src/share/vm/classfile/classFileParser.hpp
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File 7086585 Sdiff src/share/vm/classfile

src/share/vm/classfile/classFileParser.hpp

Print this page




  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP
  26 #define SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP
  27 
  28 #include "classfile/classFileStream.hpp"
  29 #include "memory/resourceArea.hpp"
  30 #include "oops/oop.inline.hpp"
  31 #include "oops/typeArrayOop.hpp"
  32 #include "runtime/handles.inline.hpp"
  33 #include "utilities/accessFlags.hpp"
  34 
  35 class TempNewSymbol;



  36 // Parser for for .class files
  37 //
  38 // The bytes describing the class file structure is read from a Stream object
  39 
  40 class ClassFileParser VALUE_OBJ_CLASS_SPEC {
  41  private:
  42   bool _need_verify;
  43   bool _relax_verify;
  44   u2   _major_version;
  45   u2   _minor_version;
  46   Symbol* _class_name;
  47   KlassHandle _host_klass;
  48   GrowableArray<Handle>* _cp_patches; // overrides for CP entries
  49 
  50   bool _has_finalizer;
  51   bool _has_empty_finalizer;
  52   bool _has_vanilla_constructor;
  53 
  54   int _max_bootstrap_specifier_index;
  55 


  67   // Constant pool parsing
  68   void parse_constant_pool_entries(constantPoolHandle cp, int length, TRAPS);
  69 
  70   constantPoolHandle parse_constant_pool(TRAPS);
  71 
  72   // Interface parsing
  73   objArrayHandle parse_interfaces(constantPoolHandle cp,
  74                                   int length,
  75                                   Handle class_loader,
  76                                   Handle protection_domain,
  77                                   Symbol* class_name,
  78                                   TRAPS);
  79 
  80   // Field parsing
  81   void parse_field_attributes(constantPoolHandle cp, u2 attributes_count,
  82                               bool is_static, u2 signature_index,
  83                               u2* constantvalue_index_addr,
  84                               bool* is_synthetic_addr,
  85                               u2* generic_signature_index_addr,
  86                               typeArrayHandle* field_annotations, TRAPS);
  87   typeArrayHandle parse_fields(constantPoolHandle cp, bool is_interface,
  88                                struct FieldAllocationCount *fac,
  89                                objArrayHandle* fields_annotations, TRAPS);


  90 
  91   // Method parsing
  92   methodHandle parse_method(constantPoolHandle cp, bool is_interface,
  93                             AccessFlags* promoted_flags,
  94                             typeArrayHandle* method_annotations,
  95                             typeArrayHandle* method_parameter_annotations,
  96                             typeArrayHandle* method_default_annotations,
  97                             TRAPS);
  98   objArrayHandle parse_methods (constantPoolHandle cp, bool is_interface,
  99                                 AccessFlags* promoted_flags,
 100                                 bool* has_final_method,
 101                                 objArrayOop* methods_annotations_oop,
 102                                 objArrayOop* methods_parameter_annotations_oop,
 103                                 objArrayOop* methods_default_annotations_oop,
 104                                 TRAPS);
 105   typeArrayHandle sort_methods (objArrayHandle methods,
 106                                 objArrayHandle methods_annotations,
 107                                 objArrayHandle methods_parameter_annotations,
 108                                 objArrayHandle methods_default_annotations,
 109                                 TRAPS);


