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$NetBSD: patch-boost_context_detail_fcontext__sparc.hpp,v 1.1 2013/01/20 09:06:59 martin Exp $
# Implementation details for sparc
--- /dev/null 2013-01-19 12:02:03.000000000 +0100
+++ boost/context/detail/fcontext_sparc.hpp 2013-01-19 19:21:19.000000000 +0100
@@ -0,0 +1,90 @@
+// Copyright Martin Husemann 2012
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_CTX_DETAIL_FCONTEXT_SPARC_H
+#define BOOST_CTX_DETAIL_FCONTEXT_SPARC_H
+
+#include <cstddef>
+
+#include <boost/config.hpp>
+#include <boost/cstdint.hpp>
+
+#include <boost/context/detail/config.hpp>
+
+#ifdef BOOST_HAS_ABI_HEADERS
+# include BOOST_ABI_PREFIX
+#endif
+
+namespace boost {
+namespace context {
+
+extern "C" {
+
+#define BOOST_CONTEXT_CALLDECL
+
+// if defined(_LP64) we are compiling for sparc64, otherwise it is 32 bit
+// sparc.
+
+
+struct stack_t
+{
+ void * sp;
+ std::size_t size;
+
+ stack_t() :
+ sp( 0), size( 0)
+ {}
+};
+
+struct fp_t
+{
+#ifdef _LP64
+ boost::uint64_t fp_freg[32];
+ boost::uint64_t fp_fprs, fp_fsr;
+#else
+ boost::uint64_t fp_freg[16];
+ boost::uint32_t fp_fsr;
+#endif
+
+ fp_t() :
+ fp_freg(),
+#ifdef _LP64
+ fp_fprs(),
+#endif
+ fp_fsr()
+ {}
+}
+#ifdef _LP64
+ __attribute__((__aligned__(64))) // allow VIS instructions to be used
+#endif
+;
+
+struct fcontext_t
+{
+ fp_t fc_fp; // fpu stuff first, for easier alignement
+#ifdef _LP64
+ boost::uint64_t
+#else
+ boost::uint32_t
+#endif
+ fc_greg[8];
+ stack_t fc_stack;
+
+ fcontext_t() :
+ fc_fp(),
+ fc_greg(),
+ fc_stack()
+ {}
+};
+
+}
+
+}}
+
+#ifdef BOOST_HAS_ABI_HEADERS
+# include BOOST_ABI_SUFFIX
+#endif
+
+#endif // BOOST_CTX_DETAIL_FCONTEXT_SPARC_H
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