projects / lttng-modules.git / blame
| Commit | Line | Data |
|---|---|---|
| b7cdc182 | 1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) */ |
| 6314c2d3 | 2 | |
| e42e81fd MD |
3 | #ifndef CREATE_SYSCALL_TABLE |
| 4 | ||
| 769ad370 MD |
5 | #define OVERRIDE_32_execve |
| 6 | #define OVERRIDE_64_execve | |
| cb3ef14c | 7 | SC_LTTNG_TRACEPOINT_EVENT(execve, |
| e17f92ba MD |
8 | TP_PROTO(sc_exit(long ret,) const char *filename, char *const *argv, char *const *envp), |
| 9 | TP_ARGS(sc_exit(ret,) filename, argv, envp), | |
| 57ede728 MD |
10 | TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) |
| 11 | sc_in(ctf_user_string(filename, filename)) | |
| 12 | sc_in(ctf_integer_hex(char *const *, argv, argv)) | |
| 13 | sc_in(ctf_integer_hex(char *const *, envp, envp)) | |
| 14 | ) | |
| e42e81fd MD |
15 | ) |
| 16 | ||
| d775625e GB |
17 | /* |
| 18 | * Clone()'s `flags` field has two parts: | |
| 19 | * 1. exit signal: the least significant byte of the `unsigned long` is | |
| 20 | * the signal the kernel must send to the parent process on child | |
| 21 | * exit, | |
| 22 | * 2. clone options: the remaining bytes of the `unsigned long` is used a | |
| 23 | * bitwise flag for the clone options. | |
| 24 | */ | |
| 25 | #define CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS 8 | |
| 26 | #define LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(x) ((x) >> CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS) | |
| 27 | ||
| 28 | SC_LTTNG_TRACEPOINT_ENUM(lttng_clone_exit_signal_flags, | |
| 29 | TP_ENUM_VALUES( | |
| 30 | ctf_enum_value("SIGHUP", SIGHUP) | |
| 31 | ctf_enum_value("SIGINT", SIGINT) | |
| 32 | ctf_enum_value("SIGQUIT", SIGQUIT) | |
| 33 | ctf_enum_value("SIGILL", SIGILL) | |
| 34 | ctf_enum_value("SIGTRAP", SIGTRAP) | |
| 35 | ctf_enum_value("SIGABRT", SIGABRT) | |
| 36 | ctf_enum_value("SIGIOT", SIGIOT) | |
| 37 | ctf_enum_value("SIGBUS", SIGBUS) | |
| 38 | #ifdef SIGEMT | |
| 39 | ctf_enum_value("SIGEMT", SIGEMT) | |
| 40 | #endif /* #ifdef SIGEMT */ | |
| 41 | ctf_enum_value("SIGFPE", SIGFPE) | |
| 42 | ctf_enum_value("SIGKILL", SIGKILL) | |
| 43 | ctf_enum_value("SIGUSR1", SIGUSR1) | |
| 44 | ctf_enum_value("SIGSEGV", SIGSEGV) | |
| 45 | ctf_enum_value("SIGUSR2", SIGUSR2) | |
| 46 | ctf_enum_value("SIGPIPE", SIGPIPE) | |
| 47 | ctf_enum_value("SIGALRM", SIGALRM) | |
| 48 | ctf_enum_value("SIGTERM", SIGTERM) | |
| 49 | #ifdef SIGSTKFLT | |
| 50 | ctf_enum_value("SIGSTKFLT", SIGSTKFLT) | |
| 51 | #endif /* #ifdef SIGSTKFLT */ | |
| 52 | ctf_enum_value("SIGCHLD", SIGCHLD) | |
| 53 | #ifdef SIGCLD | |
| 54 | ctf_enum_value("SIGCLD", SIGCLD) | |
| 55 | #endif /* #ifdef SIGCLD */ | |
| 56 | ctf_enum_value("SIGCONT", SIGCONT) | |
| 57 | ctf_enum_value("SIGSTOP", SIGSTOP) | |
| 58 | ctf_enum_value("SIGTSTP", SIGTSTP) | |
| 59 | ctf_enum_value("SIGTTIN", SIGTTIN) | |
| 60 | ctf_enum_value("SIGTTOU", SIGTTOU) | |
| 61 | ctf_enum_value("SIGURG", SIGURG) | |
| 62 | ctf_enum_value("SIGXCPU", SIGXCPU) | |
| 63 | ctf_enum_value("SIGXFSZ", SIGXFSZ) | |
| 64 | ctf_enum_value("SIGVTALR", SIGVTALRM) | |
| 65 | ctf_enum_value("SIGPROF", SIGPROF) | |
| 66 | ctf_enum_value("SIGWINCH", SIGWINCH) | |
| 67 | ctf_enum_value("SIGIO", SIGIO) | |
| 68 | ctf_enum_value("SIGPOLL", SIGPOLL) | |
| 69 | ctf_enum_value("SIGPWR", SIGPWR) | |
| 70 | #ifdef SIGINFO | |
| 71 | ctf_enum_value("SIGINFO", SIGINFO) | |
| 72 | #endif /* #ifdef SIGINFO */ | |
| 73 | #ifdef SIGLOST | |
| 74 | ctf_enum_value("SIGLOST", SIGLOST) | |
| 75 | #endif /* #ifdef SIGLOST */ | |
| 76 | ctf_enum_value("SIGSYS", SIGSYS) | |
| 77 | #ifdef SIGUNUSED | |
| 78 | ctf_enum_value("SIGUNUSED", SIGUNUSED) | |
| 79 | #endif /* #ifdef SIGUNUSED */ | |
| 80 | ) | |
| 81 | ) | |
| 82 | ||
| 83 | SC_LTTNG_TRACEPOINT_ENUM(lttng_clone_option_flags, | |
| 84 | TP_ENUM_VALUES( | |
| 85 | ctf_enum_value("CLONE_CHILD_CLEARTID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CHILD_CLEARTID)) | |
| 86 | ctf_enum_value("CLONE_CHILD_SETTID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CHILD_SETTID)) | |
| 5f4c791e | 87 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,5,0)) |
| d775625e | 88 | ctf_enum_value("CLONE_CLEAR_SIGHAND", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_CLEAR_SIGHAND)) |
| 5f4c791e | 89 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,5,0)) */ |
| d775625e GB |
90 | ctf_enum_value("CLONE_DETACHED", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_DETACHED)) |
| 91 | ctf_enum_value("CLONE_FILES", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_FILES)) | |
| 92 | ctf_enum_value("CLONE_FS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_FS)) | |
| 93 | ctf_enum_value("CLONE_IO", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_IO)) | |
| 5f4c791e | 94 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) |
| d775625e | 95 | ctf_enum_value("CLONE_NEWCGROUP", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWCGROUP)) |
| 5f4c791e | 96 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,6,0)) */ |
| d775625e GB |
97 | ctf_enum_value("CLONE_NEWIPC", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWIPC)) |
| 98 | ctf_enum_value("CLONE_NEWNET", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWNET)) | |
| 99 | ctf_enum_value("CLONE_NEWNS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWNS)) | |
| 100 | ctf_enum_value("CLONE_NEWPID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWPID)) | |
| 101 | ctf_enum_value("CLONE_NEWUSER", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWUSER)) | |
| 102 | ctf_enum_value("CLONE_NEWUTS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_NEWUTS)) | |
| 103 | ctf_enum_value("CLONE_PARENT", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PARENT)) | |
| 104 | ctf_enum_value("CLONE_PARENT_SETTID", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PARENT_SETTID)) | |
| 5f4c791e | 105 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,2,0)) |
