Rename: src/ia64/flush_cache-ia64.c -> src/mi/flush_cache.c

(Logical change 1.162)

src/mi/flush_cache.c

@@ -0,0 +1,46 @@
+/* libunwind - a platform-independent unwind library
+   Copyright (C) 2002-2004 Hewlett-Packard Co
+	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+
+This file is part of libunwind.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#include "internal.h"
+#include "tdep.h"
+
+PROTECTED void
+unw_flush_cache (unw_addr_space_t as, unw_word_t lo, unw_word_t hi)
+{
+  /* clear dyn_info_list_addr cache: */
+  as->dyn_info_list_addr = 0;
+
+  /* This lets us flush caches lazily.  The implementation currently
+     ignores the flush range arguments (lo-hi).  This is OK because
+     unw_flush_cache() is allowed to flush more than the requested
+     range. */
+
+#ifdef HAVE_FETCH_AND_ADD1
+  fetch_and_add1 (&as->cache_generation);
+#else
+# warning unw_flush_cache(): need a way to atomically increment an integer.
+  ++as->cache_generation;
+#endif
+}