url="https://github.com/fortanix/llvm-project/archive/${1}.tar.gz"
repo_name="llvm-project"
-install_prereq()
-{
+install_prereq() {
apt-get update
apt-get install -y --no-install-recommends \
build-essential \
git
}
-# Clone Fortanix's port of llvm-project to build libunwind that would link with this target.
-# The below method to download a single commit from llvm-project is based on fetch_submodule
-# from init_repo.sh
-fetch_llvm_commit()
-{
- cached="download-${repo_name}.tar.gz"
- curl -f -sSL -o ${cached} ${url}
- tar -xvzf ${cached}
- mkdir "./${repo_name}" && tar -xf ${cached} -C ${repo_name} --strip-components 1
-}
-
-build_unwind()
-{
+build_unwind() {
+ set -x
dir_name="${target}_temp"
- rm -rf "./${dir_name}"
+ rm -rf ${dir_name}
mkdir -p ${dir_name}
- cd ${dir_name}
+ pushd ${dir_name}
- retry fetch_llvm_commit
+ # Clone Fortanix's fork of llvm-project which has a port of libunwind
+ fetch_github_commit_archive "$repo_name" "$url"
cd "${repo_name}/libunwind"
# Build libunwind
mkdir -p build
cd build
- cmake -DCMAKE_BUILD_TYPE="RELEASE" -DRUST_SGX=1 -G "Unix Makefiles" -DLLVM_PATH=../../llvm/ ../
+ cmake -DCMAKE_BUILD_TYPE="RELEASE" -DRUST_SGX=1 -G "Unix Makefiles" \
+ -DLLVM_ENABLE_WARNINGS=1 -DLIBUNWIND_ENABLE_WERROR=1 -DLIBUNWIND_ENABLE_PEDANTIC=0 \
+ -DLLVM_PATH=../../llvm/ ../
make unwind_static
install -D "lib/libunwind.a" "/${target}/lib/libunwind.a"
+
+ popd
rm -rf ${dir_name}
+
+ { set +x; } 2>/dev/null
}
set -x
hide_output install_prereq
-hide_output build_unwind
+build_unwind