Commit | Line | Data |
---|---|---|
efcbd82c | 1 | /* MIPS-specific support for 32-bit ELF |
3f0a7f7f | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 |
be3ccd9c | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | Most of the information added by Ian Lance Taylor, Cygnus Support, | |
6 | <ian@cygnus.com>. | |
103186c6 MM |
7 | N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC. |
8 | <mark@codesourcery.com> | |
f7cb7d68 UC |
9 | Traditional MIPS targets support added by Koundinya.K, Dansk Data |
10 | Elektronik & Operations Research Group. <kk@ddeorg.soft.net> | |
252b5132 RH |
11 | |
12 | This file is part of BFD, the Binary File Descriptor library. | |
13 | ||
14 | This program is free software; you can redistribute it and/or modify | |
15 | it under the terms of the GNU General Public License as published by | |
16 | the Free Software Foundation; either version 2 of the License, or | |
17 | (at your option) any later version. | |
18 | ||
19 | This program is distributed in the hope that it will be useful, | |
20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | GNU General Public License for more details. | |
23 | ||
24 | You should have received a copy of the GNU General Public License | |
25 | along with this program; if not, write to the Free Software | |
26 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
27 | ||
28 | /* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly | |
29 | different MIPS ELF from other targets. This matters when linking. | |
30 | This file supports both, switching at runtime. */ | |
31 | ||
32 | #include "bfd.h" | |
33 | #include "sysdep.h" | |
34 | #include "libbfd.h" | |
35 | #include "bfdlink.h" | |
36 | #include "genlink.h" | |
37 | #include "elf-bfd.h" | |
c6e90b02 | 38 | #include "elfxx-mips.h" |
252b5132 RH |
39 | #include "elf/mips.h" |
40 | ||
41 | /* Get the ECOFF swapping routines. */ | |
42 | #include "coff/sym.h" | |
43 | #include "coff/symconst.h" | |
44 | #include "coff/internal.h" | |
45 | #include "coff/ecoff.h" | |
46 | #include "coff/mips.h" | |
23e2c83b | 47 | #define ECOFF_SIGNED_32 |
252b5132 RH |
48 | #include "ecoffswap.h" |
49 | ||
c6e90b02 TS |
50 | static bfd_reloc_status_type mips_elf_hi16_reloc |
51 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
52 | static bfd_reloc_status_type mips_elf_lo16_reloc | |
53 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
54 | static bfd_reloc_status_type mips_elf_got16_reloc | |
55 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
56 | static bfd_reloc_status_type mips_elf_gprel32_reloc | |
57 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
252b5132 RH |
58 | static bfd_reloc_status_type mips32_64bit_reloc |
59 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
60 | static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup | |
61 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
c6e90b02 TS |
62 | static reloc_howto_type *mips_elf32_rtype_to_howto |
63 | PARAMS ((unsigned int, boolean)); | |
252b5132 RH |
64 | static void mips_info_to_howto_rel |
65 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); | |
3f830999 MM |
66 | static void mips_info_to_howto_rela |
67 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); | |
252b5132 | 68 | static boolean mips_elf_sym_is_global PARAMS ((bfd *, asymbol *)); |
c6e90b02 | 69 | static boolean mips_elf32_object_p PARAMS ((bfd *)); |
252b5132 RH |
70 | static boolean mips_elf_is_local_label_name |
71 | PARAMS ((bfd *, const char *)); | |
252b5132 RH |
72 | static bfd_reloc_status_type mips16_jump_reloc |
73 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
74 | static bfd_reloc_status_type mips16_gprel_reloc | |
75 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
252b5132 RH |
76 | static bfd_reloc_status_type mips_elf_final_gp |
77 | PARAMS ((bfd *, asymbol *, boolean, char **, bfd_vma *)); | |
7403cb63 | 78 | static boolean mips_elf_assign_gp PARAMS ((bfd *, bfd_vma *)); |
c6e90b02 | 79 | static boolean elf32_mips_grok_prstatus |
9e80ff3a | 80 | PARAMS ((bfd *, Elf_Internal_Note *)); |
c6e90b02 | 81 | static boolean elf32_mips_grok_psinfo |
9e80ff3a | 82 | PARAMS ((bfd *, Elf_Internal_Note *)); |
c6e90b02 TS |
83 | static irix_compat_t elf32_mips_irix_compat |
84 | PARAMS ((bfd *)); | |
252b5132 | 85 | |
cb7394f2 TS |
86 | extern const bfd_target bfd_elf32_bigmips_vec; |
87 | extern const bfd_target bfd_elf32_littlemips_vec; | |
adb76a3e | 88 | |
a94a7c1c | 89 | /* Nonzero if ABFD is using the N32 ABI. */ |
a94a7c1c MM |
90 | #define ABI_N32_P(abfd) \ |
91 | ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0) | |
92 | ||
4e8a9624 | 93 | /* Whether we are trying to be compatible with IRIX at all. */ |
a94a7c1c | 94 | #define SGI_COMPAT(abfd) \ |
c6e90b02 | 95 | (elf32_mips_irix_compat (abfd) != ict_none) |
103186c6 | 96 | |
252b5132 RH |
97 | /* The number of local .got entries we reserve. */ |
98 | #define MIPS_RESERVED_GOTNO (2) | |
99 | ||
3f830999 MM |
100 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value |
101 | from smaller values. Start with zero, widen, *then* decrement. */ | |
102 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
103 | ||
d75bc93d TS |
104 | /* The relocation table used for SHT_REL sections. */ |
105 | ||
106 | static reloc_howto_type elf_mips_howto_table_rel[] = | |
107 | { | |
108 | /* No relocation. */ | |
109 | HOWTO (R_MIPS_NONE, /* type */ | |
110 | 0, /* rightshift */ | |
111 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
112 | 0, /* bitsize */ | |
113 | false, /* pc_relative */ | |
114 | 0, /* bitpos */ | |
115 | complain_overflow_dont, /* complain_on_overflow */ | |
116 | bfd_elf_generic_reloc, /* special_function */ | |
117 | "R_MIPS_NONE", /* name */ | |
118 | false, /* partial_inplace */ | |
119 | 0, /* src_mask */ | |
120 | 0, /* dst_mask */ | |
121 | false), /* pcrel_offset */ | |
122 | ||
123 | /* 16 bit relocation. */ | |
124 | HOWTO (R_MIPS_16, /* type */ | |
125 | 0, /* rightshift */ | |
126 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
127 | 16, /* bitsize */ | |
128 | false, /* pc_relative */ | |
129 | 0, /* bitpos */ | |
130 | complain_overflow_signed, /* complain_on_overflow */ | |
131 | bfd_elf_generic_reloc, /* special_function */ | |
132 | "R_MIPS_16", /* name */ | |
133 | true, /* partial_inplace */ | |
134 | 0x0000ffff, /* src_mask */ | |
135 | 0x0000ffff, /* dst_mask */ | |
136 | false), /* pcrel_offset */ | |
137 | ||
138 | /* 32 bit relocation. */ | |
139 | HOWTO (R_MIPS_32, /* type */ | |
140 | 0, /* rightshift */ | |
141 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
142 | 32, /* bitsize */ | |
143 | false, /* pc_relative */ | |
144 | 0, /* bitpos */ | |
145 | complain_overflow_dont, /* complain_on_overflow */ | |
146 | bfd_elf_generic_reloc, /* special_function */ | |
147 | "R_MIPS_32", /* name */ | |
148 | true, /* partial_inplace */ | |
149 | 0xffffffff, /* src_mask */ | |
150 | 0xffffffff, /* dst_mask */ | |
151 | false), /* pcrel_offset */ | |
152 | ||
153 | /* 32 bit symbol relative relocation. */ | |
154 | HOWTO (R_MIPS_REL32, /* type */ | |
155 | 0, /* rightshift */ | |
156 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
157 | 32, /* bitsize */ | |
158 | false, /* pc_relative */ | |
159 | 0, /* bitpos */ | |
160 | complain_overflow_dont, /* complain_on_overflow */ | |
161 | bfd_elf_generic_reloc, /* special_function */ | |
162 | "R_MIPS_REL32", /* name */ | |
163 | true, /* partial_inplace */ | |
164 | 0xffffffff, /* src_mask */ | |
165 | 0xffffffff, /* dst_mask */ | |
166 | false), /* pcrel_offset */ | |
167 | ||
168 | /* 26 bit jump address. */ | |
169 | HOWTO (R_MIPS_26, /* type */ | |
170 | 2, /* rightshift */ | |
171 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
172 | 26, /* bitsize */ | |
173 | false, /* pc_relative */ | |
174 | 0, /* bitpos */ | |
175 | complain_overflow_dont, /* complain_on_overflow */ | |
176 | /* This needs complex overflow | |
177 | detection, because the upper four | |
178 | bits must match the PC + 4. */ | |
179 | bfd_elf_generic_reloc, /* special_function */ | |
180 | "R_MIPS_26", /* name */ | |
181 | true, /* partial_inplace */ | |
182 | 0x03ffffff, /* src_mask */ | |
183 | 0x03ffffff, /* dst_mask */ | |
184 | false), /* pcrel_offset */ | |
185 | ||
186 | /* High 16 bits of symbol value. */ | |
187 | HOWTO (R_MIPS_HI16, /* type */ | |
188 | 0, /* rightshift */ | |
189 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
190 | 16, /* bitsize */ | |
191 | false, /* pc_relative */ | |
192 | 0, /* bitpos */ | |
193 | complain_overflow_dont, /* complain_on_overflow */ | |
c6e90b02 | 194 | mips_elf_hi16_reloc, /* special_function */ |
d75bc93d TS |
195 | "R_MIPS_HI16", /* name */ |
196 | true, /* partial_inplace */ | |
197 | 0x0000ffff, /* src_mask */ | |
198 | 0x0000ffff, /* dst_mask */ | |
199 | false), /* pcrel_offset */ | |
200 | ||
201 | /* Low 16 bits of symbol value. */ | |
202 | HOWTO (R_MIPS_LO16, /* type */ | |
203 | 0, /* rightshift */ | |
204 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
205 | 16, /* bitsize */ | |
206 | false, /* pc_relative */ | |
207 | 0, /* bitpos */ | |
208 | complain_overflow_dont, /* complain_on_overflow */ | |
c6e90b02 | 209 | mips_elf_lo16_reloc, /* special_function */ |
d75bc93d TS |
210 | "R_MIPS_LO16", /* name */ |
211 | true, /* partial_inplace */ | |
212 | 0x0000ffff, /* src_mask */ | |
213 | 0x0000ffff, /* dst_mask */ | |
214 | false), /* pcrel_offset */ | |
215 | ||
216 | /* GP relative reference. */ | |
217 | HOWTO (R_MIPS_GPREL16, /* type */ | |
218 | 0, /* rightshift */ | |
219 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
220 | 16, /* bitsize */ | |
221 | false, /* pc_relative */ | |
222 | 0, /* bitpos */ | |
223 | complain_overflow_signed, /* complain_on_overflow */ | |
c6e90b02 | 224 | _bfd_mips_elf32_gprel16_reloc, /* special_function */ |
d75bc93d TS |
225 | "R_MIPS_GPREL16", /* name */ |
226 | true, /* partial_inplace */ | |
227 | 0x0000ffff, /* src_mask */ | |
228 | 0x0000ffff, /* dst_mask */ | |
229 | false), /* pcrel_offset */ | |
230 | ||
231 | /* Reference to literal section. */ | |
232 | HOWTO (R_MIPS_LITERAL, /* type */ | |
233 | 0, /* rightshift */ | |
234 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
235 | 16, /* bitsize */ | |
236 | false, /* pc_relative */ | |
237 | 0, /* bitpos */ | |
238 | complain_overflow_signed, /* complain_on_overflow */ | |
c6e90b02 | 239 | _bfd_mips_elf32_gprel16_reloc, /* special_function */ |
d75bc93d TS |
240 | "R_MIPS_LITERAL", /* name */ |
241 | true, /* partial_inplace */ | |
242 | 0x0000ffff, /* src_mask */ | |
243 | 0x0000ffff, /* dst_mask */ | |
244 | false), /* pcrel_offset */ | |
245 | ||
246 | /* Reference to global offset table. */ | |
247 | HOWTO (R_MIPS_GOT16, /* type */ | |
248 | 0, /* rightshift */ | |
249 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
250 | 16, /* bitsize */ | |
251 | false, /* pc_relative */ | |
252 | 0, /* bitpos */ | |
253 | complain_overflow_signed, /* complain_on_overflow */ | |
c6e90b02 | 254 | mips_elf_got16_reloc, /* special_function */ |
d75bc93d TS |
255 | "R_MIPS_GOT16", /* name */ |
256 | true, /* partial_inplace */ | |
257 | 0x0000ffff, /* src_mask */ | |
258 | 0x0000ffff, /* dst_mask */ | |
259 | false), /* pcrel_offset */ | |
260 | ||
261 | /* 16 bit PC relative reference. */ | |
262 | HOWTO (R_MIPS_PC16, /* type */ | |
263 | 0, /* rightshift */ | |
264 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
265 | 16, /* bitsize */ | |
266 | true, /* pc_relative */ | |
267 | 0, /* bitpos */ | |
268 | complain_overflow_signed, /* complain_on_overflow */ | |
269 | bfd_elf_generic_reloc, /* special_function */ | |
270 | "R_MIPS_PC16", /* name */ | |
271 | true, /* partial_inplace */ | |
272 | 0x0000ffff, /* src_mask */ | |
273 | 0x0000ffff, /* dst_mask */ | |
274 | true), /* pcrel_offset */ | |
275 | ||
276 | /* 16 bit call through global offset table. */ | |
277 | HOWTO (R_MIPS_CALL16, /* type */ | |
278 | 0, /* rightshift */ | |
279 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
280 | 16, /* bitsize */ | |
281 | false, /* pc_relative */ | |
282 | 0, /* bitpos */ | |
283 | complain_overflow_signed, /* complain_on_overflow */ | |
284 | bfd_elf_generic_reloc, /* special_function */ | |
285 | "R_MIPS_CALL16", /* name */ | |
286 | true, /* partial_inplace */ | |
287 | 0x0000ffff, /* src_mask */ | |
288 | 0x0000ffff, /* dst_mask */ | |
289 | false), /* pcrel_offset */ | |
290 | ||
291 | /* 32 bit GP relative reference. */ | |
292 | HOWTO (R_MIPS_GPREL32, /* type */ | |
293 | 0, /* rightshift */ | |
294 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
295 | 32, /* bitsize */ | |
296 | false, /* pc_relative */ | |
297 | 0, /* bitpos */ | |
298 | complain_overflow_dont, /* complain_on_overflow */ | |
c6e90b02 | 299 | mips_elf_gprel32_reloc, /* special_function */ |
d75bc93d TS |
300 | "R_MIPS_GPREL32", /* name */ |
301 | true, /* partial_inplace */ | |
302 | 0xffffffff, /* src_mask */ | |
303 | 0xffffffff, /* dst_mask */ | |
304 | false), /* pcrel_offset */ | |
305 | ||
306 | /* The remaining relocs are defined on Irix 5, although they are | |
307 | not defined by the ABI. */ | |
308 | EMPTY_HOWTO (13), | |
309 | EMPTY_HOWTO (14), | |
310 | EMPTY_HOWTO (15), | |
311 | ||
312 | /* A 5 bit shift field. */ | |
313 | HOWTO (R_MIPS_SHIFT5, /* type */ | |
314 | 0, /* rightshift */ | |
315 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
316 | 5, /* bitsize */ | |
317 | false, /* pc_relative */ | |
318 | 6, /* bitpos */ | |
319 | complain_overflow_bitfield, /* complain_on_overflow */ | |
320 | bfd_elf_generic_reloc, /* special_function */ | |
321 | "R_MIPS_SHIFT5", /* name */ | |
322 | true, /* partial_inplace */ | |
323 | 0x000007c0, /* src_mask */ | |
324 | 0x000007c0, /* dst_mask */ | |
325 | false), /* pcrel_offset */ | |
326 | ||
327 | /* A 6 bit shift field. */ | |
328 | /* FIXME: This is not handled correctly; a special function is | |
329 | needed to put the most significant bit in the right place. */ | |
330 | HOWTO (R_MIPS_SHIFT6, /* type */ | |
331 | 0, /* rightshift */ | |
332 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
333 | 6, /* bitsize */ | |
334 | false, /* pc_relative */ | |
335 | 6, /* bitpos */ | |
336 | complain_overflow_bitfield, /* complain_on_overflow */ | |
337 | bfd_elf_generic_reloc, /* special_function */ | |
338 | "R_MIPS_SHIFT6", /* name */ | |
339 | true, /* partial_inplace */ | |
340 | 0x000007c4, /* src_mask */ | |
341 | 0x000007c4, /* dst_mask */ | |
342 | false), /* pcrel_offset */ | |
343 | ||
344 | /* A 64 bit relocation. */ | |
345 | HOWTO (R_MIPS_64, /* type */ | |
346 | 0, /* rightshift */ | |
347 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
348 | 64, /* bitsize */ | |
349 | false, /* pc_relative */ | |
350 | 0, /* bitpos */ | |
351 | complain_overflow_dont, /* complain_on_overflow */ | |
352 | mips32_64bit_reloc, /* special_function */ | |
353 | "R_MIPS_64", /* name */ | |
354 | true, /* partial_inplace */ | |
355 | MINUS_ONE, /* src_mask */ | |
356 | MINUS_ONE, /* dst_mask */ | |
357 | false), /* pcrel_offset */ | |
358 | ||
359 | /* Displacement in the global offset table. */ | |
360 | HOWTO (R_MIPS_GOT_DISP, /* type */ | |
361 | 0, /* rightshift */ | |
362 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
363 | 16, /* bitsize */ | |
364 | false, /* pc_relative */ | |
365 | 0, /* bitpos */ | |
366 | complain_overflow_signed, /* complain_on_overflow */ | |
367 | bfd_elf_generic_reloc, /* special_function */ | |
368 | "R_MIPS_GOT_DISP", /* name */ | |
369 | true, /* partial_inplace */ | |
370 | 0x0000ffff, /* src_mask */ | |
371 | 0x0000ffff, /* dst_mask */ | |
372 | false), /* pcrel_offset */ | |
373 | ||
374 | /* Displacement to page pointer in the global offset table. */ | |
375 | HOWTO (R_MIPS_GOT_PAGE, /* type */ | |
376 | 0, /* rightshift */ | |
377 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
378 | 16, /* bitsize */ | |
379 | false, /* pc_relative */ | |
380 | 0, /* bitpos */ | |
381 | complain_overflow_signed, /* complain_on_overflow */ | |
382 | bfd_elf_generic_reloc, /* special_function */ | |
383 | "R_MIPS_GOT_PAGE", /* name */ | |
384 | true, /* partial_inplace */ | |
385 | 0x0000ffff, /* src_mask */ | |
386 | 0x0000ffff, /* dst_mask */ | |
387 | false), /* pcrel_offset */ | |
388 | ||
389 | /* Offset from page pointer in the global offset table. */ | |
390 | HOWTO (R_MIPS_GOT_OFST, /* type */ | |
391 | 0, /* rightshift */ | |
392 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
393 | 16, /* bitsize */ | |
394 | false, /* pc_relative */ | |
395 | 0, /* bitpos */ | |
396 | complain_overflow_signed, /* complain_on_overflow */ | |
397 | bfd_elf_generic_reloc, /* special_function */ | |
398 | "R_MIPS_GOT_OFST", /* name */ | |
399 | true, /* partial_inplace */ | |
400 | 0x0000ffff, /* src_mask */ | |
401 | 0x0000ffff, /* dst_mask */ | |
402 | false), /* pcrel_offset */ | |
403 | ||
404 | /* High 16 bits of displacement in global offset table. */ | |
405 | HOWTO (R_MIPS_GOT_HI16, /* type */ | |
406 | 0, /* rightshift */ | |
407 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
408 | 16, /* bitsize */ | |
409 | false, /* pc_relative */ | |
410 | 0, /* bitpos */ | |
411 | complain_overflow_dont, /* complain_on_overflow */ | |
412 | bfd_elf_generic_reloc, /* special_function */ | |
413 | "R_MIPS_GOT_HI16", /* name */ | |
414 | true, /* partial_inplace */ | |
415 | 0x0000ffff, /* src_mask */ | |
416 | 0x0000ffff, /* dst_mask */ | |
417 | false), /* pcrel_offset */ | |
418 | ||
419 | /* Low 16 bits of displacement in global offset table. */ | |
420 | HOWTO (R_MIPS_GOT_LO16, /* type */ | |
421 | 0, /* rightshift */ | |
422 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
423 | 16, /* bitsize */ | |
424 | false, /* pc_relative */ | |
425 | 0, /* bitpos */ | |
426 | complain_overflow_dont, /* complain_on_overflow */ | |
427 | bfd_elf_generic_reloc, /* special_function */ | |
428 | "R_MIPS_GOT_LO16", /* name */ | |
429 | true, /* partial_inplace */ | |
430 | 0x0000ffff, /* src_mask */ | |
431 | 0x0000ffff, /* dst_mask */ | |
432 | false), /* pcrel_offset */ | |
433 | ||
434 | /* 64 bit subtraction. Used in the N32 ABI. */ | |
435 | HOWTO (R_MIPS_SUB, /* type */ | |
436 | 0, /* rightshift */ | |
437 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
438 | 64, /* bitsize */ | |
439 | false, /* pc_relative */ | |
440 | 0, /* bitpos */ | |
441 | complain_overflow_dont, /* complain_on_overflow */ | |
442 | bfd_elf_generic_reloc, /* special_function */ | |
443 | "R_MIPS_SUB", /* name */ | |
444 | true, /* partial_inplace */ | |
445 | MINUS_ONE, /* src_mask */ | |
446 | MINUS_ONE, /* dst_mask */ | |
447 | false), /* pcrel_offset */ | |
448 | ||
449 | /* Used to cause the linker to insert and delete instructions? */ | |
450 | EMPTY_HOWTO (R_MIPS_INSERT_A), | |
451 | EMPTY_HOWTO (R_MIPS_INSERT_B), | |
452 | EMPTY_HOWTO (R_MIPS_DELETE), | |
453 | ||
454 | /* Get the higher value of a 64 bit addend. */ | |
455 | HOWTO (R_MIPS_HIGHER, /* type */ | |
456 | 0, /* rightshift */ | |
457 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
458 | 16, /* bitsize */ | |
459 | false, /* pc_relative */ | |
460 | 0, /* bitpos */ | |
461 | complain_overflow_dont, /* complain_on_overflow */ | |
462 | bfd_elf_generic_reloc, /* special_function */ | |
463 | "R_MIPS_HIGHER", /* name */ | |
464 | true, /* partial_inplace */ | |
465 | 0x0000ffff, /* src_mask */ | |
466 | 0x0000ffff, /* dst_mask */ | |
467 | false), /* pcrel_offset */ | |
468 | ||
469 | /* Get the highest value of a 64 bit addend. */ | |
470 | HOWTO (R_MIPS_HIGHEST, /* type */ | |
471 | 0, /* rightshift */ | |
472 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
473 | 16, /* bitsize */ | |
474 | false, /* pc_relative */ | |
475 | 0, /* bitpos */ | |
476 | complain_overflow_dont, /* complain_on_overflow */ | |
477 | bfd_elf_generic_reloc, /* special_function */ | |
478 | "R_MIPS_HIGHEST", /* name */ | |
479 | true, /* partial_inplace */ | |
480 | 0x0000ffff, /* src_mask */ | |
481 | 0x0000ffff, /* dst_mask */ | |
482 | false), /* pcrel_offset */ | |
483 | ||
484 | /* High 16 bits of displacement in global offset table. */ | |
485 | HOWTO (R_MIPS_CALL_HI16, /* type */ | |
486 | 0, /* rightshift */ | |
487 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
488 | 16, /* bitsize */ | |
489 | false, /* pc_relative */ | |
490 | 0, /* bitpos */ | |
491 | complain_overflow_dont, /* complain_on_overflow */ | |
492 | bfd_elf_generic_reloc, /* special_function */ | |
493 | "R_MIPS_CALL_HI16", /* name */ | |
494 | true, /* partial_inplace */ | |
495 | 0x0000ffff, /* src_mask */ | |
496 | 0x0000ffff, /* dst_mask */ | |
497 | false), /* pcrel_offset */ | |
498 | ||
499 | /* Low 16 bits of displacement in global offset table. */ | |
500 | HOWTO (R_MIPS_CALL_LO16, /* type */ | |
501 | 0, /* rightshift */ | |
502 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
503 | 16, /* bitsize */ | |
504 | false, /* pc_relative */ | |
505 | 0, /* bitpos */ | |
506 | complain_overflow_dont, /* complain_on_overflow */ | |
507 | bfd_elf_generic_reloc, /* special_function */ | |
508 | "R_MIPS_CALL_LO16", /* name */ | |
509 | true, /* partial_inplace */ | |
510 | 0x0000ffff, /* src_mask */ | |
511 | 0x0000ffff, /* dst_mask */ | |
512 | false), /* pcrel_offset */ | |
513 | ||
514 | /* Section displacement. */ | |
515 | HOWTO (R_MIPS_SCN_DISP, /* type */ | |
516 | 0, /* rightshift */ | |
517 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
518 | 32, /* bitsize */ | |
519 | false, /* pc_relative */ | |
520 | 0, /* bitpos */ | |
521 | complain_overflow_dont, /* complain_on_overflow */ | |
522 | bfd_elf_generic_reloc, /* special_function */ | |
523 | "R_MIPS_SCN_DISP", /* name */ | |
524 | true, /* partial_inplace */ | |
525 | 0xffffffff, /* src_mask */ | |
526 | 0xffffffff, /* dst_mask */ | |
527 | false), /* pcrel_offset */ | |
528 | ||
529 | EMPTY_HOWTO (R_MIPS_REL16), | |
530 | EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE), | |
531 | EMPTY_HOWTO (R_MIPS_PJUMP), | |
532 | EMPTY_HOWTO (R_MIPS_RELGOT), | |
533 | ||
534 | /* Protected jump conversion. This is an optimization hint. No | |
535 | relocation is required for correctness. */ | |
536 | HOWTO (R_MIPS_JALR, /* type */ | |
537 | 0, /* rightshift */ | |
538 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
539 | 32, /* bitsize */ | |
540 | false, /* pc_relative */ | |
541 | 0, /* bitpos */ | |
542 | complain_overflow_dont, /* complain_on_overflow */ | |
543 | bfd_elf_generic_reloc, /* special_function */ | |
544 | "R_MIPS_JALR", /* name */ | |
545 | false, /* partial_inplace */ | |
546 | 0x00000000, /* src_mask */ | |
547 | 0x00000000, /* dst_mask */ | |
548 | false), /* pcrel_offset */ | |
549 | }; | |
550 | ||
c6e90b02 TS |
551 | /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This |
552 | is a hack to make the linker think that we need 64 bit values. */ | |
553 | static reloc_howto_type elf_mips_ctor64_howto = | |
554 | HOWTO (R_MIPS_64, /* type */ | |
252b5132 | 555 | 0, /* rightshift */ |
c6e90b02 | 556 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
252b5132 RH |
557 | 32, /* bitsize */ |
558 | false, /* pc_relative */ | |
559 | 0, /* bitpos */ | |
c6e90b02 TS |
560 | complain_overflow_signed, /* complain_on_overflow */ |
561 | mips32_64bit_reloc, /* special_function */ | |
562 | "R_MIPS_64", /* name */ | |
563 | true, /* partial_inplace */ | |
564 | 0xffffffff, /* src_mask */ | |
252b5132 | 565 | 0xffffffff, /* dst_mask */ |
c6e90b02 | 566 | false); /* pcrel_offset */ |
252b5132 | 567 | |
c6e90b02 TS |
568 | /* The reloc used for the mips16 jump instruction. */ |
569 | static reloc_howto_type elf_mips16_jump_howto = | |
570 | HOWTO (R_MIPS16_26, /* type */ | |
252b5132 RH |
571 | 2, /* rightshift */ |
572 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
573 | 26, /* bitsize */ | |
574 | false, /* pc_relative */ | |
575 | 0, /* bitpos */ | |
576 | complain_overflow_dont, /* complain_on_overflow */ | |
c6e90b02 TS |
577 | /* This needs complex overflow |
578 | detection, because the upper four | |
579 | bits must match the PC. */ | |
580 | mips16_jump_reloc, /* special_function */ | |
581 | "R_MIPS16_26", /* name */ | |
582 | true, /* partial_inplace */ | |
583 | 0x3ffffff, /* src_mask */ | |
584 | 0x3ffffff, /* dst_mask */ | |
585 | false); /* pcrel_offset */ | |
252b5132 | 586 | |
c6e90b02 TS |
587 | /* The reloc used for the mips16 gprel instruction. */ |
588 | static reloc_howto_type elf_mips16_gprel_howto = | |
589 | HOWTO (R_MIPS16_GPREL, /* type */ | |
252b5132 RH |
590 | 0, /* rightshift */ |
591 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
592 | 16, /* bitsize */ | |
593 | false, /* pc_relative */ | |
594 | 0, /* bitpos */ | |
c6e90b02 TS |
595 | complain_overflow_signed, /* complain_on_overflow */ |
596 | mips16_gprel_reloc, /* special_function */ | |
597 | "R_MIPS16_GPREL", /* name */ | |
598 | true, /* partial_inplace */ | |
599 | 0x07ff001f, /* src_mask */ | |
600 | 0x07ff001f, /* dst_mask */ | |
601 | false); /* pcrel_offset */ | |
252b5132 | 602 | |
c6e90b02 TS |
603 | /* GNU extensions for embedded-pic. */ |
604 | /* High 16 bits of symbol value, pc-relative. */ | |
605 | static reloc_howto_type elf_mips_gnu_rel_hi16 = | |
606 | HOWTO (R_MIPS_GNU_REL_HI16, /* type */ | |
252b5132 RH |
607 | 0, /* rightshift */ |
608 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
609 | 16, /* bitsize */ | |
c6e90b02 | 610 | true, /* pc_relative */ |
252b5132 RH |
611 | 0, /* bitpos */ |
612 | complain_overflow_dont, /* complain_on_overflow */ | |
c6e90b02 TS |
613 | mips_elf_hi16_reloc, /* special_function */ |
614 | "R_MIPS_GNU_REL_HI16", /* name */ | |
615 | true, /* partial_inplace */ | |
616 | 0xffff, /* src_mask */ | |
617 | 0xffff, /* dst_mask */ | |
618 | true); /* pcrel_offset */ | |
252b5132 | 619 | |
c6e90b02 TS |
620 | /* Low 16 bits of symbol value, pc-relative. */ |
621 | static reloc_howto_type elf_mips_gnu_rel_lo16 = | |
622 | HOWTO (R_MIPS_GNU_REL_LO16, /* type */ | |
252b5132 RH |
623 | 0, /* rightshift */ |
624 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
625 | 16, /* bitsize */ | |
c6e90b02 | 626 | true, /* pc_relative */ |
252b5132 | 627 | 0, /* bitpos */ |
c6e90b02 TS |
628 | complain_overflow_dont, /* complain_on_overflow */ |
629 | mips_elf_lo16_reloc, /* special_function */ | |
630 | "R_MIPS_GNU_REL_LO16", /* name */ | |
631 | true, /* partial_inplace */ | |
632 | 0xffff, /* src_mask */ | |
633 | 0xffff, /* dst_mask */ | |
634 | true); /* pcrel_offset */ | |
252b5132 | 635 | |
c6e90b02 TS |
636 | /* 16 bit offset for pc-relative branches. */ |
637 | static reloc_howto_type elf_mips_gnu_rel16_s2 = | |
638 | HOWTO (R_MIPS_GNU_REL16_S2, /* type */ | |
639 | 2, /* rightshift */ | |
252b5132 RH |
640 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
641 | 16, /* bitsize */ | |
c6e90b02 | 642 | true, /* pc_relative */ |
252b5132 RH |
643 | 0, /* bitpos */ |
644 | complain_overflow_signed, /* complain_on_overflow */ | |
c6e90b02 TS |
645 | bfd_elf_generic_reloc, /* special_function */ |
646 | "R_MIPS_GNU_REL16_S2", /* name */ | |
647 | true, /* partial_inplace */ | |
648 | 0xffff, /* src_mask */ | |
649 | 0xffff, /* dst_mask */ | |
650 | true); /* pcrel_offset */ | |
252b5132 | 651 | |
c6e90b02 TS |
652 | /* 64 bit pc-relative. */ |
653 | static reloc_howto_type elf_mips_gnu_pcrel64 = | |
654 | HOWTO (R_MIPS_PC64, /* type */ | |
252b5132 | 655 | 0, /* rightshift */ |
c6e90b02 TS |
656 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
657 | 64, /* bitsize */ | |
658 | true, /* pc_relative */ | |
252b5132 RH |
659 | 0, /* bitpos */ |
660 | complain_overflow_signed, /* complain_on_overflow */ | |
c6e90b02 TS |
661 | bfd_elf_generic_reloc, /* special_function */ |
662 | "R_MIPS_PC64", /* name */ | |
663 | true, /* partial_inplace */ | |
664 | MINUS_ONE, /* src_mask */ | |
665 | MINUS_ONE, /* dst_mask */ | |
666 | true); /* pcrel_offset */ | |
252b5132 | 667 | |
c6e90b02 TS |
668 | /* 32 bit pc-relative. */ |
669 | static reloc_howto_type elf_mips_gnu_pcrel32 = | |
670 | HOWTO (R_MIPS_PC32, /* type */ | |
252b5132 RH |
671 | 0, /* rightshift */ |
672 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c6e90b02 | 673 | 32, /* bitsize */ |
252b5132 RH |
674 | true, /* pc_relative */ |
675 | 0, /* bitpos */ | |
676 | complain_overflow_signed, /* complain_on_overflow */ | |
677 | bfd_elf_generic_reloc, /* special_function */ | |
c6e90b02 TS |
678 | "R_MIPS_PC32", /* name */ |
679 | true, /* partial_inplace */ | |
680 | 0xffffffff, /* src_mask */ | |
681 | 0xffffffff, /* dst_mask */ | |
682 | true); /* pcrel_offset */ | |
252b5132 | 683 | |
c6e90b02 TS |
684 | /* GNU extension to record C++ vtable hierarchy */ |
685 | static reloc_howto_type elf_mips_gnu_vtinherit_howto = | |
686 | HOWTO (R_MIPS_GNU_VTINHERIT, /* type */ | |
252b5132 RH |
687 | 0, /* rightshift */ |
688 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c6e90b02 | 689 | 0, /* bitsize */ |
252b5132 RH |
690 | false, /* pc_relative */ |
691 | 0, /* bitpos */ | |
c6e90b02 TS |
692 | complain_overflow_dont, /* complain_on_overflow */ |
693 | NULL, /* special_function */ | |
694 | "R_MIPS_GNU_VTINHERIT", /* name */ | |
252b5132 | 695 | false, /* partial_inplace */ |
d75bc93d | 696 | 0, /* src_mask */ |
c6e90b02 TS |
697 | 0, /* dst_mask */ |
698 | false); /* pcrel_offset */ | |
252b5132 | 699 | |
c6e90b02 TS |
700 | /* GNU extension to record C++ vtable member usage */ |
701 | static reloc_howto_type elf_mips_gnu_vtentry_howto = | |
702 | HOWTO (R_MIPS_GNU_VTENTRY, /* type */ | |
252b5132 RH |
703 | 0, /* rightshift */ |
704 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c6e90b02 | 705 | 0, /* bitsize */ |
252b5132 RH |
706 | false, /* pc_relative */ |
707 | 0, /* bitpos */ | |
708 | complain_overflow_dont, /* complain_on_overflow */ | |
c6e90b02 TS |
709 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ |
710 | "R_MIPS_GNU_VTENTRY", /* name */ | |
d75bc93d TS |
711 | false, /* partial_inplace */ |
712 | 0, /* src_mask */ | |
c6e90b02 TS |
713 | 0, /* dst_mask */ |
714 | false); /* pcrel_offset */ | |
252b5132 RH |
715 | |
716 | /* Do a R_MIPS_HI16 relocation. This has to be done in combination | |
c6e90b02 TS |
717 | with a R_MIPS_LO16 reloc, because there is a carry from the LO16 to |
718 | the HI16. Here we just save the information we need; we do the | |
719 | actual relocation when we see the LO16. | |
c6142e5d | 720 | |
c6e90b02 TS |
721 | MIPS ELF requires that the LO16 immediately follow the HI16. As a |
722 | GNU extension, for non-pc-relative relocations, we permit an | |
723 | arbitrary number of HI16 relocs to be associated with a single LO16 | |
724 | reloc. This extension permits gcc to output the HI and LO relocs | |
725 | itself. | |
c6142e5d | 726 | |
c6e90b02 TS |
727 | This cannot be done for PC-relative relocations because both the HI16 |
728 | and LO16 parts of the relocations must be done relative to the LO16 | |
729 | part, and there can be carry to or borrow from the HI16 part. */ | |
103186c6 | 730 | |
c6e90b02 | 731 | struct mips_hi16 |
103186c6 | 732 | { |
c6e90b02 TS |
733 | struct mips_hi16 *next; |
734 | bfd_byte *addr; | |
735 | bfd_vma addend; | |
736 | }; | |
be3ccd9c | 737 | |
c6e90b02 | 738 | /* FIXME: This should not be a static variable. */ |
103186c6 | 739 | |
c6e90b02 | 740 | static struct mips_hi16 *mips_hi16_list; |
252b5132 | 741 | |
c6e90b02 TS |
742 | static bfd_reloc_status_type |
743 | mips_elf_hi16_reloc (abfd, reloc_entry, symbol, data, input_section, | |
744 | output_bfd, error_message) | |
745 | bfd *abfd ATTRIBUTE_UNUSED; | |
746 | arelent *reloc_entry; | |
747 | asymbol *symbol; | |
748 | PTR data; | |
749 | asection *input_section; | |
750 | bfd *output_bfd; | |
751 | char **error_message; | |
252b5132 | 752 | { |
c6e90b02 TS |
753 | bfd_reloc_status_type ret; |
754 | bfd_vma relocation; | |
755 | struct mips_hi16 *n; | |
252b5132 | 756 | |
cb7394f2 | 757 | /* If we're relocating, and this is an external symbol, we don't want |
c6e90b02 TS |
758 | to change anything. */ |
759 | if (output_bfd != (bfd *) NULL | |
760 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
761 | && reloc_entry->addend == 0) | |
252b5132 | 762 | { |
c6e90b02 TS |
763 | reloc_entry->address += input_section->output_offset; |
764 | return bfd_reloc_ok; | |
252b5132 | 765 | } |
252b5132 | 766 | |
c6e90b02 | 767 | ret = bfd_reloc_ok; |
252b5132 | 768 | |
c6e90b02 TS |
769 | if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) |
770 | { | |
771 | boolean relocateable; | |
772 | bfd_vma gp; | |
252b5132 | 773 | |
c6e90b02 TS |
774 | if (ret == bfd_reloc_undefined) |
775 | abort (); | |
252b5132 | 776 | |
c6e90b02 TS |
777 | if (output_bfd != NULL) |
778 | relocateable = true; | |
252b5132 | 779 | else |
252b5132 | 780 | { |
c6e90b02 TS |
781 | relocateable = false; |
782 | output_bfd = symbol->section->output_section->owner; | |
252b5132 RH |
783 | } |
784 | ||
c6e90b02 TS |
785 | ret = mips_elf_final_gp (output_bfd, symbol, relocateable, |
786 | error_message, &gp); | |
787 | if (ret != bfd_reloc_ok) | |
788 | return ret; | |
252b5132 | 789 | |
c6e90b02 | 790 | relocation = gp - reloc_entry->address; |
252b5132 RH |
791 | } |
792 | else | |
793 | { | |
c6e90b02 TS |
794 | if (bfd_is_und_section (symbol->section) |
795 | && output_bfd == (bfd *) NULL) | |
796 | ret = bfd_reloc_undefined; | |
252b5132 | 797 | |
c6e90b02 TS |
798 | if (bfd_is_com_section (symbol->section)) |
799 | relocation = 0; | |
252b5132 | 800 | else |
c6e90b02 TS |
801 | relocation = symbol->value; |
802 | } | |
252b5132 | 803 | |
c6e90b02 TS |
804 | relocation += symbol->section->output_section->vma; |
805 | relocation += symbol->section->output_offset; | |
806 | relocation += reloc_entry->addend; | |
9117d219 | 807 | |
c6e90b02 TS |
808 | if (reloc_entry->address > input_section->_cooked_size) |
809 | return bfd_reloc_outofrange; | |
9117d219 | 810 | |
c6e90b02 TS |
811 | /* Save the information, and let LO16 do the actual relocation. */ |
812 | n = (struct mips_hi16 *) bfd_malloc ((bfd_size_type) sizeof *n); | |
813 | if (n == NULL) | |
814 | return bfd_reloc_outofrange; | |
815 | n->addr = (bfd_byte *) data + reloc_entry->address; | |
816 | n->addend = relocation; | |
817 | n->next = mips_hi16_list; | |
818 | mips_hi16_list = n; | |
252b5132 | 819 | |
c6e90b02 TS |
820 | if (output_bfd != (bfd *) NULL) |
821 | reloc_entry->address += input_section->output_offset; | |
252b5132 | 822 | |
c6e90b02 | 823 | return ret; |
252b5132 RH |
824 | } |
825 | ||
c6e90b02 TS |
826 | /* Do a R_MIPS_LO16 relocation. This is a straightforward 16 bit |
827 | inplace relocation; this function exists in order to do the | |
828 | R_MIPS_HI16 relocation described above. */ | |
252b5132 | 829 | |
c6e90b02 TS |
830 | static bfd_reloc_status_type |
831 | mips_elf_lo16_reloc (abfd, reloc_entry, symbol, data, input_section, | |
832 | output_bfd, error_message) | |
252b5132 | 833 | bfd *abfd; |
c6e90b02 TS |
834 | arelent *reloc_entry; |
835 | asymbol *symbol; | |
836 | PTR data; | |
837 | asection *input_section; | |
838 | bfd *output_bfd; | |
839 | char **error_message; | |
252b5132 | 840 | { |
c6e90b02 | 841 | arelent gp_disp_relent; |
252b5132 | 842 | |
c6e90b02 | 843 | if (mips_hi16_list != NULL) |
252b5132 | 844 | { |
c6e90b02 | 845 | struct mips_hi16 *l; |
252b5132 | 846 | |
c6e90b02 TS |
847 | l = mips_hi16_list; |
848 | while (l != NULL) | |
849 | { | |
850 | unsigned long insn; | |
851 | unsigned long val; | |
852 | unsigned long vallo; | |
853 | struct mips_hi16 *next; | |
252b5132 | 854 | |
c6e90b02 TS |
855 | /* Do the HI16 relocation. Note that we actually don't need |
856 | to know anything about the LO16 itself, except where to | |
857 | find the low 16 bits of the addend needed by the LO16. */ | |
858 | insn = bfd_get_32 (abfd, l->addr); | |
859 | vallo = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
252b5132 | 860 | |
c6e90b02 TS |
861 | /* The low order 16 bits are always treated as a signed |
862 | value. */ | |
863 | vallo = ((vallo & 0xffff) ^ 0x8000) - 0x8000; | |
864 | val = ((insn & 0xffff) << 16) + vallo; | |
865 | val += l->addend; | |
252b5132 | 866 | |
c6e90b02 TS |
867 | /* If PC-relative, we need to subtract out the address of the LO |
868 | half of the HI/LO. (The actual relocation is relative | |
869 | to that instruction.) */ | |
870 | if (reloc_entry->howto->pc_relative) | |
871 | val -= reloc_entry->address; | |
252b5132 | 872 | |
c6e90b02 TS |
873 | /* At this point, "val" has the value of the combined HI/LO |
874 | pair. If the low order 16 bits (which will be used for | |
875 | the LO16 insn) are negative, then we will need an | |
876 | adjustment for the high order 16 bits. */ | |
877 | val += 0x8000; | |
878 | val = (val >> 16) & 0xffff; | |
252b5132 | 879 | |
c6e90b02 TS |
880 | insn &= ~ (bfd_vma) 0xffff; |
881 | insn |= val; | |
882 | bfd_put_32 (abfd, (bfd_vma) insn, l->addr); | |
8a20f077 | 883 | |
c6e90b02 TS |
884 | if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) |
885 | { | |
886 | gp_disp_relent = *reloc_entry; | |
887 | reloc_entry = &gp_disp_relent; | |
888 | reloc_entry->addend = l->addend; | |
889 | } | |
8a20f077 | 890 | |
c6e90b02 TS |
891 | next = l->next; |
892 | free (l); | |
893 | l = next; | |
894 | } | |
252b5132 | 895 | |
c6e90b02 | 896 | mips_hi16_list = NULL; |
43917054 | 897 | } |
c6e90b02 | 898 | else if (strcmp (bfd_asymbol_name (symbol), "_gp_disp") == 0) |
252b5132 | 899 | { |
c6e90b02 TS |
900 | bfd_reloc_status_type ret; |
901 | bfd_vma gp, relocation; | |
252b5132 | 902 | |
c6e90b02 | 903 | /* FIXME: Does this case ever occur? */ |
252b5132 | 904 | |
c6e90b02 TS |
905 | ret = mips_elf_final_gp (output_bfd, symbol, true, error_message, &gp); |
906 | if (ret != bfd_reloc_ok) | |
907 | return ret; | |
252b5132 | 908 | |
c6e90b02 TS |
909 | relocation = gp - reloc_entry->address; |
910 | relocation += symbol->section->output_section->vma; | |
911 | relocation += symbol->section->output_offset; | |
912 | relocation += reloc_entry->addend; | |
252b5132 | 913 | |
c6e90b02 TS |
914 | if (reloc_entry->address > input_section->_cooked_size) |
915 | return bfd_reloc_outofrange; | |
252b5132 | 916 | |
c6e90b02 TS |
917 | gp_disp_relent = *reloc_entry; |
918 | reloc_entry = &gp_disp_relent; | |
919 | reloc_entry->addend = relocation - 4; | |
252b5132 RH |
920 | } |
921 | ||
c6e90b02 TS |
922 | /* Now do the LO16 reloc in the usual way. */ |
923 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
924 | input_section, output_bfd, error_message); | |
252b5132 RH |
925 | } |
926 | ||
c6e90b02 TS |
927 | /* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset |
928 | table used for PIC code. If the symbol is an external symbol, the | |
929 | instruction is modified to contain the offset of the appropriate | |
930 | entry in the global offset table. If the symbol is a section | |
931 | symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit | |
932 | addends are combined to form the real addend against the section | |
933 | symbol; the GOT16 is modified to contain the offset of an entry in | |
934 | the global offset table, and the LO16 is modified to offset it | |
935 | appropriately. Thus an offset larger than 16 bits requires a | |
936 | modified value in the global offset table. | |
252b5132 | 937 | |
c6e90b02 TS |
938 | This implementation suffices for the assembler, but the linker does |
939 | not yet know how to create global offset tables. */ | |
252b5132 | 940 | |
c6e90b02 TS |
941 | static bfd_reloc_status_type |
942 | mips_elf_got16_reloc (abfd, reloc_entry, symbol, data, input_section, | |
943 | output_bfd, error_message) | |
944 | bfd *abfd; | |
945 | arelent *reloc_entry; | |
946 | asymbol *symbol; | |
947 | PTR data; | |
948 | asection *input_section; | |
252b5132 | 949 | bfd *output_bfd; |
c6e90b02 | 950 | char **error_message; |
252b5132 | 951 | { |
cb7394f2 | 952 | /* If we're relocating, and this is an external symbol, we don't want |
c6e90b02 TS |
953 | to change anything. */ |
954 | if (output_bfd != (bfd *) NULL | |
955 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
956 | && reloc_entry->addend == 0) | |
957 | { | |
958 | reloc_entry->address += input_section->output_offset; | |
959 | return bfd_reloc_ok; | |
960 | } | |
252b5132 | 961 | |
c6e90b02 TS |
962 | /* If we're relocating, and this is a local symbol, we can handle it |
963 | just like HI16. */ | |
964 | if (output_bfd != (bfd *) NULL | |
965 | && (symbol->flags & BSF_SECTION_SYM) != 0) | |
966 | return mips_elf_hi16_reloc (abfd, reloc_entry, symbol, data, | |
967 | input_section, output_bfd, error_message); | |
252b5132 | 968 | |
c6e90b02 | 969 | abort (); |
252b5132 RH |
970 | } |
971 | ||
c6e90b02 TS |
972 | /* Set the GP value for OUTPUT_BFD. Returns false if this is a |
973 | dangerous relocation. */ | |
252b5132 | 974 | |
252b5132 | 975 | static boolean |
c6e90b02 TS |
976 | mips_elf_assign_gp (output_bfd, pgp) |
977 | bfd *output_bfd; | |
978 | bfd_vma *pgp; | |
252b5132 | 979 | { |
c6e90b02 TS |
980 | unsigned int count; |
981 | asymbol **sym; | |
982 | unsigned int i; | |
e92d460e | 983 | |
c6e90b02 TS |
984 | /* If we've already figured out what GP will be, just return it. */ |
985 | *pgp = _bfd_get_gp_value (output_bfd); | |
986 | if (*pgp) | |
987 | return true; | |
988 | ||
989 | count = bfd_get_symcount (output_bfd); | |
990 | sym = bfd_get_outsymbols (output_bfd); | |
252b5132 | 991 | |
c6e90b02 TS |
992 | /* The linker script will have created a symbol named `_gp' with the |
993 | appropriate value. */ | |
994 | if (sym == (asymbol **) NULL) | |
995 | i = count; | |
996 | else | |
252b5132 | 997 | { |
c6e90b02 TS |
998 | for (i = 0; i < count; i++, sym++) |
999 | { | |
1000 | register const char *name; | |
1001 | ||
1002 | name = bfd_asymbol_name (*sym); | |
1003 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
1004 | { | |
1005 | *pgp = bfd_asymbol_value (*sym); | |
1006 | _bfd_set_gp_value (output_bfd, *pgp); | |
1007 | break; | |
1008 | } | |
1009 | } | |
252b5132 RH |
1010 | } |
1011 | ||
c6e90b02 | 1012 | if (i >= count) |
252b5132 | 1013 | { |
c6e90b02 TS |
1014 | /* Only get the error once. */ |
1015 | *pgp = 4; | |
1016 | _bfd_set_gp_value (output_bfd, *pgp); | |
1017 | return false; | |
252b5132 RH |
1018 | } |
1019 | ||
1020 | return true; | |
1021 | } | |
1022 | ||
c6e90b02 TS |
1023 | /* We have to figure out the gp value, so that we can adjust the |
1024 | symbol value correctly. We look up the symbol _gp in the output | |
1025 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
1026 | target data. We don't need to adjust the symbol value for an | |
1027 | external symbol if we are producing relocateable output. */ | |
252b5132 | 1028 | |
c6e90b02 TS |
1029 | static bfd_reloc_status_type |
1030 | mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, pgp) | |
252b5132 | 1031 | bfd *output_bfd; |
c6e90b02 TS |
1032 | asymbol *symbol; |
1033 | boolean relocateable; | |
1034 | char **error_message; | |
1035 | bfd_vma *pgp; | |
252b5132 | 1036 | { |
c6e90b02 TS |
1037 | if (bfd_is_und_section (symbol->section) |
1038 | && ! relocateable) | |
252b5132 | 1039 | { |
c6e90b02 TS |
1040 | *pgp = 0; |
1041 | return bfd_reloc_undefined; | |
252b5132 RH |
1042 | } |
1043 | ||
c6e90b02 TS |
1044 | *pgp = _bfd_get_gp_value (output_bfd); |
1045 | if (*pgp == 0 | |
1046 | && (! relocateable | |
1047 | || (symbol->flags & BSF_SECTION_SYM) != 0)) | |
252b5132 | 1048 | { |
c6e90b02 | 1049 | if (relocateable) |
252b5132 | 1050 | { |
c6e90b02 TS |
1051 | /* Make up a value. */ |
1052 | *pgp = symbol->section->output_section->vma + 0x4000; | |
1053 | _bfd_set_gp_value (output_bfd, *pgp); | |
252b5132 | 1054 | } |
c6e90b02 | 1055 | else if (!mips_elf_assign_gp (output_bfd, pgp)) |
252b5132 | 1056 | { |
c6e90b02 TS |
1057 | *error_message = |
1058 | (char *) _("GP relative relocation when _gp not defined"); | |
1059 | return bfd_reloc_dangerous; | |
252b5132 | 1060 | } |
252b5132 RH |
1061 | } |
1062 | ||
c6e90b02 TS |
1063 | return bfd_reloc_ok; |
1064 | } | |
252b5132 | 1065 | |
c6e90b02 TS |
1066 | /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must |
1067 | become the offset from the gp register. This function also handles | |
1068 | R_MIPS_LITERAL relocations, although those can be handled more | |
1069 | cleverly because the entries in the .lit8 and .lit4 sections can be | |
1070 | merged. */ | |
252b5132 | 1071 | |
c6e90b02 TS |
1072 | bfd_reloc_status_type |
1073 | _bfd_mips_elf32_gprel16_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1074 | output_bfd, error_message) | |
1075 | bfd *abfd; | |
1076 | arelent *reloc_entry; | |
1077 | asymbol *symbol; | |
1078 | PTR data; | |
1079 | asection *input_section; | |
1080 | bfd *output_bfd; | |
1081 | char **error_message; | |
1082 | { | |
1083 | boolean relocateable; | |
1084 | bfd_reloc_status_type ret; | |
1085 | bfd_vma gp; | |
252b5132 | 1086 | |
c6e90b02 TS |
1087 | /* If we're relocating, and this is an external symbol with no |
1088 | addend, we don't want to change anything. We will only have an | |
1089 | addend if this is a newly created reloc, not read from an ELF | |
1090 | file. */ | |
1091 | if (output_bfd != (bfd *) NULL | |
1092 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1093 | && reloc_entry->addend == 0) | |
1094 | { | |
1095 | reloc_entry->address += input_section->output_offset; | |
1096 | return bfd_reloc_ok; | |
1097 | } | |
252b5132 | 1098 | |
c6e90b02 TS |
1099 | if (output_bfd != (bfd *) NULL) |
1100 | relocateable = true; | |
1101 | else | |
1102 | { | |
1103 | relocateable = false; | |
1104 | output_bfd = symbol->section->output_section->owner; | |
1105 | } | |
252b5132 | 1106 | |
c6e90b02 TS |
1107 | ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, |
1108 | &gp); | |
1109 | if (ret != bfd_reloc_ok) | |
1110 | return ret; | |
252b5132 | 1111 | |
c6e90b02 TS |
1112 | return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry, |
1113 | input_section, relocateable, | |
1114 | data, gp); | |
1115 | } | |
252b5132 | 1116 | |
cb7394f2 TS |
1117 | /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must |
1118 | become the offset from the gp register. */ | |
252b5132 | 1119 | |
c6e90b02 TS |
1120 | static bfd_reloc_status_type gprel32_with_gp PARAMS ((bfd *, asymbol *, |
1121 | arelent *, asection *, | |
1122 | boolean, PTR, bfd_vma)); | |
252b5132 | 1123 | |
c6e90b02 TS |
1124 | static bfd_reloc_status_type |
1125 | mips_elf_gprel32_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1126 | output_bfd, error_message) | |
1127 | bfd *abfd; | |
1128 | arelent *reloc_entry; | |
1129 | asymbol *symbol; | |
1130 | PTR data; | |
1131 | asection *input_section; | |
1132 | bfd *output_bfd; | |
1133 | char **error_message; | |
1134 | { | |
1135 | boolean relocateable; | |
1136 | bfd_reloc_status_type ret; | |
1137 | bfd_vma gp; | |
252b5132 | 1138 | |
c6e90b02 TS |
1139 | /* If we're relocating, and this is an external symbol with no |
1140 | addend, we don't want to change anything. We will only have an | |
1141 | addend if this is a newly created reloc, not read from an ELF | |
1142 | file. */ | |
1143 | if (output_bfd != (bfd *) NULL | |
1144 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1145 | && reloc_entry->addend == 0) | |
1146 | { | |
1147 | *error_message = (char *) | |
1148 | _("32bits gp relative relocation occurs for an external symbol"); | |
1149 | return bfd_reloc_outofrange; | |
1150 | } | |
252b5132 | 1151 | |
c6e90b02 TS |
1152 | if (output_bfd != (bfd *) NULL) |
1153 | { | |
1154 | relocateable = true; | |
1155 | gp = _bfd_get_gp_value (output_bfd); | |
1156 | } | |
1157 | else | |
1158 | { | |
1159 | relocateable = false; | |
1160 | output_bfd = symbol->section->output_section->owner; | |
252b5132 | 1161 | |
c6e90b02 TS |
1162 | ret = mips_elf_final_gp (output_bfd, symbol, relocateable, |
1163 | error_message, &gp); | |
1164 | if (ret != bfd_reloc_ok) | |
1165 | return ret; | |
1166 | } | |
252b5132 | 1167 | |
c6e90b02 TS |
1168 | return gprel32_with_gp (abfd, symbol, reloc_entry, input_section, |
1169 | relocateable, data, gp); | |
1170 | } | |
252b5132 | 1171 | |
c6e90b02 TS |
1172 | static bfd_reloc_status_type |
1173 | gprel32_with_gp (abfd, symbol, reloc_entry, input_section, relocateable, data, | |
1174 | gp) | |
1175 | bfd *abfd; | |
1176 | asymbol *symbol; | |
1177 | arelent *reloc_entry; | |
1178 | asection *input_section; | |
1179 | boolean relocateable; | |
1180 | PTR data; | |
1181 | bfd_vma gp; | |
1182 | { | |
1183 | bfd_vma relocation; | |
1184 | unsigned long val; | |
252b5132 | 1185 | |
c6e90b02 TS |
1186 | if (bfd_is_com_section (symbol->section)) |
1187 | relocation = 0; | |
1188 | else | |
1189 | relocation = symbol->value; | |
252b5132 | 1190 | |
c6e90b02 TS |
1191 | relocation += symbol->section->output_section->vma; |
1192 | relocation += symbol->section->output_offset; | |
252b5132 | 1193 | |
c6e90b02 TS |
1194 | if (reloc_entry->address > input_section->_cooked_size) |
1195 | return bfd_reloc_outofrange; | |
252b5132 | 1196 | |
c6e90b02 TS |
1197 | if (reloc_entry->howto->src_mask == 0) |
1198 | { | |
1199 | /* This case arises with the 64-bit MIPS ELF ABI. */ | |
1200 | val = 0; | |
1201 | } | |
1202 | else | |
1203 | val = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
252b5132 | 1204 | |
c6e90b02 TS |
1205 | /* Set val to the offset into the section or symbol. */ |
1206 | val += reloc_entry->addend; | |
252b5132 | 1207 | |
c6e90b02 TS |
1208 | /* Adjust val for the final section location and GP value. If we |
1209 | are producing relocateable output, we don't want to do this for | |
1210 | an external symbol. */ | |
1211 | if (! relocateable | |
1212 | || (symbol->flags & BSF_SECTION_SYM) != 0) | |
1213 | val += relocation - gp; | |
252b5132 | 1214 | |
c6e90b02 | 1215 | bfd_put_32 (abfd, (bfd_vma) val, (bfd_byte *) data + reloc_entry->address); |
c6142e5d | 1216 | |
c6e90b02 TS |
1217 | if (relocateable) |
1218 | reloc_entry->address += input_section->output_offset; | |
252b5132 | 1219 | |
c6e90b02 | 1220 | return bfd_reloc_ok; |
252b5132 RH |
1221 | } |
1222 | ||
c6e90b02 TS |
1223 | /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are |
1224 | generated when addresses are 64 bits. The upper 32 bits are a simple | |
1225 | sign extension. */ | |
7403cb63 | 1226 | |
c6e90b02 TS |
1227 | static bfd_reloc_status_type |
1228 | mips32_64bit_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1229 | output_bfd, error_message) | |
1230 | bfd *abfd; | |
1231 | arelent *reloc_entry; | |
1232 | asymbol *symbol; | |
1233 | PTR data; | |
1234 | asection *input_section; | |
