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From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2 3/7] arm64: move non-entry code out of .entry.text
Date: Wed, 26 Jul 2017 14:38:17 -0700	[thread overview]
Message-ID: <c35db9f2-6a4c-c85b-f01a-a4123d755a6e@codeaurora.org> (raw)
In-Reply-To: <1501093110-3844-4-git-send-email-mark.rutland@arm.com>

On 07/26/2017 11:18 AM, Mark Rutland wrote:
> Currently, cpu_switch_to and ret_from_fork both live in .entry.text,
> though neither form the critical path for an exception entry.
>
> In subsequent patches, we will require that code in .entry.text is part
> of the critical path for exception entry, for which we can assume
> certain properties (e.g. the presence of exception regs on the stack).
>
> Neither cpu_switch_to nor ret_from_fork will meet these requirements, so
> we must most them out of .entry.text. To ensure that neither are kprobed

s/most/move/ ?

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

  reply	other threads:[~2017-07-26 21:38 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-26 18:18 [PATCHv2 0/7] arm64: unwind: fix broken exception stack dump Mark Rutland
2017-07-26 18:18 ` [PATCHv2 1/7] arm64: Add ASM_BUG() Mark Rutland
2017-08-08 15:31   ` Mark Rutland
2017-08-08 15:58     ` Catalin Marinas
2017-08-08 16:10       ` Mark Rutland
2017-08-09 10:07         ` Catalin Marinas
2017-08-09 13:21           ` Mark Rutland
2017-08-09 14:32             ` Catalin Marinas
2017-07-26 18:18 ` [PATCHv2 2/7] arm64: consistently use bl for C exception entry Mark Rutland
2017-07-26 18:18 ` [PATCHv2 3/7] arm64: move non-entry code out of .entry.text Mark Rutland
2017-07-26 21:38   ` Stephen Boyd [this message]
2017-07-31 10:21     ` Mark Rutland
2017-07-26 18:18 ` [PATCHv2 4/7] arm64: unwind: avoid percpu indirection for irq stack Mark Rutland
2017-07-26 18:18 ` [PATCHv2 5/7] arm64: unwind: disregard frame.sp when validating frame pointer Mark Rutland
2017-07-26 18:18 ` [PATCHv2 6/7] arm64: unwind: reference pt_regs via embedded stack frame Mark Rutland
2017-07-26 18:18 ` [PATCHv2 7/7] arm64: unwind: remove sp from struct stackframe Mark Rutland

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