]>
Commit | Line | Data |
---|---|---|
37e1634e | 1 | /* Implementation of class record_layout. |
a945c346 | 2 | Copyright (C) 2022-2024 Free Software Foundation, Inc. |
37e1634e DM |
3 | Contributed by David Malcolm <dmalcolm@redhat.com>. |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GCC; see the file COPYING3. If not see | |
19 | <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #include "config.h" | |
22 | #define INCLUDE_MEMORY | |
23 | #include "system.h" | |
24 | #include "coretypes.h" | |
25 | #include "tree.h" | |
26 | #include "function.h" | |
27 | #include "basic-block.h" | |
28 | #include "gimple.h" | |
a242f696 | 29 | #include "diagnostic-core.h" |
37e1634e DM |
30 | #include "diagnostic.h" |
31 | #include "tree-diagnostic.h" | |
32 | #include "analyzer/analyzer.h" | |
33 | #include "analyzer/record-layout.h" | |
34 | ||
35 | #if ENABLE_ANALYZER | |
36 | ||
37 | namespace ana { | |
38 | ||
39 | /* class record_layout. */ | |
40 | ||
41 | record_layout::record_layout (tree record_type) | |
42 | { | |
43 | gcc_assert (TREE_CODE (record_type) == RECORD_TYPE); | |
44 | ||
45 | for (tree iter = TYPE_FIELDS (record_type); iter != NULL_TREE; | |
46 | iter = DECL_CHAIN (iter)) | |
47 | { | |
48 | if (TREE_CODE (iter) == FIELD_DECL) | |
49 | { | |
50 | int iter_field_offset = int_bit_position (iter); | |
51 | bit_size_t size_in_bits; | |
52 | if (!int_size_in_bits (TREE_TYPE (iter), &size_in_bits)) | |
53 | size_in_bits = 0; | |
54 | ||
55 | maybe_pad_to (iter_field_offset); | |
56 | ||
57 | /* Add field. */ | |
58 | m_items.safe_push (item (bit_range (iter_field_offset, | |
59 | size_in_bits), | |
60 | iter, false)); | |
61 | } | |
62 | } | |
63 | ||
64 | /* Add any trailing padding. */ | |
65 | bit_size_t size_in_bits; | |
66 | if (int_size_in_bits (record_type, &size_in_bits)) | |
67 | maybe_pad_to (size_in_bits); | |
68 | } | |
69 | ||
70 | void | |
71 | record_layout::dump_to_pp (pretty_printer *pp) const | |
72 | { | |
73 | unsigned i; | |
74 | item *it; | |
75 | FOR_EACH_VEC_ELT (m_items, i, it) | |
76 | { | |
77 | it->dump_to_pp (pp); | |
78 | pp_newline (pp); | |
79 | } | |
80 | } | |
81 | ||
82 | void | |
83 | record_layout::dump () const | |
84 | { | |
85 | pretty_printer pp; | |
86 | pp_format_decoder (&pp) = default_tree_printer; | |
87 | pp.buffer->stream = stderr; | |
88 | dump_to_pp (&pp); | |
89 | pp_flush (&pp); | |
90 | } | |
91 | ||
92 | const record_layout::item * | |
93 | record_layout::get_item_at (bit_offset_t offset) const | |
94 | { | |
95 | unsigned i; | |
96 | item *it; | |
97 | FOR_EACH_VEC_ELT (m_items, i, it) | |
98 | if (it->contains_p (offset)) | |
99 | return it; | |
100 | return NULL; | |
101 | } | |
102 | ||
103 | /* Subroutine of ctor. Add padding item to NEXT_OFFSET if necessary. */ | |
104 | ||
105 | void | |
106 | record_layout::maybe_pad_to (bit_offset_t next_offset) | |
107 | { | |
108 | if (m_items.length () > 0) | |
109 | { | |
110 | const item &last_item = m_items[m_items.length () - 1]; | |
111 | bit_offset_t offset_after_last_item | |
112 | = last_item.get_next_bit_offset (); | |
113 | if (next_offset > offset_after_last_item) | |
114 | { | |
115 | bit_size_t padding_size | |
116 | = next_offset - offset_after_last_item; | |
117 | m_items.safe_push (item (bit_range (offset_after_last_item, | |
118 | padding_size), | |
119 | last_item.m_field, true)); | |
120 | } | |
121 | } | |
122 | } | |
123 | ||
124 | } // namespace ana | |
125 | ||
126 | #endif /* #if ENABLE_ANALYZER */ |