1 /* Target-dependent code for GNU/Linux AArch64.
3 Copyright (C) 2009-2016 Free Software Foundation, Inc.
4 Contributed by ARM Ltd.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "arch-utils.h"
25 #include "glibc-tdep.h"
26 #include "linux-tdep.h"
27 #include "aarch64-tdep.h"
28 #include "aarch64-linux-tdep.h"
30 #include "solib-svr4.h"
32 #include "tramp-frame.h"
33 #include "trad-frame.h"
39 #include "cli/cli-utils.h"
40 #include "stap-probe.h"
41 #include "parser-defs.h"
42 #include "user-regs.h"
43 #include "xml-syscall.h"
46 #include "record-full.h"
47 #include "linux-record.h"
49 /* Signal frame handling.
64 | | | SIGTRAMP_FRAME (struct rt_sigframe)
66 +--| saved sp |--> interrupted_sp
67 | | saved pc |--> interrupted_pc
70 | | saved lr |--> default_restorer (movz x8, NR_sys_rt_sigreturn; svc 0)
76 On signal delivery, the kernel will create a signal handler stack
77 frame and setup the return address in LR to point at restorer stub.
78 The signal stack frame is defined by:
91 The ucontext has the following form:
94 unsigned long uc_flags;
95 struct ucontext *uc_link;
98 struct sigcontext uc_mcontext;
101 typedef struct sigaltstack
110 unsigned long fault_address;
111 unsigned long regs[31];
112 unsigned long sp; / * 31 * /
113 unsigned long pc; / * 32 * /
114 unsigned long pstate; / * 33 * /
115 __u8 __reserved[4096]
118 The restorer stub will always have the form:
120 d28015a8 movz x8, #0xad
123 This is a system call sys_rt_sigreturn.
125 We detect signal frames by snooping the return code for the restorer
126 instruction sequence.
128 The handler then needs to recover the saved register set from
129 ucontext.uc_mcontext. */
131 /* These magic numbers need to reflect the layout of the kernel
132 defined struct rt_sigframe and ucontext. */
133 #define AARCH64_SIGCONTEXT_REG_SIZE 8
134 #define AARCH64_RT_SIGFRAME_UCONTEXT_OFFSET 128
135 #define AARCH64_UCONTEXT_SIGCONTEXT_OFFSET 176
136 #define AARCH64_SIGCONTEXT_XO_OFFSET 8
138 /* Implement the "init" method of struct tramp_frame. */
141 aarch64_linux_sigframe_init (const struct tramp_frame *self,
142 struct frame_info *this_frame,
143 struct trad_frame_cache *this_cache,
146 struct gdbarch *gdbarch = get_frame_arch (this_frame);
147 CORE_ADDR sp = get_frame_register_unsigned (this_frame, AARCH64_SP_REGNUM);
148 CORE_ADDR sigcontext_addr =
150 + AARCH64_RT_SIGFRAME_UCONTEXT_OFFSET
151 + AARCH64_UCONTEXT_SIGCONTEXT_OFFSET;
154 for (i = 0; i < 31; i++)
156 trad_frame_set_reg_addr (this_cache,
157 AARCH64_X0_REGNUM + i,
158 sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
159 + i * AARCH64_SIGCONTEXT_REG_SIZE);
161 trad_frame_set_reg_addr (this_cache, AARCH64_SP_REGNUM,
162 sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
163 + 31 * AARCH64_SIGCONTEXT_REG_SIZE);
164 trad_frame_set_reg_addr (this_cache, AARCH64_PC_REGNUM,
165 sigcontext_addr + AARCH64_SIGCONTEXT_XO_OFFSET
166 + 32 * AARCH64_SIGCONTEXT_REG_SIZE);
168 trad_frame_set_id (this_cache, frame_id_build (sp, func));
171 static const struct tramp_frame aarch64_linux_rt_sigframe =
176 /* movz x8, 0x8b (S=1,o=10,h=0,i=0x8b,r=8)
177 Soo1 0010 1hhi iiii iiii iiii iiir rrrr */
180 /* svc 0x0 (o=0, l=1)
181 1101 0100 oooi iiii iiii iiii iii0 00ll */
183 {TRAMP_SENTINEL_INSN, -1}
185 aarch64_linux_sigframe_init
190 static const struct regcache_map_entry aarch64_linux_gregmap[] =
192 { 31, AARCH64_X0_REGNUM, 8 }, /* x0 ... x30 */
193 { 1, AARCH64_SP_REGNUM, 8 },
194 { 1, AARCH64_PC_REGNUM, 8 },
195 { 1, AARCH64_CPSR_REGNUM, 8 },
199 static const struct regcache_map_entry aarch64_linux_fpregmap[] =
201 { 32, AARCH64_V0_REGNUM, 16 }, /* v0 ... v31 */
202 { 1, AARCH64_FPSR_REGNUM, 4 },
203 { 1, AARCH64_FPCR_REGNUM, 4 },
207 /* Register set definitions. */
209 const struct regset aarch64_linux_gregset =
211 aarch64_linux_gregmap,
212 regcache_supply_regset, regcache_collect_regset
215 const struct regset aarch64_linux_fpregset =
217 aarch64_linux_fpregmap,
218 regcache_supply_regset, regcache_collect_regset
221 /* Implement the "regset_from_core_section" gdbarch method. */
224 aarch64_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
225 iterate_over_regset_sections_cb *cb,
227 const struct regcache *regcache)
229 cb (".reg", AARCH64_LINUX_SIZEOF_GREGSET, &aarch64_linux_gregset,
231 cb (".reg2", AARCH64_LINUX_SIZEOF_FPREGSET, &aarch64_linux_fpregset,
235 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
239 aarch64_stap_is_single_operand (struct gdbarch *gdbarch, const char *s)
241 return (*s == '#' || isdigit (*s) /* Literal number. */
242 || *s == '[' /* Register indirection. */
243 || isalpha (*s)); /* Register value. */
246 /* This routine is used to parse a special token in AArch64's assembly.
