elfxx-sparc.c revision 1.19 1 1.1 skrll /* SPARC-specific support for ELF
2 1.19 christos Copyright (C) 2005-2026 Free Software Foundation, Inc.
3 1.1 skrll
4 1.1 skrll This file is part of BFD, the Binary File Descriptor library.
5 1.1 skrll
6 1.1 skrll This program is free software; you can redistribute it and/or modify
7 1.1 skrll it under the terms of the GNU General Public License as published by
8 1.1 skrll the Free Software Foundation; either version 3 of the License, or
9 1.1 skrll (at your option) any later version.
10 1.1 skrll
11 1.1 skrll This program is distributed in the hope that it will be useful,
12 1.1 skrll but WITHOUT ANY WARRANTY; without even the implied warranty of
13 1.1 skrll MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 1.1 skrll GNU General Public License for more details.
15 1.1 skrll
16 1.1 skrll You should have received a copy of the GNU General Public License
17 1.1 skrll along with this program; if not, write to the Free Software
18 1.1 skrll Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 1.1 skrll MA 02110-1301, USA. */
20 1.1 skrll
21 1.1 skrll
22 1.1 skrll /* This file handles functionality common to the different SPARC ABI's. */
23 1.1 skrll
24 1.1 skrll #include "sysdep.h"
25 1.1 skrll #include "bfd.h"
26 1.1 skrll #include "bfdlink.h"
27 1.1 skrll #include "libbfd.h"
28 1.1 skrll #include "libiberty.h"
29 1.1 skrll #include "elf-bfd.h"
30 1.1 skrll #include "elf/sparc.h"
31 1.1 skrll #include "opcode/sparc.h"
32 1.1 skrll #include "elfxx-sparc.h"
33 1.1 skrll #include "elf-vxworks.h"
34 1.3 christos #include "objalloc.h"
35 1.3 christos #include "hashtab.h"
36 1.1 skrll
37 1.1 skrll /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38 1.1 skrll #define MINUS_ONE (~ (bfd_vma) 0)
39 1.1 skrll
40 1.1 skrll /* The relocation "howto" table. */
41 1.1 skrll
42 1.1 skrll /* Utility for performing the standard initial work of an instruction
43 1.1 skrll relocation.
44 1.1 skrll *PRELOCATION will contain the relocated item.
45 1.1 skrll *PINSN will contain the instruction from the input stream.
46 1.1 skrll If the result is `bfd_reloc_other' the caller can continue with
47 1.1 skrll performing the relocation. Otherwise it must stop and return the
48 1.1 skrll value to its caller. */
49 1.1 skrll
50 1.1 skrll static bfd_reloc_status_type
51 1.1 skrll init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
52 1.6 christos void * data, asection *input_section, bfd *output_bfd,
53 1.1 skrll bfd_vma *prelocation, bfd_vma *pinsn)
54 1.1 skrll {
55 1.1 skrll bfd_vma relocation;
56 1.1 skrll reloc_howto_type *howto = reloc_entry->howto;
57 1.1 skrll
58 1.1 skrll if (output_bfd != (bfd *) NULL
59 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
60 1.1 skrll && (! howto->partial_inplace
61 1.1 skrll || reloc_entry->addend == 0))
62 1.1 skrll {
63 1.1 skrll reloc_entry->address += input_section->output_offset;
64 1.1 skrll return bfd_reloc_ok;
65 1.1 skrll }
66 1.1 skrll
67 1.1 skrll /* This works because partial_inplace is FALSE. */
68 1.1 skrll if (output_bfd != NULL)
69 1.1 skrll return bfd_reloc_continue;
70 1.1 skrll
71 1.1 skrll if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
72 1.1 skrll return bfd_reloc_outofrange;
73 1.1 skrll
74 1.1 skrll relocation = (symbol->value
75 1.1 skrll + symbol->section->output_section->vma
76 1.1 skrll + symbol->section->output_offset);
77 1.1 skrll relocation += reloc_entry->addend;
78 1.1 skrll if (howto->pc_relative)
79 1.1 skrll {
80 1.1 skrll relocation -= (input_section->output_section->vma
81 1.1 skrll + input_section->output_offset);
82 1.1 skrll relocation -= reloc_entry->address;
83 1.1 skrll }
84 1.1 skrll
85 1.1 skrll *prelocation = relocation;
86 1.1 skrll *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
87 1.1 skrll return bfd_reloc_other;
88 1.1 skrll }
89 1.1 skrll
90 1.1 skrll /* For unsupported relocs. */
91 1.1 skrll
92 1.1 skrll static bfd_reloc_status_type
93 1.1 skrll sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
94 1.1 skrll arelent *reloc_entry ATTRIBUTE_UNUSED,
95 1.1 skrll asymbol *symbol ATTRIBUTE_UNUSED,
96 1.6 christos void * data ATTRIBUTE_UNUSED,
97 1.1 skrll asection *input_section ATTRIBUTE_UNUSED,
98 1.1 skrll bfd *output_bfd ATTRIBUTE_UNUSED,
99 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
100 1.1 skrll {
101 1.1 skrll return bfd_reloc_notsupported;
102 1.1 skrll }
103 1.1 skrll
104 1.1 skrll /* Handle the WDISP16 reloc. */
105 1.1 skrll
106 1.1 skrll static bfd_reloc_status_type
107 1.1 skrll sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
108 1.6 christos void * data, asection *input_section, bfd *output_bfd,
109 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
110 1.1 skrll {
111 1.1 skrll bfd_vma relocation;
112 1.1 skrll bfd_vma insn;
113 1.1 skrll bfd_reloc_status_type status;
114 1.1 skrll
115 1.1 skrll status = init_insn_reloc (abfd, reloc_entry, symbol, data,
116 1.1 skrll input_section, output_bfd, &relocation, &insn);
117 1.1 skrll if (status != bfd_reloc_other)
118 1.1 skrll return status;
119 1.1 skrll
120 1.1 skrll insn &= ~ (bfd_vma) 0x303fff;
121 1.1 skrll insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
122 1.1 skrll bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
123 1.1 skrll
124 1.1 skrll if ((bfd_signed_vma) relocation < - 0x40000
125 1.1 skrll || (bfd_signed_vma) relocation > 0x3ffff)
126 1.1 skrll return bfd_reloc_overflow;
127 1.1 skrll else
128 1.1 skrll return bfd_reloc_ok;
129 1.1 skrll }
130 1.1 skrll
131 1.6 christos /* Handle the WDISP10 reloc. */
132 1.6 christos
133 1.6 christos static bfd_reloc_status_type
134 1.6 christos sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
135 1.6 christos void * data, asection *input_section, bfd *output_bfd,
136 1.6 christos char **error_message ATTRIBUTE_UNUSED)
137 1.6 christos {
138 1.6 christos bfd_vma relocation;
139 1.6 christos bfd_vma insn;
140 1.6 christos bfd_reloc_status_type status;
141 1.6 christos
142 1.6 christos status = init_insn_reloc (abfd, reloc_entry, symbol, data,
143 1.6 christos input_section, output_bfd, &relocation, &insn);
144 1.6 christos if (status != bfd_reloc_other)
145 1.6 christos return status;
146 1.6 christos
147 1.6 christos insn &= ~ (bfd_vma) 0x181fe0;
148 1.6 christos insn |= (((relocation >> 2) & 0x300) << 11)
149 1.6 christos | (((relocation >> 2) & 0xff) << 5);
150 1.6 christos bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
151 1.6 christos
152 1.6 christos if ((bfd_signed_vma) relocation < - 0x1000
153 1.6 christos || (bfd_signed_vma) relocation > 0xfff)
154 1.6 christos return bfd_reloc_overflow;
155 1.6 christos else
156 1.6 christos return bfd_reloc_ok;
157 1.6 christos }
158 1.6 christos
159 1.1 skrll /* Handle the HIX22 reloc. */
160 1.1 skrll
161 1.1 skrll static bfd_reloc_status_type
162 1.1 skrll sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
163 1.6 christos void * data, asection *input_section, bfd *output_bfd,
164 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
165 1.1 skrll {
166 1.1 skrll bfd_vma relocation;
167 1.1 skrll bfd_vma insn;
168 1.1 skrll bfd_reloc_status_type status;
169 1.1 skrll
170 1.1 skrll status = init_insn_reloc (abfd, reloc_entry, symbol, data,
171 1.1 skrll input_section, output_bfd, &relocation, &insn);
172 1.1 skrll if (status != bfd_reloc_other)
173 1.1 skrll return status;
174 1.1 skrll
175 1.1 skrll relocation ^= MINUS_ONE;
176 1.1 skrll insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
177 1.1 skrll bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
178 1.1 skrll
179 1.1 skrll if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
180 1.1 skrll return bfd_reloc_overflow;
181 1.1 skrll else
182 1.1 skrll return bfd_reloc_ok;
183 1.1 skrll }
184 1.1 skrll
185 1.1 skrll /* Handle the LOX10 reloc. */
186 1.1 skrll
187 1.1 skrll static bfd_reloc_status_type
188 1.1 skrll sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
189 1.6 christos void * data, asection *input_section, bfd *output_bfd,
190 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
191 1.1 skrll {
192 1.1 skrll bfd_vma relocation;
193 1.1 skrll bfd_vma insn;
194 1.1 skrll bfd_reloc_status_type status;
195 1.1 skrll
196 1.1 skrll status = init_insn_reloc (abfd, reloc_entry, symbol, data,
197 1.1 skrll input_section, output_bfd, &relocation, &insn);
198 1.1 skrll if (status != bfd_reloc_other)
199 1.1 skrll return status;
200 1.1 skrll
201 1.1 skrll insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
202 1.1 skrll bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
203 1.1 skrll
204 1.1 skrll return bfd_reloc_ok;
205 1.1 skrll }
206 1.1 skrll
207 1.1 skrll static reloc_howto_type _bfd_sparc_elf_howto_table[] =
208 1.1 skrll {
209 1.16 christos HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
210 1.16 christos HOWTO(R_SPARC_8, 0,1, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true),
211 1.16 christos HOWTO(R_SPARC_16, 0,2,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true),
212 1.16 christos HOWTO(R_SPARC_32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true),
213 1.16 christos HOWTO(R_SPARC_DISP8, 0,1, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true),
214 1.16 christos HOWTO(R_SPARC_DISP16, 0,2,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true),
215 1.16 christos HOWTO(R_SPARC_DISP32, 0,4,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0xffffffff,true),
216 1.16 christos HOWTO(R_SPARC_WDISP30, 2,4,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true),
217 1.16 christos HOWTO(R_SPARC_WDISP22, 2,4,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true),
218 1.16 christos HOWTO(R_SPARC_HI22, 10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true),
219 1.16 christos HOWTO(R_SPARC_22, 0,4,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true),
220 1.16 christos HOWTO(R_SPARC_13, 0,4,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true),
221 1.16 christos HOWTO(R_SPARC_LO10, 0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true),
222 1.16 christos HOWTO(R_SPARC_GOT10, 0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true),
223 1.16 christos HOWTO(R_SPARC_GOT13, 0,4,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true),
224 1.16 christos HOWTO(R_SPARC_GOT22, 10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true),
225 1.16 christos HOWTO(R_SPARC_PC10, 0,4,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true),
226 1.16 christos HOWTO(R_SPARC_PC22, 10,4,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true),
227 1.16 christos HOWTO(R_SPARC_WPLT30, 2,4,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true),
228 1.16 christos HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true),
229 1.16 christos HOWTO(R_SPARC_GLOB_DAT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",false,0,0x00000000,true),
230 1.16 christos HOWTO(R_SPARC_JMP_SLOT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",false,0,0x00000000,true),
231 1.16 christos HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true),
232 1.16 christos HOWTO(R_SPARC_UA32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0xffffffff,true),
233 1.16 christos HOWTO(R_SPARC_PLT32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", false,0,0xffffffff,true),
234 1.16 christos HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true),
235 1.16 christos HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true),
236 1.16 christos HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true),
237 1.16 christos HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true),
238 1.16 christos HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true),
239 1.16 christos HOWTO(R_SPARC_10, 0,4,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true),
240 1.16 christos HOWTO(R_SPARC_11, 0,4,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true),
241 1.16 christos HOWTO(R_SPARC_64, 0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,MINUS_ONE, true),
242 1.16 christos HOWTO(R_SPARC_OLO10, 0,4,13,false,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", false,0,0x00001fff,true),
243 1.16 christos HOWTO(R_SPARC_HH22, 42,4,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true),
244 1.16 christos HOWTO(R_SPARC_HM10, 32,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true),
245 1.16 christos HOWTO(R_SPARC_LM22, 10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true),
246 1.16 christos HOWTO(R_SPARC_PC_HH22, 42,4,22,true, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", false,0,0x003fffff,true),
247 1.16 christos HOWTO(R_SPARC_PC_HM10, 32,4,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", false,0,0x000003ff,true),
248 1.16 christos HOWTO(R_SPARC_PC_LM22, 10,4,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", false,0,0x003fffff,true),
249 1.16 christos HOWTO(R_SPARC_WDISP16, 2,4,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true),
250 1.16 christos HOWTO(R_SPARC_WDISP19, 2,4,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true),
251 1.16 christos HOWTO(R_SPARC_UNUSED_42, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",false,0,0x00000000,true),
252 1.16 christos HOWTO(R_SPARC_7, 0,4, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true),
253 1.16 christos HOWTO(R_SPARC_5, 0,4, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true),
254 1.16 christos HOWTO(R_SPARC_6, 0,4, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true),
255 1.16 christos HOWTO(R_SPARC_DISP64, 0,8,64,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", false,0,MINUS_ONE, true),
256 1.16 christos HOWTO(R_SPARC_PLT64, 0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", false,0,MINUS_ONE, true),
257 1.16 christos HOWTO(R_SPARC_HIX22, 0,8, 0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", false,0,MINUS_ONE, false),
258 1.16 christos HOWTO(R_SPARC_LOX10, 0,8, 0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", false,0,MINUS_ONE, false),
259 1.16 christos HOWTO(R_SPARC_H44, 22,4,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", false,0,0x003fffff,false),
260 1.16 christos HOWTO(R_SPARC_M44, 12,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", false,0,0x000003ff,false),
261 1.16 christos HOWTO(R_SPARC_L44, 0,4,13,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", false,0,0x00000fff,false),
262 1.16 christos HOWTO(R_SPARC_REGISTER, 0,8, 0,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",false,0,MINUS_ONE, false),
263 1.16 christos HOWTO(R_SPARC_UA64, 0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", false,0,MINUS_ONE, true),
264 1.16 christos HOWTO(R_SPARC_UA16, 0,2,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", false,0,0x0000ffff,true),
265 1.16 christos HOWTO(R_SPARC_TLS_GD_HI22,10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",false,0,0x003fffff,true),
266 1.16 christos HOWTO(R_SPARC_TLS_GD_LO10,0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",false,0,0x000003ff,true),
267 1.16 christos HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",false,0,0x00000000,true),
268 1.16 christos HOWTO(R_SPARC_TLS_GD_CALL,2,4,30,true,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",false,0,0x3fffffff,true),
269 1.16 christos HOWTO(R_SPARC_TLS_LDM_HI22,10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",false,0,0x003fffff,true),
270 1.16 christos HOWTO(R_SPARC_TLS_LDM_LO10,0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",false,0,0x000003ff,true),
271 1.16 christos HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",false,0,0x00000000,true),
272 1.16 christos HOWTO(R_SPARC_TLS_LDM_CALL,2,4,30,true,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",false,0,0x3fffffff,true),
273 1.16 christos HOWTO(R_SPARC_TLS_LDO_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",false,0,0x003fffff, false),
274 1.16 christos HOWTO(R_SPARC_TLS_LDO_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",false,0,0x000003ff, false),
275 1.16 christos HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",false,0,0x00000000,true),
276 1.16 christos HOWTO(R_SPARC_TLS_IE_HI22,10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",false,0,0x003fffff,true),
277 1.16 christos HOWTO(R_SPARC_TLS_IE_LO10,0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",false,0,0x000003ff,true),
278 1.16 christos HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",false,0,0x00000000,true),
279 1.16 christos HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",false,0,0x00000000,true),
280 1.16 christos HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",false,0,0x00000000,true),
281 1.16 christos HOWTO(R_SPARC_TLS_LE_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",false,0,0x003fffff, false),
282 1.16 christos HOWTO(R_SPARC_TLS_LE_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",false,0,0x000003ff, false),
283 1.16 christos HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",false,0,0x00000000,true),
284 1.16 christos HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",false,0,0x00000000,true),
285 1.16 christos HOWTO(R_SPARC_TLS_DTPOFF32,0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",false,0,0xffffffff,true),
286 1.16 christos HOWTO(R_SPARC_TLS_DTPOFF64,0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",false,0,MINUS_ONE,true),
287 1.16 christos HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",false,0,0x00000000,true),
288 1.16 christos HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",false,0,0x00000000,true),
289 1.16 christos HOWTO(R_SPARC_GOTDATA_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",false,0,0x003fffff, false),
290 1.16 christos HOWTO(R_SPARC_GOTDATA_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",false,0,0x000003ff, false),
291 1.16 christos HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",false,0,0x003fffff, false),
292 1.16 christos HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",false,0,0x000003ff, false),
293 1.16 christos HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",false,0,0x00000000,true),
294 1.16 christos HOWTO(R_SPARC_H34,12,4,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",false,0,0x003fffff,false),
295 1.16 christos HOWTO(R_SPARC_SIZE32,0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",false,0,0xffffffff,true),
296 1.16 christos HOWTO(R_SPARC_SIZE64,0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",false,0,MINUS_ONE, true),
297 1.16 christos HOWTO(R_SPARC_WDISP10,2,4,10,true, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",false,0,0x00000000,true),
298 1.1 skrll };
299 1.3 christos static reloc_howto_type sparc_jmp_irel_howto =
300 1.16 christos HOWTO(R_SPARC_JMP_IREL, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",false,0,0x00000000,true);
301 1.3 christos static reloc_howto_type sparc_irelative_howto =
302 1.16 christos HOWTO(R_SPARC_IRELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",false,0,0x00000000,true);
303 1.1 skrll static reloc_howto_type sparc_vtinherit_howto =
304 1.16 christos HOWTO (R_SPARC_GNU_VTINHERIT, 0,4,0,false,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", false,0, 0, false);
305 1.1 skrll static reloc_howto_type sparc_vtentry_howto =
306 1.16 christos HOWTO (R_SPARC_GNU_VTENTRY, 0,4,0,false,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", false,0,0, false);
307 1.1 skrll static reloc_howto_type sparc_rev32_howto =
308 1.16 christos HOWTO(R_SPARC_REV32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", false,0,0xffffffff,true);
309 1.1 skrll
310 1.1 skrll reloc_howto_type *
311 1.14 christos _bfd_sparc_elf_reloc_type_lookup (bfd *abfd,
312 1.1 skrll bfd_reloc_code_real_type code)
313 1.1 skrll {
314 1.3 christos /* We explicitly handle each relocation type in the switch
315 1.3 christos instead of using a lookup table for efficiency. */
316 1.1 skrll switch (code)
317 1.1 skrll {
318 1.3 christos case BFD_RELOC_NONE:
319 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
320 1.3 christos
321 1.3 christos case BFD_RELOC_8:
322 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_8];
323 1.3 christos
324 1.3 christos case BFD_RELOC_16:
325 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_16];
326 1.3 christos
327 1.3 christos case BFD_RELOC_32:
328 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_32];
329 1.3 christos
330 1.3 christos case BFD_RELOC_8_PCREL:
331 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
332 1.3 christos
333 1.3 christos case BFD_RELOC_16_PCREL:
334 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
335 1.3 christos
336 1.3 christos case BFD_RELOC_32_PCREL:
337 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
338 1.3 christos
339 1.3 christos case BFD_RELOC_32_PCREL_S2:
340 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
341 1.3 christos
342 1.3 christos case BFD_RELOC_SPARC_WDISP22:
343 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
344 1.3 christos
345 1.3 christos case BFD_RELOC_HI22:
346 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
347 1.3 christos
348 1.3 christos case BFD_RELOC_SPARC22:
349 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_22];
350 1.3 christos
351 1.3 christos case BFD_RELOC_SPARC13:
352 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_13];
353 1.3 christos
354 1.3 christos case BFD_RELOC_LO10:
355 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
356 1.3 christos
357 1.3 christos case BFD_RELOC_SPARC_GOT10:
358 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
359 1.3 christos
360 1.3 christos case BFD_RELOC_SPARC_GOT13:
361 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
362 1.3 christos
363 1.3 christos case BFD_RELOC_SPARC_GOT22:
364 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
365 1.3 christos
366 1.3 christos case BFD_RELOC_SPARC_PC10:
367 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
368 1.3 christos
369 1.3 christos case BFD_RELOC_SPARC_PC22:
370 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
371 1.3 christos
372 1.3 christos case BFD_RELOC_SPARC_WPLT30:
373 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
374 1.3 christos
375 1.19 christos case BFD_RELOC_COPY:
376 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
377 1.3 christos
378 1.19 christos case BFD_RELOC_GLOB_DAT:
379 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
380 1.3 christos
381 1.19 christos case BFD_RELOC_JMP_SLOT:
382 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
383 1.3 christos
384 1.19 christos case BFD_RELOC_RELATIVE:
385 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
386 1.3 christos
387 1.3 christos case BFD_RELOC_SPARC_UA32:
388 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
389 1.3 christos
390 1.19 christos case BFD_RELOC_32_PLT_PCREL:
391 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
392 1.3 christos
393 1.3 christos case BFD_RELOC_SPARC_10:
394 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_10];
395 1.3 christos
396 1.3 christos case BFD_RELOC_SPARC_11:
397 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_11];
398 1.3 christos
399 1.3 christos case BFD_RELOC_SPARC_64:
400 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_64];
401 1.3 christos
402 1.3 christos case BFD_RELOC_SPARC_OLO10:
403 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
404 1.3 christos
405 1.3 christos case BFD_RELOC_SPARC_HH22:
406 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
407 1.3 christos
408 1.3 christos case BFD_RELOC_SPARC_HM10:
409 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
410 1.3 christos
411 1.3 christos case BFD_RELOC_SPARC_LM22:
412 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
413 1.3 christos
414 1.3 christos case BFD_RELOC_SPARC_PC_HH22:
415 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
416 1.3 christos
417 1.3 christos case BFD_RELOC_SPARC_PC_HM10:
418 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
419 1.3 christos
420 1.3 christos case BFD_RELOC_SPARC_PC_LM22:
421 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
422 1.3 christos
423 1.3 christos case BFD_RELOC_SPARC_WDISP16:
424 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
425 1.3 christos
426 1.3 christos case BFD_RELOC_SPARC_WDISP19:
427 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
428 1.3 christos
429 1.3 christos case BFD_RELOC_SPARC_7:
430 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_7];
431 1.3 christos
432 1.3 christos case BFD_RELOC_SPARC_5:
433 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_5];
434 1.3 christos
435 1.3 christos case BFD_RELOC_SPARC_6:
436 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_6];
437 1.3 christos
438 1.3 christos case BFD_RELOC_SPARC_DISP64:
439 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
440 1.3 christos
441 1.19 christos case BFD_RELOC_64_PLT_PCREL:
442 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
443 1.3 christos
444 1.3 christos case BFD_RELOC_SPARC_HIX22:
445 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
446 1.3 christos
447 1.3 christos case BFD_RELOC_SPARC_LOX10:
448 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
449 1.3 christos
450 1.3 christos case BFD_RELOC_SPARC_H44:
451 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
452 1.3 christos
453 1.3 christos case BFD_RELOC_SPARC_M44:
454 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
455 1.3 christos
456 1.3 christos case BFD_RELOC_SPARC_L44:
457 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
458 1.3 christos
459 1.3 christos case BFD_RELOC_SPARC_REGISTER:
460 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
461 1.3 christos
462 1.3 christos case BFD_RELOC_SPARC_UA64:
463 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
464 1.3 christos
465 1.3 christos case BFD_RELOC_SPARC_UA16:
466 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
467 1.3 christos
468 1.3 christos case BFD_RELOC_SPARC_TLS_GD_HI22:
469 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
470 1.3 christos
471 1.3 christos case BFD_RELOC_SPARC_TLS_GD_LO10:
472 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
473 1.3 christos
474 1.3 christos case BFD_RELOC_SPARC_TLS_GD_ADD:
475 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
476 1.3 christos
477 1.3 christos case BFD_RELOC_SPARC_TLS_GD_CALL:
478 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
479 1.3 christos
480 1.3 christos case BFD_RELOC_SPARC_TLS_LDM_HI22:
481 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
482 1.3 christos
483 1.3 christos case BFD_RELOC_SPARC_TLS_LDM_LO10:
484 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
485 1.3 christos
486 1.3 christos case BFD_RELOC_SPARC_TLS_LDM_ADD:
487 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
488 1.3 christos
489 1.3 christos case BFD_RELOC_SPARC_TLS_LDM_CALL:
490 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
491 1.3 christos
492 1.3 christos case BFD_RELOC_SPARC_TLS_LDO_HIX22:
493 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
494 1.3 christos
495 1.3 christos case BFD_RELOC_SPARC_TLS_LDO_LOX10:
496 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
497 1.3 christos
498 1.3 christos case BFD_RELOC_SPARC_TLS_LDO_ADD:
499 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
500 1.3 christos
501 1.3 christos case BFD_RELOC_SPARC_TLS_IE_HI22:
502 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
503 1.3 christos
504 1.3 christos case BFD_RELOC_SPARC_TLS_IE_LO10:
505 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
506 1.3 christos
507 1.3 christos case BFD_RELOC_SPARC_TLS_IE_LD:
508 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
509 1.3 christos
510 1.3 christos case BFD_RELOC_SPARC_TLS_IE_LDX:
511 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
512 1.3 christos
513 1.3 christos case BFD_RELOC_SPARC_TLS_IE_ADD:
514 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
515 1.3 christos
516 1.3 christos case BFD_RELOC_SPARC_TLS_LE_HIX22:
517 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
518 1.3 christos
519 1.3 christos case BFD_RELOC_SPARC_TLS_LE_LOX10:
520 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
521 1.3 christos
522 1.3 christos case BFD_RELOC_SPARC_TLS_DTPMOD32:
523 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
524 1.3 christos
525 1.3 christos case BFD_RELOC_SPARC_TLS_DTPMOD64:
526 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
527 1.3 christos
528 1.3 christos case BFD_RELOC_SPARC_TLS_DTPOFF32:
529 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
530 1.3 christos
531 1.3 christos case BFD_RELOC_SPARC_TLS_DTPOFF64:
532 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
533 1.3 christos
534 1.3 christos case BFD_RELOC_SPARC_TLS_TPOFF32:
535 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
536 1.3 christos
537 1.3 christos case BFD_RELOC_SPARC_TLS_TPOFF64:
538 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
539 1.3 christos
540 1.3 christos case BFD_RELOC_SPARC_GOTDATA_HIX22:
541 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
542 1.3 christos
543 1.3 christos case BFD_RELOC_SPARC_GOTDATA_LOX10:
544 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
545 1.3 christos
546 1.3 christos case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
547 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
548 1.3 christos
549 1.3 christos case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
550 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
551 1.3 christos
552 1.3 christos case BFD_RELOC_SPARC_GOTDATA_OP:
553 1.3 christos return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
554 1.3 christos
555 1.6 christos case BFD_RELOC_SPARC_H34:
556 1.6 christos return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
557 1.6 christos
558 1.6 christos case BFD_RELOC_SPARC_SIZE32:
559 1.6 christos return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
560 1.6 christos
561 1.6 christos case BFD_RELOC_SPARC_SIZE64:
562 1.6 christos return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
563 1.6 christos
564 1.6 christos case BFD_RELOC_SPARC_WDISP10:
565 1.6 christos return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
566 1.6 christos
567 1.3 christos case BFD_RELOC_SPARC_JMP_IREL:
568 1.3 christos return &sparc_jmp_irel_howto;
569 1.3 christos
570 1.19 christos case BFD_RELOC_IRELATIVE:
571 1.3 christos return &sparc_irelative_howto;
572 1.3 christos
573 1.1 skrll case BFD_RELOC_VTABLE_INHERIT:
574 1.1 skrll return &sparc_vtinherit_howto;
575 1.1 skrll
576 1.1 skrll case BFD_RELOC_VTABLE_ENTRY:
577 1.1 skrll return &sparc_vtentry_howto;
578 1.1 skrll
579 1.1 skrll case BFD_RELOC_SPARC_REV32:
580 1.1 skrll return &sparc_rev32_howto;
581 1.1 skrll
582 1.1 skrll default:
583 1.3 christos break;
584 1.1 skrll }
585 1.14 christos /* xgettext:c-format */
586 1.14 christos _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code);
587 1.14 christos bfd_set_error (bfd_error_bad_value);
588 1.14 christos return NULL;
589 1.1 skrll }
590 1.1 skrll
591 1.1 skrll reloc_howto_type *
592 1.1 skrll _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
593 1.1 skrll const char *r_name)
594 1.1 skrll {
595 1.1 skrll unsigned int i;
596 1.1 skrll
597 1.14 christos for (i = 0; i < ARRAY_SIZE (_bfd_sparc_elf_howto_table); i++)
598 1.1 skrll if (_bfd_sparc_elf_howto_table[i].name != NULL
599 1.1 skrll && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
600 1.1 skrll return &_bfd_sparc_elf_howto_table[i];
601 1.1 skrll
602 1.1 skrll if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
603 1.1 skrll return &sparc_vtinherit_howto;
604 1.1 skrll if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
605 1.1 skrll return &sparc_vtentry_howto;
606 1.1 skrll if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
607 1.1 skrll return &sparc_rev32_howto;
608 1.1 skrll
609 1.1 skrll return NULL;
610 1.1 skrll }
611 1.1 skrll
612 1.1 skrll reloc_howto_type *
613 1.14 christos _bfd_sparc_elf_info_to_howto_ptr (bfd *abfd ATTRIBUTE_UNUSED,
614 1.14 christos unsigned int r_type)
615 1.1 skrll {
616 1.1 skrll switch (r_type)
617 1.1 skrll {
618 1.3 christos case R_SPARC_JMP_IREL:
619 1.3 christos return &sparc_jmp_irel_howto;
620 1.3 christos
621 1.3 christos case R_SPARC_IRELATIVE:
622 1.3 christos return &sparc_irelative_howto;
623 1.3 christos
624 1.1 skrll case R_SPARC_GNU_VTINHERIT:
625 1.1 skrll return &sparc_vtinherit_howto;
626 1.1 skrll
627 1.1 skrll case R_SPARC_GNU_VTENTRY:
628 1.1 skrll return &sparc_vtentry_howto;
629 1.1 skrll
630 1.1 skrll case R_SPARC_REV32:
631 1.1 skrll return &sparc_rev32_howto;
632 1.1 skrll
633 1.1 skrll default:
634 1.1 skrll if (r_type >= (unsigned int) R_SPARC_max_std)
635 1.1 skrll {
636 1.14 christos _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
637 1.14 christos abfd, r_type);
638 1.14 christos bfd_set_error (bfd_error_bad_value);
639 1.14 christos return NULL;
640 1.1 skrll }
641 1.1 skrll return &_bfd_sparc_elf_howto_table[r_type];
642 1.1 skrll }
643 1.1 skrll }
644 1.1 skrll
645 1.1 skrll /* Both 32-bit and 64-bit sparc encode this in an identical manner,
646 1.1 skrll so just take advantage of that. */
647 1.1 skrll #define SPARC_ELF_R_TYPE(r_info) \
648 1.1 skrll ((r_info) & 0xff)
649 1.1 skrll
650 1.16 christos bool
651 1.14 christos _bfd_sparc_elf_info_to_howto (bfd *abfd, arelent *cache_ptr,
652 1.1 skrll Elf_Internal_Rela *dst)
653 1.1 skrll {
654 1.1 skrll unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
655 1.1 skrll
656 1.14 christos if ((cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (abfd, r_type)) == NULL)
657 1.14 christos {
658 1.14 christos bfd_set_error (bfd_error_bad_value);
659 1.16 christos return false;
660 1.14 christos }
661 1.16 christos return true;
662 1.1 skrll }
663 1.1 skrll
664 1.1 skrll
666 1.1 skrll /* The nop opcode we use. */
667 1.1 skrll #define SPARC_NOP 0x01000000
668 1.1 skrll
669 1.1 skrll #define SPARC_INSN_BYTES 4
670 1.13 christos
671 1.13 christos /* Is an undefined weak symbol resolved to 0 ?
