1e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng/* 2e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * perf.c 3e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * 4e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * Performance analysis utility. 5e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * 6e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * This is the main hub from which the sub-commands (perf stat, 7e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * perf top, perf record, perf report, etc.) are started. 8e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 9e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "builtin.h" 10e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 11e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/exec_cmd.h" 12e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/cache.h" 13e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/quote.h" 14e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/run-command.h" 15e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/parse-events.h" 16e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <lk/debugfs.h> 17e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <pthread.h> 18e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 19e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengconst char perf_usage_string[] = 20e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "perf [--version] [--help] COMMAND [ARGS]"; 21e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 22e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengconst char perf_more_info_string[] = 23e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "See 'perf help COMMAND' for more information on a specific command."; 24e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 25e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint use_browser = -1; 26e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int use_pager = -1; 27e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengconst char *input_name; 28e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 29e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct cmd_struct { 30e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *cmd; 31e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int (*fn)(int, const char **, const char *); 32e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int option; 33e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 34e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 35e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct cmd_struct commands[] = { 36e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "buildid-cache", cmd_buildid_cache, 0 }, 37e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "buildid-list", cmd_buildid_list, 0 }, 38e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "diff", cmd_diff, 0 }, 39e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "evlist", cmd_evlist, 0 }, 40e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "help", cmd_help, 0 }, 41e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "list", cmd_list, 0 }, 42e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "record", cmd_record, 0 }, 43e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "report", cmd_report, 0 }, 44e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "bench", cmd_bench, 0 }, 45e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "stat", cmd_stat, 0 }, 46e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "timechart", cmd_timechart, 0 }, 47e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "top", cmd_top, 0 }, 48e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "annotate", cmd_annotate, 0 }, 49e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "version", cmd_version, 0 }, 50e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "script", cmd_script, 0 }, 51e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "sched", cmd_sched, 0 }, 52e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#ifdef LIBELF_SUPPORT 53e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "probe", cmd_probe, 0 }, 54e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#endif 55e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "kmem", cmd_kmem, 0 }, 56e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "lock", cmd_lock, 0 }, 57e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "kvm", cmd_kvm, 0 }, 58e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "test", cmd_test, 0 }, 59e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#ifdef LIBAUDIT_SUPPORT 60e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "trace", cmd_trace, 0 }, 61e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#endif 62e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "inject", cmd_inject, 0 }, 63e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { "mem", cmd_mem, 0 }, 64e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 65e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 66e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct pager_config { 67e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *cmd; 68e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int val; 69e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 70e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 71e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int pager_command_config(const char *var, const char *value, void *data) 72e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 73e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct pager_config *c = data; 74e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!prefixcmp(var, "pager.") && !strcmp(var + 6, c->cmd)) 75e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng c->val = perf_config_bool(var, value); 76e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 77e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 78e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 79e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng/* returns 0 for "no pager", 1 for "use pager", and -1 for "not specified" */ 80e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint check_pager_config(const char *cmd) 81e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 82e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct pager_config c; 83e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng c.cmd = cmd; 84e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng c.val = -1; 85e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_config(pager_command_config, &c); 86e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return c.val; 87e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 88e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 89e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int browser_command_config(const char *var, const char *value, void *data) 90e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 91e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct pager_config *c = data; 92e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!prefixcmp(var, "tui.") && !strcmp(var + 4, c->cmd)) 93e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng c->val = perf_config_bool(var, value); 94e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!prefixcmp(var, "gtk.") && !strcmp(var + 4, c->cmd)) 95e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng c->val = perf_config_bool(var, value) ? 2 : 0; 96e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 97e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 98e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 99e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng/* 100e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * returns 0 for "no tui", 1 for "use tui", 2 for "use gtk", 101e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * and -1 for "not specified" 102e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 103e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int check_browser_config(const char *cmd) 104e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 105e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct pager_config c; 106e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng c.cmd = cmd; 107e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng c.val = -1; 108e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_config(browser_command_config, &c); 109e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return c.val; 110e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 111e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 112e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void commit_pager_choice(void) 113e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 114e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng switch (use_pager) { 115e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng case 0: 116e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng setenv("PERF_PAGER", "cat", 1); 117e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 118e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng case 1: 119e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* setup_pager(); */ 120e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 121e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng default: 122e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 123e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 124e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 125e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 126e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int handle_options(const char ***argv, int *argc, int *envchanged) 127e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 128e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int handled = 0; 129e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 130e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (*argc > 0) { 131e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *cmd = (*argv)[0]; 132e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (cmd[0] != '-') 133e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 134e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 135e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 136e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * For legacy reasons, the "version" and "help" 137e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * commands can be written with "--" prepended 138e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * to make them look like flags. 