[oe] EABI pain and frustration!

[Khem Raj]

On Fri, Feb 5, 2010 at 4:29 AM, Detlef Vollmann <dv at vollmann.ch> wrote:
> On 02/03/10 15:03, pspreadborough at comcast.net wrote:
>>
>> My 2.6.29 kernel is built with the CodeSourcery
>> arm-2009q3-67-arm-none-linux-gnueabi compiler and has the EABI and
>> OABI_COMPAT config options enabled. Using this kernel I can boot my SA1110
>> iPaq into a OABI ramfs with no problems, however if I build a "HelloWorld"
>> executable with the same compiler and try and run it I get an "Illegal
>> Instruction" error. I build the test program using static linking, select
>> the correct machine type and tune options but to no avail, I always get the
>> illegal instruction.

You need gcc 4.4 to get EABI working on ARMv4 and there are additional patches
to gcc on top of gcc 4.4 see
gcc-armv4-pass-fix-v4bx-to-ld.patch for gcc in OE. So as Koen suggested earlier
if you try with OE compiler you might have better chance of getting it
to work as many
OE devs have tried it.
btw. are you passing march=armv4 to the compiler when doing the compile ?

>
> Just checking: are you sure this is an EABI/OABI problem and not a
> Thumb code problem?
>
>  Detlef
>
>
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