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From: "Madhavan T. Venkataraman" <madvenka@linux.microsoft.com>
To: Mark Brown <broonie@kernel.org>
Cc: jpoimboe@redhat.com, mark.rutland@arm.com, jthierry@redhat.com,
	catalin.marinas@arm.com, will@kernel.org, jmorris@namei.org,
	pasha.tatashin@soleen.com, linux-arm-kernel@lists.infradead.org,
	live-patching@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v3 3/4] arm64: Handle miscellaneous functions in .text and .init.text
Date: Thu, 6 May 2021 10:57:09 -0500	[thread overview]
Message-ID: <0ef047c5-d3fe-619e-749d-b10ef3571bcd@linux.microsoft.com> (raw)
In-Reply-To: <20210506153756.GA3377@sirena.org.uk>



On 5/6/21 10:37 AM, Mark Brown wrote:
> On Thu, May 06, 2021 at 10:30:21AM -0500, Madhavan T. Venkataraman wrote:
>> On 5/6/21 9:12 AM, Mark Brown wrote:
>>> On Mon, May 03, 2021 at 12:36:14PM -0500, madvenka@linux.microsoft.com wrote:
> 
>>> I was thinking it'd be good to do this by modifying SYM_CODE_START() to
>>> emit the section, that way nobody can forget to put any SYM_CODE into a
>>> special section.  That does mean we'd have to first introduce a new
> 
>> OK. I could make the section an argument to SYM_CODE*() so that a developer
>> will never miss that. Some documentation may be in order so the guidelines
>> are clear. I will do the doc patch separately, if that is alright with
>> you all.
> 
> I was thinking to have standard SYM_CODE default to a section then a
> variant for anything that cares (like how we have SYM_FUNC_PI and
> friends for the PI code for EFI).
> 

OK.

>>> We also have a bunch of things like __cpu_soft_restart which don't seem
>>> to be called out here but need to be in .idmap.text.
> 
>> It is already in .idmap.text.
> 
> Right, I meant that I was expecting to see things that need to be in a
> specific section other than .code.text called out separately here if
> we're enumerating them.  Though if the annotations are done separately
> then this patch wouldn't need to do that calling out at all, it'd be
> covered as part of fiddling around with the annotations.
> 

OK.

Madhavan

  reply	other threads:[~2021-05-06 15:57 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <65cf4dfbc439b010b50a0c46ec500432acde86d6>
2021-05-03 17:36 ` [RFC PATCH v3 0/4] arm64: Stack trace reliability checks in the unwinder madvenka
2021-05-03 17:36   ` [RFC PATCH v3 1/4] arm64: Introduce stack " madvenka
2021-05-04 15:50     ` Mark Brown
2021-05-04 19:14       ` Madhavan T. Venkataraman
2021-05-04 21:52     ` Josh Poimboeuf
2021-05-04 23:13       ` Madhavan T. Venkataraman
2021-05-05  0:07         ` Josh Poimboeuf
2021-05-05  0:21           ` Madhavan T. Venkataraman
2021-05-03 17:36   ` [RFC PATCH v3 2/4] arm64: Check the return PC against unreliable code sections madvenka
2021-05-04 16:05     ` Mark Brown
2021-05-04 19:03       ` Madhavan T. Venkataraman
2021-05-04 19:32         ` Madhavan T. Venkataraman
2021-05-05 16:46           ` Mark Brown
2021-05-05 18:48             ` Madhavan T. Venkataraman
2021-05-05 18:50               ` Madhavan T. Venkataraman
2021-05-06 13:45               ` Mark Brown
2021-05-06 15:21                 ` Madhavan T. Venkataraman
2021-05-05 16:34         ` Mark Brown
2021-05-05 17:51           ` Madhavan T. Venkataraman
2021-05-05 19:30     ` Ard Biesheuvel
2021-05-05 20:00       ` Madhavan T. Venkataraman
2021-05-03 17:36   ` [RFC PATCH v3 3/4] arm64: Handle miscellaneous functions in .text and .init.text madvenka
2021-05-06 14:12     ` Mark Brown
2021-05-06 15:30       ` Madhavan T. Venkataraman
2021-05-06 15:32         ` Madhavan T. Venkataraman
2021-05-06 15:44           ` Mark Brown
2021-05-06 15:56             ` Madhavan T. Venkataraman
2021-05-06 15:37         ` Mark Brown
2021-05-06 15:57           ` Madhavan T. Venkataraman [this message]
2021-05-03 17:36   ` [RFC PATCH v3 4/4] arm64: Handle funtion graph tracer better in the unwinder madvenka
2021-05-06 14:43     ` Mark Brown
2021-05-06 15:20       ` Madhavan T. Venkataraman

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