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90ace9e9 | 1 | /* VAX series support for 32-bit ELF |
2571583a | 2 | Copyright (C) 1993-2017 Free Software Foundation, Inc. |
90ace9e9 JT |
3 | Contributed by Matt Thomas <matt@3am-software.com>. |
4 | ||
ae9a127f | 5 | This file is part of BFD, the Binary File Descriptor library. |
90ace9e9 | 6 | |
ae9a127f NC |
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 | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
ae9a127f | 10 | (at your option) any later version. |
90ace9e9 | 11 | |
ae9a127f NC |
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. | |
90ace9e9 | 16 | |
ae9a127f NC |
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 | |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
90ace9e9 | 21 | |
90ace9e9 | 22 | #include "sysdep.h" |
3db64b00 | 23 | #include "bfd.h" |
90ace9e9 JT |
24 | #include "bfdlink.h" |
25 | #include "libbfd.h" | |
26 | #include "elf-bfd.h" | |
27 | #include "elf/vax.h" | |
28 | ||
ce71b576 NC |
29 | static reloc_howto_type *reloc_type_lookup (bfd *, bfd_reloc_code_real_type); |
30 | static void rtype_to_howto (bfd *, arelent *, Elf_Internal_Rela *); | |
31 | static struct bfd_hash_entry *elf_vax_link_hash_newfunc (struct bfd_hash_entry *, | |
32 | struct bfd_hash_table *, | |
33 | const char *); | |
34 | static struct bfd_link_hash_table *elf_vax_link_hash_table_create (bfd *); | |
35 | static bfd_boolean elf_vax_check_relocs (bfd *, struct bfd_link_info *, | |
36 | asection *, const Elf_Internal_Rela *); | |
ce71b576 NC |
37 | static bfd_boolean elf_vax_adjust_dynamic_symbol (struct bfd_link_info *, |
38 | struct elf_link_hash_entry *); | |
39 | static bfd_boolean elf_vax_size_dynamic_sections (bfd *, struct bfd_link_info *); | |
40 | static bfd_boolean elf_vax_relocate_section (bfd *, struct bfd_link_info *, | |
41 | bfd *, asection *, bfd_byte *, | |
42 | Elf_Internal_Rela *, | |
43 | Elf_Internal_Sym *, asection **); | |
44 | static bfd_boolean elf_vax_finish_dynamic_symbol (bfd *, struct bfd_link_info *, | |
45 | struct elf_link_hash_entry *, | |
46 | Elf_Internal_Sym *); | |
47 | static bfd_boolean elf_vax_finish_dynamic_sections (bfd *, | |
48 | struct bfd_link_info *); | |
6db7e006 MR |
49 | static bfd_vma elf_vax_plt_sym_val (bfd_vma, const asection *, |
50 | const arelent *); | |
ce71b576 NC |
51 | |
52 | static bfd_boolean elf32_vax_set_private_flags (bfd *, flagword); | |
2c3fc389 | 53 | static bfd_boolean elf32_vax_print_private_bfd_data (bfd *, void *); |
90ace9e9 JT |
54 | |
55 | static reloc_howto_type howto_table[] = { | |
56 | HOWTO (R_VAX_NONE, /* type */ | |
57 | 0, /* rightshift */ | |
6346d5ca | 58 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
90ace9e9 | 59 | 0, /* bitsize */ |
b34976b6 | 60 | FALSE, /* pc_relative */ |
90ace9e9 JT |
61 | 0, /* bitpos */ |
62 | complain_overflow_dont, /* complain_on_overflow */ | |
63 | bfd_elf_generic_reloc, /* special_function */ | |
64 | "R_VAX_NONE", /* name */ | |
b34976b6 | 65 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
66 | 0, /* src_mask */ |
67 | 0x00000000, /* dst_mask */ | |
b34976b6 | 68 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
69 | |
70 | HOWTO (R_VAX_32, /* type */ | |
71 | 0, /* rightshift */ | |
72 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
73 | 32, /* bitsize */ | |
b34976b6 | 74 | FALSE, /* pc_relative */ |
90ace9e9 JT |
75 | 0, /* bitpos */ |
76 | complain_overflow_bitfield, /* complain_on_overflow */ | |
77 | bfd_elf_generic_reloc, /* special_function */ | |
78 | "R_VAX_32", /* name */ | |
b34976b6 | 79 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
80 | 0, /* src_mask */ |
81 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 82 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
83 | |
84 | HOWTO (R_VAX_16, /* type */ | |
85 | 0, /* rightshift */ | |
86 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
87 | 16, /* bitsize */ | |
b34976b6 | 88 | FALSE, /* pc_relative */ |
90ace9e9 JT |
89 | 0, /* bitpos */ |
90 | complain_overflow_bitfield, /* complain_on_overflow */ | |
91 | bfd_elf_generic_reloc, /* special_function */ | |
92 | "R_VAX_16", /* name */ | |
b34976b6 | 93 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
94 | 0, /* src_mask */ |
95 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 96 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
97 | |
98 | HOWTO (R_VAX_8, /* type */ | |
99 | 0, /* rightshift */ | |
100 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
101 | 8, /* bitsize */ | |
b34976b6 | 102 | FALSE, /* pc_relative */ |
90ace9e9 JT |
103 | 0, /* bitpos */ |
104 | complain_overflow_bitfield, /* complain_on_overflow */ | |
105 | bfd_elf_generic_reloc, /* special_function */ | |
106 | "R_VAX_8", /* name */ | |
b34976b6 | 107 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
108 | 0, /* src_mask */ |
109 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 110 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
111 | |
112 | HOWTO (R_VAX_PC32, /* type */ | |
113 | 0, /* rightshift */ | |
114 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
115 | 32, /* bitsize */ | |
b34976b6 | 116 | TRUE, /* pc_relative */ |
90ace9e9 JT |
117 | 0, /* bitpos */ |
118 | complain_overflow_bitfield, /* complain_on_overflow */ | |
119 | bfd_elf_generic_reloc, /* special_function */ | |
120 | "R_VAX_PC32", /* name */ | |
b34976b6 | 121 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
122 | 0, /* src_mask */ |
123 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 124 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
125 | |
126 | HOWTO (R_VAX_PC16, /* type */ | |
127 | 0, /* rightshift */ | |
128 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
129 | 16, /* bitsize */ | |
b34976b6 | 130 | TRUE, /* pc_relative */ |
90ace9e9 JT |
131 | 0, /* bitpos */ |
132 | complain_overflow_signed, /* complain_on_overflow */ | |
133 | bfd_elf_generic_reloc, /* special_function */ | |
134 | "R_VAX_PC16", /* name */ | |
b34976b6 | 135 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
136 | 0, /* src_mask */ |
137 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 138 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
139 | |
140 | HOWTO (R_VAX_PC8, /* type */ | |
141 | 0, /* rightshift */ | |
142 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
143 | 8, /* bitsize */ | |
b34976b6 | 144 | TRUE, /* pc_relative */ |
90ace9e9 JT |
145 | 0, /* bitpos */ |
146 | complain_overflow_signed, /* complain_on_overflow */ | |
147 | bfd_elf_generic_reloc, /* special_function */ | |
148 | "R_VAX_PC8", /* name */ | |
b34976b6 | 149 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
150 | 0, /* src_mask */ |
151 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 152 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
153 | |
154 | HOWTO (R_VAX_GOT32, /* type */ | |
155 | 0, /* rightshift */ | |
156 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
157 | 32, /* bitsize */ | |
b34976b6 | 158 | TRUE, /* pc_relative */ |
90ace9e9 JT |
159 | 0, /* bitpos */ |
160 | complain_overflow_bitfield, /* complain_on_overflow */ | |
161 | bfd_elf_generic_reloc, /* special_function */ | |
162 | "R_VAX_GOT32", /* name */ | |
b34976b6 | 163 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
164 | 0, /* src_mask */ |
165 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 166 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
167 | |
168 | EMPTY_HOWTO (-1), | |
169 | EMPTY_HOWTO (-1), | |
170 | EMPTY_HOWTO (-1), | |
171 | EMPTY_HOWTO (-1), | |
172 | EMPTY_HOWTO (-1), | |
173 | ||
174 | HOWTO (R_VAX_PLT32, /* type */ | |
175 | 0, /* rightshift */ | |
176 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
177 | 32, /* bitsize */ | |
b34976b6 | 178 | TRUE, /* pc_relative */ |
90ace9e9 JT |
179 | 0, /* bitpos */ |
180 | complain_overflow_bitfield, /* complain_on_overflow */ | |
181 | bfd_elf_generic_reloc, /* special_function */ | |
182 | "R_VAX_PLT32", /* name */ | |
b34976b6 | 183 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
184 | 0, /* src_mask */ |
185 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 186 | TRUE), /* pcrel_offset */ |
90ace9e9 JT |
187 | |
188 | EMPTY_HOWTO (-1), | |
189 | EMPTY_HOWTO (-1), | |
190 | EMPTY_HOWTO (-1), | |
191 | EMPTY_HOWTO (-1), | |
192 | EMPTY_HOWTO (-1), | |
193 | ||
194 | HOWTO (R_VAX_COPY, /* type */ | |
195 | 0, /* rightshift */ | |
196 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
197 | 0, /* bitsize */ | |
b34976b6 | 198 | FALSE, /* pc_relative */ |
90ace9e9 JT |
199 | 0, /* bitpos */ |
200 | complain_overflow_dont, /* complain_on_overflow */ | |
201 | bfd_elf_generic_reloc, /* special_function */ | |
202 | "R_VAX_COPY", /* name */ | |
b34976b6 | 203 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
204 | 0, /* src_mask */ |
205 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 206 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
207 | |
208 | HOWTO (R_VAX_GLOB_DAT, /* type */ | |
209 | 0, /* rightshift */ | |
210 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
211 | 32, /* bitsize */ | |
b34976b6 | 212 | FALSE, /* pc_relative */ |
90ace9e9 JT |
213 | 0, /* bitpos */ |
214 | complain_overflow_dont, /* complain_on_overflow */ | |
215 | bfd_elf_generic_reloc, /* special_function */ | |
216 | "R_VAX_GLOB_DAT", /* name */ | |
b34976b6 | 217 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
218 | 0, /* src_mask */ |
219 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 220 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
221 | |
222 | HOWTO (R_VAX_JMP_SLOT, /* type */ | |
223 | 0, /* rightshift */ | |
224 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
225 | 32, /* bitsize */ | |
