Unaligned problem when porting rtems for arm

[Peng Fan]

arm-rtemseabi4.11-gcc ---  gcc version 4.7.2 20120920
I installed the rpm package.


2013/4/24 Sebastian Huber <sebastian.huber at embedded-brains.de>

> On 04/24/2013 03:32 PM, Peng Fan wrote:
>
>> The compiler options in make/custom/*.cfg file is:
>>
>> CPU_CFLAGS = -mstructure-size-boundary=32 -mcpu=arm1176jzf-s -mfpu=vfp
>> -float-abi=soft -DCPU_S3C6410
>> # optimize flag: typically -O2
>> CFLAGS_OPTIMIZE_V = -O2 -g
>>
>> I will try older gcc versions or remove the -O2 option.
>>
>
> Which GCC version do you use?
>
> Are you sure that you have a ARM1176JZF core?  This core has support for
> unaligned data access.  Is this enabled and supported in your hardware?
>
> In case you use (hopefully) the EABI based tool chain, then remove the
> -mstructure-size-boundary=32 and -mfpu=vfp.
>
>
> --
> Sebastian Huber, embedded brains GmbH
>
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>
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>
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