Patrick Williams | c124f4f | 2015-09-15 14:41:29 -0500 | [diff] [blame] | 1 | Upstream-Status: Backport |
| 2 | |
| 3 | Index: elfutils-0.145/backends/mips_init.c |
| 4 | =================================================================== |
| 5 | --- /dev/null 1970-01-01 00:00:00.000000000 +0000 |
| 6 | +++ elfutils-0.145/backends/mips_init.c 2010-02-24 18:57:35.000000000 +0000 |
| 7 | @@ -0,0 +1,60 @@ |
| 8 | +/* Initialization of mips specific backend library. |
| 9 | + Copyright (C) 2006 Red Hat, Inc. |
| 10 | + This file is part of Red Hat elfutils. |
| 11 | + |
| 12 | + Red Hat elfutils is free software; you can redistribute it and/or modify |
| 13 | + it under the terms of the GNU General Public License as published by the |
| 14 | + Free Software Foundation; version 2 of the License. |
| 15 | + |
| 16 | + Red Hat elfutils is distributed in the hope that it will be useful, but |
| 17 | + WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 19 | + General Public License for more details. |
| 20 | + |
| 21 | + You should have received a copy of the GNU General Public License along |
| 22 | + with Red Hat elfutils; if not, write to the Free Software Foundation, |
| 23 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| 24 | + |
| 25 | + Red Hat elfutils is an included package of the Open Invention Network. |
| 26 | + An included package of the Open Invention Network is a package for which |
| 27 | + Open Invention Network licensees cross-license their patents. No patent |
| 28 | + license is granted, either expressly or impliedly, by designation as an |
| 29 | + included package. Should you wish to participate in the Open Invention |
| 30 | + Network licensing program, please visit www.openinventionnetwork.com |
| 31 | + <http://www.openinventionnetwork.com>. */ |
| 32 | + |
| 33 | +#ifdef HAVE_CONFIG_H |
| 34 | +# include <config.h> |
| 35 | +#endif |
| 36 | + |
| 37 | +#define BACKEND mips_ |
| 38 | +#define RELOC_PREFIX R_MIPS_ |
| 39 | +#include "libebl_CPU.h" |
| 40 | + |
| 41 | +/* This defines the common reloc hooks based on mips_reloc.def. */ |
| 42 | +#include "common-reloc.c" |
| 43 | + |
| 44 | +const char * |
| 45 | +mips_init (elf, machine, eh, ehlen) |
| 46 | + Elf *elf __attribute__ ((unused)); |
| 47 | + GElf_Half machine __attribute__ ((unused)); |
| 48 | + Ebl *eh; |
| 49 | + size_t ehlen; |
| 50 | +{ |
| 51 | + /* Check whether the Elf_BH object has a sufficent size. */ |
| 52 | + if (ehlen < sizeof (Ebl)) |
| 53 | + return NULL; |
| 54 | + |
| 55 | + /* We handle it. */ |
| 56 | + if (machine == EM_MIPS) |
| 57 | + eh->name = "MIPS R3000 big-endian"; |
| 58 | + else if (machine == EM_MIPS_RS3_LE) |
| 59 | + eh->name = "MIPS R3000 little-endian"; |
| 60 | + |
| 61 | + mips_init_reloc (eh); |
| 62 | + HOOK (eh, reloc_simple_type); |
| 63 | + HOOK (eh, return_value_location); |
| 64 | + HOOK (eh, register_info); |
| 65 | + |
| 66 | + return MODVERSION; |
| 67 | +} |
| 68 | Index: elfutils-0.145/backends/mips_regs.c |
| 69 | =================================================================== |
| 70 | --- /dev/null 1970-01-01 00:00:00.000000000 +0000 |
| 71 | +++ elfutils-0.145/backends/mips_regs.c 2010-02-24 18:57:35.000000000 +0000 |
| 72 | @@ -0,0 +1,104 @@ |
| 73 | +/* Register names and numbers for MIPS DWARF. |
| 74 | + Copyright (C) 2006 Red Hat, Inc. |
| 75 | + This file is part of Red Hat elfutils. |
| 76 | + |
| 77 | + Red Hat elfutils is free software; you can redistribute it and/or modify |
| 78 | + it under the terms of the GNU General Public License as published by the |
| 79 | + Free Software Foundation; version 2 of the License. |
| 80 | + |
| 81 | + Red Hat elfutils is distributed in the hope that it will be useful, but |
| 82 | + WITHOUT ANY WARRANTY; without even the implied warranty of |
| 83 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 84 | + General Public License for more details. |
| 85 | + |
| 86 | + You should have received a copy of the GNU General Public License along |
| 87 | + with Red Hat elfutils; if not, write to the Free Software Foundation, |
| 88 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| 89 | + |
| 90 | + Red Hat elfutils is an included package of the Open Invention Network. |
| 91 | + An included package of the Open Invention Network is a package for which |
| 92 | + Open Invention Network licensees cross-license their patents. No patent |
| 93 | + license is granted, either expressly or impliedly, by designation as an |
| 94 | + included package. Should you wish to participate in the Open Invention |
| 95 | + Network licensing program, please visit www.openinventionnetwork.com |
| 96 | + <http://www.openinventionnetwork.com>. */ |
| 97 | + |
| 98 | +#ifdef HAVE_CONFIG_H |
| 99 | +# include <config.h> |
| 100 | +#endif |
| 101 | + |
| 102 | +#include <string.h> |
| 103 | +#include <dwarf.h> |
| 104 | + |
| 105 | +#define BACKEND mips_ |
| 106 | +#include "libebl_CPU.h" |
| 107 | + |
| 108 | +ssize_t |
| 109 | +mips_register_info (Ebl *ebl __attribute__((unused)), |
| 110 | + int regno, char *name, size_t namelen, |
| 111 | + const char **prefix, const char **setname, |
| 112 | + int *bits, int *type) |
| 113 | +{ |
| 114 | + if (name == NULL) |
| 115 | + return 66; |
| 116 | + |
| 117 | + if (regno < 0 || regno > 65 || namelen < 4) |
| 118 | + return -1; |
| 119 | + |
| 120 | + *prefix = "$"; |
| 121 | + |
| 122 | + if (regno < 32) |
| 123 | + { |
| 124 | + *setname = "integer"; |
| 125 | + *type = DW_ATE_signed; |
| 126 | + *bits = 32; |
| 127 | + if (regno < 32 + 10) |
| 128 | + { |
| 129 | + name[0] = regno + '0'; |
| 130 | + namelen = 1; |
| 131 | + } |
| 132 | + else |
| 133 | + { |
| 134 | + name[0] = (regno / 10) + '0'; |
| 135 | + name[1] = (regno % 10) + '0'; |
| 136 | + namelen = 2; |
| 137 | + } |
| 138 | + } |
| 139 | + else if (regno < 64) |
| 140 | + { |
| 141 | + *setname = "FPU"; |
| 142 | + *type = DW_ATE_float; |
| 143 | + *bits = 32; |
| 144 | + name[0] = 'f'; |
| 145 | + if (regno < 32 + 10) |
| 146 | + { |
| 147 | + name[1] = (regno - 32) + '0'; |
| 148 | + namelen = 2; |
| 149 | + } |
| 150 | + else |
| 151 | + { |
| 152 | + name[1] = (regno - 32) / 10 + '0'; |
| 153 | + name[2] = (regno - 32) % 10 + '0'; |
| 154 | + namelen = 3; |
| 155 | + } |
| 156 | + } |
| 157 | + else if (regno == 64) |
| 158 | + { |
| 159 | + *type = DW_ATE_signed; |
| 160 | + *bits = 32; |
| 161 | + name[0] = 'h'; |
| 162 | + name[1] = 'i'; |
| 163 | + namelen = 2; |
| 164 | + } |
| 165 | + else |
| 166 | + { |
| 167 | + *type = DW_ATE_signed; |
| 168 | + *bits = 32; |
| 169 | + name[0] = 'l'; |
| 170 | + name[1] = 'o'; |
| 171 | + namelen = 2; |
| 172 | + } |
| 173 | + |
| 174 | + name[namelen++] = '\0'; |
| 175 | + return namelen; |
| 176 | +} |
| 177 | Index: elfutils-0.145/backends/mips_reloc.def |
| 178 | =================================================================== |
| 179 | --- /dev/null 1970-01-01 00:00:00.000000000 +0000 |
| 180 | +++ elfutils-0.145/backends/mips_reloc.def 2010-02-24 18:57:35.000000000 +0000 |
| 181 | @@ -0,0 +1,79 @@ |
| 182 | +/* List the relocation types for mips. -*- C -*- |
| 183 | + Copyright (C) 2006 Red Hat, Inc. |
| 184 | + This file is part of Red Hat elfutils. |
