Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
934135c1 | 2 | * SuperH process tracing |
1da177e4 | 3 | * |
934135c1 | 4 | * Copyright (C) 1999, 2000 Kaz Kojima & Niibe Yutaka |
34d0b5af | 5 | * Copyright (C) 2002 - 2009 Paul Mundt |
1da177e4 | 6 | * |
934135c1 PM |
7 | * Audit support by Yuichi Nakamura <ynakam@hitachisoft.jp> |
8 | * | |
9 | * This file is subject to the terms and conditions of the GNU General Public | |
10 | * License. See the file "COPYING" in the main directory of this archive | |
11 | * for more details. | |
1da177e4 | 12 | */ |
1da177e4 LT |
13 | #include <linux/kernel.h> |
14 | #include <linux/sched.h> | |
68db0cf1 | 15 | #include <linux/sched/task_stack.h> |
1da177e4 LT |
16 | #include <linux/mm.h> |
17 | #include <linux/smp.h> | |
1da177e4 LT |
18 | #include <linux/errno.h> |
19 | #include <linux/ptrace.h> | |
20 | #include <linux/user.h> | |
1da177e4 | 21 | #include <linux/security.h> |
7ed20e1a | 22 | #include <linux/signal.h> |
9432f968 | 23 | #include <linux/io.h> |
1322b9de | 24 | #include <linux/audit.h> |
c4637d47 | 25 | #include <linux/seccomp.h> |
ab99c733 | 26 | #include <linux/tracehook.h> |
934135c1 PM |
27 | #include <linux/elf.h> |
28 | #include <linux/regset.h> | |
34d0b5af | 29 | #include <linux/hw_breakpoint.h> |
7c0f6ba6 | 30 | #include <linux/uaccess.h> |
1da177e4 | 31 | #include <asm/pgtable.h> |
1da177e4 LT |
32 | #include <asm/processor.h> |
33 | #include <asm/mmu_context.h> | |
fa43972f | 34 | #include <asm/syscalls.h> |
e7ab3cd2 | 35 | #include <asm/fpu.h> |
1da177e4 | 36 | |
a74f7e04 PM |
37 | #define CREATE_TRACE_POINTS |
38 | #include <trace/events/syscalls.h> | |
c652d780 | 39 | |
1da177e4 LT |
40 | /* |
41 | * This routine will get a word off of the process kernel stack. | |
42 | */ | |
43 | static inline int get_stack_long(struct task_struct *task, int offset) | |
44 | { | |
45 | unsigned char *stack; | |
46 | ||
3cf0f4ec | 47 | stack = (unsigned char *)task_pt_regs(task); |
1da177e4 LT |
48 | stack += offset; |
49 | return (*((int *)stack)); | |
50 | } | |
51 | ||
52 | /* | |
53 | * This routine will put a word on the process kernel stack. | |
54 | */ | |
55 | static inline int put_stack_long(struct task_struct *task, int offset, | |
56 | unsigned long data) | |
57 | { | |
58 | unsigned char *stack; | |
59 | ||
3cf0f4ec | 60 | stack = (unsigned char *)task_pt_regs(task); |
1da177e4 LT |
61 | stack += offset; |
62 | *(unsigned long *) stack = data; | |
63 | return 0; | |
64 | } | |
65 | ||
a8b0ca17 | 66 | void ptrace_triggered(struct perf_event *bp, |
34d0b5af | 67 | struct perf_sample_data *data, struct pt_regs *regs) |
c459dbf2 | 68 | { |
34d0b5af PM |
69 | struct perf_event_attr attr; |
70 | ||
71 | /* | |
72 | * Disable the breakpoint request here since ptrace has defined a | |
73 | * one-shot behaviour for breakpoint exceptions. | |
74 | */ | |
75 | attr = bp->attr; | |
76 | attr.disabled = true; | |
77 | modify_user_hw_breakpoint(bp, &attr); | |
78 | } | |
79 | ||
80 | static int set_single_step(struct task_struct *tsk, unsigned long addr) | |
c459dbf2 | 81 | { |
34d0b5af PM |
