Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * builtin-inject.c |
| 4 | * |
| 5 | * Builtin inject command: Examine the live mode (stdin) event stream |
| 6 | * and repipe it to stdout while optionally injecting additional |
| 7 | * events into it. |
| 8 | */ |
| 9 | #include "builtin.h" |
| 10 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 11 | #include "util/color.h" |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 12 | #include "util/dso.h" |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 13 | #include "util/vdso.h" |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 14 | #include "util/evlist.h" |
| 15 | #include "util/evsel.h" |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 16 | #include "util/map.h" |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 17 | #include "util/session.h" |
| 18 | #include "util/tool.h" |
| 19 | #include "util/debug.h" |
| 20 | #include "util/build-id.h" |
| 21 | #include "util/data.h" |
| 22 | #include "util/auxtrace.h" |
| 23 | #include "util/jit.h" |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 24 | #include "util/symbol.h" |
| 25 | #include "util/synthetic-events.h" |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 26 | #include "util/thread.h" |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 27 | #include "util/namespaces.h" |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 28 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 29 | #include <linux/err.h> |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 30 | #include <subcmd/parse-options.h> |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 31 | #include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */ |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 32 | |
| 33 | #include <linux/list.h> |
| 34 | #include <errno.h> |
| 35 | #include <signal.h> |
| 36 | |
| 37 | struct perf_inject { |
| 38 | struct perf_tool tool; |
| 39 | struct perf_session *session; |
| 40 | bool build_ids; |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 41 | bool build_id_all; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 42 | bool sched_stat; |
| 43 | bool have_auxtrace; |
| 44 | bool strip; |
| 45 | bool jit_mode; |
| 46 | const char *input_name; |
| 47 | struct perf_data output; |
| 48 | u64 bytes_written; |
| 49 | u64 aux_id; |
| 50 | struct list_head samples; |
| 51 | struct itrace_synth_opts itrace_synth_opts; |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 52 | char event_copy[PERF_SAMPLE_MAX_SIZE]; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 53 | }; |
| 54 | |
| 55 | struct event_entry { |
| 56 | struct list_head node; |
| 57 | u32 tid; |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 58 | union perf_event event[]; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 59 | }; |
| 60 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 61 | static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
| 62 | struct machine *machine, u8 cpumode, u32 flags); |
| 63 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 64 | static int output_bytes(struct perf_inject *inject, void *buf, size_t sz) |
| 65 | { |
| 66 | ssize_t size; |
| 67 | |
| 68 | size = perf_data__write(&inject->output, buf, sz); |
| 69 | if (size < 0) |
| 70 | return -errno; |
| 71 | |
| 72 | inject->bytes_written += size; |
| 73 | return 0; |
| 74 | } |
| 75 | |
| 76 | static int perf_event__repipe_synth(struct perf_tool *tool, |
| 77 | union perf_event *event) |
| 78 | { |
| 79 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
| 80 | tool); |
| 81 | |
| 82 | return output_bytes(inject, event, event->header.size); |
| 83 | } |
| 84 | |
| 85 | static int perf_event__repipe_oe_synth(struct perf_tool *tool, |
| 86 | union perf_event *event, |
| 87 | struct ordered_events *oe __maybe_unused) |
| 88 | { |
| 89 | return perf_event__repipe_synth(tool, event); |
| 90 | } |
| 91 | |
| 92 | #ifdef HAVE_JITDUMP |
| 93 | static int perf_event__drop_oe(struct perf_tool *tool __maybe_unused, |
| 94 | union perf_event *event __maybe_unused, |
| 95 | struct ordered_events *oe __maybe_unused) |
| 96 | { |
| 97 | return 0; |
| 98 | } |
| 99 | #endif |
| 100 | |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 101 | static int perf_event__repipe_op2_synth(struct perf_session *session, |
| 102 | union perf_event *event) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 103 | { |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 104 | return perf_event__repipe_synth(session->tool, event); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 105 | } |
| 106 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 107 | static int perf_event__repipe_op4_synth(struct perf_session *session, |
| 108 | union perf_event *event, |
| 109 | u64 data __maybe_unused) |
| 110 | { |
| 111 | return perf_event__repipe_synth(session->tool, event); |
| 112 | } |
| 113 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 114 | static int perf_event__repipe_attr(struct perf_tool *tool, |
| 115 | union perf_event *event, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 116 | struct evlist **pevlist) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 117 | { |
