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Re: Sun inline assembler ...

From: Michael Fuhr <mike(at)fuhr(dot)org>
To: Hans-Jürgen Schönig <postgres(at)cybertec(dot)at>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: Sun inline assembler ...
Date: 2005-07-07 15:08:36
Message-ID: 20050707150836.GA62520@winnie.fuhr.org (view raw or flat)
Thread:
Lists: pgsql-bugs
On Thu, Jul 07, 2005 at 04:53:16PM +0200, Hans-Jürgen Schönig wrote:
> I have some minor troubles when using the Sun Compiler 9 on Solaris 9.
> The spinlock assembler code is somehow broken for Solaris 9 and Solaris 
> 10 (it works for Sun CC 8).
> 
> The following patch fixes this:
> 
> [hs(at)localhost postgresql-8.0.1]$ cd src/backend/storage/lmgr/
> [hs(at)localhost lmgr]$ diff s_lock.c /tmp/fixed_s_lock.c
> 248,249c248,249
> <       asm(".section \"data\"");
> <       asm(".section \"text\"");
> ---
> >       asm(".seg \"data\"");
> >       asm(".seg \"text\"");

There's already an #ifdef around that code -- is it not matching
correctly for your compiler?  Here's what I see in REL8_0_STABLE
and in HEAD (s_lock.c 1.35):

244 #ifdef SUNOS4_CC
245     asm(".seg \"data\"");
246     asm(".seg \"text\"");
247 #else
248     asm(".section \"data\"");
249     asm(".section \"text\"");
250 #endif

This looks like the thread that led to the above code:

http://archives.postgresql.org/pgsql-patches/2004-12/msg00213.php

-- 
Michael Fuhr
http://www.fuhr.org/~mfuhr/

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Subject: Re: BUG #1756: PQexec eats huge amounts of memory
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