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