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-rw-r--r--tools/perf/builtin-record.c16
-rw-r--r--tools/perf/builtin-stat.c17
-rw-r--r--tools/perf/builtin-trace.c2
-rw-r--r--tools/perf/tests/perf-record.c3
-rw-r--r--tools/perf/tests/task-exit.c19
-rw-r--r--tools/perf/util/evlist.c12
-rw-r--r--tools/perf/util/evlist.h3
7 files changed, 32 insertions, 40 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index f987d385c6f..ea7c3060e8e 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -390,7 +390,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
if (forks) {
err = perf_evlist__prepare_workload(evsel_list, &opts->target,
argv, file->is_pipe,
- true);
+ workload_exec_failed_signal);
if (err < 0) {
pr_err("Couldn't run the workload!\n");
goto out_delete_session;
@@ -507,20 +507,8 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
/*
* Let the child rip
*/
- if (forks) {
- struct sigaction act = {
- .sa_flags = SA_SIGINFO,
- .sa_sigaction = workload_exec_failed_signal,
- };
- /*
- * perf_evlist__prepare_workload will, after we call
- * perf_evlist__start_Workload, send a SIGUSR1 if the exec call
- * fails, that we will catch in workload_signal to flip
- * workload_exec_errno.
- */
- sigaction(SIGUSR1, &act, NULL);
+ if (forks)
perf_evlist__start_workload(evsel_list);
- }
for (;;) {
int hits = rec->samples;
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 9d0d52d55ee..f8456cad656 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -58,7 +58,6 @@
#include "util/thread.h"
#include "util/thread_map.h"
-#include <signal.h>
#include <stdlib.h>
#include <sys/prctl.h>
#include <locale.h>
@@ -542,8 +541,8 @@ static int __run_perf_stat(int argc, const char **argv)
}
if (forks) {
- if (perf_evlist__prepare_workload(evsel_list, &target, argv,
- false, true) < 0) {
+ if (perf_evlist__prepare_workload(evsel_list, &target, argv, false,
+ workload_exec_failed_signal) < 0) {
perror("failed to prepare workload");
return -1;
}
@@ -598,18 +597,6 @@ static int __run_perf_stat(int argc, const char **argv)
clock_gettime(CLOCK_MONOTONIC, &ref_time);
if (forks) {
- struct sigaction act = {
- .sa_flags = SA_SIGINFO,
- .sa_sigaction = workload_exec_failed_signal,
- };
- /*
- * perf_evlist__prepare_workload will, after we call
- * perf_evlist__start_Workload, send a SIGUSR1 if the exec call
- * fails, that we will catch in workload_signal to flip
- * workload_exec_errno.
- */
- sigaction(SIGUSR1, &act, NULL);
-
perf_evlist__start_workload(evsel_list);
handle_initial_delay();
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index c5b4bc51175..5498eacf8fc 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1895,7 +1895,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
if (forks) {
err = perf_evlist__prepare_workload(evlist, &trace->opts.target,
- argv, false, false);
+ argv, false, NULL);
if (err < 0) {
fprintf(trace->output, "Couldn't run the workload!\n");
goto out_delete_maps;
diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index eeba562920e..fa0ed35afb9 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -83,8 +83,7 @@ int test__PERF_RECORD(void)
* so that we have time to open the evlist (calling sys_perf_event_open
* on all the fds) and then mmap them.
*/
- err = perf_evlist__prepare_workload(evlist, &opts.target, argv,
- false, false);
+ err = perf_evlist__prepare_workload(evlist, &opts.target, argv, false, NULL);
if (err < 0) {
pr_debug("Couldn't run the workload!\n");
goto out_delete_maps;
diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index d09ab579119..44e339d4e29 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -9,12 +9,21 @@
static int exited;
static int nr_exit;
-static void sig_handler(int sig)
+static void sig_handler(int sig __maybe_unused)
{
exited = 1;
+}
- if (sig == SIGUSR1)
- nr_exit = -1;
+/*
+ * perf_evlist__prepare_workload will send a SIGUSR1 if the fork fails, since
+ * we asked by setting its exec_error to this handler.
+ */
+static void workload_exec_failed_signal(int signo __maybe_unused,
+ siginfo_t *info __maybe_unused,
+ void *ucontext __maybe_unused)
+{
+ exited = 1;
+ nr_exit = -1;
}
/*
@@ -35,7 +44,6 @@ int test__task_exit(void)
const char *argv[] = { "true", NULL };
signal(SIGCHLD, sig_handler);
- signal(SIGUSR1, sig_handler);
evlist = perf_evlist__new_default();
if (evlist == NULL) {
@@ -57,7 +65,8 @@ int test__task_exit(void)
goto out_delete_maps;
}
- err = perf_evlist__prepare_workload(evlist, &target, argv, false, true);
+ err = perf_evlist__prepare_workload(evlist, &target, argv, false,
+ workload_exec_failed_signal);
if (err < 0) {
pr_debug("Couldn't run the workload!\n");
goto out_delete_maps;
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 4a30c87d24e..96b3ef547db 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1029,7 +1029,7 @@ out_err:
int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *target,
const char *argv[], bool pipe_output,
- bool want_signal)
+ void (*exec_error)(int signo, siginfo_t *info, void *ucontext))
{
int child_ready_pipe[2], go_pipe[2];
char bf;
@@ -1073,7 +1073,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *tar
execvp(argv[0], (char **)argv);
- if (want_signal) {
+ if (exec_error) {
union sigval val;
val.sival_int = errno;
@@ -1084,6 +1084,14 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *tar
exit(-1);
}
+ if (exec_error) {
+ struct sigaction act = {
+ .sa_flags = SA_SIGINFO,
+ .sa_sigaction = exec_error,
+ };
+ sigaction(SIGUSR1, &act, NULL);
+ }
+
if (target__none(target))
evlist->threads->map[0] = evlist->workload.pid;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 2fe51958ed8..18d1222c076 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -103,7 +103,8 @@ int record_opts__config(struct record_opts *opts);
int perf_evlist__prepare_workload(struct perf_evlist *evlist,
struct target *target,
const char *argv[], bool pipe_output,
- bool want_signal);
+ void (*exec_error)(int signo, siginfo_t *info,
+ void *ucontext));
int perf_evlist__start_workload(struct perf_evlist *evlist);
int perf_evlist__parse_mmap_pages(const struct option *opt,
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-30 00:48:08 +0000