Date: Tue, 8 Mar 2016 11:54:29 +0100 From: Dmitry Vyukov <dvyukov@...gle.com> To: Kees Cook <keescook@...omium.org> Cc: Emese Revfy <re.emese@...il.com>, linux-kbuild <linux-kbuild@...r.kernel.org>, PaX Team <pageexec@...email.hu>, Brad Spengler <spender@...ecurity.net>, "kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>, Michal Marek <mmarek@...e.com>, Rasmus Villemoes <linux@...musvillemoes.dk>, Fengguang Wu <fengguang.wu@...el.com>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v5 5/5] Add sancov plugin On Mon, Mar 7, 2016 at 10:07 PM, Kees Cook <keescook@...omium.org> wrote: > On Sun, Mar 6, 2016 at 3:07 PM, Emese Revfy <re.emese@...il.com> 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 >> (https://gcc.gnu.org/viewcvs/gcc?limit_changes=0&view=revision&revision=231296). > > 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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