gdb/amd64-linux-tdep.c

   1 /* Target-dependent code for GNU/Linux x86-64.
   2
   3    Copyright (C) 2001, 2003-2012 Free Software Foundation, Inc.
   4    Contributed by Jiri Smid, SuSE Labs.
   5
   6    This file is part of GDB.
   7
   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.
  12
  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.
  17
  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/>.  */
  20
  21 #include "defs.h"
  22 #include "arch-utils.h"
  23 #include "frame.h"
  24 #include "gdbcore.h"
  25 #include "regcache.h"
  26 #include "osabi.h"
  27 #include "symtab.h"
  28 #include "gdbtypes.h"
  29 #include "reggroups.h"
  30 #include "regset.h"
  31 #include "amd64-linux-tdep.h"
  32 #include "i386-linux-tdep.h"
  33 #include "linux-tdep.h"
  34 #include "i386-xstate.h"
  35
  36 #include "gdb_string.h"
  37
  38 #include "amd64-tdep.h"
  39 #include "solib-svr4.h"
  40 #include "xml-syscall.h"
  41 #include "glibc-tdep.h"
  42
  43 #include "features/i386/amd64-linux.c"
  44 #include "features/i386/amd64-avx-linux.c"
  45 #include "features/i386/x32-linux.c"
  46 #include "features/i386/x32-avx-linux.c"
  47
  48 /* The syscall's XML filename for i386.  */
  49 #define XML_SYSCALL_FILENAME_AMD64 "syscalls/amd64-linux.xml"
  50
  51 #include "record.h"
  52 #include "linux-record.h"
  53
  54 /* Supported register note sections.  */
  55 static struct core_regset_section amd64_linux_regset_sections[] =
  56 {
  57   { ".reg", 27 * 8, "general-purpose" },
  58   { ".reg2", 512, "floating-point" },
  59   { ".reg-xstate", I386_XSTATE_MAX_SIZE, "XSAVE extended state" },
  60   { NULL, 0 }
  61 };
  62
  63 /* Mapping between the general-purpose registers in `struct user'
  64    format and GDB's register cache layout.  */
  65
  66 /* From <sys/reg.h>.  */
  67 int amd64_linux_gregset_reg_offset[] =
  68 {
  69   10 * 8,                       /* %rax */
  70   5 * 8,                        /* %rbx */
  71   11 * 8,                       /* %rcx */
  72   12 * 8,                       /* %rdx */
  73   13 * 8,                       /* %rsi */
  74   14 * 8,                       /* %rdi */
  75   4 * 8,                        /* %rbp */
  76   19 * 8,                       /* %rsp */
  77   9 * 8,                        /* %r8 ...  */
  78   8 * 8,
  79   7 * 8,
  80   6 * 8,
  81   3 * 8,
  82   2 * 8,
  83   1 * 8,
  84   0 * 8,                        /* ... %r15 */
  85   16 * 8,                       /* %rip */
  86   18 * 8,                       /* %eflags */
  87   17 * 8,                       /* %cs */
  88   20 * 8,                       /* %ss */
  89   23 * 8,                       /* %ds */
  90   24 * 8,                       /* %es */
  91   25 * 8,                       /* %fs */
  92   26 * 8,                       /* %gs */
  93   -1, -1, -1, -1, -1, -1, -1, -1,
  94   -1, -1, -1, -1, -1, -1, -1, -1,
  95   -1, -1, -1, -1, -1, -1, -1, -1,
  96   -1, -1, -1, -1, -1, -1, -1, -1, -1,
  97   -1, -1, -1, -1, -1, -1, -1, -1,
  98   -1, -1, -1, -1, -1, -1, -1, -1,
  99   15 * 8                        /* "orig_rax" */
 100 };
 101 \f
 102
 103 /* Support for signal handlers.  */
 104
 105 #define LINUX_SIGTRAMP_INSN0    0x48    /* mov $NNNNNNNN, %rax */
 106 #define LINUX_SIGTRAMP_OFFSET0  0
 107 #define LINUX_SIGTRAMP_INSN1    0x0f    /* syscall */
 108 #define LINUX_SIGTRAMP_OFFSET1  7
 109
 110 static const gdb_byte amd64_linux_sigtramp_code[] =
 111 {
 112   /* mov $__NR_rt_sigreturn, %rax */
 113   LINUX_SIGTRAMP_INSN0, 0xc7, 0xc0, 0x0f, 0x00, 0x00, 0x00,
 114   /* syscall */
 115   LINUX_SIGTRAMP_INSN1, 0x05
 116 };
 117
 118 static const gdb_byte amd64_x32_linux_sigtramp_code[] =
 119 {
 120   /* mov $__NR_rt_sigreturn, %rax.  */
 121   LINUX_SIGTRAMP_INSN0, 0xc7, 0xc0, 0x01, 0x02, 0x00, 0x40,
 122   /* syscall */
 123   LINUX_SIGTRAMP_INSN1, 0x05
 124 };
 125
 126 #define LINUX_SIGTRAMP_LEN (sizeof amd64_linux_sigtramp_code)
 127
 128 /* If PC is in a sigtramp routine, return the address of the start of
 129    the routine.  Otherwise, return 0.  */
 130
 131 static CORE_ADDR
 132 amd64_linux_sigtramp_start (struct frame_info *this_frame)
 133 {
 134   struct gdbarch *gdbarch;
 135   const gdb_byte *sigtramp_code;
 136   CORE_ADDR pc = get_frame_pc (this_frame);
 137   gdb_byte buf[LINUX_SIGTRAMP_LEN];
 138
 139   /* We only recognize a signal trampoline if PC is at the start of
 140      one of the two instructions.  We optimize for finding the PC at
 141      the start, as will be the case when the trampoline is not the
 142      first frame on the stack.  We assume that in the case where the
 143      PC is not at the start of the instruction sequence, there will be
 144      a few trailing readable bytes on the stack.  */
 145
 146   if (!safe_frame_unwind_memory (this_frame, pc, buf, sizeof buf))
 147     return 0;
 148
 149   if (buf[0] != LINUX_SIGTRAMP_INSN0)
 150     {
 151       if (buf[0] != LINUX_SIGTRAMP_INSN1)
 152         return 0;
 153
 154       pc -= LINUX_SIGTRAMP_OFFSET1;
 155       if (!safe_frame_unwind_memory (this_frame, pc, buf, sizeof buf))
 156         return 0;
 157     }
 158
 159   gdbarch = get_frame_arch (this_frame);
 160   if (gdbarch_ptr_bit (gdbarch) == 32)
 161     sigtramp_code = amd64_x32_linux_sigtramp_code;
 162   else
 163     sigtramp_code = amd64_linux_sigtramp_code;
 164   if (memcmp (buf, sigtramp_code, LINUX_SIGTRAMP_LEN) != 0)
 165     return 0;
 166
 167   return pc;
 168 }
 169
 170 /* Return whether THIS_FRAME corresponds to a GNU/Linux sigtramp
 171    routine.  */
 172
 173 static int
 174 amd64_linux_sigtramp_p (struct frame_info *this_frame)
 175 {
 176   CORE_ADDR pc = get_frame_pc (this_frame);
 177   const char *name;
 178
 179   find_pc_partial_function (pc, &name, NULL, NULL);
 180
 181   /* If we have NAME, we can optimize the search.  The trampoline is
 182      named __restore_rt.  However, it isn't dynamically exported from
 183      the shared C library, so the trampoline may appear to be part of
 184      the preceding function.  This should always be sigaction,
 185      __sigaction, or __libc_sigaction (all aliases to the same
 186      function).  */
 187   if (name == NULL || strstr (name, "sigaction") != NULL)
 188     return (amd64_linux_sigtramp_start (this_frame) != 0);
 189
 190   return (strcmp ("__restore_rt", name) == 0);
 191 }
 192
 193 /* Offset to struct sigcontext in ucontext, from <asm/ucontext.h>.  */
 194 #define AMD64_LINUX_UCONTEXT_SIGCONTEXT_OFFSET 40
 195
 196 /* Assuming THIS_FRAME is a GNU/Linux sigtramp routine, return the
 197    address of the associated sigcontext structure.  */
 198
 199 static CORE_ADDR
 200 amd64_linux_sigcontext_addr (struct frame_info *this_frame)
 201 {
 202   struct gdbarch *gdbarch = get_frame_arch (this_frame);
 203   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
 204   CORE_ADDR sp;
 205   gdb_byte buf[8];
 206
 207   get_frame_register (this_frame, AMD64_RSP_REGNUM, buf);
 208   sp = extract_unsigned_integer (buf, 8, byte_order);
 209
 210   /* The sigcontext structure is part of the user context.  A pointer
 211      to the user context is passed as the third argument to the signal
 212      handler, i.e. in %rdx.  Unfortunately %rdx isn't preserved across
 213      function calls so we can't use it.  Fortunately the user context
 214      is part of the signal frame and the unwound %rsp directly points
 215      at it.  */
 216   return sp + AMD64_LINUX_UCONTEXT_SIGCONTEXT_OFFSET;
 217 }
 218 \f
 219
 220 static LONGEST
 221 amd64_linux_get_syscall_number (struct gdbarch *gdbarch,
 222                                 ptid_t ptid)
 223 {
 224   struct regcache *regcache = get_thread_regcache (ptid);
 225   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
 226   /* The content of a register.  */
 227   gdb_byte buf[8];
 228   /* The result.  */
 229   LONGEST ret;
 230
 231   /* Getting the system call number from the register.
