-DIST llvm-project-21.1.0.src.tar.xz 158971856 BLAKE2B ac8c3cc8d2c986abcaa523acc872b01311ec118a738654f9cc53a1d5fdba70ba10cfe829e23f3913557e460403ed6a2df81cb5e9a435c8e1ce08e7ead3511bf0 SHA512 1487dcdc041dd6cdcffa6cc95a565e18a9fce2a73215671e366a9601cecce6c8bf70065df5564de5998d1841c3d8d829a9fbd2cad72e3aab4db279e8885ff446

-DIST llvm-project-21.1.0.src.tar.xz.sig 438 BLAKE2B c5731350bc7454867da18887628c0e87bf404589097034c7ddfffbeec277b900bd1fa49daabd41d4f8800a8ab76105bf7e910a99dd970819ab987373d4ed4ed9 SHA512 c3cd0a759e22a24f4307d8747b7986f966f4fa3c413092efc73ccca252476f1b59878dc65b444884515bcce3d3bfab902f585cc1d08e2aeb55aa8e588128aeb6

-DIST llvm-project-645dd324d1b7d028745c2a4045b69e745df2ae6a.tar.gz 247443586 BLAKE2B dd3229c32768e42fd2f311638f1e63f5503fabee3fa414bc3300313b36bbfa062d90900319e4fdbbafae17947537fba699fe5940e1b6553a2d9a716c0ce7b59c SHA512 659dc22e2fd1fd0bced13f941127797dc7703b8d810eeb7a0fc51cf55c274e69e2d6660867c191d5d90615ddee3a1faff7f7cd357ff2eb88d715762be50098c3

-# Copyright 1999-2025 Gentoo Authors

-# Distributed under the terms of the GNU General Public License v2

-

-EAPI=8

-

-PYTHON_COMPAT=( python3_{11..14} )

-inherit cmake-multilib crossdev flag-o-matic llvm.org llvm-utils

-inherit python-any-r1 toolchain-funcs

-

-DESCRIPTION="New implementation of the C++ standard library, targeting C++11"

-HOMEPAGE="https://libcxx.llvm.org/"

-

-LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"

-SLOT="0"

-KEYWORDS="~amd64 ~arm ~arm64 ~loong ~riscv ~sparc ~x86 ~arm64-macos ~x64-macos"

-IUSE="+clang +libcxxabi +static-libs test"

-REQUIRED_USE="test? ( clang )"

-RESTRICT="!test? ( test )"

-

-RDEPEND="

- libcxxabi? (

- ~llvm-runtimes/libcxxabi-${PV}[static-libs?,${MULTILIB_USEDEP}]

- )

- !libcxxabi? ( >=sys-devel/gcc-4.7:=[cxx] )

-"

-DEPEND="

- ${RDEPEND}

- llvm-core/llvm:${LLVM_MAJOR}

-"

-BDEPEND="

- clang? (

- llvm-core/clang:${LLVM_MAJOR}

- llvm-core/clang-linker-config:${LLVM_MAJOR}

- llvm-runtimes/clang-rtlib-config:${LLVM_MAJOR}

- llvm-runtimes/clang-unwindlib-config:${LLVM_MAJOR}

- )

- !test? (

- ${PYTHON_DEPS}

- )

- test? (

- dev-debug/gdb[python]

- $(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')

- )

-"

-

-LLVM_COMPONENTS=(

- runtimes libcxx{,abi} libc llvm/{cmake,utils/llvm-lit} cmake

-)

-llvm.org_set_globals

-

-python_check_deps() {

- use test || return 0

- python_has_version "dev-python/lit[${PYTHON_USEDEP}]"

-}

-

-pkg_setup() {

- python-any-r1_pkg_setup

-

- if ! use libcxxabi && ! tc-is-gcc ; then

- eerror "To build ${PN} against libsupc++, you have to use gcc. Other"

- eerror "compilers are not supported. Please set CC=gcc and CXX=g++"

- eerror "and try again."

