GDB (xrefs)
/tmp/gdb-7.10/gdb/amd64-linux-nat.c
Go to the documentation of this file.
1 /* Native-dependent code for GNU/Linux x86-64.
2 
3  Copyright (C) 2001-2015 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 "inferior.h"
23 #include "regcache.h"
24 #include "elf/common.h"
25 #include <sys/uio.h>
26 #include <sys/ptrace.h>
27 #include <asm/prctl.h>
28 #include <sys/reg.h>
29 #include "gregset.h"
30 #include "gdb_proc_service.h"
31 
32 #include "amd64-nat.h"
33 #include "linux-nat.h"
34 #include "amd64-tdep.h"
35 #include "amd64-linux-tdep.h"
36 #include "i386-linux-tdep.h"
37 #include "x86-xstate.h"
38 
39 #include "x86-linux-nat.h"
40 #include "nat/linux-ptrace.h"
41 
42 /* Mapping between the general-purpose registers in GNU/Linux x86-64
43  `struct user' format and GDB's register cache layout for GNU/Linux
44  i386.
45 
46  Note that most GNU/Linux x86-64 registers are 64-bit, while the
47  GNU/Linux i386 registers are all 32-bit, but since we're
48  little-endian we get away with that. */
49 
50 /* From <sys/reg.h> on GNU/Linux i386. */
52 {
53  RAX * 8, RCX * 8, /* %eax, %ecx */
54  RDX * 8, RBX * 8, /* %edx, %ebx */
55  RSP * 8, RBP * 8, /* %esp, %ebp */
56  RSI * 8, RDI * 8, /* %esi, %edi */
57  RIP * 8, EFLAGS * 8, /* %eip, %eflags */
58  CS * 8, SS * 8, /* %cs, %ss */
59  DS * 8, ES * 8, /* %ds, %es */
60  FS * 8, GS * 8, /* %fs, %gs */
61  -1, -1, -1, -1, -1, -1, -1, -1,
62  -1, -1, -1, -1, -1, -1, -1, -1,
63  -1, -1, -1, -1, -1, -1, -1, -1, -1,
64  -1, -1, -1, -1, -1, -1, -1, -1,
65  -1, -1, -1, -1, /* MPX registers BND0 ... BND3. */
66  -1, -1, /* MPX registers BNDCFGU, BNDSTATUS. */
67  -1, -1, -1, -1, -1, -1, -1, -1, /* k0 ... k7 (AVX512) */
68  -1, -1, -1, -1, -1, -1, -1, -1, /* zmm0 ... zmm7 (AVX512) */
69  ORIG_RAX * 8 /* "orig_eax" */
70 };
71 
72 
73 /* Transfering the general-purpose registers between GDB, inferiors
74  and core files. */
75 
76 /* Fill GDB's register cache with the general-purpose register values
77  in *GREGSETP. */
78 
79 void
80 supply_gregset (struct regcache *regcache, const elf_gregset_t *gregsetp)
81 {
82  amd64_supply_native_gregset (regcache, gregsetp, -1);
83 }
84 
85 /* Fill register REGNUM (if it is a general-purpose register) in
86  *GREGSETP with the value in GDB's register cache. If REGNUM is -1,
87  do this for all registers. */
88 
89 void
91  elf_gregset_t *gregsetp, int regnum)
92 {
93  amd64_collect_native_gregset (regcache, gregsetp, regnum);
94 }
95 
96 /* Transfering floating-point registers between GDB, inferiors and cores. */
97 
98 /* Fill GDB's register cache with the floating-point and SSE register
99  values in *FPREGSETP. */
100 
101 void
102 supply_fpregset (struct regcache *regcache, const elf_fpregset_t *fpregsetp)
103 {
104  amd64_supply_fxsave (regcache, -1, fpregsetp);
105 }
106 
107 /* Fill register REGNUM (if it is a floating-point or SSE register) in
108  *FPREGSETP with the value in GDB's register cache. If REGNUM is
109  -1, do this for all registers. */
