diff options
Diffstat (limited to 'lto.sh.in')
-rw-r--r-- | lto.sh.in | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/lto.sh.in b/lto.sh.in new file mode 100644 index 000000000000..de7373149fd4 --- /dev/null +++ b/lto.sh.in @@ -0,0 +1,40 @@ +#!/usr/bin/bash +# +# lto.sh - Compile with link-time 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 "$LIBMAKEPKG_LTO_SH" ]] && return +LIBMAKEPKG_LTO_SH=1 + +LIBRARY=${LIBRARY:-'@libmakepkgdir@'} + +source "$LIBRARY/util/option.sh" + +extra_buildopts+=('lto') + +lto() { + if check_buildoption "lto" "y" && [[ -f "$(gcc -print-search-dirs | grep install | awk '{print $2 "liblto_plugin.so"}')" ]]; then + CFLAGS+=" -flto=$(getconf _NPROCESSORS_ONLN)" + CXXFLAGS+=" -flto=$(getconf _NPROCESSORS_ONLN)" + LDFLAGS+=" -fuse-linker-plugin" + LTOPLUGIN="$(gcc -print-search-dirs | grep install | awk '{print $2 "liblto_plugin.so"}')" + ARFLAGS+=" --plugin $LTOPLUGIN" + RANLIBFLAGS+=" --plugin $LTOPLUGIN" + NMFLAGS+=" --plugin $LTOPLUGIN" + fi +} |