Commit | Line | Data |
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252b5132 | 1 | /* MIPS-specific support for 64-bit ELF |
f0abc2a1 | 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 |
7898deda | 3 | Free Software Foundation, Inc. |
252b5132 | 4 | Ian Lance Taylor, Cygnus Support |
103186c6 MM |
5 | Linker support added by Mark Mitchell, CodeSourcery, LLC. |
6 | <mark@codesourcery.com> | |
252b5132 RH |
7 | |
8 | This file is part of BFD, the Binary File Descriptor library. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
23 | ||
24 | /* This file supports the 64-bit MIPS ELF ABI. | |
25 | ||
26 | The MIPS 64-bit ELF ABI uses an unusual reloc format. This file | |
27 | overrides the usual ELF reloc handling, and handles reading and | |
36b45482 | 28 | writing the relocations here. */ |
252b5132 | 29 | |
5b6a02bc TS |
30 | /* TODO: Many things are unsupported, even if there is some code for it |
31 | . (which was mostly stolen from elf32-mips.c and slightly adapted). | |
32 | . | |
33 | . - Relocation handling for REL relocs is wrong in many cases and | |
34 | . generally untested. | |
35 | . - Relocation handling for RELA relocs related to GOT support are | |
36 | . also likely to be wrong. | |
a4382ec6 | 37 | . - Support for MIPS16 is untested. |
5b6a02bc TS |
38 | . - Combined relocs with RSS_* entries are unsupported. |
39 | . - The whole GOT handling for NewABI is missing, some parts of | |
c6e90b02 | 40 | . the OldABI version is still lying around and should be removed. |
5b6a02bc TS |
41 | */ |
42 | ||
252b5132 RH |
43 | #include "bfd.h" |
44 | #include "sysdep.h" | |
45 | #include "libbfd.h" | |
46 | #include "aout/ar.h" | |
47 | #include "bfdlink.h" | |
48 | #include "genlink.h" | |
49 | #include "elf-bfd.h" | |
c6e90b02 | 50 | #include "elfxx-mips.h" |
252b5132 RH |
51 | #include "elf/mips.h" |
52 | ||
53 | /* Get the ECOFF swapping routines. The 64-bit ABI is not supposed to | |
54 | use ECOFF. However, we support it anyhow for an easier changeover. */ | |
55 | #include "coff/sym.h" | |
56 | #include "coff/symconst.h" | |
57 | #include "coff/internal.h" | |
58 | #include "coff/ecoff.h" | |
59 | /* The 64 bit versions of the mdebug data structures are in alpha.h. */ | |
60 | #include "coff/alpha.h" | |
23e2c83b | 61 | #define ECOFF_SIGNED_64 |
252b5132 RH |
62 | #include "ecoffswap.h" |
63 | ||
64 | static void mips_elf64_swap_reloc_in | |
11a2be4d | 65 | (bfd *, const Elf64_Mips_External_Rel *, Elf64_Mips_Internal_Rela *); |
252b5132 | 66 | static void mips_elf64_swap_reloca_in |
11a2be4d | 67 | (bfd *, const Elf64_Mips_External_Rela *, Elf64_Mips_Internal_Rela *); |
252b5132 | 68 | static void mips_elf64_swap_reloc_out |
11a2be4d | 69 | (bfd *, const Elf64_Mips_Internal_Rela *, Elf64_Mips_External_Rel *); |
252b5132 | 70 | static void mips_elf64_swap_reloca_out |
11a2be4d | 71 | (bfd *, const Elf64_Mips_Internal_Rela *, Elf64_Mips_External_Rela *); |
c7ac6ff8 | 72 | static void mips_elf64_be_swap_reloc_in |
11a2be4d | 73 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
c7ac6ff8 | 74 | static void mips_elf64_be_swap_reloc_out |
11a2be4d | 75 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
c7ac6ff8 | 76 | static void mips_elf64_be_swap_reloca_in |
11a2be4d | 77 | (bfd *, const bfd_byte *, Elf_Internal_Rela *); |
c7ac6ff8 | 78 | static void mips_elf64_be_swap_reloca_out |
11a2be4d | 79 | (bfd *, const Elf_Internal_Rela *, bfd_byte *); |
c6e90b02 | 80 | static reloc_howto_type *bfd_elf64_bfd_reloc_type_lookup |
11a2be4d | 81 | (bfd *, bfd_reloc_code_real_type); |
c6e90b02 | 82 | static reloc_howto_type *mips_elf64_rtype_to_howto |
11a2be4d | 83 | (unsigned int, bfd_boolean); |
5b6a02bc | 84 | static void mips_elf64_info_to_howto_rel |
11a2be4d | 85 | (bfd *, arelent *, Elf_Internal_Rela *); |
5b6a02bc | 86 | static void mips_elf64_info_to_howto_rela |
11a2be4d | 87 | (bfd *, arelent *, Elf_Internal_Rela *); |
b34976b6 | 88 | static long mips_elf64_get_reloc_upper_bound |
11a2be4d | 89 | (bfd *, asection *); |
fee24f1c | 90 | static long mips_elf64_canonicalize_reloc |
11a2be4d RS |
91 | (bfd *, asection *, arelent **, asymbol **); |
92 | static long mips_elf64_get_dynamic_reloc_upper_bound | |
93 | (bfd *); | |
fee24f1c | 94 | static long mips_elf64_canonicalize_dynamic_reloc |
11a2be4d | 95 | (bfd *, arelent **, asymbol **); |
b34976b6 | 96 | static bfd_boolean mips_elf64_slurp_one_reloc_table |
11a2be4d RS |
97 | (bfd *, asection *, Elf_Internal_Shdr *, bfd_size_type, arelent *, |
98 | asymbol **, bfd_boolean); | |
b34976b6 | 99 | static bfd_boolean mips_elf64_slurp_reloc_table |
11a2be4d | 100 | (bfd *, asection *, asymbol **, bfd_boolean); |
b34976b6 | 101 | static void mips_elf64_write_relocs |
11a2be4d | 102 | (bfd *, asection *, void *); |
5b6a02bc | 103 | static void mips_elf64_write_rel |
11a2be4d | 104 | (bfd *, asection *, Elf_Internal_Shdr *, int *, void *); |
5b6a02bc | 105 | static void mips_elf64_write_rela |
11a2be4d | 106 | (bfd *, asection *, Elf_Internal_Shdr *, int *, void *); |
5b6a02bc | 107 | static bfd_reloc_status_type mips_elf64_hi16_reloc |
11a2be4d | 108 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
5b6a02bc | 109 | static bfd_reloc_status_type mips_elf64_gprel16_reloc |
11a2be4d | 110 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
5b6a02bc | 111 | static bfd_reloc_status_type mips_elf64_literal_reloc |
11a2be4d | 112 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
5b6a02bc | 113 | static bfd_reloc_status_type mips_elf64_gprel32_reloc |
11a2be4d | 114 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
5b6a02bc | 115 | static bfd_reloc_status_type mips_elf64_shift6_reloc |
11a2be4d | 116 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
5b6a02bc | 117 | static bfd_reloc_status_type mips_elf64_got16_reloc |
11a2be4d | 118 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
a4382ec6 | 119 | static bfd_reloc_status_type mips16_jump_reloc |
11a2be4d | 120 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
a4382ec6 | 121 | static bfd_reloc_status_type mips16_gprel_reloc |
11a2be4d | 122 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
b34976b6 | 123 | static bfd_boolean mips_elf64_assign_gp |
11a2be4d | 124 | (bfd *, bfd_vma *); |
5b6a02bc | 125 | static bfd_reloc_status_type mips_elf64_final_gp |
11a2be4d | 126 | (bfd *, asymbol *, bfd_boolean, char **, bfd_vma *); |
b34976b6 | 127 | static bfd_boolean mips_elf64_object_p |
11a2be4d | 128 | (bfd *); |
b34976b6 | 129 | static irix_compat_t elf64_mips_irix_compat |
11a2be4d | 130 | (bfd *); |
d0112f73 | 131 | static bfd_boolean elf64_mips_grok_prstatus |
11a2be4d | 132 | (bfd *, Elf_Internal_Note *); |
d0112f73 | 133 | static bfd_boolean elf64_mips_grok_psinfo |
11a2be4d | 134 | (bfd *, Elf_Internal_Note *); |
c6e90b02 | 135 | |
a4382ec6 TS |
136 | extern const bfd_target bfd_elf64_bigmips_vec; |
137 | extern const bfd_target bfd_elf64_littlemips_vec; | |
252b5132 RH |
138 | |
139 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value | |
140 | from smaller values. Start with zero, widen, *then* decrement. */ | |
141 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
142 | ||
103186c6 MM |
143 | /* The number of local .got entries we reserve. */ |
144 | #define MIPS_RESERVED_GOTNO (2) | |
c6e90b02 | 145 | \f |
252b5132 RH |
146 | /* The relocation table used for SHT_REL sections. */ |
147 | ||
148 | static reloc_howto_type mips_elf64_howto_table_rel[] = | |
149 | { | |
150 | /* No relocation. */ | |
151 | HOWTO (R_MIPS_NONE, /* type */ | |
152 | 0, /* rightshift */ | |
153 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
154 | 0, /* bitsize */ | |
b34976b6 | 155 | FALSE, /* pc_relative */ |
252b5132 RH |
156 | 0, /* bitpos */ |
157 | complain_overflow_dont, /* complain_on_overflow */ | |
158 | bfd_elf_generic_reloc, /* special_function */ | |
159 | "R_MIPS_NONE", /* name */ | |
b34976b6 | 160 | FALSE, /* partial_inplace */ |
252b5132 RH |
161 | 0, /* src_mask */ |
162 | 0, /* dst_mask */ | |
b34976b6 | 163 | FALSE), /* pcrel_offset */ |
252b5132 RH |
164 | |
165 | /* 16 bit relocation. */ | |
166 | HOWTO (R_MIPS_16, /* type */ | |
167 | 0, /* rightshift */ | |
5b6a02bc | 168 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
252b5132 | 169 | 16, /* bitsize */ |
b34976b6 | 170 | FALSE, /* pc_relative */ |
252b5132 | 171 | 0, /* bitpos */ |
5b6a02bc | 172 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
173 | bfd_elf_generic_reloc, /* special_function */ |
174 | "R_MIPS_16", /* name */ | |
b34976b6 | 175 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
176 | 0x0000ffff, /* src_mask */ |
177 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 178 | FALSE), /* pcrel_offset */ |
252b5132 RH |
179 | |
180 | /* 32 bit relocation. */ | |
181 | HOWTO (R_MIPS_32, /* type */ | |
182 | 0, /* rightshift */ | |
183 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
184 | 32, /* bitsize */ | |
b34976b6 | 185 | FALSE, /* pc_relative */ |
252b5132 | 186 | 0, /* bitpos */ |
77bfe34f | 187 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
188 | bfd_elf_generic_reloc, /* special_function */ |
189 | "R_MIPS_32", /* name */ | |
b34976b6 | 190 | TRUE, /* partial_inplace */ |
252b5132 RH |
191 | 0xffffffff, /* src_mask */ |
192 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 193 | FALSE), /* pcrel_offset */ |
252b5132 RH |
194 | |
195 | /* 32 bit symbol relative relocation. */ | |
196 | HOWTO (R_MIPS_REL32, /* type */ | |
197 | 0, /* rightshift */ | |
198 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
199 | 32, /* bitsize */ | |
b34976b6 | 200 | FALSE, /* pc_relative */ |
252b5132 | 201 | 0, /* bitpos */ |
77bfe34f | 202 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
203 | bfd_elf_generic_reloc, /* special_function */ |
204 | "R_MIPS_REL32", /* name */ | |
b34976b6 | 205 | TRUE, /* partial_inplace */ |
252b5132 RH |
206 | 0xffffffff, /* src_mask */ |
207 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 208 | FALSE), /* pcrel_offset */ |
252b5132 | 209 | |
77bfe34f | 210 | /* 26 bit jump address. */ |
252b5132 RH |
211 | HOWTO (R_MIPS_26, /* type */ |
212 | 2, /* rightshift */ | |
213 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
214 | 26, /* bitsize */ | |
b34976b6 | 215 | FALSE, /* pc_relative */ |
252b5132 RH |
216 | 0, /* bitpos */ |
217 | complain_overflow_dont, /* complain_on_overflow */ | |
56fc028e | 218 | /* This needs complex overflow |
77bfe34f | 219 | detection, because the upper 36 |
b401d8e5 | 220 | bits must match the PC + 4. */ |
252b5132 RH |
221 | bfd_elf_generic_reloc, /* special_function */ |
222 | "R_MIPS_26", /* name */ | |
b34976b6 | 223 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
224 | 0x03ffffff, /* src_mask */ |
225 | 0x03ffffff, /* dst_mask */ | |
b34976b6 | 226 | FALSE), /* pcrel_offset */ |
252b5132 | 227 | |
a4382ec6 TS |
228 | /* R_MIPS_HI16 and R_MIPS_LO16 are unsupported for NewABI REL. |
229 | However, the native IRIX6 tools use them, so we try our best. */ | |
230 | ||
252b5132 RH |
231 | /* High 16 bits of symbol value. */ |
232 | HOWTO (R_MIPS_HI16, /* type */ | |
233 | 0, /* rightshift */ | |
234 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
235 | 16, /* bitsize */ | |
b34976b6 | 236 | FALSE, /* pc_relative */ |
252b5132 RH |
237 | 0, /* bitpos */ |
238 | complain_overflow_dont, /* complain_on_overflow */ | |
a4382ec6 | 239 | mips_elf64_hi16_reloc, /* special_function */ |
252b5132 | 240 | "R_MIPS_HI16", /* name */ |
b34976b6 | 241 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
242 | 0x0000ffff, /* src_mask */ |
243 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 244 | FALSE), /* pcrel_offset */ |
252b5132 RH |
245 | |
246 | /* Low 16 bits of symbol value. */ | |
247 | HOWTO (R_MIPS_LO16, /* type */ | |
248 | 0, /* rightshift */ | |
249 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
250 | 16, /* bitsize */ | |
b34976b6 | 251 | FALSE, /* pc_relative */ |
252b5132 RH |
252 | 0, /* bitpos */ |
253 | complain_overflow_dont, /* complain_on_overflow */ | |
5b6a02bc | 254 | bfd_elf_generic_reloc, /* special_function */ |
252b5132 | 255 | "R_MIPS_LO16", /* name */ |
b34976b6 | 256 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
257 | 0x0000ffff, /* src_mask */ |
258 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 259 | FALSE), /* pcrel_offset */ |
252b5132 RH |
260 | |
261 | /* GP relative reference. */ | |
262 | HOWTO (R_MIPS_GPREL16, /* type */ | |
263 | 0, /* rightshift */ | |
264 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
265 | 16, /* bitsize */ | |
b34976b6 | 266 | FALSE, /* pc_relative */ |
252b5132 RH |
267 | 0, /* bitpos */ |
268 | complain_overflow_signed, /* complain_on_overflow */ | |
5b6a02bc | 269 | mips_elf64_gprel16_reloc, /* special_function */ |
252b5132 | 270 | "R_MIPS_GPREL16", /* name */ |
b34976b6 | 271 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
272 | 0x0000ffff, /* src_mask */ |
273 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 274 | FALSE), /* pcrel_offset */ |
252b5132 RH |
275 | |
276 | /* Reference to literal section. */ | |
277 | HOWTO (R_MIPS_LITERAL, /* type */ | |
278 | 0, /* rightshift */ | |
279 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
280 | 16, /* bitsize */ | |
b34976b6 | 281 | FALSE, /* pc_relative */ |
252b5132 RH |
282 | 0, /* bitpos */ |
283 | complain_overflow_signed, /* complain_on_overflow */ | |
5b6a02bc | 284 | mips_elf64_literal_reloc, /* special_function */ |
252b5132 | 285 | "R_MIPS_LITERAL", /* name */ |
b34976b6 | 286 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
287 | 0x0000ffff, /* src_mask */ |
288 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 289 | FALSE), /* pcrel_offset */ |
252b5132 RH |
290 | |
291 | /* Reference to global offset table. */ | |
292 | HOWTO (R_MIPS_GOT16, /* type */ | |
293 | 0, /* rightshift */ | |
294 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
295 | 16, /* bitsize */ | |
b34976b6 | 296 | FALSE, /* pc_relative */ |
252b5132 RH |
297 | 0, /* bitpos */ |
298 | complain_overflow_signed, /* complain_on_overflow */ | |
5b6a02bc | 299 | mips_elf64_got16_reloc, /* special_function */ |
252b5132 | 300 | "R_MIPS_GOT16", /* name */ |
b34976b6 | 301 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
302 | 0x0000ffff, /* src_mask */ |
303 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 304 | FALSE), /* pcrel_offset */ |
252b5132 | 305 | |
0b25d3e6 | 306 | /* 16 bit PC relative reference. */ |
252b5132 | 307 | HOWTO (R_MIPS_PC16, /* type */ |
0b25d3e6 | 308 | 0, /* rightshift */ |
252b5132 RH |
309 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
310 | 16, /* bitsize */ | |
b34976b6 | 311 | TRUE, /* pc_relative */ |
252b5132 RH |
312 | 0, /* bitpos */ |
313 | complain_overflow_signed, /* complain_on_overflow */ | |
314 | bfd_elf_generic_reloc, /* special_function */ | |
315 | "R_MIPS_PC16", /* name */ | |
b34976b6 | 316 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
317 | 0x0000ffff, /* src_mask */ |
318 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 319 | TRUE), /* pcrel_offset */ |
252b5132 RH |
320 | |
321 | /* 16 bit call through global offset table. */ | |
252b5132 RH |
322 | HOWTO (R_MIPS_CALL16, /* type */ |
323 | 0, /* rightshift */ | |
324 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
325 | 16, /* bitsize */ | |
b34976b6 | 326 | FALSE, /* pc_relative */ |
252b5132 RH |
327 | 0, /* bitpos */ |
