RE: Can gdbmi process many commands at once?

[Marc Khouzam <marc.khouzam@ericsson.com>]

> From: gdb-owner@sourceware.org [gdb-owner@sourceware.org] on behalf of Vladimir Prus [vladimir@codesourcery.com]
> Sent: March 20, 2015 1:40 AM
> To: gdb@sourceware.org
> Subject: Re: Can gdbmi process many commands at once?
> 
> On 03/20/2015 04:22 AM, Bob Rossi wrote:
> > Hi,
> >
> > I'm trying to determine if GDB/MI has the capability of accepting and
> > working on multiple commands at once?
> >
> > For instance, if I run these commands,
> >      (gdb)
> >      123-interpreter-exec console "p argc"
> >      ~"$3 = 1"
> >      ~"\n"
> >      123^done
> >      (gdb)
> >      234-interpreter-exec console "p argv[1]"
> >      ~"$4 = 0x0\n"
> >      234^done
> >
> > Is there any mode in which the command,
> >      234-interpreter-exec console "p argv[1]"
> > will be worked on before
> >      123-interpreter-exec console "p argc"
> > is finished?
> >
> > The implication is that i'm expecting to have at most 1 command active
> > with GDB at a time. I'm curious if there is a situation where a front
> > end could have many active commands at a time. By active I mean,
> > I issue several commands, and then some time later, I get a response
> > on each of these, in any order.
> 
> Bob,
> 
> it is not possible with the current GDB. All of the commands are executed in the single
> thread GDB has, in the order they were received.
> 
> It is possible, in theory, that somebody will require GDB in node.js, or introduce asynchronous
> operation using boost.asio or similar, but that's quite unlikely scenario.

Eclipse, for example, is dependent on MI commands being processed as they are
sent.  It allows the front-end to send multiple commands at once (Eclipse goes up to 3) without
worrying about it causing problems of ordering.

Marc
From gdb-return-44252-listarch-gdb=sources.redhat.com@sourceware.org Fri Mar 20 15:38:55 2015
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From: Mike Frysinger <vapier@gentoo.org>
To: Joel Sherrill <joel.sherrill@oarcorp.com>
Cc: gdb@sourceware.org
Subject: Re: Multiple Simulators Link Failure on Head
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On 20 Mar 2015 08:16, Joel Sherrill wrote:
> Multiple targets fail to link with sim_addr_range_hit_p. The
> targets are:

are you doing incremental builds ?  or did you build entirely from scratch ?  
some changes landed recently that would break incremental, so you should build 
the sim dir from scratch.

how exactly did you run configure ?  how about `make` ?

i build every sim target myself and run their testsuites before i push new sim 
commits ...
-mike

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