| 185 | + |
| 186 | + Red Hat elfutils is free software; you can redistribute it and/or modify |
| 187 | + it under the terms of the GNU General Public License as published by the |
| 188 | + Free Software Foundation; version 2 of the License. |
| 189 | + |
| 190 | + Red Hat elfutils is distributed in the hope that it will be useful, but |
| 191 | + WITHOUT ANY WARRANTY; without even the implied warranty of |
| 192 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 193 | + General Public License for more details. |
| 194 | + |
| 195 | + You should have received a copy of the GNU General Public License along |
| 196 | + with Red Hat elfutils; if not, write to the Free Software Foundation, |
| 197 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| 198 | + |
| 199 | + Red Hat elfutils is an included package of the Open Invention Network. |
| 200 | + An included package of the Open Invention Network is a package for which |
| 201 | + Open Invention Network licensees cross-license their patents. No patent |
| 202 | + license is granted, either expressly or impliedly, by designation as an |
| 203 | + included package. Should you wish to participate in the Open Invention |
| 204 | + Network licensing program, please visit www.openinventionnetwork.com |
| 205 | + <http://www.openinventionnetwork.com>. */ |
| 206 | + |
| 207 | +/* NAME, REL|EXEC|DYN */ |
| 208 | + |
| 209 | +RELOC_TYPE (NONE, 0) |
| 210 | +RELOC_TYPE (16, 0) |
| 211 | +RELOC_TYPE (32, 0) |
| 212 | +RELOC_TYPE (REL32, 0) |
| 213 | +RELOC_TYPE (26, 0) |
| 214 | +RELOC_TYPE (HI16, 0) |
| 215 | +RELOC_TYPE (LO16, 0) |
| 216 | +RELOC_TYPE (GPREL16, 0) |
| 217 | +RELOC_TYPE (LITERAL, 0) |
| 218 | +RELOC_TYPE (GOT16, 0) |
| 219 | +RELOC_TYPE (PC16, 0) |
| 220 | +RELOC_TYPE (CALL16, 0) |
| 221 | +RELOC_TYPE (GPREL32, 0) |
| 222 | + |
| 223 | +RELOC_TYPE (SHIFT5, 0) |
| 224 | +RELOC_TYPE (SHIFT6, 0) |
| 225 | +RELOC_TYPE (64, 0) |
| 226 | +RELOC_TYPE (GOT_DISP, 0) |
| 227 | +RELOC_TYPE (GOT_PAGE, 0) |
| 228 | +RELOC_TYPE (GOT_OFST, 0) |
| 229 | +RELOC_TYPE (GOT_HI16, 0) |
| 230 | +RELOC_TYPE (GOT_LO16, 0) |
| 231 | +RELOC_TYPE (SUB, 0) |
| 232 | +RELOC_TYPE (INSERT_A, 0) |
| 233 | +RELOC_TYPE (INSERT_B, 0) |
| 234 | +RELOC_TYPE (DELETE, 0) |
| 235 | +RELOC_TYPE (HIGHER, 0) |
| 236 | +RELOC_TYPE (HIGHEST, 0) |
| 237 | +RELOC_TYPE (CALL_HI16, 0) |
| 238 | +RELOC_TYPE (CALL_LO16, 0) |
| 239 | +RELOC_TYPE (SCN_DISP, 0) |
| 240 | +RELOC_TYPE (REL16, 0) |
| 241 | +RELOC_TYPE (ADD_IMMEDIATE, 0) |
| 242 | +RELOC_TYPE (PJUMP, 0) |
| 243 | +RELOC_TYPE (RELGOT, 0) |
| 244 | +RELOC_TYPE (JALR, 0) |
| 245 | +RELOC_TYPE (TLS_DTPMOD32, 0) |
| 246 | +RELOC_TYPE (TLS_DTPREL32, 0) |
| 247 | +RELOC_TYPE (TLS_DTPMOD64, 0) |
| 248 | +RELOC_TYPE (TLS_DTPREL64, 0) |
| 249 | +RELOC_TYPE (TLS_GD, 0) |
| 250 | +RELOC_TYPE (TLS_LDM, 0) |
| 251 | +RELOC_TYPE (TLS_DTPREL_HI16, 0) |
| 252 | +RELOC_TYPE (TLS_DTPREL_LO16, 0) |
| 253 | +RELOC_TYPE (TLS_GOTTPREL, 0) |
| 254 | +RELOC_TYPE (TLS_TPREL32, 0) |
| 255 | +RELOC_TYPE (TLS_TPREL64, 0) |
| 256 | +RELOC_TYPE (TLS_TPREL_HI16, 0) |
| 257 | +RELOC_TYPE (TLS_TPREL_LO16, 0) |
| 258 | + |
| 259 | +#define NO_COPY_RELOC 1 |
| 260 | +#define NO_RELATIVE_RELOC 1 |
| 261 | Index: elfutils-0.145/backends/mips_retval.c |
| 262 | =================================================================== |
| 263 | --- /dev/null 1970-01-01 00:00:00.000000000 +0000 |
| 264 | +++ elfutils-0.145/backends/mips_retval.c 2010-02-24 18:57:35.000000000 +0000 |
| 265 | @@ -0,0 +1,321 @@ |
| 266 | +/* Function return value location for Linux/mips ABI. |
| 267 | + Copyright (C) 2005 Red Hat, Inc. |
