Commit | Line | Data |
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90ace9e9 | 1 | /* VAX series support for 32-bit ELF |
b2a8e766 | 2 | Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
aa820537 | 3 | 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
90ace9e9 JT |
4 | Contributed by Matt Thomas <matt@3am-software.com>. |
5 | ||
ae9a127f | 6 | This file is part of BFD, the Binary File Descriptor library. |
90ace9e9 | 7 | |
ae9a127f NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
ae9a127f | 11 | (at your option) any later version. |
90ace9e9 | 12 | |
ae9a127f NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
90ace9e9 | 17 | |
ae9a127f NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
90ace9e9 | 22 | |
90ace9e9 | 23 | #include "sysdep.h" |
3db64b00 | 24 | #include "bfd.h" |
90ace9e9 JT |
25 | #include "bfdlink.h" |
26 | #include "libbfd.h" | |
27 | #include "elf-bfd.h" | |
28 | #include "elf/vax.h" | |
29 | ||
ce71b576 NC |
30 | static reloc_howto_type *reloc_type_lookup (bfd *, bfd_reloc_code_real_type); |
31 | static void rtype_to_howto (bfd *, arelent *, Elf_Internal_Rela *); | |
32 | static struct bfd_hash_entry *elf_vax_link_hash_newfunc (struct bfd_hash_entry *, | |
33 | struct bfd_hash_table *, | |
34 | const char *); | |
35 | static struct bfd_link_hash_table *elf_vax_link_hash_table_create (bfd *); | |
36 | static bfd_boolean elf_vax_check_relocs (bfd *, struct bfd_link_info *, | |
37 | asection *, const Elf_Internal_Rela *); | |
ce71b576 NC |
38 | static bfd_boolean elf_vax_adjust_dynamic_symbol (struct bfd_link_info *, |
39 | struct elf_link_hash_entry *); | |
40 | static bfd_boolean elf_vax_size_dynamic_sections (bfd *, struct bfd_link_info *); | |
41 | static bfd_boolean elf_vax_relocate_section (bfd *, struct bfd_link_info *, | |
42 | bfd *, asection *, bfd_byte *, | |
43 | Elf_Internal_Rela *, | |
44 | Elf_Internal_Sym *, asection **); | |
45 | static bfd_boolean elf_vax_finish_dynamic_symbol (bfd *, struct bfd_link_info *, | |
46 | struct elf_link_hash_entry *, | |
47 | Elf_Internal_Sym *); | |
48 | static bfd_boolean elf_vax_finish_dynamic_sections (bfd *, | |
49 | struct bfd_link_info *); | |
6db7e006 MR |
50 | static bfd_vma elf_vax_plt_sym_val (bfd_vma, const asection *, |
51 | const arelent *); | |
ce71b576 NC |
52 | |
53 | static bfd_boolean elf32_vax_set_private_flags (bfd *, flagword); | |
54 | static bfd_boolean elf32_vax_merge_private_bfd_data (bfd *, bfd *); | |
55 | static bfd_boolean elf32_vax_print_private_bfd_data (bfd *, PTR); | |
90ace9e9 JT |
56 | |
57 | static reloc_howto_type howto_table[] = { | |
58 | HOWTO (R_VAX_NONE, /* type */ | |
59 | 0, /* rightshift */ | |
60 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
61 | 0, /* bitsize */ | |
b34976b6 | 62 | FALSE, /* pc_relative */ |
90ace9e9 JT |
63 | 0, /* bitpos */ |
64 | complain_overflow_dont, /* complain_on_overflow */ | |
65 | bfd_elf_generic_reloc, /* special_function */ | |
66 | "R_VAX_NONE", /* name */ | |
b34976b6 | 67 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
68 | 0, /* src_mask */ |
69 | 0x00000000, /* dst_mask */ | |
b34976b6 | 70 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
71 | |
72 | HOWTO (R_VAX_32, /* type */ | |
73 | 0, /* rightshift */ | |
74 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
75 | 32, /* bitsize */ | |
b34976b6 | 76 | FALSE, /* pc_relative */ |
90ace9e9 JT |
77 | 0, /* bitpos */ |
78 | complain_overflow_bitfield, /* complain_on_overflow */ | |
79 | bfd_elf_generic_reloc, /* special_function */ | |
80 | "R_VAX_32", /* name */ | |
b34976b6 | 81 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
82 | 0, /* src_mask */ |
83 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 84 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
85 | |
86 | HOWTO (R_VAX_16, /* type */ | |
87 | 0, /* rightshift */ | |
88 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
89 | 16, /* bitsize */ | |
b34976b6 | 90 | FALSE, /* pc_relative */ |
90ace9e9 JT |
91 | 0, /* bitpos */ |
92 | complain_overflow_bitfield, /* complain_on_overflow */ | |
93 | bfd_elf_generic_reloc, /* special_function */ | |
94 | "R_VAX_16", /* name */ | |
b34976b6 | 95 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
96 | 0, /* src_mask */ |
97 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 98 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
99 | |
100 | HOWTO (R_VAX_8, /* type */ | |
101 | 0, /* rightshift */ | |
102 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
103 | 8, /* bitsize */ | |
b34976b6 | 104 | FALSE, /* pc_relative */ |
90ace9e9 JT |
105 | 0, /* bitpos */ |
106 | complain_overflow_bitfield, /* complain_on_overflow */ | |
107 | bfd_elf_generic_reloc, /* special_function */ | |
108 | "R_VAX_8", /* name */ | |
b34976b6 | 109 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
110 | 0, /* src_mask */ |
111 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 112 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
113 | |
114 | HOWTO (R_VAX_PC32, /* type */ | |
115 | 0, /* rightshift */ | |
116 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
117 | 32, /* bitsize */ | |
b34976b6 | 118 | TRUE, /* pc_relative */ |
90ace9e9 JT |
119 | 0, /* bitpos */ |
120 | complain_overflow_bitfield, /* complain_on_overflow */ | |
121 | bfd_elf_generic_reloc, /* special_function */ | |
122 | "R_VAX_PC32", /* name */ | |
b34976b6 | 123 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
124 | 0, /* src_mask */ |
125 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 126 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
127 | |
128 | HOWTO (R_VAX_PC16, /* type */ | |
129 | 0, /* rightshift */ | |
130 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
131 | 16, /* bitsize */ | |
b34976b6 | 132 | TRUE, /* pc_relative */ |
90ace9e9 JT |
133 | 0, /* bitpos */ |
134 | complain_overflow_signed, /* complain_on_overflow */ | |
135 | bfd_elf_generic_reloc, /* special_function */ | |
136 | "R_VAX_PC16", /* name */ | |
b34976b6 | 137 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
138 | 0, /* src_mask */ |
139 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 140 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
141 | |
142 | HOWTO (R_VAX_PC8, /* type */ | |
143 | 0, /* rightshift */ | |
144 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
145 | 8, /* bitsize */ | |
b34976b6 | 146 | TRUE, /* pc_relative */ |
90ace9e9 JT |
147 | 0, /* bitpos */ |
148 | complain_overflow_signed, /* complain_on_overflow */ | |
149 | bfd_elf_generic_reloc, /* special_function */ | |
150 | "R_VAX_PC8", /* name */ | |
b34976b6 | 151 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
152 | 0, /* src_mask */ |
153 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 154 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
155 | |
156 | HOWTO (R_VAX_GOT32, /* type */ | |
157 | 0, /* rightshift */ | |
158 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
159 | 32, /* bitsize */ | |
b34976b6 | 160 | TRUE, /* pc_relative */ |
90ace9e9 JT |
161 | 0, /* bitpos */ |
162 | complain_overflow_bitfield, /* complain_on_overflow */ | |
163 | bfd_elf_generic_reloc, /* special_function */ | |
164 | "R_VAX_GOT32", /* name */ | |
b34976b6 | 165 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
166 | 0, /* src_mask */ |
167 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 168 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
169 | |
170 | EMPTY_HOWTO (-1), | |
171 | EMPTY_HOWTO (-1), | |
172 | EMPTY_HOWTO (-1), | |
173 | EMPTY_HOWTO (-1), | |
174 | EMPTY_HOWTO (-1), | |
175 | ||
176 | HOWTO (R_VAX_PLT32, /* type */ | |
177 | 0, /* rightshift */ | |
178 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
179 | 32, /* bitsize */ | |
b34976b6 | 180 | TRUE, /* pc_relative */ |
90ace9e9 JT |
181 | 0, /* bitpos */ |
182 | complain_overflow_bitfield, /* complain_on_overflow */ | |
183 | bfd_elf_generic_reloc, /* special_function */ | |
184 | "R_VAX_PLT32", /* name */ | |
b34976b6 | 185 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
186 | 0, /* src_mask */ |
187 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 188 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
189 | |
190 | EMPTY_HOWTO (-1), | |
191 | EMPTY_HOWTO (-1), | |
192 | EMPTY_HOWTO (-1), | |
193 | EMPTY_HOWTO (-1), | |
194 | EMPTY_HOWTO (-1), | |
195 | ||
196 | HOWTO (R_VAX_COPY, /* type */ | |
197 | 0, /* rightshift */ | |
198 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
199 | 0, /* bitsize */ | |
b34976b6 | 200 | FALSE, /* pc_relative */ |
90ace9e9 JT |
201 | 0, /* bitpos */ |
202 | complain_overflow_dont, /* complain_on_overflow */ | |
203 | bfd_elf_generic_reloc, /* special_function */ | |
204 | "R_VAX_COPY", /* name */ | |
b34976b6 | 205 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
206 | 0, /* src_mask */ |
207 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 208 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
209 | |
210 | HOWTO (R_VAX_GLOB_DAT, /* type */ | |
211 | 0, /* rightshift */ | |
212 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
213 | 32, /* bitsize */ | |
b34976b6 | 214 | FALSE, /* pc_relative */ |
90ace9e9 JT |
215 | 0, /* bitpos */ |
216 | complain_overflow_dont, /* complain_on_overflow */ | |
217 | bfd_elf_generic_reloc, /* special_function */ | |
218 | "R_VAX_GLOB_DAT", /* name */ | |
b34976b6 | 219 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
220 | 0, /* src_mask */ |
221 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 222 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
223 | |
224 | HOWTO (R_VAX_JMP_SLOT, /* type */ | |
225 | 0, /* rightshift */ | |
226 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
227 | 32, /* bitsize */ | |
b34976b6 | 228 | FALSE, /* pc_relative */ |
90ace9e9 JT |
229 | 0, /* bitpos */ |
230 | complain_overflow_dont, /* complain_on_overflow */ | |
231 | bfd_elf_generic_reloc, /* special_function */ | |
232 | "R_VAX_JMP_SLOT", /* name */ | |
b34976b6 | 233 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
234 | 0, /* src_mask */ |
235 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 236 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
237 | |
238 | HOWTO (R_VAX_RELATIVE, /* type */ | |
239 | 0, /* rightshift */ | |
240 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
241 | 32, /* bitsize */ | |
b34976b6 | 242 | FALSE, /* pc_relative */ |
90ace9e9 JT |
243 | 0, /* bitpos */ |