328 | complain_overflow_signed, /* complain_on_overflow */ | |
329 | bfd_elf_generic_reloc, /* special_function */ | |
330 | "R_MIPS_CALL16", /* name */ | |
b34976b6 | 331 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
332 | 0x0000ffff, /* src_mask */ |
333 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 334 | FALSE), /* pcrel_offset */ |
252b5132 RH |
335 | |
336 | /* 32 bit GP relative reference. */ | |
337 | HOWTO (R_MIPS_GPREL32, /* type */ | |
338 | 0, /* rightshift */ | |
339 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
340 | 32, /* bitsize */ | |
b34976b6 | 341 | FALSE, /* pc_relative */ |
252b5132 | 342 | 0, /* bitpos */ |
5b6a02bc TS |
343 | complain_overflow_dont, /* complain_on_overflow */ |
344 | mips_elf64_gprel32_reloc, /* special_function */ | |
252b5132 | 345 | "R_MIPS_GPREL32", /* name */ |
b34976b6 | 346 | TRUE, /* partial_inplace */ |
252b5132 RH |
347 | 0xffffffff, /* src_mask */ |
348 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 349 | FALSE), /* pcrel_offset */ |
252b5132 | 350 | |
a4382ec6 TS |
351 | EMPTY_HOWTO (13), |
352 | EMPTY_HOWTO (14), | |
353 | EMPTY_HOWTO (15), | |
252b5132 RH |
354 | |
355 | /* A 5 bit shift field. */ | |
356 | HOWTO (R_MIPS_SHIFT5, /* type */ | |
357 | 0, /* rightshift */ | |
358 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
359 | 5, /* bitsize */ | |
b34976b6 | 360 | FALSE, /* pc_relative */ |
252b5132 RH |
361 | 6, /* bitpos */ |
362 | complain_overflow_bitfield, /* complain_on_overflow */ | |
363 | bfd_elf_generic_reloc, /* special_function */ | |
364 | "R_MIPS_SHIFT5", /* name */ | |
b34976b6 | 365 | TRUE, /* partial_inplace */ |
252b5132 RH |
366 | 0x000007c0, /* src_mask */ |
367 | 0x000007c0, /* dst_mask */ | |
b34976b6 | 368 | FALSE), /* pcrel_offset */ |
252b5132 RH |
369 | |
370 | /* A 6 bit shift field. */ | |
252b5132 RH |
371 | HOWTO (R_MIPS_SHIFT6, /* type */ |
372 | 0, /* rightshift */ | |
373 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
374 | 6, /* bitsize */ | |
b34976b6 | 375 | FALSE, /* pc_relative */ |
252b5132 RH |
376 | 6, /* bitpos */ |
377 | complain_overflow_bitfield, /* complain_on_overflow */ | |
5b6a02bc | 378 | mips_elf64_shift6_reloc, /* special_function */ |
252b5132 | 379 | "R_MIPS_SHIFT6", /* name */ |
b34976b6 | 380 | TRUE, /* partial_inplace */ |
252b5132 RH |
381 | 0x000007c4, /* src_mask */ |
382 | 0x000007c4, /* dst_mask */ | |
b34976b6 | 383 | FALSE), /* pcrel_offset */ |
252b5132 RH |
384 | |
385 | /* 64 bit relocation. */ | |
386 | HOWTO (R_MIPS_64, /* type */ | |
387 | 0, /* rightshift */ | |
388 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
389 | 64, /* bitsize */ | |
b34976b6 | 390 | FALSE, /* pc_relative */ |
252b5132 | 391 | 0, /* bitpos */ |
77bfe34f | 392 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
393 | bfd_elf_generic_reloc, /* special_function */ |
394 | "R_MIPS_64", /* name */ | |
b34976b6 | 395 | TRUE, /* partial_inplace */ |
252b5132 RH |
396 | MINUS_ONE, /* src_mask */ |
397 | MINUS_ONE, /* dst_mask */ | |
b34976b6 | 398 | FALSE), /* pcrel_offset */ |
252b5132 RH |
399 | |
400 | /* Displacement in the global offset table. */ | |
252b5132 RH |
401 | HOWTO (R_MIPS_GOT_DISP, /* type */ |
402 | 0, /* rightshift */ | |
403 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
404 | 16, /* bitsize */ | |
b34976b6 | 405 | FALSE, /* pc_relative */ |
252b5132 | 406 | 0, /* bitpos */ |
77bfe34f | 407 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
408 | bfd_elf_generic_reloc, /* special_function */ |
409 | "R_MIPS_GOT_DISP", /* name */ | |
b34976b6 | 410 | TRUE, /* partial_inplace */ |
252b5132 RH |
411 | 0x0000ffff, /* src_mask */ |
412 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 413 | FALSE), /* pcrel_offset */ |
252b5132 RH |
414 | |
415 | /* Displacement to page pointer in the global offset table. */ | |
252b5132 RH |
416 | HOWTO (R_MIPS_GOT_PAGE, /* type */ |
417 | 0, /* rightshift */ | |
418 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
419 | 16, /* bitsize */ | |
b34976b6 | 420 | FALSE, /* pc_relative */ |
252b5132 | 421 | 0, /* bitpos */ |
77bfe34f | 422 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
423 | bfd_elf_generic_reloc, /* special_function */ |
424 | "R_MIPS_GOT_PAGE", /* name */ | |
b34976b6 | 425 | TRUE, /* partial_inplace */ |
252b5132 RH |
426 | 0x0000ffff, /* src_mask */ |
427 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 428 | FALSE), /* pcrel_offset */ |
252b5132 RH |
429 | |
430 | /* Offset from page pointer in the global offset table. */ | |
252b5132 RH |
431 | HOWTO (R_MIPS_GOT_OFST, /* type */ |
432 | 0, /* rightshift */ | |
433 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
434 | 16, /* bitsize */ | |
b34976b6 | 435 | FALSE, /* pc_relative */ |
252b5132 | 436 | 0, /* bitpos */ |
77bfe34f | 437 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
438 | bfd_elf_generic_reloc, /* special_function */ |
439 | "R_MIPS_GOT_OFST", /* name */ | |
b34976b6 | 440 | TRUE, /* partial_inplace */ |
252b5132 RH |
441 | 0x0000ffff, /* src_mask */ |
442 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 443 | FALSE), /* pcrel_offset */ |
252b5132 RH |
444 | |
445 | /* High 16 bits of displacement in global offset table. */ | |
252b5132 RH |
446 | HOWTO (R_MIPS_GOT_HI16, /* type */ |
447 | 0, /* rightshift */ | |
448 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
449 | 16, /* bitsize */ | |
b34976b6 | 450 | FALSE, /* pc_relative */ |
252b5132 RH |
451 | 0, /* bitpos */ |
452 | complain_overflow_dont, /* complain_on_overflow */ | |
453 | bfd_elf_generic_reloc, /* special_function */ | |
454 | "R_MIPS_GOT_HI16", /* name */ | |
b34976b6 | 455 | TRUE, /* partial_inplace */ |
252b5132 RH |
456 | 0x0000ffff, /* src_mask */ |
457 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 458 | FALSE), /* pcrel_offset */ |
252b5132 RH |
459 | |
460 | /* Low 16 bits of displacement in global offset table. */ | |
252b5132 RH |
461 | HOWTO (R_MIPS_GOT_LO16, /* type */ |
462 | 0, /* rightshift */ | |
463 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
464 | 16, /* bitsize */ | |
b34976b6 | 465 | FALSE, /* pc_relative */ |
252b5132 RH |
466 | 0, /* bitpos */ |
467 | complain_overflow_dont, /* complain_on_overflow */ | |
468 | bfd_elf_generic_reloc, /* special_function */ | |
469 | "R_MIPS_GOT_LO16", /* name */ | |
b34976b6 | 470 | TRUE, /* partial_inplace */ |
252b5132 RH |
471 | 0x0000ffff, /* src_mask */ |
472 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 473 | FALSE), /* pcrel_offset */ |
252b5132 | 474 | |
4cc11e76 | 475 | /* 64 bit subtraction. */ |
252b5132 RH |
476 | HOWTO (R_MIPS_SUB, /* type */ |
477 | 0, /* rightshift */ | |
478 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
479 | 64, /* bitsize */ | |
b34976b6 | 480 | FALSE, /* pc_relative */ |
252b5132 | 481 | 0, /* bitpos */ |
77bfe34f | 482 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
483 | bfd_elf_generic_reloc, /* special_function */ |
484 | "R_MIPS_SUB", /* name */ | |
b34976b6 | 485 | TRUE, /* partial_inplace */ |
252b5132 RH |
486 | MINUS_ONE, /* src_mask */ |
487 | MINUS_ONE, /* dst_mask */ | |
b34976b6 | 488 | FALSE), /* pcrel_offset */ |
252b5132 RH |
489 | |
490 | /* Insert the addend as an instruction. */ | |
491 | /* FIXME: Not handled correctly. */ | |
492 | HOWTO (R_MIPS_INSERT_A, /* type */ | |
493 | 0, /* rightshift */ | |
77bfe34f TS |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
495 | 32, /* bitsize */ | |
b34976b6 | 496 | FALSE, /* pc_relative */ |
252b5132 RH |
497 | 0, /* bitpos */ |
498 | complain_overflow_dont, /* complain_on_overflow */ | |
499 | bfd_elf_generic_reloc, /* special_function */ | |
500 | "R_MIPS_INSERT_A", /* name */ | |
b34976b6 | 501 | TRUE, /* partial_inplace */ |
77bfe34f TS |
502 | 0xffffffff, /* src_mask */ |
503 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 504 | FALSE), /* pcrel_offset */ |
252b5132 RH |
505 | |
506 | /* Insert the addend as an instruction, and change all relocations | |
507 | to refer to the old instruction at the address. */ | |
508 | /* FIXME: Not handled correctly. */ | |
509 | HOWTO (R_MIPS_INSERT_B, /* type */ | |
510 | 0, /* rightshift */ | |
77bfe34f TS |
511 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
512 | 32, /* bitsize */ | |
b34976b6 | 513 | FALSE, /* pc_relative */ |
252b5132 RH |
514 | 0, /* bitpos */ |
515 | complain_overflow_dont, /* complain_on_overflow */ | |
516 | bfd_elf_generic_reloc, /* special_function */ | |
517 | "R_MIPS_INSERT_B", /* name */ | |
b34976b6 | 518 | TRUE, /* partial_inplace */ |
77bfe34f TS |
519 | 0xffffffff, /* src_mask */ |
520 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 521 | FALSE), /* pcrel_offset */ |
252b5132 RH |
522 | |
523 | /* Delete a 32 bit instruction. */ | |
524 | /* FIXME: Not handled correctly. */ | |
525 | HOWTO (R_MIPS_DELETE, /* type */ | |
526 | 0, /* rightshift */ | |
77bfe34f TS |
527 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
528 | 32, /* bitsize */ | |
b34976b6 | 529 | FALSE, /* pc_relative */ |
252b5132 RH |
530 | 0, /* bitpos */ |
531 | complain_overflow_dont, /* complain_on_overflow */ | |
532 | bfd_elf_generic_reloc, /* special_function */ | |
533 | "R_MIPS_DELETE", /* name */ | |
b34976b6 | 534 | TRUE, /* partial_inplace */ |
77bfe34f TS |
535 | 0xffffffff, /* src_mask */ |
536 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 537 | FALSE), /* pcrel_offset */ |
252b5132 | 538 | |
a4382ec6 TS |
539 | /* The MIPS ELF64 ABI Draft wants us to support these for REL relocations. |
540 | We don't, because | |
541 | a) It means building the addend from a R_MIPS_HIGHEST/R_MIPS_HIGHER/ | |
542 | R_MIPS_HI16/R_MIPS_LO16 sequence with varying ordering, using | |
543 | fallable heuristics. | |
544 | b) No other NewABI toolchain actually emits such relocations. */ | |
545 | EMPTY_HOWTO (R_MIPS_HIGHER), | |
546 | EMPTY_HOWTO (R_MIPS_HIGHEST), | |
252b5132 RH |
547 | |
548 | /* High 16 bits of displacement in global offset table. */ | |
252b5132 RH |
549 | HOWTO (R_MIPS_CALL_HI16, /* type */ |
550 | 0, /* rightshift */ | |
551 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
552 | 16, /* bitsize */ | |
b34976b6 | 553 | FALSE, /* pc_relative */ |
252b5132 RH |
554 | 0, /* bitpos */ |
555 | complain_overflow_dont, /* complain_on_overflow */ | |
556 | bfd_elf_generic_reloc, /* special_function */ | |
557 | "R_MIPS_CALL_HI16", /* name */ | |
b34976b6 | 558 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
559 | 0x0000ffff, /* src_mask */ |
560 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 561 | FALSE), /* pcrel_offset */ |
252b5132 RH |
562 | |
563 | /* Low 16 bits of displacement in global offset table. */ | |
252b5132 RH |
564 | HOWTO (R_MIPS_CALL_LO16, /* type */ |
565 | 0, /* rightshift */ | |
566 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
567 | 16, /* bitsize */ | |
b34976b6 | 568 | FALSE, /* pc_relative */ |
252b5132 RH |
569 | 0, /* bitpos */ |
570 | complain_overflow_dont, /* complain_on_overflow */ | |
571 | bfd_elf_generic_reloc, /* special_function */ | |
572 | "R_MIPS_CALL_LO16", /* name */ | |
b34976b6 | 573 | TRUE, /* partial_inplace */ |
5b6a02bc TS |
574 | 0x0000ffff, /* src_mask */ |
575 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 576 | FALSE), /* pcrel_offset */ |
252b5132 | 577 | |
5b6a02bc | 578 | /* Section displacement, used by an associated event location section. */ |
252b5132 RH |
579 | HOWTO (R_MIPS_SCN_DISP, /* type */ |
580 | 0, /* rightshift */ | |
77bfe34f TS |
581 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
582 | 32, /* bitsize */ | |
b34976b6 | 583 | FALSE, /* pc_relative */ |
252b5132 RH |
584 | 0, /* bitpos */ |
585 | complain_overflow_dont, /* complain_on_overflow */ | |
586 | bfd_elf_generic_reloc, /* special_function */ | |
587 | "R_MIPS_SCN_DISP", /* name */ | |
b34976b6 | 588 | TRUE, /* partial_inplace */ |
77bfe34f TS |
589 | 0xffffffff, /* src_mask */ |
590 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 591 | FALSE), /* pcrel_offset */ |
252b5132 RH |
592 | |
593 | HOWTO (R_MIPS_REL16, /* type */ | |
594 | 0, /* rightshift */ | |
77bfe34f TS |
595 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
596 | 16, /* bitsize */ | |
b34976b6 | 597 | FALSE, /* pc_relative */ |
252b5132 | 598 | 0, /* bitpos */ |
77bfe34f | 599 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
600 | bfd_elf_generic_reloc, /* special_function */ |
601 | "R_MIPS_REL16", /* name */ | |
b34976b6 | 602 | TRUE, /* partial_inplace */ |
77bfe34f TS |
603 | 0xffff, /* src_mask */ |
604 | 0xffff, /* dst_mask */ | |
b34976b6 | 605 | FALSE), /* pcrel_offset */ |
252b5132 | 606 | |
77bfe34f TS |
607 | /* These two are obsolete. */ |
608 | EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE), | |
609 | EMPTY_HOWTO (R_MIPS_PJUMP), | |
252b5132 | 610 | |
5b6a02bc TS |
611 | /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section. |
612 | It must be used for multigot GOT's (and only there). */ | |
252b5132 RH |
613 | HOWTO (R_MIPS_RELGOT, /* type */ |
614 | 0, /* rightshift */ | |
77bfe34f TS |
615 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
616 | 32, /* bitsize */ | |
b34976b6 | 617 | FALSE, /* pc_relative */ |
252b5132 RH |
618 | 0, /* bitpos */ |
619 | complain_overflow_dont, /* complain_on_overflow */ | |
620 | bfd_elf_generic_reloc, /* special_function */ | |
621 | "R_MIPS_RELGOT", /* name */ | |
b34976b6 | 622 | TRUE, /* partial_inplace */ |
77bfe34f TS |
623 | 0xffffffff, /* src_mask */ |
624 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 625 | FALSE), /* pcrel_offset */ |
d2905643 | 626 | |
fe8bc63d | 627 | /* Protected jump conversion. This is an optimization hint. No |
d2905643 MM |
628 | relocation is required for correctness. */ |
629 | HOWTO (R_MIPS_JALR, /* type */ | |
630 | 0, /* rightshift */ | |
77bfe34f | 631 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
5b6a02bc | 632 | 32, /* bitsize */ |
b34976b6 | 633 | FALSE, /* pc_relative */ |
d2905643 MM |
634 | 0, /* bitpos */ |
635 | complain_overflow_dont, /* complain_on_overflow */ | |
636 | bfd_elf_generic_reloc, /* special_function */ | |
637 | "R_MIPS_JALR", /* name */ | |
b34976b6 | 638 | FALSE, /* partial_inplace */ |
77bfe34f | 639 | 0, /* src_mask */ |
5b6a02bc | 640 | 0x00000000, /* dst_mask */ |
b34976b6 | 641 | FALSE), /* pcrel_offset */ |
252b5132 RH |
642 | }; |
643 | ||
644 | /* The relocation table used for SHT_RELA sections. */ | |
645 | ||
646 | static reloc_howto_type mips_elf64_howto_table_rela[] = | |
647 | { | |
648 | /* No relocation. */ | |
649 | HOWTO (R_MIPS_NONE, /* type */ | |
650 | 0, /* rightshift */ | |
651 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
652 | 0, /* bitsize */ | |
b34976b6 | 653 | FALSE, /* pc_relative */ |
252b5132 RH |
654 | 0, /* bitpos */ |
655 | complain_overflow_dont, /* complain_on_overflow */ | |
656 | bfd_elf_generic_reloc, /* special_function */ | |
657 | "R_MIPS_NONE", /* name */ | |
b34976b6 | 658 | FALSE, /* partial_inplace */ |
252b5132 RH |
659 | 0, /* src_mask */ |
660 | 0, /* dst_mask */ | |
b34976b6 | 661 | FALSE), /* pcrel_offset */ |
252b5132 RH |
662 | |
663 | /* 16 bit relocation. */ | |
664 | HOWTO (R_MIPS_16, /* type */ | |
665 | 0, /* rightshift */ | |
5b6a02bc | 666 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
252b5132 | 667 | 16, /* bitsize */ |
b34976b6 | 668 | FALSE, /* pc_relative */ |
252b5132 | 669 | 0, /* bitpos */ |
