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 | ||
f56826ae MJ |
17 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
18 | ||
d775625e GB |
19 | /* |
20 | * Clone()'s `flags` field has two parts: | |
21 | * 1. exit signal: the least significant byte of the `unsigned long` is | |
22 | * the signal the kernel must send to the parent process on child | |
23 | * exit, | |
24 | * 2. clone options: the remaining bytes of the `unsigned long` is used a | |
25 | * bitwise flag for the clone options. | |
26 | */ | |
27 | #define CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS 8 | |
28 | #define LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(x) ((x) >> CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS) | |
29 | ||
30 | SC_LTTNG_TRACEPOINT_ENUM(lttng_clone_exit_signal_flags, | |
31 | TP_ENUM_VALUES( | |
32 | ctf_enum_value("SIGHUP", SIGHUP) | |
33 | ctf_enum_value("SIGINT", SIGINT) | |
34 | ctf_enum_value("SIGQUIT", SIGQUIT) | |
35 | ctf_enum_value("SIGILL", SIGILL) | |
36 | ctf_enum_value("SIGTRAP", SIGTRAP) | |
37 | ctf_enum_value("SIGABRT", SIGABRT) | |
38 | ctf_enum_value("SIGIOT", SIGIOT) | |
39 | ctf_enum_value("SIGBUS", SIGBUS) | |
40 | #ifdef SIGEMT | |
41 | ctf_enum_value("SIGEMT", SIGEMT) | |
42 | #endif /* #ifdef SIGEMT */ | |
43 | ctf_enum_value("SIGFPE", SIGFPE) | |
44 | ctf_enum_value("SIGKILL", SIGKILL) | |
45 | ctf_enum_value("SIGUSR1", SIGUSR1) | |
46 | ctf_enum_value("SIGSEGV", SIGSEGV) | |
47 | ctf_enum_value("SIGUSR2", SIGUSR2) | |
48 | ctf_enum_value("SIGPIPE", SIGPIPE) | |
49 | ctf_enum_value("SIGALRM", SIGALRM) | |
50 | ctf_enum_value("SIGTERM", SIGTERM) | |
51 | #ifdef SIGSTKFLT | |
52 | ctf_enum_value("SIGSTKFLT", SIGSTKFLT) | |
53 | #endif /* #ifdef SIGSTKFLT */ | |
54 | ctf_enum_value("SIGCHLD", SIGCHLD) | |
55 | #ifdef SIGCLD | |
56 | ctf_enum_value("SIGCLD", SIGCLD) | |
57 | #endif /* #ifdef SIGCLD */ | |
58 | ctf_enum_value("SIGCONT", SIGCONT) | |
59 | ctf_enum_value("SIGSTOP", SIGSTOP) | |
60 | ctf_enum_value("SIGTSTP", SIGTSTP) | |
61 | ctf_enum_value("SIGTTIN", SIGTTIN) | |
62 | ctf_enum_value("SIGTTOU", SIGTTOU) | |
63 | ctf_enum_value("SIGURG", SIGURG) | |
64 | ctf_enum_value("SIGXCPU", SIGXCPU) | |
65 | ctf_enum_value("SIGXFSZ", SIGXFSZ) | |
66 | ctf_enum_value("SIGVTALR", SIGVTALRM) | |
67 | ctf_enum_value("SIGPROF", SIGPROF) | |
68 | ctf_enum_value("SIGWINCH", SIGWINCH) | |
69 | ctf_enum_value("SIGIO", SIGIO) | |
70 | ctf_enum_value("SIGPOLL", SIGPOLL) | |
71 | ctf_enum_value("SIGPWR", SIGPWR) | |
72 | #ifdef SIGINFO | |
73 | ctf_enum_value("SIGINFO", SIGINFO) | |
74 | #endif /* #ifdef SIGINFO */ | |
75 | #ifdef SIGLOST | |
76 | ctf_enum_value("SIGLOST", SIGLOST) | |
77 | #endif /* #ifdef SIGLOST */ | |
78 | ctf_enum_value("SIGSYS", SIGSYS) | |
79 | #ifdef SIGUNUSED | |
80 | ctf_enum_value("SIGUNUSED", SIGUNUSED) | |
81 | #endif /* #ifdef SIGUNUSED */ | |
82 | ) | |
83 | ) | |
84 | ||
85 | SC_LTTNG_TRACEPOINT_ENUM(lttng_clone_option_flags, | |
86 | TP_ENUM_VALUES( | |
87 | ctf_enum_value("CLONE_CHILD_CLEARTID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CHILD_CLEARTID)) | |
88 | ctf_enum_value("CLONE_CHILD_SETTID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CHILD_SETTID)) | |
5f4c791e | 89 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,5,0)) |
d775625e | 90 | ctf_enum_value("CLONE_CLEAR_SIGHAND", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CLEAR_SIGHAND)) |
5f4c791e | 91 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,5,0)) */ |
d775625e GB |
92 | ctf_enum_value("CLONE_DETACHED", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_DETACHED)) |
93 | ctf_enum_value("CLONE_FILES", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_FILES)) | |
94 | ctf_enum_value("CLONE_FS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_FS)) | |
95 | ctf_enum_value("CLONE_IO", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_IO)) | |
5f4c791e | 96 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) |
d775625e | 97 | ctf_enum_value("CLONE_NEWCGROUP", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWCGROUP)) |
5f4c791e | 98 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) */ |
d775625e GB |
99 | ctf_enum_value("CLONE_NEWIPC", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWIPC)) |
100 | ctf_enum_value("CLONE_NEWNET", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWNET)) | |
101 | ctf_enum_value("CLONE_NEWNS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWNS)) | |
102 | ctf_enum_value("CLONE_NEWPID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWPID)) | |
103 | ctf_enum_value("CLONE_NEWUSER", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWUSER)) | |
104 | ctf_enum_value("CLONE_NEWUTS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWUTS)) | |
105 | ctf_enum_value("CLONE_PARENT", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PARENT)) | |
106 | ctf_enum_value("CLONE_PARENT_SETTID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PARENT_SETTID)) | |
5f4c791e | 107 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,2,0)) |
d775625e | 108 | ctf_enum_value("CLONE_PIDFD", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PIDFD)) |
5f4c791e | 109 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,2,0)) */ |
d775625e GB |
110 | ctf_enum_value("CLONE_PTRACE", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PTRACE)) |
111 | ctf_enum_value("CLONE_SETTLS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_SETTLS)) | |
112 | ctf_enum_value("CLONE_SIGHAND", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_SIGHAND)) | |
113 | ctf_enum_value("CLONE_SYSVSEM", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_SYSVSEM)) | |
114 | ctf_enum_value("CLONE_THREAD", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_THREAD)) | |
115 | ctf_enum_value("CLONE_UNTRACED", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_UNTRACED)) | |
