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15bcdc9477
Conflicts: tools/perf/arch/arm/annotate/instructions.c tools/perf/arch/arm64/annotate/instructions.c tools/perf/arch/powerpc/annotate/instructions.c tools/perf/arch/s390/annotate/instructions.c tools/perf/arch/x86/tests/intel-cqm.c tools/perf/ui/tui/progress.c tools/perf/util/zlib.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
261 lines
5.7 KiB
C
261 lines
5.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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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 <subcmd/parse-options.h>
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#include "util/util.h"
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#include "util/debug.h"
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#include "util/config.h"
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#include <linux/string.h>
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static bool use_system_config, use_user_config;
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static const char * const config_usage[] = {
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"perf config [<file-option>] [options] [section.name[=value] ...]",
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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_BOOLEAN(0, "system", &use_system_config, "use system config file"),
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OPT_BOOLEAN(0, "user", &use_user_config, "use user config file"),
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OPT_END()
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};
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static int set_config(struct perf_config_set *set, const char *file_name)
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{
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struct perf_config_section *section = NULL;
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struct perf_config_item *item = NULL;
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const char *first_line = "# this file is auto-generated.";
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FILE *fp;
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if (set == NULL)
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return -1;
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fp = fopen(file_name, "w");
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if (!fp)
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return -1;
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fprintf(fp, "%s\n", first_line);
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/* overwrite configvariables */
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perf_config_items__for_each_entry(&set->sections, section) {
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if (!use_system_config && section->from_system_config)
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continue;
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fprintf(fp, "[%s]\n", section->name);
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perf_config_items__for_each_entry(§ion->items, item) {
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if (!use_system_config && item->from_system_config)
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continue;
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if (item->value)
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fprintf(fp, "\t%s = %s\n",
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item->name, item->value);
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}
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}
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fclose(fp);
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return 0;
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}
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static int show_spec_config(struct perf_config_set *set, const char *var)
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{
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struct perf_config_section *section;
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struct perf_config_item *item;
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if (set == NULL)
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return -1;
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perf_config_items__for_each_entry(&set->sections, section) {
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if (!strstarts(var, section->name))
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continue;
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perf_config_items__for_each_entry(§ion->items, item) {
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const char *name = var + strlen(section->name) + 1;
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if (strcmp(name, item->name) == 0) {
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char *value = item->value;
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if (value) {
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printf("%s=%s\n", var, value);
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return 0;
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}
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}
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}
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}
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return 0;
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}
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static int show_config(struct perf_config_set *set)
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{
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struct perf_config_section *section;
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struct perf_config_item *item;
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if (set == NULL)
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return -1;
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perf_config_set__for_each_entry(set, section, item) {
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char *value = item->value;
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if (value)
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printf("%s.%s=%s\n", section->name,
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item->name, value);
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}
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return 0;
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}
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static int parse_config_arg(char *arg, char **var, char **value)
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{
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const char *last_dot = strchr(arg, '.');
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/*
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* Since "var" actually contains the section name and the real
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* config variable name separated by a dot, we have to know where the dot is.
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*/
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if (last_dot == NULL || last_dot == arg) {
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pr_err("The config variable does not contain a section name: %s\n", arg);
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return -1;
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}
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if (!last_dot[1]) {
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pr_err("The config variable does not contain a variable name: %s\n", arg);
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return -1;
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}
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*value = strchr(arg, '=');
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if (*value == NULL)
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*var = arg;
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else if (!strcmp(*value, "=")) {
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pr_err("The config variable does not contain a value: %s\n", arg);
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return -1;
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} else {
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*value = *value + 1; /* excluding a first character '=' */
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*var = strsep(&arg, "=");
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if (*var[0] == '\0') {
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pr_err("invalid config variable: %s\n", arg);
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return -1;
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}
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}
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return 0;
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}
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int cmd_config(int argc, const char **argv)
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{
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int i, ret = -1;
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struct perf_config_set *set;
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char *user_config = mkpath("%s/.perfconfig", getenv("HOME"));
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const char *config_filename;
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bool changed = false;
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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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if (use_system_config && use_user_config) {
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pr_err("Error: only one config file at a time\n");
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parse_options_usage(config_usage, config_options, "user", 0);
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parse_options_usage(NULL, config_options, "system", 0);
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return -1;
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}
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if (use_system_config)
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config_exclusive_filename = perf_etc_perfconfig();
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else if (use_user_config)
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config_exclusive_filename = user_config;
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if (!config_exclusive_filename)
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config_filename = user_config;
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else
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config_filename = config_exclusive_filename;
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/*
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* At only 'config' sub-command, individually use the config set
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* because of reinitializing with options config file location.
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*/
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set = perf_config_set__new();
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if (!set)
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goto out_err;
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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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if (show_config(set) < 0) {
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pr_err("Nothing configured, "
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"please check your %s \n", config_filename);
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goto out_err;
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}
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}
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break;
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default:
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if (!argc) {
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usage_with_options(config_usage, config_options);
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break;
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}
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for (i = 0; argv[i]; i++) {
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char *var, *value;
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char *arg = strdup(argv[i]);
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if (!arg) {
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pr_err("%s: strdup failed\n", __func__);
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goto out_err;
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}
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if (parse_config_arg(arg, &var, &value) < 0) {
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free(arg);
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goto out_err;
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}
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if (value == NULL) {
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if (show_spec_config(set, var) < 0) {
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pr_err("%s is not configured: %s\n",
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var, config_filename);
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free(arg);
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goto out_err;
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}
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} else {
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if (perf_config_set__collect(set, config_filename,
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var, value) < 0) {
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pr_err("Failed to add '%s=%s'\n",
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var, value);
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free(arg);
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goto out_err;
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}
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changed = true;
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}
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free(arg);
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}
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if (!changed)
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break;
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if (set_config(set, config_filename) < 0) {
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pr_err("Failed to set the configs on %s\n",
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config_filename);
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goto out_err;
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}
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}
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ret = 0;
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out_err:
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perf_config_set__delete(set);
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return ret;
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}
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