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# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=6
: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
# (needed due to CMAKE_BUILD_TYPE != Gentoo)
CMAKE_MIN_VERSION=3.7.0-r1
PYTHON_COMPAT=( python2_7 )
inherit check-reqs cmake-utils flag-o-matic git-r3 llvm python-any-r1
DESCRIPTION="Compiler runtime libraries for clang (sanitizers & xray)"
HOMEPAGE="https://llvm.org/"
SRC_URI=""
EGIT_REPO_URI="https://git.llvm.org/git/compiler-rt.git
https://github.com/llvm-mirror/compiler-rt.git"
LICENSE="|| ( UoI-NCSA MIT )"
# Note: this needs to be updated to match version of clang-9999
SLOT="6.0.0"
KEYWORDS=""
IUSE="test"
LLVM_SLOT=${SLOT%%.*}
# llvm-4 needed for --cmakedir
DEPEND="
>=sys-devel/llvm-4
test? (
app-portage/unsandbox
$(python_gen_any_dep "~dev-python/lit-${PV}[\${PYTHON_USEDEP}]")
=sys-devel/clang-${PV%_*}*:${LLVM_SLOT}
sys-libs/compiler-rt:${SLOT} )
${PYTHON_DEPS}"
# least intrusive of all
CMAKE_BUILD_TYPE=RelWithDebInfo
check_space() {
if use test; then
local CHECKREQS_DISK_BUILD=11G
check-reqs_pkg_pretend
fi
}
pkg_pretend() {
check_space
}
pkg_setup() {
check_space
llvm_pkg_setup
python-any-r1_pkg_setup
}
src_unpack() {
if use test; then
# needed for patched gtest
git-r3_fetch "https://git.llvm.org/git/llvm.git
https://github.com/llvm-mirror/llvm.git"
fi
git-r3_fetch
if use test; then
git-r3_checkout https://llvm.org/git/llvm.git \
"${WORKDIR}"/llvm '' utils/unittest
fi
git-r3_checkout
}
src_configure() {
# pre-set since we need to pass it to cmake
BUILD_DIR=${WORKDIR}/${P}_build
local mycmakeargs=(
-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${SLOT}"
# use a build dir structure consistent with install
# this makes it possible to easily deploy test-friendly clang
-DCOMPILER_RT_OUTPUT_DIR="${BUILD_DIR}/lib/clang/${SLOT}"
-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
# built-ins installed by sys-libs/compiler-rt
-DCOMPILER_RT_BUILD_BUILTINS=OFF
-DCOMPILER_RT_BUILD_LIBFUZZER=ON
-DCOMPILER_RT_BUILD_PROFILE=ON
-DCOMPILER_RT_BUILD_SANITIZERS=ON
-DCOMPILER_RT_BUILD_XRAY=ON
)
if use test; then
cat > "${T}"/unsandbox-lit.py <<-EOF || die
import os, sys
os.execlp("unsandbox", sys.argv[0], "lit", *sys.argv[1:])
EOF
mycmakeargs+=(
-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
-DLLVM_EXTERNAL_LIT="${T}/unsandbox-lit.py"
-DLLVM_LIT_ARGS="-vv"
# they are created during src_test()
-DCOMPILER_RT_TEST_COMPILER="${BUILD_DIR}/lib/llvm/${LLVM_SLOT}/bin/clang"
-DCOMPILER_RT_TEST_CXX_COMPILER="${BUILD_DIR}/lib/llvm/${LLVM_SLOT}/bin/clang++"
)
# same flags are passed for build & tests, so we need to strip
# them down to a subset supported by clang
CC=${EPREFIX}/usr/lib/llvm/${LLVM_SLOT}/bin/clang \
CXX=${EPREFIX}/usr/lib/llvm/${LLVM_SLOT}/bin/clang++ \
strip-unsupported-flags
fi
cmake-utils_src_configure
if use test; then
local sys_dir=( "${EPREFIX}"/usr/lib/clang/${SLOT}/lib/* )
[[ -e ${sys_dir} ]] || die "Unable to find ${sys_dir}"
[[ ${#sys_dir[@]} -eq 1 ]] || die "Non-deterministic compiler-rt install: ${sys_dir[*]}"
# copy clang over since resource_dir is located relatively to binary
# therefore, we can put our new libraries in it
mkdir -p "${BUILD_DIR}"/lib/{llvm/${LLVM_SLOT}/{bin,$(get_libdir)},clang/${SLOT}/include} || die
cp "${EPREFIX}"/usr/lib/llvm/${LLVM_SLOT}/bin/clang{,++} \
"${BUILD_DIR}"/lib/llvm/${LLVM_SLOT}/bin/ || die
cp "${EPREFIX}"/usr/lib/clang/${SLOT}/include/*.h \
"${BUILD_DIR}"/lib/clang/${SLOT}/include/ || die
cp "${sys_dir}"/*builtins*.a \
"${BUILD_DIR}/lib/clang/${SLOT}/lib/${sys_dir##*/}/" || die
# we also need LLVMgold.so for gold-based tests
if [[ -f ${EPREFIX}/usr/lib/llvm/${LLVM_SLOT}/$(get_libdir)/LLVMgold.so ]]; then
ln -s "${EPREFIX}"/usr/lib/llvm/${LLVM_SLOT}/$(get_libdir)/LLVMgold.so \
"${BUILD_DIR}"/lib/llvm/${LLVM_SLOT}/$(get_libdir)/ || die
fi
fi
}
src_test() {
# respect TMPDIR!
local -x LIT_PRESERVES_TMP=1
cmake-utils_src_make check-all
}
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