[PATCH] gcc3 compatibility and debugger support

[Kaoru Fukui]

Great Franz!

I could rebuild working kernel(2.4 devel) with gcc-3.0.2 pre

Thanks
Kaoru

From: Franz Sirl <Franz.Sirl-kernel at lauterbach.com>
To: linuxppc-commit at source.mvista.com, linuxppc-dev at lists.linuxppc.org
Subject: [PATCH] gcc3 compatibility and debugger support
Date: Thu, 6 Sep 2001 21:32:59 +0200

> Hi,
>
> this patch fixes up the RELOC macro (which relies on implentation defined
> things in C), so it's possible again to boot a gcc3 compiled kernel. The
> patch guards the problematic code with a NOP inline asm, preventing the
> problematic (but legal) gcc3 optimization.
> The second part makes sure that the current task ends up in a known memory
> location even for UP. This helps JTAG/BDM debuggers a lot (it's very
> expensive to stop CPU/peek CPU reg/restart CPU).
>
> The patch is against 2_4. In 2_4_devel the gcc3 workaround in prom.c can
be
> removed too.
>
> Franz.


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