make posix_spawn (and functions that use it) use CLONE_VFORK flag

[musl] / src / process / posix_spawn.c

diff --git a/src/process/posix_spawn.c b/src/process/posix_spawn.c
index e6a031c..68cf795 100644 (file)
--- a/src/process/posix_spawn.c
+++ b/src/process/posix_spawn.c
@@ -138,7 +138,8 @@ int __posix_spawnx(pid_t *restrict res, const char *restrict path,
        args.envp = envp;
        pthread_sigmask(SIG_BLOCK, SIGALL_SET, &args.oldmask);
 
-       pid = __clone(child, stack+sizeof stack, CLONE_VM|SIGCHLD, &args);
+       pid = __clone(child, stack+sizeof stack,
+               CLONE_VM|CLONE_VFORK|SIGCHLD, &args);
        close(args.p[1]);
 
        if (pid > 0) {