672 1.13 christos Reference to an undefined weak symbol is resolved to 0 when
673 1.13 christos building an executable if it isn't dynamic and
674 1.13 christos 1. Has non-GOT/non-PLT relocations in text section.
675 1.13 christos Or
676 1.13 christos 2. Has no GOT/PLT relocation. */
677 1.13 christos #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
678 1.13 christos ((EH)->elf.root.type == bfd_link_hash_undefweak \
679 1.19 christos && bfd_link_executable (INFO) \
680 1.14 christos && (_bfd_sparc_elf_hash_table (INFO)->elf.interp == NULL \
681 1.13 christos || !(INFO)->dynamic_undefined_weak \
682 1.14 christos || (EH)->has_non_got_reloc \
683 1.1 skrll || !(EH)->has_got_reloc))
684 1.1 skrll
685 1.1 skrll /* SPARC ELF linker hash entry. */
686 1.1 skrll
687 1.1 skrll struct _bfd_sparc_elf_link_hash_entry
688 1.1 skrll {
689 1.1 skrll struct elf_link_hash_entry elf;
690 1.1 skrll
691 1.1 skrll #define GOT_UNKNOWN 0
692 1.1 skrll #define GOT_NORMAL 1
693 1.1 skrll #define GOT_TLS_GD 2
694 1.1 skrll #define GOT_TLS_IE 3
695 1.13 christos unsigned char tls_type;
696 1.14 christos
697 1.13 christos /* Symbol has GOT or PLT relocations. */
698 1.13 christos unsigned int has_got_reloc : 1;
699 1.14 christos
700 1.14 christos /* Symbol has old-style, non-relaxable GOT relocations. */
701 1.14 christos unsigned int has_old_style_got_reloc : 1;
702 1.13 christos
703 1.13 christos /* Symbol has non-GOT/non-PLT relocations in text sections. */
704 1.13 christos unsigned int has_non_got_reloc : 1;
705 1.1 skrll
706 1.1 skrll };
707 1.1 skrll
708 1.1 skrll #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
709 1.1 skrll
710 1.1 skrll struct _bfd_sparc_elf_obj_tdata
711 1.1 skrll {
712 1.1 skrll struct elf_obj_tdata root;
713 1.1 skrll
714 1.1 skrll /* tls_type for each local got entry. */
715 1.1 skrll char *local_got_tls_type;
716 1.1 skrll
717 1.16 christos /* TRUE if TLS GD relocs has been seen for this object. */
718 1.1 skrll bool has_tlsgd;
719 1.1 skrll };
720 1.1 skrll
721 1.1 skrll #define _bfd_sparc_elf_tdata(abfd) \
722 1.1 skrll ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
723 1.1 skrll
724 1.1 skrll #define _bfd_sparc_elf_local_got_tls_type(abfd) \
725 1.1 skrll (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
726 1.1 skrll
727 1.1 skrll #define is_sparc_elf(bfd) \
728 1.1 skrll (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
729 1.3 christos && elf_tdata (bfd) != NULL \
730 1.1 skrll && elf_object_id (bfd) == SPARC_ELF_DATA)
731 1.16 christos
732 1.1 skrll bool
733 1.1 skrll _bfd_sparc_elf_mkobject (bfd *abfd)
734 1.18 christos {
735 1.18 christos return bfd_elf_allocate_object (abfd,
736 1.1 skrll sizeof (struct _bfd_sparc_elf_obj_tdata));
737 1.1 skrll }
738 1.1 skrll
739 1.3 christos static void
740 1.1 skrll sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
741 1.3 christos {
742 1.1 skrll bfd_put_32 (abfd, val, ptr);
743 1.1 skrll }
744 1.1 skrll
745 1.3 christos static void
746 1.1 skrll sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
747 1.3 christos {
748 1.1 skrll bfd_put_64 (abfd, val, ptr);
749 1.1 skrll }
750 1.1 skrll
751 1.1 skrll static void
752 1.1 skrll sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
753 1.19 christos {
754 1.1 skrll elf_backend_data *bed;
755 1.1 skrll bfd_byte *loc;
756 1.1 skrll
757 1.14 christos bed = get_elf_backend_data (abfd);
758 1.1 skrll BFD_ASSERT (s->reloc_count * bed->s->sizeof_rela < s->size);
759 1.1 skrll loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
760 1.1 skrll bed->s->swap_reloca_out (abfd, rel, loc);
761 1.1 skrll }
762 1.1 skrll
763 1.1 skrll static bfd_vma
764 1.3 christos sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
765 1.1 skrll bfd_vma rel_index ATTRIBUTE_UNUSED,
766 1.1 skrll bfd_vma type ATTRIBUTE_UNUSED)
767 1.3 christos {
768 1.1 skrll return ELF64_R_INFO (rel_index,
769 1.1 skrll (in_rel ?
770 1.1 skrll ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
771 1.1 skrll type) : type));
772 1.1 skrll }
773 1.1 skrll
774 1.1 skrll static bfd_vma
775 1.3 christos sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
776 1.1 skrll bfd_vma rel_index, bfd_vma type)
777 1.3 christos {
778 1.1 skrll return ELF32_R_INFO (rel_index, type);
779 1.1 skrll }
780 1.1 skrll
781 1.1 skrll static bfd_vma
782 1.1 skrll sparc_elf_r_symndx_64 (bfd_vma r_info)
783 1.1 skrll {
784 1.1 skrll bfd_vma r_symndx = ELF32_R_SYM (r_info);
785 1.1 skrll return (r_symndx >> 24);
786 1.1 skrll }
787 1.1 skrll
788 1.1 skrll static bfd_vma
789 1.1 skrll sparc_elf_r_symndx_32 (bfd_vma r_info)
790 1.1 skrll {
791 1.1 skrll return ELF32_R_SYM (r_info);
792 1.1 skrll }
793 1.1 skrll
794 1.1 skrll /* PLT/GOT stuff */
795 1.1 skrll
796 1.1 skrll #define PLT32_ENTRY_SIZE 12
797 1.1 skrll #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
798 1.1 skrll
799 1.1 skrll /* The first four entries in a 32-bit procedure linkage table are reserved,
800 1.1 skrll and the initial contents are unimportant (we zero them out).
801 1.1 skrll Subsequent entries look like this. See the SVR4 ABI SPARC
802 1.1 skrll supplement to see how this works. */
803 1.1 skrll
804 1.1 skrll /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
805 1.1 skrll #define PLT32_ENTRY_WORD0 0x03000000
806 1.1 skrll /* b,a .plt0. We fill in the offset later. */
807 1.1 skrll #define PLT32_ENTRY_WORD1 0x30800000
808 1.1 skrll /* nop. */
809 1.1 skrll #define PLT32_ENTRY_WORD2 SPARC_NOP
810 1.1 skrll
811 1.1 skrll static int
812 1.1 skrll sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
813 1.1 skrll bfd_vma max ATTRIBUTE_UNUSED,
814 1.1 skrll bfd_vma *r_offset)
815 1.1 skrll {
816 1.1 skrll bfd_put_32 (output_bfd,
817 1.1 skrll PLT32_ENTRY_WORD0 + offset,
818 1.1 skrll splt->contents + offset);
819 1.1 skrll bfd_put_32 (output_bfd,
820 1.1 skrll (PLT32_ENTRY_WORD1
821 1.1 skrll + (((- (offset + 4)) >> 2) & 0x3fffff)),
822 1.1 skrll splt->contents + offset + 4);
823 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
824 1.1 skrll splt->contents + offset + 8);
825 1.1 skrll
826 1.1 skrll *r_offset = offset;
827 1.1 skrll
828 1.1 skrll return offset / PLT32_ENTRY_SIZE - 4;
829 1.1 skrll }
830 1.1 skrll
831 1.1 skrll /* Both the headers and the entries are icache aligned. */
832 1.1 skrll #define PLT64_ENTRY_SIZE 32
833 1.1 skrll #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
834 1.1 skrll #define PLT64_LARGE_THRESHOLD 32768
835 1.1 skrll
836 1.1 skrll static int
837 1.1 skrll sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
838 1.1 skrll bfd_vma max, bfd_vma *r_offset)
839 1.1 skrll {
840 1.1 skrll unsigned char *entry = splt->contents + offset;
841 1.3 christos const unsigned int nop = SPARC_NOP;
842 1.1 skrll int plt_index;
843 1.1 skrll
844 1.1 skrll if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
845 1.1 skrll {
846 1.1 skrll unsigned int sethi, ba;
847 1.1 skrll
848 1.1 skrll *r_offset = offset;
849 1.3 christos
850 1.1 skrll plt_index = (offset / PLT64_ENTRY_SIZE);
851 1.3 christos
852 1.1 skrll sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
853 1.1 skrll ba = 0x30680000
854 1.1 skrll | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
855 1.1 skrll
856 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
857 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
858 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
859 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
860 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
861 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
862 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
863 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
864 1.1 skrll }
865 1.1 skrll else
866 1.1 skrll {
867 1.1 skrll unsigned char *ptr;
868 1.1 skrll unsigned int ldx;
869 1.1 skrll int block, last_block, ofs, last_ofs, chunks_this_block;
870 1.1 skrll const int insn_chunk_size = (6 * 4);
871 1.1 skrll const int ptr_chunk_size = (1 * 8);
872 1.1 skrll const int entries_per_block = 160;
873 1.1 skrll const int block_size = entries_per_block * (insn_chunk_size
874 1.1 skrll + ptr_chunk_size);
875 1.1 skrll
876 1.1 skrll /* Entries 32768 and higher are grouped into blocks of 160.
877 1.1 skrll The blocks are further subdivided into 160 sequences of
878 1.1 skrll 6 instructions and 160 pointers. If a block does not require
879 1.1 skrll the full 160 entries, let's say it requires N, then there
880 1.1 skrll will be N sequences of 6 instructions and N pointers. */
881 1.1 skrll
882 1.1 skrll offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
883 1.1 skrll max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
884 1.1 skrll
885 1.1 skrll block = offset / block_size;
886 1.1 skrll last_block = max / block_size;
887 1.1 skrll if (block != last_block)
888 1.1 skrll {
889 1.1 skrll chunks_this_block = 160;
890 1.1 skrll }
891 1.1 skrll else
892 1.1 skrll {
893 1.1 skrll last_ofs = max % block_size;
894 1.1 skrll chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
895 1.1 skrll }
896 1.1 skrll
897 1.1 skrll ofs = offset % block_size;
898 1.3 christos
899 1.1 skrll plt_index = (PLT64_LARGE_THRESHOLD +
900 1.1 skrll (block * 160) +
901 1.1 skrll (ofs / insn_chunk_size));
902 1.1 skrll
903 1.1 skrll ptr = splt->contents
904 1.1 skrll + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
905 1.1 skrll + (block * block_size)
906 1.1 skrll + (chunks_this_block * insn_chunk_size)
907 1.1 skrll + (ofs / insn_chunk_size) * ptr_chunk_size;
908 1.1 skrll
909 1.1 skrll *r_offset = (bfd_vma) (ptr - splt->contents);
910 1.1 skrll
911 1.1 skrll ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
912 1.1 skrll
913 1.1 skrll /* mov %o7,%g5
914 1.1 skrll call .+8
915 1.1 skrll nop
916 1.1 skrll ldx [%o7+P],%g1
917 1.1 skrll jmpl %o7+%g1,%g1
918 1.1 skrll mov %g5,%o7 */
919 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
920 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
921 1.13 christos bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
922 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
923 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
924 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
925 1.1 skrll
926 1.1 skrll bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
927 1.1 skrll }
928 1.3 christos
929 1.1 skrll return plt_index - 4;
930 1.1 skrll }
931 1.1 skrll
932 1.1 skrll /* The format of the first PLT entry in a VxWorks executable. */
933 1.1 skrll static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
934 1.1 skrll {
935 1.1 skrll 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
936 1.1 skrll 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
937 1.1 skrll 0xc4008000, /* ld [ %g2 ], %g2 */
938 1.1 skrll 0x81c08000, /* jmp %g2 */
939 1.1 skrll 0x01000000 /* nop */
940 1.1 skrll };
941 1.1 skrll
942 1.1 skrll /* The format of subsequent PLT entries. */
943 1.1 skrll static const bfd_vma sparc_vxworks_exec_plt_entry[] =
944 1.1 skrll {
945 1.1 skrll 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
946 1.1 skrll 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
947 1.1 skrll 0xc2004000, /* ld [ %g1 ], %g1 */
948 1.1 skrll 0x81c04000, /* jmp %g1 */
949 1.1 skrll 0x01000000, /* nop */
950 1.1 skrll 0x03000000, /* sethi %hi(f@pltindex), %g1 */
951 1.1 skrll 0x10800000, /* b _PLT_resolve */
952 1.1 skrll 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
953 1.1 skrll };
954 1.1 skrll
955 1.1 skrll /* The format of the first PLT entry in a VxWorks shared object. */
956 1.1 skrll static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
957 1.1 skrll {
958 1.1 skrll 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
959 1.1 skrll 0x81c08000, /* jmp %g2 */
960 1.1 skrll 0x01000000 /* nop */
961 1.1 skrll };
962 1.1 skrll
963 1.1 skrll /* The format of subsequent PLT entries. */
964 1.1 skrll static const bfd_vma sparc_vxworks_shared_plt_entry[] =
965 1.1 skrll {
966 1.1 skrll 0x03000000, /* sethi %hi(f@got), %g1 */
967 1.1 skrll 0x82106000, /* or %g1, %lo(f@got), %g1 */
968 1.1 skrll 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
969 1.1 skrll 0x81c04000, /* jmp %g1 */
970 1.1 skrll 0x01000000, /* nop */
971 1.1 skrll 0x03000000, /* sethi %hi(f@pltindex), %g1 */
972 1.1 skrll 0x10800000, /* b _PLT_resolve */
973 1.1 skrll 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
974 1.1 skrll };
975 1.1 skrll
976 1.1 skrll #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
977 1.1 skrll htab->put_word(bfd, val, ptr)
978 1.1 skrll
979 1.1 skrll #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
980 1.1 skrll htab->r_info(in_rel, index, type)
981 1.1 skrll
982 1.1 skrll #define SPARC_ELF_R_SYMNDX(htab, r_info) \
983 1.1 skrll htab->r_symndx(r_info)
984 1.1 skrll
985 1.1 skrll #define SPARC_ELF_WORD_BYTES(htab) \
986 1.1 skrll htab->bytes_per_word
987 1.1 skrll
988 1.1 skrll #define SPARC_ELF_RELA_BYTES(htab) \
989 1.1 skrll htab->bytes_per_rela
990 1.1 skrll
991 1.1 skrll #define SPARC_ELF_DTPOFF_RELOC(htab) \
992 1.1 skrll htab->dtpoff_reloc
993 1.1 skrll
994 1.1 skrll #define SPARC_ELF_DTPMOD_RELOC(htab) \
995 1.1 skrll htab->dtpmod_reloc
996 1.1 skrll
997 1.1 skrll #define SPARC_ELF_TPOFF_RELOC(htab) \
998 1.1 skrll htab->tpoff_reloc
999 1.1 skrll
1000 1.1 skrll #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1001 1.1 skrll htab->build_plt_entry (obfd, splt, off, max, r_off)
1002 1.1 skrll
1003 1.1 skrll /* Create an entry in an SPARC ELF linker hash table. */
1004 1.1 skrll
1005 1.1 skrll static struct bfd_hash_entry *
1006 1.1 skrll link_hash_newfunc (struct bfd_hash_entry *entry,
1007 1.1 skrll struct bfd_hash_table *table, const char *string)
1008 1.1 skrll {
1009 1.1 skrll /* Allocate the structure if it has not already been allocated by a
1010 1.1 skrll subclass. */
1011 1.1 skrll if (entry == NULL)
1012 1.1 skrll {
1013 1.1 skrll entry = bfd_hash_allocate (table,
1014 1.1 skrll sizeof (struct _bfd_sparc_elf_link_hash_entry));
1015 1.1 skrll if (entry == NULL)
1016 1.1 skrll return entry;
1017 1.1 skrll }
1018 1.1 skrll
1019 1.1 skrll /* Call the allocation method of the superclass. */
1020 1.1 skrll entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1021 1.1 skrll if (entry != NULL)
1022 1.1 skrll {
1023 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *eh;
1024 1.1 skrll
1025 1.1 skrll eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1026 1.13 christos eh->tls_type = GOT_UNKNOWN;
1027 1.13 christos eh->has_got_reloc = 0;
1028 1.1 skrll eh->has_non_got_reloc = 0;
1029 1.1 skrll }
1030 1.1 skrll
1031 1.1 skrll return entry;
1032 1.1 skrll }
1033 1.1 skrll
1034 1.1 skrll /* The name of the dynamic interpreter. This is put in the .interp
1035 1.1 skrll section. */
1036 1.1 skrll
1037 1.1 skrll #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1038 1.1 skrll #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1039 1.3 christos
1040 1.3 christos /* Compute a hash of a local hash entry. We use elf_link_hash_entry
1041 1.3 christos for local symbol so that we can handle local STT_GNU_IFUNC symbols
1042 1.3 christos as global symbol. We reuse indx and dynstr_index for local symbol
1043 1.3 christos hash since they aren't used by global symbols in this backend. */
1044 1.3 christos
1045 1.3 christos static hashval_t
1046 1.3 christos elf_sparc_local_htab_hash (const void *ptr)
1047 1.3 christos {
1048 1.3 christos struct elf_link_hash_entry *h
1049 1.3 christos = (struct elf_link_hash_entry *) ptr;
1050 1.3 christos return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1051 1.3 christos }
1052 1.3 christos
1053 1.3 christos /* Compare local hash entries. */
1054 1.3 christos
1055 1.3 christos static int
1056 1.3 christos elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1057 1.3 christos {
1058 1.3 christos struct elf_link_hash_entry *h1
1059 1.3 christos = (struct elf_link_hash_entry *) ptr1;
1060 1.3 christos struct elf_link_hash_entry *h2
1061 1.3 christos = (struct elf_link_hash_entry *) ptr2;
1062 1.3 christos
1063 1.3 christos return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1064 1.3 christos }
1065 1.3 christos
1066 1.3 christos /* Find and/or create a hash entry for local symbol. */
1067 1.3 christos
1068 1.3 christos static struct elf_link_hash_entry *
1069 1.3 christos elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1070 1.16 christos bfd *abfd, const Elf_Internal_Rela *rel,
1071 1.3 christos bool create)
1072 1.3 christos {
1073 1.3 christos struct _bfd_sparc_elf_link_hash_entry e, *ret;
1074 1.3 christos asection *sec = abfd->sections;
1075 1.3 christos unsigned long r_symndx;
1076 1.3 christos hashval_t h;
1077 1.3 christos void **slot;
1078 1.3 christos
1079 1.3 christos r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1080 1.3 christos h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1081 1.3 christos
1082 1.3 christos e.elf.indx = sec->id;
1083 1.3 christos e.elf.dynstr_index = r_symndx;
1084 1.3 christos slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1085 1.3 christos create ? INSERT : NO_INSERT);
1086 1.3 christos
1087 1.3 christos if (!slot)
1088 1.3 christos return NULL;
1089 1.3 christos
1090 1.3 christos if (*slot)
1091 1.3 christos {
1092 1.3 christos ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1093 1.3 christos return &ret->elf;
1094 1.3 christos }
1095 1.3 christos
1096 1.3 christos ret = (struct _bfd_sparc_elf_link_hash_entry *)
1097 1.3 christos objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1098 1.3 christos sizeof (struct _bfd_sparc_elf_link_hash_entry));
1099 1.3 christos if (ret)
1100 1.3 christos {
1101 1.3 christos memset (ret, 0, sizeof (*ret));
1102 1.3 christos ret->elf.indx = sec->id;
1103 1.3 christos ret->elf.dynstr_index = r_symndx;
1104 1.3 christos ret->elf.dynindx = -1;
1105 1.3 christos ret->elf.plt.offset = (bfd_vma) -1;
1106 1.3 christos ret->elf.got.offset = (bfd_vma) -1;
1107 1.3 christos *slot = ret;
1108 1.3 christos }
1109 1.3 christos return &ret->elf;
1110 1.3 christos }
1111 1.7 christos
1112 1.7 christos /* Destroy a SPARC ELF linker hash table. */
1113 1.7 christos
1114 1.7 christos static void
1115 1.7 christos _bfd_sparc_elf_link_hash_table_free (bfd *obfd)
1116 1.7 christos {
1117 1.7 christos struct _bfd_sparc_elf_link_hash_table *htab
1118 1.7 christos = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
1119 1.7 christos
1120 1.7 christos if (htab->loc_hash_table)
1121 1.7 christos htab_delete (htab->loc_hash_table);
1122 1.7 christos if (htab->loc_hash_memory)
1123 1.7 christos objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1124 1.7 christos _bfd_elf_link_hash_table_free (obfd);
1125 1.7 christos }
1126 1.1 skrll
1127 1.1 skrll /* Create a SPARC ELF linker hash table. */
1128 1.1 skrll
1129 1.1 skrll struct bfd_link_hash_table *
1130 1.1 skrll _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1131 1.1 skrll {
1132 1.16 christos struct _bfd_sparc_elf_link_hash_table *ret;
1133 1.1 skrll size_t amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1134 1.1 skrll
1135 1.1 skrll ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1136 1.1 skrll if (ret == NULL)
1137 1.1 skrll return NULL;
1138 1.1 skrll
1139 1.1 skrll if (ABI_64_P (abfd))
1140 1.1 skrll {
1141 1.1 skrll ret->put_word = sparc_put_word_64;
1142 1.1 skrll ret->r_info = sparc_elf_r_info_64;
1143 1.1 skrll ret->r_symndx = sparc_elf_r_symndx_64;
1144 1.1 skrll ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1145 1.1 skrll ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1146 1.1 skrll ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1147 1.1 skrll ret->word_align_power = 3;
1148 1.1 skrll ret->align_power_max = 4;
1149 1.1 skrll ret->bytes_per_word = 8;
1150 1.1 skrll ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1151 1.1 skrll ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1152 1.3 christos ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
1153 1.3 christos
1154 1.3 christos ret->build_plt_entry = sparc64_plt_entry_build;
1155 1.3 christos ret->plt_header_size = PLT64_HEADER_SIZE;
1156 1.1 skrll ret->plt_entry_size = PLT64_ENTRY_SIZE;
1157 1.1 skrll }
1158 1.1 skrll else
1159 1.1 skrll {
1160 1.1 skrll ret->put_word = sparc_put_word_32;
1161 1.1 skrll ret->r_info = sparc_elf_r_info_32;
1162 1.1 skrll ret->r_symndx = sparc_elf_r_symndx_32;
1163 1.1 skrll ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1164 1.1 skrll ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1165 1.1 skrll ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1166 1.1 skrll ret->word_align_power = 2;
1167 1.1 skrll ret->align_power_max = 3;
1168 1.1 skrll ret->bytes_per_word = 4;
1169 1.1 skrll ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1170 1.1 skrll ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1171 1.3 christos ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
1172 1.3 christos
1173 1.3 christos ret->build_plt_entry = sparc32_plt_entry_build;
1174 1.3 christos ret->plt_header_size = PLT32_HEADER_SIZE;
1175 1.1 skrll ret->plt_entry_size = PLT32_ENTRY_SIZE;
1176 1.1 skrll }
1177 1.1 skrll
1178 1.18 christos if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1179 1.3 christos sizeof (struct _bfd_sparc_elf_link_hash_entry)))
1180 1.3 christos {
1181 1.3 christos free (ret);
1182 1.3 christos return NULL;
1183 1.3 christos }
1184 1.3 christos
1185 1.3 christos ret->loc_hash_table = htab_try_create (1024,
1186 1.3 christos elf_sparc_local_htab_hash,
1187 1.3 christos elf_sparc_local_htab_eq,
1188 1.3 christos NULL);
1189 1.3 christos ret->loc_hash_memory = objalloc_create ();
1190 1.1 skrll if (!ret->loc_hash_table || !ret->loc_hash_memory)
1191 1.7 christos {
1192 1.1 skrll _bfd_sparc_elf_link_hash_table_free (abfd);
1193 1.1 skrll return NULL;
1194 1.7 christos }
1195 1.1 skrll ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
1196 1.1 skrll
1197 1.1 skrll return &ret->elf.root;
1198 1.1 skrll }
1199 1.1 skrll
1200 1.1 skrll /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1201 1.1 skrll .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1202 1.1 skrll hash table. */
1203 1.16 christos
1204 1.1 skrll bool
1205 1.1 skrll _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1206 1.1 skrll struct bfd_link_info *info)
1207 1.1 skrll {
1208 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
1209 1.1 skrll
1210 1.3 christos htab = _bfd_sparc_elf_hash_table (info);
1211 1.1 skrll BFD_ASSERT (htab != NULL);
1212 1.1 skrll
1213 1.16 christos if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1214 1.1 skrll return false;
1215 1.16 christos
1216 1.1 skrll if (htab->elf.target_os == is_vxworks)
1217 1.1 skrll {
1218 1.16 christos if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1219 1.7 christos return false;
1220 1.1 skrll if (bfd_link_pic (info))
1221 1.1 skrll {
1222 1.1 skrll htab->plt_header_size
1223 1.1 skrll = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1224 1.1 skrll htab->plt_entry_size
1225 1.1 skrll = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1226 1.1 skrll }
1227 1.1 skrll else
1228 1.1 skrll {
1229 1.1 skrll htab->plt_header_size
1230 1.1 skrll = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1231 1.1 skrll htab->plt_entry_size
1232 1.1 skrll = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1233 1.1 skrll }
1234 1.1 skrll }
1235 1.13 christos
1236 1.13 christos if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1237 1.1 skrll || (!bfd_link_pic (info) && !htab->elf.srelbss))
1238 1.1 skrll abort ();
1239 1.16 christos
1240 1.1 skrll return true;
1241 1.1 skrll }
1242 1.16 christos
1243 1.3 christos static bool
1244 1.3 christos create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1245 1.19 christos {
1246 1.3 christos elf_backend_data *bed = get_elf_backend_data (abfd);
1247 1.3 christos struct elf_link_hash_table *htab = elf_hash_table (info);
1248 1.3 christos flagword flags, pltflags;
1249 1.3 christos asection *s;
1250 1.3 christos
1251 1.16 christos if (htab->irelifunc != NULL || htab->iplt != NULL)
1252 1.3 christos return true;
1253 1.3 christos
1254 1.3 christos flags = bed->dynamic_sec_flags;
1255 1.3 christos pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1256 1.3 christos
1257 1.3 christos s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1258 1.15 christos if (s == NULL
1259 1.16 christos || !bfd_set_section_alignment (s, bed->plt_alignment))
1260 1.3 christos return false;
1261 1.3 christos htab->iplt = s;
1262 1.3 christos
1263 1.3 christos s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1264 1.3 christos flags | SEC_READONLY);
1265 1.15 christos if (s == NULL
1266 1.16 christos || !bfd_set_section_alignment (s, bed->s->log_file_align))
1267 1.3 christos return false;
1268 1.3 christos htab->irelplt = s;
1269 1.16 christos
1270 1.3 christos return true;
1271 1.3 christos }
1272 1.1 skrll
1273 1.1 skrll /* Copy the extra info we tack onto an elf_link_hash_entry. */
1274 1.1 skrll
1275 1.1 skrll void
1276 1.1 skrll _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
1277 1.1 skrll struct elf_link_hash_entry *dir,
1278 1.1 skrll struct elf_link_hash_entry *ind)
1279 1.1 skrll {
1280 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1281 1.1 skrll
1282 1.1 skrll edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1283 1.1 skrll eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1284 1.14 christos
1285 1.1 skrll if (ind->root.type == bfd_link_hash_indirect && dir->got.refcount <= 0)
1286 1.1 skrll {
1287 1.1 skrll edir->tls_type = eind->tls_type;
1288 1.1 skrll eind->tls_type = GOT_UNKNOWN;
1289 1.13 christos }
1290 1.13 christos
1291 1.13 christos /* Copy has_got_reloc and has_non_got_reloc. */
1292 1.13 christos edir->has_got_reloc |= eind->has_got_reloc;
1293 1.13 christos edir->has_non_got_reloc |= eind->has_non_got_reloc;
1294 1.1 skrll
1295 1.1 skrll _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1296 1.1 skrll }
1297 1.1 skrll
1298 1.1 skrll static int
1299 1.1 skrll sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1300 1.1 skrll int r_type, int is_local)
1301 1.1 skrll {
1302 1.1 skrll if (! ABI_64_P (abfd)
1303 1.1 skrll && r_type == R_SPARC_TLS_GD_HI22
1304 1.14 christos && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1305 1.1 skrll return R_SPARC_REV32;
1306 1.14 christos
1307 1.1 skrll if (!bfd_link_executable (info))
1308 1.1 skrll return r_type;
1309 1.1 skrll
1310 1.1 skrll switch (r_type)
1311 1.1 skrll {
1312 1.14 christos case R_SPARC_TLS_GD_HI22:
1313 1.1 skrll return is_local ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_IE_HI22;
1314 1.14 christos case R_SPARC_TLS_GD_LO10:
1315 1.1 skrll return is_local ? R_SPARC_TLS_LE_LOX10 : R_SPARC_TLS_IE_LO10;
