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@ 2013-05-06  9:52 Marc Brünink
  2013-05-07  4:43 ` Timer Doug Evans
  2013-05-07 13:28 ` Timer Phil Muldoon
  0 siblings, 2 replies; 8+ messages in thread
From: Marc Brünink @ 2013-05-06  9:52 UTC (permalink / raw)
  To: gdb; +Cc: marc

I want to execute a piece of code at regular intervals. Actually I'm sampling $pc.
(let's not go into detail why I use gdb)

My current solution just starts another process that sends a SIGTRAP to the debugged application. Using a simple script I can print the $pc.

However, I just realised that this approach does not work too well. If gdb is stopped due to a breakpoint it will interpret the received SIGTRAP as another hit of the very same breakpoint. 

Reproduce:
1. Attach to any program
2. Create any breakpoint
3. Wait until breakpoint is hit
4. Send SIGTRAP to debugged application
5. continue

Actually, now that I think about it, I should have anticipated this behaviour.
Is there a better way to execute a piece of code at regular intervals? 


Marc
From gdb-return-42099-listarch-gdb=sources.redhat.com@sourceware.org Mon May 06 17:12:03 2013
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From: Tom Tromey <tromey@redhat.com>
To: Joel Brobecker <brobecker@adacore.com>
Cc: "Miguel A. G L" <miguelnum@gmail.com>, gdb@sourceware.org
Subject: Re: How I can force "gdb" for internal use command-messages only in English?
References: <CAAZ-Otu15DunhUQ_qc2TvB6mXr40TsfADk2iCX1jNmhjBGJL3Q@mail.gmail.com>	<20130502054104.GH3525@adacore.com>
Date: Mon, 06 May 2013 17:12:00 -0000
In-Reply-To: <20130502054104.GH3525@adacore.com> (Joel Brobecker's message of	"Thu, 2 May 2013 09:41:04 +0400")
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>>>>> "Joel" == Joel Brobecker <brobecker@adacore.com> writes:

>> Basically the problem occurs because some commands that sends "gdb" to
>> the IDE are translated into "Spanish" and the IDE looks texts these
>> commands in English.

Joel> If Lazarus is depending on the language used by GDB to be English,
Joel> it sounds like Lazarus should override the user's environment in
Joel> terms of i18n. Typically, the language is determined via the LANG
Joel> and/or LC_* environment variables, so it should be able to force
Joel> English by setting LANG/LC_ALL et al to Eg. "C" before starting GDB.

I just wanted to mention that it would be even better to change Lazarus
to use MI.  This is what MI was made for.

Tom


^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2013-05-07 13:44 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-05-06  9:52 Timer Marc Brünink
2013-05-07  4:43 ` Timer Doug Evans
2013-05-07  6:42   ` Timer Marc Brünink
2013-05-07  8:48     ` Timer Pedro Alves
2013-05-07 10:18       ` Timer Marc Brünink
2013-05-07 10:51         ` Timer Pedro Alves
2013-05-07 13:44         ` Timer Tom Tromey
2013-05-07 13:28 ` Timer Phil Muldoon

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