139e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 140e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version")) 141e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 142e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 143e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 144e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * Check remaining flags. 145e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 146e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!prefixcmp(cmd, CMD_EXEC_PATH)) { 147e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cmd += strlen(CMD_EXEC_PATH); 148e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (*cmd == '=') 149e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_set_argv_exec_path(cmd + 1); 150e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else { 151e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng puts(perf_exec_path()); 152e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng exit(0); 153e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 154e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!strcmp(cmd, "--html-path")) { 155e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng puts(system_path(PERF_HTML_PATH)); 156e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng exit(0); 157e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { 158e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng use_pager = 1; 159e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!strcmp(cmd, "--no-pager")) { 160e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng use_pager = 0; 161e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (envchanged) 162e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *envchanged = 1; 163e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!strcmp(cmd, "--perf-dir")) { 164e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (*argc < 2) { 165e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "No directory given for --perf-dir.\n"); 166e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng usage(perf_usage_string); 167e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 168e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng setenv(PERF_DIR_ENVIRONMENT, (*argv)[1], 1); 169e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (envchanged) 170e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *envchanged = 1; 171e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (*argv)++; 172e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (*argc)--; 173e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng handled++; 174e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!prefixcmp(cmd, CMD_PERF_DIR)) { 175e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng setenv(PERF_DIR_ENVIRONMENT, cmd + strlen(CMD_PERF_DIR), 1); 176e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (envchanged) 177e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *envchanged = 1; 178e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!strcmp(cmd, "--work-tree")) { 179e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (*argc < 2) { 180e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "No directory given for --work-tree.\n"); 181e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng usage(perf_usage_string); 182e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 183e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng setenv(PERF_WORK_TREE_ENVIRONMENT, (*argv)[1], 1); 184e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (envchanged) 185e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *envchanged = 1; 186e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (*argv)++; 187e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (*argc)--; 188e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!prefixcmp(cmd, CMD_WORK_TREE)) { 189e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng setenv(PERF_WORK_TREE_ENVIRONMENT, cmd + strlen(CMD_WORK_TREE), 1); 190e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (envchanged) 191e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *envchanged = 1; 192e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!strcmp(cmd, "--debugfs-dir")) { 193e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (*argc < 2) { 194e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "No directory given for --debugfs-dir.\n"); 195e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng usage(perf_usage_string); 196e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 197e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_debugfs_set_path((*argv)[1]); 198e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (envchanged) 199e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *envchanged = 1; 200e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (*argv)++; 201e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (*argc)--; 202e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!prefixcmp(cmd, CMD_DEBUGFS_DIR)) { 203e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR)); 204e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "dir: %s\n", debugfs_mountpoint); 205e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (envchanged) 206e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *envchanged = 1; 207e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else if (!strcmp(cmd, "--list-cmds")) { 208e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng unsigned int i; 209e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 210e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (i = 0; i < ARRAY_SIZE(commands); i++) { 211e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct cmd_struct *p = commands+i; 212e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("%s ", p->cmd); 213e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 214e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng exit(0); 215e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else { 216e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "Unknown option: %s\n", cmd); 217e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng usage(perf_usage_string); 218e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 219e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 220e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (*argv)++; 221e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (*argc)--; 222e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng handled++; 223e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 224e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return handled; 225e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 226e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 227e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int handle_alias(int *argcp, const char ***argv) 228e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 229e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int envchanged = 0, ret = 0, saved_errno = errno; 230e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int count, option_count; 231e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char **new_argv; 232e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *alias_command; 233e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char *alias_string; 234e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 235e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng alias_command = (*argv)[0]; 236e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng alias_string = alias_lookup(alias_command); 237e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (alias_string) { 238e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (alias_string[0] == '!') { 239e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (*argcp > 1) { 240e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct strbuf buf; 241e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 242e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng strbuf_init(&buf, PATH_MAX); 243e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng strbuf_addstr(&buf, alias_string); 244e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sq_quote_argv(&buf, (*argv) + 1, PATH_MAX); 245e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(alias_string); 246e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng alias_string = buf.buf; 247e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 248e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret = system(alias_string + 1); 249e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (ret >= 0 && WIFEXITED(ret) && 250e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng WEXITSTATUS(ret) != 127) 251e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng exit(WEXITSTATUS(ret)); 252e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng die("Failed to run '%s' when expanding alias '%s'", 253e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng alias_string + 1, alias_command); 254e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 255e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng count = split_cmdline(alias_string, &new_argv); 256e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (count < 0) 257e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng die("Bad alias.