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(linux_test_for_tracefork): Back out turd from previous check-in.
[deliverable/binutils-gdb.git] / gdb / i386-linux-tdep.c
CommitLineData
871fbe6a 1/* Target-dependent code for GNU/Linux i386.
ca557f44 2
0fb0cc75 3 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
4252dc94 4 Free Software Foundation, Inc.
e7ee86a9
JB		 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
a9762ec7 10 the Free Software Foundation; either version 3 of the License, or
e7ee86a9
JB		 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
a9762ec7 19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
e7ee86a9
JB		 20
21#include "defs.h"
22#include "gdbcore.h"
23#include "frame.h"
24#include "value.h"
4e052eda 25#include "regcache.h"
6441c4a0 26#include "inferior.h"
0670c0aa 27#include "osabi.h"
38c968cf 28#include "reggroups.h"
5cb2fe25 29#include "dwarf2-frame.h"
0670c0aa 30#include "gdb_string.h"
4be87837 31
8201327c
MK		 32#include "i386-tdep.h"
33#include "i386-linux-tdep.h"
4aa995e1 34#include "linux-tdep.h"
0670c0aa 35#include "glibc-tdep.h"
871fbe6a 36#include "solib-svr4.h"
982e9687 37#include "symtab.h"
237fc4c9 38#include "arch-utils.h"
17ea7499
CES		 39#include "regset.h"
40
77fcef51
HZ		 41#include "record.h"
42#include "linux-record.h"
43#include <stdint.h>
44
17ea7499
CES		 45/* Supported register note sections. */
46static struct core_regset_section i386_linux_regset_sections[] =
47{
48 { ".reg", 144 },
49 { ".reg2", 108 },
50 { ".reg-xfp", 512 },
51 { NULL, 0 }
52};
8201327c 53
6441c4a0
MK		 54/* Return the name of register REG. */
55
16775908 56static const char *
d93859e2 57i386_linux_register_name (struct gdbarch *gdbarch, int reg)
6441c4a0
MK		 58{
59 /* Deal with the extra "orig_eax" pseudo register. */
60 if (reg == I386_LINUX_ORIG_EAX_REGNUM)
61 return "orig_eax";
62
d93859e2 63 return i386_register_name (gdbarch, reg);
6441c4a0 64}
38c968cf
AC		 65
66/* Return non-zero, when the register is in the corresponding register
67 group. Put the LINUX_ORIG_EAX register in the system group. */
68static int
69i386_linux_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
70 struct reggroup *group)
71{
72 if (regnum == I386_LINUX_ORIG_EAX_REGNUM)
73 return (group == system_reggroup
74 || group == save_reggroup
75 || group == restore_reggroup);
76 return i386_register_reggroup_p (gdbarch, regnum, group);
77}
78
e7ee86a9
JB		 79\f
80/* Recognizing signal handler frames. */
81
ca557f44 82/* GNU/Linux has two flavors of signals. Normal signal handlers, and
e7ee86a9
JB		 83 "realtime" (RT) signals. The RT signals can provide additional
84 information to the signal handler if the SA_SIGINFO flag is set
85 when establishing a signal handler using `sigaction'. It is not
ca557f44
AC		 86 unlikely that future versions of GNU/Linux will support SA_SIGINFO
87 for normal signals too. */
e7ee86a9
JB		 88
89/* When the i386 Linux kernel calls a signal handler and the
90 SA_RESTORER flag isn't set, the return address points to a bit of
91 code on the stack. This function returns whether the PC appears to
92 be within this bit of code.
93
94 The instruction sequence for normal signals is
95 pop %eax
acd5c798 96 mov $0x77, %eax
e7ee86a9
JB		 97 int $0x80
98 or 0x58 0xb8 0x77 0x00 0x00 0x00 0xcd 0x80.
99
100 Checking for the code sequence should be somewhat reliable, because
101 the effect is to call the system call sigreturn. This is unlikely
911bc6ee 102 to occur anywhere other than in a signal trampoline.
e7ee86a9
JB		 103
104 It kind of sucks that we have to read memory from the process in
105 order to identify a signal trampoline, but there doesn't seem to be
911bc6ee
MK		 106 any other way. Therefore we only do the memory reads if no
107 function name could be identified, which should be the case since
108 the code is on the stack.
e7ee86a9
JB		 109
110 Detection of signal trampolines for handlers that set the
111 SA_RESTORER flag is in general not possible. Unfortunately this is
112 what the GNU C Library has been doing for quite some time now.
113 However, as of version 2.1.2, the GNU C Library uses signal
114 trampolines (named __restore and __restore_rt) that are identical
115 to the ones used by the kernel. Therefore, these trampolines are
116 supported too. */
117
acd5c798
MK		 118#define LINUX_SIGTRAMP_INSN0 0x58 /* pop %eax */
119#define LINUX_SIGTRAMP_OFFSET0 0
120#define LINUX_SIGTRAMP_INSN1 0xb8 /* mov $NNNN, %eax */
121#define LINUX_SIGTRAMP_OFFSET1 1
122#define LINUX_SIGTRAMP_INSN2 0xcd /* int */
123#define LINUX_SIGTRAMP_OFFSET2 6
e7ee86a9 124
4252dc94 125static const gdb_byte linux_sigtramp_code[] =
e7ee86a9
JB		 126{
127 LINUX_SIGTRAMP_INSN0, /* pop %eax */
acd5c798 128 LINUX_SIGTRAMP_INSN1, 0x77, 0x00, 0x00, 0x00, /* mov $0x77, %eax */
e7ee86a9
JB		 129 LINUX_SIGTRAMP_INSN2, 0x80 /* int $0x80 */
130};
131
132#define LINUX_SIGTRAMP_LEN (sizeof linux_sigtramp_code)
133
10458914
DJ		 134/* If THIS_FRAME is a sigtramp routine, return the address of the
135 start of the routine. Otherwise, return 0. */
e7ee86a9
JB		 136
137static CORE_ADDR
10458914 138i386_linux_sigtramp_start (struct frame_info *this_frame)
e7ee86a9 139{
10458914 140 CORE_ADDR pc = get_frame_pc (this_frame);
4252dc94 141 gdb_byte buf[LINUX_SIGTRAMP_LEN];
e7ee86a9
JB		 142
143 /* We only recognize a signal trampoline if PC is at the start of
144 one of the three instructions. We optimize for finding the PC at
145 the start, as will be the case when the trampoline is not the
146 first frame on the stack. We assume that in the case where the
147 PC is not at the start of the instruction sequence, there will be
148 a few trailing readable bytes on the stack. */
149
10458914 150 if (!safe_frame_unwind_memory (this_frame, pc, buf, LINUX_SIGTRAMP_LEN))
e7ee86a9
JB		 151 return 0;
152
153 if (buf[0] != LINUX_SIGTRAMP_INSN0)
154 {
155 int adjust;
156
157 switch (buf[0])
158 {
159 case LINUX_SIGTRAMP_INSN1:
160 adjust = LINUX_SIGTRAMP_OFFSET1;
161 break;
162 case LINUX_SIGTRAMP_INSN2:
163 adjust = LINUX_SIGTRAMP_OFFSET2;
164 break;
165 default:
166 return 0;
167 }
168
169 pc -= adjust;
170
10458914 171 if (!safe_frame_unwind_memory (this_frame, pc, buf, LINUX_SIGTRAMP_LEN))
e7ee86a9
JB		 172 return 0;
173 }
174
175 if (memcmp (buf, linux_sigtramp_code, LINUX_SIGTRAMP_LEN) != 0)
176 return 0;
177
178 return pc;
179}
180
181/* This function does the same for RT signals. Here the instruction
182 sequence is
acd5c798 183 mov $0xad, %eax
e7ee86a9
JB		 184 int $0x80
185 or 0xb8 0xad 0x00 0x00 0x00 0xcd 0x80.