1316 1.1 skrll case R_SPARC_TLS_LDM_HI22:
1317 1.1 skrll return R_SPARC_TLS_LE_HIX22;
1318 1.1 skrll case R_SPARC_TLS_LDM_LO10:
1319 1.14 christos return R_SPARC_TLS_LE_LOX10;
1320 1.14 christos case R_SPARC_TLS_IE_HI22:
1321 1.14 christos return is_local ? R_SPARC_TLS_LE_HIX22 : r_type;
1322 1.14 christos case R_SPARC_TLS_IE_LO10:
1323 1.1 skrll return is_local ? R_SPARC_TLS_LE_LOX10 : r_type;
1324 1.1 skrll }
1325 1.1 skrll
1326 1.1 skrll return r_type;
1327 1.1 skrll }
1328 1.1 skrll
1329 1.1 skrll /* Look through the relocs for a section during the first phase, and
1331 1.1 skrll allocate space in the global offset table or procedure linkage
1332 1.16 christos table. */
1333 1.1 skrll
1334 1.1 skrll bool
1335 1.1 skrll _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1336 1.1 skrll asection *sec, const Elf_Internal_Rela *relocs)
1337 1.1 skrll {
1338 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
1339 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
1340 1.1 skrll struct elf_link_hash_entry **sym_hashes;
1341 1.1 skrll const Elf_Internal_Rela *rel;
1342 1.1 skrll const Elf_Internal_Rela *rel_end;
1343 1.16 christos asection *sreloc;
1344 1.1 skrll int num_relocs;
1345 1.7 christos bool checked_tlsgd = false;
1346 1.16 christos
1347 1.1 skrll if (bfd_link_relocatable (info))
1348 1.1 skrll return true;
1349 1.3 christos
1350 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
1351 1.1 skrll BFD_ASSERT (htab != NULL);
1352 1.1 skrll symtab_hdr = &elf_symtab_hdr (abfd);
1353 1.1 skrll sym_hashes = elf_sym_hashes (abfd);
1354 1.1 skrll
1355 1.1 skrll sreloc = NULL;
1356 1.3 christos
1357 1.1 skrll if (ABI_64_P (abfd))
1358 1.1 skrll num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
1359 1.1 skrll else
1360 1.1 skrll num_relocs = sec->reloc_count;
1361 1.1 skrll
1362 1.3 christos BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1363 1.3 christos
1364 1.3 christos if (htab->elf.dynobj == NULL)
1365 1.16 christos htab->elf.dynobj = abfd;
1366 1.3 christos if (!create_ifunc_sections (htab->elf.dynobj, info))
1367 1.1 skrll return false;
1368 1.1 skrll
1369 1.1 skrll rel_end = relocs + num_relocs;
1370 1.1 skrll for (rel = relocs; rel < rel_end; rel++)
1371 1.13 christos {
1372 1.1 skrll unsigned int r_type;
1373 1.13 christos unsigned int r_symndx;
1374 1.3 christos struct elf_link_hash_entry *h;
1375 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *eh;
1376 1.1 skrll Elf_Internal_Sym *isym;
1377 1.1 skrll
1378 1.1 skrll r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1379 1.1 skrll r_type = SPARC_ELF_R_TYPE (rel->r_info);
1380 1.1 skrll
1381 1.13 christos if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1382 1.14 christos {
1383 1.16 christos /* xgettext:c-format */
1384 1.1 skrll _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx);
1385 1.1 skrll return false;
1386 1.3 christos }
1387 1.1 skrll
1388 1.3 christos isym = NULL;
1389 1.3 christos if (r_symndx < symtab_hdr->sh_info)
1390 1.16 christos {
1391 1.16 christos /* A local symbol. */
1392 1.3 christos isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd,
1393 1.16 christos r_symndx);
1394 1.3 christos if (isym == NULL)
1395 1.3 christos return false;
1396 1.3 christos
1397 1.3 christos /* Check relocation against local STT_GNU_IFUNC symbol. */
1398 1.16 christos if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1399 1.3 christos {
1400 1.16 christos h = elf_sparc_get_local_sym_hash (htab, abfd, rel, true);
1401 1.7 christos if (h == NULL)
1402 1.3 christos return false;
1403 1.3 christos
1404 1.3 christos /* Fake a STT_GNU_IFUNC symbol. */
1405 1.3 christos h->type = STT_GNU_IFUNC;
1406 1.3 christos h->def_regular = 1;
1407 1.3 christos h->ref_regular = 1;
1408 1.3 christos h->forced_local = 1;
1409 1.3 christos h->root.type = bfd_link_hash_defined;
1410 1.3 christos }
1411 1.3 christos else
1412 1.1 skrll h = NULL;
1413 1.1 skrll }
1414 1.1 skrll else
1415 1.1 skrll {
1416 1.1 skrll h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1417 1.1 skrll while (h->root.type == bfd_link_hash_indirect
1418 1.1 skrll || h->root.type == bfd_link_hash_warning)
1419 1.1 skrll h = (struct elf_link_hash_entry *) h->root.u.i.link;
1420 1.14 christos }
1421 1.3 christos
1422 1.14 christos if (h && h->type == STT_GNU_IFUNC && h->def_regular)
1423 1.14 christos {
1424 1.3 christos h->ref_regular = 1;
1425 1.3 christos h->plt.refcount += 1;
1426 1.18 christos }
1427 1.18 christos
1428 1.18 christos /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. */
1429 1.18 christos if (h != NULL
1430 1.18 christos && htab->elf.sgot == NULL
1431 1.18 christos && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1432 1.18 christos {
1433 1.18 christos if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
1434 1.18 christos return false;
1435 1.18 christos BFD_ASSERT (h == htab->elf.hgot);
1436 1.1 skrll }
1437 1.1 skrll
1438 1.1 skrll /* Compatibility with old R_SPARC_REV32 reloc conflicting
1439 1.1 skrll with R_SPARC_TLS_GD_HI22. */
1440 1.1 skrll if (! ABI_64_P (abfd) && ! checked_tlsgd)
1441 1.1 skrll switch (r_type)
1442 1.1 skrll {
1443 1.1 skrll case R_SPARC_TLS_GD_HI22:
1444 1.1 skrll {
1445 1.1 skrll const Elf_Internal_Rela *relt;
1446 1.1 skrll
1447 1.1 skrll for (relt = rel + 1; relt < rel_end; relt++)
1448 1.1 skrll if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1449 1.1 skrll || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1450 1.16 christos || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1451 1.1 skrll break;
1452 1.1 skrll checked_tlsgd = true;
1453 1.1 skrll _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1454 1.1 skrll }
1455 1.1 skrll break;
1456 1.1 skrll case R_SPARC_TLS_GD_LO10:
1457 1.16 christos case R_SPARC_TLS_GD_ADD:
1458 1.16 christos case R_SPARC_TLS_GD_CALL:
1459 1.1 skrll checked_tlsgd = true;
1460 1.1 skrll _bfd_sparc_elf_tdata (abfd)->has_tlsgd = true;
1461 1.1 skrll break;
1462 1.1 skrll }
1463 1.13 christos
1464 1.13 christos r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1465 1.1 skrll eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1466 1.1 skrll
1467 1.1 skrll switch (r_type)
1468 1.1 skrll {
1469 1.1 skrll case R_SPARC_TLS_LDM_HI22:
1470 1.13 christos case R_SPARC_TLS_LDM_LO10:
1471 1.13 christos htab->tls_ldm_got.refcount += 1;
1472 1.1 skrll if (eh != NULL)
1473 1.1 skrll eh->has_got_reloc = 1;
1474 1.1 skrll break;
1475 1.1 skrll
1476 1.14 christos case R_SPARC_TLS_LE_HIX22:
1477 1.1 skrll case R_SPARC_TLS_LE_LOX10:
1478 1.1 skrll if (!bfd_link_executable (info))
1479 1.1 skrll goto r_sparc_plt32;
1480 1.1 skrll break;
1481 1.1 skrll
1482 1.14 christos case R_SPARC_TLS_IE_HI22:
1483 1.1 skrll case R_SPARC_TLS_IE_LO10:
1484 1.1 skrll if (!bfd_link_executable (info))
1485 1.1 skrll info->flags |= DF_STATIC_TLS;
1486 1.1 skrll /* Fall through */
1487 1.1 skrll
1488 1.1 skrll case R_SPARC_GOT10:
1489 1.1 skrll case R_SPARC_GOT13:
1490 1.1 skrll case R_SPARC_GOT22:
1491 1.1 skrll case R_SPARC_GOTDATA_HIX22:
1492 1.1 skrll case R_SPARC_GOTDATA_LOX10:
1493 1.1 skrll case R_SPARC_GOTDATA_OP_HIX22:
1494 1.1 skrll case R_SPARC_GOTDATA_OP_LOX10:
1495 1.1 skrll case R_SPARC_TLS_GD_HI22:
1496 1.1 skrll case R_SPARC_TLS_GD_LO10:
1497 1.1 skrll /* This symbol requires a global offset table entry. */
1498 1.1 skrll {
1499 1.1 skrll int tls_type, old_tls_type;
1500 1.1 skrll
1501 1.1 skrll switch (r_type)
1502 1.1 skrll {
1503 1.1 skrll case R_SPARC_TLS_GD_HI22:
1504 1.1 skrll case R_SPARC_TLS_GD_LO10:
1505 1.1 skrll tls_type = GOT_TLS_GD;
1506 1.1 skrll break;
1507 1.1 skrll case R_SPARC_TLS_IE_HI22:
1508 1.1 skrll case R_SPARC_TLS_IE_LO10:
1509 1.14 christos tls_type = GOT_TLS_IE;
1510 1.14 christos break;
1511 1.14 christos default:
1512 1.1 skrll tls_type = GOT_NORMAL;
1513 1.1 skrll break;
1514 1.1 skrll }
1515 1.1 skrll
1516 1.1 skrll if (h != NULL)
1517 1.1 skrll {
1518 1.1 skrll h->got.refcount += 1;
1519 1.1 skrll old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1520 1.1 skrll }
1521 1.1 skrll else
1522 1.1 skrll {
1523 1.1 skrll bfd_signed_vma *local_got_refcounts;
1524 1.1 skrll
1525 1.1 skrll /* This is a global offset table entry for a local symbol. */
1526 1.1 skrll local_got_refcounts = elf_local_got_refcounts (abfd);
1527 1.1 skrll if (local_got_refcounts == NULL)
1528 1.1 skrll {
1529 1.1 skrll bfd_size_type size;
1530 1.1 skrll
1531 1.1 skrll size = symtab_hdr->sh_info;
1532 1.1 skrll size *= (sizeof (bfd_signed_vma) + sizeof(char));
1533 1.1 skrll local_got_refcounts = ((bfd_signed_vma *)
1534 1.16 christos bfd_zalloc (abfd, size));
1535 1.1 skrll if (local_got_refcounts == NULL)
1536 1.1 skrll return false;
1537 1.1 skrll elf_local_got_refcounts (abfd) = local_got_refcounts;
1538 1.1 skrll _bfd_sparc_elf_local_got_tls_type (abfd)
1539 1.3 christos = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1540 1.14 christos }
1541 1.14 christos
1542 1.14 christos if (r_type != R_SPARC_GOTDATA_OP_HIX22
1543 1.14 christos && r_type != R_SPARC_GOTDATA_OP_LOX10)
1544 1.14 christos local_got_refcounts[r_symndx] += 1;
1545 1.14 christos
1546 1.1 skrll old_tls_type
1547 1.1 skrll = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1548 1.14 christos }
1549 1.14 christos
1550 1.14 christos /* If a TLS symbol is accessed using IE at least once, there is no
1551 1.1 skrll point in using the dynamic model for it. */
1552 1.14 christos if (old_tls_type != tls_type)
1553 1.14 christos {
1554 1.14 christos if (old_tls_type == GOT_UNKNOWN)
1555 1.14 christos ;
1556 1.14 christos else if (old_tls_type == GOT_TLS_GD && tls_type == GOT_TLS_IE)
1557 1.1 skrll ;
1558 1.1 skrll else if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1559 1.1 skrll tls_type = old_tls_type;
1560 1.13 christos else
1561 1.13 christos {
1562 1.14 christos _bfd_error_handler
1563 1.1 skrll /* xgettext:c-format */
1564 1.16 christos (_("%pB: `%s' accessed both as normal and thread local symbol"),
1565 1.1 skrll abfd, h ? h->root.root.string : "<local>");
1566 1.1 skrll return false;
1567 1.1 skrll }
1568 1.1 skrll
1569 1.1 skrll if (h != NULL)
1570 1.1 skrll _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1571 1.1 skrll else
1572 1.1 skrll _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1573 1.1 skrll }
1574 1.14 christos }
1575 1.14 christos
1576 1.16 christos if (!htab->elf.sgot
1577 1.14 christos && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
1578 1.14 christos return false;
1579 1.1 skrll
1580 1.14 christos if (eh != NULL)
1581 1.14 christos {
1582 1.14 christos eh->has_got_reloc = 1;
1583 1.14 christos if (r_type == R_SPARC_GOT10
1584 1.14 christos || r_type == R_SPARC_GOT13
1585 1.1 skrll || r_type == R_SPARC_GOT22)
1586 1.1 skrll eh->has_old_style_got_reloc = 1;
1587 1.1 skrll }
1588 1.1 skrll break;
1589 1.1 skrll
1590 1.14 christos case R_SPARC_TLS_GD_CALL:
1591 1.1 skrll case R_SPARC_TLS_LDM_CALL:
1592 1.14 christos if (bfd_link_executable (info))
1593 1.14 christos break;
1594 1.14 christos
1595 1.16 christos /* Essentially R_SPARC_WPLT30 relocs against __tls_get_addr. */
1596 1.16 christos h = (struct elf_link_hash_entry *)
1597 1.14 christos bfd_link_hash_lookup (info->hash, "__tls_get_addr", false,
1598 1.1 skrll false, true);
1599 1.1 skrll BFD_ASSERT (h != NULL);
1600 1.14 christos /* Fall through */
1601 1.1 skrll
1602 1.14 christos case R_SPARC_WPLT30:
1603 1.1 skrll case R_SPARC_PLT32:
1604 1.1 skrll case R_SPARC_PLT64:
1605 1.1 skrll case R_SPARC_HIPLT22:
1606 1.1 skrll case R_SPARC_LOPLT10:
1607 1.1 skrll case R_SPARC_PCPLT32:
1608 1.14 christos case R_SPARC_PCPLT22:
1609 1.14 christos case R_SPARC_PCPLT10:
1610 1.1 skrll /* This symbol requires a procedure linkage table entry.
1611 1.1 skrll We actually build the entry in adjust_dynamic_symbol,
1612 1.1 skrll because this might be a case of linking PIC code without
1613 1.1 skrll linking in any dynamic objects, in which case we don't
1614 1.1 skrll need to generate a procedure linkage table after all. */
1615 1.1 skrll
1616 1.1 skrll if (h == NULL)
1617 1.1 skrll {
1618 1.1 skrll if (! ABI_64_P (abfd))
1619 1.1 skrll {
1620 1.1 skrll /* The Solaris native assembler will generate a WPLT30
1621 1.1 skrll reloc for a local symbol if you assemble a call from
1622 1.14 christos one section to another when using -K pic. We treat
1623 1.1 skrll it as WDISP30. */
1624 1.1 skrll if (r_type == R_SPARC_PLT32)
1625 1.1 skrll goto r_sparc_plt32;
1626 1.3 christos break;
1627 1.3 christos }
1628 1.3 christos /* PR 7027: We need similar behaviour for 64-bit binaries. */
1629 1.1 skrll else if (r_type == R_SPARC_WPLT30)
1630 1.1 skrll break;
1631 1.13 christos
1632 1.1 skrll /* It does not make sense to have a procedure linkage
1633 1.16 christos table entry for a local symbol. */
1634 1.1 skrll bfd_set_error (bfd_error_bad_value);
1635 1.1 skrll return false;
1636 1.1 skrll }
1637 1.1 skrll
1638 1.14 christos h->needs_plt = 1;
1639 1.14 christos
1640 1.1 skrll if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
1641 1.1 skrll goto r_sparc_plt32;
1642 1.13 christos
1643 1.13 christos h->plt.refcount += 1;
1644 1.13 christos
1645 1.1 skrll eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1646 1.1 skrll eh->has_got_reloc = 1;
1647 1.1 skrll break;
1648 1.1 skrll
1649 1.1 skrll case R_SPARC_PC10:
1650 1.1 skrll case R_SPARC_PC22:
1651 1.1 skrll case R_SPARC_PC_HH22:
1652 1.1 skrll case R_SPARC_PC_HM10:
1653 1.1 skrll case R_SPARC_PC_LM22:
1654 1.1 skrll if (h != NULL)
1655 1.18 christos h->non_got_ref = 1;
1656 1.1 skrll
1657 1.1 skrll if (h != NULL && h == htab->elf.hgot)
1658 1.1 skrll break;
1659 1.1 skrll /* Fall through. */
1660 1.1 skrll
1661 1.1 skrll case R_SPARC_DISP8:
1662 1.1 skrll case R_SPARC_DISP16:
1663 1.1 skrll case R_SPARC_DISP32:
1664 1.1 skrll case R_SPARC_DISP64:
1665 1.1 skrll case R_SPARC_WDISP30:
1666 1.1 skrll case R_SPARC_WDISP22:
1667 1.6 christos case R_SPARC_WDISP19:
1668 1.1 skrll case R_SPARC_WDISP16:
1669 1.1 skrll case R_SPARC_WDISP10:
1670 1.1 skrll case R_SPARC_8:
1671 1.1 skrll case R_SPARC_16:
1672 1.1 skrll case R_SPARC_32:
1673 1.1 skrll case R_SPARC_HI22:
1674 1.1 skrll case R_SPARC_22:
1675 1.1 skrll case R_SPARC_13:
1676 1.1 skrll case R_SPARC_LO10:
1677 1.1 skrll case R_SPARC_UA16:
1678 1.1 skrll case R_SPARC_UA32:
1679 1.1 skrll case R_SPARC_10:
1680 1.1 skrll case R_SPARC_11:
1681 1.1 skrll case R_SPARC_64:
1682 1.1 skrll case R_SPARC_OLO10:
1683 1.1 skrll case R_SPARC_HH22:
1684 1.1 skrll case R_SPARC_HM10:
1685 1.1 skrll case R_SPARC_LM22:
1686 1.1 skrll case R_SPARC_7:
1687 1.1 skrll case R_SPARC_5:
1688 1.1 skrll case R_SPARC_6:
1689 1.1 skrll case R_SPARC_HIX22:
1690 1.1 skrll case R_SPARC_LOX10:
1691 1.1 skrll case R_SPARC_H44:
1692 1.6 christos case R_SPARC_M44:
1693 1.1 skrll case R_SPARC_L44:
1694 1.1 skrll case R_SPARC_H34:
1695 1.1 skrll case R_SPARC_UA64:
1696 1.1 skrll if (h != NULL)
1697 1.13 christos h->non_got_ref = 1;
1698 1.13 christos
1699 1.13 christos if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1700 1.1 skrll eh->has_non_got_reloc = 1;
1701 1.7 christos
1702 1.1 skrll r_sparc_plt32:
1703 1.1 skrll if (h != NULL && !bfd_link_pic (info))
1704 1.1 skrll {
1705 1.1 skrll /* We may need a .plt entry if the function this reloc
1706 1.1 skrll refers to is in a shared lib. */
1707 1.1 skrll h->plt.refcount += 1;
1708 1.1 skrll }
1709 1.1 skrll
1710 1.1 skrll /* If we are creating a shared library, and this is a reloc
1711 1.1 skrll against a global symbol, or a non PC relative reloc
1712 1.1 skrll against a local symbol, then we need to copy the reloc
1713 1.1 skrll into the shared library. However, if we are linking with
1714 1.1 skrll -Bsymbolic, we do not need to copy a reloc against a
1715 1.1 skrll global symbol which is defined in an object we are
1716 1.1 skrll including in the link (i.e., DEF_REGULAR is set). At
1717 1.1 skrll this point we have not seen all the input files, so it is
1718 1.1 skrll possible that DEF_REGULAR is not set now but will be set
1719 1.1 skrll later (it is never cleared). In case of a weak definition,
1720 1.1 skrll DEF_REGULAR may be cleared later by a strong definition in
1721 1.1 skrll a shared library. We account for that possibility below by
1722 1.1 skrll storing information in the relocs_copied field of the hash
1723 1.1 skrll table entry. A similar situation occurs when creating
1724 1.1 skrll shared libraries and symbol visibility changes render the
1725 1.1 skrll symbol local.
1726 1.1 skrll
1727 1.1 skrll If on the other hand, we are creating an executable, we
1728 1.1 skrll may need to keep relocations for symbols satisfied by a
1729 1.7 christos dynamic library if we manage to avoid copy relocs for the
1730 1.1 skrll symbol. */
1731 1.1 skrll if ((bfd_link_pic (info)
1732 1.1 skrll && (sec->flags & SEC_ALLOC) != 0
1733 1.3 christos && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1734 1.1 skrll || (h != NULL
1735 1.1 skrll && (! SYMBOLIC_BIND (info, h)
1736 1.7 christos || h->root.type == bfd_link_hash_defweak
1737 1.1 skrll || !h->def_regular))))
1738 1.1 skrll || (!bfd_link_pic (info)
1739 1.1 skrll && (sec->flags & SEC_ALLOC) != 0
1740 1.3 christos && h != NULL
1741 1.7 christos && (h->root.type == bfd_link_hash_defweak
1742 1.3 christos || !h->def_regular))
1743 1.3 christos || (!bfd_link_pic (info)
1744 1.1 skrll && h != NULL
1745 1.13 christos && h->type == STT_GNU_IFUNC))
1746 1.13 christos {
1747 1.1 skrll struct elf_dyn_relocs *p;
1748 1.1 skrll struct elf_dyn_relocs **head;
1749 1.1 skrll
1750 1.1 skrll /* When creating a shared object, we must copy these
1751 1.1 skrll relocs into the output file. We create a reloc
1752 1.1 skrll section in dynobj and make room for the reloc. */
1753 1.3 christos if (sreloc == NULL)
1754 1.3 christos {
1755 1.16 christos sreloc = _bfd_elf_make_dynamic_reloc_section
1756 1.1 skrll (sec, htab->elf.dynobj, htab->word_align_power,
1757 1.3 christos abfd, /*rela?*/ true);
1758 1.16 christos
1759 1.1 skrll if (sreloc == NULL)
1760 1.1 skrll return false;
1761 1.1 skrll }
1762 1.1 skrll
1763 1.1 skrll /* If this is a global symbol, we count the number of
1764 1.16 christos relocations we need for this symbol. */
1765 1.1 skrll if (h != NULL)
1766 1.1 skrll head = &h->dyn_relocs;
1767 1.1 skrll else
1768 1.1 skrll {
1769 1.1 skrll /* Track dynamic relocs needed for local syms too.
1770 1.1 skrll We really need local syms available to do this
1771 1.1 skrll easily. Oh well. */
1772 1.1 skrll asection *s;
1773 1.3 christos void *vpp;
1774 1.3 christos
1775 1.1 skrll BFD_ASSERT (isym != NULL);
1776 1.3 christos s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1777 1.1 skrll if (s == NULL)
1778 1.1 skrll s = sec;
1779 1.13 christos
1780 1.1 skrll vpp = &elf_section_data (s)->local_dynrel;
1781 1.1 skrll head = (struct elf_dyn_relocs **) vpp;
1782 1.1 skrll }
1783 1.1 skrll
1784 1.1 skrll p = *head;
1785 1.16 christos if (p == NULL || p->sec != sec)
1786 1.13 christos {
1787 1.1 skrll size_t amt = sizeof *p;
1788 1.1 skrll p = ((struct elf_dyn_relocs *)
1789 1.16 christos bfd_alloc (htab->elf.dynobj, amt));
1790 1.1 skrll if (p == NULL)
1791 1.1 skrll return false;
1792 1.1 skrll p->next = *head;
1793 1.1 skrll *head = p;
1794 1.1 skrll p->sec = sec;
1795 1.1 skrll p->count = 0;
1796 1.1 skrll p->pc_count = 0;
1797 1.1 skrll }
1798 1.1 skrll
1799 1.1 skrll p->count += 1;
1800 1.1 skrll if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1801 1.1 skrll p->pc_count += 1;
1802 1.1 skrll }
1803 1.1 skrll
1804 1.1 skrll break;
1805 1.1 skrll
1806 1.16 christos case R_SPARC_GNU_VTINHERIT:
1807 1.1 skrll if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1808 1.1 skrll return false;
1809 1.1 skrll break;
1810 1.15 christos
1811 1.16 christos case R_SPARC_GNU_VTENTRY:
1812 1.1 skrll if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1813 1.1 skrll return false;
1814 1.1 skrll break;
1815 1.1 skrll
1816 1.1 skrll case R_SPARC_REGISTER:
1817 1.1 skrll /* Nothing to do. */
1818 1.1 skrll break;
1819 1.1 skrll
1820 1.1 skrll default:
1821 1.1 skrll break;
1822 1.1 skrll }
1823 1.16 christos }
1824 1.1 skrll
1825 1.1 skrll return true;
1826 1.1 skrll }
1827 1.1 skrll
1828 1.1 skrll asection *
1830 1.1 skrll _bfd_sparc_elf_gc_mark_hook (asection *sec,
1831 1.19 christos struct bfd_link_info *info,
1832 1.1 skrll struct elf_reloc_cookie *cookie,
1833 1.1 skrll struct elf_link_hash_entry *h,
1834 1.19 christos unsigned int symndx)
1835 1.1 skrll {
1836 1.1 skrll if (h != NULL)
1837 1.1 skrll switch (SPARC_ELF_R_TYPE (cookie->rel->r_info))
1838 1.1 skrll {
1839 1.1 skrll case R_SPARC_GNU_VTINHERIT:
1840 1.1 skrll case R_SPARC_GNU_VTENTRY:
1841 1.14 christos return NULL;
1842 1.6 christos }
1843 1.19 christos
1844 1.6 christos if (!bfd_link_executable (info))
1845 1.6 christos {
1846 1.6 christos switch (SPARC_ELF_R_TYPE (cookie->rel->r_info))
1847 1.6 christos {
1848 1.6 christos case R_SPARC_TLS_GD_CALL:
1849 1.6 christos case R_SPARC_TLS_LDM_CALL:
1850 1.6 christos /* This reloc implicitly references __tls_get_addr. We know
1851 1.6 christos another reloc will reference the same symbol as the one
1852 1.6 christos on this reloc, so the real symbol and section will be
1853 1.16 christos gc marked when processing the other reloc. That lets
1854 1.6 christos us handle __tls_get_addr here. */
1855 1.6 christos h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1856 1.13 christos false, false, true);
1857 1.13 christos BFD_ASSERT (h != NULL);
1858 1.19 christos h->mark = 1;
1859 1.6 christos if (h->is_weakalias)
1860 1.6 christos weakdef (h)->mark = 1;
1861 1.6 christos symndx = 0;
1862 1.19 christos }
1863 1.1 skrll }
1864 1.1 skrll
1865 1.6 christos return _bfd_elf_gc_mark_hook (sec, info, cookie, h, symndx);
1866 1.6 christos }
1867 1.6 christos
1868 1.6 christos static Elf_Internal_Rela *
1869 1.6 christos sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1870 1.6 christos Elf_Internal_Rela *relend,
1871 1.6 christos bfd_vma offset)
1872 1.6 christos {
1873 1.6 christos while (rel < relend)
1874 1.6 christos {
1875 1.6 christos if (rel->r_offset == offset)
1876 1.6 christos return rel;
1877 1.6 christos rel++;
1878 1.6 christos }
1879 1.13 christos return NULL;
1880 1.13 christos }
1881 1.13 christos
1882 1.16 christos /* Remove undefined weak symbol from the dynamic symbol table if it
1883 1.13 christos is resolved to 0. */
1884 1.13 christos
1885 1.1 skrll bool
1886 1.13 christos _bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
1887 1.13 christos struct elf_link_hash_entry *h)
1888 1.13 christos {
1889 1.13 christos if (h->dynindx != -1
1890 1.13 christos && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
1891 1.13 christos _bfd_sparc_elf_hash_entry (h)))
1892 1.13 christos {
1893 1.13 christos h->dynindx = -1;
1894 1.16 christos _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1895 1.1 skrll h->dynstr_index);
1896 1.1 skrll }
1897 1.1 skrll return true;
1898 1.1 skrll }
1899 1.1 skrll
1900 1.1 skrll /* Adjust a symbol defined by a dynamic object and referenced by a
1901 1.1 skrll regular object. The current definition is in some section of the
1902 1.1 skrll dynamic object, but we're not including those sections. We have to
1903 1.16 christos change the definition to something the rest of the link can
1904 1.1 skrll understand. */
1905 1.1 skrll
1906 1.1 skrll bool
1907 1.1 skrll _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1908 1.13 christos struct elf_link_hash_entry *h)
1909 1.1 skrll {
1910 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
1911 1.3 christos asection *s, *srel;
1912 1.1 skrll
1913 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
1914 1.1 skrll BFD_ASSERT (htab != NULL);
1915 1.1 skrll
1916 1.3 christos /* Make sure we know what is going on here. */
1917 1.13 christos BFD_ASSERT (htab->elf.dynobj != NULL
1918 1.1 skrll && (h->needs_plt
1919 1.1 skrll || h->type == STT_GNU_IFUNC
1920 1.1 skrll || h->is_weakalias
1921 1.1 skrll || (h->def_dynamic
1922 1.1 skrll && h->ref_regular
1923 1.1 skrll && !h->def_regular)));
1924 1.1 skrll
1925 1.1 skrll /* If this is a function, put it in the procedure linkage table. We
1926 1.1 skrll will fill in the contents of the procedure linkage table later
1927 1.1 skrll (although we could actually do it here). The STT_NOTYPE
1928 1.1 skrll condition is a hack specifically for the Oracle libraries
1929 1.1 skrll delivered for Solaris; for some inexplicable reason, they define
1930 1.3 christos some of their functions as STT_NOTYPE when they really should be
1931 1.1 skrll STT_FUNC. */
1932 1.1 skrll if (h->type == STT_FUNC
1933 1.1 skrll || h->type == STT_GNU_IFUNC
1934 1.1 skrll || h->needs_plt
1935 1.1 skrll || (h->type == STT_NOTYPE
1936 1.1 skrll && (h->root.type == bfd_link_hash_defined
1937 1.1 skrll || h->root.type == bfd_link_hash_defweak)
1938 1.3 christos && (h->root.u.def.section->flags & SEC_CODE) != 0))
1939 1.3 christos {
1940 1.14 christos if (h->plt.refcount <= 0
1941 1.14 christos || (h->type != STT_GNU_IFUNC
1942 1.1 skrll && (SYMBOL_CALLS_LOCAL (info, h)
1943 1.1 skrll || (h->root.type == bfd_link_hash_undefweak
1944 1.1 skrll && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))))
1945 1.1 skrll {
1946 1.1 skrll /* This case can occur if we saw a WPLT30 reloc in an input
1947 1.1 skrll file, but the symbol was never referred to by a dynamic
1948 1.1 skrll object, or if all references were garbage collected. In
1949 1.1 skrll such a case, we don't actually need to build a procedure
1950 1.1 skrll linkage table, and we can just do a WDISP30 reloc instead. */
1951 1.1 skrll h->plt.offset = (bfd_vma) -1;
1952 1.16 christos h->needs_plt = 0;
1953 1.1 skrll }
1954 1.1 skrll
1955 1.1 skrll return true;
1956 1.1 skrll }
1957 1.1 skrll else
1958 1.1 skrll h->plt.offset = (bfd_vma) -1;
1959 1.1 skrll
1960 1.13 christos /* If this is a weak symbol, and there is a real definition, the
1961 1.1 skrll processor independent code will have arranged for us to see the
1962 1.13 christos real definition first, and we can just use the same value. */
1963 1.13 christos if (h->is_weakalias)
1964 1.13 christos {
1965 1.13 christos struct elf_link_hash_entry *def = weakdef (h);
1966 1.16 christos BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1967 1.1 skrll h->root.u.def.section = def->root.u.def.section;
1968 1.1 skrll h->root.u.def.value = def->root.u.def.value;
1969 1.1 skrll return true;
1970 1.1 skrll }
1971 1.1 skrll
1972 1.1 skrll /* This is a reference to a symbol defined by a dynamic object which
1973 1.1 skrll is not a function. */
1974 1.1 skrll
1975 1.1 skrll /* If we are creating a shared library, we must presume that the
1976 1.7 christos only references to the symbol are via the global offset table.
