gecko-dev/gc/boehm/leaksoup/Addr2Line.java

/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * The Initial Developer of the Original Code is Netscape Communications Corporation.
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 * Contributor(s):
 * Patrick C. Beard <beard@netscape.com>
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/*
  Addr2Line.java

  Invokes the addr2line process to convert library +offset pairs into
  filepath:line values.

  by Patrick C. Beard.
 */

import java.util.*;
import java.io.*;

public class Addr2Line {
    private Process addr2line;
    private BufferedWriter stdin;
    private BufferedReader stdout;
    private BufferedReader stderr;

    public Addr2Line(String library) throws IOException {
	String[] args = { "addr2line", "-C", "-f", "-e", library };
	addr2line = Runtime.getRuntime().exec(args);
	stdin = new BufferedWriter(new OutputStreamWriter(addr2line.getOutputStream()));
	stdout = new BufferedReader(new InputStreamReader(addr2line.getInputStream()));
	stderr = new BufferedReader(new InputStreamReader(addr2line.getErrorStream()));
    }

    public String getLine(String address) throws IOException {
	stdin.write(address + "\n"); stdin.flush();
	String symbol = stdout.readLine();
	String source = stdout.readLine();
	return symbol + "[" + source + "]";
    }
}