- die

- fi

-}

-

-test_compiler() {

- $(tc-getCXX) ${CXXFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c++ - \

- <<<'int main() { return 0; }' &>/dev/null

-}

-

-src_configure() {

- local install_prefix=${EPREFIX}

- is_crosspkg && install_prefix+=/usr/${CTARGET}

-

- # note: we need to do this before multilib kicks in since it will

- # alter the CHOST

- local cxxabi cxxabi_incs

- if use libcxxabi; then

- cxxabi=system-libcxxabi

- cxxabi_incs="${install_prefix}/usr/include/c++/v1"

- else

- local gcc_inc="${EPREFIX}/usr/lib/gcc/${CHOST}/$(gcc-fullversion)/include/g++-v$(gcc-major-version)"

- cxxabi=libsupc++

- cxxabi_incs="${gcc_inc};${gcc_inc}/${CHOST}"

- fi

-

- multilib-minimal_src_configure

-}

-

-multilib_src_configure() {

- # Workaround for bgo #961153.

- # TODO: Fix the multilib.eclass, so it sets CTARGET properly.

- if ! is_crosspkg; then

- export CTARGET=${CHOST}

- fi

-

- if use clang; then

- llvm_prepend_path -b "${LLVM_MAJOR}"

- local -x CC=${CTARGET}-clang-${LLVM_MAJOR}

- local -x CXX=${CTARGET}-clang++-${LLVM_MAJOR}

- strip-unsupported-flags

-

- # The full clang configuration might not be ready yet. Use the partial

- # configuration of components that libunwind depends on.

- local flags=(

- --config="${ESYSROOT}"/etc/clang/"${LLVM_MAJOR}"/gentoo-{rtlib,unwindlib,linker}.cfg

- )

- local -x CFLAGS="${CFLAGS} ${flags[@]}"

- local -x CXXFLAGS="${CXXFLAGS} ${flags[@]}"

- local -x LDFLAGS="${LDFLAGS} ${flags[@]}"

- fi

-

- # link to compiler-rt

- local use_compiler_rt=OFF

- [[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON

-

- local nostdlib_flags=( -nostdlib++ )

- if ! test_compiler && test_compiler "${nostdlib_flags[@]}"; then

- local -x LDFLAGS="${LDFLAGS} ${nostdlib_flags[*]}"

- ewarn "${CXX} seems to lack runtime, trying with ${nostdlib_flags[*]}"

- fi

-

- local libdir=$(get_libdir)

- local mycmakeargs=(

- -DLLVM_ROOT="${ESYSROOT}/usr/lib/llvm/${LLVM_MAJOR}"

-

- -DCMAKE_CXX_COMPILER_TARGET="${CTARGET}"

- -DPython3_EXECUTABLE="${PYTHON}"

- -DLLVM_ENABLE_RUNTIMES=libcxx

- -DLLVM_INCLUDE_TESTS=OFF

- -DLLVM_LIBDIR_SUFFIX=${libdir#lib}

-

- -DLIBCXX_ENABLE_SHARED=ON

- -DLIBCXX_ENABLE_STATIC=$(usex static-libs)

- -DLIBCXX_CXX_ABI=${cxxabi}

- -DLIBCXX_CXX_ABI_INCLUDE_PATHS=${cxxabi_incs}

- # we're using our own mechanism for generating linker scripts

- -DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF

- -DLIBCXX_HAS_MUSL_LIBC=$(llvm_cmake_use_musl)

- -DLIBCXX_INCLUDE_BENCHMARKS=OFF

- -DLIBCXX_INCLUDE_TESTS=$(usex test)

- -DLIBCXX_INSTALL_MODULES=ON

- -DLIBCXX_USE_COMPILER_RT=${use_compiler_rt}

- # this is broken with standalone builds, and also meaningless

- -DLIBCXXABI_USE_LLVM_UNWINDER=OFF

- )

- if is_crosspkg; then

- # Needed to target built libc headers

- local -x CFLAGS="${CFLAGS} -isystem ${ESYSROOT}/usr/${CTARGET}/usr/include"

- mycmakeargs+=(

- # Without this, the compiler will compile a test program

- # and fail due to no builtins.