82 | struct thread_struct *thread = &tsk->thread; |
83 | struct perf_event *bp; | |
84 | struct perf_event_attr attr; | |
85 | ||
86 | bp = thread->ptrace_bps[0]; | |
87 | if (!bp) { | |
73266fc1 | 88 | ptrace_breakpoint_init(&attr); |
34d0b5af PM |
89 | |
90 | attr.bp_addr = addr; | |
91 | attr.bp_len = HW_BREAKPOINT_LEN_2; | |
92 | attr.bp_type = HW_BREAKPOINT_R; | |
c459dbf2 | 93 | |
4dc0da86 AK |
94 | bp = register_user_hw_breakpoint(&attr, ptrace_triggered, |
95 | NULL, tsk); | |
34d0b5af PM |
96 | if (IS_ERR(bp)) |
97 | return PTR_ERR(bp); | |
98 | ||
99 | thread->ptrace_bps[0] = bp; | |
100 | } else { | |
101 | int err; | |
102 | ||
103 | attr = bp->attr; | |
104 | attr.bp_addr = addr; | |
fb7f045a DE |
105 | /* reenable breakpoint */ |
106 | attr.disabled = false; | |
34d0b5af PM |
107 | err = modify_user_hw_breakpoint(bp, &attr); |
108 | if (unlikely(err)) | |
109 | return err; | |
110 | } | |
111 | ||
112 | return 0; | |
113 | } | |
c459dbf2 | 114 | |
c459dbf2 PM |
115 | void user_enable_single_step(struct task_struct *child) |
116 | { | |
34d0b5af | 117 | unsigned long pc = get_stack_long(child, offsetof(struct pt_regs, pc)); |
c459dbf2 PM |
118 | |
119 | set_tsk_thread_flag(child, TIF_SINGLESTEP); | |
34d0b5af PM |
120 | |
121 | set_single_step(child, pc); | |
c459dbf2 PM |
122 | } |
123 | ||
124 | void user_disable_single_step(struct task_struct *child) | |
9432f968 SM |
125 | { |
126 | clear_tsk_thread_flag(child, TIF_SINGLESTEP); | |
9432f968 SM |
127 | } |
128 | ||
1da177e4 LT |
129 | /* |
130 | * Called by kernel/ptrace.c when detaching.. | |
131 | * | |
132 | * Make sure single step bits etc are not set. | |
133 | */ | |
134 | void ptrace_disable(struct task_struct *child) | |
135 | { | |
c459dbf2 | 136 | user_disable_single_step(child); |
1da177e4 LT |
137 | } |
138 | ||
934135c1 PM |
139 | static int genregs_get(struct task_struct *target, |
140 | const struct user_regset *regset, | |
141 | unsigned int pos, unsigned int count, | |
142 | void *kbuf, void __user *ubuf) | |
143 | { | |
144 | const struct pt_regs *regs = task_pt_regs(target); | |
145 | int ret; | |
146 | ||
147 | ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, | |
148 | regs->regs, | |
149 | 0, 16 * sizeof(unsigned long)); | |
150 | if (!ret) | |
151 | /* PC, PR, SR, GBR, MACH, MACL, TRA */ | |
152 | ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, | |
153 | ®s->pc, | |
154 | offsetof(struct pt_regs, pc), | |
155 | sizeof(struct pt_regs)); | |
156 | if (!ret) | |
157 | ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, | |
158 | sizeof(struct pt_regs), -1); | |
159 | ||
160 | return ret; | |
161 | } | |
162 | ||
163 | static int genregs_set(struct task_struct *target, | |
164 | const struct user_regset *regset, | |
165 | unsigned int pos, unsigned int count, | |
166 | const void *kbuf, const void __user *ubuf) | |
167 | { | |
168 | struct pt_regs *regs = task_pt_regs(target); | |
169 | int ret; | |
170 | ||
171 | ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, | |
172 | regs->regs, | |
173 | 0, 16 * sizeof(unsigned long)); | |
