On Wed, Aug 30, 2017 at 09:08:43PM +0200, Dmitry Vyukov wrote: > On Wed, Aug 30, 2017 at 8:23 PM, Mark Rutland <mark.rutland@xxxxxxx> wrote: > > On Wed, Aug 30, 2017 at 06:23:29PM +0200, Dmitry Vyukov wrote: > >> From: Victor Chibotaru <tchibo@xxxxxxxxxx> > >> > >> Enables kcov to collect comparison operands from instrumented code. > >> This is done by using Clang's -fsanitize=trace-cmp instrumentation > >> (currently not available for GCC). > >> Clang instrumentation: > >> https://clang.llvm.org/docs/SanitizerCoverage.html#tracing-data-flow > > > > How stable is this? > > > > The comment at the end says "This interface is a subject to change." > > The intention is that this is not subject to change anymore (since we > are using it in kernel). > I've mailed change to docs: https://reviews.llvm.org/D37303 Ok; thanks for confirming. > FWIW, there is patch in flight that adds this instrumentation to gcc: > https://groups.google.com/forum/#!topic/syzkaller/CSLynn6nI-A > It seems to be stalled on review phase, though. Let's hope it gets unblocked soon. :) Thanks, Mark. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
