Commit | Line | Data |
---|---|---|
b7cdc182 | 1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */ |
6314c2d3 | 2 | |
e42e81fd MD |
3 | #ifndef CREATE_SYSCALL_TABLE |
4 | ||
769ad370 MD |
5 | #define OVERRIDE_32_execve |
6 | #define OVERRIDE_64_execve | |
cb3ef14c | 7 | SC_LTTNG_TRACEPOINT_EVENT(execve, |
e17f92ba MD |
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), | |
57ede728 MD |
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 | ) | |
e42e81fd MD |
15 | ) |
16 | ||
d775625e GB |
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 (LINUX_VERSION_CODE >= KERNEL_VERSION(5,5,0)) | |
88 | ctf_enum_value("CLONE_CLEAR_SIGHAND", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CLEAR_SIGHAND)) | |
89 | #endif /* #if (LINUX_VERSION_CODE >= 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 (LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0)) | |
95 | ctf_enum_value("CLONE_NEWCGROUP", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWCGROUP)) | |
96 | #endif /* #if (LINUX_VERSION_CODE >= 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 (LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0)) | |
106 | ctf_enum_value("CLONE_PIDFD", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PIDFD)) | |
107 | #endif /* #if (LINUX_VERSION_CODE >= 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 | { \ | |
121 | .name = "exit_signal", \ | |
122 | .type = { \ | |
123 | .atype = atype_enum_nestable, \ | |
124 | .u = { \ | |
125 | .enum_nestable = { \ | |
126 | .desc = &__enum_lttng_clone_exit_signal_flags, \ | |
127 | .container_type = __LTTNG_COMPOUND_LITERAL( \ | |
128 | struct lttng_type, __type_integer(unsigned long, \ | |
129 | CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS, \ | |
130 | 1, -1, __BYTE_ORDER, 16, none)), \ | |
131 | }, \ | |
132 | }, \ | |
133 | }, \ | |
134 | } | |
135 | ||
136 | #define LTTNG_CLONE_FLAGS_OPTIONS \ | |
137 | { \ | |
138 | .name = "options", \ | |
139 | .type = { \ | |
140 | .atype = atype_enum_nestable, \ | |
141 | .u = { \ | |
142 | .enum_nestable = { \ | |
143 | .desc = &__enum_lttng_clone_option_flags, \ | |
144 | .container_type = __LTTNG_COMPOUND_LITERAL( \ | |
145 | struct lttng_type, __type_integer(unsigned long,\ | |
146 | sizeof(unsigned long) * CHAR_BIT - CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS, \ | |
147 | 1, -1, __BYTE_ORDER, 16, none)), \ | |
148 | }, \ | |
149 | }, \ | |
150 | }, \ | |
151 | } | |
152 | ||
153 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
154 | #define LTTNG_CLONE_FLAGS \ | |
155 | [0] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, \ | |
156 | [1] = LTTNG_CLONE_FLAGS_OPTIONS, | |
157 | ||
158 | #else | |
159 | #define LTTNG_CLONE_FLAGS \ | |
160 | [0] = LTTNG_CLONE_FLAGS_OPTIONS, \ | |
161 | [1] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, | |
162 | #endif | |
163 | ||
164 | ||
769ad370 MD |
165 | #define OVERRIDE_32_clone |
166 | #define OVERRIDE_64_clone | |
cb3ef14c | 167 | SC_LTTNG_TRACEPOINT_EVENT(clone, |
e17f92ba | 168 | TP_PROTO(sc_exit(long ret,) unsigned long clone_flags, unsigned long newsp, |
ba21566b | 169 | void __user *parent_tid, |
b5aa4b6a | 170 | void __user *child_tid), |
e17f92ba | 171 | TP_ARGS(sc_exit(ret,) clone_flags, newsp, parent_tid, child_tid), |
57ede728 MD |
172 | TP_FIELDS( |
173 | sc_exit(ctf_integer(long, ret, ret)) | |
d775625e GB |
174 | sc_in( |
175 | ctf_custom_field( | |
176 | ctf_custom_type( | |
177 | { | |
178 | .atype = atype_struct_nestable, | |
179 | .u.struct_nestable.nr_fields = 2, | |
180 | .u.struct_nestable.fields = | |
181 | __LTTNG_COMPOUND_LITERAL(struct lttng_event_field, | |
182 | LTTNG_CLONE_FLAGS | |
183 | ), | |
d1f63533 | 184 | .u.struct_nestable.alignment = lttng_alignof(unsigned long) * CHAR_BIT, |
d775625e GB |
185 | } |
186 | ), | |
187 | flags, | |
188 | ctf_custom_code( | |
d1f63533 | 189 | ctf_integer_type(unsigned long, clone_flags) |
d775625e GB |
190 | ) |
191 | ) | |
192 | ) | |
57ede728 MD |
193 | sc_in(ctf_integer_hex(unsigned long, newsp, newsp)) |
194 | sc_in(ctf_integer_hex(void *, parent_tid, parent_tid)) | |
195 | sc_in(ctf_integer_hex(void *, child_tid, child_tid)) | |
196 | ) | |
ba21566b MD |
197 | ) |
198 | ||
b5aa4b6a | 199 | /* present in 32, missing in 64 due to old kernel headers */ |
644d6e9c MD |
200 | #define OVERRIDE_32_getcpu |
201 | #define OVERRIDE_64_getcpu | |
cb3ef14c | 202 | SC_LTTNG_TRACEPOINT_EVENT(getcpu, |
e17f92ba MD |
203 | TP_PROTO(sc_exit(long ret,) unsigned __user *cpup, unsigned __user *nodep, void *tcache), |
204 | TP_ARGS(sc_exit(ret,) cpup, nodep, tcache), | |
57ede728 MD |
205 | TP_FIELDS( |
206 | sc_exit(ctf_integer(long, ret, ret)) | |
207 | sc_out(ctf_integer_hex(unsigned *, cpup, cpup)) | |
208 | sc_out(ctf_integer_hex(unsigned *, nodep, nodep)) | |
209 | sc_inout(ctf_integer_hex(void *, tcache, tcache)) | |
210 | ) | |
b5aa4b6a MD |
211 | ) |
212 | ||
af44bd3a MD |
213 | #define OVERRIDE_32_pipe2 |
214 | #define OVERRIDE_64_pipe2 | |
cb3ef14c | 215 | SC_LTTNG_TRACEPOINT_EVENT(pipe2, |
af44bd3a MD |
216 | TP_PROTO(sc_exit(long ret,) int * fildes, int flags), |