5b6a02bc | 670 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
671 | bfd_elf_generic_reloc, /* special_function */ |
672 | "R_MIPS_16", /* name */ | |
b34976b6 | 673 | FALSE, /* partial_inplace */ |
252b5132 | 674 | 0, /* src_mask */ |
5b6a02bc | 675 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 676 | FALSE), /* pcrel_offset */ |
252b5132 RH |
677 | |
678 | /* 32 bit relocation. */ | |
679 | HOWTO (R_MIPS_32, /* type */ | |
680 | 0, /* rightshift */ | |
681 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
682 | 32, /* bitsize */ | |
b34976b6 | 683 | FALSE, /* pc_relative */ |
252b5132 | 684 | 0, /* bitpos */ |
77bfe34f | 685 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
686 | bfd_elf_generic_reloc, /* special_function */ |
687 | "R_MIPS_32", /* name */ | |
b34976b6 | 688 | FALSE, /* partial_inplace */ |
252b5132 RH |
689 | 0, /* src_mask */ |
690 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 691 | FALSE), /* pcrel_offset */ |
252b5132 RH |
692 | |
693 | /* 32 bit symbol relative relocation. */ | |
694 | HOWTO (R_MIPS_REL32, /* type */ | |
695 | 0, /* rightshift */ | |
696 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
697 | 32, /* bitsize */ | |
b34976b6 | 698 | FALSE, /* pc_relative */ |
252b5132 | 699 | 0, /* bitpos */ |
77bfe34f | 700 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
701 | bfd_elf_generic_reloc, /* special_function */ |
702 | "R_MIPS_REL32", /* name */ | |
b34976b6 | 703 | FALSE, /* partial_inplace */ |
252b5132 RH |
704 | 0, /* src_mask */ |
705 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 706 | FALSE), /* pcrel_offset */ |
252b5132 | 707 | |
77bfe34f | 708 | /* 26 bit jump address. */ |
252b5132 RH |
709 | HOWTO (R_MIPS_26, /* type */ |
710 | 2, /* rightshift */ | |
711 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
712 | 26, /* bitsize */ | |
b34976b6 | 713 | FALSE, /* pc_relative */ |
252b5132 RH |
714 | 0, /* bitpos */ |
715 | complain_overflow_dont, /* complain_on_overflow */ | |
56fc028e | 716 | /* This needs complex overflow |
77bfe34f | 717 | detection, because the upper 36 |
b401d8e5 | 718 | bits must match the PC + 4. */ |
252b5132 RH |
719 | bfd_elf_generic_reloc, /* special_function */ |
720 | "R_MIPS_26", /* name */ | |
b34976b6 | 721 | FALSE, /* partial_inplace */ |
252b5132 | 722 | 0, /* src_mask */ |
5b6a02bc | 723 | 0x03ffffff, /* dst_mask */ |
b34976b6 | 724 | FALSE), /* pcrel_offset */ |
252b5132 RH |
725 | |
726 | /* High 16 bits of symbol value. */ | |
727 | HOWTO (R_MIPS_HI16, /* type */ | |
728 | 0, /* rightshift */ | |
729 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
730 | 16, /* bitsize */ | |
b34976b6 | 731 | FALSE, /* pc_relative */ |
252b5132 RH |
732 | 0, /* bitpos */ |
733 | complain_overflow_dont, /* complain_on_overflow */ | |
734 | bfd_elf_generic_reloc, /* special_function */ | |
735 | "R_MIPS_HI16", /* name */ | |
b34976b6 | 736 | FALSE, /* partial_inplace */ |
252b5132 | 737 | 0, /* src_mask */ |
5b6a02bc | 738 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 739 | FALSE), /* pcrel_offset */ |
252b5132 RH |
740 | |
741 | /* Low 16 bits of symbol value. */ | |
742 | HOWTO (R_MIPS_LO16, /* type */ | |
743 | 0, /* rightshift */ | |
744 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
745 | 16, /* bitsize */ | |
b34976b6 | 746 | FALSE, /* pc_relative */ |
252b5132 RH |
747 | 0, /* bitpos */ |
748 | complain_overflow_dont, /* complain_on_overflow */ | |
749 | bfd_elf_generic_reloc, /* special_function */ | |
750 | "R_MIPS_LO16", /* name */ | |
b34976b6 | 751 | FALSE, /* partial_inplace */ |
252b5132 | 752 | 0, /* src_mask */ |
5b6a02bc | 753 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 754 | FALSE), /* pcrel_offset */ |
252b5132 RH |
755 | |
756 | /* GP relative reference. */ | |
757 | HOWTO (R_MIPS_GPREL16, /* type */ | |
758 | 0, /* rightshift */ | |
759 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
760 | 16, /* bitsize */ | |
b34976b6 | 761 | FALSE, /* pc_relative */ |
252b5132 RH |
762 | 0, /* bitpos */ |
763 | complain_overflow_signed, /* complain_on_overflow */ | |
a4382ec6 | 764 | mips_elf64_gprel16_reloc, /* special_function */ |
252b5132 | 765 | "R_MIPS_GPREL16", /* name */ |
b34976b6 | 766 | FALSE, /* partial_inplace */ |
252b5132 | 767 | 0, /* src_mask */ |
5b6a02bc | 768 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 769 | FALSE), /* pcrel_offset */ |
252b5132 RH |
770 | |
771 | /* Reference to literal section. */ | |
772 | HOWTO (R_MIPS_LITERAL, /* type */ | |
773 | 0, /* rightshift */ | |
774 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
775 | 16, /* bitsize */ | |
b34976b6 | 776 | FALSE, /* pc_relative */ |
252b5132 RH |
777 | 0, /* bitpos */ |
778 | complain_overflow_signed, /* complain_on_overflow */ | |
5b6a02bc | 779 | mips_elf64_literal_reloc, /* special_function */ |
252b5132 | 780 | "R_MIPS_LITERAL", /* name */ |
b34976b6 | 781 | FALSE, /* partial_inplace */ |
252b5132 | 782 | 0, /* src_mask */ |
5b6a02bc | 783 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 784 | FALSE), /* pcrel_offset */ |
252b5132 RH |
785 | |
786 | /* Reference to global offset table. */ | |
252b5132 RH |
787 | HOWTO (R_MIPS_GOT16, /* type */ |
788 | 0, /* rightshift */ | |
789 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
790 | 16, /* bitsize */ | |
b34976b6 | 791 | FALSE, /* pc_relative */ |
252b5132 RH |
792 | 0, /* bitpos */ |
793 | complain_overflow_signed, /* complain_on_overflow */ | |
a4382ec6 | 794 | mips_elf64_got16_reloc, /* special_function */ |
252b5132 | 795 | "R_MIPS_GOT16", /* name */ |
b34976b6 | 796 | FALSE, /* partial_inplace */ |
252b5132 | 797 | 0, /* src_mask */ |
5b6a02bc | 798 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 799 | FALSE), /* pcrel_offset */ |
252b5132 | 800 | |
0b25d3e6 | 801 | /* 16 bit PC relative reference. */ |
252b5132 | 802 | HOWTO (R_MIPS_PC16, /* type */ |
0b25d3e6 | 803 | 0, /* rightshift */ |
252b5132 RH |
804 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
805 | 16, /* bitsize */ | |
b34976b6 | 806 | TRUE, /* pc_relative */ |
252b5132 RH |
807 | 0, /* bitpos */ |
808 | complain_overflow_signed, /* complain_on_overflow */ | |
809 | bfd_elf_generic_reloc, /* special_function */ | |
810 | "R_MIPS_PC16", /* name */ | |
b34976b6 | 811 | FALSE, /* partial_inplace */ |
252b5132 | 812 | 0, /* src_mask */ |
5b6a02bc | 813 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 814 | TRUE), /* pcrel_offset */ |
252b5132 RH |
815 | |
816 | /* 16 bit call through global offset table. */ | |
252b5132 RH |
817 | HOWTO (R_MIPS_CALL16, /* type */ |
818 | 0, /* rightshift */ | |
819 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
820 | 16, /* bitsize */ | |
b34976b6 | 821 | FALSE, /* pc_relative */ |
252b5132 RH |
822 | 0, /* bitpos */ |
823 | complain_overflow_signed, /* complain_on_overflow */ | |
824 | bfd_elf_generic_reloc, /* special_function */ | |
825 | "R_MIPS_CALL16", /* name */ | |
b34976b6 | 826 | FALSE, /* partial_inplace */ |
252b5132 | 827 | 0, /* src_mask */ |
5b6a02bc | 828 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 829 | FALSE), /* pcrel_offset */ |
252b5132 RH |
830 | |
831 | /* 32 bit GP relative reference. */ | |
832 | HOWTO (R_MIPS_GPREL32, /* type */ | |
833 | 0, /* rightshift */ | |
834 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
835 | 32, /* bitsize */ | |
b34976b6 | 836 | FALSE, /* pc_relative */ |
252b5132 | 837 | 0, /* bitpos */ |
5b6a02bc TS |
838 | complain_overflow_dont, /* complain_on_overflow */ |
839 | mips_elf64_gprel32_reloc, /* special_function */ | |
252b5132 | 840 | "R_MIPS_GPREL32", /* name */ |
b34976b6 | 841 | FALSE, /* partial_inplace */ |
252b5132 RH |
842 | 0, /* src_mask */ |
843 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 844 | FALSE), /* pcrel_offset */ |
252b5132 | 845 | |
a4382ec6 TS |
846 | EMPTY_HOWTO (13), |
847 | EMPTY_HOWTO (14), | |
848 | EMPTY_HOWTO (15), | |
252b5132 RH |
849 | |
850 | /* A 5 bit shift field. */ | |
851 | HOWTO (R_MIPS_SHIFT5, /* type */ | |
852 | 0, /* rightshift */ | |
853 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
854 | 5, /* bitsize */ | |
b34976b6 | 855 | FALSE, /* pc_relative */ |
252b5132 RH |
856 | 6, /* bitpos */ |
857 | complain_overflow_bitfield, /* complain_on_overflow */ | |
858 | bfd_elf_generic_reloc, /* special_function */ | |
859 | "R_MIPS_SHIFT5", /* name */ | |
b34976b6 | 860 | FALSE, /* partial_inplace */ |
252b5132 RH |
861 | 0, /* src_mask */ |
862 | 0x000007c0, /* dst_mask */ | |
b34976b6 | 863 | FALSE), /* pcrel_offset */ |
252b5132 RH |
864 | |
865 | /* A 6 bit shift field. */ | |
252b5132 RH |
866 | HOWTO (R_MIPS_SHIFT6, /* type */ |
867 | 0, /* rightshift */ | |
868 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
869 | 6, /* bitsize */ | |
b34976b6 | 870 | FALSE, /* pc_relative */ |
252b5132 RH |
871 | 6, /* bitpos */ |
872 | complain_overflow_bitfield, /* complain_on_overflow */ | |
5b6a02bc | 873 | mips_elf64_shift6_reloc, /* special_function */ |
252b5132 | 874 | "R_MIPS_SHIFT6", /* name */ |
b34976b6 | 875 | FALSE, /* partial_inplace */ |
252b5132 RH |
876 | 0, /* src_mask */ |
877 | 0x000007c4, /* dst_mask */ | |
b34976b6 | 878 | FALSE), /* pcrel_offset */ |
252b5132 RH |
879 | |
880 | /* 64 bit relocation. */ | |
881 | HOWTO (R_MIPS_64, /* type */ | |
882 | 0, /* rightshift */ | |
883 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
884 | 64, /* bitsize */ | |
b34976b6 | 885 | FALSE, /* pc_relative */ |
252b5132 | 886 | 0, /* bitpos */ |
77bfe34f | 887 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
888 | bfd_elf_generic_reloc, /* special_function */ |
889 | "R_MIPS_64", /* name */ | |
b34976b6 | 890 | FALSE, /* partial_inplace */ |
252b5132 RH |
891 | 0, /* src_mask */ |
892 | MINUS_ONE, /* dst_mask */ | |
b34976b6 | 893 | FALSE), /* pcrel_offset */ |
252b5132 RH |
894 | |
895 | /* Displacement in the global offset table. */ | |
252b5132 RH |
896 | HOWTO (R_MIPS_GOT_DISP, /* type */ |
897 | 0, /* rightshift */ | |
898 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
899 | 16, /* bitsize */ | |
b34976b6 | 900 | FALSE, /* pc_relative */ |
252b5132 | 901 | 0, /* bitpos */ |
77bfe34f | 902 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
903 | bfd_elf_generic_reloc, /* special_function */ |
904 | "R_MIPS_GOT_DISP", /* name */ | |
b34976b6 | 905 | FALSE, /* partial_inplace */ |
252b5132 RH |
906 | 0, /* src_mask */ |
907 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 908 | FALSE), /* pcrel_offset */ |
252b5132 RH |
909 | |
910 | /* Displacement to page pointer in the global offset table. */ | |
252b5132 RH |
911 | HOWTO (R_MIPS_GOT_PAGE, /* type */ |
912 | 0, /* rightshift */ | |
913 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
914 | 16, /* bitsize */ | |
b34976b6 | 915 | FALSE, /* pc_relative */ |
252b5132 | 916 | 0, /* bitpos */ |
77bfe34f | 917 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
918 | bfd_elf_generic_reloc, /* special_function */ |
919 | "R_MIPS_GOT_PAGE", /* name */ | |
b34976b6 | 920 | FALSE, /* partial_inplace */ |
252b5132 RH |
921 | 0, /* src_mask */ |
922 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 923 | FALSE), /* pcrel_offset */ |
252b5132 RH |
924 | |
925 | /* Offset from page pointer in the global offset table. */ | |
252b5132 RH |
926 | HOWTO (R_MIPS_GOT_OFST, /* type */ |
927 | 0, /* rightshift */ | |
928 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
929 | 16, /* bitsize */ | |
b34976b6 | 930 | FALSE, /* pc_relative */ |
252b5132 | 931 | 0, /* bitpos */ |
77bfe34f | 932 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
933 | bfd_elf_generic_reloc, /* special_function */ |
934 | "R_MIPS_GOT_OFST", /* name */ | |
b34976b6 | 935 | FALSE, /* partial_inplace */ |
252b5132 RH |
936 | 0, /* src_mask */ |
937 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 938 | FALSE), /* pcrel_offset */ |
252b5132 RH |
939 | |
940 | /* High 16 bits of displacement in global offset table. */ | |
252b5132 RH |
941 | HOWTO (R_MIPS_GOT_HI16, /* type */ |
942 | 0, /* rightshift */ | |
943 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
944 | 16, /* bitsize */ | |
b34976b6 | 945 | FALSE, /* pc_relative */ |
252b5132 RH |
946 | 0, /* bitpos */ |
947 | complain_overflow_dont, /* complain_on_overflow */ | |
948 | bfd_elf_generic_reloc, /* special_function */ | |
949 | "R_MIPS_GOT_HI16", /* name */ | |
b34976b6 | 950 | FALSE, /* partial_inplace */ |
252b5132 RH |
951 | 0, /* src_mask */ |
952 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 953 | FALSE), /* pcrel_offset */ |
252b5132 RH |
954 | |
955 | /* Low 16 bits of displacement in global offset table. */ | |
252b5132 RH |
956 | HOWTO (R_MIPS_GOT_LO16, /* type */ |
957 | 0, /* rightshift */ | |
958 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
959 | 16, /* bitsize */ | |
b34976b6 | 960 | FALSE, /* pc_relative */ |
252b5132 RH |
961 | 0, /* bitpos */ |
962 | complain_overflow_dont, /* complain_on_overflow */ | |
963 | bfd_elf_generic_reloc, /* special_function */ | |
964 | "R_MIPS_GOT_LO16", /* name */ | |
b34976b6 | 965 | FALSE, /* partial_inplace */ |
252b5132 RH |
966 | 0, /* src_mask */ |
967 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 968 | FALSE), /* pcrel_offset */ |
252b5132 | 969 | |
4cc11e76 | 970 | /* 64 bit subtraction. */ |
252b5132 RH |
971 | HOWTO (R_MIPS_SUB, /* type */ |
972 | 0, /* rightshift */ | |
973 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
974 | 64, /* bitsize */ | |
b34976b6 | 975 | FALSE, /* pc_relative */ |
252b5132 | 976 | 0, /* bitpos */ |
77bfe34f | 977 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
978 | bfd_elf_generic_reloc, /* special_function */ |
979 | "R_MIPS_SUB", /* name */ | |
b34976b6 | 980 | FALSE, /* partial_inplace */ |
252b5132 RH |
981 | 0, /* src_mask */ |
982 | MINUS_ONE, /* dst_mask */ | |
b34976b6 | 983 | FALSE), /* pcrel_offset */ |
252b5132 RH |
984 | |
985 | /* Insert the addend as an instruction. */ | |
986 | /* FIXME: Not handled correctly. */ | |
987 | HOWTO (R_MIPS_INSERT_A, /* type */ | |
988 | 0, /* rightshift */ | |
77bfe34f TS |
989 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
990 | 32, /* bitsize */ | |
b34976b6 | 991 | FALSE, /* pc_relative */ |
252b5132 RH |
992 | 0, /* bitpos */ |
993 | complain_overflow_dont, /* complain_on_overflow */ | |
994 | bfd_elf_generic_reloc, /* special_function */ | |
995 | "R_MIPS_INSERT_A", /* name */ | |
b34976b6 | 996 | FALSE, /* partial_inplace */ |
252b5132 | 997 | 0, /* src_mask */ |
77bfe34f | 998 | 0xffffffff, /* dst_mask */ |
b34976b6 | 999 | FALSE), /* pcrel_offset */ |
252b5132 RH |
1000 | |
1001 | /* Insert the addend as an instruction, and change all relocations | |
1002 | to refer to the old instruction at the address. */ | |
1003 | /* FIXME: Not handled correctly. */ | |
1004 | HOWTO (R_MIPS_INSERT_B, /* type */ | |
1005 | 0, /* rightshift */ | |
77bfe34f TS |
1006 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
1007 | 32, /* bitsize */ | |
b34976b6 | 1008 | FALSE, /* pc_relative */ |
252b5132 RH |
1009 | 0, /* bitpos */ |
1010 | complain_overflow_dont, /* complain_on_overflow */ | |
1011 | bfd_elf_generic_reloc, /* special_function */ | |
1012 | "R_MIPS_INSERT_B", /* name */ | |
b34976b6 | 1013 | FALSE, /* partial_inplace */ |
252b5132 | 1014 | 0, /* src_mask */ |
77bfe34f | 1015 | 0xffffffff, /* dst_mask */ |
b34976b6 | 1016 | FALSE), /* pcrel_offset */ |
252b5132 RH |
1017 | |
1018 | /* Delete a 32 bit instruction. */ | |