248 The special tokens parsed by it are:
250 - Register displacement (e.g, [fp, #-8])
252 It returns one if the special token has been parsed successfully,
253 or zero if the current token is not considered special. */
256 aarch64_stap_parse_special_token (struct gdbarch *gdbarch,
257 struct stap_parse_info *p)
261 /* Temporary holder for lookahead. */
262 const char *tmp = p->arg;
264 /* Used to save the register name. */
276 while (isalnum (*tmp))
283 regname = (char *) alloca (len + 2);
285 strncpy (regname, start, len);
288 if (user_reg_map_name_to_regnum (gdbarch, regname, len) == -1)
289 error (_("Invalid register name `%s' on expression `%s'."),
290 regname, p->saved_arg);
293 tmp = skip_spaces_const (tmp);
294 /* Now we expect a number. It can begin with '#' or simply
304 else if (*tmp == '+')
310 displacement = strtol (tmp, &endp, 10);
313 /* Skipping last `]'. */
317 /* The displacement. */
318 write_exp_elt_opcode (&p->pstate, OP_LONG);
319 write_exp_elt_type (&p->pstate, builtin_type (gdbarch)->builtin_long);
320 write_exp_elt_longcst (&p->pstate, displacement);
321 write_exp_elt_opcode (&p->pstate, OP_LONG);
323 write_exp_elt_opcode (&p->pstate, UNOP_NEG);
325 /* The register name. */
326 write_exp_elt_opcode (&p->pstate, OP_REGISTER);
329 write_exp_string (&p->pstate, str);
330 write_exp_elt_opcode (&p->pstate, OP_REGISTER);
332 write_exp_elt_opcode (&p->pstate, BINOP_ADD);
334 /* Casting to the expected type. */
335 write_exp_elt_opcode (&p->pstate, UNOP_CAST);
336 write_exp_elt_type (&p->pstate, lookup_pointer_type (p->arg_type));
337 write_exp_elt_opcode (&p->pstate, UNOP_CAST);
339 write_exp_elt_opcode (&p->pstate, UNOP_IND);
349 /* Implement the "get_syscall_number" gdbarch method. */
352 aarch64_linux_get_syscall_number (struct gdbarch *gdbarch,
355 struct regcache *regs = get_thread_regcache (ptid);
356 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
358 /* The content of register x8. */
359 gdb_byte buf[X_REGISTER_SIZE];
363 /* Getting the system call number from the register x8. */
364 regcache_cooked_read (regs, AARCH64_DWARF_X0 + 8, buf);
366 ret = extract_signed_integer (buf, X_REGISTER_SIZE, byte_order);
371 /* AArch64 process record-replay constructs: syscall, signal etc. */
373 struct linux_record_tdep aarch64_linux_record_tdep;
375 /* Enum that defines the AArch64 linux specific syscall identifiers used for
376 process record/replay. */
378 enum aarch64_syscall {
379 aarch64_sys_io_setup = 0,
380 aarch64_sys_io_destroy = 1,
381 aarch64_sys_io_submit = 2,
382 aarch64_sys_io_cancel = 3,
383 aarch64_sys_io_getevents = 4,
384 aarch64_sys_setxattr = 5,
385 aarch64_sys_lsetxattr = 6,
386 aarch64_sys_fsetxattr = 7,
387 aarch64_sys_getxattr = 8,
388 aarch64_sys_lgetxattr = 9,
389 aarch64_sys_fgetxattr = 10,
390 aarch64_sys_listxattr = 11,
391 aarch64_sys_llistxattr = 12,
392 aarch64_sys_flistxattr = 13,
393 aarch64_sys_removexattr = 14,
394 aarch64_sys_lremovexattr = 15,
395 aarch64_sys_fremovexattr = 16,
396 aarch64_sys_getcwd = 17,
397 aarch64_sys_lookup_dcookie = 18,
398 aarch64_sys_eventfd2 = 19,
399 aarch64_sys_epoll_create1 = 20,
400 aarch64_sys_epoll_ctl = 21,
401 aarch64_sys_epoll_pwait = 22,
402 aarch64_sys_dup = 23,
403 aarch64_sys_dup3 = 24,
404 aarch64_sys_fcntl = 25,
405 aarch64_sys_inotify_init1 = 26,
406 aarch64_sys_inotify_add_watch = 27,
407 aarch64_sys_inotify_rm_watch = 28,
408 aarch64_sys_ioctl = 29,
409 aarch64_sys_ioprio_set = 30,
410 aarch64_sys_ioprio_get = 31,
411 aarch64_sys_flock = 32,
412 aarch64_sys_mknodat = 33,
413 aarch64_sys_mkdirat = 34,
414 aarch64_sys_unlinkat = 35,
415 aarch64_sys_symlinkat = 36,
416 aarch64_sys_linkat = 37,
417 aarch64_sys_renameat = 38,
418 aarch64_sys_umount2 = 39,
419 aarch64_sys_mount = 40,
420 aarch64_sys_pivot_root = 41,
421 aarch64_sys_nfsservctl = 42,
422 aarch64_sys_statfs = 43,
423 aarch64_sys_fstatfs = 44,
424 aarch64_sys_truncate = 45,
425 aarch64_sys_ftruncate = 46,
426 aarch64_sys_fallocate = 47,
427 aarch64_sys_faccessat = 48,
428 aarch64_sys_chdir = 49,
429 aarch64_sys_fchdir = 50,
430 aarch64_sys_chroot = 51,
431 aarch64_sys_fchmod = 52,
432 aarch64_sys_fchmodat = 53,
433 aarch64_sys_fchownat = 54,
434 aarch64_sys_fchown = 55,