186
187 The effect is to call the system call rt_sigreturn. */
188
acd5c798
MK		 189#define LINUX_RT_SIGTRAMP_INSN0 0xb8 /* mov $NNNN, %eax */
190#define LINUX_RT_SIGTRAMP_OFFSET0 0
191#define LINUX_RT_SIGTRAMP_INSN1 0xcd /* int */
192#define LINUX_RT_SIGTRAMP_OFFSET1 5
e7ee86a9 193
4252dc94 194static const gdb_byte linux_rt_sigtramp_code[] =
e7ee86a9 195{
acd5c798 196 LINUX_RT_SIGTRAMP_INSN0, 0xad, 0x00, 0x00, 0x00, /* mov $0xad, %eax */
e7ee86a9
JB		 197 LINUX_RT_SIGTRAMP_INSN1, 0x80 /* int $0x80 */
198};
199
200#define LINUX_RT_SIGTRAMP_LEN (sizeof linux_rt_sigtramp_code)
201
10458914
DJ		 202/* If THIS_FRAME is an RT sigtramp routine, return the address of the
203 start of the routine. Otherwise, return 0. */
e7ee86a9
JB		 204
205static CORE_ADDR
10458914 206i386_linux_rt_sigtramp_start (struct frame_info *this_frame)
e7ee86a9 207{
10458914 208 CORE_ADDR pc = get_frame_pc (this_frame);
4252dc94 209 gdb_byte buf[LINUX_RT_SIGTRAMP_LEN];
e7ee86a9
JB		 210
211 /* We only recognize a signal trampoline if PC is at the start of
212 one of the two instructions. We optimize for finding the PC at
213 the start, as will be the case when the trampoline is not the
214 first frame on the stack. We assume that in the case where the
215 PC is not at the start of the instruction sequence, there will be
216 a few trailing readable bytes on the stack. */
217
10458914 218 if (!safe_frame_unwind_memory (this_frame, pc, buf, LINUX_RT_SIGTRAMP_LEN))
e7ee86a9
JB		 219 return 0;
220
221 if (buf[0] != LINUX_RT_SIGTRAMP_INSN0)
222 {
223 if (buf[0] != LINUX_RT_SIGTRAMP_INSN1)
224 return 0;
225
226 pc -= LINUX_RT_SIGTRAMP_OFFSET1;
227
10458914 228 if (!safe_frame_unwind_memory (this_frame, pc, buf,
8e6bed05 229 LINUX_RT_SIGTRAMP_LEN))
e7ee86a9
JB		 230 return 0;
231 }
232
233 if (memcmp (buf, linux_rt_sigtramp_code, LINUX_RT_SIGTRAMP_LEN) != 0)
234 return 0;
235
236 return pc;
237}
238
10458914
DJ		 239/* Return whether THIS_FRAME corresponds to a GNU/Linux sigtramp
240 routine. */
e7ee86a9 241
8201327c 242static int
10458914 243i386_linux_sigtramp_p (struct frame_info *this_frame)
e7ee86a9 244{
10458914 245 CORE_ADDR pc = get_frame_pc (this_frame);
911bc6ee
MK		 246 char *name;
247
248 find_pc_partial_function (pc, &name, NULL, NULL);
249
ef17e74b
DJ		 250 /* If we have NAME, we can optimize the search. The trampolines are
251 named __restore and __restore_rt. However, they aren't dynamically
252 exported from the shared C library, so the trampoline may appear to
253 be part of the preceding function. This should always be sigaction,
254 __sigaction, or __libc_sigaction (all aliases to the same function). */
255 if (name == NULL || strstr (name, "sigaction") != NULL)
10458914
DJ		 256 return (i386_linux_sigtramp_start (this_frame) != 0
257 || i386_linux_rt_sigtramp_start (this_frame) != 0);
ef17e74b
DJ		 258
259 return (strcmp ("__restore", name) == 0
260 || strcmp ("__restore_rt", name) == 0);
e7ee86a9
JB		 261}
262
4a4e5149
DJ		 263/* Return one if the PC of THIS_FRAME is in a signal trampoline which
264 may have DWARF-2 CFI. */
12b8a2cb
DJ		 265
266static int
267i386_linux_dwarf_signal_frame_p (struct gdbarch *gdbarch,
4a4e5149 268 struct frame_info *this_frame)
12b8a2cb 269{
4a4e5149 270 CORE_ADDR pc = get_frame_pc (this_frame);
12b8a2cb
DJ		 271 char *name;
272
273 find_pc_partial_function (pc, &name, NULL, NULL);
274
275 /* If a vsyscall DSO is in use, the signal trampolines may have these
276 names. */
277 if (name && (strcmp (name, "__kernel_sigreturn") == 0
278 || strcmp (name, "__kernel_rt_sigreturn") == 0))
279 return 1;
280
281 return 0;
282}
283
acd5c798
MK		 284/* Offset to struct sigcontext in ucontext, from <asm/ucontext.h>. */
285#define I386_LINUX_UCONTEXT_SIGCONTEXT_OFFSET 20
286
10458914
DJ		 287/* Assuming THIS_FRAME is a GNU/Linux sigtramp routine, return the
288 address of the associated sigcontext structure. */
e7ee86a9 289
b7d15bf7 290static CORE_ADDR
10458914 291i386_linux_sigcontext_addr (struct frame_info *this_frame)
e7ee86a9
JB		 292{
293 CORE_ADDR pc;
acd5c798 294 CORE_ADDR sp;
4252dc94 295 gdb_byte buf[4];
acd5c798 296
10458914 297 get_frame_register (this_frame, I386_ESP_REGNUM, buf);
acd5c798 298 sp = extract_unsigned_integer (buf, 4);
e7ee86a9 299
10458914 300 pc = i386_linux_sigtramp_start (this_frame);
e7ee86a9
