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1 | /* Native-dependent code for GNU/Linux x86 (i386 and x86-64). |
2 | ||
3 | Copyright (C) 1999-2014 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "inferior.h" | |
22 | #include "elf/common.h" | |
23 | #include "gdb_proc_service.h" | |
24 | #include <sys/ptrace.h> | |
25 | #include <sys/user.h> | |
26 | #include <sys/procfs.h> | |
27 | ||
df7e5265 | 28 | #include "x86-nat.h" |
040baaf6 GB |
29 | #include "linux-nat.h" |
30 | #ifndef __x86_64__ | |
31 | #include "i386-linux-nat.h" | |
32 | #endif | |
33 | #include "x86-linux-nat.h" | |
34 | #include "i386-linux-tdep.h" | |
35 | #ifdef __x86_64__ | |
36 | #include "amd64-linux-tdep.h" | |
37 | #endif | |
df7e5265 | 38 | #include "x86-xstate.h" |
040baaf6 GB |
39 | #include "nat/linux-btrace.h" |
40 | ||
41 | /* Per-thread arch-specific data we want to keep. */ | |
42 | ||
43 | struct arch_lwp_info | |
44 | { | |
45 | /* Non-zero if our copy differs from what's recorded in the thread. */ | |
46 | int debug_registers_changed; | |
47 | }; | |
48 | ||
49 | /* Does the current host support PTRACE_GETREGSET? */ | |
50 | int have_ptrace_getregset = -1; | |
51 | \f | |
52 | ||
53 | /* Support for debug registers. */ | |
54 | ||
55 | /* Get debug register REGNUM value from only the one LWP of PTID. */ | |
56 | ||
57 | static unsigned long | |
58 | x86_linux_dr_get (ptid_t ptid, int regnum) | |
59 | { | |
60 | int tid; | |
61 | unsigned long value; | |
62 | ||
5ee44bfa | 63 | gdb_assert (ptid_lwp_p (ptid)); |
040baaf6 | 64 | tid = ptid_get_lwp (ptid); |
040baaf6 GB |
65 | |
66 | errno = 0; | |
67 | value = ptrace (PTRACE_PEEKUSER, tid, | |
68 | offsetof (struct user, u_debugreg[regnum]), 0); | |
69 | if (errno != 0) | |
70 | perror_with_name (_("Couldn't read debug register")); | |
71 | ||
72 | return value; | |
73 | } | |
74 | ||
75 | /* Set debug register REGNUM to VALUE in only the one LWP of PTID. */ | |
76 | ||
77 | static void | |
78 | x86_linux_dr_set (ptid_t ptid, int regnum, unsigned long value) | |
79 | { | |
80 | int tid; | |
81 | ||
5ee44bfa | 82 | gdb_assert (ptid_lwp_p (ptid)); |
040baaf6 | 83 | tid = ptid_get_lwp (ptid); |
040baaf6 GB |
84 | |
85 | errno = 0; | |
86 | ptrace (PTRACE_POKEUSER, tid, | |
87 | offsetof (struct user, u_debugreg[regnum]), value); | |
88 | if (errno != 0) | |
89 | perror_with_name (_("Couldn't write debug register")); | |
90 | } | |
91 | ||
92 | /* Return the inferior's debug register REGNUM. */ | |
93 | ||
94 | static CORE_ADDR | |
95 | x86_linux_dr_get_addr (int regnum) | |
96 | { | |
97 | /* DR6 and DR7 are retrieved with some other way. */ | |
98 | gdb_assert (DR_FIRSTADDR <= regnum && regnum <= DR_LASTADDR); | |
99 | ||
100 | return x86_linux_dr_get (inferior_ptid, regnum); | |
101 | } | |
102 | ||
103 | /* Return the inferior's DR7 debug control register. */ | |
104 | ||
105 | static unsigned long | |
106 | x86_linux_dr_get_control (void) | |
107 | { | |
108 | return x86_linux_dr_get (inferior_ptid, DR_CONTROL); | |
109 | } | |
110 | ||
111 | /* Get DR_STATUS from only the one LWP of INFERIOR_PTID. */ | |
112 | ||
113 | static unsigned long | |
114 | x86_linux_dr_get_status (void) | |
115 | { | |
116 | return x86_linux_dr_get (inferior_ptid, DR_STATUS); | |
