Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Intel 80386/80486-specific support for 32-bit ELF |
7898deda | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
638632bd | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "bfdlink.h" | |
24 | #include "libbfd.h" | |
25 | #include "elf-bfd.h" | |
26 | ||
27 | static reloc_howto_type *elf_i386_reloc_type_lookup | |
28 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
29 | static void elf_i386_info_to_howto | |
30 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); | |
31 | static void elf_i386_info_to_howto_rel | |
32 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); | |
ebe50bae AM |
33 | static boolean elf_i386_is_local_label_name |
34 | PARAMS ((bfd *, const char *)); | |
38701953 AM |
35 | static boolean elf_i386_grok_prstatus |
36 | PARAMS ((bfd *abfd, Elf_Internal_Note *note)); | |
37 | static boolean elf_i386_grok_psinfo | |
38 | PARAMS ((bfd *abfd, Elf_Internal_Note *note)); | |
39 | static struct bfd_hash_entry *link_hash_newfunc | |
252b5132 RH |
40 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
41 | static struct bfd_link_hash_table *elf_i386_link_hash_table_create | |
42 | PARAMS ((bfd *)); | |
ebe50bae AM |
43 | static boolean create_got_section |
44 | PARAMS((bfd *, struct bfd_link_info *)); | |
6725bdbf AM |
45 | static boolean elf_i386_create_dynamic_sections |
46 | PARAMS((bfd *, struct bfd_link_info *)); | |
ebe50bae AM |
47 | static void |
48 | elf_i386_copy_indirect_symbol | |
49 | PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *)); | |
252b5132 RH |
50 | static boolean elf_i386_check_relocs |
51 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
52 | const Elf_Internal_Rela *)); | |
a7b97311 AM |
53 | static asection *elf_i386_gc_mark_hook |
54 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
55 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
56 | static boolean elf_i386_gc_sweep_hook | |
57 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
58 | const Elf_Internal_Rela *)); | |
252b5132 RH |
59 | static boolean elf_i386_adjust_dynamic_symbol |
60 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
0c715baa AM |
61 | static boolean allocate_dynrelocs |
62 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
63 | static boolean readonly_dynrelocs | |
6725bdbf | 64 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
38701953 AM |
65 | static boolean elf_i386_fake_sections |
66 | PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *)); | |
252b5132 RH |
67 | static boolean elf_i386_size_dynamic_sections |
68 | PARAMS ((bfd *, struct bfd_link_info *)); | |
69 | static boolean elf_i386_relocate_section | |
70 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
71 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
72 | static boolean elf_i386_finish_dynamic_symbol | |
73 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, | |
74 | Elf_Internal_Sym *)); | |
f51e552e AM |
75 | static enum elf_reloc_type_class elf_i386_reloc_type_class |
76 | PARAMS ((const Elf_Internal_Rela *)); | |
38701953 AM |
77 | static boolean elf_i386_finish_dynamic_sections |
78 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 RH |
79 | |
80 | #define USE_REL 1 /* 386 uses REL relocations instead of RELA */ | |
81 | ||
82 | #include "elf/i386.h" | |
83 | ||
84 | static reloc_howto_type elf_howto_table[]= | |
85 | { | |
1b452ec6 AM |
86 | HOWTO(R_386_NONE, 0, 0, 0, false, 0, complain_overflow_bitfield, |
87 | bfd_elf_generic_reloc, "R_386_NONE", | |
88 | true, 0x00000000, 0x00000000, false), | |
89 | HOWTO(R_386_32, 0, 2, 32, false, 0, complain_overflow_bitfield, | |
90 | bfd_elf_generic_reloc, "R_386_32", | |
91 | true, 0xffffffff, 0xffffffff, false), | |
92 | HOWTO(R_386_PC32, 0, 2, 32, true, 0, complain_overflow_bitfield, | |
93 | bfd_elf_generic_reloc, "R_386_PC32", | |
94 | true, 0xffffffff, 0xffffffff, true), | |
95 | HOWTO(R_386_GOT32, 0, 2, 32, false, 0, complain_overflow_bitfield, | |
96 | bfd_elf_generic_reloc, "R_386_GOT32", | |
97 | true, 0xffffffff, 0xffffffff, false), | |
98 | HOWTO(R_386_PLT32, 0, 2, 32, true, 0, complain_overflow_bitfield, | |
99 | bfd_elf_generic_reloc, "R_386_PLT32", | |
100 | true, 0xffffffff, 0xffffffff, true), | |
101 | HOWTO(R_386_COPY, 0, 2, 32, false, 0, complain_overflow_bitfield, | |
102 | bfd_elf_generic_reloc, "R_386_COPY", | |
103 | true, 0xffffffff, 0xffffffff, false), | |
104 | HOWTO(R_386_GLOB_DAT, 0, 2, 32, false, 0, complain_overflow_bitfield, | |
105 | bfd_elf_generic_reloc, "R_386_GLOB_DAT", | |
106 | true, 0xffffffff, 0xffffffff, false), | |
107 | HOWTO(R_386_JUMP_SLOT, 0, 2, 32, false, 0, complain_overflow_bitfield, | |
108 | bfd_elf_generic_reloc, "R_386_JUMP_SLOT", | |
109 | true, 0xffffffff, 0xffffffff, false), | |
110 | HOWTO(R_386_RELATIVE, 0, 2, 32, false, 0, complain_overflow_bitfield, | |
111 | bfd_elf_generic_reloc, "R_386_RELATIVE", | |
112 | true, 0xffffffff, 0xffffffff, false), | |
113 | HOWTO(R_386_GOTOFF, 0, 2, 32, false, 0, complain_overflow_bitfield, | |
114 | bfd_elf_generic_reloc, "R_386_GOTOFF", | |
115 | true, 0xffffffff, 0xffffffff, false), | |
116 | HOWTO(R_386_GOTPC, 0, 2, 32, true, 0, complain_overflow_bitfield, | |
117 | bfd_elf_generic_reloc, "R_386_GOTPC", | |
118 | true, 0xffffffff, 0xffffffff, true), | |
119 | ||
dc47f327 AM |
120 | /* We have a gap in the reloc numbers here. |
121 | R_386_standard counts the number up to this point, and | |
122 | R_386_ext_offset is the value to subtract from a reloc type of | |
123 | R_386_16 thru R_386_PC8 to form an index into this table. */ | |
1b452ec6 AM |
124 | #define R_386_standard ((unsigned int) R_386_GOTPC + 1) |
125 | #define R_386_ext_offset ((unsigned int) R_386_16 - R_386_standard) | |
126 | ||
252b5132 | 127 | /* The remaining relocs are a GNU extension. */ |
1b452ec6 AM |
128 | HOWTO(R_386_16, 0, 1, 16, false, 0, complain_overflow_bitfield, |
129 | bfd_elf_generic_reloc, "R_386_16", | |
130 | true, 0xffff, 0xffff, false), | |
131 | HOWTO(R_386_PC16, 0, 1, 16, true, 0, complain_overflow_bitfield, | |
132 | bfd_elf_generic_reloc, "R_386_PC16", | |
133 | true, 0xffff, 0xffff, true), | |
134 | HOWTO(R_386_8, 0, 0, 8, false, 0, complain_overflow_bitfield, | |
135 | bfd_elf_generic_reloc, "R_386_8", | |
136 | true, 0xff, 0xff, false), | |
137 | HOWTO(R_386_PC8, 0, 0, 8, true, 0, complain_overflow_signed, | |
138 | bfd_elf_generic_reloc, "R_386_PC8", | |
dc47f327 AM |
139 | true, 0xff, 0xff, true), |
140 | ||
141 | /* Another gap. */ | |
142 | #define R_386_ext ((unsigned int) R_386_PC8 + 1 - R_386_ext_offset) | |
143 | #define R_386_vt_offset ((unsigned int) R_386_GNU_VTINHERIT - R_386_ext) | |
252b5132 RH |
144 | |
145 | /* GNU extension to record C++ vtable hierarchy. */ | |
252b5132 RH |
146 | HOWTO (R_386_GNU_VTINHERIT, /* type */ |
147 | 0, /* rightshift */ | |
148 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
149 | 0, /* bitsize */ | |
150 | false, /* pc_relative */ | |
151 | 0, /* bitpos */ | |
152 | complain_overflow_dont, /* complain_on_overflow */ | |
153 | NULL, /* special_function */ | |
154 | "R_386_GNU_VTINHERIT", /* name */ | |
155 | false, /* partial_inplace */ | |
156 | 0, /* src_mask */ | |
157 | 0, /* dst_mask */ | |
dc47f327 | 158 | false), |
252b5132 RH |
159 | |
160 | /* GNU extension to record C++ vtable member usage. */ | |
252b5132 RH |
161 | HOWTO (R_386_GNU_VTENTRY, /* type */ |
162 | 0, /* rightshift */ | |
163 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
164 | 0, /* bitsize */ | |
165 | false, /* pc_relative */ | |
166 | 0, /* bitpos */ | |
167 | complain_overflow_dont, /* complain_on_overflow */ | |
168 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
169 | "R_386_GNU_VTENTRY", /* name */ | |
170 | false, /* partial_inplace */ | |
171 | 0, /* src_mask */ | |
172 | 0, /* dst_mask */ | |
dc47f327 AM |
173 | false) |
174 | ||
175 | #define R_386_vt ((unsigned int) R_386_GNU_VTENTRY + 1 - R_386_vt_offset) | |
176 | ||
177 | }; | |
178 | ||
252b5132 RH |
179 | #ifdef DEBUG_GEN_RELOC |
180 | #define TRACE(str) fprintf (stderr, "i386 bfd reloc lookup %d (%s)\n", code, str) | |
181 | #else | |
182 | #define TRACE(str) | |
183 | #endif | |
184 | ||
185 | static reloc_howto_type * | |
186 | elf_i386_reloc_type_lookup (abfd, code) | |
7442e600 | 187 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
188 | bfd_reloc_code_real_type code; |
189 | { | |
190 | switch (code) | |
191 | { | |
192 | case BFD_RELOC_NONE: | |
193 | TRACE ("BFD_RELOC_NONE"); | |
1b452ec6 | 194 | return &elf_howto_table[(unsigned int) R_386_NONE ]; |
252b5132 RH |
195 | |
196 | case BFD_RELOC_32: | |
197 | TRACE ("BFD_RELOC_32"); | |
1b452ec6 | 198 | return &elf_howto_table[(unsigned int) R_386_32 ]; |
252b5132 RH |
199 | |
200 | case BFD_RELOC_CTOR: | |
201 | TRACE ("BFD_RELOC_CTOR"); | |
1b452ec6 | 202 | return &elf_howto_table[(unsigned int) R_386_32 ]; |
252b5132 RH |
203 | |
204 | case BFD_RELOC_32_PCREL: | |
205 | TRACE ("BFD_RELOC_PC32"); | |
1b452ec6 | 206 | return &elf_howto_table[(unsigned int) R_386_PC32 ]; |
252b5132 RH |
207 | |
208 | case BFD_RELOC_386_GOT32: | |
209 | TRACE ("BFD_RELOC_386_GOT32"); | |
1b452ec6 | 210 | return &elf_howto_table[(unsigned int) R_386_GOT32 ]; |
252b5132 RH |
211 | |
212 | case BFD_RELOC_386_PLT32: | |
213 | TRACE ("BFD_RELOC_386_PLT32"); | |
1b452ec6 | 214 | return &elf_howto_table[(unsigned int) R_386_PLT32 ]; |
252b5132 RH |
215 | |
216 | case BFD_RELOC_386_COPY: | |
217 | TRACE ("BFD_RELOC_386_COPY"); | |
1b452ec6 | 218 | return &elf_howto_table[(unsigned int) R_386_COPY ]; |
252b5132 RH |
219 | |
220 | case BFD_RELOC_386_GLOB_DAT: | |
221 | TRACE ("BFD_RELOC_386_GLOB_DAT"); | |
1b452ec6 | 222 | return &elf_howto_table[(unsigned int) R_386_GLOB_DAT ]; |
252b5132 RH |
223 | |
224 | case BFD_RELOC_386_JUMP_SLOT: | |
225 | TRACE ("BFD_RELOC_386_JUMP_SLOT"); | |
1b452ec6 | 226 | return &elf_howto_table[(unsigned int) R_386_JUMP_SLOT ]; |
252b5132 RH |
227 | |
228 | case BFD_RELOC_386_RELATIVE: | |
229 | TRACE ("BFD_RELOC_386_RELATIVE"); | |
1b452ec6 | 230 | return &elf_howto_table[(unsigned int) R_386_RELATIVE ]; |
252b5132 RH |
231 | |
232 | case BFD_RELOC_386_GOTOFF: | |
233 | TRACE ("BFD_RELOC_386_GOTOFF"); | |
1b452ec6 | 234 | return &elf_howto_table[(unsigned int) R_386_GOTOFF ]; |
252b5132 RH |
235 | |
236 | case BFD_RELOC_386_GOTPC: | |
237 | TRACE ("BFD_RELOC_386_GOTPC"); | |
1b452ec6 | 238 | return &elf_howto_table[(unsigned int) R_386_GOTPC ]; |
252b5132 RH |
239 | |
240 | /* The remaining relocs are a GNU extension. */ | |
241 | case BFD_RELOC_16: | |
242 | TRACE ("BFD_RELOC_16"); | |
1b452ec6 | 243 | return &elf_howto_table[(unsigned int) R_386_16 - R_386_ext_offset]; |
252b5132 RH |
244 | |
245 | case BFD_RELOC_16_PCREL: | |
246 | TRACE ("BFD_RELOC_16_PCREL"); | |
1b452ec6 | 247 | return &elf_howto_table[(unsigned int) R_386_PC16 - R_386_ext_offset]; |
252b5132 RH |
248 | |
249 | case BFD_RELOC_8: | |
250 | TRACE ("BFD_RELOC_8"); | |
1b452ec6 | 251 | return &elf_howto_table[(unsigned int) R_386_8 - R_386_ext_offset]; |
252b5132 RH |
252 | |
253 | case BFD_RELOC_8_PCREL: | |
254 | TRACE ("BFD_RELOC_8_PCREL"); | |
1b452ec6 | 255 | return &elf_howto_table[(unsigned int) R_386_PC8 - R_386_ext_offset]; |
252b5132 RH |
256 | |
257 | case BFD_RELOC_VTABLE_INHERIT: | |
258 | TRACE ("BFD_RELOC_VTABLE_INHERIT"); | |
dc47f327 AM |
259 | return &elf_howto_table[(unsigned int) R_386_GNU_VTINHERIT |
260 | - R_386_vt_offset]; | |
252b5132 RH |
261 | |
262 | case BFD_RELOC_VTABLE_ENTRY: | |
263 | TRACE ("BFD_RELOC_VTABLE_ENTRY"); | |
dc47f327 AM |
264 | return &elf_howto_table[(unsigned int) R_386_GNU_VTENTRY |
265 | - R_386_vt_offset]; | |
252b5132 RH |
266 | |
267 | default: | |
268 | break; | |
269 | } | |
270 | ||
271 | TRACE ("Unknown"); | |
272 | return 0; | |
273 | } | |
274 | ||
275 | static void | |
