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locks.h (read_barrier): New.

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* sysdep/sh/locks.h (read_barrier): New.
	(write_barrier): Likewise.

From-SVN: r120735
This commit is contained in:
Kaz Kojima
2007-01-12 22:27:49 +00:00
parent db9d500a22
commit 228e6ac245
2 changed files with 18 additions and 1 deletions
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14
libjava/sysdep/sh/locks.h
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@@ -1,6 +1,6 @@
// locks.h - Thread synchronization primitives. SuperH implementation.
/* Copyright (C) 2002 Free Software Foundation
/* Copyright (C) 2002, 2007 Free Software Foundation
This file is part of libgcj.
@@ -69,4 +69,16 @@ compare_and_swap_release (volatile obj_addr_t *addr, obj_addr_t old,
return compare_and_swap (addr, old, new_val);
}
inline static void
read_barrier()
{
__asm__ __volatile__(" " : : : "memory");
}
inline static void
write_barrier()
{
__asm__ __volatile__(" " : : : "memory");
}
#endif /* ! __SYSDEP_LOCKS_H__ */