xref: /netbsd-src/external/gpl3/gdb.old/dist/gdb/amd64-linux-tdep.c (revision e6c7e151de239c49d2e38720a061ed9d1fa99309)
1 /* Target-dependent code for GNU/Linux x86-64.
2 
3    Copyright (C) 2001-2017 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 "parser-defs.h"
32 #include "user-regs.h"
33 #include "amd64-linux-tdep.h"
34 #include "i386-linux-tdep.h"
35 #include "linux-tdep.h"
36 #include "x86-xstate.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/amd64-mpx-linux.c"
46 #include "features/i386/amd64-avx-mpx-linux.c"
47 #include "features/i386/amd64-avx-avx512-linux.c"
48 #include "features/i386/amd64-avx-mpx-avx512-pku-linux.c"
49 
50 #include "features/i386/x32-linux.c"
51 #include "features/i386/x32-avx-linux.c"
52 #include "features/i386/x32-avx-avx512-linux.c"
53 
54 /* The syscall's XML filename for i386.  */
55 #define XML_SYSCALL_FILENAME_AMD64 "syscalls/amd64-linux.xml"
56 
57 #include "record-full.h"
58 #include "linux-record.h"
59 
60 /* Mapping between the general-purpose registers in `struct user'
61    format and GDB's register cache layout.  */
62 
63 /* From <sys/reg.h>.  */
64 int amd64_linux_gregset_reg_offset[] =
65 {
66   10 * 8,			/* %rax */
67   5 * 8,			/* %rbx */
68   11 * 8,			/* %rcx */
69   12 * 8,			/* %rdx */
70   13 * 8,			/* %rsi */
71   14 * 8,			/* %rdi */
72   4 * 8,			/* %rbp */
73   19 * 8,			/* %rsp */
74   9 * 8,			/* %r8 ...  */
75   8 * 8,
76   7 * 8,
77   6 * 8,
78   3 * 8,
79   2 * 8,
80   1 * 8,
81   0 * 8,			/* ... %r15 */
82   16 * 8,			/* %rip */
83   18 * 8,			/* %eflags */
84   17 * 8,			/* %cs */
85   20 * 8,			/* %ss */
86   23 * 8,			/* %ds */
87   24 * 8,			/* %es */
88   25 * 8,			/* %fs */
89   26 * 8,			/* %gs */
90   -1, -1, -1, -1, -1, -1, -1, -1,
91   -1, -1, -1, -1, -1, -1, -1, -1,
92   -1, -1, -1, -1, -1, -1, -1, -1,
93   -1, -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,		/* MPX registers BND0 ... BND3.  */
97   -1, -1,			/* MPX registers BNDCFGU and BNDSTATUS.  */
98   -1, -1, -1, -1, -1, -1, -1, -1,     /* xmm16 ... xmm31 (AVX512)  */
99   -1, -1, -1, -1, -1, -1, -1, -1,
100   -1, -1, -1, -1, -1, -1, -1, -1,     /* ymm16 ... ymm31 (AVX512)  */
101   -1, -1, -1, -1, -1, -1, -1, -1,
102   -1, -1, -1, -1, -1, -1, -1, -1,     /* k0 ... k7 (AVX512)  */
103   -1, -1, -1, -1, -1, -1, -1, -1,     /* zmm0 ... zmm31 (AVX512)  */
104   -1, -1, -1, -1, -1, -1, -1, -1,
105   -1, -1, -1, -1, -1, -1, -1, -1,
106   -1, -1, -1, -1, -1, -1, -1, -1,
107   -1,				/* PKEYS register pkru  */
108 
109   /* End of hardware registers */
110   21 * 8, 22 * 8,		      /* fs_base and gs_base.  */
111   15 * 8			      /* "orig_rax" */
112 };
113 
114 
115 /* Support for signal handlers.  */
116 
117 #define LINUX_SIGTRAMP_INSN0	0x48	/* mov $NNNNNNNN, %rax */
118 #define LINUX_SIGTRAMP_OFFSET0	0
119 #define LINUX_SIGTRAMP_INSN1	0x0f	/* syscall */
120 #define LINUX_SIGTRAMP_OFFSET1	7
121 
122 static const gdb_byte amd64_linux_sigtramp_code[] =
123 {
124   /* mov $__NR_rt_sigreturn, %rax */
125   LINUX_SIGTRAMP_INSN0, 0xc7, 0xc0, 0x0f, 0x00, 0x00, 0x00,
126   /* syscall */
127   LINUX_SIGTRAMP_INSN1, 0x05
128 };
129 
130 static const gdb_byte amd64_x32_linux_sigtramp_code[] =
131 {
132   /* mov $__NR_rt_sigreturn, %rax.  */
133   LINUX_SIGTRAMP_INSN0, 0xc7, 0xc0, 0x01, 0x02, 0x00, 0x40,
134   /* syscall */
135   LINUX_SIGTRAMP_INSN1, 0x05
136 };
137 
138 #define LINUX_SIGTRAMP_LEN (sizeof amd64_linux_sigtramp_code)
139 
140 /* If PC is in a sigtramp routine, return the address of the start of
141    the routine.  Otherwise, return 0.  */
142 
143 static CORE_ADDR
144 amd64_linux_sigtramp_start (struct frame_info *this_frame)
145 {
146   struct gdbarch *gdbarch;
147   const gdb_byte *sigtramp_code;
148   CORE_ADDR pc = get_frame_pc (this_frame);
149   gdb_byte buf[LINUX_SIGTRAMP_LEN];
150 
151   /* We only recognize a signal trampoline if PC is at the start of
152      one of the two instructions.  We optimize for finding the PC at
153      the start, as will be the case when the trampoline is not the
154      first frame on the stack.  We assume that in the case where the
155      PC is not at the start of the instruction sequence, there will be
156      a few trailing readable bytes on the stack.  */
157 
158   if (!safe_frame_unwind_memory (this_frame, pc, buf, sizeof buf))
159     return 0;
160 
161   if (buf[0] != LINUX_SIGTRAMP_INSN0)
162     {
163       if (buf[0] != LINUX_SIGTRAMP_INSN1)
164 	return 0;
165 
166       pc -= LINUX_SIGTRAMP_OFFSET1;
167       if (!safe_frame_unwind_memory (this_frame, pc, buf, sizeof buf))
168 	return 0;
169     }
170 
171   gdbarch = get_frame_arch (this_frame);
172   if (gdbarch_ptr_bit (gdbarch) == 32)
173     sigtramp_code = amd64_x32_linux_sigtramp_code;
174   else
175     sigtramp_code = amd64_linux_sigtramp_code;
176   if (memcmp (buf, sigtramp_code, LINUX_SIGTRAMP_LEN) != 0)
177     return 0;
178 
179   return pc;
180 }
181 
182 /* Return whether THIS_FRAME corresponds to a GNU/Linux sigtramp
183    routine.  */
184 
185 static int
186 amd64_linux_sigtramp_p (struct frame_info *this_frame)
187 {
188   CORE_ADDR pc = get_frame_pc (this_frame);
189   const char *name;
190 
191   find_pc_partial_function (pc, &name, NULL, NULL);
192 
193   /* If we have NAME, we can optimize the search.  The trampoline is
194      named __restore_rt.  However, it isn't dynamically exported from
195      the shared C library, so the trampoline may appear to be part of
196      the preceding function.  This should always be sigaction,
197      __sigaction, or __libc_sigaction (all aliases to the same
198      function).  */
199   if (name == NULL || strstr (name, "sigaction") != NULL)
200     return (amd64_linux_sigtramp_start (this_frame) != 0);
201 
202   return (strcmp ("__restore_rt", name) == 0);
203 }
204 
205 /* Offset to struct sigcontext in ucontext, from <asm/ucontext.h>.  */
206 #define AMD64_LINUX_UCONTEXT_SIGCONTEXT_OFFSET 40
207 
208 /* Assuming THIS_FRAME is a GNU/Linux sigtramp routine, return the
209    address of the associated sigcontext structure.  */
210 
211 static CORE_ADDR
212 amd64_linux_sigcontext_addr (struct frame_info *this_frame)
213 {
214   struct gdbarch *gdbarch = get_frame_arch (this_frame);
215   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
216   CORE_ADDR sp;
217   gdb_byte buf[8];
218 
219   get_frame_register (this_frame, AMD64_RSP_REGNUM, buf);
220   sp = extract_unsigned_integer (buf, 8, byte_order);
221 
222   /* The sigcontext structure is part of the user context.  A pointer
223      to the user context is passed as the third argument to the signal
224      handler, i.e. in %rdx.  Unfortunately %rdx isn't preserved across
225      function calls so we can't use it.  Fortunately the user context
226      is part of the signal frame and the unwound %rsp directly points
227      at it.  */
228   return sp + AMD64_LINUX_UCONTEXT_SIGCONTEXT_OFFSET;
229 }
230 
231 
232 static LONGEST
233 amd64_linux_get_syscall_number (struct gdbarch *gdbarch,
234                                 ptid_t ptid)
235 {
236   struct regcache *regcache = get_thread_regcache (ptid);
237   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
238   /* The content of a register.  */
239   gdb_byte buf[8];
240   /* The result.  */
241   LONGEST ret;
242 
243   /* Getting the system call number from the register.
244      When dealing with x86_64 architecture, this information
245      is stored at %rax register.  */
246   regcache_cooked_read (regcache, AMD64_LINUX_ORIG_RAX_REGNUM, buf);
247 
248   ret = extract_signed_integer (buf, 8, byte_order);
249 
250   return ret;
251 }
252 
253 
254 /* From <asm/sigcontext.h>.  */
255 static int amd64_linux_sc_reg_offset[] =
256 {
257   13 * 8,			/* %rax */
258   11 * 8,			/* %rbx */
259   14 * 8,			/* %rcx */
260   12 * 8,			/* %rdx */
261   9 * 8,			/* %rsi */
262   8 * 8,			/* %rdi */
263   10 * 8,			/* %rbp */
264   15 * 8,			/* %rsp */
265   0 * 8,			/* %r8 */
266   1 * 8,			/* %r9 */
267   2 * 8,			/* %r10 */
268   3 * 8,			/* %r11 */
269   4 * 8,			/* %r12 */
270   5 * 8,			/* %r13 */
271   6 * 8,			/* %r14 */
272   7 * 8,			/* %r15 */
273   16 * 8,			/* %rip */
274   17 * 8,			/* %eflags */
275 
276   /* FIXME: kettenis/2002030531: The registers %cs, %fs and %gs are
277      available in `struct sigcontext'.  However, they only occupy two
278      bytes instead of four, which makes using them here rather
279      difficult.  Leave them out for now.  */
280   -1,				/* %cs */
281   -1,				/* %ss */
282   -1,				/* %ds */
283   -1,				/* %es */
284   -1,				/* %fs */
285   -1				/* %gs */
286 };
287 
288 static int
289 amd64_linux_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
290 				 struct reggroup *group)
291 {
292   if (regnum == AMD64_LINUX_ORIG_RAX_REGNUM
293       || regnum == AMD64_FSBASE_REGNUM
294       || regnum == AMD64_GSBASE_REGNUM)
295     return (group == system_reggroup
296             || group == save_reggroup
297             || group == restore_reggroup);
298   return i386_register_reggroup_p (gdbarch, regnum, group);
299 }
300 
301 /* Set the program counter for process PTID to PC.  */
302 
303 static void
304 amd64_linux_write_pc (struct regcache *regcache, CORE_ADDR pc)
305 {
306   regcache_cooked_write_unsigned (regcache, AMD64_RIP_REGNUM, pc);
307 
308   /* We must be careful with modifying the program counter.  If we
309      just interrupted a system call, the kernel might try to restart
310      it when we resume the inferior.  On restarting the system call,
311      the kernel will try backing up the program counter even though it
312      no longer points at the system call.  This typically results in a
313      SIGSEGV or SIGILL.  We can prevent this by writing `-1' in the
314      "orig_rax" pseudo-register.
