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