projects / lttng-modules.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
sequence and variant types: use previous field for length/tag if NULL
[lttng-modules.git] / include / instrumentation / syscalls / headers / syscalls_pointers_override.h
1 /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */
2
3 #ifndef CREATE_SYSCALL_TABLE
4
5 #define OVERRIDE_32_execve
6 #define OVERRIDE_64_execve
7 SC_LTTNG_TRACEPOINT_EVENT(execve,
8 TP_PROTO(sc_exit(long ret,) const char *filename, char *const *argv, char *const *envp),
9 TP_ARGS(sc_exit(ret,) filename, argv, envp),
10 TP_FIELDS(sc_exit(ctf_integer(long, ret, ret))
11 sc_in(ctf_user_string(filename, filename))
12 sc_in(ctf_integer_hex(char *const *, argv, argv))
13 sc_in(ctf_integer_hex(char *const *, envp, envp))
14 )
15 )
16
17 /*
18 * Clone()'s `flags` field has two parts:
19 * 1. exit signal: the least significant byte of the `unsigned long` is
20 * the signal the kernel must send to the parent process on child
21 * exit,
22 * 2. clone options: the remaining bytes of the `unsigned long` is used a
23 * bitwise flag for the clone options.
24 */
25 #define CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS 8
26 #define LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(x) ((x) >> CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS)
27
28 SC_LTTNG_TRACEPOINT_ENUM(lttng_clone_exit_signal_flags,
29 TP_ENUM_VALUES(
30 ctf_enum_value("SIGHUP", SIGHUP)
31 ctf_enum_value("SIGINT", SIGINT)
32 ctf_enum_value("SIGQUIT", SIGQUIT)
33 ctf_enum_value("SIGILL", SIGILL)
34 ctf_enum_value("SIGTRAP", SIGTRAP)
35 ctf_enum_value("SIGABRT", SIGABRT)
36 ctf_enum_value("SIGIOT", SIGIOT)
37 ctf_enum_value("SIGBUS", SIGBUS)
38 #ifdef SIGEMT
39 ctf_enum_value("SIGEMT", SIGEMT)
40 #endif /* #ifdef SIGEMT */
41 ctf_enum_value("SIGFPE", SIGFPE)
42 ctf_enum_value("SIGKILL", SIGKILL)
43 ctf_enum_value("SIGUSR1", SIGUSR1)
44 ctf_enum_value("SIGSEGV", SIGSEGV)
45 ctf_enum_value("SIGUSR2", SIGUSR2)
46 ctf_enum_value("SIGPIPE", SIGPIPE)
47 ctf_enum_value("SIGALRM", SIGALRM)
48 ctf_enum_value("SIGTERM", SIGTERM)
49 #ifdef SIGSTKFLT
50 ctf_enum_value("SIGSTKFLT", SIGSTKFLT)
51 #endif /* #ifdef SIGSTKFLT */
52 ctf_enum_value("SIGCHLD", SIGCHLD)
53 #ifdef SIGCLD
54 ctf_enum_value("SIGCLD", SIGCLD)
55 #endif /* #ifdef SIGCLD */
56 ctf_enum_value("SIGCONT", SIGCONT)
57 ctf_enum_value("SIGSTOP", SIGSTOP)
58 ctf_enum_value("SIGTSTP", SIGTSTP)
59 ctf_enum_value("SIGTTIN", SIGTTIN)
60 ctf_enum_value("SIGTTOU", SIGTTOU)
61 ctf_enum_value("SIGURG", SIGURG)
62 ctf_enum_value("SIGXCPU", SIGXCPU)
63 ctf_enum_value("SIGXFSZ", SIGXFSZ)
64 ctf_enum_value("SIGVTALR", SIGVTALRM)
65 ctf_enum_value("SIGPROF", SIGPROF)
66 ctf_enum_value("SIGWINCH", SIGWINCH)
67 ctf_enum_value("SIGIO", SIGIO)
68 ctf_enum_value("SIGPOLL", SIGPOLL)
69 ctf_enum_value("SIGPWR", SIGPWR)
70 #ifdef SIGINFO
71 ctf_enum_value("SIGINFO", SIGINFO)
72 #endif /* #ifdef SIGINFO */
73 #ifdef SIGLOST
74 ctf_enum_value("SIGLOST", SIGLOST)
75 #endif /* #ifdef SIGLOST */
76 ctf_enum_value("SIGSYS", SIGSYS)
77 #ifdef SIGUNUSED
78 ctf_enum_value("SIGUNUSED", SIGUNUSED)
79 #endif /* #ifdef SIGUNUSED */
80 )
81 )
82
83 SC_LTTNG_TRACEPOINT_ENUM(lttng_clone_option_flags,
84 TP_ENUM_VALUES(
85 ctf_enum_value("CLONE_CHILD_CLEARTID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CHILD_CLEARTID))
86 ctf_enum_value("CLONE_CHILD_SETTID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CHILD_SETTID))
87 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,5,0))
88 ctf_enum_value("CLONE_CLEAR_SIGHAND", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CLEAR_SIGHAND))
89 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,5,0)) */
90 ctf_enum_value("CLONE_DETACHED", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_DETACHED))
91 ctf_enum_value("CLONE_FILES", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_FILES))
92 ctf_enum_value("CLONE_FS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_FS))
93 ctf_enum_value("CLONE_IO", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_IO))
94 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0))
95 ctf_enum_value("CLONE_NEWCGROUP", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWCGROUP))
96 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) */
97 ctf_enum_value("CLONE_NEWIPC", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWIPC))
98 ctf_enum_value("CLONE_NEWNET", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWNET))
99 ctf_enum_value("CLONE_NEWNS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWNS))
100 ctf_enum_value("CLONE_NEWPID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWPID))
101 ctf_enum_value("CLONE_NEWUSER", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWUSER))
102 ctf_enum_value("CLONE_NEWUTS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWUTS))
103 ctf_enum_value("CLONE_PARENT", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PARENT))
104 ctf_enum_value("CLONE_PARENT_SETTID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PARENT_SETTID))
