_PLT16_HA",	/* name */
    696  1.1  christos 	 FALSE,			/* partial_inplace */
    697  1.1  christos 	 0,			/* src_mask */
    698  1.1  christos 	 0xffff,		/* dst_mask */
    699  1.1  christos 	 FALSE),		/* pcrel_offset */
    700  1.1  christos 
    701  1.1  christos   /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with
    702  1.1  christos      small data items.  */
    703  1.1  christos   HOWTO (R_PPC_SDAREL16,	/* type */
    704  1.1  christos 	 0,			/* rightshift */
    705  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    706  1.1  christos 	 16,			/* bitsize */
    707  1.1  christos 	 FALSE,			/* pc_relative */
    708  1.1  christos 	 0,			/* bitpos */
    709  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    710  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    711  1.1  christos 	 "R_PPC_SDAREL16",	/* name */
    712  1.1  christos 	 FALSE,			/* partial_inplace */
    713  1.1  christos 	 0,			/* src_mask */
    714  1.1  christos 	 0xffff,		/* dst_mask */
    715  1.1  christos 	 FALSE),		/* pcrel_offset */
    716  1.1  christos 
    717  1.1  christos   /* 16-bit section relative relocation.  */
    718  1.1  christos   HOWTO (R_PPC_SECTOFF,		/* type */
    719  1.1  christos 	 0,			/* rightshift */
    720  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    721  1.1  christos 	 16,			/* bitsize */
    722  1.1  christos 	 FALSE,			/* pc_relative */
    723  1.1  christos 	 0,			/* bitpos */
    724  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    725  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    726  1.1  christos 	 "R_PPC_SECTOFF",	/* name */
    727  1.1  christos 	 FALSE,			/* partial_inplace */
    728  1.1  christos 	 0,			/* src_mask */
    729  1.1  christos 	 0xffff,		/* dst_mask */
    730  1.1  christos 	 FALSE),		/* pcrel_offset */
    731  1.1  christos 
    732  1.1  christos   /* 16-bit lower half section relative relocation.  */
    733  1.1  christos   HOWTO (R_PPC_SECTOFF_LO,	  /* type */
    734  1.1  christos 	 0,			/* rightshift */
    735  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    736  1.1  christos 	 16,			/* bitsize */
    737  1.1  christos 	 FALSE,			/* pc_relative */
    738  1.1  christos 	 0,			/* bitpos */
    739  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    740  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    741  1.1  christos 	 "R_PPC_SECTOFF_LO",	/* name */
    742  1.1  christos 	 FALSE,			/* partial_inplace */
    743  1.1  christos 	 0,			/* src_mask */
    744  1.1  christos 	 0xffff,		/* dst_mask */
    745  1.1  christos 	 FALSE),		/* pcrel_offset */
    746  1.1  christos 
    747  1.1  christos   /* 16-bit upper half section relative relocation.  */
    748  1.1  christos   HOWTO (R_PPC_SECTOFF_HI,	/* type */
    749  1.1  christos 	 16,			/* rightshift */
    750  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    751  1.1  christos 	 16,			/* bitsize */
    752  1.1  christos 	 FALSE,			/* pc_relative */
    753  1.1  christos 	 0,			/* bitpos */
    754  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    755  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    756  1.1  christos 	 "R_PPC_SECTOFF_HI",	/* name */
    757  1.1  christos 	 FALSE,			/* partial_inplace */
    758  1.1  christos 	 0,			/* src_mask */
    759  1.1  christos 	 0xffff,		/* dst_mask */
    760  1.1  christos 	 FALSE),		 /* pcrel_offset */
    761  1.1  christos 
    762  1.1  christos   /* 16-bit upper half adjusted section relative relocation.  */
    763  1.1  christos   HOWTO (R_PPC_SECTOFF_HA,	/* type */
    764  1.1  christos 	 16,			/* rightshift */
    765  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    766  1.1  christos 	 16,			/* bitsize */
    767  1.1  christos 	 FALSE,			/* pc_relative */
    768  1.1  christos 	 0,			/* bitpos */
    769  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
    770  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
    771  1.1  christos 	 "R_PPC_SECTOFF_HA",	/* name */
    772  1.1  christos 	 FALSE,			/* partial_inplace */
    773  1.1  christos 	 0,			/* src_mask */
    774  1.1  christos 	 0xffff,		/* dst_mask */
    775  1.1  christos 	 FALSE),		/* pcrel_offset */
    776  1.1  christos 
    777  1.1  christos   /* Marker relocs for TLS.  */
    778  1.1  christos   HOWTO (R_PPC_TLS,
    779  1.1  christos 	 0,			/* rightshift */
    780  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    781  1.1  christos 	 32,			/* bitsize */
    782  1.1  christos 	 FALSE,			/* pc_relative */
    783  1.1  christos 	 0,			/* bitpos */
    784  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    785  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
    786  1.1  christos 	 "R_PPC_TLS",		/* name */
    787  1.1  christos 	 FALSE,			/* partial_inplace */
    788  1.1  christos 	 0,			/* src_mask */
    789  1.1  christos 	 0,			/* dst_mask */
    790  1.1  christos 	 FALSE),		/* pcrel_offset */
    791  1.1  christos 
    792  1.1  christos   HOWTO (R_PPC_TLSGD,
    793  1.1  christos 	 0,			/* rightshift */
    794  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    795  1.1  christos 	 32,			/* bitsize */
    796  1.1  christos 	 FALSE,			/* pc_relative */
    797  1.1  christos 	 0,			/* bitpos */
    798  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    799  1.1  christos 	 bfd_elf_generic_reloc, /* special_function */
    800  1.1  christos 	 "R_PPC_TLSGD",		/* name */
    801  1.1  christos 	 FALSE,			/* partial_inplace */
    802  1.1  christos 	 0,			/* src_mask */
    803  1.1  christos 	 0,			/* dst_mask */
    804  1.1  christos 	 FALSE),		/* pcrel_offset */
    805  1.1  christos 
    806  1.1  christos   HOWTO (R_PPC_TLSLD,
    807  1.1  christos 	 0,			/* rightshift */
    808  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    809  1.1  christos 	 32,			/* bitsize */
    810  1.1  christos 	 FALSE,			/* pc_relative */
    811  1.1  christos 	 0,			/* bitpos */
    812  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    813  1.1  christos 	 bfd_elf_generic_reloc, /* special_function */
    814  1.1  christos 	 "R_PPC_TLSLD",		/* name */
    815  1.1  christos 	 FALSE,			/* partial_inplace */
    816  1.1  christos 	 0,			/* src_mask */
    817  1.1  christos 	 0,			/* dst_mask */
    818  1.1  christos 	 FALSE),		/* pcrel_offset */
    819  1.1  christos 
    820  1.1  christos   /* Computes the load module index of the load module that contains the
    821  1.1  christos      definition of its TLS sym.  */
    822  1.1  christos   HOWTO (R_PPC_DTPMOD32,
    823  1.1  christos 	 0,			/* rightshift */
    824  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    825  1.1  christos 	 32,			/* bitsize */
    826  1.1  christos 	 FALSE,			/* pc_relative */
    827  1.1  christos 	 0,			/* bitpos */
    828  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    829  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    830  1.1  christos 	 "R_PPC_DTPMOD32",	/* name */
    831  1.1  christos 	 FALSE,			/* partial_inplace */
    832  1.1  christos 	 0,			/* src_mask */
    833  1.1  christos 	 0xffffffff,		/* dst_mask */
    834  1.1  christos 	 FALSE),		/* pcrel_offset */
    835  1.1  christos 
    836  1.1  christos   /* Computes a dtv-relative displacement, the difference between the value
    837  1.1  christos      of sym+add and the base address of the thread-local storage block that
    838  1.1  christos      contains the definition of sym, minus 0x8000.  */
    839  1.1  christos   HOWTO (R_PPC_DTPREL32,
    840  1.1  christos 	 0,			/* rightshift */
    841  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    842  1.1  christos 	 32,			/* bitsize */
    843  1.1  christos 	 FALSE,			/* pc_relative */
    844  1.1  christos 	 0,			/* bitpos */
    845  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    846  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    847  1.1  christos 	 "R_PPC_DTPREL32",	/* name */
    848  1.1  christos 	 FALSE,			/* partial_inplace */
    849  1.1  christos 	 0,			/* src_mask */
    850  1.1  christos 	 0xffffffff,		/* dst_mask */
    851  1.1  christos 	 FALSE),		/* pcrel_offset */
    852  1.1  christos 
    853  1.1  christos   /* A 16 bit dtprel reloc.  */
    854  1.1  christos   HOWTO (R_PPC_DTPREL16,
    855  1.1  christos 	 0,			/* rightshift */
    856  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    857  1.1  christos 	 16,			/* bitsize */
    858  1.1  christos 	 FALSE,			/* pc_relative */
    859  1.1  christos 	 0,			/* bitpos */
    860  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    861  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    862  1.1  christos 	 "R_PPC_DTPREL16",	/* name */
    863  1.1  christos 	 FALSE,			/* partial_inplace */
    864  1.1  christos 	 0,			/* src_mask */
    865  1.1  christos 	 0xffff,		/* dst_mask */
    866  1.1  christos 	 FALSE),		/* pcrel_offset */
    867  1.1  christos 
    868  1.1  christos   /* Like DTPREL16, but no overflow.  */
    869  1.1  christos   HOWTO (R_PPC_DTPREL16_LO,
    870  1.1  christos 	 0,			/* rightshift */
    871  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    872  1.1  christos 	 16,			/* bitsize */
    873  1.1  christos 	 FALSE,			/* pc_relative */
    874  1.1  christos 	 0,			/* bitpos */
    875  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    876  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    877  1.1  christos 	 "R_PPC_DTPREL16_LO",	/* name */
    878  1.1  christos 	 FALSE,			/* partial_inplace */
    879  1.1  christos 	 0,			/* src_mask */
    880  1.1  christos 	 0xffff,		/* dst_mask */
    881  1.1  christos 	 FALSE),		/* pcrel_offset */
    882  1.1  christos 
    883  1.1  christos   /* Like DTPREL16_LO, but next higher group of 16 bits.  */
    884  1.1  christos   HOWTO (R_PPC_DTPREL16_HI,
    885  1.1  christos 	 16,			/* rightshift */
    886  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    887  1.1  christos 	 16,			/* bitsize */
    888  1.1  christos 	 FALSE,			/* pc_relative */
    889  1.1  christos 	 0,			/* bitpos */
    890  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    891  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    892  1.1  christos 	 "R_PPC_DTPREL16_HI",	/* name */
    893  1.1  christos 	 FALSE,			/* partial_inplace */
    894  1.1  christos 	 0,			/* src_mask */
    895  1.1  christos 	 0xffff,		/* dst_mask */
    896  1.1  christos 	 FALSE),		/* pcrel_offset */
    897  1.1  christos 
    898  1.1  christos   /* Like DTPREL16_HI, but adjust for low 16 bits.  */
    899  1.1  christos   HOWTO (R_PPC_DTPREL16_HA,
    900  1.1  christos 	 16,			/* rightshift */
    901  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    902  1.1  christos 	 16,			/* bitsize */
    903  1.1  christos 	 FALSE,			/* pc_relative */
    904  1.1  christos 	 0,			/* bitpos */
    905  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    906  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    907  1.1  christos 	 "R_PPC_DTPREL16_HA",	/* name */
    908  1.1  christos 	 FALSE,			/* partial_inplace */
    909  1.1  christos 	 0,			/* src_mask */
    910  1.1  christos 	 0xffff,		/* dst_mask */
    911  1.1  christos 	 FALSE),		/* pcrel_offset */
    912  1.1  christos 
    913  1.1  christos   /* Computes a tp-relative displacement, the difference between the value of
    914  1.1  christos      sym+add and the value of the thread pointer (r13).  */
    915  1.1  christos   HOWTO (R_PPC_TPREL32,
    916  1.1  christos 	 0,			/* rightshift */
    917  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    918  1.1  christos 	 32,			/* 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_TPREL32",	/* name */
    924  1.1  christos 	 FALSE,			/* partial_inplace */
    925  1.1  christos 	 0,			/* src_mask */
    926  1.1  christos 	 0xffffffff,		/* dst_mask */
    927  1.1  christos 	 FALSE),		/* pcrel_offset */
    928  1.1  christos 
    929  1.1  christos   /* A 16 bit tprel reloc.  */
    930  1.1  christos   HOWTO (R_PPC_TPREL16,
    931  1.1  christos 	 0,			/* 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_signed, /* complain_on_overflow */
    937  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    938  1.1  christos 	 "R_PPC_TPREL16",	/* 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   /* Like TPREL16, but no overflow.  */
    945  1.1  christos   HOWTO (R_PPC_TPREL16_LO,
    946  1.1  christos 	 0,			/* rightshift */
    947  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    948  1.1  christos 	 16,			/* bitsize */
    949  1.1  christos 	 FALSE,			/* pc_relative */
    950  1.1  christos 	 0,			/* bitpos */
    951  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    952  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    953  1.1  christos 	 "R_PPC_TPREL16_LO",	/* name */
    954  1.1  christos 	 FALSE,			/* partial_inplace */
    955  1.1  christos 	 0,			/* src_mask */
    956  1.1  christos 	 0xffff,		/* dst_mask */
    957  1.1  christos 	 FALSE),		/* pcrel_offset */
    958  1.1  christos 
    959  1.1  christos   /* Like TPREL16_LO, but next higher group of 16 bits.  */
    960  1.1  christos   HOWTO (R_PPC_TPREL16_HI,
    961  1.1  christos 	 16,			/* rightshift */
    962  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    963  1.1  christos 	 16,			/* bitsize */
    964  1.1  christos 	 FALSE,			/* pc_relative */
    965  1.1  christos 	 0,			/* bitpos */
    966  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    967  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    968  1.1  christos 	 "R_PPC_TPREL16_HI",	/* name */
    969  1.1  christos 	 FALSE,			/* partial_inplace */
    970  1.1  christos 	 0,			/* src_mask */
    971  1.1  christos 	 0xffff,		/* dst_mask */
    972  1.1  christos 	 FALSE),		/* pcrel_offset */
    973  1.1  christos 
    974  1.1  christos   /* Like TPREL16_HI, but adjust for low 16 bits.  */
    975  1.1  christos   HOWTO (R_PPC_TPREL16_HA,
    976  1.1  christos 	 16,			/* rightshift */
    977  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    978  1.1  christos 	 16,			/* bitsize */
    979  1.1  christos 	 FALSE,			/* pc_relative */
    980  1.1  christos 	 0,			/* bitpos */
    981  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
    982  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
    983  1.1  christos 	 "R_PPC_TPREL16_HA",	/* name */
    984  1.1  christos 	 FALSE,			/* partial_inplace */
    985  1.1  christos 	 0,			/* src_mask */
    986  1.1  christos 	 0xffff,		/* dst_mask */
    987  1.1  christos 	 FALSE),		/* pcrel_offset */
    988  1.1  christos 
    989  1.1  christos   /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
    990  1.1  christos      with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
    991  1.1  christos      to the first entry.  */
    992  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16,
    993  1.1  christos 	 0,			/* rightshift */
    994  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    995  1.1  christos 	 16,			/* bitsize */
    996  1.1  christos 	 FALSE,			/* pc_relative */
    997  1.1  christos 	 0,			/* bitpos */
    998  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
    999  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1000  1.1  christos 	 "R_PPC_GOT_TLSGD16",	/* name */
   1001  1.1  christos 	 FALSE,			/* partial_inplace */
   1002  1.1  christos 	 0,			/* src_mask */
   1003  1.1  christos 	 0xffff,		/* dst_mask */
   1004  1.1  christos 	 FALSE),		/* pcrel_offset */
   1005  1.1  christos 
   1006  1.1  christos   /* Like GOT_TLSGD16, but no overflow.  */
   1007  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_LO,
   1008  1.1  christos 	 0,			/* rightshift */
   1009  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1010  1.1  christos 	 16,			/* bitsize */
   1011  1.1  christos 	 FALSE,			/* pc_relative */
   1012  1.1  christos 	 0,			/* bitpos */
   1013  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1014  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1015  1.1  christos 	 "R_PPC_GOT_TLSGD16_LO", /* name */
   1016  1.1  christos 	 FALSE,			/* partial_inplace */
   1017  1.1  christos 	 0,			/* src_mask */
   1018  1.1  christos 	 0xffff,		/* dst_mask */
   1019  1.1  christos 	 FALSE),		/* pcrel_offset */
   1020  1.1  christos 
   1021  1.1  christos   /* Like GOT_TLSGD16_LO, but next higher group of 16 bits.  */
   1022  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_HI,
   1023  1.1  christos 	 16,			/* rightshift */
   1024  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1025  1.1  christos 	 16,			/* bitsize */
   1026  1.1  christos 	 FALSE,			/* pc_relative */
   1027  1.1  christos 	 0,			/* bitpos */
   1028  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1029  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1030  1.1  christos 	 "R_PPC_GOT_TLSGD16_HI", /* name */
   1031  1.1  christos 	 FALSE,			/* partial_inplace */
   1032  1.1  christos 	 0,			/* src_mask */
   1033  1.1  christos 	 0xffff,		/* dst_mask */
   1034  1.1  christos 	 FALSE),		/* pcrel_offset */
   1035  1.1  christos 
   1036  1.1  christos   /* Like GOT_TLSGD16_HI, but adjust for low 16 bits.  */
   1037  1.1  christos   HOWTO (R_PPC_GOT_TLSGD16_HA,
   1038  1.1  christos 	 16,			/* rightshift */
   1039  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1040  1.1  christos 	 16,			/* bitsize */
   1041  1.1  christos 	 FALSE,			/* pc_relative */
   1042  1.1  christos 	 0,			/* bitpos */
   1043  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1044  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1045  1.1  christos 	 "R_PPC_GOT_TLSGD16_HA", /* name */
   1046  1.1  christos 	 FALSE,			/* partial_inplace */
   1047  1.1  christos 	 0,			/* src_mask */
   1048  1.1  christos 	 0xffff,		/* dst_mask */
   1049  1.1  christos 	 FALSE),		/* pcrel_offset */
   1050  1.1  christos 
   1051  1.1  christos   /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
   1052  1.1  christos      with values (sym+add)@dtpmod and zero, and computes the offset to the
   1053  1.1  christos      first entry.  */
   1054  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16,
   1055  1.1  christos 	 0,			/* rightshift */
   1056  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1057  1.1  christos 	 16,			/* bitsize */
   1058  1.1  christos 	 FALSE,			/* pc_relative */
   1059  1.1  christos 	 0,			/* bitpos */
   1060  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1061  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1062  1.1  christos 	 "R_PPC_GOT_TLSLD16",	/* name */
   1063  1.1  christos 	 FALSE,			/* partial_inplace */
   1064  1.1  christos 	 0,			/* src_mask */
   1065  1.1  christos 	 0xffff,		/* dst_mask */
   1066  1.1  christos 	 FALSE),		/* pcrel_offset */
   1067  1.1  christos 
   1068  1.1  christos   /* Like GOT_TLSLD16, but no overflow.  */
   1069  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_LO,
   1070  1.1  christos 	 0,			/* rightshift */
   1071  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1072  1.1  christos 	 16,			/* bitsize */
   1073  1.1  christos 	 FALSE,			/* pc_relative */
   1074  1.1  christos 	 0,			/* bitpos */
   1075  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1076  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1077  1.1  christos 	 "R_PPC_GOT_TLSLD16_LO", /* name */
   1078  1.1  christos 	 FALSE,			/* partial_inplace */
   1079  1.1  christos 	 0,			/* src_mask */
   1080  1.1  christos 	 0xffff,		/* dst_mask */
   1081  1.1  christos 	 FALSE),		/* pcrel_offset */
   1082  1.1  christos 
   1083  1.1  christos   /* Like GOT_TLSLD16_LO, but next higher group of 16 bits.  */
   1084  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_HI,
   1085  1.1  christos 	 16,			/* rightshift */
   1086  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1087  1.1  christos 	 16,			/* bitsize */
   1088  1.1  christos 	 FALSE,			/* pc_relative */
   1089  1.1  christos 	 0,			/* bitpos */
   1090  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1091  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1092  1.1  christos 	 "R_PPC_GOT_TLSLD16_HI", /* name */
   1093  1.1  christos 	 FALSE,			/* partial_inplace */
   1094  1.1  christos 	 0,			/* src_mask */
   1095  1.1  christos 	 0xffff,		/* dst_mask */
   1096  1.1  christos 	 FALSE),		/* pcrel_offset */
   1097  1.1  christos 
   1098  1.1  christos   /* Like GOT_TLSLD16_HI, but adjust for low 16 bits.  */
   1099  1.1  christos   HOWTO (R_PPC_GOT_TLSLD16_HA,
   1100  1.1  christos 	 16,			/* rightshift */
   1101  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1102  1.1  christos 	 16,			/* bitsize */
   1103  1.1  christos 	 FALSE,			/* pc_relative */
   1104  1.1  christos 	 0,			/* bitpos */
   1105  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1106  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1107  1.1  christos 	 "R_PPC_GOT_TLSLD16_HA", /* name */
   1108  1.1  christos 	 FALSE,			/* partial_inplace */
   1109  1.1  christos 	 0,			/* src_mask */
   1110  1.1  christos 	 0xffff,		/* dst_mask */
   1111  1.1  christos 	 FALSE),		/* pcrel_offset */
   1112  1.1  christos 
   1113  1.1  christos   /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
   1114  1.1  christos      the offset to the entry.  */
   1115  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16,
   1116  1.1  christos 	 0,			/* 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_signed, /* complain_on_overflow */
   1122  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1123  1.1  christos 	 "R_PPC_GOT_DTPREL16",	/* 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_DTPREL16, but no overflow.  */
   1130  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_LO,
   1131  1.1  christos 	 0,			/* 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_DTPREL16_LO", /* 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   /* Like GOT_DTPREL16_LO, but next higher group of 16 bits.  */
   1145  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_HI,
   1146  1.1  christos 	 16,			/* rightshift */
   1147  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1148  1.1  christos 	 16,			/* bitsize */
   1149  1.1  christos 	 FALSE,			/* pc_relative */
   1150  1.1  christos 	 0,			/* bitpos */
   1151  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1152  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1153  1.1  christos 	 "R_PPC_GOT_DTPREL16_HI", /* name */
   1154  1.1  christos 	 FALSE,			/* partial_inplace */
   1155  1.1  christos 	 0,			/* src_mask */
   1156  1.1  christos 	 0xffff,		/* dst_mask */
   1157  1.1  christos 	 FALSE),		/* pcrel_offset */
   1158  1.1  christos 
   1159  1.1  christos   /* Like GOT_DTPREL16_HI, but adjust for low 16 bits.  */
   1160  1.1  christos   HOWTO (R_PPC_GOT_DTPREL16_HA,
   1161  1.1  christos 	 16,			/* rightshift */
   1162  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1163  1.1  christos 	 16,			/* bitsize */
   1164  1.1  christos 	 FALSE,			/* pc_relative */
   1165  1.1  christos 	 0,			/* bitpos */
   1166  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1167  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1168  1.1  christos 	 "R_PPC_GOT_DTPREL16_HA", /* name */
   1169  1.1  christos 	 FALSE,			/* partial_inplace */
   1170  1.1  christos 	 0,			/* src_mask */
   1171  1.1  christos 	 0xffff,		/* dst_mask */
   1172  1.1  christos 	 FALSE),		/* pcrel_offset */
   1173  1.1  christos 
   1174  1.1  christos   /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
   1175  1.1  christos      offset to the entry.  */
   1176  1.1  christos   HOWTO (R_PPC_GOT_TPREL16,
   1177  1.1  christos 	 0,			/* 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_signed, /* complain_on_overflow */
   1183  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1184  1.1  christos 	 "R_PPC_GOT_TPREL16",	/* 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_TPREL16, but no overflow.  */
   1191  1.1  christos   HOWTO (R_PPC_GOT_TPREL16_LO,
   1192  1.1  christos 	 0,			/* 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_TPREL16_LO", /* 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   /* Like GOT_TPREL16_LO, but next higher group of 16 bits.  */
   1206  1.1  christos   HOWTO (R_PPC_GOT_TPREL16_HI,
   1207  1.1  christos 	 16,			/* rightshift */
   1208  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1209  1.1  christos 	 16,			/* bitsize */
   1210  1.1  christos 	 FALSE,			/* pc_relative */
   1211  1.1  christos 	 0,			/* bitpos */
   1212  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1213  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1214  1.1  christos 	 "R_PPC_GOT_TPREL16_HI", /* name */
   1215  1.1  christos 	 FALSE,			/* partial_inplace */
   1216  1.1  christos 	 0,			/* src_mask */
   1217  1.1  christos 	 0xffff,		/* dst_mask */
   1218  1.1  christos 	 FALSE),		/* pcrel_offset */
   1219  1.1  christos 
   1220  1.1  christos   /* Like GOT_TPREL16_HI, but adjust for low 16 bits.  */
   1221  1.1  christos   HOWTO (R_PPC_GOT_TPREL16_HA,
   1222  1.1  christos 	 16,			/* rightshift */
   1223  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1224  1.1  christos 	 16,			/* bitsize */
   1225  1.1  christos 	 FALSE,			/* pc_relative */
   1226  1.1  christos 	 0,			/* bitpos */
   1227  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1228  1.1  christos 	 ppc_elf_unhandled_reloc, /* special_function */
   1229  1.1  christos 	 "R_PPC_GOT_TPREL16_HA", /* name */
   1230  1.1  christos 	 FALSE,			/* partial_inplace */
   1231  1.1  christos 	 0,			/* src_mask */
   1232  1.1  christos 	 0xffff,		/* dst_mask */
   1233  1.1  christos 	 FALSE),		/* pcrel_offset */
   1234  1.1  christos 
   1235  1.1  christos   /* The remaining relocs are from the Embedded ELF ABI, and are not
   1236  1.1  christos      in the SVR4 ELF ABI.  */
   1237  1.1  christos 
   1238  1.1  christos   /* 32 bit value resulting from the addend minus the symbol.  */
   1239  1.1  christos   HOWTO (R_PPC_EMB_NADDR32,	/* type */
   1240  1.1  christos 	 0,			/* rightshift */
   1241  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1242  1.1  christos 	 32,			/* bitsize */
   1243  1.1  christos 	 FALSE,			/* pc_relative */
   1244  1.1  christos 	 0,			/* bitpos */
   1245  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1246  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1247  1.1  christos 	 "R_PPC_EMB_NADDR32",	/* name */
   1248  1.1  christos 	 FALSE,			/* partial_inplace */
   1249  1.1  christos 	 0,			/* src_mask */
   1250  1.1  christos 	 0xffffffff,		/* dst_mask */
   1251  1.1  christos 	 FALSE),		/* pcrel_offset */
   1252  1.1  christos 
   1253  1.1  christos   /* 16 bit value resulting from the addend minus the symbol.  */
   1254  1.1  christos   HOWTO (R_PPC_EMB_NADDR16,	/* type */
   1255  1.1  christos 	 0,			/* rightshift */
   1256  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1257  1.1  christos 	 16,			/* bitsize */
   1258  1.1  christos 	 FALSE,			/* pc_relative */
   1259  1.1  christos 	 0,			/* bitpos */
   1260  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1261  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1262  1.1  christos 	 "R_PPC_EMB_NADDR16",	/* name */
   1263  1.1  christos 	 FALSE,			/* partial_inplace */
   1264  1.1  christos 	 0,			/* src_mask */
   1265  1.1  christos 	 0xffff,		/* dst_mask */
   1266  1.1  christos 	 FALSE),		/* pcrel_offset */
   1267  1.1  christos 
   1268  1.1  christos   /* 16 bit value resulting from the addend minus the symbol.  */
   1269  1.1  christos   HOWTO (R_PPC_EMB_NADDR16_LO,	/* type */
   1270  1.1  christos 	 0,			/* rightshift */
   1271  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1272  1.1  christos 	 16,			/* bitsize */
   1273  1.1  christos 	 FALSE,			/* pc_relative */
   1274  1.1  christos 	 0,			/* bitpos */
   1275  1.1  christos 	 complain_overflow_dont,/* complain_on_overflow */
   1276  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1277  1.1  christos 	 "R_PPC_EMB_ADDR16_LO",	/* name */
   1278  1.1  christos 	 FALSE,			/* partial_inplace */
   1279  1.1  christos 	 0,			/* src_mask */
   1280  1.1  christos 	 0xffff,		/* dst_mask */
   1281  1.1  christos 	 FALSE),		/* pcrel_offset */
   1282  1.1  christos 
   1283  1.1  christos   /* The high order 16 bits of the addend minus the symbol.  */
   1284  1.1  christos   HOWTO (R_PPC_EMB_NADDR16_HI,	/* type */
   1285  1.1  christos 	 16,			/* rightshift */
   1286  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1287  1.1  christos 	 16,			/* bitsize */
   1288  1.1  christos 	 FALSE,			/* pc_relative */
   1289  1.1  christos 	 0,			/* bitpos */
   1290  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1291  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1292  1.1  christos 	 "R_PPC_EMB_NADDR16_HI", /* name */
   1293  1.1  christos 	 FALSE,			/* partial_inplace */
   1294  1.1  christos 	 0,			/* src_mask */
   1295  1.1  christos 	 0xffff,		/* dst_mask */
   1296  1.1  christos 	 FALSE),		/* pcrel_offset */
   1297  1.1  christos 
   1298  1.1  christos   /* The high order 16 bits of the result of the addend minus the address,
   1299  1.1  christos      plus 1 if the contents of the low 16 bits, treated as a signed number,
   1300  1.1  christos      is negative.  */
   1301  1.1  christos   HOWTO (R_PPC_EMB_NADDR16_HA,	/* type */
   1302  1.1  christos 	 16,			/* rightshift */
   1303  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1304  1.1  christos 	 16,			/* bitsize */
   1305  1.1  christos 	 FALSE,			/* pc_relative */
   1306  1.1  christos 	 0,			/* bitpos */
   1307  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1308  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1309  1.1  christos 	 "R_PPC_EMB_NADDR16_HA", /* name */
   1310  1.1  christos 	 FALSE,			/* partial_inplace */
   1311  1.1  christos 	 0,			/* src_mask */
   1312  1.1  christos 	 0xffff,		/* dst_mask */
   1313  1.1  christos 	 FALSE),		/* pcrel_offset */
   1314  1.1  christos 
   1315  1.1  christos   /* 16 bit value resulting from allocating a 4 byte word to hold an
   1316  1.1  christos      address in the .sdata section, and returning the offset from
   1317  1.1  christos      _SDA_BASE_ for that relocation.  */
   1318  1.1  christos   HOWTO (R_PPC_EMB_SDAI16,	/* type */
   1319  1.1  christos 	 0,			/* rightshift */
   1320  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1321  1.1  christos 	 16,			/* bitsize */
   1322  1.1  christos 	 FALSE,			/* pc_relative */
   1323  1.1  christos 	 0,			/* bitpos */
   1324  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1325  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1326  1.1  christos 	 "R_PPC_EMB_SDAI16",	/* name */
   1327  1.1  christos 	 FALSE,			/* partial_inplace */
   1328  1.1  christos 	 0,			/* src_mask */
   1329  1.1  christos 	 0xffff,		/* dst_mask */
   1330  1.1  christos 	 FALSE),		/* pcrel_offset */
   1331  1.1  christos 
   1332  1.1  christos   /* 16 bit value resulting from allocating a 4 byte word to hold an
   1333  1.1  christos      address in the .sdata2 section, and returning the offset from
   1334  1.1  christos      _SDA2_BASE_ for that relocation.  */
   1335  1.1  christos   HOWTO (R_PPC_EMB_SDA2I16,	/* type */
   1336  1.1  christos 	 0,			/* rightshift */
   1337  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1338  1.1  christos 	 16,			/* bitsize */
   1339  1.1  christos 	 FALSE,			/* pc_relative */
   1340  1.1  christos 	 0,			/* bitpos */
   1341  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1342  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1343  1.1  christos 	 "R_PPC_EMB_SDA2I16",	/* name */
   1344  1.1  christos 	 FALSE,			/* partial_inplace */
   1345  1.1  christos 	 0,			/* src_mask */
   1346  1.1  christos 	 0xffff,		/* dst_mask */
   1347  1.1  christos 	 FALSE),		/* pcrel_offset */
   1348  1.1  christos 
   1349  1.1  christos   /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with
   1350  1.1  christos      small data items.	 */
   1351  1.1  christos   HOWTO (R_PPC_EMB_SDA2REL,	/* type */
   1352  1.1  christos 	 0,			/* rightshift */
   1353  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1354  1.1  christos 	 16,			/* bitsize */
   1355  1.1  christos 	 FALSE,			/* pc_relative */
   1356  1.1  christos 	 0,			/* bitpos */
   1357  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1358  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1359  1.1  christos 	 "R_PPC_EMB_SDA2REL",	/* name */
   1360  1.1  christos 	 FALSE,			/* partial_inplace */
   1361  1.1  christos 	 0,			/* src_mask */
   1362  1.1  christos 	 0xffff,		/* dst_mask */
   1363  1.1  christos 	 FALSE),		/* pcrel_offset */
   1364  1.1  christos 
   1365  1.1  christos   /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit
   1366  1.1  christos      signed offset from the appropriate base, and filling in the register
   1367  1.1  christos      field with the appropriate register (0, 2, or 13).  */
   1368  1.1  christos   HOWTO (R_PPC_EMB_SDA21,	/* type */
   1369  1.1  christos 	 0,			/* rightshift */
   1370  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1371  1.1  christos 	 16,			/* bitsize */
   1372  1.1  christos 	 FALSE,			/* pc_relative */
   1373  1.1  christos 	 0,			/* bitpos */
   1374  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1375  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1376  1.1  christos 	 "R_PPC_EMB_SDA21",	/* name */
   1377  1.1  christos 	 FALSE,			/* partial_inplace */
   1378  1.1  christos 	 0,			/* src_mask */
   1379  1.1  christos 	 0xffff,		/* dst_mask */
   1380  1.1  christos 	 FALSE),		/* pcrel_offset */
   1381  1.1  christos 
   1382  1.1  christos   /* Relocation not handled: R_PPC_EMB_MRKREF */
   1383  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELSEC16 */
   1384  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_LO */
   1385  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_HI */
   1386  1.1  christos   /* Relocation not handled: R_PPC_EMB_RELST_HA */
   1387  1.1  christos   /* Relocation not handled: R_PPC_EMB_BIT_FLD */
   1388  1.1  christos 
   1389  1.1  christos   /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling
   1390  1.1  christos      in the 16 bit signed offset from the appropriate base, and filling in the
   1391  1.1  christos      register field with the appropriate register (0, 2, or 13).  */
   1392  1.1  christos   HOWTO (R_PPC_EMB_RELSDA,	/* type */
   1393  1.1  christos 	 0,			/* rightshift */
   1394  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1395  1.1  christos 	 16,			/* bitsize */
   1396  1.1  christos 	 FALSE,			/* pc_relative */
   1397  1.1  christos 	 0,			/* bitpos */
   1398  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1399  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1400  1.1  christos 	 "R_PPC_EMB_RELSDA",	/* name */
   1401  1.1  christos 	 FALSE,			/* partial_inplace */
   1402  1.1  christos 	 0,			/* src_mask */
   1403  1.1  christos 	 0xffff,		/* dst_mask */
   1404  1.1  christos 	 FALSE),		/* pcrel_offset */
   1405  1.1  christos 
   1406  1.1  christos   /* A relative 8 bit branch.  */
   1407  1.1  christos   HOWTO (R_PPC_VLE_REL8,	/* type */
   1408  1.1  christos 	 1,			/* rightshift */
   1409  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1410  1.1  christos 	 8,			/* bitsize */
   1411  1.1  christos 	 TRUE,			/* pc_relative */
   1412  1.1  christos 	 0,			/* bitpos */
   1413  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1414  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1415  1.1  christos 	 "R_PPC_VLE_REL8",	/* name */
   1416  1.1  christos 	 FALSE,			/* partial_inplace */
   1417  1.1  christos 	 0,			/* src_mask */
   1418  1.1  christos 	 0xff,			/* dst_mask */
   1419  1.1  christos 	 TRUE),			/* pcrel_offset */
   1420  1.1  christos 
   1421  1.1  christos   /* A relative 15 bit branch.  */
   1422  1.1  christos   HOWTO (R_PPC_VLE_REL15,	/* type */
   1423  1.1  christos 	 1,			/* rightshift */
   1424  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1425  1.1  christos 	 15,			/* bitsize */
   1426  1.1  christos 	 TRUE,			/* pc_relative */
   1427  1.1  christos 	 1,			/* bitpos */
   1428  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1429  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1430  1.1  christos 	 "R_PPC_VLE_REL15",	/* name */
   1431  1.1  christos 	 FALSE,			/* partial_inplace */
   1432  1.1  christos 	 0,			/* src_mask */
   1433  1.1  christos 	 0xfe,			/* dst_mask */
   1434  1.1  christos 	 TRUE),			/* pcrel_offset */
   1435  1.1  christos 
   1436  1.1  christos   /* A relative 24 bit branch.  */
   1437  1.1  christos   HOWTO (R_PPC_VLE_REL24,	/* type */
   1438  1.1  christos 	 1,			/* rightshift */
   1439  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1440  1.1  christos 	 24,			/* bitsize */
   1441  1.1  christos 	 TRUE,			/* pc_relative */
   1442  1.1  christos 	 1,			/* bitpos */
   1443  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1444  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1445  1.1  christos 	 "R_PPC_VLE_REL24",	/* name */
   1446  1.1  christos 	 FALSE,			/* partial_inplace */
   1447  1.1  christos 	 0,			/* src_mask */
   1448  1.1  christos 	 0x1fffffe,		/* dst_mask */
   1449  1.1  christos 	 TRUE),			/* pcrel_offset */
   1450  1.1  christos 
   1451  1.1  christos   /* The 16 LSBS in split16a format.  */
   1452  1.1  christos   HOWTO (R_PPC_VLE_LO16A,	/* type */
   1453  1.1  christos 	 0,			/* rightshift */
   1454  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1455  1.1  christos 	 32,			/* bitsize */
   1456  1.1  christos 	 FALSE,			/* pc_relative */
   1457  1.1  christos 	 0,			/* bitpos */
   1458  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1459  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1460  1.1  christos 	 "R_PPC_VLE_LO16A",	/* name */
   1461  1.1  christos 	 FALSE,			/* partial_inplace */
   1462  1.1  christos 	 0,			/* src_mask */
   1463  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1464  1.1  christos 	 FALSE),		/* pcrel_offset */
   1465  1.1  christos 
   1466  1.1  christos   /* The 16 LSBS in split16d format.  */
   1467  1.1  christos   HOWTO (R_PPC_VLE_LO16D,	/* type */
   1468  1.1  christos 	 0,			/* rightshift */
   1469  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1470  1.1  christos 	 32,			/* bitsize */
   1471  1.1  christos 	 FALSE,			/* pc_relative */
   1472  1.1  christos 	 0,			/* bitpos */
   1473  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1474  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1475  1.1  christos 	 "R_PPC_VLE_LO16D",		/* name */
   1476  1.1  christos 	 FALSE,			/* partial_inplace */
   1477  1.1  christos 	 0,			/* src_mask */
   1478  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1479  1.1  christos 	 FALSE),		/* pcrel_offset */
   1480  1.1  christos 
   1481  1.1  christos   /* Bits 16-31 split16a format.  */
   1482  1.1  christos   HOWTO (R_PPC_VLE_HI16A,	/* type */
   1483  1.1  christos 	 0,			/* rightshift */
   1484  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1485  1.1  christos 	 32,			/* bitsize */
   1486  1.1  christos 	 FALSE,			/* pc_relative */
   1487  1.1  christos 	 0,			/* bitpos */
   1488  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1489  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1490  1.1  christos 	 "R_PPC_VLE_HI16A",		/* name */
   1491  1.1  christos 	 FALSE,			/* partial_inplace */
   1492  1.1  christos 	 0,			/* src_mask */
   1493  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1494  1.1  christos 	 FALSE),		/* pcrel_offset */
   1495  1.1  christos 
   1496  1.1  christos   /* Bits 16-31 split16d format.  */
   1497  1.1  christos   HOWTO (R_PPC_VLE_HI16D,	/* type */
   1498  1.1  christos 	 0,			/* rightshift */
   1499  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1500  1.1  christos 	 32,			/* bitsize */
   1501  1.1  christos 	 FALSE,			/* pc_relative */
   1502  1.1  christos 	 0,			/* bitpos */
   1503  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1504  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1505  1.1  christos 	 "R_PPC_VLE_HI16D",		/* name */
   1506  1.1  christos 	 FALSE,			/* partial_inplace */
   1507  1.1  christos 	 0,			/* src_mask */
   1508  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1509  1.1  christos 	 FALSE),		/* pcrel_offset */
   1510  1.1  christos 
   1511  1.1  christos   /* Bits 16-31 (High Adjusted) in split16a format.  */
   1512  1.1  christos   HOWTO (R_PPC_VLE_HA16A,	/* type */
   1513  1.1  christos 	 0,			/* rightshift */
   1514  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1515  1.1  christos 	 32,			/* bitsize */
   1516  1.1  christos 	 FALSE,			/* pc_relative */
   1517  1.1  christos 	 0,			/* bitpos */
   1518  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1519  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1520  1.1  christos 	 "R_PPC_VLE_HA16A",		/* name */
   1521  1.1  christos 	 FALSE,			/* partial_inplace */
   1522  1.1  christos 	 0,			/* src_mask */
   1523  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1524  1.1  christos 	 FALSE),		/* pcrel_offset */
   1525  1.1  christos 
   1526  1.1  christos   /* Bits 16-31 (High Adjusted) in split16d format.  */
   1527  1.1  christos   HOWTO (R_PPC_VLE_HA16D,	/* type */
   1528  1.1  christos 	 0,			/* rightshift */
   1529  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1530  1.1  christos 	 32,			/* bitsize */
   1531  1.1  christos 	 FALSE,			/* pc_relative */
   1532  1.1  christos 	 0,			/* bitpos */
   1533  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1534  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1535  1.1  christos 	 "R_PPC_VLE_HA16D",		/* name */
   1536  1.1  christos 	 FALSE,			/* partial_inplace */
   1537  1.1  christos 	 0,			/* src_mask */
   1538  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1539  1.1  christos 	 FALSE),		/* pcrel_offset */
   1540  1.1  christos 
   1541  1.1  christos   /* This reloc does nothing.  */
   1542  1.1  christos   HOWTO (R_PPC_VLE_SDA21,		/* type */
   1543  1.1  christos 	 0,			/* rightshift */
   1544  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1545  1.1  christos 	 32,			/* bitsize */
   1546  1.1  christos 	 FALSE,			/* pc_relative */
   1547  1.1  christos 	 0,			/* bitpos */
   1548  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1549  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1550  1.1  christos 	 "R_PPC_VLE_SDA21",		/* name */
   1551  1.1  christos 	 FALSE,			/* partial_inplace */
   1552  1.1  christos 	 0,			/* src_mask */
   1553  1.1  christos 	 0xffff,		/* dst_mask */
   1554  1.1  christos 	 FALSE),		/* pcrel_offset */
   1555  1.1  christos 
   1556  1.1  christos   /* This reloc does nothing.  */
   1557  1.1  christos   HOWTO (R_PPC_VLE_SDA21_LO,	/* type */
   1558  1.1  christos 	 0,			/* rightshift */
   1559  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1560  1.1  christos 	 32,			/* bitsize */
   1561  1.1  christos 	 FALSE,			/* pc_relative */
   1562  1.1  christos 	 0,			/* bitpos */
   1563  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1564  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1565  1.1  christos 	 "R_PPC_VLE_SDA21_LO",	/* name */
   1566  1.1  christos 	 FALSE,			/* partial_inplace */
   1567  1.1  christos 	 0,			/* src_mask */
   1568  1.1  christos 	 0,			/* dst_mask */
   1569  1.1  christos 	 FALSE),		/* pcrel_offset */
   1570  1.1  christos 
   1571  1.1  christos   /* The 16 LSBS relative to _SDA_BASE_ in split16a format.  */
   1572  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */
   1573  1.1  christos 	 0,			/* rightshift */
   1574  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1575  1.1  christos 	 32,			/* bitsize */
   1576  1.1  christos 	 FALSE,			/* pc_relative */
   1577  1.1  christos 	 0,			/* bitpos */
   1578  1.1  christos 	 complain_overflow_bitfield,	/* complain_on_overflow */
   1579  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1580  1.1  christos 	 "R_PPC_VLE_SDAREL_LO16A",	/* name */
   1581  1.1  christos 	 FALSE,			/* partial_inplace */
   1582  1.1  christos 	 0,			/* src_mask */
   1583  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1584  1.1  christos 	 FALSE),		/* pcrel_offset */
   1585  1.1  christos 
   1586  1.1  christos   /* The 16 LSBS relative to _SDA_BASE_ in split16d format.  */
   1587  1.1  christos   /* This reloc does nothing.  */
   1588  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */
   1589  1.1  christos 	 0,			/* rightshift */
   1590  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1591  1.1  christos 	 32,			/* bitsize */
   1592  1.1  christos 	 FALSE,			/* pc_relative */
   1593  1.1  christos 	 0,			/* bitpos */
   1594  1.1  christos 	 complain_overflow_bitfield,	/* complain_on_overflow */
   1595  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1596  1.1  christos 	 "R_PPC_VLE_SDAREL_LO16D",		/* name */
   1597  1.1  christos 	 FALSE,			/* partial_inplace */
   1598  1.1  christos 	 0,			/* src_mask */
   1599  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1600  1.1  christos 	 FALSE),		/* pcrel_offset */
   1601  1.1  christos 
   1602  1.1  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16a format.  */
   1603  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_HI16A,	/* type */
   1604  1.1  christos 	 0,			/* rightshift */
   1605  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1606  1.1  christos 	 32,			/* bitsize */
   1607  1.1  christos 	 FALSE,			/* pc_relative */
   1608  1.1  christos 	 0,			/* bitpos */
   1609  1.1  christos 	 complain_overflow_bitfield,	/* complain_on_overflow */
   1610  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1611  1.1  christos 	 "R_PPC_VLE_SDAREL_HI16A",	/* name */
   1612  1.1  christos 	 FALSE,			/* partial_inplace */
   1613  1.1  christos 	 0,			/* src_mask */
   1614  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1615  1.1  christos 	 FALSE),		/* pcrel_offset */
   1616  1.1  christos 
   1617  1.1  christos   /* Bits 16-31 relative to _SDA_BASE_ in split16d format.  */
   1618  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_HI16D,	/* type */
   1619  1.1  christos 	 0,			/* rightshift */
   1620  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1621  1.1  christos 	 32,			/* bitsize */
   1622  1.1  christos 	 FALSE,			/* pc_relative */
   1623  1.1  christos 	 0,			/* bitpos */
   1624  1.1  christos 	 complain_overflow_bitfield,	/* complain_on_overflow */
   1625  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1626  1.1  christos 	 "R_PPC_VLE_SDAREL_HI16D",	/* name */
   1627  1.1  christos 	 FALSE,			/* partial_inplace */
   1628  1.1  christos 	 0,			/* src_mask */
   1629  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1630  1.1  christos 	 FALSE),		/* pcrel_offset */
   1631  1.1  christos 
   1632  1.1  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16a format.  */
   1633  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_HA16A,	/* type */
   1634  1.1  christos 	 0,			/* rightshift */
   1635  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1636  1.1  christos 	 32,			/* bitsize */
   1637  1.1  christos 	 FALSE,			/* pc_relative */
   1638  1.1  christos 	 0,			/* bitpos */
   1639  1.1  christos 	 complain_overflow_bitfield,	/* complain_on_overflow */
   1640  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1641  1.1  christos 	 "R_PPC_VLE_SDAREL_HA16A",	/* name */
   1642  1.1  christos 	 FALSE,			/* partial_inplace */
   1643  1.1  christos 	 0,			/* src_mask */
   1644  1.1  christos 	 0x1f007ff,		/* dst_mask */
   1645  1.1  christos 	 FALSE),		/* pcrel_offset */
   1646  1.1  christos 
   1647  1.1  christos   /* Bits 16-31 (HA) relative to _SDA_BASE split16d format.  */
   1648  1.1  christos   HOWTO (R_PPC_VLE_SDAREL_HA16D,	/* type */
   1649  1.1  christos 	 0,			/* rightshift */
   1650  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1651  1.1  christos 	 32,			/* bitsize */
   1652  1.1  christos 	 FALSE,			/* pc_relative */
   1653  1.1  christos 	 0,			/* bitpos */
   1654  1.1  christos 	 complain_overflow_bitfield,	/* complain_on_overflow */
   1655  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1656  1.1  christos 	 "R_PPC_VLE_SDAREL_HA16D",	/* name */
   1657  1.1  christos 	 FALSE,			/* partial_inplace */
   1658  1.1  christos 	 0,			/* src_mask */
   1659  1.1  christos 	 0x1f07ff,		/* dst_mask */
   1660  1.1  christos 	 FALSE),		/* pcrel_offset */
   1661  1.1  christos 
   1662  1.1  christos   HOWTO (R_PPC_IRELATIVE,	/* type */
   1663  1.1  christos 	 0,			/* rightshift */
   1664  1.1  christos 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
   1665  1.1  christos 	 32,			/* bitsize */
   1666  1.1  christos 	 FALSE,			/* pc_relative */
   1667  1.1  christos 	 0,			/* bitpos */
   1668  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1669  1.1  christos 	 bfd_elf_generic_reloc,	 /* special_function */
   1670  1.1  christos 	 "R_PPC_IRELATIVE",	/* name */
   1671  1.1  christos 	 FALSE,			/* partial_inplace */
   1672  1.1  christos 	 0,			/* src_mask */
   1673  1.1  christos 	 0xffffffff,		/* dst_mask */
   1674  1.1  christos 	 FALSE),		/* pcrel_offset */
   1675  1.1  christos 
   1676  1.1  christos   /* A 16 bit relative relocation.  */
   1677  1.1  christos   HOWTO (R_PPC_REL16,		/* type */
   1678  1.1  christos 	 0,			/* rightshift */
   1679  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1680  1.1  christos 	 16,			/* bitsize */
   1681  1.1  christos 	 TRUE,			/* pc_relative */
   1682  1.1  christos 	 0,			/* bitpos */
   1683  1.1  christos 	 complain_overflow_bitfield, /* complain_on_overflow */
   1684  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1685  1.1  christos 	 "R_PPC_REL16",		/* name */
   1686  1.1  christos 	 FALSE,			/* partial_inplace */
   1687  1.1  christos 	 0,			/* src_mask */
   1688  1.1  christos 	 0xffff,		/* dst_mask */
   1689  1.1  christos 	 TRUE),			/* pcrel_offset */
   1690  1.1  christos 
   1691  1.1  christos   /* A 16 bit relative relocation without overflow.  */
   1692  1.1  christos   HOWTO (R_PPC_REL16_LO,	/* type */
   1693  1.1  christos 	 0,			/* rightshift */
   1694  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1695  1.1  christos 	 16,			/* bitsize */
   1696  1.1  christos 	 TRUE,			/* pc_relative */
   1697  1.1  christos 	 0,			/* bitpos */
   1698  1.1  christos 	 complain_overflow_dont,/* complain_on_overflow */
   1699  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1700  1.1  christos 	 "R_PPC_REL16_LO",	/* name */
   1701  1.1  christos 	 FALSE,			/* partial_inplace */
   1702  1.1  christos 	 0,			/* src_mask */
   1703  1.1  christos 	 0xffff,		/* dst_mask */
   1704  1.1  christos 	 TRUE),			/* pcrel_offset */
   1705  1.1  christos 
   1706  1.1  christos   /* The high order 16 bits of a relative address.  */
   1707  1.1  christos   HOWTO (R_PPC_REL16_HI,	/* type */
   1708  1.1  christos 	 16,			/* rightshift */
   1709  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1710  1.1  christos 	 16,			/* bitsize */
   1711  1.1  christos 	 TRUE,			/* pc_relative */
   1712  1.1  christos 	 0,			/* bitpos */
   1713  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1714  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1715  1.1  christos 	 "R_PPC_REL16_HI",	/* name */
   1716  1.1  christos 	 FALSE,			/* partial_inplace */
   1717  1.1  christos 	 0,			/* src_mask */
   1718  1.1  christos 	 0xffff,		/* dst_mask */
   1719  1.1  christos 	 TRUE),			/* pcrel_offset */
   1720  1.1  christos 
   1721  1.1  christos   /* The high order 16 bits of a relative address, plus 1 if the contents of
   1722  1.1  christos      the low 16 bits, treated as a signed number, is negative.  */
   1723  1.1  christos   HOWTO (R_PPC_REL16_HA,	/* type */
   1724  1.1  christos 	 16,			/* rightshift */
   1725  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1726  1.1  christos 	 16,			/* bitsize */
   1727  1.1  christos 	 TRUE,			/* pc_relative */
   1728  1.1  christos 	 0,			/* bitpos */
   1729  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1730  1.1  christos 	 ppc_elf_addr16_ha_reloc, /* special_function */
   1731  1.1  christos 	 "R_PPC_REL16_HA",	/* name */
   1732  1.1  christos 	 FALSE,			/* partial_inplace */
   1733  1.1  christos 	 0,			/* src_mask */
   1734  1.1  christos 	 0xffff,		/* dst_mask */
   1735  1.1  christos 	 TRUE),			/* pcrel_offset */
   1736  1.1  christos 
   1737  1.1  christos   /* GNU extension to record C++ vtable hierarchy.  */
   1738  1.1  christos   HOWTO (R_PPC_GNU_VTINHERIT,	/* type */
   1739  1.1  christos 	 0,			/* rightshift */
   1740  1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1741  1.1  christos 	 0,			/* bitsize */
   1742  1.1  christos 	 FALSE,			/* pc_relative */
   1743  1.1  christos 	 0,			/* bitpos */
   1744  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1745  1.1  christos 	 NULL,			/* special_function */
   1746  1.1  christos 	 "R_PPC_GNU_VTINHERIT",	/* name */
   1747  1.1  christos 	 FALSE,			/* partial_inplace */
   1748  1.1  christos 	 0,			/* src_mask */
   1749  1.1  christos 	 0,			/* dst_mask */
   1750  1.1  christos 	 FALSE),		/* pcrel_offset */
   1751  1.1  christos 
   1752  1.1  christos   /* GNU extension to record C++ vtable member usage.  */
   1753  1.1  christos   HOWTO (R_PPC_GNU_VTENTRY,	/* type */
   1754  1.1  christos 	 0,			/* rightshift */
   1755  1.1  christos 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
   1756  1.1  christos 	 0,			/* bitsize */
   1757  1.1  christos 	 FALSE,			/* pc_relative */
   1758  1.1  christos 	 0,			/* bitpos */
   1759  1.1  christos 	 complain_overflow_dont, /* complain_on_overflow */
   1760  1.1  christos 	 NULL,			/* special_function */
   1761  1.1  christos 	 "R_PPC_GNU_VTENTRY",	/* name */
   1762  1.1  christos 	 FALSE,			/* partial_inplace */
   1763  1.1  christos 	 0,			/* src_mask */
   1764  1.1  christos 	 0,			/* dst_mask */
   1765  1.1  christos 	 FALSE),		/* pcrel_offset */
   1766  1.1  christos 
   1767  1.1  christos   /* Phony reloc to handle AIX style TOC entries.  */
   1768  1.1  christos   HOWTO (R_PPC_TOC16,		/* type */
   1769  1.1  christos 	 0,			/* rightshift */
   1770  1.1  christos 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
   1771  1.1  christos 	 16,			/* bitsize */
   1772  1.1  christos 	 FALSE,			/* pc_relative */
   1773  1.1  christos 	 0,			/* bitpos */
   1774  1.1  christos 	 complain_overflow_signed, /* complain_on_overflow */
   1775  1.1  christos 	 bfd_elf_generic_reloc,	/* special_function */
   1776  1.1  christos 	 "R_PPC_TOC16",		/* name */
   1777  1.1  christos 	 FALSE,			/* partial_inplace */
   1778  1.1  christos 	 0,			/* src_mask */
   1779  1.1  christos 	 0xffff,		/* dst_mask */
   1780  1.1  christos 	 FALSE),		/* pcrel_offset */
   1781  1.1  christos };
   1782  1.1  christos 
   1783  1.1  christos /* External 32-bit PPC structure for PRPSINFO.  This structure is
   1784  1.1  christos    ABI-defined, thus we choose to use char arrays here in order to
   1785  1.1  christos    avoid dealing with different types in different architectures.
   1786  1.1  christos 
   1787  1.1  christos    The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while
   1788  1.1  christos    most non-PPC architectures use `short int'.
   1789  1.1  christos 
   1790  1.1  christos    This structure will ultimately be written in the corefile's note
   1791  1.1  christos    section, as the PRPSINFO.  */
   1792  1.1  christos 
   1793  1.1  christos struct elf_external_ppc_linux_prpsinfo32
   1794  1.1  christos   {
   1795  1.1  christos     char pr_state;			/* Numeric process state.  */
   1796  1.1  christos     char pr_sname;			/* Char for pr_state.  */
   1797  1.1  christos     char pr_zomb;			/* Zombie.  */
   1798  1.1  christos     char pr_nice;			/* Nice val.  */
   1799  1.1  christos     char pr_flag[4];			/* Flags.  */
   1800  1.1  christos     char pr_uid[4];
   1801  1.1  christos     char pr_gid[4];
   1802  1.1  christos     char pr_pid[4];
   1803  1.1  christos     char pr_ppid[4];
   1804  1.1  christos     char pr_pgrp[4];
   1805  1.1  christos     char pr_sid[4];
   1806  1.1  christos     char pr_fname[16];			/* Filename of executable.  */
   1807  1.1  christos     char pr_psargs[80];			/* Initial part of arg list.  */
   1808  1.1  christos   };
   1809  1.1  christos 
   1810  1.1  christos /* Helper macro to swap (properly handling endianess) things from the
   1811  1.1  christos    `elf_internal_prpsinfo' structure to the `elf_external_ppc_prpsinfo32'
   1812  1.1  christos    structure.