110 
111 void
113  elf_fpregset_t *fpregsetp, int regnum)
114 {
115  amd64_collect_fxsave (regcache, regnum, fpregsetp);
116 }
117 
118 
119 /* Transferring arbitrary registers between GDB and inferior. */
120 
121 /* Fetch register REGNUM from the child process. If REGNUM is -1, do
122  this for all registers (including the floating point and SSE
123  registers). */
124 
125 static void
127  struct regcache *regcache, int regnum)
128 {
129  struct gdbarch *gdbarch = get_regcache_arch (regcache);
130  int tid;
131 
132  /* GNU/Linux LWP ID's are process ID's. */
133  tid = ptid_get_lwp (inferior_ptid);
134  if (tid == 0)
135  tid = ptid_get_pid (inferior_ptid); /* Not a threaded program. */
136 
137  if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
138  {
139  elf_gregset_t regs;
140 
141  if (ptrace (PTRACE_GETREGS, tid, 0, (long) &regs) < 0)
142  perror_with_name (_("Couldn't get registers"));
143 
144  amd64_supply_native_gregset (regcache, &regs, -1);
145  if (regnum != -1)
146  return;
147  }
148 
149  if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
150  {
151  elf_fpregset_t fpregs;
152 
154  {
155  char xstateregs[X86_XSTATE_MAX_SIZE];
156  struct iovec iov;
157 
158  iov.iov_base = xstateregs;
159  iov.iov_len = sizeof (xstateregs);
160  if (ptrace (PTRACE_GETREGSET, tid,
161  (unsigned int) NT_X86_XSTATE, (long) &iov) < 0)
162  perror_with_name (_("Couldn't get extended state status"));
163 
164  amd64_supply_xsave (regcache, -1, xstateregs);
165  }
166  else
167  {
168  if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
169  perror_with_name (_("Couldn't get floating point status"));
170 
171  amd64_supply_fxsave (regcache, -1, &fpregs);
172  }
173  }
174 }
175 
176 /* Store register REGNUM back into the child process. If REGNUM is
177  -1, do this for all registers (including the floating-point and SSE
178  registers). */
179 
180 static void
182  struct regcache *regcache, int regnum)
183 {
184  struct gdbarch *gdbarch = get_regcache_arch (regcache);
185  int tid;
186 
187  /* GNU/Linux LWP ID's are process ID's. */
188  tid = ptid_get_lwp (inferior_ptid);
189  if (tid == 0)
190  tid = ptid_get_pid (inferior_ptid); /* Not a threaded program. */
191 
192  if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
193  {
194  elf_gregset_t regs;
195 
196  if (ptrace (PTRACE_GETREGS, tid, 0, (long) &regs) < 0)
197  perror_with_name (_("Couldn't get registers"));
198 
199  amd64_collect_native_gregset (regcache, &regs, regnum);
200 
201  if (ptrace (PTRACE_SETREGS, tid, 0, (long) &regs) < 0)
202  perror_with_name (_("Couldn't write registers"));
203 
204  if (regnum != -1)
205  return;
206  }
207 
208  if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
209  {
210  elf_fpregset_t fpregs;
211 
213  {
214  char xstateregs[X86_XSTATE_MAX_SIZE];
215  struct iovec iov;
216 
217  iov.iov_base = xstateregs;
218  iov.iov_len = sizeof (xstateregs);
219  if (ptrace (PTRACE_GETREGSET, tid,
220  (unsigned int) NT_X86_XSTATE, (long) &iov) < 0)
