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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=6
: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
# (needed due to CMAKE_BUILD_TYPE != Gentoo)
CMAKE_MIN_VERSION=3.7.0-r1
PYTHON_COMPAT=( python2_7 )
inherit check-reqs cmake-utils flag-o-matic llvm \
multiprocessing python-any-r1
MY_P=compiler-rt-${PV/_/}.src
LLVM_P=llvm-${PV/_/}.src
DESCRIPTION="Compiler runtime libraries for clang (sanitizers & xray)"
HOMEPAGE="https://llvm.org/"
SRC_URI="https://github.com/llvm/llvm-project/releases/download/llvmorg-${PV}/${MY_P}.tar.xz
test? ( https://github.com/llvm/llvm-project/releases/download/llvmorg-${PV}/${LLVM_P}.tar.xz )"
LICENSE="|| ( UoI-NCSA MIT )"
SLOT="${PV%_*}"
KEYWORDS="amd64 arm arm64 ppc64 x86 ~amd64-linux ~ppc-macos ~x64-macos ~x86-macos"
IUSE="+clang +libfuzzer +profile +sanitize test +xray elibc_glibc"
# FIXME: libfuzzer does not enable all its necessary dependencies
REQUIRED_USE="libfuzzer? ( || ( sanitize xray ) )"
RESTRICT="!test? ( test ) !clang? ( test )"
CLANG_SLOT=${SLOT%%.*}
# llvm-6 for new lit options
DEPEND="
>=sys-devel/llvm-6
clang? ( sys-devel/clang )
elibc_glibc? ( net-libs/libtirpc )
test? (
!<sys-apps/sandbox-2.13
$(python_gen_any_dep ">=dev-python/lit-5[\${PYTHON_USEDEP}]")
=sys-devel/clang-${PV%_*}*:${CLANG_SLOT}
sys-libs/compiler-rt:${SLOT} )
${PYTHON_DEPS}"
S=${WORKDIR}/${MY_P}
# least intrusive of all
CMAKE_BUILD_TYPE=RelWithDebInfo
python_check_deps() {
use test || return 0
has_version "dev-python/lit[${PYTHON_USEDEP}]"
}
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() {
einfo "Unpacking ${MY_P}.tar.xz ..."
tar -xf "${DISTDIR}/${MY_P}.tar.xz" || die
if use test; then
einfo "Unpacking parts of ${LLVM_P}.tar.xz ..."
tar -xf "${DISTDIR}/${LLVM_P}.tar.xz" \
"${LLVM_P}"/utils/unittest || die
mv "${LLVM_P}" llvm || die
fi
}
src_prepare() {
cmake-utils_src_prepare
if use test; then
# remove tests that are (still) broken by new glibc
# https://bugs.llvm.org/show_bug.cgi?id=36065
if use elibc_glibc && has_version '>=sys-libs/glibc-2.25'; then
rm test/lsan/TestCases/Linux/fork_and_leak.cc || die
fi
fi
}
src_configure() {
# pre-set since we need to pass it to cmake
BUILD_DIR=${WORKDIR}/${P}_build
if use clang; then
local -x CC=${CHOST}-clang
local -x CXX=${CHOST}-clang++
strip-unsupported-flags
fi
local mycmakeargs=(
-DCOMPILER_RT_INSTALL_PATH="${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=$(usex libfuzzer)
-DCOMPILER_RT_BUILD_PROFILE=$(usex profile)
-DCOMPILER_RT_BUILD_SANITIZERS=$(usex sanitize)
-DCOMPILER_RT_BUILD_XRAY=$(usex xray)
)
if use test; then
mycmakeargs+=(
-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
-DLLVM_LIT_ARGS="-vv;-j;${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}"
# they are created during src_test()
-DCOMPILER_RT_TEST_COMPILER="${BUILD_DIR}/lib/llvm/${CLANG_SLOT}/bin/clang"
-DCOMPILER_RT_TEST_CXX_COMPILER="${BUILD_DIR}/lib/llvm/${CLANG_SLOT}/bin/clang++"
)
# same flags are passed for build & tests, so we need to strip
# them down to a subset supported by clang
CC=${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/bin/clang \
CXX=${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/bin/clang++ \
strip-unsupported-flags
fi
if use prefix && [[ "${CHOST}" == *-darwin* ]] ; then
mycmakeargs+=(
# disable use of SDK for the system itself
-DDARWIN_macosx_CACHED_SYSROOT=/
)
fi
cmake-utils_src_configure
if use test; then
local sys_dir=( "${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/${CLANG_SLOT}/{bin,$(get_libdir)},clang/${SLOT}/include} || die
cp "${EPREFIX}"/usr/lib/llvm/${CLANG_SLOT}/bin/clang{,++} \
"${BUILD_DIR}"/lib/llvm/${CLANG_SLOT}/bin/ || die
cp "${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 ${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/$(get_libdir)/LLVMgold.so ]]; then
ln -s "${EPREFIX}"/usr/lib/llvm/${CLANG_SLOT}/$(get_libdir)/LLVMgold.so \
"${BUILD_DIR}"/lib/llvm/${CLANG_SLOT}/$(get_libdir)/ || die
fi
fi
}
src_test() {
# respect TMPDIR!
local -x LIT_PRESERVES_TMP=1
# disable sandbox to have it stop clobbering LD_PRELOAD
local -x SANDBOX_ON=0
# wipe LD_PRELOAD to make ASAN happy
local -x LD_PRELOAD=
cmake-utils_src_make check-all
}
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