   1813  1.1  christos 
   1814  1.1  christos    Note that FROM should be a pointer, and TO should be the explicit type.  */
   1815  1.1  christos 
   1816  1.1  christos #define PPC_LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to)	      \
   1817  1.1  christos   do								      \
   1818  1.1  christos     {								      \
   1819  1.1  christos       H_PUT_8 (abfd, from->pr_state, &to.pr_state);		      \
   1820  1.1  christos       H_PUT_8 (abfd, from->pr_sname, &to.pr_sname);		      \
   1821  1.1  christos       H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb);		      \
   1822  1.1  christos       H_PUT_8 (abfd, from->pr_nice, &to.pr_nice);		      \
   1823  1.1  christos       H_PUT_32 (abfd, from->pr_flag, to.pr_flag);		      \
   1824  1.1  christos       H_PUT_32 (abfd, from->pr_uid, to.pr_uid);			      \
   1825  1.1  christos       H_PUT_32 (abfd, from->pr_gid, to.pr_gid);			      \
   1826  1.1  christos       H_PUT_32 (abfd, from->pr_pid, to.pr_pid);			      \
   1827  1.1  christos       H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid);		      \
   1828  1.1  christos       H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp);		      \
   1829  1.1  christos       H_PUT_32 (abfd, from->pr_sid, to.pr_sid);			      \
   1830  1.1  christos       strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname));    \
   1831  1.1  christos       strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs)); \
   1832  1.1  christos     } while (0)
   1833  1.1  christos 
   1834  1.1  christos 
   1835  1.1  christos /* Initialize the ppc_elf_howto_table, so that linear accesses can be done.  */
   1837  1.1  christos 
   1838  1.1  christos static void
   1839  1.1  christos ppc_elf_howto_init (void)
   1840  1.1  christos {
   1841  1.1  christos   unsigned int i, type;
   1842  1.1  christos 
   1843  1.1  christos   for (i = 0;
   1844  1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   1845  1.1  christos        i++)
   1846  1.1  christos     {
   1847  1.1  christos       type = ppc_elf_howto_raw[i].type;
   1848  1.1  christos       if (type >= (sizeof (ppc_elf_howto_table)
   1849  1.1  christos 		   / sizeof (ppc_elf_howto_table[0])))
   1850  1.1  christos 	abort ();
   1851  1.1  christos       ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i];
   1852  1.1  christos     }
   1853  1.1  christos }
   1854  1.1  christos 
   1855  1.1  christos static reloc_howto_type *
   1856  1.1  christos ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   1857  1.1  christos 			   bfd_reloc_code_real_type code)
   1858  1.1  christos {
   1859  1.1  christos   enum elf_ppc_reloc_type r;
   1860  1.1  christos 
   1861  1.1  christos   /* Initialize howto table if not already done.  */
   1862  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   1863  1.1  christos     ppc_elf_howto_init ();
   1864  1.1  christos 
   1865  1.1  christos   switch (code)
   1866  1.1  christos     {
   1867  1.1  christos     default:
   1868  1.1  christos       return NULL;
   1869  1.1  christos 
   1870  1.1  christos     case BFD_RELOC_NONE:		r = R_PPC_NONE;			break;
   1871  1.1  christos     case BFD_RELOC_32:			r = R_PPC_ADDR32;		break;
   1872  1.1  christos     case BFD_RELOC_PPC_BA26:		r = R_PPC_ADDR24;		break;
   1873  1.1  christos     case BFD_RELOC_PPC64_ADDR16_DS:
   1874  1.1  christos     case BFD_RELOC_16:			r = R_PPC_ADDR16;		break;
   1875  1.1  christos     case BFD_RELOC_PPC64_ADDR16_LO_DS:
   1876  1.1  christos     case BFD_RELOC_LO16:		r = R_PPC_ADDR16_LO;		break;
   1877  1.1  christos     case BFD_RELOC_HI16:		r = R_PPC_ADDR16_HI;		break;
   1878  1.1  christos     case BFD_RELOC_HI16_S:		r = R_PPC_ADDR16_HA;		break;
   1879  1.1  christos     case BFD_RELOC_PPC_BA16:		r = R_PPC_ADDR14;		break;
   1880  1.1  christos     case BFD_RELOC_PPC_BA16_BRTAKEN:	r = R_PPC_ADDR14_BRTAKEN;	break;
   1881  1.1  christos     case BFD_RELOC_PPC_BA16_BRNTAKEN:	r = R_PPC_ADDR14_BRNTAKEN;	break;
   1882  1.1  christos     case BFD_RELOC_PPC_B26:		r = R_PPC_REL24;		break;
   1883  1.1  christos     case BFD_RELOC_PPC_B16:		r = R_PPC_REL14;		break;
   1884  1.1  christos     case BFD_RELOC_PPC_B16_BRTAKEN:	r = R_PPC_REL14_BRTAKEN;	break;
   1885  1.1  christos     case BFD_RELOC_PPC_B16_BRNTAKEN:	r = R_PPC_REL14_BRNTAKEN;	break;
   1886  1.1  christos     case BFD_RELOC_PPC64_GOT16_DS:
   1887  1.1  christos     case BFD_RELOC_16_GOTOFF:		r = R_PPC_GOT16;		break;
   1888  1.1  christos     case BFD_RELOC_PPC64_GOT16_LO_DS:
   1889  1.1  christos     case BFD_RELOC_LO16_GOTOFF:		r = R_PPC_GOT16_LO;		break;
   1890  1.1  christos     case BFD_RELOC_HI16_GOTOFF:		r = R_PPC_GOT16_HI;		break;
   1891  1.1  christos     case BFD_RELOC_HI16_S_GOTOFF:	r = R_PPC_GOT16_HA;		break;
   1892  1.1  christos     case BFD_RELOC_24_PLT_PCREL:	r = R_PPC_PLTREL24;		break;
   1893  1.1  christos     case BFD_RELOC_PPC_COPY:		r = R_PPC_COPY;			break;
   1894  1.1  christos     case BFD_RELOC_PPC_GLOB_DAT:	r = R_PPC_GLOB_DAT;		break;
   1895  1.1  christos     case BFD_RELOC_PPC_LOCAL24PC:	r = R_PPC_LOCAL24PC;		break;
   1896  1.1  christos     case BFD_RELOC_32_PCREL:		r = R_PPC_REL32;		break;
   1897  1.1  christos     case BFD_RELOC_32_PLTOFF:		r = R_PPC_PLT32;		break;
   1898  1.1  christos     case BFD_RELOC_32_PLT_PCREL:	r = R_PPC_PLTREL32;		break;
   1899  1.1  christos     case BFD_RELOC_PPC64_PLT16_LO_DS:
   1900  1.1  christos     case BFD_RELOC_LO16_PLTOFF:		r = R_PPC_PLT16_LO;		break;
   1901  1.1  christos     case BFD_RELOC_HI16_PLTOFF:		r = R_PPC_PLT16_HI;		break;
   1902  1.1  christos     case BFD_RELOC_HI16_S_PLTOFF:	r = R_PPC_PLT16_HA;		break;
   1903  1.1  christos     case BFD_RELOC_GPREL16:		r = R_PPC_SDAREL16;		break;
   1904  1.1  christos     case BFD_RELOC_PPC64_SECTOFF_DS:
   1905  1.1  christos     case BFD_RELOC_16_BASEREL:		r = R_PPC_SECTOFF;		break;
   1906  1.1  christos     case BFD_RELOC_PPC64_SECTOFF_LO_DS:
   1907  1.1  christos     case BFD_RELOC_LO16_BASEREL:	r = R_PPC_SECTOFF_LO;		break;
   1908  1.1  christos     case BFD_RELOC_HI16_BASEREL:	r = R_PPC_SECTOFF_HI;		break;
   1909  1.1  christos     case BFD_RELOC_HI16_S_BASEREL:	r = R_PPC_SECTOFF_HA;		break;
   1910  1.1  christos     case BFD_RELOC_CTOR:		r = R_PPC_ADDR32;		break;
   1911  1.1  christos     case BFD_RELOC_PPC64_TOC16_DS:
   1912  1.1  christos     case BFD_RELOC_PPC_TOC16:		r = R_PPC_TOC16;		break;
   1913  1.1  christos     case BFD_RELOC_PPC_TLS:		r = R_PPC_TLS;			break;
   1914  1.1  christos     case BFD_RELOC_PPC_TLSGD:		r = R_PPC_TLSGD;		break;
   1915  1.1  christos     case BFD_RELOC_PPC_TLSLD:		r = R_PPC_TLSLD;		break;
   1916  1.1  christos     case BFD_RELOC_PPC_DTPMOD:		r = R_PPC_DTPMOD32;		break;
   1917  1.1  christos     case BFD_RELOC_PPC64_TPREL16_DS:
   1918  1.1  christos     case BFD_RELOC_PPC_TPREL16:		r = R_PPC_TPREL16;		break;
   1919  1.1  christos     case BFD_RELOC_PPC64_TPREL16_LO_DS:
   1920  1.1  christos     case BFD_RELOC_PPC_TPREL16_LO:	r = R_PPC_TPREL16_LO;		break;
   1921  1.1  christos     case BFD_RELOC_PPC_TPREL16_HI:	r = R_PPC_TPREL16_HI;		break;
   1922  1.1  christos     case BFD_RELOC_PPC_TPREL16_HA:	r = R_PPC_TPREL16_HA;		break;
   1923  1.1  christos     case BFD_RELOC_PPC_TPREL:		r = R_PPC_TPREL32;		break;
   1924  1.1  christos     case BFD_RELOC_PPC64_DTPREL16_DS:
   1925  1.1  christos     case BFD_RELOC_PPC_DTPREL16:	r = R_PPC_DTPREL16;		break;
   1926  1.1  christos     case BFD_RELOC_PPC64_DTPREL16_LO_DS:
   1927  1.1  christos     case BFD_RELOC_PPC_DTPREL16_LO:	r = R_PPC_DTPREL16_LO;		break;
   1928  1.1  christos     case BFD_RELOC_PPC_DTPREL16_HI:	r = R_PPC_DTPREL16_HI;		break;
   1929  1.1  christos     case BFD_RELOC_PPC_DTPREL16_HA:	r = R_PPC_DTPREL16_HA;		break;
   1930  1.1  christos     case BFD_RELOC_PPC_DTPREL:		r = R_PPC_DTPREL32;		break;
   1931  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16:	r = R_PPC_GOT_TLSGD16;		break;
   1932  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_LO:	r = R_PPC_GOT_TLSGD16_LO;	break;
   1933  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HI:	r = R_PPC_GOT_TLSGD16_HI;	break;
   1934  1.1  christos     case BFD_RELOC_PPC_GOT_TLSGD16_HA:	r = R_PPC_GOT_TLSGD16_HA;	break;
   1935  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16:	r = R_PPC_GOT_TLSLD16;		break;
   1936  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_LO:	r = R_PPC_GOT_TLSLD16_LO;	break;
   1937  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HI:	r = R_PPC_GOT_TLSLD16_HI;	break;
   1938  1.1  christos     case BFD_RELOC_PPC_GOT_TLSLD16_HA:	r = R_PPC_GOT_TLSLD16_HA;	break;
   1939  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16:	r = R_PPC_GOT_TPREL16;		break;
   1940  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_LO:	r = R_PPC_GOT_TPREL16_LO;	break;
   1941  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HI:	r = R_PPC_GOT_TPREL16_HI;	break;
   1942  1.1  christos     case BFD_RELOC_PPC_GOT_TPREL16_HA:	r = R_PPC_GOT_TPREL16_HA;	break;
   1943  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16:	r = R_PPC_GOT_DTPREL16;		break;
   1944  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_LO:	r = R_PPC_GOT_DTPREL16_LO;	break;
   1945  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HI:	r = R_PPC_GOT_DTPREL16_HI;	break;
   1946  1.1  christos     case BFD_RELOC_PPC_GOT_DTPREL16_HA:	r = R_PPC_GOT_DTPREL16_HA;	break;
   1947  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR32:	r = R_PPC_EMB_NADDR32;		break;
   1948  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16:	r = R_PPC_EMB_NADDR16;		break;
   1949  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_LO:	r = R_PPC_EMB_NADDR16_LO;	break;
   1950  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HI:	r = R_PPC_EMB_NADDR16_HI;	break;
   1951  1.1  christos     case BFD_RELOC_PPC_EMB_NADDR16_HA:	r = R_PPC_EMB_NADDR16_HA;	break;
   1952  1.1  christos     case BFD_RELOC_PPC_EMB_SDAI16:	r = R_PPC_EMB_SDAI16;		break;
   1953  1.1  christos     case BFD_RELOC_PPC_EMB_SDA2I16:	r = R_PPC_EMB_SDA2I16;		break;
   1954  1.1  christos     case BFD_RELOC_PPC_EMB_SDA2REL:	r = R_PPC_EMB_SDA2REL;		break;
   1955  1.1  christos     case BFD_RELOC_PPC_EMB_SDA21:	r = R_PPC_EMB_SDA21;		break;
   1956  1.1  christos     case BFD_RELOC_PPC_EMB_MRKREF:	r = R_PPC_EMB_MRKREF;		break;
   1957  1.1  christos     case BFD_RELOC_PPC_EMB_RELSEC16:	r = R_PPC_EMB_RELSEC16;		break;
   1958  1.1  christos     case BFD_RELOC_PPC_EMB_RELST_LO:	r = R_PPC_EMB_RELST_LO;		break;
   1959  1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HI:	r = R_PPC_EMB_RELST_HI;		break;
   1960  1.1  christos     case BFD_RELOC_PPC_EMB_RELST_HA:	r = R_PPC_EMB_RELST_HA;		break;
   1961  1.1  christos     case BFD_RELOC_PPC_EMB_BIT_FLD:	r = R_PPC_EMB_BIT_FLD;		break;
   1962  1.1  christos     case BFD_RELOC_PPC_EMB_RELSDA:	r = R_PPC_EMB_RELSDA;		break;
   1963  1.1  christos     case BFD_RELOC_PPC_VLE_REL8:	r = R_PPC_VLE_REL8;		break;
   1964  1.1  christos     case BFD_RELOC_PPC_VLE_REL15:	r = R_PPC_VLE_REL15;		break;
   1965  1.1  christos     case BFD_RELOC_PPC_VLE_REL24:	r = R_PPC_VLE_REL24;		break;
   1966  1.1  christos     case BFD_RELOC_PPC_VLE_LO16A:	r = R_PPC_VLE_LO16A;		break;
   1967  1.1  christos     case BFD_RELOC_PPC_VLE_LO16D:	r = R_PPC_VLE_LO16D;		break;
   1968  1.1  christos     case BFD_RELOC_PPC_VLE_HI16A:	r = R_PPC_VLE_HI16A;		break;
   1969  1.1  christos     case BFD_RELOC_PPC_VLE_HI16D:	r = R_PPC_VLE_HI16D;		break;
   1970  1.1  christos     case BFD_RELOC_PPC_VLE_HA16A:	r = R_PPC_VLE_HA16A;		break;
   1971  1.1  christos     case BFD_RELOC_PPC_VLE_HA16D:	r = R_PPC_VLE_HA16D;		break;
   1972  1.1  christos     case BFD_RELOC_PPC_VLE_SDA21:	r = R_PPC_VLE_SDA21;		break;
   1973  1.1  christos     case BFD_RELOC_PPC_VLE_SDA21_LO:	r = R_PPC_VLE_SDA21_LO;		break;
   1974  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
   1975  1.1  christos       r = R_PPC_VLE_SDAREL_LO16A;
   1976  1.1  christos       break;
   1977  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
   1978  1.1  christos       r = R_PPC_VLE_SDAREL_LO16D;
   1979  1.1  christos       break;
   1980  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
   1981  1.1  christos       r = R_PPC_VLE_SDAREL_HI16A;
   1982  1.1  christos       break;
   1983  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
   1984  1.1  christos       r = R_PPC_VLE_SDAREL_HI16D;
   1985  1.1  christos       break;
   1986  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
   1987  1.1  christos       r = R_PPC_VLE_SDAREL_HA16A;
   1988  1.1  christos       break;
   1989  1.1  christos     case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
   1990  1.1  christos       r = R_PPC_VLE_SDAREL_HA16D;
   1991  1.1  christos       break;
   1992  1.1  christos     case BFD_RELOC_16_PCREL:		r = R_PPC_REL16;		break;
   1993  1.1  christos     case BFD_RELOC_LO16_PCREL:		r = R_PPC_REL16_LO;		break;
   1994  1.1  christos     case BFD_RELOC_HI16_PCREL:		r = R_PPC_REL16_HI;		break;
   1995  1.1  christos     case BFD_RELOC_HI16_S_PCREL:	r = R_PPC_REL16_HA;		break;
   1996  1.1  christos     case BFD_RELOC_VTABLE_INHERIT:	r = R_PPC_GNU_VTINHERIT;	break;
   1997  1.1  christos     case BFD_RELOC_VTABLE_ENTRY:	r = R_PPC_GNU_VTENTRY;		break;
   1998  1.1  christos     }
   1999  1.1  christos 
   2000  1.1  christos   return ppc_elf_howto_table[r];
   2001  1.1  christos };
   2002  1.1  christos 
   2003  1.1  christos static reloc_howto_type *
   2004  1.1  christos ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
   2005  1.1  christos 			   const char *r_name)
   2006  1.1  christos {
   2007  1.1  christos   unsigned int i;
   2008  1.1  christos 
   2009  1.1  christos   for (i = 0;
   2010  1.1  christos        i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]);
   2011  1.1  christos        i++)
   2012  1.1  christos     if (ppc_elf_howto_raw[i].name != NULL
   2013  1.1  christos 	&& strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0)
   2014  1.1  christos       return &ppc_elf_howto_raw[i];
   2015  1.1  christos 
   2016  1.1  christos   return NULL;
   2017  1.1  christos }
   2018  1.1  christos 
   2019  1.1  christos /* Set the howto pointer for a PowerPC ELF reloc.  */
   2020  1.1  christos 
   2021  1.1  christos static void
   2022  1.1  christos ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
   2023  1.1  christos 		       arelent *cache_ptr,
   2024  1.1  christos 		       Elf_Internal_Rela *dst)
   2025  1.1  christos {
   2026  1.1  christos   /* Initialize howto table if not already done.  */
   2027  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   2028  1.1  christos     ppc_elf_howto_init ();
   2029  1.1  christos 
   2030  1.1  christos   BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max);
   2031  1.1  christos   cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)];
   2032  1.1  christos 
   2033  1.1  christos   /* Just because the above assert didn't trigger doesn't mean that
   2034  1.1  christos      ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation.  */
   2035  1.1  christos   if (!cache_ptr->howto)
   2036  1.1  christos     {
   2037  1.1  christos       (*_bfd_error_handler) (_("%B: invalid relocation type %d"),
   2038  1.1  christos                              abfd, ELF32_R_TYPE (dst->r_info));
   2039  1.1  christos       bfd_set_error (bfd_error_bad_value);
   2040  1.1  christos 
   2041  1.1  christos       cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE];
   2042  1.1  christos     }
   2043  1.1  christos }
   2044  1.1  christos 
   2045  1.1  christos /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs.  */
   2046  1.1  christos 
   2047  1.1  christos static bfd_reloc_status_type
   2048  1.1  christos ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED,
   2049  1.1  christos 			 arelent *reloc_entry,
   2050  1.1  christos 			 asymbol *symbol,
   2051  1.1  christos 			 void *data ATTRIBUTE_UNUSED,
   2052  1.1  christos 			 asection *input_section,
   2053  1.1  christos 			 bfd *output_bfd,
   2054  1.1  christos 			 char **error_message ATTRIBUTE_UNUSED)
   2055  1.1  christos {
   2056  1.1  christos   bfd_vma relocation;
   2057  1.1  christos 
   2058  1.1  christos   if (output_bfd != NULL)
   2059  1.1  christos     {
   2060  1.1  christos       reloc_entry->address += input_section->output_offset;
   2061  1.1  christos       return bfd_reloc_ok;
   2062  1.1  christos     }
   2063  1.1  christos 
   2064  1.1  christos   if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
   2065  1.1  christos     return bfd_reloc_outofrange;
   2066  1.1  christos 
   2067  1.1  christos   if (bfd_is_com_section (symbol->section))
   2068  1.1  christos     relocation = 0;
   2069  1.1  christos   else
   2070  1.1  christos     relocation = symbol->value;
   2071  1.1  christos 
   2072  1.1  christos   relocation += symbol->section->output_section->vma;
   2073  1.1  christos   relocation += symbol->section->output_offset;
   2074  1.1  christos   relocation += reloc_entry->addend;
   2075  1.1  christos   if (reloc_entry->howto->pc_relative)
   2076  1.1  christos     relocation -= reloc_entry->address;
   2077  1.1  christos 
   2078  1.1  christos   reloc_entry->addend += (relocation & 0x8000) << 1;
   2079  1.1  christos 
   2080  1.1  christos   return bfd_reloc_continue;
   2081  1.1  christos }
   2082  1.1  christos 
   2083  1.1  christos static bfd_reloc_status_type
   2084  1.1  christos ppc_elf_unhandled_reloc (bfd *abfd,
   2085  1.1  christos 			 arelent *reloc_entry,
   2086  1.1  christos 			 asymbol *symbol,
   2087  1.1  christos 			 void *data,
   2088  1.1  christos 			 asection *input_section,
   2089  1.1  christos 			 bfd *output_bfd,
   2090  1.1  christos 			 char **error_message)
   2091  1.1  christos {
   2092  1.1  christos   /* If this is a relocatable link (output_bfd test tells us), just
   2093  1.1  christos      call the generic function.  Any adjustment will be done at final
   2094  1.1  christos      link time.  */
   2095  1.1  christos   if (output_bfd != NULL)
   2096  1.1  christos     return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
   2097  1.1  christos 				  input_section, output_bfd, error_message);
   2098  1.1  christos 
   2099  1.1  christos   if (error_message != NULL)
   2100  1.1  christos     {
   2101  1.1  christos       static char buf[60];
   2102  1.1  christos       sprintf (buf, _("generic linker can't handle %s"),
   2103  1.1  christos 	       reloc_entry->howto->name);
   2104  1.1  christos       *error_message = buf;
   2105  1.1  christos     }
   2106  1.1  christos   return bfd_reloc_dangerous;
   2107  1.1  christos }
   2108  1.1  christos 
   2109  1.1  christos /* Sections created by the linker.  */
   2111  1.1  christos 
   2112  1.1  christos typedef struct elf_linker_section
   2113  1.1  christos {
   2114  1.1  christos   /* Pointer to the bfd section.  */
   2115  1.1  christos   asection *section;
   2116  1.1  christos   /* Section name.  */
   2117  1.1  christos   const char *name;
   2118  1.1  christos   /* Associated bss section name.  */
   2119  1.1  christos   const char *bss_name;
   2120  1.1  christos   /* Associated symbol name.  */
   2121  1.1  christos   const char *sym_name;
   2122  1.1  christos   /* Associated symbol.  */
   2123  1.1  christos   struct elf_link_hash_entry *sym;
   2124  1.1  christos } elf_linker_section_t;
   2125  1.1  christos 
   2126  1.1  christos /* Linked list of allocated pointer entries.  This hangs off of the
   2127  1.1  christos    symbol lists, and provides allows us to return different pointers,
   2128  1.1  christos    based on different addend's.  */
   2129  1.1  christos 
   2130  1.1  christos typedef struct elf_linker_section_pointers
   2131  1.1  christos {
   2132  1.1  christos   /* next allocated pointer for this symbol */
   2133  1.1  christos   struct elf_linker_section_pointers *next;
   2134  1.1  christos   /* offset of pointer from beginning of section */
   2135  1.1  christos   bfd_vma offset;
   2136  1.1  christos   /* addend used */
   2137  1.1  christos   bfd_vma addend;
   2138  1.1  christos   /* which linker section this is */
   2139  1.1  christos   elf_linker_section_t *lsect;
   2140  1.1  christos } elf_linker_section_pointers_t;
   2141  1.1  christos 
   2142  1.1  christos struct ppc_elf_obj_tdata
   2143  1.1  christos {
   2144  1.1  christos   struct elf_obj_tdata elf;
   2145  1.1  christos 
   2146  1.1  christos   /* A mapping from local symbols to offsets into the various linker
   2147  1.1  christos      sections added.  This is index by the symbol index.  */
   2148  1.1  christos   elf_linker_section_pointers_t **linker_section_pointers;
   2149  1.1  christos 
   2150  1.1  christos   /* Flags used to auto-detect plt type.  */
   2151  1.1  christos   unsigned int makes_plt_call : 1;
   2152  1.1  christos   unsigned int has_rel16 : 1;
   2153  1.1  christos };
   2154  1.1  christos 
   2155  1.1  christos #define ppc_elf_tdata(bfd) \
   2156  1.1  christos   ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any)
   2157  1.1  christos 
   2158  1.1  christos #define elf_local_ptr_offsets(bfd) \
   2159  1.1  christos   (ppc_elf_tdata (bfd)->linker_section_pointers)
   2160  1.1  christos 
   2161  1.1  christos #define is_ppc_elf(bfd) \
   2162  1.1  christos   (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
   2163  1.1  christos    && elf_object_id (bfd) == PPC32_ELF_DATA)
   2164  1.1  christos 
   2165  1.1  christos /* Override the generic function because we store some extras.  */
   2166  1.1  christos 
   2167  1.1  christos static bfd_boolean
   2168  1.1  christos ppc_elf_mkobject (bfd *abfd)
   2169  1.1  christos {
   2170  1.1  christos   return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata),
   2171  1.1  christos 				  PPC32_ELF_DATA);
   2172  1.1  christos }
   2173  1.1  christos 
   2174  1.1  christos /* Fix bad default arch selected for a 32 bit input bfd when the
   2175  1.1  christos    default is 64 bit.  */
   2176  1.1  christos 
   2177  1.1  christos static bfd_boolean
   2178  1.1  christos ppc_elf_object_p (bfd *abfd)
   2179  1.1  christos {
   2180  1.1  christos   if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64)
   2181  1.1  christos     {
   2182  1.1  christos       Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
   2183  1.1  christos 
   2184  1.1  christos       if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32)
   2185  1.1  christos 	{
   2186  1.1  christos 	  /* Relies on arch after 64 bit default being 32 bit default.  */
   2187  1.1  christos 	  abfd->arch_info = abfd->arch_info->next;
   2188  1.1  christos 	  BFD_ASSERT (abfd->arch_info->bits_per_word == 32);
   2189  1.1  christos 	}
   2190  1.1  christos     }
   2191  1.1  christos   return TRUE;
   2192  1.1  christos }
   2193  1.1  christos 
   2194  1.1  christos /* Function to set whether a module needs the -mrelocatable bit set.  */
   2195  1.1  christos 
   2196  1.1  christos static bfd_boolean
   2197  1.1  christos ppc_elf_set_private_flags (bfd *abfd, flagword flags)
   2198  1.1  christos {
   2199  1.1  christos   BFD_ASSERT (!elf_flags_init (abfd)
   2200  1.1  christos 	      || elf_elfheader (abfd)->e_flags == flags);
   2201  1.1  christos 
   2202  1.1  christos   elf_elfheader (abfd)->e_flags = flags;
   2203  1.1  christos   elf_flags_init (abfd) = TRUE;
   2204  1.1  christos   return TRUE;
   2205  1.1  christos }
   2206  1.1  christos 
   2207  1.1  christos /* Support for core dump NOTE sections.  */
   2208  1.1  christos 
   2209  1.1  christos static bfd_boolean
   2210  1.1  christos ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
   2211  1.1  christos {
   2212  1.1  christos   int offset;
   2213  1.1  christos   unsigned int size;
   2214  1.1  christos 
   2215  1.1  christos   switch (note->descsz)
   2216  1.1  christos     {
   2217  1.1  christos     default:
   2218  1.1  christos       return FALSE;
   2219  1.1  christos 
   2220  1.1  christos     case 268:		/* Linux/PPC.  */
   2221  1.1  christos       /* pr_cursig */
   2222  1.1  christos       elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
   2223  1.1  christos 
   2224  1.1  christos       /* pr_pid */
   2225  1.1  christos       elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
   2226  1.1  christos 
   2227  1.1  christos       /* pr_reg */
   2228  1.1  christos       offset = 72;
   2229  1.1  christos       size = 192;
   2230  1.1  christos 
   2231  1.1  christos       break;
   2232  1.1  christos     }
   2233  1.1  christos 
   2234  1.1  christos   /* Make a ".reg/999" section.  */
   2235  1.1  christos   return _bfd_elfcore_make_pseudosection (abfd, ".reg",
   2236  1.1  christos 					  size, note->descpos + offset);
   2237  1.1  christos }
   2238  1.1  christos 
   2239  1.1  christos static bfd_boolean
   2240  1.1  christos ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
   2241  1.1  christos {
   2242  1.1  christos   switch (note->descsz)
   2243  1.1  christos     {
   2244  1.1  christos     default:
   2245  1.1  christos       return FALSE;
   2246  1.1  christos 
   2247  1.1  christos     case 128:		/* Linux/PPC elf_prpsinfo.  */
   2248  1.1  christos       elf_tdata (abfd)->core->pid
   2249  1.1  christos 	= bfd_get_32 (abfd, note->descdata + 16);
   2250  1.1  christos       elf_tdata (abfd)->core->program
   2251  1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
   2252  1.1  christos       elf_tdata (abfd)->core->command
   2253  1.1  christos 	= _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
   2254  1.1  christos     }
   2255  1.1  christos 
   2256  1.1  christos   /* Note that for some reason, a spurious space is tacked
   2257  1.1  christos      onto the end of the args in some (at least one anyway)
   2258  1.1  christos      implementations, so strip it off if it exists.  */
   2259  1.1  christos 
   2260  1.1  christos   {
   2261  1.1  christos     char *command = elf_tdata (abfd)->core->command;
   2262  1.1  christos     int n = strlen (command);
   2263  1.1  christos 
   2264  1.1  christos     if (0 < n && command[n - 1] == ' ')
   2265  1.1  christos       command[n - 1] = '\0';
   2266  1.1  christos   }
   2267  1.1  christos 
   2268  1.1  christos   return TRUE;
   2269  1.1  christos }
   2270  1.1  christos 
   2271  1.1  christos char *
   2272  1.1  christos elfcore_write_ppc_linux_prpsinfo32 (bfd *abfd, char *buf, int *bufsiz,
   2273  1.1  christos 				      const struct elf_internal_linux_prpsinfo *prpsinfo)
   2274  1.1  christos {
   2275  1.1  christos   struct elf_external_ppc_linux_prpsinfo32 data;
   2276  1.1  christos 
   2277  1.1  christos   memset (&data, 0, sizeof (data));
   2278  1.1  christos   PPC_LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data);
   2279  1.1  christos 
   2280  1.1  christos   return elfcore_write_note (abfd, buf, bufsiz,
   2281  1.1  christos 			     "CORE", NT_PRPSINFO, &data, sizeof (data));
   2282  1.1  christos }
   2283  1.1  christos 
   2284  1.1  christos static char *
   2285  1.1  christos ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...)
   2286  1.1  christos {
   2287  1.1  christos   switch (note_type)
   2288  1.1  christos     {
   2289  1.1  christos     default:
   2290  1.1  christos       return NULL;
   2291  1.1  christos 
   2292  1.1  christos     case NT_PRPSINFO:
   2293  1.1  christos       {
   2294  1.1  christos 	char data[128];
   2295  1.1  christos 	va_list ap;
   2296  1.1  christos 
   2297  1.1  christos 	va_start (ap, note_type);
   2298  1.1  christos 	memset (data, 0, sizeof (data));
   2299  1.1  christos 	strncpy (data + 32, va_arg (ap, const char *), 16);
   2300  1.1  christos 	strncpy (data + 48, va_arg (ap, const char *), 80);
   2301  1.1  christos 	va_end (ap);
   2302  1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2303  1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2304  1.1  christos       }
   2305  1.1  christos 
   2306  1.1  christos     case NT_PRSTATUS:
   2307  1.1  christos       {
   2308  1.1  christos 	char data[268];
   2309  1.1  christos 	va_list ap;
   2310  1.1  christos 	long pid;
   2311  1.1  christos 	int cursig;
   2312  1.1  christos 	const void *greg;
   2313  1.1  christos 
   2314  1.1  christos 	va_start (ap, note_type);
   2315  1.1  christos 	memset (data, 0, 72);
   2316  1.1  christos 	pid = va_arg (ap, long);
   2317  1.1  christos 	bfd_put_32 (abfd, pid, data + 24);
   2318  1.1  christos 	cursig = va_arg (ap, int);
   2319  1.1  christos 	bfd_put_16 (abfd, cursig, data + 12);
   2320  1.1  christos 	greg = va_arg (ap, const void *);
   2321  1.1  christos 	memcpy (data + 72, greg, 192);
   2322  1.1  christos 	memset (data + 264, 0, 4);
   2323  1.1  christos 	va_end (ap);
   2324  1.1  christos 	return elfcore_write_note (abfd, buf, bufsiz,
   2325  1.1  christos 				   "CORE", note_type, data, sizeof (data));
   2326  1.1  christos       }
   2327  1.1  christos     }
   2328  1.1  christos }
   2329  1.1  christos 
   2330  1.1  christos static flagword
   2331  1.1  christos ppc_elf_lookup_section_flags (char *flag_name)
   2332  1.1  christos {
   2333  1.1  christos 
   2334  1.1  christos   if (!strcmp (flag_name, "SHF_PPC_VLE"))
   2335  1.1  christos     return SHF_PPC_VLE;
   2336  1.1  christos 
   2337  1.1  christos   return 0;
   2338  1.1  christos }
   2339  1.1  christos 
   2340  1.1  christos /* Add the VLE flag if required.  */
   2341  1.1  christos 
   2342  1.1  christos bfd_boolean
   2343  1.1  christos ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr)
   2344  1.1  christos {
   2345  1.1  christos   if (bfd_get_mach (abfd) == bfd_mach_ppc_vle
   2346  1.1  christos       && (shdr->sh_flags & SHF_EXECINSTR) != 0)
   2347  1.1  christos     shdr->sh_flags |= SHF_PPC_VLE;
   2348  1.1  christos 
   2349  1.1  christos   return TRUE;
   2350  1.1  christos }
   2351  1.1  christos 
   2352  1.1  christos /* Return address for Ith PLT stub in section PLT, for relocation REL
   2353  1.1  christos    or (bfd_vma) -1 if it should not be included.  */
   2354  1.1  christos 
   2355  1.1  christos static bfd_vma
   2356  1.1  christos ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED,
   2357  1.1  christos 		     const asection *plt ATTRIBUTE_UNUSED,
   2358  1.1  christos 		     const arelent *rel)
   2359  1.1  christos {
   2360  1.1  christos   return rel->address;
   2361  1.1  christos }
   2362  1.1  christos 
   2363  1.1  christos /* Handle a PowerPC specific section when reading an object file.  This
   2364  1.1  christos    is called when bfd_section_from_shdr finds a section with an unknown
   2365  1.1  christos    type.  */
   2366  1.1  christos 
   2367  1.1  christos static bfd_boolean
   2368  1.1  christos ppc_elf_section_from_shdr (bfd *abfd,
   2369  1.1  christos 			   Elf_Internal_Shdr *hdr,
   2370  1.1  christos 			   const char *name,
   2371  1.1  christos 			   int shindex)
   2372  1.1  christos {
   2373  1.1  christos   asection *newsect;
   2374  1.1  christos   flagword flags;
   2375  1.1  christos 
   2376  1.1  christos   if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
   2377  1.1  christos     return FALSE;
   2378  1.1  christos 
   2379  1.1  christos   newsect = hdr->bfd_section;
   2380  1.1  christos   flags = bfd_get_section_flags (abfd, newsect);
   2381  1.1  christos   if (hdr->sh_flags & SHF_EXCLUDE)
   2382  1.1  christos     flags |= SEC_EXCLUDE;
   2383  1.1  christos 
   2384  1.1  christos   if (hdr->sh_type == SHT_ORDERED)
   2385  1.1  christos     flags |= SEC_SORT_ENTRIES;
   2386  1.1  christos 
   2387  1.1  christos   bfd_set_section_flags (abfd, newsect, flags);
   2388  1.1  christos   return TRUE;
   2389  1.1  christos }
   2390  1.1  christos 
   2391  1.1  christos /* Set up any other section flags and such that may be necessary.  */
   2392  1.1  christos 
   2393  1.1  christos static bfd_boolean
   2394  1.1  christos ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
   2395  1.1  christos 		       Elf_Internal_Shdr *shdr,
   2396  1.1  christos 		       asection *asect)
   2397  1.1  christos {
   2398  1.1  christos   if ((asect->flags & SEC_SORT_ENTRIES) != 0)
   2399  1.1  christos     shdr->sh_type = SHT_ORDERED;
   2400  1.1  christos 
   2401  1.1  christos   return TRUE;
   2402  1.1  christos }
   2403  1.1  christos 
   2404  1.1  christos /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we
   2405  1.1  christos    need to bump up the number of section headers.  */
   2406  1.1  christos 
   2407  1.1  christos static int
   2408  1.1  christos ppc_elf_additional_program_headers (bfd *abfd,
   2409  1.1  christos 				    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2410  1.1  christos {
   2411  1.1  christos   asection *s;
   2412  1.1  christos   int ret = 0;
   2413  1.1  christos 
   2414  1.1  christos   s = bfd_get_section_by_name (abfd, ".sbss2");
   2415  1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2416  1.1  christos     ++ret;
   2417  1.1  christos 
   2418  1.1  christos   s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0");
   2419  1.1  christos   if (s != NULL && (s->flags & SEC_ALLOC) != 0)
   2420  1.1  christos     ++ret;
   2421  1.1  christos 
   2422  1.1  christos   return ret;
   2423  1.1  christos }
   2424  1.1  christos 
   2425  1.1  christos /* Modify the segment map for VLE executables.  */
   2426  1.1  christos 
   2427  1.1  christos bfd_boolean
   2428  1.1  christos ppc_elf_modify_segment_map (bfd *abfd,
   2429  1.1  christos 			    struct bfd_link_info *info ATTRIBUTE_UNUSED)
   2430  1.1  christos {
   2431  1.1  christos   struct elf_segment_map *m, *n;
   2432  1.1  christos   bfd_size_type amt;
   2433  1.1  christos   unsigned int j, k;
   2434  1.1  christos   bfd_boolean sect0_vle, sectj_vle;
   2435  1.1  christos 
   2436  1.1  christos   /* At this point in the link, output sections have already been sorted by
   2437  1.1  christos      LMA and assigned to segments.  All that is left to do is to ensure
   2438  1.1  christos      there is no mixing of VLE & non-VLE sections in a text segment.
   2439  1.1  christos      If we find that case, we split the segment.
   2440  1.1  christos      We maintain the original output section order.  */
   2441  1.1  christos 
   2442  1.1  christos   for (m = elf_seg_map (abfd); m != NULL; m = m->next)
   2443  1.1  christos     {
   2444  1.1  christos       if (m->count == 0)
   2445  1.1  christos 	continue;
   2446  1.1  christos 
   2447  1.1  christos       sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0;
   2448  1.1  christos       for (j = 1; j < m->count; ++j)
   2449  1.1  christos 	{
   2450  1.1  christos 	  sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0;
   2451  1.1  christos 
   2452  1.1  christos 	  if (sectj_vle != sect0_vle)
   2453  1.1  christos 	    break;
   2454  1.1  christos         }
   2455  1.1  christos       if (j >= m->count)
   2456  1.1  christos 	continue;
   2457  1.1  christos 
   2458  1.1  christos       /* sections 0..j-1 stay in this (current) segment,
   2459  1.1  christos 	 the remainder are put in a new segment.
   2460  1.1  christos 	 The scan resumes with the new segment.  */
   2461  1.1  christos 
   2462  1.1  christos       /* Fix the new segment.  */
   2463  1.1  christos       amt = sizeof (struct elf_segment_map);
   2464  1.1  christos       amt += (m->count - j - 1) * sizeof (asection *);
   2465  1.1  christos       n = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
   2466  1.1  christos       if (n == NULL)
   2467  1.1  christos         return FALSE;
   2468  1.1  christos 
   2469  1.1  christos       n->p_type = PT_LOAD;
   2470  1.1  christos       n->p_flags = PF_X | PF_R;
   2471  1.1  christos       if (sectj_vle)
   2472  1.1  christos         n->p_flags |= PF_PPC_VLE;
   2473  1.1  christos       n->count = m->count - j;
   2474  1.1  christos       for (k = 0; k < n->count; ++k)
   2475  1.1  christos         {
   2476  1.1  christos           n->sections[k] = m->sections[j+k];
   2477  1.1  christos           m->sections[j+k] = NULL;
   2478  1.1  christos 	}
   2479  1.1  christos       n->next = m->next;
   2480  1.1  christos       m->next = n;
   2481  1.1  christos 
   2482  1.1  christos       /* Fix the current segment  */
   2483  1.1  christos       m->count = j;
   2484  1.1  christos     }
   2485  1.1  christos 
   2486  1.1  christos   return TRUE;
   2487  1.1  christos }
   2488  1.1  christos 
   2489  1.1  christos /* Add extra PPC sections -- Note, for now, make .sbss2 and
   2490  1.1  christos    .PPC.EMB.sbss0 a normal section, and not a bss section so
   2491  1.1  christos    that the linker doesn't crater when trying to make more than
   2492  1.1  christos    2 sections.  */
   2493  1.1  christos 
   2494  1.1  christos static const struct bfd_elf_special_section ppc_elf_special_sections[] =
   2495  1.1  christos {
   2496  1.1  christos   { STRING_COMMA_LEN (".plt"),             0, SHT_NOBITS,   SHF_ALLOC + SHF_EXECINSTR },
   2497  1.1  christos   { STRING_COMMA_LEN (".sbss"),           -2, SHT_NOBITS,   SHF_ALLOC + SHF_WRITE },
   2498  1.1  christos   { STRING_COMMA_LEN (".sbss2"),          -2, SHT_PROGBITS, SHF_ALLOC },
   2499  1.1  christos   { STRING_COMMA_LEN (".sdata"),          -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
   2500  1.1  christos   { STRING_COMMA_LEN (".sdata2"),         -2, SHT_PROGBITS, SHF_ALLOC },
   2501  1.1  christos   { STRING_COMMA_LEN (".tags"),            0, SHT_ORDERED,  SHF_ALLOC },
   2502  1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE,     0 },
   2503  1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sbss0"),   0, SHT_PROGBITS, SHF_ALLOC },
   2504  1.1  christos   { STRING_COMMA_LEN (".PPC.EMB.sdata0"),  0, SHT_PROGBITS, SHF_ALLOC },
   2505  1.1  christos   { NULL,                              0,  0, 0,            0 }
   2506  1.1  christos };
   2507  1.1  christos 
   2508  1.1  christos /* This is what we want for new plt/got.  */
   2509  1.1  christos static struct bfd_elf_special_section ppc_alt_plt =
   2510  1.1  christos   { STRING_COMMA_LEN (".plt"),             0, SHT_PROGBITS, SHF_ALLOC };
   2511  1.1  christos 
   2512  1.1  christos static const struct bfd_elf_special_section *
   2513  1.1  christos ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
   2514  1.1  christos {
   2515  1.1  christos   const struct bfd_elf_special_section *ssect;
   2516  1.1  christos 
   2517  1.1  christos   /* See if this is one of the special sections.  */
   2518  1.1  christos   if (sec->name == NULL)
   2519  1.1  christos     return NULL;
   2520  1.1  christos 
   2521  1.1  christos   ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections,
   2522  1.1  christos 					sec->use_rela_p);
   2523  1.1  christos   if (ssect != NULL)
   2524  1.1  christos     {
   2525  1.1  christos       if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0)
   2526  1.1  christos 	ssect = &ppc_alt_plt;
   2527  1.1  christos       return ssect;
   2528  1.1  christos     }
   2529  1.1  christos 
   2530  1.1  christos   return _bfd_elf_get_sec_type_attr (abfd, sec);
   2531  1.1  christos }
   2532  1.1  christos 
   2533  1.1  christos /* Very simple linked list structure for recording apuinfo values.  */
   2535  1.1  christos typedef struct apuinfo_list
   2536  1.1  christos {
   2537  1.1  christos   struct apuinfo_list *next;
   2538  1.1  christos   unsigned long value;
   2539  1.1  christos }
   2540  1.1  christos apuinfo_list;
   2541  1.1  christos 
   2542  1.1  christos static apuinfo_list *head;
   2543  1.1  christos static bfd_boolean apuinfo_set;
   2544  1.1  christos 
   2545  1.1  christos static void
   2546  1.1  christos apuinfo_list_init (void)
   2547  1.1  christos {
   2548  1.1  christos   head = NULL;
   2549  1.1  christos   apuinfo_set = FALSE;
   2550  1.1  christos }
   2551  1.1  christos 
   2552  1.1  christos static void
   2553  1.1  christos apuinfo_list_add (unsigned long value)
   2554  1.1  christos {
   2555  1.1  christos   apuinfo_list *entry = head;
   2556  1.1  christos 
   2557  1.1  christos   while (entry != NULL)
   2558  1.1  christos     {
   2559  1.1  christos       if (entry->value == value)
   2560  1.1  christos 	return;
   2561  1.1  christos       entry = entry->next;
   2562  1.1  christos     }
   2563  1.1  christos 
   2564  1.1  christos   entry = bfd_malloc (sizeof (* entry));
   2565  1.1  christos   if (entry == NULL)
   2566  1.1  christos     return;
   2567  1.1  christos 
   2568  1.1  christos   entry->value = value;
   2569  1.1  christos   entry->next  = head;
   2570  1.1  christos   head = entry;
   2571  1.1  christos }
   2572  1.1  christos 
   2573  1.1  christos static unsigned
   2574  1.1  christos apuinfo_list_length (void)
   2575  1.1  christos {
   2576  1.1  christos   apuinfo_list *entry;
   2577  1.1  christos   unsigned long count;
   2578  1.1  christos 
   2579  1.1  christos   for (entry = head, count = 0;
   2580  1.1  christos        entry;
   2581  1.1  christos        entry = entry->next)
   2582  1.1  christos     ++ count;
   2583  1.1  christos 
   2584  1.1  christos   return count;
   2585  1.1  christos }
   2586  1.1  christos 
   2587  1.1  christos static inline unsigned long
   2588  1.1  christos apuinfo_list_element (unsigned long number)
   2589  1.1  christos {
   2590  1.1  christos   apuinfo_list * entry;
   2591  1.1  christos 
   2592  1.1  christos   for (entry = head;
   2593  1.1  christos        entry && number --;
   2594  1.1  christos        entry = entry->next)
   2595  1.1  christos     ;
   2596  1.1  christos 
   2597  1.1  christos   return entry ? entry->value : 0;
   2598  1.1  christos }
   2599  1.1  christos 
   2600  1.1  christos static void
   2601  1.1  christos apuinfo_list_finish (void)
   2602  1.1  christos {
   2603  1.1  christos   apuinfo_list *entry;
   2604  1.1  christos 
   2605  1.1  christos   for (entry = head; entry;)
   2606  1.1  christos     {
   2607  1.1  christos       apuinfo_list *next = entry->next;
   2608  1.1  christos       free (entry);
   2609  1.1  christos       entry = next;
   2610  1.1  christos     }
   2611  1.1  christos 
   2612  1.1  christos   head = NULL;
   2613  1.1  christos }
   2614  1.1  christos 
   2615  1.1  christos #define APUINFO_SECTION_NAME	".PPC.EMB.apuinfo"
   2616  1.1  christos #define APUINFO_LABEL		"APUinfo"
   2617  1.1  christos 
   2618  1.1  christos /* Scan the input BFDs and create a linked list of
   2619  1.1  christos    the APUinfo values that will need to be emitted.  */
   2620  1.1  christos 
   2621  1.1  christos static void
   2622  1.1  christos ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info)
   2623  1.1  christos {
   2624  1.1  christos   bfd *ibfd;
   2625  1.1  christos   asection *asec;
   2626  1.1  christos   char *buffer = NULL;
   2627  1.1  christos   bfd_size_type largest_input_size = 0;
   2628  1.1  christos   unsigned i;
   2629  1.1  christos   unsigned long length;
   2630  1.1  christos   const char *error_message = NULL;
   2631  1.1  christos 
   2632  1.1  christos   if (link_info == NULL)
   2633  1.1  christos     return;
   2634  1.1  christos 
   2635  1.1  christos   apuinfo_list_init ();
   2636  1.1  christos 
   2637  1.1  christos   /* Read in the input sections contents.  */
   2638  1.1  christos   for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next)
   2639  1.1  christos     {
   2640  1.1  christos       unsigned long datum;
   2641  1.1  christos 
   2642  1.1  christos       asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME);
   2643  1.1  christos       if (asec == NULL)
   2644  1.1  christos 	continue;
   2645  1.1  christos 
   2646  1.1  christos       error_message = _("corrupt %s section in %B");
   2647  1.1  christos       length = asec->size;
   2648  1.1  christos       if (length < 20)
   2649  1.1  christos 	goto fail;
   2650  1.1  christos 
   2651  1.1  christos       apuinfo_set = TRUE;
   2652  1.1  christos       if (largest_input_size < asec->size)
   2653  1.1  christos 	{
   2654  1.1  christos 	  if (buffer)
   2655  1.1  christos 	    free (buffer);
   2656  1.1  christos 	  largest_input_size = asec->size;
   2657  1.1  christos 	  buffer = bfd_malloc (largest_input_size);
   2658  1.1  christos 	  if (!buffer)
   2659  1.1  christos 	    return;
   2660  1.1  christos 	}
   2661  1.1  christos 
   2662  1.1  christos       if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0
   2663  1.1  christos 	  || (bfd_bread (buffer, length, ibfd) != length))
   2664  1.1  christos 	{
   2665  1.1  christos 	  error_message = _("unable to read in %s section from %B");
   2666  1.1  christos 	  goto fail;
   2667  1.1  christos 	}
   2668  1.1  christos 
   2669  1.1  christos       /* Verify the contents of the header.  Note - we have to
   2670  1.1  christos 	 extract the values this way in order to allow for a
   2671  1.1  christos 	 host whose endian-ness is different from the target.  */
   2672  1.1  christos       datum = bfd_get_32 (ibfd, buffer);
   2673  1.1  christos       if (datum != sizeof APUINFO_LABEL)
   2674  1.1  christos 	goto fail;
   2675  1.1  christos 
   2676  1.1  christos       datum = bfd_get_32 (ibfd, buffer + 8);
   2677  1.1  christos       if (datum != 0x2)
   2678  1.1  christos 	goto fail;
   2679  1.1  christos 
   2680  1.1  christos       if (strcmp (buffer + 12, APUINFO_LABEL) != 0)
   2681  1.1  christos 	goto fail;
   2682  1.1  christos 
   2683  1.1  christos       /* Get the number of bytes used for apuinfo entries.  */
   2684  1.1  christos       datum = bfd_get_32 (ibfd, buffer + 4);
   2685  1.1  christos       if (datum + 20 != length)
   2686  1.1  christos 	goto fail;
   2687  1.1  christos 
   2688  1.1  christos       /* Scan the apuinfo section, building a list of apuinfo numbers.  */
   2689  1.1  christos       for (i = 0; i < datum; i += 4)
   2690  1.1  christos 	apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i));
   2691  1.1  christos     }
   2692  1.1  christos 
   2693  1.1  christos   error_message = NULL;
   2694  1.1  christos 
   2695  1.1  christos   if (apuinfo_set)
   2696  1.1  christos     {
   2697  1.1  christos       /* Compute the size of the output section.  */
   2698  1.1  christos       unsigned num_entries = apuinfo_list_length ();
   2699  1.1  christos 
   2700  1.1  christos       /* Set the output section size, if it exists.  */
   2701  1.1  christos       asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2702  1.1  christos 
   2703  1.1  christos       if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4))
   2704  1.1  christos 	{
   2705  1.1  christos 	  ibfd = abfd;
   2706  1.1  christos 	  error_message = _("warning: unable to set size of %s section in %B");
   2707  1.1  christos 	}
   2708  1.1  christos     }
   2709  1.1  christos 
   2710  1.1  christos  fail:
   2711  1.1  christos   if (buffer)
   2712  1.1  christos     free (buffer);
   2713  1.1  christos 
   2714  1.1  christos   if (error_message)
   2715  1.1  christos     (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME);
   2716  1.1  christos }
   2717  1.1  christos 
   2718  1.1  christos /* Prevent the output section from accumulating the input sections'
   2719  1.1  christos    contents.  We have already stored this in our linked list structure.  */
   2720  1.1  christos 
   2721  1.1  christos static bfd_boolean
   2722  1.1  christos ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED,
   2723  1.1  christos 		       struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
   2724  1.1  christos 		       asection *asec,
   2725  1.1  christos 		       bfd_byte *contents ATTRIBUTE_UNUSED)
   2726  1.1  christos {
   2727  1.1  christos   return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0;
   2728  1.1  christos }
   2729  1.1  christos 
   2730  1.1  christos /* Finally we can generate the output section.  */
   2731  1.1  christos 
   2732  1.1  christos static void
   2733  1.1  christos ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED)
   2734  1.1  christos {
   2735  1.1  christos   bfd_byte *buffer;
   2736  1.1  christos   asection *asec;
   2737  1.1  christos   unsigned i;
   2738  1.1  christos   unsigned num_entries;
   2739  1.1  christos   bfd_size_type length;
   2740  1.1  christos 
   2741  1.1  christos   asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME);
   2742  1.1  christos   if (asec == NULL)
   2743  1.1  christos     return;
   2744  1.1  christos 
   2745  1.1  christos   if (!apuinfo_set)
   2746  1.1  christos     return;
   2747  1.1  christos 
   2748  1.1  christos   length = asec->size;
   2749  1.1  christos   if (length < 20)
   2750  1.1  christos     return;
   2751  1.1  christos 
   2752  1.1  christos   buffer = bfd_malloc (length);
   2753  1.1  christos   if (buffer == NULL)
   2754  1.1  christos     {
   2755  1.1  christos       (*_bfd_error_handler)
   2756  1.1  christos 	(_("failed to allocate space for new APUinfo section."));
   2757  1.1  christos       return;
   2758  1.1  christos     }
   2759  1.1  christos 
   2760  1.1  christos   /* Create the apuinfo header.  */
   2761  1.1  christos   num_entries = apuinfo_list_length ();
   2762  1.1  christos   bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer);
   2763  1.1  christos   bfd_put_32 (abfd, num_entries * 4, buffer + 4);
   2764  1.1  christos   bfd_put_32 (abfd, 0x2, buffer + 8);
   2765  1.1  christos   strcpy ((char *) buffer + 12, APUINFO_LABEL);
   2766  1.1  christos 
   2767  1.1  christos   length = 20;
   2768  1.1  christos   for (i = 0; i < num_entries; i++)
   2769  1.1  christos     {
   2770  1.1  christos       bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length);
   2771  1.1  christos       length += 4;
   2772  1.1  christos     }
   2773  1.1  christos 
   2774  1.1  christos   if (length != asec->size)
   2775  1.1  christos     (*_bfd_error_handler) (_("failed to compute new APUinfo section."));
   2776  1.1  christos 
   2777  1.1  christos   if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length))
   2778  1.1  christos     (*_bfd_error_handler) (_("failed to install new APUinfo section."));
   2779  1.1  christos 
   2780  1.1  christos   free (buffer);
   2781  1.1  christos 
   2782  1.1  christos   apuinfo_list_finish ();
   2783  1.1  christos }
   2784  1.1  christos 
   2785  1.1  christos static bfd_boolean
   2787  1.1  christos is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off)
   2788  1.1  christos {
   2789  1.1  christos   bfd_byte buf[GLINK_ENTRY_SIZE];
   2790  1.1  christos 
   2791  1.1  christos   if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE))
   2792  1.1  christos     return FALSE;
   2793  1.1  christos 
   2794  1.1  christos   return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11
   2795  1.1  christos 	  && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11
   2796  1.1  christos 	  && bfd_get_32 (abfd, buf + 8) == MTCTR_11
   2797  1.1  christos 	  && bfd_get_32 (abfd, buf + 12) == BCTR);
   2798  1.1  christos }
   2799  1.1  christos 
   2800  1.1  christos static bfd_boolean
   2801  1.1  christos section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr)
   2802  1.1  christos {
   2803  1.1  christos   bfd_vma vma = *(bfd_vma *) ptr;
   2804  1.1  christos   return ((section->flags & SEC_ALLOC) != 0
   2805  1.1  christos 	  && section->vma <= vma
   2806  1.1  christos 	  && vma < section->vma + section->size);
   2807  1.1  christos }
   2808  1.1  christos 
   2809  1.1  christos static long
   2810  1.1  christos ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms,
   2811  1.1  christos 			      long dynsymcount, asymbol **dynsyms,
   2812  1.1  christos 			      asymbol **ret)
   2813  1.1  christos {
   2814  1.1  christos   bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
   2815  1.1  christos   asection *plt, *relplt, *dynamic, *glink;
   2816  1.1  christos   bfd_vma glink_vma = 0;
   2817  1.1  christos   bfd_vma resolv_vma = 0;
   2818  1.1  christos   bfd_vma stub_vma;
   2819  1.1  christos   asymbol *s;
   2820  1.1  christos   arelent *p;
   2821  1.1  christos   long count, i;
   2822  1.1  christos   size_t size;
   2823  1.1  christos   char *names;
   2824  1.1  christos   bfd_byte buf[4];
   2825  1.1  christos 
   2826  1.1  christos   *ret = NULL;
   2827  1.1  christos 
   2828  1.1  christos   if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0)
   2829  1.1  christos     return 0;
   2830  1.1  christos 
   2831  1.1  christos   if (dynsymcount <= 0)
   2832  1.1  christos     return 0;
   2833  1.1  christos 
   2834  1.1  christos   relplt = bfd_get_section_by_name (abfd, ".rela.plt");
   2835  1.1  christos   if (relplt == NULL)
   2836  1.1  christos     return 0;
   2837  1.1  christos 
   2838  1.1  christos   plt = bfd_get_section_by_name (abfd, ".plt");
   2839  1.1  christos   if (plt == NULL)
   2840  1.1  christos     return 0;
   2841  1.1  christos 
   2842  1.1  christos   /* Call common code to handle old-style executable PLTs.  */
   2843  1.1  christos   if (elf_section_flags (plt) & SHF_EXECINSTR)
   2844  1.1  christos     return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms,
   2845  1.1  christos 					  dynsymcount, dynsyms, ret);
   2846  1.1  christos 
   2847  1.1  christos   /* If this object was prelinked, the prelinker stored the address
   2848  1.1  christos      of .glink at got[1].  If it wasn't prelinked, got[1] will be zero.  */
   2849  1.1  christos   dynamic = bfd_get_section_by_name (abfd, ".dynamic");
   2850  1.1  christos   if (dynamic != NULL)
   2851  1.1  christos     {
   2852  1.1  christos       bfd_byte *dynbuf, *extdyn, *extdynend;
   2853  1.1  christos       size_t extdynsize;
   2854  1.1  christos       void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *);
   2855  1.1  christos 
   2856  1.1  christos       if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf))
   2857  1.1  christos 	return -1;
   2858  1.1  christos 
   2859  1.1  christos       extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn;
   2860  1.1  christos       swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in;
   2861  1.1  christos 
   2862  1.1  christos       extdyn = dynbuf;
   2863  1.1  christos       extdynend = extdyn + dynamic->size;
   2864  1.1  christos       for (; extdyn < extdynend; extdyn += extdynsize)
   2865  1.1  christos 	{
   2866  1.1  christos 	  Elf_Internal_Dyn dyn;
   2867  1.1  christos 	  (*swap_dyn_in) (abfd, extdyn, &dyn);
   2868  1.1  christos 
   2869  1.1  christos 	  if (dyn.d_tag == DT_NULL)
   2870  1.1  christos 	    break;
   2871  1.1  christos 
   2872  1.1  christos 	  if (dyn.d_tag == DT_PPC_GOT)
   2873  1.1  christos 	    {
   2874  1.1  christos 	      unsigned int g_o_t = dyn.d_un.d_val;
   2875  1.1  christos 	      asection *got = bfd_get_section_by_name (abfd, ".got");
   2876  1.1  christos 	      if (got != NULL
   2877  1.1  christos 		  && bfd_get_section_contents (abfd, got, buf,
   2878  1.1  christos 					       g_o_t - got->vma + 4, 4))
   2879  1.1  christos 		glink_vma = bfd_get_32 (abfd, buf);
   2880  1.1  christos 	      break;
   2881  1.1  christos 	    }
   2882  1.1  christos 	}
   2883  1.1  christos       free (dynbuf);
   2884  1.1  christos     }
   2885  1.1  christos 
   2886  1.1  christos   /* Otherwise we read the first plt entry.  */
   2887  1.1  christos   if (glink_vma == 0)
   2888  1.1  christos     {
   2889  1.1  christos       if (bfd_get_section_contents (abfd, plt, buf, 0, 4))
   2890  1.1  christos 	glink_vma = bfd_get_32 (abfd, buf);
   2891  1.1  christos     }
   2892  1.1  christos 
   2893  1.1  christos   if (glink_vma == 0)
   2894  1.1  christos     return 0;
   2895  1.1  christos 
   2896  1.1  christos   /* The .glink section usually does not survive the final
   2897  1.1  christos      link; search for the section (usually .text) where the
   2898  1.1  christos      glink stubs now reside.  */
   2899  1.1  christos   glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma);
   2900  1.1  christos   if (glink == NULL)
   2901  1.1  christos     return 0;
   2902  1.1  christos 
   2903  1.1  christos   /* Determine glink PLT resolver by reading the relative branch
   2904  1.1  christos      from the first glink stub.  */
   2905  1.1  christos   if (bfd_get_section_contents (abfd, glink, buf,
   2906  1.1  christos 				glink_vma - glink->vma, 4))
   2907  1.1  christos     {
   2908  1.1  christos       unsigned int insn = bfd_get_32 (abfd, buf);
   2909  1.1  christos 
   2910  1.1  christos       /* The first glink stub may either branch to the resolver ...  */
   2911  1.1  christos       insn ^= B;
   2912  1.1  christos       if ((insn & ~0x3fffffc) == 0)
   2913  1.1  christos 	resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000;
   2914  1.1  christos 
   2915  1.1  christos       /* ... or fall through a bunch of NOPs.  */
   2916  1.1  christos       else if ((insn ^ B ^ NOP) == 0)
   2917  1.1  christos 	for (i = 4;
   2918  1.1  christos 	     bfd_get_section_contents (abfd, glink, buf,
   2919  1.1  christos 				       glink_vma - glink->vma + i, 4);
   2920  1.1  christos 	     i += 4)
   2921  1.1  christos 	  if (bfd_get_32 (abfd, buf) != NOP)
   2922  1.1  christos 	    {
   2923  1.1  christos 	      resolv_vma = glink_vma + i;
   2924  1.1  christos 	      break;
   2925  1.1  christos 	    }
   2926  1.1  christos     }
   2927  1.1  christos 
   2928  1.1  christos   count = relplt->size / sizeof (Elf32_External_Rela);
   2929  1.1  christos   stub_vma = glink_vma - (bfd_vma) count * 16;
   2930  1.1  christos   /* If the stubs are those for -shared/-pie then we might have
   2931  1.1  christos      multiple stubs for each plt entry.  If that is the case then
   2932  1.1  christos      there is no way to associate stubs with their plt entries short
   2933  1.1  christos      of figuring out the GOT pointer value used in the stub.  */
   2934  1.1  christos   if (!is_nonpic_glink_stub (abfd, glink,
   2935  1.1  christos 			     glink_vma - GLINK_ENTRY_SIZE - glink->vma))
   2936  1.1  christos     return 0;
   2937  1.1  christos 
   2938  1.1  christos   slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
   2939  1.1  christos   if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE))
   2940  1.1  christos     return -1;
   2941  1.1  christos 
   2942  1.1  christos   size = count * sizeof (asymbol);
   2943  1.1  christos   p = relplt->relocation;
   2944  1.1  christos   for (i = 0; i < count; i++, p++)
   2945  1.1  christos     {
   2946  1.1  christos       size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt");
   2947  1.1  christos       if (p->addend != 0)
   2948  1.1  christos 	size += sizeof ("+0x") - 1 + 8;
   2949  1.1  christos     }
   2950  1.1  christos 
   2951  1.1  christos   size += sizeof (asymbol) + sizeof ("__glink");
   2952  1.1  christos 
   2953  1.1  christos   if (resolv_vma)
   2954  1.1  christos     size += sizeof (asymbol) + sizeof ("__glink_PLTresolve");
   2955  1.1  christos 
   2956  1.1  christos   s = *ret = bfd_malloc (size);
   2957  1.1  christos   if (s == NULL)
   2958  1.1  christos     return -1;
   2959  1.1  christos 
   2960  1.1  christos   names = (char *) (s + count + 1 + (resolv_vma != 0));
   2961  1.1  christos   p = relplt->relocation;
   2962  1.1  christos   for (i = 0; i < count; i++, p++)
   2963  1.1  christos     {
   2964  1.1  christos       size_t len;
   2965  1.1  christos 
   2966  1.1  christos       *s = **p->sym_ptr_ptr;
   2967  1.1  christos       /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set.  Since
   2968  1.1  christos 	 we are defining a symbol, ensure one of them is set.  */
   2969  1.1  christos       if ((s->flags & BSF_LOCAL) == 0)
   2970  1.1  christos 	s->flags |= BSF_GLOBAL;
   2971  1.1  christos       s->flags |= BSF_SYNTHETIC;
   2972  1.1  christos       s->section = glink;
   2973  1.1  christos       s->value = stub_vma - glink->vma;
   2974  1.1  christos       s->name = names;
   2975  1.1  christos       s->udata.p = NULL;
   2976  1.1  christos       len = strlen ((*p->sym_ptr_ptr)->name);
   2977  1.1  christos       memcpy (names, (*p->sym_ptr_ptr)->name, len);
   2978  1.1  christos       names += len;
   2979  1.1  christos       if (p->addend != 0)
   2980  1.1  christos 	{
   2981  1.1  christos 	  memcpy (names, "+0x", sizeof ("+0x") - 1);
   2982  1.1  christos 	  names += sizeof ("+0x") - 1;
   2983  1.1  christos 	  bfd_sprintf_vma (abfd, names, p->addend);
   2984  1.1  christos 	  names += strlen (names);
   2985  1.1  christos 	}
   2986  1.1  christos       memcpy (names, "@plt", sizeof ("@plt"));
   2987  1.1  christos       names += sizeof ("@plt");
   2988  1.1  christos       ++s;
   2989  1.1  christos       stub_vma += 16;
   2990  1.1  christos     }
   2991  1.1  christos 
   2992  1.1  christos   /* Add a symbol at the start of the glink branch table.  */
   2993  1.1  christos   memset (s, 0, sizeof *s);
   2994  1.1  christos   s->the_bfd = abfd;
   2995  1.1  christos   s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   2996  1.1  christos   s->section = glink;
   2997  1.1  christos   s->value = glink_vma - glink->vma;
   2998  1.1  christos   s->name = names;
   2999  1.1  christos   memcpy (names, "__glink", sizeof ("__glink"));
   3000  1.1  christos   names += sizeof ("__glink");
   3001  1.1  christos   s++;
   3002  1.1  christos   count++;
   3003  1.1  christos 
   3004  1.1  christos   if (resolv_vma)
   3005  1.1  christos     {
   3006  1.1  christos       /* Add a symbol for the glink PLT resolver.  */
   3007  1.1  christos       memset (s, 0, sizeof *s);
   3008  1.1  christos       s->the_bfd = abfd;
   3009  1.1  christos       s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
   3010  1.1  christos       s->section = glink;
   3011  1.1  christos       s->value = resolv_vma - glink->vma;
   3012  1.1  christos       s->name = names;
   3013  1.1  christos       memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve"));
   3014  1.1  christos       names += sizeof ("__glink_PLTresolve");
   3015  1.1  christos       s++;
   3016  1.1  christos       count++;
   3017  1.1  christos     }
   3018  1.1  christos 
   3019  1.1  christos   return count;
   3020  1.1  christos }
   3021  1.1  christos 
   3022  1.1  christos /* The following functions are specific to the ELF linker, while
   3024  1.1  christos    functions above are used generally.  They appear in this file more
   3025  1.1  christos    or less in the order in which they are called.  eg.
   3026  1.1  christos    ppc_elf_check_relocs is called early in the link process,
   3027  1.1  christos    ppc_elf_finish_dynamic_sections is one of the last functions
   3028  1.1  christos    called.  */
   3029  1.1  christos 
   3030  1.1  christos /* Track PLT entries needed for a given symbol.  We might need more
   3031  1.1  christos    than one glink entry per symbol when generating a pic binary.  */
   3032  1.1  christos struct plt_entry
   3033  1.1  christos {
   3034  1.1  christos   struct plt_entry *next;
   3035  1.1  christos 
   3036  1.1  christos   /* -fPIC uses multiple GOT sections, one per file, called ".got2".