1019 | /* FIXME: Not handled correctly. */ | |
1020 | HOWTO (R_MIPS_DELETE, /* type */ | |
1021 | 0, /* rightshift */ | |
77bfe34f TS |
1022 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
1023 | 32, /* bitsize */ | |
b34976b6 | 1024 | FALSE, /* pc_relative */ |
252b5132 RH |
1025 | 0, /* bitpos */ |
1026 | complain_overflow_dont, /* complain_on_overflow */ | |
1027 | bfd_elf_generic_reloc, /* special_function */ | |
1028 | "R_MIPS_DELETE", /* name */ | |
b34976b6 | 1029 | FALSE, /* partial_inplace */ |
252b5132 | 1030 | 0, /* src_mask */ |
77bfe34f | 1031 | 0xffffffff, /* dst_mask */ |
b34976b6 | 1032 | FALSE), /* pcrel_offset */ |
252b5132 RH |
1033 | |
1034 | /* Get the higher value of a 64 bit addend. */ | |
252b5132 RH |
1035 | HOWTO (R_MIPS_HIGHER, /* type */ |
1036 | 0, /* rightshift */ | |
1037 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1038 | 16, /* bitsize */ | |
b34976b6 | 1039 | FALSE, /* pc_relative */ |
252b5132 RH |
1040 | 0, /* bitpos */ |
1041 | complain_overflow_dont, /* complain_on_overflow */ | |
77bfe34f | 1042 | bfd_elf_generic_reloc, /* special_function */ |
252b5132 | 1043 | "R_MIPS_HIGHER", /* name */ |
b34976b6 | 1044 | FALSE, /* partial_inplace */ |
252b5132 | 1045 | 0, /* src_mask */ |
5b6a02bc | 1046 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 1047 | FALSE), /* pcrel_offset */ |
252b5132 RH |
1048 | |
1049 | /* Get the highest value of a 64 bit addend. */ | |
252b5132 RH |
1050 | HOWTO (R_MIPS_HIGHEST, /* type */ |
1051 | 0, /* rightshift */ | |
1052 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1053 | 16, /* bitsize */ | |
b34976b6 | 1054 | FALSE, /* pc_relative */ |
252b5132 RH |
1055 | 0, /* bitpos */ |
1056 | complain_overflow_dont, /* complain_on_overflow */ | |
77bfe34f | 1057 | bfd_elf_generic_reloc, /* special_function */ |
252b5132 | 1058 | "R_MIPS_HIGHEST", /* name */ |
b34976b6 | 1059 | FALSE, /* partial_inplace */ |
252b5132 | 1060 | 0, /* src_mask */ |
5b6a02bc | 1061 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 1062 | FALSE), /* pcrel_offset */ |
252b5132 RH |
1063 | |
1064 | /* High 16 bits of displacement in global offset table. */ | |
252b5132 RH |
1065 | HOWTO (R_MIPS_CALL_HI16, /* type */ |
1066 | 0, /* rightshift */ | |
1067 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1068 | 16, /* bitsize */ | |
b34976b6 | 1069 | FALSE, /* pc_relative */ |
252b5132 RH |
1070 | 0, /* bitpos */ |
1071 | complain_overflow_dont, /* complain_on_overflow */ | |
1072 | bfd_elf_generic_reloc, /* special_function */ | |
1073 | "R_MIPS_CALL_HI16", /* name */ | |
b34976b6 | 1074 | FALSE, /* partial_inplace */ |
252b5132 | 1075 | 0, /* src_mask */ |
5b6a02bc | 1076 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 1077 | FALSE), /* pcrel_offset */ |
252b5132 RH |
1078 | |
1079 | /* Low 16 bits of displacement in global offset table. */ | |
252b5132 RH |
1080 | HOWTO (R_MIPS_CALL_LO16, /* type */ |
1081 | 0, /* rightshift */ | |
1082 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1083 | 16, /* bitsize */ | |
b34976b6 | 1084 | FALSE, /* pc_relative */ |
252b5132 RH |
1085 | 0, /* bitpos */ |
1086 | complain_overflow_dont, /* complain_on_overflow */ | |
1087 | bfd_elf_generic_reloc, /* special_function */ | |
1088 | "R_MIPS_CALL_LO16", /* name */ | |
b34976b6 | 1089 | FALSE, /* partial_inplace */ |
252b5132 | 1090 | 0, /* src_mask */ |
5b6a02bc | 1091 | 0x0000ffff, /* dst_mask */ |
b34976b6 | 1092 | FALSE), /* pcrel_offset */ |
252b5132 | 1093 | |
5b6a02bc | 1094 | /* Section displacement, used by an associated event location section. */ |
252b5132 RH |
1095 | HOWTO (R_MIPS_SCN_DISP, /* type */ |
1096 | 0, /* rightshift */ | |
77bfe34f TS |
1097 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
1098 | 32, /* bitsize */ | |
b34976b6 | 1099 | FALSE, /* pc_relative */ |
252b5132 RH |
1100 | 0, /* bitpos */ |
1101 | complain_overflow_dont, /* complain_on_overflow */ | |
1102 | bfd_elf_generic_reloc, /* special_function */ | |
1103 | "R_MIPS_SCN_DISP", /* name */ | |
b34976b6 | 1104 | FALSE, /* partial_inplace */ |
252b5132 | 1105 | 0, /* src_mask */ |
77bfe34f | 1106 | 0xffffffff, /* dst_mask */ |
b34976b6 | 1107 | FALSE), /* pcrel_offset */ |
252b5132 RH |
1108 | |
1109 | HOWTO (R_MIPS_REL16, /* type */ | |
1110 | 0, /* rightshift */ | |
77bfe34f TS |
1111 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1112 | 16, /* bitsize */ | |
b34976b6 | 1113 | FALSE, /* pc_relative */ |
252b5132 | 1114 | 0, /* bitpos */ |
77bfe34f | 1115 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
1116 | bfd_elf_generic_reloc, /* special_function */ |
1117 | "R_MIPS_REL16", /* name */ | |
b34976b6 | 1118 | FALSE, /* partial_inplace */ |
252b5132 | 1119 | 0, /* src_mask */ |
77bfe34f | 1120 | 0xffff, /* dst_mask */ |
b34976b6 | 1121 | FALSE), /* pcrel_offset */ |
252b5132 | 1122 | |
77bfe34f TS |
1123 | /* These two are obsolete. */ |
1124 | EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE), | |
1125 | EMPTY_HOWTO (R_MIPS_PJUMP), | |
252b5132 | 1126 | |
5b6a02bc TS |
1127 | /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section. |
1128 | It must be used for multigot GOT's (and only there). */ | |
252b5132 RH |
1129 | HOWTO (R_MIPS_RELGOT, /* type */ |
1130 | 0, /* rightshift */ | |
77bfe34f TS |
1131 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
1132 | 32, /* bitsize */ | |
b34976b6 | 1133 | FALSE, /* pc_relative */ |
252b5132 RH |
1134 | 0, /* bitpos */ |
1135 | complain_overflow_dont, /* complain_on_overflow */ | |
1136 | bfd_elf_generic_reloc, /* special_function */ | |
1137 | "R_MIPS_RELGOT", /* name */ | |
b34976b6 | 1138 | FALSE, /* partial_inplace */ |
252b5132 | 1139 | 0, /* src_mask */ |
77bfe34f | 1140 | 0xffffffff, /* dst_mask */ |
b34976b6 | 1141 | FALSE), /* pcrel_offset */ |
d2905643 | 1142 | |
fe8bc63d | 1143 | /* Protected jump conversion. This is an optimization hint. No |
d2905643 MM |
1144 | relocation is required for correctness. */ |
1145 | HOWTO (R_MIPS_JALR, /* type */ | |
1146 | 0, /* rightshift */ | |
77bfe34f | 1147 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
5b6a02bc | 1148 | 32, /* bitsize */ |
b34976b6 | 1149 | FALSE, /* pc_relative */ |
d2905643 MM |
1150 | 0, /* bitpos */ |
1151 | complain_overflow_dont, /* complain_on_overflow */ | |
1152 | bfd_elf_generic_reloc, /* special_function */ | |
1153 | "R_MIPS_JALR", /* name */ | |
b34976b6 | 1154 | FALSE, /* partial_inplace */ |
77bfe34f | 1155 | 0, /* src_mask */ |
5b6a02bc | 1156 | 0x00000000, /* dst_mask */ |
b34976b6 | 1157 | FALSE), /* pcrel_offset */ |
252b5132 | 1158 | }; |
a4382ec6 TS |
1159 | |
1160 | /* The reloc used for the mips16 jump instruction. */ | |
1161 | static reloc_howto_type elf_mips16_jump_howto = | |
1162 | HOWTO (R_MIPS16_26, /* type */ | |
1163 | 2, /* rightshift */ | |
1164 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1165 | 26, /* bitsize */ | |
b34976b6 | 1166 | FALSE, /* pc_relative */ |
a4382ec6 TS |
1167 | 0, /* bitpos */ |
1168 | complain_overflow_dont, /* complain_on_overflow */ | |
1169 | /* This needs complex overflow | |
1170 | detection, because the upper four | |
1171 | bits must match the PC. */ | |
1172 | mips16_jump_reloc, /* special_function */ | |
1173 | "R_MIPS16_26", /* name */ | |
b34976b6 | 1174 | TRUE, /* partial_inplace */ |
a4382ec6 TS |
1175 | 0x3ffffff, /* src_mask */ |
1176 | 0x3ffffff, /* dst_mask */ | |
b34976b6 | 1177 | FALSE); /* pcrel_offset */ |
a4382ec6 TS |
1178 | |
1179 | /* The reloc used for the mips16 gprel instruction. */ | |
1180 | static reloc_howto_type elf_mips16_gprel_howto = | |
1181 | HOWTO (R_MIPS16_GPREL, /* type */ | |
1182 | 0, /* rightshift */ | |
1183 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1184 | 16, /* bitsize */ | |
b34976b6 | 1185 | FALSE, /* pc_relative */ |
a4382ec6 TS |
1186 | 0, /* bitpos */ |
1187 | complain_overflow_signed, /* complain_on_overflow */ | |
1188 | mips16_gprel_reloc, /* special_function */ | |
1189 | "R_MIPS16_GPREL", /* name */ | |
b34976b6 | 1190 | TRUE, /* partial_inplace */ |
a4382ec6 TS |
1191 | 0x07ff001f, /* src_mask */ |
1192 | 0x07ff001f, /* dst_mask */ | |
b34976b6 | 1193 | FALSE); /* pcrel_offset */ |
a4382ec6 TS |
1194 | |
1195 | /* GNU extension to record C++ vtable hierarchy */ | |
1196 | static reloc_howto_type elf_mips_gnu_vtinherit_howto = | |
1197 | HOWTO (R_MIPS_GNU_VTINHERIT, /* type */ | |
1198 | 0, /* rightshift */ | |
1199 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1200 | 0, /* bitsize */ | |
b34976b6 | 1201 | FALSE, /* pc_relative */ |
a4382ec6 TS |
1202 | 0, /* bitpos */ |
1203 | complain_overflow_dont, /* complain_on_overflow */ | |
1204 | NULL, /* special_function */ | |
1205 | "R_MIPS_GNU_VTINHERIT", /* name */ | |
b34976b6 | 1206 | FALSE, /* partial_inplace */ |
a4382ec6 TS |
1207 | 0, /* src_mask */ |
1208 | 0, /* dst_mask */ | |
b34976b6 | 1209 | FALSE); /* pcrel_offset */ |
a4382ec6 TS |
1210 | |
1211 | /* GNU extension to record C++ vtable member usage */ | |
1212 | static reloc_howto_type elf_mips_gnu_vtentry_howto = | |
1213 | HOWTO (R_MIPS_GNU_VTENTRY, /* type */ | |
1214 | 0, /* rightshift */ | |
1215 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1216 | 0, /* bitsize */ | |
b34976b6 | 1217 | FALSE, /* pc_relative */ |
a4382ec6 TS |
1218 | 0, /* bitpos */ |
1219 | complain_overflow_dont, /* complain_on_overflow */ | |
1220 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
1221 | "R_MIPS_GNU_VTENTRY", /* name */ | |
b34976b6 | 1222 | FALSE, /* partial_inplace */ |
a4382ec6 TS |
1223 | 0, /* src_mask */ |
1224 | 0, /* dst_mask */ | |
b34976b6 | 1225 | FALSE); /* pcrel_offset */ |
c6e90b02 | 1226 | \f |
d0c728db TS |
1227 | /* 16 bit offset for pc-relative branches. */ |
1228 | static reloc_howto_type elf_mips_gnu_rel16_s2 = | |
1229 | HOWTO (R_MIPS_GNU_REL16_S2, /* type */ | |
1230 | 2, /* rightshift */ | |
1231 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1232 | 16, /* bitsize */ | |
1233 | TRUE, /* pc_relative */ | |
1234 | 0, /* bitpos */ | |
1235 | complain_overflow_signed, /* complain_on_overflow */ | |
1236 | bfd_elf_generic_reloc, /* special_function */ | |
1237 | "R_MIPS_GNU_REL16_S2", /* name */ | |
1238 | TRUE, /* partial_inplace */ | |
1239 | 0x0000ffff, /* src_mask */ | |
1240 | 0x0000ffff, /* dst_mask */ | |
1241 | TRUE); /* pcrel_offset */ | |
1242 | ||
1243 | /* 16 bit offset for pc-relative branches. */ | |
1244 | static reloc_howto_type elf_mips_gnu_rela16_s2 = | |
1245 | HOWTO (R_MIPS_GNU_REL16_S2, /* type */ | |
1246 | 2, /* rightshift */ | |
1247 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1248 | 16, /* bitsize */ | |
1249 | TRUE, /* pc_relative */ | |
1250 | 0, /* bitpos */ | |
1251 | complain_overflow_signed, /* complain_on_overflow */ | |
1252 | bfd_elf_generic_reloc, /* special_function */ | |
1253 | "R_MIPS_GNU_REL16_S2", /* name */ | |
1254 | FALSE, /* partial_inplace */ | |
1255 | 0, /* src_mask */ | |
1256 | 0x0000ffff, /* dst_mask */ | |
1257 | TRUE); /* pcrel_offset */ | |
1258 | \f | |
252b5132 RH |
1259 | /* Swap in a MIPS 64-bit Rel reloc. */ |
1260 | ||
1261 | static void | |
11a2be4d RS |
1262 | mips_elf64_swap_reloc_in (bfd *abfd, const Elf64_Mips_External_Rel *src, |
1263 | Elf64_Mips_Internal_Rela *dst) | |
252b5132 | 1264 | { |
dc810e39 AM |
1265 | dst->r_offset = H_GET_64 (abfd, src->r_offset); |
1266 | dst->r_sym = H_GET_32 (abfd, src->r_sym); | |
1267 | dst->r_ssym = H_GET_8 (abfd, src->r_ssym); | |
1268 | dst->r_type3 = H_GET_8 (abfd, src->r_type3); | |
1269 | dst->r_type2 = H_GET_8 (abfd, src->r_type2); | |
1270 | dst->r_type = H_GET_8 (abfd, src->r_type); | |
947216bf | 1271 | dst->r_addend = 0; |
252b5132 RH |
1272 | } |
1273 | ||
1274 | /* Swap in a MIPS 64-bit Rela reloc. */ | |
1275 | ||
1276 | static void | |
11a2be4d RS |
1277 | mips_elf64_swap_reloca_in (bfd *abfd, const Elf64_Mips_External_Rela *src, |
1278 | Elf64_Mips_Internal_Rela *dst) | |
252b5132 | 1279 | { |
dc810e39 AM |
1280 | dst->r_offset = H_GET_64 (abfd, src->r_offset); |
1281 | dst->r_sym = H_GET_32 (abfd, src->r_sym); | |
1282 | dst->r_ssym = H_GET_8 (abfd, src->r_ssym); | |
1283 | dst->r_type3 = H_GET_8 (abfd, src->r_type3); | |
1284 | dst->r_type2 = H_GET_8 (abfd, src->r_type2); | |
1285 | dst->r_type = H_GET_8 (abfd, src->r_type); | |
1286 | dst->r_addend = H_GET_S64 (abfd, src->r_addend); | |
252b5132 RH |
1287 | } |
1288 | ||
252b5132 RH |
1289 | /* Swap out a MIPS 64-bit Rel reloc. */ |
1290 | ||
1291 | static void | |
11a2be4d RS |
1292 | mips_elf64_swap_reloc_out (bfd *abfd, const Elf64_Mips_Internal_Rela *src, |
1293 | Elf64_Mips_External_Rel *dst) | |
252b5132 | 1294 | { |
dc810e39 AM |
1295 | H_PUT_64 (abfd, src->r_offset, dst->r_offset); |
1296 | H_PUT_32 (abfd, src->r_sym, dst->r_sym); | |
1297 | H_PUT_8 (abfd, src->r_ssym, dst->r_ssym); | |
1298 | H_PUT_8 (abfd, src->r_type3, dst->r_type3); | |
1299 | H_PUT_8 (abfd, src->r_type2, dst->r_type2); | |
1300 | H_PUT_8 (abfd, src->r_type, dst->r_type); | |
252b5132 RH |
1301 | } |
1302 | ||
252b5132 RH |
1303 | /* Swap out a MIPS 64-bit Rela reloc. */ |
1304 | ||
1305 | static void | |
11a2be4d RS |
1306 | mips_elf64_swap_reloca_out (bfd *abfd, const Elf64_Mips_Internal_Rela *src, |
1307 | Elf64_Mips_External_Rela *dst) | |
252b5132 | 1308 | { |
dc810e39 AM |
1309 | H_PUT_64 (abfd, src->r_offset, dst->r_offset); |
1310 | H_PUT_32 (abfd, src->r_sym, dst->r_sym); | |
1311 | H_PUT_8 (abfd, src->r_ssym, dst->r_ssym); | |
1312 | H_PUT_8 (abfd, src->r_type3, dst->r_type3); | |
1313 | H_PUT_8 (abfd, src->r_type2, dst->r_type2); | |
1314 | H_PUT_8 (abfd, src->r_type, dst->r_type); | |
5b6a02bc | 1315 | H_PUT_S64 (abfd, src->r_addend, dst->r_addend); |
252b5132 RH |
1316 | } |
1317 | ||
c7ac6ff8 MM |
1318 | /* Swap in a MIPS 64-bit Rel reloc. */ |
1319 | ||
1320 | static void | |
11a2be4d RS |
1321 | mips_elf64_be_swap_reloc_in (bfd *abfd, const bfd_byte *src, |
1322 | Elf_Internal_Rela *dst) | |
c7ac6ff8 | 1323 | { |
947216bf | 1324 | Elf64_Mips_Internal_Rela mirel; |
c7ac6ff8 | 1325 | |
fe8bc63d | 1326 | mips_elf64_swap_reloc_in (abfd, |
c7ac6ff8 MM |
1327 | (const Elf64_Mips_External_Rel *) src, |
1328 | &mirel); | |
1329 | ||
1330 | dst[0].r_offset = mirel.r_offset; | |
5b6a02bc | 1331 | dst[0].r_info = ELF64_R_INFO (mirel.r_sym, mirel.r_type); |
947216bf | 1332 | dst[0].r_addend = 0; |
c7ac6ff8 | 1333 | dst[1].r_offset = mirel.r_offset; |
5b6a02bc | 1334 | dst[1].r_info = ELF64_R_INFO (mirel.r_ssym, mirel.r_type2); |
947216bf | 1335 | dst[1].r_addend = 0; |
c7ac6ff8 | 1336 | dst[2].r_offset = mirel.r_offset; |
5b6a02bc | 1337 | dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirel.r_type3); |
947216bf | 1338 | dst[2].r_addend = 0; |
c7ac6ff8 MM |
1339 | } |
1340 | ||
1341 | /* Swap in a MIPS 64-bit Rela reloc. */ | |
1342 | ||
1343 | static void | |
11a2be4d RS |
1344 | mips_elf64_be_swap_reloca_in (bfd *abfd, const bfd_byte *src, |
1345 | Elf_Internal_Rela *dst) | |
c7ac6ff8 MM |
1346 | { |
1347 | Elf64_Mips_Internal_Rela mirela; | |
1348 | ||
fe8bc63d | 1349 | mips_elf64_swap_reloca_in (abfd, |
c7ac6ff8 MM |
1350 | (const Elf64_Mips_External_Rela *) src, |
1351 | &mirela); | |
1352 | ||
1353 | dst[0].r_offset = mirela.r_offset; | |
5b6a02bc | 1354 | dst[0].r_info = ELF64_R_INFO (mirela.r_sym, mirela.r_type); |
c7ac6ff8 MM |
1355 | dst[0].r_addend = mirela.r_addend; |
1356 | dst[1].r_offset = mirela.r_offset; | |
5b6a02bc | 1357 | dst[1].r_info = ELF64_R_INFO (mirela.r_ssym, mirela.r_type2); |
