Mercurial > hg > graal-compiler
view src/share/vm/classfile/classFileParser.hpp @ 20565:9f35f614847d
8060169: Update the Crash Reporting URL in the Java crash log
Summary: Update the URL for HotSpot bug reports.
Reviewed-by: dcubed, rdurbin
author | dbuck |
---|---|
date | Fri, 31 Oct 2014 12:05:56 -0700 |
parents | f73af4455d7d |
children | 90257dfad6e3 |
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/* * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP #define SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP #include "classfile/classFileStream.hpp" #include "memory/resourceArea.hpp" #include "oops/oop.inline.hpp" #include "oops/typeArrayOop.hpp" #include "runtime/handles.inline.hpp" #include "utilities/accessFlags.hpp" #include "classfile/symbolTable.hpp" class FieldAllocationCount; class FieldLayoutInfo; // Parser for for .class files // // The bytes describing the class file structure is read from a Stream object class ClassFileParser VALUE_OBJ_CLASS_SPEC { private: bool _need_verify; bool _relax_verify; u2 _major_version; u2 _minor_version; Symbol* _class_name; ClassLoaderData* _loader_data; KlassHandle _host_klass; GrowableArray<Handle>* _cp_patches; // overrides for CP entries // precomputed flags bool _has_finalizer; bool _has_empty_finalizer; bool _has_vanilla_constructor; int _max_bootstrap_specifier_index; // detects BSS values // class attributes parsed before the instance klass is created: bool _synthetic_flag; int _sde_length; char* _sde_buffer; u2 _sourcefile_index; u2 _generic_signature_index; // Metadata created before the instance klass is created. Must be deallocated // if not transferred to the InstanceKlass upon successful class loading // in which case these pointers have been set to NULL. instanceKlassHandle _super_klass; ConstantPool* _cp; Array<u2>* _fields; Array<Method*>* _methods; Array<u2>* _inner_classes; Array<Klass*>* _local_interfaces; Array<Klass*>* _transitive_interfaces; AnnotationArray* _annotations; AnnotationArray* _type_annotations; Array<AnnotationArray*>* _fields_annotations; Array<AnnotationArray*>* _fields_type_annotations; InstanceKlass* _klass; // InstanceKlass once created. void set_class_synthetic_flag(bool x) { _synthetic_flag = x; } void set_class_sourcefile_index(u2 x) { _sourcefile_index = x; } void set_class_generic_signature_index(u2 x) { _generic_signature_index = x; } void set_class_sde_buffer(char* x, int len) { _sde_buffer = x; _sde_length = len; } void init_parsed_class_attributes(ClassLoaderData* loader_data) { _loader_data = loader_data; _synthetic_flag = false; _sourcefile_index = 0; _generic_signature_index = 0; _sde_buffer = NULL; _sde_length = 0; // initialize the other flags too: _has_finalizer = _has_empty_finalizer = _has_vanilla_constructor = false; _max_bootstrap_specifier_index = -1; clear_class_metadata(); _klass = NULL; } void apply_parsed_class_attributes(instanceKlassHandle k); // update k void apply_parsed_class_metadata(instanceKlassHandle k, int fields_count, TRAPS); void clear_class_metadata() { // metadata created before the instance klass is created. Must be // deallocated if classfile parsing returns an error. _cp = NULL; _fields = NULL; _methods = NULL; _inner_classes = NULL; _local_interfaces = NULL; _transitive_interfaces = NULL; _annotations = _type_annotations = NULL; _fields_annotations = _fields_type_annotations = NULL; } class AnnotationCollector { public: enum Location { _in_field, _in_method, _in_class }; enum ID { _unknown = 0, _method_CallerSensitive, _method_ForceInline, _method_DontInline, _method_LambdaForm_Compiled, _method_LambdaForm_Hidden, _sun_misc_Contended, _field_Stable, _annotation_LIMIT }; const Location _location; int _annotations_present; u2 _contended_group; AnnotationCollector(Location location) : _location(location), _annotations_present(0) { assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, ""); } // If this annotation name has an ID, report it (or _none). ID annotation_index(ClassLoaderData* loader_data, Symbol* name); // Set