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Message-ID: <CAD=FV=U4WxMLyEAgGExc=Q7r9jy=AS3mtxSoi=M+Qgw_e=U-bg@mail.gmail.com> Date: Wed, 23 Apr 2014 15:51:45 -0700 From: Doug Anderson <dianders@...gle.com> To: Kees Cook <keescook@...omium.org> Cc: Rabin Vincent <rabin@....in>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, LKML <linux-kernel@...r.kernel.org>, Laura Abbott <lauraa@...eaurora.org>, Jon Medhurst <tixy@...aro.org> Subject: Re: [PATCH 2/2] arm: use fixmap for text patching when text is RO Kees, On Wed, Apr 23, 2014 at 2:09 PM, Kees Cook <keescook@...omium.org> wrote: > I think we can use this for the kgdb case too. Has anyone tried that > yet? Perhaps implementing text_poke() in terms of patch_map/unmap > calls would be best? Then the arm-specific kgdb hooks can use that, > since it does the icache flushing separately. Yes. I just tried using these patches and it worked for me. :) I didn't actually implement text_poke(), though. Atop our 3.8 tree, in case anyone is curious * https://chromium-review.googlesource.com/196670 * https://chromium-review.googlesource.com/196671 * https://chromium-review.googlesource.com/196672 * https://chromium-review.googlesource.com/196673 * https://chromium-review.googlesource.com/196674 Please include me on the CC list for spins of your patches... -Doug -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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