# Template file for 'llvm12'
pkgname=llvm12
version=12.0.0
revision=2
wrksrc="llvm-${version}.src"
build_style=cmake
configure_args="
 -DCMAKE_BUILD_TYPE=Release -Wno-dev
 -DENABLE_LINKER_BUILD_ID=ON
 -DLLDB_USE_SYSTEM_SIX=ON
 -DLIBCXX_CXX_ABI=libcxxabi
 -DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON
 -DLIBCXXABI_USE_LLVM_UNWINDER=1
 -DLIBOMP_ENABLE_SHARED=ON
 -DLIBOMP_INSTALL_ALIASES=OFF
 -DLLVM_INCLUDE_DOCS=ON
 -DLLVM_BUILD_DOCS=ON
 -DLLVM_ENABLE_SPHINX=ON
 -DSPHINX_WARNINGS_AS_ERRORS=OFF
 -DLLVM_INSTALL_UTILS=ON
 -DLLVM_BUILD_LLVM_DYLIB=ON
 -DLLVM_LINK_LLVM_DYLIB=ON
 -DLLVM_ENABLE_RTTI=ON
 -DLLVM_ENABLE_FFI=ON
 -DLLVM_BINUTILS_INCDIR=/usr/include"
hostmakedepends="groff perl python3 zlib-devel libffi-devel swig python3-Sphinx
 python3-recommonmark python3-sphinx-automodapi"
makedepends="python3-devel zlib-devel elfutils-devel libffi-devel libedit-devel
 libxml2-devel binutils-devel libatomic-devel"
depends="libllvm12>=${version}_${revision}"
short_desc="Low Level Virtual Machine"
maintainer="q66 <daniel@octaforge.org>"
license="Apache-2.0"
homepage="https://www.llvm.org"
distfiles="
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/llvm-${version}.src.tar.xz
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/lldb-${version}.src.tar.xz
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/lld-${version}.src.tar.xz
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/clang-${version}.src.tar.xz
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/clang-tools-extra-${version}.src.tar.xz
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/compiler-rt-${version}.src.tar.xz
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/libunwind-${version}.src.tar.xz
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/libcxx-${version}.src.tar.xz
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/libcxxabi-${version}.src.tar.xz
 https://github.com/llvm/llvm-project/releases/download/llvmorg-${version}/openmp-${version}.src.tar.xz"
checksum="
 49dc47c8697a1a0abd4ee51629a696d7bfe803662f2a7252a3b16fc75f3a8b50
 14bcc0f55644df1a50ae9830e1f1751a7b3f633fb8605ee50e685a3db0c705ed
 2cb7d497f3ce33ce8a2c50ad26ec93a8c45f57268d4d96953cd0f25566f753fd
 e26e452e91d4542da3ebbf404f024d3e1cbf103f4cd110c26bf0a19621cca9ed
 ad41e0b527a65ade95c1ba690a5434cefaab4a2daa1be307caaa1e8541fe6d5c
 85a8cd0a62413eaa0457d8d02f8edac38c4dc0c96c00b09dc550260c23268434
 9ed2a5b28853f7f58be9d04836ff43d6e4132df5a2c058b690dc3e9d75bd1cf5
 7dcb75ca4f6aae2c677d128460c48a57398c8b6791b77b74bea7cf9e04e7c3f1
 6ab8e8cd148a7d5103067e05c36e36ef36e27634fc8e73b5712853c9affe75b1
 eb1b7022a247332114985ed155a8fb632c28ce7c35a476e2c0caf865150f167d"
lib32disabled=yes
python_version=3

if [ "$XBPS_TARGET_LIBC" = "musl" ]; then
	configure_args+=" -DLIBCXX_HAS_MUSL_LIBC=YES"
	makedepends+=" libexecinfo-devel"
	depends+=" libexecinfo-devel"
fi

# "operand out of range" assembler failures
case "$XBPS_TARGET_MACHINE" in
	ppc64*) ;;
	ppc*) configure_args+=" -DCLANG_ENABLE_CLANGD=OFF" ;;
esac

_lldb_enable=yes
_libomp_enable=no

case "$XBPS_TARGET_MACHINE" in
	ppc64le*) ;;
	ppc*|i686*) _lldb_enable=no ;;
esac

case "$XBPS_TARGET_MACHINE" in
	x86_64*|aarch64*|ppc64*) _libomp_enable=yes;;
esac

subpackages="clang-tools-extra"