276 | elf_i386_info_to_howto (abfd, cache_ptr, dst) | |
7442e600 ILT |
277 | bfd *abfd ATTRIBUTE_UNUSED; |
278 | arelent *cache_ptr ATTRIBUTE_UNUSED; | |
279 | Elf32_Internal_Rela *dst ATTRIBUTE_UNUSED; | |
252b5132 RH |
280 | { |
281 | abort (); | |
282 | } | |
283 | ||
284 | static void | |
285 | elf_i386_info_to_howto_rel (abfd, cache_ptr, dst) | |
7442e600 | 286 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
287 | arelent *cache_ptr; |
288 | Elf32_Internal_Rel *dst; | |
289 | { | |
dc47f327 AM |
290 | unsigned int r_type = ELF32_R_TYPE (dst->r_info); |
291 | unsigned int indx; | |
292 | ||
293 | if ((indx = r_type) >= R_386_standard | |
294 | && ((indx = r_type - R_386_ext_offset) - R_386_standard | |
295 | >= R_386_ext - R_386_standard) | |
296 | && ((indx = r_type - R_386_vt_offset) - R_386_ext | |
297 | >= R_386_vt - R_386_ext)) | |
252b5132 | 298 | { |
dc47f327 | 299 | (*_bfd_error_handler) (_("%s: invalid relocation type %d"), |
8f615d07 | 300 | bfd_archive_filename (abfd), (int) r_type); |
dc47f327 | 301 | indx = (unsigned int) R_386_NONE; |
252b5132 | 302 | } |
dc47f327 | 303 | cache_ptr->howto = &elf_howto_table[indx]; |
252b5132 RH |
304 | } |
305 | ||
306 | /* Return whether a symbol name implies a local label. The UnixWare | |
307 | 2.1 cc generates temporary symbols that start with .X, so we | |
308 | recognize them here. FIXME: do other SVR4 compilers also use .X?. | |
309 | If so, we should move the .X recognition into | |
310 | _bfd_elf_is_local_label_name. */ | |
311 | ||
312 | static boolean | |
313 | elf_i386_is_local_label_name (abfd, name) | |
314 | bfd *abfd; | |
315 | const char *name; | |
316 | { | |
317 | if (name[0] == '.' && name[1] == 'X') | |
318 | return true; | |
319 | ||
320 | return _bfd_elf_is_local_label_name (abfd, name); | |
321 | } | |
322 | \f | |
38701953 AM |
323 | /* Support for core dump NOTE sections. */ |
324 | static boolean | |
325 | elf_i386_grok_prstatus (abfd, note) | |
326 | bfd *abfd; | |
327 | Elf_Internal_Note *note; | |
328 | { | |
329 | int offset; | |
330 | size_t raw_size; | |
331 | ||
332 | switch (note->descsz) | |
333 | { | |
334 | default: | |
335 | return false; | |
336 | ||
337 | case 144: /* Linux/i386 */ | |
338 | /* pr_cursig */ | |
339 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
340 | ||
341 | /* pr_pid */ | |
342 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
343 | ||
344 | /* pr_reg */ | |
345 | offset = 72; | |
346 | raw_size = 68; | |
347 | ||
348 | break; | |
349 | } | |
350 | ||
351 | /* Make a ".reg/999" section. */ | |
352 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
353 | raw_size, note->descpos + offset); | |
354 | } | |
355 | ||
356 | static boolean | |
357 | elf_i386_grok_psinfo (abfd, note) | |
358 | bfd *abfd; | |
359 | Elf_Internal_Note *note; | |
360 | { | |
361 | switch (note->descsz) | |
362 | { | |
363 | default: | |
364 | return false; | |
365 | ||
366 | case 128: /* Linux/MIPS elf_prpsinfo */ | |
367 | elf_tdata (abfd)->core_program | |
368 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
369 | elf_tdata (abfd)->core_command | |
370 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
371 | } | |
372 | ||
373 | /* Note that for some reason, a spurious space is tacked | |
374 | onto the end of the args in some (at least one anyway) | |
375 | implementations, so strip it off if it exists. */ | |
376 | ||
377 | { | |
378 | char *command = elf_tdata (abfd)->core_command; | |
379 | int n = strlen (command); | |
380 | ||
381 | if (0 < n && command[n - 1] == ' ') | |
382 | command[n - 1] = '\0'; | |
383 | } | |
384 | ||
385 | return true; | |
386 | } | |
387 | \f | |
388 | /* Functions for the i386 ELF linker. | |
389 | ||
390 | In order to gain some understanding of code in this file without | |
391 | knowing all the intricate details of the linker, note the | |
392 | following: | |
393 | ||
394 | Functions named elf_i386_* are called by external routines, other | |
395 | functions are only called locally. elf_i386_* functions appear | |
396 | in this file more or less in the order in which they are called | |
397 | from external routines. eg. elf_i386_check_relocs is called | |
398 | early in the link process, elf_i386_finish_dynamic_sections is | |
399 | one of the last functions. */ | |
400 | ||
252b5132 RH |
401 | |
402 | /* The name of the dynamic interpreter. This is put in the .interp | |
403 | section. */ | |
404 | ||
405 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | |
406 | ||
407 | /* The size in bytes of an entry in the procedure linkage table. */ | |
408 | ||
409 | #define PLT_ENTRY_SIZE 16 | |
410 | ||
411 | /* The first entry in an absolute procedure linkage table looks like | |
412 | this. See the SVR4 ABI i386 supplement to see how this works. */ | |
413 | ||
414 | static const bfd_byte elf_i386_plt0_entry[PLT_ENTRY_SIZE] = | |
415 | { | |
416 | 0xff, 0x35, /* pushl contents of address */ | |
417 | 0, 0, 0, 0, /* replaced with address of .got + 4. */ | |
418 | 0xff, 0x25, /* jmp indirect */ | |
419 | 0, 0, 0, 0, /* replaced with address of .got + 8. */ | |
420 | 0, 0, 0, 0 /* pad out to 16 bytes. */ | |
421 | }; | |
422 | ||
423 | /* Subsequent entries in an absolute procedure linkage table look like | |
424 | this. */ | |
425 | ||
426 | static const bfd_byte elf_i386_plt_entry[PLT_ENTRY_SIZE] = | |
427 | { | |
428 | 0xff, 0x25, /* jmp indirect */ | |
429 | 0, 0, 0, 0, /* replaced with address of this symbol in .got. */ | |
430 | 0x68, /* pushl immediate */ | |
431 | 0, 0, 0, 0, /* replaced with offset into relocation table. */ | |
432 | 0xe9, /* jmp relative */ | |
433 | 0, 0, 0, 0 /* replaced with offset to start of .plt. */ | |
434 | }; | |
435 | ||
436 | /* The first entry in a PIC procedure linkage table look like this. */ | |
437 | ||
438 | static const bfd_byte elf_i386_pic_plt0_entry[PLT_ENTRY_SIZE] = | |
439 | { | |
440 | 0xff, 0xb3, 4, 0, 0, 0, /* pushl 4(%ebx) */ | |
441 | 0xff, 0xa3, 8, 0, 0, 0, /* jmp *8(%ebx) */ | |
442 | 0, 0, 0, 0 /* pad out to 16 bytes. */ | |
443 | }; | |
444 | ||
445 | /* Subsequent entries in a PIC procedure linkage table look like this. */ | |
446 | ||
447 | static const bfd_byte elf_i386_pic_plt_entry[PLT_ENTRY_SIZE] = | |
448 | { | |
449 | 0xff, 0xa3, /* jmp *offset(%ebx) */ | |
450 | 0, 0, 0, 0, /* replaced with offset of this symbol in .got. */ | |
451 | 0x68, /* pushl immediate */ | |
452 | 0, 0, 0, 0, /* replaced with offset into relocation table. */ | |
453 | 0xe9, /* jmp relative */ | |
454 | 0, 0, 0, 0 /* replaced with offset to start of .plt. */ | |
455 | }; | |
456 | ||
457 | /* The i386 linker needs to keep track of the number of relocs that it | |
ffb2e45b AM |
458 | decides to copy as dynamic relocs in check_relocs for each symbol. |
459 | This is so that it can later discard them if they are found to be | |
460 | unnecessary. We store the information in a field extending the | |
461 | regular ELF linker hash table. */ | |
252b5132 | 462 | |
ffb2e45b | 463 | struct elf_i386_dyn_relocs |
252b5132 | 464 | { |
ffb2e45b | 465 | struct elf_i386_dyn_relocs *next; |
0c715baa AM |
466 | |
467 | /* The input section of the reloc. */ | |
468 | asection *sec; | |
469 | ||
470 | /* Total number of relocs copied for the input section. */ | |
252b5132 | 471 | bfd_size_type count; |
0c715baa AM |
472 | |
473 | /* Number of pc-relative relocs copied for the input section. */ | |
474 | bfd_size_type pc_count; | |
252b5132 RH |
475 | }; |
476 | ||
477 | /* i386 ELF linker hash entry. */ | |
478 | ||
479 | struct elf_i386_link_hash_entry | |
480 | { | |
ebe50bae | 481 | struct elf_link_hash_entry elf; |
252b5132 | 482 | |
0c715baa | 483 | /* Track dynamic relocs copied for this symbol. */ |
ffb2e45b | 484 | struct elf_i386_dyn_relocs *dyn_relocs; |
252b5132 RH |
485 | }; |
486 | ||
487 | /* i386 ELF linker hash table. */ | |
488 | ||
489 | struct elf_i386_link_hash_table | |
490 | { | |
ebe50bae | 491 | struct elf_link_hash_table elf; |
252b5132 | 492 | |
6725bdbf AM |
493 | /* Short-cuts to get to dynamic linker sections. */ |
494 | asection *sgot; | |
495 | asection *sgotplt; | |
496 | asection *srelgot; | |
497 | asection *splt; | |
498 | asection *srelplt; | |
499 | asection *sdynbss; | |
500 | asection *srelbss; | |
501 | }; | |
252b5132 RH |
502 | |
503 | /* Get the i386 ELF linker hash table from a link_info structure. */ | |
504 | ||
505 | #define elf_i386_hash_table(p) \ | |
506 | ((struct elf_i386_link_hash_table *) ((p)->hash)) | |
507 | ||
508 | /* Create an entry in an i386 ELF linker hash table. */ | |
509 | ||
510 | static struct bfd_hash_entry * | |
38701953 | 511 | link_hash_newfunc (entry, table, string) |
252b5132 RH |
512 | struct bfd_hash_entry *entry; |
513 | struct bfd_hash_table *table; | |
514 | const char *string; | |
515 | { | |
252b5132 RH |
516 | /* Allocate the structure if it has not already been allocated by a |
517 | subclass. */ | |
ebe50bae AM |
518 | if (entry == NULL) |
519 | { | |
520 | entry = bfd_hash_allocate (table, | |
521 | sizeof (struct elf_i386_link_hash_entry)); | |
522 | if (entry == NULL) | |
523 | return entry; | |
524 | } | |
252b5132 RH |
525 | |
526 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
527 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
528 | if (entry != NULL) | |
252b5132 | 529 | { |
ebe50bae AM |
530 | struct elf_i386_link_hash_entry *eh; |
531 | ||
532 | eh = (struct elf_i386_link_hash_entry *) entry; | |
533 | eh->dyn_relocs = NULL; | |
252b5132 RH |
534 | } |
535 | ||
ebe50bae | 536 | return entry; |
252b5132 RH |
537 | } |
538 | ||
539 | /* Create an i386 ELF linker hash table. */ | |
540 | ||
541 | static struct bfd_link_hash_table * | |
542 | elf_i386_link_hash_table_create (abfd) | |
543 | bfd *abfd; | |
544 | { | |
545 | struct elf_i386_link_hash_table *ret; | |
dc810e39 | 546 | bfd_size_type amt = sizeof (struct elf_i386_link_hash_table); |
252b5132 | 547 | |
dc810e39 | 548 | ret = (struct elf_i386_link_hash_table *) bfd_alloc (abfd, amt); |
ebe50bae | 549 | if (ret == NULL) |
252b5132 RH |
550 | return NULL; |
551 | ||
ebe50bae | 552 | if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc)) |
252b5132 RH |
553 | { |
554 | bfd_release (abfd, ret); | |
555 | return NULL; | |
556 | } | |
557 | ||
6725bdbf AM |
558 | ret->sgot = NULL; |
559 | ret->sgotplt = NULL; | |
560 | ret->srelgot = NULL; | |
561 | ret->splt = NULL; | |
562 | ret->srelplt = NULL; | |
563 | ret->sdynbss = NULL; | |
564 | ret->srelbss = NULL; | |
565 | ||
ebe50bae | 566 | return &ret->elf.root; |
252b5132 RH |
567 | } |
568 | ||
6725bdbf AM |
569 | /* Create .got, .gotplt, and .rel.got sections in DYNOBJ, and set up |
570 | shortcuts to them in our hash table. */ | |
571 | ||
572 | static boolean | |
573 | create_got_section (dynobj, info) | |
574 | bfd *dynobj; | |
575 | struct bfd_link_info *info; | |
576 | { | |
577 | struct elf_i386_link_hash_table *htab; | |
578 | ||
579 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
580 | return false; | |
581 | ||
582 | htab = elf_i386_hash_table (info); | |
583 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
584 | htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
585 | if (!htab->sgot || !htab->sgotplt) | |
586 | abort (); | |
587 | ||
588 | htab->srelgot = bfd_make_section (dynobj, ".rel.got"); | |
589 | if (htab->srelgot == NULL | |
590 | || ! bfd_set_section_flags (dynobj, htab->srelgot, | |
591 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
592 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
593 | | SEC_READONLY)) | |
594 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) | |
595 | return false; | |
596 | return true; | |
597 | } | |
598 | ||
599 | /* Create .plt, .rel.plt, .got, .got.plt, .rel.got, .dynbss, and | |
600 | .rel.bss sections in DYNOBJ, and set up shortcuts to them in our | |
