From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <java-prs-return-11457-listarch-java-prs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 32107 invoked by alias); 9 Apr 2012 19:41:26 -0000
Received: (qmail 32074 invoked by uid 22791); 9 Apr 2012 19:41:25 -0000
X-SWARE-Spam-Status: No, hits=-4.2 required=5.0
	tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED,TW_GC
X-Spam-Check-By: sourceware.org
Received: from localhost (HELO gcc.gnu.org) (127.0.0.1)
    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 09 Apr 2012 19:41:14 +0000
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: java-prs@gcc.gnu.org
Subject: [Bug java/49258] -ffunction-sections and --gc-sectinons have no
 effect at gcj
Date: Mon, 09 Apr 2012 19:41:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: java
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-49258-8172-R2yhLnWnh8@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-49258-8172@http.gcc.gnu.org/bugzilla/>
References: <bug-49258-8172@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
Mailing-List: contact java-prs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <java-prs.gcc.gnu.org>
List-Subscribe: <mailto:java-prs-subscribe@gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/java-prs/>
List-Post: <mailto:java-prs@gcc.gnu.org>
List-Help: <mailto:java-prs-help@gcc.gnu.org>, <http://gcc.gnu.org/ml/#faqs>
Sender: java-prs-owner@gcc.gnu.org
X-SW-Source: 2012-q2/txt/msg00021.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49258

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-09 19:40:41 UTC ---
(In reply to comment #6)
> and i test a c++ file,it will remove the unused funcitons "notused":

But that is not the same as there is no vtable for hello.
Try:
#include <iostream>

class hello
{
public:
        hello()
        {
        }
        virtual void notused()
        {
                std::cout << "not used";
        }
        virtual void used()
        {
                std::cout << "used";
        }
        virtual ~hello()
        {
        }
}hi;

int main()
{       hello t;
        t.used();
        return 0;
}

And see the result.