# must go before clang
if [ "$_libomp_enable" = "yes" ]; then
	subpackages+=" libomp libomp-devel"
	# because of cmake nonsense referencing libomptarget.so.*
	depends+=" libomp>=${version}_${revision}"
fi

subpackages+=" clang clang-analyzer libclang libclang-cpp
 llvm-libunwind llvm-libunwind-devel libcxx libcxx-devel
 libcxxabi libcxxabi-devel libllvm12"

if [ "$_lldb_enable" = "yes" ]; then
	# XXX fails to cross compile due to python
	subpackages+=" lldb lldb-devel"
fi

subpackages+=" lld lld-devel"

post_patch() {
	# patches
	cd ${XBPS_BUILDDIR}/llvm-${version}.src
	for i in ${FILESDIR}/patches/llvm/llvm-*.patch; do
		msg_normal "Applying $i to llvm\n"
		patch -sNp1 -i ${i}
	done

	cd ${XBPS_BUILDDIR}/clang-${version}.src
	for i in ${FILESDIR}/patches/clang/clang-*.patch; do
		msg_normal "Applying $i to clang\n"
		patch -sNp1 -i ${i}
	done

	cd ${XBPS_BUILDDIR}/compiler-rt-${version}.src
	for i in ${FILESDIR}/patches/compiler-rt/compiler-rt-*.patch; do
		msg_normal "Applying $i to compiler-rt\n"
		patch -sNp1 -i ${i}
	done

	cd ${XBPS_BUILDDIR}/libunwind-${version}.src
	for i in ${FILESDIR}/patches/libunwind/libunwind-*.patch; do
		msg_normal "Applying $i to libunwind\n"
		patch -sNp1 -i ${i}
	done

	cd ${XBPS_BUILDDIR}/libcxx-${version}.src
	for i in ${FILESDIR}/patches/libcxx/libcxx-*.patch; do
		msg_normal "Applying $i to libcxx\n"
		patch -sNp1 -i ${i}
	done

	if [ "$_lldb_enable" = "yes" ]; then
		cd ${XBPS_BUILDDIR}/lldb-${version}.src
		for i in ${FILESDIR}/patches/lldb/*.patch; do
			msg_normal "Applying $i to lldb\n"
			patch -sNp1 -i ${i}
		done
		if [ "$XBPS_TARGET_LIBC" = "musl" ]; then
			vsed -i 's|__ptrace_request|int|g' \
				source/Plugins/Process/Linux/NativeProcessLinux.cpp
		fi
	fi

	# Move clang files into the llvm source.
	if [ -d ${XBPS_BUILDDIR}/clang-${version}.src ]; then
		mv ${XBPS_BUILDDIR}/clang-${version}.src ${wrksrc}/tools/clang
	fi
	# Move clang-tools-extra files into llvm source.
	if [ -d ${XBPS_BUILDDIR}/clang-tools-extra-${version}.src ]; then
		mv ${XBPS_BUILDDIR}/clang-tools-extra-${version}.src \
			${wrksrc}/tools/clang/tools/extra
	fi
	# Move lld files into the llvm source.
	if [ -d ${XBPS_BUILDDIR}/lld-${version}.src ]; then
		mv ${XBPS_BUILDDIR}/lld-${version}.src ${wrksrc}/tools/lld
		# https://bugs.llvm.org/show_bug.cgi?id=49228
		mkdir -p ${wrksrc}/tools/lld/include/mach-o
		cp ${XBPS_BUILDDIR}/libunwind-${version}.src/include/mach-o/compact_unwind_encoding.h \
			${wrksrc}/tools/lld/include/mach-o
	fi
	# Move lldb files into the llvm source.
	if [ -d ${XBPS_BUILDDIR}/lldb-${version}.src ]; then
		if [ "$_lldb_enable" = "yes" ]; then
			mv ${XBPS_BUILDDIR}/lldb-${version}.src ${wrksrc}/tools/lldb
			# disable docs for lldb as they fail to generate
			vsed -i '/add_subdirectory(docs)/d' \
				${wrksrc}/tools/lldb/CMakeLists.txt
		else
			rm -rf ${XBPS_BUILDDIR}/lldb-${version}.src
		fi
	fi
	# Move compiler-rt files into the llvm source.
	if [ -d ${XBPS_BUILDDIR}/compiler-rt-${version}.src ]; then
		mv ${XBPS_BUILDDIR}/compiler-rt-${version}.src \
			${wrksrc}/projects/compiler-rt
	fi
	# Move libunwind files into the llvm source.
	if [ -d ${XBPS_BUILDDIR}/libunwind-${version}.src ]; then
		mv ${XBPS_BUILDDIR}/libunwind-${version}.src \
			${wrksrc}/projects/libunwind
	fi
	# Move libcxx files into the llvm source.
	if [ -d ${XBPS_BUILDDIR}/libcxx-${version}.src ]; then
		mv ${XBPS_BUILDDIR}/libcxx-${version}.src \
			${wrksrc}/projects/libcxx
	fi
	# Move libcxxabi files into the llvm source.
	if [ -d ${XBPS_BUILDDIR}/libcxxabi-${version}.src ]; then
		mv ${XBPS_BUILDDIR}/libcxxabi-${version}.src \
			${wrksrc}/projects/libcxxabi
	fi
	# Move openmp files into the llvm source.
	if [ -d ${XBPS_BUILDDIR}/openmp-${version}.src ]; then
		if [ "$_libomp_enable" = "yes" ]; then
			mv ${XBPS_BUILDDIR}/openmp-${version}.src \
				${wrksrc}/projects/openmp
		else
			rm -rf ${XBPS_BUILDDIR}/openmp-${version}.src
		fi
	fi

