From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <java-return-26833-listarch-java=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 22405 invoked by alias); 24 Feb 2011 01:19:58 -0000
Received: (qmail 22388 invoked by uid 22791); 24 Feb 2011 01:19:57 -0000
X-SWARE-Spam-Status: No, hits=-1.8 required=5.0	tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,TW_GC
X-Spam-Check-By: sourceware.org
Received: from mail-fx0-f47.google.com (HELO mail-fx0-f47.google.com) (209.85.161.47)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 24 Feb 2011 01:19:53 +0000
Received: by fxm8 with SMTP id 8so56477fxm.20        for <multiple recipients>; Wed, 23 Feb 2011 17:19:51 -0800 (PST)
MIME-Version: 1.0
Received: by 10.223.81.76 with SMTP id w12mr250642fak.26.1298510390939; Wed, 23 Feb 2011 17:19:50 -0800 (PST)
Received: by 10.223.79.68 with HTTP; Wed, 23 Feb 2011 17:19:50 -0800 (PST)
Date: Thu, 24 Feb 2011 01:19:00 -0000
Message-ID: <AANLkTin-ZzjX2EA5HcxCe_a2UuwcexJzAgDaV8namDFz@mail.gmail.com>
Subject: Must unwind in gcc be ported for gcj?
From: majia gm <gmmajia@gmail.com>
To: Java List <java@gcc.gnu.org>
Cc: gcc-help@gcc.gnu.org
Content-Type: text/plain; charset=ISO-8859-1
Mailing-List: contact java-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <java.gcc.gnu.org>
List-Id: <java.gcc.gnu.org>
List-Subscribe: <mailto:java-subscribe@gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/java/>
List-Post: <mailto:java@gcc.gnu.org>
List-Help: <mailto:java-help@gcc.gnu.org>, <http://gcc.gnu.org/ml/#faqs>
Sender: java-owner@gcc.gnu.org
X-SW-Source: 2011-02/txt/msg00004.txt.bz2

Hi, everyone.

I'm porting gcj (gcc-4.4.2) to another platform. Right now the gij
fails when interpreting the following program.

File A.java:

import B;
public class A{

	public static void main(String args[])
	{
		try{
			B b=(B)Class.forName("B").newInstance();
		catch(Exception e)
		{
			System.out.println("Cannot find Class B");
		}
	}
}

File B.java:

public class B
{}

I use gdb to track gij, and I found GetCallingClass() in forName()
returns NULL, then the bootstrap loader is used to search the Class B
but with no result. Should the Class B has the same class loader, the
system class loader as the Class A dose?

Then I track the GetCallingClass(), and I found it needs the unwind
function provided by gcc.  Must I port the unwind function?