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authorpatrick <patrick@openbsd.org>2017-02-20 08:42:46 +0000
committerpatrick <patrick@openbsd.org>2017-02-20 08:42:46 +0000
commit0d5f1b6af8b35d93fbe9c187a099b1eafdfbca8b (patch)
treed5252b3082f0bb684939e259a232285c1b5adb7d /lib/libc
parentVMX: assert that the supplied instruction length matches what is expected for (diff)
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__tfork(3) returns the thread ID of the new thread in x0, not x1. The
value returned in x1 on __tfork(3) is always zero, which made the code always fall into the child case.
Diffstat (limited to 'lib/libc')
-rw-r--r--lib/libc/arch/aarch64/sys/tfork_thread.S4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/libc/arch/aarch64/sys/tfork_thread.S b/lib/libc/arch/aarch64/sys/tfork_thread.S
index 333dd0461bb..5dda781adc2 100644
--- a/lib/libc/arch/aarch64/sys/tfork_thread.S
+++ b/lib/libc/arch/aarch64/sys/tfork_thread.S
@@ -1,4 +1,4 @@
-/* $OpenBSD: tfork_thread.S,v 1.1 2017/01/11 18:09:24 patrick Exp $ */
+/* $OpenBSD: tfork_thread.S,v 1.2 2017/02/20 08:42:46 patrick Exp $ */
/*
* Copyright (c) 2005 Dale Rahn <drahn@openbsd.org>
*
@@ -28,7 +28,7 @@ ENTRY(__tfork_thread)
bcs CERROR
/* check if we are parent or child */
- cbz x1, 1f
+ cbz x0, 1f
ret
1: