view extra/ar @ 273:1409debcb1a0

Fix crash on listing when nested noexpand macros are used Macros flagged noexpand were causing a segfault during listing. The problem was incorrect accounting for nesting levels for noexpand macros causing the listing handler to fall off the end of the program in certain circumstances and in other circumstances it would fail to suppress expansion. Both the segfault in the case of misbehaviour and the misbhaviour itself are corrected with this update. If you do not use nested noexpand macros, this bug has no effect.
author William Astle <lost@l-w.ca>
date Sat, 25 May 2013 13:35:46 -0600
parents 84eb35251849
children 92cabf300986
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#!/bin/sh
#
#
# Copyright 2009 by William Astle <lost@l-w.ca>
#
#This file is part of LWTOOLS.
#
#LWTOOLS is free software: you can redistribute it and/or modify it under the
#terms of the GNU General Public License as published by the Free Software
#Foundation, either version 3 of the License, or (at your option) any later
#version.
#
#This program is distributed in the hope that it will be useful, but WITHOUT
#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
#FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
#more details.
#
#You should have received a copy of the GNU General Public License along with
#this program. If not, see <http://www.gnu.org/licenses/>.

# this was based somewhat on the "ar" script from gcc6809

# This script is a frontend to the lwar library manager, to make it
# look more like GNU ar.  Not all ar features are supported here.
# It basically translates ar style options into lwar format.

# Parse and translate command-line options

# ar options cheatsheet:
# r: insert (with replace)
# c: create archive
# u: only replace newer files
# v: verbose mode
# x: extract files from archive

options=$1; shift
case $options in
	rc|cru|-rc|-cru)
		options="--replace --create"
		;;
	rv)
		options="--replace"
		;;
	x|-x)
		options="--extract"
		;;
	-C|--cache)
		exit 0
		;;
	*)
		options="--replace --create $options"
		if [ "$libname" = "" ]; then
			libname=$options
		fi
		;;
esac

if [ "x$options" = "x" ]; then
	echo "ar (m6809): no options given"
	exit 1
fi

# Run the real lwar with translated options.
exec lwar $options $*