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From: Pedro Alves <palves@redhat.com>
To: gdb-patches@sourceware.org
Subject: Re: [PATCH 2/6] PR breakpoints/7143 - Watchpoint does not trigger when first set
Date: Wed, 05 Mar 2014 15:35:00 -0000	[thread overview]
Message-ID: <53174459.1010709@redhat.com> (raw)
In-Reply-To: <1393360363-5603-3-git-send-email-palves@redhat.com>

On 02/25/2014 08:32 PM, Pedro Alves wrote:
> +      if (ecs->event_thread->stepping_over_breakpoint
> +	  && !use_displaced_stepping (get_regcache_arch (regcache)))
>  	{
> -	  struct regcache *thread_regcache = get_thread_regcache (ecs->ptid);
> +	  /* Can't step over more than one breakpoint simultaneously
> +	     without displaced stepping.  */
> +	  gdb_assert (step_over_aspace == NULL);

While working on further changes on top of this series, I noticed
something wrong.  Then I decided to reorder the patches a little,
and add another watchpoint-related test, which then managed to
trigger this assertion, because we

 - stepped a thread
 - got to the thread_hop code without clearing step_over_aspace.

v2 will clear step_over_aspace earlier to avoid that.  It's still
a good idea to do that even though the series ends up eliminating
the thread hop code.

-- 
Pedro Alves


  reply	other threads:[~2014-03-05 15:35 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-25 20:32 [PATCH 0/6] Fix a bunch of run control bugs Pedro Alves
2014-02-25 20:32 ` [PATCH 3/6] Fix missing breakpoing/watchpoint hits, eliminate deferred_step_ptid Pedro Alves
2014-03-04  6:05   ` Yao Qi
2014-03-05 16:10     ` Pedro Alves
2014-02-25 20:32 ` [PATCH 2/6] PR breakpoints/7143 - Watchpoint does not trigger when first set Pedro Alves
2014-03-05 15:35   ` Pedro Alves [this message]
2014-02-25 20:32 ` [PATCH 1/6] PR gdb/16575: stale breakpoint instructions in the code cache Pedro Alves
2014-03-04  4:02   ` Yao Qi
2014-03-05 15:13     ` Pedro Alves
2014-03-05 15:14   ` Pedro Alves
2014-02-25 20:33 ` [PATCH 4/6] Fix for even more missed events; eliminate thread-hop code Pedro Alves
2014-03-05 15:45   ` Pedro Alves
2014-02-25 20:33 ` [PATCH 5/6] Handle multiple step-overs Pedro Alves
2014-02-25 21:08 ` [PATCH 6/6] Make signal-while-stepping-over-bp-other-thread.exp run against remote targets too Pedro Alves
2014-02-26 13:36 ` [PATCH 3.5/6] Multiple Ada task-specific breakpoints at the same address Pedro Alves
2014-02-26 14:19   ` Joel Brobecker
2014-02-26 14:27     ` Pedro Alves

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