221  perror_with_name (_("Couldn't get extended state status"));
222 
223  amd64_collect_xsave (regcache, regnum, xstateregs, 0);
224 
225  if (ptrace (PTRACE_SETREGSET, tid,
226  (unsigned int) NT_X86_XSTATE, (long) &iov) < 0)
227  perror_with_name (_("Couldn't write extended state status"));
228  }
229  else
230  {
231  if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
232  perror_with_name (_("Couldn't get floating point status"));
233 
234  amd64_collect_fxsave (regcache, regnum, &fpregs);
235 
236  if (ptrace (PTRACE_SETFPREGS, tid, 0, (long) &fpregs) < 0)
237  perror_with_name (_("Couldn't write floating point status"));
238  }
239  }
240 }
241 
242 
243 /* This function is called by libthread_db as part of its handling of
244  a request for a thread's local storage address. */
245 
246 ps_err_e
248  lwpid_t lwpid, int idx, void **base)
249 {
250  if (gdbarch_bfd_arch_info (target_gdbarch ())->bits_per_word == 32)
251  {
252  unsigned int base_addr;
253  ps_err_e result;
254 
255  result = x86_linux_get_thread_area (lwpid, (void *) (long) idx,
256  &base_addr);
257  if (result == PS_OK)
258  {
259  /* Extend the value to 64 bits. Here it's assumed that
260  a "long" and a "void *" are the same. */
261  (*base) = (void *) (long) base_addr;
262  }
263  return result;
264  }
265  else
266  {
267  /* This definition comes from prctl.h, but some kernels may not
268  have it. */
269 #ifndef PTRACE_ARCH_PRCTL
270 #define PTRACE_ARCH_PRCTL 30
271 #endif
272  /* FIXME: ezannoni-2003-07-09 see comment above about include
273  file order. We could be getting bogus values for these two. */
274  gdb_assert (FS < ELF_NGREG);
275  gdb_assert (GS < ELF_NGREG);
276  switch (idx)
277  {
278  case FS:
279 #ifdef HAVE_STRUCT_USER_REGS_STRUCT_FS_BASE
280  {
281  /* PTRACE_ARCH_PRCTL is obsolete since 2.6.25, where the
282  fs_base and gs_base fields of user_regs_struct can be
283  used directly. */
284  unsigned long fs;
285  errno = 0;
286  fs = ptrace (PTRACE_PEEKUSER, lwpid,
287  offsetof (struct user_regs_struct, fs_base), 0);
288  if (errno == 0)
289  {
290  *base = (void *) fs;
291  return PS_OK;
292  }
293  }
294 #endif
295  if (ptrace (PTRACE_ARCH_PRCTL, lwpid, base, ARCH_GET_FS) == 0)
296  return PS_OK;
297  break;
298  case GS:
299 #ifdef HAVE_STRUCT_USER_REGS_STRUCT_GS_BASE
300  {
301  unsigned long gs;
302  errno = 0;
303  gs = ptrace (PTRACE_PEEKUSER, lwpid,
304  offsetof (struct user_regs_struct, gs_base), 0);
305  if (errno == 0)
306  {
307  *base = (void *) gs;
308  return PS_OK;
309  }
310  }
311 #endif
312  if (ptrace (PTRACE_ARCH_PRCTL, lwpid, base, ARCH_GET_GS) == 0)
313  return PS_OK;
314  break;
315  default: /* Should not happen. */
316  return PS_BADADDR;
317  }
318  }
319  return PS_ERR; /* ptrace failed. */
320 }
321 
322 
323 /* When GDB is built as a 64-bit application on linux, the
324  PTRACE_GETSIGINFO data is always presented in 64-bit layout. Since
325  debugging a 32-bit inferior with a 64-bit GDB should look the same
