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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-09-30 19:54:10 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-10-02 18:36:27 -0300
commit5ded57ac1bdb99b716c1da96eb8b5d387f5eb676 (patch)
treeaa40671b77f51a20f95fb77a5c36059b61c8b4ef
parent5852a445a00f346302411f50aa168e422c7e7ab2 (diff)
downloadlinux-linaro-stable-5ded57ac1bdb99b716c1da96eb8b5d387f5eb676.tar.gz
perf inject: Remove static variables
We want to reduce the impact that each of the builtins has on perf as a whole, so use the superclassing of perf_tool mechanizm to move its config knobs to the stack, so that only if we use that tool, its impact will be felt. In this case is more about consistency, as the impact of this tool is minimal. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-z2b3matvawihtenmez9hkcja@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/builtin-inject.c72
1 files changed, 38 insertions, 34 deletions
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index e249f244b22a..3c9ab55f49e6 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -14,7 +14,10 @@
#include "util/parse-options.h"
-static bool inject_build_ids;
+struct perf_inject {
+ struct perf_tool tool;
+ bool build_ids;
+};
static int perf_event__repipe_synth(struct perf_tool *tool __maybe_unused,
union perf_event *event,
@@ -207,22 +210,6 @@ repipe:
return 0;
}
-struct perf_tool perf_inject = {
- .sample = perf_event__repipe_sample,
- .mmap = perf_event__repipe,
- .comm = perf_event__repipe,
- .fork = perf_event__repipe,
- .exit = perf_event__repipe,
- .lost = perf_event__repipe,
- .read = perf_event__repipe_sample,
- .throttle = perf_event__repipe,
- .unthrottle = perf_event__repipe,
- .attr = perf_event__repipe_attr,
- .event_type = perf_event__repipe_event_type_synth,
- .tracing_data = perf_event__repipe_tracing_data_synth,
- .build_id = perf_event__repipe_op2_synth,
-};
-
extern volatile int session_done;
static void sig_handler(int sig __maybe_unused)
@@ -230,25 +217,25 @@ static void sig_handler(int sig __maybe_unused)
session_done = 1;
}
-static int __cmd_inject(void)
+static int __cmd_inject(struct perf_inject *inject)
{
struct perf_session *session;
int ret = -EINVAL;
signal(SIGINT, sig_handler);
- if (inject_build_ids) {
- perf_inject.sample = perf_event__inject_buildid;
- perf_inject.mmap = perf_event__repipe_mmap;
- perf_inject.fork = perf_event__repipe_task;
- perf_inject.tracing_data = perf_event__repipe_tracing_data;
+ if (inject->build_ids) {
+ inject->tool.sample = perf_event__inject_buildid;
+ inject->tool.mmap = perf_event__repipe_mmap;
+ inject->tool.fork = perf_event__repipe_task;
+ inject->tool.tracing_data = perf_event__repipe_tracing_data;
}
- session = perf_session__new("-", O_RDONLY, false, true, &perf_inject);
+ session = perf_session__new("-", O_RDONLY, false, true, &inject->tool);
if (session == NULL)
return -ENOMEM;
- ret = perf_session__process_events(session, &perf_inject);
+ ret = perf_session__process_events(session, &inject->tool);
perf_session__delete(session);
@@ -260,16 +247,33 @@ static const char * const report_usage[] = {
NULL
};
-static const struct option options[] = {
- OPT_BOOLEAN('b', "build-ids", &inject_build_ids,
- "Inject build-ids into the output stream"),
- OPT_INCR('v', "verbose", &verbose,
- "be more verbose (show build ids, etc)"),
- OPT_END()
-};
-
int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
{
+ struct perf_inject inject = {
+ .tool = {
+ .sample = perf_event__repipe_sample,
+ .mmap = perf_event__repipe,
+ .comm = perf_event__repipe,
+ .fork = perf_event__repipe,
+ .exit = perf_event__repipe,
+ .lost = perf_event__repipe,
+ .read = perf_event__repipe_sample,
+ .throttle = perf_event__repipe,
+ .unthrottle = perf_event__repipe,
+ .attr = perf_event__repipe_attr,
+ .event_type = perf_event__repipe_event_type_synth,
+ .tracing_data = perf_event__repipe_tracing_data_synth,
+ .build_id = perf_event__repipe_op2_synth,
+ },
+ };
+ const struct option options[] = {
+ OPT_BOOLEAN('b', "build-ids", &inject.build_ids,
+ "Inject build-ids into the output stream"),
+ OPT_INCR('v', "verbose", &verbose,
+ "be more verbose (show build ids, etc)"),
+ OPT_END()
+ };
+
argc = parse_options(argc, argv, options, report_usage, 0);
/*
@@ -281,5 +285,5 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
if (symbol__init() < 0)
return -1;
- return __cmd_inject();
+ return __cmd_inject(&inject);
}