334 lines
7.9 KiB
C
334 lines
7.9 KiB
C
/* Longjump free calls to gdb internal routines.
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Copyright 1999, 2000 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "value.h"
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#include "wrapper.h"
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/* Use this struct to pass arguments to wrapper routines. We assume
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(arbitrarily) that no gdb function takes more than ten arguments. */
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struct gdb_wrapper_arguments
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{
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/* Pointer to some result from the gdb function call, if any */
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union wrapper_results
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{
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int integer;
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void *pointer;
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} result;
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/* The list of arguments. */
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union wrapper_args
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{
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int integer;
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void *pointer;
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} args[10];
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};
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struct captured_value_struct_elt_args
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{
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struct value **argp;
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struct value **args;
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char *name;
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int *static_memfuncp;
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char *err;
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struct value **result_ptr;
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};
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static int wrap_parse_exp_1 (char *);
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static int wrap_evaluate_expression (char *);
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static int wrap_value_fetch_lazy (char *);
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static int wrap_value_equal (char *);
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static int wrap_value_assign (char *);
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static int wrap_value_subscript (char *);
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static int wrap_value_ind (char *opaque_arg);
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static int do_captured_value_struct_elt (struct ui_out *uiout, void *data);
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static int wrap_parse_and_eval_type (char *);
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int
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gdb_parse_exp_1 (char **stringptr, struct block *block, int comma,
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struct expression **expression)
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{
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struct gdb_wrapper_arguments args;
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args.args[0].pointer = stringptr;
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args.args[1].pointer = block;
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args.args[2].integer = comma;
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if (!catch_errors ((catch_errors_ftype *) wrap_parse_exp_1, &args,
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"", RETURN_MASK_ERROR))
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{
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/* An error occurred */
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return 0;
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}
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*expression = (struct expression *) args.result.pointer;
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return 1;
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}
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static int
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wrap_parse_exp_1 (char *argptr)
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{
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struct gdb_wrapper_arguments *args
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= (struct gdb_wrapper_arguments *) argptr;
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args->result.pointer = parse_exp_1((char **) args->args[0].pointer,
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(struct block *) args->args[1].pointer,
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args->args[2].integer);
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return 1;
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}
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int
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gdb_evaluate_expression (struct expression *exp, struct value **value)
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{
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struct gdb_wrapper_arguments args;
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args.args[0].pointer = exp;
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if (!catch_errors ((catch_errors_ftype *) wrap_evaluate_expression, &args,
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"", RETURN_MASK_ERROR))
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{
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/* An error occurred */
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return 0;
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}
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*value = (struct value *) args.result.pointer;
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return 1;
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}
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static int
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wrap_evaluate_expression (char *a)
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{
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struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
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(args)->result.pointer =
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(char *) evaluate_expression ((struct expression *) args->args[0].pointer);
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return 1;
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}
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int
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gdb_value_fetch_lazy (struct value *value)
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{
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struct gdb_wrapper_arguments args;
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args.args[0].pointer = value;
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return catch_errors ((catch_errors_ftype *) wrap_value_fetch_lazy, &args,
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"", RETURN_MASK_ERROR);
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}
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static int
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wrap_value_fetch_lazy (char *a)
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{
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struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
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value_fetch_lazy ((struct value *) (args)->args[0].pointer);
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return 1;
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}
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int
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gdb_value_equal (struct value *val1, struct value *val2, int *result)
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{
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struct gdb_wrapper_arguments args;
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args.args[0].pointer = val1;
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args.args[1].pointer = val2;
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if (!catch_errors ((catch_errors_ftype *) wrap_value_equal, &args,
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"", RETURN_MASK_ERROR))
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{
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/* An error occurred */
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return 0;
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}
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*result = args.result.integer;
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return 1;
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}
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static int
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wrap_value_equal (char *a)
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{
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struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
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struct value *val1;
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struct value *val2;
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val1 = (struct value *) (args)->args[0].pointer;
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val2 = (struct value *) (args)->args[1].pointer;
