gentoo-overlay/sys-devel/llvm/llvm-9999.ebuild

# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-devel/llvm/llvm-9999.ebuild,v 1.63 2013/12/19 11:08:15 mgorny Exp $

EAPI=5

PYTHON_COMPAT=( python{2_5,2_6,2_7} pypy{1_9,2_0} )

inherit eutils flag-o-matic git-r3 multilib multilib-minimal \
	python-r1 toolchain-funcs pax-utils check-reqs

DESCRIPTION="Low Level Virtual Machine"
HOMEPAGE="http://llvm.org/"
SRC_URI=""
EGIT_REPO_URI="http://llvm.org/git/llvm.git
	https://github.com/llvm-mirror/llvm.git"

LICENSE="UoI-NCSA"
SLOT="0/${PV}"
KEYWORDS=""
IUSE="clang debug doc gold +libffi multitarget ncurses ocaml python
	+static-analyzer test udis86 video_cards_radeon kernel_Darwin"

COMMON_DEPEND="
	sys-libs/zlib:0=
	clang? (
		python? ( ${PYTHON_DEPS} )
		static-analyzer? (
			dev-lang/perl
			${PYTHON_DEPS}
		)
	)
	gold? ( >=sys-devel/binutils-2.22[cxx] )
	libffi? ( virtual/libffi:0=[${MULTILIB_USEDEP}] )
	ncurses? ( sys-libs/ncurses:5=[${MULTILIB_USEDEP}] )
	ocaml? ( dev-lang/ocaml )
	udis86? ( dev-libs/udis86:0=[pic(+),${MULTILIB_USEDEP}] )"
DEPEND="${COMMON_DEPEND}
	dev-lang/perl
	dev-python/sphinx
	>=sys-devel/make-3.81
	>=sys-devel/flex-2.5.4
	>=sys-devel/bison-1.875d
	|| ( >=sys-devel/gcc-3.0 >=sys-devel/gcc-apple-4.2.1
		( >=sys-freebsd/freebsd-lib-9.1-r10 sys-libs/libcxx )
	)
	|| ( >=sys-devel/binutils-2.18 >=sys-devel/binutils-apple-3.2.3 )
	!kernel_Darwin? ( app-admin/chrpath )
	libffi? ( virtual/pkgconfig )
	${PYTHON_DEPS}"
RDEPEND="${COMMON_DEPEND}
	clang? ( !<=sys-devel/clang-9999-r99 )
	abi_x86_32? ( !<=app-emulation/emul-linux-x86-baselibs-20130224-r2
		!app-emulation/emul-linux-x86-baselibs[-abi_x86_32(-)] )"

# pypy gives me around 1700 unresolved tests due to open file limit
# being exceeded. probably GC does not close them fast enough.
REQUIRED_USE="${PYTHON_REQUIRED_USE}
	test? ( || ( $(python_gen_useflags 'python*') ) )"

pkg_pretend() {
	# in megs
	# !clang !debug !multitarget -O2       400
	# !clang !debug  multitarget -O2       550
	#  clang !debug !multitarget -O2       950
	#  clang !debug  multitarget -O2      1200
	# !clang  debug  multitarget -O2      5G
	#  clang !debug  multitarget -O0 -g  12G
	#  clang  debug  multitarget -O2     16G
	#  clang  debug  multitarget -O0 -g  14G

	local build_size=550
	use clang && build_size=1200

	if use debug; then
		ewarn "USE=debug is known to increase the size of package considerably"
		ewarn "and cause the tests to fail."
		ewarn

		(( build_size *= 14 ))
	elif is-flagq -g || is-flagq -ggdb; then
		ewarn "The C++ compiler -g option is known to increase the size of the package"
		ewarn "considerably. If you run out of space, please consider removing it."
		ewarn

		(( build_size *= 10 ))
	fi

	# Multiply by number of ABIs :).
	local abis=( $(multilib_get_enabled_abis) )
	(( build_size *= ${#abis[@]} ))

	local CHECKREQS_DISK_BUILD=${build_size}M
	check-reqs_pkg_pretend
}

pkg_setup() {
	pkg_pretend

	# need to check if the active compiler is ok

	broken_gcc=" 3.2.2 3.2.3 3.3.2 4.1.1 "
	broken_gcc_x86=" 3.4.0 3.4.2 "
	broken_gcc_amd64=" 3.4.6 "

	gcc_vers=$(gcc-fullversion)

	if [[ ${broken_gcc} == *" ${version} "* ]] ; then
		elog "Your version of gcc is known to miscompile llvm."
		elog "Check http://www.llvm.org/docs/GettingStarted.html for"
		elog "possible solutions."
		die "Your currently active version of gcc is known to miscompile llvm"
	fi

	if [[ ${CHOST} == i*86-* && ${broken_gcc_x86} == *" ${version} "* ]] ; then
		elog "Your version of gcc is known to miscompile llvm on x86"
		elog "architectures.  Check"
		elog "http://www.llvm.org/docs/GettingStarted.html for possible"
		elog "solutions."
		die "Your currently active version of gcc is known to miscompile llvm"
	fi

