1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/* Type stack for GDB parser.
Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "type-stack.h"
#include "gdbtypes.h"
#include "parser-defs.h"
/* See type-stack.h. */
void
type_stack::insert (enum type_pieces tp)
{
union type_stack_elt element;
int slot;
gdb_assert (tp == tp_pointer || tp == tp_reference
|| tp == tp_rvalue_reference || tp == tp_const
|| tp == tp_volatile);
/* If there is anything on the stack (we know it will be a
tp_pointer), insert the qualifier above it. Otherwise, simply
push this on the top of the stack. */
if (!m_elements.empty () && (tp == tp_const || tp == tp_volatile))
slot = 1;
else
slot = 0;
element.piece = tp;
insert_into (slot, element);
}
/* See type-stack.h. */
void
type_stack::insert (struct expr_builder *pstate, const char *string)
{
union type_stack_elt element;
int slot;
/* If there is anything on the stack (we know it will be a
tp_pointer), insert the address space qualifier above it.
Otherwise, simply push this on the top of the stack. */
if (!m_elements.empty ())
slot = 1;
else
slot = 0;
element.piece = tp_space_identifier;
insert_into (slot, element);
element.int_val = address_space_name_to_int (pstate->gdbarch (),
string);
insert_into (slot, element);
}
/* See type-stack.h. */
type_instance_flags
type_stack::follow_type_instance_flags ()
{
type_instance_flags flags = 0;
for (;;)
switch (pop ())
{
case tp_end:
return flags;
case tp_const:
flags |= TYPE_INSTANCE_FLAG_CONST;
break;
case tp_volatile:
flags |= TYPE_INSTANCE_FLAG_VOLATILE;
break;
default:
gdb_assert_not_reached ("unrecognized tp_ value in follow_types");
}
}
/* See type-stack.h. */
struct type *
type_stack::follow_types (struct type *follow_type)
{
int done = 0;
int make_const = 0;
int make_volatile = 0;
int make_addr_space = 0;
int array_size;
while (!done)
switch (pop ())
{
case tp_end:
done = 1;
if (make_const)
follow_type = make_cv_type (make_const,
TYPE_VOLATILE (follow_type),
follow_type, 0);
if (make_volatile)
follow_type = make_cv_type (TYPE_CONST (follow_type),
make_volatile,
follow_type, 0);
if (make_addr_space)
follow_type = make_type_with_address_space (follow_type,
make_addr_space);
make_const = make_volatile = 0;
make_addr_space = 0;
break;
case tp_const:
make_const = 1;
break;
case tp_volatile:
make_volatile = 1;
break;
case tp_space_identifier:
make_addr_space = pop_int ();
break;
case tp_pointer:
follow_type = lookup_pointer_type (follow_type);
if (make_const)
follow_type = make_cv_type (make_const,
TYPE_VOLATILE (follow_type),
follow_type, 0);
if (make_volatile)
follow_type = make_cv_type (TYPE_CONST (follow_type),
make_volatile,
follow_type, 0);
if (make_addr_space)
follow_type = make_type_with_address_space (follow_type,
make_addr_space);
make_const = make_volatile = 0;
make_addr_space = 0;
break;
case tp_reference:
follow_type = lookup_lvalue_reference_type (follow_type);
goto process_reference;
case tp_rvalue_reference:
follow_type = lookup_rvalue_reference_type (follow_type);
process_reference:
if (make_const)
follow_type = make_cv_type (make_const,
TYPE_VOLATILE (follow_type),
follow_type, 0);
if (make_volatile)
follow_type = make_cv_type (TYPE_CONST (follow_type),
make_volatile,
follow_type, 0);
if (make_addr_space)
follow_type = make_type_with_address_space (follow_type,
make_addr_space);
make_const = make_volatile = 0;
make_addr_space = 0;
break;
case tp_array:
array_size = pop_int ();
/* FIXME-type-allocation: need a way to free this type when we are
done with it. */
follow_type =
lookup_array_range_type (follow_type,
0, array_size >= 0 ? array_size - 1 : 0);
if (array_size < 0)
TYPE_HIGH_BOUND_KIND (TYPE_INDEX_TYPE (follow_type))
= PROP_UNDEFINED;
break;
case tp_function:
/* FIXME-type-allocation: need a way to free this type when we are
done with it. */
follow_type = lookup_function_type (follow_type);
break;
case tp_function_with_arguments:
{
std::vector<struct type *> *args = pop_typelist ();
follow_type
= lookup_function_type_with_arguments (follow_type,
args->size (),
args->data ());
}
break;
case tp_type_stack:
{
struct type_stack *stack = pop_type_stack ();
follow_type = stack->follow_types (follow_type);
}
break;
default:
gdb_assert_not_reached ("unrecognized tp_ value in follow_types");
}
return follow_type;
}
|
