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( \ | |
f0039724 | 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( \ | |
f0039724 | 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 | ||
16e1064f | 460 | #ifdef LTTNG_CREATE_FIELD_METADATA |
6a2ecd2e JD |
461 | #ifndef ONCE_LTTNG_TRACE_POLL_H |
462 | #define ONCE_LTTNG_TRACE_POLL_H | |
463 | ||
464 | #define LTTNG_POLL_NRFLAGS (POLLNVAL + 1) | |
465 | #define POLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \ | |
466 | ilog2(LTTNG_POLL_NRFLAGS - 1) | |
467 | ||
16e1064f | 468 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN |
6a2ecd2e JD |
469 | /* |
470 | * Only extract the values specified by iBCS2 for now. | |
471 | */ | |
437d5aa5 MD |
472 | static const struct lttng_kernel_event_field *lttng_pollfd_flag_fields[] = { |
473 | [ilog2(POLLIN)] = lttng_kernel_static_event_field("POLLIN", | |
474 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
475 | false, false, false), | |
476 | [ilog2(POLLPRI)] = lttng_kernel_static_event_field("POLLPRI", | |
477 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
478 | false, false, false), | |
479 | [ilog2(POLLOUT)] = lttng_kernel_static_event_field("POLLOUT", | |
480 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
481 | false, false, false), | |
482 | [ilog2(POLLERR)] = lttng_kernel_static_event_field("POLLERR", | |
483 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
484 | false, false, false), | |
485 | [ilog2(POLLHUP)] = lttng_kernel_static_event_field("POLLHUP", | |
486 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
487 | false, false, false), | |
488 | [ilog2(POLLNVAL)] = lttng_kernel_static_event_field("POLLNVAL", | |
489 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
490 | false, false, false), | |
491 | [ilog2(LTTNG_POLL_NRFLAGS)] = lttng_kernel_static_event_field("padding", | |
492 | lttng_kernel_static_type_integer(POLL_FLAGS_PADDING_SIZE, 1, 0, __LITTLE_ENDIAN, 10), | |
493 | false, false, false), | |
6a2ecd2e JD |
494 | }; |
495 | ||
16e1064f FD |
496 | static_assert(((ARRAY_SIZE(lttng_pollfd_flag_fields) - 1) + POLL_FLAGS_PADDING_SIZE) == sizeof(uint8_t) * BITS_PER_BYTE); |
497 | ||
498 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ | |
499 | ||
500 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_pollfd_flag_fields_struct), | |
501 | PARAMS(lttng_kernel_static_type_struct_init( ARRAY_SIZE(lttng_pollfd_flag_fields), lttng_pollfd_flag_fields, 0))) | |
502 | ||
503 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN | |
437d5aa5 MD |
504 | static const struct lttng_kernel_event_field *lttng_pollfd_fields[] = { |
505 | [0] = lttng_kernel_static_event_field("fd", lttng_kernel_static_type_integer_from_type(int, __BYTE_ORDER, 10), | |
506 | false, false, false), | |
507 | [1] = lttng_kernel_static_event_field("raw_events", lttng_kernel_static_type_integer_from_type(uint16_t, __BYTE_ORDER, 16), | |
508 | false, false, false), | |
509 | [2] = lttng_kernel_static_event_field("events", | |
16e1064f | 510 | (const struct lttng_kernel_type_common *) <tng_pollfd_flag_fields_struct, |
437d5aa5 | 511 | false, false, false), |
6a2ecd2e | 512 | }; |
16e1064f FD |
513 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ |
514 | ||
515 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_pollfd_fields_struct), | |
516 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(lttng_pollfd_fields), lttng_pollfd_fields, 0))) | |
6a2ecd2e | 517 | |
