1 files changed, 308 insertions, 0 deletions
diff --git a/contrib/gcc/hooks.c b/contrib/gcc/hooks.c
new file mode 100644
index 0000000..18b17dc
--- /dev/null
+++ b/contrib/gcc/hooks.c
@@ -0,0 +1,308 @@
+/* General-purpose hooks.
+   Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+
+This program 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 2, or (at your option) any
+later version.
+
+This program 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 this program; if not, write to the Free Software
+Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ In other words, you are welcome to use, share and improve this program.
+ You are forbidden to forbid anyone else to use, share and improve
+ what you give them.   Help stamp out software-hoarding!  */
+
+/* This file contains generic hooks that can be used as defaults for
+   target or language-dependent hook initializers.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "hooks.h"
+
+/* Generic hook that does absolutely zappo.  */
+void
+hook_void_void (void)
+{
+}
+
+/* Generic hook that takes no arguments and returns false.  */
+bool
+hook_bool_void_false (void)
+{
+  return false;
+}
+
+/* Generic hook that takes no arguments and returns true.  */
+bool
+hook_bool_void_true (void)
+{
+  return true;
+}
+
+/* Generic hook that takes no arguments and returns NO_REGS.  */
+int
+hook_int_void_no_regs (void)
+{
+  return NO_REGS;
+}
+
+/* Generic hook that takes (bool) and returns false.  */
+bool
+hook_bool_bool_false (bool a ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+/* Generic hook that takes (enum machine_mode) and returns false.  */
+bool
+hook_bool_mode_false (enum machine_mode mode ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+/* Generic hook that takes (enum machine_mode, rtx) and returns false.  */
+bool
+hook_bool_mode_rtx_false (enum machine_mode mode ATTRIBUTE_UNUSED,
+			  rtx value ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+/* Generic hook that takes (enum machine_mode, rtx) and returns true.  */
+bool
+hook_bool_mode_rtx_true (enum machine_mode mode ATTRIBUTE_UNUSED,
+			 rtx value ATTRIBUTE_UNUSED)
+{
+  return true;
+}
+
+/* Generic hook that takes (FILE *, const char *) and does nothing.  */
+void
+hook_void_FILEptr_constcharptr (FILE *a ATTRIBUTE_UNUSED, const char *b ATTRIBUTE_UNUSED)
+{
+}
+
+/* Used for the TARGET_ASM_CAN_OUTPUT_MI_THUNK hook.  */
+bool
+hook_bool_tree_hwi_hwi_tree_false (tree a ATTRIBUTE_UNUSED,
+				   HOST_WIDE_INT b ATTRIBUTE_UNUSED,
+				   HOST_WIDE_INT c ATTRIBUTE_UNUSED,
+				   tree d ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+bool
+hook_bool_tree_hwi_hwi_tree_true (tree a ATTRIBUTE_UNUSED,
+				  HOST_WIDE_INT b ATTRIBUTE_UNUSED,
+				  HOST_WIDE_INT c ATTRIBUTE_UNUSED,
+				  tree d ATTRIBUTE_UNUSED)
+{
+  return true;
+}
+
+bool
+hook_bool_constcharptr_size_t_false (const char *a ATTRIBUTE_UNUSED,
+				     size_t b ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+bool
+hook_bool_size_t_constcharptr_int_true (size_t a ATTRIBUTE_UNUSED,
+					const char *b ATTRIBUTE_UNUSED,
+					int c ATTRIBUTE_UNUSED)
+{
+  return true;
+}
+
+bool
+default_can_output_mi_thunk_no_vcall (tree a ATTRIBUTE_UNUSED,
+				      HOST_WIDE_INT b ATTRIBUTE_UNUSED,
+				      HOST_WIDE_INT c,
+				      tree d ATTRIBUTE_UNUSED)
+{
+  return c == 0;
+}
+
+int