 232      When dealing with x86_64 architecture, this information
 233      is stored at %rax register.  */
 234   regcache_cooked_read (regcache, AMD64_LINUX_ORIG_RAX_REGNUM, buf);
 235
 236   ret = extract_signed_integer (buf, 8, byte_order);
 237
 238   return ret;
 239 }
 240
 241
 242 /* From <asm/sigcontext.h>.  */
 243 static int amd64_linux_sc_reg_offset[] =
 244 {
 245   13 * 8,                       /* %rax */
 246   11 * 8,                       /* %rbx */
 247   14 * 8,                       /* %rcx */
 248   12 * 8,                       /* %rdx */
 249   9 * 8,                        /* %rsi */
 250   8 * 8,                        /* %rdi */
 251   10 * 8,                       /* %rbp */
 252   15 * 8,                       /* %rsp */
 253   0 * 8,                        /* %r8 */
 254   1 * 8,                        /* %r9 */
 255   2 * 8,                        /* %r10 */
 256   3 * 8,                        /* %r11 */
 257   4 * 8,                        /* %r12 */
 258   5 * 8,                        /* %r13 */
 259   6 * 8,                        /* %r14 */
 260   7 * 8,                        /* %r15 */
 261   16 * 8,                       /* %rip */
 262   17 * 8,                       /* %eflags */
 263
 264   /* FIXME: kettenis/2002030531: The registers %cs, %fs and %gs are
 265      available in `struct sigcontext'.  However, they only occupy two
 266      bytes instead of four, which makes using them here rather
 267      difficult.  Leave them out for now.  */
 268   -1,                           /* %cs */
 269   -1,                           /* %ss */
 270   -1,                           /* %ds */
 271   -1,                           /* %es */
 272   -1,                           /* %fs */
 273   -1                            /* %gs */
 274 };
 275
 276 static int
 277 amd64_linux_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
 278                                  struct reggroup *group)
 279 {
 280   if (regnum == AMD64_LINUX_ORIG_RAX_REGNUM)
 281     return (group == system_reggroup
 282             || group == save_reggroup
 283             || group == restore_reggroup);
 284   return i386_register_reggroup_p (gdbarch, regnum, group);
 285 }
 286
 287 /* Set the program counter for process PTID to PC.  */
 288
 289 static void
 290 amd64_linux_write_pc (struct regcache *regcache, CORE_ADDR pc)
 291 {
 292   regcache_cooked_write_unsigned (regcache, AMD64_RIP_REGNUM, pc);
 293
 294   /* We must be careful with modifying the program counter.  If we
 295      just interrupted a system call, the kernel might try to restart
 296      it when we resume the inferior.  On restarting the system call,
 297      the kernel will try backing up the program counter even though it
 298      no longer points at the system call.  This typically results in a
 299      SIGSEGV or SIGILL.  We can prevent this by writing `-1' in the
 300      "orig_rax" pseudo-register.
 301
 302      Note that "orig_rax" is saved when setting up a dummy call frame.
 303      This means that it is properly restored when that frame is
 304      popped, and that the interrupted system call will be restarted
 305      when we resume the inferior on return from a function call from
 306      within GDB.  In all other cases the system call will not be
 307      restarted.  */
 308   regcache_cooked_write_unsigned (regcache, AMD64_LINUX_ORIG_RAX_REGNUM, -1);
 309 }
 310
 311 /* Record all registers but IP register for process-record.  */
 312
 313 static int
 314 amd64_all_but_ip_registers_record (struct regcache *regcache)
 315 {
 316   if (record_arch_list_add_reg (regcache, AMD64_RAX_REGNUM))
 317     return -1;
 318   if (record_arch_list_add_reg (regcache, AMD64_RCX_REGNUM))
 319     return -1;
 320   if (record_arch_list_add_reg (regcache, AMD64_RDX_REGNUM))
 321     return -1;
 322   if (record_arch_list_add_reg (regcache, AMD64_RBX_REGNUM))
 323     return -1;
 324   if (record_arch_list_add_reg (regcache, AMD64_RSP_REGNUM))
 325     return -1;
 326   if (record_arch_list_add_reg (regcache, AMD64_RBP_REGNUM))
 327     return -1;
 328   if (record_arch_list_add_reg (regcache, AMD64_RSI_REGNUM))
 329     return -1;
 330   if (record_arch_list_add_reg (regcache, AMD64_RDI_REGNUM))
 331     return -1;
 332   if (record_arch_list_add_reg (regcache, AMD64_R8_REGNUM))
 333     return -1;
 334   if (record_arch_list_add_reg (regcache, AMD64_R9_REGNUM))
 335     return -1;
 336   if (record_arch_list_add_reg (regcache, AMD64_R10_REGNUM))
 337     return -1;
 338   if (record_arch_list_add_reg (regcache, AMD64_R11_REGNUM))
 339     return -1;
 340   if (record_arch_list_add_reg (regcache, AMD64_R12_REGNUM))
 341     return -1;
 342   if (record_arch_list_add_reg (regcache, AMD64_R13_REGNUM))
 343     return -1;
 344   if (record_arch_list_add_reg (regcache, AMD64_R14_REGNUM))
 345     return -1;
 346   if (record_arch_list_add_reg (regcache, AMD64_R15_REGNUM))
 347     return -1;
 348   if (record_arch_list_add_reg (regcache, AMD64_EFLAGS_REGNUM))
 349     return -1;
 350
 351   return 0;
 352 }
 353
 354 /* amd64_canonicalize_syscall maps from the native amd64 Linux set
 355    of syscall ids into a canonical set of syscall ids used by
 356    process record.  */
 357
 358 static enum gdb_syscall
 359 amd64_canonicalize_syscall (enum amd64_syscall syscall_number)
 360 {
 361   switch (syscall_number) {
 362   case amd64_sys_read:
 363     return gdb_sys_read;
 364
 365   case amd64_sys_write:
 366     return gdb_sys_write;
 367
 368   case amd64_sys_open:
 369     return gdb_sys_open;
