gdb/python: add a new gdb_exiting event
[binutils-gdb.git] / gdb / d-lang.c
1 /* D language support routines for GDB, the GNU debugger.
2
3 Copyright (C) 2005-2021 Free Software Foundation, Inc.
4
5 This file is part of GDB.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20 #include "defs.h"
21 #include "symtab.h"
22 #include "language.h"
23 #include "varobj.h"
24 #include "d-lang.h"
25 #include "c-lang.h"
26 #include "demangle.h"
27 #include "cp-support.h"
28 #include "gdbarch.h"
29 #include "parser-defs.h"
30
31 /* The name of the symbol to use to get the name of the main subprogram. */
32 static const char D_MAIN[] = "D main";
33
34 /* Function returning the special symbol name used by D for the main
35 procedure in the main program if it is found in minimal symbol list.
36 This function tries to find minimal symbols so that it finds them even
37 if the program was compiled without debugging information. */
38
39 const char *
40 d_main_name (void)
41 {
42 struct bound_minimal_symbol msym;
43
44 msym = lookup_minimal_symbol (D_MAIN, NULL, NULL);
45 if (msym.minsym != NULL)
46 return D_MAIN;
47
48 /* No known entry procedure found, the main program is probably not D. */
49 return NULL;
50 }
51
52 /* Implements the la_demangle language_defn routine for language D. */
53
54 gdb::unique_xmalloc_ptr<char>
55 d_demangle (const char *symbol, int options)
56 {
57 return gdb_demangle (symbol, options | DMGL_DLANG);
58 }
59
60 /* Class representing the D language. */
61
62 class d_language : public language_defn
63 {
64 public:
65 d_language ()
66 : language_defn (language_d)
67 { /* Nothing. */ }
68
69 /* See language.h. */
70
71 const char *name () const override
72 { return "d"; }
73
74 /* See language.h. */
75
76 const char *natural_name () const override
77 { return "D"; }
78
79 /* See language.h. */
80
81 const std::vector<const char *> &filename_extensions () const override
82 {
83 static const std::vector<const char *> extensions = { ".d" };
84 return extensions;
85 }
86
87 /* See language.h. */
88 void language_arch_info (struct gdbarch *gdbarch,
89 struct language_arch_info *lai) const override
90 {
91 const struct builtin_d_type *builtin = builtin_d_type (gdbarch);
92
93 /* Helper function to allow shorter lines below. */
94 auto add = [&] (struct type * t)
95 {
96 lai->add_primitive_type (t);
97 };
98
99 add (builtin->builtin_void);
100 add (builtin->builtin_bool);
101 add (builtin->builtin_byte);
102 add (builtin->builtin_ubyte);
103 add (builtin->builtin_short);
104 add (builtin->builtin_ushort);
105 add (builtin->builtin_int);
106 add (builtin->builtin_uint);
107 add (builtin->builtin_long);
108 add (builtin->builtin_ulong);
109 add (builtin->builtin_cent);
110 add (builtin->builtin_ucent);
111 add (builtin->builtin_float);
112 add (builtin->builtin_double);
113 add (builtin->builtin_real);
114 add (builtin->builtin_ifloat);
115 add (builtin->builtin_idouble);
116 add (builtin->builtin_ireal);
117 add (builtin->builtin_cfloat);
118 add (builtin->builtin_cdouble);
119 add (builtin->builtin_creal);
120 add (builtin->builtin_char);
121 add (builtin->builtin_wchar);
122 add (builtin->builtin_dchar);
123
124 lai->set_string_char_type (builtin->builtin_char);
125 lai->set_bool_type (builtin->builtin_bool, "bool");
126 }
127
128 /* See language.h. */
129 bool sniff_from_mangled_name
130 (const char *mangled,
131 gdb::unique_xmalloc_ptr<char> *demangled) const override
132 {
133 *demangled = d_demangle (mangled, 0);
134 return *demangled != NULL;
135 }
136
137 /* See language.h. */
138
139 gdb::unique_xmalloc_ptr<char> demangle_symbol (const char *mangled,
140 int options) const override
141 {
142 return d_demangle (mangled, options);
143 }
144
145 /* See language.h. */
146
147 void print_type (struct type *type, const char *varstring,
148 struct ui_file *stream, int show, int level,
149 const struct type_print_options *flags) const override
150 {
151 c_print_type (type, varstring, stream, show, level, flags);
152 }
153
154 /* See language.h. */
155
156 void value_print_inner
157 (struct value *val, struct ui_file *stream, int recurse,
158 const struct value_print_options *options) const override
159 {
160 return d_value_print_inner (val, stream, recurse, options);
