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From: Gary Benson <gbenson@redhat.com>
To: Pedro Alves <palves@redhat.com>
Cc: gdb-patches@sourceware.org,
	       Philippe Waroquiers <philippe.waroquiers@skynet.be>,
	       Eli Zaretskii <eliz@gnu.org>
Subject: Re: [PATCH] Locate executables on remote stubs without multiprocess extensions
Date: Tue, 12 May 2015 11:03:00 -0000	[thread overview]
Message-ID: <20150512110325.GA14668@blade.nx> (raw)
In-Reply-To: <5550BEA8.6070602@redhat.com>

Pedro Alves wrote:
> On 05/06/2015 06:16 PM, Gary Benson wrote:
> > Gary Benson wrote:
> > @@ -11718,7 +11719,15 @@ remote_pid_to_exec_file
> >    if (filename != NULL)
> >      xfree (filename);
> >
> > -  xsnprintf (annex, sizeof (annex), "%x", pid);
> > +  inf = find_inferior_pid (pid);
> > +  if (inf != NULL && !inf->fake_pid_p)
> 
> This will silently do the wrong thing (retrieve the exec file of
> the server's current thread/process) if this method is ever used
> to try to fetch the exec out of a process that we're _not_ currently
> attached to.  Maybe this should be:
> 
>   if (inf == NULL)
>     internal_error (__FILE__, __LINE__,
>                     "attempt to retrieve exec-file of not-debugged process");
>   if (!inf->fake_pid_p)

Good catch, thanks!

> > > @@ -1144,17 +1144,32 @@ handle_qxfer_exec_file
[snip]
> > > +
> > > +  if (pid < 0)
> > >      return -1;
> > 
> > Oops, this should be "<=".
> 
> This is OK with that change and the point above addressed.

Ok, I've pushed this, thanks Pedro and Eli for the reviews.

Cheers,
Gary

-- 
http://gbenson.net/

  reply	other threads:[~2015-05-12 11:03 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-02  9:48 qXfer:exec-file:read and non multiprocess target Philippe Waroquiers
2015-05-05 11:02 ` Gary Benson
2015-05-05 20:45   ` Philippe Waroquiers
2015-05-06 10:31     ` Gary Benson
2015-05-06 17:10       ` [PATCH] Locate executables on remote stubs without multiprocess extensions Gary Benson
2015-05-06 17:15         ` Eli Zaretskii
2015-05-06 17:16         ` Gary Benson
2015-05-11 14:37           ` Pedro Alves
2015-05-12 11:03             ` Gary Benson [this message]
2015-05-05 15:14 ` qXfer:exec-file:read and non multiprocess target Gary Benson
2015-05-06 10:26   ` [PATCH] Make only user-specified executable filenames sticky Gary Benson
2015-05-06 12:19     ` Pedro Alves
2015-05-06 14:21       ` Pedro Alves
2015-05-06 15:20       ` Gary Benson
2015-05-11 13:57         ` Pedro Alves
2015-05-06 14:46     ` Philippe Waroquiers
2015-05-06 15:41       ` Gary Benson
2015-05-11 13:58         ` Pedro Alves
2015-05-11 20:25       ` Doug Evans
2015-05-11 17:14     ` Don Breazeal
2015-06-05  9:37       ` Gary Benson
2015-06-05 14:54         ` Don Breazeal
2015-07-03 11:14           ` Gary Benson
2015-07-06 12:53             ` Joel Brobecker
2015-07-17 21:48             ` Joel Brobecker
2015-05-11 20:23     ` Doug Evans
2015-05-12 10:36       ` Pedro Alves
2015-05-12 11:13         ` Gary Benson
2015-05-12 11:16           ` Pedro Alves
2015-05-12 13:48             ` Gary Benson
2015-05-12 14:08               ` Pedro Alves
2015-05-12 15:49         ` Doug Evans
2015-05-13  7:55           ` Gary Benson
2015-05-13  9:12             ` Pedro Alves
2015-06-03 17:23               ` Joel Brobecker
2015-06-05 11:22                 ` [PATCH v2] Make only user-specified executable and symbol " Gary Benson
2015-06-07 11:40                   ` Philippe Waroquiers
2015-06-08  9:01                     ` [PATCH v3] " Gary Benson
2015-06-08 19:42                       ` Philippe Waroquiers
2015-07-03 11:01                         ` Gary Benson
2015-07-03 15:44                       ` Pedro Alves
2015-07-06 13:01                         ` Pedro Alves
2015-06-07 12:03                   ` [PATCH v2] " Philippe Waroquiers
2015-06-07 12:13                   ` Philippe Waroquiers
2015-05-13  8:06           ` [PATCH] Make only user-specified executable " Pedro Alves
2015-05-12 16:03         ` Doug Evans
2015-05-13  8:39           ` Pedro Alves

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