From: Mark Kettenis <mark.kettenis@xs4all.nl>
To: pedro@codesourcery.com
Cc: gdb-patches@sourceware.org, yao@codesourcery.com
Subject: Re: [patch] Skip kill-after-signal.exp if hw single-step is not supported
Date: Sun, 24 Jul 2011 11:40:00 -0000 [thread overview]
Message-ID: <201107232247.p6NMlwVx029216@glazunov.sibelius.xs4all.nl> (raw)
In-Reply-To: <201107201605.43767.pedro@codesourcery.com> (message from Pedro Alves on Wed, 20 Jul 2011 16:05:43 +0100)
> From: Pedro Alves <pedro@codesourcery.com>
> Date: Wed, 20 Jul 2011 16:05:43 +0100
>
> Other archs !x86, and other kernels/stubs/servers !Linux that
> can do hardware stepping. If we're going to have a list, invert
> the logic of the check, defaulting to running the test, and leaving
> out archs were we know software stepping is used. Some targets,
> like x86/OpenBSD and MacOS, although can hardware step, can't step
> into a handler.
Just FYI, it's putting breakpoints into the signal trampoline that is
the issue, at least on OpenBSD. Single-stepping should work fine on
OpenBSD/i386 and OpenBSD/amd64 and all other architectures where it's
done in hardware.
next prev parent reply other threads:[~2011-07-23 22:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-19 14:52 Yao Qi
2011-07-20 15:06 ` Jan Kratochvil
2011-07-20 15:12 ` Pedro Alves
2011-07-24 11:40 ` Mark Kettenis [this message]
2011-08-09 14:32 ` Yao Qi
2011-08-09 15:24 ` Matthew Gretton-Dann
2011-08-09 15:50 ` Yao Qi
2011-08-18 4:53 ` ping : " Yao Qi
2011-08-28 14:44 ` Yao Qi
2011-09-14 7:18 ` ping 3: " Yao Qi
2011-09-18 2:42 ` Joel Brobecker
2011-09-18 10:22 ` [committed]: " Yao Qi
2011-07-23 23:28 ` Mark Kettenis
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