116 | ctf_enum_value("CLONE_VFORK", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_VFORK)) | |
117 | ctf_enum_value("CLONE_VM", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_VM)) | |
118 | ) | |
119 | ) | |
120 | ||
121 | #define LTTNG_CLONE_FLAGS_EXIT_SIGNAL \ | |
437d5aa5 MD |
122 | lttng_kernel_static_event_field("exit_signal", \ |
123 | lttng_kernel_static_type_enum(&__enum_lttng_clone_exit_signal_flags, \ | |
124 | lttng_kernel_static_type_integer(CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS, \ | |
125 | 1, 0, __BYTE_ORDER, 16)), \ | |
126 | false, false, false) | |
d775625e GB |
127 | |
128 | #define LTTNG_CLONE_FLAGS_OPTIONS \ | |
437d5aa5 MD |
129 | lttng_kernel_static_event_field("options", \ |
130 | lttng_kernel_static_type_enum(&__enum_lttng_clone_option_flags, \ | |
131 | lttng_kernel_static_type_integer( \ | |
132 | sizeof(unsigned long) * CHAR_BIT - CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS, \ | |
133 | 1, 0, __BYTE_ORDER, 16)), \ | |
134 | false, false, false) | |
d775625e GB |
135 | |
136 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
137 | #define LTTNG_CLONE_FLAGS \ | |
437d5aa5 | 138 | lttng_kernel_static_event_field_array( \ |
d775625e | 139 | [0] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, \ |
437d5aa5 MD |
140 | [1] = LTTNG_CLONE_FLAGS_OPTIONS, \ |
141 | ) | |
d775625e GB |
142 | #else |
143 | #define LTTNG_CLONE_FLAGS \ | |
437d5aa5 | 144 | lttng_kernel_static_event_field_array( \ |
d775625e | 145 | [0] = LTTNG_CLONE_FLAGS_OPTIONS, \ |
437d5aa5 MD |
146 | [1] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, \ |
147 | ) | |
d775625e GB |
148 | #endif |
149 | ||
f56826ae | 150 | #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */ |
d775625e | 151 | |
769ad370 MD |
152 | #define OVERRIDE_32_clone |
153 | #define OVERRIDE_64_clone | |
cb3ef14c | 154 | SC_LTTNG_TRACEPOINT_EVENT(clone, |
e17f92ba | 155 | TP_PROTO(sc_exit(long ret,) unsigned long clone_flags, unsigned long newsp, |
ba21566b | 156 | void __user *parent_tid, |
b5aa4b6a | 157 | void __user *child_tid), |
e17f92ba | 158 | TP_ARGS(sc_exit(ret,) clone_flags, newsp, parent_tid, child_tid), |
57ede728 MD |
159 | TP_FIELDS( |
160 | sc_exit(ctf_integer(long, ret, ret)) | |
d775625e | 161 | sc_in( |
f56826ae | 162 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
d775625e GB |
163 | ctf_custom_field( |
164 | ctf_custom_type( | |
437d5aa5 | 165 | lttng_kernel_static_type_struct(2, LTTNG_CLONE_FLAGS, lttng_alignof(unsigned long) * CHAR_BIT) |
d775625e GB |
166 | ), |
167 | flags, | |
168 | ctf_custom_code( | |
d1f63533 | 169 | ctf_integer_type(unsigned long, clone_flags) |
d775625e GB |
170 | ) |
171 | ) | |
f56826ae MJ |
172 | #else |
173 | ctf_integer_hex(unsigned long, flags, clone_flags) | |
174 | #endif | |
d775625e | 175 | ) |
57ede728 MD |
176 | sc_in(ctf_integer_hex(unsigned long, newsp, newsp)) |
177 | sc_in(ctf_integer_hex(void *, parent_tid, parent_tid)) | |
178 | sc_in(ctf_integer_hex(void *, child_tid, child_tid)) | |
179 | ) | |
ba21566b MD |
180 | ) |
181 | ||
b5aa4b6a | 182 | /* present in 32, missing in 64 due to old kernel headers */ |
644d6e9c MD |
183 | #define OVERRIDE_32_getcpu |
184 | #define OVERRIDE_64_getcpu | |
cb3ef14c | 185 | SC_LTTNG_TRACEPOINT_EVENT(getcpu, |
e17f92ba MD |
186 | TP_PROTO(sc_exit(long ret,) unsigned __user *cpup, unsigned __user *nodep, void *tcache), |
187 | TP_ARGS(sc_exit(ret,) cpup, nodep, tcache), | |
57ede728 MD |
188 | TP_FIELDS( |
189 | sc_exit(ctf_integer(long, ret, ret)) | |
190 | sc_out(ctf_integer_hex(unsigned *, cpup, cpup)) | |
191 | sc_out(ctf_integer_hex(unsigned *, nodep, nodep)) | |
192 | sc_inout(ctf_integer_hex(void *, tcache, tcache)) | |
193 | ) | |
b5aa4b6a MD |
194 | ) |
195 | ||
af44bd3a MD |
196 | #define OVERRIDE_32_pipe2 |
197 | #define OVERRIDE_64_pipe2 | |
cb3ef14c | 198 | SC_LTTNG_TRACEPOINT_EVENT(pipe2, |
af44bd3a MD |
199 | TP_PROTO(sc_exit(long ret,) int * fildes, int flags), |
200 | TP_ARGS(sc_exit(ret,) fildes, flags), | |
57ede728 MD |
201 | TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) |
202 | sc_out(ctf_user_array(int, fildes, fildes, 2)) | |
203 | sc_in(ctf_integer(int, flags, flags)) | |
204 | ) | |
af44bd3a MD |
205 | ) |
206 | ||
29751f7c JD |
207 | #define LTTNG_SYSCALL_SELECT_locvar \ |
208 | unsigned long *fds_in, *fds_out, *fds_ex; \ | |
209 | unsigned long nr_bytes, nr_ulong; \ | |
210 | uint8_t overflow; | |
211 | ||
212 | #define LTTNG_SYSCALL_SELECT_code_pre \ | |
213 | sc_inout( \ | |
214 | { \ | |
215 | int err; \ | |
216 | unsigned int n_in_bytes; \ | |
217 | \ | |
218 | tp_locvar->fds_in = NULL; \ | |
219 | tp_locvar->fds_out = NULL; \ | |
220 | tp_locvar->fds_ex = NULL; \ | |
221 | tp_locvar->overflow = 0; \ | |
222 | \ | |
223 | sc_out( \ | |
224 | if (ret <= 0) \ | |
225 | goto error; \ | |
226 | ) \ | |
227 | \ | |
228 | if (n <= 0) \ | |
229 | goto error; \ | |
230 | \ | |
231 | /* On error or bogus input, don't copy anything. */ \ | |
232 | if (n >__FD_SETSIZE) \ | |
233 | goto error; \ | |
234 | \ | |
235 | n_in_bytes = DIV_ROUND_UP((unsigned int) n, BITS_PER_BYTE); \ | |
236 | \ | |
237 | /* \ | |
238 | * Limit atomic memory allocation to one page, since n \ | |
239 | * is limited to 1024 and the smallest page size on Linux \ | |
240 | * is 4k, this should not happen, don't try to make it work. \ | |
241 | */ \ | |
242 | if (n_in_bytes > PAGE_SIZE) { \ | |
243 | WARN_ON_ONCE(1); \ | |
244 | /* Inform the user that we did not output everything. */ \ | |
245 | tp_locvar->overflow = 1; \ | |
246 | goto error; \ | |
247 | } else { \ | |
248 | tp_locvar->nr_bytes = n_in_bytes; \ | |
249 | tp_locvar->nr_ulong = DIV_ROUND_UP(n_in_bytes, \ | |
250 | sizeof(unsigned long)); \ | |
251 | } \ | |
252 | \ | |
253 | if (inp) { \ | |
ec85ce1d JD |
254 | tp_locvar->fds_in = lttng_tp_mempool_alloc( \ |
255 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
