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-rw-r--r--libjava/sysdep/sh/locks.h36
1 files changed, 1 insertions, 35 deletions
diff --git a/libjava/sysdep/sh/locks.h b/libjava/sysdep/sh/locks.h
index 9a152fb..727c3aa 100644
--- a/libjava/sysdep/sh/locks.h
+++ b/libjava/sysdep/sh/locks.h
@@ -14,45 +14,11 @@ details. */
typedef size_t obj_addr_t; /* Integer type big enough for object */
/* address. */
-static unsigned char __cas_lock = 0;
-
-inline static void
-__cas_start_atomic (void)
-{
- unsigned int val;
-
- do
- __asm__ __volatile__ ("tas.b @%1; movt %0"
- : "=r" (val)
- : "r" (&__cas_lock)
- : "memory");
- while (val == 0);
-}
-
-inline static void
-__cas_end_atomic (void)
-{
- __asm__ __volatile__ (" " : : : "memory");
- __cas_lock = 0;
-}
-
inline static bool
compare_and_swap (volatile obj_addr_t *addr, obj_addr_t old,
obj_addr_t new_val)
{
- bool ret;
-
- __cas_start_atomic ();
- if (*addr != old)
- ret = false;
- else
- {
- *addr = new_val;
- ret = true;
- }
- __cas_end_atomic ();
-
- return ret;
+ return __sync_bool_compare_and_swap (addr, old, new_val);
}
inline static void