435 aarch64_sys_openat = 56,
436 aarch64_sys_close = 57,
437 aarch64_sys_vhangup = 58,
438 aarch64_sys_pipe2 = 59,
439 aarch64_sys_quotactl = 60,
440 aarch64_sys_getdents64 = 61,
441 aarch64_sys_lseek = 62,
442 aarch64_sys_read = 63,
443 aarch64_sys_write = 64,
444 aarch64_sys_readv = 65,
445 aarch64_sys_writev = 66,
446 aarch64_sys_pread64 = 67,
447 aarch64_sys_pwrite64 = 68,
448 aarch64_sys_preadv = 69,
449 aarch64_sys_pwritev = 70,
450 aarch64_sys_sendfile = 71,
451 aarch64_sys_pselect6 = 72,
452 aarch64_sys_ppoll = 73,
453 aarch64_sys_signalfd4 = 74,
454 aarch64_sys_vmsplice = 75,
455 aarch64_sys_splice = 76,
456 aarch64_sys_tee = 77,
457 aarch64_sys_readlinkat = 78,
458 aarch64_sys_newfstatat = 79,
459 aarch64_sys_fstat = 80,
460 aarch64_sys_sync = 81,
461 aarch64_sys_fsync = 82,
462 aarch64_sys_fdatasync = 83,
463 aarch64_sys_sync_file_range2 = 84,
464 aarch64_sys_sync_file_range = 84,
465 aarch64_sys_timerfd_create = 85,
466 aarch64_sys_timerfd_settime = 86,
467 aarch64_sys_timerfd_gettime = 87,
468 aarch64_sys_utimensat = 88,
469 aarch64_sys_acct = 89,
470 aarch64_sys_capget = 90,
471 aarch64_sys_capset = 91,
472 aarch64_sys_personality = 92,
473 aarch64_sys_exit = 93,
474 aarch64_sys_exit_group = 94,
475 aarch64_sys_waitid = 95,
476 aarch64_sys_set_tid_address = 96,
477 aarch64_sys_unshare = 97,
478 aarch64_sys_futex = 98,
479 aarch64_sys_set_robust_list = 99,
480 aarch64_sys_get_robust_list = 100,
481 aarch64_sys_nanosleep = 101,
482 aarch64_sys_getitimer = 102,
483 aarch64_sys_setitimer = 103,
484 aarch64_sys_kexec_load = 104,
485 aarch64_sys_init_module = 105,
486 aarch64_sys_delete_module = 106,
487 aarch64_sys_timer_create = 107,
488 aarch64_sys_timer_gettime = 108,
489 aarch64_sys_timer_getoverrun = 109,
490 aarch64_sys_timer_settime = 110,
491 aarch64_sys_timer_delete = 111,
492 aarch64_sys_clock_settime = 112,
493 aarch64_sys_clock_gettime = 113,
494 aarch64_sys_clock_getres = 114,
495 aarch64_sys_clock_nanosleep = 115,
496 aarch64_sys_syslog = 116,
497 aarch64_sys_ptrace = 117,
498 aarch64_sys_sched_setparam = 118,
499 aarch64_sys_sched_setscheduler = 119,
500 aarch64_sys_sched_getscheduler = 120,
501 aarch64_sys_sched_getparam = 121,
502 aarch64_sys_sched_setaffinity = 122,
503 aarch64_sys_sched_getaffinity = 123,
504 aarch64_sys_sched_yield = 124,
505 aarch64_sys_sched_get_priority_max = 125,
506 aarch64_sys_sched_get_priority_min = 126,
507 aarch64_sys_sched_rr_get_interval = 127,
508 aarch64_sys_kill = 129,
509 aarch64_sys_tkill = 130,
510 aarch64_sys_tgkill = 131,
511 aarch64_sys_sigaltstack = 132,
512 aarch64_sys_rt_sigsuspend = 133,
513 aarch64_sys_rt_sigaction = 134,
514 aarch64_sys_rt_sigprocmask = 135,
515 aarch64_sys_rt_sigpending = 136,
516 aarch64_sys_rt_sigtimedwait = 137,
517 aarch64_sys_rt_sigqueueinfo = 138,
518 aarch64_sys_rt_sigreturn = 139,
519 aarch64_sys_setpriority = 140,
520 aarch64_sys_getpriority = 141,
521 aarch64_sys_reboot = 142,
522 aarch64_sys_setregid = 143,
523 aarch64_sys_setgid = 144,
524 aarch64_sys_setreuid = 145,
525 aarch64_sys_setuid = 146,
526 aarch64_sys_setresuid = 147,
527 aarch64_sys_getresuid = 148,
528 aarch64_sys_setresgid = 149,
529 aarch64_sys_getresgid = 150,
530 aarch64_sys_setfsuid = 151,
531 aarch64_sys_setfsgid = 152,
532 aarch64_sys_times = 153,
533 aarch64_sys_setpgid = 154,
534 aarch64_sys_getpgid = 155,
535 aarch64_sys_getsid = 156,
536 aarch64_sys_setsid = 157,
537 aarch64_sys_getgroups = 158,
538 aarch64_sys_setgroups = 159,
539 aarch64_sys_uname = 160,
540 aarch64_sys_sethostname = 161,
541 aarch64_sys_setdomainname = 162,
542 aarch64_sys_getrlimit = 163,
543 aarch64_sys_setrlimit = 164,
544 aarch64_sys_getrusage = 165,
545 aarch64_sys_umask = 166,
546 aarch64_sys_prctl = 167,
547 aarch64_sys_getcpu = 168,
548 aarch64_sys_gettimeofday = 169,
549 aarch64_sys_settimeofday = 170,
550 aarch64_sys_adjtimex = 171,
551 aarch64_sys_getpid = 172,
552 aarch64_sys_getppid = 173,
553 aarch64_sys_getuid = 174,
554 aarch64_sys_geteuid = 175,
555 aarch64_sys_getgid = 176,
556 aarch64_sys_getegid = 177,
557 aarch64_sys_gettid = 178,
558 aarch64_sys_sysinfo = 179,
559 aarch64_sys_mq_open = 180,
560 aarch64_sys_mq_unlink = 181,
561 aarch64_sys_mq_timedsend = 182,
562 aarch64_sys_mq_timedreceive = 183,