244 | complain_overflow_dont, /* complain_on_overflow */ | |
245 | bfd_elf_generic_reloc, /* special_function */ | |
246 | "R_VAX_RELATIVE", /* name */ | |
b34976b6 | 247 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
248 | 0, /* src_mask */ |
249 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 250 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
251 | |
252 | /* GNU extension to record C++ vtable hierarchy */ | |
253 | HOWTO (R_VAX_GNU_VTINHERIT, /* type */ | |
254 | 0, /* rightshift */ | |
255 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
256 | 0, /* bitsize */ | |
b34976b6 | 257 | FALSE, /* pc_relative */ |
90ace9e9 JT |
258 | 0, /* bitpos */ |
259 | complain_overflow_dont, /* complain_on_overflow */ | |
260 | NULL, /* special_function */ | |
261 | "R_VAX_GNU_VTINHERIT", /* name */ | |
b34976b6 | 262 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
263 | 0, /* src_mask */ |
264 | 0, /* dst_mask */ | |
b34976b6 | 265 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
266 | |
267 | /* GNU extension to record C++ vtable member usage */ | |
268 | HOWTO (R_VAX_GNU_VTENTRY, /* type */ | |
269 | 0, /* rightshift */ | |
270 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
271 | 0, /* bitsize */ | |
b34976b6 | 272 | FALSE, /* pc_relative */ |
90ace9e9 JT |
273 | 0, /* bitpos */ |
274 | complain_overflow_dont, /* complain_on_overflow */ | |
275 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
276 | "R_VAX_GNU_VTENTRY", /* name */ | |
b34976b6 | 277 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
278 | 0, /* src_mask */ |
279 | 0, /* dst_mask */ | |
b34976b6 | 280 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
281 | }; |
282 | ||
283 | static void | |
ce71b576 NC |
284 | rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
285 | Elf_Internal_Rela *dst) | |
90ace9e9 JT |
286 | { |
287 | BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_VAX_max); | |
288 | cache_ptr->howto = &howto_table[ELF32_R_TYPE(dst->r_info)]; | |
289 | } | |
290 | ||
291 | #define elf_info_to_howto rtype_to_howto | |
292 | ||
293 | static const struct | |
294 | { | |
295 | bfd_reloc_code_real_type bfd_val; | |
296 | int elf_val; | |
297 | } reloc_map[] = { | |
298 | { BFD_RELOC_NONE, R_VAX_NONE }, | |
299 | { BFD_RELOC_32, R_VAX_32 }, | |
300 | { BFD_RELOC_16, R_VAX_16 }, | |
301 | { BFD_RELOC_8, R_VAX_8 }, | |
302 | { BFD_RELOC_32_PCREL, R_VAX_PC32 }, | |
303 | { BFD_RELOC_16_PCREL, R_VAX_PC16 }, | |
304 | { BFD_RELOC_8_PCREL, R_VAX_PC8 }, | |
305 | { BFD_RELOC_32_GOT_PCREL, R_VAX_GOT32 }, | |
306 | { BFD_RELOC_32_PLT_PCREL, R_VAX_PLT32 }, | |
307 | { BFD_RELOC_NONE, R_VAX_COPY }, | |
308 | { BFD_RELOC_VAX_GLOB_DAT, R_VAX_GLOB_DAT }, | |
309 | { BFD_RELOC_VAX_JMP_SLOT, R_VAX_JMP_SLOT }, | |
310 | { BFD_RELOC_VAX_RELATIVE, R_VAX_RELATIVE }, | |
311 | { BFD_RELOC_CTOR, R_VAX_32 }, | |
312 | { BFD_RELOC_VTABLE_INHERIT, R_VAX_GNU_VTINHERIT }, | |
313 | { BFD_RELOC_VTABLE_ENTRY, R_VAX_GNU_VTENTRY }, | |
314 | }; | |
315 | ||
316 | static reloc_howto_type * | |
ce71b576 | 317 | reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code) |
90ace9e9 JT |
318 | { |
319 | unsigned int i; | |
320 | for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++) | |
321 | { | |
322 | if (reloc_map[i].bfd_val == code) | |
323 | return &howto_table[reloc_map[i].elf_val]; | |
324 | } | |
325 | return 0; | |
326 | } | |
327 | ||
157090f7 AM |
328 | static reloc_howto_type * |
329 | reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
330 | const char *r_name) | |
331 | { | |
332 | unsigned int i; | |
333 | ||
334 | for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++) | |
335 | if (howto_table[i].name != NULL | |
336 | && strcasecmp (howto_table[i].name, r_name) == 0) | |
337 | return &howto_table[i]; | |
338 | ||
339 | return NULL; | |
340 | } | |
341 | ||
90ace9e9 | 342 | #define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup |
157090f7 | 343 | #define bfd_elf32_bfd_reloc_name_lookup reloc_name_lookup |
90ace9e9 JT |
344 | #define ELF_ARCH bfd_arch_vax |
345 | /* end code generated by elf.el */ | |
90ace9e9 JT |
346 | \f |
347 | /* Functions for the VAX ELF linker. */ | |
348 | ||
349 | /* The name of the dynamic interpreter. This is put in the .interp | |
350 | section. */ | |
351 | ||
352 | #define ELF_DYNAMIC_INTERPRETER "/usr/libexec/ld.elf_so" | |
353 | ||
354 | /* The size in bytes of an entry in the procedure linkage table. */ | |
355 | ||
356 | #define PLT_ENTRY_SIZE 12 | |
357 | ||
358 | /* The first entry in a procedure linkage table looks like this. See | |
359 | the SVR4 ABI VAX supplement to see how this works. */ | |
360 | ||
361 | static const bfd_byte elf_vax_plt0_entry[PLT_ENTRY_SIZE] = | |
362 | { | |
363 | 0xdd, 0xef, /* pushl l^ */ | |
364 | 0, 0, 0, 0, /* offset to .plt.got + 4 */ | |
365 | 0x17, 0xff, /* jmp @L^(pc) */ | |
366 | 0, 0, 0, 0, /* offset to .plt.got + 8 */ | |
367 | }; | |
368 | ||
369 | /* Subsequent entries in a procedure linkage table look like this. */ | |
370 | ||
371 | static const bfd_byte elf_vax_plt_entry[PLT_ENTRY_SIZE] = | |
372 | { | |
6c4fb25a | 373 | 0xfc, 0x0f, /* .word ^M<r11:r2> */ |
71f136d6 | 374 | 0x16, 0xef, /* jsb L^(pc) */ |
90ace9e9 JT |
375 | 0, 0, 0, 0, /* replaced with offset to start of .plt */ |
376 | 0, 0, 0, 0, /* index into .rela.plt */ | |
377 | }; | |
378 | ||
379 | /* The VAX linker needs to keep track of the number of relocs that it | |
380 | decides to copy in check_relocs for each symbol. This is so that it | |
381 | can discard PC relative relocs if it doesn't need them when linking | |
382 | with -Bsymbolic. We store the information in a field extending the | |
383 | regular ELF linker hash table. */ | |
384 | ||
385 | /* This structure keeps track of the number of PC relative relocs we have | |
386 | copied for a given symbol. */ | |
387 | ||
388 | struct elf_vax_pcrel_relocs_copied | |
389 | { | |
390 | /* Next section. */ | |
391 | struct elf_vax_pcrel_relocs_copied *next; | |
392 | /* A section in dynobj. */ | |
393 | asection *section; | |
394 | /* Number of relocs copied in this section. */ | |
395 | bfd_size_type count; | |
396 | }; | |
397 | ||
398 | /* VAX ELF linker hash entry. */ | |
399 | ||
400 | struct elf_vax_link_hash_entry | |
401 | { | |
402 | struct elf_link_hash_entry root; | |
403 | ||
404 | /* Number of PC relative relocs copied for this symbol. */ | |
405 | struct elf_vax_pcrel_relocs_copied *pcrel_relocs_copied; | |
406 | ||
407 | bfd_vma got_addend; | |
408 | }; | |
409 | ||
410 | /* VAX ELF linker hash table. */ | |
411 | ||
412 | struct elf_vax_link_hash_table | |
413 | { | |
414 | struct elf_link_hash_table root; | |
415 | }; | |
416 | ||
417 | /* Declare this now that the above structures are defined. */ | |
418 | ||
ce71b576 NC |
419 | static bfd_boolean elf_vax_discard_copies (struct elf_vax_link_hash_entry *, |
420 | PTR); | |
90ace9e9 | 421 | |
b29635ba JT |
422 | /* Declare this now that the above structures are defined. */ |
423 | ||
ce71b576 NC |
424 | static bfd_boolean elf_vax_instantiate_got_entries (struct elf_link_hash_entry *, |
425 | PTR); | |
b29635ba | 426 | |
90ace9e9 JT |
427 | /* Traverse an VAX ELF linker hash table. */ |
428 | ||
429 | #define elf_vax_link_hash_traverse(table, func, info) \ | |
430 | (elf_link_hash_traverse \ | |
431 | (&(table)->root, \ | |
ce71b576 | 432 | (bfd_boolean (*) (struct elf_link_hash_entry *, PTR)) (func), \ |
90ace9e9 JT |
433 | (info))) |
434 | ||
435 | /* Get the VAX ELF linker hash table from a link_info structure. */ | |
436 | ||
ce71b576 | 437 | #define elf_vax_hash_table(p) ((struct elf_vax_link_hash_table *) (p)->hash) |
90ace9e9 JT |
438 | |
439 | /* Create an entry in an VAX ELF linker hash table. */ | |
440 | ||
441 | static struct bfd_hash_entry * | |
ce71b576 NC |
442 | elf_vax_link_hash_newfunc (struct bfd_hash_entry *entry, |
443 | struct bfd_hash_table *table, | |
444 | const char *string) | |
90ace9e9 JT |
445 | { |
446 | struct elf_vax_link_hash_entry *ret = | |
447 | (struct elf_vax_link_hash_entry *) entry; | |
448 | ||
449 | /* Allocate the structure if it has not already been allocated by a | |
450 | subclass. */ | |
ce71b576 | 451 | if (ret == NULL) |
90ace9e9 JT |
452 | ret = ((struct elf_vax_link_hash_entry *) |
453 | bfd_hash_allocate (table, | |
454 | sizeof (struct elf_vax_link_hash_entry))); | |
ce71b576 | 455 | if (ret == NULL) |
90ace9e9 JT |
456 | return (struct bfd_hash_entry *) ret; |
457 | ||
458 | /* Call the allocation method of the superclass. */ | |
459 | ret = ((struct elf_vax_link_hash_entry *) | |
460 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
461 | table, string)); | |
ce71b576 | 462 | if (ret != NULL) |
90ace9e9 JT |
463 | { |
464 | ret->pcrel_relocs_copied = NULL; | |
465 | } | |
466 | ||
467 | return (struct bfd_hash_entry *) ret; | |
468 | } | |
469 | ||
470 | /* Create an VAX ELF linker hash table. */ | |
471 | ||
472 | static struct bfd_link_hash_table * | |
ce71b576 | 473 | elf_vax_link_hash_table_create (bfd *abfd) |
90ace9e9 JT |
474 | { |
475 | struct elf_vax_link_hash_table *ret; | |
476 | bfd_size_type amt = sizeof (struct elf_vax_link_hash_table); | |
477 | ||
ce71b576 NC |
478 | ret = bfd_malloc (amt); |
479 | if (ret == NULL) | |
90ace9e9 JT |
480 | return NULL; |
481 | ||
66eb6687 AM |
482 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
483 | elf_vax_link_hash_newfunc, | |
484 | sizeof (struct elf_vax_link_hash_entry))) | |
90ace9e9 JT |
485 | { |
486 | free (ret); | |
487 | return NULL; | |
488 | } | |
489 | ||
490 | return &ret->root.root; | |
491 | } | |
492 | ||
493 | /* Keep vax-specific flags in the ELF header */ | |
b34976b6 | 494 | static bfd_boolean |
ce71b576 | 495 | elf32_vax_set_private_flags (bfd *abfd, flagword flags) |
90ace9e9 JT |
496 | { |
497 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
498 | elf_flags_init (abfd) = TRUE; |
499 | return TRUE; | |
90ace9e9 JT |
500 | } |
501 | ||
502 | /* Merge backend specific data from an object file to the output | |
503 | object file when linking. */ | |
b34976b6 | 504 | static bfd_boolean |
ce71b576 | 505 | elf32_vax_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
90ace9e9 JT |
506 | { |
507 | flagword out_flags; | |
508 | flagword in_flags; | |
509 | ||
510 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
511 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 512 | return TRUE; |
90ace9e9 JT |
513 | |
