mn10300-linux-tdep.c revision 1.7
1/* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger. 2 3 Copyright (C) 2003-2017 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20#include "defs.h" 21#include "gdbcore.h" 22#include "regcache.h" 23#include "mn10300-tdep.h" 24#include "bfd.h" 25#include "elf-bfd.h" 26#include "osabi.h" 27#include "regset.h" 28#include "solib-svr4.h" 29#include "frame.h" 30#include "trad-frame.h" 31#include "tramp-frame.h" 32#include "linux-tdep.h" 33 34/* Transliterated from <asm-mn10300/elf.h>... */ 35#define MN10300_ELF_NGREG 28 36#define MN10300_ELF_NFPREG 32 37 38typedef gdb_byte mn10300_elf_greg_t[4]; 39typedef mn10300_elf_greg_t mn10300_elf_gregset_t[MN10300_ELF_NGREG]; 40 41typedef gdb_byte mn10300_elf_fpreg_t[4]; 42typedef struct 43{ 44 mn10300_elf_fpreg_t fpregs[MN10300_ELF_NFPREG]; 45 gdb_byte fpcr[4]; 46} mn10300_elf_fpregset_t; 47 48/* elf_gregset_t register indices stolen from include/asm-mn10300/ptrace.h. */ 49#define MN10300_ELF_GREGSET_T_REG_INDEX_A3 0 50#define MN10300_ELF_GREGSET_T_REG_INDEX_A2 1 51#define MN10300_ELF_GREGSET_T_REG_INDEX_D3 2 52#define MN10300_ELF_GREGSET_T_REG_INDEX_D2 3 53#define MN10300_ELF_GREGSET_T_REG_INDEX_MCVF 4 54#define MN10300_ELF_GREGSET_T_REG_INDEX_MCRL 5 55#define MN10300_ELF_GREGSET_T_REG_INDEX_MCRH 6 56#define MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ 7 57#define MN10300_ELF_GREGSET_T_REG_INDEX_E1 8 58#define MN10300_ELF_GREGSET_T_REG_INDEX_E0 9 59#define MN10300_ELF_GREGSET_T_REG_INDEX_E7 10 60#define MN10300_ELF_GREGSET_T_REG_INDEX_E6 11 61#define MN10300_ELF_GREGSET_T_REG_INDEX_E5 12 62#define MN10300_ELF_GREGSET_T_REG_INDEX_E4 13 63#define MN10300_ELF_GREGSET_T_REG_INDEX_E3 14 64#define MN10300_ELF_GREGSET_T_REG_INDEX_E2 15 65#define MN10300_ELF_GREGSET_T_REG_INDEX_SP 16 66#define MN10300_ELF_GREGSET_T_REG_INDEX_LAR 17 67#define MN10300_ELF_GREGSET_T_REG_INDEX_LIR 18 68#define MN10300_ELF_GREGSET_T_REG_INDEX_MDR 19 69#define MN10300_ELF_GREGSET_T_REG_INDEX_A1 20 70#define MN10300_ELF_GREGSET_T_REG_INDEX_A0 21 71#define MN10300_ELF_GREGSET_T_REG_INDEX_D1 22 72#define MN10300_ELF_GREGSET_T_REG_INDEX_D0 23 73#define MN10300_ELF_GREGSET_T_REG_INDEX_ORIG_D0 24 74#define MN10300_ELF_GREGSET_T_REG_INDEX_EPSW 25 75#define MN10300_ELF_GREGSET_T_REG_INDEX_PC 26 76 77/* New gdbarch API for corefile registers. 78 Given a section name and size, create a struct reg object 79 with a supply_register and a collect_register method. */ 80 81/* Copy register value of REGNUM from regset to regcache. 82 If REGNUM is -1, do this for all gp registers in regset. */ 83 84static void 85am33_supply_gregset_method (const struct regset *regset, 86 struct regcache *regcache, 87 int regnum, const void *gregs, size_t len) 88{ 89 char zerobuf[MAX_REGISTER_SIZE]; 90 const mn10300_elf_greg_t *regp = (const mn10300_elf_greg_t *) gregs; 91 int i; 92 93 gdb_assert (len >= sizeof (mn10300_elf_gregset_t)); 94 95 switch (regnum) { 96 case E_D0_REGNUM: 97 regcache_raw_supply (regcache, E_D0_REGNUM, 98 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0)); 99 break; 100 case E_D1_REGNUM: 101 regcache_raw_supply (regcache, E_D1_REGNUM, 102 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1)); 103 break; 104 case E_D2_REGNUM: 105 regcache_raw_supply (regcache, E_D2_REGNUM, 