b34976b6 | 226 | FALSE, /* pc_relative */ |
90ace9e9 JT |
227 | 0, /* bitpos */ |
228 | complain_overflow_dont, /* complain_on_overflow */ | |
229 | bfd_elf_generic_reloc, /* special_function */ | |
230 | "R_VAX_JMP_SLOT", /* name */ | |
b34976b6 | 231 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
232 | 0, /* src_mask */ |
233 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 234 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
235 | |
236 | HOWTO (R_VAX_RELATIVE, /* type */ | |
237 | 0, /* rightshift */ | |
238 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
239 | 32, /* bitsize */ | |
b34976b6 | 240 | FALSE, /* pc_relative */ |
90ace9e9 JT |
241 | 0, /* bitpos */ |
242 | complain_overflow_dont, /* complain_on_overflow */ | |
243 | bfd_elf_generic_reloc, /* special_function */ | |
244 | "R_VAX_RELATIVE", /* name */ | |
b34976b6 | 245 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
246 | 0, /* src_mask */ |
247 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 248 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
249 | |
250 | /* GNU extension to record C++ vtable hierarchy */ | |
251 | HOWTO (R_VAX_GNU_VTINHERIT, /* type */ | |
252 | 0, /* rightshift */ | |
253 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
254 | 0, /* bitsize */ | |
b34976b6 | 255 | FALSE, /* pc_relative */ |
90ace9e9 JT |
256 | 0, /* bitpos */ |
257 | complain_overflow_dont, /* complain_on_overflow */ | |
258 | NULL, /* special_function */ | |
259 | "R_VAX_GNU_VTINHERIT", /* name */ | |
b34976b6 | 260 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
261 | 0, /* src_mask */ |
262 | 0, /* dst_mask */ | |
b34976b6 | 263 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
264 | |
265 | /* GNU extension to record C++ vtable member usage */ | |
266 | HOWTO (R_VAX_GNU_VTENTRY, /* type */ | |
267 | 0, /* rightshift */ | |
268 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
269 | 0, /* bitsize */ | |
b34976b6 | 270 | FALSE, /* pc_relative */ |
90ace9e9 JT |
271 | 0, /* bitpos */ |
272 | complain_overflow_dont, /* complain_on_overflow */ | |
273 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
274 | "R_VAX_GNU_VTENTRY", /* name */ | |
b34976b6 | 275 | FALSE, /* partial_inplace */ |
90ace9e9 JT |
276 | 0, /* src_mask */ |
277 | 0, /* dst_mask */ | |
b34976b6 | 278 | FALSE), /* pcrel_offset */ |
90ace9e9 JT |
279 | }; |
280 | ||
281 | static void | |
64d29018 | 282 | rtype_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst) |
90ace9e9 | 283 | { |
cd21f5da NC |
284 | unsigned int r_type; |
285 | ||
286 | r_type = ELF32_R_TYPE (dst->r_info); | |
287 | if (r_type >= R_VAX_max) | |
288 | { | |
695344c0 | 289 | /* xgettext:c-format */ |
4eca0228 AM |
290 | _bfd_error_handler (_("%B: unrecognised VAX reloc number: %d"), |
291 | abfd, r_type); | |
cd21f5da NC |
292 | bfd_set_error (bfd_error_bad_value); |
293 | r_type = R_VAX_NONE; | |
294 | } | |
295 | cache_ptr->howto = &howto_table[r_type]; | |
90ace9e9 JT |
296 | } |
297 | ||
298 | #define elf_info_to_howto rtype_to_howto | |
299 | ||
300 | static const struct | |
301 | { | |
302 | bfd_reloc_code_real_type bfd_val; | |
303 | int elf_val; | |
304 | } reloc_map[] = { | |
305 | { BFD_RELOC_NONE, R_VAX_NONE }, | |
306 | { BFD_RELOC_32, R_VAX_32 }, | |
307 | { BFD_RELOC_16, R_VAX_16 }, | |
308 | { BFD_RELOC_8, R_VAX_8 }, | |
309 | { BFD_RELOC_32_PCREL, R_VAX_PC32 }, | |
310 | { BFD_RELOC_16_PCREL, R_VAX_PC16 }, | |
311 | { BFD_RELOC_8_PCREL, R_VAX_PC8 }, | |
312 | { BFD_RELOC_32_GOT_PCREL, R_VAX_GOT32 }, | |
313 | { BFD_RELOC_32_PLT_PCREL, R_VAX_PLT32 }, | |
314 | { BFD_RELOC_NONE, R_VAX_COPY }, | |
315 | { BFD_RELOC_VAX_GLOB_DAT, R_VAX_GLOB_DAT }, | |
316 | { BFD_RELOC_VAX_JMP_SLOT, R_VAX_JMP_SLOT }, | |
317 | { BFD_RELOC_VAX_RELATIVE, R_VAX_RELATIVE }, | |
318 | { BFD_RELOC_CTOR, R_VAX_32 }, | |
319 | { BFD_RELOC_VTABLE_INHERIT, R_VAX_GNU_VTINHERIT }, | |
320 | { BFD_RELOC_VTABLE_ENTRY, R_VAX_GNU_VTENTRY }, | |
321 | }; | |
322 | ||
323 | static reloc_howto_type * | |
ce71b576 | 324 | reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, bfd_reloc_code_real_type code) |
90ace9e9 JT |
325 | { |
326 | unsigned int i; | |
327 | for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++) | |
328 | { | |
329 | if (reloc_map[i].bfd_val == code) | |
330 | return &howto_table[reloc_map[i].elf_val]; | |
331 | } | |
332 | return 0; | |
333 | } | |
334 | ||
157090f7 AM |
335 | static reloc_howto_type * |
336 | reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
337 | const char *r_name) | |
338 | { | |
339 | unsigned int i; | |
340 | ||
341 | for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++) | |
342 | if (howto_table[i].name != NULL | |
343 | && strcasecmp (howto_table[i].name, r_name) == 0) | |
344 | return &howto_table[i]; | |
345 | ||
346 | return NULL; | |
347 | } | |
348 | ||
90ace9e9 | 349 | #define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup |
157090f7 | 350 | #define bfd_elf32_bfd_reloc_name_lookup reloc_name_lookup |
90ace9e9 JT |
351 | #define ELF_ARCH bfd_arch_vax |
352 | /* end code generated by elf.el */ | |
90ace9e9 JT |
353 | \f |
354 | /* Functions for the VAX ELF linker. */ | |
355 | ||
356 | /* The name of the dynamic interpreter. This is put in the .interp | |
357 | section. */ | |
358 | ||
359 | #define ELF_DYNAMIC_INTERPRETER "/usr/libexec/ld.elf_so" | |
360 | ||
361 | /* The size in bytes of an entry in the procedure linkage table. */ | |
362 | ||
363 | #define PLT_ENTRY_SIZE 12 | |
364 | ||
365 | /* The first entry in a procedure linkage table looks like this. See | |
366 | the SVR4 ABI VAX supplement to see how this works. */ | |
367 | ||
368 | static const bfd_byte elf_vax_plt0_entry[PLT_ENTRY_SIZE] = | |
369 | { | |
370 | 0xdd, 0xef, /* pushl l^ */ | |
371 | 0, 0, 0, 0, /* offset to .plt.got + 4 */ | |
372 | 0x17, 0xff, /* jmp @L^(pc) */ | |
373 | 0, 0, 0, 0, /* offset to .plt.got + 8 */ | |
374 | }; | |
375 | ||
376 | /* Subsequent entries in a procedure linkage table look like this. */ | |
377 | ||
378 | static const bfd_byte elf_vax_plt_entry[PLT_ENTRY_SIZE] = | |
379 | { | |
6c4fb25a | 380 | 0xfc, 0x0f, /* .word ^M<r11:r2> */ |
71f136d6 | 381 | 0x16, 0xef, /* jsb L^(pc) */ |
90ace9e9 JT |
382 | 0, 0, 0, 0, /* replaced with offset to start of .plt */ |
383 | 0, 0, 0, 0, /* index into .rela.plt */ | |
384 | }; | |
385 | ||
386 | /* The VAX linker needs to keep track of the number of relocs that it | |
387 | decides to copy in check_relocs for each symbol. This is so that it | |
388 | can discard PC relative relocs if it doesn't need them when linking | |
389 | with -Bsymbolic. We store the information in a field extending the | |
390 | regular ELF linker hash table. */ | |
391 | ||
392 | /* This structure keeps track of the number of PC relative relocs we have | |
393 | copied for a given symbol. */ | |
394 | ||
395 | struct elf_vax_pcrel_relocs_copied | |
396 | { | |
397 | /* Next section. */ | |
398 | struct elf_vax_pcrel_relocs_copied *next; | |
399 | /* A section in dynobj. */ | |
400 | asection *section; | |
401 | /* Number of relocs copied in this section. */ | |
402 | bfd_size_type count; | |
403 | }; | |
404 | ||
405 | /* VAX ELF linker hash entry. */ | |
406 | ||
407 | struct elf_vax_link_hash_entry | |
408 | { | |
409 | struct elf_link_hash_entry root; | |
410 | ||
411 | /* Number of PC relative relocs copied for this symbol. */ | |
412 | struct elf_vax_pcrel_relocs_copied *pcrel_relocs_copied; | |
413 | ||
414 | bfd_vma got_addend; | |
415 | }; | |
416 | ||
90ace9e9 JT |
417 | /* Declare this now that the above structures are defined. */ |
418 | ||
ce71b576 | 419 | static bfd_boolean elf_vax_discard_copies (struct elf_vax_link_hash_entry *, |
4dfe6ac6 | 420 | void *); |
90ace9e9 | 421 | |
b29635ba JT |
422 | /* Declare this now that the above structures are defined. */ |
423 | ||
ce71b576 | 424 | static bfd_boolean elf_vax_instantiate_got_entries (struct elf_link_hash_entry *, |
4dfe6ac6 | 425 | void *); |
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 \ | |
4dfe6ac6 | 431 | ((table), \ |
2c3fc389 | 432 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
90ace9e9 JT |
433 | (info))) |
434 | ||
90ace9e9 JT |
435 | /* Create an entry in an VAX ELF linker hash table. */ |
436 | ||
437 | static struct bfd_hash_entry * | |
ce71b576 NC |
438 | elf_vax_link_hash_newfunc (struct bfd_hash_entry *entry, |
439 | struct bfd_hash_table *table, | |
440 | const char *string) | |
90ace9e9 JT |
441 | { |
442 | struct elf_vax_link_hash_entry *ret = | |
443 | (struct elf_vax_link_hash_entry *) entry; | |
444 | ||
445 | /* Allocate the structure if it has not already been allocated by a | |
446 | subclass. */ | |
ce71b576 | 447 | if (ret == NULL) |
90ace9e9 JT |
448 | ret = ((struct elf_vax_link_hash_entry *) |
449 | bfd_hash_allocate (table, | |
450 | sizeof (struct elf_vax_link_hash_entry))); | |
ce71b576 | 451 | if (ret == NULL) |
90ace9e9 JT |
452 | return (struct bfd_hash_entry *) ret; |
453 | ||
454 | /* Call the allocation method of the superclass. */ | |
455 | ret = ((struct elf_vax_link_hash_entry *) | |
456 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
457 | table, string)); | |
ce71b576 | 458 | if (ret != NULL) |
90ace9e9 JT |
459 | { |
460 | ret->pcrel_relocs_copied = NULL; | |
461 | } | |
462 | ||
463 | return (struct bfd_hash_entry *) ret; | |
464 | } | |
465 | ||
466 | /* Create an VAX ELF linker hash table. */ | |
467 | ||
468 | static struct bfd_link_hash_table * | |
ce71b576 | 469 | elf_vax_link_hash_table_create (bfd *abfd) |
90ace9e9 | 470 | { |
4dfe6ac6 NC |
471 | struct elf_link_hash_table *ret; |
472 | bfd_size_type amt = sizeof (struct elf_link_hash_table); | |
90ace9e9 | 473 | |