105 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,2,0))
106 ctf_enum_value("CLONE_PIDFD", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PIDFD))
107 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,2,0)) */
108 ctf_enum_value("CLONE_PTRACE", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PTRACE))
109 ctf_enum_value("CLONE_SETTLS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_SETTLS))
110 ctf_enum_value("CLONE_SIGHAND", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_SIGHAND))
111 ctf_enum_value("CLONE_SYSVSEM", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_SYSVSEM))
112 ctf_enum_value("CLONE_THREAD", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_THREAD))
113 ctf_enum_value("CLONE_UNTRACED", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_UNTRACED))
114 ctf_enum_value("CLONE_VFORK", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_VFORK))
115 ctf_enum_value("CLONE_VM", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_VM))
116 )
117 )
118
119 #define LTTNG_CLONE_FLAGS_EXIT_SIGNAL \
120 lttng_kernel_static_event_field("exit_signal", \
121 lttng_kernel_static_type_enum(&__enum_lttng_clone_exit_signal_flags, \
122 lttng_kernel_static_type_integer(CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS, \
123 1, 0, __BYTE_ORDER, 16)), \
124 false, false, false)
125
126 #define LTTNG_CLONE_FLAGS_OPTIONS \
127 lttng_kernel_static_event_field("options", \
128 lttng_kernel_static_type_enum(&__enum_lttng_clone_option_flags, \
129 lttng_kernel_static_type_integer( \
130 sizeof(unsigned long) * CHAR_BIT - CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS, \
131 1, 0, __BYTE_ORDER, 16)), \
132 false, false, false)
133
134 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
135 #define LTTNG_CLONE_FLAGS \
136 lttng_kernel_static_event_field_array( \
137 [0] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, \
138 [1] = LTTNG_CLONE_FLAGS_OPTIONS, \
139 )
140 #else
141 #define LTTNG_CLONE_FLAGS \
142 lttng_kernel_static_event_field_array( \
143 [0] = LTTNG_CLONE_FLAGS_OPTIONS, \
144 [1] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, \
145 )
146 #endif
147
148
149 #define OVERRIDE_32_clone
150 #define OVERRIDE_64_clone
151 SC_LTTNG_TRACEPOINT_EVENT(clone,
152 TP_PROTO(sc_exit(long ret,) unsigned long clone_flags, unsigned long newsp,
153 void __user *parent_tid,
154 void __user *child_tid),
155 TP_ARGS(sc_exit(ret,) clone_flags, newsp, parent_tid, child_tid),
156 TP_FIELDS(
157 sc_exit(ctf_integer(long, ret, ret))
158 sc_in(
159 ctf_custom_field(
160 ctf_custom_type(
161 lttng_kernel_static_type_struct(2, LTTNG_CLONE_FLAGS, lttng_alignof(unsigned long) * CHAR_BIT)
162 ),
163 flags,
164 ctf_custom_code(
165 ctf_integer_type(unsigned long, clone_flags)
166 )
167 )
168 )
169 sc_in(ctf_integer_hex(unsigned long, newsp, newsp))
170 sc_in(ctf_integer_hex(void *, parent_tid, parent_tid))
171 sc_in(ctf_integer_hex(void *, child_tid, child_tid))
172 )
173 )
174
175 /* present in 32, missing in 64 due to old kernel headers */
176 #define OVERRIDE_32_getcpu
177 #define OVERRIDE_64_getcpu
178 SC_LTTNG_TRACEPOINT_EVENT(getcpu,
179 TP_PROTO(sc_exit(long ret,) unsigned __user *cpup, unsigned __user *nodep, void *tcache),
180 TP_ARGS(sc_exit(ret,) cpup, nodep, tcache),
181 TP_FIELDS(
182 sc_exit(ctf_integer(long, ret, ret))
183 sc_out(ctf_integer_hex(unsigned *, cpup, cpup))
184 sc_out(ctf_integer_hex(unsigned *, nodep, nodep))
185 sc_inout(ctf_integer_hex(void *, tcache, tcache))
186 )
187 )
188
189 #define OVERRIDE_32_pipe2
190 #define OVERRIDE_64_pipe2
191 SC_LTTNG_TRACEPOINT_EVENT(pipe2,
192 TP_PROTO(sc_exit(long ret,) int * fildes, int flags),
193 TP_ARGS(sc_exit(ret,) fildes, flags),
194 TP_FIELDS(sc_exit(ctf_integer(long, ret, ret))
195 sc_out(ctf_user_array(int, fildes, fildes, 2))
196 sc_in(ctf_integer(int, flags, flags))
197 )
198 )
199
200 #define LTTNG_SYSCALL_SELECT_locvar \
201 unsigned long *fds_in, *fds_out, *fds_ex; \
202 unsigned long nr_bytes, nr_ulong; \
203 uint8_t overflow;
204
205 #define LTTNG_SYSCALL_SELECT_code_pre \
206 sc_inout( \
207 { \
208 int err; \
209 unsigned int n_in_bytes; \
210 \
211 tp_locvar->fds_in = NULL; \
212 tp_locvar->fds_out = NULL; \
213 tp_locvar->fds_ex = NULL; \
214 tp_locvar->overflow = 0; \
215 \
216 sc_out( \
217 if (ret <= 0) \
218 goto error; \
219 ) \
220 \
221 if (n <= 0) \
222 goto error; \
223 \
224 /* On error or bogus input, don't copy anything. */ \
225 if (n >__FD_SETSIZE) \
226 goto error; \
227 \
228 n_in_bytes = DIV_ROUND_UP((unsigned int) n, BITS_PER_BYTE); \
229 \
230 /* \
231 * Limit atomic memory allocation to one page, since n \
232 * is limited to 1024 and the smallest page size on Linux \
233 * is 4k, this should not happen, don't try to make it work. \
234 */ \
235 if (n_in_bytes > PAGE_SIZE) { \
236 WARN_ON_ONCE(1); \
237 /* Inform the user that we did not output everything. */ \
238 tp_locvar->overflow = 1; \
