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Remove HP-UX port.

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HP-UX hardware is no longer produced, build farm coverage recently
ended, and there are no known active maintainers targeting this OS.
Since there is a major rewrite of the build system in the pipeline for
PostgreSQL 16, and that requires development, testing and maintainance
for each OS and tool chain, it seems like a good time to drop support
for:

 * HP-UX, the operating system.
 * HP aCC, the HP-UX native compiler.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Discussion: https://postgr.es/m/1415825.1656893299%40sss.pgh.pa.us
This commit is contained in:
Thomas Munro
2022-07-08 11:17:47 +12:00
parent 3c633f32b9
commit 9db300ce6e
28 changed files with 82 additions and 645 deletions
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40
src/backend/port/hpux/tas.c.template
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@@ -1,40 +0,0 @@
/*
* tas() for HPPA.
*
* To generate tas.s using this template:
* 1. cc +O2 -S -c tas.c
* 2. edit tas.s:
* - replace the LDW with LDCWX
* 3. install as src/backend/port/tas/hpux_hppa.s.
*
* For details about the LDCWX instruction, see the "Precision
* Architecture and Instruction Reference Manual" (09740-90014 of June
* 1987), p. 5-38.
*/
int
tas(lock)
int *lock; /* LDCWX is a word instruction */
{
/*
* LDCWX requires that we align the "semaphore" to a 16-byte
* boundary. The actual datum is a single word (4 bytes).
*/
lock = ((uintptr_t) lock + 15) & ~15;
/*
* The LDCWX instruction atomically clears the target word and
* returns the previous value. Hence, if the instruction returns
* 0, someone else has already acquired the lock before we tested
* it (i.e., we have failed).
*
* Notice that this means that we actually clear the word to set
* the lock and set the word to clear the lock. This is the
* opposite behavior from the SPARC LDSTUB instruction. For some
* reason everything that H-P does is rather baroque...
*/
if (*lock) { /* this generates the LDW */
return(0); /* success */
}
return(1); /* failure */
}

28
src/backend/port/tas/hpux_hppa.s
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@@ -1,28 +0,0 @@
.SPACE $TEXT$,SORT=8
.SUBSPA $CODE$,QUAD=0,ALIGN=4,ACCESS=44,CODE_ONLY,SORT=24
tas
.PROC
.CALLINFO CALLER,FRAME=0,ENTRY_SR=3
.ENTRY
LDO 15(%r26),%r31 ;offset 0x0
DEPI 0,31,4,%r31 ;offset 0x4
LDCWX 0(0,%r31),%r23 ;offset 0x8
COMICLR,= 0,%r23,%r0 ;offset 0xc
DEP,TR %r0,31,32,%r28 ;offset 0x10
$00000001
LDI 1,%r28 ;offset 0x14
$L0
.EXIT
BV,N %r0(%r2) ;offset 0x18
.PROCEND ;in=26;out=28;
.SPACE $TEXT$
.SUBSPA $CODE$
.SPACE $PRIVATE$,SORT=16
.SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31,SORT=16
.SPACE $TEXT$
.SUBSPA $CODE$
.EXPORT tas,ENTRY,PRIV_LEV=3,ARGW0=GR,RTNVAL=GR
.END