   3037  1.1  christos      This field stores the offset into .got2 used to initialise the
   3038  1.1  christos      GOT pointer reg.  It will always be at least 32768.  (Current
   3039  1.1  christos      gcc always uses an offset of 32768, but ld -r will pack .got2
   3040  1.1  christos      sections together resulting in larger offsets).  */
   3041  1.1  christos   bfd_vma addend;
   3042  1.1  christos 
   3043  1.1  christos   /* The .got2 section.  */
   3044  1.1  christos   asection *sec;
   3045  1.1  christos 
   3046  1.1  christos   /* PLT refcount or offset.  */
   3047  1.1  christos   union
   3048  1.1  christos     {
   3049  1.1  christos       bfd_signed_vma refcount;
   3050  1.1  christos       bfd_vma offset;
   3051  1.1  christos     } plt;
   3052  1.1  christos 
   3053  1.1  christos   /* .glink stub offset.  */
   3054  1.1  christos   bfd_vma glink_offset;
   3055  1.1  christos };
   3056  1.1  christos 
   3057  1.1  christos /* Of those relocs that might be copied as dynamic relocs, this function
   3058  1.1  christos    selects those that must be copied when linking a shared library,
   3059  1.1  christos    even when the symbol is local.  */
   3060  1.1  christos 
   3061  1.1  christos static int
   3062  1.1  christos must_be_dyn_reloc (struct bfd_link_info *info,
   3063  1.1  christos 		   enum elf_ppc_reloc_type r_type)
   3064  1.1  christos {
   3065  1.1  christos   switch (r_type)
   3066  1.1  christos     {
   3067  1.1  christos     default:
   3068  1.1  christos       return 1;
   3069  1.1  christos 
   3070  1.1  christos     case R_PPC_REL24:
   3071  1.1  christos     case R_PPC_REL14:
   3072  1.1  christos     case R_PPC_REL14_BRTAKEN:
   3073  1.1  christos     case R_PPC_REL14_BRNTAKEN:
   3074  1.1  christos     case R_PPC_REL32:
   3075  1.1  christos       return 0;
   3076  1.1  christos 
   3077  1.1  christos     case R_PPC_TPREL32:
   3078  1.1  christos     case R_PPC_TPREL16:
   3079  1.1  christos     case R_PPC_TPREL16_LO:
   3080  1.1  christos     case R_PPC_TPREL16_HI:
   3081  1.1  christos     case R_PPC_TPREL16_HA:
   3082  1.1  christos       return !info->executable;
   3083  1.1  christos     }
   3084  1.1  christos }
   3085  1.1  christos 
   3086  1.1  christos /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
   3087  1.1  christos    copying dynamic variables from a shared lib into an app's dynbss
   3088  1.1  christos    section, and instead use a dynamic relocation to point into the
   3089  1.1  christos    shared lib.  */
   3090  1.1  christos #define ELIMINATE_COPY_RELOCS 1
   3091  1.1  christos 
   3092  1.1  christos /* Used to track dynamic relocations for local symbols.  */
   3093  1.1  christos struct ppc_dyn_relocs
   3094  1.1  christos {
   3095  1.1  christos   struct ppc_dyn_relocs *next;
   3096  1.1  christos 
   3097  1.1  christos   /* The input section of the reloc.  */
   3098  1.1  christos   asection *sec;
   3099  1.1  christos 
   3100  1.1  christos   /* Total number of relocs copied for the input section.  */
   3101  1.1  christos   unsigned int count : 31;
   3102  1.1  christos 
   3103  1.1  christos   /* Whether this entry is for STT_GNU_IFUNC symbols.  */
   3104  1.1  christos   unsigned int ifunc : 1;
   3105  1.1  christos };
   3106  1.1  christos 
   3107  1.1  christos /* PPC ELF linker hash entry.  */
   3108  1.1  christos 
   3109  1.1  christos struct ppc_elf_link_hash_entry
   3110  1.1  christos {
   3111  1.1  christos   struct elf_link_hash_entry elf;
   3112  1.1  christos 
   3113  1.1  christos   /* If this symbol is used in the linker created sections, the processor
   3114  1.1  christos      specific backend uses this field to map the field into the offset
   3115  1.1  christos      from the beginning of the section.  */
   3116  1.1  christos   elf_linker_section_pointers_t *linker_section_pointer;
   3117  1.1  christos 
   3118  1.1  christos   /* Track dynamic relocs copied for this symbol.  */
   3119  1.1  christos   struct elf_dyn_relocs *dyn_relocs;
   3120  1.1  christos 
   3121  1.1  christos   /* Contexts in which symbol is used in the GOT (or TOC).
   3122  1.1  christos      TLS_GD .. TLS_TLS bits are or'd into the mask as the
   3123  1.1  christos      corresponding relocs are encountered during check_relocs.
   3124  1.1  christos      tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
   3125  1.1  christos      indicate the corresponding GOT entry type is not needed.  */
   3126  1.1  christos #define TLS_GD		 1	/* GD reloc. */
   3127  1.1  christos #define TLS_LD		 2	/* LD reloc. */
   3128  1.1  christos #define TLS_TPREL	 4	/* TPREL reloc, => IE. */
   3129  1.1  christos #define TLS_DTPREL	 8	/* DTPREL reloc, => LD. */
   3130  1.1  christos #define TLS_TLS		16	/* Any TLS reloc.  */
   3131  1.1  christos #define TLS_TPRELGD	32	/* TPREL reloc resulting from GD->IE. */
   3132  1.1  christos #define PLT_IFUNC	64	/* STT_GNU_IFUNC.  */
   3133  1.1  christos   char tls_mask;
   3134  1.1  christos 
   3135  1.1  christos   /* Nonzero if we have seen a small data relocation referring to this
   3136  1.1  christos      symbol.  */
   3137  1.1  christos   unsigned char has_sda_refs;
   3138  1.1  christos };
   3139  1.1  christos 
   3140  1.1  christos #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent))
   3141  1.1  christos 
   3142  1.1  christos /* PPC ELF linker hash table.  */
   3143  1.1  christos 
   3144  1.1  christos struct ppc_elf_link_hash_table
   3145  1.1  christos {
   3146  1.1  christos   struct elf_link_hash_table elf;
   3147  1.1  christos 
   3148  1.1  christos   /* Short-cuts to get to dynamic linker sections.  */
   3149  1.1  christos   asection *got;
   3150  1.1  christos   asection *relgot;
   3151  1.1  christos   asection *glink;
   3152  1.1  christos   asection *plt;
   3153  1.1  christos   asection *relplt;
   3154  1.1  christos   asection *iplt;
   3155  1.1  christos   asection *reliplt;
   3156  1.1  christos   asection *dynbss;
   3157  1.1  christos   asection *relbss;
   3158  1.1  christos   asection *dynsbss;
   3159  1.1  christos   asection *relsbss;
   3160  1.1  christos   elf_linker_section_t sdata[2];
   3161  1.1  christos   asection *sbss;
   3162  1.1  christos   asection *glink_eh_frame;
   3163  1.1  christos 
   3164  1.1  christos   /* The (unloaded but important) .rela.plt.unloaded on VxWorks.  */
   3165  1.1  christos   asection *srelplt2;
   3166  1.1  christos 
   3167  1.1  christos   /* The .got.plt section (VxWorks only)*/
   3168  1.1  christos   asection *sgotplt;
   3169  1.1  christos 
   3170  1.1  christos   /* Shortcut to __tls_get_addr.  */
   3171  1.1  christos   struct elf_link_hash_entry *tls_get_addr;
   3172  1.1  christos 
   3173  1.1  christos   /* The bfd that forced an old-style PLT.  */
   3174  1.1  christos   bfd *old_bfd;
   3175  1.1  christos 
   3176  1.1  christos   /* TLS local dynamic got entry handling.  */
   3177  1.1  christos   union {
   3178  1.1  christos     bfd_signed_vma refcount;
   3179  1.1  christos     bfd_vma offset;
   3180  1.1  christos   } tlsld_got;
   3181  1.1  christos 
   3182  1.1  christos   /* Offset of branch table to PltResolve function in glink.  */
   3183  1.1  christos   bfd_vma glink_pltresolve;
   3184  1.1  christos 
   3185  1.1  christos   /* Size of reserved GOT entries.  */
   3186  1.1  christos   unsigned int got_header_size;
   3187  1.1  christos   /* Non-zero if allocating the header left a gap.  */
   3188  1.1  christos   unsigned int got_gap;
   3189  1.1  christos 
   3190  1.1  christos   /* The type of PLT we have chosen to use.  */
   3191  1.1  christos   enum ppc_elf_plt_type plt_type;
   3192  1.1  christos 
   3193  1.1  christos   /* Set if we should emit symbols for stubs.  */
   3194  1.1  christos   unsigned int emit_stub_syms:1;
   3195  1.1  christos 
   3196  1.1  christos   /* Set if __tls_get_addr optimization should not be done.  */
   3197  1.1  christos   unsigned int no_tls_get_addr_opt:1;
   3198  1.1  christos 
   3199  1.1  christos   /* True if the target system is VxWorks.  */
   3200  1.1  christos   unsigned int is_vxworks:1;
   3201  1.1  christos 
   3202  1.1  christos   /* The size of PLT entries.  */
   3203  1.1  christos   int plt_entry_size;
   3204  1.1  christos   /* The distance between adjacent PLT slots.  */
   3205  1.1  christos   int plt_slot_size;
   3206  1.1  christos   /* The size of the first PLT entry.  */
   3207  1.1  christos   int plt_initial_entry_size;
   3208  1.1  christos 
   3209  1.1  christos   /* Small local sym cache.  */
   3210  1.1  christos   struct sym_cache sym_cache;
   3211  1.1  christos };
   3212  1.1  christos 
   3213  1.1  christos /* Rename some of the generic section flags to better document how they
   3214  1.1  christos    are used for ppc32.  The flags are only valid for ppc32 elf objects.  */
   3215  1.1  christos 
   3216  1.1  christos /* Nonzero if this section has TLS related relocations.  */
   3217  1.1  christos #define has_tls_reloc sec_flg0
   3218  1.1  christos 
   3219  1.1  christos /* Nonzero if this section has a call to __tls_get_addr.  */
   3220  1.1  christos #define has_tls_get_addr_call sec_flg1
   3221  1.1  christos 
   3222  1.1  christos /* Get the PPC ELF linker hash table from a link_info structure.  */
   3223  1.1  christos 
   3224  1.1  christos #define ppc_elf_hash_table(p) \
   3225  1.1  christos   (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
   3226  1.1  christos   == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL)
   3227  1.1  christos 
   3228  1.1  christos /* Create an entry in a PPC ELF linker hash table.  */
   3229  1.1  christos 
   3230  1.1  christos static struct bfd_hash_entry *
   3231  1.1  christos ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
   3232  1.1  christos 			   struct bfd_hash_table *table,
   3233  1.1  christos 			   const char *string)
   3234  1.1  christos {
   3235  1.1  christos   /* Allocate the structure if it has not already been allocated by a
   3236  1.1  christos      subclass.  */
   3237  1.1  christos   if (entry == NULL)
   3238  1.1  christos     {
   3239  1.1  christos       entry = bfd_hash_allocate (table,
   3240  1.1  christos 				 sizeof (struct ppc_elf_link_hash_entry));
   3241  1.1  christos       if (entry == NULL)
   3242  1.1  christos 	return entry;
   3243  1.1  christos     }
   3244  1.1  christos 
   3245  1.1  christos   /* Call the allocation method of the superclass.  */
   3246  1.1  christos   entry = _bfd_elf_link_hash_newfunc (entry, table, string);
   3247  1.1  christos   if (entry != NULL)
   3248  1.1  christos     {
   3249  1.1  christos       ppc_elf_hash_entry (entry)->linker_section_pointer = NULL;
   3250  1.1  christos       ppc_elf_hash_entry (entry)->dyn_relocs = NULL;
   3251  1.1  christos       ppc_elf_hash_entry (entry)->tls_mask = 0;
   3252  1.1  christos       ppc_elf_hash_entry (entry)->has_sda_refs = 0;
   3253  1.1  christos     }
   3254  1.1  christos 
   3255  1.1  christos   return entry;
   3256  1.1  christos }
   3257  1.1  christos 
   3258  1.1  christos /* Create a PPC ELF linker hash table.  */
   3259  1.1  christos 
   3260  1.1  christos static struct bfd_link_hash_table *
   3261  1.1  christos ppc_elf_link_hash_table_create (bfd *abfd)
   3262  1.1  christos {
   3263  1.1  christos   struct ppc_elf_link_hash_table *ret;
   3264  1.1  christos 
   3265  1.1  christos   ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table));
   3266  1.1  christos   if (ret == NULL)
   3267  1.1  christos     return NULL;
   3268  1.1  christos 
   3269  1.1  christos   if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
   3270  1.1  christos 				      ppc_elf_link_hash_newfunc,
   3271  1.1  christos 				      sizeof (struct ppc_elf_link_hash_entry),
   3272  1.1  christos 				      PPC32_ELF_DATA))
   3273  1.1  christos     {
   3274  1.1  christos       free (ret);
   3275  1.1  christos       return NULL;
   3276  1.1  christos     }
   3277  1.1  christos 
   3278  1.1  christos   ret->elf.init_plt_refcount.refcount = 0;
   3279  1.1  christos   ret->elf.init_plt_refcount.glist = NULL;
   3280  1.1  christos   ret->elf.init_plt_offset.offset = 0;
   3281  1.1  christos   ret->elf.init_plt_offset.glist = NULL;
   3282  1.1  christos 
   3283  1.1  christos   ret->sdata[0].name = ".sdata";
   3284  1.1  christos   ret->sdata[0].sym_name = "_SDA_BASE_";
   3285  1.1  christos   ret->sdata[0].bss_name = ".sbss";
   3286  1.1  christos 
   3287  1.1  christos   ret->sdata[1].name = ".sdata2";
   3288  1.1  christos   ret->sdata[1].sym_name = "_SDA2_BASE_";
   3289  1.1  christos   ret->sdata[1].bss_name = ".sbss2";
   3290  1.1  christos 
   3291  1.1  christos   ret->plt_entry_size = 12;
   3292  1.1  christos   ret->plt_slot_size = 8;
   3293  1.1  christos   ret->plt_initial_entry_size = 72;
   3294  1.1  christos 
   3295  1.1  christos   return &ret->elf.root;
   3296  1.1  christos }
   3297  1.1  christos 
   3298  1.1  christos /* Create .got and the related sections.  */
   3299  1.1  christos 
   3300  1.1  christos static bfd_boolean
   3301  1.1  christos ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info)
   3302  1.1  christos {
   3303  1.1  christos   struct ppc_elf_link_hash_table *htab;
   3304  1.1  christos   asection *s;
   3305  1.1  christos   flagword flags;
   3306  1.1  christos 
   3307  1.1  christos   if (!_bfd_elf_create_got_section (abfd, info))
   3308  1.1  christos     return FALSE;
   3309  1.1  christos 
   3310  1.1  christos   htab = ppc_elf_hash_table (info);
   3311  1.1  christos   htab->got = s = bfd_get_linker_section (abfd, ".got");
   3312  1.1  christos   if (s == NULL)
   3313  1.1  christos     abort ();
   3314  1.1  christos 
   3315  1.1  christos   if (htab->is_vxworks)
   3316  1.1  christos     {
   3317  1.1  christos       htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt");
   3318  1.1  christos       if (!htab->sgotplt)
   3319  1.1  christos 	abort ();
   3320  1.1  christos     }
   3321  1.1  christos   else
   3322  1.1  christos     {
   3323  1.1  christos       /* The powerpc .got has a blrl instruction in it.  Mark it
   3324  1.1  christos 	 executable.  */
   3325  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS
   3326  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3327  1.1  christos       if (!bfd_set_section_flags (abfd, s, flags))
   3328  1.1  christos 	return FALSE;
   3329  1.1  christos     }
   3330  1.1  christos 
   3331  1.1  christos   htab->relgot = bfd_get_linker_section (abfd, ".rela.got");
   3332  1.1  christos   if (!htab->relgot)
   3333  1.1  christos     abort ();
   3334  1.1  christos 
   3335  1.1  christos   return TRUE;
   3336  1.1  christos }
   3337  1.1  christos 
   3338  1.1  christos static bfd_boolean
   3339  1.1  christos ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info)
   3340  1.1  christos {
   3341  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3342  1.1  christos   asection *s;
   3343  1.1  christos   flagword flags;
   3344  1.1  christos 
   3345  1.1  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS
   3346  1.1  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3347  1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags);
   3348  1.1  christos   htab->glink = s;
   3349  1.1  christos   if (s == NULL
   3350  1.1  christos       || !bfd_set_section_alignment (abfd, s, 4))
   3351  1.1  christos     return FALSE;
   3352  1.1  christos 
   3353  1.1  christos   if (!info->no_ld_generated_unwind_info)
   3354  1.1  christos     {
   3355  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3356  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3357  1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags);
   3358  1.1  christos       htab->glink_eh_frame = s;
   3359  1.1  christos       if (s == NULL
   3360  1.1  christos 	  || !bfd_set_section_alignment (abfd, s, 2))
   3361  1.1  christos 	return FALSE;
   3362  1.1  christos     }
   3363  1.1  christos 
   3364  1.1  christos   flags = SEC_ALLOC | SEC_LINKER_CREATED;
   3365  1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags);
   3366  1.1  christos   htab->iplt = s;
   3367  1.1  christos   if (s == NULL
   3368  1.1  christos       || !bfd_set_section_alignment (abfd, s, 4))
   3369  1.1  christos     return FALSE;
   3370  1.1  christos 
   3371  1.1  christos   flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3372  1.1  christos 	   | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3373  1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags);
   3374  1.1  christos   htab->reliplt = s;
   3375  1.1  christos   if (s == NULL
   3376  1.1  christos       || ! bfd_set_section_alignment (abfd, s, 2))
   3377  1.1  christos     return FALSE;
   3378  1.1  christos   return TRUE;
   3379  1.1  christos }
   3380  1.1  christos 
   3381  1.1  christos /* We have to create .dynsbss and .rela.sbss here so that they get mapped
   3382  1.1  christos    to output sections (just like _bfd_elf_create_dynamic_sections has
   3383  1.1  christos    to create .dynbss and .rela.bss).  */
   3384  1.1  christos 
   3385  1.1  christos static bfd_boolean
   3386  1.1  christos ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
   3387  1.1  christos {
   3388  1.1  christos   struct ppc_elf_link_hash_table *htab;
   3389  1.1  christos   asection *s;
   3390  1.1  christos   flagword flags;
   3391  1.1  christos 
   3392  1.1  christos   htab = ppc_elf_hash_table (info);
   3393  1.1  christos 
   3394  1.1  christos   if (htab->got == NULL
   3395  1.1  christos       && !ppc_elf_create_got (abfd, info))
   3396  1.1  christos     return FALSE;
   3397  1.1  christos 
   3398  1.1  christos   if (!_bfd_elf_create_dynamic_sections (abfd, info))
   3399  1.1  christos     return FALSE;
   3400  1.1  christos 
   3401  1.1  christos   if (htab->glink == NULL
   3402  1.1  christos       && !ppc_elf_create_glink (abfd, info))
   3403  1.1  christos     return FALSE;
   3404  1.1  christos 
   3405  1.1  christos   htab->dynbss = bfd_get_linker_section (abfd, ".dynbss");
   3406  1.1  christos   s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss",
   3407  1.1  christos 					  SEC_ALLOC | SEC_LINKER_CREATED);
   3408  1.1  christos   htab->dynsbss = s;
   3409  1.1  christos   if (s == NULL)
   3410  1.1  christos     return FALSE;
   3411  1.1  christos 
   3412  1.1  christos   if (! info->shared)
   3413  1.1  christos     {
   3414  1.1  christos       htab->relbss = bfd_get_linker_section (abfd, ".rela.bss");
   3415  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS
   3416  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   3417  1.1  christos       s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags);
   3418  1.1  christos       htab->relsbss = s;
   3419  1.1  christos       if (s == NULL
   3420  1.1  christos 	  || ! bfd_set_section_alignment (abfd, s, 2))
   3421  1.1  christos 	return FALSE;
   3422  1.1  christos     }
   3423  1.1  christos 
   3424  1.1  christos   if (htab->is_vxworks
   3425  1.1  christos       && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
   3426  1.1  christos     return FALSE;
   3427  1.1  christos 
   3428  1.1  christos   htab->relplt = bfd_get_linker_section (abfd, ".rela.plt");
   3429  1.1  christos   htab->plt = s = bfd_get_linker_section (abfd, ".plt");
   3430  1.1  christos   if (s == NULL)
   3431  1.1  christos     abort ();
   3432  1.1  christos 
   3433  1.1  christos   flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED;
   3434  1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   3435  1.1  christos     /* The VxWorks PLT is a loaded section with contents.  */
   3436  1.1  christos     flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY;
   3437  1.1  christos   return bfd_set_section_flags (abfd, s, flags);
   3438  1.1  christos }
   3439  1.1  christos 
   3440  1.1  christos /* Copy the extra info we tack onto an elf_link_hash_entry.  */
   3441  1.1  christos 
   3442  1.1  christos static void
   3443  1.1  christos ppc_elf_copy_indirect_symbol (struct bfd_link_info *info,
   3444  1.1  christos 			      struct elf_link_hash_entry *dir,
   3445  1.1  christos 			      struct elf_link_hash_entry *ind)
   3446  1.1  christos {
   3447  1.1  christos   struct ppc_elf_link_hash_entry *edir, *eind;
   3448  1.1  christos 
   3449  1.1  christos   edir = (struct ppc_elf_link_hash_entry *) dir;
   3450  1.1  christos   eind = (struct ppc_elf_link_hash_entry *) ind;
   3451  1.1  christos 
   3452  1.1  christos   edir->tls_mask |= eind->tls_mask;
   3453  1.1  christos   edir->has_sda_refs |= eind->has_sda_refs;
   3454  1.1  christos 
   3455  1.1  christos   /* If called to transfer flags for a weakdef during processing
   3456  1.1  christos      of elf_adjust_dynamic_symbol, don't copy non_got_ref.
   3457  1.1  christos      We clear it ourselves for ELIMINATE_COPY_RELOCS.  */
   3458  1.1  christos   if (!(ELIMINATE_COPY_RELOCS
   3459  1.1  christos 	&& eind->elf.root.type != bfd_link_hash_indirect
   3460  1.1  christos 	&& edir->elf.dynamic_adjusted))
   3461  1.1  christos     edir->elf.non_got_ref |= eind->elf.non_got_ref;
   3462  1.1  christos 
   3463  1.1  christos   edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
   3464  1.1  christos   edir->elf.ref_regular |= eind->elf.ref_regular;
   3465  1.1  christos   edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
   3466  1.1  christos   edir->elf.needs_plt |= eind->elf.needs_plt;
   3467  1.1  christos   edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
   3468  1.1  christos 
   3469  1.1  christos   if (eind->dyn_relocs != NULL)
   3470  1.1  christos     {
   3471  1.1  christos       if (edir->dyn_relocs != NULL)
   3472  1.1  christos 	{
   3473  1.1  christos 	  struct elf_dyn_relocs **pp;
   3474  1.1  christos 	  struct elf_dyn_relocs *p;
   3475  1.1  christos 
   3476  1.1  christos 	  /* Add reloc counts against the indirect sym to the direct sym
   3477  1.1  christos 	     list.  Merge any entries against the same section.  */
   3478  1.1  christos 	  for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
   3479  1.1  christos 	    {
   3480  1.1  christos 	      struct elf_dyn_relocs *q;
   3481  1.1  christos 
   3482  1.1  christos 	      for (q = edir->dyn_relocs; q != NULL; q = q->next)
   3483  1.1  christos 		if (q->sec == p->sec)
   3484  1.1  christos 		  {
   3485  1.1  christos 		    q->pc_count += p->pc_count;
   3486  1.1  christos 		    q->count += p->count;
   3487  1.1  christos 		    *pp = p->next;
   3488  1.1  christos 		    break;
   3489  1.1  christos 		  }
   3490  1.1  christos 	      if (q == NULL)
   3491  1.1  christos 		pp = &p->next;
   3492  1.1  christos 	    }
   3493  1.1  christos 	  *pp = edir->dyn_relocs;
   3494  1.1  christos 	}
   3495  1.1  christos 
   3496  1.1  christos       edir->dyn_relocs = eind->dyn_relocs;
   3497  1.1  christos       eind->dyn_relocs = NULL;
   3498  1.1  christos     }
   3499  1.1  christos 
   3500  1.1  christos   /* If we were called to copy over info for a weak sym, that's all.
   3501  1.1  christos      You might think dyn_relocs need not be copied over;  After all,
   3502  1.1  christos      both syms will be dynamic or both non-dynamic so we're just
   3503  1.1  christos      moving reloc accounting around.  However, ELIMINATE_COPY_RELOCS
   3504  1.1  christos      code in ppc_elf_adjust_dynamic_symbol needs to check for
   3505  1.1  christos      dyn_relocs in read-only sections, and it does so on what is the
   3506  1.1  christos      DIR sym here.  */
   3507  1.1  christos   if (eind->elf.root.type != bfd_link_hash_indirect)
   3508  1.1  christos     return;
   3509  1.1  christos 
   3510  1.1  christos   /* Copy over the GOT refcount entries that we may have already seen to
   3511  1.1  christos      the symbol which just became indirect.  */
   3512  1.1  christos   edir->elf.got.refcount += eind->elf.got.refcount;
   3513  1.1  christos   eind->elf.got.refcount = 0;
   3514  1.1  christos 
   3515  1.1  christos   /* And plt entries.  */
   3516  1.1  christos   if (eind->elf.plt.plist != NULL)
   3517  1.1  christos     {
   3518  1.1  christos       if (edir->elf.plt.plist != NULL)
   3519  1.1  christos 	{
   3520  1.1  christos 	  struct plt_entry **entp;
   3521  1.1  christos 	  struct plt_entry *ent;
   3522  1.1  christos 
   3523  1.1  christos 	  for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
   3524  1.1  christos 	    {
   3525  1.1  christos 	      struct plt_entry *dent;
   3526  1.1  christos 
   3527  1.1  christos 	      for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
   3528  1.1  christos 		if (dent->sec == ent->sec && dent->addend == ent->addend)
   3529  1.1  christos 		  {
   3530  1.1  christos 		    dent->plt.refcount += ent->plt.refcount;
   3531  1.1  christos 		    *entp = ent->next;
   3532  1.1  christos 		    break;
   3533  1.1  christos 		  }
   3534  1.1  christos 	      if (dent == NULL)
   3535  1.1  christos 		entp = &ent->next;
   3536  1.1  christos 	    }
   3537  1.1  christos 	  *entp = edir->elf.plt.plist;
   3538  1.1  christos 	}
   3539  1.1  christos 
   3540  1.1  christos       edir->elf.plt.plist = eind->elf.plt.plist;
   3541  1.1  christos       eind->elf.plt.plist = NULL;
   3542  1.1  christos     }
   3543  1.1  christos 
   3544  1.1  christos   if (eind->elf.dynindx != -1)
   3545  1.1  christos     {
   3546  1.1  christos       if (edir->elf.dynindx != -1)
   3547  1.1  christos 	_bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   3548  1.1  christos 				edir->elf.dynstr_index);
   3549  1.1  christos       edir->elf.dynindx = eind->elf.dynindx;
   3550  1.1  christos       edir->elf.dynstr_index = eind->elf.dynstr_index;
   3551  1.1  christos       eind->elf.dynindx = -1;
   3552  1.1  christos       eind->elf.dynstr_index = 0;
   3553  1.1  christos     }
   3554  1.1  christos }
   3555  1.1  christos 
   3556  1.1  christos /* Hook called by the linker routine which adds symbols from an object
   3557  1.1  christos    file.  We use it to put .comm items in .sbss, and not .bss.  */
   3558  1.1  christos 
   3559  1.1  christos static bfd_boolean
   3560  1.1  christos ppc_elf_add_symbol_hook (bfd *abfd,
   3561  1.1  christos 			 struct bfd_link_info *info,
   3562  1.1  christos 			 Elf_Internal_Sym *sym,
   3563  1.1  christos 			 const char **namep ATTRIBUTE_UNUSED,
   3564  1.1  christos 			 flagword *flagsp ATTRIBUTE_UNUSED,
   3565  1.1  christos 			 asection **secp,
   3566  1.1  christos 			 bfd_vma *valp)
   3567  1.1  christos {
   3568  1.1  christos   if (sym->st_shndx == SHN_COMMON
   3569  1.1  christos       && !info->relocatable
   3570  1.1  christos       && is_ppc_elf (info->output_bfd)
   3571  1.1  christos       && sym->st_size <= elf_gp_size (abfd))
   3572  1.1  christos     {
   3573  1.1  christos       /* Common symbols less than or equal to -G nn bytes are automatically
   3574  1.1  christos 	 put into .sbss.  */
   3575  1.1  christos       struct ppc_elf_link_hash_table *htab;
   3576  1.1  christos 
   3577  1.1  christos       htab = ppc_elf_hash_table (info);
   3578  1.1  christos       if (htab->sbss == NULL)
   3579  1.1  christos 	{
   3580  1.1  christos 	  flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED;
   3581  1.1  christos 
   3582  1.1  christos 	  if (!htab->elf.dynobj)
   3583  1.1  christos 	    htab->elf.dynobj = abfd;
   3584  1.1  christos 
   3585  1.1  christos 	  htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
   3586  1.1  christos 							   ".sbss",
   3587  1.1  christos 							   flags);
   3588  1.1  christos 	  if (htab->sbss == NULL)
   3589  1.1  christos 	    return FALSE;
   3590  1.1  christos 	}
   3591  1.1  christos 
   3592  1.1  christos       *secp = htab->sbss;
   3593  1.1  christos       *valp = sym->st_size;
   3594  1.1  christos     }
   3595  1.1  christos 
   3596  1.1  christos   if ((abfd->flags & DYNAMIC) == 0
   3597  1.1  christos       && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
   3598  1.1  christos 	  || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE))
   3599  1.1  christos     elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE;
   3600  1.1  christos 
   3601  1.1  christos   return TRUE;
   3602  1.1  christos }
   3603  1.1  christos 
   3604  1.1  christos static bfd_boolean
   3606  1.1  christos create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect)
   3607  1.1  christos {
   3608  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3609  1.1  christos 
   3610  1.1  christos   lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name,
   3611  1.1  christos 				     TRUE, FALSE, TRUE);
   3612  1.1  christos   if (lsect->sym == NULL)
   3613  1.1  christos     return FALSE;
   3614  1.1  christos   if (lsect->sym->root.type == bfd_link_hash_new)
   3615  1.1  christos     lsect->sym->non_elf = 0;
   3616  1.1  christos   lsect->sym->ref_regular = 1;
   3617  1.1  christos   _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE);
   3618  1.1  christos   return TRUE;
   3619  1.1  christos }
   3620  1.1  christos 
   3621  1.1  christos /* Create a special linker section.  */
   3622  1.1  christos 
   3623  1.1  christos static bfd_boolean
   3624  1.1  christos ppc_elf_create_linker_section (bfd *abfd,
   3625  1.1  christos 			       struct bfd_link_info *info,
   3626  1.1  christos 			       flagword flags,
   3627  1.1  christos 			       elf_linker_section_t *lsect)
   3628  1.1  christos {
   3629  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   3630  1.1  christos   asection *s;
   3631  1.1  christos 
   3632  1.1  christos   flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
   3633  1.1  christos 	    | SEC_LINKER_CREATED);
   3634  1.1  christos 
   3635  1.1  christos   /* Record the first bfd that needs the special sections.  */
   3636  1.1  christos   if (!htab->elf.dynobj)
   3637  1.1  christos     htab->elf.dynobj = abfd;
   3638  1.1  christos 
   3639  1.1  christos   s = bfd_make_section_anyway_with_flags (htab->elf.dynobj,
   3640  1.1  christos 					  lsect->name,
   3641  1.1  christos 					  flags);
   3642  1.1  christos   if (s == NULL
   3643  1.1  christos       || !bfd_set_section_alignment (htab->elf.dynobj, s, 2))
   3644  1.1  christos     return FALSE;
   3645  1.1  christos   lsect->section = s;
   3646  1.1  christos 
   3647  1.1  christos   return create_sdata_sym (info, lsect);
   3648  1.1  christos }
   3649  1.1  christos 
   3650  1.1  christos /* Find a linker generated pointer with a given addend and type.  */
   3651  1.1  christos 
   3652  1.1  christos static elf_linker_section_pointers_t *
   3653  1.1  christos elf_find_pointer_linker_section
   3654  1.1  christos   (elf_linker_section_pointers_t *linker_pointers,
   3655  1.1  christos    bfd_vma addend,
   3656  1.1  christos    elf_linker_section_t *lsect)
   3657  1.1  christos {
   3658  1.1  christos   for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next)
   3659  1.1  christos     if (lsect == linker_pointers->lsect && addend == linker_pointers->addend)
   3660  1.1  christos       return linker_pointers;
   3661  1.1  christos 
   3662  1.1  christos   return NULL;
   3663  1.1  christos }
   3664  1.1  christos 
   3665  1.1  christos /* Allocate a pointer to live in a linker created section.  */
   3666  1.1  christos 
   3667  1.1  christos static bfd_boolean
   3668  1.1  christos elf_create_pointer_linker_section (bfd *abfd,
   3669  1.1  christos 				   elf_linker_section_t *lsect,
   3670  1.1  christos 				   struct elf_link_hash_entry *h,
   3671  1.1  christos 				   const Elf_Internal_Rela *rel)
   3672  1.1  christos {
   3673  1.1  christos   elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
   3674  1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   3675  1.1  christos   unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   3676  1.1  christos   bfd_size_type amt;
   3677  1.1  christos 
   3678  1.1  christos   BFD_ASSERT (lsect != NULL);
   3679  1.1  christos 
   3680  1.1  christos   /* Is this a global symbol?  */
   3681  1.1  christos   if (h != NULL)
   3682  1.1  christos     {
   3683  1.1  christos       struct ppc_elf_link_hash_entry *eh;
   3684  1.1  christos 
   3685  1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3686  1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   3687  1.1  christos       if (elf_find_pointer_linker_section (eh->linker_section_pointer,
   3688  1.1  christos 					   rel->r_addend,
   3689  1.1  christos 					   lsect))
   3690  1.1  christos 	return TRUE;
   3691  1.1  christos 
   3692  1.1  christos       ptr_linker_section_ptr = &eh->linker_section_pointer;
   3693  1.1  christos     }
   3694  1.1  christos   else
   3695  1.1  christos     {
   3696  1.1  christos       BFD_ASSERT (is_ppc_elf (abfd));
   3697  1.1  christos 
   3698  1.1  christos       /* Allocation of a pointer to a local symbol.  */
   3699  1.1  christos       elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
   3700  1.1  christos 
   3701  1.1  christos       /* Allocate a table to hold the local symbols if first time.  */
   3702  1.1  christos       if (!ptr)
   3703  1.1  christos 	{
   3704  1.1  christos 	  unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info;
   3705  1.1  christos 
   3706  1.1  christos 	  amt = num_symbols;
   3707  1.1  christos 	  amt *= sizeof (elf_linker_section_pointers_t *);
   3708  1.1  christos 	  ptr = bfd_zalloc (abfd, amt);
   3709  1.1  christos 
   3710  1.1  christos 	  if (!ptr)
   3711  1.1  christos 	    return FALSE;
   3712  1.1  christos 
   3713  1.1  christos 	  elf_local_ptr_offsets (abfd) = ptr;
   3714  1.1  christos 	}
   3715  1.1  christos 
   3716  1.1  christos       /* Has this symbol already been allocated?  If so, our work is done.  */
   3717  1.1  christos       if (elf_find_pointer_linker_section (ptr[r_symndx],
   3718  1.1  christos 					   rel->r_addend,
   3719  1.1  christos 					   lsect))
   3720  1.1  christos 	return TRUE;
   3721  1.1  christos 
   3722  1.1  christos       ptr_linker_section_ptr = &ptr[r_symndx];
   3723  1.1  christos     }
   3724  1.1  christos 
   3725  1.1  christos   /* Allocate space for a pointer in the linker section, and allocate
   3726  1.1  christos      a new pointer record from internal memory.  */
   3727  1.1  christos   BFD_ASSERT (ptr_linker_section_ptr != NULL);
   3728  1.1  christos   amt = sizeof (elf_linker_section_pointers_t);
   3729  1.1  christos   linker_section_ptr = bfd_alloc (abfd, amt);
   3730  1.1  christos 
   3731  1.1  christos   if (!linker_section_ptr)
   3732  1.1  christos     return FALSE;
   3733  1.1  christos 
   3734  1.1  christos   linker_section_ptr->next = *ptr_linker_section_ptr;
   3735  1.1  christos   linker_section_ptr->addend = rel->r_addend;
   3736  1.1  christos   linker_section_ptr->lsect = lsect;
   3737  1.1  christos   *ptr_linker_section_ptr = linker_section_ptr;
   3738  1.1  christos 
   3739  1.1  christos   linker_section_ptr->offset = lsect->section->size;
   3740  1.1  christos   lsect->section->size += 4;
   3741  1.1  christos 
   3742  1.1  christos #ifdef DEBUG
   3743  1.1  christos   fprintf (stderr,
   3744  1.1  christos 	   "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
   3745  1.1  christos 	   lsect->name, (long) linker_section_ptr->offset,
   3746  1.1  christos 	   (long) lsect->section->size);
   3747  1.1  christos #endif
   3748  1.1  christos 
   3749  1.1  christos   return TRUE;
   3750  1.1  christos }
   3751  1.1  christos 
   3752  1.1  christos static struct plt_entry **
   3753  1.1  christos update_local_sym_info (bfd *abfd,
   3754  1.1  christos 		       Elf_Internal_Shdr *symtab_hdr,
   3755  1.1  christos 		       unsigned long r_symndx,
   3756  1.1  christos 		       int tls_type)
   3757  1.1  christos {
   3758  1.1  christos   bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd);
   3759  1.1  christos   struct plt_entry **local_plt;
   3760  1.1  christos   char *local_got_tls_masks;
   3761  1.1  christos 
   3762  1.1  christos   if (local_got_refcounts == NULL)
   3763  1.1  christos     {
   3764  1.1  christos       bfd_size_type size = symtab_hdr->sh_info;
   3765  1.1  christos 
   3766  1.1  christos       size *= (sizeof (*local_got_refcounts)
   3767  1.1  christos 	       + sizeof (*local_plt)
   3768  1.1  christos 	       + sizeof (*local_got_tls_masks));
   3769  1.1  christos       local_got_refcounts = bfd_zalloc (abfd, size);
   3770  1.1  christos       if (local_got_refcounts == NULL)
   3771  1.1  christos 	return NULL;
   3772  1.1  christos       elf_local_got_refcounts (abfd) = local_got_refcounts;
   3773  1.1  christos     }
   3774  1.1  christos 
   3775  1.1  christos   local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info);
   3776  1.1  christos   local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info);
   3777  1.1  christos   local_got_tls_masks[r_symndx] |= tls_type;
   3778  1.1  christos   if (tls_type != PLT_IFUNC)
   3779  1.1  christos     local_got_refcounts[r_symndx] += 1;
   3780  1.1  christos   return local_plt + r_symndx;
   3781  1.1  christos }
   3782  1.1  christos 
   3783  1.1  christos static bfd_boolean
   3784  1.1  christos update_plt_info (bfd *abfd, struct plt_entry **plist,
   3785  1.1  christos 		 asection *sec, bfd_vma addend)
   3786  1.1  christos {
   3787  1.1  christos   struct plt_entry *ent;
   3788  1.1  christos 
   3789  1.1  christos   if (addend < 32768)
   3790  1.1  christos     sec = NULL;
   3791  1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3792  1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3793  1.1  christos       break;
   3794  1.1  christos   if (ent == NULL)
   3795  1.1  christos     {
   3796  1.1  christos       bfd_size_type amt = sizeof (*ent);
   3797  1.1  christos       ent = bfd_alloc (abfd, amt);
   3798  1.1  christos       if (ent == NULL)
   3799  1.1  christos 	return FALSE;
   3800  1.1  christos       ent->next = *plist;
   3801  1.1  christos       ent->sec = sec;
   3802  1.1  christos       ent->addend = addend;
   3803  1.1  christos       ent->plt.refcount = 0;
   3804  1.1  christos       *plist = ent;
   3805  1.1  christos     }
   3806  1.1  christos   ent->plt.refcount += 1;
   3807  1.1  christos   return TRUE;
   3808  1.1  christos }
   3809  1.1  christos 
   3810  1.1  christos static struct plt_entry *
   3811  1.1  christos find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend)
   3812  1.1  christos {
   3813  1.1  christos   struct plt_entry *ent;
   3814  1.1  christos 
   3815  1.1  christos   if (addend < 32768)
   3816  1.1  christos     sec = NULL;
   3817  1.1  christos   for (ent = *plist; ent != NULL; ent = ent->next)
   3818  1.1  christos     if (ent->sec == sec && ent->addend == addend)
   3819  1.1  christos       break;
   3820  1.1  christos   return ent;
   3821  1.1  christos }
   3822  1.1  christos 
   3823  1.1  christos static bfd_boolean
   3824  1.1  christos is_branch_reloc (enum elf_ppc_reloc_type r_type)
   3825  1.1  christos {
   3826  1.1  christos   return (r_type == R_PPC_PLTREL24
   3827  1.1  christos 	  || r_type == R_PPC_LOCAL24PC
   3828  1.1  christos 	  || r_type == R_PPC_REL24
   3829  1.1  christos 	  || r_type == R_PPC_REL14
   3830  1.1  christos 	  || r_type == R_PPC_REL14_BRTAKEN
   3831  1.1  christos 	  || r_type == R_PPC_REL14_BRNTAKEN
   3832  1.1  christos 	  || r_type == R_PPC_ADDR24
   3833  1.1  christos 	  || r_type == R_PPC_ADDR14
   3834  1.1  christos 	  || r_type == R_PPC_ADDR14_BRTAKEN
   3835  1.1  christos 	  || r_type == R_PPC_ADDR14_BRNTAKEN);
   3836  1.1  christos }
   3837  1.1  christos 
   3838  1.1  christos static void
   3839  1.1  christos bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type)
   3840  1.1  christos {
   3841  1.1  christos   (*_bfd_error_handler)
   3842  1.1  christos     (_("%B: relocation %s cannot be used when making a shared object"),
   3843  1.1  christos      abfd,
   3844  1.1  christos      ppc_elf_howto_table[r_type]->name);
   3845  1.1  christos   bfd_set_error (bfd_error_bad_value);
   3846  1.1  christos }
   3847  1.1  christos 
   3848  1.1  christos /* Look through the relocs for a section during the first phase, and
   3849  1.1  christos    allocate space in the global offset table or procedure linkage
   3850  1.1  christos    table.  */
   3851  1.1  christos 
   3852  1.1  christos static bfd_boolean
   3853  1.1  christos ppc_elf_check_relocs (bfd *abfd,
   3854  1.1  christos 		      struct bfd_link_info *info,
   3855  1.1  christos 		      asection *sec,
   3856  1.1  christos 		      const Elf_Internal_Rela *relocs)
   3857  1.1  christos {
   3858  1.1  christos   struct ppc_elf_link_hash_table *htab;
   3859  1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   3860  1.1  christos   struct elf_link_hash_entry **sym_hashes;
   3861  1.1  christos   const Elf_Internal_Rela *rel;
   3862  1.1  christos   const Elf_Internal_Rela *rel_end;
   3863  1.1  christos   asection *got2, *sreloc;
   3864  1.1  christos   struct elf_link_hash_entry *tga;
   3865  1.1  christos 
   3866  1.1  christos   if (info->relocatable)
   3867  1.1  christos     return TRUE;
   3868  1.1  christos 
   3869  1.1  christos   /* Don't do anything special with non-loaded, non-alloced sections.
   3870  1.1  christos      In particular, any relocs in such sections should not affect GOT
   3871  1.1  christos      and PLT reference counting (ie. we don't allow them to create GOT
   3872  1.1  christos      or PLT entries), there's no possibility or desire to optimize TLS
   3873  1.1  christos      relocs, and there's not much point in propagating relocs to shared
   3874  1.1  christos      libs that the dynamic linker won't relocate.  */
   3875  1.1  christos   if ((sec->flags & SEC_ALLOC) == 0)
   3876  1.1  christos     return TRUE;
   3877  1.1  christos 
   3878  1.1  christos #ifdef DEBUG
   3879  1.1  christos   _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B",
   3880  1.1  christos 		      sec, abfd);
   3881  1.1  christos #endif
   3882  1.1  christos 
   3883  1.1  christos   BFD_ASSERT (is_ppc_elf (abfd));
   3884  1.1  christos 
   3885  1.1  christos   /* Initialize howto table if not already done.  */
   3886  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   3887  1.1  christos     ppc_elf_howto_init ();
   3888  1.1  christos 
   3889  1.1  christos   htab = ppc_elf_hash_table (info);
   3890  1.1  christos   if (htab->glink == NULL)
   3891  1.1  christos     {
   3892  1.1  christos       if (htab->elf.dynobj == NULL)
   3893  1.1  christos 	htab->elf.dynobj = abfd;
   3894  1.1  christos       if (!ppc_elf_create_glink (htab->elf.dynobj, info))
   3895  1.1  christos 	return FALSE;
   3896  1.1  christos     }
   3897  1.1  christos   tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   3898  1.1  christos 			      FALSE, FALSE, TRUE);
   3899  1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   3900  1.1  christos   sym_hashes = elf_sym_hashes (abfd);
   3901  1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   3902  1.1  christos   sreloc = NULL;
   3903  1.1  christos 
   3904  1.1  christos   rel_end = relocs + sec->reloc_count;
   3905  1.1  christos   for (rel = relocs; rel < rel_end; rel++)
   3906  1.1  christos     {
   3907  1.1  christos       unsigned long r_symndx;
   3908  1.1  christos       enum elf_ppc_reloc_type r_type;
   3909  1.1  christos       struct elf_link_hash_entry *h;
   3910  1.1  christos       int tls_type;
   3911  1.1  christos 
   3912  1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   3913  1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   3914  1.1  christos 	h = NULL;
   3915  1.1  christos       else
   3916  1.1  christos 	{
   3917  1.1  christos 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   3918  1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   3919  1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   3920  1.1  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   3921  1.1  christos 
   3922  1.1  christos 	  /* PR15323, ref flags aren't set for references in the same
   3923  1.1  christos 	     object.  */
   3924  1.1  christos 	  h->root.non_ir_ref = 1;
   3925  1.1  christos 	}
   3926  1.1  christos 
   3927  1.1  christos       /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got.
   3928  1.1  christos 	 This shows up in particular in an R_PPC_ADDR32 in the eabi
   3929  1.1  christos 	 startup code.  */
   3930  1.1  christos       if (h != NULL
   3931  1.1  christos 	  && htab->got == NULL
   3932  1.1  christos 	  && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
   3933  1.1  christos 	{
   3934  1.1  christos 	  if (htab->elf.dynobj == NULL)
   3935  1.1  christos 	    htab->elf.dynobj = abfd;
   3936  1.1  christos 	  if (!ppc_elf_create_got (htab->elf.dynobj, info))
   3937  1.1  christos 	    return FALSE;
   3938  1.1  christos 	  BFD_ASSERT (h == htab->elf.hgot);
   3939  1.1  christos 	}
   3940  1.1  christos 
   3941  1.1  christos       tls_type = 0;
   3942  1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   3943  1.1  christos       if (h == NULL && !htab->is_vxworks)
   3944  1.1  christos 	{
   3945  1.1  christos 	  Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   3946  1.1  christos 							  abfd, r_symndx);
   3947  1.1  christos 	  if (isym == NULL)
   3948  1.1  christos 	    return FALSE;
   3949  1.1  christos 
   3950  1.1  christos 	  if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
   3951  1.1  christos 	    {
   3952  1.1  christos 	      struct plt_entry **ifunc;
   3953  1.1  christos 
   3954  1.1  christos 	      /* Set PLT_IFUNC flag for this sym, no GOT entry yet.  */
   3955  1.1  christos 	      ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx,
   3956  1.1  christos 					     PLT_IFUNC);
   3957  1.1  christos 	      if (ifunc == NULL)
   3958  1.1  christos 		return FALSE;
   3959  1.1  christos 
   3960  1.1  christos 	      /* STT_GNU_IFUNC symbols must have a PLT entry;
   3961  1.1  christos 		 In a non-pie executable even when there are
   3962  1.1  christos 		 no plt calls.  */
   3963  1.1  christos 	      if (!info->shared
   3964  1.1  christos 		  || is_branch_reloc (r_type))
   3965  1.1  christos 		{
   3966  1.1  christos 		  bfd_vma addend = 0;
   3967  1.1  christos 		  if (r_type == R_PPC_PLTREL24)
   3968  1.1  christos 		    {
   3969  1.1  christos 		      ppc_elf_tdata (abfd)->makes_plt_call = 1;
   3970  1.1  christos 		      if (info->shared)
   3971  1.1  christos 			addend = rel->r_addend;
   3972  1.1  christos 		    }
   3973  1.1  christos 		  if (!update_plt_info (abfd, ifunc, got2, addend))
   3974  1.1  christos 		    return FALSE;
   3975  1.1  christos 		}
   3976  1.1  christos 	    }
   3977  1.1  christos 	}
   3978  1.1  christos 
   3979  1.1  christos       if (!htab->is_vxworks
   3980  1.1  christos 	  && is_branch_reloc (r_type)
   3981  1.1  christos 	  && h != NULL
   3982  1.1  christos 	  && h == tga)
   3983  1.1  christos 	{
   3984  1.1  christos 	  if (rel != relocs
   3985  1.1  christos 	      && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD
   3986  1.1  christos 		  || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD))
   3987  1.1  christos 	    /* We have a new-style __tls_get_addr call with a marker
   3988  1.1  christos 	       reloc.  */
   3989  1.1  christos 	    ;
   3990  1.1  christos 	  else
   3991  1.1  christos 	    /* Mark this section as having an old-style call.  */
   3992  1.1  christos 	    sec->has_tls_get_addr_call = 1;
   3993  1.1  christos 	}
   3994  1.1  christos 
   3995  1.1  christos       switch (r_type)
   3996  1.1  christos 	{
   3997  1.1  christos 	case R_PPC_TLSGD:
   3998  1.1  christos 	case R_PPC_TLSLD:
   3999  1.1  christos 	  /* These special tls relocs tie a call to __tls_get_addr with
   4000  1.1  christos 	     its parameter symbol.  */
   4001  1.1  christos 	  break;
   4002  1.1  christos 
   4003  1.1  christos 	case R_PPC_GOT_TLSLD16:
   4004  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   4005  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   4006  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   4007  1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   4008  1.1  christos 	  goto dogottls;
   4009  1.1  christos 
   4010  1.1  christos 	case R_PPC_GOT_TLSGD16:
   4011  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   4012  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   4013  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   4014  1.1  christos 	  tls_type = TLS_TLS | TLS_GD;
   4015  1.1  christos 	  goto dogottls;
   4016  1.1  christos 
   4017  1.1  christos 	case R_PPC_GOT_TPREL16:
   4018  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   4019  1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   4020  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   4021  1.1  christos 	  if (!info->executable)
   4022  1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4023  1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   4024  1.1  christos 	  goto dogottls;
   4025  1.1  christos 
   4026  1.1  christos 	case R_PPC_GOT_DTPREL16:
   4027  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   4028  1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   4029  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   4030  1.1  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   4031  1.1  christos 	dogottls:
   4032  1.1  christos 	  sec->has_tls_reloc = 1;
   4033  1.1  christos 	  /* Fall thru */
   4034  1.1  christos 
   4035  1.1  christos 	  /* GOT16 relocations */
   4036  1.1  christos 	case R_PPC_GOT16:
   4037  1.1  christos 	case R_PPC_GOT16_LO:
   4038  1.1  christos 	case R_PPC_GOT16_HI:
   4039  1.1  christos 	case R_PPC_GOT16_HA:
   4040  1.1  christos 	  /* This symbol requires a global offset table entry.  */
   4041  1.1  christos 	  if (htab->got == NULL)
   4042  1.1  christos 	    {
   4043  1.1  christos 	      if (htab->elf.dynobj == NULL)
   4044  1.1  christos 		htab->elf.dynobj = abfd;
   4045  1.1  christos 	      if (!ppc_elf_create_got (htab->elf.dynobj, info))
   4046  1.1  christos 		return FALSE;
   4047  1.1  christos 	    }
   4048  1.1  christos 	  if (h != NULL)
   4049  1.1  christos 	    {
   4050  1.1  christos 	      h->got.refcount += 1;
   4051  1.1  christos 	      ppc_elf_hash_entry (h)->tls_mask |= tls_type;
   4052  1.1  christos 	    }
   4053  1.1  christos 	  else
   4054  1.1  christos 	    /* This is a global offset table entry for a local symbol.  */
   4055  1.1  christos 	    if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type))
   4056  1.1  christos 	      return FALSE;
   4057  1.1  christos 
   4058  1.1  christos 	  /* We may also need a plt entry if the symbol turns out to be
   4059  1.1  christos 	     an ifunc.  */
   4060  1.1  christos 	  if (h != NULL && !info->shared)
   4061  1.1  christos 	    {
   4062  1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4063  1.1  christos 		return FALSE;
   4064  1.1  christos 	    }
   4065  1.1  christos 	  break;
   4066  1.1  christos 
   4067  1.1  christos 	  /* Indirect .sdata relocation.  */
   4068  1.1  christos 	case R_PPC_EMB_SDAI16:
   4069  1.1  christos 	  if (info->shared)
   4070  1.1  christos 	    {
   4071  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4072  1.1  christos 	      return FALSE;
   4073  1.1  christos 	    }
   4074  1.1  christos 	  if (htab->sdata[0].section == NULL
   4075  1.1  christos 	      && !ppc_elf_create_linker_section (abfd, info, 0,
   4076  1.1  christos 						 &htab->sdata[0]))
   4077  1.1  christos 	    return FALSE;
   4078  1.1  christos 	  if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0],
   4079  1.1  christos 						  h, rel))
   4080  1.1  christos 	    return FALSE;
   4081  1.1  christos 	  if (h != NULL)
   4082  1.1  christos 	    {
   4083  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4084  1.1  christos 	      h->non_got_ref = TRUE;
   4085  1.1  christos 	    }
   4086  1.1  christos 	  break;
   4087  1.1  christos 
   4088  1.1  christos 	  /* Indirect .sdata2 relocation.  */
   4089  1.1  christos 	case R_PPC_EMB_SDA2I16:
   4090  1.1  christos 	  if (info->shared)
   4091  1.1  christos 	    {
   4092  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4093  1.1  christos 	      return FALSE;
   4094  1.1  christos 	    }
   4095  1.1  christos 	  if (htab->sdata[1].section == NULL
   4096  1.1  christos 	      && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY,
   4097  1.1  christos 						 &htab->sdata[1]))
   4098  1.1  christos 	    return FALSE;
   4099  1.1  christos 	  if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1],
   4100  1.1  christos 						  h, rel))
   4101  1.1  christos 	    return FALSE;
   4102  1.1  christos 	  if (h != NULL)
   4103  1.1  christos 	    {
   4104  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4105  1.1  christos 	      h->non_got_ref = TRUE;
   4106  1.1  christos 	    }
   4107  1.1  christos 	  break;
   4108  1.1  christos 
   4109  1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   4110  1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   4111  1.1  christos 	case R_PPC_VLE_SDAREL_HI16A:
   4112  1.1  christos 	case R_PPC_VLE_SDAREL_HI16D:
   4113  1.1  christos 	case R_PPC_VLE_SDAREL_HA16A:
   4114  1.1  christos 	case R_PPC_VLE_SDAREL_HA16D:
   4115  1.1  christos 	case R_PPC_SDAREL16:
   4116  1.1  christos 	  if (htab->sdata[0].sym == NULL
   4117  1.1  christos 	      && !create_sdata_sym (info, &htab->sdata[0]))
   4118  1.1  christos 	    return FALSE;
   4119  1.1  christos 
   4120  1.1  christos 	  if (htab->sdata[1].sym == NULL
   4121  1.1  christos 	      && !create_sdata_sym (info, &htab->sdata[1]))
   4122  1.1  christos 	    return FALSE;
   4123  1.1  christos 
   4124  1.1  christos 	  if (h != NULL)
   4125  1.1  christos 	    {
   4126  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4127  1.1  christos 	      h->non_got_ref = TRUE;
   4128  1.1  christos 	    }
   4129  1.1  christos 	  break;
   4130  1.1  christos 
   4131  1.1  christos 	case R_PPC_VLE_REL8:
   4132  1.1  christos 	case R_PPC_VLE_REL15:
   4133  1.1  christos 	case R_PPC_VLE_REL24:
   4134  1.1  christos 	case R_PPC_VLE_LO16A:
   4135  1.1  christos 	case R_PPC_VLE_LO16D:
   4136  1.1  christos 	case R_PPC_VLE_HI16A:
   4137  1.1  christos 	case R_PPC_VLE_HI16D:
   4138  1.1  christos 	case R_PPC_VLE_HA16A:
   4139  1.1  christos 	case R_PPC_VLE_HA16D:
   4140  1.1  christos 	  break;
   4141  1.1  christos 
   4142  1.1  christos 	case R_PPC_EMB_SDA2REL:
   4143  1.1  christos 	  if (info->shared)
   4144  1.1  christos 	    {
   4145  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4146  1.1  christos 	      return FALSE;
   4147  1.1  christos 	    }
   4148  1.1  christos 	  if (htab->sdata[1].sym == NULL
   4149  1.1  christos 	      && !create_sdata_sym (info, &htab->sdata[1]))
   4150  1.1  christos 	    return FALSE;
   4151  1.1  christos 	  if (h != NULL)
   4152  1.1  christos 	    {
   4153  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4154  1.1  christos 	      h->non_got_ref = TRUE;
   4155  1.1  christos 	    }
   4156  1.1  christos 	  break;
   4157  1.1  christos 
   4158  1.1  christos 	case R_PPC_VLE_SDA21_LO:
   4159  1.1  christos 	case R_PPC_VLE_SDA21:
   4160  1.1  christos 	case R_PPC_EMB_SDA21:
   4161  1.1  christos 	case R_PPC_EMB_RELSDA:
   4162  1.1  christos 	  if (info->shared)
   4163  1.1  christos 	    {
   4164  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4165  1.1  christos 	      return FALSE;
   4166  1.1  christos 	    }
   4167  1.1  christos 	  if (htab->sdata[0].sym == NULL
   4168  1.1  christos 	      && !create_sdata_sym (info, &htab->sdata[0]))
   4169  1.1  christos 	    return FALSE;
   4170  1.1  christos 	  if (htab->sdata[1].sym == NULL
   4171  1.1  christos 	      && !create_sdata_sym (info, &htab->sdata[1]))
   4172  1.1  christos 	    return FALSE;
   4173  1.1  christos 	  if (h != NULL)
   4174  1.1  christos 	    {
   4175  1.1  christos 	      ppc_elf_hash_entry (h)->has_sda_refs = TRUE;
   4176  1.1  christos 	      h->non_got_ref = TRUE;
   4177  1.1  christos 	    }
   4178  1.1  christos 	  break;
   4179  1.1  christos 
   4180  1.1  christos 	case R_PPC_EMB_NADDR32:
   4181  1.1  christos 	case R_PPC_EMB_NADDR16:
   4182  1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   4183  1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   4184  1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   4185  1.1  christos 	  if (info->shared)
   4186  1.1  christos 	    {
   4187  1.1  christos 	      bad_shared_reloc (abfd, r_type);
   4188  1.1  christos 	      return FALSE;
   4189  1.1  christos 	    }
   4190  1.1  christos 	  if (h != NULL)
   4191  1.1  christos 	    h->non_got_ref = TRUE;
   4192  1.1  christos 	  break;
   4193  1.1  christos 
   4194  1.1  christos 	case R_PPC_PLTREL24:
   4195  1.1  christos 	  if (h == NULL)
   4196  1.1  christos 	    break;
   4197  1.1  christos 	  /* Fall through */
   4198  1.1  christos 	case R_PPC_PLT32:
   4199  1.1  christos 	case R_PPC_PLTREL32:
   4200  1.1  christos 	case R_PPC_PLT16_LO:
   4201  1.1  christos 	case R_PPC_PLT16_HI:
   4202  1.1  christos 	case R_PPC_PLT16_HA:
   4203  1.1  christos #ifdef DEBUG
   4204  1.1  christos 	  fprintf (stderr, "Reloc requires a PLT entry\n");
   4205  1.1  christos #endif
   4206  1.1  christos 	  /* This symbol requires a procedure linkage table entry.  We
   4207  1.1  christos 	     actually build the entry in finish_dynamic_symbol,
   4208  1.1  christos 	     because this might be a case of linking PIC code without
   4209  1.1  christos 	     linking in any dynamic objects, in which case we don't
   4210  1.1  christos 	     need to generate a procedure linkage table after all.  */
   4211  1.1  christos 
   4212  1.1  christos 	  if (h == NULL)
   4213  1.1  christos 	    {
   4214  1.1  christos 	      /* It does not make sense to have a procedure linkage
   4215  1.1  christos 		 table entry for a local symbol.  */
   4216  1.1  christos 	      info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"),
   4217  1.1  christos 				      abfd, sec, rel->r_offset,
   4218  1.1  christos 				      ppc_elf_howto_table[r_type]->name);
   4219  1.1  christos 	      bfd_set_error (bfd_error_bad_value);
   4220  1.1  christos 	      return FALSE;
   4221  1.1  christos 	    }
   4222  1.1  christos 	  else
   4223  1.1  christos 	    {
   4224  1.1  christos 	      bfd_vma addend = 0;
   4225  1.1  christos 
   4226  1.1  christos 	      if (r_type == R_PPC_PLTREL24)
   4227  1.1  christos 		{
   4228  1.1  christos 		  ppc_elf_tdata (abfd)->makes_plt_call = 1;
   4229  1.1  christos 		  if (info->shared)
   4230  1.1  christos 		    addend = rel->r_addend;
   4231  1.1  christos 		}
   4232  1.1  christos 	      h->needs_plt = 1;
   4233  1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, got2, addend))
   4234  1.1  christos 		return FALSE;
   4235  1.1  christos 	    }
   4236  1.1  christos 	  break;
   4237  1.1  christos 
   4238  1.1  christos 	  /* The following relocations don't need to propagate the
   4239  1.1  christos 	     relocation if linking a shared object since they are
   4240  1.1  christos 	     section relative.  */
   4241  1.1  christos 	case R_PPC_SECTOFF:
   4242  1.1  christos 	case R_PPC_SECTOFF_LO:
   4243  1.1  christos 	case R_PPC_SECTOFF_HI:
   4244  1.1  christos 	case R_PPC_SECTOFF_HA:
   4245  1.1  christos 	case R_PPC_DTPREL16:
   4246  1.1  christos 	case R_PPC_DTPREL16_LO:
   4247  1.1  christos 	case R_PPC_DTPREL16_HI:
   4248  1.1  christos 	case R_PPC_DTPREL16_HA:
   4249  1.1  christos 	case R_PPC_TOC16:
   4250  1.1  christos 	  break;
   4251  1.1  christos 
   4252  1.1  christos 	case R_PPC_REL16:
   4253  1.1  christos 	case R_PPC_REL16_LO:
   4254  1.1  christos 	case R_PPC_REL16_HI:
   4255  1.1  christos 	case R_PPC_REL16_HA:
   4256  1.1  christos 	  ppc_elf_tdata (abfd)->has_rel16 = 1;
   4257  1.1  christos 	  break;
   4258  1.1  christos 
   4259  1.1  christos 	  /* These are just markers.  */
   4260  1.1  christos 	case R_PPC_TLS:
   4261  1.1  christos 	case R_PPC_EMB_MRKREF:
   4262  1.1  christos 	case R_PPC_NONE:
   4263  1.1  christos 	case R_PPC_max:
   4264  1.1  christos 	case R_PPC_RELAX:
   4265  1.1  christos 	case R_PPC_RELAX_PLT:
   4266  1.1  christos 	case R_PPC_RELAX_PLTREL24:
   4267  1.1  christos 	  break;
   4268  1.1  christos 
   4269  1.1  christos 	  /* These should only appear in dynamic objects.  */
   4270  1.1  christos 	case R_PPC_COPY:
   4271  1.1  christos 	case R_PPC_GLOB_DAT:
   4272  1.1  christos 	case R_PPC_JMP_SLOT:
   4273  1.1  christos 	case R_PPC_RELATIVE:
   4274  1.1  christos 	case R_PPC_IRELATIVE:
   4275  1.1  christos 	  break;
   4276  1.1  christos 
   4277  1.1  christos 	  /* These aren't handled yet.  We'll report an error later.  */
   4278  1.1  christos 	case R_PPC_ADDR30:
   4279  1.1  christos 	case R_PPC_EMB_RELSEC16:
   4280  1.1  christos 	case R_PPC_EMB_RELST_LO:
   4281  1.1  christos 	case R_PPC_EMB_RELST_HI:
   4282  1.1  christos 	case R_PPC_EMB_RELST_HA:
   4283  1.1  christos 	case R_PPC_EMB_BIT_FLD:
   4284  1.1  christos 	  break;
   4285  1.1  christos 
   4286  1.1  christos 	  /* This refers only to functions defined in the shared library.  */
   4287  1.1  christos 	case R_PPC_LOCAL24PC:
   4288  1.1  christos 	  if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET)
   4289  1.1  christos 	    {
   4290  1.1  christos 	      htab->plt_type = PLT_OLD;
   4291  1.1  christos 	      htab->old_bfd = abfd;
   4292  1.1  christos 	    }
   4293  1.1  christos 	  break;
   4294  1.1  christos 
   4295  1.1  christos 	  /* This relocation describes the C++ object vtable hierarchy.
   4296  1.1  christos 	     Reconstruct it for later use during GC.  */
   4297  1.1  christos 	case R_PPC_GNU_VTINHERIT:
   4298  1.1  christos 	  if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
   4299  1.1  christos 	    return FALSE;
   4300  1.1  christos 	  break;
   4301  1.1  christos 
   4302  1.1  christos 	  /* This relocation describes which C++ vtable entries are actually
   4303  1.1  christos 	     used.  Record for later use during GC.  */
   4304  1.1  christos 	case R_PPC_GNU_VTENTRY:
   4305  1.1  christos 	  BFD_ASSERT (h != NULL);
   4306  1.1  christos 	  if (h != NULL
   4307  1.1  christos 	      && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
   4308  1.1  christos 	    return FALSE;
   4309  1.1  christos 	  break;
   4310  1.1  christos 
   4311  1.1  christos 	  /* We shouldn't really be seeing these.  */
   4312  1.1  christos 	case R_PPC_TPREL32:
   4313  1.1  christos 	case R_PPC_TPREL16:
   4314  1.1  christos 	case R_PPC_TPREL16_LO:
   4315  1.1  christos 	case R_PPC_TPREL16_HI:
   4316  1.1  christos 	case R_PPC_TPREL16_HA:
   4317  1.1  christos 	  if (!info->executable)
   4318  1.1  christos 	    info->flags |= DF_STATIC_TLS;
   4319  1.1  christos 	  goto dodyn;
   4320  1.1  christos 
   4321  1.1  christos 	  /* Nor these.  */
   4322  1.1  christos 	case R_PPC_DTPMOD32:
   4323  1.1  christos 	case R_PPC_DTPREL32:
   4324  1.1  christos 	  goto dodyn;
   4325  1.1  christos 
   4326  1.1  christos 	case R_PPC_REL32:
   4327  1.1  christos 	  if (h == NULL
   4328  1.1  christos 	      && got2 != NULL
   4329  1.1  christos 	      && (sec->flags & SEC_CODE) != 0
   4330  1.1  christos 	      && info->shared
   4331  1.1  christos 	      && htab->plt_type == PLT_UNSET)
   4332  1.1  christos 	    {
   4333  1.1  christos 	      /* Old -fPIC gcc code has .long LCTOC1-LCFx just before
   4334  1.1  christos 		 the start of a function, which assembles to a REL32
   4335  1.1  christos 		 reference to .got2.  If we detect one of these, then
   4336  1.1  christos 		 force the old PLT layout because the linker cannot
   4337  1.1  christos 		 reliably deduce the GOT pointer value needed for
   4338  1.1  christos 		 PLT call stubs.  */
   4339  1.1  christos 	      asection *s;
   4340  1.1  christos 	      Elf_Internal_Sym *isym;
   4341  1.1  christos 
   4342  1.1  christos 	      isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4343  1.1  christos 					    abfd, r_symndx);
   4344  1.1  christos 	      if (isym == NULL)
   4345  1.1  christos 		return FALSE;
   4346  1.1  christos 
   4347  1.1  christos 	      s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4348  1.1  christos 	      if (s == got2)
   4349  1.1  christos 		{
   4350  1.1  christos 		  htab->plt_type = PLT_OLD;
   4351  1.1  christos 		  htab->old_bfd = abfd;
   4352  1.1  christos 		}
   4353  1.1  christos 	    }
   4354  1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   4355  1.1  christos 	    break;
   4356  1.1  christos 	  /* fall through */
   4357  1.1  christos 
   4358  1.1  christos 	case R_PPC_ADDR32:
   4359  1.1  christos 	case R_PPC_ADDR16:
   4360  1.1  christos 	case R_PPC_ADDR16_LO:
   4361  1.1  christos 	case R_PPC_ADDR16_HI:
   4362  1.1  christos 	case R_PPC_ADDR16_HA:
   4363  1.1  christos 	case R_PPC_UADDR32:
   4364  1.1  christos 	case R_PPC_UADDR16:
   4365  1.1  christos 	  if (h != NULL && !info->shared)
   4366  1.1  christos 	    {
   4367  1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4368  1.1  christos 		 a function defined in a dynamic object.  */
   4369  1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4370  1.1  christos 		return FALSE;
   4371  1.1  christos 
   4372  1.1  christos 	      /* We may need a copy reloc too.  */
   4373  1.1  christos 	      h->non_got_ref = 1;
   4374  1.1  christos 	      h->pointer_equality_needed = 1;
   4375  1.1  christos 	    }
   4376  1.1  christos 	  goto dodyn;
   4377  1.1  christos 
   4378  1.1  christos 	case R_PPC_REL24:
   4379  1.1  christos 	case R_PPC_REL14:
   4380  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   4381  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   4382  1.1  christos 	  if (h == NULL)
   4383  1.1  christos 	    break;
   4384  1.1  christos 	  if (h == htab->elf.hgot)
   4385  1.1  christos 	    {
   4386  1.1  christos 	      if (htab->plt_type == PLT_UNSET)
   4387  1.1  christos 		{
   4388  1.1  christos 		  htab->plt_type = PLT_OLD;
   4389  1.1  christos 		  htab->old_bfd = abfd;
   4390  1.1  christos 		}
   4391  1.1  christos 	      break;
   4392  1.1  christos 	    }
   4393  1.1  christos 	  /* fall through */
   4394  1.1  christos 
   4395  1.1  christos 	case R_PPC_ADDR24:
   4396  1.1  christos 	case R_PPC_ADDR14:
   4397  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   4398  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   4399  1.1  christos 	  if (h != NULL && !info->shared)
   4400  1.1  christos 	    {
   4401  1.1  christos 	      /* We may need a plt entry if the symbol turns out to be
   4402  1.1  christos 		 a function defined in a dynamic object.  */
   4403  1.1  christos 	      h->needs_plt = 1;
   4404  1.1  christos 	      if (!update_plt_info (abfd, &h->plt.plist, NULL, 0))
   4405  1.1  christos 		return FALSE;
   4406  1.1  christos 	      break;
   4407  1.1  christos 	    }
   4408  1.1  christos 
   4409  1.1  christos 	dodyn:
   4410  1.1  christos 	  /* If we are creating a shared library, and this is a reloc
   4411  1.1  christos 	     against a global symbol, or a non PC relative reloc
   4412  1.1  christos 	     against a local symbol, then we need to copy the reloc
   4413  1.1  christos 	     into the shared library.  However, if we are linking with
   4414  1.1  christos 	     -Bsymbolic, we do not need to copy a reloc against a
   4415  1.1  christos 	     global symbol which is defined in an object we are
   4416  1.1  christos 	     including in the link (i.e., DEF_REGULAR is set).  At
   4417  1.1  christos 	     this point we have not seen all the input files, so it is
   4418  1.1  christos 	     possible that DEF_REGULAR is not set now but will be set
   4419  1.1  christos 	     later (it is never cleared).  In case of a weak definition,
   4420  1.1  christos 	     DEF_REGULAR may be cleared later by a strong definition in
   4421  1.1  christos 	     a shared library.  We account for that possibility below by
   4422  1.1  christos 	     storing information in the dyn_relocs field of the hash
   4423  1.1  christos 	     table entry.  A similar situation occurs when creating
   4424  1.1  christos 	     shared libraries and symbol visibility changes render the
   4425  1.1  christos 	     symbol local.
   4426  1.1  christos 
   4427  1.1  christos 	     If on the other hand, we are creating an executable, we
   4428  1.1  christos 	     may need to keep relocations for symbols satisfied by a
   4429  1.1  christos 	     dynamic library if we manage to avoid copy relocs for the
   4430  1.1  christos 	     symbol.  */
   4431  1.1  christos 	  if ((info->shared
   4432  1.1  christos 	       && (must_be_dyn_reloc (info, r_type)
   4433  1.1  christos 		   || (h != NULL
   4434  1.1  christos 		       && (!SYMBOLIC_BIND (info, h)
   4435  1.1  christos 			   || h->root.type == bfd_link_hash_defweak
   4436  1.1  christos 			   || !h->def_regular))))
   4437  1.1  christos 	      || (ELIMINATE_COPY_RELOCS
   4438  1.1  christos 		  && !info->shared
   4439  1.1  christos 		  && h != NULL
   4440  1.1  christos 		  && (h->root.type == bfd_link_hash_defweak
   4441  1.1  christos 		      || !h->def_regular)))
   4442  1.1  christos 	    {
   4443  1.1  christos #ifdef DEBUG
   4444  1.1  christos 	      fprintf (stderr,
   4445  1.1  christos 		       "ppc_elf_check_relocs needs to "
   4446  1.1  christos 		       "create relocation for %s\n",
   4447  1.1  christos 		       (h && h->root.root.string
   4448  1.1  christos 			? h->root.root.string : "<unknown>"));
   4449  1.1  christos #endif
   4450  1.1  christos 	      if (sreloc == NULL)
   4451  1.1  christos 		{
   4452  1.1  christos 		  if (htab->elf.dynobj == NULL)
   4453  1.1  christos 		    htab->elf.dynobj = abfd;
   4454  1.1  christos 
   4455  1.1  christos 		  sreloc = _bfd_elf_make_dynamic_reloc_section
   4456  1.1  christos 		    (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
   4457  1.1  christos 
   4458  1.1  christos 		  if (sreloc == NULL)
   4459  1.1  christos 		    return FALSE;
   4460  1.1  christos 		}
   4461  1.1  christos 
   4462  1.1  christos 	      /* If this is a global symbol, we count the number of
   4463  1.1  christos 		 relocations we need for this symbol.  */
   4464  1.1  christos 	      if (h != NULL)
   4465  1.1  christos 		{
   4466  1.1  christos 		  struct elf_dyn_relocs *p;
   4467  1.1  christos 		  struct elf_dyn_relocs **rel_head;
   4468  1.1  christos 
   4469  1.1  christos 		  rel_head = &ppc_elf_hash_entry (h)->dyn_relocs;
   4470  1.1  christos 		  p = *rel_head;
   4471  1.1  christos 		  if (p == NULL || p->sec != sec)
   4472  1.1  christos 		    {
   4473  1.1  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4474  1.1  christos 		      if (p == NULL)
   4475  1.1  christos 			return FALSE;
   4476  1.1  christos 		      p->next = *rel_head;
   4477  1.1  christos 		      *rel_head = p;
   4478  1.1  christos 		      p->sec = sec;
   4479  1.1  christos 		      p->count = 0;
   4480  1.1  christos 		      p->pc_count = 0;
   4481  1.1  christos 		    }
   4482  1.1  christos 		  p->count += 1;
   4483  1.1  christos 		  if (!must_be_dyn_reloc (info, r_type))
   4484  1.1  christos 		    p->pc_count += 1;
   4485  1.1  christos 		}
   4486  1.1  christos 	      else
   4487  1.1  christos 		{
   4488  1.1  christos 		  /* Track dynamic relocs needed for local syms too.
   4489  1.1  christos 		     We really need local syms available to do this
   4490  1.1  christos 		     easily.  Oh well.  */
   4491  1.1  christos 		  struct ppc_dyn_relocs *p;
   4492  1.1  christos 		  struct ppc_dyn_relocs **rel_head;
   4493  1.1  christos 		  bfd_boolean is_ifunc;
   4494  1.1  christos 		  asection *s;
   4495  1.1  christos 		  void *vpp;
   4496  1.1  christos 		  Elf_Internal_Sym *isym;
   4497  1.1  christos 
   4498  1.1  christos 		  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
   4499  1.1  christos 						abfd, r_symndx);
   4500  1.1  christos 		  if (isym == NULL)
   4501  1.1  christos 		    return FALSE;
   4502  1.1  christos 
   4503  1.1  christos 		  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
   4504  1.1  christos 		  if (s == NULL)
   4505  1.1  christos 		    s = sec;
   4506  1.1  christos 
   4507  1.1  christos 		  vpp = &elf_section_data (s)->local_dynrel;
   4508  1.1  christos 		  rel_head = (struct ppc_dyn_relocs **) vpp;
   4509  1.1  christos 		  is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC;
   4510  1.1  christos 		  p = *rel_head;
   4511  1.1  christos 		  if (p != NULL && p->sec == sec && p->ifunc != is_ifunc)
   4512  1.1  christos 		    p = p->next;
   4513  1.1  christos 		  if (p == NULL || p->sec != sec || p->ifunc != is_ifunc)
   4514  1.1  christos 		    {
   4515  1.1  christos 		      p = bfd_alloc (htab->elf.dynobj, sizeof *p);
   4516  1.1  christos 		      if (p == NULL)
   4517  1.1  christos 			return FALSE;
   4518  1.1  christos 		      p->next = *rel_head;
   4519  1.1  christos 		      *rel_head = p;
   4520  1.1  christos 		      p->sec = sec;
   4521  1.1  christos 		      p->ifunc = is_ifunc;
   4522  1.1  christos 		      p->count = 0;
   4523  1.1  christos 		    }
   4524  1.1  christos 		  p->count += 1;
   4525  1.1  christos 		}
   4526  1.1  christos 	    }
   4527  1.1  christos 
   4528  1.1  christos 	  break;
   4529  1.1  christos 	}
   4530  1.1  christos     }
   4531  1.1  christos 
   4532  1.1  christos   return TRUE;
   4533  1.1  christos }
   4534  1.1  christos 
   4535  1.1  christos 
   4537  1.1  christos /* Merge object attributes from IBFD into OBFD.  Raise an error if
   4538  1.1  christos    there are conflicting attributes.  */
   4539  1.1  christos static bfd_boolean
   4540  1.1  christos ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd)
   4541  1.1  christos {
   4542  1.1  christos   obj_attribute *in_attr, *in_attrs;
   4543  1.1  christos   obj_attribute *out_attr, *out_attrs;
   4544  1.1  christos 
   4545  1.1  christos   if (!elf_known_obj_attributes_proc (obfd)[0].i)
   4546  1.1  christos     {
   4547  1.1  christos       /* This is the first object.  Copy the attributes.  */
   4548  1.1  christos       _bfd_elf_copy_obj_attributes (ibfd, obfd);
   4549  1.1  christos 
   4550  1.1  christos       /* Use the Tag_null value to indicate the attributes have been
   4551  1.1  christos 	 initialized.  */
   4552  1.1  christos       elf_known_obj_attributes_proc (obfd)[0].i = 1;
   4553  1.1  christos 
   4554  1.1  christos       return TRUE;
   4555  1.1  christos     }
   4556  1.1  christos 
   4557  1.1  christos   in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
   4558  1.1  christos   out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
   4559  1.1  christos 
   4560  1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge
   4561  1.1  christos      non-conflicting ones.  */
   4562  1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_FP];
   4563  1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_FP];
   4564  1.1  christos   if (in_attr->i != out_attr->i)
   4565  1.1  christos     {
   4566  1.1  christos       out_attr->type = 1;
   4567  1.1  christos       if (out_attr->i == 0)
   4568  1.1  christos 	out_attr->i = in_attr->i;
   4569  1.1  christos       else if (in_attr->i == 0)
   4570  1.1  christos 	;
   4571  1.1  christos       else if (out_attr->i == 1 && in_attr->i == 2)
   4572  1.1  christos 	_bfd_error_handler
   4573  1.1  christos 	  (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd);
   4574  1.1  christos       else if (out_attr->i == 1 && in_attr->i == 3)
   4575  1.1  christos 	_bfd_error_handler
   4576  1.1  christos 	  (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
   4577  1.1  christos 	  obfd, ibfd);
   4578  1.1  christos       else if (out_attr->i == 3 && in_attr->i == 1)
   4579  1.1  christos 	_bfd_error_handler
   4580  1.1  christos 	  (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"),
   4581  1.1  christos 	  ibfd, obfd);
   4582  1.1  christos       else if (out_attr->i == 3 && in_attr->i == 2)
   4583  1.1  christos 	_bfd_error_handler
   4584  1.1  christos 	  (_("Warning: %B uses soft float, %B uses single-precision hard float"),
   4585  1.1  christos 	  ibfd, obfd);
   4586  1.1  christos       else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3))
   4587  1.1  christos 	_bfd_error_handler
   4588  1.1  christos 	  (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd);
   4589  1.1  christos       else if (in_attr->i > 3)
   4590  1.1  christos 	_bfd_error_handler
   4591  1.1  christos 	  (_("Warning: %B uses unknown floating point ABI %d"), ibfd,
   4592  1.1  christos 	   in_attr->i);
   4593  1.1  christos       else
   4594  1.1  christos 	_bfd_error_handler
   4595  1.1  christos 	  (_("Warning: %B uses unknown floating point ABI %d"), obfd,
   4596  1.1  christos 	   out_attr->i);
   4597  1.1  christos     }
   4598  1.1  christos 
   4599  1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and
   4600  1.1  christos      merge non-conflicting ones.  */
   4601  1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector];
   4602  1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector];
   4603  1.1  christos   if (in_attr->i != out_attr->i)
   4604  1.1  christos     {
   4605  1.1  christos       const char *in_abi = NULL, *out_abi = NULL;
   4606  1.1  christos 
   4607  1.1  christos       switch (in_attr->i)
   4608  1.1  christos 	{
   4609  1.1  christos 	case 1: in_abi = "generic"; break;
   4610  1.1  christos 	case 2: in_abi = "AltiVec"; break;
   4611  1.1  christos 	case 3: in_abi = "SPE"; break;
   4612  1.1  christos 	}
   4613  1.1  christos 
   4614  1.1  christos       switch (out_attr->i)
   4615  1.1  christos 	{
   4616  1.1  christos 	case 1: out_abi = "generic"; break;
   4617  1.1  christos 	case 2: out_abi = "AltiVec"; break;
   4618  1.1  christos 	case 3: out_abi = "SPE"; break;
   4619  1.1  christos 	}
   4620  1.1  christos 
   4621  1.1  christos       out_attr->type = 1;
   4622  1.1  christos       if (out_attr->i == 0)
   4623  1.1  christos 	out_attr->i = in_attr->i;
   4624  1.1  christos       else if (in_attr->i == 0)
   4625  1.1  christos 	;
   4626  1.1  christos       /* For now, allow generic to transition to AltiVec or SPE
   4627  1.1  christos 	 without a warning.  If GCC marked files with their stack
   4628  1.1  christos 	 alignment and used don't-care markings for files which are
   4629  1.1  christos 	 not affected by the vector ABI, we could warn about this
   4630  1.1  christos 	 case too.  */
   4631  1.1  christos       else if (out_attr->i == 1)
   4632  1.1  christos 	out_attr->i = in_attr->i;
   4633  1.1  christos       else if (in_attr->i == 1)
   4634  1.1  christos 	;
   4635  1.1  christos       else if (in_abi == NULL)
   4636  1.1  christos 	_bfd_error_handler
   4637  1.1  christos 	  (_("Warning: %B uses unknown vector ABI %d"), ibfd,
   4638  1.1  christos 	   in_attr->i);
   4639  1.1  christos       else if (out_abi == NULL)
   4640  1.1  christos 	_bfd_error_handler
   4641  1.1  christos 	  (_("Warning: %B uses unknown vector ABI %d"), obfd,
   4642  1.1  christos 	   in_attr->i);
   4643  1.1  christos       else
   4644  1.1  christos 	_bfd_error_handler
   4645  1.1  christos 	  (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""),
   4646  1.1  christos 	   ibfd, obfd, in_abi, out_abi);
   4647  1.1  christos     }
   4648  1.1  christos 
   4649  1.1  christos   /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes
   4650  1.1  christos      and merge non-conflicting ones.  */
   4651  1.1  christos   in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4652  1.1  christos   out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return];
   4653  1.1  christos   if (in_attr->i != out_attr->i)
   4654  1.1  christos     {
   4655  1.1  christos       out_attr->type = 1;
   4656  1.1  christos       if (out_attr->i == 0)
   4657  1.1  christos        out_attr->i = in_attr->i;
   4658  1.1  christos       else if (in_attr->i == 0)
   4659  1.1  christos        ;
   4660  1.1  christos       else if (out_attr->i == 1 && in_attr->i == 2)
   4661  1.1  christos        _bfd_error_handler
   4662  1.1  christos          (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd);
   4663  1.1  christos       else if (out_attr->i == 2 && in_attr->i == 1)
   4664  1.1  christos        _bfd_error_handler
   4665  1.1  christos          (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd);
   4666  1.1  christos       else if (in_attr->i > 2)
   4667  1.1  christos        _bfd_error_handler
   4668  1.1  christos          (_("Warning: %B uses unknown small structure return convention %d"), ibfd,
   4669  1.1  christos           in_attr->i);
   4670  1.1  christos       else
   4671  1.1  christos        _bfd_error_handler
   4672  1.1  christos          (_("Warning: %B uses unknown small structure return convention %d"), obfd,
   4673  1.1  christos           out_attr->i);
   4674  1.1  christos     }
   4675  1.1  christos 
   4676  1.1  christos   /* Merge Tag_compatibility attributes and any common GNU ones.  */
   4677  1.1  christos   _bfd_elf_merge_object_attributes (ibfd, obfd);
   4678  1.1  christos 
   4679  1.1  christos   return TRUE;
   4680  1.1  christos }
   4681  1.1  christos 
   4682  1.1  christos /* Merge backend specific data from an object file to the output
   4683  1.1  christos    object file when linking.  */
   4684  1.1  christos 
   4685  1.1  christos static bfd_boolean
   4686  1.1  christos ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
   4687  1.1  christos {
   4688  1.1  christos   flagword old_flags;
   4689  1.1  christos   flagword new_flags;
   4690  1.1  christos   bfd_boolean error;
   4691  1.1  christos 
   4692  1.1  christos   if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd))
   4693  1.1  christos     return TRUE;
   4694  1.1  christos 
   4695  1.1  christos   /* Check if we have the same endianness.  */
   4696  1.1  christos   if (! _bfd_generic_verify_endian_match (ibfd, obfd))
   4697  1.1  christos     return FALSE;
   4698  1.1  christos 
   4699  1.1  christos   if (!ppc_elf_merge_obj_attributes (ibfd, obfd))
   4700  1.1  christos     return FALSE;
   4701  1.1  christos 
   4702  1.1  christos   new_flags = elf_elfheader (ibfd)->e_flags;
   4703  1.1  christos   old_flags = elf_elfheader (obfd)->e_flags;
   4704  1.1  christos   if (!elf_flags_init (obfd))
   4705  1.1  christos     {
   4706  1.1  christos       /* First call, no flags set.  */
   4707  1.1  christos       elf_flags_init (obfd) = TRUE;
   4708  1.1  christos       elf_elfheader (obfd)->e_flags = new_flags;
   4709  1.1  christos     }
   4710  1.1  christos 
   4711  1.1  christos   /* Compatible flags are ok.  */
   4712  1.1  christos   else if (new_flags == old_flags)
   4713  1.1  christos     ;
   4714  1.1  christos 
   4715  1.1  christos   /* Incompatible flags.  */
   4716  1.1  christos   else
   4717  1.1  christos     {
   4718  1.1  christos       /* Warn about -mrelocatable mismatch.  Allow -mrelocatable-lib
   4719  1.1  christos 	 to be linked with either.  */
   4720  1.1  christos       error = FALSE;
   4721  1.1  christos       if ((new_flags & EF_PPC_RELOCATABLE) != 0
   4722  1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0)
   4723  1.1  christos 	{
   4724  1.1  christos 	  error = TRUE;
   4725  1.1  christos 	  (*_bfd_error_handler)
   4726  1.1  christos 	    (_("%B: compiled with -mrelocatable and linked with "
   4727  1.1  christos 	       "modules compiled normally"), ibfd);
   4728  1.1  christos 	}
   4729  1.1  christos       else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0
   4730  1.1  christos 	       && (old_flags & EF_PPC_RELOCATABLE) != 0)
   4731  1.1  christos 	{
   4732  1.1  christos 	  error = TRUE;
   4733  1.1  christos 	  (*_bfd_error_handler)
   4734  1.1  christos 	    (_("%B: compiled normally and linked with "
   4735  1.1  christos 	       "modules compiled with -mrelocatable"), ibfd);
   4736  1.1  christos 	}
   4737  1.1  christos 
   4738  1.1  christos       /* The output is -mrelocatable-lib iff both the input files are.  */
   4739  1.1  christos       if (! (new_flags & EF_PPC_RELOCATABLE_LIB))
   4740  1.1  christos 	elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB;
   4741  1.1  christos 
   4742  1.1  christos       /* The output is -mrelocatable iff it can't be -mrelocatable-lib,
   4743  1.1  christos 	 but each input file is either -mrelocatable or -mrelocatable-lib.  */
   4744  1.1  christos       if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB)
   4745  1.1  christos 	  && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))
   4746  1.1  christos 	  && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)))
   4747  1.1  christos 	elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE;
   4748  1.1  christos 
   4749  1.1  christos       /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if
   4750  1.1  christos 	 any module uses it.  */
   4751  1.1  christos       elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB);
   4752  1.1  christos 
   4753  1.1  christos       new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   4754  1.1  christos       old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB);
   4755  1.1  christos 
   4756  1.1  christos       /* Warn about any other mismatches.  */
   4757  1.1  christos       if (new_flags != old_flags)
   4758  1.1  christos 	{
   4759  1.1  christos 	  error = TRUE;
   4760  1.1  christos 	  (*_bfd_error_handler)
   4761  1.1  christos 	    (_("%B: uses different e_flags (0x%lx) fields "
   4762  1.1  christos 	       "than previous modules (0x%lx)"),
   4763  1.1  christos 	     ibfd, (long) new_flags, (long) old_flags);
   4764  1.1  christos 	}
   4765  1.1  christos 
   4766  1.1  christos       if (error)
   4767  1.1  christos 	{
   4768  1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   4769  1.1  christos 	  return FALSE;
   4770  1.1  christos 	}
   4771  1.1  christos     }
   4772  1.1  christos 
   4773  1.1  christos   return TRUE;
   4774  1.1  christos }
   4775  1.1  christos 
   4776  1.1  christos static void
   4777  1.1  christos ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *contents,
   4778  1.1  christos                  bfd_vma offset, bfd_vma relocation,
   4779  1.1  christos 		 split16_format_type split16_format)
   4780  1.1  christos 
   4781  1.1  christos {
   4782  1.1  christos   bfd_vma insn, top5, bottom11;
   4783  1.1  christos 
   4784  1.1  christos   insn = bfd_get_32 (output_bfd, contents + offset);
   4785  1.1  christos   top5 = relocation >> 11;
   4786  1.1  christos   top5 = top5 << (split16_format == split16a_type ? 20 : 16);
   4787  1.1  christos   bottom11 = relocation & 0x7ff;
   4788  1.1  christos   insn |= top5;
   4789  1.1  christos   insn |= bottom11;
   4790  1.1  christos   bfd_put_32 (output_bfd, insn, contents + offset);
   4791  1.1  christos }
   4792  1.1  christos 
   4793  1.1  christos 
   4794  1.1  christos /* Choose which PLT scheme to use, and set .plt flags appropriately.
   4796  1.1  christos    Returns -1 on error, 0 for old PLT, 1 for new PLT.  */
   4797  1.1  christos int
   4798  1.1  christos ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED,
   4799  1.1  christos 			   struct bfd_link_info *info,
   4800  1.1  christos 			   enum ppc_elf_plt_type plt_style,
   4801  1.1  christos 			   int emit_stub_syms)
   4802  1.1  christos {
   4803  1.1  christos   struct ppc_elf_link_hash_table *htab;
   4804  1.1  christos   flagword flags;
   4805  1.1  christos 
   4806  1.1  christos   htab = ppc_elf_hash_table (info);
   4807  1.1  christos 
   4808  1.1  christos   htab->emit_stub_syms = emit_stub_syms;
   4809  1.1  christos 
   4810  1.1  christos   if (htab->plt_type == PLT_UNSET)
   4811  1.1  christos     {
   4812  1.1  christos       struct elf_link_hash_entry *h;
   4813  1.1  christos 
   4814  1.1  christos       if (plt_style == PLT_OLD)
   4815  1.1  christos 	htab->plt_type = PLT_OLD;
   4816  1.1  christos       else if (info->shared
   4817  1.1  christos 	       && htab->elf.dynamic_sections_created
   4818  1.1  christos 	       && (h = elf_link_hash_lookup (&htab->elf, "_mcount",
   4819  1.1  christos 					     FALSE, FALSE, TRUE)) != NULL
   4820  1.1  christos 	       && (h->type == STT_FUNC
   4821  1.1  christos 		   || h->needs_plt)
   4822  1.1  christos 	       && h->ref_regular
   4823  1.1  christos 	       && !(SYMBOL_CALLS_LOCAL (info, h)
   4824  1.1  christos 		    || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
   4825  1.1  christos 			&& h->root.type == bfd_link_hash_undefweak)))
   4826  1.1  christos 	{
   4827  1.1  christos 	  /* Profiling of shared libs (and pies) is not supported with
   4828  1.1  christos 	     secure plt, because ppc32 does profiling before a
   4829  1.1  christos 	     function prologue and a secure plt pic call stubs needs
   4830  1.1  christos 	     r30 to be set up.  */
   4831  1.1  christos 	  htab->plt_type = PLT_OLD;
   4832  1.1  christos 	}
   4833  1.1  christos       else
   4834  1.1  christos 	{
   4835  1.1  christos 	  bfd *ibfd;
   4836  1.1  christos 	  enum ppc_elf_plt_type plt_type = plt_style;
   4837  1.1  christos 
   4838  1.1  christos 	  /* Look through the reloc flags left by ppc_elf_check_relocs.
   4839  1.1  christos 	     Use the old style bss plt if a file makes plt calls
   4840  1.1  christos 	     without using the new relocs, and if ld isn't given
   4841  1.1  christos 	     --secure-plt and we never see REL16 relocs.  */
   4842  1.1  christos 	  if (plt_type == PLT_UNSET)
   4843  1.1  christos 	    plt_type = PLT_OLD;
   4844  1.1  christos 	  for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
   4845  1.1  christos 	    if (is_ppc_elf (ibfd))
   4846  1.1  christos 	      {
   4847  1.1  christos 		if (ppc_elf_tdata (ibfd)->has_rel16)
   4848  1.1  christos 		  plt_type = PLT_NEW;
   4849  1.1  christos 		else if (ppc_elf_tdata (ibfd)->makes_plt_call)
   4850  1.1  christos 		  {
   4851  1.1  christos 		    plt_type = PLT_OLD;
   4852  1.1  christos 		    htab->old_bfd = ibfd;
   4853  1.1  christos 		    break;
   4854  1.1  christos 		  }
   4855  1.1  christos 	      }
   4856  1.1  christos 	  htab->plt_type = plt_type;
   4857  1.1  christos 	}
   4858  1.1  christos     }
   4859  1.1  christos   if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW)
   4860  1.1  christos     {
   4861  1.1  christos       if (htab->old_bfd != NULL)
   4862  1.1  christos 	info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"),
   4863  1.1  christos 				htab->old_bfd);
   4864  1.1  christos       else
   4865  1.1  christos 	info->callbacks->einfo (_("%P: bss-plt forced by profiling\n"));
   4866  1.1  christos     }
   4867  1.1  christos 
   4868  1.1  christos   BFD_ASSERT (htab->plt_type != PLT_VXWORKS);
   4869  1.1  christos 
   4870  1.1  christos   if (htab->plt_type == PLT_NEW)
   4871  1.1  christos     {
   4872  1.1  christos       flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
   4873  1.1  christos 	       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
   4874  1.1  christos 
   4875  1.1  christos       /* The new PLT is a loaded section.  */
   4876  1.1  christos       if (htab->plt != NULL
   4877  1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags))
   4878  1.1  christos 	return -1;
   4879  1.1  christos 
   4880  1.1  christos       /* The new GOT is not executable.  */
   4881  1.1  christos       if (htab->got != NULL
   4882  1.1  christos 	  && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags))
   4883  1.1  christos 	return -1;
   4884  1.1  christos     }
   4885  1.1  christos   else
   4886  1.1  christos     {
   4887  1.1  christos       /* Stop an unused .glink section from affecting .text alignment.  */
   4888  1.1  christos       if (htab->glink != NULL
   4889  1.1  christos 	  && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0))
   4890  1.1  christos 	return -1;
   4891  1.1  christos     }
   4892  1.1  christos   return htab->plt_type == PLT_NEW;
   4893  1.1  christos }
   4894  1.1  christos 
   4895  1.1  christos /* Return the section that should be marked against GC for a given
   4897  1.1  christos    relocation.  */
   4898  1.1  christos 
   4899  1.1  christos static asection *
   4900  1.1  christos ppc_elf_gc_mark_hook (asection *sec,
   4901  1.1  christos 		      struct bfd_link_info *info,
   4902  1.1  christos 		      Elf_Internal_Rela *rel,
   4903  1.1  christos 		      struct elf_link_hash_entry *h,
   4904  1.1  christos 		      Elf_Internal_Sym *sym)
   4905  1.1  christos {
   4906  1.1  christos   if (h != NULL)
   4907  1.1  christos     switch (ELF32_R_TYPE (rel->r_info))
   4908  1.1  christos       {
   4909  1.1  christos       case R_PPC_GNU_VTINHERIT:
   4910  1.1  christos       case R_PPC_GNU_VTENTRY:
   4911  1.1  christos 	return NULL;
   4912  1.1  christos       }
   4913  1.1  christos 
   4914  1.1  christos   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
   4915  1.1  christos }
   4916  1.1  christos 
   4917  1.1  christos /* Update the got, plt and dynamic reloc reference counts for the
   4918  1.1  christos    section being removed.  */
   4919  1.1  christos 
   4920  1.1  christos static bfd_boolean
   4921  1.1  christos ppc_elf_gc_sweep_hook (bfd *abfd,
   4922  1.1  christos 		       struct bfd_link_info *info,
   4923  1.1  christos 		       asection *sec,
   4924  1.1  christos 		       const Elf_Internal_Rela *relocs)
   4925  1.1  christos {
   4926  1.1  christos   struct ppc_elf_link_hash_table *htab;
   4927  1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   4928  1.1  christos   struct elf_link_hash_entry **sym_hashes;
   4929  1.1  christos   bfd_signed_vma *local_got_refcounts;
   4930  1.1  christos   const Elf_Internal_Rela *rel, *relend;
   4931  1.1  christos   asection *got2;
   4932  1.1  christos 
   4933  1.1  christos   if (info->relocatable)
   4934  1.1  christos     return TRUE;
   4935  1.1  christos 
   4936  1.1  christos   if ((sec->flags & SEC_ALLOC) == 0)
   4937  1.1  christos     return TRUE;
   4938  1.1  christos 
   4939  1.1  christos   elf_section_data (sec)->local_dynrel = NULL;
   4940  1.1  christos 
   4941  1.1  christos   htab = ppc_elf_hash_table (info);
   4942  1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   4943  1.1  christos   sym_hashes = elf_sym_hashes (abfd);
   4944  1.1  christos   local_got_refcounts = elf_local_got_refcounts (abfd);
   4945  1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   4946  1.1  christos 
   4947  1.1  christos   relend = relocs + sec->reloc_count;
   4948  1.1  christos   for (rel = relocs; rel < relend; rel++)
   4949  1.1  christos     {
   4950  1.1  christos       unsigned long r_symndx;
   4951  1.1  christos       enum elf_ppc_reloc_type r_type;
   4952  1.1  christos       struct elf_link_hash_entry *h = NULL;
   4953  1.1  christos 
   4954  1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   4955  1.1  christos       if (r_symndx >= symtab_hdr->sh_info)
   4956  1.1  christos 	{
   4957  1.1  christos 	  struct elf_dyn_relocs **pp, *p;
   4958  1.1  christos 	  struct ppc_elf_link_hash_entry *eh;
   4959  1.1  christos 
   4960  1.1  christos 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   4961  1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   4962  1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   4963  1.1  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   4964  1.1  christos 	  eh = (struct ppc_elf_link_hash_entry *) h;
   4965  1.1  christos 
   4966  1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
   4967  1.1  christos 	    if (p->sec == sec)
   4968  1.1  christos 	      {
   4969  1.1  christos 		/* Everything must go for SEC.  */
   4970  1.1  christos 		*pp = p->next;
   4971  1.1  christos 		break;
   4972  1.1  christos 	      }
   4973  1.1  christos 	}
   4974  1.1  christos 
   4975  1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   4976  1.1  christos       if (!htab->is_vxworks
   4977  1.1  christos 	  && h == NULL
   4978  1.1  christos 	  && local_got_refcounts != NULL
   4979  1.1  christos 	  && (!info->shared
   4980  1.1  christos 	      || is_branch_reloc (r_type)))
   4981  1.1  christos 	{
   4982  1.1  christos 	  struct plt_entry **local_plt = (struct plt_entry **)
   4983  1.1  christos 	    (local_got_refcounts + symtab_hdr->sh_info);
   4984  1.1  christos 	  char *local_got_tls_masks = (char *)
   4985  1.1  christos 	    (local_plt + symtab_hdr->sh_info);
   4986  1.1  christos 	  if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0)
   4987  1.1  christos 	    {
   4988  1.1  christos 	      struct plt_entry **ifunc = local_plt + r_symndx;
   4989  1.1  christos 	      bfd_vma addend = 0;
   4990  1.1  christos 	      struct plt_entry *ent;
   4991  1.1  christos 
   4992  1.1  christos 	      if (r_type == R_PPC_PLTREL24 && info->shared)
   4993  1.1  christos 		addend = rel->r_addend;
   4994  1.1  christos 	      ent = find_plt_ent (ifunc, got2, addend);
   4995  1.1  christos 	      if (ent->plt.refcount > 0)
   4996  1.1  christos 		ent->plt.refcount -= 1;
   4997  1.1  christos 	      continue;
   4998  1.1  christos 	    }
   4999  1.1  christos 	}
   5000  1.1  christos 
   5001  1.1  christos       switch (r_type)
   5002  1.1  christos 	{
   5003  1.1  christos 	case R_PPC_GOT_TLSLD16:
   5004  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   5005  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   5006  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   5007  1.1  christos 	case R_PPC_GOT_TLSGD16:
   5008  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   5009  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   5010  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   5011  1.1  christos 	case R_PPC_GOT_TPREL16:
   5012  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   5013  1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   5014  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   5015  1.1  christos 	case R_PPC_GOT_DTPREL16:
   5016  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   5017  1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   5018  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   5019  1.1  christos 	case R_PPC_GOT16:
   5020  1.1  christos 	case R_PPC_GOT16_LO:
   5021  1.1  christos 	case R_PPC_GOT16_HI:
   5022  1.1  christos 	case R_PPC_GOT16_HA:
   5023  1.1  christos 	  if (h != NULL)
   5024  1.1  christos 	    {
   5025  1.1  christos 	      if (h->got.refcount > 0)
   5026  1.1  christos 		h->got.refcount--;
   5027  1.1  christos 	      if (!info->shared)
   5028  1.1  christos 		{
   5029  1.1  christos 		  struct plt_entry *ent;
   5030  1.1  christos 
   5031  1.1  christos 		  ent = find_plt_ent (&h->plt.plist, NULL, 0);
   5032  1.1  christos 		  if (ent != NULL && ent->plt.refcount > 0)
   5033  1.1  christos 		    ent->plt.refcount -= 1;
   5034  1.1  christos 		}
   5035  1.1  christos 	    }
   5036  1.1  christos 	  else if (local_got_refcounts != NULL)
   5037  1.1  christos 	    {
   5038  1.1  christos 	      if (local_got_refcounts[r_symndx] > 0)
   5039  1.1  christos 		local_got_refcounts[r_symndx]--;
   5040  1.1  christos 	    }
   5041  1.1  christos 	  break;
   5042  1.1  christos 
   5043  1.1  christos 	case R_PPC_REL24:
   5044  1.1  christos 	case R_PPC_REL14:
   5045  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   5046  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   5047  1.1  christos 	case R_PPC_REL32:
   5048  1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   5049  1.1  christos 	    break;
   5050  1.1  christos 	  /* Fall thru */
   5051  1.1  christos 
   5052  1.1  christos 	case R_PPC_ADDR32:
   5053  1.1  christos 	case R_PPC_ADDR24:
   5054  1.1  christos 	case R_PPC_ADDR16:
   5055  1.1  christos 	case R_PPC_ADDR16_LO:
   5056  1.1  christos 	case R_PPC_ADDR16_HI:
   5057  1.1  christos 	case R_PPC_ADDR16_HA:
   5058  1.1  christos 	case R_PPC_ADDR14:
   5059  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   5060  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   5061  1.1  christos 	case R_PPC_UADDR32:
   5062  1.1  christos 	case R_PPC_UADDR16:
   5063  1.1  christos 	  if (info->shared)
   5064  1.1  christos 	    break;
   5065  1.1  christos 
   5066  1.1  christos 	case R_PPC_PLT32:
   5067  1.1  christos 	case R_PPC_PLTREL24:
   5068  1.1  christos 	case R_PPC_PLTREL32:
   5069  1.1  christos 	case R_PPC_PLT16_LO:
   5070  1.1  christos 	case R_PPC_PLT16_HI:
   5071  1.1  christos 	case R_PPC_PLT16_HA:
   5072  1.1  christos 	  if (h != NULL)
   5073  1.1  christos 	    {
   5074  1.1  christos 	      bfd_vma addend = 0;
   5075  1.1  christos 	      struct plt_entry *ent;
   5076  1.1  christos 
   5077  1.1  christos 	      if (r_type == R_PPC_PLTREL24 && info->shared)
   5078  1.1  christos 		addend = rel->r_addend;
   5079  1.1  christos 	      ent = find_plt_ent (&h->plt.plist, got2, addend);
   5080  1.1  christos 	      if (ent != NULL && ent->plt.refcount > 0)
   5081  1.1  christos 		ent->plt.refcount -= 1;
   5082  1.1  christos 	    }
   5083  1.1  christos 	  break;
   5084  1.1  christos 
   5085  1.1  christos 	default:
   5086  1.1  christos 	  break;
   5087  1.1  christos 	}
   5088  1.1  christos     }
   5089  1.1  christos   return TRUE;
   5090  1.1  christos }
   5091  1.1  christos 
   5092  1.1  christos /* Set plt output section type, htab->tls_get_addr, and call the
   5094  1.1  christos    generic ELF tls_setup function.  */
   5095  1.1  christos 
   5096  1.1  christos asection *
   5097  1.1  christos ppc_elf_tls_setup (bfd *obfd,
   5098  1.1  christos 		   struct bfd_link_info *info,
   5099  1.1  christos 		   int no_tls_get_addr_opt)
   5100  1.1  christos {
   5101  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5102  1.1  christos 
   5103  1.1  christos   htab = ppc_elf_hash_table (info);
   5104  1.1  christos   htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr",
   5105  1.1  christos 					     FALSE, FALSE, TRUE);
   5106  1.1  christos   if (!no_tls_get_addr_opt)
   5107  1.1  christos     {
   5108  1.1  christos       struct elf_link_hash_entry *opt, *tga;
   5109  1.1  christos       opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt",
   5110  1.1  christos 				  FALSE, FALSE, TRUE);
   5111  1.1  christos       if (opt != NULL
   5112  1.1  christos 	  && (opt->root.type == bfd_link_hash_defined
   5113  1.1  christos 	      || opt->root.type == bfd_link_hash_defweak))
   5114  1.1  christos 	{
   5115  1.1  christos 	  /* If glibc supports an optimized __tls_get_addr call stub,
   5116  1.1  christos 	     signalled by the presence of __tls_get_addr_opt, and we'll
   5117  1.1  christos 	     be calling __tls_get_addr via a plt call stub, then
   5118  1.1  christos 	     make __tls_get_addr point to __tls_get_addr_opt.  */
   5119  1.1  christos 	  tga = htab->tls_get_addr;
   5120  1.1  christos 	  if (htab->elf.dynamic_sections_created
   5121  1.1  christos 	      && tga != NULL
   5122  1.1  christos 	      && (tga->type == STT_FUNC
   5123  1.1  christos 		  || tga->needs_plt)
   5124  1.1  christos 	      && !(SYMBOL_CALLS_LOCAL (info, tga)
   5125  1.1  christos 		   || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT
   5126  1.1  christos 		       && tga->root.type == bfd_link_hash_undefweak)))
   5127  1.1  christos 	    {
   5128  1.1  christos 	      struct plt_entry *ent;
   5129  1.1  christos 	      for (ent = tga->plt.plist; ent != NULL; ent = ent->next)
   5130  1.1  christos 		if (ent->plt.refcount > 0)
   5131  1.1  christos 		  break;
   5132  1.1  christos 	      if (ent != NULL)
   5133  1.1  christos 		{
   5134  1.1  christos 		  tga->root.type = bfd_link_hash_indirect;
   5135  1.1  christos 		  tga->root.u.i.link = &opt->root;
   5136  1.1  christos 		  ppc_elf_copy_indirect_symbol (info, opt, tga);
   5137  1.1  christos 		  if (opt->dynindx != -1)
   5138  1.1  christos 		    {
   5139  1.1  christos 		      /* Use __tls_get_addr_opt in dynamic relocations.  */
   5140  1.1  christos 		      opt->dynindx = -1;
   5141  1.1  christos 		      _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   5142  1.1  christos 					      opt->dynstr_index);
   5143  1.1  christos 		      if (!bfd_elf_link_record_dynamic_symbol (info, opt))
   5144  1.1  christos 			return FALSE;
   5145  1.1  christos 		    }
   5146  1.1  christos 		  htab->tls_get_addr = opt;
   5147  1.1  christos 		}
   5148  1.1  christos 	    }
   5149  1.1  christos 	}
   5150  1.1  christos       else
   5151  1.1  christos 	no_tls_get_addr_opt = TRUE;
   5152  1.1  christos     }
   5153  1.1  christos   htab->no_tls_get_addr_opt = no_tls_get_addr_opt;
   5154  1.1  christos   if (htab->plt_type == PLT_NEW
   5155  1.1  christos       && htab->plt != NULL
   5156  1.1  christos       && htab->plt->output_section != NULL)
   5157  1.1  christos     {
   5158  1.1  christos       elf_section_type (htab->plt->output_section) = SHT_PROGBITS;
   5159  1.1  christos       elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE;
   5160  1.1  christos     }
   5161  1.1  christos 
   5162  1.1  christos   return _bfd_elf_tls_setup (obfd, info);
   5163  1.1  christos }
   5164  1.1  christos 
   5165  1.1  christos /* Return TRUE iff REL is a branch reloc with a global symbol matching
   5166  1.1  christos    HASH.  */
   5167  1.1  christos 
   5168  1.1  christos static bfd_boolean
   5169  1.1  christos branch_reloc_hash_match (const bfd *ibfd,
   5170  1.1  christos 			 const Elf_Internal_Rela *rel,
   5171  1.1  christos 			 const struct elf_link_hash_entry *hash)
   5172  1.1  christos {
   5173  1.1  christos   Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5174  1.1  christos   enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
   5175  1.1  christos   unsigned int r_symndx = ELF32_R_SYM (rel->r_info);
   5176  1.1  christos 
   5177  1.1  christos   if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type))
   5178  1.1  christos     {
   5179  1.1  christos       struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
   5180  1.1  christos       struct elf_link_hash_entry *h;
   5181  1.1  christos 
   5182  1.1  christos       h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5183  1.1  christos       while (h->root.type == bfd_link_hash_indirect
   5184  1.1  christos 	     || h->root.type == bfd_link_hash_warning)
   5185  1.1  christos 	h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5186  1.1  christos       if (h == hash)
   5187  1.1  christos 	return TRUE;
   5188  1.1  christos     }
   5189  1.1  christos   return FALSE;
   5190  1.1  christos }
   5191  1.1  christos 
   5192  1.1  christos /* Run through all the TLS relocs looking for optimization
   5193  1.1  christos    opportunities.  */
   5194  1.1  christos 
   5195  1.1  christos bfd_boolean
   5196  1.1  christos ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED,
   5197  1.1  christos 		      struct bfd_link_info *info)
   5198  1.1  christos {
   5199  1.1  christos   bfd *ibfd;
   5200  1.1  christos   asection *sec;
   5201  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5202  1.1  christos   int pass;
   5203  1.1  christos 
   5204  1.1  christos   if (info->relocatable || !info->executable)
   5205  1.1  christos     return TRUE;
   5206  1.1  christos 
   5207  1.1  christos   htab = ppc_elf_hash_table (info);
   5208  1.1  christos   if (htab == NULL)
   5209  1.1  christos     return FALSE;
   5210  1.1  christos 
   5211  1.1  christos   /* Make two passes through the relocs.  First time check that tls
   5212  1.1  christos      relocs involved in setting up a tls_get_addr call are indeed
   5213  1.1  christos      followed by such a call.  If they are not, don't do any tls
   5214  1.1  christos      optimization.  On the second pass twiddle tls_mask flags to
   5215  1.1  christos      notify relocate_section that optimization can be done, and
   5216  1.1  christos      adjust got and plt refcounts.  */
   5217  1.1  christos   for (pass = 0; pass < 2; ++pass)
   5218  1.1  christos     for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
   5219  1.1  christos       {
   5220  1.1  christos 	Elf_Internal_Sym *locsyms = NULL;
   5221  1.1  christos 	Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd);
   5222  1.1  christos 	asection *got2 = bfd_get_section_by_name (ibfd, ".got2");
   5223  1.1  christos 
   5224  1.1  christos 	for (sec = ibfd->sections; sec != NULL; sec = sec->next)
   5225  1.1  christos 	  if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
   5226  1.1  christos 	    {
   5227  1.1  christos 	      Elf_Internal_Rela *relstart, *rel, *relend;
   5228  1.1  christos 	      int expecting_tls_get_addr = 0;
   5229  1.1  christos 
   5230  1.1  christos 	      /* Read the relocations.  */
   5231  1.1  christos 	      relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
   5232  1.1  christos 						    info->keep_memory);
   5233  1.1  christos 	      if (relstart == NULL)
   5234  1.1  christos 		return FALSE;
   5235  1.1  christos 
   5236  1.1  christos 	      relend = relstart + sec->reloc_count;
   5237  1.1  christos 	      for (rel = relstart; rel < relend; rel++)
   5238  1.1  christos 		{
   5239  1.1  christos 		  enum elf_ppc_reloc_type r_type;
   5240  1.1  christos 		  unsigned long r_symndx;
   5241  1.1  christos 		  struct elf_link_hash_entry *h = NULL;
   5242  1.1  christos 		  char *tls_mask;
   5243  1.1  christos 		  char tls_set, tls_clear;
   5244  1.1  christos 		  bfd_boolean is_local;
   5245  1.1  christos 		  bfd_signed_vma *got_count;
   5246  1.1  christos 
   5247  1.1  christos 		  r_symndx = ELF32_R_SYM (rel->r_info);
   5248  1.1  christos 		  if (r_symndx >= symtab_hdr->sh_info)
   5249  1.1  christos 		    {
   5250  1.1  christos 		      struct elf_link_hash_entry **sym_hashes;
   5251  1.1  christos 
   5252  1.1  christos 		      sym_hashes = elf_sym_hashes (ibfd);
   5253  1.1  christos 		      h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   5254  1.1  christos 		      while (h->root.type == bfd_link_hash_indirect
   5255  1.1  christos 			     || h->root.type == bfd_link_hash_warning)
   5256  1.1  christos 			h = (struct elf_link_hash_entry *) h->root.u.i.link;
   5257  1.1  christos 		    }
   5258  1.1  christos 
   5259  1.1  christos 		  is_local = FALSE;
   5260  1.1  christos 		  if (h == NULL
   5261  1.1  christos 		      || !h->def_dynamic)
   5262  1.1  christos 		    is_local = TRUE;
   5263  1.1  christos 
   5264  1.1  christos 		  r_type = ELF32_R_TYPE (rel->r_info);
   5265  1.1  christos 		  /* If this section has old-style __tls_get_addr calls
   5266  1.1  christos 		     without marker relocs, then check that each
   5267  1.1  christos 		     __tls_get_addr call reloc is preceded by a reloc
   5268  1.1  christos 		     that conceivably belongs to the __tls_get_addr arg
   5269  1.1  christos 		     setup insn.  If we don't find matching arg setup
   5270  1.1  christos 		     relocs, don't do any tls optimization.  */
   5271  1.1  christos 		  if (pass == 0
   5272  1.1  christos 		      && sec->has_tls_get_addr_call
   5273  1.1  christos 		      && h != NULL
   5274  1.1  christos 		      && h == htab->tls_get_addr
   5275  1.1  christos 		      && !expecting_tls_get_addr
   5276  1.1  christos 		      && is_branch_reloc (r_type))
   5277  1.1  christos 		    {
   5278  1.1  christos 		      info->callbacks->minfo ("%H __tls_get_addr lost arg, "
   5279  1.1  christos 					      "TLS optimization disabled\n",
   5280  1.1  christos 					      ibfd, sec, rel->r_offset);
   5281  1.1  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5282  1.1  christos 			free (relstart);
   5283  1.1  christos 		      return TRUE;
   5284  1.1  christos 		    }
   5285  1.1  christos 
   5286  1.1  christos 		  expecting_tls_get_addr = 0;
   5287  1.1  christos 		  switch (r_type)
   5288  1.1  christos 		    {
   5289  1.1  christos 		    case R_PPC_GOT_TLSLD16:
   5290  1.1  christos 		    case R_PPC_GOT_TLSLD16_LO:
   5291  1.1  christos 		      expecting_tls_get_addr = 1;
   5292  1.1  christos 		      /* Fall thru */
   5293  1.1  christos 
   5294  1.1  christos 		    case R_PPC_GOT_TLSLD16_HI:
   5295  1.1  christos 		    case R_PPC_GOT_TLSLD16_HA:
   5296  1.1  christos 		      /* These relocs should never be against a symbol
   5297  1.1  christos 			 defined in a shared lib.  Leave them alone if
   5298  1.1  christos 			 that turns out to be the case.  */
   5299  1.1  christos 		      if (!is_local)
   5300  1.1  christos 			continue;
   5301  1.1  christos 
   5302  1.1  christos 		      /* LD -> LE */
   5303  1.1  christos 		      tls_set = 0;
   5304  1.1  christos 		      tls_clear = TLS_LD;
   5305  1.1  christos 		      break;
   5306  1.1  christos 
   5307  1.1  christos 		    case R_PPC_GOT_TLSGD16:
   5308  1.1  christos 		    case R_PPC_GOT_TLSGD16_LO:
   5309  1.1  christos 		      expecting_tls_get_addr = 1;
   5310  1.1  christos 		      /* Fall thru */
   5311  1.1  christos 
   5312  1.1  christos 		    case R_PPC_GOT_TLSGD16_HI:
   5313  1.1  christos 		    case R_PPC_GOT_TLSGD16_HA:
   5314  1.1  christos 		      if (is_local)
   5315  1.1  christos 			/* GD -> LE */
   5316  1.1  christos 			tls_set = 0;
   5317  1.1  christos 		      else
   5318  1.1  christos 			/* GD -> IE */
   5319  1.1  christos 			tls_set = TLS_TLS | TLS_TPRELGD;
   5320  1.1  christos 		      tls_clear = TLS_GD;
   5321  1.1  christos 		      break;
   5322  1.1  christos 
   5323  1.1  christos 		    case R_PPC_GOT_TPREL16:
   5324  1.1  christos 		    case R_PPC_GOT_TPREL16_LO:
   5325  1.1  christos 		    case R_PPC_GOT_TPREL16_HI:
   5326  1.1  christos 		    case R_PPC_GOT_TPREL16_HA:
   5327  1.1  christos 		      if (is_local)
   5328  1.1  christos 			{
   5329  1.1  christos 			  /* IE -> LE */
   5330  1.1  christos 			  tls_set = 0;
   5331  1.1  christos 			  tls_clear = TLS_TPREL;
   5332  1.1  christos 			  break;
   5333  1.1  christos 			}
   5334  1.1  christos 		      else
   5335  1.1  christos 			continue;
   5336  1.1  christos 
   5337  1.1  christos 		    case R_PPC_TLSGD:
   5338  1.1  christos 		    case R_PPC_TLSLD:
   5339  1.1  christos 		      expecting_tls_get_addr = 2;
   5340  1.1  christos 		      tls_set = 0;
   5341  1.1  christos 		      tls_clear = 0;
   5342  1.1  christos 		      break;
   5343  1.1  christos 
   5344  1.1  christos 		    default:
   5345  1.1  christos 		      continue;
   5346  1.1  christos 		    }
   5347  1.1  christos 
   5348  1.1  christos 		  if (pass == 0)
   5349  1.1  christos 		    {
   5350  1.1  christos 		      if (!expecting_tls_get_addr
   5351  1.1  christos 			  || (expecting_tls_get_addr == 1
   5352  1.1  christos 			      && !sec->has_tls_get_addr_call))
   5353  1.1  christos 			continue;
   5354  1.1  christos 
   5355  1.1  christos 		      if (rel + 1 < relend
   5356  1.1  christos 			  && branch_reloc_hash_match (ibfd, rel + 1,
   5357  1.1  christos 						      htab->tls_get_addr))
   5358  1.1  christos 			continue;
   5359  1.1  christos 
   5360  1.1  christos 		      /* Uh oh, we didn't find the expected call.  We
   5361  1.1  christos 			 could just mark this symbol to exclude it
   5362  1.1  christos 			 from tls optimization but it's safer to skip
   5363  1.1  christos 			 the entire optimization.  */
   5364  1.1  christos 		      info->callbacks->minfo (_("%H arg lost __tls_get_addr, "
   5365  1.1  christos 						"TLS optimization disabled\n"),
   5366  1.1  christos 					      ibfd, sec, rel->r_offset);
   5367  1.1  christos 		      if (elf_section_data (sec)->relocs != relstart)
   5368  1.1  christos 			free (relstart);
   5369  1.1  christos 		      return TRUE;
   5370  1.1  christos 		    }
   5371  1.1  christos 
   5372  1.1  christos 		  if (expecting_tls_get_addr)
   5373  1.1  christos 		    {
   5374  1.1  christos 		      struct plt_entry *ent;
   5375  1.1  christos 		      bfd_vma addend = 0;
   5376  1.1  christos 
   5377  1.1  christos 		      if (info->shared
   5378  1.1  christos 			  && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24)
   5379  1.1  christos 			addend = rel[1].r_addend;
   5380  1.1  christos 		      ent = find_plt_ent (&htab->tls_get_addr->plt.plist,
   5381  1.1  christos 					  got2, addend);
   5382  1.1  christos 		      if (ent != NULL && ent->plt.refcount > 0)
   5383  1.1  christos 			ent->plt.refcount -= 1;
   5384  1.1  christos 
   5385  1.1  christos 		      if (expecting_tls_get_addr == 2)
   5386  1.1  christos 			continue;
   5387  1.1  christos 		    }
   5388  1.1  christos 
   5389  1.1  christos 		  if (h != NULL)
   5390  1.1  christos 		    {
   5391  1.1  christos 		      tls_mask = &ppc_elf_hash_entry (h)->tls_mask;
   5392  1.1  christos 		      got_count = &h->got.refcount;
   5393  1.1  christos 		    }
   5394  1.1  christos 		  else
   5395  1.1  christos 		    {
   5396  1.1  christos 		      bfd_signed_vma *lgot_refs;
   5397  1.1  christos 		      struct plt_entry **local_plt;
   5398  1.1  christos 		      char *lgot_masks;
   5399  1.1  christos 
   5400  1.1  christos 		      if (locsyms == NULL)
   5401  1.1  christos 			{
   5402  1.1  christos 			  locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
   5403  1.1  christos 			  if (locsyms == NULL)
   5404  1.1  christos 			    locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
   5405  1.1  christos 							    symtab_hdr->sh_info,
   5406  1.1  christos 							    0, NULL, NULL, NULL);
   5407  1.1  christos 			  if (locsyms == NULL)
   5408  1.1  christos 			    {
   5409  1.1  christos 			      if (elf_section_data (sec)->relocs != relstart)
   5410  1.1  christos 				free (relstart);
   5411  1.1  christos 			      return FALSE;
   5412  1.1  christos 			    }
   5413  1.1  christos 			}
   5414  1.1  christos 		      lgot_refs = elf_local_got_refcounts (ibfd);
   5415  1.1  christos 		      if (lgot_refs == NULL)
   5416  1.1  christos 			abort ();
   5417  1.1  christos 		      local_plt = (struct plt_entry **)
   5418  1.1  christos 			(lgot_refs + symtab_hdr->sh_info);
   5419  1.1  christos 		      lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
   5420  1.1  christos 		      tls_mask = &lgot_masks[r_symndx];
   5421  1.1  christos 		      got_count = &lgot_refs[r_symndx];
   5422  1.1  christos 		    }
   5423  1.1  christos 
   5424  1.1  christos 		  if (tls_set == 0)
   5425  1.1  christos 		    {
   5426  1.1  christos 		      /* We managed to get rid of a got entry.  */
   5427  1.1  christos 		      if (*got_count > 0)
   5428  1.1  christos 			*got_count -= 1;
   5429  1.1  christos 		    }
   5430  1.1  christos 
   5431  1.1  christos 		  *tls_mask |= tls_set;
   5432  1.1  christos 		  *tls_mask &= ~tls_clear;
   5433  1.1  christos 		}
   5434  1.1  christos 
   5435  1.1  christos 	      if (elf_section_data (sec)->relocs != relstart)
   5436  1.1  christos 		free (relstart);
   5437  1.1  christos 	    }
   5438  1.1  christos 
   5439  1.1  christos 	if (locsyms != NULL
   5440  1.1  christos 	    && (symtab_hdr->contents != (unsigned char *) locsyms))
   5441  1.1  christos 	  {
   5442  1.1  christos 	    if (!info->keep_memory)
   5443  1.1  christos 	      free (locsyms);
   5444  1.1  christos 	    else
   5445  1.1  christos 	      symtab_hdr->contents = (unsigned char *) locsyms;
   5446  1.1  christos 	  }
   5447  1.1  christos       }
   5448  1.1  christos   return TRUE;
   5449  1.1  christos }
   5450  1.1  christos 
   5451  1.1  christos /* Return true if we have dynamic relocs that apply to read-only sections.  */
   5453  1.1  christos 
   5454  1.1  christos static bfd_boolean
   5455  1.1  christos readonly_dynrelocs (struct elf_link_hash_entry *h)
   5456  1.1  christos {
   5457  1.1  christos   struct elf_dyn_relocs *p;
   5458  1.1  christos 
   5459  1.1  christos   for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
   5460  1.1  christos     {
   5461  1.1  christos       asection *s = p->sec->output_section;
   5462  1.1  christos 
   5463  1.1  christos       if (s != NULL
   5464  1.1  christos 	  && ((s->flags & (SEC_READONLY | SEC_ALLOC))
   5465  1.1  christos 	      == (SEC_READONLY | SEC_ALLOC)))
   5466  1.1  christos 	return TRUE;
   5467  1.1  christos     }
   5468  1.1  christos   return FALSE;
   5469  1.1  christos }
   5470  1.1  christos 
   5471  1.1  christos /* Adjust a symbol defined by a dynamic object and referenced by a
   5472  1.1  christos    regular object.  The current definition is in some section of the
   5473  1.1  christos    dynamic object, but we're not including those sections.  We have to
   5474  1.1  christos    change the definition to something the rest of the link can
   5475  1.1  christos    understand.  */
   5476  1.1  christos 
   5477  1.1  christos static bfd_boolean
   5478  1.1  christos ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
   5479  1.1  christos 			       struct elf_link_hash_entry *h)
   5480  1.1  christos {
   5481  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5482  1.1  christos   asection *s;
   5483  1.1  christos 
   5484  1.1  christos #ifdef DEBUG
   5485  1.1  christos   fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n",
   5486  1.1  christos 	   h->root.root.string);
   5487  1.1  christos #endif
   5488  1.1  christos 
   5489  1.1  christos   /* Make sure we know what is going on here.  */
   5490  1.1  christos   htab = ppc_elf_hash_table (info);
   5491  1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL
   5492  1.1  christos 	      && (h->needs_plt
   5493  1.1  christos 		  || h->type == STT_GNU_IFUNC
   5494  1.1  christos 		  || h->u.weakdef != NULL
   5495  1.1  christos 		  || (h->def_dynamic
   5496  1.1  christos 		      && h->ref_regular
   5497  1.1  christos 		      && !h->def_regular)));
   5498  1.1  christos 
   5499  1.1  christos   /* Deal with function syms.  */
   5500  1.1  christos   if (h->type == STT_FUNC
   5501  1.1  christos       || h->type == STT_GNU_IFUNC
   5502  1.1  christos       || h->needs_plt)
   5503  1.1  christos     {
   5504  1.1  christos       /* Clear procedure linkage table information for any symbol that
   5505  1.1  christos 	 won't need a .plt entry.  */
   5506  1.1  christos       struct plt_entry *ent;
   5507  1.1  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   5508  1.1  christos 	if (ent->plt.refcount > 0)
   5509  1.1  christos 	  break;
   5510  1.1  christos       if (ent == NULL
   5511  1.1  christos 	  || (h->type != STT_GNU_IFUNC
   5512  1.1  christos 	      && (SYMBOL_CALLS_LOCAL (info, h)
   5513  1.1  christos 		  || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
   5514  1.1  christos 		      && h->root.type == bfd_link_hash_undefweak))))
   5515  1.1  christos 	{
   5516  1.1  christos 	  /* A PLT entry is not required/allowed when:
   5517  1.1  christos 
   5518  1.1  christos 	     1. We are not using ld.so; because then the PLT entry
   5519  1.1  christos 	     can't be set up, so we can't use one.  In this case,
   5520  1.1  christos 	     ppc_elf_adjust_dynamic_symbol won't even be called.
