/* * builtin-buildid-list.c * * Builtin buildid-list command: list buildids in perf.data * * Copyright (C) 2009, Red Hat Inc. * Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com> */ #include "builtin.h" #include "perf.h" #include "util/cache.h" #include "util/data_map.h" #include "util/debug.h" #include "util/header.h" #include "util/parse-options.h" #include "util/symbol.h" static char const *input_name = "perf.data"; static int force; static const char *const buildid_list_usage[] = { "perf report [<options>]", NULL }; static const struct option options[] = { OPT_STRING('i', "input", &input_name, "file", "input file name"), OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), OPT_BOOLEAN('v', "verbose", &verbose, "be more verbose"), OPT_END() }; static int perf_file_section__process_buildids(struct perf_file_section *self, int feat, int fd) { if (feat != HEADER_BUILD_ID) return 0; if (lseek(fd, self->offset, SEEK_SET) < 0) { pr_warning("Failed to lseek to %Ld offset for buildids!\n", self->offset); return -1; } if (perf_header__read_build_ids(fd, self->offset, self->size)) { pr_warning("Failed to read buildids!\n"); return -1; } return 0; } static int __cmd_buildid_list(void) { int err = -1; struct perf_header *header; struct perf_file_header f_header; struct stat input_stat; int input = open(input_name, O_RDONLY); if (input < 0) { pr_err("failed to open file: %s", input_name); if (!strcmp(input_name, "perf.data")) pr_err(" (try 'perf record' first)"); pr_err("\n"); goto out; } err = fstat(input, &input_stat); if (err < 0) { perror("failed to stat file"); goto out_close; } if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { pr_err("file %s not owned by current user or root\n", input_name); goto out_close; } if (!input_stat.st_size) { pr_info("zero-sized file, nothing to do!\n"); goto out_close; } err = -1; header = perf_header__new(); if (header == NULL) goto out_close; if (perf_file_header__read(&f_header, header, input) < 0) { pr_warning("incompatible file format"); goto out_close; } err = perf_header__process_sections(header, input, perf_file_section__process_buildids); if (err < 0) goto out_close; dsos__fprintf_buildid(stdout); out_close: close(input); out: return err; } int cmd_buildid_list(int argc, const char **argv, const char *prefix __used) { argc = parse_options(argc, argv, options, buildid_list_usage, 0); setup_pager(); return __cmd_buildid_list(); }