From e0a2bdf2d3c341f08ed2a340f8e33ce83e834893 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
Date: Sat, 1 Oct 2016 18:45:23 +0200
Subject: [PATCH] sys-libs/compiler-rt-sanitizers: Introduce split ebuild

---
 .../compiler-rt-sanitizers-9999.ebuild        | 114 ++++++++++++++++++
 sys-libs/compiler-rt-sanitizers/metadata.xml  |   7 ++
 2 files changed, 121 insertions(+)
 create mode 100644 sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-9999.ebuild
 create mode 100644 sys-libs/compiler-rt-sanitizers/metadata.xml

diff --git a/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-9999.ebuild b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-9999.ebuild
new file mode 100644
index 000000000000..044c7b469f56
--- /dev/null
+++ b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-9999.ebuild
@@ -0,0 +1,114 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+CMAKE_MIN_VERSION=3.4.3
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-utils flag-o-matic git-r3 python-single-r1
+
+DESCRIPTION="Compiler runtime libraries for clang (sanitizers & xray)"
+HOMEPAGE="http://llvm.org/"
+SRC_URI=""
+EGIT_REPO_URI="http://llvm.org/git/compiler-rt.git
+	https://github.com/llvm-mirror/compiler-rt.git"
+
+LICENSE="UoI-NCSA"
+SLOT="0/${PV%.*}"
+KEYWORDS=""
+IUSE="test"
+
+RDEPEND="${PYTHON_DEPS}
+	!<sys-devel/llvm-${PV}"
+DEPEND="${RDEPEND}
+	~sys-devel/llvm-${PV}
+	test? ( ~sys-devel/clang-${PV}
+		~sys-libs/compiler-rt-${PV} )
+	${PYTHON_DEPS}"
+
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+
+src_unpack() {
+	if use test; then
+		# needed for patched gtest
+		git-r3_fetch "http://llvm.org/git/llvm.git
+			https://github.com/llvm-mirror/llvm.git"
+	fi
+	git-r3_fetch
+
+	if use test; then
+		git-r3_checkout http://llvm.org/git/llvm.git \
+			"${WORKDIR}"/llvm
+	fi
+	git-r3_checkout
+}
+
+src_configure() {
+	# pre-set since we need to pass it to cmake
+	BUILD_DIR=${WORKDIR}/${P}_build
+
+	local clang_version=4.0.0
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		# used to find cmake modules
+		-DLLVM_LIBDIR_SUFFIX="${libdir#lib}"
+		-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${clang_version}"
+		# use a build dir structure consistent with install
+		# this makes it possible to easily deploy test-friendly clang
+		-DCOMPILER_RT_OUTPUT_DIR="${BUILD_DIR}/lib/clang/${clang_version}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
+		# built-ins installed by sys-libs/compiler-rt
+		-DCOMPILER_RT_BUILD_BUILTINS=OFF
+		-DCOMPILER_RT_BUILD_SANITIZERS=ON
+		-DCOMPILER_RT_BUILD_XRAY=ON
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
+
+			# they are created during src_test()
+			-DCOMPILER_RT_TEST_COMPILER="${BUILD_DIR}/bin/clang"
+			-DCOMPILER_RT_TEST_CXX_COMPILER="${BUILD_DIR}/bin/clang++"
+		)
+
+		# same flags are passed for build & tests, so we need to strip
+		# them down to a subset supported by clang
+		filter-flags -msahf -frecord-gcc-switches
+	fi
+
+	cmake-utils_src_configure
+
+	if use test; then
+		local sys_dir=( "${EPREFIX}/usr/lib/clang/${clang_version}/lib"/* )
+		[[ -e ${sys_dir} ]] || die "Unable to find ${sys_dir}"
+		[[ ${#sys_dir[@]} -eq 1 ]] || die "Non-deterministic compiler-rt install: ${sys_dir[@]}"
+
+		# copy clang over since resource_dir is located relatively to binary
+		# therefore, we can put our new libraries in it
+		mkdir -p "${BUILD_DIR}"/{bin,lib/clang/"${clang_version}"/include} || die
+		cp "${EPREFIX}/usr/bin/clang" "${EPREFIX}/usr/bin/clang++" \
+			"${BUILD_DIR}"/bin/ || die
+		cp "${EPREFIX}/usr/lib/clang/${clang_version}/include"/*.h \
+			"${BUILD_DIR}/lib/clang/${clang_version}/include/" || die
+		cp "${sys_dir}"/*builtins*.a \
+			"${BUILD_DIR}/lib/clang/${clang_version}/lib/${sys_dir##*/}/" || die
+	fi
+}
+
+src_test() {
+	# sandbox breaks libasan tests... and is hard to kill
+	# so abuse the fail in its algorithms
+	local -x LD_PRELOAD=${LD_PRELOAD/libsandbox/nolibsandbox}
+
+	cmake-utils_src_make check-all
+}
+
+src_install() {
+	cmake-utils_src_install
+
+	python_doscript "${S}"/lib/asan/scripts/asan_symbolize.py
+}
diff --git a/sys-libs/compiler-rt-sanitizers/metadata.xml b/sys-libs/compiler-rt-sanitizers/metadata.xml
new file mode 100644
index 000000000000..89c4bdb96049
--- /dev/null
+++ b/sys-libs/compiler-rt-sanitizers/metadata.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>llvm@gentoo.org</email>
+	</maintainer>
+</pkgmetadata>
-- 
2.26.2