linux-kernel - Re: [PATCH 7/9] arm64: Make profile_pc() use arch_stack

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Message-ID: <YZUgacX5UESeYNcv@sirena.org.uk>
Date:   Wed, 17 Nov 2021 15:31:53 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Mark Rutland <mark.rutland@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, aou@...s.berkeley.edu,
        borntraeger@...ibm.com, bp@...en8.de, catalin.marinas@....com,
        dave.hansen@...ux.intel.com, gor@...ux.ibm.com, hca@...ux.ibm.com,
        linux-kernel@...r.kernel.org, madvenka@...ux.microsoft.com,
        mhiramat@...nel.org, mingo@...hat.com, mpe@...erman.id.au,
        palmer@...belt.com, paul.walmsley@...ive.com, peterz@...radead.org,
        rostedt@...dmis.org, tglx@...utronix.de, will@...nel.org
Subject: Re: [PATCH 7/9] arm64: Make profile_pc() use arch_stack_walk()

On Wed, Nov 17, 2021 at 02:07:35PM +0000, Mark Rutland wrote:
> From: "Madhavan T. Venkataraman" <madvenka@...ux.microsoft.com>
> 
> To enable RELIABLE_STACKTRACE and LIVEPATCH on arm64, we need to
> substantially rework arm64's unwinding code. As part of this, we want to
> minimize the set of unwind interfaces we expose, and avoid open-coding
> of unwind logic outside of stacktrace.c.

Reviewed-by: Mark Brown <broonie@...nel.org>

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