osd-contiki/tools/cooja/examples/jni_test/level4/Level4.java

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/*
* Copyright (c) 2006, Swedish Institute of Computer Science.
* All rights reserved.
*
* 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*
* $Id: Level4.java,v 1.1 2006/08/21 12:12:59 fros4943 Exp $
*/
import java.io.*;
import java.util.Vector;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Level4 {
static {
System.load(new File("level4.library").getAbsolutePath());
}
final static private String bssSectionAddrRegExp =
"^.bss[ \t]*0x([0-9A-Fa-f]*)[ \t]*0x[0-9A-Fa-f]*[ \t]*$";
final static private String bssSectionSizeRegExp =
"^.bss[ \t]*0x[0-9A-Fa-f]*[ \t]*0x([0-9A-Fa-f]*)[ \t]*$";
final static private String dataSectionAddrRegExp =
"^.data[ \t]*0x([0-9A-Fa-f]*)[ \t]*0x[0-9A-Fa-f]*[ \t]*$";
final static private String dataSectionSizeRegExp =
"^.data[ \t]*0x[0-9A-Fa-f]*[ \t]*0x([0-9A-Fa-f]*)[ \t]*$";
final static private String varAddressRegExpPrefix =
"^[ \t]*0x([0-9A-Fa-f]*)[ \t]*";
final static private String varAddressRegExpSuffix =
"[ \t]*$";
final static private String varNameRegExp =
"^[ \t]*(0x[0-9A-Fa-f]*)[ \t]*([^ ]*)[ \t]*$";
final static private String varSizeRegExpPrefix =
"^";
final static private String varSizeRegExpSuffix =
"[ \t]*(0x[0-9A-Fa-f]*)[ \t]*[^ ]*[ \t]*$";
private native void doCount();
private native int getRefAddress();
public Level4() {
File mapFile = new File("level4.map");
// Check that map file exists
if (!mapFile.exists()) {
System.err.println("No map file could be loaded");
System.exit(1);
}
Vector<String> mapContents = loadMapFile(mapFile);
int relDataSectionAddr = loadRelDataSectionAddr(mapContents);
int dataSectionSize = (int) loadDataSectionSize(mapContents);
int relBssSectionAddr = loadRelBssSectionAddr(mapContents);
int bssSectionSize = (int) loadBssSectionSize(mapContents);
int referenceAddress = getRefAddress();
System.err.println("Reference address: 0x" + Integer.toHexString(referenceAddress));
int offsetRelToAbs = referenceAddress - getRelVarAddr(mapContents, "ref_var");
System.err.println("Offset relative-absolute: 0x" + Integer.toHexString(offsetRelToAbs));
doCount();
doCount();
doCount();
doCount();
doCount();
System.err.println("Level 4 OK!");
}
private static int getRelVarAddr(Vector<String> mapContents, String varName) {
String regExp = varAddressRegExpPrefix + varName + varAddressRegExpSuffix;
String retString = getFirstMatchGroup(mapContents, regExp, 1);
if (retString != null)
return Integer.parseInt(retString.trim(), 16);
else return 0;
}
private static Vector<String> loadMapFile(File mapFile) {
Vector<String> mapContents = new Vector<String>();
try {
BufferedReader in =
new BufferedReader(
new InputStreamReader(
new FileInputStream(mapFile)));
while (in.ready())
{
mapContents.add(in.readLine());
}
} catch (FileNotFoundException e) {
System.err.println("File not found: " + e);
return null;
} catch (IOException e) {
System.err.println("IO error: " + e);
return null;
}
return mapContents;
}
private static int loadRelDataSectionAddr(Vector<String> mapFile) {
String retString = getFirstMatchGroup(mapFile, dataSectionAddrRegExp, 1);
if (retString != null)
return Integer.parseInt(retString.trim(), 16);
else return 0;
}
private static int loadDataSectionSize(Vector<String> mapFile) {
String retString = getFirstMatchGroup(mapFile, dataSectionSizeRegExp, 1);
if (retString != null)
return Integer.parseInt(retString.trim(), 16);
else return 0;
}
private static int loadRelBssSectionAddr(Vector<String> mapFile) {
String retString = getFirstMatchGroup(mapFile, bssSectionAddrRegExp, 1);
if (retString != null)
return Integer.parseInt(retString.trim(), 16);
else return 0;
}
private static int loadBssSectionSize(Vector<String> mapFile) {
String retString = getFirstMatchGroup(mapFile, bssSectionSizeRegExp, 1);
if (retString != null)
return Integer.parseInt(retString.trim(), 16);
else return 0;
}
private static String getFirstMatchGroup(Vector<String> lines, String regexp, int groupNr) {
Pattern pattern = Pattern.compile(regexp);
for (int i=0; i < lines.size(); i++) {
Matcher matcher = pattern.matcher(lines.elementAt(i));
if (matcher.find()) {
return matcher.group(groupNr);
}
}
return null;
}
public static void main(String[] args) {
new Level4();
}
}