174 | if (!ret && count > 0) | |
175 | ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, | |
176 | ®s->pc, | |
177 | offsetof(struct pt_regs, pc), | |
178 | sizeof(struct pt_regs)); | |
179 | if (!ret) | |
180 | ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, | |
181 | sizeof(struct pt_regs), -1); | |
182 | ||
183 | return ret; | |
184 | } | |
185 | ||
e7ab3cd2 PM |
186 | #ifdef CONFIG_SH_FPU |
187 | int fpregs_get(struct task_struct *target, | |
188 | const struct user_regset *regset, | |
189 | unsigned int pos, unsigned int count, | |
190 | void *kbuf, void __user *ubuf) | |
191 | { | |
192 | int ret; | |
193 | ||
194 | ret = init_fpu(target); | |
195 | if (ret) | |
196 | return ret; | |
197 | ||
198 | if ((boot_cpu_data.flags & CPU_HAS_FPU)) | |
199 | return user_regset_copyout(&pos, &count, &kbuf, &ubuf, | |
0ea820cf | 200 | &target->thread.xstate->hardfpu, 0, -1); |
e7ab3cd2 PM |
201 | |
202 | return user_regset_copyout(&pos, &count, &kbuf, &ubuf, | |
0ea820cf | 203 | &target->thread.xstate->softfpu, 0, -1); |
e7ab3cd2 PM |
204 | } |
205 | ||
206 | static int fpregs_set(struct task_struct *target, | |
207 | const struct user_regset *regset, | |
208 | unsigned int pos, unsigned int count, | |
209 | const void *kbuf, const void __user *ubuf) | |
210 | { | |
211 | int ret; | |
212 | ||
213 | ret = init_fpu(target); | |
214 | if (ret) | |
215 | return ret; | |
216 | ||
217 | set_stopped_child_used_math(target); | |
218 | ||
219 | if ((boot_cpu_data.flags & CPU_HAS_FPU)) | |
220 | return user_regset_copyin(&pos, &count, &kbuf, &ubuf, | |
0ea820cf | 221 | &target->thread.xstate->hardfpu, 0, -1); |
e7ab3cd2 PM |
222 | |
223 | return user_regset_copyin(&pos, &count, &kbuf, &ubuf, | |
0ea820cf | 224 | &target->thread.xstate->softfpu, 0, -1); |
e7ab3cd2 PM |
225 | } |
226 | ||
227 | static int fpregs_active(struct task_struct *target, | |
228 | const struct user_regset *regset) | |
229 | { | |
230 | return tsk_used_math(target) ? regset->n : 0; | |
231 | } | |
232 | #endif | |
233 | ||
5dadb343 PM |
234 | #ifdef CONFIG_SH_DSP |
235 | static int dspregs_get(struct task_struct *target, | |
236 | const struct user_regset *regset, | |
237 | unsigned int pos, unsigned int count, | |
238 | void *kbuf, void __user *ubuf) | |
239 | { | |
01ab1039 MT |
240 | const struct pt_dspregs *regs = |
241 | (struct pt_dspregs *)&target->thread.dsp_status.dsp_regs; | |
5dadb343 PM |
242 | int ret; |
243 | ||
244 | ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, regs, | |
245 | 0, sizeof(struct pt_dspregs)); | |
246 | if (!ret) | |
247 | ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, | |
248 | sizeof(struct pt_dspregs), -1); | |
249 | ||
250 | return ret; | |
251 | } | |
252 | ||
253 | static int dspregs_set(struct task_struct *target, | |
254 | const struct user_regset *regset, | |
255 | unsigned int pos, unsigned int count, | |
256 | const void *kbuf, const void __user *ubuf) | |
257 | { | |
01ab1039 MT |
258 | struct pt_dspregs *regs = |
259 | (struct pt_dspregs *)&target->thread.dsp_status.dsp_regs; | |
5dadb343 PM |
260 | int ret; |
261 | ||