	if [[ ${CHOST} == x86_64-* && ${broken_gcc_amd64} == *" ${version} "* ]];
	then
		elog "Your version of gcc is known to miscompile llvm in amd64"
		elog "architectures.  Check"
		elog "http://www.llvm.org/docs/GettingStarted.html for possible"
		elog "solutions."
		die "Your currently active version of gcc is known to miscompile llvm"
	fi
}

src_unpack() {
	if use clang; then
		git-r3_fetch "http://llvm.org/git/compiler-rt.git
			https://github.com/llvm-mirror/compiler-rt.git"
		git-r3_fetch "http://llvm.org/git/clang.git
			https://github.com/llvm-mirror/clang.git"
	fi
	git-r3_fetch

	if use clang; then
		git-r3_checkout http://llvm.org/git/compiler-rt.git \
			"${S}"/projects/compiler-rt
		git-r3_checkout http://llvm.org/git/clang.git \
			"${S}"/tools/clang
	fi
	git-r3_checkout
}

src_prepare() {
	epatch "${FILESDIR}"/${PN}-3.2-nodoctargz.patch
	epatch "${FILESDIR}"/${PN}-3.4-gentoo-install.patch
	use clang && epatch "${FILESDIR}"/clang-3.5-gentoo-install.patch

	local sub_files=(
		Makefile.config.in
		Makefile.rules
		tools/llvm-config/llvm-config.cpp
	)
	use clang && sub_files+=(
		tools/clang/lib/Driver/Tools.cpp
		tools/clang/tools/scan-build/scan-build
	)

	# unfortunately ./configure won't listen to --mandir and the-like, so take
	# care of this.
	# note: we're setting the main libdir intentionally.
	# where per-ABI is appropriate, we use $(GENTOO_LIBDIR) make.
	einfo "Fixing install dirs"
	sed -e "s,@libdir@,$(get_libdir),g" \
		-e "s,@PF@,${PF},g" \
		-e "s,@EPREFIX@,${EPREFIX},g" \
		-i "${sub_files[@]}" \
		|| die "install paths sed failed"

	# User patches
	epatch_user
}

multilib_src_configure() {
	# disable timestamps since they confuse ccache
	local conf_flags=(
		--disable-timestamps
		--enable-keep-symbols
		--enable-shared
		--with-optimize-option=
		$(use_enable !debug optimized)
		$(use_enable debug assertions)
		$(use_enable debug expensive-checks)
		$(use_enable ncurses terminfo)
		$(use_enable libffi)
	)

	if use clang; then
		conf_flags+=( --with-clang-resource-dir=../lib/clang/3.5 )
	fi

	local targets bindings
	if use multitarget; then
		targets='all'
	else
		targets='host,cpp'
		use video_cards_radeon && targets+=',r600'
	fi
	conf_flags+=( --enable-targets=${targets} )

	if multilib_build_binaries; then
		use gold && conf_flags+=( --with-binutils-include="${EPREFIX}"/usr/include/ )
		# extra commas don't hurt
		use ocaml && bindings+=',ocaml'
	fi

	[[ ${bindings} ]] || bindings='none'
	conf_flags+=( --enable-bindings=${bindings} )

	if use udis86; then
		conf_flags+=( --with-udis86 )
	fi

	if use libffi; then
		local CPPFLAGS=${CPPFLAGS}
		append-cppflags "$(pkg-config --cflags libffi)"
	fi

	# build with a suitable Python version
	python_export_best

	# llvm prefers clang over gcc, so we may need to force that
	tc-export CC CXX

	ECONF_SOURCE=${S} \
	econf "${conf_flags[@]}"
}

set_makeargs() {
	MAKEARGS=(
		VERBOSE=1
		REQUIRES_RTTI=1
		GENTOO_LIBDIR=$(get_libdir)
	)

	if ! multilib_build_binaries; then
		local tools=( llvm-config )
		use clang && tools+=( clang )
		use test && tools+=(
			llc llvm-objdump llvm-readobj llvm-dwarfdump llvm-rtdyld llvm-cov
			yaml2obj obj2yaml opt llvm-mcmarkup bugpoint llvm-c-test bugpoint-passes
			llvm-as llvm-dis llvm-nm llvm-bcanalyzer llvm-mc macho-dump llvm-ar
			llvm-extract lli llvm-link llvm-lto
		)

