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dizys/build_gcc_with_offload.sh

Last active November 25, 2022 05:38
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Build GCC 11 from source with offloading support.
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build_gcc_with_offload.sh
#!/bin/sh
#
# Build GCC with support for offloading to NVIDIA GPUs.
#
netid=$(whoami)
work_dir=/tmp/$netid/gcc-build
install_dir=/tmp/$netid/gcc
# Location of the installed CUDA toolkit
cuda=$CUDA_PATH
# Build assembler and linking tools
mkdir -p $work_dir
cd $work_dir
git clone https://github.com/MentorEmbedded/nvptx-tools
cd nvptx-tools
./configure \
--with-cuda-driver-include=$cuda/include \
--with-cuda-driver-lib=$cuda/lib64 \
--prefix=$install_dir
make || exit 1
make install || exit 1
cd ..
# Set up the GCC source tree
git clone git://sourceware.org/git/newlib-cygwin.git nvptx-newlib
git clone --branch releases/gcc-11 git://gcc.gnu.org/git/gcc.git gcc
cd gcc
contrib/download_prerequisites
ln -s ../nvptx-newlib/newlib newlib
cd ..
target=$(gcc/config.guess)
# Build nvptx GCC
mkdir build-nvptx-gcc
cd build-nvptx-gcc
../gcc/configure \
--target=nvptx-none --with-build-time-tools=$install_dir/nvptx-none/bin \
--enable-as-accelerator-for=$target \
--disable-sjlj-exceptions \
--enable-newlib-io-long-long \
--enable-languages="c,c++,fortran,lto" \
--prefix=$install_dir
make -j`nproc` || exit 1
make install || exit 1
cd ..
# Build host GCC
mkdir -p build-host-gcc
cd build-host-gcc
../gcc/configure \
--enable-offload-targets=nvptx-none \
--with-cuda-driver-include=$cuda/include \
--with-cuda-driver-lib=$cuda/lib64 \
--disable-bootstrap \
--disable-multilib \
--enable-languages="c,c++,fortran,lto" \
--prefix=$install_dir
make -j`nproc` || exit 1
make install || exit 1
rm -rf $work_dir
cd ..
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