| 1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License, version 2 only, |
| 6 | * as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | */ |
| 17 | |
| 18 | #define _GNU_SOURCE |
| 19 | #define _LGPL_SOURCE |
| 20 | #include <ctype.h> |
| 21 | #include <popt.h> |
| 22 | #include <stdio.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | #include <sys/stat.h> |
| 26 | #include <sys/types.h> |
| 27 | #include <unistd.h> |
| 28 | |
| 29 | #include <urcu/list.h> |
| 30 | |
| 31 | #include <common/mi-lttng.h> |
| 32 | |
| 33 | #include "../command.h" |
| 34 | |
| 35 | #define PRINT_LINE_LEN 80 |
| 36 | |
| 37 | static char *opt_channel_name; |
| 38 | static char *opt_session_name; |
| 39 | static int opt_kernel; |
| 40 | static int opt_userspace; |
| 41 | static char *opt_type; |
| 42 | |
| 43 | #if 0 |
| 44 | /* Not implemented yet */ |
| 45 | static char *opt_cmd_name; |
| 46 | static pid_t opt_pid; |
| 47 | #endif |
| 48 | |
| 49 | enum { |
| 50 | OPT_HELP = 1, |
| 51 | OPT_TYPE, |
| 52 | OPT_USERSPACE, |
| 53 | OPT_LIST_OPTIONS, |
| 54 | }; |
| 55 | |
| 56 | static struct lttng_handle *handle; |
| 57 | static struct mi_writer *writer; |
| 58 | |
| 59 | /* |
| 60 | * Taken from the LTTng ABI |
| 61 | */ |
| 62 | enum context_type { |
| 63 | CONTEXT_PID = 0, |
| 64 | CONTEXT_PERF_COUNTER = 1, /* Backward compat. */ |
| 65 | CONTEXT_PROCNAME = 2, |
| 66 | CONTEXT_PRIO = 3, |
| 67 | CONTEXT_NICE = 4, |
| 68 | CONTEXT_VPID = 5, |
| 69 | CONTEXT_TID = 6, |
| 70 | CONTEXT_VTID = 7, |
| 71 | CONTEXT_PPID = 8, |
| 72 | CONTEXT_VPPID = 9, |
| 73 | CONTEXT_PTHREAD_ID = 10, |
| 74 | CONTEXT_HOSTNAME = 11, |
| 75 | CONTEXT_IP = 12, |
| 76 | CONTEXT_PERF_CPU_COUNTER = 13, |
| 77 | CONTEXT_PERF_THREAD_COUNTER = 14, |
| 78 | }; |
| 79 | |
| 80 | /* |
| 81 | * Taken from the Perf ABI (all enum perf_*) |
| 82 | */ |
| 83 | enum perf_type { |
| 84 | PERF_TYPE_HARDWARE = 0, |
| 85 | PERF_TYPE_SOFTWARE = 1, |
| 86 | PERF_TYPE_HW_CACHE = 3, |
| 87 | }; |
| 88 | |
| 89 | enum perf_count_hard { |
| 90 | PERF_COUNT_HW_CPU_CYCLES = 0, |
| 91 | PERF_COUNT_HW_INSTRUCTIONS = 1, |
| 92 | PERF_COUNT_HW_CACHE_REFERENCES = 2, |
| 93 | PERF_COUNT_HW_CACHE_MISSES = 3, |
| 94 | PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4, |
| 95 | PERF_COUNT_HW_BRANCH_MISSES = 5, |
| 96 | PERF_COUNT_HW_BUS_CYCLES = 6, |
| 97 | PERF_COUNT_HW_STALLED_CYCLES_FRONTEND = 7, |
| 98 | PERF_COUNT_HW_STALLED_CYCLES_BACKEND = 8, |
| 99 | }; |
| 100 | |
| 101 | enum perf_count_soft { |
| 102 | PERF_COUNT_SW_CPU_CLOCK = 0, |
| 103 | PERF_COUNT_SW_TASK_CLOCK = 1, |
| 104 | PERF_COUNT_SW_PAGE_FAULTS = 2, |
| 105 | PERF_COUNT_SW_CONTEXT_SWITCHES = 3, |
| 106 | PERF_COUNT_SW_CPU_MIGRATIONS = 4, |
| 107 | PERF_COUNT_SW_PAGE_FAULTS_MIN = 5, |
| 108 | PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6, |
| 109 | PERF_COUNT_SW_ALIGNMENT_FAULTS = 7, |
| 110 | PERF_COUNT_SW_EMULATION_FAULTS = 8, |
| 111 | }; |
| 112 | |
| 113 | /* |
| 114 | * Generalized hardware cache events: |
| 115 | * |
| 116 | * { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x |
| 117 | * { read, write, prefetch } x |
| 118 | * { accesses, misses } |
| 119 | */ |
| 120 | enum perf_hw_cache_id { |
| 121 | PERF_COUNT_HW_CACHE_L1D = 0, |
| 122 | PERF_COUNT_HW_CACHE_L1I = 1, |
| 123 | PERF_COUNT_HW_CACHE_LL = 2, |
| 124 | PERF_COUNT_HW_CACHE_DTLB = 3, |
| 125 | PERF_COUNT_HW_CACHE_ITLB = 4, |
| 126 | PERF_COUNT_HW_CACHE_BPU = 5, |
| 127 | |
| 128 | PERF_COUNT_HW_CACHE_MAX, /* non-ABI */ |
| 129 | }; |
| 130 | |
| 131 | enum perf_hw_cache_op_id { |
| 132 | PERF_COUNT_HW_CACHE_OP_READ = 0, |
| 133 | PERF_COUNT_HW_CACHE_OP_WRITE = 1, |
| 134 | PERF_COUNT_HW_CACHE_OP_PREFETCH = 2, |
| 135 | |
| 136 | PERF_COUNT_HW_CACHE_OP_MAX, /* non-ABI */ |
| 137 | }; |
| 138 | |
| 139 | enum perf_hw_cache_op_result_id { |
| 140 | PERF_COUNT_HW_CACHE_RESULT_ACCESS = 0, |