315 
316      Note that "orig_rax" is saved when setting up a dummy call frame.
317      This means that it is properly restored when that frame is
318      popped, and that the interrupted system call will be restarted
319      when we resume the inferior on return from a function call from
320      within GDB.  In all other cases the system call will not be
321      restarted.  */
322   regcache_cooked_write_unsigned (regcache, AMD64_LINUX_ORIG_RAX_REGNUM, -1);
323 }
324 
325 /* Record all registers but IP register for process-record.  */
326 
327 static int
328 amd64_all_but_ip_registers_record (struct regcache *regcache)
329 {
330   if (record_full_arch_list_add_reg (regcache, AMD64_RAX_REGNUM))
331     return -1;
332   if (record_full_arch_list_add_reg (regcache, AMD64_RCX_REGNUM))
333     return -1;
334   if (record_full_arch_list_add_reg (regcache, AMD64_RDX_REGNUM))
335     return -1;
336   if (record_full_arch_list_add_reg (regcache, AMD64_RBX_REGNUM))
337     return -1;
338   if (record_full_arch_list_add_reg (regcache, AMD64_RSP_REGNUM))
339     return -1;
340   if (record_full_arch_list_add_reg (regcache, AMD64_RBP_REGNUM))
341     return -1;
342   if (record_full_arch_list_add_reg (regcache, AMD64_RSI_REGNUM))
343     return -1;
344   if (record_full_arch_list_add_reg (regcache, AMD64_RDI_REGNUM))
345     return -1;
346   if (record_full_arch_list_add_reg (regcache, AMD64_R8_REGNUM))
347     return -1;
348   if (record_full_arch_list_add_reg (regcache, AMD64_R9_REGNUM))
349     return -1;
350   if (record_full_arch_list_add_reg (regcache, AMD64_R10_REGNUM))
351     return -1;
352   if (record_full_arch_list_add_reg (regcache, AMD64_R11_REGNUM))
353     return -1;
354   if (record_full_arch_list_add_reg (regcache, AMD64_R12_REGNUM))
355     return -1;
356   if (record_full_arch_list_add_reg (regcache, AMD64_R13_REGNUM))
357     return -1;
358   if (record_full_arch_list_add_reg (regcache, AMD64_R14_REGNUM))
359     return -1;
360   if (record_full_arch_list_add_reg (regcache, AMD64_R15_REGNUM))
361     return -1;
362   if (record_full_arch_list_add_reg (regcache, AMD64_EFLAGS_REGNUM))
363     return -1;
364 
365   return 0;
366 }
367 
368 /* amd64_canonicalize_syscall maps from the native amd64 Linux set
369    of syscall ids into a canonical set of syscall ids used by
370    process record.  */
371 
372 static enum gdb_syscall
373 amd64_canonicalize_syscall (enum amd64_syscall syscall_number)
374 {
375   switch (syscall_number) {
376   case amd64_sys_read:
377   case amd64_x32_sys_read:
378     return gdb_sys_read;
379 
380   case amd64_sys_write:
381   case amd64_x32_sys_write:
382     return gdb_sys_write;
383 
384   case amd64_sys_open:
385   case amd64_x32_sys_open:
386     return gdb_sys_open;
387 
388   case amd64_sys_close:
389   case amd64_x32_sys_close:
390     return gdb_sys_close;
391 
392   case amd64_sys_newstat:
393   case amd64_x32_sys_newstat:
394     return gdb_sys_newstat;
395 
396   case amd64_sys_newfstat:
397   case amd64_x32_sys_newfstat:
398     return gdb_sys_newfstat;
399 
400   case amd64_sys_newlstat:
401   case amd64_x32_sys_newlstat:
402     return gdb_sys_newlstat;
403 
404   case amd64_sys_poll:
405   case amd64_x32_sys_poll:
406     return gdb_sys_poll;
407 
408   case amd64_sys_lseek:
409   case amd64_x32_sys_lseek:
410     return gdb_sys_lseek;
411 
412   case amd64_sys_mmap:
413   case amd64_x32_sys_mmap:
414     return gdb_sys_mmap2;
415 
416   case amd64_sys_mprotect:
417   case amd64_x32_sys_mprotect:
418     return gdb_sys_mprotect;
419 
420   case amd64_sys_munmap:
421   case amd64_x32_sys_munmap:
422     return gdb_sys_munmap;
423 
424   case amd64_sys_brk:
425   case amd64_x32_sys_brk:
426     return gdb_sys_brk;
427 
428   case amd64_sys_rt_sigaction:
429   case amd64_x32_sys_rt_sigaction:
430     return gdb_sys_rt_sigaction;
431 
432   case amd64_sys_rt_sigprocmask:
433   case amd64_x32_sys_rt_sigprocmask:
434     return gdb_sys_rt_sigprocmask;
435 
436   case amd64_sys_rt_sigreturn:
437   case amd64_x32_sys_rt_sigreturn:
438     return gdb_sys_rt_sigreturn;
439 
440   case amd64_sys_ioctl:
441   case amd64_x32_sys_ioctl:
442     return gdb_sys_ioctl;
443 
444   case amd64_sys_pread64:
445   case amd64_x32_sys_pread64:
446     return gdb_sys_pread64;
447 
448   case amd64_sys_pwrite64:
449   case amd64_x32_sys_pwrite64:
450     return gdb_sys_pwrite64;
451 
452   case amd64_sys_readv:
453   case amd64_x32_sys_readv:
454     return gdb_sys_readv;
455 
456   case amd64_sys_writev:
457   case amd64_x32_sys_writev:
458     return gdb_sys_writev;
459 
460   case amd64_sys_access:
461   case amd64_x32_sys_access:
462     return gdb_sys_access;
463 
464   case amd64_sys_pipe:
465   case amd64_x32_sys_pipe:
466     return gdb_sys_pipe;
467 
468   case amd64_sys_select:
469   case amd64_x32_sys_select:
470     return gdb_sys_select;
471 
472   case amd64_sys_sched_yield:
473   case amd64_x32_sys_sched_yield:
474     return gdb_sys_sched_yield;
475 
476   case amd64_sys_mremap:
477   case amd64_x32_sys_mremap:
478     return gdb_sys_mremap;
479 
480   case amd64_sys_msync:
481   case amd64_x32_sys_msync:
482     return gdb_sys_msync;
483 
484   case amd64_sys_mincore:
485   case amd64_x32_sys_mincore:
486     return gdb_sys_mincore;
487 
488   case amd64_sys_madvise:
489   case amd64_x32_sys_madvise:
490     return gdb_sys_madvise;
491 
492   case amd64_sys_shmget:
493   case amd64_x32_sys_shmget:
494     return gdb_sys_shmget;
495 
496   case amd64_sys_shmat:
497   case amd64_x32_sys_shmat:
498     return gdb_sys_shmat;
499 
500   case amd64_sys_shmctl:
501   case amd64_x32_sys_shmctl:
502     return gdb_sys_shmctl;
503 
504   case amd64_sys_dup:
505   case amd64_x32_sys_dup:
506     return gdb_sys_dup;
507 
508   case amd64_sys_dup2:
509   case amd64_x32_sys_dup2:
510     return gdb_sys_dup2;
511 
512   case amd64_sys_pause:
513   case amd64_x32_sys_pause:
514     return gdb_sys_pause;
515 
516   case amd64_sys_nanosleep:
517   case amd64_x32_sys_nanosleep:
518     return gdb_sys_nanosleep;
519 
520   case amd64_sys_getitimer:
521   case amd64_x32_sys_getitimer:
522     return gdb_sys_getitimer;
523 
524   case amd64_sys_alarm:
525   case amd64_x32_sys_alarm:
526     return gdb_sys_alarm;
527 
528   case amd64_sys_setitimer:
529   case amd64_x32_sys_setitimer:
530     return gdb_sys_setitimer;
531 
532   case amd64_sys_getpid:
533   case amd64_x32_sys_getpid:
534     return gdb_sys_getpid;
535 
536   case amd64_sys_sendfile64:
537   case amd64_x32_sys_sendfile64:
538     return gdb_sys_sendfile64;
539 
540   case amd64_sys_socket:
541   case amd64_x32_sys_socket:
542     return gdb_sys_socket;
543 
544   case amd64_sys_connect:
545   case amd64_x32_sys_connect:
546     return gdb_sys_connect;
547 
548   case amd64_sys_accept:
549   case amd64_x32_sys_accept:
550     return gdb_sys_accept;
551 
552   case amd64_sys_sendto:
553   case amd64_x32_sys_sendto:
554     return gdb_sys_sendto;
555 
556   case amd64_sys_recvfrom:
557   case amd64_x32_sys_recvfrom:
558     return gdb_sys_recvfrom;
559 
560   case amd64_sys_sendmsg:
561   case amd64_x32_sys_sendmsg:
562     return gdb_sys_sendmsg;
563 
564   case amd64_sys_recvmsg:
565   case amd64_x32_sys_recvmsg:
566     return gdb_sys_recvmsg;
567 
568   case amd64_sys_shutdown:
569   case amd64_x32_sys_shutdown:
570     return gdb_sys_shutdown;
571 
572   case amd64_sys_bind:
573   case amd64_x32_sys_bind:
574     return gdb_sys_bind;
575 
576   case amd64_sys_listen:
577   case amd64_x32_sys_listen:
578     return gdb_sys_listen;
579 
580   case amd64_sys_getsockname:
581   case amd64_x32_sys_getsockname:
582     return gdb_sys_getsockname;
583 
584   case amd64_sys_getpeername:
585   case amd64_x32_sys_getpeername:
586     return gdb_sys_getpeername;
587 
588   case amd64_sys_socketpair:
589   case amd64_x32_sys_socketpair:
590     return gdb_sys_socketpair;
591 
592   case amd64_sys_setsockopt:
593   case amd64_x32_sys_setsockopt:
594     return gdb_sys_setsockopt;
595 
596   case amd64_sys_getsockopt:
597   case amd64_x32_sys_getsockopt:
598     return gdb_sys_getsockopt;
599 
600   case amd64_sys_clone:
601   case amd64_x32_sys_clone:
602     return gdb_sys_clone;
603 
604   case amd64_sys_fork:
605   case amd64_x32_sys_fork:
606     return gdb_sys_fork;
607 
608   case amd64_sys_vfork:
609   case amd64_x32_sys_vfork:
610     return gdb_sys_vfork;
611 
612   case amd64_sys_execve:
613   case amd64_x32_sys_execve:
614     return gdb_sys_execve;
615 
616   case amd64_sys_exit:
617   case amd64_x32_sys_exit:
618     return gdb_sys_exit;
619 
620   case amd64_sys_wait4:
621   case amd64_x32_sys_wait4:
622     return gdb_sys_wait4;
623 
624   case amd64_sys_kill:
625   case amd64_x32_sys_kill:
626     return gdb_sys_kill;
627 
628   case amd64_sys_uname:
629   case amd64_x32_sys_uname:
630     return gdb_sys_uname;
631 
632   case amd64_sys_semget:
633   case amd64_x32_sys_semget:
634     return gdb_sys_semget;
635 
636   case amd64_sys_semop:
637   case amd64_x32_sys_semop:
638     return gdb_sys_semop;
639 
640   case amd64_sys_semctl:
641   case amd64_x32_sys_semctl:
642     return gdb_sys_semctl;
643 
644   case amd64_sys_shmdt:
645   case amd64_x32_sys_shmdt:
646     return gdb_sys_shmdt;
647 
648   case amd64_sys_msgget:
649   case amd64_x32_sys_msgget:
650     return gdb_sys_msgget;
651 
652   case amd64_sys_msgsnd:
653   case amd64_x32_sys_msgsnd:
654     return gdb_sys_msgsnd;
655 
656   case amd64_sys_msgrcv:
657   case amd64_x32_sys_msgrcv:
658     return gdb_sys_msgrcv;
659 
660   case amd64_sys_msgctl:
661   case amd64_x32_sys_msgctl:
662     return gdb_sys_msgctl;
663 
664   case amd64_sys_fcntl:
665   case amd64_x32_sys_fcntl:
666     return gdb_sys_fcntl;
667 
668   case amd64_sys_flock:
669   case amd64_x32_sys_flock:
670     return gdb_sys_flock;
671 
672   case amd64_sys_fsync:
673   case amd64_x32_sys_fsync:
674     return gdb_sys_fsync;
