X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Fexit%2Fexit.c;h=fc2914844959eac78a3f76dccb302ef0d3d8fe25;hp=d0c1bfc1d5b68a08873a367549ad09d4b310ea91;hb=47c2a22fd6adcaf3f27b093df49bd97e3fdc16e7;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01

diff --git a/src/exit/exit.c b/src/exit/exit.c
index d0c1bfc1..fc291484 100644
--- a/src/exit/exit.c
+++ b/src/exit/exit.c
@@ -2,9 +2,14 @@
 #include <unistd.h>
 #include <stdio.h>
 #include "libc.h"
+#include "atomic.h"
+#include "syscall.h"
 
-/* __overflow.c and atexit.c override these */
-static int (*const dummy)() = 0;
+static void dummy()
+{
+}
+
+/* __towrite.c and atexit.c override these */
 weak_alias(dummy, __funcs_on_exit);
 weak_alias(dummy, __fflush_on_exit);
 
@@ -13,11 +18,11 @@ void exit(int code)
 	static int lock;
 
 	/* If more than one thread calls exit, hang until _Exit ends it all */
-	LOCK(&lock);
+	while (a_swap(&lock, 1)) __syscall(SYS_pause);
 
 	/* Only do atexit & stdio flush if they were actually used */
-	if (__funcs_on_exit) __funcs_on_exit();
-	if (__fflush_on_exit) __fflush_on_exit(0);
+	__funcs_on_exit();
+	__fflush_on_exit();
 
 	/* Destructor s**t is kept separate from atexit to avoid bloat */
 	if (libc.fini) libc.fini();