diff options
Diffstat (limited to 'llvm-runtimes/libgcc/libgcc-21.0.0_pre20250311.ebuild')
| -rw-r--r-- | llvm-runtimes/libgcc/libgcc-21.0.0_pre20250311.ebuild | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/llvm-runtimes/libgcc/libgcc-21.0.0_pre20250311.ebuild b/llvm-runtimes/libgcc/libgcc-21.0.0_pre20250311.ebuild new file mode 100644 index 000000000000..2c2ae9d40376 --- /dev/null +++ b/llvm-runtimes/libgcc/libgcc-21.0.0_pre20250311.ebuild @@ -0,0 +1,172 @@ +# Copyright 1999-2025 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=8 + +PYTHON_COMPAT=( python3_{10..13} ) + +inherit cmake crossdev flag-o-matic llvm.org llvm-utils python-any-r1 +inherit toolchain-funcs + +DESCRIPTION="Compiler runtime library for clang, compatible with libgcc_s" +HOMEPAGE="https://llvm.org/" + +LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )" +SLOT="0" +IUSE="debug test" + +DEPEND=" + ~llvm-runtimes/libunwind-${PV}[static-libs] +" +RDEPEND=" + ${DEPEND} + !sys-devel/gcc +" +BDEPEND=" + llvm-core/clang:${LLVM_MAJOR} + test? ( + $(python_gen_any_dep ">=dev-python/lit-15[\${PYTHON_USEDEP}]") + =llvm-core/clang-${LLVM_VERSION}*:${LLVM_MAJOR} + ) + !test? ( + ${PYTHON_DEPS} + ) +" + +LLVM_COMPONENTS=( compiler-rt cmake llvm/cmake llvm-libgcc ) +LLVM_TEST_COMPONENTS=( llvm/include/llvm/TargetParser ) +llvm.org_set_globals + +python_check_deps() { + use test || return 0 + python_has_version ">=dev-python/lit-15[${PYTHON_USEDEP}]" +} + +pkg_setup() { + if target_is_not_host || tc-is-cross-compiler ; then + # strips vars like CFLAGS="-march=x86_64-v3" for non-x86 architectures + CHOST=${CTARGET} strip-unsupported-flags + # overrides host docs otherwise + DOCS=() + fi + python-any-r1_pkg_setup +} + +src_configure() { + # We need to build a separate copy of compiler-rt, because we need to disable the + # COMPILER_RT_BUILTINS_HIDE_SYMBOLS option - compatibility with libgcc requires + # visibility of all symbols. + + llvm_prepend_path "${LLVM_MAJOR}" + + # LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844 + use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG" + + export CC=${CTARGET}-clang CXX=${CTARGET}-clang++ + strip-unsupported-flags + + local mycmakeargs=( + -DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${LLVM_MAJOR}" + + -DCOMPILER_RT_INCLUDE_TESTS=$(usex test) + -DCOMPILER_RT_BUILD_CRT=OFF + -DCOMPILER_RT_BUILD_CTX_PROFILE=OFF + -DCOMPILER_RT_BUILD_LIBFUZZER=OFF + -DCOMPILER_RT_BUILD_MEMPROF=OFF + -DCOMPILER_RT_BUILD_ORC=OFF + -DCOMPILER_RT_BUILD_PROFILE=OFF + -DCOMPILER_RT_BUILD_SANITIZERS=OFF + -DCOMPILER_RT_BUILD_XRAY=OFF + + -DCOMPILER_RT_BUILTINS_HIDE_SYMBOLS=OFF + + -DPython3_EXECUTABLE="${PYTHON}" + ) + + # disable building non-native runtimes since we don't do multilib + if use amd64; then + mycmakeargs+=( + -DCAN_TARGET_i386=OFF + ) + fi + + if use test; then + mycmakeargs+=( + -DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit" + -DLLVM_LIT_ARGS="$(get_lit_flags)" + + -DCOMPILER_RT_TEST_COMPILER="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang" + -DCOMPILER_RT_TEST_CXX_COMPILER="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang++" + ) + fi + + cmake_src_configure +} + +# Usage: deps +gen_ldscript() { + local output_format + output_format=$($(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 ( $@ ) +END_LDSCRIPT +} + +src_compile() { + cmake_src_compile + + local rtlib=$( + "${CC}" -rtlib=compiler-rt -resource-dir="${BUILD_DIR}" \ + -print-libgcc-file-name || die + ) + + # Use the llvm-libgcc's version script to produce libgcc.{a,so}, which + # combines compiler-rt and libunwind into a libgcc replacement. + # + # What we do here is similar to what upstream does[0], with the following + # differences: + # + # * We build the local copy of compiler-rt manually, to have a full control + # over CMake options. + # * Upstream links the locally built copy of libunwind statically. We link the + # system-wide libunwind dynamically. + # + # [0] https://github.com/llvm/llvm-project/blob/llvmorg-19.1.7/llvm-libgcc/CMakeLists.txt#L102-L120 + "${CC}" -E -xc \ + "${WORKDIR}/llvm-libgcc/gcc_s.ver.in" \ + -o gcc_s.ver || die + "${CC}" -nostdlib \ + ${LDFLAGS} \ + -Wl,--version-script,gcc_s.ver \ + -Wl,--undefined-version \ + -Wl,--whole-archive \ + "${rtlib}" \ + -Wl,-soname,libgcc_s.so.1.0 \ + -lc -lunwind -shared \ + -o libgcc_s.so.1.0 || die + # Generate libgcc_s.so ldscript for inclusion of libunwind as a + # dependency so that `clang -lgcc_s` works out of the box. + gen_ldscript libgcc_s.so.1.0 libunwind.so.1.0 > libgcc_s.so || die + cp "${rtlib}" libgcc.a || die +} + +src_test() { + # respect TMPDIR! + local -x LIT_PRESERVES_TMP=1 + + cmake_build check-builtins +} + +src_install() { + local libdir=$(get_libdir) + dolib.so libgcc_s.so.1.0 libgcc_s.so + dolib.a libgcc.a + dosym libgcc_s.so.1.0 "/usr/${libdir}/libgcc_s.so.1" + dosym libunwind.a "/usr/${libdir}/libgcc_eh.a" +} |