1235 | bfd *output_bfd; | |
1236 | char **error_message; | |
7403cb63 | 1237 | { |
c6e90b02 TS |
1238 | bfd_reloc_status_type r; |
1239 | arelent reloc32; | |
1240 | unsigned long val; | |
1241 | bfd_size_type addr; | |
7403cb63 | 1242 | |
c6e90b02 TS |
1243 | r = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
1244 | input_section, output_bfd, error_message); | |
1245 | if (r != bfd_reloc_continue) | |
1246 | return r; | |
be3ccd9c | 1247 | |
c6e90b02 TS |
1248 | /* Do a normal 32 bit relocation on the lower 32 bits. */ |
1249 | reloc32 = *reloc_entry; | |
1250 | if (bfd_big_endian (abfd)) | |
1251 | reloc32.address += 4; | |
1252 | reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32]; | |
1253 | r = bfd_perform_relocation (abfd, &reloc32, data, input_section, | |
1254 | output_bfd, error_message); | |
be3ccd9c | 1255 | |
c6e90b02 TS |
1256 | /* Sign extend into the upper 32 bits. */ |
1257 | val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address); | |
1258 | if ((val & 0x80000000) != 0) | |
1259 | val = 0xffffffff; | |
1260 | else | |
1261 | val = 0; | |
1262 | addr = reloc_entry->address; | |
1263 | if (bfd_little_endian (abfd)) | |
1264 | addr += 4; | |
1265 | bfd_put_32 (abfd, (bfd_vma) val, (bfd_byte *) data + addr); | |
1266 | ||
1267 | return r; | |
7403cb63 MM |
1268 | } |
1269 | ||
c6e90b02 | 1270 | /* Handle a mips16 jump. */ |
252b5132 | 1271 | |
c6e90b02 TS |
1272 | static bfd_reloc_status_type |
1273 | mips16_jump_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1274 | output_bfd, error_message) | |
1275 | bfd *abfd ATTRIBUTE_UNUSED; | |
1276 | arelent *reloc_entry; | |
1277 | asymbol *symbol; | |
1278 | PTR data ATTRIBUTE_UNUSED; | |
1279 | asection *input_section; | |
252b5132 | 1280 | bfd *output_bfd; |
c6e90b02 | 1281 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 | 1282 | { |
c6e90b02 TS |
1283 | if (output_bfd != (bfd *) NULL |
1284 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1285 | && reloc_entry->addend == 0) | |
252b5132 | 1286 | { |
c6e90b02 TS |
1287 | reloc_entry->address += input_section->output_offset; |
1288 | return bfd_reloc_ok; | |
1289 | } | |
252b5132 | 1290 | |
c6e90b02 TS |
1291 | /* FIXME. */ |
1292 | { | |
1293 | static boolean warned; | |
252b5132 | 1294 | |
c6e90b02 TS |
1295 | if (! warned) |
1296 | (*_bfd_error_handler) | |
1297 | (_("Linking mips16 objects into %s format is not supported"), | |
1298 | bfd_get_target (input_section->output_section->owner)); | |
1299 | warned = true; | |
1300 | } | |
252b5132 | 1301 | |
c6e90b02 TS |
1302 | return bfd_reloc_undefined; |
1303 | } | |
252b5132 | 1304 | |
c6e90b02 | 1305 | /* Handle a mips16 GP relative reloc. */ |
252b5132 | 1306 | |
c6e90b02 TS |
1307 | static bfd_reloc_status_type |
1308 | mips16_gprel_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1309 | output_bfd, error_message) | |
1310 | bfd *abfd; | |
1311 | arelent *reloc_entry; | |
1312 | asymbol *symbol; | |
1313 | PTR data; | |
1314 | asection *input_section; | |
1315 | bfd *output_bfd; | |
1316 | char **error_message; | |
1317 | { | |
1318 | boolean relocateable; | |
1319 | bfd_reloc_status_type ret; | |
1320 | bfd_vma gp; | |
1321 | unsigned short extend, insn; | |
1322 | unsigned long final; | |
252b5132 | 1323 | |
c6e90b02 TS |
1324 | /* If we're relocating, and this is an external symbol with no |
1325 | addend, we don't want to change anything. We will only have an | |
1326 | addend if this is a newly created reloc, not read from an ELF | |
1327 | file. */ | |
1328 | if (output_bfd != NULL | |
1329 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1330 | && reloc_entry->addend == 0) | |
1331 | { | |
1332 | reloc_entry->address += input_section->output_offset; | |
1333 | return bfd_reloc_ok; | |
1334 | } | |
252b5132 | 1335 | |
c6e90b02 TS |
1336 | if (output_bfd != NULL) |
1337 | relocateable = true; | |
1338 | else | |
1339 | { | |
1340 | relocateable = false; | |
1341 | output_bfd = symbol->section->output_section->owner; | |
252b5132 RH |
1342 | } |
1343 | ||
c6e90b02 TS |
1344 | ret = mips_elf_final_gp (output_bfd, symbol, relocateable, error_message, |
1345 | &gp); | |
1346 | if (ret != bfd_reloc_ok) | |
1347 | return ret; | |
252b5132 | 1348 | |
c6e90b02 TS |
1349 | if (reloc_entry->address > input_section->_cooked_size) |
1350 | return bfd_reloc_outofrange; | |
252b5132 | 1351 | |
c6e90b02 TS |
1352 | /* Pick up the mips16 extend instruction and the real instruction. */ |
1353 | extend = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address); | |
1354 | insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address + 2); | |
252b5132 | 1355 | |
c6e90b02 TS |
1356 | /* Stuff the current addend back as a 32 bit value, do the usual |
1357 | relocation, and then clean up. */ | |
1358 | bfd_put_32 (abfd, | |
1359 | (bfd_vma) (((extend & 0x1f) << 11) | |
1360 | | (extend & 0x7e0) | |
1361 | | (insn & 0x1f)), | |
1362 | (bfd_byte *) data + reloc_entry->address); | |
252b5132 | 1363 | |
c6e90b02 TS |
1364 | ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry, |
1365 | input_section, relocateable, data, gp); | |
c6142e5d | 1366 | |
c6e90b02 TS |
1367 | final = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
1368 | bfd_put_16 (abfd, | |
1369 | (bfd_vma) ((extend & 0xf800) | |
1370 | | ((final >> 11) & 0x1f) | |
1371 | | (final & 0x7e0)), | |
1372 | (bfd_byte *) data + reloc_entry->address); | |
1373 | bfd_put_16 (abfd, | |
1374 | (bfd_vma) ((insn & 0xffe0) | |
1375 | | (final & 0x1f)), | |
1376 | (bfd_byte *) data + reloc_entry->address + 2); | |
252b5132 | 1377 | |
c6e90b02 TS |
1378 | return ret; |
1379 | } | |
7403cb63 | 1380 | |
c6e90b02 | 1381 | /* A mapping from BFD reloc types to MIPS ELF reloc types. */ |
252b5132 | 1382 | |
c6e90b02 | 1383 | struct elf_reloc_map { |
cb7394f2 TS |
1384 | bfd_reloc_code_real_type bfd_val; |
1385 | enum elf_mips_reloc_type elf_val; | |
c6e90b02 | 1386 | }; |
252b5132 | 1387 | |
c6e90b02 TS |
1388 | static const struct elf_reloc_map mips_reloc_map[] = |
1389 | { | |
28458e7e | 1390 | { BFD_RELOC_NONE, R_MIPS_NONE }, |
c6e90b02 TS |
1391 | { BFD_RELOC_16, R_MIPS_16 }, |
1392 | { BFD_RELOC_32, R_MIPS_32 }, | |
cb7394f2 | 1393 | /* There is no BFD reloc for R_MIPS_REL32. */ |
c6e90b02 TS |
1394 | { BFD_RELOC_64, R_MIPS_64 }, |
1395 | { BFD_RELOC_MIPS_JMP, R_MIPS_26 }, | |
1396 | { BFD_RELOC_HI16_S, R_MIPS_HI16 }, | |
1397 | { BFD_RELOC_LO16, R_MIPS_LO16 }, | |
1398 | { BFD_RELOC_GPREL16, R_MIPS_GPREL16 }, | |
1399 | { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL }, | |
1400 | { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 }, | |
1401 | { BFD_RELOC_16_PCREL, R_MIPS_PC16 }, | |
1402 | { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 }, | |
1403 | { BFD_RELOC_GPREL32, R_MIPS_GPREL32 }, | |
1404 | { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 }, | |
1405 | { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 }, | |
1406 | { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 }, | |
1407 | { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 }, | |
1408 | { BFD_RELOC_MIPS_SUB, R_MIPS_SUB }, | |
1409 | { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE }, | |
1410 | { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST }, | |
1411 | { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP } | |
1412 | }; | |
252b5132 | 1413 | |
c6e90b02 | 1414 | /* Given a BFD reloc type, return a howto structure. */ |
252b5132 | 1415 | |
c6e90b02 TS |
1416 | static reloc_howto_type * |
1417 | bfd_elf32_bfd_reloc_type_lookup (abfd, code) | |
1418 | bfd *abfd; | |
1419 | bfd_reloc_code_real_type code; | |
252b5132 | 1420 | { |
c6e90b02 | 1421 | unsigned int i; |
cb7394f2 | 1422 | reloc_howto_type *howto_table = elf_mips_howto_table_rel; |
252b5132 | 1423 | |
cb7394f2 TS |
1424 | for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); |
1425 | i++) | |
252b5132 | 1426 | { |
cb7394f2 TS |
1427 | if (mips_reloc_map[i].bfd_val == code) |
1428 | return &howto_table[(int) mips_reloc_map[i].elf_val]; | |
252b5132 RH |
1429 | } |
1430 | ||
c6e90b02 | 1431 | switch (code) |
252b5132 | 1432 | { |
c6e90b02 TS |
1433 | default: |
1434 | bfd_set_error (bfd_error_bad_value); | |
1435 | return NULL; | |
252b5132 | 1436 | |
c6e90b02 TS |
1437 | case BFD_RELOC_CTOR: |
1438 | /* We need to handle BFD_RELOC_CTOR specially. | |
1439 | Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the | |
1440 | size of addresses on this architecture. */ | |
1441 | if (bfd_arch_bits_per_address (abfd) == 32) | |
cb7394f2 | 1442 | return &howto_table[(int) R_MIPS_32]; |
c6e90b02 TS |
1443 | else |
1444 | return &elf_mips_ctor64_howto; | |
252b5132 | 1445 | |
c6e90b02 TS |
1446 | case BFD_RELOC_MIPS16_JMP: |
1447 | return &elf_mips16_jump_howto; | |
1448 | case BFD_RELOC_MIPS16_GPREL: | |
1449 | return &elf_mips16_gprel_howto; | |
1450 | case BFD_RELOC_VTABLE_INHERIT: | |
1451 | return &elf_mips_gnu_vtinherit_howto; | |
1452 | case BFD_RELOC_VTABLE_ENTRY: | |
1453 | return &elf_mips_gnu_vtentry_howto; | |
1454 | case BFD_RELOC_PCREL_HI16_S: | |
1455 | return &elf_mips_gnu_rel_hi16; | |
1456 | case BFD_RELOC_PCREL_LO16: | |
1457 | return &elf_mips_gnu_rel_lo16; | |
1458 | case BFD_RELOC_16_PCREL_S2: | |
1459 | return &elf_mips_gnu_rel16_s2; | |
1460 | case BFD_RELOC_64_PCREL: | |
1461 | return &elf_mips_gnu_pcrel64; | |
1462 | case BFD_RELOC_32_PCREL: | |
1463 | return &elf_mips_gnu_pcrel32; | |
1464 | } | |
1465 | } | |
252b5132 | 1466 | |
c6e90b02 | 1467 | /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */ |
252b5132 | 1468 | |
c6e90b02 TS |
1469 | static reloc_howto_type * |
1470 | mips_elf32_rtype_to_howto (r_type, rela_p) | |
1471 | unsigned int r_type; | |
1472 | boolean rela_p ATTRIBUTE_UNUSED; | |
1473 | { | |
1474 | switch (r_type) | |
1475 | { | |
1476 | case R_MIPS16_26: | |
1477 | return &elf_mips16_jump_howto; | |
c6e90b02 TS |
1478 | case R_MIPS16_GPREL: |
1479 | return &elf_mips16_gprel_howto; | |
c6e90b02 TS |
1480 | case R_MIPS_GNU_VTINHERIT: |
1481 | return &elf_mips_gnu_vtinherit_howto; | |
c6e90b02 TS |
1482 | case R_MIPS_GNU_VTENTRY: |
1483 | return &elf_mips_gnu_vtentry_howto; | |
c6e90b02 TS |
1484 | case R_MIPS_GNU_REL_HI16: |
1485 | return &elf_mips_gnu_rel_hi16; | |
c6e90b02 TS |
1486 | case R_MIPS_GNU_REL_LO16: |
1487 | return &elf_mips_gnu_rel_lo16; | |
c6e90b02 TS |
1488 | case R_MIPS_GNU_REL16_S2: |
1489 | return &elf_mips_gnu_rel16_s2; | |
c6e90b02 TS |
1490 | case R_MIPS_PC64: |
1491 | return &elf_mips_gnu_pcrel64; | |
c6e90b02 TS |
1492 | case R_MIPS_PC32: |
1493 | return &elf_mips_gnu_pcrel32; | |
c6e90b02 TS |
1494 | default: |
1495 | BFD_ASSERT (r_type < (unsigned int) R_MIPS_max); | |
1496 | return &elf_mips_howto_table_rel[r_type]; | |
1497 | } | |
1498 | } | |
252b5132 | 1499 | |
c6e90b02 | 1500 | /* Given a MIPS Elf32_Internal_Rel, fill in an arelent structure. */ |
252b5132 | 1501 | |
c6e90b02 TS |
1502 | static void |
1503 | mips_info_to_howto_rel (abfd, cache_ptr, dst) | |
1504 | bfd *abfd; | |
1505 | arelent *cache_ptr; | |
1506 | Elf32_Internal_Rel *dst; | |
1507 | { | |
1508 | unsigned int r_type; | |
252b5132 | 1509 | |
c6e90b02 TS |
1510 | r_type = ELF32_R_TYPE (dst->r_info); |
1511 | cache_ptr->howto = mips_elf32_rtype_to_howto (r_type, false); | |
252b5132 | 1512 | |
c6e90b02 TS |
1513 | /* The addend for a GPREL16 or LITERAL relocation comes from the GP |
1514 | value for the object file. We get the addend now, rather than | |
1515 | when we do the relocation, because the symbol manipulations done | |
1516 | by the linker may cause us to lose track of the input BFD. */ | |
1517 | if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0 | |
1518 | && (r_type == (unsigned int) R_MIPS_GPREL16 | |
1519 | || r_type == (unsigned int) R_MIPS_LITERAL)) | |
1520 | cache_ptr->addend = elf_gp (abfd); | |
1521 | } | |
5499724a | 1522 | |
c6e90b02 | 1523 | /* Given a MIPS Elf32_Internal_Rela, fill in an arelent structure. */ |
252b5132 | 1524 | |
c6e90b02 TS |
1525 | static void |
1526 | mips_info_to_howto_rela (abfd, cache_ptr, dst) | |
1527 | bfd *abfd; | |
1528 | arelent *cache_ptr; | |
1529 | Elf32_Internal_Rela *dst; | |
1530 | { | |
1531 | /* Since an Elf32_Internal_Rel is an initial prefix of an | |
1532 | Elf32_Internal_Rela, we can just use mips_info_to_howto_rel | |
1533 | above. */ | |
1534 | mips_info_to_howto_rel (abfd, cache_ptr, (Elf32_Internal_Rel *) dst); | |
252b5132 | 1535 | |
c6e90b02 TS |
1536 | /* If we ever need to do any extra processing with dst->r_addend |
1537 | (the field omitted in an Elf32_Internal_Rel) we can do it here. */ | |
1538 | } | |
1539 | \f | |
1540 | /* Determine whether a symbol is global for the purposes of splitting | |
1541 | the symbol table into global symbols and local symbols. At least | |
1542 | on Irix 5, this split must be between section symbols and all other | |
1543 | symbols. On most ELF targets the split is between static symbols | |
1544 | and externally visible symbols. */ | |
252b5132 | 1545 | |
c6e90b02 TS |
1546 | static boolean |
1547 | mips_elf_sym_is_global (abfd, sym) | |
1548 | bfd *abfd ATTRIBUTE_UNUSED; | |
1549 | asymbol *sym; | |
1550 | { | |
1551 | if (SGI_COMPAT (abfd)) | |
1552 | return (sym->flags & BSF_SECTION_SYM) == 0; | |
1553 | else | |
1554 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0 | |
1555 | || bfd_is_und_section (bfd_get_section (sym)) | |
1556 | || bfd_is_com_section (bfd_get_section (sym))); | |
1557 | } | |
1558 | \f | |
1559 | /* Set the right machine number for a MIPS ELF file. */ | |
7403cb63 | 1560 | |
c6e90b02 TS |
1561 | static boolean |
1562 | mips_elf32_object_p (abfd) | |
1563 | bfd *abfd; | |
1564 | { | |
1565 | unsigned long mach; | |
103186c6 | 1566 | |
c6e90b02 TS |
1567 | /* Irix 5 and 6 are broken. Object file symbol tables are not always |
1568 | sorted correctly such that local symbols precede global symbols, | |
1569 | and the sh_info field in the symbol table is not always right. */ | |
1570 | if (SGI_COMPAT (abfd)) | |
1571 | elf_bad_symtab (abfd) = true; | |
103186c6 | 1572 | |
8a397dad TS |
1573 | if (ABI_N32_P (abfd)) |
1574 | return false; | |
1575 | ||
c6e90b02 TS |
1576 | mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags); |
1577 | bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach); | |
252b5132 | 1578 | |
c6e90b02 TS |
1579 | return true; |
1580 | } | |
1581 | \f | |
1582 | /* MIPS ELF local labels start with '$', not 'L'. */ | |
252b5132 | 1583 | |
c6e90b02 TS |
1584 | static boolean |
1585 | mips_elf_is_local_label_name (abfd, name) | |
1586 | bfd *abfd; | |
1587 | const char *name; | |
1588 | { | |
1589 | if (name[0] == '$') | |
1590 | return true; | |
252b5132 | 1591 | |
c6e90b02 TS |
1592 | /* On Irix 6, the labels go back to starting with '.', so we accept |
1593 | the generic ELF local label syntax as well. */ | |
1594 | return _bfd_elf_is_local_label_name (abfd, name); | |
252b5132 RH |
1595 | } |
1596 | \f | |
c6e90b02 | 1597 | /* Support for core dump NOTE sections. */ |
bb0082d6 | 1598 | static boolean |
c6e90b02 | 1599 | elf32_mips_grok_prstatus (abfd, note) |
bb0082d6 AM |
1600 | bfd *abfd; |
1601 | Elf_Internal_Note *note; | |
1602 | { | |
1603 | int offset; | |
dc810e39 | 1604 | unsigned int raw_size; |
bb0082d6 AM |
1605 | |
1606 | switch (note->descsz) | |
1607 | { | |
1608 | default: | |
1609 | return false; | |
1610 | ||
1611 | case 256: /* Linux/MIPS */ | |
1612 | /* pr_cursig */ | |
1613 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
1614 | ||
1615 | /* pr_pid */ | |
1616 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
1617 | ||
1618 | /* pr_reg */ | |
1619 | offset = 72; | |
1620 | raw_size = 180; | |
1621 | ||
1622 | break; | |
1623 | } | |
1624 | ||
1625 | /* Make a ".reg/999" section. */ | |
936e320b AM |
1626 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
1627 | raw_size, note->descpos + offset); | |
bb0082d6 AM |
1628 | } |
1629 | ||
9e80ff3a | 1630 | static boolean |
c6e90b02 | 1631 | elf32_mips_grok_psinfo (abfd, note) |
bb0082d6 AM |
1632 | bfd *abfd; |
1633 | Elf_Internal_Note *note; | |
1634 | { | |
1635 | switch (note->descsz) | |
1636 | { | |
1637 | default: | |
1638 | return false; | |
1639 | ||
1640 | case 128: /* Linux/MIPS elf_prpsinfo */ | |
1641 | elf_tdata (abfd)->core_program | |
1642 | = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); | |
1643 | elf_tdata (abfd)->core_command | |
1644 | = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); | |
1645 | } | |
1646 | ||
1647 | /* Note that for some reason, a spurious space is tacked | |
1648 | onto the end of the args in some (at least one anyway) | |
1649 | implementations, so strip it off if it exists. */ | |
1650 | ||
1651 | { | |
1652 | char *command = elf_tdata (abfd)->core_command; | |
1653 | int n = strlen (command); | |
1654 | ||
1655 | if (0 < n && command[n - 1] == ' ') | |
1656 | command[n - 1] = '\0'; | |
1657 | } | |
1658 | ||
1659 | return true; | |
1660 | } | |
1661 | \f | |
c6e90b02 TS |
1662 | /* Depending on the target vector we generate some version of Irix |
1663 | executables or "normal" MIPS ELF ABI executables. */ | |
1664 | static irix_compat_t | |
1665 | elf32_mips_irix_compat (abfd) | |
1666 | bfd *abfd; | |
1667 | { | |
cb7394f2 TS |
1668 | if ((abfd->xvec == &bfd_elf32_bigmips_vec) |
1669 | || (abfd->xvec == &bfd_elf32_littlemips_vec)) | |
c6e90b02 | 1670 | return ict_irix5; |
cb7394f2 TS |
1671 | else |
1672 | return ict_none; | |
c6e90b02 | 1673 | } |
73d074b4 | 1674 | \f |
030d18fb CD |
1675 | /* Given a data section and an in-memory embedded reloc section, store |
1676 | relocation information into the embedded reloc section which can be | |
1677 | used at runtime to relocate the data section. This is called by the | |
1678 | linker when the --embedded-relocs switch is used. This is called | |
1679 | after the add_symbols entry point has been called for all the | |
1680 | objects, and before the final_link entry point is called. */ | |
1681 | ||
1682 | boolean | |
1683 | bfd_mips_elf32_create_embedded_relocs (abfd, info, datasec, relsec, errmsg) | |
1684 | bfd *abfd; | |
1685 | struct bfd_link_info *info; | |
1686 | asection *datasec; | |
1687 | asection *relsec; | |
1688 | char **errmsg; | |
1689 | { | |
1690 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc AM |
1691 | Elf_Internal_Sym *isymbuf = NULL; |
1692 | Elf_Internal_Rela *internal_relocs = NULL; | |
030d18fb CD |
1693 | Elf_Internal_Rela *irel, *irelend; |
1694 | bfd_byte *p; | |
030d18fb CD |
1695 | |
1696 | BFD_ASSERT (! info->relocateable); | |
1697 | ||
1698 | *errmsg = NULL; | |
1699 | ||
1700 | if (datasec->reloc_count == 0) | |
1701 | return true; | |
1702 | ||
030d18fb CD |
1703 | /* Read this BFD's symbols if we haven't done so already, or get the cached |
1704 | copy if it exists. */ | |
6cdc0ccc AM |
1705 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1706 | if (symtab_hdr->sh_info != 0) | |
030d18fb | 1707 | { |
6cdc0ccc AM |
1708 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
1709 | if (isymbuf == NULL) | |
1710 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
1711 | symtab_hdr->sh_info, 0, | |
1712 | NULL, NULL, NULL); | |
1713 | if (isymbuf == NULL) | |
030d18fb CD |
1714 | goto error_return; |
1715 | } | |
1716 | ||
1717 | /* Get a copy of the native relocations. */ | |
1718 | internal_relocs = (_bfd_elf32_link_read_relocs | |
1719 | (abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL, | |
1720 | info->keep_memory)); | |
1721 | if (internal_relocs == NULL) | |
1722 | goto error_return; | |
030d18fb CD |
1723 | |
1724 | relsec->contents = (bfd_byte *) bfd_alloc (abfd, datasec->reloc_count * 12); | |
1725 | if (relsec->contents == NULL) | |
1726 | goto error_return; | |
1727 | ||
1728 | p = relsec->contents; | |
1729 | ||
1730 | irelend = internal_relocs + datasec->reloc_count; | |
1731 | ||
1732 | for (irel = internal_relocs; irel < irelend; irel++, p += 12) | |
1733 | { | |
1734 | asection *targetsec; | |
1735 | ||
1736 | /* We are going to write a four byte longword into the runtime | |
c6e90b02 TS |
1737 | reloc section. The longword will be the address in the data |
1738 | section which must be relocated. It is followed by the name | |
1739 | of the target section NUL-padded or truncated to 8 | |
1740 | characters. */ | |
030d18fb CD |
1741 | |
1742 | /* We can only relocate absolute longword relocs at run time. */ | |
1743 | if ((ELF32_R_TYPE (irel->r_info) != (int) R_MIPS_32) && | |
1744 | (ELF32_R_TYPE (irel->r_info) != (int) R_MIPS_64)) | |
1745 | { | |
1746 | *errmsg = _("unsupported reloc type"); | |
1747 | bfd_set_error (bfd_error_bad_value); | |
1748 | goto error_return; | |
1749 | } | |
1750 | /* Get the target section referred to by the reloc. */ | |
1751 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
1752 | { | |
6cdc0ccc | 1753 | Elf_Internal_Sym *isym; |
030d18fb CD |
1754 | |
1755 | /* A local symbol. */ | |
6cdc0ccc AM |
1756 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
1757 | targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
030d18fb CD |
1758 | } |
1759 | else | |
1760 | { | |
1761 | unsigned long indx; | |
1762 | struct elf_link_hash_entry *h; | |
1763 | ||
1764 | /* An external symbol. */ | |
1765 | indx = ELF32_R_SYM (irel->r_info); | |
1766 | h = elf_sym_hashes (abfd)[indx]; | |
1767 | targetsec = NULL; | |
1768 | /* | |
c6e90b02 TS |
1769 | For some reason, in certain programs, the symbol will |
1770 | not be in the hash table. It seems to happen when you | |
1771 | declare a static table of pointers to const external structures. | |
1772 | In this case, the relocs are relative to data, not | |
1773 | text, so just treating it like an undefined link | |
1774 | should be sufficient. */ | |
030d18fb CD |
1775 | BFD_ASSERT(h != NULL); |
1776 | if (h->root.type == bfd_link_hash_defined | |
1777 | || h->root.type == bfd_link_hash_defweak) | |
1778 | targetsec = h->root.u.def.section; | |
1779 | } | |
1780 | ||
1781 | ||
1782 | /* | |
c6e90b02 TS |
1783 | Set the low bit of the relocation offset if it's a MIPS64 reloc. |
1784 | Relocations will always be on (at least) 32-bit boundaries. */ | |
030d18fb CD |
1785 | |
1786 | bfd_put_32 (abfd, ((irel->r_offset + datasec->output_offset) + | |
1787 | ((ELF32_R_TYPE (irel->r_info) == (int) R_MIPS_64) ? 1 : 0)), | |
1788 | p); | |
1789 | memset (p + 4, 0, 8); | |
1790 | if (targetsec != NULL) | |
1791 | strncpy (p + 4, targetsec->output_section->name, 8); | |
1792 | } | |
1793 | ||
6cdc0ccc AM |
1794 | if (internal_relocs != NULL |
1795 | && elf_section_data (datasec)->relocs != internal_relocs) | |
1796 | free (internal_relocs); | |
1797 | if (isymbuf != NULL | |
1798 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1799 | free (isymbuf); | |
030d18fb CD |
1800 | return true; |
1801 | ||
1802 | error_return: | |
6cdc0ccc AM |
1803 | if (internal_relocs != NULL |
1804 | && elf_section_data (datasec)->relocs != internal_relocs) | |
1805 | free (internal_relocs); | |
1806 | if (isymbuf != NULL | |
1807 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1808 | free (isymbuf); | |
030d18fb CD |
1809 | return false; |
1810 | } | |
1811 | \f | |
252b5132 RH |
1812 | /* ECOFF swapping routines. These are used when dealing with the |
1813 | .mdebug section, which is in the ECOFF debugging format. */ | |
be3ccd9c | 1814 | static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { |
252b5132 RH |
1815 | /* Symbol table magic number. */ |
1816 | magicSym, | |
1817 | /* Alignment of debugging information. E.g., 4. */ | |
1818 | 4, | |
1819 | /* Sizes of external symbolic information. */ | |
1820 | sizeof (struct hdr_ext), | |
1821 | sizeof (struct dnr_ext), | |
1822 | sizeof (struct pdr_ext), | |
1823 | sizeof (struct sym_ext), | |
1824 | sizeof (struct opt_ext), | |
1825 | sizeof (struct fdr_ext), | |
1826 | sizeof (struct rfd_ext), | |
1827 | sizeof (struct ext_ext), | |
1828 | /* Functions to swap in external symbolic data. */ | |
1829 | ecoff_swap_hdr_in, | |
1830 | ecoff_swap_dnr_in, | |
1831 | ecoff_swap_pdr_in, | |
1832 | ecoff_swap_sym_in, | |
1833 | ecoff_swap_opt_in, | |
1834 | ecoff_swap_fdr_in, | |
1835 | ecoff_swap_rfd_in, | |
1836 | ecoff_swap_ext_in, | |
1837 | _bfd_ecoff_swap_tir_in, | |
1838 | _bfd_ecoff_swap_rndx_in, | |
1839 | /* Functions to swap out external symbolic data. */ | |
1840 | ecoff_swap_hdr_out, | |
1841 | ecoff_swap_dnr_out, | |
1842 | ecoff_swap_pdr_out, | |
1843 | ecoff_swap_sym_out, | |
1844 | ecoff_swap_opt_out, | |
1845 | ecoff_swap_fdr_out, | |
1846 | ecoff_swap_rfd_out, | |
1847 | ecoff_swap_ext_out, | |
1848 | _bfd_ecoff_swap_tir_out, | |
1849 | _bfd_ecoff_swap_rndx_out, | |
1850 | /* Function to read in symbolic data. */ | |
1851 | _bfd_mips_elf_read_ecoff_info | |
1852 | }; | |
1853 | \f | |
252b5132 RH |
1854 | #define ELF_ARCH bfd_arch_mips |
1855 | #define ELF_MACHINE_CODE EM_MIPS | |
1856 | ||
1857 | /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses | |
1858 | a value of 0x1000, and we are compatible. */ | |
1859 | #define ELF_MAXPAGESIZE 0x1000 | |
1860 | ||
1861 | #define elf_backend_collect true | |
1862 | #define elf_backend_type_change_ok true | |
1863 | #define elf_backend_can_gc_sections true | |
3f830999 | 1864 | #define elf_info_to_howto mips_info_to_howto_rela |
252b5132 RH |
1865 | #define elf_info_to_howto_rel mips_info_to_howto_rel |
1866 | #define elf_backend_sym_is_global mips_elf_sym_is_global | |
c6e90b02 | 1867 | #define elf_backend_object_p mips_elf32_object_p |
d75bc93d TS |
1868 | #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing |
1869 | #define elf_backend_section_processing _bfd_mips_elf_section_processing | |
103186c6 | 1870 | #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr |
252b5132 RH |
1871 | #define elf_backend_fake_sections _bfd_mips_elf_fake_sections |
1872 | #define elf_backend_section_from_bfd_section \ | |
1873 | _bfd_mips_elf_section_from_bfd_section | |
103186c6 | 1874 | #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook |
d75bc93d TS |
1875 | #define elf_backend_link_output_symbol_hook \ |
1876 | _bfd_mips_elf_link_output_symbol_hook | |
103186c6 MM |
1877 | #define elf_backend_create_dynamic_sections \ |
1878 | _bfd_mips_elf_create_dynamic_sections | |
1879 | #define elf_backend_check_relocs _bfd_mips_elf_check_relocs | |
1880 | #define elf_backend_adjust_dynamic_symbol \ | |
1881 | _bfd_mips_elf_adjust_dynamic_symbol | |
1882 | #define elf_backend_always_size_sections \ | |
1883 | _bfd_mips_elf_always_size_sections | |
1884 | #define elf_backend_size_dynamic_sections \ | |
1885 | _bfd_mips_elf_size_dynamic_sections | |
1886 | #define elf_backend_relocate_section _bfd_mips_elf_relocate_section | |
103186c6 MM |
1887 | #define elf_backend_finish_dynamic_symbol \ |
1888 | _bfd_mips_elf_finish_dynamic_symbol | |
1889 | #define elf_backend_finish_dynamic_sections \ | |
1890 | _bfd_mips_elf_finish_dynamic_sections | |
d75bc93d TS |
1891 | #define elf_backend_final_write_processing \ |
1892 | _bfd_mips_elf_final_write_processing | |
1893 | #define elf_backend_additional_program_headers \ | |
1894 | _bfd_mips_elf_additional_program_headers | |
1895 | #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map | |
103186c6 MM |
1896 | #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook |
1897 | #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook | |
8a20f077 UC |
1898 | #define elf_backend_copy_indirect_symbol \ |
1899 | _bfd_mips_elf_copy_indirect_symbol | |
b305ef96 | 1900 | #define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol |
c6e90b02 TS |
1901 | #define elf_backend_grok_prstatus elf32_mips_grok_prstatus |
1902 | #define elf_backend_grok_psinfo elf32_mips_grok_psinfo | |
d75bc93d TS |
1903 | #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap |
1904 | ||
1905 | #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO) | |
1906 | #define elf_backend_plt_header_size 0 | |
1907 | #define elf_backend_may_use_rel_p 1 | |
1908 | #define elf_backend_may_use_rela_p 0 | |
1909 | #define elf_backend_default_use_rela_p 0 | |
1910 | #define elf_backend_sign_extend_vma true | |
b305ef96 | 1911 | |
d01414a5 | 1912 | #define elf_backend_discard_info _bfd_mips_elf_discard_info |
73d074b4 | 1913 | #define elf_backend_ignore_discarded_relocs \ |
53bfd6b4 | 1914 | _bfd_mips_elf_ignore_discarded_relocs |
c6e90b02 TS |
1915 | #define elf_backend_mips_irix_compat elf32_mips_irix_compat |
1916 | #define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto | |
252b5132 RH |
1917 | #define bfd_elf32_bfd_is_local_label_name \ |
1918 | mips_elf_is_local_label_name | |
1919 | #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line | |
1920 | #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents | |
c6e90b02 TS |
1921 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
1922 | _bfd_elf_mips_get_relocated_section_contents | |
252b5132 | 1923 | #define bfd_elf32_bfd_link_hash_table_create \ |
103186c6 MM |
1924 | _bfd_mips_elf_link_hash_table_create |
1925 | #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link | |
252b5132 RH |
1926 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
1927 | _bfd_mips_elf_merge_private_bfd_data | |
1928 | #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags | |
1929 | #define bfd_elf32_bfd_print_private_bfd_data \ | |
1930 | _bfd_mips_elf_print_private_bfd_data | |
e364195d | 1931 | |
d75bc93d TS |
1932 | /* Support for SGI-ish mips targets. */ |
1933 | #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec | |
1934 | #define TARGET_LITTLE_NAME "elf32-littlemips" | |
1935 | #define TARGET_BIG_SYM bfd_elf32_bigmips_vec | |
1936 | #define TARGET_BIG_NAME "elf32-bigmips" | |
1937 | ||
1938 | #include "elf32-target.h" | |
e364195d | 1939 | |
d75bc93d TS |
1940 | /* Support for traditional mips targets. */ |
1941 | #define INCLUDED_TARGET_FILE /* More a type of flag. */ | |
e364195d UC |
1942 | |
1943 | #undef TARGET_LITTLE_SYM | |
1944 | #undef TARGET_LITTLE_NAME | |
1945 | #undef TARGET_BIG_SYM | |
1946 | #undef TARGET_BIG_NAME | |
1947 | ||
1948 | #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec | |
1949 | #define TARGET_LITTLE_NAME "elf32-tradlittlemips" | |
1950 | #define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec | |
1951 | #define TARGET_BIG_NAME "elf32-tradbigmips" | |
1952 | ||
c6e90b02 | 1953 | /* Include the target file again for this target. */ |
e364195d | 1954 | #include "elf32-target.h" |