 370
 371   case amd64_sys_close:
 372     return gdb_sys_close;
 373
 374   case amd64_sys_newstat:
 375     return gdb_sys_newstat;
 376
 377   case amd64_sys_newfstat:
 378     return gdb_sys_newfstat;
 379
 380   case amd64_sys_newlstat:
 381     return gdb_sys_newlstat;
 382
 383   case amd64_sys_poll:
 384     return gdb_sys_poll;
 385
 386   case amd64_sys_lseek:
 387     return gdb_sys_lseek;
 388
 389   case amd64_sys_mmap:
 390     return gdb_sys_mmap2;
 391
 392   case amd64_sys_mprotect:
 393     return gdb_sys_mprotect;
 394
 395   case amd64_sys_munmap:
 396     return gdb_sys_munmap;
 397
 398   case amd64_sys_brk:
 399     return gdb_sys_brk;
 400
 401   case amd64_sys_rt_sigaction:
 402     return gdb_sys_rt_sigaction;
 403
 404   case amd64_sys_rt_sigprocmask:
 405     return gdb_sys_rt_sigprocmask;
 406
 407   case amd64_sys_rt_sigreturn:
 408     return gdb_sys_rt_sigreturn;
 409
 410   case amd64_sys_ioctl:
 411     return gdb_sys_ioctl;
 412
 413   case amd64_sys_pread64:
 414     return gdb_sys_pread64;
 415
 416   case amd64_sys_pwrite64:
 417     return gdb_sys_pwrite64;
 418
 419   case amd64_sys_readv:
 420     return gdb_sys_readv;
 421
 422   case amd64_sys_writev:
 423     return gdb_sys_writev;
 424
 425   case amd64_sys_access:
 426     return gdb_sys_access;
 427
 428   case amd64_sys_pipe:
 429     return gdb_sys_pipe;
 430
 431   case amd64_sys_select:
 432     return gdb_sys_select;
 433
 434   case amd64_sys_sched_yield:
 435     return gdb_sys_sched_yield;
 436
 437   case amd64_sys_mremap:
 438     return gdb_sys_mremap;
 439
 440   case amd64_sys_msync:
 441     return gdb_sys_msync;
 442
 443   case amd64_sys_mincore:
 444     return gdb_sys_mincore;
 445
 446   case amd64_sys_madvise:
 447     return gdb_sys_madvise;
 448
 449   case amd64_sys_shmget:
 450     return gdb_sys_shmget;
 451
 452   case amd64_sys_shmat:
 453     return gdb_sys_shmat;
 454
 455   case amd64_sys_shmctl:
 456     return gdb_sys_shmctl;
 457
 458   case amd64_sys_dup:
 459     return gdb_sys_dup;
 460
 461   case amd64_sys_dup2:
 462     return gdb_sys_dup2;
 463
 464   case amd64_sys_pause:
 465     return gdb_sys_pause;
 466
 467   case amd64_sys_nanosleep:
 468     return gdb_sys_nanosleep;
 469
 470   case amd64_sys_getitimer:
 471     return gdb_sys_getitimer;
 472
 473   case amd64_sys_alarm:
 474     return gdb_sys_alarm;
 475
 476   case amd64_sys_setitimer:
 477     return gdb_sys_setitimer;
 478
 479   case amd64_sys_getpid:
 480     return gdb_sys_getpid;
 481
 482   case amd64_sys_sendfile64:
 483     return gdb_sys_sendfile64;
 484
 485   case amd64_sys_socket:
 486     return gdb_sys_socket;
 487
 488   case amd64_sys_connect:
 489     return gdb_sys_connect;
 490
 491   case amd64_sys_accept:
 492     return gdb_sys_accept;
 493
 494   case amd64_sys_sendto:
 495     return gdb_sys_sendto;
 496
 497   case amd64_sys_recvfrom:
 498     return gdb_sys_recvfrom;
 499
 500   case amd64_sys_sendmsg:
 501     return gdb_sys_sendmsg;
 502
 503   case amd64_sys_recvmsg:
 504     return gdb_sys_recvmsg;
 505
 506   case amd64_sys_shutdown:
 507     return gdb_sys_shutdown;
 508
 509   case amd64_sys_bind:
 510     return gdb_sys_bind;
 511
 512   case amd64_sys_listen:
 513     return gdb_sys_listen;
 514
 515   case amd64_sys_getsockname:
 516     return gdb_sys_getsockname;
 517
 518   case amd64_sys_getpeername:
 519     return gdb_sys_getpeername;
 520
 521   case amd64_sys_socketpair:
 522     return gdb_sys_socketpair;
 523
 524   case amd64_sys_setsockopt:
 525     return gdb_sys_setsockopt;
 526
 527   case amd64_sys_getsockopt:
 528     return gdb_sys_getsockopt;
 529
 530   case amd64_sys_clone:
 531     return gdb_sys_clone;
 532
 533   case amd64_sys_fork:
 534     return gdb_sys_fork;
 535
 536   case amd64_sys_vfork:
 537     return gdb_sys_vfork;
 538
 539   case amd64_sys_execve:
 540     return gdb_sys_execve;
 541
 542   case amd64_sys_exit:
 543     return gdb_sys_exit;
 544
 545   case amd64_sys_wait4:
 546     return gdb_sys_wait4;
 547
 548   case amd64_sys_kill:
 549     return gdb_sys_kill;
 550
 551   case amd64_sys_uname:
 552     return gdb_sys_uname;
 553
 554   case amd64_sys_semget:
 555     return gdb_sys_semget;
 556
 557   case amd64_sys_semop:
 558     return gdb_sys_semop;
 559
 560   case amd64_sys_semctl:
 561     return gdb_sys_semctl;
 562
 563   case amd64_sys_shmdt:
 564     return gdb_sys_shmdt;
 565
 566   case amd64_sys_msgget:
 567     return gdb_sys_msgget;
 568
 569   case amd64_sys_msgsnd:
 570     return gdb_sys_msgsnd;
 571
 572   case amd64_sys_msgrcv:
 573     return gdb_sys_msgrcv;
 574
 575   case amd64_sys_msgctl:
 576     return gdb_sys_msgctl;
 577
 578   case amd64_sys_fcntl:
 579     return gdb_sys_fcntl;
 580
 581   case amd64_sys_flock:
 582     return gdb_sys_flock;
 583
 584   case amd64_sys_fsync:
 585     return gdb_sys_fsync;
 586
 587   case amd64_sys_fdatasync:
 588     return gdb_sys_fdatasync;
 589
 590   case amd64_sys_truncate:
 591     return gdb_sys_truncate;
 592
 593   case amd64_sys_ftruncate:
 594     return gdb_sys_ftruncate;
 595
 596   case amd64_sys_getdents:
 597     return gdb_sys_getdents;
 598
 599   case amd64_sys_getcwd:
 600     return gdb_sys_getcwd;
 601
 602   case amd64_sys_chdir:
 603     return gdb_sys_chdir;
 604
 605   case amd64_sys_fchdir:
 606     return gdb_sys_fchdir;
 607
 608   case amd64_sys_rename:
 609     return gdb_sys_rename;
 610
 611   case amd64_sys_mkdir:
 612     return gdb_sys_mkdir;
 613
 614   case amd64_sys_rmdir:
 615     return gdb_sys_rmdir;