| d775625e | 106 | ctf_enum_value("CLONE_PIDFD", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PIDFD)) |
| 5f4c791e | 107 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,2,0)) */ |
| d775625e GB |
108 | ctf_enum_value("CLONE_PTRACE", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_PTRACE)) |
| 109 | ctf_enum_value("CLONE_SETTLS", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_SETTLS)) | |
| 110 | ctf_enum_value("CLONE_SIGHAND", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_SIGHAND)) | |
| 111 | ctf_enum_value("CLONE_SYSVSEM", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_SYSVSEM)) | |
| 112 | ctf_enum_value("CLONE_THREAD", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_THREAD)) | |
| 113 | ctf_enum_value("CLONE_UNTRACED", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_UNTRACED)) | |
| 114 | ctf_enum_value("CLONE_VFORK", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_VFORK)) | |
| 115 | ctf_enum_value("CLONE_VM", LTTNG_CLONE_OPTIONS_FLAGS_TO_CTF(CLONE_VM)) | |
| 116 | ) | |
| 117 | ) | |
| 118 | ||
| 119 | #define LTTNG_CLONE_FLAGS_EXIT_SIGNAL \ | |
| 437d5aa5 MD |
120 | lttng_kernel_static_event_field("exit_signal", \ |
| 121 | lttng_kernel_static_type_enum(&__enum_lttng_clone_exit_signal_flags, \ | |
| 122 | lttng_kernel_static_type_integer(CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS, \ | |
| 123 | 1, 0, __BYTE_ORDER, 16)), \ | |
| 124 | false, false, false) | |
| d775625e GB |
125 | |
| 126 | #define LTTNG_CLONE_FLAGS_OPTIONS \ | |
| 437d5aa5 MD |
127 | lttng_kernel_static_event_field("options", \ |
| 128 | lttng_kernel_static_type_enum(&__enum_lttng_clone_option_flags, \ | |
| 129 | lttng_kernel_static_type_integer( \ | |
| 130 | sizeof(unsigned long) * CHAR_BIT - CLONE_EXIT_SIGNAL_FLAG_RESERVED_BITS, \ | |
| 131 | 1, 0, __BYTE_ORDER, 16)), \ | |
| 132 | false, false, false) | |
| d775625e GB |
133 | |
| 134 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
| 135 | #define LTTNG_CLONE_FLAGS \ | |
| 437d5aa5 | 136 | lttng_kernel_static_event_field_array( \ |
| d775625e | 137 | [0] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, \ |
| 437d5aa5 MD |
138 | [1] = LTTNG_CLONE_FLAGS_OPTIONS, \ |
| 139 | ) | |
| d775625e GB |
140 | #else |
| 141 | #define LTTNG_CLONE_FLAGS \ | |
| 437d5aa5 | 142 | lttng_kernel_static_event_field_array( \ |
| d775625e | 143 | [0] = LTTNG_CLONE_FLAGS_OPTIONS, \ |
| 437d5aa5 MD |
144 | [1] = LTTNG_CLONE_FLAGS_EXIT_SIGNAL, \ |
| 145 | ) | |
| d775625e GB |
146 | #endif |
| 147 | ||
| 148 | ||
| 769ad370 MD |
149 | #define OVERRIDE_32_clone |
| 150 | #define OVERRIDE_64_clone | |
| cb3ef14c | 151 | SC_LTTNG_TRACEPOINT_EVENT(clone, |
| e17f92ba | 152 | TP_PROTO(sc_exit(long ret,) unsigned long clone_flags, unsigned long newsp, |
| ba21566b | 153 | void __user *parent_tid, |
| b5aa4b6a | 154 | void __user *child_tid), |
| e17f92ba | 155 | TP_ARGS(sc_exit(ret,) clone_flags, newsp, parent_tid, child_tid), |
| 57ede728 MD |
156 | TP_FIELDS( |
| 157 | sc_exit(ctf_integer(long, ret, ret)) | |
| d775625e GB |
158 | sc_in( |
| 159 | ctf_custom_field( | |
| 160 | ctf_custom_type( | |
| 437d5aa5 | 161 | lttng_kernel_static_type_struct(2, LTTNG_CLONE_FLAGS, lttng_alignof(unsigned long) * CHAR_BIT) |
| d775625e GB |
162 | ), |
| 163 | flags, | |
| 164 | ctf_custom_code( | |
| d1f63533 | 165 | ctf_integer_type(unsigned long, clone_flags) |
| d775625e GB |
166 | ) |
| 167 | ) | |
| 168 | ) | |
| 57ede728 MD |
169 | sc_in(ctf_integer_hex(unsigned long, newsp, newsp)) |
| 170 | sc_in(ctf_integer_hex(void *, parent_tid, parent_tid)) | |
| 171 | sc_in(ctf_integer_hex(void *, child_tid, child_tid)) | |
| 172 | ) | |
| ba21566b MD |
173 | ) |
| 174 | ||
| b5aa4b6a | 175 | /* present in 32, missing in 64 due to old kernel headers */ |
| 644d6e9c MD |
176 | #define OVERRIDE_32_getcpu |
| 177 | #define OVERRIDE_64_getcpu | |
| cb3ef14c | 178 | SC_LTTNG_TRACEPOINT_EVENT(getcpu, |
| e17f92ba MD |
179 | TP_PROTO(sc_exit(long ret,) unsigned __user *cpup, unsigned __user *nodep, void *tcache), |
| 180 | TP_ARGS(sc_exit(ret,) cpup, nodep, tcache), | |
| 57ede728 MD |
181 | TP_FIELDS( |
| 182 | sc_exit(ctf_integer(long, ret, ret)) | |
| 183 | sc_out(ctf_integer_hex(unsigned *, cpup, cpup)) | |
| 184 | sc_out(ctf_integer_hex(unsigned *, nodep, nodep)) | |
| 185 | sc_inout(ctf_integer_hex(void *, tcache, tcache)) | |
| 186 | ) | |
| b5aa4b6a MD |
187 | ) |
| 188 | ||
| af44bd3a MD |
189 | #define OVERRIDE_32_pipe2 |
| 190 | #define OVERRIDE_64_pipe2 | |
| cb3ef14c | 191 | SC_LTTNG_TRACEPOINT_EVENT(pipe2, |
| af44bd3a MD |
192 | TP_PROTO(sc_exit(long ret,) int * fildes, int flags), |
| 193 | TP_ARGS(sc_exit(ret,) fildes, flags), | |
| 57ede728 MD |
194 | TP_FIELDS(sc_exit(ctf_integer(long, ret, ret)) |
| 195 | sc_out(ctf_user_array(int, fildes, fildes, 2)) | |
| 196 | sc_in(ctf_integer(int, flags, flags)) | |
| 197 | ) | |
| af44bd3a MD |
198 | ) |
| 199 | ||
| 29751f7c JD |
200 | #define LTTNG_SYSCALL_SELECT_locvar \ |
| 201 | unsigned long *fds_in, *fds_out, *fds_ex; \ | |
| 202 | unsigned long nr_bytes, nr_ulong; \ | |
| 203 | uint8_t overflow; | |
| 204 | ||
| 205 | #define LTTNG_SYSCALL_SELECT_code_pre \ | |
| 206 | sc_inout( \ | |
| 207 | { \ | |
| 208 | int err; \ | |
| 209 | unsigned int n_in_bytes; \ | |
| 210 | \ | |
| 211 | tp_locvar->fds_in = NULL; \ | |
| 212 | tp_locvar->fds_out = NULL; \ | |
| 213 | tp_locvar->fds_ex = NULL; \ | |
| 214 | tp_locvar->overflow = 0; \ | |
| 215 | \ | |
| 216 | sc_out( \ | |
| 217 | if (ret <= 0) \ | |
| 218 | goto error; \ | |
| 219 | ) \ | |
| 220 | \ | |
| 221 | if (n <= 0) \ | |
| 222 | goto error; \ | |
| 223 | \ | |
| 224 | /* On error or bogus input, don't copy anything. */ \ | |
| 225 | if (n >__FD_SETSIZE) \ | |
| 226 | goto error; \ | |
| 227 | \ | |
| 228 | n_in_bytes = DIV_ROUND_UP((unsigned int) n, BITS_PER_BYTE); \ | |
| 229 | \ | |
