From: sashiko-bot@kernel.org
To: "Johannes Berg" <johannes@sipsolutions.net>
Cc: "Alexander Gordeev" <agordeev@linux.ibm.com>,
"Vasily Gorbik" <gor@linux.ibm.com>,
"Christian Borntraeger" <borntraeger@linux.ibm.com>,
"Heiko Carstens" <hca@linux.ibm.com>,
linux-s390@vger.kernel.org
Subject: Re: [PATCH 4/4] um: ORC unwinder support
Date: Thu, 24 Sep 2026 12:52:06 +0000 [thread overview]
Message-ID: <20260924125206.80D9A1F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260924144039.52fff8ac4e16.Ie3f2b9610f0bc9cf45ca82c17f3b9e0f90354ea4@changeid>
> From: Johannes Berg <johannes.berg@intel.com>
>
> Add support for the ORC unwinder on 64-bit UML. Since that's just
> normal x86_64 code, the objtool etc. is the same and the unwinder
> itself is mostly copied from x86, except
> - register accesses, obviously;
> - no need for (entry) assembly support
> - interrupts are host signals, so we can unwind across them
> by detecting the signal restorer and using the ucontext
>
> Note that due to the indirect calls with -mcmodel=large objtool
> gets confused in some places resulting in some warnings, but I
> couldn't find a way to suppress that and it seemed harmless.
>
> Assisted-by: LLM
> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260924124039.1621965-6-johannes@sipsolutions.net?part=4
prev parent reply other threads:[~2026-09-24 12:52 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-24 12:35 [PATCH 0/4] ORC unwinder cleanup & UML support Johannes Berg
2026-09-24 12:35 ` [PATCH 1/4] s390: remove unwind_module_init() Johannes Berg
2026-09-24 12:43 ` sashiko-bot
2026-09-24 12:48 ` Heiko Carstens
2026-09-24 12:35 ` [PATCH 2/4] ORC: pull out module handling from x86/loongarch Johannes Berg
2026-09-24 12:49 ` sashiko-bot
2026-09-24 12:35 ` [PATCH 3/4] ORC: unify orc_hash.h generation Johannes Berg
2026-09-24 12:48 ` sashiko-bot
2026-09-24 12:35 ` [PATCH 4/4] um: ORC unwinder support Johannes Berg
2026-09-24 12:52 ` sashiko-bot [this message]
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