1 /* Mudflap: narrow-pointer bounds-checking by tree rewriting.
2 Copyright (C) 2001, 2002, 2003, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
4 Contributed by Frank Ch. Eigler <fche@redhat.com>
5
6 This file is part of GCC.
7
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
11 version.
12
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
21
22
23 #include "config.h"
24 #include "system.h"
25 #include "coretypes.h"
26 #include "tm.h"
27 #include "tree.h"
28 #include "tree-inline.h"
29 #include "gimple.h"
30 #include "hashtab.h"
31 #include "output.h"
32 #include "langhooks.h"
33 #include "tree-mudflap.h"
34 #include "tree-pass.h"
35 #include "ggc.h"
36 #include "diagnostic-core.h"
37
38
39
40 /* This file contains placeholder functions, to be used only for
41 language processors that cannot handle tree-mudflap.c directly.
42 (e.g. Fortran). */
43
44 static void
nogo(void)45 nogo (void)
46 {
47 sorry ("mudflap: this language is not supported");
48 }
49
50 void
mudflap_enqueue_decl(tree obj ATTRIBUTE_UNUSED)51 mudflap_enqueue_decl (tree obj ATTRIBUTE_UNUSED)
52 {
53 nogo ();
54 }
55
56 void
mudflap_enqueue_constant(tree obj ATTRIBUTE_UNUSED)57 mudflap_enqueue_constant (tree obj ATTRIBUTE_UNUSED)
58 {
59 nogo ();
60 }
61
62 void
mudflap_finish_file(void)63 mudflap_finish_file (void)
64 {
65 nogo ();
66 }
67
68 int
mf_marked_p(tree t ATTRIBUTE_UNUSED)69 mf_marked_p (tree t ATTRIBUTE_UNUSED)
70 {
71 nogo ();
72 return 0;
73 }
74
75 tree
mf_mark(tree t ATTRIBUTE_UNUSED)76 mf_mark (tree t ATTRIBUTE_UNUSED)
77 {
78 nogo ();
79 return NULL;
80 }
81
82 /* The pass structures must exist, but need not do anything. */
83
84 static bool
gate_mudflap(void)85 gate_mudflap (void)
86 {
87 return flag_mudflap != 0;
88 }
89
90 struct gimple_opt_pass pass_mudflap_1 =
91 {
92 {
93 GIMPLE_PASS,
94 "mudflap1", /* name */
95 gate_mudflap, /* gate */
96 NULL, /* execute */
97 NULL, /* sub */
98 NULL, /* next */
99 0, /* static_pass_number */
100 TV_NONE, /* tv_id */
101 0, /* properties_required */
102 0, /* properties_provided */
103 0, /* properties_destroyed */
104 0, /* todo_flags_start */
105 0 /* todo_flags_finish */
106 }
107 };
108
109 struct gimple_opt_pass pass_mudflap_2 =
110 {
111 {
112 GIMPLE_PASS,
113 "mudflap2", /* name */
114 gate_mudflap, /* gate */
115 NULL, /* execute */
116 NULL, /* sub */
117 NULL, /* next */
118 0, /* static_pass_number */
119 TV_NONE, /* tv_id */
120 0, /* properties_required */
121 0, /* properties_provided */
122 0, /* properties_destroyed */
123 0, /* todo_flags_start */
124 0 /* todo_flags_finish */
125 }
126 };
127
128 /* Instead of:
129 #include "gt-tree-mudflap.h"
130 We prepare a little dummy struct here.
131 */
132
133 EXPORTED_CONST struct ggc_root_tab gt_ggc_r_gt_tree_mudflap_h[] = {
134 LAST_GGC_ROOT_TAB
135 };
136