mirror of
https://github.com/torvalds/linux.git
synced 2024-11-07 12:41:55 +00:00
bd05954bfa
Enable perf data convert to use perf.data when it is not owned by
current user or root.
Example:
# perf record ls
# chown Yunlong.Song:Yunlong.Song perf.data
# ls -al perf.data
-rw------- 1 Yunlong.Song Yunlong.Song 28260 Apr 2 17:35 perf.data
# id
uid=0(root) gid=0(root) groups=0(root),64(pkcs11)
Before this patch:
# perf data convert --to-ctf=./ctf-data/
File perf.data not owned by current user or root (use -f to override)
# perf data convert --to-ctf=./ctf-data/ -f
Error: unknown switch `f'
usage: perf data convert [<options>]
-v, --verbose be more verbose
-i, --input <file> input file name
--to-ctf ... Convert to CTF format
After this patch:
# perf data convert --to-ctf=./ctf-data/
File perf.data not owned by current user or root (use -f to override)
# perf data convert --to-ctf=./ctf-data/ -f
# ls ctf-data/
metadata perf_stream_0
As shown above, the -f option really works now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1427982439-27388-11-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
124 lines
2.6 KiB
C
124 lines
2.6 KiB
C
#include <linux/compiler.h>
|
|
#include "builtin.h"
|
|
#include "perf.h"
|
|
#include "debug.h"
|
|
#include "parse-options.h"
|
|
#include "data-convert-bt.h"
|
|
|
|
typedef int (*data_cmd_fn_t)(int argc, const char **argv, const char *prefix);
|
|
|
|
struct data_cmd {
|
|
const char *name;
|
|
const char *summary;
|
|
data_cmd_fn_t fn;
|
|
};
|
|
|
|
static struct data_cmd data_cmds[];
|
|
|
|
#define for_each_cmd(cmd) \
|
|
for (cmd = data_cmds; cmd && cmd->name; cmd++)
|
|
|
|
static const struct option data_options[] = {
|
|
OPT_END()
|
|
};
|
|
|
|
static const char * const data_subcommands[] = { "convert", NULL };
|
|
|
|
static const char *data_usage[] = {
|
|
"perf data [<common options>] <command> [<options>]",
|
|
NULL
|
|
};
|
|
|
|
static void print_usage(void)
|
|
{
|
|
struct data_cmd *cmd;
|
|
|
|
printf("Usage:\n");
|
|
printf("\t%s\n\n", data_usage[0]);
|
|
printf("\tAvailable commands:\n");
|
|
|
|
for_each_cmd(cmd) {
|
|
printf("\t %s\t- %s\n", cmd->name, cmd->summary);
|
|
}
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
static const char * const data_convert_usage[] = {
|
|
"perf data convert [<options>]",
|
|
NULL
|
|
};
|
|
|
|
static int cmd_data_convert(int argc, const char **argv,
|
|
const char *prefix __maybe_unused)
|
|
{
|
|
const char *to_ctf = NULL;
|
|
bool force = false;
|
|
const struct option options[] = {
|
|
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
|
|
OPT_STRING('i', "input", &input_name, "file", "input file name"),
|
|
#ifdef HAVE_LIBBABELTRACE_SUPPORT
|
|
OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
|
|
#endif
|
|
OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
|
|
OPT_END()
|
|
};
|
|
|
|
#ifndef HAVE_LIBBABELTRACE_SUPPORT
|
|
pr_err("No conversion support compiled in.\n");
|
|
return -1;
|
|
#endif
|
|
|
|
argc = parse_options(argc, argv, options,
|
|
data_convert_usage, 0);
|
|
if (argc) {
|
|
usage_with_options(data_convert_usage, options);
|
|
return -1;
|
|
}
|
|
|
|
if (to_ctf) {
|
|
#ifdef HAVE_LIBBABELTRACE_SUPPORT
|
|
return bt_convert__perf2ctf(input_name, to_ctf, force);
|
|
#else
|
|
pr_err("The libbabeltrace support is not compiled in.\n");
|
|
return -1;
|
|
#endif
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct data_cmd data_cmds[] = {
|
|
{ "convert", "converts data file between formats", cmd_data_convert },
|
|
{ .name = NULL, },
|
|
};
|
|
|
|
int cmd_data(int argc, const char **argv, const char *prefix)
|
|
{
|
|
struct data_cmd *cmd;
|
|
const char *cmdstr;
|
|
|
|
/* No command specified. */
|
|
if (argc < 2)
|
|
goto usage;
|
|
|
|
argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
|
|
PARSE_OPT_STOP_AT_NON_OPTION);
|
|
if (argc < 1)
|
|
goto usage;
|
|
|
|
cmdstr = argv[0];
|
|
|
|
for_each_cmd(cmd) {
|
|
if (strcmp(cmd->name, cmdstr))
|
|
continue;
|
|
|
|
return cmd->fn(argc, argv, prefix);
|
|
}
|
|
|
|
pr_err("Unknown command: %s\n", cmdstr);
|
|
usage:
|
|
print_usage();
|
|
return -1;
|
|
}
|