106 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2)); 107 break; 108 case E_D3_REGNUM: 109 regcache_raw_supply (regcache, E_D3_REGNUM, 110 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3)); 111 break; 112 case E_A0_REGNUM: 113 regcache_raw_supply (regcache, E_A0_REGNUM, 114 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0)); 115 break; 116 case E_A1_REGNUM: 117 regcache_raw_supply (regcache, E_A1_REGNUM, 118 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1)); 119 break; 120 case E_A2_REGNUM: 121 regcache_raw_supply (regcache, E_A2_REGNUM, 122 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2)); 123 break; 124 case E_A3_REGNUM: 125 regcache_raw_supply (regcache, E_A3_REGNUM, 126 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3)); 127 break; 128 case E_SP_REGNUM: 129 regcache_raw_supply (regcache, E_SP_REGNUM, 130 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP)); 131 break; 132 case E_PC_REGNUM: 133 regcache_raw_supply (regcache, E_PC_REGNUM, 134 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC)); 135 break; 136 case E_MDR_REGNUM: 137 regcache_raw_supply (regcache, E_MDR_REGNUM, 138 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR)); 139 break; 140 case E_PSW_REGNUM: 141 regcache_raw_supply (regcache, E_PSW_REGNUM, 142 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW)); 143 break; 144 case E_LIR_REGNUM: 145 regcache_raw_supply (regcache, E_LIR_REGNUM, 146 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR)); 147 break; 148 case E_LAR_REGNUM: 149 regcache_raw_supply (regcache, E_LAR_REGNUM, 150 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR)); 151 break; 152 case E_MDRQ_REGNUM: 153 regcache_raw_supply (regcache, E_MDRQ_REGNUM, 154 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ)); 155 break; 156 case E_E0_REGNUM: 157 regcache_raw_supply (regcache, E_E0_REGNUM, 158 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0)); 159 break; 160 case E_E1_REGNUM: 161 regcache_raw_supply (regcache, E_E1_REGNUM, 162 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1)); 163 break; 164 case E_E2_REGNUM: 165 regcache_raw_supply (regcache, E_E2_REGNUM, 166 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2)); 167 break; 168 case E_E3_REGNUM: 169 regcache_raw_supply (regcache, E_E3_REGNUM, 170 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3)); 171 break; 172 case E_E4_REGNUM: 173 regcache_raw_supply (regcache, E_E4_REGNUM, 174 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4)); 175 break; 176 case E_E5_REGNUM: 177 regcache_raw_supply (regcache, E_E5_REGNUM, 178 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5)); 179 break; 180 case E_E6_REGNUM: 181 regcache_raw_supply (regcache, E_E6_REGNUM, 182 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6)); 183 break; 184 case E_E7_REGNUM: 185 regcache_raw_supply (regcache, E_E7_REGNUM, 186 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7)); 187 break; 188 189 /* ssp, msp, and usp are inaccessible. */ 190 case E_E8_REGNUM: 191 memset (zerobuf, 0, MAX_REGISTER_SIZE); 192 regcache_raw_supply (regcache, E_E8_REGNUM, zerobuf); 193 break; 194 case E_E9_REGNUM: 195 memset (zerobuf, 0, MAX_REGISTER_SIZE); 196 regcache_raw_supply (regcache, E_E9_REGNUM, zerobuf); 197 break; 198 case