563 aarch64_sys_mq_notify = 184,
564 aarch64_sys_mq_getsetattr = 185,
565 aarch64_sys_msgget = 186,
566 aarch64_sys_msgctl = 187,
567 aarch64_sys_msgrcv = 188,
568 aarch64_sys_msgsnd = 189,
569 aarch64_sys_semget = 190,
570 aarch64_sys_semctl = 191,
571 aarch64_sys_semtimedop = 192,
572 aarch64_sys_semop = 193,
573 aarch64_sys_shmget = 194,
574 aarch64_sys_shmctl = 195,
575 aarch64_sys_shmat = 196,
576 aarch64_sys_shmdt = 197,
577 aarch64_sys_socket = 198,
578 aarch64_sys_socketpair = 199,
579 aarch64_sys_bind = 200,
580 aarch64_sys_listen = 201,
581 aarch64_sys_accept = 202,
582 aarch64_sys_connect = 203,
583 aarch64_sys_getsockname = 204,
584 aarch64_sys_getpeername = 205,
585 aarch64_sys_sendto = 206,
586 aarch64_sys_recvfrom = 207,
587 aarch64_sys_setsockopt = 208,
588 aarch64_sys_getsockopt = 209,
589 aarch64_sys_shutdown = 210,
590 aarch64_sys_sendmsg = 211,
591 aarch64_sys_recvmsg = 212,
592 aarch64_sys_readahead = 213,
593 aarch64_sys_brk = 214,
594 aarch64_sys_munmap = 215,
595 aarch64_sys_mremap = 216,
596 aarch64_sys_add_key = 217,
597 aarch64_sys_request_key = 218,
598 aarch64_sys_keyctl = 219,
599 aarch64_sys_clone = 220,
600 aarch64_sys_execve = 221,
601 aarch64_sys_mmap = 222,
602 aarch64_sys_fadvise64 = 223,
603 aarch64_sys_swapon = 224,
604 aarch64_sys_swapoff = 225,
605 aarch64_sys_mprotect = 226,
606 aarch64_sys_msync = 227,
607 aarch64_sys_mlock = 228,
608 aarch64_sys_munlock = 229,
609 aarch64_sys_mlockall = 230,
610 aarch64_sys_munlockall = 231,
611 aarch64_sys_mincore = 232,
612 aarch64_sys_madvise = 233,
613 aarch64_sys_remap_file_pages = 234,
614 aarch64_sys_mbind = 235,
615 aarch64_sys_get_mempolicy = 236,
616 aarch64_sys_set_mempolicy = 237,
617 aarch64_sys_migrate_pages = 238,
618 aarch64_sys_move_pages = 239,
619 aarch64_sys_rt_tgsigqueueinfo = 240,
620 aarch64_sys_perf_event_open = 241,
621 aarch64_sys_accept4 = 242,
622 aarch64_sys_recvmmsg = 243,
623 aarch64_sys_wait4 = 260,
624 aarch64_sys_prlimit64 = 261,
625 aarch64_sys_fanotify_init = 262,
626 aarch64_sys_fanotify_mark = 263,
627 aarch64_sys_name_to_handle_at = 264,
628 aarch64_sys_open_by_handle_at = 265,
629 aarch64_sys_clock_adjtime = 266,
630 aarch64_sys_syncfs = 267,
631 aarch64_sys_setns = 268,
632 aarch64_sys_sendmmsg = 269,
633 aarch64_sys_process_vm_readv = 270,
634 aarch64_sys_process_vm_writev = 271,
635 aarch64_sys_kcmp = 272,
636 aarch64_sys_finit_module = 273,
637 aarch64_sys_sched_setattr = 274,
638 aarch64_sys_sched_getattr = 275,
641 /* aarch64_canonicalize_syscall maps syscall ids from the native AArch64
642 linux set of syscall ids into a canonical set of syscall ids used by
645 static enum gdb_syscall
646 aarch64_canonicalize_syscall (enum aarch64_syscall syscall_number)
648 #define SYSCALL_MAP(SYSCALL) case aarch64_sys_##SYSCALL: \
649 return gdb_sys_##SYSCALL
651 #define UNSUPPORTED_SYSCALL_MAP(SYSCALL) case aarch64_sys_##SYSCALL: \
652 return gdb_sys_no_syscall
654 switch (syscall_number)
656 SYSCALL_MAP (io_setup);
657 SYSCALL_MAP (io_destroy);
658 SYSCALL_MAP (io_submit);
659 SYSCALL_MAP (io_cancel);
660 SYSCALL_MAP (io_getevents);
662 SYSCALL_MAP (setxattr);
663 SYSCALL_MAP (lsetxattr);
664 SYSCALL_MAP (fsetxattr);
665 SYSCALL_MAP (getxattr);
666 SYSCALL_MAP (lgetxattr);
667 SYSCALL_MAP (fgetxattr);
668 SYSCALL_MAP (listxattr);
669 SYSCALL_MAP (llistxattr);
670 SYSCALL_MAP (flistxattr);
671 SYSCALL_MAP (removexattr);
672 SYSCALL_MAP (lremovexattr);
673 SYSCALL_MAP (fremovexattr);
674 SYSCALL_MAP (getcwd);
675 SYSCALL_MAP (lookup_dcookie);
676 SYSCALL_MAP (eventfd2);
677 SYSCALL_MAP (epoll_create1);
678 SYSCALL_MAP (epoll_ctl);
679 SYSCALL_MAP (epoll_pwait);
683 SYSCALL_MAP (inotify_init1);
684 SYSCALL_MAP (inotify_add_watch);
685 SYSCALL_MAP (inotify_rm_watch);
687 SYSCALL_MAP (ioprio_set);
688 SYSCALL_MAP (ioprio_get);
690 SYSCALL_MAP (mknodat);
691 SYSCALL_MAP (mkdirat);
692 SYSCALL_MAP (unlinkat);
693 SYSCALL_MAP (symlinkat);
694 SYSCALL_MAP (linkat);
695 SYSCALL_MAP (renameat);
696 UNSUPPORTED_SYSCALL_MAP (umount2);
698 SYSCALL_MAP (pivot_root);
699 SYSCALL_MAP (nfsservctl);
700 SYSCALL_MAP (statfs);
701 SYSCALL_MAP (truncate);
702 SYSCALL_MAP (ftruncate);
703 SYSCALL_MAP (fallocate);
704 SYSCALL_MAP (faccessat);
