mn10300-linux-tdep.c revision 1.9
1/* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger. 2 3 Copyright (C) 2003-2020 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#include "gdbarch.h" 34 35/* Transliterated from <asm-mn10300/elf.h>... */ 36#define MN10300_ELF_NGREG 28 37#define MN10300_ELF_NFPREG 32 38 39typedef gdb_byte mn10300_elf_greg_t[4]; 40typedef mn10300_elf_greg_t mn10300_elf_gregset_t[MN10300_ELF_NGREG]; 41 42typedef gdb_byte mn10300_elf_fpreg_t[4]; 43typedef struct 44{ 45 mn10300_elf_fpreg_t fpregs[MN10300_ELF_NFPREG]; 46 gdb_byte fpcr[4]; 47} mn10300_elf_fpregset_t; 48 49/* elf_gregset_t register indices stolen from include/asm-mn10300/ptrace.h. */ 50#define MN10300_ELF_GREGSET_T_REG_INDEX_A3 0 51#define MN10300_ELF_GREGSET_T_REG_INDEX_A2 1 52#define MN10300_ELF_GREGSET_T_REG_INDEX_D3 2 53#define MN10300_ELF_GREGSET_T_REG_INDEX_D2 3 54#define MN10300_ELF_GREGSET_T_REG_INDEX_MCVF 4 55#define MN10300_ELF_GREGSET_T_REG_INDEX_MCRL 5 56#define MN10300_ELF_GREGSET_T_REG_INDEX_MCRH 6 57#define MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ 7 58#define MN10300_ELF_GREGSET_T_REG_INDEX_E1 8 59#define MN10300_ELF_GREGSET_T_REG_INDEX_E0 9 60#define MN10300_ELF_GREGSET_T_REG_INDEX_E7 10 61#define MN10300_ELF_GREGSET_T_REG_INDEX_E6 11 62#define MN10300_ELF_GREGSET_T_REG_INDEX_E5 12 63#define MN10300_ELF_GREGSET_T_REG_INDEX_E4 13 64#define MN10300_ELF_GREGSET_T_REG_INDEX_E3 14 65#define MN10300_ELF_GREGSET_T_REG_INDEX_E2 15 66#define MN10300_ELF_GREGSET_T_REG_INDEX_SP 16 67#define MN10300_ELF_GREGSET_T_REG_INDEX_LAR 17 68#define MN10300_ELF_GREGSET_T_REG_INDEX_LIR 18 69#define MN10300_ELF_GREGSET_T_REG_INDEX_MDR 19 70#define MN10300_ELF_GREGSET_T_REG_INDEX_A1 20 71#define MN10300_ELF_GREGSET_T_REG_INDEX_A0 21 72#define MN10300_ELF_GREGSET_T_REG_INDEX_D1 22 73#define MN10300_ELF_GREGSET_T_REG_INDEX_D0 23 74#define MN10300_ELF_GREGSET_T_REG_INDEX_ORIG_D0 24 75#define MN10300_ELF_GREGSET_T_REG_INDEX_EPSW 25 76#define MN10300_ELF_GREGSET_T_REG_INDEX_PC 26 77 78/* New gdbarch API for corefile registers. 79 Given a section name and size, create a struct reg object 80 with a supply_register and a collect_register method. */ 81 82/* Copy register value of REGNUM from regset to regcache. 83 If REGNUM is -1, do this for all gp registers in regset. */ 84 85static void 86am33_supply_gregset_method (const struct regset *regset, 87 struct regcache *regcache, 88 int regnum, const void *gregs, size_t len) 89{ 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 (E_D0_REGNUM, 98 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0)); 99 break; 100 case E_D1_REGNUM: 101 regcache->raw_supply (E_D1_REGNUM, 102 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1)); 103 break; 104 case E_D2_REGNUM: 105 regcache->raw_supply (E_D2_REGNUM, 106 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2)); 107 break; 108 case E_D3_REGNUM: 109 regcache->raw_supply (E_D3_REGNUM, 110 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3)); 111 break; 112 case E_A0_REGNUM: 113 regcache->raw_supply (E_A0_REGNUM, 114 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0)); 