514 | in_flags = elf_elfheader (ibfd)->e_flags; | |
515 | out_flags = elf_elfheader (obfd)->e_flags; | |
516 | ||
517 | if (!elf_flags_init (obfd)) | |
518 | { | |
b34976b6 | 519 | elf_flags_init (obfd) = TRUE; |
90ace9e9 JT |
520 | elf_elfheader (obfd)->e_flags = in_flags; |
521 | } | |
522 | ||
b34976b6 | 523 | return TRUE; |
90ace9e9 JT |
524 | } |
525 | ||
526 | /* Display the flags field */ | |
b34976b6 | 527 | static bfd_boolean |
ce71b576 | 528 | elf32_vax_print_private_bfd_data (bfd *abfd, PTR ptr) |
90ace9e9 JT |
529 | { |
530 | FILE *file = (FILE *) ptr; | |
531 | ||
532 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
533 | ||
534 | /* Print normal ELF private data. */ | |
535 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
536 | ||
537 | /* Ignore init flag - it may not be set, despite the flags field containing valid data. */ | |
538 | ||
539 | /* xgettext:c-format */ | |
540 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
541 | ||
179d3252 | 542 | if (elf_elfheader (abfd)->e_flags & EF_VAX_NONPIC) |
90ace9e9 JT |
543 | fprintf (file, _(" [nonpic]")); |
544 | ||
179d3252 | 545 | if (elf_elfheader (abfd)->e_flags & EF_VAX_DFLOAT) |
90ace9e9 JT |
546 | fprintf (file, _(" [d-float]")); |
547 | ||
179d3252 | 548 | if (elf_elfheader (abfd)->e_flags & EF_VAX_GFLOAT) |
90ace9e9 JT |
549 | fprintf (file, _(" [g-float]")); |
550 | ||
551 | fputc ('\n', file); | |
552 | ||
b34976b6 | 553 | return TRUE; |
90ace9e9 JT |
554 | } |
555 | /* Look through the relocs for a section during the first phase, and | |
556 | allocate space in the global offset table or procedure linkage | |
557 | table. */ | |
558 | ||
b34976b6 | 559 | static bfd_boolean |
ce71b576 NC |
560 | elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, |
561 | const Elf_Internal_Rela *relocs) | |
90ace9e9 JT |
562 | { |
563 | bfd *dynobj; | |
564 | Elf_Internal_Shdr *symtab_hdr; | |
565 | struct elf_link_hash_entry **sym_hashes; | |
90ace9e9 JT |
566 | const Elf_Internal_Rela *rel; |
567 | const Elf_Internal_Rela *rel_end; | |
568 | asection *sgot; | |
569 | asection *srelgot; | |
570 | asection *sreloc; | |
571 | ||
1049f94e | 572 | if (info->relocatable) |
b34976b6 | 573 | return TRUE; |
90ace9e9 JT |
574 | |
575 | dynobj = elf_hash_table (info)->dynobj; | |
576 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
577 | sym_hashes = elf_sym_hashes (abfd); | |
90ace9e9 JT |
578 | |
579 | sgot = NULL; | |
580 | srelgot = NULL; | |
581 | sreloc = NULL; | |
582 | ||
583 | rel_end = relocs + sec->reloc_count; | |
584 | for (rel = relocs; rel < rel_end; rel++) | |
585 | { | |
586 | unsigned long r_symndx; | |
587 | struct elf_link_hash_entry *h; | |
588 | ||
589 | r_symndx = ELF32_R_SYM (rel->r_info); | |
590 | ||
591 | if (r_symndx < symtab_hdr->sh_info) | |
592 | h = NULL; | |
593 | else | |
973a3492 L |
594 | { |
595 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
596 | while (h->root.type == bfd_link_hash_indirect | |
597 | || h->root.type == bfd_link_hash_warning) | |
598 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
599 | } | |
90ace9e9 JT |
600 | |
601 | switch (ELF32_R_TYPE (rel->r_info)) | |
602 | { | |
603 | case R_VAX_GOT32: | |
fe723c87 MT |
604 | BFD_ASSERT (h != NULL); |
605 | if (h->forced_local | |
606 | || h == elf_hash_table (info)->hgot | |
607 | || h == elf_hash_table (info)->hplt) | |
90ace9e9 JT |
608 | break; |
609 | ||
7b6021f1 MR |
610 | /* If this is a local symbol, we resolve it directly without |
611 | creating a global offset table entry. */ | |
612 | if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
613 | break; | |
614 | ||
90ace9e9 JT |
615 | /* This symbol requires a global offset table entry. */ |
616 | ||
617 | if (dynobj == NULL) | |
618 | { | |
619 | /* Create the .got section. */ | |
620 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
621 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 622 | return FALSE; |
90ace9e9 JT |
623 | } |
624 | ||
625 | if (sgot == NULL) | |
626 | { | |
627 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
628 | BFD_ASSERT (sgot != NULL); | |
629 | } | |
630 | ||
631 | if (srelgot == NULL | |
632 | && (h != NULL || info->shared)) | |
633 | { | |
634 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
635 | if (srelgot == NULL) | |
636 | { | |
3496cb2a L |
637 | srelgot = bfd_make_section_with_flags (dynobj, |
638 | ".rela.got", | |
639 | (SEC_ALLOC | |
640 | | SEC_LOAD | |
641 | | SEC_HAS_CONTENTS | |
642 | | SEC_IN_MEMORY | |
643 | | SEC_LINKER_CREATED | |
644 | | SEC_READONLY)); | |
90ace9e9 | 645 | if (srelgot == NULL |
90ace9e9 | 646 | || !bfd_set_section_alignment (dynobj, srelgot, 2)) |
b34976b6 | 647 | return FALSE; |
90ace9e9 JT |
648 | } |
649 | } | |
650 | ||
651 | if (h != NULL) | |
652 | { | |
653 | struct elf_vax_link_hash_entry *eh; | |
654 | ||
655 | eh = (struct elf_vax_link_hash_entry *) h; | |
656 | if (h->got.refcount == -1) | |
657 | { | |
658 | h->got.refcount = 1; | |
659 | eh->got_addend = rel->r_addend; | |
90ace9e9 JT |
660 | } |
661 | else | |
662 | { | |
663 | h->got.refcount++; | |
664 | if (eh->got_addend != (bfd_vma) rel->r_addend) | |
665 | (*_bfd_error_handler) | |
fe723c87 MT |
666 | (_("%s: warning: GOT addend of %ld to `%s' does" |
667 | " not match previous GOT addend of %ld"), | |
668 | bfd_get_filename (abfd), rel->r_addend, | |
669 | h->root.root.string, | |
670 | eh->got_addend); | |
cedb70c5 | 671 | |
90ace9e9 JT |
672 | } |
673 | } | |
674 | break; | |
675 | ||
676 | case R_VAX_PLT32: | |
677 | /* This symbol requires a procedure linkage table entry. We | |
678 | actually build the entry in adjust_dynamic_symbol, | |
679 | because this might be a case of linking PIC code which is | |
680 | never referenced by a dynamic object, in which case we | |
681 | don't need to generate a procedure linkage table entry | |
682 | after all. */ | |
683 | ||
684 | /* If this is a local symbol, we resolve it directly without | |
685 | creating a procedure linkage table entry. */ | |
fe723c87 | 686 | BFD_ASSERT (h != NULL); |
7b6021f1 | 687 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT || h->forced_local) |
fe723c87 | 688 | break; |
90ace9e9 | 689 | |
f5385ebf | 690 | h->needs_plt = 1; |
90ace9e9 JT |
691 | if (h->plt.refcount == -1) |
692 | h->plt.refcount = 1; | |
693 | else | |
694 | h->plt.refcount++; | |
695 | break; | |
696 | ||
697 | case R_VAX_PC8: | |
698 | case R_VAX_PC16: | |
699 | case R_VAX_PC32: | |
700 | /* If we are creating a shared library and this is not a local | |
701 | symbol, we need to copy the reloc into the shared library. | |
702 | However when linking with -Bsymbolic and this is a global | |
703 | symbol which is defined in an object we are including in the | |
704 | link (i.e., DEF_REGULAR is set), then we can resolve the | |
705 | reloc directly. At this point we have not seen all the input | |
706 | files, so it is possible that DEF_REGULAR is not set now but | |
707 | will be set later (it is never cleared). We account for that | |
708 | possibility below by storing information in the | |
709 | pcrel_relocs_copied field of the hash table entry. */ | |
710 | if (!(info->shared | |
711 | && (sec->flags & SEC_ALLOC) != 0 | |
712 | && h != NULL | |
713 | && (!info->symbolic | |
f5385ebf | 714 | || !h->def_regular))) |
90ace9e9 | 715 | { |
7b6021f1 MR |
716 | if (h != NULL |
717 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
718 | && !h->forced_local) | |
90ace9e9 JT |
719 | { |
720 | /* Make sure a plt entry is created for this symbol if | |
721 | it turns out to be a function defined by a dynamic | |
722 | object. */ | |
723 | if (h->plt.refcount == -1) | |
724 | h->plt.refcount = 1; | |
725 | else | |
726 | h->plt.refcount++; | |
727 | } | |
728 | break; | |
729 | } | |
7b6021f1 MR |
730 | /* If this is a local symbol, we can resolve it directly. */ |
731 | if (h != NULL | |
732 | && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
733 | || h->forced_local)) | |
fe723c87 MT |
734 | break; |
735 | ||
90ace9e9 JT |
736 | /* Fall through. */ |
737 | case R_VAX_8: | |
738 | case R_VAX_16: | |
739 | case R_VAX_32: | |
7b6021f1 | 740 | if (h != NULL && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
90ace9e9 JT |
741 | { |
742 | /* Make sure a plt entry is created for this symbol if it | |
743 | turns out to be a function defined by a dynamic object. */ | |
744 | if (h->plt.refcount == -1) | |
745 | h->plt.refcount = 1; | |
746 | else | |
747 | h->plt.refcount++; | |
748 | } | |
749 | ||
750 | /* If we are creating a shared library, we need to copy the | |
751 | reloc into the shared library. */ | |
752 | if (info->shared | |
753 | && (sec->flags & SEC_ALLOC) != 0) | |
754 | { | |
755 | /* When creating a shared object, we must copy these | |
756 | reloc types into the output file. We create a reloc | |
757 | section in dynobj and make room for this reloc. */ | |
758 | if (sreloc == NULL) | |
759 | { | |
83bac4b0 NC |
760 | sreloc = _bfd_elf_make_dynamic_reloc_section |
761 | (sec, dynobj, 2, abfd, /*rela?*/ TRUE); | |
90ace9e9 | 762 | |
83bac4b0 | 763 | if (sreloc == NULL) |
b34976b6 | 764 | return FALSE; |
90ace9e9 | 765 | |
90ace9e9 JT |
766 | if (sec->flags & SEC_READONLY) |
767 | info->flags |= DF_TEXTREL; | |
768 | } | |
769 | ||
eea6121a | 770 | sreloc->size += sizeof (Elf32_External_Rela); |
90ace9e9 JT |
771 | |
772 | /* If we are linking with -Bsymbolic, we count the number of | |
773 | PC relative relocations we have entered for this symbol, | |
774 | so that we can discard them again if the symbol is later | |
775 | defined by a regular object. Note that this function is | |
19852a2a | 776 | only called if we are using a vaxelf linker hash table, |
90ace9e9 JT |
777 | which means that h is really a pointer to an |
778 | elf_vax_link_hash_entry. */ | |
779 | if ((ELF32_R_TYPE (rel->r_info) == R_VAX_PC8 | |
ce71b576 NC |
780 | || ELF32_R_TYPE (rel->r_info) == R_VAX_PC16 |
781 | || ELF32_R_TYPE (rel->r_info) == R_VAX_PC32) | |
90ace9e9 JT |
782 | && info->symbolic) |
783 | { | |
784 | struct elf_vax_link_hash_entry *eh; | |
785 | struct elf_vax_pcrel_relocs_copied *p; | |
786 | ||
787 | eh = (struct elf_vax_link_hash_entry *) h; | |
788 | ||
789 | for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) | |
790 | if (p->section == sreloc) | |
791 | break; | |
792 | ||
793 | if (p == NULL) | |
794 | { | |
795 | p = ((struct elf_vax_pcrel_relocs_copied *) | |
796 | bfd_alloc (dynobj, (bfd_size_type) sizeof *p)); | |