the annotation name: void set_annotation(ID id) { assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob"); _annotations_present |= nth_bit((int)id); } void remove_annotation(ID id) { assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob"); _annotations_present &= ~nth_bit((int)id); } // Report if the annotation is present. bool has_any_annotations() const { return _annotations_present != 0; } bool has_annotation(ID id) const { return (nth_bit((int)id) & _annotations_present) != 0; } void set_contended_group(u2 group) { _contended_group = group; } u2 contended_group() const { return _contended_group; } bool is_contended() const { return has_annotation(_sun_misc_Contended); } void set_stable(bool stable) { set_annotation(_field_Stable); } bool is_stable() const { return has_annotation(_field_Stable); } }; // This class also doubles as a holder for metadata cleanup. class FieldAnnotationCollector: public AnnotationCollector { ClassLoaderData* _loader_data; AnnotationArray* _field_annotations; AnnotationArray* _field_type_annotations; public: FieldAnnotationCollector(ClassLoaderData* loader_data) : AnnotationCollector(_in_field), _loader_data(loader_data), _field_annotations(NULL), _field_type_annotations(NULL) {} void apply_to(FieldInfo* f); ~FieldAnnotationCollector(); AnnotationArray* field_annotations() { return _field_annotations; } AnnotationArray* field_type_annotations() { return _field_type_annotations; } void set_field_annotations(AnnotationArray* a) { _field_annotations = a; } void set_field_type_annotations(AnnotationArray* a) { _field_type_annotations = a; } }; class MethodAnnotationCollector: public AnnotationCollector { public: MethodAnnotationCollector() : AnnotationCollector(_in_method) { } void apply_to(methodHandle m); }; class ClassAnnotationCollector: public AnnotationCollector { public: ClassAnnotationCollector() : AnnotationCollector(_in_class) { } void apply_to(instanceKlassHandle k); }; enum { fixed_buffer_size = 128 }; u_char linenumbertable_buffer[fixed_buffer_size]; ClassFileStream* _stream; // Actual input stream enum { LegalClass, LegalField, LegalMethod }; // used to verify unqualified names // Accessors ClassFileStream* stream() { return _stream; } void set_stream(ClassFileStream* st) { _stream = st; } // Constant pool parsing void parse_constant_pool_entries(int length, TRAPS); constantPoolHandle parse_constant_pool(TRAPS); // Interface parsing Array<Klass*>* parse_interfaces(int length, Handle protection_domain, Symbol* class_name, bool* has_default_methods, TRAPS); void record_defined_class_dependencies(instanceKlassHandle defined_klass, TRAPS); instanceKlassHandle parse_super_class(int super_class_index, TRAPS); // Field parsing void parse_field_attributes(u2 attributes_count, bool is_static, u2 signature_index, u2* constantvalue_index_addr, bool* is_synthetic_addr, u2* generic_signature_index_addr, FieldAnnotationCollector* parsed_annotations, TRAPS); Array<u2>* parse_fields(Symbol* class_name, bool is_interface, FieldAllocationCount *fac, u2* java_fields_count_ptr, TRAPS); void print_field_layout(Symbol* name, Array<u2>* fields, constantPoolHandle cp, int instance_size, int instance_fields_start, int instance_fields_end, int static_fields_end); // Method parsing methodHandle parse_method(bool is_interface, AccessFlags* promoted_flags, TRAPS); Array<Method*>* parse_methods(bool is_interface, AccessFlags* promoted_flags, bool* has_final_method, bool* has_default_method, TRAPS); intArray* sort_methods(Array<Method*>* methods); u2* parse_exception_table(u4 code_length, u4 exception_table_length, TRAPS); void parse_linenumber_table( u4 code_attribute_length, u4 code_length, CompressedLineNumberWriteStream** write_stream, TRAPS); u2* parse_localvariable_table(u4 code_length, u2 max_locals, u4 code_attribute_length, u2* localvariable_table_length, bool isLVTT, TRAPS); u2* parse_checked_exceptions(u2* checked_exceptions_length, u4 method_attribute_length, TRAPS); void parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index, u1* u1_array, u2* u2_array, TRAPS); u1* parse_stackmap_table(u4 code_attribute_length, TRAPS); // Classfile attribute parsing u2 parse_generic_signature_attribute(TRAPS); void parse_classfile_sourcefile_attribute(TRAPS); void parse_classfile_source_debug_extension_attribute(int length, TRAPS); u2 parse_classfile_inner_classes_attribute(u1* inner_classes_attribute_start, bool parsed_enclosingmethod_attribute, u2 enclosing_method_class_index, u2 enclosing_method_method_index, TRAPS); void parse_classfile_attributes(ClassAnnotationCollector* parsed_annotations, TRAPS); void parse_classfile_synthetic_attribute(TRAPS); void parse_classfile_signature_attribute(TRAPS); void parse_classfile_bootstrap_methods_attribute(u4 attribute_length, TRAPS); // Annotations handling AnnotationArray* assemble_annotations(u1* runtime_visible_annotations, int runtime_visible_annotations_length, u1* runtime_invisible_annotations, int runtime_invisible_annotations_length, TRAPS); int skip_annotation(u1* buffer, int limit, int index); int skip_annotation_value(u1* buffer, int limit, int index); void parse_annotations(u1* buffer, int limit, /* Results (currently, only one result is supported): */ AnnotationCollector* result, TRAPS); // Final setup unsigned int compute_oop_map_count(instanceKlassHandle super, unsigned int nonstatic_oop_count, int first_nonstatic_oop_offset); void fill_oop_maps(instanceKlassHandle k, unsigned int nonstatic_oop_map_count, int* nonstatic_oop_offsets, unsigned int* nonstatic_oop_counts); void set_precomputed_flags(instanceKlassHandle k); Array<Klass*>* compute_transitive_interfaces(instanceKlassHandle super, Array<Klass*>* local_ifs, TRAPS); // Format checker methods void classfile_parse_error(const char* msg, TRAPS); void classfile_parse_error(const char* msg, int index, TRAPS); void classfile_parse_error(const char* msg, const char *name, TRAPS); void classfile_parse_error(const char* msg, int index, const char *name, TRAPS); inline void guarantee_property(bool b, const char* msg, TRAPS) { if (!b) { classfile_parse_error(msg, CHECK); } } PRAGMA_DIAG_PUSH PRAGMA_FORMAT_NONLITERAL_IGNORED inline void assert_property(bool b, const char* msg, TRAPS) { #ifdef ASSERT if (!b) { ResourceMark rm(THREAD); fatal(err_msg(msg, _class_name->as_C_string())); } #endif } inline void assert_property(bool b, const char* msg, int index, TRAPS) { #ifdef ASSERT if (!b) { ResourceMark rm(THREAD); fatal(err_msg(msg, index, _class_name->as_C_string())); } #endif } PRAGMA_DIAG_POP inline void check_property(bool property, const char* msg, int index, TRAPS) { if (_need_verify) { guarantee_property(property, msg, index, CHECK); } else { assert_property(property, msg, index, CHECK); } } inline void check_property(bool property, const char* msg, TRAPS) { if (_need_verify) { guarantee_property(property, msg, CHECK); } else { assert_property(property, msg, CHECK); } } inline void guarantee_property(bool b, const char* msg, int index, TRAPS) { if (!b) { classfile_parse_error(msg, index, CHECK); } } inline void guarantee_property(bool b, const char* msg, const char *name, TRAPS) { if (!b) { classfile_parse_error(msg, name, CHECK); } } inline void guarantee_property(bool b, const char* msg, int index, const char *name, TRAPS) { if (!b) { classfile_parse_error(msg, index, name, CHECK); } } void throwIllegalSignature( const char* type, Symbol* name, Symbol* sig, TRAPS); bool is_supported_version(u2 major, u2 minor); bool has_illegal_visibility(jint flags); void verify_constantvalue(int constantvalue_index, int signature_index, TRAPS); void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS); void verify_legal_class_name(Symbol* name, TRAPS); void verify_legal_field_name(Symbol* name, TRAPS); void verify_legal_method_name(Symbol* name, TRAPS); void verify_legal_field_signature(Symbol* fieldname, Symbol* signature, TRAPS); int verify_legal_method_signature(Symbol* methodname, Symbol* signature, TRAPS); void verify_legal_class_modifiers(jint flags, TRAPS); void verify_legal_field_modifiers(jint