| 118 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
| 119 | tool); |
| 120 | int ret; |
| 121 | |
| 122 | ret = perf_event__process_attr(tool, event, pevlist); |
| 123 | if (ret) |
| 124 | return ret; |
| 125 | |
| 126 | if (!inject->output.is_pipe) |
| 127 | return 0; |
| 128 | |
| 129 | return perf_event__repipe_synth(tool, event); |
| 130 | } |
| 131 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 132 | static int perf_event__repipe_event_update(struct perf_tool *tool, |
| 133 | union perf_event *event, |
| 134 | struct evlist **pevlist __maybe_unused) |
| 135 | { |
| 136 | return perf_event__repipe_synth(tool, event); |
| 137 | } |
| 138 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 139 | #ifdef HAVE_AUXTRACE_SUPPORT |
| 140 | |
| 141 | static int copy_bytes(struct perf_inject *inject, int fd, off_t size) |
| 142 | { |
| 143 | char buf[4096]; |
| 144 | ssize_t ssz; |
| 145 | int ret; |
| 146 | |
| 147 | while (size > 0) { |
| 148 | ssz = read(fd, buf, min(size, (off_t)sizeof(buf))); |
| 149 | if (ssz < 0) |
| 150 | return -errno; |
| 151 | ret = output_bytes(inject, buf, ssz); |
| 152 | if (ret) |
| 153 | return ret; |
| 154 | size -= ssz; |
| 155 | } |
| 156 | |
| 157 | return 0; |
| 158 | } |
| 159 | |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 160 | static s64 perf_event__repipe_auxtrace(struct perf_session *session, |
| 161 | union perf_event *event) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 162 | { |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 163 | struct perf_tool *tool = session->tool; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 164 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
| 165 | tool); |
| 166 | int ret; |
| 167 | |
| 168 | inject->have_auxtrace = true; |
| 169 | |
| 170 | if (!inject->output.is_pipe) { |
| 171 | off_t offset; |
| 172 | |
| 173 | offset = lseek(inject->output.file.fd, 0, SEEK_CUR); |
| 174 | if (offset == -1) |
| 175 | return -errno; |
| 176 | ret = auxtrace_index__auxtrace_event(&session->auxtrace_index, |
| 177 | event, offset); |
| 178 | if (ret < 0) |
| 179 | return ret; |
| 180 | } |
| 181 | |
| 182 | if (perf_data__is_pipe(session->data) || !session->one_mmap) { |
| 183 | ret = output_bytes(inject, event, event->header.size); |
| 184 | if (ret < 0) |
| 185 | return ret; |
| 186 | ret = copy_bytes(inject, perf_data__fd(session->data), |
| 187 | event->auxtrace.size); |
| 188 | } else { |
| 189 | ret = output_bytes(inject, event, |
| 190 | event->header.size + event->auxtrace.size); |
| 191 | } |
| 192 | if (ret < 0) |
| 193 | return ret; |
| 194 | |
| 195 | return event->auxtrace.size; |
| 196 | } |
| 197 | |
| 198 | #else |
| 199 | |
| 200 | static s64 |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 201 | perf_event__repipe_auxtrace(struct perf_session *session __maybe_unused, |
| 202 | union perf_event *event __maybe_unused) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 203 | { |
| 204 | pr_err("AUX area tracing not supported\n"); |
| 205 | return -EINVAL; |
| 206 | } |
| 207 | |
| 208 | #endif |
| 209 | |
| 210 | static int perf_event__repipe(struct perf_tool *tool, |
| 211 | union perf_event *event, |
| 212 | struct perf_sample *sample __maybe_unused, |
| 213 | struct machine *machine __maybe_unused) |
| 214 | { |
| 215 | return perf_event__repipe_synth(tool, event); |
| 216 | } |
| 217 | |
| 218 | static int perf_event__drop(struct perf_tool *tool __maybe_unused, |
| 219 | union perf_event *event __maybe_unused, |
| 220 | struct perf_sample *sample __maybe_unused, |
| 221 | struct machine *machine __maybe_unused) |
| 222 | { |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | static int perf_event__drop_aux(struct perf_tool *tool, |
| 227 | union perf_event *event __maybe_unused, |
| 228 | struct perf_sample *sample, |
| 229 | struct machine *machine __maybe_unused) |
| 230 | { |
| 231 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
| 232 | |
| 233 | if (!inject->aux_id) |
| 234 | inject->aux_id = sample->id; |
| 235 | |
| 236 | return 0; |
| 237 | } |
| 238 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 239 | static union perf_event * |
| 240 | perf_inject__cut_auxtrace_sample(struct perf_inject *inject, |
| 241 | union perf_event *event, |
| 242 | struct perf_sample *sample) |
| 243 | { |
| 244 | size_t sz1 = sample->aux_sample.data - (void *)event; |
| 245 | size_t sz2 = event->header.size - sample->aux_sample.size - sz1; |
| 246 | union perf_event *ev = (union perf_event *)inject->event_copy; |
| 247 | |
| 248 | if (sz1 > event->header.size || sz2 > event->header.size || |
| 249 | sz1 + sz2 > event->header.size || |
| 250 | sz1 < sizeof(struct perf_event_header) + sizeof(u64)) |
| 251 | return event; |
| 252 | |
| 253 | memcpy(ev, event, sz1); |
| 254 | memcpy((void *)ev + sz1, (void *)event + event->header.size - sz2, sz2); |
| 255 | ev->header.size = sz1 + sz2; |
| 256 | ((u64 *)((void *)ev + sz1))[-1] = 0; |
| 257 | |
| 258 | return ev; |
| 259 | } |
