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|
# $NetBSD: arg-source,v 1.14 2007/09/11 08:33:11 rillig 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.
# This script manages a buffer through which arguments from the command
# line are funneled. Along the way, the arguments are potentially
# merged and split in various ways to canonicalize their representation.
# This script should be sourced within a loop and upon exiting returns
# an argument in $arg.
#
# This is done by pushing the next command-line argument onto a queue,
# then using a processing loop to pop an argument off of the top of
# the queue, transform it, and possibly push more arguments back onto
# the queue.
# Push arguments from the command line into the argument buffer.
while $test $# -gt 0; do
arg="$1"; shift
case $arg in
##############################################################
# Merge "-I /dir" into a single "-I/dir". Same for -L, -R.
##############################################################
-[DILR])
nextarg="$1"; shift
case "$nextarg" in
-*) msg_log $wrapperlog "WARNING: [arg-source] An $arg option must not be followed by another option, $nextarg." ;;
esac
shquote "$nextarg"; nextarg="$shquoted"
append_queue argbuf "$arg$nextarg"
$debug_log $wrapperlog " (arg-source) push: $arg$nextarg"
;;
##############################################################
# Split -Wl,option1,option2 into -Wl,option1 -Wl,option2 and
# process them again.
#
# XXX: The sunpro manual page says: A comma can be part of an
# argument by escaping it with an immediately preceding
# backslash. The manual pages for gcc and mipspro do not
# mention commas in those options at all.
##############################################################
-Wl,*,*)
$debug_log $wrapperlog " (arg-source) before-split: $arg $*"
saved_IFS="$IFS"
new_args=""
IFS=","
for o in ${arg#-Wl,}; do
IFS="$saved_IFS"
shquote "$o"; o="$shquoted"
new_args="$new_args -Wl,$o"
done
IFS="$saved_IFS"
eval "set args $new_args \"\$@\""; shift
$debug_log $wrapperlog " (arg-source) after-split: $*"
continue
;;
##############################################################
# Split "-Wl,-R/dir1:/dir2" into "-Wl,-R/dir1 -Wl,-R/dir2".
# Same for -R and -Wl,-rpath and -Wl,-rpath-link.
##############################################################
-R*:*|-Wl,-R*:*|\
-Wl,-rpath,*:*|-Wl,-rpath-link,*:*|-Wl,--rpath,*:*)
case $arg in
-R*) R="-R" ;;
-Wl,-R*) R="-Wl,-R" ;;
-Wl,-rpath,*) R="-Wl,-rpath," ;;
-Wl,-rpath-link,*) R="-Wl,-rpath-link," ;;
-Wl,--rpath,*) R="-Wl,--rpath," ;;
esac
list="${arg#$R}"
save_IFS="${IFS}"; IFS=":"
for dir in $list; do
IFS="${save_IFS}"
shquote "$dir"; dir="$shquoted"
append_queue argbuf "$R$dir"
$debug_log $wrapperlog " (arg-source) push: $R$dir"
done
IFS="${save_IFS}"
;;
##############################################################
# Merge and split "-Wl,-R -Wl,/dir1:/dir2" into
# "-Wl,-R/dir1 -Wl,-R/dir2". Same for -Wl,-rpath and
# -Wl,-rpath-link.
##############################################################
-Wl,-R|-Wl,-rpath|-Wl,-rpath-link|-Wl,--rpath)
nextarg="$1"; shift
case $arg in
-Wl,-R) R="-Wl,-R" ;;
-Wl,-rpath) R="-Wl,-rpath," ;;
-Wl,-rpath-link) R="-Wl,-rpath-link," ;;
-Wl,--rpath) R="-Wl,--rpath," ;;
esac
nextarg="${nextarg#-Wl,}"
case $nextarg in
*:*)
save_IFS="${IFS}"; IFS=":"
for dir in $nextarg; do
IFS="${save_IFS}"
shquote "$dir"; dir="$shquoted"
append_queue argbuf "$R$dir"
$debug_log $wrapperlog " (arg-source) push: $R$dir"
done
IFS="${save_IFS}"
;;
*)
shquote "$nextarg"; nextarg="$shquoted"
append_queue argbuf "$R$nextarg"
$debug_log $wrapperlog " (arg-source) push: $R$nextarg"
;;
esac
;;
##############################################################
# "-Xlinker arg" is the equivalent of "-Wl,arg" so convert it
# here before queueing it up.
##############################################################
-Xlinker)
nextarg="$1"; shift
case $nextarg in
-Wl,*)
append_queue argbuf "$nextarg"
$debug_log $wrapperlog " (arg-source) push: $nextarg"
;;
*)
shquote "$nextarg"; nextarg="$shquoted"
append_queue argbuf "-Wl,$nextarg"
$debug_log $wrapperlog " (arg-source) push: -Wl,$nextarg"
;;
esac
;;
##############################################################
# Remember whether running the linker is desired.
##############################################################
-c|-S|-E)
dont_link=yes
append_queue argbuf "$arg"
$debug_log $wrapperlog " (arg-source) push: $arg"
;;
##############################################################
# For everything else, just queue it up.
##############################################################
*)
append_queue argbuf "$arg"
$debug_log $wrapperlog " (arg-source) push: $arg"
;;
esac
done
|