JB		 301 if (pc)
302 {
acd5c798
MK		 303 /* The sigcontext structure lives on the stack, right after
304 the signum argument. We determine the address of the
305 sigcontext structure by looking at the frame's stack
306 pointer. Keep in mind that the first instruction of the
307 sigtramp code is "pop %eax". If the PC is after this
308 instruction, adjust the returned value accordingly. */
10458914 309 if (pc == get_frame_pc (this_frame))
e7ee86a9
JB		 310 return sp + 4;
311 return sp;
312 }
313
10458914 314 pc = i386_linux_rt_sigtramp_start (this_frame);
e7ee86a9
JB		 315 if (pc)
316 {
acd5c798
MK		 317 CORE_ADDR ucontext_addr;
318
319 /* The sigcontext structure is part of the user context. A
320 pointer to the user context is passed as the third argument
321 to the signal handler. */
322 read_memory (sp + 8, buf, 4);
9fbfb822 323 ucontext_addr = extract_unsigned_integer (buf, 4);
acd5c798 324 return ucontext_addr + I386_LINUX_UCONTEXT_SIGCONTEXT_OFFSET;
e7ee86a9
JB		 325 }
326
8a3fe4f8 327 error (_("Couldn't recognize signal trampoline."));
e7ee86a9
JB		 328 return 0;
329}
330
6441c4a0
MK		 331/* Set the program counter for process PTID to PC. */
332
8201327c 333static void
61a1198a 334i386_linux_write_pc (struct regcache *regcache, CORE_ADDR pc)
6441c4a0 335{
61a1198a 336 regcache_cooked_write_unsigned (regcache, I386_EIP_REGNUM, pc);
6441c4a0
MK		 337
338 /* We must be careful with modifying the program counter. If we
339 just interrupted a system call, the kernel might try to restart
340 it when we resume the inferior. On restarting the system call,
341 the kernel will try backing up the program counter even though it
342 no longer points at the system call. This typically results in a
343 SIGSEGV or SIGILL. We can prevent this by writing `-1' in the
344 "orig_eax" pseudo-register.
345
346 Note that "orig_eax" is saved when setting up a dummy call frame.
347 This means that it is properly restored when that frame is
348 popped, and that the interrupted system call will be restarted
349 when we resume the inferior on return from a function call from
350 within GDB. In all other cases the system call will not be
351 restarted. */
61a1198a 352 regcache_cooked_write_unsigned (regcache, I386_LINUX_ORIG_EAX_REGNUM, -1);
6441c4a0 353}
77fcef51
HZ		 354
355/* Parse the arguments of current system call instruction and record
356 the values of the registers and memory that will be changed into
357 "record_arch_list". This instruction is "int 0x80" (Linux
358 Kernel2.4) or "sysenter" (Linux Kernel 2.6).
359
360 Return -1 if something wrong. */
361
362static struct linux_record_tdep i386_linux_record_tdep;
363
364static int
365i386_linux_intx80_sysenter_record (struct regcache *regcache)
366{
367 int ret;
368 uint32_t tmpu32;
369
370 regcache_raw_read (regcache, I386_EAX_REGNUM, (gdb_byte *)&tmpu32);
371
372 ret = record_linux_system_call (tmpu32, regcache,
373 &i386_linux_record_tdep);
374 if (ret)
375 return ret;
376
377 /* Record the return value of the system call. */
378 if (record_arch_list_add_reg (regcache, I386_EAX_REGNUM))
379 return -1;
380
381 return 0;
382}
6441c4a0 383\f
8201327c 384
e9f1aad5
MK		 385/* The register sets used in GNU/Linux ELF core-dumps are identical to
386 the register sets in `struct user' that are used for a.out
387 core-dumps. These are also used by ptrace(2). The corresponding
388 types are `elf_gregset_t' for the general-purpose registers (with
389 `elf_greg_t' the type of a single GP register) and `elf_fpregset_t'
390 for the floating-point registers.
391
392 Those types used to be available under the names `gregset_t' and
393 `fpregset_t' too, and GDB used those names in the past. But those
394 names are now used for the register sets used in the `mcontext_t'
395 type, which have a different size and layout. */
396
397/* Mapping between the general-purpose registers in `struct user'
398 format and GDB's register cache layout. */
399
400/* From <sys/reg.h>. */
401static int i386_linux_gregset_reg_offset[] =
402{
403 6 * 4, /* %eax */
404 1 * 4, /* %ecx */
405 2 * 4, /* %edx */
406 0 * 4, /* %ebx */
407 15 * 4, /* %esp */
408 5 * 4, /* %ebp */
409 3 * 4, /* %esi */
410 4 * 4, /* %edi */
411 12 * 4, /* %eip */
412 14 * 4, /* %eflags */
413 13 * 4, /* %cs */
414 16 * 4, /* %ss */
415 7 * 4, /* %ds */
416 8 * 4, /* %es */