| 230 | /* \ | |
| 231 | * Limit atomic memory allocation to one page, since n \ | |
| 232 | * is limited to 1024 and the smallest page size on Linux \ | |
| 233 | * is 4k, this should not happen, don't try to make it work. \ | |
| 234 | */ \ | |
| 235 | if (n_in_bytes > PAGE_SIZE) { \ | |
| 236 | WARN_ON_ONCE(1); \ | |
| 237 | /* Inform the user that we did not output everything. */ \ | |
| 238 | tp_locvar->overflow = 1; \ | |
| 239 | goto error; \ | |
| 240 | } else { \ | |
| 241 | tp_locvar->nr_bytes = n_in_bytes; \ | |
| 242 | tp_locvar->nr_ulong = DIV_ROUND_UP(n_in_bytes, \ | |
| 243 | sizeof(unsigned long)); \ | |
| 244 | } \ | |
| 245 | \ | |
| 246 | if (inp) { \ | |
| ec85ce1d JD |
247 | tp_locvar->fds_in = lttng_tp_mempool_alloc( \ |
| 248 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
| 29751f7c JD |
249 | if (!tp_locvar->fds_in) \ |
| 250 | goto error; \ | |
| 251 | \ | |
| 252 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
| 253 | tp_locvar->fds_in, inp, \ | |
| 254 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
| 255 | if (err != 0) \ | |
| 256 | goto error; \ | |
| 257 | } \ | |
| 258 | if (outp) { \ | |
| ec85ce1d JD |
259 | tp_locvar->fds_out = lttng_tp_mempool_alloc( \ |
| 260 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
| 29751f7c JD |
261 | if (!tp_locvar->fds_out) \ |
| 262 | goto error; \ | |
| 263 | \ | |
| 264 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
| 265 | tp_locvar->fds_out, outp, \ | |
| 266 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
| 267 | if (err != 0) \ | |
| 268 | goto error; \ | |
| 269 | } \ | |
| 270 | if (exp) { \ | |
| ec85ce1d JD |
271 | tp_locvar->fds_ex = lttng_tp_mempool_alloc( \ |
| 272 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
| 29751f7c JD |
273 | if (!tp_locvar->fds_ex) \ |
| 274 | goto error; \ | |
| 275 | \ | |
| 276 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
| 277 | tp_locvar->fds_ex, exp, \ | |
| 278 | tp_locvar->nr_ulong * sizeof(unsigned long)); \ | |
| 279 | if (err != 0) \ | |
| 280 | goto error; \ | |
| 281 | } \ | |
| 282 | goto end; \ | |
| 283 | \ | |
| 284 | error: \ | |
| 285 | tp_locvar->nr_bytes = 0; \ | |
| 286 | tp_locvar->nr_ulong = 0; \ | |
| 287 | end: ; /* Label at end of compound statement. */ \ | |
| 288 | } \ | |
| 289 | ) | |
| 290 | ||
| 291 | #define LTTNG_SYSCALL_SELECT_fds_field_LE(name, input) \ | |
| 292 | ctf_custom_field( \ | |
| 293 | ctf_custom_type( \ | |
| 437d5aa5 | 294 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 10) \ |
| 29751f7c | 295 | ), \ |
| ceabb767 | 296 | _ ## name ## _length, \ |
| 29751f7c | 297 | ctf_custom_code( \ |
| 29751f7c JD |
298 | if (input) { \ |
| 299 | ctf_integer_type(uint8_t, tp_locvar->nr_bytes) \ | |
| 300 | ctf_align(uint8_t) \ | |
| 301 | } else { \ | |
| 302 | ctf_integer_type(uint8_t, 0) \ | |
| 303 | ctf_align(uint8_t) \ | |
| 29751f7c | 304 | } \ |
| ceabb767 MD |
305 | ) \ |
| 306 | ) \ | |
| 307 | ctf_custom_field( \ | |
| 308 | ctf_custom_type( \ | |
| 51ef4536 | 309 | lttng_kernel_static_type_sequence(NULL, \ |
| 437d5aa5 MD |
310 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 16), \ |
| 311 | 0, \ | |
| 312 | none) \ | |
| ceabb767 MD |
313 | ), \ |
| 314 | name, \ | |
| 315 | ctf_custom_code( \ | |
| 316 | unsigned int src; \ | |
| 317 | unsigned int nr_bytes_out = 0; \ | |
| 318 | \ | |
| 319 | if (!input) \ | |
| 320 | goto skip_##name; \ | |
| 29751f7c JD |
321 | \ |
| 322 | for (src = 0; src < tp_locvar->nr_ulong; src++) { \ | |
| 323 | int dst; \ | |
| 324 | for (dst = 0; dst < sizeof(long); dst++) { \ | |
| 325 | if (nr_bytes_out++ >= tp_locvar->nr_bytes) { \ | |
| 326 | goto skip_##name; \ | |
| 327 | } \ | |
| 328 | ctf_user_integer_type(uint8_t, \ | |
| 329 | ((uint8_t __user *) (input->fds_bits + src))[dst]); \ | |
| 330 | } \ | |
| 331 | } \ | |
| 332 | skip_##name: ; \ | |
| 333 | ) \ | |
| 334 | ) | |
| 335 | ||
| 336 | #define LTTNG_SYSCALL_SELECT_fds_field_BE(name, input) \ | |
| 337 | ctf_custom_field( \ | |
| 338 | ctf_custom_type( \ | |
| 437d5aa5 | 339 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 10) \ |
| 29751f7c | 340 | ), \ |
| ceabb767 | 341 | _ ## name ## _length, \ |
| 29751f7c | 342 | ctf_custom_code( \ |
| 29751f7c JD |
343 | if (input) { \ |
| 344 | ctf_integer_type(uint8_t, tp_locvar->nr_bytes) \ | |
| 345 | ctf_align(uint8_t) \ | |
| 346 | } else { \ | |
| 347 | ctf_integer_type(uint8_t, 0) \ | |
| 348 | ctf_align(uint8_t) \ | |
| 29751f7c | 349 | } \ |
| ceabb767 MD |
350 | ) \ |
| 351 | ) \ | |
| 352 | ctf_custom_field( \ | |
| 353 | ctf_custom_type( \ | |
| 51ef4536 | 354 | lttng_kernel_static_type_sequence(NULL, \ |
| 437d5aa5 MD |
355 | lttng_kernel_static_type_integer_from_type(uint8_t, __BYTE_ORDER, 16), \ |
| 356 | 0, \ | |
| 357 | none) \ | |
| ceabb767 MD |
358 | ), \ |
| 359 | name, \ | |
| 360 | ctf_custom_code( \ | |
| 361 | unsigned int src, nr_bytes_out = 0; \ | |
| 362 | \ | |
| 363 | if (!input) \ | |
| 364 | goto skip_##name; \ | |
| 29751f7c JD |
365 | \ |
| 366 | for (src = 0; src < tp_locvar->nr_ulong; src++) { \ | |
| 367 | int dst; \ | |
| 368 | for (dst = sizeof(long); dst >= 0; dst--) { \ | |
| 369 | if (nr_bytes_out++ >= tp_locvar->nr_bytes) { \ | |
| 370 | goto skip_##name; \ | |
| 371 | } \ | |
| 372 | ctf_user_integer_type(uint8_t, \ | |
| 373 | ((uint8_t __user *) (input->fds_bits + src))[dst]); \ | |
| 374 | } \ | |
| 375 | } \ | |
| 376 | skip_##name: ; \ | |
| 377 | ) \ | |
| 378 | ) | |
| 379 | ||
| 380 | #define LTTNG_SYSCALL_SELECT_code_post \ | |
| ec85ce1d JD |
381 | lttng_tp_mempool_free(tp_locvar->fds_in); \ |
| 382 | lttng_tp_mempool_free(tp_locvar->fds_out); \ | |
| 383 | lttng_tp_mempool_free(tp_locvar->fds_ex); | |
| 29751f7c | 384 | |
| a6370148 | 385 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
| 29751f7c JD |
386 | #define OVERRIDE_32_select |
| 387 | #define OVERRIDE_64_select | |
