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Commitedadeb0

Browse files
committed
Remove support for HPPA (a/k/a PA-RISC) architecture.
This old CPU architecture hasn't been produced in decades, andwhatever instances might still survive are surely too underpoweredfor anyone to consider running Postgres on in production. We'dnonetheless continued to carry code support for it (largely at myinsistence), because its unique implementation of spinlocks seemedlike a good edge case for our spinlock infrastructure. However,our last buildfarm animal of this type was retired last year, andit seems quite unlikely that another will emerge. Without the abilityto run tests, the argument that this is useful test code fails tohold water. Furthermore, carrying code support for an untestablearchitecture has costs not to be ignored. So, remove HPPA-specificcode, in the same vein as commits718aa43 and92d70b7.Discussion:https://postgr.es/m/3351991.1697728588@sss.pgh.pa.us
1 parent7967d10 commitedadeb0

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8 files changed

+5
-107
lines changed

8 files changed

+5
-107
lines changed

‎contrib/pgcrypto/crypt-blowfish.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -41,7 +41,7 @@
4141
#ifdef__i386__
4242
#defineBF_ASM0/* 1 */
4343
#defineBF_SCALE1
44-
#elif defined(__x86_64__)|| defined(__hppa__)
44+
#elif defined(__x86_64__)
4545
#defineBF_ASM0
4646
#defineBF_SCALE1
4747
#else

‎doc/src/sgml/installation.sgml

Lines changed: 4 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3390,8 +3390,8 @@ export MANPATH
33903390

33913391
<para>
33923392
In general, <productname>PostgreSQL</productname> can be expected to work on
3393-
these CPU architectures: x86, PowerPC, S/390, SPARC, ARM, MIPS, RISC-V,
3394-
andPA-RISC, including
3393+
these CPU architectures: x86, PowerPC, S/390, SPARC, ARM, MIPS,
3394+
and RISC-V, including
33953395
big-endian, little-endian, 32-bit, and 64-bit variants where applicable.
33963396
It is often
33973397
possible to build on an unsupported CPU type by configuring with
@@ -3422,7 +3422,8 @@ export MANPATH
34223422
<para>
34233423
Historical versions of <productname>PostgreSQL</productname> or POSTGRES
34243424
also ran on CPU architectures including Alpha, Itanium, M32R, M68K,
3425-
M88K, NS32K, SuperH, and VAX, and operating systems including 4.3BSD, AIX, BEOS,
3425+
M88K, NS32K, PA-RISC, SuperH, and VAX,
3426+
and operating systems including 4.3BSD, AIX, BEOS,
34263427
BSD/OS, DG/UX, Dynix, HP-UX, IRIX, NeXTSTEP, QNX, SCO, SINIX, Sprite, SunOS,
34273428
Tru64 UNIX, and ULTRIX.
34283429
</para>

‎src/backend/storage/lmgr/s_lock.c

Lines changed: 0 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -116,12 +116,7 @@ s_lock(volatile slock_t *lock, const char *file, int line, const char *func)
116116
void
117117
s_unlock(volatileslock_t*lock)
118118
{
119-
#ifdefTAS_ACTIVE_WORD
120-
/* HP's PA-RISC */
121-
*TAS_ACTIVE_WORD(lock)=-1;
122-
#else
123119
*lock=0;
124-
#endif
125120
}
126121
#endif
127122

‎src/include/port/atomics.h

Lines changed: 0 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -69,8 +69,6 @@
6969
#include"port/atomics/arch-x86.h"
7070
#elif defined(__ppc__)|| defined(__powerpc__)|| defined(__ppc64__)|| defined(__powerpc64__)
7171
#include"port/atomics/arch-ppc.h"
72-
#elif defined(__hppa)|| defined(__hppa__)
73-
#include"port/atomics/arch-hppa.h"
7472
#endif
7573

7674
/*

‎src/include/port/atomics/arch-hppa.h

Lines changed: 0 additions & 17 deletions
This file was deleted.

