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This instance spotted by Martin Husemann.
This commit is contained in:
kleink 2004-01-19 16:18:33 +00:00
parent b81e36a907
commit 9f0429b6cc
1 changed files with 6 additions and 4 deletions
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10
lib/libpthread/pthread_lock.c
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@ -1,4 +1,4 @@
/* $NetBSD: pthread_lock.c,v 1.7 2003/05/16 23:37:47 scw Exp $ */
/* $NetBSD: pthread_lock.c,v 1.8 2004/01/19 16:18:33 kleink Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: pthread_lock.c,v 1.7 2003/05/16 23:37:47 scw Exp $");
__RCSID("$NetBSD: pthread_lock.c,v 1.8 2004/01/19 16:18:33 kleink Exp $");
#include <sys/param.h>
#include <sys/ras.h>
@ -75,10 +75,12 @@ pthread__ras_simple_lock_try(__cpu_simple_lock_t *alp)
__cpu_simple_lock_t old;
/* This is the atomic sequence. */
__asm __volatile(".globl pthread__lock_ras_start; pthread__lock_ras_start:");
__asm __volatile(".globl pthread__lock_ras_start \n"
"pthread__lock_ras_start:");
old = *alp;
*alp = __SIMPLELOCK_LOCKED;
__asm __volatile(".globl pthread__lock_ras_end; pthread__lock_ras_end:");
__asm __volatile(".globl pthread__lock_ras_end \n"
"pthread__lock_ras_end:");
return (old == __SIMPLELOCK_UNLOCKED);
}