7bf52ea2 | 474 | ret = bfd_zmalloc (amt); |
ce71b576 | 475 | if (ret == NULL) |
90ace9e9 JT |
476 | return NULL; |
477 | ||
4dfe6ac6 | 478 | if (!_bfd_elf_link_hash_table_init (ret, abfd, |
66eb6687 | 479 | elf_vax_link_hash_newfunc, |
4dfe6ac6 NC |
480 | sizeof (struct elf_vax_link_hash_entry), |
481 | GENERIC_ELF_DATA)) | |
90ace9e9 JT |
482 | { |
483 | free (ret); | |
484 | return NULL; | |
485 | } | |
486 | ||
4dfe6ac6 | 487 | return &ret->root; |
90ace9e9 JT |
488 | } |
489 | ||
490 | /* Keep vax-specific flags in the ELF header */ | |
b34976b6 | 491 | static bfd_boolean |
ce71b576 | 492 | elf32_vax_set_private_flags (bfd *abfd, flagword flags) |
90ace9e9 JT |
493 | { |
494 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
495 | elf_flags_init (abfd) = TRUE; |
496 | return TRUE; | |
90ace9e9 JT |
497 | } |
498 | ||
499 | /* Merge backend specific data from an object file to the output | |
500 | object file when linking. */ | |
b34976b6 | 501 | static bfd_boolean |
50e03d47 | 502 | elf32_vax_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
90ace9e9 | 503 | { |
50e03d47 | 504 | bfd *obfd = info->output_bfd; |
90ace9e9 JT |
505 | flagword in_flags; |
506 | ||
507 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
508 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 509 | return TRUE; |
90ace9e9 JT |
510 | |
511 | in_flags = elf_elfheader (ibfd)->e_flags; | |
90ace9e9 JT |
512 | |
513 | if (!elf_flags_init (obfd)) | |
514 | { | |
b34976b6 | 515 | elf_flags_init (obfd) = TRUE; |
90ace9e9 JT |
516 | elf_elfheader (obfd)->e_flags = in_flags; |
517 | } | |
518 | ||
b34976b6 | 519 | return TRUE; |
90ace9e9 JT |
520 | } |
521 | ||
522 | /* Display the flags field */ | |
b34976b6 | 523 | static bfd_boolean |
2c3fc389 | 524 | elf32_vax_print_private_bfd_data (bfd *abfd, void * ptr) |
90ace9e9 JT |
525 | { |
526 | FILE *file = (FILE *) ptr; | |
527 | ||
528 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
529 | ||
530 | /* Print normal ELF private data. */ | |
531 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
532 | ||
533 | /* Ignore init flag - it may not be set, despite the flags field containing valid data. */ | |
534 | ||
535 | /* xgettext:c-format */ | |
536 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
537 | ||
179d3252 | 538 | if (elf_elfheader (abfd)->e_flags & EF_VAX_NONPIC) |
90ace9e9 JT |
539 | fprintf (file, _(" [nonpic]")); |
540 | ||
179d3252 | 541 | if (elf_elfheader (abfd)->e_flags & EF_VAX_DFLOAT) |
90ace9e9 JT |
542 | fprintf (file, _(" [d-float]")); |
543 | ||
179d3252 | 544 | if (elf_elfheader (abfd)->e_flags & EF_VAX_GFLOAT) |
90ace9e9 JT |
545 | fprintf (file, _(" [g-float]")); |
546 | ||
547 | fputc ('\n', file); | |
548 | ||
b34976b6 | 549 | return TRUE; |
90ace9e9 JT |
550 | } |
551 | /* Look through the relocs for a section during the first phase, and | |
552 | allocate space in the global offset table or procedure linkage | |
553 | table. */ | |
554 | ||
b34976b6 | 555 | static bfd_boolean |
ce71b576 NC |
556 | elf_vax_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, |
557 | const Elf_Internal_Rela *relocs) | |
90ace9e9 JT |
558 | { |
559 | bfd *dynobj; | |
560 | Elf_Internal_Shdr *symtab_hdr; | |
561 | struct elf_link_hash_entry **sym_hashes; | |
90ace9e9 JT |
562 | const Elf_Internal_Rela *rel; |
563 | const Elf_Internal_Rela *rel_end; | |
90ace9e9 JT |
564 | asection *sreloc; |
565 | ||
0e1862bb | 566 | if (bfd_link_relocatable (info)) |
b34976b6 | 567 | return TRUE; |
90ace9e9 JT |
568 | |
569 | dynobj = elf_hash_table (info)->dynobj; | |
570 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
571 | sym_hashes = elf_sym_hashes (abfd); | |
90ace9e9 | 572 | |
90ace9e9 JT |
573 | sreloc = NULL; |
574 | ||
575 | rel_end = relocs + sec->reloc_count; | |
576 | for (rel = relocs; rel < rel_end; rel++) | |
577 | { | |
578 | unsigned long r_symndx; | |
579 | struct elf_link_hash_entry *h; | |
580 | ||
581 | r_symndx = ELF32_R_SYM (rel->r_info); | |
582 | ||
583 | if (r_symndx < symtab_hdr->sh_info) | |
584 | h = NULL; | |
585 | else | |
973a3492 L |
586 | { |
587 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
588 | while (h->root.type == bfd_link_hash_indirect | |
589 | || h->root.type == bfd_link_hash_warning) | |
590 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
591 | |
592 | /* PR15323, ref flags aren't set for references in the same | |
593 | object. */ | |
bc4e12de | 594 | h->root.non_ir_ref_regular = 1; |
973a3492 | 595 | } |
90ace9e9 JT |
596 | |
597 | switch (ELF32_R_TYPE (rel->r_info)) | |
598 | { | |
599 | case R_VAX_GOT32: | |
fe723c87 | 600 | BFD_ASSERT (h != NULL); |
90ace9e9 | 601 | |
7b6021f1 MR |
602 | /* If this is a local symbol, we resolve it directly without |
603 | creating a global offset table entry. */ | |
125b5bac MR |
604 | if (h->forced_local |
605 | || h == elf_hash_table (info)->hgot | |
606 | || h == elf_hash_table (info)->hplt) | |
7b6021f1 MR |
607 | break; |
608 | ||
90ace9e9 JT |
609 | /* This symbol requires a global offset table entry. */ |
610 | ||
611 | if (dynobj == NULL) | |
612 | { | |
613 | /* Create the .got section. */ | |
614 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
615 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 616 | return FALSE; |
90ace9e9 JT |
617 | } |
618 | ||
90ace9e9 JT |
619 | if (h != NULL) |
620 | { | |
621 | struct elf_vax_link_hash_entry *eh; | |
622 | ||
623 | eh = (struct elf_vax_link_hash_entry *) h; | |
624 | if (h->got.refcount == -1) | |
625 | { | |
626 | h->got.refcount = 1; | |
627 | eh->got_addend = rel->r_addend; | |
90ace9e9 JT |
628 | } |
629 | else | |
630 | { | |
631 | h->got.refcount++; | |
632 | if (eh->got_addend != (bfd_vma) rel->r_addend) | |
4eca0228 | 633 | _bfd_error_handler |
695344c0 | 634 | /* xgettext:c-format */ |
d42c267e AM |
635 | (_("%B: warning: GOT addend of %Ld to `%s' does" |
636 | " not match previous GOT addend of %Ld"), | |
dae82561 | 637 | abfd, rel->r_addend, h->root.root.string, |
fe723c87 | 638 | eh->got_addend); |
cedb70c5 | 639 | |
90ace9e9 JT |
640 | } |
641 | } | |
642 | break; | |
643 | ||
644 | case R_VAX_PLT32: | |
645 | /* This symbol requires a procedure linkage table entry. We | |
646 | actually build the entry in adjust_dynamic_symbol, | |
647 | because this might be a case of linking PIC code which is | |
648 | never referenced by a dynamic object, in which case we | |
649 | don't need to generate a procedure linkage table entry | |
650 | after all. */ | |
125b5bac | 651 | BFD_ASSERT (h != NULL); |
90ace9e9 JT |
652 | |
653 | /* If this is a local symbol, we resolve it directly without | |
654 | creating a procedure linkage table entry. */ | |
125b5bac | 655 | if (h->forced_local) |
fe723c87 | 656 | break; |
90ace9e9 | 657 | |
f5385ebf | 658 | h->needs_plt = 1; |
90ace9e9 JT |
659 | if (h->plt.refcount == -1) |
660 | h->plt.refcount = 1; | |
661 | else | |
662 | h->plt.refcount++; | |
663 | break; | |
664 | ||
665 | case R_VAX_PC8: | |
666 | case R_VAX_PC16: | |
667 | case R_VAX_PC32: | |
668 | /* If we are creating a shared library and this is not a local | |
669 | symbol, we need to copy the reloc into the shared library. | |
670 | However when linking with -Bsymbolic and this is a global | |
671 | symbol which is defined in an object we are including in the | |
672 | link (i.e., DEF_REGULAR is set), then we can resolve the | |
673 | reloc directly. At this point we have not seen all the input | |
674 | files, so it is possible that DEF_REGULAR is not set now but | |
675 | will be set later (it is never cleared). We account for that | |
676 | possibility below by storing information in the | |
677 | pcrel_relocs_copied field of the hash table entry. */ | |
0e1862bb | 678 | if (!(bfd_link_pic (info) |
90ace9e9 JT |
679 | && (sec->flags & SEC_ALLOC) != 0 |
680 | && h != NULL | |
681 | && (!info->symbolic | |
f5385ebf | 682 | || !h->def_regular))) |
90ace9e9 | 683 | { |
7b6021f1 MR |
684 | if (h != NULL |
685 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
686 | && !h->forced_local) | |
90ace9e9 JT |
687 | { |
688 | /* Make sure a plt entry is created for this symbol if | |
689 | it turns out to be a function defined by a dynamic | |
690 | object. */ | |
691 | if (h->plt.refcount == -1) | |
692 | h->plt.refcount = 1; | |
693 | else | |
694 | h->plt.refcount++; | |
695 | } | |
696 | break; | |
697 | } | |
7b6021f1 MR |
698 | /* If this is a local symbol, we can resolve it directly. */ |
699 | if (h != NULL | |
700 | && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
701 | || h->forced_local)) | |
fe723c87 MT |
702 | break; |
703 | ||
90ace9e9 JT |
704 | /* Fall through. */ |
705 | case R_VAX_8: | |
706 | case R_VAX_16: | |
707 | case R_VAX_32: | |
7b6021f1 | 708 | if (h != NULL && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
90ace9e9 JT |
709 | { |
710 | /* Make sure a plt entry is created for this symbol if it | |
711 | turns out to be a function defined by a dynamic object. */ | |
712 | if (h->plt.refcount == -1) | |
713 | h->plt.refcount = 1; | |
714 | else | |
715 | h->plt.refcount++; | |
716 | } | |
717 | ||
718 | /* If we are creating a shared library, we need to copy the | |
719 | reloc into the shared library. */ | |
0e1862bb | 720 | if (bfd_link_pic (info) |
90ace9e9 JT |
721 | && (sec->flags & SEC_ALLOC) != 0) |
722 | { | |
723 | /* When creating a shared object, we must copy these | |
724 | reloc types into the output file. We create a reloc | |
725 | section in dynobj and make room for this reloc. */ | |
726 | if (sreloc == NULL) | |
727 | { | |
83bac4b0 NC |
728 | sreloc = _bfd_elf_make_dynamic_reloc_section |
729 | (sec, dynobj, 2, abfd, /*rela?*/ TRUE); | |
90ace9e9 | 730 | |
83bac4b0 | 731 | if (sreloc == NULL) |