E_E10_REGNUM: 199 memset (zerobuf, 0, MAX_REGISTER_SIZE); 200 regcache_raw_supply (regcache, E_E10_REGNUM, zerobuf); 201 202 break; 203 case E_MCRH_REGNUM: 204 regcache_raw_supply (regcache, E_MCRH_REGNUM, 205 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH)); 206 break; 207 case E_MCRL_REGNUM: 208 regcache_raw_supply (regcache, E_MCRL_REGNUM, 209 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL)); 210 break; 211 case E_MCVF_REGNUM: 212 regcache_raw_supply (regcache, E_MCVF_REGNUM, 213 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF)); 214 break; 215 case E_FPCR_REGNUM: 216 /* FPCR is numbered among the GP regs, but handled as an FP reg. 217 Do nothing. */ 218 break; 219 case E_FPCR_REGNUM + 1: 220 /* The two unused registers beyond fpcr are inaccessible. */ 221 memset (zerobuf, 0, MAX_REGISTER_SIZE); 222 regcache_raw_supply (regcache, E_FPCR_REGNUM + 1, zerobuf); 223 break; 224 case E_FPCR_REGNUM + 2: 225 memset (zerobuf, 0, MAX_REGISTER_SIZE); 226 regcache_raw_supply (regcache, E_FPCR_REGNUM + 2, zerobuf); 227 break; 228 default: /* An error, obviously, but should we error out? */ 229 break; 230 case -1: 231 for (i = 0; i < MN10300_ELF_NGREG; i++) 232 am33_supply_gregset_method (regset, regcache, i, gregs, len); 233 break; 234 } 235 return; 236} 237 238/* Copy fp register value of REGNUM from regset to regcache. 239 If REGNUM is -1, do this for all fp registers in regset. */ 240 241static void 242am33_supply_fpregset_method (const struct regset *regset, 243 struct regcache *regcache, 244 int regnum, const void *fpregs, size_t len) 245{ 246 const mn10300_elf_fpregset_t *fpregset 247 = (const mn10300_elf_fpregset_t *) fpregs; 248 249 gdb_assert (len >= sizeof (mn10300_elf_fpregset_t)); 250 251 if (regnum == -1) 252 { 253 int i; 254 255 for (i = 0; i < MN10300_ELF_NFPREG; i++) 256 am33_supply_fpregset_method (regset, regcache, 257 E_FS0_REGNUM + i, fpregs, len); 258 am33_supply_fpregset_method (regset, regcache, 259 E_FPCR_REGNUM, fpregs, len); 260 } 261 else if (regnum == E_FPCR_REGNUM) 262 regcache_raw_supply (regcache, E_FPCR_REGNUM, 263 &fpregset->fpcr); 264 else if (E_FS0_REGNUM <= regnum 265 && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG) 266 regcache_raw_supply (regcache, regnum, 267 &fpregset->fpregs[regnum - E_FS0_REGNUM]); 268 269 return; 270} 271 272/* Copy register values from regcache to regset. */ 273 274static void 275am33_collect_gregset_method (const struct regset *regset, 276 const struct regcache *regcache, 277 int regnum, void *gregs, size_t len) 278{ 279 mn10300_elf_gregset_t *regp = (gdb_byte (*)[28][4]) gregs; 280 int i; 281 282 gdb_assert (len >= sizeof (mn10300_elf_gregset_t)); 283 284 switch (regnum) { 285 case E_D0_REGNUM: 286 regcache_raw_collect (regcache, E_D0_REGNUM, 287 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0)); 288 break; 289 case E_D1_REGNUM: 290 regcache_raw_collect (regcache, E_D1_REGNUM, 291 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1)); 292 break; 293 case E_D2_REGNUM: 294 regcache_raw_collect (regcache, E_D2_REGNUM, 295 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2)); 296 break; 297 case E_D3_REGNUM: 298 regcache_raw_collect (regcache, E_D3_REGNUM, 299 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3)); 300 break; 301 case E_A0_REGNUM: 302 regcache_raw_collect (regcache, E_A0_REGNUM, 303 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0)); 304 break; 305 case E_A1_REGNUM: 306 regcache_raw_collect (regcache, E_A1_REGNUM, 307 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1)); 308 break; 309 case E_A2_REGNUM: 310 regcache_raw_collect (regcache, E_A2_REGNUM, 311 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2)); 312 break; 313 case E_A3_REGNUM: 314 regcache_raw_collect (regcache, E_A3_REGNUM, 315 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3)); 316 break; 317 case E_SP_REGNUM: 318 regcache_raw_collect (regcache, E_SP_REGNUM, 319 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP)); 320 break; 321 case E_PC_REGNUM: 322 regcache_raw_collect (regcache, E_PC_REGNUM, 323 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC)); 324 break; 325 case E_MDR_REGNUM: 326 regcache_raw_collect (regcache, E_MDR_REGNUM, 327 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR)); 328 break; 329 case E_PSW_REGNUM: 330 regcache_raw_collect (regcache, E_PSW_REGNUM, 331 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW)); 332 break; 333 case E_LIR_REGNUM: 334 regcache_raw_collect (regcache, E_LIR_REGNUM, 335 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR)); 336 break; 337 case E_LAR_REGNUM: 338 regcache_raw_collect (regcache, E_LAR_REGNUM, 339 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR)); 340 break; 341 case E_MDRQ_REGNUM: 342 regcache_raw_collect (regcache, E_MDRQ_REGNUM, 343 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ)); 344 break; 345 case E_E0_REGNUM: 346 regcache_raw_collect (regcache, E_E0_REGNUM, 347 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0)); 348 break; 349 case E_E1_REGNUM: 350 regcache_raw_collect (regcache, E_E1_REGNUM, 351 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1)); 352 break; 353 case E_E2_REGNUM: 354 regcache_raw_collect (regcache, E_E2_REGNUM, 355 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2)); 356 break; 357 case E_E3_REGNUM: 358 regcache_raw_collect (regcache, E_E3_REGNUM, 359 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3)); 360 break; 361 case E_E4_REGNUM: 362 regcache_raw_collect (regcache, E_E4_REGNUM, 363 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4)); 364 break; 365 case E_E5_REGNUM: 366 regcache_raw_collect (regcache, E_E5_REGNUM, 367 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5)); 368 break; 369 case E_E6_REGNUM: 370 regcache_raw_collect (regcache, E_E6_REGNUM, 371 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6)); 372 break; 373 case E_E7_REGNUM: 374 regcache_raw_collect (regcache, E_E7_REGNUM, 375 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7)); 376 break; 377 378 /* ssp, msp, and usp are inaccessible. */ 379 case E_E8_REGNUM: 380 /* The gregset struct has noplace to put this: do nothing. */ 381 break; 382 case E_E9_REGNUM: 383 /* The gregset struct has noplace to put this: do nothing. */ 384 break; 385 case E_E10_REGNUM: 386 /* The gregset struct has noplace to put this: do nothing. */ 387 break; 388 case E_MCRH_REGNUM: 389 regcache_raw_collect (regcache, E_MCRH_REGNUM, 390 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH)); 391 break; 392 case E_MCRL_REGNUM: 393 regcache_raw_collect (regcache, E_MCRL_REGNUM, 394 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL)); 395 break; 396 case E_MCVF_REGNUM: 397 regcache_raw_collect (regcache, E_MCVF_REGNUM, 398 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF)); 399 break; 400 case E_FPCR_REGNUM: 401 /* FPCR is numbered among the GP regs, but handled as an FP reg. 402 Do nothing. */ 403 break; 404 case E_FPCR_REGNUM + 1: 405 /* The gregset struct has noplace to put this: do nothing. */ 406 break; 407 case E_FPCR_REGNUM + 2: 408 /* The gregset struct has noplace to put this: do nothing. */ 409 break; 410 default: /* An error, obviously, but should we error out? */ 411 break; 412 case -1: 413 for (i = 0; i < MN10300_ELF_NGREG; i++) 414 am33_collect_gregset_method (regset, regcache, i, gregs, len); 415 break; 416 } 417 return; 418} 419 420/* Copy fp register values from regcache to regset. */ 421 422static void 423am33_collect_fpregset_method (const struct regset *regset, 424 const struct regcache *regcache, 425 int regnum, void *fpregs, size_t len) 426{ 427 mn10300_elf_fpregset_t *fpregset = (mn10300_elf_fpregset_t *) fpregs; 428 429 gdb_assert (len >= sizeof (mn10300_elf_fpregset_t)); 430 431 if (regnum == -1) 432 { 433 int i; 434 for (i = 0; i < MN10300_ELF_NFPREG; i++) 435 am33_collect_fpregset_method (regset, regcache, E_FS0_REGNUM + i, 436 fpregs, len); 437 am33_collect_fpregset_method (regset, regcache, 438 E_FPCR_REGNUM, fpregs, len); 439 } 440 else if (regnum == E_FPCR_REGNUM) 441 regcache_raw_collect (regcache, E_FPCR_REGNUM, 442 &fpregset->fpcr); 443 else if (E_FS0_REGNUM <= regnum 444 && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG) 445 regcache_raw_collect (regcache, regnum, 446 &fpregset->fpregs[regnum - E_FS0_REGNUM]); 447 448 return; 449} 450 451static const struct regset am33_gregset = 452 { 453 NULL, am33_supply_gregset_method, am33_collect_gregset_method 454 }; 455 456static const struct regset am33_fpregset = 457 { 458 NULL, am33_supply_fpregset_method, am33_collect_fpregset_method 459 }; 460 461/* Iterate over core file register note sections. */ 462 463static void 464am33_iterate_over_regset_sections (struct gdbarch *gdbarch, 465 iterate_over_regset_sections_cb *cb, 466 void *cb_data, 467 const struct regcache *regcache) 468{ 469 cb (".reg", sizeof (mn10300_elf_gregset_t), &am33_gregset, 470 NULL, cb_data); 471 cb (".reg2", sizeof(mn10300_elf_fpregset_t), &am33_fpregset, 472 NULL, cb_data); 473} 474 475static void 476am33_linux_sigframe_cache_init (const struct tramp_frame *self, 477 struct frame_info *this_frame, 478 struct trad_frame_cache *this_cache, 479 CORE_ADDR func); 480 481static const struct tramp_frame am33_linux_sigframe = { 482 SIGTRAMP_FRAME, 483 1, 484 { 485 /* mov 119,d0 */ 486 { 0x2c, -1 }, 487 { 0x77, -1 }, 488 { 0x00, -1 }, 489 /* syscall 0 */ 490 { 0xf0, -1 }, 491 { 0xe0, -1 }, 492 { TRAMP_SENTINEL_INSN, -1 } 493 }, 494 am33_linux_sigframe_cache_init 495}; 496 497static const struct tramp_frame am33_linux_rt_sigframe = { 498 SIGTRAMP_FRAME, 499 1, 500 { 501 /* mov 173,d0 */ 502 { 0x2c, -1 }, 503 { 0xad, -1 }, 504 { 0x00, -1 }, 505 /* syscall 0 */ 506 { 0xf0, -1 }, 507 { 0xe0, -1 }, 508 { TRAMP_SENTINEL_INSN, -1 } 509 }, 510 am33_linux_sigframe_cache_init 511}; 512 513/* Relevant struct definitions for signal handling... 