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Re: [Qemu-devel] [RFC PATCH v2 02/17] fuzz: Add fuzzer configure options
From: |
Oleinik, Alexander |
Subject: |
Re: [Qemu-devel] [RFC PATCH v2 02/17] fuzz: Add fuzzer configure options |
Date: |
Tue, 13 Aug 2019 18:46:01 +0000 |
On Mon, 2019-08-12 at 18:39 -0400, Bandan Das wrote:
> "Oleinik, Alexander" <address@hidden> writes:
> ...
> > if test "$supported_cpu" = "no"; then
> > echo
> > @@ -7306,6 +7310,17 @@ fi
> > if test "$sheepdog" = "yes" ; then
> > echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
> > fi
> > +if test "$fuzzing" = "yes" ; then
> > + QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer,address -fprofile-
> > instr-generate"
> > + QEMU_CFLAGS="$QEMU_CFLAGS -fprofile-instr-generate -fcoverage-
> > mapping"
>
> What is the purpose of -fprofile-instr-generate ? Coverage info ?
> (Listed twice above)
Yes, it's for coverage info. I'll fix it so it is only listed once.
> Bandan
>
> > + QEMU_LDFLAGS="$LDFLAGS -fsanitize=fuzzer,address"
> > +
> > + # Add tests/ to include path, since this is done in
> > tests/Makefile.include,
> > + # and required for QOS objects to build. This can be removed
> > if/when the
> > + # fuzzer is compiled using rules in tests/Makefile.include
> > + QEMU_INCLUDES="-iquote \$(SRC_PATH)/tests $QEMU_INCLUDES"
> > + echo "CONFIG_FUZZ=y" >> $config_host_mak
> > +fi
> >
> > if test "$tcg_interpreter" = "yes"; then
> > QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/tci $QEMU_INCLUDES"
- [Qemu-devel] [RFC PATCH v2 00/17] Add virtual device fuzzing support, Oleinik, Alexander, 2019/08/05
- [Qemu-devel] [RFC PATCH v2 01/17] fuzz: Move initialization from main to qemu_init, Oleinik, Alexander, 2019/08/05
- [Qemu-devel] [RFC PATCH v2 02/17] fuzz: Add fuzzer configure options, Oleinik, Alexander, 2019/08/05
- [Qemu-devel] [RFC PATCH v2 03/17] fuzz: Keep memory mapped for fork-based fuzzer, Oleinik, Alexander, 2019/08/05
- [Qemu-devel] [RFC PATCH v2 04/17] fuzz: Skip modules that were already initialized, Oleinik, Alexander, 2019/08/05
- [Qemu-devel] [RFC PATCH v2 05/17] fuzz: Add direct receive function for qtest server, Oleinik, Alexander, 2019/08/05
- [Qemu-devel] [RFC PATCH v2 06/17] fuzz: Add FUZZ_TARGET module type, Oleinik, Alexander, 2019/08/05