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Date: Tue, 8 Mar 2016 11:54:29 +0100
From: Dmitry Vyukov <>
To: Kees Cook <>
Cc: Emese Revfy <>, linux-kbuild <>, 
	PaX Team <>, Brad Spengler <>, 
	"" <>, Michal Marek <>, 
	Rasmus Villemoes <>, Fengguang Wu <>, 
	LKML <>
Subject: Re: [PATCH v5 5/5] Add sancov plugin

On Mon, Mar 7, 2016 at 10:07 PM, Kees Cook <> wrote:
> On Sun, Mar 6, 2016 at 3:07 PM, Emese Revfy <> wrote:
>> The sancov gcc plugin inserts a __sanitizer_cov_trace_pc() call
>> at the start of basic blocks.
>> This plugin is a helper plugin for the kcov feature. It supports
>> all gcc versions with plugin support (from gcc-4.5 on).
>> It is based on the gcc commit "Add fuzzing coverage support" by Dmitry Vyukov
>> (
> Very cool! Dmitry, is this something you could put to good use?

I am using gcc with sancov as a regular pass, so I don't a good use
for this right now. Maybe it will help with deployment for Android. I
don't know. Though, it will require backporting this plugin support.

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