svn commit: r285694 - head/sys/arm/include
Andrew Turner
andrew at FreeBSD.org
Sun Jul 19 16:55:49 UTC 2015
Author: andrew
Date: Sun Jul 19 16:55:47 2015
New Revision: 285694
URL: https://svnweb.freebsd.org/changeset/base/285694
Log:
Fix atomic_store_64, it should write the value passed in, not the value
read by the load.
Pointy Hat: andrew
Modified:
head/sys/arm/include/atomic-v6.h
Modified: head/sys/arm/include/atomic-v6.h
==============================================================================
--- head/sys/arm/include/atomic-v6.h Sun Jul 19 16:05:34 2015 (r285693)
+++ head/sys/arm/include/atomic-v6.h Sun Jul 19 16:55:47 2015 (r285694)
@@ -558,7 +558,7 @@ atomic_store_64(volatile uint64_t *p, ui
__asm __volatile(
"1: \n"
" ldrexd %Q[tmp], %R[tmp], [%[ptr]] \n"
- " strexd %[exf], %Q[tmp], %R[tmp], [%[ptr]] \n"
+ " strexd %[exf], %Q[val], %R[val], [%[ptr]] \n"
" teq %[exf], #0 \n"
" it ne \n"
" bne 1b \n"
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