239 goto error; \
240 } else { \
241 tp_locvar->nr_bytes = n_in_bytes; \
242 tp_locvar->nr_ulong = DIV_ROUND_UP(n_in_bytes, \
243 sizeof(unsigned long)); \
244 } \
245 \
246 if (inp) { \
247 tp_locvar->fds_in = lttng_tp_mempool_alloc( \
248 tp_locvar->nr_ulong * sizeof(unsigned long)); \
249 if (!tp_locvar->fds_in) \
250 goto error; \
251 \
252 err = lib_ring_buffer_copy_from_user_check_nofault( \
253 tp_locvar->fds_in, inp, \
254 tp_locvar->nr_ulong * sizeof(unsigned long)); \
255 if (err != 0) \
256 goto error; \
257 } \
258 if (outp) { \
259 tp_locvar->fds_out = lttng_tp_mempool_alloc( \
260 tp_locvar->nr_ulong * sizeof(unsigned long)); \
261 if (!tp_locvar->fds_out) \
262 goto error; \
263 \
264 err = lib_ring_buffer_copy_from_user_check_nofault( \
265 tp_locvar->fds_out, outp, \
266 tp_locvar->nr_ulong * sizeof(unsigned long)); \
267 if (err != 0) \
268 goto error; \
269 } \
270 if (exp) { \
271 tp_locvar->fds_ex = lttng_tp_mempool_alloc( \
272 tp_locvar->nr_ulong * sizeof(unsigned long)); \
273 if (!tp_locvar->fds_ex) \
274 goto error; \
275 \
276 err = lib_ring_buffer_copy_from_user_check_nofault( \
277 tp_locvar->fds_ex, exp, \
278 tp_locvar->nr_ulong * sizeof(unsigned long)); \
279 if (err != 0) \
280 goto error; \
281 } \
282 goto end; \
283 \
284 error: \
285 tp_locvar->nr_bytes = 0; \
286 tp_locvar->nr_ulong = 0; \
287 end: ; /* Label at end of compound statement. */ \
288 } \
289 )
290
291 #define LTTNG_SYSCALL_SELECT_fds_field_LE(name, input) \
292 ctf_custom_field( \
293 ctf_custom_type( \
294 lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 10) \
295 ), \
296 _ ## name ## _length, \
297 ctf_custom_code( \
298 if (input) { \
299 ctf_integer_type(uint8_t, tp_locvar->nr_bytes) \
300 ctf_align(uint8_t) \
301 } else { \
302 ctf_integer_type(uint8_t, 0) \
303 ctf_align(uint8_t) \
304 } \
305 ) \
306 ) \
307 ctf_custom_field( \
308 ctf_custom_type( \
309 lttng_kernel_static_type_sequence(NULL, \
310 lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 16), \
311 0, \
312 none) \
313 ), \
314 name, \
315 ctf_custom_code( \
316 unsigned int src; \
317 unsigned int nr_bytes_out = 0; \
318 \
319 if (!input) \
320 goto skip_##name; \
321 \
322 for (src = 0; src < tp_locvar->nr_ulong; src++) { \
323 int dst; \
324 for (dst = 0; dst < sizeof(long); dst++) { \
325 if (nr_bytes_out++ >= tp_locvar->nr_bytes) { \
326 goto skip_##name; \
327 } \
328 ctf_user_integer_type(uint8_t, \
329 ((uint8_t __user *) (input->fds_bits + src))[dst]); \
330 } \
331 } \
332 skip_##name: ; \
333 ) \
334 )
335
336 #define LTTNG_SYSCALL_SELECT_fds_field_BE(name, input) \
337 ctf_custom_field( \
338 ctf_custom_type( \
339 lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 10) \
340 ), \
341 _ ## name ## _length, \
342 ctf_custom_code( \
343 if (input) { \
344 ctf_integer_type(uint8_t, tp_locvar->nr_bytes) \
345 ctf_align(uint8_t) \
346 } else { \
347 ctf_integer_type(uint8_t, 0) \
348 ctf_align(uint8_t) \
349 } \
350 ) \
351 ) \
352 ctf_custom_field( \
353 ctf_custom_type( \
354 lttng_kernel_static_type_sequence(NULL, \
355 lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 16), \
356 0, \
357 none) \
358 ), \
359 name, \
360 ctf_custom_code( \
361 unsigned int src, nr_bytes_out = 0; \
362 \
363 if (!input) \
364 goto skip_##name; \
365 \
366 for (src = 0; src < tp_locvar->nr_ulong; src++) { \
367 int dst; \
368 for (dst = sizeof(long); dst >= 0; dst--) { \
369 if (nr_bytes_out++ >= tp_locvar->nr_bytes) { \
370 goto skip_##name; \
371 } \
372 ctf_user_integer_type(uint8_t, \
373 ((uint8_t __user *) (input->fds_bits + src))[dst]); \
374 } \
375 } \
376 skip_##name: ; \
377 ) \
378 )
379
380 #define LTTNG_SYSCALL_SELECT_code_post \
381 lttng_tp_mempool_free(tp_locvar->fds_in); \
382 lttng_tp_mempool_free(tp_locvar->fds_out); \
383 lttng_tp_mempool_free(tp_locvar->fds_ex);
384
385 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM)
386 #define OVERRIDE_32_select
387 #define OVERRIDE_64_select
388 SC_LTTNG_TRACEPOINT_EVENT_CODE(select,
389 TP_PROTO(sc_exit(long ret,) int n, fd_set __user *inp, fd_set __user *outp,
390 fd_set __user *exp, struct timeval *tvp),
391 TP_ARGS(sc_exit(ret,) n, inp, outp, exp, tvp),
392 TP_locvar(
393 LTTNG_SYSCALL_SELECT_locvar
394 ),
395 TP_code_pre(
396 LTTNG_SYSCALL_SELECT_code_pre
397 ),
398 TP_FIELDS(
399 sc_exit(ctf_integer(long, ret, ret))
400 sc_in(ctf_integer(int, n, n))
401 sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow))
402 sc_inout(ctf_integer(struct timeval *, tvp, tvp))
403
404 sc_inout(
405 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
406 LTTNG_SYSCALL_SELECT_fds_field_LE(readfds, inp)
407 LTTNG_SYSCALL_SELECT_fds_field_LE(writefds, outp)
408 LTTNG_SYSCALL_SELECT_fds_field_LE(exceptfds, exp)
409 #else
410 LTTNG_SYSCALL_SELECT_fds_field_BE(readfds, inp)
411 LTTNG_SYSCALL_SELECT_fds_field_BE(writefds, outp)
412 LTTNG_SYSCALL_SELECT_fds_field_BE(exceptfds, exp)
413 #endif
414 )
415 ),
416 TP_code_post(
417 LTTNG_SYSCALL_SELECT_code_post
