From owner-freebsd-sparc64@FreeBSD.ORG Tue Feb 17 22:46:25 2004 Return-Path: Delivered-To: freebsd-sparc64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AD17A16A4CE for ; Tue, 17 Feb 2004 22:46:25 -0800 (PST) Received: from mgr2.xmission.com (mgr2.xmission.com [198.60.22.202]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8FA8143D1D for ; Tue, 17 Feb 2004 22:46:25 -0800 (PST) (envelope-from glewis@eyesbeyond.com) Received: from [198.60.22.203] (helo=mgr3.xmission.com) by mgr2.xmission.com with esmtp (Exim 3.35 #1) id 1AtLTU-0007tx-02 for freebsd-sparc64@freebsd.org; Tue, 17 Feb 2004 23:46:24 -0700 Received: from [207.135.128.145] (helo=misty.eyesbeyond.com) by mgr3.xmission.com with esmtp (Exim 4.30) id 1AtLTR-0007rK-S1 for freebsd-sparc64@freebsd.org; Tue, 17 Feb 2004 23:46:22 -0700 Received: from misty.eyesbeyond.com (localhost.eyesbeyond.com [127.0.0.1]) i1I6kJN2071758 for ; Tue, 17 Feb 2004 23:46:19 -0700 (MST) (envelope-from glewis@eyesbeyond.com) Received: (from glewis@localhost) by misty.eyesbeyond.com (8.12.10/8.12.10/Submit) id i1I6kCi2071743 for freebsd-sparc64@freebsd.org; Tue, 17 Feb 2004 23:46:12 -0700 (MST) (envelope-from glewis@eyesbeyond.com) X-Authentication-Warning: misty.eyesbeyond.com: glewis set sender to glewis@eyesbeyond.com using -f Date: Tue, 17 Feb 2004 23:46:12 -0700 From: Greg Lewis To: freebsd-sparc64@freebsd.org Message-ID: <20040218064612.GA71714@misty.eyesbeyond.com> References: <20040217063042.GA94592@misty.eyesbeyond.com> <20040218045138.GH85686@funkthat.com> Mime-Version: 1.0 Content-Disposition: inline In-Reply-To: <20040218045138.GH85686@funkthat.com> User-Agent: Mutt/1.4.2i Content-Type: text/plain; charset=us-ascii X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on mgr3.xmission.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=8.0 tests=none autolearn=no version=2.63 X-SA-Exim-Mail-From: glewis@eyesbeyond.com X-SA-Exim-Version: 3.1 (built Mon Jan 26 13:00:24 MST 2004) X-SA-Exim-Scanned: Yes Subject: Re: Sparc assembler help (jdk13 port) X-BeenThere: freebsd-sparc64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Sparc List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Feb 2004 06:46:26 -0000 On Tue, Feb 17, 2004 at 08:51:38PM -0800, John-Mark Gurney wrote: > Greg Lewis wrote this message on Mon, Feb 16, 2004 at 23:30 -0700: > > I'm trying to get the jdk13 port running on sparc64. Unfortunately JDK > > 1.3.1 runs on the Sparc in 32 bit mode under Solaris, so there were a > > number of 32 bit vs. 64 bit problems. I think I've got most of the initial > > stage of the build working correctly, however I'm running into some trouble > > with the assembler code which 'translates the "Java" calling convention > > into the "C" * calling convention used in native methods'. Since the code > > was written for 32 bit mode it assumes a pointer can be passed in a single > > 32 bit register, etc. Unfortunately my knowledge of assembler is very > > limited and in particular I know nothing about Sparc assembler. > > > > I'd love to hear from someone who knows some Sparc assembler and in > > particular how FreeBSD calls functions (i.e. how the arguments are > > placed into registers or on the stack). Short of this, some pointers > > to the right information may eventually yield some results. > > I have some experience in assembly, and can try to answer your questions.. Thanks to you and Ken for replying :). > Sparcs put the arguments into the o? registers (upto to 8)... And if we have more than 8 arguments they go on the stack? > You might want to check out www.sparc.com, and look at the SPARCv9 arch > manual... check out chapter 5 which talks about registers... Ok, I've had a little look. Unfortunately much of it is going over my head but it is making some sense. > > The code itself is quite short, however I can't post it due to the way Sun > > licenses their Java source code. If you've compiled any of the jdk* ports > > though, then you've agreed to the appropriate license (Sun Community Source > > License). > > I did d/l the sun java code a while back.. j2sdk-1_3_1-src.tar.gz.. > guess it wasn't as far back as I thought.. :) Well, its a while back, but like I said, 1.3.1 is a whole lot easier than 1.4.2, so I'm trying that first. I'll send followup email to you and Ken off list. Thanks! -- Greg Lewis Email : glewis@eyesbeyond.com Eyes Beyond Web : http://www.eyesbeyond.com Information Technology FreeBSD : glewis@FreeBSD.org