601 | hash table. */ | |
602 | ||
603 | static boolean | |
604 | elf_i386_create_dynamic_sections (dynobj, info) | |
605 | bfd *dynobj; | |
606 | struct bfd_link_info *info; | |
607 | { | |
608 | struct elf_i386_link_hash_table *htab; | |
609 | ||
610 | htab = elf_i386_hash_table (info); | |
611 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
612 | return false; | |
613 | ||
614 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
615 | return false; | |
616 | ||
617 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
618 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rel.plt"); | |
619 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
620 | if (!info->shared) | |
621 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rel.bss"); | |
622 | ||
623 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
624 | || (!info->shared && !htab->srelbss)) | |
625 | abort (); | |
626 | ||
627 | return true; | |
628 | } | |
629 | ||
ebe50bae AM |
630 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
631 | ||
632 | void | |
633 | elf_i386_copy_indirect_symbol (dir, ind) | |
634 | struct elf_link_hash_entry *dir, *ind; | |
635 | { | |
636 | struct elf_i386_link_hash_entry *edir, *eind; | |
637 | ||
638 | edir = (struct elf_i386_link_hash_entry *) dir; | |
639 | eind = (struct elf_i386_link_hash_entry *) ind; | |
640 | ||
641 | if (edir->dyn_relocs == NULL) | |
642 | { | |
643 | edir->dyn_relocs = eind->dyn_relocs; | |
644 | eind->dyn_relocs = NULL; | |
645 | } | |
646 | else if (eind->dyn_relocs != NULL) | |
647 | abort (); | |
648 | ||
649 | _bfd_elf_link_hash_copy_indirect (dir, ind); | |
650 | } | |
651 | ||
252b5132 RH |
652 | /* Look through the relocs for a section during the first phase, and |
653 | allocate space in the global offset table or procedure linkage | |
654 | table. */ | |
655 | ||
656 | static boolean | |
657 | elf_i386_check_relocs (abfd, info, sec, relocs) | |
658 | bfd *abfd; | |
659 | struct bfd_link_info *info; | |
660 | asection *sec; | |
661 | const Elf_Internal_Rela *relocs; | |
662 | { | |
6725bdbf | 663 | struct elf_i386_link_hash_table *htab; |
252b5132 RH |
664 | bfd *dynobj; |
665 | Elf_Internal_Shdr *symtab_hdr; | |
666 | struct elf_link_hash_entry **sym_hashes; | |
dd5724d5 | 667 | bfd_signed_vma *local_got_refcounts; |
252b5132 RH |
668 | const Elf_Internal_Rela *rel; |
669 | const Elf_Internal_Rela *rel_end; | |
252b5132 RH |
670 | asection *sreloc; |
671 | ||
672 | if (info->relocateable) | |
673 | return true; | |
674 | ||
6725bdbf | 675 | htab = elf_i386_hash_table (info); |
ebe50bae | 676 | dynobj = htab->elf.dynobj; |
252b5132 RH |
677 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
678 | sym_hashes = elf_sym_hashes (abfd); | |
dd5724d5 | 679 | local_got_refcounts = elf_local_got_refcounts (abfd); |
252b5132 | 680 | |
252b5132 RH |
681 | sreloc = NULL; |
682 | ||
683 | rel_end = relocs + sec->reloc_count; | |
684 | for (rel = relocs; rel < rel_end; rel++) | |
685 | { | |
686 | unsigned long r_symndx; | |
687 | struct elf_link_hash_entry *h; | |
688 | ||
689 | r_symndx = ELF32_R_SYM (rel->r_info); | |
690 | ||
d9bc7a44 | 691 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) |
f5f31454 | 692 | { |
8f615d07 AM |
693 | (*_bfd_error_handler) (_("%s: bad symbol index: %d"), |
694 | bfd_archive_filename (abfd), | |
695 | r_symndx); | |
f5f31454 L |
696 | return false; |
697 | } | |
698 | ||
252b5132 RH |
699 | if (r_symndx < symtab_hdr->sh_info) |
700 | h = NULL; | |
701 | else | |
702 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
703 | ||
704 | /* Some relocs require a global offset table. */ | |
12d0ee4a | 705 | if (htab->sgot == NULL) |
252b5132 RH |
706 | { |
707 | switch (ELF32_R_TYPE (rel->r_info)) | |
708 | { | |
709 | case R_386_GOT32: | |
710 | case R_386_GOTOFF: | |
711 | case R_386_GOTPC: | |
12d0ee4a | 712 | if (dynobj == NULL) |
ebe50bae | 713 | htab->elf.dynobj = dynobj = abfd; |
6725bdbf | 714 | if (!create_got_section (dynobj, info)) |
252b5132 RH |
715 | return false; |
716 | break; | |
717 | ||
718 | default: | |
719 | break; | |
720 | } | |
721 | } | |
722 | ||
723 | switch (ELF32_R_TYPE (rel->r_info)) | |
724 | { | |
725 | case R_386_GOT32: | |
726 | /* This symbol requires a global offset table entry. */ | |
252b5132 RH |
727 | if (h != NULL) |
728 | { | |
dd5724d5 | 729 | if (h->got.refcount == -1) |
5a15f56f | 730 | h->got.refcount = 1; |
dd5724d5 AM |
731 | else |
732 | h->got.refcount += 1; | |
252b5132 RH |
733 | } |
734 | else | |
735 | { | |
83be169b | 736 | /* This is a global offset table entry for a local symbol. */ |
dd5724d5 | 737 | if (local_got_refcounts == NULL) |
252b5132 | 738 | { |
dc810e39 | 739 | bfd_size_type size; |
252b5132 | 740 | |
dc810e39 AM |
741 | size = symtab_hdr->sh_info; |
742 | size *= sizeof (bfd_signed_vma); | |
dd5724d5 | 743 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 744 | bfd_zalloc (abfd, size)); |
dd5724d5 | 745 | if (local_got_refcounts == NULL) |
252b5132 | 746 | return false; |
dd5724d5 | 747 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
252b5132 | 748 | } |
ebe50bae | 749 | local_got_refcounts[r_symndx] += 1; |
252b5132 | 750 | } |
252b5132 RH |
751 | break; |
752 | ||
753 | case R_386_PLT32: | |
754 | /* This symbol requires a procedure linkage table entry. We | |
83be169b AM |
755 | actually build the entry in adjust_dynamic_symbol, |
756 | because this might be a case of linking PIC code which is | |
757 | never referenced by a dynamic object, in which case we | |
758 | don't need to generate a procedure linkage table entry | |
759 | after all. */ | |
252b5132 RH |
760 | |
761 | /* If this is a local symbol, we resolve it directly without | |
83be169b | 762 | creating a procedure linkage table entry. */ |
252b5132 RH |
763 | if (h == NULL) |
764 | continue; | |
765 | ||
dd5724d5 AM |
766 | if (h->plt.refcount == -1) |
767 | { | |
dd5724d5 | 768 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
6725bdbf | 769 | h->plt.refcount = 1; |
dd5724d5 AM |
770 | } |
771 | else | |
772 | h->plt.refcount += 1; | |
252b5132 RH |
773 | break; |
774 | ||
775 | case R_386_32: | |
776 | case R_386_PC32: | |
12d0ee4a | 777 | if (h != NULL && !info->shared) |
6725bdbf | 778 | { |
12d0ee4a | 779 | /* If this reloc is in a read-only section, we might |
ebe50bae AM |
780 | need a copy reloc. We can't check reliably at this |
781 | stage whether the section is read-only, as input | |
782 | sections have not yet been mapped to output sections. | |
783 | Tentatively set the flag for now, and correct in | |
784 | adjust_dynamic_symbol. */ | |
785 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
12d0ee4a AM |
786 | |
787 | /* We may need a .plt entry if the function this reloc | |
788 | refers to is in a shared lib. */ | |
789 | if (h->plt.refcount == -1) | |
790 | h->plt.refcount = 1; | |
791 | else | |
792 | h->plt.refcount += 1; | |
6725bdbf | 793 | } |
7843f00e | 794 | |
252b5132 | 795 | /* If we are creating a shared library, and this is a reloc |
f69da49f AM |
796 | against a global symbol, or a non PC relative reloc |
797 | against a local symbol, then we need to copy the reloc | |
798 | into the shared library. However, if we are linking with | |
799 | -Bsymbolic, we do not need to copy a reloc against a | |
800 | global symbol which is defined in an object we are | |
801 | including in the link (i.e., DEF_REGULAR is set). At | |
802 | this point we have not seen all the input files, so it is | |
803 | possible that DEF_REGULAR is not set now but will be set | |
1f655a09 L |
804 | later (it is never cleared). In case of a weak definition, |
805 | DEF_REGULAR may be cleared later by a strong definition in | |
ebe50bae | 806 | a shared library. We account for that possibility below by |
1f655a09 L |
807 | storing information in the relocs_copied field of the hash |
808 | table entry. A similar situation occurs when creating | |
809 | shared libraries and symbol visibility changes render the | |
12d0ee4a | 810 | symbol local. |
56882138 | 811 | |
12d0ee4a AM |
812 | If on the other hand, we are creating an executable, we |
813 | may need to keep relocations for symbols satisfied by a | |
814 | dynamic library if we manage to avoid copy relocs for the | |
815 | symbol. */ | |
816 | if ((info->shared | |
817 | && (sec->flags & SEC_ALLOC) != 0 | |
818 | && (ELF32_R_TYPE (rel->r_info) != R_386_PC32 | |
819 | || (h != NULL | |
820 | && (! info->symbolic | |
821 | || h->root.type == bfd_link_hash_defweak | |
822 | || (h->elf_link_hash_flags | |
823 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
824 | || (!info->shared | |
825 | && (sec->flags & SEC_ALLOC) != 0 | |
826 | && h != NULL | |
12d0ee4a AM |
827 | && (h->root.type == bfd_link_hash_defweak |
828 | || (h->elf_link_hash_flags | |
829 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
252b5132 | 830 | { |
12d0ee4a AM |
831 | /* We must copy these reloc types into the output file. |
832 | Create a reloc section in dynobj and make room for | |
833 | this reloc. */ | |
834 | if (dynobj == NULL) | |
ebe50bae | 835 | htab->elf.dynobj = dynobj = abfd; |
28d0b90e | 836 | |
252b5132 RH |
837 | if (sreloc == NULL) |
838 | { | |
839 | const char *name; | |
840 | ||
841 | name = (bfd_elf_string_from_elf_section | |
842 | (abfd, | |
843 | elf_elfheader (abfd)->e_shstrndx, | |
844 | elf_section_data (sec)->rel_hdr.sh_name)); | |
845 | if (name == NULL) | |
846 | return false; | |
847 | ||
c8492176 L |
848 | if (strncmp (name, ".rel", 4) != 0 |
849 | || strcmp (bfd_get_section_name (abfd, sec), | |
850 | name + 4) != 0) | |
851 | { | |
0c715baa AM |
852 | (*_bfd_error_handler) |
853 | (_("%s: bad relocation section name `%s\'"), | |
854 | bfd_archive_filename (abfd), name); | |
f5f31454 | 855 | } |
252b5132 RH |
856 | |
857 | sreloc = bfd_get_section_by_name (dynobj, name); | |
858 | if (sreloc == NULL) | |
859 | { | |
860 | flagword flags; | |
861 | ||
862 | sreloc = bfd_make_section (dynobj, name); | |
863 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
864 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
865 | if ((sec->flags & SEC_ALLOC) != 0) | |
866 | flags |= SEC_ALLOC | SEC_LOAD; | |
867 | if (sreloc == NULL | |
868 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
869 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) | |
870 | return false; | |
871 | } | |
0c715baa | 872 | elf_section_data (sec)->sreloc = sreloc; |
252b5132 RH |
873 | } |
874 | ||
0c715baa AM |
875 | /* If this is a global symbol, we count the number of |
876 | relocations we need for this symbol. */ | |
877 | if (h != NULL) | |
252b5132 RH |
878 | { |
879 | struct elf_i386_link_hash_entry *eh; | |
ffb2e45b | 880 | struct elf_i386_dyn_relocs *p; |
252b5132 RH |
881 | |
882 | eh = (struct elf_i386_link_hash_entry *) h; | |
0c715baa | 883 | p = eh->dyn_relocs; |
252b5132 | 884 | |
0c715baa | 885 | if (p == NULL || p->sec != sec) |
252b5132 | 886 | { |
ffb2e45b | 887 | p = ((struct elf_i386_dyn_relocs *) |
dc810e39 | 888 | bfd_alloc (dynobj, (bfd_size_type) sizeof *p)); |
252b5132 RH |
889 | if (p == NULL) |
890 | return false; | |
ffb2e45b AM |
891 | p->next = eh->dyn_relocs; |
892 | eh->dyn_relocs = p; | |
0c715baa | 893 | p->sec = sec; |
252b5132 | 894 | p->count = 0; |
0c715baa | 895 | p->pc_count = 0; |
252b5132 RH |
896 | } |
897 | ||
0c715baa AM |
898 | p->count += 1; |
899 | if (ELF32_R_TYPE (rel->r_info) == R_386_PC32) | |
900 | p->pc_count += 1; | |
901 | } | |
902 | else | |
903 | { | |
904 | /* Track dynamic relocs needed for local syms too. */ | |
905 | elf_section_data (sec)->local_dynrel += 1; | |
252b5132 RH |
906 | } |
907 | } | |
908 | ||
909 | break; | |
910 | ||
911 | /* This relocation describes the C++ object vtable hierarchy. | |
912 | Reconstruct it for later use during GC. */ | |
