From: dan@debian.org (Daniel Jacobowitz)
To: linux-arm-kernel@lists.infradead.org
Subject: 32-bit Thumb-2 breakpoints
Date: Mon, 11 Jan 2010 19:22:01 -0500 [thread overview]
Message-ID: <20100112002201.GA14280@caradoc.them.org> (raw)
In-Reply-To: <20100112001728.GB4465@shareable.org>
On Tue, Jan 12, 2010 at 12:17:28AM +0000, Jamie Lokier wrote:
> And therefore, would it be possible to modify the CPSR when
> single-stepping to change the IT state so that the instruction
> following the next one, i.e. the breakpoint, is unconditional?
> So you only need one breakpoint after all.
Yes, I thought about doing this. However, the many combinations of
ways you'd have to restore the modified CPSR gave me a fright. I
don't think it's a robust solution. It's just different enough from
out-of-line stepping to be unable to share the code.
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2010-01-12 0:22 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-11 21:58 32-bit Thumb-2 breakpoints Daniel Jacobowitz
2010-01-11 22:35 ` Russell King - ARM Linux
2010-01-11 22:54 ` Daniel Jacobowitz
2010-01-11 23:10 ` Jamie Lokier
2010-01-11 23:15 ` Russell King - ARM Linux
2010-01-12 0:15 ` Jamie Lokier
2010-01-11 23:17 ` Daniel Jacobowitz
2010-01-12 0:17 ` Jamie Lokier
2010-01-12 0:22 ` Daniel Jacobowitz [this message]
2010-02-03 17:23 ` Jamie Lokier
2010-02-03 17:44 ` Daniel Jacobowitz
2010-02-04 22:46 ` Pavel Machek
2010-01-11 23:31 ` Russell King - ARM Linux
2010-01-11 23:51 ` Daniel Jacobowitz
2010-01-12 9:53 ` Catalin Marinas
2010-01-12 10:34 ` Catalin Marinas
2010-01-12 14:25 ` Daniel Jacobowitz
2010-01-28 20:21 ` Daniel Jacobowitz
2010-02-02 22:43 ` Russell King - ARM Linux
2010-02-03 0:50 ` Daniel Jacobowitz
2010-02-03 11:52 ` Catalin Marinas
2010-02-03 13:28 ` Russell King - ARM Linux
2010-02-03 13:48 ` Daniel Jacobowitz
2010-02-03 14:43 ` Russell King - ARM Linux
2010-02-03 14:56 ` Daniel Jacobowitz
2010-02-03 13:59 ` Jamie Iles
2010-02-03 14:40 ` Russell King - ARM Linux
2010-02-03 15:31 ` Jamie Iles
2010-02-03 16:01 ` Will Deacon
2010-02-03 15:02 ` Matthieu CASTET
2010-02-03 15:04 ` Catalin Marinas
2010-02-03 15:19 ` Nicolas Pitre
2010-02-03 15:19 ` Daniel Jacobowitz
2010-02-03 15:30 ` Russell King - ARM Linux
2010-02-03 15:35 ` Daniel Jacobowitz
2010-02-03 16:35 ` Russell King - ARM Linux
2010-02-03 17:45 ` Daniel Jacobowitz
2010-02-03 15:35 ` Nicolas Pitre
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