217 | TP_ARGS(sc_exit(ret,) fildes, flags), | |
57ede728 MD |
218 | TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) |
219 | sc_out(ctf_user_array(int, fildes, fildes, 2)) | |
220 | sc_in(ctf_integer(int, flags, flags)) | |
221 | ) | |
af44bd3a MD |
222 | ) |
223 | ||
29751f7c JD |
224 | #define LTTNG_SYSCALL_SELECT_locvar \ |
225 | unsigned long *fds_in, *fds_out, *fds_ex; \ | |
226 | unsigned long nr_bytes, nr_ulong; \ | |
227 | uint8_t overflow; | |
228 | ||
229 | #define LTTNG_SYSCALL_SELECT_code_pre \ | |
230 | sc_inout( \ | |
231 | { \ | |
232 | int err; \ | |
233 | unsigned int n_in_bytes; \ | |
234 | \ | |
235 | tp_locvar->fds_in = NULL; \ | |
236 | tp_locvar->fds_out = NULL; \ | |
237 | tp_locvar->fds_ex = NULL; \ | |
238 | tp_locvar->overflow = 0; \ | |
239 | \ | |
240 | sc_out( \ | |
241 | if (ret <= 0) \ | |
242 | goto error; \ | |
243 | ) \ | |
244 | \ | |
245 | if (n <= 0) \ | |
246 | goto error; \ | |
247 | \ | |
248 | /* On error or bogus input, don't copy anything. */ \ | |
249 | if (n >__FD_SETSIZE) \ | |
250 | goto error; \ | |
251 | \ | |
252 | n_in_bytes = DIV_ROUND_UP((unsigned int) n, BITS_PER_BYTE); \ | |
253 | \ | |
254 | /* \ | |
255 | * Limit atomic memory allocation to one page, since n \ | |
256 | * is limited to 1024 and the smallest page size on Linux \ | |
257 | * is 4k, this should not happen, don't try to make it work. \ | |
258 | */ \ | |
259 | if (n_in_bytes > PAGE_SIZE) { \ | |
260 | WARN_ON_ONCE(1); \ | |
261 | /* Inform the user that we did not output everything. */ \ | |
262 | tp_locvar->overflow = 1; \ | |
263 | goto error; \ | |
264 | } else { \ | |
265 | tp_locvar->nr_bytes = n_in_bytes; \ | |
266 | tp_locvar->nr_ulong = DIV_ROUND_UP(n_in_bytes, \ | |
267 | sizeof(unsigned long)); \ | |
268 | } \ | |
269 | \ | |
270 | if (inp) { \ | |
ec85ce1d JD |
271 | tp_locvar->fds_in = lttng_tp_mempool_alloc( \ |
272 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
29751f7c JD |
273 | if (!tp_locvar->fds_in) \ |
274 | goto error; \ | |
275 | \ | |
276 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
277 | tp_locvar->fds_in, inp, \ | |
278 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
279 | if (err != 0) \ | |
280 | goto error; \ | |
281 | } \ | |
282 | if (outp) { \ | |
ec85ce1d JD |
283 | tp_locvar->fds_out = lttng_tp_mempool_alloc( \ |
284 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
29751f7c JD |
285 | if (!tp_locvar->fds_out) \ |
286 | goto error; \ | |
287 | \ | |
288 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
289 | tp_locvar->fds_out, outp, \ | |
290 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
291 | if (err != 0) \ | |
292 | goto error; \ | |
293 | } \ | |
294 | if (exp) { \ | |
ec85ce1d JD |
295 | tp_locvar->fds_ex = lttng_tp_mempool_alloc( \ |
296 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
29751f7c JD |
297 | if (!tp_locvar->fds_ex) \ |
298 | goto error; \ | |
299 | \ | |
300 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
301 | tp_locvar->fds_ex, exp, \ | |
302 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
303 | if (err != 0) \ | |
304 | goto error; \ | |
305 | } \ | |
306 | goto end; \ | |
307 | \ | |
308 | error: \ | |
309 | tp_locvar->nr_bytes = 0; \ | |
310 | tp_locvar->nr_ulong = 0; \ | |
311 | end: ; /* Label at end of compound statement. */ \ | |
312 | } \ | |
313 | ) | |
314 | ||
315 | #define LTTNG_SYSCALL_SELECT_fds_field_LE(name, input) \ | |
316 | ctf_custom_field( \ | |
317 | ctf_custom_type( \ | |
ceabb767 | 318 | __type_integer(uint8_t, 0, 0, 0, __BYTE_ORDER, 10, none) \ |
29751f7c | 319 | ), \ |
ceabb767 | 320 | _ ## name ## _length, \ |
29751f7c | 321 | ctf_custom_code( \ |
29751f7c JD |
322 | if (input) { \ |
323 | ctf_integer_type(uint8_t, tp_locvar->nr_bytes) \ | |
324 | ctf_align(uint8_t) \ | |
325 | } else { \ | |
326 | ctf_integer_type(uint8_t, 0) \ | |
327 | ctf_align(uint8_t) \ | |
29751f7c | 328 | } \ |
ceabb767 MD |
329 | ) \ |
330 | ) \ | |
331 | ctf_custom_field( \ | |
332 | ctf_custom_type( \ | |
333 | { \ | |
334 | .atype = atype_sequence_nestable, \ | |
335 | .u.sequence_nestable.length_name = "_" #name "_length", \ | |
336 | .u.sequence_nestable.elem_type = __LTTNG_COMPOUND_LITERAL(struct lttng_type, \ | |
337 | __type_integer(uint8_t, 0, 0, 0, __BYTE_ORDER, 16, none)), \ | |
338 | .u.sequence_nestable.alignment = 0, \ | |
339 | } \ | |
340 | ), \ | |
341 | name, \ | |
342 | ctf_custom_code( \ | |
343 | unsigned int src; \ | |
344 | unsigned int nr_bytes_out = 0; \ | |
345 | \ | |
346 | if (!input) \ | |
347 | goto skip_##name; \ | |
29751f7c JD |
348 | \ |
349 | for (src = 0; src < tp_locvar->nr_ulong; src++) { \ | |
350 | int dst; \ | |
351 | for (dst = 0; dst < sizeof(long); dst++) { \ | |
352 | if (nr_bytes_out++ >= tp_locvar->nr_bytes) { \ | |
353 | goto skip_##name; \ | |
354 | } \ | |
355 | ctf_user_integer_type(uint8_t, \ | |
356 | ((uint8_t __user *) (input->fds_bits + src))[dst]); \ | |
357 | } \ | |
358 | } \ | |
359 | skip_##name: ; \ | |
360 | ) \ | |
361 | ) | |
362 | ||
