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Using ARM's OpenMAX DL with GNU compiler

Note: This was originally posted on 27th October 2010 at http://forums.arm.com

Hello,

I have a project in XCode with the target having an ARM11 processor. I would like a faster FFT, so wanted to check out ARM's OpenMAX DL implementation. When I try building with the source files included, I am getting bad instruction errors in all of the .s files. I have been doing some research and people have suggested that there is a different syntax between the ARM RVCT, used to create these .s files, and GNU compliers, which I am using in XCode. Could this be causing these errors? If so, are there any resources on the differnces between the two compilers?

Thanks!
Jamie

Bhaveet Shah over 12 years ago

Note: This was originally posted on 28th October 2010 at http://forums.arm.com

Hello,

I have a project in XCode with the target having an ARM11 processor. I would like a faster FFT, so wanted to check out ARM's OpenMAX DL implementation. When I try building with the source files included, I am getting bad instruction errors in all of the .s files. I have been doing some research and people have suggested that there is a different syntax between the ARM RVCT, used to create these .s files, and GNU compliers, which I am using in XCode. Could this be causing these errors? If so, are there any resources on the differnces between the two compilers?

Thanks!
Jamie

The following might be a good starting point for understanding the GNU assembler syntax:
[url="http://microcross.com/GNU-ARM-Assy-Quick-Ref.pdf"]http://microcross.com/GNU-ARM-Assy-Quick-Ref.pdf[/url]

The following would be a good starting point for understanding the ARM assembler syntax:
[url="http://infocenter.arm.com/help/topic/com.arm.doc.dui0473b/index.html"]http://infocenter.arm.com/help/topic/com.a...473b/index.html[/url]

I understand there are a few scripts out there that can help translate from ARM to GAS. Search for ads2gas.pl and you should be able to find one, but note they aren't perfect and you will probably need to check and alter the resulting source file.
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joan joan over 12 years ago

Note: This was originally posted on 30th March 2011 at http://forums.arm.com

Hello
Where can I download de Openmax DL library source code, please?

Thanks
Joan
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Alban Rampon over 12 years ago

Note: This was originally posted on 30th March 2011 at http://forums.arm.com

Hi Joan,
Have you tried Khronos website?
http://www.khronos.org/openmax/
Their links to examples though are broken...
HTH, Alban
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Alban Rampon over 12 years ago

Note: This was originally posted on 30th March 2011 at http://forums.arm.com

Hi Jamie,
OpenMAX DL sample code (Ver 1.0.2) is where the ARM examples are.
Hopefully you can have access...
Alban
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www.rzr.online.fr rzr over 12 years ago

Note: This was originally posted on 21st July 2011 at http://forums.arm.com

I am wondering if there is a wrapper to gcc that translate armcc flags ie ARM7TDMI to -mcpu=arm7tdmi ...

ie the opposite of :
http://infocenter.ar...c/CHDDJHCH.html

Is there a free compiler to build OX000-BU-00010-r1p0-00bet0.tgz ?

Edit:

.s files are not supported by gcc yet :

http://forums.arm.co...6579#entry36579

and linking the armcc lib w/ ld is not working on that platform :

http://www.anddev.org/ndk-problems-f56/crash-ld-terminated-with-signal-11-t54593.html

But, I managed to build C files using gcc ..

If someone care I may to publish a debian patch, am i granted to distribute a copy to OX000-BU-00010-r1p0-00bet0.tgz ?

Also a COPYING file would be welcome for upcoming releases...
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Using ARM&#39;s OpenMAX DL with GNU compiler

Using ARM's OpenMAX DL with GNU compiler