161 }
162
163 /* See language.h. */
164
165 struct block_symbol lookup_symbol_nonlocal
166 (const char *name, const struct block *block,
167 const domain_enum domain) const override
168 {
169 return d_lookup_symbol_nonlocal (this, name, block, domain);
170 }
171
172 /* See language.h. */
173
174 int parser (struct parser_state *ps) const override
175 {
176 return d_parse (ps);
177 }
178
179 /* See language.h. */
180
181 const char *name_of_this () const override
182 { return "this"; }
183 };
184
185 /* Single instance of the D language class. */
186
187 static d_language d_language_defn;
188
189 /* Build all D language types for the specified architecture. */
190
191 static void *
192 build_d_types (struct gdbarch *gdbarch)
193 {
194 struct builtin_d_type *builtin_d_type
195 = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_d_type);
196
197 /* Basic types. */
198 builtin_d_type->builtin_void
199 = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void");
200 builtin_d_type->builtin_bool
201 = arch_boolean_type (gdbarch, 8, 1, "bool");
202 builtin_d_type->builtin_byte
203 = arch_integer_type (gdbarch, 8, 0, "byte");
204 builtin_d_type->builtin_ubyte
205 = arch_integer_type (gdbarch, 8, 1, "ubyte");
206 builtin_d_type->builtin_short
207 = arch_integer_type (gdbarch, 16, 0, "short");
208 builtin_d_type->builtin_ushort
209 = arch_integer_type (gdbarch, 16, 1, "ushort");
210 builtin_d_type->builtin_int
211 = arch_integer_type (gdbarch, 32, 0, "int");
212 builtin_d_type->builtin_uint
213 = arch_integer_type (gdbarch, 32, 1, "uint");
214 builtin_d_type->builtin_long
215 = arch_integer_type (gdbarch, 64, 0, "long");
216 builtin_d_type->builtin_ulong
217 = arch_integer_type (gdbarch, 64, 1, "ulong");
218 builtin_d_type->builtin_cent
219 = arch_integer_type (gdbarch, 128, 0, "cent");
220 builtin_d_type->builtin_ucent
221 = arch_integer_type (gdbarch, 128, 1, "ucent");
222 builtin_d_type->builtin_float
223 = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch),
224 "float", gdbarch_float_format (gdbarch));
225 builtin_d_type->builtin_double
226 = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch),
227 "double", gdbarch_double_format (gdbarch));
228 builtin_d_type->builtin_real
229 = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch),
230 "real", gdbarch_long_double_format (gdbarch));
231
232 builtin_d_type->builtin_byte->set_instance_flags
233 (builtin_d_type->builtin_byte->instance_flags ()
234 | TYPE_INSTANCE_FLAG_NOTTEXT);
235
236 builtin_d_type->builtin_ubyte->set_instance_flags
237 (builtin_d_type->builtin_ubyte->instance_flags ()
238 | TYPE_INSTANCE_FLAG_NOTTEXT);
239
240 /* Imaginary and complex types. */
241 builtin_d_type->builtin_ifloat
242 = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch),
243 "ifloat", gdbarch_float_format (gdbarch));
244 builtin_d_type->builtin_idouble
245 = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch),
246 "idouble", gdbarch_double_format (gdbarch));
247 builtin_d_type->builtin_ireal
248 = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch),
249 "ireal", gdbarch_long_double_format (gdbarch));
250 builtin_d_type->builtin_cfloat
251 = init_complex_type ("cfloat", builtin_d_type->builtin_float);
252 builtin_d_type->builtin_cdouble
253 = init_complex_type ("cdouble", builtin_d_type->builtin_double);
254 builtin_d_type->builtin_creal
255 = init_complex_type ("creal", builtin_d_type->builtin_real);
256
257 /* Character types. */
258 builtin_d_type->builtin_char
259 = arch_character_type (gdbarch, 8, 1, "char");
260 builtin_d_type->builtin_wchar
261 = arch_character_type (gdbarch, 16, 1, "wchar");
262 builtin_d_type->builtin_dchar
263 = arch_character_type (gdbarch, 32, 1, "dchar");
264
265 return builtin_d_type;
266 }
267
268 static struct gdbarch_data *d_type_data;
269
270 /* Return the D type table for the specified architecture. */
271
272 const struct builtin_d_type *
273 builtin_d_type (struct gdbarch *gdbarch)
274 {
275 return (const struct builtin_d_type *) gdbarch_data (gdbarch, d_type_data);
276 }
277
278 void _initialize_d_language ();
279 void
280 _initialize_d_language ()
281 {
282 d_type_data = gdbarch_data_register_post_init (build_d_types);
283 }