675 
676   case amd64_sys_fdatasync:
677   case amd64_x32_sys_fdatasync:
678     return gdb_sys_fdatasync;
679 
680   case amd64_sys_truncate:
681   case amd64_x32_sys_truncate:
682     return gdb_sys_truncate;
683 
684   case amd64_sys_ftruncate:
685   case amd64_x32_sys_ftruncate:
686     return gdb_sys_ftruncate;
687 
688   case amd64_sys_getdents:
689   case amd64_x32_sys_getdents:
690     return gdb_sys_getdents;
691 
692   case amd64_sys_getcwd:
693   case amd64_x32_sys_getcwd:
694     return gdb_sys_getcwd;
695 
696   case amd64_sys_chdir:
697   case amd64_x32_sys_chdir:
698     return gdb_sys_chdir;
699 
700   case amd64_sys_fchdir:
701   case amd64_x32_sys_fchdir:
702     return gdb_sys_fchdir;
703 
704   case amd64_sys_rename:
705   case amd64_x32_sys_rename:
706     return gdb_sys_rename;
707 
708   case amd64_sys_mkdir:
709   case amd64_x32_sys_mkdir:
710     return gdb_sys_mkdir;
711 
712   case amd64_sys_rmdir:
713   case amd64_x32_sys_rmdir:
714     return gdb_sys_rmdir;
715 
716   case amd64_sys_creat:
717   case amd64_x32_sys_creat:
718     return gdb_sys_creat;
719 
720   case amd64_sys_link:
721   case amd64_x32_sys_link:
722     return gdb_sys_link;
723 
724   case amd64_sys_unlink:
725   case amd64_x32_sys_unlink:
726     return gdb_sys_unlink;
727 
728   case amd64_sys_symlink:
729   case amd64_x32_sys_symlink:
730     return gdb_sys_symlink;
731 
732   case amd64_sys_readlink:
733   case amd64_x32_sys_readlink:
734     return gdb_sys_readlink;
735 
736   case amd64_sys_chmod:
737   case amd64_x32_sys_chmod:
738     return gdb_sys_chmod;
739 
740   case amd64_sys_fchmod:
741   case amd64_x32_sys_fchmod:
742     return gdb_sys_fchmod;
743 
744   case amd64_sys_chown:
745   case amd64_x32_sys_chown:
746     return gdb_sys_chown;
747 
748   case amd64_sys_fchown:
749   case amd64_x32_sys_fchown:
750     return gdb_sys_fchown;
751 
752   case amd64_sys_lchown:
753   case amd64_x32_sys_lchown:
754     return gdb_sys_lchown;
755 
756   case amd64_sys_umask:
757   case amd64_x32_sys_umask:
758     return gdb_sys_umask;
759 
760   case amd64_sys_gettimeofday:
761   case amd64_x32_sys_gettimeofday:
762     return gdb_sys_gettimeofday;
763 
764   case amd64_sys_getrlimit:
765   case amd64_x32_sys_getrlimit:
766     return gdb_sys_getrlimit;
767 
768   case amd64_sys_getrusage:
769   case amd64_x32_sys_getrusage:
770     return gdb_sys_getrusage;
771 
772   case amd64_sys_sysinfo:
773   case amd64_x32_sys_sysinfo:
774     return gdb_sys_sysinfo;
775 
776   case amd64_sys_times:
777   case amd64_x32_sys_times:
778     return gdb_sys_times;
779 
780   case amd64_sys_ptrace:
781   case amd64_x32_sys_ptrace:
782     return gdb_sys_ptrace;
783 
784   case amd64_sys_getuid:
785   case amd64_x32_sys_getuid:
786     return gdb_sys_getuid;
787 
788   case amd64_sys_syslog:
789   case amd64_x32_sys_syslog:
790     return gdb_sys_syslog;
791 
792   case amd64_sys_getgid:
793   case amd64_x32_sys_getgid:
794     return gdb_sys_getgid;
795 
796   case amd64_sys_setuid:
797   case amd64_x32_sys_setuid:
798     return gdb_sys_setuid;
799 
800   case amd64_sys_setgid:
801   case amd64_x32_sys_setgid:
802     return gdb_sys_setgid;
803 
804   case amd64_sys_geteuid:
805   case amd64_x32_sys_geteuid:
806     return gdb_sys_geteuid;
807 
808   case amd64_sys_getegid:
809   case amd64_x32_sys_getegid:
810     return gdb_sys_getegid;
811 
812   case amd64_sys_setpgid:
813   case amd64_x32_sys_setpgid:
814     return gdb_sys_setpgid;
815 
816   case amd64_sys_getppid:
817   case amd64_x32_sys_getppid:
818     return gdb_sys_getppid;
819 
820   case amd64_sys_getpgrp:
821   case amd64_x32_sys_getpgrp:
822     return gdb_sys_getpgrp;
823 
824   case amd64_sys_setsid:
825   case amd64_x32_sys_setsid:
826     return gdb_sys_setsid;
827 
828   case amd64_sys_setreuid:
829   case amd64_x32_sys_setreuid:
830     return gdb_sys_setreuid;
831 
832   case amd64_sys_setregid:
833   case amd64_x32_sys_setregid:
834     return gdb_sys_setregid;
835 
836   case amd64_sys_getgroups:
837   case amd64_x32_sys_getgroups:
838     return gdb_sys_getgroups;
839 
840   case amd64_sys_setgroups:
841   case amd64_x32_sys_setgroups:
842     return gdb_sys_setgroups;
843 
844   case amd64_sys_setresuid:
845   case amd64_x32_sys_setresuid:
846     return gdb_sys_setresuid;
847 
848   case amd64_sys_getresuid:
849   case amd64_x32_sys_getresuid:
850     return gdb_sys_getresuid;
851 
852   case amd64_sys_setresgid:
853   case amd64_x32_sys_setresgid:
854     return gdb_sys_setresgid;
855 
856   case amd64_sys_getresgid:
857   case amd64_x32_sys_getresgid:
858     return gdb_sys_getresgid;
859 
860   case amd64_sys_getpgid:
861   case amd64_x32_sys_getpgid:
862     return gdb_sys_getpgid;
863 
864   case amd64_sys_setfsuid:
865   case amd64_x32_sys_setfsuid:
866     return gdb_sys_setfsuid;
867 
868   case amd64_sys_setfsgid:
869   case amd64_x32_sys_setfsgid:
870     return gdb_sys_setfsgid;
871 
872   case amd64_sys_getsid:
873   case amd64_x32_sys_getsid:
874     return gdb_sys_getsid;
875 
876   case amd64_sys_capget:
877   case amd64_x32_sys_capget:
878     return gdb_sys_capget;
879 
880   case amd64_sys_capset:
881   case amd64_x32_sys_capset:
882     return gdb_sys_capset;
883 
884   case amd64_sys_rt_sigpending:
885   case amd64_x32_sys_rt_sigpending:
886     return gdb_sys_rt_sigpending;
887 
888   case amd64_sys_rt_sigtimedwait:
889   case amd64_x32_sys_rt_sigtimedwait:
890     return gdb_sys_rt_sigtimedwait;
891 
892   case amd64_sys_rt_sigqueueinfo:
893   case amd64_x32_sys_rt_sigqueueinfo:
894     return gdb_sys_rt_sigqueueinfo;
895 
896   case amd64_sys_rt_sigsuspend:
897   case amd64_x32_sys_rt_sigsuspend:
898     return gdb_sys_rt_sigsuspend;
899 
900   case amd64_sys_sigaltstack:
901   case amd64_x32_sys_sigaltstack:
902     return gdb_sys_sigaltstack;
903 
904   case amd64_sys_utime:
905   case amd64_x32_sys_utime:
906     return gdb_sys_utime;
907 
908   case amd64_sys_mknod:
909   case amd64_x32_sys_mknod:
910     return gdb_sys_mknod;
911 
912   case amd64_sys_personality:
913   case amd64_x32_sys_personality:
914     return gdb_sys_personality;
915 
916   case amd64_sys_ustat:
917   case amd64_x32_sys_ustat:
918     return gdb_sys_ustat;
919 
920   case amd64_sys_statfs:
921   case amd64_x32_sys_statfs:
922     return gdb_sys_statfs;
923 
924   case amd64_sys_fstatfs:
925   case amd64_x32_sys_fstatfs:
926     return gdb_sys_fstatfs;
927 
928   case amd64_sys_sysfs:
929   case amd64_x32_sys_sysfs:
930     return gdb_sys_sysfs;
931 
932   case amd64_sys_getpriority:
933   case amd64_x32_sys_getpriority:
934     return gdb_sys_getpriority;
935 
936   case amd64_sys_setpriority:
937   case amd64_x32_sys_setpriority:
938     return gdb_sys_setpriority;
939 
940   case amd64_sys_sched_setparam:
941   case amd64_x32_sys_sched_setparam:
942     return gdb_sys_sched_setparam;
943 
944   case amd64_sys_sched_getparam:
945   case amd64_x32_sys_sched_getparam:
946     return gdb_sys_sched_getparam;
947 
948   case amd64_sys_sched_setscheduler:
949   case amd64_x32_sys_sched_setscheduler:
950     return gdb_sys_sched_setscheduler;
951 
952   case amd64_sys_sched_getscheduler:
953   case amd64_x32_sys_sched_getscheduler:
954     return gdb_sys_sched_getscheduler;
955 
956   case amd64_sys_sched_get_priority_max:
957   case amd64_x32_sys_sched_get_priority_max:
958     return gdb_sys_sched_get_priority_max;
959 
960   case amd64_sys_sched_get_priority_min:
961   case amd64_x32_sys_sched_get_priority_min:
962     return gdb_sys_sched_get_priority_min;
963 
964   case amd64_sys_sched_rr_get_interval:
965   case amd64_x32_sys_sched_rr_get_interval:
966     return gdb_sys_sched_rr_get_interval;
967 
968   case amd64_sys_mlock:
969   case amd64_x32_sys_mlock:
970     return gdb_sys_mlock;
971 
972   case amd64_sys_munlock:
973   case amd64_x32_sys_munlock:
974     return gdb_sys_munlock;
975 
976   case amd64_sys_mlockall:
977   case amd64_x32_sys_mlockall:
978     return gdb_sys_mlockall;
979 
980   case amd64_sys_munlockall:
981   case amd64_x32_sys_munlockall:
982     return gdb_sys_munlockall;
983 
984   case amd64_sys_vhangup:
985   case amd64_x32_sys_vhangup:
986     return gdb_sys_vhangup;
987 
988   case amd64_sys_modify_ldt:
989   case amd64_x32_sys_modify_ldt:
990     return gdb_sys_modify_ldt;
991 
992   case amd64_sys_pivot_root:
993   case amd64_x32_sys_pivot_root:
994     return gdb_sys_pivot_root;
995 
996   case amd64_sys_sysctl:
997   case amd64_x32_sys_sysctl:
998     return gdb_sys_sysctl;
999 
1000   case amd64_sys_prctl:
1001   case amd64_x32_sys_prctl:
1002     return gdb_sys_prctl;
1003 
1004   case amd64_sys_arch_prctl:
1005   case amd64_x32_sys_arch_prctl:
1006     return gdb_sys_no_syscall;	/* Note */
1007 
1008   case amd64_sys_adjtimex:
1009   case amd64_x32_sys_adjtimex:
1010     return gdb_sys_adjtimex;
1011 
1012   case amd64_sys_setrlimit:
1013   case amd64_x32_sys_setrlimit:
1014     return gdb_sys_setrlimit;
1015 
1016   case amd64_sys_chroot:
1017   case amd64_x32_sys_chroot:
1018     return gdb_sys_chroot;
1019 
1020   case amd64_sys_sync:
1021   case amd64_x32_sys_sync:
1022     return gdb_sys_sync;
1023 
1024   case amd64_sys_acct:
1025   case amd64_x32_sys_acct:
1026     return gdb_sys_acct;
1027 
1028   case amd64_sys_settimeofday:
1029   case amd64_x32_sys_settimeofday:
1030     return gdb_sys_settimeofday;
1031 
1032   case amd64_sys_mount:
1033   case amd64_x32_sys_mount:
1034     return gdb_sys_mount;
1035 
1036   case amd64_sys_umount:
1037   case amd64_x32_sys_umount:
1038     return gdb_sys_umount;
1039 
1040   case amd64_sys_swapon:
1041   case amd64_x32_sys_swapon:
1042     return gdb_sys_swapon;
1043 
1044   case amd64_sys_swapoff:
1045   case amd64_x32_sys_swapoff:
1046     return gdb_sys_swapoff;
1047 
1048   case amd64_sys_reboot:
1049   case amd64_x32_sys_reboot:
1050     return gdb_sys_reboot;
1051 
