From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <systemtap-return-17453-listarch-systemtap=sources.redhat.com@sourceware.org>
Received: (qmail 26089 invoked by alias); 18 Feb 2011 23:17:25 -0000
Received: (qmail 26081 invoked by uid 22791); 18 Feb 2011 23:17:24 -0000
X-SWARE-Spam-Status: No, hits=-2.8 required=5.0	tests=ALL_TRUSTED,AWL,BAYES_00
X-Spam-Check-By: sourceware.org
Received: from localhost (HELO sourceware.org) (127.0.0.1)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 18 Feb 2011 23:17:20 +0000
From: "jan.kratochvil at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sources.redhat.com
Subject: [Bug tapsets/12500] New: ptrace decoder
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: systemtap
X-Bugzilla-Component: tapsets
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: jan.kratochvil at redhat dot com
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: systemtap at sources dot redhat.com
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields:
Message-ID: <bug-12500-1110@http.sourceware.org/bugzilla/>
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
Date: Fri, 18 Feb 2011 23:17:00 -0000
Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <systemtap.sourceware.org>
List-Subscribe: <mailto:systemtap-subscribe@sourceware.org>
List-Post: <mailto:systemtap@sourceware.org>
List-Help: <mailto:systemtap-help@sourceware.org>, <http://sourceware.org/lists.html#faqs>
Sender: systemtap-owner@sourceware.org
X-SW-Source: 2011-q1/txt/msg00288.txt.bz2

http://sourceware.org/bugzilla/show_bug.cgi?id=12500

           Summary: ptrace decoder
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tapsets
        AssignedTo: systemtap@sources.redhat.com
        ReportedBy: jan.kratochvil@redhat.com


Created attachment 5252
  --> http://sourceware.org/bugzilla/attachment.cgi?id=5252
ptrace decoder.

Tested on:
F14 x86_64
RHEL-6.1 s390+s390x+ppc64
ia64 is untested

There is some room for improvements but it works fine.

probe syscall.ptrace.return
// TODO: _arch_ptrace_return would need to create probe variables - how?
 - A function called from probe cannot create variables like `name'.

s390x:
// FIXME: ptrace of 32-bit debuggers is not caught by SystemTap,
//        use +4 and +8 offsets for them

On RHEL-4/RHEL-5 there may be needed more #ifndef/#define's like now in
tapset/powerpc/syscalls.stp but I did not have systemtap-1.4/HEAD on those
boxes to test it.

-- 
Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.