Files
poky/meta/recipes-devtools/clang/libcxx_git.bb
Ross Burton ff83c5de2e clang: globally disable build-time RPATHs for reproducibility
Various bits of the LLVM project set the build RPATH in a way that means
we have non-deterministic binaries even though we should always be using
relative paths.

This clearly is not working as some of the binaries get rewritten on
install and have large string paddings that correlate with erased build
paths.

So that we don't have to disable RPATHs in every recipe, just do it once
in the common include file and remove the existing recipe-specific
assignments that are now not needed.

(From OE-Core rev: acc8c5c89c0f1bff3413d2301a65afd89bd0d9ff)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2025-10-09 10:58:07 +01:00

123 lines
5.7 KiB
BlitzBasic

# Copyright (C) 2015 Khem Raj <raj.khem@gmail.com>
# Released under the MIT license (see COPYING.MIT for the terms)
SUMMARY = "libc++ is a new implementation of the C++ standard library, targeting C++11 and above"
HOMEPAGE = "http://libcxx.llvm.org/"
SECTION = "base"
require common-clang.inc
require common-source.inc
inherit cmake
BPN = "libcxx"
PACKAGECONFIG ??= "compiler-rt exceptions ${@bb.utils.contains("TC_CXX_RUNTIME", "llvm", "unwind unwind-shared", "", d)}"
PACKAGECONFIG:append:armv5 = " no-atomics"
PACKAGECONFIG:remove:class-native = "compiler-rt"
PACKAGECONFIG[unwind] = "-DLIBCXXABI_USE_LLVM_UNWINDER=ON -DLIBCXXABI_ENABLE_STATIC_UNWINDER=ON,-DLIBCXXABI_USE_LLVM_UNWINDER=OFF,,"
PACKAGECONFIG[exceptions] = "-DLIBCXXABI_ENABLE_EXCEPTIONS=ON -DLIBCXX_ENABLE_EXCEPTIONS=ON,-DLIBCXXABI_ENABLE_EXCEPTIONS=OFF -DLIBCXX_ENABLE_EXCEPTIONS=OFF -DCMAKE_REQUIRED_FLAGS='-fno-exceptions',"
PACKAGECONFIG[no-atomics] = "-D_LIBCXXABI_HAS_ATOMIC_BUILTINS=OFF -DCMAKE_SHARED_LINKER_FLAGS='-latomic',,"
PACKAGECONFIG[compiler-rt] = "-DLIBCXX_USE_COMPILER_RT=ON -DLIBCXXABI_USE_COMPILER_RT=ON -DLIBUNWIND_USE_COMPILER_RT=ON,,compiler-rt"
PACKAGECONFIG[unwind-shared] = "-DLIBUNWIND_ENABLE_SHARED=ON,-DLIBUNWIND_ENABLE_SHARED=OFF,,"
PACKAGECONFIG[unwind-cross] = "-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON,-DLIBUNWIND_ENABLE_CROSS_UNWINDING=OFF,,"
DEPENDS:append:class-target = " virtual/cross-c++ ${MLPREFIX}clang-cross-${TARGET_ARCH} virtual/${MLPREFIX}libc virtual/${MLPREFIX}compilerlibs"
DEPENDS:append:class-nativesdk = " virtual/cross-c++ clang-crosssdk-${SDK_SYS} nativesdk-compiler-rt"
DEPENDS:append:class-native = " clang-native compiler-rt-native"
DEPENDS:remove:class-native = "libcxx-native"
COMPILER_RT ?= "${@bb.utils.contains("PACKAGECONFIG", "compiler-rt", "-rtlib=compiler-rt", "-rtlib=libgcc", d)}"
UNWINDLIB ?= "${@bb.utils.contains("PACKAGECONFIG", "unwind", "-unwindlib=none", "-unwindlib=libgcc", d)}"
LIBCPLUSPLUS ?= "-stdlib=libstdc++"
# Trick clang.bbclass into not creating circular dependencies
UNWINDLIB:class-nativesdk = "-unwindlib=libgcc"
LIBCPLUSPLUS:class-nativesdk = "-stdlib=libstdc++"
UNWINDLIB:class-native = "-unwindlib=libgcc"
LIBCPLUSPLUS:class-native = "-stdlib=libstdc++"
LDFLAGS:append = " ${UNWINDLIB}"