514 515From arch/mn10300/kernel/sigframe.h: 516 517struct sigframe 518{ 519 void (*pretcode)(void); 520 int sig; 521 struct sigcontext *psc; 522 struct sigcontext sc; 523 struct fpucontext fpuctx; 524 unsigned long extramask[_NSIG_WORDS-1]; 525 char retcode[8]; 526}; 527 528struct rt_sigframe 529{ 530 void (*pretcode)(void); 531 int sig; 532 struct siginfo *pinfo; 533 void *puc; 534 struct siginfo info; 535 struct ucontext uc; 536 struct fpucontext fpuctx; 537 char retcode[8]; 538}; 539 540From include/asm-mn10300/ucontext.h: 541 542struct ucontext { 543 unsigned long uc_flags; 544 struct ucontext *uc_link; 545 stack_t uc_stack; 546 struct sigcontext uc_mcontext; 547 sigset_t uc_sigmask; 548}; 549 550From include/asm-mn10300/sigcontext.h: 551 552struct fpucontext { 553 unsigned long fs[32]; 554 unsigned long fpcr; 555}; 556 557struct sigcontext { 558 unsigned long d0; 559 unsigned long d1; 560 unsigned long d2; 561 unsigned long d3; 562 unsigned long a0; 563 unsigned long a1; 564 unsigned long a2; 565 unsigned long a3; 566 unsigned long e0; 567 unsigned long e1; 568 unsigned long e2; 569 unsigned long e3; 570 unsigned long e4; 571 unsigned long e5; 572 unsigned long e6; 573 unsigned long e7; 574 unsigned long lar; 575 unsigned long lir; 576 unsigned long mdr; 577 unsigned long mcvf; 578 unsigned long mcrl; 579 unsigned long mcrh; 580 unsigned long mdrq; 581 unsigned long sp; 582 unsigned long epsw; 583 unsigned long pc; 584 struct fpucontext *fpucontext; 585 unsigned long oldmask; 586}; */ 587 588 589#define AM33_SIGCONTEXT_D0 0 590#define AM33_SIGCONTEXT_D1 4 591#define AM33_SIGCONTEXT_D2 8 592#define AM33_SIGCONTEXT_D3 12 593#define AM33_SIGCONTEXT_A0 16 594#define AM33_SIGCONTEXT_A1 20 595#define AM33_SIGCONTEXT_A2 24 596#define AM33_SIGCONTEXT_A3 28 597#define AM33_SIGCONTEXT_E0 32 598#define AM33_SIGCONTEXT_E1 36 599#define AM33_SIGCONTEXT_E2 40 600#define AM33_SIGCONTEXT_E3 44 601#define AM33_SIGCONTEXT_E4 48 602#define AM33_SIGCONTEXT_E5 52 603#define AM33_SIGCONTEXT_E6 56 604#define AM33_SIGCONTEXT_E7 60 605#define AM33_SIGCONTEXT_LAR 64 606#define AM33_SIGCONTEXT_LIR 68 607#define AM33_SIGCONTEXT_MDR 72 608#define AM33_SIGCONTEXT_MCVF 76 609#define AM33_SIGCONTEXT_MCRL 80 610#define AM33_SIGCONTEXT_MCRH 84 611#define AM33_SIGCONTEXT_MDRQ 88 612#define AM33_SIGCONTEXT_SP 92 613#define AM33_SIGCONTEXT_EPSW 96 614#define AM33_SIGCONTEXT_PC 100 615#define AM33_SIGCONTEXT_FPUCONTEXT 104 616 617 618static void 619am33_linux_sigframe_cache_init (const struct tramp_frame *self, 620 struct frame_info *this_frame, 621 struct trad_frame_cache *this_cache, 622 CORE_ADDR func) 623{ 624 CORE_ADDR sc_base, fpubase; 625 int i; 626 627 sc_base = get_frame_register_unsigned (this_frame, E_SP_REGNUM); 628 if (self == &am33_linux_sigframe) 629 { 630 sc_base += 8; 631 sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4); 632 } 633 else 634 { 635 sc_base += 12; 636 sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4); 637 sc_base += 20; 638 } 639 640 trad_frame_set_reg_addr (this_cache, E_D0_REGNUM, 641 sc_base + AM33_SIGCONTEXT_D0); 642 trad_frame_set_reg_addr (this_cache, E_D1_REGNUM, 643 sc_base + AM33_SIGCONTEXT_D1); 644 trad_frame_set_reg_addr (this_cache, E_D2_REGNUM, 645 sc_base + AM33_SIGCONTEXT_D2); 