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> | |
15 | #include <linux/mm.h> | |
16 | #include <linux/smp.h> | |
1da177e4 LT |
17 | #include <linux/errno.h> |
18 | #include <linux/ptrace.h> | |
19 | #include <linux/user.h> | |
1da177e4 | 20 | #include <linux/security.h> |
7ed20e1a | 21 | #include <linux/signal.h> |
9432f968 | 22 | #include <linux/io.h> |
1322b9de | 23 | #include <linux/audit.h> |
c4637d47 | 24 | #include <linux/seccomp.h> |
ab99c733 | 25 | #include <linux/tracehook.h> |
934135c1 PM |
26 | #include <linux/elf.h> |
27 | #include <linux/regset.h> | |
34d0b5af | 28 | #include <linux/hw_breakpoint.h> |
1da177e4 LT |
29 | #include <asm/uaccess.h> |
30 | #include <asm/pgtable.h> | |
1da177e4 LT |
31 | #include <asm/processor.h> |
32 | #include <asm/mmu_context.h> | |
fa43972f | 33 | #include <asm/syscalls.h> |
e7ab3cd2 | 34 | #include <asm/fpu.h> |
1da177e4 | 35 | |
a74f7e04 PM |
36 | #define CREATE_TRACE_POINTS |
37 | #include <trace/events/syscalls.h> | |
c652d780 | 38 | |
1da177e4 LT |
39 | /* |
40 | * This routine will get a word off of the process kernel stack. | |
41 | */ | |
42 | static inline int get_stack_long(struct task_struct *task, int offset) | |
43 | { | |
44 | unsigned char *stack; | |
45 | ||
3cf0f4ec | 46 | stack = (unsigned char *)task_pt_regs(task); |
1da177e4 LT |
47 | stack += offset; |
48 | return (*((int *)stack)); | |
49 | } | |
50 | ||
51 | /* | |
52 | * This routine will put a word on the process kernel stack. | |
53 | */ | |
54 | static inline int put_stack_long(struct task_struct *task, int offset, | |
55 | unsigned long data) | |
56 | { | |
57 | unsigned char *stack; | |
58 | ||
3cf0f4ec | 59 | stack = (unsigned char *)task_pt_regs(task); |
1da177e4 LT |
60 | stack += offset; |
61 | *(unsigned long *) stack = data; | |
62 | return 0; | |
63 | } | |
64 | ||
a8b0ca17 | 65 | void ptrace_triggered(struct perf_event *bp, |
34d0b5af | 66 | struct perf_sample_data *data, struct pt_regs *regs) |
c459dbf2 | 67 | { |
34d0b5af PM |
68 | struct perf_event_attr attr; |
69 | ||
70 | /* | |
71 | * Disable the breakpoint request here since ptrace has defined a | |
72 | * one-shot behaviour for breakpoint exceptions. | |
73 | */ | |
74 | attr = bp->attr; | |
75 | attr.disabled = true; | |
76 | modify_user_hw_breakpoint(bp, &attr); | |
77 | } | |
78 | ||
79 | static int set_single_step(struct task_struct *tsk, unsigned long addr) | |
c459dbf2 | 80 | { |
34d0b5af PM |
81 | struct thread_struct *thread = &tsk->thread; |
82 | struct perf_event *bp; | |
83 | struct perf_event_attr attr; | |
84 | ||
85 | bp = thread->ptrace_bps[0]; | |
86 | if (!bp) { | |
73266fc1 | 87 | ptrace_breakpoint_init(&attr); |
34d0b5af PM |
88 | |
89 | attr.bp_addr = addr; | |
90 | attr.bp_len = HW_BREAKPOINT_LEN_2; | |
91 | attr.bp_type = HW_BREAKPOINT_R; | |
c459dbf2 | 92 | |
4dc0da86 AK |
93 | bp = register_user_hw_breakpoint(&attr, ptrace_triggered, |
94 | NULL, tsk); | |
34d0b5af PM |
95 | if (IS_ERR(bp)) |
96 | return PTR_ERR(bp); | |
97 | ||
98 | thread->ptrace_bps[0] = bp; | |