	# fix early build failure
	vsed -e "/set(model_compiler/s:\${CMAKE_SOURCE_DIR}/\.\./clang-tools-extra/:\${CMAKE_SOURCE_DIR}/tools/clang/tools/extra/:" \
		-i ${wrksrc}/tools/clang/tools/extra/clangd/quality/CompletionModel.cmake

	# update config.guess for better platform detection
	cp $XBPS_COMMONDIR/environment/configure/automake/config.guess \
		${wrksrc}/cmake

	# fix linker failures on some archs
	case "$XBPS_TARGET_MACHINE" in
		ppc64*) ;;
		aarch64*|ppc*|i686*)
			vsed -i 's,check_library_exists(gcc_s .*,set(LIBCXXABI_HAS_GCC_S_LIB ON),' \
				${wrksrc}/projects/libcxxabi/cmake/config-ix.cmake
			vsed -i 's,check_library_exists(gcc .*,set(LIBCXXABI_HAS_GCC_LIB ON),' \
				${wrksrc}/projects/libcxxabi/cmake/config-ix.cmake
			;;
	esac

	# need libssp_nonshared on some musl platforms (because of nodefaultlibs)
	case "$XBPS_TARGET_MACHINE" in
		ppc64*) ;;
		ppc*-musl|i686-musl|mips*-musl)
			vsed -i 's,^# Setup flags.$,add_library_flags(ssp_nonshared),' \
				${wrksrc}/projects/libunwind/src/CMakeLists.txt
			vsed -i 's,^# Setup flags.$,add_library_flags(ssp_nonshared),' \
				${wrksrc}/projects/libcxxabi/src/CMakeLists.txt
			vsed -i 's,#ssp,,' ${wrksrc}/projects/libcxx/CMakeLists.txt
			;;
	esac

	case "$XBPS_TARGET_MACHINE" in
		x86_64-musl) # some sanitizer currently only on x86_64 stuff needs backtrace
			vsed -i 's,# Set common link flags.,list(APPEND SANITIZER_COMMON_LINK_LIBS execinfo),' \
				${wrksrc}/projects/compiler-rt/CMakeLists.txt
			;;
		arm*-musl) # sanitizer code is broken on arm*-musl since it duplicates some libc bits
			vsed -i 's/set(COMPILER_RT_HAS_SANITIZER_COMMON TRUE)/set(COMPILER_RT_HAS_SANITIZER_COMMON FALSE)/' \
				${wrksrc}/projects/compiler-rt/cmake/config-ix.cmake
			;;
	esac
}

pre_configure() {
	# Vastly reduce size of debugging symbols:
	CFLAGS=${CFLAGS/ -g/ -g1}
	CXXFLAGS=${CXXFLAGS/ -g/ -g1}

	# since gcc9, the build likes to blow up for ppc32 apparently because
	# of clang being too large for a 24-bit relative call to the PLT, so
	# optimize for size instead
	case "$XBPS_TARGET_MACHINE" in
		ppc64*) ;;
		mips*-musl|ppc*) configure_args+=" -DVOID_CXX_OPT_FLAGS=-Os" ;;
	esac

