[LLVMdev] building a llvm-arm-elf crosscompiler on OSX 10.5

Pazzo Da Legare pazzodalegare at gmail.com
Sat Jan 9 15:22:17 PST 2010

Dear Anton,

Thanks for your help!
I had a look to llvm (2.6) configure options but I couldn't find any
way to specify cpu type, fpu ecc..Could you please give me any
indication and/or example? I want to try llvm with Atmel's
AT91SAM7X256 (core is  ARM7TDMI )

Thank you again,


2010/1/9 Anton Korobeynikov <anton at korobeynikov.info>:
> Hello
>> But I got the followings errors:
>> /var/folders/7f/7fiRIEm-FruFfT7mGbk3uk+++TI/-Tmp-//ccDFjySd.s:
>> Assembler messages:
>> /var/folders/7f/7fiRIEm-FruFfT7mGbk3uk+++TI/-Tmp-//ccDFjySd.s:96:
> Correct. You haven't specified any ARM specific stuff during llvm-gcc
> conffigure (cpu type, fpu type, floating point abi, etc). This means
> that default will be used. LLVM defaults to something like ARMv5,
> binutils - to ARMv4. So, you just need to configure llvm-gcc properly.
> Keep in mind, that binutils for ARM are known to be buggy, you need to
> use binutils CVS snapshot (and even this is buggy - some bugs are not
> yet fixed there).
> --
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University

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