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Support IBM S/390. Patches from Neale Ferguson@softwareAG-usa.com.

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This commit is contained in:
Thomas G. Lockhart
2000-12-03 14:41:47 +00:00
parent 13dbd0276a
commit 48781d44e4
2 changed files with 32 additions and 2 deletions
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25
src/include/storage/s_lock.h
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.74 2000/11/28 23:27:57 tgl Exp $
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.75 2000/12/03 14:41:42 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@ -128,6 +128,29 @@ __asm__("swpb %0, %0, [%3]": "=r"(_res), "=m"(*lock):"0"(_res), "r" (lock));
#endif /* __arm__ */
#if defined(__s390__)
/*
* S/390 Linux
*/
#define TAS(lock) tas(lock)
static inline int
tas(volatile slock_t *lock)
{
int _res;
__asm__ __volatile(" la 1,1\n"
" l 2,%2\n"
" slr 0,0\n"
" cs 0,1,0(2)\n"
" lr %1,0"
: "=m" (lock), "=d" (_res)
: "m" (lock)
: "0", "1", "2");
return (_res);
}
#endif /* __s390__ */
#if defined(__sparc__)