99 | } else { | |
100 | int err; | |
101 | ||
102 | attr = bp->attr; | |
103 | attr.bp_addr = addr; | |
fb7f045a DE |
104 | /* reenable breakpoint */ |
105 | attr.disabled = false; | |
34d0b5af PM |
106 | err = modify_user_hw_breakpoint(bp, &attr); |
107 | if (unlikely(err)) | |
108 | return err; | |
109 | } | |
110 | ||
111 | return 0; | |
112 | } | |
c459dbf2 | 113 | |
c459dbf2 PM |
114 | void user_enable_single_step(struct task_struct *child) |
115 | { | |
34d0b5af | 116 | unsigned long pc = get_stack_long(child, offsetof(struct pt_regs, pc)); |
c459dbf2 PM |
117 | |
118 | set_tsk_thread_flag(child, TIF_SINGLESTEP); | |
34d0b5af PM |
119 | |
120 | set_single_step(child, pc); | |
c459dbf2 PM |
121 | } |
122 | ||
123 | void user_disable_single_step(struct task_struct *child) | |
9432f968 SM |
124 | { |
125 | clear_tsk_thread_flag(child, TIF_SINGLESTEP); | |
9432f968 SM |
126 | } |
127 | ||
1da177e4 LT |
128 | /* |
129 | * Called by kernel/ptrace.c when detaching.. | |
130 | * | |
131 | * Make sure single step bits etc are not set. | |
132 | */ | |
133 | void ptrace_disable(struct task_struct *child) | |
134 | { | |
c459dbf2 | 135 | user_disable_single_step(child); |
1da177e4 LT |
136 | } |
137 | ||
934135c1 PM |
138 | static int genregs_get(struct task_struct *target, |
139 | const struct user_regset *regset, | |
140 | unsigned int pos, unsigned int count, | |
141 | void *kbuf, void __user *ubuf) | |
142 | { | |
143 | const struct pt_regs *regs = task_pt_regs(target); | |
144 | int ret; | |
145 | ||
146 | ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, | |
147 | regs->regs, | |
148 | 0, 16 * sizeof(unsigned long)); | |
149 | if (!ret) | |
150 | /* PC, PR, SR, GBR, MACH, MACL, TRA */ | |
151 | ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, | |
152 | ®s->pc, | |
153 | offsetof(struct pt_regs, pc), | |
154 | sizeof(struct pt_regs)); | |
155 | if (!ret) | |
156 | ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, | |
157 | sizeof(struct pt_regs), -1); | |
158 | ||
159 | return ret; | |
160 | } | |
161 | ||
162 | static int genregs_set(struct task_struct *target, | |
163 | const struct user_regset *regset, | |
164 | unsigned int pos, unsigned int count, | |
165 | const void *kbuf, const void __user *ubuf) | |
166 | { | |
167 | struct pt_regs *regs = task_pt_regs(target); | |
168 | int ret; | |
169 | ||
170 | ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, | |
171 | regs->regs, | |
172 | 0, 16 * sizeof(unsigned long)); | |
173 | if (!ret && count > 0) | |
174 | ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, | |
175 | ®s->pc, | |
176 | offsetof(struct pt_regs, pc), | |
177 | sizeof(struct pt_regs)); | |
178 | if (!ret) | |
179 | ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, | |
180 | sizeof(struct pt_regs), -1); | |
181 | ||
182 | return ret; | |
183 | } | |
184 | ||
e7ab3cd2 PM |
185 | #ifdef CONFIG_SH_FPU |
186 | int fpregs_get(struct task_struct *target, | |
187 | const struct user_regset *regset, | |
188 | unsigned int pos, unsigned int count, | |
