From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3224 invoked by alias); 17 Mar 2012 09:59:39 -0000 Received: (qmail 3214 invoked by uid 22791); 17 Mar 2012 09:59:39 -0000 X-SWARE-Spam-Status: No, hits=-6.8 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sat, 17 Mar 2012 09:59:05 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q2H9x4Td026783 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sat, 17 Mar 2012 05:59:04 -0400 Received: from zebedee.pink (ovpn-113-151.phx2.redhat.com [10.3.113.151]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id q2H9x3SY008575; Sat, 17 Mar 2012 05:59:03 -0400 Message-ID: <4F646066.7020701@redhat.com> Date: Sat, 17 Mar 2012 09:59:00 -0000 From: Andrew Haley User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120216 Thunderbird/10.0.1 MIME-Version: 1.0 To: Mao Ito CC: java@gcc.gnu.org Subject: Re: About GCJ compiler References: <76e0b77823de60.4f6410fc@wiscmail.wisc.edu> <7680afae23c379.4f64113a@wiscmail.wisc.edu> <7680d54c23a42c.4f641177@wiscmail.wisc.edu> <7710d5e623e65c.4f6411b4@wiscmail.wisc.edu> <76e0bc9023c05b.4f6411f0@wiscmail.wisc.edu> <7680d99323eb2e.4f641269@wiscmail.wisc.edu> <76809a2f23a3a8.4f6412a5@wiscmail.wisc.edu> <76809b5b23eb8f.4f6412e1@wiscmail.wisc.edu> <771084f62393e8.4f64131e@wiscmail.wisc.edu> <7730a0e223fc01.4f64135a@wiscmail.wisc.edu> <768088d4239769.4f64144b@wiscmail.wisc.edu> <7710d06823a698.4f641487@wiscmail.wisc.edu> <75c0eaa823b240.4f6414c4@wiscmail.wisc.edu> <7770c90323ff49.4f649355@wiscmail.wisc.edu> In-Reply-To: <7770c90323ff49.4f649355@wiscmail.wisc.edu> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact java-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: java-owner@gcc.gnu.org X-SW-Source: 2012-03/txt/msg00058.txt.bz2 On 03/17/2012 04:36 AM, Mao Ito wrote: > > Nice to meet you. I am Mao Ito and a graduate student at the > University of Wisconsin-Madison. > I am working on a course project. My topic is something like "High > Performance Architecture for Java Programming Language on mobile > phones". On this project, I am planning to use GCJ to cross-compile > Java for ARM. > I am planning to add some extra ISAs(Instruction Set > Architecture). But, if I add an extra ISAs, as you know, I have to > generate binary codes corresponding to my new architecture. My > question is if I can modify GCJ for my purpose. Is it possible to > get source codes and customize it? Sure, gcc (and gcj) is free software. Everything can be downloaded and built from gcc.gnu.org/svn/gcc. Adding a new ISA is a big job, though. I'm redirecting this discussion to java@gcc.gnu.org Andrew.