| 260 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 261 | typedef int (*inject_handler)(struct perf_tool *tool, |
| 262 | union perf_event *event, |
| 263 | struct perf_sample *sample, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 264 | struct evsel *evsel, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 265 | struct machine *machine); |
| 266 | |
| 267 | static int perf_event__repipe_sample(struct perf_tool *tool, |
| 268 | union perf_event *event, |
| 269 | struct perf_sample *sample, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 270 | struct evsel *evsel, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 271 | struct machine *machine) |
| 272 | { |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 273 | struct perf_inject *inject = container_of(tool, struct perf_inject, |
| 274 | tool); |
| 275 | |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 276 | if (evsel && evsel->handler) { |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 277 | inject_handler f = evsel->handler; |
| 278 | return f(tool, event, sample, evsel, machine); |
| 279 | } |
| 280 | |
| 281 | build_id__mark_dso_hit(tool, event, sample, evsel, machine); |
| 282 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 283 | if (inject->itrace_synth_opts.set && sample->aux_sample.size) |
| 284 | event = perf_inject__cut_auxtrace_sample(inject, event, sample); |
| 285 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 286 | return perf_event__repipe_synth(tool, event); |
| 287 | } |
| 288 | |
| 289 | static int perf_event__repipe_mmap(struct perf_tool *tool, |
| 290 | union perf_event *event, |
| 291 | struct perf_sample *sample, |
| 292 | struct machine *machine) |
| 293 | { |
| 294 | int err; |
| 295 | |
| 296 | err = perf_event__process_mmap(tool, event, sample, machine); |
| 297 | perf_event__repipe(tool, event, sample, machine); |
| 298 | |
| 299 | return err; |
| 300 | } |
| 301 | |
| 302 | #ifdef HAVE_JITDUMP |
| 303 | static int perf_event__jit_repipe_mmap(struct perf_tool *tool, |
| 304 | union perf_event *event, |
| 305 | struct perf_sample *sample, |
| 306 | struct machine *machine) |
| 307 | { |
| 308 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
| 309 | u64 n = 0; |
| 310 | int ret; |
| 311 | |
| 312 | /* |
| 313 | * if jit marker, then inject jit mmaps and generate ELF images |
| 314 | */ |
| 315 | ret = jit_process(inject->session, &inject->output, machine, |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 316 | event->mmap.filename, event->mmap.pid, &n); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 317 | if (ret < 0) |
| 318 | return ret; |
| 319 | if (ret) { |
| 320 | inject->bytes_written += n; |
| 321 | return 0; |
| 322 | } |
| 323 | return perf_event__repipe_mmap(tool, event, sample, machine); |
| 324 | } |
| 325 | #endif |
| 326 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 327 | static struct dso *findnew_dso(int pid, int tid, const char *filename, |
| 328 | struct dso_id *id, struct machine *machine) |
| 329 | { |
| 330 | struct thread *thread; |
| 331 | struct nsinfo *nsi = NULL; |
| 332 | struct nsinfo *nnsi; |
| 333 | struct dso *dso; |
| 334 | bool vdso; |
| 335 | |
| 336 | thread = machine__findnew_thread(machine, pid, tid); |
| 337 | if (thread == NULL) { |
| 338 | pr_err("cannot find or create a task %d/%d.\n", tid, pid); |
| 339 | return NULL; |
| 340 | } |
| 341 | |
| 342 | vdso = is_vdso_map(filename); |
| 343 | nsi = nsinfo__get(thread->nsinfo); |
| 344 | |
| 345 | if (vdso) { |
| 346 | /* The vdso maps are always on the host and not the |
| 347 | * container. Ensure that we don't use setns to look |
| 348 | * them up. |
| 349 | */ |
| 350 | nnsi = nsinfo__copy(nsi); |
| 351 | if (nnsi) { |
| 352 | nsinfo__put(nsi); |
| 353 | nnsi->need_setns = false; |
| 354 | nsi = nnsi; |
| 355 | } |
| 356 | dso = machine__findnew_vdso(machine, thread); |
| 357 | } else { |
| 358 | dso = machine__findnew_dso_id(machine, filename, id); |
| 359 | } |
| 360 | |
| 361 | if (dso) { |
| 362 | nsinfo__put(dso->nsinfo); |
| 363 | dso->nsinfo = nsi; |
| 364 | } else |
| 365 | nsinfo__put(nsi); |
| 366 | |
| 367 | thread__put(thread); |
| 368 | return dso; |
| 369 | } |
| 370 | |
| 371 | static int perf_event__repipe_buildid_mmap(struct perf_tool *tool, |
| 372 | union perf_event *event, |
| 373 | struct perf_sample *sample, |
| 374 | struct machine *machine) |
| 375 | { |
| 376 | struct dso *dso; |
| 377 | |
| 378 | dso = findnew_dso(event->mmap.pid, event->mmap.tid, |
| 379 | event->mmap.filename, NULL, machine); |
| 380 | |
| 381 | if (dso && !dso->hit) { |
| 382 | dso->hit = 1; |
| 383 | dso__inject_build_id(dso, tool, machine, sample->cpumode, 0); |
| 384 | dso__put(dso); |
| 385 | } |
| 386 | |
| 387 | return perf_event__repipe(tool, event, sample, machine); |
| 388 | } |
| 389 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 390 | static int perf_event__repipe_mmap2(struct perf_tool *tool, |
| 391 | union perf_event *event, |
| 392 | struct perf_sample *sample, |
| 393 | struct machine *machine) |
| 394 | { |
| 395 | int err; |
| 396 | |
| 397 | err = perf_event__process_mmap2(tool, event, sample, machine); |