117 | } | |
118 | ||
119 | /* Callback for iterate_over_lwps. Update the debug registers of | |
120 | LWP. */ | |
121 | ||
122 | static int | |
123 | update_debug_registers_callback (struct lwp_info *lwp, void *arg) | |
124 | { | |
125 | if (lwp->arch_private == NULL) | |
126 | lwp->arch_private = XCNEW (struct arch_lwp_info); | |
127 | ||
128 | /* The actual update is done later just before resuming the lwp, we | |
129 | just mark that the registers need updating. */ | |
130 | lwp->arch_private->debug_registers_changed = 1; | |
131 | ||
132 | /* If the lwp isn't stopped, force it to momentarily pause, so we | |
133 | can update its debug registers. */ | |
134 | if (!lwp->stopped) | |
135 | linux_stop_lwp (lwp); | |
136 | ||
137 | /* Continue the iteration. */ | |
138 | return 0; | |
139 | } | |
140 | ||
141 | /* Set DR_CONTROL to CONTROL in all LWPs of the current inferior. */ | |
142 | ||
143 | static void | |
144 | x86_linux_dr_set_control (unsigned long control) | |
145 | { | |
146 | ptid_t pid_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
147 | ||
148 | iterate_over_lwps (pid_ptid, update_debug_registers_callback, NULL); | |
149 | } | |
150 | ||
151 | /* Set address REGNUM (zero based) to ADDR in all LWPs of the current | |
152 | inferior. */ | |
153 | ||
154 | static void | |
155 | x86_linux_dr_set_addr (int regnum, CORE_ADDR addr) | |
156 | { | |
157 | ptid_t pid_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
158 | ||
159 | gdb_assert (regnum >= 0 && regnum <= DR_LASTADDR - DR_FIRSTADDR); | |
160 | ||
161 | iterate_over_lwps (pid_ptid, update_debug_registers_callback, NULL); | |
162 | } | |
163 | ||
164 | /* Called when resuming a thread. | |
165 | If the debug regs have changed, update the thread's copies. */ | |
166 | ||
167 | static void | |
168 | x86_linux_prepare_to_resume (struct lwp_info *lwp) | |
169 | { | |
170 | int clear_status = 0; | |
171 | ||
172 | /* NULL means this is the main thread still going through the shell, | |
173 | or, no watchpoint has been set yet. In that case, there's | |
174 | nothing to do. */ | |
175 | if (lwp->arch_private == NULL) | |
176 | return; | |
177 | ||
178 | if (lwp->arch_private->debug_registers_changed) | |
179 | { | |
df7e5265 GB |
180 | struct x86_debug_reg_state *state |
181 | = x86_debug_reg_state (ptid_get_pid (lwp->ptid)); | |
040baaf6 GB |
182 | int i; |
183 | ||
184 | /* On Linux kernel before 2.6.33 commit | |
185 | 72f674d203cd230426437cdcf7dd6f681dad8b0d | |
186 | if you enable a breakpoint by the DR_CONTROL bits you need to have | |
187 | already written the corresponding DR_FIRSTADDR...DR_LASTADDR registers. | |
188 | ||
189 | Ensure DR_CONTROL gets written as the very last register here. */ | |
190 | ||
191 | /* Clear DR_CONTROL first. In some cases, setting DR0-3 to a | |
192 | value that doesn't match what is enabled in DR_CONTROL | |
193 | results in EINVAL. */ | |
194 | x86_linux_dr_set (lwp->ptid, DR_CONTROL, 0); | |
195 | ||
97ea6506 | 196 | ALL_DEBUG_ADDRESS_REGISTERS (i) |
040baaf6 GB |
197 | if (state->dr_ref_count[i] > 0) |
198 | { | |
199 | x86_linux_dr_set (lwp->ptid, i, state->dr_mirror[i]); | |
200 | ||
201 | /* If we're setting a watchpoint, any change the inferior | |
202 | had done itself to the debug registers needs to be | |
