diff options
Diffstat (limited to 'src/share/vm/oops/constMethod.hpp')
| -rw-r--r-- | src/share/vm/oops/constMethod.hpp | 51 |
1 files changed, 40 insertions, 11 deletions
diff --git a/src/share/vm/oops/constMethod.hpp b/src/share/vm/oops/constMethod.hpp index 9712eee57..771bf7b16 100644 --- a/src/share/vm/oops/constMethod.hpp +++ b/src/share/vm/oops/constMethod.hpp @@ -45,7 +45,7 @@ // | constMethod_size | // | interp_kind | flags | code_size | // | name index | signature index | -// | method_idnum | generic_signature_index | +// | method_idnum | max_stack | // |------------------------------------------------------| // | | // | byte codes | @@ -55,26 +55,29 @@ // | (see class CompressedLineNumberReadStream) | // | (note that length is unknown until decompressed) | // | (access flags bit tells whether table is present) | -// | (indexed from start of ConstMethod*) | +// | (indexed from start of ConstMethod*) | // | (elements not necessarily sorted!) | // |------------------------------------------------------| // | localvariable table elements + length (length last) | // | (length is u2, elements are 6-tuples of u2) | // | (see class LocalVariableTableElement) | // | (access flags bit tells whether table is present) | -// | (indexed from end of ConstMethod*) | +// | (indexed from end of ConstMethod*) | // |------------------------------------------------------| // | exception table + length (length last) | // | (length is u2, elements are 4-tuples of u2) | // | (see class ExceptionTableElement) | // | (access flags bit tells whether table is present) | -// | (indexed from end of ConstMethod*) | +// | (indexed from end of ConstMethod*) | // |------------------------------------------------------| // | checked exceptions elements + length (length last) | // | (length is u2, elements are u2) | // | (see class CheckedExceptionElement) | // | (access flags bit tells whether table is present) | -// | (indexed from end of ConstMethod*) | +// | (indexed from end of ConstMethod*) | +// |------------------------------------------------------| +// | generic signature index (u2) | +// | (indexed from start of constMethodOop) | // |------------------------------------------------------| @@ -118,7 +121,8 @@ private: _has_checked_exceptions = 2, _has_localvariable_table = 4, _has_exception_table = 8, - _is_overpass = 16 + _has_generic_signature = 16, + _is_overpass = 32 }; // Bit vector of signature @@ -145,7 +149,7 @@ private: u2 _method_idnum; // unique identification number for the method within the class // initially corresponds to the index into the methods array. // but this may change with redefinition - u2 _generic_signature_index; // Generic signature (index in constant pool, 0 if absent) + u2 _max_stack; // Maximum number of entries on the expression stack // Constructor @@ -154,6 +158,7 @@ private: int localvariable_table_length, int exception_table_length, int checked_exceptions_length, + u2 generic_signature_index, MethodType is_overpass, int size); public: @@ -164,17 +169,22 @@ public: int localvariable_table_length, int exception_table_length, int checked_exceptions_length, + u2 generic_signature_index, MethodType mt, TRAPS); bool is_constMethod() const { return true; } // Inlined tables - void set_inlined_tables_length(int checked_exceptions_len, + void set_inlined_tables_length(u2 generic_signature_index, + int checked_exceptions_len, int compressed_line_number_size, int localvariable_table_len, int exception_table_len); + bool has_generic_signature() const + { return (_flags & _has_generic_signature) != 0; } + bool has_linenumber_table() const { return (_flags & _has_linenumber_table) != 0; } @@ -252,8 +262,18 @@ public: void set_signature_index(int index) { _signature_index = index; } // generics support - int generic_signature_index() const { return _generic_signature_index; } - void set_generic_signature_index(int index) { _generic_signature_index = index; } + int generic_signature_index() const { + if (has_generic_signature()) { + return *generic_signature_index_addr(); + } else { + return 0; + } + } + void set_generic_signature_index(u2 index) { + assert(has_generic_signature(), ""); + u2* addr = generic_signature_index_addr(); + *addr = index; + } // Sizing static int header_size() { @@ -264,7 +284,8 @@ public: static int size(int code_size, int compressed_line_number_size, int local_variable_table_length, int exception_table_length, - int checked_exceptions_length); + int checked_exceptions_length, + u2 generic_signature_index); int size() const { return _constMethod_size;} void set_constMethod_size(int size) { _constMethod_size = size; } @@ -281,6 +302,7 @@ public: // linenumber table - note that length is unknown until decompression, // see class CompressedLineNumberReadStream. u_char* compressed_linenumber_table() const; // not preserved by gc + u2* generic_signature_index_addr() const; u2* checked_exceptions_length_addr() const; u2* localvariable_table_length_addr() const; u2* exception_table_length_addr() const; @@ -314,12 +336,19 @@ public: static ByteSize constants_offset() { return byte_offset_of(ConstMethod, _constants); } + static ByteSize max_stack_offset() + { return byte_offset_of(ConstMethod, _max_stack); } + // Unique id for the method static const u2 MAX_IDNUM; static const u2 UNSET_IDNUM; u2 method_idnum() const { return _method_idnum; } void set_method_idnum(u2 idnum) { _method_idnum = idnum; } + // max stack + int max_stack() const { return _max_stack; } + void set_max_stack(int size) { _max_stack = size; } + // Deallocation for RedefineClasses void deallocate_contents(ClassLoaderData* loader_data); bool is_klass() const { return false; } |