[cfarm-users] GCC 10.10.2 on POWER8

[Joseph Benden]

What about the gcc203 machine?

Linux gcc203 5.9.0-4-powerpc64 #1 SMP Debian 5.9.11-1 (2020-11-27) ppc64
jbenden at gcc203:~$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/powerpc64-linux-gnu/10/lto-wrapper
Target: powerpc64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 10.2.1-1'
--with-bugurl=file:///usr/share/doc/gcc-10/README.Bugs
--enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++ --prefix=/usr
--with-gcc-major-version-only --program-suffix=-10
--program-prefix=powerpc64-linux-gnu- --enable-shared
--enable-linker-build-id --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --libdir=/usr/lib
--enable-nls --enable-bootstrap --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-libquadmath --disable-libquadmath-support --enable-plugin
--enable-default-pie --with-system-zlib
--enable-libphobos-checking=release --with-target-system-zlib=auto
--enable-objc-gc=auto --enable-secureplt --disable-softfloat
--enable-targets=powerpc64-linux,powerpc-linux --enable-multiarch
--disable-werror --with-long-double-128 --enable-multilib
--enable-checking=release --build=powerpc64-linux-gnu
--host=powerpc64-linux-gnu --target=powerpc64-linux-gnu
--with-build-config=bootstrap-lto-lean --enable-link-mutex
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.2.1 20201207 (Debian 10.2.1-1)


On 12/21/20 1:43 PM, David Edelsohn via cfarm-users wrote:
> What does GCC 10.10.2 mean?  There is no GCC 10.10.2 release.  Do you
> mean GCC 10.2?
>
> There are no Power systems in the GNU Compile Farm running Debian,
> only CentOS and Fedora.
>
> GCC for PPC64LE defaults to Power8, so there should be no illegal
> instructions.  Is the Debian system running a correct version of the
> Linux kernel for Power8?  There could be some sort of an unaligned
> access or other special situation with a Power8 instruction that the
> Debian  kernel is not sufficiently recent or missing a patch to handle
> the fixup.
>
> Thanks, David
>
> On Mon, Dec 21, 2020 at 3:18 PM Jeffrey Walton via cfarm-users
> <cfarm-users at lists.tetaneutral.net> wrote:
>> Hi Everyone,
>>
>> We are trying to track down the cause of a SIGILL on POWER8 when the
>> GCC 10.10.2 compiler is being used. The problem surfaces on a Debian
>> build machine, but we don't have access to it.
>>
>> Does anyone know where to find GCC 10.10.2 on POWER8 on the Compile Farm?
>>
>> Jeff
>> _______________________________________________
>> cfarm-users mailing list
>> cfarm-users at lists.tetaneutral.net
>> https://lists.tetaneutral.net/listinfo/cfarm-users
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