df7e5265 | 203 | discarded, otherwise, x86_stopped_data_address can get |
040baaf6 GB |
204 | confused. */ |
205 | clear_status = 1; | |
206 | } | |
207 | ||
208 | /* If DR_CONTROL is supposed to be zero, we've already set it | |
209 | above. */ | |
210 | if (state->dr_control_mirror != 0) | |
211 | x86_linux_dr_set (lwp->ptid, DR_CONTROL, state->dr_control_mirror); | |
212 | ||
213 | lwp->arch_private->debug_registers_changed = 0; | |
214 | } | |
215 | ||
216 | if (clear_status || lwp->stopped_by_watchpoint) | |
217 | x86_linux_dr_set (lwp->ptid, DR_STATUS, 0); | |
218 | } | |
219 | ||
220 | static void | |
221 | x86_linux_new_thread (struct lwp_info *lp) | |
222 | { | |
223 | struct arch_lwp_info *info = XCNEW (struct arch_lwp_info); | |
224 | ||
225 | info->debug_registers_changed = 1; | |
226 | ||
227 | lp->arch_private = info; | |
228 | } | |
229 | \f | |
230 | ||
231 | /* linux_nat_new_fork hook. */ | |
232 | ||
233 | static void | |
234 | x86_linux_new_fork (struct lwp_info *parent, pid_t child_pid) | |
235 | { | |
236 | pid_t parent_pid; | |
df7e5265 GB |
237 | struct x86_debug_reg_state *parent_state; |
238 | struct x86_debug_reg_state *child_state; | |
040baaf6 GB |
239 | |
240 | /* NULL means no watchpoint has ever been set in the parent. In | |
241 | that case, there's nothing to do. */ | |
242 | if (parent->arch_private == NULL) | |
243 | return; | |
244 | ||
245 | /* Linux kernel before 2.6.33 commit | |
246 | 72f674d203cd230426437cdcf7dd6f681dad8b0d | |
247 | will inherit hardware debug registers from parent | |
248 | on fork/vfork/clone. Newer Linux kernels create such tasks with | |
249 | zeroed debug registers. | |
250 | ||
251 | GDB core assumes the child inherits the watchpoints/hw | |
252 | breakpoints of the parent, and will remove them all from the | |
253 | forked off process. Copy the debug registers mirrors into the | |
254 | new process so that all breakpoints and watchpoints can be | |
255 | removed together. The debug registers mirror will become zeroed | |
256 | in the end before detaching the forked off process, thus making | |
257 | this compatible with older Linux kernels too. */ | |
258 | ||
259 | parent_pid = ptid_get_pid (parent->ptid); | |
df7e5265 GB |
260 | parent_state = x86_debug_reg_state (parent_pid); |
261 | child_state = x86_debug_reg_state (child_pid); | |
040baaf6 GB |
262 | *child_state = *parent_state; |
263 | } | |
264 | \f | |
265 | ||
266 | static void (*super_post_startup_inferior) (struct target_ops *self, | |
267 | ptid_t ptid); | |
268 | ||
269 | static void | |
270 | x86_linux_child_post_startup_inferior (struct target_ops *self, ptid_t ptid) | |
271 | { | |
df7e5265 | 272 | x86_cleanup_dregs (); |
040baaf6 GB |
273 | super_post_startup_inferior (self, ptid); |
274 | } | |
275 | ||
276 | #ifdef __x86_64__ | |
277 | /* Value of CS segment register: | |
278 | 64bit process: 0x33 | |
279 | 32bit process: 0x23 */ | |
280 | #define AMD64_LINUX_USER64_CS 0x33 | |
281 | ||
282 | /* Value of DS segment register: | |
283 | LP64 process: 0x0 | |
284 | X32 process: 0x2b */ | |
285 | #define AMD64_LINUX_X32_DS 0x2b | |
286 | #endif | |
287 | ||
288 | /* Get Linux/x86 target description from running target. */ | |
289 | ||
290 | static const struct target_desc * | |
