From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: ludo@gnu.org (Ludovic =?iso-8859-1?Q?Court=E8s?=) Newsgroups: gmane.lisp.guile.devel Subject: Re: A Working (but Minimal) JIT Date: Sun, 28 Nov 2010 23:36:02 +0100 Message-ID: <87aaktyt2l.fsf@gnu.org> References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: dough.gmane.org 1290983788 24361 80.91.229.12 (28 Nov 2010 22:36:28 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 28 Nov 2010 22:36:28 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Sun Nov 28 23:36:24 2010 Return-path: Envelope-to: guile-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1PMpr6-00042N-1M for guile-devel@m.gmane.org; Sun, 28 Nov 2010 23:36:24 +0100 Original-Received: from localhost ([127.0.0.1]:54879 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PMpr5-0006b8-IU for guile-devel@m.gmane.org; Sun, 28 Nov 2010 17:36:23 -0500 Original-Received: from [140.186.70.92] (port=52472 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PMpqz-0006a7-W1 for guile-devel@gnu.org; Sun, 28 Nov 2010 17:36:18 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PMpqy-0008Ik-U2 for guile-devel@gnu.org; Sun, 28 Nov 2010 17:36:17 -0500 Original-Received: from lo.gmane.org ([80.91.229.12]:34278) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PMpqy-0008Ig-NK for guile-devel@gnu.org; Sun, 28 Nov 2010 17:36:16 -0500 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1PMpqy-0003yJ-5c for guile-devel@gnu.org; Sun, 28 Nov 2010 23:36:16 +0100 Original-Received: from yoda.fdn.fr ([80.67.169.18]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 28 Nov 2010 23:36:16 +0100 Original-Received: from ludo by yoda.fdn.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 28 Nov 2010 23:36:16 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 15 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: yoda.fdn.fr X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 8 Frimaire an 219 de la =?iso-8859-1?Q?R=E9volution?= X-PGP-Key-ID: 0xEA52ECF4 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 83C4 F8E5 10A3 3B4C 5BEA D15D 77DD 95E2 EA52 ECF4 X-OS: x86_64-unknown-linux-gnu User-Agent: Gnus/5.110011 (No Gnus v0.11) Emacs/23.2 (gnu/linux) Cancel-Lock: sha1:xNkpIUEZh2obXAoC0oo7Bge5MI0= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.devel:11215 Archived-At: Hi! >> * A uniform way to invoke native code from the VM, and VM code from >> native code -- *preserving tail calls*. This seems to require either >> trampolines within the VM or platform-specific tail-call assembly. > > This one could be hard. I can make JITed code call the VM as a tail > call, because libjit will generate tail calls if you ask it to, but I > don't see how to get from C code to JIT code without pushing onto the > stack without either some assembly code or a trampoline. You could cheat and assume that the C compiler does TCO (GCC 4.x does). Thanks, Ludo’.