418 )
419 )
420 #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */
421
422 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM)
423 #define OVERRIDE_32_pselect6
424 #define OVERRIDE_64_pselect6
425 SC_LTTNG_TRACEPOINT_EVENT_CODE(pselect6,
426 TP_PROTO(sc_exit(long ret,) int n, fd_set __user * inp, fd_set __user * outp,
427 fd_set __user * exp, struct timeval __user * tvp, void __user * sig),
428 TP_ARGS(sc_exit(ret,) n, inp, outp, exp, tvp, sig),
429 TP_locvar(
430 LTTNG_SYSCALL_SELECT_locvar
431 ),
432 TP_code_pre(
433 LTTNG_SYSCALL_SELECT_code_pre
434 ),
435 TP_FIELDS(
436 sc_exit(ctf_integer(long, ret, ret))
437 sc_in(ctf_integer(int, n, n))
438 sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow))
439 sc_inout(ctf_integer(struct timeval *, tvp, tvp))
440 sc_in(ctf_integer_hex(void *, sig, sig))
441
442 sc_inout(
443 #if (__BYTE_ORDER == __LITTLE_ENDIAN)
444 LTTNG_SYSCALL_SELECT_fds_field_LE(readfds, inp)
445 LTTNG_SYSCALL_SELECT_fds_field_LE(writefds, outp)
446 LTTNG_SYSCALL_SELECT_fds_field_LE(exceptfds, exp)
447 #else
448 LTTNG_SYSCALL_SELECT_fds_field_BE(readfds, inp)
449 LTTNG_SYSCALL_SELECT_fds_field_BE(writefds, outp)
450 LTTNG_SYSCALL_SELECT_fds_field_BE(exceptfds, exp)
451 #endif
452 )
453 ),
454 TP_code_post(
455 LTTNG_SYSCALL_SELECT_code_post
456 )
457 )
458 #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */
459
460 #ifndef ONCE_LTTNG_TRACE_POLL_H
461 #define ONCE_LTTNG_TRACE_POLL_H
462
463 #define LTTNG_POLL_NRFLAGS (POLLNVAL + 1)
464 #define POLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \
465 ilog2(LTTNG_POLL_NRFLAGS - 1)
466
467 /*
468 * Only extract the values specified by iBCS2 for now.
469 */
470 static const struct lttng_kernel_event_field *lttng_pollfd_flag_fields[] = {
471 [ilog2(POLLIN)] = lttng_kernel_static_event_field("POLLIN",
472 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
473 false, false, false),
474 [ilog2(POLLPRI)] = lttng_kernel_static_event_field("POLLPRI",
475 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
476 false, false, false),
477 [ilog2(POLLOUT)] = lttng_kernel_static_event_field("POLLOUT",
478 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
479 false, false, false),
480 [ilog2(POLLERR)] = lttng_kernel_static_event_field("POLLERR",
481 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
482 false, false, false),
483 [ilog2(POLLHUP)] = lttng_kernel_static_event_field("POLLHUP",
484 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
485 false, false, false),
486 [ilog2(POLLNVAL)] = lttng_kernel_static_event_field("POLLNVAL",
487 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
488 false, false, false),
489 [ilog2(LTTNG_POLL_NRFLAGS)] = lttng_kernel_static_event_field("padding",
490 lttng_kernel_static_type_integer(POLL_FLAGS_PADDING_SIZE, 1, 0, __LITTLE_ENDIAN, 10),
491 false, false, false),
492 };
493
494 static const struct lttng_kernel_event_field *lttng_pollfd_fields[] = {
495 [0] = lttng_kernel_static_event_field("fd", lttng_kernel_static_type_integer_from_type(int, __BYTE_ORDER, 10),
496 false, false, false),
497 [1] = lttng_kernel_static_event_field("raw_events", lttng_kernel_static_type_integer_from_type(uint16_t, __BYTE_ORDER, 16),
498 false, false, false),
499 [2] = lttng_kernel_static_event_field("events",
500 lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_pollfd_flag_fields),
501 lttng_pollfd_flag_fields, 0),
502 false, false, false),
503 };
504
505 #endif /* ONCE_LTTNG_TRACE_POLL_H */
506
507 #define LTTNG_SYSCALL_POLL_locvar \
508 unsigned int fds_length, fds_max_len, alloc_fds; \
509 struct pollfd *fds; \
510 uint8_t overflow;
511
512 #define LTTNG_SYSCALL_POLL_code_pre \
513 BUILD_BUG_ON(((ARRAY_SIZE(lttng_pollfd_flag_fields) - 1) + \
514 POLL_FLAGS_PADDING_SIZE) != \
515 sizeof(uint8_t) * BITS_PER_BYTE); \
516 tp_locvar->fds = NULL; \
517 tp_locvar->overflow = 0; \
518 \
519 sc_in( \
520 if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \
521 tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \
522 tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \
523 tp_locvar->overflow = 1; \
524 } else { \
525 tp_locvar->fds_length = nfds; \
526 tp_locvar->fds_max_len = nfds; \
527 } \
528 tp_locvar->alloc_fds = tp_locvar->fds_length * sizeof(struct pollfd); \
529 ) \
530 /* \
531 * On exit, the number of active FDs is determined by ret, \
532 * nfds stays the same as the entry, but we only want to \
533 * output the FDs that are relevant. \
534 */ \
535 sc_out( \
536 if (ret <= 0 || ret > nfds) \
537 goto error; \
538 \
539 if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \
540 tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \
541 tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \
542 tp_locvar->overflow = 1; \
543 } else { \
544 tp_locvar->fds_length = ret; \
545 tp_locvar->fds_max_len = nfds; \
546 } \
547 tp_locvar->alloc_fds = tp_locvar->fds_max_len * sizeof(struct pollfd); \
548 ) \
549 { \
550 int err; \
551 \
552 tp_locvar->fds = lttng_tp_mempool_alloc(tp_locvar->alloc_fds); \
553 if (!tp_locvar->fds) \
554 goto error; \
555 err = lib_ring_buffer_copy_from_user_check_nofault( \
556 tp_locvar->fds, ufds, tp_locvar->alloc_fds); \
557 if (err != 0) \
558 goto error; \
559 } \
560 goto end; \
561 \
562 error: \
563 tp_locvar->fds_length = 0; \
564 tp_locvar->fds_max_len = 0; \
565 end: \
566 ;
567
568 #define LTTNG_SYSCALL_POLL_fds_field \
569 sc_in( \
570 ctf_custom_field( \
571 ctf_custom_type( \
572 lttng_kernel_static_type_sequence("fds_length", \
573 lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_pollfd_fields), lttng_pollfd_fields, 0), \
574 0, \
575 none) \
576 ), \
577 fds, \
578 ctf_custom_code( \
579 uint32_t i; \
580 \
581 ctf_align(int) /* Align on largest field in struct. */ \
582 for (i = 0; i < tp_locvar->fds_length; i++) { \
583 ctf_integer_type(int, tp_locvar->fds[i].fd) \
584 ctf_integer_type(short, tp_locvar->fds[i].events) \
585 ctf_integer_bitfield_type(uint8_t, \
586 (uint8_t) tp_locvar->fds[i].events) \
587 } \
588 ) \
589 ) \
590 ) \
591 sc_out( \
592 ctf_custom_field( \
593 ctf_custom_type( \
594 lttng_kernel_static_type_sequence("fds_length", \
595 lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_pollfd_fields), lttng_pollfd_fields, 0), \
596 0, \
597 none) \
598 ), \
599 fds, \
600 ctf_custom_code( \
601 unsigned int i, nr = 0; \
602 \
603 ctf_align(int) /* Align on largest field in struct. */ \
604 /* \
605 * Iterate over the complete array, but only output \
606 * "ret" active FDs. \
607 */ \
608 for (i = 0; i < tp_locvar->fds_max_len; i++) { \
609 if (!tp_locvar->fds[i].revents) \
610 continue; \
611 if (nr++ >= tp_locvar->fds_length) \
612 break; \
613 ctf_integer_type(int, tp_locvar->fds[i].fd) \
614 ctf_integer_type(short, tp_locvar->fds[i].revents) \
615 ctf_integer_bitfield_type(uint8_t, \
616 (uint8_t) tp_locvar->fds[i].revents) \
617 } \
618 /* \
619 * If there is a discrepancy between ret and the \
620 * content of revents (e.g. caused by userspace corrupting \
621 * the array from a concurrent thread), we have to output \
622 * zeros to keep the trace readable. \
623 */ \
624 for (i = nr; i < tp_locvar->fds_length; i++) { \
625 ctf_integer_type(int, 0) \
626 ctf_integer_type(short, 0) \
627 ctf_integer_bitfield_type(uint8_t, 0) \
628 } \
629 ) \
630 ) \
631 )
632
633 #define LTTNG_SYSCALL_POLL_code_post \
634 lttng_tp_mempool_free(tp_locvar->fds);
635
636 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM)
637 #define OVERRIDE_32_poll
638 #define OVERRIDE_64_poll
639 SC_LTTNG_TRACEPOINT_EVENT_CODE(poll,
640 TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds,
641 unsigned int nfds, int timeout_msecs),
642 TP_ARGS(sc_exit(ret,) ufds, nfds, timeout_msecs),
643 TP_locvar(
644 LTTNG_SYSCALL_POLL_locvar
645 ),
646 TP_code_pre(
647 LTTNG_SYSCALL_POLL_code_pre
648 ),
649 TP_FIELDS(
650 sc_exit(ctf_integer(long, ret, ret))
651 sc_in(ctf_integer(int, timeout_msecs, timeout_msecs))
652 sc_inout(ctf_integer(unsigned int, nfds, nfds))
653 sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length))
654 sc_in(ctf_integer(uint8_t, overflow, tp_locvar->overflow))
655 LTTNG_SYSCALL_POLL_fds_field
656 ),
657 TP_code_post(
658 LTTNG_SYSCALL_POLL_code_post
659 )
660 )
661 #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */
662
663 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM)
664 #define OVERRIDE_32_ppoll
665 #define OVERRIDE_64_ppoll
666 SC_LTTNG_TRACEPOINT_EVENT_CODE(ppoll,
667 TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds,
668 unsigned int nfds, struct timespec * tsp, const sigset_t * sigmask, size_t sigsetsize),
669 TP_ARGS(sc_exit(ret,) ufds, nfds, tsp, sigmask, sigsetsize),
670 TP_locvar(
671 LTTNG_SYSCALL_POLL_locvar
672 ),
673 TP_code_pre(
674 LTTNG_SYSCALL_POLL_code_pre
675 ),
676 TP_FIELDS(
677 sc_exit(ctf_integer(long, ret, ret))
678 sc_in(ctf_integer(struct timespec *, tsp, tsp))
679 sc_in(ctf_integer(const sigset_t *, sigmask, sigmask))
680 sc_in(ctf_integer(size_t, sigsetsize, sigsetsize))
681 sc_inout(ctf_integer(unsigned int, nfds, nfds))
682 sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length))
683 sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow))
684 LTTNG_SYSCALL_POLL_fds_field
685 ),
686 TP_code_post(
687 LTTNG_SYSCALL_POLL_code_post
688 )
689 )
690 #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */
691
692 #include <linux/eventpoll.h>
693
694 SC_LTTNG_TRACEPOINT_ENUM(lttng_epoll_op,
695 TP_ENUM_VALUES(
696 ctf_enum_value("EPOLL_CTL_ADD", EPOLL_CTL_ADD)
697 ctf_enum_value("EPOLL_CTL_DEL", EPOLL_CTL_DEL)
698 ctf_enum_value("EPOLL_CTL_MOD", EPOLL_CTL_MOD)
699 )
700 )
701
702 #ifndef ONCE_LTTNG_TRACE_EPOLL_CTL_H
703 #define ONCE_LTTNG_TRACE_EPOLL_CTL_H
704
705 #define LTTNG_EPOLL_NRFLAGS (POLLHUP + 1)
706 #define EPOLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \
707 ilog2(LTTNG_EPOLL_NRFLAGS - 1)
708
709 /*
710 * Only extract the values specified by iBCS2 for now.