326  as debugging it with a 32-bit GDB, we do the 32-bit <-> 64-bit
327  conversion in-place ourselves. */
328 
329 /* These types below (compat_*) define a siginfo type that is layout
330  compatible with the siginfo type exported by the 32-bit userspace
331  support. */
332 
333 typedef int compat_int_t;
334 typedef unsigned int compat_uptr_t;
335 
336 typedef int compat_time_t;
337 typedef int compat_timer_t;
338 typedef int compat_clock_t;
339 
341 {
343  int tv_usec;
344 };
345 
346 typedef union compat_sigval
347 {
351 
352 typedef struct compat_siginfo
353 {
354  int si_signo;
355  int si_errno;
356  int si_code;
357 
358  union
359  {
360  int _pad[((128 / sizeof (int)) - 3)];
361 
362  /* kill() */
363  struct
364  {
365  unsigned int _pid;
366  unsigned int _uid;
367  } _kill;
368 
369  /* POSIX.1b timers */
370  struct
371  {
373  int _overrun;
375  } _timer;
376 
377  /* POSIX.1b signals */
378  struct
379  {
380  unsigned int _pid;
381  unsigned int _uid;
383  } _rt;
384 
385  /* SIGCHLD */
386  struct
387  {
388  unsigned int _pid;
389  unsigned int _uid;
390  int _status;
393  } _sigchld;
394 
395  /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
396  struct
397  {
398  unsigned int _addr;
399  } _sigfault;
400 
401  /* SIGPOLL */
402  struct
403  {
404  int _band;
405  int _fd;
406  } _sigpoll;
407  } _sifields;
409 
410 /* For x32, clock_t in _sigchld is 64bit aligned at 4 bytes. */
411 typedef struct compat_x32_clock
412 {
413  int lower;
414  int upper;
416 
417 typedef struct compat_x32_siginfo
418 {
419  int si_signo;
420  int si_errno;
421  int si_code;
422 
423  union
424  {
425  int _pad[((128 / sizeof (int)) - 3)];
426 
427  /* kill() */
428  struct
429  {
430  unsigned int _pid;
431  unsigned int _uid;
432  } _kill;
433 
434  /* POSIX.1b timers */
435  struct
436  {
438  int _overrun;
440  } _timer;
441 
442  /* POSIX.1b signals */
443  struct
444  {
445  unsigned int _pid;
446  unsigned int _uid;
448  } _rt;
449 
450  /* SIGCHLD */
451  struct
452  {
453  unsigned int _pid;
454  unsigned int _uid;
455  int _status;
458  } _sigchld;
459 
460  /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
461  struct
462  {
463  unsigned int _addr;
464  } _sigfault;
465 
466  /* SIGPOLL */
467  struct
468  {
469  int _band;
470  int _fd;
471  } _sigpoll;
472  } _sifields;
474 
475 #define cpt_si_pid _sifields._kill._pid
476 #define cpt_si_uid _sifields._kill._uid
477 #define cpt_si_timerid _sifields._timer._tid
478 #define cpt_si_overrun _sifields._timer._overrun
479 #define cpt_si_status _sifields._sigchld._status
480 #define cpt_si_utime _sifields._sigchld._utime
481 #define cpt_si_stime _sifields._sigchld._stime
482 #define cpt_si_ptr _sifields._rt._sigval.sival_ptr
483 #define cpt_si_addr _sifields._sigfault._addr
484 #define cpt_si_band _sifields._sigpoll._band
485 #define cpt_si_fd _sifields._sigpoll._fd
486 
487 /* glibc at least up to 2.3.2 doesn't have si_timerid, si_overrun.