- -DCMAKE_C_COMPILER_WORKS=1

- -DCMAKE_CXX_COMPILER_WORKS=1

- # Install inside the cross sysroot.

- -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/${CTARGET}/usr"

- )

- fi

- if use test; then

- mycmakeargs+=(

- -DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"

- -DLLVM_LIT_ARGS="$(get_lit_flags)"

- -DPython3_EXECUTABLE="${PYTHON}"

- )

- fi

- cmake_src_configure

-}

-

-multilib_src_compile() {

- cmake_src_compile

- if [[ ${CHOST} != *-darwin* ]] ; then

- gen_shared_ldscript

- use static-libs && gen_static_ldscript

- fi

-}

-

-multilib_src_test() {

- local -x LIT_PRESERVES_TMP=1

- cmake_build install-cxx-test-suite-prefix

- cp "${BUILD_DIR}"/{lib,libcxx/test-suite-install/$(get_libdir)}/libc++_shared.so || die

- if use static-libs; then

- cp "${BUILD_DIR}"/{lib,libcxx/test-suite-install/$(get_libdir)}/libc++_static.a || die

- fi

- cmake_build check-cxx

-}

-

-multilib_src_install() {

- cmake_src_install

- # since we've replaced libc++.{a,so} with ldscripts, now we have to

- # install the extra symlinks

- if [[ ${CHOST} != *-darwin* ]] ; then

- is_crosspkg && into /usr/${CTARGET}

- dolib.so lib/libc++_shared.so

- use static-libs && dolib.a lib/libc++_static.a

- fi

-

- local install_prefix=

- is_crosspkg && install_prefix=/usr/${CTARGET}

- insinto "${install_prefix}/usr/share/libc++/gdb"

- doins ../libcxx/utils/gdb/libcxx/printers.py

-

- local lib_version=$(sed -n -e 's/^LIBCXX_LIBRARY_VERSION:STRING=//p' CMakeCache.txt || die)

- [[ -n ${lib_version} ]] || die "Could not determine LIBCXX_LIBRARY_VERSION from CMakeCache.txt"

-

- insinto "${install_prefix}/usr/share/gdb/auto-load/usr/$(get_libdir)"

- newins - "libc++.so.${lib_version}-gdb.py" <<-EOF

- __import__("sys").path.insert(0, "${EPREFIX}/usr/share/libc++/gdb")

- __import__("printers").register_libcxx_printer_loader()

- EOF

-}

-

-# Usage: deps

-gen_ldscript() {

- local output_format

- output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')

- [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"

-

- cat <<-END_LDSCRIPT

-/* GNU ld script

- Include missing dependencies

-*/

-${output_format}

-GROUP ( $@ )

-END_LDSCRIPT

-}

-

-gen_static_ldscript() {

- # Move it first.

- mv lib/libc++{,_static}.a || die

- # Generate libc++.a ldscript for inclusion of its dependencies so that

- # clang++ -stdlib=libc++ -static works out of the box.

- local deps=(

- libc++_static.a

- $(usex libcxxabi libc++abi.a libsupc++.a)

- )

- # On Linux/glibc it does not link without libpthread or libdl. It is

- # fine on FreeBSD.

- use elibc_glibc && deps+=( libpthread.a libdl.a )

-

- gen_ldscript "${deps[*]}" > lib/libc++.a || die

-}

-

-gen_shared_ldscript() {

- # Move it first.

