From: Namhyung Kim <namhyung....@lge.com>
The ftrace sub-commands share some common code so that factor it out
to ftrace_setup() and ftrace_teardown() helpers.
Cc: Steven Rostedt <rost...@goodmis.org>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
tools/perf/builtin-ftrace.c | 172 +++++++++++++++++---------------------------
1 file changed, 65 insertions(+), 107 deletions(-)
diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index 83ed6d797087..fa7a9c59e228 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -1413,10 +1413,59 @@ out:
return ret;
}
+static int ftrace_setup(struct perf_ftrace *ftrace, int argc, const char
**argv)
+{
+ int ret;
+ char errbuf[512];
+
+ ret = perf_target__validate(&ftrace->target);
+ if (ret) {
+ perf_target__strerror(&ftrace->target, ret, errbuf, 512);
+ pr_err("%s\n", errbuf);
+ return -EINVAL;
+ }
+
+ ftrace->evlist = perf_evlist__new();
+ if (ftrace->evlist == NULL)
+ return -ENOMEM;
+
+ ret = perf_evlist__create_maps(ftrace->evlist, &ftrace->target);
+ if (ret < 0)
+ goto out;
+
+ if (ftrace->tracer == NULL)
+ ftrace->tracer = DEFAULT_TRACER;
+
+ if (ftrace->dirname == NULL)
+ ftrace->dirname = DEFAULT_DIRNAME;
+
+ if (argc) {
+ ret = perf_evlist__prepare_workload(ftrace->evlist,
+ &ftrace->target,
+ argv, false, true);
+ if (ret < 0)
+ goto out_maps;
+ }
+ return 0;
+
+out_maps:
+ perf_evlist__delete_maps(ftrace->evlist);
+out:
+ perf_evlist__delete(ftrace->evlist);
+
+ return ret;
+}
+
+static void ftrace_teardown(struct perf_ftrace *ftrace)
+{
+ perf_evlist__delete_maps(ftrace->evlist);
+ perf_evlist__delete(ftrace->evlist);
+}
+
static int
__cmd_ftrace_live(struct perf_ftrace *ftrace, int argc, const char **argv)
{
- int ret = -1;
+ int ret;
const char * const live_usage[] = {
"perf ftrace live [<options>] [<command>]",
"perf ftrace live [<options>] -- <command> [<options>]",
@@ -1441,47 +1490,22 @@ __cmd_ftrace_live(struct perf_ftrace *ftrace, int argc,
const char **argv)
if (!argc && perf_target__none(&ftrace->target))
usage_with_options(live_usage, live_options);
- ret = perf_target__validate(&ftrace->target);
- if (ret) {
- char errbuf[512];
-
- perf_target__strerror(&ftrace->target, ret, errbuf, 512);
- pr_err("%s\n", errbuf);
- return -EINVAL;
- }
-
- ftrace->evlist = perf_evlist__new();
- if (ftrace->evlist == NULL)
- return -ENOMEM;
-
- ret = perf_evlist__create_maps(ftrace->evlist, &ftrace->target);
+ ret = ftrace_setup(ftrace, argc, argv);
if (ret < 0)
- goto out;
-
- if (ftrace->tracer == NULL)
- ftrace->tracer = DEFAULT_TRACER;
-
- if (argc && perf_evlist__prepare_workload(ftrace->evlist,
- &ftrace->target,
- argv, false, true) < 0)
- goto out_maps;
+ return ret;
setup_pager();
ret = do_ftrace_live(ftrace);
-out_maps:
- perf_evlist__delete_maps(ftrace->evlist);
-out:
- perf_evlist__delete(ftrace->evlist);
-
+ ftrace_teardown(ftrace);
return ret;
}
static int
__cmd_ftrace_record(struct perf_ftrace *ftrace, int argc, const char **argv)
{
- int ret = -1;
+ int ret;
const char * const record_usage[] = {
"perf ftrace record [<options>] [<command>]",
"perf ftrace record [<options>] -- <command> [<options>]",
@@ -1508,48 +1532,20 @@ __cmd_ftrace_record(struct perf_ftrace *ftrace, int
