#!/bin/bash
#
# opreport_module is a script to generate profiling information
# for a module. It should automate the process.
#
# NOTE that his needs to be run as root to create and remove the required
# symlinks
#
# Copyright 2005
# Read the file COPYING
#
# Authors: Will Cohen

# print help message
do_help()
{ 
   echo -en "Usage:\t`basename $0`"
   echo -e " module_name [arguments for opreport]"
   exit 1
}

# Figure out which version of oprofile is being used.
OP_VERSION=`opcontrol -v|awk '{print $3}'`

# need to warn that make sure that data taken for the kernel running
# check arguments
# there should be one
MODULE_NAME=`basename $1`

# find module path
MODULE_DIRECTORY="/lib/modules/`uname -r`/"
MODULE_PATH=`find $MODULE_DIRECTORY -name "$MODULE_NAME.ko"`

if test ! -f $MODULE_PATH; then
	#try .o files before giving up
	MODULE_PATH=`find $MODULE_DIRECTORY -name "$MODULE_NAME.o"`
	if test ! -f $MODULE_PATH; then
		echo "Unable to find a module for $MODULE_NAME" >&2
		exit 1
	fi
fi

# check where oprofile saved data
#  /module
#  /lib/module/uname/...
#  see if the module file exists
OPROF_MOD_LOCATION="/$MODULE_NAME"
# 	if not make the link
if test ! -f $OPROF_MOD_LOCATION; then
    #make the link
    ln -s $MODULE_PATH $OPROF_MOD_LOCATION
fi
# do the analsysis
shift 1
case "$OP_VERSION" in
0.5*)	oprofpp $OPROF_MOD_LOCATION $@ ;;
0.6*)	opreport image:$OPROF_MOD_LOCATION $@ ;;
0.7*)	opreport image:$OPROF_MOD_LOCATION $@ ;;
0.8*)	opreport image:$OPROF_MOD_LOCATION $@ ;;
0.9*)	opreport image:$OPROF_MOD_LOCATION $@ ;;
esac
# undo any symlink
if test  -L $OPROF_MOD_LOCATION; then
    #make the link
    rm $OPROF_MOD_LOCATION
fi