#include "builtin.h" #include "perf.h" #include "util/parse-options.h" #include "util/trace-event.h" #include "util/tool.h" #include "util/session.h" #define MEM_OPERATION_LOAD "load" #define MEM_OPERATION_STORE "store" static const char *mem_operation = MEM_OPERATION_LOAD; struct perf_mem { struct perf_tool tool; char const *input_name; symbol_filter_t annotate_init; bool hide_unresolved; bool dump_raw; const char *cpu_list; DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); }; static const char * const mem_usage[] = { "perf mem [<options>] {record <command> |report}", NULL }; static int __cmd_record(int argc, const char **argv) { int rec_argc, i = 0, j; const char **rec_argv; char event[64]; int ret; rec_argc = argc + 4; rec_argv = calloc(rec_argc + 1, sizeof(char *)); if (!rec_argv) return -1; rec_argv[i++] = strdup("record"); if (!strcmp(mem_operation, MEM_OPERATION_LOAD)) rec_argv[i++] = strdup("-W"); rec_argv[i++] = strdup("-d"); rec_argv[i++] = strdup("-e"); if (strcmp(mem_operation, MEM_OPERATION_LOAD)) sprintf(event, "cpu/mem-stores/pp"); else sprintf(event, "cpu/mem-loads/pp"); rec_argv[i++] = strdup(event); for (j = 1; j < argc; j++, i++) rec_argv[i] = argv[j]; ret = cmd_record(i, rec_argv, NULL); free(rec_argv); return ret; } static int dump_raw_samples(struct perf_tool *tool, union perf_event *event, struct perf_sample *sample, struct perf_evsel *evsel __maybe_unused, struct machine *machine) { struct perf_mem *mem = container_of(tool, struct perf_mem, tool); struct addr_location al; const char *fmt; if (perf_event__preprocess_sample(event, machine, &al, sample, mem->annotate_init) < 0) { fprintf(stderr, "problem processing %d event, skipping it.\n", event->header.type); return -1; } if (al.filtered || (mem->hide_unresolved && al.sym == NULL)) return 0; if (al.map != NULL) al.map->dso->hit = 1; if (symbol_conf.field_sep) { fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64 "%s0x%"PRIx64"%s%s:%s\n"; } else { fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64 "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n"; symbol_conf.field_sep = " "; } printf(fmt, sample->pid, symbol_conf.field_sep, sample->tid, symbol_conf.field_sep, event->ip.ip, symbol_conf.field_sep, sample->addr, symbol_conf.field_sep, sample->weight, symbol_conf.field_sep, sample->data_src, symbol_conf.field_sep, al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???", al.sym ? al.sym->name : "???"); return 0; } static int process_sample_event(struct perf_tool *tool, union perf_event *event, struct perf_sample *sample, struct perf_evsel *evsel, struct machine *machine) { return dump_raw_samples(tool, event, sample, evsel, machine); } static int report_raw_events(struct perf_mem *mem) { int err = -EINVAL; int ret; struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0, false, &mem->tool); if (session == NULL) return -ENOMEM; if (mem->cpu_list) { ret = perf_session__cpu_bitmap(session, mem->cpu_list, mem->cpu_bitmap); if (ret) goto out_delete; } if (symbol__init() < 0) return -1; printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n"); err = perf_session__process_events(session, &mem->tool); if (err) return err; return 0; out_delete: perf_session__delete(session); return err; } static int report_events(int argc, const char **argv, struct perf_mem *mem) { const char **rep_argv; int ret, i = 0, j, rep_argc; if (mem->dump_raw) return report_raw_events(mem); rep_argc = argc + 3; rep_argv = calloc(rep_argc + 1, sizeof(char *)); if (!rep_argv) return -1; rep_argv[i++] = strdup("report"); rep_argv[i++] = strdup("--mem-mode"); rep_argv[i++] = strdup("-n"); /* display number of samples */ /* * there is no weight (cost) associated with stores, so don't print * the column */ if (strcmp(mem_operation, MEM_OPERATION_LOAD)) rep_argv[i++] = strdup("--sort=mem,sym,dso,symbol_daddr," "dso_daddr,tlb,locked"); for (j = 1; j < argc; j++, i++) rep_argv[i] = argv[j]; ret = cmd_report(i, rep_argv, NULL); free(rep_argv); return ret; } int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused) { struct stat st; struct perf_mem mem = { .tool = { .sample = process_sample_event, .mmap = perf_event__process_mmap, .comm = perf_event__process_comm, .lost = perf_event__process_lost, .fork = perf_event__process_fork, .build_id = perf_event__process_build_id, .ordered_samples = true, }, .input_name = "perf.data", }; const struct option mem_options[] = { OPT_STRING('t', "type", &mem_operation, "type", "memory operations(load/store)"), OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw, "dump raw samples in ASCII"), OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved, "Only display entries resolved to a symbol"), OPT_STRING('i', "input", &input_name, "file", "input file name"), OPT_STRING('C', "cpu", &mem.cpu_list, "cpu", "list of cpus to profile"), OPT_STRING('x', "field-separator", &symbol_conf.field_sep, "separator", "separator for columns, no spaces will be added" " between columns '.' is reserved."), OPT_END() }; argc = parse_options(argc, argv, mem_options, mem_usage, PARSE_OPT_STOP_AT_NON_OPTION); if (!argc || !(strncmp(argv[0], "rec", 3) || mem_operation)) usage_with_options(mem_usage, mem_options); if (!mem.input_name || !strlen(mem.input_name)) { if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) mem.input_name = "-"; else mem.input_name = "perf.data"; } if (!strncmp(argv[0], "rec", 3)) return __cmd_record(argc, argv); else if (!strncmp(argv[0], "rep", 3)) return report_events(argc, argv, &mem); else usage_with_options(mem_usage, mem_options); return 0; }