- mv lib/libc++{,_shared}.so || die

- local deps=(

- libc++_shared.so

- # libsupc++ doesn't have a shared version

- $(usex libcxxabi libc++abi.so libsupc++.a)

- )

-

- gen_ldscript "${deps[*]}" > lib/libc++.so || die

-}

-# Copyright 1999-2025 Gentoo Authors

-# Distributed under the terms of the GNU General Public License v2

-

-EAPI=8

-

-PYTHON_COMPAT=( python3_{11..14} )

-inherit cmake-multilib crossdev flag-o-matic llvm.org llvm-utils

-inherit python-any-r1 toolchain-funcs

-

-DESCRIPTION="New implementation of the C++ standard library, targeting C++11"

-HOMEPAGE="https://libcxx.llvm.org/"

-

-LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"

-SLOT="0"

-KEYWORDS="~amd64 ~arm ~arm64 ~loong ~riscv ~sparc ~x86 ~arm64-macos ~x64-macos"

-IUSE="+clang +libcxxabi +static-libs test"

-REQUIRED_USE="test? ( clang )"

-RESTRICT="!test? ( test )"

-

-RDEPEND="

- libcxxabi? (

- ~llvm-runtimes/libcxxabi-${PV}[static-libs?,${MULTILIB_USEDEP}]

- )

- !libcxxabi? ( >=sys-devel/gcc-4.7:=[cxx] )

-"

-DEPEND="

- ${RDEPEND}

- llvm-core/llvm:${LLVM_MAJOR}

-"

-BDEPEND="

- clang? (

- llvm-core/clang:${LLVM_MAJOR}

- )

- !test? (

- ${PYTHON_DEPS}

- )

- test? (

- dev-debug/gdb[python]

- $(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')

- )

-"

-

-LLVM_COMPONENTS=(

- runtimes libcxx{,abi} libc llvm/{cmake,utils/llvm-lit} cmake

-)

-llvm.org_set_globals

-

-python_check_deps() {

- use test || return 0

- python_has_version "dev-python/lit[${PYTHON_USEDEP}]"

-}

-

-pkg_setup() {

- python-any-r1_pkg_setup

-

- if ! use libcxxabi && ! tc-is-gcc ; then

- eerror "To build ${PN} against libsupc++, you have to use gcc. Other"

- eerror "compilers are not supported. Please set CC=gcc and CXX=g++"

- eerror "and try again."

- die

- fi

-}

-

-test_compiler() {

- $(tc-getCXX) ${CXXFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c++ - \

- <<<'int main() { return 0; }' &>/dev/null

-}

-

-src_configure() {

- local install_prefix=${EPREFIX}

- is_crosspkg && install_prefix+=/usr/${CTARGET}

-

- # note: we need to do this before multilib kicks in since it will

- # alter the CHOST

- local cxxabi cxxabi_incs

- if use libcxxabi; then

- cxxabi=system-libcxxabi

- cxxabi_incs="${install_prefix}/usr/include/c++/v1"

- else

- local gcc_inc="${EPREFIX}/usr/lib/gcc/${CHOST}/$(gcc-fullversion)/include/g++-v$(gcc-major-version)"

- cxxabi=libsupc++

- cxxabi_incs="${gcc_inc};${gcc_inc}/${CHOST}"

- fi

-

- multilib-minimal_src_configure

-}

-

-multilib_src_configure() {

- # Workaround for bgo #961153.

- # TODO: Fix the multilib.eclass, so it sets CTARGET properly.

- if ! is_crosspkg; then

- export CTARGET=${CHOST}

- fi

-

- if use clang; then

- llvm_prepend_path -b "${LLVM_MAJOR}"

- local -x CC=${CTARGET}-clang

- local -x CXX=${CTARGET}-clang++

- strip-unsupported-flags

- fi

-

- # link to compiler-rt

- local use_compiler_rt=OFF

- [[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON

-

- # Scenarios to consider:

- #

- # 1. Compiler test works with the default flags.

- # 2. There is a runtime library, but no stdlib. In that case, leave the

- # LDFLAGS untouched, since there is no self-dependency in libc++.

- # 3. There is no runtime library nor stdlib. In that case, overwrite the

- # LDFLAGS.