| 268 | + This file is part of Red Hat elfutils. |
| 269 | + |
| 270 | + Red Hat elfutils is free software; you can redistribute it and/or modify |
| 271 | + it under the terms of the GNU General Public License as published by the |
| 272 | + Free Software Foundation; version 2 of the License. |
| 273 | + |
| 274 | + Red Hat elfutils is distributed in the hope that it will be useful, but |
| 275 | + WITHOUT ANY WARRANTY; without even the implied warranty of |
| 276 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 277 | + General Public License for more details. |
| 278 | + |
| 279 | + You should have received a copy of the GNU General Public License along |
| 280 | + with Red Hat elfutils; if not, write to the Free Software Foundation, |
| 281 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| 282 | + |
| 283 | + Red Hat elfutils is an included package of the Open Invention Network. |
| 284 | + An included package of the Open Invention Network is a package for which |
| 285 | + Open Invention Network licensees cross-license their patents. No patent |
| 286 | + license is granted, either expressly or impliedly, by designation as an |
| 287 | + included package. Should you wish to participate in the Open Invention |
| 288 | + Network licensing program, please visit www.openinventionnetwork.com |
| 289 | + <http://www.openinventionnetwork.com>. */ |
| 290 | + |
| 291 | +#ifdef HAVE_CONFIG_H |
| 292 | +# include <config.h> |
| 293 | +#endif |
| 294 | + |
| 295 | +#include <string.h> |
| 296 | +#include <assert.h> |
| 297 | +#include <dwarf.h> |
| 298 | +#include <elf.h> |
| 299 | + |
| 300 | +#include "../libebl/libeblP.h" |
| 301 | +#include "../libdw/libdwP.h" |
| 302 | + |
| 303 | +#define BACKEND mips_ |
| 304 | +#include "libebl_CPU.h" |
| 305 | + |
| 306 | +/* The ABI of the file. Also see EF_MIPS_ABI2 above. */ |
| 307 | +#define EF_MIPS_ABI 0x0000F000 |
| 308 | + |
| 309 | +/* The original o32 abi. */ |
| 310 | +#define E_MIPS_ABI_O32 0x00001000 |
| 311 | + |
| 312 | +/* O32 extended to work on 64 bit architectures */ |
| 313 | +#define E_MIPS_ABI_O64 0x00002000 |
| 314 | + |
| 315 | +/* EABI in 32 bit mode */ |
| 316 | +#define E_MIPS_ABI_EABI32 0x00003000 |
| 317 | + |
| 318 | +/* EABI in 64 bit mode */ |
| 319 | +#define E_MIPS_ABI_EABI64 0x00004000 |
| 320 | + |
| 321 | +/* All the possible MIPS ABIs. */ |
| 322 | +enum mips_abi |
| 323 | + { |
| 324 | + MIPS_ABI_UNKNOWN = 0, |
| 325 | + MIPS_ABI_N32, |
| 326 | + MIPS_ABI_O32, |
| 327 | + MIPS_ABI_N64, |
| 328 | + MIPS_ABI_O64, |
| 329 | + MIPS_ABI_EABI32, |
| 330 | + MIPS_ABI_EABI64, |
| 331 | + MIPS_ABI_LAST |
| 332 | + }; |
| 333 | + |
| 334 | +/* Find the mips ABI of the current file */ |
| 335 | +enum mips_abi find_mips_abi(Elf *elf) |
| 336 | +{ |
| 337 | + GElf_Ehdr ehdr_mem; |
| 338 | + GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem); |
| 339 | + |
| 340 | + if (ehdr == NULL) |
| 341 | + return MIPS_ABI_LAST; |
| 342 | + |
| 343 | + GElf_Word elf_flags = ehdr->e_flags; |
| 344 | + |
| 345 | + /* Check elf_flags to see if it specifies the ABI being used. */ |
| 346 | + switch ((elf_flags & EF_MIPS_ABI)) |
| 347 | + { |
| 348 | + case E_MIPS_ABI_O32: |
| 349 | + return MIPS_ABI_O32; |
| 350 | + case E_MIPS_ABI_O64: |
| 351 | + return MIPS_ABI_O64; |
| 352 | + case E_MIPS_ABI_EABI32: |
| 353 | + return MIPS_ABI_EABI32; |
| 354 | + case E_MIPS_ABI_EABI64: |
| 355 | + return MIPS_ABI_EABI64; |
| 356 | + default: |
| 357 | + if ((elf_flags & EF_MIPS_ABI2)) |
| 358 | + return MIPS_ABI_N32; |
| 359 | + } |
| 360 | + |
| 361 | + /* GCC creates a pseudo-section whose name describes the ABI. */ |
| 362 | + size_t shstrndx; |
| 363 | + if (elf_getshdrstrndx (elf, &shstrndx) < 0) |
| 364 | + return MIPS_ABI_LAST; |
| 365 | + |
| 366 | + const char *name; |
| 367 | + Elf_Scn *scn = NULL; |
| 368 | + while ((scn = elf_nextscn (elf, scn)) != NULL) |
| 369 | + { |
| 370 | + GElf_Shdr shdr_mem; |
| 371 | + GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem); |
| 372 | + if (shdr == NULL) |
| 373 | + return MIPS_ABI_LAST; |
| 374 | + |
| 375 | + name = elf_strptr (elf, shstrndx, shdr->sh_name) ?: ""; |
| 376 | + if (strncmp (name, ".mdebug.", 8) != 0) |
| 377 | + continue; |
| 378 | + |
| 379 | + if (strcmp (name, ".mdebug.abi32") == 0) |
| 380 | + return MIPS_ABI_O32; |
| 381 | + else if (strcmp (name, ".mdebug.abiN32") == 0) |
| 382 | + return MIPS_ABI_N32; |
| 383 | + else if (strcmp (name, ".mdebug.abi64") == 0) |
| 384 | + return MIPS_ABI_N64; |
| 385 | + else if (strcmp (name, ".mdebug.abiO64") == 0) |
| 386 | + return MIPS_ABI_O64; |
| 387 | + else if (strcmp (name, ".mdebug.eabi32") == 0) |
| 388 | + return MIPS_ABI_EABI32; |
| 389 | + else if (strcmp (name, ".mdebug.eabi64") == 0) |
| 390 | + return MIPS_ABI_EABI64; |
| 391 | + else |
| 392 | + return MIPS_ABI_UNKNOWN; |
| 393 | + } |
| 394 | + |
| 395 | + return MIPS_ABI_UNKNOWN; |
| 396 | +} |
| 397 | + |
| 398 | +unsigned int |
| 399 | +mips_abi_regsize (enum mips_abi abi) |
| 400 | +{ |
| 401 | + switch (abi) |
| 402 | + { |
| 403 | + case MIPS_ABI_EABI32: |
| 404 | + case MIPS_ABI_O32: |
| 405 | + return 4; |
| 406 | + case MIPS_ABI_N32: |
| 407 | + case MIPS_ABI_N64: |
| 408 | + case MIPS_ABI_O64: |
| 409 | + case MIPS_ABI_EABI64: |
| 410 | + return 8; |
| 411 | + case MIPS_ABI_UNKNOWN: |
| 412 | + case MIPS_ABI_LAST: |
| 413 | + default: |
| 414 | + return 0; |
| 415 | + } |
| 416 | +} |
| 417 | + |
| 418 | + |
| 419 | +/* $v0 or pair $v0, $v1 */ |
| 420 | +static const Dwarf_Op loc_intreg_o32[] = |
| 421 | + { |
| 422 | + { .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 4 }, |
| 423 | + { .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 4 }, |
| 424 | + }; |
| 425 | + |
| 426 | +static const Dwarf_Op loc_intreg[] = |
| 427 | + { |
| 428 | + { .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 8 }, |
| 429 | + { .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 8 }, |
| 430 | + }; |
| 431 | +#define nloc_intreg 1 |
| 432 | +#define nloc_intregpair 4 |
| 433 | + |
| 434 | +/* $f0 (float), or pair $f0, $f1 (double). |
| 435 | + * f2/f3 are used for COMPLEX (= 2 doubles) returns in Fortran */ |
| 436 | +static const Dwarf_Op loc_fpreg_o32[] = |
| 437 | + { |
| 438 | + { .atom = DW_OP_regx, .number = 32 }, { .atom = DW_OP_piece, .number = 4 }, |
| 439 | + { .atom = DW_OP_regx, .number = 33 }, { .atom = DW_OP_piece, .number = 4 }, |
| 440 | + { .atom = DW_OP_regx, .number = 34 }, { .atom = DW_OP_piece, .number = 4 }, |
| 441 | + { .atom = DW_OP_regx, .number = 35 }, { .atom = DW_OP_piece, .number = 4 }, |
| 442 | + }; |
| 443 | + |
| 444 | +/* $f0, or pair $f0, $f2. */ |
| 445 | +static const Dwarf_Op loc_fpreg[] = |
| 446 | + { |
| 447 | + { .atom = DW_OP_regx, .number = 32 }, { .atom = DW_OP_piece, .number = 8 }, |
| 448 | + { .atom = DW_OP_regx, .number = 34 }, { .atom = DW_OP_piece, .number = 8 }, |
| 449 | + }; |
| 450 | +#define nloc_fpreg 1 |
| 451 | +#define nloc_fpregpair 4 |
| 452 | +#define nloc_fpregquad 8 |
| 453 | + |
| 454 | +/* The return value is a structure and is actually stored in stack space |
| 455 | + passed in a hidden argument by the caller. But, the compiler |