29751f7c JD |
256 | if (!tp_locvar->fds_in) \ |
257 | goto error; \ | |
258 | \ | |
259 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
260 | tp_locvar->fds_in, inp, \ | |
261 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
262 | if (err != 0) \ | |
263 | goto error; \ | |
264 | } \ | |
265 | if (outp) { \ | |
ec85ce1d JD |
266 | tp_locvar->fds_out = lttng_tp_mempool_alloc( \ |
267 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
29751f7c JD |
268 | if (!tp_locvar->fds_out) \ |
269 | goto error; \ | |
270 | \ | |
271 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
272 | tp_locvar->fds_out, outp, \ | |
273 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
274 | if (err != 0) \ | |
275 | goto error; \ | |
276 | } \ | |
277 | if (exp) { \ | |
ec85ce1d JD |
278 | tp_locvar->fds_ex = lttng_tp_mempool_alloc( \ |
279 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
29751f7c JD |
280 | if (!tp_locvar->fds_ex) \ |
281 | goto error; \ | |
282 | \ | |
283 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
284 | tp_locvar->fds_ex, exp, \ | |
285 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
286 | if (err != 0) \ | |
287 | goto error; \ | |
288 | } \ | |
289 | goto end; \ | |
290 | \ | |
291 | error: \ | |
292 | tp_locvar->nr_bytes = 0; \ | |
293 | tp_locvar->nr_ulong = 0; \ | |
294 | end: ; /* Label at end of compound statement. */ \ | |
295 | } \ | |
296 | ) | |
297 | ||
298 | #define LTTNG_SYSCALL_SELECT_fds_field_LE(name, input) \ | |
299 | ctf_custom_field( \ | |
300 | ctf_custom_type( \ | |
437d5aa5 | 301 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 10) \ |
29751f7c | 302 | ), \ |
ceabb767 | 303 | _ ## name ## _length, \ |
29751f7c | 304 | ctf_custom_code( \ |
29751f7c JD |
305 | if (input) { \ |
306 | ctf_integer_type(uint8_t, tp_locvar->nr_bytes) \ | |
307 | ctf_align(uint8_t) \ | |
308 | } else { \ | |
309 | ctf_integer_type(uint8_t, 0) \ | |
310 | ctf_align(uint8_t) \ | |
29751f7c | 311 | } \ |
ceabb767 MD |
312 | ) \ |
313 | ) \ | |
314 | ctf_custom_field( \ | |
315 | ctf_custom_type( \ | |
51ef4536 | 316 | lttng_kernel_static_type_sequence(NULL, \ |
437d5aa5 MD |
317 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 16), \ |
318 | 0, \ | |
319 | none) \ | |
ceabb767 MD |
320 | ), \ |
321 | name, \ | |
322 | ctf_custom_code( \ | |
323 | unsigned int src; \ | |
324 | unsigned int nr_bytes_out = 0; \ | |
325 | \ | |
326 | if (!input) \ | |
327 | goto skip_##name; \ | |
29751f7c JD |
328 | \ |
329 | for (src = 0; src < tp_locvar->nr_ulong; src++) { \ | |
330 | int dst; \ | |
331 | for (dst = 0; dst < sizeof(long); dst++) { \ | |
332 | if (nr_bytes_out++ >= tp_locvar->nr_bytes) { \ | |
333 | goto skip_##name; \ | |
334 | } \ | |
335 | ctf_user_integer_type(uint8_t, \ | |
336 | ((uint8_t __user *) (input->fds_bits + src))[dst]); \ | |
337 | } \ | |
338 | } \ | |
339 | skip_##name: ; \ | |
340 | ) \ | |
341 | ) | |
342 | ||
343 | #define LTTNG_SYSCALL_SELECT_fds_field_BE(name, input) \ | |
344 | ctf_custom_field( \ | |
345 | ctf_custom_type( \ | |
437d5aa5 | 346 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 10) \ |
29751f7c | 347 | ), \ |
ceabb767 | 348 | _ ## name ## _length, \ |
29751f7c | 349 | ctf_custom_code( \ |
29751f7c JD |
350 | if (input) { \ |
351 | ctf_integer_type(uint8_t, tp_locvar->nr_bytes) \ | |
352 | ctf_align(uint8_t) \ | |
353 | } else { \ | |
354 | ctf_integer_type(uint8_t, 0) \ | |
355 | ctf_align(uint8_t) \ | |
29751f7c | 356 | } \ |
ceabb767 MD |
357 | ) \ |
358 | ) \ | |
359 | ctf_custom_field( \ | |
360 | ctf_custom_type( \ | |
51ef4536 | 361 | lttng_kernel_static_type_sequence(NULL, \ |
437d5aa5 MD |
362 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 16), \ |
363 | 0, \ | |
364 | none) \ | |
ceabb767 MD |
365 | ), \ |
366 | name, \ | |
367 | ctf_custom_code( \ | |
368 | unsigned int src, nr_bytes_out = 0; \ | |
369 | \ | |
370 | if (!input) \ | |
371 | goto skip_##name; \ | |
29751f7c JD |
372 | \ |
373 | for (src = 0; src < tp_locvar->nr_ulong; src++) { \ | |
374 | int dst; \ | |
375 | for (dst = sizeof(long); dst >= 0; dst--) { \ | |
376 | if (nr_bytes_out++ >= tp_locvar->nr_bytes) { \ | |
377 | goto skip_##name; \ | |
378 | } \ | |
379 | ctf_user_integer_type(uint8_t, \ | |
380 | ((uint8_t __user *) (input->fds_bits + src))[dst]); \ | |
381 | } \ | |
382 | } \ | |
383 | skip_##name: ; \ | |
384 | ) \ | |
385 | ) | |
386 | ||
387 | #define LTTNG_SYSCALL_SELECT_code_post \ | |
ec85ce1d JD |
388 | lttng_tp_mempool_free(tp_locvar->fds_in); \ |
389 | lttng_tp_mempool_free(tp_locvar->fds_out); \ | |
390 | lttng_tp_mempool_free(tp_locvar->fds_ex); | |
29751f7c | 391 | |
a6370148 | 392 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
29751f7c JD |
393 | #define OVERRIDE_32_select |
394 | #define OVERRIDE_64_select | |
395 | SC_LTTNG_TRACEPOINT_EVENT_CODE(select, | |
396 | TP_PROTO(sc_exit(long ret,) int n, fd_set __user *inp, fd_set __user *outp, | |
397 | fd_set __user *exp, struct timeval *tvp), | |
398 | TP_ARGS(sc_exit(ret,) n, inp, outp, exp, tvp), | |
399 | TP_locvar( | |
400 | LTTNG_SYSCALL_SELECT_locvar | |
401 | ), | |
402 | TP_code_pre( | |
403 | LTTNG_SYSCALL_SELECT_code_pre | |
404 | ), | |
405 | TP_FIELDS( | |
406 | sc_exit(ctf_integer(long, ret, ret)) | |
407 | sc_in(ctf_integer(int, n, n)) | |
408 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
409 | sc_inout(ctf_integer(struct timeval *, tvp, tvp)) | |
410 | ||
411 | sc_inout( | |
412 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
413 | LTTNG_SYSCALL_SELECT_fds_field_LE(readfds, inp) | |
414 | LTTNG_SYSCALL_SELECT_fds_field_LE(writefds, outp) | |
415 | LTTNG_SYSCALL_SELECT_fds_field_LE(exceptfds, exp) | |
416 | #else | |
417 | LTTNG_SYSCALL_SELECT_fds_field_BE(readfds, inp) | |
418 | LTTNG_SYSCALL_SELECT_fds_field_BE(writefds, outp) | |
419 | LTTNG_SYSCALL_SELECT_fds_field_BE(exceptfds, exp) | |
