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Diffstat (limited to 'tools/perf/util/synthetic-events.c')
-rw-r--r--tools/perf/util/synthetic-events.c73
1 files changed, 54 insertions, 19 deletions
diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
index a7e981b2d7de..198982109f0f 100644
--- a/tools/perf/util/synthetic-events.c
+++ b/tools/perf/util/synthetic-events.c
@@ -715,7 +715,8 @@ static int __event__synthesize_thread(union perf_event *comm_event,
union perf_event *fork_event,
union perf_event *namespaces_event,
pid_t pid, int full, perf_event__handler_t process,
- struct perf_tool *tool, struct machine *machine, bool mmap_data)
+ struct perf_tool *tool, struct machine *machine,
+ bool needs_mmap, bool mmap_data)
{
char filename[PATH_MAX];
struct dirent **dirent;
@@ -739,7 +740,7 @@ static int __event__synthesize_thread(union perf_event *comm_event,
* send mmap only for thread group leader
* see thread__init_maps()
*/
- if (pid == tgid &&
+ if (pid == tgid && needs_mmap &&
perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid,
process, machine, mmap_data))
return -1;
@@ -786,7 +787,7 @@ static int __event__synthesize_thread(union perf_event *comm_event,
break;
rc = 0;
- if (_pid == pid && !kernel_thread) {
+ if (_pid == pid && !kernel_thread && needs_mmap) {
/* process the parent's maps too */
rc = perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid,
process, machine, mmap_data);
@@ -806,7 +807,7 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
struct perf_thread_map *threads,
perf_event__handler_t process,
struct machine *machine,
- bool mmap_data)
+ bool needs_mmap, bool mmap_data)
{
union perf_event *comm_event, *mmap_event, *fork_event;
union perf_event *namespaces_event;
@@ -836,7 +837,7 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
fork_event, namespaces_event,
perf_thread_map__pid(threads, thread), 0,
process, tool, machine,
- mmap_data)) {
+ needs_mmap, mmap_data)) {
err = -1;
break;
}
@@ -862,7 +863,7 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
fork_event, namespaces_event,
comm_event->comm.pid, 0,
process, tool, machine,
- mmap_data)) {
+ needs_mmap, mmap_data)) {
err = -1;
break;
}
@@ -882,6 +883,7 @@ out:
static int __perf_event__synthesize_threads(struct perf_tool *tool,
perf_event__handler_t process,
struct machine *machine,
+ bool needs_mmap,
bool mmap_data,
struct dirent **dirent,
int start,
@@ -926,7 +928,7 @@ static int __perf_event__synthesize_threads(struct perf_tool *tool,
*/
__event__synthesize_thread(comm_event, mmap_event, fork_event,
namespaces_event, pid, 1, process,
- tool, machine, mmap_data);
+ tool, machine, needs_mmap, mmap_data);
}
err = 0;
@@ -945,6 +947,7 @@ struct synthesize_threads_arg {
struct perf_tool *tool;
perf_event__handler_t process;
struct machine *machine;
+ bool needs_mmap;
bool mmap_data;
struct dirent **dirent;
int num;
@@ -956,7 +959,8 @@ static void *synthesize_threads_worker(void *arg)
struct synthesize_threads_arg *args = arg;
__perf_event__synthesize_threads(args->tool, args->process,
- args->machine, args->mmap_data,
+ args->machine,
+ args->needs_mmap, args->mmap_data,
args->dirent,
args->start, args->num);
return NULL;
@@ -965,7 +969,7 @@ static void *synthesize_threads_worker(void *arg)
int perf_event__synthesize_threads(struct perf_tool *tool,
perf_event__handler_t process,
struct machine *machine,
- bool mmap_data,
+ bool needs_mmap, bool mmap_data,
unsigned int nr_threads_synthesize)
{
struct synthesize_threads_arg *args = NULL;
@@ -994,7 +998,8 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
if (thread_nr <= 1) {
err = __perf_event__synthesize_threads(tool, process,
- machine, mmap_data,
+ machine,
+ needs_mmap, mmap_data,
dirent, base, n);
goto free_dirent;
}
@@ -1015,6 +1020,7 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
args[i].tool = tool;
args[i].process = process;
args[i].machine = machine;
+ args[i].needs_mmap = needs_mmap;
args[i].mmap_data = mmap_data;
args[i].dirent = dirent;
}
@@ -1775,26 +1781,27 @@ out_err:
int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
struct target *target, struct perf_thread_map *threads,
- perf_event__handler_t process, bool data_mmap,
- unsigned int nr_threads_synthesize)
+ perf_event__handler_t process, bool needs_mmap,
+ bool data_mmap, unsigned int nr_threads_synthesize)
{
if (target__has_task(target))
- return perf_event__synthesize_thread_map(tool, threads, process, machine, data_mmap);
+ return perf_event__synthesize_thread_map(tool, threads, process, machine,
+ needs_mmap, data_mmap);
else if (target__has_cpu(target))
- return perf_event__synthesize_threads(tool, process,
- machine, data_mmap,
+ return perf_event__synthesize_threads(tool, process, machine,
+ needs_mmap, data_mmap,
nr_threads_synthesize);
/* command specified */
return 0;
}
int machine__synthesize_threads(struct machine *machine, struct target *target,
- struct perf_thread_map *threads, bool data_mmap,
- unsigned int nr_threads_synthesize)
+ struct perf_thread_map *threads, bool needs_mmap,
+ bool data_mmap, unsigned int nr_threads_synthesize)
{
return __machine__synthesize_threads(machine, NULL, target, threads,
- perf_event__process, data_mmap,
- nr_threads_synthesize);
+ perf_event__process, needs_mmap,
+ data_mmap, nr_threads_synthesize);
}
static struct perf_record_event_update *event_update_event__new(size_t size, u64 type, u64 id)
@@ -2230,3 +2237,31 @@ int perf_event__synthesize_for_pipe(struct perf_tool *tool,
return ret;
}
+
+int parse_synth_opt(char *synth)
+{
+ char *p, *q;
+ int ret = 0;
+
+ if (synth == NULL)
+ return -1;
+
+ for (q = synth; (p = strsep(&q, ",")); p = q) {
+ if (!strcasecmp(p, "no") || !strcasecmp(p, "none"))
+ return 0;
+
+ if (!strcasecmp(p, "all"))
+ return PERF_SYNTH_ALL;
+
+ if (!strcasecmp(p, "task"))
+ ret |= PERF_SYNTH_TASK;
+ else if (!strcasecmp(p, "mmap"))
+ ret |= PERF_SYNTH_TASK | PERF_SYNTH_MMAP;
+ else if (!strcasecmp(p, "cgroup"))
+ ret |= PERF_SYNTH_CGROUP;
+ else
+ return -1;
+ }
+
+ return ret;
+}
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-04 08:06:35 +0300