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Re: GCC 4.9.1 Status Report (2014-07-10)


On 7/10/2014 5:14 PM, pinskia@gmail.com wrote:
>
>> On Jul 10, 2014, at 3:13 PM, Ian Lance Taylor <iant@google.com> wrote:
>>
>>> On Thu, Jul 10, 2014 at 11:40 AM, Franzi Edo. <edo.franzi@ukos.ch> wrote:
>>>
>>> As for the version 4.9.0, on OSX stil remain a problem.
>>> I cannot build an ARM a cross compiler!
>>> Here is the message (same as for the 4.9.0)
>>>
>>> ...
>>> .../Packages/gcc-4.9.1/gcc/config/arm/neon.md:3486:10917: fatal error:
>>>      bracket nesting level exceeded maximum of 256
>>> .../Packages/gcc-4.9.1/gcc/config/arm/neon.md:3486:10917: note: use
>>>      -fbracket-depth=N to increase maximum nesting level
>>> 32 warnings and 1 error generated.
>>> make[1]: *** [insn-attrtab.o] Error 1
>> You did not include enough context to be sure, but I don't think that
>> error message is coming from GCC.  At least, I don't see that error
>> message in the GCC sources.
>>
>> I think that error message is coming from the host compiler you are
>> using, in which case, based on the error message, the solution would
>> seem to be
>>    make CFLAGS="-g -O2 -fbracket-depth=512"
> Also i thought we did not support cross building with anything besides gcc. 
The RTEMS community sees this when using clang/llvm on FreeBSD.

Franzi.. did the suggestion from Chris Johns to increase the limit
to 1024, not work?

https://gcc.gnu.org/ml/gcc/2014-05/msg00018.html

This ended up being reported at http://llvm.org/bugs/show_bug.cgi?id=19650

--joel
> Thanks,
> Andrew
>
>> Ian

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill@OARcorp.com        On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
Support Available                (256) 722-9985


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