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src/share/vm/oops/constMethodKlass.hpp@443791f333a2 (annotated)

src/share/vm/oops/constMethodKlass.hpp

Tue, 14 Oct 2008 10:15:33 -0400

author

coleenp

date

Tue, 14 Oct 2008 10:15:33 -0400

changeset 833

443791f333a2

parent 435

a61af66fc99e

child 953

0af8b0718fc9

permissions

-rw-r--r--

6700107: java/lang/Class/forName/TooManyDimensions.java crashes with SIGSEGV in c2 compiler with fastdebug
Summary: objArrayKlass::compute_modifier_flags was unnecessarily recursive
Reviewed-by: kamg

duke@435	1	/*
duke@435	2	* Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// A constMethodKlass is the klass of a constMethodOop
duke@435	26
duke@435	27	class constMethodKlass : public Klass {
duke@435	28	friend class VMStructs;
duke@435	29	private:
duke@435	30	juint _alloc_size; // allocation profiling support
duke@435	31	public:
duke@435	32	// Testing
duke@435	33	bool oop_is_constMethod() const { return true; }
duke@435	34	virtual bool oop_is_parsable(oop obj) const;
duke@435	35
duke@435	36	// Allocation
duke@435	37	DEFINE_ALLOCATE_PERMANENT(constMethodKlass);
duke@435	38	constMethodOop allocate(int byte_code_size, int compressed_line_number_size,
duke@435	39	int localvariable_table_length,
duke@435	40	int checked_exceptions_length, TRAPS);
duke@435	41	static klassOop create_klass(TRAPS);
duke@435	42
duke@435	43	// Sizing
duke@435	44	int oop_size(oop obj) const;
duke@435	45	int klass_oop_size() const { return object_size(); }
duke@435	46
duke@435	47	// Casting from klassOop
duke@435	48	static constMethodKlass* cast(klassOop k) {
duke@435	49	assert(k->klass_part()->oop_is_constMethod(), "cast to constMethodKlass");
duke@435	50	return (constMethodKlass*) k->klass_part();
duke@435	51	}
duke@435	52
duke@435	53	// Sizing
duke@435	54	static int header_size() {
duke@435	55	return oopDesc::header_size() + sizeof(constMethodKlass)/HeapWordSize;
duke@435	56	}
duke@435	57	int object_size() const {
duke@435	58	return align_object_size(header_size());
duke@435	59	}
duke@435	60
duke@435	61	// Garbage collection
duke@435	62	void oop_follow_contents(oop obj);
duke@435	63	int oop_adjust_pointers(oop obj);
duke@435	64
duke@435	65	// Parallel Scavenge and Parallel Old
duke@435	66	PARALLEL_GC_DECLS
duke@435	67
duke@435	68	// Allocation profiling support
duke@435	69	juint alloc_size() const { return _alloc_size; }
duke@435	70	void set_alloc_size(juint n) { _alloc_size = n; }
duke@435	71
duke@435	72	// Iterators
duke@435	73	int oop_oop_iterate(oop obj, OopClosure* blk);
duke@435	74	int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
duke@435	75
duke@435	76	#ifndef PRODUCT
duke@435	77	public:
duke@435	78	// Printing
duke@435	79	void oop_print_on (oop obj, outputStream* st);
duke@435	80	void oop_print_value_on(oop obj, outputStream* st);
duke@435	81
duke@435	82	#endif
duke@435	83
duke@435	84	public:
duke@435	85	// Verify operations
duke@435	86	const char* internal_name() const;
duke@435	87	void oop_verify_on(oop obj, outputStream* st);
duke@435	88	bool oop_partially_loaded(oop obj) const;
duke@435	89	void oop_set_partially_loaded(oop obj);
duke@435	90	};