 616
 617   case amd64_sys_creat:
 618     return gdb_sys_creat;
 619
 620   case amd64_sys_link:
 621     return gdb_sys_link;
 622
 623   case amd64_sys_unlink:
 624     return gdb_sys_unlink;
 625
 626   case amd64_sys_symlink:
 627     return gdb_sys_symlink;
 628
 629   case amd64_sys_readlink:
 630     return gdb_sys_readlink;
 631
 632   case amd64_sys_chmod:
 633     return gdb_sys_chmod;
 634
 635   case amd64_sys_fchmod:
 636     return gdb_sys_fchmod;
 637
 638   case amd64_sys_chown:
 639     return gdb_sys_chown;
 640
 641   case amd64_sys_fchown:
 642     return gdb_sys_fchown;
 643
 644   case amd64_sys_lchown:
 645     return gdb_sys_lchown;
 646
 647   case amd64_sys_umask:
 648     return gdb_sys_umask;
 649
 650   case amd64_sys_gettimeofday:
 651     return gdb_sys_gettimeofday;
 652
 653   case amd64_sys_getrlimit:
 654     return gdb_sys_getrlimit;
 655
 656   case amd64_sys_getrusage:
 657     return gdb_sys_getrusage;
 658
 659   case amd64_sys_sysinfo:
 660     return gdb_sys_sysinfo;
 661
 662   case amd64_sys_times:
 663     return gdb_sys_times;
 664
 665   case amd64_sys_ptrace:
 666     return gdb_sys_ptrace;
 667
 668   case amd64_sys_getuid:
 669     return gdb_sys_getuid;
 670
 671   case amd64_sys_syslog:
 672     return gdb_sys_syslog;
 673
 674   case amd64_sys_getgid:
 675     return gdb_sys_getgid;
 676
 677   case amd64_sys_setuid:
 678     return gdb_sys_setuid;
 679
 680   case amd64_sys_setgid:
 681     return gdb_sys_setgid;
 682
 683   case amd64_sys_geteuid:
 684     return gdb_sys_geteuid;
 685
 686   case amd64_sys_getegid:
 687     return gdb_sys_getegid;
 688
 689   case amd64_sys_setpgid:
 690     return gdb_sys_setpgid;
 691
 692   case amd64_sys_getppid:
 693     return gdb_sys_getppid;
 694
 695   case amd64_sys_getpgrp:
 696     return gdb_sys_getpgrp;
 697
 698   case amd64_sys_setsid:
 699     return gdb_sys_setsid;
 700
 701   case amd64_sys_setreuid:
 702     return gdb_sys_setreuid;
 703
 704   case amd64_sys_setregid:
 705     return gdb_sys_setregid;
 706
 707   case amd64_sys_getgroups:
 708     return gdb_sys_getgroups;
 709
 710   case amd64_sys_setgroups:
 711     return gdb_sys_setgroups;
 712
 713   case amd64_sys_setresuid:
 714     return gdb_sys_setresuid;
 715
 716   case amd64_sys_getresuid:
 717     return gdb_sys_getresuid;
 718
 719   case amd64_sys_setresgid:
 720     return gdb_sys_setresgid;
 721
 722   case amd64_sys_getresgid:
 723     return gdb_sys_getresgid;
 724
 725   case amd64_sys_getpgid:
 726     return gdb_sys_getpgid;
 727
 728   case amd64_sys_setfsuid:
 729     return gdb_sys_setfsuid;
 730
 731   case amd64_sys_setfsgid:
 732     return gdb_sys_setfsgid;
 733
 734   case amd64_sys_getsid:
 735     return gdb_sys_getsid;
 736
 737   case amd64_sys_capget:
 738     return gdb_sys_capget;
 739
 740   case amd64_sys_capset:
 741     return gdb_sys_capset;
 742
 743   case amd64_sys_rt_sigpending:
 744     return gdb_sys_rt_sigpending;
 745
 746   case amd64_sys_rt_sigtimedwait:
 747     return gdb_sys_rt_sigtimedwait;
 748
 749   case amd64_sys_rt_sigqueueinfo:
 750     return gdb_sys_rt_sigqueueinfo;
 751
 752   case amd64_sys_rt_sigsuspend:
 753     return gdb_sys_rt_sigsuspend;
 754
 755   case amd64_sys_sigaltstack:
 756     return gdb_sys_sigaltstack;
 757
 758   case amd64_sys_utime:
 759     return gdb_sys_utime;
 760
 761   case amd64_sys_mknod:
 762     return gdb_sys_mknod;
 763
 764   case amd64_sys_personality:
 765     return gdb_sys_personality;
 766
 767   case amd64_sys_ustat:
 768     return gdb_sys_ustat;
 769
 770   case amd64_sys_statfs:
 771     return gdb_sys_statfs;
 772
 773   case amd64_sys_fstatfs:
 774     return gdb_sys_fstatfs;
 775
 776   case amd64_sys_sysfs:
 777     return gdb_sys_sysfs;
 778
 779   case amd64_sys_getpriority:
 780     return gdb_sys_getpriority;
 781
 782   case amd64_sys_setpriority:
 783     return gdb_sys_setpriority;
 784
 785   case amd64_sys_sched_setparam:
 786     return gdb_sys_sched_setparam;
 787
 788   case amd64_sys_sched_getparam:
 789     return gdb_sys_sched_getparam;
 790
 791   case amd64_sys_sched_setscheduler:
 792     return gdb_sys_sched_setscheduler;
 793
 794   case amd64_sys_sched_getscheduler:
 795     return gdb_sys_sched_getscheduler;
 796
 797   case amd64_sys_sched_get_priority_max:
 798     return gdb_sys_sched_get_priority_max;
 799
 800   case amd64_sys_sched_get_priority_min:
 801     return gdb_sys_sched_get_priority_min;
 802
 803   case amd64_sys_sched_rr_get_interval:
 804     return gdb_sys_sched_rr_get_interval;
 805
 806   case amd64_sys_mlock:
 807     return gdb_sys_mlock;
 808
 809   case amd64_sys_munlock:
 810     return gdb_sys_munlock;
 811
 812   case amd64_sys_mlockall:
 813     return gdb_sys_mlockall;
 814
 815   case amd64_sys_munlockall:
 816     return gdb_sys_munlockall;
 817
 818   case amd64_sys_vhangup:
 819     return gdb_sys_vhangup;
 820
 821   case amd64_sys_modify_ldt:
 822     return gdb_sys_modify_ldt;
 823
 824   case amd64_sys_pivot_root:
 825     return gdb_sys_pivot_root;
 826
 827   case amd64_sys_sysctl:
 828     return gdb_sys_sysctl;
 829
 830   case amd64_sys_prctl:
 831     return gdb_sys_prctl;
 832
 833   case amd64_sys_arch_prctl:
 834     return -1;  /* Note */
 835
 836   case amd64_sys_adjtimex:
 837     return gdb_sys_adjtimex;
 838
 839   case amd64_sys_setrlimit:
 840     return gdb_sys_setrlimit;
 841
 842   case amd64_sys_chroot:
 843     return gdb_sys_chroot;
 844
 845   case amd64_sys_sync:
 846     return gdb_sys_sync;
 847
 848   case amd64_sys_acct:
