diff options
Diffstat (limited to 'src/share/vm/oops/constMethodOop.hpp')
| -rw-r--r-- | src/share/vm/oops/constMethodOop.hpp | 48 |
1 files changed, 30 insertions, 18 deletions
diff --git a/src/share/vm/oops/constMethodOop.hpp b/src/share/vm/oops/constMethodOop.hpp index 10344ec6d..549192be7 100644 --- a/src/share/vm/oops/constMethodOop.hpp +++ b/src/share/vm/oops/constMethodOop.hpp @@ -43,7 +43,6 @@ // | fingerprint 2 | // | constants (oop) | // | stackmap_data (oop) | -// | exception_table (oop) | // | constMethod_size | // | interp_kind | flags | code_size | // | name index | signature index | @@ -64,7 +63,13 @@ // | (length is u2, elements are 6-tuples of u2) | // | (see class LocalVariableTableElement) | // | (access flags bit tells whether table is present) | -// | (indexed from end of contMethodOop) | +// | (indexed from end of constMethodOop) | +// |------------------------------------------------------| +// | 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 constMethodOop) | // |------------------------------------------------------| // | checked exceptions elements + length (length last) | // | (length is u2, elements are u2) | @@ -93,6 +98,15 @@ class LocalVariableTableElement VALUE_OBJ_CLASS_SPEC { }; +// Utitily class describing elements in exception table +class ExceptionTableElement VALUE_OBJ_CLASS_SPEC { + public: + u2 start_pc; + u2 end_pc; + u2 handler_pc; + u2 catch_type_index; +}; + class constMethodOopDesc : public oopDesc { friend class constMethodKlass; friend class VMStructs; @@ -100,7 +114,8 @@ private: enum { _has_linenumber_table = 1, _has_checked_exceptions = 2, - _has_localvariable_table = 4 + _has_localvariable_table = 4, + _has_exception_table = 8 }; // Bit vector of signature @@ -114,7 +129,7 @@ private: public: oop* oop_block_beg() const { return adr_constants(); } - oop* oop_block_end() const { return adr_exception_table() + 1; } + oop* oop_block_end() const { return adr_stackmap_data() + 1; } private: // @@ -126,11 +141,6 @@ private: // Raw stackmap data for the method typeArrayOop _stackmap_data; - // The exception handler table. 4-tuples of ints [start_pc, end_pc, - // handler_pc, catch_type index] For methods with no exceptions the - // table is pointing to Universe::the_empty_int_array - typeArrayOop _exception_table; - // // End of the oop block. // @@ -152,7 +162,8 @@ public: // Inlined tables void set_inlined_tables_length(int checked_exceptions_len, int compressed_line_number_size, - int localvariable_table_len); + int localvariable_table_len, + int exception_table_len); bool has_linenumber_table() const { return (_flags & _has_linenumber_table) != 0; } @@ -163,6 +174,9 @@ public: bool has_localvariable_table() const { return (_flags & _has_localvariable_table) != 0; } + bool has_exception_handler() const + { return (_flags & _has_exception_table) != 0; } + void set_interpreter_kind(int kind) { _interpreter_kind = kind; } int interpreter_kind(void) const { return _interpreter_kind; } @@ -181,11 +195,6 @@ public: } bool has_stackmap_table() const { return _stackmap_data != NULL; } - // exception handler table - typeArrayOop exception_table() const { return _exception_table; } - void set_exception_table(typeArrayOop e) { oop_store_without_check((oop*) &_exception_table, (oop) e); } - bool has_exception_handler() const { return exception_table() != NULL && exception_table()->length() > 0; } - void init_fingerprint() { const uint64_t initval = CONST64(0x8000000000000000); _fingerprint = initval; @@ -235,6 +244,7 @@ public: // Object size needed static int object_size(int code_size, int compressed_line_number_size, int local_variable_table_length, + int exception_table_length, int checked_exceptions_length); int object_size() const { return _constMethod_size; } @@ -256,6 +266,7 @@ public: u_char* compressed_linenumber_table() const; // not preserved by gc u2* checked_exceptions_length_addr() const; u2* localvariable_table_length_addr() const; + u2* exception_table_length_addr() const; // checked exceptions int checked_exceptions_length() const; @@ -265,6 +276,10 @@ public: int localvariable_table_length() const; LocalVariableTableElement* localvariable_table_start() const; + // exception table + int exception_table_length() const; + ExceptionTableElement* exception_table_start() const; + // byte codes void set_code(address code) { if (code_size() > 0) { @@ -282,13 +297,10 @@ public: // interpreter support static ByteSize constants_offset() { return byte_offset_of(constMethodOopDesc, _constants); } - static ByteSize exception_table_offset() - { return byte_offset_of(constMethodOopDesc, _exception_table); } // Garbage collection support oop* adr_constants() const { return (oop*)&_constants; } oop* adr_stackmap_data() const { return (oop*)&_stackmap_data; } - oop* adr_exception_table() const { return (oop*)&_exception_table; } bool is_conc_safe() { return _is_conc_safe; } void set_is_conc_safe(bool v) { _is_conc_safe = v; } |