Re: Multiple Simulators Link Failure on Head

Joel Sherrill
2015-03-23T14:32:56Z

On 03/22/2015 05:46 PM, Joel Sherrill wrote:
>
> On 3/22/2015 9:29 PM, Mike Frysinger wrote:
>> On 20 Mar 2015 13:13, Joel Sherrill wrote:
>>> This looks to be an issue with the "make -j8".
>>> I did it again with "-j8" and it failed. I did a simple "make clean all"
>>> in that directory and it failed again.
>>>
>>> I then changed my script to drop the -j8 and it built ok again.
>>>
>>> My suspicion is something in the dependencies isn't 100% right
>>> and there is a race condition. sim/common/cconfig.h is the same
>>> in a tree built with -j1 vs -j8.
>> when it fails, can you attach the full build log ?
>>
>> what gcc version are you using ? there might be some misbehavior with the usage
>> of extern inline. i think the code base expects gnu_inline semantics but just
>> uses "extern inline" directly. maybe try including -fgnu89-inline in your
>> CFLAGS and see if that helps ?
> I am not in good position to send build logs or try the alternative CFLAGS
> until another long build finishes.
>
> But the idea of the gcc version sounds promising. I am building with a gcc
> from near the head. The default version of C has changed to C11 and I
> know that has caused a few odd issues with RTEMS. Maybe this has
> impacted the the compilation of this method.
>
> $ gcc --version
> gcc (GCC) 5.0.0 20150211 (experimental)
>
>
> I will try the suggestions as soon as I can.
>
>
I can confirm that lm32 and other targets built with the native
Fedora compiler.

$ gcc --version
gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)

But failed with I switched to using the more recent native I
listed above.

I can provide a log if you want but that should be enough to
reproduce this.
>> -mike
> --joel