From b185f8d88982e070af76a9683c2cb5543feafb85 Mon Sep 17 00:00:00 2001
From: hujun5 <hujun5@xiaomi.com>
Date: Fri, 4 Aug 2023 11:33:29 +0800
Subject: [PATCH] binfmt: add enter_critical_section
adding enter_critical_section to ensure non preemption in smp
Signed-off-by: hujun5 <hujun5@xiaomi.com>
---
binfmt/binfmt_exec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/binfmt/binfmt_exec.c b/binfmt/binfmt_exec.c
index 2d281b6dce..ba1d2f3cb7 100644
--- a/binfmt/binfmt_exec.c
+++ b/binfmt/binfmt_exec.c
@@ -77,6 +77,7 @@ int exec_spawn(FAR const char *filename, FAR char * const *argv,
FAR const posix_spawnattr_t *attr)
{
FAR struct binary_s *bin;
+ irqstate_t flags;
int pid;
int ret;
@@ -126,6 +127,7 @@ int exec_spawn(FAR const char *filename, FAR char * const *argv,
* handler.
*/
+ flags = enter_critical_section();
sched_lock();
/* Then start the module */
@@ -160,10 +162,12 @@ int exec_spawn(FAR const char *filename, FAR char * const *argv,
#endif
sched_unlock();
+ leave_critical_section(flags);
return pid;
errout_with_lock:
sched_unlock();
+ leave_critical_section(flags);
unload_module(bin);
errout_with_bin:
kmm_free(bin);