%s string", alias_command); 258e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng option_count = handle_options(&new_argv, &count, &envchanged); 259e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (envchanged) 260e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng die("alias '%s' changes environment variables\n" 261e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "You can use '!perf' in the alias to do this.", 262e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng alias_command); 263e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memmove(new_argv - option_count, new_argv, 264e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng count * sizeof(char *)); 265e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng new_argv -= option_count; 266e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 267e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (count < 1) 268e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng die("empty alias for %s", alias_command); 269e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 270e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strcmp(alias_command, new_argv[0])) 271e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng die("recursive alias: %s", alias_command); 272e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 273e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng new_argv = realloc(new_argv, sizeof(char *) * 274e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (count + *argcp + 1)); 275e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* insert after command name */ 276e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memcpy(new_argv + count, *argv + 1, sizeof(char *) * *argcp); 277e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng new_argv[count + *argcp] = NULL; 278e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 279e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *argv = new_argv; 280e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *argcp += count - 1; 281e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 282e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret = 1; 283e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 284e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 285e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng errno = saved_errno; 286e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 287e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return ret; 288e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 289e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 290e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengconst char perf_version_string[] = PERF_VERSION; 291e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 292e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define RUN_SETUP (1<<0) 293e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define USE_PAGER (1<<1) 294e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng/* 295e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * require working tree to be present -- anything uses this needs 296e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * RUN_SETUP for reading from the configuration file. 297e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 298e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define NEED_WORK_TREE (1<<2) 299e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 300e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int run_builtin(struct cmd_struct *p, int argc, const char **argv) 301e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 302e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int status; 303e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct stat st; 304e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *prefix; 305e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 306e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng prefix = NULL; 307e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (p->option & RUN_SETUP) 308e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng prefix = NULL; /* setup_perf_directory(); */ 309e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 310e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (use_browser == -1) 311e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng use_browser = check_browser_config(p->cmd); 312e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 313e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (use_pager == -1 && p->option & RUN_SETUP) 314e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng use_pager = check_pager_config(p->cmd); 315e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (use_pager == -1 && p->option & USE_PAGER) 316e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng use_pager = 1; 317e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng commit_pager_choice(); 318e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 319e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng status = p->fn(argc, argv, prefix); 320e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng exit_browser(status); 321e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 322e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (status) 323e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return status & 0xff; 324e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 325e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* Somebody closed stdout? */ 326e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (fstat(fileno(stdout), &st)) 327e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 328e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* Ignore write errors for pipes and sockets.. */ 329e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) 330e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 331e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 332e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng status = 1; 333e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* Check for ENOSPC and EIO errors.. */ 334e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (fflush(stdout)) { 335e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "write failure on standard output: %s", strerror(errno)); 336e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 337e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 338e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (ferror(stdout)) { 339e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "unknown write failure on standard output"); 340e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 341e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 342e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (fclose(stdout)) { 343e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "close failed on standard output: %s", strerror(errno)); 344e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 345e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 346e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng status = 0; 347e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 348e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return status; 349e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 350e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 351e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void handle_internal_command(int argc, const char **argv) 352e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 353e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *cmd = argv[0]; 354e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng unsigned int i; 355e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng static const char ext[] = STRIP_EXTENSION; 356e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 357e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (sizeof(ext) > 1) { 358e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng i = strlen(argv[0]) - strlen(ext); 359e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (i > 0 && !strcmp(argv[0] + i, ext)) { 360e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char *argv0 = strdup(argv[0]); 361e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argv[0] = cmd = argv0; 362e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argv0[i] = '\0'; 363e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 364e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 365e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 366e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* Turn "perf cmd --help" into "perf help cmd" */ 367e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (argc > 1 && !strcmp(argv[1], "--help")) { 368e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argv[1] = argv[0]; 369e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argv[0] = cmd = "help"; 370e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 371e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 372e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (i = 0; i < ARRAY_SIZE(commands); i++) { 373e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct cmd_struct *p = commands+i; 374e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (strcmp(p->cmd, cmd)) 375e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng continue; 376e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng exit(run_builtin(p, argc, argv)); 377e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 378e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 379e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 380e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void execv_dashed_external(const char **argv) 381e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 382e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct strbuf cmd = STRBUF_INIT; 383e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *tmp; 384e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int status; 385e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 386e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng strbuf_addf(&cmd, "perf-%s", argv[0]); 387e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 388e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 389e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * argv[0] must be the perf command, but the argv array 390e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * belongs to the caller, and may be reused in 391e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * subsequent loop iterations. Save argv[0] and 392e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * restore it on error. 393e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 394e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tmp = argv[0]; 395e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argv[0] = cmd.buf; 396e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 397e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 398e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * if we fail because the command is not found, it is 399e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * OK to return. Otherwise, we just pass along the status code. 400e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 401e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng status = run_command_v_opt(argv, 0); 402e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (status != -ERR_RUN_COMMAND_EXEC) { 403e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (IS_RUN_COMMAND_ERR(status)) 404e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng die("unable to run '%s'", argv[0]); 405e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng exit(-status); 406e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 407e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng errno = ENOENT; /* as if we called execvp */ 408e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 409e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argv[0] = tmp; 410e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 411e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng strbuf_release(&cmd); 412e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 413e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 414e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int run_argv(int *argcp, const char ***argv) 415e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 416e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int done_alias = 0; 417e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 418e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (1) { 419e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* See if it's an internal command */ 420e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng handle_internal_command(*argcp, *argv); 421e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 422e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* .. then try the external ones */ 423e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng execv_dashed_external(*argv); 424e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 425e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* It could be an alias -- this works around the insanity 426e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * of overriding "perf log" with "perf show" by having 427e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * alias.log = show 428e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 429e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (done_alias || !handle_alias(argcp, argv)) 430e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 431e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng done_alias = 1; 432e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 433e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 434e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return done_alias; 435e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 436e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 437e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void pthread__block_sigwinch(void) 438e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 439e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sigset_t set; 440e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 441e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sigemptyset(&set); 442e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sigaddset(&set, SIGWINCH); 443e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pthread_sigmask(SIG_BLOCK, &set, NULL); 444e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 445e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 446e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengvoid pthread__unblock_sigwinch(void) 447e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 448e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sigset_t set; 449e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 450e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sigemptyset(&set); 451e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sigaddset(&set, SIGWINCH); 452e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pthread_sigmask(SIG_UNBLOCK, &set, NULL); 453e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 454e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 455e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint main(int argc, const char **argv) 456e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 457e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *cmd; 458e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 459e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng page_size = sysconf(_SC_PAGE_SIZE); 460e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 461e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cmd = perf_extract_argv0_path(argv[0]); 462e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!cmd) 463e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cmd = "perf-help"; 464e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* get debugfs mount point from /proc/mounts */ 465e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_debugfs_mount(NULL); 466e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 467e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * "perf-xxxx" is the same as "perf xxxx", but we obviously: 468e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * 469e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * - cannot take flags in between the "perf" and the "xxxx". 470e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * - cannot execute it externally (since it would just do 471e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * the same thing over again) 472e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * 473e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * So we just directly call the internal command handler, and 474e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * die if that one cannot handle it. 475e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 476e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!prefixcmp(cmd, "perf-")) { 477e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cmd += 5; 478e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argv[0] = cmd; 479e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng handle_internal_command(argc, argv); 480e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "cannot handle %s internally", cmd); 481e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 482e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 483e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 484e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* Look for flags.. */ 485e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argv++; 486e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argc--; 487e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng handle_options(&argv, &argc, NULL); 488e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng commit_pager_choice(); 489e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng set_buildid_dir(); 490e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 491e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (argc > 0) { 492e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!prefixcmp(argv[0], "--")) 493e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argv[0] += 2; 494e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else { 495e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* The user didn't specify a command; give them help */ 496e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("\n usage: %s\n\n", perf_usage_string); 497e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng list_common_cmds_help(); 498e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("\n %s\n\n", perf_more_info_string); 499e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 500e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 501e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cmd = argv[0]; 502e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 503e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng test_attr__init(); 504e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 505e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 506e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * We use PATH to find perf commands, but we prepend some higher 507e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * precedence paths: the "--exec-path" option, the PERF_EXEC_PATH 508e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * environment, and the $(perfexecdir) from the Makefile at build 509e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * time. 510e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 511e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng setup_path(); 512e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 513e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * Block SIGWINCH notifications so that the thread that wants it can 514e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * unblock and get syscalls like select interrupted instead of waiting 515e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * forever while the signal goes to some other non interested thread. 516e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 517e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pthread__block_sigwinch(); 518e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 519e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (1) { 520e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng static int done_help; 521e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int was_alias = run_argv(&argc, &argv); 522e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 523e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (errno != ENOENT) 524e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 525e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 526e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (was_alias) { 527e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "Expansion of alias '%s' failed; " 528e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "'%s' is not a perf-command\n", 529e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cmd, argv[0]); 530e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 531e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 532e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!done_help) { 533e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cmd = argv[0] = help_unknown_cmd(cmd); 534e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng done_help = 1; 535e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else 536e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 537e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 538e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 539e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng fprintf(stderr, "Failed to run command '%s': %s\n", 540e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cmd, strerror(errno)); 541e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 542e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 1; 543e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 544