363 | #define LTTNG_SYSCALL_SELECT_fds_field_BE(name, input) \ | |
364 | ctf_custom_field( \ | |
365 | ctf_custom_type( \ | |
ceabb767 | 366 | __type_integer(uint8_t, 0, 0, 0, __BYTE_ORDER, 10, none) \ |
29751f7c | 367 | ), \ |
ceabb767 | 368 | _ ## name ## _length, \ |
29751f7c | 369 | ctf_custom_code( \ |
29751f7c JD |
370 | if (input) { \ |
371 | ctf_integer_type(uint8_t, tp_locvar->nr_bytes) \ | |
372 | ctf_align(uint8_t) \ | |
373 | } else { \ | |
374 | ctf_integer_type(uint8_t, 0) \ | |
375 | ctf_align(uint8_t) \ | |
29751f7c | 376 | } \ |
ceabb767 MD |
377 | ) \ |
378 | ) \ | |
379 | ctf_custom_field( \ | |
380 | ctf_custom_type( \ | |
381 | { \ | |
382 | .atype = atype_sequence_nestable, \ | |
383 | .u.sequence_nestable.elem_type = __LTTNG_COMPOUND_LITERAL(struct lttng_type, \ | |
384 | __type_integer(uint8_t, 0, 0, 0, __BYTE_ORDER, 16, none)), \ | |
385 | .u.sequence_nestable.alignment = 0, \ | |
386 | } \ | |
387 | ), \ | |
388 | name, \ | |
389 | ctf_custom_code( \ | |
390 | unsigned int src, nr_bytes_out = 0; \ | |
391 | \ | |
392 | if (!input) \ | |
393 | goto skip_##name; \ | |
29751f7c JD |
394 | \ |
395 | for (src = 0; src < tp_locvar->nr_ulong; src++) { \ | |
396 | int dst; \ | |
397 | for (dst = sizeof(long); dst >= 0; dst--) { \ | |
398 | if (nr_bytes_out++ >= tp_locvar->nr_bytes) { \ | |
399 | goto skip_##name; \ | |
400 | } \ | |
401 | ctf_user_integer_type(uint8_t, \ | |
402 | ((uint8_t __user *) (input->fds_bits + src))[dst]); \ | |
403 | } \ | |
404 | } \ | |
405 | skip_##name: ; \ | |
406 | ) \ | |
407 | ) | |
408 | ||
409 | #define LTTNG_SYSCALL_SELECT_code_post \ | |
ec85ce1d JD |
410 | lttng_tp_mempool_free(tp_locvar->fds_in); \ |
411 | lttng_tp_mempool_free(tp_locvar->fds_out); \ | |
412 | lttng_tp_mempool_free(tp_locvar->fds_ex); | |
29751f7c | 413 | |
a6370148 | 414 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
29751f7c JD |
415 | #define OVERRIDE_32_select |
416 | #define OVERRIDE_64_select | |
417 | SC_LTTNG_TRACEPOINT_EVENT_CODE(select, | |
418 | TP_PROTO(sc_exit(long ret,) int n, fd_set __user *inp, fd_set __user *outp, | |
419 | fd_set __user *exp, struct timeval *tvp), | |
420 | TP_ARGS(sc_exit(ret,) n, inp, outp, exp, tvp), | |
421 | TP_locvar( | |
422 | LTTNG_SYSCALL_SELECT_locvar | |
423 | ), | |
424 | TP_code_pre( | |
425 | LTTNG_SYSCALL_SELECT_code_pre | |
426 | ), | |
427 | TP_FIELDS( | |
428 | sc_exit(ctf_integer(long, ret, ret)) | |
429 | sc_in(ctf_integer(int, n, n)) | |
430 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
431 | sc_inout(ctf_integer(struct timeval *, tvp, tvp)) | |
432 | ||
433 | sc_inout( | |
434 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
435 | LTTNG_SYSCALL_SELECT_fds_field_LE(readfds, inp) | |
436 | LTTNG_SYSCALL_SELECT_fds_field_LE(writefds, outp) | |
437 | LTTNG_SYSCALL_SELECT_fds_field_LE(exceptfds, exp) | |
438 | #else | |
439 | LTTNG_SYSCALL_SELECT_fds_field_BE(readfds, inp) | |
440 | LTTNG_SYSCALL_SELECT_fds_field_BE(writefds, outp) | |
441 | LTTNG_SYSCALL_SELECT_fds_field_BE(exceptfds, exp) | |
442 | #endif | |
443 | ) | |
444 | ), | |
445 | TP_code_post( | |
446 | LTTNG_SYSCALL_SELECT_code_post | |
447 | ) | |
448 | ) | |
639655f9 | 449 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
29751f7c JD |
450 | |
451 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
452 | #define OVERRIDE_32_pselect6 | |
453 | #define OVERRIDE_64_pselect6 | |
454 | SC_LTTNG_TRACEPOINT_EVENT_CODE(pselect6, | |
455 | TP_PROTO(sc_exit(long ret,) int n, fd_set __user * inp, fd_set __user * outp, | |
456 | fd_set __user * exp, struct timeval __user * tvp, void __user * sig), | |
457 | TP_ARGS(sc_exit(ret,) n, inp, outp, exp, tvp, sig), | |
458 | TP_locvar( | |
459 | LTTNG_SYSCALL_SELECT_locvar | |
460 | ), | |
461 | TP_code_pre( | |
462 | LTTNG_SYSCALL_SELECT_code_pre | |
463 | ), | |
464 | TP_FIELDS( | |
465 | sc_exit(ctf_integer(long, ret, ret)) | |
466 | sc_in(ctf_integer(int, n, n)) | |
467 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
468 | sc_inout(ctf_integer(struct timeval *, tvp, tvp)) | |
469 | sc_in(ctf_integer_hex(void *, sig, sig)) | |
470 | ||
471 | sc_inout( | |
472 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
473 | LTTNG_SYSCALL_SELECT_fds_field_LE(readfds, inp) | |
474 | LTTNG_SYSCALL_SELECT_fds_field_LE(writefds, outp) | |
475 | LTTNG_SYSCALL_SELECT_fds_field_LE(exceptfds, exp) | |
476 | #else | |
477 | LTTNG_SYSCALL_SELECT_fds_field_BE(readfds, inp) | |
478 | LTTNG_SYSCALL_SELECT_fds_field_BE(writefds, outp) | |
479 | LTTNG_SYSCALL_SELECT_fds_field_BE(exceptfds, exp) | |
480 | #endif | |
481 | ) | |
482 | ), | |
483 | TP_code_post( | |
484 | LTTNG_SYSCALL_SELECT_code_post | |
485 | ) | |
486 | ) | |
487 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
488 | ||
6a2ecd2e JD |
489 | #ifndef ONCE_LTTNG_TRACE_POLL_H |
490 | #define ONCE_LTTNG_TRACE_POLL_H | |
491 | ||
492 | #define LTTNG_POLL_NRFLAGS (POLLNVAL + 1) | |
493 | #define POLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \ | |
494 | ilog2(LTTNG_POLL_NRFLAGS - 1) | |
495 | ||
496 | /* | |
497 | * Only extract the values specified by iBCS2 for now. | |
