dev-util/bpftool: Sync with Gentoo

It's from Gentoo commit 896cdc33b503fac3e8fbd33f4f1ae0665fe7d10b.

sdk_container/src/third_party/portage-stable/dev-util/bpftool/Manifest

@@ -1,2 +1,4 @@
 DIST linux-6.5.tar.xz 138898084 BLAKE2B 2e641b79a080e8f4ce283bcf6b74e2c6f15a374367f1c4c875c663868dbe801317340824fb3adb46b3a51d3b7e1f67cc4e8144d367621ec43ffba5c4eb8abb39 SHA512 1b59dc5e65d4922c3217a8c8f19022dfd6595ae89747861d825bfeb51a4ae6c85449d05db69635a712bef7b355b80318195665582d8933b1fed6ba582f6ff257
+DIST linux-6.6.tar.xz 140064536 BLAKE2B 5f02fd8696d42f7ec8c5fbadec8e7270bdcfcb1f9844a6c4db3e1fd461c93ce1ccda650ca72dceb4890ebcbbf768ba8fba0bce91efc49fbd2c307b04e95665f2 SHA512 458b2c34d46206f9b4ccbac54cc57aeca1eaecaf831bc441e59701bac6eadffc17f6ce24af6eadd0454964e843186539ac0d63295ad2cc32d112b60360c39a35
 DIST patch-6.5.7.xz 561404 BLAKE2B 98f6fe0a43562cc60ada3596443e56966742de6ec2ef243331d22a4f345ad5741a5fe136e03ae0a5016fec4234bb89e6a6262076d3e5a449c53bb78ee7fb1175 SHA512 4c77a595fa76e8b0a07aff0aa681af7ae3d91231964662158b6a484ba477679d85dae8e12152ea95893d0794c6cef4f1394f908b7da6d6bf34b59d8b33d8c392
+DIST patch-6.6.8.xz 587540 BLAKE2B 4794b1b4415b8369b856a4b04d23931903a84d7f660e5cbf5677c359dba3c64cdb55606325ad2be1ce7878cd0daa95d2318dbf5ef12006ad37c9a69cd74b2dae SHA512 1bdf6186ef52831d508dacf740ce6c18eccca71a6426e294d5d47ebfff26a716c58db1963c439760ef104a594db5fa888d3374bc113af229794cca9362692dfe

sdk_container/src/third_party/portage-stable/dev-util/bpftool/bpftool-6.6.8.ebuild

@@ -0,0 +1,118 @@
+# Copyright 2021-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{9..11} )
+inherit estack linux-info optfeature python-any-r1 bash-completion-r1 toolchain-funcs
+
+MY_PV="${PV/_/-}"
+MY_PV="${MY_PV/-pre/-git}"
+
+DESCRIPTION="Tool for inspection and simple manipulation of eBPF programs and maps"
+HOMEPAGE="https://kernel.org/"
+
+LINUX_V="${PV:0:1}.x"
+LINUX_VER=$(ver_cut 1-2)
+LINUX_PATCH=patch-${PV}.xz
+SRC_URI="https://www.kernel.org/pub/linux/kernel/v${LINUX_V}/${LINUX_PATCH}"
+
+LINUX_SOURCES="linux-${LINUX_VER}.tar.xz"
+SRC_URI+=" https://www.kernel.org/pub/linux/kernel/v${LINUX_V}/${LINUX_SOURCES}"
+
+S_K="${WORKDIR}/linux-${LINUX_VER}"
+S="${S_K}/tools/bpf/bpftool"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~x86"
+IUSE="caps"
+
+RDEPEND="
+	sys-libs/binutils-libs:=
+	sys-libs/zlib:=
+	virtual/libelf:=
+	caps? ( sys-libs/libcap:= )
+"
+DEPEND="
+	${RDEPEND}
+	>=sys-kernel/linux-headers-5.8
+"
+BDEPEND="
+	${LINUX_PATCH+dev-util/patchutils}
+	${PYTHON_DEPS}
+	app-arch/tar
+	dev-python/docutils
+"
+
+CONFIG_CHECK="~DEBUG_INFO_BTF"
+
+# src_unpack and src_prepare are copied from dev-util/perf since
+# it's building from the same tarball, please keep it in sync with perf
+src_unpack() {
+	local paths=(
+		tools/bpf kernel/bpf
+		tools/{arch,build,include,lib,perf,scripts} {scripts,include,lib} "arch/*/lib"
+	)
+
+	# We expect the tar implementation to support the -j and --wildcards option
+	echo ">>> Unpacking ${LINUX_SOURCES} (${paths[*]}) to ${PWD}"
+	gtar --wildcards -xpf "${DISTDIR}"/${LINUX_SOURCES} \
+		"${paths[@]/#/linux-${LINUX_VER}/}" || die
+
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		eshopts_push -o noglob
+		ebegin "Filtering partial source patch"
+		filterdiff -p1 ${paths[@]/#/-i } -z "${DISTDIR}"/${LINUX_PATCH} \
+			> ${P}.patch
+		eend $? || die "filterdiff failed"
+		eshopts_pop
+	fi
+
+	local a
+	for a in ${A}; do
+		[[ ${a} == ${LINUX_SOURCES} ]] && continue
+		[[ ${a} == ${LINUX_PATCH} ]] && continue
+		unpack ${a}
+	done
+}
+
+src_prepare() {
+	default
+
+	if [[ -n ${LINUX_PATCH} ]] ; then
+		pushd "${S_K}" >/dev/null || die
+		eapply "${WORKDIR}"/${P}.patch
+		popd || die
+	fi
+
+	# dev-python/docutils installs rst2man.py, not rst2man
+	sed -i -e 's/rst2man/rst2man.py/g' Documentation/Makefile || die
+}
+
+bpftool_make() {
+	local arch=$(tc-arch-kernel)
+	tc-export AR CC LD
+
+	emake V=1 VF=1 \
+		HOSTCC="$(tc-getBUILD_CC)" HOSTLD="$(tc-getBUILD_LD)" \
+		EXTRA_CFLAGS="${CFLAGS}" ARCH="${arch}" BPFTOOL_VERSION="${MY_PV}" \
+		prefix="${EPREFIX}"/usr \
+		bash_compdir="$(get_bashcompdir)" \
+		feature-libcap="$(usex caps 1 0)" \
+		"$@"
+}
+
+src_compile() {
+	bpftool_make
+	bpftool_make -C Documentation
+}
+
+src_install() {
+	bpftool_make DESTDIR="${D}" install
+	bpftool_make mandir="${ED}"/usr/share/man -C Documentation install
+}
+
+pkg_postinst() {
+	optfeature "clang-bpf-co-re support" sys-devel/clang[llvm_targets_BPF]
+}