b34976b6 | 732 | return FALSE; |
90ace9e9 | 733 | |
90ace9e9 JT |
734 | if (sec->flags & SEC_READONLY) |
735 | info->flags |= DF_TEXTREL; | |
736 | } | |
737 | ||
eea6121a | 738 | sreloc->size += sizeof (Elf32_External_Rela); |
90ace9e9 JT |
739 | |
740 | /* If we are linking with -Bsymbolic, we count the number of | |
741 | PC relative relocations we have entered for this symbol, | |
742 | so that we can discard them again if the symbol is later | |
743 | defined by a regular object. Note that this function is | |
19852a2a | 744 | only called if we are using a vaxelf linker hash table, |
90ace9e9 JT |
745 | which means that h is really a pointer to an |
746 | elf_vax_link_hash_entry. */ | |
747 | if ((ELF32_R_TYPE (rel->r_info) == R_VAX_PC8 | |
ce71b576 NC |
748 | || ELF32_R_TYPE (rel->r_info) == R_VAX_PC16 |
749 | || ELF32_R_TYPE (rel->r_info) == R_VAX_PC32) | |
90ace9e9 JT |
750 | && info->symbolic) |
751 | { | |
752 | struct elf_vax_link_hash_entry *eh; | |
753 | struct elf_vax_pcrel_relocs_copied *p; | |
754 | ||
755 | eh = (struct elf_vax_link_hash_entry *) h; | |
756 | ||
757 | for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) | |
758 | if (p->section == sreloc) | |
759 | break; | |
760 | ||
761 | if (p == NULL) | |
762 | { | |
763 | p = ((struct elf_vax_pcrel_relocs_copied *) | |
764 | bfd_alloc (dynobj, (bfd_size_type) sizeof *p)); | |
765 | if (p == NULL) | |
b34976b6 | 766 | return FALSE; |
90ace9e9 JT |
767 | p->next = eh->pcrel_relocs_copied; |
768 | eh->pcrel_relocs_copied = p; | |
769 | p->section = sreloc; | |
770 | p->count = 0; | |
771 | } | |
772 | ||
773 | ++p->count; | |
774 | } | |
775 | } | |
776 | ||
777 | break; | |
778 | ||
779 | /* This relocation describes the C++ object vtable hierarchy. | |
780 | Reconstruct it for later use during GC. */ | |
781 | case R_VAX_GNU_VTINHERIT: | |
c152c796 | 782 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 783 | return FALSE; |
90ace9e9 JT |
784 | break; |
785 | ||
786 | /* This relocation describes which C++ vtable entries are actually | |
787 | used. Record for later use during GC. */ | |
788 | case R_VAX_GNU_VTENTRY: | |
d17e0c6e JB |
789 | BFD_ASSERT (h != NULL); |
790 | if (h != NULL | |
791 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 792 | return FALSE; |
90ace9e9 JT |
793 | break; |
794 | ||
795 | default: | |
796 | break; | |
797 | } | |
798 | } | |
799 | ||
b34976b6 | 800 | return TRUE; |
90ace9e9 JT |
801 | } |
802 | ||
803 | /* Return the section that should be marked against GC for a given | |
804 | relocation. */ | |
805 | ||
806 | static asection * | |
ce71b576 | 807 | elf_vax_gc_mark_hook (asection *sec, |
07adf181 | 808 | struct bfd_link_info *info, |
ce71b576 NC |
809 | Elf_Internal_Rela *rel, |
810 | struct elf_link_hash_entry *h, | |
811 | Elf_Internal_Sym *sym) | |
90ace9e9 JT |
812 | { |
813 | if (h != NULL) | |
07adf181 AM |
814 | switch (ELF32_R_TYPE (rel->r_info)) |
815 | { | |
816 | case R_VAX_GNU_VTINHERIT: | |
817 | case R_VAX_GNU_VTENTRY: | |
818 | return NULL; | |
819 | } | |
820 | ||
821 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
90ace9e9 JT |
822 | } |
823 | ||
90ace9e9 JT |
824 | /* Adjust a symbol defined by a dynamic object and referenced by a |
825 | regular object. The current definition is in some section of the | |
826 | dynamic object, but we're not including those sections. We have to | |
827 | change the definition to something the rest of the link can | |
828 | understand. */ | |
829 | ||
b34976b6 | 830 | static bfd_boolean |
a0f0eb1e MR |
831 | elf_vax_adjust_dynamic_symbol (struct bfd_link_info *info, |
832 | struct elf_link_hash_entry *h) | |
90ace9e9 JT |
833 | { |
834 | bfd *dynobj; | |
835 | asection *s; | |
90ace9e9 JT |
836 | |
837 | dynobj = elf_hash_table (info)->dynobj; | |
838 | ||
839 | /* Make sure we know what is going on here. */ | |
840 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 841 | && (h->needs_plt |
f6e332e6 | 842 | || h->u.weakdef != NULL |
f5385ebf AM |
843 | || (h->def_dynamic |
844 | && h->ref_regular | |
845 | && !h->def_regular))); | |
90ace9e9 JT |
846 | |
847 | /* If this is a function, put it in the procedure linkage table. We | |
848 | will fill in the contents of the procedure linkage table later, | |
849 | when we know the address of the .got section. */ | |
850 | if (h->type == STT_FUNC | |
f5385ebf | 851 | || h->needs_plt) |
90ace9e9 | 852 | { |
a22a8039 MR |
853 | if (h->plt.refcount <= 0 |
854 | || SYMBOL_CALLS_LOCAL (info, h) | |
855 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
856 | && h->root.type == bfd_link_hash_undefweak)) | |
90ace9e9 JT |
857 | { |
858 | /* This case can occur if we saw a PLTxx reloc in an input | |
859 | file, but the symbol was never referred to by a dynamic | |
a22a8039 MR |
860 | object, or if all references were garbage collected. In |
861 | such a case, we don't actually need to build a procedure | |
862 | linkage table, and we can just do a PCxx reloc instead. */ | |
90ace9e9 | 863 | h->plt.offset = (bfd_vma) -1; |
f5385ebf | 864 | h->needs_plt = 0; |
b34976b6 | 865 | return TRUE; |
90ace9e9 JT |
866 | } |
867 | ||
ce558b89 | 868 | s = elf_hash_table (info)->splt; |
90ace9e9 JT |
869 | BFD_ASSERT (s != NULL); |
870 | ||
871 | /* If this is the first .plt entry, make room for the special | |
872 | first entry. */ | |
eea6121a | 873 | if (s->size == 0) |
90ace9e9 | 874 | { |
eea6121a | 875 | s->size += PLT_ENTRY_SIZE; |
90ace9e9 JT |
876 | } |
877 | ||
878 | /* If this symbol is not defined in a regular file, and we are | |
879 | not generating a shared library, then set the symbol to this | |
880 | location in the .plt. This is required to make function | |
881 | pointers compare as equal between the normal executable and | |
882 | the shared library. */ | |
0e1862bb | 883 | if (!bfd_link_pic (info) |
f5385ebf | 884 | && !h->def_regular) |
90ace9e9 JT |
885 | { |
886 | h->root.u.def.section = s; | |
eea6121a | 887 | h->root.u.def.value = s->size; |
90ace9e9 JT |
888 | } |
889 | ||
eea6121a | 890 | h->plt.offset = s->size; |
90ace9e9 JT |
891 | |
892 | /* Make room for this entry. */ | |
eea6121a | 893 | s->size += PLT_ENTRY_SIZE; |
90ace9e9 JT |
894 | |
895 | /* We also need to make an entry in the .got.plt section, which | |
896 | will be placed in the .got section by the linker script. */ | |
897 | ||
ce558b89 | 898 | s = elf_hash_table (info)->sgotplt; |
90ace9e9 | 899 | BFD_ASSERT (s != NULL); |
eea6121a | 900 | s->size += 4; |
90ace9e9 JT |
901 | |
902 | /* We also need to make an entry in the .rela.plt section. */ | |
903 | ||
ce558b89 | 904 | s = elf_hash_table (info)->srelplt; |
90ace9e9 | 905 | BFD_ASSERT (s != NULL); |
eea6121a | 906 | s->size += sizeof (Elf32_External_Rela); |
90ace9e9 | 907 | |
b34976b6 | 908 | return TRUE; |
90ace9e9 JT |
909 | } |
910 | ||
911 | /* Reinitialize the plt offset now that it is not used as a reference | |
912 | count any more. */ | |
913 | h->plt.offset = (bfd_vma) -1; | |
914 | ||
915 | /* If this is a weak symbol, and there is a real definition, the | |
916 | processor independent code will have arranged for us to see the | |
917 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 918 | if (h->u.weakdef != NULL) |
90ace9e9 | 919 | { |
f6e332e6 AM |
920 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
921 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
922 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
923 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
b34976b6 | 924 | return TRUE; |
90ace9e9 JT |
925 | } |
926 | ||
927 | /* This is a reference to a symbol defined by a dynamic object which | |
928 | is not a function. */ | |
929 | ||
930 | /* If we are creating a shared library, we must presume that the | |
931 | only references to the symbol are via the global offset table. | |
932 | For such cases we need not do anything here; the relocations will | |
933 | be handled correctly by relocate_section. */ | |
0e1862bb | 934 | if (bfd_link_pic (info)) |
b34976b6 | 935 | return TRUE; |
90ace9e9 JT |
936 | |
937 | /* We must allocate the symbol in our .dynbss section, which will | |
938 | become part of the .bss section of the executable. There will be | |
939 | an entry for this symbol in the .dynsym section. The dynamic | |
940 | object will contain position independent code, so all references | |
941 | from the dynamic object to this symbol will go through the global | |
942 | offset table. The dynamic linker will use the .dynsym entry to | |
943 | determine the address it must put in the global offset table, so | |
944 | both the dynamic object and the regular object will refer to the | |
945 | same memory location for the variable. */ | |
946 | ||
3d4d4302 | 947 | s = bfd_get_linker_section (dynobj, ".dynbss"); |
90ace9e9 JT |
948 | BFD_ASSERT (s != NULL); |
949 | ||
950 | /* We must generate a R_VAX_COPY reloc to tell the dynamic linker to | |
951 | copy the initial value out of the dynamic object and into the | |
952 | runtime process image. We need to remember the offset into the | |
953 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 954 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
90ace9e9 JT |
955 | { |
956 | asection *srel; | |
957 | ||
3d4d4302 | 958 | srel = bfd_get_linker_section (dynobj, ".rela.bss"); |
90ace9e9 | 959 | BFD_ASSERT (srel != NULL); |
eea6121a | 960 | srel->size += sizeof (Elf32_External_Rela); |
f5385ebf | 961 | h->needs_copy = 1; |
90ace9e9 JT |
962 | } |
963 | ||
6cabe1ea | 964 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
90ace9e9 JT |
965 | } |
966 | ||
fac3d241 MR |
967 | /* This function is called via elf_link_hash_traverse. It resets GOT |
968 | and PLT (.GOT) reference counts back to -1 so normal PC32 relocation | |