498 | */ | |
499 | static struct lttng_event_field lttng_pollfd_flag_fields[] = { | |
500 | [ilog2(POLLIN)] = { | |
501 | .name = "POLLIN", | |
502 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
503 | }, | |
504 | [ilog2(POLLPRI)] = { | |
505 | .name = "POLLPRI", | |
506 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
507 | }, | |
508 | [ilog2(POLLOUT)] = { | |
509 | .name = "POLLOUT", | |
510 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
511 | }, | |
512 | [ilog2(POLLERR)] = { | |
513 | .name = "POLLERR", | |
514 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
515 | }, | |
516 | [ilog2(POLLHUP)] = { | |
517 | .name = "POLLHUP", | |
518 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
519 | }, | |
520 | [ilog2(POLLNVAL)] = { | |
521 | .name = "POLLNVAL", | |
522 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
523 | }, | |
524 | [ilog2(LTTNG_POLL_NRFLAGS)] = { | |
525 | .name = "padding", | |
526 | .type = __type_integer(int, POLL_FLAGS_PADDING_SIZE, 1, 0, | |
527 | __LITTLE_ENDIAN, 10, none), | |
528 | }, | |
529 | }; | |
530 | ||
531 | static struct lttng_event_field lttng_pollfd_fields[] = { | |
532 | [0] = { | |
533 | .name = "fd", | |
534 | .type = __type_integer(int, 0, 0, 0, __BYTE_ORDER, 10, none), | |
535 | }, | |
536 | [1] = { | |
537 | .name = "raw_events", | |
538 | .type = __type_integer(short, 0, 0, 0, __BYTE_ORDER, 16, none), | |
539 | }, | |
540 | [2] = { | |
541 | .name = "events", | |
542 | .type = { | |
ceabb767 MD |
543 | .atype = atype_struct_nestable, |
544 | .u.struct_nestable.nr_fields = ARRAY_SIZE(lttng_pollfd_flag_fields), | |
545 | .u.struct_nestable.fields = lttng_pollfd_flag_fields, | |
546 | .u.struct_nestable.alignment = 0, | |
6a2ecd2e JD |
547 | } |
548 | }, | |
549 | }; | |
550 | ||
551 | static struct lttng_type lttng_pollfd_elem = { | |
ceabb767 MD |
552 | .atype = atype_struct_nestable, |
553 | .u.struct_nestable.nr_fields = ARRAY_SIZE(lttng_pollfd_fields), | |
554 | .u.struct_nestable.fields = lttng_pollfd_fields, | |
555 | .u.struct_nestable.alignment = 0, | |
6a2ecd2e JD |
556 | }; |
557 | #endif /* ONCE_LTTNG_TRACE_POLL_H */ | |
558 | ||
559 | #define LTTNG_SYSCALL_POLL_locvar \ | |
560 | unsigned int fds_length, fds_max_len, alloc_fds; \ | |
561 | struct pollfd *fds; \ | |
562 | uint8_t overflow; | |
563 | ||
564 | #define LTTNG_SYSCALL_POLL_code_pre \ | |
565 | BUILD_BUG_ON(((ARRAY_SIZE(lttng_pollfd_flag_fields) - 1) + \ | |
566 | POLL_FLAGS_PADDING_SIZE) != \ | |
567 | sizeof(uint8_t) * BITS_PER_BYTE); \ | |
568 | tp_locvar->fds = NULL; \ | |
569 | tp_locvar->overflow = 0; \ | |
570 | \ | |
571 | sc_in( \ | |
572 | if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \ | |
573 | tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \ | |
574 | tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \ | |
575 | tp_locvar->overflow = 1; \ | |
576 | } else { \ | |
577 | tp_locvar->fds_length = nfds; \ | |
578 | tp_locvar->fds_max_len = nfds; \ | |
579 | } \ | |
580 | tp_locvar->alloc_fds = tp_locvar->fds_length * sizeof(struct pollfd); \ | |
581 | ) \ | |
582 | /* \ | |
583 | * On exit, the number of active FDs is determined by ret, \ | |
584 | * nfds stays the same as the entry, but we only want to \ | |
585 | * output the FDs that are relevant. \ | |
586 | */ \ | |
587 | sc_out( \ | |
588 | if (ret <= 0 || ret > nfds) \ | |
589 | goto error; \ | |
590 | \ | |
591 | if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \ | |
592 | tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \ | |
593 | tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \ | |
594 | tp_locvar->overflow = 1; \ | |
595 | } else { \ | |
596 | tp_locvar->fds_length = ret; \ | |
597 | tp_locvar->fds_max_len = nfds; \ | |
598 | } \ | |
599 | tp_locvar->alloc_fds = tp_locvar->fds_max_len * sizeof(struct pollfd); \ | |
600 | ) \ | |
601 | { \ | |
602 | int err; \ | |
603 | \ | |
ec85ce1d | 604 | tp_locvar->fds = lttng_tp_mempool_alloc(tp_locvar->alloc_fds); \ |
6a2ecd2e JD |
605 | if (!tp_locvar->fds) \ |
606 | goto error; \ | |
607 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
41a3cca2 | 608 | tp_locvar->fds, ufds, tp_locvar->alloc_fds); \ |
6a2ecd2e JD |
609 | if (err != 0) \ |
610 | goto error; \ | |
611 | } \ | |
612 | goto end; \ | |
613 | \ | |
614 | error: \ | |
615 | tp_locvar->fds_length = 0; \ | |
616 | tp_locvar->fds_max_len = 0; \ | |
617 | end: \ | |
618 | ; | |
619 | ||
620 | #define LTTNG_SYSCALL_POLL_fds_field \ | |
621 | sc_in( \ | |
622 | ctf_custom_field( \ | |
623 | ctf_custom_type( \ | |
ceabb767 MD |
624 | { \ |
625 | .atype = atype_sequence_nestable, \ | |
626 | .u.sequence_nestable.length_name = "fds_length", \ | |
627 | .u.sequence_nestable.elem_type = <tng_pollfd_elem, \ | |
628 | } \ | |
6a2ecd2e JD |
629 | ), \ |
630 | fds, \ | |
631 | ctf_custom_code( \ | |
632 | uint32_t i; \ | |
633 | \ | |
634 | ctf_align(int) /* Align on largest field in struct. */ \ | |
635 | for (i = 0; i < tp_locvar->fds_length; i++) { \ | |
636 | ctf_integer_type(int, tp_locvar->fds[i].fd) \ | |
