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)) | |
5f4c791e | 87 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,5,0)) |
d775625e | 88 | ctf_enum_value("CLONE_CLEAR_SIGHAND", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CLEAR_SIGHAND)) |
5f4c791e | 89 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,5,0)) */ |
d775625e GB |
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)) | |
5f4c791e | 94 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) |
d775625e | 95 | ctf_enum_value("CLONE_NEWCGROUP", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWCGROUP)) |
5f4c791e | 96 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) */ |
d775625e GB |
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)) | |
5f4c791e | 105 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,2,0)) |
d775625e | 106 | ctf_enum_value("CLONE_PIDFD", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PIDFD)) |
5f4c791e | 107 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,2,0)) */ |
d775625e GB |
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 \ | |
437d5aa5 MD |
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) | |
d775625e GB |
125 | |
126 | #define LTTNG_CLONE_FLAGS_OPTIONS \ | |
437d5aa5 MD |
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) | |
d775625e GB |
133 | |
134 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
135 | #define LTTNG_CLONE_FLAGS \ | |
437d5aa5 | 136 | lttng_kernel_static_event_field_array( \ |
d775625e | 137 | [0] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, \ |
437d5aa5 MD |
138 | [1] = LTTNG_CLONE_FLAGS_OPTIONS, \ |
139 | ) | |
d775625e GB |
140 | #else |
141 | #define LTTNG_CLONE_FLAGS \ | |
437d5aa5 | 142 | lttng_kernel_static_event_field_array( \ |
d775625e | 143 | [0] = LTTNG_CLONE_FLAGS_OPTIONS, \ |
437d5aa5 MD |
144 | [1] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, \ |
145 | ) | |
d775625e GB |
146 | #endif |
147 | ||
148 | ||
769ad370 MD |
149 | #define OVERRIDE_32_clone |
150 | #define OVERRIDE_64_clone | |
cb3ef14c | 151 | SC_LTTNG_TRACEPOINT_EVENT(clone, |
e17f92ba | 152 | TP_PROTO(sc_exit(long ret,) unsigned long clone_flags, unsigned long newsp, |
ba21566b | 153 | void __user *parent_tid, |
b5aa4b6a | 154 | void __user *child_tid), |
e17f92ba | 155 | TP_ARGS(sc_exit(ret,) clone_flags, newsp, parent_tid, child_tid), |
57ede728 MD |
156 | TP_FIELDS( |
157 | sc_exit(ctf_integer(long, ret, ret)) | |
d775625e GB |
158 | sc_in( |
159 | ctf_custom_field( | |
160 | ctf_custom_type( | |
437d5aa5 | 161 | lttng_kernel_static_type_struct(2, LTTNG_CLONE_FLAGS, lttng_alignof(unsigned long) * CHAR_BIT) |
d775625e GB |
162 | ), |
163 | flags, | |
164 | ctf_custom_code( | |
d1f63533 | 165 | ctf_integer_type(unsigned long, clone_flags) |
d775625e GB |
166 | ) |
167 | ) | |
168 | ) | |
57ede728 MD |
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 | ) | |
ba21566b MD |
173 | ) |
174 | ||
b5aa4b6a | 175 | /* present in 32, missing in 64 due to old kernel headers */ |
644d6e9c MD |
176 | #define OVERRIDE_32_getcpu |
177 | #define OVERRIDE_64_getcpu | |
cb3ef14c | 178 | SC_LTTNG_TRACEPOINT_EVENT(getcpu, |
e17f92ba MD |
179 | TP_PROTO(sc_exit(long ret,) unsigned __user *cpup, unsigned __user *nodep, void *tcache), |
180 | TP_ARGS(sc_exit(ret,) cpup, nodep, tcache), | |
57ede728 MD |
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 | ) | |
b5aa4b6a MD |
187 | ) |
188 | ||
af44bd3a MD |
189 | #define OVERRIDE_32_pipe2 |
190 | #define OVERRIDE_64_pipe2 | |
cb3ef14c | 191 | SC_LTTNG_TRACEPOINT_EVENT(pipe2, |
af44bd3a MD |
192 | TP_PROTO(sc_exit(long ret,) int * fildes, int flags), |
193 | TP_ARGS(sc_exit(ret,) fildes, flags), | |
57ede728 MD |
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 | ) | |
af44bd3a MD |
198 | ) |
199 | ||
29751f7c JD |
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) { \ | |
ec85ce1d JD |
247 | tp_locvar->fds_in = lttng_tp_mempool_alloc( \ |
248 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
29751f7c JD |
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) { \ | |
ec85ce1d JD |
259 | tp_locvar->fds_out = lttng_tp_mempool_alloc( \ |
260 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
29751f7c JD |
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) { \ | |
ec85ce1d JD |
271 | tp_locvar->fds_ex = lttng_tp_mempool_alloc( \ |
272 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
29751f7c JD |
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( \ | |
437d5aa5 | 294 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 10) \ |
29751f7c | 295 | ), \ |
ceabb767 | 296 | _ ## name ## _length, \ |
29751f7c | 297 | ctf_custom_code( \ |
29751f7c JD |
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) \ | |
29751f7c | 304 | } \ |
ceabb767 MD |
305 | ) \ |
306 | ) \ | |
307 | ctf_custom_field( \ | |
308 | ctf_custom_type( \ | |
51ef4536 | 309 | lttng_kernel_static_type_sequence(NULL, \ |
437d5aa5 MD |
310 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 16), \ |
311 | 0, \ | |
312 | none) \ | |
ceabb767 MD |
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; \ | |
29751f7c JD |
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( \ | |
437d5aa5 | 339 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 10) \ |
29751f7c | 340 | ), \ |