711 */
712 static const struct lttng_kernel_event_field *lttng_epoll_ctl_events_fields[] = {
713 /* 0x0001 */
714 [ilog2(POLLIN)] = lttng_kernel_static_event_field("EPOLLIN",
715 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
716 false, false, false),
717 /* 0x0002 */
718 [ilog2(POLLPRI)] = lttng_kernel_static_event_field("EPOLLPRI",
719 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
720 false, false, false),
721 /* 0x0004 */
722 [ilog2(POLLOUT)] = lttng_kernel_static_event_field("EPOLLOUT",
723 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
724 false, false, false),
725 /* 0x0008 */
726 [ilog2(POLLERR)] = lttng_kernel_static_event_field("EPOLLERR",
727 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
728 false, false, false),
729 /* 0x0010 */
730 [ilog2(POLLHUP)] = lttng_kernel_static_event_field("EPOLLHUP",
731 lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10),
732 false, false, false),
733 [ilog2(LTTNG_EPOLL_NRFLAGS)] = lttng_kernel_static_event_field("padding",
734 lttng_kernel_static_type_integer(EPOLL_FLAGS_PADDING_SIZE, 1, 0, __LITTLE_ENDIAN, 10),
735 false, false, false),
736 };
737
738 static const struct lttng_kernel_event_field *lttng_epoll_data_fields[] = {
739 [0] = lttng_kernel_static_event_field("u64",
740 lttng_kernel_static_type_integer_from_type(uint64_t, __BYTE_ORDER, 16),
741 false, false, false),
742 [1] = lttng_kernel_static_event_field("fd",
743 lttng_kernel_static_type_integer_from_type(int, __BYTE_ORDER, 10),
744 false, false, false),
745 };
746
747 static const struct lttng_kernel_event_field *epoll_ctl_fields[] = {
748 [0] = lttng_kernel_static_event_field("data_union",
749 lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_data_fields),
750 lttng_epoll_data_fields,
751 0),
752 false, false, false),
753 [1] = lttng_kernel_static_event_field("raw_events",
754 lttng_kernel_static_type_integer_from_type(uint32_t, __BYTE_ORDER, 16),
755 false, false, false),
756 [2] = lttng_kernel_static_event_field("events",
757 lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_ctl_events_fields),
758 lttng_epoll_ctl_events_fields,
759 0),
760 false, false, false),
761 };
762 #endif /* ONCE_LTTNG_TRACE_EPOLL_CTL_H */
763
764 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM)
765 #define OVERRIDE_32_epoll_ctl
766 #define OVERRIDE_64_epoll_ctl
767 SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_ctl,
768 TP_PROTO(sc_exit(long ret,) int epfd, int op, int fd,
769 struct epoll_event __user * uevent),
770 TP_ARGS(sc_exit(ret,) epfd, op, fd, uevent),
771 TP_locvar(
772 struct epoll_event event;
773 int err;
774 ),
775 TP_code_pre(
776 tp_locvar->err = lib_ring_buffer_copy_from_user_check_nofault(
777 &tp_locvar->event, uevent, sizeof(struct epoll_event));
778 ),
779 TP_FIELDS(
780 sc_exit(ctf_integer(long, ret, ret))
781 sc_in(ctf_integer(int, epfd, epfd))
782 sc_in(ctf_enum(lttng_epoll_op, int, op_enum, op))
783 sc_in(ctf_integer(int, fd, fd))
784 sc_in(
785 ctf_custom_field(
786 ctf_custom_type(
787 lttng_kernel_static_type_struct(ARRAY_SIZE(epoll_ctl_fields), epoll_ctl_fields, 0)
788 ),
789 event,
790 ctf_custom_code(
791 ctf_align(uint64_t)
792 if (!tp_locvar->err) {
793 ctf_integer_type(uint64_t, tp_locvar->event.data)
794 ctf_integer_type(int, tp_locvar->event.data)
795 ctf_integer_bitfield_type(uint32_t,
796 tp_locvar->event.events)
797 ctf_integer_bitfield_type(uint8_t,
798 (uint8_t) tp_locvar->event.events)
799 } else {
800 ctf_integer_type(uint64_t, 0)
801 ctf_integer_type(int, 0)
802 ctf_integer_bitfield_type(uint32_t, 0)
803 ctf_integer_bitfield_type(uint8_t, 0)
804 }
805 )
806 )
807 )
808 ),
809 TP_code_post()
810 )
811 #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */
812
813 #ifndef ONCE_LTTNG_TRACE_EPOLL_H
814 #define ONCE_LTTNG_TRACE_EPOLL_H
815
816 static const struct lttng_kernel_event_field *lttng_epoll_wait_fields[] = lttng_kernel_static_event_field_array(
817 [0] = lttng_kernel_static_event_field("data_union",
818 lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_data_fields), lttng_epoll_data_fields, 0),
819 false, false, false),
820 [1] = lttng_kernel_static_event_field("raw_events", lttng_kernel_static_type_integer_from_type(uint32_t, __BYTE_ORDER, 16),
821 false, false, false),
822 [2] = lttng_kernel_static_event_field("events",
823 lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_ctl_events_fields), lttng_epoll_ctl_events_fields, 0),
824 false, false, false),
825 );
826
827 #endif /* ONCE_LTTNG_TRACE_EPOLL_H */
828
829 #define LTTNG_SYSCALL_EPOLL_WAIT_locvar \
830 sc_out( \
831 unsigned int fds_length; \
832 uint8_t overflow; \
833 struct epoll_event *events; \
834 )
835
836 #define LTTNG_SYSCALL_EPOLL_WAIT_code_pre \
837 BUILD_BUG_ON(((ARRAY_SIZE(lttng_epoll_ctl_events_fields) - 1) + \
838 EPOLL_FLAGS_PADDING_SIZE) != \
