6c25dec844
This is based on the decision The NetBSD Foundation made in 2008 to do so, which was already applied to src. This change has been applied to code which is likely not in other repositories. ok board@, reviewed by riastradh@
135 lines
3.6 KiB
Bash
135 lines
3.6 KiB
Bash
#! @WRAPPER_SHELL@
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#
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# $NetBSD: gen-reorder.sh,v 1.2 2018/08/22 20:48:37 maya Exp $
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#
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# Copyright (c) 2004 The NetBSD Foundation, Inc.
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# All rights reserved.
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#
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# This code is derived from software contributed to The NetBSD Foundation
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# by Johnny C. Lam.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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shell_lib="@_WRAP_SHELL_LIB@"
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wrapperlog="${WRAPPER_LOG-@_WRAP_LOG@}"
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debug="${WRAPPER_DEBUG-no}"
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cat="@CAT@"
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. $shell_lib
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case $debug in
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yes) debug_log="msg_log" ;;
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*) debug_log=":" ;;
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esac
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######################################################################
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# gen reorder:l:foo:bar
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# Outputs a branch of a shell case statement that reorders
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# libs to ensure that "-lfoo" occurs before "-lbar".
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######################################################################
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gen() {
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save_IFS="${IFS}"; IFS=":"
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set -- $1
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IFS="${save_IFS}"
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_cmd="$1"; shift
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case $_cmd in
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reorder)
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$debug_log $wrapperlog " (gen-reorder) $_cmd: $@"
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case $1 in
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l)
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$cat << EOF
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# -l$2 comes before -l$3
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-l$2)
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case "\${_libs}" in
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-l$3|-l$3" "*)
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_libs="\$l \${_libs}"
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;;
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*" "-l$3)
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_libs="\${_libs%%-l$3}\$l -l$3"
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;;
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*" "-l$3" "*)
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_libs="\${_libs%% -l$3 *} \$l -l$3 \${_libs#* -l$3 }"
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;;
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*)
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_libs="\${_libs} \$l"
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;;
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esac
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;;
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EOF
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;;
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esac
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;;
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*)
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$debug_log $wrapperlog " (gen-reorder) $_cmd: $@ [unknown]"
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;;
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esac
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}
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######################################################################
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# Header for reorder script
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######################################################################
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$cat << 'EOF'
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msg_log $wrapperlog "==> Reordering libraries: $libs"
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prevlibs=
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while $test "$libs" != "$prevlibs"; do
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_libs=
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for l in $libs; do
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case $l in
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EOF
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######################################################################
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# Generate body for reorder script.
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######################################################################
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for arg do
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gen "$arg"
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done
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######################################################################
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# Footer for reorder script
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######################################################################
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$cat << 'EOF'
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*)
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_libs="${_libs} $l"
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;;
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esac
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_libs="${_libs# }"
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_libs="${_libs% }"
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done
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prevlibs="$libs"
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libs="${_libs}"
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done
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# This section suppresses duplicate libraries in sequence.
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_libs=
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for l in $libs; do
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case "${_libs}" in
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$l|*" "$l) ;;
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*) _libs="${_libs} $l" ;;
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esac
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done
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_libs="${_libs# }"
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_libs="${_libs% }"
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libs="${_libs}"
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EOF
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exit 0
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