115 break; 116 case E_A1_REGNUM: 117 regcache->raw_supply (E_A1_REGNUM, 118 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1)); 119 break; 120 case E_A2_REGNUM: 121 regcache->raw_supply (E_A2_REGNUM, 122 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2)); 123 break; 124 case E_A3_REGNUM: 125 regcache->raw_supply (E_A3_REGNUM, 126 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3)); 127 break; 128 case E_SP_REGNUM: 129 regcache->raw_supply (E_SP_REGNUM, 130 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP)); 131 break; 132 case E_PC_REGNUM: 133 regcache->raw_supply (E_PC_REGNUM, 134 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC)); 135 break; 136 case E_MDR_REGNUM: 137 regcache->raw_supply (E_MDR_REGNUM, 138 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR)); 139 break; 140 case E_PSW_REGNUM: 141 regcache->raw_supply (E_PSW_REGNUM, 142 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW)); 143 break; 144 case E_LIR_REGNUM: 145 regcache->raw_supply (E_LIR_REGNUM, 146 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR)); 147 break; 148 case E_LAR_REGNUM: 149 regcache->raw_supply (E_LAR_REGNUM, 150 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR)); 151 break; 152 case E_MDRQ_REGNUM: 153 regcache->raw_supply (E_MDRQ_REGNUM, 154 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ)); 155 break; 156 case E_E0_REGNUM: 157 regcache->raw_supply (E_E0_REGNUM, 158 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0)); 159 break; 160 case E_E1_REGNUM: 161 regcache->raw_supply (E_E1_REGNUM, 162 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1)); 163 break; 164 case E_E2_REGNUM: 165 regcache->raw_supply (E_E2_REGNUM, 166 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2)); 167 break; 168 case E_E3_REGNUM: 169 regcache->raw_supply (E_E3_REGNUM, 170 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3)); 171 break; 172 case E_E4_REGNUM: 173 regcache->raw_supply (E_E4_REGNUM, 174 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4)); 175 break; 176 case E_E5_REGNUM: 177 regcache->raw_supply (E_E5_REGNUM, 178 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5)); 179 break; 180 case E_E6_REGNUM: 181 regcache->raw_supply (E_E6_REGNUM, 182 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6)); 183 break; 184 case E_E7_REGNUM: 185 regcache->raw_supply (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 regcache->raw_supply_zeroed (E_E8_REGNUM); 192 break; 193 case E_E9_REGNUM: 194 regcache->raw_supply_zeroed (E_E9_REGNUM); 195 break; 196 case E_E10_REGNUM: 197 regcache->raw_supply_zeroed (E_E10_REGNUM); 198 break; 199 case E_MCRH_REGNUM: 200 regcache->raw_supply (E_MCRH_REGNUM, 201 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH)); 202 break; 203 case E_MCRL_REGNUM: 204 regcache->raw_supply (E_MCRL_REGNUM, 205 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL)); 206 break; 207 case E_MCVF_REGNUM: 208 regcache->raw_supply (E_MCVF_REGNUM, 209 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF)); 210 break; 211 case E_FPCR_REGNUM: 212 /* FPCR is numbered among