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src/share/vm/utilities/constantTag.cpp@da91efe96a93 (annotated)

src/share/vm/utilities/constantTag.cpp

Sat, 01 Sep 2012 13:25:18 -0400

author

coleenp

date

Sat, 01 Sep 2012 13:25:18 -0400

changeset 4037

da91efe96a93

parent 2742

ed69575596ac

child 4643

f16e75e0cf11

permissions

-rw-r--r--

6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>

duke@435	1	/*
coleenp@4037	2	* Copyright (c) 1997, 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	#include "precompiled.hpp"
stefank@2314	26	#include "utilities/constantTag.hpp"
duke@435	27
duke@435	28	#ifndef PRODUCT
duke@435	29
duke@435	30	void constantTag::print_on(outputStream* st) const {
jrose@1957	31	st->print(internal_name());
jrose@1957	32	}
jrose@1957	33
jrose@1957	34	#endif // PRODUCT
jrose@1957	35
jrose@1957	36	BasicType constantTag::basic_type() const {
duke@435	37	switch (_tag) {
jrose@1957	38	case JVM_CONSTANT_Integer :
jrose@1957	39	return T_INT;
jrose@1957	40	case JVM_CONSTANT_Float :
jrose@1957	41	return T_FLOAT;
jrose@1957	42	case JVM_CONSTANT_Long :
jrose@1957	43	return T_LONG;
jrose@1957	44	case JVM_CONSTANT_Double :
jrose@1957	45	return T_DOUBLE;
jrose@1957	46
duke@435	47	case JVM_CONSTANT_Class :
duke@435	48	case JVM_CONSTANT_String :
duke@435	49	case JVM_CONSTANT_UnresolvedClass :
jrose@1957	50	case JVM_CONSTANT_UnresolvedClassInError :
duke@435	51	case JVM_CONSTANT_ClassIndex :
duke@435	52	case JVM_CONSTANT_StringIndex :
jrose@1957	53	case JVM_CONSTANT_MethodHandle :
jrose@1957	54	case JVM_CONSTANT_MethodType :
jrose@1957	55	case JVM_CONSTANT_Object :
jrose@1957	56	return T_OBJECT;
duke@435	57	default:
duke@435	58	ShouldNotReachHere();
jrose@1957	59	return T_ILLEGAL;
duke@435	60	}
duke@435	61	}
duke@435	62
jrose@1957	63
jrose@1957	64
jrose@1957	65	const char* constantTag::internal_name() const {
jrose@1957	66	switch (_tag) {
jrose@1957	67	case JVM_CONSTANT_Invalid :
jrose@1957	68	return "Invalid index";
jrose@1957	69	case JVM_CONSTANT_Class :
jrose@1957	70	return "Class";
jrose@1957	71	case JVM_CONSTANT_Fieldref :
jrose@1957	72	return "Field";
jrose@1957	73	case JVM_CONSTANT_Methodref :
jrose@1957	74	return "Method";
jrose@1957	75	case JVM_CONSTANT_InterfaceMethodref :
jrose@1957	76	return "InterfaceMethod";
jrose@1957	77	case JVM_CONSTANT_String :
jrose@1957	78	return "String";
jrose@1957	79	case JVM_CONSTANT_Integer :
jrose@1957	80	return "Integer";
jrose@1957	81	case JVM_CONSTANT_Float :
jrose@1957	82	return "Float";
jrose@1957	83	case JVM_CONSTANT_Long :
jrose@1957	84	return "Long";
jrose@1957	85	case JVM_CONSTANT_Double :
jrose@1957	86	return "Double";
jrose@1957	87	case JVM_CONSTANT_NameAndType :
jrose@1957	88	return "NameAndType";
jrose@1957	89	case JVM_CONSTANT_MethodHandle :
jrose@1957	90	return "MethodHandle";
coleenp@4037	91	case JVM_CONSTANT_MethodHandleInError :
coleenp@4037	92	return "MethodHandle Error";
jrose@1957	93	case JVM_CONSTANT_MethodType :
jrose@1957	94	return "MethodType";
coleenp@4037	95	case JVM_CONSTANT_MethodTypeInError :
coleenp@4037	96	return "MethodType Error";
jrose@2015	97	case JVM_CONSTANT_InvokeDynamic :
jrose@2015	98	return "InvokeDynamic";
jrose@1957	99	case JVM_CONSTANT_Object :
jrose@1957	100	return "Object";
jrose@1957	101	case JVM_CONSTANT_Utf8 :
jrose@1957	102	return "Utf8";
jrose@1957	103	case JVM_CONSTANT_UnresolvedClass :
jrose@1957	104	return "Unresolved Class";
jrose@1957	105	case JVM_CONSTANT_UnresolvedClassInError :
jrose@1957	106	return "Unresolved Class Error";
jrose@1957	107	case JVM_CONSTANT_ClassIndex :
jrose@1957	108	return "Unresolved Class Index";
jrose@1957	109	case JVM_CONSTANT_StringIndex :
jrose@1957	110	return "Unresolved String Index";
jrose@1957	111	default:
jrose@1957	112	ShouldNotReachHere();
jrose@1957	113	return "Illegal";
jrose@1957	114	}
jrose@1957	115	}