262 | ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, regs, | |
263 | 0, sizeof(struct pt_dspregs)); | |
264 | if (!ret) | |
265 | ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, | |
266 | sizeof(struct pt_dspregs), -1); | |
267 | ||
268 | return ret; | |
269 | } | |
72461997 PM |
270 | |
271 | static int dspregs_active(struct task_struct *target, | |
272 | const struct user_regset *regset) | |
273 | { | |
274 | struct pt_regs *regs = task_pt_regs(target); | |
275 | ||
276 | return regs->sr & SR_DSP ? regset->n : 0; | |
277 | } | |
5dadb343 PM |
278 | #endif |
279 | ||
eaaaeef3 PM |
280 | const struct pt_regs_offset regoffset_table[] = { |
281 | REGS_OFFSET_NAME(0), | |
282 | REGS_OFFSET_NAME(1), | |
283 | REGS_OFFSET_NAME(2), | |
284 | REGS_OFFSET_NAME(3), | |
285 | REGS_OFFSET_NAME(4), | |
286 | REGS_OFFSET_NAME(5), | |
287 | REGS_OFFSET_NAME(6), | |
288 | REGS_OFFSET_NAME(7), | |
289 | REGS_OFFSET_NAME(8), | |
290 | REGS_OFFSET_NAME(9), | |
291 | REGS_OFFSET_NAME(10), | |
292 | REGS_OFFSET_NAME(11), | |
293 | REGS_OFFSET_NAME(12), | |
294 | REGS_OFFSET_NAME(13), | |
295 | REGS_OFFSET_NAME(14), | |
296 | REGS_OFFSET_NAME(15), | |
297 | REG_OFFSET_NAME(pc), | |
298 | REG_OFFSET_NAME(pr), | |
299 | REG_OFFSET_NAME(sr), | |
300 | REG_OFFSET_NAME(gbr), | |
301 | REG_OFFSET_NAME(mach), | |
302 | REG_OFFSET_NAME(macl), | |
303 | REG_OFFSET_NAME(tra), | |
304 | REG_OFFSET_END, | |
305 | }; | |
306 | ||
934135c1 PM |
307 | /* |
308 | * These are our native regset flavours. | |
309 | */ | |
310 | enum sh_regset { | |
311 | REGSET_GENERAL, | |
e7ab3cd2 PM |
312 | #ifdef CONFIG_SH_FPU |
313 | REGSET_FPU, | |
314 | #endif | |
5dadb343 PM |
315 | #ifdef CONFIG_SH_DSP |
316 | REGSET_DSP, | |
317 | #endif | |
934135c1 PM |
318 | }; |
319 | ||
320 | static const struct user_regset sh_regsets[] = { | |
321 | /* | |
322 | * Format is: | |
323 | * R0 --> R15 | |
324 | * PC, PR, SR, GBR, MACH, MACL, TRA | |
325 | */ | |
326 | [REGSET_GENERAL] = { | |
327 | .core_note_type = NT_PRSTATUS, | |
328 | .n = ELF_NGREG, | |
329 | .size = sizeof(long), | |
330 | .align = sizeof(long), | |
331 | .get = genregs_get, | |
332 | .set = genregs_set, | |
333 | }, | |
5dadb343 | 334 | |
e7ab3cd2 PM |
335 | #ifdef CONFIG_SH_FPU |
336 | [REGSET_FPU] = { | |
337 | .core_note_type = NT_PRFPREG, | |
338 | .n = sizeof(struct user_fpu_struct) / sizeof(long), | |
339 | .size = sizeof(long), | |
340 | .align = sizeof(long), | |
341 | .get = fpregs_get, | |
342 | .set = fpregs_set, | |
343 | .active = fpregs_active, | |
344 | }, | |
345 | #endif | |
346 | ||
5dadb343 PM |
347 | #ifdef CONFIG_SH_DSP |
348 | [REGSET_DSP] = { | |
349 | .n = sizeof(struct pt_dspregs) / sizeof(long), | |
350 | .size = sizeof(long), | |
351 | .align = sizeof(long), | |
352 | .get = dspregs_get, | |
353 | .set = dspregs_set, | |
72461997 | 354 | .active = dspregs_active, |
5dadb343 PM |
355 | }, |
356 | #endif | |
934135c1 PM |
357 | }; |
358 | ||
359 | static const struct user_regset_view user_sh_native_view = { | |
360 | .name = "sh", | |
361 | .e_machine = EM_SH, | |
362 | .regsets = sh_regsets, | |
