mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-21 08:53:41 +00:00
1124ba73be
Porcelain can ignore it, humans can make more sense of it. Suggested-by: Frederic Weisbecker <fweisbec@gmail.com> Suggested-by: Ingo Molnar <mingo@elte.hu> Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <1258415125-15019-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
/*
|
|
* 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();
|
|
}
|