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|
#!/usr/bin/env bash
# Copyright (c) the JPEG XL Project Authors. All rights reserved.
#
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
set -eu
MYDIR=$(dirname $(realpath "$0"))
# Convenience flag to pass both CMAKE_C_FLAGS and CMAKE_CXX_FLAGS
CMAKE_FLAGS=${CMAKE_FLAGS:-}
CMAKE_C_FLAGS=${CMAKE_C_FLAGS:-${CMAKE_FLAGS}}
CMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS:-${CMAKE_FLAGS}}
CMAKE_EXE_LINKER_FLAGS=${CMAKE_EXE_LINKER_FLAGS:-}
CLANG_VERSION="${CLANG_VERSION:-}"
# Detect the clang version suffix and store it in CLANG_VERSION. For example,
# "6.0" for clang 6 or "7" for clang 7.
detect_clang_version() {
if [[ -n "${CLANG_VERSION}" ]]; then
return 0
fi
local clang_version=$("${CC:-clang}" --version | head -n1)
local llvm_tag
case "${clang_version}" in
"clang version 6."*)
CLANG_VERSION="6.0"
;;
"clang version 7."*)
CLANG_VERSION="7"
;;
"clang version 8."*)
CLANG_VERSION="8"
;;
"clang version 9."*)
CLANG_VERSION="9"
;;
*)
echo "Unknown clang version: ${clang_version}" >&2
return 1
esac
}
# Temporary files cleanup hooks.
CLEANUP_FILES=()
cleanup() {
if [[ ${#CLEANUP_FILES[@]} -ne 0 ]]; then
rm -fr "${CLEANUP_FILES[@]}"
fi
}
trap "{ set +x; } 2>/dev/null; cleanup" INT TERM EXIT
# Install libc++ libraries compiled with msan in the msan_prefix for the current
# compiler version.
cmd_msan_install() {
local tmpdir=$(mktemp -d)
CLEANUP_FILES+=("${tmpdir}")
# Detect the llvm to install:
export CC="${CC:-clang}"
export CXX="${CXX:-clang++}"
detect_clang_version
local llvm_tag
case "${CLANG_VERSION}" in
"6.0")
llvm_tag="llvmorg-6.0.1"
;;
"7")
llvm_tag="llvmorg-7.0.1"
;;
"8")
llvm_tag="llvmorg-8.0.0"
;;
*)
echo "Unknown clang version: ${clang_version}" >&2
return 1
esac
local llvm_targz="${tmpdir}/${llvm_tag}.tar.gz"
curl -L --show-error -o "${llvm_targz}" \
"https://github.com/llvm/llvm-project/archive/${llvm_tag}.tar.gz"
tar -C "${tmpdir}" -zxf "${llvm_targz}"
local llvm_root="${tmpdir}/llvm-project-${llvm_tag}"
local msan_prefix="${HOME}/.msan/${CLANG_VERSION}"
rm -rf "${msan_prefix}"
declare -A CMAKE_EXTRAS
CMAKE_EXTRAS[libcxx]="\
-DLIBCXX_CXX_ABI=libstdc++ \
-DLIBCXX_INSTALL_EXPERIMENTAL_LIBRARY=ON"
for project in libcxx; do
local proj_build="${tmpdir}/build-${project}"
local proj_dir="${llvm_root}/${project}"
mkdir -p "${proj_build}"
cmake -B"${proj_build}" -H"${proj_dir}" \
-G Ninja \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_USE_SANITIZER=Memory \
-DLLVM_PATH="${llvm_root}/llvm" \
-DLLVM_CONFIG_PATH="$(which llvm-config llvm-config-7 llvm-config-6.0 | \
head -n1)" \
-DCMAKE_CXX_FLAGS="${CMAKE_CXX_FLAGS}" \
-DCMAKE_C_FLAGS="${CMAKE_C_FLAGS}" \
-DCMAKE_EXE_LINKER_FLAGS="${CMAKE_EXE_LINKER_FLAGS}" \
-DCMAKE_INSTALL_PREFIX="${msan_prefix}" \
${CMAKE_EXTRAS[${project}]}
cmake --build "${proj_build}"
ninja -C "${proj_build}" install
done
}
main() {
set -x
for version in 6.0 7 8; do
if ! which "clang-${version}" >/dev/null; then
echo "Skipping msan install for clang version ${version}"
continue
fi
(
trap "{ set +x; } 2>/dev/null; cleanup" INT TERM EXIT
export CLANG_VERSION=${version}
export CC=clang-${version}
export CXX=clang++-${version}
cmd_msan_install
) &
done
wait
}
main "$@"
|
