Re: [dpdk-dev] [PATCH v2 2/3] ci: add aarch64 clang cross-compilation builds

["Juraj Linkeš" <juraj.linkes@pantheon.tech>]

> -----Original Message-----
> From: Aaron Conole <aconole@redhat.com>
> Sent: Thursday, October 1, 2020 3:32 PM
> To: Juraj Linkeš <juraj.linkes@pantheon.tech>
> Cc: thomas@monjalon.net; david.marchand@redhat.com;
> maicolgabriel@hotmail.com; dev@dpdk.org
> Subject: Re: [PATCH v2 2/3] ci: add aarch64 clang cross-compilation builds
> 
> Juraj Linkeš <juraj.linkes@pantheon.tech> writes:
> 
> > Mirror the existing gcc jobs - build static and shared libs.
> > Use arm64_armv8_linux_clang_ubuntu1804 meson cross file.
> >
> > Signed-off-by: Juraj Linkeš <juraj.linkes@pantheon.tech>
> > ---
> >  .ci/linux-build.sh |  9 +++++++--
> >  .travis.yml        | 22 ++++++++++++++++++++--
> >  2 files changed, 27 insertions(+), 4 deletions(-)
> >
> > diff --git a/.ci/linux-build.sh b/.ci/linux-build.sh index
> > d079801d7..137f51e91 100755
> > --- a/.ci/linux-build.sh
> > +++ b/.ci/linux-build.sh
> > @@ -28,11 +28,16 @@ install_libabigail() {
> >      rm ${version}.tar.gz
> >  }
> >
> > -if [ "$AARCH64" = "1" ]; then
> > +if [ "$AARCH64_GCC" = "1" ]; then
> 
> Why do we need to do this?
> 
> CC_FOR_BUILD and CC should be either 'gcc' or 'clang' - so we could just key off
> of those instead of having to do this new set of variables, yes?
> 

I didn't think of these variables. I'll make use of them, that's better, thanks.

> >      # convert the arch specifier
> >      OPTS="$OPTS --cross-file config/arm/arm64_armv8_linux_gcc"
> >  fi
> >
> > +if [ "$AARCH64_CLANG" = "1" ]; then
> > +    # convert the arch specifier
> > +    OPTS="$OPTS --cross-file
> config/arm/arm64_armv8_linux_clang_ubuntu1804"
> > +fi
> > +
> >  if [ "$BUILD_DOCS" = "1" ]; then
> >      OPTS="$OPTS -Denable_docs=true"
> >  fi
> > @@ -53,7 +58,7 @@ OPTS="$OPTS --buildtype=debugoptimized"
> >  meson build --werror $OPTS
> >  ninja -C build
> >
> > -if [ "$AARCH64" != "1" ]; then
> > +if [ "$AARCH64_GCC" != "1" ] && [ "$AARCH64_CLANG" != 1 ]; then
> >      devtools/test-null.sh
> >  fi
> >
> > diff --git a/.travis.yml b/.travis.yml index d6eeab371..1f769d823
> > 100644
> > --- a/.travis.yml
> > +++ b/.travis.yml
> > @@ -18,6 +18,10 @@ _aarch64_packages: &aarch64_packages
> >    - *required_packages
> >    - [gcc-aarch64-linux-gnu, libc6-dev-arm64-cross,
> > pkg-config-aarch64-linux-gnu]
> >
> > +_aarch64_clang_packages: &aarch64_clang_packages
> > +  - *required_packages
> > +  - [libgcc-8-dev-arm64-cross, libatomic1-arm64-cross,
> > +libc6-dev-arm64-cross, pkg-config-aarch64-linux-gnu]
> > +
> >  _build_32b_packages: &build_32b_packages
> >    - *required_packages
> >    - [gcc-multilib]
> > @@ -69,20 +73,34 @@ jobs:
> >          packages:
> >            - *build_32b_packages
> >    # x86_64 cross-compiling aarch64 jobs
> > -  - env: DEF_LIB="static" AARCH64=1
> > +  - env: DEF_LIB="static" AARCH64_GCC=1
> >      arch: amd64
> >      compiler: gcc
> >      addons:
> >        apt:
> >          packages:
> >            - *aarch64_packages
> > -  - env: DEF_LIB="shared" AARCH64=1
> > +  - env: DEF_LIB="shared" AARCH64_GCC=1
> >      arch: amd64
> >      compiler: gcc
> >      addons:
> >        apt:
> >          packages:
> >            - *aarch64_packages
> > +  - env: DEF_LIB="static" AARCH64_CLANG=1
> > +    arch: amd64
> > +    compiler: clang
> > +    addons:
> > +      apt:
> > +        packages:
> > +          - *aarch64_clang_packages
> > +  - env: DEF_LIB="shared" AARCH64_CLANG=1
> > +    arch: amd64
> > +    compiler: clang
> > +    addons:
> > +      apt:
> > +        packages:
> > +          - *aarch64_clang_packages
> >    # aarch64 gcc jobs
> >    - env: DEF_LIB="static"
> >      arch: arm64
>