705 SYSCALL_MAP (fchdir);
706 SYSCALL_MAP (chroot);
707 SYSCALL_MAP (fchmod);
708 SYSCALL_MAP (fchmodat);
709 SYSCALL_MAP (fchownat);
710 SYSCALL_MAP (fchown);
711 SYSCALL_MAP (openat);
713 SYSCALL_MAP (vhangup);
715 SYSCALL_MAP (quotactl);
716 SYSCALL_MAP (getdents64);
721 SYSCALL_MAP (writev);
722 SYSCALL_MAP (pread64);
723 SYSCALL_MAP (pwrite64);
724 UNSUPPORTED_SYSCALL_MAP (preadv);
725 UNSUPPORTED_SYSCALL_MAP (pwritev);
726 SYSCALL_MAP (sendfile);
727 SYSCALL_MAP (pselect6);
729 UNSUPPORTED_SYSCALL_MAP (signalfd4);
730 SYSCALL_MAP (vmsplice);
731 SYSCALL_MAP (splice);
733 SYSCALL_MAP (readlinkat);
734 SYSCALL_MAP (newfstatat);
739 SYSCALL_MAP (fdatasync);
740 SYSCALL_MAP (sync_file_range);
741 UNSUPPORTED_SYSCALL_MAP (timerfd_create);
742 UNSUPPORTED_SYSCALL_MAP (timerfd_settime);
743 UNSUPPORTED_SYSCALL_MAP (timerfd_gettime);
744 UNSUPPORTED_SYSCALL_MAP (utimensat);
746 SYSCALL_MAP (capget);
747 SYSCALL_MAP (capset);
748 SYSCALL_MAP (personality);
750 SYSCALL_MAP (exit_group);
751 SYSCALL_MAP (waitid);
752 SYSCALL_MAP (set_tid_address);
753 SYSCALL_MAP (unshare);
755 SYSCALL_MAP (set_robust_list);
756 SYSCALL_MAP (get_robust_list);
757 SYSCALL_MAP (nanosleep);
759 SYSCALL_MAP (getitimer);
760 SYSCALL_MAP (setitimer);
761 SYSCALL_MAP (kexec_load);
762 SYSCALL_MAP (init_module);
763 SYSCALL_MAP (delete_module);
764 SYSCALL_MAP (timer_create);
765 SYSCALL_MAP (timer_settime);
766 SYSCALL_MAP (timer_gettime);
767 SYSCALL_MAP (timer_getoverrun);
768 SYSCALL_MAP (timer_delete);
769 SYSCALL_MAP (clock_settime);
770 SYSCALL_MAP (clock_gettime);
771 SYSCALL_MAP (clock_getres);
772 SYSCALL_MAP (clock_nanosleep);
773 SYSCALL_MAP (syslog);
774 SYSCALL_MAP (ptrace);
775 SYSCALL_MAP (sched_setparam);
776 SYSCALL_MAP (sched_setscheduler);
777 SYSCALL_MAP (sched_getscheduler);
778 SYSCALL_MAP (sched_getparam);
779 SYSCALL_MAP (sched_setaffinity);
780 SYSCALL_MAP (sched_getaffinity);
781 SYSCALL_MAP (sched_yield);
782 SYSCALL_MAP (sched_get_priority_max);
783 SYSCALL_MAP (sched_get_priority_min);
784 SYSCALL_MAP (sched_rr_get_interval);
787 SYSCALL_MAP (tgkill);
788 SYSCALL_MAP (sigaltstack);
789 SYSCALL_MAP (rt_sigsuspend);
790 SYSCALL_MAP (rt_sigaction);
791 SYSCALL_MAP (rt_sigprocmask);
792 SYSCALL_MAP (rt_sigpending);
793 SYSCALL_MAP (rt_sigtimedwait);
794 SYSCALL_MAP (rt_sigqueueinfo);
795 SYSCALL_MAP (rt_sigreturn);
796 SYSCALL_MAP (setpriority);
797 SYSCALL_MAP (getpriority);
798 SYSCALL_MAP (reboot);
799 SYSCALL_MAP (setregid);
800 SYSCALL_MAP (setgid);
801 SYSCALL_MAP (setreuid);
802 SYSCALL_MAP (setuid);
803 SYSCALL_MAP (setresuid);
804 SYSCALL_MAP (getresuid);
805 SYSCALL_MAP (setresgid);
806 SYSCALL_MAP (getresgid);
807 SYSCALL_MAP (setfsuid);
808 SYSCALL_MAP (setfsgid);
810 SYSCALL_MAP (setpgid);
811 SYSCALL_MAP (getpgid);
812 SYSCALL_MAP (getsid);
813 SYSCALL_MAP (setsid);
814 SYSCALL_MAP (getgroups);
815 SYSCALL_MAP (setgroups);
817 SYSCALL_MAP (sethostname);
818 SYSCALL_MAP (setdomainname);
819 SYSCALL_MAP (getrlimit);
820 SYSCALL_MAP (setrlimit);
821 SYSCALL_MAP (getrusage);
824 SYSCALL_MAP (getcpu);
825 SYSCALL_MAP (gettimeofday);
826 SYSCALL_MAP (settimeofday);
827 SYSCALL_MAP (adjtimex);
828 SYSCALL_MAP (getpid);
829 SYSCALL_MAP (getppid);
830 SYSCALL_MAP (getuid);
831 SYSCALL_MAP (geteuid);
832 SYSCALL_MAP (getgid);
833 SYSCALL_MAP (getegid);
834 SYSCALL_MAP (gettid);
835 SYSCALL_MAP (sysinfo);
836 SYSCALL_MAP (mq_open);
837 SYSCALL_MAP (mq_unlink);
838 SYSCALL_MAP (mq_timedsend);
839 SYSCALL_MAP (mq_timedreceive);
840 SYSCALL_MAP (mq_notify);
841 SYSCALL_MAP (mq_getsetattr);
842 SYSCALL_MAP (msgget);
843 SYSCALL_MAP (msgctl);
844 SYSCALL_MAP (msgrcv);
845 SYSCALL_MAP (msgsnd);
846 SYSCALL_MAP (semget);
847 SYSCALL_MAP (semctl);
848 SYSCALL_MAP (semtimedop);
850 SYSCALL_MAP (shmget);
851 SYSCALL_MAP (shmctl);
854 SYSCALL_MAP (socket);
855 SYSCALL_MAP (socketpair);
857 SYSCALL_MAP (listen);
858 SYSCALL_MAP (accept);
859 SYSCALL_MAP (connect);
860 SYSCALL_MAP (getsockname);
861 SYSCALL_MAP (getpeername);
862 SYSCALL_MAP (sendto);
863 SYSCALL_MAP (recvfrom);
864 SYSCALL_MAP (setsockopt);
865 SYSCALL_MAP (getsockopt);
866 SYSCALL_MAP (shutdown);
867 SYSCALL_MAP (sendmsg);
868 SYSCALL_MAP (recvmsg);
869 SYSCALL_MAP (readahead);