417 9 * 4, /* %fs */
418 10 * 4, /* %gs */
419 -1, -1, -1, -1, -1, -1, -1, -1,
420 -1, -1, -1, -1, -1, -1, -1, -1,
421 -1, -1, -1, -1, -1, -1, -1, -1,
422 -1,
423 11 * 4 /* "orig_eax" */
424};
425
426/* Mapping between the general-purpose registers in `struct
427 sigcontext' format and GDB's register cache layout. */
428
a3386186 429/* From <asm/sigcontext.h>. */
bb489b3c 430static int i386_linux_sc_reg_offset[] =
a3386186
MK		 431{
432 11 * 4, /* %eax */
433 10 * 4, /* %ecx */
434 9 * 4, /* %edx */
435 8 * 4, /* %ebx */
436 7 * 4, /* %esp */
437 6 * 4, /* %ebp */
438 5 * 4, /* %esi */
439 4 * 4, /* %edi */
440 14 * 4, /* %eip */
441 16 * 4, /* %eflags */
442 15 * 4, /* %cs */
443 18 * 4, /* %ss */
444 3 * 4, /* %ds */
445 2 * 4, /* %es */
446 1 * 4, /* %fs */
447 0 * 4 /* %gs */
448};
449
77fcef51
HZ		 450/* These macros are the size of the type that will be used in a system
451 call. The values of these macros were obtained from Linux Kernel
452 source. */
453#define I386_LINUX_RECORD_SIZE__old_kernel_stat 32
454#define I386_LINUX_RECORD_SIZE_tms 16
455#define I386_LINUX_RECORD_SIZE_loff_t 8
456#define I386_LINUX_RECORD_SIZE_flock 16
457#define I386_LINUX_RECORD_SIZE_oldold_utsname 45
458#define I386_LINUX_RECORD_SIZE_ustat 20
459#define I386_LINUX_RECORD_SIZE_old_sigaction 140
460#define I386_LINUX_RECORD_SIZE_old_sigset_t 128
461#define I386_LINUX_RECORD_SIZE_rlimit 8
462#define I386_LINUX_RECORD_SIZE_rusage 72
463#define I386_LINUX_RECORD_SIZE_timeval 8
464#define I386_LINUX_RECORD_SIZE_timezone 8
465#define I386_LINUX_RECORD_SIZE_old_gid_t 2
466#define I386_LINUX_RECORD_SIZE_old_uid_t 2
467#define I386_LINUX_RECORD_SIZE_fd_set 128
468#define I386_LINUX_RECORD_SIZE_dirent 268
469#define I386_LINUX_RECORD_SIZE_dirent64 276
470#define I386_LINUX_RECORD_SIZE_statfs 64
471#define I386_LINUX_RECORD_SIZE_statfs64 84
472#define I386_LINUX_RECORD_SIZE_sockaddr 16
473#define I386_LINUX_RECORD_SIZE_int 4
474#define I386_LINUX_RECORD_SIZE_long 4
475#define I386_LINUX_RECORD_SIZE_ulong 4
476#define I386_LINUX_RECORD_SIZE_msghdr 28
477#define I386_LINUX_RECORD_SIZE_itimerval 16
478#define I386_LINUX_RECORD_SIZE_stat 88
479#define I386_LINUX_RECORD_SIZE_old_utsname 325
480#define I386_LINUX_RECORD_SIZE_sysinfo 64
481#define I386_LINUX_RECORD_SIZE_msqid_ds 88
482#define I386_LINUX_RECORD_SIZE_shmid_ds 84
483#define I386_LINUX_RECORD_SIZE_new_utsname 390
484#define I386_LINUX_RECORD_SIZE_timex 128
485#define I386_LINUX_RECORD_SIZE_mem_dqinfo 24
486#define I386_LINUX_RECORD_SIZE_if_dqblk 68
487#define I386_LINUX_RECORD_SIZE_fs_quota_stat 68
488#define I386_LINUX_RECORD_SIZE_timespec 8
489#define I386_LINUX_RECORD_SIZE_pollfd 8
490#define I386_LINUX_RECORD_SIZE_NFS_FHSIZE 32
491#define I386_LINUX_RECORD_SIZE_knfsd_fh 132
492#define I386_LINUX_RECORD_SIZE_TASK_COMM_LEN 16
493#define I386_LINUX_RECORD_SIZE_sigaction 140
494#define I386_LINUX_RECORD_SIZE_sigset_t 8
495#define I386_LINUX_RECORD_SIZE_siginfo_t 128
496#define I386_LINUX_RECORD_SIZE_cap_user_data_t 12
497#define I386_LINUX_RECORD_SIZE_stack_t 12
498#define I386_LINUX_RECORD_SIZE_off_t I386_LINUX_RECORD_SIZE_long
499#define I386_LINUX_RECORD_SIZE_stat64 96
500#define I386_LINUX_RECORD_SIZE_gid_t 2
501#define I386_LINUX_RECORD_SIZE_uid_t 2
502#define I386_LINUX_RECORD_SIZE_PAGE_SIZE 4096
503#define I386_LINUX_RECORD_SIZE_flock64 24
504#define I386_LINUX_RECORD_SIZE_user_desc 16
505#define I386_LINUX_RECORD_SIZE_io_event 32
506#define I386_LINUX_RECORD_SIZE_iocb 64
507#define I386_LINUX_RECORD_SIZE_epoll_event 12
508#define I386_LINUX_RECORD_SIZE_itimerspec (I386_LINUX_RECORD_SIZE_timespec * 2)
509#define I386_LINUX_RECORD_SIZE_mq_attr 32
510#define I386_LINUX_RECORD_SIZE_siginfo 128
511#define I386_LINUX_RECORD_SIZE_termios 36
512#define I386_LINUX_RECORD_SIZE_termios2 44
513#define I386_LINUX_RECORD_SIZE_pid_t 4
514#define I386_LINUX_RECORD_SIZE_winsize 8
515#define I386_LINUX_RECORD_SIZE_char 8
516#define I386_LINUX_RECORD_SIZE_serial_struct 60
517#define I386_LINUX_RECORD_SIZE_serial_icounter_struct 80
518#define I386_LINUX_RECORD_SIZE_hayes_esp_config 12
519
520/* These macros are the values of the second argument of system call
521 "sys_ioctl". The values of these macros were obtained from Linux
522 Kernel source. */
523#define I386_LINUX_RECORD_IOCTL_TCGETS 0x5401
