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/* Longjump free calls to gdb internal routines.
   Copyright 1999 Free Software Foundation, Inc.
 
   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 2 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, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */
 
#include "defs.h"
#include "value.h"
#include "frame.h"
#include "wrapper.h"
 
/* Use this struct to pass arguments to wrapper routines. We assume
   (arbitrarily) that no gdb function takes more than ten arguments. */
struct gdb_wrapper_arguments
  {
 
    /* Pointer to some result from the gdb function call, if any */
    union wrapper_results
      {
        int   integer;
        void *pointer;
      } result;
 
 
    /* The list of arguments. */
    union wrapper_args
      {
        int   integer;
        void *pointer;
      } args[10];
  };
 
int gdb_parse_exp_1 PARAMS ((char **, struct block *,
                             int, struct expression **));
int wrap_parse_exp_1 PARAMS ((char *));
 
int gdb_evaluate_expression PARAMS ((struct expression *, value_ptr *));
int wrap_evaluate_expression PARAMS ((char *));
 
int gdb_value_fetch_lazy PARAMS ((value_ptr));
int wrap_value_fetch_lazy PARAMS ((char *));
 
int gdb_value_equal PARAMS ((value_ptr, value_ptr, int *));
int wrap_value_equal PARAMS ((char *));
 
int gdb_value_subscript PARAMS ((value_ptr, value_ptr, value_ptr * rval));
int wrap_value_subscript PARAMS ((char *));
 
int gdb_value_ind PARAMS ((value_ptr val, value_ptr * rval));
int wrap_value_ind PARAMS ((char *opaque_arg));
 
int gdb_parse_and_eval_type (char *, int, struct type **);
int wrap_parse_and_eval_type (char *);
 
int
gdb_parse_exp_1 (stringptr, block, comma, expression)
     char **stringptr;
     struct block *block;
     int comma;
     struct expression **expression;
{
  struct gdb_wrapper_arguments args;
  args.args[0].pointer = stringptr;
  args.args[1].pointer = block;
  args.args[2].integer = comma;
 
  if (!catch_errors ((catch_errors_ftype *) wrap_parse_exp_1, &args,
                     "", RETURN_MASK_ERROR))
    {
      /* An error occurred */
      return 0;
    }
 
  *expression = (struct expression *) args.result.pointer;
  return 1;
 
}
 
int
wrap_parse_exp_1 (argptr)
     char *argptr;
{
  struct gdb_wrapper_arguments *args
    = (struct gdb_wrapper_arguments *) argptr;
  args->result.pointer = parse_exp_1((char **) args->args[0].pointer,
                                     (struct block *) args->args[1].pointer,
                                     args->args[2].integer);
  return 1;
}
 
int
gdb_evaluate_expression (exp, value)
     struct expression *exp;
     value_ptr *value;
{
  struct gdb_wrapper_arguments args;
  args.args[0].pointer = exp;
 
  if (!catch_errors ((catch_errors_ftype *) wrap_evaluate_expression, &args,
                     "", RETURN_MASK_ERROR))
    {
      /* An error occurred */
      return 0;
    }
 
  *value = (value_ptr) args.result.pointer;
  return 1;
}
 
int
wrap_evaluate_expression (a)
     char *a;
{
  struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
 
  (args)->result.pointer =
    (char *) evaluate_expression ((struct expression *) args->args[0].pointer);
  return 1;
}
 
int
gdb_value_fetch_lazy (value)
     value_ptr value;
{
  struct gdb_wrapper_arguments args;
 
  args.args[0].pointer = value;
  return catch_errors ((catch_errors_ftype *) wrap_value_fetch_lazy, &args,
                       "", RETURN_MASK_ERROR);
}
 
int
wrap_value_fetch_lazy (a)
     char *a;
{
  struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
 
  value_fetch_lazy ((value_ptr) (args)->args[0].pointer);
  return 1;
}
 
int
gdb_value_equal (val1, val2, result)
     value_ptr val1;
     value_ptr val2;
     int *result;
{
  struct gdb_wrapper_arguments args;
 
  args.args[0].pointer = val1;
  args.args[1].pointer = val2;
 
  if (!catch_errors ((catch_errors_ftype *) wrap_value_equal, &args,
                     "", RETURN_MASK_ERROR))
    {
      /* An error occurred */
      return 0;
    }
 
