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From: Joel Brobecker <brobecker@adacore.com>
To: Pedro Alves <pedro@codesourcery.com>
Cc: gdb-patches@sourceware.org
Subject: Re: Somewhat sanitize watchpoints with conditions on local  expressions
Date: Mon, 08 Mar 2010 06:34:00 -0000	[thread overview]
Message-ID: <20100308063348.GD3081@adacore.com> (raw)
In-Reply-To: <201003041618.59734.pedro@codesourcery.com>

> 2010-03-04  Pedro Alves  <pedro@codesourcery.com>
> 
> 	gdb/
> 	* breakpoint.c (condition_command): Handle watchpoint conditions.
> 	(is_hardware_watchpoint): Add comment.
> 	(is_watchpoint): New.
> 	(update_watchpoint): Don't reparse the watchpoint's condition
> 	unless necessary.
> 	(WP_IGNORE): New.
> 	(watchpoint_check): Use it.
> 	(bpstat_check_watchpoint): Handle it.
> 	(bpstat_check_breakpoint_conditions): Evaluate watchpoint local
> 	conditions in a frame where it makes sense.
> 	(watch_command_1): Store the innermost block of the condition
> 	expression.
> 	(delete_breakpoint): Delete the watchpoint condition expression.
> 	* breakpoint.h (struct bp_location) <cond>: Update comment.
> 	(struct breakpoint): New field `cond_exp_valid_block'.
> 
> 	gdb/testsuite/
> 	* gdb.base/watch-cond.c, gdb.base/watch-cond.exp: New.

FWIW, this looks fine to me.  And after discussion, I agree it seems
much better to always stop rather than disable the watchpoint when
the condition can no longer be evaluated in the current scope.

-- 
Joel


  parent reply	other threads:[~2010-03-08  6:34 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-04  3:50 Pedro Alves
2010-03-04  5:59 ` Joel Brobecker
2010-03-04  7:57   ` Eli Zaretskii
2010-03-04 16:00   ` Pedro Alves
2010-03-04 16:12     ` Pedro Alves
2010-03-04 16:19       ` Pedro Alves
2010-03-04 16:23         ` Pedro Alves
2010-03-08  6:34         ` Joel Brobecker [this message]
2010-03-10 13:27         ` Pedro Alves
2010-03-04  7:55 ` Eli Zaretskii
2010-03-04 16:05   ` Pedro Alves

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