Re: [PATCH] fuzz: disable tcg for OSS-Fuzz builds

[Philippe Mathieu-Daudé]

On 13/11/24 16:37, Alexander Bulekov wrote:
> OSS-Fuzz builds have been failing due to some strange issues that seem
> to be related to color codes from libffi:
> https://oss-fuzz-build-logs.storage.googleapis.com/log-8d5435ee-1677-40af-9656-b4162fa881e1.txt
>
> Disable tcg to disable libffi.
>
> Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
> ---
>   scripts/oss-fuzz/build.sh | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/scripts/oss-fuzz/build.sh b/scripts/oss-fuzz/build.sh
> index 7398298173..095f7a90e3 100755
> --- a/scripts/oss-fuzz/build.sh
> +++ b/scripts/oss-fuzz/build.sh
> @@ -65,7 +65,7 @@ mkdir -p "$DEST_DIR/lib/"  # Copy the shared libraries here
>   # Build once to get the list of dynamic lib paths, and copy them over
>   ../configure --disable-werror --cc="$CC" --cxx="$CXX" --enable-fuzzing \
>       --prefix="/opt/qemu-oss-fuzz" \
> -    --extra-cflags="$EXTRA_CFLAGS" --target-list="i386-softmmu"
> +    --extra-cflags="$EXTRA_CFLAGS" --target-list="i386-softmmu" --disable-tcg

IIUC we are using the QTest 'software [un]accelerator' to fuzz via I/O,
right?
Then maybe we can disable all accelerators to speed up build. But please
mention it in the commit description.

Regards,

Phil.