 849     return gdb_sys_acct;
 850
 851   case amd64_sys_settimeofday:
 852     return gdb_sys_settimeofday;
 853
 854   case amd64_sys_mount:
 855     return gdb_sys_mount;
 856
 857   case amd64_sys_umount:
 858     return gdb_sys_umount;
 859
 860   case amd64_sys_swapon:
 861     return gdb_sys_swapon;
 862
 863   case amd64_sys_swapoff:
 864     return gdb_sys_swapoff;
 865
 866   case amd64_sys_reboot:
 867     return gdb_sys_reboot;
 868
 869   case amd64_sys_sethostname:
 870     return gdb_sys_sethostname;
 871
 872   case amd64_sys_setdomainname:
 873     return gdb_sys_setdomainname;
 874
 875   case amd64_sys_iopl:
 876     return gdb_sys_iopl;
 877
 878   case amd64_sys_ioperm:
 879     return gdb_sys_ioperm;
 880
 881   case amd64_sys_init_module:
 882     return gdb_sys_init_module;
 883
 884   case amd64_sys_delete_module:
 885     return gdb_sys_delete_module;
 886
 887   case amd64_sys_quotactl:
 888     return gdb_sys_quotactl;
 889
 890   case amd64_sys_nfsservctl:
 891     return gdb_sys_nfsservctl;
 892
 893   case amd64_sys_gettid:
 894     return gdb_sys_gettid;
 895
 896   case amd64_sys_readahead:
 897     return gdb_sys_readahead;
 898
 899   case amd64_sys_setxattr:
 900     return gdb_sys_setxattr;
 901
 902   case amd64_sys_lsetxattr:
 903     return gdb_sys_lsetxattr;
 904
 905   case amd64_sys_fsetxattr:
 906     return gdb_sys_fsetxattr;
 907
 908   case amd64_sys_getxattr:
 909     return gdb_sys_getxattr;
 910
 911   case amd64_sys_lgetxattr:
 912     return gdb_sys_lgetxattr;
 913
 914   case amd64_sys_fgetxattr:
 915     return gdb_sys_fgetxattr;
 916
 917   case amd64_sys_listxattr:
 918     return gdb_sys_listxattr;
 919
 920   case amd64_sys_llistxattr:
 921     return gdb_sys_llistxattr;
 922
 923   case amd64_sys_flistxattr:
 924     return gdb_sys_flistxattr;
 925
 926   case amd64_sys_removexattr:
 927     return gdb_sys_removexattr;
 928
 929   case amd64_sys_lremovexattr:
 930     return gdb_sys_lremovexattr;
 931
 932   case amd64_sys_fremovexattr:
 933     return gdb_sys_fremovexattr;
 934
 935   case amd64_sys_tkill:
 936     return gdb_sys_tkill;
 937
 938   case amd64_sys_time:
 939     return gdb_sys_time;
 940
 941   case amd64_sys_futex:
 942     return gdb_sys_futex;
 943
 944   case amd64_sys_sched_setaffinity:
 945     return gdb_sys_sched_setaffinity;
 946
 947   case amd64_sys_sched_getaffinity:
 948     return gdb_sys_sched_getaffinity;
 949
 950   case amd64_sys_io_setup:
 951     return gdb_sys_io_setup;
 952
 953   case amd64_sys_io_destroy:
 954     return gdb_sys_io_destroy;
 955
 956   case amd64_sys_io_getevents:
 957     return gdb_sys_io_getevents;
 958
 959   case amd64_sys_io_submit:
 960     return gdb_sys_io_submit;
 961
 962   case amd64_sys_io_cancel:
 963     return gdb_sys_io_cancel;
 964
 965   case amd64_sys_lookup_dcookie:
 966     return gdb_sys_lookup_dcookie;
 967
 968   case amd64_sys_epoll_create:
 969     return gdb_sys_epoll_create;
 970
 971   case amd64_sys_remap_file_pages:
 972     return gdb_sys_remap_file_pages;
 973
 974   case amd64_sys_getdents64:
 975     return gdb_sys_getdents64;
 976
 977   case amd64_sys_set_tid_address:
 978     return gdb_sys_set_tid_address;
 979
 980   case amd64_sys_restart_syscall:
 981     return gdb_sys_restart_syscall;
 982
 983   case amd64_sys_semtimedop:
 984     return gdb_sys_semtimedop;
 985
 986   case amd64_sys_fadvise64:
 987     return gdb_sys_fadvise64;
 988
 989   case amd64_sys_timer_create:
 990     return gdb_sys_timer_create;
 991
 992   case amd64_sys_timer_settime:
 993     return gdb_sys_timer_settime;
 994
 995   case amd64_sys_timer_gettime:
 996     return gdb_sys_timer_gettime;
 997
 998   case amd64_sys_timer_getoverrun:
 999     return gdb_sys_timer_getoverrun;
1000
1001   case amd64_sys_timer_delete:
1002     return gdb_sys_timer_delete;
1003
1004   case amd64_sys_clock_settime:
1005     return gdb_sys_clock_settime;
1006
1007   case amd64_sys_clock_gettime:
1008     return gdb_sys_clock_gettime;
1009
1010   case amd64_sys_clock_getres:
1011     return gdb_sys_clock_getres;
1012
1013   case amd64_sys_clock_nanosleep:
1014     return gdb_sys_clock_nanosleep;
1015
1016   case amd64_sys_exit_group:
1017     return gdb_sys_exit_group;
1018
1019   case amd64_sys_epoll_wait:
1020     return gdb_sys_epoll_wait;
1021
1022   case amd64_sys_epoll_ctl:
1023     return gdb_sys_epoll_ctl;
1024
1025   case amd64_sys_tgkill:
1026     return gdb_sys_tgkill;
1027
1028   case amd64_sys_utimes:
1029     return gdb_sys_utimes;
1030
1031   case amd64_sys_mbind:
1032     return gdb_sys_mbind;
1033
1034   case amd64_sys_set_mempolicy:
1035     return gdb_sys_set_mempolicy;
1036
1037   case amd64_sys_get_mempolicy:
1038     return gdb_sys_get_mempolicy;
1039
1040   case amd64_sys_mq_open:
1041     return gdb_sys_mq_open;
1042
1043   case amd64_sys_mq_unlink:
1044     return gdb_sys_mq_unlink;
1045
1046   case amd64_sys_mq_timedsend:
1047     return gdb_sys_mq_timedsend;
1048
1049   case amd64_sys_mq_timedreceive:
1050     return gdb_sys_mq_timedreceive;
1051
1052   case amd64_sys_mq_notify:
1053     return gdb_sys_mq_notify;
1054
1055   case amd64_sys_mq_getsetattr:
1056     return gdb_sys_mq_getsetattr;
1057
1058   case amd64_sys_kexec_load:
1059     return gdb_sys_kexec_load;
1060
1061   case amd64_sys_waitid:
1062     return gdb_sys_waitid;
1063
1064   case amd64_sys_add_key:
1065     return gdb_sys_add_key;
1066
1067   case amd64_sys_request_key:
1068     return gdb_sys_request_key;
1069
1070   case amd64_sys_keyctl:
1071     return gdb_sys_keyctl;