c7ac6ff8 MM |
1358 | dst[1].r_addend = 0; |
1359 | dst[2].r_offset = mirela.r_offset; | |
5b6a02bc | 1360 | dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirela.r_type3); |
c7ac6ff8 MM |
1361 | dst[2].r_addend = 0; |
1362 | } | |
1363 | ||
1364 | /* Swap out a MIPS 64-bit Rel reloc. */ | |
1365 | ||
1366 | static void | |
11a2be4d RS |
1367 | mips_elf64_be_swap_reloc_out (bfd *abfd, const Elf_Internal_Rela *src, |
1368 | bfd_byte *dst) | |
c7ac6ff8 | 1369 | { |
947216bf | 1370 | Elf64_Mips_Internal_Rela mirel; |
c7ac6ff8 | 1371 | |
5b6a02bc TS |
1372 | mirel.r_offset = src[0].r_offset; |
1373 | BFD_ASSERT(src[0].r_offset == src[1].r_offset); | |
b34976b6 | 1374 | #if 0 |
5b6a02bc | 1375 | BFD_ASSERT(src[0].r_offset == src[2].r_offset); |
a902ee94 | 1376 | #endif |
5b6a02bc TS |
1377 | |
1378 | mirel.r_type = ELF64_MIPS_R_TYPE (src[0].r_info); | |
1379 | mirel.r_sym = ELF64_R_SYM (src[0].r_info); | |
a902ee94 | 1380 | mirel.r_type2 = ELF64_MIPS_R_TYPE (src[1].r_info); |
5b6a02bc | 1381 | mirel.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info); |
a902ee94 | 1382 | mirel.r_type3 = ELF64_MIPS_R_TYPE (src[2].r_info); |
c7ac6ff8 | 1383 | |
fe8bc63d | 1384 | mips_elf64_swap_reloc_out (abfd, &mirel, |
c7ac6ff8 MM |
1385 | (Elf64_Mips_External_Rel *) dst); |
1386 | } | |
1387 | ||
1388 | /* Swap out a MIPS 64-bit Rela reloc. */ | |
1389 | ||
1390 | static void | |
11a2be4d RS |
1391 | mips_elf64_be_swap_reloca_out (bfd *abfd, const Elf_Internal_Rela *src, |
1392 | bfd_byte *dst) | |
c7ac6ff8 MM |
1393 | { |
1394 | Elf64_Mips_Internal_Rela mirela; | |
1395 | ||
5b6a02bc TS |
1396 | mirela.r_offset = src[0].r_offset; |
1397 | BFD_ASSERT(src[0].r_offset == src[1].r_offset); | |
1398 | BFD_ASSERT(src[0].r_offset == src[2].r_offset); | |
1399 | ||
1400 | mirela.r_type = ELF64_MIPS_R_TYPE (src[0].r_info); | |
1401 | mirela.r_sym = ELF64_R_SYM (src[0].r_info); | |
1402 | mirela.r_addend = src[0].r_addend; | |
1403 | BFD_ASSERT(src[1].r_addend == 0); | |
1404 | BFD_ASSERT(src[2].r_addend == 0); | |
1405 | ||
47293a4c | 1406 | mirela.r_type2 = ELF64_MIPS_R_TYPE (src[1].r_info); |
5b6a02bc | 1407 | mirela.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info); |
47293a4c | 1408 | mirela.r_type3 = ELF64_MIPS_R_TYPE (src[2].r_info); |
c7ac6ff8 | 1409 | |
fe8bc63d | 1410 | mips_elf64_swap_reloca_out (abfd, &mirela, |
c7ac6ff8 MM |
1411 | (Elf64_Mips_External_Rela *) dst); |
1412 | } | |
c6e90b02 | 1413 | \f |
5b6a02bc | 1414 | /* Do a R_MIPS_HI16 relocation. */ |
252b5132 | 1415 | |
a4382ec6 | 1416 | static bfd_reloc_status_type |
11a2be4d RS |
1417 | mips_elf64_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, |
1418 | asymbol *symbol, void *data ATTRIBUTE_UNUSED, | |
1419 | asection *input_section, bfd *output_bfd, | |
1420 | char **error_message ATTRIBUTE_UNUSED) | |
5b6a02bc TS |
1421 | { |
1422 | /* If we're relocating, and this is an external symbol, we don't | |
1423 | want to change anything. */ | |
11a2be4d | 1424 | if (output_bfd != NULL |
5b6a02bc | 1425 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
a7ebbfdf | 1426 | && (symbol->flags & BSF_LOCAL) != 0) |
252b5132 | 1427 | { |
5b6a02bc TS |
1428 | reloc_entry->address += input_section->output_offset; |
1429 | return bfd_reloc_ok; | |
1430 | } | |
252b5132 | 1431 | |
a7ebbfdf TS |
1432 | if (reloc_entry->howto->partial_inplace) |
1433 | { | |
1434 | if (((reloc_entry->addend & 0xffff) + 0x8000) & ~0xffff) | |
1435 | reloc_entry->addend += 0x8000; | |
1436 | } | |
5b6a02bc TS |
1437 | |
1438 | return bfd_reloc_continue; | |
1439 | } | |
1440 | ||
5b6a02bc TS |
1441 | /* Do a R_MIPS_GOT16 reloc. This is a reloc against the global offset |
1442 | table used for PIC code. If the symbol is an external symbol, the | |
1443 | instruction is modified to contain the offset of the appropriate | |
1444 | entry in the global offset table. If the symbol is a section | |
1445 | symbol, the next reloc is a R_MIPS_LO16 reloc. The two 16 bit | |
1446 | addends are combined to form the real addend against the section | |
1447 | symbol; the GOT16 is modified to contain the offset of an entry in | |
1448 | the global offset table, and the LO16 is modified to offset it | |
1449 | appropriately. Thus an offset larger than 16 bits requires a | |
1450 | modified value in the global offset table. | |
1451 | ||
1452 | This implementation suffices for the assembler, but the linker does | |
1453 | not yet know how to create global offset tables. */ | |
1454 | ||
a4382ec6 | 1455 | static bfd_reloc_status_type |
11a2be4d RS |
1456 | mips_elf64_got16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
1457 | void *data, asection *input_section, bfd *output_bfd, | |
1458 | char **error_message) | |
5b6a02bc | 1459 | { |
5b6a02bc | 1460 | /* If we're relocating, and this is a local symbol, we can handle it |
a4382ec6 | 1461 | just like an R_MIPS_HI16. */ |
11a2be4d | 1462 | if (output_bfd != NULL |
a7ebbfdf TS |
1463 | && ((symbol->flags & BSF_SECTION_SYM) != 0 |
1464 | || (symbol->flags & BSF_LOCAL) == 0)) | |
5b6a02bc TS |
1465 | return mips_elf64_hi16_reloc (abfd, reloc_entry, symbol, data, |
1466 | input_section, output_bfd, error_message); | |
1467 | ||
a4382ec6 TS |
1468 | |
1469 | /* Otherwise we try to handle it as R_MIPS_GOT_DISP. */ | |
1470 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
1471 | input_section, output_bfd, error_message); | |
5b6a02bc TS |
1472 | } |
1473 | ||
b34976b6 | 1474 | /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a |
5b6a02bc | 1475 | dangerous relocation. */ |
252b5132 | 1476 | |
b34976b6 | 1477 | static bfd_boolean |
11a2be4d | 1478 | mips_elf64_assign_gp (bfd *output_bfd, bfd_vma *pgp) |
252b5132 | 1479 | { |
252b5132 | 1480 | unsigned int count; |
5b6a02bc | 1481 | asymbol **sym; |
252b5132 | 1482 | unsigned int i; |
252b5132 | 1483 | |
5b6a02bc TS |
1484 | /* If we've already figured out what GP will be, just return it. */ |
1485 | *pgp = _bfd_get_gp_value (output_bfd); | |
1486 | if (*pgp) | |
b34976b6 | 1487 | return TRUE; |
252b5132 | 1488 | |
5b6a02bc TS |
1489 | count = bfd_get_symcount (output_bfd); |
1490 | sym = bfd_get_outsymbols (output_bfd); | |
252b5132 | 1491 | |
5b6a02bc TS |
1492 | /* The linker script will have created a symbol named `_gp' with the |
1493 | appropriate value. */ | |
11a2be4d | 1494 | if (sym == NULL) |
5b6a02bc TS |
1495 | i = count; |
1496 | else | |
1497 | { | |
1498 | for (i = 0; i < count; i++, sym++) | |
1499 | { | |
3f9c735e | 1500 | register const char *name; |
252b5132 | 1501 | |
5b6a02bc TS |
1502 | name = bfd_asymbol_name (*sym); |
1503 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
1504 | { | |
1505 | *pgp = bfd_asymbol_value (*sym); | |
1506 | _bfd_set_gp_value (output_bfd, *pgp); | |
1507 | break; | |
1508 | } | |
1509 | } | |
1510 | } | |
252b5132 | 1511 | |
5b6a02bc TS |
1512 | if (i >= count) |
1513 | { | |
1514 | /* Only get the error once. */ | |
1515 | *pgp = 4; | |
1516 | _bfd_set_gp_value (output_bfd, *pgp); | |
b34976b6 | 1517 | return FALSE; |
5b6a02bc | 1518 | } |
252b5132 | 1519 | |
b34976b6 | 1520 | return TRUE; |
5b6a02bc | 1521 | } |
252b5132 | 1522 | |
5b6a02bc TS |
1523 | /* We have to figure out the gp value, so that we can adjust the |
1524 | symbol value correctly. We look up the symbol _gp in the output | |
1525 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
1526 | target data. We don't need to adjust the symbol value for an | |
1049f94e | 1527 | external symbol if we are producing relocatable output. */ |
5b6a02bc TS |
1528 | |
1529 | static bfd_reloc_status_type | |
11a2be4d RS |
1530 | mips_elf64_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable, |
1531 | char **error_message, bfd_vma *pgp) | |
5b6a02bc TS |
1532 | { |
1533 | if (bfd_is_und_section (symbol->section) | |
1049f94e | 1534 | && ! relocatable) |
252b5132 | 1535 | { |
5b6a02bc TS |
1536 | *pgp = 0; |
1537 | return bfd_reloc_undefined; | |
1538 | } | |
252b5132 | 1539 | |
5b6a02bc TS |
1540 | *pgp = _bfd_get_gp_value (output_bfd); |
1541 | if (*pgp == 0 | |
1049f94e | 1542 | && (! relocatable |
5b6a02bc TS |
1543 | || (symbol->flags & BSF_SECTION_SYM) != 0)) |
1544 | { | |
1049f94e | 1545 | if (relocatable) |
252b5132 | 1546 | { |
5b6a02bc | 1547 | /* Make up a value. */ |
a902ee94 | 1548 | *pgp = symbol->section->output_section->vma /*+ 0x4000*/; |
5b6a02bc TS |
1549 | _bfd_set_gp_value (output_bfd, *pgp); |
1550 | } | |
1551 | else if (!mips_elf64_assign_gp (output_bfd, pgp)) | |
1552 | { | |
1553 | *error_message = | |
1554 | (char *) _("GP relative relocation when _gp not defined"); | |
1555 | return bfd_reloc_dangerous; | |
252b5132 | 1556 | } |
5b6a02bc | 1557 | } |
252b5132 | 1558 | |
5b6a02bc TS |
1559 | return bfd_reloc_ok; |
1560 | } | |
252b5132 | 1561 | |
5b6a02bc TS |
1562 | /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must |
1563 | become the offset from the gp register. */ | |
252b5132 | 1564 | |
a4382ec6 | 1565 | static bfd_reloc_status_type |
11a2be4d RS |
1566 | mips_elf64_gprel16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
1567 | void *data, asection *input_section, bfd *output_bfd, | |
1568 | char **error_message) | |
5b6a02bc | 1569 | { |
1049f94e | 1570 | bfd_boolean relocatable; |
5b6a02bc TS |
1571 | bfd_reloc_status_type ret; |
1572 | bfd_vma gp; | |
1573 | ||
a7ebbfdf TS |
1574 | /* If we're relocating, and this is an external symbol, we don't want |
1575 | to change anything. */ | |
11a2be4d | 1576 | if (output_bfd != NULL |
5b6a02bc | 1577 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
a7ebbfdf | 1578 | && (symbol->flags & BSF_LOCAL) != 0) |
5b6a02bc TS |
1579 | { |
1580 | reloc_entry->address += input_section->output_offset; | |
1581 | return bfd_reloc_ok; | |
1582 | } | |
1583 | ||
11a2be4d | 1584 | if (output_bfd != NULL) |
1049f94e | 1585 | relocatable = TRUE; |
5b6a02bc TS |
1586 | else |
1587 | { | |
1049f94e | 1588 | relocatable = FALSE; |
5b6a02bc TS |
1589 | output_bfd = symbol->section->output_section->owner; |
1590 | } | |
1591 | ||
1049f94e | 1592 | ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message, |
5b6a02bc TS |
1593 | &gp); |
1594 | if (ret != bfd_reloc_ok) | |
1595 | return ret; | |
1596 | ||
c6e90b02 | 1597 | return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry, |
1049f94e | 1598 | input_section, relocatable, |
c6e90b02 | 1599 | data, gp); |
5b6a02bc TS |
1600 | } |
1601 | ||
a4382ec6 | 1602 | /* Do a R_MIPS_LITERAL relocation. */ |
5b6a02bc | 1603 | |
a4382ec6 | 1604 | static bfd_reloc_status_type |
11a2be4d RS |
1605 | mips_elf64_literal_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
1606 | void *data, asection *input_section, bfd *output_bfd, | |
1607 | char **error_message) | |
5b6a02bc | 1608 | { |
1049f94e | 1609 | bfd_boolean relocatable; |
a4382ec6 | 1610 | bfd_reloc_status_type ret; |
5b6a02bc TS |
1611 | bfd_vma gp; |
1612 | ||
a4382ec6 TS |
1613 | /* If we're relocating, and this is an external symbol, we don't |
1614 | want to change anything. */ | |
11a2be4d | 1615 | if (output_bfd != NULL |
5b6a02bc | 1616 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
a7ebbfdf | 1617 | && (symbol->flags & BSF_LOCAL) != 0) |
5b6a02bc TS |
1618 | { |
1619 | reloc_entry->address += input_section->output_offset; | |
1620 | return bfd_reloc_ok; | |
1621 | } | |
1622 | ||
a4382ec6 | 1623 | /* FIXME: The entries in the .lit8 and .lit4 sections should be merged. */ |
11a2be4d | 1624 | if (output_bfd != NULL) |
1049f94e | 1625 | relocatable = TRUE; |
5b6a02bc TS |
1626 | else |
1627 | { | |
1049f94e | 1628 | relocatable = FALSE; |
5b6a02bc TS |
1629 | output_bfd = symbol->section->output_section->owner; |
1630 | } | |
1631 | ||
1049f94e | 1632 | ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message, |
a4382ec6 TS |
1633 | &gp); |
1634 | if (ret != bfd_reloc_ok) | |
1635 | return ret; | |
5b6a02bc | 1636 | |
a4382ec6 | 1637 | return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry, |
1049f94e | 1638 | input_section, relocatable, |
a4382ec6 | 1639 | data, gp); |
5b6a02bc TS |
1640 | } |
1641 | ||
a4382ec6 TS |
1642 | /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must |
1643 | become the offset from the gp register. */ | |
5b6a02bc | 1644 | |
a4382ec6 | 1645 | static bfd_reloc_status_type |
11a2be4d RS |
1646 | mips_elf64_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
1647 | void *data, asection *input_section, bfd *output_bfd, | |
1648 | char **error_message) | |
5b6a02bc | 1649 | { |
1049f94e | 1650 | bfd_boolean relocatable; |
5b6a02bc TS |
1651 | bfd_reloc_status_type ret; |
1652 | bfd_vma gp; | |
1653 | bfd_vma relocation; | |
a7ebbfdf | 1654 | bfd_vma val; |
5b6a02bc | 1655 | |
a7ebbfdf TS |
1656 | /* If we're relocating, and this is an external symbol, we don't want |
1657 | to change anything. */ | |
11a2be4d | 1658 | if (output_bfd != NULL |
5b6a02bc | 1659 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
a7ebbfdf | 1660 | && (symbol->flags & BSF_LOCAL) != 0) |
5b6a02bc TS |
1661 | { |
1662 | *error_message = (char *) | |
1663 | _("32bits gp relative relocation occurs for an external symbol"); | |
1664 | return bfd_reloc_outofrange; | |
1665 | } | |
1666 | ||
11a2be4d | 1667 | if (output_bfd != NULL) |
1049f94e | 1668 | relocatable = TRUE; |
5b6a02bc TS |
1669 | else |
1670 | { | |
1049f94e | 1671 | relocatable = FALSE; |
5b6a02bc | 1672 | output_bfd = symbol->section->output_section->owner; |
5b6a02bc TS |
1673 | } |
1674 | ||
1049f94e | 1675 | ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, |
a7ebbfdf TS |
1676 | error_message, &gp); |
1677 | if (ret != bfd_reloc_ok) | |
1678 | return ret; | |
1679 | ||
5b6a02bc TS |
1680 | if (bfd_is_com_section (symbol->section)) |
1681 | relocation = 0; | |
1682 | else | |
1683 | relocation = symbol->value; | |
1684 | ||
1685 | relocation += symbol->section->output_section->vma; | |
1686 | relocation += symbol->section->output_offset; | |
1687 | ||
1688 | if (reloc_entry->address > input_section->_cooked_size) | |
1689 | return bfd_reloc_outofrange; | |
1690 | ||
5b6a02bc | 1691 | /* Set val to the offset into the section or symbol. */ |
a7ebbfdf TS |
1692 | val = reloc_entry->addend; |
1693 | ||
1694 | if (reloc_entry->howto->partial_inplace) | |
1695 | val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
5b6a02bc TS |
1696 | |
1697 | /* Adjust val for the final section location and GP value. If we | |
1049f94e | 1698 | are producing relocatable output, we don't want to do this for |
5b6a02bc | 1699 | an external symbol. */ |
1049f94e | 1700 | if (! relocatable |
5b6a02bc TS |
1701 | || (symbol->flags & BSF_SECTION_SYM) != 0) |
1702 | val += relocation - gp; | |
1703 | ||
a7ebbfdf TS |
1704 | if (reloc_entry->howto->partial_inplace) |
1705 | bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address); | |
1706 | else | |
1707 | reloc_entry->addend = val; | |
5b6a02bc | 1708 | |
1049f94e | 1709 | if (relocatable) |
5b6a02bc TS |
1710 | reloc_entry->address += input_section->output_offset; |
1711 | ||
1712 | return bfd_reloc_ok; | |
1713 | } | |
1714 | ||
1715 | /* Do a R_MIPS_SHIFT6 relocation. The MSB of the shift is stored at bit 2, | |
a4382ec6 | 1716 | the rest is at bits 6-10. The bitpos already got right by the howto. */ |
5b6a02bc | 1717 | |
a4382ec6 | 1718 | static bfd_reloc_status_type |
11a2be4d RS |
1719 | mips_elf64_shift6_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, |
1720 | asymbol *symbol, void *data ATTRIBUTE_UNUSED, | |