| 388 | SC_LTTNG_TRACEPOINT_EVENT_CODE(select, | |
| 389 | TP_PROTO(sc_exit(long ret,) int n, fd_set __user *inp, fd_set __user *outp, | |
| 390 | fd_set __user *exp, struct timeval *tvp), | |
| 391 | TP_ARGS(sc_exit(ret,) n, inp, outp, exp, tvp), | |
| 392 | TP_locvar( | |
| 393 | LTTNG_SYSCALL_SELECT_locvar | |
| 394 | ), | |
| 395 | TP_code_pre( | |
| 396 | LTTNG_SYSCALL_SELECT_code_pre | |
| 397 | ), | |
| 398 | TP_FIELDS( | |
| 399 | sc_exit(ctf_integer(long, ret, ret)) | |
| 400 | sc_in(ctf_integer(int, n, n)) | |
| 401 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
| 402 | sc_inout(ctf_integer(struct timeval *, tvp, tvp)) | |
| 403 | ||
| 404 | sc_inout( | |
| 405 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
| 406 | LTTNG_SYSCALL_SELECT_fds_field_LE(readfds, inp) | |
| 407 | LTTNG_SYSCALL_SELECT_fds_field_LE(writefds, outp) | |
| 408 | LTTNG_SYSCALL_SELECT_fds_field_LE(exceptfds, exp) | |
| 409 | #else | |
| 410 | LTTNG_SYSCALL_SELECT_fds_field_BE(readfds, inp) | |
| 411 | LTTNG_SYSCALL_SELECT_fds_field_BE(writefds, outp) | |
| 412 | LTTNG_SYSCALL_SELECT_fds_field_BE(exceptfds, exp) | |
| 413 | #endif | |
| 414 | ) | |
| 415 | ), | |
| 416 | TP_code_post( | |
| 417 | LTTNG_SYSCALL_SELECT_code_post | |
| 418 | ) | |
| 419 | ) | |
| 639655f9 | 420 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
| 29751f7c JD |
421 | |
| 422 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
| 423 | #define OVERRIDE_32_pselect6 | |
| 424 | #define OVERRIDE_64_pselect6 | |
| 425 | SC_LTTNG_TRACEPOINT_EVENT_CODE(pselect6, | |
| 426 | TP_PROTO(sc_exit(long ret,) int n, fd_set __user * inp, fd_set __user * outp, | |
| 427 | fd_set __user * exp, struct timeval __user * tvp, void __user * sig), | |
| 428 | TP_ARGS(sc_exit(ret,) n, inp, outp, exp, tvp, sig), | |
| 429 | TP_locvar( | |
| 430 | LTTNG_SYSCALL_SELECT_locvar | |
| 431 | ), | |
| 432 | TP_code_pre( | |
| 433 | LTTNG_SYSCALL_SELECT_code_pre | |
| 434 | ), | |
| 435 | TP_FIELDS( | |
| 436 | sc_exit(ctf_integer(long, ret, ret)) | |
| 437 | sc_in(ctf_integer(int, n, n)) | |
| 438 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
| 439 | sc_inout(ctf_integer(struct timeval *, tvp, tvp)) | |
| 440 | sc_in(ctf_integer_hex(void *, sig, sig)) | |
| 441 | ||
| 442 | sc_inout( | |
| 443 | #if (__BYTE_ORDER == __LITTLE_ENDIAN) | |
| 444 | LTTNG_SYSCALL_SELECT_fds_field_LE(readfds, inp) | |
| 445 | LTTNG_SYSCALL_SELECT_fds_field_LE(writefds, outp) | |
| 446 | LTTNG_SYSCALL_SELECT_fds_field_LE(exceptfds, exp) | |
| 447 | #else | |
| 448 | LTTNG_SYSCALL_SELECT_fds_field_BE(readfds, inp) | |
| 449 | LTTNG_SYSCALL_SELECT_fds_field_BE(writefds, outp) | |
| 450 | LTTNG_SYSCALL_SELECT_fds_field_BE(exceptfds, exp) | |
| 451 | #endif | |
| 452 | ) | |
| 453 | ), | |
| 454 | TP_code_post( | |
| 455 | LTTNG_SYSCALL_SELECT_code_post | |
| 456 | ) | |
| 457 | ) | |
| 458 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
| 459 | ||
| 6a2ecd2e JD |
460 | #ifndef ONCE_LTTNG_TRACE_POLL_H |
| 461 | #define ONCE_LTTNG_TRACE_POLL_H | |
| 462 | ||
| 463 | #define LTTNG_POLL_NRFLAGS (POLLNVAL + 1) | |
| 464 | #define POLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \ | |
| 465 | ilog2(LTTNG_POLL_NRFLAGS - 1) | |
| 466 | ||
| 467 | /* | |
| 468 | * Only extract the values specified by iBCS2 for now. | |
| 469 | */ | |
| 437d5aa5 MD |
470 | static const struct lttng_kernel_event_field *lttng_pollfd_flag_fields[] = { |
| 471 | [ilog2(POLLIN)] = lttng_kernel_static_event_field("POLLIN", | |
| 472 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 473 | false, false, false), | |
| 474 | [ilog2(POLLPRI)] = lttng_kernel_static_event_field("POLLPRI", | |
| 475 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 476 | false, false, false), | |
| 477 | [ilog2(POLLOUT)] = lttng_kernel_static_event_field("POLLOUT", | |
| 478 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 479 | false, false, false), | |
| 480 | [ilog2(POLLERR)] = lttng_kernel_static_event_field("POLLERR", | |
| 481 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 482 | false, false, false), | |
| 483 | [ilog2(POLLHUP)] = lttng_kernel_static_event_field("POLLHUP", | |
| 484 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 485 | false, false, false), | |
| 486 | [ilog2(POLLNVAL)] = lttng_kernel_static_event_field("POLLNVAL", | |
| 487 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 488 | false, false, false), | |
| 489 | [ilog2(LTTNG_POLL_NRFLAGS)] = lttng_kernel_static_event_field("padding", | |
| 490 | lttng_kernel_static_type_integer(POLL_FLAGS_PADDING_SIZE, 1, 0, __LITTLE_ENDIAN, 10), | |
| 491 | false, false, false), | |
| 6a2ecd2e JD |
492 | }; |
| 493 | ||
| 437d5aa5 MD |
494 | static const struct lttng_kernel_event_field *lttng_pollfd_fields[] = { |
| 495 | [0] = lttng_kernel_static_event_field("fd", lttng_kernel_static_type_integer_from_type(int, __BYTE_ORDER, 10), | |
| 496 | false, false, false), | |
| 497 | [1] = lttng_kernel_static_event_field("raw_events", lttng_kernel_static_type_integer_from_type(uint16_t, __BYTE_ORDER, 16), | |
| 498 | false, false, false), | |
| 499 | [2] = lttng_kernel_static_event_field("events", | |
| 500 | lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_pollfd_flag_fields), | |
| 501 | lttng_pollfd_flag_fields, 0), | |
| 502 | false, false, false), | |
| 6a2ecd2e JD |
503 | }; |
| 504 | ||
| 6a2ecd2e JD |
505 | #endif /* ONCE_LTTNG_TRACE_POLL_H */ |
| 506 | ||
| 507 | #define LTTNG_SYSCALL_POLL_locvar \ | |
| 508 | unsigned int fds_length, fds_max_len, alloc_fds; \ | |
| 509 | struct pollfd *fds; \ | |
| 510 | uint8_t overflow; | |
| 511 | ||
| 512 | #define LTTNG_SYSCALL_POLL_code_pre \ | |
| 513 | BUILD_BUG_ON(((ARRAY_SIZE(lttng_pollfd_flag_fields) - 1) + \ | |
| 514 | POLL_FLAGS_PADDING_SIZE) != \ | |
| 515 | sizeof(uint8_t) * BITS_PER_BYTE); \ | |
| 516 | tp_locvar->fds = NULL; \ | |
| 517 | tp_locvar->overflow = 0; \ | |