871 SYSCALL_MAP (munmap);
872 SYSCALL_MAP (mremap);
873 SYSCALL_MAP (add_key);
874 SYSCALL_MAP (request_key);
875 SYSCALL_MAP (keyctl);
877 SYSCALL_MAP (execve);
879 case aarch64_sys_mmap:
880 return gdb_sys_mmap2;
882 SYSCALL_MAP (fadvise64);
883 SYSCALL_MAP (swapon);
884 SYSCALL_MAP (swapoff);
885 SYSCALL_MAP (mprotect);
888 SYSCALL_MAP (munlock);
889 SYSCALL_MAP (mlockall);
890 SYSCALL_MAP (munlockall);
891 SYSCALL_MAP (mincore);
892 SYSCALL_MAP (madvise);
893 SYSCALL_MAP (remap_file_pages);
895 SYSCALL_MAP (get_mempolicy);
896 SYSCALL_MAP (set_mempolicy);
897 SYSCALL_MAP (migrate_pages);
898 SYSCALL_MAP (move_pages);
899 UNSUPPORTED_SYSCALL_MAP (rt_tgsigqueueinfo);
900 UNSUPPORTED_SYSCALL_MAP (perf_event_open);
901 UNSUPPORTED_SYSCALL_MAP (accept4);
902 UNSUPPORTED_SYSCALL_MAP (recvmmsg);
906 UNSUPPORTED_SYSCALL_MAP (prlimit64);
907 UNSUPPORTED_SYSCALL_MAP (fanotify_init);
908 UNSUPPORTED_SYSCALL_MAP (fanotify_mark);
909 UNSUPPORTED_SYSCALL_MAP (name_to_handle_at);
910 UNSUPPORTED_SYSCALL_MAP (open_by_handle_at);
911 UNSUPPORTED_SYSCALL_MAP (clock_adjtime);
912 UNSUPPORTED_SYSCALL_MAP (syncfs);
913 UNSUPPORTED_SYSCALL_MAP (setns);
914 UNSUPPORTED_SYSCALL_MAP (sendmmsg);
915 UNSUPPORTED_SYSCALL_MAP (process_vm_readv);
916 UNSUPPORTED_SYSCALL_MAP (process_vm_writev);
917 UNSUPPORTED_SYSCALL_MAP (kcmp);
918 UNSUPPORTED_SYSCALL_MAP (finit_module);
919 UNSUPPORTED_SYSCALL_MAP (sched_setattr);
920 UNSUPPORTED_SYSCALL_MAP (sched_getattr);
922 return gdb_sys_no_syscall;
926 /* Record all registers but PC register for process-record. */
929 aarch64_all_but_pc_registers_record (struct regcache *regcache)
933 for (i = AARCH64_X0_REGNUM; i < AARCH64_PC_REGNUM; i++)
934 if (record_full_arch_list_add_reg (regcache, i))
937 if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
943 /* Handler for aarch64 system call instruction recording. */
946 aarch64_linux_syscall_record (struct regcache *regcache,
947 unsigned long svc_number)
950 enum gdb_syscall syscall_gdb;
953 aarch64_canonicalize_syscall ((enum aarch64_syscall) svc_number);
957 printf_unfiltered (_("Process record and replay target doesn't "
958 "support syscall number %s\n"),
959 plongest (svc_number));
963 if (syscall_gdb == gdb_sys_sigreturn
964 || syscall_gdb == gdb_sys_rt_sigreturn)
966 if (aarch64_all_but_pc_registers_record (regcache))
971 ret = record_linux_system_call (syscall_gdb, regcache,
972 &aarch64_linux_record_tdep);
976 /* Record the return value of the system call. */
977 if (record_full_arch_list_add_reg (regcache, AARCH64_X0_REGNUM))
980 if (record_full_arch_list_add_reg (regcache, AARCH64_LR_REGNUM))
983 if (record_full_arch_list_add_reg (regcache, AARCH64_CPSR_REGNUM))
990 aarch64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
992 static const char *const stap_integer_prefixes[] = { "#", "", NULL };
993 static const char *const stap_register_prefixes[] = { "", NULL };
994 static const char *const stap_register_indirection_prefixes[] = { "[",
996 static const char *const stap_register_indirection_suffixes[] = { "]",
998 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
1000 tdep->lowest_pc = 0x8000;
1002 linux_init_abi (info, gdbarch);
1004 set_solib_svr4_fetch_link_map_offsets (gdbarch,
1005 svr4_lp64_fetch_link_map_offsets);
1007 /* Enable TLS support. */
1008 set_gdbarch_fetch_tls_load_module_address (gdbarch,
1009 svr4_fetch_objfile_link_map);
1011 /* Shared library handling. */
1012 set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
1013 set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
1015 tramp_frame_prepend_unwinder (gdbarch, &aarch64_linux_rt_sigframe);
1017 /* Enable longjmp. */
1020 set_gdbarch_iterate_over_regset_sections
1021 (gdbarch, aarch64_linux_iterate_over_regset_sections);
1023 /* SystemTap related. */
1024 set_gdbarch_stap_integer_prefixes (gdbarch, stap_integer_prefixes);
1025 set_gdbarch_stap_register_prefixes (gdbarch, stap_register_prefixes);
1026 set_gdbarch_stap_register_indirection_prefixes (gdbarch,
1027 stap_register_indirection_prefixes);
1028 set_gdbarch_stap_register_indirection_suffixes (gdbarch,
1029 stap_register_indirection_suffixes);
1030 set_gdbarch_stap_is_single_operand (gdbarch, aarch64_stap_is_single_operand);