1721 | asection *input_section, bfd *output_bfd, | |
1722 | char **error_message ATTRIBUTE_UNUSED) | |
5b6a02bc TS |
1723 | { |
1724 | /* If we're relocating, and this is an external symbol, we don't | |
1725 | want to change anything. */ | |
11a2be4d | 1726 | if (output_bfd != NULL |
5b6a02bc | 1727 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
a7ebbfdf | 1728 | && (symbol->flags & BSF_LOCAL) != 0) |
5b6a02bc TS |
1729 | { |
1730 | reloc_entry->address += input_section->output_offset; | |
1731 | return bfd_reloc_ok; | |
1732 | } | |
1733 | ||
a7ebbfdf TS |
1734 | if (reloc_entry->howto->partial_inplace) |
1735 | { | |
1736 | reloc_entry->addend = ((reloc_entry->addend & 0x00007c0) | |
1737 | | (reloc_entry->addend & 0x00000800) >> 9); | |
1738 | } | |
5b6a02bc TS |
1739 | |
1740 | return bfd_reloc_continue; | |
1741 | } | |
1742 | ||
a4382ec6 TS |
1743 | /* Handle a mips16 jump. */ |
1744 | ||
1745 | static bfd_reloc_status_type | |
11a2be4d RS |
1746 | mips16_jump_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, |
1747 | asymbol *symbol, void *data ATTRIBUTE_UNUSED, | |
1748 | asection *input_section, bfd *output_bfd, | |
1749 | char **error_message ATTRIBUTE_UNUSED) | |
a4382ec6 | 1750 | { |
11a2be4d | 1751 | if (output_bfd != NULL |
a4382ec6 TS |
1752 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
1753 | && (! reloc_entry->howto->partial_inplace | |
1754 | || reloc_entry->addend == 0)) | |
1755 | { | |
1756 | reloc_entry->address += input_section->output_offset; | |
1757 | return bfd_reloc_ok; | |
1758 | } | |
1759 | ||
1760 | /* FIXME. */ | |
1761 | { | |
b34976b6 | 1762 | static bfd_boolean warned; |
a4382ec6 TS |
1763 | |
1764 | if (! warned) | |
1765 | (*_bfd_error_handler) | |
1766 | (_("Linking mips16 objects into %s format is not supported"), | |
1767 | bfd_get_target (input_section->output_section->owner)); | |
b34976b6 | 1768 | warned = TRUE; |
a4382ec6 TS |
1769 | } |
1770 | ||
1771 | return bfd_reloc_undefined; | |
1772 | } | |
1773 | ||
1774 | /* Handle a mips16 GP relative reloc. */ | |
1775 | ||
1776 | static bfd_reloc_status_type | |
11a2be4d RS |
1777 | mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
1778 | void *data, asection *input_section, bfd *output_bfd, | |
1779 | char **error_message) | |
a4382ec6 | 1780 | { |
1049f94e | 1781 | bfd_boolean relocatable; |
a4382ec6 TS |
1782 | bfd_reloc_status_type ret; |
1783 | bfd_vma gp; | |
a7ebbfdf TS |
1784 | unsigned short extend = 0; |
1785 | unsigned short insn = 0; | |
1786 | bfd_signed_vma val; | |
1787 | bfd_vma relocation; | |
a4382ec6 TS |
1788 | |
1789 | /* If we're relocating, and this is an external symbol with no | |
a7ebbfdf | 1790 | addend, we don't want to change anything. */ |
a4382ec6 TS |
1791 | if (output_bfd != NULL |
1792 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
a7ebbfdf | 1793 | && (symbol->flags & BSF_LOCAL) != 0) |
a4382ec6 TS |
1794 | { |
1795 | reloc_entry->address += input_section->output_offset; | |
1796 | return bfd_reloc_ok; | |
1797 | } | |
1798 | ||
1799 | if (output_bfd != NULL) | |
1049f94e | 1800 | relocatable = TRUE; |
a4382ec6 TS |
1801 | else |
1802 | { | |
1049f94e | 1803 | relocatable = FALSE; |
a4382ec6 TS |
1804 | output_bfd = symbol->section->output_section->owner; |
1805 | } | |
1806 | ||
1049f94e | 1807 | ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message, |
a4382ec6 TS |
1808 | &gp); |
1809 | if (ret != bfd_reloc_ok) | |
1810 | return ret; | |
1811 | ||
1812 | if (reloc_entry->address > input_section->_cooked_size) | |
1813 | return bfd_reloc_outofrange; | |
1814 | ||
a7ebbfdf TS |
1815 | if (bfd_is_com_section (symbol->section)) |
1816 | relocation = 0; | |
1817 | else | |
1818 | relocation = symbol->value; | |
1819 | ||
1820 | relocation += symbol->section->output_section->vma; | |
1821 | relocation += symbol->section->output_offset; | |
1822 | ||
1823 | /* Set val to the offset into the section or symbol. */ | |
1824 | val = reloc_entry->addend; | |
1825 | ||
1826 | if (reloc_entry->howto->partial_inplace) | |
1827 | { | |
1828 | /* Pick up the mips16 extend instruction and the real instruction. */ | |
1829 | extend = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address); | |
1830 | insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address + 2); | |
1831 | val += ((extend & 0x1f) << 11) | (extend & 0x7e0) | (insn & 0x1f); | |
1832 | } | |
1833 | ||
1834 | _bfd_mips_elf_sign_extend(val, 16); | |
1835 | ||
1836 | /* Adjust val for the final section location and GP value. If we | |
1049f94e | 1837 | are producing relocatable output, we don't want to do this for |
a7ebbfdf | 1838 | an external symbol. */ |
1049f94e | 1839 | if (! relocatable |
a7ebbfdf TS |
1840 | || (symbol->flags & BSF_SECTION_SYM) != 0) |
1841 | val += relocation - gp; | |
1842 | ||
1843 | if (reloc_entry->howto->partial_inplace) | |
1844 | { | |
1845 | bfd_put_16 (abfd, | |
11a2be4d | 1846 | (extend & 0xf800) | ((val >> 11) & 0x1f) | (val & 0x7e0), |
a7ebbfdf TS |
1847 | (bfd_byte *) data + reloc_entry->address); |
1848 | bfd_put_16 (abfd, | |
11a2be4d | 1849 | (insn & 0xffe0) | (val & 0x1f), |
a7ebbfdf TS |
1850 | (bfd_byte *) data + reloc_entry->address + 2); |
1851 | } | |
1852 | else | |
1853 | reloc_entry->addend = val; | |
1854 | ||
1049f94e | 1855 | if (relocatable) |
a7ebbfdf TS |
1856 | reloc_entry->address += input_section->output_offset; |
1857 | else if (((val & ~0xffff) != ~0xffff) && ((val & ~0xffff) != 0)) | |
1858 | return bfd_reloc_overflow; | |
1859 | ||
1860 | return bfd_reloc_ok; | |
a4382ec6 TS |
1861 | } |
1862 | \f | |
1863 | /* A mapping from BFD reloc types to MIPS ELF reloc types. */ | |
1864 | ||
1865 | struct elf_reloc_map { | |
1866 | bfd_reloc_code_real_type bfd_val; | |
1867 | enum elf_mips_reloc_type elf_val; | |
1868 | }; | |
1869 | ||
1870 | static const struct elf_reloc_map mips_reloc_map[] = | |
1871 | { | |
1872 | { BFD_RELOC_NONE, R_MIPS_NONE }, | |
1873 | { BFD_RELOC_16, R_MIPS_16 }, | |
1874 | { BFD_RELOC_32, R_MIPS_32 }, | |
1875 | /* There is no BFD reloc for R_MIPS_REL32. */ | |
1876 | { BFD_RELOC_64, R_MIPS_64 }, | |
1877 | { BFD_RELOC_CTOR, R_MIPS_64 }, | |
0b25d3e6 | 1878 | { BFD_RELOC_16_PCREL, R_MIPS_PC16 }, |
a4382ec6 TS |
1879 | { BFD_RELOC_HI16_S, R_MIPS_HI16 }, |
1880 | { BFD_RELOC_LO16, R_MIPS_LO16 }, | |
1881 | { BFD_RELOC_GPREL16, R_MIPS_GPREL16 }, | |
1882 | { BFD_RELOC_GPREL32, R_MIPS_GPREL32 }, | |
1883 | { BFD_RELOC_MIPS_JMP, R_MIPS_26 }, | |
1884 | { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL }, | |
1885 | { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 }, | |
1886 | { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 }, | |
1887 | { BFD_RELOC_MIPS_SHIFT5, R_MIPS_SHIFT5 }, | |
1888 | { BFD_RELOC_MIPS_SHIFT6, R_MIPS_SHIFT6 }, | |
1889 | { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP }, | |
1890 | { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE }, | |
1891 | { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST }, | |
1892 | { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 }, | |
1893 | { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 }, | |
1894 | { BFD_RELOC_MIPS_SUB, R_MIPS_SUB }, | |
1895 | { BFD_RELOC_MIPS_INSERT_A, R_MIPS_INSERT_A }, | |
1896 | { BFD_RELOC_MIPS_INSERT_B, R_MIPS_INSERT_B }, | |
1897 | { BFD_RELOC_MIPS_DELETE, R_MIPS_DELETE }, | |
1898 | { BFD_RELOC_MIPS_HIGHEST, R_MIPS_HIGHEST }, | |
1899 | { BFD_RELOC_MIPS_HIGHER, R_MIPS_HIGHER }, | |
1900 | { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 }, | |
1901 | { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 }, | |
1902 | { BFD_RELOC_MIPS_SCN_DISP, R_MIPS_SCN_DISP }, | |
1903 | { BFD_RELOC_MIPS_REL16, R_MIPS_REL16 }, | |
1904 | /* Use of R_MIPS_ADD_IMMEDIATE and R_MIPS_PJUMP is deprecated. */ | |
1905 | { BFD_RELOC_MIPS_RELGOT, R_MIPS_RELGOT }, | |
1906 | { BFD_RELOC_MIPS_JALR, R_MIPS_JALR } | |
1907 | }; | |
1908 | ||
5b6a02bc TS |
1909 | /* Given a BFD reloc type, return a howto structure. */ |
1910 | ||
1911 | static reloc_howto_type * | |
11a2be4d RS |
1912 | bfd_elf64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
1913 | bfd_reloc_code_real_type code) | |
5b6a02bc | 1914 | { |
a4382ec6 | 1915 | unsigned int i; |
5b6a02bc TS |
1916 | /* FIXME: We default to RELA here instead of choosing the right |
1917 | relocation variant. */ | |
1918 | reloc_howto_type *howto_table = mips_elf64_howto_table_rela; | |
1919 | ||
a4382ec6 TS |
1920 | for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); |
1921 | i++) | |
1922 | { | |
1923 | if (mips_reloc_map[i].bfd_val == code) | |
1924 | return &howto_table[(int) mips_reloc_map[i].elf_val]; | |
1925 | } | |
1926 | ||
5b6a02bc TS |
1927 | switch (code) |
1928 | { | |
5b6a02bc TS |
1929 | case BFD_RELOC_MIPS16_JMP: |
1930 | return &elf_mips16_jump_howto; | |
1931 | case BFD_RELOC_MIPS16_GPREL: | |
1932 | return &elf_mips16_gprel_howto; | |
1933 | case BFD_RELOC_VTABLE_INHERIT: | |
1934 | return &elf_mips_gnu_vtinherit_howto; | |
1935 | case BFD_RELOC_VTABLE_ENTRY: | |
1936 | return &elf_mips_gnu_vtentry_howto; | |
d0c728db TS |
1937 | case BFD_RELOC_16_PCREL_S2: |
1938 | return &elf_mips_gnu_rela16_s2; | |
5b6a02bc TS |
1939 | default: |
1940 | bfd_set_error (bfd_error_bad_value); | |
1941 | return NULL; | |
1942 | } | |
1943 | } | |
1944 | ||
947216bf | 1945 | /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */ |
c6e90b02 TS |
1946 | |
1947 | static reloc_howto_type * | |
11a2be4d | 1948 | mips_elf64_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p) |
c6e90b02 TS |
1949 | { |
1950 | switch (r_type) | |
1951 | { | |
c6e90b02 TS |
1952 | case R_MIPS16_26: |
1953 | return &elf_mips16_jump_howto; | |
c6e90b02 TS |
1954 | case R_MIPS16_GPREL: |
1955 | return &elf_mips16_gprel_howto; | |
c6e90b02 TS |
1956 | case R_MIPS_GNU_VTINHERIT: |
1957 | return &elf_mips_gnu_vtinherit_howto; | |
c6e90b02 TS |
1958 | case R_MIPS_GNU_VTENTRY: |
1959 | return &elf_mips_gnu_vtentry_howto; | |
d0c728db TS |
1960 | case R_MIPS_GNU_REL16_S2: |
1961 | if (rela_p) | |
1962 | return &elf_mips_gnu_rela16_s2; | |
1963 | else | |
1964 | return &elf_mips_gnu_rel16_s2; | |
c6e90b02 TS |
1965 | default: |
1966 | BFD_ASSERT (r_type < (unsigned int) R_MIPS_max); | |
1967 | if (rela_p) | |
1968 | return &mips_elf64_howto_table_rela[r_type]; | |
1969 | else | |
1970 | return &mips_elf64_howto_table_rel[r_type]; | |
1971 | break; | |
1972 | } | |
1973 | } | |
1974 | ||
5b6a02bc TS |
1975 | /* Prevent relocation handling by bfd for MIPS ELF64. */ |
1976 | ||
1977 | static void | |
11a2be4d RS |
1978 | mips_elf64_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, |
1979 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
1980 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
5b6a02bc TS |
1981 | { |
1982 | BFD_ASSERT (0); | |
1983 | } | |
1984 | ||
1985 | static void | |
11a2be4d RS |
1986 | mips_elf64_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED, |
1987 | arelent *cache_ptr ATTRIBUTE_UNUSED, | |
1988 | Elf_Internal_Rela *dst ATTRIBUTE_UNUSED) | |
5b6a02bc TS |
1989 | { |
1990 | BFD_ASSERT (0); | |
1991 | } | |
1992 | ||
1993 | /* Since each entry in an SHT_REL or SHT_RELA section can represent up | |
1994 | to three relocs, we must tell the user to allocate more space. */ | |
1995 | ||
1996 | static long | |
11a2be4d | 1997 | mips_elf64_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) |
5b6a02bc TS |
1998 | { |
1999 | return (sec->reloc_count * 3 + 1) * sizeof (arelent *); | |
2000 | } | |
2001 | ||
fee24f1c | 2002 | static long |
11a2be4d | 2003 | mips_elf64_get_dynamic_reloc_upper_bound (bfd *abfd) |
fee24f1c AO |
2004 | { |
2005 | return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 3; | |
2006 | } | |
2007 | ||
2008 | /* We must also copy more relocations than the corresponding functions | |
2009 | in elf.c would, so the two following functions are slightly | |
2010 | modified from elf.c, that multiply the external relocation count by | |
2011 | 3 to obtain the internal relocation count. */ | |
2012 | ||
2013 | static long | |
11a2be4d RS |
2014 | mips_elf64_canonicalize_reloc (bfd *abfd, sec_ptr section, |
2015 | arelent **relptr, asymbol **symbols) | |
fee24f1c AO |
2016 | { |
2017 | arelent *tblptr; | |
2018 | unsigned int i; | |
9c5bfbb7 | 2019 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
fee24f1c AO |
2020 | |
2021 | if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE)) | |
2022 | return -1; | |
2023 | ||
2024 | tblptr = section->relocation; | |
2025 | for (i = 0; i < section->reloc_count * 3; i++) | |
2026 | *relptr++ = tblptr++; | |
2027 | ||
2028 | *relptr = NULL; | |
2029 | ||
2030 | return section->reloc_count * 3; | |
2031 | } | |
2032 | ||
2033 | static long | |
11a2be4d RS |
2034 | mips_elf64_canonicalize_dynamic_reloc (bfd *abfd, arelent **storage, |
2035 | asymbol **syms) | |
fee24f1c | 2036 | { |
11a2be4d | 2037 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
fee24f1c AO |
2038 | asection *s; |
2039 | long ret; | |
2040 | ||
2041 | if (elf_dynsymtab (abfd) == 0) | |
2042 | { | |
2043 | bfd_set_error (bfd_error_invalid_operation); | |
2044 | return -1; | |
2045 | } | |
2046 | ||
2047 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
2048 | ret = 0; | |
2049 | for (s = abfd->sections; s != NULL; s = s->next) | |
2050 | { | |
2051 | if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd) | |
2052 | && (elf_section_data (s)->this_hdr.sh_type == SHT_REL | |
2053 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA)) | |
2054 | { | |
2055 | arelent *p; | |
2056 | long count, i; | |
2057 | ||
2058 | if (! (*slurp_relocs) (abfd, s, syms, TRUE)) | |
2059 | return -1; | |
2060 | count = s->_raw_size / elf_section_data (s)->this_hdr.sh_entsize * 3; | |
2061 | p = s->relocation; | |
2062 | for (i = 0; i < count; i++) | |
2063 | *storage++ = p++; | |
2064 | ret += count; | |
2065 | } | |
2066 | } | |
2067 | ||
2068 | *storage = NULL; | |
2069 | ||
2070 | return ret; | |
2071 | } | |
2072 | ||
2073 | /* Read the relocations from one reloc section. This is mostly copied | |
2074 | from elfcode.h, except for the changes to expand one external | |
2075 | relocation to 3 internal ones. We must unfortunately set | |
2076 | reloc_count to the number of external relocations, because a lot of | |
2077 | generic code seems to depend on this. */ | |
5b6a02bc | 2078 | |
b34976b6 | 2079 | static bfd_boolean |
11a2be4d RS |
2080 | mips_elf64_slurp_one_reloc_table (bfd *abfd, asection *asect, |
2081 | Elf_Internal_Shdr *rel_hdr, | |
2082 | bfd_size_type reloc_count, | |
2083 | arelent *relents, asymbol **symbols, | |
2084 | bfd_boolean dynamic) | |
5b6a02bc | 2085 | { |
11a2be4d | 2086 | void *allocated; |
5b6a02bc | 2087 | bfd_byte *native_relocs; |
5b6a02bc | 2088 | arelent *relent; |
5b6a02bc TS |
2089 | bfd_vma i; |
2090 | int entsize; | |
2091 | reloc_howto_type *howto_table; | |
2092 | ||
11a2be4d | 2093 | allocated = bfd_malloc (rel_hdr->sh_size); |
5b6a02bc | 2094 | if (allocated == NULL) |
b34976b6 | 2095 | return FALSE; |
5b6a02bc TS |
2096 | |
2097 | if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0 | |
fee24f1c AO |
2098 | || (bfd_bread (allocated, rel_hdr->sh_size, abfd) |
2099 | != rel_hdr->sh_size)) | |
5b6a02bc TS |
2100 | goto error_return; |
2101 | ||
11a2be4d | 2102 | native_relocs = allocated; |
5b6a02bc | 2103 | |
5b6a02bc TS |
2104 | entsize = rel_hdr->sh_entsize; |