| 141 | PERF_COUNT_HW_CACHE_RESULT_MISS = 1, |
| 142 | |
| 143 | PERF_COUNT_HW_CACHE_RESULT_MAX, /* non-ABI */ |
| 144 | }; |
| 145 | |
| 146 | static struct poptOption long_options[] = { |
| 147 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ |
| 148 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, |
| 149 | {"session", 's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0}, |
| 150 | {"channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, 0, 0}, |
| 151 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, |
| 152 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, |
| 153 | {"type", 't', POPT_ARG_STRING, &opt_type, OPT_TYPE, 0, 0}, |
| 154 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
| 155 | {0, 0, 0, 0, 0, 0, 0} |
| 156 | }; |
| 157 | |
| 158 | /* |
| 159 | * Context options |
| 160 | */ |
| 161 | #define PERF_HW(optstr, name, type, hide) \ |
| 162 | { \ |
| 163 | optstr, type, hide, \ |
| 164 | .u.perf = { PERF_TYPE_HARDWARE, PERF_COUNT_HW_##name, },\ |
| 165 | } |
| 166 | |
| 167 | #define PERF_SW(optstr, name, type, hide) \ |
| 168 | { \ |
| 169 | optstr, type, hide, \ |
| 170 | .u.perf = { PERF_TYPE_SOFTWARE, PERF_COUNT_SW_##name, },\ |
| 171 | } |
| 172 | |
| 173 | #define _PERF_HW_CACHE(optstr, name, type, op, result, hide) \ |
| 174 | { \ |
| 175 | optstr, type, hide, \ |
| 176 | .u.perf = { \ |
| 177 | PERF_TYPE_HW_CACHE, \ |
| 178 | (uint64_t) PERF_COUNT_HW_CACHE_##name \ |
| 179 | | ((uint64_t) PERF_COUNT_HW_CACHE_OP_##op << 8) \ |
| 180 | | ((uint64_t) PERF_COUNT_HW_CACHE_RESULT_##result << 16), \ |
| 181 | }, \ |
| 182 | } |
| 183 | |
| 184 | #define PERF_HW_CACHE(optstr, name, type, hide) \ |
| 185 | _PERF_HW_CACHE(optstr "-loads", name, type, \ |
| 186 | READ, ACCESS, hide), \ |
| 187 | _PERF_HW_CACHE(optstr "-load-misses", name, type, \ |
| 188 | READ, MISS, hide), \ |
| 189 | _PERF_HW_CACHE(optstr "-stores", name, type, \ |
| 190 | WRITE, ACCESS, hide), \ |
| 191 | _PERF_HW_CACHE(optstr "-store-misses", name, type, \ |
| 192 | WRITE, MISS, hide), \ |
| 193 | _PERF_HW_CACHE(optstr "-prefetches", name, type, \ |
| 194 | PREFETCH, ACCESS, hide), \ |
| 195 | _PERF_HW_CACHE(optstr "-prefetch-misses", name, type, \ |
| 196 | PREFETCH, MISS, hide) |
| 197 | |
| 198 | static |
| 199 | const struct ctx_opts { |
| 200 | char *symbol; |
| 201 | enum context_type ctx_type; |
| 202 | int hide_help; /* Hide from --help */ |
| 203 | union { |
| 204 | struct { |
| 205 | uint32_t type; |
| 206 | uint64_t config; |
| 207 | } perf; |
| 208 | } u; |
| 209 | } ctx_opts[] = { |
| 210 | { "pid", CONTEXT_PID }, |
| 211 | { "procname", CONTEXT_PROCNAME }, |
| 212 | { "prio", CONTEXT_PRIO }, |
| 213 | { "nice", CONTEXT_NICE }, |
| 214 | { "vpid", CONTEXT_VPID }, |
| 215 | { "tid", CONTEXT_TID }, |
| 216 | { "pthread_id", CONTEXT_PTHREAD_ID }, |
| 217 | { "vtid", CONTEXT_VTID }, |
| 218 | { "ppid", CONTEXT_PPID }, |
| 219 | { "vppid", CONTEXT_VPPID }, |
| 220 | { "hostname", CONTEXT_HOSTNAME }, |
| 221 | { "ip", CONTEXT_IP }, |
| 222 | |
| 223 | /* Perf options */ |
| 224 | |
| 225 | /* Perf per-CPU counters */ |
| 226 | PERF_HW("perf:cpu:cpu-cycles", CPU_CYCLES, |
| 227 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 228 | PERF_HW("perf:cpu:cycles", CPU_CYCLES, |
| 229 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 230 | PERF_HW("perf:cpu:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND, |
| 231 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 232 | PERF_HW("perf:cpu:idle-cycles-frontend", STALLED_CYCLES_FRONTEND, |
| 233 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 234 | PERF_HW("perf:cpu:stalled-cycles-backend", STALLED_CYCLES_BACKEND, |
| 235 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 236 | PERF_HW("perf:cpu:idle-cycles-backend", STALLED_CYCLES_BACKEND, |
| 237 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 238 | PERF_HW("perf:cpu:instructions", INSTRUCTIONS, |
