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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];
};
static int wrap_parse_exp_1 (char *);
static int wrap_evaluate_expression (char *);
static int wrap_value_fetch_lazy (char *);
static int wrap_value_equal (char *);
static int wrap_value_subscript (char *);
static int wrap_value_ind (char *opaque_arg);
static int wrap_parse_and_eval_type (char *);
int
gdb_parse_exp_1 (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;
}
static int
wrap_parse_exp_1 (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 (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;
}
static int
wrap_evaluate_expression (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_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);
}
static int
wrap_value_fetch_lazy (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 (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;
}
static int
wrap_value_equal (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 (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;
}
static int
wrap_value_subscript (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 (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;
}
static int
wrap_value_ind (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;
}
static 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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