  *result = args.result.integer;
  return 1;
}
 
int
wrap_value_equal (a)
     char *a;
{
  struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
  value_ptr val1, val2;
 
  val1 = (value_ptr) (args)->args[0].pointer;
  val2 = (value_ptr) (args)->args[1].pointer;
 
  (args)->result.integer = value_equal (val1, val2);
  return 1;
}
 
int
gdb_value_subscript (val1, val2, rval)
     value_ptr val1;
     value_ptr val2;
     value_ptr * rval;
{
  struct gdb_wrapper_arguments args;
 
  args.args[0].pointer = val1;
  args.args[1].pointer = val2;
 
  if (!catch_errors ((catch_errors_ftype *) wrap_value_subscript, &args,
                     "", RETURN_MASK_ERROR))
    {
      /* An error occurred */
      return 0;
    }
 
  *rval = (value_ptr) args.result.pointer;
  return 1;
}
 
int
wrap_value_subscript (a)
     char *a;
{
  struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
  value_ptr val1, val2;
 
  val1 = (value_ptr) (args)->args[0].pointer;
  val2 = (value_ptr) (args)->args[1].pointer;
 
  (args)->result.pointer = value_subscript (val1, val2);
  return 1;
}
 
int
gdb_value_ind (val, rval)
     value_ptr val;
     value_ptr *rval;
{
  struct gdb_wrapper_arguments args;
 
  args.args[0].pointer = val;
 
  if (!catch_errors ((catch_errors_ftype *) wrap_value_ind, &args,
                     "", RETURN_MASK_ERROR))
    {
      /* An error occurred */
      return 0;
    }
 
  *rval = (value_ptr) args.result.pointer;
  return 1;
}
 
int
wrap_value_ind (opaque_arg)
     char *opaque_arg;
{
  struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) opaque_arg;
  value_ptr val;
 
  val = (value_ptr) (args)->args[0].pointer;
  (args)->result.pointer = value_ind (val);
  return 1;
}
 
int
gdb_parse_and_eval_type (char *p, int length, struct type **type)
{
  struct gdb_wrapper_arguments args;
  args.args[0].pointer = p;
  args.args[1].integer = length;
 
  if (!catch_errors ((catch_errors_ftype *) wrap_parse_and_eval_type, &args,
                     "", RETURN_MASK_ALL))
    {
      /* An error occurred */
      return 0;
    }
 
  *type = (struct type *) args.result.pointer;
  return 1;
}
 
int
wrap_parse_and_eval_type (char *a)
{
  struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
 
  char *p = (char *) args->args[0].pointer;
  int length = args->args[1].integer;
 
  args->result.pointer = (char *) parse_and_eval_type (p, length);
 
  return 1;
}

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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [wrapper.c] - Blame information for rev 1774