the GP regs, but handled as an FP reg. 213 Do nothing. */ 214 break; 215 case E_FPCR_REGNUM + 1: 216 /* The two unused registers beyond fpcr are inaccessible. */ 217 regcache->raw_supply_zeroed (E_FPCR_REGNUM + 1); 218 break; 219 case E_FPCR_REGNUM + 2: 220 regcache->raw_supply_zeroed (E_FPCR_REGNUM + 2); 221 break; 222 default: /* An error, obviously, but should we error out? */ 223 break; 224 case -1: 225 for (i = 0; i < MN10300_ELF_NGREG; i++) 226 am33_supply_gregset_method (regset, regcache, i, gregs, len); 227 break; 228 } 229 return; 230} 231 232/* Copy fp register value of REGNUM from regset to regcache. 233 If REGNUM is -1, do this for all fp registers in regset. */ 234 235static void 236am33_supply_fpregset_method (const struct regset *regset, 237 struct regcache *regcache, 238 int regnum, const void *fpregs, size_t len) 239{ 240 const mn10300_elf_fpregset_t *fpregset 241 = (const mn10300_elf_fpregset_t *) fpregs; 242 243 gdb_assert (len >= sizeof (mn10300_elf_fpregset_t)); 244 245 if (regnum == -1) 246 { 247 int i; 248 249 for (i = 0; i < MN10300_ELF_NFPREG; i++) 250 am33_supply_fpregset_method (regset, regcache, 251 E_FS0_REGNUM + i, fpregs, len); 252 am33_supply_fpregset_method (regset, regcache, 253 E_FPCR_REGNUM, fpregs, len); 254 } 255 else if (regnum == E_FPCR_REGNUM) 256 regcache->raw_supply (E_FPCR_REGNUM, &fpregset->fpcr); 257 else if (E_FS0_REGNUM <= regnum 258 && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG) 259 regcache->raw_supply (regnum, &fpregset->fpregs[regnum - E_FS0_REGNUM]); 260 261 return; 262} 263 264/* Copy register values from regcache to regset. */ 265 266static void 267am33_collect_gregset_method (const struct regset *regset, 268 const struct regcache *regcache, 269 int regnum, void *gregs, size_t len) 270{ 271 mn10300_elf_gregset_t *regp = (gdb_byte (*)[28][4]) gregs; 272 int i; 273 274 gdb_assert (len >= sizeof (mn10300_elf_gregset_t)); 275 276 switch (regnum) { 277 case E_D0_REGNUM: 278 regcache->raw_collect (E_D0_REGNUM, 279 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D0)); 280 break; 281 case E_D1_REGNUM: 282 regcache->raw_collect (E_D1_REGNUM, 283 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D1)); 284 break; 285 case E_D2_REGNUM: 286 regcache->raw_collect (E_D2_REGNUM, 287 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D2)); 288 break; 289 case E_D3_REGNUM: 290 regcache->raw_collect (E_D3_REGNUM, 291 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_D3)); 292 break; 293 case E_A0_REGNUM: 294 regcache->raw_collect (E_A0_REGNUM, 295 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A0)); 296 break; 297 case E_A1_REGNUM: 298 regcache->raw_collect (E_A1_REGNUM, 299 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A1)); 300 break; 301 case E_A2_REGNUM: 302 regcache->raw_collect (E_A2_REGNUM, 303 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A2)); 304 break; 305 case E_A3_REGNUM: 306 regcache->raw_collect (E_A3_REGNUM, 307 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_A3)); 308 break; 309 case E_SP_REGNUM: 310 regcache->raw_collect (E_SP_REGNUM, 311 