1072
1073   case amd64_sys_ioprio_set:
1074     return gdb_sys_ioprio_set;
1075
1076   case amd64_sys_ioprio_get:
1077     return gdb_sys_ioprio_get;
1078
1079   case amd64_sys_inotify_init:
1080     return gdb_sys_inotify_init;
1081
1082   case amd64_sys_inotify_add_watch:
1083     return gdb_sys_inotify_add_watch;
1084
1085   case amd64_sys_inotify_rm_watch:
1086     return gdb_sys_inotify_rm_watch;
1087
1088   case amd64_sys_migrate_pages:
1089     return gdb_sys_migrate_pages;
1090
1091   case amd64_sys_openat:
1092     return gdb_sys_openat;
1093
1094   case amd64_sys_mkdirat:
1095     return gdb_sys_mkdirat;
1096
1097   case amd64_sys_mknodat:
1098     return gdb_sys_mknodat;
1099
1100   case amd64_sys_fchownat:
1101     return gdb_sys_fchownat;
1102
1103   case amd64_sys_futimesat:
1104     return gdb_sys_futimesat;
1105
1106   case amd64_sys_newfstatat:
1107     return gdb_sys_newfstatat;
1108
1109   case amd64_sys_unlinkat:
1110     return gdb_sys_unlinkat;
1111
1112   case amd64_sys_renameat:
1113     return gdb_sys_renameat;
1114
1115   case amd64_sys_linkat:
1116     return gdb_sys_linkat;
1117
1118   case amd64_sys_symlinkat:
1119     return gdb_sys_symlinkat;
1120
1121   case amd64_sys_readlinkat:
1122     return gdb_sys_readlinkat;
1123
1124   case amd64_sys_fchmodat:
1125     return gdb_sys_fchmodat;
1126
1127   case amd64_sys_faccessat:
1128     return gdb_sys_faccessat;
1129
1130   case amd64_sys_pselect6:
1131     return gdb_sys_pselect6;
1132
1133   case amd64_sys_ppoll:
1134     return gdb_sys_ppoll;
1135
1136   case amd64_sys_unshare:
1137     return gdb_sys_unshare;
1138
1139   case amd64_sys_set_robust_list:
1140     return gdb_sys_set_robust_list;
1141
1142   case amd64_sys_get_robust_list:
1143     return gdb_sys_get_robust_list;
1144
1145   case amd64_sys_splice:
1146     return gdb_sys_splice;
1147
1148   case amd64_sys_tee:
1149     return gdb_sys_tee;
1150
1151   case amd64_sys_sync_file_range:
1152     return gdb_sys_sync_file_range;
1153
1154   case amd64_sys_vmsplice:
1155     return gdb_sys_vmsplice;
1156
1157   case amd64_sys_move_pages:
1158     return gdb_sys_move_pages;
1159
1160   default:
1161     return -1;
1162   }
1163 }
1164
1165 /* Parse the arguments of current system call instruction and record
1166    the values of the registers and memory that will be changed into
1167    "record_arch_list".  This instruction is "syscall".
1168
1169    Return -1 if something wrong.  */
1170
1171 static struct linux_record_tdep amd64_linux_record_tdep;
1172
1173 #define RECORD_ARCH_GET_FS      0x1003
1174 #define RECORD_ARCH_GET_GS      0x1004
1175
1176 static int
1177 amd64_linux_syscall_record (struct regcache *regcache)
1178 {
1179   int ret;
1180   ULONGEST syscall_native;
1181   enum gdb_syscall syscall_gdb = -1;
1182
1183   regcache_raw_read_unsigned (regcache, AMD64_RAX_REGNUM, &syscall_native);
1184
1185   switch (syscall_native)
1186     {
1187     case amd64_sys_rt_sigreturn:
1188       if (amd64_all_but_ip_registers_record (regcache))
1189         return -1;
1190       return 0;
1191       break;
1192
1193     case amd64_sys_arch_prctl:
1194       {
1195         ULONGEST arg3;
1196
1197         regcache_raw_read_unsigned (regcache, amd64_linux_record_tdep.arg3,
1198                                     &arg3);
1199         if (arg3 == RECORD_ARCH_GET_FS || arg3 == RECORD_ARCH_GET_GS)
1200           {
1201             CORE_ADDR addr;
1202
1203             regcache_raw_read_unsigned (regcache,
1204                                         amd64_linux_record_tdep.arg2,
1205                                         &addr);
1206             if (record_arch_list_add_mem (addr,
1207                                           amd64_linux_record_tdep.size_ulong))
1208               return -1;
1209           }
1210         goto record_regs;
1211       }
1212       break;
1213     }
1214
1215   syscall_gdb = amd64_canonicalize_syscall (syscall_native);
1216
1217   if (syscall_gdb < 0)
1218     {
1219       printf_unfiltered (_("Process record and replay target doesn't "
1220                            "support syscall number %s\n"),
1221                          pulongest (syscall_native));
1222       return -1;
1223     }
1224   else
1225     {
1226       ret = record_linux_system_call (syscall_gdb, regcache,
1227                                       &amd64_linux_record_tdep);
1228       if (ret)
1229         return ret;
1230     }
1231
1232  record_regs:
1233   /* Record the return value of the system call.  */
1234   if (record_arch_list_add_reg (regcache, AMD64_RCX_REGNUM))
1235     return -1;
1236   if (record_arch_list_add_reg (regcache, AMD64_R11_REGNUM))
1237     return -1;
1238
1239   return 0;
1240 }
1241
1242 #define AMD64_LINUX_redzone    128
1243 #define AMD64_LINUX_xstate     512
1244 #define AMD64_LINUX_frame_size 560
1245
1246 static int
1247 amd64_linux_record_signal (struct gdbarch *gdbarch,
1248                            struct regcache *regcache,
1249                            enum gdb_signal signal)
1250 {
1251   ULONGEST rsp;
1252
1253   if (amd64_all_but_ip_registers_record (regcache))
1254     return -1;
1255
1256   if (record_arch_list_add_reg (regcache, AMD64_RIP_REGNUM))
1257     return -1;
1258
1259   /* Record the change in the stack.  */
1260   regcache_raw_read_unsigned (regcache, AMD64_RSP_REGNUM, &rsp);
1261   /* redzone
1262      sp -= 128; */
1263   rsp -= AMD64_LINUX_redzone;
1264   /* This is for xstate.
1265      sp -= sizeof (struct _fpstate);  */
1266   rsp -= AMD64_LINUX_xstate;
1267   /* This is for frame_size.