+hook_int_tree_0 (tree a ATTRIBUTE_UNUSED)
+{
+  return 0;
+}
+
+/* ??? Used for comp_type_attributes, which ought to return bool.  */
+int
+hook_int_tree_tree_1 (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
+{
+  return 1;
+}
+
+int
+hook_int_rtx_0 (rtx a ATTRIBUTE_UNUSED)
+{
+  return 0;
+}
+
+int
+hook_int_size_t_constcharptr_int_0 (size_t a ATTRIBUTE_UNUSED,
+				    const char *b ATTRIBUTE_UNUSED,
+				    int c ATTRIBUTE_UNUSED)
+{
+  return 0;
+}
+
+unsigned int
+hook_uint_uint_constcharptrptr_0 (unsigned int a ATTRIBUTE_UNUSED,
+				  const char **b ATTRIBUTE_UNUSED)
+{
+  return 0;
+}
+
+void
+hook_void_tree (tree a ATTRIBUTE_UNUSED)
+{
+}
+
+void
+hook_void_constcharptr (const char *a ATTRIBUTE_UNUSED)
+{
+}
+
+void
+hook_void_tree_treeptr (tree a ATTRIBUTE_UNUSED, tree *b ATTRIBUTE_UNUSED)
+{
+}
+
+bool
+hook_bool_tree_false (tree a ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+bool
+hook_bool_tree_true (tree a ATTRIBUTE_UNUSED)
+{
+  return true;
+}
+
+bool
+hook_bool_tree_tree_false (tree a ATTRIBUTE_UNUSED, tree b ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+bool
+hook_bool_tree_bool_false (tree a ATTRIBUTE_UNUSED, bool b ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+bool
+hook_bool_rtx_false (rtx a ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+bool
+hook_bool_uintp_uintp_false (unsigned int *a ATTRIBUTE_UNUSED,
+			     unsigned int *b ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+bool
+hook_bool_rtx_int_int_intp_false (rtx a ATTRIBUTE_UNUSED,
+				  int b ATTRIBUTE_UNUSED,
+				  int c ATTRIBUTE_UNUSED,
+				  int *d ATTRIBUTE_UNUSED)
+{
+  return false;
+}
+
+/* Generic hook that takes an rtx and returns it.  */
+rtx
+hook_rtx_rtx_identity (rtx x)
+{
+  return x;
+}
+
+/* Generic hook that takes an rtx and returns NULL_RTX.  */
+rtx
+hook_rtx_rtx_null (rtx x ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+/* Generic hook that takes a tree and an int and returns NULL_RTX.  */
+rtx
+hook_rtx_tree_int_null (tree a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+/* Generic hook that takes three trees and returns the last one as is.  */
+tree
+hook_tree_tree_tree_tree_3rd_identity (tree a ATTRIBUTE_UNUSED,
+				       tree b ATTRIBUTE_UNUSED, tree c)
+{
+  return c;
+}
+
+/* Generic hook that takes a tree and returns a NULL string.  */
+const char *
+hook_constcharptr_tree_null (tree t ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+tree
+hook_tree_tree_tree_bool_null (tree t0 ATTRIBUTE_UNUSED, tree t1 ATTRIBUTE_UNUSED,
+			       bool ignore ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+tree
+hook_tree_tree_tree_null (tree t0 ATTRIBUTE_UNUSED, tree t1 ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+/* Generic hook that takes a rtx and returns a NULL string.  */
+const char *
+hook_constcharptr_rtx_null (rtx r ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+const char *
+hook_constcharptr_tree_tree_null (tree t0 ATTRIBUTE_UNUSED,
+				  tree t1 ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+const char *
+hook_constcharptr_int_tree_null (int i ATTRIBUTE_UNUSED,
+				 tree t0 ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+const char *
+hook_constcharptr_int_tree_tree_null (int i ATTRIBUTE_UNUSED,
+				      tree t0 ATTRIBUTE_UNUSED,
+				      tree t1 ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}