839 sizeof(uint8_t) * BITS_PER_BYTE); \
840 sc_out({ \
841 int err; \
842 unsigned long maxalloc; \
843 \
844 tp_locvar->fds_length = 0; \
845 tp_locvar->events = NULL; \
846 tp_locvar->overflow = 0; \
847 \
848 if (maxevents <= 0 || ret <= 0 || ret > maxevents) \
849 goto skip_code; \
850 \
851 if (maxevents > PAGE_SIZE / sizeof(struct epoll_event)) { \
852 maxalloc = PAGE_SIZE / sizeof(struct epoll_event); \
853 } else { \
854 maxalloc = maxevents; \
855 } \
856 \
857 if (ret > maxalloc) { \
858 tp_locvar->fds_length = maxalloc; \
859 tp_locvar->overflow = 1; \
860 } else { \
861 tp_locvar->fds_length = ret; \
862 } \
863 \
864 tp_locvar->events = lttng_tp_mempool_alloc( \
865 maxalloc * sizeof(struct epoll_event)); \
866 if (!tp_locvar->events) { \
867 tp_locvar->fds_length = 0; \
868 goto skip_code; \
869 } \
870 \
871 err = lib_ring_buffer_copy_from_user_check_nofault( \
872 tp_locvar->events, uevents, \
873 maxalloc * sizeof(struct epoll_event)); \
874 if (err != 0) \
875 tp_locvar->fds_length = 0; \
876 } \
877 skip_code: \
878 )
879
880 #define LTTNG_SYSCALL_EPOLL_WAIT_fds_field \
881 ctf_custom_field( \
882 ctf_custom_type( \
883 lttng_kernel_static_type_sequence("fds_length", \
884 lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_wait_fields), lttng_epoll_wait_fields, 0), \
885 0, \
886 none) \
887 ), \
888 fds, \
889 ctf_custom_code( \
890 uint32_t i; \
891 \
892 ctf_align(uint64_t) \
893 for (i = 0; i < tp_locvar->fds_length; i++) { \
894 ctf_integer_type(uint64_t, tp_locvar->events[i].data) \
895 ctf_integer_type(int, tp_locvar->events[i].data) \
896 ctf_integer_bitfield_type(uint32_t, \
897 tp_locvar->events[i].events) \
898 ctf_integer_bitfield_type(uint8_t, \
899 (uint8_t) tp_locvar->events[i].events) \
900 } \
901 ) \
902 )
903
904 #define LTTNG_SYSCALL_EPOLL_WAIT_code_post \
905 sc_out( \
906 lttng_tp_mempool_free(tp_locvar->events); \
907 )
908
909
910 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM)
911 #define OVERRIDE_32_epoll_wait
912 #define OVERRIDE_64_epoll_wait
913 SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_wait,
914 TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents,
915 int maxevents, int timeout),
916 TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout),
917 TP_locvar(
918 LTTNG_SYSCALL_EPOLL_WAIT_locvar
919 ),
920 TP_code_pre(
921 LTTNG_SYSCALL_EPOLL_WAIT_code_pre
922 ),
923 TP_FIELDS(
924 sc_exit(ctf_integer(long, ret, ret))
925 sc_in(ctf_integer(int, epfd, epfd))
926 sc_in(ctf_integer(int, maxevents, maxevents))
927 sc_in(ctf_integer(int, timeout, timeout))
928 sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length))
929 sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow))
930 sc_out(
931 LTTNG_SYSCALL_EPOLL_WAIT_fds_field
932 )
933 ),
934 TP_code_post(
935 LTTNG_SYSCALL_EPOLL_WAIT_code_post
936 )
937 )
938 #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */
939
940 #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM)
941 #define OVERRIDE_32_epoll_pwait
942 #define OVERRIDE_64_epoll_pwait
943 SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_pwait,
944 TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents,
945 int maxevents, int timeout, const sigset_t __user * sigmask, size_t sigsetsize),
946 TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout, sigmask, sigsetsize),
947 TP_locvar(
948 LTTNG_SYSCALL_EPOLL_WAIT_locvar
949 ),
950 TP_code_pre(
951 LTTNG_SYSCALL_EPOLL_WAIT_code_pre
952 ),
953 TP_FIELDS(
954 sc_exit(ctf_integer(long, ret, ret))
955 sc_in(ctf_integer(int, epfd, epfd))
956 sc_in(ctf_integer(int, maxevents, maxevents))
957 sc_in(ctf_integer(int, timeout, timeout))
958 sc_in(ctf_integer_hex(const sigset_t *, sigmask, sigmask))
959 sc_in(ctf_integer(size_t, sigsetsize, sigsetsize))
960 sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length))
961 sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow))
962 sc_out(
963 LTTNG_SYSCALL_EPOLL_WAIT_fds_field
964 )
965 ),
966 TP_code_post(
967 LTTNG_SYSCALL_EPOLL_WAIT_code_post
968 )
969 )
970 #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */
971
972 #if (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM)
973 #define OVERRIDE_32_socketpair
974 #define OVERRIDE_64_socketpair
975 SC_LTTNG_TRACEPOINT_EVENT(socketpair,
976 TP_PROTO(sc_exit(long ret,) int family, int type, int protocol, int *usockvec),
977 TP_ARGS(sc_exit(ret,) family, type, protocol, usockvec),
978 TP_FIELDS(
979 sc_exit(ctf_integer(long, ret, ret))
980 sc_in(ctf_integer(int, family, family))
981 sc_in(ctf_integer(int, type, type))
982 sc_in(ctf_integer(int, protocol, protocol))
983 sc_out(ctf_user_array(int, socket, usockvec, 2))
984 )
985 )
986 #endif /* (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */
987
988 /*
989 * Enumeration of the open flags, as described in the 'open'
990 * system call man page.
