1 // SPDX-License-Identifier: GPL-2.0 2 #include <inttypes.h> 3 #include <stdio.h> 4 #include <stdlib.h> 5 #include <stdbool.h> 6 #include <linux/kernel.h> 7 #include <linux/types.h> 8 #include <linux/perf_event.h> 9 #include "util/evsel_fprintf.h" 10 #include "util/pmu.h" 11 #include "util/pmus.h" 12 #include "trace-event.h" 13 14 struct bit_names { 15 int bit; 16 const char *name; 17 }; 18 19 static void __p_bits(char *buf, size_t size, u64 value, struct bit_names *bits) 20 { 21 bool first_bit = true; 22 int i = 0; 23 24 do { 25 if (value & bits[i].bit) { 26 buf += scnprintf(buf, size, "%s%s", first_bit ? "" : "|", bits[i].name); 27 first_bit = false; 28 } 29 } while (bits[++i].name != NULL); 30 } 31 32 static void __p_sample_type(char *buf, size_t size, u64 value) 33 { 34 #define bit_name(n) { PERF_SAMPLE_##n, #n } 35 struct bit_names bits[] = { 36 bit_name(IP), bit_name(TID), bit_name(TIME), bit_name(ADDR), 37 bit_name(READ), bit_name(CALLCHAIN), bit_name(ID), bit_name(CPU), 38 bit_name(PERIOD), bit_name(STREAM_ID), bit_name(RAW), 39 bit_name(BRANCH_STACK), bit_name(REGS_USER), bit_name(STACK_USER), 40 bit_name(IDENTIFIER), bit_name(REGS_INTR), bit_name(DATA_SRC), 41 bit_name(WEIGHT), bit_name(PHYS_ADDR), bit_name(AUX), 42 bit_name(CGROUP), bit_name(DATA_PAGE_SIZE), bit_name(CODE_PAGE_SIZE), 43 bit_name(WEIGHT_STRUCT), 44 { .name = NULL, } 45 }; 46 #undef bit_name 47 __p_bits(buf, size, value, bits); 48 } 49 50 static void __p_branch_sample_type(char *buf, size_t size, u64 value) 51 { 52 #define bit_name(n) { PERF_SAMPLE_BRANCH_##n, #n } 53 struct bit_names bits[] = { 54 bit_name(USER), bit_name(KERNEL), bit_name(HV), bit_name(ANY), 55 bit_name(ANY_CALL), bit_name(ANY_RETURN), bit_name(IND_CALL), 56 bit_name(ABORT_TX), bit_name(IN_TX), bit_name(NO_TX), 57 bit_name(COND), bit_name(CALL_STACK), bit_name(IND_JUMP), 58 bit_name(CALL), bit_name(NO_FLAGS), bit_name(NO_CYCLES), 59 bit_name(TYPE_SAVE), bit_name(HW_INDEX), bit_name(PRIV_SAVE), 60 bit_name(COUNTERS), 61 { .name = NULL, } 62 }; 63 #undef bit_name 64 __p_bits(buf, size, value, bits); 65 } 66 67 static void __p_read_format(char *buf, size_t size, u64 value) 68 { 69 #define bit_name(n) { PERF_FORMAT_##n, #n } 70 struct bit_names bits[] = { 71 bit_name(TOTAL_TIME_ENABLED), bit_name(TOTAL_TIME_RUNNING), 72 bit_name(ID), bit_name(GROUP), bit_name(LOST), 73 { .name = NULL, } 74 }; 75 #undef bit_name 76 __p_bits(buf, size, value, bits); 77 } 78 79 #define ENUM_ID_TO_STR_CASE(x) case x: return (#x); 80 static const char *stringify_perf_type_id(struct perf_pmu *pmu, u32 type) 81 { 82 if (pmu) 83 return pmu->name; 84 85 switch (type) { 86 ENUM_ID_TO_STR_CASE(PERF_TYPE_HARDWARE) 87 ENUM_ID_TO_STR_CASE(PERF_TYPE_SOFTWARE) 88 ENUM_ID_TO_STR_CASE(PERF_TYPE_TRACEPOINT) 89 ENUM_ID_TO_STR_CASE(PERF_TYPE_HW_CACHE) 90 ENUM_ID_TO_STR_CASE(PERF_TYPE_RAW) 91 ENUM_ID_TO_STR_CASE(PERF_TYPE_BREAKPOINT) 92 default: 93 return NULL; 94 } 95 } 96 97 static const char *stringify_perf_hw_id(u64 value) 98 { 99 switch (value) { 100 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CPU_CYCLES) 101 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_INSTRUCTIONS) 102 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_REFERENCES) 103 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_MISSES) 104 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BRANCH_INSTRUCTIONS) 105 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BRANCH_MISSES) 106 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BUS_CYCLES) 107 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_STALLED_CYCLES_FRONTEND) 108 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_STALLED_CYCLES_BACKEND) 109 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_REF_CPU_CYCLES) 110 default: 111 return NULL; 112 } 113 } 114 115 static const char *stringify_perf_hw_cache_id(u64 value) 116 { 117 switch (value) { 118 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_L1D) 119 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_L1I) 