Commit | Line | Data |
---|---|---|
5b93d8bb | 1 | /* i370-specific support for 32-bit ELF |
47b0e7ad | 2 | Copyright 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005 |
7898deda | 3 | Free Software Foundation, Inc. |
5b93d8bb AM |
4 | Written by Ian Lance Taylor, Cygnus Support. |
5 | Hacked by Linas Vepstas for i370 linas@linas.org | |
6 | ||
47b0e7ad | 7 | This file is part of BFD, the Binary File Descriptor library. |
5b93d8bb | 8 | |
47b0e7ad NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
5b93d8bb | 13 | |
47b0e7ad NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
5b93d8bb | 18 | |
47b0e7ad NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
22 | MA 02110-1301, USA. */ | |
5b93d8bb | 23 | |
5b93d8bb AM |
24 | /* This file is based on a preliminary PowerPC ELF ABI. |
25 | But its been hacked on for the IBM 360/370 architectures. | |
26 | Basically, the 31bit relocation works, and just about everything | |
27 | else is a wild card. In particular, don't expect shared libs or | |
47b0e7ad | 28 | dynamic loading to work ... its never been tested. */ |
5b93d8bb | 29 | |
5b93d8bb AM |
30 | #include "bfd.h" |
31 | #include "sysdep.h" | |
32 | #include "bfdlink.h" | |
33 | #include "libbfd.h" | |
34 | #include "elf-bfd.h" | |
35 | #include "elf/i370.h" | |
36 | ||
5b93d8bb AM |
37 | static reloc_howto_type *i370_elf_howto_table[ (int)R_I370_max ]; |
38 | ||
39 | static reloc_howto_type i370_elf_howto_raw[] = | |
40 | { | |
41 | /* This reloc does nothing. */ | |
42 | HOWTO (R_I370_NONE, /* type */ | |
43 | 0, /* rightshift */ | |
44 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
45 | 32, /* bitsize */ | |
b34976b6 | 46 | FALSE, /* pc_relative */ |
5b93d8bb AM |
47 | 0, /* bitpos */ |
48 | complain_overflow_bitfield, /* complain_on_overflow */ | |
49 | bfd_elf_generic_reloc, /* special_function */ | |
50 | "R_I370_NONE", /* name */ | |
b34976b6 | 51 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
52 | 0, /* src_mask */ |
53 | 0, /* dst_mask */ | |
b34976b6 | 54 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
55 | |
56 | /* A standard 31 bit relocation. */ | |
57 | HOWTO (R_I370_ADDR31, /* type */ | |
58 | 0, /* rightshift */ | |
59 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
60 | 31, /* bitsize */ | |
b34976b6 | 61 | FALSE, /* pc_relative */ |
5b93d8bb AM |
62 | 0, /* bitpos */ |
63 | complain_overflow_bitfield, /* complain_on_overflow */ | |
64 | bfd_elf_generic_reloc, /* special_function */ | |
65 | "R_I370_ADDR31", /* name */ | |
b34976b6 | 66 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
67 | 0, /* src_mask */ |
68 | 0x7fffffff, /* dst_mask */ | |
b34976b6 | 69 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
70 | |
71 | /* A standard 32 bit relocation. */ | |
72 | HOWTO (R_I370_ADDR32, /* type */ | |
73 | 0, /* rightshift */ | |
74 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
75 | 32, /* bitsize */ | |
b34976b6 | 76 | FALSE, /* pc_relative */ |
5b93d8bb AM |
77 | 0, /* bitpos */ |
78 | complain_overflow_bitfield, /* complain_on_overflow */ | |
79 | bfd_elf_generic_reloc, /* special_function */ | |
80 | "R_I370_ADDR32", /* name */ | |
b34976b6 | 81 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
82 | 0, /* src_mask */ |
83 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 84 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
85 | |
86 | /* A standard 16 bit relocation. */ | |
87 | HOWTO (R_I370_ADDR16, /* type */ | |
88 | 0, /* rightshift */ | |
89 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
90 | 16, /* bitsize */ | |
b34976b6 | 91 | FALSE, /* pc_relative */ |
5b93d8bb AM |
92 | 0, /* bitpos */ |
93 | complain_overflow_bitfield, /* complain_on_overflow */ | |
94 | bfd_elf_generic_reloc, /* special_function */ | |
95 | "R_I370_ADDR16", /* name */ | |
b34976b6 | 96 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
97 | 0, /* src_mask */ |
98 | 0xffff, /* dst_mask */ | |
b34976b6 | 99 | FALSE), /* pcrel_offset */ |
5b93d8bb | 100 | |
47b0e7ad | 101 | /* 31-bit PC relative. */ |
5b93d8bb AM |
102 | HOWTO (R_I370_REL31, /* type */ |
103 | 0, /* rightshift */ | |
104 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
105 | 31, /* bitsize */ | |
b34976b6 | 106 | TRUE, /* pc_relative */ |
5b93d8bb AM |
107 | 0, /* bitpos */ |
108 | complain_overflow_bitfield, /* complain_on_overflow */ | |
109 | bfd_elf_generic_reloc, /* special_function */ | |
110 | "R_I370_REL31", /* name */ | |
b34976b6 | 111 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
112 | 0, /* src_mask */ |
113 | 0x7fffffff, /* dst_mask */ | |
b34976b6 | 114 | TRUE), /* pcrel_offset */ |
5b93d8bb | 115 | |
47b0e7ad | 116 | /* 32-bit PC relative. */ |
5b93d8bb AM |
117 | HOWTO (R_I370_REL32, /* type */ |
118 | 0, /* rightshift */ | |
119 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
120 | 32, /* bitsize */ | |
b34976b6 | 121 | TRUE, /* pc_relative */ |
5b93d8bb AM |
122 | 0, /* bitpos */ |
123 | complain_overflow_bitfield, /* complain_on_overflow */ | |
124 | bfd_elf_generic_reloc, /* special_function */ | |
125 | "R_I370_REL32", /* name */ | |
b34976b6 | 126 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
127 | 0, /* src_mask */ |
128 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 129 | TRUE), /* pcrel_offset */ |
5b93d8bb AM |
130 | |
131 | /* A standard 12 bit relocation. */ | |
132 | HOWTO (R_I370_ADDR12, /* type */ | |
133 | 0, /* rightshift */ | |
134 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
135 | 12, /* bitsize */ | |
b34976b6 | 136 | FALSE, /* pc_relative */ |
5b93d8bb AM |
137 | 0, /* bitpos */ |
138 | complain_overflow_bitfield, /* complain_on_overflow */ | |
139 | bfd_elf_generic_reloc, /* special_function */ | |
140 | "R_I370_ADDR12", /* name */ | |
b34976b6 | 141 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
142 | 0, /* src_mask */ |
143 | 0xfff, /* dst_mask */ | |
b34976b6 | 144 | FALSE), /* pcrel_offset */ |
5b93d8bb | 145 | |
47b0e7ad | 146 | /* 12-bit PC relative. */ |
5b93d8bb AM |
147 | HOWTO (R_I370_REL12, /* type */ |
148 | 0, /* rightshift */ | |
149 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
150 | 12, /* bitsize */ | |
b34976b6 | 151 | TRUE, /* pc_relative */ |
5b93d8bb AM |
152 | 0, /* bitpos */ |
153 | complain_overflow_bitfield, /* complain_on_overflow */ | |
154 | bfd_elf_generic_reloc, /* special_function */ | |
155 | "R_I370_REL12", /* name */ | |
b34976b6 | 156 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
157 | 0, /* src_mask */ |
158 | 0xfff, /* dst_mask */ | |
b34976b6 | 159 | TRUE), /* pcrel_offset */ |
5b93d8bb AM |
160 | |
161 | /* A standard 8 bit relocation. */ | |
162 | HOWTO (R_I370_ADDR8, /* type */ | |
163 | 0, /* rightshift */ | |
164 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
165 | 8, /* bitsize */ | |
b34976b6 | 166 | FALSE, /* pc_relative */ |
5b93d8bb AM |
167 | 0, /* bitpos */ |
168 | complain_overflow_bitfield, /* complain_on_overflow */ | |
169 | bfd_elf_generic_reloc, /* special_function */ | |
170 | "R_I370_ADDR8", /* name */ | |
b34976b6 | 171 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
172 | 0, /* src_mask */ |