637 | ctf_integer_type(short, tp_locvar->fds[i].events) \ | |
638 | ctf_integer_bitfield_type(uint8_t, \ | |
639 | (uint8_t) tp_locvar->fds[i].events) \ | |
640 | } \ | |
641 | ) \ | |
642 | ) \ | |
643 | ) \ | |
644 | sc_out( \ | |
645 | ctf_custom_field( \ | |
646 | ctf_custom_type( \ | |
ceabb767 MD |
647 | { \ |
648 | .atype = atype_sequence_nestable, \ | |
649 | .u.sequence_nestable.length_name = "fds_length", \ | |
650 | .u.sequence_nestable.elem_type = <tng_pollfd_elem, \ | |
651 | } \ | |
6a2ecd2e JD |
652 | ), \ |
653 | fds, \ | |
654 | ctf_custom_code( \ | |
655 | unsigned int i, nr = 0; \ | |
656 | \ | |
657 | ctf_align(int) /* Align on largest field in struct. */ \ | |
658 | /* \ | |
659 | * Iterate over the complete array, but only output \ | |
660 | * "ret" active FDs. \ | |
661 | */ \ | |
662 | for (i = 0; i < tp_locvar->fds_max_len; i++) { \ | |
663 | if (!tp_locvar->fds[i].revents) \ | |
664 | continue; \ | |
665 | if (nr++ >= tp_locvar->fds_length) \ | |
666 | break; \ | |
667 | ctf_integer_type(int, tp_locvar->fds[i].fd) \ | |
668 | ctf_integer_type(short, tp_locvar->fds[i].revents) \ | |
669 | ctf_integer_bitfield_type(uint8_t, \ | |
670 | (uint8_t) tp_locvar->fds[i].revents) \ | |
671 | } \ | |
672 | /* \ | |
673 | * If there is a discrepancy between ret and the \ | |
674 | * content of revents (e.g. caused by userspace corrupting \ | |
675 | * the array from a concurrent thread), we have to output \ | |
676 | * zeros to keep the trace readable. \ | |
677 | */ \ | |
678 | for (i = nr; i < tp_locvar->fds_length; i++) { \ | |
679 | ctf_integer_type(int, 0) \ | |
680 | ctf_integer_type(short, 0) \ | |
681 | ctf_integer_bitfield_type(uint8_t, 0) \ | |
682 | } \ | |
683 | ) \ | |
684 | ) \ | |
685 | ) | |
686 | ||
687 | #define LTTNG_SYSCALL_POLL_code_post \ | |
ec85ce1d | 688 | lttng_tp_mempool_free(tp_locvar->fds); |
6a2ecd2e | 689 | |
a6370148 | 690 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
6a2ecd2e JD |
691 | #define OVERRIDE_32_poll |
692 | #define OVERRIDE_64_poll | |
693 | SC_LTTNG_TRACEPOINT_EVENT_CODE(poll, | |
694 | TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds, | |
695 | unsigned int nfds, int timeout_msecs), | |
696 | TP_ARGS(sc_exit(ret,) ufds, nfds, timeout_msecs), | |
697 | TP_locvar( | |
698 | LTTNG_SYSCALL_POLL_locvar | |
699 | ), | |
700 | TP_code_pre( | |
701 | LTTNG_SYSCALL_POLL_code_pre | |
702 | ), | |
703 | TP_FIELDS( | |
704 | sc_exit(ctf_integer(long, ret, ret)) | |
705 | sc_in(ctf_integer(int, timeout_msecs, timeout_msecs)) | |
706 | sc_inout(ctf_integer(unsigned int, nfds, nfds)) | |
707 | sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
708 | sc_in(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
709 | LTTNG_SYSCALL_POLL_fds_field | |
710 | ), | |
711 | TP_code_post( | |
712 | LTTNG_SYSCALL_POLL_code_post | |
713 | ) | |
714 | ) | |
639655f9 | 715 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
6a2ecd2e JD |
716 | |
717 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
718 | #define OVERRIDE_32_ppoll | |
719 | #define OVERRIDE_64_ppoll | |
720 | SC_LTTNG_TRACEPOINT_EVENT_CODE(ppoll, | |
721 | TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds, | |
722 | unsigned int nfds, struct timespec * tsp, const sigset_t * sigmask, size_t sigsetsize), | |
723 | TP_ARGS(sc_exit(ret,) ufds, nfds, tsp, sigmask, sigsetsize), | |
724 | TP_locvar( | |
725 | LTTNG_SYSCALL_POLL_locvar | |
726 | ), | |
727 | TP_code_pre( | |
728 | LTTNG_SYSCALL_POLL_code_pre | |
729 | ), | |
730 | TP_FIELDS( | |
731 | sc_exit(ctf_integer(long, ret, ret)) | |
732 | sc_in(ctf_integer(struct timespec *, tsp, tsp)) | |
733 | sc_in(ctf_integer(const sigset_t *, sigmask, sigmask)) | |
734 | sc_in(ctf_integer(size_t, sigsetsize, sigsetsize)) | |
735 | sc_inout(ctf_integer(unsigned int, nfds, nfds)) | |
736 | sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
737 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
738 | LTTNG_SYSCALL_POLL_fds_field | |
739 | ), | |
740 | TP_code_post( | |
741 | LTTNG_SYSCALL_POLL_code_post | |
742 | ) | |
743 | ) | |
744 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
745 | ||
45e0ded1 JD |
746 | #include <linux/eventpoll.h> |
747 | ||
748 | SC_LTTNG_TRACEPOINT_ENUM(lttng_epoll_op, | |
749 | TP_ENUM_VALUES( | |
750 | ctf_enum_value("EPOLL_CTL_ADD", EPOLL_CTL_ADD) | |
751 | ctf_enum_value("EPOLL_CTL_DEL", EPOLL_CTL_DEL) | |
752 | ctf_enum_value("EPOLL_CTL_MOD", EPOLL_CTL_MOD) | |
753 | ) | |
754 | ) | |
755 | ||
756 | #ifndef ONCE_LTTNG_TRACE_EPOLL_CTL_H | |
757 | #define ONCE_LTTNG_TRACE_EPOLL_CTL_H | |
758 | ||
759 | #define LTTNG_EPOLL_NRFLAGS (POLLHUP + 1) | |
760 | #define EPOLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \ | |
761 | ilog2(LTTNG_EPOLL_NRFLAGS - 1) | |
762 | ||
763 | /* | |
764 | * Only extract the values specified by iBCS2 for now. | |
765 | */ | |
766 | static struct lttng_event_field lttng_epoll_ctl_events_fields[] = { | |
767 | /* 0x0001 */ | |
768 | [ilog2(POLLIN)] = { | |
769 | .name = "EPOLLIN", | |
770 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
771 | }, | |
772 | /* 0x0002 */ | |