ceabb767 | 341 | _ ## name ## _length, \ |
29751f7c | 342 | ctf_custom_code( \ |
29751f7c JD |
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) \ | |
29751f7c | 349 | } \ |
ceabb767 MD |
350 | ) \ |
351 | ) \ | |
352 | ctf_custom_field( \ | |
353 | ctf_custom_type( \ | |
51ef4536 | 354 | lttng_kernel_static_type_sequence(NULL, \ |
437d5aa5 MD |
355 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 16), \ |
356 | 0, \ | |
357 | none) \ | |
ceabb767 MD |
358 | ), \ |
359 | name, \ | |
360 | ctf_custom_code( \ | |
361 | unsigned int src, nr_bytes_out = 0; \ | |
362 | \ | |
363 | if (!input) \ | |
364 | goto skip_##name; \ | |
29751f7c JD |
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 \ | |
ec85ce1d JD |
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); | |
29751f7c | 384 | |
a6370148 | 385 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
29751f7c JD |
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 | ) | |
639655f9 | 420 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
29751f7c JD |
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 | ||
6a2ecd2e JD |
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 | */ | |
437d5aa5 MD |
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), | |
6a2ecd2e JD |
492 | }; |
493 | ||
437d5aa5 MD |
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), | |
6a2ecd2e JD |
503 | }; |
504 | ||
6a2ecd2e JD |
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 | \ | |
ec85ce1d | 552 | tp_locvar->fds = lttng_tp_mempool_alloc(tp_locvar->alloc_fds); \ |
6a2ecd2e JD |
553 | if (!tp_locvar->fds) \ |
554 | goto error; \ | |
555 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
41a3cca2 | 556 | tp_locvar->fds, ufds, tp_locvar->alloc_fds); \ |
6a2ecd2e JD |
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( \ | |
437d5aa5 MD |
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) \ | |
6a2ecd2e JD |
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( \ | |
437d5aa5 MD |
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) \ | |
6a2ecd2e JD |
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 \ | |
ec85ce1d | 634 | lttng_tp_mempool_free(tp_locvar->fds); |
6a2ecd2e | 635 | |
a6370148 | 636 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
6a2ecd2e JD |
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 | ) | |
639655f9 | 661 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
6a2ecd2e JD |
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 | ||
45e0ded1 JD |
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 | */ | |
437d5aa5 | 712 | static const struct lttng_kernel_event_field *lttng_epoll_ctl_events_fields[] = { |
45e0ded1 | 713 | /* 0x0001 */ |
437d5aa5 MD |
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), | |
45e0ded1 | 717 | /* 0x0002 */ |
437d5aa5 MD |
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), | |
45e0ded1 | 721 | /* 0x0004 */ |
437d5aa5 MD |
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), | |
45e0ded1 | 725 | /* 0x0008 */ |
437d5aa5 MD |
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), | |
45e0ded1 | 729 | /* 0x0010 */ |
437d5aa5 MD |
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), | |
45e0ded1 JD |
736 | }; |
737 | ||
437d5aa5 MD |
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), | |
45e0ded1 JD |
745 | }; |
746 | ||
437d5aa5 MD |
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), | |
45e0ded1 JD |
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( | |
437d5aa5 | 787 | lttng_kernel_static_type_struct(ARRAY_SIZE(epoll_ctl_fields), epoll_ctl_fields, 0) |
45e0ded1 JD |
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 | ||
f22697ca JD |
813 | #ifndef ONCE_LTTNG_TRACE_EPOLL_H |
814 | #define ONCE_LTTNG_TRACE_EPOLL_H | |
815 | ||
437d5aa5 MD |
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 | ); | |
f22697ca JD |
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 | \ | |
437d5aa5 | 864 | tp_locvar->events = lttng_tp_mempool_alloc( \ |
ec85ce1d | 865 | maxalloc * sizeof(struct epoll_event)); \ |
f22697ca JD |
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, \ | |
41a3cca2 | 873 | maxalloc * sizeof(struct epoll_event)); \ |
f22697ca JD |
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( \ | |
437d5aa5 MD |
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) \ | |
f22697ca JD |
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( \ | |
ec85ce1d | 906 | lttng_tp_mempool_free(tp_locvar->events); \ |
f22697ca JD |
907 | ) |
908 | ||
909 | ||
a6370148 | 910 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
f22697ca JD |
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 | ) | |
639655f9 | 938 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
f22697ca JD |
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 | ||
771af27e JW |
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 | ||
c8dfb724 GB |
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) | |
5f4c791e | 1013 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0)) |
c8dfb724 | 1014 | ctf_enum_value("O_TMPFILE", __O_TMPFILE) |
5f4c791e | 1015 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0)) */ |
c8dfb724 GB |
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 | ||
e42e81fd | 1070 | #endif /* CREATE_SYSCALL_TABLE */ |