2105 | BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel) | |
2106 | || entsize == sizeof (Elf64_Mips_External_Rela)); | |
2107 | ||
5b6a02bc TS |
2108 | if (entsize == sizeof (Elf64_Mips_External_Rel)) |
2109 | howto_table = mips_elf64_howto_table_rel; | |
2110 | else | |
2111 | howto_table = mips_elf64_howto_table_rela; | |
2112 | ||
fee24f1c AO |
2113 | for (i = 0, relent = relents; |
2114 | i < reloc_count; | |
2115 | i++, native_relocs += entsize) | |
5b6a02bc TS |
2116 | { |
2117 | Elf64_Mips_Internal_Rela rela; | |
b34976b6 | 2118 | bfd_boolean used_sym, used_ssym; |
5b6a02bc TS |
2119 | int ir; |
2120 | ||
2121 | if (entsize == sizeof (Elf64_Mips_External_Rela)) | |
2122 | mips_elf64_swap_reloca_in (abfd, | |
2123 | (Elf64_Mips_External_Rela *) native_relocs, | |
2124 | &rela); | |
2125 | else | |
947216bf AM |
2126 | mips_elf64_swap_reloc_in (abfd, |
2127 | (Elf64_Mips_External_Rel *) native_relocs, | |
2128 | &rela); | |
5b6a02bc | 2129 | |
49179469 | 2130 | /* Each entry represents exactly three actual relocations. */ |
5b6a02bc | 2131 | |
b34976b6 AM |
2132 | used_sym = FALSE; |
2133 | used_ssym = FALSE; | |
5b6a02bc TS |
2134 | for (ir = 0; ir < 3; ir++) |
2135 | { | |
2136 | enum elf_mips_reloc_type type; | |
2137 | ||
2138 | switch (ir) | |
252b5132 RH |
2139 | { |
2140 | default: | |
2141 | abort (); | |
2142 | case 0: | |
2143 | type = (enum elf_mips_reloc_type) rela.r_type; | |
2144 | break; | |
2145 | case 1: | |
2146 | type = (enum elf_mips_reloc_type) rela.r_type2; | |
2147 | break; | |
2148 | case 2: | |
2149 | type = (enum elf_mips_reloc_type) rela.r_type3; | |
2150 | break; | |
2151 | } | |
2152 | ||
252b5132 RH |
2153 | /* Some types require symbols, whereas some do not. */ |
2154 | switch (type) | |
2155 | { | |
2156 | case R_MIPS_NONE: | |
2157 | case R_MIPS_LITERAL: | |
2158 | case R_MIPS_INSERT_A: | |
2159 | case R_MIPS_INSERT_B: | |
2160 | case R_MIPS_DELETE: | |
2161 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
2162 | break; | |
2163 | ||
2164 | default: | |
2165 | if (! used_sym) | |
2166 | { | |
2167 | if (rela.r_sym == 0) | |
2168 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
2169 | else | |
2170 | { | |
2171 | asymbol **ps, *s; | |
2172 | ||
2173 | ps = symbols + rela.r_sym - 1; | |
2174 | s = *ps; | |
2175 | if ((s->flags & BSF_SECTION_SYM) == 0) | |
2176 | relent->sym_ptr_ptr = ps; | |
2177 | else | |
2178 | relent->sym_ptr_ptr = s->section->symbol_ptr_ptr; | |
2179 | } | |
2180 | ||
b34976b6 | 2181 | used_sym = TRUE; |
252b5132 RH |
2182 | } |
2183 | else if (! used_ssym) | |
2184 | { | |
2185 | switch (rela.r_ssym) | |
2186 | { | |
2187 | case RSS_UNDEF: | |
2188 | relent->sym_ptr_ptr = | |
2189 | bfd_abs_section_ptr->symbol_ptr_ptr; | |
2190 | break; | |
2191 | ||
2192 | case RSS_GP: | |
2193 | case RSS_GP0: | |
2194 | case RSS_LOC: | |
2195 | /* FIXME: I think these need to be handled using | |
2196 | special howto structures. */ | |
2197 | BFD_ASSERT (0); | |
2198 | break; | |
2199 | ||
2200 | default: | |
2201 | BFD_ASSERT (0); | |
2202 | break; | |
2203 | } | |
2204 | ||
b34976b6 | 2205 | used_ssym = TRUE; |
252b5132 RH |
2206 | } |
2207 | else | |
2208 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
2209 | ||
2210 | break; | |
2211 | } | |
2212 | ||
2213 | /* The address of an ELF reloc is section relative for an | |
2214 | object file, and absolute for an executable file or | |
2215 | shared library. The address of a BFD reloc is always | |
2216 | section relative. */ | |
fee24f1c | 2217 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic) |
252b5132 RH |
2218 | relent->address = rela.r_offset; |
2219 | else | |
2220 | relent->address = rela.r_offset - asect->vma; | |
2221 | ||
2222 | relent->addend = rela.r_addend; | |
2223 | ||
2224 | relent->howto = &howto_table[(int) type]; | |
2225 | ||
2226 | ++relent; | |
2227 | } | |
2228 | } | |
2229 | ||
49179469 | 2230 | asect->reloc_count += (relent - relents) / 3; |
252b5132 RH |
2231 | |
2232 | if (allocated != NULL) | |
2233 | free (allocated); | |
2234 | ||
b34976b6 | 2235 | return TRUE; |
252b5132 RH |
2236 | |
2237 | error_return: | |
2238 | if (allocated != NULL) | |
2239 | free (allocated); | |
b34976b6 | 2240 | return FALSE; |
252b5132 RH |
2241 | } |
2242 | ||
2243 | /* Read the relocations. On Irix 6, there can be two reloc sections | |
fee24f1c AO |
2244 | associated with a single data section. This is copied from |
2245 | elfcode.h as well, with changes as small as accounting for 3 | |
2246 | internal relocs per external reloc and resetting reloc_count to | |
2247 | zero before processing the relocs of a section. */ | |
252b5132 | 2248 | |
b34976b6 | 2249 | static bfd_boolean |
11a2be4d RS |
2250 | mips_elf64_slurp_reloc_table (bfd *abfd, asection *asect, |
2251 | asymbol **symbols, bfd_boolean dynamic) | |
252b5132 RH |
2252 | { |
2253 | struct bfd_elf_section_data * const d = elf_section_data (asect); | |
fee24f1c AO |
2254 | Elf_Internal_Shdr *rel_hdr; |
2255 | Elf_Internal_Shdr *rel_hdr2; | |
2256 | bfd_size_type reloc_count; | |
2257 | bfd_size_type reloc_count2; | |
2258 | arelent *relents; | |
2259 | bfd_size_type amt; | |
2260 | ||
2261 | if (asect->relocation != NULL) | |
2262 | return TRUE; | |
252b5132 | 2263 | |
fee24f1c | 2264 | if (! dynamic) |
252b5132 | 2265 | { |
fee24f1c AO |
2266 | if ((asect->flags & SEC_RELOC) == 0 |
2267 | || asect->reloc_count == 0) | |
2268 | return TRUE; | |
252b5132 | 2269 | |
fee24f1c AO |
2270 | rel_hdr = &d->rel_hdr; |
2271 | reloc_count = NUM_SHDR_ENTRIES (rel_hdr); | |
2272 | rel_hdr2 = d->rel_hdr2; | |
2273 | reloc_count2 = (rel_hdr2 ? NUM_SHDR_ENTRIES (rel_hdr2) : 0); | |
2274 | ||
2275 | BFD_ASSERT (asect->reloc_count == reloc_count + reloc_count2); | |
2276 | BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset | |
2277 | || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset)); | |
2278 | ||
2279 | } | |
2280 | else | |
2281 | { | |
2282 | /* Note that ASECT->RELOC_COUNT tends not to be accurate in this | |
2283 | case because relocations against this section may use the | |
2284 | dynamic symbol table, and in that case bfd_section_from_shdr | |
2285 | in elf.c does not update the RELOC_COUNT. */ | |
2286 | if (asect->_raw_size == 0) | |
2287 | return TRUE; | |
2288 | ||
2289 | rel_hdr = &d->this_hdr; | |
2290 | reloc_count = NUM_SHDR_ENTRIES (rel_hdr); | |
2291 | rel_hdr2 = NULL; | |
2292 | reloc_count2 = 0; | |
2293 | } | |
252b5132 RH |
2294 | |
2295 | /* Allocate space for 3 arelent structures for each Rel structure. */ | |
fee24f1c | 2296 | amt = (reloc_count + reloc_count2) * 3 * sizeof (arelent); |
11a2be4d | 2297 | relents = bfd_alloc (abfd, amt); |
fee24f1c | 2298 | if (relents == NULL) |
b34976b6 | 2299 | return FALSE; |
252b5132 RH |
2300 | |
2301 | /* The slurp_one_reloc_table routine increments reloc_count. */ | |
2302 | asect->reloc_count = 0; | |
2303 | ||
fee24f1c AO |
2304 | if (! mips_elf64_slurp_one_reloc_table (abfd, asect, |
2305 | rel_hdr, reloc_count, | |
2306 | relents, | |
2307 | symbols, dynamic)) | |
b34976b6 | 2308 | return FALSE; |
252b5132 RH |
2309 | if (d->rel_hdr2 != NULL) |
2310 | { | |
fee24f1c AO |
2311 | if (! mips_elf64_slurp_one_reloc_table (abfd, asect, |
2312 | rel_hdr2, reloc_count2, | |
2313 | relents + reloc_count * 3, | |
2314 | symbols, dynamic)) | |
b34976b6 | 2315 | return FALSE; |
252b5132 RH |
2316 | } |
2317 | ||
fee24f1c | 2318 | asect->relocation = relents; |
b34976b6 | 2319 | return TRUE; |
252b5132 RH |
2320 | } |
2321 | ||
2322 | /* Write out the relocations. */ | |
2323 | ||
2324 | static void | |
11a2be4d | 2325 | mips_elf64_write_relocs (bfd *abfd, asection *sec, void *data) |
252b5132 | 2326 | { |
11a2be4d | 2327 | bfd_boolean *failedp = data; |
5b6a02bc TS |
2328 | int count; |
2329 | Elf_Internal_Shdr *rel_hdr; | |
252b5132 | 2330 | unsigned int idx; |
252b5132 RH |
2331 | |
2332 | /* If we have already failed, don't do anything. */ | |
2333 | if (*failedp) | |
2334 | return; | |
2335 | ||
2336 | if ((sec->flags & SEC_RELOC) == 0) | |
2337 | return; | |
2338 | ||
2339 | /* The linker backend writes the relocs out itself, and sets the | |
2340 | reloc_count field to zero to inhibit writing them here. Also, | |
2341 | sometimes the SEC_RELOC flag gets set even when there aren't any | |
2342 | relocs. */ | |
2343 | if (sec->reloc_count == 0) | |
2344 | return; | |
2345 | ||
2346 | /* We can combine up to three relocs that refer to the same address | |
2347 | if the latter relocs have no associated symbol. */ | |
2348 | count = 0; | |
2349 | for (idx = 0; idx < sec->reloc_count; idx++) | |
2350 | { | |
2351 | bfd_vma addr; | |
2352 | unsigned int i; | |
2353 | ||
2354 | ++count; | |
2355 | ||
2356 | addr = sec->orelocation[idx]->address; | |
2357 | for (i = 0; i < 2; i++) | |
2358 | { | |
2359 | arelent *r; | |
2360 | ||
2361 | if (idx + 1 >= sec->reloc_count) | |
2362 | break; | |
2363 | r = sec->orelocation[idx + 1]; | |
2364 | if (r->address != addr | |
2365 | || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section) | |
2366 | || (*r->sym_ptr_ptr)->value != 0) | |
2367 | break; | |
2368 | ||
2369 | /* We can merge the reloc at IDX + 1 with the reloc at IDX. */ | |
2370 | ||
2371 | ++idx; | |
2372 | } | |
2373 | } | |
2374 | ||
5b6a02bc | 2375 | rel_hdr = &elf_section_data (sec)->rel_hdr; |
252b5132 | 2376 | |
5b6a02bc TS |
2377 | /* Do the actual relocation. */ |
2378 | ||
2379 | if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rel)) | |
2380 | mips_elf64_write_rel (abfd, sec, rel_hdr, &count, data); | |
2381 | else if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rela)) | |
2382 | mips_elf64_write_rela (abfd, sec, rel_hdr, &count, data); | |
2383 | else | |
2384 | BFD_ASSERT (0); | |
2385 | } | |
2386 | ||
2387 | static void | |
11a2be4d RS |
2388 | mips_elf64_write_rel (bfd *abfd, asection *sec, |
2389 | Elf_Internal_Shdr *rel_hdr, | |
2390 | int *count, void *data) | |
5b6a02bc | 2391 | { |
11a2be4d | 2392 | bfd_boolean *failedp = data; |
5b6a02bc TS |
2393 | Elf64_Mips_External_Rel *ext_rel; |
2394 | unsigned int idx; | |
2395 | asymbol *last_sym = 0; | |
2396 | int last_sym_idx = 0; | |
2397 | ||
11a2be4d RS |
2398 | rel_hdr->sh_size = rel_hdr->sh_entsize * *count; |
2399 | rel_hdr->contents = bfd_alloc (abfd, rel_hdr->sh_size); | |
5b6a02bc | 2400 | if (rel_hdr->contents == NULL) |
252b5132 | 2401 | { |
b34976b6 | 2402 | *failedp = TRUE; |
252b5132 RH |
2403 | return; |
2404 | } | |
2405 | ||
5b6a02bc TS |
2406 | ext_rel = (Elf64_Mips_External_Rel *) rel_hdr->contents; |
2407 | for (idx = 0; idx < sec->reloc_count; idx++, ext_rel++) | |
252b5132 RH |
2408 | { |
2409 | arelent *ptr; | |
947216bf | 2410 | Elf64_Mips_Internal_Rela int_rel; |
252b5132 RH |
2411 | asymbol *sym; |
2412 | int n; | |
2413 | unsigned int i; | |
2414 | ||
2415 | ptr = sec->orelocation[idx]; | |
2416 | ||
2417 | /* The address of an ELF reloc is section relative for an object | |
2418 | file, and absolute for an executable file or shared library. | |
2419 | The address of a BFD reloc is always section relative. */ | |
2420 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
5b6a02bc | 2421 | int_rel.r_offset = ptr->address; |
252b5132 | 2422 | else |
5b6a02bc | 2423 | int_rel.r_offset = ptr->address + sec->vma; |
252b5132 RH |
2424 | |
2425 | sym = *ptr->sym_ptr_ptr; | |
2426 | if (sym == last_sym) | |
2427 | n = last_sym_idx; | |
2428 | else | |
2429 | { | |
2430 | last_sym = sym; | |
2431 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); | |
2432 | if (n < 0) | |
2433 | { | |
b34976b6 | 2434 | *failedp = TRUE; |
252b5132 RH |
2435 | return; |
2436 | } | |
2437 | last_sym_idx = n; | |
2438 | } | |
2439 | ||
5b6a02bc TS |
2440 | int_rel.r_sym = n; |
2441 | int_rel.r_ssym = RSS_UNDEF; | |
252b5132 RH |
2442 | |
2443 | if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec | |
2444 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
2445 | { | |
b34976b6 | 2446 | *failedp = TRUE; |
252b5132 RH |
2447 | return; |
2448 | } | |
2449 | ||
5b6a02bc TS |
2450 | int_rel.r_type = ptr->howto->type; |
2451 | int_rel.r_type2 = (int) R_MIPS_NONE; | |
2452 | int_rel.r_type3 = (int) R_MIPS_NONE; | |
252b5132 RH |
2453 | |
2454 | for (i = 0; i < 2; i++) | |
2455 | { | |
2456 | arelent *r; | |
2457 | ||
2458 | if (idx + 1 >= sec->reloc_count) | |
2459 | break; | |
2460 | r = sec->orelocation[idx + 1]; | |
2461 | if (r->address != ptr->address | |
2462 | || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section) | |
2463 | || (*r->sym_ptr_ptr)->value != 0) | |
2464 | break; | |
2465 | ||
2466 | /* We can merge the reloc at IDX + 1 with the reloc at IDX. */ | |
2467 | ||
2468 | if (i == 0) | |
5b6a02bc | 2469 | int_rel.r_type2 = r->howto->type; |
252b5132 | 2470 | else |
5b6a02bc | 2471 | int_rel.r_type3 = r->howto->type; |
252b5132 RH |
2472 | |
2473 | ++idx; | |
2474 | } | |
2475 | ||
5b6a02bc | 2476 | mips_elf64_swap_reloc_out (abfd, &int_rel, ext_rel); |
252b5132 RH |
2477 | } |
2478 | ||
5b6a02bc TS |
2479 | BFD_ASSERT (ext_rel - (Elf64_Mips_External_Rel *) rel_hdr->contents |
2480 | == *count); | |
252b5132 | 2481 | } |
5b6a02bc TS |
2482 | |
2483 | static void | |
11a2be4d RS |
2484 | mips_elf64_write_rela (bfd *abfd, asection *sec, |
2485 | Elf_Internal_Shdr *rela_hdr, | |
2486 | int *count, void *data) | |
5b6a02bc | 2487 | { |
11a2be4d | 2488 | bfd_boolean *failedp = data; |
5b6a02bc TS |
2489 | Elf64_Mips_External_Rela *ext_rela; |
2490 | unsigned int idx; | |
2491 | asymbol *last_sym = 0; | |
2492 | int last_sym_idx = 0; | |
2493 | ||
11a2be4d RS |
2494 | rela_hdr->sh_size = rela_hdr->sh_entsize * *count; |
2495 | rela_hdr->contents = bfd_alloc (abfd, rela_hdr->sh_size); | |
5b6a02bc TS |
2496 | if (rela_hdr->contents == NULL) |
2497 | { | |
b34976b6 | 2498 | *failedp = TRUE; |
5b6a02bc TS |
2499 | return; |
2500 | } | |
2501 | ||
2502 | ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents; | |
2503 | for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++) | |
2504 | { | |
2505 | arelent *ptr; | |
2506 | Elf64_Mips_Internal_Rela int_rela; | |
2507 | asymbol *sym; | |
2508 | int n; | |
2509 | unsigned int i; | |
2510 | ||
2511 | ptr = sec->orelocation[idx]; | |
2512 | ||
2513 | /* The address of an ELF reloc is section relative for an object | |
2514 | file, and absolute for an executable file or shared library. | |
2515 | The address of a BFD reloc is always section relative. */ | |
2516 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0) | |
2517 | int_rela.r_offset = ptr->address; | |
2518 | else | |
2519 | int_rela.r_offset = ptr->address + sec->vma; | |
2520 | ||
2521 | sym = *ptr->sym_ptr_ptr; | |
2522 | if (sym == last_sym) | |
2523 | n = last_sym_idx; | |
2524 | else | |
2525 | { | |
2526 | last_sym = sym; | |
2527 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); | |
2528 | if (n < 0) | |
2529 | { | |
b34976b6 | 2530 | *failedp = TRUE; |
5b6a02bc TS |
2531 | return; |
2532 | } | |
2533 | last_sym_idx = n; | |
2534 | } | |
2535 | ||
2536 | int_rela.r_sym = n; | |
2537 | int_rela.r_addend = ptr->addend; | |
2538 | int_rela.r_ssym = RSS_UNDEF; | |
2539 | ||
2540 | if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec | |
2541 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
2542 | { | |
b34976b6 | 2543 | *failedp = TRUE; |
5b6a02bc TS |
2544 | return; |
2545 | } | |
2546 | ||
2547 | int_rela.r_type = ptr->howto->type; | |
2548 | int_rela.r_type2 = (int) R_MIPS_NONE; | |
2549 | int_rela.r_type3 = (int) R_MIPS_NONE; | |
2550 | ||
2551 | for (i = 0; i < 2; i++) | |
2552 | { | |
2553 | arelent *r; | |
2554 | ||
2555 | if (idx + 1 >= sec->reloc_count) | |
2556 | break; | |
2557 | r = sec->orelocation[idx + 1]; | |
2558 | if (r->address != ptr->address | |
2559 | || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section) | |
2560 | || (*r->sym_ptr_ptr)->value != 0) | |
2561 | break; | |
2562 | ||
2563 | /* We can merge the reloc at IDX + 1 with the reloc at IDX. */ | |
2564 | ||
2565 | if (i == 0) | |
2566 | int_rela.r_type2 = r->howto->type; | |
2567 | else | |
2568 | int_rela.r_type3 = r->howto->type; | |
2569 | ||
2570 | ++idx; | |
2571 | } | |
2572 | ||
2573 | mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela); | |
2574 | } | |
2575 | ||
2576 | BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents | |
2577 | == *count); | |
2578 | } | |
2579 | \f | |
c6e90b02 | 2580 | /* Set the right machine number for a MIPS ELF file. */ |
5b6a02bc | 2581 | |
b34976b6 | 2582 | static bfd_boolean |
11a2be4d | 2583 | mips_elf64_object_p (bfd *abfd) |
5b6a02bc | 2584 | { |
c6e90b02 | 2585 | unsigned long mach; |
5b6a02bc | 2586 | |
c6e90b02 TS |
2587 | /* Irix 6 is broken. Object file symbol tables are not always |
2588 | sorted correctly such that local symbols precede global symbols, | |
2589 | and the sh_info field in the symbol table is not always right. */ | |
a4382ec6 | 2590 | if (elf64_mips_irix_compat (abfd) != ict_none) |
b34976b6 | 2591 | elf_bad_symtab (abfd) = TRUE; |
5b6a02bc | 2592 | |
c6e90b02 TS |
2593 | mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags); |
2594 | bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach); | |
b34976b6 | 2595 | return TRUE; |
5b6a02bc TS |
2596 | } |
2597 | ||
c6e90b02 TS |
2598 | /* Depending on the target vector we generate some version of Irix |
2599 | executables or "normal" MIPS ELF ABI executables. */ | |
2600 | static irix_compat_t | |
11a2be4d | 2601 | elf64_mips_irix_compat (bfd *abfd) |
5b6a02bc | 2602 | { |
a4382ec6 TS |
2603 | if ((abfd->xvec == &bfd_elf64_bigmips_vec) |
2604 | || (abfd->xvec == &bfd_elf64_littlemips_vec)) | |
c6e90b02 | 2605 | return ict_irix6; |
a4382ec6 TS |
2606 | else |
2607 | return ict_none; | |
5b6a02bc TS |
2608 | } |
2609 | \f | |
d0112f73 KB |
2610 | /* Support for core dump NOTE sections. */ |
2611 | static bfd_boolean | |
11a2be4d | 2612 | elf64_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
d0112f73 KB |
2613 | { |
2614 | int offset; | |
2615 | unsigned int raw_size; | |
2616 | ||
2617 | switch (note->descsz) | |
2618 | { | |
2619 | default: | |
2620 | return FALSE; | |
2621 | ||
2622 | case 480: /* Linux/MIPS - N64 kernel */ | |
2623 | /* pr_cursig */ | |
2624 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
2625 | ||
2626 | /* pr_pid */ | |
2627 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32); | |
2628 | ||
2629 | /* pr_reg */ | |
2630 | offset = 112; | |
2631 | raw_size = 360; | |
2632 | ||
2633 | break; | |
2634 | } | |
2635 | ||
2636 | /* Make a ".reg/999" section. */ | |
2637 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
2638 | raw_size, note->descpos + offset); | |
2639 | } | |
2640 | ||
2641 | static bfd_boolean | |
11a2be4d | 2642 | elf64_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
d0112f73 KB |
2643 | { |
2644 | switch (note->descsz) | |
2645 | { | |
2646 | default: | |
2647 | return FALSE; | |
2648 | ||
2649 | case 136: /* Linux/MIPS - N64 kernel elf_prpsinfo */ | |
2650 | elf_tdata (abfd)->core_program | |
2651 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); | |
2652 | elf_tdata (abfd)->core_command | |
2653 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); | |
2654 | } | |
2655 | ||
2656 | /* Note that for some reason, a spurious space is tacked | |
2657 | onto the end of the args in some (at least one anyway) | |
2658 | implementations, so strip it off if it exists. */ | |
2659 | ||
2660 | { | |
2661 | char *command = elf_tdata (abfd)->core_command; | |
2662 | int n = strlen (command); | |
2663 | ||
2664 | if (0 < n && command[n - 1] == ' ') | |
2665 | command[n - 1] = '\0'; | |
2666 | } | |
2667 | ||
2668 | return TRUE; | |
2669 | } | |
2670 | \f | |
c6e90b02 TS |
2671 | /* ECOFF swapping routines. These are used when dealing with the |
2672 | .mdebug section, which is in the ECOFF debugging format. */ | |
2673 | static const struct ecoff_debug_swap mips_elf64_ecoff_debug_swap = | |
5b6a02bc | 2674 | { |
c6e90b02 TS |
2675 | /* Symbol table magic number. */ |
2676 | magicSym2, | |
2677 | /* Alignment of debugging information. E.g., 4. */ | |
2678 | 8, | |
2679 | /* Sizes of external symbolic information. */ | |
2680 | sizeof (struct hdr_ext), | |
2681 | sizeof (struct dnr_ext), | |
2682 | sizeof (struct pdr_ext), | |
2683 | sizeof (struct sym_ext), | |
2684 | sizeof (struct opt_ext), | |
2685 | sizeof (struct fdr_ext), | |
2686 | sizeof (struct rfd_ext), | |
2687 | sizeof (struct ext_ext), | |
2688 | /* Functions to swap in external symbolic data. */ | |
2689 | ecoff_swap_hdr_in, | |
2690 | ecoff_swap_dnr_in, | |
2691 | ecoff_swap_pdr_in, | |
2692 | ecoff_swap_sym_in, | |
2693 | ecoff_swap_opt_in, | |
2694 | ecoff_swap_fdr_in, | |
2695 | ecoff_swap_rfd_in, | |
2696 | ecoff_swap_ext_in, | |
2697 | _bfd_ecoff_swap_tir_in, | |
2698 | _bfd_ecoff_swap_rndx_in, | |
2699 | /* Functions to swap out external symbolic data. */ | |
2700 | ecoff_swap_hdr_out, | |
2701 | ecoff_swap_dnr_out, | |
2702 | ecoff_swap_pdr_out, | |
2703 | ecoff_swap_sym_out, | |
2704 | ecoff_swap_opt_out, | |
2705 | ecoff_swap_fdr_out, | |
2706 | ecoff_swap_rfd_out, | |
2707 | ecoff_swap_ext_out, | |
2708 | _bfd_ecoff_swap_tir_out, | |
2709 | _bfd_ecoff_swap_rndx_out, | |
2710 | /* Function to read in symbolic data. */ | |
2711 | _bfd_mips_elf_read_ecoff_info | |
2712 | }; | |
2713 | \f | |
2714 | /* Relocations in the 64 bit MIPS ELF ABI are more complex than in | |
2715 | standard ELF. This structure is used to redirect the relocation | |
2716 | handling routines. */ | |
5b6a02bc | 2717 | |
c6e90b02 | 2718 | const struct elf_size_info mips_elf64_size_info = |
5b6a02bc | 2719 | { |
c6e90b02 TS |
2720 | sizeof (Elf64_External_Ehdr), |
2721 | sizeof (Elf64_External_Phdr), | |
2722 | sizeof (Elf64_External_Shdr), | |
2723 | sizeof (Elf64_Mips_External_Rel), | |
2724 | sizeof (Elf64_Mips_External_Rela), | |
2725 | sizeof (Elf64_External_Sym), | |
2726 | sizeof (Elf64_External_Dyn), | |
2727 | sizeof (Elf_External_Note), | |
2728 | 4, /* hash-table entry size */ | |
2729 | 3, /* internal relocations per external relocations */ | |
2730 | 64, /* arch_size */ | |
45d6a902 | 2731 | 3, /* log_file_align */ |
c6e90b02 TS |
2732 | ELFCLASS64, |
2733 | EV_CURRENT, | |
2734 | bfd_elf64_write_out_phdrs, | |
2735 | bfd_elf64_write_shdrs_and_ehdr, | |
2736 | mips_elf64_write_relocs, | |
73ff0d56 | 2737 | bfd_elf64_swap_symbol_in, |
c6e90b02 TS |
2738 | bfd_elf64_swap_symbol_out, |
2739 | mips_elf64_slurp_reloc_table, | |
2740 | bfd_elf64_slurp_symbol_table, | |
2741 | bfd_elf64_swap_dyn_in, | |
2742 | bfd_elf64_swap_dyn_out, | |
2743 | mips_elf64_be_swap_reloc_in, | |
2744 | mips_elf64_be_swap_reloc_out, | |
2745 | mips_elf64_be_swap_reloca_in, | |
2746 | mips_elf64_be_swap_reloca_out | |
5b6a02bc TS |
2747 | }; |
2748 | ||
c6e90b02 TS |
2749 | #define ELF_ARCH bfd_arch_mips |
2750 | #define ELF_MACHINE_CODE EM_MIPS | |
103186c6 | 2751 | |
a4382ec6 TS |
2752 | /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses |
2753 | a value of 0x1000, and we are compatible. | |
2754 | FIXME: How does this affect NewABI? */ | |
252b5132 | 2755 | #define ELF_MAXPAGESIZE 0x1000 |
103186c6 | 2756 | |
b34976b6 AM |
2757 | #define elf_backend_collect TRUE |
2758 | #define elf_backend_type_change_ok TRUE | |
2759 | #define elf_backend_can_gc_sections TRUE | |
5b6a02bc TS |
2760 | #define elf_info_to_howto mips_elf64_info_to_howto_rela |
2761 | #define elf_info_to_howto_rel mips_elf64_info_to_howto_rel | |
c6e90b02 | 2762 | #define elf_backend_object_p mips_elf64_object_p |
5b6a02bc TS |
2763 | #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing |
2764 | #define elf_backend_section_processing _bfd_mips_elf_section_processing | |
103186c6 | 2765 | #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr |
252b5132 RH |
2766 | #define elf_backend_fake_sections _bfd_mips_elf_fake_sections |
2767 | #define elf_backend_section_from_bfd_section \ | |
c6e90b02 | 2768 | _bfd_mips_elf_section_from_bfd_section |
103186c6 | 2769 | #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook |
5b6a02bc | 2770 | #define elf_backend_link_output_symbol_hook \ |
c6e90b02 | 2771 | _bfd_mips_elf_link_output_symbol_hook |
103186c6 | 2772 | #define elf_backend_create_dynamic_sections \ |
c6e90b02 TS |
2773 | _bfd_mips_elf_create_dynamic_sections |
2774 | #define elf_backend_check_relocs _bfd_mips_elf_check_relocs | |
103186c6 | 2775 | #define elf_backend_adjust_dynamic_symbol \ |
c6e90b02 | 2776 | _bfd_mips_elf_adjust_dynamic_symbol |
103186c6 | 2777 | #define elf_backend_always_size_sections \ |
c6e90b02 | 2778 | _bfd_mips_elf_always_size_sections |
103186c6 | 2779 | #define elf_backend_size_dynamic_sections \ |
c6e90b02 TS |
2780 | _bfd_mips_elf_size_dynamic_sections |
2781 | #define elf_backend_relocate_section _bfd_mips_elf_relocate_section | |
103186c6 | 2782 | #define elf_backend_finish_dynamic_symbol \ |
c6e90b02 | 2783 | _bfd_mips_elf_finish_dynamic_symbol |
103186c6 | 2784 | #define elf_backend_finish_dynamic_sections \ |
c6e90b02 | 2785 | _bfd_mips_elf_finish_dynamic_sections |
5b6a02bc | 2786 | #define elf_backend_final_write_processing \ |
c6e90b02 | 2787 | _bfd_mips_elf_final_write_processing |
5b6a02bc | 2788 | #define elf_backend_additional_program_headers \ |
c6e90b02 | 2789 | _bfd_mips_elf_additional_program_headers |
5b6a02bc | 2790 | #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map |
c6e90b02 TS |
2791 | #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook |
2792 | #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook | |
427b80f4 RS |
2793 | #define elf_backend_copy_indirect_symbol \ |
2794 | _bfd_mips_elf_copy_indirect_symbol | |
c6e90b02 | 2795 | #define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol |
53bfd6b4 MR |
2796 | #define elf_backend_ignore_discarded_relocs \ |
2797 | _bfd_mips_elf_ignore_discarded_relocs | |
c6e90b02 TS |
2798 | #define elf_backend_mips_irix_compat elf64_mips_irix_compat |
2799 | #define elf_backend_mips_rtype_to_howto mips_elf64_rtype_to_howto | |
5b6a02bc TS |
2800 | #define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap |
2801 | #define elf_backend_size_info mips_elf64_size_info | |
d0112f73 KB |
2802 | |
2803 | #define elf_backend_grok_prstatus elf64_mips_grok_prstatus | |
2804 | #define elf_backend_grok_psinfo elf64_mips_grok_psinfo | |
5b6a02bc TS |
2805 | |
2806 | #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO) | |
1e2be829 TS |
2807 | |
2808 | /* MIPS ELF64 can use a mixture of REL and RELA, but some Relocations | |
c6e90b02 | 2809 | work better/work only in RELA, so we default to this. */ |
1e2be829 TS |
2810 | #define elf_backend_may_use_rel_p 1 |
2811 | #define elf_backend_may_use_rela_p 1 | |
2812 | #define elf_backend_default_use_rela_p 1 | |
103186c6 | 2813 | |
d01414a5 TS |
2814 | #define elf_backend_write_section _bfd_mips_elf_write_section |
2815 | ||
fe8bc63d | 2816 | /* We don't set bfd_elf64_bfd_is_local_label_name because the 32-bit |
103186c6 MM |
2817 | MIPS-specific function only applies to IRIX5, which had no 64-bit |
2818 | ABI. */ | |
252b5132 | 2819 | #define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line |
f0abc2a1 | 2820 | #define bfd_elf64_new_section_hook _bfd_mips_elf_new_section_hook |
252b5132 | 2821 | #define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents |
c6e90b02 TS |
2822 | #define bfd_elf64_bfd_get_relocated_section_contents \ |
2823 | _bfd_elf_mips_get_relocated_section_contents | |
103186c6 | 2824 | #define bfd_elf64_bfd_link_hash_table_create \ |
c6e90b02 TS |
2825 | _bfd_mips_elf_link_hash_table_create |
2826 | #define bfd_elf64_bfd_final_link _bfd_mips_elf_final_link | |
252b5132 | 2827 | #define bfd_elf64_bfd_merge_private_bfd_data \ |
c6e90b02 | 2828 | _bfd_mips_elf_merge_private_bfd_data |
252b5132 | 2829 | #define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags |
103186c6 | 2830 | #define bfd_elf64_bfd_print_private_bfd_data \ |
c6e90b02 | 2831 | _bfd_mips_elf_print_private_bfd_data |
252b5132 | 2832 | |
103186c6 | 2833 | #define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound |
fee24f1c AO |
2834 | #define bfd_elf64_canonicalize_reloc mips_elf64_canonicalize_reloc |
2835 | #define bfd_elf64_get_dynamic_reloc_upper_bound mips_elf64_get_dynamic_reloc_upper_bound | |
2836 | #define bfd_elf64_canonicalize_dynamic_reloc mips_elf64_canonicalize_dynamic_reloc | |
d0647110 | 2837 | #define bfd_elf64_bfd_relax_section _bfd_mips_relax_section |
c6e90b02 TS |
2838 | |
2839 | /* MIPS ELF64 archive functions. */ | |
252b5132 | 2840 | #define bfd_elf64_archive_functions |
b34976b6 | 2841 | extern bfd_boolean bfd_elf64_archive_slurp_armap |
11a2be4d | 2842 | (bfd *); |
b34976b6 | 2843 | extern bfd_boolean bfd_elf64_archive_write_armap |
11a2be4d | 2844 | (bfd *, unsigned int, struct orl *, unsigned int, int); |
252b5132 | 2845 | #define bfd_elf64_archive_slurp_extended_name_table \ |
c6e90b02 | 2846 | _bfd_archive_coff_slurp_extended_name_table |
252b5132 | 2847 | #define bfd_elf64_archive_construct_extended_name_table \ |
c6e90b02 | 2848 | _bfd_archive_coff_construct_extended_name_table |
252b5132 | 2849 | #define bfd_elf64_archive_truncate_arname \ |
c6e90b02 | 2850 | _bfd_archive_coff_truncate_arname |
252b5132 RH |
2851 | #define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr |
2852 | #define bfd_elf64_archive_openr_next_archived_file \ | |
c6e90b02 | 2853 | _bfd_archive_coff_openr_next_archived_file |
252b5132 | 2854 | #define bfd_elf64_archive_get_elt_at_index \ |
c6e90b02 | 2855 | _bfd_archive_coff_get_elt_at_index |
252b5132 | 2856 | #define bfd_elf64_archive_generic_stat_arch_elt \ |
c6e90b02 | 2857 | _bfd_archive_coff_generic_stat_arch_elt |
252b5132 | 2858 | #define bfd_elf64_archive_update_armap_timestamp \ |
c6e90b02 | 2859 | _bfd_archive_coff_update_armap_timestamp |
252b5132 | 2860 | |
5b6a02bc TS |
2861 | /* The SGI style (n)64 NewABI. */ |
2862 | #define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec | |
2863 | #define TARGET_LITTLE_NAME "elf64-littlemips" | |
2864 | #define TARGET_BIG_SYM bfd_elf64_bigmips_vec | |
2865 | #define TARGET_BIG_NAME "elf64-bigmips" | |
fdbafa10 | 2866 | |
5b6a02bc | 2867 | #include "elf64-target.h" |
fdbafa10 | 2868 | |
5b6a02bc | 2869 | #define INCLUDED_TARGET_FILE /* More a type of flag. */ |
fdbafa10 | 2870 | |
5b6a02bc | 2871 | /* The SYSV-style 'traditional' (n)64 NewABI. */ |
fdbafa10 L |
2872 | #undef TARGET_LITTLE_SYM |
2873 | #undef TARGET_LITTLE_NAME | |
2874 | #undef TARGET_BIG_SYM | |
2875 | #undef TARGET_BIG_NAME | |
2876 | ||
2877 | #define TARGET_LITTLE_SYM bfd_elf64_tradlittlemips_vec | |
2878 | #define TARGET_LITTLE_NAME "elf64-tradlittlemips" | |
2879 | #define TARGET_BIG_SYM bfd_elf64_tradbigmips_vec | |
2880 | #define TARGET_BIG_NAME "elf64-tradbigmips" | |
2881 | ||
5b6a02bc | 2882 | /* Include the target file again for this target. */ |
fdbafa10 | 2883 | #include "elf64-target.h" |