913 | case R_386_GNU_VTINHERIT: | |
914 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
915 | return false; | |
916 | break; | |
917 | ||
918 | /* This relocation describes which C++ vtable entries are actually | |
919 | used. Record for later use during GC. */ | |
920 | case R_386_GNU_VTENTRY: | |
921 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_offset)) | |
922 | return false; | |
923 | break; | |
924 | ||
925 | default: | |
926 | break; | |
927 | } | |
928 | } | |
929 | ||
930 | return true; | |
931 | } | |
932 | ||
933 | /* Return the section that should be marked against GC for a given | |
934 | relocation. */ | |
935 | ||
936 | static asection * | |
937 | elf_i386_gc_mark_hook (abfd, info, rel, h, sym) | |
938 | bfd *abfd; | |
7442e600 | 939 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
940 | Elf_Internal_Rela *rel; |
941 | struct elf_link_hash_entry *h; | |
942 | Elf_Internal_Sym *sym; | |
943 | { | |
944 | if (h != NULL) | |
945 | { | |
946 | switch (ELF32_R_TYPE (rel->r_info)) | |
947 | { | |
948 | case R_386_GNU_VTINHERIT: | |
949 | case R_386_GNU_VTENTRY: | |
950 | break; | |
951 | ||
952 | default: | |
953 | switch (h->root.type) | |
954 | { | |
955 | case bfd_link_hash_defined: | |
956 | case bfd_link_hash_defweak: | |
957 | return h->root.u.def.section; | |
958 | ||
959 | case bfd_link_hash_common: | |
960 | return h->root.u.c.p->section; | |
961 | ||
962 | default: | |
963 | break; | |
964 | } | |
965 | } | |
966 | } | |
967 | else | |
968 | { | |
969 | if (!(elf_bad_symtab (abfd) | |
970 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
971 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
972 | && sym->st_shndx != SHN_COMMON)) | |
973 | { | |
974 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
975 | } | |
976 | } | |
977 | ||
978 | return NULL; | |
979 | } | |
980 | ||
981 | /* Update the got entry reference counts for the section being removed. */ | |
982 | ||
983 | static boolean | |
984 | elf_i386_gc_sweep_hook (abfd, info, sec, relocs) | |
dd5724d5 | 985 | bfd *abfd; |
6725bdbf | 986 | struct bfd_link_info *info; |
dd5724d5 AM |
987 | asection *sec; |
988 | const Elf_Internal_Rela *relocs; | |
252b5132 | 989 | { |
dd5724d5 AM |
990 | Elf_Internal_Shdr *symtab_hdr; |
991 | struct elf_link_hash_entry **sym_hashes; | |
992 | bfd_signed_vma *local_got_refcounts; | |
993 | const Elf_Internal_Rela *rel, *relend; | |
994 | unsigned long r_symndx; | |
995 | struct elf_link_hash_entry *h; | |
996 | bfd *dynobj; | |
dd5724d5 | 997 | |
0c715baa AM |
998 | elf_section_data (sec)->local_dynrel = 0; |
999 | ||
dd5724d5 AM |
1000 | dynobj = elf_hash_table (info)->dynobj; |
1001 | if (dynobj == NULL) | |
1002 | return true; | |
1003 | ||
6725bdbf AM |
1004 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1005 | sym_hashes = elf_sym_hashes (abfd); | |
1006 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
dd5724d5 AM |
1007 | |
1008 | relend = relocs + sec->reloc_count; | |
1009 | for (rel = relocs; rel < relend; rel++) | |
1010 | switch (ELF32_R_TYPE (rel->r_info)) | |
1011 | { | |
1012 | case R_386_GOT32: | |
1013 | case R_386_GOTOFF: | |
1014 | case R_386_GOTPC: | |
1015 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1016 | if (r_symndx >= symtab_hdr->sh_info) | |
1017 | { | |
1018 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1019 | if (h->got.refcount > 0) | |
6725bdbf | 1020 | h->got.refcount -= 1; |
dd5724d5 AM |
1021 | } |
1022 | else if (local_got_refcounts != NULL) | |
1023 | { | |
1024 | if (local_got_refcounts[r_symndx] > 0) | |
6725bdbf | 1025 | local_got_refcounts[r_symndx] -= 1; |
dd5724d5 AM |
1026 | } |
1027 | break; | |
1028 | ||
6725bdbf AM |
1029 | case R_386_32: |
1030 | case R_386_PC32: | |
0c715baa AM |
1031 | r_symndx = ELF32_R_SYM (rel->r_info); |
1032 | if (r_symndx >= symtab_hdr->sh_info) | |
1033 | { | |
1034 | struct elf_i386_link_hash_entry *eh; | |
1035 | struct elf_i386_dyn_relocs **pp; | |
1036 | struct elf_i386_dyn_relocs *p; | |
1037 | ||
1038 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1039 | ||
1040 | if (!info->shared && h->plt.refcount > 0) | |
1041 | h->plt.refcount -= 1; | |
1042 | ||
1043 | eh = (struct elf_i386_link_hash_entry *) h; | |
1044 | ||
1045 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1046 | if (p->sec == sec) | |
1047 | { | |
1048 | if (ELF32_R_TYPE (rel->r_info) == R_386_PC32) | |
1049 | p->pc_count -= 1; | |
1050 | p->count -= 1; | |
1051 | if (p->count == 0) | |
1052 | *pp = p->next; | |
1053 | break; | |
1054 | } | |
1055 | } | |
1056 | break; | |
6725bdbf | 1057 | |
dd5724d5 AM |
1058 | case R_386_PLT32: |
1059 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1060 | if (r_symndx >= symtab_hdr->sh_info) | |
1061 | { | |
1062 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1063 | if (h->plt.refcount > 0) | |
1064 | h->plt.refcount -= 1; | |
1065 | } | |
1066 | break; | |
1067 | ||
1068 | default: | |
1069 | break; | |
1070 | } | |
252b5132 RH |
1071 | |
1072 | return true; | |
1073 | } | |
1074 | ||
1075 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1076 | regular object. The current definition is in some section of the | |
1077 | dynamic object, but we're not including those sections. We have to | |
1078 | change the definition to something the rest of the link can | |
1079 | understand. */ | |
1080 | ||
1081 | static boolean | |
1082 | elf_i386_adjust_dynamic_symbol (info, h) | |
1083 | struct bfd_link_info *info; | |
1084 | struct elf_link_hash_entry *h; | |
1085 | { | |
6725bdbf | 1086 | struct elf_i386_link_hash_table *htab; |
252b5132 | 1087 | bfd *dynobj; |
ebe50bae AM |
1088 | struct elf_i386_link_hash_entry * eh; |
1089 | struct elf_i386_dyn_relocs *p; | |
252b5132 RH |
1090 | asection *s; |
1091 | unsigned int power_of_two; | |
1092 | ||
6725bdbf | 1093 | htab = elf_i386_hash_table (info); |
ebe50bae | 1094 | dynobj = htab->elf.dynobj; |
252b5132 | 1095 | |
252b5132 RH |
1096 | /* If this is a function, put it in the procedure linkage table. We |
1097 | will fill in the contents of the procedure linkage table later, | |
1098 | when we know the address of the .got section. */ | |
1099 | if (h->type == STT_FUNC | |
1100 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1101 | { | |
6725bdbf AM |
1102 | if (h->plt.refcount <= 0 |
1103 | || (! info->shared | |
1104 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 | |
1105 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0)) | |
252b5132 RH |
1106 | { |
1107 | /* This case can occur if we saw a PLT32 reloc in an input | |
dd5724d5 AM |
1108 | file, but the symbol was never referred to by a dynamic |
1109 | object, or if all references were garbage collected. In | |
1110 | such a case, we don't actually need to build a procedure | |
1111 | linkage table, and we can just do a PC32 reloc instead. */ | |
6725bdbf | 1112 | h->plt.refcount = (bfd_vma) -1; |
dd5724d5 | 1113 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
252b5132 RH |
1114 | } |
1115 | ||
252b5132 RH |
1116 | return true; |
1117 | } | |
6725bdbf AM |
1118 | else |
1119 | /* It's possible that we incorrectly decided a .plt reloc was | |
1120 | needed for an R_386_PC32 reloc to a non-function sym in | |
1121 | check_relocs. We can't decide accurately between function and | |
1122 | non-function syms in check-relocs; Objects loaded later in | |
1123 | the link may change h->type. So fix it now. */ | |
1124 | h->plt.refcount = (bfd_vma) -1; | |
252b5132 RH |
1125 | |
1126 | /* If this is a weak symbol, and there is a real definition, the | |
1127 | processor independent code will have arranged for us to see the | |
1128 | real definition first, and we can just use the same value. */ | |
1129 | if (h->weakdef != NULL) | |
1130 | { | |
1131 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
1132 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
1133 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
1134 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
252b5132 RH |
1135 | } |
1136 | ||
1137 | /* This is a reference to a symbol defined by a dynamic object which | |
1138 | is not a function. */ | |
1139 | ||
1140 | /* If we are creating a shared library, we must presume that the | |
1141 | only references to the symbol are via the global offset table. | |
1142 | For such cases we need not do anything here; the relocations will | |
1143 | be handled correctly by relocate_section. */ | |
1144 | if (info->shared) | |
1145 | return true; | |
1146 | ||
7843f00e ILT |
1147 | /* If there are no references to this symbol that do not use the |
1148 | GOT, we don't need to generate a copy reloc. */ | |
1149 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1150 | return true; | |
1151 | ||
ebe50bae AM |
1152 | eh = (struct elf_i386_link_hash_entry *) h; |
1153 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1154 | { | |
1155 | s = p->sec->output_section; | |
1156 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1157 | break; | |
1158 | } | |
1159 | ||
1160 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1161 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1162 | if (p == NULL) | |
1163 | { | |
1164 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1165 | return true; | |
1166 | } | |
1167 | ||
252b5132 RH |
1168 | /* We must allocate the symbol in our .dynbss section, which will |
1169 | become part of the .bss section of the executable. There will be | |
1170 | an entry for this symbol in the .dynsym section. The dynamic | |
1171 | object will contain position independent code, so all references | |
1172 | from the dynamic object to this symbol will go through the global | |
1173 | offset table. The dynamic linker will use the .dynsym entry to | |
1174 | determine the address it must put in the global offset table, so | |
1175 | both the dynamic object and the regular object will refer to the | |
1176 | same memory location for the variable. */ | |
1177 | ||
6725bdbf | 1178 | s = htab->sdynbss; |
ffb2e45b AM |
1179 | if (s == NULL) |
1180 | abort (); | |
252b5132 RH |
1181 | |
1182 | /* We must generate a R_386_COPY reloc to tell the dynamic linker to | |
1183 | copy the initial value out of the dynamic object and into the | |
1184 | runtime process image. We need to remember the offset into the | |
1185 | .rel.bss section we are going to use. */ | |
1186 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1187 | { | |
1188 | asection *srel; | |
1189 | ||
6725bdbf | 1190 | srel = htab->srelbss; |
ffb2e45b AM |
1191 | if (srel == NULL) |
1192 | abort (); | |
252b5132 RH |
1193 | srel->_raw_size += sizeof (Elf32_External_Rel); |
1194 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
1195 | } | |
1196 | ||
1197 | /* We need to figure out the alignment required for this symbol. I | |
1198 | have no idea how ELF linkers handle this. */ | |
1199 | power_of_two = bfd_log2 (h->size); | |
1200 | if (power_of_two > 3) | |
1201 | power_of_two = 3; | |
1202 | ||
1203 | /* Apply the required alignment. */ | |
1204 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1205 | (bfd_size_type) (1 << power_of_two)); | |
1206 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
1207 | { | |
1208 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
1209 | return false; | |
1210 | } | |
1211 | ||
1212 | /* Define the symbol as being at this point in the section. */ | |
1213 | h->root.u.def.section = s; | |
1214 | h->root.u.def.value = s->_raw_size; | |
1215 | ||
1216 | /* Increment the section size to make room for the symbol. */ | |
1217 | s->_raw_size += h->size; | |
1218 | ||
1219 | return true; | |
1220 | } | |
1221 | ||
6725bdbf AM |
1222 | /* This is the condition under which elf_i386_finish_dynamic_symbol |
1223 | will be called from elflink.h. If elflink.h doesn't call our | |
