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From: Andrew Cagney <ac131313@cygnus.com>
To: Daniel Jacobowitz <drow@mvista.com>
Cc: Kevin Buettner <kevinb@cygnus.com>, gdb@sources.redhat.com
Subject: Re: gdb and dlopen
Date: Wed, 17 Oct 2001 23:14:00 -0000	[thread overview]
Message-ID: <3BCE733E.1000304@cygnus.com> (raw)
In-Reply-To: <20011017200554.A28537@nevyn.them.org>

> Remember, ptid_get_pid() is the messenger.  The real problem is 
>> elsewhere.  A bit like STREQ() in the symtab code.
> 
> 
> I don't understand what you mean by this.  We certainly need to get at
> the actual PID everywhere PIDGET () is being used, regardless of
> whether it could be hoisted out of loops.

To give an example, instead of accessing multiple thread objects 
simultaneously, GDB has a single global current thread state which it 
swaps in and out (using memcpy() and invalidate all).  As a consequence 
GDB spends its time doing this song and dance where is constantly and 
needlessly checks that the current single global thread is the correct 
current single global thread.

enjoy,
Andrew



  reply	other threads:[~2001-10-17 23:14 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <y3radyrjqf8.wl@paladin.sgrail.com>
2001-10-16 13:15 ` Daniel Jacobowitz
2001-10-16 18:23   ` Kimball Thurston
     [not found]     ` <20011016213252.A8694@nevyn.them.org>
2001-10-16 19:03       ` Daniel Jacobowitz
2001-10-16 20:04         ` Kimball Thurston
2001-10-16 20:17           ` Andrew Cagney
2001-10-16 22:08             ` Daniel Jacobowitz
2001-10-16 22:19               ` Daniel Jacobowitz
     [not found]                 ` <y3rzo6qx1ej.wl@paladin.sgrail.com>
2001-10-16 22:52                   ` Kimball Thurston
2001-10-17  8:07                 ` Mark Kettenis
2001-10-17  8:29                   ` H . J . Lu
2001-10-17 11:09                   ` Daniel Jacobowitz
2001-10-17 14:26                     ` Mark Kettenis
2001-10-17 14:34                       ` Daniel Jacobowitz
2001-10-17  8:54                 ` Andrew Cagney
2001-10-17 15:08                 ` Kevin Buettner
2001-10-17 15:57                   ` Andrew Cagney
2001-10-17 17:05                     ` Daniel Jacobowitz
2001-10-17 23:14                       ` Andrew Cagney [this message]
2001-10-17  8:42               ` Andrew Cagney
2001-10-17 11:15                 ` Daniel Jacobowitz
2001-10-17 12:09                   ` Kimball Thurston
2001-10-17 12:58                     ` Kevin Buettner
2001-11-08  0:22                       ` Daniel Jacobowitz
2001-11-08  8:17                         ` Kevin Buettner
2001-11-08  9:44                           ` Daniel Jacobowitz
2001-11-08 10:49                             ` Kevin Buettner
2001-11-08 11:14                               ` Daniel Jacobowitz
2001-11-08 16:17                                 ` Andrew Cagney
2001-10-16 22:25             ` Kimball Thurston
2001-10-16 15:05 ` H . J . Lu

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