From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7084 invoked by alias); 10 Apr 2008 15:39:18 -0000 Received: (qmail 7075 invoked by uid 22791); 10 Apr 2008 15:39:17 -0000 X-Spam-Check-By: sourceware.org Received: from NaN.false.org (HELO nan.false.org) (208.75.86.248) by sourceware.org (qpsmtpd/0.31) with ESMTP; Thu, 10 Apr 2008 15:38:57 +0000 Received: from nan.false.org (localhost [127.0.0.1]) by nan.false.org (Postfix) with ESMTP id 971A1980F7; Thu, 10 Apr 2008 15:38:55 +0000 (GMT) Received: from caradoc.them.org (22.svnf5.xdsl.nauticom.net [209.195.183.55]) by nan.false.org (Postfix) with ESMTP id 8027698060; Thu, 10 Apr 2008 15:38:55 +0000 (GMT) Received: from drow by caradoc.them.org with local (Exim 4.69) (envelope-from ) id 1JjyrW-0007bh-QN; Thu, 10 Apr 2008 11:38:54 -0400 Date: Thu, 10 Apr 2008 15:49:00 -0000 From: Daniel Jacobowitz To: Jan Kratochvil Cc: Roland McGrath , Doug Evans , GDB Patches , mark.kettenis@xs4all.nl Subject: Re: [patch] Fix Linux attach to signalled/stopped processes Message-ID: <20080410153854.GE21662@caradoc.them.org> Mail-Followup-To: Jan Kratochvil , Roland McGrath , Doug Evans , GDB Patches , mark.kettenis@xs4all.nl References: <20080401223012.GA14076@host0.dyn.jankratochvil.net> <20080401224936.5F0EC26F8DC@magilla.localdomain> <20080410151545.GC21662@caradoc.them.org> <20080410153017.GA4814@host0.dyn.jankratochvil.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080410153017.GA4814@host0.dyn.jankratochvil.net> User-Agent: Mutt/1.5.17 (2007-12-11) X-IsSubscribed: yes Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2008-04/txt/msg00196.txt.bz2 On Thu, Apr 10, 2008 at 05:30:17PM +0200, Jan Kratochvil wrote: > On Thu, 10 Apr 2008 17:15:45 +0200, Daniel Jacobowitz wrote: > > On Tue, Apr 01, 2008 at 03:49:36PM -0700, Roland McGrath wrote: > ... > > > As a gdb user, I have long been annoyed by the behavior on attaching to a > > > stopped process. What I want is for attach to complete immediately and let > > > me examine the process. If I then "cont", the process should go back to > > > what it was doing--sitting in job control stop. Then fg or otherwise > > > sending SIGCONT will wake it up normally, and gdb should stop and tell me > > > about the SIGCONT like normal. > > > > How could GDB put an attached process back into job control stop? > > ptrace (PTRACE_DETACH, child_pid, NULL, (void *) (long) SIGSTOP); Yes, but Roland said "continue" should put the process back into job control sleep - that's what I was asking about. I know how to do it if we're detaching, but not without detaching. -- Daniel Jacobowitz CodeSourcery