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
210
211
212
213
214
215
216
217
218
|
/* Interface between GCC C FE and GDB
Copyright (C) 2014-2024 Free Software Foundation, Inc.
This file is part of GCC.
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/>. */
#ifndef GCC_C_INTERFACE_H
#define GCC_C_INTERFACE_H
#include "gcc-interface.h"
/* This header defines the interface to the GCC API. It must be both
valid C and valid C++, because it is included by both programs. */
#ifdef __cplusplus
extern "C" {
#endif
/* Forward declaration. */
struct gcc_c_context;
/*
* Definitions and declarations for the C front end.
*/
/* Defined versions of the C front-end API. */
enum gcc_c_api_version
{
GCC_C_FE_VERSION_0 = 0,
/* Added char_type. Added new version of int_type and float_type,
deprecated int_type_v0 and float_type_v0. */
GCC_C_FE_VERSION_1 = 1,
/* Added finish_record_with_alignment method. */
GCC_C_FE_VERSION_2 = 2,
};
/* Qualifiers. */
enum gcc_qualifiers
{
GCC_QUALIFIER_CONST = 1,
GCC_QUALIFIER_VOLATILE = 2,
GCC_QUALIFIER_RESTRICT = 4
};
/* This enumerates the kinds of decls that GDB can create. */
enum gcc_c_symbol_kind
{
/* A function. */
GCC_C_SYMBOL_FUNCTION,
/* A variable. */
GCC_C_SYMBOL_VARIABLE,
/* A typedef. */
GCC_C_SYMBOL_TYPEDEF,
/* A label. */
GCC_C_SYMBOL_LABEL
};
/* This enumerates the types of symbols that GCC might request from
GDB. */
enum gcc_c_oracle_request
{
/* An ordinary symbol -- a variable, function, typedef, or enum
constant. */
GCC_C_ORACLE_SYMBOL,
/* A struct, union, or enum tag. */
GCC_C_ORACLE_TAG,
/* A label. */
GCC_C_ORACLE_LABEL
};
/* The type of the function called by GCC to ask GDB for a symbol's
definition. DATUM is an arbitrary value supplied when the oracle
function is registered. CONTEXT is the GCC context in which the
request is being made. REQUEST specifies what sort of symbol is
being requested, and IDENTIFIER is the name of the symbol. */
typedef void gcc_c_oracle_function (void *datum,
struct gcc_c_context *context,
enum gcc_c_oracle_request request,
const char *identifier);
/* The type of the function called by GCC to ask GDB for a symbol's
address. This should return 0 if the address is not known. */
typedef gcc_address gcc_c_symbol_address_function (void *datum,
struct gcc_c_context *ctxt,
const char *identifier);
/* The vtable used by the C front end. */
struct gcc_c_fe_vtable
{
/* The version of the C interface. The value is one of the
gcc_c_api_version constants. */
unsigned int c_version;
/* Set the callbacks for this context.
The binding oracle is called whenever the C parser needs to look
up a symbol. This gives the caller a chance to lazily
instantiate symbols using other parts of the gcc_c_fe_interface
API.
The address oracle is called whenever the C parser needs to look
up a symbol. This is only called for symbols not provided by the
symbol oracle -- that is, just built-in functions where GCC
provides the declaration.
DATUM is an arbitrary piece of data that is passed back verbatim
to the callbacks in requests. */
void (*set_callbacks) (struct gcc_c_context *self,
gcc_c_oracle_function *binding_oracle,
gcc_c_symbol_address_function *address_oracle,
void *datum);
#define GCC_METHOD0(R, N) \
R (*N) (struct gcc_c_context *);
#define GCC_METHOD1(R, N, A) \
R (*N) (struct gcc_c_context *, A);
#define GCC_METHOD2(R, N, A, B) \
R (*N) (struct gcc_c_context *, A, B);
#define GCC_METHOD3(R, N, A, B, C) \
R (*N) (struct gcc_c_context *, A, B, C);
#define GCC_METHOD4(R, N, A, B, C, D) \
R (*N) (struct gcc_c_context *, A, B, C, D);
#define GCC_METHOD5(R, N, A, B, C, D, E) \
R (*N) (struct gcc_c_context *, A, B, C, D, E);
#define GCC_METHOD7(R, N, A, B, C, D, E, F, G) \
R (*N) (struct gcc_c_context *, A, B, C, D, E, F, G);
#include "gcc-c-fe.def"
#undef GCC_METHOD0
#undef GCC_METHOD1
#undef GCC_METHOD2
#undef GCC_METHOD3
#undef GCC_METHOD4
#undef GCC_METHOD5
#undef GCC_METHOD7
};
/* The C front end object. */
struct gcc_c_context
{
/* Base class. */
struct gcc_base_context base;
/* Our vtable. This is a separate field because this is simpler
than implementing a vtable inheritance scheme in C. */
const struct gcc_c_fe_vtable *c_ops;
};
/* The name of the .so that the compiler builds. We dlopen this
later. */
#define GCC_C_FE_LIBCC libcc1.so
/* The compiler exports a single initialization function. This macro
holds its name as a symbol. */
#define GCC_C_FE_CONTEXT gcc_c_fe_context
/* The type of the initialization function. The caller passes in the
desired base version and desired C-specific version. If the
request can be satisfied, a compatible gcc_context object will be
returned. In particular, this may return a context object with a higher
actual version number than was requested, provided the higher version is
fully compatible. (As of GCC_C_FE_VERSION_2, this is always true.)
Otherwise, the function returns NULL. */
typedef struct gcc_c_context *gcc_c_fe_context_function
(enum gcc_base_api_version,
enum gcc_c_api_version);
#ifdef __cplusplus
}
#endif
#endif /* GCC_C_INTERFACE_H */
|