488  In their place is si_timer1,si_timer2. */
489 #ifndef si_timerid
490 #define si_timerid si_timer1
491 #endif
492 #ifndef si_overrun
493 #define si_overrun si_timer2
494 #endif
495 
496 static void
498 {
499  memset (to, 0, sizeof (*to));
500 
501  to->si_signo = from->si_signo;
502  to->si_errno = from->si_errno;
503  to->si_code = from->si_code;
504 
505  if (to->si_code == SI_TIMER)
506  {
507  to->cpt_si_timerid = from->si_timerid;
508  to->cpt_si_overrun = from->si_overrun;
509  to->cpt_si_ptr = (intptr_t) from->si_ptr;
510  }
511  else if (to->si_code == SI_USER)
512  {
513  to->cpt_si_pid = from->si_pid;
514  to->cpt_si_uid = from->si_uid;
515  }
516  else if (to->si_code < 0)
517  {
518  to->cpt_si_pid = from->si_pid;
519  to->cpt_si_uid = from->si_uid;
520  to->cpt_si_ptr = (intptr_t) from->si_ptr;
521  }
522  else
523  {
524  switch (to->si_signo)
525  {
526  case SIGCHLD:
527  to->cpt_si_pid = from->si_pid;
528  to->cpt_si_uid = from->si_uid;
529  to->cpt_si_status = from->si_status;
530  to->cpt_si_utime = from->si_utime;
531  to->cpt_si_stime = from->si_stime;
532  break;
533  case SIGILL:
534  case SIGFPE:
535  case SIGSEGV:
536  case SIGBUS:
537  to->cpt_si_addr = (intptr_t) from->si_addr;
538  break;
539  case SIGPOLL:
540  to->cpt_si_band = from->si_band;
541  to->cpt_si_fd = from->si_fd;
542  break;
543  default:
544  to->cpt_si_pid = from->si_pid;
545  to->cpt_si_uid = from->si_uid;
546  to->cpt_si_ptr = (intptr_t) from->si_ptr;
547  break;
548  }
549  }
550 }
551 
552 static void
554 {
555  memset (to, 0, sizeof (*to));
556 
557  to->si_signo = from->si_signo;
558  to->si_errno = from->si_errno;
559  to->si_code = from->si_code;
560 
561  if (to->si_code == SI_TIMER)
562  {
563  to->si_timerid = from->cpt_si_timerid;
564  to->si_overrun = from->cpt_si_overrun;
565  to->si_ptr = (void *) (intptr_t) from->cpt_si_ptr;
566  }
567  else if (to->si_code == SI_USER)
568  {
569  to->si_pid = from->cpt_si_pid;
570  to->si_uid = from->cpt_si_uid;
571  }
572  if (to->si_code < 0)
573  {
574  to->si_pid = from->cpt_si_pid;
575  to->si_uid = from->cpt_si_uid;
576  to->si_ptr = (void *) (intptr_t) from->cpt_si_ptr;
577  }
578  else
579  {
580  switch (to->si_signo)
581  {
582  case SIGCHLD:
583  to->si_pid = from->cpt_si_pid;
584  to->si_uid = from->cpt_si_uid;
585  to->si_status = from->cpt_si_status;
586  to->si_utime = from->cpt_si_utime;
587  to->si_stime = from->cpt_si_stime;
588  break;
589  case SIGILL:
590  case SIGFPE:
591  case SIGSEGV:
592  case SIGBUS:
593  to->si_addr = (void *) (intptr_t) from->cpt_si_addr;
594  break;
595  case SIGPOLL:
596  to->si_band = from->cpt_si_band;
597  to->si_fd = from->cpt_si_fd;
598  break;
599  default:
600  to->si_pid = from->cpt_si_pid;
601  to->si_uid = from->cpt_si_uid;
602  to->si_ptr = (void* ) (intptr_t) from->cpt_si_ptr;
603  break;
604  }
605  }
606 }
607 
608 static void
610  siginfo_t *from)
611 {
612  memset (to, 0, sizeof (*to));
613 
614  to->si_signo = from->si_signo;
615  to->si_errno = from->si_errno;
616  to->si_code = from->si_code;
617 
618  if (to->si_code == SI_TIMER)
619  {
620  to->cpt_si_timerid = from->si_timerid;
621  to->cpt_si_overrun = from->si_overrun;
622  to->cpt_si_ptr = (intptr_t) from->si_ptr;