173 | 0xff, /* dst_mask */ | |
b34976b6 | 174 | FALSE), /* pcrel_offset */ |
5b93d8bb | 175 | |
47b0e7ad | 176 | /* 8-bit PC relative. */ |
5b93d8bb AM |
177 | HOWTO (R_I370_REL8, /* type */ |
178 | 0, /* rightshift */ | |
179 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
180 | 8, /* bitsize */ | |
b34976b6 | 181 | TRUE, /* pc_relative */ |
5b93d8bb AM |
182 | 0, /* bitpos */ |
183 | complain_overflow_bitfield, /* complain_on_overflow */ | |
184 | bfd_elf_generic_reloc, /* special_function */ | |
185 | "R_I370_REL8", /* name */ | |
b34976b6 | 186 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
187 | 0, /* src_mask */ |
188 | 0xff, /* dst_mask */ | |
b34976b6 | 189 | TRUE), /* pcrel_offset */ |
5b93d8bb AM |
190 | |
191 | /* This is used only by the dynamic linker. The symbol should exist | |
192 | both in the object being run and in some shared library. The | |
193 | dynamic linker copies the data addressed by the symbol from the | |
194 | shared library into the object, because the object being | |
195 | run has to have the data at some particular address. */ | |
196 | HOWTO (R_I370_COPY, /* type */ | |
197 | 0, /* rightshift */ | |
198 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
199 | 32, /* bitsize */ | |
b34976b6 | 200 | FALSE, /* pc_relative */ |
5b93d8bb AM |
201 | 0, /* bitpos */ |
202 | complain_overflow_bitfield, /* complain_on_overflow */ | |
203 | bfd_elf_generic_reloc, /* special_function */ | |
204 | "R_I370_COPY", /* name */ | |
b34976b6 | 205 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
206 | 0, /* src_mask */ |
207 | 0, /* dst_mask */ | |
b34976b6 | 208 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
209 | |
210 | /* Used only by the dynamic linker. When the object is run, this | |
211 | longword is set to the load address of the object, plus the | |
212 | addend. */ | |
213 | HOWTO (R_I370_RELATIVE, /* type */ | |
214 | 0, /* rightshift */ | |
215 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
216 | 32, /* bitsize */ | |
b34976b6 | 217 | FALSE, /* pc_relative */ |
5b93d8bb AM |
218 | 0, /* bitpos */ |
219 | complain_overflow_bitfield, /* complain_on_overflow */ | |
220 | bfd_elf_generic_reloc, /* special_function */ | |
221 | "R_I370_RELATIVE", /* name */ | |
b34976b6 | 222 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
223 | 0, /* src_mask */ |
224 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 225 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
226 | |
227 | }; | |
5b93d8bb | 228 | \f |
5b93d8bb AM |
229 | /* Initialize the i370_elf_howto_table, so that linear accesses can be done. */ |
230 | ||
231 | static void | |
47b0e7ad | 232 | i370_elf_howto_init (void) |
5b93d8bb AM |
233 | { |
234 | unsigned int i, type; | |
235 | ||
236 | for (i = 0; i < sizeof (i370_elf_howto_raw) / sizeof (i370_elf_howto_raw[0]); i++) | |
237 | { | |
238 | type = i370_elf_howto_raw[i].type; | |
6609fa74 | 239 | BFD_ASSERT (type < sizeof (i370_elf_howto_table) / sizeof (i370_elf_howto_table[0])); |
5b93d8bb AM |
240 | i370_elf_howto_table[type] = &i370_elf_howto_raw[i]; |
241 | } | |
242 | } | |
47b0e7ad | 243 | |
5b93d8bb | 244 | static reloc_howto_type * |
47b0e7ad NC |
245 | i370_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
246 | bfd_reloc_code_real_type code) | |
5b93d8bb AM |
247 | { |
248 | enum i370_reloc_type i370_reloc = R_I370_NONE; | |
249 | ||
47b0e7ad NC |
250 | if (!i370_elf_howto_table[ R_I370_ADDR31 ]) |
251 | /* Initialize howto table if needed. */ | |
5b93d8bb AM |
252 | i370_elf_howto_init (); |
253 | ||
47b0e7ad | 254 | switch ((int) code) |
5b93d8bb AM |
255 | { |
256 | default: | |
47b0e7ad | 257 | return NULL; |
5b93d8bb AM |
258 | |
259 | case BFD_RELOC_NONE: i370_reloc = R_I370_NONE; break; | |
260 | case BFD_RELOC_32: i370_reloc = R_I370_ADDR31; break; | |
261 | case BFD_RELOC_16: i370_reloc = R_I370_ADDR16; break; | |
262 | case BFD_RELOC_32_PCREL: i370_reloc = R_I370_REL31; break; | |
263 | case BFD_RELOC_CTOR: i370_reloc = R_I370_ADDR31; break; | |
264 | case BFD_RELOC_I370_D12: i370_reloc = R_I370_ADDR12; break; | |
265 | } | |
266 | ||
267 | return i370_elf_howto_table[ (int)i370_reloc ]; | |
268 | }; | |
269 | ||
5b93d8bb AM |
270 | /* The name of the dynamic interpreter. This is put in the .interp |
271 | section. */ | |
272 | ||
273 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so" | |
274 | ||
5b93d8bb AM |
275 | /* Set the howto pointer for an i370 ELF reloc. */ |
276 | ||
277 | static void | |
47b0e7ad NC |
278 | i370_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
279 | arelent *cache_ptr, | |
280 | Elf_Internal_Rela *dst) | |
5b93d8bb | 281 | { |
47b0e7ad NC |
282 | if (!i370_elf_howto_table[ R_I370_ADDR31 ]) |
283 | /* Initialize howto table. */ | |
5b93d8bb AM |
284 | i370_elf_howto_init (); |
285 | ||
286 | BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_I370_max); | |
287 | cache_ptr->howto = i370_elf_howto_table[ELF32_R_TYPE (dst->r_info)]; | |
288 | } | |
289 | ||
47b0e7ad NC |
290 | /* Hack alert -- the following several routines look generic to me ... |
291 | why are we bothering with them ? */ | |
6609fa74 | 292 | /* Function to set whether a module needs the -mrelocatable bit set. */ |
47b0e7ad | 293 | |
b34976b6 | 294 | static bfd_boolean |
47b0e7ad | 295 | i370_elf_set_private_flags (bfd *abfd, flagword flags) |
5b93d8bb AM |
296 | { |
297 | BFD_ASSERT (!elf_flags_init (abfd) | |
298 | || elf_elfheader (abfd)->e_flags == flags); | |
299 | ||
300 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
301 | elf_flags_init (abfd) = TRUE; |
302 | return TRUE; | |
5b93d8bb AM |
303 | } |
304 | ||
5b93d8bb | 305 | /* Merge backend specific data from an object file to the output |
47b0e7ad NC |
306 | object file when linking. */ |
307 | ||
b34976b6 | 308 | static bfd_boolean |
47b0e7ad | 309 | i370_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
5b93d8bb AM |
310 | { |
311 | flagword old_flags; | |
312 | flagword new_flags; | |
313 | ||
314 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
315 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 316 | return TRUE; |
5b93d8bb AM |
317 | |
318 | new_flags = elf_elfheader (ibfd)->e_flags; | |
319 | old_flags = elf_elfheader (obfd)->e_flags; | |
47b0e7ad | 320 | if (!elf_flags_init (obfd)) /* First call, no flags set. */ |
5b93d8bb | 321 | { |
b34976b6 | 322 | elf_flags_init (obfd) = TRUE; |
5b93d8bb AM |
323 | elf_elfheader (obfd)->e_flags = new_flags; |
324 | } | |
325 | ||
47b0e7ad | 326 | else if (new_flags == old_flags) /* Compatible flags are ok. */ |
5b93d8bb AM |
327 | ; |
328 | ||
47b0e7ad | 329 | else /* Incompatible flags. */ |
5b93d8bb AM |
330 | { |
331 | (*_bfd_error_handler) | |
d003868e AM |
332 | ("%B: uses different e_flags (0x%lx) fields than previous modules (0x%lx)", |
333 | ibfd, (long) new_flags, (long) old_flags); | |
5b93d8bb AM |
334 | |
335 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 336 | return FALSE; |
5b93d8bb AM |
337 | } |
338 | ||
b34976b6 | 339 | return TRUE; |
5b93d8bb | 340 | } |
5b93d8bb AM |
341 | \f |
342 | /* Handle an i370 specific section when reading an object file. This | |
