Re: Detection of hadware feature => please do not use signal

Bastien Roucariès <rouca@debian.org>

From: Bastien Roucariès <rouca@debian.org>
To: Tom Lane <tgl@sss.pgh.pa.us>, Thomas Munro <thomas.munro@gmail.com>
Cc: Heikki Linnakangas <hlinnaka@iki.fi>, pgsql-bugs@lists.postgresql.org
Date: 2024-11-07T15:51:46Z
Lists: pgsql-bugs
Le jeudi 7 novembre 2024, 00:01:58 UTC Thomas Munro a écrit :
> It doesn't look like I need to include <asm/hwcap.h> from Bastien's
> original message, because <sys/auxv.h> pulls in <bits/hwcap.h>
Not on arm32 unfortunatly.... and it is a HWCAP2_flags

Bastien

Commits

  1. Update configure probes for CFLAGS needed for ARM CRC instructions.

  2. Support runtime CRC feature probing on NetBSD/ARM using sysctl().

  3. Use auxv to check for CRC32 instructions on ARM.

  4. Improve our method for probing the availability of ARM CRC instructions.