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Message-ID: <473EA885.80605@gmail.com>
Date:	Sat, 17 Nov 2007 09:38:29 +0100
From:	Franck Bui-Huu <vagabon.xyz@gmail.com>
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To:	David Daney <ddaney@avtrex.com>
CC:	Ralf Baechle <ralf@linux-mips.org>, linux-mips@linux-mips.org
Subject: Re: Cannot unwind through MIPS signal frames with	ICACHE_REFILLS_WORKAROUND_WAR
References: <473957B6.3030202@avtrex.com> <18233.36645.232058.964652@zebedee.pink> <20071113121036.GA6582@linux-mips.org> <473C0761.1040205@gmail.com> <20071115115351.GA4973@linux-mips.org> <473C8006.2070902@avtrex.com>
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David Daney wrote:
> I am liking the idea of putting the trampoline code in the (as of yet
> non-existent vdso).  This eliminates the need to flush the icache, but
> maintains the ability of user code to unwind through signal frames.
> 
> Putting a .eh_frame section in the vdso would be even better as that
> would eliminate the need for libgcc to do code reading and let the
> kernel use any means desired to return from signal handlers.
> 

You're very welcome to improve the ld script for VDSO generation, I
sent a couple days ago. I would be happy to integrate your
improvements in my patch for the future version.

thanks,
		Franck