| 239 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 240 | PERF_HW("perf:cpu:cache-references", CACHE_REFERENCES, |
| 241 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 242 | PERF_HW("perf:cpu:cache-misses", CACHE_MISSES, |
| 243 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 244 | PERF_HW("perf:cpu:branch-instructions", BRANCH_INSTRUCTIONS, |
| 245 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 246 | PERF_HW("perf:cpu:branches", BRANCH_INSTRUCTIONS, |
| 247 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 248 | PERF_HW("perf:cpu:branch-misses", BRANCH_MISSES, |
| 249 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 250 | PERF_HW("perf:cpu:bus-cycles", BUS_CYCLES, |
| 251 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 252 | |
| 253 | PERF_HW_CACHE("perf:cpu:L1-dcache", L1D, |
| 254 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 255 | PERF_HW_CACHE("perf:cpu:L1-icache", L1I, |
| 256 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 257 | PERF_HW_CACHE("perf:cpu:LLC", LL, |
| 258 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 259 | PERF_HW_CACHE("perf:cpu:dTLB", DTLB, |
| 260 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 261 | _PERF_HW_CACHE("perf:cpu:iTLB-loads", ITLB, |
| 262 | CONTEXT_PERF_CPU_COUNTER, READ, ACCESS, 0), |
| 263 | _PERF_HW_CACHE("perf:cpu:iTLB-load-misses", ITLB, |
| 264 | CONTEXT_PERF_CPU_COUNTER, READ, MISS, 0), |
| 265 | _PERF_HW_CACHE("perf:cpu:branch-loads", BPU, |
| 266 | CONTEXT_PERF_CPU_COUNTER, READ, ACCESS, 0), |
| 267 | _PERF_HW_CACHE("perf:cpu:branch-load-misses", BPU, |
| 268 | CONTEXT_PERF_CPU_COUNTER, READ, MISS, 0), |
| 269 | |
| 270 | PERF_SW("perf:cpu:cpu-clock", CPU_CLOCK, |
| 271 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 272 | PERF_SW("perf:cpu:task-clock", TASK_CLOCK, |
| 273 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 274 | PERF_SW("perf:cpu:page-fault", PAGE_FAULTS, |
| 275 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 276 | PERF_SW("perf:cpu:faults", PAGE_FAULTS, |
| 277 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 278 | PERF_SW("perf:cpu:major-faults", PAGE_FAULTS_MAJ, |
| 279 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 280 | PERF_SW("perf:cpu:minor-faults", PAGE_FAULTS_MIN, |
| 281 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 282 | PERF_SW("perf:cpu:context-switches", CONTEXT_SWITCHES, |
| 283 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 284 | PERF_SW("perf:cpu:cs", CONTEXT_SWITCHES, |
| 285 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 286 | PERF_SW("perf:cpu:cpu-migrations", CPU_MIGRATIONS, |
| 287 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 288 | PERF_SW("perf:cpu:migrations", CPU_MIGRATIONS, |
| 289 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 290 | PERF_SW("perf:cpu:alignment-faults", ALIGNMENT_FAULTS, |
| 291 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 292 | PERF_SW("perf:cpu:emulation-faults", EMULATION_FAULTS, |
| 293 | CONTEXT_PERF_CPU_COUNTER, 0), |
| 294 | |
| 295 | /* Perf per-thread counters */ |
| 296 | PERF_HW("perf:thread:cpu-cycles", CPU_CYCLES, |
| 297 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 298 | PERF_HW("perf:thread:cycles", CPU_CYCLES, |
| 299 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 300 | PERF_HW("perf:thread:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND, |
| 301 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 302 | PERF_HW("perf:thread:idle-cycles-frontend", STALLED_CYCLES_FRONTEND, |
| 303 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 304 | PERF_HW("perf:thread:stalled-cycles-backend", STALLED_CYCLES_BACKEND, |
| 305 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 306 | PERF_HW("perf:thread:idle-cycles-backend", STALLED_CYCLES_BACKEND, |
| 307 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 308 | PERF_HW("perf:thread:instructions", INSTRUCTIONS, |
| 309 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 310 | PERF_HW("perf:thread:cache-references", CACHE_REFERENCES, |
| 311 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 312 | PERF_HW("perf:thread:cache-misses", CACHE_MISSES, |
| 313 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 314 | PERF_HW("perf:thread:branch-instructions", BRANCH_INSTRUCTIONS, |
| 315 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 316 | PERF_HW("perf:thread:branches", BRANCH_INSTRUCTIONS, |
| 317 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 318 | PERF_HW("perf:thread:branch-misses", BRANCH_MISSES, |
| 319 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 320 | PERF_HW("perf:thread:bus-cycles", BUS_CYCLES, |
| 321 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 322 | |
| 323 | PERF_HW_CACHE("perf:thread:L1-dcache", L1D, |
| 324 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 325 | PERF_HW_CACHE("perf:thread:L1-icache", L1I, |
| 326 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 327 | PERF_HW_CACHE("perf:thread:LLC", LL, |
| 328 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 329 | PERF_HW_CACHE("perf:thread:dTLB", DTLB, |
| 330 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 331 | _PERF_HW_CACHE("perf:thread:iTLB-loads", ITLB, |
| 332 | CONTEXT_PERF_THREAD_COUNTER, READ, ACCESS, 0), |
| 333 | _PERF_HW_CACHE("perf:thread:iTLB-load-misses", ITLB, |
| 334 | CONTEXT_PERF_THREAD_COUNTER, READ, MISS, 0), |
| 335 | _PERF_HW_CACHE("perf:thread:branch-loads", BPU, |
| 336 | CONTEXT_PERF_THREAD_COUNTER, READ, ACCESS, 0), |
| 337 | _PERF_HW_CACHE("perf:thread:branch-load-misses", BPU, |
| 338 | CONTEXT_PERF_THREAD_COUNTER, READ, MISS, 0), |
| 339 | |
| 340 | PERF_SW("perf:thread:cpu-clock", CPU_CLOCK, |
| 341 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 342 | PERF_SW("perf:thread:task-clock", TASK_CLOCK, |
| 343 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 344 | PERF_SW("perf:thread:page-fault", PAGE_FAULTS, |
| 345 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 346 | PERF_SW("perf:thread:faults", PAGE_FAULTS, |
| 347 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 348 | PERF_SW("perf:thread:major-faults", PAGE_FAULTS_MAJ, |
| 349 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 350 | PERF_SW("perf:thread:minor-faults", PAGE_FAULTS_MIN, |
| 351 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 352 | PERF_SW("perf:thread:context-switches", CONTEXT_SWITCHES, |
| 353 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 354 | PERF_SW("perf:thread:cs", CONTEXT_SWITCHES, |
| 355 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 356 | PERF_SW("perf:thread:cpu-migrations", CPU_MIGRATIONS, |
| 357 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 358 | PERF_SW("perf:thread:migrations", CPU_MIGRATIONS, |
| 359 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 360 | PERF_SW("perf:thread:alignment-faults", ALIGNMENT_FAULTS, |
| 361 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 362 | PERF_SW("perf:thread:emulation-faults", EMULATION_FAULTS, |
| 363 | CONTEXT_PERF_THREAD_COUNTER, 0), |
| 364 | |
| 365 | /* |
| 366 | * Perf per-CPU counters, backward compatibilty for names. |
| 367 | * Hidden from help listing. |
| 368 | */ |
| 369 | PERF_HW("perf:cpu-cycles", CPU_CYCLES, |
| 370 | CONTEXT_PERF_COUNTER, 1), |
| 371 | PERF_HW("perf:cycles", CPU_CYCLES, |
| 372 | CONTEXT_PERF_COUNTER, 1), |
| 373 | PERF_HW("perf:stalled-cycles-frontend", STALLED_CYCLES_FRONTEND, |
| 374 | CONTEXT_PERF_COUNTER, 1), |
| 375 | PERF_HW("perf:idle-cycles-frontend", STALLED_CYCLES_FRONTEND, |
| 376 | CONTEXT_PERF_COUNTER, 1), |
| 377 | PERF_HW("perf:stalled-cycles-backend", STALLED_CYCLES_BACKEND, |
| 378 | CONTEXT_PERF_COUNTER, 1), |
| 379 | PERF_HW("perf:idle-cycles-backend", STALLED_CYCLES_BACKEND, |