343 | is called when elfcode.h finds a section with an unknown type. */ | |
344 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
345 | certainly does the wrong thing. Its here simply because it does |
346 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 347 | |
b34976b6 | 348 | static bfd_boolean |
6dc132d9 L |
349 | i370_elf_section_from_shdr (bfd *abfd, |
350 | Elf_Internal_Shdr *hdr, | |
351 | const char *name, | |
352 | int shindex) | |
5b93d8bb AM |
353 | { |
354 | asection *newsect; | |
355 | flagword flags; | |
356 | ||
6dc132d9 | 357 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 358 | return FALSE; |
5b93d8bb AM |
359 | |
360 | newsect = hdr->bfd_section; | |
361 | flags = bfd_get_section_flags (abfd, newsect); | |
362 | if (hdr->sh_flags & SHF_EXCLUDE) | |
363 | flags |= SEC_EXCLUDE; | |
364 | ||
365 | if (hdr->sh_type == SHT_ORDERED) | |
366 | flags |= SEC_SORT_ENTRIES; | |
367 | ||
368 | bfd_set_section_flags (abfd, newsect, flags); | |
b34976b6 | 369 | return TRUE; |
5b93d8bb | 370 | } |
5b93d8bb AM |
371 | \f |
372 | /* Set up any other section flags and such that may be necessary. */ | |
373 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
374 | certainly does the wrong thing. Its here simply because it does |
375 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 376 | |
b34976b6 | 377 | static bfd_boolean |
47b0e7ad NC |
378 | i370_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, |
379 | Elf_Internal_Shdr *shdr, | |
380 | asection *asect) | |
5b93d8bb AM |
381 | { |
382 | if ((asect->flags & SEC_EXCLUDE) != 0) | |
383 | shdr->sh_flags |= SHF_EXCLUDE; | |
384 | ||
385 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) | |
386 | shdr->sh_type = SHT_ORDERED; | |
387 | ||
b34976b6 | 388 | return TRUE; |
5b93d8bb | 389 | } |
5b93d8bb | 390 | \f |
5b93d8bb AM |
391 | /* We have to create .dynsbss and .rela.sbss here so that they get mapped |
392 | to output sections (just like _bfd_elf_create_dynamic_sections has | |
393 | to create .dynbss and .rela.bss). */ | |
394 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
395 | certainly does the wrong thing. Its here simply because it does |
396 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 397 | |
b34976b6 | 398 | static bfd_boolean |
47b0e7ad | 399 | i370_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
5b93d8bb | 400 | { |
47b0e7ad | 401 | asection *s; |
5b93d8bb AM |
402 | flagword flags; |
403 | ||
404 | if (!_bfd_elf_create_dynamic_sections(abfd, info)) | |
b34976b6 | 405 | return FALSE; |
5b93d8bb AM |
406 | |
407 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
408 | | SEC_LINKER_CREATED); | |
409 | ||
3496cb2a L |
410 | s = bfd_make_section_with_flags (abfd, ".dynsbss", |
411 | SEC_ALLOC | SEC_LINKER_CREATED); | |
412 | if (s == NULL) | |
b34976b6 | 413 | return FALSE; |
5b93d8bb AM |
414 | |
415 | if (! info->shared) | |
416 | { | |
3496cb2a L |
417 | s = bfd_make_section_with_flags (abfd, ".rela.sbss", |
418 | flags | SEC_READONLY); | |
5b93d8bb | 419 | if (s == NULL |
5b93d8bb | 420 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 421 | return FALSE; |
5b93d8bb AM |
422 | } |
423 | ||
47b0e7ad | 424 | /* XXX beats me, seem to need a rela.text ... */ |
3496cb2a L |
425 | s = bfd_make_section_with_flags (abfd, ".rela.text", |
426 | flags | SEC_READONLY); | |
5b93d8bb | 427 | if (s == NULL |
5b93d8bb | 428 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 AM |
429 | return FALSE; |
430 | return TRUE; | |
5b93d8bb AM |
431 | } |
432 | ||
433 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
434 | regular object. The current definition is in some section of the | |
435 | dynamic object, but we're not including those sections. We have to | |
436 | change the definition to something the rest of the link can | |
437 | understand. */ | |
438 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
439 | certainly does the wrong thing. Its here simply because it does |
440 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 441 | |
b34976b6 | 442 | static bfd_boolean |
47b0e7ad NC |
443 | i370_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
444 | struct elf_link_hash_entry *h) | |
5b93d8bb AM |
445 | { |
446 | bfd *dynobj = elf_hash_table (info)->dynobj; | |
447 | asection *s; | |
448 | unsigned int power_of_two; | |
5b93d8bb AM |
449 | |
450 | #ifdef DEBUG | |
451 | fprintf (stderr, "i370_elf_adjust_dynamic_symbol called for %s\n", | |
452 | h->root.root.string); | |
453 | #endif | |
454 | ||
455 | /* Make sure we know what is going on here. */ | |
456 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 457 | && (h->needs_plt |
f6e332e6 | 458 | || h->u.weakdef != NULL |
f5385ebf AM |
459 | || (h->def_dynamic |
460 | && h->ref_regular | |
461 | && !h->def_regular))); | |
5b93d8bb | 462 | |
5b93d8bb AM |
463 | s = bfd_get_section_by_name (dynobj, ".rela.text"); |
464 | BFD_ASSERT (s != NULL); | |
eea6121a | 465 | s->size += sizeof (Elf32_External_Rela); |
5b93d8bb AM |
466 | |
467 | /* If this is a weak symbol, and there is a real definition, the | |
468 | processor independent code will have arranged for us to see the | |
469 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 470 | if (h->u.weakdef != NULL) |
5b93d8bb | 471 | { |
f6e332e6 AM |
472 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
473 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
474 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
475 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
b34976b6 | 476 | return TRUE; |
5b93d8bb AM |
477 | } |
478 | ||
479 | /* This is a reference to a symbol defined by a dynamic object which | |
480 | is not a function. */ | |
481 | ||
482 | /* If we are creating a shared library, we must presume that the | |
483 | only references to the symbol are via the global offset table. | |
484 | For such cases we need not do anything here; the relocations will | |
485 | be handled correctly by relocate_section. */ | |
486 | if (info->shared) | |
b34976b6 | 487 | return TRUE; |
5b93d8bb AM |
488 | |
489 | /* We must allocate the symbol in our .dynbss section, which will | |
490 | become part of the .bss section of the executable. There will be | |
491 | an entry for this symbol in the .dynsym section. The dynamic | |
492 | object will contain position independent code, so all references | |
493 | from the dynamic object to this symbol will go through the global | |
494 | offset table. The dynamic linker will use the .dynsym entry to | |
495 | determine the address it must put in the global offset table, so | |
496 | both the dynamic object and the regular object will refer to the | |
497 | same memory location for the variable. | |
498 | ||
499 | Of course, if the symbol is sufficiently small, we must instead | |
500 | allocate it in .sbss. FIXME: It would be better to do this if and | |
501 | only if there were actually SDAREL relocs for that symbol. */ | |
502 | ||
503 | if (h->size <= elf_gp_size (dynobj)) | |
504 | s = bfd_get_section_by_name (dynobj, ".dynsbss"); | |
505 | else | |
506 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
507 | BFD_ASSERT (s != NULL); | |
508 | ||
