/
gen-reorder.sh
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/
gen-reorder.sh
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#! @WRAPPER_SHELL@
#
# $NetBSD: gen-reorder.sh,v 1.1 2004/09/21 15:01:41 jlam Exp $
#
# Copyright (c) 2004 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Johnny C. Lam.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by the NetBSD
# Foundation, Inc. and its contributors.
# 4. Neither the name of The NetBSD Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
shell_lib="@_WRAP_SHELL_LIB@"
wrapperlog="${WRAPPER_LOG-@_WRAP_LOG@}"
debug="${WRAPPER_DEBUG-no}"
cat="@CAT@"
. $shell_lib
case $debug in
yes) debug_log="msg_log" ;;
*) debug_log=":" ;;
esac
######################################################################
# gen reorder:l:foo:bar
# Outputs a branch of a shell case statement that reorders
# libs to ensure that "-lfoo" occurs before "-lbar".
######################################################################
gen() {
save_IFS="${IFS}"; IFS=":"
set -- $1
IFS="${save_IFS}"
_cmd="$1"; shift
case $_cmd in
reorder)
$debug_log $wrapperlog " (gen-reorder) $_cmd: $@"
case $1 in
l)
$cat << EOF
# -l$2 comes before -l$3
-l$2)
case "\${_libs}" in
-l$3|-l$3" "*)
_libs="\$l \${_libs}"
;;
*" "-l$3)
_libs="\${_libs%%-l$3}\$l -l$3"
;;
*" "-l$3" "*)
_libs="\${_libs%% -l$3 *} \$l -l$3 \${_libs#* -l$3 }"
;;
*)
_libs="\${_libs} \$l"
;;
esac
;;
EOF
;;
esac
;;
*)
$debug_log $wrapperlog " (gen-reorder) $_cmd: $@ [unknown]"
;;
esac
}
######################################################################
# Header for reorder script
######################################################################
$cat << 'EOF'
msg_log $wrapperlog "==> Reordering libraries: $libs"
prevlibs=
while $test "$libs" != "$prevlibs"; do
_libs=
for l in $libs; do
case $l in
EOF
######################################################################
# Generate body for reorder script.
######################################################################
for arg do
gen "$arg"
done
######################################################################
# Footer for reorder script
######################################################################
$cat << 'EOF'
*)
_libs="${_libs} $l"
;;
esac
_libs="${_libs# }"
_libs="${_libs% }"
done
prevlibs="$libs"
libs="${_libs}"
done
# This section suppresses duplicate libraries in sequence.
_libs=
for l in $libs; do
case "${_libs}" in
$l|*" "$l) ;;
*) _libs="${_libs} $l" ;;
esac
done
_libs="${_libs# }"
_libs="${_libs% }"
libs="${_libs}"
EOF
exit 0