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