static int handle_options(const char ***argv, int *argc, int *envchanged) { int handled = 0; while (*argc > 0) { const char *cmd = (*argv)[0]; if (cmd[0] != '-') break; /* * For legacy reasons, the "version" and "help" * commands can be written with "--" prepended * to make them look like flags. */ if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version")) break; /* * Shortcut for '-h' and '-v' options to invoke help * and version command. */ if (!strcmp(cmd, "-h")) { (*argv)[0] = "--help"; break; } if (!strcmp(cmd, "-v")) { (*argv)[0] = "--version"; break; } if (!strcmp(cmd, "-vv")) { (*argv)[0] = "version"; version_verbose = 1; break; } /* * Check remaining flags. */ if (strstarts(cmd, CMD_EXEC_PATH)) { cmd += strlen(CMD_EXEC_PATH); if (*cmd == '=') set_argv_exec_path(cmd + 1); else { puts(get_argv_exec_path()); exit(0); } } else if (!strcmp(cmd, "--html-path")) { puts(system_path(PERF_HTML_PATH)); exit(0); } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { use_pager = 1; } else if (!strcmp(cmd, "--no-pager")) { use_pager = 0; if (envchanged) *envchanged = 1; } else if (!strcmp(cmd, "--debugfs-dir")) { if (*argc < 2) { fprintf(stderr, "No directory given for --debugfs-dir.\n"); usage(perf_usage_string); } tracing_path_set((*argv)[1]); if (envchanged) *envchanged = 1; (*argv)++; (*argc)--; } else if (!strcmp(cmd, "--buildid-dir")) { if (*argc < 2) { fprintf(stderr, "No directory given for --buildid-dir.\n"); usage(perf_usage_string); } set_buildid_dir((*argv)[1]); if (envchanged) *envchanged = 1; (*argv)++; (*argc)--; } else if (strstarts(cmd, CMD_DEBUGFS_DIR)) { tracing_path_set(cmd + strlen(CMD_DEBUGFS_DIR)); fprintf(stderr, "dir: %s\n", tracing_path); if (envchanged) *envchanged = 1; } else if (!strcmp(cmd, "--list-cmds")) { unsigned int i; for (i = 0; i < ARRAY_SIZE(commands); i++) { struct cmd_struct *p = commands+i; printf("%s ", p->cmd); } putchar('\n'); exit(0); } else if (!strcmp(cmd, "--list-opts")) { unsigned int i; for (i = 0; i < ARRAY_SIZE(options)-1; i++) { struct option *p = options+i; printf("--%s ", p->long_name); } putchar('\n'); exit(0); } else if (!strcmp(cmd, "--debug")) { if (*argc < 2) { fprintf(stderr, "No variable specified for --debug.\n"); usage(perf_usage_string); } if (perf_debug_option((*argv)[1])) usage(perf_usage_string); (*argv)++; (*argc)--; } else { fprintf(stderr, "Unknown option: %s\n", cmd); usage(perf_usage_string); } (*argv)++; (*argc)--; handled++; } return handled; }
static int handle_options(const char ***argv, int *argc, int *envchanged) { int handled = 0; while (*argc > 0) { const char *cmd = (*argv)[0]; if (cmd[0] != '-') break; /* * For legacy reasons, the "version" and "help" * commands can be written with "--" prepended * to make them look like flags. */ if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version")) break; /* * Check remaining flags. */ if (!prefixcmp(cmd, CMD_EXEC_PATH)) { cmd += strlen(CMD_EXEC_PATH); if (*cmd == '=') perf_set_argv_exec_path(cmd + 1); else { puts(perf_exec_path()); exit(0); } } else if (!strcmp(cmd, "--html-path")) { puts(system_path(PERF_HTML_PATH)); exit(0); } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { use_pager = 1; } else if (!strcmp(cmd, "--no-pager")) { use_pager = 0; if (envchanged) *envchanged = 1; } else if (!strcmp(cmd, "--perf-dir")) { if (*argc < 2) { fprintf(stderr, "No directory given for --perf-dir.\n"); usage(perf_usage_string); } setenv(PERF_DIR_ENVIRONMENT, (*argv)[1], 1); if (envchanged) *envchanged = 1; (*argv)++; (*argc)--; handled++; } else if (!prefixcmp(cmd, CMD_PERF_DIR)) { setenv(PERF_DIR_ENVIRONMENT, cmd + strlen(CMD_PERF_DIR), 1); if (envchanged) *envchanged = 1; } else if (!strcmp(cmd, "--work-tree")) { if (*argc < 2) { fprintf(stderr, "No directory given for --work-tree.\n"); usage(perf_usage_string); } setenv(PERF_WORK_TREE_ENVIRONMENT, (*argv)[1], 1); if (envchanged) *envchanged = 1; (*argv)++; (*argc)--; } else if (!prefixcmp(cmd, CMD_WORK_TREE)) { setenv(PERF_WORK_TREE_ENVIRONMENT, cmd + strlen(CMD_WORK_TREE), 1); if (envchanged) *envchanged = 1; } else if (!strcmp(cmd, "--debugfs-dir")) { if (*argc < 2) { fprintf(stderr, "No directory given for --debugfs-dir.\n"); usage(perf_usage_string); } perf_debugfs_set_path((*argv)[1]); if (envchanged) *envchanged = 1; (*argv)++; (*argc)--; } else if (!prefixcmp(cmd, CMD_DEBUGFS_DIR)) { perf_debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR)); fprintf(stderr, "dir: %s\n", debugfs_mountpoint); if (envchanged) *envchanged = 1; } else if (!strcmp(cmd, "--list-cmds")) { unsigned int i; for (i = 0; i < ARRAY_SIZE(commands); i++) { struct cmd_struct *p = commands+i; printf("%s ", p->cmd); } exit(0); } else if (!strcmp(cmd, "--debug")) { if (*argc < 2) { fprintf(stderr, "No variable specified for --debug.\n"); usage(perf_usage_string); } if (perf_debug_option((*argv)[1])) usage(perf_usage_string); (*argv)++; (*argc)--; } else { fprintf(stderr, "Unknown option: %s\n", cmd); usage(perf_usage_string); } (*argv)++; (*argc)--; handled++; } return handled; }