| 518 | \ | |
| 519 | sc_in( \ | |
| 520 | if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \ | |
| 521 | tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \ | |
| 522 | tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \ | |
| 523 | tp_locvar->overflow = 1; \ | |
| 524 | } else { \ | |
| 525 | tp_locvar->fds_length = nfds; \ | |
| 526 | tp_locvar->fds_max_len = nfds; \ | |
| 527 | } \ | |
| 528 | tp_locvar->alloc_fds = tp_locvar->fds_length * sizeof(struct pollfd); \ | |
| 529 | ) \ | |
| 530 | /* \ | |
| 531 | * On exit, the number of active FDs is determined by ret, \ | |
| 532 | * nfds stays the same as the entry, but we only want to \ | |
| 533 | * output the FDs that are relevant. \ | |
| 534 | */ \ | |
| 535 | sc_out( \ | |
| 536 | if (ret <= 0 || ret > nfds) \ | |
| 537 | goto error; \ | |
| 538 | \ | |
| 539 | if (nfds > PAGE_SIZE / sizeof(struct pollfd)) { \ | |
| 540 | tp_locvar->fds_length = PAGE_SIZE / sizeof(struct pollfd); \ | |
| 541 | tp_locvar->fds_max_len = PAGE_SIZE / sizeof(struct pollfd); \ | |
| 542 | tp_locvar->overflow = 1; \ | |
| 543 | } else { \ | |
| 544 | tp_locvar->fds_length = ret; \ | |
| 545 | tp_locvar->fds_max_len = nfds; \ | |
| 546 | } \ | |
| 547 | tp_locvar->alloc_fds = tp_locvar->fds_max_len * sizeof(struct pollfd); \ | |
| 548 | ) \ | |
| 549 | { \ | |
| 550 | int err; \ | |
| 551 | \ | |
| ec85ce1d | 552 | tp_locvar->fds = lttng_tp_mempool_alloc(tp_locvar->alloc_fds); \ |
| 6a2ecd2e JD |
553 | if (!tp_locvar->fds) \ |
| 554 | goto error; \ | |
| 555 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
| 41a3cca2 | 556 | tp_locvar->fds, ufds, tp_locvar->alloc_fds); \ |
| 6a2ecd2e JD |
557 | if (err != 0) \ |
| 558 | goto error; \ | |
| 559 | } \ | |
| 560 | goto end; \ | |
| 561 | \ | |
| 562 | error: \ | |
| 563 | tp_locvar->fds_length = 0; \ | |
| 564 | tp_locvar->fds_max_len = 0; \ | |
| 565 | end: \ | |
| 566 | ; | |
| 567 | ||
| 568 | #define LTTNG_SYSCALL_POLL_fds_field \ | |
| 569 | sc_in( \ | |
| 570 | ctf_custom_field( \ | |
| 571 | ctf_custom_type( \ | |
| 437d5aa5 MD |
572 | lttng_kernel_static_type_sequence("fds_length", \ |
| 573 | lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_pollfd_fields), lttng_pollfd_fields, 0), \ | |
| 574 | 0, \ | |
| 575 | none) \ | |
| 6a2ecd2e JD |
576 | ), \ |
| 577 | fds, \ | |
| 578 | ctf_custom_code( \ | |
| 579 | uint32_t i; \ | |
| 580 | \ | |
| 581 | ctf_align(int) /* Align on largest field in struct. */ \ | |
| 582 | for (i = 0; i < tp_locvar->fds_length; i++) { \ | |
| 583 | ctf_integer_type(int, tp_locvar->fds[i].fd) \ | |
| 584 | ctf_integer_type(short, tp_locvar->fds[i].events) \ | |
| 585 | ctf_integer_bitfield_type(uint8_t, \ | |
| 586 | (uint8_t) tp_locvar->fds[i].events) \ | |
| 587 | } \ | |
| 588 | ) \ | |
| 589 | ) \ | |
| 590 | ) \ | |
| 591 | sc_out( \ | |
| 592 | ctf_custom_field( \ | |
| 593 | ctf_custom_type( \ | |
| 437d5aa5 MD |
594 | lttng_kernel_static_type_sequence("fds_length", \ |
| 595 | lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_pollfd_fields), lttng_pollfd_fields, 0), \ | |
| 596 | 0, \ | |
| 597 | none) \ | |
| 6a2ecd2e JD |
598 | ), \ |
| 599 | fds, \ | |
| 600 | ctf_custom_code( \ | |
| 601 | unsigned int i, nr = 0; \ | |
| 602 | \ | |
| 603 | ctf_align(int) /* Align on largest field in struct. */ \ | |
| 604 | /* \ | |
| 605 | * Iterate over the complete array, but only output \ | |
| 606 | * "ret" active FDs. \ | |
| 607 | */ \ | |
| 608 | for (i = 0; i < tp_locvar->fds_max_len; i++) { \ | |
| 609 | if (!tp_locvar->fds[i].revents) \ | |
| 610 | continue; \ | |
| 611 | if (nr++ >= tp_locvar->fds_length) \ | |
| 612 | break; \ | |
| 613 | ctf_integer_type(int, tp_locvar->fds[i].fd) \ | |
| 614 | ctf_integer_type(short, tp_locvar->fds[i].revents) \ | |
| 615 | ctf_integer_bitfield_type(uint8_t, \ | |
| 616 | (uint8_t) tp_locvar->fds[i].revents) \ | |
| 617 | } \ | |
| 618 | /* \ | |
| 619 | * If there is a discrepancy between ret and the \ | |
| 620 | * content of revents (e.g. caused by userspace corrupting \ | |
| 621 | * the array from a concurrent thread), we have to output \ | |
| 622 | * zeros to keep the trace readable. \ | |
| 623 | */ \ | |
| 624 | for (i = nr; i < tp_locvar->fds_length; i++) { \ | |
| 625 | ctf_integer_type(int, 0) \ | |
| 626 | ctf_integer_type(short, 0) \ | |
| 627 | ctf_integer_bitfield_type(uint8_t, 0) \ | |
| 628 | } \ | |
| 629 | ) \ | |
| 630 | ) \ | |
| 631 | ) | |
| 632 | ||
| 633 | #define LTTNG_SYSCALL_POLL_code_post \ | |
| ec85ce1d | 634 | lttng_tp_mempool_free(tp_locvar->fds); |
| 6a2ecd2e | 635 | |
| a6370148 | 636 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
| 6a2ecd2e JD |
637 | #define OVERRIDE_32_poll |
| 638 | #define OVERRIDE_64_poll | |
| 639 | SC_LTTNG_TRACEPOINT_EVENT_CODE(poll, | |
| 640 | TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds, | |
| 641 | unsigned int nfds, int timeout_msecs), | |
| 642 | TP_ARGS(sc_exit(ret,) ufds, nfds, timeout_msecs), | |
| 643 | TP_locvar( | |
| 644 | LTTNG_SYSCALL_POLL_locvar | |
| 645 | ), | |
| 646 | TP_code_pre( | |
| 647 | LTTNG_SYSCALL_POLL_code_pre | |
| 648 | ), | |
| 649 | TP_FIELDS( | |
| 650 | sc_exit(ctf_integer(long, ret, ret)) | |
| 651 | sc_in(ctf_integer(int, timeout_msecs, timeout_msecs)) | |
| 652 | sc_inout(ctf_integer(unsigned int, nfds, nfds)) | |
| 653 | sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
| 654 | sc_in(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
| 655 | LTTNG_SYSCALL_POLL_fds_field | |
| 656 | ), | |
| 657 | TP_code_post( | |
| 658 | LTTNG_SYSCALL_POLL_code_post | |
| 659 | ) | |
| 660 | ) | |
| 639655f9 | 661 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
| 6a2ecd2e JD |
662 | |
| 663 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
| 664 | #define OVERRIDE_32_ppoll | |
| 665 | #define OVERRIDE_64_ppoll | |
| 666 | SC_LTTNG_TRACEPOINT_EVENT_CODE(ppoll, | |