1224 | finish_dynamic_symbol routine, we'll need to do something about | |
1225 | initializing any .plt and .got entries in elf_i386_relocate_section. */ | |
1226 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1227 | ((DYN) \ | |
1228 | && ((INFO)->shared \ | |
1229 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1230 | && ((H)->dynindx != -1 \ | |
1231 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1232 | ||
1233 | /* Allocate space in .plt, .got and associated reloc sections for | |
0c715baa | 1234 | dynamic relocs. */ |
6725bdbf AM |
1235 | |
1236 | static boolean | |
0c715baa | 1237 | allocate_dynrelocs (h, inf) |
6725bdbf AM |
1238 | struct elf_link_hash_entry *h; |
1239 | PTR inf; | |
1240 | { | |
1241 | struct bfd_link_info *info; | |
1242 | struct elf_i386_link_hash_table *htab; | |
1243 | asection *s; | |
5a15f56f | 1244 | struct elf_i386_link_hash_entry *eh; |
0c715baa | 1245 | struct elf_i386_dyn_relocs *p; |
6725bdbf AM |
1246 | |
1247 | if (h->root.type == bfd_link_hash_indirect | |
1248 | || h->root.type == bfd_link_hash_warning) | |
1249 | return true; | |
1250 | ||
1251 | info = (struct bfd_link_info *) inf; | |
1252 | htab = elf_i386_hash_table (info); | |
1253 | ||
ebe50bae | 1254 | if (htab->elf.dynamic_sections_created |
6725bdbf AM |
1255 | && h->plt.refcount > 0) |
1256 | { | |
5a15f56f AM |
1257 | /* Make sure this symbol is output as a dynamic symbol. |
1258 | Undefined weak syms won't yet be marked as dynamic. */ | |
1259 | if (h->dynindx == -1 | |
1260 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1261 | { | |
1262 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
1263 | return false; | |
1264 | } | |
1265 | ||
6725bdbf | 1266 | s = htab->splt; |
ffb2e45b AM |
1267 | if (s == NULL) |
1268 | abort (); | |
6725bdbf AM |
1269 | |
1270 | /* If this is the first .plt entry, make room for the special | |
1271 | first entry. */ | |
1272 | if (s->_raw_size == 0) | |
1273 | s->_raw_size += PLT_ENTRY_SIZE; | |
1274 | ||
1275 | h->plt.offset = s->_raw_size; | |
1276 | ||
1277 | /* If this symbol is not defined in a regular file, and we are | |
1278 | not generating a shared library, then set the symbol to this | |
1279 | location in the .plt. This is required to make function | |
1280 | pointers compare as equal between the normal executable and | |
1281 | the shared library. */ | |
1282 | if (! info->shared | |
1283 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1284 | { | |
1285 | h->root.u.def.section = s; | |
1286 | h->root.u.def.value = h->plt.offset; | |
1287 | } | |
1288 | ||
1289 | /* Make room for this entry. */ | |
1290 | s->_raw_size += PLT_ENTRY_SIZE; | |
1291 | ||
1292 | /* We also need to make an entry in the .got.plt section, which | |
1293 | will be placed in the .got section by the linker script. */ | |
1294 | s = htab->sgotplt; | |
ffb2e45b AM |
1295 | if (s == NULL) |
1296 | abort (); | |
6725bdbf AM |
1297 | s->_raw_size += 4; |
1298 | ||
1299 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
1300 | { | |
1301 | /* We also need to make an entry in the .rel.plt section. */ | |
1302 | s = htab->srelplt; | |
ffb2e45b AM |
1303 | if (s == NULL) |
1304 | abort (); | |
6725bdbf AM |
1305 | s->_raw_size += sizeof (Elf32_External_Rel); |
1306 | } | |
1307 | } | |
1308 | else | |
1309 | { | |
1310 | h->plt.offset = (bfd_vma) -1; | |
1311 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1312 | } | |
1313 | ||
1314 | if (h->got.refcount > 0) | |
1315 | { | |
1316 | boolean dyn; | |
1317 | ||
5a15f56f AM |
1318 | /* Make sure this symbol is output as a dynamic symbol. |
1319 | Undefined weak syms won't yet be marked as dynamic. */ | |
1320 | if (h->dynindx == -1 | |
1321 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1322 | { | |
1323 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
1324 | return false; | |
1325 | } | |
1326 | ||
6725bdbf AM |
1327 | s = htab->sgot; |
1328 | h->got.offset = s->_raw_size; | |
1329 | s->_raw_size += 4; | |
ebe50bae | 1330 | dyn = htab->elf.dynamic_sections_created; |
6725bdbf AM |
1331 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)) |
1332 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rel); | |
1333 | } | |
1334 | else | |
1335 | h->got.offset = (bfd_vma) -1; | |
1336 | ||
5a15f56f AM |
1337 | eh = (struct elf_i386_link_hash_entry *) h; |
1338 | if (eh->dyn_relocs == NULL) | |
1339 | return true; | |
1340 | ||
0c715baa AM |
1341 | /* In the shared -Bsymbolic case, discard space allocated for |
1342 | dynamic pc-relative relocs against symbols which turn out to be | |
1343 | defined in regular objects. For the normal shared case, discard | |
1344 | space for relocs that have become local due to symbol visibility | |
1345 | changes. */ | |
1346 | ||
1347 | if (info->shared) | |
5a15f56f | 1348 | { |
0c715baa AM |
1349 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 |
1350 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
1351 | || info->symbolic)) | |
5a15f56f | 1352 | { |
0c715baa AM |
1353 | struct elf_i386_dyn_relocs **pp; |
1354 | ||
1355 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
1356 | { | |
1357 | p->count -= p->pc_count; | |
1358 | p->pc_count = 0; | |
1359 | if (p->count == 0) | |
1360 | *pp = p->next; | |
1361 | else | |
1362 | pp = &p->next; | |
1363 | } | |
5a15f56f | 1364 | } |
0c715baa AM |
1365 | } |
1366 | else | |
1367 | { | |
1368 | /* For the non-shared case, discard space for relocs against | |
1369 | symbols which turn out to need copy relocs or are not | |
1370 | dynamic. */ | |
1371 | ||
1372 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
1373 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1374 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 1375 | || (htab->elf.dynamic_sections_created |
0c715baa AM |
1376 | && (h->root.type == bfd_link_hash_undefweak |
1377 | || h->root.type == bfd_link_hash_undefined)))) | |
1378 | { | |
1379 | /* Make sure this symbol is output as a dynamic symbol. | |
1380 | Undefined weak syms won't yet be marked as dynamic. */ | |
1381 | if (h->dynindx == -1 | |
1382 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1383 | { | |
1384 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
1385 | return false; | |
1386 | } | |
5a15f56f | 1387 | |
0c715baa AM |
1388 | /* If that succeeded, we know we'll be keeping all the |
1389 | relocs. */ | |
1390 | if (h->dynindx != -1) | |
1391 | goto keep; | |
1392 | } | |
1393 | ||
1394 | eh->dyn_relocs = NULL; | |
1395 | ||
1396 | keep: | |
5a15f56f AM |
1397 | } |
1398 | ||
0c715baa AM |
1399 | /* Finally, allocate space. */ |
1400 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
12d0ee4a | 1401 | { |
0c715baa AM |
1402 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
1403 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rel); | |
12d0ee4a AM |
1404 | } |
1405 | ||
6725bdbf AM |
1406 | return true; |
1407 | } | |
1408 | ||
0c715baa AM |
1409 | /* Find any dynamic relocs that apply to read-only sections. */ |
1410 | ||
1411 | static boolean | |
1412 | readonly_dynrelocs (h, inf) | |
1413 | struct elf_link_hash_entry *h; | |
1414 | PTR inf; | |
1415 | { | |
1416 | struct elf_i386_link_hash_entry *eh; | |
1417 | struct elf_i386_dyn_relocs *p; | |
1418 | ||
1419 | eh = (struct elf_i386_link_hash_entry *) h; | |
1420 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1421 | { | |
1422 | asection *s = p->sec->output_section; | |
1423 | ||
1424 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1425 | { | |
1426 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
1427 | ||
1428 | info->flags |= DF_TEXTREL; | |
1429 | ||
1430 | /* Not an error, just cut short the traversal. */ | |
1431 | return false; | |
1432 | } | |
1433 | } | |
1434 | return true; | |
1435 | } | |
1436 | ||
252b5132 RH |
1437 | /* Set the sizes of the dynamic sections. */ |
1438 | ||
1439 | static boolean | |
1440 | elf_i386_size_dynamic_sections (output_bfd, info) | |
db6751f2 | 1441 | bfd *output_bfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1442 | struct bfd_link_info *info; |
1443 | { | |
6725bdbf | 1444 | struct elf_i386_link_hash_table *htab; |
252b5132 RH |
1445 | bfd *dynobj; |
1446 | asection *s; | |
252b5132 | 1447 | boolean relocs; |
0c715baa | 1448 | bfd *ibfd; |
252b5132 | 1449 | |
6725bdbf | 1450 | htab = elf_i386_hash_table (info); |
ebe50bae | 1451 | dynobj = htab->elf.dynobj; |
ffb2e45b AM |
1452 | if (dynobj == NULL) |
1453 | abort (); | |
252b5132 | 1454 | |
ebe50bae | 1455 | if (htab->elf.dynamic_sections_created) |
252b5132 RH |
1456 | { |
1457 | /* Set the contents of the .interp section to the interpreter. */ | |
1458 | if (! info->shared) | |
1459 | { | |
1460 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
ffb2e45b AM |
1461 | if (s == NULL) |
1462 | abort (); | |
252b5132 RH |
1463 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
1464 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
1465 | } | |
161d71a6 | 1466 | } |
6725bdbf | 1467 | |
0c715baa AM |
1468 | /* Set up .got offsets for local syms, and space for local dynamic |
1469 | relocs. */ | |
1470 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
161d71a6 L |
1471 | { |
1472 | bfd_signed_vma *local_got; | |
1473 | bfd_signed_vma *end_local_got; | |
1474 | bfd_size_type locsymcount; | |
1475 | Elf_Internal_Shdr *symtab_hdr; | |
1476 | asection *srel; | |
6725bdbf | 1477 | |
0c715baa | 1478 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
161d71a6 | 1479 | continue; |
6725bdbf | 1480 | |
0c715baa AM |
1481 | for (s = ibfd->sections; s != NULL; s = s->next) |
1482 | { | |
1483 | bfd_size_type count = elf_section_data (s)->local_dynrel; | |
1484 | ||
1485 | if (count != 0) | |
1486 | { | |
1487 | srel = elf_section_data (s)->sreloc; | |
1488 | srel->_raw_size += count * sizeof (Elf32_External_Rel); | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | local_got = elf_local_got_refcounts (ibfd); | |
161d71a6 L |
1493 | if (!local_got) |
1494 | continue; | |
6725bdbf | 1495 | |
0c715baa | 1496 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
161d71a6 L |
1497 | locsymcount = symtab_hdr->sh_info; |
1498 | end_local_got = local_got + locsymcount; | |
1499 | s = htab->sgot; | |
1500 | srel = htab->srelgot; | |
1501 | for (; local_got < end_local_got; ++local_got) | |
1502 | { | |
1503 | if (*local_got > 0) | |
6725bdbf | 1504 | { |
161d71a6 L |
1505 | *local_got = s->_raw_size; |
1506 | s->_raw_size += 4; | |
1507 | if (info->shared) | |
1508 | srel->_raw_size += sizeof (Elf32_External_Rel); | |
6725bdbf | 1509 | } |
161d71a6 L |
1510 | else |
1511 | *local_got = (bfd_vma) -1; | |
6725bdbf | 1512 | } |
252b5132 | 1513 | } |
6725bdbf | 1514 | |
0c715baa AM |
1515 | /* Allocate global sym .plt and .got entries, and space for global |
1516 | sym dynamic relocs. */ | |
ebe50bae | 1517 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
252b5132 | 1518 | |
5a15f56f AM |
1519 | /* We now have determined the sizes of the various dynamic sections. |
1520 | Allocate memory for them. */ | |
252b5132 | 1521 | relocs = false; |
252b5132 RH |
1522 | for (s = dynobj->sections; s != NULL; s = s->next) |
1523 | { | |
252b5132 RH |
1524 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
1525 | continue; | |
1526 | ||
6725bdbf AM |
1527 | if (s == htab->splt |
1528 | || s == htab->sgot | |
1529 | || s == htab->sgotplt) | |
252b5132 | 1530 | { |
6725bdbf AM |
1531 | /* Strip this section if we don't need it; see the |
1532 | comment below. */ | |
252b5132 | 1533 | } |
6725bdbf | 1534 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rel", 4) == 0) |
252b5132 RH |
1535 | { |
1536 | if (s->_raw_size == 0) | |
1537 | { | |
1538 | /* If we don't need this section, strip it from the | |
1539 | output file. This is mostly to handle .rel.bss and | |
1540 | .rel.plt. We must create both sections in | |