| 380 | CONTEXT_PERF_COUNTER, 1), |
| 381 | PERF_HW("perf:instructions", INSTRUCTIONS, |
| 382 | CONTEXT_PERF_COUNTER, 1), |
| 383 | PERF_HW("perf:cache-references", CACHE_REFERENCES, |
| 384 | CONTEXT_PERF_COUNTER, 1), |
| 385 | PERF_HW("perf:cache-misses", CACHE_MISSES, |
| 386 | CONTEXT_PERF_COUNTER, 1), |
| 387 | PERF_HW("perf:branch-instructions", BRANCH_INSTRUCTIONS, |
| 388 | CONTEXT_PERF_COUNTER, 1), |
| 389 | PERF_HW("perf:branches", BRANCH_INSTRUCTIONS, |
| 390 | CONTEXT_PERF_COUNTER, 1), |
| 391 | PERF_HW("perf:branch-misses", BRANCH_MISSES, |
| 392 | CONTEXT_PERF_COUNTER, 1), |
| 393 | PERF_HW("perf:bus-cycles", BUS_CYCLES, |
| 394 | CONTEXT_PERF_COUNTER, 1), |
| 395 | |
| 396 | PERF_HW_CACHE("perf:L1-dcache", L1D, |
| 397 | CONTEXT_PERF_COUNTER, 1), |
| 398 | PERF_HW_CACHE("perf:L1-icache", L1I, |
| 399 | CONTEXT_PERF_COUNTER, 1), |
| 400 | PERF_HW_CACHE("perf:LLC", LL, |
| 401 | CONTEXT_PERF_COUNTER, 1), |
| 402 | PERF_HW_CACHE("perf:dTLB", DTLB, |
| 403 | CONTEXT_PERF_COUNTER, 1), |
| 404 | _PERF_HW_CACHE("perf:iTLB-loads", ITLB, |
| 405 | CONTEXT_PERF_COUNTER, READ, ACCESS, 1), |
| 406 | _PERF_HW_CACHE("perf:iTLB-load-misses", ITLB, |
| 407 | CONTEXT_PERF_COUNTER, READ, MISS, 1), |
| 408 | _PERF_HW_CACHE("perf:branch-loads", BPU, |
| 409 | CONTEXT_PERF_COUNTER, READ, ACCESS, 1), |
| 410 | _PERF_HW_CACHE("perf:branch-load-misses", BPU, |
| 411 | CONTEXT_PERF_COUNTER, READ, MISS, 1), |
| 412 | |
| 413 | PERF_SW("perf:cpu-clock", CPU_CLOCK, |
| 414 | CONTEXT_PERF_COUNTER, 1), |
| 415 | PERF_SW("perf:task-clock", TASK_CLOCK, |
| 416 | CONTEXT_PERF_COUNTER, 1), |
| 417 | PERF_SW("perf:page-fault", PAGE_FAULTS, |
| 418 | CONTEXT_PERF_COUNTER, 1), |
| 419 | PERF_SW("perf:faults", PAGE_FAULTS, |
| 420 | CONTEXT_PERF_COUNTER, 1), |
| 421 | PERF_SW("perf:major-faults", PAGE_FAULTS_MAJ, |
| 422 | CONTEXT_PERF_COUNTER, 1), |
| 423 | PERF_SW("perf:minor-faults", PAGE_FAULTS_MIN, |
| 424 | CONTEXT_PERF_COUNTER, 1), |
| 425 | PERF_SW("perf:context-switches", CONTEXT_SWITCHES, |
| 426 | CONTEXT_PERF_COUNTER, 1), |
| 427 | PERF_SW("perf:cs", CONTEXT_SWITCHES, |
| 428 | CONTEXT_PERF_COUNTER, 1), |
| 429 | PERF_SW("perf:cpu-migrations", CPU_MIGRATIONS, |
| 430 | CONTEXT_PERF_COUNTER, 1), |
| 431 | PERF_SW("perf:migrations", CPU_MIGRATIONS, |
| 432 | CONTEXT_PERF_COUNTER, 1), |
| 433 | PERF_SW("perf:alignment-faults", ALIGNMENT_FAULTS, |
| 434 | CONTEXT_PERF_COUNTER, 1), |
| 435 | PERF_SW("perf:emulation-faults", EMULATION_FAULTS, |
| 436 | CONTEXT_PERF_COUNTER, 1), |
| 437 | |
| 438 | { NULL, -1 }, /* Closure */ |
| 439 | }; |
| 440 | |
| 441 | #undef PERF_HW_CACHE |
| 442 | #undef _PERF_HW_CACHE |
| 443 | #undef PERF_SW |
| 444 | #undef PERF_HW |
| 445 | |
| 446 | /* |
| 447 | * Context type for command line option parsing. |
| 448 | */ |
| 449 | struct ctx_type { |
| 450 | const struct ctx_opts *opt; |
| 451 | struct cds_list_head list; |
| 452 | }; |
| 453 | |
| 454 | /* |
| 455 | * List of context type. Use to enable multiple context on a single command |
| 456 | * line entry. |
| 457 | */ |
| 458 | struct ctx_type_list { |
| 459 | struct cds_list_head head; |
| 460 | } ctx_type_list = { |
| 461 | .head = CDS_LIST_HEAD_INIT(ctx_type_list.head), |
| 462 | }; |
| 463 | |
| 464 | /* |
| 465 | * Pretty print context type. |
| 466 | */ |
| 467 | static void print_ctx_type(FILE *ofp) |
| 468 | { |
| 469 | const char *indent = " "; |
| 470 | int indent_len = strlen(indent); |
| 471 | int len, i = 0; |
| 472 | |
| 473 | fprintf(ofp, "%s", indent); |
| 474 | len = indent_len; |
| 475 | while (ctx_opts[i].symbol != NULL) { |
| 476 | if (!ctx_opts[i].hide_help) { |
| 477 | if (len > indent_len) { |
| 478 | if (len + strlen(ctx_opts[i].symbol) + 2 |
| 479 | >= PRINT_LINE_LEN) { |
| 480 | fprintf(ofp, ",\n"); |
| 481 | fprintf(ofp, "%s", indent); |
| 482 | len = indent_len; |
