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Date: Mon, 9 Nov 2015 11:33:14 +0900 From: Taeung Song <treeze.taeung@...il.com> To: Arnaldo Carvalho de Melo <acme@...nel.org> Cc: linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>, Taeung Song <treeze.taeung@...il.com>, Namhyung Kim <namhyung@...nel.org>, Jiri Olsa <jolsa@...hat.com> Subject: [PATCH v10 21/22] perf config: normalize a value depending on default type of it Whether or not user mis-type wrong data type to set config, normalize the value. If a config user enter isn't contained in default configs, just pass as it is. For the examples, # perf config report.queue-size=1M # perf config report.queue-size report.queue-size=1048576 Cc: Namhyung Kim <namhyung@...nel.org> Cc: Jiri Olsa <jolsa@...hat.com> Signed-off-by: Taeung Song <treeze.taeung@...il.com> --- tools/perf/builtin-config.c | 54 ++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 49 insertions(+), 5 deletions(-) diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c index 89b12e9..388e95b 100644 --- a/tools/perf/builtin-config.c +++ b/tools/perf/builtin-config.c @@ -351,6 +351,54 @@ static int show_spec_config(struct list_head *sections, return -1; } +static char *normalize_value(const char *section_name, const char *name, const char *value) +{ + int i, ret = 0; + char *endptr; + char key[BUFSIZ]; + char *normalized; + + scnprintf(key, sizeof(key), "%s.%s", section_name, name); + for (i = 0; default_configs[i].type != CONFIG_END; i++) { + struct config_item *config = &default_configs[i]; + + if (!strcmp(config->section, section_name) && + !strcmp(config->name, name)) { + if (config->type == CONFIG_TYPE_BOOL) + ret = asprintf(&normalized, "%s", + perf_config_bool(key, value) ? "true" : "false"); + else if (config->type == CONFIG_TYPE_INT || + config->type == CONFIG_TYPE_LONG) + ret = asprintf(&normalized, "%d", + perf_config_int(key, value)); + else if (config->type == CONFIG_TYPE_U64) + ret = asprintf(&normalized, "%"PRId64, + perf_config_u64(key, value)); + else if (config->type == CONFIG_TYPE_FLOAT) + ret = asprintf(&normalized, "%f", + strtof(value, &endptr)); + else if (config->type == CONFIG_TYPE_DOUBLE) + ret = asprintf(&normalized, "%f", + strtod(value, &endptr)); + else + ret = asprintf(&normalized, "%s", value); + + if (ret < 0) + return NULL; + + return normalized; + } + } + + normalized = strdup(value); + if (!normalized) { + pr_err("%s: strdup failed\n", __func__); + return NULL; + } + + return normalized; +} + static int set_config(struct list_head *sections, const char *config_file_name, const char *section_name, const char *name, char *value) { @@ -359,11 +407,7 @@ static int set_config(struct list_head *sections, const char *config_file_name, find_config(sections, §ion, &element, section_name, name); if (value != NULL) { - value = strdup(value); - if (!value) { - pr_err("%s: strdup failed\n", __func__); - return -1; - } + value = normalize_value(section_name, name, value); /* if there isn't existent section, add a new section */ if (!section) { -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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