/* GDB-specific functions for operating on agent expressions
- Copyright 1998 Free Software Foundation, Inc.
+ Copyright (C) 1998-2017 Free Software Foundation, Inc.
This file is part of GDB.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef AX_GDB_H
#define AX_GDB_H
-\f
+
+#include "ax.h" /* For agent_expr_up. */
+
+struct expression;
+union exp_element;
/* Types and enums */
/* The type of the subexpression. Even if lvalue == axs_lvalue_memory,
this is the type of the value itself; the value on the stack is a
- "pointer to" an object of this type. */
+ "pointer to" an object of this type. */
struct type *type;
+ /* If nonzero, this is a variable which does not actually exist in
+ the program. */
+ char optimized_out;
+
union
{
/* if kind == axs_lvalue_register, this is the register number */
/* Translating GDB expressions into agent expressions. */
-/* Given a GDB expression EXPR, translate it into the agent bytecode,
- and return it. FLAGS are from enum expr_to_agent_flags. */
-extern struct agent_expr *expr_to_agent PARAMS ((struct expression * EXPR,
- struct axs_value * VALUE));
-
-/* Given a GDB expression EXPR denoting an lvalue in memory, produce a
- string of agent bytecode which will leave its address and size on
- the top of stack. Return the agent expression. */
-extern struct agent_expr *expr_to_address_and_size
- PARAMS ((struct expression * EXPR));
-
/* Given a GDB expression EXPR, return bytecode to trace its value.
The result will use the `trace' and `trace_quick' bytecodes to
record the value of all memory touched by the expression, and leave
no values on the stack. The caller can then use the ax_reqs
function to discover which registers the expression uses. */
-extern struct agent_expr *gen_trace_for_expr PARAMS ((CORE_ADDR,
- struct expression *));
+extern agent_expr_up gen_trace_for_expr (CORE_ADDR, struct expression *,
+ int);
+
+extern agent_expr_up gen_trace_for_var (CORE_ADDR, struct gdbarch *,
+ struct symbol *, int);
+
+extern agent_expr_up gen_trace_for_return_address (CORE_ADDR,
+ struct gdbarch *,
+ int);
+
+extern agent_expr_up gen_eval_for_expr (CORE_ADDR, struct expression *);
+
+extern void gen_expr (struct expression *exp, union exp_element **pc,
+ struct agent_expr *ax, struct axs_value *value);
+
+extern void require_rvalue (struct agent_expr *ax, struct axs_value *value);
+
+extern agent_expr_up gen_printf (CORE_ADDR, struct gdbarch *,
+ CORE_ADDR, LONGEST, const char *, int,
+ int, struct expression **);
#endif /* AX_GDB_H */