		MAKEARGS+=(
			ONLY_TOOLS="${tools[*]}"
		)
	fi
}

multilib_src_compile() {
	local MAKEARGS
	set_makeargs

	emake "${MAKEARGS[@]}"

	if multilib_build_binaries; then
		emake -C "${S}"/docs -f Makefile.sphinx man
		use doc && emake -C "${S}"/docs -f Makefile.sphinx html
	fi

	if use debug; then
		pax-mark m Debug+Asserts+Checks/bin/llvm-rtdyld
		pax-mark m Debug+Asserts+Checks/bin/lli
	else
		pax-mark m Release/bin/llvm-rtdyld
		pax-mark m Release/bin/lli
	fi
	if use test; then
		pax-mark m unittests/ExecutionEngine/JIT/Release/JITTests
		pax-mark m unittests/ExecutionEngine/MCJIT/Release/MCJITTests
		pax-mark m unittests/Support/Release/SupportTests
	fi
}

multilib_src_test() {
	local MAKEARGS
	set_makeargs

	emake "${MAKEARGS[@]}" check

	use clang && emake "${MAKEARGS[@]}" -C tools/clang test
}

src_install() {
	local MULTILIB_WRAPPED_HEADERS=(
		/usr/include/llvm/Config/config.h
		/usr/include/llvm/Config/llvm-config.h
	)

	use clang && MULTILIB_WRAPPED_HEADERS+=(
		/usr/include/clang/Config/config.h
	)

	multilib-minimal_src_install
}

multilib_src_install() {
	local MAKEARGS
	set_makeargs

	emake "${MAKEARGS[@]}" DESTDIR="${D}" install

	if multilib_build_binaries; then
		# Move files back.
		if path_exists -o "${ED}"/tmp/llvm-config.*; then
			mv "${ED}"/tmp/llvm-config.* "${ED}"/usr/bin || die
		fi
	else
		# Preserve ABI-variant of llvm-config,
		# then drop all the executables since LLVM doesn't like to
		# clobber when installing.
		mkdir -p "${ED}"/tmp || die
		mv "${ED}"/usr/bin/llvm-config "${ED}"/tmp/llvm-config.${ABI} || die
		rm -r "${ED}"/usr/bin || die
	fi

	# Fix install_names on Darwin.  The build system is too complicated
	# to just fix this, so we correct it post-install
	local lib= f= odylib= libpv=${PV}
	if [[ ${CHOST} == *-darwin* ]] ; then
		eval $(grep PACKAGE_VERSION= configure)
		[[ -n ${PACKAGE_VERSION} ]] && libpv=${PACKAGE_VERSION}
		for lib in lib{EnhancedDisassembly,LLVM-${libpv},LTO,profile_rt,clang}.dylib {BugpointPasses,LLVMHello}.dylib ; do
			# libEnhancedDisassembly is Darwin10 only, so non-fatal
			# + omit clang libs if not enabled
			[[ -f ${ED}/usr/lib/${lib} ]] || continue

			ebegin "fixing install_name of $lib"
			install_name_tool \
				-id "${EPREFIX}"/usr/lib/${lib} \
				"${ED}"/usr/lib/${lib}
			eend $?
		done
		for f in "${ED}"/usr/bin/* "${ED}"/usr/lib/lib{LTO,clang}.dylib ; do
			# omit clang libs if not enabled
			[[ -f ${ED}/usr/lib/${lib} ]] || continue

			odylib=$(scanmacho -BF'%n#f' "${f}" | tr ',' '\n' | grep libLLVM-${libpv}.dylib)
			ebegin "fixing install_name reference to ${odylib} of ${f##*/}"
			install_name_tool \
				-change "${odylib}" \
					"${EPREFIX}"/usr/lib/libLLVM-${libpv}.dylib \
				-change "@rpath/libclang.dylib" \
					"${EPREFIX}"/usr/lib/libclang.dylib \
				-change "${S}"/Release/lib/libclang.dylib \
					"${EPREFIX}"/usr/lib/libclang.dylib \
				"${f}"
			eend $?
		done
	fi
}

multilib_src_install_all() {
	doman docs/_build/man/*.1
	use doc && dohtml -r docs/_build/html/

	insinto /usr/share/vim/vimfiles/syntax
	doins utils/vim/*.vim

	if use clang; then
		cd tools/clang || die

		if use static-analyzer ; then
			dobin tools/scan-build/ccc-analyzer
			dosym ccc-analyzer /usr/bin/c++-analyzer
			dobin tools/scan-build/scan-build

			insinto /usr/share/${PN}
			doins tools/scan-build/scanview.css
			doins tools/scan-build/sorttable.js
		fi

		python_inst() {
			if use static-analyzer ; then
				pushd tools/scan-view >/dev/null || die

				python_doscript scan-view

				touch __init__.py || die
				python_moduleinto clang
				python_domodule __init__.py Reporter.py Resources ScanView.py startfile.py

				popd >/dev/null || die
			fi

			if use python ; then
				pushd bindings/python/clang >/dev/null || die

				python_moduleinto clang
				python_domodule __init__.py cindex.py enumerations.py

				popd >/dev/null || die
			fi

			# AddressSanitizer symbolizer (currently separate)
			python_doscript "${S}"/projects/compiler-rt/lib/asan/scripts/asan_symbolize.py
		}
		python_foreach_impl python_inst
	fi
}