| 398 | perf_event__repipe(tool, event, sample, machine); |
| 399 | |
| 400 | return err; |
| 401 | } |
| 402 | |
| 403 | #ifdef HAVE_JITDUMP |
| 404 | static int perf_event__jit_repipe_mmap2(struct perf_tool *tool, |
| 405 | union perf_event *event, |
| 406 | struct perf_sample *sample, |
| 407 | struct machine *machine) |
| 408 | { |
| 409 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
| 410 | u64 n = 0; |
| 411 | int ret; |
| 412 | |
| 413 | /* |
| 414 | * if jit marker, then inject jit mmaps and generate ELF images |
| 415 | */ |
| 416 | ret = jit_process(inject->session, &inject->output, machine, |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 417 | event->mmap2.filename, event->mmap2.pid, &n); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 418 | if (ret < 0) |
| 419 | return ret; |
| 420 | if (ret) { |
| 421 | inject->bytes_written += n; |
| 422 | return 0; |
| 423 | } |
| 424 | return perf_event__repipe_mmap2(tool, event, sample, machine); |
| 425 | } |
| 426 | #endif |
| 427 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 428 | static int perf_event__repipe_buildid_mmap2(struct perf_tool *tool, |
| 429 | union perf_event *event, |
| 430 | struct perf_sample *sample, |
| 431 | struct machine *machine) |
| 432 | { |
| 433 | struct dso_id dso_id = { |
| 434 | .maj = event->mmap2.maj, |
| 435 | .min = event->mmap2.min, |
| 436 | .ino = event->mmap2.ino, |
| 437 | .ino_generation = event->mmap2.ino_generation, |
| 438 | }; |
| 439 | struct dso *dso; |
| 440 | |
| 441 | dso = findnew_dso(event->mmap2.pid, event->mmap2.tid, |
| 442 | event->mmap2.filename, &dso_id, machine); |
| 443 | |
| 444 | if (dso && !dso->hit) { |
| 445 | dso->hit = 1; |
| 446 | dso__inject_build_id(dso, tool, machine, sample->cpumode, |
| 447 | event->mmap2.flags); |
| 448 | dso__put(dso); |
| 449 | } |
| 450 | |
| 451 | perf_event__repipe(tool, event, sample, machine); |
| 452 | |
| 453 | return 0; |
| 454 | } |
| 455 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 456 | static int perf_event__repipe_fork(struct perf_tool *tool, |
| 457 | union perf_event *event, |
| 458 | struct perf_sample *sample, |
| 459 | struct machine *machine) |
| 460 | { |
| 461 | int err; |
| 462 | |
| 463 | err = perf_event__process_fork(tool, event, sample, machine); |
| 464 | perf_event__repipe(tool, event, sample, machine); |
| 465 | |
| 466 | return err; |
| 467 | } |
| 468 | |
| 469 | static int perf_event__repipe_comm(struct perf_tool *tool, |
| 470 | union perf_event *event, |
| 471 | struct perf_sample *sample, |
| 472 | struct machine *machine) |
| 473 | { |
| 474 | int err; |
| 475 | |
| 476 | err = perf_event__process_comm(tool, event, sample, machine); |
| 477 | perf_event__repipe(tool, event, sample, machine); |
| 478 | |
| 479 | return err; |
| 480 | } |
| 481 | |
| 482 | static int perf_event__repipe_namespaces(struct perf_tool *tool, |
| 483 | union perf_event *event, |
| 484 | struct perf_sample *sample, |
| 485 | struct machine *machine) |
| 486 | { |
| 487 | int err = perf_event__process_namespaces(tool, event, sample, machine); |
| 488 | |
| 489 | perf_event__repipe(tool, event, sample, machine); |
| 490 | |
| 491 | return err; |
| 492 | } |
| 493 | |
| 494 | static int perf_event__repipe_exit(struct perf_tool *tool, |
| 495 | union perf_event *event, |
| 496 | struct perf_sample *sample, |
| 497 | struct machine *machine) |
| 498 | { |
| 499 | int err; |
| 500 | |
| 501 | err = perf_event__process_exit(tool, event, sample, machine); |
| 502 | perf_event__repipe(tool, event, sample, machine); |
| 503 | |
| 504 | return err; |
| 505 | } |
| 506 | |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 507 | static int perf_event__repipe_tracing_data(struct perf_session *session, |
| 508 | union perf_event *event) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 509 | { |
| 510 | int err; |
| 511 | |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 512 | perf_event__repipe_synth(session->tool, event); |
| 513 | err = perf_event__process_tracing_data(session, event); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 514 | |
| 515 | return err; |
| 516 | } |
| 517 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 518 | static int dso__read_build_id(struct dso *dso) |
| 519 | { |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 520 | struct nscookie nsc; |
| 521 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 522 | if (dso->has_build_id) |
| 523 | return 0; |
| 524 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 525 | nsinfo__mountns_enter(dso->nsinfo, &nsc); |
| 526 | if (filename__read_build_id(dso->long_name, &dso->bid) > 0) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 527 | dso->has_build_id = true; |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 528 | nsinfo__mountns_exit(&nsc); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 529 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 530 | return dso->has_build_id ? 0 : -1; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 531 | } |
| 532 | |