1541 | create_dynamic_sections, because they must be created | |
1542 | before the linker maps input sections to output | |
1543 | sections. The linker does that before | |
1544 | adjust_dynamic_symbol is called, and it is that | |
1545 | function which decides whether anything needs to go | |
1546 | into these sections. */ | |
252b5132 RH |
1547 | } |
1548 | else | |
1549 | { | |
6725bdbf | 1550 | if (s != htab->srelplt) |
db6751f2 | 1551 | relocs = true; |
252b5132 RH |
1552 | |
1553 | /* We use the reloc_count field as a counter if we need | |
1554 | to copy relocs into the output file. */ | |
1555 | s->reloc_count = 0; | |
1556 | } | |
1557 | } | |
6725bdbf | 1558 | else |
252b5132 RH |
1559 | { |
1560 | /* It's not one of our sections, so don't allocate space. */ | |
1561 | continue; | |
1562 | } | |
1563 | ||
6725bdbf | 1564 | if (s->_raw_size == 0) |
252b5132 | 1565 | { |
7f8d5fc9 | 1566 | _bfd_strip_section_from_output (info, s); |
252b5132 RH |
1567 | continue; |
1568 | } | |
1569 | ||
f69da49f AM |
1570 | /* Allocate memory for the section contents. We use bfd_zalloc |
1571 | here in case unused entries are not reclaimed before the | |
1572 | section's contents are written out. This should not happen, | |
1573 | but this way if it does, we get a R_386_NONE reloc instead | |
1574 | of garbage. */ | |
7a9af8c4 | 1575 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); |
6725bdbf | 1576 | if (s->contents == NULL) |
252b5132 RH |
1577 | return false; |
1578 | } | |
1579 | ||
ebe50bae | 1580 | if (htab->elf.dynamic_sections_created) |
252b5132 RH |
1581 | { |
1582 | /* Add some entries to the .dynamic section. We fill in the | |
1583 | values later, in elf_i386_finish_dynamic_sections, but we | |
1584 | must add the entries now so that we get the correct size for | |
1585 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1586 | dynamic linker and used by the debugger. */ | |
dc810e39 AM |
1587 | #define add_dynamic_entry(TAG, VAL) \ |
1588 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
1589 | ||
252b5132 RH |
1590 | if (! info->shared) |
1591 | { | |
dc810e39 | 1592 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
252b5132 RH |
1593 | return false; |
1594 | } | |
1595 | ||
6725bdbf | 1596 | if (htab->splt->_raw_size != 0) |
252b5132 | 1597 | { |
dc810e39 AM |
1598 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
1599 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
1600 | || !add_dynamic_entry (DT_PLTREL, DT_REL) | |
1601 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
252b5132 RH |
1602 | return false; |
1603 | } | |
1604 | ||
1605 | if (relocs) | |
1606 | { | |
dc810e39 AM |
1607 | if (!add_dynamic_entry (DT_REL, 0) |
1608 | || !add_dynamic_entry (DT_RELSZ, 0) | |
1609 | || !add_dynamic_entry (DT_RELENT, sizeof (Elf32_External_Rel))) | |
252b5132 | 1610 | return false; |
252b5132 | 1611 | |
0c715baa AM |
1612 | /* If any dynamic relocs apply to a read-only section, |
1613 | then we need a DT_TEXTREL entry. */ | |
ebe50bae | 1614 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, (PTR) info); |
0c715baa AM |
1615 | |
1616 | if ((info->flags & DF_TEXTREL) != 0) | |
1617 | { | |
1618 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
1619 | return false; | |
1620 | } | |
252b5132 RH |
1621 | } |
1622 | } | |
dc810e39 | 1623 | #undef add_dynamic_entry |
252b5132 RH |
1624 | |
1625 | return true; | |
1626 | } | |
1627 | ||
38701953 AM |
1628 | /* Set the correct type for an x86 ELF section. We do this by the |
1629 | section name, which is a hack, but ought to work. */ | |
1630 | ||
1631 | static boolean | |
1632 | elf_i386_fake_sections (abfd, hdr, sec) | |
1633 | bfd *abfd ATTRIBUTE_UNUSED; | |
1634 | Elf32_Internal_Shdr *hdr; | |
1635 | asection *sec; | |
1636 | { | |
1637 | register const char *name; | |
1638 | ||
1639 | name = bfd_get_section_name (abfd, sec); | |
1640 | ||
1641 | /* This is an ugly, but unfortunately necessary hack that is | |
1642 | needed when producing EFI binaries on x86. It tells | |
1643 | elf.c:elf_fake_sections() not to consider ".reloc" as a section | |
1644 | containing ELF relocation info. We need this hack in order to | |
1645 | be able to generate ELF binaries that can be translated into | |
1646 | EFI applications (which are essentially COFF objects). Those | |
1647 | files contain a COFF ".reloc" section inside an ELFNN object, | |
1648 | which would normally cause BFD to segfault because it would | |
1649 | attempt to interpret this section as containing relocation | |
1650 | entries for section "oc". With this hack enabled, ".reloc" | |
1651 | will be treated as a normal data section, which will avoid the | |
1652 | segfault. However, you won't be able to create an ELFNN binary | |
1653 | with a section named "oc" that needs relocations, but that's | |
1654 | the kind of ugly side-effects you get when detecting section | |
1655 | types based on their names... In practice, this limitation is | |
1656 | unlikely to bite. */ | |
1657 | if (strcmp (name, ".reloc") == 0) | |
1658 | hdr->sh_type = SHT_PROGBITS; | |
1659 | ||
1660 | return true; | |
1661 | } | |
1662 | ||
252b5132 RH |
1663 | /* Relocate an i386 ELF section. */ |
1664 | ||
1665 | static boolean | |
1666 | elf_i386_relocate_section (output_bfd, info, input_bfd, input_section, | |
1667 | contents, relocs, local_syms, local_sections) | |
1668 | bfd *output_bfd; | |
1669 | struct bfd_link_info *info; | |
1670 | bfd *input_bfd; | |
1671 | asection *input_section; | |
1672 | bfd_byte *contents; | |
1673 | Elf_Internal_Rela *relocs; | |
1674 | Elf_Internal_Sym *local_syms; | |
1675 | asection **local_sections; | |
1676 | { | |
6725bdbf | 1677 | struct elf_i386_link_hash_table *htab; |
252b5132 RH |
1678 | bfd *dynobj; |
1679 | Elf_Internal_Shdr *symtab_hdr; | |
1680 | struct elf_link_hash_entry **sym_hashes; | |
1681 | bfd_vma *local_got_offsets; | |
252b5132 RH |
1682 | Elf_Internal_Rela *rel; |
1683 | Elf_Internal_Rela *relend; | |
1684 | ||
6725bdbf | 1685 | htab = elf_i386_hash_table (info); |
ebe50bae | 1686 | dynobj = htab->elf.dynobj; |
252b5132 RH |
1687 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
1688 | sym_hashes = elf_sym_hashes (input_bfd); | |
1689 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
1690 | ||
252b5132 RH |
1691 | rel = relocs; |
1692 | relend = relocs + input_section->reloc_count; | |
1693 | for (; rel < relend; rel++) | |
1694 | { | |
1695 | int r_type; | |
1696 | reloc_howto_type *howto; | |
1697 | unsigned long r_symndx; | |
1698 | struct elf_link_hash_entry *h; | |
1699 | Elf_Internal_Sym *sym; | |
1700 | asection *sec; | |
ffb2e45b | 1701 | bfd_vma off; |
252b5132 | 1702 | bfd_vma relocation; |
83be169b | 1703 | boolean unresolved_reloc; |
252b5132 | 1704 | bfd_reloc_status_type r; |
1b452ec6 | 1705 | unsigned int indx; |
252b5132 RH |
1706 | |
1707 | r_type = ELF32_R_TYPE (rel->r_info); | |
dc47f327 AM |
1708 | if (r_type == (int) R_386_GNU_VTINHERIT |
1709 | || r_type == (int) R_386_GNU_VTENTRY) | |
252b5132 | 1710 | continue; |
dc47f327 | 1711 | |
1b452ec6 | 1712 | if ((indx = (unsigned) r_type) >= R_386_standard |
dc47f327 AM |
1713 | && ((indx = (unsigned) r_type - R_386_ext_offset) - R_386_standard |
1714 | >= R_386_ext - R_386_standard)) | |
252b5132 RH |
1715 | { |
1716 | bfd_set_error (bfd_error_bad_value); | |
1717 | return false; | |
1718 | } | |
1b452ec6 | 1719 | howto = elf_howto_table + indx; |
252b5132 RH |
1720 | |
1721 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1722 | ||
1723 | if (info->relocateable) | |
1724 | { | |
1725 | /* This is a relocateable link. We don't have to change | |
1726 | anything, unless the reloc is against a section symbol, | |
1727 | in which case we have to adjust according to where the | |
1728 | section symbol winds up in the output section. */ | |
1729 | if (r_symndx < symtab_hdr->sh_info) | |
1730 | { | |
1731 | sym = local_syms + r_symndx; | |
1732 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1733 | { | |
1734 | bfd_vma val; | |
1735 | ||
1736 | sec = local_sections[r_symndx]; | |
1737 | val = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
1738 | val += sec->output_offset + sym->st_value; | |
1739 | bfd_put_32 (input_bfd, val, contents + rel->r_offset); | |
1740 | } | |
1741 | } | |
1742 | ||
1743 | continue; | |
1744 | } | |
1745 | ||
1746 | /* This is a final link. */ | |
1747 | h = NULL; | |
1748 | sym = NULL; | |
1749 | sec = NULL; | |
83be169b | 1750 | unresolved_reloc = false; |
252b5132 RH |
1751 | if (r_symndx < symtab_hdr->sh_info) |
1752 | { | |
1753 | sym = local_syms + r_symndx; | |
1754 | sec = local_sections[r_symndx]; | |
1755 | relocation = (sec->output_section->vma | |
1756 | + sec->output_offset | |
1757 | + sym->st_value); | |
1758 | } | |
1759 | else | |
1760 | { | |
1761 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1762 | while (h->root.type == bfd_link_hash_indirect | |
1763 | || h->root.type == bfd_link_hash_warning) | |
1764 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
ffb2e45b | 1765 | |
6725bdbf | 1766 | relocation = 0; |
252b5132 RH |
1767 | if (h->root.type == bfd_link_hash_defined |
1768 | || h->root.type == bfd_link_hash_defweak) | |
1769 | { | |
1770 | sec = h->root.u.def.section; | |
83be169b AM |
1771 | if (sec->output_section == NULL) |
1772 | /* Set a flag that will be cleared later if we find a | |
1773 | relocation value for this symbol. output_section | |
1774 | is typically NULL for symbols satisfied by a shared | |
1775 | library. */ | |
1776 | unresolved_reloc = true; | |
252b5132 RH |
1777 | else |
1778 | relocation = (h->root.u.def.value | |
1779 | + sec->output_section->vma | |
1780 | + sec->output_offset); | |
1781 | } | |
1782 | else if (h->root.type == bfd_link_hash_undefweak) | |
6725bdbf | 1783 | ; |
671bae9c NC |
1784 | else if (info->shared |
1785 | && (!info->symbolic || info->allow_shlib_undefined) | |
3a27a730 L |
1786 | && !info->no_undefined |
1787 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
6725bdbf | 1788 | ; |
252b5132 RH |
1789 | else |
1790 | { | |
1791 | if (! ((*info->callbacks->undefined_symbol) | |
1792 | (info, h->root.root.string, input_bfd, | |
5cc7c785 | 1793 | input_section, rel->r_offset, |
3a27a730 L |
1794 | (!info->shared || info->no_undefined |
1795 | || ELF_ST_VISIBILITY (h->other))))) | |
252b5132 | 1796 | return false; |
252b5132 RH |
1797 | } |
1798 | } | |
1799 | ||
1800 | switch (r_type) | |
1801 | { | |
1802 | case R_386_GOT32: | |
1803 | /* Relocation is to the entry for this symbol in the global | |
1804 | offset table. */ | |
ffb2e45b AM |
1805 | if (htab->sgot == NULL) |
1806 | abort (); | |
252b5132 RH |
1807 | |
1808 | if (h != NULL) | |
1809 | { | |
6725bdbf | 1810 | boolean dyn; |
252b5132 RH |
1811 | |
1812 | off = h->got.offset; | |
ebe50bae | 1813 | dyn = htab->elf.dynamic_sections_created; |
6725bdbf | 1814 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h) |
252b5132 | 1815 | || (info->shared |
6725bdbf AM |
1816 | && (info->symbolic |
1817 | || h->dynindx == -1 | |
1818 | || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)) | |
252b5132 RH |
1819 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) |
1820 | { | |
1821 | /* This is actually a static link, or it is a | |
1822 | -Bsymbolic link and the symbol is defined | |
1823 | locally, or the symbol was forced to be local | |
1824 | because of a version file. We must initialize | |
1825 | this entry in the global offset table. Since the | |
1826 | offset must always be a multiple of 4, we use the | |
1827 | least significant bit to record whether we have | |
1828 | initialized it already. | |
1829 | ||
1830 | When doing a dynamic link, we create a .rel.got | |
1831 | relocation entry to initialize the value. This | |
1832 | is done in the finish_dynamic_symbol routine. */ | |
