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Allow NetBSD, m64k to compile the ASM spinlock code. 

R?mi Zara
This commit is contained in:
Bruce Momjian 2004-12-18 22:12:52 +00:00
parent afc4ffe3c8
commit 08690d0688
1 changed files with 21 additions and 6 deletions
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27
src/backend/storage/lmgr/s_lock.c
View File

@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/lmgr/s_lock.c,v 1.32 2004/08/30 23:47:20 tgl Exp $
* $PostgreSQL: pgsql/src/backend/storage/lmgr/s_lock.c,v 1.33 2004/12/18 22:12:52 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -136,12 +136,26 @@ s_lock(volatile slock_t *lock, const char *file, int line)
#if defined(__m68k__)
/* really means: extern int tas(slock_t* **lock); */
static void
tas_dummy() /* really means: extern int tas(slock_t
* **lock); */
tas_dummy()
{
__asm__ __volatile__(
"\
#if defined(__NetBSD__) && defined(__ELF__)
/* no underscore for label and % for registers */
"\
.global tas \n\
tas: \n\
movel %sp@(0x4),%a0 \n\
tas %a0@ \n\
beq _success \n\
moveq #-128,%d0 \n\
rts \n\
_success: \n\
moveq #0,%d0 \n\
rts \n"
#else
"\
.global _tas \n\
_tas: \n\
movel sp@(0x4),a0 \n\
@ -151,8 +165,9 @@ _tas: \n\
rts \n\
_success: \n\
moveq #0,d0 \n\
rts \n\
");
rts \n"
#endif /* __NetBSD__ && __ELF__ */
);
}
#endif /* __m68k__ */