| 533 | static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool, |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 534 | struct machine *machine, u8 cpumode, u32 flags) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 535 | { |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 536 | int err; |
| 537 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 538 | if (is_anon_memory(dso->long_name) || flags & MAP_HUGETLB) |
| 539 | return 0; |
| 540 | if (is_no_dso_memory(dso->long_name)) |
| 541 | return 0; |
| 542 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 543 | if (dso__read_build_id(dso) < 0) { |
| 544 | pr_debug("no build_id found for %s\n", dso->long_name); |
| 545 | return -1; |
| 546 | } |
| 547 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 548 | err = perf_event__synthesize_build_id(tool, dso, cpumode, |
| 549 | perf_event__repipe, machine); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 550 | if (err) { |
| 551 | pr_err("Can't synthesize build_id event for %s\n", dso->long_name); |
| 552 | return -1; |
| 553 | } |
| 554 | |
| 555 | return 0; |
| 556 | } |
| 557 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 558 | int perf_event__inject_buildid(struct perf_tool *tool, union perf_event *event, |
| 559 | struct perf_sample *sample, |
| 560 | struct evsel *evsel __maybe_unused, |
| 561 | struct machine *machine) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 562 | { |
| 563 | struct addr_location al; |
| 564 | struct thread *thread; |
| 565 | |
| 566 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
| 567 | if (thread == NULL) { |
| 568 | pr_err("problem processing %d event, skipping it.\n", |
| 569 | event->header.type); |
| 570 | goto repipe; |
| 571 | } |
| 572 | |
| 573 | if (thread__find_map(thread, sample->cpumode, sample->ip, &al)) { |
| 574 | if (!al.map->dso->hit) { |
| 575 | al.map->dso->hit = 1; |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 576 | dso__inject_build_id(al.map->dso, tool, machine, |
| 577 | sample->cpumode, al.map->flags); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 578 | } |
| 579 | } |
| 580 | |
| 581 | thread__put(thread); |
| 582 | repipe: |
| 583 | perf_event__repipe(tool, event, sample, machine); |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | static int perf_inject__sched_process_exit(struct perf_tool *tool, |
| 588 | union perf_event *event __maybe_unused, |
| 589 | struct perf_sample *sample, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 590 | struct evsel *evsel __maybe_unused, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 591 | struct machine *machine __maybe_unused) |
| 592 | { |
| 593 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
| 594 | struct event_entry *ent; |
| 595 | |
| 596 | list_for_each_entry(ent, &inject->samples, node) { |
| 597 | if (sample->tid == ent->tid) { |
| 598 | list_del_init(&ent->node); |
| 599 | free(ent); |
| 600 | break; |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | return 0; |
| 605 | } |
| 606 | |
| 607 | static int perf_inject__sched_switch(struct perf_tool *tool, |
| 608 | union perf_event *event, |
| 609 | struct perf_sample *sample, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 610 | struct evsel *evsel, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 611 | struct machine *machine) |
| 612 | { |
| 613 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
| 614 | struct event_entry *ent; |
| 615 | |
| 616 | perf_inject__sched_process_exit(tool, event, sample, evsel, machine); |
| 617 | |
| 618 | ent = malloc(event->header.size + sizeof(struct event_entry)); |
| 619 | if (ent == NULL) { |
| 620 | color_fprintf(stderr, PERF_COLOR_RED, |
| 621 | "Not enough memory to process sched switch event!"); |
| 622 | return -1; |
| 623 | } |
| 624 | |
| 625 | ent->tid = sample->tid; |
| 626 | memcpy(&ent->event, event, event->header.size); |
| 627 | list_add(&ent->node, &inject->samples); |
| 628 | return 0; |
| 629 | } |
| 630 | |
| 631 | static int perf_inject__sched_stat(struct perf_tool *tool, |
| 632 | union perf_event *event __maybe_unused, |
| 633 | struct perf_sample *sample, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 634 | struct evsel *evsel, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 635 | struct machine *machine) |
| 636 | { |
| 637 | struct event_entry *ent; |
| 638 | union perf_event *event_sw; |
| 639 | struct perf_sample sample_sw; |
| 640 | struct perf_inject *inject = container_of(tool, struct perf_inject, tool); |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 641 | u32 pid = evsel__intval(evsel, sample, "pid"); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 642 | |
| 643 | list_for_each_entry(ent, &inject->samples, node) { |
| 644 | if (pid == ent->tid) |
| 645 | goto found; |
| 646 | } |
| 647 | |
| 648 | return 0; |
| 649 | found: |
| 650 | event_sw = &ent->event[0]; |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 651 | evsel__parse_sample(evsel, event_sw, &sample_sw); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 652 | |
| 653 | sample_sw.period = sample->period; |
