From: Laszlo Ersek <lersek@redhat.com>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>, edk2-devel@lists.01.org
Subject: Re: [PATCH 0/2] Clear frame pointer in startup code on AARCH64 systems
Date: Mon, 19 Nov 2018 19:53:34 +0100 [thread overview]
Message-ID: <0814ad34-c45e-4990-1529-fb6a293440c5@redhat.com> (raw)
In-Reply-To: <20181116225558.27720-1-ard.biesheuvel@linaro.org>
On 11/16/18 23:55, Ard Biesheuvel wrote:
> The backtrace code on AARCH64 does not sanitize the frame pointer values
> it pulls of the stack when attempting to do a backtrace, and so junk left
> in the frame pointer register may result in a recursive exception and a
> truncated backtrace.
>
> Ard Biesheuvel (2):
> ArmPlatformPkg: clear frame pointer in startup code
> ArmVirtPkg/PrePi: clear frame pointer in startup code
>
> ArmPlatformPkg/PrePeiCore/AArch64/PrePeiCoreEntryPoint.S | 3 +++
> ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S | 3 +++
> ArmVirtPkg/PrePi/AArch64/ModuleEntryPoint.S | 3 +++
> 3 files changed, 9 insertions(+)
>
Acked-by: Laszlo Ersek <lersek@redhat.com>
next prev parent reply other threads:[~2018-11-19 18:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-16 22:55 [PATCH 0/2] Clear frame pointer in startup code on AARCH64 systems Ard Biesheuvel
2018-11-16 22:55 ` [PATCH 1/2] ArmPlatformPkg: clear frame pointer in startup code Ard Biesheuvel
2018-11-16 22:55 ` [PATCH 2/2] ArmVirtPkg/PrePi: " Ard Biesheuvel
2018-11-19 18:53 ` Laszlo Ersek [this message]
2018-11-19 18:56 ` [PATCH 0/2] Clear frame pointer in startup code on AARCH64 systems Leif Lindholm
2018-11-19 19:28 ` Ard Biesheuvel
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