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/*******************************************************************************
* Copyright (c) 2000, 2004 QNX Software Systems and others. All rights
* reserved. This program and the accompanying materials are made available
* under the terms of the Common Public License v1.0 which accompanies this
* distribution, and is available at http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors: QNX Software Systems - Initial API and implementation
******************************************************************************/
package org.eclipse.cdt.utils.elf.parser;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import org.eclipse.cdt.utils.Addr2line;
import org.eclipse.cdt.utils.CPPFilt;
import org.eclipse.cdt.utils.Objdump;
import org.eclipse.cdt.utils.elf.Elf;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
/*
* GNUBinaryObject
*/
public class GNUElfBinaryObject extends ElfBinaryObject {
private Addr2line addr2line;
/**
* @param parser
* @param path
*/
public GNUElfBinaryObject(GNUElfParser parser, IPath path) {
super(parser, path);
}
public Addr2line getAddr2line(boolean autodisposing) {
if (!autodisposing) {
GNUElfParser parser = (GNUElfParser) getBinaryParser();
return parser.getAddr2line(getPath());
}
if (addr2line == null) {
GNUElfParser parser = (GNUElfParser) getBinaryParser();
addr2line = parser.getAddr2line(getPath());
if (addr2line != null) {
timestamp = System.currentTimeMillis();
Runnable worker = new Runnable() {
public void run() {
long diff = System.currentTimeMillis() - timestamp;
while (diff < 10000) {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
break;
}
diff = System.currentTimeMillis() - timestamp;
}
stopAddr2Line();
}
};
new Thread(worker, "Addr2line Reaper").start(); //$NON-NLS-1$
}
} else {
timestamp = System.currentTimeMillis();
}
return addr2line;
}
synchronized void stopAddr2Line() {
if (addr2line != null) {
addr2line.dispose();
}
addr2line = null;
}
protected CPPFilt getCPPFilt() {
GNUElfParser parser = (GNUElfParser) getBinaryParser();
return parser.getCPPFilt();
}
protected Objdump getObjdump() {
GNUElfParser parser = (GNUElfParser) getBinaryParser();
return parser.getObjdump(getPath());
}
/**
* @see org.eclipse.cdt.core.model.IBinaryParser.IBinaryFile#getContents()
*/
public InputStream getContents() {
InputStream stream = null;
Objdump objdump = getObjdump();
if (objdump != null) {
try {
byte[] contents = objdump.getOutput();
stream = new ByteArrayInputStream(contents);
} catch (IOException e) {
// Nothing
}
objdump.dispose();
}
if (stream == null) {
stream = super.getContents();
}
return stream;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.utils.elf.parser.ElfBinaryObject#addSymbols(org.eclipse.cdt.utils.elf.Elf.Symbol[],
* int, java.util.List)
*/
protected void addSymbols(Elf.Symbol[] array, int type, List list) {
CPPFilt cppfilt = getCPPFilt();
Addr2line addr2line = getAddr2line(false);
for (int i = 0; i < array.length; i++) {
String name = array[i].toString();
if (cppfilt != null) {
try {
name = cppfilt.getFunction(name);
} catch (IOException e1) {
cppfilt = null;
}
}
long addr = array[i].st_value;
long size = array[i].st_size;
if (addr2line != null) {
try {
String filename = addr2line.getFileName(addr);
// Addr2line returns the funny "??" when it can not find
// the file.
IPath file = (filename != null && !filename.equals("??")) ? new Path(filename) : Path.EMPTY; //$NON-NLS-1$
int startLine = addr2line.getLineNumber(addr);
int endLine = addr2line.getLineNumber(addr + size - 1);
list.add(new GNUSymbol(this, name, type, addr, size, file, startLine, endLine));
} catch (IOException e) {
}
} else {
list.add(new GNUSymbol(this, name, type, addr, size));
}
}
if (cppfilt != null) {
cppfilt.dispose();
}
if (addr2line != null) {
addr2line.dispose();
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.core.runtime.PlatformObject#getAdapter(java.lang.Class)
*/
public Object getAdapter(Class adapter) {
if (adapter == Addr2line.class) {
return getAddr2line(false);
} else if (adapter == CPPFilt.class) {
return getCPPFilt();
}
return super.getAdapter(adapter);
}
}
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