| 654 | sample_sw.time = sample->time; |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 655 | perf_event__synthesize_sample(event_sw, evsel->core.attr.sample_type, |
| 656 | evsel->core.attr.read_format, &sample_sw); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 657 | build_id__mark_dso_hit(tool, event_sw, &sample_sw, evsel, machine); |
| 658 | return perf_event__repipe(tool, event_sw, &sample_sw, machine); |
| 659 | } |
| 660 | |
| 661 | static void sig_handler(int sig __maybe_unused) |
| 662 | { |
| 663 | session_done = 1; |
| 664 | } |
| 665 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 666 | static int evsel__check_stype(struct evsel *evsel, u64 sample_type, const char *sample_msg) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 667 | { |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 668 | struct perf_event_attr *attr = &evsel->core.attr; |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 669 | const char *name = evsel__name(evsel); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 670 | |
| 671 | if (!(attr->sample_type & sample_type)) { |
| 672 | pr_err("Samples for %s event do not have %s attribute set.", |
| 673 | name, sample_msg); |
| 674 | return -EINVAL; |
| 675 | } |
| 676 | |
| 677 | return 0; |
| 678 | } |
| 679 | |
| 680 | static int drop_sample(struct perf_tool *tool __maybe_unused, |
| 681 | union perf_event *event __maybe_unused, |
| 682 | struct perf_sample *sample __maybe_unused, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 683 | struct evsel *evsel __maybe_unused, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 684 | struct machine *machine __maybe_unused) |
| 685 | { |
| 686 | return 0; |
| 687 | } |
| 688 | |
| 689 | static void strip_init(struct perf_inject *inject) |
| 690 | { |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 691 | struct evlist *evlist = inject->session->evlist; |
| 692 | struct evsel *evsel; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 693 | |
| 694 | inject->tool.context_switch = perf_event__drop; |
| 695 | |
| 696 | evlist__for_each_entry(evlist, evsel) |
| 697 | evsel->handler = drop_sample; |
| 698 | } |
| 699 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 700 | static int __cmd_inject(struct perf_inject *inject) |
| 701 | { |
| 702 | int ret = -EINVAL; |
| 703 | struct perf_session *session = inject->session; |
| 704 | struct perf_data *data_out = &inject->output; |
| 705 | int fd = perf_data__fd(data_out); |
| 706 | u64 output_data_offset; |
| 707 | |
| 708 | signal(SIGINT, sig_handler); |
| 709 | |
| 710 | if (inject->build_ids || inject->sched_stat || |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 711 | inject->itrace_synth_opts.set || inject->build_id_all) { |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 712 | inject->tool.mmap = perf_event__repipe_mmap; |
| 713 | inject->tool.mmap2 = perf_event__repipe_mmap2; |
| 714 | inject->tool.fork = perf_event__repipe_fork; |
| 715 | inject->tool.tracing_data = perf_event__repipe_tracing_data; |
| 716 | } |
| 717 | |
| 718 | output_data_offset = session->header.data_offset; |
| 719 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 720 | if (inject->build_id_all) { |
| 721 | inject->tool.mmap = perf_event__repipe_buildid_mmap; |
| 722 | inject->tool.mmap2 = perf_event__repipe_buildid_mmap2; |
| 723 | } else if (inject->build_ids) { |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 724 | inject->tool.sample = perf_event__inject_buildid; |
| 725 | } else if (inject->sched_stat) { |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 726 | struct evsel *evsel; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 727 | |
| 728 | evlist__for_each_entry(session->evlist, evsel) { |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 729 | const char *name = evsel__name(evsel); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 730 | |
| 731 | if (!strcmp(name, "sched:sched_switch")) { |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 732 | if (evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID")) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 733 | return -EINVAL; |
| 734 | |
| 735 | evsel->handler = perf_inject__sched_switch; |
| 736 | } else if (!strcmp(name, "sched:sched_process_exit")) |
| 737 | evsel->handler = perf_inject__sched_process_exit; |
| 738 | else if (!strncmp(name, "sched:sched_stat_", 17)) |
| 739 | evsel->handler = perf_inject__sched_stat; |
| 740 | } |
| 741 | } else if (inject->itrace_synth_opts.set) { |
| 742 | session->itrace_synth_opts = &inject->itrace_synth_opts; |
| 743 | inject->itrace_synth_opts.inject = true; |
| 744 | inject->tool.comm = perf_event__repipe_comm; |
| 745 | inject->tool.namespaces = perf_event__repipe_namespaces; |
| 746 | inject->tool.exit = perf_event__repipe_exit; |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 747 | inject->tool.id_index = perf_event__process_id_index; |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 748 | inject->tool.auxtrace_info = perf_event__process_auxtrace_info; |
| 749 | inject->tool.auxtrace = perf_event__process_auxtrace; |
| 750 | inject->tool.aux = perf_event__drop_aux; |
