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author | Taeung Song <treeze.taeung@gmail.com> | 2016-11-04 15:44:17 +0900 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-11-14 12:52:17 -0300 |
commit | 909236083ee58399b371d085fef5cfac9bce3ec8 (patch) | |
tree | b996bab823eca9beeaf66fcf22231df017db0511 /tools/perf/builtin-config.c | |
parent | 8c9c3d2f950cca57f5fa9330c4d15d8f0dfda092 (diff) | |
download | op-kernel-dev-909236083ee58399b371d085fef5cfac9bce3ec8.zip op-kernel-dev-909236083ee58399b371d085fef5cfac9bce3ec8.tar.gz |
perf config: Add support for getting config key-value pairs
Add a functionality getting specific config key-value pairs.
For the syntax examples,
perf config [<file-option>] [section.name ...]
e.g. To query config items 'report.queue-size' and 'report.children', do
# perf config report.queue-size report.children
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Nambong Ha <over3025@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Wookje Kwon <aweee0@gmail.com>
Link: http://lkml.kernel.org/r/1478241862-31230-2-git-send-email-treeze.taeung@gmail.com
[ Combined patch with docs update with this one ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-config.c')
-rw-r--r-- | tools/perf/builtin-config.c | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c index e4207a2..df3fa1c 100644 --- a/tools/perf/builtin-config.c +++ b/tools/perf/builtin-config.c @@ -17,7 +17,7 @@ static bool use_system_config, use_user_config; static const char * const config_usage[] = { - "perf config [<file-option>] [options]", + "perf config [<file-option>] [options] [section.name ...]", NULL }; @@ -33,6 +33,36 @@ static struct option config_options[] = { OPT_END() }; +static int show_spec_config(struct perf_config_set *set, const char *var) +{ + struct perf_config_section *section; + struct perf_config_item *item; + + if (set == NULL) + return -1; + + perf_config_items__for_each_entry(&set->sections, section) { + if (prefixcmp(var, section->name) != 0) + continue; + + perf_config_items__for_each_entry(§ion->items, item) { + const char *name = var + strlen(section->name) + 1; + + if (strcmp(name, item->name) == 0) { + char *value = item->value; + + if (value) { + printf("%s=%s\n", var, value); + return 0; + } + } + + } + } + + return 0; +} + static int show_config(struct perf_config_set *set) { struct perf_config_section *section; @@ -54,7 +84,7 @@ static int show_config(struct perf_config_set *set) int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused) { - int ret = 0; + int i, ret = 0; struct perf_config_set *set; char *user_config = mkpath("%s/.perfconfig", getenv("HOME")); @@ -100,7 +130,11 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused) } break; default: - usage_with_options(config_usage, config_options); + if (argc) + for (i = 0; argv[i]; i++) + ret = show_spec_config(set, argv[i]); + else + usage_with_options(config_usage, config_options); } perf_config_set__delete(set); |