Commit | Line | Data |
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8b93c638 JM |
1 | /* Longjump free calls to gdb internal routines. |
2 | Copyright 1999 Free Software Foundation, Inc. | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
16 | Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
18 | ||
19 | #include "defs.h" | |
20 | #include "value.h" | |
21 | #include "frame.h" | |
22 | #include "wrapper.h" | |
23 | ||
1d1358b6 | 24 | /* Use this struct to pass arguments to wrapper routines. We assume |
8b93c638 JM |
25 | (arbitrarily) that no gdb function takes more than ten arguments. */ |
26 | struct gdb_wrapper_arguments | |
27 | { | |
28 | ||
29 | /* Pointer to some result from the gdb function call, if any */ | |
1d1358b6 MS |
30 | union wrapper_results |
31 | { | |
32 | int integer; | |
33 | void *pointer; | |
34 | } result; | |
35 | ||
8b93c638 JM |
36 | |
37 | /* The list of arguments. */ | |
1d1358b6 MS |
38 | union wrapper_args |
39 | { | |
40 | int integer; | |
41 | void *pointer; | |
42 | } args[10]; | |
8b93c638 JM |
43 | }; |
44 | ||
a14ed312 | 45 | static int wrap_parse_exp_1 (char *); |
73a93a32 | 46 | |
a14ed312 | 47 | static int wrap_evaluate_expression (char *); |
8b93c638 | 48 | |
a14ed312 | 49 | static int wrap_value_fetch_lazy (char *); |
8b93c638 | 50 | |
a14ed312 | 51 | static int wrap_value_equal (char *); |
8b93c638 | 52 | |
a14ed312 | 53 | static int wrap_value_subscript (char *); |
8310b29b | 54 | |
a14ed312 | 55 | static int wrap_value_ind (char *opaque_arg); |
8b93c638 | 56 | |
287e3058 | 57 | static int wrap_parse_and_eval_type (char *); |
c91ecb25 | 58 | |
73a93a32 | 59 | int |
fba45db2 KB |
60 | gdb_parse_exp_1 (char **stringptr, struct block *block, int comma, |
61 | struct expression **expression) | |
73a93a32 JI |
62 | { |
63 | struct gdb_wrapper_arguments args; | |
1d1358b6 MS |
64 | args.args[0].pointer = stringptr; |
65 | args.args[1].pointer = block; | |
66 | args.args[2].integer = comma; | |
73a93a32 JI |
67 | |
68 | if (!catch_errors ((catch_errors_ftype *) wrap_parse_exp_1, &args, | |
69 | "", RETURN_MASK_ERROR)) | |
70 | { | |
71 | /* An error occurred */ | |
72 | return 0; | |
73 | } | |
74 | ||
1d1358b6 | 75 | *expression = (struct expression *) args.result.pointer; |
73a93a32 JI |
76 | return 1; |
77 | ||
78 | } | |
79 | ||
287e3058 | 80 | static int |
fba45db2 | 81 | wrap_parse_exp_1 (char *argptr) |
73a93a32 JI |
82 | { |
83 | struct gdb_wrapper_arguments *args | |
84 | = (struct gdb_wrapper_arguments *) argptr; | |
1d1358b6 MS |
85 | args->result.pointer = parse_exp_1((char **) args->args[0].pointer, |
86 | (struct block *) args->args[1].pointer, | |
87 | args->args[2].integer); | |
73a93a32 JI |
88 | return 1; |
89 | } | |
90 | ||
8b93c638 | 91 | int |
fba45db2 | 92 | gdb_evaluate_expression (struct expression *exp, value_ptr *value) |
8b93c638 JM |
93 | { |
94 | struct gdb_wrapper_arguments args; | |
1d1358b6 | 95 | args.args[0].pointer = exp; |
8b93c638 JM |
96 | |
97 | if (!catch_errors ((catch_errors_ftype *) wrap_evaluate_expression, &args, | |
98 | "", RETURN_MASK_ERROR)) | |
99 | { | |
100 | /* An error occurred */ | |
101 | return 0; | |
102 | } | |
103 | ||
1d1358b6 | 104 | *value = (value_ptr) args.result.pointer; |
8b93c638 JM |
105 | return 1; |
106 | } | |
107 | ||
287e3058 | 108 | static int |
fba45db2 | 109 | wrap_evaluate_expression (char *a) |
8b93c638 JM |
110 | { |
111 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a; | |
112 | ||
1d1358b6 MS |
113 | (args)->result.pointer = |
114 | (char *) evaluate_expression ((struct expression *) args->args[0].pointer); | |
8b93c638 JM |
115 | return 1; |
116 | } | |
117 | ||
118 | int | |
fba45db2 | 119 | gdb_value_fetch_lazy (value_ptr value) |
8b93c638 JM |
120 | { |
121 | struct gdb_wrapper_arguments args; | |
122 | ||
1d1358b6 | 123 | args.args[0].pointer = value; |
8b93c638 JM |
124 | return catch_errors ((catch_errors_ftype *) wrap_value_fetch_lazy, &args, |
125 | "", RETURN_MASK_ERROR); | |
126 | } | |
127 | ||
287e3058 | 128 | static int |
fba45db2 | 129 | wrap_value_fetch_lazy (char *a) |
8b93c638 JM |
130 | { |
