#!/bin/sh
#
# Print gdb command to load a module's symbols
#
# Copyright (C) 2006 Panasas, Inc.  All rights reserved.
# Copyright (C) 2006 Benny Halevy
#
# This program 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 2 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.
#
# Usage: add-symbol-file module
#   module can be either the module name or path to the module object.
#
# Note: When used in UML, this script must run in UML's context in order
#       to access /sys/module/$mod/sections/.* to get the dynamic relocation
#       addresses but the module path must be valid in gdb's context so that
#       gdb can load the object.
#
progname=`basename $0`
mod=$1
if [ "$mod" = "" ]; then
	echo Usage: `$progname` module 1>&2
	exit 1
fi
if [[ -e "$mod" || "$mod" == */* ]]; then
	obj="$mod"
else
	rel=`uname -r`
	modpath="/lib/modules/$rel/kernel"
	obj=`find $modpath -name "$mod" -o -name "$mod.ko" -o -name "$mod.o" | head -1`
	if [ ! -e "$obj" ]; then
		echo "$progname: $mod was not found in $modpath" 1>&2
		exit 1
	fi
fi
mod=`basename $mod | sed 's/\..*o$//'`
dir=/sys/module/$mod/sections
if [ ! -d $dir ]; then
	echo "$progname: $dir not found" 1>&2
	exit 1
fi

s="`cat $dir/.text`"
for i in .rodata .data .bss; do
	s="$s -s $i `cat $dir/$i`"
done

echo "add-symbol-file $obj $s"