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#!/bin/bash
set -e
set -o pipefail
die() {
echo "$@"
exit 1
}
# generates the linker version script src/NetworkManager.ver
# by looking at the symbols needed by the device and settings
# plugins. Note that this depends on how NetworkManager and
# the plugins are build. For example, compiling without
# --with-more-asserts will yield less symbols.
#
# _build re-builds NetworkManager with relevant compile time
# options to yield the most symbols.
_build() {
git clean -fdx
./autogen.sh --enable-ld-gc --enable-ifcfg-rh --enable-ifupdown \
--enable-ibft --enable-teamdctl --enable-wifi \
--with-modem-manager-1 --with-ofono --with-more-asserts \
--with-more-logging
make -j20
}
_sort() {
LANG=C sort -u
}
call_nm() {
"${NM:-nm}" "$1" |
sed -n 's/.* \([^ ]\) \([^ ]*\)$/\1 \2/p'
}
get_symbols_nm () {
if [ -z "$from_meson" ]; then
base=./src/.libs/libNetworkManager.a
else
base=./src/nm-full-symbols
fi
call_nm "$base" |
sed -n 's/^[tTDGRBS] //p' |
_sort
}
get_symbols_explict() {
cat <<EOF | _sort
_IO_stdin_used
EOF
}
get_symbols_missing() {
(for f in $(find ./src/settings/plugins/*/${libs} \
./src/devices/*/${libs} \
./src/ppp/${libs} -name '*.so'); do
call_nm "$f" |
sed -n 's/^\([U]\) \(\(nm_\|nmp_\|_nm\|NM\|_NM\|c_siphash_\).*\)$/\2/p'
done) |
_sort |
grep -Fx -f <(get_symbols_explict) -v |
grep -Fx -f <(get_symbols_nm)
}
pretty() {
sed 's/.*/\t\0;/'
}
do_build() {
do_update
make
}
do_rebuild() {
_build
do_build
}
do_update() {
do_generate > ./src/NetworkManager.ver
}
do_generate() {
cat <<EOF
# this file is generated by $0
{
global:
$(get_symbols_missing | pretty)
$(get_symbols_explict | pretty)
local:
*;
};
EOF
}
if [ -f "build.ninja" ]; then
from_meson=1
libs=
else
libs=.libs/
fi
test -f ./src/${libs}libNetworkManager.a || die "must be called from NetworkManager top build dir after building the tree"
case "$1" in
rebuild)
[ -n "$from_meson" ] && die "can't do a build when called from meson"
do_rebuild
;;
build)
[ -n "$from_meson" ] && die "can't do a build when called from meson"
do_build
;;
--called-from-build)
if test -z "${NM_BUILD_NO_CREATE_EXPORTS+x}"; then
do_update
else
if test -f "./src/NetworkManager.ver"; then
touch ./src/NetworkManager.ver
fi
fi
;;
update)
do_update
;;
*)
do_generate
;;
esac
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