Commit | Line | Data |
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5b93d8bb | 1 | /* i370-specific support for 32-bit ELF |
2571583a | 2 | Copyright (C) 1994-2017 Free Software Foundation, Inc. |
5b93d8bb AM |
3 | Written by Ian Lance Taylor, Cygnus Support. |
4 | Hacked by Linas Vepstas for i370 linas@linas.org | |
5 | ||
47b0e7ad | 6 | This file is part of BFD, the Binary File Descriptor library. |
5b93d8bb | 7 | |
47b0e7ad NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
47b0e7ad | 11 | (at your option) any later version. |
5b93d8bb | 12 | |
47b0e7ad NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
5b93d8bb | 17 | |
47b0e7ad NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | MA 02110-1301, USA. */ | |
5b93d8bb | 22 | |
5b93d8bb AM |
23 | /* This file is based on a preliminary PowerPC ELF ABI. |
24 | But its been hacked on for the IBM 360/370 architectures. | |
25 | Basically, the 31bit relocation works, and just about everything | |
26 | else is a wild card. In particular, don't expect shared libs or | |
47b0e7ad | 27 | dynamic loading to work ... its never been tested. */ |
5b93d8bb | 28 | |
5b93d8bb | 29 | #include "sysdep.h" |
3db64b00 | 30 | #include "bfd.h" |
5b93d8bb AM |
31 | #include "bfdlink.h" |
32 | #include "libbfd.h" | |
33 | #include "elf-bfd.h" | |
34 | #include "elf/i370.h" | |
35 | ||
5b93d8bb AM |
36 | static reloc_howto_type *i370_elf_howto_table[ (int)R_I370_max ]; |
37 | ||
38 | static reloc_howto_type i370_elf_howto_raw[] = | |
39 | { | |
40 | /* This reloc does nothing. */ | |
41 | HOWTO (R_I370_NONE, /* type */ | |
42 | 0, /* rightshift */ | |
6346d5ca AM |
43 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
44 | 0, /* bitsize */ | |
b34976b6 | 45 | FALSE, /* pc_relative */ |
5b93d8bb | 46 | 0, /* bitpos */ |
6346d5ca | 47 | complain_overflow_dont, /* complain_on_overflow */ |
5b93d8bb AM |
48 | bfd_elf_generic_reloc, /* special_function */ |
49 | "R_I370_NONE", /* name */ | |
b34976b6 | 50 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
51 | 0, /* src_mask */ |
52 | 0, /* dst_mask */ | |
b34976b6 | 53 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
54 | |
55 | /* A standard 31 bit relocation. */ | |
56 | HOWTO (R_I370_ADDR31, /* type */ | |
57 | 0, /* rightshift */ | |
58 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
59 | 31, /* bitsize */ | |
b34976b6 | 60 | FALSE, /* pc_relative */ |
5b93d8bb AM |
61 | 0, /* bitpos */ |
62 | complain_overflow_bitfield, /* complain_on_overflow */ | |
63 | bfd_elf_generic_reloc, /* special_function */ | |
64 | "R_I370_ADDR31", /* name */ | |
b34976b6 | 65 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
66 | 0, /* src_mask */ |
67 | 0x7fffffff, /* dst_mask */ | |
b34976b6 | 68 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
69 | |
70 | /* A standard 32 bit relocation. */ | |
71 | HOWTO (R_I370_ADDR32, /* type */ | |
72 | 0, /* rightshift */ | |
73 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
74 | 32, /* bitsize */ | |
b34976b6 | 75 | FALSE, /* pc_relative */ |
5b93d8bb AM |
76 | 0, /* bitpos */ |
77 | complain_overflow_bitfield, /* complain_on_overflow */ | |
78 | bfd_elf_generic_reloc, /* special_function */ | |
79 | "R_I370_ADDR32", /* name */ | |
b34976b6 | 80 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
81 | 0, /* src_mask */ |
82 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 83 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
84 | |
85 | /* A standard 16 bit relocation. */ | |
86 | HOWTO (R_I370_ADDR16, /* type */ | |
87 | 0, /* rightshift */ | |
88 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
89 | 16, /* bitsize */ | |
b34976b6 | 90 | FALSE, /* pc_relative */ |
5b93d8bb AM |
91 | 0, /* bitpos */ |
92 | complain_overflow_bitfield, /* complain_on_overflow */ | |
93 | bfd_elf_generic_reloc, /* special_function */ | |
94 | "R_I370_ADDR16", /* name */ | |
b34976b6 | 95 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
96 | 0, /* src_mask */ |
97 | 0xffff, /* dst_mask */ | |
b34976b6 | 98 | FALSE), /* pcrel_offset */ |
5b93d8bb | 99 | |
47b0e7ad | 100 | /* 31-bit PC relative. */ |
5b93d8bb AM |
101 | HOWTO (R_I370_REL31, /* type */ |
102 | 0, /* rightshift */ | |
103 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
104 | 31, /* bitsize */ | |
b34976b6 | 105 | TRUE, /* pc_relative */ |
5b93d8bb AM |
106 | 0, /* bitpos */ |
107 | complain_overflow_bitfield, /* complain_on_overflow */ | |
108 | bfd_elf_generic_reloc, /* special_function */ | |
109 | "R_I370_REL31", /* name */ | |
b34976b6 | 110 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
111 | 0, /* src_mask */ |
112 | 0x7fffffff, /* dst_mask */ | |
b34976b6 | 113 | TRUE), /* pcrel_offset */ |
5b93d8bb | 114 | |
47b0e7ad | 115 | /* 32-bit PC relative. */ |
5b93d8bb AM |
116 | HOWTO (R_I370_REL32, /* type */ |
117 | 0, /* rightshift */ | |
118 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
119 | 32, /* bitsize */ | |
b34976b6 | 120 | TRUE, /* pc_relative */ |
5b93d8bb AM |
121 | 0, /* bitpos */ |
122 | complain_overflow_bitfield, /* complain_on_overflow */ | |
123 | bfd_elf_generic_reloc, /* special_function */ | |
124 | "R_I370_REL32", /* name */ | |
b34976b6 | 125 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
126 | 0, /* src_mask */ |
127 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 128 | TRUE), /* pcrel_offset */ |
5b93d8bb AM |
129 | |
130 | /* A standard 12 bit relocation. */ | |
131 | HOWTO (R_I370_ADDR12, /* type */ | |
132 | 0, /* rightshift */ | |
133 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
134 | 12, /* bitsize */ | |
b34976b6 | 135 | FALSE, /* pc_relative */ |
5b93d8bb AM |
136 | 0, /* bitpos */ |
137 | complain_overflow_bitfield, /* complain_on_overflow */ | |
138 | bfd_elf_generic_reloc, /* special_function */ | |
139 | "R_I370_ADDR12", /* name */ | |
b34976b6 | 140 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
141 | 0, /* src_mask */ |
142 | 0xfff, /* dst_mask */ | |
b34976b6 | 143 | FALSE), /* pcrel_offset */ |
5b93d8bb | 144 | |
47b0e7ad | 145 | /* 12-bit PC relative. */ |
5b93d8bb AM |
146 | HOWTO (R_I370_REL12, /* type */ |
147 | 0, /* rightshift */ | |
148 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
149 | 12, /* bitsize */ | |
b34976b6 | 150 | TRUE, /* pc_relative */ |
5b93d8bb AM |
151 | 0, /* bitpos */ |
152 | complain_overflow_bitfield, /* complain_on_overflow */ | |
153 | bfd_elf_generic_reloc, /* special_function */ | |
154 | "R_I370_REL12", /* name */ | |
b34976b6 | 155 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
156 | 0, /* src_mask */ |
157 | 0xfff, /* dst_mask */ | |
b34976b6 | 158 | TRUE), /* pcrel_offset */ |
5b93d8bb AM |
159 | |
160 | /* A standard 8 bit relocation. */ | |
161 | HOWTO (R_I370_ADDR8, /* type */ | |
162 | 0, /* rightshift */ | |
163 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
164 | 8, /* bitsize */ | |
b34976b6 | 165 | FALSE, /* pc_relative */ |
5b93d8bb AM |
166 | 0, /* bitpos */ |
167 | complain_overflow_bitfield, /* complain_on_overflow */ | |
168 | bfd_elf_generic_reloc, /* special_function */ | |
169 | "R_I370_ADDR8", /* name */ | |
b34976b6 | 170 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
171 | 0, /* src_mask */ |
172 | 0xff, /* dst_mask */ | |
b34976b6 | 173 | FALSE), /* pcrel_offset */ |
5b93d8bb | 174 | |
47b0e7ad | 175 | /* 8-bit PC relative. */ |
5b93d8bb AM |
176 | HOWTO (R_I370_REL8, /* type */ |
177 | 0, /* rightshift */ | |
178 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
179 | 8, /* bitsize */ | |
b34976b6 | 180 | TRUE, /* pc_relative */ |
5b93d8bb AM |
181 | 0, /* bitpos */ |
182 | complain_overflow_bitfield, /* complain_on_overflow */ | |
183 | bfd_elf_generic_reloc, /* special_function */ | |
184 | "R_I370_REL8", /* name */ | |
b34976b6 | 185 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
186 | 0, /* src_mask */ |
187 | 0xff, /* dst_mask */ | |
b34976b6 | 188 | TRUE), /* pcrel_offset */ |
5b93d8bb AM |
189 | |
190 | /* This is used only by the dynamic linker. The symbol should exist | |
191 | both in the object being run and in some shared library. The | |
192 | dynamic linker copies the data addressed by the symbol from the | |
193 | shared library into the object, because the object being | |
194 | run has to have the data at some particular address. */ | |
195 | HOWTO (R_I370_COPY, /* type */ | |
196 | 0, /* rightshift */ | |
197 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
198 | 32, /* bitsize */ | |
b34976b6 | 199 | FALSE, /* pc_relative */ |
5b93d8bb AM |
200 | 0, /* bitpos */ |
201 | complain_overflow_bitfield, /* complain_on_overflow */ | |
202 | bfd_elf_generic_reloc, /* special_function */ | |
203 | "R_I370_COPY", /* name */ | |
b34976b6 | 204 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
205 | 0, /* src_mask */ |
206 | 0, /* dst_mask */ | |
b34976b6 | 207 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
208 | |
209 | /* Used only by the dynamic linker. When the object is run, this | |
210 | longword is set to the load address of the object, plus the | |
211 | addend. */ | |
212 | HOWTO (R_I370_RELATIVE, /* type */ | |
213 | 0, /* rightshift */ | |
214 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
215 | 32, /* bitsize */ | |
b34976b6 | 216 | FALSE, /* pc_relative */ |
5b93d8bb AM |
217 | 0, /* bitpos */ |
218 | complain_overflow_bitfield, /* complain_on_overflow */ | |
219 | bfd_elf_generic_reloc, /* special_function */ | |
220 | "R_I370_RELATIVE", /* name */ | |
b34976b6 | 221 | FALSE, /* partial_inplace */ |
5b93d8bb AM |
222 | 0, /* src_mask */ |
223 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 224 | FALSE), /* pcrel_offset */ |
5b93d8bb AM |
225 | |
226 | }; | |
5b93d8bb | 227 | \f |
5b93d8bb AM |
228 | /* Initialize the i370_elf_howto_table, so that linear accesses can be done. */ |
229 | ||
230 | static void | |
47b0e7ad | 231 | i370_elf_howto_init (void) |
5b93d8bb AM |
232 | { |
233 | unsigned int i, type; | |
234 | ||
235 | for (i = 0; i < sizeof (i370_elf_howto_raw) / sizeof (i370_elf_howto_raw[0]); i++) | |
236 | { | |
237 | type = i370_elf_howto_raw[i].type; | |
6609fa74 | 238 | BFD_ASSERT (type < sizeof (i370_elf_howto_table) / sizeof (i370_elf_howto_table[0])); |
5b93d8bb AM |
239 | i370_elf_howto_table[type] = &i370_elf_howto_raw[i]; |
240 | } | |
241 | } | |
47b0e7ad | 242 | |
5b93d8bb | 243 | static reloc_howto_type * |
47b0e7ad NC |
244 | i370_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
245 | bfd_reloc_code_real_type code) | |
5b93d8bb AM |
246 | { |
247 | enum i370_reloc_type i370_reloc = R_I370_NONE; | |
248 | ||
47b0e7ad NC |
249 | if (!i370_elf_howto_table[ R_I370_ADDR31 ]) |
250 | /* Initialize howto table if needed. */ | |
5b93d8bb AM |
251 | i370_elf_howto_init (); |
252 | ||
47b0e7ad | 253 | switch ((int) code) |
5b93d8bb AM |
254 | { |
255 | default: | |
47b0e7ad | 256 | return NULL; |
5b93d8bb AM |
257 | |
258 | case BFD_RELOC_NONE: i370_reloc = R_I370_NONE; break; | |
259 | case BFD_RELOC_32: i370_reloc = R_I370_ADDR31; break; | |
260 | case BFD_RELOC_16: i370_reloc = R_I370_ADDR16; break; | |
261 | case BFD_RELOC_32_PCREL: i370_reloc = R_I370_REL31; break; | |
262 | case BFD_RELOC_CTOR: i370_reloc = R_I370_ADDR31; break; | |
263 | case BFD_RELOC_I370_D12: i370_reloc = R_I370_ADDR12; break; | |
264 | } | |
265 | ||
266 | return i370_elf_howto_table[ (int)i370_reloc ]; | |
267 | }; | |
268 | ||
157090f7 AM |
269 | static reloc_howto_type * |
270 | i370_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
271 | const char *r_name) | |
272 | { | |
273 | unsigned int i; | |
274 | ||
275 | for (i = 0; | |
276 | i < sizeof (i370_elf_howto_raw) / sizeof (i370_elf_howto_raw[0]); | |
277 | i++) | |
278 | if (i370_elf_howto_raw[i].name != NULL | |
279 | && strcasecmp (i370_elf_howto_raw[i].name, r_name) == 0) | |
280 | return &i370_elf_howto_raw[i]; | |
281 | ||
282 | return NULL; | |
283 | } | |
284 | ||
5b93d8bb AM |
285 | /* The name of the dynamic interpreter. This is put in the .interp |
286 | section. */ | |
287 | ||
288 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so" | |
289 | ||
5b93d8bb AM |
290 | /* Set the howto pointer for an i370 ELF reloc. */ |
291 | ||
292 | static void | |
47b0e7ad NC |
293 | i370_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
294 | arelent *cache_ptr, | |
295 | Elf_Internal_Rela *dst) | |
5b93d8bb | 296 | { |
cd21f5da NC |
297 | unsigned int r_type; |
298 | ||
47b0e7ad NC |
299 | if (!i370_elf_howto_table[ R_I370_ADDR31 ]) |
300 | /* Initialize howto table. */ | |
5b93d8bb AM |
301 | i370_elf_howto_init (); |
302 | ||
cd21f5da NC |
303 | r_type = ELF32_R_TYPE (dst->r_info); |
304 | if (r_type >= R_I370_max) | |
305 | { | |
695344c0 | 306 | /* xgettext:c-format */ |
4eca0228 AM |
307 | _bfd_error_handler (_("%B: unrecognised I370 reloc number: %d"), |
308 | abfd, r_type); | |
cd21f5da NC |
309 | bfd_set_error (bfd_error_bad_value); |
310 | r_type = R_I370_NONE; | |
311 | } | |
312 | cache_ptr->howto = i370_elf_howto_table[r_type]; | |
5b93d8bb AM |
313 | } |
314 | ||
47b0e7ad NC |
315 | /* Hack alert -- the following several routines look generic to me ... |
316 | why are we bothering with them ? */ | |
6609fa74 | 317 | /* Function to set whether a module needs the -mrelocatable bit set. */ |
47b0e7ad | 318 | |
b34976b6 | 319 | static bfd_boolean |
47b0e7ad | 320 | i370_elf_set_private_flags (bfd *abfd, flagword flags) |
5b93d8bb AM |
321 | { |
322 | BFD_ASSERT (!elf_flags_init (abfd) | |
323 | || elf_elfheader (abfd)->e_flags == flags); | |
324 | ||
325 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
326 | elf_flags_init (abfd) = TRUE; |
327 | return TRUE; | |
5b93d8bb AM |
328 | } |
329 | ||
5b93d8bb | 330 | /* Merge backend specific data from an object file to the output |
47b0e7ad NC |
331 | object file when linking. */ |
332 | ||
b34976b6 | 333 | static bfd_boolean |
50e03d47 | 334 | i370_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
5b93d8bb | 335 | { |
50e03d47 | 336 | bfd *obfd = info->output_bfd; |
5b93d8bb AM |
337 | flagword old_flags; |
338 | flagword new_flags; | |
339 | ||
340 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
341 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 342 | return TRUE; |
5b93d8bb AM |
343 | |
344 | new_flags = elf_elfheader (ibfd)->e_flags; | |
345 | old_flags = elf_elfheader (obfd)->e_flags; | |
47b0e7ad | 346 | if (!elf_flags_init (obfd)) /* First call, no flags set. */ |
5b93d8bb | 347 | { |
b34976b6 | 348 | elf_flags_init (obfd) = TRUE; |
5b93d8bb AM |
349 | elf_elfheader (obfd)->e_flags = new_flags; |
350 | } | |
351 | ||
47b0e7ad | 352 | else if (new_flags == old_flags) /* Compatible flags are ok. */ |
5b93d8bb AM |
353 | ; |
354 | ||
47b0e7ad | 355 | else /* Incompatible flags. */ |
5b93d8bb | 356 | { |
4eca0228 | 357 | _bfd_error_handler |
695344c0 | 358 | /* xgettext:c-format */ |
d42c267e AM |
359 | (_("%B: uses different e_flags (%#x) fields than previous modules (%#x)"), |
360 | ibfd, new_flags, old_flags); | |
5b93d8bb AM |
361 | |
362 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 363 | return FALSE; |
5b93d8bb AM |
364 | } |
365 | ||
b34976b6 | 366 | return TRUE; |
5b93d8bb | 367 | } |
5b93d8bb AM |
368 | \f |
369 | /* Handle an i370 specific section when reading an object file. This | |
370 | is called when elfcode.h finds a section with an unknown type. */ | |
371 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
372 | certainly does the wrong thing. Its here simply because it does |
373 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 374 | |
b34976b6 | 375 | static bfd_boolean |
6dc132d9 L |
376 | i370_elf_section_from_shdr (bfd *abfd, |
377 | Elf_Internal_Shdr *hdr, | |
378 | const char *name, | |
379 | int shindex) | |
5b93d8bb AM |
380 | { |
381 | asection *newsect; | |
382 | flagword flags; | |
383 | ||
6dc132d9 | 384 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 385 | return FALSE; |
5b93d8bb AM |
386 | |
387 | newsect = hdr->bfd_section; | |
388 | flags = bfd_get_section_flags (abfd, newsect); | |
5b93d8bb AM |
389 | if (hdr->sh_type == SHT_ORDERED) |
390 | flags |= SEC_SORT_ENTRIES; | |
391 | ||
392 | bfd_set_section_flags (abfd, newsect, flags); | |
b34976b6 | 393 | return TRUE; |
5b93d8bb | 394 | } |
5b93d8bb AM |
395 | \f |
396 | /* Set up any other section flags and such that may be necessary. */ | |
397 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
398 | certainly does the wrong thing. Its here simply because it does |
399 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 400 | |
b34976b6 | 401 | static bfd_boolean |
47b0e7ad NC |
402 | i370_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, |
403 | Elf_Internal_Shdr *shdr, | |
404 | asection *asect) | |
5b93d8bb | 405 | { |
3e45f319 | 406 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
5b93d8bb AM |
407 | shdr->sh_flags |= SHF_EXCLUDE; |
408 | ||
409 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) | |
410 | shdr->sh_type = SHT_ORDERED; | |
411 | ||
b34976b6 | 412 | return TRUE; |
5b93d8bb | 413 | } |
5b93d8bb | 414 | \f |
5b93d8bb AM |
415 | /* We have to create .dynsbss and .rela.sbss here so that they get mapped |
416 | to output sections (just like _bfd_elf_create_dynamic_sections has | |
417 | to create .dynbss and .rela.bss). */ | |
418 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
419 | certainly does the wrong thing. Its here simply because it does |
420 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 421 | |
b34976b6 | 422 | static bfd_boolean |
47b0e7ad | 423 | i370_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
5b93d8bb | 424 | { |
47b0e7ad | 425 | asection *s; |
5b93d8bb AM |
426 | flagword flags; |
427 | ||
428 | if (!_bfd_elf_create_dynamic_sections(abfd, info)) | |
b34976b6 | 429 | return FALSE; |
5b93d8bb AM |
430 | |
431 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
432 | | SEC_LINKER_CREATED); | |
433 | ||
3d4d4302 AM |
434 | s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss", |
435 | SEC_ALLOC | SEC_LINKER_CREATED); | |
3496cb2a | 436 | if (s == NULL) |
b34976b6 | 437 | return FALSE; |
5b93d8bb | 438 | |
0e1862bb | 439 | if (! bfd_link_pic (info)) |
5b93d8bb | 440 | { |
3d4d4302 AM |
441 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", |
442 | flags | SEC_READONLY); | |
5b93d8bb | 443 | if (s == NULL |
5b93d8bb | 444 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 | 445 | return FALSE; |
5b93d8bb AM |
446 | } |
447 | ||
47b0e7ad | 448 | /* XXX beats me, seem to need a rela.text ... */ |
3d4d4302 AM |
449 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.text", |
450 | flags | SEC_READONLY); | |
5b93d8bb | 451 | if (s == NULL |
5b93d8bb | 452 | || ! bfd_set_section_alignment (abfd, s, 2)) |
b34976b6 AM |
453 | return FALSE; |
454 | return TRUE; | |
5b93d8bb AM |
455 | } |
456 | ||
457 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
458 | regular object. The current definition is in some section of the | |
459 | dynamic object, but we're not including those sections. We have to | |
460 | change the definition to something the rest of the link can | |
461 | understand. */ | |
462 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
463 | certainly does the wrong thing. Its here simply because it does |
464 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 465 | |
b34976b6 | 466 | static bfd_boolean |
47b0e7ad NC |
467 | i370_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
468 | struct elf_link_hash_entry *h) | |
5b93d8bb AM |
469 | { |
470 | bfd *dynobj = elf_hash_table (info)->dynobj; | |
471 | asection *s; | |
5b93d8bb AM |
472 | |
473 | #ifdef DEBUG | |
474 | fprintf (stderr, "i370_elf_adjust_dynamic_symbol called for %s\n", | |
475 | h->root.root.string); | |
476 | #endif | |
477 | ||
478 | /* Make sure we know what is going on here. */ | |
479 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 480 | && (h->needs_plt |
f6e332e6 | 481 | || h->u.weakdef != NULL |
f5385ebf AM |
482 | || (h->def_dynamic |
483 | && h->ref_regular | |
484 | && !h->def_regular))); | |
5b93d8bb | 485 | |
3d4d4302 | 486 | s = bfd_get_linker_section (dynobj, ".rela.text"); |
5b93d8bb | 487 | BFD_ASSERT (s != NULL); |
eea6121a | 488 | s->size += sizeof (Elf32_External_Rela); |
5b93d8bb AM |
489 | |
490 | /* If this is a weak symbol, and there is a real definition, the | |
491 | processor independent code will have arranged for us to see the | |
492 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 493 | if (h->u.weakdef != NULL) |
5b93d8bb | 494 | { |
f6e332e6 AM |
495 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
496 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
497 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
498 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
b34976b6 | 499 | return TRUE; |
5b93d8bb AM |
500 | } |
501 | ||
502 | /* This is a reference to a symbol defined by a dynamic object which | |
503 | is not a function. */ | |
504 | ||
505 | /* If we are creating a shared library, we must presume that the | |
506 | only references to the symbol are via the global offset table. | |
507 | For such cases we need not do anything here; the relocations will | |
508 | be handled correctly by relocate_section. */ | |
0e1862bb | 509 | if (bfd_link_pic (info)) |
b34976b6 | 510 | return TRUE; |
5b93d8bb AM |
511 | |
512 | /* We must allocate the symbol in our .dynbss section, which will | |
513 | become part of the .bss section of the executable. There will be | |
514 | an entry for this symbol in the .dynsym section. The dynamic | |
515 | object will contain position independent code, so all references | |
516 | from the dynamic object to this symbol will go through the global | |
517 | offset table. The dynamic linker will use the .dynsym entry to | |
518 | determine the address it must put in the global offset table, so | |
519 | both the dynamic object and the regular object will refer to the | |
520 | same memory location for the variable. | |
521 | ||
522 | Of course, if the symbol is sufficiently small, we must instead | |
523 | allocate it in .sbss. FIXME: It would be better to do this if and | |
524 | only if there were actually SDAREL relocs for that symbol. */ | |
525 | ||
526 | if (h->size <= elf_gp_size (dynobj)) | |
3d4d4302 | 527 | s = bfd_get_linker_section (dynobj, ".dynsbss"); |
5b93d8bb | 528 | else |
3d4d4302 | 529 | s = bfd_get_linker_section (dynobj, ".dynbss"); |
5b93d8bb AM |
530 | BFD_ASSERT (s != NULL); |
531 | ||
532 | /* We must generate a R_I370_COPY reloc to tell the dynamic linker to | |
533 | copy the initial value out of the dynamic object and into the | |
534 | runtime process image. We need to remember the offset into the | |
535 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 536 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
5b93d8bb AM |
537 | { |
538 | asection *srel; | |
539 | ||
540 | if (h->size <= elf_gp_size (dynobj)) | |
3d4d4302 | 541 | srel = bfd_get_linker_section (dynobj, ".rela.sbss"); |
5b93d8bb | 542 | else |
3d4d4302 | 543 | srel = bfd_get_linker_section (dynobj, ".rela.bss"); |
5b93d8bb | 544 | BFD_ASSERT (srel != NULL); |
eea6121a | 545 | srel->size += sizeof (Elf32_External_Rela); |
f5385ebf | 546 | h->needs_copy = 1; |
5b93d8bb AM |
547 | } |
548 | ||
6cabe1ea | 549 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
5b93d8bb | 550 | } |
5b93d8bb AM |
551 | \f |
552 | /* Increment the index of a dynamic symbol by a given amount. Called | |
553 | via elf_link_hash_traverse. */ | |
554 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
555 | certainly does the wrong thing. Its here simply because it does |
556 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 557 | |
b34976b6 | 558 | static bfd_boolean |
47b0e7ad | 559 | i370_elf_adjust_dynindx (struct elf_link_hash_entry *h, void * cparg) |
5b93d8bb AM |
560 | { |
561 | int *cp = (int *) cparg; | |
562 | ||
563 | #ifdef DEBUG | |
564 | fprintf (stderr, | |
e460dd0d | 565 | "i370_elf_adjust_dynindx called, h->dynindx = %ld, *cp = %d\n", |
5b93d8bb AM |
566 | h->dynindx, *cp); |
567 | #endif | |
568 | ||
569 | if (h->dynindx != -1) | |
570 | h->dynindx += *cp; | |
571 | ||
b34976b6 | 572 | return TRUE; |
5b93d8bb | 573 | } |
5b93d8bb AM |
574 | \f |
575 | /* Set the sizes of the dynamic sections. */ | |
576 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
577 | certainly does the wrong thing. Its here simply because it does |
578 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 579 | |
b34976b6 | 580 | static bfd_boolean |
47b0e7ad NC |
581 | i370_elf_size_dynamic_sections (bfd *output_bfd, |
582 | struct bfd_link_info *info) | |
5b93d8bb AM |
583 | { |
584 | bfd *dynobj; | |
585 | asection *s; | |
b34976b6 AM |
586 | bfd_boolean plt; |
587 | bfd_boolean relocs; | |
588 | bfd_boolean reltext; | |
5b93d8bb AM |
589 | |
590 | #ifdef DEBUG | |
591 | fprintf (stderr, "i370_elf_size_dynamic_sections called\n"); | |
592 | #endif | |
593 | ||
594 | dynobj = elf_hash_table (info)->dynobj; | |
595 | BFD_ASSERT (dynobj != NULL); | |
596 | ||
597 | if (elf_hash_table (info)->dynamic_sections_created) | |
598 | { | |
599 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 600 | if (bfd_link_executable (info) && !info->nointerp) |
5b93d8bb | 601 | { |
3d4d4302 | 602 | s = bfd_get_linker_section (dynobj, ".interp"); |
5b93d8bb | 603 | BFD_ASSERT (s != NULL); |
eea6121a | 604 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
5b93d8bb AM |
605 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
606 | } | |
607 | } | |
608 | else | |
609 | { | |
610 | /* We may have created entries in the .rela.got, .rela.sdata, and | |
611 | .rela.sdata2 sections. However, if we are not creating the | |
612 | dynamic sections, we will not actually use these entries. Reset | |
613 | the size of .rela.got, et al, which will cause it to get | |
614 | stripped from the output file below. */ | |
615 | static char *rela_sections[] = { ".rela.got", ".rela.sdata", | |
616 | ".rela.sdata2", ".rela.sbss", | |
47b0e7ad | 617 | NULL }; |
5b93d8bb AM |
618 | char **p; |
619 | ||
47b0e7ad | 620 | for (p = rela_sections; *p != NULL; p++) |
5b93d8bb | 621 | { |
3d4d4302 | 622 | s = bfd_get_linker_section (dynobj, *p); |
5b93d8bb | 623 | if (s != NULL) |
eea6121a | 624 | s->size = 0; |
5b93d8bb AM |
625 | } |
626 | } | |
627 | ||
628 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
629 | determined the sizes of the various dynamic sections. Allocate | |
630 | memory for them. */ | |
b34976b6 AM |
631 | plt = FALSE; |
632 | relocs = FALSE; | |
633 | reltext = FALSE; | |
5b93d8bb AM |
634 | for (s = dynobj->sections; s != NULL; s = s->next) |
635 | { | |
636 | const char *name; | |
5b93d8bb AM |
637 | |
638 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
639 | continue; | |
640 | ||
641 | /* It's OK to base decisions on the section name, because none | |
642 | of the dynobj section names depend upon the input files. */ | |
643 | name = bfd_get_section_name (dynobj, s); | |
5b93d8bb AM |
644 | |
645 | if (strcmp (name, ".plt") == 0) | |
646 | { | |
c456f082 AM |
647 | /* Remember whether there is a PLT. */ |
648 | plt = s->size != 0; | |
5b93d8bb | 649 | } |
0112cd26 | 650 | else if (CONST_STRNEQ (name, ".rela")) |
5b93d8bb | 651 | { |
c456f082 | 652 | if (s->size != 0) |
5b93d8bb AM |
653 | { |
654 | asection *target; | |
655 | const char *outname; | |
656 | ||
6609fa74 | 657 | /* Remember whether there are any relocation sections. */ |
b34976b6 | 658 | relocs = TRUE; |
5b93d8bb AM |
659 | |
660 | /* If this relocation section applies to a read only | |
661 | section, then we probably need a DT_TEXTREL entry. */ | |
662 | outname = bfd_get_section_name (output_bfd, | |
663 | s->output_section); | |
664 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
665 | if (target != NULL | |
666 | && (target->flags & SEC_READONLY) != 0 | |
667 | && (target->flags & SEC_ALLOC) != 0) | |
b34976b6 | 668 | reltext = TRUE; |
5b93d8bb AM |
669 | |
670 | /* We use the reloc_count field as a counter if we need | |
671 | to copy relocs into the output file. */ | |
672 | s->reloc_count = 0; | |
673 | } | |
674 | } | |
675 | else if (strcmp (name, ".got") != 0 | |
676 | && strcmp (name, ".sdata") != 0 | |
c456f082 AM |
677 | && strcmp (name, ".sdata2") != 0 |
678 | && strcmp (name, ".dynbss") != 0 | |
679 | && strcmp (name, ".dynsbss") != 0) | |
680 | { | |
681 | /* It's not one of our sections, so don't allocate space. */ | |
682 | continue; | |
683 | } | |
5b93d8bb | 684 | |
c456f082 | 685 | if (s->size == 0) |
5b93d8bb | 686 | { |
c456f082 AM |
687 | /* If we don't need this section, strip it from the |
688 | output file. This is mostly to handle .rela.bss and | |
689 | .rela.plt. We must create both sections in | |
690 | create_dynamic_sections, because they must be created | |
691 | before the linker maps input sections to output | |
692 | sections. The linker does that before | |
693 | adjust_dynamic_symbol is called, and it is that | |
694 | function which decides whether anything needs to go | |
695 | into these sections. */ | |
696 | s->flags |= SEC_EXCLUDE; | |
5b93d8bb AM |
697 | continue; |
698 | } | |
c456f082 AM |
699 | |
700 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
701 | continue; | |
702 | ||
5b93d8bb | 703 | /* Allocate memory for the section contents. */ |
47b0e7ad | 704 | s->contents = bfd_zalloc (dynobj, s->size); |
c456f082 | 705 | if (s->contents == NULL) |
b34976b6 | 706 | return FALSE; |
5b93d8bb AM |
707 | } |
708 | ||
709 | if (elf_hash_table (info)->dynamic_sections_created) | |
710 | { | |
711 | /* Add some entries to the .dynamic section. We fill in the | |
712 | values later, in i370_elf_finish_dynamic_sections, but we | |
713 | must add the entries now so that we get the correct size for | |
714 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
715 | dynamic linker and used by the debugger. */ | |
dc810e39 | 716 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 717 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 718 | |
0e1862bb | 719 | if (!bfd_link_pic (info)) |
5b93d8bb | 720 | { |
dc810e39 | 721 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 722 | return FALSE; |
5b93d8bb AM |
723 | } |
724 | ||
725 | if (plt) | |
726 | { | |
dc810e39 AM |
727 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
728 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
729 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
730 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 731 | return FALSE; |
5b93d8bb AM |
732 | } |
733 | ||
734 | if (relocs) | |
735 | { | |
dc810e39 AM |
736 | if (!add_dynamic_entry (DT_RELA, 0) |
737 | || !add_dynamic_entry (DT_RELASZ, 0) | |
738 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 739 | return FALSE; |
5b93d8bb AM |
740 | } |
741 | ||
742 | if (reltext) | |
743 | { | |
dc810e39 | 744 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 745 | return FALSE; |
d6cf2879 | 746 | info->flags |= DF_TEXTREL; |
5b93d8bb AM |
747 | } |
748 | } | |
dc810e39 | 749 | #undef add_dynamic_entry |
5b93d8bb AM |
750 | |
751 | /* If we are generating a shared library, we generate a section | |
752 | symbol for each output section. These are local symbols, which | |
753 | means that they must come first in the dynamic symbol table. | |
754 | That means we must increment the dynamic symbol index of every | |
755 | other dynamic symbol. | |
756 | ||
757 | FIXME: We assume that there will never be relocations to | |
758 | locations in linker-created sections that do not have | |
759 | externally-visible names. Instead, we should work out precisely | |
4cc11e76 | 760 | which sections relocations are targeted at. */ |
0e1862bb | 761 | if (bfd_link_pic (info)) |
5b93d8bb AM |
762 | { |
763 | int c; | |
764 | ||
765 | for (c = 0, s = output_bfd->sections; s != NULL; s = s->next) | |
766 | { | |
767 | if ((s->flags & SEC_LINKER_CREATED) != 0 | |
768 | || (s->flags & SEC_ALLOC) == 0) | |
769 | { | |
770 | elf_section_data (s)->dynindx = -1; | |
771 | continue; | |
772 | } | |
773 | ||
774 | /* These symbols will have no names, so we don't need to | |
775 | fiddle with dynstr_index. */ | |
776 | ||
777 | elf_section_data (s)->dynindx = c + 1; | |
778 | ||
779 | c++; | |
780 | } | |
781 | ||
782 | elf_link_hash_traverse (elf_hash_table (info), | |
47b0e7ad | 783 | i370_elf_adjust_dynindx, & c); |
5b93d8bb AM |
784 | elf_hash_table (info)->dynsymcount += c; |
785 | } | |
786 | ||
b34976b6 | 787 | return TRUE; |
5b93d8bb | 788 | } |
5b93d8bb AM |
789 | \f |
790 | /* Look through the relocs for a section during the first phase, and | |
791 | allocate space in the global offset table or procedure linkage | |
792 | table. */ | |
793 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
794 | certainly does the wrong thing. Its here simply because it does |
795 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 796 | |
b34976b6 | 797 | static bfd_boolean |
47b0e7ad NC |
798 | i370_elf_check_relocs (bfd *abfd, |
799 | struct bfd_link_info *info, | |
800 | asection *sec, | |
801 | const Elf_Internal_Rela *relocs) | |
5b93d8bb AM |
802 | { |
803 | bfd *dynobj; | |
804 | Elf_Internal_Shdr *symtab_hdr; | |
805 | struct elf_link_hash_entry **sym_hashes; | |
806 | const Elf_Internal_Rela *rel; | |
807 | const Elf_Internal_Rela *rel_end; | |
5b93d8bb | 808 | asection *sreloc; |
5b93d8bb | 809 | |
0e1862bb | 810 | if (bfd_link_relocatable (info)) |
b34976b6 | 811 | return TRUE; |
5b93d8bb AM |
812 | |
813 | #ifdef DEBUG | |
d003868e AM |
814 | _bfd_error_handler ("i370_elf_check_relocs called for section %A in %B", |
815 | sec, abfd); | |
5b93d8bb AM |
816 | #endif |
817 | ||
818 | dynobj = elf_hash_table (info)->dynobj; | |
819 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
820 | sym_hashes = elf_sym_hashes (abfd); | |
5b93d8bb AM |
821 | |
822 | sreloc = NULL; | |
823 | ||
824 | rel_end = relocs + sec->reloc_count; | |
825 | for (rel = relocs; rel < rel_end; rel++) | |
826 | { | |
827 | unsigned long r_symndx; | |
828 | struct elf_link_hash_entry *h; | |
829 | ||
830 | r_symndx = ELF32_R_SYM (rel->r_info); | |
831 | if (r_symndx < symtab_hdr->sh_info) | |
832 | h = NULL; | |
833 | else | |
973a3492 L |
834 | { |
835 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
836 | while (h->root.type == bfd_link_hash_indirect | |
837 | || h->root.type == bfd_link_hash_warning) | |
838 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
839 | |
840 | /* PR15323, ref flags aren't set for references in the same | |
841 | object. */ | |
bc4e12de | 842 | h->root.non_ir_ref_regular = 1; |
973a3492 | 843 | } |
5b93d8bb | 844 | |
0e1862bb | 845 | if (bfd_link_pic (info)) |
5b93d8bb AM |
846 | { |
847 | #ifdef DEBUG | |
848 | fprintf (stderr, | |
849 | "i370_elf_check_relocs needs to create relocation for %s\n", | |
850 | (h && h->root.root.string) | |
851 | ? h->root.root.string : "<unknown>"); | |
852 | #endif | |
853 | if (sreloc == NULL) | |
854 | { | |
83bac4b0 NC |
855 | sreloc = _bfd_elf_make_dynamic_reloc_section |
856 | (sec, dynobj, 2, abfd, /*rela?*/ TRUE); | |
5b93d8bb | 857 | |
5b93d8bb | 858 | if (sreloc == NULL) |
83bac4b0 | 859 | return FALSE; |
5b93d8bb AM |
860 | } |
861 | ||
eea6121a | 862 | sreloc->size += sizeof (Elf32_External_Rela); |
5b93d8bb AM |
863 | |
864 | /* FIXME: We should here do what the m68k and i386 | |
865 | backends do: if the reloc is pc-relative, record it | |
866 | in case it turns out that the reloc is unnecessary | |
867 | because the symbol is forced local by versioning or | |
868 | we are linking with -Bdynamic. Fortunately this | |
869 | case is not frequent. */ | |
870 | } | |
871 | } | |
872 | ||
b34976b6 | 873 | return TRUE; |
5b93d8bb | 874 | } |
5b93d8bb AM |
875 | \f |
876 | /* Finish up the dynamic sections. */ | |
877 | /* XXX hack alert bogus This routine is mostly all junk and almost | |
47b0e7ad NC |
878 | certainly does the wrong thing. Its here simply because it does |
879 | just enough to allow glibc-2.1 ld.so to compile & link. */ | |
5b93d8bb | 880 | |
b34976b6 | 881 | static bfd_boolean |
47b0e7ad NC |
882 | i370_elf_finish_dynamic_sections (bfd *output_bfd, |
883 | struct bfd_link_info *info) | |
5b93d8bb AM |
884 | { |
885 | asection *sdyn; | |
886 | bfd *dynobj = elf_hash_table (info)->dynobj; | |
ce558b89 | 887 | asection *sgot = elf_hash_table (info)->sgot; |
5b93d8bb AM |
888 | |
889 | #ifdef DEBUG | |
890 | fprintf (stderr, "i370_elf_finish_dynamic_sections called\n"); | |
891 | #endif | |
892 | ||
3d4d4302 | 893 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
5b93d8bb AM |
894 | |
895 | if (elf_hash_table (info)->dynamic_sections_created) | |
896 | { | |
897 | asection *splt; | |
898 | Elf32_External_Dyn *dyncon, *dynconend; | |
899 | ||
ce558b89 | 900 | splt = elf_hash_table (info)->splt; |
5b93d8bb AM |
901 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
902 | ||
903 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 904 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
5b93d8bb AM |
905 | for (; dyncon < dynconend; dyncon++) |
906 | { | |
907 | Elf_Internal_Dyn dyn; | |
ce558b89 | 908 | asection *s; |
b34976b6 | 909 | bfd_boolean size; |
5b93d8bb AM |
910 | |
911 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
912 | ||
913 | switch (dyn.d_tag) | |
914 | { | |
ce558b89 AM |
915 | case DT_PLTGOT: |
916 | s = elf_hash_table (info)->splt; | |
917 | size = FALSE; | |
918 | break; | |
919 | case DT_PLTRELSZ: | |
920 | s = elf_hash_table (info)->srelplt; | |
921 | size = TRUE; | |
922 | break; | |
923 | case DT_JMPREL: | |
924 | s = elf_hash_table (info)->srelplt; | |
925 | size = FALSE; | |
926 | break; | |
927 | default: | |
928 | continue; | |
5b93d8bb AM |
929 | } |
930 | ||
ce558b89 AM |
931 | if (s == NULL) |
932 | dyn.d_un.d_val = 0; | |
933 | else | |
5b93d8bb | 934 | { |
ce558b89 AM |
935 | if (!size) |
936 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
5b93d8bb | 937 | else |
ce558b89 | 938 | dyn.d_un.d_val = s->size; |
5b93d8bb | 939 | } |
ce558b89 | 940 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
5b93d8bb AM |
941 | } |
942 | } | |
943 | ||
c456f082 | 944 | if (sgot && sgot->size != 0) |
5b93d8bb AM |
945 | { |
946 | unsigned char *contents = sgot->contents; | |
5b93d8bb AM |
947 | |
948 | if (sdyn == NULL) | |
3b36f7e6 | 949 | bfd_put_32 (output_bfd, (bfd_vma) 0, contents); |
5b93d8bb AM |
950 | else |
951 | bfd_put_32 (output_bfd, | |
952 | sdyn->output_section->vma + sdyn->output_offset, | |
3b36f7e6 | 953 | contents); |
5b93d8bb AM |
954 | |
955 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
956 | } | |
957 | ||
0e1862bb | 958 | if (bfd_link_pic (info)) |
5b93d8bb AM |
959 | { |
960 | asection *sdynsym; | |
961 | asection *s; | |
962 | Elf_Internal_Sym sym; | |
963 | int maxdindx = 0; | |
964 | ||
965 | /* Set up the section symbols for the output sections. */ | |
966 | ||
3d4d4302 | 967 | sdynsym = bfd_get_linker_section (dynobj, ".dynsym"); |
5b93d8bb AM |
968 | BFD_ASSERT (sdynsym != NULL); |
969 | ||
970 | sym.st_size = 0; | |
971 | sym.st_name = 0; | |
972 | sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); | |
973 | sym.st_other = 0; | |
35fc36a8 | 974 | sym.st_target_internal = 0; |
5b93d8bb AM |
975 | |
976 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
977 | { | |
978 | int indx, dindx; | |
9ad5cbcf | 979 | Elf32_External_Sym *esym; |
5b93d8bb AM |
980 | |
981 | sym.st_value = s->vma; | |
982 | ||
983 | indx = elf_section_data (s)->this_idx; | |
984 | dindx = elf_section_data (s)->dynindx; | |
985 | if (dindx != -1) | |
986 | { | |
987 | BFD_ASSERT(indx > 0); | |
988 | BFD_ASSERT(dindx > 0); | |
989 | ||
990 | if (dindx > maxdindx) | |
991 | maxdindx = dindx; | |
992 | ||
993 | sym.st_shndx = indx; | |
994 | ||
9ad5cbcf | 995 | esym = (Elf32_External_Sym *) sdynsym->contents + dindx; |
47b0e7ad | 996 | bfd_elf32_swap_symbol_out (output_bfd, &sym, esym, NULL); |
5b93d8bb AM |
997 | } |
998 | } | |
999 | ||
1000 | /* Set the sh_info field of the output .dynsym section to the | |
3b36f7e6 | 1001 | index of the first global symbol. */ |
5b93d8bb AM |
1002 | elf_section_data (sdynsym->output_section)->this_hdr.sh_info = |
1003 | maxdindx + 1; | |
1004 | } | |
1005 | ||
b34976b6 | 1006 | return TRUE; |
5b93d8bb | 1007 | } |
5b93d8bb AM |
1008 | \f |
1009 | /* The RELOCATE_SECTION function is called by the ELF backend linker | |
1010 | to handle the relocations for a section. | |
1011 | ||
1012 | The relocs are always passed as Rela structures; if the section | |
1013 | actually uses Rel structures, the r_addend field will always be | |
1014 | zero. | |
1015 | ||
1016 | This function is responsible for adjust the section contents as | |
1017 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 1018 | relocatable output file) adjusting the reloc addend as |
5b93d8bb AM |
1019 | necessary. |
1020 | ||
1021 | This function does not have to worry about setting the reloc | |
1022 | address or the reloc symbol index. | |
1023 | ||
1024 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
1025 | ||
1026 | LOCAL_SECTIONS is an array giving the section in the input file | |
1027 | corresponding to the st_shndx field of each local symbol. | |
1028 | ||
1029 | The global hash table entry for the global symbols can be found | |
1030 | via elf_sym_hashes (input_bfd). | |
1031 | ||
1049f94e | 1032 | When generating relocatable output, this function must handle |
5b93d8bb AM |
1033 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
1034 | going to be the section symbol corresponding to the output | |
1035 | section, which means that the addend must be adjusted | |
1036 | accordingly. */ | |
1037 | ||
b34976b6 | 1038 | static bfd_boolean |
47b0e7ad NC |
1039 | i370_elf_relocate_section (bfd *output_bfd, |
1040 | struct bfd_link_info *info, | |
1041 | bfd *input_bfd, | |
1042 | asection *input_section, | |
1043 | bfd_byte *contents, | |
1044 | Elf_Internal_Rela *relocs, | |
1045 | Elf_Internal_Sym *local_syms, | |
1046 | asection **local_sections) | |
5b93d8bb | 1047 | { |
b34976b6 | 1048 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
5b93d8bb | 1049 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
b34976b6 AM |
1050 | Elf_Internal_Rela *rel = relocs; |
1051 | Elf_Internal_Rela *relend = relocs + input_section->reloc_count; | |
1052 | asection *sreloc = NULL; | |
b34976b6 | 1053 | bfd_boolean ret = TRUE; |
5b93d8bb AM |
1054 | |
1055 | #ifdef DEBUG | |
d42c267e | 1056 | _bfd_error_handler ("i370_elf_relocate_section called for %B section %A, %u relocations%s", |
d003868e | 1057 | input_bfd, input_section, |
d42c267e | 1058 | input_section->reloc_count, |
0e1862bb | 1059 | (bfd_link_relocatable (info)) ? " (relocatable)" : ""); |
5b93d8bb AM |
1060 | #endif |
1061 | ||
47b0e7ad NC |
1062 | if (!i370_elf_howto_table[ R_I370_ADDR31 ]) |
1063 | /* Initialize howto table if needed. */ | |
5b93d8bb AM |
1064 | i370_elf_howto_init (); |
1065 | ||
5b93d8bb AM |
1066 | for (; rel < relend; rel++) |
1067 | { | |
47b0e7ad NC |
1068 | enum i370_reloc_type r_type = (enum i370_reloc_type) ELF32_R_TYPE (rel->r_info); |
1069 | bfd_vma offset = rel->r_offset; | |
1070 | bfd_vma addend = rel->r_addend; | |
1071 | bfd_reloc_status_type r = bfd_reloc_other; | |
1072 | Elf_Internal_Sym *sym = NULL; | |
1073 | asection *sec = NULL; | |
1074 | struct elf_link_hash_entry * h = NULL; | |
1075 | const char *sym_name = NULL; | |
5b93d8bb AM |
1076 | reloc_howto_type *howto; |
1077 | unsigned long r_symndx; | |
1078 | bfd_vma relocation; | |
1079 | ||
47b0e7ad NC |
1080 | /* Unknown relocation handling. */ |
1081 | if ((unsigned) r_type >= (unsigned) R_I370_max | |
5b93d8bb AM |
1082 | || !i370_elf_howto_table[(int)r_type]) |
1083 | { | |
695344c0 NC |
1084 | /* xgettext:c-format */ |
1085 | _bfd_error_handler (_("%B: unknown relocation type %d"), | |
4eca0228 | 1086 | input_bfd, (int) r_type); |
5b93d8bb AM |
1087 | |
1088 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1089 | ret = FALSE; |
5b93d8bb AM |
1090 | continue; |
1091 | } | |
1092 | ||
47b0e7ad | 1093 | howto = i370_elf_howto_table[(int) r_type]; |
5b93d8bb | 1094 | r_symndx = ELF32_R_SYM (rel->r_info); |
ab96bf03 | 1095 | relocation = 0; |
5b93d8bb | 1096 | |
5b93d8bb AM |
1097 | if (r_symndx < symtab_hdr->sh_info) |
1098 | { | |
1099 | sym = local_syms + r_symndx; | |
1100 | sec = local_sections[r_symndx]; | |
1101 | sym_name = "<local symbol>"; | |
1102 | ||
47b0e7ad | 1103 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, & sec, rel); |
f8df10f4 | 1104 | addend = rel->r_addend; |
5b93d8bb AM |
1105 | } |
1106 | else | |
1107 | { | |
1108 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
8a5da09b AM |
1109 | |
1110 | if (info->wrap_hash != NULL | |
1111 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
1112 | h = ((struct elf_link_hash_entry *) | |
1113 | unwrap_hash_lookup (info, input_bfd, &h->root)); | |
1114 | ||
5b93d8bb AM |
1115 | while (h->root.type == bfd_link_hash_indirect |
1116 | || h->root.type == bfd_link_hash_warning) | |
1117 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1118 | sym_name = h->root.root.string; | |
1119 | if (h->root.type == bfd_link_hash_defined | |
1120 | || h->root.type == bfd_link_hash_defweak) | |
1121 | { | |
1122 | sec = h->root.u.def.section; | |
0e1862bb | 1123 | if (bfd_link_pic (info) |
5b93d8bb | 1124 | && ((! info->symbolic && h->dynindx != -1) |
f5385ebf | 1125 | || !h->def_regular) |
5b93d8bb AM |
1126 | && (input_section->flags & SEC_ALLOC) != 0 |
1127 | && (r_type == R_I370_ADDR31 | |
1128 | || r_type == R_I370_COPY | |
1129 | || r_type == R_I370_ADDR16 | |
1130 | || r_type == R_I370_RELATIVE)) | |
47b0e7ad NC |
1131 | /* In these cases, we don't need the relocation |
1132 | value. We check specially because in some | |
1133 | obscure cases sec->output_section will be NULL. */ | |
ab96bf03 | 1134 | ; |
5b93d8bb AM |
1135 | else |
1136 | relocation = (h->root.u.def.value | |
1137 | + sec->output_section->vma | |
1138 | + sec->output_offset); | |
1139 | } | |
1140 | else if (h->root.type == bfd_link_hash_undefweak) | |
ab96bf03 | 1141 | ; |
59c2e50f | 1142 | else if (info->unresolved_syms_in_objects == RM_IGNORE |
3a27a730 | 1143 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
ab96bf03 | 1144 | ; |
0e1862bb | 1145 | else if (!bfd_link_relocatable (info)) |
5b93d8bb | 1146 | { |
1a72702b AM |
1147 | (*info->callbacks->undefined_symbol) |
1148 | (info, h->root.root.string, input_bfd, | |
1149 | input_section, rel->r_offset, | |
1150 | (info->unresolved_syms_in_objects == RM_GENERATE_ERROR | |
1151 | || ELF_ST_VISIBILITY (h->other))); | |
1152 | ret = FALSE; | |
1153 | continue; | |
5b93d8bb AM |
1154 | } |
1155 | } | |
1156 | ||
dbaa2011 | 1157 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 1158 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 1159 | rel, 1, relend, howto, 0, contents); |
ab96bf03 | 1160 | |
0e1862bb | 1161 | if (bfd_link_relocatable (info)) |
ab96bf03 AM |
1162 | continue; |
1163 | ||
8f615d07 | 1164 | switch ((int) r_type) |
5b93d8bb AM |
1165 | { |
1166 | default: | |
4eca0228 | 1167 | _bfd_error_handler |
695344c0 | 1168 | (_("%B: unknown relocation type %d for symbol %s"), |
d003868e | 1169 | input_bfd, (int) r_type, sym_name); |
5b93d8bb AM |
1170 | |
1171 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1172 | ret = FALSE; |
5b93d8bb AM |
1173 | continue; |
1174 | ||
47b0e7ad | 1175 | case (int) R_I370_NONE: |
7595d193 L |
1176 | continue; |
1177 | ||
5b93d8bb | 1178 | /* Relocations that may need to be propagated if this is a shared |
3b36f7e6 | 1179 | object. */ |
47b0e7ad | 1180 | case (int) R_I370_REL31: |
5b93d8bb AM |
1181 | /* If these relocations are not to a named symbol, they can be |
1182 | handled right here, no need to bother the dynamic linker. */ | |
1183 | if (h == NULL | |
1184 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1185 | break; | |
47b0e7ad | 1186 | /* Fall through. */ |
5b93d8bb AM |
1187 | |
1188 | /* Relocations that always need to be propagated if this is a shared | |
3b36f7e6 | 1189 | object. */ |
47b0e7ad NC |
1190 | case (int) R_I370_ADDR31: |
1191 | case (int) R_I370_ADDR16: | |
0e1862bb | 1192 | if (bfd_link_pic (info) |
cf35638d | 1193 | && r_symndx != STN_UNDEF) |
5b93d8bb AM |
1194 | { |
1195 | Elf_Internal_Rela outrel; | |
947216bf | 1196 | bfd_byte *loc; |
0bb2d96a | 1197 | int skip; |
5b93d8bb AM |
1198 | |
1199 | #ifdef DEBUG | |
1200 | fprintf (stderr, | |
1201 | "i370_elf_relocate_section needs to create relocation for %s\n", | |
1202 | (h && h->root.root.string) ? h->root.root.string : "<unknown>"); | |
1203 | #endif | |
1204 | ||
1205 | /* When generating a shared object, these relocations | |
3b36f7e6 AM |
1206 | are copied into the output file to be resolved at run |
1207 | time. */ | |
5b93d8bb AM |
1208 | |
1209 | if (sreloc == NULL) | |
1210 | { | |
83bac4b0 NC |
1211 | sreloc = _bfd_elf_get_dynamic_reloc_section |
1212 | (input_bfd, input_section, /*rela?*/ TRUE); | |
1213 | if (sreloc == NULL) | |
b34976b6 | 1214 | return FALSE; |
5b93d8bb AM |
1215 | } |
1216 | ||
0bb2d96a | 1217 | skip = 0; |
5b93d8bb | 1218 | |
c629eae0 JJ |
1219 | outrel.r_offset = |
1220 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1221 | rel->r_offset); | |
0bb2d96a JJ |
1222 | if (outrel.r_offset == (bfd_vma) -1 |
1223 | || outrel.r_offset == (bfd_vma) -2) | |
1224 | skip = (int) outrel.r_offset; | |
5b93d8bb AM |
1225 | outrel.r_offset += (input_section->output_section->vma |
1226 | + input_section->output_offset); | |
1227 | ||
1228 | if (skip) | |
1229 | memset (&outrel, 0, sizeof outrel); | |
1230 | /* h->dynindx may be -1 if this symbol was marked to | |
