blob: ea6613f7009c6121aaf1b466b6a9da73381a462f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
$NetBSD: patch-boost_atomic_detail_ops_gcc_sparc.hpp,v 1.2 2017/01/01 15:32:47 adam Exp $
provide a fence_before_store() for sparc, which fixes the build.
--- boost/atomic/detail/ops_gcc_sparc.hpp.orig 2017-01-01 02:18:57.000000000 +0000
+++ boost/atomic/detail/ops_gcc_sparc.hpp
@@ -36,6 +36,12 @@ struct gcc_sparc_cas_base
{
static BOOST_CONSTEXPR_OR_CONST bool is_always_lock_free = true;
+ static BOOST_FORCEINLINE void fence_before_store(memory_order order) BOOST_NOEXCEPT
+ {
+ if ((order & memory_order_release) != 0)
+ hardware_full_fence();
+ }
+
static BOOST_FORCEINLINE void fence_before(memory_order order) BOOST_NOEXCEPT
{
if (order == memory_order_seq_cst)
@@ -57,6 +63,11 @@ struct gcc_sparc_cas_base
if (order == memory_order_seq_cst)
__asm__ __volatile__ ("membar #Sync" ::: "memory");
}
+
+ static BOOST_FORCEINLINE void hardware_full_fence() BOOST_NOEXCEPT
+ {
+ __asm__ __volatile__ ("membar #Sync" ::: "memory");
+ }
};
template< bool Signed >
|