	if [ "$CROSS_BUILD" ]; then
		msg_normal "Building host tblgen\n"
		mkdir -p build/HOST
		cd build/HOST
		CC="$BUILD_CC" CXX="$BUILD_CXX" CFLAGS="$BUILD_CFLAGS" \
			CXXFLAGS="$BUILD_CXXFLAGS" LDFLAGS="$BUILD_LDFLAGS" \
			cmake ../.. -DCMAKE_BUILD_TYPE=Release
		make ${makejobs} -C utils/TableGen
		make ${makejobs} -C tools/clang/utils/TableGen
		[ "$_lldb_enable" = "yes" ] && make ${makejobs} -C tools/lldb/utils/TableGen
		configure_args+=" -DLLVM_TABLEGEN=${wrksrc}/build/HOST/bin/llvm-tblgen"
		configure_args+=" -DCLANG_TABLEGEN=${wrksrc}/build/HOST/bin/clang-tblgen"
		[ "$_lldb_enable" = "yes" ] && configure_args+=" -DLLDB_TABLEGEN=${wrksrc}/build/HOST/bin/lldb-tblgen"
		cd ../..
	fi

	case "$XBPS_TARGET_MACHINE" in
		i686*) _arch="X86";;
		x86_64*) _arch="X86";;
		armv5*) _arch="Armv5te";;
		armv6*) _arch="Armv6";;
		armv7*) _arch="Armv7";;
		aarch64*) _arch="AArch64";;
		mips*) _arch="Mips";;
		ppc*) _arch="PowerPC";;
	esac
	configure_args+=" -DLLVM_TARGET_ARCH=${_arch}"
	configure_args+=" -DLLVM_HOST_TRIPLE=${XBPS_CROSS_TRIPLET:-$XBPS_TRIPLET}"
	configure_args+=" -DLLVM_DEFAULT_TARGET_TRIPLE=${XBPS_CROSS_TRIPLET:-$XBPS_TRIPLET}"
}

do_install() {
	cd build
	cmake -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr -P cmake_install.cmake

	# Required for multilib.
	if [ "$XBPS_TARGET_MACHINE" = "x86_64" ]; then
		for _header in llvm-config; do
			mv ${DESTDIR}/usr/include/llvm/Config/${_header}{,-64}.h
			vinstall ${FILESDIR}/llvm-Config-${_header}.h 644 \
				usr/include/llvm/Config ${_header}.h
		done
	fi

	# Remove llvm-config-host in cross builds.
	if [ "$CROSS_BUILD" ]; then
		rm -f ${DESTDIR}/usr/bin/llvm-config-host
	fi

	# Install libcxxabi headers
	vinstall ${wrksrc}/projects/libcxxabi/include/__cxxabi_config.h 644 usr/include
	vinstall ${wrksrc}/projects/libcxxabi/include/cxxabi.h 644 usr/include

	# Install libunwind headers
	vinstall ${wrksrc}/projects/libunwind/include/__libunwind_config.h 644 usr/include
	vinstall ${wrksrc}/projects/libunwind/include/libunwind.h 644 usr/include
	vinstall ${wrksrc}/projects/libunwind/include/unwind.h 644 usr/include
}

clang-analyzer_package() {
	pycompile_dirs="usr/share/scan-view"
	depends="clang-${version}_${revision} python3"
	short_desc+=" - A source code analysis framework"
	homepage="https://clang-analyzer.llvm.org/"
	pkg_install() {
		vmove usr/share/man/man1/scan-build.1
		vmove "/usr/bin/scan-*"
		vmove "/usr/share/scan-*"
		vmove "/usr/libexec/*analyzer"
	}
}

clang-tools-extra_package() {
	lib32disabled=yes
	depends="clang-${version}_${revision} python3"
	short_desc+=" - Extra Clang tools"
	homepage="https://clang.llvm.org/extra/"
	pkg_install() {
		vmove usr/include/clang-tidy
		vmove usr/bin/clang-apply-replacements
		vmove usr/bin/clang-query
		vmove usr/bin/clang-rename
		vmove usr/bin/clang-tidy
		vmove usr/bin/diagtool
		vmove usr/bin/find-all-symbols
		vmove usr/bin/hmaptool
		vmove usr/bin/modularize
		vmove usr/bin/pp-trace
		vmove usr/bin/sancov
		vmove "usr/lib/libclangApplyReplacements*"
		vmove "usr/lib/libclangQuery*"
		vmove "usr/lib/libclangTidy*"
		vmove "usr/share/clang/*tidy*"
		vmove usr/share/doc/clang-tools
		vmove usr/share/man/man1/extraclangtools.1
		vmove usr/share/man/man1/diagtool.1
	}
}