1052   case amd64_sys_sethostname:
1053   case amd64_x32_sys_sethostname:
1054     return gdb_sys_sethostname;
1055 
1056   case amd64_sys_setdomainname:
1057   case amd64_x32_sys_setdomainname:
1058     return gdb_sys_setdomainname;
1059 
1060   case amd64_sys_iopl:
1061   case amd64_x32_sys_iopl:
1062     return gdb_sys_iopl;
1063 
1064   case amd64_sys_ioperm:
1065   case amd64_x32_sys_ioperm:
1066     return gdb_sys_ioperm;
1067 
1068   case amd64_sys_init_module:
1069   case amd64_x32_sys_init_module:
1070     return gdb_sys_init_module;
1071 
1072   case amd64_sys_delete_module:
1073   case amd64_x32_sys_delete_module:
1074     return gdb_sys_delete_module;
1075 
1076   case amd64_sys_quotactl:
1077   case amd64_x32_sys_quotactl:
1078     return gdb_sys_quotactl;
1079 
1080   case amd64_sys_nfsservctl:
1081     return gdb_sys_nfsservctl;
1082 
1083   case amd64_sys_gettid:
1084   case amd64_x32_sys_gettid:
1085     return gdb_sys_gettid;
1086 
1087   case amd64_sys_readahead:
1088   case amd64_x32_sys_readahead:
1089     return gdb_sys_readahead;
1090 
1091   case amd64_sys_setxattr:
1092   case amd64_x32_sys_setxattr:
1093     return gdb_sys_setxattr;
1094 
1095   case amd64_sys_lsetxattr:
1096   case amd64_x32_sys_lsetxattr:
1097     return gdb_sys_lsetxattr;
1098 
1099   case amd64_sys_fsetxattr:
1100   case amd64_x32_sys_fsetxattr:
1101     return gdb_sys_fsetxattr;
1102 
1103   case amd64_sys_getxattr:
1104   case amd64_x32_sys_getxattr:
1105     return gdb_sys_getxattr;
1106 
1107   case amd64_sys_lgetxattr:
1108   case amd64_x32_sys_lgetxattr:
1109     return gdb_sys_lgetxattr;
1110 
1111   case amd64_sys_fgetxattr:
1112   case amd64_x32_sys_fgetxattr:
1113     return gdb_sys_fgetxattr;
1114 
1115   case amd64_sys_listxattr:
1116   case amd64_x32_sys_listxattr:
1117     return gdb_sys_listxattr;
1118 
1119   case amd64_sys_llistxattr:
1120   case amd64_x32_sys_llistxattr:
1121     return gdb_sys_llistxattr;
1122 
1123   case amd64_sys_flistxattr:
1124   case amd64_x32_sys_flistxattr:
1125     return gdb_sys_flistxattr;
1126 
1127   case amd64_sys_removexattr:
1128   case amd64_x32_sys_removexattr:
1129     return gdb_sys_removexattr;
1130 
1131   case amd64_sys_lremovexattr:
1132   case amd64_x32_sys_lremovexattr:
1133     return gdb_sys_lremovexattr;
1134 
1135   case amd64_sys_fremovexattr:
1136   case amd64_x32_sys_fremovexattr:
1137     return gdb_sys_fremovexattr;
1138 
1139   case amd64_sys_tkill:
1140   case amd64_x32_sys_tkill:
1141     return gdb_sys_tkill;
1142 
1143   case amd64_sys_time:
1144   case amd64_x32_sys_time:
1145     return gdb_sys_time;
1146 
1147   case amd64_sys_futex:
1148   case amd64_x32_sys_futex:
1149     return gdb_sys_futex;
1150 
1151   case amd64_sys_sched_setaffinity:
1152   case amd64_x32_sys_sched_setaffinity:
1153     return gdb_sys_sched_setaffinity;
1154 
1155   case amd64_sys_sched_getaffinity:
1156   case amd64_x32_sys_sched_getaffinity:
1157     return gdb_sys_sched_getaffinity;
1158 
1159   case amd64_sys_io_setup:
1160   case amd64_x32_sys_io_setup:
1161     return gdb_sys_io_setup;
1162 
1163   case amd64_sys_io_destroy:
1164   case amd64_x32_sys_io_destroy:
1165     return gdb_sys_io_destroy;
1166 
1167   case amd64_sys_io_getevents:
1168   case amd64_x32_sys_io_getevents:
1169     return gdb_sys_io_getevents;
1170 
1171   case amd64_sys_io_submit:
1172   case amd64_x32_sys_io_submit:
1173     return gdb_sys_io_submit;
1174 
1175   case amd64_sys_io_cancel:
1176   case amd64_x32_sys_io_cancel:
1177     return gdb_sys_io_cancel;
1178 
1179   case amd64_sys_lookup_dcookie:
1180   case amd64_x32_sys_lookup_dcookie:
1181     return gdb_sys_lookup_dcookie;
1182 
1183   case amd64_sys_epoll_create:
1184   case amd64_x32_sys_epoll_create:
1185     return gdb_sys_epoll_create;
1186 
1187   case amd64_sys_remap_file_pages:
1188   case amd64_x32_sys_remap_file_pages:
1189     return gdb_sys_remap_file_pages;
1190 
1191   case amd64_sys_getdents64:
1192   case amd64_x32_sys_getdents64:
1193     return gdb_sys_getdents64;
1194 
1195   case amd64_sys_set_tid_address:
1196   case amd64_x32_sys_set_tid_address:
1197     return gdb_sys_set_tid_address;
1198 
1199   case amd64_sys_restart_syscall:
1200   case amd64_x32_sys_restart_syscall:
1201     return gdb_sys_restart_syscall;
1202 
1203   case amd64_sys_semtimedop:
1204   case amd64_x32_sys_semtimedop:
1205     return gdb_sys_semtimedop;
1206 
1207   case amd64_sys_fadvise64:
1208   case amd64_x32_sys_fadvise64:
1209     return gdb_sys_fadvise64;
1210 
1211   case amd64_sys_timer_create:
1212   case amd64_x32_sys_timer_create:
1213     return gdb_sys_timer_create;
1214 
1215   case amd64_sys_timer_settime:
1216   case amd64_x32_sys_timer_settime:
1217     return gdb_sys_timer_settime;
1218 
1219   case amd64_sys_timer_gettime:
1220   case amd64_x32_sys_timer_gettime:
1221     return gdb_sys_timer_gettime;
1222 
1223   case amd64_sys_timer_getoverrun:
1224   case amd64_x32_sys_timer_getoverrun:
1225     return gdb_sys_timer_getoverrun;
1226 
1227   case amd64_sys_timer_delete:
1228   case amd64_x32_sys_timer_delete:
1229     return gdb_sys_timer_delete;
1230 
1231   case amd64_sys_clock_settime:
1232   case amd64_x32_sys_clock_settime:
1233     return gdb_sys_clock_settime;
1234 
1235   case amd64_sys_clock_gettime:
1236   case amd64_x32_sys_clock_gettime:
1237     return gdb_sys_clock_gettime;
1238 
1239   case amd64_sys_clock_getres:
1240   case amd64_x32_sys_clock_getres:
1241     return gdb_sys_clock_getres;
1242 
1243   case amd64_sys_clock_nanosleep:
1244   case amd64_x32_sys_clock_nanosleep:
1245     return gdb_sys_clock_nanosleep;
1246 
1247   case amd64_sys_exit_group:
1248   case amd64_x32_sys_exit_group:
1249     return gdb_sys_exit_group;
1250 
1251   case amd64_sys_epoll_wait:
1252   case amd64_x32_sys_epoll_wait:
1253     return gdb_sys_epoll_wait;
1254 
1255   case amd64_sys_epoll_ctl:
1256   case amd64_x32_sys_epoll_ctl:
1257     return gdb_sys_epoll_ctl;
1258 
1259   case amd64_sys_tgkill:
1260   case amd64_x32_sys_tgkill:
1261     return gdb_sys_tgkill;
1262 
1263   case amd64_sys_utimes:
1264   case amd64_x32_sys_utimes:
1265     return gdb_sys_utimes;
1266 
1267   case amd64_sys_mbind:
1268   case amd64_x32_sys_mbind:
1269     return gdb_sys_mbind;
1270 
1271   case amd64_sys_set_mempolicy:
1272   case amd64_x32_sys_set_mempolicy:
1273     return gdb_sys_set_mempolicy;
1274 
1275   case amd64_sys_get_mempolicy:
1276   case amd64_x32_sys_get_mempolicy:
1277     return gdb_sys_get_mempolicy;
1278 
1279   case amd64_sys_mq_open:
1280   case amd64_x32_sys_mq_open:
1281     return gdb_sys_mq_open;
1282 
1283   case amd64_sys_mq_unlink:
1284   case amd64_x32_sys_mq_unlink:
1285     return gdb_sys_mq_unlink;
1286 
1287   case amd64_sys_mq_timedsend:
1288   case amd64_x32_sys_mq_timedsend:
1289     return gdb_sys_mq_timedsend;
1290 
1291   case amd64_sys_mq_timedreceive:
1292   case amd64_x32_sys_mq_timedreceive:
1293     return gdb_sys_mq_timedreceive;
1294 
1295   case amd64_sys_mq_notify:
1296   case amd64_x32_sys_mq_notify:
1297     return gdb_sys_mq_notify;
1298 
1299   case amd64_sys_mq_getsetattr:
1300   case amd64_x32_sys_mq_getsetattr:
1301     return gdb_sys_mq_getsetattr;
1302 
1303   case amd64_sys_kexec_load:
1304   case amd64_x32_sys_kexec_load:
1305     return gdb_sys_kexec_load;
1306 
1307   case amd64_sys_waitid:
1308   case amd64_x32_sys_waitid:
1309     return gdb_sys_waitid;
1310 
1311   case amd64_sys_add_key:
1312   case amd64_x32_sys_add_key:
1313     return gdb_sys_add_key;
1314 
1315   case amd64_sys_request_key:
1316   case amd64_x32_sys_request_key:
1317     return gdb_sys_request_key;
1318 
1319   case amd64_sys_keyctl:
1320   case amd64_x32_sys_keyctl:
1321     return gdb_sys_keyctl;
1322 
1323   case amd64_sys_ioprio_set:
1324   case amd64_x32_sys_ioprio_set:
1325     return gdb_sys_ioprio_set;
1326 
1327   case amd64_sys_ioprio_get:
1328   case amd64_x32_sys_ioprio_get:
1329     return gdb_sys_ioprio_get;
1330 
1331   case amd64_sys_inotify_init:
1332   case amd64_x32_sys_inotify_init:
1333     return gdb_sys_inotify_init;
1334 
1335   case amd64_sys_inotify_add_watch:
1336   case amd64_x32_sys_inotify_add_watch:
1337     return gdb_sys_inotify_add_watch;
1338 
1339   case amd64_sys_inotify_rm_watch:
1340   case amd64_x32_sys_inotify_rm_watch:
1341     return gdb_sys_inotify_rm_watch;
1342 
1343   case amd64_sys_migrate_pages:
1344   case amd64_x32_sys_migrate_pages:
1345     return gdb_sys_migrate_pages;
1346 
1347   case amd64_sys_openat:
1348   case amd64_x32_sys_openat:
1349     return gdb_sys_openat;
1350 
1351   case amd64_sys_mkdirat:
1352   case amd64_x32_sys_mkdirat:
1353     return gdb_sys_mkdirat;
1354 
1355   case amd64_sys_mknodat:
1356   case amd64_x32_sys_mknodat:
1357     return gdb_sys_mknodat;
1358 
1359   case amd64_sys_fchownat:
1360   case amd64_x32_sys_fchownat:
1361     return gdb_sys_fchownat;
1362 
1363   case amd64_sys_futimesat:
1364   case amd64_x32_sys_futimesat:
1365     return gdb_sys_futimesat;
1366 
1367   case amd64_sys_newfstatat:
1368   case amd64_x32_sys_newfstatat:
1369     return gdb_sys_newfstatat;
1370 
1371   case amd64_sys_unlinkat:
1372   case amd64_x32_sys_unlinkat:
1373     return gdb_sys_unlinkat;
1374 
1375   case amd64_sys_renameat:
1376   case amd64_x32_sys_renameat:
1377     return gdb_sys_renameat;
1378 
1379   case amd64_sys_linkat:
1380   case amd64_x32_sys_linkat:
1381     return gdb_sys_linkat;
1382 
1383   case amd64_sys_symlinkat:
1384   case amd64_x32_sys_symlinkat:
1385     return gdb_sys_symlinkat;
1386 
1387   case amd64_sys_readlinkat:
1388   case amd64_x32_sys_readlinkat:
1389     return gdb_sys_readlinkat;
1390 
1391   case amd64_sys_fchmodat:
1392   case amd64_x32_sys_fchmodat:
1393     return gdb_sys_fchmodat;
1394 
1395   case amd64_sys_faccessat:
1396   case amd64_x32_sys_faccessat:
1397     return gdb_sys_faccessat;
1398 
