Imported gcc-4.4.3

[msp430-gcc.git] / gcc / config / sh / sh-c.c

diff --git a/gcc/config/sh/sh-c.c b/gcc/config/sh/sh-c.c
new file mode 100644 (file)
index 0000000..2fdff54
--- /dev/null
+++ b/gcc/config/sh/sh-c.c
@@ -0,0 +1,68 @@
+/* Pragma handling for GCC for Renesas / SuperH SH.
+   Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+   2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+   Contributed by Joern Rennecke <joern.rennecke@st.com>.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "tree.h"
+#include "tm_p.h"
+
+/* Handle machine specific pragmas to be semi-compatible with Renesas
+   compiler.  */
+
+/* Add ATTR to the attributes of the current function.  If there is no
+   such function, save it to be added to the attributes of the next
+   function.  */
+static void
+sh_add_function_attribute (const char *attr)
+{
+  tree id = get_identifier (attr);
+
+  if (current_function_decl)
+    decl_attributes (&current_function_decl,
+                    tree_cons (id, NULL_TREE, NULL_TREE), 0);
+  else
+    {
+      *sh_deferred_function_attributes_tail
+       = tree_cons (id, NULL_TREE, *sh_deferred_function_attributes_tail);
+      sh_deferred_function_attributes_tail
+       = &TREE_CHAIN (*sh_deferred_function_attributes_tail);
+    }
+}
+
+void
+sh_pr_interrupt (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
+{
+  sh_add_function_attribute ("interrupt_handler");
+}
+
+void
+sh_pr_trapa (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
+{
+  sh_add_function_attribute ("trapa_handler");
+}
+
+void
+sh_pr_nosave_low_regs (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
+{
+  sh_add_function_attribute ("nosave_low_regs");
+}