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TAS code originally written for s390 (32-bit) does not work for s390x

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(64-bit).  Fix it.  Per report from Permaine Cheung.
This commit is contained in:
Tom Lane
2002-11-22 01:13:28 +00:00
parent f3fa6c6ba1
commit 5fe20771d5
1 changed files with 29 additions and 2 deletions
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31
src/include/storage/s_lock.h
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@ -63,7 +63,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: s_lock.h,v 1.101 2002/09/21 00:14:05 tgl Exp $
* $Id: s_lock.h,v 1.101.2.1 2002/11/22 01:13:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -150,7 +150,8 @@ tas(volatile slock_t *lock)
#endif /* __arm__ */
#if defined(__s390__) || defined(__s390x__)
#if defined(__s390__) && !defined(__s390x__)
/*
* S/390 Linux
*/
@ -176,6 +177,32 @@ tas(volatile slock_t *lock)
#endif /* __s390__ */
#if defined(__s390x__)
/*
* S/390x Linux (64-bit zSeries)
*/
#define TAS(lock) tas(lock)
static __inline__ int
tas(volatile slock_t *lock)
{
int _res;
__asm__ __volatile__(
" la 1,1 \n"
" lg 2,%2 \n"
" slr 0,0 \n"
" cs 0,1,0(2) \n"
" lr %1,0 \n"
: "=m"(lock), "=d"(_res)
: "m"(lock)
: "0", "1", "2");
return (_res);
}
#endif /* __s390x__ */
#if defined(__sparc__)
#define TAS(lock) tas(lock)