On Tue, Sep 06, 2016 at 03:45:09PM +0200, Martin Liška wrote:
> --- a/libgcc/libgcov-profiler.c
> +++ b/libgcc/libgcov-profiler.c
> @@ -24,8 +24,20 @@ see the files COPYING3 and COPYING.RUNTIME respectively.
> If not, see
> <http://www.gnu.org/licenses/>. */
>
> #include "libgcov.h"
> +#include "auto-target.h"
> #if !defined(inhibit_libc)
>
> +/* Detect whether target can support atomic update of profilers. */
> +#if LONG_LONG_TYPE_SIZE <= 32 && __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
> +#define GCOV_SUPPORTS_ATOMIC 1
> +#else
> +#if LONG_LONG_TYPE_SIZE > 32 && __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
> +#define GCOV_SUPPORTS_ATOMIC 1
> +#else
> +#define GCOV_SUPPORTS_ATOMIC 0
> +#endif
> +#endif
One more thing. This is always compiled by gcc, so I think you don't want
to include auto-target.h and use __SIZEOF_LONG_LONG__ == 4 and
__SIZEOF_LONG_LONG__ == 8 tests instead of LONG_LONG_TYPE_SIZE <= 32
or LONG_LONG_TYPE_SIZE > 32. Ok with that change.
Jakub