969 | will be done. */ | |
970 | ||
971 | static bfd_boolean | |
972 | elf_vax_discard_got_entries (struct elf_link_hash_entry *h, | |
973 | void *infoptr ATTRIBUTE_UNUSED) | |
974 | { | |
975 | h->got.refcount = -1; | |
976 | h->plt.refcount = -1; | |
977 | ||
978 | return TRUE; | |
979 | } | |
980 | ||
981 | /* Discard unused dynamic data if this is a static link. */ | |
982 | ||
983 | static bfd_boolean | |
984 | elf_vax_always_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
985 | struct bfd_link_info *info) | |
986 | { | |
987 | bfd *dynobj; | |
988 | asection *s; | |
989 | ||
990 | dynobj = elf_hash_table (info)->dynobj; | |
991 | ||
992 | if (dynobj && !elf_hash_table (info)->dynamic_sections_created) | |
993 | { | |
994 | /* We may have created entries in the .rela.got and .got sections. | |
995 | However, if we are not creating the dynamic sections, we will | |
996 | not actually use these entries. Reset the size of .rela.got | |
49d01bf6 | 997 | and .got, which will cause them to get stripped from the output |
fac3d241 | 998 | file below. */ |
ce558b89 | 999 | s = elf_hash_table (info)->srelgot; |
fac3d241 MR |
1000 | if (s != NULL) |
1001 | s->size = 0; | |
ce558b89 | 1002 | s = elf_hash_table (info)->sgotplt; |
fac3d241 MR |
1003 | if (s != NULL) |
1004 | s->size = 0; | |
ce558b89 | 1005 | s = elf_hash_table (info)->sgot; |
fac3d241 MR |
1006 | if (s != NULL) |
1007 | s->size = 0; | |
1008 | } | |
1009 | ||
1010 | /* If this is a static link, we need to discard all the got entries we've | |
1011 | recorded. */ | |
1012 | if (!dynobj || !elf_hash_table (info)->dynamic_sections_created) | |
1013 | elf_link_hash_traverse (elf_hash_table (info), | |
1014 | elf_vax_discard_got_entries, | |
1015 | info); | |
1016 | ||
1017 | return TRUE; | |
1018 | } | |
1019 | ||
90ace9e9 JT |
1020 | /* Set the sizes of the dynamic sections. */ |
1021 | ||
b34976b6 | 1022 | static bfd_boolean |
ce71b576 | 1023 | elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
90ace9e9 JT |
1024 | { |
1025 | bfd *dynobj; | |
1026 | asection *s; | |
b34976b6 AM |
1027 | bfd_boolean plt; |
1028 | bfd_boolean relocs; | |
1029 | bfd_boolean reltext; | |
90ace9e9 JT |
1030 | |
1031 | dynobj = elf_hash_table (info)->dynobj; | |
1032 | BFD_ASSERT (dynobj != NULL); | |
1033 | ||
1034 | if (elf_hash_table (info)->dynamic_sections_created) | |
1035 | { | |
1036 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 1037 | if (bfd_link_executable (info) && !info->nointerp) |
90ace9e9 | 1038 | { |
3d4d4302 | 1039 | s = bfd_get_linker_section (dynobj, ".interp"); |
90ace9e9 | 1040 | BFD_ASSERT (s != NULL); |
eea6121a | 1041 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
90ace9e9 JT |
1042 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
1043 | } | |
1044 | } | |
90ace9e9 JT |
1045 | |
1046 | /* If this is a -Bsymbolic shared link, then we need to discard all PC | |
1047 | relative relocs against symbols defined in a regular object. We | |
1048 | allocated space for them in the check_relocs routine, but we will not | |
1049 | fill them in in the relocate_section routine. */ | |
0e1862bb | 1050 | if (bfd_link_pic (info) && info->symbolic) |
4dfe6ac6 | 1051 | elf_vax_link_hash_traverse (elf_hash_table (info), |
b29635ba | 1052 | elf_vax_discard_copies, |
ce71b576 | 1053 | NULL); |
b29635ba | 1054 | |
fac3d241 MR |
1055 | /* If this is a -Bsymbolic shared link, we need to discard all the got |
1056 | entries we've recorded. Otherwise, we need to instantiate (allocate | |
1057 | space for them). */ | |
b29635ba JT |
1058 | elf_link_hash_traverse (elf_hash_table (info), |
1059 | elf_vax_instantiate_got_entries, | |
2c3fc389 | 1060 | info); |
90ace9e9 JT |
1061 | |
1062 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
1063 | determined the sizes of the various dynamic sections. Allocate | |
1064 | memory for them. */ | |
b34976b6 AM |
1065 | plt = FALSE; |
1066 | relocs = FALSE; | |
1067 | reltext = FALSE; | |
90ace9e9 JT |
1068 | for (s = dynobj->sections; s != NULL; s = s->next) |
1069 | { | |
1070 | const char *name; | |
90ace9e9 JT |
1071 | |
1072 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
1073 | continue; | |
1074 | ||
1075 | /* It's OK to base decisions on the section name, because none | |
1076 | of the dynobj section names depend upon the input files. */ | |
1077 | name = bfd_get_section_name (dynobj, s); | |
1078 | ||
90ace9e9 JT |
1079 | if (strcmp (name, ".plt") == 0) |
1080 | { | |
c456f082 AM |
1081 | /* Remember whether there is a PLT. */ |
1082 | plt = s->size != 0; | |
90ace9e9 | 1083 | } |
0112cd26 | 1084 | else if (CONST_STRNEQ (name, ".rela")) |
90ace9e9 | 1085 | { |
c456f082 | 1086 | if (s->size != 0) |
90ace9e9 JT |
1087 | { |
1088 | asection *target; | |
1089 | ||
1090 | /* Remember whether there are any reloc sections other | |
1091 | than .rela.plt. */ | |
1092 | if (strcmp (name, ".rela.plt") != 0) | |
1093 | { | |
1094 | const char *outname; | |
1095 | ||
b34976b6 | 1096 | relocs = TRUE; |
90ace9e9 JT |
1097 | |
1098 | /* If this relocation section applies to a read only | |
1099 | section, then we probably need a DT_TEXTREL | |
1100 | entry. .rela.plt is actually associated with | |
1101 | .got.plt, which is never readonly. */ | |
1102 | outname = bfd_get_section_name (output_bfd, | |
1103 | s->output_section); | |
1104 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
1105 | if (target != NULL | |
1106 | && (target->flags & SEC_READONLY) != 0 | |
1107 | && (target->flags & SEC_ALLOC) != 0) | |
b34976b6 | 1108 | reltext = TRUE; |
90ace9e9 JT |
1109 | } |
1110 | ||
1111 | /* We use the reloc_count field as a counter if we need | |
1112 | to copy relocs into the output file. */ | |
1113 | s->reloc_count = 0; | |
1114 | } | |
1115 | } | |
0112cd26 | 1116 | else if (! CONST_STRNEQ (name, ".got") |
c456f082 | 1117 | && strcmp (name, ".dynbss") != 0) |
90ace9e9 JT |
1118 | { |
1119 | /* It's not one of our sections, so don't allocate space. */ | |
1120 | continue; | |
1121 | } | |
1122 | ||
c456f082 | 1123 | if (s->size == 0) |
90ace9e9 | 1124 | { |
c456f082 AM |
1125 | /* If we don't need this section, strip it from the |
1126 | output file. This is mostly to handle .rela.bss and | |
1127 | .rela.plt. We must create both sections in | |
1128 | create_dynamic_sections, because they must be created | |
1129 | before the linker maps input sections to output | |
1130 | sections. The linker does that before | |
1131 | adjust_dynamic_symbol is called, and it is that | |
1132 | function which decides whether anything needs to go | |
1133 | into these sections. */ | |
8423293d | 1134 | s->flags |= SEC_EXCLUDE; |
90ace9e9 JT |
1135 | continue; |
1136 | } | |
1137 | ||
c456f082 AM |
1138 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
1139 | continue; | |
1140 | ||
90ace9e9 | 1141 | /* Allocate memory for the section contents. */ |
eb9a5ecf | 1142 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
c456f082 | 1143 | if (s->contents == NULL) |
b34976b6 | 1144 | return FALSE; |
90ace9e9 JT |
1145 | } |
1146 | ||
1147 | if (elf_hash_table (info)->dynamic_sections_created) | |
1148 | { | |
1149 | /* Add some entries to the .dynamic section. We fill in the | |
1150 | values later, in elf_vax_finish_dynamic_sections, but we | |
1151 | must add the entries now so that we get the correct size for | |
1152 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1153 | dynamic linker and used by the debugger. */ | |
1154 | #define add_dynamic_entry(TAG, VAL) \ | |
5a580b3a | 1155 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
90ace9e9 | 1156 | |
0e1862bb | 1157 | if (!bfd_link_pic (info)) |
90ace9e9 JT |
1158 | { |
1159 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
b34976b6 | 1160 | return FALSE; |
90ace9e9 JT |
1161 | } |
1162 | ||
1163 | if (plt) | |
1164 | { | |
1165 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
1166 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
1167 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
1168 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 1169 | return FALSE; |
90ace9e9 JT |
1170 | } |
1171 | ||
1172 | if (relocs) | |
1173 | { | |
1174 | if (!add_dynamic_entry (DT_RELA, 0) | |
1175 | || !add_dynamic_entry (DT_RELASZ, 0) | |
1176 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 1177 | return FALSE; |
90ace9e9 JT |
1178 | } |
1179 | ||
1180 | if (reltext || (info->flags & DF_TEXTREL) != 0) | |
1181 | { | |
1182 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 1183 | return FALSE; |
90ace9e9 JT |
1184 | } |
1185 | } | |
1186 | #undef add_dynamic_entry | |
1187 | ||
b34976b6 | 1188 | return TRUE; |
90ace9e9 JT |
1189 | } |
1190 | ||
1191 | /* This function is called via elf_vax_link_hash_traverse if we are | |
1192 | creating a shared object with -Bsymbolic. It discards the space | |
1193 | allocated to copy PC relative relocs against symbols which are defined | |
1194 | in regular objects. We allocated space for them in the check_relocs | |
1195 | routine, but we won't fill them in in the relocate_section routine. */ | |
1196 | ||
b34976b6 | 1197 | static bfd_boolean |
ce71b576 | 1198 | elf_vax_discard_copies (struct elf_vax_link_hash_entry *h, |
2c3fc389 | 1199 | void * ignore ATTRIBUTE_UNUSED) |
90ace9e9 JT |
1200 | { |
1201 | struct elf_vax_pcrel_relocs_copied *s; | |
1202 | ||
90ace9e9 | 1203 | /* We only discard relocs for symbols defined in a regular object. */ |
f5385ebf | 1204 | if (!h->root.def_regular) |
b34976b6 | 1205 | return TRUE; |
90ace9e9 JT |
1206 | |
1207 | for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) | |
eea6121a | 1208 | s->section->size -= s->count * sizeof (Elf32_External_Rela); |
