Hi Laurent, On 19 April 2016 at 11:00, Laurent Thévenoux <laurent.theven...@ens-lyon.fr> wrote: > Dear Devs, > > I get the following error when I use gcc 4.9.4 with the -mcpu flag set with > a certain configuration of ‘feature/nofeature’, i.e.: > -mcpu=cortex-a57+fp+simd+nocrypto+nocrc will fail, but > -mcpu=cortex-a57+fp+nocrypto+simd+nocrc won’t, for example. > > Here the error I get with the former -mcpu flag: > > Assembler messages: > Error: unknown architectural extension `n' > Error: unrecognized option -mcpu=cortex-a57+fp+simd+n > > > Minimal test case: $gcc -march=armv8-a+fp+simd+nocrc+nocrypto > -mcpu=cortex-a57+fp+simd+nocrypto+nocrc -mtune=cortex-a57 helloworld.c. > > According to the gcc documentation > <https://gcc.gnu.org/onlinedocs/gcc-4.9.3/gcc/AArch64-Options.html#AArch64-Options> > the order seems to be irrelevant. I obtained the error with the linaro-gcc > 4.9.4 binary release, as well as a personal built from linaro sources > package. It also fails with gcc 4.9.2 on the 3.18.0-linaro-hikey debian > distribution. > > I also tried with (linaro) gcc 4.8.5, 5.1.1, 5.2.1, and 5.3.1 versions, and > it works well.
On which version of GCC 4.9.4 do you see that issue ? I can't reproduce with our latest 4.9.4 release (4.9-2016.02) which is available here: https://releases.linaro.org/components/toolchain/binaries/4.9-2016.02/aarch64-linux-gnu/ FYI, in GCC 5 this part of the code was highly refactored and enhanced. Cheers, Yvan > Do I have to open a bug report for this, or maybe, I just misunderstood > something, somewhere? > > Regards, > Laurent Thévenoux > > _______________________________________________ > linaro-dev mailing list > linaro-dev@lists.linaro.org > https://lists.linaro.org/mailman/listinfo/linaro-dev > _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org https://lists.linaro.org/mailman/listinfo/linaro-dev
