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# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
FORTRAN_NEEDED=fortran
inherit fcaps fortran-2 linux-info toolchain-funcs
DESCRIPTION="A performance-oriented tool suite for x86 multicore environments"
HOMEPAGE="https://github.com/rrze-likwid/likwid"
SRC_URI="https://ftp.fau.de/pub/likwid/${P}.tar.gz"
LICENSE="GPL-3+ BSD MIT"
SLOT="0"
KEYWORDS="~amd64" # upstream partial support exists for x86 arm arm64
IUSE="fortran"
CDEPEND="dev-lang/perl"
RDEPEND="${CDEPEND}"
DEPEND="${CDEPEND}"
CONFIG_CHECK="~X86_MSR"
FILECAPS=(
-M 755 cap_sys_rawio+ep usr/sbin/likwid-accessD
--
-M 755 cap_sys_rawio+ep usr/sbin/likwid-setFreq
)
PATCHES=(
"${FILESDIR}/${PN}-4.3.1-fix-gnustack.patch"
)
pkg_setup() {
fortran-2_pkg_setup
}
src_prepare() {
# Ensure we build with a non executable stack
sed \
-e '/^SHARED_CFLAGS/s/$/ -Wa,--noexecstack/' \
-i make/include_{GCC*,CLANG}.mk \
|| die "Failed to set nonexecstack"
# Make the install targets respect Q= for being quiet or not
# MUCH easier for debugging
sed -r \
-e '/^install/,/^[a-z]/{/^\t@/{ s/@/$(Q)/; }}' \
-i \
Makefile || die "Failed to sed Makefile"
sed -i \
-e '/^\.NOTPARALLEL:/d' \
Makefile \
bench/Makefile \
ext/hwloc/Makefile || die "Failed to re-enable parallel"
default
}
export_emake_opts() {
# Warning: this build system uses PREFIX in a way that differs from
# autoconf! It's more like:
# PREFIX=$(DESTDIR)$(INSTALLED_PREFIX)
# it's not 100% like that, because parts of the Makefiles are inconsistent.
# this is the same solution used in the upstream RPM specs
# these variables are uppercase so they match what's put into Make.
local INSTALLED_PREFIX=/usr
local INSTALLED_LIBPREFIX=/usr/$(get_libdir) # upstream is '$(INSTALLED_PREFIX)/lib'
local INSTALLED_MANPREFIX=/usr/share/man # upstream has it as used but undefined variable.
# If the build is too loud, pass 'Q=@'
src_compile_opts=(
"Q="
"INSTALLED_PREFIX=${INSTALLED_PREFIX}"
"INSTALLED_LIBPREFIX=${INSTALLED_LIBPREFIX}"
"INSTALLED_MANPREFIX=${INSTALLED_MANPREFIX}"
"PREFIX=${INSTALLED_PREFIX}"
"LIBPREFIX=${INSTALLED_LIBPREFIX}"
"MANPREFIX=${INSTALLED_MANPREFIX}"
"CC=$(tc-getCC)"
"ANSI_CFLAGS=${CFLAGS}"
"INSTRUMENT_BENCH=true"
"FORTRAN_INTERFACE=$(usex fortran likwid.mod false)"
"FC=$(usex fortran "${FC}" false)"
"FCFLAGS=-J ./ -fsyntax-only" # needed for building correctly
)
src_install_opts=(
"PREFIX=${D}${INSTALLED_PREFIX}"
"LIBPREFIX=${D}${INSTALLED_LIBPREFIX}"
"MANPREFIX=${D}${INSTALLED_MANPREFIX}"
)
}
src_compile() {
export_emake_opts
emake \
"${src_compile_opts[@]}" \
|| die 'emake failed'
}
src_install () {
export_emake_opts
emake \
"${src_compile_opts[@]}" \
"${src_install_opts[@]}" \
DESTDIR="${D}" \
install || die 'emake install failed'
use fortran && doheader likwid.mod
# Fix Python filter added shortly after 4.3.3
#python_fix_shebang "${D}"/usr/share/likwid/filter/
# Do NOT use 'doman'! The upstream 'make install' target does a sed as it's
# generating the final manpage to the real install dir; and the copies in
# ${S} are unmodified.
dodoc README.md CHANGELOG
dodoc doc/*.txt
dodoc doc/*.md
dodoc -r doc/applications doc/archs
# Fix upstream partial doc install
rm -rf "${D}"/usr/share/likwid/docs || die
ln -sf "/usr/share/doc/${PF}" "${D}"/usr/share/likwid/docs || die
}
pkg_preinst() {
# This is now a symlink, but used to be a plain directory
OLDDOCDIR=/usr/share/likwid/docs
if [[ ! -L "${OLDDOCDIR}" && -d "${OLDDOCDIR}" ]]; then
einfo "Cleaning up old docdir at ${OLDDOCDIR}"
rm -rf "${OLDDOCDIR}" || die
fi
}
pkg_postinst() {
fcaps_pkg_postinst
einfo "If you get 'Cannot gather values from MSR_PLATFORM_INFO', then 'modprobe msr'!"
einfo
ewarn "To enable users to access performance counters it is necessary to"
ewarn "change the access permissions to /dev/cpu/msr[0]* devices."
ewarn "It can be accomplished by adding the following line to file"
ewarn "/etc/udev/rules.d/99-myrules.rules: KERNEL==\"msr[0-9]*\" MODE=\"0666\""
ewarn "Alternatively, assign the MSR files to a unique group and use mode 0660"
}
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