1268      sp -= sizeof (struct rt_sigframe);  */
1269   rsp -= AMD64_LINUX_frame_size;
1270   if (record_arch_list_add_mem (rsp, AMD64_LINUX_redzone
1271                                      + AMD64_LINUX_xstate
1272                                      + AMD64_LINUX_frame_size))
1273     return -1;
1274
1275   if (record_arch_list_add_end ())
1276     return -1;
1277
1278   return 0;
1279 }
1280
1281 /* Get Linux/x86 target description from core dump.  */
1282
1283 static const struct target_desc *
1284 amd64_linux_core_read_description (struct gdbarch *gdbarch,
1285                                   struct target_ops *target,
1286                                   bfd *abfd)
1287 {
1288   /* Linux/x86-64.  */
1289   uint64_t xcr0 = i386_linux_core_read_xcr0 (gdbarch, target, abfd);
1290   switch ((xcr0 & I386_XSTATE_AVX_MASK))
1291     {
1292     case I386_XSTATE_AVX_MASK:
1293       if (gdbarch_ptr_bit (gdbarch) == 32)
1294         return tdesc_x32_avx_linux;
1295       else
1296         return tdesc_amd64_avx_linux;
1297     default:
1298       if (gdbarch_ptr_bit (gdbarch) == 32)
1299         return tdesc_x32_linux;
1300       else
1301         return tdesc_amd64_linux;
1302     }
1303 }
1304
1305 static void
1306 amd64_linux_init_abi_common(struct gdbarch_info info, struct gdbarch *gdbarch)
1307 {
1308   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
1309
1310   linux_init_abi (info, gdbarch);
1311
1312   tdep->sigtramp_p = amd64_linux_sigtramp_p;
1313   tdep->sigcontext_addr = amd64_linux_sigcontext_addr;
1314   tdep->sc_reg_offset = amd64_linux_sc_reg_offset;
1315   tdep->sc_num_regs = ARRAY_SIZE (amd64_linux_sc_reg_offset);
1316
1317   tdep->xsave_xcr0_offset = I386_LINUX_XSAVE_XCR0_OFFSET;
1318
1319   /* Add the %orig_rax register used for syscall restarting.  */
1320   set_gdbarch_write_pc (gdbarch, amd64_linux_write_pc);
1321
1322   tdep->register_reggroup_p = amd64_linux_register_reggroup_p;
1323
1324   /* Functions for 'catch syscall'.  */
1325   set_xml_syscall_file_name (XML_SYSCALL_FILENAME_AMD64);
1326   set_gdbarch_get_syscall_number (gdbarch,
1327                                   amd64_linux_get_syscall_number);
1328
1329   /* Enable TLS support.  */
1330   set_gdbarch_fetch_tls_load_module_address (gdbarch,
1331                                              svr4_fetch_objfile_link_map);
1332
1333   /* GNU/Linux uses SVR4-style shared libraries.  */
1334   set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
1335
1336   /* GNU/Linux uses the dynamic linker included in the GNU C Library.  */
1337   set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
1338
1339   /* Install supported register note sections.  */
1340   set_gdbarch_core_regset_sections (gdbarch, amd64_linux_regset_sections);
1341
1342   set_gdbarch_core_read_description (gdbarch,
1343                                      amd64_linux_core_read_description);
1344
1345   /* Displaced stepping.  */
1346   set_gdbarch_displaced_step_copy_insn (gdbarch,
1347                                         amd64_displaced_step_copy_insn);
1348   set_gdbarch_displaced_step_fixup (gdbarch, amd64_displaced_step_fixup);
1349   set_gdbarch_displaced_step_free_closure (gdbarch,
1350                                            simple_displaced_step_free_closure);
1351   set_gdbarch_displaced_step_location (gdbarch,
1352                                        displaced_step_at_entry_point);
1353
1354   set_gdbarch_get_siginfo_type (gdbarch, linux_get_siginfo_type);
1355
1356   set_gdbarch_process_record (gdbarch, i386_process_record);
1357   set_gdbarch_process_record_signal (gdbarch, amd64_linux_record_signal);
1358
1359   /* Initialize the amd64_linux_record_tdep.  */
1360   /* These values are the size of the type that will be used in a system
1361      call.  They are obtained from Linux Kernel source.  */
1362   amd64_linux_record_tdep.size_pointer
1363     = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
1364   amd64_linux_record_tdep.size__old_kernel_stat = 32;
1365   amd64_linux_record_tdep.size_tms = 32;
1366   amd64_linux_record_tdep.size_loff_t = 8;
1367   amd64_linux_record_tdep.size_flock = 32;
1368   amd64_linux_record_tdep.size_oldold_utsname = 45;
1369   amd64_linux_record_tdep.size_ustat = 32;
1370   /* ADM64 doesn't need this size because it doesn't have sys_sigaction
1371      but sys_rt_sigaction.  */
1372   amd64_linux_record_tdep.size_old_sigaction = 152;
1373   /* ADM64 doesn't need this size because it doesn't have sys_sigpending
1374      but sys_rt_sigpending.  */
1375   amd64_linux_record_tdep.size_old_sigset_t = 128;
1376   amd64_linux_record_tdep.size_rlimit = 16;
1377   amd64_linux_record_tdep.size_rusage = 144;
1378   amd64_linux_record_tdep.size_timeval = 16;
1379   amd64_linux_record_tdep.size_timezone = 8;
1380   /* ADM64 doesn't need this size because it doesn't have sys_getgroups16
1381      but sys_getgroups.  */
1382   amd64_linux_record_tdep.size_old_gid_t = 2;
1383   /* ADM64 doesn't need this size because it doesn't have sys_getresuid16
1384      but sys_getresuid.  */
1385   amd64_linux_record_tdep.size_old_uid_t = 2;
1386   amd64_linux_record_tdep.size_fd_set = 128;
1387   amd64_linux_record_tdep.size_dirent = 280;
1388   amd64_linux_record_tdep.size_dirent64 = 280;
1389   amd64_linux_record_tdep.size_statfs = 120;
1390   amd64_linux_record_tdep.size_statfs64 = 120;
1391   amd64_linux_record_tdep.size_sockaddr = 16;
1392   amd64_linux_record_tdep.size_int
1393     = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
1394   amd64_linux_record_tdep.size_long
1395     = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
1396   amd64_linux_record_tdep.size_ulong
1397     = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
1398   amd64_linux_record_tdep.size_msghdr = 56;
1399   amd64_linux_record_tdep.size_itimerval = 32;
1400   amd64_linux_record_tdep.size_stat = 144;
1401   amd64_linux_record_tdep.size_old_utsname = 325;
1402   amd64_linux_record_tdep.size_sysinfo = 112;
1403   amd64_linux_record_tdep.size_msqid_ds = 120;
1404   amd64_linux_record_tdep.size_shmid_ds = 112;
1405   amd64_linux_record_tdep.size_new_utsname = 390;
1406   amd64_linux_record_tdep.size_timex = 208;
1407   amd64_linux_record_tdep.size_mem_dqinfo = 24;
1408   amd64_linux_record_tdep.size_if_dqblk = 72;
1409   amd64_linux_record_tdep.size_fs_quota_stat = 80;
1410   amd64_linux_record_tdep.size_timespec = 16;
1411   amd64_linux_record_tdep.size_pollfd = 8;
1412   amd64_linux_record_tdep.size_NFS_FHSIZE = 32;
1413   amd64_linux_record_tdep.size_knfsd_fh = 132;
1414   amd64_linux_record_tdep.size_TASK_COMM_LEN = 16;
1415   amd64_linux_record_tdep.size_sigaction = 152;
1416   amd64_linux_record_tdep.size_sigset_t = 128;
1417   amd64_linux_record_tdep.size_siginfo_t = 128;
1418   amd64_linux_record_tdep.size_cap_user_data_t = 8;
1419   amd64_linux_record_tdep.size_stack_t = 24;
1420   amd64_linux_record_tdep.size_off_t = 8;
1421   amd64_linux_record_tdep.size_stat64 = 144;
1422   amd64_linux_record_tdep.size_gid_t = 4;
1423   amd64_linux_record_tdep.size_uid_t = 4;
1424   amd64_linux_record_tdep.size_PAGE_SIZE = 4096;
1425   amd64_linux_record_tdep.size_flock64 = 32;
1426   amd64_linux_record_tdep.size_user_desc = 16;
1427   amd64_linux_record_tdep.size_io_event = 32;
1428   amd64_linux_record_tdep.size_iocb = 64;
1429   amd64_linux_record_tdep.size_epoll_event = 12;
1430   amd64_linux_record_tdep.size_itimerspec = 32;
1431   amd64_linux_record_tdep.size_mq_attr = 64;
1432   amd64_linux_record_tdep.size_siginfo = 128;
1433   amd64_linux_record_tdep.size_termios = 60;
1434   amd64_linux_record_tdep.size_termios2 = 44;
1435   amd64_linux_record_tdep.size_pid_t = 4;
1436   amd64_linux_record_tdep.size_winsize = 8;
1437   amd64_linux_record_tdep.size_serial_struct = 72;
1438   amd64_linux_record_tdep.size_serial_icounter_struct = 80;
1439   amd64_linux_record_tdep.size_hayes_esp_config = 12;
1440   amd64_linux_record_tdep.size_size_t = 8;
1441   amd64_linux_record_tdep.size_iovec = 16;
1442
1443   /* These values are the second argument of system call "sys_ioctl".
