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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
PYTHON_COMPAT=( python3_{10..12} )
inherit bash-completion-r1 estack flag-o-matic linux-info llvm toolchain-funcs python-r1
DESCRIPTION="Userland tools for Linux Performance Counters"
HOMEPAGE="https://perf.wiki.kernel.org/"
LINUX_V="${PV:0:1}.x"
if [[ ${PV} == *_rc* ]] ; then
LINUX_VER=$(ver_cut 1-2).$(($(ver_cut 3)-1))
PATCH_VERSION=$(ver_cut 1-3)
LINUX_PATCH=patch-${PV//_/-}.xz
SRC_URI="https://www.kernel.org/pub/linux/kernel/v${LINUX_V}/testing/${LINUX_PATCH}
https://www.kernel.org/pub/linux/kernel/v${LINUX_V}/testing/v${PATCH_VERSION}/${LINUX_PATCH}"
elif [[ ${PV} == *.*.* ]] ; then
# stable-release series
LINUX_VER=$(ver_cut 1-2)
LINUX_PATCH=patch-${PV}.xz
SRC_URI="https://www.kernel.org/pub/linux/kernel/v${LINUX_V}/${LINUX_PATCH}"
else
LINUX_VER=${PV}
fi
LINUX_SOURCES="linux-${LINUX_VER}.tar.xz"
SRC_URI+=" https://www.kernel.org/pub/linux/kernel/v${LINUX_V}/${LINUX_SOURCES}"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~loong ~mips ~ppc ~ppc64 ~riscv ~x86 ~amd64-linux ~x86-linux"
IUSE="abi_mips_o32 abi_mips_n32 abi_mips_n64 audit babeltrace big-endian bpf caps crypt debug +doc gtk java libpfm +libtraceevent +libtracefs lzma numa perl python slang systemtap tcmalloc unwind zstd"
REQUIRED_USE="
${PYTHON_REQUIRED_USE}
"
# setuptools (and Python) are always needed even if not building Python bindings
BDEPEND="
${LINUX_PATCH+dev-util/patchutils}
${PYTHON_DEPS}
>=app-arch/tar-1.34-r2
dev-python/setuptools[${PYTHON_USEDEP}]
sys-devel/bison
app-alternatives/lex
virtual/pkgconfig
doc? (
app-text/asciidoc
app-text/sgml-common
app-text/xmlto
sys-process/time
)
"
RDEPEND="
audit? ( sys-process/audit )
babeltrace? ( dev-util/babeltrace )
bpf? (
dev-libs/libbpf
dev-util/bpftool
dev-util/pahole
)
caps? ( sys-libs/libcap )
bpf? (
sys-devel/clang:=
sys-devel/llvm:=
)
crypt? ( dev-libs/openssl:= )
gtk? ( x11-libs/gtk+:2 )
java? ( virtual/jre:* )
libpfm? ( dev-libs/libpfm:= )
libtraceevent? ( dev-libs/libtraceevent )
libtracefs? ( dev-libs/libtracefs )
lzma? ( app-arch/xz-utils )
numa? ( sys-process/numactl )
perl? ( dev-lang/perl:= )
python? ( ${PYTHON_DEPS} )
slang? ( sys-libs/slang )
systemtap? ( dev-util/systemtap )
tcmalloc? ( dev-util/google-perftools )
unwind? ( sys-libs/libunwind:= )
zstd? ( app-arch/zstd:= )
dev-libs/elfutils
sys-libs/binutils-libs:=
sys-libs/zlib
"
DEPEND="${RDEPEND}
>=sys-kernel/linux-headers-5.10
java? ( virtual/jdk )
"
S_K="${WORKDIR}/linux-${LINUX_VER}"
S="${S_K}/tools/perf"
CONFIG_CHECK="
~DEBUG_INFO
~FTRACE
~FTRACE_SYSCALLS
~FUNCTION_TRACER
~KALLSYMS
~KALLSYMS_ALL
~KPROBES
~KPROBE_EVENTS
~PERF_EVENTS
~UPROBES
~UPROBE_EVENTS
"
QA_FLAGS_IGNORED=(
'usr/bin/perf-read-vdso32' # not linked with anything except for libc
'usr/libexec/perf-core/dlfilters/.*' # plugins
)
pkg_pretend() {
if ! use doc ; then
ewarn "Without the doc USE flag you won't get any documentation nor man pages."
ewarn "And without man pages, you won't get any --help output for perf and its"
ewarn "sub-tools."
fi
}
pkg_setup() {
use bpf && llvm_pkg_setup
# We enable python unconditionally as libbpf always generates
# API headers using python script
python_setup
if use bpf ; then
CONFIG_CHECK+="~BPF ~BPF_EVENTS ~BPF_SYSCALL ~DEBUG_INFO_BTF ~HAVE_EBPF_JIT"
fi
linux-info_pkg_setup
}
# src_unpack and src_prepare are copied to dev-util/bpftool since
# it's building from the same tarball, please keep it in sync with bpftool
src_unpack() {
local paths=(
kernel/bpf tools/{arch,bpf,build,include,lib,perf,scripts}
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 ${PWD}"
