Fix fflush() & exit() order bug

GJDuck · Jun 20, 2022 · 1966206 · 1966206
1 parent a475229
commit 1966206
Showing 1 changed file with 12 additions and 12 deletions.
diff --git a/examples/stdlib.c b/examples/stdlib.c
@@ -704,18 +704,6 @@ static int execve(const char *filename, char *const argv[],
     return (int)syscall(SYS_execve, filename, argv, envp);
 }
 
-static void exit(int status)
-{
-    fflush(stdin);
-    fclose(stdin);
-    fflush(stdout);
-    fclose(stdout);
-    fflush(stderr);
-    fclose(stderr);
-    (void)syscall(SYS_exit, status);
-    __builtin_unreachable();
-}
-
 static pid_t waitpid(pid_t pid, int *status, int options)
 {
     return (pid_t)syscall(SYS_wait4, pid, status, options, NULL);
@@ -3774,6 +3762,18 @@ static char *getenv(const char *name)
     return NULL;
 }
 
+static __attribute__((__noreturn__)) void exit(int status)
+{
+    fflush(stdin);
+    fclose(stdin);
+    fflush(stdout);
+    fclose(stdout);
+    fflush(stderr);
+    fclose(stderr);
+    (void)syscall(SYS_exit, status);
+    __builtin_unreachable();
+}
+
 static __attribute__((__noreturn__)) void abort(void)
 {
     kill(getpid(), SIGABRT);