| 456 | + helpfully returns the address of that space in $v0. */ |
| 457 | +static const Dwarf_Op loc_aggregate[] = |
| 458 | + { |
| 459 | + { .atom = DW_OP_breg2, .number = 0 } |
| 460 | + }; |
| 461 | +#define nloc_aggregate 1 |
| 462 | + |
| 463 | +int |
| 464 | +mips_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp) |
| 465 | +{ |
| 466 | + /* First find the ABI used by the elf object */ |
| 467 | + enum mips_abi abi = find_mips_abi(functypedie->cu->dbg->elf); |
| 468 | + |
| 469 | + /* Something went seriously wrong while trying to figure out the ABI */ |
| 470 | + if (abi == MIPS_ABI_LAST) |
| 471 | + return -1; |
| 472 | + |
| 473 | + /* We couldn't identify the ABI, but the file seems valid */ |
| 474 | + if (abi == MIPS_ABI_UNKNOWN) |
| 475 | + return -2; |
| 476 | + |
| 477 | + /* Can't handle EABI variants */ |
| 478 | + if ((abi == MIPS_ABI_EABI32) || (abi == MIPS_ABI_EABI64)) |
| 479 | + return -2; |
| 480 | + |
| 481 | + unsigned int regsize = mips_abi_regsize (abi); |
| 482 | + if (!regsize) |
| 483 | + return -2; |
| 484 | + |
| 485 | + /* Start with the function's type, and get the DW_AT_type attribute, |
| 486 | + which is the type of the return value. */ |
| 487 | + |
| 488 | + Dwarf_Attribute attr_mem; |
| 489 | + Dwarf_Attribute *attr = dwarf_attr_integrate (functypedie, DW_AT_type, &attr_mem); |
| 490 | + if (attr == NULL) |
| 491 | + /* The function has no return value, like a `void' function in C. */ |
| 492 | + return 0; |
| 493 | + |
| 494 | + Dwarf_Die die_mem; |
| 495 | + Dwarf_Die *typedie = dwarf_formref_die (attr, &die_mem); |
| 496 | + int tag = dwarf_tag (typedie); |
| 497 | + |
| 498 | + /* Follow typedefs and qualifiers to get to the actual type. */ |
| 499 | + while (tag == DW_TAG_typedef |
| 500 | + || tag == DW_TAG_const_type || tag == DW_TAG_volatile_type |
| 501 | + || tag == DW_TAG_restrict_type || tag == DW_TAG_mutable_type) |
| 502 | + { |
| 503 | + attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem); |
| 504 | + typedie = dwarf_formref_die (attr, &die_mem); |
| 505 | + tag = dwarf_tag (typedie); |
| 506 | + } |
| 507 | + |
| 508 | + switch (tag) |
| 509 | + { |
| 510 | + case -1: |
| 511 | + return -1; |
| 512 | + |
| 513 | + case DW_TAG_subrange_type: |
| 514 | + if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size)) |
| 515 | + { |
| 516 | + attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem); |
| 517 | + typedie = dwarf_formref_die (attr, &die_mem); |
| 518 | + tag = dwarf_tag (typedie); |
| 519 | + } |
| 520 | + /* Fall through. */ |
| 521 | + |
| 522 | + case DW_TAG_base_type: |
| 523 | + case DW_TAG_enumeration_type: |
| 524 | + case DW_TAG_pointer_type: |
| 525 | + case DW_TAG_ptr_to_member_type: |
| 526 | + { |
| 527 | + Dwarf_Word size; |
| 528 | + if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size, |
| 529 | + &attr_mem), &size) != 0) |
| 530 | + { |
| 531 | + if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type) |
| 532 | + size = regsize; |
| 533 | + else |
| 534 | + return -1; |
| 535 | + } |
| 536 | + if (tag == DW_TAG_base_type) |
| 537 | + { |
| 538 | + Dwarf_Word encoding; |
| 539 | + if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding, |
| 540 | + &attr_mem), &encoding) != 0) |
| 541 | + return -1; |
| 542 | + |
| 543 | +#define ABI_LOC(loc, regsize) ((regsize) == 4 ? (loc ## _o32) : (loc)) |
| 544 | + |
| 545 | + if (encoding == DW_ATE_float) |
| 546 | + { |
| 547 | + *locp = ABI_LOC(loc_fpreg, regsize); |
| 548 | + if (size <= regsize) |
| 549 | + return nloc_fpreg; |
| 550 | + |
| 551 | + if (size <= 2*regsize) |
