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-rw-r--r--src/process/posix_spawn.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c
index 604756e9..8a6ff6db 100644
--- a/src/process/posix_spawn.c
+++ b/src/process/posix_spawn.c
@@ -5,9 +5,16 @@
#include <fcntl.h>
#include "syscall.h"
#include "fdop.h"
+#include "libc.h"
extern char **environ;
+static void dummy_0()
+{
+}
+weak_alias(dummy_0, __acquire_ptc);
+weak_alias(dummy_0, __release_ptc);
+
pid_t __vfork(void);
int __posix_spawnx(pid_t *restrict res, const char *restrict path,
@@ -24,7 +31,10 @@ int __posix_spawnx(pid_t *restrict res, const char *restrict path,
if (!attr) attr = &dummy_attr;
sigprocmask(SIG_BLOCK, (void *)(uint64_t []){-1}, &oldmask);
+
+ __acquire_ptc();
pid = __vfork();
+ __release_ptc();
if (pid) {
sigprocmask(SIG_SETMASK, &oldmask, 0);