189 | void *kbuf, void __user *ubuf) | |
190 | { | |
191 | int ret; | |
192 | ||
193 | ret = init_fpu(target); | |
194 | if (ret) | |
195 | return ret; | |
196 | ||
197 | if ((boot_cpu_data.flags & CPU_HAS_FPU)) | |
198 | return user_regset_copyout(&pos, &count, &kbuf, &ubuf, | |
0ea820cf | 199 | &target->thread.xstate->hardfpu, 0, -1); |
e7ab3cd2 PM |
200 | |
201 | return user_regset_copyout(&pos, &count, &kbuf, &ubuf, | |
0ea820cf | 202 | &target->thread.xstate->softfpu, 0, -1); |
e7ab3cd2 PM |
203 | } |
204 | ||
205 | static int fpregs_set(struct task_struct *target, | |
206 | const struct user_regset *regset, | |
207 | unsigned int pos, unsigned int count, | |
208 | const void *kbuf, const void __user *ubuf) | |
209 | { | |
210 | int ret; | |
211 | ||
212 | ret = init_fpu(target); | |
213 | if (ret) | |
214 | return ret; | |
215 | ||
216 | set_stopped_child_used_math(target); | |
217 | ||
218 | if ((boot_cpu_data.flags & CPU_HAS_FPU)) | |
219 | return user_regset_copyin(&pos, &count, &kbuf, &ubuf, | |
0ea820cf | 220 | &target->thread.xstate->hardfpu, 0, -1); |
e7ab3cd2 PM |
221 | |
222 | return user_regset_copyin(&pos, &count, &kbuf, &ubuf, | |
0ea820cf | 223 | &target->thread.xstate->softfpu, 0, -1); |
e7ab3cd2 PM |
224 | } |
225 | ||
226 | static int fpregs_active(struct task_struct *target, | |
227 | const struct user_regset *regset) | |
228 | { | |
229 | return tsk_used_math(target) ? regset->n : 0; | |
230 | } | |
231 | #endif | |
232 | ||
5dadb343 PM |
233 | #ifdef CONFIG_SH_DSP |
234 | static int dspregs_get(struct task_struct *target, | |
235 | const struct user_regset *regset, | |
236 | unsigned int pos, unsigned int count, | |
237 | void *kbuf, void __user *ubuf) | |
238 | { | |
01ab1039 MT |
239 | const struct pt_dspregs *regs = |
240 | (struct pt_dspregs *)&target->thread.dsp_status.dsp_regs; | |
5dadb343 PM |
241 | int ret; |
242 | ||
243 | ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, regs, | |
244 | 0, sizeof(struct pt_dspregs)); | |
245 | if (!ret) | |
246 | ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, | |
247 | sizeof(struct pt_dspregs), -1); | |
248 | ||
249 | return ret; | |
250 | } | |
251 | ||
252 | static int dspregs_set(struct task_struct *target, | |
253 | const struct user_regset *regset, | |
254 | unsigned int pos, unsigned int count, | |
255 | const void *kbuf, const void __user *ubuf) | |
256 | { | |
01ab1039 MT |
257 | struct pt_dspregs *regs = |
258 | (struct pt_dspregs *)&target->thread.dsp_status.dsp_regs; | |
5dadb343 PM |
259 | int ret; |
260 | ||
261 | ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, regs, | |
262 | 0, sizeof(struct pt_dspregs)); | |
263 | if (!ret) | |
264 | ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, | |
265 | sizeof(struct pt_dspregs), -1); | |
266 | ||
267 | return ret; | |
268 | } | |
72461997 PM |
269 | |
270 | static int dspregs_active(struct task_struct *target, | |
271 | const struct user_regset *regset) | |
272 | { | |
273 | struct pt_regs *regs = task_pt_regs(target); | |
