| --- libatomic_ops/src/atomic_ops.h |
| +++ libatomic_ops/src/atomic_ops.h |
| @@ -228,6 +228,10 @@ |
| # if defined(__cris__) || defined(CRIS) |
| # include "atomic_ops/sysdeps/gcc/cris.h" |
| # endif |
| +# if defined(__sh__) || defined(SH4) |
| +# include "atomic_ops/sysdeps/gcc/sh.h" |
| +# define AO_CAN_EMUL_CAS |
| +# endif /* __sh__ */ |
| #endif /* __GNUC__ && !AO_USE_PTHREAD_DEFS */ |
| |
| #if defined(__INTEL_COMPILER) && !defined(AO_USE_PTHREAD_DEFS) |
| only in patch2: |
| unchanged: |
| --- libatomic_ops/src/atomic_ops/sysdeps/Makefile.am |
| +++ libatomic_ops/src/atomic_ops/sysdeps/Makefile.am |
| @@ -29,6 +29,7 @@ |
| gcc/powerpc.h gcc/sparc.h \ |
| gcc/hppa.h gcc/m68k.h gcc/s390.h \ |
| gcc/ia64.h gcc/x86_64.h gcc/cris.h \ |
| + gcc/sh.h \ |
| \ |
| icc/ia64.h \ |
| \ |
| --- libatomic_ops/src/atomic_ops/sysdeps/gcc/sh.h |
| +++ libatomic_ops/src/atomic_ops/sysdeps/gcc/sh.h |
| @@ -0,0 +1,31 @@ |
| +/* |
| + * Copyright (c) 2009 by Takashi YOSHII. All rights reserved. |
| + * |
| + * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED |
| + * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. |
| + * |
| + * Permission is hereby granted to use or copy this program |
| + * for any purpose, provided the above notices are retained on all copies. |
| + * Permission to modify the code and to distribute modified code is granted, |
| + * provided the above notices are retained, and a notice that the code was |
| + * modified is included with the above copyright notice. |
| + */ |
| + |
| +#include "../all_atomic_load_store.h" |
| +#include "../ordered.h" |
| + |
| +/* sh has tas.b(byte) only */ |
| +#include "../test_and_set_t_is_char.h" |
| + |
| +AO_INLINE AO_TS_VAL_t |
| +AO_test_and_set_full(volatile AO_TS_t *addr) |
| +{ |
| + int oldval; |
| + __asm__ __volatile__( |
| + "tas.b @%1; movt %0" |
| + : "=r" (oldval) |
| + : "r" (addr) |
| + : "t", "memory"); |
| + return oldval? AO_TS_CLEAR : AO_TS_SET; |
| +} |
| +#define AO_HAVE_test_and_set_full |