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_SP)); 312 break; 313 case E_PC_REGNUM: 314 regcache->raw_collect (E_PC_REGNUM, 315 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_PC)); 316 break; 317 case E_MDR_REGNUM: 318 regcache->raw_collect (E_MDR_REGNUM, 319 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDR)); 320 break; 321 case E_PSW_REGNUM: 322 regcache->raw_collect (E_PSW_REGNUM, 323 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_EPSW)); 324 break; 325 case E_LIR_REGNUM: 326 regcache->raw_collect (E_LIR_REGNUM, 327 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LIR)); 328 break; 329 case E_LAR_REGNUM: 330 regcache->raw_collect (E_LAR_REGNUM, 331 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_LAR)); 332 break; 333 case E_MDRQ_REGNUM: 334 regcache->raw_collect (E_MDRQ_REGNUM, 335 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MDRQ)); 336 break; 337 case E_E0_REGNUM: 338 regcache->raw_collect (E_E0_REGNUM, 339 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E0)); 340 break; 341 case E_E1_REGNUM: 342 regcache->raw_collect (E_E1_REGNUM, 343 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E1)); 344 break; 345 case E_E2_REGNUM: 346 regcache->raw_collect (E_E2_REGNUM, 347 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E2)); 348 break; 349 case E_E3_REGNUM: 350 regcache->raw_collect (E_E3_REGNUM, 351 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E3)); 352 break; 353 case E_E4_REGNUM: 354 regcache->raw_collect (E_E4_REGNUM, 355 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E4)); 356 break; 357 case E_E5_REGNUM: 358 regcache->raw_collect (E_E5_REGNUM, 359 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E5)); 360 break; 361 case E_E6_REGNUM: 362 regcache->raw_collect (E_E6_REGNUM, 363 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E6)); 364 break; 365 case E_E7_REGNUM: 366 regcache->raw_collect (E_E7_REGNUM, 367 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_E7)); 368 break; 369 370 /* ssp, msp, and usp are inaccessible. */ 371 case E_E8_REGNUM: 372 /* The gregset struct has noplace to put this: do nothing. */ 373 break; 374 case E_E9_REGNUM: 375 /* The gregset struct has noplace to put this: do nothing. */ 376 break; 377 case E_E10_REGNUM: 378 /* The gregset struct has noplace to put this: do nothing. */ 379 break; 380 case E_MCRH_REGNUM: 381 regcache->raw_collect (E_MCRH_REGNUM, 382 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRH)); 383 break; 384 case E_MCRL_REGNUM: 385 regcache->raw_collect (E_MCRL_REGNUM, 386 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCRL)); 387 break; 388 case E_MCVF_REGNUM: 389 regcache->raw_collect (E_MCVF_REGNUM, 390 (regp + MN10300_ELF_GREGSET_T_REG_INDEX_MCVF)); 391 break; 392 case E_FPCR_REGNUM: 393 /* FPCR is numbered among the GP regs, but handled as an FP reg. 394 Do nothing. */ 395 break; 396 case E_FPCR_REGNUM + 1: 397 /* The gregset struct has noplace to put this: do nothing. */ 398 break; 399 case E_FPCR_REGNUM + 2: 400 /* The gregset struct has noplace to put this: do nothing. */ 401 break; 402 default: /* An