| 667 | TP_PROTO(sc_exit(long ret,) struct pollfd __user * ufds, | |
| 668 | unsigned int nfds, struct timespec * tsp, const sigset_t * sigmask, size_t sigsetsize), | |
| 669 | TP_ARGS(sc_exit(ret,) ufds, nfds, tsp, sigmask, sigsetsize), | |
| 670 | TP_locvar( | |
| 671 | LTTNG_SYSCALL_POLL_locvar | |
| 672 | ), | |
| 673 | TP_code_pre( | |
| 674 | LTTNG_SYSCALL_POLL_code_pre | |
| 675 | ), | |
| 676 | TP_FIELDS( | |
| 677 | sc_exit(ctf_integer(long, ret, ret)) | |
| 678 | sc_in(ctf_integer(struct timespec *, tsp, tsp)) | |
| 679 | sc_in(ctf_integer(const sigset_t *, sigmask, sigmask)) | |
| 680 | sc_in(ctf_integer(size_t, sigsetsize, sigsetsize)) | |
| 681 | sc_inout(ctf_integer(unsigned int, nfds, nfds)) | |
| 682 | sc_inout(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
| 683 | sc_inout(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
| 684 | LTTNG_SYSCALL_POLL_fds_field | |
| 685 | ), | |
| 686 | TP_code_post( | |
| 687 | LTTNG_SYSCALL_POLL_code_post | |
| 688 | ) | |
| 689 | ) | |
| 690 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
| 691 | ||
| 45e0ded1 JD |
692 | #include <linux/eventpoll.h> |
| 693 | ||
| 694 | SC_LTTNG_TRACEPOINT_ENUM(lttng_epoll_op, | |
| 695 | TP_ENUM_VALUES( | |
| 696 | ctf_enum_value("EPOLL_CTL_ADD", EPOLL_CTL_ADD) | |
| 697 | ctf_enum_value("EPOLL_CTL_DEL", EPOLL_CTL_DEL) | |
| 698 | ctf_enum_value("EPOLL_CTL_MOD", EPOLL_CTL_MOD) | |
| 699 | ) | |
| 700 | ) | |
| 701 | ||
| 702 | #ifndef ONCE_LTTNG_TRACE_EPOLL_CTL_H | |
| 703 | #define ONCE_LTTNG_TRACE_EPOLL_CTL_H | |
| 704 | ||
| 705 | #define LTTNG_EPOLL_NRFLAGS (POLLHUP + 1) | |
| 706 | #define EPOLL_FLAGS_PADDING_SIZE (sizeof(uint8_t) * BITS_PER_BYTE) - \ | |
| 707 | ilog2(LTTNG_EPOLL_NRFLAGS - 1) | |
| 708 | ||
| 709 | /* | |
| 710 | * Only extract the values specified by iBCS2 for now. | |
| 711 | */ | |
| 437d5aa5 | 712 | static const struct lttng_kernel_event_field *lttng_epoll_ctl_events_fields[] = { |
| 45e0ded1 | 713 | /* 0x0001 */ |
| 437d5aa5 MD |
714 | [ilog2(POLLIN)] = lttng_kernel_static_event_field("EPOLLIN", |
| 715 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 716 | false, false, false), | |
| 45e0ded1 | 717 | /* 0x0002 */ |
| 437d5aa5 MD |
718 | [ilog2(POLLPRI)] = lttng_kernel_static_event_field("EPOLLPRI", |
| 719 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 720 | false, false, false), | |
| 45e0ded1 | 721 | /* 0x0004 */ |
| 437d5aa5 MD |
722 | [ilog2(POLLOUT)] = lttng_kernel_static_event_field("EPOLLOUT", |
| 723 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 724 | false, false, false), | |
| 45e0ded1 | 725 | /* 0x0008 */ |
| 437d5aa5 MD |
726 | [ilog2(POLLERR)] = lttng_kernel_static_event_field("EPOLLERR", |
| 727 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 728 | false, false, false), | |
| 45e0ded1 | 729 | /* 0x0010 */ |
| 437d5aa5 MD |
730 | [ilog2(POLLHUP)] = lttng_kernel_static_event_field("EPOLLHUP", |
| 731 | lttng_kernel_static_type_integer(1, 1, 0, __LITTLE_ENDIAN, 10), | |
| 732 | false, false, false), | |
| 733 | [ilog2(LTTNG_EPOLL_NRFLAGS)] = lttng_kernel_static_event_field("padding", | |
| 734 | lttng_kernel_static_type_integer(EPOLL_FLAGS_PADDING_SIZE, 1, 0, __LITTLE_ENDIAN, 10), | |
| 735 | false, false, false), | |
| 45e0ded1 JD |
736 | }; |
| 737 | ||
| 437d5aa5 MD |
738 | static const struct lttng_kernel_event_field *lttng_epoll_data_fields[] = { |
| 739 | [0] = lttng_kernel_static_event_field("u64", | |
| 740 | lttng_kernel_static_type_integer_from_type(uint64_t, __BYTE_ORDER, 16), | |
| 741 | false, false, false), | |
| 742 | [1] = lttng_kernel_static_event_field("fd", | |
| 743 | lttng_kernel_static_type_integer_from_type(int, __BYTE_ORDER, 10), | |
| 744 | false, false, false), | |
| 45e0ded1 JD |
745 | }; |
| 746 | ||
| 437d5aa5 MD |
747 | static const struct lttng_kernel_event_field *epoll_ctl_fields[] = { |
| 748 | [0] = lttng_kernel_static_event_field("data_union", | |
| 749 | lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_data_fields), | |
| 750 | lttng_epoll_data_fields, | |
| 751 | 0), | |
| 752 | false, false, false), | |
| 753 | [1] = lttng_kernel_static_event_field("raw_events", | |
| 754 | lttng_kernel_static_type_integer_from_type(uint32_t, __BYTE_ORDER, 16), | |
| 755 | false, false, false), | |
| 756 | [2] = lttng_kernel_static_event_field("events", | |
| 757 | lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_ctl_events_fields), | |
| 758 | lttng_epoll_ctl_events_fields, | |
| 759 | 0), | |
| 760 | false, false, false), | |
| 45e0ded1 JD |
761 | }; |
| 762 | #endif /* ONCE_LTTNG_TRACE_EPOLL_CTL_H */ | |
| 763 | ||
| 764 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
| 765 | #define OVERRIDE_32_epoll_ctl | |
| 766 | #define OVERRIDE_64_epoll_ctl | |
| 767 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_ctl, | |
| 768 | TP_PROTO(sc_exit(long ret,) int epfd, int op, int fd, | |
| 769 | struct epoll_event __user * uevent), | |
| 770 | TP_ARGS(sc_exit(ret,) epfd, op, fd, uevent), | |
| 771 | TP_locvar( | |
| 772 | struct epoll_event event; | |
| 773 | int err; | |
| 774 | ), | |
| 775 | TP_code_pre( | |
| 776 | tp_locvar->err = lib_ring_buffer_copy_from_user_check_nofault( | |
| 777 | &tp_locvar->event, uevent, sizeof(struct epoll_event)); | |
| 778 | ), | |
| 779 | TP_FIELDS( | |
| 780 | sc_exit(ctf_integer(long, ret, ret)) | |
| 781 | sc_in(ctf_integer(int, epfd, epfd)) | |
| 782 | sc_in(ctf_enum(lttng_epoll_op, int, op_enum, op)) | |
| 783 | sc_in(ctf_integer(int, fd, fd)) | |
| 784 | sc_in( | |
| 785 | ctf_custom_field( | |
| 786 | ctf_custom_type( | |
| 437d5aa5 | 787 | lttng_kernel_static_type_struct(ARRAY_SIZE(epoll_ctl_fields), epoll_ctl_fields, 0) |
| 45e0ded1 JD |
788 | ), |
| 789 | event, | |
| 790 | ctf_custom_code( | |
| 791 | ctf_align(uint64_t) | |
| 792 | if (!tp_locvar->err) { | |
| 793 | ctf_integer_type(uint64_t, tp_locvar->event.data) | |
| 794 | ctf_integer_type(int, tp_locvar->event.data) | |
