Re: [FFmpeg-devel] [PATCH] configure: Update ossfuzz stuff to clang-12+

[Michael Niedermayer <michael@niedermayer.cc>]

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On Wed, Jul 16, 2025 at 11:58:14AM +0200, Kacper Michajlow wrote:
> On Tue, 15 Jul 2025 at 00:24, Michael Niedermayer
> <michael@niedermayer.cc> wrote:
> >
> > ---
> >  configure | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/configure b/configure
> > index fc082d5467e..e568eed55d3 100755
> > --- a/configure
> > +++ b/configure
> > @@ -4606,8 +4606,8 @@ set >> $logfile
> >  test -n "$valgrind" && toolchain="valgrind-memcheck"
> >
> >  enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
> > -    add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
> > -    add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
> > +    add_cflags  -fsanitize=fuzzer,address,undefined -fsanitize-memory-track-origins -fno-omit-frame-pointer
> > +    add_ldflags -fsanitize=address,undefined
> >  }
> 
> [...] Or move it to
> --toolchain=clang-fuzz for local build?

If you want to improve this, its welcome!

note though this enables fuzzer+address+undefined theres also memory which
cannot be enabled at the same time it seems (at least not when i tried)
and needs a seperate build.

so toolchain=clang-fuzz is a little to limited
we need fuzz+address+undefined and fuzz+memory at least or something liek that

thx

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The worst form of inequality is to try to make unequal things equal.
-- Aristotle

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