1977 1.16 christos For such cases we need not do anything here; the relocations will
1978 1.1 skrll be handled correctly by relocate_section. */
1979 1.1 skrll if (bfd_link_pic (info))
1980 1.1 skrll return true;
1981 1.1 skrll
1982 1.16 christos /* If there are no references to this symbol that do not use the
1983 1.1 skrll GOT, we don't need to generate a copy reloc. */
1984 1.3 christos if (!h->non_got_ref)
1985 1.3 christos return true;
1986 1.3 christos
1987 1.3 christos /* If -z nocopyreloc was given, we won't generate them either. */
1988 1.16 christos if (info->nocopyreloc)
1989 1.3 christos {
1990 1.3 christos h->non_got_ref = 0;
1991 1.13 christos return true;
1992 1.1 skrll }
1993 1.16 christos
1994 1.1 skrll /* If we don't find any dynamic relocs in read-only sections, then
1995 1.1 skrll we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1996 1.16 christos if (!_bfd_elf_readonly_dynrelocs (h))
1997 1.1 skrll {
1998 1.1 skrll h->non_got_ref = 0;
1999 1.1 skrll return true;
2000 1.1 skrll }
2001 1.1 skrll
2002 1.1 skrll /* We must allocate the symbol in our .dynbss section, which will
2003 1.1 skrll become part of the .bss section of the executable. There will be
2004 1.1 skrll an entry for this symbol in the .dynsym section. The dynamic
2005 1.1 skrll object will contain position independent code, so all references
2006 1.1 skrll from the dynamic object to this symbol will go through the global
2007 1.1 skrll offset table. The dynamic linker will use the .dynsym entry to
2008 1.1 skrll determine the address it must put in the global offset table, so
2009 1.1 skrll both the dynamic object and the regular object will refer to the
2010 1.1 skrll same memory location for the variable. */
2011 1.1 skrll
2012 1.1 skrll /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2013 1.13 christos to copy the initial value out of the dynamic object and into the
2014 1.13 christos runtime process image. We need to remember the offset into the
2015 1.13 christos .rel.bss section we are going to use. */
2016 1.13 christos if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2017 1.13 christos {
2018 1.13 christos s = htab->elf.sdynrelro;
2019 1.13 christos srel = htab->elf.sreldynrelro;
2020 1.13 christos }
2021 1.13 christos else
2022 1.13 christos {
2023 1.6 christos s = htab->elf.sdynbss;
2024 1.1 skrll srel = htab->elf.srelbss;
2025 1.13 christos }
2026 1.1 skrll if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2027 1.1 skrll {
2028 1.1 skrll srel->size += SPARC_ELF_RELA_BYTES (htab);
2029 1.7 christos h->needs_copy = 1;
2030 1.1 skrll }
2031 1.1 skrll
2032 1.1 skrll return _bfd_elf_adjust_dynamic_copy (info, h, s);
2033 1.1 skrll }
2034 1.1 skrll
2035 1.16 christos /* Allocate space in .plt, .got and associated reloc sections for
2036 1.6 christos dynamic relocs. */
2037 1.1 skrll
2038 1.1 skrll static bool
2039 1.1 skrll allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2040 1.1 skrll {
2041 1.13 christos struct bfd_link_info *info;
2042 1.16 christos struct _bfd_sparc_elf_link_hash_table *htab;
2043 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *eh;
2044 1.1 skrll struct elf_dyn_relocs *p;
2045 1.16 christos bool resolved_to_zero;
2046 1.1 skrll
2047 1.1 skrll if (h->root.type == bfd_link_hash_indirect)
2048 1.1 skrll return true;
2049 1.3 christos
2050 1.1 skrll info = (struct bfd_link_info *) inf;
2051 1.13 christos htab = _bfd_sparc_elf_hash_table (info);
2052 1.13 christos BFD_ASSERT (htab != NULL);
2053 1.13 christos
2054 1.3 christos eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2055 1.3 christos resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2056 1.3 christos
2057 1.3 christos if ((htab->elf.dynamic_sections_created
2058 1.3 christos && h->plt.refcount > 0)
2059 1.1 skrll || (h->type == STT_GNU_IFUNC
2060 1.14 christos && h->def_regular
2061 1.14 christos && h->ref_regular))
2062 1.13 christos {
2063 1.14 christos /* Undefined weak syms won't yet be marked as dynamic. */
2064 1.14 christos if (h->root.type == bfd_link_hash_undefweak
2065 1.1 skrll && !resolved_to_zero
2066 1.1 skrll && h->dynindx == -1
2067 1.16 christos && !h->forced_local)
2068 1.1 skrll {
2069 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2070 1.7 christos return false;
2071 1.3 christos }
2072 1.3 christos
2073 1.1 skrll if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
2074 1.3 christos || (h->type == STT_GNU_IFUNC
2075 1.3 christos && h->def_regular))
2076 1.3 christos {
2077 1.3 christos asection *s = htab->elf.splt;
2078 1.1 skrll
2079 1.1 skrll if (s == NULL)
2080 1.1 skrll s = htab->elf.iplt;
2081 1.1 skrll
2082 1.1 skrll /* Allocate room for the header. */
2083 1.1 skrll if (s->size == 0)
2084 1.1 skrll {
2085 1.16 christos s->size = htab->plt_header_size;
2086 1.16 christos
2087 1.1 skrll /* Allocate space for the .rela.plt.unloaded relocations. */
2088 1.1 skrll if (htab->elf.target_os == is_vxworks
2089 1.1 skrll && !bfd_link_pic (info))
2090 1.1 skrll htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2091 1.1 skrll }
2092 1.1 skrll
2093 1.1 skrll /* The procedure linkage table size is bounded by the magnitude
2094 1.1 skrll of the offset we can describe in the entry. */
2095 1.1 skrll if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
2096 1.16 christos (((bfd_vma)1 << 31) << 1) : 0x400000))
2097 1.1 skrll {
2098 1.1 skrll bfd_set_error (bfd_error_bad_value);
2099 1.1 skrll return false;
2100 1.1 skrll }
2101 1.1 skrll
2102 1.1 skrll if (SPARC_ELF_WORD_BYTES(htab) == 8
2103 1.1 skrll && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2104 1.1 skrll {
2105 1.1 skrll bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2106 1.1 skrll
2107 1.1 skrll
2108 1.1 skrll off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2109 1.1 skrll
2110 1.1 skrll h->plt.offset = (s->size - (off * 8));
2111 1.1 skrll }
2112 1.1 skrll else
2113 1.1 skrll h->plt.offset = s->size;
2114 1.1 skrll
2115 1.1 skrll /* If this symbol is not defined in a regular file, and we are
2116 1.1 skrll not generating a shared library, then set the symbol to this
2117 1.7 christos location in the .plt. This is required to make function
2118 1.1 skrll pointers compare as equal between the normal executable and
2119 1.1 skrll the shared library. */
2120 1.1 skrll if (! bfd_link_pic (info)
2121 1.1 skrll && !h->def_regular)
2122 1.1 skrll {
2123 1.1 skrll h->root.u.def.section = s;
2124 1.1 skrll h->root.u.def.value = h->plt.offset;
2125 1.1 skrll }
2126 1.1 skrll
2127 1.13 christos /* Make room for this entry. */
2128 1.13 christos s->size += htab->plt_entry_size;
2129 1.13 christos
2130 1.13 christos /* There should be no PLT relocations against resolved undefined
2131 1.13 christos weak symbols in the executable. */
2132 1.13 christos if (!resolved_to_zero)
2133 1.13 christos {
2134 1.13 christos /* We also need to make an entry in the .rela.plt section. */
2135 1.13 christos if (s == htab->elf.splt)
2136 1.13 christos htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2137 1.1 skrll else
2138 1.16 christos htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2139 1.1 skrll }
2140 1.1 skrll
2141 1.3 christos if (htab->elf.target_os == is_vxworks)
2142 1.1 skrll {
2143 1.1 skrll /* Allocate space for the .got.plt entry. */
2144 1.7 christos htab->elf.sgotplt->size += 4;
2145 1.1 skrll
2146 1.1 skrll /* ...and for the .rela.plt.unloaded relocations. */
2147 1.1 skrll if (!bfd_link_pic (info))
2148 1.1 skrll htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2149 1.1 skrll }
2150 1.1 skrll }
2151 1.1 skrll else
2152 1.1 skrll {
2153 1.1 skrll h->plt.offset = (bfd_vma) -1;
2154 1.1 skrll h->needs_plt = 0;
2155 1.1 skrll }
2156 1.1 skrll }
2157 1.1 skrll else
2158 1.1 skrll {
2159 1.1 skrll h->plt.offset = (bfd_vma) -1;
2160 1.1 skrll h->needs_plt = 0;
2161 1.1 skrll }
2162 1.1 skrll
2163 1.14 christos /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2164 1.1 skrll make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2165 1.1 skrll if (h->got.refcount > 0
2166 1.1 skrll && bfd_link_executable (info)
2167 1.1 skrll && h->dynindx == -1
2168 1.1 skrll && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2169 1.1 skrll h->got.offset = (bfd_vma) -1;
2170 1.16 christos else if (h->got.refcount > 0)
2171 1.1 skrll {
2172 1.1 skrll asection *s;
2173 1.14 christos bool dyn;
2174 1.14 christos int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2175 1.13 christos
2176 1.14 christos /* Undefined weak syms won't yet be marked as dynamic. */
2177 1.14 christos if (h->root.type == bfd_link_hash_undefweak
2178 1.1 skrll && !resolved_to_zero
2179 1.1 skrll && h->dynindx == -1
2180 1.16 christos && !h->forced_local)
2181 1.1 skrll {
2182 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2183 1.3 christos return false;
2184 1.1 skrll }
2185 1.1 skrll
2186 1.1 skrll s = htab->elf.sgot;
2187 1.1 skrll h->got.offset = s->size;
2188 1.1 skrll s->size += SPARC_ELF_WORD_BYTES (htab);
2189 1.1 skrll /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2190 1.1 skrll if (tls_type == GOT_TLS_GD)
2191 1.14 christos s->size += SPARC_ELF_WORD_BYTES (htab);
2192 1.1 skrll dyn = htab->elf.dynamic_sections_created;
2193 1.3 christos /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2194 1.3 christos R_SPARC_TLS_GD_{HI22,LO10} needs one if local and two if global. */
2195 1.3 christos if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
2196 1.1 skrll || tls_type == GOT_TLS_IE
2197 1.3 christos || h->type == STT_GNU_IFUNC)
2198 1.14 christos htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2199 1.14 christos else if (tls_type == GOT_TLS_GD)
2200 1.14 christos htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
2201 1.14 christos else if ((WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
2202 1.14 christos /* Even if the symbol isn't dynamic, we may generate a
2203 1.14 christos reloc for the dynamic linker in PIC mode. */
2204 1.14 christos || (h->dynindx == -1
2205 1.14 christos && !h->forced_local
2206 1.14 christos && h->root.type != bfd_link_hash_undefweak
2207 1.14 christos && bfd_link_pic (info)))
2208 1.14 christos /* No dynamic relocations are needed against resolved
2209 1.14 christos undefined weak symbols in an executable. */
2210 1.3 christos && !(h->root.type == bfd_link_hash_undefweak
2211 1.1 skrll && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2212 1.1 skrll || resolved_to_zero)))
2213 1.1 skrll htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2214 1.1 skrll }
2215 1.16 christos else
2216 1.16 christos h->got.offset = (bfd_vma) -1;
2217 1.1 skrll
2218 1.1 skrll if (h->dyn_relocs == NULL)
2219 1.1 skrll return true;
2220 1.1 skrll
2221 1.1 skrll /* In the shared -Bsymbolic case, discard space allocated for
2222 1.1 skrll dynamic pc-relative relocs against symbols which turn out to be
2223 1.1 skrll defined in regular objects. For the normal shared case, discard
2224 1.7 christos space for pc-relative relocs that have become local due to symbol
2225 1.1 skrll visibility changes. */
2226 1.3 christos
2227 1.1 skrll if (bfd_link_pic (info))
2228 1.13 christos {
2229 1.1 skrll if (SYMBOL_CALLS_LOCAL (info, h))
2230 1.16 christos {
2231 1.1 skrll struct elf_dyn_relocs **pp;
2232 1.1 skrll
2233 1.1 skrll for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
2234 1.1 skrll {
2235 1.1 skrll p->count -= p->pc_count;
2236 1.1 skrll p->pc_count = 0;
2237 1.1 skrll if (p->count == 0)
2238 1.1 skrll *pp = p->next;
2239 1.1 skrll else
2240 1.1 skrll pp = &p->next;
2241 1.16 christos }
2242 1.1 skrll }
2243 1.13 christos
2244 1.1 skrll if (htab->elf.target_os == is_vxworks)
2245 1.16 christos {
2246 1.1 skrll struct elf_dyn_relocs **pp;
2247 1.1 skrll
2248 1.1 skrll for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
2249 1.1 skrll {
2250 1.1 skrll if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2251 1.1 skrll *pp = p->next;
2252 1.1 skrll else
2253 1.1 skrll pp = &p->next;
2254 1.1 skrll }
2255 1.13 christos }
2256 1.16 christos
2257 1.1 skrll /* Also discard relocs on undefined weak syms with non-default
2258 1.1 skrll visibility or in PIE. */
2259 1.13 christos if (h->dyn_relocs != NULL
2260 1.13 christos && h->root.type == bfd_link_hash_undefweak)
2261 1.13 christos {
2262 1.13 christos /* An undefined weak symbol is never
2263 1.13 christos bound locally in a shared library. */
2264 1.13 christos
2265 1.13 christos if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2266 1.13 christos || resolved_to_zero)
2267 1.13 christos {
2268 1.13 christos if (h->non_got_ref)
2269 1.13 christos {
2270 1.13 christos /* Keep dynamic non-GOT/non-PLT relocation so that we
2271 1.16 christos can branch to 0 without PLT. */
2272 1.13 christos struct elf_dyn_relocs **pp;
2273 1.13 christos
2274 1.13 christos for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
2275 1.13 christos if (p->pc_count == 0)
2276 1.13 christos *pp = p->next;
2277 1.13 christos else
2278 1.13 christos {
2279 1.13 christos /* Remove other relocations. */
2280 1.13 christos p->count = p->pc_count;
2281 1.16 christos pp = &p->next;
2282 1.13 christos }
2283 1.13 christos
2284 1.13 christos if (h->dyn_relocs != NULL)
2285 1.13 christos {
2286 1.13 christos /* Make sure undefined weak symbols are output
2287 1.16 christos as dynamic symbols in PIEs for dynamic non-GOT
2288 1.13 christos non-PLT reloations. */
2289 1.13 christos if (! bfd_elf_link_record_dynamic_symbol (info, h))
2290 1.13 christos return false;
2291 1.16 christos }
2292 1.13 christos }
2293 1.1 skrll else
2294 1.1 skrll h->dyn_relocs = NULL;
2295 1.1 skrll }
2296 1.1 skrll
2297 1.1 skrll /* Make sure undefined weak symbols are output as a dynamic
2298 1.1 skrll symbol in PIEs. */
2299 1.1 skrll else if (h->dynindx == -1
2300 1.16 christos && !h->forced_local)
2301 1.1 skrll {
2302 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2303 1.1 skrll return false;
2304 1.1 skrll }
2305 1.1 skrll }
2306 1.1 skrll }
2307 1.1 skrll else
2308 1.1 skrll {
2309 1.1 skrll /* For the non-shared case, discard space for relocs against
2310 1.13 christos symbols which turn out to need copy relocs or are not
2311 1.13 christos dynamic. */
2312 1.13 christos
2313 1.1 skrll if ((!h->non_got_ref
2314 1.1 skrll || (h->root.type == bfd_link_hash_undefweak
2315 1.1 skrll && !resolved_to_zero))
2316 1.1 skrll && ((h->def_dynamic
2317 1.1 skrll && !h->def_regular)
2318 1.1 skrll || (htab->elf.dynamic_sections_created
2319 1.14 christos && (h->root.type == bfd_link_hash_undefweak
2320 1.14 christos || h->root.type == bfd_link_hash_undefined))))
2321 1.13 christos {
2322 1.14 christos /* Undefined weak syms won't yet be marked as dynamic. */
2323 1.14 christos if (h->root.type == bfd_link_hash_undefweak
2324 1.1 skrll && !resolved_to_zero
2325 1.1 skrll && h->dynindx == -1
2326 1.16 christos && !h->forced_local)
2327 1.1 skrll {
2328 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2329 1.1 skrll return false;
2330 1.1 skrll }
2331 1.1 skrll
2332 1.1 skrll /* If that succeeded, we know we'll be keeping all the
2333 1.1 skrll relocs. */
2334 1.1 skrll if (h->dynindx != -1)
2335 1.16 christos goto keep;
2336 1.1 skrll }
2337 1.1 skrll
2338 1.1 skrll h->dyn_relocs = NULL;
2339 1.1 skrll
2340 1.1 skrll keep: ;
2341 1.16 christos }
2342 1.1 skrll
2343 1.1 skrll /* Finally, allocate space. */
2344 1.1 skrll for (p = h->dyn_relocs; p != NULL; p = p->next)
2345 1.1 skrll {
2346 1.1 skrll asection *sreloc = elf_section_data (p->sec)->sreloc;
2347 1.16 christos sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2348 1.1 skrll }
2349 1.1 skrll
2350 1.3 christos return true;
2351 1.3 christos }
2352 1.3 christos
2353 1.16 christos /* Allocate space in .plt, .got and associated reloc sections for
2354 1.3 christos local dynamic relocs. */
2355 1.3 christos
2356 1.3 christos static int
2357 1.3 christos allocate_local_dynrelocs (void **slot, void *inf)
2358 1.3 christos {
2359 1.3 christos struct elf_link_hash_entry *h
2360 1.3 christos = (struct elf_link_hash_entry *) *slot;
2361 1.3 christos
2362 1.3 christos if (h->type != STT_GNU_IFUNC
2363 1.3 christos || !h->def_regular
2364 1.3 christos || !h->ref_regular
2365 1.3 christos || !h->forced_local
2366 1.3 christos || h->root.type != bfd_link_hash_defined)
2367 1.3 christos abort ();
2368 1.3 christos
2369 1.1 skrll return allocate_dynrelocs (h, inf);
2370 1.1 skrll }
2371 1.1 skrll
2372 1.16 christos /* Return true if the dynamic symbol for a given section should be
2373 1.1 skrll omitted when creating a shared library. */
2374 1.1 skrll
2375 1.1 skrll bool
2376 1.1 skrll _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2377 1.1 skrll struct bfd_link_info *info,
2378 1.1 skrll asection *p)
2379 1.1 skrll {
2380 1.1 skrll /* We keep the .got section symbol so that explicit relocations
2381 1.16 christos against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2382 1.1 skrll can be turned into relocations against the .got symbol. */
2383 1.14 christos if (strcmp (p->name, ".got") == 0)
2384 1.1 skrll return false;
2385 1.1 skrll
2386 1.1 skrll return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2387 1.1 skrll }
2388 1.16 christos
2389 1.18 christos /* Set the sizes of the dynamic sections. */
2390 1.18 christos
2391 1.1 skrll bool
2392 1.1 skrll _bfd_sparc_elf_late_size_sections (bfd *output_bfd,
2393 1.1 skrll struct bfd_link_info *info)
2394 1.1 skrll {
2395 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
2396 1.1 skrll bfd *dynobj;
2397 1.1 skrll asection *s;
2398 1.3 christos bfd *ibfd;
2399 1.1 skrll
2400 1.18 christos htab = _bfd_sparc_elf_hash_table (info);
2401 1.18 christos BFD_ASSERT (htab != NULL);
2402 1.1 skrll dynobj = htab->elf.dynobj;
2403 1.1 skrll if (dynobj == NULL)
2404 1.1 skrll return true;
2405 1.1 skrll
2406 1.7 christos if (elf_hash_table (info)->dynamic_sections_created)
2407 1.1 skrll {
2408 1.19 christos /* Set the contents of the .interp section to the interpreter. */
2409 1.1 skrll if (bfd_link_executable (info) && !info->nointerp)
2410 1.1 skrll {
2411 1.1 skrll s = elf_hash_table (info)->interp;
2412 1.18 christos BFD_ASSERT (s != NULL);
2413 1.1 skrll s->size = htab->dynamic_interpreter_size;
2414 1.1 skrll s->contents = (unsigned char *) htab->dynamic_interpreter;
2415 1.1 skrll s->alloced = 1;
2416 1.1 skrll }
2417 1.1 skrll }
2418 1.7 christos
2419 1.1 skrll /* Set up .got offsets for local syms, and space for local dynamic
2420 1.1 skrll relocs. */
2421 1.1 skrll for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2422 1.1 skrll {
2423 1.1 skrll bfd_signed_vma *local_got;
2424 1.1 skrll bfd_signed_vma *end_local_got;
2425 1.1 skrll char *local_tls_type;
2426 1.1 skrll bfd_size_type locsymcount;
2427 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
2428 1.1 skrll asection *srel;
2429 1.1 skrll
2430 1.1 skrll if (! is_sparc_elf (ibfd))
2431 1.1 skrll continue;
2432 1.13 christos
2433 1.1 skrll for (s = ibfd->sections; s != NULL; s = s->next)
2434 1.1 skrll {
2435 1.1 skrll struct elf_dyn_relocs *p;
2436 1.1 skrll
2437 1.1 skrll for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2438 1.1 skrll {
2439 1.1 skrll if (!bfd_is_abs_section (p->sec)
2440 1.1 skrll && bfd_is_abs_section (p->sec->output_section))
2441 1.1 skrll {
2442 1.1 skrll /* Input section has been discarded, either because
2443 1.1 skrll it is a copy of a linkonce section or due to
2444 1.16 christos linker script /DISCARD/, so we'll be discarding
2445 1.1 skrll the relocs too. */
2446 1.1 skrll }
2447 1.1 skrll else if (htab->elf.target_os == is_vxworks
2448 1.1 skrll && strcmp (p->sec->output_section->name,
2449 1.1 skrll ".tls_vars") == 0)
2450 1.1 skrll {
2451 1.1 skrll /* Relocations in vxworks .tls_vars sections are
2452 1.1 skrll handled specially by the loader. */
2453 1.1 skrll }
2454 1.3 christos else if (p->count != 0)
2455 1.3 christos {
2456 1.1 skrll srel = elf_section_data (p->sec)->sreloc;
2457 1.1 skrll if (!htab->elf.dynamic_sections_created)
2458 1.10 christos srel = htab->elf.irelplt;
2459 1.10 christos srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2460 1.14 christos if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2461 1.13 christos {
2462 1.10 christos info->flags |= DF_TEXTREL;
2463 1.1 skrll info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2464 1.1 skrll p->sec->owner, p->sec);
2465 1.1 skrll }
2466 1.1 skrll }
2467 1.1 skrll }
2468 1.1 skrll }
2469 1.1 skrll
2470 1.1 skrll local_got = elf_local_got_refcounts (ibfd);
2471 1.1 skrll if (!local_got)
2472 1.1 skrll continue;
2473 1.1 skrll
2474 1.1 skrll symtab_hdr = &elf_symtab_hdr (ibfd);
2475 1.3 christos locsymcount = symtab_hdr->sh_info;
2476 1.3 christos end_local_got = local_got + locsymcount;
2477 1.1 skrll local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2478 1.1 skrll s = htab->elf.sgot;
2479 1.1 skrll srel = htab->elf.srelgot;
2480 1.1 skrll for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2481 1.1 skrll {
2482 1.1 skrll if (*local_got > 0)
2483 1.1 skrll {
2484 1.1 skrll *local_got = s->size;
2485 1.7 christos s->size += SPARC_ELF_WORD_BYTES (htab);
2486 1.1 skrll if (*local_tls_type == GOT_TLS_GD)
2487 1.1 skrll s->size += SPARC_ELF_WORD_BYTES (htab);
2488 1.1 skrll if (bfd_link_pic (info)
2489 1.1 skrll || *local_tls_type == GOT_TLS_GD
2490 1.1 skrll || *local_tls_type == GOT_TLS_IE)
2491 1.1 skrll srel->size += SPARC_ELF_RELA_BYTES (htab);
2492 1.1 skrll }
2493 1.1 skrll else
2494 1.1 skrll *local_got = (bfd_vma) -1;
2495 1.1 skrll }
2496 1.1 skrll }
2497 1.1 skrll
2498 1.1 skrll if (htab->tls_ldm_got.refcount > 0)
2499 1.3 christos {
2500 1.3 christos /* Allocate 2 got entries and 1 dynamic reloc for
2501 1.3 christos R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2502 1.1 skrll htab->tls_ldm_got.offset = htab->elf.sgot->size;
2503 1.1 skrll htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2504 1.1 skrll htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2505 1.1 skrll }
2506 1.1 skrll else
2507 1.1 skrll htab->tls_ldm_got.offset = -1;
2508 1.6 christos
2509 1.1 skrll /* Allocate global sym .plt and .got entries, and space for global
2510 1.3 christos sym dynamic relocs. */
2511 1.3 christos elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2512 1.3 christos
2513 1.1 skrll /* Allocate .plt and .got entries, and space for local symbols. */
2514 1.16 christos htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2515 1.1 skrll
2516 1.1 skrll if (! ABI_64_P (output_bfd)
2517 1.1 skrll && htab->elf.target_os != is_vxworks
2518 1.3 christos && elf_hash_table (info)->dynamic_sections_created)
2519 1.3 christos {
2520 1.1 skrll /* Make space for the trailing nop in .plt. */
2521 1.1 skrll if (htab->elf.splt->size > 0)
2522 1.1 skrll htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2523 1.1 skrll
2524 1.1 skrll /* If the .got section is more than 0x1000 bytes, we add
2525 1.1 skrll 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2526 1.3 christos bit relocations have a greater chance of working.
