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30862f2c57
The perf configuration file contains many variables to change various
aspects of each of its tools, including output, disk usage, etc.
But looking at the state of configuration is difficult and there's no
documentation about config variables except for the variables in
perfconfig.example exist.
So this patch adds a 'perf-config' command with a '--list' option.
perf config [options]
display current perf config variables.
# perf config -l | --list
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1447768424-17327-1-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
/*
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* builtin-config.c
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*
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* Copyright (C) 2015, Taeung Song <treeze.taeung@gmail.com>
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*
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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/parse-options.h"
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#include "util/util.h"
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#include "util/debug.h"
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static const char * const config_usage[] = {
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"perf config [options]",
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NULL
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};
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enum actions {
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ACTION_LIST = 1
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} actions;
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static struct option config_options[] = {
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OPT_SET_UINT('l', "list", &actions,
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"show current config variables", ACTION_LIST),
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OPT_END()
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};
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static int show_config(const char *key, const char *value,
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void *cb __maybe_unused)
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{
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if (value)
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printf("%s=%s\n", key, value);
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else
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printf("%s\n", key);
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return 0;
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}
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int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
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{
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int ret = 0;
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argc = parse_options(argc, argv, config_options, config_usage,
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PARSE_OPT_STOP_AT_NON_OPTION);
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switch (actions) {
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case ACTION_LIST:
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if (argc) {
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pr_err("Error: takes no arguments\n");
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parse_options_usage(config_usage, config_options, "l", 1);
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} else {
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ret = perf_config(show_config, NULL);
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if (ret < 0)
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pr_err("Nothing configured, "
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"please check your ~/.perfconfig file\n");
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}
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break;
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default:
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usage_with_options(config_usage, config_options);
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}
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return ret;
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}
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