| 751 | inject->tool.itrace_start = perf_event__drop_aux, |
| 752 | inject->tool.ordered_events = true; |
| 753 | inject->tool.ordering_requires_timestamps = true; |
| 754 | /* Allow space in the header for new attributes */ |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 755 | output_data_offset = roundup(8192 + session->header.data_offset, 4096); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 756 | if (inject->strip) |
| 757 | strip_init(inject); |
| 758 | } |
| 759 | |
| 760 | if (!inject->itrace_synth_opts.set) |
| 761 | auxtrace_index__free(&session->auxtrace_index); |
| 762 | |
| 763 | if (!data_out->is_pipe) |
| 764 | lseek(fd, output_data_offset, SEEK_SET); |
| 765 | |
| 766 | ret = perf_session__process_events(session); |
| 767 | if (ret) |
| 768 | return ret; |
| 769 | |
| 770 | if (!data_out->is_pipe) { |
| 771 | if (inject->build_ids) |
| 772 | perf_header__set_feat(&session->header, |
| 773 | HEADER_BUILD_ID); |
| 774 | /* |
| 775 | * Keep all buildids when there is unprocessed AUX data because |
| 776 | * it is not known which ones the AUX trace hits. |
| 777 | */ |
| 778 | if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) && |
| 779 | inject->have_auxtrace && !inject->itrace_synth_opts.set) |
| 780 | dsos__hit_all(session); |
| 781 | /* |
| 782 | * The AUX areas have been removed and replaced with |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 783 | * synthesized hardware events, so clear the feature flag. |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 784 | */ |
| 785 | if (inject->itrace_synth_opts.set) { |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 786 | perf_header__clear_feat(&session->header, |
| 787 | HEADER_AUXTRACE); |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 788 | if (inject->itrace_synth_opts.last_branch || |
| 789 | inject->itrace_synth_opts.add_last_branch) |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 790 | perf_header__set_feat(&session->header, |
| 791 | HEADER_BRANCH_STACK); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 792 | } |
| 793 | session->header.data_offset = output_data_offset; |
| 794 | session->header.data_size = inject->bytes_written; |
| 795 | perf_session__write_header(session, session->evlist, fd, true); |
| 796 | } |
| 797 | |
| 798 | return ret; |
| 799 | } |
| 800 | |
| 801 | int cmd_inject(int argc, const char **argv) |
| 802 | { |
| 803 | struct perf_inject inject = { |
| 804 | .tool = { |
| 805 | .sample = perf_event__repipe_sample, |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 806 | .read = perf_event__repipe_sample, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 807 | .mmap = perf_event__repipe, |
| 808 | .mmap2 = perf_event__repipe, |
| 809 | .comm = perf_event__repipe, |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 810 | .namespaces = perf_event__repipe, |
| 811 | .cgroup = perf_event__repipe, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 812 | .fork = perf_event__repipe, |
| 813 | .exit = perf_event__repipe, |
| 814 | .lost = perf_event__repipe, |
| 815 | .lost_samples = perf_event__repipe, |
| 816 | .aux = perf_event__repipe, |
| 817 | .itrace_start = perf_event__repipe, |
| 818 | .context_switch = perf_event__repipe, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 819 | .throttle = perf_event__repipe, |
| 820 | .unthrottle = perf_event__repipe, |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 821 | .ksymbol = perf_event__repipe, |
| 822 | .bpf = perf_event__repipe, |
| 823 | .text_poke = perf_event__repipe, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 824 | .attr = perf_event__repipe_attr, |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 825 | .event_update = perf_event__repipe_event_update, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 826 | .tracing_data = perf_event__repipe_op2_synth, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 827 | .finished_round = perf_event__repipe_oe_synth, |
| 828 | .build_id = perf_event__repipe_op2_synth, |
| 829 | .id_index = perf_event__repipe_op2_synth, |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 830 | .auxtrace_info = perf_event__repipe_op2_synth, |
| 831 | .auxtrace_error = perf_event__repipe_op2_synth, |
| 832 | .time_conv = perf_event__repipe_op2_synth, |
| 833 | .thread_map = perf_event__repipe_op2_synth, |
| 834 | .cpu_map = perf_event__repipe_op2_synth, |
| 835 | .stat_config = perf_event__repipe_op2_synth, |
| 836 | .stat = perf_event__repipe_op2_synth, |
| 837 | .stat_round = perf_event__repipe_op2_synth, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 838 | .feature = perf_event__repipe_op2_synth, |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 839 | .compressed = perf_event__repipe_op4_synth, |
| 840 | .auxtrace = perf_event__repipe_auxtrace, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 841 | }, |
| 842 | .input_name = "-", |
| 843 | .samples = LIST_HEAD_INIT(inject.samples), |
| 844 | .output = { |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 845 | .path = "-", |
| 846 | .mode = PERF_DATA_MODE_WRITE, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 847 | }, |