- local nostdlib_flags=( -nostdlib --rtlib=compiler-rt -lc )

- local nort_flags=( -nodefaultlibs -lc )

- if ! test_compiler && ! test_compiler "${nostdlib_flags[@]}"; then

- if test_compiler "${nort_flags[@]}"; then

- local -x LDFLAGS="${LDFLAGS} ${nort_flags[*]}"

- ewarn "${CXX} seems to lack runtime, trying with ${nort_flags[*]}"

- fi

- fi

-

- local libdir=$(get_libdir)

- local mycmakeargs=(

- -DLLVM_ROOT="${ESYSROOT}/usr/lib/llvm/${LLVM_MAJOR}"

-

- -DCMAKE_CXX_COMPILER_TARGET="${CTARGET}"

- -DPython3_EXECUTABLE="${PYTHON}"

- -DLLVM_ENABLE_RUNTIMES=libcxx

- -DLLVM_INCLUDE_TESTS=OFF

- -DLLVM_LIBDIR_SUFFIX=${libdir#lib}

-

- -DLIBCXX_ENABLE_SHARED=ON

- -DLIBCXX_ENABLE_STATIC=$(usex static-libs)

- -DLIBCXX_CXX_ABI=${cxxabi}

- -DLIBCXX_CXX_ABI_INCLUDE_PATHS=${cxxabi_incs}

- # we're using our own mechanism for generating linker scripts

- -DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF

- -DLIBCXX_HAS_MUSL_LIBC=$(llvm_cmake_use_musl)

- -DLIBCXX_INCLUDE_BENCHMARKS=OFF

- -DLIBCXX_INCLUDE_TESTS=$(usex test)

- -DLIBCXX_INSTALL_MODULES=ON

- -DLIBCXX_USE_COMPILER_RT=${use_compiler_rt}

- # this is broken with standalone builds, and also meaningless

- -DLIBCXXABI_USE_LLVM_UNWINDER=OFF

- )

- if is_crosspkg; then

- # Needed to target built libc headers

- local -x CFLAGS="${CFLAGS} -isystem ${ESYSROOT}/usr/${CTARGET}/usr/include"

- mycmakeargs+=(

- # Without this, the compiler will compile a test program

- # and fail due to no builtins.

- -DCMAKE_C_COMPILER_WORKS=1

- -DCMAKE_CXX_COMPILER_WORKS=1

- # Install inside the cross sysroot.

- -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/${CTARGET}/usr"

- )

- fi

- if use test; then

- mycmakeargs+=(

- -DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"

- -DLLVM_LIT_ARGS="$(get_lit_flags)"

- -DPython3_EXECUTABLE="${PYTHON}"

- )

- fi

- cmake_src_configure

-}

-

-multilib_src_compile() {

- cmake_src_compile

- if [[ ${CHOST} != *-darwin* ]] ; then

- gen_shared_ldscript

- use static-libs && gen_static_ldscript

- fi

-}

-

-multilib_src_test() {

- local -x LIT_PRESERVES_TMP=1

- cmake_build install-cxx-test-suite-prefix

- cp "${BUILD_DIR}"/{lib,libcxx/test-suite-install/$(get_libdir)}/libc++_shared.so || die

- if use static-libs; then

- cp "${BUILD_DIR}"/{lib,libcxx/test-suite-install/$(get_libdir)}/libc++_static.a || die

- fi

- cmake_build check-cxx

-}

-

-multilib_src_install() {

- cmake_src_install

- # since we've replaced libc++.{a,so} with ldscripts, now we have to

- # install the extra symlinks

- if [[ ${CHOST} != *-darwin* ]] ; then

- is_crosspkg && into /usr/${CTARGET}

- dolib.so lib/libc++_shared.so

- use static-libs && dolib.a lib/libc++_static.a

- fi

-

- local install_prefix=

- is_crosspkg && install_prefix=/usr/${CTARGET}

- insinto "${install_prefix}/usr/share/libc++/gdb"

- doins ../libcxx/utils/gdb/libcxx/printers.py

-

- local lib_version=$(sed -n -e 's/^LIBCXX_LIBRARY_VERSION:STRING=//p' CMakeCache.txt || die)

- [[ -n ${lib_version} ]] || die "Could not determine LIBCXX_LIBRARY_VERSION from CMakeCache.txt"

-

- insinto "${install_prefix}/usr/share/gdb/auto-load/usr/$(get_libdir)"

- newins - "libc++.so.${lib_version}-gdb.py" <<-EOF

- __import__("sys").path.insert(0, "${EPREFIX}/usr/share/libc++/gdb")

- __import__("printers").register_libcxx_printer_loader()

- EOF

-}

-

-# Usage: deps

-gen_ldscript() {

- local output_format

- output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')

- [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"

-

- cat <<-END_LDSCRIPT

-/* GNU ld script

- Include missing dependencies

-*/

-${output_format}

-GROUP ( $@ )

-END_LDSCRIPT

-}

-

-gen_static_ldscript() {

- # Move it first.

- mv lib/libc++{,_static}.a || die

- # Generate libc++.a ldscript for inclusion of its dependencies so that

- # clang++ -stdlib=libc++ -static works out of the box.

- local deps=(

- libc++_static.a

- $(usex libcxxabi libc++abi.a libsupc++.a)

- )

- # On Linux/glibc it does not link without libpthread or libdl. It is

- # fine on FreeBSD.

- use elibc_glibc && deps+=( libpthread.a libdl.a )

-

- gen_ldscript "${deps[*]}" > lib/libc++.a || die

-}

-

-gen_shared_ldscript() {

- # Move it first.

- mv lib/libc++{,_shared}.so || die

- local deps=(

- libc++_shared.so

- # libsupc++ doesn't have a shared version

- $(usex libcxxabi libc++abi.so libsupc++.a)

- )

-

- gen_ldscript "${deps[*]}" > lib/libc++.so || die

-}

-# Copyright 1999-2025 Gentoo Authors

-# Distributed under the terms of the GNU General Public License v2

-

-EAPI=8

-

-PYTHON_COMPAT=( python3_{11..14} )

-inherit cmake-multilib crossdev flag-o-matic llvm.org llvm-utils

-inherit python-any-r1 toolchain-funcs

-

-DESCRIPTION="New implementation of the C++ standard library, targeting C++11"

-HOMEPAGE="https://libcxx.llvm.org/"

-

-LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"

-SLOT="0"

-IUSE="+clang +libcxxabi +static-libs test"

-REQUIRED_USE="test? ( clang )"

-RESTRICT="!test? ( test )"

-

-RDEPEND="

- libcxxabi? (

- ~llvm-runtimes/libcxxabi-${PV}[static-libs?,${MULTILIB_USEDEP}]

- )

- !libcxxabi? ( >=sys-devel/gcc-4.7:=[cxx] )

-"

-DEPEND="

- ${RDEPEND}

- llvm-core/llvm:${LLVM_MAJOR}

-"

-BDEPEND="

- clang? (

- llvm-core/clang:${LLVM_MAJOR}

- llvm-core/clang-linker-config:${LLVM_MAJOR}

- llvm-runtimes/clang-rtlib-config:${LLVM_MAJOR}

- llvm-runtimes/clang-unwindlib-config:${LLVM_MAJOR}

- )

- !test? (

- ${PYTHON_DEPS}

- )

- test? (

- dev-debug/gdb[python]

- $(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')

- )

-"

-

-LLVM_COMPONENTS=(

- runtimes libcxx{,abi} libc llvm/{cmake,utils/llvm-lit} cmake

-)

-llvm.org_set_globals

-

-python_check_deps() {

- use test || return 0

- python_has_version "dev-python/lit[${PYTHON_USEDEP}]"

-}

-

-pkg_setup() {

- python-any-r1_pkg_setup

-

- if ! use libcxxabi && ! tc-is-gcc ; then

- eerror "To build ${PN} against libsupc++, you have to use gcc. Other"

- eerror "compilers are not supported. Please set CC=gcc and CXX=g++"

- eerror "and try again."

