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#!/usr/bin/bash
#
# pgo.sh - Compile with, or utilize profile guided optimization
#
# Copyright (c) 2008-2016 Pacman Development Team <pacman-dev@archlinux.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
[[ -n "$LIBMAKEPKG_PGO_SH" ]] && return
LIBMAKEPKG_PGO_SH=1
LIBRARY=${LIBRARY:-'@libmakepkgdir@'}
source "$LIBRARY/util/message.sh"
source "$LIBRARY/util/option.sh"
extra_buildopts+=('pgo')
[[ -n ${PROFDEST} ]] && _PROFDEST=$(canonicalize_path ${PROFDEST})
PROFDEST=${_PROFDEST:-$PROFDEST}
PROFDEST=${PROFDEST:-$startdir} #default to $startdir if undefined
if [[ ! -w $PROFDEST ]] ; then
error "$(gettext "You do not have write permission to store profiles in %s.")" "$PROFDEST"
plain "$(gettext "Aborting...")"
exit 1
fi
pgo() {
[[ "$INFAKEROOT" == 1 ]] && return
if check_buildoption "pgo" "y"; then
if [ ! -d "$PROFDEST/$pkgbase.gen" ]; then
mkdir "$PROFDEST/$pkgbase.gen"
CFLAGS+=" -fprofile-generate -fprofile-dir=$PROFDEST/$pkgbase.gen"
CXXFLAGS+=" -fprofile-generate -fprofile-dir=$PROFDEST/$pkgbase.gen"
LDFLAGS+=" -lgcov"
else
[[ ! -d "$PROFDEST/$pkgbase.used" ]] && mv "$PROFDEST/$pkgbase.gen" "$PROFDEST/$pkgbase.used"
CFLAGS+=" -fprofile-correction -fprofile-use -fprofile-dir=$PROFDEST/$pkgbase.used"
CXXFLAGS+=" -fprofile-correction -fprofile-use -fprofile-dir=$PROFDEST/$pkgbase.used"
fi
fi
}
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