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: debug and backtrace Date: Sun, 13 Sep 2009 16:30:38 +0200 Message-ID: <87y6oilxwx.fsf@gnu.org> References: <1252670144.24639.134.camel@localhost.localdomain> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1252852282 4117 80.91.229.12 (13 Sep 2009 14:31:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 13 Sep 2009 14:31:22 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Sun Sep 13 16:31:15 2009 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 4.50) id 1Mmq6k-0006hi-Ef for guile-devel@m.gmane.org; Sun, 13 Sep 2009 16:31:14 +0200 Original-Received: from localhost ([127.0.0.1]:54131 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Mmq6j-0008My-TB for guile-devel@m.gmane.org; Sun, 13 Sep 2009 10:31:13 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Mmq6h-0008Mj-1F for guile-devel@gnu.org; Sun, 13 Sep 2009 10:31:11 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Mmq6c-0008LH-MN for guile-devel@gnu.org; Sun, 13 Sep 2009 10:31:10 -0400 Original-Received: from [199.232.76.173] (port=37756 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Mmq6c-0008LE-Di for guile-devel@gnu.org; Sun, 13 Sep 2009 10:31:06 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:58509) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Mmq6c-0005mF-1Q for guile-devel@gnu.org; Sun, 13 Sep 2009 10:31:06 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.50) id 1Mmq6Z-0006fn-QO for guile-devel@gnu.org; Sun, 13 Sep 2009 16:31:03 +0200 Original-Received: from 78.251.115.235 ([78.251.115.235]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 13 Sep 2009 16:31:03 +0200 Original-Received: from ludo by 78.251.115.235 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 13 Sep 2009 16:31:03 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 40 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 78.251.115.235 X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 27 Fructidor an 217 de la =?iso-8859-1?Q?R=E9volutio?= =?iso-8859-1?Q?n?= X-PGP-Key-ID: 0xEA52ECF4 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 821D 815D 902A 7EAB 5CEE D120 7FBA 3D4F EB1F 5364 X-OS: x86_64-unknown-linux-gnu User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) Cancel-Lock: sha1:jccG+us0A2PyUqEVWm/7Rq3iw2c= X-detected-operating-system: by monty-python.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:9311 Archived-At: Hello! Mike Gran writes: > With the default behavior of 1.9.x, REPL debug and backtrace are broken. Indeed, it looks like the VM frames are ignored. Another example: --8<---------------cut here---------------start------------->8--- scheme@(guile-user)> (letrec ((f (lambda (x) (g x))) (g (lambda (x) (x)))) (f (lambda () (make-stack #t)))) $1 = # scheme@(guile-user)> (display-backtrace $1 (current-output-port)) In unknown file: ?: 0* [# #:0:0 ()>] ?: 1* [make-stack #t #t] scheme@(guile-user)> (stack-length $1) $2 = 2 --8<---------------cut here---------------end--------------->8--- as opposed to: --8<---------------cut here---------------start------------->8--- guile> (letrec ((f (lambda (x) (g x))) (g (lambda (x) (x)))) (f (lambda () (make-stack #t)))) $1 = # guile> (display-backtrace $1 (current-output-port)) In unknown file: ?: 0* [primitive-eval (letrec ((f #) (g #)) (f (lambda () #)))] 1: 1* (letrec ((f (lambda # #)) (g (lambda # #))) (f (lambda () (make-stack #t)))) 1: 2 [f #] ... 1: 3 [gsubr-apply # #t] guile> (stack-length $1) $2 = 4 --8<---------------cut here---------------end--------------->8--- I’ll try to investigate this. Ludo’.