 133   void parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, instanceKlassHandle k, u4 attribute_length, TRAPS);
 134 
 135   // Annotations handling
 136   typeArrayHandle assemble_annotations(u1* runtime_visible_annotations,
 137                                        int runtime_visible_annotations_length,
 138                                        u1* runtime_invisible_annotations,
 139                                        int runtime_invisible_annotations_length, TRAPS);
 140 
 141   // Final setup
 142   unsigned int compute_oop_map_count(instanceKlassHandle super,
 143                                      unsigned int nonstatic_oop_count,
 144                                      int first_nonstatic_oop_offset);
 145   void fill_oop_maps(instanceKlassHandle k,
 146                      unsigned int nonstatic_oop_map_count,
 147                      int* nonstatic_oop_offsets,
 148                      unsigned int* nonstatic_oop_counts);
 149   void set_precomputed_flags(instanceKlassHandle k);
 150   objArrayHandle compute_transitive_interfaces(instanceKlassHandle super,
 151                                                objArrayHandle local_ifs, TRAPS);
 152 
 153   // Special handling for certain classes.
 154   // Add the "discovered" field to java.lang.ref.Reference if
 155   // it does not exist.
 156   void java_lang_ref_Reference_fix_pre(typeArrayHandle* fields_ptr,
 157                                        constantPoolHandle cp,
 158                                        FieldAllocationCount *fac_ptr, TRAPS);
 159   // Adjust the field allocation counts for java.lang.Class to add
 160   // fake fields.
 161   void java_lang_Class_fix_pre(int* nonstatic_field_size,
 162                                FieldAllocationCount *fac_ptr);
 163   // Adjust the next_nonstatic_oop_offset to place the fake fields
 164   // before any Java fields.
 165   void java_lang_Class_fix_post(int* next_nonstatic_oop_offset);
 166   // Adjust the field allocation counts for java.lang.invoke.MethodHandle to add
 167   // a fake address (void*) field.
 168   void java_lang_invoke_MethodHandle_fix_pre(constantPoolHandle cp,
 169                                      typeArrayHandle fields,
 170                                      FieldAllocationCount *fac_ptr, TRAPS);
 171 
 172   // Format checker methods
 173   void classfile_parse_error(const char* msg, TRAPS);
 174   void classfile_parse_error(const char* msg, int index, TRAPS);
 175   void classfile_parse_error(const char* msg, const char *name, TRAPS);
 176   void classfile_parse_error(const char* msg, int index, const char *name, TRAPS);
 177   inline void guarantee_property(bool b, const char* msg, TRAPS) {
 178     if (!b) { classfile_parse_error(msg, CHECK); }
 179   }
 180 
 181   inline void assert_property(bool b, const char* msg, TRAPS) {
 182 #ifdef ASSERT
 183     if (!b) { fatal(msg); }
 184 #endif
 185   }
 186 
 187   inline void check_property(bool property, const char* msg, int index, TRAPS) {
 188     if (_need_verify) {
 189       guarantee_property(property, msg, index, CHECK);
 190     } else {
 191       assert_property(property, msg, CHECK);




  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP
  26 #define SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP
  27 
  28 #include "classfile/classFileStream.hpp"
  29 #include "memory/resourceArea.hpp"
  30 #include "oops/oop.inline.hpp"
  31 #include "oops/typeArrayOop.hpp"
  32 #include "runtime/handles.inline.hpp"
  33 #include "utilities/accessFlags.hpp"
  34 
  35 class TempNewSymbol;
  36 class FieldAllocationCount;
  37 
  38 
  39 // Parser for for .class files
  40 //
  41 // The bytes describing the class file structure is read from a Stream object
  42 
  43 class ClassFileParser VALUE_OBJ_CLASS_SPEC {
  44  private:
  45   bool _need_verify;
  46   bool _relax_verify;
  47   u2   _major_version;
  48   u2   _minor_version;
  49   Symbol* _class_name;
  50   KlassHandle _host_klass;
  51   GrowableArray<Handle>* _cp_patches; // overrides for CP entries
  52 
  53   bool _has_finalizer;
  54   bool _has_empty_finalizer;
  55   bool _has_vanilla_constructor;
  56 
  57   int _max_bootstrap_specifier_index;
  58 


