341 lines · c
1// SPDX-License-Identifier: GPL-2.02#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 14struct bit_names {15 int bit;16 const char *name;17};18 19static 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 32static 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_name47 __p_bits(buf, size, value, bits);48}49 50static 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_name64 __p_bits(buf, size, value, bits);65}66 67static 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_name76 __p_bits(buf, size, value, bits);77}78 79#define ENUM_ID_TO_STR_CASE(x) case x: return (#x);80static 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 97static 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 115static 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 130static 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 141static 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 151static 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_CASE171 172#define PRINT_ID(_s, _f) \173do { \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 183static 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 188static void __p_config_hw_id(char *buf, size_t size, u64 value)189{190 print_id_hex(stringify_perf_hw_id(value));191}192 193static void __p_config_sw_id(char *buf, size_t size, u64 value)194{195 print_id_hex(stringify_perf_sw_id(value));196}197 198static 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_LIBTRACEEVENT216static 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#endif224 225static 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_LIBTRACEEVENT242 return __p_config_tracepoint_id(buf, size, value);243#endif244 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 1024253 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) \264do { \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 273int 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