420 | #endif | |
421 | ) | |
422 | ), | |
423 | TP_code_post( | |
424 | LTTNG_SYSCALL_SELECT_code_post | |
425 | ) | |
426 | ) | |
639655f9 | 427 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
29751f7c JD |
428 | |
429 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
430 | #define OVERRIDE_32_pselect6 | |
431 | #define OVERRIDE_64_pselect6 | |
432 | SC_LTTNG_TRACEPOINT_EVENT_CODE(pselect6, | |
433 | TP_PROTO(sc_exit(long ret,) int n, fd_set __user * inp, fd_set __user * outp, | |
434 | fd_set __user * exp, struct timeval __user * tvp, void __user * sig), | |
435 | TP_ARGS(sc_exit(ret,) n, inp, outp, exp, tvp, sig), | |
436 | TP_locvar( | |
437 | LTTNG_SYSCALL_SELECT_locvar | |
438 | ), | |
439 | TP_code_pre( | |
440 | LTTNG_SYSCALL_SELECT_code_pre | |
441 | ), | |
442 | TP_FIELDS( | |
443 | sc_exit(ctf_integer(long, ret, ret)) | |
444 | sc_in(ctf_integer(int, n, n)) | |
445 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
446 | sc_inout(ctf_integer(struct timeval *, tvp, tvp)) | |
447 | sc_in(ctf_integer_hex(void *, sig, sig)) | |
448 | ||
449 | sc_inout( | |
450 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
451 | LTTNG_SYSCALL_SELECT_fds_field_LE(readfds, inp) | |
452 | LTTNG_SYSCALL_SELECT_fds_field_LE(writefds, outp) | |
453 | LTTNG_SYSCALL_SELECT_fds_field_LE(exceptfds, exp) | |
454 | #else | |
455 | LTTNG_SYSCALL_SELECT_fds_field_BE(readfds, inp) | |
456 | LTTNG_SYSCALL_SELECT_fds_field_BE(writefds, outp) | |
457 | LTTNG_SYSCALL_SELECT_fds_field_BE(exceptfds, exp) | |
458 | #endif | |
459 | ) | |
460 | ), | |
461 | TP_code_post( | |
462 | LTTNG_SYSCALL_SELECT_code_post | |
463 | ) | |
464 | ) | |
465 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
466 | ||
9857164a | 467 | #ifdef LTTNG_CREATE_FIELD_METADATA |
6a2ecd2e JD |
468 | #ifndef ONCE_LTTNG_TRACE_POLL_H |
469 | #define ONCE_LTTNG_TRACE_POLL_H | |
470 | ||
471 | #define LTTNG_POLL_NRFLAGS (POLLNVAL + 1) | |
472 | #define POLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \ | |
473 | ilog2(LTTNG_POLL_NRFLAGS - 1) | |
474 | ||
9857164a | 475 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN |
6a2ecd2e JD |
476 | /* |
477 | * Only extract the values specified by iBCS2 for now. | |
478 | */ | |
437d5aa5 MD |
479 | static const struct lttng_kernel_event_field *lttng_pollfd_flag_fields[] = { |
480 | [ilog2(POLLIN)] = lttng_kernel_static_event_field("POLLIN", | |
481 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
482 | false, false, false), | |
483 | [ilog2(POLLPRI)] = lttng_kernel_static_event_field("POLLPRI", | |
484 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
485 | false, false, false), | |
486 | [ilog2(POLLOUT)] = lttng_kernel_static_event_field("POLLOUT", | |
487 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
488 | false, false, false), | |
489 | [ilog2(POLLERR)] = lttng_kernel_static_event_field("POLLERR", | |
490 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
491 | false, false, false), | |
492 | [ilog2(POLLHUP)] = lttng_kernel_static_event_field("POLLHUP", | |
493 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
494 | false, false, false), | |
495 | [ilog2(POLLNVAL)] = lttng_kernel_static_event_field("POLLNVAL", | |
496 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
497 | false, false, false), | |
498 | [ilog2(LTTNG_POLL_NRFLAGS)] = lttng_kernel_static_event_field("padding", | |
499 | lttng_kernel_static_type_integer(POLL_FLAGS_PADDING_SIZE, 1, 0, __LITTLE_ENDIAN, 10), | |
500 | false, false, false), | |
6a2ecd2e JD |
501 | }; |
502 | ||
9857164a FD |
503 | static_assert(((ARRAY_SIZE(lttng_pollfd_flag_fields) - 1) + POLL_FLAGS_PADDING_SIZE) == sizeof(uint8_t) * BITS_PER_BYTE); |
504 | ||
505 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ | |
506 | ||
507 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_pollfd_flag_fields_struct), | |
508 | PARAMS(lttng_kernel_static_type_struct_init( ARRAY_SIZE(lttng_pollfd_flag_fields), lttng_pollfd_flag_fields, 0))) | |
509 | ||
510 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN | |
437d5aa5 MD |
511 | static const struct lttng_kernel_event_field *lttng_pollfd_fields[] = { |
512 | [0] = lttng_kernel_static_event_field("fd", lttng_kernel_static_type_integer_from_type(int, __BYTE_ORDER, 10), | |
513 | false, false, false), | |
514 | [1] = lttng_kernel_static_event_field("raw_events", lttng_kernel_static_type_integer_from_type(uint16_t, __BYTE_ORDER, 16), | |
515 | false, false, false), | |
516 | [2] = lttng_kernel_static_event_field("events", | |
9857164a | 517 | (const struct lttng_kernel_type_common *) <tng_pollfd_flag_fields_struct, |
437d5aa5 | 518 | false, false, false), |
6a2ecd2e | 519 | }; |
9857164a FD |
520 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ |
521 | ||
522 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_pollfd_fields_struct), | |
523 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(lttng_pollfd_fields), lttng_pollfd_fields, 0))) | |
6a2ecd2e | 524 | |
6a2ecd2e | 525 | #endif /* ONCE_LTTNG_TRACE_POLL_H */ |
9857164a | 526 | #endif /* LTTNG_CREATE_FIELD_METADATA */ |
6a2ecd2e JD |
527 | |
528 | #define LTTNG_SYSCALL_POLL_locvar \ | |
529 | unsigned int fds_length, fds_max_len, alloc_fds; \ | |
530 | struct pollfd *fds; \ | |
531 | uint8_t overflow; | |
532 | ||
533 | #define LTTNG_SYSCALL_POLL_code_pre \ | |
6a2ecd2e JD |
534 | tp_locvar->fds = NULL; \ |
535 | tp_locvar->overflow = 0; \ | |
536 | \ | |
537 | sc_in( \ | |
538 | if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \ | |
539 | tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \ | |
540 | tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \ | |
541 | tp_locvar->overflow = 1; \ | |
542 | } else { \ | |
543 | tp_locvar->fds_length = nfds; \ | |
544 | tp_locvar->fds_max_len = nfds; \ | |
545 | } \ | |
546 | tp_locvar->alloc_fds = tp_locvar->fds_length * sizeof(struct pollfd); \ | |
