From: Will Deacon <will@kernel.org>
To: Nick Desaulniers <ndesaulniers@google.com>,
Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Nathan Chancellor <natechancellor@gmail.com>,
Naohiro Aota <naohiro.aota@wdc.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Dave Martin <Dave.Martin@arm.com>,
Stephen Boyd <swboyd@google.com>,
clang-built-linux@googlegroups.com,
Manoj Gupta <manojgupta@google.com>,
Luis Lozano <llozano@google.com>
Subject: Re: [PATCH v2] arm64: vdso32: add CONFIG_THUMB2_COMPAT_VDSO
Date: Wed, 10 Jun 2020 12:21:09 +0100 [thread overview]
Message-ID: <159178553820.37708.12308914886514191769.b4-ty@kernel.org> (raw)
In-Reply-To: <20200608205711.109418-1-ndesaulniers@google.com>
On Mon, 8 Jun 2020 13:57:08 -0700, Nick Desaulniers wrote:
> Allow the compat vdso (32b) to be compiled as either THUMB2 (default) or
> ARM.
>
> For THUMB2, the register r7 is reserved for the frame pointer, but
> code in arch/arm64/include/asm/vdso/compat_gettimeofday.h
> uses r7. Explicitly set -fomit-frame-pointer, since unwinding through
> interworked THUMB2 and ARM is unreliable anyways. See also how
> CONFIG_UNWINDER_FRAME_POINTER cannot be selected for
> CONFIG_THUMB2_KERNEL for ARCH=arm.
>
> [...]
Applied to arm64 (for-next/core), thanks!
[1/1] arm64: vdso32: add CONFIG_THUMB2_COMPAT_VDSO
https://git.kernel.org/arm64/c/625412c210fb
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
next prev parent reply other threads:[~2020-06-10 11:21 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-26 17:31 [PATCH] arm64: vdso32: force vdso32 to be compiled as -marm Nick Desaulniers
2020-05-26 18:55 ` Stephen Boyd
2020-05-26 20:45 ` Will Deacon
2020-05-27 13:53 ` Dave Martin
2020-05-27 17:58 ` Nick Desaulniers
2020-05-27 13:45 ` Robin Murphy
2020-05-27 17:55 ` Nick Desaulniers
2020-05-27 18:08 ` Will Deacon
2020-05-27 18:17 ` Nick Desaulniers
2020-05-28 7:20 ` Will Deacon
2020-06-08 20:57 ` [PATCH v2] arm64: vdso32: add CONFIG_THUMB2_COMPAT_VDSO Nick Desaulniers
2020-06-09 20:35 ` Catalin Marinas
2020-06-09 23:55 ` Nick Desaulniers
2020-06-10 8:47 ` Will Deacon
2020-06-10 10:29 ` Catalin Marinas
2020-06-10 10:32 ` Will Deacon
2020-06-10 11:21 ` Will Deacon [this message]
2020-05-27 19:28 ` [PATCH] arm64: vdso32: force vdso32 to be compiled as -marm Robin Murphy
2020-05-27 20:02 ` Robin Murphy
2020-05-27 20:14 ` Nick Desaulniers
2020-05-27 20:31 ` Nick Desaulniers
2020-05-27 21:47 ` Nick Desaulniers
2020-05-28 8:05 ` Peter Smith
2020-05-28 9:41 ` Catalin Marinas
2020-05-28 19:06 ` Nick Desaulniers
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