argc, const char **argv)
if (!argc && perf_target__none(&ftrace->target))
usage_with_options(record_usage, record_options);
- ret = perf_target__validate(&ftrace->target);
- if (ret) {
- char errbuf[512];
-
- perf_target__strerror(&ftrace->target, ret, errbuf, 512);
- pr_err("%s\n", errbuf);
- return -EINVAL;
- }
-
- ftrace->evlist = perf_evlist__new();
- if (ftrace->evlist == NULL)
- return -ENOMEM;
-
- ret = perf_evlist__create_maps(ftrace->evlist, &ftrace->target);
+ ret = ftrace_setup(ftrace, argc, argv);
if (ret < 0)
- goto out;
-
- if (ftrace->tracer == NULL)
- ftrace->tracer = DEFAULT_TRACER;
-
- if (ftrace->dirname == NULL)
- ftrace->dirname = DEFAULT_DIRNAME;
-
- if (argc && perf_evlist__prepare_workload(ftrace->evlist,
- &ftrace->target,
- argv, false, true) < 0)
- goto out_maps;
+ return ret;
ret = do_ftrace_record(ftrace);
-out_maps:
- perf_evlist__delete_maps(ftrace->evlist);
-out:
- perf_evlist__delete(ftrace->evlist);
-
+ ftrace_teardown(ftrace);
return ret;
}
static int
__cmd_ftrace_show(struct perf_ftrace *ftrace, int argc, const char **argv)
{
- int ret = -1;
+ int ret;
const char * const show_usage[] = {
"perf ftrace show [<options>]",
NULL
@@ -1569,41 +1565,22 @@ __cmd_ftrace_show(struct perf_ftrace *ftrace, int argc,
const char **argv)
if (argc)
usage_with_options(show_usage, show_options);
- ret = perf_target__validate(&ftrace->target);
- if (ret) {
- char errbuf[512];
-
- perf_target__strerror(&ftrace->target, ret, errbuf, 512);
- pr_err("%s\n", errbuf);
- return -EINVAL;
- }
-
- ftrace->evlist = perf_evlist__new();
- if (ftrace->evlist == NULL)
- return -ENOMEM;
-
- ret = perf_evlist__create_maps(ftrace->evlist, &ftrace->target);
+ ret = ftrace_setup(ftrace, argc, argv);
if (ret < 0)
- goto out;
-
- if (ftrace->dirname == NULL)
- ftrace->dirname = DEFAULT_DIRNAME;
+ return ret;
setup_pager();
ret = do_ftrace_show(ftrace);
- perf_evlist__delete_maps(ftrace->evlist);
-out:
- perf_evlist__delete(ftrace->evlist);
-
+ ftrace_teardown(ftrace);
return ret;
}
static int
__cmd_ftrace_report(struct perf_ftrace *ftrace, int argc, const char **argv)
{
- int ret = -1;
+ int ret;
const char * const report_usage[] = {
"perf ftrace report [<options>]",
NULL
@@ -1629,25 +1606,9 @@ __cmd_ftrace_report(struct perf_ftrace *ftrace, int
argc, const char **argv)
if (argc)
usage_with_options(report_usage, report_options);
- ret = perf_target__validate(&ftrace->target);
- if (ret) {
- char errbuf[512];
-
- perf_target__strerror(&ftrace->target, ret, errbuf, 512);
- pr_err("%s\n", errbuf);
- return -EINVAL;
- }
-
- ftrace->evlist = perf_evlist__new();
- if (ftrace->evlist == NULL)
- return -ENOMEM;
-
- ret = perf_evlist__create_maps(ftrace->evlist, &ftrace->target);
+ ret = ftrace_setup(ftrace, argc, argv);
if (ret < 0)
- goto out;
-
- if (ftrace->dirname == NULL)
- ftrace->dirname = DEFAULT_DIRNAME;
+ return ret;
perf_hpp__init();
@@ -1660,10 +1621,7 @@ __cmd_ftrace_report(struct perf_ftrace *ftrace, int
argc, const char **argv)
ret = do_ftrace_report(ftrace);
- perf_evlist__delete_maps(ftrace->evlist);
-out:
- perf_evlist__delete(ftrace->evlist);
-
+ ftrace_teardown(ftrace);
return ret;
}
--
1.7.11.7
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