| 552 | + return nloc_fpregpair; |
| 553 | + |
| 554 | + if (size <= 4*regsize && abi == MIPS_ABI_O32) |
| 555 | + return nloc_fpregquad; |
| 556 | + |
| 557 | + goto aggregate; |
| 558 | + } |
| 559 | + } |
| 560 | + *locp = ABI_LOC(loc_intreg, regsize); |
| 561 | + if (size <= regsize) |
| 562 | + return nloc_intreg; |
| 563 | + if (size <= 2*regsize) |
| 564 | + return nloc_intregpair; |
| 565 | + |
| 566 | + /* Else fall through. Shouldn't happen though (at least with gcc) */ |
| 567 | + } |
| 568 | + |
| 569 | + case DW_TAG_structure_type: |
| 570 | + case DW_TAG_class_type: |
| 571 | + case DW_TAG_union_type: |
| 572 | + case DW_TAG_array_type: |
| 573 | + aggregate: |
| 574 | + /* XXX TODO: Can't handle structure return with other ABI's yet :-/ */ |
| 575 | + if ((abi != MIPS_ABI_O32) && (abi != MIPS_ABI_O64)) |
| 576 | + return -2; |
| 577 | + |
| 578 | + *locp = loc_aggregate; |
| 579 | + return nloc_aggregate; |
| 580 | + } |
| 581 | + |
| 582 | + /* XXX We don't have a good way to return specific errors from ebl calls. |
| 583 | + This value means we do not understand the type, but it is well-formed |
| 584 | + DWARF and might be valid. */ |
| 585 | + return -2; |
| 586 | +} |
| 587 | Index: elfutils-0.145/backends/mips_symbol.c |
| 588 | =================================================================== |
| 589 | --- /dev/null 1970-01-01 00:00:00.000000000 +0000 |
| 590 | +++ elfutils-0.145/backends/mips_symbol.c 2010-02-24 18:57:35.000000000 +0000 |
| 591 | @@ -0,0 +1,52 @@ |
| 592 | +/* MIPS specific symbolic name handling. |
| 593 | + Copyright (C) 2002, 2003, 2005 Red Hat, Inc. |
| 594 | + This file is part of Red Hat elfutils. |
| 595 | + Written by Jakub Jelinek <jakub@redhat.com>, 2002. |
| 596 | + |
| 597 | + Red Hat elfutils is free software; you can redistribute it and/or modify |
| 598 | + it under the terms of the GNU General Public License as published by the |
| 599 | + Free Software Foundation; version 2 of the License. |
| 600 | + |
| 601 | + Red Hat elfutils is distributed in the hope that it will be useful, but |
| 602 | + WITHOUT ANY WARRANTY; without even the implied warranty of |
| 603 | + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 604 | + General Public License for more details. |
| 605 | + |
| 606 | + You should have received a copy of the GNU General Public License along |
| 607 | + with Red Hat elfutils; if not, write to the Free Software Foundation, |
| 608 | + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| 609 | + |
| 610 | + Red Hat elfutils is an included package of the Open Invention Network. |
| 611 | + An included package of the Open Invention Network is a package for which |
| 612 | + Open Invention Network licensees cross-license their patents. No patent |
| 613 | + license is granted, either expressly or impliedly, by designation as an |
| 614 | + included package. Should you wish to participate in the Open Invention |
| 615 | + Network licensing program, please visit www.openinventionnetwork.com |
| 616 | + <http://www.openinventionnetwork.com>. */ |
| 617 | + |
| 618 | +#ifdef HAVE_CONFIG_H |
| 619 | +# include <config.h> |
| 620 | +#endif |
| 621 | + |
| 622 | +#include <elf.h> |
| 623 | +#include <stddef.h> |
| 624 | + |
| 625 | +#define BACKEND mips_ |
| 626 | +#include "libebl_CPU.h" |
| 627 | + |
| 628 | +/* Check for the simple reloc types. */ |
| 629 | +Elf_Type |
| 630 | +mips_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type) |
| 631 | +{ |
| 632 | + switch (type) |
| 633 | + { |
| 634 | + case R_MIPS_16: |
| 635 | + return ELF_T_HALF; |
| 636 | + case R_MIPS_32: |