1399   case amd64_sys_pselect6:
1400   case amd64_x32_sys_pselect6:
1401     return gdb_sys_pselect6;
1402 
1403   case amd64_sys_ppoll:
1404   case amd64_x32_sys_ppoll:
1405     return gdb_sys_ppoll;
1406 
1407   case amd64_sys_unshare:
1408   case amd64_x32_sys_unshare:
1409     return gdb_sys_unshare;
1410 
1411   case amd64_sys_set_robust_list:
1412   case amd64_x32_sys_set_robust_list:
1413     return gdb_sys_set_robust_list;
1414 
1415   case amd64_sys_get_robust_list:
1416   case amd64_x32_sys_get_robust_list:
1417     return gdb_sys_get_robust_list;
1418 
1419   case amd64_sys_splice:
1420   case amd64_x32_sys_splice:
1421     return gdb_sys_splice;
1422 
1423   case amd64_sys_tee:
1424   case amd64_x32_sys_tee:
1425     return gdb_sys_tee;
1426 
1427   case amd64_sys_sync_file_range:
1428   case amd64_x32_sys_sync_file_range:
1429     return gdb_sys_sync_file_range;
1430 
1431   case amd64_sys_vmsplice:
1432   case amd64_x32_sys_vmsplice:
1433     return gdb_sys_vmsplice;
1434 
1435   case amd64_sys_move_pages:
1436   case amd64_x32_sys_move_pages:
1437     return gdb_sys_move_pages;
1438 
1439   default:
1440     return gdb_sys_no_syscall;
1441   }
1442 }
1443 
1444 /* Parse the arguments of current system call instruction and record
1445    the values of the registers and memory that will be changed into
1446    "record_full_arch_list".  This instruction is "syscall".
1447 
1448    Return -1 if something wrong.  */
1449 
1450 static struct linux_record_tdep amd64_linux_record_tdep;
1451 static struct linux_record_tdep amd64_x32_linux_record_tdep;
1452 
1453 #define RECORD_ARCH_GET_FS	0x1003
1454 #define RECORD_ARCH_GET_GS	0x1004
1455 
1456 static int
1457 amd64_linux_syscall_record_common (struct regcache *regcache,
1458 				   struct linux_record_tdep *linux_record_tdep_p)
1459 {
1460   int ret;
1461   ULONGEST syscall_native;
1462   enum gdb_syscall syscall_gdb = gdb_sys_no_syscall;
1463 
1464   regcache_raw_read_unsigned (regcache, AMD64_RAX_REGNUM, &syscall_native);
1465 
1466   switch (syscall_native)
1467     {
1468     case amd64_sys_rt_sigreturn:
1469     case amd64_x32_sys_rt_sigreturn:
1470       if (amd64_all_but_ip_registers_record (regcache))
1471         return -1;
1472       return 0;
1473       break;
1474 
1475     case amd64_sys_arch_prctl:
1476     case amd64_x32_sys_arch_prctl:
1477       {
1478 	ULONGEST arg3;
1479 	regcache_raw_read_unsigned (regcache, linux_record_tdep_p->arg3,
1480 				    &arg3);
1481 	if (arg3 == RECORD_ARCH_GET_FS || arg3 == RECORD_ARCH_GET_GS)
1482 	  {
1483 	    CORE_ADDR addr;
1484 
1485 	    regcache_raw_read_unsigned (regcache,
1486 					linux_record_tdep_p->arg2,
1487 					&addr);
1488 	    if (record_full_arch_list_add_mem
1489 		(addr, linux_record_tdep_p->size_ulong))
1490 	      return -1;
1491 	  }
1492 	goto record_regs;
1493       }
1494       break;
1495     }
1496 
1497   syscall_gdb
1498     = amd64_canonicalize_syscall ((enum amd64_syscall) syscall_native);
1499 
1500   if (syscall_gdb == gdb_sys_no_syscall)
1501     {
1502       printf_unfiltered (_("Process record and replay target doesn't "
1503                            "support syscall number %s\n"),
1504 			 pulongest (syscall_native));
1505       return -1;
1506     }
1507   else
1508     {
1509       ret = record_linux_system_call (syscall_gdb, regcache,
1510                                       linux_record_tdep_p);
1511       if (ret)
1512         return ret;
1513     }
1514 
1515  record_regs:
1516   /* Record the return value of the system call.  */
1517   if (record_full_arch_list_add_reg (regcache, AMD64_RCX_REGNUM))
1518     return -1;
1519   if (record_full_arch_list_add_reg (regcache, AMD64_R11_REGNUM))
1520     return -1;
1521 
1522   return 0;
1523 }
1524 
1525 static int
1526 amd64_linux_syscall_record (struct regcache *regcache)
1527 {
1528   return amd64_linux_syscall_record_common (regcache,
1529 					    &amd64_linux_record_tdep);
1530 }
1531 
1532 static int
1533 amd64_x32_linux_syscall_record (struct regcache *regcache)
1534 {
1535   return amd64_linux_syscall_record_common (regcache,
1536 					    &amd64_x32_linux_record_tdep);
1537 }
1538 
1539 #define AMD64_LINUX_redzone    128
1540 #define AMD64_LINUX_xstate     512
1541 #define AMD64_LINUX_frame_size 560
1542 
1543 static int
1544 amd64_linux_record_signal (struct gdbarch *gdbarch,
1545                            struct regcache *regcache,
1546                            enum gdb_signal signal)
1547 {
1548   ULONGEST rsp;
1549 
1550   if (amd64_all_but_ip_registers_record (regcache))
1551     return -1;
1552 
1553   if (record_full_arch_list_add_reg (regcache, AMD64_RIP_REGNUM))
1554     return -1;
1555 
1556   /* Record the change in the stack.  */
1557   regcache_raw_read_unsigned (regcache, AMD64_RSP_REGNUM, &rsp);
1558   /* redzone
1559      sp -= 128; */
1560   rsp -= AMD64_LINUX_redzone;
1561   /* This is for xstate.
1562      sp -= sizeof (struct _fpstate);  */
1563   rsp -= AMD64_LINUX_xstate;
1564   /* This is for frame_size.
1565      sp -= sizeof (struct rt_sigframe);  */
1566   rsp -= AMD64_LINUX_frame_size;
1567   if (record_full_arch_list_add_mem (rsp, AMD64_LINUX_redzone
1568                                      + AMD64_LINUX_xstate
1569                                      + AMD64_LINUX_frame_size))
1570     return -1;
1571 
1572   if (record_full_arch_list_add_end ())
1573     return -1;
1574 
1575   return 0;
1576 }
1577 
1578 /* Get Linux/x86 target description from core dump.  */
1579 
1580 static const struct target_desc *
1581 amd64_linux_core_read_description (struct gdbarch *gdbarch,
1582 				  struct target_ops *target,
1583 				  bfd *abfd)
1584 {
1585   /* Linux/x86-64.  */
1586   uint64_t xcr0 = i386_linux_core_read_xcr0 (abfd);
1587 
1588   switch (xcr0 & X86_XSTATE_ALL_MASK)
1589     {
1590     case X86_XSTATE_AVX_MPX_AVX512_PKU_MASK:
1591       if (gdbarch_ptr_bit (gdbarch) == 32)
1592 	  /* No MPX on x32, fallback to AVX-AVX512.  */
1593 	return tdesc_x32_avx_avx512_linux;
1594       else
1595 	return tdesc_amd64_avx_mpx_avx512_pku_linux;
1596     case X86_XSTATE_AVX_AVX512_MASK:
1597       if (gdbarch_ptr_bit (gdbarch) == 32)
1598 	return tdesc_x32_avx_avx512_linux;
1599       else
1600 	return tdesc_amd64_avx_avx512_linux;
1601     case X86_XSTATE_MPX_MASK:
1602       if (gdbarch_ptr_bit (gdbarch) == 32)
1603 	  /* No MPX on x32, fallback to AVX-AVX512.  */
1604 	return tdesc_x32_avx_linux;
1605       else
1606 	return tdesc_amd64_mpx_linux;
1607     case X86_XSTATE_AVX_MPX_MASK:
1608       if (gdbarch_ptr_bit (gdbarch) == 32)
1609 	  /* No MPX on x32, fallback to AVX-AVX512.  */
1610 	return tdesc_x32_avx_linux;
1611       else
1612 	return tdesc_amd64_avx_mpx_linux;
1613     case X86_XSTATE_AVX_MASK:
1614       if (gdbarch_ptr_bit (gdbarch) == 32)
1615 	return tdesc_x32_avx_linux;
1616       else
1617 	return tdesc_amd64_avx_linux;
1618     default:
1619       if (gdbarch_ptr_bit (gdbarch) == 32)
1620 	return tdesc_x32_linux;
1621       else
1622 	return tdesc_amd64_linux;
1623     }
1624 }
1625 
1626 /* Similar to amd64_supply_fpregset, but use XSAVE extended state.  */
1627 
1628 static void
1629 amd64_linux_supply_xstateregset (const struct regset *regset,
1630 				 struct regcache *regcache, int regnum,
1631 				 const void *xstateregs, size_t len)
1632 {
1633   amd64_supply_xsave (regcache, regnum, xstateregs);
1634 }
1635 
1636 /* Similar to amd64_collect_fpregset, but use XSAVE extended state.  */
1637 
1638 static void
1639 amd64_linux_collect_xstateregset (const struct regset *regset,
1640 				  const struct regcache *regcache,
1641 				  int regnum, void *xstateregs, size_t len)
1642 {
1643   amd64_collect_xsave (regcache, regnum, xstateregs, 1);
1644 }
1645 
1646 static const struct regset amd64_linux_xstateregset =
1647   {
1648     NULL,
1649     amd64_linux_supply_xstateregset,
1650     amd64_linux_collect_xstateregset
1651   };
1652 
1653 /* Iterate over core file register note sections.  */
1654 
1655 static void
1656 amd64_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
1657 					  iterate_over_regset_sections_cb *cb,
1658 					  void *cb_data,
1659 					  const struct regcache *regcache)
1660 {
1661   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
1662 
1663   cb (".reg", 27 * 8, &i386_gregset, NULL, cb_data);
1664   cb (".reg2", 512, &amd64_fpregset, NULL, cb_data);
1665   cb (".reg-xstate",  X86_XSTATE_SIZE (tdep->xcr0),
1666       &amd64_linux_xstateregset, "XSAVE extended state", cb_data);
1667 }
1668 
1669 /* The instruction sequences used in x86_64 machines for a
1670    disabled is-enabled probe.  */
1671 
1672 const gdb_byte amd64_dtrace_disabled_probe_sequence_1[] = {
1673   /* xor %rax, %rax */  0x48, 0x33, 0xc0,
1674   /* nop            */  0x90,
1675   /* nop            */  0x90
1676 };
1677 
1678 const gdb_byte amd64_dtrace_disabled_probe_sequence_2[] = {
1679   /* xor %rax, %rax */  0x48, 0x33, 0xc0,
1680   /* ret            */  0xc3,
1681   /* nop            */  0x90
1682 };
1683 
1684 /* The instruction sequence used in x86_64 machines for enabling a
1685    DTrace is-enabled probe.  */
1686 
1687 const gdb_byte amd64_dtrace_enable_probe_sequence[] = {
1688   /* mov $0x1, %eax */ 0xb8, 0x01, 0x00, 0x00, 0x00
1689 };
1690 
1691 /* The instruction sequence used in x86_64 machines for disabling a
1692    DTrace is-enabled probe.  */
1693 
1694 const gdb_byte amd64_dtrace_disable_probe_sequence[] = {
1695   /* xor %rax, %rax; nop; nop */ 0x48, 0x33, 0xC0, 0x90, 0x90
1696 };
1697 
1698 /* Implementation of `gdbarch_dtrace_probe_is_enabled', as defined in
1699    gdbarch.h.  */
1700 
1701 static int
1702 amd64_dtrace_probe_is_enabled (struct gdbarch *gdbarch, CORE_ADDR addr)
1703 {
1704   gdb_byte buf[5];
1705 
1706   /* This function returns 1 if the instructions at ADDR do _not_
1707      follow any of the amd64_dtrace_disabled_probe_sequence_*
1708      patterns.