1444      They are obtained from Linux Kernel source.  */
1445   amd64_linux_record_tdep.ioctl_TCGETS = 0x5401;
1446   amd64_linux_record_tdep.ioctl_TCSETS = 0x5402;
1447   amd64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
1448   amd64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
1449   amd64_linux_record_tdep.ioctl_TCGETA = 0x5405;
1450   amd64_linux_record_tdep.ioctl_TCSETA = 0x5406;
1451   amd64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
1452   amd64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
1453   amd64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
1454   amd64_linux_record_tdep.ioctl_TCXONC = 0x540A;
1455   amd64_linux_record_tdep.ioctl_TCFLSH = 0x540B;
1456   amd64_linux_record_tdep.ioctl_TIOCEXCL = 0x540C;
1457   amd64_linux_record_tdep.ioctl_TIOCNXCL = 0x540D;
1458   amd64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540E;
1459   amd64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540F;
1460   amd64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
1461   amd64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
1462   amd64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
1463   amd64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
1464   amd64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
1465   amd64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
1466   amd64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
1467   amd64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
1468   amd64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
1469   amd64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
1470   amd64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541A;
1471   amd64_linux_record_tdep.ioctl_FIONREAD = 0x541B;
1472   amd64_linux_record_tdep.ioctl_TIOCINQ
1473     = amd64_linux_record_tdep.ioctl_FIONREAD;
1474   amd64_linux_record_tdep.ioctl_TIOCLINUX = 0x541C;
1475   amd64_linux_record_tdep.ioctl_TIOCCONS = 0x541D;
1476   amd64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541E;
1477   amd64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541F;
1478   amd64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
1479   amd64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
1480   amd64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
1481   amd64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
1482   amd64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
1483   amd64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
1484   amd64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
1485   amd64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
1486   amd64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
1487   amd64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
1488   amd64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
1489   amd64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
1490   amd64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
1491   amd64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
1492   amd64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
1493   amd64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
1494   amd64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
1495   amd64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
1496   amd64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
1497   amd64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
1498   amd64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
1499   amd64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
1500   amd64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
1501   amd64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
1502   amd64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
1503   amd64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
1504   amd64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545A;
1505   amd64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545B;
1506   amd64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545C;
1507   amd64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545D;
1508   amd64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545E;
1509   amd64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545F;
1510   amd64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
1511
1512   /* These values are the second argument of system call "sys_fcntl"
1513      and "sys_fcntl64".  They are obtained from Linux Kernel source.  */
1514   amd64_linux_record_tdep.fcntl_F_GETLK = 5;
1515   amd64_linux_record_tdep.fcntl_F_GETLK64 = 12;
1516   amd64_linux_record_tdep.fcntl_F_SETLK64 = 13;
1517   amd64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
1518
1519   amd64_linux_record_tdep.arg1 = AMD64_RDI_REGNUM;
1520   amd64_linux_record_tdep.arg2 = AMD64_RSI_REGNUM;
1521   amd64_linux_record_tdep.arg3 = AMD64_RDX_REGNUM;
1522   amd64_linux_record_tdep.arg4 = AMD64_R10_REGNUM;
1523   amd64_linux_record_tdep.arg5 = AMD64_R8_REGNUM;
1524   amd64_linux_record_tdep.arg6 = AMD64_R9_REGNUM;
1525
1526   tdep->i386_syscall_record = amd64_linux_syscall_record;
1527 }
1528
1529 static void
1530 amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
1531 {
1532   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
1533   const struct target_desc *tdesc = info.target_desc;
1534   struct tdesc_arch_data *tdesc_data = (void *) info.tdep_info;
1535   const struct tdesc_feature *feature;
1536   int valid_p;
1537
1538   gdb_assert (tdesc_data);
1539
1540   tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
1541   tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
1542   tdep->sizeof_gregset = 27 * 8;
1543
1544   amd64_init_abi (info, gdbarch);
1545
1546   /* Reserve a number for orig_rax.  */
1547   set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS);
1548
1549   if (! tdesc_has_registers (tdesc))
1550     tdesc = tdesc_amd64_linux;
1551   tdep->tdesc = tdesc;
1552
1553   feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
1554   if (feature == NULL)
1555     return;
1556
1557   valid_p = tdesc_numbered_register (feature, tdesc_data,
1558                                      AMD64_LINUX_ORIG_RAX_REGNUM,
1559                                      "orig_rax");
1560   if (!valid_p)
1561     return;
1562
1563   amd64_linux_init_abi_common (info, gdbarch);
1564
1565   /* GNU/Linux uses SVR4-style shared libraries.  */
1566   set_solib_svr4_fetch_link_map_offsets
1567     (gdbarch, svr4_lp64_fetch_link_map_offsets);
1568 }
1569
1570 static void
1571 amd64_x32_linux_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
1572 {
1573   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
1574   const struct target_desc *tdesc = info.target_desc;
1575   struct tdesc_arch_data *tdesc_data = (void *) info.tdep_info;
1576   const struct tdesc_feature *feature;
1577   int valid_p;
1578
1579   gdb_assert (tdesc_data);
1580
1581   tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
1582   tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
1583   tdep->sizeof_gregset = 27 * 8;
1584
1585   amd64_x32_init_abi (info, gdbarch);
1586
1587   /* Reserve a number for orig_rax.  */
1588   set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS);
1589
1590   if (! tdesc_has_registers (tdesc))
1591     tdesc = tdesc_x32_linux;
1592   tdep->tdesc = tdesc;
1593
1594   feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
1595   if (feature == NULL)
1596     return;
1597
1598   valid_p = tdesc_numbered_register (feature, tdesc_data,
1599                                      AMD64_LINUX_ORIG_RAX_REGNUM,
1600                                      "orig_rax");
1601   if (!valid_p)
1602     return;
1603
1604   amd64_linux_init_abi_common (info, gdbarch);
1605
1606   /* GNU/Linux uses SVR4-style shared libraries.  */
1607   set_solib_svr4_fetch_link_map_offsets
1608     (gdbarch, svr4_ilp32_fetch_link_map_offsets);
1609 }
1610 \f
1611
1612 /* Provide a prototype to silence -Wmissing-prototypes.  */
1613 extern void _initialize_amd64_linux_tdep (void);
1614
1615 void
1616 _initialize_amd64_linux_tdep (void)
1617 {
1618   gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
1619                           GDB_OSABI_LINUX, amd64_linux_init_abi);
1620   gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x64_32,
1621                           GDB_OSABI_LINUX, amd64_x32_linux_init_abi);
1622
1623   /* Initialize the Linux target description.  */
1624   initialize_tdesc_amd64_linux ();
1625   initialize_tdesc_amd64_avx_linux ();
1626   initialize_tdesc_x32_linux ();
1627   initialize_tdesc_x32_avx_linux ();
1628 }