error, obviously, but should we error out? */ 403 break; 404 case -1: 405 for (i = 0; i < MN10300_ELF_NGREG; i++) 406 am33_collect_gregset_method (regset, regcache, i, gregs, len); 407 break; 408 } 409 return; 410} 411 412/* Copy fp register values from regcache to regset. */ 413 414static void 415am33_collect_fpregset_method (const struct regset *regset, 416 const struct regcache *regcache, 417 int regnum, void *fpregs, size_t len) 418{ 419 mn10300_elf_fpregset_t *fpregset = (mn10300_elf_fpregset_t *) fpregs; 420 421 gdb_assert (len >= sizeof (mn10300_elf_fpregset_t)); 422 423 if (regnum == -1) 424 { 425 int i; 426 for (i = 0; i < MN10300_ELF_NFPREG; i++) 427 am33_collect_fpregset_method (regset, regcache, E_FS0_REGNUM + i, 428 fpregs, len); 429 am33_collect_fpregset_method (regset, regcache, 430 E_FPCR_REGNUM, fpregs, len); 431 } 432 else if (regnum == E_FPCR_REGNUM) 433 regcache->raw_collect (E_FPCR_REGNUM, &fpregset->fpcr); 434 else if (E_FS0_REGNUM <= regnum 435 && regnum < E_FS0_REGNUM + MN10300_ELF_NFPREG) 436 regcache->raw_collect (regnum, &fpregset->fpregs[regnum - E_FS0_REGNUM]); 437 438 return; 439} 440 441static const struct regset am33_gregset = 442 { 443 NULL, am33_supply_gregset_method, am33_collect_gregset_method 444 }; 445 446static const struct regset am33_fpregset = 447 { 448 NULL, am33_supply_fpregset_method, am33_collect_fpregset_method 449 }; 450 451/* Iterate over core file register note sections. */ 452 453static void 454am33_iterate_over_regset_sections (struct gdbarch *gdbarch, 455 iterate_over_regset_sections_cb *cb, 456 void *cb_data, 457 const struct regcache *regcache) 458{ 459 cb (".reg", sizeof (mn10300_elf_gregset_t), sizeof (mn10300_elf_gregset_t), 460 &am33_gregset, NULL, cb_data); 461 cb (".reg2", sizeof (mn10300_elf_fpregset_t), sizeof (mn10300_elf_fpregset_t), 462 &am33_fpregset, NULL, cb_data); 463} 464 465static void 466am33_linux_sigframe_cache_init (const struct tramp_frame *self, 467 struct frame_info *this_frame, 468 struct trad_frame_cache *this_cache, 469 CORE_ADDR func); 470 471static const struct tramp_frame am33_linux_sigframe = { 472 SIGTRAMP_FRAME, 473 1, 474 { 475 /* mov 119,d0 */ 476 { 0x2c, ULONGEST_MAX }, 477 { 0x77, ULONGEST_MAX }, 478 { 0x00, ULONGEST_MAX }, 479 /* syscall 0 */ 480 { 0xf0, ULONGEST_MAX }, 481 { 0xe0, ULONGEST_MAX }, 482 { TRAMP_SENTINEL_INSN, ULONGEST_MAX } 483 }, 484 am33_linux_sigframe_cache_init 485}; 486 487static const struct tramp_frame am33_linux_rt_sigframe = { 488 SIGTRAMP_FRAME, 489 1, 490 { 491 /* mov 173,d0 */ 492 { 0x2c, ULONGEST_MAX }, 493 { 0xad, ULONGEST_MAX }, 494 { 0x00, ULONGEST_MAX }, 495 /* syscall 0 */ 496 { 0xf0, ULONGEST_MAX }, 497 { 0xe0, ULONGEST_MAX }, 498 { TRAMP_SENTINEL_INSN, ULONGEST_MAX } 499 }, 500 am33_linux_sigframe_cache_init 501}; 502 503/* Relevant struct definitions for signal handling... 