gcc/java/verify.h

   1 /* Declarations to interface gcj with bytecode verifier.
   2    Copyright (C) 2003, 2004, 2005, 2006, 2007 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 3, 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 COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.
  19
  20 Java and all Java-based marks are trademarks or registered trademarks
  21 of Sun Microsystems, Inc. in the United States and other countries.
  22 The Free Software Foundation is independent of Sun Microsystems, Inc.  */
  23
  24 /* Written by Tom Tromey <tromey@redhat.com>.  */
  25
  26 #ifndef GCC_VERIFY_H
  27 #define GCC_VERIFY_H
  28
  29 #ifdef __cplusplus
  30 extern "C"
  31 {
  32 #endif
  33
  34 #include "system.h"
  35 #include "coretypes.h"
  36 #include "jcf.h"
  37 #include "tree.h"
  38 #include "java-tree.h"
  39
  40 typedef JCF vfy_constants;
  41
  42 /* For our purposes a string is the same as an identifier.  */
  43 typedef tree vfy_string;
  44
  45 /* The TYPE_DECL for a class or primitive type.  */
  46 typedef tree vfy_jclass;
  47
  48 /* An unsigned jshort.  */
  49 typedef uint16 vfy_uint_16;
  50
  51 typedef struct
  52 {
  53   int handler, start, end, type;
  54 } vfy_exception;
  55
  56 typedef struct
  57 {
  58   tree method;
  59   vfy_string signature;
  60   vfy_string name;
  61   const unsigned char *bytes;
  62   vfy_exception *exceptions;
  63
  64   /* These fields are referred to directly by the verifier.  */
  65   vfy_jclass defining_class;
  66   int max_stack;
  67   int max_locals;
  68   int code_length;
  69   int exc_count;
  70 } vfy_method;
  71
  72 /* Entry point to the verifier.  */
  73 int verify_jvm_instructions_new (JCF *jcf, const unsigned char *byte_ops,
  74                                  long length);
  75
  76 void *vfy_alloc (size_t bytes);
  77 void vfy_free (void *mem);
  78 bool vfy_strings_equal (vfy_string one, vfy_string two);
  79 const char *vfy_string_bytes (vfy_string str);
  80 int vfy_string_length (vfy_string str);
  81 vfy_string vfy_get_string (const char *chars, int length);
  82 vfy_string vfy_init_name (void);
  83 vfy_string vfy_clinit_name (void);
  84 int vfy_count_arguments (vfy_string signature);
  85 vfy_string vfy_get_signature (vfy_method *method);
  86 vfy_string vfy_get_method_name (vfy_method *method);
  87 bool vfy_is_static (vfy_method *method);
  88 const unsigned char *vfy_get_bytecode (vfy_method *method);
  89 vfy_exception *vfy_get_exceptions (vfy_method *method);
  90 void vfy_get_exception (vfy_exception *, int index, int *handler,
  91                         int *start, int *end, int *handler_type);
  92 int vfy_tag (vfy_constants *pool, int index);
  93 void vfy_load_indexes (vfy_constants *pool, int index,
  94                        vfy_uint_16 *index0, vfy_uint_16 *index1);
  95 vfy_constants *vfy_get_constants (vfy_jclass klass);
  96 int vfy_get_constants_size (vfy_jclass klass);
  97 vfy_string vfy_get_pool_string (vfy_constants *pool, int index);
  98 vfy_jclass vfy_get_pool_class (vfy_constants *pool, int index);
  99 vfy_string vfy_get_class_name (vfy_jclass klass);
 100 bool vfy_is_assignable_from (vfy_jclass target, vfy_jclass source);
 101 char vfy_get_primitive_char (vfy_jclass klass);
 102 int vfy_get_interface_count (vfy_jclass klass);
 103 vfy_jclass vfy_get_interface (vfy_jclass klass, int index);
 104 bool vfy_is_array (vfy_jclass klass);
 105 bool vfy_is_interface (vfy_jclass klass);
 106 bool vfy_is_primitive (vfy_jclass klass);
 107 vfy_jclass vfy_get_superclass (vfy_jclass klass);
 108 vfy_jclass vfy_get_array_class (vfy_jclass klass);
 109 vfy_jclass vfy_get_component_type (vfy_jclass klass);
 110 bool vfy_is_abstract (vfy_jclass klass);
 111 vfy_jclass vfy_find_class (vfy_jclass klass, vfy_string name);
 112 vfy_jclass vfy_object_type (void);
 113 vfy_jclass vfy_class_type (void);
 114 vfy_jclass vfy_string_type (void);
 115 vfy_jclass vfy_throwable_type (void);
 116 vfy_jclass vfy_unsuitable_type (void);
 117 vfy_jclass vfy_return_address_type (void);
 118 vfy_jclass vfy_null_type (void);
 119 int vfy_fail (const char *message, int pc, vfy_jclass ignore1,
 120               vfy_method *method);
 121 vfy_jclass vfy_get_primitive_type (int type);
 122 void vfy_note_stack_depth (vfy_method *method, int pc, int depth);
 123 void vfy_note_stack_type (vfy_method *method, int pc, int slot,
 124                           vfy_jclass type);
 125 void vfy_note_local_type (vfy_method *method, int pc, int slot,
 126                           vfy_jclass type);
 127 void vfy_note_instruction_seen (int pc);
 128 bool vfy_class_has_field (vfy_jclass klass, vfy_string name,
 129                           vfy_string signature);
 130
 131 #define GLOM(name, stuff) name ## stuff
 132 #define VFY_PRIMITIVE_CLASS(name) \
 133   vfy_get_primitive_type ((int) (GLOM (name, _type)))
 134
 135 typedef enum
 136 {
 137 #define JAVAOP(name, num, ignore1, ignore2, ignore3) \
 138   GLOM (op_, name) = num,
 139 #include "javaop.def"
 140   java_opcode_end
 141 } java_opcode;
 142
 143
 144 #define JV_CONSTANT_Class CONSTANT_Class
 145 #define JV_CONSTANT_ResolvedClass CONSTANT_ResolvedClass
 146 #define JV_CONSTANT_String CONSTANT_String
 147 #define JV_CONSTANT_ResolvedString CONSTANT_ResolvedString
 148 #define JV_CONSTANT_Integer CONSTANT_Integer
 149 #define JV_CONSTANT_Float CONSTANT_Float
 150 #define JV_CONSTANT_Long CONSTANT_Long
 151 #define JV_CONSTANT_Double CONSTANT_Double
 152 #define JV_CONSTANT_Fieldref CONSTANT_Fieldref
 153 #define JV_CONSTANT_InterfaceMethodref CONSTANT_InterfaceMethodref
 154 #define JV_CONSTANT_Methodref CONSTANT_Methodref
 155
 156 int verify_method (vfy_method *meth);
 157
 158 #ifdef __cplusplus
 159 }
 160 #endif
 161
 162 #endif /* ! GCC_VERIFY_H */