274 | ||
275 | return regs->sr & SR_DSP ? regset->n : 0; | |
276 | } | |
5dadb343 PM |
277 | #endif |
278 | ||
eaaaeef3 PM |
279 | const struct pt_regs_offset regoffset_table[] = { |
280 | REGS_OFFSET_NAME(0), | |
281 | REGS_OFFSET_NAME(1), | |
282 | REGS_OFFSET_NAME(2), | |
283 | REGS_OFFSET_NAME(3), | |
284 | REGS_OFFSET_NAME(4), | |
285 | REGS_OFFSET_NAME(5), | |
286 | REGS_OFFSET_NAME(6), | |
287 | REGS_OFFSET_NAME(7), | |
288 | REGS_OFFSET_NAME(8), | |
289 | REGS_OFFSET_NAME(9), | |
290 | REGS_OFFSET_NAME(10), | |
291 | REGS_OFFSET_NAME(11), | |
292 | REGS_OFFSET_NAME(12), | |
293 | REGS_OFFSET_NAME(13), | |
294 | REGS_OFFSET_NAME(14), | |
295 | REGS_OFFSET_NAME(15), | |
296 | REG_OFFSET_NAME(pc), | |
297 | REG_OFFSET_NAME(pr), | |
298 | REG_OFFSET_NAME(sr), | |
299 | REG_OFFSET_NAME(gbr), | |
300 | REG_OFFSET_NAME(mach), | |
301 | REG_OFFSET_NAME(macl), | |
302 | REG_OFFSET_NAME(tra), | |
303 | REG_OFFSET_END, | |
304 | }; | |
305 | ||
934135c1 PM |
306 | /* |
307 | * These are our native regset flavours. | |
308 | */ | |
309 | enum sh_regset { | |
310 | REGSET_GENERAL, | |
e7ab3cd2 PM |
311 | #ifdef CONFIG_SH_FPU |
312 | REGSET_FPU, | |
313 | #endif | |
5dadb343 PM |
314 | #ifdef CONFIG_SH_DSP |
315 | REGSET_DSP, | |
316 | #endif | |
934135c1 PM |
317 | }; |
318 | ||
319 | static const struct user_regset sh_regsets[] = { | |
320 | /* | |
321 | * Format is: | |
322 | * R0 --> R15 | |
323 | * PC, PR, SR, GBR, MACH, MACL, TRA | |
324 | */ | |
325 | [REGSET_GENERAL] = { | |
326 | .core_note_type = NT_PRSTATUS, | |
327 | .n = ELF_NGREG, | |
328 | .size = sizeof(long), | |
329 | .align = sizeof(long), | |
330 | .get = genregs_get, | |
331 | .set = genregs_set, | |
332 | }, | |
5dadb343 | 333 | |
e7ab3cd2 PM |
334 | #ifdef CONFIG_SH_FPU |
335 | [REGSET_FPU] = { | |
336 | .core_note_type = NT_PRFPREG, | |
337 | .n = sizeof(struct user_fpu_struct) / sizeof(long), | |
338 | .size = sizeof(long), | |
339 | .align = sizeof(long), | |
340 | .get = fpregs_get, | |
341 | .set = fpregs_set, | |
342 | .active = fpregs_active, | |
343 | }, | |
344 | #endif | |
345 | ||
5dadb343 PM |
346 | #ifdef CONFIG_SH_DSP |
347 | [REGSET_DSP] = { | |
348 | .n = sizeof(struct pt_dspregs) / sizeof(long), | |
349 | .size = sizeof(long), | |
350 | .align = sizeof(long), | |
351 | .get = dspregs_get, | |
352 | .set = dspregs_set, | |
72461997 | 353 | .active = dspregs_active, |
5dadb343 PM |
354 | }, |
355 | #endif | |
934135c1 PM |
356 | }; |
357 | ||
358 | static const struct user_regset_view user_sh_native_view = { | |
359 | .name = "sh", | |
360 | .e_machine = EM_SH, | |
361 | .regsets = sh_regsets, | |
362 | .n = ARRAY_SIZE(sh_regsets), | |
363 | }; | |
364 | ||
f9540ece PM |
365 | const struct user_regset_view *task_user_regset_view(struct task_struct *task) |
366 | { | |
367 | return &user_sh_native_view; | |
368 | } | |
369 | ||
9b05a69e NK |
370 | long arch_ptrace(struct task_struct *child, long request, |
371 | unsigned long addr, unsigned long data) | |
1da177e4 | 372 | { |