504 505From arch/mn10300/kernel/sigframe.h: 506 507struct sigframe 508{ 509 void (*pretcode)(void); 510 int sig; 511 struct sigcontext *psc; 512 struct sigcontext sc; 513 struct fpucontext fpuctx; 514 unsigned long extramask[_NSIG_WORDS-1]; 515 char retcode[8]; 516}; 517 518struct rt_sigframe 519{ 520 void (*pretcode)(void); 521 int sig; 522 struct siginfo *pinfo; 523 void *puc; 524 struct siginfo info; 525 struct ucontext uc; 526 struct fpucontext fpuctx; 527 char retcode[8]; 528}; 529 530From include/asm-mn10300/ucontext.h: 531 532struct ucontext { 533 unsigned long uc_flags; 534 struct ucontext *uc_link; 535 stack_t uc_stack; 536 struct sigcontext uc_mcontext; 537 sigset_t uc_sigmask; 538}; 539 540From include/asm-mn10300/sigcontext.h: 541 542struct fpucontext { 543 unsigned long fs[32]; 544 unsigned long fpcr; 545}; 546 547struct sigcontext { 548 unsigned long d0; 549 unsigned long d1; 550 unsigned long d2; 551 unsigned long d3; 552 unsigned long a0; 553 unsigned long a1; 554 unsigned long a2; 555 unsigned long a3; 556 unsigned long e0; 557 unsigned long e1; 558 unsigned long e2; 559 unsigned long e3; 560 unsigned long e4; 561 unsigned long e5; 562 unsigned long e6; 563 unsigned long e7; 564 unsigned long lar; 565 unsigned long lir; 566 unsigned long mdr; 567 unsigned long mcvf; 568 unsigned long mcrl; 569 unsigned long mcrh; 570 unsigned long mdrq; 571 unsigned long sp; 572 unsigned long epsw; 573 unsigned long pc; 574 struct fpucontext *fpucontext; 575 unsigned long oldmask; 576}; */ 577 578 579#define AM33_SIGCONTEXT_D0 0 580#define AM33_SIGCONTEXT_D1 4 581#define AM33_SIGCONTEXT_D2 8 582#define AM33_SIGCONTEXT_D3 12 583#define AM33_SIGCONTEXT_A0 16 584#define AM33_SIGCONTEXT_A1 20 585#define AM33_SIGCONTEXT_A2 24 586#define AM33_SIGCONTEXT_A3 28 587#define AM33_SIGCONTEXT_E0 32 588#define AM33_SIGCONTEXT_E1 36 589#define AM33_SIGCONTEXT_E2 40 590#define AM33_SIGCONTEXT_E3 44 591#define AM33_SIGCONTEXT_E4 48 592#define AM33_SIGCONTEXT_E5 52 593#define AM33_SIGCONTEXT_E6 56 594#define AM33_SIGCONTEXT_E7 60 595#define AM33_SIGCONTEXT_LAR 64 596#define AM33_SIGCONTEXT_LIR 68 597#define AM33_SIGCONTEXT_MDR 72 598#define AM33_SIGCONTEXT_MCVF 76 599#define AM33_SIGCONTEXT_MCRL 80 600#define AM33_SIGCONTEXT_MCRH 84 601#define AM33_SIGCONTEXT_MDRQ 88 602#define AM33_SIGCONTEXT_SP 92 603#define AM33_SIGCONTEXT_EPSW 96 604#define AM33_SIGCONTEXT_PC 100 605#define AM33_SIGCONTEXT_FPUCONTEXT 104 606 607 608static void 609am33_linux_sigframe_cache_init (const struct tramp_frame *self, 610 struct frame_info *this_frame, 611 struct trad_frame_cache *this_cache, 612 CORE_ADDR func) 613{ 614 CORE_ADDR sc_base, fpubase; 615 int i; 616 617 sc_base = get_frame_register_unsigned (this_frame, E_SP_REGNUM); 618 if (self == &am33_linux_sigframe) 619 { 620 sc_base += 8; 621 sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4); 622 } 623 else 624 { 625 sc_base += 12; 626 sc_base = get_frame_memory_unsigned (this_frame, sc_base, 4); 627 sc_base += 20; 628 } 629 630 trad_frame_set_reg_addr (this_cache, E_D0_REGNUM, 631 sc_base + AM33_SIGCONTEXT_D0); 632 trad_frame_set_reg_addr (this_cache, E_D1_REGNUM, 633 sc_base + AM33_SIGCONTEXT_D1); 634 trad_frame_set_reg_addr (this_cache, E_D2_REGNUM, 635 sc_base + AM33_SIGCONTEXT_D2); 636 trad_frame_set_reg_addr (this_cache, E_D3_REGNUM, 637 sc_base + AM33_SIGCONTEXT_D3); 