991 */
992 SC_LTTNG_TRACEPOINT_ENUM(lttng_file_status_flags,
993 TP_ENUM_VALUES(
994 ctf_enum_value("O_RDONLY", O_RDONLY)
995 ctf_enum_value("O_WRONLY", O_WRONLY)
996 ctf_enum_value("O_RDWR", O_RDWR)
997 ctf_enum_value("O_CREAT", O_CREAT)
998 ctf_enum_value("O_EXCL", O_EXCL)
999 ctf_enum_value("O_NOCTTY", O_NOCTTY)
1000 ctf_enum_value("O_TRUNC", O_TRUNC)
1001 ctf_enum_value("O_APPEND", O_APPEND)
1002 ctf_enum_value("O_NONBLOCK", O_NONBLOCK)
1003 ctf_enum_value("O_DSYNC", O_DSYNC)
1004 ctf_enum_value("FASYNC", FASYNC)
1005 ctf_enum_value("O_DIRECT", O_DIRECT)
1006 ctf_enum_value("O_LARGEFILE", O_LARGEFILE)
1007 ctf_enum_value("O_DIRECTORY", O_DIRECTORY)
1008 ctf_enum_value("O_NOFOLLOW", O_NOFOLLOW)
1009 ctf_enum_value("O_NOATIME", O_NOATIME)
1010 ctf_enum_value("O_CLOEXEC", O_CLOEXEC)
1011 ctf_enum_value("O_SYNC", __O_SYNC)
1012 ctf_enum_value("O_PATH", O_PATH)
1013 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0))
1014 ctf_enum_value("O_TMPFILE", __O_TMPFILE)
1015 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0)) */
1016 )
1017 )
1018
1019 /*
1020 * Enumeration of the open flags, as described in the 'open'
1021 * system call man page.
1022 */
1023 SC_LTTNG_TRACEPOINT_ENUM(lttng_file_mode,
1024 TP_ENUM_VALUES(
1025 ctf_enum_value("S_IRWXU", S_IRWXU)
1026 ctf_enum_value("S_IRUSR", S_IRUSR)
1027 ctf_enum_value("S_IWUSR", S_IWUSR)
1028 ctf_enum_value("S_IXUSR", S_IXUSR)
1029 ctf_enum_value("S_IRWXG", S_IRWXG)
1030 ctf_enum_value("S_IRGRP", S_IRGRP)
1031 ctf_enum_value("S_IWGRP", S_IWGRP)
1032 ctf_enum_value("S_IXGRP", S_IXGRP)
1033 ctf_enum_value("S_IRWXO", S_IRWXO)
1034 ctf_enum_value("S_IROTH", S_IROTH)
1035 ctf_enum_value("S_IWOTH", S_IWOTH)
1036 ctf_enum_value("S_IXOTH", S_IXOTH)
1037 ctf_enum_value("S_ISUID", S_ISUID)
1038 ctf_enum_value("S_ISGID", S_ISGID)
1039 ctf_enum_value("S_ISVTX", S_ISVTX)
1040 )
1041 )
1042
1043 #define OVERRIDE_32_openat
1044 #define OVERRIDE_64_openat
1045 SC_LTTNG_TRACEPOINT_EVENT(openat,
1046 TP_PROTO(sc_exit(long ret,) int dfd, const char * filename, int flags, umode_t mode),
1047 TP_ARGS(sc_exit(ret,) dfd, filename, flags, mode),
1048 TP_FIELDS(
1049 sc_exit(ctf_integer(long, ret, ret))
1050 sc_in(ctf_integer(int, dfd, dfd))
1051 sc_in(ctf_user_string(filename, filename))
1052 sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags))
1053 sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode))
1054 )
1055 )
1056
1057 #define OVERRIDE_32_open
1058 #define OVERRIDE_64_open
1059 SC_LTTNG_TRACEPOINT_EVENT(open,
1060 TP_PROTO(sc_exit(long ret,) const char * filename, int flags, umode_t mode),
1061 TP_ARGS(sc_exit(ret,) filename, flags, mode),
1062 TP_FIELDS(
1063 sc_exit(ctf_integer(long, ret, ret))
1064 sc_in(ctf_user_string(filename, filename))
1065 sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags))
1066 sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode))
1067 )
1068 )
1069
1070 #endif /* CREATE_SYSCALL_TABLE */
LTTng 2.0/0.x modules
This page took 0.05182 seconds and 4 git commands to generate.