1 #include "builtin.h" 2 #include "perf.h" 3 4 #include "util/parse-options.h" 5 #include "util/trace-event.h" 6 #include "util/tool.h" 7 #include "util/session.h" 8 9 #define MEM_OPERATION_LOAD "load" 10 #define MEM_OPERATION_STORE "store" 11 12 static const char *mem_operation = MEM_OPERATION_LOAD; 13 14 struct perf_mem { 15 struct perf_tool tool; 16 char const *input_name; 17 symbol_filter_t annotate_init; 18 bool hide_unresolved; 19 bool dump_raw; 20 const char *cpu_list; 21 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 22 }; 23 24 static const char * const mem_usage[] = { 25 "perf mem [<options>] {record <command> |report}", 26 NULL 27 }; 28 29 static int __cmd_record(int argc, const char **argv) 30 { 31 int rec_argc, i = 0, j; 32 const char **rec_argv; 33 char event[64]; 34 int ret; 35 36 rec_argc = argc + 4; 37 rec_argv = calloc(rec_argc + 1, sizeof(char *)); 38 if (!rec_argv) 39 return -1; 40 41 rec_argv[i++] = strdup("record"); 42 if (!strcmp(mem_operation, MEM_OPERATION_LOAD)) 43 rec_argv[i++] = strdup("-W"); 44 rec_argv[i++] = strdup("-d"); 45 rec_argv[i++] = strdup("-e"); 46 47 if (strcmp(mem_operation, MEM_OPERATION_LOAD)) 48 sprintf(event, "cpu/mem-stores/pp"); 49 else 50 sprintf(event, "cpu/mem-loads/pp"); 51 52 rec_argv[i++] = strdup(event); 53 for (j = 1; j < argc; j++, i++) 54 rec_argv[i] = argv[j]; 55 56 ret = cmd_record(i, rec_argv, NULL); 57 free(rec_argv); 58 return ret; 59 } 60 61 static int 62 dump_raw_samples(struct perf_tool *tool, 63 union perf_event *event, 64 struct perf_sample *sample, 65 struct perf_evsel *evsel __maybe_unused, 66 struct machine *machine) 67 { 68 struct perf_mem *mem = container_of(tool, struct perf_mem, tool); 69 struct addr_location al; 70 const char *fmt; 71 72 if (perf_event__preprocess_sample(event, machine, &al, sample, 73 mem->annotate_init) < 0) { 74 fprintf(stderr, "problem processing %d event, skipping it.\n", 75 event->header.type); 76 return -1; 77 } 78 79 if (al.filtered || (mem->hide_unresolved && al.sym == NULL)) 80 return 0; 81 82 if (al.map != NULL) 83 al.map->dso->hit = 1; 84 85 if (symbol_conf.field_sep) { 86 fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64 87 "%s0x%"PRIx64"%s%s:%s\n"; 88 } else { 89 fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64 90 "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n"; 91 symbol_conf.field_sep = " "; 92 } 93 94 printf(fmt, 95 sample->pid, 96 symbol_conf.field_sep, 97 sample->tid, 98 symbol_conf.field_sep, 99 event->ip.ip, 100 symbol_conf.field_sep, 101 sample->addr, 102 symbol_conf.field_sep, 103 sample->weight, 104 symbol_conf.field_sep, 105 sample->data_src, 106 symbol_conf.field_sep, 107 al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???", 108 al.sym ? al.sym->name : "???"); 109 110 return 0; 111 } 112 113 static int process_sample_event(struct perf_tool *tool, 114 union perf_event *event, 115 struct perf_sample *sample, 116 struct perf_evsel *evsel, 117 struct machine *machine) 118 { 119 return dump_raw_samples(tool, event, sample, evsel, machine); 120 } 121 122 static int report_raw_events(struct perf_mem *mem) 123 { 124 int err = -EINVAL; 125 int ret; 126 struct perf_session *session = perf_session__new(input_name, O_RDONLY, 127 0, false, &mem->tool); 128 129 if (session == NULL) 130 return -ENOMEM; 131 132 if (mem->cpu_list) { 133 ret = perf_session__cpu_bitmap(session, mem->cpu_list, 134 mem->cpu_bitmap); 135 if (ret) 136 goto out_delete; 137 } 138 139 if (symbol__init() < 0) 140 return -1; 141 142 printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n"); 143 144 err = perf_session__process_events(session, &mem->tool); 145 if (err) 146 return err; 147 148 return 0; 149 150 out_delete: 151 perf_session__delete(session); 152 return err; 153 } 154 155 static int report_events(int argc, const char **argv, struct perf_mem *mem) 156 { 157 const char **rep_argv; 158 int ret, i = 0, j, rep_argc; 159 160 if (mem->dump_raw) 161 return report_raw_events(mem); 162 163 rep_argc = argc + 3; 164 rep_argv = calloc(rep_argc + 1, sizeof(char *)); 165 if (!rep_argv) 166 return -1; 167 168 rep_argv[i++] = strdup("report"); 169 rep_argv[i++] = strdup("--mem-mode"); 170 rep_argv[i++] = strdup("-n"); /* display number of samples */ 171 172 /* 173 * there is no weight (cost) associated with stores, so don't print 174 * the column 175 */ 176 if (strcmp(mem_operation, MEM_OPERATION_LOAD)) 177 rep_argv[i++] = strdup("--sort=mem,sym,dso,symbol_daddr," 178 "dso_daddr,tlb,locked"); 179 180 for (j = 1; j < argc; j++, i++) 181 rep_argv[i] = argv[j]; 182 183 ret = cmd_report(i, rep_argv, NULL); 184 free(rep_argv); 185 return ret; 186 } 187 188 int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused) 189 { 190 struct stat st; 191 struct perf_mem mem = { 192 .tool = { 193 .sample = process_sample_event, 194 .mmap = perf_event__process_mmap, 195 .comm = perf_event__process_comm, 196 .lost = perf_event__process_lost, 197 .fork = perf_event__process_fork, 198 .build_id = perf_event__process_build_id, 199 .ordered_samples = true, 200 }, 201 .input_name = "perf.data", 202 }; 203 const struct option mem_options[] = { 204 OPT_STRING('t', "type", &mem_operation, 205 "type", "memory operations(load/store)"), 206 OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw, 207 "dump raw samples in ASCII"), 208 OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved, 209 "Only display entries resolved to a symbol"), 210 OPT_STRING('i', "input", &input_name, "file", 211 "input file name"), 212 OPT_STRING('C', "cpu", &mem.cpu_list, "cpu", 213 "list of cpus to profile"), 214 OPT_STRING('x', "field-separator", &symbol_conf.field_sep, 215 "separator", 216 "separator for columns, no spaces will be added" 217 " between columns '.' is reserved."), 218 OPT_END() 219 }; 220 221 argc = parse_options(argc, argv, mem_options, mem_usage, 222 PARSE_OPT_STOP_AT_NON_OPTION); 223 224 if (!argc || !(strncmp(argv[0], "rec", 3) || mem_operation)) 225 usage_with_options(mem_usage, mem_options); 226 227 if (!mem.input_name || !strlen(mem.input_name)) { 228 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) 229 mem.input_name = "-"; 230 else 231 mem.input_name = "perf.data"; 232 } 233 234 if (!strncmp(argv[0], "rec", 3)) 235 return __cmd_record(argc, argv); 236 else if (!strncmp(argv[0], "rep", 3)) 237 return report_events(argc, argv, &mem); 238 else 239 usage_with_options(mem_usage, mem_options); 240 241 return 0; 242 } 243