6a2ecd2e | 518 | #endif /* ONCE_LTTNG_TRACE_POLL_H */ |
16e1064f | 519 | #endif /* LTTNG_CREATE_FIELD_METADATA */ |
6a2ecd2e JD |
520 | |
521 | #define LTTNG_SYSCALL_POLL_locvar \ | |
522 | unsigned int fds_length, fds_max_len, alloc_fds; \ | |
523 | struct pollfd *fds; \ | |
524 | uint8_t overflow; | |
525 | ||
526 | #define LTTNG_SYSCALL_POLL_code_pre \ | |
6a2ecd2e JD |
527 | tp_locvar->fds = NULL; \ |
528 | tp_locvar->overflow = 0; \ | |
529 | \ | |
530 | sc_in( \ | |
531 | if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \ | |
532 | tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \ | |
533 | tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \ | |
534 | tp_locvar->overflow = 1; \ | |
535 | } else { \ | |
536 | tp_locvar->fds_length = nfds; \ | |
537 | tp_locvar->fds_max_len = nfds; \ | |
538 | } \ | |
539 | tp_locvar->alloc_fds = tp_locvar->fds_length * sizeof(struct pollfd); \ | |
540 | ) \ | |
541 | /* \ | |
542 | * On exit, the number of active FDs is determined by ret, \ | |
543 | * nfds stays the same as the entry, but we only want to \ | |
544 | * output the FDs that are relevant. \ | |
545 | */ \ | |
546 | sc_out( \ | |
547 | if (ret <= 0 || ret > nfds) \ | |
548 | goto error; \ | |
549 | \ | |
550 | if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \ | |
551 | tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \ | |
552 | tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \ | |
553 | tp_locvar->overflow = 1; \ | |
554 | } else { \ | |
555 | tp_locvar->fds_length = ret; \ | |
556 | tp_locvar->fds_max_len = nfds; \ | |
557 | } \ | |
558 | tp_locvar->alloc_fds = tp_locvar->fds_max_len * sizeof(struct pollfd); \ | |
559 | ) \ | |
560 | { \ | |
561 | int err; \ | |
562 | \ | |
ec85ce1d | 563 | tp_locvar->fds = lttng_tp_mempool_alloc(tp_locvar->alloc_fds); \ |
6a2ecd2e JD |
564 | if (!tp_locvar->fds) \ |
565 | goto error; \ | |
566 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
41a3cca2 | 567 | tp_locvar->fds, ufds, tp_locvar->alloc_fds); \ |
6a2ecd2e JD |
568 | if (err != 0) \ |
569 | goto error; \ | |
570 | } \ | |
571 | goto end; \ | |
572 | \ | |
573 | error: \ | |
574 | tp_locvar->fds_length = 0; \ | |
575 | tp_locvar->fds_max_len = 0; \ | |
576 | end: \ | |
577 | ; | |
578 | ||
579 | #define LTTNG_SYSCALL_POLL_fds_field \ | |
580 | sc_in( \ | |
581 | ctf_custom_field( \ | |
582 | ctf_custom_type( \ | |
437d5aa5 | 583 | lttng_kernel_static_type_sequence("fds_length", \ |
16e1064f | 584 | (const struct lttng_kernel_type_common *) <tng_pollfd_fields_struct, \ |
437d5aa5 MD |
585 | 0, \ |
586 | none) \ | |
6a2ecd2e JD |
587 | ), \ |
588 | fds, \ | |
589 | ctf_custom_code( \ | |
590 | uint32_t i; \ | |
591 | \ | |
592 | ctf_align(int) /* Align on largest field in struct. */ \ | |
593 | for (i = 0; i < tp_locvar->fds_length; i++) { \ | |
594 | ctf_integer_type(int, tp_locvar->fds[i].fd) \ | |
595 | ctf_integer_type(short, tp_locvar->fds[i].events) \ | |
596 | ctf_integer_bitfield_type(uint8_t, \ | |
597 | (uint8_t) tp_locvar->fds[i].events) \ | |
598 | } \ | |
599 | ) \ | |
600 | ) \ | |
601 | ) \ | |
602 | sc_out( \ | |
603 | ctf_custom_field( \ | |
604 | ctf_custom_type( \ | |
437d5aa5 | 605 | lttng_kernel_static_type_sequence("fds_length", \ |
16e1064f | 606 | (const struct lttng_kernel_type_common *) <tng_pollfd_fields_struct, \ |
437d5aa5 MD |
607 | 0, \ |
608 | none) \ | |
6a2ecd2e JD |
609 | ), \ |
610 | fds, \ | |
611 | ctf_custom_code( \ | |
612 | unsigned int i, nr = 0; \ | |
613 | \ | |