1031 set_gdbarch_stap_parse_special_token (gdbarch,
1032 aarch64_stap_parse_special_token);
1034 /* Reversible debugging, process record. */
1035 set_gdbarch_process_record (gdbarch, aarch64_process_record);
1036 /* Syscall record. */
1037 tdep->aarch64_syscall_record = aarch64_linux_syscall_record;
1039 /* Initialize the aarch64_linux_record_tdep. */
1040 /* These values are the size of the type that will be used in a system
1041 call. They are obtained from Linux Kernel source. */
1042 aarch64_linux_record_tdep.size_pointer
1043 = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
1044 aarch64_linux_record_tdep.size__old_kernel_stat = 32;
1045 aarch64_linux_record_tdep.size_tms = 32;
1046 aarch64_linux_record_tdep.size_loff_t = 8;
1047 aarch64_linux_record_tdep.size_flock = 32;
1048 aarch64_linux_record_tdep.size_oldold_utsname = 45;
1049 aarch64_linux_record_tdep.size_ustat = 32;
1050 aarch64_linux_record_tdep.size_old_sigaction = 32;
1051 aarch64_linux_record_tdep.size_old_sigset_t = 8;
1052 aarch64_linux_record_tdep.size_rlimit = 16;
1053 aarch64_linux_record_tdep.size_rusage = 144;
1054 aarch64_linux_record_tdep.size_timeval = 16;
1055 aarch64_linux_record_tdep.size_timezone = 8;
1056 aarch64_linux_record_tdep.size_old_gid_t = 2;
1057 aarch64_linux_record_tdep.size_old_uid_t = 2;
1058 aarch64_linux_record_tdep.size_fd_set = 128;
1059 aarch64_linux_record_tdep.size_old_dirent = 280;
1060 aarch64_linux_record_tdep.size_statfs = 120;
1061 aarch64_linux_record_tdep.size_statfs64 = 120;
1062 aarch64_linux_record_tdep.size_sockaddr = 16;
1063 aarch64_linux_record_tdep.size_int
1064 = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
1065 aarch64_linux_record_tdep.size_long
1066 = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
1067 aarch64_linux_record_tdep.size_ulong
1068 = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
1069 aarch64_linux_record_tdep.size_msghdr = 56;
1070 aarch64_linux_record_tdep.size_itimerval = 32;
1071 aarch64_linux_record_tdep.size_stat = 144;
1072 aarch64_linux_record_tdep.size_old_utsname = 325;
1073 aarch64_linux_record_tdep.size_sysinfo = 112;
1074 aarch64_linux_record_tdep.size_msqid_ds = 120;
1075 aarch64_linux_record_tdep.size_shmid_ds = 112;
1076 aarch64_linux_record_tdep.size_new_utsname = 390;
1077 aarch64_linux_record_tdep.size_timex = 208;
1078 aarch64_linux_record_tdep.size_mem_dqinfo = 24;
1079 aarch64_linux_record_tdep.size_if_dqblk = 72;
1080 aarch64_linux_record_tdep.size_fs_quota_stat = 80;
1081 aarch64_linux_record_tdep.size_timespec = 16;
1082 aarch64_linux_record_tdep.size_pollfd = 8;
1083 aarch64_linux_record_tdep.size_NFS_FHSIZE = 32;
1084 aarch64_linux_record_tdep.size_knfsd_fh = 132;
1085 aarch64_linux_record_tdep.size_TASK_COMM_LEN = 16;
1086 aarch64_linux_record_tdep.size_sigaction = 32;
1087 aarch64_linux_record_tdep.size_sigset_t = 8;
1088 aarch64_linux_record_tdep.size_siginfo_t = 128;
1089 aarch64_linux_record_tdep.size_cap_user_data_t = 8;
1090 aarch64_linux_record_tdep.size_stack_t = 24;
1091 aarch64_linux_record_tdep.size_off_t = 8;
1092 aarch64_linux_record_tdep.size_stat64 = 144;
1093 aarch64_linux_record_tdep.size_gid_t = 4;
1094 aarch64_linux_record_tdep.size_uid_t = 4;
1095 aarch64_linux_record_tdep.size_PAGE_SIZE = 4096;
1096 aarch64_linux_record_tdep.size_flock64 = 32;
1097 aarch64_linux_record_tdep.size_user_desc = 16;
1098 aarch64_linux_record_tdep.size_io_event = 32;
1099 aarch64_linux_record_tdep.size_iocb = 64;
1100 aarch64_linux_record_tdep.size_epoll_event = 12;
1101 aarch64_linux_record_tdep.size_itimerspec = 32;
1102 aarch64_linux_record_tdep.size_mq_attr = 64;
1103 aarch64_linux_record_tdep.size_termios = 36;
1104 aarch64_linux_record_tdep.size_termios2 = 44;
1105 aarch64_linux_record_tdep.size_pid_t = 4;
1106 aarch64_linux_record_tdep.size_winsize = 8;
1107 aarch64_linux_record_tdep.size_serial_struct = 72;
1108 aarch64_linux_record_tdep.size_serial_icounter_struct = 80;
1109 aarch64_linux_record_tdep.size_hayes_esp_config = 12;
1110 aarch64_linux_record_tdep.size_size_t = 8;
1111 aarch64_linux_record_tdep.size_iovec = 16;
1112 aarch64_linux_record_tdep.size_time_t = 8;
1114 /* These values are the second argument of system call "sys_ioctl".