509 | /* We must generate a R_I370_COPY reloc to tell the dynamic linker to | |
510 | copy the initial value out of the dynamic object and into the | |
511 | runtime process image. We need to remember the offset into the | |
512 | .rela.bss section we are going to use. */ | |
513 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
514 | { | |
515 | asection *srel; | |
516 | ||
517 | if (h->size <= elf_gp_size (dynobj)) | |
518 | srel = bfd_get_section_by_name (dynobj, ".rela.sbss"); | |
519 | else | |
520 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
521 | BFD_ASSERT (srel != NULL); | |
eea6121a | 522 | srel->size += sizeof (Elf32_External_Rela); |
f5385ebf | 523 | h->needs_copy = 1; |
5b93d8bb AM |
524 | } |
525 | ||
526 | /* We need to figure out the alignment required for this symbol. I | |
527 | have no idea how ELF linkers handle this. */ | |
528 | power_of_two = bfd_log2 (h->size); | |
529 | if (power_of_two > 4) | |
530 | power_of_two = 4; | |
531 | ||
532 | /* Apply the required alignment. */ | |
eea6121a | 533 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
5b93d8bb AM |
534 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
535 | { | |
536 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
b34976b6 | 537 | return FALSE; |
5b93d8bb AM |
538 | } |
539 | ||
540 | /* Define the symbol as being at this point in the section. */ | |
541 | h->root.u.def.section = s; | |
eea6121a | 542 | h->root.u.def.value = s->size; |
5b93d8bb AM |
543 | |
544 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 545 | s->size += h->size; |
5b93d8bb | 546 | |
b34976b6 | 547 | return TRUE; |
5b93d8bb | 548 | } |
5b93d8bb AM |
549 | \f |
550 | /* Increment the index of a dynamic symbol by a given amount. Called | |
551 | via elf_link_hash_traverse. */ | |
552 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
553 | certainly does the wrong thing. Its here simply because it does |
554 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 555 | |
b34976b6 | 556 | static bfd_boolean |
47b0e7ad | 557 | i370_elf_adjust_dynindx (struct elf_link_hash_entry *h, void * cparg) |
5b93d8bb AM |
558 | { |
559 | int *cp = (int *) cparg; | |
560 | ||
561 | #ifdef DEBUG | |
562 | fprintf (stderr, | |
563 | "i370_elf_adjust_dynindx called, h->dynindx = %d, *cp = %d\n", | |
564 | h->dynindx, *cp); | |
565 | #endif | |
566 | ||
e92d460e AM |
567 | if (h->root.type == bfd_link_hash_warning) |
568 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
569 | ||
5b93d8bb AM |
570 | if (h->dynindx != -1) |
571 | h->dynindx += *cp; | |
572 | ||
b34976b6 | 573 | return TRUE; |
5b93d8bb | 574 | } |
5b93d8bb AM |
575 | \f |
576 | /* Set the sizes of the dynamic sections. */ | |
577 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
578 | certainly does the wrong thing. Its here simply because it does |
579 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 580 | |
b34976b6 | 581 | static bfd_boolean |
47b0e7ad NC |
582 | i370_elf_size_dynamic_sections (bfd *output_bfd, |
583 | struct bfd_link_info *info) | |
5b93d8bb AM |
584 | { |
585 | bfd *dynobj; | |
586 | asection *s; | |
b34976b6 AM |
587 | bfd_boolean plt; |
588 | bfd_boolean relocs; | |
589 | bfd_boolean reltext; | |
5b93d8bb AM |
590 | |
591 | #ifdef DEBUG | |
592 | fprintf (stderr, "i370_elf_size_dynamic_sections called\n"); | |
593 | #endif | |
594 | ||
595 | dynobj = elf_hash_table (info)->dynobj; | |
596 | BFD_ASSERT (dynobj != NULL); | |
597 | ||
598 | if (elf_hash_table (info)->dynamic_sections_created) | |
599 | { | |
600 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 601 | if (info->executable) |
5b93d8bb AM |
602 | { |
603 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
604 | BFD_ASSERT (s != NULL); | |
eea6121a | 605 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
5b93d8bb AM |
606 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
607 | } | |
608 | } | |
609 | else | |
610 | { | |
611 | /* We may have created entries in the .rela.got, .rela.sdata, and | |
612 | .rela.sdata2 sections. However, if we are not creating the | |
613 | dynamic sections, we will not actually use these entries. Reset | |
614 | the size of .rela.got, et al, which will cause it to get | |
615 | stripped from the output file below. */ | |
616 | static char *rela_sections[] = { ".rela.got", ".rela.sdata", | |
617 | ".rela.sdata2", ".rela.sbss", | |
47b0e7ad | 618 | NULL }; |
5b93d8bb AM |
619 | char **p; |
620 | ||
47b0e7ad | 621 | for (p = rela_sections; *p != NULL; p++) |
5b93d8bb AM |
622 | { |
623 | s = bfd_get_section_by_name (dynobj, *p); | |
624 | if (s != NULL) | |
eea6121a | 625 | s->size = 0; |
5b93d8bb AM |
626 | } |
627 | } | |
628 | ||
629 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
630 | determined the sizes of the various dynamic sections. Allocate | |
631 | memory for them. */ | |
b34976b6 AM |
632 | plt = FALSE; |
633 | relocs = FALSE; | |
634 | reltext = FALSE; | |
5b93d8bb AM |
635 | for (s = dynobj->sections; s != NULL; s = s->next) |
636 | { | |
637 | const char *name; | |
5b93d8bb AM |
638 | |
639 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
640 | continue; | |
641 | ||
642 | /* It's OK to base decisions on the section name, because none | |
643 | of the dynobj section names depend upon the input files. */ | |
644 | name = bfd_get_section_name (dynobj, s); | |
5b93d8bb AM |
645 | |
646 | if (strcmp (name, ".plt") == 0) | |
647 | { | |
c456f082 AM |
648 | /* Remember whether there is a PLT. */ |
649 | plt = s->size != 0; | |
5b93d8bb AM |
650 | } |
651 | else if (strncmp (name, ".rela", 5) == 0) | |
652 | { | |
c456f082 | 653 | if (s->size != 0) |
5b93d8bb AM |
654 | { |
655 | asection *target; | |
656 | const char *outname; | |
657 | ||
6609fa74 | 658 | /* Remember whether there are any relocation sections. */ |
b34976b6 | 659 | relocs = TRUE; |
5b93d8bb AM |
660 | |
661 | /* If this relocation section applies to a read only | |
662 | section, then we probably need a DT_TEXTREL entry. */ | |
663 | outname = bfd_get_section_name (output_bfd, | |
664 | s->output_section); | |
665 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
666 | if (target != NULL | |
667 | && (target->flags & SEC_READONLY) != 0 | |
668 | && (target->flags & SEC_ALLOC) != 0) | |
b34976b6 | 669 | reltext = TRUE; |
5b93d8bb AM |
670 | |
671 | /* We use the reloc_count field as a counter if we need | |
672 | to copy relocs into the output file. */ | |
673 | s->reloc_count = 0; | |
674 | } | |
675 | } | |
676 | else if (strcmp (name, ".got") != 0 | |
677 | && strcmp (name, ".sdata") != 0 | |
c456f082 AM |
678 | && strcmp (name, ".sdata2") != 0 |
679 | && strcmp (name, ".dynbss") != 0 | |
680 | && strcmp (name, ".dynsbss") != 0) | |
681 | { | |
682 | /* It's not one of our sections, so don't allocate space. */ | |
683 | continue; | |
684 | } | |
5b93d8bb | 685 | |
c456f082 | 686 | if (s->size == 0) |
5b93d8bb | 687 | { |
c456f082 AM |
688 | /* If we don't need this section, strip it from the |
689 | output file. This is mostly to handle .rela.bss and | |
690 | .rela.plt. We must create both sections in | |
691 | create_dynamic_sections, because they must be created | |