INHIBIT_DEFAULT_DEPS = "1"
LIC_FILES_CHKSUM = "file://libcxx/LICENSE.TXT;md5=55d89dd7eec8d3b4204b680e27da3953 \
file://libcxxabi/LICENSE.TXT;md5=7b9334635b542c56868400a46b272b1e \
file://libunwind/LICENSE.TXT;md5=f66970035d12f196030658b11725e1a1 \
"
OECMAKE_TARGET_COMPILE = "${@bb.utils.contains("TC_CXX_RUNTIME", "llvm", "unwind", "", d)} cxxabi cxx"
OECMAKE_TARGET_INSTALL = "${@bb.utils.contains("TC_CXX_RUNTIME", "llvm", "install-unwind", "", d)} install-cxxabi install-cxx"
CC = "${CCACHE}${HOST_PREFIX}clang ${HOST_CC_ARCH}${TOOLCHAIN_OPTIONS}"
CXX = "${CCACHE}${HOST_PREFIX}clang++ ${HOST_CC_ARCH}${TOOLCHAIN_OPTIONS}"
BUILD_CC = "${CCACHE}clang ${BUILD_CC_ARCH}"
BUILD_CXX = "${CCACHE}clang++ ${BUILD_CC_ARCH}"
LDFLAGS += "${COMPILER_RT} ${UNWINDLIB} ${LIBCPLUSPLUS}"
CXXFLAGS += "${LIBCPLUSPLUS}"
TOOLCHAIN = "clang"
TOOLCHAIN_NATIVE = "clang"
OECMAKE_SOURCEPATH = "${S}/llvm"
EXTRA_OECMAKE += "\
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=OFF \
-DCMAKE_CROSSCOMPILING=ON \
-DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON \
-DLLVM_ENABLE_RTTI=ON \
-DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON \
-DLIBCXXABI_INCLUDE_TESTS=OFF \
-DLIBCXXABI_ENABLE_SHARED=ON \
-DLIBCXXABI_LIBCXX_INCLUDES=${S}/libcxx/include \
-DLIBCXX_CXX_ABI=libcxxabi \
-DLIBCXX_CXX_ABI_INCLUDE_PATHS=${S}/libcxxabi/include \
-DLIBCXX_CXX_ABI_LIBRARY_PATH=${B}/lib${LLVM_LIBDIR_SUFFIX} \
-S ${S}/runtimes \
-DLLVM_ENABLE_RUNTIMES='libcxx;libcxxabi;libunwind' \
-DLLVM_RUNTIME_TARGETS=${HOST_ARCH} \
-DLLVM_LIBDIR_SUFFIX=${LLVM_LIBDIR_SUFFIX} \
-DLLVM_APPEND_VC_REV=OFF \
"
EXTRA_OECMAKE:append:class-target = " \
-DCMAKE_AR=${STAGING_BINDIR_TOOLCHAIN}/${AR} \
-DCMAKE_NM=${STAGING_BINDIR_TOOLCHAIN}/${NM} \
-DCMAKE_RANLIB=${STAGING_BINDIR_TOOLCHAIN}/${RANLIB} \
-DLLVM_HOST_TRIPLE=${TARGET_SYS} \
-DCMAKE_POSITION_INDEPENDENT_CODE=ON \
"
EXTRA_OECMAKE:append:class-nativesdk = " \
-DCMAKE_AR=${STAGING_BINDIR_TOOLCHAIN}/${AR} \
-DCMAKE_NM=${STAGING_BINDIR_TOOLCHAIN}/${NM} \
-DCMAKE_RANLIB=${STAGING_BINDIR_TOOLCHAIN}/${RANLIB} \
-DLLVM_DEFAULT_TARGET_TRIPLE=${HOST_SYS} \
"
EXTRA_OECMAKE:append:libc-musl = " -DLIBCXX_HAS_MUSL_LIBC=ON "
CXXFLAGS:append:armv5 = " -mfpu=vfp2"
ALLOW_EMPTY:${PN} = "1"
PROVIDES:append = " ${@bb.utils.contains("TC_CXX_RUNTIME", "llvm", "libunwind", "false", d)}"
do_install:append() {
if ${@bb.utils.contains("TC_CXX_RUNTIME", "llvm", "true", "false", d)}
then
for f in libunwind.h __libunwind_config.h unwind.h unwind_itanium.h unwind_arm_ehabi.h
do
install -Dm 0644 ${S}/libunwind/include/$f ${D}${includedir}/$f
done
install -d ${D}${libdir}/pkgconfig
sed -e 's,@LIBDIR@,${libdir},g;s,@VERSION@,${PV},g' ${S}/libunwind/libunwind.pc.in > ${D}${libdir}/pkgconfig/libunwind.pc
fi
}
PACKAGES:append = "${@bb.utils.contains("TC_CXX_RUNTIME", "llvm", " libunwind", "", d)}"
FILES:libunwind = "${@bb.utils.contains("TC_CXX_RUNTIME", "llvm", " ${libdir}/libunwind.so.*", "", d)}"
# Package library module manifest path
FILES:${PN}-dev += "${datadir}/libc++/v1/ ${libdir}/libc++.modules.json"
BBCLASSEXTEND = "native nativesdk"