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| author | andreast <andreast@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-01-27 21:46:15 +0000 |
|---|---|---|
| committer | andreast <andreast@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-01-27 21:46:15 +0000 |
| commit | 8ab9cbcc0753e0f5c0b1ed94d9f7d12b78d2b83a (patch) | |
| tree | cc2a10bedf005955d32e29d096cd5baff68d2ba8 /libjava/sysdep | |
| parent | 87d210c34104f0f5944dd5b6f46b7fda0b8223b0 (diff) | |
| download | ppe42-gcc-8ab9cbcc0753e0f5c0b1ed94d9f7d12b78d2b83a.tar.gz ppe42-gcc-8ab9cbcc0753e0f5c0b1ed94d9f7d12b78d2b83a.zip | |
2007-01-27 Andreas Tobler <a.tobler@schweiz.org>
PR libgcj/30513
* configure.host: Add forgottten sysdep_dir to sparc. Add a flag to
libgcj_flags to undefine 'sun' at compile time.
* sysdep/sparc/locks.h (read_barrier): New functions for 32 and 64 bit
Sparc.
(write_barrier): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121239 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libjava/sysdep')
| -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 7339567d7d4..7c30d7c3b0f 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__ */ |