Line No.	Rev	Author	Line
1	104	markom	`/* 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 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			`union wrapper_results`
31			`{`
32			`int integer;`
33			`void *pointer;`
34			`} result;`
35
36
37			`/* The list of arguments. */`
38			`union wrapper_args`
39			`{`
40			`int integer;`
41			`void *pointer;`
42			`} args[10];`
43			`};`
44
45			`int gdb_parse_exp_1 PARAMS ((char *, struct block ,`
46			`int, struct expression **));`
47			`int wrap_parse_exp_1 PARAMS ((char *));`
48
49			`int gdb_evaluate_expression PARAMS ((struct expression , value_ptr ));`
50			`int wrap_evaluate_expression PARAMS ((char *));`
51
52			`int gdb_value_fetch_lazy PARAMS ((value_ptr));`
53			`int wrap_value_fetch_lazy PARAMS ((char *));`
54
55			`int gdb_value_equal PARAMS ((value_ptr, value_ptr, int *));`
56			`int wrap_value_equal PARAMS ((char *));`
57
58			`int gdb_value_subscript PARAMS ((value_ptr, value_ptr, value_ptr * rval));`
59			`int wrap_value_subscript PARAMS ((char *));`
60
61			`int gdb_value_ind PARAMS ((value_ptr val, value_ptr * rval));`
62			`int wrap_value_ind PARAMS ((char *opaque_arg));`
63
64			`int gdb_parse_and_eval_type (char , int, struct type *);`
65			`int wrap_parse_and_eval_type (char *);`
66
67			`int`
68			`gdb_parse_exp_1 (stringptr, block, comma, expression)`
69			`char **stringptr;`
70			`struct block *block;`
71			`int comma;`
72			`struct expression **expression;`
73			`{`
74			`struct gdb_wrapper_arguments args;`
75			`args.args[0].pointer = stringptr;`
76			`args.args[1].pointer = block;`
77			`args.args[2].integer = comma;`
78
79			`if (!catch_errors ((catch_errors_ftype *) wrap_parse_exp_1, &args,`
80			`"", RETURN_MASK_ERROR))`
81			`{`
82			`/* An error occurred */`
83			`return 0;`
84			`}`
85
86			`expression = (struct expression ) args.result.pointer;`
87			`return 1;`
88
89			`}`
90
91			`int`
92			`wrap_parse_exp_1 (argptr)`
93			`char *argptr;`
94			`{`
95			`struct gdb_wrapper_arguments *args`
96			`= (struct gdb_wrapper_arguments *) argptr;`
97			`args->result.pointer = parse_exp_1((char **) args->args[0].pointer,`
98			`(struct block *) args->args[1].pointer,`
99			`args->args[2].integer);`
100			`return 1;`
101			`}`
102
103			`int`
104			`gdb_evaluate_expression (exp, value)`
105			`struct expression *exp;`
106			`value_ptr *value;`
107			`{`
108			`struct gdb_wrapper_arguments args;`
109			`args.args[0].pointer = exp;`
110
111			`if (!catch_errors ((catch_errors_ftype *) wrap_evaluate_expression, &args,`
112			`"", RETURN_MASK_ERROR))`
113			`{`
114			`/* An error occurred */`
115			`return 0;`
116			`}`
117
118			`*value = (value_ptr) args.result.pointer;`
119			`return 1;`
120			`}`
121
122			`int`
123			`wrap_evaluate_expression (a)`
124			`char *a;`
125			`{`
126			`struct gdb_wrapper_arguments args = (struct gdb_wrapper_arguments ) a;`
127
128			`(args)->result.pointer =`
129			`(char ) evaluate_expression ((struct expression ) args->args[0].pointer);`
130			`return 1;`
131			`}`
132
133			`int`
134			`gdb_value_fetch_lazy (value)`
135			`value_ptr value;`
136			`{`
137			`struct gdb_wrapper_arguments args;`
138
139			`args.args[0].pointer = value;`
140			`return catch_errors ((catch_errors_ftype *) wrap_value_fetch_lazy, &args,`
141			`"", RETURN_MASK_ERROR);`
142			`}`
143
144			`int`
145			`wrap_value_fetch_lazy (a)`
146			`char *a;`
147			`{`
148			`struct gdb_wrapper_arguments args = (struct gdb_wrapper_arguments ) a;`
149
