Before gcc 4.2, __builtin___clear_cache doesn't exist, and afterward the gcc s390 backend implements it as nothing.
Signed-off-by: Richard Henderson <r...@twiddle.net> --- tcg/s390/tcg-target.h | 5 ----- 1 files changed, 0 insertions(+), 5 deletions(-) diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h index d8a2955..d7fe0c7 100644 --- a/tcg/s390/tcg-target.h +++ b/tcg/s390/tcg-target.h @@ -94,9 +94,4 @@ enum { static inline void flush_icache_range(unsigned long start, unsigned long stop) { -#if QEMU_GNUC_PREREQ(4, 1) - __builtin___clear_cache((char *) start, (char *) stop); -#else -#error not implemented -#endif } -- 1.7.0.1