2527 1.1 skrll
2528 1.1 skrll FIXME: Make this optimization work for 64-bit too. */
2529 1.1 skrll if (htab->elf.sgot->size >= 0x1000
2530 1.1 skrll && elf_hash_table (info)->hgot->root.u.def.value == 0)
2531 1.1 skrll elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2532 1.1 skrll }
2533 1.1 skrll
2534 1.1 skrll /* The check_relocs and adjust_dynamic_symbol entry points have
2535 1.1 skrll determined the sizes of the various dynamic sections. Allocate
2536 1.1 skrll memory for them. */
2537 1.1 skrll for (s = dynobj->sections; s != NULL; s = s->next)
2538 1.1 skrll {
2539 1.3 christos if ((s->flags & SEC_LINKER_CREATED) == 0)
2540 1.3 christos continue;
2541 1.13 christos
2542 1.13 christos if (s == htab->elf.splt
2543 1.3 christos || s == htab->elf.sgot
2544 1.3 christos || s == htab->elf.sdynbss
2545 1.1 skrll || s == htab->elf.sdynrelro
2546 1.1 skrll || s == htab->elf.iplt
2547 1.1 skrll || s == htab->elf.sgotplt)
2548 1.1 skrll {
2549 1.16 christos /* Strip this section if we don't need it; see the
2550 1.1 skrll comment below. */
2551 1.1 skrll }
2552 1.1 skrll else if (startswith (s->name, ".rela"))
2553 1.1 skrll {
2554 1.1 skrll if (s->size != 0)
2555 1.1 skrll {
2556 1.1 skrll /* We use the reloc_count field as a counter if we need
2557 1.1 skrll to copy relocs into the output file. */
2558 1.1 skrll s->reloc_count = 0;
2559 1.1 skrll }
2560 1.1 skrll }
2561 1.1 skrll else
2562 1.1 skrll {
2563 1.1 skrll /* It's not one of our sections. */
2564 1.1 skrll continue;
2565 1.1 skrll }
2566 1.1 skrll
2567 1.1 skrll if (s->size == 0)
2568 1.1 skrll {
2569 1.1 skrll /* If we don't need this section, strip it from the
2570 1.1 skrll output file. This is mostly to handle .rela.bss and
2571 1.1 skrll .rela.plt. We must create both sections in
2572 1.1 skrll create_dynamic_sections, because they must be created
2573 1.1 skrll before the linker maps input sections to output
2574 1.1 skrll sections. The linker does that before
2575 1.1 skrll adjust_dynamic_symbol is called, and it is that
2576 1.1 skrll function which decides whether anything needs to go
2577 1.1 skrll into these sections. */
2578 1.1 skrll s->flags |= SEC_EXCLUDE;
2579 1.1 skrll continue;
2580 1.1 skrll }
2581 1.1 skrll
2582 1.1 skrll if ((s->flags & SEC_HAS_CONTENTS) == 0)
2583 1.1 skrll continue;
2584 1.1 skrll
2585 1.1 skrll /* Allocate memory for the section contents. Zero the memory
2586 1.1 skrll for the benefit of .rela.plt, which has 4 unused entries
2587 1.16 christos at the beginning, and we don't want garbage. */
2588 1.18 christos s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2589 1.1 skrll if (s->contents == NULL)
2590 1.1 skrll return false;
2591 1.1 skrll s->alloced = 1;
2592 1.1 skrll }
2593 1.1 skrll
2594 1.1 skrll if (elf_hash_table (info)->dynamic_sections_created)
2595 1.1 skrll {
2596 1.1 skrll /* Add some entries to the .dynamic section. We fill in the
2597 1.1 skrll values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2598 1.1 skrll must add the entries now so that we get the correct size for
2599 1.1 skrll the .dynamic section. The DT_DEBUG entry is filled in by the
2600 1.1 skrll dynamic linker and used by the debugger. */
2601 1.16 christos #define add_dynamic_entry(TAG, VAL) \
2602 1.16 christos _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2603 1.16 christos
2604 1.1 skrll if (!_bfd_elf_maybe_vxworks_add_dynamic_tags (output_bfd, info,
2605 1.1 skrll true))
2606 1.1 skrll return false;
2607 1.1 skrll
2608 1.1 skrll if (ABI_64_P (output_bfd))
2609 1.1 skrll {
2610 1.1 skrll int reg;
2611 1.1 skrll struct _bfd_sparc_elf_app_reg * app_regs;
2612 1.1 skrll struct elf_strtab_hash *dynstr;
2613 1.1 skrll struct elf_link_hash_table *eht = elf_hash_table (info);
2614 1.1 skrll
2615 1.1 skrll /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2616 1.1 skrll entries if needed. */
2617 1.1 skrll app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2618 1.1 skrll dynstr = eht->dynstr;
2619 1.1 skrll
2620 1.1 skrll for (reg = 0; reg < 4; reg++)
2621 1.1 skrll if (app_regs [reg].name != NULL)
2622 1.1 skrll {
2623 1.16 christos struct elf_link_local_dynamic_entry *entry, *e;
2624 1.1 skrll
2625 1.1 skrll if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2626 1.1 skrll return false;
2627 1.1 skrll
2628 1.16 christos entry = (struct elf_link_local_dynamic_entry *)
2629 1.1 skrll bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2630 1.1 skrll if (entry == NULL)
2631 1.1 skrll return false;
2632 1.1 skrll
2633 1.1 skrll /* We cheat here a little bit: the symbol will not be local, so we
2634 1.1 skrll put it at the end of the dynlocal linked list. We will fix it
2635 1.1 skrll later on, as we have to fix other fields anyway. */
2636 1.1 skrll entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2637 1.16 christos entry->isym.st_size = 0;
2638 1.1 skrll if (*app_regs [reg].name != '\0')
2639 1.1 skrll entry->isym.st_name
2640 1.1 skrll = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, false);
2641 1.1 skrll else
2642 1.1 skrll entry->isym.st_name = 0;
2643 1.1 skrll entry->isym.st_other = 0;
2644 1.6 christos entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2645 1.1 skrll STT_REGISTER);
2646 1.1 skrll entry->isym.st_shndx = app_regs [reg].shndx;
2647 1.1 skrll entry->isym.st_target_internal = 0;
2648 1.1 skrll entry->next = NULL;
2649 1.1 skrll entry->input_bfd = output_bfd;
2650 1.1 skrll entry->input_indx = -1;
2651 1.1 skrll
2652 1.1 skrll if (eht->dynlocal == NULL)
2653 1.1 skrll eht->dynlocal = entry;
2654 1.1 skrll else
2655 1.1 skrll {
2656 1.1 skrll for (e = eht->dynlocal; e->next; e = e->next)
2657 1.1 skrll ;
2658 1.1 skrll e->next = entry;
2659 1.1 skrll }
2660 1.1 skrll eht->dynsymcount++;
2661 1.1 skrll }
2662 1.1 skrll }
2663 1.16 christos }
2664 1.1 skrll #undef add_dynamic_entry
2665 1.1 skrll
2666 1.16 christos return true;
2667 1.1 skrll }
2668 1.1 skrll
2669 1.18 christos bool
2671 1.18 christos _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2672 1.18 christos {
2673 1.18 christos struct _bfd_sparc_elf_section_data *sdata;
2674 1.18 christos
2675 1.1 skrll sdata = bfd_zalloc (abfd, sizeof (*sdata));
2676 1.1 skrll if (sdata == NULL)
2677 1.1 skrll return false;
2678 1.1 skrll sec->used_by_bfd = sdata;
2679 1.16 christos
2680 1.1 skrll return _bfd_elf_new_section_hook (abfd, sec);
2681 1.1 skrll }
2682 1.1 skrll
2683 1.16 christos bool
2684 1.1 skrll _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2685 1.7 christos struct bfd_section *section,
2686 1.18 christos struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2687 1.18 christos bool *again)
2688 1.3 christos {
2689 1.16 christos if (bfd_link_relocatable (link_info))
2690 1.1 skrll link_info->callbacks->fatal
2691 1.16 christos (_("%P: --relax and -r may not be used together\n"));
2692 1.1 skrll
2693 1.1 skrll *again = false;
2694 1.1 skrll sec_do_relax (section) = 1;
2695 1.1 skrll return true;
2696 1.1 skrll }
2697 1.1 skrll
2698 1.1 skrll /* Return the base VMA address which should be subtracted from real addresses
2700 1.1 skrll when resolving @dtpoff relocation.
2701 1.1 skrll This is PT_TLS segment p_vaddr. */
2702 1.1 skrll
2703 1.1 skrll static bfd_vma
2704 1.1 skrll dtpoff_base (struct bfd_link_info *info)
2705 1.1 skrll {
2706 1.1 skrll /* If tls_sec is NULL, we should have signalled an error already. */
2707 1.1 skrll if (elf_hash_table (info)->tls_sec == NULL)
2708 1.1 skrll return 0;
2709 1.1 skrll return elf_hash_table (info)->tls_sec->vma;
2710 1.1 skrll }
2711 1.1 skrll
2712 1.1 skrll /* Return the relocation value for @tpoff relocation
2713 1.1 skrll if STT_TLS virtual address is ADDRESS. */
2714 1.19 christos
2715 1.3 christos static bfd_vma
2716 1.1 skrll tpoff (struct bfd_link_info *info, bfd_vma address)
2717 1.1 skrll {
2718 1.1 skrll struct elf_link_hash_table *htab = elf_hash_table (info);
2719 1.1 skrll elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2720 1.3 christos bfd_vma static_tls_size;
2721 1.3 christos
2722 1.3 christos /* If tls_sec is NULL, we should have signalled an error already. */
2723 1.3 christos if (htab->tls_sec == NULL)
2724 1.3 christos return 0;
2725 1.3 christos
2726 1.3 christos /* Consider special static TLS alignment requirements. */
2727 1.3 christos static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2728 1.3 christos return address - static_tls_size - htab->tls_sec->vma;
2729 1.3 christos }
2730 1.3 christos
2731 1.3 christos /* Return the relocation value for a %gdop relocation. */
2732 1.3 christos
2733 1.3 christos static bfd_vma
2734 1.3 christos gdopoff (struct bfd_link_info *info, bfd_vma address)
2735 1.3 christos {
2736 1.3 christos struct elf_link_hash_table *htab = elf_hash_table (info);
2737 1.3 christos bfd_vma got_base;
2738 1.3 christos
2739 1.1 skrll got_base = (htab->hgot->root.u.def.value
2740 1.1 skrll + htab->hgot->root.u.def.section->output_offset
2741 1.13 christos + htab->hgot->root.u.def.section->output_section->vma);
2742 1.13 christos
2743 1.13 christos return address - got_base;
2744 1.13 christos }
2745 1.16 christos
2746 1.13 christos /* Return whether H is local and its ADDRESS is within 4G of
2747 1.13 christos _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2748 1.13 christos sethi, xor sequence. */
2749 1.13 christos
2750 1.13 christos static bool
2751 1.16 christos gdop_relative_offset_ok (struct bfd_link_info *info,
2752 1.13 christos struct elf_link_hash_entry *h,
2753 1.13 christos bfd_vma address ATTRIBUTE_UNUSED)
2754 1.13 christos {
2755 1.13 christos if (!SYMBOL_REFERENCES_LOCAL (info, h))
2756 1.13 christos return false;
2757 1.13 christos /* If H is undefined, ADDRESS will be zero. We can't allow a
2758 1.13 christos relative offset to "zero" when producing PIEs or shared libs.
2759 1.13 christos Note that to get here with an undefined symbol it must also be
2760 1.16 christos hidden or internal visibility. */
2761 1.13 christos if (bfd_link_pic (info)
2762 1.13 christos && h != NULL
2763 1.13 christos && (h->root.type == bfd_link_hash_undefweak
2764 1.16 christos || h->root.type == bfd_link_hash_undefined))
2765 1.13 christos return false;
2766 1.13 christos #ifdef BFD64
2767 1.13 christos return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2768 1.1 skrll #else
2769 1.1 skrll return true;
2770 1.16 christos #endif
2771 1.1 skrll }
2772 1.1 skrll
2773 1.1 skrll /* Relocate a SPARC ELF section. */
2774 1.1 skrll
2775 1.1 skrll int
2776 1.1 skrll _bfd_sparc_elf_relocate_section (bfd *output_bfd,
2777 1.1 skrll struct bfd_link_info *info,
2778 1.1 skrll bfd *input_bfd,
2779 1.1 skrll asection *input_section,
2780 1.1 skrll bfd_byte *contents,
2781 1.1 skrll Elf_Internal_Rela *relocs,
2782 1.1 skrll Elf_Internal_Sym *local_syms,
2783 1.1 skrll asection **local_sections)
2784 1.1 skrll {
2785 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
2786 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
2787 1.1 skrll struct elf_link_hash_entry **sym_hashes;
2788 1.1 skrll bfd_vma *local_got_offsets;
2789 1.16 christos bfd_vma got_base;
2790 1.1 skrll asection *sreloc;
2791 1.1 skrll Elf_Internal_Rela *rel;
2792 1.3 christos Elf_Internal_Rela *relend;
2793 1.1 skrll int num_relocs;
2794 1.1 skrll bool is_vxworks_tls;
2795 1.1 skrll
2796 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
2797 1.1 skrll BFD_ASSERT (htab != NULL);
2798 1.1 skrll symtab_hdr = &elf_symtab_hdr (input_bfd);
2799 1.1 skrll sym_hashes = elf_sym_hashes (input_bfd);
2800 1.1 skrll local_got_offsets = elf_local_got_offsets (input_bfd);
2801 1.1 skrll
2802 1.1 skrll if (elf_hash_table (info)->hgot == NULL)
2803 1.1 skrll got_base = 0;
2804 1.1 skrll else
2805 1.16 christos got_base = elf_hash_table (info)->hgot->root.u.def.value;
2806 1.16 christos
2807 1.1 skrll sreloc = elf_section_data (input_section)->sreloc;
2808 1.1 skrll /* We have to handle relocations in vxworks .tls_vars sections
2809 1.1 skrll specially, because the dynamic loader is 'weird'. */
2810 1.1 skrll is_vxworks_tls = (htab->elf.target_os == is_vxworks
2811 1.1 skrll && bfd_link_pic (info)
2812 1.3 christos && !strcmp (input_section->output_section->name,
2813 1.1 skrll ".tls_vars"));
2814 1.1 skrll
2815 1.1 skrll rel = relocs;
2816 1.1 skrll if (ABI_64_P (output_bfd))
2817 1.1 skrll num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
2818 1.1 skrll else
2819 1.1 skrll num_relocs = input_section->reloc_count;
2820 1.1 skrll relend = relocs + num_relocs;
2821 1.1 skrll for (; rel < relend; rel++)
2822 1.13 christos {
2823 1.1 skrll int r_type, tls_type;
2824 1.1 skrll reloc_howto_type *howto;
2825 1.1 skrll unsigned long r_symndx;
2826 1.1 skrll struct elf_link_hash_entry *h;
2827 1.16 christos struct _bfd_sparc_elf_link_hash_entry *eh;
2828 1.16 christos Elf_Internal_Sym *sym;
2829 1.16 christos asection *sec;
2830 1.16 christos bfd_vma relocation, off;
2831 1.1 skrll bfd_reloc_status_type r;
2832 1.1 skrll bool is_plt = false;
2833 1.1 skrll bool unresolved_reloc;
2834 1.1 skrll bool resolved_to_zero;
2835 1.1 skrll bool relative_reloc;
2836 1.1 skrll
2837 1.1 skrll r_type = SPARC_ELF_R_TYPE (rel->r_info);
2838 1.1 skrll if (r_type == R_SPARC_GNU_VTINHERIT
2839 1.1 skrll || r_type == R_SPARC_GNU_VTENTRY)
2840 1.16 christos continue;
2841 1.1 skrll
2842 1.14 christos if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2843 1.1 skrll {
2844 1.1 skrll bfd_set_error (bfd_error_bad_value);
2845 1.1 skrll return false;
2846 1.1 skrll }
2847 1.1 skrll
2848 1.16 christos howto = _bfd_sparc_elf_howto_table + r_type;
2849 1.1 skrll r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2850 1.1 skrll h = NULL;
2851 1.1 skrll sym = NULL;
2852 1.1 skrll sec = NULL;
2853 1.1 skrll unresolved_reloc = false;
2854 1.3 christos if (r_symndx < symtab_hdr->sh_info)
2855 1.7 christos {
2856 1.3 christos sym = local_syms + r_symndx;
2857 1.3 christos sec = local_sections[r_symndx];
2858 1.3 christos relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2859 1.3 christos
2860 1.16 christos if (!bfd_link_relocatable (info)
2861 1.3 christos && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2862 1.3 christos {
2863 1.3 christos /* Relocate against local STT_GNU_IFUNC symbol. */
2864 1.7 christos h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2865 1.3 christos rel, false);
2866 1.3 christos if (h == NULL)
2867 1.3 christos abort ();
2868 1.1 skrll
2869 1.1 skrll /* Set STT_GNU_IFUNC symbol value. */
2870 1.1 skrll h->root.u.def.value = sym->st_value;
2871 1.16 christos h->root.u.def.section = sec;
2872 1.1 skrll }
2873 1.1 skrll }
2874 1.1 skrll else
2875 1.1 skrll {
2876 1.7 christos bool warned, ignored;
2877 1.1 skrll
2878 1.1 skrll RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2879 1.1 skrll r_symndx, symtab_hdr, sym_hashes,
2880 1.1 skrll h, sec, relocation,
2881 1.1 skrll unresolved_reloc, warned, ignored);
2882 1.1 skrll if (warned)
2883 1.1 skrll {
2884 1.1 skrll /* To avoid generating warning messages about truncated
2885 1.1 skrll relocations, set the relocation's address to be the same as
2886 1.1 skrll the start of this section. */
2887 1.1 skrll if (input_section->output_section != NULL)
2888 1.1 skrll relocation = input_section->output_section->vma;
2889 1.6 christos else
2890 1.3 christos relocation = 0;
2891 1.19 christos }
2892 1.19 christos }
2893 1.1 skrll
2894 1.7 christos if (sec != NULL && discarded_section (sec))
2895 1.1 skrll RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2896 1.1 skrll rel, 1, relend, R_SPARC_NONE,
2897 1.3 christos howto, 0, contents);
2898 1.3 christos
2899 1.3 christos if (bfd_link_relocatable (info))
2900 1.3 christos continue;
2901 1.3 christos
2902 1.3 christos if (h != NULL
2903 1.3 christos && h->type == STT_GNU_IFUNC
2904 1.3 christos && h->def_regular)
2905 1.3 christos {
2906 1.14 christos asection *plt_sec;
2907 1.14 christos const char *name;
2908 1.14 christos
2909 1.14 christos if ((input_section->flags & SEC_ALLOC) == 0
2910 1.14 christos || h->plt.offset == (bfd_vma) -1)
2911 1.16 christos {
2912 1.16 christos /* If this is a SHT_NOTE section without SHF_ALLOC, treat
2913 1.16 christos STT_GNU_IFUNC symbol as STT_FUNC. */
2914 1.16 christos if (elf_section_type (input_section) == SHT_NOTE)
2915 1.16 christos goto skip_ifunc;
2916 1.16 christos
2917 1.16 christos /* Dynamic relocs are not propagated for SEC_DEBUGGING
2918 1.16 christos sections because such sections are not SEC_ALLOC and
2919 1.16 christos thus ld.so will not process them. */
2920 1.16 christos if ((input_section->flags & SEC_ALLOC) == 0
2921 1.16 christos && (input_section->flags & SEC_DEBUGGING) != 0)
2922 1.16 christos continue;
2923 1.16 christos
2924 1.16 christos _bfd_error_handler
2925 1.16 christos /* xgettext:c-format */
2926 1.16 christos (_("%pB(%pA+%#" PRIx64 "): "
2927 1.16 christos "unresolvable %s relocation against symbol `%s'"),
2928 1.16 christos input_bfd,
2929 1.16 christos input_section,
2930 1.14 christos (uint64_t) rel->r_offset,
2931 1.3 christos howto->name,
2932 1.3 christos h->root.root.string);
2933 1.3 christos bfd_set_error (bfd_error_bad_value);
2934 1.3 christos return false;
2935 1.3 christos }
2936 1.3 christos
2937 1.3 christos plt_sec = htab->elf.splt;
2938 1.3 christos if (! plt_sec)
2939 1.3 christos plt_sec =htab->elf.iplt;
2940 1.3 christos
2941 1.3 christos switch (r_type)
2942 1.3 christos {
2943 1.3 christos case R_SPARC_GOTDATA_OP:
2944 1.3 christos continue;
2945 1.3 christos
2946 1.3 christos case R_SPARC_GOTDATA_OP_HIX22:
2947 1.3 christos case R_SPARC_GOTDATA_OP_LOX10:
2948 1.3 christos r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
2949 1.3 christos ? R_SPARC_GOT22
2950 1.3 christos : R_SPARC_GOT10);
2951 1.3 christos howto = _bfd_sparc_elf_howto_table + r_type;
2952 1.3 christos /* Fall through. */
2953 1.3 christos
2954 1.3 christos case R_SPARC_GOT10:
2955 1.3 christos case R_SPARC_GOT13:
2956 1.3 christos case R_SPARC_GOT22:
2957 1.3 christos if (htab->elf.sgot == NULL)
2958 1.3 christos abort ();
2959 1.3 christos off = h->got.offset;
2960 1.3 christos if (off == (bfd_vma) -1)
2961 1.3 christos abort();
2962 1.3 christos relocation = htab->elf.sgot->output_offset + off - got_base;
2963 1.3 christos goto do_relocation;
2964 1.3 christos
2965 1.3 christos case R_SPARC_WPLT30:
2966 1.3 christos case R_SPARC_WDISP30:
2967 1.3 christos relocation = (plt_sec->output_section->vma
2968 1.7 christos + plt_sec->output_offset + h->plt.offset);
2969 1.3 christos goto do_relocation;
2970 1.3 christos
2971 1.3 christos case R_SPARC_32:
2972 1.3 christos case R_SPARC_64:
2973 1.3 christos if (bfd_link_pic (info) && h->non_got_ref)
2974 1.3 christos {
2975 1.3 christos Elf_Internal_Rela outrel;
2976 1.3 christos bfd_vma offset;
2977 1.3 christos
2978 1.3 christos offset = _bfd_elf_section_offset (output_bfd, info,
2979 1.3 christos input_section,
2980 1.3 christos rel->r_offset);
2981 1.3 christos if (offset == (bfd_vma) -1
2982 1.3 christos || offset == (bfd_vma) -2)
2983 1.3 christos abort();
2984 1.3 christos
2985 1.3 christos outrel.r_offset = (input_section->output_section->vma
2986 1.7 christos + input_section->output_offset
2987 1.3 christos + offset);
2988 1.3 christos
2989 1.3 christos if (h->dynindx == -1
2990 1.3 christos || h->forced_local
2991 1.3 christos || bfd_link_executable (info))
2992 1.3 christos {
2993 1.3 christos outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
2994 1.3 christos 0, R_SPARC_IRELATIVE);
2995 1.3 christos outrel.r_addend = relocation + rel->r_addend;
2996 1.3 christos }
2997 1.3 christos else
2998 1.3 christos {
2999 1.3 christos if (h->dynindx == -1)
3000 1.3 christos abort();
3001 1.3 christos outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3002 1.3 christos outrel.r_addend = rel->r_addend;
3003 1.3 christos }
3004 1.3 christos
3005 1.3 christos sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3006 1.3 christos continue;
3007 1.3 christos }
3008 1.3 christos
3009 1.3 christos relocation = (plt_sec->output_section->vma
3010 1.3 christos + plt_sec->output_offset + h->plt.offset);
3011 1.7 christos goto do_relocation;
3012 1.3 christos
3013 1.3 christos case R_SPARC_HI22:
3014 1.3 christos case R_SPARC_LO10:
3015 1.3 christos /* We should only see such relocs in static links. */
3016 1.3 christos if (bfd_link_pic (info))
3017 1.3 christos abort();
3018 1.3 christos relocation = (plt_sec->output_section->vma
3019 1.3 christos + plt_sec->output_offset + h->plt.offset);
3020 1.3 christos goto do_relocation;
3021 1.3 christos
3022 1.3 christos default:
3023 1.13 christos if (h->root.root.string)
3024 1.13 christos name = h->root.root.string;
3025 1.14 christos else
3026 1.3 christos name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3027 1.3 christos NULL);
3028 1.17 christos _bfd_error_handler
3029 1.3 christos /* xgettext:c-format */
3030 1.16 christos (_("%pB: relocation %s against STT_GNU_IFUNC "
3031 1.3 christos "symbol `%s' isn't handled by %s"), input_bfd,
3032 1.3 christos _bfd_sparc_elf_howto_table[r_type].name,
3033 1.3 christos name, __func__);
3034 1.14 christos bfd_set_error (bfd_error_bad_value);
3035 1.13 christos return false;
3036 1.14 christos }
3037 1.13 christos }
3038 1.1 skrll
3039 1.1 skrll skip_ifunc:
3040 1.1 skrll eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3041 1.1 skrll resolved_to_zero = eh && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
3042 1.13 christos
3043 1.13 christos switch (r_type)
3044 1.13 christos {
3045 1.13 christos case R_SPARC_GOTDATA_OP_HIX22:
3046 1.13 christos case R_SPARC_GOTDATA_OP_LOX10:
3047 1.13 christos if (gdop_relative_offset_ok (info, h, relocation))
3048 1.13 christos {
3049 1.3 christos r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3050 1.3 christos ? R_SPARC_GOTDATA_HIX22
3051 1.3 christos : R_SPARC_GOTDATA_LOX10);
3052 1.13 christos howto = _bfd_sparc_elf_howto_table + r_type;
3053 1.3 christos }
3054 1.3 christos break;
3055 1.3 christos
3056 1.3 christos case R_SPARC_GOTDATA_OP:
3057 1.3 christos if (gdop_relative_offset_ok (info, h, relocation))
3058 1.3 christos {
3059 1.14 christos bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3060 1.14 christos
3061 1.14 christos /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3062 1.14 christos relocation = 0x80000000 | (insn & 0x3e07c01f);
3063 1.14 christos bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3064 1.14 christos
3065 1.14 christos /* If the symbol is global but not dynamic, an .rela.* slot has
3066 1.14 christos been allocated for it in the GOT so output R_SPARC_NONE here,
3067 1.14 christos if it isn't also subject to another, old-style GOT relocation.
3068 1.14 christos See also the handling of these GOT relocations just below. */
3069 1.14 christos if (h != NULL
3070 1.14 christos && h->dynindx == -1
3071 1.14 christos && !h->forced_local
3072 1.14 christos && h->root.type != bfd_link_hash_undefweak
3073 1.14 christos && !eh->has_old_style_got_reloc
3074 1.14 christos && (h->got.offset & 1) == 0
3075 1.14 christos && bfd_link_pic (info))
3076 1.14 christos {
3077 1.14 christos asection *s = htab->elf.srelgot;
3078 1.14 christos Elf_Internal_Rela outrel;
3079 1.14 christos
3080 1.14 christos BFD_ASSERT (s != NULL);
3081 1.3 christos
3082 1.3 christos memset (&outrel, 0, sizeof outrel);
3083 1.3 christos sparc_elf_append_rela (output_bfd, s, &outrel);
3084 1.3 christos h->got.offset |= 1;
3085 1.3 christos }
3086 1.3 christos }
3087 1.3 christos continue;
3088 1.3 christos }
3089 1.3 christos
3090 1.3 christos switch (r_type)
3091 1.1 skrll {
3092 1.13 christos case R_SPARC_GOTDATA_HIX22:
3093 1.13 christos case R_SPARC_GOTDATA_LOX10:
3094 1.1 skrll relocation = gdopoff (info, relocation);
3095 1.1 skrll break;
3096 1.1 skrll
3097 1.1 skrll case R_SPARC_GOTDATA_OP_HIX22:
3098 1.1 skrll case R_SPARC_GOTDATA_OP_LOX10:
3099 1.3 christos case R_SPARC_GOT10:
3100 1.1 skrll case R_SPARC_GOT13:
3101 1.1 skrll case R_SPARC_GOT22:
3102 1.16 christos /* Relocation is to the entry for this symbol in the global
3103 1.1 skrll offset table. */
3104 1.1 skrll if (htab->elf.sgot == NULL)
3105 1.16 christos abort ();
3106 1.1 skrll
3107 1.1 skrll relative_reloc = false;
3108 1.1 skrll if (h != NULL)
3109 1.1 skrll {
3110 1.1 skrll bool dyn;
3111 1.7 christos
3112 1.7 christos off = h->got.offset;
3113 1.7 christos BFD_ASSERT (off != (bfd_vma) -1);
3114 1.7 christos dyn = elf_hash_table (info)->dynamic_sections_created;
3115 1.3 christos
3116 1.1 skrll if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3117 1.1 skrll bfd_link_pic (info),
3118 1.1 skrll h)
3119 1.1 skrll || (bfd_link_pic (info)
3120 1.1 skrll && SYMBOL_REFERENCES_LOCAL (info, h)))
3121 1.1 skrll {
3122 1.1 skrll /* This is actually a static link, or it is a
3123 1.1 skrll -Bsymbolic link and the symbol is defined
3124 1.1 skrll locally, or the symbol was forced to be local
3125 1.1 skrll because of a version file. We must initialize
3126 1.1 skrll this entry in the global offset table. Since the
3127 1.1 skrll offset must always be a multiple of 8 for 64-bit
3128 1.1 skrll and 4 for 32-bit, we use the least significant bit
3129 1.1 skrll to record whether we have initialized it already.
