Re: [PATCH] configure: fix --enable-fuzzing linker failures

[Peter Maydell]

On Sun, 21 Feb 2021 at 16:03, Alexander Bulekov <alxndr@bu.edu> wrote:
>
> With --enable-fuzzing, QEMU_CFLAGS include -fsanitize=fuzzer-no-link.
> This should allow us to build non-fuzzer binaries using objects
> instrumented for fuzzing. However, to do that, we also need to link with
> -fsanitize=fuzzer-no-link. We were not doing that.
>
> Reported-by: Li Qiang <liq3ea@163.com>
> Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
> ---
>  configure | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/configure b/configure
> index a79b3746d4..02aaea31c8 100755
> --- a/configure
> +++ b/configure
> @@ -6097,6 +6097,7 @@ if test "$fuzzing" = "yes" ; then
>    # needed CFLAGS have already been provided
>    if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
>      QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
> +    QEMU_LDFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"

Did you mean  ="$QEMU_LDFLAGS ... ?

>      FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"

-- PMM