623  }
624  else if (to->si_code == SI_USER)
625  {
626  to->cpt_si_pid = from->si_pid;
627  to->cpt_si_uid = from->si_uid;
628  }
629  else if (to->si_code < 0)
630  {
631  to->cpt_si_pid = from->si_pid;
632  to->cpt_si_uid = from->si_uid;
633  to->cpt_si_ptr = (intptr_t) from->si_ptr;
634  }
635  else
636  {
637  switch (to->si_signo)
638  {
639  case SIGCHLD:
640  to->cpt_si_pid = from->si_pid;
641  to->cpt_si_uid = from->si_uid;
642  to->cpt_si_status = from->si_status;
643  memcpy (&to->cpt_si_utime, &from->si_utime,
644  sizeof (to->cpt_si_utime));
645  memcpy (&to->cpt_si_stime, &from->si_stime,
646  sizeof (to->cpt_si_stime));
647  break;
648  case SIGILL:
649  case SIGFPE:
650  case SIGSEGV:
651  case SIGBUS:
652  to->cpt_si_addr = (intptr_t) from->si_addr;
653  break;
654  case SIGPOLL:
655  to->cpt_si_band = from->si_band;
656  to->cpt_si_fd = from->si_fd;
657  break;
658  default:
659  to->cpt_si_pid = from->si_pid;
660  to->cpt_si_uid = from->si_uid;
661  to->cpt_si_ptr = (intptr_t) from->si_ptr;
662  break;
663  }
664  }
665 }
666 
667 static void
670 {
671  memset (to, 0, sizeof (*to));
672 
673  to->si_signo = from->si_signo;
674  to->si_errno = from->si_errno;
675  to->si_code = from->si_code;
676 
677  if (to->si_code == SI_TIMER)
678  {
679  to->si_timerid = from->cpt_si_timerid;
680  to->si_overrun = from->cpt_si_overrun;
681  to->si_ptr = (void *) (intptr_t) from->cpt_si_ptr;
682  }
683  else if (to->si_code == SI_USER)
684  {
685  to->si_pid = from->cpt_si_pid;
686  to->si_uid = from->cpt_si_uid;
687  }
688  if (to->si_code < 0)
689  {
690  to->si_pid = from->cpt_si_pid;
691  to->si_uid = from->cpt_si_uid;
692  to->si_ptr = (void *) (intptr_t) from->cpt_si_ptr;
693  }
694  else
695  {
696  switch (to->si_signo)
697  {
698  case SIGCHLD:
699  to->si_pid = from->cpt_si_pid;
700  to->si_uid = from->cpt_si_uid;
701  to->si_status = from->cpt_si_status;
702  memcpy (&to->si_utime, &from->cpt_si_utime,
703  sizeof (to->si_utime));
704  memcpy (&to->si_stime, &from->cpt_si_stime,
705  sizeof (to->si_stime));
706  break;
707  case SIGILL:
708  case SIGFPE:
709  case SIGSEGV:
710  case SIGBUS:
711  to->si_addr = (void *) (intptr_t) from->cpt_si_addr;
712  break;
713  case SIGPOLL:
714  to->si_band = from->cpt_si_band;
715  to->si_fd = from->cpt_si_fd;
716  break;
717  default:
718  to->si_pid = from->cpt_si_pid;
719  to->si_uid = from->cpt_si_uid;
720  to->si_ptr = (void* ) (intptr_t) from->cpt_si_ptr;
721  break;
722  }
723  }
724 }
725 
726 /* Convert a native/host siginfo object, into/from the siginfo in the
727  layout of the inferiors' architecture. Returns true if any
728  conversion was done; false otherwise. If DIRECTION is 1, then copy
729  from INF to NATIVE. If DIRECTION is 0, copy from NATIVE to
730  INF. */
731 
732 static int
733 amd64_linux_siginfo_fixup (siginfo_t *native, gdb_byte *inf, int direction)
734 {
736 
737  /* Is the inferior 32-bit? If so, then do fixup the siginfo
738  object. */
739  if (gdbarch_bfd_arch_info (gdbarch)->bits_per_word == 32)
740  {
741  gdb_assert (sizeof (siginfo_t) == sizeof (compat_siginfo_t));
742 
743  if (direction == 0)
744  compat_siginfo_from_siginfo ((struct compat_siginfo *) inf, native);