| 848 | }; |
| 849 | struct perf_data data = { |
| 850 | .mode = PERF_DATA_MODE_READ, |
| 851 | }; |
| 852 | int ret; |
| 853 | |
| 854 | struct option options[] = { |
| 855 | OPT_BOOLEAN('b', "build-ids", &inject.build_ids, |
| 856 | "Inject build-ids into the output stream"), |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 857 | OPT_BOOLEAN(0, "buildid-all", &inject.build_id_all, |
| 858 | "Inject build-ids of all DSOs into the output stream"), |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 859 | OPT_STRING('i', "input", &inject.input_name, "file", |
| 860 | "input file name"), |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 861 | OPT_STRING('o', "output", &inject.output.path, "file", |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 862 | "output file name"), |
| 863 | OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat, |
| 864 | "Merge sched-stat and sched-switch for getting events " |
| 865 | "where and how long tasks slept"), |
| 866 | #ifdef HAVE_JITDUMP |
| 867 | OPT_BOOLEAN('j', "jit", &inject.jit_mode, "merge jitdump files into perf.data file"), |
| 868 | #endif |
| 869 | OPT_INCR('v', "verbose", &verbose, |
| 870 | "be more verbose (show build ids, etc)"), |
| 871 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", |
| 872 | "kallsyms pathname"), |
| 873 | OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"), |
| 874 | OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 875 | NULL, "opts", "Instruction Tracing options\n" |
| 876 | ITRACE_HELP, |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 877 | itrace_parse_synth_opts), |
| 878 | OPT_BOOLEAN(0, "strip", &inject.strip, |
| 879 | "strip non-synthesized events (use with --itrace)"), |
| 880 | OPT_END() |
| 881 | }; |
| 882 | const char * const inject_usage[] = { |
| 883 | "perf inject [<options>]", |
| 884 | NULL |
| 885 | }; |
| 886 | #ifndef HAVE_JITDUMP |
| 887 | set_option_nobuild(options, 'j', "jit", "NO_LIBELF=1", true); |
| 888 | #endif |
| 889 | argc = parse_options(argc, argv, options, inject_usage, 0); |
| 890 | |
| 891 | /* |
| 892 | * Any (unrecognized) arguments left? |
| 893 | */ |
| 894 | if (argc) |
| 895 | usage_with_options(inject_usage, options); |
| 896 | |
| 897 | if (inject.strip && !inject.itrace_synth_opts.set) { |
| 898 | pr_err("--strip option requires --itrace option\n"); |
| 899 | return -1; |
| 900 | } |
| 901 | |
| 902 | if (perf_data__open(&inject.output)) { |
| 903 | perror("failed to create output file"); |
| 904 | return -1; |
| 905 | } |
| 906 | |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 907 | data.path = inject.input_name; |
Olivier Deprez | 0e64123 | 2021-09-23 10:07:05 +0200 | [diff] [blame] | 908 | inject.session = perf_session__new(&data, inject.output.is_pipe, &inject.tool); |
| 909 | if (IS_ERR(inject.session)) { |
| 910 | ret = PTR_ERR(inject.session); |
| 911 | goto out_close_output; |
| 912 | } |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 913 | |
| 914 | if (zstd_init(&(inject.session->zstd_data), 0) < 0) |
| 915 | pr_warning("Decompression initialization failed.\n"); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 916 | |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 917 | if (inject.build_ids && !inject.build_id_all) { |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 918 | /* |
| 919 | * to make sure the mmap records are ordered correctly |
| 920 | * and so that the correct especially due to jitted code |
| 921 | * mmaps. We cannot generate the buildid hit list and |
| 922 | * inject the jit mmaps at the same time for now. |
| 923 | */ |
| 924 | inject.tool.ordered_events = true; |
| 925 | inject.tool.ordering_requires_timestamps = true; |
| 926 | } |
Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 927 | |
| 928 | if (inject.sched_stat) { |
| 929 | inject.tool.ordered_events = true; |
| 930 | } |
| 931 | |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 932 | #ifdef HAVE_JITDUMP |
| 933 | if (inject.jit_mode) { |
| 934 | inject.tool.mmap2 = perf_event__jit_repipe_mmap2; |
| 935 | inject.tool.mmap = perf_event__jit_repipe_mmap; |
| 936 | inject.tool.ordered_events = true; |
| 937 | inject.tool.ordering_requires_timestamps = true; |
| 938 | /* |
| 939 | * JIT MMAP injection injects all MMAP events in one go, so it |
| 940 | * does not obey finished_round semantics. |
| 941 | */ |
| 942 | inject.tool.finished_round = perf_event__drop_oe; |
| 943 | } |
| 944 | #endif |
| 945 | ret = symbol__init(&inject.session->header.env); |
| 946 | if (ret < 0) |
| 947 | goto out_delete; |
| 948 | |
| 949 | ret = __cmd_inject(&inject); |
| 950 | |
| 951 | out_delete: |
David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 952 | zstd_fini(&(inject.session->zstd_data)); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 953 | perf_session__delete(inject.session); |
Olivier Deprez | 0e64123 | 2021-09-23 10:07:05 +0200 | [diff] [blame] | 954 | out_close_output: |
| 955 | perf_data__close(&inject.output); |
Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 956 | return ret; |
| 957 | } |