692 | before the linker maps input sections to output | |
693 | sections. The linker does that before | |
694 | adjust_dynamic_symbol is called, and it is that | |
695 | function which decides whether anything needs to go | |
696 | into these sections. */ | |
697 | s->flags |= SEC_EXCLUDE; | |
5b93d8bb AM |
698 | continue; |
699 | } | |
c456f082 AM |
700 | |
701 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
702 | continue; | |
703 | ||
5b93d8bb | 704 | /* Allocate memory for the section contents. */ |
47b0e7ad | 705 | s->contents = bfd_zalloc (dynobj, s->size); |
c456f082 | 706 | if (s->contents == NULL) |
b34976b6 | 707 | return FALSE; |
5b93d8bb AM |
708 | } |
709 | ||
710 | if (elf_hash_table (info)->dynamic_sections_created) | |
711 | { | |
712 | /* Add some entries to the .dynamic section. We fill in the | |
713 | values later, in i370_elf_finish_dynamic_sections, but we | |
714 | must add the entries now so that we get the correct size for | |
715 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
716 | dynamic linker and used by the debugger. */ | |
dc810e39 | 717 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 718 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 AM |
719 | |
720 | if (!info->shared) | |
5b93d8bb | 721 | { |
dc810e39 | 722 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 723 | return FALSE; |
5b93d8bb AM |
724 | } |
725 | ||
726 | if (plt) | |
727 | { | |
dc810e39 AM |
728 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
729 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
730 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
731 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 732 | return FALSE; |
5b93d8bb AM |
733 | } |
734 | ||
735 | if (relocs) | |
736 | { | |
dc810e39 AM |
737 | if (!add_dynamic_entry (DT_RELA, 0) |
738 | || !add_dynamic_entry (DT_RELASZ, 0) | |
739 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 740 | return FALSE; |
5b93d8bb AM |
741 | } |
742 | ||
743 | if (reltext) | |
744 | { | |
dc810e39 | 745 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 746 | return FALSE; |
d6cf2879 | 747 | info->flags |= DF_TEXTREL; |
5b93d8bb AM |
748 | } |
749 | } | |
dc810e39 | 750 | #undef add_dynamic_entry |
5b93d8bb AM |
751 | |
752 | /* If we are generating a shared library, we generate a section | |
753 | symbol for each output section. These are local symbols, which | |
754 | means that they must come first in the dynamic symbol table. | |
755 | That means we must increment the dynamic symbol index of every | |
756 | other dynamic symbol. | |
757 | ||
758 | FIXME: We assume that there will never be relocations to | |
759 | locations in linker-created sections that do not have | |
760 | externally-visible names. Instead, we should work out precisely | |
4cc11e76 | 761 | which sections relocations are targeted at. */ |
5b93d8bb AM |
762 | if (info->shared) |
763 | { | |
764 | int c; | |
765 | ||
766 | for (c = 0, s = output_bfd->sections; s != NULL; s = s->next) | |
767 | { | |
768 | if ((s->flags & SEC_LINKER_CREATED) != 0 | |
769 | || (s->flags & SEC_ALLOC) == 0) | |
770 | { | |
771 | elf_section_data (s)->dynindx = -1; | |
772 | continue; | |
773 | } | |
774 | ||
775 | /* These symbols will have no names, so we don't need to | |
776 | fiddle with dynstr_index. */ | |
777 | ||
778 | elf_section_data (s)->dynindx = c + 1; | |
779 | ||
780 | c++; | |
781 | } | |
782 | ||
783 | elf_link_hash_traverse (elf_hash_table (info), | |
47b0e7ad | 784 | i370_elf_adjust_dynindx, & c); |
5b93d8bb AM |
785 | elf_hash_table (info)->dynsymcount += c; |
786 | } | |
787 | ||
b34976b6 | 788 | return TRUE; |
5b93d8bb | 789 | } |
5b93d8bb AM |
790 | \f |
791 | /* Look through the relocs for a section during the first phase, and | |
792 | allocate space in the global offset table or procedure linkage | |
793 | table. */ | |
794 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
795 | certainly does the wrong thing. Its here simply because it does |
796 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 797 | |
b34976b6 | 798 | static bfd_boolean |
47b0e7ad NC |
799 | i370_elf_check_relocs (bfd *abfd, |
800 | struct bfd_link_info *info, | |
801 | asection *sec, | |
802 | const Elf_Internal_Rela *relocs) | |
5b93d8bb AM |
803 | { |
804 | bfd *dynobj; | |
805 | Elf_Internal_Shdr *symtab_hdr; | |
806 | struct elf_link_hash_entry **sym_hashes; | |
807 | const Elf_Internal_Rela *rel; | |
808 | const Elf_Internal_Rela *rel_end; | |
809 | bfd_vma *local_got_offsets; | |
5b93d8bb | 810 | asection *sreloc; |
5b93d8bb | 811 | |
1049f94e | 812 | if (info->relocatable) |
b34976b6 | 813 | return TRUE; |
5b93d8bb AM |
814 | |
815 | #ifdef DEBUG | |
d003868e AM |
816 | _bfd_error_handler ("i370_elf_check_relocs called for section %A in %B", |
817 | sec, abfd); | |
5b93d8bb AM |
818 | #endif |
819 | ||
820 | dynobj = elf_hash_table (info)->dynobj; | |
821 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
822 | sym_hashes = elf_sym_hashes (abfd); | |
823 | local_got_offsets = elf_local_got_offsets (abfd); | |
824 | ||
825 | sreloc = NULL; | |
826 | ||
827 | rel_end = relocs + sec->reloc_count; | |
828 | for (rel = relocs; rel < rel_end; rel++) | |
829 | { | |
830 | unsigned long r_symndx; | |
831 | struct elf_link_hash_entry *h; | |
832 | ||
833 | r_symndx = ELF32_R_SYM (rel->r_info); | |
834 | if (r_symndx < symtab_hdr->sh_info) | |
835 | h = NULL; | |
836 | else | |
973a3492 L |
837 | { |
838 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
839 | while (h->root.type == bfd_link_hash_indirect | |
840 | || h->root.type == bfd_link_hash_warning) | |
841 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
842 | } | |
5b93d8bb AM |
843 | |
844 | if (info->shared) | |
845 | { | |
846 | #ifdef DEBUG | |
847 | fprintf (stderr, | |
848 | "i370_elf_check_relocs needs to create relocation for %s\n", | |
849 | (h && h->root.root.string) | |
850 | ? h->root.root.string : "<unknown>"); | |
851 | #endif | |
852 | if (sreloc == NULL) | |
853 | { | |
854 | const char *name; | |
855 | ||
856 | name = (bfd_elf_string_from_elf_section | |
857 | (abfd, | |
858 | elf_elfheader (abfd)->e_shstrndx, | |
859 | elf_section_data (sec)->rel_hdr.sh_name)); | |
860 | if (name == NULL) | |
b34976b6 | 861 | return FALSE; |
5b93d8bb AM |
862 | |
863 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
864 | && strcmp (bfd_get_section_name (abfd, sec), name + 5) == 0); | |
865 | ||
866 | sreloc = bfd_get_section_by_name (dynobj, name); | |
867 | if (sreloc == NULL) | |
868 | { | |
869 | flagword flags; | |
870 | ||
5b93d8bb AM |
871 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
872 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
873 | if ((sec->flags & SEC_ALLOC) != 0) | |
874 | flags |= SEC_ALLOC | SEC_LOAD; | |
3496cb2a L |
875 | sreloc = bfd_make_section_with_flags (dynobj, name, |
876 | flags); | |
5b93d8bb | 877 | if (sreloc == NULL |
5b93d8bb | 878 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
b34976b6 | 879 | return FALSE; |
5b93d8bb AM |
880 | } |
881 | } | |
882 | ||
eea6121a | 883 | sreloc->size += sizeof (Elf32_External_Rela); |
5b93d8bb AM |