  70   // Constant pool parsing
  71   void parse_constant_pool_entries(constantPoolHandle cp, int length, TRAPS);
  72 
  73   constantPoolHandle parse_constant_pool(TRAPS);
  74 
  75   // Interface parsing
  76   objArrayHandle parse_interfaces(constantPoolHandle cp,
  77                                   int length,
  78                                   Handle class_loader,
  79                                   Handle protection_domain,
  80                                   Symbol* class_name,
  81                                   TRAPS);
  82 
  83   // Field parsing
  84   void parse_field_attributes(constantPoolHandle cp, u2 attributes_count,
  85                               bool is_static, u2 signature_index,
  86                               u2* constantvalue_index_addr,
  87                               bool* is_synthetic_addr,
  88                               u2* generic_signature_index_addr,
  89                               typeArrayHandle* field_annotations, TRAPS);
  90   typeArrayHandle parse_fields(Symbol* class_name,
  91                                constantPoolHandle cp, bool is_interface,
  92                                FieldAllocationCount *fac,
  93                                objArrayHandle* fields_annotations,
  94                                int* java_fields_count_ptr, TRAPS);
  95 
  96   // Method parsing
  97   methodHandle parse_method(constantPoolHandle cp, bool is_interface,
  98                             AccessFlags* promoted_flags,
  99                             typeArrayHandle* method_annotations,
 100                             typeArrayHandle* method_parameter_annotations,
 101                             typeArrayHandle* method_default_annotations,
 102                             TRAPS);
 103   objArrayHandle parse_methods (constantPoolHandle cp, bool is_interface,
 104                                 AccessFlags* promoted_flags,
 105                                 bool* has_final_method,
 106                                 objArrayOop* methods_annotations_oop,
 107                                 objArrayOop* methods_parameter_annotations_oop,
 108                                 objArrayOop* methods_default_annotations_oop,
 109                                 TRAPS);
 110   typeArrayHandle sort_methods (objArrayHandle methods,
 111                                 objArrayHandle methods_annotations,
 112                                 objArrayHandle methods_parameter_annotations,
 113                                 objArrayHandle methods_default_annotations,
 114                                 TRAPS);


 138   void parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, instanceKlassHandle k, u4 attribute_length, TRAPS);
 139 
 140   // Annotations handling
 141   typeArrayHandle assemble_annotations(u1* runtime_visible_annotations,
 142                                        int runtime_visible_annotations_length,
 143                                        u1* runtime_invisible_annotations,
 144                                        int runtime_invisible_annotations_length, TRAPS);
 145 
 146   // Final setup
 147   unsigned int compute_oop_map_count(instanceKlassHandle super,
 148                                      unsigned int nonstatic_oop_count,
 149                                      int first_nonstatic_oop_offset);
 150   void fill_oop_maps(instanceKlassHandle k,
 151                      unsigned int nonstatic_oop_map_count,
 152                      int* nonstatic_oop_offsets,
 153                      unsigned int* nonstatic_oop_counts);
 154   void set_precomputed_flags(instanceKlassHandle k);
 155   objArrayHandle compute_transitive_interfaces(instanceKlassHandle super,
 156                                                objArrayHandle local_ifs, TRAPS);
 157 



















 158   // Format checker methods
 159   void classfile_parse_error(const char* msg, TRAPS);
 160   void classfile_parse_error(const char* msg, int index, TRAPS);
 161   void classfile_parse_error(const char* msg, const char *name, TRAPS);
 162   void classfile_parse_error(const char* msg, int index, const char *name, TRAPS);
 163   inline void guarantee_property(bool b, const char* msg, TRAPS) {
 164     if (!b) { classfile_parse_error(msg, CHECK); }
 165   }
 166 
 167   inline void assert_property(bool b, const char* msg, TRAPS) {
 168 #ifdef ASSERT
 169     if (!b) { fatal(msg); }
 170 #endif
 171   }
 172 
 173   inline void check_property(bool property, const char* msg, int index, TRAPS) {
 174     if (_need_verify) {
 175       guarantee_property(property, msg, index, CHECK);
 176     } else {
 177       assert_property(property, msg, CHECK);


src/share/vm/classfile/classFileParser.hpp
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File