524#define I386_LINUX_RECORD_IOCTL_TCSETS 0x5402
525#define I386_LINUX_RECORD_IOCTL_TCSETSW 0x5403
526#define I386_LINUX_RECORD_IOCTL_TCSETSF 0x5404
527#define I386_LINUX_RECORD_IOCTL_TCGETA 0x5405
528#define I386_LINUX_RECORD_IOCTL_TCSETA 0x5406
529#define I386_LINUX_RECORD_IOCTL_TCSETAW 0x5407
530#define I386_LINUX_RECORD_IOCTL_TCSETAF 0x5408
531#define I386_LINUX_RECORD_IOCTL_TCSBRK 0x5409
532#define I386_LINUX_RECORD_IOCTL_TCXONC 0x540A
533#define I386_LINUX_RECORD_IOCTL_TCFLSH 0x540B
534#define I386_LINUX_RECORD_IOCTL_TIOCEXCL 0x540C
535#define I386_LINUX_RECORD_IOCTL_TIOCNXCL 0x540D
536#define I386_LINUX_RECORD_IOCTL_TIOCSCTTY 0x540E
537#define I386_LINUX_RECORD_IOCTL_TIOCGPGRP 0x540F
538#define I386_LINUX_RECORD_IOCTL_TIOCSPGRP 0x5410
539#define I386_LINUX_RECORD_IOCTL_TIOCOUTQ 0x5411
540#define I386_LINUX_RECORD_IOCTL_TIOCSTI 0x5412
541#define I386_LINUX_RECORD_IOCTL_TIOCGWINSZ 0x5413
542#define I386_LINUX_RECORD_IOCTL_TIOCSWINSZ 0x5414
543#define I386_LINUX_RECORD_IOCTL_TIOCMGET 0x5415
544#define I386_LINUX_RECORD_IOCTL_TIOCMBIS 0x5416
545#define I386_LINUX_RECORD_IOCTL_TIOCMBIC 0x5417
546#define I386_LINUX_RECORD_IOCTL_TIOCMSET 0x5418
547#define I386_LINUX_RECORD_IOCTL_TIOCGSOFTCAR 0x5419
548#define I386_LINUX_RECORD_IOCTL_TIOCSSOFTCAR 0x541A
549#define I386_LINUX_RECORD_IOCTL_FIONREAD 0x541B
550#define I386_LINUX_RECORD_IOCTL_TIOCINQ I386_LINUX_RECORD_IOCTL_FIONREAD
551#define I386_LINUX_RECORD_IOCTL_TIOCLINUX 0x541C
552#define I386_LINUX_RECORD_IOCTL_TIOCCONS 0x541D
553#define I386_LINUX_RECORD_IOCTL_TIOCGSERIAL 0x541E
554#define I386_LINUX_RECORD_IOCTL_TIOCSSERIAL 0x541F
555#define I386_LINUX_RECORD_IOCTL_TIOCPKT 0x5420
556#define I386_LINUX_RECORD_IOCTL_FIONBIO 0x5421
557#define I386_LINUX_RECORD_IOCTL_TIOCNOTTY 0x5422
558#define I386_LINUX_RECORD_IOCTL_TIOCSETD 0x5423
559#define I386_LINUX_RECORD_IOCTL_TIOCGETD 0x5424
560#define I386_LINUX_RECORD_IOCTL_TCSBRKP 0x5425
561#define I386_LINUX_RECORD_IOCTL_TIOCTTYGSTRUCT 0x5426
562#define I386_LINUX_RECORD_IOCTL_TIOCSBRK 0x5427
563#define I386_LINUX_RECORD_IOCTL_TIOCCBRK 0x5428
564#define I386_LINUX_RECORD_IOCTL_TIOCGSID 0x5429
565#define I386_LINUX_RECORD_IOCTL_TCGETS2 0x802c542a
566#define I386_LINUX_RECORD_IOCTL_TCSETS2 0x402c542b
567#define I386_LINUX_RECORD_IOCTL_TCSETSW2 0x402c542c
568#define I386_LINUX_RECORD_IOCTL_TCSETSF2 0x402c542d
569#define I386_LINUX_RECORD_IOCTL_TIOCGPTN 0x80045430
570#define I386_LINUX_RECORD_IOCTL_TIOCSPTLCK 0x40045431
571#define I386_LINUX_RECORD_IOCTL_FIONCLEX 0x5450
572#define I386_LINUX_RECORD_IOCTL_FIOCLEX 0x5451
573#define I386_LINUX_RECORD_IOCTL_FIOASYNC 0x5452
574#define I386_LINUX_RECORD_IOCTL_TIOCSERCONFIG 0x5453
575#define I386_LINUX_RECORD_IOCTL_TIOCSERGWILD 0x5454
576#define I386_LINUX_RECORD_IOCTL_TIOCSERSWILD 0x5455
577#define I386_LINUX_RECORD_IOCTL_TIOCGLCKTRMIOS 0x5456
578#define I386_LINUX_RECORD_IOCTL_TIOCSLCKTRMIOS 0x5457
579#define I386_LINUX_RECORD_IOCTL_TIOCSERGSTRUCT 0x5458
580#define I386_LINUX_RECORD_IOCTL_TIOCSERGETLSR 0x5459
581#define I386_LINUX_RECORD_IOCTL_TIOCSERGETMULTI 0x545A
582#define I386_LINUX_RECORD_IOCTL_TIOCSERSETMULTI 0x545B
583#define I386_LINUX_RECORD_IOCTL_TIOCMIWAIT 0x545C
584#define I386_LINUX_RECORD_IOCTL_TIOCGICOUNT 0x545D
585#define I386_LINUX_RECORD_IOCTL_TIOCGHAYESESP 0x545E
586#define I386_LINUX_RECORD_IOCTL_TIOCSHAYESESP 0x545F
587#define I386_LINUX_RECORD_IOCTL_FIOQSIZE 0x5460
588
8201327c
MK		 589static void
590i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
591{
592 struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
593
594 /* GNU/Linux uses ELF. */
595 i386_elf_init_abi (info, gdbarch);
596
8201327c
MK		 597 /* Since we have the extra "orig_eax" register on GNU/Linux, we have
598 to adjust a few things. */
599
600 set_gdbarch_write_pc (gdbarch, i386_linux_write_pc);
bb489b3c 601 set_gdbarch_num_regs (gdbarch, I386_LINUX_NUM_REGS);
8201327c 602 set_gdbarch_register_name (gdbarch, i386_linux_register_name);
38c968cf 603 set_gdbarch_register_reggroup_p (gdbarch, i386_linux_register_reggroup_p);
8201327c 604
e9f1aad5
MK		 605 tdep->gregset_reg_offset = i386_linux_gregset_reg_offset;
606 tdep->gregset_num_regs = ARRAY_SIZE (i386_linux_gregset_reg_offset);
607 tdep->sizeof_gregset = 17 * 4;
608
8201327c
MK		 609 tdep->jb_pc_offset = 20; /* From <bits/setjmp.h>. */
610
