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# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI="5"
PYTHON_COMPAT=( python2_7 )
inherit versionator eutils toolchain-funcs python-single-r1 linux-info
MY_PV="${PV/_/-}"
MY_PV="${MY_PV/-pre/-git}"
DESCRIPTION="Userland tools for Linux Performance Counters"
HOMEPAGE="https://perf.wiki.kernel.org/"
LINUX_V="${PV:0:1}.x"
if [[ ${PV} == *_rc* ]] ; then
LINUX_VER=$(get_version_component_range 1-2).$(($(get_version_component_range 3)-1))
PATCH_VERSION=$(get_version_component_range 1-3)
LINUX_PATCH=patch-${PV//_/-}.xz
SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/testing/${LINUX_PATCH}
mirror://kernel/linux/kernel/v${LINUX_V}/testing/v${PATCH_VERSION}/${LINUX_PATCH}"
else
VER_COUNT=$(get_version_component_count)
if [[ ${VER_COUNT} -gt 2 ]] ; then
# stable-release series
LINUX_VER=$(get_version_component_range 1-2)
LINUX_PATCH=patch-${PV}.xz
SRC_URI="mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_PATCH}"
else
LINUX_VER=${PV}
SRC_URI=""
fi
fi
LINUX_SOURCES="linux-${LINUX_VER}.tar.xz"
SRC_URI+=" mirror://kernel/linux/kernel/v${LINUX_V}/${LINUX_SOURCES}"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~arm ~ppc ~x86"
IUSE="audit debug +demangle +doc gtk numa perl python slang unwind"
REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
RDEPEND="audit? ( sys-process/audit )
demangle? ( sys-devel/binutils:= )
gtk? ( x11-libs/gtk+:2 )
numa? ( sys-process/numactl )
perl? ( dev-lang/perl )
python? ( ${PYTHON_DEPS} )
slang? ( dev-libs/newt )
unwind? ( sys-libs/libunwind )
dev-libs/elfutils"
DEPEND="${RDEPEND}
>=sys-kernel/linux-headers-4.4
${LINUX_PATCH+dev-util/patchutils}
sys-devel/bison
sys-devel/flex
doc? (
app-text/asciidoc
app-text/sgml-common
app-text/xmlto
sys-process/time
)"
S_K="${WORKDIR}/linux-${LINUX_VER}"
S="${S_K}/tools/perf"
CONFIG_CHECK="~PERF_EVENTS ~KALLSYMS"
pkg_setup() {
linux-info_pkg_setup
use python && python-single-r1_pkg_setup
}
src_unpack() {
local paths=(
tools/arch tools/build tools/include tools/lib tools/perf tools/scripts
include lib "arch/*/lib"
)
# We expect the tar implementation to support the -j option (both
# GNU tar and libarchive's tar support that).
echo ">>> Unpacking ${LINUX_SOURCES} (${paths[*]}) to ${PWD}"
tar --wildcards -xpf "${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 || die
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() {
if [[ -n ${LINUX_PATCH} ]] ; then
cd "${S_K}"
epatch "${WORKDIR}"/${P}.patch
fi
# Drop some upstream too-developer-oriented flags and fix the
# Makefile in general
sed -i \
-e 's:-Werror::' \
-e 's:-ggdb3::' \
-e 's:-fstack-protector-all::' \
-e 's:^LDFLAGS =:EXTLIBS +=:' \
-e '/\(PERL\|PYTHON\)_EMBED_LDOPTS/s:ALL_LDFLAGS +=:EXTLIBS +=:' \
-e '/-x c - /s:\$(ALL_LDFLAGS):\0 $(EXTLIBS):' \
"${S}"/config/Makefile || die
sed -i \
-e 's:$(sysconfdir_SQ)/bash_completion.d:/usr/share/bash-completion:' \
"${S}"/Makefile.perf || die
sed -i -e 's:-Werror::' "${S_K}"/tools/lib/api/Makefile || die
# Avoid the call to make kernelversion
echo "#define PERF_VERSION \"${MY_PV}\"" > PERF-VERSION-FILE
# The code likes to compile local assembly files which lack ELF markings.
find -name '*.S' -exec sed -i '$a.section .note.GNU-stack,"",%progbits' {} +
}
puse() { usex $1 "" no; }
perf_make() {
# The arch parsing is a bit funky. The perf tools package is integrated
# into the kernel, so it wants an ARCH that looks like the kernel arch,
# but it also wants to know about the split value -- i386/x86_64 vs just
# x86. We can get that by telling the func to use an older linux version.
# It's kind of a hack, but not that bad ...
local arch=$(tc-arch-kernel)
emake V=1 \
CC="$(tc-getCC)" AR="$(tc-getAR)" LD="$(tc-getLD)" \
prefix="/usr" bindir_relative="bin" \
EXTRA_CFLAGS="${CFLAGS}" \
ARCH="${arch}" \
NO_DEMANGLE=$(puse demangle) \
NO_GTK2=$(puse gtk) \
NO_LIBAUDIT=$(puse audit) \
NO_LIBPERL=$(puse perl) \
NO_LIBPYTHON=$(puse python) \
NO_LIBUNWIND=$(puse unwind) \
NO_NEWT=$(puse slang) \
NO_LIBNUMA=$(puse numa) \
WERROR=0 \
"$@"
}
src_compile() {
perf_make -f Makefile.perf
use doc && perf_make -C Documentation
}
src_test() {
:
}
src_install() {
perf_make -f Makefile.perf install DESTDIR="${D}"
dodoc CREDITS
dodoc *txt Documentation/*.txt
if use doc ; then
dohtml Documentation/*.html
doman Documentation/*.1
fi
}
pkg_postinst() {
if ! use doc ; then
elog "Without the doc USE flag you won't get any documentation nor man pages."
elog "And without man pages, you won't get any --help output for perf and its"
elog "sub-tools."
fi
}
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