884 | |
885 | /* FIXME: We should here do what the m68k and i386 | |
886 | backends do: if the reloc is pc-relative, record it | |
887 | in case it turns out that the reloc is unnecessary | |
888 | because the symbol is forced local by versioning or | |
889 | we are linking with -Bdynamic. Fortunately this | |
890 | case is not frequent. */ | |
891 | } | |
892 | } | |
893 | ||
b34976b6 | 894 | return TRUE; |
5b93d8bb | 895 | } |
5b93d8bb AM |
896 | \f |
897 | /* Finish up the dynamic sections. */ | |
898 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
899 | certainly does the wrong thing. Its here simply because it does |
900 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 901 | |
b34976b6 | 902 | static bfd_boolean |
47b0e7ad NC |
903 | i370_elf_finish_dynamic_sections (bfd *output_bfd, |
904 | struct bfd_link_info *info) | |
5b93d8bb AM |
905 | { |
906 | asection *sdyn; | |
907 | bfd *dynobj = elf_hash_table (info)->dynobj; | |
908 | asection *sgot = bfd_get_section_by_name (dynobj, ".got"); | |
909 | ||
910 | #ifdef DEBUG | |
911 | fprintf (stderr, "i370_elf_finish_dynamic_sections called\n"); | |
912 | #endif | |
913 | ||
914 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
915 | ||
916 | if (elf_hash_table (info)->dynamic_sections_created) | |
917 | { | |
918 | asection *splt; | |
919 | Elf32_External_Dyn *dyncon, *dynconend; | |
920 | ||
921 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
922 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
923 | ||
924 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 925 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
5b93d8bb AM |
926 | for (; dyncon < dynconend; dyncon++) |
927 | { | |
928 | Elf_Internal_Dyn dyn; | |
929 | const char *name; | |
b34976b6 | 930 | bfd_boolean size; |
5b93d8bb AM |
931 | |
932 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
933 | ||
934 | switch (dyn.d_tag) | |
935 | { | |
b34976b6 AM |
936 | case DT_PLTGOT: name = ".plt"; size = FALSE; break; |
937 | case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; | |
938 | case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; | |
939 | default: name = NULL; size = FALSE; break; | |
5b93d8bb AM |
940 | } |
941 | ||
942 | if (name != NULL) | |
943 | { | |
944 | asection *s; | |
945 | ||
946 | s = bfd_get_section_by_name (output_bfd, name); | |
947 | if (s == NULL) | |
948 | dyn.d_un.d_val = 0; | |
949 | else | |
950 | { | |
951 | if (! size) | |
952 | dyn.d_un.d_ptr = s->vma; | |
953 | else | |
eea6121a | 954 | dyn.d_un.d_val = s->size; |
5b93d8bb AM |
955 | } |
956 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
957 | } | |
958 | } | |
959 | } | |
960 | ||
c456f082 | 961 | if (sgot && sgot->size != 0) |
5b93d8bb AM |
962 | { |
963 | unsigned char *contents = sgot->contents; | |
5b93d8bb AM |
964 | |
965 | if (sdyn == NULL) | |
3b36f7e6 | 966 | bfd_put_32 (output_bfd, (bfd_vma) 0, contents); |
5b93d8bb AM |
967 | else |
968 | bfd_put_32 (output_bfd, | |
969 | sdyn->output_section->vma + sdyn->output_offset, | |
3b36f7e6 | 970 | contents); |
5b93d8bb AM |
971 | |
972 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
973 | } | |
974 | ||
975 | if (info->shared) | |
976 | { | |
977 | asection *sdynsym; | |
978 | asection *s; | |
979 | Elf_Internal_Sym sym; | |
980 | int maxdindx = 0; | |
981 | ||
982 | /* Set up the section symbols for the output sections. */ | |
983 | ||
984 | sdynsym = bfd_get_section_by_name (dynobj, ".dynsym"); | |
985 | BFD_ASSERT (sdynsym != NULL); | |
986 | ||
987 | sym.st_size = 0; | |
988 | sym.st_name = 0; | |
989 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
990 | sym.st_other = 0; | |
991 | ||
992 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
993 | { | |
994 | int indx, dindx; | |
9ad5cbcf | 995 | Elf32_External_Sym *esym; |
5b93d8bb AM |
996 | |
997 | sym.st_value = s->vma; | |
998 | ||
999 | indx = elf_section_data (s)->this_idx; | |
1000 | dindx = elf_section_data (s)->dynindx; | |
1001 | if (dindx != -1) | |
1002 | { | |
1003 | BFD_ASSERT(indx > 0); | |
1004 | BFD_ASSERT(dindx > 0); | |
1005 | ||
1006 | if (dindx > maxdindx) | |
1007 | maxdindx = dindx; | |
1008 | ||
1009 | sym.st_shndx = indx; | |
1010 | ||
9ad5cbcf | 1011 | esym = (Elf32_External_Sym *) sdynsym->contents + dindx; |
47b0e7ad | 1012 | bfd_elf32_swap_symbol_out (output_bfd, &sym, esym, NULL); |
5b93d8bb AM |
1013 | } |
1014 | } | |
1015 | ||
1016 | /* Set the sh_info field of the output .dynsym section to the | |
3b36f7e6 | 1017 | index of the first global symbol. */ |
5b93d8bb AM |
1018 | elf_section_data (sdynsym->output_section)->this_hdr.sh_info = |
1019 | maxdindx + 1; | |
1020 | } | |
1021 | ||
b34976b6 | 1022 | return TRUE; |
5b93d8bb | 1023 | } |
5b93d8bb AM |
1024 | \f |
1025 | /* The RELOCATE_SECTION function is called by the ELF backend linker | |
1026 | to handle the relocations for a section. | |
1027 | ||
1028 | The relocs are always passed as Rela structures; if the section | |
1029 | actually uses Rel structures, the r_addend field will always be | |
1030 | zero. | |
1031 | ||
1032 | This function is responsible for adjust the section contents as | |
1033 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 1034 | relocatable output file) adjusting the reloc addend as |
5b93d8bb AM |
1035 | necessary. |
1036 | ||
1037 | This function does not have to worry about setting the reloc | |
1038 | address or the reloc symbol index. | |
1039 | ||
1040 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
1041 | ||
1042 | LOCAL_SECTIONS is an array giving the section in the input file | |
1043 | corresponding to the st_shndx field of each local symbol. | |
1044 | ||
1045 | The global hash table entry for the global symbols can be found | |
1046 | via elf_sym_hashes (input_bfd). | |
1047 | ||
1049f94e | 1048 | When generating relocatable output, this function must handle |
5b93d8bb AM |
1049 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
1050 | going to be the section symbol corresponding to the output | |
1051 | section, which means that the addend must be adjusted | |
1052 | accordingly. */ | |
1053 | ||
b34976b6 | 1054 | static bfd_boolean |
47b0e7ad NC |
1055 | i370_elf_relocate_section (bfd *output_bfd, |
1056 | struct bfd_link_info *info, | |
1057 | bfd *input_bfd, | |
1058 | asection *input_section, | |
1059 | bfd_byte *contents, | |
1060 | Elf_Internal_Rela *relocs, | |
1061 | Elf_Internal_Sym *local_syms, | |
1062 | asection **local_sections) | |
5b93d8bb | 1063 | { |
b34976b6 | 1064 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
5b93d8bb | 1065 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
b34976b6 AM |
1066 | bfd *dynobj = elf_hash_table (info)->dynobj; |
1067 | Elf_Internal_Rela *rel = relocs; | |
1068 | Elf_Internal_Rela *relend = relocs + input_section->reloc_count; | |
1069 | asection *sreloc = NULL; | |
5b93d8bb | 1070 | bfd_vma *local_got_offsets; |
b34976b6 | 1071 | bfd_boolean ret = TRUE; |
5b93d8bb | 1072 | |
1049f94e | 1073 | if (info->relocatable) |
b34976b6 | 1074 | return TRUE; |
b491616a | 1075 | |
5b93d8bb | 1076 | #ifdef DEBUG |
d003868e AM |