911bc6ee 611 tdep->sigtramp_p = i386_linux_sigtramp_p;
b7d15bf7 612 tdep->sigcontext_addr = i386_linux_sigcontext_addr;
a3386186 613 tdep->sc_reg_offset = i386_linux_sc_reg_offset;
bb489b3c 614 tdep->sc_num_regs = ARRAY_SIZE (i386_linux_sc_reg_offset);
8201327c 615
77fcef51
HZ		 616 /* Initialize the i386_linux_record_tdep. */
617 i386_linux_record_tdep.size__old_kernel_stat =
618 I386_LINUX_RECORD_SIZE__old_kernel_stat;
619 i386_linux_record_tdep.size_tms = I386_LINUX_RECORD_SIZE_tms;
620 i386_linux_record_tdep.size_loff_t = I386_LINUX_RECORD_SIZE_loff_t;
621 i386_linux_record_tdep.size_flock = I386_LINUX_RECORD_SIZE_flock;
622 i386_linux_record_tdep.size_oldold_utsname =
623 I386_LINUX_RECORD_SIZE_oldold_utsname;
624 i386_linux_record_tdep.size_ustat = I386_LINUX_RECORD_SIZE_ustat;
625 i386_linux_record_tdep.size_old_sigaction =
626 I386_LINUX_RECORD_SIZE_old_sigaction;
627 i386_linux_record_tdep.size_old_sigset_t =
628 I386_LINUX_RECORD_SIZE_old_sigset_t;
629 i386_linux_record_tdep.size_rlimit = I386_LINUX_RECORD_SIZE_rlimit;
630 i386_linux_record_tdep.size_rusage = I386_LINUX_RECORD_SIZE_rusage;
631 i386_linux_record_tdep.size_timeval = I386_LINUX_RECORD_SIZE_timeval;
632 i386_linux_record_tdep.size_timezone = I386_LINUX_RECORD_SIZE_timezone;
633 i386_linux_record_tdep.size_old_gid_t = I386_LINUX_RECORD_SIZE_old_gid_t;
634 i386_linux_record_tdep.size_old_uid_t = I386_LINUX_RECORD_SIZE_old_uid_t;
635 i386_linux_record_tdep.size_fd_set = I386_LINUX_RECORD_SIZE_fd_set;
636 i386_linux_record_tdep.size_dirent = I386_LINUX_RECORD_SIZE_dirent;
637 i386_linux_record_tdep.size_dirent64 = I386_LINUX_RECORD_SIZE_dirent64;
638 i386_linux_record_tdep.size_statfs = I386_LINUX_RECORD_SIZE_statfs;
639 i386_linux_record_tdep.size_statfs64 = I386_LINUX_RECORD_SIZE_statfs64;
640 i386_linux_record_tdep.size_sockaddr = I386_LINUX_RECORD_SIZE_sockaddr;
641 i386_linux_record_tdep.size_int = I386_LINUX_RECORD_SIZE_int;
642 i386_linux_record_tdep.size_long = I386_LINUX_RECORD_SIZE_long;
643 i386_linux_record_tdep.size_ulong = I386_LINUX_RECORD_SIZE_ulong;
644 i386_linux_record_tdep.size_msghdr = I386_LINUX_RECORD_SIZE_msghdr;
645 i386_linux_record_tdep.size_itimerval = I386_LINUX_RECORD_SIZE_itimerval;
646 i386_linux_record_tdep.size_stat = I386_LINUX_RECORD_SIZE_stat;
647 i386_linux_record_tdep.size_old_utsname =
648 I386_LINUX_RECORD_SIZE_old_utsname;
649 i386_linux_record_tdep.size_sysinfo = I386_LINUX_RECORD_SIZE_sysinfo;
650 i386_linux_record_tdep.size_msqid_ds = I386_LINUX_RECORD_SIZE_msqid_ds;
651 i386_linux_record_tdep.size_shmid_ds = I386_LINUX_RECORD_SIZE_shmid_ds;
652 i386_linux_record_tdep.size_new_utsname =
653 I386_LINUX_RECORD_SIZE_new_utsname;
654 i386_linux_record_tdep.size_timex = I386_LINUX_RECORD_SIZE_timex;
655 i386_linux_record_tdep.size_mem_dqinfo = I386_LINUX_RECORD_SIZE_mem_dqinfo;
656 i386_linux_record_tdep.size_if_dqblk = I386_LINUX_RECORD_SIZE_if_dqblk;
657 i386_linux_record_tdep.size_fs_quota_stat =
658 I386_LINUX_RECORD_SIZE_fs_quota_stat;
659 i386_linux_record_tdep.size_timespec = I386_LINUX_RECORD_SIZE_timespec;
660 i386_linux_record_tdep.size_pollfd = I386_LINUX_RECORD_SIZE_pollfd;
661 i386_linux_record_tdep.size_NFS_FHSIZE = I386_LINUX_RECORD_SIZE_NFS_FHSIZE;
662 i386_linux_record_tdep.size_knfsd_fh = I386_LINUX_RECORD_SIZE_knfsd_fh;
663 i386_linux_record_tdep.size_TASK_COMM_LEN =
664 I386_LINUX_RECORD_SIZE_TASK_COMM_LEN;
665 i386_linux_record_tdep.size_sigaction = I386_LINUX_RECORD_SIZE_sigaction;
666 i386_linux_record_tdep.size_sigset_t = I386_LINUX_RECORD_SIZE_sigset_t;
667 i386_linux_record_tdep.size_siginfo_t = I386_LINUX_RECORD_SIZE_siginfo_t;
668 i386_linux_record_tdep.size_cap_user_data_t =
669 I386_LINUX_RECORD_SIZE_cap_user_data_t;
670 i386_linux_record_tdep.size_stack_t = I386_LINUX_RECORD_SIZE_stack_t;
671 i386_linux_record_tdep.size_off_t = I386_LINUX_RECORD_SIZE_off_t;
672 i386_linux_record_tdep.size_stat64 = I386_LINUX_RECORD_SIZE_stat64;
673 i386_linux_record_tdep.size_gid_t = I386_LINUX_RECORD_SIZE_gid_t;
674 i386_linux_record_tdep.size_uid_t = I386_LINUX_RECORD_SIZE_uid_t;
675 i386_linux_record_tdep.size_PAGE_SIZE = I386_LINUX_RECORD_SIZE_PAGE_SIZE;
676 i386_linux_record_tdep.size_flock64 = I386_LINUX_RECORD_SIZE_flock64;
677 i386_linux_record_tdep.size_user_desc = I386_LINUX_RECORD_SIZE_user_desc;
