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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
PYTHON_COMPAT=( python3_{8,9,10} )
LLVM_MAX_SLOT=13
inherit toolchain-funcs llvm optfeature python-single-r1
DESCRIPTION="A fork of AFL, the popular compile-time instrumentation fuzzer"
HOMEPAGE="https://github.com/AFLplusplus/AFLplusplus"
SRC_URI="https://github.com/AFLplusplus/AFLplusplus/archive/${PV}.tar.gz -> ${P}.tar.gz"
S="${WORKDIR}/AFLplusplus-${PV}"
LICENSE="Apache-2.0"
SLOT="0"
KEYWORDS="amd64 arm64"
IUSE="test"
REQUIRED_USE="${PYTHON_REQUIRED_USE}"
# Tests involve heavy use of LD_PRELOAD in some cases
# This isn't compatible with sandbox
RESTRICT="test"
# It turns out we need Clang too
RDEPEND="
${PYTHON_DEPS}
>=sys-devel/llvm-10:=
|| (
sys-devel/clang:10
sys-devel/clang:11
sys-devel/clang:12
sys-devel/clang:13
)
!app-forensics/afl
"
DEPEND="
${RDEPEND}
test? ( dev-util/cmocka )
"
QA_PREBUILT="/usr/share/afl/testcases/others/elf/small_exec.elf"
PATCHES=(
"${FILESDIR}/${PN}-3.0c-LDFLAGS.patch"
"${FILESDIR}/${PN}-3.13c-CFLAGS.patch"
"${FILESDIR}/${PN}-3.14c-no-ignore-errors-makefile.patch"
)
llvm_check_deps() {
has_version -b "sys-devel/clang:${LLVM_SLOT}" && \
has_version -b "sys-devel/llvm:${LLVM_SLOT}"
}
pkg_setup() {
llvm_pkg_setup
python-single-r1_pkg_setup
}
src_prepare() {
default
sed -i -e 's/-O3 -fno-unroll-loops//' GNUmakefile || die
}
src_compile() {
emake \
CC="$(tc-getCC)" \
CXX="$(tc-getCXX)" \
CFLAGS_FLTO="" \
PREFIX="${EPREFIX}/usr" \
HELPER_PATH="${EPREFIX}/usr/$(get_libdir)/afl" \
DOC_PATH="${EPREFIX}/usr/share/doc/${PF}" \
MAN_PATH="${EPREFIX}/usr/share/man/man8"
}
src_test() {
emake \
CC="$(tc-getCC)" \
CXX="$(tc-getCXX)"
}
src_install() {
emake \
CC="$(tc-getCC)" \
CXX="$(tc-getCXX)" \
DESTDIR="${D}" \
PREFIX="${EPREFIX}/usr" \
HELPER_PATH="${EPREFIX}/usr/$(get_libdir)/afl" \
DOC_PATH="${EPREFIX}/usr/share/doc/${PF}" \
MAN_PATH="${EPREFIX}/usr/share/man/man8" \
install
}
pkg_postinst() {
# TODO: Any others?
optfeature "fuzzing with AFL_USE_ASAN" sys-libs/compiler-rt-sanitizers[asan]
optfeature "fuzzing with AFL_USE_MSAN" sys-libs/compiler-rt-sanitizers[msan]
}
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