1833 | if ((off & 1) != 0) | |
1834 | off &= ~1; | |
1835 | else | |
1836 | { | |
1837 | bfd_put_32 (output_bfd, relocation, | |
6725bdbf | 1838 | htab->sgot->contents + off); |
252b5132 RH |
1839 | h->got.offset |= 1; |
1840 | } | |
1841 | } | |
8c694914 AM |
1842 | else |
1843 | unresolved_reloc = false; | |
252b5132 RH |
1844 | } |
1845 | else | |
1846 | { | |
ffb2e45b AM |
1847 | if (local_got_offsets == NULL) |
1848 | abort (); | |
252b5132 RH |
1849 | |
1850 | off = local_got_offsets[r_symndx]; | |
1851 | ||
1852 | /* The offset must always be a multiple of 4. We use | |
83be169b AM |
1853 | the least significant bit to record whether we have |
1854 | already generated the necessary reloc. */ | |
252b5132 RH |
1855 | if ((off & 1) != 0) |
1856 | off &= ~1; | |
1857 | else | |
1858 | { | |
6725bdbf AM |
1859 | bfd_put_32 (output_bfd, relocation, |
1860 | htab->sgot->contents + off); | |
252b5132 RH |
1861 | |
1862 | if (info->shared) | |
1863 | { | |
1864 | asection *srelgot; | |
1865 | Elf_Internal_Rel outrel; | |
1866 | ||
6725bdbf | 1867 | srelgot = htab->srelgot; |
ffb2e45b AM |
1868 | if (srelgot == NULL) |
1869 | abort (); | |
252b5132 | 1870 | |
6725bdbf AM |
1871 | outrel.r_offset = (htab->sgot->output_section->vma |
1872 | + htab->sgot->output_offset | |
252b5132 RH |
1873 | + off); |
1874 | outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); | |
1875 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, | |
1876 | (((Elf32_External_Rel *) | |
1877 | srelgot->contents) | |
1878 | + srelgot->reloc_count)); | |
1879 | ++srelgot->reloc_count; | |
1880 | } | |
1881 | ||
1882 | local_got_offsets[r_symndx] |= 1; | |
1883 | } | |
252b5132 RH |
1884 | } |
1885 | ||
ffb2e45b AM |
1886 | if (off >= (bfd_vma) -2) |
1887 | abort (); | |
1888 | ||
1889 | relocation = htab->sgot->output_offset + off; | |
252b5132 RH |
1890 | break; |
1891 | ||
1892 | case R_386_GOTOFF: | |
1893 | /* Relocation is relative to the start of the global offset | |
1894 | table. */ | |
1895 | ||
252b5132 RH |
1896 | /* Note that sgot->output_offset is not involved in this |
1897 | calculation. We always want the start of .got. If we | |
1898 | defined _GLOBAL_OFFSET_TABLE in a different way, as is | |
1899 | permitted by the ABI, we might have to change this | |
1900 | calculation. */ | |
6725bdbf | 1901 | relocation -= htab->sgot->output_section->vma; |
252b5132 RH |
1902 | break; |
1903 | ||
1904 | case R_386_GOTPC: | |
1905 | /* Use global offset table as symbol value. */ | |
6725bdbf | 1906 | relocation = htab->sgot->output_section->vma; |
83be169b | 1907 | unresolved_reloc = false; |
252b5132 RH |
1908 | break; |
1909 | ||
1910 | case R_386_PLT32: | |
1911 | /* Relocation is to the entry for this symbol in the | |
1912 | procedure linkage table. */ | |
1913 | ||
dd5724d5 | 1914 | /* Resolve a PLT32 reloc against a local symbol directly, |
83be169b | 1915 | without using the procedure linkage table. */ |
252b5132 RH |
1916 | if (h == NULL) |
1917 | break; | |
1918 | ||
dd5724d5 | 1919 | if (h->plt.offset == (bfd_vma) -1 |
6725bdbf | 1920 | || htab->splt == NULL) |
252b5132 RH |
1921 | { |
1922 | /* We didn't make a PLT entry for this symbol. This | |
83be169b AM |
1923 | happens when statically linking PIC code, or when |
1924 | using -Bsymbolic. */ | |
252b5132 RH |
1925 | break; |
1926 | } | |
1927 | ||
6725bdbf AM |
1928 | relocation = (htab->splt->output_section->vma |
1929 | + htab->splt->output_offset | |
252b5132 | 1930 | + h->plt.offset); |
83be169b | 1931 | unresolved_reloc = false; |
252b5132 RH |
1932 | break; |
1933 | ||
1934 | case R_386_32: | |
1935 | case R_386_PC32: | |
12d0ee4a AM |
1936 | if ((info->shared |
1937 | && (input_section->flags & SEC_ALLOC) != 0 | |
1938 | && (r_type != R_386_PC32 | |
1939 | || (h != NULL | |
1940 | && h->dynindx != -1 | |
1941 | && (! info->symbolic | |
1942 | || (h->elf_link_hash_flags | |
1943 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1944 | || (!info->shared | |
1945 | && (input_section->flags & SEC_ALLOC) != 0 | |
1946 | && h != NULL | |
1947 | && h->dynindx != -1 | |
1948 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
1949 | && (((h->elf_link_hash_flags |
1950 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1951 | && (h->elf_link_hash_flags | |
1952 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
28d0b90e AM |
1953 | || h->root.type == bfd_link_hash_undefweak |
1954 | || h->root.type == bfd_link_hash_undefined))) | |
252b5132 RH |
1955 | { |
1956 | Elf_Internal_Rel outrel; | |
1957 | boolean skip, relocate; | |
0c715baa AM |
1958 | asection *sreloc; |
1959 | Elf32_External_Rel *loc; | |
252b5132 RH |
1960 | |
1961 | /* When generating a shared object, these relocations | |
1962 | are copied into the output file to be resolved at run | |
1963 | time. */ | |
1964 | ||
252b5132 RH |
1965 | skip = false; |
1966 | ||
1967 | if (elf_section_data (input_section)->stab_info == NULL) | |
1968 | outrel.r_offset = rel->r_offset; | |
1969 | else | |
1970 | { | |
252b5132 | 1971 | off = (_bfd_stab_section_offset |
ebe50bae | 1972 | (output_bfd, htab->elf.stab_info, input_section, |
252b5132 RH |
1973 | &elf_section_data (input_section)->stab_info, |
1974 | rel->r_offset)); | |
1975 | if (off == (bfd_vma) -1) | |
1976 | skip = true; | |
1977 | outrel.r_offset = off; | |
1978 | } | |
1979 | ||
1980 | outrel.r_offset += (input_section->output_section->vma | |
1981 | + input_section->output_offset); | |
1982 | ||
1983 | if (skip) | |
1984 | { | |
1985 | memset (&outrel, 0, sizeof outrel); | |
1986 | relocate = false; | |
1987 | } | |
5a15f56f AM |
1988 | else if (h != NULL |
1989 | && h->dynindx != -1 | |
1990 | && (r_type == R_386_PC32 | |
1991 | || !info->shared | |
1992 | || !info->symbolic | |
1993 | || (h->elf_link_hash_flags | |
1994 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
1995 | ||
252b5132 | 1996 | { |
252b5132 | 1997 | relocate = false; |
5a15f56f | 1998 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
252b5132 RH |
1999 | } |
2000 | else | |
2001 | { | |
5a15f56f AM |
2002 | /* This symbol is local, or marked to become local. */ |
2003 | relocate = true; | |
2004 | outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); | |
252b5132 RH |
2005 | } |
2006 | ||
0c715baa AM |
2007 | sreloc = elf_section_data (input_section)->sreloc; |
2008 | if (sreloc == NULL) | |
2009 | abort (); | |
2010 | ||
2011 | loc = ((Elf32_External_Rel *) sreloc->contents | |
2012 | + sreloc->reloc_count); | |
2013 | sreloc->reloc_count += 1; | |
2014 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
252b5132 RH |
2015 | |
2016 | /* If this reloc is against an external symbol, we do | |
2017 | not want to fiddle with the addend. Otherwise, we | |
2018 | need to include the symbol value so that it becomes | |
2019 | an addend for the dynamic reloc. */ | |
2020 | if (! relocate) | |
2021 | continue; | |
2022 | } | |
2023 | ||
2024 | break; | |
2025 | ||
2026 | default: | |
2027 | break; | |
2028 | } | |
2029 | ||
8c694914 AM |
2030 | /* FIXME: Why do we allow debugging sections to escape this error? |
2031 | More importantly, why do we not emit dynamic relocs for | |
2032 | R_386_32 above in debugging sections (which are ! SEC_ALLOC)? | |
2033 | If we had emitted the dynamic reloc, we could remove the | |
2034 | fudge here. */ | |
2035 | if (unresolved_reloc | |
2036 | && !(info->shared | |
2037 | && (input_section->flags & SEC_DEBUGGING) != 0 | |
2038 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) | |
83be169b AM |
2039 | (*_bfd_error_handler) |
2040 | (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"), | |
8f615d07 | 2041 | bfd_archive_filename (input_bfd), |
83be169b AM |
2042 | bfd_get_section_name (input_bfd, input_section), |
2043 | (long) rel->r_offset, | |
2044 | h->root.root.string); | |
2045 | ||
252b5132 RH |
2046 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
2047 | contents, rel->r_offset, | |
2048 | relocation, (bfd_vma) 0); | |
2049 | ||
ffb2e45b | 2050 | switch (r) |
252b5132 | 2051 | { |
ffb2e45b AM |
2052 | case bfd_reloc_ok: |
2053 | break; | |
2054 | ||
2055 | case bfd_reloc_overflow: | |
2056 | { | |
2057 | const char *name; | |
2058 | ||
2059 | if (h != NULL) | |
2060 | name = h->root.root.string; | |
2061 | else | |
252b5132 | 2062 | { |
ffb2e45b AM |
2063 | name = bfd_elf_string_from_elf_section (input_bfd, |
2064 | symtab_hdr->sh_link, | |
2065 | sym->st_name); | |
2066 | if (name == NULL) | |
252b5132 | 2067 | return false; |
ffb2e45b AM |
2068 | if (*name == '\0') |
2069 | name = bfd_section_name (input_bfd, sec); | |
252b5132 | 2070 | } |
ffb2e45b AM |
2071 | if (! ((*info->callbacks->reloc_overflow) |
2072 | (info, name, howto->name, (bfd_vma) 0, | |
2073 | input_bfd, input_section, rel->r_offset))) | |
2074 | return false; | |
2075 | } | |
2076 | break; | |
2077 | ||
2078 | default: | |
2079 | case bfd_reloc_outofrange: | |
2080 | abort (); | |
2081 | break; | |
252b5132 RH |
2082 | } |
2083 | } | |
2084 | ||
2085 | return true; | |
2086 | } | |
2087 | ||
2088 | /* Finish up dynamic symbol handling. We set the contents of various | |
2089 | dynamic sections here. */ | |
2090 | ||
2091 | static boolean | |
2092 | elf_i386_finish_dynamic_symbol (output_bfd, info, h, sym) | |
2093 | bfd *output_bfd; | |
2094 | struct bfd_link_info *info; | |
2095 | struct elf_link_hash_entry *h; | |
2096 | Elf_Internal_Sym *sym; | |
2097 | { | |
6725bdbf | 2098 | struct elf_i386_link_hash_table *htab; |
252b5132 RH |
2099 | bfd *dynobj; |
2100 | ||
6725bdbf | 2101 | htab = elf_i386_hash_table (info); |
ebe50bae | 2102 | dynobj = htab->elf.dynobj; |
252b5132 RH |
2103 | |
2104 | if (h->plt.offset != (bfd_vma) -1) | |
2105 | { | |
252b5132 RH |
2106 | bfd_vma plt_index; |
2107 | bfd_vma got_offset; | |
2108 | Elf_Internal_Rel rel; | |
2109 | ||
2110 | /* This symbol has an entry in the procedure linkage table. Set | |
2111 | it up. */ | |
2112 | ||
ffb2e45b AM |
2113 | if (h->dynindx == -1 |
2114 | || htab->splt == NULL | |
2115 | || htab->sgotplt == NULL | |
2116 | || htab->srelplt == NULL) | |
2117 | abort (); | |
252b5132 RH |
2118 | |
2119 | /* Get the index in the procedure linkage table which | |
2120 | corresponds to this symbol. This is the index of this symbol | |
2121 | in all the symbols for which we are making plt entries. The | |
2122 | first entry in the procedure linkage table is reserved. */ | |
2123 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
2124 | ||
2125 | /* Get the offset into the .got table of the entry that | |
2126 | corresponds to this function. Each .got entry is 4 bytes. | |
2127 | The first three are reserved. */ | |
2128 | got_offset = (plt_index + 3) * 4; | |
2129 | ||
2130 | /* Fill in the entry in the procedure linkage table. */ | |
2131 | if (! info->shared) | |
2132 | { | |
6725bdbf | 2133 | memcpy (htab->splt->contents + h->plt.offset, elf_i386_plt_entry, |
252b5132 RH |
2134 | PLT_ENTRY_SIZE); |
2135 | bfd_put_32 (output_bfd, | |
6725bdbf AM |
2136 | (htab->sgotplt->output_section->vma |
2137 | + htab->sgotplt->output_offset | |
252b5132 | 2138 | + got_offset), |
6725bdbf | 2139 | htab->splt->contents + h->plt.offset + 2); |
252b5132 RH |
2140 | } |
2141 | else | |
2142 | { | |
6725bdbf | 2143 | memcpy (htab->splt->contents + h->plt.offset, elf_i386_pic_plt_entry, |
252b5132 RH |
2144 | PLT_ENTRY_SIZE); |
2145 | bfd_put_32 (output_bfd, got_offset, | |
6725bdbf | 2146 | htab->splt->contents + h->plt.offset + 2); |
252b5132 RH |
2147 | } |
2148 | ||
2149 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rel), | |
6725bdbf | 2150 | htab->splt->contents + h->plt.offset + 7); |
252b5132 | 2151 | bfd_put_32 (output_bfd, - (h->plt.offset + PLT_ENTRY_SIZE), |
6725bdbf | 2152 | htab->splt->contents + h->plt.offset + 12); |
252b5132 RH |
2153 | |