1709 
1710      Note that ADDR is offset 3 bytes from the beginning of these
1711      sequences.  */
1712 
1713   read_code (addr - 3, buf, 5);
1714   return (memcmp (buf, amd64_dtrace_disabled_probe_sequence_1, 5) != 0
1715 	  && memcmp (buf, amd64_dtrace_disabled_probe_sequence_2, 5) != 0);
1716 }
1717 
1718 /* Implementation of `gdbarch_dtrace_enable_probe', as defined in
1719    gdbarch.h.  */
1720 
1721 static void
1722 amd64_dtrace_enable_probe (struct gdbarch *gdbarch, CORE_ADDR addr)
1723 {
1724   /* Note also that ADDR is offset 3 bytes from the beginning of
1725      amd64_dtrace_enable_probe_sequence.  */
1726 
1727   write_memory (addr - 3, amd64_dtrace_enable_probe_sequence, 5);
1728 }
1729 
1730 /* Implementation of `gdbarch_dtrace_disable_probe', as defined in
1731    gdbarch.h.  */
1732 
1733 static void
1734 amd64_dtrace_disable_probe (struct gdbarch *gdbarch, CORE_ADDR addr)
1735 {
1736   /* Note also that ADDR is offset 3 bytes from the beginning of
1737      amd64_dtrace_disable_probe_sequence.  */
1738 
1739   write_memory (addr - 3, amd64_dtrace_disable_probe_sequence, 5);
1740 }
1741 
1742 /* Implementation of `gdbarch_dtrace_parse_probe_argument', as defined
1743    in gdbarch.h.  */
1744 
1745 static void
1746 amd64_dtrace_parse_probe_argument (struct gdbarch *gdbarch,
1747 				   struct parser_state *pstate,
1748 				   int narg)
1749 {
1750   struct stoken str;
1751 
1752   /* DTrace probe arguments can be found on the ABI-defined places for
1753      regular arguments at the current PC.  The probe abstraction
1754      currently supports up to 12 arguments for probes.  */
1755 
1756   if (narg < 6)
1757     {
1758       static const int arg_reg_map[6] =
1759 	{
1760 	  AMD64_RDI_REGNUM,  /* Arg 1.  */
1761 	  AMD64_RSI_REGNUM,  /* Arg 2.  */
1762 	  AMD64_RDX_REGNUM,  /* Arg 3.  */
1763 	  AMD64_RCX_REGNUM,  /* Arg 4.  */
1764 	  AMD64_R8_REGNUM,   /* Arg 5.  */
1765 	  AMD64_R9_REGNUM    /* Arg 6.  */
1766 	};
1767       int regno = arg_reg_map[narg];
1768       const char *regname = user_reg_map_regnum_to_name (gdbarch, regno);
1769 
1770       write_exp_elt_opcode (pstate, OP_REGISTER);
1771       str.ptr = regname;
1772       str.length = strlen (regname);
1773       write_exp_string (pstate, str);
1774       write_exp_elt_opcode (pstate, OP_REGISTER);
1775     }
1776   else
1777     {
1778       /* Additional arguments are passed on the stack.  */
1779       const char *regname = user_reg_map_regnum_to_name (gdbarch, AMD64_RSP_REGNUM);
1780 
1781       /* Displacement.  */
1782       write_exp_elt_opcode (pstate, OP_LONG);
1783       write_exp_elt_type (pstate, builtin_type (gdbarch)->builtin_long);
1784       write_exp_elt_longcst (pstate, narg - 6);
1785       write_exp_elt_opcode (pstate, OP_LONG);
1786 
1787       /* Register: SP.  */
1788       write_exp_elt_opcode (pstate, OP_REGISTER);
1789       str.ptr = regname;
1790       str.length = strlen (regname);
1791       write_exp_string (pstate, str);
1792       write_exp_elt_opcode (pstate, OP_REGISTER);
1793 
1794       write_exp_elt_opcode (pstate, BINOP_ADD);
1795 
1796       /* Cast to long. */
1797       write_exp_elt_opcode (pstate, UNOP_CAST);
1798       write_exp_elt_type (pstate,
1799 			  lookup_pointer_type (builtin_type (gdbarch)->builtin_long));
1800       write_exp_elt_opcode (pstate, UNOP_CAST);
1801 
1802       write_exp_elt_opcode (pstate, UNOP_IND);
1803     }
1804 }
1805 
1806 static void
1807 amd64_linux_init_abi_common(struct gdbarch_info info, struct gdbarch *gdbarch)
1808 {
1809   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
1810 
1811   linux_init_abi (info, gdbarch);
1812 
1813   tdep->sigtramp_p = amd64_linux_sigtramp_p;
1814   tdep->sigcontext_addr = amd64_linux_sigcontext_addr;
1815   tdep->sc_reg_offset = amd64_linux_sc_reg_offset;
1816   tdep->sc_num_regs = ARRAY_SIZE (amd64_linux_sc_reg_offset);
1817 
1818   tdep->xsave_xcr0_offset = I386_LINUX_XSAVE_XCR0_OFFSET;
1819 
1820   /* Add the %orig_rax register used for syscall restarting.  */
1821   set_gdbarch_write_pc (gdbarch, amd64_linux_write_pc);
1822 
1823   tdep->register_reggroup_p = amd64_linux_register_reggroup_p;
1824 
1825   /* Functions for 'catch syscall'.  */
1826   set_xml_syscall_file_name (gdbarch, XML_SYSCALL_FILENAME_AMD64);
1827   set_gdbarch_get_syscall_number (gdbarch,
1828                                   amd64_linux_get_syscall_number);
1829 
1830   /* Enable TLS support.  */
1831   set_gdbarch_fetch_tls_load_module_address (gdbarch,
1832                                              svr4_fetch_objfile_link_map);
1833 
1834   /* GNU/Linux uses SVR4-style shared libraries.  */
1835   set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
1836 
1837   /* GNU/Linux uses the dynamic linker included in the GNU C Library.  */
1838   set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
1839 
1840   /* Iterate over core file register note sections.  */
1841   set_gdbarch_iterate_over_regset_sections
1842     (gdbarch, amd64_linux_iterate_over_regset_sections);
1843 
1844   set_gdbarch_core_read_description (gdbarch,
1845 				     amd64_linux_core_read_description);
1846 
1847   /* Displaced stepping.  */
1848   set_gdbarch_displaced_step_copy_insn (gdbarch,
1849                                         amd64_displaced_step_copy_insn);
1850   set_gdbarch_displaced_step_fixup (gdbarch, amd64_displaced_step_fixup);
1851   set_gdbarch_displaced_step_free_closure (gdbarch,
1852                                            simple_displaced_step_free_closure);
1853   set_gdbarch_displaced_step_location (gdbarch,
1854                                        linux_displaced_step_location);
1855 
1856   set_gdbarch_process_record (gdbarch, i386_process_record);
1857   set_gdbarch_process_record_signal (gdbarch, amd64_linux_record_signal);
1858 
1859   set_gdbarch_get_siginfo_type (gdbarch, x86_linux_get_siginfo_type);
1860   set_gdbarch_handle_segmentation_fault (gdbarch,
1861 					 i386_linux_handle_segmentation_fault);
1862 }
1863 
1864 static void
1865 amd64_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
1866 {
1867   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
1868   const struct target_desc *tdesc = info.target_desc;
1869   struct tdesc_arch_data *tdesc_data
1870     = (struct tdesc_arch_data *) info.tdep_info;
1871   const struct tdesc_feature *feature;
1872   int valid_p;
1873 
1874   gdb_assert (tdesc_data);
1875 
1876   tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
1877   tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
1878   tdep->sizeof_gregset = 27 * 8;
1879 
1880   amd64_init_abi (info, gdbarch);
1881 
1882   /* Reserve a number for orig_rax.  */
1883   set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS);
1884 
1885   if (! tdesc_has_registers (tdesc))
1886     tdesc = tdesc_amd64_linux;
1887   tdep->tdesc = tdesc;
1888 
1889   feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
1890   if (feature == NULL)
1891     return;
1892 
1893   valid_p = tdesc_numbered_register (feature, tdesc_data,
1894 				     AMD64_LINUX_ORIG_RAX_REGNUM,
1895 				     "orig_rax");
1896   if (!valid_p)
1897     return;
1898 
1899   amd64_linux_init_abi_common (info, gdbarch);
1900 
1901   /* Initialize the amd64_linux_record_tdep.  */
1902   /* These values are the size of the type that will be used in a system
1903      call.  They are obtained from Linux Kernel source.  */
1904   amd64_linux_record_tdep.size_pointer
1905     = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
1906   amd64_linux_record_tdep.size__old_kernel_stat = 32;
1907   amd64_linux_record_tdep.size_tms = 32;
1908   amd64_linux_record_tdep.size_loff_t = 8;
1909   amd64_linux_record_tdep.size_flock = 32;
1910   amd64_linux_record_tdep.size_oldold_utsname = 45;
1911   amd64_linux_record_tdep.size_ustat = 32;
1912   /* ADM64 doesn't need this size because it doesn't have sys_sigaction
1913      but sys_rt_sigaction.  */
1914   amd64_linux_record_tdep.size_old_sigaction = 32;
1915   /* ADM64 doesn't need this size because it doesn't have sys_sigpending
1916      but sys_rt_sigpending.  */
1917   amd64_linux_record_tdep.size_old_sigset_t = 8;
1918   amd64_linux_record_tdep.size_rlimit = 16;
1919   amd64_linux_record_tdep.size_rusage = 144;
1920   amd64_linux_record_tdep.size_timeval = 16;
1921   amd64_linux_record_tdep.size_timezone = 8;
1922   /* ADM64 doesn't need this size because it doesn't have sys_getgroups16
1923      but sys_getgroups.  */
1924   amd64_linux_record_tdep.size_old_gid_t = 2;
1925   /* ADM64 doesn't need this size because it doesn't have sys_getresuid16
1926      but sys_getresuid.  */
1927   amd64_linux_record_tdep.size_old_uid_t = 2;
1928   amd64_linux_record_tdep.size_fd_set = 128;
1929   /* ADM64 doesn't need this size because it doesn't have sys_readdir. */
1930   amd64_linux_record_tdep.size_old_dirent = 280;
1931   amd64_linux_record_tdep.size_statfs = 120;
1932   amd64_linux_record_tdep.size_statfs64 = 120;
1933   amd64_linux_record_tdep.size_sockaddr = 16;
1934   amd64_linux_record_tdep.size_int
1935     = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
1936   amd64_linux_record_tdep.size_long
1937     = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
1938   amd64_linux_record_tdep.size_ulong
1939     = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
1940   amd64_linux_record_tdep.size_msghdr = 56;
1941   amd64_linux_record_tdep.size_itimerval = 32;
1942   amd64_linux_record_tdep.size_stat = 144;
1943   amd64_linux_record_tdep.size_old_utsname = 325;
1944   amd64_linux_record_tdep.size_sysinfo = 112;
1945   amd64_linux_record_tdep.size_msqid_ds = 120;
1946   amd64_linux_record_tdep.size_shmid_ds = 112;
1947   amd64_linux_record_tdep.size_new_utsname = 390;
1948   amd64_linux_record_tdep.size_timex = 208;
1949   amd64_linux_record_tdep.size_mem_dqinfo = 24;
