1 /* Target-dependent code for GNU/Linux on s390. 2 3 Copyright (C) 2001-2023 Free Software Foundation, Inc. 4 5 Contributed by D.J. Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) 6 for IBM Deutschland Entwicklung GmbH, IBM Corporation. 7 8 This file is part of GDB. 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 3 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, see <http://www.gnu.org/licenses/>. */ 22 23 #include "defs.h" 24 25 #include "auxv.h" 26 #include "elf/common.h" 27 #include "frame-base.h" 28 #include "frame-unwind.h" 29 #include "gdbarch.h" 30 #include "gdbcore.h" 31 #include "linux-record.h" 32 #include "linux-tdep.h" 33 #include "objfiles.h" 34 #include "osabi.h" 35 #include "regcache.h" 36 #include "record-full.h" 37 #include "regset.h" 38 #include "s390-tdep.h" 39 #include "s390-linux-tdep.h" 40 #include "solib-svr4.h" 41 #include "target.h" 42 #include "trad-frame.h" 43 #include "xml-syscall.h" 44 45 #include "features/s390-linux32v1.c" 46 #include "features/s390-linux32v2.c" 47 #include "features/s390-linux64.c" 48 #include "features/s390-linux64v1.c" 49 #include "features/s390-linux64v2.c" 50 #include "features/s390-te-linux64.c" 51 #include "features/s390-vx-linux64.c" 52 #include "features/s390-tevx-linux64.c" 53 #include "features/s390-gs-linux64.c" 54 #include "features/s390x-linux64v1.c" 55 #include "features/s390x-linux64v2.c" 56 #include "features/s390x-te-linux64.c" 57 #include "features/s390x-vx-linux64.c" 58 #include "features/s390x-tevx-linux64.c" 59 #include "features/s390x-gs-linux64.c" 60 61 #define XML_SYSCALL_FILENAME_S390 "syscalls/s390-linux.xml" 62 #define XML_SYSCALL_FILENAME_S390X "syscalls/s390x-linux.xml" 63 64 65 /* Register handling. */ 66 67 /* Implement cannot_store_register gdbarch method. */ 68 69 static int 70 s390_cannot_store_register (struct gdbarch *gdbarch, int regnum) 71 { 72 /* The last-break address is read-only. */ 73 return regnum == S390_LAST_BREAK_REGNUM; 74 } 75 76 /* Implement write_pc gdbarch method. */ 77 78 static void 79 s390_write_pc (struct regcache *regcache, CORE_ADDR pc) 80 { 81 struct gdbarch *gdbarch = regcache->arch (); 82 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 83 84 regcache_cooked_write_unsigned (regcache, tdep->pc_regnum, pc); 85 86 /* Set special SYSTEM_CALL register to 0 to prevent the kernel from 87 messing with the PC we just installed, if we happen to be within 88 an interrupted system call that the kernel wants to restart. 89 90 Note that after we return from the dummy call, the SYSTEM_CALL and 91 ORIG_R2 registers will be automatically restored, and the kernel 92 continues to restart the system call at this point. */ 93 if (register_size (gdbarch, S390_SYSTEM_CALL_REGNUM) > 0) 94 regcache_cooked_write_unsigned (regcache, S390_SYSTEM_CALL_REGNUM, 0); 95 } 96 97 /* Maps for register sets. */ 98 99 static const struct regcache_map_entry s390_gregmap[] = 100 { 101 { 1, S390_PSWM_REGNUM }, 102 { 1, S390_PSWA_REGNUM }, 103 { 16, S390_R0_REGNUM }, 104 { 16, S390_A0_REGNUM }, 105 { 1, S390_ORIG_R2_REGNUM }, 106 { 0 } 107 }; 108 109 static const struct regcache_map_entry s390_fpregmap[] = 110 { 111 { 1, S390_FPC_REGNUM, 8 }, 112 { 16, S390_F0_REGNUM, 8 }, 113 { 0 } 114 }; 115 116 static const struct regcache_map_entry s390_regmap_upper[] = 117 { 118 { 16, S390_R0_UPPER_REGNUM, 4 }, 119 { 0 } 120 }; 121 122 static const struct regcache_map_entry s390_regmap_last_break[] = 123 { 124 { 1, REGCACHE_MAP_SKIP, 4 }, 125 { 1, S390_LAST_BREAK_REGNUM, 4 }, 126 { 0 } 127 }; 128 129 static const struct regcache_map_entry s390x_regmap_last_break[] = 130 { 131 { 1, S390_LAST_BREAK_REGNUM, 8 }, 132 { 0 } 133 }; 134 135 static const struct regcache_map_entry s390_regmap_system_call[] = 136 { 137 { 1, S390_SYSTEM_CALL_REGNUM, 4 }, 138 { 0 } 139 }; 140 141 static const struct regcache_map_entry s390_regmap_tdb[] = 142 { 143 { 1, S390_TDB_DWORD0_REGNUM, 8 }, 144 { 1, S390_TDB_ABORT_CODE_REGNUM, 8 }, 145 { 1, S390_TDB_CONFLICT_TOKEN_REGNUM, 8 }, 146 { 1, S390_TDB_ATIA_REGNUM, 8 }, 147 { 12, REGCACHE_MAP_SKIP, 8 }, 148 { 16, S390_TDB_R0_REGNUM, 8 }, 149 { 0 } 150 }; 151 152 static const struct regcache_map_entry s390_regmap_vxrs_low[] = 153 { 154 { 16, S390_V0_LOWER_REGNUM, 8 }, 155 { 0 } 156 }; 157 158 static const struct regcache_map_entry s390_regmap_vxrs_high[] = 159 { 160 { 16, S390_V16_REGNUM, 16 }, 161 { 0 } 162 }; 163 164 static const struct regcache_map_entry s390_regmap_gs[] = 165 { 166 { 1, REGCACHE_MAP_SKIP, 8 }, 167 { 1, S390_GSD_REGNUM, 8 }, 168 { 1, S390_GSSM_REGNUM, 8 }, 169 { 1, S390_GSEPLA_REGNUM, 8 }, 170 { 0 } 171 }; 172 173 static const struct regcache_map_entry s390_regmap_gsbc[] = 174 { 175 { 1, REGCACHE_MAP_SKIP, 8 }, 176 { 1, S390_BC_GSD_REGNUM, 