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(args)->result.integer = value_equal (val1, val2);
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return 1;
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}
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int
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gdb_value_assign (struct value *val1, struct value *val2, struct value **result)
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{
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struct gdb_wrapper_arguments args;
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args.args[0].pointer = val1;
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args.args[1].pointer = val2;
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if (!catch_errors ((catch_errors_ftype *) wrap_value_assign, &args,
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"", RETURN_MASK_ERROR))
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{
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/* An error occurred */
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return 0;
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}
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*result = (struct value *) args.result.pointer;
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return 1;
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}
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static int
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wrap_value_assign (char *a)
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{
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struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
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struct value *val1;
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struct value *val2;
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val1 = (struct value *) (args)->args[0].pointer;
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val2 = (struct value *) (args)->args[1].pointer;
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(args)->result.pointer = value_assign (val1, val2);
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return 1;
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}
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int
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gdb_value_subscript (struct value *val1, struct value *val2, struct value **rval)
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{
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struct gdb_wrapper_arguments args;
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args.args[0].pointer = val1;
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args.args[1].pointer = val2;
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if (!catch_errors ((catch_errors_ftype *) wrap_value_subscript, &args,
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"", RETURN_MASK_ERROR))
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{
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/* An error occurred */
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return 0;
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}
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*rval = (struct value *) args.result.pointer;
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return 1;
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}
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static int
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wrap_value_subscript (char *a)
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{
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struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
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struct value *val1;
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struct value *val2;
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val1 = (struct value *) (args)->args[0].pointer;
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val2 = (struct value *) (args)->args[1].pointer;
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(args)->result.pointer = value_subscript (val1, val2);
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return 1;
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}
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int
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gdb_value_ind (struct value *val, struct value **rval)
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{
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struct gdb_wrapper_arguments args;
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args.args[0].pointer = val;
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if (!catch_errors ((catch_errors_ftype *) wrap_value_ind, &args,
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"", RETURN_MASK_ERROR))
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{
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/* An error occurred */
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return 0;
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}
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*rval = (struct value *) args.result.pointer;
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return 1;
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}
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static int
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wrap_value_ind (char *opaque_arg)
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{
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struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) opaque_arg;
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struct value *val;
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val = (struct value *) (args)->args[0].pointer;
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(args)->result.pointer = value_ind (val);
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return 1;
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}
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int
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gdb_parse_and_eval_type (char *p, int length, struct type **type)
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{
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struct gdb_wrapper_arguments args;
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args.args[0].pointer = p;
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args.args[1].integer = length;
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if (!catch_errors ((catch_errors_ftype *) wrap_parse_and_eval_type, &args,
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"", RETURN_MASK_ALL))
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{
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/* An error occurred */
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return 0;
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}
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*type = (struct type *) args.result.pointer;
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return 1;
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}
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static int
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wrap_parse_and_eval_type (char *a)
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{
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struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
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char *p = (char *) args->args[0].pointer;
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int length = args->args[1].integer;
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args->result.pointer = (char *) parse_and_eval_type (p, length);
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return 1;
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}
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enum gdb_rc
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gdb_value_struct_elt (struct ui_out *uiout, struct value **result, struct value **argp,
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struct value **args, char *name, int *static_memfuncp,
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char *err)
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{
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struct captured_value_struct_elt_args cargs;
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cargs.argp = argp;
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cargs.args = args;
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cargs.name = name;
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cargs.static_memfuncp = static_memfuncp;
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cargs.err = err;
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cargs.result_ptr = result;
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return catch_exceptions (uiout, do_captured_value_struct_elt, &cargs,
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NULL, RETURN_MASK_ALL);
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}
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static int
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do_captured_value_struct_elt (struct ui_out *uiout, void *data)
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{
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struct captured_value_struct_elt_args *cargs = data;
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*cargs->result_ptr = value_struct_elt (cargs->argp, cargs->args, cargs->name,
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cargs->static_memfuncp, cargs->err);
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return GDB_RC_OK;
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}
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