From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-return-43146-listarch-gdb=sources.redhat.com@sourceware.org>
Received: (qmail 5999 invoked by alias); 22 Mar 2014 00:13:14 -0000
Mailing-List: contact gdb-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gdb.sourceware.org>
List-Subscribe: <mailto:gdb-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gdb/>
List-Post: <mailto:gdb@sourceware.org>
List-Help: <mailto:gdb-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: gdb-owner@sourceware.org
Received: (qmail 5988 invoked by uid 89); 22 Mar 2014 00:13:13 -0000
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=-2.9 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW,SPF_PASS,T_RP_MATCHES_RCVD autolearn=ham version=3.3.2
X-HELO: mail-vc0-f178.google.com
Received: from mail-vc0-f178.google.com (HELO mail-vc0-f178.google.com) (209.85.220.178) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Sat, 22 Mar 2014 00:13:13 +0000
Received: by mail-vc0-f178.google.com with SMTP id im17so3450915vcb.9        for <gdb@sourceware.org>; Fri, 21 Mar 2014 17:13:10 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;        d=1e100.net; s=20130820;        h=x-gm-message-state:mime-version:date:message-id:subject:from:to         :content-type;        bh=6sHfwqFjeX3vHXjJmI4+riFJldRq214ajQ+jwFwBwNI=;        b=OXWzs6lrWMjCNqkTi6ep9GsMe/xnnt1vMH1Vwk+S0cZVv2i5IyMd1ea/9CMqmzKpvT         HOf388BEJmZ6aBFBqORlksJLceUdQuxcdic+rqsE4ENmSDVFlxVNahV7UTprlLIWqOWE         hq/XRikL1hxMPzXLnzHadNBApfAxPVKdezu4t5kdoHivTWFia74zeCiOWwkphOjjufKh         QMaq/0hrCU3BgSVNtLDLDxuuEh9pogBVKnQMdlyOXZIjAdAE+lDVc6WLHxssutLTJyos         +qVX7m53INSGovZS4MbTEsjIxBgk76wtWzjim5uLZLXsnNwJkBp3uKLFOxKTbJCqeW3b         Y1Xw==
X-Gm-Message-State: ALoCoQnw916r+aH6Qsr4TUy3x7oYfY0hc32CqMjXCdXtClyb65BBJHEMSZ6OTUo0t91PwmYC9tCsyY/HkPWvHqP8VyFWnMxf8uFeKP7S19VADPtFkGrcYAgXtQUVc/cH4lXyf1XBrm0/dMlqCsAFG7QH/IS1Qsw4sUfn33ZtAeqbtcU4dGSPVATsE8nF6AoKYpGOw9DbXgkS
MIME-Version: 1.0
X-Received: by 10.220.164.80 with SMTP id d16mr39026292vcy.15.1395447190616; Fri, 21 Mar 2014 17:13:10 -0700 (PDT)
Received: by 10.52.13.101 with HTTP; Fri, 21 Mar 2014 17:13:10 -0700 (PDT)
Date: Sat, 22 Mar 2014 00:13:00 -0000
Message-ID: <CADPb22T40jXhHOXiPG7jnHxTXrGEPm=vqZwFMFxGJ+1H4cNwbA@mail.gmail.com>
Subject: Is gdb script execution intended to work this way in async mode?
From: Doug Evans <dje@google.com>
To: gdb <gdb@sourceware.org>
Content-Type: text/plain; charset=UTF-8
X-IsSubscribed: yes
X-SW-Source: 2014-03/txt/msg00063.txt.bz2

Hi.
If I source a script in target-async mode, non-asynchronous execution
commands "finish" immediately in the sense that the following command
in the script is done before the previous command has completed (in
the expected sense - the command completes immediately, so to speak,
but continuations are registered to perform the rest of the command,
e.g. to keep stepping until a "next" has fully completed).

I hope this is a bug.

int
main ()
{
  while (1)
    sleep (1);
}

set target-async on
file a.out
start
source foo.gdb

foo.gdb:
next
next

-->

foo.gdb:2: Error in sourced command file:

Cannot execute this command while the selected thread is running.

Turn on the following for better visualization:
set debug infrun 1
set trace-commands on

The second "next" command is executed before the continuations that
implement the completion of the previous "next" command have, umm,
completed.