From 98b4508a0de3f6d45ab55279c11ef9b965f9fd82 Mon Sep 17 00:00:00 2001
From: "Tate, Hongliang Tian" <tatetian@gmail.com>
Date: Sun, 6 Jan 2019 19:42:36 +0800
Subject: [PATCH] Use posix_spawn and wait4 in libc

---
 test/spawn/main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/test/spawn/main.c b/test/spawn/main.c
index 60f1b18b..8157d67c 100644
--- a/test/spawn/main.c
+++ b/test/spawn/main.c
@@ -1,19 +1,21 @@
 #include <sys/syscall.h>
+#include <sys/wait.h>
 #include <unistd.h>
 #include <stdio.h>
+#include <spawn.h>
 
 int main(void) {
     int ret, child_pid, status;
     printf("Run a parent process has pid = %d and ppid = %d\n", getpid(), getppid());
 
-    ret = syscall(__NR_spawn, &child_pid, "getpid/bin.encrypted", NULL, NULL);
+    ret = posix_spawn(&child_pid, "getpid/bin.encrypted", NULL, NULL, NULL, NULL);
     if (ret < 0) {
         printf("ERROR: failed to spawn a child process\n");
         return -1;
     }
     printf("Spawn a new proces successfully (pid = %d)\n", child_pid);
 
-    ret = syscall(__NR_wait4, -1, &status, 0);
+    ret = wait4(-1, &status, 0, NULL);
     if (ret < 0) {
         printf("ERROR: failed to wait4 the child process\n");
         return -1;