638 639 trad_frame_set_reg_addr (this_cache, E_A0_REGNUM, 640 sc_base + AM33_SIGCONTEXT_A0); 641 trad_frame_set_reg_addr (this_cache, E_A1_REGNUM, 642 sc_base + AM33_SIGCONTEXT_A1); 643 trad_frame_set_reg_addr (this_cache, E_A2_REGNUM, 644 sc_base + AM33_SIGCONTEXT_A2); 645 trad_frame_set_reg_addr (this_cache, E_A3_REGNUM, 646 sc_base + AM33_SIGCONTEXT_A3); 647 648 trad_frame_set_reg_addr (this_cache, E_E0_REGNUM, 649 sc_base + AM33_SIGCONTEXT_E0); 650 trad_frame_set_reg_addr (this_cache, E_E1_REGNUM, 651 sc_base + AM33_SIGCONTEXT_E1); 652 trad_frame_set_reg_addr (this_cache, E_E2_REGNUM, 653 sc_base + AM33_SIGCONTEXT_E2); 654 trad_frame_set_reg_addr (this_cache, E_E3_REGNUM, 655 sc_base + AM33_SIGCONTEXT_E3); 656 trad_frame_set_reg_addr (this_cache, E_E4_REGNUM, 657 sc_base + AM33_SIGCONTEXT_E4); 658 trad_frame_set_reg_addr (this_cache, E_E5_REGNUM, 659 sc_base + AM33_SIGCONTEXT_E5); 660 trad_frame_set_reg_addr (this_cache, E_E6_REGNUM, 661 sc_base + AM33_SIGCONTEXT_E6); 662 trad_frame_set_reg_addr (this_cache, E_E7_REGNUM, 663 sc_base + AM33_SIGCONTEXT_E7); 664 665 trad_frame_set_reg_addr (this_cache, E_LAR_REGNUM, 666 sc_base + AM33_SIGCONTEXT_LAR); 667 trad_frame_set_reg_addr (this_cache, E_LIR_REGNUM, 668 sc_base + AM33_SIGCONTEXT_LIR); 669 trad_frame_set_reg_addr (this_cache, E_MDR_REGNUM, 670 sc_base + AM33_SIGCONTEXT_MDR); 671 trad_frame_set_reg_addr (this_cache, E_MCVF_REGNUM, 672 sc_base + AM33_SIGCONTEXT_MCVF); 673 trad_frame_set_reg_addr (this_cache, E_MCRL_REGNUM, 674 sc_base + AM33_SIGCONTEXT_MCRL); 675 trad_frame_set_reg_addr (this_cache, E_MDRQ_REGNUM, 676 sc_base + AM33_SIGCONTEXT_MDRQ); 677 678 trad_frame_set_reg_addr (this_cache, E_SP_REGNUM, 679 sc_base + AM33_SIGCONTEXT_SP); 680 trad_frame_set_reg_addr (this_cache, E_PSW_REGNUM, 681 sc_base + AM33_SIGCONTEXT_EPSW); 682 trad_frame_set_reg_addr (this_cache, E_PC_REGNUM, 683 sc_base + AM33_SIGCONTEXT_PC); 684 685 fpubase = get_frame_memory_unsigned (this_frame, 686 sc_base + AM33_SIGCONTEXT_FPUCONTEXT, 687 4); 688 if (fpubase) 689 { 690 for (i = 0; i < 32; i++) 691 { 692 trad_frame_set_reg_addr (this_cache, E_FS0_REGNUM + i, 693 fpubase + 4 * i); 694 } 695 trad_frame_set_reg_addr (this_cache, E_FPCR_REGNUM, fpubase + 4 * 32); 696 } 697 698 trad_frame_set_id (this_cache, frame_id_build (sc_base, func)); 699} 700 701/* AM33 GNU/Linux osabi has been recognized. 702 Now's our chance to register our corefile handling. */ 703 704static void 705am33_linux_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch) 706{ 707 linux_init_abi (info, gdbarch); 708 709 set_gdbarch_iterate_over_regset_sections 710 (gdbarch, am33_iterate_over_regset_sections); 711 set_solib_svr4_fetch_link_map_offsets 712 (gdbarch, svr4_ilp32_fetch_link_map_offsets); 713 714 tramp_frame_prepend_unwinder (gdbarch, &am33_linux_sigframe); 715 tramp_frame_prepend_unwinder (gdbarch, &am33_linux_rt_sigframe); 716} 717 718void _initialize_mn10300_linux_tdep (); 719void 720_initialize_mn10300_linux_tdep () 721{ 722 gdbarch_register_osabi (bfd_arch_mn10300, 0, 723 GDB_OSABI_LINUX, am33_linux_init_osabi); 724} 725 726