#! /bin/sh -f
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#	Copyright (c) 1989 AT&T
#	  All Rights Reserved
#
# Copyright (c) 1993, 2010, Oracle and/or its affiliates. All rights reserved.
#

#	COMMON LORDER
#
#
if test -z $TMPDIR
{
	setvar TDIR = ""/tmp""
} else {
	setvar TDIR = "$TMPDIR"
}
trap "rm -f $TDIR/$Pidsymdef $TDIR/$Pidsymref $TDIR/$Pidtmp; exit"  1 2 13 15
setvar PFX = ''
setvar WHERE = '/usr/bin'

setvar USAGE = ""Usage: ${PFX}lorder file ...""
for i in [@ARGV]
{
	match $i {
	with -*	echo $USAGE;
		exit 2
	}

	if test ! -r $i
	{
		echo "${PFX}lorder: $i: cannot open"
		exit 2;
	}
}

match $Argc {
with 0	echo $USAGE
	exit 2
with 1	match $1 {
	with *.o	set $1 $1
	}
}

#	The following sed script is commented here.
#	The first three expressions in the sed script
#	insures that we only have lines
#	that contain file names and the external
#	declarations associated with each file.
#	The next two parts of the sed script put the pattern
#	(in this case the file name) into the hold space
#	and creates the "filename filename" lines and
#	writes them out. The first part is for .o files,
#	the second is for .o's in archives.
#	The last 2 sections of code are exactly alike but
#	they handle different external symbols, namely the
#	symbols that are defined in the text section, data section, bss
#	section or common symbols and symbols 
#	that are referenced but not defined in this file.
#	A line containing the symbol (from the pattern space) and 
#	the file it is referenced in (from the hold space) is
#	put into the pattern space.
#	If its text, data, bss or common it is written out to the 
#	symbol definition (symdef) file, otherwise it was referenced 
#	but not declared in this file so it is written out to the
#	symbol referenced (symref) file.
#
#
${WHERE}/${PFX}nm -p $ifsjoin(ARGV) 2>$TDIR/$$tmp | sed -e '/^[ 	]*$/d' -e '
	/^[0-9]* R $/d
	/ [a-zFLS] /d
	/[^]]:$/{
		s/://
		h
		s/.*/& &/
		p
		d
	}
	/]:$/{
		s/]://
		s/^.*\[//
		h
		s/.*/& &/
		p
		d
	}
	/ [TDBNCAR] /{
		s/^.* [TDBNCAR] //
		G
		s/\n/ /
		w '$TDIR/$Pidsymdef'
		d
	}
	/ U /{
		s/^.* U //
		G
		s/\n/ /
		w '$TDIR/$Pidsymref'
		d
	}
'
if test -s $TDIR/$Pidtmp
{
	sed -e "s/^${PFX}nm:/${PFX}lorder:/" < $TDIR/$$tmp >&2
	rm -f $TDIR/$Pidsymdef $TDIR/$Pidsymref $TDIR/$Pidtmp
	exit 1
}
sort $TDIR/$Pidsymdef -o $TDIR/$Pidsymdef
sort $TDIR/$Pidsymref -o $TDIR/$Pidsymref
join $TDIR/$Pidsymref $TDIR/$Pidsymdef | sed 's/[^ ]* *//'
rm -f $TDIR/$Pidsymdef $TDIR/$Pidsymref $TDIR/$Pidtmp