gcc/tree-nomudflap.c

   1 /* Mudflap: narrow-pointer bounds-checking by tree rewriting.
   2    Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
   3    Contributed by Frank Ch. Eigler <fche@redhat.com>
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22
  23 #include "config.h"
  24 #include "errors.h"
  25 #include "system.h"
  26 #include "coretypes.h"
  27 #include "tm.h"
  28 #include "tree.h"
  29 #include "tree-inline.h"
  30 #include "c-tree.h"
  31 #include "c-common.h"
  32 #include "tree-gimple.h"
  33 #include "diagnostic.h"
  34 #include "hashtab.h"
  35 #include "output.h"
  36 #include "varray.h"
  37 #include "langhooks.h"
  38 #include "tree-mudflap.h"
  39 #include "tree-pass.h"
  40 #include "ggc.h"
  41
  42
  43
  44 /* This file contains placeholder functions, to be used only for
  45    language processors that cannot handle tree-mudflap.c directly.
  46    (e.g. Fortran).  */
  47
  48 static void
  49 nogo (void)
  50 {
  51   internal_error ("mudflap: this language is not supported");
  52 }
  53
  54 void
  55 mudflap_enqueue_decl (tree obj ATTRIBUTE_UNUSED)
  56 {
  57   nogo ();
  58 }
  59
  60 void
  61 mudflap_enqueue_constant (tree obj ATTRIBUTE_UNUSED)
  62 {
  63   nogo ();
  64 }
  65
  66 void
  67 mudflap_finish_file (void)
  68 {
  69   nogo ();
  70 }
  71
  72 int
  73 mf_marked_p (tree t ATTRIBUTE_UNUSED)
  74 {
  75   nogo ();
  76   return 0;
  77 }
  78
  79 tree
  80 mf_mark (tree t ATTRIBUTE_UNUSED)
  81 {
  82   nogo ();
  83   return NULL;
  84 }
  85
  86 /* The pass structures must exist, but need not do anything.  */
  87
  88 struct tree_opt_pass pass_mudflap_1 =
  89 {
  90   "mudflap1",                           /* name */
  91   NULL,                                 /* gate */
  92   NULL,                                 /* execute */
  93   NULL,                                 /* sub */
  94   NULL,                                 /* next */
  95   0,                                    /* static_pass_number */
  96   0,                                    /* tv_id */
  97   0,                                    /* properties_required */
  98   0,                                    /* properties_provided */
  99   0,                                    /* properties_destroyed */
 100   0,                                    /* todo_flags_start */
 101   0,                                    /* todo_flags_finish */
 102   0                                     /* letter */
 103 };
 104
 105 struct tree_opt_pass pass_mudflap_2 =
 106 {
 107   "mudflap2",                           /* name */
 108   NULL,                                 /* gate */
 109   NULL,                                 /* execute */
 110   NULL,                                 /* sub */
 111   NULL,                                 /* next */
 112   0,                                    /* static_pass_number */
 113   0,                                    /* tv_id */
 114   0,                                    /* properties_required */
 115   0,                                    /* properties_provided */
 116   0,                                    /* properties_destroyed */
 117   0,                                    /* todo_flags_start */
 118   0,                                    /* todo_flags_finish */
 119   0                                     /* letter */
 120 };
 121
 122 /* Instead of:
 123 #include "gt-tree-mudflap.h"
 124 We prepare a little dummy struct here.
 125 */
 126
 127 const struct ggc_root_tab gt_ggc_r_gt_tree_mudflap_h[] = {
 128   LAST_GGC_ROOT_TAB
 129 };