fa43972f | 373 | unsigned long __user *datap = (unsigned long __user *)data; |
1da177e4 LT |
374 | int ret; |
375 | ||
1da177e4 | 376 | switch (request) { |
1da177e4 LT |
377 | /* read the word at location addr in the USER area. */ |
378 | case PTRACE_PEEKUSR: { | |
379 | unsigned long tmp; | |
380 | ||
381 | ret = -EIO; | |
9432f968 | 382 | if ((addr & 3) || addr < 0 || |
1da177e4 LT |
383 | addr > sizeof(struct user) - 3) |
384 | break; | |
385 | ||
386 | if (addr < sizeof(struct pt_regs)) | |
387 | tmp = get_stack_long(child, addr); | |
9e1cb206 NK |
388 | else if (addr >= offsetof(struct user, fpu) && |
389 | addr < offsetof(struct user, u_fpvalid)) { | |
1da177e4 | 390 | if (!tsk_used_math(child)) { |
9e1cb206 | 391 | if (addr == offsetof(struct user, fpu.fpscr)) |
1da177e4 LT |
392 | tmp = FPSCR_INIT; |
393 | else | |
394 | tmp = 0; | |
9e1cb206 NK |
395 | } else { |
396 | unsigned long index; | |
c49b6ecf PE |
397 | ret = init_fpu(child); |
398 | if (ret) | |
399 | break; | |
9e1cb206 | 400 | index = addr - offsetof(struct user, fpu); |
9b05a69e | 401 | tmp = ((unsigned long *)child->thread.xstate) |
9e1cb206 NK |
402 | [index >> 2]; |
403 | } | |
404 | } else if (addr == offsetof(struct user, u_fpvalid)) | |
1da177e4 | 405 | tmp = !!tsk_used_math(child); |
ba0d4740 PG |
406 | else if (addr == PT_TEXT_ADDR) |
407 | tmp = child->mm->start_code; | |
408 | else if (addr == PT_DATA_ADDR) | |
409 | tmp = child->mm->start_data; | |
410 | else if (addr == PT_TEXT_END_ADDR) | |
411 | tmp = child->mm->end_code; | |
412 | else if (addr == PT_TEXT_LEN) | |
413 | tmp = child->mm->end_code - child->mm->start_code; | |
1da177e4 LT |
414 | else |
415 | tmp = 0; | |
fa43972f | 416 | ret = put_user(tmp, datap); |
1da177e4 LT |
417 | break; |
418 | } | |
419 | ||
1da177e4 LT |
420 | case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ |
421 | ret = -EIO; | |
9432f968 | 422 | if ((addr & 3) || addr < 0 || |
1da177e4 LT |
423 | addr > sizeof(struct user) - 3) |
424 | break; | |
425 | ||
426 | if (addr < sizeof(struct pt_regs)) | |
427 | ret = put_stack_long(child, addr, data); | |
9e1cb206 NK |
428 | else if (addr >= offsetof(struct user, fpu) && |
429 | addr < offsetof(struct user, u_fpvalid)) { | |
430 | unsigned long index; | |
c49b6ecf PE |
431 | ret = init_fpu(child); |
432 | if (ret) | |
433 | break; | |
9e1cb206 | 434 | index = addr - offsetof(struct user, fpu); |
1da177e4 | 435 | set_stopped_child_used_math(child); |
9b05a69e | 436 | ((unsigned long *)child->thread.xstate) |
9e1cb206 | 437 | [index >> 2] = data; |
1da177e4 | 438 | ret = 0; |
9e1cb206 | 439 | } else if (addr == offsetof(struct user, u_fpvalid)) { |
1da177e4 LT |
440 | conditional_stopped_child_used_math(data, child); |
441 | ret = 0; | |
442 | } | |
443 | break; | |
444 | ||
934135c1 PM |
445 | case PTRACE_GETREGS: |
446 | return copy_regset_to_user(child, &user_sh_native_view, | |
447 | REGSET_GENERAL, | |
448 | 0, sizeof(struct pt_regs), | |
9e1cb206 | 449 | datap); |
934135c1 PM |
450 | case PTRACE_SETREGS: |