1950   amd64_linux_record_tdep.size_if_dqblk = 72;
1951   amd64_linux_record_tdep.size_fs_quota_stat = 80;
1952   amd64_linux_record_tdep.size_timespec = 16;
1953   amd64_linux_record_tdep.size_pollfd = 8;
1954   amd64_linux_record_tdep.size_NFS_FHSIZE = 32;
1955   amd64_linux_record_tdep.size_knfsd_fh = 132;
1956   amd64_linux_record_tdep.size_TASK_COMM_LEN = 16;
1957   amd64_linux_record_tdep.size_sigaction = 32;
1958   amd64_linux_record_tdep.size_sigset_t = 8;
1959   amd64_linux_record_tdep.size_siginfo_t = 128;
1960   amd64_linux_record_tdep.size_cap_user_data_t = 8;
1961   amd64_linux_record_tdep.size_stack_t = 24;
1962   amd64_linux_record_tdep.size_off_t = 8;
1963   amd64_linux_record_tdep.size_stat64 = 144;
1964   amd64_linux_record_tdep.size_gid_t = 4;
1965   amd64_linux_record_tdep.size_uid_t = 4;
1966   amd64_linux_record_tdep.size_PAGE_SIZE = 4096;
1967   amd64_linux_record_tdep.size_flock64 = 32;
1968   amd64_linux_record_tdep.size_user_desc = 16;
1969   amd64_linux_record_tdep.size_io_event = 32;
1970   amd64_linux_record_tdep.size_iocb = 64;
1971   amd64_linux_record_tdep.size_epoll_event = 12;
1972   amd64_linux_record_tdep.size_itimerspec = 32;
1973   amd64_linux_record_tdep.size_mq_attr = 64;
1974   amd64_linux_record_tdep.size_termios = 36;
1975   amd64_linux_record_tdep.size_termios2 = 44;
1976   amd64_linux_record_tdep.size_pid_t = 4;
1977   amd64_linux_record_tdep.size_winsize = 8;
1978   amd64_linux_record_tdep.size_serial_struct = 72;
1979   amd64_linux_record_tdep.size_serial_icounter_struct = 80;
1980   amd64_linux_record_tdep.size_hayes_esp_config = 12;
1981   amd64_linux_record_tdep.size_size_t = 8;
1982   amd64_linux_record_tdep.size_iovec = 16;
1983   amd64_linux_record_tdep.size_time_t = 8;
1984 
1985   /* These values are the second argument of system call "sys_fcntl"
1986      and "sys_fcntl64".  They are obtained from Linux Kernel source.  */
1987   amd64_linux_record_tdep.fcntl_F_GETLK = 5;
1988   amd64_linux_record_tdep.fcntl_F_GETLK64 = 12;
1989   amd64_linux_record_tdep.fcntl_F_SETLK64 = 13;
1990   amd64_linux_record_tdep.fcntl_F_SETLKW64 = 14;
1991 
1992   amd64_linux_record_tdep.arg1 = AMD64_RDI_REGNUM;
1993   amd64_linux_record_tdep.arg2 = AMD64_RSI_REGNUM;
1994   amd64_linux_record_tdep.arg3 = AMD64_RDX_REGNUM;
1995   amd64_linux_record_tdep.arg4 = AMD64_R10_REGNUM;
1996   amd64_linux_record_tdep.arg5 = AMD64_R8_REGNUM;
1997   amd64_linux_record_tdep.arg6 = AMD64_R9_REGNUM;
1998 
1999   /* These values are the second argument of system call "sys_ioctl".
2000      They are obtained from Linux Kernel source.  */
2001   amd64_linux_record_tdep.ioctl_TCGETS = 0x5401;
2002   amd64_linux_record_tdep.ioctl_TCSETS = 0x5402;
2003   amd64_linux_record_tdep.ioctl_TCSETSW = 0x5403;
2004   amd64_linux_record_tdep.ioctl_TCSETSF = 0x5404;
2005   amd64_linux_record_tdep.ioctl_TCGETA = 0x5405;
2006   amd64_linux_record_tdep.ioctl_TCSETA = 0x5406;
2007   amd64_linux_record_tdep.ioctl_TCSETAW = 0x5407;
2008   amd64_linux_record_tdep.ioctl_TCSETAF = 0x5408;
2009   amd64_linux_record_tdep.ioctl_TCSBRK = 0x5409;
2010   amd64_linux_record_tdep.ioctl_TCXONC = 0x540A;
2011   amd64_linux_record_tdep.ioctl_TCFLSH = 0x540B;
2012   amd64_linux_record_tdep.ioctl_TIOCEXCL = 0x540C;
2013   amd64_linux_record_tdep.ioctl_TIOCNXCL = 0x540D;
2014   amd64_linux_record_tdep.ioctl_TIOCSCTTY = 0x540E;
2015   amd64_linux_record_tdep.ioctl_TIOCGPGRP = 0x540F;
2016   amd64_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
2017   amd64_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
2018   amd64_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
2019   amd64_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
2020   amd64_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
2021   amd64_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
2022   amd64_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
2023   amd64_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
2024   amd64_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
2025   amd64_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
2026   amd64_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541A;
2027   amd64_linux_record_tdep.ioctl_FIONREAD = 0x541B;
2028   amd64_linux_record_tdep.ioctl_TIOCINQ
2029     = amd64_linux_record_tdep.ioctl_FIONREAD;
2030   amd64_linux_record_tdep.ioctl_TIOCLINUX = 0x541C;
2031   amd64_linux_record_tdep.ioctl_TIOCCONS = 0x541D;
2032   amd64_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541E;
2033   amd64_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541F;
2034   amd64_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
2035   amd64_linux_record_tdep.ioctl_FIONBIO = 0x5421;
2036   amd64_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
2037   amd64_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
2038   amd64_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
2039   amd64_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
2040   amd64_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
2041   amd64_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
2042   amd64_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
2043   amd64_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
2044   amd64_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
2045   amd64_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
2046   amd64_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
2047   amd64_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
2048   amd64_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
2049   amd64_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
2050   amd64_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
2051   amd64_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
2052   amd64_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
2053   amd64_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
2054   amd64_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
2055   amd64_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
2056   amd64_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
2057   amd64_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
2058   amd64_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
2059   amd64_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
2060   amd64_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545A;
2061   amd64_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545B;
2062   amd64_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545C;
2063   amd64_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545D;
2064   amd64_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545E;
2065   amd64_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545F;
2066   amd64_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
2067 
2068   tdep->i386_syscall_record = amd64_linux_syscall_record;
2069 
2070   /* GNU/Linux uses SVR4-style shared libraries.  */
2071   set_solib_svr4_fetch_link_map_offsets
2072     (gdbarch, svr4_lp64_fetch_link_map_offsets);
2073 
2074   /* Register DTrace handlers.  */
2075   set_gdbarch_dtrace_parse_probe_argument (gdbarch, amd64_dtrace_parse_probe_argument);
2076   set_gdbarch_dtrace_probe_is_enabled (gdbarch, amd64_dtrace_probe_is_enabled);
2077   set_gdbarch_dtrace_enable_probe (gdbarch, amd64_dtrace_enable_probe);
2078   set_gdbarch_dtrace_disable_probe (gdbarch, amd64_dtrace_disable_probe);
2079 }
2080 
2081 static void
2082 amd64_x32_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
2083 {
2084   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
2085   const struct target_desc *tdesc = info.target_desc;
2086   struct tdesc_arch_data *tdesc_data
2087     = (struct tdesc_arch_data *) info.tdep_info;
2088   const struct tdesc_feature *feature;
2089   int valid_p;
2090 
2091   gdb_assert (tdesc_data);
2092 
2093   tdep->gregset_reg_offset = amd64_linux_gregset_reg_offset;
2094   tdep->gregset_num_regs = ARRAY_SIZE (amd64_linux_gregset_reg_offset);
2095   tdep->sizeof_gregset = 27 * 8;
2096 
2097   amd64_x32_init_abi (info, gdbarch);
2098 
2099   /* Reserve a number for orig_rax.  */
2100   set_gdbarch_num_regs (gdbarch, AMD64_LINUX_NUM_REGS);
2101 
2102   if (! tdesc_has_registers (tdesc))
2103     tdesc = tdesc_x32_linux;
2104   tdep->tdesc = tdesc;
2105 
2106   feature = tdesc_find_feature (tdesc, "org.gnu.gdb.i386.linux");
2107   if (feature == NULL)
2108     return;
2109 
2110   valid_p = tdesc_numbered_register (feature, tdesc_data,
2111 				     AMD64_LINUX_ORIG_RAX_REGNUM,
2112 				     "orig_rax");
2113   if (!valid_p)
2114     return;
2115 
2116   amd64_linux_init_abi_common (info, gdbarch);
2117 
2118   /* Initialize the amd64_x32_linux_record_tdep.  */
2119   /* These values are the size of the type that will be used in a system
2120      call.  They are obtained from Linux Kernel source.  */
2121   amd64_x32_linux_record_tdep.size_pointer
2122     = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
2123   amd64_x32_linux_record_tdep.size__old_kernel_stat = 32;
2124   amd64_x32_linux_record_tdep.size_tms = 32;
2125   amd64_x32_linux_record_tdep.size_loff_t = 8;
2126   amd64_x32_linux_record_tdep.size_flock = 32;
2127   amd64_x32_linux_record_tdep.size_oldold_utsname = 45;
2128   amd64_x32_linux_record_tdep.size_ustat = 32;
2129   /* ADM64 doesn't need this size because it doesn't have sys_sigaction
2130      but sys_rt_sigaction.  */
2131   amd64_x32_linux_record_tdep.size_old_sigaction = 16;
2132   /* ADM64 doesn't need this size because it doesn't have sys_sigpending
2133      but sys_rt_sigpending.  */
2134   amd64_x32_linux_record_tdep.size_old_sigset_t = 4;
2135   amd64_x32_linux_record_tdep.size_rlimit = 16;
2136   amd64_x32_linux_record_tdep.size_rusage = 144;
2137   amd64_x32_linux_record_tdep.size_timeval = 16;
2138   amd64_x32_linux_record_tdep.size_timezone = 8;
2139   /* ADM64 doesn't need this size because it doesn't have sys_getgroups16
2140      but sys_getgroups.  */
2141   amd64_x32_linux_record_tdep.size_old_gid_t = 2;
2142   /* ADM64 doesn't need this size because it doesn't have sys_getresuid16
2143      but sys_getresuid.  */
2144   amd64_x32_linux_record_tdep.size_old_uid_t = 2;
2145   amd64_x32_linux_record_tdep.size_fd_set = 128;
2146   /* ADM64 doesn't need this size because it doesn't have sys_readdir. */
2147   amd64_x32_linux_record_tdep.size_old_dirent = 268;
2148   amd64_x32_linux_record_tdep.size_statfs = 120;
2149   amd64_x32_linux_record_tdep.size_statfs64 = 120;
2150   amd64_x32_linux_record_tdep.size_sockaddr = 16;
2151   amd64_x32_linux_record_tdep.size_int
2152     = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT;
2153   amd64_x32_linux_record_tdep.size_long
2154     = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
2155   amd64_x32_linux_record_tdep.size_ulong
2156     = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
2157   amd64_x32_linux_record_tdep.size_msghdr = 28;
2158   amd64_x32_linux_record_tdep.size_itimerval = 32;
2159   amd64_x32_linux_record_tdep.size_stat = 144;
2160   amd64_x32_linux_record_tdep.size_old_utsname = 325;
2161   amd64_x32_linux_record_tdep.size_sysinfo = 112;
2162   amd64_x32_linux_record_tdep.size_msqid_ds = 120;
2163   amd64_x32_linux_record_tdep.size_shmid_ds = 112;
2164   amd64_x32_linux_record_tdep.size_new_utsname = 390;
2165   amd64_x32_linux_record_tdep.size_timex = 208;
2166   amd64_x32_linux_record_tdep.size_mem_dqinfo = 24;
2167   amd64_x32_linux_record_tdep.size_if_dqblk = 72;
2168   amd64_x32_linux_record_tdep.size_fs_quota_stat = 80;
2169   amd64_x32_linux_record_tdep.size_timespec = 16;
2170   amd64_x32_linux_record_tdep.size_pollfd = 8;
2171   amd64_x32_linux_record_tdep.size_NFS_FHSIZE = 32;
2172   amd64_x32_linux_record_tdep.size_knfsd_fh = 132;
2173   amd64_x32_linux_record_tdep.size_TASK_COMM_LEN = 16;
2174   amd64_x32_linux_record_tdep.size_sigaction = 20;
2175   amd64_x32_linux_record_tdep.size_sigset_t = 8;
2176   amd64_x32_linux_record_tdep.size_siginfo_t = 128;
2177   amd64_x32_linux_record_tdep.size_cap_user_data_t = 8;
2178   amd64_x32_linux_record_tdep.size_stack_t = 12;
2179   amd64_x32_linux_record_tdep.size_off_t = 8;
2180   amd64_x32_linux_record_tdep.size_stat64 = 144;
2181   amd64_x32_linux_record_tdep.size_gid_t = 4;
2182   amd64_x32_linux_record_tdep.size_uid_t = 4;
2183   amd64_x32_linux_record_tdep.size_PAGE_SIZE = 4096;
2184   amd64_x32_linux_record_tdep.size_flock64 = 32;
2185   amd64_x32_linux_record_tdep.size_user_desc = 16;
2186   amd64_x32_linux_record_tdep.size_io_event = 32;
2187   amd64_x32_linux_record_tdep.size_iocb = 64;
2188   amd64_x32_linux_record_tdep.size_epoll_event = 12;
2189   amd64_x32_linux_record_tdep.size_itimerspec = 32;
2190   amd64_x32_linux_record_tdep.size_mq_attr = 64;
2191   amd64_x32_linux_record_tdep.size_termios = 36;
2192   amd64_x32_linux_record_tdep.size_termios2 = 44;
2193   amd64_x32_linux_record_tdep.size_pid_t = 4;
2194   amd64_x32_linux_record_tdep.size_winsize = 8;
2195   amd64_x32_linux_record_tdep.size_serial_struct = 72;
2196   amd64_x32_linux_record_tdep.size_serial_icounter_struct = 80;
2197   amd64_x32_linux_record_tdep.size_hayes_esp_config = 12;
2198   amd64_x32_linux_record_tdep.size_size_t = 4;
2199   amd64_x32_linux_record_tdep.size_iovec = 8;
2200   amd64_x32_linux_record_tdep.size_time_t = 8;
2201 
2202   /* These values are the second argument of system call "sys_fcntl"
2203      and "sys_fcntl64".  They are obtained from Linux Kernel source.  */
2204   amd64_x32_linux_record_tdep.fcntl_F_GETLK = 5;
2205   amd64_x32_linux_record_tdep.fcntl_F_GETLK64 = 12;
2206   amd64_x32_linux_record_tdep.fcntl_F_SETLK64 = 13;
2207   amd64_x32_linux_record_tdep.fcntl_F_SETLKW64 = 14;
2208 
2209   amd64_x32_linux_record_tdep.arg1 = AMD64_RDI_REGNUM;
2210   amd64_x32_linux_record_tdep.arg2 = AMD64_RSI_REGNUM;
2211   amd64_x32_linux_record_tdep.arg3 = AMD64_RDX_REGNUM;
2212   amd64_x32_linux_record_tdep.arg4 = AMD64_R10_REGNUM;
2213   amd64_x32_linux_record_tdep.arg5 = AMD64_R8_REGNUM;
2214   amd64_x32_linux_record_tdep.arg6 = AMD64_R9_REGNUM;
2215 
2216   /* These values are the second argument of system call "sys_ioctl".
2217      They are obtained from Linux Kernel source.  */
2218   amd64_x32_linux_record_tdep.ioctl_TCGETS = 0x5401;
2219   amd64_x32_linux_record_tdep.ioctl_TCSETS = 0x5402;
2220   amd64_x32_linux_record_tdep.ioctl_TCSETSW = 0x5403;
2221   amd64_x32_linux_record_tdep.ioctl_TCSETSF = 0x5404;
2222   amd64_x32_linux_record_tdep.ioctl_TCGETA = 0x5405;
2223   amd64_x32_linux_record_tdep.ioctl_TCSETA = 0x5406;
2224   amd64_x32_linux_record_tdep.ioctl_TCSETAW = 0x5407;
2225   amd64_x32_linux_record_tdep.ioctl_TCSETAF = 0x5408;
2226   amd64_x32_linux_record_tdep.ioctl_TCSBRK = 0x5409;
2227   amd64_x32_linux_record_tdep.ioctl_TCXONC = 0x540A;
2228   amd64_x32_linux_record_tdep.ioctl_TCFLSH = 0x540B;
2229   amd64_x32_linux_record_tdep.ioctl_TIOCEXCL = 0x540C;
2230   amd64_x32_linux_record_tdep.ioctl_TIOCNXCL = 0x540D;
2231   amd64_x32_linux_record_tdep.ioctl_TIOCSCTTY = 0x540E;
2232   amd64_x32_linux_record_tdep.ioctl_TIOCGPGRP = 0x540F;
2233   amd64_x32_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410;
2234   amd64_x32_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411;
2235   amd64_x32_linux_record_tdep.ioctl_TIOCSTI = 0x5412;
2236   amd64_x32_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413;
2237   amd64_x32_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414;
2238   amd64_x32_linux_record_tdep.ioctl_TIOCMGET = 0x5415;
2239   amd64_x32_linux_record_tdep.ioctl_TIOCMBIS = 0x5416;
2240   amd64_x32_linux_record_tdep.ioctl_TIOCMBIC = 0x5417;
2241   amd64_x32_linux_record_tdep.ioctl_TIOCMSET = 0x5418;
2242   amd64_x32_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419;
2243   amd64_x32_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541A;
2244   amd64_x32_linux_record_tdep.ioctl_FIONREAD = 0x541B;
2245   amd64_x32_linux_record_tdep.ioctl_TIOCINQ = amd64_x32_linux_record_tdep.ioctl_FIONREAD;
2246   amd64_x32_linux_record_tdep.ioctl_TIOCLINUX = 0x541C;
2247   amd64_x32_linux_record_tdep.ioctl_TIOCCONS = 0x541D;
2248   amd64_x32_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541E;
2249   amd64_x32_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541F;
2250   amd64_x32_linux_record_tdep.ioctl_TIOCPKT = 0x5420;
2251   amd64_x32_linux_record_tdep.ioctl_FIONBIO = 0x5421;
2252   amd64_x32_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422;
2253   amd64_x32_linux_record_tdep.ioctl_TIOCSETD = 0x5423;
2254   amd64_x32_linux_record_tdep.ioctl_TIOCGETD = 0x5424;
2255   amd64_x32_linux_record_tdep.ioctl_TCSBRKP = 0x5425;
2256   amd64_x32_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426;
2257   amd64_x32_linux_record_tdep.ioctl_TIOCSBRK = 0x5427;
2258   amd64_x32_linux_record_tdep.ioctl_TIOCCBRK = 0x5428;
2259   amd64_x32_linux_record_tdep.ioctl_TIOCGSID = 0x5429;
2260   amd64_x32_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a;
2261   amd64_x32_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b;
2262   amd64_x32_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c;
2263   amd64_x32_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d;
2264   amd64_x32_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430;
2265   amd64_x32_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431;
2266   amd64_x32_linux_record_tdep.ioctl_FIONCLEX = 0x5450;
2267   amd64_x32_linux_record_tdep.ioctl_FIOCLEX = 0x5451;
2268   amd64_x32_linux_record_tdep.ioctl_FIOASYNC = 0x5452;
2269   amd64_x32_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453;
2270   amd64_x32_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454;
2271   amd64_x32_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455;
2272   amd64_x32_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456;
2273   amd64_x32_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457;
2274   amd64_x32_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458;
2275   amd64_x32_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459;
2276   amd64_x32_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545A;
2277   amd64_x32_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545B;
2278   amd64_x32_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545C;
2279   amd64_x32_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545D;
2280   amd64_x32_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545E;
2281   amd64_x32_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545F;
2282   amd64_x32_linux_record_tdep.ioctl_FIOQSIZE = 0x5460;
2283 
2284   tdep->i386_syscall_record = amd64_x32_linux_syscall_record;
2285 
2286   /* GNU/Linux uses SVR4-style shared libraries.  */
2287   set_solib_svr4_fetch_link_map_offsets
2288     (gdbarch, svr4_ilp32_fetch_link_map_offsets);
2289 }
2290 
2291 
2292 /* Provide a prototype to silence -Wmissing-prototypes.  */
2293 extern void _initialize_amd64_linux_tdep (void);
2294 
2295 void
2296 _initialize_amd64_linux_tdep (void)
2297 {
2298   gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x86_64,
2299 			  GDB_OSABI_LINUX, amd64_linux_init_abi);
2300   gdbarch_register_osabi (bfd_arch_i386, bfd_mach_x64_32,
2301 			  GDB_OSABI_LINUX, amd64_x32_linux_init_abi);
2302 
2303   /* Initialize the Linux target description.  */
2304   initialize_tdesc_amd64_linux ();
2305   initialize_tdesc_amd64_avx_linux ();
2306   initialize_tdesc_amd64_mpx_linux ();
2307   initialize_tdesc_amd64_avx_mpx_linux ();
2308   initialize_tdesc_amd64_avx_avx512_linux ();
2309   initialize_tdesc_amd64_avx_mpx_avx512_pku_linux ();
2310 
2311   initialize_tdesc_x32_linux ();
2312   initialize_tdesc_x32_avx_linux ();
2313   initialize_tdesc_x32_avx_avx512_linux ();
2314 }
2315