flags, bool is_interface, TRAPS); void verify_legal_method_modifiers(jint flags, bool is_interface, Symbol* name, TRAPS); bool verify_unqualified_name(char* name, unsigned int length, int type); char* skip_over_field_name(char* name, bool slash_ok, unsigned int length); char* skip_over_field_signature(char* signature, bool void_ok, unsigned int length, TRAPS); bool is_anonymous() { assert(EnableInvokeDynamic || _host_klass.is_null(), ""); return _host_klass.not_null(); } bool has_cp_patch_at(int index) { assert(EnableInvokeDynamic, ""); assert(index >= 0, "oob"); return (_cp_patches != NULL && index < _cp_patches->length() && _cp_patches->adr_at(index)->not_null()); } Handle cp_patch_at(int index) { assert(has_cp_patch_at(index), "oob"); return _cp_patches->at(index); } Handle clear_cp_patch_at(int index) { Handle patch = cp_patch_at(index); _cp_patches->at_put(index, Handle()); assert(!has_cp_patch_at(index), ""); return patch; } void patch_constant_pool(constantPoolHandle cp, int index, Handle patch, TRAPS); // Wrapper for constantTag.is_klass_[or_]reference. // In older versions of the VM, Klass*s cannot sneak into early phases of // constant pool construction, but in later versions they can. // %%% Let's phase out the old is_klass_reference. bool valid_klass_reference_at(int index) { return _cp->is_within_bounds(index) && (EnableInvokeDynamic ? _cp->tag_at(index).is_klass_or_reference() : _cp->tag_at(index).is_klass_reference()); } // Checks that the cpool index is in range and is a utf8 bool valid_symbol_at(int cpool_index) { return (_cp->is_within_bounds(cpool_index) && _cp->tag_at(cpool_index).is_utf8()); } void copy_localvariable_table(ConstMethod* cm, int lvt_cnt, u2* localvariable_table_length, u2** localvariable_table_start, int lvtt_cnt, u2* localvariable_type_table_length, u2** localvariable_type_table_start, TRAPS); void copy_method_annotations(ConstMethod* cm, u1* runtime_visible_annotations, int runtime_visible_annotations_length, u1* runtime_invisible_annotations, int runtime_invisible_annotations_length, u1* runtime_visible_parameter_annotations, int runtime_visible_parameter_annotations_length, u1* runtime_invisible_parameter_annotations, int runtime_invisible_parameter_annotations_length, u1* runtime_visible_type_annotations, int runtime_visible_type_annotations_length, u1* runtime_invisible_type_annotations, int runtime_invisible_type_annotations_length, u1* annotation_default, int annotation_default_length, TRAPS); // lays out fields in class and returns the total oopmap count void layout_fields(Handle class_loader, FieldAllocationCount* fac, ClassAnnotationCollector* parsed_annotations, FieldLayoutInfo* info, TRAPS); public: // Constructor ClassFileParser(ClassFileStream* st) { set_stream(st); } ~ClassFileParser(); // Parse .class file and return new Klass*. The Klass* is not hooked up // to the system dictionary or any other structures, so a .class file can // be loaded several times if desired. // The system dictionary hookup is done by the caller. // // "parsed_name" is updated by this method, and is the name found // while parsing the stream. instanceKlassHandle parseClassFile(Symbol* name, ClassLoaderData* loader_data, Handle protection_domain, TempNewSymbol& parsed_name, bool verify, TRAPS) { KlassHandle no_host_klass; return parseClassFile(name, loader_data, protection_domain, no_host_klass, NULL, parsed_name, verify, THREAD); } instanceKlassHandle parseClassFile(Symbol* name, ClassLoaderData* loader_data, Handle protection_domain, KlassHandle host_klass, GrowableArray<Handle>* cp_patches, TempNewSymbol& parsed_name, bool verify, TRAPS); // Verifier checks static void check_super_class_access(instanceKlassHandle this_klass, TRAPS); static void check_super_interface_access(instanceKlassHandle this_klass, TRAPS); static void check_final_method_override(instanceKlassHandle this_klass, TRAPS); static void check_illegal_static_method(instanceKlassHandle this_klass, TRAPS); }; #endif // SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP