Commit | Line | Data |
---|---|---|
efcbd82c | 1 | /* MIPS-specific support for 32-bit ELF |
f0abc2a1 | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
0f20cc35 | 3 | 2003, 2004, 2005 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 | |
3e110533 | 26 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
252b5132 RH |
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 | 39 | #include "elf/mips.h" |
0a44bf69 | 40 | #include "elf-vxworks.h" |
252b5132 RH |
41 | |
42 | /* Get the ECOFF swapping routines. */ | |
43 | #include "coff/sym.h" | |
44 | #include "coff/symconst.h" | |
45 | #include "coff/internal.h" | |
46 | #include "coff/ecoff.h" | |
47 | #include "coff/mips.h" | |
23e2c83b | 48 | #define ECOFF_SIGNED_32 |
252b5132 RH |
49 | #include "ecoffswap.h" |
50 | ||
a7ebbfdf | 51 | static bfd_reloc_status_type gprel32_with_gp |
11a2be4d | 52 | (bfd *, asymbol *, arelent *, asection *, bfd_boolean, void *, bfd_vma); |
c6e90b02 | 53 | static bfd_reloc_status_type mips_elf_gprel32_reloc |
11a2be4d | 54 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
252b5132 | 55 | static bfd_reloc_status_type mips32_64bit_reloc |
11a2be4d | 56 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
252b5132 | 57 | static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup |
11a2be4d | 58 | (bfd *, bfd_reloc_code_real_type); |
c6e90b02 | 59 | static reloc_howto_type *mips_elf32_rtype_to_howto |
11a2be4d | 60 | (unsigned int, bfd_boolean); |
252b5132 | 61 | static void mips_info_to_howto_rel |
11a2be4d | 62 | (bfd *, arelent *, Elf_Internal_Rela *); |
3f830999 | 63 | static void mips_info_to_howto_rela |
11a2be4d | 64 | (bfd *, arelent *, Elf_Internal_Rela *); |
b34976b6 | 65 | static bfd_boolean mips_elf_sym_is_global |
11a2be4d | 66 | (bfd *, asymbol *); |
b34976b6 | 67 | static bfd_boolean mips_elf32_object_p |
11a2be4d | 68 | (bfd *); |
b34976b6 | 69 | static bfd_boolean mips_elf_is_local_label_name |
11a2be4d | 70 | (bfd *, const char *); |
252b5132 | 71 | static bfd_reloc_status_type mips16_jump_reloc |
11a2be4d | 72 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
252b5132 | 73 | static bfd_reloc_status_type mips16_gprel_reloc |
11a2be4d | 74 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
252b5132 | 75 | static bfd_reloc_status_type mips_elf_final_gp |
11a2be4d | 76 | (bfd *, asymbol *, bfd_boolean, char **, bfd_vma *); |
b34976b6 | 77 | static bfd_boolean mips_elf_assign_gp |
11a2be4d | 78 | (bfd *, bfd_vma *); |
b34976b6 | 79 | static bfd_boolean elf32_mips_grok_prstatus |
11a2be4d | 80 | (bfd *, Elf_Internal_Note *); |
b34976b6 | 81 | static bfd_boolean elf32_mips_grok_psinfo |
11a2be4d | 82 | (bfd *, Elf_Internal_Note *); |
c6e90b02 | 83 | static irix_compat_t elf32_mips_irix_compat |
11a2be4d | 84 | (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 */ | |
b34976b6 | 113 | FALSE, /* pc_relative */ |
d75bc93d TS |
114 | 0, /* bitpos */ |
115 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 116 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 117 | "R_MIPS_NONE", /* name */ |
b34976b6 | 118 | FALSE, /* partial_inplace */ |
d75bc93d TS |
119 | 0, /* src_mask */ |
120 | 0, /* dst_mask */ | |
b34976b6 | 121 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
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 */ | |
b34976b6 | 128 | FALSE, /* pc_relative */ |
d75bc93d TS |
129 | 0, /* bitpos */ |
130 | complain_overflow_signed, /* complain_on_overflow */ | |
30ac9238 | 131 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 132 | "R_MIPS_16", /* name */ |
b34976b6 | 133 | TRUE, /* partial_inplace */ |
d75bc93d TS |
134 | 0x0000ffff, /* src_mask */ |
135 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 136 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
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 */ | |
b34976b6 | 143 | FALSE, /* pc_relative */ |
d75bc93d TS |
144 | 0, /* bitpos */ |
145 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 146 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 147 | "R_MIPS_32", /* name */ |
b34976b6 | 148 | TRUE, /* partial_inplace */ |
d75bc93d TS |
149 | 0xffffffff, /* src_mask */ |
150 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 151 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
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 */ | |
b34976b6 | 158 | FALSE, /* pc_relative */ |
d75bc93d TS |
159 | 0, /* bitpos */ |
160 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 161 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 162 | "R_MIPS_REL32", /* name */ |
b34976b6 | 163 | TRUE, /* partial_inplace */ |
d75bc93d TS |
164 | 0xffffffff, /* src_mask */ |
165 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 166 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
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 */ | |
b34976b6 | 173 | FALSE, /* pc_relative */ |
d75bc93d TS |
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. */ | |
30ac9238 | 179 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 180 | "R_MIPS_26", /* name */ |
b34976b6 | 181 | TRUE, /* partial_inplace */ |
d75bc93d TS |
182 | 0x03ffffff, /* src_mask */ |
183 | 0x03ffffff, /* dst_mask */ | |
b34976b6 | 184 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
185 | |
186 | /* High 16 bits of symbol value. */ | |
187 | HOWTO (R_MIPS_HI16, /* type */ | |
30ac9238 | 188 | 16, /* rightshift */ |
d75bc93d TS |
189 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
190 | 16, /* bitsize */ | |
b34976b6 | 191 | FALSE, /* pc_relative */ |
d75bc93d TS |
192 | 0, /* bitpos */ |
193 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 194 | _bfd_mips_elf_hi16_reloc, /* special_function */ |
d75bc93d | 195 | "R_MIPS_HI16", /* name */ |
b34976b6 | 196 | TRUE, /* partial_inplace */ |
d75bc93d TS |
197 | 0x0000ffff, /* src_mask */ |
198 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 199 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
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 */ | |
b34976b6 | 206 | FALSE, /* pc_relative */ |
d75bc93d TS |
207 | 0, /* bitpos */ |
208 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 209 | _bfd_mips_elf_lo16_reloc, /* special_function */ |
d75bc93d | 210 | "R_MIPS_LO16", /* name */ |
b34976b6 | 211 | TRUE, /* partial_inplace */ |
d75bc93d TS |
212 | 0x0000ffff, /* src_mask */ |
213 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 214 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
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 */ | |
b34976b6 | 221 | FALSE, /* pc_relative */ |
d75bc93d TS |
222 | 0, /* bitpos */ |
223 | complain_overflow_signed, /* complain_on_overflow */ | |
c6e90b02 | 224 | _bfd_mips_elf32_gprel16_reloc, /* special_function */ |
d75bc93d | 225 | "R_MIPS_GPREL16", /* name */ |
b34976b6 | 226 | TRUE, /* partial_inplace */ |
d75bc93d TS |
227 | 0x0000ffff, /* src_mask */ |
228 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 229 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
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 */ | |
b34976b6 | 236 | FALSE, /* pc_relative */ |
d75bc93d TS |
237 | 0, /* bitpos */ |
238 | complain_overflow_signed, /* complain_on_overflow */ | |
c6e90b02 | 239 | _bfd_mips_elf32_gprel16_reloc, /* special_function */ |
d75bc93d | 240 | "R_MIPS_LITERAL", /* name */ |
b34976b6 | 241 | TRUE, /* partial_inplace */ |
d75bc93d TS |
242 | 0x0000ffff, /* src_mask */ |
243 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 244 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
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 */ | |
b34976b6 | 251 | FALSE, /* pc_relative */ |
d75bc93d TS |
252 | 0, /* bitpos */ |
253 | complain_overflow_signed, /* complain_on_overflow */ | |
30ac9238 | 254 | _bfd_mips_elf_got16_reloc, /* special_function */ |
d75bc93d | 255 | "R_MIPS_GOT16", /* name */ |
b34976b6 | 256 | TRUE, /* partial_inplace */ |
d75bc93d TS |
257 | 0x0000ffff, /* src_mask */ |
258 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 259 | FALSE), /* pcrel_offset */ |
d75bc93d | 260 | |
bad36eac DJ |
261 | /* 16 bit PC relative reference. Note that the ABI document has a typo |
262 | and claims R_MIPS_PC16 to be not rightshifted, rendering it useless. | |
263 | We do the right thing here. */ | |
d75bc93d | 264 | HOWTO (R_MIPS_PC16, /* type */ |
bad36eac | 265 | 2, /* rightshift */ |
d75bc93d TS |
266 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
267 | 16, /* bitsize */ | |
b34976b6 | 268 | TRUE, /* pc_relative */ |
d75bc93d TS |
269 | 0, /* bitpos */ |
270 | complain_overflow_signed, /* complain_on_overflow */ | |
30ac9238 | 271 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 272 | "R_MIPS_PC16", /* name */ |
b34976b6 | 273 | TRUE, /* partial_inplace */ |
d75bc93d TS |
274 | 0x0000ffff, /* src_mask */ |
275 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 276 | TRUE), /* pcrel_offset */ |
d75bc93d TS |
277 | |
278 | /* 16 bit call through global offset table. */ | |
279 | HOWTO (R_MIPS_CALL16, /* type */ | |
280 | 0, /* rightshift */ | |
281 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
282 | 16, /* bitsize */ | |
b34976b6 | 283 | FALSE, /* pc_relative */ |
d75bc93d TS |
284 | 0, /* bitpos */ |
285 | complain_overflow_signed, /* complain_on_overflow */ | |
30ac9238 | 286 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 287 | "R_MIPS_CALL16", /* name */ |
b34976b6 | 288 | TRUE, /* partial_inplace */ |
d75bc93d TS |
289 | 0x0000ffff, /* src_mask */ |
290 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 291 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
292 | |
293 | /* 32 bit GP relative reference. */ | |
294 | HOWTO (R_MIPS_GPREL32, /* type */ | |
295 | 0, /* rightshift */ | |
296 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
297 | 32, /* bitsize */ | |
b34976b6 | 298 | FALSE, /* pc_relative */ |
d75bc93d TS |
299 | 0, /* bitpos */ |
300 | complain_overflow_dont, /* complain_on_overflow */ | |
c6e90b02 | 301 | mips_elf_gprel32_reloc, /* special_function */ |
d75bc93d | 302 | "R_MIPS_GPREL32", /* name */ |
b34976b6 | 303 | TRUE, /* partial_inplace */ |
d75bc93d TS |
304 | 0xffffffff, /* src_mask */ |
305 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 306 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
307 | |
308 | /* The remaining relocs are defined on Irix 5, although they are | |
309 | not defined by the ABI. */ | |
310 | EMPTY_HOWTO (13), | |
311 | EMPTY_HOWTO (14), | |
312 | EMPTY_HOWTO (15), | |
313 | ||
314 | /* A 5 bit shift field. */ | |
315 | HOWTO (R_MIPS_SHIFT5, /* type */ | |
316 | 0, /* rightshift */ | |
317 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
318 | 5, /* bitsize */ | |
b34976b6 | 319 | FALSE, /* pc_relative */ |
d75bc93d TS |
320 | 6, /* bitpos */ |
321 | complain_overflow_bitfield, /* complain_on_overflow */ | |
30ac9238 | 322 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 323 | "R_MIPS_SHIFT5", /* name */ |
b34976b6 | 324 | TRUE, /* partial_inplace */ |
d75bc93d TS |
325 | 0x000007c0, /* src_mask */ |
326 | 0x000007c0, /* dst_mask */ | |
b34976b6 | 327 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
328 | |
329 | /* A 6 bit shift field. */ | |
330 | /* FIXME: This is not handled correctly; a special function is | |
331 | needed to put the most significant bit in the right place. */ | |
332 | HOWTO (R_MIPS_SHIFT6, /* type */ | |
333 | 0, /* rightshift */ | |
334 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
335 | 6, /* bitsize */ | |
b34976b6 | 336 | FALSE, /* pc_relative */ |
d75bc93d TS |
337 | 6, /* bitpos */ |
338 | complain_overflow_bitfield, /* complain_on_overflow */ | |
30ac9238 | 339 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 340 | "R_MIPS_SHIFT6", /* name */ |
b34976b6 | 341 | TRUE, /* partial_inplace */ |
d75bc93d TS |
342 | 0x000007c4, /* src_mask */ |
343 | 0x000007c4, /* dst_mask */ | |
b34976b6 | 344 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
345 | |
346 | /* A 64 bit relocation. */ | |
347 | HOWTO (R_MIPS_64, /* type */ | |
348 | 0, /* rightshift */ | |
349 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
350 | 64, /* bitsize */ | |
b34976b6 | 351 | FALSE, /* pc_relative */ |
d75bc93d TS |
352 | 0, /* bitpos */ |
353 | complain_overflow_dont, /* complain_on_overflow */ | |
354 | mips32_64bit_reloc, /* special_function */ | |
355 | "R_MIPS_64", /* name */ | |
b34976b6 | 356 | TRUE, /* partial_inplace */ |
d75bc93d TS |
357 | MINUS_ONE, /* src_mask */ |
358 | MINUS_ONE, /* dst_mask */ | |
b34976b6 | 359 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
360 | |
361 | /* Displacement in the global offset table. */ | |
362 | HOWTO (R_MIPS_GOT_DISP, /* type */ | |
363 | 0, /* rightshift */ | |
364 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
365 | 16, /* bitsize */ | |
b34976b6 | 366 | FALSE, /* pc_relative */ |
d75bc93d TS |
367 | 0, /* bitpos */ |
368 | complain_overflow_signed, /* complain_on_overflow */ | |
30ac9238 | 369 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 370 | "R_MIPS_GOT_DISP", /* name */ |
b34976b6 | 371 | TRUE, /* partial_inplace */ |
d75bc93d TS |
372 | 0x0000ffff, /* src_mask */ |
373 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 374 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
375 | |
376 | /* Displacement to page pointer in the global offset table. */ | |
377 | HOWTO (R_MIPS_GOT_PAGE, /* type */ | |
378 | 0, /* rightshift */ | |
379 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
380 | 16, /* bitsize */ | |
b34976b6 | 381 | FALSE, /* pc_relative */ |
d75bc93d TS |
382 | 0, /* bitpos */ |
383 | complain_overflow_signed, /* complain_on_overflow */ | |
30ac9238 | 384 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 385 | "R_MIPS_GOT_PAGE", /* name */ |
b34976b6 | 386 | TRUE, /* partial_inplace */ |
d75bc93d TS |
387 | 0x0000ffff, /* src_mask */ |
388 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 389 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
390 | |
391 | /* Offset from page pointer in the global offset table. */ | |
392 | HOWTO (R_MIPS_GOT_OFST, /* type */ | |
393 | 0, /* rightshift */ | |
394 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
395 | 16, /* bitsize */ | |
b34976b6 | 396 | FALSE, /* pc_relative */ |
d75bc93d TS |
397 | 0, /* bitpos */ |
398 | complain_overflow_signed, /* complain_on_overflow */ | |
30ac9238 | 399 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 400 | "R_MIPS_GOT_OFST", /* name */ |
b34976b6 | 401 | TRUE, /* partial_inplace */ |
d75bc93d TS |
402 | 0x0000ffff, /* src_mask */ |
403 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 404 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
405 | |
406 | /* High 16 bits of displacement in global offset table. */ | |
407 | HOWTO (R_MIPS_GOT_HI16, /* type */ | |
408 | 0, /* rightshift */ | |
409 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
410 | 16, /* bitsize */ | |
b34976b6 | 411 | FALSE, /* pc_relative */ |
d75bc93d TS |
412 | 0, /* bitpos */ |
413 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 414 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 415 | "R_MIPS_GOT_HI16", /* name */ |
b34976b6 | 416 | TRUE, /* partial_inplace */ |
d75bc93d TS |
417 | 0x0000ffff, /* src_mask */ |
418 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 419 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
420 | |
421 | /* Low 16 bits of displacement in global offset table. */ | |
422 | HOWTO (R_MIPS_GOT_LO16, /* type */ | |
423 | 0, /* rightshift */ | |
424 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
425 | 16, /* bitsize */ | |
b34976b6 | 426 | FALSE, /* pc_relative */ |
d75bc93d TS |
427 | 0, /* bitpos */ |
428 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 429 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 430 | "R_MIPS_GOT_LO16", /* name */ |
b34976b6 | 431 | TRUE, /* partial_inplace */ |
d75bc93d TS |
432 | 0x0000ffff, /* src_mask */ |
433 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 434 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
435 | |
436 | /* 64 bit subtraction. Used in the N32 ABI. */ | |
437 | HOWTO (R_MIPS_SUB, /* type */ | |
438 | 0, /* rightshift */ | |
439 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
440 | 64, /* bitsize */ | |
b34976b6 | 441 | FALSE, /* pc_relative */ |
d75bc93d TS |
442 | 0, /* bitpos */ |
443 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 444 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 445 | "R_MIPS_SUB", /* name */ |
b34976b6 | 446 | TRUE, /* partial_inplace */ |
d75bc93d TS |
447 | MINUS_ONE, /* src_mask */ |
448 | MINUS_ONE, /* dst_mask */ | |
b34976b6 | 449 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
450 | |
451 | /* Used to cause the linker to insert and delete instructions? */ | |
452 | EMPTY_HOWTO (R_MIPS_INSERT_A), | |
453 | EMPTY_HOWTO (R_MIPS_INSERT_B), | |
454 | EMPTY_HOWTO (R_MIPS_DELETE), | |
455 | ||
456 | /* Get the higher value of a 64 bit addend. */ | |
457 | HOWTO (R_MIPS_HIGHER, /* type */ | |
458 | 0, /* rightshift */ | |
459 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
460 | 16, /* bitsize */ | |
b34976b6 | 461 | FALSE, /* pc_relative */ |
d75bc93d TS |
462 | 0, /* bitpos */ |
463 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 464 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 465 | "R_MIPS_HIGHER", /* name */ |
b34976b6 | 466 | TRUE, /* partial_inplace */ |
d75bc93d TS |
467 | 0x0000ffff, /* src_mask */ |
468 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 469 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
470 | |
471 | /* Get the highest value of a 64 bit addend. */ | |
472 | HOWTO (R_MIPS_HIGHEST, /* type */ | |
473 | 0, /* rightshift */ | |
474 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
475 | 16, /* bitsize */ | |
b34976b6 | 476 | FALSE, /* pc_relative */ |
d75bc93d TS |
477 | 0, /* bitpos */ |
478 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 479 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 480 | "R_MIPS_HIGHEST", /* name */ |
b34976b6 | 481 | TRUE, /* partial_inplace */ |
d75bc93d TS |
482 | 0x0000ffff, /* src_mask */ |
483 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 484 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
485 | |
486 | /* High 16 bits of displacement in global offset table. */ | |
487 | HOWTO (R_MIPS_CALL_HI16, /* type */ | |
488 | 0, /* rightshift */ | |
489 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
490 | 16, /* bitsize */ | |
b34976b6 | 491 | FALSE, /* pc_relative */ |
d75bc93d TS |
492 | 0, /* bitpos */ |
493 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 494 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 495 | "R_MIPS_CALL_HI16", /* name */ |
b34976b6 | 496 | TRUE, /* partial_inplace */ |
d75bc93d TS |
497 | 0x0000ffff, /* src_mask */ |
498 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 499 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
500 | |
501 | /* Low 16 bits of displacement in global offset table. */ | |
502 | HOWTO (R_MIPS_CALL_LO16, /* type */ | |
503 | 0, /* rightshift */ | |
504 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
505 | 16, /* bitsize */ | |
b34976b6 | 506 | FALSE, /* pc_relative */ |
d75bc93d TS |
507 | 0, /* bitpos */ |
508 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 509 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 510 | "R_MIPS_CALL_LO16", /* name */ |
b34976b6 | 511 | TRUE, /* partial_inplace */ |
d75bc93d TS |
512 | 0x0000ffff, /* src_mask */ |
513 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 514 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
515 | |
516 | /* Section displacement. */ | |
517 | HOWTO (R_MIPS_SCN_DISP, /* type */ | |
518 | 0, /* rightshift */ | |
519 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
520 | 32, /* bitsize */ | |
b34976b6 | 521 | FALSE, /* pc_relative */ |
d75bc93d TS |
522 | 0, /* bitpos */ |
523 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 524 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 525 | "R_MIPS_SCN_DISP", /* name */ |
b34976b6 | 526 | TRUE, /* partial_inplace */ |
d75bc93d TS |
527 | 0xffffffff, /* src_mask */ |
528 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 529 | FALSE), /* pcrel_offset */ |
d75bc93d TS |
530 | |
531 | EMPTY_HOWTO (R_MIPS_REL16), | |
532 | EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE), | |
533 | EMPTY_HOWTO (R_MIPS_PJUMP), | |
534 | EMPTY_HOWTO (R_MIPS_RELGOT), | |
535 | ||
536 | /* Protected jump conversion. This is an optimization hint. No | |
537 | relocation is required for correctness. */ | |
538 | HOWTO (R_MIPS_JALR, /* type */ | |
539 | 0, /* rightshift */ | |
540 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
541 | 32, /* bitsize */ | |
b34976b6 | 542 | FALSE, /* pc_relative */ |
d75bc93d TS |
543 | 0, /* bitpos */ |
544 | complain_overflow_dont, /* complain_on_overflow */ | |
30ac9238 | 545 | _bfd_mips_elf_generic_reloc, /* special_function */ |
d75bc93d | 546 | "R_MIPS_JALR", /* name */ |
b34976b6 | 547 | FALSE, /* partial_inplace */ |
d75bc93d TS |
548 | 0x00000000, /* src_mask */ |
549 | 0x00000000, /* dst_mask */ | |
b34976b6 | 550 | FALSE), /* pcrel_offset */ |
0f20cc35 DJ |
551 | |
552 | /* TLS GD/LD dynamic relocations. */ | |
553 | HOWTO (R_MIPS_TLS_DTPMOD32, /* type */ | |
554 | 0, /* rightshift */ | |
555 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
556 | 32, /* bitsize */ | |
557 | FALSE, /* pc_relative */ | |
558 | 0, /* bitpos */ | |
559 | complain_overflow_dont, /* complain_on_overflow */ | |
560 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
561 | "R_MIPS_TLS_DTPMOD32", /* name */ | |
562 | TRUE, /* partial_inplace */ | |
563 | 0xffffffff, /* src_mask */ | |
564 | 0xffffffff, /* dst_mask */ | |
565 | FALSE), /* pcrel_offset */ | |
566 | ||
567 | HOWTO (R_MIPS_TLS_DTPREL32, /* type */ | |
568 | 0, /* rightshift */ | |
569 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
570 | 32, /* bitsize */ | |
571 | FALSE, /* pc_relative */ | |
572 | 0, /* bitpos */ | |
573 | complain_overflow_dont, /* complain_on_overflow */ | |
574 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
575 | "R_MIPS_TLS_DTPREL32", /* name */ | |
576 | TRUE, /* partial_inplace */ | |
577 | 0xffffffff, /* src_mask */ | |
578 | 0xffffffff, /* dst_mask */ | |
579 | FALSE), /* pcrel_offset */ | |
580 | ||
581 | EMPTY_HOWTO (R_MIPS_TLS_DTPMOD64), | |
582 | EMPTY_HOWTO (R_MIPS_TLS_DTPREL64), | |
583 | ||
584 | /* TLS general dynamic variable reference. */ | |
585 | HOWTO (R_MIPS_TLS_GD, /* type */ | |
586 | 0, /* rightshift */ | |
587 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
588 | 16, /* bitsize */ | |
589 | FALSE, /* pc_relative */ | |
590 | 0, /* bitpos */ | |
591 | complain_overflow_signed, /* complain_on_overflow */ | |
592 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
593 | "R_MIPS_TLS_GD", /* name */ | |
594 | TRUE, /* partial_inplace */ | |
595 | 0x0000ffff, /* src_mask */ | |
596 | 0x0000ffff, /* dst_mask */ | |
597 | FALSE), /* pcrel_offset */ | |
598 | ||
599 | /* TLS local dynamic variable reference. */ | |
600 | HOWTO (R_MIPS_TLS_LDM, /* type */ | |
601 | 0, /* rightshift */ | |
602 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
603 | 16, /* bitsize */ | |
604 | FALSE, /* pc_relative */ | |
605 | 0, /* bitpos */ | |
606 | complain_overflow_signed, /* complain_on_overflow */ | |
607 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
608 | "R_MIPS_TLS_LDM", /* name */ | |
609 | TRUE, /* partial_inplace */ | |
610 | 0x0000ffff, /* src_mask */ | |
611 | 0x0000ffff, /* dst_mask */ | |
612 | FALSE), /* pcrel_offset */ | |
613 | ||
614 | /* TLS local dynamic offset. */ | |
615 | HOWTO (R_MIPS_TLS_DTPREL_HI16, /* type */ | |
616 | 0, /* rightshift */ | |
617 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
618 | 16, /* bitsize */ | |
619 | FALSE, /* pc_relative */ | |
620 | 0, /* bitpos */ | |
621 | complain_overflow_signed, /* complain_on_overflow */ | |
622 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
623 | "R_MIPS_TLS_DTPREL_HI16", /* name */ | |
624 | TRUE, /* partial_inplace */ | |
625 | 0x0000ffff, /* src_mask */ | |
626 | 0x0000ffff, /* dst_mask */ | |
627 | FALSE), /* pcrel_offset */ | |
628 | ||
629 | /* TLS local dynamic offset. */ | |
630 | HOWTO (R_MIPS_TLS_DTPREL_LO16, /* type */ | |
631 | 0, /* rightshift */ | |
632 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
633 | 16, /* bitsize */ | |
634 | FALSE, /* pc_relative */ | |
635 | 0, /* bitpos */ | |
636 | complain_overflow_signed, /* complain_on_overflow */ | |
637 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
638 | "R_MIPS_TLS_DTPREL_LO16", /* name */ | |
639 | TRUE, /* partial_inplace */ | |
640 | 0x0000ffff, /* src_mask */ | |
641 | 0x0000ffff, /* dst_mask */ | |
642 | FALSE), /* pcrel_offset */ | |
643 | ||
644 | /* TLS thread pointer offset. */ | |
645 | HOWTO (R_MIPS_TLS_GOTTPREL, /* type */ | |
646 | 0, /* rightshift */ | |
647 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
648 | 16, /* bitsize */ | |
649 | FALSE, /* pc_relative */ | |
650 | 0, /* bitpos */ | |
651 | complain_overflow_signed, /* complain_on_overflow */ | |
652 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
653 | "R_MIPS_TLS_GOTTPREL", /* name */ | |
654 | TRUE, /* partial_inplace */ | |
655 | 0x0000ffff, /* src_mask */ | |
656 | 0x0000ffff, /* dst_mask */ | |
657 | FALSE), /* pcrel_offset */ | |
658 | ||
659 | /* TLS IE dynamic relocations. */ | |
660 | HOWTO (R_MIPS_TLS_TPREL32, /* type */ | |
661 | 0, /* rightshift */ | |
662 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
663 | 32, /* bitsize */ | |
664 | FALSE, /* pc_relative */ | |
665 | 0, /* bitpos */ | |
666 | complain_overflow_dont, /* complain_on_overflow */ | |
667 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
668 | "R_MIPS_TLS_TPREL32", /* name */ | |
669 | TRUE, /* partial_inplace */ | |
670 | 0xffffffff, /* src_mask */ | |
671 | 0xffffffff, /* dst_mask */ | |
672 | FALSE), /* pcrel_offset */ | |
673 | ||
674 | EMPTY_HOWTO (R_MIPS_TLS_TPREL64), | |
675 | ||
676 | /* TLS thread pointer offset. */ | |
677 | HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */ | |
678 | 0, /* rightshift */ | |
679 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
680 | 16, /* bitsize */ | |
681 | FALSE, /* pc_relative */ | |
682 | 0, /* bitpos */ | |
683 | complain_overflow_signed, /* complain_on_overflow */ | |
684 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
685 | "R_MIPS_TLS_TPREL_HI16", /* name */ | |
686 | TRUE, /* partial_inplace */ | |
687 | 0x0000ffff, /* src_mask */ | |
688 | 0x0000ffff, /* dst_mask */ | |
689 | FALSE), /* pcrel_offset */ | |
690 | ||
691 | /* TLS thread pointer offset. */ | |
692 | HOWTO (R_MIPS_TLS_TPREL_LO16, /* type */ | |
693 | 0, /* rightshift */ | |
694 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
695 | 16, /* bitsize */ | |
696 | FALSE, /* pc_relative */ | |
697 | 0, /* bitpos */ | |
698 | complain_overflow_signed, /* complain_on_overflow */ | |
699 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
700 | "R_MIPS_TLS_TPREL_LO16", /* name */ | |
701 | TRUE, /* partial_inplace */ | |
702 | 0x0000ffff, /* src_mask */ | |
703 | 0x0000ffff, /* dst_mask */ | |
704 | FALSE), /* pcrel_offset */ | |
d75bc93d TS |
705 | }; |
706 | ||
c6e90b02 TS |
707 | /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This |
708 | is a hack to make the linker think that we need 64 bit values. */ | |
709 | static reloc_howto_type elf_mips_ctor64_howto = | |
710 | HOWTO (R_MIPS_64, /* type */ | |
252b5132 | 711 | 0, /* rightshift */ |
c6e90b02 | 712 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
252b5132 | 713 | 32, /* bitsize */ |
b34976b6 | 714 | FALSE, /* pc_relative */ |
252b5132 | 715 | 0, /* bitpos */ |
c6e90b02 TS |
716 | complain_overflow_signed, /* complain_on_overflow */ |
717 | mips32_64bit_reloc, /* special_function */ | |
718 | "R_MIPS_64", /* name */ | |
b34976b6 | 719 | TRUE, /* partial_inplace */ |
c6e90b02 | 720 | 0xffffffff, /* src_mask */ |
252b5132 | 721 | 0xffffffff, /* dst_mask */ |
b34976b6 | 722 | FALSE); /* pcrel_offset */ |
252b5132 | 723 | |
d6f16593 MR |
724 | static reloc_howto_type elf_mips16_howto_table_rel[] = |
725 | { | |
726 | /* The reloc used for the mips16 jump instruction. */ | |
c6e90b02 | 727 | HOWTO (R_MIPS16_26, /* type */ |
252b5132 RH |
728 | 2, /* rightshift */ |
729 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
730 | 26, /* bitsize */ | |
b34976b6 | 731 | FALSE, /* pc_relative */ |
252b5132 RH |
732 | 0, /* bitpos */ |
733 | complain_overflow_dont, /* complain_on_overflow */ | |
c6e90b02 TS |
734 | /* This needs complex overflow |
735 | detection, because the upper four | |
736 | bits must match the PC. */ | |
737 | mips16_jump_reloc, /* special_function */ | |
738 | "R_MIPS16_26", /* name */ | |
b34976b6 | 739 | TRUE, /* partial_inplace */ |
c6e90b02 TS |
740 | 0x3ffffff, /* src_mask */ |
741 | 0x3ffffff, /* dst_mask */ | |
d6f16593 | 742 | FALSE), /* pcrel_offset */ |
252b5132 | 743 | |
d6f16593 | 744 | /* The reloc used for the mips16 gprel instruction. */ |
c6e90b02 | 745 | HOWTO (R_MIPS16_GPREL, /* type */ |
252b5132 RH |
746 | 0, /* rightshift */ |
747 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
748 | 16, /* bitsize */ | |
b34976b6 | 749 | FALSE, /* pc_relative */ |
252b5132 | 750 | 0, /* bitpos */ |
c6e90b02 TS |
751 | complain_overflow_signed, /* complain_on_overflow */ |
752 | mips16_gprel_reloc, /* special_function */ | |
753 | "R_MIPS16_GPREL", /* name */ | |
b34976b6 | 754 | TRUE, /* partial_inplace */ |
d6f16593 MR |
755 | 0x0000ffff, /* src_mask */ |
756 | 0x0000ffff, /* dst_mask */ | |
757 | FALSE), /* pcrel_offset */ | |
758 | ||
759 | /* A placeholder for MIPS16 reference to global offset table. */ | |
760 | EMPTY_HOWTO (R_MIPS16_GOT16), | |
761 | ||
762 | /* A placeholder for MIPS16 16 bit call through global offset table. */ | |
763 | EMPTY_HOWTO (R_MIPS16_CALL16), | |
764 | ||
765 | /* MIPS16 high 16 bits of symbol value. */ | |
766 | HOWTO (R_MIPS16_HI16, /* type */ | |
767 | 16, /* rightshift */ | |
768 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
769 | 16, /* bitsize */ | |
770 | FALSE, /* pc_relative */ | |
771 | 0, /* bitpos */ | |
772 | complain_overflow_dont, /* complain_on_overflow */ | |
773 | _bfd_mips_elf_hi16_reloc, /* special_function */ | |
774 | "R_MIPS16_HI16", /* name */ | |
775 | TRUE, /* partial_inplace */ | |
776 | 0x0000ffff, /* src_mask */ | |
777 | 0x0000ffff, /* dst_mask */ | |
778 | FALSE), /* pcrel_offset */ | |
779 | ||
780 | /* MIPS16 low 16 bits of symbol value. */ | |
781 | HOWTO (R_MIPS16_LO16, /* type */ | |
782 | 0, /* rightshift */ | |
783 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
784 | 16, /* bitsize */ | |
785 | FALSE, /* pc_relative */ | |
786 | 0, /* bitpos */ | |
787 | complain_overflow_dont, /* complain_on_overflow */ | |
788 | _bfd_mips_elf_lo16_reloc, /* special_function */ | |
789 | "R_MIPS16_LO16", /* name */ | |
790 | TRUE, /* partial_inplace */ | |
791 | 0x0000ffff, /* src_mask */ | |
792 | 0x0000ffff, /* dst_mask */ | |
793 | FALSE), /* pcrel_offset */ | |
794 | }; | |
252b5132 | 795 | |
c6e90b02 TS |
796 | /* 16 bit offset for pc-relative branches. */ |
797 | static reloc_howto_type elf_mips_gnu_rel16_s2 = | |
798 | HOWTO (R_MIPS_GNU_REL16_S2, /* type */ | |
799 | 2, /* rightshift */ | |
252b5132 RH |
800 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
801 | 16, /* bitsize */ | |
b34976b6 | 802 | TRUE, /* pc_relative */ |
252b5132 RH |
803 | 0, /* bitpos */ |
804 | complain_overflow_signed, /* complain_on_overflow */ | |
30ac9238 | 805 | _bfd_mips_elf_generic_reloc, /* special_function */ |
c6e90b02 | 806 | "R_MIPS_GNU_REL16_S2", /* name */ |
b34976b6 | 807 | TRUE, /* partial_inplace */ |
c6e90b02 TS |
808 | 0xffff, /* src_mask */ |
809 | 0xffff, /* dst_mask */ | |
b34976b6 | 810 | TRUE); /* pcrel_offset */ |
252b5132 | 811 | |
092dcd75 CD |
812 | /* 32 bit pc-relative. This was a GNU extension used by embedded-PIC. |
813 | It was co-opted by mips-linux for exception-handling data. It is no | |
814 | longer used, but should continue to be supported by the linker for | |
815 | backward compatibility. (GCC stopped using it in May, 2004.) */ | |
816 | static reloc_howto_type elf_mips_gnu_pcrel32 = | |
817 | HOWTO (R_MIPS_PC32, /* type */ | |
818 | 0, /* rightshift */ | |
819 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
820 | 32, /* bitsize */ | |
821 | TRUE, /* pc_relative */ | |
822 | 0, /* bitpos */ | |
823 | complain_overflow_signed, /* complain_on_overflow */ | |
824 | _bfd_mips_elf_generic_reloc, /* special_function */ | |
825 | "R_MIPS_PC32", /* name */ | |
826 | TRUE, /* partial_inplace */ | |
827 | 0xffffffff, /* src_mask */ | |
828 | 0xffffffff, /* dst_mask */ | |
829 | TRUE); /* pcrel_offset */ | |
830 | ||
c6e90b02 TS |
831 | /* GNU extension to record C++ vtable hierarchy */ |
832 | static reloc_howto_type elf_mips_gnu_vtinherit_howto = | |
833 | HOWTO (R_MIPS_GNU_VTINHERIT, /* type */ | |
252b5132 RH |
834 | 0, /* rightshift */ |
835 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c6e90b02 | 836 | 0, /* bitsize */ |
b34976b6 | 837 | FALSE, /* pc_relative */ |
252b5132 | 838 | 0, /* bitpos */ |
c6e90b02 TS |
839 | complain_overflow_dont, /* complain_on_overflow */ |
840 | NULL, /* special_function */ | |
841 | "R_MIPS_GNU_VTINHERIT", /* name */ | |
b34976b6 | 842 | FALSE, /* partial_inplace */ |
d75bc93d | 843 | 0, /* src_mask */ |
c6e90b02 | 844 | 0, /* dst_mask */ |
b34976b6 | 845 | FALSE); /* pcrel_offset */ |
252b5132 | 846 | |
c6e90b02 TS |
847 | /* GNU extension to record C++ vtable member usage */ |
848 | static reloc_howto_type elf_mips_gnu_vtentry_howto = | |
849 | HOWTO (R_MIPS_GNU_VTENTRY, /* type */ | |
252b5132 RH |
850 | 0, /* rightshift */ |
851 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
c6e90b02 | 852 | 0, /* bitsize */ |
b34976b6 | 853 | FALSE, /* pc_relative */ |
252b5132 RH |
854 | 0, /* bitpos */ |
855 | complain_overflow_dont, /* complain_on_overflow */ | |
c6e90b02 TS |
856 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ |
857 | "R_MIPS_GNU_VTENTRY", /* name */ | |
b34976b6 | 858 | FALSE, /* partial_inplace */ |
d75bc93d | 859 | 0, /* src_mask */ |
c6e90b02 | 860 | 0, /* dst_mask */ |
b34976b6 | 861 | FALSE); /* pcrel_offset */ |
252b5132 | 862 | |
b34976b6 | 863 | /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a |
c6e90b02 | 864 | dangerous relocation. */ |
252b5132 | 865 | |
b34976b6 | 866 | static bfd_boolean |
11a2be4d | 867 | mips_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp) |
252b5132 | 868 | { |
c6e90b02 TS |
869 | unsigned int count; |
870 | asymbol **sym; | |
871 | unsigned int i; | |
e92d460e | 872 | |
c6e90b02 TS |
873 | /* If we've already figured out what GP will be, just return it. */ |
874 | *pgp = _bfd_get_gp_value (output_bfd); | |
875 | if (*pgp) | |
b34976b6 | 876 | return TRUE; |
c6e90b02 TS |
877 | |
878 | count = bfd_get_symcount (output_bfd); | |
879 | sym = bfd_get_outsymbols (output_bfd); | |
252b5132 | 880 | |
c6e90b02 TS |
881 | /* The linker script will have created a symbol named `_gp' with the |
882 | appropriate value. */ | |
11a2be4d | 883 | if (sym == NULL) |
c6e90b02 TS |
884 | i = count; |
885 | else | |
252b5132 | 886 | { |
c6e90b02 TS |
887 | for (i = 0; i < count; i++, sym++) |
888 | { | |
889 | register const char *name; | |
890 | ||
891 | name = bfd_asymbol_name (*sym); | |
892 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
893 | { | |
894 | *pgp = bfd_asymbol_value (*sym); | |
895 | _bfd_set_gp_value (output_bfd, *pgp); | |
896 | break; | |
897 | } | |
898 | } | |
252b5132 RH |
899 | } |
900 | ||
c6e90b02 | 901 | if (i >= count) |
252b5132 | 902 | { |
c6e90b02 TS |
903 | /* Only get the error once. */ |
904 | *pgp = 4; | |
905 | _bfd_set_gp_value (output_bfd, *pgp); | |
b34976b6 | 906 | return FALSE; |
252b5132 RH |
907 | } |
908 | ||
b34976b6 | 909 | return TRUE; |
252b5132 RH |
910 | } |
911 | ||
c6e90b02 TS |
912 | /* We have to figure out the gp value, so that we can adjust the |
913 | symbol value correctly. We look up the symbol _gp in the output | |
914 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
915 | target data. We don't need to adjust the symbol value for an | |
1049f94e | 916 | external symbol if we are producing relocatable output. */ |
252b5132 | 917 | |
c6e90b02 | 918 | static bfd_reloc_status_type |
11a2be4d RS |
919 | mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable, |
920 | char **error_message, bfd_vma *pgp) | |
252b5132 | 921 | { |
c6e90b02 | 922 | if (bfd_is_und_section (symbol->section) |
1049f94e | 923 | && ! relocatable) |
252b5132 | 924 | { |
c6e90b02 TS |
925 | *pgp = 0; |
926 | return bfd_reloc_undefined; | |
252b5132 RH |
927 | } |
928 | ||
c6e90b02 TS |
929 | *pgp = _bfd_get_gp_value (output_bfd); |
930 | if (*pgp == 0 | |
1049f94e | 931 | && (! relocatable |
c6e90b02 | 932 | || (symbol->flags & BSF_SECTION_SYM) != 0)) |
252b5132 | 933 | { |
1049f94e | 934 | if (relocatable) |
252b5132 | 935 | { |
c6e90b02 TS |
936 | /* Make up a value. */ |
937 | *pgp = symbol->section->output_section->vma + 0x4000; | |
938 | _bfd_set_gp_value (output_bfd, *pgp); | |
252b5132 | 939 | } |
c6e90b02 | 940 | else if (!mips_elf_assign_gp (output_bfd, pgp)) |
252b5132 | 941 | { |
c6e90b02 TS |
942 | *error_message = |
943 | (char *) _("GP relative relocation when _gp not defined"); | |
944 | return bfd_reloc_dangerous; | |
252b5132 | 945 | } |
252b5132 RH |
946 | } |
947 | ||
c6e90b02 TS |
948 | return bfd_reloc_ok; |
949 | } | |
252b5132 | 950 | |
c6e90b02 TS |
951 | /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must |
952 | become the offset from the gp register. This function also handles | |
953 | R_MIPS_LITERAL relocations, although those can be handled more | |
954 | cleverly because the entries in the .lit8 and .lit4 sections can be | |
955 | merged. */ | |
252b5132 | 956 | |
c6e90b02 | 957 | bfd_reloc_status_type |
11a2be4d RS |
958 | _bfd_mips_elf32_gprel16_reloc (bfd *abfd, arelent *reloc_entry, |
959 | asymbol *symbol, void *data, | |
960 | asection *input_section, bfd *output_bfd, | |
961 | char **error_message) | |
c6e90b02 | 962 | { |
1049f94e | 963 | bfd_boolean relocatable; |
c6e90b02 TS |
964 | bfd_reloc_status_type ret; |
965 | bfd_vma gp; | |
252b5132 | 966 | |
254f0426 MR |
967 | /* R_MIPS_LITERAL relocations are defined for local symbols only. */ |
968 | if (reloc_entry->howto->type == R_MIPS_LITERAL | |
969 | && output_bfd != NULL | |
970 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
971 | && (symbol->flags & BSF_LOCAL) != 0) | |
972 | { | |
973 | *error_message = (char *) | |
974 | _("literal relocation occurs for an external symbol"); | |
975 | return bfd_reloc_outofrange; | |
976 | } | |
977 | ||
11a2be4d | 978 | if (output_bfd != NULL) |
1049f94e | 979 | relocatable = TRUE; |
c6e90b02 TS |
980 | else |
981 | { | |
1049f94e | 982 | relocatable = FALSE; |
c6e90b02 TS |
983 | output_bfd = symbol->section->output_section->owner; |
984 | } | |
252b5132 | 985 | |
1049f94e | 986 | ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message, |
c6e90b02 TS |
987 | &gp); |
988 | if (ret != bfd_reloc_ok) | |
989 | return ret; | |
252b5132 | 990 | |
c6e90b02 | 991 | return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry, |
1049f94e | 992 | input_section, relocatable, |
c6e90b02 TS |
993 | data, gp); |
994 | } | |
252b5132 | 995 | |
cb7394f2 TS |
996 | /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must |
997 | become the offset from the gp register. */ | |
252b5132 | 998 | |
c6e90b02 | 999 | static bfd_reloc_status_type |
11a2be4d RS |
1000 | mips_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
1001 | void *data, asection *input_section, bfd *output_bfd, | |
1002 | char **error_message) | |
c6e90b02 | 1003 | { |
1049f94e | 1004 | bfd_boolean relocatable; |
c6e90b02 TS |
1005 | bfd_reloc_status_type ret; |
1006 | bfd_vma gp; | |
252b5132 | 1007 | |
765f2ef6 MR |
1008 | /* R_MIPS_GPREL32 relocations are defined for local symbols only. */ |
1009 | if (output_bfd != NULL | |
1010 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1011 | && (symbol->flags & BSF_LOCAL) != 0) | |
1012 | { | |
1013 | *error_message = (char *) | |
1014 | _("32bits gp relative relocation occurs for an external symbol"); | |
1015 | return bfd_reloc_outofrange; | |
1016 | } | |
1017 | ||
11a2be4d | 1018 | if (output_bfd != NULL) |
1049f94e | 1019 | relocatable = TRUE; |
c6e90b02 TS |
1020 | else |
1021 | { | |
1049f94e | 1022 | relocatable = FALSE; |
c6e90b02 | 1023 | output_bfd = symbol->section->output_section->owner; |
c6e90b02 | 1024 | } |
252b5132 | 1025 | |
1049f94e | 1026 | ret = mips_elf_final_gp (output_bfd, symbol, relocatable, |
a7ebbfdf TS |
1027 | error_message, &gp); |
1028 | if (ret != bfd_reloc_ok) | |
1029 | return ret; | |
1030 | ||
c6e90b02 | 1031 | return gprel32_with_gp (abfd, symbol, reloc_entry, input_section, |
1049f94e | 1032 | relocatable, data, gp); |
c6e90b02 | 1033 | } |
252b5132 | 1034 | |
c6e90b02 | 1035 | static bfd_reloc_status_type |
11a2be4d RS |
1036 | gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry, |
1037 | asection *input_section, bfd_boolean relocatable, | |
1038 | void *data, bfd_vma gp) | |
c6e90b02 TS |
1039 | { |
1040 | bfd_vma relocation; | |
a7ebbfdf | 1041 | bfd_vma val; |
252b5132 | 1042 | |
c6e90b02 TS |
1043 | if (bfd_is_com_section (symbol->section)) |
1044 | relocation = 0; | |
1045 | else | |
1046 | relocation = symbol->value; | |
252b5132 | 1047 | |
c6e90b02 TS |
1048 | relocation += symbol->section->output_section->vma; |
1049 | relocation += symbol->section->output_offset; | |
252b5132 | 1050 | |
07515404 | 1051 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
c6e90b02 | 1052 | return bfd_reloc_outofrange; |
252b5132 | 1053 | |
c6e90b02 | 1054 | /* Set val to the offset into the section or symbol. */ |
a7ebbfdf TS |
1055 | val = reloc_entry->addend; |
1056 | ||
1057 | if (reloc_entry->howto->partial_inplace) | |
1058 | val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
252b5132 | 1059 | |
c6e90b02 | 1060 | /* Adjust val for the final section location and GP value. If we |
1049f94e | 1061 | are producing relocatable output, we don't want to do this for |
c6e90b02 | 1062 | an external symbol. */ |
1049f94e | 1063 | if (! relocatable |
c6e90b02 TS |
1064 | || (symbol->flags & BSF_SECTION_SYM) != 0) |
1065 | val += relocation - gp; | |
252b5132 | 1066 | |
a7ebbfdf TS |
1067 | if (reloc_entry->howto->partial_inplace) |
1068 | bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address); | |
1069 | else | |
1070 | reloc_entry->addend = val; | |
c6142e5d | 1071 | |
1049f94e | 1072 | if (relocatable) |
c6e90b02 | 1073 | reloc_entry->address += input_section->output_offset; |
252b5132 | 1074 | |
c6e90b02 | 1075 | return bfd_reloc_ok; |
252b5132 RH |
1076 | } |
1077 | ||
c6e90b02 TS |
1078 | /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are |
1079 | generated when addresses are 64 bits. The upper 32 bits are a simple | |
1080 | sign extension. */ | |
7403cb63 | 1081 | |
c6e90b02 | 1082 | static bfd_reloc_status_type |
30ac9238 RS |
1083 | mips32_64bit_reloc (bfd *abfd, arelent *reloc_entry, |
1084 | asymbol *symbol ATTRIBUTE_UNUSED, | |
1085 | void *data, asection *input_section, | |
1086 | bfd *output_bfd, char **error_message) | |
7403cb63 | 1087 | { |
c6e90b02 TS |
1088 | bfd_reloc_status_type r; |
1089 | arelent reloc32; | |
1090 | unsigned long val; | |
1091 | bfd_size_type addr; | |
7403cb63 | 1092 | |
c6e90b02 TS |
1093 | /* Do a normal 32 bit relocation on the lower 32 bits. */ |
1094 | reloc32 = *reloc_entry; | |
1095 | if (bfd_big_endian (abfd)) | |
1096 | reloc32.address += 4; | |
1097 | reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32]; | |
1098 | r = bfd_perform_relocation (abfd, &reloc32, data, input_section, | |
1099 | output_bfd, error_message); | |
be3ccd9c | 1100 | |
c6e90b02 TS |
1101 | /* Sign extend into the upper 32 bits. */ |
1102 | val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address); | |
1103 | if ((val & 0x80000000) != 0) | |
1104 | val = 0xffffffff; | |
1105 | else | |
1106 | val = 0; | |
1107 | addr = reloc_entry->address; | |
1108 | if (bfd_little_endian (abfd)) | |
1109 | addr += 4; | |
11a2be4d | 1110 | bfd_put_32 (abfd, val, (bfd_byte *) data + addr); |
c6e90b02 TS |
1111 | |
1112 | return r; | |
7403cb63 MM |
1113 | } |
1114 | ||
c6e90b02 | 1115 | /* Handle a mips16 jump. */ |
252b5132 | 1116 | |
c6e90b02 | 1117 | static bfd_reloc_status_type |
11a2be4d RS |
1118 | mips16_jump_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, |
1119 | asymbol *symbol, void *data ATTRIBUTE_UNUSED, | |
1120 | asection *input_section, bfd *output_bfd, | |
1121 | char **error_message ATTRIBUTE_UNUSED) | |
252b5132 | 1122 | { |
11a2be4d | 1123 | if (output_bfd != NULL |
c6e90b02 TS |
1124 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1125 | && reloc_entry->addend == 0) | |
252b5132 | 1126 | { |
c6e90b02 TS |
1127 | reloc_entry->address += input_section->output_offset; |
1128 | return bfd_reloc_ok; | |
1129 | } | |
252b5132 | 1130 | |
c6e90b02 TS |
1131 | /* FIXME. */ |
1132 | { | |
b34976b6 | 1133 | static bfd_boolean warned; |
252b5132 | 1134 | |
c6e90b02 TS |
1135 | if (! warned) |
1136 | (*_bfd_error_handler) | |
1137 | (_("Linking mips16 objects into %s format is not supported"), | |
1138 | bfd_get_target (input_section->output_section->owner)); | |
b34976b6 | 1139 | warned = TRUE; |
c6e90b02 | 1140 | } |
252b5132 | 1141 | |
c6e90b02 TS |
1142 | return bfd_reloc_undefined; |
1143 | } | |
252b5132 | 1144 | |
c6e90b02 | 1145 | /* Handle a mips16 GP relative reloc. */ |
252b5132 | 1146 | |
c6e90b02 | 1147 | static bfd_reloc_status_type |
11a2be4d RS |
1148 | mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
1149 | void *data, asection *input_section, bfd *output_bfd, | |
1150 | char **error_message) | |
c6e90b02 | 1151 | { |
1049f94e | 1152 | bfd_boolean relocatable; |
c6e90b02 | 1153 | bfd_reloc_status_type ret; |
d6f16593 | 1154 | bfd_byte *location; |
c6e90b02 | 1155 | bfd_vma gp; |
252b5132 | 1156 | |
a7ebbfdf TS |
1157 | /* If we're relocating, and this is an external symbol, we don't want |
1158 | to change anything. */ | |
c6e90b02 TS |
1159 | if (output_bfd != NULL |
1160 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
a7ebbfdf | 1161 | && (symbol->flags & BSF_LOCAL) != 0) |
c6e90b02 TS |
1162 | { |
1163 | reloc_entry->address += input_section->output_offset; | |
1164 | return bfd_reloc_ok; | |
1165 | } | |
252b5132 | 1166 | |
c6e90b02 | 1167 | if (output_bfd != NULL) |
1049f94e | 1168 | relocatable = TRUE; |
c6e90b02 TS |
1169 | else |
1170 | { | |
1049f94e | 1171 | relocatable = FALSE; |
c6e90b02 | 1172 | output_bfd = symbol->section->output_section->owner; |
252b5132 RH |
1173 | } |
1174 | ||
1049f94e | 1175 | ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message, |
c6e90b02 TS |
1176 | &gp); |
1177 | if (ret != bfd_reloc_ok) | |
1178 | return ret; | |
252b5132 | 1179 | |
d6f16593 MR |
1180 | location = (bfd_byte *) data + reloc_entry->address; |
1181 | _bfd_mips16_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE, | |
1182 | location); | |
1183 | ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry, | |
1184 | input_section, relocatable, | |
1185 | data, gp); | |
1186 | _bfd_mips16_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable, | |
1187 | location); | |
a7ebbfdf | 1188 | |
d6f16593 | 1189 | return ret; |
c6e90b02 | 1190 | } |
7403cb63 | 1191 | |
c6e90b02 | 1192 | /* A mapping from BFD reloc types to MIPS ELF reloc types. */ |
252b5132 | 1193 | |
c6e90b02 | 1194 | struct elf_reloc_map { |
cb7394f2 TS |
1195 | bfd_reloc_code_real_type bfd_val; |
1196 | enum elf_mips_reloc_type elf_val; | |
c6e90b02 | 1197 | }; |
252b5132 | 1198 | |
c6e90b02 TS |
1199 | static const struct elf_reloc_map mips_reloc_map[] = |
1200 | { | |
28458e7e | 1201 | { BFD_RELOC_NONE, R_MIPS_NONE }, |
c6e90b02 TS |
1202 | { BFD_RELOC_16, R_MIPS_16 }, |
1203 | { BFD_RELOC_32, R_MIPS_32 }, | |
cb7394f2 | 1204 | /* There is no BFD reloc for R_MIPS_REL32. */ |
c6e90b02 TS |
1205 | { BFD_RELOC_64, R_MIPS_64 }, |
1206 | { BFD_RELOC_MIPS_JMP, R_MIPS_26 }, | |
1207 | { BFD_RELOC_HI16_S, R_MIPS_HI16 }, | |
1208 | { BFD_RELOC_LO16, R_MIPS_LO16 }, | |
1209 | { BFD_RELOC_GPREL16, R_MIPS_GPREL16 }, | |
1210 | { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL }, | |
1211 | { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 }, | |
bad36eac | 1212 | { BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 }, |
c6e90b02 TS |
1213 | { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 }, |
1214 | { BFD_RELOC_GPREL32, R_MIPS_GPREL32 }, | |
1215 | { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 }, | |
1216 | { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 }, | |
1217 | { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 }, | |
1218 | { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 }, | |
1219 | { BFD_RELOC_MIPS_SUB, R_MIPS_SUB }, | |
1220 | { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE }, | |
1221 | { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST }, | |
0f20cc35 DJ |
1222 | { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP }, |
1223 | { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 }, | |
1224 | { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 }, | |
1225 | { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 }, | |
1226 | { BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 }, | |
1227 | { BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD }, | |
1228 | { BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM }, | |
1229 | { BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 }, | |
1230 | { BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 }, | |
1231 | { BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL }, | |
1232 | { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 }, | |
1233 | { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 }, | |
1234 | { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 }, | |
1235 | { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 } | |
c6e90b02 | 1236 | }; |
252b5132 | 1237 | |
d6f16593 MR |
1238 | static const struct elf_reloc_map mips16_reloc_map[] = |
1239 | { | |
1240 | { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min }, | |
1241 | { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min }, | |
1242 | { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min }, | |
1243 | { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min }, | |
1244 | }; | |
1245 | ||
c6e90b02 | 1246 | /* Given a BFD reloc type, return a howto structure. */ |
252b5132 | 1247 | |
c6e90b02 | 1248 | static reloc_howto_type * |
11a2be4d | 1249 | bfd_elf32_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) |
252b5132 | 1250 | { |
c6e90b02 | 1251 | unsigned int i; |
cb7394f2 | 1252 | reloc_howto_type *howto_table = elf_mips_howto_table_rel; |
d6f16593 | 1253 | reloc_howto_type *howto16_table = elf_mips16_howto_table_rel; |
252b5132 | 1254 | |
cb7394f2 TS |
1255 | for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); |
1256 | i++) | |
252b5132 | 1257 | { |
cb7394f2 TS |
1258 | if (mips_reloc_map[i].bfd_val == code) |
1259 | return &howto_table[(int) mips_reloc_map[i].elf_val]; | |
252b5132 RH |
1260 | } |
1261 | ||
d6f16593 MR |
1262 | for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map); |
1263 | i++) | |
1264 | { | |
1265 | if (mips16_reloc_map[i].bfd_val == code) | |
1266 | return &howto16_table[(int) mips16_reloc_map[i].elf_val]; | |
1267 | } | |
1268 | ||
c6e90b02 | 1269 | switch (code) |
252b5132 | 1270 | { |
c6e90b02 TS |
1271 | default: |
1272 | bfd_set_error (bfd_error_bad_value); | |
1273 | return NULL; | |
252b5132 | 1274 | |
c6e90b02 TS |
1275 | case BFD_RELOC_CTOR: |
1276 | /* We need to handle BFD_RELOC_CTOR specially. | |
1277 | Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the | |
69931e60 AO |
1278 | size of addresses of the ABI. */ |
1279 | if ((elf_elfheader (abfd)->e_flags & (E_MIPS_ABI_O64 | |
1280 | | E_MIPS_ABI_EABI64)) != 0) | |
c6e90b02 | 1281 | return &elf_mips_ctor64_howto; |
69931e60 AO |
1282 | else |
1283 | return &howto_table[(int) R_MIPS_32]; | |
252b5132 | 1284 | |
c6e90b02 TS |
1285 | case BFD_RELOC_VTABLE_INHERIT: |
1286 | return &elf_mips_gnu_vtinherit_howto; | |
1287 | case BFD_RELOC_VTABLE_ENTRY: | |
1288 | return &elf_mips_gnu_vtentry_howto; | |
092dcd75 CD |
1289 | case BFD_RELOC_32_PCREL: |
1290 | return &elf_mips_gnu_pcrel32; | |
c6e90b02 TS |
1291 | } |
1292 | } | |
252b5132 | 1293 | |
947216bf | 1294 | /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */ |
252b5132 | 1295 | |
c6e90b02 | 1296 | static reloc_howto_type * |
11a2be4d RS |
1297 | mips_elf32_rtype_to_howto (unsigned int r_type, |
1298 | bfd_boolean rela_p ATTRIBUTE_UNUSED) | |
c6e90b02 TS |
1299 | { |
1300 | switch (r_type) | |
1301 | { | |
c6e90b02 TS |
1302 | case R_MIPS_GNU_VTINHERIT: |
1303 | return &elf_mips_gnu_vtinherit_howto; | |
c6e90b02 TS |
1304 | case R_MIPS_GNU_VTENTRY: |
1305 | return &elf_mips_gnu_vtentry_howto; | |
c6e90b02 TS |
1306 | case R_MIPS_GNU_REL16_S2: |
1307 | return &elf_mips_gnu_rel16_s2; | |
092dcd75 CD |
1308 | case R_MIPS_PC32: |
1309 | return &elf_mips_gnu_pcrel32; | |
c6e90b02 | 1310 | default: |
d6f16593 MR |
1311 | if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max) |
1312 | return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min]; | |
c6e90b02 TS |
1313 | BFD_ASSERT (r_type < (unsigned int) R_MIPS_max); |
1314 | return &elf_mips_howto_table_rel[r_type]; | |
1315 | } | |
1316 | } | |
252b5132 | 1317 | |
947216bf | 1318 | /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */ |
252b5132 | 1319 | |
c6e90b02 | 1320 | static void |
11a2be4d | 1321 | mips_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst) |
c6e90b02 | 1322 | { |
0a44bf69 | 1323 | const struct elf_backend_data *bed; |
c6e90b02 | 1324 | unsigned int r_type; |
252b5132 | 1325 | |
c6e90b02 | 1326 | r_type = ELF32_R_TYPE (dst->r_info); |
0a44bf69 RS |
1327 | bed = get_elf_backend_data (abfd); |
1328 | cache_ptr->howto = bed->elf_backend_mips_rtype_to_howto (r_type, FALSE); | |
252b5132 | 1329 | |
c6e90b02 TS |
1330 | /* The addend for a GPREL16 or LITERAL relocation comes from the GP |
1331 | value for the object file. We get the addend now, rather than | |
1332 | when we do the relocation, because the symbol manipulations done | |
1333 | by the linker may cause us to lose track of the input BFD. */ | |
1334 | if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0 | |
1335 | && (r_type == (unsigned int) R_MIPS_GPREL16 | |
1336 | || r_type == (unsigned int) R_MIPS_LITERAL)) | |
1337 | cache_ptr->addend = elf_gp (abfd); | |
1338 | } | |
5499724a | 1339 | |
947216bf | 1340 | /* Given a MIPS Elf_Internal_Rela, fill in an arelent structure. */ |
252b5132 | 1341 | |
c6e90b02 | 1342 | static void |
11a2be4d | 1343 | mips_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst) |
c6e90b02 | 1344 | { |
947216bf | 1345 | mips_info_to_howto_rel (abfd, cache_ptr, dst); |
252b5132 | 1346 | |
c6e90b02 | 1347 | /* If we ever need to do any extra processing with dst->r_addend |
947216bf | 1348 | (the field omitted in an Elf_Internal_Rel) we can do it here. */ |
c6e90b02 TS |
1349 | } |
1350 | \f | |
1351 | /* Determine whether a symbol is global for the purposes of splitting | |
1352 | the symbol table into global symbols and local symbols. At least | |
1353 | on Irix 5, this split must be between section symbols and all other | |
1354 | symbols. On most ELF targets the split is between static symbols | |
1355 | and externally visible symbols. */ | |
252b5132 | 1356 | |
b34976b6 | 1357 | static bfd_boolean |
11a2be4d | 1358 | mips_elf_sym_is_global (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym) |
c6e90b02 TS |
1359 | { |
1360 | if (SGI_COMPAT (abfd)) | |
1361 | return (sym->flags & BSF_SECTION_SYM) == 0; | |
1362 | else | |
1363 | return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0 | |
1364 | || bfd_is_und_section (bfd_get_section (sym)) | |
1365 | || bfd_is_com_section (bfd_get_section (sym))); | |
1366 | } | |
1367 | \f | |
1368 | /* Set the right machine number for a MIPS ELF file. */ | |
7403cb63 | 1369 | |
b34976b6 | 1370 | static bfd_boolean |
11a2be4d | 1371 | mips_elf32_object_p (bfd *abfd) |
c6e90b02 TS |
1372 | { |
1373 | unsigned long mach; | |
103186c6 | 1374 | |
c6e90b02 TS |
1375 | /* Irix 5 and 6 are broken. Object file symbol tables are not always |
1376 | sorted correctly such that local symbols precede global symbols, | |
1377 | and the sh_info field in the symbol table is not always right. */ | |
1378 | if (SGI_COMPAT (abfd)) | |
b34976b6 | 1379 | elf_bad_symtab (abfd) = TRUE; |
103186c6 | 1380 | |
8a397dad | 1381 | if (ABI_N32_P (abfd)) |
b34976b6 | 1382 | return FALSE; |
8a397dad | 1383 | |
c6e90b02 TS |
1384 | mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags); |
1385 | bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach); | |
252b5132 | 1386 | |
b34976b6 | 1387 | return TRUE; |
c6e90b02 TS |
1388 | } |
1389 | \f | |
1390 | /* MIPS ELF local labels start with '$', not 'L'. */ | |
252b5132 | 1391 | |
b34976b6 | 1392 | static bfd_boolean |
11a2be4d | 1393 | mips_elf_is_local_label_name (bfd *abfd, const char *name) |
c6e90b02 TS |
1394 | { |
1395 | if (name[0] == '$') | |
b34976b6 | 1396 | return TRUE; |
252b5132 | 1397 | |
c6e90b02 TS |
1398 | /* On Irix 6, the labels go back to starting with '.', so we accept |
1399 | the generic ELF local label syntax as well. */ | |
1400 | return _bfd_elf_is_local_label_name (abfd, name); | |
252b5132 RH |
1401 | } |
1402 | \f | |
c6e90b02 | 1403 | /* Support for core dump NOTE sections. */ |
b34976b6 | 1404 | static bfd_boolean |
11a2be4d | 1405 | elf32_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
bb0082d6 AM |
1406 | { |
1407 | int offset; | |
eea6121a | 1408 | unsigned int size; |
bb0082d6 AM |
1409 | |
1410 | switch (note->descsz) | |
1411 | { | |
1412 | default: | |
b34976b6 | 1413 | return FALSE; |
bb0082d6 AM |
1414 | |
1415 | case 256: /* Linux/MIPS */ | |
1416 | /* pr_cursig */ | |
1417 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
1418 | ||
1419 | /* pr_pid */ | |
1420 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
1421 | ||
1422 | /* pr_reg */ | |
1423 | offset = 72; | |
eea6121a | 1424 | size = 180; |
bb0082d6 AM |
1425 | |
1426 | break; | |
1427 | } | |
1428 | ||
1429 | /* Make a ".reg/999" section. */ | |
936e320b | 1430 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", |
eea6121a | 1431 | size, note->descpos + offset); |
bb0082d6 AM |
1432 | } |
1433 | ||
b34976b6 | 1434 | static bfd_boolean |
11a2be4d | 1435 | elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
bb0082d6 AM |
1436 | { |
1437 | switch (note->descsz) | |
1438 | { | |
1439 | default: | |
b34976b6 | 1440 | return FALSE; |
bb0082d6 AM |
1441 | |
1442 | case 128: /* Linux/MIPS elf_prpsinfo */ | |
1443 | elf_tdata (abfd)->core_program | |
1444 | = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); | |
1445 | elf_tdata (abfd)->core_command | |
1446 | = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); | |
1447 | } | |
1448 | ||
1449 | /* Note that for some reason, a spurious space is tacked | |
1450 | onto the end of the args in some (at least one anyway) | |
1451 | implementations, so strip it off if it exists. */ | |
1452 | ||
1453 | { | |
1454 | char *command = elf_tdata (abfd)->core_command; | |
1455 | int n = strlen (command); | |
1456 | ||
1457 | if (0 < n && command[n - 1] == ' ') | |
1458 | command[n - 1] = '\0'; | |
1459 | } | |
1460 | ||
b34976b6 | 1461 | return TRUE; |
bb0082d6 AM |
1462 | } |
1463 | \f | |
c6e90b02 TS |
1464 | /* Depending on the target vector we generate some version of Irix |
1465 | executables or "normal" MIPS ELF ABI executables. */ | |
1466 | static irix_compat_t | |
11a2be4d | 1467 | elf32_mips_irix_compat (bfd *abfd) |
c6e90b02 | 1468 | { |
cb7394f2 TS |
1469 | if ((abfd->xvec == &bfd_elf32_bigmips_vec) |
1470 | || (abfd->xvec == &bfd_elf32_littlemips_vec)) | |
c6e90b02 | 1471 | return ict_irix5; |
cb7394f2 TS |
1472 | else |
1473 | return ict_none; | |
c6e90b02 | 1474 | } |
73d074b4 | 1475 | \f |
252b5132 RH |
1476 | /* ECOFF swapping routines. These are used when dealing with the |
1477 | .mdebug section, which is in the ECOFF debugging format. */ | |
be3ccd9c | 1478 | static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { |
252b5132 RH |
1479 | /* Symbol table magic number. */ |
1480 | magicSym, | |
1481 | /* Alignment of debugging information. E.g., 4. */ | |
1482 | 4, | |
1483 | /* Sizes of external symbolic information. */ | |
1484 | sizeof (struct hdr_ext), | |
1485 | sizeof (struct dnr_ext), | |
1486 | sizeof (struct pdr_ext), | |
1487 | sizeof (struct sym_ext), | |
1488 | sizeof (struct opt_ext), | |
1489 | sizeof (struct fdr_ext), | |
1490 | sizeof (struct rfd_ext), | |
1491 | sizeof (struct ext_ext), | |
1492 | /* Functions to swap in external symbolic data. */ | |
1493 | ecoff_swap_hdr_in, | |
1494 | ecoff_swap_dnr_in, | |
1495 | ecoff_swap_pdr_in, | |
1496 | ecoff_swap_sym_in, | |
1497 | ecoff_swap_opt_in, | |
1498 | ecoff_swap_fdr_in, | |
1499 | ecoff_swap_rfd_in, | |
1500 | ecoff_swap_ext_in, | |
1501 | _bfd_ecoff_swap_tir_in, | |
1502 | _bfd_ecoff_swap_rndx_in, | |
1503 | /* Functions to swap out external symbolic data. */ | |
1504 | ecoff_swap_hdr_out, | |
1505 | ecoff_swap_dnr_out, | |
1506 | ecoff_swap_pdr_out, | |
1507 | ecoff_swap_sym_out, | |
1508 | ecoff_swap_opt_out, | |
1509 | ecoff_swap_fdr_out, | |
1510 | ecoff_swap_rfd_out, | |
1511 | ecoff_swap_ext_out, | |
1512 | _bfd_ecoff_swap_tir_out, | |
1513 | _bfd_ecoff_swap_rndx_out, | |
1514 | /* Function to read in symbolic data. */ | |
1515 | _bfd_mips_elf_read_ecoff_info | |
1516 | }; | |
1517 | \f | |
252b5132 RH |
1518 | #define ELF_ARCH bfd_arch_mips |
1519 | #define ELF_MACHINE_CODE EM_MIPS | |
1520 | ||
b34976b6 AM |
1521 | #define elf_backend_collect TRUE |
1522 | #define elf_backend_type_change_ok TRUE | |
1523 | #define elf_backend_can_gc_sections TRUE | |
3f830999 | 1524 | #define elf_info_to_howto mips_info_to_howto_rela |
252b5132 RH |
1525 | #define elf_info_to_howto_rel mips_info_to_howto_rel |
1526 | #define elf_backend_sym_is_global mips_elf_sym_is_global | |
c6e90b02 | 1527 | #define elf_backend_object_p mips_elf32_object_p |
d75bc93d TS |
1528 | #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing |
1529 | #define elf_backend_section_processing _bfd_mips_elf_section_processing | |
103186c6 | 1530 | #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr |
252b5132 RH |
1531 | #define elf_backend_fake_sections _bfd_mips_elf_fake_sections |
1532 | #define elf_backend_section_from_bfd_section \ | |
1533 | _bfd_mips_elf_section_from_bfd_section | |
103186c6 | 1534 | #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook |
d75bc93d TS |
1535 | #define elf_backend_link_output_symbol_hook \ |
1536 | _bfd_mips_elf_link_output_symbol_hook | |
103186c6 MM |
1537 | #define elf_backend_create_dynamic_sections \ |
1538 | _bfd_mips_elf_create_dynamic_sections | |
1539 | #define elf_backend_check_relocs _bfd_mips_elf_check_relocs | |
1540 | #define elf_backend_adjust_dynamic_symbol \ | |
1541 | _bfd_mips_elf_adjust_dynamic_symbol | |
1542 | #define elf_backend_always_size_sections \ | |
1543 | _bfd_mips_elf_always_size_sections | |
1544 | #define elf_backend_size_dynamic_sections \ | |
1545 | _bfd_mips_elf_size_dynamic_sections | |
1546 | #define elf_backend_relocate_section _bfd_mips_elf_relocate_section | |
103186c6 MM |
1547 | #define elf_backend_finish_dynamic_symbol \ |
1548 | _bfd_mips_elf_finish_dynamic_symbol | |
1549 | #define elf_backend_finish_dynamic_sections \ | |
1550 | _bfd_mips_elf_finish_dynamic_sections | |
d75bc93d TS |
1551 | #define elf_backend_final_write_processing \ |
1552 | _bfd_mips_elf_final_write_processing | |
1553 | #define elf_backend_additional_program_headers \ | |
1554 | _bfd_mips_elf_additional_program_headers | |
1555 | #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map | |
103186c6 MM |
1556 | #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook |
1557 | #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook | |
8a20f077 UC |
1558 | #define elf_backend_copy_indirect_symbol \ |
1559 | _bfd_mips_elf_copy_indirect_symbol | |
b305ef96 | 1560 | #define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol |
c6e90b02 TS |
1561 | #define elf_backend_grok_prstatus elf32_mips_grok_prstatus |