614 | ctf_align(int) /* Align on largest field in struct. */ \ | |
615 | /* \ | |
616 | * Iterate over the complete array, but only output \ | |
617 | * "ret" active FDs. \ | |
618 | */ \ | |
619 | for (i = 0; i < tp_locvar->fds_max_len; i++) { \ | |
620 | if (!tp_locvar->fds[i].revents) \ | |
621 | continue; \ | |
622 | if (nr++ >= tp_locvar->fds_length) \ | |
623 | break; \ | |
624 | ctf_integer_type(int, tp_locvar->fds[i].fd) \ | |
625 | ctf_integer_type(short, tp_locvar->fds[i].revents) \ | |
626 | ctf_integer_bitfield_type(uint8_t, \ | |
627 | (uint8_t) tp_locvar->fds[i].revents) \ | |
628 | } \ | |
629 | /* \ | |
630 | * If there is a discrepancy between ret and the \ | |
631 | * content of revents (e.g. caused by userspace corrupting \ | |
632 | * the array from a concurrent thread), we have to output \ | |
633 | * zeros to keep the trace readable. \ | |
634 | */ \ | |
635 | for (i = nr; i < tp_locvar->fds_length; i++) { \ | |
636 | ctf_integer_type(int, 0) \ | |
637 | ctf_integer_type(short, 0) \ | |
638 | ctf_integer_bitfield_type(uint8_t, 0) \ | |
639 | } \ | |
640 | ) \ | |
641 | ) \ | |
642 | ) | |
643 | ||
644 | #define LTTNG_SYSCALL_POLL_code_post \ | |
ec85ce1d | 645 | lttng_tp_mempool_free(tp_locvar->fds); |
6a2ecd2e | 646 | |
a6370148 | 647 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
6a2ecd2e JD |
648 | #define OVERRIDE_32_poll |
649 | #define OVERRIDE_64_poll | |
650 | SC_LTTNG_TRACEPOINT_EVENT_CODE(poll, | |
651 | TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds, | |
652 | unsigned int nfds, int timeout_msecs), | |
653 | TP_ARGS(sc_exit(ret,) ufds, nfds, timeout_msecs), | |
654 | TP_locvar( | |
655 | LTTNG_SYSCALL_POLL_locvar | |
656 | ), | |
657 | TP_code_pre( | |
658 | LTTNG_SYSCALL_POLL_code_pre | |
659 | ), | |
660 | TP_FIELDS( | |
661 | sc_exit(ctf_integer(long, ret, ret)) | |
662 | sc_in(ctf_integer(int, timeout_msecs, timeout_msecs)) | |
663 | sc_inout(ctf_integer(unsigned int, nfds, nfds)) | |
664 | sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
665 | sc_in(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
666 | LTTNG_SYSCALL_POLL_fds_field | |
667 | ), | |
668 | TP_code_post( | |
669 | LTTNG_SYSCALL_POLL_code_post | |
670 | ) | |
671 | ) | |
639655f9 | 672 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
6a2ecd2e JD |
673 | |
674 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
675 | #define OVERRIDE_32_ppoll | |
676 | #define OVERRIDE_64_ppoll | |
677 | SC_LTTNG_TRACEPOINT_EVENT_CODE(ppoll, | |
678 | TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds, | |
679 | unsigned int nfds, struct timespec * tsp, const sigset_t * sigmask, size_t sigsetsize), | |
680 | TP_ARGS(sc_exit(ret,) ufds, nfds, tsp, sigmask, sigsetsize), | |
681 | TP_locvar( | |
682 | LTTNG_SYSCALL_POLL_locvar | |
683 | ), | |
684 | TP_code_pre( | |
685 | LTTNG_SYSCALL_POLL_code_pre | |
686 | ), | |
687 | TP_FIELDS( | |
688 | sc_exit(ctf_integer(long, ret, ret)) | |
689 | sc_in(ctf_integer(struct timespec *, tsp, tsp)) | |
690 | sc_in(ctf_integer(const sigset_t *, sigmask, sigmask)) | |
691 | sc_in(ctf_integer(size_t, sigsetsize, sigsetsize)) | |
692 | sc_inout(ctf_integer(unsigned int, nfds, nfds)) | |
693 | sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
694 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
695 | LTTNG_SYSCALL_POLL_fds_field | |
696 | ), | |
697 | TP_code_post( | |
698 | LTTNG_SYSCALL_POLL_code_post | |
699 | ) | |
700 | ) | |
701 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