| 795 | ctf_integer_bitfield_type(uint32_t, | |
| 796 | tp_locvar->event.events) | |
| 797 | ctf_integer_bitfield_type(uint8_t, | |
| 798 | (uint8_t) tp_locvar->event.events) | |
| 799 | } else { | |
| 800 | ctf_integer_type(uint64_t, 0) | |
| 801 | ctf_integer_type(int, 0) | |
| 802 | ctf_integer_bitfield_type(uint32_t, 0) | |
| 803 | ctf_integer_bitfield_type(uint8_t, 0) | |
| 804 | } | |
| 805 | ) | |
| 806 | ) | |
| 807 | ) | |
| 808 | ), | |
| 809 | TP_code_post() | |
| 810 | ) | |
| 811 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
| 812 | ||
| f22697ca JD |
813 | #ifndef ONCE_LTTNG_TRACE_EPOLL_H |
| 814 | #define ONCE_LTTNG_TRACE_EPOLL_H | |
| 815 | ||
| 437d5aa5 MD |
816 | static const struct lttng_kernel_event_field *lttng_epoll_wait_fields[] = lttng_kernel_static_event_field_array( |
| 817 | [0] = lttng_kernel_static_event_field("data_union", | |
| 818 | lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_data_fields), lttng_epoll_data_fields, 0), | |
| 819 | false, false, false), | |
| 820 | [1] = lttng_kernel_static_event_field("raw_events", lttng_kernel_static_type_integer_from_type(uint32_t, __BYTE_ORDER, 16), | |
| 821 | false, false, false), | |
| 822 | [2] = lttng_kernel_static_event_field("events", | |
| 823 | lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_ctl_events_fields), lttng_epoll_ctl_events_fields, 0), | |
| 824 | false, false, false), | |
| 825 | ); | |
| f22697ca JD |
826 | |
| 827 | #endif /* ONCE_LTTNG_TRACE_EPOLL_H */ | |
| 828 | ||
| 829 | #define LTTNG_SYSCALL_EPOLL_WAIT_locvar \ | |
| 830 | sc_out( \ | |
| 831 | unsigned int fds_length; \ | |
| 832 | uint8_t overflow; \ | |
| 833 | struct epoll_event *events; \ | |
| 834 | ) | |
| 835 | ||
| 836 | #define LTTNG_SYSCALL_EPOLL_WAIT_code_pre \ | |
| 837 | BUILD_BUG_ON(((ARRAY_SIZE(lttng_epoll_ctl_events_fields) - 1) + \ | |
| 838 | EPOLL_FLAGS_PADDING_SIZE) != \ | |
| 839 | sizeof(uint8_t) * BITS_PER_BYTE); \ | |
| 840 | sc_out({ \ | |
| 841 | int err; \ | |
| 842 | unsigned long maxalloc; \ | |
| 843 | \ | |
| 844 | tp_locvar->fds_length = 0; \ | |
| 845 | tp_locvar->events = NULL; \ | |
| 846 | tp_locvar->overflow = 0; \ | |
| 847 | \ | |
| 848 | if (maxevents <= 0 || ret <= 0 || ret > maxevents) \ | |
| 849 | goto skip_code; \ | |
| 850 | \ | |
| 851 | if (maxevents > PAGE_SIZE / sizeof(struct epoll_event)) { \ | |
| 852 | maxalloc = PAGE_SIZE / sizeof(struct epoll_event); \ | |
| 853 | } else { \ | |
| 854 | maxalloc = maxevents; \ | |
| 855 | } \ | |
| 856 | \ | |
| 857 | if (ret > maxalloc) { \ | |
| 858 | tp_locvar->fds_length = maxalloc; \ | |
| 859 | tp_locvar->overflow = 1; \ | |
| 860 | } else { \ | |
| 861 | tp_locvar->fds_length = ret; \ | |
| 862 | } \ | |
| 863 | \ | |
| 437d5aa5 | 864 | tp_locvar->events = lttng_tp_mempool_alloc( \ |
| ec85ce1d | 865 | maxalloc * sizeof(struct epoll_event)); \ |
| f22697ca JD |
866 | if (!tp_locvar->events) { \ |
| 867 | tp_locvar->fds_length = 0; \ | |
| 868 | goto skip_code; \ | |
| 869 | } \ | |
| 870 | \ | |
| 871 | err = lib_ring_buffer_copy_from_user_check_nofault( \ | |
| 872 | tp_locvar->events, uevents, \ | |
| 41a3cca2 | 873 | maxalloc * sizeof(struct epoll_event)); \ |
| f22697ca JD |
874 | if (err != 0) \ |
| 875 | tp_locvar->fds_length = 0; \ | |
| 876 | } \ | |
| 877 | skip_code: \ | |
| 878 | ) | |
| 879 | ||
| 880 | #define LTTNG_SYSCALL_EPOLL_WAIT_fds_field \ | |
| 881 | ctf_custom_field( \ | |
| 882 | ctf_custom_type( \ | |
| 437d5aa5 MD |
883 | lttng_kernel_static_type_sequence("fds_length", \ |
| 884 | lttng_kernel_static_type_struct(ARRAY_SIZE(lttng_epoll_wait_fields), lttng_epoll_wait_fields, 0), \ | |
| 885 | 0, \ | |
| 886 | none) \ | |
| f22697ca JD |
887 | ), \ |
| 888 | fds, \ | |
| 889 | ctf_custom_code( \ | |
| 890 | uint32_t i; \ | |
| 891 | \ | |
| 892 | ctf_align(uint64_t) \ | |
| 893 | for (i = 0; i < tp_locvar->fds_length; i++) { \ | |
| 894 | ctf_integer_type(uint64_t, tp_locvar->events[i].data) \ | |
| 895 | ctf_integer_type(int, tp_locvar->events[i].data) \ | |
| 896 | ctf_integer_bitfield_type(uint32_t, \ | |
| 897 | tp_locvar->events[i].events) \ | |
| 898 | ctf_integer_bitfield_type(uint8_t, \ | |
| 899 | (uint8_t) tp_locvar->events[i].events) \ | |
| 900 | } \ | |
| 901 | ) \ | |
| 902 | ) | |
| 903 | ||
| 904 | #define LTTNG_SYSCALL_EPOLL_WAIT_code_post \ | |
| 905 | sc_out( \ | |
| ec85ce1d | 906 | lttng_tp_mempool_free(tp_locvar->events); \ |
| f22697ca JD |
907 | ) |
| 908 | ||
| 909 | ||
| a6370148 | 910 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) |
| f22697ca JD |
911 | #define OVERRIDE_32_epoll_wait |
| 912 | #define OVERRIDE_64_epoll_wait | |
| 913 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_wait, | |
| 914 | TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents, | |
| 915 | int maxevents, int timeout), | |
| 916 | TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout), | |
| 917 | TP_locvar( | |
| 918 | LTTNG_SYSCALL_EPOLL_WAIT_locvar | |
| 919 | ), | |
| 920 | TP_code_pre( | |
| 921 | LTTNG_SYSCALL_EPOLL_WAIT_code_pre | |
| 922 | ), | |
| 923 | TP_FIELDS( | |
| 924 | sc_exit(ctf_integer(long, ret, ret)) | |
| 925 | sc_in(ctf_integer(int, epfd, epfd)) | |
| 926 | sc_in(ctf_integer(int, maxevents, maxevents)) | |
| 927 | sc_in(ctf_integer(int, timeout, timeout)) | |
| 928 | sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
| 929 | sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
| 930 | sc_out( | |
| 931 | LTTNG_SYSCALL_EPOLL_WAIT_fds_field | |
| 932 | ) | |
| 933 | ), | |
| 934 | TP_code_post( | |
| 935 | LTTNG_SYSCALL_EPOLL_WAIT_code_post | |
| 936 | ) | |
| 937 | ) | |
| 639655f9 | 938 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM) */ |
| f22697ca JD |
939 | |
| 940 | #if defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) | |
| 941 | #define OVERRIDE_32_epoll_pwait | |
| 942 | #define OVERRIDE_64_epoll_pwait | |