gtar --wildcards -xpf "${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
pushd "${S_K}" >/dev/null || die
eapply "${FILESDIR}"/perf-6.4-libtracefs.patch
popd || die
# Drop some upstream too-developer-oriented flags and fix the
# Makefile in general
sed -i \
-e "s@\$(sysconfdir_SQ)/bash_completion.d@$(get_bashcompdir)@" \
"${S}"/Makefile.perf || die
# A few places still use -Werror w/out $(WERROR) protection.
sed -i -e 's@-Werror@@' \
"${S}"/Makefile.perf "${S_K}"/tools/lib/bpf/Makefile \
"${S_K}"/tools/lib/perf/Makefile || die
# Avoid the call to make kernelversion
sed -i -e '/PERF-VERSION-GEN/d' Makefile.perf || die
echo "#define PERF_VERSION \"${PV}\"" > PERF-VERSION-FILE
# The code likes to compile local assembly files which lack ELF markings.
find -name '*.S' -exec sed -i '$a.section .note.GNU-stack,"",%progbits' {} +
}
puse() { usex $1 "" 1; }
perf_make() {
# The arch parsing is a bit funky. The perf tools package is integrated
# into the kernel, so it wants an ARCH that looks like the kernel arch,
# but it also wants to know about the split value -- i386/x86_64 vs just
# x86. We can get that by telling the func to use an older linux version.
# It's kind of a hack, but not that bad ...
# LIBDIR sets a search path of perf-gtk.so. Bug 515954
local arch=$(tc-arch-kernel)
local java_dir
use java && java_dir="${EPREFIX}/etc/java-config-2/current-system-vm"
# sync this with the whitelist in tools/perf/Makefile.config
local disable_libdw
if ! use amd64 && ! use x86 && \
! use arm && \
! use arm64 && \
! use ppc && ! use ppc64 \
! use s390 && \
! use riscv && \
! use loong
then
disable_libdw=1
fi
# perf directly invokes LD for linking without going through CC, on mips
# it is required to specify the emulation. port of below buildroot patch
# https://patchwork.ozlabs.org/project/buildroot/patch/20170217105905.32151-1-Vincent.Riera@imgtec.com/
local linker="$(tc-getLD)"
if use mips
then
if use big-endian
then
use abi_mips_n64 && linker+=" -m elf64btsmip"
use abi_mips_n32 && linker+=" -m elf32btsmipn32"
use abi_mips_o32 && linker+=" -m elf32btsmip"
else
use abi_mips_n64 && linker+=" -m elf64ltsmip"
use abi_mips_n32 && linker+=" -m elf32ltsmipn32"
use abi_mips_o32 && linker+=" -m elf32ltsmip"
fi
fi
# FIXME: NO_CORESIGHT
local emakeargs=(
V=1 VF=1
HOSTCC="$(tc-getBUILD_CC)" HOSTLD="$(tc-getBUILD_LD)"
CC="$(tc-getCC)" CXX="$(tc-getCXX)" AR="$(tc-getAR)" LD="${linker}" NM="$(tc-getNM)"
PKG_CONFIG="$(tc-getPKG_CONFIG)"
prefix="${EPREFIX}/usr" bindir_relative="bin"
tipdir="share/doc/${PF}"
EXTRA_CFLAGS="${CFLAGS}"
EXTRA_LDFLAGS="${LDFLAGS}"
ARCH="${arch}"
BUILD_BPF_SKEL=$(usex bpf 1 "") \
BUILD_NONDISTRO=1
JDIR="${java_dir}"
CORESIGHT=
GTK2=$(usex gtk 1 "")
feature-gtk2-infobar=$(usex gtk 1 "")
NO_AUXTRACE=
NO_BACKTRACE=
NO_DEMANGLE=
NO_JEVENTS=$(puse python)
NO_JVMTI=$(puse java)
NO_LIBAUDIT=$(puse audit)
NO_LIBBABELTRACE=$(puse babeltrace)
NO_LIBBIONIC=1
NO_LIBBPF=$(puse bpf)
NO_LIBCAP=$(puse caps)
NO_LIBCRYPTO=$(puse crypt)
NO_LIBDW_DWARF_UNWIND="${disable_libdw}"
NO_LIBELF=
NO_LIBNUMA=$(puse numa)
NO_LIBPERL=$(puse perl)
NO_LIBPFM4=$(puse libpfm)
NO_LIBPYTHON=$(puse python)
NO_LIBTRACEEVENT=$(puse libtraceevent)
NO_LIBUNWIND=$(puse unwind)
NO_LIBZSTD=$(puse zstd)
NO_SDT=$(puse systemtap)
NO_SLANG=$(puse slang)
NO_LZMA=$(puse lzma)
NO_ZLIB=
TCMALLOC=$(usex tcmalloc 1 "")
WERROR=0
LIBDIR="/usr/libexec/perf-core"
libdir="${EPREFIX}/usr/$(get_libdir)"
plugindir="${EPREFIX}/usr/$(get_libdir)/perf/plugins"
"$@"
)
emake "${emakeargs[@]}"
}
src_compile() {
filter-lto
perf_make -f Makefile.perf
use doc && perf_make -C Documentation man
}
src_test() {
:
}
src_install() {
_install_python_ext() {
perf_make -f Makefile.perf install-python_ext DESTDIR="${D}"
}
perf_make -f Makefile.perf install DESTDIR="${D}"
if use python; then
python_foreach_impl _install_python_ext
fi
if use gtk; then
local libdir
libdir="$(get_libdir)"
# on some arches it ends up in lib even on 64bit, ppc64 for instance.
[[ -f "${ED}"/usr/lib/libperf-gtk.so ]] && libdir="lib"
mv "${ED}"/usr/${libdir}/libperf-gtk.so \
"${ED}"/usr/libexec/perf-core || die
fi
dodoc CREDITS
dodoc *txt Documentation/*.txt
# perf needs this decompressed to print out tips for users
docompress -x /usr/share/doc/${PF}/tips.txt
if use doc ; then
doman Documentation/*.1
fi
}
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