120 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_LL) 121 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_DTLB) 122 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_ITLB) 123 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_BPU) 124 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_NODE) 125 default: 126 return NULL; 127 } 128 } 129 130 static const char *stringify_perf_hw_cache_op_id(u64 value) 131 { 132 switch (value) { 133 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_READ) 134 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_WRITE) 135 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_PREFETCH) 136 default: 137 return NULL; 138 } 139 } 140 141 static const char *stringify_perf_hw_cache_op_result_id(u64 value) 142 { 143 switch (value) { 144 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_RESULT_ACCESS) 145 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_RESULT_MISS) 146 default: 147 return NULL; 148 } 149 } 150 151 static const char *stringify_perf_sw_id(u64 value) 152 { 153 switch (value) { 154 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CPU_CLOCK) 155 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_TASK_CLOCK) 156 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS) 157 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CONTEXT_SWITCHES) 158 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CPU_MIGRATIONS) 159 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS_MIN) 160 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS_MAJ) 161 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_ALIGNMENT_FAULTS) 162 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_EMULATION_FAULTS) 163 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_DUMMY) 164 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_BPF_OUTPUT) 165 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CGROUP_SWITCHES) 166 default: 167 return NULL; 168 } 169 } 170 #undef ENUM_ID_TO_STR_CASE 171 172 #define PRINT_ID(_s, _f) \ 173 do { \ 174 const char *__s = _s; \ 175 if (__s == NULL) \ 176 snprintf(buf, size, _f, value); \ 177 else \ 178 snprintf(buf, size, _f" (%s)", value, __s); \ 179 } while (0) 180 #define print_id_unsigned(_s) PRINT_ID(_s, "%"PRIu64) 181 #define print_id_hex(_s) PRINT_ID(_s, "%#"PRIx64) 182 183 static void __p_type_id(struct perf_pmu *pmu, char *buf, size_t size, u64 value) 184 { 185 print_id_unsigned(stringify_perf_type_id(pmu, value)); 186 } 187 188 static void __p_config_hw_id(char *buf, size_t size, u64 value) 189 { 190 print_id_hex(stringify_perf_hw_id(value)); 191 } 192 193 static void __p_config_sw_id(char *buf, size_t size, u64 value) 194 { 195 print_id_hex(stringify_perf_sw_id(value)); 196 } 197 198 static void __p_config_hw_cache_id(char *buf, size_t size, u64 value) 199 { 200 const char *hw_cache_str = stringify_perf_hw_cache_id(value & 0xff); 201 const char *hw_cache_op_str = 202 stringify_perf_hw_cache_op_id((value & 0xff00) >> 8); 203 const char *hw_cache_op_result_str = 204 stringify_perf_hw_cache_op_result_id((value & 0xff0000) >> 16); 205 206 if (hw_cache_str == NULL || hw_cache_op_str == NULL || 207 hw_cache_op_result_str == NULL) { 208 snprintf(buf, size, "%#"PRIx64, value); 209 } else { 210 snprintf(buf, size, "%#"PRIx64" (%s | %s | %s)", value, 211 hw_cache_op_result_str, hw_cache_op_str, hw_cache_str); 212 } 213 } 214 215 #ifdef HAVE_LIBTRACEEVENT 216 static void __p_config_tracepoint_id(char *buf, size_t size, u64 value) 217 { 218 char *str = tracepoint_id_to_name(value); 219 220 print_id_hex(str); 221 free(str); 222 } 223 #endif 224 225 static void __p_config_id(struct perf_pmu *pmu, char *buf, size_t size, u32 type, u64 value) 226 { 227 const char *name = perf_pmu__name_from_config(pmu, value); 228 229 if (name) { 230 print_id_hex(name); 231 return; 232 } 233 switch (type) { 234 case PERF_TYPE_HARDWARE: 235 return __p_config_hw_id(buf, size, value); 236 case PERF_TYPE_SOFTWARE: 237 return __p_config_sw_id(buf, size, value); 238 case PERF_TYPE_HW_CACHE: 239 return __p_config_hw_cache_id(buf, size, value); 240 case PERF_TYPE_TRACEPOINT: 241 #ifdef HAVE_LIBTRACEEVENT 242 return __p_config_tracepoint_id(buf, size, value); 243 #endif 244 case PERF_TYPE_RAW: 245 case PERF_TYPE_BREAKPOINT: 246 default: 247 snprintf(buf, size, "%#"PRIx64, value); 248 return; 249 } 250 } 251 252 #define BUF_SIZE 1024 253 254 #define p_hex(val) snprintf(buf, BUF_SIZE, "%#"PRIx64, (uint64_t)(val)) 255 #define p_unsigned(val) snprintf(buf, BUF_SIZE, "%"PRIu64, (uint64_t)(val)) 256 #define p_signed(val) snprintf(buf, BUF_SIZE, "%"PRId64, (int64_t)(val)) 257 #define p_sample_type(val) __p_sample_type(buf, BUF_SIZE, val) 258 #define p_branch_sample_type(val) __p_branch_sample_type(buf, BUF_SIZE, val) 259 #define p_read_format(val) __p_read_format(buf, BUF_SIZE, val) 260 #define p_type_id(val) __p_type_id(pmu, buf, BUF_SIZE, val) 261 #define p_config_id(val) __p_config_id(pmu, buf, BUF_SIZE, attr->type, val) 262 263 #define PRINT_ATTRn(_n, _f, _p, _a) \ 264 do { \ 265 if (_a || attr->_f) { \ 266 _p(attr->_f); \ 267 ret += attr__fprintf(fp, _n, buf, priv);\ 268 } \ 269 } while (0) 270 271 #define PRINT_ATTRf(_f, _p) PRINT_ATTRn(#_f, _f, _p, false) 272 273 int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr, 274 attr__fprintf_f attr__fprintf, void *priv) 275 { 276 struct perf_pmu *pmu = perf_pmus__find_by_type(attr->type); 277 char buf[BUF_SIZE]; 278 int ret = 0; 279 280 PRINT_ATTRn("type", type, p_type_id, true); 281 PRINT_ATTRf(size, p_unsigned); 282 PRINT_ATTRn("config", config, p_config_id, true); 283 PRINT_ATTRn("{ sample_period, sample_freq }", sample_period, p_unsigned, false); 284 PRINT_ATTRf(sample_type, p_sample_type); 285 PRINT_ATTRf(read_format, p_read_format); 286 287 PRINT_ATTRf(disabled, p_unsigned); 288 PRINT_ATTRf(inherit, p_unsigned); 289 PRINT_ATTRf(pinned, p_unsigned); 290 PRINT_ATTRf(exclusive, p_unsigned); 291 PRINT_ATTRf(exclude_user, p_unsigned); 292 PRINT_ATTRf(exclude_kernel, p_unsigned); 293 PRINT_ATTRf(exclude_hv, p_unsigned); 294 PRINT_ATTRf(exclude_idle, p_unsigned); 295 PRINT_ATTRf(mmap, p_unsigned); 296 PRINT_ATTRf(comm, p_unsigned); 297 PRINT_ATTRf(freq, p_unsigned); 298 PRINT_ATTRf(inherit_stat, p_unsigned); 299 PRINT_ATTRf(enable_on_exec, p_unsigned); 300 PRINT_ATTRf(task, p_unsigned); 301 PRINT_ATTRf(watermark, p_unsigned); 302 PRINT_ATTRf(precise_ip, p_unsigned); 303 PRINT_ATTRf(mmap_data, p_unsigned); 304 PRINT_ATTRf(sample_id_all, p_unsigned); 305 PRINT_ATTRf(exclude_host, p_unsigned); 306 PRINT_ATTRf(exclude_guest, p_unsigned); 307 PRINT_ATTRf(exclude_callchain_kernel, p_unsigned); 308 PRINT_ATTRf(exclude_callchain_user, p_unsigned); 309 PRINT_ATTRf(mmap2, p_unsigned); 310 PRINT_ATTRf(comm_exec, p_unsigned); 311 PRINT_ATTRf(use_clockid, p_unsigned); 312 PRINT_ATTRf(context_switch, p_unsigned); 313 PRINT_ATTRf(write_backward, p_unsigned); 314 PRINT_ATTRf(namespaces, p_unsigned); 315 PRINT_ATTRf(ksymbol, p_unsigned); 316 PRINT_ATTRf(bpf_event, p_unsigned); 317 PRINT_ATTRf(aux_output, p_unsigned); 318 PRINT_ATTRf(cgroup, p_unsigned); 319 PRINT_ATTRf(text_poke, p_unsigned); 320 PRINT_ATTRf(build_id, p_unsigned); 321 PRINT_ATTRf(inherit_thread, p_unsigned); 322 PRINT_ATTRf(remove_on_exec, p_unsigned); 323 PRINT_ATTRf(sigtrap, p_unsigned); 324 325 PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsigned, false); 326 PRINT_ATTRf(bp_type, p_unsigned); 327 PRINT_ATTRn("{ bp_addr, config1 }", bp_addr, p_hex, false); 328 PRINT_ATTRn("{ bp_len, config2 }", bp_len, p_hex, false); 329 PRINT_ATTRf(branch_sample_type, p_branch_sample_type); 330 PRINT_ATTRf(sample_regs_user, p_hex); 331 PRINT_ATTRf(sample_stack_user, p_unsigned); 332 PRINT_ATTRf(clockid, p_signed); 333 PRINT_ATTRf(sample_regs_intr, p_hex); 334 PRINT_ATTRf(aux_watermark, p_unsigned); 335 PRINT_ATTRf(sample_max_stack, p_unsigned); 336 PRINT_ATTRf(aux_sample_size, p_unsigned); 337 PRINT_ATTRf(sig_data, p_unsigned); 338 339 return ret; 340 } 341