‎src/include/port/atomics/fallback.h

Lines changed: 0 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -75,11 +75,7 @@ typedef struct pg_atomic_flag
7575
* be content with just one byte instead of 4, but that's not too much
7676
* waste.
7777
*/
78-
#if defined(__hppa)|| defined(__hppa__)/* HP PA-RISC, GCC and HP compilers */
79-
intsema[4];
80-
#else
8178
intsema;
82-
#endif
8379
volatileboolvalue;
8480
}pg_atomic_flag;
8581

@@ -93,11 +89,7 @@ typedef struct pg_atomic_flag
9389
typedefstructpg_atomic_uint32
9490
{
9591
/* Check pg_atomic_flag's definition above for an explanation */
96-
#if defined(__hppa)|| defined(__hppa__)/* HP PA-RISC */
97-
intsema[4];
98-
#else
9992
intsema;
100-
#endif
10193
volatileuint32value;
10294
}pg_atomic_uint32;
10395

@@ -111,11 +103,7 @@ typedef struct pg_atomic_uint32
111103
typedefstructpg_atomic_uint64
112104
{
113105
/* Check pg_atomic_flag's definition above for an explanation */
114-
#if defined(__hppa)|| defined(__hppa__)/* HP PA-RISC */
115-
intsema[4];
116-
#else
117106
intsema;
118-
#endif
119107
volatileuint64value;
120108
}pg_atomic_uint64;
121109

‎src/include/storage/s_lock.h

Lines changed: 0 additions & 65 deletions
Original file line numberDiff line numberDiff line change
@@ -526,71 +526,6 @@ do \
526526
#endif/* __mips__ && !__sgi */
527527

528528

529-
#if defined(__hppa)|| defined(__hppa__)/* HP PA-RISC */
530-
/*
531-
* HP's PA-RISC
532-
*
533-
* Because LDCWX requires a 16-byte-aligned address, we declare slock_t as a
534-
* 16-byte struct. The active word in the struct is whichever has the aligned
535-
* address; the other three words just sit at -1.
536-
*/
537-
#defineHAS_TEST_AND_SET
538-
539-
typedefstruct
540-
{
541-
intsema[4];
542-
}slock_t;
543-
544-
#defineTAS_ACTIVE_WORD(lock)((volatile int *) (((uintptr_t) (lock) + 15) & ~15))
545-
546-
static __inline__int
547-
tas(volatileslock_t*lock)
548-
{
549-
volatileint*lockword=TAS_ACTIVE_WORD(lock);
550-
intlockval;
551-
552-
/*
553-
* The LDCWX instruction atomically clears the target word and
554-
* returns the previous value. Hence, if the instruction returns
555-
* 0, someone else has already acquired the lock before we tested
556-
* it (i.e., we have failed).
557-
*
558-
* Notice that this means that we actually clear the word to set
559-
* the lock and set the word to clear the lock. This is the
560-
* opposite behavior from the SPARC LDSTUB instruction. For some
561-
* reason everything that H-P does is rather baroque...
562-
*
563-
* For details about the LDCWX instruction, see the "Precision
564-
* Architecture and Instruction Reference Manual" (09740-90014 of June
565-
* 1987), p. 5-38.
566-
*/
567-
__asm__ __volatile__(
568-
"ldcwx0(0,%2),%0\n"
569-
:"=r"(lockval),"+m"(*lockword)
570-
:"r"(lockword)
571-
:"memory");
572-
return (lockval==0);
573-
}
574-
575-
#defineS_UNLOCK(lock)\
576-
do { \
577-
__asm__ __volatile__("" : : : "memory"); \
578-
*TAS_ACTIVE_WORD(lock) = -1; \
579-
} while (0)
580-
581-
#defineS_INIT_LOCK(lock) \
582-
do { \
583-
volatile slock_t *lock_ = (lock); \
584-
lock_->sema[0] = -1; \
585-
lock_->sema[1] = -1; \
586-
lock_->sema[2] = -1; \
587-
lock_->sema[3] = -1; \
588-
} while (0)
589-
590-
#defineS_LOCK_FREE(lock)(*TAS_ACTIVE_WORD(lock) != 0)
591-
592-
#endif/* __hppa || __hppa__ */
593-
594529

595530
/*
596531
* If we have no platform-specific knowledge, but we found that the compiler

‎src/tools/pginclude/headerscheck

Lines changed: 0 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -107,12 +107,10 @@ do
107107
# Likewise, these files are platform-specific, and the one
108108
# relevant to our platform will be included by atomics.h.
109109
test"$f" = src/include/port/atomics/arch-arm.h&&continue
110-
test"$f" = src/include/port/atomics/arch-hppa.h&&continue
111110
test"$f" = src/include/port/atomics/arch-ppc.h&&continue
112111
test"$f" = src/include/port/atomics/arch-x86.h&&continue
113112
test"$f" = src/include/port/atomics/fallback.h&&continue
114113
test"$f" = src/include/port/atomics/generic.h&&continue
115-
test"$f" = src/include/port/atomics/generic-acc.h&&continue
116114
test"$f" = src/include/port/atomics/generic-gcc.h&&continue
117115
test"$f" = src/include/port/atomics/generic-msvc.h&&continue
118116
test"$f" = src/include/port/atomics/generic-sunpro.h&&continue

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