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 #include "util/data.h" 9 10 #define MEM_OPERATION_LOAD "load" 11 #define MEM_OPERATION_STORE "store" 12 13 static const char *mem_operation = MEM_OPERATION_LOAD; 14 15 struct perf_mem { 16 struct perf_tool tool; 17 char const *input_name; 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 int __cmd_record(int argc, const char **argv) 25 { 26 int rec_argc, i = 0, j; 27 const char **rec_argv; 28 char event[64]; 29 int ret; 30 31 rec_argc = argc + 4; 32 rec_argv = calloc(rec_argc + 1, sizeof(char *)); 33 if (!rec_argv) 34 return -1; 35 36 rec_argv[i++] = strdup("record"); 37 if (!strcmp(mem_operation, MEM_OPERATION_LOAD)) 38 rec_argv[i++] = strdup("-W"); 39 rec_argv[i++] = strdup("-d"); 40 rec_argv[i++] = strdup("-e"); 41 42 if (strcmp(mem_operation, MEM_OPERATION_LOAD)) 43 sprintf(event, "cpu/mem-stores/pp"); 44 else 45 sprintf(event, "cpu/mem-loads/pp"); 46 47 rec_argv[i++] = strdup(event); 48 for (j = 1; j < argc; j++, i++) 49 rec_argv[i] = argv[j]; 50 51 ret = cmd_record(i, rec_argv, NULL); 52 free(rec_argv); 53 return ret; 54 } 55 56 static int 57 dump_raw_samples(struct perf_tool *tool, 58 union perf_event *event, 59 struct perf_sample *sample, 60 struct machine *machine) 61 { 62 struct perf_mem *mem = container_of(tool, struct perf_mem, tool); 63 struct addr_location al; 64 const char *fmt; 65 66 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { 67 fprintf(stderr, "problem processing %d event, skipping it.\n", 68 event->header.type); 69 return -1; 70 } 71 72 if (al.filtered || (mem->hide_unresolved && al.sym == NULL)) 73 return 0; 74 75 if (al.map != NULL) 76 al.map->dso->hit = 1; 77 78 if (symbol_conf.field_sep) { 79 fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64 80 "%s0x%"PRIx64"%s%s:%s\n"; 81 } else { 82 fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64 83 "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n"; 84 symbol_conf.field_sep = " "; 85 } 86 87 printf(fmt, 88 sample->pid, 89 symbol_conf.field_sep, 90 sample->tid, 91 symbol_conf.field_sep, 92 sample->ip, 93 symbol_conf.field_sep, 94 sample->addr, 95 symbol_conf.field_sep, 96 sample->weight, 97 symbol_conf.field_sep, 98 sample->data_src, 99 symbol_conf.field_sep, 100 al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???", 101 al.sym ? al.sym->name : "???"); 102 103 return 0; 104 } 105 106 static int process_sample_event(struct perf_tool *tool, 107 union perf_event *event, 108 struct perf_sample *sample, 109 struct perf_evsel *evsel __maybe_unused, 110 struct machine *machine) 111 { 112 return dump_raw_samples(tool, event, sample, machine); 113 } 114 115 static int report_raw_events(struct perf_mem *mem) 116 { 117 struct perf_data_file file = { 118 .path = input_name, 119 .mode = PERF_DATA_MODE_READ, 120 }; 121 int err = -EINVAL; 122 int ret; 123 struct perf_session *session = perf_session__new(&file, false, 124 &mem->tool); 125 126 if (session == NULL) 127 return -1; 128 129 if (mem->cpu_list) { 130 ret = perf_session__cpu_bitmap(session, mem->cpu_list, 131 mem->cpu_bitmap); 132 if (ret) 133 goto out_delete; 134 } 135 136 if (symbol__init(&session->header.env) < 0) 137 return -1; 138 139 printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n"); 140 141 err = perf_session__process_events(session, &mem->tool); 142 if (err) 143 return err; 144 145 return 0; 146 147 out_delete: 148 perf_session__delete(session); 149 return err; 150 } 151 152 static int report_events(int argc, const char **argv, struct perf_mem *mem) 153 { 154 const char **rep_argv; 155 int ret, i = 0, j, rep_argc; 156 157 if (mem->dump_raw) 158 return report_raw_events(mem); 159 160 rep_argc = argc + 3; 161 rep_argv = calloc(rep_argc + 1, sizeof(char *)); 162 if (!rep_argv) 163 return -1; 164 165 rep_argv[i++] = strdup("report"); 166 rep_argv[i++] = strdup("--mem-mode"); 167 rep_argv[i++] = strdup("-n"); /* display number of samples */ 168 169 /* 170 * there is no weight (cost) associated with stores, so don't print 171 * the column 172 */ 173 if (strcmp(mem_operation, MEM_OPERATION_LOAD)) 174 rep_argv[i++] = strdup("--sort=mem,sym,dso,symbol_daddr," 175 "dso_daddr,tlb,locked"); 176 177 for (j = 1; j < argc; j++, i++) 178 rep_argv[i] = argv[j]; 179 180 ret = cmd_report(i, rep_argv, NULL); 181 free(rep_argv); 182 return ret; 183 } 184 185 int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused) 186 { 187 struct stat st; 188 struct perf_mem mem = { 189 .tool = { 190 .sample = process_sample_event, 191 .mmap = perf_event__process_mmap, 192 .mmap2 = perf_event__process_mmap2, 193 .comm = perf_event__process_comm, 194 .lost = perf_event__process_lost, 195 .fork = perf_event__process_fork, 196 .build_id = perf_event__process_build_id, 197 .ordered_events = true, 198 }, 199 .input_name = "perf.data", 200 }; 201 const struct option mem_options[] = { 202 OPT_STRING('t', "type", &mem_operation, 203 "type", "memory operations(load/store)"), 204 OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw, 205 "dump raw samples in ASCII"), 206 OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved, 207 "Only display entries resolved to a symbol"), 208 OPT_STRING('i', "input", &input_name, "file", 209 "input file name"), 210 OPT_STRING('C', "cpu", &mem.cpu_list, "cpu", 211 "list of cpus to profile"), 212 OPT_STRING('x', "field-separator", &symbol_conf.field_sep, 213 "separator", 214 "separator for columns, no spaces will be added" 215 " between columns '.' is reserved."), 216 OPT_END() 217 }; 218 const char *const mem_subcommands[] = { "record", "report", NULL }; 219 const char *mem_usage[] = { 220 NULL, 221 NULL 222 }; 223 224 225 argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands, 226 mem_usage, PARSE_OPT_STOP_AT_NON_OPTION); 227 228 if (!argc || !(strncmp(argv[0], "rec", 3) || mem_operation)) 229 usage_with_options(mem_usage, mem_options); 230 231 if (!mem.input_name || !strlen(mem.input_name)) { 232 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) 233 mem.input_name = "-"; 234 else 235 mem.input_name = "perf.data"; 236 } 237 238 if (!strncmp(argv[0], "rec", 3)) 239 return __cmd_record(argc, argv); 240 else if (!strncmp(argv[0], "rep", 3)) 241 return report_events(argc, argv, &mem); 242 else 243 usage_with_options(mem_usage, mem_options); 244 245 return 0; 246 } 247