90ace9e9 | 1209 | |
b34976b6 | 1210 | return TRUE; |
90ace9e9 JT |
1211 | } |
1212 | ||
fac3d241 MR |
1213 | /* This function is called via elf_link_hash_traverse. It looks for |
1214 | entries that have GOT or PLT (.GOT) references. If creating a shared | |
1215 | object with -Bsymbolic, or the symbol has been forced local, then it | |
1216 | resets the reference count back to -1 so normal PC32 relocation will | |
1217 | be done. Otherwise space in the .got and .rela.got will be reserved | |
1218 | for the symbol. */ | |
b29635ba | 1219 | |
b34976b6 | 1220 | static bfd_boolean |
2c3fc389 | 1221 | elf_vax_instantiate_got_entries (struct elf_link_hash_entry *h, void * infoptr) |
b29635ba JT |
1222 | { |
1223 | struct bfd_link_info *info = (struct bfd_link_info *) infoptr; | |
1224 | bfd *dynobj; | |
1225 | asection *sgot; | |
1226 | asection *srelgot; | |
b34976b6 | 1227 | |
b29635ba JT |
1228 | /* We don't care about non-GOT (and non-PLT) entries. */ |
1229 | if (h->got.refcount <= 0 && h->plt.refcount <= 0) | |
b34976b6 | 1230 | return TRUE; |
b29635ba JT |
1231 | |
1232 | dynobj = elf_hash_table (info)->dynobj; | |
fac3d241 | 1233 | BFD_ASSERT (dynobj != NULL); |
b29635ba | 1234 | |
ce558b89 AM |
1235 | sgot = elf_hash_table (info)->sgot; |
1236 | srelgot = elf_hash_table (info)->srelgot; | |
b29635ba | 1237 | |
125b5bac | 1238 | if (SYMBOL_REFERENCES_LOCAL (info, h)) |
b29635ba | 1239 | { |
8be65dd3 MR |
1240 | h->got.refcount = -1; |
1241 | h->plt.refcount = -1; | |
b29635ba JT |
1242 | } |
1243 | else if (h->got.refcount > 0) | |
1244 | { | |
1245 | /* Make sure this symbol is output as a dynamic symbol. */ | |
1246 | if (h->dynindx == -1) | |
1247 | { | |
c152c796 | 1248 | if (!bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1249 | return FALSE; |
b29635ba JT |
1250 | } |
1251 | ||
1252 | /* Allocate space in the .got and .rela.got sections. */ | |
125b5bac MR |
1253 | sgot->size += 4; |
1254 | srelgot->size += sizeof (Elf32_External_Rela); | |
b29635ba JT |
1255 | } |
1256 | ||
b34976b6 | 1257 | return TRUE; |
b29635ba JT |
1258 | } |
1259 | ||
90ace9e9 JT |
1260 | /* Relocate an VAX ELF section. */ |
1261 | ||
b34976b6 | 1262 | static bfd_boolean |
ce71b576 NC |
1263 | elf_vax_relocate_section (bfd *output_bfd, |
1264 | struct bfd_link_info *info, | |
1265 | bfd *input_bfd, | |
1266 | asection *input_section, | |
1267 | bfd_byte *contents, | |
1268 | Elf_Internal_Rela *relocs, | |
1269 | Elf_Internal_Sym *local_syms, | |
1270 | asection **local_sections) | |
90ace9e9 | 1271 | { |
90ace9e9 JT |
1272 | Elf_Internal_Shdr *symtab_hdr; |
1273 | struct elf_link_hash_entry **sym_hashes; | |
90ace9e9 JT |
1274 | bfd_vma plt_index; |
1275 | bfd_vma got_offset; | |
1276 | asection *sgot; | |
1277 | asection *splt; | |
1278 | asection *sgotplt; | |
1279 | asection *sreloc; | |
1280 | Elf_Internal_Rela *rel; | |
1281 | Elf_Internal_Rela *relend; | |
1282 | ||
90ace9e9 JT |
1283 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
1284 | sym_hashes = elf_sym_hashes (input_bfd); | |
90ace9e9 JT |
1285 | |
1286 | sgot = NULL; | |
1287 | splt = NULL; | |
1288 | sgotplt = NULL; | |
1289 | sreloc = NULL; | |
1290 | ||
1291 | rel = relocs; | |
1292 | relend = relocs + input_section->reloc_count; | |
1293 | for (; rel < relend; rel++) | |
1294 | { | |
1295 | int r_type; | |
1296 | reloc_howto_type *howto; | |
1297 | unsigned long r_symndx; | |
1298 | struct elf_link_hash_entry *h; | |
1299 | Elf_Internal_Sym *sym; | |
1300 | asection *sec; | |
1301 | bfd_vma relocation; | |
1302 | bfd_reloc_status_type r; | |
1303 | ||
1304 | r_type = ELF32_R_TYPE (rel->r_info); | |
1305 | if (r_type < 0 || r_type >= (int) R_VAX_max) | |
1306 | { | |
1307 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1308 | return FALSE; |
90ace9e9 JT |
1309 | } |
1310 | howto = howto_table + r_type; | |
1311 | ||
f0fe0e16 | 1312 | r_symndx = ELF32_R_SYM (rel->r_info); |
90ace9e9 JT |
1313 | h = NULL; |
1314 | sym = NULL; | |
1315 | sec = NULL; | |
1316 | if (r_symndx < symtab_hdr->sh_info) | |
1317 | { | |
1318 | sym = local_syms + r_symndx; | |
1319 | sec = local_sections[r_symndx]; | |
8517fae7 | 1320 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
90ace9e9 JT |
1321 | } |
1322 | else | |
1323 | { | |
560e09e9 | 1324 | bfd_boolean unresolved_reloc; |
62d887d4 | 1325 | bfd_boolean warned, ignored; |
560e09e9 | 1326 | |
b2a8e766 AM |
1327 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
1328 | r_symndx, symtab_hdr, sym_hashes, | |
1329 | h, sec, relocation, | |
62d887d4 | 1330 | unresolved_reloc, warned, ignored); |
ce71b576 | 1331 | |
560e09e9 | 1332 | if ((h->root.type == bfd_link_hash_defined |
90ace9e9 | 1333 | || h->root.type == bfd_link_hash_defweak) |
560e09e9 | 1334 | && ((r_type == R_VAX_PLT32 |
90ace9e9 | 1335 | && h->plt.offset != (bfd_vma) -1 |
fe723c87 | 1336 | && !h->forced_local |
90ace9e9 JT |
1337 | && elf_hash_table (info)->dynamic_sections_created) |
1338 | || (r_type == R_VAX_GOT32 | |
fe723c87 MT |
1339 | && h->got.offset != (bfd_vma) -1 |
1340 | && !h->forced_local | |
90ace9e9 | 1341 | && elf_hash_table (info)->dynamic_sections_created |
0e1862bb | 1342 | && (! bfd_link_pic (info) |
90ace9e9 | 1343 | || (! info->symbolic && h->dynindx != -1) |
f5385ebf | 1344 | || !h->def_regular)) |
0e1862bb | 1345 | || (bfd_link_pic (info) |
90ace9e9 | 1346 | && ((! info->symbolic && h->dynindx != -1) |
f5385ebf | 1347 | || !h->def_regular) |
90ace9e9 JT |
1348 | && ((input_section->flags & SEC_ALLOC) != 0 |
1349 | /* DWARF will emit R_VAX_32 relocations in its | |
1350 | sections against symbols defined externally | |
1351 | in shared libraries. We can't do anything | |
1352 | with them here. */ | |
1353 | ||
1354 | || ((input_section->flags & SEC_DEBUGGING) != 0 | |
f5385ebf | 1355 | && h->def_dynamic)) |
90ace9e9 JT |
1356 | && (r_type == R_VAX_8 |
1357 | || r_type == R_VAX_16 | |
fe723c87 | 1358 | || r_type == R_VAX_32)))) |
560e09e9 NC |
1359 | /* In these cases, we don't need the relocation |
1360 | value. We check specially because in some | |
1361 | obscure cases sec->output_section will be NULL. */ | |
90ace9e9 | 1362 | relocation = 0; |
90ace9e9 JT |
1363 | } |
1364 | ||
dbaa2011 | 1365 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 1366 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 1367 | rel, 1, relend, howto, 0, contents); |
ab96bf03 | 1368 | |
0e1862bb | 1369 | if (bfd_link_relocatable (info)) |
ab96bf03 AM |
1370 | continue; |
1371 | ||
90ace9e9 JT |
1372 | switch (r_type) |
1373 | { | |
1374 | case R_VAX_GOT32: | |
1375 | /* Relocation is to the address of the entry for this symbol | |
1376 | in the global offset table. */ | |
125b5bac MR |
1377 | |
1378 | /* Resolve a GOTxx reloc against a local symbol directly, | |
1379 | without using the global offset table. */ | |
7b6021f1 | 1380 | if (h == NULL |
125b5bac | 1381 | || h->got.offset == (bfd_vma) -1) |
90ace9e9 JT |
1382 | break; |
1383 | ||
90ace9e9 JT |
1384 | { |
1385 | bfd_vma off; | |
1386 | ||
ce558b89 AM |
1387 | sgot = elf_hash_table (info)->sgot; |
1388 | BFD_ASSERT (sgot != NULL); | |
90ace9e9 | 1389 | |
90ace9e9 | 1390 | off = h->got.offset; |
eea6121a | 1391 | BFD_ASSERT (off < sgot->size); |
90ace9e9 | 1392 | |
125b5bac | 1393 | bfd_put_32 (output_bfd, rel->r_addend, sgot->contents + off); |
90ace9e9 JT |
1394 | |
1395 | relocation = sgot->output_offset + off; | |
b29635ba | 1396 | /* The GOT relocation uses the addend. */ |
90ace9e9 JT |
1397 | rel->r_addend = 0; |
1398 | ||
b29635ba JT |
1399 | /* Change the reference to be indirect. */ |
1400 | contents[rel->r_offset - 1] |= 0x10; | |
1401 | relocation += sgot->output_section->vma; | |
90ace9e9 JT |
1402 | } |
1403 | break; | |
1404 | ||
04981bc1 MR |
1405 | case R_VAX_PC32: |
1406 | /* If we are creating an executable and the function this | |
1407 | reloc refers to is in a shared lib, then we made a PLT | |
1408 | entry for this symbol and need to handle the reloc like | |
1409 | a PLT reloc. */ | |
0e1862bb | 1410 | if (bfd_link_pic (info)) |
04981bc1 MR |
1411 | goto r_vax_pc32_shared; |
1412 | /* Fall through. */ | |
90ace9e9 JT |
1413 | case R_VAX_PLT32: |
1414 | /* Relocation is to the entry for this symbol in the | |
1415 | procedure linkage table. */ | |
1416 | ||
1417 | /* Resolve a PLTxx reloc against a local symbol directly, | |
1418 | without using the procedure linkage table. */ | |
7b6021f1 | 1419 | if (h == NULL |
125b5bac | 1420 | || h->plt.offset == (bfd_vma) -1) |
90ace9e9 JT |
1421 | break; |
1422 | ||
ce558b89 AM |
1423 | splt = elf_hash_table (info)->splt; |
1424 | BFD_ASSERT (splt != NULL); | |
90ace9e9 | 1425 | |
ce558b89 AM |
1426 | sgotplt = elf_hash_table (info)->sgotplt; |
1427 | BFD_ASSERT (sgotplt != NULL); | |
90ace9e9 JT |
1428 | |
1429 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
1430 | ||
1431 | /* Get the offset into the .got table of the entry that | |
1432 | corresponds to this function. Each .got entry is 4 bytes. | |
1433 | The first two are reserved. */ | |
1434 | got_offset = (plt_index + 3) * 4; | |
1435 | ||
9e86195c | 1436 | /* We want the relocation to point into the .got.plt instead |
cedb70c5 | 1437 | of the plt itself. */ |
90ace9e9 JT |
1438 | relocation = (sgotplt->output_section->vma |
1439 | + sgotplt->output_offset | |
1440 | + got_offset); | |
1441 | contents[rel->r_offset-1] |= 0x10; /* make indirect */ | |
1442 | if (rel->r_addend == 2) | |
1443 | { | |
1444 | h->plt.offset |= 1; | |
1445 | } | |
1446 | else if (rel->r_addend != 0) | |
4eca0228 | 1447 | _bfd_error_handler |
695344c0 | 1448 | /* xgettext:c-format */ |
d42c267e | 1449 | (_("%B: warning: PLT addend of %Ld to `%s'" |
dae82561 AM |
1450 | " from %A section ignored"), |
