[Mesa-dev] Problem with RX 480 on Alien: Isolation and Dota 2

[Romain Failliot]

Thanks a lot! I'll try that tonight!

I have a 64-bit distrib, I don't think so but do I need to compile the 32-bit
version of llvm as well (is it because Steam is using 32-bit libraries?).

2016-09-13 13:53 GMT-04:00 Marek Olšák <maraeo at gmail.com>:
> LLVM 64-bit:
>
> mkdir -p build
> cd build
> cmake .. -G Ninja -DCMAKE_INSTALL_PREFIX=/usr/llvm/x86_64-linux-gnu
> -DLLVM_TARGETS_TO_BUILD="X86;AMDGPU" -DLLVM_ENABLE_ASSERTIONS=O
>                   -DCMAKE_BUILD_TYPE=RelWithDebInfo
> -DLLVM_BUILD_LLVM_DYLIB=ON -DLLVM_LINK_LLVM_DYLIB=ON \
>                   -DCMAKE_C_FLAGS_RELWITHDEBINFO="-O2 -g -DNDEBUG
> -fno-omit-frame-pointer" \
>                   -DCMAKE_CXX_FLAGS_RELWITHDEBINFO="-O2 -g -DNDEBUG
> -fno-omit-frame-pointer".
> ninja
> sudo ninja install
>
>
> LLVM 32-bit:
>
> mkdir -p build32
> cd build32
> cmake .. -G Ninja -DCMAKE_INSTALL_PREFIX=/usr/llvm/i386-linux-gnu
> -DLLVM_TARGETS_TO_BUILD="X86;AMDGPU" -DLLVM_ENABLE_ASSERTIONS=ON
>                   -DCMAKE_BUILD_TYPE=RelWithDebInfo
> -DLLVM_BUILD_LLVM_DYLIB=ON -DLLVM_LINK_LLVM_DYLIB=ON \
>                   -DCMAKE_C_FLAGS_RELWITHDEBINFO="-O2 -g -DNDEBUG
> -fno-omit-frame-pointer" \
>                   -DCMAKE_CXX_FLAGS_RELWITHDEBINFO="-O2 -g -DNDEBUG
> -fno-omit-frame-pointer" \
>                   -DLLVM_BUILD_32_BITS=ON
> ninja
> sudo ninja install
> # then add /usr/llvm/x86_64-linux-gnu and /usr/llvm/i386-linux-gnu to
> ld.conf
>
>
> Mesa configure helper script, it will overwrite the /usr/lib/ files on
> Ubuntu (run as-is for 64-bit, or use "-32" for 32-bit):
>
> if test x$1 = x-32; then
>     dir=i386-linux-gnu
>     build=i686-linux-gnu
>     export CFLAGS="-m32 -O2 -g"
>     export CXXFLAGS="$CFLAGS"
>     export LDFLAGS="-L/usr/lib/$dir"
>     export PKG_CONFIG_PATH="/usr/lib/$dir/pkgconfig"
> else
>     dir=x86_64-linux-gnu
>     build=$dir
> fi
>
> ./autogen.sh \
>  --build=$build --prefix=/usr --libdir=/usr/lib/$dir
> --with-llvm-prefix=/usr/llvm/$dir \
>  --enable-glx-tls --enable-texture-float --enable-debug --enable-vdpau \
>  --disable-xvmc --disable-va --enable-nine --with-sha1=libnettle \
>  --with-gallium-drivers=radeonsi,r600,swrast --with-dri-drivers= \
>  --with-egl-platforms=x11,drm --enable-gles1 --enable-gles2
>
> make -j4
> sudo make install
>
> You'll probably want to delete /usr/lib/$dir/*mesa*/*. That's Ubuntu's
> invention that will prevent you from using installed libGL and libEGL.
>
> It's all kind of a mess, but I don't know of a better way.
>
> Marek
>
>
>
> On Tue, Sep 13, 2016 at 7:33 PM, Romain Failliot
> <romain.failliot at foolstep.com> wrote:
>> 2016-09-13 12:41 GMT-04:00 Marek Olšák <maraeo at gmail.com>:
>>>
>>> BTW, If you update LLVM to a newer version, you also have to re-build
>>> Mesa, because the LLVM version used by Mesa is determined while Mesa
>>> is being built.
>>>
>>> Also, the chance to rage-quit while building LLVM+Mesa is pretty high
>>> if you've never done it before.
>>
>> I see, is there a tutorial somewhere maybe on how to do that?
>> I know how to compile projects, that's not a problem. It's more about the
>> little details to make everything work once it's compiled.
>