745  else
746  siginfo_from_compat_siginfo (native, (struct compat_siginfo *) inf);
747 
748  return 1;
749  }
750  /* No fixup for native x32 GDB. */
751  else if (gdbarch_addr_bit (gdbarch) == 32 && sizeof (void *) == 8)
752  {
753  gdb_assert (sizeof (siginfo_t) == sizeof (compat_x32_siginfo_t));
754 
755  if (direction == 0)
757  native);
758  else
760  (struct compat_x32_siginfo *) inf);
761 
762  return 1;
763  }
764  else
765  return 0;
766 }
767 
768 
769 /* Provide a prototype to silence -Wmissing-prototypes. */
770 void _initialize_amd64_linux_nat (void);
771 
772 void
774 {
775  struct target_ops *t;
776 
781 
784 
785  /* Create a generic x86 GNU/Linux target. */
787 
788  /* Add our register access methods. */
791 
792  /* Add the target. */
794 
795  /* Add our siginfo layout converter. */
797 }
unsigned int lwpid_t
struct gdbarch * target_gdbarch(void)
Definition: gdbarch.c:5143
int _pad[((128/sizeof(int))-3)]
struct frame_info * get_current_frame(void)
Definition: frame.c:1461
#define I386_LINUX_NUM_REGS
struct compat_siginfo::@4::@8 _sigchld
union compat_sigval compat_sigval_t
struct compat_siginfo compat_siginfo_t
struct gdbarch * get_regcache_arch(const struct regcache *regcache)
Definition: regcache.c:297
void amd64_collect_native_gregset(const struct regcache *regcache, void *gregs, int regnum)
Definition: amd64-nat.c:119
int compat_int_t
static void siginfo_from_compat_x32_siginfo(siginfo_t *to, compat_x32_siginfo_t *from)
#define ELF_NGREG
void supply_fpregset(struct regcache *regcache, const elf_fpregset_t *fpregsetp)
struct compat_siginfo::@4::@9 _sigfault
int amd64_native_gregset32_num_regs
Definition: amd64-nat.c:42
struct compat_siginfo::@4::@6 _timer
struct target_ops * x86_linux_create_target(void)
ps_err_e
int compat_clock_t
ps_err_e x86_linux_get_thread_area(pid_t pid, void *addr, unsigned int *base_addr)
unsigned int _addr
union compat_x32_siginfo::@11 _sifields
#define PTRACE_SETFPREGS
#define _(String)
Definition: gdb_locale.h:40
void linux_nat_set_siginfo_fixup(struct target_ops *t, int(*siginfo_fixup)(siginfo_t *, gdb_byte *, int))
Definition: linux-nat.c:5082
static int amd64_linux_siginfo_fixup(siginfo_t *native, gdb_byte *inf, int direction)
struct compat_x32_siginfo compat_x32_siginfo_t
PTRACE_TYPE_RET ptrace()
int amd64_native_gregset64_num_regs
Definition: amd64-nat.c:46
static void siginfo_from_compat_siginfo(siginfo_t *to, compat_siginfo_t *from)
struct compat_siginfo::@4::@10 _sigpoll
void amd64_collect_fxsave(const struct regcache *regcache, int regnum, void *fxsave)
Definition: amd64-tdep.c:3224
void amd64_supply_native_gregset(struct regcache *regcache, const void *gregs, int regnum)
Definition: amd64-nat.c:88
struct compat_x32_siginfo::@11::@16 _sigfault
int * amd64_native_gregset32_reg_offset
Definition: amd64-nat.c:41
compat_uptr_t sival_ptr
struct compat_x32_clock compat_x32_clock_t
int * from
Definition: varobj.h:282
unsigned int _pid
enum tribool have_ptrace_getregset
Definition: linux-nat.c:169
void amd64_supply_fxsave(struct regcache *regcache, int regnum, const void *fxsave)
Definition: amd64-tdep.c:3173
#define PTRACE_GETFPREGS
static void amd64_linux_store_inferior_registers(struct target_ops *ops, struct regcache *regcache, int regnum)
