Tidy up claimed supported CPUs and OSes.

* Remove arbitrary mention of certain endianness and bitness variants;
   it's enough to say that applicable variants are expected to work.
 * List RISC-V (known to work, being tested).
 * List SuperH and M88K (code exists, unknown status, like M68K).
 * De-list VAX and remove code (known not to work).
 * Remove stray trace of Alpha (support was removed years ago).
 * List illumos, DragonFlyBSD (known to work, being tested).
 * No need to single Windows out by listing a specific version, when we
   don't do that for other OSes; it's enough to say that we support
   current versions of the listed OSes (when 16 ships, that'll be
   Windows 10+).

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Greg Stark <stark@mit.edu>
Discussion: https://postgr.es/m/CA%2BhUKGKk7NZO1UnJM0PyixcZPpCGqjBXW_0bzFZpJBGAf84XKg%40mail.gmail.com
This commit is contained in:
Thomas Munro 2022-07-11 11:50:41 +12:00
parent 21267b6477
commit 92d70b77eb
3 changed files with 8 additions and 37 deletions

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@ -41,7 +41,7 @@
#ifdef __i386__
#define BF_ASM 0 /* 1 */
#define BF_SCALE 1
#elif defined(__x86_64__) || defined(__alpha__) || defined(__hppa__)
#elif defined(__x86_64__) || defined(__hppa__)
#define BF_ASM 0
#define BF_SCALE 1
#else

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@ -2125,18 +2125,19 @@ export MANPATH
<para>
In general, <productname>PostgreSQL</productname> can be expected to work on
these CPU architectures: x86, x86_64, PowerPC,
PowerPC 64, S/390, S/390x, Sparc, Sparc 64, ARM, MIPS, MIPSEL,
and PA-RISC. Code support exists for M68K, M32R, and VAX, but these
these CPU architectures: x86, PowerPC, S/390, Sparc, ARM, MIPS, RISC-V,
and PA-RISC, including
big-endian, little-endian, 32-bit, and 64-bit variants where applicable.
Code support exists for M68K, M88K, M32R, and SuperH, but these
architectures are not known to have been tested recently. It is often
possible to build on an unsupported CPU type by configuring with
<option>--disable-spinlocks</option>, but performance will be poor.
</para>
<para>
<productname>PostgreSQL</productname> can be expected to work on these operating
systems: Linux (all recent distributions), Windows (10 and later),
FreeBSD, OpenBSD, NetBSD, macOS, AIX, and Solaris.
<productname>PostgreSQL</productname> can be expected to work on current
versions of these operating systems: Linux, Windows,
FreeBSD, OpenBSD, NetBSD, DragonFlyBSD, macOS, AIX, Solaris, and illumos.
Other Unix-like systems may also work but are not currently
being tested. In most cases, all CPU architectures supported by
a given operating system will work. Look in

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@ -548,36 +548,6 @@ tas(volatile slock_t *lock)
#endif /* __m88k__ */
/*
* VAXen -- even multiprocessor ones
* (thanks to Tom Ivar Helbekkmo)
*/
#if defined(__vax__)
#define HAS_TEST_AND_SET
typedef unsigned char slock_t;
#define TAS(lock) tas(lock)
static __inline__ int
tas(volatile slock_t *lock)
{
register int _res;
__asm__ __volatile__(
" movl $1, %0 \n"
" bbssi $0, (%2), 1f \n"
" clrl %0 \n"
"1: \n"
: "=&r"(_res), "+m"(*lock)
: "r"(lock)
: "memory");
return _res;
}
#endif /* __vax__ */
#if defined(__mips__) && !defined(__sgi) /* non-SGI MIPS */
#define HAS_TEST_AND_SET