797 | if (p == NULL) | |
b34976b6 | 798 | return FALSE; |
90ace9e9 JT |
799 | p->next = eh->pcrel_relocs_copied; |
800 | eh->pcrel_relocs_copied = p; | |
801 | p->section = sreloc; | |
802 | p->count = 0; | |
803 | } | |
804 | ||
805 | ++p->count; | |
806 | } | |
807 | } | |
808 | ||
809 | break; | |
810 | ||
811 | /* This relocation describes the C++ object vtable hierarchy. | |
812 | Reconstruct it for later use during GC. */ | |
813 | case R_VAX_GNU_VTINHERIT: | |
c152c796 | 814 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 815 | return FALSE; |
90ace9e9 JT |
816 | break; |
817 | ||
818 | /* This relocation describes which C++ vtable entries are actually | |
819 | used. Record for later use during GC. */ | |
820 | case R_VAX_GNU_VTENTRY: | |
d17e0c6e JB |
821 | BFD_ASSERT (h != NULL); |
822 | if (h != NULL | |
823 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 824 | return FALSE; |
90ace9e9 JT |
825 | break; |
826 | ||
827 | default: | |
828 | break; | |
829 | } | |
830 | } | |
831 | ||
b34976b6 | 832 | return TRUE; |
90ace9e9 JT |
833 | } |
834 | ||
835 | /* Return the section that should be marked against GC for a given | |
836 | relocation. */ | |
837 | ||
838 | static asection * | |
ce71b576 | 839 | elf_vax_gc_mark_hook (asection *sec, |
07adf181 | 840 | struct bfd_link_info *info, |
ce71b576 NC |
841 | Elf_Internal_Rela *rel, |
842 | struct elf_link_hash_entry *h, | |
843 | Elf_Internal_Sym *sym) | |
90ace9e9 JT |
844 | { |
845 | if (h != NULL) | |
07adf181 AM |
846 | switch (ELF32_R_TYPE (rel->r_info)) |
847 | { | |
848 | case R_VAX_GNU_VTINHERIT: | |
849 | case R_VAX_GNU_VTENTRY: | |
850 | return NULL; | |
851 | } | |
852 | ||
853 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
90ace9e9 JT |
854 | } |
855 | ||
856 | /* Update the got entry reference counts for the section being removed. */ | |
857 | ||
b34976b6 | 858 | static bfd_boolean |
ce71b576 NC |
859 | elf_vax_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, asection *sec, |
860 | const Elf_Internal_Rela *relocs) | |
90ace9e9 JT |
861 | { |
862 | Elf_Internal_Shdr *symtab_hdr; | |
863 | struct elf_link_hash_entry **sym_hashes; | |
90ace9e9 | 864 | const Elf_Internal_Rela *rel, *relend; |
90ace9e9 | 865 | bfd *dynobj; |
90ace9e9 | 866 | |
7dda2462 TG |
867 | if (info->relocatable) |
868 | return TRUE; | |
869 | ||
90ace9e9 JT |
870 | dynobj = elf_hash_table (info)->dynobj; |
871 | if (dynobj == NULL) | |
b34976b6 | 872 | return TRUE; |
90ace9e9 | 873 | |
babfd660 KH |
874 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
875 | sym_hashes = elf_sym_hashes (abfd); | |
876 | ||
90ace9e9 JT |
877 | relend = relocs + sec->reloc_count; |
878 | for (rel = relocs; rel < relend; rel++) | |
879 | { | |
babfd660 | 880 | unsigned long r_symndx; |
3eb128b2 AM |
881 | struct elf_link_hash_entry *h = NULL; |
882 | ||
883 | r_symndx = ELF32_R_SYM (rel->r_info); | |
884 | if (r_symndx >= symtab_hdr->sh_info) | |
885 | { | |
886 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
887 | while (h->root.type == bfd_link_hash_indirect | |
888 | || h->root.type == bfd_link_hash_warning) | |
889 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
890 | } | |
babfd660 | 891 | |
90ace9e9 JT |
892 | switch (ELF32_R_TYPE (rel->r_info)) |
893 | { | |
894 | case R_VAX_GOT32: | |
3eb128b2 AM |
895 | if (h != NULL && h->got.refcount > 0) |
896 | --h->got.refcount; | |
90ace9e9 JT |
897 | break; |
898 | ||
899 | case R_VAX_PLT32: | |
900 | case R_VAX_PC8: | |
901 | case R_VAX_PC16: | |
902 | case R_VAX_PC32: | |
903 | case R_VAX_8: | |
904 | case R_VAX_16: | |
905 | case R_VAX_32: | |
3eb128b2 AM |
906 | if (h != NULL && h->plt.refcount > 0) |
907 | --h->plt.refcount; | |
90ace9e9 JT |
908 | break; |
909 | ||
910 | default: | |
911 | break; | |
912 | } | |
913 | } | |
914 | ||
b34976b6 | 915 | return TRUE; |
90ace9e9 JT |
916 | } |
917 | ||
918 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
919 | regular object. The current definition is in some section of the | |
920 | dynamic object, but we're not including those sections. We have to | |
921 | change the definition to something the rest of the link can | |
922 | understand. */ | |
923 | ||
b34976b6 | 924 | static bfd_boolean |
90ace9e9 JT |
925 | elf_vax_adjust_dynamic_symbol (info, h) |
926 | struct bfd_link_info *info; | |
927 | struct elf_link_hash_entry *h; | |
928 | { | |
929 | bfd *dynobj; | |
930 | asection *s; | |
90ace9e9 JT |
931 | |
932 | dynobj = elf_hash_table (info)->dynobj; | |
933 | ||
934 | /* Make sure we know what is going on here. */ | |
935 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 936 | && (h->needs_plt |
f6e332e6 | 937 | || h->u.weakdef != NULL |
f5385ebf AM |
938 | || (h->def_dynamic |
939 | && h->ref_regular | |
940 | && !h->def_regular))); | |
90ace9e9 JT |
941 | |
942 | /* If this is a function, put it in the procedure linkage table. We | |
943 | will fill in the contents of the procedure linkage table later, | |
944 | when we know the address of the .got section. */ | |
945 | if (h->type == STT_FUNC | |
f5385ebf | 946 | || h->needs_plt) |
90ace9e9 JT |
947 | { |
948 | if (! info->shared | |
f5385ebf AM |
949 | && !h->def_dynamic |
950 | && !h->ref_dynamic | |
90ace9e9 JT |
951 | /* We must always create the plt entry if it was referenced |
952 | by a PLTxxO relocation. In this case we already recorded | |
953 | it as a dynamic symbol. */ | |
954 | && h->dynindx == -1) | |
955 | { | |
956 | /* This case can occur if we saw a PLTxx reloc in an input | |
957 | file, but the symbol was never referred to by a dynamic | |
958 | object. In such a case, we don't actually need to build | |
959 | a procedure linkage table, and we can just do a PCxx | |
960 | reloc instead. */ | |
f5385ebf | 961 | BFD_ASSERT (h->needs_plt); |
90ace9e9 | 962 | h->plt.offset = (bfd_vma) -1; |
b34976b6 | 963 | return TRUE; |
90ace9e9 JT |
964 | } |
965 | ||
966 | /* GC may have rendered this entry unused. */ | |
967 | if (h->plt.refcount <= 0) | |
968 | { | |
f5385ebf | 969 | h->needs_plt = 0; |
90ace9e9 | 970 | h->plt.offset = (bfd_vma) -1; |
b34976b6 | 971 | return TRUE; |
90ace9e9 JT |
972 | } |
973 | ||
974 | /* Make sure this symbol is output as a dynamic symbol. */ | |
975 | if (h->dynindx == -1) | |
976 | { | |
c152c796 | 977 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 978 | return FALSE; |
90ace9e9 JT |
979 | } |
980 | ||
981 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
982 | BFD_ASSERT (s != NULL); | |
983 | ||
984 | /* If this is the first .plt entry, make room for the special | |
985 | first entry. */ | |
eea6121a | 986 | if (s->size == 0) |
90ace9e9 | 987 | { |
eea6121a | 988 | s->size += PLT_ENTRY_SIZE; |
90ace9e9 JT |
989 | } |
990 | ||
991 | /* If this symbol is not defined in a regular file, and we are | |
992 | not generating a shared library, then set the symbol to this | |
993 | location in the .plt. This is required to make function | |
994 | pointers compare as equal between the normal executable and | |
995 | the shared library. */ | |
996 | if (!info->shared | |
f5385ebf | 997 | && !h->def_regular) |
90ace9e9 JT |
998 | { |
999 | h->root.u.def.section = s; | |
eea6121a | 1000 | h->root.u.def.value = s->size; |
90ace9e9 JT |
1001 | } |
1002 | ||
eea6121a | 1003 | h->plt.offset = s->size; |
90ace9e9 JT |
1004 | |
1005 | /* Make room for this entry. */ | |
eea6121a | 1006 | s->size += PLT_ENTRY_SIZE; |
90ace9e9 JT |
1007 | |
1008 | /* We also need to make an entry in the .got.plt section, which | |
1009 | will be placed in the .got section by the linker script. */ | |
1010 | ||
1011 | s = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1012 | BFD_ASSERT (s != NULL); | |
eea6121a | 1013 | s->size += 4; |
90ace9e9 JT |
1014 | |
1015 | /* We also need to make an entry in the .rela.plt section. */ | |
1016 | ||
1017 | s = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
1018 | BFD_ASSERT (s != NULL); | |
eea6121a | 1019 | s->size += sizeof (Elf32_External_Rela); |
90ace9e9 | 1020 | |
b34976b6 | 1021 | return TRUE; |
90ace9e9 JT |
1022 | } |
1023 | ||
1024 | /* Reinitialize the plt offset now that it is not used as a reference | |
1025 | count any more. */ | |
1026 | h->plt.offset = (bfd_vma) -1; | |
1027 | ||
1028 | /* If this is a weak symbol, and there is a real definition, the | |
1029 | processor independent code will have arranged for us to see the | |
1030 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 1031 | if (h->u.weakdef != NULL) |
90ace9e9 | 1032 | { |
f6e332e6 AM |
1033 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
1034 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1035 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1036 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
b34976b6 | 1037 | return TRUE; |
90ace9e9 JT |
1038 | } |
1039 | ||
1040 | /* This is a reference to a symbol defined by a dynamic object which | |
1041 | is not a function. */ | |
1042 | ||
1043 | /* If we are creating a shared library, we must presume that the | |
1044 | only references to the symbol are via the global offset table. | |
1045 | For such cases we need not do anything here; the relocations will | |
1046 | be handled correctly by relocate_section. */ | |
1047 | if (info->shared) | |
b34976b6 | 1048 | return TRUE; |
90ace9e9 | 1049 | |
909272ee AM |
1050 | if (h->size == 0) |
1051 | { | |
1052 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
1053 | h->root.root.string); | |
1054 | return TRUE; | |
1055 | } | |
1056 | ||
90ace9e9 JT |
1057 | /* We must allocate the symbol in our .dynbss section, which will |
1058 | become part of the .bss section of the executable. There will be | |
1059 | an entry for this symbol in the .dynsym section. The dynamic | |
1060 | object will contain position independent code, so all references | |
1061 | from the dynamic object to this symbol will go through the global | |
1062 | offset table. The dynamic linker will use the .dynsym entry to | |
1063 | determine the address it must put in the global offset table, so | |
1064 | both the dynamic object and the regular object will refer to the | |
1065 | same memory location for the variable. */ | |
1066 | ||
1067 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
1068 | BFD_ASSERT (s != NULL); | |
1069 | ||
1070 | /* We must generate a R_VAX_COPY reloc to tell the dynamic linker to | |
1071 | copy the initial value out of the dynamic object and into the | |
1072 | runtime process image. We need to remember the offset into the | |
1073 | .rela.bss section we are going to use. */ | |
1074 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1075 | { | |
1076 | asection *srel; | |
1077 | ||
1078 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
1079 | BFD_ASSERT (srel != NULL); | |
eea6121a | 1080 | srel->size += sizeof (Elf32_External_Rela); |
f5385ebf | 1081 | h->needs_copy = 1; |
90ace9e9 JT |
1082 | } |
1083 | ||
027297b7 | 1084 | return _bfd_elf_adjust_dynamic_copy (h, s); |
90ace9e9 JT |
1085 | } |
1086 | ||
1087 | /* Set the sizes of the dynamic sections. */ | |
1088 | ||
b34976b6 | 1089 | static bfd_boolean |
ce71b576 | 1090 | elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
90ace9e9 JT |
1091 | { |
1092 | bfd *dynobj; | |
1093 | asection *s; | |
b34976b6 AM |
1094 | bfd_boolean plt; |
1095 | bfd_boolean relocs; | |
1096 | bfd_boolean reltext; | |
90ace9e9 JT |
1097 | |
1098 | dynobj = elf_hash_table (info)->dynobj; | |
1099 | BFD_ASSERT (dynobj != NULL); | |
1100 | ||
1101 | if (elf_hash_table (info)->dynamic_sections_created) | |
1102 | { | |
1103 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 1104 | if (info->executable) |
90ace9e9 JT |
1105 | { |
1106 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
1107 | BFD_ASSERT (s != NULL); | |
eea6121a | 1108 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
90ace9e9 JT |
1109 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
1110 | } | |
1111 | } | |
1112 | else | |
1113 | { | |
1114 | /* We may have created entries in the .rela.got and .got sections. | |
1115 | However, if we are not creating the dynamic sections, we will | |
1116 | not actually use these entries. Reset the size of .rela.got | |
1117 | and .got, which will cause it to get stripped from the output | |
1118 | file below. */ | |
1119 | s = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1120 | if (s != NULL) | |
eea6121a | 1121 | s->size = 0; |
90ace9e9 JT |
1122 | s = bfd_get_section_by_name (dynobj, ".got.plt"); |
1123 | if (s != NULL) | |
eea6121a | 1124 | s->size = 0; |
90ace9e9 JT |
1125 | s = bfd_get_section_by_name (dynobj, ".got"); |
1126 | if (s != NULL) | |
eea6121a | 1127 | s->size = 0; |
90ace9e9 JT |
1128 | } |
1129 | ||
1130 | /* If this is a -Bsymbolic shared link, then we need to discard all PC | |
1131 | relative relocs against symbols defined in a regular object. We | |
1132 | allocated space for them in the check_relocs routine, but we will not | |
1133 | fill them in in the relocate_section routine. */ | |
1134 | if (info->shared && info->symbolic) | |
1135 | elf_vax_link_hash_traverse (elf_vax_hash_table (info), | |
b29635ba | 1136 | elf_vax_discard_copies, |
ce71b576 | 1137 | NULL); |
b29635ba | 1138 | |
b34976b6 | 1139 | /* If this is a -Bsymbolic shared link or a static link, we need to |
b29635ba JT |
1140 | discard all the got entries we've recorded. Otherwise, we need to |
1141 | instantiate (allocate space for them). */ | |
1142 | elf_link_hash_traverse (elf_hash_table (info), | |
1143 | elf_vax_instantiate_got_entries, | |
1144 | (PTR) info); | |
90ace9e9 JT |
1145 | |
1146 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
1147 | determined the sizes of the various dynamic sections. Allocate | |
1148 | memory for them. */ | |
b34976b6 AM |
1149 | plt = FALSE; |
1150 | relocs = FALSE; | |
1151 | reltext = FALSE; | |
90ace9e9 JT |
1152 | for (s = dynobj->sections; s != NULL; s = s->next) |
1153 | { | |
1154 | const char *name; | |
90ace9e9 JT |
1155 | |
1156 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
1157 | continue; | |
1158 | ||
1159 | /* It's OK to base decisions on the section name, because none | |
1160 | of the dynobj section names depend upon the input files. */ | |
1161 | name = bfd_get_section_name (dynobj, s); | |
1162 | ||
90ace9e9 JT |
1163 | if (strcmp (name, ".plt") == 0) |
1164 | { | |
c456f082 AM |
1165 | /* Remember whether there is a PLT. */ |
1166 | plt = s->size != 0; | |
90ace9e9 | 1167 | } |
0112cd26 | 1168 | else if (CONST_STRNEQ (name, ".rela")) |
90ace9e9 | 1169 | { |
c456f082 | 1170 | if (s->size != 0) |
90ace9e9 JT |
1171 | { |
1172 | asection *target; | |
1173 | ||
1174 | /* Remember whether there are any reloc sections other | |
1175 | than .rela.plt. */ | |
1176 | if (strcmp (name, ".rela.plt") != 0) | |
1177 | { | |
1178 | const char *outname; | |
1179 | ||
b34976b6 | 1180 | relocs = TRUE; |
90ace9e9 JT |
1181 | |
1182 | /* If this relocation section applies to a read only | |
1183 | section, then we probably need a DT_TEXTREL | |
1184 | entry. .rela.plt is actually associated with | |
1185 | .got.plt, which is never readonly. */ | |
1186 | outname = bfd_get_section_name (output_bfd, | |
1187 | s->output_section); | |
1188 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
1189 | if (target != NULL | |
1190 | && (target->flags & SEC_READONLY) != 0 | |
1191 | && (target->flags & SEC_ALLOC) != 0) | |
b34976b6 | 1192 | reltext = TRUE; |
90ace9e9 JT |
1193 | } |
1194 | ||
1195 | /* We use the reloc_count field as a counter if we need | |
1196 | to copy relocs into the output file. */ | |
1197 | s->reloc_count = 0; | |
1198 | } | |
1199 | } | |
0112cd26 | 1200 | else if (! CONST_STRNEQ (name, ".got") |
c456f082 | 1201 | && strcmp (name, ".dynbss") != 0) |
90ace9e9 JT |
1202 | { |
1203 | /* It's not one of our sections, so don't allocate space. */ | |
1204 | continue; | |
1205 | } | |
1206 | ||
c456f082 | 1207 | if (s->size == 0) |
90ace9e9 | 1208 | { |
c456f082 AM |
1209 | /* If we don't need this section, strip it from the |
1210 | output file. This is mostly to handle .rela.bss and | |
1211 | .rela.plt. We must create both sections in | |
1212 | create_dynamic_sections, because they must be created | |
1213 | before the linker maps input sections to output | |
1214 | sections. The linker does that before | |
1215 | adjust_dynamic_symbol is called, and it is that | |
1216 | function which decides whether anything needs to go | |
1217 | into these sections. */ | |
8423293d | 1218 | s->flags |= SEC_EXCLUDE; |
90ace9e9 JT |
1219 | continue; |
1220 | } | |
1221 | ||
c456f082 AM |
1222 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
1223 | continue; | |
1224 | ||
90ace9e9 | 1225 | /* Allocate memory for the section contents. */ |
eea6121a | 1226 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->size); |
c456f082 | 1227 | if (s->contents == NULL) |
b34976b6 | 1228 | return FALSE; |
90ace9e9 JT |
1229 | } |
1230 | ||
1231 | if (elf_hash_table (info)->dynamic_sections_created) | |
1232 | { | |
1233 | /* Add some entries to the .dynamic section. We fill in the | |
1234 | values later, in elf_vax_finish_dynamic_sections, but we | |
1235 | must add the entries now so that we get the correct size for | |
1236 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1237 | dynamic linker and used by the debugger. */ | |
1238 | #define add_dynamic_entry(TAG, VAL) \ | |
5a580b3a | 1239 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
90ace9e9 JT |
1240 | |
1241 | if (!info->shared) | |
1242 | { | |
1243 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
b34976b6 | 1244 | return FALSE; |
90ace9e9 JT |
1245 | } |
1246 | ||
1247 | if (plt) | |
1248 | { | |
1249 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
1250 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
1251 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
1252 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 1253 | return FALSE; |
90ace9e9 JT |
1254 | } |
1255 | ||
1256 | if (relocs) | |
1257 | { | |
1258 | if (!add_dynamic_entry (DT_RELA, 0) | |
1259 | || !add_dynamic_entry (DT_RELASZ, 0) | |
1260 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 1261 | return FALSE; |
90ace9e9 JT |
1262 | } |
1263 | ||
1264 | if (reltext || (info->flags & DF_TEXTREL) != 0) | |
1265 | { | |
1266 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 1267 | return FALSE; |
90ace9e9 JT |
1268 | } |
1269 | } | |
1270 | #undef add_dynamic_entry | |
1271 | ||
b34976b6 | 1272 | return TRUE; |
90ace9e9 JT |
1273 | } |
1274 | ||
1275 | /* This function is called via elf_vax_link_hash_traverse if we are | |
1276 | creating a shared object with -Bsymbolic. It discards the space | |
1277 | allocated to copy PC relative relocs against symbols which are defined | |
1278 | in regular objects. We allocated space for them in the check_relocs | |
1279 | routine, but we won't fill them in in the relocate_section routine. */ | |
1280 | ||
b34976b6 | 1281 | static bfd_boolean |
ce71b576 NC |
1282 | elf_vax_discard_copies (struct elf_vax_link_hash_entry *h, |
1283 | PTR ignore ATTRIBUTE_UNUSED) | |
90ace9e9 JT |
1284 | { |
1285 | struct elf_vax_pcrel_relocs_copied *s; | |
1286 | ||
1287 | if (h->root.root.type == bfd_link_hash_warning) | |
1288 | h = (struct elf_vax_link_hash_entry *) h->root.root.u.i.link; | |
1289 | ||
1290 | /* We only discard relocs for symbols defined in a regular object. */ | |
f5385ebf | 1291 | if (!h->root.def_regular) |
b34976b6 | 1292 | return TRUE; |
90ace9e9 JT |
1293 | |
1294 | for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) | |
eea6121a | 1295 | s->section->size -= s->count * sizeof (Elf32_External_Rela); |
90ace9e9 | 1296 | |
b34976b6 | 1297 | return TRUE; |
90ace9e9 JT |
1298 | } |
1299 | ||
b29635ba JT |
1300 | /* This function is called via elf_link_hash_traverse. It looks for entries |
1301 | that have GOT or PLT (.GOT) references. If creating a static object or a | |
1302 | shared object with -Bsymbolic, it resets the reference count back to 0 | |
1303 | and sets the offset to -1 so normal PC32 relocation will be done. If | |
1304 | creating a shared object or executable, space in the .got and .rela.got | |
1305 | will be reserved for the symbol. */ | |
1306 | ||
b34976b6 | 1307 | static bfd_boolean |
ce71b576 | 1308 | elf_vax_instantiate_got_entries (struct elf_link_hash_entry *h, PTR infoptr) |
b29635ba JT |
1309 | { |
1310 | struct bfd_link_info *info = (struct bfd_link_info *) infoptr; | |
1311 | bfd *dynobj; | |
1312 | asection *sgot; | |
1313 | asection *srelgot; | |
b34976b6 | 1314 | |
b29635ba JT |
1315 | /* We don't care about non-GOT (and non-PLT) entries. */ |
1316 | if (h->got.refcount <= 0 && h->plt.refcount <= 0) | |
b34976b6 | 1317 | return TRUE; |
b29635ba JT |
1318 | |
1319 | dynobj = elf_hash_table (info)->dynobj; | |
1320 | if (dynobj == NULL) | |