773 | [ilog2(POLLPRI)] = { | |
774 | .name = "EPOLLPRI", | |
775 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
776 | }, | |
777 | /* 0x0004 */ | |
778 | [ilog2(POLLOUT)] = { | |
779 | .name = "EPOLLOUT", | |
780 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
781 | }, | |
782 | /* 0x0008 */ | |
783 | [ilog2(POLLERR)] = { | |
784 | .name = "EPOLLERR", | |
785 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
786 | }, | |
787 | /* 0x0010 */ | |
788 | [ilog2(POLLHUP)] = { | |
789 | .name = "EPOLLHUP", | |
790 | .type = __type_integer(int, 1, 1, 0, __LITTLE_ENDIAN, 10, none), | |
791 | }, | |
792 | [ilog2(LTTNG_EPOLL_NRFLAGS)] = { | |
793 | .name = "padding", | |
794 | .type = __type_integer(int, EPOLL_FLAGS_PADDING_SIZE, 1, 0, | |
795 | __LITTLE_ENDIAN, 10, none), | |
796 | }, | |
797 | ||
798 | }; | |
799 | ||
800 | static struct lttng_event_field lttng_epoll_data_fields[] = { | |
801 | [0] = { | |
802 | .name = "u64", | |
803 | .type = __type_integer(uint64_t, 0, 0, 0, __BYTE_ORDER, 16, none), | |
804 | }, | |
805 | [1] = { | |
806 | .name = "fd", | |
807 | .type = __type_integer(int, 0, 0, 0, __BYTE_ORDER, 10, none), | |
808 | }, | |
809 | }; | |
810 | ||
811 | static struct lttng_event_field epoll_ctl_fields[] = { | |
812 | [0] = { | |
813 | .name = "data_union", | |
814 | .type = { | |
ceabb767 MD |
815 | .atype = atype_struct_nestable, |
816 | .u.struct_nestable.nr_fields = ARRAY_SIZE(lttng_epoll_data_fields), | |
817 | .u.struct_nestable.fields = lttng_epoll_data_fields, | |
818 | .u.struct_nestable.alignment = 0, | |
45e0ded1 JD |
819 | } |
820 | }, | |
821 | [1] = { | |
822 | .name = "raw_events", | |
823 | .type = __type_integer(uint32_t, 0, 0, 0, __BYTE_ORDER, 16, none), | |
824 | }, | |
825 | [2] = { | |
826 | .name = "events", | |
827 | .type = { | |
ceabb767 MD |
828 | .atype = atype_struct_nestable, |
829 | .u.struct_nestable.nr_fields = ARRAY_SIZE(lttng_epoll_ctl_events_fields), | |
830 | .u.struct_nestable.fields = lttng_epoll_ctl_events_fields, | |
831 | .u.struct_nestable.alignment = 0, | |
45e0ded1 JD |
832 | } |
833 | }, | |
834 | }; | |
835 | #endif /* ONCE_LTTNG_TRACE_EPOLL_CTL_H */ | |
836 | ||
837 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
838 | #define OVERRIDE_32_epoll_ctl | |
839 | #define OVERRIDE_64_epoll_ctl | |
840 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_ctl, | |
841 | TP_PROTO(sc_exit(long ret,) int epfd, int op, int fd, | |
842 | struct epoll_event __user * uevent), | |
843 | TP_ARGS(sc_exit(ret,) epfd, op, fd, uevent), | |
844 | TP_locvar( | |
845 | struct epoll_event event; | |
846 | int err; | |
847 | ), | |
848 | TP_code_pre( | |
849 | tp_locvar->err = lib_ring_buffer_copy_from_user_check_nofault( | |
850 | &tp_locvar->event, uevent, sizeof(struct epoll_event)); | |
851 | ), | |
852 | TP_FIELDS( | |
853 | sc_exit(ctf_integer(long, ret, ret)) | |
854 | sc_in(ctf_integer(int, epfd, epfd)) | |
855 | sc_in(ctf_enum(lttng_epoll_op, int, op_enum, op)) | |
856 | sc_in(ctf_integer(int, fd, fd)) | |
857 | sc_in( | |
858 | ctf_custom_field( | |
859 | ctf_custom_type( | |
ceabb767 MD |
860 | { |
861 | .atype = atype_struct_nestable, | |
862 | .u.struct_nestable.nr_fields = ARRAY_SIZE(epoll_ctl_fields), | |
863 | .u.struct_nestable.fields = epoll_ctl_fields, | |
864 | .u.struct_nestable.alignment = 0, | |
865 | } | |
45e0ded1 JD |
866 | ), |
867 | event, | |
868 | ctf_custom_code( | |
869 | ctf_align(uint64_t) | |
870 | if (!tp_locvar->err) { | |
871 | ctf_integer_type(uint64_t, tp_locvar->event.data) | |
872 | ctf_integer_type(int, tp_locvar->event.data) | |
873 | ctf_integer_bitfield_type(uint32_t, | |
874 | tp_locvar->event.events) | |
875 | ctf_integer_bitfield_type(uint8_t, | |
876 | (uint8_t) tp_locvar->event.events) | |
877 | } else { | |
878 | ctf_integer_type(uint64_t, 0) | |
879 | ctf_integer_type(int, 0) | |
880 | ctf_integer_bitfield_type(uint32_t, 0) | |
881 | ctf_integer_bitfield_type(uint8_t, 0) | |
882 | } | |
883 | ) | |
884 | ) | |
885 | ) | |
886 | ), | |
887 | TP_code_post() | |
888 | ) | |
889 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
890 | ||
f22697ca JD |
891 | #ifndef ONCE_LTTNG_TRACE_EPOLL_H |
892 | #define ONCE_LTTNG_TRACE_EPOLL_H | |
893 | ||
894 | static struct lttng_event_field lttng_epoll_wait_fields[] = { | |
895 | [0] = { | |
896 | .name = "data_union", | |
897 | .type = { | |
ceabb767 MD |
898 | .atype = atype_struct_nestable, |
899 | .u.struct_nestable.nr_fields = ARRAY_SIZE(lttng_epoll_data_fields), | |
900 | .u.struct_nestable.fields = lttng_epoll_data_fields, | |
901 | .u.struct_nestable.alignment = 0, | |
f22697ca JD |
902 | } |
903 | }, | |
904 | [1] = { | |
905 | .name = "raw_events", | |
906 | .type = __type_integer(uint32_t, 0, 0, 0, __BYTE_ORDER, 16, none), | |
907 | }, | |
908 | [2] = { | |
909 | .name = "events", | |
910 | .type = { | |
ceabb767 MD |
911 | .atype = atype_struct_nestable, |
912 | .u.struct_nestable.nr_fields = ARRAY_SIZE(lttng_epoll_ctl_events_fields), | |
913 | .u.struct_nestable.fields = lttng_epoll_ctl_events_fields, | |
914 | .u.struct_nestable.alignment = 0, | |
