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Re: Problem downloading eCos
- To: "Lewin A.R.W. Edwards" <larwe at larwe dot com>
- Subject: Re: [ECOS] Problem downloading eCos
- From: Jonathan Larmour <jlarmour at redhat dot com>
- Date: Wed, 21 Mar 2001 16:13:53 +0000
- Cc: Daniel dot Andersson at combitechsystems dot com,ecos-discuss at sourceware dot cygnus dot com
- Organization: Red Hat UK Ltd.
- References: <4.3.2.7.2.20010321090511.024a1008@mail.larwe.com>
"Lewin A.R.W. Edwards" wrote:
>
> There are also some performance issues with eCos. Due to current gcc
> bug(s), it's not possible to compile eCos in Thumb mode. However, Thumb is
> _STRONGLY_ recommended on the AT91R40807 because of its 16-bit data path. I
> want to solve this issue (read: I want to work out how to un-break eCos
> when compiled in thumb mode).
Assuming this is the same problem I found (compilation fails with "byte or
halfword not valid for base register"), then work on this:
http://sources.redhat.com/ml/binutils/2001-02/threads.html#00059
If you can produce a small enough testcase for Richard he may be able to
help. This got pushed down my stack and I never got to it (I've been saying
that a lot recently I know).
Jifl
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