3130 1.1 skrll
3131 1.1 skrll When doing a dynamic link, we create a .rela.got
3132 1.1 skrll relocation entry to initialize the value. This
3133 1.14 christos is done in the finish_dynamic_symbol routine. */
3134 1.14 christos if ((off & 1) != 0)
3135 1.13 christos off &= ~1;
3136 1.13 christos else
3137 1.13 christos {
3138 1.13 christos /* If this symbol isn't dynamic in PIC mode, treat it
3139 1.16 christos like a local symbol in PIC mode below. */
3140 1.13 christos if (h->dynindx == -1
3141 1.13 christos && !h->forced_local
3142 1.13 christos && h->root.type != bfd_link_hash_undefweak
3143 1.1 skrll && bfd_link_pic (info))
3144 1.1 skrll relative_reloc = true;
3145 1.1 skrll else
3146 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3147 1.16 christos htab->elf.sgot->contents + off);
3148 1.1 skrll h->got.offset |= 1;
3149 1.1 skrll }
3150 1.1 skrll }
3151 1.1 skrll else
3152 1.1 skrll unresolved_reloc = false;
3153 1.1 skrll }
3154 1.1 skrll else
3155 1.1 skrll {
3156 1.1 skrll BFD_ASSERT (local_got_offsets != NULL
3157 1.1 skrll && local_got_offsets[r_symndx] != (bfd_vma) -1);
3158 1.1 skrll
3159 1.1 skrll off = local_got_offsets[r_symndx];
3160 1.1 skrll
3161 1.1 skrll /* The offset must always be a multiple of 8 on 64-bit and
3162 1.1 skrll 4 on 32-bit. We use the least significant bit to record
3163 1.14 christos whether we have already processed this entry. */
3164 1.14 christos if ((off & 1) != 0)
3165 1.13 christos off &= ~1;
3166 1.16 christos else
3167 1.13 christos {
3168 1.13 christos /* For a local symbol in PIC mode, we need to generate a
3169 1.13 christos R_SPARC_RELATIVE reloc for the dynamic linker. */
3170 1.13 christos if (bfd_link_pic (info))
3171 1.13 christos relative_reloc = true;
3172 1.13 christos else
3173 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3174 1.13 christos htab->elf.sgot->contents + off);
3175 1.13 christos local_got_offsets[r_symndx] |= 1;
3176 1.14 christos }
3177 1.13 christos }
3178 1.1 skrll
3179 1.13 christos if (relative_reloc)
3180 1.1 skrll {
3181 1.13 christos asection *s = htab->elf.srelgot;
3182 1.13 christos Elf_Internal_Rela outrel;
3183 1.13 christos
3184 1.13 christos BFD_ASSERT (s != NULL);
3185 1.13 christos
3186 1.13 christos outrel.r_offset = (htab->elf.sgot->output_section->vma
3187 1.13 christos + htab->elf.sgot->output_offset
3188 1.13 christos + off);
3189 1.13 christos outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3190 1.13 christos 0, R_SPARC_RELATIVE);
3191 1.13 christos outrel.r_addend = relocation;
3192 1.13 christos sparc_elf_append_rela (output_bfd, s, &outrel);
3193 1.13 christos /* Versions of glibc ld.so at least up to 2.26 wrongly
3194 1.13 christos add the section contents to the value calculated for
3195 1.1 skrll a RELATIVE reloc. Zero the contents to work around
3196 1.13 christos this bug. */
3197 1.3 christos relocation = 0;
3198 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3199 1.1 skrll htab->elf.sgot->contents + off);
3200 1.1 skrll }
3201 1.1 skrll
3202 1.1 skrll relocation = htab->elf.sgot->output_offset + off - got_base;
3203 1.1 skrll break;
3204 1.1 skrll
3205 1.1 skrll case R_SPARC_PLT32:
3206 1.1 skrll case R_SPARC_PLT64:
3207 1.1 skrll if (h == NULL || h->plt.offset == (bfd_vma) -1)
3208 1.1 skrll {
3209 1.1 skrll r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3210 1.1 skrll goto r_sparc_plt32;
3211 1.1 skrll }
3212 1.1 skrll /* Fall through. */
3213 1.1 skrll
3214 1.1 skrll case R_SPARC_WPLT30:
3215 1.1 skrll case R_SPARC_HIPLT22:
3216 1.1 skrll case R_SPARC_LOPLT10:
3217 1.1 skrll case R_SPARC_PCPLT32:
3218 1.1 skrll case R_SPARC_PCPLT22:
3219 1.1 skrll case R_SPARC_PCPLT10:
3220 1.1 skrll r_sparc_wplt30:
3221 1.1 skrll /* Relocation is to the entry for this symbol in the
3222 1.1 skrll procedure linkage table. */
3223 1.1 skrll
3224 1.1 skrll if (! ABI_64_P (output_bfd))
3225 1.1 skrll {
3226 1.1 skrll /* The Solaris native assembler will generate a WPLT30 reloc
3227 1.1 skrll for a local symbol if you assemble a call from one
3228 1.7 christos section to another when using -K pic. We treat it as
3229 1.3 christos WDISP30. */
3230 1.3 christos if (h == NULL)
3231 1.1 skrll break;
3232 1.1 skrll }
3233 1.1 skrll /* PR 7027: We need similar behaviour for 64-bit binaries. */
3234 1.1 skrll else if (r_type == R_SPARC_WPLT30 && h == NULL)
3235 1.1 skrll break;
3236 1.3 christos else
3237 1.1 skrll {
3238 1.1 skrll BFD_ASSERT (h != NULL);
3239 1.1 skrll }
3240 1.1 skrll
3241 1.1 skrll if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3242 1.1 skrll {
3243 1.1 skrll /* We didn't make a PLT entry for this symbol. This
3244 1.3 christos happens when statically linking PIC code, or when
3245 1.3 christos using -Bsymbolic. */
3246 1.1 skrll break;
3247 1.16 christos }
3248 1.1 skrll
3249 1.1 skrll relocation = (htab->elf.splt->output_section->vma
3250 1.1 skrll + htab->elf.splt->output_offset
3251 1.16 christos + h->plt.offset);
3252 1.1 skrll unresolved_reloc = false;
3253 1.1 skrll if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3254 1.1 skrll {
3255 1.1 skrll r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3256 1.1 skrll is_plt = true;
3257 1.1 skrll goto r_sparc_plt32;
3258 1.1 skrll }
3259 1.1 skrll break;
3260 1.1 skrll
3261 1.18 christos case R_SPARC_PC10:
3262 1.1 skrll case R_SPARC_PC22:
3263 1.1 skrll case R_SPARC_PC_HH22:
3264 1.1 skrll case R_SPARC_PC_HM10:
3265 1.1 skrll case R_SPARC_PC_LM22:
3266 1.1 skrll if (h != NULL && h == htab->elf.hgot)
3267 1.1 skrll break;
3268 1.1 skrll /* Fall through. */
3269 1.1 skrll case R_SPARC_DISP8:
3270 1.1 skrll case R_SPARC_DISP16:
3271 1.1 skrll case R_SPARC_DISP32:
3272 1.6 christos case R_SPARC_DISP64:
3273 1.1 skrll case R_SPARC_WDISP30:
3274 1.1 skrll case R_SPARC_WDISP22:
3275 1.1 skrll case R_SPARC_WDISP19:
3276 1.1 skrll case R_SPARC_WDISP16:
3277 1.1 skrll case R_SPARC_WDISP10:
3278 1.1 skrll case R_SPARC_8:
3279 1.1 skrll case R_SPARC_16:
3280 1.1 skrll case R_SPARC_32:
3281 1.1 skrll case R_SPARC_HI22:
3282 1.1 skrll case R_SPARC_22:
3283 1.1 skrll case R_SPARC_13:
3284 1.1 skrll case R_SPARC_LO10:
3285 1.1 skrll case R_SPARC_UA16:
3286 1.1 skrll case R_SPARC_UA32:
3287 1.1 skrll case R_SPARC_10:
3288 1.1 skrll case R_SPARC_11:
3289 1.1 skrll case R_SPARC_64:
3290 1.1 skrll case R_SPARC_OLO10:
3291 1.1 skrll case R_SPARC_HH22:
3292 1.1 skrll case R_SPARC_HM10:
3293 1.1 skrll case R_SPARC_LM22:
3294 1.1 skrll case R_SPARC_7:
3295 1.1 skrll case R_SPARC_5:
3296 1.1 skrll case R_SPARC_6:
3297 1.6 christos case R_SPARC_HIX22:
3298 1.1 skrll case R_SPARC_LOX10:
3299 1.1 skrll case R_SPARC_H44:
3300 1.14 christos case R_SPARC_M44:
3301 1.1 skrll case R_SPARC_L44:
3302 1.1 skrll case R_SPARC_H34:
3303 1.13 christos case R_SPARC_UA64:
3304 1.13 christos r_sparc_plt32:
3305 1.13 christos if ((input_section->flags & SEC_ALLOC) == 0 || is_vxworks_tls)
3306 1.7 christos break;
3307 1.1 skrll
3308 1.14 christos /* Copy dynamic function pointer relocations. Don't generate
3309 1.14 christos dynamic relocations against resolved undefined weak symbols
3310 1.14 christos in PIE. */
3311 1.1 skrll if ((bfd_link_pic (info)
3312 1.3 christos && (h == NULL
3313 1.7 christos || !(h->root.type == bfd_link_hash_undefweak
3314 1.1 skrll && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
3315 1.1 skrll || resolved_to_zero)))
3316 1.1 skrll && (! howto->pc_relative
3317 1.1 skrll || !SYMBOL_CALLS_LOCAL (info, h)))
3318 1.1 skrll || (!bfd_link_pic (info)
3319 1.13 christos && h != NULL
3320 1.13 christos && h->dynindx != -1
3321 1.1 skrll && !h->non_got_ref
3322 1.1 skrll && ((h->def_dynamic
3323 1.1 skrll && !h->def_regular)
3324 1.16 christos || (h->root.type == bfd_link_hash_undefweak
3325 1.1 skrll && !resolved_to_zero)
3326 1.1 skrll || h->root.type == bfd_link_hash_undefined)))
3327 1.1 skrll {
3328 1.1 skrll Elf_Internal_Rela outrel;
3329 1.1 skrll bool skip, relocate = false;
3330 1.1 skrll
3331 1.1 skrll /* When generating a shared object, these relocations
3332 1.16 christos are copied into the output file to be resolved at run
3333 1.1 skrll time. */
3334 1.1 skrll
3335 1.1 skrll BFD_ASSERT (sreloc != NULL);
3336 1.1 skrll
3337 1.1 skrll skip = false;
3338 1.16 christos
3339 1.1 skrll outrel.r_offset =
3340 1.16 christos _bfd_elf_section_offset (output_bfd, info, input_section,
3341 1.1 skrll rel->r_offset);
3342 1.1 skrll if (outrel.r_offset == (bfd_vma) -1)
3343 1.1 skrll skip = true;
3344 1.1 skrll else if (outrel.r_offset == (bfd_vma) -2)
3345 1.1 skrll skip = true, relocate = true;
3346 1.1 skrll outrel.r_offset += (input_section->output_section->vma
3347 1.1 skrll + input_section->output_offset);
3348 1.1 skrll
3349 1.1 skrll /* Optimize unaligned reloc usage now that we know where
3350 1.1 skrll it finally resides. */
3351 1.1 skrll switch (r_type)
3352 1.1 skrll {
3353 1.1 skrll case R_SPARC_16:
3354 1.1 skrll if (outrel.r_offset & 1)
3355 1.1 skrll r_type = R_SPARC_UA16;
3356 1.1 skrll break;
3357 1.1 skrll case R_SPARC_UA16:
3358 1.1 skrll if (!(outrel.r_offset & 1))
3359 1.1 skrll r_type = R_SPARC_16;
3360 1.1 skrll break;
3361 1.1 skrll case R_SPARC_32:
3362 1.1 skrll if (outrel.r_offset & 3)
3363 1.1 skrll r_type = R_SPARC_UA32;
3364 1.1 skrll break;
3365 1.1 skrll case R_SPARC_UA32:
3366 1.1 skrll if (!(outrel.r_offset & 3))
3367 1.1 skrll r_type = R_SPARC_32;
3368 1.1 skrll break;
3369 1.1 skrll case R_SPARC_64:
3370 1.1 skrll if (outrel.r_offset & 7)
3371 1.1 skrll r_type = R_SPARC_UA64;
3372 1.13 christos break;
3373 1.1 skrll case R_SPARC_UA64:
3374 1.13 christos if (!(outrel.r_offset & 7))
3375 1.13 christos r_type = R_SPARC_64;
3376 1.1 skrll break;
3377 1.1 skrll case R_SPARC_DISP8:
3378 1.1 skrll case R_SPARC_DISP16:
3379 1.1 skrll case R_SPARC_DISP32:
3380 1.1 skrll case R_SPARC_DISP64:
3381 1.1 skrll /* If the symbol is not dynamic, we should not keep
3382 1.16 christos a dynamic relocation. But an .rela.* slot has been
3383 1.1 skrll allocated for it, output R_SPARC_NONE.
3384 1.1 skrll FIXME: Add code tracking needed dynamic relocs as
3385 1.1 skrll e.g. i386 has. */
3386 1.1 skrll if (h->dynindx == -1)
3387 1.1 skrll skip = true, relocate = true;
3388 1.1 skrll break;
3389 1.1 skrll }
3390 1.7 christos
3391 1.7 christos if (skip)
3392 1.7 christos memset (&outrel, 0, sizeof outrel);
3393 1.7 christos /* h->dynindx may be -1 if the symbol was marked to
3394 1.5 christos become local. */
3395 1.5 christos else if (h != NULL
3396 1.1 skrll && h->dynindx != -1
3397 1.1 skrll && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3398 1.1 skrll || !bfd_link_pic (info)
3399 1.1 skrll || !SYMBOLIC_BIND (info, h)
3400 1.1 skrll || !h->def_regular))
3401 1.1 skrll {
3402 1.11 christos outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3403 1.11 christos outrel.r_addend = rel->r_addend;
3404 1.1 skrll }
3405 1.1 skrll else
3406 1.1 skrll {
3407 1.1 skrll if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3408 1.1 skrll || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3409 1.1 skrll {
3410 1.1 skrll outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3411 1.1 skrll 0, R_SPARC_RELATIVE);
3412 1.1 skrll outrel.r_addend = relocation + rel->r_addend;
3413 1.1 skrll }
3414 1.1 skrll else
3415 1.1 skrll {
3416 1.3 christos long indx;
3417 1.1 skrll
3418 1.1 skrll outrel.r_addend = relocation + rel->r_addend;
3419 1.1 skrll
3420 1.1 skrll if (is_plt)
3421 1.1 skrll sec = htab->elf.splt;
3422 1.1 skrll
3423 1.16 christos if (bfd_is_abs_section (sec))
3424 1.1 skrll indx = 0;
3425 1.1 skrll else if (sec == NULL || sec->owner == NULL)
3426 1.1 skrll {
3427 1.1 skrll bfd_set_error (bfd_error_bad_value);
3428 1.1 skrll return false;
3429 1.1 skrll }
3430 1.1 skrll else
3431 1.1 skrll {
3432 1.1 skrll asection *osec;
3433 1.1 skrll
3434 1.1 skrll /* We are turning this relocation into one
3435 1.1 skrll against a section symbol. It would be
3436 1.1 skrll proper to subtract the symbol's value,
3437 1.1 skrll osec->vma, from the emitted reloc addend,
3438 1.1 skrll but ld.so expects buggy relocs. */
3439 1.1 skrll osec = sec->output_section;
3440 1.1 skrll indx = elf_section_data (osec)->dynindx;
3441 1.1 skrll
3442 1.1 skrll if (indx == 0)
3443 1.1 skrll {
3444 1.1 skrll osec = htab->elf.text_index_section;
3445 1.1 skrll indx = elf_section_data (osec)->dynindx;
3446 1.1 skrll }
3447 1.1 skrll
3448 1.13 christos /* FIXME: we really should be able to link non-pic
3449 1.14 christos shared libraries. */
3450 1.1 skrll if (indx == 0)
3451 1.1 skrll {
3452 1.16 christos BFD_FAIL ();
3453 1.1 skrll _bfd_error_handler
3454 1.1 skrll (_("%pB: probably compiled without -fPIC?"),
3455 1.1 skrll input_bfd);
3456 1.1 skrll bfd_set_error (bfd_error_bad_value);
3457 1.1 skrll return false;
3458 1.1 skrll }
3459 1.1 skrll }
3460 1.1 skrll
3461 1.1 skrll outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3462 1.1 skrll r_type);
3463 1.1 skrll }
3464 1.1 skrll }
3465 1.1 skrll
3466 1.1 skrll sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3467 1.1 skrll
3468 1.1 skrll /* This reloc will be computed at runtime, so there's no
3469 1.1 skrll need to do anything now. */
3470 1.1 skrll if (! relocate)
3471 1.1 skrll continue;
3472 1.1 skrll }
3473 1.1 skrll break;
3474 1.14 christos
3475 1.14 christos case R_SPARC_TLS_GD_HI22:
3476 1.14 christos case R_SPARC_TLS_GD_LO10:
3477 1.14 christos case R_SPARC_TLS_IE_HI22:
3478 1.14 christos case R_SPARC_TLS_IE_LO10:
3479 1.14 christos r_type = sparc_elf_tls_transition (info, input_bfd, r_type,
3480 1.14 christos h == NULL || h->dynindx == -1);
3481 1.1 skrll if (r_type == R_SPARC_REV32)
3482 1.1 skrll break;
3483 1.1 skrll if (h != NULL)
3484 1.1 skrll tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3485 1.12 joerg else if (local_got_offsets)
3486 1.7 christos tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3487 1.7 christos else if (h != NULL)
3488 1.1 skrll {
3489 1.1 skrll tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3490 1.1 skrll if (!bfd_link_dll (info)
3491 1.1 skrll && h->dynindx == -1
3492 1.1 skrll && tls_type == GOT_TLS_IE)
3493 1.1 skrll switch (SPARC_ELF_R_TYPE (rel->r_info))
3494 1.1 skrll {
3495 1.1 skrll case R_SPARC_TLS_GD_HI22:
3496 1.1 skrll case R_SPARC_TLS_IE_HI22:
3497 1.1 skrll r_type = R_SPARC_TLS_LE_HIX22;
3498 1.1 skrll break;
3499 1.14 christos default:
3500 1.14 christos r_type = R_SPARC_TLS_LE_LOX10;
3501 1.1 skrll break;
3502 1.1 skrll }
3503 1.1 skrll }
3504 1.1 skrll else
3505 1.1 skrll tls_type = GOT_UNKNOWN;
3506 1.1 skrll if (tls_type == GOT_TLS_IE)
3507 1.1 skrll switch (r_type)
3508 1.1 skrll {
3509 1.1 skrll case R_SPARC_TLS_GD_HI22:
3510 1.1 skrll r_type = R_SPARC_TLS_IE_HI22;
3511 1.1 skrll break;
3512 1.1 skrll case R_SPARC_TLS_GD_LO10:
3513 1.1 skrll r_type = R_SPARC_TLS_IE_LO10;
3514 1.1 skrll break;
3515 1.1 skrll }
3516 1.1 skrll
3517 1.1 skrll if (r_type == R_SPARC_TLS_LE_HIX22)
3518 1.1 skrll {
3519 1.1 skrll relocation = tpoff (info, relocation);
3520 1.1 skrll break;
3521 1.1 skrll }
3522 1.1 skrll if (r_type == R_SPARC_TLS_LE_LOX10)
3523 1.1 skrll {
3524 1.1 skrll /* Change add into xor. */
3525 1.1 skrll relocation = tpoff (info, relocation);
3526 1.1 skrll bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3527 1.1 skrll contents + rel->r_offset)
3528 1.1 skrll | 0x80182000), contents + rel->r_offset);
3529 1.1 skrll break;
3530 1.1 skrll }
3531 1.1 skrll
3532 1.1 skrll if (h != NULL)
3533 1.1 skrll {
3534 1.1 skrll off = h->got.offset;
3535 1.1 skrll h->got.offset |= 1;
3536 1.1 skrll }
3537 1.1 skrll else
3538 1.1 skrll {
3539 1.1 skrll BFD_ASSERT (local_got_offsets != NULL);
3540 1.3 christos off = local_got_offsets[r_symndx];
3541 1.1 skrll local_got_offsets[r_symndx] |= 1;
3542 1.1 skrll }
3543 1.1 skrll
3544 1.1 skrll r_sparc_tlsldm:
3545 1.1 skrll if (htab->elf.sgot == NULL)
3546 1.1 skrll abort ();
3547 1.1 skrll
3548 1.1 skrll if ((off & 1) != 0)
3549 1.1 skrll off &= ~1;
3550 1.3 christos else
3551 1.1 skrll {
3552 1.1 skrll Elf_Internal_Rela outrel;
3553 1.3 christos int dr_type, indx;
3554 1.3 christos
3555 1.3 christos if (htab->elf.srelgot == NULL)
3556 1.3 christos abort ();
3557 1.1 skrll
3558 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3559 1.1 skrll htab->elf.sgot->contents + off);
3560 1.1 skrll outrel.r_offset = (htab->elf.sgot->output_section->vma
3561 1.1 skrll + htab->elf.sgot->output_offset + off);
3562 1.1 skrll indx = h && h->dynindx != -1 ? h->dynindx : 0;
3563 1.1 skrll if (r_type == R_SPARC_TLS_IE_HI22
3564 1.1 skrll || r_type == R_SPARC_TLS_IE_LO10)
3565 1.1 skrll dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3566 1.1 skrll else
3567 1.1 skrll dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3568 1.3 christos if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3569 1.1 skrll outrel.r_addend = relocation - dtpoff_base (info);
3570 1.1 skrll else
3571 1.1 skrll outrel.r_addend = 0;
3572 1.1 skrll outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3573 1.1 skrll sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3574 1.1 skrll
3575 1.13 christos if (r_type == R_SPARC_TLS_GD_HI22
3576 1.1 skrll || r_type == R_SPARC_TLS_GD_LO10)
3577 1.1 skrll {
3578 1.3 christos if (indx == 0)
3579 1.1 skrll {
3580 1.1 skrll BFD_ASSERT (! unresolved_reloc);
3581 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd,
3582 1.1 skrll relocation - dtpoff_base (info),
3583 1.1 skrll (htab->elf.sgot->contents + off
3584 1.3 christos + SPARC_ELF_WORD_BYTES (htab)));
3585 1.1 skrll }
3586 1.1 skrll else
3587 1.1 skrll {
3588 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3589 1.3 christos (htab->elf.sgot->contents + off
3590 1.1 skrll + SPARC_ELF_WORD_BYTES (htab)));
3591 1.1 skrll outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3592 1.1 skrll SPARC_ELF_DTPOFF_RELOC (htab));
3593 1.1 skrll outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3594 1.1 skrll sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3595 1.1 skrll &outrel);
3596 1.3 christos }
3597 1.1 skrll }
3598 1.1 skrll else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3599 1.1 skrll {
3600 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3601 1.1 skrll (htab->elf.sgot->contents + off
3602 1.1 skrll + SPARC_ELF_WORD_BYTES (htab)));
3603 1.1 skrll }
3604 1.3 christos }
3605 1.16 christos
3606 1.1 skrll if (off >= (bfd_vma) -2)
3607 1.1 skrll abort ();
3608 1.1 skrll
3609 1.1 skrll relocation = htab->elf.sgot->output_offset + off - got_base;
3610 1.1 skrll unresolved_reloc = false;
3611 1.14 christos howto = _bfd_sparc_elf_howto_table + r_type;
3612 1.14 christos break;
3613 1.1 skrll
3614 1.1 skrll case R_SPARC_TLS_LDM_HI22:
3615 1.1 skrll case R_SPARC_TLS_LDM_LO10:
3616 1.1 skrll /* LD -> LE */
3617 1.1 skrll if (bfd_link_executable (info))
3618 1.1 skrll {
3619 1.1 skrll bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3620 1.1 skrll continue;
3621 1.1 skrll }
3622 1.1 skrll off = htab->tls_ldm_got.offset;
3623 1.14 christos htab->tls_ldm_got.offset |= 1;
3624 1.14 christos goto r_sparc_tlsldm;
3625 1.14 christos
3626 1.14 christos case R_SPARC_TLS_LDO_HIX22:
3627 1.14 christos case R_SPARC_TLS_LDO_LOX10:
3628 1.14 christos /* LD -> LE */
3629 1.14 christos if (bfd_link_executable (info))
3630 1.14 christos {
3631 1.14 christos if (r_type == R_SPARC_TLS_LDO_HIX22)
3632 1.1 skrll r_type = R_SPARC_TLS_LE_HIX22;
3633 1.1 skrll else
3634 1.1 skrll r_type = R_SPARC_TLS_LE_LOX10;
3635 1.1 skrll }
3636 1.1 skrll else
3637 1.1 skrll {
3638 1.1 skrll relocation -= dtpoff_base (info);
3639 1.1 skrll break;
3640 1.14 christos }
3641 1.1 skrll /* Fall through. */
3642 1.1 skrll
3643 1.14 christos case R_SPARC_TLS_LE_HIX22:
3644 1.14 christos case R_SPARC_TLS_LE_LOX10:
3645 1.14 christos if (!bfd_link_executable (info))
3646 1.14 christos {
3647 1.1 skrll Elf_Internal_Rela outrel;
3648 1.1 skrll bfd_vma offset
3649 1.1 skrll = _bfd_elf_section_offset (output_bfd, info, input_section,
3650 1.14 christos rel->r_offset);
3651 1.14 christos if (offset == (bfd_vma) -1 || offset == (bfd_vma) -2)
3652 1.14 christos memset (&outrel, 0, sizeof outrel);
3653 1.1 skrll else
3654 1.14 christos {
3655 1.14 christos outrel.r_offset = offset
3656 1.1 skrll + input_section->output_section->vma
3657 1.1 skrll + input_section->output_offset;
3658 1.14 christos outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3659 1.1 skrll outrel.r_addend
3660 1.1 skrll = relocation - dtpoff_base (info) + rel->r_addend;
3661 1.1 skrll }
3662 1.1 skrll
3663 1.1 skrll BFD_ASSERT (sreloc != NULL);
3664 1.1 skrll sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3665 1.1 skrll continue;
3666 1.14 christos }
3667 1.14 christos relocation = tpoff (info, relocation);
3668 1.1 skrll break;
3669 1.1 skrll
3670 1.1 skrll case R_SPARC_TLS_LDM_CALL:
3671 1.1 skrll /* LD -> LE */
3672 1.1 skrll if (bfd_link_executable (info))
3673 1.1 skrll {
3674 1.1 skrll /* mov %g0, %o0 */
3675 1.1 skrll bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3676 1.14 christos continue;
3677 1.14 christos }
3678 1.14 christos /* Fall through */
3679 1.1 skrll
3680 1.1 skrll case R_SPARC_TLS_GD_CALL:
3681 1.1 skrll if (h != NULL)
3682 1.14 christos tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3683 1.14 christos else if (local_got_offsets)
3684 1.14 christos tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3685 1.14 christos else if (h != NULL)
3686 1.1 skrll tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3687 1.1 skrll else
3688 1.6 christos tls_type = GOT_UNKNOWN;
3689 1.1 skrll /* GD -> IE or LE */
3690 1.1 skrll if (bfd_link_executable (info)
3691 1.14 christos || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3692 1.14 christos {
3693 1.1 skrll Elf_Internal_Rela *rel2;
3694 1.1 skrll bfd_vma insn;
3695 1.1 skrll
3696 1.1 skrll /* GD -> LE */
3697 1.1 skrll if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3698 1.1 skrll {
3699 1.1 skrll bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3700 1.1 skrll continue;
3701 1.1 skrll }
3702 1.1 skrll
3703 1.1 skrll /* GD -> IE */
3704 1.1 skrll if (rel + 1 < relend
3705 1.1 skrll && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3706 1.1 skrll && rel[1].r_offset == rel->r_offset + 4
3707 1.1 skrll && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3708 1.1 skrll && (((insn = bfd_get_32 (input_bfd,
3709 1.1 skrll contents + rel[1].r_offset))
3710 1.1 skrll >> 25) & 0x1f) == 8)
3711 1.1 skrll {
3712 1.1 skrll /* We have
3713 1.1 skrll call __tls_get_addr, %tgd_call(foo)
3714 1.1 skrll add %reg1, %reg2, %o0, %tgd_add(foo)
3715 1.1 skrll and change it into IE:
3716 1.1 skrll {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3717 1.1 skrll add %g7, %o0, %o0, %tie_add(foo).
