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