| 943 | SC_LTTNG_TRACEPOINT_EVENT_CODE(epoll_pwait, | |
| 944 | TP_PROTO(sc_exit(long ret,) int epfd, struct epoll_event __user * uevents, | |
| 945 | int maxevents, int timeout, const sigset_t __user * sigmask, size_t sigsetsize), | |
| 946 | TP_ARGS(sc_exit(ret,) epfd, uevents, maxevents, timeout, sigmask, sigsetsize), | |
| 947 | TP_locvar( | |
| 948 | LTTNG_SYSCALL_EPOLL_WAIT_locvar | |
| 949 | ), | |
| 950 | TP_code_pre( | |
| 951 | LTTNG_SYSCALL_EPOLL_WAIT_code_pre | |
| 952 | ), | |
| 953 | TP_FIELDS( | |
| 954 | sc_exit(ctf_integer(long, ret, ret)) | |
| 955 | sc_in(ctf_integer(int, epfd, epfd)) | |
| 956 | sc_in(ctf_integer(int, maxevents, maxevents)) | |
| 957 | sc_in(ctf_integer(int, timeout, timeout)) | |
| 958 | sc_in(ctf_integer_hex(const sigset_t *, sigmask, sigmask)) | |
| 959 | sc_in(ctf_integer(size_t, sigsetsize, sigsetsize)) | |
| 960 | sc_out(ctf_integer(unsigned int, fds_length, tp_locvar->fds_length)) | |
| 961 | sc_out(ctf_integer(uint8_t, overflow, tp_locvar->overflow)) | |
| 962 | sc_out( | |
| 963 | LTTNG_SYSCALL_EPOLL_WAIT_fds_field | |
| 964 | ) | |
| 965 | ), | |
| 966 | TP_code_post( | |
| 967 | LTTNG_SYSCALL_EPOLL_WAIT_code_post | |
| 968 | ) | |
| 969 | ) | |
| 970 | #endif /* defined(CONFIG_X86_32) || defined(CONFIG_X86_64) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
| 971 | ||
| 771af27e JW |
972 | #if (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) |
| 973 | #define OVERRIDE_32_socketpair | |
| 974 | #define OVERRIDE_64_socketpair | |
| 975 | SC_LTTNG_TRACEPOINT_EVENT(socketpair, | |
| 976 | TP_PROTO(sc_exit(long ret,) int family, int type, int protocol, int *usockvec), | |
| 977 | TP_ARGS(sc_exit(ret,) family, type, protocol, usockvec), | |
| 978 | TP_FIELDS( | |
| 979 | sc_exit(ctf_integer(long, ret, ret)) | |
| 980 | sc_in(ctf_integer(int, family, family)) | |
| 981 | sc_in(ctf_integer(int, type, type)) | |
| 982 | sc_in(ctf_integer(int, protocol, protocol)) | |
| 983 | sc_out(ctf_user_array(int, socket, usockvec, 2)) | |
| 984 | ) | |
| 985 | ) | |
| 986 | #endif /* (defined(CONFIG_X86_64) && !defined(LTTNG_SC_COMPAT)) || defined(CONFIG_ARM64) || defined(CONFIG_ARM) */ | |
| 987 | ||
| c8dfb724 GB |
988 | /* |
| 989 | * Enumeration of the open flags, as described in the 'open' | |
| 990 | * system call man page. | |
| 991 | */ | |
| 992 | SC_LTTNG_TRACEPOINT_ENUM(lttng_file_status_flags, | |
| 993 | TP_ENUM_VALUES( | |
| 994 | ctf_enum_value("O_RDONLY", O_RDONLY) | |
| 995 | ctf_enum_value("O_WRONLY", O_WRONLY) | |
| 996 | ctf_enum_value("O_RDWR", O_RDWR) | |
| 997 | ctf_enum_value("O_CREAT", O_CREAT) | |
| 998 | ctf_enum_value("O_EXCL", O_EXCL) | |
| 999 | ctf_enum_value("O_NOCTTY", O_NOCTTY) | |
| 1000 | ctf_enum_value("O_TRUNC", O_TRUNC) | |
| 1001 | ctf_enum_value("O_APPEND", O_APPEND) | |
| 1002 | ctf_enum_value("O_NONBLOCK", O_NONBLOCK) | |
| 1003 | ctf_enum_value("O_DSYNC", O_DSYNC) | |
| 1004 | ctf_enum_value("FASYNC", FASYNC) | |
| 1005 | ctf_enum_value("O_DIRECT", O_DIRECT) | |
| 1006 | ctf_enum_value("O_LARGEFILE", O_LARGEFILE) | |
| 1007 | ctf_enum_value("O_DIRECTORY", O_DIRECTORY) | |
| 1008 | ctf_enum_value("O_NOFOLLOW", O_NOFOLLOW) | |
| 1009 | ctf_enum_value("O_NOATIME", O_NOATIME) | |
| 1010 | ctf_enum_value("O_CLOEXEC", O_CLOEXEC) | |
| 1011 | ctf_enum_value("O_SYNC", __O_SYNC) | |
| 1012 | ctf_enum_value("O_PATH", O_PATH) | |
| 5f4c791e | 1013 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0)) |
| c8dfb724 | 1014 | ctf_enum_value("O_TMPFILE", __O_TMPFILE) |
| 5f4c791e | 1015 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,11,0)) */ |
| c8dfb724 GB |
1016 | ) |
| 1017 | ) | |
| 1018 | ||
| 1019 | /* | |
| 1020 | * Enumeration of the open flags, as described in the 'open' | |
| 1021 | * system call man page. | |
| 1022 | */ | |
| 1023 | SC_LTTNG_TRACEPOINT_ENUM(lttng_file_mode, | |
| 1024 | TP_ENUM_VALUES( | |
| 1025 | ctf_enum_value("S_IRWXU", S_IRWXU) | |
| 1026 | ctf_enum_value("S_IRUSR", S_IRUSR) | |
| 1027 | ctf_enum_value("S_IWUSR", S_IWUSR) | |
| 1028 | ctf_enum_value("S_IXUSR", S_IXUSR) | |
| 1029 | ctf_enum_value("S_IRWXG", S_IRWXG) | |
| 1030 | ctf_enum_value("S_IRGRP", S_IRGRP) | |
| 1031 | ctf_enum_value("S_IWGRP", S_IWGRP) | |
| 1032 | ctf_enum_value("S_IXGRP", S_IXGRP) | |
| 1033 | ctf_enum_value("S_IRWXO", S_IRWXO) | |
| 1034 | ctf_enum_value("S_IROTH", S_IROTH) | |
| 1035 | ctf_enum_value("S_IWOTH", S_IWOTH) | |
| 1036 | ctf_enum_value("S_IXOTH", S_IXOTH) | |
| 1037 | ctf_enum_value("S_ISUID", S_ISUID) | |
| 1038 | ctf_enum_value("S_ISGID", S_ISGID) | |
| 1039 | ctf_enum_value("S_ISVTX", S_ISVTX) | |
| 1040 | ) | |
| 1041 | ) | |
| 1042 | ||
| 1043 | #define OVERRIDE_32_openat | |
| 1044 | #define OVERRIDE_64_openat | |
| 1045 | SC_LTTNG_TRACEPOINT_EVENT(openat, | |
| 1046 | TP_PROTO(sc_exit(long ret,) int dfd, const char * filename, int flags, umode_t mode), | |
| 1047 | TP_ARGS(sc_exit(ret,) dfd, filename, flags, mode), | |
| 1048 | TP_FIELDS( | |
| 1049 | sc_exit(ctf_integer(long, ret, ret)) | |
| 1050 | sc_in(ctf_integer(int, dfd, dfd)) | |
| 1051 | sc_in(ctf_user_string(filename, filename)) | |
| 1052 | sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) | |
| 1053 | sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) | |
| 1054 | ) | |
| 1055 | ) | |
| 1056 | ||
| 1057 | #define OVERRIDE_32_open | |
| 1058 | #define OVERRIDE_64_open | |
| 1059 | SC_LTTNG_TRACEPOINT_EVENT(open, | |
| 1060 | TP_PROTO(sc_exit(long ret,) const char * filename, int flags, umode_t mode), | |
| 1061 | TP_ARGS(sc_exit(ret,) filename, flags, mode), | |
| 1062 | TP_FIELDS( | |
| 1063 | sc_exit(ctf_integer(long, ret, ret)) | |
| 1064 | sc_in(ctf_user_string(filename, filename)) | |
| 1065 | sc_in(ctf_enum(lttng_file_status_flags, int, flags, flags)) | |
| 1066 | sc_in(ctf_enum(lttng_file_mode, umode_t, mode, mode)) | |
| 1067 | ) | |
| 1068 | ) | |
| 1069 | ||
| e42e81fd | 1070 | #endif /* CREATE_SYSCALL_TABLE */ |