291 | x86_linux_read_description (struct target_ops *ops) | |
292 | { | |
293 | int tid; | |
294 | int is_64bit = 0; | |
295 | #ifdef __x86_64__ | |
296 | int is_x32; | |
297 | #endif | |
298 | static uint64_t xcr0; | |
299 | uint64_t xcr0_features_bits; | |
300 | ||
301 | /* GNU/Linux LWP ID's are process ID's. */ | |
302 | tid = ptid_get_lwp (inferior_ptid); | |
303 | if (tid == 0) | |
304 | tid = ptid_get_pid (inferior_ptid); /* Not a threaded program. */ | |
305 | ||
306 | #ifdef __x86_64__ | |
307 | { | |
308 | unsigned long cs; | |
309 | unsigned long ds; | |
310 | ||
311 | /* Get CS register. */ | |
312 | errno = 0; | |
313 | cs = ptrace (PTRACE_PEEKUSER, tid, | |
314 | offsetof (struct user_regs_struct, cs), 0); | |
315 | if (errno != 0) | |
316 | perror_with_name (_("Couldn't get CS register")); | |
317 | ||
318 | is_64bit = cs == AMD64_LINUX_USER64_CS; | |
319 | ||
320 | /* Get DS register. */ | |
321 | errno = 0; | |
322 | ds = ptrace (PTRACE_PEEKUSER, tid, | |
323 | offsetof (struct user_regs_struct, ds), 0); | |
324 | if (errno != 0) | |
325 | perror_with_name (_("Couldn't get DS register")); | |
326 | ||
327 | is_x32 = ds == AMD64_LINUX_X32_DS; | |
328 | ||
329 | if (sizeof (void *) == 4 && is_64bit && !is_x32) | |
330 | error (_("Can't debug 64-bit process with 32-bit GDB")); | |
331 | } | |
332 | #elif HAVE_PTRACE_GETFPXREGS | |
333 | if (have_ptrace_getfpxregs == -1) | |
334 | { | |
335 | elf_fpxregset_t fpxregs; | |
336 | ||
337 | if (ptrace (PTRACE_GETFPXREGS, tid, 0, (int) &fpxregs) < 0) | |
338 | { | |
339 | have_ptrace_getfpxregs = 0; | |
340 | have_ptrace_getregset = 0; | |
341 | return tdesc_i386_mmx_linux; | |
342 | } | |
343 | } | |
344 | #endif | |
345 | ||
346 | if (have_ptrace_getregset == -1) | |
347 | { | |
df7e5265 | 348 | uint64_t xstateregs[(X86_XSTATE_SSE_SIZE / sizeof (uint64_t))]; |
040baaf6 GB |
349 | struct iovec iov; |
350 | ||
351 | iov.iov_base = xstateregs; | |
352 | iov.iov_len = sizeof (xstateregs); | |
353 | ||
354 | /* Check if PTRACE_GETREGSET works. */ | |
355 | if (ptrace (PTRACE_GETREGSET, tid, | |
356 | (unsigned int) NT_X86_XSTATE, &iov) < 0) | |
357 | have_ptrace_getregset = 0; | |
358 | else | |
359 | { | |
360 | have_ptrace_getregset = 1; | |
361 | ||
362 | /* Get XCR0 from XSAVE extended state. */ | |
363 | xcr0 = xstateregs[(I386_LINUX_XSAVE_XCR0_OFFSET | |
364 | / sizeof (uint64_t))]; | |
365 | } | |
366 | } | |
367 | ||
368 | /* Check the native XCR0 only if PTRACE_GETREGSET is available. If | |
369 | PTRACE_GETREGSET is not available then set xcr0_features_bits to | |
370 | zero so that the "no-features" descriptions are returned by the | |
371 | switches below. */ | |
372 | if (have_ptrace_getregset) | |
df7e5265 | 373 | xcr0_features_bits = xcr0 & X86_XSTATE_ALL_MASK; |
040baaf6 GB |
374 | else |
375 | xcr0_features_bits = 0; | |
376 | ||
377 | if (is_64bit) | |
378 | { | |
379 | #ifdef __x86_64__ | |
380 | switch (xcr0_features_bits) | |
381 | { | |
df7e5265 GB |
382 | case X86_XSTATE_MPX_AVX512_MASK: |
383 | case X86_XSTATE_AVX512_MASK: | |
040baaf6 GB |
384 | if (is_x32) |
385 | return tdesc_x32_avx512_linux; | |
386 | else | |
387 | return tdesc_amd64_avx512_linux; | |
df7e5265 | 388 | case X86_XSTATE_MPX_MASK: |
040baaf6 GB |