8 }, 177 { 1, S390_BC_GSSM_REGNUM, 8 }, 178 { 1, S390_BC_GSEPLA_REGNUM, 8 }, 179 { 0 } 180 }; 181 182 /* Supply the TDB regset. Like regcache_supply_regset, but invalidate 183 the TDB registers unless the TDB format field is valid. */ 184 185 static void 186 s390_supply_tdb_regset (const struct regset *regset, struct regcache *regcache, 187 int regnum, const void *regs, size_t len) 188 { 189 ULONGEST tdw; 190 enum register_status ret; 191 192 regcache_supply_regset (regset, regcache, regnum, regs, len); 193 ret = regcache_cooked_read_unsigned (regcache, S390_TDB_DWORD0_REGNUM, &tdw); 194 if (ret != REG_VALID || (tdw >> 56) != 1) 195 regcache_supply_regset (regset, regcache, regnum, NULL, len); 196 } 197 198 const struct regset s390_gregset = { 199 s390_gregmap, 200 regcache_supply_regset, 201 regcache_collect_regset 202 }; 203 204 const struct regset s390_fpregset = { 205 s390_fpregmap, 206 regcache_supply_regset, 207 regcache_collect_regset 208 }; 209 210 static const struct regset s390_upper_regset = { 211 s390_regmap_upper, 212 regcache_supply_regset, 213 regcache_collect_regset 214 }; 215 216 const struct regset s390_last_break_regset = { 217 s390_regmap_last_break, 218 regcache_supply_regset, 219 regcache_collect_regset 220 }; 221 222 const struct regset s390x_last_break_regset = { 223 s390x_regmap_last_break, 224 regcache_supply_regset, 225 regcache_collect_regset 226 }; 227 228 const struct regset s390_system_call_regset = { 229 s390_regmap_system_call, 230 regcache_supply_regset, 231 regcache_collect_regset 232 }; 233 234 const struct regset s390_tdb_regset = { 235 s390_regmap_tdb, 236 s390_supply_tdb_regset, 237 regcache_collect_regset 238 }; 239 240 const struct regset s390_vxrs_low_regset = { 241 s390_regmap_vxrs_low, 242 regcache_supply_regset, 243 regcache_collect_regset 244 }; 245 246 const struct regset s390_vxrs_high_regset = { 247 s390_regmap_vxrs_high, 248 regcache_supply_regset, 249 regcache_collect_regset 250 }; 251 252 const struct regset s390_gs_regset = { 253 s390_regmap_gs, 254 regcache_supply_regset, 255 regcache_collect_regset 256 }; 257 258 const struct regset s390_gsbc_regset = { 259 s390_regmap_gsbc, 260 regcache_supply_regset, 261 regcache_collect_regset 262 }; 263 264 /* Iterate over supported core file register note sections. */ 265 266 static void 267 s390_iterate_over_regset_sections (struct gdbarch *gdbarch, 268 iterate_over_regset_sections_cb *cb, 269 void *cb_data, 270 const struct regcache *regcache) 271 { 272 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 273 const int gregset_size = (tdep->abi == ABI_LINUX_S390 ? 274 s390_sizeof_gregset : s390x_sizeof_gregset); 275 276 cb (".reg", gregset_size, gregset_size, &s390_gregset, NULL, cb_data); 277 cb (".reg2", s390_sizeof_fpregset, s390_sizeof_fpregset, &s390_fpregset, NULL, 278 cb_data); 279 280 if (tdep->abi == ABI_LINUX_S390 && tdep->gpr_full_regnum != -1) 281 cb (".reg-s390-high-gprs", 16 * 4, 16 * 4, &s390_upper_regset, 282 "s390 GPR upper halves", cb_data); 283 284 if (tdep->have_linux_v1) 285 cb (".reg-s390-last-break", 8, 8, 286 (gdbarch_ptr_bit (gdbarch) == 32 287 ? &s390_last_break_regset : &s390x_last_break_regset), 288 "s390 last-break address", cb_data); 289 290 if (tdep->have_linux_v2) 291 cb (".reg-s390-system-call", 4, 4, &s390_system_call_regset, 292 "s390 system-call", cb_data); 293 294 /* If regcache is set, we are in "write" (gcore) mode. In this 295 case, don't iterate over the TDB unless its registers are 296 available. */ 297 if (tdep->have_tdb 298 && (regcache == NULL 299 || (REG_VALID 300 == regcache->get_register_status (S390_TDB_DWORD0_REGNUM)))) 301 cb (".reg-s390-tdb", s390_sizeof_tdbregset, s390_sizeof_tdbregset, 302 &s390_tdb_regset, "s390 TDB", cb_data); 303 304 if (tdep->v0_full_regnum != -1) 305 { 306 cb (".reg-s390-vxrs-low", 16 * 8, 16 * 8, &s390_vxrs_low_regset, 307 "s390 vector registers 0-15 lower half", cb_data); 308 cb (".reg-s390-vxrs-high", 16 * 16, 16 * 16, &s390_vxrs_high_regset, 309 "s390 vector registers 16-31", cb_data); 310 } 311 312 /* Iterate over the guarded-storage regsets if in "read" mode, or if 313 their registers are available. */ 314 if (tdep->have_gs) 315 { 316 if (regcache == NULL 317 || REG_VALID == regcache->get_register_status (S390_GSD_REGNUM)) 318 cb (".reg-s390-gs-cb", 4 * 8, 4 * 8, &s390_gs_regset, 319 "s390 guarded-storage registers", cb_data); 320 321 if (regcache == NULL 322 || REG_VALID == regcache->get_register_status (S390_BC_GSD_REGNUM)) 323 cb (".reg-s390-gs-bc", 4 * 8, 4 * 8, &s390_gsbc_regset, 324 "s390 guarded-storage broadcast control", cb_data); 325 } 326 } 327 328 /* Implement core_read_description gdbarch method. */ 329 330 static const struct target_desc * 331 s390_core_read_description (struct gdbarch *gdbarch, 332 struct target_ops *target, bfd *abfd) 333 { 334 asection *section = bfd_get_section_by_name (abfd, ".reg"); 335 gdb::optional<gdb::byte_vector> auxv = target_read_auxv_raw (target); 336 CORE_ADDR hwcap = linux_get_hwcap (auxv, target, gdbarch); 337 bool high_gprs, v1, v2, te, vx, gs; 338 339 if (!section) 340 return NULL; 341 342 high_gprs = (bfd_get_section_by_name (abfd, ".reg-s390-high-gprs") 343 != NULL); 344 v1 = (bfd_get_section_by_name (abfd, ".reg-s390-last-break") != NULL); 345 v2 = (bfd_get_section_by_name (abfd, ".reg-s390-system-call") != NULL); 346 vx = (hwcap & HWCAP_S390_VX); 347 te = (hwcap & HWCAP_S390_TE); 348 gs = (hwcap & HWCAP_S390_GS); 349 350 switch (bfd_section_size (section)) 351 { 352 case s390_sizeof_gregset: 353 if (high_gprs) 354 return (gs ? tdesc_s390_gs_linux64 : 355 te && vx ? tdesc_s390_tevx_linux64 : 356 vx ? tdesc_s390_vx_linux64 : 357 te ? tdesc_s390_te_linux64 : 358 v2 ? tdesc_s390_linux64v2 : 359 v1 ? tdesc_s390_linux64v1 : tdesc_s390_linux64); 360 else 361 return (v2 ? tdesc_s390_linux32v2 : 362 v1 ? tdesc_s390_linux32v1 : tdesc_s390_linux32); 363 364 case s390x_sizeof_gregset: 365 return (gs ? tdesc_s390x_gs_linux64 : 366 te && vx ? tdesc_s390x_tevx_linux64 : 367 vx ? tdesc_s390x_vx_linux64 : 368 te ? tdesc_s390x_te_linux64 : 369 v2 ? tdesc_s390x_linux64v2 : 370 v1 ? tdesc_s390x_linux64v1 : tdesc_s390x_linux64); 371 372 default: 373 return NULL; 374 } 375 } 376 377 /* Frame unwinding. */ 378 379 /* Signal trampoline stack frames. */ 380 381 struct s390_sigtramp_unwind_cache { 382 CORE_ADDR frame_base; 383 trad_frame_saved_reg *saved_regs; 384 }; 385 386 /* Unwind THIS_FRAME and return the corresponding unwind cache for 387 s390_sigtramp_frame_unwind. */ 388 389 static struct s390_sigtramp_unwind_cache * 390 s390_sigtramp_frame_unwind_cache (frame_info_ptr this_frame, 391 void **this_prologue_cache) 392 { 393 struct gdbarch *gdbarch = get_frame_arch (this_frame); 394 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 395 int word_size = gdbarch_ptr_bit (gdbarch) / 8; 396 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); 397 struct s390_sigtramp_unwind_cache *info; 398 ULONGEST this_sp, prev_sp; 399 CORE_ADDR next_ra, next_cfa, sigreg_ptr, sigreg_high_off; 400 int i; 401 402 if (*this_prologue_cache) 403 return (struct s390_sigtramp_unwind_cache *) *this_prologue_cache; 404 405 info = FRAME_OBSTACK_ZALLOC (struct s390_sigtramp_unwind_cache); 406 *this_prologue_cache = info; 407 info->saved_regs = trad_frame_alloc_saved_regs (this_frame); 408 409 this_sp = get_frame_register_unsigned (this_frame, S390_SP_REGNUM); 410 next_ra = get_frame_pc (this_frame); 411 next_cfa = this_sp + 16*word_size + 32; 412 413 /* New-style RT frame: 414 retcode + alignment (8 bytes) 415 siginfo (128 bytes) 416 ucontext (contains sigregs at offset 5 words). */ 417 if (next_ra == next_cfa) 418 { 419 sigreg_ptr = next_cfa + 8 + 128 + align_up (5*word_size, 8); 420 /* sigregs are followed by uc_sigmask (8 bytes), then by the 421 upper GPR halves if present. */ 422 sigreg_high_off = 8; 423 } 424 425 /* Old-style RT frame and all non-RT frames: 426 old signal mask (8 bytes) 427 pointer to sigregs. */ 428 else 429 { 430 sigreg_ptr = read_memory_unsigned_integer (next_cfa + 8, 431 word_size, byte_order); 432 /* sigregs are followed by signo (4 bytes), then by the 433 upper GPR halves if present. */ 434 sigreg_high_off = 4; 435 } 436 437 /* The sigregs structure looks like this: 438 long psw_mask; 439 long psw_addr; 440 long gprs[16]; 441 int acrs[16]; 442 int fpc; 443 int __pad; 444 double fprs[16]; */ 445 446 /* PSW mask and address. */ 447 info->saved_regs[S390_PSWM_REGNUM].set_addr (sigreg_ptr); 448 sigreg_ptr += word_size; 449 info->saved_regs[S390_PSWA_REGNUM].set_addr (sigreg_ptr); 450 sigreg_ptr += word_size; 451 452 /* Then the GPRs. */ 453 for (i = 0; i < 16; i++) 454 { 455 info->saved_regs[S390_R0_REGNUM + i].set_addr (sigreg_ptr); 456 sigreg_ptr += word_size; 457 } 458 459 /* Then the ACRs. */ 460 for (i = 0; i < 16; i++) 461 { 462 info->saved_regs[S390_A0_REGNUM + i].set_addr (sigreg_ptr); 463 sigreg_ptr += 4; 464 } 465 466 /* The floating-point control word. */ 467 info->saved_regs[S390_FPC_REGNUM].set_addr (sigreg_ptr); 468 sigreg_ptr += 8; 469 470 /* And finally the FPRs. */ 471 for (i = 0; i < 16; i++) 472 { 473 info->saved_regs[S390_F0_REGNUM + i].set_addr (sigreg_ptr); 474 sigreg_ptr += 8; 475 } 476 477 /* If we have them, the GPR upper halves are appended at the end. */ 478 sigreg_ptr += sigreg_high_off; 479 if (tdep->gpr_full_regnum != -1) 480 for (i = 0; i < 16; i++) 481 { 482 info->saved_regs[S390_R0_UPPER_REGNUM + i].set_addr (sigreg_ptr); 483 sigreg_ptr += 4; 484 } 485 486 /* Restore the