547 | ) \ | |
548 | /* \ | |
549 | * On exit, the number of active FDs is determined by ret, \ | |
550 | * nfds stays the same as the entry, but we only want to \ | |
551 | * output the FDs that are relevant. \ | |
552 | */ \ | |
553 | sc_out( \ | |
554 | if (ret <= 0 || ret > nfds) \ | |
555 | goto error; \ | |
556 | \ | |
557 | if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \ | |
558 | tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \ | |
559 | tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \ | |
560 | tp_locvar->overflow = 1; \ | |
561 | } else { \ | |
562 | tp_locvar->fds_length = ret; \ | |
563 | tp_locvar->fds_max_len = nfds; \ | |
564 | } \ | |
565 | tp_locvar->alloc_fds = tp_locvar->fds_max_len * sizeof(struct pollfd); \ | |
566 | ) \ | |
567 | { \ | |
568 | int err; \ | |
569 | \ | |
ec85ce1d | 570 | tp_locvar->fds = lttng_tp_mempool_alloc(tp_locvar->alloc_fds); \ |
6a2ecd2e JD |
571 | if (!tp_locvar->fds) \ |
572 | goto error; \ | |
573 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
41a3cca2 | 574 | tp_locvar->fds, ufds, tp_locvar->alloc_fds); \ |
6a2ecd2e JD |
575 | if (err != 0) \ |
576 | goto error; \ | |
577 | } \ | |
578 | goto end; \ | |
579 | \ | |
580 | error: \ | |
581 | tp_locvar->fds_length = 0; \ | |
582 | tp_locvar->fds_max_len = 0; \ | |
583 | end: \ | |
584 | ; | |
585 | ||
586 | #define LTTNG_SYSCALL_POLL_fds_field \ | |
587 | sc_in( \ | |
588 | ctf_custom_field( \ | |
589 | ctf_custom_type( \ | |
437d5aa5 | 590 | lttng_kernel_static_type_sequence("fds_length", \ |
9857164a | 591 | (const struct lttng_kernel_type_common *) <tng_pollfd_fields_struct, \ |
437d5aa5 MD |
592 | 0, \ |
593 | none) \ | |
6a2ecd2e JD |
594 | ), \ |
595 | fds, \ | |
596 | ctf_custom_code( \ | |
597 | uint32_t i; \ | |
598 | \ | |
599 | ctf_align(int) /* Align on largest field in struct. */ \ | |
600 | for (i = 0; i < tp_locvar->fds_length; i++) { \ | |
601 | ctf_integer_type(int, tp_locvar->fds[i].fd) \ | |
602 | ctf_integer_type(short, tp_locvar->fds[i].events) \ | |
603 | ctf_integer_bitfield_type(uint8_t, \ | |
604 | (uint8_t) tp_locvar->fds[i].events) \ | |
605 | } \ | |
606 | ) \ | |
607 | ) \ | |
608 | ) \ | |
609 | sc_out( \ | |
610 | ctf_custom_field( \ | |
611 | ctf_custom_type( \ | |
437d5aa5 | 612 | lttng_kernel_static_type_sequence("fds_length", \ |
9857164a | 613 | (const struct lttng_kernel_type_common *) <tng_pollfd_fields_struct, \ |
437d5aa5 MD |
614 | 0, \ |
615 | none) \ | |
6a2ecd2e JD |
616 | ), \ |
617 | fds, \ | |
618 | ctf_custom_code( \ | |
619 | unsigned int i, nr = 0; \ | |
620 | \ | |
621 | ctf_align(int) /* Align on largest field in struct. */ \ | |
622 | /* \ | |
623 | * Iterate over the complete array, but only output \ | |
624 | * "ret" active FDs. \ | |
625 | */ \ | |
626 | for (i = 0; i < tp_locvar->fds_max_len; i++) { \ | |
627 | if (!tp_locvar->fds[i].revents) \ | |
628 | continue; \ | |
629 | if (nr++ >= tp_locvar->fds_length) \ | |
630 | break; \ | |
631 | ctf_integer_type(int, tp_locvar->fds[i].fd) \ | |
632 | ctf_integer_type(short, tp_locvar->fds[i].revents) \ | |
633 | ctf_integer_bitfield_type(uint8_t, \ | |
634 | (uint8_t) tp_locvar->fds[i].revents) \ | |
635 | } \ | |
636 | /* \ | |
637 | * If there is a discrepancy between ret and the \ | |
638 | * content of revents (e.g. caused by userspace corrupting \ | |
639 | * the array from a concurrent thread), we have to output \ | |
640 | * zeros to keep the trace readable. \ | |
641 | */ \ | |
642 | for (i = nr; i < tp_locvar->fds_length; i++) { \ | |
643 | ctf_integer_type(int, 0) \ | |
644 | ctf_integer_type(short, 0) \ | |
645 | ctf_integer_bitfield_type(uint8_t, 0) \ | |
646 | } \ | |
647 | ) \ | |
648 | ) \ | |
649 | ) | |
650 | ||
651 | #define LTTNG_SYSCALL_POLL_code_post \ | |
ec85ce1d | 652 | lttng_tp_mempool_free(tp_locvar->fds); |
6a2ecd2e | 653 | |
a6370148 | 654 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
6a2ecd2e JD |
655 | #define OVERRIDE_32_poll |
656 | #define OVERRIDE_64_poll | |
657 | SC_LTTNG_TRACEPOINT_EVENT_CODE(poll, | |
658 | TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds, | |
659 | unsigned int nfds, int timeout_msecs), | |
660 | TP_ARGS(sc_exit(ret,) ufds, nfds, timeout_msecs), | |
661 | TP_locvar( | |
662 | LTTNG_SYSCALL_POLL_locvar | |
663 | ), | |
664 | TP_code_pre( | |
665 | LTTNG_SYSCALL_POLL_code_pre | |
666 | ), | |
667 | TP_FIELDS( | |
668 | sc_exit(ctf_integer(long, ret, ret)) | |
669 | sc_in(ctf_integer(int, timeout_msecs, timeout_msecs)) | |
670 | sc_inout(ctf_integer(unsigned int, nfds, nfds)) | |
671 | sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
672 | sc_in(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
673 | LTTNG_SYSCALL_POLL_fds_field | |
674 | ), | |
675 | TP_code_post( | |
676 | LTTNG_SYSCALL_POLL_code_post | |
677 | ) | |
678 | ) | |
639655f9 | 679 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
6a2ecd2e JD |
680 | |
681 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
682 | #define OVERRIDE_32_ppoll | |
683 | #define OVERRIDE_64_ppoll | |
684 | SC_LTTNG_TRACEPOINT_EVENT_CODE(ppoll, | |
685 | TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds, | |
686 | unsigned int nfds, struct timespec * tsp, const sigset_t * sigmask, size_t sigsetsize), | |
687 | TP_ARGS(sc_exit(ret,) ufds, nfds, tsp, sigmask, sigsetsize), | |
688 | TP_locvar( | |
689 | LTTNG_SYSCALL_POLL_locvar | |
690 | ), | |
691 | TP_code_pre( | |
692 | LTTNG_SYSCALL_POLL_code_pre | |
693 | ), | |
694 | TP_FIELDS( | |
695 | sc_exit(ctf_integer(long, ret, ret)) | |
696 | sc_in(ctf_integer(struct timespec *, tsp, tsp)) | |
697 | sc_in(ctf_integer(const sigset_t *, sigmask, sigmask)) | |
698 | sc_in(ctf_integer(size_t, sigsetsize, sigsetsize)) | |
699 | sc_inout(ctf_integer(unsigned int, nfds, nfds)) | |
700 | sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
701 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
