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From: Will Deacon <will@kernel.org>
To: linux-arm-kernel@lists.infradead.org
Cc: Will Deacon <will@kernel.org>,
	Tamas Zsoldos <tamas.zsoldos@arm.com>,
	Mark Brown <broonie@kernel.org>,
	kernel-team@android.com, Dave Martin <dave.martin@arm.com>,
	Daniel Kiss <daniel.kiss@arm.com>
Subject: [PATCH v2 0/2] arm64 sigreturn unwinding fixes
Date: Tue, 19 May 2020 17:28:19 +0100	[thread overview]
Message-ID: <20200519162821.16857-1-will@kernel.org> (raw)

Hi again,

Hot off the press, here's v2 of the sigreturn unwinding fixes I sent out
early on today:

  https://lore.kernel.org/r/20200519121818.14511-1-will@kernel.org

Changes since v1 include:

  * Retain all CFI directives, as they are needed for unwinding after all
  * Add tonnes of comments
  * Squash the last two patches
  * Use SYM_CODE_{START,END} instead of open-coding it
  * Update Fixes: tag

Please have a look, and give it a spin with your favourite unwinder.

Ta,

Will

Cc: Dave Martin <dave.martin@arm.com>
Cc: Tamas Zsoldos <tamas.zsoldos@arm.com> 
Cc: Daniel Kiss <daniel.kiss@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: <kernel-team@android.com>

--->8

Will Deacon (2):
  arm64: vdso: Don't prefix sigreturn trampoline with a BTI C
    instruction
  arm64: vdso: Fix CFI directives in sigreturn trampoline

 arch/arm64/kernel/vdso/sigreturn.S   | 47 +++++++++++++++++++++++-----
 arch/arm64/kernel/vdso32/sigreturn.S | 16 +++++-----
 2 files changed, 48 insertions(+), 15 deletions(-)

-- 
2.26.2.761.g0e0b3e54be-goog


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             reply	other threads:[~2020-05-19 16:29 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-19 16:28 Will Deacon [this message]
2020-05-19 16:28 ` [PATCH v2 1/2] arm64: vdso: Don't prefix sigreturn trampoline with a BTI C instruction Will Deacon
2020-05-19 16:33   ` Mark Brown
2020-05-20  9:33   ` Dave Martin
2020-05-20  9:53     ` Will Deacon
2020-05-19 16:28 ` [PATCH v2 2/2] arm64: vdso: Fix CFI directives in sigreturn trampoline Will Deacon
2020-05-20  9:42   ` Dave Martin
2020-05-20  9:50     ` Will Deacon
2020-05-20 10:27       ` Dave Martin
2020-05-20 10:36         ` Will Deacon
2020-05-20 11:03           ` Dave Martin
2020-05-20 10:48   ` Will Deacon
2020-05-20 11:06     ` Dave Martin

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