3718 1.1 skrll add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3719 1.1 skrll ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3720 1.1 skrll ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3721 1.1 skrll bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3722 1.1 skrll contents + rel->r_offset);
3723 1.1 skrll bfd_put_32 (output_bfd, 0x9001c008,
3724 1.6 christos contents + rel->r_offset + 4);
3725 1.6 christos rel++;
3726 1.6 christos continue;
3727 1.6 christos }
3728 1.6 christos
3729 1.6 christos /* We cannot just overwrite the delay slot instruction,
3730 1.6 christos as it might be what puts the %o0 argument to
3731 1.6 christos __tls_get_addr into place. So we have to transpose
3732 1.6 christos the delay slot with the add we patch in. */
3733 1.6 christos insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3734 1.6 christos bfd_put_32 (output_bfd, insn,
3735 1.6 christos contents + rel->r_offset);
3736 1.6 christos bfd_put_32 (output_bfd, 0x9001c008,
3737 1.6 christos contents + rel->r_offset + 4);
3738 1.6 christos
3739 1.6 christos rel2 = rel;
3740 1.6 christos while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3741 1.6 christos rel->r_offset + 4))
3742 1.6 christos != NULL)
3743 1.6 christos {
3744 1.1 skrll /* If the instruction we moved has a relocation attached to
3745 1.1 skrll it, adjust the offset so that it will apply to the correct
3746 1.1 skrll instruction. */
3747 1.1 skrll rel2->r_offset -= 4;
3748 1.16 christos }
3749 1.16 christos continue;
3750 1.1 skrll }
3751 1.1 skrll
3752 1.1 skrll h = (struct elf_link_hash_entry *)
3753 1.1 skrll bfd_link_hash_lookup (info->hash, "__tls_get_addr", false,
3754 1.1 skrll false, true);
3755 1.1 skrll BFD_ASSERT (h != NULL);
3756 1.14 christos r_type = R_SPARC_WPLT30;
3757 1.14 christos howto = _bfd_sparc_elf_howto_table + r_type;
3758 1.14 christos goto r_sparc_wplt30;
3759 1.1 skrll
3760 1.14 christos case R_SPARC_TLS_GD_ADD:
3761 1.14 christos if (h != NULL)
3762 1.14 christos tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3763 1.14 christos else if (local_got_offsets)
3764 1.1 skrll tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3765 1.1 skrll else
3766 1.1 skrll tls_type = GOT_UNKNOWN;
3767 1.1 skrll /* GD -> IE or LE */
3768 1.1 skrll if (bfd_link_executable (info) || tls_type == GOT_TLS_IE)
3769 1.1 skrll {
3770 1.1 skrll /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3771 1.14 christos changed into IE:
3772 1.14 christos {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3773 1.14 christos or LE:
3774 1.1 skrll add %g7, %reg2, %reg3. */
3775 1.1 skrll bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3776 1.1 skrll if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3777 1.1 skrll relocation = (insn & ~0x7c000) | 0x1c000;
3778 1.1 skrll else
3779 1.1 skrll relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3780 1.14 christos bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3781 1.14 christos }
3782 1.1 skrll continue;
3783 1.1 skrll
3784 1.1 skrll case R_SPARC_TLS_LDM_ADD:
3785 1.1 skrll /* LD -> LE */
3786 1.14 christos if (bfd_link_executable (info))
3787 1.14 christos bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3788 1.1 skrll continue;
3789 1.1 skrll
3790 1.1 skrll case R_SPARC_TLS_LDO_ADD:
3791 1.1 skrll /* LD -> LE */
3792 1.1 skrll if (bfd_link_executable (info))
3793 1.1 skrll {
3794 1.1 skrll /* Change rs1 into %g7. */
3795 1.1 skrll bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3796 1.1 skrll insn = (insn & ~0x7c000) | 0x1c000;
3797 1.1 skrll bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3798 1.14 christos }
3799 1.14 christos continue;
3800 1.1 skrll
3801 1.1 skrll case R_SPARC_TLS_IE_LD:
3802 1.1 skrll case R_SPARC_TLS_IE_LDX:
3803 1.1 skrll /* IE -> LE */
3804 1.1 skrll if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3805 1.1 skrll {
3806 1.1 skrll bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3807 1.1 skrll int rs2 = insn & 0x1f;
3808 1.1 skrll int rd = (insn >> 25) & 0x1f;
3809 1.1 skrll
3810 1.1 skrll if (rs2 == rd)
3811 1.1 skrll relocation = SPARC_NOP;
3812 1.1 skrll else
3813 1.1 skrll relocation = 0x80100000 | (insn & 0x3e00001f);
3814 1.1 skrll bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3815 1.1 skrll }
3816 1.1 skrll continue;
3817 1.1 skrll
3818 1.1 skrll case R_SPARC_TLS_IE_ADD:
3819 1.1 skrll /* Totally useless relocation. */
3820 1.1 skrll continue;
3821 1.1 skrll
3822 1.1 skrll case R_SPARC_TLS_DTPOFF32:
3823 1.1 skrll case R_SPARC_TLS_DTPOFF64:
3824 1.1 skrll relocation -= dtpoff_base (info);
3825 1.1 skrll break;
3826 1.1 skrll
3827 1.1 skrll default:
3828 1.1 skrll break;
3829 1.1 skrll }
3830 1.1 skrll
3831 1.6 christos /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3832 1.6 christos because such sections are not SEC_ALLOC and thus ld.so will
3833 1.6 christos not process them. */
3834 1.13 christos if (unresolved_reloc
3835 1.13 christos && !((input_section->flags & SEC_DEBUGGING) != 0
3836 1.14 christos && h->def_dynamic)
3837 1.14 christos && _bfd_elf_section_offset (output_bfd, info, input_section,
3838 1.1 skrll rel->r_offset) != (bfd_vma) -1)
3839 1.1 skrll _bfd_error_handler
3840 1.14 christos /* xgettext:c-format */
3841 1.1 skrll (_("%pB(%pA+%#" PRIx64 "): "
3842 1.1 skrll "unresolvable %s relocation against symbol `%s'"),
3843 1.1 skrll input_bfd,
3844 1.1 skrll input_section,
3845 1.1 skrll (uint64_t) rel->r_offset,
3846 1.1 skrll howto->name,
3847 1.1 skrll h->root.root.string);
3848 1.1 skrll
3849 1.1 skrll r = bfd_reloc_continue;
3850 1.1 skrll if (r_type == R_SPARC_OLO10)
3851 1.1 skrll {
3852 1.1 skrll bfd_vma x;
3853 1.1 skrll
3854 1.1 skrll if (! ABI_64_P (output_bfd))
3855 1.1 skrll abort ();
3856 1.1 skrll
3857 1.1 skrll relocation += rel->r_addend;
3858 1.1 skrll relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3859 1.1 skrll
3860 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3861 1.1 skrll x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3862 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3863 1.1 skrll
3864 1.1 skrll r = bfd_check_overflow (howto->complain_on_overflow,
3865 1.1 skrll howto->bitsize, howto->rightshift,
3866 1.1 skrll bfd_arch_bits_per_address (input_bfd),
3867 1.1 skrll relocation);
3868 1.1 skrll }
3869 1.1 skrll else if (r_type == R_SPARC_WDISP16)
3870 1.1 skrll {
3871 1.1 skrll bfd_vma x;
3872 1.1 skrll
3873 1.1 skrll relocation += rel->r_addend;
3874 1.1 skrll relocation -= (input_section->output_section->vma
3875 1.1 skrll + input_section->output_offset);
3876 1.1 skrll relocation -= rel->r_offset;
3877 1.1 skrll
3878 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3879 1.1 skrll x |= ((((relocation >> 2) & 0xc000) << 6)
3880 1.1 skrll | ((relocation >> 2) & 0x3fff));
3881 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3882 1.1 skrll
3883 1.6 christos r = bfd_check_overflow (howto->complain_on_overflow,
3884 1.6 christos howto->bitsize, howto->rightshift,
3885 1.6 christos bfd_arch_bits_per_address (input_bfd),
3886 1.6 christos relocation);
3887 1.6 christos }
3888 1.6 christos else if (r_type == R_SPARC_WDISP10)
3889 1.6 christos {
3890 1.6 christos bfd_vma x;
3891 1.6 christos
3892 1.6 christos relocation += rel->r_addend;
3893 1.6 christos relocation -= (input_section->output_section->vma
3894 1.6 christos + input_section->output_offset);
3895 1.6 christos relocation -= rel->r_offset;
3896 1.6 christos
3897 1.6 christos x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3898 1.6 christos x |= ((((relocation >> 2) & 0x300) << 11)
3899 1.6 christos | (((relocation >> 2) & 0xff) << 5));
3900 1.6 christos bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3901 1.6 christos
3902 1.1 skrll r = bfd_check_overflow (howto->complain_on_overflow,
3903 1.1 skrll howto->bitsize, howto->rightshift,
3904 1.1 skrll bfd_arch_bits_per_address (input_bfd),
3905 1.1 skrll relocation);
3906 1.1 skrll }
3907 1.1 skrll else if (r_type == R_SPARC_REV32)
3908 1.1 skrll {
3909 1.1 skrll bfd_vma x;
3910 1.1 skrll
3911 1.1 skrll relocation = relocation + rel->r_addend;
3912 1.1 skrll
3913 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3914 1.1 skrll x = x + relocation;
3915 1.1 skrll bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3916 1.1 skrll r = bfd_reloc_ok;
3917 1.1 skrll }
3918 1.1 skrll else if (r_type == R_SPARC_TLS_LDO_HIX22
3919 1.1 skrll || r_type == R_SPARC_TLS_LE_HIX22)
3920 1.1 skrll {
3921 1.1 skrll bfd_vma x;
3922 1.1 skrll
3923 1.1 skrll relocation += rel->r_addend;
3924 1.1 skrll if (r_type == R_SPARC_TLS_LE_HIX22)
3925 1.1 skrll relocation ^= MINUS_ONE;
3926 1.1 skrll
3927 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3928 1.1 skrll x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3929 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3930 1.1 skrll r = bfd_reloc_ok;
3931 1.1 skrll }
3932 1.1 skrll else if (r_type == R_SPARC_TLS_LDO_LOX10
3933 1.1 skrll || r_type == R_SPARC_TLS_LE_LOX10)
3934 1.1 skrll {
3935 1.1 skrll bfd_vma x;
3936 1.1 skrll
3937 1.1 skrll relocation += rel->r_addend;
3938 1.1 skrll relocation &= 0x3ff;
3939 1.1 skrll if (r_type == R_SPARC_TLS_LE_LOX10)
3940 1.1 skrll relocation |= 0x1c00;
3941 1.1 skrll
3942 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3943 1.3 christos x = (x & ~(bfd_vma) 0x1fff) | relocation;
3944 1.13 christos bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3945 1.13 christos
3946 1.1 skrll r = bfd_reloc_ok;
3947 1.1 skrll }
3948 1.1 skrll else if (r_type == R_SPARC_HIX22
3949 1.1 skrll || r_type == R_SPARC_GOTDATA_HIX22
3950 1.3 christos || r_type == R_SPARC_GOTDATA_OP_HIX22)
3951 1.3 christos {
3952 1.3 christos bfd_vma x;
3953 1.1 skrll
3954 1.1 skrll relocation += rel->r_addend;
3955 1.1 skrll if (r_type == R_SPARC_HIX22
3956 1.1 skrll || (bfd_signed_vma) relocation < 0)
3957 1.1 skrll relocation = relocation ^ MINUS_ONE;
3958 1.1 skrll
3959 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3960 1.1 skrll x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3961 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3962 1.1 skrll
3963 1.3 christos r = bfd_check_overflow (howto->complain_on_overflow,
3964 1.13 christos howto->bitsize, howto->rightshift,
3965 1.13 christos bfd_arch_bits_per_address (input_bfd),
3966 1.1 skrll relocation);
3967 1.1 skrll }
3968 1.1 skrll else if (r_type == R_SPARC_LOX10
3969 1.1 skrll || r_type == R_SPARC_GOTDATA_LOX10
3970 1.3 christos || r_type == R_SPARC_GOTDATA_OP_LOX10)
3971 1.3 christos {
3972 1.3 christos bfd_vma x;
3973 1.3 christos
3974 1.3 christos relocation += rel->r_addend;
3975 1.1 skrll if (r_type == R_SPARC_LOX10
3976 1.1 skrll || (bfd_signed_vma) relocation < 0)
3977 1.1 skrll relocation = (relocation & 0x3ff) | 0x1c00;
3978 1.1 skrll else
3979 1.1 skrll relocation = (relocation & 0x3ff);
3980 1.1 skrll
3981 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3982 1.1 skrll x = (x & ~(bfd_vma) 0x1fff) | relocation;
3983 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3984 1.1 skrll
3985 1.1 skrll r = bfd_reloc_ok;
3986 1.1 skrll }
3987 1.1 skrll else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
3988 1.1 skrll && sec_do_relax (input_section)
3989 1.1 skrll && rel->r_offset + 4 < input_section->size)
3990 1.1 skrll {
3991 1.1 skrll #define G0 0
3992 1.1 skrll #define O7 15
3993 1.1 skrll #define XCC (2 << 20)
3994 1.1 skrll #define COND(x) (((x)&0xf)<<25)
3995 1.1 skrll #define CONDA COND(0x8)
3996 1.1 skrll #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3997 1.1 skrll #define INSN_BA (F2(0,2) | CONDA)
3998 1.1 skrll #define INSN_OR F3(2, 0x2, 0)
3999 1.1 skrll #define INSN_NOP F2(0,4)
4000 1.1 skrll
4001 1.1 skrll bfd_vma x, y;
4002 1.1 skrll
4003 1.1 skrll /* If the instruction is a call with either:
4004 1.1 skrll restore
4005 1.1 skrll arithmetic instruction with rd == %o7
4006 1.1 skrll where rs1 != %o7 and rs2 if it is register != %o7
4007 1.1 skrll then we can optimize if the call destination is near
4008 1.1 skrll by changing the call into a branch always. */
4009 1.1 skrll x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4010 1.1 skrll y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4011 1.1 skrll if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4012 1.1 skrll {
4013 1.1 skrll if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4014 1.1 skrll || ((y & OP3(0x28)) == 0 /* arithmetic */
4015 1.1 skrll && (y & RD(~0)) == RD(O7)))
4016 1.1 skrll && (y & RS1(~0)) != RS1(O7)
4017 1.1 skrll && ((y & F3I(~0))
4018 1.1 skrll || (y & RS2(~0)) != RS2(O7)))
4019 1.1 skrll {
4020 1.1 skrll bfd_vma reloc;
4021 1.1 skrll
4022 1.1 skrll reloc = relocation + rel->r_addend - rel->r_offset;
4023 1.1 skrll reloc -= (input_section->output_section->vma
4024 1.1 skrll + input_section->output_offset);
4025 1.1 skrll
4026 1.1 skrll /* Ensure the branch fits into simm22. */
4027 1.1 skrll if ((reloc & 3) == 0
4028 1.1 skrll && ((reloc & ~(bfd_vma)0x7fffff) == 0
4029 1.1 skrll || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4030 1.1 skrll {
4031 1.1 skrll reloc >>= 2;
4032 1.1 skrll
4033 1.1 skrll /* Check whether it fits into simm19. */
4034 1.1 skrll if (((reloc & 0x3c0000) == 0
4035 1.1 skrll || (reloc & 0x3c0000) == 0x3c0000)
4036 1.1 skrll && (ABI_64_P (output_bfd)
4037 1.1 skrll || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4038 1.1 skrll x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4039 1.1 skrll else
4040 1.1 skrll x = INSN_BA | (reloc & 0x3fffff); /* ba */
4041 1.1 skrll bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4042 1.1 skrll r = bfd_reloc_ok;
4043 1.1 skrll if (rel->r_offset >= 4
4044 1.1 skrll && (y & (0xffffffff ^ RS1(~0)))
4045 1.1 skrll == (INSN_OR | RD(O7) | RS2(G0)))
4046 1.1 skrll {
4047 1.1 skrll bfd_vma z;
4048 1.1 skrll unsigned int reg;
4049 1.13 christos
4050 1.1 skrll z = bfd_get_32 (input_bfd,
4051 1.1 skrll contents + rel->r_offset - 4);
4052 1.1 skrll if ((z & (0xffffffff ^ RD(~0)))
4053 1.1 skrll != (INSN_OR | RS1(O7) | RS2(G0)))
4054 1.1 skrll continue;
4055 1.1 skrll
4056 1.1 skrll /* The sequence was
4057 1.1 skrll or %o7, %g0, %rN
4058 1.1 skrll call foo
4059 1.1 skrll or %rN, %g0, %o7
4060 1.1 skrll
4061 1.1 skrll If call foo was replaced with ba, replace
4062 1.13 christos or %rN, %g0, %o7 with nop. */
4063 1.1 skrll
4064 1.1 skrll reg = (y & RS1(~0)) >> 14;
4065 1.1 skrll if (reg != ((z & RD(~0)) >> 25)
4066 1.1 skrll || reg == G0 || reg == O7)
4067 1.1 skrll continue;
4068 1.1 skrll
4069 1.1 skrll bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4070 1.1 skrll contents + rel->r_offset + 4);
4071 1.1 skrll }
4072 1.1 skrll
4073 1.1 skrll }
4074 1.3 christos }
4075 1.16 christos }
4076 1.3 christos }
4077 1.3 christos
4078 1.3 christos if (r == bfd_reloc_continue)
4079 1.3 christos {
4080 1.1 skrll do_relocation:
4081 1.1 skrll r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4082 1.1 skrll contents, rel->r_offset,
4083 1.1 skrll relocation, rel->r_addend);
4084 1.1 skrll }
4085 1.1 skrll if (r != bfd_reloc_ok)
4086 1.1 skrll {
4087 1.1 skrll switch (r)
4088 1.1 skrll {
4089 1.1 skrll default:
4090 1.1 skrll case bfd_reloc_outofrange:
4091 1.7 christos abort ();
4092 1.1 skrll case bfd_reloc_overflow:
4093 1.1 skrll {
4094 1.1 skrll const char *name;
4095 1.6 christos
4096 1.6 christos /* The Solaris native linker silently disregards overflows.
4097 1.6 christos We don't, but this breaks stabs debugging info, whose
4098 1.1 skrll relocations are only 32-bits wide. Ignore overflows in
4099 1.15 christos this case and also for discarded entries. */
4100 1.1 skrll if ((r_type == R_SPARC_32
4101 1.1 skrll || r_type == R_SPARC_UA32
4102 1.1 skrll || r_type == R_SPARC_DISP32)
4103 1.1 skrll && (((input_section->flags & SEC_DEBUGGING) != 0
4104 1.1 skrll && strcmp (bfd_section_name (input_section),
4105 1.1 skrll ".stab") == 0)
4106 1.1 skrll || _bfd_elf_section_offset (output_bfd, info,
4107 1.1 skrll input_section,
4108 1.1 skrll rel->r_offset)
4109 1.1 skrll == (bfd_vma)-1))
4110 1.1 skrll break;
4111 1.1 skrll
4112 1.1 skrll if (h != NULL)
4113 1.1 skrll {
4114 1.1 skrll /* Assume this is a call protected by other code that
4115 1.1 skrll detect the symbol is undefined. If this is the case,
4116 1.1 skrll we can safely ignore the overflow. If not, the
4117 1.1 skrll program is hosed anyway, and a little warning isn't
4118 1.13 christos going to help. */
4119 1.1 skrll if (h->root.type == bfd_link_hash_undefweak
4120 1.1 skrll && howto->pc_relative)
4121 1.1 skrll break;
4122 1.1 skrll
4123 1.1 skrll name = NULL;
4124 1.1 skrll }
4125 1.1 skrll else
4126 1.16 christos {
4127 1.1 skrll name = bfd_elf_string_from_elf_section (input_bfd,
4128 1.15 christos symtab_hdr->sh_link,
4129 1.1 skrll sym->st_name);
4130 1.11 christos if (name == NULL)
4131 1.11 christos return false;
4132 1.11 christos if (*name == '\0')
4133 1.1 skrll name = bfd_section_name (sec);
4134 1.1 skrll }
4135 1.1 skrll (*info->callbacks->reloc_overflow)
4136 1.1 skrll (info, (h ? &h->root : NULL), name, howto->name,
4137 1.1 skrll (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4138 1.1 skrll }
4139 1.16 christos break;
4140 1.1 skrll }
4141 1.1 skrll }
4142 1.1 skrll }
4143 1.1 skrll
4144 1.1 skrll return true;
4145 1.1 skrll }
4146 1.1 skrll
4147 1.1 skrll /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4148 1.1 skrll and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4149 1.1 skrll is the offset of the associated .got.plt entry from
4150 1.1 skrll _GLOBAL_OFFSET_TABLE_. */
4151 1.1 skrll
4152 1.1 skrll static void
4153 1.1 skrll sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4154 1.1 skrll bfd_vma plt_offset, bfd_vma plt_index,
4155 1.1 skrll bfd_vma got_offset)
4156 1.1 skrll {
4157 1.1 skrll bfd_vma got_base;
4158 1.1 skrll const bfd_vma *plt_entry;
4159 1.3 christos struct _bfd_sparc_elf_link_hash_table *htab;
4160 1.3 christos bfd_byte *loc;
4161 1.7 christos Elf_Internal_Rela rela;
4162 1.1 skrll
4163 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
4164 1.1 skrll BFD_ASSERT (htab != NULL);
4165 1.1 skrll
4166 1.1 skrll if (bfd_link_pic (info))
4167 1.1 skrll {
4168 1.1 skrll plt_entry = sparc_vxworks_shared_plt_entry;
4169 1.1 skrll got_base = 0;
4170 1.1 skrll }
4171 1.1 skrll else
4172 1.1 skrll {
4173 1.1 skrll plt_entry = sparc_vxworks_exec_plt_entry;
4174 1.1 skrll got_base = (htab->elf.hgot->root.u.def.value
4175 1.1 skrll + htab->elf.hgot->root.u.def.section->output_offset
4176 1.3 christos + htab->elf.hgot->root.u.def.section->output_section->vma);
4177 1.1 skrll }
4178 1.3 christos
4179 1.1 skrll /* Fill in the entry in the procedure linkage table. */
4180 1.3 christos bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4181 1.1 skrll htab->elf.splt->contents + plt_offset);
4182 1.3 christos bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4183 1.1 skrll htab->elf.splt->contents + plt_offset + 4);
4184 1.3 christos bfd_put_32 (output_bfd, plt_entry[2],
4185 1.1 skrll htab->elf.splt->contents + plt_offset + 8);
4186 1.3 christos bfd_put_32 (output_bfd, plt_entry[3],
4187 1.1 skrll htab->elf.splt->contents + plt_offset + 12);
4188 1.1 skrll bfd_put_32 (output_bfd, plt_entry[4],
4189 1.1 skrll htab->elf.splt->contents + plt_offset + 16);
4190 1.1 skrll bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4191 1.3 christos htab->elf.splt->contents + plt_offset + 20);
4192 1.1 skrll /* PC-relative displacement for a branch to the start of
4193 1.3 christos the PLT section. */
4194 1.1 skrll bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4195 1.1 skrll & 0x003fffff),
4196 1.1 skrll htab->elf.splt->contents + plt_offset + 24);
4197 1.3 christos bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4198 1.1 skrll htab->elf.splt->contents + plt_offset + 28);
4199 1.3 christos
4200 1.3 christos /* Fill in the .got.plt entry, pointing initially at the
4201 1.1 skrll second half of the PLT entry. */
4202 1.3 christos BFD_ASSERT (htab->elf.sgotplt != NULL);
4203 1.1 skrll bfd_put_32 (output_bfd,
4204 1.1 skrll htab->elf.splt->output_section->vma
4205 1.7 christos + htab->elf.splt->output_offset
4206 1.1 skrll + plt_offset + 20,
4207 1.1 skrll htab->elf.sgotplt->contents + got_offset);
4208 1.1 skrll
4209 1.1 skrll /* Add relocations to .rela.plt.unloaded. */
4210 1.1 skrll if (!bfd_link_pic (info))
4211 1.3 christos {
4212 1.3 christos loc = (htab->srelplt2->contents
4213 1.1 skrll + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4214 1.1 skrll
4215 1.1 skrll /* Relocate the initial sethi. */
4216 1.1 skrll rela.r_offset = (htab->elf.splt->output_section->vma
4217 1.1 skrll + htab->elf.splt->output_offset
4218 1.1 skrll + plt_offset);
4219 1.1 skrll rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4220 1.1 skrll rela.r_addend = got_offset;
4221 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4222 1.1 skrll loc += sizeof (Elf32_External_Rela);
4223 1.1 skrll
4224 1.1 skrll /* Likewise the following or. */
4225 1.1 skrll rela.r_offset += 4;
4226 1.3 christos rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4227 1.3 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4228 1.1 skrll loc += sizeof (Elf32_External_Rela);
4229 1.1 skrll
4230 1.1 skrll /* Relocate the .got.plt entry. */
4231 1.1 skrll rela.r_offset = (htab->elf.sgotplt->output_section->vma
4232 1.1 skrll + htab->elf.sgotplt->output_offset
4233 1.1 skrll + got_offset);
4234 1.1 skrll rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4235 1.1 skrll rela.r_addend = plt_offset + 20;
4236 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4237 1.1 skrll }
4238 1.16 christos }
4239 1.1 skrll
4240 1.1 skrll /* Finish up dynamic symbol handling. We set the contents of various
4241 1.1 skrll dynamic sections here. */
4242 1.1 skrll
4243 1.1 skrll bool
4244 1.1 skrll _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4245 1.19 christos struct bfd_link_info *info,
4246 1.13 christos struct elf_link_hash_entry *h,
4247 1.16 christos Elf_Internal_Sym *sym)
4248 1.1 skrll {
4249 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
4250 1.3 christos elf_backend_data *bed;
4251 1.1 skrll struct _bfd_sparc_elf_link_hash_entry *eh;
4252 1.1 skrll bool resolved_to_zero;
4253 1.13 christos
4254 1.13 christos htab = _bfd_sparc_elf_hash_table (info);
4255 1.13 christos BFD_ASSERT (htab != NULL);
4256 1.13 christos bed = get_elf_backend_data (output_bfd);
4257 1.13 christos
4258 1.14 christos eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4259 1.13 christos
4260 1.1 skrll /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4261 1.1 skrll resolved undefined weak symbols in executable so that their
4262 1.1 skrll references have value 0 at run-time. */
4263 1.1 skrll resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4264 1.1 skrll
4265 1.1 skrll if (h->plt.offset != (bfd_vma) -1)
4266 1.1 skrll {
4267 1.1 skrll asection *splt;
4268 1.1 skrll asection *srela;
4269 1.3 christos Elf_Internal_Rela rela;
4270 1.3 christos bfd_byte *loc;
4271 1.3 christos bfd_vma r_offset, got_offset;
4272 1.3 christos int rela_index;
4273 1.3 christos
4274 1.3 christos /* When building a static executable, use .iplt and
4275 1.3 christos .rela.iplt sections for STT_GNU_IFUNC symbols. */
4276 1.3 christos if (htab->elf.splt != NULL)
4277 1.3 christos {
4278 1.3 christos splt = htab->elf.splt;
4279 1.3 christos srela = htab->elf.srelplt;
4280 1.3 christos }
4281 1.1 skrll else
4282 1.3 christos {
4283 1.3 christos splt = htab->elf.iplt;
4284 1.1 skrll srela = htab->elf.irelplt;
4285 1.1 skrll }
4286 1.16 christos
4287 1.1 skrll if (splt == NULL || srela == NULL)
4288 1.1 skrll abort ();
4289 1.1 skrll
4290 1.1 skrll /* Fill in the entry in the .rela.plt section. */
4291 1.1 skrll if (htab->elf.target_os == is_vxworks)
4292 1.1 skrll {
4293 1.1 skrll /* Work out the index of this PLT entry. */
4294 1.1 skrll rela_index = ((h->plt.offset - htab->plt_header_size)
4295 1.1 skrll / htab->plt_entry_size);
4296 1.1 skrll
4297 1.1 skrll /* Calculate the offset of the associated .got.plt entry.
4298 1.1 skrll The first three entries are reserved. */
4299 1.1 skrll got_offset = (rela_index + 3) * 4;
4300 1.1 skrll
4301 1.1 skrll sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4302 1.3 christos rela_index, got_offset);
4303 1.3 christos
4304 1.1 skrll
4305 1.1 skrll /* On VxWorks, the relocation points to the .got.plt entry,
4306 1.3 christos not the .plt entry. */
4307 1.3 christos rela.r_offset = (htab->elf.sgotplt->output_section->vma
4308 1.1 skrll + htab->elf.sgotplt->output_offset
4309 1.1 skrll + got_offset);
4310 1.1 skrll rela.r_addend = 0;
4311 1.16 christos rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4312 1.3 christos R_SPARC_JMP_SLOT);
4313 1.1 skrll }
4314 1.1 skrll else
4315 1.1 skrll {
4316 1.1 skrll bool ifunc = false;
4317 1.1 skrll
4318 1.3 christos /* Fill in the entry in the procedure linkage table. */
4319 1.3 christos rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4320 1.7 christos h->plt.offset, splt->size,
4321 1.3 christos &r_offset);
4322 1.3 christos
4323 1.3 christos if (h == NULL
4324 1.3 christos || h->dynindx == -1
4325 1.16 christos || ((bfd_link_executable (info)
4326 1.3 christos || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4327 1.3 christos && h->def_regular
4328 1.3 christos && h->type == STT_GNU_IFUNC))
4329 1.3 christos {
4330 1.3 christos ifunc = true;
4331 1.3 christos BFD_ASSERT (h == NULL
4332 1.3 christos || (h->type == STT_GNU_IFUNC
4333 1.1 skrll && h->def_regular
4334 1.1 skrll && (h->root.type == bfd_link_hash_defined
4335 1.3 christos || h->root.type == bfd_link_hash_defweak)));
4336 1.3 christos }
4337 1.1 skrll
4338 1.3 christos rela.r_offset = r_offset
4339 1.3 christos + (splt->output_section->vma + splt->output_offset);
4340 1.3 christos if (ABI_64_P (output_bfd)
4341 1.3 christos && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4342 1.3 christos {
4343 1.3 christos if (ifunc)
4344 1.3 christos {
4345 1.3 christos rela.r_addend = (h->root.u.def.section->output_section->vma
4346 1.3 christos + h->root.u.def.section->output_offset
4347 1.3 christos + h->root.u.def.value);
4348 1.3 christos rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4349 1.3 christos R_SPARC_IRELATIVE);
4350 1.3 christos }
4351 1.3 christos else
4352 1.3 christos {
4353 1.3 christos rela.r_addend = (-(h->plt.offset + 4)
4354 1.1 skrll - splt->output_section->vma
4355 1.1 skrll - splt->output_offset);
4356 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4357 1.3 christos R_SPARC_JMP_SLOT);
4358 1.3 christos }
4359 1.3 christos }
4360 1.3 christos else
4361 1.3 christos {
4362 1.3 christos if (ifunc)
4363 1.3 christos {
4364 1.3 christos rela.r_addend = (h->root.u.def.section->output_section->vma
4365 1.3 christos + h->root.u.def.section->output_offset
4366 1.3 christos + h->root.u.def.value);
4367 1.3 christos rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4368 1.3 christos R_SPARC_JMP_IREL);
4369 1.3 christos }
4370 1.3 christos else
4371 1.1 skrll {
4372 1.1 skrll rela.r_addend = 0;
4373 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4374 1.1 skrll R_SPARC_JMP_SLOT);
4375 1.1 skrll }
4376 1.1 skrll }
4377 1.1 skrll }
4378 1.1 skrll
4379 1.1 skrll /* Adjust for the first 4 reserved elements in the .plt section
4380 1.1 skrll when setting the offset in the .rela.plt section.
