diff options
| -rw-r--r-- | libgc/mark_rts.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/libgc/mark_rts.c b/libgc/mark_rts.c index b3e996a29c2..561333ab04d 100644 --- a/libgc/mark_rts.c +++ b/libgc/mark_rts.c @@ -368,6 +368,9 @@ ptr_t p; ptr_t GC_approx_sp() { +#if defined(__GNUC__) + return __builtin_frame_address(0); +#else VOLATILE word dummy; dummy = 42; /* Force stack to grow if necessary. Otherwise the */ @@ -376,17 +379,11 @@ ptr_t GC_approx_sp() # ifdef _MSC_VER # pragma warning(disable:4172) # endif -# if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 408) -# pragma GCC diagnostic push -# pragma GCC diagnostic ignored "-Wreturn-local-addr" -# endif return((ptr_t)(&dummy)); -# if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 408) -# pragma GCC diagnostic pop -# endif # ifdef _MSC_VER # pragma warning(default:4172) # endif +#endif // __GNUC__ } /* |