702 | ||
45e0ded1 JD |
703 | #include <linux/eventpoll.h> |
704 | ||
705 | SC_LTTNG_TRACEPOINT_ENUM(lttng_epoll_op, | |
706 | TP_ENUM_VALUES( | |
707 | ctf_enum_value("EPOLL_CTL_ADD", EPOLL_CTL_ADD) | |
708 | ctf_enum_value("EPOLL_CTL_DEL", EPOLL_CTL_DEL) | |
709 | ctf_enum_value("EPOLL_CTL_MOD", EPOLL_CTL_MOD) | |
710 | ) | |
711 | ) | |
712 | ||
16e1064f FD |
713 | #ifdef LTTNG_CREATE_FIELD_METADATA |
714 | ||
45e0ded1 JD |
715 | #ifndef ONCE_LTTNG_TRACE_EPOLL_CTL_H |
716 | #define ONCE_LTTNG_TRACE_EPOLL_CTL_H | |
717 | ||
718 | #define LTTNG_EPOLL_NRFLAGS (POLLHUP + 1) | |
719 | #define EPOLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \ | |
720 | ilog2(LTTNG_EPOLL_NRFLAGS - 1) | |
721 | ||
16e1064f | 722 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN |
45e0ded1 JD |
723 | /* |
724 | * Only extract the values specified by iBCS2 for now. | |
725 | */ | |
437d5aa5 | 726 | static const struct lttng_kernel_event_field *lttng_epoll_ctl_events_fields[] = { |
45e0ded1 | 727 | /* 0x0001 */ |
437d5aa5 MD |
728 | [ilog2(POLLIN)] = lttng_kernel_static_event_field("EPOLLIN", |
729 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
730 | false, false, false), | |
45e0ded1 | 731 | /* 0x0002 */ |
437d5aa5 MD |
732 | [ilog2(POLLPRI)] = lttng_kernel_static_event_field("EPOLLPRI", |
733 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
734 | false, false, false), | |
45e0ded1 | 735 | /* 0x0004 */ |
437d5aa5 MD |
736 | [ilog2(POLLOUT)] = lttng_kernel_static_event_field("EPOLLOUT", |
737 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
738 | false, false, false), | |
45e0ded1 | 739 | /* 0x0008 */ |
437d5aa5 MD |
740 | [ilog2(POLLERR)] = lttng_kernel_static_event_field("EPOLLERR", |
741 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
742 | false, false, false), | |
45e0ded1 | 743 | /* 0x0010 */ |
437d5aa5 MD |
744 | [ilog2(POLLHUP)] = lttng_kernel_static_event_field("EPOLLHUP", |
745 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
746 | false, false, false), | |
747 | [ilog2(LTTNG_EPOLL_NRFLAGS)] = lttng_kernel_static_event_field("padding", | |
748 | lttng_kernel_static_type_integer(EPOLL_FLAGS_PADDING_SIZE, 1, 0, __LITTLE_ENDIAN, 10), | |
749 | false, false, false), | |
45e0ded1 | 750 | }; |
16e1064f FD |
751 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ |
752 | ||
753 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_epoll_ctl_events_fields_struct), | |
754 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(lttng_epoll_ctl_events_fields), lttng_epoll_ctl_events_fields, 0))) | |
45e0ded1 | 755 | |
16e1064f | 756 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN |
437d5aa5 MD |
757 | static const struct lttng_kernel_event_field *lttng_epoll_data_fields[] = { |
758 | [0] = lttng_kernel_static_event_field("u64", | |
759 | lttng_kernel_static_type_integer_from_type(uint64_t, __BYTE_ORDER, 16), | |
760 | false, false, false), | |
761 | [1] = lttng_kernel_static_event_field("fd", | |
762 | lttng_kernel_static_type_integer_from_type(int, __BYTE_ORDER, 10), | |
763 | false, false, false), | |
45e0ded1 | 764 | }; |
16e1064f | 765 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ |
45e0ded1 | 766 | |
16e1064f FD |
767 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_epoll_data_fields_struct), |
768 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(lttng_epoll_data_fields), lttng_epoll_data_fields, 0))) | |
769 | ||
770 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN | |
437d5aa5 MD |
771 | static const struct lttng_kernel_event_field *epoll_ctl_fields[] = { |
772 | [0] = lttng_kernel_static_event_field("data_union", | |
16e1064f | 773 | (const struct lttng_kernel_type_common *) <tng_epoll_data_fields_struct, |
437d5aa5 MD |
774 | false, false, false), |
775 | [1] = lttng_kernel_static_event_field("raw_events", | |
776 | lttng_kernel_static_type_integer_from_type(uint32_t, __BYTE_ORDER, 16), | |
777 | false, false, false), | |
778 | [2] = lttng_kernel_static_event_field("events", | |
16e1064f | 779 | (const struct lttng_kernel_type_common *) <tng_epoll_ctl_events_fields_struct, |
437d5aa5 | 780 | false, false, false), |
45e0ded1 | 781 | }; |
16e1064f FD |
782 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ |
783 | ||
784 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct epoll_ctl_fields_struct), | |
785 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(epoll_ctl_fields), epoll_ctl_fields, 0))) | |
786 | ||
45e0ded1 | 787 | #endif /* ONCE_LTTNG_TRACE_EPOLL_CTL_H */ |
16e1064f | 788 | #endif /* LTTNG_CREATE_FIELD_METADATA */ |
45e0ded1 JD |
789 | |
790 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
791 | #define OVERRIDE_32_epoll_ctl | |
792 | #define OVERRIDE_64_epoll_ctl | |
793 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_ctl, | |
794 | TP_PROTO(sc_exit(long ret,) int epfd, int op, int fd, | |
795 | struct epoll_event __user * uevent), | |
796 | TP_ARGS(sc_exit(ret,) epfd, op, fd, uevent), | |
797 | TP_locvar( | |
798 | struct epoll_event event; | |
799 | int err; | |
800 | ), | |
801 | TP_code_pre( | |
802 | tp_locvar->err = lib_ring_buffer_copy_from_user_check_nofault( | |
803 | &tp_locvar->event, uevent, sizeof(struct epoll_event)); | |
804 | ), | |
805 | TP_FIELDS( | |
806 | sc_exit(ctf_integer(long, ret, ret)) | |
807 | sc_in(ctf_integer(int, epfd, epfd)) | |
808 | sc_in(ctf_enum(lttng_epoll_op, int, op_enum, op)) | |
809 | sc_in(ctf_integer(int, fd, fd)) | |
810 | sc_in( | |
811 | ctf_custom_field( | |
812 | ctf_custom_type( | |
437d5aa5 | 813 | lttng_kernel_static_type_struct(ARRAY_SIZE(epoll_ctl_fields), epoll_ctl_fields, 0) |
45e0ded1 JD |
814 | ), |
815 | event, | |
816 | ctf_custom_code( | |
817 | ctf_align(uint64_t) | |
818 | if (!tp_locvar->err) { | |
819 | ctf_integer_type(uint64_t, tp_locvar->event.data) | |
820 | ctf_integer_type(int, tp_locvar->event.data) | |
821 | ctf_integer_bitfield_type(uint32_t, | |
822 | tp_locvar->event.events) | |
823 | ctf_integer_bitfield_type(uint8_t, | |
824 | (uint8_t) tp_locvar->event.events) | |
825 | } else { | |
826 | ctf_integer_type(uint64_t, 0) | |
827 | ctf_integer_type(int, 0) | |
828 | ctf_integer_bitfield_type(uint32_t, 0) | |
829 | ctf_integer_bitfield_type(uint8_t, 0) | |
830 | } | |
831 | ) | |
832 | ) | |
833 | ) | |
834 | ), | |
835 | TP_code_post() | |
836 | ) | |
837 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
838 | ||
16e1064f | 839 | #ifdef LTTNG_CREATE_FIELD_METADATA |
f22697ca JD |
840 | #ifndef ONCE_LTTNG_TRACE_EPOLL_H |
841 | #define ONCE_LTTNG_TRACE_EPOLL_H | |
842 | ||
16e1064f | 843 | #ifndef LTTNG_TRACEPOINT_TYPE_EXTERN |
437d5aa5 MD |
844 | static const struct lttng_kernel_event_field *lttng_epoll_wait_fields[] = lttng_kernel_static_event_field_array( |
845 | [0] = lttng_kernel_static_event_field("data_union", | |
16e1064f | 846 | (const struct lttng_kernel_type_common *) <tng_epoll_data_fields_struct, |
437d5aa5 MD |
847 | false, false, false), |
