commit: cfd6d3ea4908ec91c736d17f5b2f7dbb2f4f19b6 Author: Florian Albrechtskirchinger <falbrechtskirchinger <AT> gmail <DOT> com> AuthorDate: Wed Feb 25 03:04:06 2026 +0000 Commit: Florian Albrechtskirchinger <falbrechtskirchinger <AT> gmail <DOT> com> CommitDate: Thu Feb 26 05:06:55 2026 +0000 URL: https://gitweb.gentoo.org/repo/proj/guru.git/commit/?id=cfd6d3ea
sys-devel/clang-bloomberg-p2996: add 21.0.0_p20260204 Signed-off-by: Florian Albrechtskirchinger <falbrechtskirchinger <AT> gmail.com> sys-devel/clang-bloomberg-p2996/Manifest | 1 + .../clang-bloomberg-p2996-21.0.0_p20260204.ebuild | 241 +++++++++++++++++++++ 2 files changed, 242 insertions(+) diff --git a/sys-devel/clang-bloomberg-p2996/Manifest b/sys-devel/clang-bloomberg-p2996/Manifest index 6c556cd4b9..81dd5f6f09 100644 --- a/sys-devel/clang-bloomberg-p2996/Manifest +++ b/sys-devel/clang-bloomberg-p2996/Manifest @@ -1 +1,2 @@ DIST clang-bloomberg-p2996-21.0.0_p20250702.tar.gz 240748568 BLAKE2B 07d1e5dfab32031ddbc5f7f86a7cfef9f751c7db71af1aea8c87bfb9a4819c5f47907d2c1a35fb929f28974df1413d394a6cef35324b6dc49e224ae3d6b4afe8 SHA512 f9304170c1f139e25fa17ba20eeb39e4612eedd853b7889d194fd526081c6a3eff05077bb9ae954360ee600b7419a8d63cb9171bcac8ba8694ae62b0413f891c +DIST clang-bloomberg-p2996-21.0.0_p20260204.tar.gz 240770843 BLAKE2B 9dadc6c85a363d7170ec163910bcde2a92529024f08f8140e35c4e87452100252c1d427f22eedb220967439b585e98259ebd70687353ffea7124f9f5b46e38e5 SHA512 57d359fa677cb71f9a57254f90b134a47758e343850431c439690ca7922b012acdff31479fda4f9e49762dd1568204a7d181549980e86091798a00174fc5c912 diff --git a/sys-devel/clang-bloomberg-p2996/clang-bloomberg-p2996-21.0.0_p20260204.ebuild b/sys-devel/clang-bloomberg-p2996/clang-bloomberg-p2996-21.0.0_p20260204.ebuild new file mode 100644 index 0000000000..9ad4e9fbe8 --- /dev/null +++ b/sys-devel/clang-bloomberg-p2996/clang-bloomberg-p2996-21.0.0_p20260204.ebuild @@ -0,0 +1,241 @@ +# Copyright 2025 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=8 + +inherit cmake prefix python-utils-r1 + +DESCRIPTION="Clang fork implementing experimental support for P2996 (Reflection for C++26)" +HOMEPAGE="https://github.com/bloomberg/clang-p2996"; + +LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA BSD MIT public-domain rc" +SLOT="0" + +if [[ ${PV} == 9999 ]]; then + inherit git-r3 + EGIT_REPO_URI="https://github.com/bloomberg/clang-p2996.git"; + EGIT_BRANCH="p2996" +else + GIT_COMMIT="2ea0a79fe7bb5f6fdb8c687ba0e21ab63696e7f7" + SRC_URI="https://github.com/bloomberg/clang-p2996/archive/${GIT_COMMIT}.tar.gz -> ${P}.tar.gz" + S="${WORKDIR}/clang-p2996-${GIT_COMMIT}" + KEYWORDS="~amd64" +fi + +ALL_LLVM_TARGETS="AArch64 AMDGPU ARC ARM AVR BPF CSKY DirectX Hexagon Lanai LoongArch M68k MSP430 Mips NVPTX PowerPC RISCV SPIRV Sparc SystemZ VE WebAssembly +X86 XCore Xtensa" +IUSE="+debug +default-reflection-latest +pie" +for target in ${ALL_LLVM_TARGETS}; do + IUSE+=" ${target%${target#+}}llvm_targets_${target#+}" +done + +# TODO +RDEPEND="virtual/zlib:=" +DEPEND="${RDEPEND}" + +PATCHES=( + "${FILESDIR}/21.0.0_p20250702-unknown-reflection.patch" + "${FILESDIR}/21.0.0_p20250702-uninitialized.patch" +) + +CMAKE_USE_DIR="$S/llvm" + +src_prepare() { + # create extra parent dir for relative CLANG_RESOURCE_DIR access + mkdir -p x/y || die + BUILD_DIR=${WORKDIR}/x/y/clang + + use default-reflection-latest && eapply "${FILESDIR}/21.0.0_p20250702-enable-reflection-latest.patch" + + cmake_src_prepare + + # add Gentoo Portage Prefix for Darwin (see prefix-dirs.patch) + eprefixify \ + clang/lib/Lex/InitHeaderSearch.cpp \ + clang/lib/Driver/ToolChains/Darwin.cpp || die + + if ! use prefix-guest && [[ -n ${EPREFIX} ]]; then + sed -i "/LibDir.*Loader/s@return \"\/\"@return \"${EPREFIX}/\"@" clang/lib/Driver/ToolChains/Linux.cpp || die + fi +} + +src_configure() { + local targets=() + for target in ${ALL_LLVM_TARGETS}; do + use llvm_targets_${target#+} && targets+=("${target#+}") + done + if [ ${#targets[@]} -eq 0 ]; then + die "At least one LLVM target must be enabled" + fi + + local libdir=$(get_libdir) + local mycmakeargs=( + -DDEFAULT_SYSROOT=$(usex prefix-guest "" "${EPREFIX}") + -DCMAKE_CXX_COMPILER_TARGET="${CHOST}" + -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/bloomberg-p2996" + -DLLVM_LIBDIR_SUFFIX=${libdir#lib} + + -DBUILD_SHARED_LIBS=OFF + -DLLVM_HOST_TRIPLE="${CHOST}" + -DLLVM_BUILD_LLVM_DYLIB=ON + -DLLVM_LINK_LLVM_DYLIB=ON + -DLLVM_ENABLE_PROJECTS="clang" + -DLLVM_ENABLE_RUNTIMES="libcxxabi;libcxx" + -DLLVM_TARGETS_TO_BUILD="$(IFS=';'; echo "${targets[*]}")" + -DLLVM_INCLUDE_BENCHMARKS=OFF + -DLLVM_INCLUDE_TESTS=OFF + -DLLVM_BUILD_TESTS=OFF + -DLLVM_INSTALL_GTEST=OFF + + -DLLVM_ENABLE_ASSERTIONS=$(usex debug) + -DLLVM_ENABLE_EH=ON + -DLLVM_ENABLE_RTTI=ON + -DLLVM_ENABLE_ZLIB=FORCE_ON + + -DLIBCXX_ENABLE_SHARED=ON + -DLIBCXX_ENABLE_STATIC=OFF + -DLIBCXX_CXX_ABI=libcxxabi + -DLIBCXX_USE_COMPILER_RT=OFF + -DLIBCXX_HAS_GCC_S_LIB=OFF + -DLIBCXX_INCLUDE_BENCHMARKS=OFF + -DLIBCXX_INCLUDE_TESTS=OFF + -DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include + -DLIBCXXABI_USE_LLVM_UNWINDER=OFF + + -DCLANG_CONFIG_FILE_SYSTEM_DIR="${EPREFIX}/etc/clang/bloomberg-p2996" + -DCLANG_CONFIG_FILE_USER_DIR="~/.config/clang" + # relative to bindir + -DCLANG_RESOURCE_DIR="../../../../lib/clang/bloomberg-p2996" + -DCLANG_LINK_CLANG_DYLIB=ON + -DCLANG_INCLUDE_TESTS=OFF + + -DCLANG_DEFAULT_OPENMP_RUNTIME=libomp + -DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie) + + -DPython3_EXECUTABLE="${PYTHON}" + + -DOCAMLFIND=NO + ) + + use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG" + cmake_src_configure +} + +src_compile() { + cmake_src_compile +} + +_doclang_cfg() { + local triple="${1}" + + local tool + for tool in clang{,++,-cpp}; do + newins - "${triple}-${tool}.cfg" <<-EOF + # This configuration file is used by ${triple}-${tool} driver. + @../${triple}-${tool}.cfg + @gentoo-plugins.cfg + @gentoo-runtimes.cfg + EOF + + if [[ ! -f "${ED}/etc/clang/bloomberg-p2996/bloomberg-p2996-${tool}.cfg" ]]; then + dosym "${triple}-${tool}.cfg" "/etc/clang/bloomberg-p2996/bloomberg-p2996-${tool}.cfg" + fi + done + + # Install symlinks for triples with other vendor strings since some + # programs insist on mangling the triple. + local vendor + for vendor in gentoo pc unknown; do + local vendor_triple="${triple%%-*}-${vendor}-${triple#*-*-}" + for tool in clang{,++,-cpp}; do + if [[ ! -f "${ED}/etc/clang/bloomberg-p2996/${vendor_triple}-${tool}.cfg" ]]; then + dosym "${triple}-${tool}.cfg" "/etc/clang/bloomberg-p2996/${vendor_triple}-${tool}.cfg" + fi + done + done +} + +doclang_cfg() { + #local triple=$(get_abi_CHOST "${abi}") + local triple=${CHOST} + + _doclang_cfg ${triple} + + # LLVM may have different arch names in some cases. For example in x86 + # profiles the triple uses i686, but llvm will prefer i386 if invoked + # with "clang" on x86 or "clang -m32" on x86_64. The gentoo triple will + # be used if invoked through ${CHOST}-clang{,++,-cpp} though. + # + # To make sure the correct triples are installed, + # see Triple::getArchTypeName() in llvm/lib/TargetParser/Triple.cpp + # and compare with CHOST values in profiles. + + local abi=${triple%%-*} + case ${abi} in + armv4l|armv4t|armv5tel|armv6j|armv7a) + _doclang_cfg ${triple/${abi}/arm} + ;; + i686) + _doclang_cfg ${triple/${abi}/i386} + ;; + sparc) + _doclang_cfg ${triple/${abi}/sparcel} + ;; + sparc64) + _doclang_cfg ${triple/${abi}/sparcv9} + ;; + esac +} + +src_install() { + cmake_src_install + + # Rename programs and update symlinks + cd "${D}/usr/lib/llvm/bloomberg-p2996/bin" || die + for file in *; do + if [[ -f "${file}" && -x "${file}" && ! -L "${file}" ]]; then + # Rename regular, executable files + mv "${file}" "bloomberg-p2996-${file}" || die "Failed to rename ${file}" + elif [[ -L "${file}" ]]; then + # Update symlink to point to renamed target + local target + target=$(readlink "${file}") || die "Failed to read symlink ${file}" + ln -sf "bloomberg-p2996-${target}" "bloomberg-p2996-${file}" || die "Failed to update symlink ${file}" + rm "${file}" || die "Failed to remove original symlink ${file}" + fi + done + + local ldpath="${EPREFIX}/usr/lib/llvm/bloomberg-p2996/$(get_libdir)" + newenvd - "60llvm-bloomberg-p2996" <<-_EOF_ + PATH="${EPREFIX}/usr/lib/llvm/bloomberg-p2996/bin" + # we need to duplicate it in ROOTPATH for Portage to respect... + ROOTPATH="${EPREFIX}/usr/lib/llvm/bloomberg-p2996/bin" + LDPATH="${ldpath}:${ldpath}/${CHOST}" + _EOF_ + + insinto "/etc/clang/bloomberg-p2996" + newins - gentoo-runtimes.cfg <<-EOF + # This file is initially generated by sys-devel/clang-bloomberg-p2996::guru. + # It is used to control the default runtimes using by clang. + + --rtlib=libgcc + --unwindlib=libgcc + --stdlib=libc++ + -fuse-ld=bfd + -L${ldpath}/${CHOST} + EOF + newins - gentoo-plugins.cfg <<-EOF + # This file is used to load optional LLVM plugins. + EOF + + doclang_cfg + + rm -r "${D}/usr/share/man" || die +} + +pkg_postinst() { + elog "Binaries are installed with a 'bloomberg-p2996-' prefix," + elog "e.g.: bloomberg-p2996-clang++" + use default-reflection-latest && \ + elog "Pass -fno-reflection-latest to disable reflection support." || \ + elog "Pass -freflection-latest to enable reflection support." +}