1115 They are obtained from Linux Kernel source. */
1116 aarch64_linux_record_tdep.ioctl_TCGETS = 0x5401;
1117 aarch64_linux_record_tdep.ioctl_TCSETS = 0x5402;
1118 aarch64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
1119 aarch64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
1120 aarch64_linux_record_tdep.ioctl_TCGETA = 0x5405;
1121 aarch64_linux_record_tdep.ioctl_TCSETA = 0x5406;
1122 aarch64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
1123 aarch64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
1124 aarch64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
1125 aarch64_linux_record_tdep.ioctl_TCXONC = 0x540a;
1126 aarch64_linux_record_tdep.ioctl_TCFLSH = 0x540b;
1127 aarch64_linux_record_tdep.ioctl_TIOCEXCL = 0x540c;
1128 aarch64_linux_record_tdep.ioctl_TIOCNXCL = 0x540d;
1129 aarch64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e;
1130 aarch64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f;
1131 aarch64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
1132 aarch64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
1133 aarch64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
1134 aarch64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
1135 aarch64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
1136 aarch64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
1137 aarch64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
1138 aarch64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
1139 aarch64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
1140 aarch64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
1141 aarch64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a;
1142 aarch64_linux_record_tdep.ioctl_FIONREAD = 0x541b;
1143 aarch64_linux_record_tdep.ioctl_TIOCINQ = 0x541b;
1144 aarch64_linux_record_tdep.ioctl_TIOCLINUX = 0x541c;
1145 aarch64_linux_record_tdep.ioctl_TIOCCONS = 0x541d;
1146 aarch64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e;
1147 aarch64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f;
1148 aarch64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
1149 aarch64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
1150 aarch64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
1151 aarch64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
1152 aarch64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
1153 aarch64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
1154 aarch64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
1155 aarch64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
1156 aarch64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
1157 aarch64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
1158 aarch64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
1159 aarch64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
1160 aarch64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
1161 aarch64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
1162 aarch64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
1163 aarch64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
1164 aarch64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
1165 aarch64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
1166 aarch64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
1167 aarch64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
1168 aarch64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
1169 aarch64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
1170 aarch64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
1171 aarch64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
1172 aarch64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
1173 aarch64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
1174 aarch64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a;
1175 aarch64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b;
1176 aarch64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c;
1177 aarch64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d;
1178 aarch64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e;
1179 aarch64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f;
1180 aarch64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
1182 /* These values are the second argument of system call "sys_fcntl"
1183 and "sys_fcntl64". They are obtained from Linux Kernel source. */
1184 aarch64_linux_record_tdep.fcntl_F_GETLK = 5;
1185 aarch64_linux_record_tdep.fcntl_F_GETLK64 = 12;
1186 aarch64_linux_record_tdep.fcntl_F_SETLK64 = 13;
1187 aarch64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
1189 /* The AArch64 syscall calling convention: reg x0-x6 for arguments,
1190 reg x8 for syscall number and return value in reg x0. */
1191 aarch64_linux_record_tdep.arg1 = AARCH64_X0_REGNUM + 0;
1192 aarch64_linux_record_tdep.arg2 = AARCH64_X0_REGNUM + 1;
1193 aarch64_linux_record_tdep.arg3 = AARCH64_X0_REGNUM + 2;
1194 aarch64_linux_record_tdep.arg4 = AARCH64_X0_REGNUM + 3;
1195 aarch64_linux_record_tdep.arg5 = AARCH64_X0_REGNUM + 4;
1196 aarch64_linux_record_tdep.arg6 = AARCH64_X0_REGNUM + 5;
1197 aarch64_linux_record_tdep.arg7 = AARCH64_X0_REGNUM + 6;
1199 /* `catch syscall' */
1200 set_xml_syscall_file_name (gdbarch, "syscalls/aarch64-linux.xml");
1201 set_gdbarch_get_syscall_number (gdbarch, aarch64_linux_get_syscall_number);
1203 /* Displaced stepping. */
1204 set_gdbarch_max_insn_length (gdbarch, 4 * DISPLACED_MODIFIED_INSNS);
1205 set_gdbarch_displaced_step_copy_insn (gdbarch,
1206 aarch64_displaced_step_copy_insn);
1207 set_gdbarch_displaced_step_fixup (gdbarch, aarch64_displaced_step_fixup);
1208 set_gdbarch_displaced_step_free_closure (gdbarch,
1209 simple_displaced_step_free_closure);
1210 set_gdbarch_displaced_step_location (gdbarch, linux_displaced_step_location);
1211 set_gdbarch_displaced_step_hw_singlestep (gdbarch,
1212 aarch64_displaced_step_hw_singlestep);
1215 /* Provide a prototype to silence -Wmissing-prototypes. */
1216 extern initialize_file_ftype _initialize_aarch64_linux_tdep;
1219 _initialize_aarch64_linux_tdep (void)
1221 gdbarch_register_osabi (bfd_arch_aarch64, 0, GDB_OSABI_LINUX,
1222 aarch64_linux_init_abi);