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Date: Fri, 10 Oct 2014 17:36:13 +0100
From: Russell King - ARM Linux <linux@....linux.org.uk>
To: Peter Hurley <peter@...leysoftware.com>
Cc: Aaro Koskinen <aaro.koskinen@....fi>,
Johannes Weiner <hannes@...xchg.org>,
linux-kernel@...r.kernel.org, Felipe Balbi <balbi@...com>,
Rabin Vincent <rabin@....in>
Subject: Re: [PATCH] arm: Blacklist gcc 4.8.[012] and 4.9.0 with
CONFIG_FRAME_POINTER
On Fri, Oct 10, 2014 at 12:26:14PM -0400, Peter Hurley wrote:
> gcc versions 4.8.[012] and 4.9.0 generates code that prematurely
> adjusts the stack pointer such that still-to-be-referenced locals
> are below the stack pointer, which allows them to be overwritten
> by interrupts.
I would much rather do this in asm-offsets.c, along side the other ARM
specific buggy compiler test(s). I'm presently putting together such
a patch.
The information in the thread on linux-omap says only GCC 4.8.1 and
GCC 4.8.2. Where do you get the other versions from?
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according to speedtest.net.
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