b34976b6 | 1321 | return TRUE; |
b29635ba JT |
1322 | |
1323 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1324 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1325 | ||
1326 | if (!elf_hash_table (info)->dynamic_sections_created | |
fe723c87 MT |
1327 | || (info->shared && info->symbolic) |
1328 | || h->forced_local) | |
b29635ba JT |
1329 | { |
1330 | h->got.refcount = 0; | |
1331 | h->got.offset = (bfd_vma) -1; | |
1332 | h->plt.refcount = 0; | |
1333 | h->plt.offset = (bfd_vma) -1; | |
1334 | } | |
1335 | else if (h->got.refcount > 0) | |
1336 | { | |
886815b2 MR |
1337 | bfd_boolean dyn; |
1338 | ||
b29635ba JT |
1339 | /* Make sure this symbol is output as a dynamic symbol. */ |
1340 | if (h->dynindx == -1) | |
1341 | { | |
c152c796 | 1342 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1343 | return FALSE; |
b29635ba JT |
1344 | } |
1345 | ||
886815b2 | 1346 | dyn = elf_hash_table (info)->dynamic_sections_created; |
b29635ba | 1347 | /* Allocate space in the .got and .rela.got sections. */ |
886815b2 MR |
1348 | if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
1349 | && (info->shared | |
1350 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
1351 | { | |
1352 | sgot->size += 4; | |
1353 | srelgot->size += sizeof (Elf32_External_Rela); | |
1354 | } | |
b29635ba JT |
1355 | } |
1356 | ||
b34976b6 | 1357 | return TRUE; |
b29635ba JT |
1358 | } |
1359 | ||
90ace9e9 JT |
1360 | /* Relocate an VAX ELF section. */ |
1361 | ||
b34976b6 | 1362 | static bfd_boolean |
ce71b576 NC |
1363 | elf_vax_relocate_section (bfd *output_bfd, |
1364 | struct bfd_link_info *info, | |
1365 | bfd *input_bfd, | |
1366 | asection *input_section, | |
1367 | bfd_byte *contents, | |
1368 | Elf_Internal_Rela *relocs, | |
1369 | Elf_Internal_Sym *local_syms, | |
1370 | asection **local_sections) | |
90ace9e9 JT |
1371 | { |
1372 | bfd *dynobj; | |
1373 | Elf_Internal_Shdr *symtab_hdr; | |
1374 | struct elf_link_hash_entry **sym_hashes; | |
1375 | bfd_vma *local_got_offsets; | |
1376 | bfd_vma plt_index; | |
1377 | bfd_vma got_offset; | |
1378 | asection *sgot; | |
1379 | asection *splt; | |
1380 | asection *sgotplt; | |
1381 | asection *sreloc; | |
1382 | Elf_Internal_Rela *rel; | |
1383 | Elf_Internal_Rela *relend; | |
1384 | ||
1385 | dynobj = elf_hash_table (info)->dynobj; | |
1386 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1387 | sym_hashes = elf_sym_hashes (input_bfd); | |
1388 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
1389 | ||
1390 | sgot = NULL; | |
1391 | splt = NULL; | |
1392 | sgotplt = NULL; | |
1393 | sreloc = NULL; | |
1394 | ||
1395 | rel = relocs; | |
1396 | relend = relocs + input_section->reloc_count; | |
1397 | for (; rel < relend; rel++) | |
1398 | { | |
1399 | int r_type; | |
1400 | reloc_howto_type *howto; | |
1401 | unsigned long r_symndx; | |
1402 | struct elf_link_hash_entry *h; | |
1403 | Elf_Internal_Sym *sym; | |
1404 | asection *sec; | |
1405 | bfd_vma relocation; | |
1406 | bfd_reloc_status_type r; | |
1407 | ||
1408 | r_type = ELF32_R_TYPE (rel->r_info); | |
1409 | if (r_type < 0 || r_type >= (int) R_VAX_max) | |
1410 | { | |
1411 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1412 | return FALSE; |
90ace9e9 JT |
1413 | } |
1414 | howto = howto_table + r_type; | |
1415 | ||
f0fe0e16 | 1416 | r_symndx = ELF32_R_SYM (rel->r_info); |
90ace9e9 JT |
1417 | h = NULL; |
1418 | sym = NULL; | |
1419 | sec = NULL; | |
1420 | if (r_symndx < symtab_hdr->sh_info) | |
1421 | { | |
1422 | sym = local_syms + r_symndx; | |
1423 | sec = local_sections[r_symndx]; | |
8517fae7 | 1424 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
90ace9e9 JT |
1425 | } |
1426 | else | |
1427 | { | |
560e09e9 NC |
1428 | bfd_boolean unresolved_reloc; |
1429 | bfd_boolean warned; | |
1430 | ||
b2a8e766 AM |
1431 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
1432 | r_symndx, symtab_hdr, sym_hashes, | |
1433 | h, sec, relocation, | |
1434 | unresolved_reloc, warned); | |
ce71b576 | 1435 | |
560e09e9 | 1436 | if ((h->root.type == bfd_link_hash_defined |
90ace9e9 | 1437 | || h->root.type == bfd_link_hash_defweak) |
560e09e9 | 1438 | && ((r_type == R_VAX_PLT32 |
90ace9e9 | 1439 | && h->plt.offset != (bfd_vma) -1 |
fe723c87 | 1440 | && !h->forced_local |
90ace9e9 JT |
1441 | && elf_hash_table (info)->dynamic_sections_created) |
1442 | || (r_type == R_VAX_GOT32 | |
fe723c87 MT |
1443 | && h->got.offset != (bfd_vma) -1 |
1444 | && !h->forced_local | |
90ace9e9 JT |
1445 | && elf_hash_table (info)->dynamic_sections_created |
1446 | && (! info->shared | |
1447 | || (! info->symbolic && h->dynindx != -1) | |
f5385ebf | 1448 | || !h->def_regular)) |
90ace9e9 JT |
1449 | || (info->shared |
1450 | && ((! info->symbolic && h->dynindx != -1) | |
f5385ebf | 1451 | || !h->def_regular) |
90ace9e9 JT |
1452 | && ((input_section->flags & SEC_ALLOC) != 0 |
1453 | /* DWARF will emit R_VAX_32 relocations in its | |
1454 | sections against symbols defined externally | |
1455 | in shared libraries. We can't do anything | |
1456 | with them here. */ | |
1457 | ||
1458 | || ((input_section->flags & SEC_DEBUGGING) != 0 | |
f5385ebf | 1459 | && h->def_dynamic)) |
90ace9e9 JT |
1460 | && (r_type == R_VAX_8 |
1461 | || r_type == R_VAX_16 | |
fe723c87 | 1462 | || r_type == R_VAX_32)))) |
560e09e9 NC |
1463 | /* In these cases, we don't need the relocation |
1464 | value. We check specially because in some | |
1465 | obscure cases sec->output_section will be NULL. */ | |
90ace9e9 | 1466 | relocation = 0; |
90ace9e9 JT |
1467 | } |
1468 | ||
ab96bf03 AM |
1469 | if (sec != NULL && elf_discarded_section (sec)) |
1470 | { | |
1471 | /* For relocs against symbols from removed linkonce sections, | |
1472 | or sections discarded by a linker script, we just want the | |
1473 | section contents zeroed. Avoid any special processing. */ | |
1474 | _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); | |
1475 | rel->r_info = 0; | |
1476 | rel->r_addend = 0; | |
1477 | continue; | |
1478 | } | |
1479 | ||
1480 | if (info->relocatable) | |
1481 | continue; | |
1482 | ||
90ace9e9 JT |
1483 | switch (r_type) |
1484 | { | |
1485 | case R_VAX_GOT32: | |
1486 | /* Relocation is to the address of the entry for this symbol | |
1487 | in the global offset table. */ | |
7b6021f1 MR |
1488 | if (h == NULL |
1489 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
1490 | || h->got.offset == (bfd_vma) -1 | |
1491 | || h->forced_local) | |
90ace9e9 JT |
1492 | break; |
1493 | ||
1494 | /* Relocation is the offset of the entry for this symbol in | |
1495 | the global offset table. */ | |
1496 | ||
1497 | { | |
886815b2 | 1498 | bfd_boolean dyn; |
90ace9e9 JT |
1499 | bfd_vma off; |
1500 | ||
90ace9e9 JT |
1501 | if (sgot == NULL) |
1502 | { | |
1503 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1504 | BFD_ASSERT (sgot != NULL); | |
1505 | } | |
1506 | ||
1507 | BFD_ASSERT (h != NULL); | |
1508 | off = h->got.offset; | |
1509 | BFD_ASSERT (off != (bfd_vma) -1); | |
eea6121a | 1510 | BFD_ASSERT (off < sgot->size); |
90ace9e9 | 1511 | |
886815b2 MR |
1512 | dyn = elf_hash_table (info)->dynamic_sections_created; |
1513 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
1514 | || (info->shared | |
1515 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
90ace9e9 JT |
1516 | { |
1517 | /* The symbol was forced to be local | |
1518 | because of a version file.. We must initialize | |
1519 | this entry in the global offset table. Since | |
1520 | the offset must always be a multiple of 4, we | |
1521 | use the least significant bit to record whether | |
1522 | we have initialized it already. | |
1523 | ||
1524 | When doing a dynamic link, we create a .rela.got | |
1525 | relocation entry to initialize the value. This | |
1526 | is done in the finish_dynamic_symbol routine. */ | |
1527 | if ((off & 1) != 0) | |
1528 | off &= ~1; | |
1529 | else | |
1530 | { | |
1531 | bfd_put_32 (output_bfd, relocation + rel->r_addend, | |
1532 | sgot->contents + off); | |
1533 | h->got.offset |= 1; | |
1534 | } | |
1535 | } else { | |
1536 | bfd_put_32 (output_bfd, rel->r_addend, sgot->contents + off); | |
1537 | } | |
1538 | ||
1539 | relocation = sgot->output_offset + off; | |
b29635ba | 1540 | /* The GOT relocation uses the addend. */ |
90ace9e9 JT |
1541 | rel->r_addend = 0; |
1542 | ||
b29635ba JT |
1543 | /* Change the reference to be indirect. */ |
1544 | contents[rel->r_offset - 1] |= 0x10; | |
1545 | relocation += sgot->output_section->vma; | |
90ace9e9 JT |
1546 | } |
1547 | break; | |
1548 | ||
04981bc1 MR |
1549 | case R_VAX_PC32: |
1550 | /* If we are creating an executable and the function this | |
1551 | reloc refers to is in a shared lib, then we made a PLT | |
1552 | entry for this symbol and need to handle the reloc like | |
1553 | a PLT reloc. */ | |
1554 | if (info->shared) | |
1555 | goto r_vax_pc32_shared; | |
1556 | /* Fall through. */ | |
90ace9e9 JT |
1557 | case R_VAX_PLT32: |
1558 | /* Relocation is to the entry for this symbol in the | |
1559 | procedure linkage table. */ | |
1560 | ||
1561 | /* Resolve a PLTxx reloc against a local symbol directly, | |
1562 | without using the procedure linkage table. */ | |
7b6021f1 MR |
1563 | if (h == NULL |
1564 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
1565 | || h->forced_local) | |
90ace9e9 JT |
1566 | break; |
1567 | ||
1568 | if (h->plt.offset == (bfd_vma) -1 | |
1569 | || !elf_hash_table (info)->dynamic_sections_created) | |
1570 | { | |
1571 | /* We didn't make a PLT entry for this symbol. This | |
1572 | happens when statically linking PIC code, or when | |
1573 | using -Bsymbolic. */ | |
1574 | break; | |
1575 | } | |
1576 | ||
1577 | if (splt == NULL) | |
1578 | { | |
1579 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1580 | BFD_ASSERT (splt != NULL); | |
1581 | } | |
1582 | ||
1583 | if (sgotplt == NULL) | |
1584 | { | |
1585 | sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
d76b263e | 1586 | BFD_ASSERT (sgotplt != NULL); |
90ace9e9 JT |
1587 | } |
1588 | ||
1589 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
1590 | ||
1591 | /* Get the offset into the .got table of the entry that | |
1592 | corresponds to this function. Each .got entry is 4 bytes. | |
1593 | The first two are reserved. */ | |
1594 | got_offset = (plt_index + 3) * 4; | |
1595 | ||
9e86195c | 1596 | /* We want the relocation to point into the .got.plt instead |
cedb70c5 | 1597 | of the plt itself. */ |