1077 | _bfd_error_handler ("i370_elf_relocate_section called for %B section %A, %ld relocations%s", |
1078 | input_bfd, input_section, | |
1079 | (long) input_section->reloc_count, | |
1080 | (info->relocatable) ? " (relocatable)" : ""); | |
5b93d8bb AM |
1081 | #endif |
1082 | ||
47b0e7ad NC |
1083 | if (!i370_elf_howto_table[ R_I370_ADDR31 ]) |
1084 | /* Initialize howto table if needed. */ | |
5b93d8bb AM |
1085 | i370_elf_howto_init (); |
1086 | ||
1087 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
1088 | ||
1089 | for (; rel < relend; rel++) | |
1090 | { | |
47b0e7ad NC |
1091 | enum i370_reloc_type r_type = (enum i370_reloc_type) ELF32_R_TYPE (rel->r_info); |
1092 | bfd_vma offset = rel->r_offset; | |
1093 | bfd_vma addend = rel->r_addend; | |
1094 | bfd_reloc_status_type r = bfd_reloc_other; | |
1095 | Elf_Internal_Sym *sym = NULL; | |
1096 | asection *sec = NULL; | |
1097 | struct elf_link_hash_entry * h = NULL; | |
1098 | const char *sym_name = NULL; | |
5b93d8bb AM |
1099 | reloc_howto_type *howto; |
1100 | unsigned long r_symndx; | |
1101 | bfd_vma relocation; | |
1102 | ||
47b0e7ad NC |
1103 | /* Unknown relocation handling. */ |
1104 | if ((unsigned) r_type >= (unsigned) R_I370_max | |
5b93d8bb AM |
1105 | || !i370_elf_howto_table[(int)r_type]) |
1106 | { | |
d003868e AM |
1107 | (*_bfd_error_handler) ("%B: unknown relocation type %d", |
1108 | input_bfd, | |
8f615d07 | 1109 | (int) r_type); |
5b93d8bb AM |
1110 | |
1111 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1112 | ret = FALSE; |
5b93d8bb AM |
1113 | continue; |
1114 | } | |
1115 | ||
47b0e7ad | 1116 | howto = i370_elf_howto_table[(int) r_type]; |
5b93d8bb AM |
1117 | r_symndx = ELF32_R_SYM (rel->r_info); |
1118 | ||
5b93d8bb AM |
1119 | if (r_symndx < symtab_hdr->sh_info) |
1120 | { | |
1121 | sym = local_syms + r_symndx; | |
1122 | sec = local_sections[r_symndx]; | |
1123 | sym_name = "<local symbol>"; | |
1124 | ||
47b0e7ad | 1125 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, & sec, rel); |
f8df10f4 | 1126 | addend = rel->r_addend; |
5b93d8bb AM |
1127 | } |
1128 | else | |
1129 | { | |
1130 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1131 | while (h->root.type == bfd_link_hash_indirect | |
1132 | || h->root.type == bfd_link_hash_warning) | |
1133 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1134 | sym_name = h->root.root.string; | |
1135 | if (h->root.type == bfd_link_hash_defined | |
1136 | || h->root.type == bfd_link_hash_defweak) | |
1137 | { | |
1138 | sec = h->root.u.def.section; | |
1139 | if (info->shared | |
1140 | && ((! info->symbolic && h->dynindx != -1) | |
f5385ebf | 1141 | || !h->def_regular) |
5b93d8bb AM |
1142 | && (input_section->flags & SEC_ALLOC) != 0 |
1143 | && (r_type == R_I370_ADDR31 | |
1144 | || r_type == R_I370_COPY | |
1145 | || r_type == R_I370_ADDR16 | |
1146 | || r_type == R_I370_RELATIVE)) | |
47b0e7ad NC |
1147 | /* In these cases, we don't need the relocation |
1148 | value. We check specially because in some | |
1149 | obscure cases sec->output_section will be NULL. */ | |
1150 | relocation = 0; | |
5b93d8bb AM |
1151 | else |
1152 | relocation = (h->root.u.def.value | |
1153 | + sec->output_section->vma | |
1154 | + sec->output_offset); | |
1155 | } | |
1156 | else if (h->root.type == bfd_link_hash_undefweak) | |
1157 | relocation = 0; | |
59c2e50f | 1158 | else if (info->unresolved_syms_in_objects == RM_IGNORE |
3a27a730 | 1159 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
5b93d8bb AM |
1160 | relocation = 0; |
1161 | else | |
1162 | { | |
59c2e50f L |
1163 | if ((*info->callbacks->undefined_symbol) |
1164 | (info, h->root.root.string, input_bfd, | |
1165 | input_section, rel->r_offset, | |
1166 | (info->unresolved_syms_in_objects == RM_GENERATE_ERROR | |
1167 | || ELF_ST_VISIBILITY (h->other)))) | |
1168 | { | |
1169 | ret = FALSE; | |
1170 | continue; | |
1171 | } | |
1172 | relocation = 0; | |
5b93d8bb AM |
1173 | } |
1174 | } | |
1175 | ||
8f615d07 | 1176 | switch ((int) r_type) |
5b93d8bb AM |
1177 | { |
1178 | default: | |
8f615d07 | 1179 | (*_bfd_error_handler) |
d003868e AM |
1180 | ("%B: unknown relocation type %d for symbol %s", |
1181 | input_bfd, (int) r_type, sym_name); | |
5b93d8bb AM |
1182 | |
1183 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1184 | ret = FALSE; |
5b93d8bb AM |
1185 | continue; |
1186 | ||
47b0e7ad | 1187 | case (int) R_I370_NONE: |
7595d193 L |
1188 | continue; |
1189 | ||
5b93d8bb | 1190 | /* Relocations that may need to be propagated if this is a shared |
3b36f7e6 | 1191 | object. */ |
47b0e7ad | 1192 | case (int) R_I370_REL31: |
5b93d8bb AM |
1193 | /* If these relocations are not to a named symbol, they can be |
1194 | handled right here, no need to bother the dynamic linker. */ | |
1195 | if (h == NULL | |
1196 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1197 | break; | |
47b0e7ad | 1198 | /* Fall through. */ |
5b93d8bb AM |
1199 | |
1200 | /* Relocations that always need to be propagated if this is a shared | |
3b36f7e6 | 1201 | object. */ |
47b0e7ad NC |
1202 | case (int) R_I370_ADDR31: |
1203 | case (int) R_I370_ADDR16: | |
ec338859 AM |
1204 | if (info->shared |
1205 | && r_symndx != 0) | |
5b93d8bb AM |
1206 | { |
1207 | Elf_Internal_Rela outrel; | |
947216bf | 1208 | bfd_byte *loc; |
0bb2d96a | 1209 | int skip; |
5b93d8bb AM |
1210 | |
1211 | #ifdef DEBUG | |
1212 | fprintf (stderr, | |
1213 | "i370_elf_relocate_section needs to create relocation for %s\n", | |
1214 | (h && h->root.root.string) ? h->root.root.string : "<unknown>"); | |
1215 | #endif | |
1216 | ||
1217 | /* When generating a shared object, these relocations | |
3b36f7e6 AM |
1218 | are copied into the output file to be resolved at run |
1219 | time. */ | |
5b93d8bb AM |
1220 | |
1221 | if (sreloc == NULL) | |
1222 | { | |
1223 | const char *name; | |
1224 | ||
1225 | name = (bfd_elf_string_from_elf_section | |
1226 | (input_bfd, | |
1227 | elf_elfheader (input_bfd)->e_shstrndx, | |
1228 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
1229 | if (name == NULL) | |
b34976b6 | 1230 | return FALSE; |
5b93d8bb AM |
1231 | |
1232 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1233 | && strcmp (bfd_get_section_name (input_bfd, | |
1234 | input_section), | |
1235 | name + 5) == 0); | |
1236 | ||
1237 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1238 | BFD_ASSERT (sreloc != NULL); | |
1239 | } | |
1240 | ||
0bb2d96a | 1241 | skip = 0; |
5b93d8bb | 1242 | |
c629eae0 JJ |
1243 | outrel.r_offset = |
1244 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1245 | rel->r_offset); | |
0bb2d96a JJ |
1246 | if (outrel.r_offset == (bfd_vma) -1 |
1247 | || outrel.r_offset == (bfd_vma) -2) | |
1248 | skip = (int) outrel.r_offset; | |
5b93d8bb AM |
1249 | outrel.r_offset += (input_section->output_section->vma |
1250 | + input_section->output_offset); | |
1251 | ||
1252 | if (skip) | |
1253 | memset (&outrel, 0, sizeof outrel); | |
1254 | /* h->dynindx may be -1 if this symbol was marked to | |
3b36f7e6 | 1255 | become local. */ |
5b93d8bb AM |
1256 | else if (h != NULL |
1257 | && ((! info->symbolic && h->dynindx != -1) | |
f5385ebf | 1258 | || !h->def_regular)) |
5b93d8bb AM |
1259 | { |
1260 | BFD_ASSERT (h->dynindx != -1); | |
1261 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1262 | outrel.r_addend = rel->r_addend; | |
1263 | } | |
1264 | else | |
1265 | { | |
1266 | if (r_type == R_I370_ADDR31) | |
1267 | { | |
1268 | outrel.r_info = ELF32_R_INFO (0, R_I370_RELATIVE); | |
1269 | outrel.r_addend = relocation + rel->r_addend; | |
1270 | } | |
1271 | else | |
1272 | { | |
1273 | long indx; | |
1274 | ||
8517fae7 | 1275 | if (bfd_is_abs_section (sec)) |
5b93d8bb AM |
1276 | indx = 0; |
1277 | else if (sec == NULL || sec->owner == NULL) | |
1278 | { | |
1279 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1280 | return FALSE; |
5b93d8bb AM |
1281 | } |
1282 | else | |
1283 | { | |
1284 | asection *osec; | |
1285 | ||
1286 | osec = sec->output_section; | |
1287 | indx = elf_section_data (osec)->dynindx; | |
1288 | BFD_ASSERT(indx > 0); | |
1289 | #ifdef DEBUG | |
1290 | if (indx <= 0) | |
1291 | { | |
6609fa74 KH |
1292 | printf ("indx=%d section=%s flags=%08x name=%s\n", |
1293 | indx, osec->name, osec->flags, | |
1294 | h->root.root.string); | |
5b93d8bb AM |
1295 | } |
1296 | #endif | |
1297 | } | |
1298 | ||
1299 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
1300 | outrel.r_addend = relocation + rel->r_addend; | |
1301 | } | |
1302 | } | |
1303 | ||
947216bf AM |
1304 | loc = sreloc->contents; |
1305 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1306 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5b93d8bb AM |
1307 | |
1308 | /* This reloc will be computed at runtime, so there's no | |
3b36f7e6 AM |
1309 | need to do anything now, unless this is a RELATIVE |
1310 | reloc in an unallocated section. */ | |
0bb2d96a | 1311 | if (skip == -1 |
5b93d8bb AM |
1312 | || (input_section->flags & SEC_ALLOC) != 0 |
1313 | || ELF32_R_TYPE (outrel.r_info) != R_I370_RELATIVE) | |
1314 | continue; | |
1315 | } | |
1316 | break; | |
1317 | ||
47b0e7ad NC |
1318 | case (int) R_I370_COPY: |
1319 | case (int) R_I370_RELATIVE: | |
8f615d07 | 1320 | (*_bfd_error_handler) |
d003868e AM |
1321 | ("%B: Relocation %s is not yet supported for symbol %s.", |
1322 | input_bfd, | |
8f615d07 AM |
1323 | i370_elf_howto_table[(int) r_type]->name, |
1324 | sym_name); | |
5b93d8bb AM |
1325 | |
1326 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1327 | ret = FALSE; |
5b93d8bb AM |
1328 | continue; |
1329 | } | |
1330 | ||
5b93d8bb AM |
1331 | #ifdef DEBUG |
1332 | fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, offset = %ld, addend = %ld\n", | |
1333 | howto->name, | |
1334 | (int)r_type, | |
1335 | sym_name, | |
1336 | r_symndx, | |
47b0e7ad NC |
1337 | (long) offset, |
1338 | (long) addend); | |
5b93d8bb AM |
1339 | #endif |
1340 | ||
47b0e7ad NC |
1341 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, |
1342 | offset, relocation, addend); | |
5b93d8bb AM |
1343 | |
1344 | if (r != bfd_reloc_ok) | |
1345 | { | |
b34976b6 | 1346 | ret = FALSE; |
5b93d8bb AM |
1347 | switch (r) |
1348 | { | |
1349 | default: | |
1350 | break; | |
1351 | ||
1352 | case bfd_reloc_overflow: | |
1353 | { | |
1354 | const char *name; | |
1355 | ||
1356 | if (h != NULL) | |
dfeffb9f | 1357 | name = NULL; |
5b93d8bb AM |
1358 | else |
1359 | { | |
1360 | name = bfd_elf_string_from_elf_section (input_bfd, | |
1361 | symtab_hdr->sh_link, | |
1362 | sym->st_name); | |
1363 | if (name == NULL) | |
1364 | break; | |
1365 | ||
1366 | if (*name == '\0') | |
1367 | name = bfd_section_name (input_bfd, sec); | |
1368 | } | |
1369 | ||
6609fa74 | 1370 | (*info->callbacks->reloc_overflow) (info, |
dfeffb9f | 1371 | (h ? &h->root : NULL), |
6609fa74 KH |
1372 | name, |
1373 | howto->name, | |
1374 | (bfd_vma) 0, | |
1375 | input_bfd, | |
1376 | input_section, | |
1377 | offset); | |
5b93d8bb AM |
1378 | } |
1379 | break; | |
5b93d8bb AM |
1380 | } |
1381 | } | |
1382 | } | |
1383 | ||
5b93d8bb AM |
1384 | #ifdef DEBUG |
1385 | fprintf (stderr, "\n"); | |
1386 | #endif | |
1387 | ||
1388 | return ret; | |
1389 | } | |
1390 | ||
1391 | static void | |
47b0e7ad NC |
1392 | i370_elf_post_process_headers (bfd * abfd, |
1393 | struct bfd_link_info * link_info ATTRIBUTE_UNUSED) | |
5b93d8bb | 1394 | { |
47b0e7ad | 1395 | Elf_Internal_Ehdr * i_ehdrp; /* Elf file header, internal form. */ |
5b93d8bb AM |
1396 | |
1397 | i_ehdrp = elf_elfheader (abfd); | |
1398 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
1399 | } | |
1400 | \f | |
1401 | #define TARGET_BIG_SYM bfd_elf32_i370_vec | |
1402 | #define TARGET_BIG_NAME "elf32-i370" | |
1403 | #define ELF_ARCH bfd_arch_i370 | |
1404 | #define ELF_MACHINE_CODE EM_S370 | |
1405 | #ifdef EM_I370_OLD | |
1406 | #define ELF_MACHINE_ALT1 EM_I370_OLD | |
1407 | #endif | |
1408 | #define ELF_MAXPAGESIZE 0x1000 | |
1409 | #define elf_info_to_howto i370_elf_info_to_howto | |
1410 | ||
5b93d8bb | 1411 | #define elf_backend_plt_not_loaded 1 |
47b0e7ad | 1412 | #define elf_backend_rela_normal 1 |
5b93d8bb AM |
1413 | |
1414 | #define bfd_elf32_bfd_reloc_type_lookup i370_elf_reloc_type_lookup | |
1415 | #define bfd_elf32_bfd_set_private_flags i370_elf_set_private_flags | |
5b93d8bb AM |
1416 | #define bfd_elf32_bfd_merge_private_bfd_data i370_elf_merge_private_bfd_data |
1417 | #define elf_backend_relocate_section i370_elf_relocate_section | |
1418 | ||
47b0e7ad NC |
1419 | /* Dynamic loader support is mostly broken; just enough here to be able to |
1420 | link glibc's ld.so without errors. */ | |
5b93d8bb AM |
1421 | #define elf_backend_create_dynamic_sections i370_elf_create_dynamic_sections |
1422 | #define elf_backend_size_dynamic_sections i370_elf_size_dynamic_sections | |
1423 | #define elf_backend_finish_dynamic_sections i370_elf_finish_dynamic_sections | |
1424 | #define elf_backend_fake_sections i370_elf_fake_sections | |
1425 | #define elf_backend_section_from_shdr i370_elf_section_from_shdr | |
1426 | #define elf_backend_adjust_dynamic_symbol i370_elf_adjust_dynamic_symbol | |
1427 | #define elf_backend_check_relocs i370_elf_check_relocs | |
5b93d8bb AM |
1428 | #define elf_backend_post_process_headers i370_elf_post_process_headers |
1429 | ||
47b0e7ad NC |
1430 | static int |
1431 | i370_noop (void) | |
5b93d8bb AM |
1432 | { |
1433 | return 1; | |
1434 | } | |
1435 | ||
47b0e7ad | 1436 | /* We need to define these at least as no-ops to link glibc ld.so. */ |
5b93d8bb AM |
1437 | |
1438 | #define elf_backend_add_symbol_hook \ | |
b34976b6 | 1439 | (bfd_boolean (*) \ |
47b0e7ad NC |
1440 | (bfd *, struct bfd_link_info *, Elf_Internal_Sym *, \ |
1441 | const char **, flagword *, asection **, bfd_vma *)) i370_noop | |
5b93d8bb | 1442 | #define elf_backend_finish_dynamic_symbol \ |
b34976b6 | 1443 | (bfd_boolean (*) \ |
47b0e7ad NC |
1444 | (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, \ |
1445 | Elf_Internal_Sym *)) i370_noop | |
5b93d8bb | 1446 | #define elf_backend_additional_program_headers \ |
47b0e7ad | 1447 | (int (*) (bfd *)) i370_noop |
5b93d8bb | 1448 | #define elf_backend_modify_segment_map \ |
47b0e7ad | 1449 | (bfd_boolean (*) (bfd *, struct bfd_link_info *)) i370_noop |
5b93d8bb AM |
1450 | |
1451 | #include "elf32-target.h" |