- die

- fi

-}

-

-test_compiler() {

- $(tc-getCXX) ${CXXFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c++ - \

- <<<'int main() { return 0; }' &>/dev/null

-}

-

-src_configure() {

- local install_prefix=${EPREFIX}

- is_crosspkg && install_prefix+=/usr/${CTARGET}

-

- # note: we need to do this before multilib kicks in since it will

- # alter the CHOST

- local cxxabi cxxabi_incs

- if use libcxxabi; then

- cxxabi=system-libcxxabi

- cxxabi_incs="${install_prefix}/usr/include/c++/v1"

- else

- local gcc_inc="${EPREFIX}/usr/lib/gcc/${CHOST}/$(gcc-fullversion)/include/g++-v$(gcc-major-version)"

- cxxabi=libsupc++

- cxxabi_incs="${gcc_inc};${gcc_inc}/${CHOST}"

- fi

-

- multilib-minimal_src_configure

-}

-

-multilib_src_configure() {

- # Workaround for bgo #961153.

- # TODO: Fix the multilib.eclass, so it sets CTARGET properly.

- if ! is_crosspkg; then

- export CTARGET=${CHOST}

- fi

-

- if use clang; then

- llvm_prepend_path -b "${LLVM_MAJOR}"

- local -x CC=${CTARGET}-clang-${LLVM_MAJOR}

- local -x CXX=${CTARGET}-clang++-${LLVM_MAJOR}

- strip-unsupported-flags

-

- # The full clang configuration might not be ready yet. Use the partial

- # configuration of components that libunwind depends on.

- local flags=(

- --config="${ESYSROOT}"/etc/clang/"${LLVM_MAJOR}"/gentoo-{rtlib,unwindlib,linker}.cfg

- )

- local -x CFLAGS="${CFLAGS} ${flags[@]}"

- local -x CXXFLAGS="${CXXFLAGS} ${flags[@]}"

- local -x LDFLAGS="${LDFLAGS} ${flags[@]}"

- fi

-

- # link to compiler-rt

- local use_compiler_rt=OFF

- [[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON

-

- local nostdlib_flags=( -nostdlib++ )

- if ! test_compiler && test_compiler "${nostdlib_flags[@]}"; then

- local -x LDFLAGS="${LDFLAGS} ${nort_flags[*]}"

- ewarn "${CXX} seems to lack runtime, trying with ${nort_flags[*]}"

- fi

-

- local libdir=$(get_libdir)

- local mycmakeargs=(

- -DLLVM_ROOT="${ESYSROOT}/usr/lib/llvm/${LLVM_MAJOR}"

-

- -DCMAKE_CXX_COMPILER_TARGET="${CTARGET}"

- -DPython3_EXECUTABLE="${PYTHON}"

- -DLLVM_ENABLE_RUNTIMES=libcxx

- -DLLVM_INCLUDE_TESTS=OFF

- -DLLVM_LIBDIR_SUFFIX=${libdir#lib}

-

- -DLIBCXX_ENABLE_SHARED=ON

- -DLIBCXX_ENABLE_STATIC=$(usex static-libs)

- -DLIBCXX_CXX_ABI=${cxxabi}

- -DLIBCXX_CXX_ABI_INCLUDE_PATHS=${cxxabi_incs}

- # we're using our own mechanism for generating linker scripts

- -DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF

- -DLIBCXX_HAS_MUSL_LIBC=$(llvm_cmake_use_musl)

- -DLIBCXX_INCLUDE_BENCHMARKS=OFF

- -DLIBCXX_INCLUDE_TESTS=$(usex test)

- -DLIBCXX_INSTALL_MODULES=ON

- -DLIBCXX_USE_COMPILER_RT=${use_compiler_rt}

- # this is broken with standalone builds, and also meaningless

- -DLIBCXXABI_USE_LLVM_UNWINDER=OFF

- )

- if is_crosspkg; then

- # Needed to target built libc headers

- local -x CFLAGS="${CFLAGS} -isystem ${ESYSROOT}/usr/${CTARGET}/usr/include"

- mycmakeargs+=(

- # Without this, the compiler will compile a test program

- # and fail due to no builtins.

