linux-kernel - Re: [RFC 8/8] ARM64: Add uprobe support

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Message-ID: <20150112143800.GC25914@redhat.com>
Date:	Mon, 12 Jan 2015 15:38:00 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Pratyush Anand <panand@...hat.com>
Cc:	tixy@...aro.org, linux@....linux.org.uk, ananth@...ibm.com,
	sandeepa.prabhu@...aro.org, catalin.marinas@....com,
	will.deacon@....com, linux-kernel@...r.kernel.org,
	anil.s.keshavamurthy@...el.com, masami.hiramatsu.pt@...achi.com,
	wcohen@...hat.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC 8/8] ARM64: Add uprobe support

On 01/12, Pratyush Anand wrote:
>
> Hi Oleg,
>
> How can I generate a scenario to test:
>
> a) arch_uprobe_xol_was_trapped
> b) arch_uprobe_abort_xol

For example, you can probe something like

	*(int *)NULL = 0;

See also the x86 test-case in https://lkml.org/lkml/2011/10/21/148
and the whole thread.

Oleg.

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