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 10:56:31 -0500 [thread overview]
Message-ID: <71e2f293-2bd4-173e-163c-694a80390f6c@linux.microsoft.com> (raw)
In-Reply-To: <20210506154449.GB3377@sirena.org.uk>
On 5/6/21 10:44 AM, Mark Brown wrote:
> On Thu, May 06, 2021 at 10:32:30AM -0500, Madhavan T. Venkataraman wrote:
>> On 5/6/21 10:30 AM, Madhavan T. Venkataraman wrote:
>
>>> 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.
>
>> There is just one problem with this. Sometimes, there is some data in the
>> same text section. That data will not get included when we do the SYM_CODE(section)
>> change.
>
> Yes, data would need to be handled separately still. That doesn't seem
> insurmountable though?
>
I will think of something.
Madhavan
WARNING: multiple messages have this Message-ID (diff)
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 10:56:31 -0500 [thread overview]
Message-ID: <71e2f293-2bd4-173e-163c-694a80390f6c@linux.microsoft.com> (raw)
In-Reply-To: <20210506154449.GB3377@sirena.org.uk>
On 5/6/21 10:44 AM, Mark Brown wrote:
> On Thu, May 06, 2021 at 10:32:30AM -0500, Madhavan T. Venkataraman wrote:
>> On 5/6/21 10:30 AM, Madhavan T. Venkataraman wrote:
>
>>> 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.
>
>> There is just one problem with this. Sometimes, there is some data in the
>> same text section. That data will not get included when we do the SYM_CODE(section)
>> change.
>
> Yes, data would need to be handled separately still. That doesn't seem
> insurmountable though?
>
I will think of something.
Madhavan
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next prev parent reply other threads:[~2021-05-06 15:56 UTC|newest]
Thread overview: 64+ 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 ` madvenka
2021-05-03 17:36 ` [RFC PATCH v3 1/4] arm64: Introduce stack " madvenka
2021-05-03 17:36 ` madvenka
2021-05-04 15:50 ` Mark Brown
2021-05-04 15:50 ` Mark Brown
2021-05-04 19:14 ` Madhavan T. Venkataraman
2021-05-04 19:14 ` Madhavan T. Venkataraman
2021-05-04 21:52 ` Josh Poimboeuf
2021-05-04 21:52 ` Josh Poimboeuf
2021-05-04 23:13 ` Madhavan T. Venkataraman
2021-05-04 23:13 ` Madhavan T. Venkataraman
2021-05-05 0:07 ` Josh Poimboeuf
2021-05-05 0:07 ` Josh Poimboeuf
2021-05-05 0:21 ` Madhavan T. Venkataraman
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
2021-05-03 17:36 ` madvenka
2021-05-04 16:05 ` Mark Brown
2021-05-04 16:05 ` Mark Brown
2021-05-04 19:03 ` Madhavan T. Venkataraman
2021-05-04 19:03 ` Madhavan T. Venkataraman
2021-05-04 19:32 ` Madhavan T. Venkataraman
2021-05-04 19:32 ` Madhavan T. Venkataraman
2021-05-05 16:46 ` Mark Brown
2021-05-05 16:46 ` Mark Brown
2021-05-05 18:48 ` Madhavan T. Venkataraman
2021-05-05 18:48 ` Madhavan T. Venkataraman
2021-05-05 18:50 ` Madhavan T. Venkataraman
2021-05-05 18:50 ` Madhavan T. Venkataraman
2021-05-06 13:45 ` Mark Brown
2021-05-06 13:45 ` Mark Brown
2021-05-06 15:21 ` Madhavan T. Venkataraman
2021-05-06 15:21 ` Madhavan T. Venkataraman
2021-05-05 16:34 ` Mark Brown
2021-05-05 16:34 ` Mark Brown
2021-05-05 17:51 ` Madhavan T. Venkataraman
2021-05-05 17:51 ` Madhavan T. Venkataraman
2021-05-05 19:30 ` Ard Biesheuvel
2021-05-05 19:30 ` Ard Biesheuvel
2021-05-05 20:00 ` Madhavan T. Venkataraman
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
2021-05-03 17:36 ` madvenka
2021-05-06 14:12 ` Mark Brown
2021-05-06 14:12 ` Mark Brown
2021-05-06 15:30 ` Madhavan T. Venkataraman
2021-05-06 15:30 ` Madhavan T. Venkataraman
2021-05-06 15:32 ` Madhavan T. Venkataraman
2021-05-06 15:32 ` Madhavan T. Venkataraman
2021-05-06 15:44 ` Mark Brown
2021-05-06 15:44 ` Mark Brown
2021-05-06 15:56 ` Madhavan T. Venkataraman [this message]
2021-05-06 15:56 ` Madhavan T. Venkataraman
2021-05-06 15:37 ` Mark Brown
2021-05-06 15:37 ` Mark Brown
2021-05-06 15:57 ` Madhavan T. Venkataraman
2021-05-06 15:57 ` Madhavan T. Venkataraman
2021-05-03 17:36 ` [RFC PATCH v3 4/4] arm64: Handle funtion graph tracer better in the unwinder madvenka
2021-05-03 17:36 ` madvenka
2021-05-06 14:43 ` Mark Brown
2021-05-06 14:43 ` Mark Brown
2021-05-06 15:20 ` Madhavan T. Venkataraman
2021-05-06 15:20 ` Madhavan T. Venkataraman
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