389 | if (is_x32) |
390 | return tdesc_x32_avx_linux; /* No MPX on x32 using AVX. */ | |
391 | else | |
392 | return tdesc_amd64_mpx_linux; | |
df7e5265 | 393 | case X86_XSTATE_AVX_MASK: |
040baaf6 GB |
394 | if (is_x32) |
395 | return tdesc_x32_avx_linux; | |
396 | else | |
397 | return tdesc_amd64_avx_linux; | |
398 | default: | |
399 | if (is_x32) | |
400 | return tdesc_x32_linux; | |
401 | else | |
402 | return tdesc_amd64_linux; | |
403 | } | |
404 | #endif | |
405 | } | |
406 | else | |
407 | { | |
408 | switch (xcr0_features_bits) | |
409 | { | |
df7e5265 GB |
410 | case X86_XSTATE_MPX_AVX512_MASK: |
411 | case X86_XSTATE_AVX512_MASK: | |
040baaf6 | 412 | return tdesc_i386_avx512_linux; |
df7e5265 | 413 | case X86_XSTATE_MPX_MASK: |
040baaf6 | 414 | return tdesc_i386_mpx_linux; |
df7e5265 | 415 | case X86_XSTATE_AVX_MASK: |
040baaf6 GB |
416 | return tdesc_i386_avx_linux; |
417 | default: | |
418 | return tdesc_i386_linux; | |
419 | } | |
420 | } | |
421 | ||
422 | gdb_assert_not_reached ("failed to return tdesc"); | |
423 | } | |
424 | \f | |
425 | ||
426 | /* Enable branch tracing. */ | |
427 | ||
428 | static struct btrace_target_info * | |
429 | x86_linux_enable_btrace (struct target_ops *self, ptid_t ptid) | |
430 | { | |
431 | struct btrace_target_info *tinfo; | |
432 | struct gdbarch *gdbarch; | |
433 | ||
434 | errno = 0; | |
435 | tinfo = linux_enable_btrace (ptid); | |
436 | ||
437 | if (tinfo == NULL) | |
438 | error (_("Could not enable branch tracing for %s: %s."), | |
439 | target_pid_to_str (ptid), safe_strerror (errno)); | |
440 | ||
441 | /* Fill in the size of a pointer in bits. */ | |
442 | gdbarch = target_thread_architecture (ptid); | |
443 | tinfo->ptr_bits = gdbarch_ptr_bit (gdbarch); | |
444 | ||
445 | return tinfo; | |
446 | } | |
447 | ||
448 | /* Disable branch tracing. */ | |
449 | ||
450 | static void | |
451 | x86_linux_disable_btrace (struct target_ops *self, | |
452 | struct btrace_target_info *tinfo) | |
453 | { | |
454 | enum btrace_error errcode = linux_disable_btrace (tinfo); | |
455 | ||
456 | if (errcode != BTRACE_ERR_NONE) | |
457 | error (_("Could not disable branch tracing.")); | |
458 | } | |
459 | ||
460 | /* Teardown branch tracing. */ | |
461 | ||
462 | static void | |
463 | x86_linux_teardown_btrace (struct target_ops *self, | |
464 | struct btrace_target_info *tinfo) | |
465 | { | |
466 | /* Ignore errors. */ | |
467 | linux_disable_btrace (tinfo); | |
468 | } | |
469 | ||
470 | static enum btrace_error | |
471 | x86_linux_read_btrace (struct target_ops *self, | |
472 | VEC (btrace_block_s) **data, | |
473 | struct btrace_target_info *btinfo, | |
474 | enum btrace_read_type type) | |
475 | { | |
476 | return linux_read_btrace (data, btinfo, type); | |
477 | } | |
478 | \f | |
479 | ||
480 | /* Helper for ps_get_thread_area. Sets BASE_ADDR to a pointer to | |
481 | the thread local storage (or its descriptor) and returns PS_OK | |
482 | on success. Returns PS_ERR on failure. */ | |
483 | ||
484 | ps_err_e | |
485 | x86_linux_get_thread_area (pid_t pid, void *addr, unsigned int *base_addr) | |
486 | { | |
487 | /* NOTE: cagney/2003-08-26: The definition of this buffer is found | |
488 | in the kernel header <asm-i386/ldt.h>. It, after padding, is 4 x | |