1451 | input_bfd, rel->r_addend, h->root.root.string, input_section); | |
90ace9e9 JT |
1452 | rel->r_addend = 0; |
1453 | ||
1454 | break; | |
1455 | ||
1456 | case R_VAX_PC8: | |
1457 | case R_VAX_PC16: | |
04981bc1 | 1458 | r_vax_pc32_shared: |
7b6021f1 MR |
1459 | if (h == NULL |
1460 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
1461 | || h->forced_local) | |
90ace9e9 JT |
1462 | break; |
1463 | /* Fall through. */ | |
1464 | case R_VAX_8: | |
1465 | case R_VAX_16: | |
1466 | case R_VAX_32: | |
0e1862bb | 1467 | if (bfd_link_pic (info) |
cf35638d | 1468 | && r_symndx != STN_UNDEF |
90ace9e9 JT |
1469 | && (input_section->flags & SEC_ALLOC) != 0 |
1470 | && ((r_type != R_VAX_PC8 | |
1471 | && r_type != R_VAX_PC16 | |
1472 | && r_type != R_VAX_PC32) | |
da6bcfca MT |
1473 | || ((input_section->flags & SEC_CODE) |
1474 | && (!info->symbolic | |
1475 | || (!h->def_regular && h->type != STT_SECTION))))) | |
90ace9e9 JT |
1476 | { |
1477 | Elf_Internal_Rela outrel; | |
947216bf | 1478 | bfd_byte *loc; |
b34976b6 | 1479 | bfd_boolean skip, relocate; |
90ace9e9 JT |
1480 | |
1481 | /* When generating a shared object, these relocations | |
1482 | are copied into the output file to be resolved at run | |
1483 | time. */ | |
90ace9e9 JT |
1484 | if (sreloc == NULL) |
1485 | { | |
83bac4b0 NC |
1486 | sreloc = _bfd_elf_get_dynamic_reloc_section |
1487 | (input_bfd, input_section, /*rela?*/ TRUE); | |
1488 | if (sreloc == NULL) | |
b34976b6 | 1489 | return FALSE; |
90ace9e9 JT |
1490 | } |
1491 | ||
b34976b6 AM |
1492 | skip = FALSE; |
1493 | relocate = FALSE; | |
90ace9e9 JT |
1494 | |
1495 | outrel.r_offset = | |
1496 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1497 | rel->r_offset); | |
1498 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 1499 | skip = TRUE; |
90ace9e9 | 1500 | if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 1501 | skip = TRUE, relocate = TRUE; |
90ace9e9 JT |
1502 | outrel.r_offset += (input_section->output_section->vma |
1503 | + input_section->output_offset); | |
1504 | ||
1505 | if (skip) | |
1506 | memset (&outrel, 0, sizeof outrel); | |
1507 | /* h->dynindx may be -1 if the symbol was marked to | |
1508 | become local. */ | |
1509 | else if (h != NULL | |
1510 | && ((! info->symbolic && h->dynindx != -1) | |
f5385ebf | 1511 | || !h->def_regular)) |
90ace9e9 JT |
1512 | { |
1513 | BFD_ASSERT (h->dynindx != -1); | |
1514 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1515 | outrel.r_addend = relocation + rel->r_addend; | |
1516 | } | |
1517 | else | |
1518 | { | |
1519 | if (r_type == R_VAX_32) | |
1520 | { | |
b34976b6 | 1521 | relocate = TRUE; |
90ace9e9 JT |
1522 | outrel.r_info = ELF32_R_INFO (0, R_VAX_RELATIVE); |
1523 | BFD_ASSERT (bfd_get_signed_32 (input_bfd, | |
1524 | &contents[rel->r_offset]) == 0); | |
1525 | outrel.r_addend = relocation + rel->r_addend; | |
1526 | } | |
1527 | else | |
1528 | { | |
1529 | long indx; | |
1530 | ||
8517fae7 | 1531 | if (bfd_is_abs_section (sec)) |
90ace9e9 JT |
1532 | indx = 0; |
1533 | else if (sec == NULL || sec->owner == NULL) | |
1534 | { | |
1535 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1536 | return FALSE; |
90ace9e9 JT |
1537 | } |
1538 | else | |
1539 | { | |
1540 | asection *osec; | |
1541 | ||
74541ad4 AM |
1542 | /* We are turning this relocation into one |
1543 | against a section symbol. It would be | |
1544 | proper to subtract the symbol's value, | |
1545 | osec->vma, from the emitted reloc addend, | |
1546 | but ld.so expects buggy relocs. */ | |
90ace9e9 JT |
1547 | osec = sec->output_section; |
1548 | indx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
1549 | if (indx == 0) |
1550 | { | |
1551 | struct elf_link_hash_table *htab; | |
1552 | htab = elf_hash_table (info); | |
1553 | osec = htab->text_index_section; | |
1554 | indx = elf_section_data (osec)->dynindx; | |
1555 | } | |
1556 | BFD_ASSERT (indx != 0); | |
90ace9e9 JT |
1557 | } |
1558 | ||
1559 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
1560 | outrel.r_addend = relocation + rel->r_addend; | |
1561 | } | |
1562 | } | |
1563 | ||
ddd74d3c | 1564 | if ((input_section->flags & SEC_CODE) != 0 |
751c1fe7 | 1565 | || (ELF32_R_TYPE (outrel.r_info) != R_VAX_32 |
ddd74d3c MR |
1566 | && ELF32_R_TYPE (outrel.r_info) != R_VAX_RELATIVE |
1567 | && ELF32_R_TYPE (outrel.r_info) != R_VAX_COPY | |
1568 | && ELF32_R_TYPE (outrel.r_info) != R_VAX_JMP_SLOT | |
1569 | && ELF32_R_TYPE (outrel.r_info) != R_VAX_GLOB_DAT)) | |
90ace9e9 JT |
1570 | { |
1571 | if (h != NULL) | |
4eca0228 | 1572 | _bfd_error_handler |
695344c0 | 1573 | /* xgettext:c-format */ |
dae82561 AM |
1574 | (_("%B: warning: %s relocation against symbol `%s'" |
1575 | " from %A section"), | |
1576 | input_bfd, howto->name, h->root.root.string, | |
1577 | input_section); | |
90ace9e9 | 1578 | else |
4eca0228 | 1579 | _bfd_error_handler |
695344c0 | 1580 | /* xgettext:c-format */ |
d42c267e | 1581 | (_("%B: warning: %s relocation to %#Lx from %A section"), |
dae82561 AM |
1582 | input_bfd, howto->name, outrel.r_addend, |
1583 | input_section); | |
90ace9e9 | 1584 | } |
947216bf AM |
1585 | loc = sreloc->contents; |
1586 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1587 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
90ace9e9 JT |
1588 | |
1589 | /* This reloc will be computed at runtime, so there's no | |
1590 | need to do anything now, except for R_VAX_32 | |
1591 | relocations that have been turned into | |
1592 | R_VAX_RELATIVE. */ | |
1593 | if (!relocate) | |
1594 | continue; | |
1595 | } | |
1596 | ||
1597 | break; | |
1598 | ||
1599 | case R_VAX_GNU_VTINHERIT: | |
1600 | case R_VAX_GNU_VTENTRY: | |
1601 | /* These are no-ops in the end. */ | |
1602 | continue; | |
1603 | ||
1604 | default: | |
1605 | break; | |
1606 | } | |
1607 | ||
b34976b6 | 1608 | /* VAX PCREL relocations are from the end of relocation, not the start. |
b29635ba JT |
1609 | So subtract the difference from the relocation amount since we can't |
1610 | add it to the offset. */ | |
90ace9e9 | 1611 | if (howto->pc_relative && howto->pcrel_offset) |
b29635ba | 1612 | relocation -= bfd_get_reloc_size(howto); |
90ace9e9 JT |
1613 | |
1614 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1615 | contents, rel->r_offset, | |
1616 | relocation, rel->r_addend); | |
1617 | ||
1618 | if (r != bfd_reloc_ok) | |
1619 | { | |
1620 | switch (r) | |
1621 | { | |
1622 | default: | |
1623 | case bfd_reloc_outofrange: | |
1624 | abort (); | |
1625 | case bfd_reloc_overflow: | |
1626 | { | |
1627 | const char *name; | |
1628 | ||
1629 | if (h != NULL) | |
dfeffb9f | 1630 | name = NULL; |
90ace9e9 JT |
1631 | else |
1632 | { | |
1633 | name = bfd_elf_string_from_elf_section (input_bfd, | |
1634 | symtab_hdr->sh_link, | |
1635 | sym->st_name); | |
1636 | if (name == NULL) | |
b34976b6 | 1637 | return FALSE; |
90ace9e9 JT |
1638 | if (*name == '\0') |
1639 | name = bfd_section_name (input_bfd, sec); | |
1640 | } | |
1a72702b AM |
1641 | info->callbacks->reloc_overflow |
1642 | (info, (h ? &h->root : NULL), name, howto->name, | |
1643 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
90ace9e9 JT |
1644 | } |
1645 | break; | |
1646 | } | |
1647 | } | |
1648 | } | |
1649 | ||
b34976b6 | 1650 | return TRUE; |
90ace9e9 JT |
1651 | } |
1652 | ||
1653 | /* Finish up dynamic symbol handling. We set the contents of various | |
1654 | dynamic sections here. */ | |
1655 | ||
b34976b6 | 1656 | static bfd_boolean |
ce71b576 NC |
1657 | elf_vax_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, |
1658 | struct elf_link_hash_entry *h, | |
1659 | Elf_Internal_Sym *sym) | |
90ace9e9 JT |
1660 | { |
1661 | bfd *dynobj; | |
1662 | ||
1663 | dynobj = elf_hash_table (info)->dynobj; | |
1664 | ||
1665 | if (h->plt.offset != (bfd_vma) -1) | |
1666 | { | |
1667 | asection *splt; | |
1668 | asection *sgot; | |
1669 | asection *srela; | |
1670 | bfd_vma plt_index; | |
1671 | bfd_vma got_offset; | |
1672 | bfd_vma addend; | |
1673 | Elf_Internal_Rela rela; | |
947216bf | 1674 | bfd_byte *loc; |
90ace9e9 JT |
1675 | |
1676 | /* This symbol has an entry in the procedure linkage table. Set | |
1677 | it up. */ | |
90ace9e9 JT |
1678 | BFD_ASSERT (h->dynindx != -1); |
1679 | ||
ce558b89 AM |
1680 | splt = elf_hash_table (info)->splt; |
1681 | sgot = elf_hash_table (info)->sgotplt; | |
1682 | srela = elf_hash_table (info)->srelplt; | |
90ace9e9 JT |
1683 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
1684 | ||
1685 | addend = 2 * (h->plt.offset & 1); | |
1686 | h->plt.offset &= ~1; | |
1687 | ||
1688 | /* Get the index in the procedure linkage table which | |
1689 | corresponds to this symbol. This is the index of this symbol | |
1690 | in all the symbols for which we are making plt entries. The | |
1691 | first entry in the procedure linkage table is reserved. */ | |
1692 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
1693 | ||
1694 | /* Get the offset into the .got table of the entry that | |
1695 | corresponds to this function. Each .got entry is 4 bytes. | |
1696 | The first two are reserved. */ | |
1697 | got_offset = (plt_index + 3) * 4; | |
1698 | ||
1699 | /* Fill in the entry in the procedure linkage table. */ | |
1700 | memcpy (splt->contents + h->plt.offset, elf_vax_plt_entry, | |
1701 | PLT_ENTRY_SIZE); | |
1702 | ||
1703 | /* The offset is relative to the first extension word. */ | |
1704 | bfd_put_32 (output_bfd, | |
1705 | -(h->plt.offset + 8), | |
1706 | splt->contents + h->plt.offset + 4); | |
1707 | ||
1708 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela), | |
1709 | splt->contents + h->plt.offset + 8); | |
1710 | ||
1711 | /* Fill in the entry in the global offset table. */ | |
1712 | bfd_put_32 (output_bfd, | |
