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Re: [PATCH] Do not use 'bx' on armv4
On Thu, Oct 1, 2009 at 11:19 AM, Phil Blundell <pb@reciva.com> wrote:
> On Thu, 2009-10-01 at 10:51 +0300, Kirill A. Shutemov wrote:
>> armv4 has no thumb support and instruction 'bx'. Use 'mov pc' instead if
>> __USE_BX__ is not defined.
>
> I'm not sure that this patch is the right way to solve the problem;
> interworking is mandatory for the EABI.
Where can I read about it?
>ÂYou would probably do better to
> just use the linker flag --fix-v4bx to patch those instructions during
> final link; I think recent gccs will do this automatically for
> -march=armv4.
This problem fixed in similar way at least at sysdeps/arm/dl-machine.h
and sysdeps/arm/dl-trampoline.S.