3b36f7e6 | 1231 | become local. */ |
5b93d8bb AM |
1232 | else if (h != NULL |
1233 | && ((! info->symbolic && h->dynindx != -1) | |
f5385ebf | 1234 | || !h->def_regular)) |
5b93d8bb AM |
1235 | { |
1236 | BFD_ASSERT (h->dynindx != -1); | |
1237 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1238 | outrel.r_addend = rel->r_addend; | |
1239 | } | |
1240 | else | |
1241 | { | |
1242 | if (r_type == R_I370_ADDR31) | |
1243 | { | |
1244 | outrel.r_info = ELF32_R_INFO (0, R_I370_RELATIVE); | |
1245 | outrel.r_addend = relocation + rel->r_addend; | |
1246 | } | |
1247 | else | |
1248 | { | |
1249 | long indx; | |
1250 | ||
8517fae7 | 1251 | if (bfd_is_abs_section (sec)) |
5b93d8bb AM |
1252 | indx = 0; |
1253 | else if (sec == NULL || sec->owner == NULL) | |
1254 | { | |
1255 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1256 | return FALSE; |
5b93d8bb AM |
1257 | } |
1258 | else | |
1259 | { | |
1260 | asection *osec; | |
1261 | ||
74541ad4 AM |
1262 | /* We are turning this relocation into one |
1263 | against a section symbol. It would be | |
1264 | proper to subtract the symbol's value, | |
1265 | osec->vma, from the emitted reloc addend, | |
1266 | but ld.so expects buggy relocs. */ | |
5b93d8bb AM |
1267 | osec = sec->output_section; |
1268 | indx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
1269 | if (indx == 0) |
1270 | { | |
1271 | struct elf_link_hash_table *htab; | |
1272 | htab = elf_hash_table (info); | |
1273 | osec = htab->text_index_section; | |
1274 | indx = elf_section_data (osec)->dynindx; | |
1275 | } | |
1276 | BFD_ASSERT (indx != 0); | |
5b93d8bb AM |
1277 | #ifdef DEBUG |
1278 | if (indx <= 0) | |
1279 | { | |
e460dd0d | 1280 | printf ("indx=%ld section=%s flags=%08x name=%s\n", |
6609fa74 KH |
1281 | indx, osec->name, osec->flags, |
1282 | h->root.root.string); | |
5b93d8bb AM |
1283 | } |
1284 | #endif | |
1285 | } | |
1286 | ||
1287 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
1288 | outrel.r_addend = relocation + rel->r_addend; | |
1289 | } | |
1290 | } | |
1291 | ||
947216bf AM |
1292 | loc = sreloc->contents; |
1293 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1294 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
5b93d8bb AM |
1295 | |
1296 | /* This reloc will be computed at runtime, so there's no | |
3b36f7e6 AM |
1297 | need to do anything now, unless this is a RELATIVE |
1298 | reloc in an unallocated section. */ | |
0bb2d96a | 1299 | if (skip == -1 |
5b93d8bb AM |
1300 | || (input_section->flags & SEC_ALLOC) != 0 |
1301 | || ELF32_R_TYPE (outrel.r_info) != R_I370_RELATIVE) | |
1302 | continue; | |
1303 | } | |
1304 | break; | |
1305 | ||
47b0e7ad NC |
1306 | case (int) R_I370_COPY: |
1307 | case (int) R_I370_RELATIVE: | |
4eca0228 | 1308 | _bfd_error_handler |
695344c0 NC |
1309 | /* xgettext:c-format */ |
1310 | (_("%B: Relocation %s is not yet supported for symbol %s."), | |
d003868e | 1311 | input_bfd, |
8f615d07 AM |
1312 | i370_elf_howto_table[(int) r_type]->name, |
1313 | sym_name); | |
5b93d8bb AM |
1314 | |
1315 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1316 | ret = FALSE; |
5b93d8bb AM |
1317 | continue; |
1318 | } | |
1319 | ||
5b93d8bb AM |
1320 | #ifdef DEBUG |
1321 | fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, offset = %ld, addend = %ld\n", | |
1322 | howto->name, | |
1323 | (int)r_type, | |
1324 | sym_name, | |
1325 | r_symndx, | |
47b0e7ad NC |
1326 | (long) offset, |
1327 | (long) addend); | |
5b93d8bb AM |
1328 | #endif |
1329 | ||
47b0e7ad NC |
1330 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, |
1331 | offset, relocation, addend); | |
5b93d8bb AM |
1332 | |
1333 | if (r != bfd_reloc_ok) | |
1334 | { | |
b34976b6 | 1335 | ret = FALSE; |
5b93d8bb AM |
1336 | switch (r) |
1337 | { | |
1338 | default: | |
1339 | break; | |
1340 | ||
1341 | case bfd_reloc_overflow: | |
1342 | { | |
1343 | const char *name; | |
1344 | ||
1345 | if (h != NULL) | |
dfeffb9f | 1346 | name = NULL; |
5b93d8bb AM |
1347 | else |
1348 | { | |
1349 | name = bfd_elf_string_from_elf_section (input_bfd, | |
1350 | symtab_hdr->sh_link, | |
1351 | sym->st_name); | |
1352 | if (name == NULL) | |
1353 | break; | |
1354 | ||
1355 | if (*name == '\0') | |
1356 | name = bfd_section_name (input_bfd, sec); | |
1357 | } | |
1358 | ||
6609fa74 | 1359 | (*info->callbacks->reloc_overflow) (info, |
dfeffb9f | 1360 | (h ? &h->root : NULL), |
6609fa74 KH |
1361 | name, |
1362 | howto->name, | |
1363 | (bfd_vma) 0, | |
1364 | input_bfd, | |
1365 | input_section, | |
1366 | offset); | |
5b93d8bb AM |
1367 | } |
1368 | break; | |
5b93d8bb AM |
1369 | } |
1370 | } | |
1371 | } | |
1372 | ||
5b93d8bb AM |
1373 | #ifdef DEBUG |
1374 | fprintf (stderr, "\n"); | |
1375 | #endif | |
1376 | ||
1377 | return ret; | |
1378 | } | |
5b93d8bb | 1379 | \f |
6d00b590 | 1380 | #define TARGET_BIG_SYM i370_elf32_vec |
5b93d8bb AM |
1381 | #define TARGET_BIG_NAME "elf32-i370" |
1382 | #define ELF_ARCH bfd_arch_i370 | |
1383 | #define ELF_MACHINE_CODE EM_S370 | |
1384 | #ifdef EM_I370_OLD | |
1385 | #define ELF_MACHINE_ALT1 EM_I370_OLD | |
1386 | #endif | |
1387 | #define ELF_MAXPAGESIZE 0x1000 | |
9c55345c | 1388 | #define ELF_OSABI ELFOSABI_GNU |
d1036acb | 1389 | |
5b93d8bb AM |
1390 | #define elf_info_to_howto i370_elf_info_to_howto |
1391 | ||
5b93d8bb | 1392 | #define elf_backend_plt_not_loaded 1 |
47b0e7ad | 1393 | #define elf_backend_rela_normal 1 |
5b93d8bb AM |
1394 | |
1395 | #define bfd_elf32_bfd_reloc_type_lookup i370_elf_reloc_type_lookup | |
157090f7 | 1396 | #define bfd_elf32_bfd_reloc_name_lookup i370_elf_reloc_name_lookup |
5b93d8bb | 1397 | #define bfd_elf32_bfd_set_private_flags i370_elf_set_private_flags |
5b93d8bb AM |
1398 | #define bfd_elf32_bfd_merge_private_bfd_data i370_elf_merge_private_bfd_data |
1399 | #define elf_backend_relocate_section i370_elf_relocate_section | |
1400 | ||
47b0e7ad NC |
1401 | /* Dynamic loader support is mostly broken; just enough here to be able to |
1402 | link glibc's ld.so without errors. */ | |
5b93d8bb AM |
1403 | #define elf_backend_create_dynamic_sections i370_elf_create_dynamic_sections |
1404 | #define elf_backend_size_dynamic_sections i370_elf_size_dynamic_sections | |
74541ad4 | 1405 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
5b93d8bb AM |
1406 | #define elf_backend_finish_dynamic_sections i370_elf_finish_dynamic_sections |
1407 | #define elf_backend_fake_sections i370_elf_fake_sections | |
1408 | #define elf_backend_section_from_shdr i370_elf_section_from_shdr | |
1409 | #define elf_backend_adjust_dynamic_symbol i370_elf_adjust_dynamic_symbol | |
1410 | #define elf_backend_check_relocs i370_elf_check_relocs | |
5b93d8bb | 1411 | |
47b0e7ad NC |
1412 | static int |
1413 | i370_noop (void) | |
5b93d8bb AM |
1414 | { |
1415 | return 1; | |
1416 | } | |
1417 | ||
5b93d8bb | 1418 | #define elf_backend_finish_dynamic_symbol \ |
b34976b6 | 1419 | (bfd_boolean (*) \ |
47b0e7ad NC |
1420 | (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, \ |
1421 | Elf_Internal_Sym *)) i370_noop | |
5b93d8bb AM |
1422 | |
1423 | #include "elf32-target.h" |