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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
LLVM_COMPAT=( 18 )
inherit cmake flag-o-matic llvm-r1
MY_P=llvm-project-rocm-${PV}
components=( "amd/device-libs" )
if [[ ${PV} == *9999 ]] ; then
EGIT_REPO_URI="https://github.com/ROCm/llvm-project"
inherit git-r3
S="${WORKDIR}/${P}/${components[0]}"
else
SRC_URI="https://github.com/ROCm/llvm-project/archive/rocm-${PV}.tar.gz -> ${MY_P}.tar.gz"
S="${WORKDIR}/${MY_P}/${components[0]}"
KEYWORDS="~amd64"
fi
DESCRIPTION="Radeon Open Compute Device Libraries"
HOMEPAGE="https://github.com/ROCm/ROCm-Device-Libs"
LICENSE="MIT"
SLOT="0/$(ver_cut 1-2)"
IUSE="test"
RESTRICT="!test? ( test )"
BDEPEND="
dev-build/rocm-cmake
$(llvm_gen_dep '
llvm-core/clang:${LLVM_SLOT}
llvm-core/lld:${LLVM_SLOT}
')
"
CMAKE_BUILD_TYPE=Release
PATCHES=(
"${FILESDIR}/${PN}-6.1.0-fix-llvm-link.patch"
"${FILESDIR}/${PN}-6.1.2-fix-build.patch"
)
src_unpack() {
if [[ ${PV} == *9999 ]] ; then
git-r3_fetch
git-r3_checkout '' . '' "${components[@]}"
else
archive="${MY_P}.tar.gz"
ebegin "Unpacking from ${archive}"
tar -x -z -o \
-f "${DISTDIR}/${archive}" \
"${components[@]/#/${MY_P}/}" || die
eend ${?}
fi
}
src_prepare() {
sed -e "s:amdgcn/bitcode:lib/amdgcn/bitcode:" -i "${S}/cmake/OCL.cmake" || die
sed -e "s:amdgcn/bitcode:lib/amdgcn/bitcode:" -i "${S}/cmake/Packages.cmake" || die
cmake_src_prepare
}
src_configure() {
# Do not trust CMake with autoselecting Clang, as it autoselects the latest one
# producing too modern LLVM bitcode and causing linker errors in other packages.
# Clean up unsupported flags for the switched compiler, see #936099
local -x CC="$(get_llvm_prefix)/bin/clang"
local -x CXX="$(get_llvm_prefix)/bin/clang++"
strip-unsupported-flags
local mycmakeargs=(
-DLLVM_DIR="$(get_llvm_prefix)"
)
cmake_src_configure
}
src_install() {
cmake_src_install
local CLANG_EXE="$(get_llvm_prefix)/bin/clang"
# install symlink, so that clang won't ask for "--rocm-device-lib-path" flag anymore
local bitcodedir="$("${CLANG_EXE}" -print-resource-dir)/$(get_libdir)/amdgcn/bitcode"
dosym -r "/usr/lib/amdgcn/bitcode" "${bitcodedir#${EPREFIX}}"
}
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