287 lines
9.1 KiB
Text
287 lines
9.1 KiB
Text
# $NetBSD: logic,v 1.7 2004/12/05 03:43:18 jlam 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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# 3. All advertising materials mentioning features or use of this software
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# must display the following acknowledgement:
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# This product includes software developed by the NetBSD
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# Foundation, Inc. and its contributors.
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# 4. Neither the name of The NetBSD Foundation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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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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# Empty out the argument buffer and fill up the command buffer.
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skipargs=0
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while ! queue_is_empty argbuf; do
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#
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# Grab the next argument from the head of the argument buffer
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# and return it in $arg.
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#
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argok=no
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while $test "$argok" = "no"; do
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if queue_is_empty argbuf; then
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argok=yes
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continue
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fi
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pop_queue argbuf arg
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$debug_log $wrapperlog " (logic) pop: $arg"
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#
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# Toggle whether we want to transform $arg or if we
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# want to pass it unmodified into the command buffer.
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#
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if $test $skipargs -eq 0; then
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do_transform=yes
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else
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skipargs=`$expr $skipargs - 1`
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do_transform=no
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argok=yes
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continue
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fi
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case $arg in
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######################################################
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# Split direct paths to shared libraries into the
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# "-Ldir -llib" equivalent
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######################################################
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/*/lib*.so|/*/lib*.so.[0-9]*)
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dir="${arg%/lib*}"
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lib="${arg#$dir/lib}"
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case $lib in
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*/*) argok=yes; continue ;;
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*.so) lib="${lib%.so}" ;;
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*.so.[0-9]*) lib="${lib%.so.[0-9]*}" ;;
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esac
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prepend_queue argbuf "-l$lib"
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$debug_log $wrapperlog " (logic) pre: -l$lib"
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prepend_queue argbuf "-L$dir"
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$debug_log $wrapperlog " (logic) pre: -L$dir"
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;;
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/*/lib*.dylib) # Darwin
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dir="${arg%/lib*.dylib}"
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lib="${arg#$dir/lib}"
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case $lib in
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*/*) argok=yes; continue ;;
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*.dylib) lib="${lib%.dylib}" ;;
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esac
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prepend_queue argbuf "-l$lib"
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$debug_log $wrapperlog " (logic) pre: -l$lib"
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prepend_queue argbuf "-L$dir"
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$debug_log $wrapperlog " (logic) pre: -L$dir"
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;;
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######################################################
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# Remove extraneous comma in "-Wl,-R,/dir" and in
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# "-Wl,-L,/dir".
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######################################################
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-Wl,-L,*)
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arg="-Wl,-L${arg#-Wl,-L,}"
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$debug_log $wrapperlog " (logic) pre: $arg"
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prepend_queue argbuf "$arg"
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;;
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-Wl,-R,*)
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arg="-Wl,-R${arg#-Wl,-R,}"
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$debug_log $wrapperlog " (logic) pre: $arg"
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prepend_queue argbuf "$arg"
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;;
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######################################################
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# Merge "-Wl,-R -Wl,/dir" into a single "-Wl,-R/dir".
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# Same for -Wl,-L, -Wl,-rpath and -Wl,-rpath-link.
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######################################################
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-Wl,-[LR])
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pop_queue argbuf nextarg
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$debug_log $wrapperlog " (logic) pop: $nextarg"
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shquote "${nextarg#-Wl,}"; nextarg="$shquoted"
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$debug_log $wrapperlog " (logic) pre: $arg$nextarg"
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prepend_queue argbuf "$arg$nextarg"
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;;
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-Wl,-rpath|-Wl,-rpath-link|-Wl,--rpath)
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pop_queue argbuf nextarg
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$debug_log $wrapperlog " (logic) pop: $nextarg"
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shquote "${nextarg#-Wl,}"; nextarg="$shquoted"
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$debug_log $wrapperlog " (logic) pre: $arg,$nextarg"
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prepend_queue argbuf "$arg,$nextarg"
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;;
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######################################################
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# Remove rpath options that try to add relative paths
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# to the runtime library search path. This basically
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# cleans up after lazy programmers who can't write
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# Makefiles.
