• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/vm/ci/ciObjectFactory.hpp@bd7a7ce2e264 (annotated)

src/share/vm/ci/ciObjectFactory.hpp

Mon, 12 Nov 2012 14:03:53 -0800

author

minqi

date

Mon, 12 Nov 2012 14:03:53 -0800

changeset 4267

bd7a7ce2e264

parent 4037

da91efe96a93

child 5628

f98f5d48f511

permissions

-rw-r--r--

6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com

duke@435	1	/*
coleenp@4037	2	* Copyright (c) 1999, 2012, Oracle and/or its affiliates. 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	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_CI_CIOBJECTFACTORY_HPP
stefank@2314	26	#define SHARE_VM_CI_CIOBJECTFACTORY_HPP
stefank@2314	27
stefank@2314	28	#include "ci/ciClassList.hpp"
stefank@2314	29	#include "ci/ciObject.hpp"
stefank@2314	30	#include "utilities/growableArray.hpp"
stefank@2314	31
duke@435	32	// ciObjectFactory
duke@435	33	//
duke@435	34	// This class handles requests for the creation of new instances
duke@435	35	// of ciObject and its subclasses. It contains a caching mechanism
duke@435	36	// which ensures that for each oop, at most one ciObject is created.
duke@435	37	// This invariant allows efficient implementation of ciObject.
duke@435	38	class ciObjectFactory : public ResourceObj {
never@3138	39	friend class VMStructs;
never@3138	40	friend class ciEnv;
never@3138	41
duke@435	42	private:
duke@435	43	static volatile bool _initialized;
coleenp@4037	44	static GrowableArray<ciMetadata*>* _shared_ci_metadata;
duke@435	45	static ciSymbol* _shared_ci_symbols[];
duke@435	46	static int _shared_ident_limit;
duke@435	47
duke@435	48	Arena* _arena;
coleenp@4037	49	GrowableArray<ciMetadata*>* _ci_metadata;
duke@435	50	GrowableArray<ciMethod*>* _unloaded_methods;
duke@435	51	GrowableArray<ciKlass*>* _unloaded_klasses;
jrose@1957	52	GrowableArray<ciInstance*>* _unloaded_instances;
duke@435	53	GrowableArray<ciReturnAddress*>* _return_addresses;
coleenp@2497	54	GrowableArray<ciSymbol*>* _symbols; // keep list of symbols created
duke@435	55	int _next_ident;
duke@435	56
duke@435	57	public:
duke@435	58	struct NonPermObject : public ResourceObj {
duke@435	59	ciObject* _object;
duke@435	60	NonPermObject* _next;
duke@435	61
duke@435	62	inline NonPermObject(NonPermObject* &bucket, oop key, ciObject* object);
duke@435	63	ciObject* object() { return _object; }
duke@435	64	NonPermObject* &next() { return _next; }
duke@435	65	};
duke@435	66	private:
duke@435	67	enum { NON_PERM_BUCKETS = 61 };
duke@435	68	NonPermObject* _non_perm_bucket[NON_PERM_BUCKETS];
duke@435	69	int _non_perm_count;
duke@435	70
coleenp@4037	71	int find(Metadata* key, GrowableArray<ciMetadata*>* objects);
coleenp@4037	72	bool is_found_at(int index, Metadata* key, GrowableArray<ciMetadata*>* objects);
coleenp@4037	73	void insert(int index, ciMetadata* obj, GrowableArray<ciMetadata*>* objects);
coleenp@4037	74
duke@435	75	ciObject* create_new_object(oop o);
coleenp@4037	76	ciMetadata* create_new_object(Metadata* o);
coleenp@4037	77
duke@435	78	static bool is_equal(NonPermObject* p, oop key) {
duke@435	79	return p->object()->get_oop() == key;
duke@435	80	}
duke@435	81
duke@435	82	NonPermObject* &find_non_perm(oop key);
duke@435	83	void insert_non_perm(NonPermObject* &where, oop key, ciObject* obj);
duke@435	84
coleenp@4037	85	void init_ident_of(ciBaseObject* obj);
duke@435	86
duke@435	87	Arena* arena() { return _arena; }
duke@435	88
duke@435	89	void print_contents_impl();
duke@435	90
jrose@1957	91	ciInstance* get_unloaded_instance(ciInstanceKlass* klass);
jrose@1957	92
duke@435	93	public:
duke@435	94	static bool is_initialized() { return _initialized; }
duke@435	95
duke@435	96	static void initialize();
duke@435	97	void init_shared_objects();
coleenp@2497	98	void remove_symbols();
duke@435	99
duke@435	100	ciObjectFactory(Arena* arena, int expected_size);
duke@435	101
duke@435	102	// Get the ciObject corresponding to some oop.
duke@435	103	ciObject* get(oop key);
coleenp@4037	104	ciMetadata* get_metadata(Metadata* key);
coleenp@2497	105	ciSymbol* get_symbol(Symbol* key);
coleenp@2497	106
duke@435	107	// Get the ciSymbol corresponding to one of the vmSymbols.
duke@435	108	static ciSymbol* vm_symbol_at(int index);
duke@435	109
duke@435	110	// Get the ciMethod representing an unloaded/unfound method.
duke@435	111	ciMethod* get_unloaded_method(ciInstanceKlass* holder,
duke@435	112	ciSymbol* name,
twisti@3197	113	ciSymbol* signature,
twisti@3197	114	ciInstanceKlass* accessor);
duke@435	115
duke@435	116	// Get a ciKlass representing an unloaded klass.
duke@435	117	ciKlass* get_unloaded_klass(ciKlass* accessing_klass,
duke@435	118	ciSymbol* name,
duke@435	119	bool create_if_not_found);
duke@435	120
jrose@1957	121	// Get a ciInstance representing an unresolved klass mirror.
jrose@1957	122	ciInstance* get_unloaded_klass_mirror(ciKlass* type);
jrose@1957	123
jrose@1957	124	// Get a ciInstance representing an unresolved method handle constant.
jrose@1957	125	ciInstance* get_unloaded_method_handle_constant(ciKlass* holder,
jrose@1957	126	ciSymbol* name,
jrose@1957	127	ciSymbol* signature,
jrose@1957	128	int ref_kind);
jrose@1957	129
jrose@1957	130	// Get a ciInstance representing an unresolved method type constant.
jrose@1957	131	ciInstance* get_unloaded_method_type_constant(ciSymbol* signature);
jrose@1957	132
duke@435	133
duke@435	134	// Get the ciMethodData representing the methodData for a method
duke@435	135	// with none.
duke@435	136	ciMethodData* get_empty_methodData();
duke@435	137
duke@435	138	ciReturnAddress* get_return_address(int bci);
duke@435	139
minqi@4267	140	GrowableArray<ciMetadata*>* get_ci_metadata() const { return _ci_metadata; }
coleenp@4037	141	// RedefineClasses support
coleenp@4037	142	void metadata_do(void f(Metadata*));
coleenp@4037	143
duke@435	144	void print_contents();
duke@435	145	void print();
duke@435	146	};
stefank@2314	147
stefank@2314	148	#endif // SHARE_VM_CI_CIOBJECTFACTORY_HPP