mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 19:15:25 +07:00
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>
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#include "builtin.h"
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#include "perf.h"
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#include "debug.h"
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#include "parse-options.h"
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#include "data-convert-bt.h"
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typedef int (*data_cmd_fn_t)(int argc, const char **argv, const char *prefix);
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struct data_cmd {
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const char *name;
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const char *summary;
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data_cmd_fn_t fn;
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};
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static struct data_cmd data_cmds[];
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#define for_each_cmd(cmd) \
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for (cmd = data_cmds; cmd && cmd->name; cmd++)
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static const struct option data_options[] = {
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OPT_END()
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};
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static const char * const data_subcommands[] = { "convert", NULL };
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static const char *data_usage[] = {
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"perf data [<common options>] <command> [<options>]",
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NULL
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};
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static void print_usage(void)
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{
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struct data_cmd *cmd;
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printf("Usage:\n");
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printf("\t%s\n\n", data_usage[0]);
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printf("\tAvailable commands:\n");
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for_each_cmd(cmd) {
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printf("\t %s\t- %s\n", cmd->name, cmd->summary);
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}
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printf("\n");
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}
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static const char * const data_convert_usage[] = {
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"perf data convert [<options>]",
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NULL
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};
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static int cmd_data_convert(int argc, const char **argv,
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const char *prefix __maybe_unused)
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{
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const char *to_ctf = NULL;
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bool force = false;
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const struct option options[] = {
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OPT_INCR('v', "verbose", &verbose, "be more verbose"),
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OPT_STRING('i', "input", &input_name, "file", "input file name"),
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#ifdef HAVE_LIBBABELTRACE_SUPPORT
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OPT_STRING(0, "to-ctf", &to_ctf, NULL, "Convert to CTF format"),
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#endif
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OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
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OPT_END()
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};
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#ifndef HAVE_LIBBABELTRACE_SUPPORT
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pr_err("No conversion support compiled in.\n");
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return -1;
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#endif
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argc = parse_options(argc, argv, options,
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data_convert_usage, 0);
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if (argc) {
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usage_with_options(data_convert_usage, options);
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return -1;
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}
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if (to_ctf) {
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#ifdef HAVE_LIBBABELTRACE_SUPPORT
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return bt_convert__perf2ctf(input_name, to_ctf, force);
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#else
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pr_err("The libbabeltrace support is not compiled in.\n");
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return -1;
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#endif
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}
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return 0;
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}
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static struct data_cmd data_cmds[] = {
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{ "convert", "converts data file between formats", cmd_data_convert },
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{ .name = NULL, },
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};
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int cmd_data(int argc, const char **argv, const char *prefix)
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{
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struct data_cmd *cmd;
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const char *cmdstr;
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/* No command specified. */
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if (argc < 2)
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goto usage;
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argc = parse_options_subcommand(argc, argv, data_options, data_subcommands, data_usage,
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PARSE_OPT_STOP_AT_NON_OPTION);
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if (argc < 1)
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goto usage;
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cmdstr = argv[0];
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for_each_cmd(cmd) {
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if (strcmp(cmd->name, cmdstr))
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continue;
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return cmd->fn(argc, argv, prefix);
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}
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pr_err("Unknown command: %s\n", cmdstr);
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usage:
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print_usage();
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return -1;
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}
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