   5521  1.1  christos 
   5522  1.1  christos 	     2. GC has rendered the entry unused.
   5523  1.1  christos 
   5524  1.1  christos 	     3. We know for certain that a call to this symbol
   5525  1.1  christos 	     will go to this object, or will remain undefined.  */
   5526  1.1  christos 	  h->plt.plist = NULL;
   5527  1.1  christos 	  h->needs_plt = 0;
   5528  1.1  christos 	}
   5529  1.1  christos       else
   5530  1.1  christos 	{
   5531  1.1  christos 	  /* After adjust_dynamic_symbol, non_got_ref set in the
   5532  1.1  christos 	     non-shared case means that we have allocated space in
   5533  1.1  christos 	     .dynbss for the symbol and thus dyn_relocs for this
   5534  1.1  christos 	     symbol should be discarded.
   5535  1.1  christos 	     If we get here we know we are making a PLT entry for this
   5536  1.1  christos 	     symbol, and in an executable we'd normally resolve
   5537  1.1  christos 	     relocations against this symbol to the PLT entry.  Allow
   5538  1.1  christos 	     dynamic relocs if the reference is weak, and the dynamic
   5539  1.1  christos 	     relocs will not cause text relocation.  */
   5540  1.1  christos 	  if (!h->ref_regular_nonweak
   5541  1.1  christos 	      && h->non_got_ref
   5542  1.1  christos 	      && h->type != STT_GNU_IFUNC
   5543  1.1  christos 	      && !htab->is_vxworks
   5544  1.1  christos 	      && !ppc_elf_hash_entry (h)->has_sda_refs
   5545  1.1  christos 	      && !readonly_dynrelocs (h))
   5546  1.1  christos 	    h->non_got_ref = 0;
   5547  1.1  christos 	}
   5548  1.1  christos       return TRUE;
   5549  1.1  christos     }
   5550  1.1  christos   else
   5551  1.1  christos     h->plt.plist = NULL;
   5552  1.1  christos 
   5553  1.1  christos   /* If this is a weak symbol, and there is a real definition, the
   5554  1.1  christos      processor independent code will have arranged for us to see the
   5555  1.1  christos      real definition first, and we can just use the same value.  */
   5556  1.1  christos   if (h->u.weakdef != NULL)
   5557  1.1  christos     {
   5558  1.1  christos       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
   5559  1.1  christos 		  || h->u.weakdef->root.type == bfd_link_hash_defweak);
   5560  1.1  christos       h->root.u.def.section = h->u.weakdef->root.u.def.section;
   5561  1.1  christos       h->root.u.def.value = h->u.weakdef->root.u.def.value;
   5562  1.1  christos       if (ELIMINATE_COPY_RELOCS)
   5563  1.1  christos 	h->non_got_ref = h->u.weakdef->non_got_ref;
   5564  1.1  christos       return TRUE;
   5565  1.1  christos     }
   5566  1.1  christos 
   5567  1.1  christos   /* This is a reference to a symbol defined by a dynamic object which
   5568  1.1  christos      is not a function.  */
   5569  1.1  christos 
   5570  1.1  christos   /* If we are creating a shared library, we must presume that the
   5571  1.1  christos      only references to the symbol are via the global offset table.
   5572  1.1  christos      For such cases we need not do anything here; the relocations will
   5573  1.1  christos      be handled correctly by relocate_section.  */
   5574  1.1  christos   if (info->shared)
   5575  1.1  christos     return TRUE;
   5576  1.1  christos 
   5577  1.1  christos   /* If there are no references to this symbol that do not use the
   5578  1.1  christos      GOT, we don't need to generate a copy reloc.  */
   5579  1.1  christos   if (!h->non_got_ref)
   5580  1.1  christos     return TRUE;
   5581  1.1  christos 
   5582  1.1  christos    /* If we didn't find any dynamic relocs in read-only sections, then
   5583  1.1  christos       we'll be keeping the dynamic relocs and avoiding the copy reloc.
   5584  1.1  christos       We can't do this if there are any small data relocations.  This
   5585  1.1  christos       doesn't work on VxWorks, where we can not have dynamic
   5586  1.1  christos       relocations (other than copy and jump slot relocations) in an
   5587  1.1  christos       executable.  */
   5588  1.1  christos   if (ELIMINATE_COPY_RELOCS
   5589  1.1  christos       && !ppc_elf_hash_entry (h)->has_sda_refs
   5590  1.1  christos       && !htab->is_vxworks
   5591  1.1  christos       && !h->def_regular
   5592  1.1  christos       && !readonly_dynrelocs (h))
   5593  1.1  christos     {
   5594  1.1  christos       h->non_got_ref = 0;
   5595  1.1  christos       return TRUE;
   5596  1.1  christos     }
   5597  1.1  christos 
   5598  1.1  christos   /* We must allocate the symbol in our .dynbss section, which will
   5599  1.1  christos      become part of the .bss section of the executable.  There will be
   5600  1.1  christos      an entry for this symbol in the .dynsym section.  The dynamic
   5601  1.1  christos      object will contain position independent code, so all references
   5602  1.1  christos      from the dynamic object to this symbol will go through the global
   5603  1.1  christos      offset table.  The dynamic linker will use the .dynsym entry to
   5604  1.1  christos      determine the address it must put in the global offset table, so
   5605  1.1  christos      both the dynamic object and the regular object will refer to the
   5606  1.1  christos      same memory location for the variable.
   5607  1.1  christos 
   5608  1.1  christos      Of course, if the symbol is referenced using SDAREL relocs, we
   5609  1.1  christos      must instead allocate it in .sbss.  */
   5610  1.1  christos 
   5611  1.1  christos   if (ppc_elf_hash_entry (h)->has_sda_refs)
   5612  1.1  christos     s = htab->dynsbss;
   5613  1.1  christos   else
   5614  1.1  christos     s = htab->dynbss;
   5615  1.1  christos   BFD_ASSERT (s != NULL);
   5616  1.1  christos 
   5617  1.1  christos   /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to
   5618  1.1  christos      copy the initial value out of the dynamic object and into the
   5619  1.1  christos      runtime process image.  We need to remember the offset into the
   5620  1.1  christos      .rela.bss section we are going to use.  */
   5621  1.1  christos   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
   5622  1.1  christos     {
   5623  1.1  christos       asection *srel;
   5624  1.1  christos 
   5625  1.1  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   5626  1.1  christos 	srel = htab->relsbss;
   5627  1.1  christos       else
   5628  1.1  christos 	srel = htab->relbss;
   5629  1.1  christos       BFD_ASSERT (srel != NULL);
   5630  1.1  christos       srel->size += sizeof (Elf32_External_Rela);
   5631  1.1  christos       h->needs_copy = 1;
   5632  1.1  christos     }
   5633  1.1  christos 
   5634  1.1  christos   return _bfd_elf_adjust_dynamic_copy (h, s);
   5635  1.1  christos }
   5636  1.1  christos 
   5637  1.1  christos /* Generate a symbol to mark plt call stubs.  For non-PIC code the sym is
   5639  1.1  christos    xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0,
   5640  1.1  christos    specifying the addend on the plt relocation.  For -fpic code, the sym
   5641  1.1  christos    is xxxxxxxx.plt_pic32.<callee>, and for -fPIC
   5642  1.1  christos    xxxxxxxx.got2.plt_pic32.<callee>.  */
   5643  1.1  christos 
   5644  1.1  christos static bfd_boolean
   5645  1.1  christos add_stub_sym (struct plt_entry *ent,
   5646  1.1  christos 	      struct elf_link_hash_entry *h,
   5647  1.1  christos 	      struct bfd_link_info *info)
   5648  1.1  christos {
   5649  1.1  christos   struct elf_link_hash_entry *sh;
   5650  1.1  christos   size_t len1, len2, len3;
   5651  1.1  christos   char *name;
   5652  1.1  christos   const char *stub;
   5653  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   5654  1.1  christos 
   5655  1.1  christos   if (info->shared)
   5656  1.1  christos     stub = ".plt_pic32.";
   5657  1.1  christos   else
   5658  1.1  christos     stub = ".plt_call32.";
   5659  1.1  christos 
   5660  1.1  christos   len1 = strlen (h->root.root.string);
   5661  1.1  christos   len2 = strlen (stub);
   5662  1.1  christos   len3 = 0;
   5663  1.1  christos   if (ent->sec)
   5664  1.1  christos     len3 = strlen (ent->sec->name);
   5665  1.1  christos   name = bfd_malloc (len1 + len2 + len3 + 9);
   5666  1.1  christos   if (name == NULL)
   5667  1.1  christos     return FALSE;
   5668  1.1  christos   sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff);
   5669  1.1  christos   if (ent->sec)
   5670  1.1  christos     memcpy (name + 8, ent->sec->name, len3);
   5671  1.1  christos   memcpy (name + 8 + len3, stub, len2);
   5672  1.1  christos   memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1);
   5673  1.1  christos   sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE);
   5674  1.1  christos   if (sh == NULL)
   5675  1.1  christos     return FALSE;
   5676  1.1  christos   if (sh->root.type == bfd_link_hash_new)
   5677  1.1  christos     {
   5678  1.1  christos       sh->root.type = bfd_link_hash_defined;
   5679  1.1  christos       sh->root.u.def.section = htab->glink;
   5680  1.1  christos       sh->root.u.def.value = ent->glink_offset;
   5681  1.1  christos       sh->ref_regular = 1;
   5682  1.1  christos       sh->def_regular = 1;
   5683  1.1  christos       sh->ref_regular_nonweak = 1;
   5684  1.1  christos       sh->forced_local = 1;
   5685  1.1  christos       sh->non_elf = 0;
   5686  1.1  christos     }
   5687  1.1  christos   return TRUE;
   5688  1.1  christos }
   5689  1.1  christos 
   5690  1.1  christos /* Allocate NEED contiguous space in .got, and return the offset.
   5691  1.1  christos    Handles allocation of the got header when crossing 32k.  */
   5692  1.1  christos 
   5693  1.1  christos static bfd_vma
   5694  1.1  christos allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need)
   5695  1.1  christos {
   5696  1.1  christos   bfd_vma where;
   5697  1.1  christos   unsigned int max_before_header;
   5698  1.1  christos 
   5699  1.1  christos   if (htab->plt_type == PLT_VXWORKS)
   5700  1.1  christos     {
   5701  1.1  christos       where = htab->got->size;
   5702  1.1  christos       htab->got->size += need;
   5703  1.1  christos     }
   5704  1.1  christos   else
   5705  1.1  christos     {
   5706  1.1  christos       max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764;
   5707  1.1  christos       if (need <= htab->got_gap)
   5708  1.1  christos 	{
   5709  1.1  christos 	  where = max_before_header - htab->got_gap;
   5710  1.1  christos 	  htab->got_gap -= need;
   5711  1.1  christos 	}
   5712  1.1  christos       else
   5713  1.1  christos 	{
   5714  1.1  christos 	  if (htab->got->size + need > max_before_header
   5715  1.1  christos 	      && htab->got->size <= max_before_header)
   5716  1.1  christos 	    {
   5717  1.1  christos 	      htab->got_gap = max_before_header - htab->got->size;
   5718  1.1  christos 	      htab->got->size = max_before_header + htab->got_header_size;
   5719  1.1  christos 	    }
   5720  1.1  christos 	  where = htab->got->size;
   5721  1.1  christos 	  htab->got->size += need;
   5722  1.1  christos 	}
   5723  1.1  christos     }
   5724  1.1  christos   return where;
   5725  1.1  christos }
   5726  1.1  christos 
   5727  1.1  christos /* Allocate space in associated reloc sections for dynamic relocs.  */
   5728  1.1  christos 
   5729  1.1  christos static bfd_boolean
   5730  1.1  christos allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
   5731  1.1  christos {
   5732  1.1  christos   struct bfd_link_info *info = inf;
   5733  1.1  christos   struct ppc_elf_link_hash_entry *eh;
   5734  1.1  christos   struct ppc_elf_link_hash_table *htab;
   5735  1.1  christos   struct elf_dyn_relocs *p;
   5736  1.1  christos 
   5737  1.1  christos   if (h->root.type == bfd_link_hash_indirect)
   5738  1.1  christos     return TRUE;
   5739  1.1  christos 
   5740  1.1  christos   htab = ppc_elf_hash_table (info);
   5741  1.1  christos   if (htab->elf.dynamic_sections_created
   5742  1.1  christos       || h->type == STT_GNU_IFUNC)
   5743  1.1  christos     {
   5744  1.1  christos       struct plt_entry *ent;
   5745  1.1  christos       bfd_boolean doneone = FALSE;
   5746  1.1  christos       bfd_vma plt_offset = 0, glink_offset = 0;
   5747  1.1  christos       bfd_boolean dyn;
   5748  1.1  christos 
   5749  1.1  christos       for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   5750  1.1  christos 	if (ent->plt.refcount > 0)
   5751  1.1  christos 	  {
   5752  1.1  christos 	    /* Make sure this symbol is output as a dynamic symbol.  */
   5753  1.1  christos 	    if (h->dynindx == -1
   5754  1.1  christos 		&& !h->forced_local
   5755  1.1  christos 		&& !h->def_regular
   5756  1.1  christos 		&& htab->elf.dynamic_sections_created)
   5757  1.1  christos 	      {
   5758  1.1  christos 		if (! bfd_elf_link_record_dynamic_symbol (info, h))
   5759  1.1  christos 		  return FALSE;
   5760  1.1  christos 	      }
   5761  1.1  christos 
   5762  1.1  christos 	    dyn = htab->elf.dynamic_sections_created;
   5763  1.1  christos 	    if (info->shared
   5764  1.1  christos 		|| h->type == STT_GNU_IFUNC
   5765  1.1  christos 		|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
   5766  1.1  christos 	      {
   5767  1.1  christos 		asection *s = htab->plt;
   5768  1.1  christos 		if (!dyn || h->dynindx == -1)
   5769  1.1  christos 		  s = htab->iplt;
   5770  1.1  christos 
   5771  1.1  christos 		if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1)
   5772  1.1  christos 		  {
   5773  1.1  christos 		    if (!doneone)
   5774  1.1  christos 		      {
   5775  1.1  christos 			plt_offset = s->size;
   5776  1.1  christos 			s->size += 4;
   5777  1.1  christos 		      }
   5778  1.1  christos 		    ent->plt.offset = plt_offset;
   5779  1.1  christos 
   5780  1.1  christos 		    s = htab->glink;
   5781  1.1  christos 		    if (!doneone || info->shared)
   5782  1.1  christos 		      {
   5783  1.1  christos 			glink_offset = s->size;
   5784  1.1  christos 			s->size += GLINK_ENTRY_SIZE;
   5785  1.1  christos 			if (h == htab->tls_get_addr
   5786  1.1  christos 			    && !htab->no_tls_get_addr_opt)
   5787  1.1  christos 			  s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE;
   5788  1.1  christos 		      }
   5789  1.1  christos 		    if (!doneone
   5790  1.1  christos 			&& !info->shared
   5791  1.1  christos 			&& h->def_dynamic
   5792  1.1  christos 			&& !h->def_regular)
   5793  1.1  christos 		      {
   5794  1.1  christos 			h->root.u.def.section = s;
   5795  1.1  christos 			h->root.u.def.value = glink_offset;
   5796  1.1  christos 		      }
   5797  1.1  christos 		    ent->glink_offset = glink_offset;
   5798  1.1  christos 
   5799  1.1  christos 		    if (htab->emit_stub_syms
   5800  1.1  christos 			&& !add_stub_sym (ent, h, info))
   5801  1.1  christos 		      return FALSE;
   5802  1.1  christos 		  }
   5803  1.1  christos 		else
   5804  1.1  christos 		  {
   5805  1.1  christos 		    if (!doneone)
   5806  1.1  christos 		      {
   5807  1.1  christos 			/* If this is the first .plt entry, make room
   5808  1.1  christos 			   for the special first entry.  */
   5809  1.1  christos 			if (s->size == 0)
   5810  1.1  christos 			  s->size += htab->plt_initial_entry_size;
   5811  1.1  christos 
   5812  1.1  christos 			/* The PowerPC PLT is actually composed of two
   5813  1.1  christos 			   parts, the first part is 2 words (for a load
   5814  1.1  christos 			   and a jump), and then there is a remaining
   5815  1.1  christos 			   word available at the end.  */
   5816  1.1  christos 			plt_offset = (htab->plt_initial_entry_size
   5817  1.1  christos 				      + (htab->plt_slot_size
   5818  1.1  christos 					 * ((s->size
   5819  1.1  christos 					     - htab->plt_initial_entry_size)
   5820  1.1  christos 					    / htab->plt_entry_size)));
   5821  1.1  christos 
   5822  1.1  christos 			/* If this symbol is not defined in a regular
   5823  1.1  christos 			   file, and we are not generating a shared
   5824  1.1  christos 			   library, then set the symbol to this location
   5825  1.1  christos 			   in the .plt.  This is to avoid text
   5826  1.1  christos 			   relocations, and is required to make
   5827  1.1  christos 			   function pointers compare as equal between
   5828  1.1  christos 			   the normal executable and the shared library.  */
   5829  1.1  christos 			if (! info->shared
   5830  1.1  christos 			    && h->def_dynamic
   5831  1.1  christos 			    && !h->def_regular)
   5832  1.1  christos 			  {
   5833  1.1  christos 			    h->root.u.def.section = s;
   5834  1.1  christos 			    h->root.u.def.value = plt_offset;
   5835  1.1  christos 			  }
   5836  1.1  christos 
   5837  1.1  christos 			/* Make room for this entry.  */
   5838  1.1  christos 			s->size += htab->plt_entry_size;
   5839  1.1  christos 			/* After the 8192nd entry, room for two entries
   5840  1.1  christos 			   is allocated.  */
   5841  1.1  christos 			if (htab->plt_type == PLT_OLD
   5842  1.1  christos 			    && (s->size - htab->plt_initial_entry_size)
   5843  1.1  christos 				/ htab->plt_entry_size
   5844  1.1  christos 			       > PLT_NUM_SINGLE_ENTRIES)
   5845  1.1  christos 			  s->size += htab->plt_entry_size;
   5846  1.1  christos 		      }
   5847  1.1  christos 		    ent->plt.offset = plt_offset;
   5848  1.1  christos 		  }
   5849  1.1  christos 
   5850  1.1  christos 		/* We also need to make an entry in the .rela.plt section.  */
   5851  1.1  christos 		if (!doneone)
   5852  1.1  christos 		  {
   5853  1.1  christos 		    if (!htab->elf.dynamic_sections_created
   5854  1.1  christos 			|| h->dynindx == -1)
   5855  1.1  christos 		      htab->reliplt->size += sizeof (Elf32_External_Rela);
   5856  1.1  christos 		    else
   5857  1.1  christos 		      {
   5858  1.1  christos 			htab->relplt->size += sizeof (Elf32_External_Rela);
   5859  1.1  christos 
   5860  1.1  christos 			if (htab->plt_type == PLT_VXWORKS)
   5861  1.1  christos 			  {
   5862  1.1  christos 			    /* Allocate space for the unloaded relocations.  */
   5863  1.1  christos 			    if (!info->shared
   5864  1.1  christos 				&& htab->elf.dynamic_sections_created)
   5865  1.1  christos 			      {
   5866  1.1  christos 				if (ent->plt.offset
   5867  1.1  christos 				    == (bfd_vma) htab->plt_initial_entry_size)
   5868  1.1  christos 				  {
   5869  1.1  christos 				    htab->srelplt2->size
   5870  1.1  christos 				      += (sizeof (Elf32_External_Rela)
   5871  1.1  christos 					  * VXWORKS_PLTRESOLVE_RELOCS);
   5872  1.1  christos 				  }
   5873  1.1  christos 
   5874  1.1  christos 				htab->srelplt2->size
   5875  1.1  christos 				  += (sizeof (Elf32_External_Rela)
   5876  1.1  christos 				      * VXWORKS_PLT_NON_JMP_SLOT_RELOCS);
   5877  1.1  christos 			      }
   5878  1.1  christos 
   5879  1.1  christos 			    /* Every PLT entry has an associated GOT entry in
   5880  1.1  christos 			       .got.plt.  */
   5881  1.1  christos 			    htab->sgotplt->size += 4;
   5882  1.1  christos 			  }
   5883  1.1  christos 		      }
   5884  1.1  christos 		    doneone = TRUE;
   5885  1.1  christos 		  }
   5886  1.1  christos 	      }
   5887  1.1  christos 	    else
   5888  1.1  christos 	      ent->plt.offset = (bfd_vma) -1;
   5889  1.1  christos 	  }
   5890  1.1  christos 	else
   5891  1.1  christos 	  ent->plt.offset = (bfd_vma) -1;
   5892  1.1  christos 
   5893  1.1  christos       if (!doneone)
   5894  1.1  christos 	{
   5895  1.1  christos 	  h->plt.plist = NULL;
   5896  1.1  christos 	  h->needs_plt = 0;
   5897  1.1  christos 	}
   5898  1.1  christos     }
   5899  1.1  christos   else
   5900  1.1  christos     {
   5901  1.1  christos       h->plt.plist = NULL;
   5902  1.1  christos       h->needs_plt = 0;
   5903  1.1  christos     }
   5904  1.1  christos 
   5905  1.1  christos   eh = (struct ppc_elf_link_hash_entry *) h;
   5906  1.1  christos   if (eh->elf.got.refcount > 0)
   5907  1.1  christos     {
   5908  1.1  christos       bfd_boolean dyn;
   5909  1.1  christos       unsigned int need;
   5910  1.1  christos 
   5911  1.1  christos       /* Make sure this symbol is output as a dynamic symbol.  */
   5912  1.1  christos       if (eh->elf.dynindx == -1
   5913  1.1  christos 	  && !eh->elf.forced_local
   5914  1.1  christos 	  && eh->elf.type != STT_GNU_IFUNC
   5915  1.1  christos 	  && htab->elf.dynamic_sections_created)
   5916  1.1  christos 	{
   5917  1.1  christos 	  if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf))
   5918  1.1  christos 	    return FALSE;
   5919  1.1  christos 	}
   5920  1.1  christos 
   5921  1.1  christos       need = 0;
   5922  1.1  christos       if ((eh->tls_mask & TLS_TLS) != 0)
   5923  1.1  christos 	{
   5924  1.1  christos 	  if ((eh->tls_mask & TLS_LD) != 0)
   5925  1.1  christos 	    {
   5926  1.1  christos 	      if (!eh->elf.def_dynamic)
   5927  1.1  christos 		/* We'll just use htab->tlsld_got.offset.  This should
   5928  1.1  christos 		   always be the case.  It's a little odd if we have
   5929  1.1  christos 		   a local dynamic reloc against a non-local symbol.  */
   5930  1.1  christos 		htab->tlsld_got.refcount += 1;
   5931  1.1  christos 	      else
   5932  1.1  christos 		need += 8;
   5933  1.1  christos 	    }
   5934  1.1  christos 	  if ((eh->tls_mask & TLS_GD) != 0)
   5935  1.1  christos 	    need += 8;
   5936  1.1  christos 	  if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0)
   5937  1.1  christos 	    need += 4;
   5938  1.1  christos 	  if ((eh->tls_mask & TLS_DTPREL) != 0)
   5939  1.1  christos 	    need += 4;
   5940  1.1  christos 	}
   5941  1.1  christos       else
   5942  1.1  christos 	need += 4;
   5943  1.1  christos       if (need == 0)
   5944  1.1  christos 	eh->elf.got.offset = (bfd_vma) -1;
   5945  1.1  christos       else
   5946  1.1  christos 	{
   5947  1.1  christos 	  eh->elf.got.offset = allocate_got (htab, need);
   5948  1.1  christos 	  dyn = htab->elf.dynamic_sections_created;
   5949  1.1  christos 	  if ((info->shared
   5950  1.1  christos 	       || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf))
   5951  1.1  christos 	      && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT
   5952  1.1  christos 		  || eh->elf.root.type != bfd_link_hash_undefweak))
   5953  1.1  christos 	    {
   5954  1.1  christos 	      asection *rsec = htab->relgot;
   5955  1.1  christos 
   5956  1.1  christos 	      if (eh->elf.type == STT_GNU_IFUNC)
   5957  1.1  christos 		rsec = htab->reliplt;
   5958  1.1  christos 	      /* All the entries we allocated need relocs.
   5959  1.1  christos 		 Except LD only needs one.  */
   5960  1.1  christos 	      if ((eh->tls_mask & TLS_LD) != 0
   5961  1.1  christos 		  && eh->elf.def_dynamic)
   5962  1.1  christos 		need -= 4;
   5963  1.1  christos 	      rsec->size += need * (sizeof (Elf32_External_Rela) / 4);
   5964  1.1  christos 	    }
   5965  1.1  christos 	}
   5966  1.1  christos     }
   5967  1.1  christos   else
   5968  1.1  christos     eh->elf.got.offset = (bfd_vma) -1;
   5969  1.1  christos 
   5970  1.1  christos   if (eh->dyn_relocs == NULL
   5971  1.1  christos       || !htab->elf.dynamic_sections_created)
   5972  1.1  christos     return TRUE;
   5973  1.1  christos 
   5974  1.1  christos   /* In the shared -Bsymbolic case, discard space allocated for
   5975  1.1  christos      dynamic pc-relative relocs against symbols which turn out to be
   5976  1.1  christos      defined in regular objects.  For the normal shared case, discard
   5977  1.1  christos      space for relocs that have become local due to symbol visibility
   5978  1.1  christos      changes.  */
   5979  1.1  christos 
   5980  1.1  christos   if (info->shared)
   5981  1.1  christos     {
   5982  1.1  christos       /* Relocs that use pc_count are those that appear on a call insn,
   5983  1.1  christos 	 or certain REL relocs (see must_be_dyn_reloc) that can be
   5984  1.1  christos 	 generated via assembly.  We want calls to protected symbols to
   5985  1.1  christos 	 resolve directly to the function rather than going via the plt.
   5986  1.1  christos 	 If people want function pointer comparisons to work as expected
   5987  1.1  christos 	 then they should avoid writing weird assembly.  */
   5988  1.1  christos       if (SYMBOL_CALLS_LOCAL (info, h))
   5989  1.1  christos 	{
   5990  1.1  christos 	  struct elf_dyn_relocs **pp;
   5991  1.1  christos 
   5992  1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   5993  1.1  christos 	    {
   5994  1.1  christos 	      p->count -= p->pc_count;
   5995  1.1  christos 	      p->pc_count = 0;
   5996  1.1  christos 	      if (p->count == 0)
   5997  1.1  christos 		*pp = p->next;
   5998  1.1  christos 	      else
   5999  1.1  christos 		pp = &p->next;
   6000  1.1  christos 	    }
   6001  1.1  christos 	}
   6002  1.1  christos 
   6003  1.1  christos       if (htab->is_vxworks)
   6004  1.1  christos 	{
   6005  1.1  christos 	  struct elf_dyn_relocs **pp;
   6006  1.1  christos 
   6007  1.1  christos 	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
   6008  1.1  christos 	    {
   6009  1.1  christos 	      if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
   6010  1.1  christos 		*pp = p->next;
   6011  1.1  christos 	      else
   6012  1.1  christos 		pp = &p->next;
   6013  1.1  christos 	    }
   6014  1.1  christos 	}
   6015  1.1  christos 
   6016  1.1  christos       /* Discard relocs on undefined symbols that must be local.  */
   6017  1.1  christos       if (eh->dyn_relocs != NULL
   6018  1.1  christos 	  && h->root.type == bfd_link_hash_undefined
   6019  1.1  christos 	  && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
   6020  1.1  christos 	      || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
   6021  1.1  christos 	eh->dyn_relocs = NULL;
   6022  1.1  christos 
   6023  1.1  christos       /* Also discard relocs on undefined weak syms with non-default
   6024  1.1  christos 	 visibility.  */
   6025  1.1  christos       if (eh->dyn_relocs != NULL
   6026  1.1  christos 	  && h->root.type == bfd_link_hash_undefweak)
   6027  1.1  christos 	{
   6028  1.1  christos 	  if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
   6029  1.1  christos 	    eh->dyn_relocs = NULL;
   6030  1.1  christos 
   6031  1.1  christos 	  /* Make sure undefined weak symbols are output as a dynamic
   6032  1.1  christos 	     symbol in PIEs.  */
   6033  1.1  christos 	  else if (h->dynindx == -1
   6034  1.1  christos 		   && !h->forced_local
   6035  1.1  christos 		   && !h->def_regular)
   6036  1.1  christos 	    {
   6037  1.1  christos 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
   6038  1.1  christos 		return FALSE;
   6039  1.1  christos 	    }
   6040  1.1  christos 	}
   6041  1.1  christos     }
   6042  1.1  christos   else if (ELIMINATE_COPY_RELOCS)
   6043  1.1  christos     {
   6044  1.1  christos       /* For the non-shared case, discard space for relocs against
   6045  1.1  christos 	 symbols which turn out to need copy relocs or are not
   6046  1.1  christos 	 dynamic.  */
   6047  1.1  christos 
   6048  1.1  christos       if (!h->non_got_ref
   6049  1.1  christos 	  && !h->def_regular)
   6050  1.1  christos 	{
   6051  1.1  christos 	  /* Make sure this symbol is output as a dynamic symbol.
   6052  1.1  christos 	     Undefined weak syms won't yet be marked as dynamic.  */
   6053  1.1  christos 	  if (h->dynindx == -1
   6054  1.1  christos 	      && !h->forced_local)
   6055  1.1  christos 	    {
   6056  1.1  christos 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
   6057  1.1  christos 		return FALSE;
   6058  1.1  christos 	    }
   6059  1.1  christos 
   6060  1.1  christos 	  /* If that succeeded, we know we'll be keeping all the
   6061  1.1  christos 	     relocs.  */
   6062  1.1  christos 	  if (h->dynindx != -1)
   6063  1.1  christos 	    goto keep;
   6064  1.1  christos 	}
   6065  1.1  christos 
   6066  1.1  christos       eh->dyn_relocs = NULL;
   6067  1.1  christos 
   6068  1.1  christos     keep: ;
   6069  1.1  christos     }
   6070  1.1  christos 
   6071  1.1  christos   /* Finally, allocate space.  */
   6072  1.1  christos   for (p = eh->dyn_relocs; p != NULL; p = p->next)
   6073  1.1  christos     {
   6074  1.1  christos       asection *sreloc = elf_section_data (p->sec)->sreloc;
   6075  1.1  christos       if (eh->elf.type == STT_GNU_IFUNC)
   6076  1.1  christos 	sreloc = htab->reliplt;
   6077  1.1  christos       sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6078  1.1  christos     }
   6079  1.1  christos 
   6080  1.1  christos   return TRUE;
   6081  1.1  christos }
   6082  1.1  christos 
   6083  1.1  christos /* Set DF_TEXTREL if we find any dynamic relocs that apply to
   6084  1.1  christos    read-only sections.  */
   6085  1.1  christos 
   6086  1.1  christos static bfd_boolean
   6087  1.1  christos maybe_set_textrel (struct elf_link_hash_entry *h, void *info)
   6088  1.1  christos {
   6089  1.1  christos   if (h->root.type == bfd_link_hash_indirect)
   6090  1.1  christos     return TRUE;
   6091  1.1  christos 
   6092  1.1  christos   if (readonly_dynrelocs (h))
   6093  1.1  christos     {
   6094  1.1  christos       ((struct bfd_link_info *) info)->flags |= DF_TEXTREL;
   6095  1.1  christos 
   6096  1.1  christos       /* Not an error, just cut short the traversal.  */
   6097  1.1  christos       return FALSE;
   6098  1.1  christos     }
   6099  1.1  christos   return TRUE;
   6100  1.1  christos }
   6101  1.1  christos 
   6102  1.1  christos static const unsigned char glink_eh_frame_cie[] =
   6103  1.1  christos {
   6104  1.1  christos   0, 0, 0, 16,				/* length.  */
   6105  1.1  christos   0, 0, 0, 0,				/* id.  */
   6106  1.1  christos   1,					/* CIE version.  */
   6107  1.1  christos   'z', 'R', 0,				/* Augmentation string.  */
   6108  1.1  christos   4,					/* Code alignment.  */
   6109  1.1  christos   0x7c,					/* Data alignment.  */
   6110  1.1  christos   65,					/* RA reg.  */
   6111  1.1  christos   1,					/* Augmentation size.  */
   6112  1.1  christos   DW_EH_PE_pcrel | DW_EH_PE_sdata4,	/* FDE encoding.  */
   6113  1.1  christos   DW_CFA_def_cfa, 1, 0			/* def_cfa: r1 offset 0.  */
   6114  1.1  christos };
   6115  1.1  christos 
   6116  1.1  christos /* Set the sizes of the dynamic sections.  */
   6117  1.1  christos 
   6118  1.1  christos static bfd_boolean
   6119  1.1  christos ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
   6120  1.1  christos 			       struct bfd_link_info *info)
   6121  1.1  christos {
   6122  1.1  christos   struct ppc_elf_link_hash_table *htab;
   6123  1.1  christos   asection *s;
   6124  1.1  christos   bfd_boolean relocs;
   6125  1.1  christos   bfd *ibfd;
   6126  1.1  christos 
   6127  1.1  christos #ifdef DEBUG
   6128  1.1  christos   fprintf (stderr, "ppc_elf_size_dynamic_sections called\n");
   6129  1.1  christos #endif
   6130  1.1  christos 
   6131  1.1  christos   htab = ppc_elf_hash_table (info);
   6132  1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL);
   6133  1.1  christos 
   6134  1.1  christos   if (elf_hash_table (info)->dynamic_sections_created)
   6135  1.1  christos     {
   6136  1.1  christos       /* Set the contents of the .interp section to the interpreter.  */
   6137  1.1  christos       if (info->executable)
   6138  1.1  christos 	{
   6139  1.1  christos 	  s = bfd_get_linker_section (htab->elf.dynobj, ".interp");
   6140  1.1  christos 	  BFD_ASSERT (s != NULL);
   6141  1.1  christos 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
   6142  1.1  christos 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
   6143  1.1  christos 	}
   6144  1.1  christos     }
   6145  1.1  christos 
   6146  1.1  christos   if (htab->plt_type == PLT_OLD)
   6147  1.1  christos     htab->got_header_size = 16;
   6148  1.1  christos   else if (htab->plt_type == PLT_NEW)
   6149  1.1  christos     htab->got_header_size = 12;
   6150  1.1  christos 
   6151  1.1  christos   /* Set up .got offsets for local syms, and space for local dynamic
   6152  1.1  christos      relocs.  */
   6153  1.1  christos   for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
   6154  1.1  christos     {
   6155  1.1  christos       bfd_signed_vma *local_got;
   6156  1.1  christos       bfd_signed_vma *end_local_got;
   6157  1.1  christos       struct plt_entry **local_plt;
   6158  1.1  christos       struct plt_entry **end_local_plt;
   6159  1.1  christos       char *lgot_masks;
   6160  1.1  christos       bfd_size_type locsymcount;
   6161  1.1  christos       Elf_Internal_Shdr *symtab_hdr;
   6162  1.1  christos 
   6163  1.1  christos       if (!is_ppc_elf (ibfd))
   6164  1.1  christos 	continue;
   6165  1.1  christos 
   6166  1.1  christos       for (s = ibfd->sections; s != NULL; s = s->next)
   6167  1.1  christos 	{
   6168  1.1  christos 	  struct ppc_dyn_relocs *p;
   6169  1.1  christos 
   6170  1.1  christos 	  for (p = ((struct ppc_dyn_relocs *)
   6171  1.1  christos 		    elf_section_data (s)->local_dynrel);
   6172  1.1  christos 	       p != NULL;
   6173  1.1  christos 	       p = p->next)
   6174  1.1  christos 	    {
   6175  1.1  christos 	      if (!bfd_is_abs_section (p->sec)
   6176  1.1  christos 		  && bfd_is_abs_section (p->sec->output_section))
   6177  1.1  christos 		{
   6178  1.1  christos 		  /* Input section has been discarded, either because
   6179  1.1  christos 		     it is a copy of a linkonce section or due to
   6180  1.1  christos 		     linker script /DISCARD/, so we'll be discarding
   6181  1.1  christos 		     the relocs too.  */
   6182  1.1  christos 		}
   6183  1.1  christos 	      else if (htab->is_vxworks
   6184  1.1  christos 		       && strcmp (p->sec->output_section->name,
   6185  1.1  christos 				  ".tls_vars") == 0)
   6186  1.1  christos 		{
   6187  1.1  christos 		  /* Relocations in vxworks .tls_vars sections are
   6188  1.1  christos 		     handled specially by the loader.  */
   6189  1.1  christos 		}
   6190  1.1  christos 	      else if (p->count != 0)
   6191  1.1  christos 		{
   6192  1.1  christos 		  asection *sreloc = elf_section_data (p->sec)->sreloc;
   6193  1.1  christos 		  if (p->ifunc)
   6194  1.1  christos 		    sreloc = htab->reliplt;
   6195  1.1  christos 		  sreloc->size += p->count * sizeof (Elf32_External_Rela);
   6196  1.1  christos 		  if ((p->sec->output_section->flags
   6197  1.1  christos 		       & (SEC_READONLY | SEC_ALLOC))
   6198  1.1  christos 		      == (SEC_READONLY | SEC_ALLOC))
   6199  1.1  christos 		    info->flags |= DF_TEXTREL;
   6200  1.1  christos 		}
   6201  1.1  christos 	    }
   6202  1.1  christos 	}
   6203  1.1  christos 
   6204  1.1  christos       local_got = elf_local_got_refcounts (ibfd);
   6205  1.1  christos       if (!local_got)
   6206  1.1  christos 	continue;
   6207  1.1  christos 
   6208  1.1  christos       symtab_hdr = &elf_symtab_hdr (ibfd);
   6209  1.1  christos       locsymcount = symtab_hdr->sh_info;
   6210  1.1  christos       end_local_got = local_got + locsymcount;
   6211  1.1  christos       local_plt = (struct plt_entry **) end_local_got;
   6212  1.1  christos       end_local_plt = local_plt + locsymcount;
   6213  1.1  christos       lgot_masks = (char *) end_local_plt;
   6214  1.1  christos 
   6215  1.1  christos       for (; local_got < end_local_got; ++local_got, ++lgot_masks)
   6216  1.1  christos 	if (*local_got > 0)
   6217  1.1  christos 	  {
   6218  1.1  christos 	    unsigned int need = 0;
   6219  1.1  christos 	    if ((*lgot_masks & TLS_TLS) != 0)
   6220  1.1  christos 	      {
   6221  1.1  christos 		if ((*lgot_masks & TLS_GD) != 0)
   6222  1.1  christos 		  need += 8;
   6223  1.1  christos 		if ((*lgot_masks & TLS_LD) != 0)
   6224  1.1  christos 		  htab->tlsld_got.refcount += 1;
   6225  1.1  christos 		if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0)
   6226  1.1  christos 		  need += 4;
   6227  1.1  christos 		if ((*lgot_masks & TLS_DTPREL) != 0)
   6228  1.1  christos 		  need += 4;
   6229  1.1  christos 	      }
   6230  1.1  christos 	    else
   6231  1.1  christos 	      need += 4;
   6232  1.1  christos 	    if (need == 0)
   6233  1.1  christos 	      *local_got = (bfd_vma) -1;
   6234  1.1  christos 	    else
   6235  1.1  christos 	      {
   6236  1.1  christos 		*local_got = allocate_got (htab, need);
   6237  1.1  christos 		if (info->shared)
   6238  1.1  christos 		  {
   6239  1.1  christos 		    asection *srel = htab->relgot;
   6240  1.1  christos 		    if ((*lgot_masks & PLT_IFUNC) != 0)
   6241  1.1  christos 		      srel = htab->reliplt;
   6242  1.1  christos 		    srel->size += need * (sizeof (Elf32_External_Rela) / 4);
   6243  1.1  christos 		  }
   6244  1.1  christos 	      }
   6245  1.1  christos 	  }
   6246  1.1  christos 	else
   6247  1.1  christos 	  *local_got = (bfd_vma) -1;
   6248  1.1  christos 
   6249  1.1  christos       if (htab->is_vxworks)
   6250  1.1  christos 	continue;
   6251  1.1  christos 
   6252  1.1  christos       /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt.  */
   6253  1.1  christos       for (; local_plt < end_local_plt; ++local_plt)
   6254  1.1  christos 	{
   6255  1.1  christos 	  struct plt_entry *ent;
   6256  1.1  christos 	  bfd_boolean doneone = FALSE;
   6257  1.1  christos 	  bfd_vma plt_offset = 0, glink_offset = 0;
   6258  1.1  christos 
   6259  1.1  christos 	  for (ent = *local_plt; ent != NULL; ent = ent->next)
   6260  1.1  christos 	    if (ent->plt.refcount > 0)
   6261  1.1  christos 	      {
   6262  1.1  christos 		s = htab->iplt;
   6263  1.1  christos 
   6264  1.1  christos 		if (!doneone)
   6265  1.1  christos 		  {
   6266  1.1  christos 		    plt_offset = s->size;
   6267  1.1  christos 		    s->size += 4;
   6268  1.1  christos 		  }
   6269  1.1  christos 		ent->plt.offset = plt_offset;
   6270  1.1  christos 
   6271  1.1  christos 		s = htab->glink;
   6272  1.1  christos 		if (!doneone || info->shared)
   6273  1.1  christos 		  {
   6274  1.1  christos 		    glink_offset = s->size;
   6275  1.1  christos 		    s->size += GLINK_ENTRY_SIZE;
   6276  1.1  christos 		  }
   6277  1.1  christos 		ent->glink_offset = glink_offset;
   6278  1.1  christos 
   6279  1.1  christos 		if (!doneone)
   6280  1.1  christos 		  {
   6281  1.1  christos 		    htab->reliplt->size += sizeof (Elf32_External_Rela);
   6282  1.1  christos 		    doneone = TRUE;
   6283  1.1  christos 		  }
   6284  1.1  christos 	      }
   6285  1.1  christos 	    else
   6286  1.1  christos 	      ent->plt.offset = (bfd_vma) -1;
   6287  1.1  christos 	}
   6288  1.1  christos     }
   6289  1.1  christos 
   6290  1.1  christos   /* Allocate space for global sym dynamic relocs.  */
   6291  1.1  christos   elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info);
   6292  1.1  christos 
   6293  1.1  christos   if (htab->tlsld_got.refcount > 0)
   6294  1.1  christos     {
   6295  1.1  christos       htab->tlsld_got.offset = allocate_got (htab, 8);
   6296  1.1  christos       if (info->shared)
   6297  1.1  christos 	htab->relgot->size += sizeof (Elf32_External_Rela);
   6298  1.1  christos     }
   6299  1.1  christos   else
   6300  1.1  christos     htab->tlsld_got.offset = (bfd_vma) -1;
   6301  1.1  christos 
   6302  1.1  christos   if (htab->got != NULL && htab->plt_type != PLT_VXWORKS)
   6303  1.1  christos     {
   6304  1.1  christos       unsigned int g_o_t = 32768;
   6305  1.1  christos 
   6306  1.1  christos       /* If we haven't allocated the header, do so now.  When we get here,
   6307  1.1  christos 	 for old plt/got the got size will be 0 to 32764 (not allocated),
   6308  1.1  christos 	 or 32780 to 65536 (header allocated).  For new plt/got, the
   6309  1.1  christos 	 corresponding ranges are 0 to 32768 and 32780 to 65536.  */
   6310  1.1  christos       if (htab->got->size <= 32768)
   6311  1.1  christos 	{
   6312  1.1  christos 	  g_o_t = htab->got->size;
   6313  1.1  christos 	  if (htab->plt_type == PLT_OLD)
   6314  1.1  christos 	    g_o_t += 4;
   6315  1.1  christos 	  htab->got->size += htab->got_header_size;
   6316  1.1  christos 	}
   6317  1.1  christos 
   6318  1.1  christos       htab->elf.hgot->root.u.def.value = g_o_t;
   6319  1.1  christos     }
   6320  1.1  christos   if (info->shared)
   6321  1.1  christos     {
   6322  1.1  christos       struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   6323  1.1  christos       if (sda != NULL
   6324  1.1  christos 	  && !(sda->root.type == bfd_link_hash_defined
   6325  1.1  christos 	       || sda->root.type == bfd_link_hash_defweak))
   6326  1.1  christos 	{
   6327  1.1  christos 	  sda->root.type = bfd_link_hash_defined;
   6328  1.1  christos 	  sda->root.u.def.section = htab->elf.hgot->root.u.def.section;
   6329  1.1  christos 	  sda->root.u.def.value = htab->elf.hgot->root.u.def.value;
   6330  1.1  christos 	}
   6331  1.1  christos     }
   6332  1.1  christos 
   6333  1.1  christos   if (htab->glink != NULL
   6334  1.1  christos       && htab->glink->size != 0
   6335  1.1  christos       && htab->elf.dynamic_sections_created)
   6336  1.1  christos     {
   6337  1.1  christos       htab->glink_pltresolve = htab->glink->size;
   6338  1.1  christos       /* Space for the branch table.  */
   6339  1.1  christos       htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4;
   6340  1.1  christos       /* Pad out to align the start of PLTresolve.  */
   6341  1.1  christos       htab->glink->size += -htab->glink->size & 15;
   6342  1.1  christos       htab->glink->size += GLINK_PLTRESOLVE;
   6343  1.1  christos 
   6344  1.1  christos       if (htab->emit_stub_syms)
   6345  1.1  christos 	{
   6346  1.1  christos 	  struct elf_link_hash_entry *sh;
   6347  1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink",
   6348  1.1  christos 				     TRUE, FALSE, FALSE);
   6349  1.1  christos 	  if (sh == NULL)
   6350  1.1  christos 	    return FALSE;
   6351  1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6352  1.1  christos 	    {
   6353  1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6354  1.1  christos 	      sh->root.u.def.section = htab->glink;
   6355  1.1  christos 	      sh->root.u.def.value = htab->glink_pltresolve;
   6356  1.1  christos 	      sh->ref_regular = 1;
   6357  1.1  christos 	      sh->def_regular = 1;
   6358  1.1  christos 	      sh->ref_regular_nonweak = 1;
   6359  1.1  christos 	      sh->forced_local = 1;
   6360  1.1  christos 	      sh->non_elf = 0;
   6361  1.1  christos 	    }
   6362  1.1  christos 	  sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve",
   6363  1.1  christos 				     TRUE, FALSE, FALSE);
   6364  1.1  christos 	  if (sh == NULL)
   6365  1.1  christos 	    return FALSE;
   6366  1.1  christos 	  if (sh->root.type == bfd_link_hash_new)
   6367  1.1  christos 	    {
   6368  1.1  christos 	      sh->root.type = bfd_link_hash_defined;
   6369  1.1  christos 	      sh->root.u.def.section = htab->glink;
   6370  1.1  christos 	      sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE;
   6371  1.1  christos 	      sh->ref_regular = 1;
   6372  1.1  christos 	      sh->def_regular = 1;
   6373  1.1  christos 	      sh->ref_regular_nonweak = 1;
   6374  1.1  christos 	      sh->forced_local = 1;
   6375  1.1  christos 	      sh->non_elf = 0;
   6376  1.1  christos 	    }
   6377  1.1  christos 	}
   6378  1.1  christos     }
   6379  1.1  christos 
   6380  1.1  christos   if (htab->glink != NULL
   6381  1.1  christos       && htab->glink->size != 0
   6382  1.1  christos       && htab->glink_eh_frame != NULL
   6383  1.1  christos       && !bfd_is_abs_section (htab->glink_eh_frame->output_section)
   6384  1.1  christos       && _bfd_elf_eh_frame_present (info))
   6385  1.1  christos     {
   6386  1.1  christos       s = htab->glink_eh_frame;
   6387  1.1  christos       s->size = sizeof (glink_eh_frame_cie) + 20;
   6388  1.1  christos       if (info->shared)
   6389  1.1  christos 	{
   6390  1.1  christos 	  s->size += 4;
   6391  1.1  christos 	  if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256)
   6392  1.1  christos 	    s->size += 4;
   6393  1.1  christos 	}
   6394  1.1  christos     }
   6395  1.1  christos 
   6396  1.1  christos   /* We've now determined the sizes of the various dynamic sections.
   6397  1.1  christos      Allocate memory for them.  */
   6398  1.1  christos   relocs = FALSE;
   6399  1.1  christos   for (s = htab->elf.dynobj->sections; s != NULL; s = s->next)
   6400  1.1  christos     {
   6401  1.1  christos       bfd_boolean strip_section = TRUE;
   6402  1.1  christos 
   6403  1.1  christos       if ((s->flags & SEC_LINKER_CREATED) == 0)
   6404  1.1  christos 	continue;
   6405  1.1  christos 
   6406  1.1  christos       if (s == htab->plt
   6407  1.1  christos 	  || s == htab->got)
   6408  1.1  christos 	{
   6409  1.1  christos 	  /* We'd like to strip these sections if they aren't needed, but if
   6410  1.1  christos 	     we've exported dynamic symbols from them we must leave them.