previous frame's SP. */ 487 prev_sp = read_memory_unsigned_integer ( 488 info->saved_regs[S390_SP_REGNUM].addr (), 489 word_size, byte_order); 490 491 /* Determine our frame base. */ 492 info->frame_base = prev_sp + 16*word_size + 32; 493 494 return info; 495 } 496 497 /* Implement this_id frame_unwind method for s390_sigtramp_frame_unwind. */ 498 499 static void 500 s390_sigtramp_frame_this_id (frame_info_ptr this_frame, 501 void **this_prologue_cache, 502 struct frame_id *this_id) 503 { 504 struct s390_sigtramp_unwind_cache *info 505 = s390_sigtramp_frame_unwind_cache (this_frame, this_prologue_cache); 506 *this_id = frame_id_build (info->frame_base, get_frame_pc (this_frame)); 507 } 508 509 /* Implement prev_register frame_unwind method for sigtramp frames. */ 510 511 static struct value * 512 s390_sigtramp_frame_prev_register (frame_info_ptr this_frame, 513 void **this_prologue_cache, int regnum) 514 { 515 struct s390_sigtramp_unwind_cache *info 516 = s390_sigtramp_frame_unwind_cache (this_frame, this_prologue_cache); 517 return s390_trad_frame_prev_register (this_frame, info->saved_regs, regnum); 518 } 519 520 /* Implement sniffer frame_unwind method for sigtramp frames. */ 521 522 static int 523 s390_sigtramp_frame_sniffer (const struct frame_unwind *self, 524 frame_info_ptr this_frame, 525 void **this_prologue_cache) 526 { 527 CORE_ADDR pc = get_frame_pc (this_frame); 528 bfd_byte sigreturn[2]; 529 530 if (target_read_memory (pc, sigreturn, 2)) 531 return 0; 532 533 if (sigreturn[0] != op_svc) 534 return 0; 535 536 if (sigreturn[1] != 119 /* sigreturn */ 537 && sigreturn[1] != 173 /* rt_sigreturn */) 538 return 0; 539 540 return 1; 541 } 542 543 /* S390 sigtramp frame unwinder. */ 544 545 static const struct frame_unwind s390_sigtramp_frame_unwind = { 546 "s390 linux sigtramp", 547 SIGTRAMP_FRAME, 548 default_frame_unwind_stop_reason, 549 s390_sigtramp_frame_this_id, 550 s390_sigtramp_frame_prev_register, 551 NULL, 552 s390_sigtramp_frame_sniffer 553 }; 554 555 /* Syscall handling. */ 556 557 /* Retrieve the syscall number at a ptrace syscall-stop. Return -1 558 upon error. */ 559 560 static LONGEST 561 s390_linux_get_syscall_number (struct gdbarch *gdbarch, 562 thread_info *thread) 563 { 564 struct regcache *regs = get_thread_regcache (thread); 565 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 566 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); 567 ULONGEST pc; 568 ULONGEST svc_number = -1; 569 unsigned opcode; 570 571 /* Assume that the PC points after the 2-byte SVC instruction. We 572 don't currently support SVC via EXECUTE. */ 573 regcache_cooked_read_unsigned (regs, tdep->pc_regnum, &pc); 574 pc -= 2; 575 opcode = read_memory_unsigned_integer ((CORE_ADDR) pc, 1, byte_order); 576 if (opcode != op_svc) 577 return -1; 578 579 svc_number = read_memory_unsigned_integer ((CORE_ADDR) pc + 1, 1, 580 byte_order); 581 if (svc_number == 0) 582 regcache_cooked_read_unsigned (regs, S390_R1_REGNUM, &svc_number); 583 584 return svc_number; 585 } 586 587 /* Process record-replay */ 588 589 static struct linux_record_tdep s390_linux_record_tdep; 590 static struct linux_record_tdep s390x_linux_record_tdep; 591 592 /* Record all registers but PC register for process-record. */ 593 594 static int 595 s390_all_but_pc_registers_record (struct regcache *regcache) 596 { 597 struct gdbarch *gdbarch = regcache->arch (); 598 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 599 int i; 600 601 for (i = 0; i < 16; i++) 602 { 603 if (record_full_arch_list_add_reg (regcache, S390_R0_REGNUM + i)) 604 return -1; 605 if (record_full_arch_list_add_reg (regcache, S390_A0_REGNUM + i)) 606 return -1; 607 if (record_full_arch_list_add_reg (regcache, S390_F0_REGNUM + i)) 608 return -1; 609 if (tdep->gpr_full_regnum != -1) 610 if (record_full_arch_list_add_reg (regcache, S390_R0_UPPER_REGNUM + i)) 611 return -1; 612 if (tdep->v0_full_regnum != -1) 613 { 614 if (record_full_arch_list_add_reg (regcache, S390_V0_LOWER_REGNUM + i)) 615 return -1; 616 if (record_full_arch_list_add_reg (regcache, S390_V16_REGNUM + i)) 617 return -1; 618 } 619 } 620 if (record_full_arch_list_add_reg (regcache, S390_PSWM_REGNUM)) 621 return -1; 622 if (record_full_arch_list_add_reg (regcache, S390_FPC_REGNUM)) 623 return -1; 624 625 return 0; 626 } 627 628 /* Canonicalize system call SYSCALL belonging to ABI. Helper for 629 s390_linux_syscall_record. */ 630 631 static enum gdb_syscall 632 s390_canonicalize_syscall (int syscall, enum s390_abi_kind abi) 633 { 634 switch (syscall) 635 { 636 /* s390 syscall numbers < 222 are mostly the same as x86, so just list 637 the exceptions. */ 638 case 0: 639 return gdb_sys_no_syscall; 640 case 7: 641 return gdb_sys_restart_syscall; 642 /* These syscalls