diff options
Diffstat (limited to 'libjava/sysdep/sparc/locks.h')
| -rw-r--r-- | libjava/sysdep/sparc/locks.h | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/libjava/sysdep/sparc/locks.h b/libjava/sysdep/sparc/locks.h index 7339567..7c30d7c 100644 --- a/libjava/sysdep/sparc/locks.h +++ b/libjava/sysdep/sparc/locks.h @@ -1,6 +1,6 @@ // locks.h - Thread synchronization primitives. Sparc implementation. -/* Copyright (C) 2002 Free Software Foundation +/* Copyright (C) 2002, 2007 Free Software Foundation This file is part of libgcj. @@ -38,12 +38,23 @@ release_set(volatile obj_addr_t *addr, obj_addr_t new_val) } inline static bool -compare_and_swap_release(volatile obj_addr_t *addr, - obj_addr_t old, - obj_addr_t new_val) +compare_and_swap_release(volatile obj_addr_t *addr, obj_addr_t old, + obj_addr_t new_val) { return compare_and_swap(addr, old, new_val); } + +inline static void +read_barrier() +{ + __asm__ __volatile__("membar #LoadLoad | #LoadStore" : : : "memory"); +} + +inline static void +write_barrier() +{ + __asm__ __volatile__("membar #StoreLoad | #StoreStore" : : : "memory"); +} #else /* Sparc32 implementation, use a spinlock. */ static unsigned char __cas_lock = 0; @@ -109,12 +120,23 @@ release_set(volatile obj_addr_t *addr, obj_addr_t new_val) } inline static bool -compare_and_swap_release(volatile obj_addr_t *addr, - obj_addr_t old, - obj_addr_t new_val) +compare_and_swap_release(volatile obj_addr_t *addr, obj_addr_t old, + obj_addr_t new_val) { 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 /* __arch64__ */ #endif /* ! __SYSDEP_LOCKS_H__ */ |