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Re: GCC/Arm-Cortex-M3 position independant code AND data

From: Ian Lance Taylor <iant at google dot com>
To: christophe dot lavarenne at free dot fr
Cc: gcc-help at gcc dot gnu dot org
Date: Tue, 18 Aug 2009 07:49:19 -0700
Subject: Re: GCC/Arm-Cortex-M3 position independant code AND data
References: <876145640.5815331250604355401.JavaMail.root@zimbra10-e2.priv.proxad.net>

christophe.lavarenne@free.fr writes:

> Can anybody here point me to places in GCC sources where the
> .text and .rodata section addressing modes are selected, and
> to documentation to read to contribute cleanly this modification?

config/arm/arm.c

http://gcc.gnu.org/onlinedocs/gccint/

Unfortunately making this change is probably harder than you think.
There is a bunch of code which deals with addressing mode issues.  Also
I would worry about whether the PC offsets will be in range.

Ian

References:
- GCC/Arm-Cortex-M3 position independant code AND data
  - From: christophe . lavarenne

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