1713 | (splt->output_section->vma | |
1714 | + splt->output_offset | |
1715 | + h->plt.offset) + addend, | |
1716 | sgot->contents + got_offset); | |
1717 | ||
1718 | /* Fill in the entry in the .rela.plt section. */ | |
1719 | rela.r_offset = (sgot->output_section->vma | |
1720 | + sgot->output_offset | |
1721 | + got_offset); | |
1722 | rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_JMP_SLOT); | |
1723 | rela.r_addend = addend; | |
947216bf AM |
1724 | loc = srela->contents + plt_index * sizeof (Elf32_External_Rela); |
1725 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
90ace9e9 | 1726 | |
f5385ebf | 1727 | if (!h->def_regular) |
90ace9e9 JT |
1728 | { |
1729 | /* Mark the symbol as undefined, rather than as defined in | |
1730 | the .plt section. Leave the value alone. */ | |
1731 | sym->st_shndx = SHN_UNDEF; | |
1732 | } | |
1733 | } | |
1734 | ||
1735 | if (h->got.offset != (bfd_vma) -1) | |
1736 | { | |
1737 | asection *sgot; | |
1738 | asection *srela; | |
1739 | Elf_Internal_Rela rela; | |
947216bf | 1740 | bfd_byte *loc; |
90ace9e9 JT |
1741 | |
1742 | /* This symbol has an entry in the global offset table. Set it | |
1743 | up. */ | |
ce558b89 AM |
1744 | sgot = elf_hash_table (info)->sgot; |
1745 | srela = elf_hash_table (info)->srelgot; | |
90ace9e9 JT |
1746 | BFD_ASSERT (sgot != NULL && srela != NULL); |
1747 | ||
1748 | rela.r_offset = (sgot->output_section->vma | |
1749 | + sgot->output_offset | |
125b5bac MR |
1750 | + h->got.offset); |
1751 | rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_GLOB_DAT); | |
90ace9e9 | 1752 | rela.r_addend = bfd_get_signed_32 (output_bfd, |
125b5bac | 1753 | sgot->contents + h->got.offset); |
90ace9e9 | 1754 | |
947216bf AM |
1755 | loc = srela->contents; |
1756 | loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); | |
1757 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
90ace9e9 JT |
1758 | } |
1759 | ||
f5385ebf | 1760 | if (h->needs_copy) |
90ace9e9 JT |
1761 | { |
1762 | asection *s; | |
1763 | Elf_Internal_Rela rela; | |
947216bf | 1764 | bfd_byte *loc; |
90ace9e9 JT |
1765 | |
1766 | /* This symbol needs a copy reloc. Set it up. */ | |
90ace9e9 JT |
1767 | BFD_ASSERT (h->dynindx != -1 |
1768 | && (h->root.type == bfd_link_hash_defined | |
1769 | || h->root.type == bfd_link_hash_defweak)); | |
1770 | ||
3d4d4302 | 1771 | s = bfd_get_linker_section (dynobj, ".rela.bss"); |
90ace9e9 JT |
1772 | BFD_ASSERT (s != NULL); |
1773 | ||
1774 | rela.r_offset = (h->root.u.def.value | |
1775 | + h->root.u.def.section->output_section->vma | |
1776 | + h->root.u.def.section->output_offset); | |
1777 | rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_COPY); | |
1778 | rela.r_addend = 0; | |
947216bf AM |
1779 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
1780 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
90ace9e9 JT |
1781 | } |
1782 | ||
1783 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
9637f6ef | 1784 | if (h == elf_hash_table (info)->hdynamic |
22edb2f1 | 1785 | || h == elf_hash_table (info)->hgot) |
90ace9e9 JT |
1786 | sym->st_shndx = SHN_ABS; |
1787 | ||
b34976b6 | 1788 | return TRUE; |
90ace9e9 JT |
1789 | } |
1790 | ||
1791 | /* Finish up the dynamic sections. */ | |
1792 | ||
b34976b6 | 1793 | static bfd_boolean |
ce71b576 | 1794 | elf_vax_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
90ace9e9 JT |
1795 | { |
1796 | bfd *dynobj; | |
1797 | asection *sgot; | |
1798 | asection *sdyn; | |
1799 | ||
1800 | dynobj = elf_hash_table (info)->dynobj; | |
1801 | ||
ce558b89 | 1802 | sgot = elf_hash_table (info)->sgotplt; |
90ace9e9 | 1803 | BFD_ASSERT (sgot != NULL); |
3d4d4302 | 1804 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
90ace9e9 JT |
1805 | |
1806 | if (elf_hash_table (info)->dynamic_sections_created) | |
1807 | { | |
1808 | asection *splt; | |
1809 | Elf32_External_Dyn *dyncon, *dynconend; | |
1810 | ||
ce558b89 | 1811 | splt = elf_hash_table (info)->splt; |
90ace9e9 JT |
1812 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
1813 | ||
1814 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 1815 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
90ace9e9 JT |
1816 | for (; dyncon < dynconend; dyncon++) |
1817 | { | |
1818 | Elf_Internal_Dyn dyn; | |
90ace9e9 JT |
1819 | asection *s; |
1820 | ||
1821 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
1822 | ||
1823 | switch (dyn.d_tag) | |
1824 | { | |
1825 | default: | |
1826 | break; | |
1827 | ||
1828 | case DT_PLTGOT: | |
ce558b89 | 1829 | s = elf_hash_table (info)->sgotplt; |
90ace9e9 JT |
1830 | goto get_vma; |
1831 | case DT_JMPREL: | |
ce558b89 | 1832 | s = elf_hash_table (info)->srelplt; |
90ace9e9 | 1833 | get_vma: |
4ade44b7 | 1834 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
90ace9e9 JT |
1835 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
1836 | break; | |
1837 | ||
1838 | case DT_PLTRELSZ: | |
ce558b89 | 1839 | s = elf_hash_table (info)->srelplt; |
eea6121a | 1840 | dyn.d_un.d_val = s->size; |
90ace9e9 JT |
1841 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
1842 | break; | |
90ace9e9 JT |
1843 | } |
1844 | } | |
1845 | ||
1846 | /* Fill in the first entry in the procedure linkage table. */ | |
eea6121a | 1847 | if (splt->size > 0) |
90ace9e9 JT |
1848 | { |
1849 | memcpy (splt->contents, elf_vax_plt0_entry, PLT_ENTRY_SIZE); | |
1850 | bfd_put_32 (output_bfd, | |
1851 | (sgot->output_section->vma | |
1852 | + sgot->output_offset + 4 | |
1853 | - (splt->output_section->vma + 6)), | |
1854 | splt->contents + 2); | |
1855 | bfd_put_32 (output_bfd, | |
1856 | (sgot->output_section->vma | |
1857 | + sgot->output_offset + 8 | |
1858 | - (splt->output_section->vma + 12)), | |
1859 | splt->contents + 8); | |
cedb70c5 | 1860 | elf_section_data (splt->output_section)->this_hdr.sh_entsize |
90ace9e9 JT |
1861 | = PLT_ENTRY_SIZE; |
1862 | } | |
1863 | } | |
1864 | ||
1865 | /* Fill in the first three entries in the global offset table. */ | |
eea6121a | 1866 | if (sgot->size > 0) |
90ace9e9 JT |
1867 | { |
1868 | if (sdyn == NULL) | |
1869 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
1870 | else | |
1871 | bfd_put_32 (output_bfd, | |
1872 | sdyn->output_section->vma + sdyn->output_offset, | |
1873 | sgot->contents); | |
1874 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
1875 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
1876 | } | |
1877 | ||
f6518c48 MR |
1878 | if (elf_section_data (sgot->output_section) != NULL) |
1879 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
90ace9e9 | 1880 | |
b34976b6 | 1881 | return TRUE; |
90ace9e9 JT |
1882 | } |
1883 | ||
9b90d8fd | 1884 | static enum elf_reloc_type_class |
7e612e98 AM |
1885 | elf_vax_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1886 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
1887 | const Elf_Internal_Rela *rela) | |
9b90d8fd MR |
1888 | { |
1889 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
1890 | { | |
1891 | case R_VAX_RELATIVE: | |
1892 | return reloc_class_relative; | |
1893 | case R_VAX_JMP_SLOT: | |
1894 | return reloc_class_plt; | |
1895 | case R_VAX_COPY: | |
1896 | return reloc_class_copy; | |
1897 | default: | |
1898 | return reloc_class_normal; | |
1899 | } | |
1900 | } | |
1901 | ||
6db7e006 MR |
1902 | static bfd_vma |
1903 | elf_vax_plt_sym_val (bfd_vma i, const asection *plt, | |
1904 | const arelent *rel ATTRIBUTE_UNUSED) | |
1905 | { | |
1906 | return plt->vma + (i + 1) * PLT_ENTRY_SIZE; | |
1907 | } | |
1908 | ||
6d00b590 | 1909 | #define TARGET_LITTLE_SYM vax_elf32_vec |
90ace9e9 JT |
1910 | #define TARGET_LITTLE_NAME "elf32-vax" |
1911 | #define ELF_MACHINE_CODE EM_VAX | |
1912 | #define ELF_MAXPAGESIZE 0x1000 | |
1913 | ||
1914 | #define elf_backend_create_dynamic_sections \ | |
1915 | _bfd_elf_create_dynamic_sections | |
1916 | #define bfd_elf32_bfd_link_hash_table_create \ | |
1917 | elf_vax_link_hash_table_create | |
c152c796 | 1918 | #define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link |
90ace9e9 JT |
1919 | |
1920 | #define elf_backend_check_relocs elf_vax_check_relocs | |
1921 | #define elf_backend_adjust_dynamic_symbol \ | |
1922 | elf_vax_adjust_dynamic_symbol | |
fac3d241 MR |
1923 | #define elf_backend_always_size_sections \ |
1924 | elf_vax_always_size_sections | |
90ace9e9 JT |
1925 | #define elf_backend_size_dynamic_sections \ |
1926 | elf_vax_size_dynamic_sections | |
74541ad4 | 1927 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
90ace9e9 JT |
1928 | #define elf_backend_relocate_section elf_vax_relocate_section |
1929 | #define elf_backend_finish_dynamic_symbol \ | |
1930 | elf_vax_finish_dynamic_symbol | |
1931 | #define elf_backend_finish_dynamic_sections \ | |
1932 | elf_vax_finish_dynamic_sections | |
9b90d8fd | 1933 | #define elf_backend_reloc_type_class elf_vax_reloc_type_class |
90ace9e9 | 1934 | #define elf_backend_gc_mark_hook elf_vax_gc_mark_hook |
6db7e006 | 1935 | #define elf_backend_plt_sym_val elf_vax_plt_sym_val |
90ace9e9 JT |
1936 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
1937 | elf32_vax_merge_private_bfd_data | |
1938 | #define bfd_elf32_bfd_set_private_flags \ | |
1939 | elf32_vax_set_private_flags | |
1940 | #define bfd_elf32_bfd_print_private_bfd_data \ | |
1941 | elf32_vax_print_private_bfd_data | |
1942 | ||
1943 | #define elf_backend_can_gc_sections 1 | |
1944 | #define elf_backend_want_got_plt 1 | |
1945 | #define elf_backend_plt_readonly 1 | |
1946 | #define elf_backend_want_plt_sym 0 | |
1947 | #define elf_backend_got_header_size 16 | |
f0fe0e16 | 1948 | #define elf_backend_rela_normal 1 |
64f52338 | 1949 | #define elf_backend_dtrel_excludes_plt 1 |
90ace9e9 JT |
1950 | |
1951 | #include "elf32-target.h" |