   6411  1.1  christos 	     It's too late to tell BFD to get rid of the symbols.  */
   6412  1.1  christos 	  if (htab->elf.hplt != NULL)
   6413  1.1  christos 	    strip_section = FALSE;
   6414  1.1  christos 	  /* Strip this section if we don't need it; see the
   6415  1.1  christos 	     comment below.  */
   6416  1.1  christos 	}
   6417  1.1  christos       else if (s == htab->iplt
   6418  1.1  christos 	       || s == htab->glink
   6419  1.1  christos 	       || s == htab->glink_eh_frame
   6420  1.1  christos 	       || s == htab->sgotplt
   6421  1.1  christos 	       || s == htab->sbss
   6422  1.1  christos 	       || s == htab->dynbss
   6423  1.1  christos 	       || s == htab->dynsbss
   6424  1.1  christos 	       || s == htab->sdata[0].section
   6425  1.1  christos 	       || s == htab->sdata[1].section)
   6426  1.1  christos 	{
   6427  1.1  christos 	  /* Strip these too.  */
   6428  1.1  christos 	}
   6429  1.1  christos       else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s),
   6430  1.1  christos 			     ".rela"))
   6431  1.1  christos 	{
   6432  1.1  christos 	  if (s->size != 0)
   6433  1.1  christos 	    {
   6434  1.1  christos 	      /* Remember whether there are any relocation sections.  */
   6435  1.1  christos 	      relocs = TRUE;
   6436  1.1  christos 
   6437  1.1  christos 	      /* We use the reloc_count field as a counter if we need
   6438  1.1  christos 		 to copy relocs into the output file.  */
   6439  1.1  christos 	      s->reloc_count = 0;
   6440  1.1  christos 	    }
   6441  1.1  christos 	}
   6442  1.1  christos       else
   6443  1.1  christos 	{
   6444  1.1  christos 	  /* It's not one of our sections, so don't allocate space.  */
   6445  1.1  christos 	  continue;
   6446  1.1  christos 	}
   6447  1.1  christos 
   6448  1.1  christos       if (s->size == 0 && strip_section)
   6449  1.1  christos 	{
   6450  1.1  christos 	  /* If we don't need this section, strip it from the
   6451  1.1  christos 	     output file.  This is mostly to handle .rela.bss and
   6452  1.1  christos 	     .rela.plt.  We must create both sections in
   6453  1.1  christos 	     create_dynamic_sections, because they must be created
   6454  1.1  christos 	     before the linker maps input sections to output
   6455  1.1  christos 	     sections.  The linker does that before
   6456  1.1  christos 	     adjust_dynamic_symbol is called, and it is that
   6457  1.1  christos 	     function which decides whether anything needs to go
   6458  1.1  christos 	     into these sections.  */
   6459  1.1  christos 	  s->flags |= SEC_EXCLUDE;
   6460  1.1  christos 	  continue;
   6461  1.1  christos 	}
   6462  1.1  christos 
   6463  1.1  christos       if ((s->flags & SEC_HAS_CONTENTS) == 0)
   6464  1.1  christos 	continue;
   6465  1.1  christos 
   6466  1.1  christos       /* Allocate memory for the section contents.  */
   6467  1.1  christos       s->contents = bfd_zalloc (htab->elf.dynobj, s->size);
   6468  1.1  christos       if (s->contents == NULL)
   6469  1.1  christos 	return FALSE;
   6470  1.1  christos     }
   6471  1.1  christos 
   6472  1.1  christos   if (htab->elf.dynamic_sections_created)
   6473  1.1  christos     {
   6474  1.1  christos       /* Add some entries to the .dynamic section.  We fill in the
   6475  1.1  christos 	 values later, in ppc_elf_finish_dynamic_sections, but we
   6476  1.1  christos 	 must add the entries now so that we get the correct size for
   6477  1.1  christos 	 the .dynamic section.  The DT_DEBUG entry is filled in by the
   6478  1.1  christos 	 dynamic linker and used by the debugger.  */
   6479  1.1  christos #define add_dynamic_entry(TAG, VAL) \
   6480  1.1  christos   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
   6481  1.1  christos 
   6482  1.1  christos       if (info->executable)
   6483  1.1  christos 	{
   6484  1.1  christos 	  if (!add_dynamic_entry (DT_DEBUG, 0))
   6485  1.1  christos 	    return FALSE;
   6486  1.1  christos 	}
   6487  1.1  christos 
   6488  1.1  christos       if (htab->plt != NULL && htab->plt->size != 0)
   6489  1.1  christos 	{
   6490  1.1  christos 	  if (!add_dynamic_entry (DT_PLTGOT, 0)
   6491  1.1  christos 	      || !add_dynamic_entry (DT_PLTRELSZ, 0)
   6492  1.1  christos 	      || !add_dynamic_entry (DT_PLTREL, DT_RELA)
   6493  1.1  christos 	      || !add_dynamic_entry (DT_JMPREL, 0))
   6494  1.1  christos 	    return FALSE;
   6495  1.1  christos 	}
   6496  1.1  christos 
   6497  1.1  christos       if (htab->glink != NULL && htab->glink->size != 0)
   6498  1.1  christos 	{
   6499  1.1  christos 	  if (!add_dynamic_entry (DT_PPC_GOT, 0))
   6500  1.1  christos 	    return FALSE;
   6501  1.1  christos 	  if (!htab->no_tls_get_addr_opt
   6502  1.1  christos 	      && htab->tls_get_addr != NULL
   6503  1.1  christos 	      && htab->tls_get_addr->plt.plist != NULL
   6504  1.1  christos 	      && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS))
   6505  1.1  christos 	    return FALSE;
   6506  1.1  christos 	}
   6507  1.1  christos 
   6508  1.1  christos       if (relocs)
   6509  1.1  christos 	{
   6510  1.1  christos 	  if (!add_dynamic_entry (DT_RELA, 0)
   6511  1.1  christos 	      || !add_dynamic_entry (DT_RELASZ, 0)
   6512  1.1  christos 	      || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
   6513  1.1  christos 	    return FALSE;
   6514  1.1  christos 	}
   6515  1.1  christos 
   6516  1.1  christos       /* If any dynamic relocs apply to a read-only section, then we
   6517  1.1  christos 	 need a DT_TEXTREL entry.  */
   6518  1.1  christos       if ((info->flags & DF_TEXTREL) == 0)
   6519  1.1  christos 	elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel,
   6520  1.1  christos 				info);
   6521  1.1  christos 
   6522  1.1  christos       if ((info->flags & DF_TEXTREL) != 0)
   6523  1.1  christos 	{
   6524  1.1  christos 	  if (!add_dynamic_entry (DT_TEXTREL, 0))
   6525  1.1  christos 	    return FALSE;
   6526  1.1  christos 	}
   6527  1.1  christos       if (htab->is_vxworks
   6528  1.1  christos 	  && !elf_vxworks_add_dynamic_entries (output_bfd, info))
   6529  1.1  christos 	return FALSE;
   6530  1.1  christos    }
   6531  1.1  christos #undef add_dynamic_entry
   6532  1.1  christos 
   6533  1.1  christos   if (htab->glink_eh_frame != NULL
   6534  1.1  christos       && htab->glink_eh_frame->contents != NULL)
   6535  1.1  christos     {
   6536  1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   6537  1.1  christos       bfd_vma val;
   6538  1.1  christos 
   6539  1.1  christos       memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie));
   6540  1.1  christos       /* CIE length (rewrite in case little-endian).  */
   6541  1.1  christos       bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p);
   6542  1.1  christos       p += sizeof (glink_eh_frame_cie);
   6543  1.1  christos       /* FDE length.  */
   6544  1.1  christos       val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie);
   6545  1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   6546  1.1  christos       p += 4;
   6547  1.1  christos       /* CIE pointer.  */
   6548  1.1  christos       val = p - htab->glink_eh_frame->contents;
   6549  1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   6550  1.1  christos       p += 4;
   6551  1.1  christos       /* Offset to .glink.  Set later.  */
   6552  1.1  christos       p += 4;
   6553  1.1  christos       /* .glink size.  */
   6554  1.1  christos       bfd_put_32 (htab->elf.dynobj, htab->glink->size, p);
   6555  1.1  christos       p += 4;
   6556  1.1  christos       /* Augmentation.  */
   6557  1.1  christos       p += 1;
   6558  1.1  christos 
   6559  1.1  christos       if (info->shared
   6560  1.1  christos 	  && htab->elf.dynamic_sections_created)
   6561  1.1  christos 	{
   6562  1.1  christos 	  bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2;
   6563  1.1  christos 	  if (adv < 64)
   6564  1.1  christos 	    *p++ = DW_CFA_advance_loc + adv;
   6565  1.1  christos 	  else if (adv < 256)
   6566  1.1  christos 	    {
   6567  1.1  christos 	      *p++ = DW_CFA_advance_loc1;
   6568  1.1  christos 	      *p++ = adv;
   6569  1.1  christos 	    }
   6570  1.1  christos 	  else if (adv < 65536)
   6571  1.1  christos 	    {
   6572  1.1  christos 	      *p++ = DW_CFA_advance_loc2;
   6573  1.1  christos 	      bfd_put_16 (htab->elf.dynobj, adv, p);
   6574  1.1  christos 	      p += 2;
   6575  1.1  christos 	    }
   6576  1.1  christos 	  else
   6577  1.1  christos 	    {
   6578  1.1  christos 	      *p++ = DW_CFA_advance_loc4;
   6579  1.1  christos 	      bfd_put_32 (htab->elf.dynobj, adv, p);
   6580  1.1  christos 	      p += 4;
   6581  1.1  christos 	    }
   6582  1.1  christos 	  *p++ = DW_CFA_register;
   6583  1.1  christos 	  *p++ = 65;
   6584  1.1  christos 	  p++;
   6585  1.1  christos 	  *p++ = DW_CFA_advance_loc + 4;
   6586  1.1  christos 	  *p++ = DW_CFA_restore_extended;
   6587  1.1  christos 	  *p++ = 65;
   6588  1.1  christos 	}
   6589  1.1  christos       BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4)
   6590  1.1  christos 		  == htab->glink_eh_frame->size);
   6591  1.1  christos     }
   6592  1.1  christos 
   6593  1.1  christos   return TRUE;
   6594  1.1  christos }
   6595  1.1  christos 
   6596  1.1  christos /* Return TRUE if symbol should be hashed in the `.gnu.hash' section.  */
   6597  1.1  christos 
   6598  1.1  christos static bfd_boolean
   6599  1.1  christos ppc_elf_hash_symbol (struct elf_link_hash_entry *h)
   6600  1.1  christos {
   6601  1.1  christos   if (h->plt.plist != NULL
   6602  1.1  christos       && !h->def_regular
   6603  1.1  christos       && (!h->pointer_equality_needed
   6604  1.1  christos 	  || !h->ref_regular_nonweak))
   6605  1.1  christos     return FALSE;
   6606  1.1  christos 
   6607  1.1  christos   return _bfd_elf_hash_symbol (h);
   6608  1.1  christos }
   6609  1.1  christos 
   6610  1.1  christos #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
   6612  1.1  christos 
   6613  1.1  christos /* Relaxation trampolines.  r12 is available for clobbering (r11, is
   6614  1.1  christos    used for some functions that are allowed to break the ABI).  */
   6615  1.1  christos static const int shared_stub_entry[] =
   6616  1.1  christos   {
   6617  1.1  christos     0x7c0802a6, /* mflr 0 */
   6618  1.1  christos     0x429f0005, /* bcl 20, 31, .Lxxx */
   6619  1.1  christos     0x7d8802a6, /* mflr 12 */
   6620  1.1  christos     0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */
   6621  1.1  christos     0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */
   6622  1.1  christos     0x7c0803a6, /* mtlr 0 */
   6623  1.1  christos     0x7d8903a6, /* mtctr 12 */
   6624  1.1  christos     0x4e800420, /* bctr */
   6625  1.1  christos   };
   6626  1.1  christos 
   6627  1.1  christos static const int stub_entry[] =
   6628  1.1  christos   {
   6629  1.1  christos     0x3d800000, /* lis 12,xxx@ha */
   6630  1.1  christos     0x398c0000, /* addi 12,12,xxx@l */
   6631  1.1  christos     0x7d8903a6, /* mtctr 12 */
   6632  1.1  christos     0x4e800420, /* bctr */
   6633  1.1  christos   };
   6634  1.1  christos 
   6635  1.1  christos static bfd_boolean
   6636  1.1  christos ppc_elf_relax_section (bfd *abfd,
   6637  1.1  christos 		       asection *isec,
   6638  1.1  christos 		       struct bfd_link_info *link_info,
   6639  1.1  christos 		       bfd_boolean *again)
   6640  1.1  christos {
   6641  1.1  christos   struct one_fixup
   6642  1.1  christos   {
   6643  1.1  christos     struct one_fixup *next;
   6644  1.1  christos     asection *tsec;
   6645  1.1  christos     /* Final link, can use the symbol offset.  For a
   6646  1.1  christos        relocatable link we use the symbol's index.  */
   6647  1.1  christos     bfd_vma toff;
   6648  1.1  christos     bfd_vma trampoff;
   6649  1.1  christos   };
   6650  1.1  christos 
   6651  1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   6652  1.1  christos   bfd_byte *contents = NULL;
   6653  1.1  christos   Elf_Internal_Sym *isymbuf = NULL;
   6654  1.1  christos   Elf_Internal_Rela *internal_relocs = NULL;
   6655  1.1  christos   Elf_Internal_Rela *irel, *irelend;
   6656  1.1  christos   struct one_fixup *fixups = NULL;
   6657  1.1  christos   unsigned changes = 0;
   6658  1.1  christos   struct ppc_elf_link_hash_table *htab;
   6659  1.1  christos   bfd_size_type trampoff;
   6660  1.1  christos   asection *got2;
   6661  1.1  christos   bfd_boolean maybe_pasted;
   6662  1.1  christos 
   6663  1.1  christos   *again = FALSE;
   6664  1.1  christos 
   6665  1.1  christos   /* Nothing to do if there are no relocations, and no need to do
   6666  1.1  christos      anything with non-alloc or non-code sections.  */
   6667  1.1  christos   if ((isec->flags & SEC_ALLOC) == 0
   6668  1.1  christos       || (isec->flags & SEC_CODE) == 0
   6669  1.1  christos       || (isec->flags & SEC_RELOC) == 0
   6670  1.1  christos       || isec->reloc_count == 0)
   6671  1.1  christos     return TRUE;
   6672  1.1  christos 
   6673  1.1  christos   /* We cannot represent the required PIC relocs in the output, so don't
   6674  1.1  christos      do anything.  The linker doesn't support mixing -shared and -r
   6675  1.1  christos      anyway.  */
   6676  1.1  christos   if (link_info->relocatable && link_info->shared)
   6677  1.1  christos      return TRUE;
   6678  1.1  christos 
   6679  1.1  christos   trampoff = (isec->size + 3) & (bfd_vma) -4;
   6680  1.1  christos   maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0
   6681  1.1  christos 		  || strcmp (isec->output_section->name, ".fini") == 0);
   6682  1.1  christos   /* Space for a branch around any trampolines.  */
   6683  1.1  christos   if (maybe_pasted)
   6684  1.1  christos     trampoff += 4;
   6685  1.1  christos 
   6686  1.1  christos   symtab_hdr = &elf_symtab_hdr (abfd);
   6687  1.1  christos 
   6688  1.1  christos   /* Get a copy of the native relocations.  */
   6689  1.1  christos   internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL,
   6690  1.1  christos 					       link_info->keep_memory);
   6691  1.1  christos   if (internal_relocs == NULL)
   6692  1.1  christos     goto error_return;
   6693  1.1  christos 
   6694  1.1  christos   htab = ppc_elf_hash_table (link_info);
   6695  1.1  christos   got2 = bfd_get_section_by_name (abfd, ".got2");
   6696  1.1  christos 
   6697  1.1  christos   irelend = internal_relocs + isec->reloc_count;
   6698  1.1  christos   for (irel = internal_relocs; irel < irelend; irel++)
   6699  1.1  christos     {
   6700  1.1  christos       unsigned long r_type = ELF32_R_TYPE (irel->r_info);
   6701  1.1  christos       bfd_vma toff, roff;
   6702  1.1  christos       asection *tsec;
   6703  1.1  christos       struct one_fixup *f;
   6704  1.1  christos       size_t insn_offset = 0;
   6705  1.1  christos       bfd_vma max_branch_offset, val;
   6706  1.1  christos       bfd_byte *hit_addr;
   6707  1.1  christos       unsigned long t0;
   6708  1.1  christos       struct elf_link_hash_entry *h;
   6709  1.1  christos       struct plt_entry **plist;
   6710  1.1  christos       unsigned char sym_type;
   6711  1.1  christos 
   6712  1.1  christos       switch (r_type)
   6713  1.1  christos 	{
   6714  1.1  christos 	case R_PPC_REL24:
   6715  1.1  christos 	case R_PPC_LOCAL24PC:
   6716  1.1  christos 	case R_PPC_PLTREL24:
   6717  1.1  christos 	  max_branch_offset = 1 << 25;
   6718  1.1  christos 	  break;
   6719  1.1  christos 
   6720  1.1  christos 	case R_PPC_REL14:
   6721  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   6722  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   6723  1.1  christos 	  max_branch_offset = 1 << 15;
   6724  1.1  christos 	  break;
   6725  1.1  christos 
   6726  1.1  christos 	default:
   6727  1.1  christos 	  continue;
   6728  1.1  christos 	}
   6729  1.1  christos 
   6730  1.1  christos       /* Get the value of the symbol referred to by the reloc.  */
   6731  1.1  christos       h = NULL;
   6732  1.1  christos       if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
   6733  1.1  christos 	{
   6734  1.1  christos 	  /* A local symbol.  */
   6735  1.1  christos 	  Elf_Internal_Sym *isym;
   6736  1.1  christos 
   6737  1.1  christos 	  /* Read this BFD's local symbols.  */
   6738  1.1  christos 	  if (isymbuf == NULL)
   6739  1.1  christos 	    {
   6740  1.1  christos 	      isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
   6741  1.1  christos 	      if (isymbuf == NULL)
   6742  1.1  christos 		isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
   6743  1.1  christos 						symtab_hdr->sh_info, 0,
   6744  1.1  christos 						NULL, NULL, NULL);
   6745  1.1  christos 	      if (isymbuf == 0)
   6746  1.1  christos 		goto error_return;
   6747  1.1  christos 	    }
   6748  1.1  christos 	  isym = isymbuf + ELF32_R_SYM (irel->r_info);
   6749  1.1  christos 	  if (isym->st_shndx == SHN_UNDEF)
   6750  1.1  christos 	    tsec = bfd_und_section_ptr;
   6751  1.1  christos 	  else if (isym->st_shndx == SHN_ABS)
   6752  1.1  christos 	    tsec = bfd_abs_section_ptr;
   6753  1.1  christos 	  else if (isym->st_shndx == SHN_COMMON)
   6754  1.1  christos 	    tsec = bfd_com_section_ptr;
   6755  1.1  christos 	  else
   6756  1.1  christos 	    tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
   6757  1.1  christos 
   6758  1.1  christos 	  toff = isym->st_value;
   6759  1.1  christos 	  sym_type = ELF_ST_TYPE (isym->st_info);
   6760  1.1  christos 	}
   6761  1.1  christos       else
   6762  1.1  christos 	{
   6763  1.1  christos 	  /* Global symbol handling.  */
   6764  1.1  christos 	  unsigned long indx;
   6765  1.1  christos 
   6766  1.1  christos 	  indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
   6767  1.1  christos 	  h = elf_sym_hashes (abfd)[indx];
   6768  1.1  christos 
   6769  1.1  christos 	  while (h->root.type == bfd_link_hash_indirect
   6770  1.1  christos 		 || h->root.type == bfd_link_hash_warning)
   6771  1.1  christos 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   6772  1.1  christos 
   6773  1.1  christos 	  if (h->root.type == bfd_link_hash_defined
   6774  1.1  christos 	      || h->root.type == bfd_link_hash_defweak)
   6775  1.1  christos 	    {
   6776  1.1  christos 	      tsec = h->root.u.def.section;
   6777  1.1  christos 	      toff = h->root.u.def.value;
   6778  1.1  christos 	    }
   6779  1.1  christos 	  else if (h->root.type == bfd_link_hash_undefined
   6780  1.1  christos 		   || h->root.type == bfd_link_hash_undefweak)
   6781  1.1  christos 	    {
   6782  1.1  christos 	      tsec = bfd_und_section_ptr;
   6783  1.1  christos 	      toff = link_info->relocatable ? indx : 0;
   6784  1.1  christos 	    }
   6785  1.1  christos 	  else
   6786  1.1  christos 	    continue;
   6787  1.1  christos 
   6788  1.1  christos 	  sym_type = h->type;
   6789  1.1  christos 	}
   6790  1.1  christos 
   6791  1.1  christos       /* The condition here under which we call find_plt_ent must
   6792  1.1  christos 	 match that in relocate_section.  If we call find_plt_ent here
   6793  1.1  christos 	 but not in relocate_section, or vice versa, then the branch
   6794  1.1  christos 	 destination used here may be incorrect.  */
   6795  1.1  christos       plist = NULL;
   6796  1.1  christos       if (h != NULL)
   6797  1.1  christos 	{
   6798  1.1  christos 	  /* We know is_branch_reloc (r_type) is true.  */
   6799  1.1  christos 	  if (h->type == STT_GNU_IFUNC
   6800  1.1  christos 	      || r_type == R_PPC_PLTREL24)
   6801  1.1  christos 	    plist = &h->plt.plist;
   6802  1.1  christos 	}
   6803  1.1  christos       else if (sym_type == STT_GNU_IFUNC
   6804  1.1  christos 	       && elf_local_got_offsets (abfd) != NULL)
   6805  1.1  christos 	{
   6806  1.1  christos 	  bfd_vma *local_got_offsets = elf_local_got_offsets (abfd);
   6807  1.1  christos 	  struct plt_entry **local_plt = (struct plt_entry **)
   6808  1.1  christos 	    (local_got_offsets + symtab_hdr->sh_info);
   6809  1.1  christos 	  plist = local_plt + ELF32_R_SYM (irel->r_info);
   6810  1.1  christos 	}
   6811  1.1  christos       if (plist != NULL)
   6812  1.1  christos 	{
   6813  1.1  christos 	  bfd_vma addend = 0;
   6814  1.1  christos 	  struct plt_entry *ent;
   6815  1.1  christos 
   6816  1.1  christos 	  if (r_type == R_PPC_PLTREL24 && link_info->shared)
   6817  1.1  christos 	    addend = irel->r_addend;
   6818  1.1  christos 	  ent = find_plt_ent (plist, got2, addend);
   6819  1.1  christos 	  if (ent != NULL)
   6820  1.1  christos 	    {
   6821  1.1  christos 	      if (htab->plt_type == PLT_NEW
   6822  1.1  christos 		  || h == NULL
   6823  1.1  christos 		  || !htab->elf.dynamic_sections_created
   6824  1.1  christos 		  || h->dynindx == -1)
   6825  1.1  christos 		{
   6826  1.1  christos 		  tsec = htab->glink;
   6827  1.1  christos 		  toff = ent->glink_offset;
   6828  1.1  christos 		}
   6829  1.1  christos 	      else
   6830  1.1  christos 		{
   6831  1.1  christos 		  tsec = htab->plt;
   6832  1.1  christos 		  toff = ent->plt.offset;
   6833  1.1  christos 		}
   6834  1.1  christos 	    }
   6835  1.1  christos 	}
   6836  1.1  christos 
   6837  1.1  christos       /* If the branch and target are in the same section, you have
   6838  1.1  christos 	 no hope of adding stubs.  We'll error out later should the
   6839  1.1  christos 	 branch overflow.  */
   6840  1.1  christos       if (tsec == isec)
   6841  1.1  christos 	continue;
   6842  1.1  christos 
   6843  1.1  christos       /* There probably isn't any reason to handle symbols in
   6844  1.1  christos 	 SEC_MERGE sections;  SEC_MERGE doesn't seem a likely
   6845  1.1  christos 	 attribute for a code section, and we are only looking at
   6846  1.1  christos 	 branches.  However, implement it correctly here as a
   6847  1.1  christos 	 reference for other target relax_section functions.  */
   6848  1.1  christos       if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
   6849  1.1  christos 	{
   6850  1.1  christos 	  /* At this stage in linking, no SEC_MERGE symbol has been
   6851  1.1  christos 	     adjusted, so all references to such symbols need to be
   6852  1.1  christos 	     passed through _bfd_merged_section_offset.  (Later, in
   6853  1.1  christos 	     relocate_section, all SEC_MERGE symbols *except* for
   6854  1.1  christos 	     section symbols have been adjusted.)
   6855  1.1  christos 
   6856  1.1  christos 	     gas may reduce relocations against symbols in SEC_MERGE
   6857  1.1  christos 	     sections to a relocation against the section symbol when
   6858  1.1  christos 	     the original addend was zero.  When the reloc is against
   6859  1.1  christos 	     a section symbol we should include the addend in the
   6860  1.1  christos 	     offset passed to _bfd_merged_section_offset, since the
   6861  1.1  christos 	     location of interest is the original symbol.  On the
   6862  1.1  christos 	     other hand, an access to "sym+addend" where "sym" is not
   6863  1.1  christos 	     a section symbol should not include the addend;  Such an
   6864  1.1  christos 	     access is presumed to be an offset from "sym";  The
   6865  1.1  christos 	     location of interest is just "sym".  */
   6866  1.1  christos 	  if (sym_type == STT_SECTION)
   6867  1.1  christos 	    toff += irel->r_addend;
   6868  1.1  christos 
   6869  1.1  christos 	  toff = _bfd_merged_section_offset (abfd, &tsec,
   6870  1.1  christos 					     elf_section_data (tsec)->sec_info,
   6871  1.1  christos 					     toff);
   6872  1.1  christos 
   6873  1.1  christos 	  if (sym_type != STT_SECTION)
   6874  1.1  christos 	    toff += irel->r_addend;
   6875  1.1  christos 	}
   6876  1.1  christos       /* PLTREL24 addends are special.  */
   6877  1.1  christos       else if (r_type != R_PPC_PLTREL24)
   6878  1.1  christos 	toff += irel->r_addend;
   6879  1.1  christos 
   6880  1.1  christos       /* Attempted -shared link of non-pic code loses.  */
   6881  1.1  christos       if (tsec->output_section == NULL)
   6882  1.1  christos 	continue;
   6883  1.1  christos 
   6884  1.1  christos       roff = irel->r_offset;
   6885  1.1  christos 
   6886  1.1  christos       /* If the branch is in range, no need to do anything.  */
   6887  1.1  christos       if (tsec != bfd_und_section_ptr
   6888  1.1  christos 	  && (!link_info->relocatable
   6889  1.1  christos 	      /* A relocatable link may have sections moved during
   6890  1.1  christos 		 final link, so do not presume they remain in range.  */
   6891  1.1  christos 	      || tsec->output_section == isec->output_section))
   6892  1.1  christos 	{
   6893  1.1  christos 	  bfd_vma symaddr, reladdr;
   6894  1.1  christos 
   6895  1.1  christos 	  symaddr = tsec->output_section->vma + tsec->output_offset + toff;
   6896  1.1  christos 	  reladdr = isec->output_section->vma + isec->output_offset + roff;
   6897  1.1  christos 	  if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset)
   6898  1.1  christos 	    continue;
   6899  1.1  christos 	}
   6900  1.1  christos 
   6901  1.1  christos       /* Look for an existing fixup to this address.  */
   6902  1.1  christos       for (f = fixups; f ; f = f->next)
   6903  1.1  christos 	if (f->tsec == tsec && f->toff == toff)
   6904  1.1  christos 	  break;
   6905  1.1  christos 
   6906  1.1  christos       if (f == NULL)
   6907  1.1  christos 	{
   6908  1.1  christos 	  size_t size;
   6909  1.1  christos 	  unsigned long stub_rtype;
   6910  1.1  christos 
   6911  1.1  christos 	  val = trampoff - roff;
   6912  1.1  christos 	  if (val >= max_branch_offset)
   6913  1.1  christos 	    /* Oh dear, we can't reach a trampoline.  Don't try to add
   6914  1.1  christos 	       one.  We'll report an error later.  */
   6915  1.1  christos 	    continue;
   6916  1.1  christos 
   6917  1.1  christos 	  if (link_info->shared)
   6918  1.1  christos 	    {
   6919  1.1  christos 	      size = 4 * ARRAY_SIZE (shared_stub_entry);
   6920  1.1  christos 	      insn_offset = 12;
   6921  1.1  christos 	    }
   6922  1.1  christos 	  else
   6923  1.1  christos 	    {
   6924  1.1  christos 	      size = 4 * ARRAY_SIZE (stub_entry);
   6925  1.1  christos 	      insn_offset = 0;
   6926  1.1  christos 	    }
   6927  1.1  christos 	  stub_rtype = R_PPC_RELAX;
   6928  1.1  christos 	  if (tsec == htab->plt
   6929  1.1  christos 	      || tsec == htab->glink)
   6930  1.1  christos 	    {
   6931  1.1  christos 	      stub_rtype = R_PPC_RELAX_PLT;
   6932  1.1  christos 	      if (r_type == R_PPC_PLTREL24)
   6933  1.1  christos 		stub_rtype = R_PPC_RELAX_PLTREL24;
   6934  1.1  christos 	    }
   6935  1.1  christos 
   6936  1.1  christos 	  /* Hijack the old relocation.  Since we need two
   6937  1.1  christos 	     relocations for this use a "composite" reloc.  */
   6938  1.1  christos 	  irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
   6939  1.1  christos 				       stub_rtype);
   6940  1.1  christos 	  irel->r_offset = trampoff + insn_offset;
   6941  1.1  christos 	  if (r_type == R_PPC_PLTREL24
   6942  1.1  christos 	      && stub_rtype != R_PPC_RELAX_PLTREL24)
   6943  1.1  christos 	    irel->r_addend = 0;
   6944  1.1  christos 
   6945  1.1  christos 	  /* Record the fixup so we don't do it again this section.  */
   6946  1.1  christos 	  f = bfd_malloc (sizeof (*f));
   6947  1.1  christos 	  f->next = fixups;
   6948  1.1  christos 	  f->tsec = tsec;
   6949  1.1  christos 	  f->toff = toff;
   6950  1.1  christos 	  f->trampoff = trampoff;
   6951  1.1  christos 	  fixups = f;
   6952  1.1  christos 
   6953  1.1  christos 	  trampoff += size;
   6954  1.1  christos 	  changes++;
   6955  1.1  christos 	}
   6956  1.1  christos       else
   6957  1.1  christos 	{
   6958  1.1  christos 	  val = f->trampoff - roff;
   6959  1.1  christos 	  if (val >= max_branch_offset)
   6960  1.1  christos 	    continue;
   6961  1.1  christos 
   6962  1.1  christos 	  /* Nop out the reloc, since we're finalizing things here.  */
   6963  1.1  christos 	  irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   6964  1.1  christos 	}
   6965  1.1  christos 
   6966  1.1  christos       /* Get the section contents.  */
   6967  1.1  christos       if (contents == NULL)
   6968  1.1  christos 	{
   6969  1.1  christos 	  /* Get cached copy if it exists.  */
   6970  1.1  christos 	  if (elf_section_data (isec)->this_hdr.contents != NULL)
   6971  1.1  christos 	    contents = elf_section_data (isec)->this_hdr.contents;
   6972  1.1  christos 	  else
   6973  1.1  christos 	    {
   6974  1.1  christos 	      /* Go get them off disk.  */
   6975  1.1  christos 	      if (!bfd_malloc_and_get_section (abfd, isec, &contents))
   6976  1.1  christos 		goto error_return;
   6977  1.1  christos 	    }
   6978  1.1  christos 	}
   6979  1.1  christos 
   6980  1.1  christos       /* Fix up the existing branch to hit the trampoline.  */
   6981  1.1  christos       hit_addr = contents + roff;
   6982  1.1  christos       switch (r_type)
   6983  1.1  christos 	{
   6984  1.1  christos 	case R_PPC_REL24:
   6985  1.1  christos 	case R_PPC_LOCAL24PC:
   6986  1.1  christos 	case R_PPC_PLTREL24:
   6987  1.1  christos 	  t0 = bfd_get_32 (abfd, hit_addr);
   6988  1.1  christos 	  t0 &= ~0x3fffffc;
   6989  1.1  christos 	  t0 |= val & 0x3fffffc;
   6990  1.1  christos 	  bfd_put_32 (abfd, t0, hit_addr);
   6991  1.1  christos 	  break;
   6992  1.1  christos 
   6993  1.1  christos 	case R_PPC_REL14:
   6994  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   6995  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   6996  1.1  christos 	  t0 = bfd_get_32 (abfd, hit_addr);
   6997  1.1  christos 	  t0 &= ~0xfffc;
   6998  1.1  christos 	  t0 |= val & 0xfffc;
   6999  1.1  christos 	  bfd_put_32 (abfd, t0, hit_addr);
   7000  1.1  christos 	  break;
   7001  1.1  christos 	}
   7002  1.1  christos     }
   7003  1.1  christos 
   7004  1.1  christos   /* Write out the trampolines.  */
   7005  1.1  christos   if (fixups != NULL)
   7006  1.1  christos     {
   7007  1.1  christos       const int *stub;
   7008  1.1  christos       bfd_byte *dest;
   7009  1.1  christos       int i, size;
   7010  1.1  christos 
   7011  1.1  christos       do
   7012  1.1  christos 	{
   7013  1.1  christos 	  struct one_fixup *f = fixups;
   7014  1.1  christos 	  fixups = fixups->next;
   7015  1.1  christos 	  free (f);
   7016  1.1  christos 	}
   7017  1.1  christos       while (fixups);
   7018  1.1  christos 
   7019  1.1  christos       contents = bfd_realloc_or_free (contents, trampoff);
   7020  1.1  christos       if (contents == NULL)
   7021  1.1  christos 	goto error_return;
   7022  1.1  christos 
   7023  1.1  christos       isec->size = (isec->size + 3) & (bfd_vma) -4;
   7024  1.1  christos       dest = contents + isec->size;
   7025  1.1  christos       /* Branch around the trampolines.  */
   7026  1.1  christos       if (maybe_pasted)
   7027  1.1  christos 	{
   7028  1.1  christos 	  bfd_vma val = B + trampoff - isec->size;
   7029  1.1  christos 	  bfd_put_32 (abfd, val, dest);
   7030  1.1  christos 	  dest += 4;
   7031  1.1  christos 	}
   7032  1.1  christos       isec->size = trampoff;
   7033  1.1  christos 
   7034  1.1  christos       if (link_info->shared)
   7035  1.1  christos 	{
   7036  1.1  christos 	  stub = shared_stub_entry;
   7037  1.1  christos 	  size = ARRAY_SIZE (shared_stub_entry);
   7038  1.1  christos 	}
   7039  1.1  christos       else
   7040  1.1  christos 	{
   7041  1.1  christos 	  stub = stub_entry;
   7042  1.1  christos 	  size = ARRAY_SIZE (stub_entry);
   7043  1.1  christos 	}
   7044  1.1  christos 
   7045  1.1  christos       i = 0;
   7046  1.1  christos       while (dest < contents + trampoff)
   7047  1.1  christos 	{
   7048  1.1  christos 	  bfd_put_32 (abfd, stub[i], dest);
   7049  1.1  christos 	  i++;
   7050  1.1  christos 	  if (i == size)
   7051  1.1  christos 	    i = 0;
   7052  1.1  christos 	  dest += 4;
   7053  1.1  christos 	}
   7054  1.1  christos       BFD_ASSERT (i == 0);
   7055  1.1  christos     }
   7056  1.1  christos 
   7057  1.1  christos   if (isymbuf != NULL
   7058  1.1  christos       && symtab_hdr->contents != (unsigned char *) isymbuf)
   7059  1.1  christos     {
   7060  1.1  christos       if (! link_info->keep_memory)
   7061  1.1  christos 	free (isymbuf);
   7062  1.1  christos       else
   7063  1.1  christos 	{
   7064  1.1  christos 	  /* Cache the symbols for elf_link_input_bfd.  */
   7065  1.1  christos 	  symtab_hdr->contents = (unsigned char *) isymbuf;
   7066  1.1  christos 	}
   7067  1.1  christos     }
   7068  1.1  christos 
   7069  1.1  christos   if (contents != NULL
   7070  1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7071  1.1  christos     {
   7072  1.1  christos       if (!changes && !link_info->keep_memory)
   7073  1.1  christos 	free (contents);
   7074  1.1  christos       else
   7075  1.1  christos 	{
   7076  1.1  christos 	  /* Cache the section contents for elf_link_input_bfd.  */
   7077  1.1  christos 	  elf_section_data (isec)->this_hdr.contents = contents;
   7078  1.1  christos 	}
   7079  1.1  christos     }
   7080  1.1  christos 
   7081  1.1  christos   if (changes != 0)
   7082  1.1  christos     {
   7083  1.1  christos       /* Append sufficient NOP relocs so we can write out relocation
   7084  1.1  christos 	 information for the trampolines.  */
   7085  1.1  christos       Elf_Internal_Shdr *rel_hdr;
   7086  1.1  christos       Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count)
   7087  1.1  christos 						  * sizeof (*new_relocs));
   7088  1.1  christos       unsigned ix;
   7089  1.1  christos 
   7090  1.1  christos       if (!new_relocs)
   7091  1.1  christos 	goto error_return;
   7092  1.1  christos       memcpy (new_relocs, internal_relocs,
   7093  1.1  christos 	      isec->reloc_count * sizeof (*new_relocs));
   7094  1.1  christos       for (ix = changes; ix--;)
   7095  1.1  christos 	{
   7096  1.1  christos 	  irel = new_relocs + ix + isec->reloc_count;
   7097  1.1  christos 
   7098  1.1  christos 	  irel->r_info = ELF32_R_INFO (0, R_PPC_NONE);
   7099  1.1  christos 	}
   7100  1.1  christos       if (internal_relocs != elf_section_data (isec)->relocs)
   7101  1.1  christos 	free (internal_relocs);
   7102  1.1  christos       elf_section_data (isec)->relocs = new_relocs;
   7103  1.1  christos       isec->reloc_count += changes;
   7104  1.1  christos       rel_hdr = _bfd_elf_single_rel_hdr (isec);
   7105  1.1  christos       rel_hdr->sh_size += changes * rel_hdr->sh_entsize;
   7106  1.1  christos     }
   7107  1.1  christos   else if (elf_section_data (isec)->relocs != internal_relocs)
   7108  1.1  christos     free (internal_relocs);
   7109  1.1  christos 
   7110  1.1  christos   *again = changes != 0;
   7111  1.1  christos   if (!*again && link_info->relocatable)
   7112  1.1  christos     {
   7113  1.1  christos       /* Convert the internal relax relocs to external form.  */
   7114  1.1  christos       for (irel = internal_relocs; irel < irelend; irel++)
   7115  1.1  christos 	if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX)
   7116  1.1  christos 	  {
   7117  1.1  christos 	    unsigned long r_symndx = ELF32_R_SYM (irel->r_info);
   7118  1.1  christos 
   7119  1.1  christos 	    /* Rewrite the reloc and convert one of the trailing nop
   7120  1.1  christos 	       relocs to describe this relocation.  */
   7121  1.1  christos 	    BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE);
   7122  1.1  christos 	    /* The relocs are at the bottom 2 bytes */
   7123  1.1  christos 	    irel[0].r_offset += 2;
   7124  1.1  christos 	    memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel));
   7125  1.1  christos 	    irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
   7126  1.1  christos 	    irel[1].r_offset += 4;
   7127  1.1  christos 	    irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
   7128  1.1  christos 	    irel++;
   7129  1.1  christos 	  }
   7130  1.1  christos     }
   7131  1.1  christos 
   7132  1.1  christos   return TRUE;
   7133  1.1  christos 
   7134  1.1  christos  error_return:
   7135  1.1  christos   if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
   7136  1.1  christos     free (isymbuf);
   7137  1.1  christos   if (contents != NULL
   7138  1.1  christos       && elf_section_data (isec)->this_hdr.contents != contents)
   7139  1.1  christos     free (contents);
   7140  1.1  christos   if (internal_relocs != NULL
   7141  1.1  christos       && elf_section_data (isec)->relocs != internal_relocs)
   7142  1.1  christos     free (internal_relocs);
   7143  1.1  christos   return FALSE;
   7144  1.1  christos }
   7145  1.1  christos 
   7146  1.1  christos /* What to do when ld finds relocations against symbols defined in
   7148  1.1  christos    discarded sections.  */
   7149  1.1  christos 
   7150  1.1  christos static unsigned int
   7151  1.1  christos ppc_elf_action_discarded (asection *sec)
   7152  1.1  christos {
   7153  1.1  christos   if (strcmp (".fixup", sec->name) == 0)
   7154  1.1  christos     return 0;
   7155  1.1  christos 
   7156  1.1  christos   if (strcmp (".got2", sec->name) == 0)
   7157  1.1  christos     return 0;
   7158  1.1  christos 
   7159  1.1  christos   return _bfd_elf_default_action_discarded (sec);
   7160  1.1  christos }
   7161  1.1  christos 
   7162  1.1  christos /* Fill in the address for a pointer generated in a linker section.  */
   7164  1.1  christos 
   7165  1.1  christos static bfd_vma
   7166  1.1  christos elf_finish_pointer_linker_section (bfd *input_bfd,
   7167  1.1  christos 				   elf_linker_section_t *lsect,
   7168  1.1  christos 				   struct elf_link_hash_entry *h,
   7169  1.1  christos 				   bfd_vma relocation,
   7170  1.1  christos 				   const Elf_Internal_Rela *rel)
   7171  1.1  christos {
   7172  1.1  christos   elf_linker_section_pointers_t *linker_section_ptr;
   7173  1.1  christos 
   7174  1.1  christos   BFD_ASSERT (lsect != NULL);
   7175  1.1  christos 
   7176  1.1  christos   if (h != NULL)
   7177  1.1  christos     {
   7178  1.1  christos       /* Handle global symbol.  */
   7179  1.1  christos       struct ppc_elf_link_hash_entry *eh;
   7180  1.1  christos 
   7181  1.1  christos       eh = (struct ppc_elf_link_hash_entry *) h;
   7182  1.1  christos       BFD_ASSERT (eh->elf.def_regular);
   7183  1.1  christos       linker_section_ptr = eh->linker_section_pointer;
   7184  1.1  christos     }
   7185  1.1  christos   else
   7186  1.1  christos     {
   7187  1.1  christos       /* Handle local symbol.  */
   7188  1.1  christos       unsigned long r_symndx = ELF32_R_SYM (rel->r_info);
   7189  1.1  christos 
   7190  1.1  christos       BFD_ASSERT (is_ppc_elf (input_bfd));
   7191  1.1  christos       BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
   7192  1.1  christos       linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx];
   7193  1.1  christos     }
   7194  1.1  christos 
   7195  1.1  christos   linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr,
   7196  1.1  christos 							rel->r_addend,
   7197  1.1  christos 							lsect);
   7198  1.1  christos   BFD_ASSERT (linker_section_ptr != NULL);
   7199  1.1  christos 
   7200  1.1  christos   /* Offset will always be a multiple of four, so use the bottom bit
   7201  1.1  christos      as a "written" flag.  */
   7202  1.1  christos   if ((linker_section_ptr->offset & 1) == 0)
   7203  1.1  christos     {
   7204  1.1  christos       bfd_put_32 (lsect->section->owner,
   7205  1.1  christos 		  relocation + linker_section_ptr->addend,
   7206  1.1  christos 		  lsect->section->contents + linker_section_ptr->offset);
   7207  1.1  christos       linker_section_ptr->offset += 1;
   7208  1.1  christos     }
   7209  1.1  christos 
   7210  1.1  christos   relocation = (lsect->section->output_section->vma
   7211  1.1  christos 		+ lsect->section->output_offset
   7212  1.1  christos 		+ linker_section_ptr->offset - 1
   7213  1.1  christos 		- SYM_VAL (lsect->sym));
   7214  1.1  christos 
   7215  1.1  christos #ifdef DEBUG
   7216  1.1  christos   fprintf (stderr,
   7217  1.1  christos 	   "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
   7218  1.1  christos 	   lsect->name, (long) relocation, (long) relocation);
   7219  1.1  christos #endif
   7220  1.1  christos 
   7221  1.1  christos   return relocation;
   7222  1.1  christos }
   7223  1.1  christos 
   7224  1.1  christos #define PPC_LO(v) ((v) & 0xffff)
   7225  1.1  christos #define PPC_HI(v) (((v) >> 16) & 0xffff)
   7226  1.1  christos #define PPC_HA(v) PPC_HI ((v) + 0x8000)
   7227  1.1  christos 
   7228  1.1  christos static void
   7229  1.1  christos write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p,
   7230  1.1  christos 		  struct bfd_link_info *info)
   7231  1.1  christos {
   7232  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   7233  1.1  christos   bfd *output_bfd = info->output_bfd;
   7234  1.1  christos   bfd_vma plt;
   7235  1.1  christos 
   7236  1.1  christos   plt = ((ent->plt.offset & ~1)
   7237  1.1  christos 	 + plt_sec->output_section->vma
   7238  1.1  christos 	 + plt_sec->output_offset);
   7239  1.1  christos 
   7240  1.1  christos   if (info->shared)
   7241  1.1  christos     {
   7242  1.1  christos       bfd_vma got = 0;
   7243  1.1  christos 
   7244  1.1  christos       if (ent->addend >= 32768)
   7245  1.1  christos 	got = (ent->addend
   7246  1.1  christos 	       + ent->sec->output_section->vma
   7247  1.1  christos 	       + ent->sec->output_offset);
   7248  1.1  christos       else if (htab->elf.hgot != NULL)
   7249  1.1  christos 	got = SYM_VAL (htab->elf.hgot);
   7250  1.1  christos 
   7251  1.1  christos       plt -= got;
   7252  1.1  christos 
   7253  1.1  christos       if (plt + 0x8000 < 0x10000)
   7254  1.1  christos 	{
   7255  1.1  christos 	  bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p);
   7256  1.1  christos 	  p += 4;
   7257  1.1  christos 	  bfd_put_32 (output_bfd, MTCTR_11, p);
   7258  1.1  christos 	  p += 4;
   7259  1.1  christos 	  bfd_put_32 (output_bfd, BCTR, p);
   7260  1.1  christos 	  p += 4;
   7261  1.1  christos 	  bfd_put_32 (output_bfd, NOP, p);
   7262  1.1  christos 	  p += 4;
   7263  1.1  christos 	}
   7264  1.1  christos       else
   7265  1.1  christos 	{
   7266  1.1  christos 	  bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p);
   7267  1.1  christos 	  p += 4;
   7268  1.1  christos 	  bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7269  1.1  christos 	  p += 4;
   7270  1.1  christos 	  bfd_put_32 (output_bfd, MTCTR_11, p);
   7271  1.1  christos 	  p += 4;
   7272  1.1  christos 	  bfd_put_32 (output_bfd, BCTR, p);
   7273  1.1  christos 	  p += 4;
   7274  1.1  christos 	}
   7275  1.1  christos     }
   7276  1.1  christos   else
   7277  1.1  christos     {
   7278  1.1  christos       bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p);
   7279  1.1  christos       p += 4;
   7280  1.1  christos       bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p);
   7281  1.1  christos       p += 4;
   7282  1.1  christos       bfd_put_32 (output_bfd, MTCTR_11, p);
   7283  1.1  christos       p += 4;
   7284  1.1  christos       bfd_put_32 (output_bfd, BCTR, p);
   7285  1.1  christos       p += 4;
   7286  1.1  christos     }
   7287  1.1  christos }
   7288  1.1  christos 
   7289  1.1  christos /* Return true if symbol is defined statically.  */
   7290  1.1  christos 
   7291  1.1  christos static bfd_boolean
   7292  1.1  christos is_static_defined (struct elf_link_hash_entry *h)
   7293  1.1  christos {
   7294  1.1  christos   return ((h->root.type == bfd_link_hash_defined
   7295  1.1  christos 	   || h->root.type == bfd_link_hash_defweak)
   7296  1.1  christos 	  && h->root.u.def.section != NULL
   7297  1.1  christos 	  && h->root.u.def.section->output_section != NULL);
   7298  1.1  christos }
   7299  1.1  christos 
   7300  1.1  christos /* If INSN is an opcode that may be used with an @tls operand, return
   7301  1.1  christos    the transformed insn for TLS optimisation, otherwise return 0.  If
   7302  1.1  christos    REG is non-zero only match an insn with RB or RA equal to REG.  */
   7303  1.1  christos 
   7304  1.1  christos unsigned int
   7305  1.1  christos _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg)
   7306  1.1  christos {
   7307  1.1  christos   unsigned int rtra;
   7308  1.1  christos 
   7309  1.1  christos   if ((insn & (0x3f << 26)) != 31 << 26)
   7310  1.1  christos     return 0;
   7311  1.1  christos 
   7312  1.1  christos   if (reg == 0 || ((insn >> 11) & 0x1f) == reg)
   7313  1.1  christos     rtra = insn & ((1 << 26) - (1 << 16));
   7314  1.1  christos   else if (((insn >> 16) & 0x1f) == reg)
   7315  1.1  christos     rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5);
   7316  1.1  christos   else
   7317  1.1  christos     return 0;
   7318  1.1  christos 
   7319  1.1  christos   if ((insn & (0x3ff << 1)) == 266 << 1)
   7320  1.1  christos     /* add -> addi.  */
   7321  1.1  christos     insn = 14 << 26;
   7322  1.1  christos   else if ((insn & (0x1f << 1)) == 23 << 1
   7323  1.1  christos 	   && ((insn & (0x1f << 6)) < 14 << 6
   7324  1.1  christos 	       || ((insn & (0x1f << 6)) >= 16 << 6
   7325  1.1  christos 		   && (insn & (0x1f << 6)) < 24 << 6)))
   7326  1.1  christos     /* load and store indexed -> dform.  */
   7327  1.1  christos     insn = (32 | ((insn >> 6) & 0x1f)) << 26;
   7328  1.1  christos   else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1)
   7329  1.1  christos     /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu.  */
   7330  1.1  christos     insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1);
   7331  1.1  christos   else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1)
   7332  1.1  christos     /* lwax -> lwa.  */
   7333  1.1  christos     insn = (58 << 26) | 2;
   7334  1.1  christos   else
   7335  1.1  christos     return 0;
   7336  1.1  christos   insn |= rtra;
   7337  1.1  christos   return insn;
   7338  1.1  christos }
   7339  1.1  christos 
   7340  1.1  christos /* If INSN is an opcode that may be used with an @tprel operand, return
   7341  1.1  christos    the transformed insn for an undefined weak symbol, ie. with the
   7342  1.1  christos    thread pointer REG operand removed.  Otherwise return 0.  */
   7343  1.1  christos 
   7344  1.1  christos unsigned int
   7345  1.1  christos _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg)
   7346  1.1  christos {
   7347  1.1  christos   if ((insn & (0x1f << 16)) == reg << 16
   7348  1.1  christos       && ((insn & (0x3f << 26)) == 14u << 26 /* addi */
   7349  1.1  christos 	  || (insn & (0x3f << 26)) == 15u << 26 /* addis */
   7350  1.1  christos 	  || (insn & (0x3f << 26)) == 32u << 26 /* lwz */
   7351  1.1  christos 	  || (insn & (0x3f << 26)) == 34u << 26 /* lbz */
   7352  1.1  christos 	  || (insn & (0x3f << 26)) == 36u << 26 /* stw */
   7353  1.1  christos 	  || (insn & (0x3f << 26)) == 38u << 26 /* stb */
   7354  1.1  christos 	  || (insn & (0x3f << 26)) == 40u << 26 /* lhz */
   7355  1.1  christos 	  || (insn & (0x3f << 26)) == 42u << 26 /* lha */
   7356  1.1  christos 	  || (insn & (0x3f << 26)) == 44u << 26 /* sth */
   7357  1.1  christos 	  || (insn & (0x3f << 26)) == 46u << 26 /* lmw */
   7358  1.1  christos 	  || (insn & (0x3f << 26)) == 47u << 26 /* stmw */
   7359  1.1  christos 	  || (insn & (0x3f << 26)) == 48u << 26 /* lfs */
   7360  1.1  christos 	  || (insn & (0x3f << 26)) == 50u << 26 /* lfd */
   7361  1.1  christos 	  || (insn & (0x3f << 26)) == 52u << 26 /* stfs */
   7362  1.1  christos 	  || (insn & (0x3f << 26)) == 54u << 26 /* stfd */
   7363  1.1  christos 	  || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */
   7364  1.1  christos 	      && (insn & 3) != 1)
   7365  1.1  christos 	  || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */
   7366  1.1  christos 	      && ((insn & 3) == 0 || (insn & 3) == 3))))
   7367  1.1  christos     {
   7368  1.1  christos       insn &= ~(0x1f << 16);
   7369  1.1  christos     }
   7370  1.1  christos   else if ((insn & (0x1f << 21)) == reg << 21
   7371  1.1  christos 	   && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */
   7372  1.1  christos 	       || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */
   7373  1.1  christos 	       || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */))
   7374  1.1  christos     {
   7375  1.1  christos       insn &= ~(0x1f << 21);
   7376  1.1  christos       insn |= (insn & (0x1f << 16)) << 5;
   7377  1.1  christos       if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */)
   7378  1.1  christos 	insn -= 2 >> 26;  /* convert to ori,oris */
   7379  1.1  christos     }
   7380  1.1  christos   else
   7381  1.1  christos     insn = 0;
   7382  1.1  christos   return insn;
   7383  1.1  christos }
   7384  1.1  christos 
   7385  1.1  christos static bfd_boolean
   7386  1.1  christos is_insn_ds_form (unsigned int insn)
   7387  1.1  christos {
   7388  1.1  christos   return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
   7389  1.1  christos 	  || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
   7390  1.1  christos 	  || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
   7391  1.1  christos 	  || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */);
   7392  1.1  christos }
   7393  1.1  christos 
   7394  1.1  christos static bfd_boolean
   7395  1.1  christos is_insn_dq_form (unsigned int insn)
   7396  1.1  christos {
   7397  1.1  christos   return (insn & (0x3f << 26)) == 56u << 26; /* lq */
   7398  1.1  christos }
   7399  1.1  christos 
   7400  1.1  christos /* The RELOCATE_SECTION function is called by the ELF backend linker
   7401  1.1  christos    to handle the relocations for a section.
   7402  1.1  christos 
   7403  1.1  christos    The relocs are always passed as Rela structures; if the section
   7404  1.1  christos    actually uses Rel structures, the r_addend field will always be
   7405  1.1  christos    zero.
   7406  1.1  christos 
   7407  1.1  christos    This function is responsible for adjust the section contents as
   7408  1.1  christos    necessary, and (if using Rela relocs and generating a
   7409  1.1  christos    relocatable output file) adjusting the reloc addend as
   7410  1.1  christos    necessary.
   7411  1.1  christos 
   7412  1.1  christos    This function does not have to worry about setting the reloc
   7413  1.1  christos    address or the reloc symbol index.
   7414  1.1  christos 
   7415  1.1  christos    LOCAL_SYMS is a pointer to the swapped in local symbols.
   7416  1.1  christos 
   7417  1.1  christos    LOCAL_SECTIONS is an array giving the section in the input file
   7418  1.1  christos    corresponding to the st_shndx field of each local symbol.
   7419  1.1  christos 
   7420  1.1  christos    The global hash table entry for the global symbols can be found
   7421  1.1  christos    via elf_sym_hashes (input_bfd).
   7422  1.1  christos 
   7423  1.1  christos    When generating relocatable output, this function must handle
   7424  1.1  christos    STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
   7425  1.1  christos    going to be the section symbol corresponding to the output
   7426  1.1  christos    section, which means that the addend must be adjusted
   7427  1.1  christos    accordingly.  */
   7428  1.1  christos 
   7429  1.1  christos static bfd_boolean
   7430  1.1  christos ppc_elf_relocate_section (bfd *output_bfd,
   7431  1.1  christos 			  struct bfd_link_info *info,
   7432  1.1  christos 			  bfd *input_bfd,
   7433  1.1  christos 			  asection *input_section,
   7434  1.1  christos 			  bfd_byte *contents,
   7435  1.1  christos 			  Elf_Internal_Rela *relocs,
   7436  1.1  christos 			  Elf_Internal_Sym *local_syms,
   7437  1.1  christos 			  asection **local_sections)
   7438  1.1  christos {
   7439  1.1  christos   Elf_Internal_Shdr *symtab_hdr;
   7440  1.1  christos   struct elf_link_hash_entry **sym_hashes;
   7441  1.1  christos   struct ppc_elf_link_hash_table *htab;
   7442  1.1  christos   Elf_Internal_Rela *rel;
   7443  1.1  christos   Elf_Internal_Rela *relend;
   7444  1.1  christos   Elf_Internal_Rela outrel;
   7445  1.1  christos   asection *got2;
   7446  1.1  christos   bfd_vma *local_got_offsets;
   7447  1.1  christos   bfd_boolean ret = TRUE;
   7448  1.1  christos   bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0);
   7449  1.1  christos   bfd_boolean is_vxworks_tls;
   7450  1.1  christos 
   7451  1.1  christos #ifdef DEBUG
   7452  1.1  christos   _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, "
   7453  1.1  christos 		      "%ld relocations%s",
   7454  1.1  christos 		      input_bfd, input_section,
   7455  1.1  christos 		      (long) input_section->reloc_count,
   7456  1.1  christos 		      (info->relocatable) ? " (relocatable)" : "");
   7457  1.1  christos #endif
   7458  1.1  christos 
   7459  1.1  christos   got2 = bfd_get_section_by_name (input_bfd, ".got2");
   7460  1.1  christos 
   7461  1.1  christos   /* Initialize howto table if not already done.  */
   7462  1.1  christos   if (!ppc_elf_howto_table[R_PPC_ADDR32])
   7463  1.1  christos     ppc_elf_howto_init ();
   7464  1.1  christos 
   7465  1.1  christos   htab = ppc_elf_hash_table (info);
   7466  1.1  christos   local_got_offsets = elf_local_got_offsets (input_bfd);
   7467  1.1  christos   symtab_hdr = &elf_symtab_hdr (input_bfd);
   7468  1.1  christos   sym_hashes = elf_sym_hashes (input_bfd);
   7469  1.1  christos   /* We have to handle relocations in vxworks .tls_vars sections
   7470  1.1  christos      specially, because the dynamic loader is 'weird'.  */
   7471  1.1  christos   is_vxworks_tls = (htab->is_vxworks && info->shared
   7472  1.1  christos 		    && !strcmp (input_section->output_section->name,
   7473  1.1  christos 				".tls_vars"));
   7474  1.1  christos   rel = relocs;
   7475  1.1  christos   relend = relocs + input_section->reloc_count;
   7476  1.1  christos   for (; rel < relend; rel++)
   7477  1.1  christos     {
   7478  1.1  christos       enum elf_ppc_reloc_type r_type;
   7479  1.1  christos       bfd_vma addend;
   7480  1.1  christos       bfd_reloc_status_type r;
   7481  1.1  christos       Elf_Internal_Sym *sym;
   7482  1.1  christos       asection *sec;
   7483  1.1  christos       struct elf_link_hash_entry *h;
   7484  1.1  christos       const char *sym_name;
   7485  1.1  christos       reloc_howto_type *howto;
   7486  1.1  christos       unsigned long r_symndx;
   7487  1.1  christos       bfd_vma relocation;
   7488  1.1  christos       bfd_vma branch_bit, from;
   7489  1.1  christos       bfd_boolean unresolved_reloc;
   7490  1.1  christos       bfd_boolean warned;
   7491  1.1  christos       unsigned int tls_type, tls_mask, tls_gd;
   7492  1.1  christos       struct plt_entry **ifunc;
   7493  1.1  christos 
   7494  1.1  christos       r_type = ELF32_R_TYPE (rel->r_info);
   7495  1.1  christos       sym = NULL;
   7496  1.1  christos       sec = NULL;
   7497  1.1  christos       h = NULL;
   7498  1.1  christos       unresolved_reloc = FALSE;
   7499  1.1  christos       warned = FALSE;
   7500  1.1  christos       r_symndx = ELF32_R_SYM (rel->r_info);
   7501  1.1  christos 
   7502  1.1  christos       if (r_symndx < symtab_hdr->sh_info)
   7503  1.1  christos 	{
   7504  1.1  christos 	  sym = local_syms + r_symndx;
   7505  1.1  christos 	  sec = local_sections[r_symndx];
   7506  1.1  christos 	  sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec);
   7507  1.1  christos 
   7508  1.1  christos 	  relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
   7509  1.1  christos 	}
   7510  1.1  christos       else
   7511  1.1  christos 	{
   7512  1.1  christos 	  bfd_boolean ignored;
   7513  1.1  christos 
   7514  1.1  christos 	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
   7515  1.1  christos 				   r_symndx, symtab_hdr, sym_hashes,
   7516  1.1  christos 				   h, sec, relocation,
   7517  1.1  christos 				   unresolved_reloc, warned, ignored);
   7518  1.1  christos 
   7519  1.1  christos 	  sym_name = h->root.root.string;
   7520  1.1  christos 	}
   7521  1.1  christos 
   7522  1.1  christos       if (sec != NULL && discarded_section (sec))
   7523  1.1  christos 	{
   7524  1.1  christos 	  /* For relocs against symbols from removed linkonce sections,
   7525  1.1  christos 	     or sections discarded by a linker script, we just want the
   7526  1.1  christos 	     section contents zeroed.  Avoid any special processing.  */
   7527  1.1  christos 	  howto = NULL;
   7528  1.1  christos 	  if (r_type < R_PPC_max)
   7529  1.1  christos 	    howto = ppc_elf_howto_table[r_type];
   7530  1.1  christos 	  RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
   7531  1.1  christos 					   rel, 1, relend, howto, 0, contents);
   7532  1.1  christos 	}
   7533  1.1  christos 
   7534  1.1  christos       if (info->relocatable)
   7535  1.1  christos 	{
   7536  1.1  christos 	  if (got2 != NULL
   7537  1.1  christos 	      && r_type == R_PPC_PLTREL24
   7538  1.1  christos 	      && rel->r_addend != 0)
   7539  1.1  christos 	    {
   7540  1.1  christos 	      /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   7541  1.1  christos 		 addend specifies the GOT pointer offset within .got2.  */
   7542  1.1  christos 	      rel->r_addend += got2->output_offset;
   7543  1.1  christos 	    }
   7544  1.1  christos 	  continue;
   7545  1.1  christos 	}
   7546  1.1  christos 
   7547  1.1  christos       /* TLS optimizations.  Replace instruction sequences and relocs
   7548  1.1  christos 	 based on information we collected in tls_optimize.  We edit
   7549  1.1  christos 	 RELOCS so that --emit-relocs will output something sensible
   7550  1.1  christos 	 for the final instruction stream.  */
   7551  1.1  christos       tls_mask = 0;
   7552  1.1  christos       tls_gd = 0;
   7553  1.1  christos       if (h != NULL)
   7554  1.1  christos 	tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask;
   7555  1.1  christos       else if (local_got_offsets != NULL)
   7556  1.1  christos 	{
   7557  1.1  christos 	  struct plt_entry **local_plt;
   7558  1.1  christos 	  char *lgot_masks;
   7559  1.1  christos 	  local_plt
   7560  1.1  christos 	    = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info);
   7561  1.1  christos 	  lgot_masks = (char *) (local_plt + symtab_hdr->sh_info);
   7562  1.1  christos 	  tls_mask = lgot_masks[r_symndx];
   7563  1.1  christos 	}
   7564  1.1  christos 
   7565  1.1  christos       /* Ensure reloc mapping code below stays sane.  */
   7566  1.1  christos       if ((R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TLSGD16 & 3)
   7567  1.1  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3)
   7568  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3)
   7569  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3)
   7570  1.1  christos 	  || (R_PPC_GOT_TLSLD16 & 3)    != (R_PPC_GOT_TPREL16 & 3)
   7571  1.1  christos 	  || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3)
   7572  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3)
   7573  1.1  christos 	  || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3))
   7574  1.1  christos 	abort ();
   7575  1.1  christos       switch (r_type)
   7576  1.1  christos 	{
   7577  1.1  christos 	default:
   7578  1.1  christos 	  break;
   7579  1.1  christos 
   7580  1.1  christos 	case R_PPC_GOT_TPREL16:
   7581  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   7582  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   7583  1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   7584  1.1  christos 	    {
   7585  1.1  christos 	      bfd_vma insn;
   7586  1.1  christos 
   7587  1.1  christos 	      insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
   7588  1.1  christos 	      insn &= 31 << 21;
   7589  1.1  christos 	      insn |= 0x3c020000;	/* addis 0,2,0 */
   7590  1.1  christos 	      bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset);
   7591  1.1  christos 	      r_type = R_PPC_TPREL16_HA;
   7592  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7593  1.1  christos 	    }
   7594  1.1  christos 	  break;
   7595  1.1  christos 
   7596  1.1  christos 	case R_PPC_TLS:
   7597  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0
   7598  1.1  christos 	      && (tls_mask & TLS_TPREL) == 0)
   7599  1.1  christos 	    {
   7600  1.1  christos 	      bfd_vma insn;
   7601  1.1  christos 
   7602  1.1  christos 	      insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
   7603  1.1  christos 	      insn = _bfd_elf_ppc_at_tls_transform (insn, 2);
   7604  1.1  christos 	      if (insn == 0)
   7605  1.1  christos 		abort ();
   7606  1.1  christos 	      bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   7607  1.1  christos 	      r_type = R_PPC_TPREL16_LO;
   7608  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7609  1.1  christos 
   7610  1.1  christos 	      /* Was PPC_TLS which sits on insn boundary, now
   7611  1.1  christos 		 PPC_TPREL16_LO which is at low-order half-word.  */
   7612  1.1  christos 	      rel->r_offset += d_offset;
   7613  1.1  christos 	    }
   7614  1.1  christos 	  break;
   7615  1.1  christos 
   7616  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   7617  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   7618  1.1  christos 	  tls_gd = TLS_TPRELGD;
   7619  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   7620  1.1  christos 	    goto tls_gdld_hi;
   7621  1.1  christos 	  break;
   7622  1.1  christos 
   7623  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   7624  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   7625  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   7626  1.1  christos 	    {
   7627  1.1  christos 	    tls_gdld_hi:
   7628  1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   7629  1.1  christos 		r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   7630  1.1  christos 			  + R_PPC_GOT_TPREL16);
   7631  1.1  christos 	      else
   7632  1.1  christos 		{
   7633  1.1  christos 		  bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
   7634  1.1  christos 		  rel->r_offset -= d_offset;
   7635  1.1  christos 		  r_type = R_PPC_NONE;
   7636  1.1  christos 		}
   7637  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7638  1.1  christos 	    }
   7639  1.1  christos 	  break;
   7640  1.1  christos 
   7641  1.1  christos 	case R_PPC_GOT_TLSGD16:
   7642  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   7643  1.1  christos 	  tls_gd = TLS_TPRELGD;
   7644  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   7645  1.1  christos 	    goto tls_ldgd_opt;
   7646  1.1  christos 	  break;
   7647  1.1  christos 
   7648  1.1  christos 	case R_PPC_GOT_TLSLD16:
   7649  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   7650  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   7651  1.1  christos 	    {
   7652  1.1  christos 	      unsigned int insn1, insn2;
   7653  1.1  christos 	      bfd_vma offset;
   7654  1.1  christos 
   7655  1.1  christos 	    tls_ldgd_opt:
   7656  1.1  christos 	      offset = (bfd_vma) -1;
   7657  1.1  christos 	      /* If not using the newer R_PPC_TLSGD/LD to mark
   7658  1.1  christos 		 __tls_get_addr calls, we must trust that the call
   7659  1.1  christos 		 stays with its arg setup insns, ie. that the next
   7660  1.1  christos 		 reloc is the __tls_get_addr call associated with
   7661  1.1  christos 		 the current reloc.  Edit both insns.  */
   7662  1.1  christos 	      if (input_section->has_tls_get_addr_call
   7663  1.1  christos 		  && rel + 1 < relend
   7664  1.1  christos 		  && branch_reloc_hash_match (input_bfd, rel + 1,
   7665  1.1  christos 					      htab->tls_get_addr))
   7666  1.1  christos 		offset = rel[1].r_offset;
   7667  1.1  christos 	      if ((tls_mask & tls_gd) != 0)
   7668  1.1  christos 		{
   7669  1.1  christos 		  /* IE */
   7670  1.1  christos 		  insn1 = bfd_get_32 (output_bfd,
   7671  1.1  christos 				      contents + rel->r_offset - d_offset);
   7672  1.1  christos 		  insn1 &= (1 << 26) - 1;
   7673  1.1  christos 		  insn1 |= 32 << 26;	/* lwz */
   7674  1.1  christos 		  if (offset != (bfd_vma) -1)
   7675  1.1  christos 		    {
   7676  1.1  christos 		      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   7677  1.1  christos 		      insn2 = 0x7c631214;	/* add 3,3,2 */
   7678  1.1  christos 		      bfd_put_32 (output_bfd, insn2, contents + offset);
   7679  1.1  christos 		    }
   7680  1.1  christos 		  r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3)
   7681  1.1  christos 			    + R_PPC_GOT_TPREL16);
   7682  1.1  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7683  1.1  christos 		}
   7684  1.1  christos 	      else
   7685  1.1  christos 		{
   7686  1.1  christos 		  /* LE */
   7687  1.1  christos 		  insn1 = 0x3c620000;	/* addis 3,2,0 */
   7688  1.1  christos 		  if (tls_gd == 0)
   7689  1.1  christos 		    {
   7690  1.1  christos 		      /* Was an LD reloc.  */
   7691  1.1  christos 		      for (r_symndx = 0;
   7692  1.1  christos 			   r_symndx < symtab_hdr->sh_info;
   7693  1.1  christos 			   r_symndx++)
   7694  1.1  christos 			if (local_sections[r_symndx] == sec)
   7695  1.1  christos 			  break;
   7696  1.1  christos 		      if (r_symndx >= symtab_hdr->sh_info)
   7697  1.1  christos 			r_symndx = STN_UNDEF;
   7698  1.1  christos 		      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   7699  1.1  christos 		      if (r_symndx != STN_UNDEF)
   7700  1.1  christos 			rel->r_addend -= (local_syms[r_symndx].st_value
   7701  1.1  christos 					  + sec->output_offset
   7702  1.1  christos 					  + sec->output_section->vma);
   7703  1.1  christos 		    }
   7704  1.1  christos 		  r_type = R_PPC_TPREL16_HA;
   7705  1.1  christos 		  rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7706  1.1  christos 		  if (offset != (bfd_vma) -1)
   7707  1.1  christos 		    {
   7708  1.1  christos 		      rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   7709  1.1  christos 		      rel[1].r_offset = offset + d_offset;
   7710  1.1  christos 		      rel[1].r_addend = rel->r_addend;
   7711  1.1  christos 		      insn2 = 0x38630000;	/* addi 3,3,0 */
   7712  1.1  christos 		      bfd_put_32 (output_bfd, insn2, contents + offset);
   7713  1.1  christos 		    }
   7714  1.1  christos 		}
   7715  1.1  christos 	      bfd_put_32 (output_bfd, insn1,
   7716  1.1  christos 			  contents + rel->r_offset - d_offset);
   7717  1.1  christos 	      if (tls_gd == 0)
   7718  1.1  christos 		{
   7719  1.1  christos 		  /* We changed the symbol on an LD reloc.  Start over
   7720  1.1  christos 		     in order to get h, sym, sec etc. right.  */
   7721  1.1  christos 		  rel--;
   7722  1.1  christos 		  continue;
   7723  1.1  christos 		}
   7724  1.1  christos 	    }
   7725  1.1  christos 	  break;
   7726  1.1  christos 
   7727  1.1  christos 	case R_PPC_TLSGD:
   7728  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0)
   7729  1.1  christos 	    {
   7730  1.1  christos 	      unsigned int insn2;
   7731  1.1  christos 	      bfd_vma offset = rel->r_offset;
   7732  1.1  christos 
   7733  1.1  christos 	      if ((tls_mask & TLS_TPRELGD) != 0)
   7734  1.1  christos 		{
   7735  1.1  christos 		  /* IE */
   7736  1.1  christos 		  r_type = R_PPC_NONE;
   7737  1.1  christos 		  insn2 = 0x7c631214;	/* add 3,3,2 */
   7738  1.1  christos 		}
   7739  1.1  christos 	      else
   7740  1.1  christos 		{
   7741  1.1  christos 		  /* LE */
   7742  1.1  christos 		  r_type = R_PPC_TPREL16_LO;
   7743  1.1  christos 		  rel->r_offset += d_offset;
   7744  1.1  christos 		  insn2 = 0x38630000;	/* addi 3,3,0 */
   7745  1.1  christos 		}
   7746  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, r_type);
   7747  1.1  christos 	      bfd_put_32 (output_bfd, insn2, contents + offset);
   7748  1.1  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   7749  1.1  christos 	      BFD_ASSERT (offset == rel[1].r_offset);
   7750  1.1  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   7751  1.1  christos 	    }
   7752  1.1  christos 	  break;
   7753  1.1  christos 
   7754  1.1  christos 	case R_PPC_TLSLD:
   7755  1.1  christos 	  if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0)
   7756  1.1  christos 	    {
   7757  1.1  christos 	      unsigned int insn2;
   7758  1.1  christos 
   7759  1.1  christos 	      for (r_symndx = 0;
   7760  1.1  christos 		   r_symndx < symtab_hdr->sh_info;
   7761  1.1  christos 		   r_symndx++)
   7762  1.1  christos 		if (local_sections[r_symndx] == sec)
   7763  1.1  christos 		  break;
   7764  1.1  christos 	      if (r_symndx >= symtab_hdr->sh_info)
   7765  1.1  christos 		r_symndx = STN_UNDEF;
   7766  1.1  christos 	      rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
   7767  1.1  christos 	      if (r_symndx != STN_UNDEF)
   7768  1.1  christos 		rel->r_addend -= (local_syms[r_symndx].st_value
   7769  1.1  christos 				  + sec->output_offset
   7770  1.1  christos 				  + sec->output_section->vma);
   7771  1.1  christos 
   7772  1.1  christos 	      rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO);
   7773  1.1  christos 	      rel->r_offset += d_offset;
   7774  1.1  christos 	      insn2 = 0x38630000;	/* addi 3,3,0 */
   7775  1.1  christos 	      bfd_put_32 (output_bfd, insn2,
   7776  1.1  christos 			  contents + rel->r_offset - d_offset);
   7777  1.1  christos 	      /* Zap the reloc on the _tls_get_addr call too.  */
   7778  1.1  christos 	      BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset);
   7779  1.1  christos 	      rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE);
   7780  1.1  christos 	      rel--;
   7781  1.1  christos 	      continue;
   7782  1.1  christos 	    }
   7783  1.1  christos 	  break;
   7784  1.1  christos 	}
   7785  1.1  christos 
   7786  1.1  christos       /* Handle other relocations that tweak non-addend part of insn.  */
   7787  1.1  christos       branch_bit = 0;
   7788  1.1  christos       switch (r_type)
   7789  1.1  christos 	{
   7790  1.1  christos 	default:
   7791  1.1  christos 	  break;
   7792  1.1  christos 
   7793  1.1  christos 	  /* Branch taken prediction relocations.  */
   7794  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   7795  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   7796  1.1  christos 	  branch_bit = BRANCH_PREDICT_BIT;
   7797  1.1  christos 	  /* Fall thru */
   7798  1.1  christos 
   7799  1.1  christos 	  /* Branch not taken prediction relocations.  */
   7800  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   7801  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   7802  1.1  christos 	  {
   7803  1.1  christos 	    bfd_vma insn;
   7804  1.1  christos 
   7805  1.1  christos 	    insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
   7806  1.1  christos 	    insn &= ~BRANCH_PREDICT_BIT;
   7807  1.1  christos 	    insn |= branch_bit;
   7808  1.1  christos 
   7809  1.1  christos 	    from = (rel->r_offset
   7810  1.1  christos 		    + input_section->output_offset
   7811  1.1  christos 		    + input_section->output_section->vma);
   7812  1.1  christos 
   7813  1.1  christos 	    /* Invert 'y' bit if not the default.  */
   7814  1.1  christos 	    if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
   7815  1.1  christos 	      insn ^= BRANCH_PREDICT_BIT;
   7816  1.1  christos 
   7817  1.1  christos 	    bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   7818  1.1  christos 	    break;
   7819  1.1  christos 	  }
   7820  1.1  christos 	}
   7821  1.1  christos 
   7822  1.1  christos       ifunc = NULL;
   7823  1.1  christos       if (!htab->is_vxworks)
   7824  1.1  christos 	{
   7825  1.1  christos 	  struct plt_entry *ent;
   7826  1.1  christos 
   7827  1.1  christos 	  if (h != NULL)
   7828  1.1  christos 	    {
   7829  1.1  christos 	      if (h->type == STT_GNU_IFUNC)
   7830  1.1  christos 		ifunc = &h->plt.plist;
   7831  1.1  christos 	    }
   7832  1.1  christos 	  else if (local_got_offsets != NULL
   7833  1.1  christos 		   && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
   7834  1.1  christos 	    {
   7835  1.1  christos 	      struct plt_entry **local_plt;
   7836  1.1  christos 
   7837  1.1  christos 	      local_plt = (struct plt_entry **) (local_got_offsets
   7838  1.1  christos 						 + symtab_hdr->sh_info);
   7839  1.1  christos 	      ifunc = local_plt + r_symndx;
   7840  1.1  christos 	    }
   7841  1.1  christos 
   7842  1.1  christos 	  ent = NULL;
   7843  1.1  christos 	  if (ifunc != NULL
   7844  1.1  christos 	      && (!info->shared
   7845  1.1  christos 		  || is_branch_reloc (r_type)))
   7846  1.1  christos 	    {
   7847  1.1  christos 	      addend = 0;
   7848  1.1  christos 	      if (r_type == R_PPC_PLTREL24 && info->shared)
   7849  1.1  christos 		addend = rel->r_addend;
   7850  1.1  christos 	      ent = find_plt_ent (ifunc, got2, addend);
   7851  1.1  christos 	    }
   7852  1.1  christos 	  if (ent != NULL)
   7853  1.1  christos 	    {
   7854  1.1  christos 	      if (h == NULL && (ent->plt.offset & 1) == 0)
   7855  1.1  christos 		{
   7856  1.1  christos 		  Elf_Internal_Rela rela;
   7857  1.1  christos 		  bfd_byte *loc;
   7858  1.1  christos 
   7859  1.1  christos 		  rela.r_offset = (htab->iplt->output_section->vma
   7860  1.1  christos 				   + htab->iplt->output_offset
   7861  1.1  christos 				   + ent->plt.offset);
   7862  1.1  christos 		  rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   7863  1.1  christos 		  rela.r_addend = relocation;
   7864  1.1  christos 		  loc = htab->reliplt->contents;
   7865  1.1  christos 		  loc += (htab->reliplt->reloc_count++
   7866  1.1  christos 			  * sizeof (Elf32_External_Rela));
   7867  1.1  christos 		  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   7868  1.1  christos 
   7869  1.1  christos 		  ent->plt.offset |= 1;
   7870  1.1  christos 		}
   7871  1.1  christos 	      if (h == NULL && (ent->glink_offset & 1) == 0)
   7872  1.1  christos 		{
   7873  1.1  christos 		  unsigned char *p = ((unsigned char *) htab->glink->contents
   7874  1.1  christos 				      + ent->glink_offset);
   7875  1.1  christos 		  write_glink_stub (ent, htab->iplt, p, info);
   7876  1.1  christos 		  ent->glink_offset |= 1;
   7877  1.1  christos 		}
   7878  1.1  christos 
   7879  1.1  christos 	      unresolved_reloc = FALSE;
   7880  1.1  christos 	      if (htab->plt_type == PLT_NEW
   7881  1.1  christos 		  || !htab->elf.dynamic_sections_created
   7882  1.1  christos 		  || h == NULL)
   7883  1.1  christos 		relocation = (htab->glink->output_section->vma
   7884  1.1  christos 			      + htab->glink->output_offset
   7885  1.1  christos 			      + (ent->glink_offset & ~1));
   7886  1.1  christos 	      else
   7887  1.1  christos 		relocation = (htab->plt->output_section->vma
   7888  1.1  christos 			      + htab->plt->output_offset
   7889  1.1  christos 			      + ent->plt.offset);
   7890  1.1  christos 	    }
   7891  1.1  christos 	}
   7892  1.1  christos 
   7893  1.1  christos       addend = rel->r_addend;
   7894  1.1  christos       tls_type = 0;
   7895  1.1  christos       howto = NULL;
   7896  1.1  christos       if (r_type < R_PPC_max)
   7897  1.1  christos 	howto = ppc_elf_howto_table[r_type];
   7898  1.1  christos       switch (r_type)
   7899  1.1  christos 	{
   7900  1.1  christos 	default:
   7901  1.1  christos 	  info->callbacks->einfo
   7902  1.1  christos 	    (_("%P: %B: unknown relocation type %d for symbol %s\n"),
   7903  1.1  christos 	     input_bfd, (int) r_type, sym_name);
   7904  1.1  christos 
   7905  1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   7906  1.1  christos 	  ret = FALSE;
   7907  1.1  christos 	  continue;
   7908  1.1  christos 
   7909  1.1  christos 	case R_PPC_NONE:
   7910  1.1  christos 	case R_PPC_TLS:
   7911  1.1  christos 	case R_PPC_TLSGD:
   7912  1.1  christos 	case R_PPC_TLSLD:
   7913  1.1  christos 	case R_PPC_EMB_MRKREF:
   7914  1.1  christos 	case R_PPC_GNU_VTINHERIT:
   7915  1.1  christos 	case R_PPC_GNU_VTENTRY:
   7916  1.1  christos 	  continue;
   7917  1.1  christos 
   7918  1.1  christos 	  /* GOT16 relocations.  Like an ADDR16 using the symbol's
   7919  1.1  christos 	     address in the GOT as relocation value instead of the
   7920  1.1  christos 	     symbol's value itself.  Also, create a GOT entry for the
   7921  1.1  christos 	     symbol and put the symbol value there.  */
   7922  1.1  christos 	case R_PPC_GOT_TLSGD16:
   7923  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   7924  1.1  christos 	case R_PPC_GOT_TLSGD16_HI:
   7925  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   7926  1.1  christos 	  tls_type = TLS_TLS | TLS_GD;
   7927  1.1  christos 	  goto dogot;
   7928  1.1  christos 
   7929  1.1  christos 	case R_PPC_GOT_TLSLD16:
   7930  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   7931  1.1  christos 	case R_PPC_GOT_TLSLD16_HI:
   7932  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   7933  1.1  christos 	  tls_type = TLS_TLS | TLS_LD;
   7934  1.1  christos 	  goto dogot;
   7935  1.1  christos 
   7936  1.1  christos 	case R_PPC_GOT_TPREL16:
   7937  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   7938  1.1  christos 	case R_PPC_GOT_TPREL16_HI:
   7939  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   7940  1.1  christos 	  tls_type = TLS_TLS | TLS_TPREL;
   7941  1.1  christos 	  goto dogot;
   7942  1.1  christos 
   7943  1.1  christos 	case R_PPC_GOT_DTPREL16:
   7944  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   7945  1.1  christos 	case R_PPC_GOT_DTPREL16_HI:
   7946  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   7947  1.1  christos 	  tls_type = TLS_TLS | TLS_DTPREL;
   7948  1.1  christos 	  goto dogot;
   7949  1.1  christos 
   7950  1.1  christos 	case R_PPC_GOT16:
   7951  1.1  christos 	case R_PPC_GOT16_LO:
   7952  1.1  christos 	case R_PPC_GOT16_HI:
   7953  1.1  christos 	case R_PPC_GOT16_HA:
   7954  1.1  christos 	  tls_mask = 0;
   7955  1.1  christos 	dogot:
   7956  1.1  christos 	  {
   7957  1.1  christos 	    /* Relocation is to the entry for this symbol in the global
   7958  1.1  christos 	       offset table.  */
   7959  1.1  christos 	    bfd_vma off;
   7960  1.1  christos 	    bfd_vma *offp;
   7961  1.1  christos 	    unsigned long indx;
   7962  1.1  christos 
   7963  1.1  christos 	    if (htab->got == NULL)
   7964  1.1  christos 	      abort ();
   7965  1.1  christos 
   7966  1.1  christos 	    indx = 0;
   7967  1.1  christos 	    if (tls_type == (TLS_TLS | TLS_LD)
   7968  1.1  christos 		&& (h == NULL
   7969  1.1  christos 		    || !h->def_dynamic))
   7970  1.1  christos 	      offp = &htab->tlsld_got.offset;
   7971  1.1  christos 	    else if (h != NULL)
   7972  1.1  christos 	      {
   7973  1.1  christos 		bfd_boolean dyn;
   7974  1.1  christos 		dyn = htab->elf.dynamic_sections_created;
   7975  1.1  christos 		if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
   7976  1.1  christos 		    || (info->shared
   7977  1.1  christos 			&& SYMBOL_REFERENCES_LOCAL (info, h)))
   7978  1.1  christos 		  /* This is actually a static link, or it is a
   7979  1.1  christos 		     -Bsymbolic link and the symbol is defined
   7980  1.1  christos 		     locally, or the symbol was forced to be local
   7981  1.1  christos 		     because of a version file.  */
   7982  1.1  christos 		  ;
   7983  1.1  christos 		else
   7984  1.1  christos 		  {
   7985  1.1  christos 		    BFD_ASSERT (h->dynindx != -1);
   7986  1.1  christos 		    indx = h->dynindx;
   7987  1.1  christos 		    unresolved_reloc = FALSE;
   7988  1.1  christos 		  }
   7989  1.1  christos 		offp = &h->got.offset;
   7990  1.1  christos 	      }
   7991  1.1  christos 	    else
   7992  1.1  christos 	      {
   7993  1.1  christos 		if (local_got_offsets == NULL)
   7994  1.1  christos 		  abort ();
   7995  1.1  christos 		offp = &local_got_offsets[r_symndx];
   7996  1.1  christos 	      }
   7997  1.1  christos 
   7998  1.1  christos 	    /* The offset must always be a multiple of 4.  We use the
   7999  1.1  christos 	       least significant bit to record whether we have already
   8000  1.1  christos 	       processed this entry.  */
   8001  1.1  christos 	    off = *offp;
   8002  1.1  christos 	    if ((off & 1) != 0)
   8003  1.1  christos 	      off &= ~1;
   8004  1.1  christos 	    else
   8005  1.1  christos 	      {
   8006  1.1  christos 		unsigned int tls_m = (tls_mask
   8007  1.1  christos 				      & (TLS_LD | TLS_GD | TLS_DTPREL
   8008  1.1  christos 					 | TLS_TPREL | TLS_TPRELGD));
   8009  1.1  christos 
   8010  1.1  christos 		if (offp == &htab->tlsld_got.offset)
   8011  1.1  christos 		  tls_m = TLS_LD;
   8012  1.1  christos 		else if (h == NULL
   8013  1.1  christos 			 || !h->def_dynamic)
   8014  1.1  christos 		  tls_m &= ~TLS_LD;
   8015  1.1  christos 
   8016  1.1  christos 		/* We might have multiple got entries for this sym.