678 i386_linux_record_tdep.size_io_event = I386_LINUX_RECORD_SIZE_io_event;
679 i386_linux_record_tdep.size_iocb = I386_LINUX_RECORD_SIZE_iocb;
680 i386_linux_record_tdep.size_epoll_event =
681 I386_LINUX_RECORD_SIZE_epoll_event;
682 i386_linux_record_tdep.size_itimerspec = I386_LINUX_RECORD_SIZE_itimerspec;
683 i386_linux_record_tdep.size_mq_attr = I386_LINUX_RECORD_SIZE_mq_attr;
684 i386_linux_record_tdep.size_siginfo = I386_LINUX_RECORD_SIZE_siginfo;
685 i386_linux_record_tdep.size_termios = I386_LINUX_RECORD_SIZE_termios;
686 i386_linux_record_tdep.size_termios2 = I386_LINUX_RECORD_SIZE_termios2;
687 i386_linux_record_tdep.size_pid_t = I386_LINUX_RECORD_SIZE_pid_t;
688 i386_linux_record_tdep.size_winsize = I386_LINUX_RECORD_SIZE_winsize;
689 i386_linux_record_tdep.size_char = I386_LINUX_RECORD_SIZE_char;
690 i386_linux_record_tdep.size_serial_struct =
691 I386_LINUX_RECORD_SIZE_serial_struct;
692 i386_linux_record_tdep.size_serial_icounter_struct =
693 I386_LINUX_RECORD_SIZE_serial_icounter_struct;
694 i386_linux_record_tdep.size_hayes_esp_config =
695 I386_LINUX_RECORD_SIZE_hayes_esp_config;
696
697 i386_linux_record_tdep.ioctl_TCGETS = I386_LINUX_RECORD_IOCTL_TCGETS;
698 i386_linux_record_tdep.ioctl_TCSETS = I386_LINUX_RECORD_IOCTL_TCSETS;
699 i386_linux_record_tdep.ioctl_TCSETSW = I386_LINUX_RECORD_IOCTL_TCSETSW;
700 i386_linux_record_tdep.ioctl_TCSETSF = I386_LINUX_RECORD_IOCTL_TCSETSF;
701 i386_linux_record_tdep.ioctl_TCGETA = I386_LINUX_RECORD_IOCTL_TCGETA;
702 i386_linux_record_tdep.ioctl_TCSETA = I386_LINUX_RECORD_IOCTL_TCSETA;
703 i386_linux_record_tdep.ioctl_TCSETAW = I386_LINUX_RECORD_IOCTL_TCSETAW;
704 i386_linux_record_tdep.ioctl_TCSETAF = I386_LINUX_RECORD_IOCTL_TCSETAF;
705 i386_linux_record_tdep.ioctl_TCSBRK = I386_LINUX_RECORD_IOCTL_TCSBRK;
706 i386_linux_record_tdep.ioctl_TCXONC = I386_LINUX_RECORD_IOCTL_TCXONC;
707 i386_linux_record_tdep.ioctl_TCFLSH = I386_LINUX_RECORD_IOCTL_TCFLSH;
708 i386_linux_record_tdep.ioctl_TIOCEXCL = I386_LINUX_RECORD_IOCTL_TIOCEXCL;
709 i386_linux_record_tdep.ioctl_TIOCNXCL = I386_LINUX_RECORD_IOCTL_TIOCNXCL;
710 i386_linux_record_tdep.ioctl_TIOCSCTTY = I386_LINUX_RECORD_IOCTL_TIOCSCTTY;
711 i386_linux_record_tdep.ioctl_TIOCGPGRP = I386_LINUX_RECORD_IOCTL_TIOCGPGRP;
712 i386_linux_record_tdep.ioctl_TIOCSPGRP = I386_LINUX_RECORD_IOCTL_TIOCSPGRP;
713 i386_linux_record_tdep.ioctl_TIOCOUTQ = I386_LINUX_RECORD_IOCTL_TIOCOUTQ;
714 i386_linux_record_tdep.ioctl_TIOCSTI = I386_LINUX_RECORD_IOCTL_TIOCSTI;
715 i386_linux_record_tdep.ioctl_TIOCGWINSZ =
716 I386_LINUX_RECORD_IOCTL_TIOCGWINSZ;
717 i386_linux_record_tdep.ioctl_TIOCSWINSZ =
718 I386_LINUX_RECORD_IOCTL_TIOCSWINSZ;
719 i386_linux_record_tdep.ioctl_TIOCMGET = I386_LINUX_RECORD_IOCTL_TIOCMGET;
720 i386_linux_record_tdep.ioctl_TIOCMBIS = I386_LINUX_RECORD_IOCTL_TIOCMBIS;
721 i386_linux_record_tdep.ioctl_TIOCMBIC = I386_LINUX_RECORD_IOCTL_TIOCMBIC;
722 i386_linux_record_tdep.ioctl_TIOCMSET = I386_LINUX_RECORD_IOCTL_TIOCMSET;
723 i386_linux_record_tdep.ioctl_TIOCGSOFTCAR =
724 I386_LINUX_RECORD_IOCTL_TIOCGSOFTCAR;
725 i386_linux_record_tdep.ioctl_TIOCSSOFTCAR =
726 I386_LINUX_RECORD_IOCTL_TIOCSSOFTCAR;
727 i386_linux_record_tdep.ioctl_FIONREAD = I386_LINUX_RECORD_IOCTL_FIONREAD;
728 i386_linux_record_tdep.ioctl_TIOCINQ = I386_LINUX_RECORD_IOCTL_TIOCINQ;
729 i386_linux_record_tdep.ioctl_TIOCLINUX = I386_LINUX_RECORD_IOCTL_TIOCLINUX;
730 i386_linux_record_tdep.ioctl_TIOCCONS = I386_LINUX_RECORD_IOCTL_TIOCCONS;
731 i386_linux_record_tdep.ioctl_TIOCGSERIAL =
732 I386_LINUX_RECORD_IOCTL_TIOCGSERIAL;
733 i386_linux_record_tdep.ioctl_TIOCSSERIAL =
734 I386_LINUX_RECORD_IOCTL_TIOCSSERIAL;
735 i386_linux_record_tdep.ioctl_TIOCPKT = I386_LINUX_RECORD_IOCTL_TIOCPKT;
736 i386_linux_record_tdep.ioctl_FIONBIO = I386_LINUX_RECORD_IOCTL_FIONBIO;
737 i386_linux_record_tdep.ioctl_TIOCNOTTY = I386_LINUX_RECORD_IOCTL_TIOCNOTTY;
738 i386_linux_record_tdep.ioctl_TIOCSETD = I386_LINUX_RECORD_IOCTL_TIOCSETD;
739 i386_linux_record_tdep.ioctl_TIOCGETD = I386_LINUX_RECORD_IOCTL_TIOCGETD;
740 i386_linux_record_tdep.ioctl_TCSBRKP = I386_LINUX_RECORD_IOCTL_TCSBRKP;
741 i386_linux_record_tdep.ioctl_TIOCTTYGSTRUCT =
742 I386_LINUX_RECORD_IOCTL_TIOCTTYGSTRUCT;
743 i386_linux_record_tdep.ioctl_TIOCSBRK = I386_LINUX_RECORD_IOCTL_TIOCSBRK;
744 i386_linux_record_tdep.ioctl_TIOCCBRK = I386_LINUX_RECORD_IOCTL_TIOCCBRK;
