Re: [PATCH] Modify tests to work with clang

[Thomas Huth <thuth@redhat.com>]

On 18/11/2019 00.14, Taylor Simpson wrote:
> Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
> ---
>  tests/tcg/multiarch/float_helpers.c | 2 --
>  tests/tcg/multiarch/linux-test.c    | 6 +++++-
>  2 files changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/tests/tcg/multiarch/float_helpers.c b/tests/tcg/multiarch/float_helpers.c
> index 8ee7903..bc530e5 100644
> --- a/tests/tcg/multiarch/float_helpers.c
> +++ b/tests/tcg/multiarch/float_helpers.c
> @@ -79,11 +79,9 @@ char *fmt_16(uint16_t num)
>  
>  #ifndef SNANF
>  /* Signaling NaN macros, if supported.  */
> -# if __GNUC_PREREQ(3, 3)
>  #  define SNANF (__builtin_nansf (""))
>  #  define SNAN (__builtin_nans (""))
>  #  define SNANL (__builtin_nansl (""))
> -# endif
>  #endif
>  
>  static float f32_numbers[] = {
> diff --git a/tests/tcg/multiarch/linux-test.c b/tests/tcg/multiarch/linux-test.c
> index 673d7c8..8a7c15c 100644
> --- a/tests/tcg/multiarch/linux-test.c
> +++ b/tests/tcg/multiarch/linux-test.c
> @@ -485,7 +485,11 @@ static void test_signal(void)
>      act.sa_flags = SA_SIGINFO;
>      chk_error(sigaction(SIGSEGV, &act, NULL));
>      if (setjmp(jmp_env) == 0) {
> -        *(uint8_t *)0 = 0;
> +        /*
> +         * clang requires volatile or it will turn this into a
> +         * call to abort() instead of forcing a SIGSEGV.
> +         */
> +        *(volatile uint8_t *)0 = 0;
>      }
>  
>      act.sa_handler = SIG_DFL;
> 

Reviewed-by: Thomas Huth <thuth@redhat.com>