From: Helmut Eller <eller.helmut@gmail.com>
To: emacs-devel@gnu.org
Subject: Re: Watchpoints for emacs lisp.
Date: Sat, 15 May 2010 14:43:40 +0200 [thread overview]
Message-ID: <m28w7l49oj.fsf@gmail.com> (raw)
In-Reply-To: 28567880.post@talk.nabble.com
* alin.s [2010-05-15 13:56+0200] writes:
> Suppose that we have the symbol
>
> X = ( 3 . ( 4 . some_cons ) )
>
> and
>
> Y = some_cons.
>
> Suppose that I have set the watch bit on X, but not on Y.
>
> In these conditions, modifying Y will not stop into the watchpoint of X.
>
> That means that setting a watchpoint on a symbol X, should be a recursive
> operation, id est, setting recursively a :watch: field for all the
> cons-cells, symbols, strings, etc, which are present in X.
>
> That means that we need to insert a watch field in all lisp data
> strucutures, not only n symbol, etc
>
> Is that algorithm right ?
Can't you use the MMU for this? Protect the page(s) the watched object
is on; in the SIGSEGV handler set the QUIT flag and store some info in a
global place so that the debugger can figure out which object triggered
the watchpoint.
Helmut
next prev parent reply other threads:[~2010-05-15 12:43 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-10 16:28 Watchpoints for emacs lisp alin.s
2010-05-11 11:59 ` Richard Stallman
2010-05-11 12:54 ` alin.s
2010-05-11 13:43 ` Ken Raeburn
2010-05-11 14:10 ` Stefan Monnier
2010-05-11 15:37 ` alin.s
2010-05-15 11:16 ` alin.s
2010-05-15 11:24 ` alin.s
2010-05-15 11:44 ` alin.s
2010-05-15 11:56 ` alin.s
2010-05-15 12:43 ` Helmut Eller [this message]
2010-05-15 13:06 ` alin.s
2010-05-15 17:48 ` Stefan Monnier
2010-05-16 13:07 ` alin.s
2010-05-16 13:09 ` Lennart Borgman
2010-05-16 13:42 ` alin.s
2010-05-16 16:28 ` Lennart Borgman
2010-05-16 19:46 ` alin.s
2010-05-16 20:42 ` Stefan Monnier
2010-05-16 21:10 ` alin.s
2010-05-17 13:24 ` Stefan Monnier
2010-05-15 12:15 ` Andreas Schwab
2010-05-15 17:43 ` Stefan Monnier
2010-05-16 13:05 ` alin.s
2010-05-16 15:03 ` Chad Brown
2010-05-16 19:44 ` alin.s
2010-05-16 21:31 ` alin.s
2010-05-16 22:38 ` alin.s
2010-05-16 23:47 ` Lennart Borgman
2010-05-16 23:56 ` alin.s
2010-05-17 15:52 ` alin.s
2010-05-17 16:09 ` Lennart Borgman
2010-05-17 16:40 ` alin.s
2010-05-17 17:00 ` Lennart Borgman
2010-05-17 17:29 ` alin.s
2010-05-17 18:39 ` alin.s
2010-05-17 18:41 ` alin.s
2010-05-17 20:22 ` alin.s
2010-05-17 18:59 ` Eli Zaretskii
2010-05-17 19:04 ` Lennart Borgman
2010-05-17 19:00 ` Chad Brown
2010-05-18 8:22 ` Adrian Robert
2010-05-18 19:46 ` Chad Brown
2010-05-18 22:38 ` Andreas Schwab
2010-05-24 14:36 ` alin.s
2010-05-24 14:46 ` Ken Raeburn
2010-05-26 8:27 ` alin.s
2010-05-24 15:12 ` alin.s
2010-05-24 17:36 ` Jan Djärv
2010-05-24 17:47 ` Stefan Monnier
2010-05-26 10:38 ` alin.s
2010-05-26 13:46 ` Stefan Monnier
2010-05-26 16:49 ` alin.s
2010-05-27 14:08 ` alin.s
2010-05-27 22:05 ` Andreas Schwab
2010-05-28 20:09 ` alin.s
2010-07-06 12:26 ` alin.s
2010-08-10 11:00 ` Stefan Monnier
2010-05-29 4:25 ` tomas
2010-05-19 4:30 ` Ken Raeburn
2010-05-19 6:20 ` Adrian Robert
2010-05-17 19:56 ` Andreas Schwab
-- strict thread matches above, loose matches on Subject: below --
2010-05-11 13:54 A. Soare
2010-05-12 1:53 ` Ken Raeburn
2010-05-12 2:04 ` Stephen J. Turnbull
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