702 | LTTNG_SYSCALL_POLL_fds_field | |
703 | ), | |
704 | TP_code_post( | |
705 | LTTNG_SYSCALL_POLL_code_post | |
706 | ) | |
707 | ) | |
708 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
709 | ||
45e0ded1 JD |
710 | #include <linux/eventpoll.h> |
711 | ||
712 | SC_LTTNG_TRACEPOINT_ENUM(lttng_epoll_op, | |
713 | TP_ENUM_VALUES( | |
714 | ctf_enum_value("EPOLL_CTL_ADD", EPOLL_CTL_ADD) | |
715 | ctf_enum_value("EPOLL_CTL_DEL", EPOLL_CTL_DEL) | |
716 | ctf_enum_value("EPOLL_CTL_MOD", EPOLL_CTL_MOD) | |
717 | ) | |
718 | ) | |
719 | ||
9857164a FD |
720 | #ifdef LTTNG_CREATE_FIELD_METADATA |
721 | ||
45e0ded1 JD |
722 | #ifndef ONCE_LTTNG_TRACE_EPOLL_CTL_H |
723 | #define ONCE_LTTNG_TRACE_EPOLL_CTL_H | |
724 | ||
725 | #define LTTNG_EPOLL_NRFLAGS (POLLHUP + 1) | |
726 | #define EPOLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \ | |
727 | ilog2(LTTNG_EPOLL_NRFLAGS - 1) | |
728 | ||
9857164a | 729 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN |
45e0ded1 JD |
730 | /* |
731 | * Only extract the values specified by iBCS2 for now. | |
732 | */ | |
437d5aa5 | 733 | static const struct lttng_kernel_event_field *lttng_epoll_ctl_events_fields[] = { |
45e0ded1 | 734 | /* 0x0001 */ |
437d5aa5 MD |
735 | [ilog2(POLLIN)] = lttng_kernel_static_event_field("EPOLLIN", |
736 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
737 | false, false, false), | |
45e0ded1 | 738 | /* 0x0002 */ |
437d5aa5 MD |
739 | [ilog2(POLLPRI)] = lttng_kernel_static_event_field("EPOLLPRI", |
740 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
741 | false, false, false), | |
45e0ded1 | 742 | /* 0x0004 */ |
437d5aa5 MD |
743 | [ilog2(POLLOUT)] = lttng_kernel_static_event_field("EPOLLOUT", |
744 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
745 | false, false, false), | |
45e0ded1 | 746 | /* 0x0008 */ |
437d5aa5 MD |
747 | [ilog2(POLLERR)] = lttng_kernel_static_event_field("EPOLLERR", |
748 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
749 | false, false, false), | |
45e0ded1 | 750 | /* 0x0010 */ |
437d5aa5 MD |
751 | [ilog2(POLLHUP)] = lttng_kernel_static_event_field("EPOLLHUP", |
752 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
753 | false, false, false), | |
754 | [ilog2(LTTNG_EPOLL_NRFLAGS)] = lttng_kernel_static_event_field("padding", | |
755 | lttng_kernel_static_type_integer(EPOLL_FLAGS_PADDING_SIZE, 1, 0, __LITTLE_ENDIAN, 10), | |
756 | false, false, false), | |
45e0ded1 | 757 | }; |
9857164a FD |
758 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ |
759 | ||
760 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_epoll_ctl_events_fields_struct), | |
761 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(lttng_epoll_ctl_events_fields), lttng_epoll_ctl_events_fields, 0))) | |
45e0ded1 | 762 | |
9857164a | 763 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN |
437d5aa5 MD |
764 | static const struct lttng_kernel_event_field *lttng_epoll_data_fields[] = { |
765 | [0] = lttng_kernel_static_event_field("u64", | |
766 | lttng_kernel_static_type_integer_from_type(uint64_t, __BYTE_ORDER, 16), | |
767 | false, false, false), | |
768 | [1] = lttng_kernel_static_event_field("fd", | |
769 | lttng_kernel_static_type_integer_from_type(int, __BYTE_ORDER, 10), | |
770 | false, false, false), | |
45e0ded1 | 771 | }; |
9857164a | 772 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ |
45e0ded1 | 773 | |
9857164a FD |
774 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_epoll_data_fields_struct), |
775 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(lttng_epoll_data_fields), lttng_epoll_data_fields, 0))) | |
776 | ||
777 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN | |
437d5aa5 MD |
778 | static const struct lttng_kernel_event_field *epoll_ctl_fields[] = { |
779 | [0] = lttng_kernel_static_event_field("data_union", | |
9857164a | 780 | (const struct lttng_kernel_type_common *) <tng_epoll_data_fields_struct, |
437d5aa5 MD |
781 | false, false, false), |
782 | [1] = lttng_kernel_static_event_field("raw_events", | |
783 | lttng_kernel_static_type_integer_from_type(uint32_t, __BYTE_ORDER, 16), | |
784 | false, false, false), | |
785 | [2] = lttng_kernel_static_event_field("events", | |
9857164a | 786 | (const struct lttng_kernel_type_common *) <tng_epoll_ctl_events_fields_struct, |
437d5aa5 | 787 | false, false, false), |
45e0ded1 | 788 | }; |
9857164a FD |
789 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ |
790 | ||
791 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct epoll_ctl_fields_struct), | |
792 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(epoll_ctl_fields), epoll_ctl_fields, 0))) | |
793 | ||
45e0ded1 | 794 | #endif /* ONCE_LTTNG_TRACE_EPOLL_CTL_H */ |
9857164a | 795 | #endif /* LTTNG_CREATE_FIELD_METADATA */ |
45e0ded1 JD |
796 | |
797 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
798 | #define OVERRIDE_32_epoll_ctl | |
799 | #define OVERRIDE_64_epoll_ctl | |
800 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_ctl, | |
801 | TP_PROTO(sc_exit(long ret,) int epfd, int op, int fd, | |
802 | struct epoll_event __user * uevent), | |
803 | TP_ARGS(sc_exit(ret,) epfd, op, fd, uevent), | |
804 | TP_locvar( | |
805 | struct epoll_event event; | |
806 | int err; | |
807 | ), | |
808 | TP_code_pre( | |
809 | tp_locvar->err = lib_ring_buffer_copy_from_user_check_nofault( | |
810 | &tp_locvar->event, uevent, sizeof(struct epoll_event)); | |
811 | ), | |
812 | TP_FIELDS( | |
813 | sc_exit(ctf_integer(long, ret, ret)) | |
814 | sc_in(ctf_integer(int, epfd, epfd)) | |
815 | sc_in(ctf_enum(lttng_epoll_op, int, op_enum, op)) | |
816 | sc_in(ctf_integer(int, fd, fd)) | |
817 | sc_in( | |
818 | ctf_custom_field( | |
819 | ctf_custom_type( | |
e42c4f49 | 820 | (const struct lttng_kernel_type_common *) &epoll_ctl_fields_struct |
45e0ded1 JD |
821 | ), |
822 | event, | |
823 | ctf_custom_code( | |