- -DCMAKE_C_COMPILER_WORKS=1

- -DCMAKE_CXX_COMPILER_WORKS=1

- # Install inside the cross sysroot.

- -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/${CTARGET}/usr"

- )

- fi

- if use test; then

- mycmakeargs+=(

- -DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"

- -DLLVM_LIT_ARGS="$(get_lit_flags)"

- -DPython3_EXECUTABLE="${PYTHON}"

- )

- fi

- cmake_src_configure

-}

-

-multilib_src_compile() {

- cmake_src_compile

- if [[ ${CHOST} != *-darwin* ]] ; then

- gen_shared_ldscript

- use static-libs && gen_static_ldscript

- fi

-}

-

-multilib_src_test() {

- local -x LIT_PRESERVES_TMP=1

- # https://github.com/llvm/llvm-project/issues/153940

- local -x LIT_XFAIL="libcxx/gdb/gdb_pretty_printer_test.sh.cpp"

- cmake_build install-cxx-test-suite-prefix

- cp "${BUILD_DIR}"/{lib,libcxx/test-suite-install/$(get_libdir)}/libc++_shared.so || die

- if use static-libs; then

- cp "${BUILD_DIR}"/{lib,libcxx/test-suite-install/$(get_libdir)}/libc++_static.a || die

- fi

- cmake_build check-cxx

-}

-

-multilib_src_install() {

- cmake_src_install

- # since we've replaced libc++.{a,so} with ldscripts, now we have to

- # install the extra symlinks

- if [[ ${CHOST} != *-darwin* ]] ; then

- is_crosspkg && into /usr/${CTARGET}

- dolib.so lib/libc++_shared.so

- use static-libs && dolib.a lib/libc++_static.a

- fi

-

- local install_prefix=

- is_crosspkg && install_prefix=/usr/${CTARGET}

- insinto "${install_prefix}/usr/share/libc++/gdb"

- doins ../libcxx/utils/gdb/libcxx/printers.py

-

- local lib_version=$(sed -n -e 's/^LIBCXX_LIBRARY_VERSION:STRING=//p' CMakeCache.txt || die)

- [[ -n ${lib_version} ]] || die "Could not determine LIBCXX_LIBRARY_VERSION from CMakeCache.txt"

-

- insinto "${install_prefix}/usr/share/gdb/auto-load/usr/$(get_libdir)"

- newins - "libc++.so.${lib_version}-gdb.py" <<-EOF

- __import__("sys").path.insert(0, "${EPREFIX}/usr/share/libc++/gdb")

- __import__("printers").register_libcxx_printer_loader()

- EOF

-}

-

-# Usage: deps

-gen_ldscript() {

- local output_format

- output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')

- [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"

-

- cat <<-END_LDSCRIPT

-/* GNU ld script

- Include missing dependencies

-*/

-${output_format}

-GROUP ( $@ )

-END_LDSCRIPT

-}

-

-gen_static_ldscript() {

- # Move it first.

- mv lib/libc++{,_static}.a || die

- # Generate libc++.a ldscript for inclusion of its dependencies so that

- # clang++ -stdlib=libc++ -static works out of the box.

- local deps=(

- libc++_static.a

- $(usex libcxxabi libc++abi.a libsupc++.a)

- )

- # On Linux/glibc it does not link without libpthread or libdl. It is

- # fine on FreeBSD.

- use elibc_glibc && deps+=( libpthread.a libdl.a )

-

- gen_ldscript "${deps[*]}" > lib/libc++.a || die

-}

-

-gen_shared_ldscript() {

- # Move it first.

- mv lib/libc++{,_shared}.so || die

- local deps=(

- libc++_shared.so

- # libsupc++ doesn't have a shared version

- $(usex libcxxabi libc++abi.so libsupc++.a)

- )

-

- gen_ldscript "${deps[*]}" > lib/libc++.so || die

-}