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From: Pedro Alves <pedro@palves.net>
To: Marco Barisione <mbarisione@undo.io>,
	Philippe Waroquiers <philippe.waroquiers@skynet.be>
Cc: gdb-patches@sourceware.org
Subject: Re: Add a way to invoke redefined (overridden) GDB commands
Date: Tue, 20 Oct 2020 16:06:12 +0100	[thread overview]
Message-ID: <ad7a4744-0d30-fbd9-8604-0683329d7d7d@palves.net> (raw)
In-Reply-To: <167570B7-6E55-4136-97DB-2D0F2B191B7D@undo.io>

On 10/19/20 8:28 PM, Marco Barisione wrote:
> On 19 Oct 2020, at 19:47, Philippe Waroquiers <philippe.waroquiers@skynet.be> wrote:

>> I am wondering how rename will interact with alias:
>> alias are resolved at definition time, so a rename
>> following an alias might not have the expected effect.
> 
> That’s a very good point. I didn’t consider aliases and hooks.
> 
> My use case is for building on top of existing commands so they can
> be extended/tweaked.  Aliases and hooks need to follow the new
> command, including the ones set by users (so I have no way of knowing
> about them).
> I can’t think of any way of making a rename command work like this.
> 
> Any idea?

In my previous example, where it read:

 (gdb) rename run org_run
 (gdb) define run
 ...

merge those two commands into a single atomic operation?

Like:

 (gdb) rename-define run org_run
 > echo Will run!\n
 > org_run
 > end
 (gdb) run
  Will run!
  [... normal output of run ...]
 (gdb) org_run
  [... normal output of run ...]

Unlike "rename", "rename-define" (strawman name) would take care
of moving the alias and pre/post hooks to the new implementation.

WDYT?

  reply	other threads:[~2020-10-20 15:06 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-14  9:39 Marco Barisione
2020-09-14  9:39 ` [PATCH 1/2] Move the code to execute a cmd_list_element out from execute_command Marco Barisione
2020-10-05  9:08   ` Andrew Burgess
2020-10-05  9:40     ` Marco Barisione
2020-10-05 17:49       ` Andrew Burgess
2020-09-14  9:39 ` [PATCH 2/2] Add a way to preserve redefined GDB commands for later invocation Marco Barisione
2020-09-14 16:18   ` Eli Zaretskii
2020-09-14 16:51     ` Marco Barisione
2020-10-05 10:24   ` Andrew Burgess
2020-10-05 11:44     ` Marco Barisione
2020-10-05 18:11       ` Andrew Burgess
2020-10-06  7:18         ` Marco Barisione
2020-09-28  7:54 ` [PING] Add a way to invoke redefined (overridden) GDB commands Marco Barisione
2020-10-05  7:42   ` Marco Barisione
2020-10-12 11:50 ` Pedro Alves
2020-10-19 17:41   ` Marco Barisione
2020-10-19 18:05     ` Pedro Alves
2020-10-19 18:47       ` Philippe Waroquiers via Gdb-patches
2020-10-19 19:28         ` Marco Barisione
2020-10-20 15:06           ` Pedro Alves [this message]
2020-10-20 18:19             ` Marco Barisione
2020-10-20 18:32               ` Pedro Alves
2020-10-20 15:15         ` Pedro Alves

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