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/* Declarations to interface gcj with bytecode verifier.

   Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009

   Free Software Foundation, Inc.

This file is part of GCC.

GCC 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 3, or (at your option)

any later version.

GCC 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 GCC; see the file COPYING3.  If not see

<http://www.gnu.org/licenses/>.

Java and all Java-based marks are trademarks or registered trademarks

of Sun Microsystems, Inc. in the United States and other countries.

The Free Software Foundation is independent of Sun Microsystems, Inc.  */

/* Written by Tom Tromey <tromey@redhat.com>.  */

#ifndef GCC_VERIFY_H

#define GCC_VERIFY_H

#include "system.h"

#include "coretypes.h"

#include "jcf.h"

#include "tree.h"

#include "java-tree.h"

typedef JCF vfy_constants;

/* For our purposes a string is the same as an identifier.  */

typedef tree vfy_string;

/* The TYPE_DECL for a class or primitive type.  */

typedef tree vfy_jclass;

/* An unsigned jshort.  */

typedef uint16 vfy_uint_16;

typedef struct

{

  int handler, start, end, type;

} vfy_exception;

typedef struct

{

  tree method;

  vfy_string signature;

  vfy_string name;

  const unsigned char *bytes;

  vfy_exception *exceptions;

  /* These fields are referred to directly by the verifier.  */

  vfy_jclass defining_class;

  int max_stack;

  int max_locals;

  int code_length;

  int exc_count;

} vfy_method;

/* Entry point to the verifier.  */

int verify_jvm_instructions_new (JCF *jcf, const unsigned char *byte_ops,

                                 long length);

void *vfy_alloc (size_t bytes);

void vfy_free (void *mem);

bool vfy_strings_equal (vfy_string one, vfy_string two);

const char *vfy_string_bytes (vfy_string str);

int vfy_string_length (vfy_string str);

vfy_string vfy_get_string (const char *chars, int length);

vfy_string vfy_init_name (void);

vfy_string vfy_clinit_name (void);

int vfy_count_arguments (vfy_string signature);

vfy_string vfy_get_signature (vfy_method *method);

vfy_string vfy_get_method_name (vfy_method *method);

bool vfy_is_static (vfy_method *method);

const unsigned char *vfy_get_bytecode (vfy_method *method);

vfy_exception *vfy_get_exceptions (vfy_method *method);

void vfy_get_exception (vfy_exception *, int index, int *handler,

                        int *start, int *end, int *handler_type);

int vfy_tag (vfy_constants *pool, int index);

void vfy_load_indexes (vfy_constants *pool, int index,

                       vfy_uint_16 *index0, vfy_uint_16 *index1);

vfy_constants *vfy_get_constants (vfy_jclass klass);

int vfy_get_constants_size (vfy_jclass klass);

vfy_string vfy_get_pool_string (vfy_constants *pool, int index);

vfy_jclass vfy_get_pool_class (vfy_constants *pool, int index);

vfy_string vfy_get_class_name (vfy_jclass klass);

bool vfy_is_assignable_from (vfy_jclass target, vfy_jclass source);

char vfy_get_primitive_char (vfy_jclass klass);

int vfy_get_interface_count (vfy_jclass klass);

vfy_jclass vfy_get_interface (vfy_jclass klass, int index);

bool vfy_is_array (vfy_jclass klass);

bool vfy_is_interface (vfy_jclass klass);

bool vfy_is_primitive (vfy_jclass klass);

vfy_jclass vfy_get_superclass (vfy_jclass klass);

vfy_jclass vfy_get_array_class (vfy_jclass klass);

vfy_jclass vfy_get_component_type (vfy_jclass klass);

bool vfy_is_abstract (vfy_jclass klass);

vfy_jclass vfy_find_class (vfy_jclass klass, vfy_string name);

vfy_jclass vfy_object_type (void);

vfy_jclass vfy_class_type (void);

vfy_jclass vfy_string_type (void);

vfy_jclass vfy_throwable_type (void);

vfy_jclass vfy_unsuitable_type (void);

vfy_jclass vfy_return_address_type (void);

vfy_jclass vfy_null_type (void);

int vfy_fail (const char *message, int pc, vfy_jclass ignore1,

              vfy_method *method);

vfy_jclass vfy_get_primitive_type (int type);

void vfy_note_stack_depth (vfy_method *method, int pc, int depth);

void vfy_note_stack_type (vfy_method *method, int pc, int slot,

                          vfy_jclass type);

void vfy_note_local_type (vfy_method *method, int pc, int slot,

                          vfy_jclass type);

void vfy_note_instruction_seen (int pc);

bool vfy_class_has_field (vfy_jclass klass, vfy_string name,

                          vfy_string signature);

#define GLOM(name, stuff) name ## stuff

#define VFY_PRIMITIVE_CLASS(name) \

  vfy_get_primitive_type ((int) (GLOM (name, _type)))

typedef enum

{

#define JAVAOP(name, num, ignore1, ignore2, ignore3) \

  GLOM (op_, name) = num,

#include "javaop.def"

  java_opcode_end

} java_opcode;

#define JV_CONSTANT_Class CONSTANT_Class

#define JV_CONSTANT_ResolvedClass CONSTANT_ResolvedClass

#define JV_CONSTANT_String CONSTANT_String

#define JV_CONSTANT_ResolvedString CONSTANT_ResolvedString

#define JV_CONSTANT_Integer CONSTANT_Integer

#define JV_CONSTANT_Float CONSTANT_Float

#define JV_CONSTANT_Long CONSTANT_Long

#define JV_CONSTANT_Double CONSTANT_Double

#define JV_CONSTANT_Fieldref CONSTANT_Fieldref

#define JV_CONSTANT_InterfaceMethodref CONSTANT_InterfaceMethodref

#define JV_CONSTANT_Methodref CONSTANT_Methodref

int verify_method (vfy_method *meth);

#endif /* ! GCC_VERIFY_H */