131 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a; | |
132 | ||
1d1358b6 | 133 | value_fetch_lazy ((value_ptr) (args)->args[0].pointer); |
8b93c638 JM |
134 | return 1; |
135 | } | |
136 | ||
137 | int | |
fba45db2 | 138 | gdb_value_equal (value_ptr val1, value_ptr val2, int *result) |
8b93c638 JM |
139 | { |
140 | struct gdb_wrapper_arguments args; | |
141 | ||
1d1358b6 MS |
142 | args.args[0].pointer = val1; |
143 | args.args[1].pointer = val2; | |
8b93c638 JM |
144 | |
145 | if (!catch_errors ((catch_errors_ftype *) wrap_value_equal, &args, | |
146 | "", RETURN_MASK_ERROR)) | |
147 | { | |
148 | /* An error occurred */ | |
149 | return 0; | |
150 | } | |
151 | ||
1d1358b6 | 152 | *result = args.result.integer; |
8b93c638 JM |
153 | return 1; |
154 | } | |
155 | ||
287e3058 | 156 | static int |
fba45db2 | 157 | wrap_value_equal (char *a) |
8b93c638 JM |
158 | { |
159 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a; | |
160 | value_ptr val1, val2; | |
161 | ||
1d1358b6 MS |
162 | val1 = (value_ptr) (args)->args[0].pointer; |
163 | val2 = (value_ptr) (args)->args[1].pointer; | |
8b93c638 | 164 | |
1d1358b6 | 165 | (args)->result.integer = value_equal (val1, val2); |
8b93c638 JM |
166 | return 1; |
167 | } | |
168 | ||
8310b29b | 169 | int |
fba45db2 | 170 | gdb_value_subscript (value_ptr val1, value_ptr val2, value_ptr *rval) |
8310b29b FN |
171 | { |
172 | struct gdb_wrapper_arguments args; | |
173 | ||
174 | args.args[0].pointer = val1; | |
175 | args.args[1].pointer = val2; | |
176 | ||
177 | if (!catch_errors ((catch_errors_ftype *) wrap_value_subscript, &args, | |
178 | "", RETURN_MASK_ERROR)) | |
179 | { | |
180 | /* An error occurred */ | |
181 | return 0; | |
182 | } | |
183 | ||
184 | *rval = (value_ptr) args.result.pointer; | |
185 | return 1; | |
186 | } | |
187 | ||
287e3058 | 188 | static int |
fba45db2 | 189 | wrap_value_subscript (char *a) |
8310b29b FN |
190 | { |
191 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a; | |
192 | value_ptr val1, val2; | |
193 | ||
194 | val1 = (value_ptr) (args)->args[0].pointer; | |
195 | val2 = (value_ptr) (args)->args[1].pointer; | |
196 | ||
197 | (args)->result.pointer = value_subscript (val1, val2); | |
198 | return 1; | |
199 | } | |
200 | ||
8b93c638 | 201 | int |
fba45db2 | 202 | gdb_value_ind (value_ptr val, value_ptr *rval) |
8b93c638 JM |
203 | { |
204 | struct gdb_wrapper_arguments args; | |
205 | ||
1d1358b6 | 206 | args.args[0].pointer = val; |
8b93c638 JM |
207 | |
208 | if (!catch_errors ((catch_errors_ftype *) wrap_value_ind, &args, | |
209 | "", RETURN_MASK_ERROR)) | |
210 | { | |
211 | /* An error occurred */ | |
212 | return 0; | |
213 | } | |
214 | ||
1d1358b6 | 215 | *rval = (value_ptr) args.result.pointer; |
8b93c638 JM |
216 | return 1; |
217 | } | |
218 | ||
287e3058 | 219 | static int |
fba45db2 | 220 | wrap_value_ind (char *opaque_arg) |
8b93c638 JM |
221 | { |
222 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) opaque_arg; | |
223 | value_ptr val; | |
224 | ||
1d1358b6 MS |
225 | val = (value_ptr) (args)->args[0].pointer; |
226 | (args)->result.pointer = value_ind (val); | |
8b93c638 JM |
227 | return 1; |
228 | } | |
73a93a32 | 229 | |
c91ecb25 ND |
230 | int |
231 | gdb_parse_and_eval_type (char *p, int length, struct type **type) | |
232 | { | |
233 | struct gdb_wrapper_arguments args; | |
234 | args.args[0].pointer = p; | |
235 | args.args[1].integer = length; | |
236 | ||
237 | if (!catch_errors ((catch_errors_ftype *) wrap_parse_and_eval_type, &args, | |
238 | "", RETURN_MASK_ALL)) | |
239 | { | |
240 | /* An error occurred */ | |
241 | return 0; | |
242 | } | |
243 | ||
244 | *type = (struct type *) args.result.pointer; | |
245 | return 1; | |
246 | } | |
247 | ||
287e3058 | 248 | static int |
c91ecb25 ND |
249 | wrap_parse_and_eval_type (char *a) |
250 | { | |
251 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a; | |
252 | ||
253 | char *p = (char *) args->args[0].pointer; | |
254 | int length = args->args[1].integer; | |
255 | ||
256 | args->result.pointer = (char *) parse_and_eval_type (p, length); | |
257 | ||
258 | return 1; | |
259 | } |