struct compat_siginfo::@4::@5 _kill
int * amd64_native_gregset64_reg_offset
Definition: amd64-nat.c:45
compat_int_t sival_int
static void compat_siginfo_from_siginfo(compat_siginfo_t *to, siginfo_t *from)
compat_timer_t _tid
static void amd64_linux_fetch_inferior_registers(struct target_ops *ops, struct regcache *regcache, int regnum)
void amd64_supply_xsave(struct regcache *regcache, int regnum, const void *xsave)
Definition: amd64-tdep.c:3196
void fill_gregset(const struct regcache *regcache, elf_gregset_t *gregsetp, int regnum)
void _initialize_amd64_linux_nat(void)
void x86_linux_add_target(struct target_ops *t)
compat_sigval_t _sigval
unsigned int _uid
Definition: gnu-nat.c:163
#define gdb_assert(expr)
Definition: gdb_assert.h:33
int amd64_linux_gregset_reg_offset[]
#define PTRACE_SETREGSET
Definition: linux-ptrace.h:51
int gdbarch_addr_bit(struct gdbarch *gdbarch)
Definition: gdbarch.c:1707
compat_x32_clock_t _stime
struct compat_x32_siginfo::@11::@12 _kill
int regnum
Definition: aarch64-tdep.c:69
compat_sigval_t _sigval
void fill_fpregset(const struct regcache *regcache, elf_fpregset_t *fpregsetp, int regnum)
compat_clock_t _stime
compat_x32_clock_t _utime
#define X86_XSTATE_MAX_SIZE
Definition: x86-xstate.h:53
int compat_timer_t
#define PTRACE_GETREGSET
Definition: linux-ptrace.h:47
struct compat_siginfo::@4::@7 _rt
int ptid_get_pid(ptid_t ptid)
Definition: ptid.c:52
struct compat_x32_siginfo::@11::@17 _sigpoll
const char const char int
Definition: command.h:229
bfd_byte gdb_byte
Definition: common-types.h:38
compat_clock_t _utime
void(* to_fetch_registers)(struct target_ops *, struct regcache *, int) TARGET_DEFAULT_IGNORE()
Definition: target.h:472
ps_err_e ps_get_thread_area(const struct ps_prochandle *ph, lwpid_t lwpid, int idx, void **base)
compat_timer_t _tid
void void void void void void void void void perror_with_name(const char *string) ATTRIBUTE_NORETURN
Definition: utils.c:979
#define PTRACE_ARCH_PRCTL
unsigned int compat_uptr_t
struct compat_x32_siginfo::@11::@14 _rt
#define AMD64_LINUX_NUM_REGS
compat_time_t tv_sec
ptid_t inferior_ptid
Definition: infcmd.c:124
int amd64_native_gregset_supplies_p(struct gdbarch *gdbarch, int regnum)
Definition: amd64-nat.c:78
static int amd64_linux_gregset32_reg_offset[]
static void compat_x32_siginfo_from_siginfo(compat_x32_siginfo_t *to, siginfo_t *from)
#define PTRACE_SETREGS
void supply_gregset(struct regcache *regcache, const elf_gregset_t *gregsetp)
struct compat_x32_siginfo::@11::@13 _timer
union compat_siginfo::@4 _sifields
int _pad[((128/sizeof(int))-3)]
long ptid_get_lwp(ptid_t ptid)
Definition: ptid.c:60
struct compat_x32_siginfo::@11::@15 _sigchld
const struct bfd_arch_info * gdbarch_bfd_arch_info(struct gdbarch *gdbarch)
Definition: gdbarch.c:1411
void amd64_collect_xsave(const struct regcache *regcache, int regnum, void *xsave, int gcore)
Definition: amd64-tdep.c:3245
int int * to
Definition: varobj.h:282
int compat_time_t
void(* to_store_registers)(struct target_ops *, struct regcache *, int) TARGET_DEFAULT_NORETURN(noprocess())
Definition: target.h:474
struct gdbarch * get_frame_arch(struct frame_info *this_frame)
Definition: frame.c:2535
#define PTRACE_GETREGS