848 | [1] = lttng_kernel_static_event_field("raw_events", lttng_kernel_static_type_integer_from_type(uint32_t, __BYTE_ORDER, 16), | |
849 | false, false, false), | |
850 | [2] = lttng_kernel_static_event_field("events", | |
16e1064f | 851 | (const struct lttng_kernel_type_common *) <tng_epoll_ctl_events_fields_struct, |
437d5aa5 MD |
852 | false, false, false), |
853 | ); | |
f22697ca | 854 | |
16e1064f FD |
855 | static_assert(((ARRAY_SIZE(lttng_epoll_ctl_events_fields) - 1) + EPOLL_FLAGS_PADDING_SIZE) == sizeof(uint8_t) * BITS_PER_BYTE); |
856 | ||
857 | #endif /* LTTNG_TRACEPOINT_TYPE_EXTERN */ | |
858 | ||
859 | LTTNG_TRACEPOINT_TYPE(PARAMS(const struct lttng_kernel_type_struct lttng_epoll_wait_fields_struct), | |
860 | PARAMS(lttng_kernel_static_type_struct_init(ARRAY_SIZE(lttng_epoll_wait_fields), lttng_epoll_wait_fields, 0))) | |
861 | ||
f22697ca | 862 | #endif /* ONCE_LTTNG_TRACE_EPOLL_H */ |
16e1064f | 863 | #endif /* LTTNG_CREATE_FIELD_METADATA */ |
f22697ca JD |
864 | |
865 | #define LTTNG_SYSCALL_EPOLL_WAIT_locvar \ | |
866 | sc_out( \ | |
867 | unsigned int fds_length; \ | |
868 | uint8_t overflow; \ | |
869 | struct epoll_event *events; \ | |
870 | ) | |
871 | ||
872 | #define LTTNG_SYSCALL_EPOLL_WAIT_code_pre \ | |
f22697ca JD |
873 | sc_out({ \ |
874 | int err; \ | |
875 | unsigned long maxalloc; \ | |
876 | \ | |
877 | tp_locvar->fds_length = 0; \ | |
878 | tp_locvar->events = NULL; \ | |
879 | tp_locvar->overflow = 0; \ | |
880 | \ | |
881 | if (maxevents <= 0 || ret <= 0 || ret > maxevents) \ | |
882 | goto skip_code; \ | |
883 | \ | |
884 | if (maxevents > PAGE_SIZE / sizeof(struct epoll_event)) { \ | |
885 | maxalloc = PAGE_SIZE / sizeof(struct epoll_event); \ | |
886 | } else { \ | |
887 | maxalloc = maxevents; \ | |
888 | } \ | |
889 | \ | |
890 | if (ret > maxalloc) { \ | |
891 | tp_locvar->fds_length = maxalloc; \ | |
892 | tp_locvar->overflow = 1; \ | |
893 | } else { \ | |
894 | tp_locvar->fds_length = ret; \ | |
895 | } \ | |
896 | \ | |
437d5aa5 | 897 | tp_locvar->events = lttng_tp_mempool_alloc( \ |
ec85ce1d | 898 | maxalloc * sizeof(struct epoll_event)); \ |
f22697ca JD |
899 | if (!tp_locvar->events) { \ |
900 | tp_locvar->fds_length = 0; \ | |
901 | goto skip_code; \ | |
902 | } \ | |
903 | \ | |
904 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
905 | tp_locvar->events, uevents, \ | |
41a3cca2 | 906 | maxalloc * sizeof(struct epoll_event)); \ |
f22697ca JD |
907 | if (err != 0) \ |
908 | tp_locvar->fds_length = 0; \ | |
909 | } \ | |
910 | skip_code: \ | |
911 | ) | |
912 | ||
913 | #define LTTNG_SYSCALL_EPOLL_WAIT_fds_field \ | |
914 | ctf_custom_field( \ | |
915 | ctf_custom_type( \ | |
437d5aa5 MD |
916 | lttng_kernel_static_type_sequence("fds_length", \ |
917 | lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_wait_fields), lttng_epoll_wait_fields, 0), \ | |
918 | 0, \ | |
919 | none) \ | |
f22697ca JD |
920 | ), \ |
921 | fds, \ | |
922 | ctf_custom_code( \ | |
923 | uint32_t i; \ | |
924 | \ | |
925 | ctf_align(uint64_t) \ | |
926 | for (i = 0; i < tp_locvar->fds_length; i++) { \ | |
927 | ctf_integer_type(uint64_t, tp_locvar->events[i].data) \ | |
928 | ctf_integer_type(int, tp_locvar->events[i].data) \ | |
929 | ctf_integer_bitfield_type(uint32_t, \ | |
930 | tp_locvar->events[i].events) \ | |
931 | ctf_integer_bitfield_type(uint8_t, \ | |
932 | (uint8_t) tp_locvar->events[i].events) \ | |
933 | } \ | |
934 | ) \ | |
935 | ) | |
936 | ||
937 | #define LTTNG_SYSCALL_EPOLL_WAIT_code_post \ | |
938 | sc_out( \ | |