work only on 31-bit. */ 643 case 13: /* time */ 644 case 16: /* lchown[16] */ 645 case 23: /* setuid[16] */ 646 case 24: /* getuid[16] */ 647 case 25: /* stime */ 648 case 46: /* setgid[16] */ 649 case 47: /* getgid[16] */ 650 case 49: /* seteuid[16] */ 651 case 50: /* getegid[16] */ 652 case 70: /* setreuid[16] */ 653 case 71: /* setregid[16] */ 654 case 76: /* [old_]getrlimit */ 655 case 80: /* getgroups[16] */ 656 case 81: /* setgroups[16] */ 657 case 95: /* fchown[16] */ 658 case 101: /* ioperm */ 659 case 138: /* setfsuid[16] */ 660 case 139: /* setfsgid[16] */ 661 case 140: /* _llseek */ 662 case 164: /* setresuid[16] */ 663 case 165: /* getresuid[16] */ 664 case 170: /* setresgid[16] */ 665 case 171: /* getresgid[16] */ 666 case 182: /* chown[16] */ 667 case 192: /* mmap2 */ 668 case 193: /* truncate64 */ 669 case 194: /* ftruncate64 */ 670 case 195: /* stat64 */ 671 case 196: /* lstat64 */ 672 case 197: /* fstat64 */ 673 case 221: /* fcntl64 */ 674 if (abi == ABI_LINUX_S390) 675 return (enum gdb_syscall) syscall; 676 return gdb_sys_no_syscall; 677 /* These syscalls don't exist on s390. */ 678 case 17: /* break */ 679 case 18: /* oldstat */ 680 case 28: /* oldfstat */ 681 case 31: /* stty */ 682 case 32: /* gtty */ 683 case 35: /* ftime */ 684 case 44: /* prof */ 685 case 53: /* lock */ 686 case 56: /* mpx */ 687 case 58: /* ulimit */ 688 case 59: /* oldolduname */ 689 case 68: /* sgetmask */ 690 case 69: /* ssetmask */ 691 case 82: /* [old_]select */ 692 case 84: /* oldlstat */ 693 case 98: /* profil */ 694 case 109: /* olduname */ 695 case 113: /* vm86old */ 696 case 123: /* modify_ldt */ 697 case 166: /* vm86 */ 698 return gdb_sys_no_syscall; 699 case 110: 700 return gdb_sys_lookup_dcookie; 701 /* Here come the differences. */ 702 case 222: 703 return gdb_sys_readahead; 704 case 223: 705 if (abi == ABI_LINUX_S390) 706 return gdb_sys_sendfile64; 707 return gdb_sys_no_syscall; 708 /* 224-235 handled below */ 709 case 236: 710 return gdb_sys_gettid; 711 case 237: 712 return gdb_sys_tkill; 713 case 238: 714 return gdb_sys_futex; 715 case 239: 716 return gdb_sys_sched_setaffinity; 717 case 240: 718 return gdb_sys_sched_getaffinity; 719 case 241: 720 return gdb_sys_tgkill; 721 /* 242 reserved */ 722 case 243: 723 return gdb_sys_io_setup; 724 case 244: 725 return gdb_sys_io_destroy; 726 case 245: 727 return gdb_sys_io_getevents; 728 case 246: 729 return gdb_sys_io_submit; 730 case 247: 731 return gdb_sys_io_cancel; 732 case 248: 733 return gdb_sys_exit_group; 734 case 249: 735 return gdb_sys_epoll_create; 736 case 250: 737 return gdb_sys_epoll_ctl; 738 case 251: 739 return gdb_sys_epoll_wait; 740 case 252: 741 return gdb_sys_set_tid_address; 742 case 253: 743 return gdb_sys_fadvise64; 744 /* 254-262 handled below */ 745 /* 263 reserved */ 746 case 264: 747 if (abi == ABI_LINUX_S390) 748 return gdb_sys_fadvise64_64; 749 return gdb_sys_no_syscall; 750 case 265: 751 return gdb_sys_statfs64; 752 case 266: 753 return gdb_sys_fstatfs64; 754 case 267: 755 return gdb_sys_remap_file_pages; 756 /* 268-270 reserved */ 757 /* 271-277 handled below */ 758 case 278: 759 return gdb_sys_add_key; 760 case 279: 761 return gdb_sys_request_key; 762 case 280: 763 return gdb_sys_keyctl; 764 case 281: 765 return gdb_sys_waitid; 766 /* 282-312 handled below */ 767 case 293: 768 if (abi == ABI_LINUX_S390) 769 return gdb_sys_fstatat64; 770 return gdb_sys_newfstatat; 771 /* 313+ not yet supported */ 772 default: 773 { 774 int ret; 775 776 /* Most "old" syscalls copied from i386. */ 777 if (syscall <= 221) 778 ret = syscall; 779 /* xattr syscalls. */ 780 else if (syscall >= 224 && syscall <= 235) 781 ret = syscall + 2; 782 /* timer syscalls. */ 783 else if (syscall >= 254 && syscall <= 262) 784 ret = syscall + 5; 785 /* mq_* and kexec_load */ 786 else if (syscall >= 271 && syscall <= 277) 787 ret = syscall + 6; 788 /* ioprio_set .. epoll_pwait */ 789 else if (syscall >= 282 && syscall <= 312) 790 ret = syscall + 7; 791 else if (syscall == 349) 792 ret = gdb_sys_getrandom; 793 else 794 ret = gdb_sys_no_syscall; 795 796 return (enum gdb_syscall) ret; 797 } 798 } 799 } 800 801 /* Record a system call. Returns 0 on success, -1 otherwise. 