| 637 | + return ELF_T_WORD; |
| 638 | + case R_MIPS_64: |
| 639 | + return ELF_T_XWORD; |
| 640 | + default: |
| 641 | + return ELF_T_NUM; |
| 642 | + } |
| 643 | +} |
| 644 | Index: elfutils-0.145/libebl/eblopenbackend.c |
| 645 | =================================================================== |
| 646 | --- elfutils-0.145.orig/libebl/eblopenbackend.c 2010-02-24 18:55:51.000000000 +0000 |
| 647 | +++ elfutils-0.145/libebl/eblopenbackend.c 2010-02-24 18:57:35.000000000 +0000 |
| 648 | @@ -91,6 +91,8 @@ |
| 649 | { "sparc", "elf_sparc", "sparc", 5, EM_SPARC, 0, 0 }, |
| 650 | { "sparc", "elf_sparcv8plus", "sparc", 5, EM_SPARC32PLUS, 0, 0 }, |
| 651 | { "s390", "ebl_s390", "s390", 4, EM_S390, 0, 0 }, |
| 652 | + { "mips", "elf_mips", "mips", 4, EM_MIPS, 0, 0 }, |
| 653 | + { "mips", "elf_mipsel", "mipsel", 4, EM_MIPS_RS3_LE, 0, 0 }, |
| 654 | |
| 655 | { "m32", "elf_m32", "m32", 3, EM_M32, 0, 0 }, |
| 656 | { "m68k", "elf_m68k", "m68k", 4, EM_68K, 0, 0 }, |
| 657 | Index: elfutils-0.145/backends/common-reloc.c |
| 658 | =================================================================== |
| 659 | --- elfutils-0.145.orig/backends/common-reloc.c 2010-02-24 18:55:51.000000000 +0000 |
| 660 | +++ elfutils-0.145/backends/common-reloc.c 2010-02-24 18:57:35.000000000 +0000 |
| 661 | @@ -109,11 +109,13 @@ |
| 662 | } |
| 663 | |
| 664 | |
| 665 | +#ifndef NO_COPY_RELOC |
| 666 | bool |
| 667 | EBLHOOK(copy_reloc_p) (int reloc) |
| 668 | { |
| 669 | return reloc == R_TYPE (COPY); |
| 670 | } |
| 671 | +#endif |
| 672 | |
| 673 | bool |
| 674 | EBLHOOK(none_reloc_p) (int reloc) |
| 675 | @@ -135,7 +137,9 @@ |
| 676 | ebl->reloc_type_name = EBLHOOK(reloc_type_name); |
| 677 | ebl->reloc_type_check = EBLHOOK(reloc_type_check); |
| 678 | ebl->reloc_valid_use = EBLHOOK(reloc_valid_use); |
| 679 | +#ifndef NO_COPY_RELOC |
| 680 | ebl->copy_reloc_p = EBLHOOK(copy_reloc_p); |
| 681 | +#endif |
| 682 | ebl->none_reloc_p = EBLHOOK(none_reloc_p); |
| 683 | #ifndef NO_RELATIVE_RELOC |
| 684 | ebl->relative_reloc_p = EBLHOOK(relative_reloc_p); |
| 685 | Index: elfutils-0.145/backends/Makefile.am |
| 686 | =================================================================== |
| 687 | --- elfutils-0.145.orig/backends/Makefile.am 2010-02-24 18:57:26.000000000 +0000 |
| 688 | +++ elfutils-0.145/backends/Makefile.am 2010-02-24 18:57:57.000000000 +0000 |
| 689 | @@ -29,11 +29,11 @@ |
| 690 | -I$(top_srcdir)/libelf -I$(top_srcdir)/libdw |
| 691 | |
| 692 | |
| 693 | -modules = i386 sh x86_64 ia64 alpha arm sparc ppc ppc64 s390 parisc |
| 694 | +modules = i386 sh x86_64 ia64 alpha arm sparc ppc ppc64 s390 parisc mips |
| 695 | libebl_pic = libebl_i386_pic.a libebl_sh_pic.a libebl_x86_64_pic.a \ |
| 696 | libebl_ia64_pic.a libebl_alpha_pic.a libebl_arm_pic.a \ |
| 697 | libebl_sparc_pic.a libebl_ppc_pic.a libebl_ppc64_pic.a \ |
| 698 | - libebl_s390_pic.a libebl_parisc_pic.a |
| 699 | + libebl_s390_pic.a libebl_parisc_pic.a libebl_mips_pic.a |
| 700 | noinst_LIBRARIES = $(libebl_pic) |
| 701 | noinst_DATA = $(libebl_pic:_pic.a=.so) |
| 702 | |
| 703 | @@ -99,6 +99,10 @@ |
| 704 | libebl_parisc_pic_a_SOURCES = $(parisc_SRCS) |
| 705 | am_libebl_parisc_pic_a_OBJECTS = $(parisc_SRCS:.c=.os) |
| 706 | |
| 707 | +mips_SRCS = mips_init.c mips_symbol.c mips_regs.c mips_retval.c |
| 708 | +libebl_mips_pic_a_SOURCES = $(mips_SRCS) |
| 709 | +am_libebl_mips_pic_a_OBJECTS = $(mips_SRCS:.c=.os) |
| 710 | + |
| 711 | libebl_%.so libebl_%.map: libebl_%_pic.a $(libelf) $(libdw) |
| 712 | @rm -f $(@:.so=.map) |
| 713 | echo 'ELFUTILS_$(PACKAGE_VERSION) { global: $*_init; local: *; };' \ |