4381 1.1 skrll Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4382 1.1 skrll thus .plt[4] has corresponding .rela.plt[0] and so on. */
4383 1.14 christos
4384 1.1 skrll loc = srela->contents;
4385 1.1 skrll loc += rela_index * bed->s->sizeof_rela;
4386 1.1 skrll bed->s->swap_reloca_out (output_bfd, &rela, loc);
4387 1.1 skrll
4388 1.1 skrll if (!resolved_to_zero && !h->def_regular)
4389 1.1 skrll {
4390 1.1 skrll /* Mark the symbol as undefined, rather than as defined in
4391 1.1 skrll the .plt section. Leave the value alone. */
4392 1.1 skrll sym->st_shndx = SHN_UNDEF;
4393 1.1 skrll /* If the symbol is weak, we do need to clear the value.
4394 1.1 skrll Otherwise, the PLT entry would provide a definition for
4395 1.1 skrll the symbol even if the symbol wasn't defined anywhere,
4396 1.1 skrll and so the symbol would never be NULL. */
4397 1.14 christos if (!h->ref_regular_nonweak)
4398 1.14 christos sym->st_value = 0;
4399 1.1 skrll }
4400 1.1 skrll }
4401 1.13 christos
4402 1.14 christos /* Don't generate dynamic GOT relocation against resolved undefined weak
4403 1.14 christos symbols in an executable. */
4404 1.14 christos if (h->got.offset != (bfd_vma) -1
4405 1.1 skrll && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4406 1.1 skrll && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4407 1.1 skrll && !(h->root.type == bfd_link_hash_undefweak
4408 1.1 skrll && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4409 1.1 skrll || resolved_to_zero)))
4410 1.1 skrll {
4411 1.1 skrll asection *sgot;
4412 1.3 christos asection *srela;
4413 1.3 christos Elf_Internal_Rela rela;
4414 1.1 skrll
4415 1.1 skrll /* This symbol has an entry in the GOT. Set it up. */
4416 1.1 skrll
4417 1.1 skrll sgot = htab->elf.sgot;
4418 1.1 skrll srela = htab->elf.srelgot;
4419 1.1 skrll BFD_ASSERT (sgot != NULL && srela != NULL);
4420 1.1 skrll
4421 1.1 skrll rela.r_offset = (sgot->output_section->vma
4422 1.1 skrll + sgot->output_offset
4423 1.1 skrll + (h->got.offset &~ (bfd_vma) 1));
4424 1.1 skrll
4425 1.7 christos /* If this is a -Bsymbolic link, and the symbol is defined
4426 1.3 christos locally, we just want to emit a RELATIVE reloc. Likewise if
4427 1.1 skrll the symbol was forced to be local because of a version file.
4428 1.1 skrll The entry in the global offset table will already have been
4429 1.3 christos initialized in the relocate_section function. */
4430 1.3 christos if (! bfd_link_pic (info)
4431 1.3 christos && h->type == STT_GNU_IFUNC
4432 1.3 christos && h->def_regular)
4433 1.3 christos {
4434 1.3 christos asection *plt;
4435 1.3 christos
4436 1.3 christos /* We load the GOT entry with the PLT entry. */
4437 1.3 christos plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4438 1.16 christos SPARC_ELF_PUT_WORD (htab, output_bfd,
4439 1.3 christos (plt->output_section->vma
4440 1.14 christos + plt->output_offset + h->plt.offset),
4441 1.16 christos htab->elf.sgot->contents
4442 1.16 christos + (h->got.offset & ~(bfd_vma) 1));
4443 1.16 christos return true;
4444 1.16 christos }
4445 1.3 christos
4446 1.1 skrll if (bfd_link_pic (info)
4447 1.3 christos && (h->root.type == bfd_link_hash_defined
4448 1.3 christos || h->root.type == bfd_link_hash_defweak)
4449 1.3 christos && SYMBOL_REFERENCES_LOCAL (info, h))
4450 1.3 christos {
4451 1.1 skrll asection *sec = h->root.u.def.section;
4452 1.1 skrll if (h->type == STT_GNU_IFUNC)
4453 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4454 1.1 skrll else
4455 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4456 1.1 skrll rela.r_addend = (h->root.u.def.value
4457 1.1 skrll + sec->output_section->vma
4458 1.1 skrll + sec->output_offset);
4459 1.1 skrll }
4460 1.1 skrll else
4461 1.1 skrll {
4462 1.1 skrll rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4463 1.1 skrll rela.r_addend = 0;
4464 1.1 skrll }
4465 1.1 skrll
4466 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4467 1.1 skrll sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4468 1.1 skrll sparc_elf_append_rela (output_bfd, srela, &rela);
4469 1.1 skrll }
4470 1.1 skrll
4471 1.1 skrll if (h->needs_copy)
4472 1.1 skrll {
4473 1.1 skrll asection *s;
4474 1.1 skrll Elf_Internal_Rela rela;
4475 1.1 skrll
4476 1.1 skrll /* This symbols needs a copy reloc. Set it up. */
4477 1.1 skrll BFD_ASSERT (h->dynindx != -1);
4478 1.1 skrll
4479 1.13 christos rela.r_offset = (h->root.u.def.value
4480 1.13 christos + h->root.u.def.section->output_section->vma
4481 1.13 christos + h->root.u.def.section->output_offset);
4482 1.13 christos rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4483 1.1 skrll rela.r_addend = 0;
4484 1.1 skrll if (h->root.u.def.section == htab->elf.sdynrelro)
4485 1.1 skrll s = htab->elf.sreldynrelro;
4486 1.1 skrll else
4487 1.1 skrll s = htab->elf.srelbss;
4488 1.1 skrll sparc_elf_append_rela (output_bfd, s, &rela);
4489 1.3 christos }
4490 1.7 christos
4491 1.16 christos /* Mark some specially defined symbols as absolute. On VxWorks,
4492 1.3 christos _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4493 1.1 skrll ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4494 1.1 skrll if (sym != NULL
4495 1.16 christos && (h == htab->elf.hdynamic
4496 1.1 skrll || (htab->elf.target_os != is_vxworks
4497 1.1 skrll && (h == htab->elf.hgot || h == htab->elf.hplt))))
4498 1.1 skrll sym->st_shndx = SHN_ABS;
4499 1.1 skrll
4500 1.16 christos return true;
4501 1.1 skrll }
4502 1.1 skrll
4503 1.1 skrll /* Finish up the dynamic sections. */
4504 1.1 skrll
4505 1.1 skrll static bool
4506 1.19 christos sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4507 1.1 skrll bfd *dynobj, asection *sdyn,
4508 1.1 skrll asection *splt ATTRIBUTE_UNUSED)
4509 1.1 skrll {
4510 1.16 christos struct _bfd_sparc_elf_link_hash_table *htab;
4511 1.1 skrll elf_backend_data *bed;
4512 1.1 skrll bfd_byte *dyncon, *dynconend;
4513 1.3 christos size_t dynsize;
4514 1.1 skrll int stt_regidx = -1;
4515 1.1 skrll bool abi_64_p;
4516 1.1 skrll
4517 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
4518 1.1 skrll BFD_ASSERT (htab != NULL);
4519 1.1 skrll bed = get_elf_backend_data (output_bfd);
4520 1.1 skrll dynsize = bed->s->sizeof_dyn;
4521 1.16 christos dynconend = sdyn->contents + sdyn->size;
4522 1.1 skrll abi_64_p = ABI_64_P (output_bfd);
4523 1.1 skrll for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4524 1.1 skrll {
4525 1.16 christos Elf_Internal_Dyn dyn;
4526 1.1 skrll bool size;
4527 1.1 skrll
4528 1.1 skrll bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4529 1.3 christos
4530 1.1 skrll if (htab->elf.target_os == is_vxworks && dyn.d_tag == DT_PLTGOT)
4531 1.3 christos {
4532 1.3 christos /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4533 1.1 skrll not to the start of the PLT. */
4534 1.1 skrll if (htab->elf.sgotplt)
4535 1.1 skrll {
4536 1.16 christos dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4537 1.1 skrll + htab->elf.sgotplt->output_offset);
4538 1.1 skrll bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4539 1.1 skrll }
4540 1.1 skrll }
4541 1.1 skrll else if (htab->elf.target_os == is_vxworks
4542 1.1 skrll && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4543 1.1 skrll bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4544 1.1 skrll else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4545 1.1 skrll {
4546 1.16 christos if (stt_regidx == -1)
4547 1.1 skrll {
4548 1.1 skrll stt_regidx =
4549 1.1 skrll _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4550 1.1 skrll if (stt_regidx == -1)
4551 1.1 skrll return false;
4552 1.1 skrll }
4553 1.13 christos dyn.d_un.d_val = stt_regidx++;
4554 1.13 christos bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4555 1.1 skrll }
4556 1.1 skrll else
4557 1.13 christos {
4558 1.13 christos asection *s;
4559 1.16 christos
4560 1.13 christos switch (dyn.d_tag)
4561 1.13 christos {
4562 1.13 christos case DT_PLTGOT:
4563 1.16 christos s = htab->elf.splt;
4564 1.13 christos size = false;
4565 1.13 christos break;
4566 1.13 christos case DT_PLTRELSZ:
4567 1.16 christos s = htab->elf.srelplt;
4568 1.13 christos size = true;
4569 1.13 christos break;
4570 1.13 christos case DT_JMPREL:
4571 1.1 skrll s = htab->elf.srelplt;
4572 1.1 skrll size = false;
4573 1.13 christos break;
4574 1.13 christos default:
4575 1.13 christos continue;
4576 1.1 skrll }
4577 1.13 christos
4578 1.13 christos if (s == NULL)
4579 1.1 skrll dyn.d_un.d_val = 0;
4580 1.13 christos else
4581 1.1 skrll {
4582 1.13 christos if (!size)
4583 1.1 skrll dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4584 1.1 skrll else
4585 1.16 christos dyn.d_un.d_val = s->size;
4586 1.1 skrll }
4587 1.1 skrll bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4588 1.1 skrll }
4589 1.1 skrll }
4590 1.1 skrll return true;
4591 1.1 skrll }
4592 1.1 skrll
4593 1.1 skrll /* Install the first PLT entry in a VxWorks executable and make sure that
4594 1.1 skrll .rela.plt.unloaded relocations have the correct symbol indexes. */
4595 1.1 skrll
4596 1.1 skrll static void
4597 1.1 skrll sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4598 1.1 skrll {
4599 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
4600 1.3 christos Elf_Internal_Rela rela;
4601 1.1 skrll bfd_vma got_base;
4602 1.1 skrll bfd_byte *loc;
4603 1.1 skrll
4604 1.1 skrll htab = _bfd_sparc_elf_hash_table (info);
4605 1.1 skrll BFD_ASSERT (htab != NULL);
4606 1.1 skrll
4607 1.1 skrll /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4608 1.1 skrll got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4609 1.1 skrll + htab->elf.hgot->root.u.def.section->output_offset
4610 1.3 christos + htab->elf.hgot->root.u.def.value);
4611 1.1 skrll
4612 1.1 skrll /* Install the initial PLT entry. */
4613 1.3 christos bfd_put_32 (output_bfd,
4614 1.1 skrll sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4615 1.1 skrll htab->elf.splt->contents);
4616 1.3 christos bfd_put_32 (output_bfd,
4617 1.1 skrll sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4618 1.1 skrll htab->elf.splt->contents + 4);
4619 1.3 christos bfd_put_32 (output_bfd,
4620 1.1 skrll sparc_vxworks_exec_plt0_entry[2],
4621 1.1 skrll htab->elf.splt->contents + 8);
4622 1.3 christos bfd_put_32 (output_bfd,
4623 1.1 skrll sparc_vxworks_exec_plt0_entry[3],
4624 1.1 skrll htab->elf.splt->contents + 12);
4625 1.1 skrll bfd_put_32 (output_bfd,
4626 1.1 skrll sparc_vxworks_exec_plt0_entry[4],
4627 1.3 christos htab->elf.splt->contents + 16);
4628 1.3 christos
4629 1.1 skrll loc = htab->srelplt2->contents;
4630 1.1 skrll
4631 1.1 skrll /* Add an unloaded relocation for the initial entry's "sethi". */
4632 1.1 skrll rela.r_offset = (htab->elf.splt->output_section->vma
4633 1.1 skrll + htab->elf.splt->output_offset);
4634 1.1 skrll rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4635 1.1 skrll rela.r_addend = 8;
4636 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4637 1.1 skrll loc += sizeof (Elf32_External_Rela);
4638 1.1 skrll
4639 1.1 skrll /* Likewise the following "or". */
4640 1.1 skrll rela.r_offset += 4;
4641 1.1 skrll rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4642 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4643 1.1 skrll loc += sizeof (Elf32_External_Rela);
4644 1.1 skrll
4645 1.1 skrll /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4646 1.1 skrll the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4647 1.1 skrll in which symbols were output. */
4648 1.1 skrll while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4649 1.1 skrll {
4650 1.1 skrll Elf_Internal_Rela rel;
4651 1.1 skrll
4652 1.1 skrll /* The entry's initial "sethi" (against _G_O_T_). */
4653 1.1 skrll bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4654 1.1 skrll rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4655 1.1 skrll bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4656 1.1 skrll loc += sizeof (Elf32_External_Rela);
4657 1.1 skrll
4658 1.1 skrll /* The following "or" (also against _G_O_T_). */
4659 1.1 skrll bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4660 1.1 skrll rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4661 1.1 skrll bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4662 1.1 skrll loc += sizeof (Elf32_External_Rela);
4663 1.1 skrll
4664 1.1 skrll /* The .got.plt entry (against _P_L_T_). */
4665 1.1 skrll bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4666 1.1 skrll rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4667 1.1 skrll bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4668 1.1 skrll loc += sizeof (Elf32_External_Rela);
4669 1.1 skrll }
4670 1.1 skrll }
4671 1.1 skrll
4672 1.1 skrll /* Install the first PLT entry in a VxWorks shared object. */
4673 1.1 skrll
4674 1.1 skrll static void
4675 1.1 skrll sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4676 1.3 christos {
4677 1.3 christos struct _bfd_sparc_elf_link_hash_table *htab;
4678 1.1 skrll unsigned int i;
4679 1.1 skrll
4680 1.3 christos htab = _bfd_sparc_elf_hash_table (info);
4681 1.3 christos BFD_ASSERT (htab != NULL);
4682 1.3 christos
4683 1.3 christos for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4684 1.3 christos bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4685 1.3 christos htab->elf.splt->contents + i * 4);
4686 1.16 christos }
4687 1.3 christos
4688 1.3 christos /* Finish up local dynamic symbol handling. We set the contents of
4689 1.3 christos various dynamic sections here. */
4690 1.3 christos
4691 1.3 christos static int
4692 1.7 christos finish_local_dynamic_symbol (void **slot, void *inf)
4693 1.3 christos {
4694 1.3 christos struct elf_link_hash_entry *h
4695 1.3 christos = (struct elf_link_hash_entry *) *slot;
4696 1.1 skrll struct bfd_link_info *info
4697 1.1 skrll = (struct bfd_link_info *) inf;
4698 1.13 christos
4699 1.13 christos return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4700 1.13 christos h, NULL);
4701 1.13 christos }
4702 1.16 christos
4703 1.13 christos /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4704 1.13 christos here since undefined weak symbol may not be dynamic and may not be
4705 1.13 christos called for _bfd_sparc_elf_finish_dynamic_symbol. */
4706 1.13 christos
4707 1.13 christos static bool
4708 1.13 christos pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4709 1.13 christos void *inf)
4710 1.13 christos {
4711 1.16 christos struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4712 1.13 christos struct bfd_link_info *info = (struct bfd_link_info *) inf;
4713 1.13 christos
4714 1.13 christos if (h->root.type != bfd_link_hash_undefweak
4715 1.13 christos || h->dynindx != -1)
4716 1.13 christos return true;
4717 1.16 christos
4718 1.19 christos return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4719 1.19 christos h, NULL);
4720 1.19 christos }
4721 1.1 skrll
4722 1.1 skrll bool
4723 1.1 skrll _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd,
4724 1.1 skrll struct bfd_link_info *info,
4725 1.1 skrll bfd_byte *buf ATTRIBUTE_UNUSED)
4726 1.1 skrll {
4727 1.3 christos bfd *dynobj;
4728 1.1 skrll asection *sdyn;
4729 1.1 skrll struct _bfd_sparc_elf_link_hash_table *htab;
4730 1.15 christos
4731 1.15 christos htab = _bfd_sparc_elf_hash_table (info);
4732 1.15 christos BFD_ASSERT (htab != NULL);
4733 1.15 christos dynobj = htab->elf.dynobj;
4734 1.15 christos
4735 1.15 christos /* We arranged in size_dynamic_sections to put the STT_REGISTER
4736 1.15 christos entries at the end of the dynlocal list, so they came at the end
4737 1.15 christos of the local symbols in the symtab. Except that they aren't
4738 1.15 christos STB_LOCAL, so we need to back up symtab->sh_info. */
4739 1.15 christos if (ABI_64_P (output_bfd)
4740 1.15 christos && elf_hash_table (info)->dynlocal)
4741 1.15 christos {
4742 1.15 christos asection *dynsymsec = bfd_get_linker_section (dynobj, ".dynsym");
4743 1.15 christos struct elf_link_local_dynamic_entry *e;
4744 1.15 christos
4745 1.15 christos for (e = elf_hash_table (info)->dynlocal; e ; e = e->next)
4746 1.15 christos if (e->input_indx == -1)
4747 1.15 christos break;
4748 1.6 christos if (e)
4749 1.1 skrll elf_section_data (dynsymsec->output_section)->this_hdr.sh_info
4750 1.1 skrll = e->dynindx;
4751 1.1 skrll }
4752 1.1 skrll
4753 1.1 skrll sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4754 1.6 christos
4755 1.1 skrll if (elf_hash_table (info)->dynamic_sections_created)
4756 1.1 skrll {
4757 1.1 skrll asection *splt;
4758 1.16 christos
4759 1.1 skrll splt = htab->elf.splt;
4760 1.1 skrll BFD_ASSERT (splt != NULL && sdyn != NULL);
4761 1.1 skrll
4762 1.1 skrll if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4763 1.16 christos return false;
4764 1.1 skrll
4765 1.7 christos /* Initialize the contents of the .plt section. */
4766 1.1 skrll if (splt->size > 0)
4767 1.1 skrll {
4768 1.1 skrll if (htab->elf.target_os == is_vxworks)
4769 1.1 skrll {
4770 1.1 skrll if (bfd_link_pic (info))
4771 1.1 skrll sparc_vxworks_finish_shared_plt (output_bfd, info);
4772 1.1 skrll else
4773 1.1 skrll sparc_vxworks_finish_exec_plt (output_bfd, info);
4774 1.1 skrll }
4775 1.1 skrll else
4776 1.1 skrll {
4777 1.1 skrll memset (splt->contents, 0, htab->plt_header_size);
4778 1.1 skrll if (!ABI_64_P (output_bfd))
4779 1.7 christos bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4780 1.13 christos splt->contents + splt->size - 4);
4781 1.16 christos }
4782 1.16 christos }
4783 1.13 christos
4784 1.1 skrll if (elf_section_data (splt->output_section) != NULL)
4785 1.1 skrll elf_section_data (splt->output_section)->this_hdr.sh_entsize
4786 1.1 skrll = ((htab->elf.target_os == is_vxworks
4787 1.1 skrll || !ABI_64_P (output_bfd))
4788 1.3 christos ? 0 : htab->plt_entry_size);
4789 1.1 skrll }
4790 1.1 skrll
4791 1.1 skrll /* Set the first entry in the global offset table to the address of
4792 1.1 skrll the dynamic section. */
4793 1.1 skrll if (htab->elf.sgot && htab->elf.sgot->size > 0)
4794 1.3 christos {
4795 1.1 skrll bfd_vma val = (sdyn ?
4796 1.1 skrll sdyn->output_section->vma + sdyn->output_offset :
4797 1.3 christos 0);
4798 1.3 christos
4799 1.1 skrll SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
4800 1.1 skrll }
4801 1.3 christos
4802 1.3 christos if (htab->elf.sgot)
4803 1.3 christos elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4804 1.13 christos SPARC_ELF_WORD_BYTES (htab);
4805 1.13 christos
4806 1.13 christos /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4807 1.13 christos htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4808 1.13 christos
4809 1.16 christos /* Fill PLT entries for undefined weak symbols in PIE. */
4810 1.1 skrll if (bfd_link_pie (info))
4811 1.1 skrll bfd_hash_traverse (&info->hash->table,
4812 1.1 skrll pie_finish_undefweak_symbol,
4813 1.1 skrll info);
4814 1.1 skrll return true;
4815 1.16 christos }
4816 1.1 skrll
4817 1.1 skrll
4818 1.11 christos /* Set the right machine number for a SPARC ELF file. */
4820 1.11 christos
4821 1.11 christos bool
4822 1.11 christos _bfd_sparc_elf_object_p (bfd *abfd)
4823 1.11 christos {
4824 1.13 christos obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4825 1.13 christos obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4826 1.11 christos obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4827 1.13 christos
4828 1.13 christos unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4829 1.13 christos unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
4830 1.13 christos | ELF_SPARC_HWCAP_VIS3
4831 1.13 christos | ELF_SPARC_HWCAP_HPC);
4832 1.13 christos unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
4833 1.13 christos | ELF_SPARC_HWCAP_DES
4834 1.13 christos | ELF_SPARC_HWCAP_KASUMI
4835 1.13 christos | ELF_SPARC_HWCAP_CAMELLIA
4836 1.13 christos | ELF_SPARC_HWCAP_MD5
4837 1.13 christos | ELF_SPARC_HWCAP_SHA1
4838 1.13 christos | ELF_SPARC_HWCAP_SHA256
4839 1.11 christos | ELF_SPARC_HWCAP_SHA512
4840 1.13 christos | ELF_SPARC_HWCAP_MPMUL
4841 1.11 christos | ELF_SPARC_HWCAP_MONT
4842 1.13 christos | ELF_SPARC_HWCAP_CRC32C
4843 1.13 christos | ELF_SPARC_HWCAP_CBCOND
4844 1.13 christos | ELF_SPARC_HWCAP_PAUSE);
4845 1.13 christos unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
4846 1.13 christos | ELF_SPARC_HWCAP_IMA);
4847 1.13 christos unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
4848 1.13 christos | ELF_SPARC_HWCAP2_MWAIT
4849 1.13 christos | ELF_SPARC_HWCAP2_XMPMUL
4850 1.13 christos | ELF_SPARC_HWCAP2_XMONT);
4851 1.13 christos unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
4852 1.13 christos | ELF_SPARC_HWCAP2_ONADDSUB
4853 1.11 christos | ELF_SPARC_HWCAP2_ONMUL
4854 1.1 skrll | ELF_SPARC_HWCAP2_ONDIV
4855 1.1 skrll | ELF_SPARC_HWCAP2_DICTUNP
4856 1.1 skrll | ELF_SPARC_HWCAP2_FPCMPSHL
4857 1.1 skrll | ELF_SPARC_HWCAP2_RLE
4858 1.13 christos | ELF_SPARC_HWCAP2_SHA3);
4859 1.13 christos
4860 1.13 christos if (ABI_64_P (abfd))
4861 1.13 christos {
4862 1.11 christos unsigned long mach = bfd_mach_sparc_v9;
4863 1.13 christos
4864 1.11 christos if (hwcaps2->i & m8_hwcaps2_mask)
4865 1.13 christos mach = bfd_mach_sparc_v9m8;
4866 1.11 christos else if (hwcaps2->i & v9m_hwcaps2_mask)
4867 1.13 christos mach = bfd_mach_sparc_v9m;
4868 1.11 christos else if (hwcaps->i & v9v_hwcaps_mask)
4869 1.13 christos mach = bfd_mach_sparc_v9v;
4870 1.11 christos else if (hwcaps->i & v9e_hwcaps_mask)
4871 1.1 skrll mach = bfd_mach_sparc_v9e;
4872 1.1 skrll else if (hwcaps->i & v9d_hwcaps_mask)
4873 1.1 skrll mach = bfd_mach_sparc_v9d;
4874 1.1 skrll else if (hwcaps->i & v9c_hwcaps_mask)
4875 1.1 skrll mach = bfd_mach_sparc_v9c;
4876 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4877 1.1 skrll mach = bfd_mach_sparc_v9b;
4878 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4879 1.1 skrll mach = bfd_mach_sparc_v9a;
4880 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4881 1.13 christos }
4882 1.13 christos else
4883 1.13 christos {
4884 1.11 christos if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4885 1.11 christos {
4886 1.13 christos if (hwcaps2->i & m8_hwcaps2_mask)
4887 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4888 1.11 christos bfd_mach_sparc_v8plusm8);
4889 1.13 christos else if (hwcaps2->i & v9m_hwcaps2_mask)
4890 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4891 1.11 christos bfd_mach_sparc_v8plusm);
4892 1.13 christos else if (hwcaps->i & v9v_hwcaps_mask)
4893 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4894 1.11 christos bfd_mach_sparc_v8plusv);
4895 1.13 christos else if (hwcaps->i & v9e_hwcaps_mask)
4896 1.13 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4897 1.11 christos bfd_mach_sparc_v8pluse);
4898 1.11 christos else if (hwcaps->i & v9d_hwcaps_mask)
4899 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4900 1.1 skrll bfd_mach_sparc_v8plusd);
4901 1.1 skrll else if (hwcaps->i & v9c_hwcaps_mask)
4902 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4903 1.1 skrll bfd_mach_sparc_v8plusc);
4904 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4905 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4906 1.1 skrll bfd_mach_sparc_v8plusb);
4907 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4908 1.16 christos return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4909 1.1 skrll bfd_mach_sparc_v8plusa);
4910 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4911 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4912 1.1 skrll bfd_mach_sparc_v8plus);
4913 1.1 skrll else
4914 1.1 skrll return false;
4915 1.1 skrll }
4916 1.1 skrll else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4917 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4918 1.1 skrll bfd_mach_sparc_sparclite_le);
4919 1.1 skrll else
4920 1.1 skrll return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4921 1.1 skrll }
4922 1.1 skrll }
4923 1.1 skrll
4924 1.1 skrll /* Return address for Ith PLT stub in section PLT, for relocation REL
4925 1.1 skrll or (bfd_vma) -1 if it should not be included. */
4926 1.1 skrll
4927 1.1 skrll bfd_vma
4928 1.1 skrll _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4929 1.1 skrll {
4930 1.1 skrll if (ABI_64_P (plt->owner))
4931 1.1 skrll {
4932 1.1 skrll bfd_vma j;
4933 1.1 skrll
4934 1.1 skrll i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4935 1.1 skrll if (i < PLT64_LARGE_THRESHOLD)
4936 1.1 skrll return plt->vma + i * PLT64_ENTRY_SIZE;
4937 1.1 skrll
4938 1.1 skrll j = (i - PLT64_LARGE_THRESHOLD) % 160;
4939 1.6 christos i -= j;
4940 1.6 christos return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4941 1.6 christos }
4942 1.6 christos else
4943 1.16 christos return rel->address;
4944 1.13 christos }
4945 1.6 christos
4946 1.13 christos /* Merge backend specific data from an object file to the output
4947 1.6 christos object file when linking. */
4948 1.6 christos
4949 1.6 christos bool
4950 1.6 christos _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4951 1.6 christos {
4952 1.6 christos bfd *obfd = info->output_bfd;
4953 1.6 christos obj_attribute *in_attr, *in_attrs;
4954 1.6 christos obj_attribute *out_attr, *out_attrs;
4955 1.6 christos
4956 1.6 christos if (!elf_known_obj_attributes_proc (obfd)[0].i)
4957 1.6 christos {
4958 1.6 christos /* This is the first object. Copy the attributes. */
4959 1.16 christos _bfd_elf_copy_obj_attributes (ibfd, obfd);
4960 1.6 christos
4961 1.6 christos /* Use the Tag_null value to indicate the attributes have been
4962 1.6 christos initialized. */
4963 1.6 christos elf_known_obj_attributes_proc (obfd)[0].i = 1;
4964 1.6 christos
4965 1.6 christos return true;
4966 1.6 christos }
4967 1.6 christos
4968 1.6 christos in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4969 1.7 christos out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4970 1.7 christos
4971 1.7 christos in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
4972 1.7 christos out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
4973 1.7 christos
4974 1.7 christos out_attr->i |= in_attr->i;
4975 1.7 christos out_attr->type = 1;
4976 1.7 christos
4977 1.6 christos in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
4978 1.13 christos out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
4979 1.6 christos
4980 1.16 christos out_attr->i |= in_attr->i;
4981 1.6 christos out_attr->type = 1;
4982
4983 /* Merge Tag_compatibility attributes and any common GNU ones. */
4984 _bfd_elf_merge_object_attributes (ibfd, info);
4985
4986 return true;
4987 }
4988