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From: Phil Nelson <phil@cs.wwu.edu>

Browse Source 
Subject: [PATCHES] Added support for NetBSD/pc532.
This commit is contained in:
Marc G. Fournier
1997-06-06 01:37:23 +00:00
parent 355d6a2767
commit 15da18508f
2 changed files with 40 additions and 1 deletions
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38
src/backend/storage/ipc/s_lock.c
View File

@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/ipc/Attic/s_lock.c,v 1.13 1997/04/24 02:35:35 scrappy Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/ipc/Attic/s_lock.c,v 1.14 1997/06/06 01:37:14 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
@@ -486,4 +486,40 @@ S_INIT_LOCK(slock_t *lock)
#endif /* defined(linux) && defined(sparc) */
#if defined(NEED_NS32K_TAS_ASM)
int
tas(slock_t *m)
{
slock_t res = 0;
__asm__("movd 8(fp), r1");
__asm__("movqd 0, r0");
__asm__("sbitd r0, 0(r1)");
__asm__("sprb us, %0" : "=r" (res));
res = (res >> 5) & 1;
return res;
}
void
S_LOCK(slock_t *lock)
{
while (tas(lock))
;
}
void
S_UNLOCK(slock_t *lock)
{
*lock = 0;
}
void
S_INIT_LOCK(slock_t *lock)
{
S_UNLOCK(lock);
}
#endif /* NEED_NS32K_TAS_ASM */
#endif /* HAS_TEST_AND_SET */

3
src/include/port/BSD44_derived.h
View File

@@ -5,6 +5,9 @@
# if defined(sparc)
# define NEED_SPARC_TAS_ASM
# endif
# if defined(ns32k)
# define NEED_NS32k_TAS_ASM
# endif
# define HAS_TEST_AND_SET
# if defined(__mips__)
/* # undef HAS_TEST_AND_SET */