802 Helper function for s390_process_record. */ 803 804 static int 805 s390_linux_syscall_record (struct regcache *regcache, LONGEST syscall_native) 806 { 807 struct gdbarch *gdbarch = regcache->arch (); 808 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 809 int ret; 810 enum gdb_syscall syscall_gdb; 811 812 /* On s390, syscall number can be passed either as immediate field of svc 813 instruction, or in %r1 (with svc 0). */ 814 if (syscall_native == 0) 815 regcache_raw_read_signed (regcache, S390_R1_REGNUM, &syscall_native); 816 817 syscall_gdb = s390_canonicalize_syscall (syscall_native, tdep->abi); 818 819 if (syscall_gdb < 0) 820 { 821 gdb_printf (gdb_stderr, 822 _("Process record and replay target doesn't " 823 "support syscall number %s\n"), 824 plongest (syscall_native)); 825 return -1; 826 } 827 828 if (syscall_gdb == gdb_sys_sigreturn 829 || syscall_gdb == gdb_sys_rt_sigreturn) 830 { 831 if (s390_all_but_pc_registers_record (regcache)) 832 return -1; 833 return 0; 834 } 835 836 if (tdep->abi == ABI_LINUX_ZSERIES) 837 ret = record_linux_system_call (syscall_gdb, regcache, 838 &s390x_linux_record_tdep); 839 else 840 ret = record_linux_system_call (syscall_gdb, regcache, 841 &s390_linux_record_tdep); 842 843 if (ret) 844 return ret; 845 846 /* Record the return value of the system call. */ 847 if (record_full_arch_list_add_reg (regcache, S390_R2_REGNUM)) 848 return -1; 849 850 return 0; 851 } 852 853 /* Implement process_record_signal gdbarch method. */ 854 855 static int 856 s390_linux_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, 857 enum gdb_signal signal) 858 { 859 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 860 /* There are two kinds of signal frames on s390. rt_sigframe is always 861 the larger one, so don't even bother with sigframe. */ 862 const int sizeof_rt_sigframe = (tdep->abi == ABI_LINUX_ZSERIES ? 863 160 + 8 + 128 + 1024 : 96 + 8 + 128 + 1000); 864 ULONGEST sp; 865 int i; 866 867 for (i = 0; i < 16; i++) 868 { 869 if (record_full_arch_list_add_reg (regcache, S390_R0_REGNUM + i)) 870 return -1; 871 if (tdep->gpr_full_regnum != -1) 872 if (record_full_arch_list_add_reg (regcache, S390_R0_UPPER_REGNUM + i)) 873 return -1; 874 } 875 if (record_full_arch_list_add_reg (regcache, S390_PSWA_REGNUM)) 876 return -1; 877 if (record_full_arch_list_add_reg (regcache, S390_PSWM_REGNUM)) 878 return -1; 879 880 /* Record the change in the stack. 881 frame-size = sizeof (struct rt_sigframe) + SIGNAL_FRAMESIZE */ 882 regcache_raw_read_unsigned (regcache, S390_SP_REGNUM, &sp); 883 sp -= sizeof_rt_sigframe; 884 885 if (record_full_arch_list_add_mem (sp, sizeof_rt_sigframe)) 886 return -1; 887 888 if (record_full_arch_list_add_end ()) 889 return -1; 890 891 return 0; 892 } 893 894 /* Initialize linux_record_tdep if not initialized yet. */ 895 896 static void 897 s390_init_linux_record_tdep (struct linux_record_tdep *record_tdep, 898 enum s390_abi_kind abi) 899 { 900 /* These values are the size of the type that will be used in a system 901 call. They are obtained from Linux Kernel source. */ 902 903 if (abi == ABI_LINUX_ZSERIES) 904 { 905 record_tdep->size_pointer = 8; 906 /* no _old_kernel_stat */ 907 record_tdep->size_tms = 32; 908 record_tdep->size_loff_t = 8; 909 record_tdep->size_flock = 32; 910 record_tdep->size_ustat = 32; 911 record_tdep->size_old_sigaction = 32; 912 record_tdep->size_old_sigset_t = 8; 913 record_tdep->size_rlimit = 16; 914 record_tdep->size_rusage = 144; 915 record_tdep->size_timeval = 16; 916 record_tdep->size_timezone = 8; 917 /* old_[ug]id_t never used */ 918 record_tdep->size_fd_set = 128; 919 record_tdep->size_old_dirent = 280; 920 record_tdep->size_statfs = 88; 921 record_tdep->size_statfs64 = 88; 922 record_tdep->size_sockaddr = 16; 923 record_tdep->size_int = 4; 924 record_tdep->size_long = 8; 925 record_tdep->size_ulong = 8; 926 record_tdep->size_msghdr = 56; 927 record_tdep->size_itimerval = 32; 928 record_tdep->size_stat = 144; 929 /* old_utsname unused */ 930 record_tdep->size_sysinfo = 112; 931 record_tdep->size_msqid_ds = 120; 932 record_tdep->size_shmid_ds = 112; 933 record_tdep->size_new_utsname = 390; 934 record_tdep->size_timex = 208; 935 record_tdep->size_mem_dqinfo = 24; 936 record_tdep->size_if_dqblk = 72; 937 record_tdep->size_fs_quota_stat = 80; 938 record_tdep->size_timespec = 16; 939 record_tdep->size_pollfd = 8; 940 record_tdep->size_NFS_FHSIZE = 32; 941 record_tdep->size_knfsd_fh = 132; 942 record_tdep->size_TASK_COMM_LEN = 16; 943 record_tdep->size_sigaction = 32; 944 record_tdep->size_sigset_t = 8; 945 record_tdep->size_siginfo_t = 128; 946 record_tdep->size_cap_user_data_t = 12; 947 record_tdep->size_stack_t = 24; 948 record_tdep->size_off_t = 8; 949 /* stat64 unused */ 950 record_tdep->size_gid_t = 4; 951 record_tdep->size_uid_t = 4; 952 record_tdep->size_PAGE_SIZE = 0x1000; /* 4KB */ 953 record_tdep->size_flock64 = 32; 954 record_tdep->size_io_event = 32; 955 record_tdep->size_iocb = 64; 956 record_tdep->size_epoll_event = 16; 957 record_tdep->size_itimerspec = 32; 958 record_tdep->size_mq_attr = 64; 959 record_tdep->size_termios = 36; 960 record_tdep->size_termios2 = 44; 961 record_tdep->size_pid_t = 4; 962 record_tdep->size_winsize = 8; 963 record_tdep->size_serial_struct = 72; 964 record_tdep->size_serial_icounter_struct = 80; 965 record_tdep->size_size_t = 8; 966 record_tdep->size_iovec = 16; 967 record_tdep->size_time_t = 8; 968 } 969 else if (abi == ABI_LINUX_S390) 970 { 971 record_tdep->size_pointer = 4; 972 record_tdep->size__old_kernel_stat = 32; 973 record_tdep->size_tms = 16; 974 record_tdep->size_loff_t = 8; 975 record_tdep->size_flock = 16; 976 record_tdep->size_ustat = 20; 977 record_tdep->size_old_sigaction = 16; 978 record_tdep->size_old_sigset_t = 4; 979 record_tdep->size_rlimit = 8; 980 record_tdep->size_rusage = 72; 981 record_tdep->size_timeval = 8; 982 record_tdep->size_timezone = 8; 983 record_tdep->size_old_gid_t = 2; 984 record_tdep->size_old_uid_t = 2; 985 record_tdep->size_fd_set = 128; 986 record_tdep->size_old_dirent = 268; 987 record_tdep->size_statfs = 64; 988 record_tdep->size_statfs64 = 88; 989 record_tdep->size_sockaddr = 16; 990 record_tdep->size_int = 4; 991 record_tdep->size_long = 4; 992 record_tdep->size_ulong = 4; 993 record_tdep->size_msghdr = 28; 994 record_tdep->size_itimerval = 16; 995 record_tdep->size_stat = 64; 996 /* old_utsname unused */ 997 record_tdep->size_sysinfo = 64; 998 record_tdep->size_msqid_ds = 88; 999 record_tdep->size_shmid_ds = 84; 1000 record_tdep->size_new_utsname = 390; 1001 record_tdep->size_timex = 128; 1002 record_tdep->size_mem_dqinfo = 24; 1003 record_tdep->size_if_dqblk = 72; 1004 record_tdep->size_fs_quota_stat = 80; 1005 record_tdep->size_timespec = 8; 1006 record_tdep->size_pollfd = 8; 1007 record_tdep->size_NFS_FHSIZE = 32; 1008 record_tdep->size_knfsd_fh = 132; 1009 record_tdep->size_TASK_COMM_LEN = 16; 1010 record_tdep->size_sigaction = 20; 1011 record_tdep->size_sigset_t = 8; 1012 record_tdep->size_siginfo_t = 128; 1013 record_tdep->size_cap_user_data_t = 12; 1014 record_tdep->size_stack_t = 12; 1015 record_tdep->size_off_t = 4; 1016 record_tdep->size_stat64 = 104; 1017 record_tdep->size_gid_t = 4; 1018 record_tdep->size_uid_t = 4; 1019 record_tdep->size_PAGE_SIZE = 0x1000; /* 4KB */ 1020 record_tdep->size_flock64 = 32; 1021 record_tdep->size_io_event = 32; 1022 record_tdep->size_iocb = 64; 1023 record_tdep->size_epoll_event = 16; 1024 record_tdep->size_itimerspec = 16; 1025 record_tdep->size_mq_attr = 32; 1026 record_tdep->size_termios = 36; 1027 record_tdep->size_termios2 = 44; 1028 record_tdep->size_pid_t = 4; 1029 record_tdep->size_winsize = 8; 1030 record_tdep->size_serial_struct = 60; 1031 record_tdep->size_serial_icounter_struct = 80; 1032 record_tdep->size_size_t = 4; 1033 record_tdep->size_iovec = 8; 1034 record_tdep->size_time_t = 4; 1035 } 1036 1037 /* These values are the second argument of system call "sys_fcntl" 1038 and "sys_fcntl64". They are obtained from Linux Kernel source. */ 1039 record_tdep->fcntl_F_GETLK = 5; 1040 record_tdep->fcntl_F_GETLK64 = 12; 1041 record_tdep->fcntl_F_SETLK64 = 13; 1042 record_tdep->fcntl_F_SETLKW64 = 14; 1043 1044 record_tdep->arg1 = S390_R2_REGNUM; 1045 record_tdep->arg2 = S390_R3_REGNUM; 1046 record_tdep->arg3 = S390_R4_REGNUM; 1047 record_tdep->arg4 = S390_R5_REGNUM; 1048 record_tdep->arg5 = S390_R6_REGNUM; 1049 1050 /* These values are the second argument of system call "sys_ioctl". 1051 They are obtained from Linux Kernel source. 1052 See arch/s390/include/uapi/asm/ioctls.h. */ 1053 1054 record_tdep->ioctl_TCGETS = 0x5401; 1055 record_tdep->ioctl_TCSETS = 0x5402; 1056 record_tdep->ioctl_TCSETSW = 0x5403; 1057 record_tdep->ioctl_TCSETSF = 0x5404; 1058 record_tdep->ioctl_TCGETA = 0x5405; 1059 record_tdep->ioctl_TCSETA = 0x5406; 1060 record_tdep->ioctl_TCSETAW = 0x5407; 1061 record_tdep->ioctl_TCSETAF = 0x5408; 1062 record_tdep->ioctl_TCSBRK = 0x5409; 1063 record_tdep->ioctl_TCXONC = 0x540a; 1064 record_tdep->ioctl_TCFLSH = 0x540b; 1065 record_tdep->ioctl_TIOCEXCL = 0x540c; 1066 record_tdep->ioctl_TIOCNXCL = 0x540d; 1067 record_tdep->ioctl_TIOCSCTTY = 0x540e; 1068 record_tdep->ioctl_TIOCGPGRP = 0x540f; 1069 record_tdep->ioctl_TIOCSPGRP = 0x5410; 1070 record_tdep->ioctl_TIOCOUTQ = 0x5411; 1071 record_tdep->ioctl_TIOCSTI = 0x5412; 1072 record_tdep->ioctl_TIOCGWINSZ = 0x5413; 1073 record_tdep->ioctl_TIOCSWINSZ = 0x5414; 1074 record_tdep->ioctl_TIOCMGET = 0x5415; 1075 record_tdep->ioctl_TIOCMBIS = 0x5416; 1076 record_tdep->ioctl_TIOCMBIC = 0x5417; 1077 record_tdep->ioctl_TIOCMSET = 0x5418; 1078 record_tdep->ioctl_TIOCGSOFTCAR = 0x5419; 1079 record_tdep->ioctl_TIOCSSOFTCAR = 0x541a; 1080 record_tdep->ioctl_FIONREAD = 0x541b; 1081 record_tdep->ioctl_TIOCINQ = 0x541b; /* alias */ 1082 record_tdep->ioctl_TIOCLINUX = 0x541c; 1083 record_tdep->ioctl_TIOCCONS = 0x541d; 1084 record_tdep->ioctl_TIOCGSERIAL = 0x541e; 1085 record_tdep->ioctl_TIOCSSERIAL = 0x541f; 1086 record_tdep->ioctl_TIOCPKT = 0x5420; 1087 record_tdep->ioctl_FIONBIO = 0x5421; 1088 record_tdep->ioctl_TIOCNOTTY = 0x5422; 1089 record_tdep->ioctl_TIOCSETD = 0x5423; 1090 record_tdep->ioctl_TIOCGETD = 0x5424; 1091 record_tdep->ioctl_TCSBRKP = 0x5425; 1092 record_tdep->ioctl_TIOCSBRK = 0x5427; 1093 record_tdep->ioctl_TIOCCBRK = 0x5428; 1094 record_tdep->ioctl_TIOCGSID = 0x5429; 1095 record_tdep->ioctl_TCGETS2 = 0x802c542a; 1096 record_tdep->ioctl_TCSETS2 = 0x402c542b; 1097 record_tdep->ioctl_TCSETSW2 = 0x402c542c; 1098 record_tdep->ioctl_TCSETSF2 = 0x402c542d; 1099 record_tdep->ioctl_TIOCGPTN = 0x80045430; 1100 record_tdep->ioctl_TIOCSPTLCK = 0x40045431; 1101 record_tdep->ioctl_FIONCLEX = 0x5450; 1102 record_tdep->ioctl_FIOCLEX = 0x5451; 1103 record_tdep->ioctl_FIOASYNC = 0x5452; 1104 record_tdep->ioctl_TIOCSERCONFIG = 0x5453; 1105 record_tdep->ioctl_TIOCSERGWILD = 0x5454; 1106 record_tdep->ioctl_TIOCSERSWILD = 0x5455; 1107 record_tdep->ioctl_TIOCGLCKTRMIOS = 0x5456; 1108 record_tdep->ioctl_TIOCSLCKTRMIOS = 0x5457; 1109 record_tdep->ioctl_TIOCSERGSTRUCT = 0x5458; 1110 record_tdep->ioctl_TIOCSERGETLSR = 0x5459; 1111 record_tdep->ioctl_TIOCSERGETMULTI = 0x545a; 1112 record_tdep->ioctl_TIOCSERSETMULTI = 0x545b; 1113 record_tdep->ioctl_TIOCMIWAIT = 0x545c; 1114 record_tdep->ioctl_TIOCGICOUNT = 0x545d; 1115 record_tdep->ioctl_FIOQSIZE = 0x545e; 1116 } 1117 1118 /* Initialize OSABI common for GNU/Linux on 31- and 64-bit systems. */ 1119 1120 static void 1121 s390_linux_init_abi_any (struct gdbarch_info info, struct gdbarch *gdbarch) 1122 { 1123 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 1124 1125 tdep->s390_syscall_record = s390_linux_syscall_record; 1126 1127 linux_init_abi (info, gdbarch, 1); 1128 1129 /* Register handling. */ 1130 set_gdbarch_core_read_description (gdbarch, s390_core_read_description); 1131 set_gdbarch_iterate_over_regset_sections (gdbarch, 1132 s390_iterate_over_regset_sections); 1133 set_gdbarch_write_pc (gdbarch, s390_write_pc); 1134 set_gdbarch_cannot_store_register (gdbarch, s390_cannot_store_register); 1135 1136 /* Syscall handling. */ 1137 set_gdbarch_get_syscall_number (gdbarch, s390_linux_get_syscall_number); 1138 1139 /* Frame handling. */ 1140 frame_unwind_append_unwinder (gdbarch, &s390_sigtramp_frame_unwind); 1141 set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target); 1142 1143 /* Enable TLS support. */ 1144 set_gdbarch_fetch_tls_load_module_address (gdbarch, 1145 svr4_fetch_objfile_link_map); 1146 1147 /* Support reverse debugging. */ 1148 set_gdbarch_process_record_signal (gdbarch, s390_linux_record_signal); 1149 s390_init_linux_record_tdep (&s390_linux_record_tdep, ABI_LINUX_S390); 1150 s390_init_linux_record_tdep (&s390x_linux_record_tdep, ABI_LINUX_ZSERIES); 1151 } 1152 1153 /* Initialize OSABI for GNU/Linux on 31-bit systems. */ 1154 1155 static void 1156 s390_linux_init_abi_31 (struct gdbarch_info info, struct gdbarch *gdbarch) 1157 { 1158 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 1159 1160 tdep->abi = ABI_LINUX_S390; 1161 1162 s390_linux_init_abi_any (info, gdbarch); 1163 1164 set_solib_svr4_fetch_link_map_offsets (gdbarch, 1165 linux_ilp32_fetch_link_map_offsets); 1166 set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_S390); 1167 } 1168 1169 /* Initialize OSABI for GNU/Linux on 64-bit systems. */ 1170 1171 static void 1172 s390_linux_init_abi_64 (struct gdbarch_info info, struct gdbarch *gdbarch) 1173 { 1174 s390_gdbarch_tdep *tdep = gdbarch_tdep<s390_gdbarch_tdep> (gdbarch); 1175 1176 tdep->abi = ABI_LINUX_ZSERIES; 1177 1178 s390_linux_init_abi_any (info, gdbarch); 1179 1180 set_solib_svr4_fetch_link_map_offsets (gdbarch, 1181 linux_lp64_fetch_link_map_offsets); 1182 set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_S390X); 1183 } 1184 1185 void _initialize_s390_linux_tdep (); 1186 void 1187 _initialize_s390_linux_tdep () 1188 { 1189 /* Hook us into the OSABI mechanism. */ 1190 gdbarch_register_osabi (bfd_arch_s390, bfd_mach_s390_31, GDB_OSABI_LINUX, 1191 s390_linux_init_abi_31); 1192 gdbarch_register_osabi (bfd_arch_s390, bfd_mach_s390_64, GDB_OSABI_LINUX, 1193 s390_linux_init_abi_64); 1194 1195 /* Initialize the GNU/Linux target descriptions. */ 1196 initialize_tdesc_s390_linux32v1 (); 1197 initialize_tdesc_s390_linux32v2 (); 1198 initialize_tdesc_s390_linux64 (); 1199 initialize_tdesc_s390_linux64v1 (); 1200 initialize_tdesc_s390_linux64v2 (); 1201 initialize_tdesc_s390_te_linux64 (); 1202 initialize_tdesc_s390_vx_linux64 (); 1203 initialize_tdesc_s390_tevx_linux64 (); 1204 initialize_tdesc_s390_gs_linux64 (); 1205 initialize_tdesc_s390x_linux64v1 (); 1206 initialize_tdesc_s390x_linux64v2 (); 1207 initialize_tdesc_s390x_te_linux64 (); 1208 initialize_tdesc_s390x_vx_linux64 (); 1209 initialize_tdesc_s390x_tevx_linux64 (); 1210 initialize_tdesc_s390x_gs_linux64 (); 1211 } 1212