/*
* @(#)CVMOffsetsHeader.java 1.15 06/10/10
*
* Copyright 1990-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* 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 version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*
*/
package runtime;
import consts.Const;
import jcc.Util;
import util.*;
import components.*;
import vm.*;
import java.io.PrintStream;
import java.util.Enumeration;
import java.util.Vector;
import java.util.Hashtable;
public class CVMOffsetsHeader extends HeaderDump {
private String cdelimClassName = null;
public CVMOffsetsHeader( ){
super( '_' );
}
private void prolog(){
o.println("/* DO NOT EDIT THIS FILE - it is machine generated */\n" +
"#include \"javavm/include/defs.h\"\n" +
"#include \"javavm/include/objects.h\"\n" +
"#include \"javavm/include/classes.h\"\n" );
o.println("/* Header for class "+className+" */\n");
String includeName = "_CVM_OFFSETS_"+cdelimClassName;
o.println("#ifndef "+includeName);
o.println("#define "+includeName+"\n");
}
private void epilog(){
o.println("\n#endif");
}
synchronized public boolean
dumpHeader( ClassInfo c, PrintStream outfile ){
boolean didWork = false;
o = outfile;
className = c.className;
cdelimClassName = strsub(className, CDelim);
prolog();
// Note: Should deal with > 255 fields.
// Today is not that day. Just do the simple case.
FieldInfo m[] = c.fields;
if ( (m == null) || (m.length== 0)){
outfile.println("/* No fields for class "+cdelimClassName+" */\n");
return true;
}
int nfields = m.length;
String prefix = "CVMoffsetOf"+cdelimClassName+"_";
for ( int i = 0; i < nfields; i++ ){
FieldInfo f = m[i];
// static members use simple byte offset
// instance members include size of header info
if ( !f.isStaticMember() ){
didWork = true;
outfile.print("#define ");
outfile.print(prefix + f.name.string + " \t");
outfile.println("CVM_FIELD_OFFSET("+f.instanceOffset+")");
}
}
if (!didWork) {
outfile.println("/* No instance fields for class "+cdelimClassName+" */\n");
}
epilog();
return true;
}
}