| 483 | } else { |
| 484 | len += fprintf(ofp, ", "); |
| 485 | } |
| 486 | } |
| 487 | len += fprintf(ofp, "%s", ctx_opts[i].symbol); |
| 488 | } |
| 489 | i++; |
| 490 | } |
| 491 | } |
| 492 | |
| 493 | /* |
| 494 | * usage |
| 495 | */ |
| 496 | static void usage(FILE *ofp) |
| 497 | { |
| 498 | fprintf(ofp, "usage: lttng add-context -t TYPE [-k|-u] [OPTIONS]\n"); |
| 499 | fprintf(ofp, "\n"); |
| 500 | fprintf(ofp, "If no channel is given (-c), the context is added to\n"); |
| 501 | fprintf(ofp, "all channels.\n"); |
| 502 | fprintf(ofp, "\n"); |
| 503 | fprintf(ofp, "Otherwise the context is added only to the channel (-c).\n"); |
| 504 | fprintf(ofp, "\n"); |
| 505 | fprintf(ofp, "Exactly one domain (-k or -u) must be specified.\n"); |
| 506 | fprintf(ofp, "\n"); |
| 507 | fprintf(ofp, "Options:\n"); |
| 508 | fprintf(ofp, " -h, --help Show this help\n"); |
| 509 | fprintf(ofp, " --list-options Simple listing of options\n"); |
| 510 | fprintf(ofp, " -s, --session NAME Apply to session name\n"); |
| 511 | fprintf(ofp, " -c, --channel NAME Apply to channel\n"); |
| 512 | fprintf(ofp, " -k, --kernel Apply to the kernel tracer\n"); |
| 513 | fprintf(ofp, " -u, --userspace Apply to the user-space tracer\n"); |
| 514 | fprintf(ofp, "\n"); |
| 515 | fprintf(ofp, "Context:\n"); |
| 516 | fprintf(ofp, " -t, --type TYPE Context type. You can repeat that option on\n"); |
| 517 | fprintf(ofp, " the command line to specify multiple contexts at once.\n"); |
| 518 | fprintf(ofp, " (--kernel preempts --userspace)\n"); |
| 519 | fprintf(ofp, " TYPE can be one of the strings below:\n"); |
| 520 | print_ctx_type(ofp); |
| 521 | fprintf(ofp, "\n"); |
| 522 | fprintf(ofp, "Note that the vpid, vppid and vtid context types represent the virtual process id,\n" |
| 523 | "virtual parent process id and virtual thread id as seen from the current execution context\n" |
| 524 | "as opposed to the pid, ppid and tid which are kernel internal data structures.\n\n"); |
| 525 | fprintf(ofp, "Example:\n"); |
| 526 | fprintf(ofp, "This command will add the context information 'prio' and two per-cpu\n" |
| 527 | "perf counters (hardware branch misses and cache misses), to all channels\n" |
| 528 | "in the trace data output:\n"); |
| 529 | fprintf(ofp, "# lttng add-context -k -t prio -t perf:cpu:branch-misses -t perf:cpu:cache-misses\n"); |
| 530 | fprintf(ofp, "\n"); |
| 531 | } |
| 532 | |
| 533 | /* |
| 534 | * Find context numerical value from string. |
| 535 | */ |
| 536 | static int find_ctx_type_idx(const char *opt) |
| 537 | { |
| 538 | int ret = -1, i = 0; |
| 539 | |
| 540 | while (ctx_opts[i].symbol != NULL) { |
| 541 | if (strcmp(opt, ctx_opts[i].symbol) == 0) { |
| 542 | ret = i; |
| 543 | goto end; |
| 544 | } |
| 545 | i++; |
| 546 | } |
| 547 | |
| 548 | end: |
| 549 | return ret; |
| 550 | } |
| 551 | |
| 552 | /* |
| 553 | * Add context to channel or event. |
| 554 | */ |
| 555 | static int add_context(char *session_name) |
| 556 | { |
| 557 | int ret = CMD_SUCCESS, warn = 0, success = 0; |
| 558 | struct lttng_event_context context; |
| 559 | struct lttng_domain dom; |
| 560 | struct ctx_type *type; |
| 561 | char *ptr; |
| 562 | |
| 563 | memset(&context, 0, sizeof(context)); |
| 564 | memset(&dom, 0, sizeof(dom)); |
| 565 | |
| 566 | if (opt_kernel) { |
| 567 | dom.type = LTTNG_DOMAIN_KERNEL; |
| 568 | } else if (opt_userspace) { |
| 569 | dom.type = LTTNG_DOMAIN_UST; |
| 570 | } else { |
| 571 | print_missing_domain(); |
| 572 | ret = CMD_ERROR; |
| 573 | goto error; |
| 574 | } |
| 575 | |
| 576 | handle = lttng_create_handle(session_name, &dom); |
| 577 | if (handle == NULL) { |
| 578 | ret = CMD_ERROR; |
| 579 | goto error; |
| 580 | } |
| 581 | |
| 582 | if (lttng_opt_mi) { |
| 583 | /* Open a contexts element */ |
| 584 | ret = mi_lttng_writer_open_element(writer, config_element_contexts); |
| 585 | if (ret) { |