363 | .n = ARRAY_SIZE(sh_regsets), | |
364 | }; | |
365 | ||
f9540ece PM |
366 | const struct user_regset_view *task_user_regset_view(struct task_struct *task) |
367 | { | |
368 | return &user_sh_native_view; | |
369 | } | |
370 | ||
9b05a69e NK |
371 | long arch_ptrace(struct task_struct *child, long request, |
372 | unsigned long addr, unsigned long data) | |
1da177e4 | 373 | { |
fa43972f | 374 | unsigned long __user *datap = (unsigned long __user *)data; |
1da177e4 LT |
375 | int ret; |
376 | ||
1da177e4 | 377 | switch (request) { |
1da177e4 LT |
378 | /* read the word at location addr in the USER area. */ |
379 | case PTRACE_PEEKUSR: { | |
380 | unsigned long tmp; | |
381 | ||
382 | ret = -EIO; | |
9432f968 | 383 | if ((addr & 3) || addr < 0 || |
1da177e4 LT |
384 | addr > sizeof(struct user) - 3) |
385 | break; | |
386 | ||
387 | if (addr < sizeof(struct pt_regs)) | |
388 | tmp = get_stack_long(child, addr); | |
9e1cb206 NK |
389 | else if (addr >= offsetof(struct user, fpu) && |
390 | addr < offsetof(struct user, u_fpvalid)) { | |
1da177e4 | 391 | if (!tsk_used_math(child)) { |
9e1cb206 | 392 | if (addr == offsetof(struct user, fpu.fpscr)) |
1da177e4 LT |
393 | tmp = FPSCR_INIT; |
394 | else | |
395 | tmp = 0; | |
9e1cb206 NK |
396 | } else { |
397 | unsigned long index; | |
c49b6ecf PE |
398 | ret = init_fpu(child); |
399 | if (ret) | |
400 | break; | |
9e1cb206 | 401 | index = addr - offsetof(struct user, fpu); |
9b05a69e | 402 | tmp = ((unsigned long *)child->thread.xstate) |
9e1cb206 NK |
403 | [index >> 2]; |
404 | } | |
405 | } else if (addr == offsetof(struct user, u_fpvalid)) | |
1da177e4 | 406 | tmp = !!tsk_used_math(child); |
ba0d4740 PG |
407 | else if (addr == PT_TEXT_ADDR) |
408 | tmp = child->mm->start_code; | |
409 | else if (addr == PT_DATA_ADDR) | |
410 | tmp = child->mm->start_data; | |
411 | else if (addr == PT_TEXT_END_ADDR) | |
412 | tmp = child->mm->end_code; | |
413 | else if (addr == PT_TEXT_LEN) | |
414 | tmp = child->mm->end_code - child->mm->start_code; | |
1da177e4 LT |
415 | else |
416 | tmp = 0; | |
fa43972f | 417 | ret = put_user(tmp, datap); |
1da177e4 LT |
418 | break; |
419 | } | |
420 | ||
1da177e4 LT |
421 | case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ |
422 | ret = -EIO; | |
9432f968 | 423 | if ((addr & 3) || addr < 0 || |
1da177e4 LT |
424 | addr > sizeof(struct user) - 3) |
425 | break; | |
426 | ||
427 | if (addr < sizeof(struct pt_regs)) | |
428 | ret = put_stack_long(child, addr, data); | |
9e1cb206 NK |
429 | else if (addr >= offsetof(struct user, fpu) && |
430 | addr < offsetof(struct user, u_fpvalid)) { | |
431 | unsigned long index; | |
c49b6ecf PE |
432 | ret = init_fpu(child); |
433 | if (ret) | |
434 | break; | |
9e1cb206 | 435 | index = addr - offsetof(struct user, fpu); |
1da177e4 | 436 | set_stopped_child_used_math(child); |
9b05a69e | 437 | ((unsigned long *)child->thread.xstate) |
9e1cb206 | 438 | [index >> 2] = data; |
1da177e4 | 439 | ret = 0; |
9e1cb206 | 440 | } else if (addr == offsetof(struct user, u_fpvalid)) { |
1da177e4 LT |