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######################################################
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-R[!/]*|-Wl,-R[!/]*|\
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-Wl,-rpath,[!/]*|-Wl,-rpath-link,[!/]*|-Wl,--rpath,[!/]*)
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$debug_log $wrapperlog " (logic) drop: $arg"
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;;
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######################################################
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# Remove consecutive, repeated library options.
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######################################################
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-l*)
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head_queue argbuf nextarg
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while $test "$nextarg" = "$arg"; do
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pop_queue argbuf nextarg
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$debug_log $wrapperlog " (logic) drop: $nextarg"
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if queue_is_empty argbuf; then
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break
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else
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head_queue argbuf nextarg
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fi
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done
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argok=yes
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;;
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######################################################
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# The -o option takes an extra argument that should
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# be passed unmodified.
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#######################################################
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-o)
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skipargs=1
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argok=yes
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;;
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######################################################
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# GNU ld uses "--dynamic-linker /path/to/shared/object"
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# to set the dynamic linker code for ELF executables.
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######################################################
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--dynamic-linker)
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skipargs=1
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argok=yes
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;;
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######################################################
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# Darwin's linker uses:
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#
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# -dylib_file /path/shlib:/path2/shlib
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# -dylib_install_name /path/shlib
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# -install_name /path/shlib
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#
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# to pass the installed locations for the shared
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# libraries to the linker, and we need to pass the extra
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# argument unmodified. The purpose of
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# -seg_addr_table_filename is more obscure, but Darwin's
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# imake rules use it.
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######################################################
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-dylib_file|-dylib_install_name|-install_name|\
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-seg_addr_table_filename)
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skipargs=1
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argok=yes
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;;
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######################################################
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# Leave all else untouched.
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######################################################
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*)
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argok=yes
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esac
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done
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# Try to look up the transformed $arg in the cache, but if
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# not there, then apply the transformations and save the result
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# in the cache.
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#
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case $do_transform in
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yes)
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. $cache
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case $cachehit in
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yes)
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# The cache was hit and $arg is set.
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$debug_log $wrapperlog " (logic) to: $arg [cached]"
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;;
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*)
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# Apply transformations to $arg.
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addtocache=no
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split_arg=no
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case $skip_transform in
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yes)
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$debug_log $wrapperlog " (logic) to: $arg [untransformed]"
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;;
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*)
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shquote "$arg"; cachearg="$shquoted"
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case $arg in
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-*|/*)
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arg=`$echo "X$arg" | $Xsed $transform_sed`
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$debug_log $wrapperlog " (logic) to: $arg"
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addtocache=yes
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;;
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*)
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$debug_log $wrapperlog " (logic) to: $arg [untransformed]"
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;;
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esac
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# Apply wrapper-specific transformations
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# to $arg.
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#
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. $transform
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;;
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esac
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##############################################
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# Split all -l options along whitespace. This
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# disallows library names with whitespace, but it
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# allows us to handle transformations that look
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# like, e.g. "-lreadline" -> "-ledit -ltermcap".
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##############################################
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case $arg in
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-l*) split_arg=yes ;;
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esac
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# Re-create the cache file if we're adding to it.
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case $updatecache,$addtocache in
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yes,yes)
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shquote "$arg"; cachedarg="$shquoted"
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$cat >> $cache_body << EOF
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$cachearg) arg=$cachedarg; split_arg=$split_arg; cachehit=yes ;;
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EOF
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$cat $cache_header \
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$cache_body \
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$cache_footer > $cache
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;;
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esac
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;;
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esac
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case $split_arg in
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######################################################
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# Split some options along whitespace. This disallows
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# options that contain whitespace, but it allows us to
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# handle transformations that transform one arg into
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# several.
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######################################################
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yes)
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for i in $arg; do
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append_queue cmdbuf "$i"
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$debug_log $wrapperlog " (logic) push: $i"
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done
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;;
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######################################################
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# Everything else goes into the command buffer unchanged.
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######################################################
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no)
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append_queue cmdbuf "$arg"
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$debug_log $wrapperlog " (logic) push: $arg"
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;;
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esac
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;;
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*)
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append_queue cmdbuf "$arg"
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$debug_log $wrapperlog " (logic) push: $arg"
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;;
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esac
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done
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