| 586 | goto error; |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | /* Iterate over all the context types given */ |
| 591 | cds_list_for_each_entry(type, &ctx_type_list.head, list) { |
| 592 | context.ctx = (enum lttng_event_context_type) type->opt->ctx_type; |
| 593 | switch (context.ctx) { |
| 594 | case LTTNG_EVENT_CONTEXT_PERF_COUNTER: |
| 595 | case LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER: |
| 596 | case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER: |
| 597 | context.u.perf_counter.type = type->opt->u.perf.type; |
| 598 | context.u.perf_counter.config = type->opt->u.perf.config; |
| 599 | strncpy(context.u.perf_counter.name, type->opt->symbol, |
| 600 | LTTNG_SYMBOL_NAME_LEN); |
| 601 | context.u.perf_counter.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0'; |
| 602 | /* Replace : and - by _ */ |
| 603 | while ((ptr = strchr(context.u.perf_counter.name, '-')) != NULL) { |
| 604 | *ptr = '_'; |
| 605 | } |
| 606 | while ((ptr = strchr(context.u.perf_counter.name, ':')) != NULL) { |
| 607 | *ptr = '_'; |
| 608 | } |
| 609 | break; |
| 610 | default: |
| 611 | break; |
| 612 | } |
| 613 | DBG("Adding context..."); |
| 614 | |
| 615 | if (lttng_opt_mi) { |
| 616 | /* We leave context open the update the success of the command */ |
| 617 | ret = mi_lttng_context(writer, &context, 1); |
| 618 | if (ret) { |
| 619 | ret = CMD_ERROR; |
| 620 | goto error; |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | ret = lttng_add_context(handle, &context, NULL, opt_channel_name); |
| 625 | if (ret < 0) { |
| 626 | ERR("%s: %s", type->opt->symbol, lttng_strerror(ret)); |
| 627 | warn = 1; |
| 628 | success = 0; |
| 629 | } else { |
| 630 | if (opt_channel_name) { |
| 631 | MSG("%s context %s added to channel %s", |
| 632 | opt_kernel ? "kernel" : "UST", type->opt->symbol, |
| 633 | opt_channel_name); |
| 634 | } else { |
| 635 | MSG("%s context %s added to all channels", |
| 636 | opt_kernel ? "kernel" : "UST", type->opt->symbol) |
| 637 | } |
| 638 | success = 1; |
| 639 | } |
| 640 | |
| 641 | if (lttng_opt_mi) { |
| 642 | /* Is the single operation a success ? */ |
| 643 | ret = mi_lttng_writer_write_element_bool(writer, |
| 644 | mi_lttng_element_success, success); |
| 645 | if (ret) { |
| 646 | ret = CMD_ERROR; |
| 647 | goto error; |
| 648 | } |
| 649 | |
| 650 | /* Close the context element */ |
| 651 | ret = mi_lttng_writer_close_element(writer); |
| 652 | if (ret) { |
| 653 | ret = CMD_ERROR; |
| 654 | goto error; |
| 655 | } |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | if (lttng_opt_mi) { |
| 660 | /* Close contexts element */ |
| 661 | ret = mi_lttng_writer_close_element(writer); |
| 662 | if (ret) { |
| 663 | goto error; |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | ret = CMD_SUCCESS; |
| 668 | |
| 669 | error: |
| 670 | lttng_destroy_handle(handle); |
| 671 | |
| 672 | /* |
| 673 | * This means that at least one add_context failed and tells the user to |
| 674 | * look on stderr for error(s). |
| 675 | */ |
| 676 | if (!ret && warn) { |
| 677 | ret = CMD_WARNING; |
| 678 | } |
| 679 | return ret; |
| 680 | } |
| 681 | |
| 682 | /* |
| 683 | * Add context to channel or event. |
| 684 | */ |
| 685 | int cmd_add_context(int argc, const char **argv) |
| 686 | { |
| 687 | int index, opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS; |
| 688 | int success = 1; |
| 689 | static poptContext pc; |
| 690 | struct ctx_type *type, *tmptype; |
| 691 | char *session_name = NULL; |
| 692 | |
| 693 | if (argc < 2) { |
| 694 | usage(stderr); |
| 695 | ret = CMD_ERROR; |
| 696 | goto end; |
| 697 | } |
| 698 | |
| 699 | pc = poptGetContext(NULL, argc, argv, long_options, 0); |
| 700 | poptReadDefaultConfig(pc, 0); |
| 701 | |
| 702 | while ((opt = poptGetNextOpt(pc)) != -1) { |
| 703 | switch (opt) { |
| 704 | case OPT_HELP: |
| 705 | usage(stdout); |
| 706 | goto end; |
| 707 | case OPT_TYPE: |
| 708 | /* |
| 709 | * Look up the index of opt_type in ctx_opts[] first, so we don't |
| 710 | * have to free(type) on failure. |
| 711 | */ |
| 712 | index = find_ctx_type_idx(opt_type); |
| 713 | if (index < 0) { |
| 714 | ERR("Unknown context type %s", opt_type); |
| 715 | ret = CMD_ERROR; |
| 716 | goto end; |
| 717 | } |
| 718 | |
| 719 | type = zmalloc(sizeof(struct ctx_type)); |
| 720 | if (type == NULL) { |
| 721 | PERROR("malloc ctx_type"); |
| 722 | ret = CMD_FATAL; |
| 723 | goto end; |
| 724 | } |
| 725 | |
| 726 | type->opt = &ctx_opts[index]; |
| 727 | if (type->opt->symbol == NULL) { |
| 728 | ERR("Unknown context type %s", opt_type); |
| 729 | free(type); |
| 730 | ret = CMD_ERROR; |
| 731 | goto end; |
| 732 | } else { |
| 733 | cds_list_add_tail(&type->list, &ctx_type_list.head); |
| 734 | } |
| 735 | break; |
| 736 | case OPT_USERSPACE: |
| 737 | opt_userspace = 1; |
| 738 | #if 0 |
| 739 | opt_cmd_name = poptGetOptArg(pc); |
| 740 | #endif |
| 741 | break; |
| 742 | case OPT_LIST_OPTIONS: |
| 743 | list_cmd_options(stdout, long_options); |
| 744 | goto end; |
| 745 | default: |
| 746 | usage(stderr); |
| 747 | ret = CMD_UNDEFINED; |
| 748 | goto end; |
| 749 | } |
| 750 | } |
| 751 | |
| 752 | if (!opt_type) { |
| 753 | ERR("Missing mandatory -t TYPE"); |
| 754 | usage(stderr); |
| 755 | ret = CMD_ERROR; |
| 756 | goto end; |
| 757 | } |
| 758 | |
| 759 | if (!opt_session_name) { |
| 760 | session_name = get_session_name(); |
| 761 | if (session_name == NULL) { |
| 762 | ret = CMD_ERROR; |
| 763 | goto end; |
| 764 | } |
| 765 | } else { |
| 766 | session_name = opt_session_name; |
| 767 | } |
| 768 | |
| 769 | /* Mi check */ |
| 770 | if (lttng_opt_mi) { |
| 771 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); |
| 772 | if (!writer) { |
| 773 | ret = -LTTNG_ERR_NOMEM; |
| 774 | goto end; |
| 775 | } |
| 776 | |
| 777 | /* Open command element */ |
| 778 | ret = mi_lttng_writer_command_open(writer, |
| 779 | mi_lttng_element_command_add_context); |
| 780 | if (ret) { |
| 781 | ret = CMD_ERROR; |
| 782 | goto end; |
| 783 | } |
| 784 | |
| 785 | /* Open output element */ |
| 786 | ret = mi_lttng_writer_open_element(writer, |
| 787 | mi_lttng_element_command_output); |
| 788 | if (ret) { |
| 789 | ret = CMD_ERROR; |
| 790 | goto end; |
| 791 | } |
| 792 | } |
| 793 | |
| 794 | command_ret = add_context(session_name); |
| 795 | if (command_ret) { |
| 796 | success = 0; |
| 797 | } |
| 798 | |
| 799 | /* Mi closing */ |
| 800 | if (lttng_opt_mi) { |
| 801 | /* Close output element */ |
| 802 | ret = mi_lttng_writer_close_element(writer); |
| 803 | if (ret) { |
| 804 | ret = CMD_ERROR; |
| 805 | goto end; |
| 806 | } |
| 807 | |
| 808 | /* Success ? */ |
| 809 | ret = mi_lttng_writer_write_element_bool(writer, |
| 810 | mi_lttng_element_command_success, success); |
| 811 | if (ret) { |
| 812 | ret = CMD_ERROR; |
| 813 | goto end; |
| 814 | } |
| 815 | |
| 816 | /* Command element close */ |
| 817 | ret = mi_lttng_writer_command_close(writer); |
| 818 | if (ret) { |
| 819 | ret = CMD_ERROR; |
| 820 | goto end; |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | end: |
| 825 | if (!opt_session_name) { |
| 826 | free(session_name); |
| 827 | } |
| 828 | |
| 829 | /* Mi clean-up */ |
| 830 | if (writer && mi_lttng_writer_destroy(writer)) { |
| 831 | /* Preserve original error code */ |
| 832 | ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL; |
| 833 | } |
| 834 | |
| 835 | /* Cleanup allocated memory */ |
| 836 | cds_list_for_each_entry_safe(type, tmptype, &ctx_type_list.head, list) { |
| 837 | free(type); |
| 838 | } |
| 839 | |
| 840 | /* Overwrite ret if an error occurred during add_context() */ |
| 841 | ret = command_ret ? command_ret : ret; |
| 842 | |
| 843 | poptFreeContext(pc); |
| 844 | return ret; |
| 845 | } |