2154 | /* Fill in the entry in the global offset table. */ | |
2155 | bfd_put_32 (output_bfd, | |
6725bdbf AM |
2156 | (htab->splt->output_section->vma |
2157 | + htab->splt->output_offset | |
252b5132 RH |
2158 | + h->plt.offset |
2159 | + 6), | |
6725bdbf | 2160 | htab->sgotplt->contents + got_offset); |
252b5132 RH |
2161 | |
2162 | /* Fill in the entry in the .rel.plt section. */ | |
6725bdbf AM |
2163 | rel.r_offset = (htab->sgotplt->output_section->vma |
2164 | + htab->sgotplt->output_offset | |
252b5132 RH |
2165 | + got_offset); |
2166 | rel.r_info = ELF32_R_INFO (h->dynindx, R_386_JUMP_SLOT); | |
2167 | bfd_elf32_swap_reloc_out (output_bfd, &rel, | |
6725bdbf | 2168 | ((Elf32_External_Rel *) htab->srelplt->contents |
252b5132 RH |
2169 | + plt_index)); |
2170 | ||
2171 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
2172 | { | |
2173 | /* Mark the symbol as undefined, rather than as defined in | |
2174 | the .plt section. Leave the value alone. */ | |
2175 | sym->st_shndx = SHN_UNDEF; | |
2176 | } | |
2177 | } | |
2178 | ||
2179 | if (h->got.offset != (bfd_vma) -1) | |
2180 | { | |
252b5132 RH |
2181 | Elf_Internal_Rel rel; |
2182 | ||
2183 | /* This symbol has an entry in the global offset table. Set it | |
2184 | up. */ | |
2185 | ||
ffb2e45b AM |
2186 | if (htab->sgot == NULL || htab->srelgot == NULL) |
2187 | abort (); | |
252b5132 | 2188 | |
6725bdbf AM |
2189 | rel.r_offset = (htab->sgot->output_section->vma |
2190 | + htab->sgot->output_offset | |
dc810e39 | 2191 | + (h->got.offset & ~(bfd_vma) 1)); |
252b5132 | 2192 | |
dd5724d5 AM |
2193 | /* If this is a static link, or it is a -Bsymbolic link and the |
2194 | symbol is defined locally or was forced to be local because | |
2195 | of a version file, we just want to emit a RELATIVE reloc. | |
252b5132 RH |
2196 | The entry in the global offset table will already have been |
2197 | initialized in the relocate_section function. */ | |
6725bdbf AM |
2198 | if (info->shared |
2199 | && (info->symbolic | |
2200 | || h->dynindx == -1 | |
2201 | || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)) | |
2202 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
dd5724d5 | 2203 | { |
6725bdbf | 2204 | BFD_ASSERT((h->got.offset & 1) != 0); |
dd5724d5 AM |
2205 | rel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); |
2206 | } | |
252b5132 RH |
2207 | else |
2208 | { | |
dd5724d5 | 2209 | BFD_ASSERT((h->got.offset & 1) == 0); |
6725bdbf AM |
2210 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
2211 | htab->sgot->contents + h->got.offset); | |
252b5132 RH |
2212 | rel.r_info = ELF32_R_INFO (h->dynindx, R_386_GLOB_DAT); |
2213 | } | |
2214 | ||
2215 | bfd_elf32_swap_reloc_out (output_bfd, &rel, | |
6725bdbf AM |
2216 | ((Elf32_External_Rel *) htab->srelgot->contents |
2217 | + htab->srelgot->reloc_count)); | |
2218 | ++htab->srelgot->reloc_count; | |
252b5132 RH |
2219 | } |
2220 | ||
791987af | 2221 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
252b5132 | 2222 | { |
252b5132 RH |
2223 | Elf_Internal_Rel rel; |
2224 | ||
2225 | /* This symbol needs a copy reloc. Set it up. */ | |
2226 | ||
ffb2e45b AM |
2227 | if (h->dynindx == -1 |
2228 | || (h->root.type != bfd_link_hash_defined | |
2229 | && h->root.type != bfd_link_hash_defweak) | |
2230 | || htab->srelbss == NULL) | |
2231 | abort (); | |
252b5132 RH |
2232 | |
2233 | rel.r_offset = (h->root.u.def.value | |
2234 | + h->root.u.def.section->output_section->vma | |
2235 | + h->root.u.def.section->output_offset); | |
2236 | rel.r_info = ELF32_R_INFO (h->dynindx, R_386_COPY); | |
2237 | bfd_elf32_swap_reloc_out (output_bfd, &rel, | |
6725bdbf AM |
2238 | ((Elf32_External_Rel *) htab->srelbss->contents |
2239 | + htab->srelbss->reloc_count)); | |
2240 | ++htab->srelbss->reloc_count; | |
252b5132 RH |
2241 | } |
2242 | ||
2243 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
2244 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
2245 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
2246 | sym->st_shndx = SHN_ABS; | |
2247 | ||
2248 | return true; | |
2249 | } | |
2250 | ||
38701953 AM |
2251 | /* Used to decide how to sort relocs in an optimal manner for the |
2252 | dynamic linker, before writing them out. */ | |
2253 | ||
2254 | static enum elf_reloc_type_class | |
2255 | elf_i386_reloc_type_class (rela) | |
2256 | const Elf_Internal_Rela *rela; | |
2257 | { | |
2258 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
2259 | { | |
2260 | case R_386_RELATIVE: | |
2261 | return reloc_class_relative; | |
2262 | case R_386_JUMP_SLOT: | |
2263 | return reloc_class_plt; | |
2264 | case R_386_COPY: | |
2265 | return reloc_class_copy; | |
2266 | default: | |
2267 | return reloc_class_normal; | |
2268 | } | |
2269 | } | |
2270 | ||
252b5132 RH |
2271 | /* Finish up the dynamic sections. */ |
2272 | ||
2273 | static boolean | |
2274 | elf_i386_finish_dynamic_sections (output_bfd, info) | |
2275 | bfd *output_bfd; | |
2276 | struct bfd_link_info *info; | |
2277 | { | |
6725bdbf | 2278 | struct elf_i386_link_hash_table *htab; |
252b5132 | 2279 | bfd *dynobj; |
252b5132 RH |
2280 | asection *sdyn; |
2281 | ||
6725bdbf | 2282 | htab = elf_i386_hash_table (info); |
ebe50bae | 2283 | dynobj = htab->elf.dynobj; |
252b5132 RH |
2284 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
2285 | ||
ebe50bae | 2286 | if (htab->elf.dynamic_sections_created) |
252b5132 | 2287 | { |
252b5132 RH |
2288 | Elf32_External_Dyn *dyncon, *dynconend; |
2289 | ||
ffb2e45b AM |
2290 | if (sdyn == NULL || htab->sgot == NULL) |
2291 | abort (); | |
252b5132 RH |
2292 | |
2293 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
2294 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
2295 | for (; dyncon < dynconend; dyncon++) | |
2296 | { | |
2297 | Elf_Internal_Dyn dyn; | |
252b5132 RH |
2298 | |
2299 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
2300 | ||
2301 | switch (dyn.d_tag) | |
2302 | { | |
2303 | default: | |
2304 | break; | |
2305 | ||
2306 | case DT_PLTGOT: | |
6725bdbf AM |
2307 | dyn.d_un.d_ptr = htab->sgot->output_section->vma; |
2308 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2309 | break; | |
2310 | ||
252b5132 | 2311 | case DT_JMPREL: |
6725bdbf | 2312 | dyn.d_un.d_ptr = htab->srelplt->output_section->vma; |
252b5132 RH |
2313 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
2314 | break; | |
2315 | ||
2316 | case DT_PLTRELSZ: | |
6725bdbf AM |
2317 | if (htab->srelplt->output_section->_cooked_size != 0) |
2318 | dyn.d_un.d_val = htab->srelplt->output_section->_cooked_size; | |
252b5132 | 2319 | else |
6725bdbf | 2320 | dyn.d_un.d_val = htab->srelplt->output_section->_raw_size; |
252b5132 RH |
2321 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
2322 | break; | |
2323 | ||
2324 | case DT_RELSZ: | |
2325 | /* My reading of the SVR4 ABI indicates that the | |
2326 | procedure linkage table relocs (DT_JMPREL) should be | |
2327 | included in the overall relocs (DT_REL). This is | |
2328 | what Solaris does. However, UnixWare can not handle | |
2329 | that case. Therefore, we override the DT_RELSZ entry | |
2330 | here to make it not include the JMPREL relocs. Since | |
2331 | the linker script arranges for .rel.plt to follow all | |
2332 | other relocation sections, we don't have to worry | |
2333 | about changing the DT_REL entry. */ | |
6725bdbf | 2334 | if (htab->srelplt != NULL) |
252b5132 | 2335 | { |
6725bdbf AM |
2336 | if (htab->srelplt->output_section->_cooked_size != 0) |
2337 | dyn.d_un.d_val -= htab->srelplt->output_section->_cooked_size; | |
252b5132 | 2338 | else |
6725bdbf | 2339 | dyn.d_un.d_val -= htab->srelplt->output_section->_raw_size; |
252b5132 RH |
2340 | } |
2341 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2342 | break; | |
2343 | } | |
2344 | } | |
2345 | ||
2346 | /* Fill in the first entry in the procedure linkage table. */ | |
6725bdbf | 2347 | if (htab->splt && htab->splt->_raw_size > 0) |
252b5132 RH |
2348 | { |
2349 | if (info->shared) | |
6725bdbf AM |
2350 | memcpy (htab->splt->contents, |
2351 | elf_i386_pic_plt0_entry, PLT_ENTRY_SIZE); | |
252b5132 RH |
2352 | else |
2353 | { | |
6725bdbf AM |
2354 | memcpy (htab->splt->contents, |
2355 | elf_i386_plt0_entry, PLT_ENTRY_SIZE); | |
252b5132 | 2356 | bfd_put_32 (output_bfd, |
6725bdbf AM |
2357 | (htab->sgotplt->output_section->vma |
2358 | + htab->sgotplt->output_offset | |
2359 | + 4), | |
2360 | htab->splt->contents + 2); | |
252b5132 | 2361 | bfd_put_32 (output_bfd, |
6725bdbf AM |
2362 | (htab->sgotplt->output_section->vma |
2363 | + htab->sgotplt->output_offset | |
2364 | + 8), | |
2365 | htab->splt->contents + 8); | |
252b5132 RH |
2366 | } |
2367 | ||
2368 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
2369 | really seem like the right value. */ | |
6725bdbf AM |
2370 | elf_section_data (htab->splt->output_section) |
2371 | ->this_hdr.sh_entsize = 4; | |
252b5132 RH |
2372 | } |
2373 | } | |
2374 | ||
12d0ee4a | 2375 | if (htab->sgotplt) |
252b5132 | 2376 | { |
12d0ee4a AM |
2377 | /* Fill in the first three entries in the global offset table. */ |
2378 | if (htab->sgotplt->_raw_size > 0) | |
2379 | { | |
2380 | bfd_put_32 (output_bfd, | |
2381 | (sdyn == NULL ? (bfd_vma) 0 | |
2382 | : sdyn->output_section->vma + sdyn->output_offset), | |
2383 | htab->sgotplt->contents); | |
2384 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 4); | |
2385 | bfd_put_32 (output_bfd, (bfd_vma) 0, htab->sgotplt->contents + 8); | |
2386 | } | |
252b5132 | 2387 | |
12d0ee4a AM |
2388 | elf_section_data (htab->sgotplt->output_section)->this_hdr.sh_entsize = 4; |
2389 | } | |
252b5132 RH |
2390 | return true; |
2391 | } | |
2392 | ||
2393 | #define TARGET_LITTLE_SYM bfd_elf32_i386_vec | |
2394 | #define TARGET_LITTLE_NAME "elf32-i386" | |
2395 | #define ELF_ARCH bfd_arch_i386 | |
2396 | #define ELF_MACHINE_CODE EM_386 | |
2397 | #define ELF_MAXPAGESIZE 0x1000 | |
252b5132 RH |
2398 | |
2399 | #define elf_backend_can_gc_sections 1 | |
2400 | #define elf_backend_want_got_plt 1 | |
2401 | #define elf_backend_plt_readonly 1 | |
2402 | #define elf_backend_want_plt_sym 0 | |
2403 | #define elf_backend_got_header_size 12 | |
2404 | #define elf_backend_plt_header_size PLT_ENTRY_SIZE | |
2405 | ||
dd5724d5 AM |
2406 | #define elf_info_to_howto elf_i386_info_to_howto |
2407 | #define elf_info_to_howto_rel elf_i386_info_to_howto_rel | |
2408 | ||
dd5724d5 AM |
2409 | #define bfd_elf32_bfd_is_local_label_name elf_i386_is_local_label_name |
2410 | #define bfd_elf32_bfd_link_hash_table_create elf_i386_link_hash_table_create | |
2411 | #define bfd_elf32_bfd_reloc_type_lookup elf_i386_reloc_type_lookup | |
2412 | ||
2413 | #define elf_backend_adjust_dynamic_symbol elf_i386_adjust_dynamic_symbol | |
ebe50bae | 2414 | #define elf_backend_copy_indirect_symbol elf_i386_copy_indirect_symbol |
dd5724d5 | 2415 | #define elf_backend_check_relocs elf_i386_check_relocs |
6725bdbf | 2416 | #define elf_backend_create_dynamic_sections elf_i386_create_dynamic_sections |
dd5724d5 AM |
2417 | #define elf_backend_finish_dynamic_sections elf_i386_finish_dynamic_sections |
2418 | #define elf_backend_finish_dynamic_symbol elf_i386_finish_dynamic_symbol | |
2419 | #define elf_backend_gc_mark_hook elf_i386_gc_mark_hook | |
2420 | #define elf_backend_gc_sweep_hook elf_i386_gc_sweep_hook | |
2421 | #define elf_backend_relocate_section elf_i386_relocate_section | |
2422 | #define elf_backend_size_dynamic_sections elf_i386_size_dynamic_sections | |
83be169b | 2423 | #define elf_backend_fake_sections elf_i386_fake_sections |
c5fccbec DJ |
2424 | #define elf_backend_grok_prstatus elf_i386_grok_prstatus |
2425 | #define elf_backend_grok_psinfo elf_i386_grok_psinfo | |
db6751f2 | 2426 | #define elf_backend_reloc_type_class elf_i386_reloc_type_class |
dd5724d5 | 2427 | |
252b5132 | 2428 | #include "elf32-target.h" |