linux-kernel - Re: [PATCH resend] MIPS: Allow FPU emulator to use non-stack area.

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Message-ID: <54343EB4.30708@imgtec.com>
Date:	Tue, 7 Oct 2014 12:27:48 -0700
From:	Leonid Yegoshin <Leonid.Yegoshin@...tec.com>
To:	Rich Felker <dalias@...c.org>
CC:	Andy Lutomirski <luto@...capital.net>,
	Matthew Fortune <Matthew.Fortune@...tec.com>,
	David Daney <david.s.daney@...il.com>,
	"David Daney" <ddaney@...iumnetworks.com>,
	David Daney <ddaney.cavm@...il.com>,
	"libc-alpha@...rceware.org" <libc-alpha@...rceware.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mips@...ux-mips.org" <linux-mips@...ux-mips.org>,
	David Daney <david.daney@...ium.com>
Subject: Re: [PATCH resend] MIPS: Allow FPU emulator to use non-stack area.

On 10/07/2014 12:21 PM, Rich Felker wrote:
> The in-stack trampoline support could be left but used only for 
> emulating instructions the kernel doesn't know. This would make all 
> normal binaries immediately usable with non-executable stack, and 
> would avoid the only potential source of regressions. Ultimately I 
> think the "xol" stuff should be removed, but that could be a long term 
> goal. 
Thank you, it is exactly what I am doing in patch series named "[PATCH 
0/3] MIPS executable stack protection".
I just setup a special stack for that.
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