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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 | ||
24 | /* Use this struct used to pass arguments to wrapper routines. We assume | |
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 */ | |
30 | char *result; | |
31 | ||
32 | /* The list of arguments. */ | |
33 | char *args[10]; | |
34 | }; | |
35 | ||
36 | int gdb_evaluate_expression PARAMS ((struct expression *, value_ptr *)); | |
37 | int wrap_evaluate_expression PARAMS ((char *)); | |
38 | ||
39 | int gdb_value_fetch_lazy PARAMS ((value_ptr)); | |
40 | int wrap_value_fetch_lazy PARAMS ((char *)); | |
41 | ||
42 | int gdb_value_equal PARAMS ((value_ptr, value_ptr, int *)); | |
43 | int wrap_value_equal PARAMS ((char *)); | |
44 | ||
45 | int gdb_value_ind PARAMS ((value_ptr val, value_ptr * rval)); | |
46 | int wrap_value_ind PARAMS ((char *opaque_arg)); | |
47 | ||
48 | int | |
49 | gdb_evaluate_expression (exp, value) | |
50 | struct expression *exp; | |
51 | value_ptr *value; | |
52 | { | |
53 | struct gdb_wrapper_arguments args; | |
54 | args.args[0] = (char *) exp; | |
55 | ||
56 | if (!catch_errors ((catch_errors_ftype *) wrap_evaluate_expression, &args, | |
57 | "", RETURN_MASK_ERROR)) | |
58 | { | |
59 | /* An error occurred */ | |
60 | return 0; | |
61 | } | |
62 | ||
63 | *value = (value_ptr) args.result; | |
64 | return 1; | |
65 | } | |
66 | ||
67 | int | |
68 | wrap_evaluate_expression (a) | |
69 | char *a; | |
70 | { | |
71 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a; | |
72 | ||
73 | (args)->result = | |
74 | (char *) evaluate_expression ((struct expression *) (args)->args[0]); | |
75 | return 1; | |
76 | } | |
77 | ||
78 | int | |
79 | gdb_value_fetch_lazy (value) | |
80 | value_ptr value; | |
81 | { | |
82 | struct gdb_wrapper_arguments args; | |
83 | ||
84 | args.args[0] = (char *) value; | |
85 | return catch_errors ((catch_errors_ftype *) wrap_value_fetch_lazy, &args, | |
86 | "", RETURN_MASK_ERROR); | |
87 | } | |
88 | ||
89 | int | |
90 | wrap_value_fetch_lazy (a) | |
91 | char *a; | |
92 | { | |
93 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a; | |
94 | ||
95 | value_fetch_lazy ((value_ptr) (args)->args[0]); | |
96 | return 1; | |
97 | } | |
98 | ||
99 | int | |
100 | gdb_value_equal (val1, val2, result) | |
101 | value_ptr val1; | |
102 | value_ptr val2; | |
103 | int *result; | |
104 | { | |
105 | struct gdb_wrapper_arguments args; | |
106 | ||
107 | args.args[0] = (char *) val1; | |
108 | args.args[1] = (char *) val2; | |
109 | ||
110 | if (!catch_errors ((catch_errors_ftype *) wrap_value_equal, &args, | |
111 | "", RETURN_MASK_ERROR)) | |
112 | { | |
113 | /* An error occurred */ | |
114 | return 0; | |
115 | } | |
116 | ||
117 | *result = (int) args.result; | |
118 | return 1; | |
119 | } | |
120 | ||
121 | int | |
122 | wrap_value_equal (a) | |
123 | char *a; | |
124 | { | |
125 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a; | |
126 | value_ptr val1, val2; | |
127 | ||
128 | val1 = (value_ptr) (args)->args[0]; | |
129 | val2 = (value_ptr) (args)->args[1]; | |
130 | ||
131 | (args)->result = (char *) value_equal (val1, val2); | |
132 | return 1; | |
133 | } | |
134 | ||
135 | int | |
136 | gdb_value_ind (val, rval) | |
137 | value_ptr val; | |
138 | value_ptr *rval; | |
139 | { | |
140 | struct gdb_wrapper_arguments args; | |
141 | ||
142 | args.args[0] = (char *) val; | |
143 | ||
144 | if (!catch_errors ((catch_errors_ftype *) wrap_value_ind, &args, | |
145 | "", RETURN_MASK_ERROR)) | |
146 | { | |
147 | /* An error occurred */ | |
148 | return 0; | |
149 | } | |
150 | ||
151 | *rval = (value_ptr) args.result; | |
152 | return 1; | |
153 | } | |
154 | ||
155 | int | |
156 | wrap_value_ind (opaque_arg) | |
157 | char *opaque_arg; | |
158 | { | |
159 | struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) opaque_arg; | |
160 | value_ptr val; | |
161 | ||
162 | val = (value_ptr) (args)->args[0]; | |
163 | (args)->result = (char *) value_ind (val); | |
164 | return 1; | |
165 | } |