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