745 i386_linux_record_tdep.ioctl_TIOCGSID = I386_LINUX_RECORD_IOCTL_TIOCGSID;
746 i386_linux_record_tdep.ioctl_TCGETS2 = I386_LINUX_RECORD_IOCTL_TCGETS2;
747 i386_linux_record_tdep.ioctl_TCSETS2 = I386_LINUX_RECORD_IOCTL_TCSETS2;
748 i386_linux_record_tdep.ioctl_TCSETSW2 = I386_LINUX_RECORD_IOCTL_TCSETSW2;
749 i386_linux_record_tdep.ioctl_TCSETSF2 = I386_LINUX_RECORD_IOCTL_TCSETSF2;
750 i386_linux_record_tdep.ioctl_TIOCGPTN = I386_LINUX_RECORD_IOCTL_TIOCGPTN;
751 i386_linux_record_tdep.ioctl_TIOCSPTLCK =
752 I386_LINUX_RECORD_IOCTL_TIOCSPTLCK;
753 i386_linux_record_tdep.ioctl_FIONCLEX = I386_LINUX_RECORD_IOCTL_FIONCLEX;
754 i386_linux_record_tdep.ioctl_FIOCLEX = I386_LINUX_RECORD_IOCTL_FIOCLEX;
755 i386_linux_record_tdep.ioctl_FIOASYNC = I386_LINUX_RECORD_IOCTL_FIOASYNC;
756 i386_linux_record_tdep.ioctl_TIOCSERCONFIG =
757 I386_LINUX_RECORD_IOCTL_TIOCSERCONFIG;
758 i386_linux_record_tdep.ioctl_TIOCSERGWILD =
759 I386_LINUX_RECORD_IOCTL_TIOCSERGWILD;
760 i386_linux_record_tdep.ioctl_TIOCSERSWILD =
761 I386_LINUX_RECORD_IOCTL_TIOCSERSWILD;
762 i386_linux_record_tdep.ioctl_TIOCGLCKTRMIOS =
763 I386_LINUX_RECORD_IOCTL_TIOCGLCKTRMIOS;
764 i386_linux_record_tdep.ioctl_TIOCSLCKTRMIOS =
765 I386_LINUX_RECORD_IOCTL_TIOCSLCKTRMIOS;
766 i386_linux_record_tdep.ioctl_TIOCSERGSTRUCT =
767 I386_LINUX_RECORD_IOCTL_TIOCSERGSTRUCT;
768 i386_linux_record_tdep.ioctl_TIOCSERGETLSR =
769 I386_LINUX_RECORD_IOCTL_TIOCSERGETLSR;
770 i386_linux_record_tdep.ioctl_TIOCSERGETMULTI =
771 I386_LINUX_RECORD_IOCTL_TIOCSERGETMULTI;
772 i386_linux_record_tdep.ioctl_TIOCSERSETMULTI =
773 I386_LINUX_RECORD_IOCTL_TIOCSERSETMULTI;
774 i386_linux_record_tdep.ioctl_TIOCMIWAIT =
775 I386_LINUX_RECORD_IOCTL_TIOCMIWAIT;
776 i386_linux_record_tdep.ioctl_TIOCGICOUNT =
777 I386_LINUX_RECORD_IOCTL_TIOCGICOUNT;
778 i386_linux_record_tdep.ioctl_TIOCGHAYESESP =
779 I386_LINUX_RECORD_IOCTL_TIOCGHAYESESP;
780 i386_linux_record_tdep.ioctl_TIOCSHAYESESP =
781 I386_LINUX_RECORD_IOCTL_TIOCSHAYESESP;
782 i386_linux_record_tdep.ioctl_FIOQSIZE = I386_LINUX_RECORD_IOCTL_FIOQSIZE;
783
784 i386_linux_record_tdep.arg1 = I386_EBX_REGNUM;
785 i386_linux_record_tdep.arg2 = I386_ECX_REGNUM;
786 i386_linux_record_tdep.arg3 = I386_EDX_REGNUM;
787 i386_linux_record_tdep.arg4 = I386_ESI_REGNUM;
788 i386_linux_record_tdep.arg5 = I386_EDI_REGNUM;
789
790 tdep->i386_intx80_record = i386_linux_intx80_sysenter_record;
791 tdep->i386_sysenter_record = i386_linux_intx80_sysenter_record;
792
203c3895
UW		 793 /* N_FUN symbols in shared libaries have 0 for their values and need
794 to be relocated. */
795 set_gdbarch_sofun_address_maybe_missing (gdbarch, 1);
796
871fbe6a 797 /* GNU/Linux uses SVR4-style shared libraries. */
982e9687 798 set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
871fbe6a
MK		 799 set_solib_svr4_fetch_link_map_offsets
800 (gdbarch, svr4_ilp32_fetch_link_map_offsets);
801
802 /* GNU/Linux uses the dynamic linker included in the GNU C Library. */
bb41a796 803 set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
12b8a2cb
DJ		 804
805 dwarf2_frame_set_signal_frame_p (gdbarch, i386_linux_dwarf_signal_frame_p);
b2756930
KB		 806
807 /* Enable TLS support. */
808 set_gdbarch_fetch_tls_load_module_address (gdbarch,
809 svr4_fetch_objfile_link_map);
237fc4c9 810
17ea7499
CES		 811 /* Install supported register note sections. */
812 set_gdbarch_core_regset_sections (gdbarch, i386_linux_regset_sections);
813
237fc4c9
PA		 814 /* Displaced stepping. */
815 set_gdbarch_displaced_step_copy_insn (gdbarch,
816 simple_displaced_step_copy_insn);
817 set_gdbarch_displaced_step_fixup (gdbarch, i386_displaced_step_fixup);
818 set_gdbarch_displaced_step_free_closure (gdbarch,
819 simple_displaced_step_free_closure);
820 set_gdbarch_displaced_step_location (gdbarch,
821 displaced_step_at_entry_point);
4aa995e1
PA		 822
823 set_gdbarch_get_siginfo_type (gdbarch, linux_get_siginfo_type);
8201327c
MK		 824}
825
826/* Provide a prototype to silence -Wmissing-prototypes. */
827extern void _initialize_i386_linux_tdep (void);
828
829void
830_initialize_i386_linux_tdep (void)
831{
05816f70 832 gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_LINUX,
8201327c
MK		 833 i386_linux_init_abi);
834}
GDB Binutils - Deliverables
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