ec85ce1d | 939 | lttng_tp_mempool_free(tp_locvar->events); \ |
f22697ca JD |
940 | ) |
941 | ||
942 | ||
a6370148 | 943 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
f22697ca JD |
944 | #define OVERRIDE_32_epoll_wait |
945 | #define OVERRIDE_64_epoll_wait | |
946 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_wait, | |
947 | TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents, | |
948 | int maxevents, int timeout), | |
949 | TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout), | |
950 | TP_locvar( | |
951 | LTTNG_SYSCALL_EPOLL_WAIT_locvar | |
952 | ), | |
953 | TP_code_pre( | |
954 | LTTNG_SYSCALL_EPOLL_WAIT_code_pre | |
955 | ), | |
956 | TP_FIELDS( | |
957 | sc_exit(ctf_integer(long, ret, ret)) | |
958 | sc_in(ctf_integer(int, epfd, epfd)) | |
959 | sc_in(ctf_integer(int, maxevents, maxevents)) | |
960 | sc_in(ctf_integer(int, timeout, timeout)) | |
961 | sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
962 | sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
963 | sc_out( | |
964 | LTTNG_SYSCALL_EPOLL_WAIT_fds_field | |
965 | ) | |
966 | ), | |
967 | TP_code_post( | |
968 | LTTNG_SYSCALL_EPOLL_WAIT_code_post | |
969 | ) | |
970 | ) | |
639655f9 | 971 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
f22697ca JD |
972 | |
973 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
974 | #define OVERRIDE_32_epoll_pwait | |
975 | #define OVERRIDE_64_epoll_pwait | |
976 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_pwait, | |
977 | TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents, | |
978 | int maxevents, int timeout, const sigset_t __user * sigmask, size_t sigsetsize), | |
979 | TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout, sigmask, sigsetsize), | |
980 | TP_locvar( | |
981 | LTTNG_SYSCALL_EPOLL_WAIT_locvar | |
982 | ), | |
983 | TP_code_pre( | |
984 | LTTNG_SYSCALL_EPOLL_WAIT_code_pre | |
985 | ), | |
986 | TP_FIELDS( | |
987 | sc_exit(ctf_integer(long, ret, ret)) | |
988 | sc_in(ctf_integer(int, epfd, epfd)) | |
989 | sc_in(ctf_integer(int, maxevents, maxevents)) | |
990 | sc_in(ctf_integer(int, timeout, timeout)) | |
991 | sc_in(ctf_integer_hex(const sigset_t *, sigmask, sigmask)) | |
992 | sc_in(ctf_integer(size_t, sigsetsize, sigsetsize)) | |
993 | sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
994 | sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
995 | sc_out( | |
996 | LTTNG_SYSCALL_EPOLL_WAIT_fds_field | |
997 | ) | |
998 | ), | |
999 | TP_code_post( | |
1000 | LTTNG_SYSCALL_EPOLL_WAIT_code_post | |
1001 | ) | |
1002 | ) | |
1003 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
1004 | ||
771af27e JW |
1005 | #if (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) |
1006 | #define OVERRIDE_32_socketpair | |
1007 | #define OVERRIDE_64_socketpair | |
1008 | SC_LTTNG_TRACEPOINT_EVENT(socketpair, | |
1009 | TP_PROTO(sc_exit(long ret,) int family, int type, int protocol, int *usockvec), | |
1010 | TP_ARGS(sc_exit(ret,) family, type, protocol, usockvec), | |
1011 | TP_FIELDS( | |
1012 | sc_exit(ctf_integer(long, ret, ret)) | |
1013 | sc_in(ctf_integer(int, family, family)) | |
1014 | sc_in(ctf_integer(int, type, type)) | |
1015 | sc_in(ctf_integer(int, protocol, protocol)) | |
1016 | sc_out(ctf_user_array(int, socket, usockvec, 2)) | |
1017 | ) | |
1018 | ) | |
1019 | #endif /* (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
1020 | ||
c8dfb724 GB |
1021 | /* |
1022 | * Enumeration of the open flags, as described in the 'open' | |