451 | return copy_regset_from_user(child, &user_sh_native_view, | |
452 | REGSET_GENERAL, | |
453 | 0, sizeof(struct pt_regs), | |
9e1cb206 | 454 | datap); |
e7ab3cd2 PM |
455 | #ifdef CONFIG_SH_FPU |
456 | case PTRACE_GETFPREGS: | |
457 | return copy_regset_to_user(child, &user_sh_native_view, | |
458 | REGSET_FPU, | |
459 | 0, sizeof(struct user_fpu_struct), | |
9e1cb206 | 460 | datap); |
e7ab3cd2 PM |
461 | case PTRACE_SETFPREGS: |
462 | return copy_regset_from_user(child, &user_sh_native_view, | |
463 | REGSET_FPU, | |
464 | 0, sizeof(struct user_fpu_struct), | |
9e1cb206 | 465 | datap); |
e7ab3cd2 | 466 | #endif |
1da177e4 | 467 | #ifdef CONFIG_SH_DSP |
5dadb343 PM |
468 | case PTRACE_GETDSPREGS: |
469 | return copy_regset_to_user(child, &user_sh_native_view, | |
470 | REGSET_DSP, | |
471 | 0, sizeof(struct pt_dspregs), | |
9e1cb206 | 472 | datap); |
5dadb343 PM |
473 | case PTRACE_SETDSPREGS: |
474 | return copy_regset_from_user(child, &user_sh_native_view, | |
475 | REGSET_DSP, | |
476 | 0, sizeof(struct pt_dspregs), | |
9e1cb206 | 477 | datap); |
1da177e4 LT |
478 | #endif |
479 | default: | |
480 | ret = ptrace_request(child, request, addr, data); | |
481 | break; | |
482 | } | |
481bed45 | 483 | |
1da177e4 LT |
484 | return ret; |
485 | } | |
486 | ||
9e5e2117 PM |
487 | static inline int audit_arch(void) |
488 | { | |
489 | int arch = EM_SH; | |
490 | ||
491 | #ifdef CONFIG_CPU_LITTLE_ENDIAN | |
492 | arch |= __AUDIT_ARCH_LE; | |
493 | #endif | |
494 | ||
495 | return arch; | |
496 | } | |
497 | ||
ab99c733 | 498 | asmlinkage long do_syscall_trace_enter(struct pt_regs *regs) |
1da177e4 | 499 | { |
ab99c733 | 500 | long ret = 0; |
1da177e4 | 501 | |
e4da89d0 | 502 | secure_computing_strict(regs->regs[0]); |
c4637d47 | 503 | |
ab99c733 PM |
504 | if (test_thread_flag(TIF_SYSCALL_TRACE) && |
505 | tracehook_report_syscall_entry(regs)) | |
506 | /* | |
507 | * Tracing decided this syscall should not happen. | |
508 | * We'll return a bogus call number to get an ENOSYS | |
509 | * error, but leave the original number in regs->regs[0]. | |
510 | */ | |
511 | ret = -1L; | |
1322b9de | 512 | |
a74f7e04 PM |
513 | if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) |
514 | trace_sys_enter(regs, regs->regs[0]); | |
c652d780 | 515 | |
b05d8447 EP |
516 | audit_syscall_entry(audit_arch(), regs->regs[3], |
517 | regs->regs[4], regs->regs[5], | |
518 | regs->regs[6], regs->regs[7]); | |
1322b9de | 519 | |
ab99c733 PM |
520 | return ret ?: regs->regs[0]; |
521 | } | |
522 | ||
523 | asmlinkage void do_syscall_trace_leave(struct pt_regs *regs) | |
524 | { | |
525 | int step; | |
526 | ||
d7e7528b | 527 | audit_syscall_exit(regs); |
ab99c733 | 528 | |
a74f7e04 PM |
529 | if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) |
530 | trace_sys_exit(regs, regs->regs[0]); | |
c652d780 | 531 | |
ab99c733 PM |
532 | step = test_thread_flag(TIF_SINGLESTEP); |
533 | if (step || test_thread_flag(TIF_SYSCALL_TRACE)) | |
534 | tracehook_report_syscall_exit(regs, step); | |
1da177e4 | 535 | } |