f22697ca JD |
915 | } |
916 | }, | |
917 | }; | |
918 | ||
919 | static struct lttng_type lttng_epoll_wait_elem = { | |
ceabb767 MD |
920 | .atype = atype_struct_nestable, |
921 | .u.struct_nestable.nr_fields = ARRAY_SIZE(lttng_epoll_wait_fields), | |
922 | .u.struct_nestable.fields = lttng_epoll_wait_fields, | |
923 | .u.struct_nestable.alignment = 0, | |
f22697ca JD |
924 | }; |
925 | ||
926 | #endif /* ONCE_LTTNG_TRACE_EPOLL_H */ | |
927 | ||
928 | #define LTTNG_SYSCALL_EPOLL_WAIT_locvar \ | |
929 | sc_out( \ | |
930 | unsigned int fds_length; \ | |
931 | uint8_t overflow; \ | |
932 | struct epoll_event *events; \ | |
933 | ) | |
934 | ||
935 | #define LTTNG_SYSCALL_EPOLL_WAIT_code_pre \ | |
936 | BUILD_BUG_ON(((ARRAY_SIZE(lttng_epoll_ctl_events_fields) - 1) + \ | |
937 | EPOLL_FLAGS_PADDING_SIZE) != \ | |
938 | sizeof(uint8_t) * BITS_PER_BYTE); \ | |
939 | sc_out({ \ | |
940 | int err; \ | |
941 | unsigned long maxalloc; \ | |
942 | \ | |
943 | tp_locvar->fds_length = 0; \ | |
944 | tp_locvar->events = NULL; \ | |
945 | tp_locvar->overflow = 0; \ | |
946 | \ | |
947 | if (maxevents <= 0 || ret <= 0 || ret > maxevents) \ | |
948 | goto skip_code; \ | |
949 | \ | |
950 | if (maxevents > PAGE_SIZE / sizeof(struct epoll_event)) { \ | |
951 | maxalloc = PAGE_SIZE / sizeof(struct epoll_event); \ | |
952 | } else { \ | |
953 | maxalloc = maxevents; \ | |
954 | } \ | |
955 | \ | |
956 | if (ret > maxalloc) { \ | |
957 | tp_locvar->fds_length = maxalloc; \ | |
958 | tp_locvar->overflow = 1; \ | |
959 | } else { \ | |
960 | tp_locvar->fds_length = ret; \ | |
961 | } \ | |
962 | \ | |
ec85ce1d JD |
963 | tp_locvar->events = lttng_tp_mempool_alloc( \ |
964 | maxalloc * sizeof(struct epoll_event)); \ | |
f22697ca JD |
965 | if (!tp_locvar->events) { \ |
966 | tp_locvar->fds_length = 0; \ | |
967 | goto skip_code; \ | |
968 | } \ | |
969 | \ | |
970 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
971 | tp_locvar->events, uevents, \ | |
41a3cca2 | 972 | maxalloc * sizeof(struct epoll_event)); \ |
f22697ca JD |
973 | if (err != 0) \ |
974 | tp_locvar->fds_length = 0; \ | |
975 | } \ | |
976 | skip_code: \ | |
977 | ) | |
978 | ||
979 | #define LTTNG_SYSCALL_EPOLL_WAIT_fds_field \ | |
980 | ctf_custom_field( \ | |
981 | ctf_custom_type( \ | |
ceabb767 MD |
982 | { \ |
983 | .atype = atype_sequence_nestable, \ | |
984 | .u.sequence_nestable.length_name = \ | |
985 | "fds_length", \ | |
986 | .u.sequence_nestable.elem_type = \ | |
987 | <tng_epoll_wait_elem, \ | |
988 | } \ | |
f22697ca JD |
989 | ), \ |
990 | fds, \ | |
991 | ctf_custom_code( \ | |
992 | uint32_t i; \ | |
993 | \ | |
994 | ctf_align(uint64_t) \ | |
995 | for (i = 0; i < tp_locvar->fds_length; i++) { \ | |
996 | ctf_integer_type(uint64_t, tp_locvar->events[i].data) \ | |
997 | ctf_integer_type(int, tp_locvar->events[i].data) \ | |
998 | ctf_integer_bitfield_type(uint32_t, \ | |
999 | tp_locvar->events[i].events) \ | |
1000 | ctf_integer_bitfield_type(uint8_t, \ | |
1001 | (uint8_t) tp_locvar->events[i].events) \ | |
1002 | } \ | |
1003 | ) \ | |
1004 | ) | |
1005 | ||
1006 | #define LTTNG_SYSCALL_EPOLL_WAIT_code_post \ | |
1007 | sc_out( \ | |
ec85ce1d | 1008 | lttng_tp_mempool_free(tp_locvar->events); \ |
f22697ca JD |
1009 | ) |
1010 | ||
1011 | ||
a6370148 | 1012 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
f22697ca JD |
1013 | #define OVERRIDE_32_epoll_wait |
1014 | #define OVERRIDE_64_epoll_wait | |
1015 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_wait, | |
1016 | TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents, | |
1017 | int maxevents, int timeout), | |
1018 | TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout), | |
1019 | TP_locvar( | |
1020 | LTTNG_SYSCALL_EPOLL_WAIT_locvar | |
1021 | ), | |
1022 | TP_code_pre( | |
1023 | LTTNG_SYSCALL_EPOLL_WAIT_code_pre | |
1024 | ), | |
1025 | TP_FIELDS( | |
1026 | sc_exit(ctf_integer(long, ret, ret)) | |
1027 | sc_in(ctf_integer(int, epfd, epfd)) | |
1028 | sc_in(ctf_integer(int, maxevents, maxevents)) | |
1029 | sc_in(ctf_integer(int, timeout, timeout)) | |
1030 | sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
1031 | sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
1032 | sc_out( | |
1033 | LTTNG_SYSCALL_EPOLL_WAIT_fds_field | |
1034 | ) | |
1035 | ), | |
1036 | TP_code_post( | |
1037 | LTTNG_SYSCALL_EPOLL_WAIT_code_post | |
1038 | ) | |
1039 | ) | |
639655f9 | 1040 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
f22697ca JD |
1041 | |
1042 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
1043 | #define OVERRIDE_32_epoll_pwait | |
1044 | #define OVERRIDE_64_epoll_pwait | |
1045 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_pwait, | |
1046 | TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents, | |
1047 | int maxevents, int timeout, const sigset_t __user * sigmask, size_t sigsetsize), | |
1048 | TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout, sigmask, sigsetsize), | |
1049 | TP_locvar( | |
1050 | LTTNG_SYSCALL_EPOLL_WAIT_locvar | |
1051 | ), | |
1052 | TP_code_pre( | |