clang_package() {
	lib32disabled=yes
	depends="libstdc++-devel libgcc-devel  binutils ${XBPS_TARGET_LIBC}-devel
	 libclang-${version}_${revision}"
	short_desc+=" - C language family frontend"
	homepage="https://clang.llvm.org/"
	pkg_install() {
		vmove usr/include/clang
		vmove usr/include/clang-c
		vmove "usr/bin/*clang*"
		vmove usr/bin/c-index-test
		vmove usr/lib/clang
		vmove usr/lib/cmake/clang
		vmove "usr/lib/libclang*.a"
		vmove "usr/lib/libclang*.so"
		vmove usr/share/clang
		vmove usr/share/doc/clang
		vmove usr/share/man/man1/clang.1
	}
}

libclang_package() {
	short_desc+=" - C frontend runtime library"
	pkg_install() {
		vmove "usr/lib/libclang.so.*"
	}
}

libclang-cpp_package() {
	short_desc+=" - C frontend runtime library (C++ interface)"
	pkg_install() {
		vmove "usr/lib/libclang-cpp.so.*"
	}
}

lld_package() {
	lib32disabled=yes
	short_desc+=" - linker"
	homepage="https://lld.llvm.org"
	pkg_install() {
		vmove usr/bin/lld*
		vmove usr/bin/wasm-ld
		vmove usr/bin/ld.lld*
		vmove usr/bin/ld64.lld*
		vmove usr/share/doc/lld
	}
}

lld-devel_package() {
	lib32disabled=yes
	short_desc+=" - linker - development files"
	homepage="https://lld.llvm.org"
	depends="lld>=${version}_${revision}"
	pkg_install() {
		vmove usr/include/lld
		vmove usr/lib/cmake/lld
		vmove "usr/lib/liblld*a"
	}
}

lldb_package() {
	lib32disabled=yes
	depends+=" python3-six"
	short_desc+=" - LLDB debugger"
	homepage="https://lldb.llvm.org/"
	pkg_install() {
		vmove usr/bin/*lldb*
		vmove usr/lib/liblldb*so.*
		vmove /usr/lib/python*
	}
}

lldb-devel_package() {
	lib32disabled=yes
	depends="lldb>=${version}_${revision}"
	short_desc+=" - LLDB debugger - development files"
	pkg_install() {
		vmove usr/include/lldb
		vmove "usr/lib/liblldb*.so"
	}
}

llvm-libunwind_package() {
	short_desc+=" - libunwind"
	pkg_install() {
		vmove "usr/lib/libunwind.so.*"
	}
}

llvm-libunwind-devel_package() {
	short_desc+=" - libunwind - development files"
	depends="llvm-libunwind>=${version}_${revision}"
	conflicts="libunwind-devel>=0"
	pkg_install() {
		vmove usr/lib/libunwind.so
		vmove usr/lib/libunwind.a
		vmove "usr/include/*unwind*"
		vmove usr/include/mach-o
		vmove usr/share/doc/libunwind
	}
}

libcxxabi_package() {
	short_desc+=" - low level support for libc++"
	pkg_install() {
		vmove "usr/lib/libc++abi.so.*"
	}
}

libcxxabi-devel_package() {
	short_desc+=" - low level support for libc++ - development files"
	depends="libcxxabi>=${version}_${revision}"
	pkg_install() {
		vmove usr/lib/libc++abi.so
		vmove usr/lib/libc++abi.a
		vmove "usr/include/*cxxabi*"
	}
}

libcxx_package() {
	short_desc+=" - C++ standard library"
	pkg_install() {
		vmove "usr/lib/libc++.so.*"
	}
}

libcxx-devel_package() {
	short_desc+=" - C++ standard library - development files"
	depends="libcxx>=${version}_${revision}"
	pkg_install() {
		vmove usr/lib/libc++.so
		vmove usr/lib/libc++.a
		vmove usr/lib/libc++experimental.a
		vmove usr/include/c++
		vmove usr/share/doc/libcxx
	}
}

libomp_package() {
	short_desc+=" - Clang OpenMP support library"
	pkg_install() {
		vmove usr/lib/libomp.so
		vmove "usr/lib/libomptarget.rtl.*.so"
		vmove usr/lib/libarcher.so
		vmove "usr/lib/libomp*.so.*"
	}
}

libomp-devel_package() {
	short_desc+=" - Clang OpenMP support library - development files"
	depends="libomp>=${version}_${revision}"
	pkg_install() {
		vmove "usr/lib/libomp*.so"
		vmove "usr/lib/libarcher*"
		vmove "usr/include/omp*.h"
		vmove "usr/lib/clang/${version}/include/omp*.h"
		vmove usr/share/man/man1/llvmopenmp.1
		vmove usr/share/doc/openmp
	}
}

libllvm12_package() {
	short_desc+=" - runtime library"
	pkg_install() {
		vmove "usr/lib/libLLVM-*.so*"
	}
}