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-rw-r--r--contrib/gdb/gdb/wrapper.c333
1 files changed, 333 insertions, 0 deletions
diff --git a/contrib/gdb/gdb/wrapper.c b/contrib/gdb/gdb/wrapper.c
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+++ b/contrib/gdb/gdb/wrapper.c
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+/* Longjump free calls to gdb internal routines.
+ Copyright 1999, 2000 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 "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];
+ };
+
+struct captured_value_struct_elt_args
+{
+ struct value **argp;
+ struct value **args;
+ char *name;
+ int *static_memfuncp;
+ char *err;
+ struct value **result_ptr;
+};
+
+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_assign (char *);
+
+static int wrap_value_subscript (char *);
+
+static int wrap_value_ind (char *opaque_arg);
+
+static int do_captured_value_struct_elt (struct ui_out *uiout, void *data);
+
+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, struct value **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 = (struct value *) 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 (struct value *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 ((struct value *) (args)->args[0].pointer);
+ return 1;
+}
+
+int
+gdb_value_equal (struct value *val1, struct value *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;
+ struct value *val1;
+ struct value *val2;
+
+ val1 = (struct value *) (args)->args[0].pointer;
+ val2 = (struct value *) (args)->args[1].pointer;
+
+ (args)->result.integer = value_equal (val1, val2);
+ return 1;
+}
+
+int
+gdb_value_assign (struct value *val1, struct value *val2, struct value **result)
+{
+ struct gdb_wrapper_arguments args;
+
+ args.args[0].pointer = val1;
+ args.args[1].pointer = val2;
+
+ if (!catch_errors ((catch_errors_ftype *) wrap_value_assign, &args,
+ "", RETURN_MASK_ERROR))
+ {
+ /* An error occurred */
+ return 0;
+ }
+
+ *result = (struct value *) args.result.pointer;
+ return 1;
+}
+
+static int
+wrap_value_assign (char *a)
+{
+ struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
+ struct value *val1;
+ struct value *val2;
+
+ val1 = (struct value *) (args)->args[0].pointer;
+ val2 = (struct value *) (args)->args[1].pointer;
+
+ (args)->result.pointer = value_assign (val1, val2);
+ return 1;
+}
+
+int
+gdb_value_subscript (struct value *val1, struct value *val2, struct value **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 = (struct value *) args.result.pointer;
+ return 1;
+}
+
+static int
+wrap_value_subscript (char *a)
+{
+ struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) a;
+ struct value *val1;
+ struct value *val2;
+
+ val1 = (struct value *) (args)->args[0].pointer;
+ val2 = (struct value *) (args)->args[1].pointer;
+
+ (args)->result.pointer = value_subscript (val1, val2);
+ return 1;
+}
+
+int
+gdb_value_ind (struct value *val, struct value **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 = (struct value *) args.result.pointer;
+ return 1;
+}
+
+static int
+wrap_value_ind (char *opaque_arg)
+{
+ struct gdb_wrapper_arguments *args = (struct gdb_wrapper_arguments *) opaque_arg;
+ struct value *val;
+
+ val = (struct value *) (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;
+}
+
+enum gdb_rc
+gdb_value_struct_elt (struct ui_out *uiout, struct value **result, struct value **argp,
+ struct value **args, char *name, int *static_memfuncp,
+ char *err)
+{
+ struct captured_value_struct_elt_args cargs;
+ cargs.argp = argp;
+ cargs.args = args;
+ cargs.name = name;
+ cargs.static_memfuncp = static_memfuncp;
+ cargs.err = err;
+ cargs.result_ptr = result;
+ return catch_exceptions (uiout, do_captured_value_struct_elt, &cargs,
+ NULL, RETURN_MASK_ALL);
+}
+
+static int
+do_captured_value_struct_elt (struct ui_out *uiout, void *data)
+{
+ struct captured_value_struct_elt_args *cargs = data;
+ *cargs->result_ptr = value_struct_elt (cargs->argp, cargs->args, cargs->name,
+ cargs->static_memfuncp, cargs->err);
+ return GDB_RC_OK;
+}
+
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