1053 | LTTNG_SYSCALL_EPOLL_WAIT_code_pre | |
1054 | ), | |
1055 | TP_FIELDS( | |
1056 | sc_exit(ctf_integer(long, ret, ret)) | |
1057 | sc_in(ctf_integer(int, epfd, epfd)) | |
1058 | sc_in(ctf_integer(int, maxevents, maxevents)) | |
1059 | sc_in(ctf_integer(int, timeout, timeout)) | |
1060 | sc_in(ctf_integer_hex(const sigset_t *, sigmask, sigmask)) | |
1061 | sc_in(ctf_integer(size_t, sigsetsize, sigsetsize)) | |
1062 | sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
1063 | sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
1064 | sc_out( | |
1065 | LTTNG_SYSCALL_EPOLL_WAIT_fds_field | |
1066 | ) | |
1067 | ), | |
1068 | TP_code_post( | |
1069 | LTTNG_SYSCALL_EPOLL_WAIT_code_post | |
1070 | ) | |
1071 | ) | |
1072 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
1073 | ||
771af27e JW |
1074 | #if (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) |
1075 | #define OVERRIDE_32_socketpair | |
1076 | #define OVERRIDE_64_socketpair | |
1077 | SC_LTTNG_TRACEPOINT_EVENT(socketpair, | |
1078 | TP_PROTO(sc_exit(long ret,) int family, int type, int protocol, int *usockvec), | |
1079 | TP_ARGS(sc_exit(ret,) family, type, protocol, usockvec), | |
1080 | TP_FIELDS( | |
1081 | sc_exit(ctf_integer(long, ret, ret)) | |
1082 | sc_in(ctf_integer(int, family, family)) | |
1083 | sc_in(ctf_integer(int, type, type)) | |
1084 | sc_in(ctf_integer(int, protocol, protocol)) | |
1085 | sc_out(ctf_user_array(int, socket, usockvec, 2)) | |
1086 | ) | |
1087 | ) | |
1088 | #endif /* (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
1089 | ||
c8dfb724 GB |
1090 | /* |
1091 | * Enumeration of the open flags, as described in the 'open' | |
1092 | * system call man page. | |
1093 | */ | |
1094 | SC_LTTNG_TRACEPOINT_ENUM(lttng_file_status_flags, | |
1095 | TP_ENUM_VALUES( | |
1096 | ctf_enum_value("O_RDONLY", O_RDONLY) | |
1097 | ctf_enum_value("O_WRONLY", O_WRONLY) | |
1098 | ctf_enum_value("O_RDWR", O_RDWR) | |
1099 | ctf_enum_value("O_CREAT", O_CREAT) | |
1100 | ctf_enum_value("O_EXCL", O_EXCL) | |
1101 | ctf_enum_value("O_NOCTTY", O_NOCTTY) | |
1102 | ctf_enum_value("O_TRUNC", O_TRUNC) | |
1103 | ctf_enum_value("O_APPEND", O_APPEND) | |
1104 | ctf_enum_value("O_NONBLOCK", O_NONBLOCK) | |
1105 | ctf_enum_value("O_DSYNC", O_DSYNC) | |
1106 | ctf_enum_value("FASYNC", FASYNC) | |
1107 | ctf_enum_value("O_DIRECT", O_DIRECT) | |
1108 | ctf_enum_value("O_LARGEFILE", O_LARGEFILE) | |
1109 | ctf_enum_value("O_DIRECTORY", O_DIRECTORY) | |
1110 | ctf_enum_value("O_NOFOLLOW", O_NOFOLLOW) | |
1111 | ctf_enum_value("O_NOATIME", O_NOATIME) | |
1112 | ctf_enum_value("O_CLOEXEC", O_CLOEXEC) | |
1113 | ctf_enum_value("O_SYNC", __O_SYNC) | |
1114 | ctf_enum_value("O_PATH", O_PATH) | |
1115 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) | |
1116 | ctf_enum_value("O_TMPFILE", __O_TMPFILE) | |
1117 | #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)) */ | |
1118 | ) | |
1119 | ) | |
1120 | ||
1121 | /* | |
1122 | * Enumeration of the open flags, as described in the 'open' | |
1123 | * system call man page. | |
1124 | */ | |
1125 | SC_LTTNG_TRACEPOINT_ENUM(lttng_file_mode, | |
1126 | TP_ENUM_VALUES( | |
1127 | ctf_enum_value("S_IRWXU", S_IRWXU) | |
1128 | ctf_enum_value("S_IRUSR", S_IRUSR) | |
1129 | ctf_enum_value("S_IWUSR", S_IWUSR) | |
1130 | ctf_enum_value("S_IXUSR", S_IXUSR) | |
1131 | ctf_enum_value("S_IRWXG", S_IRWXG) | |
1132 | ctf_enum_value("S_IRGRP", S_IRGRP) | |
1133 | ctf_enum_value("S_IWGRP", S_IWGRP) | |
1134 | ctf_enum_value("S_IXGRP", S_IXGRP) | |
1135 | ctf_enum_value("S_IRWXO", S_IRWXO) | |
1136 | ctf_enum_value("S_IROTH", S_IROTH) | |
1137 | ctf_enum_value("S_IWOTH", S_IWOTH) | |
1138 | ctf_enum_value("S_IXOTH", S_IXOTH) | |
1139 | ctf_enum_value("S_ISUID", S_ISUID) | |
1140 | ctf_enum_value("S_ISGID", S_ISGID) | |
1141 | ctf_enum_value("S_ISVTX", S_ISVTX) | |
1142 | ) | |
1143 | ) | |
1144 | ||
1145 | #define OVERRIDE_32_openat | |
1146 | #define OVERRIDE_64_openat | |
1147 | SC_LTTNG_TRACEPOINT_EVENT(openat, | |
1148 | TP_PROTO(sc_exit(long ret,) int dfd, const char * filename, int flags, umode_t mode), | |
1149 | TP_ARGS(sc_exit(ret,) dfd, filename, flags, mode), | |
1150 | TP_FIELDS( | |
1151 | sc_exit(ctf_integer(long, ret, ret)) | |
1152 | sc_in(ctf_integer(int, dfd, dfd)) | |
1153 | sc_in(ctf_user_string(filename, filename)) | |
1154 | sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) | |
1155 | sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) | |
1156 | ) | |
1157 | ) | |
1158 | ||
1159 | #define OVERRIDE_32_open | |
1160 | #define OVERRIDE_64_open | |
1161 | SC_LTTNG_TRACEPOINT_EVENT(open, | |
1162 | TP_PROTO(sc_exit(long ret,) const char * filename, int flags, umode_t mode), | |
1163 | TP_ARGS(sc_exit(ret,) filename, flags, mode), | |
1164 | TP_FIELDS( | |
1165 | sc_exit(ctf_integer(long, ret, ret)) | |
1166 | sc_in(ctf_user_string(filename, filename)) | |
1167 | sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) | |
1168 | sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) | |
1169 | ) | |
1170 | ) | |
1171 | ||
e42e81fd | 1172 | #endif /* CREATE_SYSCALL_TABLE */ |