824 | ctf_align(uint64_t) | |
825 | if (!tp_locvar->err) { | |
826 | ctf_integer_type(uint64_t, tp_locvar->event.data) | |
827 | ctf_integer_type(int, tp_locvar->event.data) | |
828 | ctf_integer_bitfield_type(uint32_t, | |
829 | tp_locvar->event.events) | |
830 | ctf_integer_bitfield_type(uint8_t, | |
831 | (uint8_t) tp_locvar->event.events) | |
832 | } else { | |
833 | ctf_integer_type(uint64_t, 0) | |
834 | ctf_integer_type(int, 0) | |
835 | ctf_integer_bitfield_type(uint32_t, 0) | |
836 | ctf_integer_bitfield_type(uint8_t, 0) | |
837 | } | |
838 | ) | |
839 | ) | |
840 | ) | |
841 | ), | |
842 | TP_code_post() | |
843 | ) | |
844 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
845 | ||
9857164a | 846 | #ifdef LTTNG_CREATE_FIELD_METADATA |
f22697ca JD |
847 | #ifndef ONCE_LTTNG_TRACE_EPOLL_H |
848 | #define ONCE_LTTNG_TRACE_EPOLL_H | |
849 | ||
9857164a | 850 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN |
437d5aa5 MD |
851 | static const struct lttng_kernel_event_field *lttng_epoll_wait_fields[] = lttng_kernel_static_event_field_array( |
852 | [0] = lttng_kernel_static_event_field("data_union", | |
9857164a | 853 | (const struct lttng_kernel_type_common *) <tng_epoll_data_fields_struct, |
437d5aa5 MD |
854 | false, false, false), |
855 | [1] = lttng_kernel_static_event_field("raw_events", lttng_kernel_static_type_integer_from_type(uint32_t, __BYTE_ORDER, 16), | |
856 | false, false, false), | |
857 | [2] = lttng_kernel_static_event_field("events", | |
9857164a | 858 | (const struct lttng_kernel_type_common *) <tng_epoll_ctl_events_fields_struct, |
437d5aa5 MD |
859 | false, false, false), |
860 | ); | |
f22697ca | 861 | |
9857164a FD |
862 | static_assert(((ARRAY_SIZE(lttng_epoll_ctl_events_fields) - 1) + EPOLL_FLAGS_PADDING_SIZE) == sizeof(uint8_t) * BITS_PER_BYTE); |
863 | ||
864 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ | |
865 | ||
866 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_epoll_wait_fields_struct), | |
867 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(lttng_epoll_wait_fields), lttng_epoll_wait_fields, 0))) | |
868 | ||
f22697ca | 869 | #endif /* ONCE_LTTNG_TRACE_EPOLL_H */ |
9857164a | 870 | #endif /* LTTNG_CREATE_FIELD_METADATA */ |
f22697ca JD |
871 | |
872 | #define LTTNG_SYSCALL_EPOLL_WAIT_locvar \ | |
873 | sc_out( \ | |
874 | unsigned int fds_length; \ | |
875 | uint8_t overflow; \ | |
876 | struct epoll_event *events; \ | |
877 | ) | |
878 | ||
879 | #define LTTNG_SYSCALL_EPOLL_WAIT_code_pre \ | |
f22697ca JD |
880 | sc_out({ \ |
881 | int err; \ | |
882 | unsigned long maxalloc; \ | |
883 | \ | |
884 | tp_locvar->fds_length = 0; \ | |
885 | tp_locvar->events = NULL; \ | |
886 | tp_locvar->overflow = 0; \ | |
887 | \ | |
888 | if (maxevents <= 0 || ret <= 0 || ret > maxevents) \ | |
889 | goto skip_code; \ | |
890 | \ | |
891 | if (maxevents > PAGE_SIZE / sizeof(struct epoll_event)) { \ | |
892 | maxalloc = PAGE_SIZE / sizeof(struct epoll_event); \ | |
893 | } else { \ | |
894 | maxalloc = maxevents; \ | |
895 | } \ | |
896 | \ | |
897 | if (ret > maxalloc) { \ | |
898 | tp_locvar->fds_length = maxalloc; \ | |
899 | tp_locvar->overflow = 1; \ | |
900 | } else { \ | |
901 | tp_locvar->fds_length = ret; \ | |
902 | } \ | |
903 | \ | |
437d5aa5 | 904 | tp_locvar->events = lttng_tp_mempool_alloc( \ |
ec85ce1d | 905 | maxalloc * sizeof(struct epoll_event)); \ |
f22697ca JD |
906 | if (!tp_locvar->events) { \ |
907 | tp_locvar->fds_length = 0; \ | |
908 | goto skip_code; \ | |
909 | } \ | |
910 | \ | |
911 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
912 | tp_locvar->events, uevents, \ | |
41a3cca2 | 913 | maxalloc * sizeof(struct epoll_event)); \ |
f22697ca JD |
914 | if (err != 0) \ |
915 | tp_locvar->fds_length = 0; \ | |
916 | } \ | |
917 | skip_code: \ | |
918 | ) | |
919 | ||
920 | #define LTTNG_SYSCALL_EPOLL_WAIT_fds_field \ | |
921 | ctf_custom_field( \ | |
922 | ctf_custom_type( \ | |
437d5aa5 | 923 | lttng_kernel_static_type_sequence("fds_length", \ |
e42c4f49 | 924 | (const struct lttng_kernel_type_common *) <tng_epoll_wait_fields_struct, \ |
437d5aa5 MD |
925 | 0, \ |
926 | none) \ | |
f22697ca JD |
927 | ), \ |
928 | fds, \ | |
929 | ctf_custom_code( \ | |
930 | uint32_t i; \ | |
931 | \ | |
932 | ctf_align(uint64_t) \ | |
933 | for (i = 0; i < tp_locvar->fds_length; i++) { \ | |
934 | ctf_integer_type(uint64_t, tp_locvar->events[i].data) \ | |
935 | ctf_integer_type(int, tp_locvar->events[i].data) \ | |
936 | ctf_integer_bitfield_type(uint32_t, \ | |
937 | tp_locvar->events[i].events) \ | |
938 | ctf_integer_bitfield_type(uint8_t, \ | |
939 | (uint8_t) tp_locvar->events[i].events) \ | |
940 | } \ | |
941 | ) \ | |
942 | ) | |
943 | ||
944 | #define LTTNG_SYSCALL_EPOLL_WAIT_code_post \ | |
945 | sc_out( \ | |
ec85ce1d | 946 | lttng_tp_mempool_free(tp_locvar->events); \ |
f22697ca JD |
947 | ) |
948 | ||
949 | ||
a6370148 | 950 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
f22697ca JD |
951 | #define OVERRIDE_32_epoll_wait |
952 | #define OVERRIDE_64_epoll_wait | |
953 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_wait, | |
954 | TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents, | |
955 | int maxevents, int timeout), | |
956 | TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout), | |
957 | TP_locvar( | |
958 | LTTNG_SYSCALL_EPOLL_WAIT_locvar | |
959 | ), | |
960 | TP_code_pre( | |
961 | LTTNG_SYSCALL_EPOLL_WAIT_code_pre | |
962 | ), | |
963 | TP_FIELDS( | |
964 | sc_exit(ctf_integer(long, ret, ret)) | |
965 | sc_in(ctf_integer(int, epfd, epfd)) | |
966 | sc_in(ctf_integer(int, maxevents, maxevents)) | |
967 | sc_in(ctf_integer(int, timeout, timeout)) | |
968 | sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
969 | sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
970 | sc_out( | |
971 | LTTNG_SYSCALL_EPOLL_WAIT_fds_field | |
972 | ) | |
