Re: problem with "undefined instruction"

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Santosh Shilimkar <santosh.shilimkar@xxxxxx> writes:

> On 4/30/2011 10:14 PM, Måns Rullgård wrote:
>> Sebastian Reichel<sre@xxxxxxxxxx>  writes:
>>
>
> [..]
>
>>>
>>>     32ecc:   9cd0        ldr r4, [sp, #832]  ; 0x340
>>>     32ece:   fffe e92d   vtbl.8  d30, {d14-d15}, d29
>>>
>>> 00032ed0<_IO_vfprintf>:
>>>     32ed0:   e92d 4ff0   stmdb   sp!, {r4, r5, r6, r7, r8, r9, sl, fp, lr}
>>>     32ed4:   ed2d 8b02   vpush   {d8}
>>
>> Your userland appears to be built with Thumb2.  Make sure CONFIG_THUMB
>> is enabled in your kernel.
>>
> Oh yes. The config has CONFIG_ARM_THUMB=y but THUMB2 isn't enabled.

Sorry, I meant CONFIG_ARM_THUMB and that is indeed enabled.  Must be
something else.

> CONFIG_THUMB2_KERNEL=y should fix the problem.

No, that builds the kernel in Thumb2 mode and you probably don't want
that.

-- 
Måns Rullgård
mans@xxxxxxxxx

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