1023 | * system call man page. | |
1024 | */ | |
1025 | SC_LTTNG_TRACEPOINT_ENUM(lttng_file_status_flags, | |
1026 | TP_ENUM_VALUES( | |
1027 | ctf_enum_value("O_RDONLY", O_RDONLY) | |
1028 | ctf_enum_value("O_WRONLY", O_WRONLY) | |
1029 | ctf_enum_value("O_RDWR", O_RDWR) | |
1030 | ctf_enum_value("O_CREAT", O_CREAT) | |
1031 | ctf_enum_value("O_EXCL", O_EXCL) | |
1032 | ctf_enum_value("O_NOCTTY", O_NOCTTY) | |
1033 | ctf_enum_value("O_TRUNC", O_TRUNC) | |
1034 | ctf_enum_value("O_APPEND", O_APPEND) | |
1035 | ctf_enum_value("O_NONBLOCK", O_NONBLOCK) | |
1036 | ctf_enum_value("O_DSYNC", O_DSYNC) | |
1037 | ctf_enum_value("FASYNC", FASYNC) | |
1038 | ctf_enum_value("O_DIRECT", O_DIRECT) | |
1039 | ctf_enum_value("O_LARGEFILE", O_LARGEFILE) | |
1040 | ctf_enum_value("O_DIRECTORY", O_DIRECTORY) | |
1041 | ctf_enum_value("O_NOFOLLOW", O_NOFOLLOW) | |
1042 | ctf_enum_value("O_NOATIME", O_NOATIME) | |
1043 | ctf_enum_value("O_CLOEXEC", O_CLOEXEC) | |
1044 | ctf_enum_value("O_SYNC", __O_SYNC) | |
1045 | ctf_enum_value("O_PATH", O_PATH) | |
5f4c791e | 1046 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0)) |
c8dfb724 | 1047 | ctf_enum_value("O_TMPFILE", __O_TMPFILE) |
5f4c791e | 1048 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0)) */ |
c8dfb724 GB |
1049 | ) |
1050 | ) | |
1051 | ||
1052 | /* | |
1053 | * Enumeration of the open flags, as described in the 'open' | |
1054 | * system call man page. | |
1055 | */ | |
1056 | SC_LTTNG_TRACEPOINT_ENUM(lttng_file_mode, | |
1057 | TP_ENUM_VALUES( | |
1058 | ctf_enum_value("S_IRWXU", S_IRWXU) | |
1059 | ctf_enum_value("S_IRUSR", S_IRUSR) | |
1060 | ctf_enum_value("S_IWUSR", S_IWUSR) | |
1061 | ctf_enum_value("S_IXUSR", S_IXUSR) | |
1062 | ctf_enum_value("S_IRWXG", S_IRWXG) | |
1063 | ctf_enum_value("S_IRGRP", S_IRGRP) | |
1064 | ctf_enum_value("S_IWGRP", S_IWGRP) | |
1065 | ctf_enum_value("S_IXGRP", S_IXGRP) | |
1066 | ctf_enum_value("S_IRWXO", S_IRWXO) | |
1067 | ctf_enum_value("S_IROTH", S_IROTH) | |
1068 | ctf_enum_value("S_IWOTH", S_IWOTH) | |
1069 | ctf_enum_value("S_IXOTH", S_IXOTH) | |
1070 | ctf_enum_value("S_ISUID", S_ISUID) | |
1071 | ctf_enum_value("S_ISGID", S_ISGID) | |
1072 | ctf_enum_value("S_ISVTX", S_ISVTX) | |
1073 | ) | |
1074 | ) | |
1075 | ||
1076 | #define OVERRIDE_32_openat | |
1077 | #define OVERRIDE_64_openat | |
1078 | SC_LTTNG_TRACEPOINT_EVENT(openat, | |
1079 | TP_PROTO(sc_exit(long ret,) int dfd, const char * filename, int flags, umode_t mode), | |
1080 | TP_ARGS(sc_exit(ret,) dfd, filename, flags, mode), | |
1081 | TP_FIELDS( | |
1082 | sc_exit(ctf_integer(long, ret, ret)) | |
1083 | sc_in(ctf_integer(int, dfd, dfd)) | |
1084 | sc_in(ctf_user_string(filename, filename)) | |
1085 | sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) | |
1086 | sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) | |
1087 | ) | |
1088 | ) | |
1089 | ||
1090 | #define OVERRIDE_32_open | |
1091 | #define OVERRIDE_64_open | |
1092 | SC_LTTNG_TRACEPOINT_EVENT(open, | |
1093 | TP_PROTO(sc_exit(long ret,) const char * filename, int flags, umode_t mode), | |
1094 | TP_ARGS(sc_exit(ret,) filename, flags, mode), | |
1095 | TP_FIELDS( | |
1096 | sc_exit(ctf_integer(long, ret, ret)) | |
1097 | sc_in(ctf_user_string(filename, filename)) | |
1098 | sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) | |
1099 | sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) | |
1100 | ) | |
1101 | ) | |
1102 | ||
e42e81fd | 1103 | #endif /* CREATE_SYSCALL_TABLE */ |