From: Simon Richter <Simon.Richter@hogyros.de>
To: xingxing pan <forandom@gmail.com>
Cc: gdb@sourceware.org
Subject: Re: [HELP]Can GDB for ARM set hard breakpoint when native debugging?
Date: Fri, 28 May 2010 11:20:00 -0000 [thread overview]
Message-ID: <20100528112025.GA18727@richter> (raw)
In-Reply-To: <AANLkTinHIdHmkoXyou1g_CfkOIvKdOFND_tlvYqdvuzb@mail.gmail.com>
Hi,
On Fri, May 28, 2010 at 02:00:24PM +0800, xingxing pan wrote:
> Hey guys, can GDB for ARM set hard breakpoint when native debugging?
On most ARM models, hardware breakpoints are only available through the
JTAG interface.
> I found GDB for i386 use the ptrace(POKE_USER,...) to set hard
> breakpoint. But in ARM's code I can't find such similar facility.
POKE_USER is a software breakpoint -- an instruction is replaced by
something that causes an exception, which is then passed to the
application as a signal, which in turn causes the traced process to stop
and gdb to be notified.
Simon
next prev parent reply other threads:[~2010-05-28 11:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-28 6:00 xingxing pan
2010-05-28 6:22 ` xingxing pan
2010-05-28 9:28 ` Matthew Gretton-Dann
[not found] ` <113ACA888B71994BB56E5CF3704953486BAA6A18D8@BGMAIL02.nvidia.com>
2010-06-01 9:06 ` Will Deacon
2010-05-28 11:20 ` Simon Richter [this message]
2010-06-01 15:06 karthikeyan.s
2010-06-01 15:18 ` Matthew Gretton-Dann
2010-06-03 11:39 ` karthikeyan.s
2010-06-03 11:54 ` Will Deacon
[not found] ` <-3629479195726626766@unknownmsgid>
2010-06-10 14:40 ` karthikeyan.s
2010-06-10 15:03 ` Will Deacon
[not found] ` <-2775908164685299161@unknownmsgid>
2010-06-13 13:00 ` karthikeyan.s
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