1562 | #define elf_backend_grok_psinfo elf32_mips_grok_psinfo | |
d75bc93d TS |
1563 | #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap |
1564 | ||
1565 | #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO) | |
d75bc93d TS |
1566 | #define elf_backend_may_use_rel_p 1 |
1567 | #define elf_backend_may_use_rela_p 0 | |
1568 | #define elf_backend_default_use_rela_p 0 | |
b34976b6 | 1569 | #define elf_backend_sign_extend_vma TRUE |
b305ef96 | 1570 | |
d01414a5 | 1571 | #define elf_backend_discard_info _bfd_mips_elf_discard_info |
73d074b4 | 1572 | #define elf_backend_ignore_discarded_relocs \ |
53bfd6b4 | 1573 | _bfd_mips_elf_ignore_discarded_relocs |
c6e90b02 TS |
1574 | #define elf_backend_mips_irix_compat elf32_mips_irix_compat |
1575 | #define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto | |
252b5132 RH |
1576 | #define bfd_elf32_bfd_is_local_label_name \ |
1577 | mips_elf_is_local_label_name | |
1578 | #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line | |
4ab527b0 | 1579 | #define bfd_elf32_find_inliner_info _bfd_mips_elf_find_inliner_info |
f0abc2a1 | 1580 | #define bfd_elf32_new_section_hook _bfd_mips_elf_new_section_hook |
252b5132 | 1581 | #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents |
c6e90b02 TS |
1582 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
1583 | _bfd_elf_mips_get_relocated_section_contents | |
252b5132 | 1584 | #define bfd_elf32_bfd_link_hash_table_create \ |
103186c6 MM |
1585 | _bfd_mips_elf_link_hash_table_create |
1586 | #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link | |
252b5132 RH |
1587 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
1588 | _bfd_mips_elf_merge_private_bfd_data | |
1589 | #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags | |
1590 | #define bfd_elf32_bfd_print_private_bfd_data \ | |
1591 | _bfd_mips_elf_print_private_bfd_data | |
e364195d | 1592 | |
d75bc93d TS |
1593 | /* Support for SGI-ish mips targets. */ |
1594 | #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec | |
1595 | #define TARGET_LITTLE_NAME "elf32-littlemips" | |
1596 | #define TARGET_BIG_SYM bfd_elf32_bigmips_vec | |
1597 | #define TARGET_BIG_NAME "elf32-bigmips" | |
1598 | ||
4301eeb1 MR |
1599 | /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses |
1600 | a value of 0x1000, and we are compatible. */ | |
1601 | #define ELF_MAXPAGESIZE 0x1000 | |
1602 | ||
d75bc93d | 1603 | #include "elf32-target.h" |
e364195d | 1604 | |
d75bc93d | 1605 | /* Support for traditional mips targets. */ |
e364195d UC |
1606 | #undef TARGET_LITTLE_SYM |
1607 | #undef TARGET_LITTLE_NAME | |
1608 | #undef TARGET_BIG_SYM | |
1609 | #undef TARGET_BIG_NAME | |
1610 | ||
4301eeb1 MR |
1611 | #undef ELF_MAXPAGESIZE |
1612 | ||
e364195d UC |
1613 | #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec |
1614 | #define TARGET_LITTLE_NAME "elf32-tradlittlemips" | |
1615 | #define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec | |
1616 | #define TARGET_BIG_NAME "elf32-tradbigmips" | |
1617 | ||
4301eeb1 MR |
1618 | /* The SVR4 MIPS ABI says that this should be 0x10000, and Linux uses |
1619 | page sizes of up to that limit, so we need to respect it. */ | |
1620 | #define ELF_MAXPAGESIZE 0x10000 | |
1621 | #define elf32_bed elf32_tradbed | |
1622 | ||
c6e90b02 | 1623 | /* Include the target file again for this target. */ |
e364195d | 1624 | #include "elf32-target.h" |
0a44bf69 RS |
1625 | |
1626 | ||
1627 | /* Specific to VxWorks. */ | |
1628 | static reloc_howto_type mips_vxworks_copy_howto_rela = | |
1629 | HOWTO (R_MIPS_COPY, /* type */ | |
1630 | 0, /* rightshift */ | |
1631 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1632 | 32, /* bitsize */ | |
1633 | FALSE, /* pc_relative */ | |
1634 | 0, /* bitpos */ | |
1635 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1636 | bfd_elf_generic_reloc, /* special_function */ | |
1637 | "R_MIPS_COPY", /* name */ | |
1638 | FALSE, /* partial_inplace */ | |
1639 | 0x0, /* src_mask */ | |
1640 | 0x0, /* dst_mask */ | |
1641 | FALSE); /* pcrel_offset */ | |
1642 | ||
1643 | /* Specific to VxWorks. */ | |
1644 | static reloc_howto_type mips_vxworks_jump_slot_howto_rela = | |
1645 | HOWTO (R_MIPS_JUMP_SLOT, /* type */ | |
1646 | 0, /* rightshift */ | |
1647 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1648 | 32, /* bitsize */ | |
1649 | FALSE, /* pc_relative */ | |
1650 | 0, /* bitpos */ | |
1651 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1652 | bfd_elf_generic_reloc, /* special_function */ | |
1653 | "R_MIPS_JUMP_SLOT", /* name */ | |
1654 | FALSE, /* partial_inplace */ | |
1655 | 0x0, /* src_mask */ | |
1656 | 0x0, /* dst_mask */ | |
1657 | FALSE); /* pcrel_offset */ | |
1658 | ||
1659 | /* Implement elf_backend_bfd_reloc_type_lookup for VxWorks. */ | |
1660 | ||
1661 | static reloc_howto_type * | |
1662 | mips_vxworks_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) | |
1663 | { | |
1664 | switch (code) | |
1665 | { | |
1666 | case BFD_RELOC_MIPS_COPY: | |
1667 | return &mips_vxworks_copy_howto_rela; | |
1668 | case BFD_RELOC_MIPS_JUMP_SLOT: | |
1669 | return &mips_vxworks_jump_slot_howto_rela; | |
1670 | default: | |
1671 | return bfd_elf32_bfd_reloc_type_lookup (abfd, code); | |
1672 | } | |
1673 | } | |
1674 | ||
1675 | /* Implement elf_backend_mips_rtype_to_lookup for VxWorks. */ | |
1676 | ||
1677 | static reloc_howto_type * | |
1678 | mips_vxworks_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p) | |
1679 | { | |
1680 | switch (r_type) | |
1681 | { | |
1682 | case R_MIPS_COPY: | |
1683 | return &mips_vxworks_copy_howto_rela; | |
1684 | case R_MIPS_JUMP_SLOT: | |
1685 | return &mips_vxworks_jump_slot_howto_rela; | |
1686 | default: | |
1687 | return mips_elf32_rtype_to_howto (r_type, rela_p); | |
1688 | } | |
1689 | } | |
1690 | ||
1691 | /* Implement elf_backend_final_write_processing for VxWorks. */ | |
1692 | ||
1693 | static void | |
1694 | mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) | |
1695 | { | |
1696 | _bfd_mips_elf_final_write_processing (abfd, linker); | |
1697 | elf_vxworks_final_write_processing (abfd, linker); | |
1698 | } | |
1699 | ||
1700 | #undef TARGET_LITTLE_SYM | |
1701 | #undef TARGET_LITTLE_NAME | |
1702 | #undef TARGET_BIG_SYM | |
1703 | #undef TARGET_BIG_NAME | |
1704 | ||
1705 | #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vxworks_vec | |
1706 | #define TARGET_LITTLE_NAME "elf32-littlemips-vxworks" | |
1707 | #define TARGET_BIG_SYM bfd_elf32_bigmips_vxworks_vec | |
1708 | #define TARGET_BIG_NAME "elf32-bigmips-vxworks" | |
1709 | ||
1710 | #undef elf32_bed | |
1711 | #define elf32_bed elf32_mips_vxworks_bed | |
1712 | ||
1713 | #undef ELF_MAXPAGESIZE | |
1714 | #define ELF_MAXPAGESIZE 0x1000 | |
1715 | ||
1716 | #undef elf_backend_want_got_plt | |
1717 | #define elf_backend_want_got_plt 1 | |
1718 | #undef elf_backend_want_plt_sym | |
1719 | #define elf_backend_want_plt_sym 1 | |
1720 | #undef elf_backend_got_symbol_offset | |
1721 | #define elf_backend_got_symbol_offset 0 | |
1722 | #undef elf_backend_want_dynbss | |
1723 | #define elf_backend_want_dynbss 1 | |
1724 | #undef elf_backend_may_use_rel_p | |
1725 | #define elf_backend_may_use_rel_p 0 | |
1726 | #undef elf_backend_may_use_rela_p | |
1727 | #define elf_backend_may_use_rela_p 1 | |
1728 | #undef elf_backend_default_use_rela_p | |
1729 | #define elf_backend_default_use_rela_p 1 | |
1730 | #undef elf_backend_got_header_size | |
1731 | #define elf_backend_got_header_size (4 * 3) | |
1732 | #undef elf_backend_plt_readonly | |
1733 | #define elf_backend_plt_readonly 1 | |
1734 | ||
1735 | #undef bfd_elf32_bfd_reloc_type_lookup | |
1736 | #define bfd_elf32_bfd_reloc_type_lookup \ | |
1737 | mips_vxworks_bfd_reloc_type_lookup | |
1738 | #undef elf_backend_mips_rtype_to_howto | |
1739 | #define elf_backend_mips_rtype_to_howto \ | |
1740 | mips_vxworks_rtype_to_howto | |
1741 | #undef elf_backend_adjust_dynamic_symbol | |
1742 | #define elf_backend_adjust_dynamic_symbol \ | |
1743 | _bfd_mips_vxworks_adjust_dynamic_symbol | |
1744 | #undef elf_backend_finish_dynamic_symbol | |
1745 | #define elf_backend_finish_dynamic_symbol \ | |
1746 | _bfd_mips_vxworks_finish_dynamic_symbol | |
1747 | #undef bfd_elf32_bfd_link_hash_table_create | |
1748 | #define bfd_elf32_bfd_link_hash_table_create \ | |
1749 | _bfd_mips_vxworks_link_hash_table_create | |
1750 | #undef elf_backend_add_symbol_hook | |
1751 | #define elf_backend_add_symbol_hook \ | |
1752 | elf_vxworks_add_symbol_hook | |
1753 | #undef elf_backend_link_output_symbol_hook | |
1754 | #define elf_backend_link_output_symbol_hook \ | |
1755 | elf_vxworks_link_output_symbol_hook | |
1756 | #undef elf_backend_emit_relocs | |
1757 | #define elf_backend_emit_relocs \ | |
1758 | elf_vxworks_emit_relocs | |
1759 | #undef elf_backend_final_write_processing | |
1760 | #define elf_backend_final_write_processing \ | |
1761 | mips_vxworks_final_write_processing | |
1762 | ||
1763 | #undef elf_backend_additional_program_headers | |
1764 | #undef elf_backend_modify_segment_map | |
1765 | #undef elf_backend_symbol_processing | |
1766 | /* NOTE: elf_backend_rela_normal is not defined for MIPS. */ | |
1767 | ||
1768 | #include "elf32-target.h" |