X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Flinux%2Fsbrk.c;h=5fab74be29c83d729c5718d13f5106a1cd9be41d;hb=c3c5e88c31b78f7b32b3d8b5c2450d75fa858951;hp=56f60d1b492540ea8145353e349b7562dfa2b90d;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/linux/sbrk.c b/src/linux/sbrk.c
index 56f60d1b..5fab74be 100644
--- a/src/linux/sbrk.c
+++ b/src/linux/sbrk.c
@@ -3,5 +3,7 @@
 
 void *sbrk(ptrdiff_t inc)
 {
-	return (void *)syscall1(__NR_brk, syscall1(__NR_brk, 0)+inc);
+	unsigned long cur = syscall(SYS_brk, 0);
+	if (inc && syscall(SYS_brk, cur+inc) != cur+inc) return (void *)-1;
+	return (void *)cur;
 }