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Update ASM comments.
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@ -66,7 +66,7 @@
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* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.142 2005/10/11 20:41:32 tgl Exp $
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* $PostgreSQL: pgsql/src/include/storage/s_lock.h,v 1.143 2005/12/17 20:15:43 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -108,7 +108,7 @@
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*/
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#ifdef __i386__
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#ifdef __i386__ /* 32-bit i386 */
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#define HAS_TEST_AND_SET
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typedef unsigned char slock_t;
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@ -214,8 +214,7 @@ spin_delay(void)
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#endif /* __x86_64__ */
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#if defined(__ia64__) || defined(__ia64)
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/* Intel Itanium */
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#if defined(__ia64__) || defined(__ia64) /* Intel Itanium */
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#define HAS_TEST_AND_SET
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typedef unsigned int slock_t;
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@ -276,8 +275,8 @@ tas(volatile slock_t *lock)
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#endif /* __arm__ */
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#if defined(__s390__) || defined(__s390x__)
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/* S/390 and S/390x Linux (32- and 64-bit zSeries) */
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#if defined(__s390__) || defined(__s390x__)
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#define HAS_TEST_AND_SET
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typedef unsigned int slock_t;
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@ -300,7 +299,7 @@ tas(volatile slock_t *lock)
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#endif /* __s390__ || __s390x__ */
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#if defined(__sparc__)
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#if defined(__sparc__) /* Sparc */
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#define HAS_TEST_AND_SET
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typedef unsigned char slock_t;
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@ -323,6 +322,7 @@ tas(volatile slock_t *lock)
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#endif /* __sparc__ */
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/* PowerPC */
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#if defined(__ppc__) || defined(__powerpc__) || defined(__powerpc64__)
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#define HAS_TEST_AND_SET
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@ -366,7 +366,7 @@ tas(volatile slock_t *lock)
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/* PowerPC S_UNLOCK is almost standard but requires a "sync" instruction */
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#define S_UNLOCK(lock) \
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do \
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{\
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{ \
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__asm__ __volatile__ (" sync \n"); \
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*((volatile slock_t *) (lock)) = 0; \
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} while (0)
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@ -374,6 +374,7 @@ do \
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#endif /* powerpc */
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/* Linux Motorola 68k */
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#if (defined(__mc68000__) || defined(__m68k__)) && defined(__linux__)
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#define HAS_TEST_AND_SET
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@ -399,11 +400,11 @@ tas(volatile slock_t *lock)
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#endif /* (__mc68000__ || __m68k__) && __linux__ */
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#if defined(__vax__)
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/*
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* VAXen -- even multiprocessor ones
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* (thanks to Tom Ivar Helbekkmo)
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*/
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#if defined(__vax__)
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#define HAS_TEST_AND_SET
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typedef unsigned char slock_t;
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@ -429,7 +430,7 @@ tas(volatile slock_t *lock)
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#endif /* __vax__ */
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#if defined(__ns32k__)
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#if defined(__ns32k__) /* National Semiconductor 32K */
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#define HAS_TEST_AND_SET
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typedef unsigned char slock_t;
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@ -453,7 +454,7 @@ tas(volatile slock_t *lock)
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#endif /* __ns32k__ */
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#if defined(__alpha) || defined(__alpha__)
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#if defined(__alpha) || defined(__alpha__) /* Alpha */
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/*
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* Correct multi-processor locking methods are explained in section 5.5.3
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* of the Alpha AXP Architecture Handbook, which at this writing can be
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@ -499,7 +500,7 @@ do \
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#endif /* __alpha || __alpha__ */
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#if defined(__mips__) && !defined(__sgi)
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#if defined(__mips__) && !defined(__sgi) /* non-SGI MIPS */
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/* Note: on SGI we use the OS' mutex ABI, see below */
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/* Note: R10000 processors require a separate SYNC */
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#define HAS_TEST_AND_SET
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@ -553,7 +554,7 @@ do \
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/* These live in s_lock.c, but only for gcc */
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#if defined(__m68k__) && !defined(__linux__)
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#if defined(__m68k__) && !defined(__linux__) /* non-Linux Motorola 68k */
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#define HAS_TEST_AND_SET
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typedef unsigned char slock_t;
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