linux/tools/perf/builtin-config.c

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/*
* builtin-config.c
*
* Copyright (C) 2015, Taeung Song <treeze.taeung@gmail.com>
*
*/
#include "builtin.h"
#include "perf.h"
#include "util/cache.h"
#include <subcmd/parse-options.h>
#include "util/util.h"
#include "util/debug.h"
static const char * const config_usage[] = {
"perf config [options]",
NULL
};
enum actions {
ACTION_LIST = 1
} actions;
static struct option config_options[] = {
OPT_SET_UINT('l', "list", &actions,
"show current config variables", ACTION_LIST),
OPT_END()
};
static int show_config(const char *key, const char *value,
void *cb __maybe_unused)
{
if (value)
printf("%s=%s\n", key, value);
else
printf("%s\n", key);
return 0;
}
int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
{
int ret = 0;
argc = parse_options(argc, argv, config_options, config_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
switch (actions) {
case ACTION_LIST:
if (argc) {
pr_err("Error: takes no arguments\n");
parse_options_usage(config_usage, config_options, "l", 1);
} else {
ret = perf_config(show_config, NULL);
if (ret < 0)
pr_err("Nothing configured, "
"please check your ~/.perfconfig file\n");
}
break;
default:
usage_with_options(config_usage, config_options);
}
return ret;
}