90ace9e9 JT |
1598 | relocation = (sgotplt->output_section->vma |
1599 | + sgotplt->output_offset | |
1600 | + got_offset); | |
1601 | contents[rel->r_offset-1] |= 0x10; /* make indirect */ | |
1602 | if (rel->r_addend == 2) | |
1603 | { | |
1604 | h->plt.offset |= 1; | |
1605 | } | |
1606 | else if (rel->r_addend != 0) | |
1607 | (*_bfd_error_handler) | |
1608 | (_("%s: warning: PLT addend of %d to `%s' from %s section ignored"), | |
1609 | bfd_get_filename (input_bfd), rel->r_addend, | |
1610 | h->root.root.string, | |
1611 | bfd_get_section_name (input_bfd, input_section)); | |
1612 | rel->r_addend = 0; | |
1613 | ||
1614 | break; | |
1615 | ||
1616 | case R_VAX_PC8: | |
1617 | case R_VAX_PC16: | |
04981bc1 | 1618 | r_vax_pc32_shared: |
7b6021f1 MR |
1619 | if (h == NULL |
1620 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
1621 | || h->forced_local) | |
90ace9e9 JT |
1622 | break; |
1623 | /* Fall through. */ | |
1624 | case R_VAX_8: | |
1625 | case R_VAX_16: | |
1626 | case R_VAX_32: | |
1627 | if (info->shared | |
1628 | && r_symndx != 0 | |
1629 | && (input_section->flags & SEC_ALLOC) != 0 | |
1630 | && ((r_type != R_VAX_PC8 | |
1631 | && r_type != R_VAX_PC16 | |
1632 | && r_type != R_VAX_PC32) | |
da6bcfca MT |
1633 | || ((input_section->flags & SEC_CODE) |
1634 | && (!info->symbolic | |
1635 | || (!h->def_regular && h->type != STT_SECTION))))) | |
90ace9e9 JT |
1636 | { |
1637 | Elf_Internal_Rela outrel; | |
947216bf | 1638 | bfd_byte *loc; |
b34976b6 | 1639 | bfd_boolean skip, relocate; |
90ace9e9 JT |
1640 | |
1641 | /* When generating a shared object, these relocations | |
1642 | are copied into the output file to be resolved at run | |
1643 | time. */ | |
90ace9e9 JT |
1644 | if (sreloc == NULL) |
1645 | { | |
83bac4b0 NC |
1646 | sreloc = _bfd_elf_get_dynamic_reloc_section |
1647 | (input_bfd, input_section, /*rela?*/ TRUE); | |
1648 | if (sreloc == NULL) | |
b34976b6 | 1649 | return FALSE; |
90ace9e9 JT |
1650 | } |
1651 | ||
b34976b6 AM |
1652 | skip = FALSE; |
1653 | relocate = FALSE; | |
90ace9e9 JT |
1654 | |
1655 | outrel.r_offset = | |
1656 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1657 | rel->r_offset); | |
1658 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 1659 | skip = TRUE; |
90ace9e9 | 1660 | if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 1661 | skip = TRUE, relocate = TRUE; |
90ace9e9 JT |
1662 | outrel.r_offset += (input_section->output_section->vma |
1663 | + input_section->output_offset); | |
1664 | ||
1665 | if (skip) | |
1666 | memset (&outrel, 0, sizeof outrel); | |
1667 | /* h->dynindx may be -1 if the symbol was marked to | |
1668 | become local. */ | |
1669 | else if (h != NULL | |
1670 | && ((! info->symbolic && h->dynindx != -1) | |
f5385ebf | 1671 | || !h->def_regular)) |
90ace9e9 JT |
1672 | { |
1673 | BFD_ASSERT (h->dynindx != -1); | |
1674 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1675 | outrel.r_addend = relocation + rel->r_addend; | |
1676 | } | |
1677 | else | |
1678 | { | |
1679 | if (r_type == R_VAX_32) | |
1680 | { | |
b34976b6 | 1681 | relocate = TRUE; |
90ace9e9 JT |
1682 | outrel.r_info = ELF32_R_INFO (0, R_VAX_RELATIVE); |
1683 | BFD_ASSERT (bfd_get_signed_32 (input_bfd, | |
1684 | &contents[rel->r_offset]) == 0); | |
1685 | outrel.r_addend = relocation + rel->r_addend; | |
1686 | } | |
1687 | else | |
1688 | { | |
1689 | long indx; | |
1690 | ||
8517fae7 | 1691 | if (bfd_is_abs_section (sec)) |
90ace9e9 JT |
1692 | indx = 0; |
1693 | else if (sec == NULL || sec->owner == NULL) | |
1694 | { | |
1695 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1696 | return FALSE; |
90ace9e9 JT |
1697 | } |
1698 | else | |
1699 | { | |
1700 | asection *osec; | |
1701 | ||
74541ad4 AM |
1702 | /* We are turning this relocation into one |
1703 | against a section symbol. It would be | |
1704 | proper to subtract the symbol's value, | |
1705 | osec->vma, from the emitted reloc addend, | |
1706 | but ld.so expects buggy relocs. */ | |
90ace9e9 JT |
1707 | osec = sec->output_section; |
1708 | indx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
1709 | if (indx == 0) |
1710 | { | |
1711 | struct elf_link_hash_table *htab; | |
1712 | htab = elf_hash_table (info); | |
1713 | osec = htab->text_index_section; | |
1714 | indx = elf_section_data (osec)->dynindx; | |
1715 | } | |
1716 | BFD_ASSERT (indx != 0); | |
90ace9e9 JT |
1717 | } |
1718 | ||
1719 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
1720 | outrel.r_addend = relocation + rel->r_addend; | |
1721 | } | |
1722 | } | |
1723 | ||
1724 | if (!strcmp (bfd_get_section_name (input_bfd, input_section), | |
cedb70c5 | 1725 | ".text") != 0 || |
90ace9e9 JT |
1726 | (info->shared |
1727 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_32 | |
1728 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_RELATIVE | |
1729 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_COPY | |
1730 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_JMP_SLOT | |
1731 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_GLOB_DAT)) | |
1732 | { | |
1733 | if (h != NULL) | |
1734 | (*_bfd_error_handler) | |
1735 | (_("%s: warning: %s relocation against symbol `%s' from %s section"), | |
1736 | bfd_get_filename (input_bfd), howto->name, | |
1737 | h->root.root.string, | |
1738 | bfd_get_section_name (input_bfd, input_section)); | |
1739 | else | |
1740 | (*_bfd_error_handler) | |
1741 | (_("%s: warning: %s relocation to 0x%x from %s section"), | |
1742 | bfd_get_filename (input_bfd), howto->name, | |
1743 | outrel.r_addend, | |
1744 | bfd_get_section_name (input_bfd, input_section)); | |
1745 | } | |
947216bf AM |
1746 | loc = sreloc->contents; |
1747 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1748 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
90ace9e9 JT |
1749 | |
1750 | /* This reloc will be computed at runtime, so there's no | |
1751 | need to do anything now, except for R_VAX_32 | |
1752 | relocations that have been turned into | |
1753 | R_VAX_RELATIVE. */ | |
1754 | if (!relocate) | |
1755 | continue; | |
1756 | } | |
1757 | ||
1758 | break; | |
1759 | ||
1760 | case R_VAX_GNU_VTINHERIT: | |
1761 | case R_VAX_GNU_VTENTRY: | |
1762 | /* These are no-ops in the end. */ | |
1763 | continue; | |
1764 | ||
1765 | default: | |
1766 | break; | |
1767 | } | |
1768 | ||
b34976b6 | 1769 | /* VAX PCREL relocations are from the end of relocation, not the start. |
b29635ba JT |
1770 | So subtract the difference from the relocation amount since we can't |
1771 | add it to the offset. */ | |
90ace9e9 | 1772 | if (howto->pc_relative && howto->pcrel_offset) |
b29635ba | 1773 | relocation -= bfd_get_reloc_size(howto); |
90ace9e9 JT |
1774 | |
1775 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1776 | contents, rel->r_offset, | |
1777 | relocation, rel->r_addend); | |
1778 | ||
1779 | if (r != bfd_reloc_ok) | |
1780 | { | |
1781 | switch (r) | |
1782 | { | |
1783 | default: | |
1784 | case bfd_reloc_outofrange: | |
1785 | abort (); | |
1786 | case bfd_reloc_overflow: | |
1787 | { | |
1788 | const char *name; | |
1789 | ||
1790 | if (h != NULL) | |
dfeffb9f | 1791 | name = NULL; |
90ace9e9 JT |
1792 | else |
1793 | { | |
1794 | name = bfd_elf_string_from_elf_section (input_bfd, | |
1795 | symtab_hdr->sh_link, | |
1796 | sym->st_name); | |
1797 | if (name == NULL) | |
b34976b6 | 1798 | return FALSE; |
90ace9e9 JT |
1799 | if (*name == '\0') |
1800 | name = bfd_section_name (input_bfd, sec); | |
1801 | } | |
1802 | if (!(info->callbacks->reloc_overflow | |
dfeffb9f L |
1803 | (info, (h ? &h->root : NULL), name, howto->name, |
1804 | (bfd_vma) 0, input_bfd, input_section, | |
1805 | rel->r_offset))) | |
b34976b6 | 1806 | return FALSE; |
90ace9e9 JT |
1807 | } |
1808 | break; | |
1809 | } | |
1810 | } | |
1811 | } | |
1812 | ||
b34976b6 | 1813 | return TRUE; |
90ace9e9 JT |
1814 | } |
1815 | ||
1816 | /* Finish up dynamic symbol handling. We set the contents of various | |
1817 | dynamic sections here. */ | |
1818 | ||
b34976b6 | 1819 | static bfd_boolean |
ce71b576 NC |
1820 | elf_vax_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, |
1821 | struct elf_link_hash_entry *h, | |
1822 | Elf_Internal_Sym *sym) | |
90ace9e9 JT |
1823 | { |
1824 | bfd *dynobj; | |
1825 | ||
1826 | dynobj = elf_hash_table (info)->dynobj; | |
1827 | ||
1828 | if (h->plt.offset != (bfd_vma) -1) | |
1829 | { | |
1830 | asection *splt; | |
1831 | asection *sgot; | |
1832 | asection *srela; | |
1833 | bfd_vma plt_index; | |
1834 | bfd_vma got_offset; | |
1835 | bfd_vma addend; | |
1836 | Elf_Internal_Rela rela; | |
947216bf | 1837 | bfd_byte *loc; |
90ace9e9 JT |
1838 | |
1839 | /* This symbol has an entry in the procedure linkage table. Set | |
1840 | it up. */ | |
90ace9e9 JT |
1841 | BFD_ASSERT (h->dynindx != -1); |
1842 | ||
1843 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1844 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1845 | srela = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
1846 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); | |
1847 | ||
1848 | addend = 2 * (h->plt.offset & 1); | |
1849 | h->plt.offset &= ~1; | |
1850 | ||
1851 | /* Get the index in the procedure linkage table which | |
1852 | corresponds to this symbol. This is the index of this symbol | |
1853 | in all the symbols for which we are making plt entries. The | |
1854 | first entry in the procedure linkage table is reserved. */ | |
1855 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
1856 | ||
1857 | /* Get the offset into the .got table of the entry that | |
1858 | corresponds to this function. Each .got entry is 4 bytes. | |
1859 | The first two are reserved. */ | |
1860 | got_offset = (plt_index + 3) * 4; | |
1861 | ||
1862 | /* Fill in the entry in the procedure linkage table. */ | |
1863 | memcpy (splt->contents + h->plt.offset, elf_vax_plt_entry, | |
1864 | PLT_ENTRY_SIZE); | |
1865 | ||
1866 | /* The offset is relative to the first extension word. */ | |
1867 | bfd_put_32 (output_bfd, | |
1868 | -(h->plt.offset + 8), | |
1869 | splt->contents + h->plt.offset + 4); | |
1870 | ||
1871 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela), | |
1872 | splt->contents + h->plt.offset + 8); | |
1873 | ||
1874 | /* Fill in the entry in the global offset table. */ | |
1875 | bfd_put_32 (output_bfd, | |
1876 | (splt->output_section->vma | |
1877 | + splt->output_offset | |
1878 | + h->plt.offset) + addend, | |
