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# Copyright 1999-2021 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=7
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PYTHON_COMPAT=( python3_{8,9,10} )
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LLVM_MAX_SLOT=13
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inherit toolchain-funcs llvm optfeature python-single-r1
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DESCRIPTION="A fork of AFL, the popular compile-time instrumentation fuzzer"
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HOMEPAGE="https://github.com/AFLplusplus/AFLplusplus"
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SRC_URI="https://github.com/AFLplusplus/AFLplusplus/archive/${PV}.tar.gz -> ${P}.tar.gz"
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S="${WORKDIR}/AFLplusplus-${PV}"
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LICENSE="Apache-2.0"
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SLOT="0"
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KEYWORDS="amd64 ~arm64"
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IUSE="test"
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REQUIRED_USE="${PYTHON_REQUIRED_USE}"
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# Tests involve heavy use of LD_PRELOAD in some cases
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# This isn't compatible with sandbox
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RESTRICT="test"
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# It turns out we need Clang too
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RDEPEND="
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${PYTHON_DEPS}
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>=sys-devel/llvm-10:=
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|| (
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sys-devel/clang:10
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sys-devel/clang:11
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sys-devel/clang:12
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sys-devel/clang:13
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)
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!app-forensics/afl
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"
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DEPEND="
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${RDEPEND}
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test? ( dev-util/cmocka )
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"
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QA_PREBUILT="/usr/share/afl/testcases/others/elf/small_exec.elf"
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PATCHES=(
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"${FILESDIR}/${PN}-3.0c-LDFLAGS.patch"
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"${FILESDIR}/${PN}-3.13c-CFLAGS.patch"
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)
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llvm_check_deps() {
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has_version -b "sys-devel/clang:${LLVM_SLOT}" && \
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has_version -b "sys-devel/llvm:${LLVM_SLOT}"
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}
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pkg_setup() {
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llvm_pkg_setup
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python-single-r1_pkg_setup
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}
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src_prepare() {
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default
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sed -i -e 's/-O3 -fno-unroll-loops//' GNUmakefile || die
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}
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src_compile() {
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emake \
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CC="$(tc-getCC)" \
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CXX="$(tc-getCXX)" \
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CFLAGS_FLTO="" \
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PREFIX="${EPREFIX}/usr" \
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HELPER_PATH="${EPREFIX}/usr/$(get_libdir)/afl" \
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DOC_PATH="${EPREFIX}/usr/share/doc/${PF}" \
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MAN_PATH="${EPREFIX}/usr/share/man/man8"
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}
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src_test() {
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emake \
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CC="$(tc-getCC)" \
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CXX="$(tc-getCXX)"
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}
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src_install() {
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emake \
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CC="$(tc-getCC)" \
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CXX="$(tc-getCXX)" \
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DESTDIR="${D}" \
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PREFIX="${EPREFIX}/usr" \
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HELPER_PATH="${EPREFIX}/usr/$(get_libdir)/afl" \
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DOC_PATH="${EPREFIX}/usr/share/doc/${PF}" \
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MAN_PATH="${EPREFIX}/usr/share/man/man8" \
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install
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}
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pkg_postinst() {
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# TODO: Any others?
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optfeature "fuzzing with AFL_USE_ASAN" sys-libs/compiler-rt-sanitizers[asan]
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optfeature "fuzzing with AFL_USE_MSAN" sys-libs/compiler-rt-sanitizers[msan]
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}
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