441 | conditional_stopped_child_used_math(data, child); |
442 | ret = 0; | |
443 | } | |
444 | break; | |
445 | ||
934135c1 PM |
446 | case PTRACE_GETREGS: |
447 | return copy_regset_to_user(child, &user_sh_native_view, | |
448 | REGSET_GENERAL, | |
449 | 0, sizeof(struct pt_regs), | |
9e1cb206 | 450 | datap); |
934135c1 PM |
451 | case PTRACE_SETREGS: |
452 | return copy_regset_from_user(child, &user_sh_native_view, | |
453 | REGSET_GENERAL, | |
454 | 0, sizeof(struct pt_regs), | |
9e1cb206 | 455 | datap); |
e7ab3cd2 PM |
456 | #ifdef CONFIG_SH_FPU |
457 | case PTRACE_GETFPREGS: | |
458 | return copy_regset_to_user(child, &user_sh_native_view, | |
459 | REGSET_FPU, | |
460 | 0, sizeof(struct user_fpu_struct), | |
9e1cb206 | 461 | datap); |
e7ab3cd2 PM |
462 | case PTRACE_SETFPREGS: |
463 | return copy_regset_from_user(child, &user_sh_native_view, | |
464 | REGSET_FPU, | |
465 | 0, sizeof(struct user_fpu_struct), | |
9e1cb206 | 466 | datap); |
e7ab3cd2 | 467 | #endif |
1da177e4 | 468 | #ifdef CONFIG_SH_DSP |
5dadb343 PM |
469 | case PTRACE_GETDSPREGS: |
470 | return copy_regset_to_user(child, &user_sh_native_view, | |
471 | REGSET_DSP, | |
472 | 0, sizeof(struct pt_dspregs), | |
9e1cb206 | 473 | datap); |
5dadb343 PM |
474 | case PTRACE_SETDSPREGS: |
475 | return copy_regset_from_user(child, &user_sh_native_view, | |
476 | REGSET_DSP, | |
477 | 0, sizeof(struct pt_dspregs), | |
9e1cb206 | 478 | datap); |
1da177e4 LT |
479 | #endif |
480 | default: | |
481 | ret = ptrace_request(child, request, addr, data); | |
482 | break; | |
483 | } | |
481bed45 | 484 | |
1da177e4 LT |
485 | return ret; |
486 | } | |
487 | ||
ab99c733 | 488 | asmlinkage long do_syscall_trace_enter(struct pt_regs *regs) |
1da177e4 | 489 | { |
ab99c733 | 490 | long ret = 0; |
1da177e4 | 491 | |
e4da89d0 | 492 | secure_computing_strict(regs->regs[0]); |
c4637d47 | 493 | |
ab99c733 PM |
494 | if (test_thread_flag(TIF_SYSCALL_TRACE) && |
495 | tracehook_report_syscall_entry(regs)) | |
496 | /* | |
497 | * Tracing decided this syscall should not happen. | |
498 | * We'll return a bogus call number to get an ENOSYS | |
499 | * error, but leave the original number in regs->regs[0]. | |
500 | */ | |
501 | ret = -1L; | |
1322b9de | 502 | |
a74f7e04 PM |
503 | if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) |
504 | trace_sys_enter(regs, regs->regs[0]); | |
c652d780 | 505 | |
91397401 | 506 | audit_syscall_entry(regs->regs[3], regs->regs[4], regs->regs[5], |
b05d8447 | 507 | regs->regs[6], regs->regs[7]); |
1322b9de | 508 | |
ab99c733 PM |
509 | return ret ?: regs->regs[0]; |
510 | } | |
511 | ||
512 | asmlinkage void do_syscall_trace_leave(struct pt_regs *regs) | |
513 | { | |
514 | int step; | |
515 | ||
d7e7528b | 516 | audit_syscall_exit(regs); |
ab99c733 | 517 | |
a74f7e04 PM |
518 | if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) |
519 | trace_sys_exit(regs, regs->regs[0]); | |
c652d780 | 520 | |
ab99c733 PM |
521 | step = test_thread_flag(TIF_SINGLESTEP); |
522 | if (step || test_thread_flag(TIF_SYSCALL_TRACE)) | |
523 | tracehook_report_syscall_exit(regs, step); | |
1da177e4 | 524 | } |