1879 | sgot->contents + got_offset); | |
1880 | ||
1881 | /* Fill in the entry in the .rela.plt section. */ | |
1882 | rela.r_offset = (sgot->output_section->vma | |
1883 | + sgot->output_offset | |
1884 | + got_offset); | |
1885 | rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_JMP_SLOT); | |
1886 | rela.r_addend = addend; | |
947216bf AM |
1887 | loc = srela->contents + plt_index * sizeof (Elf32_External_Rela); |
1888 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
90ace9e9 | 1889 | |
f5385ebf | 1890 | if (!h->def_regular) |
90ace9e9 JT |
1891 | { |
1892 | /* Mark the symbol as undefined, rather than as defined in | |
1893 | the .plt section. Leave the value alone. */ | |
1894 | sym->st_shndx = SHN_UNDEF; | |
1895 | } | |
1896 | } | |
1897 | ||
1898 | if (h->got.offset != (bfd_vma) -1) | |
1899 | { | |
1900 | asection *sgot; | |
1901 | asection *srela; | |
1902 | Elf_Internal_Rela rela; | |
947216bf | 1903 | bfd_byte *loc; |
90ace9e9 JT |
1904 | |
1905 | /* This symbol has an entry in the global offset table. Set it | |
1906 | up. */ | |
90ace9e9 JT |
1907 | sgot = bfd_get_section_by_name (dynobj, ".got"); |
1908 | srela = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1909 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
1910 | ||
1911 | rela.r_offset = (sgot->output_section->vma | |
1912 | + sgot->output_offset | |
1913 | + (h->got.offset &~ 1)); | |
1914 | ||
1915 | /* If the symbol was forced to be local because of a version file | |
1916 | locally we just want to emit a RELATIVE reloc. The entry in | |
1917 | the global offset table will already have been initialized in | |
1918 | the relocate_section function. */ | |
1919 | if (info->shared | |
1920 | && h->dynindx == -1 | |
f5385ebf | 1921 | && h->def_regular) |
90ace9e9 JT |
1922 | { |
1923 | rela.r_info = ELF32_R_INFO (0, R_VAX_RELATIVE); | |
1924 | } | |
1925 | else | |
1926 | { | |
1927 | rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_GLOB_DAT); | |
1928 | } | |
1929 | rela.r_addend = bfd_get_signed_32 (output_bfd, | |
1930 | (sgot->contents | |
1931 | + (h->got.offset & ~1))); | |
1932 | ||
947216bf AM |
1933 | loc = srela->contents; |
1934 | loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); | |
1935 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
90ace9e9 JT |
1936 | } |
1937 | ||
f5385ebf | 1938 | if (h->needs_copy) |
90ace9e9 JT |
1939 | { |
1940 | asection *s; | |
1941 | Elf_Internal_Rela rela; | |
947216bf | 1942 | bfd_byte *loc; |
90ace9e9 JT |
1943 | |
1944 | /* This symbol needs a copy reloc. Set it up. */ | |
90ace9e9 JT |
1945 | BFD_ASSERT (h->dynindx != -1 |
1946 | && (h->root.type == bfd_link_hash_defined | |
1947 | || h->root.type == bfd_link_hash_defweak)); | |
1948 | ||
1949 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
1950 | ".rela.bss"); | |
1951 | BFD_ASSERT (s != NULL); | |
1952 | ||
1953 | rela.r_offset = (h->root.u.def.value | |
1954 | + h->root.u.def.section->output_section->vma | |
1955 | + h->root.u.def.section->output_offset); | |
1956 | rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_COPY); | |
1957 | rela.r_addend = 0; | |
947216bf AM |
1958 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
1959 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
90ace9e9 JT |
1960 | } |
1961 | ||
1962 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
1963 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
22edb2f1 | 1964 | || h == elf_hash_table (info)->hgot) |
90ace9e9 JT |
1965 | sym->st_shndx = SHN_ABS; |
1966 | ||
b34976b6 | 1967 | return TRUE; |
90ace9e9 JT |
1968 | } |
1969 | ||
1970 | /* Finish up the dynamic sections. */ | |
1971 | ||
b34976b6 | 1972 | static bfd_boolean |
ce71b576 | 1973 | elf_vax_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
90ace9e9 JT |
1974 | { |
1975 | bfd *dynobj; | |
1976 | asection *sgot; | |
1977 | asection *sdyn; | |
1978 | ||
1979 | dynobj = elf_hash_table (info)->dynobj; | |
1980 | ||
1981 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1982 | BFD_ASSERT (sgot != NULL); | |
1983 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
1984 | ||
1985 | if (elf_hash_table (info)->dynamic_sections_created) | |
1986 | { | |
1987 | asection *splt; | |
1988 | Elf32_External_Dyn *dyncon, *dynconend; | |
1989 | ||
1990 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1991 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
1992 | ||
1993 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 1994 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
90ace9e9 JT |
1995 | for (; dyncon < dynconend; dyncon++) |
1996 | { | |
1997 | Elf_Internal_Dyn dyn; | |
1998 | const char *name; | |
1999 | asection *s; | |
2000 | ||
2001 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
2002 | ||
2003 | switch (dyn.d_tag) | |
2004 | { | |
2005 | default: | |
2006 | break; | |
2007 | ||
2008 | case DT_PLTGOT: | |
2009 | name = ".got"; | |
2010 | goto get_vma; | |
2011 | case DT_JMPREL: | |
2012 | name = ".rela.plt"; | |
2013 | get_vma: | |
2014 | s = bfd_get_section_by_name (output_bfd, name); | |
2015 | BFD_ASSERT (s != NULL); | |
2016 | dyn.d_un.d_ptr = s->vma; | |
2017 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2018 | break; | |
2019 | ||
2020 | case DT_PLTRELSZ: | |
2021 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
2022 | BFD_ASSERT (s != NULL); | |
eea6121a | 2023 | dyn.d_un.d_val = s->size; |
90ace9e9 JT |
2024 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
2025 | break; | |
2026 | ||
2027 | case DT_RELASZ: | |
2028 | /* The procedure linkage table relocs (DT_JMPREL) should | |
2029 | not be included in the overall relocs (DT_RELA). | |
2030 | Therefore, we override the DT_RELASZ entry here to | |
2031 | make it not include the JMPREL relocs. Since the | |
2032 | linker script arranges for .rela.plt to follow all | |
2033 | other relocation sections, we don't have to worry | |
2034 | about changing the DT_RELA entry. */ | |
2035 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
2036 | if (s != NULL) | |
eea6121a | 2037 | dyn.d_un.d_val -= s->size; |
90ace9e9 JT |
2038 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
2039 | break; | |
2040 | } | |
2041 | } | |
2042 | ||
2043 | /* Fill in the first entry in the procedure linkage table. */ | |
eea6121a | 2044 | if (splt->size > 0) |
90ace9e9 JT |
2045 | { |
2046 | memcpy (splt->contents, elf_vax_plt0_entry, PLT_ENTRY_SIZE); | |
2047 | bfd_put_32 (output_bfd, | |
2048 | (sgot->output_section->vma | |
2049 | + sgot->output_offset + 4 | |
2050 | - (splt->output_section->vma + 6)), | |
2051 | splt->contents + 2); | |
2052 | bfd_put_32 (output_bfd, | |
2053 | (sgot->output_section->vma | |
2054 | + sgot->output_offset + 8 | |
2055 | - (splt->output_section->vma + 12)), | |
2056 | splt->contents + 8); | |
cedb70c5 | 2057 | elf_section_data (splt->output_section)->this_hdr.sh_entsize |
90ace9e9 JT |
2058 | = PLT_ENTRY_SIZE; |
2059 | } | |
2060 | } | |
2061 | ||
2062 | /* Fill in the first three entries in the global offset table. */ | |
eea6121a | 2063 | if (sgot->size > 0) |
90ace9e9 JT |
2064 | { |
2065 | if (sdyn == NULL) | |
2066 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
2067 | else | |
2068 | bfd_put_32 (output_bfd, | |
2069 | sdyn->output_section->vma + sdyn->output_offset, | |
2070 | sgot->contents); | |
2071 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
2072 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
2073 | } | |
2074 | ||
2075 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
2076 | ||
b34976b6 | 2077 | return TRUE; |
90ace9e9 JT |
2078 | } |
2079 | ||
9b90d8fd MR |
2080 | static enum elf_reloc_type_class |
2081 | elf_vax_reloc_type_class (const Elf_Internal_Rela *rela) | |
2082 | { | |
2083 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
2084 | { | |
2085 | case R_VAX_RELATIVE: | |
2086 | return reloc_class_relative; | |
2087 | case R_VAX_JMP_SLOT: | |
2088 | return reloc_class_plt; | |
2089 | case R_VAX_COPY: | |
2090 | return reloc_class_copy; | |
2091 | default: | |
2092 | return reloc_class_normal; | |
2093 | } | |
2094 | } | |
2095 | ||
6db7e006 MR |
2096 | static bfd_vma |
2097 | elf_vax_plt_sym_val (bfd_vma i, const asection *plt, | |
2098 | const arelent *rel ATTRIBUTE_UNUSED) | |
2099 | { | |
2100 | return plt->vma + (i + 1) * PLT_ENTRY_SIZE; | |
2101 | } | |
2102 | ||
90ace9e9 JT |
2103 | #define TARGET_LITTLE_SYM bfd_elf32_vax_vec |
2104 | #define TARGET_LITTLE_NAME "elf32-vax" | |
2105 | #define ELF_MACHINE_CODE EM_VAX | |
2106 | #define ELF_MAXPAGESIZE 0x1000 | |
2107 | ||
2108 | #define elf_backend_create_dynamic_sections \ | |
2109 | _bfd_elf_create_dynamic_sections | |
2110 | #define bfd_elf32_bfd_link_hash_table_create \ | |
2111 | elf_vax_link_hash_table_create | |
c152c796 | 2112 | #define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link |
90ace9e9 JT |
2113 | |
2114 | #define elf_backend_check_relocs elf_vax_check_relocs | |
2115 | #define elf_backend_adjust_dynamic_symbol \ | |
2116 | elf_vax_adjust_dynamic_symbol | |
2117 | #define elf_backend_size_dynamic_sections \ | |
2118 | elf_vax_size_dynamic_sections | |
74541ad4 | 2119 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
90ace9e9 JT |
2120 | #define elf_backend_relocate_section elf_vax_relocate_section |
2121 | #define elf_backend_finish_dynamic_symbol \ | |
2122 | elf_vax_finish_dynamic_symbol | |
2123 | #define elf_backend_finish_dynamic_sections \ | |
2124 | elf_vax_finish_dynamic_sections | |
9b90d8fd | 2125 | #define elf_backend_reloc_type_class elf_vax_reloc_type_class |
90ace9e9 JT |
2126 | #define elf_backend_gc_mark_hook elf_vax_gc_mark_hook |
2127 | #define elf_backend_gc_sweep_hook elf_vax_gc_sweep_hook | |
6db7e006 | 2128 | #define elf_backend_plt_sym_val elf_vax_plt_sym_val |
90ace9e9 JT |
2129 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
2130 | elf32_vax_merge_private_bfd_data | |
2131 | #define bfd_elf32_bfd_set_private_flags \ | |
2132 | elf32_vax_set_private_flags | |
2133 | #define bfd_elf32_bfd_print_private_bfd_data \ | |
2134 | elf32_vax_print_private_bfd_data | |
2135 | ||
2136 | #define elf_backend_can_gc_sections 1 | |
2137 | #define elf_backend_want_got_plt 1 | |
2138 | #define elf_backend_plt_readonly 1 | |
2139 | #define elf_backend_want_plt_sym 0 | |
2140 | #define elf_backend_got_header_size 16 | |
f0fe0e16 | 2141 | #define elf_backend_rela_normal 1 |
90ace9e9 JT |
2142 | |
2143 | #include "elf32-target.h" |