   8017  1.1  christos 		   Initialize them all.  */
   8018  1.1  christos 		do
   8019  1.1  christos 		  {
   8020  1.1  christos 		    int tls_ty = 0;
   8021  1.1  christos 
   8022  1.1  christos 		    if ((tls_m & TLS_LD) != 0)
   8023  1.1  christos 		      {
   8024  1.1  christos 			tls_ty = TLS_TLS | TLS_LD;
   8025  1.1  christos 			tls_m &= ~TLS_LD;
   8026  1.1  christos 		      }
   8027  1.1  christos 		    else if ((tls_m & TLS_GD) != 0)
   8028  1.1  christos 		      {
   8029  1.1  christos 			tls_ty = TLS_TLS | TLS_GD;
   8030  1.1  christos 			tls_m &= ~TLS_GD;
   8031  1.1  christos 		      }
   8032  1.1  christos 		    else if ((tls_m & TLS_DTPREL) != 0)
   8033  1.1  christos 		      {
   8034  1.1  christos 			tls_ty = TLS_TLS | TLS_DTPREL;
   8035  1.1  christos 			tls_m &= ~TLS_DTPREL;
   8036  1.1  christos 		      }
   8037  1.1  christos 		    else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0)
   8038  1.1  christos 		      {
   8039  1.1  christos 			tls_ty = TLS_TLS | TLS_TPREL;
   8040  1.1  christos 			tls_m = 0;
   8041  1.1  christos 		      }
   8042  1.1  christos 
   8043  1.1  christos 		    /* Generate relocs for the dynamic linker.  */
   8044  1.1  christos 		    if ((info->shared || indx != 0)
   8045  1.1  christos 			&& (offp == &htab->tlsld_got.offset
   8046  1.1  christos 			    || h == NULL
   8047  1.1  christos 			    || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
   8048  1.1  christos 			    || h->root.type != bfd_link_hash_undefweak))
   8049  1.1  christos 		      {
   8050  1.1  christos 			asection *rsec = htab->relgot;
   8051  1.1  christos 			bfd_byte * loc;
   8052  1.1  christos 
   8053  1.1  christos 			if (ifunc != NULL)
   8054  1.1  christos 			  rsec = htab->reliplt;
   8055  1.1  christos 			outrel.r_offset = (htab->got->output_section->vma
   8056  1.1  christos 					   + htab->got->output_offset
   8057  1.1  christos 					   + off);
   8058  1.1  christos 			outrel.r_addend = 0;
   8059  1.1  christos 			if (tls_ty & (TLS_LD | TLS_GD))
   8060  1.1  christos 			  {
   8061  1.1  christos 			    outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32);
   8062  1.1  christos 			    if (tls_ty == (TLS_TLS | TLS_GD))
   8063  1.1  christos 			      {
   8064  1.1  christos 				loc = rsec->contents;
   8065  1.1  christos 				loc += (rsec->reloc_count++
   8066  1.1  christos 					* sizeof (Elf32_External_Rela));
   8067  1.1  christos 				bfd_elf32_swap_reloca_out (output_bfd,
   8068  1.1  christos 							   &outrel, loc);
   8069  1.1  christos 				outrel.r_offset += 4;
   8070  1.1  christos 				outrel.r_info
   8071  1.1  christos 				  = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   8072  1.1  christos 			      }
   8073  1.1  christos 			  }
   8074  1.1  christos 			else if (tls_ty == (TLS_TLS | TLS_DTPREL))
   8075  1.1  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32);
   8076  1.1  christos 			else if (tls_ty == (TLS_TLS | TLS_TPREL))
   8077  1.1  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32);
   8078  1.1  christos 			else if (indx != 0)
   8079  1.1  christos 			  outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT);
   8080  1.1  christos 			else if (ifunc != NULL)
   8081  1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8082  1.1  christos 			else
   8083  1.1  christos 			  outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   8084  1.1  christos 			if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD))
   8085  1.1  christos 			  {
   8086  1.1  christos 			    outrel.r_addend += relocation;
   8087  1.1  christos 			    if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL))
   8088  1.1  christos 			      outrel.r_addend -= htab->elf.tls_sec->vma;
   8089  1.1  christos 			  }
   8090  1.1  christos 			loc = rsec->contents;
   8091  1.1  christos 			loc += (rsec->reloc_count++
   8092  1.1  christos 				* sizeof (Elf32_External_Rela));
   8093  1.1  christos 			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   8094  1.1  christos 		      }
   8095  1.1  christos 
   8096  1.1  christos 		    /* Init the .got section contents if we're not
   8097  1.1  christos 		       emitting a reloc.  */
   8098  1.1  christos 		    else
   8099  1.1  christos 		      {
   8100  1.1  christos 			bfd_vma value = relocation;
   8101  1.1  christos 
   8102  1.1  christos 			if (tls_ty == (TLS_TLS | TLS_LD))
   8103  1.1  christos 			  value = 1;
   8104  1.1  christos 			else if (tls_ty != 0)
   8105  1.1  christos 			  {
   8106  1.1  christos 			    value -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8107  1.1  christos 			    if (tls_ty == (TLS_TLS | TLS_TPREL))
   8108  1.1  christos 			      value += DTP_OFFSET - TP_OFFSET;
   8109  1.1  christos 
   8110  1.1  christos 			    if (tls_ty == (TLS_TLS | TLS_GD))
   8111  1.1  christos 			      {
   8112  1.1  christos 				bfd_put_32 (output_bfd, value,
   8113  1.1  christos 					    htab->got->contents + off + 4);
   8114  1.1  christos 				value = 1;
   8115  1.1  christos 			      }
   8116  1.1  christos 			  }
   8117  1.1  christos 			bfd_put_32 (output_bfd, value,
   8118  1.1  christos 				    htab->got->contents + off);
   8119  1.1  christos 		      }
   8120  1.1  christos 
   8121  1.1  christos 		    off += 4;
   8122  1.1  christos 		    if (tls_ty & (TLS_LD | TLS_GD))
   8123  1.1  christos 		      off += 4;
   8124  1.1  christos 		  }
   8125  1.1  christos 		while (tls_m != 0);
   8126  1.1  christos 
   8127  1.1  christos 		off = *offp;
   8128  1.1  christos 		*offp = off | 1;
   8129  1.1  christos 	      }
   8130  1.1  christos 
   8131  1.1  christos 	    if (off >= (bfd_vma) -2)
   8132  1.1  christos 	      abort ();
   8133  1.1  christos 
   8134  1.1  christos 	    if ((tls_type & TLS_TLS) != 0)
   8135  1.1  christos 	      {
   8136  1.1  christos 		if (tls_type != (TLS_TLS | TLS_LD))
   8137  1.1  christos 		  {
   8138  1.1  christos 		    if ((tls_mask & TLS_LD) != 0
   8139  1.1  christos 			&& !(h == NULL
   8140  1.1  christos 			     || !h->def_dynamic))
   8141  1.1  christos 		      off += 8;
   8142  1.1  christos 		    if (tls_type != (TLS_TLS | TLS_GD))
   8143  1.1  christos 		      {
   8144  1.1  christos 			if ((tls_mask & TLS_GD) != 0)
   8145  1.1  christos 			  off += 8;
   8146  1.1  christos 			if (tls_type != (TLS_TLS | TLS_DTPREL))
   8147  1.1  christos 			  {
   8148  1.1  christos 			    if ((tls_mask & TLS_DTPREL) != 0)
   8149  1.1  christos 			      off += 4;
   8150  1.1  christos 			  }
   8151  1.1  christos 		      }
   8152  1.1  christos 		  }
   8153  1.1  christos 	      }
   8154  1.1  christos 
   8155  1.1  christos 	    relocation = (htab->got->output_section->vma
   8156  1.1  christos 			  + htab->got->output_offset
   8157  1.1  christos 			  + off
   8158  1.1  christos 			  - SYM_VAL (htab->elf.hgot));
   8159  1.1  christos 
   8160  1.1  christos 	    /* Addends on got relocations don't make much sense.
   8161  1.1  christos 	       x+off@got is actually x@got+off, and since the got is
   8162  1.1  christos 	       generated by a hash table traversal, the value in the
   8163  1.1  christos 	       got at entry m+n bears little relation to the entry m.  */
   8164  1.1  christos 	    if (addend != 0)
   8165  1.1  christos 	      info->callbacks->einfo
   8166  1.1  christos 		(_("%P: %H: non-zero addend on %s reloc against `%s'\n"),
   8167  1.1  christos 		 input_bfd, input_section, rel->r_offset,
   8168  1.1  christos 		 howto->name,
   8169  1.1  christos 		 sym_name);
   8170  1.1  christos 	  }
   8171  1.1  christos 	break;
   8172  1.1  christos 
   8173  1.1  christos 	/* Relocations that need no special processing.  */
   8174  1.1  christos 	case R_PPC_LOCAL24PC:
   8175  1.1  christos 	  /* It makes no sense to point a local relocation
   8176  1.1  christos 	     at a symbol not in this object.  */
   8177  1.1  christos 	  if (unresolved_reloc)
   8178  1.1  christos 	    {
   8179  1.1  christos 	      if (! (*info->callbacks->undefined_symbol) (info,
   8180  1.1  christos 							  h->root.root.string,
   8181  1.1  christos 							  input_bfd,
   8182  1.1  christos 							  input_section,
   8183  1.1  christos 							  rel->r_offset,
   8184  1.1  christos 							  TRUE))
   8185  1.1  christos 		return FALSE;
   8186  1.1  christos 	      continue;
   8187  1.1  christos 	    }
   8188  1.1  christos 	  break;
   8189  1.1  christos 
   8190  1.1  christos 	case R_PPC_DTPREL16:
   8191  1.1  christos 	case R_PPC_DTPREL16_LO:
   8192  1.1  christos 	case R_PPC_DTPREL16_HI:
   8193  1.1  christos 	case R_PPC_DTPREL16_HA:
   8194  1.1  christos 	  addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8195  1.1  christos 	  break;
   8196  1.1  christos 
   8197  1.1  christos 	  /* Relocations that may need to be propagated if this is a shared
   8198  1.1  christos 	     object.  */
   8199  1.1  christos 	case R_PPC_TPREL16:
   8200  1.1  christos 	case R_PPC_TPREL16_LO:
   8201  1.1  christos 	case R_PPC_TPREL16_HI:
   8202  1.1  christos 	case R_PPC_TPREL16_HA:
   8203  1.1  christos 	  if (h != NULL
   8204  1.1  christos 	      && h->root.type == bfd_link_hash_undefweak
   8205  1.1  christos 	      && h->dynindx == -1)
   8206  1.1  christos 	    {
   8207  1.1  christos 	      /* Make this relocation against an undefined weak symbol
   8208  1.1  christos 		 resolve to zero.  This is really just a tweak, since
   8209  1.1  christos 		 code using weak externs ought to check that they are
   8210  1.1  christos 		 defined before using them.  */
   8211  1.1  christos 	      bfd_byte *p = contents + rel->r_offset - d_offset;
   8212  1.1  christos 	      unsigned int insn = bfd_get_32 (output_bfd, p);
   8213  1.1  christos 	      insn = _bfd_elf_ppc_at_tprel_transform (insn, 2);
   8214  1.1  christos 	      if (insn != 0)
   8215  1.1  christos 		bfd_put_32 (output_bfd, insn, p);
   8216  1.1  christos 	      break;
   8217  1.1  christos 	    }
   8218  1.1  christos 	  addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   8219  1.1  christos 	  /* The TPREL16 relocs shouldn't really be used in shared
   8220  1.1  christos 	     libs as they will result in DT_TEXTREL being set, but
   8221  1.1  christos 	     support them anyway.  */
   8222  1.1  christos 	  goto dodyn;
   8223  1.1  christos 
   8224  1.1  christos 	case R_PPC_TPREL32:
   8225  1.1  christos 	  addend -= htab->elf.tls_sec->vma + TP_OFFSET;
   8226  1.1  christos 	  goto dodyn;
   8227  1.1  christos 
   8228  1.1  christos 	case R_PPC_DTPREL32:
   8229  1.1  christos 	  addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
   8230  1.1  christos 	  goto dodyn;
   8231  1.1  christos 
   8232  1.1  christos 	case R_PPC_DTPMOD32:
   8233  1.1  christos 	  relocation = 1;
   8234  1.1  christos 	  addend = 0;
   8235  1.1  christos 	  goto dodyn;
   8236  1.1  christos 
   8237  1.1  christos 	case R_PPC_REL16:
   8238  1.1  christos 	case R_PPC_REL16_LO:
   8239  1.1  christos 	case R_PPC_REL16_HI:
   8240  1.1  christos 	case R_PPC_REL16_HA:
   8241  1.1  christos 	  break;
   8242  1.1  christos 
   8243  1.1  christos 	case R_PPC_REL32:
   8244  1.1  christos 	  if (h == NULL || h == htab->elf.hgot)
   8245  1.1  christos 	    break;
   8246  1.1  christos 	  /* fall through */
   8247  1.1  christos 
   8248  1.1  christos 	case R_PPC_ADDR32:
   8249  1.1  christos 	case R_PPC_ADDR16:
   8250  1.1  christos 	case R_PPC_ADDR16_LO:
   8251  1.1  christos 	case R_PPC_ADDR16_HI:
   8252  1.1  christos 	case R_PPC_ADDR16_HA:
   8253  1.1  christos 	case R_PPC_UADDR32:
   8254  1.1  christos 	case R_PPC_UADDR16:
   8255  1.1  christos 	  goto dodyn;
   8256  1.1  christos 
   8257  1.1  christos 	case R_PPC_VLE_REL8:
   8258  1.1  christos 	case R_PPC_VLE_REL15:
   8259  1.1  christos 	case R_PPC_VLE_REL24:
   8260  1.1  christos 	case R_PPC_REL24:
   8261  1.1  christos 	case R_PPC_REL14:
   8262  1.1  christos 	case R_PPC_REL14_BRTAKEN:
   8263  1.1  christos 	case R_PPC_REL14_BRNTAKEN:
   8264  1.1  christos 	  /* If these relocations are not to a named symbol, they can be
   8265  1.1  christos 	     handled right here, no need to bother the dynamic linker.  */
   8266  1.1  christos 	  if (SYMBOL_CALLS_LOCAL (info, h)
   8267  1.1  christos 	      || h == htab->elf.hgot)
   8268  1.1  christos 	    break;
   8269  1.1  christos 	  /* fall through */
   8270  1.1  christos 
   8271  1.1  christos 	case R_PPC_ADDR24:
   8272  1.1  christos 	case R_PPC_ADDR14:
   8273  1.1  christos 	case R_PPC_ADDR14_BRTAKEN:
   8274  1.1  christos 	case R_PPC_ADDR14_BRNTAKEN:
   8275  1.1  christos 	  if (h != NULL && !info->shared)
   8276  1.1  christos 	    break;
   8277  1.1  christos 	  /* fall through */
   8278  1.1  christos 
   8279  1.1  christos 	dodyn:
   8280  1.1  christos 	  if ((input_section->flags & SEC_ALLOC) == 0
   8281  1.1  christos 	      || is_vxworks_tls)
   8282  1.1  christos 	    break;
   8283  1.1  christos 
   8284  1.1  christos 	  if ((info->shared
   8285  1.1  christos 	       && !(h != NULL
   8286  1.1  christos 		    && ((h->root.type == bfd_link_hash_undefined
   8287  1.1  christos 			 && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
   8288  1.1  christos 			     || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL))
   8289  1.1  christos 			|| (h->root.type == bfd_link_hash_undefweak
   8290  1.1  christos 			    && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))
   8291  1.1  christos 	       && (must_be_dyn_reloc (info, r_type)
   8292  1.1  christos 		   || !SYMBOL_CALLS_LOCAL (info, h)))
   8293  1.1  christos 	      || (ELIMINATE_COPY_RELOCS
   8294  1.1  christos 		  && !info->shared
   8295  1.1  christos 		  && h != NULL
   8296  1.1  christos 		  && h->dynindx != -1
   8297  1.1  christos 		  && !h->non_got_ref
   8298  1.1  christos 		  && !h->def_regular))
   8299  1.1  christos 	    {
   8300  1.1  christos 	      int skip;
   8301  1.1  christos 	      bfd_byte *loc;
   8302  1.1  christos 	      asection *sreloc;
   8303  1.1  christos #ifdef DEBUG
   8304  1.1  christos 	      fprintf (stderr, "ppc_elf_relocate_section needs to "
   8305  1.1  christos 		       "create relocation for %s\n",
   8306  1.1  christos 		       (h && h->root.root.string
   8307  1.1  christos 			? h->root.root.string : "<unknown>"));
   8308  1.1  christos #endif
   8309  1.1  christos 
   8310  1.1  christos 	      /* When generating a shared object, these relocations
   8311  1.1  christos 		 are copied into the output file to be resolved at run
   8312  1.1  christos 		 time.  */
   8313  1.1  christos 	      sreloc = elf_section_data (input_section)->sreloc;
   8314  1.1  christos 	      if (ifunc)
   8315  1.1  christos 		sreloc = htab->reliplt;
   8316  1.1  christos 	      if (sreloc == NULL)
   8317  1.1  christos 		return FALSE;
   8318  1.1  christos 
   8319  1.1  christos 	      skip = 0;
   8320  1.1  christos 	      outrel.r_offset = _bfd_elf_section_offset (output_bfd, info,
   8321  1.1  christos 							 input_section,
   8322  1.1  christos 							 rel->r_offset);
   8323  1.1  christos 	      if (outrel.r_offset == (bfd_vma) -1
   8324  1.1  christos 		  || outrel.r_offset == (bfd_vma) -2)
   8325  1.1  christos 		skip = (int) outrel.r_offset;
   8326  1.1  christos 	      outrel.r_offset += (input_section->output_section->vma
   8327  1.1  christos 				  + input_section->output_offset);
   8328  1.1  christos 
   8329  1.1  christos 	      if (skip)
   8330  1.1  christos 		memset (&outrel, 0, sizeof outrel);
   8331  1.1  christos 	      else if ((h != NULL
   8332  1.1  christos 			&& (h->root.type == bfd_link_hash_undefined
   8333  1.1  christos 			    || h->root.type == bfd_link_hash_undefweak))
   8334  1.1  christos 		       || !SYMBOL_REFERENCES_LOCAL (info, h))
   8335  1.1  christos 		{
   8336  1.1  christos 		  BFD_ASSERT (h->dynindx != -1);
   8337  1.1  christos 		  unresolved_reloc = FALSE;
   8338  1.1  christos 		  outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
   8339  1.1  christos 		  outrel.r_addend = rel->r_addend;
   8340  1.1  christos 		}
   8341  1.1  christos 	      else
   8342  1.1  christos 		{
   8343  1.1  christos 		  outrel.r_addend = relocation + rel->r_addend;
   8344  1.1  christos 
   8345  1.1  christos 		  if (r_type != R_PPC_ADDR32)
   8346  1.1  christos 		    {
   8347  1.1  christos 		      long indx = 0;
   8348  1.1  christos 
   8349  1.1  christos 		      if (ifunc != NULL)
   8350  1.1  christos 			{
   8351  1.1  christos 			  /* If we get here when building a static
   8352  1.1  christos 			     executable, then the libc startup function
   8353  1.1  christos 			     responsible for applying indirect function
   8354  1.1  christos 			     relocations is going to complain about
   8355  1.1  christos 			     the reloc type.
   8356  1.1  christos 			     If we get here when building a dynamic
   8357  1.1  christos 			     executable, it will be because we have
   8358  1.1  christos 			     a text relocation.  The dynamic loader
   8359  1.1  christos 			     will set the text segment writable and
   8360  1.1  christos 			     non-executable to apply text relocations.
   8361  1.1  christos 			     So we'll segfault when trying to run the
   8362  1.1  christos 			     indirection function to resolve the reloc.  */
   8363  1.1  christos 			  info->callbacks->einfo
   8364  1.1  christos 			    (_("%P: %H: relocation %s for indirect "
   8365  1.1  christos 			       "function %s unsupported\n"),
   8366  1.1  christos 			     input_bfd, input_section, rel->r_offset,
   8367  1.1  christos 			     howto->name,
   8368  1.1  christos 			     sym_name);
   8369  1.1  christos 			  ret = FALSE;
   8370  1.1  christos 			}
   8371  1.1  christos 		      else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec))
   8372  1.1  christos 			;
   8373  1.1  christos 		      else if (sec == NULL || sec->owner == NULL)
   8374  1.1  christos 			{
   8375  1.1  christos 			  bfd_set_error (bfd_error_bad_value);
   8376  1.1  christos 			  ret = FALSE;
   8377  1.1  christos 			}
   8378  1.1  christos 		      else
   8379  1.1  christos 			{
   8380  1.1  christos 			  asection *osec;
   8381  1.1  christos 
   8382  1.1  christos 			  /* We are turning this relocation into one
   8383  1.1  christos 			     against a section symbol.  It would be
   8384  1.1  christos 			     proper to subtract the symbol's value,
   8385  1.1  christos 			     osec->vma, from the emitted reloc addend,
   8386  1.1  christos 			     but ld.so expects buggy relocs.
   8387  1.1  christos 			     FIXME: Why not always use a zero index?  */
   8388  1.1  christos 			  osec = sec->output_section;
   8389  1.1  christos 			  indx = elf_section_data (osec)->dynindx;
   8390  1.1  christos 			  if (indx == 0)
   8391  1.1  christos 			    {
   8392  1.1  christos 			      osec = htab->elf.text_index_section;
   8393  1.1  christos 			      indx = elf_section_data (osec)->dynindx;
   8394  1.1  christos 			    }
   8395  1.1  christos 			  BFD_ASSERT (indx != 0);
   8396  1.1  christos #ifdef DEBUG
   8397  1.1  christos 			  if (indx == 0)
   8398  1.1  christos 			    printf ("indx=%ld section=%s flags=%08x name=%s\n",
   8399  1.1  christos 				    indx, osec->name, osec->flags,
   8400  1.1  christos 				    h->root.root.string);
   8401  1.1  christos #endif
   8402  1.1  christos 			}
   8403  1.1  christos 
   8404  1.1  christos 		      outrel.r_info = ELF32_R_INFO (indx, r_type);
   8405  1.1  christos 		    }
   8406  1.1  christos 		  else if (ifunc != NULL)
   8407  1.1  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   8408  1.1  christos 		  else
   8409  1.1  christos 		    outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE);
   8410  1.1  christos 		}
   8411  1.1  christos 
   8412  1.1  christos 	      loc = sreloc->contents;
   8413  1.1  christos 	      loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
   8414  1.1  christos 	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   8415  1.1  christos 
   8416  1.1  christos 	      if (skip == -1)
   8417  1.1  christos 		continue;
   8418  1.1  christos 
   8419  1.1  christos 	      /* This reloc will be computed at runtime.  We clear the memory
   8420  1.1  christos 		 so that it contains predictable value.  */
   8421  1.1  christos 	      if (! skip
   8422  1.1  christos 		  && ((input_section->flags & SEC_ALLOC) != 0
   8423  1.1  christos 		      || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE))
   8424  1.1  christos 		{
   8425  1.1  christos 		  relocation = howto->pc_relative ? outrel.r_offset : 0;
   8426  1.1  christos 		  addend = 0;
   8427  1.1  christos 		  break;
   8428  1.1  christos 		}
   8429  1.1  christos 	    }
   8430  1.1  christos 	  break;
   8431  1.1  christos 
   8432  1.1  christos 	case R_PPC_RELAX_PLT:
   8433  1.1  christos 	case R_PPC_RELAX_PLTREL24:
   8434  1.1  christos 	  if (h != NULL)
   8435  1.1  christos 	    {
   8436  1.1  christos 	      struct plt_entry *ent;
   8437  1.1  christos 	      bfd_vma got2_addend = 0;
   8438  1.1  christos 
   8439  1.1  christos 	      if (r_type == R_PPC_RELAX_PLTREL24)
   8440  1.1  christos 		{
   8441  1.1  christos 		  if (info->shared)
   8442  1.1  christos 		    got2_addend = addend;
   8443  1.1  christos 		  addend = 0;
   8444  1.1  christos 		}
   8445  1.1  christos 	      ent = find_plt_ent (&h->plt.plist, got2, got2_addend);
   8446  1.1  christos 	      if (htab->plt_type == PLT_NEW)
   8447  1.1  christos 		relocation = (htab->glink->output_section->vma
   8448  1.1  christos 			      + htab->glink->output_offset
   8449  1.1  christos 			      + ent->glink_offset);
   8450  1.1  christos 	      else
   8451  1.1  christos 		relocation = (htab->plt->output_section->vma
   8452  1.1  christos 			      + htab->plt->output_offset
   8453  1.1  christos 			      + ent->plt.offset);
   8454  1.1  christos 	    }
   8455  1.1  christos 	  /* Fall thru */
   8456  1.1  christos 
   8457  1.1  christos 	case R_PPC_RELAX:
   8458  1.1  christos 	  if (info->shared)
   8459  1.1  christos 	    relocation -= (input_section->output_section->vma
   8460  1.1  christos 			   + input_section->output_offset
   8461  1.1  christos 			   + rel->r_offset - 4);
   8462  1.1  christos 
   8463  1.1  christos 	  {
   8464  1.1  christos 	    unsigned long t0;
   8465  1.1  christos 	    unsigned long t1;
   8466  1.1  christos 
   8467  1.1  christos 	    t0 = bfd_get_32 (output_bfd, contents + rel->r_offset);
   8468  1.1  christos 	    t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4);
   8469  1.1  christos 
   8470  1.1  christos 	    /* We're clearing the bits for R_PPC_ADDR16_HA
   8471  1.1  christos 	       and R_PPC_ADDR16_LO here.  */
   8472  1.1  christos 	    t0 &= ~0xffff;
   8473  1.1  christos 	    t1 &= ~0xffff;
   8474  1.1  christos 
   8475  1.1  christos 	    /* t0 is HA, t1 is LO */
   8476  1.1  christos 	    relocation += addend;
   8477  1.1  christos 	    t0 |= ((relocation + 0x8000) >> 16) & 0xffff;
   8478  1.1  christos 	    t1 |= relocation & 0xffff;
   8479  1.1  christos 
   8480  1.1  christos 	    bfd_put_32 (output_bfd, t0, contents + rel->r_offset);
   8481  1.1  christos 	    bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4);
   8482  1.1  christos 
   8483  1.1  christos 	    /* Rewrite the reloc and convert one of the trailing nop
   8484  1.1  christos 	       relocs to describe this relocation.  */
   8485  1.1  christos 	    BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE);
   8486  1.1  christos 	    /* The relocs are at the bottom 2 bytes */
   8487  1.1  christos 	    rel[0].r_offset += 2;
   8488  1.1  christos 	    memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel));
   8489  1.1  christos 	    rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA);
   8490  1.1  christos 	    rel[1].r_offset += 4;
   8491  1.1  christos 	    rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO);
   8492  1.1  christos 	    rel++;
   8493  1.1  christos 	  }
   8494  1.1  christos 	  continue;
   8495  1.1  christos 
   8496  1.1  christos 	  /* Indirect .sdata relocation.  */
   8497  1.1  christos 	case R_PPC_EMB_SDAI16:
   8498  1.1  christos 	  BFD_ASSERT (htab->sdata[0].section != NULL);
   8499  1.1  christos 	  if (!is_static_defined (htab->sdata[0].sym))
   8500  1.1  christos 	    {
   8501  1.1  christos 	      unresolved_reloc = TRUE;
   8502  1.1  christos 	      break;
   8503  1.1  christos 	    }
   8504  1.1  christos 	  relocation
   8505  1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0],
   8506  1.1  christos 						 h, relocation, rel);
   8507  1.1  christos 	  addend = 0;
   8508  1.1  christos 	  break;
   8509  1.1  christos 
   8510  1.1  christos 	  /* Indirect .sdata2 relocation.  */
   8511  1.1  christos 	case R_PPC_EMB_SDA2I16:
   8512  1.1  christos 	  BFD_ASSERT (htab->sdata[1].section != NULL);
   8513  1.1  christos 	  if (!is_static_defined (htab->sdata[1].sym))
   8514  1.1  christos 	    {
   8515  1.1  christos 	      unresolved_reloc = TRUE;
   8516  1.1  christos 	      break;
   8517  1.1  christos 	    }
   8518  1.1  christos 	  relocation
   8519  1.1  christos 	    = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1],
   8520  1.1  christos 						 h, relocation, rel);
   8521  1.1  christos 	  addend = 0;
   8522  1.1  christos 	  break;
   8523  1.1  christos 
   8524  1.1  christos 	  /* Handle the TOC16 reloc.  We want to use the offset within the .got
   8525  1.1  christos 	     section, not the actual VMA.  This is appropriate when generating
   8526  1.1  christos 	     an embedded ELF object, for which the .got section acts like the
   8527  1.1  christos 	     AIX .toc section.  */
   8528  1.1  christos 	case R_PPC_TOC16:			/* phony GOT16 relocations */
   8529  1.1  christos 	  if (sec == NULL || sec->output_section == NULL)
   8530  1.1  christos 	    {
   8531  1.1  christos 	      unresolved_reloc = TRUE;
   8532  1.1  christos 	      break;
   8533  1.1  christos 	    }
   8534  1.1  christos 	  BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec),
   8535  1.1  christos 			      ".got") == 0
   8536  1.1  christos 		      || strcmp (bfd_get_section_name (sec->owner, sec),
   8537  1.1  christos 				 ".cgot") == 0);
   8538  1.1  christos 
   8539  1.1  christos 	  addend -= sec->output_section->vma + sec->output_offset + 0x8000;
   8540  1.1  christos 	  break;
   8541  1.1  christos 
   8542  1.1  christos 	case R_PPC_PLTREL24:
   8543  1.1  christos 	  if (h != NULL && ifunc == NULL)
   8544  1.1  christos 	    {
   8545  1.1  christos 	      struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2,
   8546  1.1  christos 						    info->shared ? addend : 0);
   8547  1.1  christos 	      if (ent == NULL
   8548  1.1  christos 		  || htab->plt == NULL)
   8549  1.1  christos 		{
   8550  1.1  christos 		  /* We didn't make a PLT entry for this symbol.  This
   8551  1.1  christos 		     happens when statically linking PIC code, or when
   8552  1.1  christos 		     using -Bsymbolic.  */
   8553  1.1  christos 		}
   8554  1.1  christos 	      else
   8555  1.1  christos 		{
   8556  1.1  christos 		  /* Relocation is to the entry for this symbol in the
   8557  1.1  christos 		     procedure linkage table.  */
   8558  1.1  christos 		  unresolved_reloc = FALSE;
   8559  1.1  christos 		  if (htab->plt_type == PLT_NEW)
   8560  1.1  christos 		    relocation = (htab->glink->output_section->vma
   8561  1.1  christos 				  + htab->glink->output_offset
   8562  1.1  christos 				  + ent->glink_offset);
   8563  1.1  christos 		  else
   8564  1.1  christos 		    relocation = (htab->plt->output_section->vma
   8565  1.1  christos 				  + htab->plt->output_offset
   8566  1.1  christos 				  + ent->plt.offset);
   8567  1.1  christos 		}
   8568  1.1  christos 	    }
   8569  1.1  christos 
   8570  1.1  christos 	  /* R_PPC_PLTREL24 is rather special.  If non-zero, the
   8571  1.1  christos 	     addend specifies the GOT pointer offset within .got2.
   8572  1.1  christos 	     Don't apply it to the relocation field.  */
   8573  1.1  christos 	  addend = 0;
   8574  1.1  christos 	  break;
   8575  1.1  christos 
   8576  1.1  christos 	  /* Relocate against _SDA_BASE_.  */
   8577  1.1  christos 	case R_PPC_SDAREL16:
   8578  1.1  christos 	  {
   8579  1.1  christos 	    const char *name;
   8580  1.1  christos 	    struct elf_link_hash_entry *sda = htab->sdata[0].sym;
   8581  1.1  christos 
   8582  1.1  christos 	    if (sec == NULL
   8583  1.1  christos 		|| sec->output_section == NULL
   8584  1.1  christos 		|| !is_static_defined (sda))
   8585  1.1  christos 	      {
   8586  1.1  christos 		unresolved_reloc = TRUE;
   8587  1.1  christos 		break;
   8588  1.1  christos 	      }
   8589  1.1  christos 	    addend -= SYM_VAL (sda);
   8590  1.1  christos 
   8591  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   8592  1.1  christos 	    if (! ((CONST_STRNEQ (name, ".sdata")
   8593  1.1  christos 		    && (name[6] == 0 || name[6] == '.'))
   8594  1.1  christos 		   || (CONST_STRNEQ (name, ".sbss")
   8595  1.1  christos 		       && (name[5] == 0 || name[5] == '.'))))
   8596  1.1  christos 	      {
   8597  1.1  christos 		info->callbacks->einfo
   8598  1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   8599  1.1  christos 		     "in the wrong output section (%s)\n"),
   8600  1.1  christos 		   input_bfd,
   8601  1.1  christos 		   sym_name,
   8602  1.1  christos 		   howto->name,
   8603  1.1  christos 		   name);
   8604  1.1  christos 	      }
   8605  1.1  christos 	  }
   8606  1.1  christos 	  break;
   8607  1.1  christos 
   8608  1.1  christos 	  /* Relocate against _SDA2_BASE_.  */
   8609  1.1  christos 	case R_PPC_EMB_SDA2REL:
   8610  1.1  christos 	  {
   8611  1.1  christos 	    const char *name;
   8612  1.1  christos 	    struct elf_link_hash_entry *sda = htab->sdata[1].sym;
   8613  1.1  christos 
   8614  1.1  christos 	    if (sec == NULL
   8615  1.1  christos 		|| sec->output_section == NULL
   8616  1.1  christos 		|| !is_static_defined (sda))
   8617  1.1  christos 	      {
   8618  1.1  christos 		unresolved_reloc = TRUE;
   8619  1.1  christos 		break;
   8620  1.1  christos 	      }
   8621  1.1  christos 	    addend -= SYM_VAL (sda);
   8622  1.1  christos 
   8623  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   8624  1.1  christos 	    if (! (CONST_STRNEQ (name, ".sdata2")
   8625  1.1  christos 		   || CONST_STRNEQ (name, ".sbss2")))
   8626  1.1  christos 	      {
   8627  1.1  christos 		info->callbacks->einfo
   8628  1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   8629  1.1  christos 		     "in the wrong output section (%s)\n"),
   8630  1.1  christos 		   input_bfd,
   8631  1.1  christos 		   sym_name,
   8632  1.1  christos 		   howto->name,
   8633  1.1  christos 		   name);
   8634  1.1  christos 	      }
   8635  1.1  christos 	  }
   8636  1.1  christos 	  break;
   8637  1.1  christos 
   8638  1.1  christos 	case R_PPC_VLE_LO16A:
   8639  1.1  christos 	  relocation = (relocation + addend) & 0xffff;
   8640  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8641  1.1  christos                                relocation, split16a_type);
   8642  1.1  christos 	  continue;
   8643  1.1  christos 
   8644  1.1  christos 	case R_PPC_VLE_LO16D:
   8645  1.1  christos 	  relocation = (relocation + addend) & 0xffff;
   8646  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8647  1.1  christos                                relocation, split16d_type);
   8648  1.1  christos 	  continue;
   8649  1.1  christos 
   8650  1.1  christos 	case R_PPC_VLE_HI16A:
   8651  1.1  christos 	  relocation = ((relocation + addend) >> 16) & 0xffff;
   8652  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8653  1.1  christos                                relocation, split16a_type);
   8654  1.1  christos 	  continue;
   8655  1.1  christos 
   8656  1.1  christos 	case R_PPC_VLE_HI16D:
   8657  1.1  christos 	  relocation = ((relocation + addend) >> 16) & 0xffff;
   8658  1.1  christos 	  ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8659  1.1  christos                                relocation, split16d_type);
   8660  1.1  christos 	  continue;
   8661  1.1  christos 
   8662  1.1  christos 	case R_PPC_VLE_HA16A:
   8663  1.1  christos 	  {
   8664  1.1  christos 	    bfd_vma value = relocation + addend;
   8665  1.1  christos 	    value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
   8666  1.1  christos 	    ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8667  1.1  christos                                  value, split16a_type);
   8668  1.1  christos 	  }
   8669  1.1  christos 	  continue;
   8670  1.1  christos 
   8671  1.1  christos 	case R_PPC_VLE_HA16D:
   8672  1.1  christos 	  {
   8673  1.1  christos 	    bfd_vma value = relocation + addend;
   8674  1.1  christos 	    value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
   8675  1.1  christos 	    ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8676  1.1  christos                                  value, split16d_type);
   8677  1.1  christos 	  }
   8678  1.1  christos 	  continue;
   8679  1.1  christos 
   8680  1.1  christos 	  /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0.  */
   8681  1.1  christos 	case R_PPC_EMB_SDA21:
   8682  1.1  christos 	case R_PPC_VLE_SDA21:
   8683  1.1  christos 	case R_PPC_EMB_RELSDA:
   8684  1.1  christos 	case R_PPC_VLE_SDA21_LO:
   8685  1.1  christos 	  {
   8686  1.1  christos 	    const char *name;
   8687  1.1  christos 	    int reg;
   8688  1.1  christos 	    struct elf_link_hash_entry *sda = NULL;
   8689  1.1  christos 
   8690  1.1  christos 	    if (sec == NULL || sec->output_section == NULL)
   8691  1.1  christos 	      {
   8692  1.1  christos 		unresolved_reloc = TRUE;
   8693  1.1  christos 		break;
   8694  1.1  christos 	      }
   8695  1.1  christos 
   8696  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   8697  1.1  christos 	    if (((CONST_STRNEQ (name, ".sdata")
   8698  1.1  christos 		  && (name[6] == 0 || name[6] == '.'))
   8699  1.1  christos 		 || (CONST_STRNEQ (name, ".sbss")
   8700  1.1  christos 		     && (name[5] == 0 || name[5] == '.'))))
   8701  1.1  christos 	      {
   8702  1.1  christos 		reg = 13;
   8703  1.1  christos 		sda = htab->sdata[0].sym;
   8704  1.1  christos 	      }
   8705  1.1  christos 	    else if (CONST_STRNEQ (name, ".sdata2")
   8706  1.1  christos 		     || CONST_STRNEQ (name, ".sbss2"))
   8707  1.1  christos 	      {
   8708  1.1  christos 		reg = 2;
   8709  1.1  christos 		sda = htab->sdata[1].sym;
   8710  1.1  christos 	      }
   8711  1.1  christos 	    else if (strcmp (name, ".PPC.EMB.sdata0") == 0
   8712  1.1  christos 		     || strcmp (name, ".PPC.EMB.sbss0") == 0)
   8713  1.1  christos 	      {
   8714  1.1  christos 		reg = 0;
   8715  1.1  christos 	      }
   8716  1.1  christos 	    else
   8717  1.1  christos 	      {
   8718  1.1  christos 		info->callbacks->einfo
   8719  1.1  christos 		  (_("%P: %B: the target (%s) of a %s relocation is "
   8720  1.1  christos 		     "in the wrong output section (%s)\n"),
   8721  1.1  christos 		   input_bfd,
   8722  1.1  christos 		   sym_name,
   8723  1.1  christos 		   howto->name,
   8724  1.1  christos 		   name);
   8725  1.1  christos 
   8726  1.1  christos 		bfd_set_error (bfd_error_bad_value);
   8727  1.1  christos 		ret = FALSE;
   8728  1.1  christos 		continue;
   8729  1.1  christos 	      }
   8730  1.1  christos 
   8731  1.1  christos 	    if (sda != NULL)
   8732  1.1  christos 	      {
   8733  1.1  christos 		if (!is_static_defined (sda))
   8734  1.1  christos 		  {
   8735  1.1  christos 		    unresolved_reloc = TRUE;
   8736  1.1  christos 		    break;
   8737  1.1  christos 		  }
   8738  1.1  christos 		addend -= SYM_VAL (sda);
   8739  1.1  christos 	      }
   8740  1.1  christos 
   8741  1.1  christos 	    if (reg == 0
   8742  1.1  christos 		&& (r_type == R_PPC_VLE_SDA21
   8743  1.1  christos 		    || r_type == R_PPC_VLE_SDA21_LO))
   8744  1.1  christos 	      {
   8745  1.1  christos 		/* Use the split20 format.  */
   8746  1.1  christos 		bfd_vma insn, bits12to15, bits21to31;
   8747  1.1  christos 		bfd_vma value  = (relocation + rel->r_offset) & 0xffff;
   8748  1.1  christos 		/* Propagate sign bit, if necessary.  */
   8749  1.1  christos 		insn = (value & 0x8000) ? 0x70107800 : 0x70000000;
   8750  1.1  christos 		bits12to15 = value & 0x700;
   8751  1.1  christos 		bits21to31 = value & 0x7ff;
   8752  1.1  christos 		insn |= bits12to15;
   8753  1.1  christos 		insn |= bits21to31;
   8754  1.1  christos   		bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   8755  1.1  christos 		continue;
   8756  1.1  christos 	      }
   8757  1.1  christos 	    else if (r_type == R_PPC_EMB_SDA21
   8758  1.1  christos 		     || r_type == R_PPC_VLE_SDA21
   8759  1.1  christos 		     || r_type == R_PPC_VLE_SDA21_LO)
   8760  1.1  christos 	      {
   8761  1.1  christos 		bfd_vma insn;  /* Fill in register field.  */
   8762  1.1  christos 
   8763  1.1  christos 		insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
   8764  1.1  christos 		insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT);
   8765  1.1  christos 		bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
   8766  1.1  christos 	      }
   8767  1.1  christos 	  }
   8768  1.1  christos 	  break;
   8769  1.1  christos 
   8770  1.1  christos 	case R_PPC_VLE_SDAREL_LO16A:
   8771  1.1  christos 	case R_PPC_VLE_SDAREL_LO16D:
   8772  1.1  christos 	case R_PPC_VLE_SDAREL_HI16A:
   8773  1.1  christos 	case R_PPC_VLE_SDAREL_HI16D:
   8774  1.1  christos 	case R_PPC_VLE_SDAREL_HA16A:
   8775  1.1  christos 	case R_PPC_VLE_SDAREL_HA16D:
   8776  1.1  christos 	  {
   8777  1.1  christos 	    bfd_vma value;
   8778  1.1  christos 	    const char *name;
   8779  1.1  christos 	    //int reg;
   8780  1.1  christos 	    struct elf_link_hash_entry *sda = NULL;
   8781  1.1  christos 
   8782  1.1  christos 	    if (sec == NULL || sec->output_section == NULL)
   8783  1.1  christos 	      {
   8784  1.1  christos 		unresolved_reloc = TRUE;
   8785  1.1  christos 		break;
   8786  1.1  christos 	      }
   8787  1.1  christos 
   8788  1.1  christos 	    name = bfd_get_section_name (output_bfd, sec->output_section);
   8789  1.1  christos 	    if (((CONST_STRNEQ (name, ".sdata")
   8790  1.1  christos 		  && (name[6] == 0 || name[6] == '.'))
   8791  1.1  christos 		 || (CONST_STRNEQ (name, ".sbss")
   8792  1.1  christos 		     && (name[5] == 0 || name[5] == '.'))))
   8793  1.1  christos 	      {
   8794  1.1  christos 		//reg = 13;
   8795  1.1  christos 		sda = htab->sdata[0].sym;
   8796  1.1  christos 	      }
   8797  1.1  christos 	    else if (CONST_STRNEQ (name, ".sdata2")
   8798  1.1  christos 		     || CONST_STRNEQ (name, ".sbss2"))
   8799  1.1  christos 	      {
   8800  1.1  christos 		//reg = 2;
   8801  1.1  christos 		sda = htab->sdata[1].sym;
   8802  1.1  christos 	      }
   8803  1.1  christos 	    else
   8804  1.1  christos 	      {
   8805  1.1  christos 		(*_bfd_error_handler)
   8806  1.1  christos 		  (_("%B: the target (%s) of a %s relocation is "
   8807  1.1  christos 		     "in the wrong output section (%s)"),
   8808  1.1  christos 		   input_bfd,
   8809  1.1  christos 		   sym_name,
   8810  1.1  christos 		   howto->name,
   8811  1.1  christos 		   name);
   8812  1.1  christos 
   8813  1.1  christos 		bfd_set_error (bfd_error_bad_value);
   8814  1.1  christos 		ret = FALSE;
   8815  1.1  christos 		continue;
   8816  1.1  christos 	      }
   8817  1.1  christos 
   8818  1.1  christos 	    if (sda != NULL)
   8819  1.1  christos 	      {
   8820  1.1  christos 		if (!is_static_defined (sda))
   8821  1.1  christos 		  {
   8822  1.1  christos 		    unresolved_reloc = TRUE;
   8823  1.1  christos 		    break;
   8824  1.1  christos 		  }
   8825  1.1  christos 	      }
   8826  1.1  christos 
   8827  1.1  christos 	   value = sda->root.u.def.section->output_section->vma
   8828  1.1  christos    		   + sda->root.u.def.section->output_offset;
   8829  1.1  christos 
   8830  1.1  christos 	   if (r_type == R_PPC_VLE_SDAREL_LO16A)
   8831  1.1  christos 	      {
   8832  1.1  christos 		value = (value + addend) & 0xffff;
   8833  1.1  christos 	        ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8834  1.1  christos                                      value, split16a_type);
   8835  1.1  christos 	      }
   8836  1.1  christos 	   else if (r_type == R_PPC_VLE_SDAREL_LO16D)
   8837  1.1  christos 	      {
   8838  1.1  christos 		value = (value + addend) & 0xffff;
   8839  1.1  christos 	        ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8840  1.1  christos                                      value, split16d_type);
   8841  1.1  christos 	      }
   8842  1.1  christos 	   else if (r_type == R_PPC_VLE_SDAREL_HI16A)
   8843  1.1  christos 	      {
   8844  1.1  christos 		value = ((value + addend) >> 16) & 0xffff;
   8845  1.1  christos 	        ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8846  1.1  christos                                      value, split16a_type);
   8847  1.1  christos 	      }
   8848  1.1  christos 	   else if (r_type == R_PPC_VLE_SDAREL_HI16D)
   8849  1.1  christos 	      {
   8850  1.1  christos 		value = ((value + addend) >> 16) & 0xffff;
   8851  1.1  christos 	        ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8852  1.1  christos                                      value, split16d_type);
   8853  1.1  christos 	      }
   8854  1.1  christos 	   else if (r_type == R_PPC_VLE_SDAREL_HA16A)
   8855  1.1  christos 	      {
   8856  1.1  christos 		value += addend;
   8857  1.1  christos 		value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
   8858  1.1  christos 	        ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8859  1.1  christos                                      value, split16a_type);
   8860  1.1  christos 	      }
   8861  1.1  christos 	   else if (r_type == R_PPC_VLE_SDAREL_HA16D)
   8862  1.1  christos 	      {
   8863  1.1  christos 		value += addend;
   8864  1.1  christos 		value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff);
   8865  1.1  christos 	        ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset,
   8866  1.1  christos                                      value, split16d_type);
   8867  1.1  christos 	      }
   8868  1.1  christos 	  }
   8869  1.1  christos 	  continue;
   8870  1.1  christos 
   8871  1.1  christos 	  /* Relocate against the beginning of the section.  */
   8872  1.1  christos 	case R_PPC_SECTOFF:
   8873  1.1  christos 	case R_PPC_SECTOFF_LO:
   8874  1.1  christos 	case R_PPC_SECTOFF_HI:
   8875  1.1  christos 	case R_PPC_SECTOFF_HA:
   8876  1.1  christos 	  if (sec == NULL || sec->output_section == NULL)
   8877  1.1  christos 	    {
   8878  1.1  christos 	      unresolved_reloc = TRUE;
   8879  1.1  christos 	      break;
   8880  1.1  christos 	    }
   8881  1.1  christos 	  addend -= sec->output_section->vma;
   8882  1.1  christos 	  break;
   8883  1.1  christos 
   8884  1.1  christos 	  /* Negative relocations.  */
   8885  1.1  christos 	case R_PPC_EMB_NADDR32:
   8886  1.1  christos 	case R_PPC_EMB_NADDR16:
   8887  1.1  christos 	case R_PPC_EMB_NADDR16_LO:
   8888  1.1  christos 	case R_PPC_EMB_NADDR16_HI:
   8889  1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   8890  1.1  christos 	  addend -= 2 * relocation;
   8891  1.1  christos 	  break;
   8892  1.1  christos 
   8893  1.1  christos 	case R_PPC_COPY:
   8894  1.1  christos 	case R_PPC_GLOB_DAT:
   8895  1.1  christos 	case R_PPC_JMP_SLOT:
   8896  1.1  christos 	case R_PPC_RELATIVE:
   8897  1.1  christos 	case R_PPC_IRELATIVE:
   8898  1.1  christos 	case R_PPC_PLT32:
   8899  1.1  christos 	case R_PPC_PLTREL32:
   8900  1.1  christos 	case R_PPC_PLT16_LO:
   8901  1.1  christos 	case R_PPC_PLT16_HI:
   8902  1.1  christos 	case R_PPC_PLT16_HA:
   8903  1.1  christos 	case R_PPC_ADDR30:
   8904  1.1  christos 	case R_PPC_EMB_RELSEC16:
   8905  1.1  christos 	case R_PPC_EMB_RELST_LO:
   8906  1.1  christos 	case R_PPC_EMB_RELST_HI:
   8907  1.1  christos 	case R_PPC_EMB_RELST_HA:
   8908  1.1  christos 	case R_PPC_EMB_BIT_FLD:
   8909  1.1  christos 	  info->callbacks->einfo
   8910  1.1  christos 	    (_("%P: %B: relocation %s is not yet supported for symbol %s\n"),
   8911  1.1  christos 	     input_bfd,
   8912  1.1  christos 	     howto->name,
   8913  1.1  christos 	     sym_name);
   8914  1.1  christos 
   8915  1.1  christos 	  bfd_set_error (bfd_error_invalid_operation);
   8916  1.1  christos 	  ret = FALSE;
   8917  1.1  christos 	  continue;
   8918  1.1  christos 	}
   8919  1.1  christos 
   8920  1.1  christos       /* Do any further special processing.  */
   8921  1.1  christos       switch (r_type)
   8922  1.1  christos 	{
   8923  1.1  christos 	default:
   8924  1.1  christos 	  break;
   8925  1.1  christos 
   8926  1.1  christos 	case R_PPC_ADDR16_HA:
   8927  1.1  christos 	case R_PPC_REL16_HA:
   8928  1.1  christos 	case R_PPC_SECTOFF_HA:
   8929  1.1  christos 	case R_PPC_TPREL16_HA:
   8930  1.1  christos 	case R_PPC_DTPREL16_HA:
   8931  1.1  christos 	case R_PPC_EMB_NADDR16_HA:
   8932  1.1  christos 	case R_PPC_EMB_RELST_HA:
   8933  1.1  christos 	  /* It's just possible that this symbol is a weak symbol
   8934  1.1  christos 	     that's not actually defined anywhere.  In that case,
   8935  1.1  christos 	     'sec' would be NULL, and we should leave the symbol
   8936  1.1  christos 	     alone (it will be set to zero elsewhere in the link).  */
   8937  1.1  christos 	  if (sec == NULL)
   8938  1.1  christos 	    break;
   8939  1.1  christos 	  /* Fall thru */
   8940  1.1  christos 
   8941  1.1  christos 	case R_PPC_PLT16_HA:
   8942  1.1  christos 	case R_PPC_GOT16_HA:
   8943  1.1  christos 	case R_PPC_GOT_TLSGD16_HA:
   8944  1.1  christos 	case R_PPC_GOT_TLSLD16_HA:
   8945  1.1  christos 	case R_PPC_GOT_TPREL16_HA:
   8946  1.1  christos 	case R_PPC_GOT_DTPREL16_HA:
   8947  1.1  christos 	  /* Add 0x10000 if sign bit in 0:15 is set.