973 | ), | |
974 | TP_code_post( | |
975 | LTTNG_SYSCALL_EPOLL_WAIT_code_post | |
976 | ) | |
977 | ) | |
639655f9 | 978 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
f22697ca JD |
979 | |
980 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
981 | #define OVERRIDE_32_epoll_pwait | |
982 | #define OVERRIDE_64_epoll_pwait | |
983 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_pwait, | |
984 | TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents, | |
985 | int maxevents, int timeout, const sigset_t __user * sigmask, size_t sigsetsize), | |
986 | TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout, sigmask, sigsetsize), | |
987 | TP_locvar( | |
988 | LTTNG_SYSCALL_EPOLL_WAIT_locvar | |
989 | ), | |
990 | TP_code_pre( | |
991 | LTTNG_SYSCALL_EPOLL_WAIT_code_pre | |
992 | ), | |
993 | TP_FIELDS( | |
994 | sc_exit(ctf_integer(long, ret, ret)) | |
995 | sc_in(ctf_integer(int, epfd, epfd)) | |
996 | sc_in(ctf_integer(int, maxevents, maxevents)) | |
997 | sc_in(ctf_integer(int, timeout, timeout)) | |
998 | sc_in(ctf_integer_hex(const sigset_t *, sigmask, sigmask)) | |
999 | sc_in(ctf_integer(size_t, sigsetsize, sigsetsize)) | |
1000 | sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
1001 | sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
1002 | sc_out( | |
1003 | LTTNG_SYSCALL_EPOLL_WAIT_fds_field | |
1004 | ) | |
1005 | ), | |
1006 | TP_code_post( | |
1007 | LTTNG_SYSCALL_EPOLL_WAIT_code_post | |
1008 | ) | |
1009 | ) | |
1010 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
1011 | ||
771af27e JW |
1012 | #if (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) |
1013 | #define OVERRIDE_32_socketpair | |
1014 | #define OVERRIDE_64_socketpair | |
1015 | SC_LTTNG_TRACEPOINT_EVENT(socketpair, | |
1016 | TP_PROTO(sc_exit(long ret,) int family, int type, int protocol, int *usockvec), | |
1017 | TP_ARGS(sc_exit(ret,) family, type, protocol, usockvec), | |
1018 | TP_FIELDS( | |
1019 | sc_exit(ctf_integer(long, ret, ret)) | |
1020 | sc_in(ctf_integer(int, family, family)) | |
1021 | sc_in(ctf_integer(int, type, type)) | |
1022 | sc_in(ctf_integer(int, protocol, protocol)) | |
1023 | sc_out(ctf_user_array(int, socket, usockvec, 2)) | |
1024 | ) | |
1025 | ) | |
1026 | #endif /* (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
1027 | ||
c8dfb724 GB |
1028 | /* |
1029 | * Enumeration of the open flags, as described in the 'open' | |
1030 | * system call man page. | |
1031 | */ | |
1032 | SC_LTTNG_TRACEPOINT_ENUM(lttng_file_status_flags, | |
1033 | TP_ENUM_VALUES( | |
1034 | ctf_enum_value("O_RDONLY", O_RDONLY) | |
1035 | ctf_enum_value("O_WRONLY", O_WRONLY) | |
1036 | ctf_enum_value("O_RDWR", O_RDWR) | |
1037 | ctf_enum_value("O_CREAT", O_CREAT) | |
1038 | ctf_enum_value("O_EXCL", O_EXCL) | |
1039 | ctf_enum_value("O_NOCTTY", O_NOCTTY) | |
1040 | ctf_enum_value("O_TRUNC", O_TRUNC) | |
1041 | ctf_enum_value("O_APPEND", O_APPEND) | |
1042 | ctf_enum_value("O_NONBLOCK", O_NONBLOCK) | |
1043 | ctf_enum_value("O_DSYNC", O_DSYNC) | |
1044 | ctf_enum_value("FASYNC", FASYNC) | |
1045 | ctf_enum_value("O_DIRECT", O_DIRECT) | |
1046 | ctf_enum_value("O_LARGEFILE", O_LARGEFILE) | |
1047 | ctf_enum_value("O_DIRECTORY", O_DIRECTORY) | |
1048 | ctf_enum_value("O_NOFOLLOW", O_NOFOLLOW) | |
1049 | ctf_enum_value("O_NOATIME", O_NOATIME) | |
1050 | ctf_enum_value("O_CLOEXEC", O_CLOEXEC) | |
1051 | ctf_enum_value("O_SYNC", __O_SYNC) | |
1052 | ctf_enum_value("O_PATH", O_PATH) | |
5f4c791e | 1053 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0)) |
c8dfb724 | 1054 | ctf_enum_value("O_TMPFILE", __O_TMPFILE) |
5f4c791e | 1055 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0)) */ |
c8dfb724 GB |
1056 | ) |
1057 | ) | |
1058 | ||
1059 | /* | |
1060 | * Enumeration of the open flags, as described in the 'open' | |
1061 | * system call man page. | |
1062 | */ | |
1063 | SC_LTTNG_TRACEPOINT_ENUM(lttng_file_mode, | |
1064 | TP_ENUM_VALUES( | |
1065 | ctf_enum_value("S_IRWXU", S_IRWXU) | |
1066 | ctf_enum_value("S_IRUSR", S_IRUSR) | |
1067 | ctf_enum_value("S_IWUSR", S_IWUSR) | |
1068 | ctf_enum_value("S_IXUSR", S_IXUSR) | |
1069 | ctf_enum_value("S_IRWXG", S_IRWXG) | |
1070 | ctf_enum_value("S_IRGRP", S_IRGRP) | |
1071 | ctf_enum_value("S_IWGRP", S_IWGRP) | |
1072 | ctf_enum_value("S_IXGRP", S_IXGRP) | |
1073 | ctf_enum_value("S_IRWXO", S_IRWXO) | |
1074 | ctf_enum_value("S_IROTH", S_IROTH) | |
1075 | ctf_enum_value("S_IWOTH", S_IWOTH) | |
1076 | ctf_enum_value("S_IXOTH", S_IXOTH) | |
1077 | ctf_enum_value("S_ISUID", S_ISUID) | |
1078 | ctf_enum_value("S_ISGID", S_ISGID) | |
1079 | ctf_enum_value("S_ISVTX", S_ISVTX) | |
1080 | ) | |
1081 | ) | |
1082 | ||
1083 | #define OVERRIDE_32_openat | |
1084 | #define OVERRIDE_64_openat | |
1085 | SC_LTTNG_TRACEPOINT_EVENT(openat, | |
1086 | TP_PROTO(sc_exit(long ret,) int dfd, const char * filename, int flags, umode_t mode), | |
1087 | TP_ARGS(sc_exit(ret,) dfd, filename, flags, mode), | |
1088 | TP_FIELDS( | |
1089 | sc_exit(ctf_integer(long, ret, ret)) | |
1090 | sc_in(ctf_integer(int, dfd, dfd)) | |
1091 | sc_in(ctf_user_string(filename, filename)) | |
1092 | sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) | |
1093 | sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) | |
1094 | ) | |
1095 | ) | |
1096 | ||
1097 | #define OVERRIDE_32_open | |
1098 | #define OVERRIDE_64_open | |
1099 | SC_LTTNG_TRACEPOINT_EVENT(open, | |
1100 | TP_PROTO(sc_exit(long ret,) const char * filename, int flags, umode_t mode), | |
1101 | TP_ARGS(sc_exit(ret,) filename, flags, mode), | |
1102 | TP_FIELDS( | |
1103 | sc_exit(ctf_integer(long, ret, ret)) | |
1104 | sc_in(ctf_user_string(filename, filename)) | |
1105 | sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) | |
1106 | sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) | |
1107 | ) | |
1108 | ) | |
1109 | ||
e42e81fd | 1110 | #endif /* CREATE_SYSCALL_TABLE */ |