150			`value_fetch_lazy ((value_ptr) (args)->args[0].pointer);`
151			`return 1;`
152			`}`
153
154			`int`
155			`gdb_value_equal (val1, val2, result)`
156			`value_ptr val1;`
157			`value_ptr val2;`
158			`int *result;`
159			`{`
160			`struct gdb_wrapper_arguments args;`
161
162			`args.args[0].pointer = val1;`
163			`args.args[1].pointer = val2;`
164
165			`if (!catch_errors ((catch_errors_ftype *) wrap_value_equal, &args,`
166			`"", RETURN_MASK_ERROR))`
167			`{`
168			`/* An error occurred */`
169			`return 0;`
170			`}`
171
172			`*result = args.result.integer;`
173			`return 1;`
174			`}`
175
176			`int`
177			`wrap_value_equal (a)`
178			`char *a;`
179			`{`
180			`struct gdb_wrapper_arguments args = (struct gdb_wrapper_arguments ) a;`
181			`value_ptr val1, val2;`
182
183			`val1 = (value_ptr) (args)->args[0].pointer;`
184			`val2 = (value_ptr) (args)->args[1].pointer;`
185
186			`(args)->result.integer = value_equal (val1, val2);`
187			`return 1;`
188			`}`
189
190			`int`
191			`gdb_value_subscript (val1, val2, rval)`
192			`value_ptr val1;`
193			`value_ptr val2;`
194			`value_ptr * rval;`
195			`{`
196			`struct gdb_wrapper_arguments args;`
197
198			`args.args[0].pointer = val1;`
199			`args.args[1].pointer = val2;`
200
201			`if (!catch_errors ((catch_errors_ftype *) wrap_value_subscript, &args,`
202			`"", RETURN_MASK_ERROR))`
203			`{`
204			`/* An error occurred */`
205			`return 0;`
206			`}`
207
208			`*rval = (value_ptr) args.result.pointer;`
209			`return 1;`
210			`}`
211
212			`int`
213			`wrap_value_subscript (a)`
214			`char *a;`
215			`{`
216			`struct gdb_wrapper_arguments args = (struct gdb_wrapper_arguments ) a;`
217			`value_ptr val1, val2;`
218
219			`val1 = (value_ptr) (args)->args[0].pointer;`
220			`val2 = (value_ptr) (args)->args[1].pointer;`
221
222			`(args)->result.pointer = value_subscript (val1, val2);`
223			`return 1;`
224			`}`
225
226			`int`
227			`gdb_value_ind (val, rval)`
228			`value_ptr val;`
229			`value_ptr *rval;`
230			`{`
231			`struct gdb_wrapper_arguments args;`
232
233			`args.args[0].pointer = val;`
234
235			`if (!catch_errors ((catch_errors_ftype *) wrap_value_ind, &args,`
236			`"", RETURN_MASK_ERROR))`
237			`{`
238			`/* An error occurred */`
239			`return 0;`
240			`}`
241
242			`*rval = (value_ptr) args.result.pointer;`
243			`return 1;`
244			`}`
245
246			`int`
247			`wrap_value_ind (opaque_arg)`
248			`char *opaque_arg;`
249			`{`
250			`struct gdb_wrapper_arguments args = (struct gdb_wrapper_arguments ) opaque_arg;`
251			`value_ptr val;`
252
253			`val = (value_ptr) (args)->args[0].pointer;`
254			`(args)->result.pointer = value_ind (val);`
255			`return 1;`
256			`}`
257
258			`int`
259			`gdb_parse_and_eval_type (char p, int length, struct type *type)`
260			`{`
261			`struct gdb_wrapper_arguments args;`
262			`args.args[0].pointer = p;`
263			`args.args[1].integer = length;`
264
265			`if (!catch_errors ((catch_errors_ftype *) wrap_parse_and_eval_type, &args,`
266			`"", RETURN_MASK_ALL))`
267			`{`
268			`/* An error occurred */`
269			`return 0;`
270			`}`
271
272			`type = (struct type ) args.result.pointer;`
273			`return 1;`
274			`}`
275
276			`int`
277			`wrap_parse_and_eval_type (char *a)`
278			`{`
279			`struct gdb_wrapper_arguments args = (struct gdb_wrapper_arguments ) a;`
280
281			`char p = (char ) args->args[0].pointer;`
282			`int length = args->args[1].integer;`
283
284			`args->result.pointer = (char *) parse_and_eval_type (p, length);`
285
286			`return 1;`
287			`}`