   8948  1.1  christos 	     Bits 0:15 are not used.  */
   8949  1.1  christos 	  addend += 0x8000;
   8950  1.1  christos 	  break;
   8951  1.1  christos 
   8952  1.1  christos 	case R_PPC_ADDR16:
   8953  1.1  christos 	case R_PPC_ADDR16_LO:
   8954  1.1  christos 	case R_PPC_GOT16:
   8955  1.1  christos 	case R_PPC_GOT16_LO:
   8956  1.1  christos 	case R_PPC_SDAREL16:
   8957  1.1  christos 	case R_PPC_SECTOFF:
   8958  1.1  christos 	case R_PPC_SECTOFF_LO:
   8959  1.1  christos 	case R_PPC_DTPREL16:
   8960  1.1  christos 	case R_PPC_DTPREL16_LO:
   8961  1.1  christos 	case R_PPC_TPREL16:
   8962  1.1  christos 	case R_PPC_TPREL16_LO:
   8963  1.1  christos 	case R_PPC_GOT_TLSGD16:
   8964  1.1  christos 	case R_PPC_GOT_TLSGD16_LO:
   8965  1.1  christos 	case R_PPC_GOT_TLSLD16:
   8966  1.1  christos 	case R_PPC_GOT_TLSLD16_LO:
   8967  1.1  christos 	case R_PPC_GOT_DTPREL16:
   8968  1.1  christos 	case R_PPC_GOT_DTPREL16_LO:
   8969  1.1  christos 	case R_PPC_GOT_TPREL16:
   8970  1.1  christos 	case R_PPC_GOT_TPREL16_LO:
   8971  1.1  christos 	  {
   8972  1.1  christos 	    /* The 32-bit ABI lacks proper relocations to deal with
   8973  1.1  christos 	       certain 64-bit instructions.  Prevent damage to bits
   8974  1.1  christos 	       that make up part of the insn opcode.  */
   8975  1.1  christos 	    unsigned int insn, mask, lobit;
   8976  1.1  christos 
   8977  1.1  christos 	    insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset);
   8978  1.1  christos 	    mask = 0;
   8979  1.1  christos 	    if (is_insn_ds_form (insn))
   8980  1.1  christos 	      mask = 3;
   8981  1.1  christos 	    else if (is_insn_dq_form (insn))
   8982  1.1  christos 	      mask = 15;
   8983  1.1  christos 	    else
   8984  1.1  christos 	      break;
   8985  1.1  christos 	    lobit = mask & (relocation + addend);
   8986  1.1  christos 	    if (lobit != 0)
   8987  1.1  christos 	      {
   8988  1.1  christos 		addend -= lobit;
   8989  1.1  christos 		info->callbacks->einfo
   8990  1.1  christos 		  (_("%P: %H: error: %s against `%s' not a multiple of %u\n"),
   8991  1.1  christos 		   input_bfd, input_section, rel->r_offset,
   8992  1.1  christos 		   howto->name, sym_name, mask + 1);
   8993  1.1  christos 		bfd_set_error (bfd_error_bad_value);
   8994  1.1  christos 		ret = FALSE;
   8995  1.1  christos 	      }
   8996  1.1  christos 	    addend += insn & mask;
   8997  1.1  christos 	  }
   8998  1.1  christos 	  break;
   8999  1.1  christos 	}
   9000  1.1  christos 
   9001  1.1  christos #ifdef DEBUG
   9002  1.1  christos       fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, "
   9003  1.1  christos 	       "offset = %ld, addend = %ld\n",
   9004  1.1  christos 	       howto->name,
   9005  1.1  christos 	       (int) r_type,
   9006  1.1  christos 	       sym_name,
   9007  1.1  christos 	       r_symndx,
   9008  1.1  christos 	       (long) rel->r_offset,
   9009  1.1  christos 	       (long) addend);
   9010  1.1  christos #endif
   9011  1.1  christos 
   9012  1.1  christos       if (unresolved_reloc
   9013  1.1  christos 	  && !((input_section->flags & SEC_DEBUGGING) != 0
   9014  1.1  christos 	       && h->def_dynamic)
   9015  1.1  christos 	  && _bfd_elf_section_offset (output_bfd, info, input_section,
   9016  1.1  christos 				      rel->r_offset) != (bfd_vma) -1)
   9017  1.1  christos 	{
   9018  1.1  christos 	  info->callbacks->einfo
   9019  1.1  christos 	    (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"),
   9020  1.1  christos 	     input_bfd, input_section, rel->r_offset,
   9021  1.1  christos 	     howto->name,
   9022  1.1  christos 	     sym_name);
   9023  1.1  christos 	  ret = FALSE;
   9024  1.1  christos 	}
   9025  1.1  christos 
   9026  1.1  christos       r = _bfd_final_link_relocate (howto,
   9027  1.1  christos 				    input_bfd,
   9028  1.1  christos 				    input_section,
   9029  1.1  christos 				    contents,
   9030  1.1  christos 				    rel->r_offset,
   9031  1.1  christos 				    relocation,
   9032  1.1  christos 				    addend);
   9033  1.1  christos 
   9034  1.1  christos       if (r != bfd_reloc_ok)
   9035  1.1  christos 	{
   9036  1.1  christos 	  if (r == bfd_reloc_overflow)
   9037  1.1  christos 	    {
   9038  1.1  christos 	      if (warned)
   9039  1.1  christos 		continue;
   9040  1.1  christos 	      if (h != NULL
   9041  1.1  christos 		  && h->root.type == bfd_link_hash_undefweak
   9042  1.1  christos 		  && howto->pc_relative)
   9043  1.1  christos 		{
   9044  1.1  christos 		  /* Assume this is a call protected by other code that
   9045  1.1  christos 		     detect the symbol is undefined.  If this is the case,
   9046  1.1  christos 		     we can safely ignore the overflow.  If not, the
   9047  1.1  christos 		     program is hosed anyway, and a little warning isn't
   9048  1.1  christos 		     going to help.  */
   9049  1.1  christos 
   9050  1.1  christos 		  continue;
   9051  1.1  christos 		}
   9052  1.1  christos 
   9053  1.1  christos 	      if (! (*info->callbacks->reloc_overflow) (info,
   9054  1.1  christos 							(h ? &h->root : NULL),
   9055  1.1  christos 							sym_name,
   9056  1.1  christos 							howto->name,
   9057  1.1  christos 							rel->r_addend,
   9058  1.1  christos 							input_bfd,
   9059  1.1  christos 							input_section,
   9060  1.1  christos 							rel->r_offset))
   9061  1.1  christos 		return FALSE;
   9062  1.1  christos 	    }
   9063  1.1  christos 	  else
   9064  1.1  christos 	    {
   9065  1.1  christos 	      info->callbacks->einfo
   9066  1.1  christos 		(_("%P: %H: %s reloc against `%s': error %d\n"),
   9067  1.1  christos 		 input_bfd, input_section, rel->r_offset,
   9068  1.1  christos 		 howto->name, sym_name, (int) r);
   9069  1.1  christos 	      ret = FALSE;
   9070  1.1  christos 	    }
   9071  1.1  christos 	}
   9072  1.1  christos     }
   9073  1.1  christos 
   9074  1.1  christos #ifdef DEBUG
   9075  1.1  christos   fprintf (stderr, "\n");
   9076  1.1  christos #endif
   9077  1.1  christos 
   9078  1.1  christos   return ret;
   9079  1.1  christos }
   9080  1.1  christos 
   9081  1.1  christos /* Finish up dynamic symbol handling.  We set the contents of various
   9083  1.1  christos    dynamic sections here.  */
   9084  1.1  christos 
   9085  1.1  christos static bfd_boolean
   9086  1.1  christos ppc_elf_finish_dynamic_symbol (bfd *output_bfd,
   9087  1.1  christos 			       struct bfd_link_info *info,
   9088  1.1  christos 			       struct elf_link_hash_entry *h,
   9089  1.1  christos 			       Elf_Internal_Sym *sym)
   9090  1.1  christos {
   9091  1.1  christos   struct ppc_elf_link_hash_table *htab;
   9092  1.1  christos   struct plt_entry *ent;
   9093  1.1  christos   bfd_boolean doneone;
   9094  1.1  christos 
   9095  1.1  christos #ifdef DEBUG
   9096  1.1  christos   fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s",
   9097  1.1  christos 	   h->root.root.string);
   9098  1.1  christos #endif
   9099  1.1  christos 
   9100  1.1  christos   htab = ppc_elf_hash_table (info);
   9101  1.1  christos   BFD_ASSERT (htab->elf.dynobj != NULL);
   9102  1.1  christos 
   9103  1.1  christos   doneone = FALSE;
   9104  1.1  christos   for (ent = h->plt.plist; ent != NULL; ent = ent->next)
   9105  1.1  christos     if (ent->plt.offset != (bfd_vma) -1)
   9106  1.1  christos       {
   9107  1.1  christos 	if (!doneone)
   9108  1.1  christos 	  {
   9109  1.1  christos 	    Elf_Internal_Rela rela;
   9110  1.1  christos 	    bfd_byte *loc;
   9111  1.1  christos 	    bfd_vma reloc_index;
   9112  1.1  christos 
   9113  1.1  christos 	    if (htab->plt_type == PLT_NEW
   9114  1.1  christos 		|| !htab->elf.dynamic_sections_created
   9115  1.1  christos 		|| h->dynindx == -1)
   9116  1.1  christos 	      reloc_index = ent->plt.offset / 4;
   9117  1.1  christos 	    else
   9118  1.1  christos 	      {
   9119  1.1  christos 		reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size)
   9120  1.1  christos 			       / htab->plt_slot_size);
   9121  1.1  christos 		if (reloc_index > PLT_NUM_SINGLE_ENTRIES
   9122  1.1  christos 		    && htab->plt_type == PLT_OLD)
   9123  1.1  christos 		  reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2;
   9124  1.1  christos 	      }
   9125  1.1  christos 
   9126  1.1  christos 	    /* This symbol has an entry in the procedure linkage table.
   9127  1.1  christos 	       Set it up.  */
   9128  1.1  christos 	    if (htab->plt_type == PLT_VXWORKS
   9129  1.1  christos 		&& htab->elf.dynamic_sections_created
   9130  1.1  christos 		&& h->dynindx != -1)
   9131  1.1  christos 	      {
   9132  1.1  christos 		bfd_vma got_offset;
   9133  1.1  christos 		const bfd_vma *plt_entry;
   9134  1.1  christos 
   9135  1.1  christos 		/* The first three entries in .got.plt are reserved.  */
   9136  1.1  christos 		got_offset = (reloc_index + 3) * 4;
   9137  1.1  christos 
   9138  1.1  christos 		/* Use the right PLT. */
   9139  1.1  christos 		plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry
   9140  1.1  christos 			    : ppc_elf_vxworks_plt_entry;
   9141  1.1  christos 
   9142  1.1  christos 		/* Fill in the .plt on VxWorks.  */
   9143  1.1  christos 		if (info->shared)
   9144  1.1  christos 		  {
   9145  1.1  christos 		    bfd_put_32 (output_bfd,
   9146  1.1  christos 				plt_entry[0] | PPC_HA (got_offset),
   9147  1.1  christos 				htab->plt->contents + ent->plt.offset + 0);
   9148  1.1  christos 		    bfd_put_32 (output_bfd,
   9149  1.1  christos 				plt_entry[1] | PPC_LO (got_offset),
   9150  1.1  christos 				htab->plt->contents + ent->plt.offset + 4);
   9151  1.1  christos 		  }
   9152  1.1  christos 		else
   9153  1.1  christos 		  {
   9154  1.1  christos 		    bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot);
   9155  1.1  christos 
   9156  1.1  christos 		    bfd_put_32 (output_bfd,
   9157  1.1  christos 				plt_entry[0] | PPC_HA (got_loc),
   9158  1.1  christos 				htab->plt->contents + ent->plt.offset + 0);
   9159  1.1  christos 		    bfd_put_32 (output_bfd,
   9160  1.1  christos 				plt_entry[1] | PPC_LO (got_loc),
   9161  1.1  christos 				htab->plt->contents + ent->plt.offset + 4);
   9162  1.1  christos 		  }
   9163  1.1  christos 
   9164  1.1  christos 		bfd_put_32 (output_bfd, plt_entry[2],
   9165  1.1  christos 			    htab->plt->contents + ent->plt.offset + 8);
   9166  1.1  christos 		bfd_put_32 (output_bfd, plt_entry[3],
   9167  1.1  christos 			    htab->plt->contents + ent->plt.offset + 12);
   9168  1.1  christos 
   9169  1.1  christos 		/* This instruction is an immediate load.  The value loaded is
   9170  1.1  christos 		   the byte offset of the R_PPC_JMP_SLOT relocation from the
   9171  1.1  christos 		   start of the .rela.plt section.  The value is stored in the
   9172  1.1  christos 		   low-order 16 bits of the load instruction.  */
   9173  1.1  christos 		/* NOTE: It appears that this is now an index rather than a
   9174  1.1  christos 		   prescaled offset.  */
   9175  1.1  christos 		bfd_put_32 (output_bfd,
   9176  1.1  christos 			    plt_entry[4] | reloc_index,
   9177  1.1  christos 			    htab->plt->contents + ent->plt.offset + 16);
   9178  1.1  christos 		/* This instruction is a PC-relative branch whose target is
   9179  1.1  christos 		   the start of the PLT section.  The address of this branch
   9180  1.1  christos 		   instruction is 20 bytes beyond the start of this PLT entry.
   9181  1.1  christos 		   The address is encoded in bits 6-29, inclusive.  The value
   9182  1.1  christos 		   stored is right-shifted by two bits, permitting a 26-bit
   9183  1.1  christos 		   offset.  */
   9184  1.1  christos 		bfd_put_32 (output_bfd,
   9185  1.1  christos 			    (plt_entry[5]
   9186  1.1  christos 			     | (-(ent->plt.offset + 20) & 0x03fffffc)),
   9187  1.1  christos 			    htab->plt->contents + ent->plt.offset + 20);
   9188  1.1  christos 		bfd_put_32 (output_bfd, plt_entry[6],
   9189  1.1  christos 			    htab->plt->contents + ent->plt.offset + 24);
   9190  1.1  christos 		bfd_put_32 (output_bfd, plt_entry[7],
   9191  1.1  christos 			    htab->plt->contents + ent->plt.offset + 28);
   9192  1.1  christos 
   9193  1.1  christos 		/* Fill in the GOT entry corresponding to this PLT slot with
   9194  1.1  christos 		   the address immediately after the "bctr" instruction
   9195  1.1  christos 		   in this PLT entry.  */
   9196  1.1  christos 		bfd_put_32 (output_bfd, (htab->plt->output_section->vma
   9197  1.1  christos 					 + htab->plt->output_offset
   9198  1.1  christos 					 + ent->plt.offset + 16),
   9199  1.1  christos 			    htab->sgotplt->contents + got_offset);
   9200  1.1  christos 
   9201  1.1  christos 		if (!info->shared)
   9202  1.1  christos 		  {
   9203  1.1  christos 		    /* Fill in a couple of entries in .rela.plt.unloaded.  */
   9204  1.1  christos 		    loc = htab->srelplt2->contents
   9205  1.1  christos 		      + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index
   9206  1.1  christos 			  * VXWORKS_PLT_NON_JMP_SLOT_RELOCS)
   9207  1.1  christos 			 * sizeof (Elf32_External_Rela));
   9208  1.1  christos 
   9209  1.1  christos 		    /* Provide the @ha relocation for the first instruction.  */
   9210  1.1  christos 		    rela.r_offset = (htab->plt->output_section->vma
   9211  1.1  christos 				     + htab->plt->output_offset
   9212  1.1  christos 				     + ent->plt.offset + 2);
   9213  1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   9214  1.1  christos 						R_PPC_ADDR16_HA);
   9215  1.1  christos 		    rela.r_addend = got_offset;
   9216  1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9217  1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   9218  1.1  christos 
   9219  1.1  christos 		    /* Provide the @l relocation for the second instruction.  */
   9220  1.1  christos 		    rela.r_offset = (htab->plt->output_section->vma
   9221  1.1  christos 				     + htab->plt->output_offset
   9222  1.1  christos 				     + ent->plt.offset + 6);
   9223  1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx,
   9224  1.1  christos 						R_PPC_ADDR16_LO);
   9225  1.1  christos 		    rela.r_addend = got_offset;
   9226  1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9227  1.1  christos 		    loc += sizeof (Elf32_External_Rela);
   9228  1.1  christos 
   9229  1.1  christos 		    /* Provide a relocation for the GOT entry corresponding to this
   9230  1.1  christos 		       PLT slot.  Point it at the middle of the .plt entry.  */
   9231  1.1  christos 		    rela.r_offset = (htab->sgotplt->output_section->vma
   9232  1.1  christos 				     + htab->sgotplt->output_offset
   9233  1.1  christos 				     + got_offset);
   9234  1.1  christos 		    rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx,
   9235  1.1  christos 						R_PPC_ADDR32);
   9236  1.1  christos 		    rela.r_addend = ent->plt.offset + 16;
   9237  1.1  christos 		    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9238  1.1  christos 		  }
   9239  1.1  christos 
   9240  1.1  christos 		/* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT.
   9241  1.1  christos 		   In particular, the offset for the relocation is not the
   9242  1.1  christos 		   address of the PLT entry for this function, as specified
   9243  1.1  christos 		   by the ABI.  Instead, the offset is set to the address of
   9244  1.1  christos 		   the GOT slot for this function.  See EABI 4.4.4.1.  */
   9245  1.1  christos 		rela.r_offset = (htab->sgotplt->output_section->vma
   9246  1.1  christos 				 + htab->sgotplt->output_offset
   9247  1.1  christos 				 + got_offset);
   9248  1.1  christos 
   9249  1.1  christos 	      }
   9250  1.1  christos 	    else
   9251  1.1  christos 	      {
   9252  1.1  christos 		asection *splt = htab->plt;
   9253  1.1  christos 		if (!htab->elf.dynamic_sections_created
   9254  1.1  christos 		    || h->dynindx == -1)
   9255  1.1  christos 		  splt = htab->iplt;
   9256  1.1  christos 
   9257  1.1  christos 		rela.r_offset = (splt->output_section->vma
   9258  1.1  christos 				 + splt->output_offset
   9259  1.1  christos 				 + ent->plt.offset);
   9260  1.1  christos 		if (htab->plt_type == PLT_OLD
   9261  1.1  christos 		    || !htab->elf.dynamic_sections_created
   9262  1.1  christos 		    || h->dynindx == -1)
   9263  1.1  christos 		  {
   9264  1.1  christos 		    /* We don't need to fill in the .plt.  The ppc dynamic
   9265  1.1  christos 		       linker will fill it in.  */
   9266  1.1  christos 		  }
   9267  1.1  christos 		else
   9268  1.1  christos 		  {
   9269  1.1  christos 		    bfd_vma val = (htab->glink_pltresolve + ent->plt.offset
   9270  1.1  christos 				   + htab->glink->output_section->vma
   9271  1.1  christos 				   + htab->glink->output_offset);
   9272  1.1  christos 		    bfd_put_32 (output_bfd, val,
   9273  1.1  christos 				splt->contents + ent->plt.offset);
   9274  1.1  christos 		  }
   9275  1.1  christos 	      }
   9276  1.1  christos 
   9277  1.1  christos 	    /* Fill in the entry in the .rela.plt section.  */
   9278  1.1  christos 	    rela.r_addend = 0;
   9279  1.1  christos 	    if (!htab->elf.dynamic_sections_created
   9280  1.1  christos 		|| h->dynindx == -1)
   9281  1.1  christos 	      {
   9282  1.1  christos 		BFD_ASSERT (h->type == STT_GNU_IFUNC
   9283  1.1  christos 			    && h->def_regular
   9284  1.1  christos 			    && (h->root.type == bfd_link_hash_defined
   9285  1.1  christos 				|| h->root.type == bfd_link_hash_defweak));
   9286  1.1  christos 		rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE);
   9287  1.1  christos 		rela.r_addend = SYM_VAL (h);
   9288  1.1  christos 	      }
   9289  1.1  christos 	    else
   9290  1.1  christos 	      rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT);
   9291  1.1  christos 
   9292  1.1  christos 	    if (!htab->elf.dynamic_sections_created
   9293  1.1  christos 		|| h->dynindx == -1)
   9294  1.1  christos 	      loc = (htab->reliplt->contents
   9295  1.1  christos 		     + (htab->reliplt->reloc_count++
   9296  1.1  christos 			* sizeof (Elf32_External_Rela)));
   9297  1.1  christos 	    else
   9298  1.1  christos 	      loc = (htab->relplt->contents
   9299  1.1  christos 		     + reloc_index * sizeof (Elf32_External_Rela));
   9300  1.1  christos 	    bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9301  1.1  christos 
   9302  1.1  christos 	    if (!h->def_regular)
   9303  1.1  christos 	      {
   9304  1.1  christos 		/* Mark the symbol as undefined, rather than as
   9305  1.1  christos 		   defined in the .plt section.  Leave the value if
   9306  1.1  christos 		   there were any relocations where pointer equality
   9307  1.1  christos 		   matters (this is a clue for the dynamic linker, to
   9308  1.1  christos 		   make function pointer comparisons work between an
   9309  1.1  christos 		   application and shared library), otherwise set it
   9310  1.1  christos 		   to zero.  */
   9311  1.1  christos 		sym->st_shndx = SHN_UNDEF;
   9312  1.1  christos 		if (!h->pointer_equality_needed)
   9313  1.1  christos 		  sym->st_value = 0;
   9314  1.1  christos 		else if (!h->ref_regular_nonweak)
   9315  1.1  christos 		  {
   9316  1.1  christos 		    /* This breaks function pointer comparisons, but
   9317  1.1  christos 		       that is better than breaking tests for a NULL
   9318  1.1  christos 		       function pointer.  */
   9319  1.1  christos 		    sym->st_value = 0;
   9320  1.1  christos 		  }
   9321  1.1  christos 	      }
   9322  1.1  christos 	    else if (h->type == STT_GNU_IFUNC
   9323  1.1  christos 		     && !info->shared)
   9324  1.1  christos 	      {
   9325  1.1  christos 		/* Set the value of ifunc symbols in a non-pie
   9326  1.1  christos 		   executable to the glink entry.  This is to avoid
   9327  1.1  christos 		   text relocations.  We can't do this for ifunc in
   9328  1.1  christos 		   allocate_dynrelocs, as we do for normal dynamic
   9329  1.1  christos 		   function symbols with plt entries, because we need
   9330  1.1  christos 		   to keep the original value around for the ifunc
   9331  1.1  christos 		   relocation.  */
   9332  1.1  christos 		sym->st_shndx = (_bfd_elf_section_from_bfd_section
   9333  1.1  christos 				 (output_bfd, htab->glink->output_section));
   9334  1.1  christos 		sym->st_value = (ent->glink_offset
   9335  1.1  christos 				 + htab->glink->output_offset
   9336  1.1  christos 				 + htab->glink->output_section->vma);
   9337  1.1  christos 	      }
   9338  1.1  christos 	    doneone = TRUE;
   9339  1.1  christos 	  }
   9340  1.1  christos 
   9341  1.1  christos 	if (htab->plt_type == PLT_NEW
   9342  1.1  christos 	    || !htab->elf.dynamic_sections_created
   9343  1.1  christos 	    || h->dynindx == -1)
   9344  1.1  christos 	  {
   9345  1.1  christos 	    unsigned char *p;
   9346  1.1  christos 	    asection *splt = htab->plt;
   9347  1.1  christos 	    if (!htab->elf.dynamic_sections_created
   9348  1.1  christos 		|| h->dynindx == -1)
   9349  1.1  christos 	      splt = htab->iplt;
   9350  1.1  christos 
   9351  1.1  christos 	    p = (unsigned char *) htab->glink->contents + ent->glink_offset;
   9352  1.1  christos 
   9353  1.1  christos 	    if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt)
   9354  1.1  christos 	      {
   9355  1.1  christos 		bfd_put_32 (output_bfd, LWZ_11_3, p);
   9356  1.1  christos 		p += 4;
   9357  1.1  christos 		bfd_put_32 (output_bfd, LWZ_12_3 + 4, p);
   9358  1.1  christos 		p += 4;
   9359  1.1  christos 		bfd_put_32 (output_bfd, MR_0_3, p);
   9360  1.1  christos 		p += 4;
   9361  1.1  christos 		bfd_put_32 (output_bfd, CMPWI_11_0, p);
   9362  1.1  christos 		p += 4;
   9363  1.1  christos 		bfd_put_32 (output_bfd, ADD_3_12_2, p);
   9364  1.1  christos 		p += 4;
   9365  1.1  christos 		bfd_put_32 (output_bfd, BEQLR, p);
   9366  1.1  christos 		p += 4;
   9367  1.1  christos 		bfd_put_32 (output_bfd, MR_3_0, p);
   9368  1.1  christos 		p += 4;
   9369  1.1  christos 		bfd_put_32 (output_bfd, NOP, p);
   9370  1.1  christos 		p += 4;
   9371  1.1  christos 	      }
   9372  1.1  christos 
   9373  1.1  christos 	    write_glink_stub (ent, splt, p, info);
   9374  1.1  christos 
   9375  1.1  christos 	    if (!info->shared)
   9376  1.1  christos 	      /* We only need one non-PIC glink stub.  */
   9377  1.1  christos 	      break;
   9378  1.1  christos 	  }
   9379  1.1  christos 	else
   9380  1.1  christos 	  break;
   9381  1.1  christos       }
   9382  1.1  christos 
   9383  1.1  christos   if (h->needs_copy)
   9384  1.1  christos     {
   9385  1.1  christos       asection *s;
   9386  1.1  christos       Elf_Internal_Rela rela;
   9387  1.1  christos       bfd_byte *loc;
   9388  1.1  christos 
   9389  1.1  christos       /* This symbols needs a copy reloc.  Set it up.  */
   9390  1.1  christos 
   9391  1.1  christos #ifdef DEBUG
   9392  1.1  christos       fprintf (stderr, ", copy");
   9393  1.1  christos #endif
   9394  1.1  christos 
   9395  1.1  christos       BFD_ASSERT (h->dynindx != -1);
   9396  1.1  christos 
   9397  1.1  christos       if (ppc_elf_hash_entry (h)->has_sda_refs)
   9398  1.1  christos 	s = htab->relsbss;
   9399  1.1  christos       else
   9400  1.1  christos 	s = htab->relbss;
   9401  1.1  christos       BFD_ASSERT (s != NULL);
   9402  1.1  christos 
   9403  1.1  christos       rela.r_offset = SYM_VAL (h);
   9404  1.1  christos       rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY);
   9405  1.1  christos       rela.r_addend = 0;
   9406  1.1  christos       loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
   9407  1.1  christos       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9408  1.1  christos     }
   9409  1.1  christos 
   9410  1.1  christos #ifdef DEBUG
   9411  1.1  christos   fprintf (stderr, "\n");
   9412  1.1  christos #endif
   9413  1.1  christos 
   9414  1.1  christos   return TRUE;
   9415  1.1  christos }
   9416  1.1  christos 
   9417  1.1  christos static enum elf_reloc_type_class
   9419  1.1  christos ppc_elf_reloc_type_class (const struct bfd_link_info *info,
   9420  1.1  christos 			  const asection *rel_sec,
   9421  1.1  christos 			  const Elf_Internal_Rela *rela)
   9422  1.1  christos {
   9423  1.1  christos   struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info);
   9424  1.1  christos 
   9425  1.1  christos   if (rel_sec == htab->reliplt)
   9426  1.1  christos     return reloc_class_ifunc;
   9427  1.1  christos 
   9428  1.1  christos   switch (ELF32_R_TYPE (rela->r_info))
   9429  1.1  christos     {
   9430  1.1  christos     case R_PPC_RELATIVE:
   9431  1.1  christos       return reloc_class_relative;
   9432  1.1  christos     case R_PPC_JMP_SLOT:
   9433  1.1  christos       return reloc_class_plt;
   9434  1.1  christos     case R_PPC_COPY:
   9435  1.1  christos       return reloc_class_copy;
   9436  1.1  christos     default:
   9437  1.1  christos       return reloc_class_normal;
   9438  1.1  christos     }
   9439  1.1  christos }
   9440  1.1  christos 
   9441  1.1  christos /* Finish up the dynamic sections.  */
   9443  1.1  christos 
   9444  1.1  christos static bfd_boolean
   9445  1.1  christos ppc_elf_finish_dynamic_sections (bfd *output_bfd,
   9446  1.1  christos 				 struct bfd_link_info *info)
   9447  1.1  christos {
   9448  1.1  christos   asection *sdyn;
   9449  1.1  christos   asection *splt;
   9450  1.1  christos   struct ppc_elf_link_hash_table *htab;
   9451  1.1  christos   bfd_vma got;
   9452  1.1  christos   bfd *dynobj;
   9453  1.1  christos   bfd_boolean ret = TRUE;
   9454  1.1  christos 
   9455  1.1  christos #ifdef DEBUG
   9456  1.1  christos   fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n");
   9457  1.1  christos #endif
   9458  1.1  christos 
   9459  1.1  christos   htab = ppc_elf_hash_table (info);
   9460  1.1  christos   dynobj = elf_hash_table (info)->dynobj;
   9461  1.1  christos   sdyn = bfd_get_linker_section (dynobj, ".dynamic");
   9462  1.1  christos   if (htab->is_vxworks)
   9463  1.1  christos     splt = bfd_get_linker_section (dynobj, ".plt");
   9464  1.1  christos   else
   9465  1.1  christos     splt = NULL;
   9466  1.1  christos 
   9467  1.1  christos   got = 0;
   9468  1.1  christos   if (htab->elf.hgot != NULL)
   9469  1.1  christos     got = SYM_VAL (htab->elf.hgot);
   9470  1.1  christos 
   9471  1.1  christos   if (htab->elf.dynamic_sections_created)
   9472  1.1  christos     {
   9473  1.1  christos       Elf32_External_Dyn *dyncon, *dynconend;
   9474  1.1  christos 
   9475  1.1  christos       BFD_ASSERT (htab->plt != NULL && sdyn != NULL);
   9476  1.1  christos 
   9477  1.1  christos       dyncon = (Elf32_External_Dyn *) sdyn->contents;
   9478  1.1  christos       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
   9479  1.1  christos       for (; dyncon < dynconend; dyncon++)
   9480  1.1  christos 	{
   9481  1.1  christos 	  Elf_Internal_Dyn dyn;
   9482  1.1  christos 	  asection *s;
   9483  1.1  christos 
   9484  1.1  christos 	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
   9485  1.1  christos 
   9486  1.1  christos 	  switch (dyn.d_tag)
   9487  1.1  christos 	    {
   9488  1.1  christos 	    case DT_PLTGOT:
   9489  1.1  christos 	      if (htab->is_vxworks)
   9490  1.1  christos 		s = htab->sgotplt;
   9491  1.1  christos 	      else
   9492  1.1  christos 		s = htab->plt;
   9493  1.1  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   9494  1.1  christos 	      break;
   9495  1.1  christos 
   9496  1.1  christos 	    case DT_PLTRELSZ:
   9497  1.1  christos 	      dyn.d_un.d_val = htab->relplt->size;
   9498  1.1  christos 	      break;
   9499  1.1  christos 
   9500  1.1  christos 	    case DT_JMPREL:
   9501  1.1  christos 	      s = htab->relplt;
   9502  1.1  christos 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
   9503  1.1  christos 	      break;
   9504  1.1  christos 
   9505  1.1  christos 	    case DT_PPC_GOT:
   9506  1.1  christos 	      dyn.d_un.d_ptr = got;
   9507  1.1  christos 	      break;
   9508  1.1  christos 
   9509  1.1  christos 	    case DT_RELASZ:
   9510  1.1  christos 	      if (htab->is_vxworks)
   9511  1.1  christos 		{
   9512  1.1  christos 		  if (htab->relplt)
   9513  1.1  christos 		    dyn.d_un.d_ptr -= htab->relplt->size;
   9514  1.1  christos 		  break;
   9515  1.1  christos 		}
   9516  1.1  christos 	      continue;
   9517  1.1  christos 
   9518  1.1  christos 	    default:
   9519  1.1  christos 	      if (htab->is_vxworks
   9520  1.1  christos 		  && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
   9521  1.1  christos 		break;
   9522  1.1  christos 	      continue;
   9523  1.1  christos 	    }
   9524  1.1  christos 
   9525  1.1  christos 	  bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
   9526  1.1  christos 	}
   9527  1.1  christos     }
   9528  1.1  christos 
   9529  1.1  christos   if (htab->got != NULL)
   9530  1.1  christos     {
   9531  1.1  christos       if (htab->elf.hgot->root.u.def.section == htab->got
   9532  1.1  christos 	  || htab->elf.hgot->root.u.def.section == htab->sgotplt)
   9533  1.1  christos 	{
   9534  1.1  christos 	  unsigned char *p = htab->elf.hgot->root.u.def.section->contents;
   9535  1.1  christos 
   9536  1.1  christos 	  p += htab->elf.hgot->root.u.def.value;
   9537  1.1  christos 	  if (htab->plt_type == PLT_OLD)
   9538  1.1  christos 	    {
   9539  1.1  christos 	      /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4
   9540  1.1  christos 		 so that a function can easily find the address of
   9541  1.1  christos 		 _GLOBAL_OFFSET_TABLE_.  */
   9542  1.1  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4
   9543  1.1  christos 			  < htab->elf.hgot->root.u.def.section->size);
   9544  1.1  christos 	      bfd_put_32 (output_bfd, 0x4e800021, p - 4);
   9545  1.1  christos 	    }
   9546  1.1  christos 
   9547  1.1  christos 	  if (sdyn != NULL)
   9548  1.1  christos 	    {
   9549  1.1  christos 	      bfd_vma val = sdyn->output_section->vma + sdyn->output_offset;
   9550  1.1  christos 	      BFD_ASSERT (htab->elf.hgot->root.u.def.value
   9551  1.1  christos 			  < htab->elf.hgot->root.u.def.section->size);
   9552  1.1  christos 	      bfd_put_32 (output_bfd, val, p);
   9553  1.1  christos 	    }
   9554  1.1  christos 	}
   9555  1.1  christos       else
   9556  1.1  christos 	{
   9557  1.1  christos 	  info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"),
   9558  1.1  christos 				  htab->elf.hgot->root.root.string,
   9559  1.1  christos 				  (htab->sgotplt != NULL
   9560  1.1  christos 				   ? htab->sgotplt->name : htab->got->name));
   9561  1.1  christos 	  bfd_set_error (bfd_error_bad_value);
   9562  1.1  christos 	  ret = FALSE;
   9563  1.1  christos 	}
   9564  1.1  christos 
   9565  1.1  christos       elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4;
   9566  1.1  christos     }
   9567  1.1  christos 
   9568  1.1  christos   /* Fill in the first entry in the VxWorks procedure linkage table.  */
   9569  1.1  christos   if (splt && splt->size > 0)
   9570  1.1  christos     {
   9571  1.1  christos       /* Use the right PLT. */
   9572  1.1  christos       const bfd_vma *plt_entry = (info->shared
   9573  1.1  christos 				  ? ppc_elf_vxworks_pic_plt0_entry
   9574  1.1  christos 				  : ppc_elf_vxworks_plt0_entry);
   9575  1.1  christos 
   9576  1.1  christos       if (!info->shared)
   9577  1.1  christos 	{
   9578  1.1  christos 	  bfd_vma got_value = SYM_VAL (htab->elf.hgot);
   9579  1.1  christos 
   9580  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value),
   9581  1.1  christos 		      splt->contents +  0);
   9582  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value),
   9583  1.1  christos 		      splt->contents +  4);
   9584  1.1  christos 	}
   9585  1.1  christos       else
   9586  1.1  christos 	{
   9587  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[0], splt->contents +  0);
   9588  1.1  christos 	  bfd_put_32 (output_bfd, plt_entry[1], splt->contents +  4);
   9589  1.1  christos 	}
   9590  1.1  christos       bfd_put_32 (output_bfd, plt_entry[2], splt->contents +  8);
   9591  1.1  christos       bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12);
   9592  1.1  christos       bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16);
   9593  1.1  christos       bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20);
   9594  1.1  christos       bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24);
   9595  1.1  christos       bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28);
   9596  1.1  christos 
   9597  1.1  christos       if (! info->shared)
   9598  1.1  christos 	{
   9599  1.1  christos 	  Elf_Internal_Rela rela;
   9600  1.1  christos 	  bfd_byte *loc;
   9601  1.1  christos 
   9602  1.1  christos 	  loc = htab->srelplt2->contents;
   9603  1.1  christos 
   9604  1.1  christos 	  /* Output the @ha relocation for the first instruction.  */
   9605  1.1  christos 	  rela.r_offset = (htab->plt->output_section->vma
   9606  1.1  christos 			   + htab->plt->output_offset
   9607  1.1  christos 			   + 2);
   9608  1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   9609  1.1  christos 	  rela.r_addend = 0;
   9610  1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9611  1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   9612  1.1  christos 
   9613  1.1  christos 	  /* Output the @l relocation for the second instruction.  */
   9614  1.1  christos 	  rela.r_offset = (htab->plt->output_section->vma
   9615  1.1  christos 			   + htab->plt->output_offset
   9616  1.1  christos 			   + 6);
   9617  1.1  christos 	  rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   9618  1.1  christos 	  rela.r_addend = 0;
   9619  1.1  christos 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   9620  1.1  christos 	  loc += sizeof (Elf32_External_Rela);
   9621  1.1  christos 
   9622  1.1  christos 	  /* Fix up the remaining relocations.  They may have the wrong
   9623  1.1  christos 	     symbol index for _G_O_T_ or _P_L_T_ depending on the order
   9624  1.1  christos 	     in which symbols were output.  */
   9625  1.1  christos 	  while (loc < htab->srelplt2->contents + htab->srelplt2->size)
   9626  1.1  christos 	    {
   9627  1.1  christos 	      Elf_Internal_Rela rel;
   9628  1.1  christos 
   9629  1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   9630  1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA);
   9631  1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   9632  1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   9633  1.1  christos 
   9634  1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   9635  1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO);
   9636  1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   9637  1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   9638  1.1  christos 
   9639  1.1  christos 	      bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
   9640  1.1  christos 	      rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32);
   9641  1.1  christos 	      bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
   9642  1.1  christos 	      loc += sizeof (Elf32_External_Rela);
   9643  1.1  christos 	    }
   9644  1.1  christos 	}
   9645  1.1  christos     }
   9646  1.1  christos 
   9647  1.1  christos   if (htab->glink != NULL
   9648  1.1  christos       && htab->glink->contents != NULL
   9649  1.1  christos       && htab->elf.dynamic_sections_created)
   9650  1.1  christos     {
   9651  1.1  christos       unsigned char *p;
   9652  1.1  christos       unsigned char *endp;
   9653  1.1  christos       bfd_vma res0;
   9654  1.1  christos       unsigned int i;
   9655  1.1  christos 
   9656  1.1  christos       /*
   9657  1.1  christos        * PIC glink code is the following:
   9658  1.1  christos        *
   9659  1.1  christos        * # ith PLT code stub.
   9660  1.1  christos        *   addis 11,30,(plt+(i-1)*4-got)@ha
   9661  1.1  christos        *   lwz 11,(plt+(i-1)*4-got)@l(11)
   9662  1.1  christos        *   mtctr 11
   9663  1.1  christos        *   bctr
   9664  1.1  christos        *
   9665  1.1  christos        * # A table of branches, one for each plt entry.
   9666  1.1  christos        * # The idea is that the plt call stub loads ctr and r11 with these
   9667  1.1  christos        * # addresses, so (r11 - res_0) gives the plt index * 4.
   9668  1.1  christos        * res_0:	b PLTresolve
   9669  1.1  christos        * res_1:	b PLTresolve
   9670  1.1  christos        * .
   9671  1.1  christos        * # Some number of entries towards the end can be nops
   9672  1.1  christos        * res_n_m3: nop
   9673  1.1  christos        * res_n_m2: nop
   9674  1.1  christos        * res_n_m1:
   9675  1.1  christos        *
   9676  1.1  christos        * PLTresolve:
   9677  1.1  christos        *    addis 11,11,(1f-res_0)@ha
   9678  1.1  christos        *    mflr 0
   9679  1.1  christos        *    bcl 20,31,1f
   9680  1.1  christos        * 1: addi 11,11,(1b-res_0)@l
   9681  1.1  christos        *    mflr 12
   9682  1.1  christos        *    mtlr 0
   9683  1.1  christos        *    sub 11,11,12                # r11 = index * 4
   9684  1.1  christos        *    addis 12,12,(got+4-1b)@ha
   9685  1.1  christos        *    lwz 0,(got+4-1b)@l(12)      # got[1] address of dl_runtime_resolve
   9686  1.1  christos        *    lwz 12,(got+8-1b)@l(12)     # got[2] contains the map address
   9687  1.1  christos        *    mtctr 0
   9688  1.1  christos        *    add 0,11,11
   9689  1.1  christos        *    add 11,0,11                 # r11 = index * 12 = reloc offset.
   9690  1.1  christos        *    bctr
   9691  1.1  christos        */
   9692  1.1  christos       static const unsigned int pic_plt_resolve[] =
   9693  1.1  christos 	{
   9694  1.1  christos 	  ADDIS_11_11,
   9695  1.1  christos 	  MFLR_0,
   9696  1.1  christos 	  BCL_20_31,
   9697  1.1  christos 	  ADDI_11_11,
   9698  1.1  christos 	  MFLR_12,
   9699  1.1  christos 	  MTLR_0,
   9700  1.1  christos 	  SUB_11_11_12,
   9701  1.1  christos 	  ADDIS_12_12,
   9702  1.1  christos 	  LWZ_0_12,
   9703  1.1  christos 	  LWZ_12_12,
   9704  1.1  christos 	  MTCTR_0,
   9705  1.1  christos 	  ADD_0_11_11,
   9706  1.1  christos 	  ADD_11_0_11,
   9707  1.1  christos 	  BCTR,
   9708  1.1  christos 	  NOP,
   9709  1.1  christos 	  NOP
   9710  1.1  christos 	};
   9711  1.1  christos 
   9712  1.1  christos       /*
   9713  1.1  christos        * Non-PIC glink code is a little simpler.
   9714  1.1  christos        *
   9715  1.1  christos        * # ith PLT code stub.
   9716  1.1  christos        *   lis 11,(plt+(i-1)*4)@ha
   9717  1.1  christos        *   lwz 11,(plt+(i-1)*4)@l(11)
   9718  1.1  christos        *   mtctr 11
   9719  1.1  christos        *   bctr
   9720  1.1  christos        *
   9721  1.1  christos        * The branch table is the same, then comes
   9722  1.1  christos        *
   9723  1.1  christos        * PLTresolve:
   9724  1.1  christos        *    lis 12,(got+4)@ha
   9725  1.1  christos        *    addis 11,11,(-res_0)@ha
   9726  1.1  christos        *    lwz 0,(got+4)@l(12)         # got[1] address of dl_runtime_resolve
   9727  1.1  christos        *    addi 11,11,(-res_0)@l       # r11 = index * 4
   9728  1.1  christos        *    mtctr 0
   9729  1.1  christos        *    add 0,11,11
   9730  1.1  christos        *    lwz 12,(got+8)@l(12)        # got[2] contains the map address
   9731  1.1  christos        *    add 11,0,11                 # r11 = index * 12 = reloc offset.
   9732  1.1  christos        *    bctr
   9733  1.1  christos        */
   9734  1.1  christos       static const unsigned int plt_resolve[] =
   9735  1.1  christos 	{
   9736  1.1  christos 	  LIS_12,
   9737  1.1  christos 	  ADDIS_11_11,
   9738  1.1  christos 	  LWZ_0_12,
   9739  1.1  christos 	  ADDI_11_11,
   9740  1.1  christos 	  MTCTR_0,
   9741  1.1  christos 	  ADD_0_11_11,
   9742  1.1  christos 	  LWZ_12_12,
   9743  1.1  christos 	  ADD_11_0_11,
   9744  1.1  christos 	  BCTR,
   9745  1.1  christos 	  NOP,
   9746  1.1  christos 	  NOP,
   9747  1.1  christos 	  NOP,
   9748  1.1  christos 	  NOP,
   9749  1.1  christos 	  NOP,
   9750  1.1  christos 	  NOP,
   9751  1.1  christos 	  NOP
   9752  1.1  christos 	};
   9753  1.1  christos 
   9754  1.1  christos       if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4)
   9755  1.1  christos 	abort ();
   9756  1.1  christos       if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4)
   9757  1.1  christos 	abort ();
   9758  1.1  christos 
   9759  1.1  christos       /* Build the branch table, one for each plt entry (less one),
   9760  1.1  christos 	 and perhaps some padding.  */
   9761  1.1  christos       p = htab->glink->contents;
   9762  1.1  christos       p += htab->glink_pltresolve;
   9763  1.1  christos       endp = htab->glink->contents;
   9764  1.1  christos       endp += htab->glink->size - GLINK_PLTRESOLVE;
   9765  1.1  christos       while (p < endp - 8 * 4)
   9766  1.1  christos 	{
   9767  1.1  christos 	  bfd_put_32 (output_bfd, B + endp - p, p);
   9768  1.1  christos 	  p += 4;
   9769  1.1  christos 	}
   9770  1.1  christos       while (p < endp)
   9771  1.1  christos 	{
   9772  1.1  christos 	  bfd_put_32 (output_bfd, NOP, p);
   9773  1.1  christos 	  p += 4;
   9774  1.1  christos 	}
   9775  1.1  christos 
   9776  1.1  christos       res0 = (htab->glink_pltresolve
   9777  1.1  christos 	      + htab->glink->output_section->vma
   9778  1.1  christos 	      + htab->glink->output_offset);
   9779  1.1  christos 
   9780  1.1  christos       /* Last comes the PLTresolve stub.  */
   9781  1.1  christos       if (info->shared)
   9782  1.1  christos 	{
   9783  1.1  christos 	  bfd_vma bcl;
   9784  1.1  christos 
   9785  1.1  christos 	  for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++)
   9786  1.1  christos 	    {
   9787  1.1  christos 	      bfd_put_32 (output_bfd, pic_plt_resolve[i], p);
   9788  1.1  christos 	      p += 4;
   9789  1.1  christos 	    }
   9790  1.1  christos 	  p -= 4 * ARRAY_SIZE (pic_plt_resolve);
   9791  1.1  christos 
   9792  1.1  christos 	  bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4
   9793  1.1  christos 		 + htab->glink->output_section->vma
   9794  1.1  christos 		 + htab->glink->output_offset);
   9795  1.1  christos 
   9796  1.1  christos 	  bfd_put_32 (output_bfd,
   9797  1.1  christos 		      ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4);
   9798  1.1  christos 	  bfd_put_32 (output_bfd,
   9799  1.1  christos 		      ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4);
   9800  1.1  christos 	  bfd_put_32 (output_bfd,
   9801  1.1  christos 		      ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4);
   9802  1.1  christos 	  if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl))
   9803  1.1  christos 	    {
   9804  1.1  christos 	      bfd_put_32 (output_bfd,
   9805  1.1  christos 			  LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
   9806  1.1  christos 	      bfd_put_32 (output_bfd,
   9807  1.1  christos 			  LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4);
   9808  1.1  christos 	    }
   9809  1.1  christos 	  else
   9810  1.1  christos 	    {
   9811  1.1  christos 	      bfd_put_32 (output_bfd,
   9812  1.1  christos 			  LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4);
   9813  1.1  christos 	      bfd_put_32 (output_bfd,
   9814  1.1  christos 			  LWZ_12_12 + 4, p + 9*4);
   9815  1.1  christos 	    }
   9816  1.1  christos 	}
   9817  1.1  christos       else
   9818  1.1  christos 	{
   9819  1.1  christos 	  for (i = 0; i < ARRAY_SIZE (plt_resolve); i++)
   9820  1.1  christos 	    {
   9821  1.1  christos 	      bfd_put_32 (output_bfd, plt_resolve[i], p);
   9822  1.1  christos 	      p += 4;
   9823  1.1  christos 	    }
   9824  1.1  christos 	  p -= 4 * ARRAY_SIZE (plt_resolve);
   9825  1.1  christos 
   9826  1.1  christos 	  bfd_put_32 (output_bfd,
   9827  1.1  christos 		      LIS_12 + PPC_HA (got + 4), p + 0*4);
   9828  1.1  christos 	  bfd_put_32 (output_bfd,
   9829  1.1  christos 		      ADDIS_11_11 + PPC_HA (-res0), p + 1*4);
   9830  1.1  christos 	  bfd_put_32 (output_bfd,
   9831  1.1  christos 		      ADDI_11_11 + PPC_LO (-res0), p + 3*4);
   9832  1.1  christos 	  if (PPC_HA (got + 4) == PPC_HA (got + 8))
   9833  1.1  christos 	    {
   9834  1.1  christos 	      bfd_put_32 (output_bfd,
   9835  1.1  christos 			  LWZ_0_12 + PPC_LO (got + 4), p + 2*4);
   9836  1.1  christos 	      bfd_put_32 (output_bfd,
   9837  1.1  christos 			  LWZ_12_12 + PPC_LO (got + 8), p + 6*4);
   9838  1.1  christos 	    }
   9839  1.1  christos 	  else
   9840  1.1  christos 	    {
   9841  1.1  christos 	      bfd_put_32 (output_bfd,
   9842  1.1  christos 			  LWZU_0_12 + PPC_LO (got + 4), p + 2*4);
   9843  1.1  christos 	      bfd_put_32 (output_bfd,
   9844  1.1  christos 			  LWZ_12_12 + 4, p + 6*4);
   9845  1.1  christos 	    }
   9846  1.1  christos 	}
   9847  1.1  christos     }
   9848  1.1  christos 
   9849  1.1  christos   if (htab->glink_eh_frame != NULL
   9850  1.1  christos       && htab->glink_eh_frame->contents != NULL)
   9851  1.1  christos     {
   9852  1.1  christos       unsigned char *p = htab->glink_eh_frame->contents;
   9853  1.1  christos       bfd_vma val;
   9854  1.1  christos 
   9855  1.1  christos       p += sizeof (glink_eh_frame_cie);
   9856  1.1  christos       /* FDE length.  */
   9857  1.1  christos       p += 4;
   9858  1.1  christos       /* CIE pointer.  */
   9859  1.1  christos       p += 4;
   9860  1.1  christos       /* Offset to .glink.  */
   9861  1.1  christos       val = (htab->glink->output_section->vma
   9862  1.1  christos 	     + htab->glink->output_offset);
   9863  1.1  christos       val -= (htab->glink_eh_frame->output_section->vma
   9864  1.1  christos 	      + htab->glink_eh_frame->output_offset);
   9865  1.1  christos       val -= p - htab->glink_eh_frame->contents;
   9866  1.1  christos       bfd_put_32 (htab->elf.dynobj, val, p);
   9867  1.1  christos 
   9868  1.1  christos       if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME
   9869  1.1  christos 	  && !_bfd_elf_write_section_eh_frame (output_bfd, info,
   9870  1.1  christos 					       htab->glink_eh_frame,
   9871  1.1  christos 					       htab->glink_eh_frame->contents))
   9872  1.1  christos 	return FALSE;
   9873  1.1  christos     }
   9874  1.1  christos 
   9875  1.1  christos   return ret;
   9876  1.1  christos }
   9877  1.1  christos 
   9878  1.1  christos #define TARGET_LITTLE_SYM	bfd_elf32_powerpcle_vec
   9880  1.1  christos #define TARGET_LITTLE_NAME	"elf32-powerpcle"
   9881  1.1  christos #define TARGET_BIG_SYM		bfd_elf32_powerpc_vec
   9882  1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc"
   9883  1.1  christos #define ELF_ARCH		bfd_arch_powerpc
   9884  1.1  christos #define ELF_TARGET_ID		PPC32_ELF_DATA
   9885  1.1  christos #define ELF_MACHINE_CODE	EM_PPC
   9886  1.1  christos #ifdef __QNXTARGET__
   9887  1.1  christos #define ELF_MAXPAGESIZE		0x1000
   9888  1.1  christos #else
   9889  1.1  christos #define ELF_MAXPAGESIZE		0x10000
   9890  1.1  christos #endif
   9891  1.1  christos #define ELF_MINPAGESIZE		0x1000
   9892  1.1  christos #define ELF_COMMONPAGESIZE	0x1000
   9893  1.1  christos #define elf_info_to_howto	ppc_elf_info_to_howto
   9894  1.1  christos 
   9895  1.1  christos #ifdef  EM_CYGNUS_POWERPC
   9896  1.1  christos #define ELF_MACHINE_ALT1	EM_CYGNUS_POWERPC
   9897  1.1  christos #endif
   9898  1.1  christos 
   9899  1.1  christos #ifdef EM_PPC_OLD
   9900  1.1  christos #define ELF_MACHINE_ALT2	EM_PPC_OLD
   9901  1.1  christos #endif
   9902  1.1  christos 
   9903  1.1  christos #define elf_backend_plt_not_loaded	1
   9904  1.1  christos #define elf_backend_can_gc_sections	1
   9905  1.1  christos #define elf_backend_can_refcount	1
   9906  1.1  christos #define elf_backend_rela_normal		1
   9907  1.1  christos 
   9908  1.1  christos #define bfd_elf32_mkobject			ppc_elf_mkobject
   9909  1.1  christos #define bfd_elf32_bfd_merge_private_bfd_data	ppc_elf_merge_private_bfd_data
   9910  1.1  christos #define bfd_elf32_bfd_relax_section		ppc_elf_relax_section
   9911  1.1  christos #define bfd_elf32_bfd_reloc_type_lookup		ppc_elf_reloc_type_lookup
   9912  1.1  christos #define bfd_elf32_bfd_reloc_name_lookup		ppc_elf_reloc_name_lookup
   9913  1.1  christos #define bfd_elf32_bfd_set_private_flags		ppc_elf_set_private_flags
   9914  1.1  christos #define bfd_elf32_bfd_link_hash_table_create	ppc_elf_link_hash_table_create
   9915  1.1  christos #define bfd_elf32_get_synthetic_symtab		ppc_elf_get_synthetic_symtab
   9916  1.1  christos 
   9917  1.1  christos #define elf_backend_object_p			ppc_elf_object_p
   9918  1.1  christos #define elf_backend_gc_mark_hook		ppc_elf_gc_mark_hook
   9919  1.1  christos #define elf_backend_gc_sweep_hook		ppc_elf_gc_sweep_hook
   9920  1.1  christos #define elf_backend_section_from_shdr		ppc_elf_section_from_shdr
   9921  1.1  christos #define elf_backend_relocate_section		ppc_elf_relocate_section
   9922  1.1  christos #define elf_backend_create_dynamic_sections	ppc_elf_create_dynamic_sections
   9923  1.1  christos #define elf_backend_check_relocs		ppc_elf_check_relocs
   9924  1.1  christos #define elf_backend_copy_indirect_symbol	ppc_elf_copy_indirect_symbol
   9925  1.1  christos #define elf_backend_adjust_dynamic_symbol	ppc_elf_adjust_dynamic_symbol
   9926  1.1  christos #define elf_backend_add_symbol_hook		ppc_elf_add_symbol_hook
   9927  1.1  christos #define elf_backend_size_dynamic_sections	ppc_elf_size_dynamic_sections
   9928  1.1  christos #define elf_backend_hash_symbol			ppc_elf_hash_symbol
   9929  1.1  christos #define elf_backend_finish_dynamic_symbol	ppc_elf_finish_dynamic_symbol
   9930  1.1  christos #define elf_backend_finish_dynamic_sections	ppc_elf_finish_dynamic_sections
   9931  1.1  christos #define elf_backend_fake_sections		ppc_elf_fake_sections
   9932  1.1  christos #define elf_backend_additional_program_headers	ppc_elf_additional_program_headers
   9933  1.1  christos #define elf_backend_modify_segment_map     	ppc_elf_modify_segment_map
   9934  1.1  christos #define elf_backend_grok_prstatus		ppc_elf_grok_prstatus
   9935  1.1  christos #define elf_backend_grok_psinfo			ppc_elf_grok_psinfo
   9936  1.1  christos #define elf_backend_write_core_note		ppc_elf_write_core_note
   9937  1.1  christos #define elf_backend_reloc_type_class		ppc_elf_reloc_type_class
   9938  1.1  christos #define elf_backend_begin_write_processing	ppc_elf_begin_write_processing
   9939  1.1  christos #define elf_backend_final_write_processing	ppc_elf_final_write_processing
   9940  1.1  christos #define elf_backend_write_section		ppc_elf_write_section
   9941  1.1  christos #define elf_backend_get_sec_type_attr		ppc_elf_get_sec_type_attr
   9942  1.1  christos #define elf_backend_plt_sym_val			ppc_elf_plt_sym_val
   9943  1.1  christos #define elf_backend_action_discarded		ppc_elf_action_discarded
   9944  1.1  christos #define elf_backend_init_index_section		_bfd_elf_init_1_index_section
   9945  1.1  christos #define elf_backend_lookup_section_flags_hook	ppc_elf_lookup_section_flags
   9946  1.1  christos #define elf_backend_section_processing		ppc_elf_section_processing
   9947  1.1  christos 
   9948  1.1  christos #include "elf32-target.h"
   9949  1.1  christos 
   9950  1.1  christos /* FreeBSD Target */
   9951  1.1  christos 
   9952  1.1  christos #undef  TARGET_LITTLE_SYM
   9953  1.1  christos #undef  TARGET_LITTLE_NAME
   9954  1.1  christos 
   9955  1.1  christos #undef  TARGET_BIG_SYM
   9956  1.1  christos #define TARGET_BIG_SYM  bfd_elf32_powerpc_freebsd_vec
   9957  1.1  christos #undef  TARGET_BIG_NAME
   9958  1.1  christos #define TARGET_BIG_NAME "elf32-powerpc-freebsd"
   9959  1.1  christos 
   9960  1.1  christos #undef  ELF_OSABI
   9961  1.1  christos #define ELF_OSABI	ELFOSABI_FREEBSD
   9962  1.1  christos 
   9963  1.1  christos #undef  elf32_bed
   9964  1.1  christos #define elf32_bed	elf32_powerpc_fbsd_bed
   9965  1.1  christos 
   9966  1.1  christos #include "elf32-target.h"
   9967  1.1  christos 
   9968  1.1  christos /* VxWorks Target */
   9969  1.1  christos 
   9970  1.1  christos #undef TARGET_LITTLE_SYM
   9971  1.1  christos #undef TARGET_LITTLE_NAME
   9972  1.1  christos 
   9973  1.1  christos #undef TARGET_BIG_SYM
   9974  1.1  christos #define TARGET_BIG_SYM		bfd_elf32_powerpc_vxworks_vec
   9975  1.1  christos #undef TARGET_BIG_NAME
   9976  1.1  christos #define TARGET_BIG_NAME		"elf32-powerpc-vxworks"
   9977  1.1  christos 
   9978  1.1  christos #undef  ELF_OSABI
   9979  1.1  christos 
   9980  1.1  christos /* VxWorks uses the elf default section flags for .plt.  */
   9981  1.1  christos static const struct bfd_elf_special_section *
   9982  1.1  christos ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
   9983  1.1  christos {
   9984  1.1  christos   if (sec->name == NULL)
   9985  1.1  christos     return NULL;
   9986  1.1  christos 
   9987  1.1  christos   if (strcmp (sec->name, ".plt") == 0)
   9988  1.1  christos     return _bfd_elf_get_sec_type_attr (abfd, sec);
   9989  1.1  christos 
   9990  1.1  christos   return ppc_elf_get_sec_type_attr (abfd, sec);
   9991  1.1  christos }
   9992  1.1  christos 
   9993  1.1  christos /* Like ppc_elf_link_hash_table_create, but overrides
   9994  1.1  christos    appropriately for VxWorks.  */
   9995  1.1  christos static struct bfd_link_hash_table *
   9996  1.1  christos ppc_elf_vxworks_link_hash_table_create (bfd *abfd)
   9997  1.1  christos {
   9998  1.1  christos   struct bfd_link_hash_table *ret;
   9999  1.1  christos 
   10000  1.1  christos   ret = ppc_elf_link_hash_table_create (abfd);
   10001  1.1  christos   if (ret)
   10002  1.1  christos     {
   10003  1.1  christos       struct ppc_elf_link_hash_table *htab
   10004  1.1  christos         = (struct ppc_elf_link_hash_table *)ret;
   10005  1.1  christos       htab->is_vxworks = 1;
   10006  1.1  christos       htab->plt_type = PLT_VXWORKS;
   10007  1.1  christos       htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE;
   10008  1.1  christos       htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE;
   10009  1.1  christos       htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE;
   10010  1.1  christos     }
   10011  1.1  christos   return ret;
   10012  1.1  christos }
   10013  1.1  christos 
   10014  1.1  christos /* Tweak magic VxWorks symbols as they are loaded.  */
   10015  1.1  christos static bfd_boolean
   10016  1.1  christos ppc_elf_vxworks_add_symbol_hook (bfd *abfd,
   10017  1.1  christos 				 struct bfd_link_info *info,
   10018  1.1  christos 				 Elf_Internal_Sym *sym,
   10019  1.1  christos 				 const char **namep ATTRIBUTE_UNUSED,
   10020  1.1  christos 				 flagword *flagsp ATTRIBUTE_UNUSED,
   10021  1.1  christos 				 asection **secp,
   10022  1.1  christos 				 bfd_vma *valp)
   10023  1.1  christos {
   10024  1.1  christos   if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp,
   10025  1.1  christos 				   valp))
   10026  1.1  christos     return FALSE;
   10027  1.1  christos 
   10028  1.1  christos   return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp);
   10029  1.1  christos }
   10030  1.1  christos 
   10031  1.1  christos static void
   10032  1.1  christos ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
   10033  1.1  christos {
   10034  1.1  christos   ppc_elf_final_write_processing(abfd, linker);
   10035  1.1  christos   elf_vxworks_final_write_processing(abfd, linker);
   10036  1.1  christos }
   10037  1.1  christos 
   10038  1.1  christos /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so
   10039  1.1  christos    define it.  */
   10040  1.1  christos #undef elf_backend_want_plt_sym
   10041  1.1  christos #define elf_backend_want_plt_sym		1
   10042  1.1  christos #undef elf_backend_want_got_plt
   10043  1.1  christos #define elf_backend_want_got_plt		1
   10044  1.1  christos #undef elf_backend_got_symbol_offset
   10045  1.1  christos #define elf_backend_got_symbol_offset		0
   10046  1.1  christos #undef elf_backend_plt_not_loaded
   10047  1.1  christos #define elf_backend_plt_not_loaded		0
   10048  1.1  christos #undef elf_backend_plt_readonly
   10049  1.1  christos #define elf_backend_plt_readonly		1
   10050  1.1  christos #undef elf_backend_got_header_size
   10051  1.1  christos #define elf_backend_got_header_size		12
   10052  1.1  christos 
   10053  1.1  christos #undef bfd_elf32_get_synthetic_symtab
   10054  1.1  christos 
   10055  1.1  christos #undef bfd_elf32_bfd_link_hash_table_create
   10056  1.1  christos #define bfd_elf32_bfd_link_hash_table_create \
   10057  1.1  christos   ppc_elf_vxworks_link_hash_table_create
   10058  1.1  christos #undef elf_backend_add_symbol_hook
   10059                #define elf_backend_add_symbol_hook \
   10060                  ppc_elf_vxworks_add_symbol_hook
   10061                #undef elf_backend_link_output_symbol_hook
   10062                #define elf_backend_link_output_symbol_hook \
   10063                  elf_vxworks_link_output_symbol_hook
   10064                #undef elf_backend_final_write_processing
   10065                #define elf_backend_final_write_processing \
   10066                  ppc_elf_vxworks_final_write_processing
   10067                #undef elf_backend_get_sec_type_attr
   10068                #define elf_backend_get_sec_type_attr \
   10069                  ppc_elf_vxworks_get_sec_type_attr
   10070                #undef elf_backend_emit_relocs
   10071                #define elf_backend_emit_relocs \
   10072                  elf_vxworks_emit_relocs
   10073                
   10074                #undef elf32_bed
   10075                #define elf32_bed				ppc_elf_vxworks_bed
   10076                #undef elf_backend_post_process_headers
   10077                
   10078                #include "elf32-target.h"
   10079