489 | 4 byte integers in size: `entry_number', `base_addr', `limit', | |
490 | and a bunch of status bits. | |
491 | ||
492 | The values returned by this ptrace call should be part of the | |
493 | regcache buffer, and ps_get_thread_area should channel its | |
494 | request through the regcache. That way remote targets could | |
495 | provide the value using the remote protocol and not this direct | |
496 | call. | |
497 | ||
498 | Is this function needed? I'm guessing that the `base' is the | |
499 | address of a descriptor that libthread_db uses to find the | |
500 | thread local address base that GDB needs. Perhaps that | |
501 | descriptor is defined by the ABI. Anyway, given that | |
502 | libthread_db calls this function without prompting (gdb | |
503 | requesting tls base) I guess it needs info in there anyway. */ | |
504 | unsigned int desc[4]; | |
505 | ||
506 | /* This code assumes that "int" is 32 bits and that | |
507 | GET_THREAD_AREA returns no more than 4 int values. */ | |
508 | gdb_assert (sizeof (int) == 4); | |
509 | ||
510 | #ifndef PTRACE_GET_THREAD_AREA | |
511 | #define PTRACE_GET_THREAD_AREA 25 | |
512 | #endif | |
513 | ||
514 | if (ptrace (PTRACE_GET_THREAD_AREA, pid, addr, &desc) < 0) | |
515 | return PS_ERR; | |
516 | ||
517 | *base_addr = desc[1]; | |
518 | return PS_OK; | |
519 | } | |
520 | \f | |
521 | ||
522 | /* Create an x86 GNU/Linux target. */ | |
523 | ||
524 | struct target_ops * | |
525 | x86_linux_create_target (void) | |
526 | { | |
527 | /* Fill in the generic GNU/Linux methods. */ | |
528 | struct target_ops *t = linux_target (); | |
529 | ||
530 | /* Initialize the debug register function vectors. */ | |
df7e5265 GB |
531 | x86_use_watchpoints (t); |
532 | x86_dr_low.set_control = x86_linux_dr_set_control; | |
533 | x86_dr_low.set_addr = x86_linux_dr_set_addr; | |
534 | x86_dr_low.get_addr = x86_linux_dr_get_addr; | |
535 | x86_dr_low.get_status = x86_linux_dr_get_status; | |
536 | x86_dr_low.get_control = x86_linux_dr_get_control; | |
537 | x86_set_debug_register_length (sizeof (void *)); | |
040baaf6 GB |
538 | |
539 | /* Override the GNU/Linux inferior startup hook. */ | |
540 | super_post_startup_inferior = t->to_post_startup_inferior; | |
541 | t->to_post_startup_inferior = x86_linux_child_post_startup_inferior; | |
542 | ||
543 | /* Add the description reader. */ | |
544 | t->to_read_description = x86_linux_read_description; | |
545 | ||
546 | /* Add btrace methods. */ | |
547 | t->to_supports_btrace = linux_supports_btrace; | |
548 | t->to_enable_btrace = x86_linux_enable_btrace; | |
549 | t->to_disable_btrace = x86_linux_disable_btrace; | |
550 | t->to_teardown_btrace = x86_linux_teardown_btrace; | |
551 | t->to_read_btrace = x86_linux_read_btrace; | |
552 | ||
553 | return t; | |
554 | } | |
555 | ||
556 | /* Add an x86 GNU/Linux target. */ | |
557 | ||
558 | void | |
559 | x86_linux_add_target (struct target_ops *t) | |
560 | { | |
561 | linux_nat_add_target (t); | |
562 | linux_nat_set_new_thread (t, x86_linux_new_thread); | |
563 | linux_nat_set_new_fork (t, x86_linux_new_fork); | |
df7e5265 | 564 | linux_nat_set_forget_process (t, x86_forget_process); |
040baaf6 GB |
565 | linux_nat_set_prepare_to_resume (t, x86_linux_prepare_to_resume); |
566 | } |