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Re: Alignment of Lisp_Subr
From: |
Gaute B Strokkenes |
Subject: |
Re: Alignment of Lisp_Subr |
Date: |
Fri, 14 Nov 2003 06:23:53 +0100 |
User-agent: |
Gnus/5.1003 (Gnus v5.10.3) Emacs/21.3.50 (gnu/linux) |
On 13 nov 2003, address@hidden wrote:
> There may be issues with Lisp objects with tagbits at the bottom. I
> know XEmacs had some problems on recent glibc, which were never
> properly diagnosed. It's probable that this was due to excessive
> cleverness in optimizing space use of malloc blocks, but if you do
> run into weirdness (we were crashing) feel free to ping me and I'll
> dig up the thread.
Are you saying that glibc malloc does not return blocks that are
sufficiently aligned? My copy of the glibc manual says:
The block that `malloc' gives you is guaranteed to be aligned so
that it can hold any type of data. In the GNU system, the address
is always a multiple of eight on most systems, and a multiple of 16
on 64-bit systems.
--
Gaute Strokkenes http://www.srcf.ucam.org/~gs234/
Not enough people play SKEE-BALL.. They're always thinking about
COCAINE or and ALIEN BEINGS!!
Re: Alignment of Lisp_Subr, Richard Stallman, 2003/11/12