646 trad_frame_set_reg_addr (this_cache, E_D3_REGNUM, 647 sc_base + AM33_SIGCONTEXT_D3); 648 649 trad_frame_set_reg_addr (this_cache, E_A0_REGNUM, 650 sc_base + AM33_SIGCONTEXT_A0); 651 trad_frame_set_reg_addr (this_cache, E_A1_REGNUM, 652 sc_base + AM33_SIGCONTEXT_A1); 653 trad_frame_set_reg_addr (this_cache, E_A2_REGNUM, 654 sc_base + AM33_SIGCONTEXT_A2); 655 trad_frame_set_reg_addr (this_cache, E_A3_REGNUM, 656 sc_base + AM33_SIGCONTEXT_A3); 657 658 trad_frame_set_reg_addr (this_cache, E_E0_REGNUM, 659 sc_base + AM33_SIGCONTEXT_E0); 660 trad_frame_set_reg_addr (this_cache, E_E1_REGNUM, 661 sc_base + AM33_SIGCONTEXT_E1); 662 trad_frame_set_reg_addr (this_cache, E_E2_REGNUM, 663 sc_base + AM33_SIGCONTEXT_E2); 664 trad_frame_set_reg_addr (this_cache, E_E3_REGNUM, 665 sc_base + AM33_SIGCONTEXT_E3); 666 trad_frame_set_reg_addr (this_cache, E_E4_REGNUM, 667 sc_base + AM33_SIGCONTEXT_E4); 668 trad_frame_set_reg_addr (this_cache, E_E5_REGNUM, 669 sc_base + AM33_SIGCONTEXT_E5); 670 trad_frame_set_reg_addr (this_cache, E_E6_REGNUM, 671 sc_base + AM33_SIGCONTEXT_E6); 672 trad_frame_set_reg_addr (this_cache, E_E7_REGNUM, 673 sc_base + AM33_SIGCONTEXT_E7); 674 675 trad_frame_set_reg_addr (this_cache, E_LAR_REGNUM, 676 sc_base + AM33_SIGCONTEXT_LAR); 677 trad_frame_set_reg_addr (this_cache, E_LIR_REGNUM, 678 sc_base + AM33_SIGCONTEXT_LIR); 679 trad_frame_set_reg_addr (this_cache, E_MDR_REGNUM, 680 sc_base + AM33_SIGCONTEXT_MDR); 681 trad_frame_set_reg_addr (this_cache, E_MCVF_REGNUM, 682 sc_base + AM33_SIGCONTEXT_MCVF); 683 trad_frame_set_reg_addr (this_cache, E_MCRL_REGNUM, 684 sc_base + AM33_SIGCONTEXT_MCRL); 685 trad_frame_set_reg_addr (this_cache, E_MDRQ_REGNUM, 686 sc_base + AM33_SIGCONTEXT_MDRQ); 687 688 trad_frame_set_reg_addr (this_cache, E_SP_REGNUM, 689 sc_base + AM33_SIGCONTEXT_SP); 690 trad_frame_set_reg_addr (this_cache, E_PSW_REGNUM, 691 sc_base + AM33_SIGCONTEXT_EPSW); 692 trad_frame_set_reg_addr (this_cache, E_PC_REGNUM, 693 sc_base + AM33_SIGCONTEXT_PC); 694 695 fpubase = get_frame_memory_unsigned (this_frame, 696 sc_base + AM33_SIGCONTEXT_FPUCONTEXT, 697 4); 698 if (fpubase) 699 { 700 for (i = 0; i < 32; i++) 701 { 702 trad_frame_set_reg_addr (this_cache, E_FS0_REGNUM + i, 703 fpubase + 4 * i); 704 } 705 trad_frame_set_reg_addr (this_cache, E_FPCR_REGNUM, fpubase + 4 * 32); 706 } 707 708 trad_frame_set_id (this_cache, frame_id_build (sc_base, func)); 709} 710 711/* AM33 GNU/Linux osabi has been recognized. 712 Now's our chance to register our corefile handling. */ 713 714static void 715am33_linux_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch) 716{ 717 linux_init_abi (info, gdbarch); 718 719 set_gdbarch_iterate_over_regset_sections 720 (gdbarch, am33_iterate_over_regset_sections); 721 set_solib_svr4_fetch_link_map_offsets 722 (gdbarch, svr4_ilp32_fetch_link_map_offsets); 723 724 tramp_frame_prepend_unwinder (gdbarch, &am33_linux_sigframe); 725 tramp_frame_prepend_unwinder (gdbarch, &am33_linux_rt_sigframe); 726} 727 728/* Provide a prototype to silence -Wmissing-prototypes. */ 729extern initialize_file_ftype _initialize_mn10300_linux_tdep; 730 731void 732_initialize_mn10300_linux_tdep (void) 733{ 734 gdbarch_register_osabi (bfd_arch_mn10300, 0, 735 GDB_OSABI_LINUX, am33_linux_init_osabi); 736} 737 738