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Commit58ed123

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Fix for netbsd locking, from Henry B. Hotz.
1 parente2617c8 commit58ed123

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2 files changed

+41
-2
lines changed

2 files changed

+41
-2
lines changed

‎src/include/port/BSD44_derived.h

Lines changed: 11 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,15 +1,25 @@
11
#defineUSE_POSIX_TIME
2+
23
#if defined(i386)
34
#defineNEED_I386_TAS_ASM
5+
#defineHAS_TEST_AND_SET
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#endif
7+
58
#if defined(sparc)
69
#defineNEED_SPARC_TAS_ASM
10+
#defineHAS_TEST_AND_SET
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#endif
12+
813
#if defined(ns32k)
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#defineNEED_NS32k_TAS_ASM
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#defineHAS_TEST_AND_SET
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#endif
17+
18+
#if defined(__m68k__)
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#defineHAS_TEST_AND_SET
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#endif
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1222
#if defined(__mips__)
13-
/* #undef HAS_TEST_AND_SET */
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/* #undef HAS_TEST_AND_SET */
1424
#endif
1525
typedefunsignedcharslock_t;

‎src/include/storage/s_lock.h

Lines changed: 30 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
*
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*
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* IDENTIFICATION
10-
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.10 1997/10/03 15:27:18 momjian Exp $
10+
* $Header: /cvsroot/pgsql/src/include/storage/s_lock.h,v 1.11 1997/10/30 05:24:19 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
@@ -24,6 +24,10 @@
2424
*;
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*}
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*
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*In addition to modifying this file you will need to modify
28+
*the appropriate ...src/include/port/...h file to define
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*HAS_TEST_AND_SET for the appropriate circumstances.
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*
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*If this is not done, POSTGRES will default to using System V
2832
*semaphores (and take a large performance hit -- around 40% of
2933
*its time on a DS5000/240 is spent in semop(3)...).
@@ -228,6 +232,31 @@ tas_dummy()
228232

229233
#endif/* sun3 */
230234

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/*
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*M68000 ports under NetBSD.
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*
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*This version should also work on a sun3, but I can't test it.
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*Conversely the sun3 version should work under NetBSD/m68k, but
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*it doesn't.
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*/
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#if defined(__NetBSD__)&& defined(__m68k__)
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staticvoidS_LOCK(char*lock)
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{
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asm("
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movela6@(8),a0
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LOOP:
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tasa0@
250+
bmiLOOP
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");
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}
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#defineS_UNLOCK(lock)(*(lock) = 0)
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#defineS_INIT_LOCK(lock)S_UNLOCK(lock)
257+
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#endif/* M68000 && NetBSD */
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/*
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* sparc machines
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*/

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