gcc/java/verify.h

   1 /* Declarations to interface gcj with bytecode verifier.
   2    Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  19 Boston, MA 02110-1301, USA.
  20
  21 Java and all Java-based marks are trademarks or registered trademarks
  22 of Sun Microsystems, Inc. in the United States and other countries.
  23 The Free Software Foundation is independent of Sun Microsystems, Inc.  */
  24
  25 /* Written by Tom Tromey <tromey@redhat.com>.  */
  26
  27 #ifndef GCC_VERIFY_H
  28 #define GCC_VERIFY_H
  29
  30 #ifdef __cplusplus
  31 extern "C"
  32 {
  33 #endif
  34
  35 #include "system.h"
  36 #include "coretypes.h"
  37 #include "jcf.h"
  38 #include "tree.h"
  39 #include "java-tree.h"
  40
  41 typedef JCF vfy_constants;
  42
  43 /* For our purposes a string is the same as an identifier.  */
  44 typedef tree vfy_string;
  45
  46 /* The TYPE_DECL for a class or primitive type.  */
  47 typedef tree vfy_jclass;
  48
  49 /* An unsigned jshort.  */
  50 typedef uint16 vfy_uint_16;
  51
  52 typedef struct
  53 {
  54   int handler, start, end, type;
  55 } vfy_exception;
  56
  57 typedef struct
  58 {
  59   tree method;
  60   vfy_string signature;
  61   vfy_string name;
  62   const unsigned char *bytes;
  63   vfy_exception *exceptions;
  64
  65   /* These fields are referred to directly by the verifier.  */
  66   vfy_jclass defining_class;
  67   int max_stack;
  68   int max_locals;
  69   int code_length;
  70   int exc_count;
  71 } vfy_method;
  72
  73 /* Entry point to the verifier.  */
  74 int verify_jvm_instructions_new (JCF *jcf, const unsigned char *byte_ops,
  75                                  long length);
  76
  77 void *vfy_alloc (size_t bytes);
  78 void vfy_free (void *mem);
  79 bool vfy_strings_equal (vfy_string one, vfy_string two);
  80 const char *vfy_string_bytes (vfy_string str);
  81 int vfy_string_length (vfy_string str);
  82 vfy_string vfy_get_string (const char *chars, int length);
  83 vfy_string vfy_init_name (void);
  84 vfy_string vfy_clinit_name (void);
  85 int vfy_count_arguments (vfy_string signature);
  86 vfy_string vfy_get_signature (vfy_method *method);
  87 vfy_string vfy_get_method_name (vfy_method *method);
  88 bool vfy_is_static (vfy_method *method);
  89 const unsigned char *vfy_get_bytecode (vfy_method *method);
  90 vfy_exception *vfy_get_exceptions (vfy_method *method);
  91 void vfy_get_exception (vfy_exception *, int index, int *handler,
  92                         int *start, int *end, int *handler_type);
  93 int vfy_tag (vfy_constants *pool, int index);
  94 void vfy_load_indexes (vfy_constants *pool, int index,
  95                        vfy_uint_16 *index0, vfy_uint_16 *index1);
  96 vfy_constants *vfy_get_constants (vfy_jclass klass);
  97 int vfy_get_constants_size (vfy_jclass klass);
  98 vfy_string vfy_get_pool_string (vfy_constants *pool, int index);
  99 vfy_jclass vfy_get_pool_class (vfy_constants *pool, int index);
 100 vfy_string vfy_make_string (const char *s, int len);
 101 vfy_string vfy_get_class_name (vfy_jclass klass);
 102 bool vfy_is_assignable_from (vfy_jclass target, vfy_jclass source);
 103 char vfy_get_primitive_char (vfy_jclass klass);
 104 int vfy_get_interface_count (vfy_jclass klass);
 105 vfy_jclass vfy_get_interface (vfy_jclass klass, int index);
 106 bool vfy_is_array (vfy_jclass klass);
 107 bool vfy_is_interface (vfy_jclass klass);
 108 bool vfy_is_primitive (vfy_jclass klass);
 109 vfy_jclass vfy_get_superclass (vfy_jclass klass);
 110 vfy_jclass vfy_get_array_class (vfy_jclass klass);
 111 vfy_jclass vfy_get_component_type (vfy_jclass klass);
 112 bool vfy_is_abstract (vfy_jclass klass);
 113 vfy_jclass vfy_find_class (vfy_jclass klass, vfy_string name);
 114 vfy_jclass vfy_object_type (void);
 115 vfy_jclass vfy_class_type (void);
 116 vfy_jclass vfy_string_type (void);
 117 vfy_jclass vfy_throwable_type (void);
 118 vfy_jclass vfy_unsuitable_type (void);
 119 vfy_jclass vfy_return_address_type (void);
 120 vfy_jclass vfy_null_type (void);
 121 int vfy_fail (const char *message, int pc, vfy_jclass ignore1,
 122               vfy_method *method);
 123 vfy_jclass vfy_get_primitive_type (int type);
 124 void vfy_note_stack_depth (vfy_method *method, int pc, int depth);
 125 void vfy_note_stack_type (vfy_method *method, int pc, int slot,
 126                           vfy_jclass type);
 127 void vfy_note_local_type (vfy_method *method, int pc, int slot,
 128                           vfy_jclass type);
 129 void vfy_note_instruction_seen (int pc);
 130 bool vfy_class_has_field (vfy_jclass klass, vfy_string name,
 131                           vfy_string signature);
 132
 133 #define GLOM(name, stuff) name ## stuff
 134 #define VFY_PRIMITIVE_CLASS(name) \
 135   vfy_get_primitive_type ((int) (GLOM (name, _type)))
 136
 137 typedef enum
 138 {
 139 #define JAVAOP(name, num, ignore1, ignore2, ignore3) \
 140   GLOM (op_, name) = num,
 141 #include "javaop.def"
 142   java_opcode_end
 143 } java_opcode;
 144
 145
 146 #define JV_CONSTANT_Class CONSTANT_Class
 147 #define JV_CONSTANT_ResolvedClass CONSTANT_ResolvedClass
 148 #define JV_CONSTANT_String CONSTANT_String
 149 #define JV_CONSTANT_ResolvedString CONSTANT_ResolvedString
 150 #define JV_CONSTANT_Integer CONSTANT_Integer
 151 #define JV_CONSTANT_Float CONSTANT_Float
 152 #define JV_CONSTANT_Long CONSTANT_Long
 153 #define JV_CONSTANT_Double CONSTANT_Double
 154 #define JV_CONSTANT_Fieldref CONSTANT_Fieldref
 155 #define JV_CONSTANT_InterfaceMethodref CONSTANT_InterfaceMethodref
 156 #define JV_CONSTANT_Methodref CONSTANT_Methodref
 157
 158 int verify_method (vfy_method *meth);
 159
 160 #ifdef __cplusplus
 161 }
 162 #endif
 163
 164 #endif /* ! GCC_VERIFY_H */