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Remove spinlock support for SINIX, Sun3, and NS32K.

All of these platforms are very much obsolete.As far as I can determine, the last version of SINIX, later renamedReliant, occurred some time between 2002 and 2005.The last release of SunOS that would run on a sun3 was released inNovember of 1991; the last release of OpenBSD which supported thatplatform was in 2001. The highest clock speed of any processor inthe family was 25MHz.The NS32K (national semiconductor 320xx) architecture was retiredin 1990.Support can be re-added if a maintainer emerges for any of theseplatforms, but it seems unlikely.Reviewed by Andres Freund.

1 parentbbe4dea commit81051a8Copy full SHA for 81051a8

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3 files changed

-83

lines changed

doc/src/sgml
- installation.sgml
src
- backend/storage/lmgr
  - s_lock.c
- include/storage
  - s_lock.h

3 files changed

-83

lines changed

`‎doc/src/sgml/installation.sgml`

Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
@@ -1953,7 +1953,7 @@ kill `cat /usr/local/pgsql/data/postmaster.pid`
`1953`	`1953`	`In general, <productname>PostgreSQL</> can be expected to work on`
`1954`	`1954`	`these CPU architectures: x86, x86_64, IA64, PowerPC,`
`1955`	`1955`	`PowerPC 64, S/390, S/390x, Sparc, Sparc 64, Alpha, ARM, MIPS, MIPSEL, M68K,`
`1956`		`- and PA-RISC. Code support exists for M32R, NS32K, and VAX, but these`
	`1956`	`+ and PA-RISC. Code support exists for M32R and VAX, but these`
`1957`	`1957`	`architectures are not known to have been tested recently. It is often`
`1958`	`1958`	`possible to build on an unsupported CPU type by configuring with`
`1959`	`1959`	`<option>--disable-spinlocks</option>, but performance will be poor.`

`‎src/backend/storage/lmgr/s_lock.c`

Lines changed: 0 additions & 30 deletions

Original file line number	Diff line number	Diff line change
`@@ -247,36 +247,6 @@ _success:\n\`
`247`	`247`	`);`
`248`	`248`	`}`
`249`	`249`	`#endif/* __m68k__ && !__linux__ */`
`250`		`-#else/* not __GNUC__ */`
`251`		`-`
`252`		`-/*`
`253`		`- * All non gcc`
`254`		`- */`
`255`		`-`
`256`		`-`
`257`		`-#if defined(sun3)`
`258`		`-staticvoid`
`259`		`-tas_dummy()/* really means: extern int tas(slock_t`
`260`		`- * lock); /`
`261`		`-{`
`262`		`-asm("LLA0:");`
`263`		`-asm(" .data");`
`264`		`-asm(" .text");`
`265`		`-asm("\|#PROC# 04");`
`266`		`-asm(" .globl _tas");`
`267`		`-asm("_tas:");`
`268`		`-asm("\|#PROLOGUE# 1");`
`269`		`-asm(" movel sp@(0x4),a0");`
`270`		`-asm(" tas a0@");`
`271`		`-asm(" beq LLA1");`
`272`		`-asm(" moveq #-128,d0");`
`273`		`-asm(" rts");`
`274`		`-asm("LLA1:");`
`275`		`-asm(" moveq #0,d0");`
`276`		`-asm(" rts");`
`277`		`-asm(" .data");`
`278`		`-}`
`279`		`-#endif/* sun3 */`
`280`	`250`	`#endif/* not __GNUC__ */`
`281`	`251`	`#endif/* HAVE_SPINLOCKS */`
`282`	`252`

`‎src/include/storage/s_lock.h`

Lines changed: 0 additions & 52 deletions

Original file line number	Diff line number	Diff line change
`@@ -551,31 +551,6 @@ tas(volatile slock_t *lock)`
`551`	`551`
`552`	`552`	`#endif/* __vax__ */`
`553`	`553`
`554`		`-`
`555`		`-#if defined(__ns32k__)/* National Semiconductor 32K */`
`556`		`-#defineHAS_TEST_AND_SET`
`557`		`-`
`558`		`-typedefunsignedcharslock_t;`
`559`		`-`
`560`		`-#defineTAS(lock) tas(lock)`
`561`		`-`
`562`		`-static __inline__int`
`563`		`-tas(volatileslock_t*lock)`
`564`		`-{`
`565`		`-registerint_res;`
`566`		`-`
`567`		`-__asm__ __volatile__(`
`568`		`-"sbitb0, %1\n"`
`569`		`-"sfsd%0\n"`
`570`		`-:"=r"(_res),"+m"(*lock)`
`571`		`-:`
`572`		`-:"memory");`
`573`		`-return_res;`
`574`		`-}`
`575`		`-`
`576`		`-#endif/* __ns32k__ */`
`577`		`-`
`578`		`-`
`579`	`554`	`#if defined(__alpha)\|\| defined(__alpha__)/* Alpha */`
`580`	`555`	`/*`
`581`	`556`	`* Correct multi-processor locking methods are explained in section 5.5.3`
`@@ -886,25 +861,6 @@ typedef unsigned long slock_t;`
`886`	`861`	`#defineS_LOCK_FREE(lock)(test_then_add(lock,0) == 0)`
`887`	`862`	`#endif/* __sgi */`
`888`	`863`
`889`		`-`
`890`		`-#if defined(sinix)/* Sinix */`
`891`		`-/*`
`892`		`- * SINIX / Reliant UNIX`
`893`		`- * slock_t is defined as a struct abilock_t, which has a single unsigned long`
`894`		`- * member. (Basically same as SGI)`
`895`		`- */`
`896`		`-#defineHAS_TEST_AND_SET`
`897`		`-`
`898`		`-#include"abi_mutex.h"`
`899`		`-typedefabilock_tslock_t;`
`900`		`-`
`901`		`-#defineTAS(lock)(!acquire_lock(lock))`
`902`		`-#defineS_UNLOCK(lock)release_lock(lock)`
`903`		`-#defineS_INIT_LOCK(lock)init_lock(lock)`
`904`		`-#defineS_LOCK_FREE(lock)(stat_lock(lock) == UNLOCKED)`
`905`		`-#endif/* sinix */`
`906`		`-`
`907`		`-`
`908`	`864`	`#if defined(_AIX)/* AIX */`
`909`	`865`	`/*`
`910`	`866`	`* AIX (POWER)`
`@@ -922,14 +878,6 @@ typedef int slock_t;`
`922`	`878`
`923`	`879`	`/* These are in s_lock.c */`
`924`	`880`
`925`		`-`
`926`		`-#if defined(sun3)/* Sun3 */`
`927`		`-#defineHAS_TEST_AND_SET`
`928`		`-`
`929`		`-typedefunsignedcharslock_t;`
`930`		`-#endif`
`931`		`-`
`932`		`-`
`933`	`881`	`#if defined(__SUNPRO_C)&& (defined(__i386)\|\| defined(__x86_64__)\|\| defined(__sparc__)\|\| defined(__sparc))`
`934`	`882`	`#defineHAS_TEST_AND_SET`
`935`	`883`

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Commit81051a8

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3 files changed

3 files changed

`‎doc/src/sgml/installation.sgml`

`‎src/backend/storage/lmgr/s_lock.c`

`‎src/include/storage/s_lock.h`

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