truffle: src/share/vm/oops/constMethod.hpp annotate

annotate src/share/vm/oops/constMethod.hpp @ 7300:2912b72d840a

More complete and reusable Word type

author	Christian Wimmer <christian.wimmer@oracle.com>
date	Fri, 04 Jan 2013 12:08:11 -0800
parents	b2dbd323c668
children	fd74228fd5ca

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
6123 2fe087c3e814 7172967: Eliminate constMethod's _method backpointer to methodOop. jiangli parents: 1972 diff changeset	2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1138 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1138 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1138 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	25 #ifndef SHARE_VM_OOPS_CONSTMETHODOOP_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #define SHARE_VM_OOPS_CONSTMETHODOOP_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	27
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	28 #include "oops/oop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	29
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	30 // An ConstMethod* represents portions of a Java method which
0 a61af66fc99e Initial load duke parents: diff changeset	31 // do not vary.
a61af66fc99e Initial load duke parents: diff changeset	32 //
a61af66fc99e Initial load duke parents: diff changeset	33 // Memory layout (each line represents a word). Note that most
a61af66fc99e Initial load duke parents: diff changeset	34 // applications load thousands of methods, so keeping the size of this
a61af66fc99e Initial load duke parents: diff changeset	35 // structure small has a big impact on footprint.
a61af66fc99e Initial load duke parents: diff changeset	36 //
a61af66fc99e Initial load duke parents: diff changeset	37 // \|------------------------------------------------------\|
a61af66fc99e Initial load duke parents: diff changeset	38 // \| header \|
a61af66fc99e Initial load duke parents: diff changeset	39 // \| klass \|
a61af66fc99e Initial load duke parents: diff changeset	40 // \|------------------------------------------------------\|
a61af66fc99e Initial load duke parents: diff changeset	41 // \| fingerprint 1 \|
a61af66fc99e Initial load duke parents: diff changeset	42 // \| fingerprint 2 \|
6123 2fe087c3e814 7172967: Eliminate constMethod's _method backpointer to methodOop. jiangli parents: 1972 diff changeset	43 // \| constants (oop) \|
0 a61af66fc99e Initial load duke parents: diff changeset	44 // \| stackmap_data (oop) \|
a61af66fc99e Initial load duke parents: diff changeset	45 // \| constMethod_size \|
a61af66fc99e Initial load duke parents: diff changeset	46 // \| interp_kind \| flags \| code_size \|
a61af66fc99e Initial load duke parents: diff changeset	47 // \| name index \| signature index \|
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	48 // \| method_idnum \| max_stack \|
0 a61af66fc99e Initial load duke parents: diff changeset	49 // \|------------------------------------------------------\|
a61af66fc99e Initial load duke parents: diff changeset	50 // \| \|
a61af66fc99e Initial load duke parents: diff changeset	51 // \| byte codes \|
a61af66fc99e Initial load duke parents: diff changeset	52 // \| \|
a61af66fc99e Initial load duke parents: diff changeset	53 // \|------------------------------------------------------\|
a61af66fc99e Initial load duke parents: diff changeset	54 // \| compressed linenumber table \|
a61af66fc99e Initial load duke parents: diff changeset	55 // \| (see class CompressedLineNumberReadStream) \|
a61af66fc99e Initial load duke parents: diff changeset	56 // \| (note that length is unknown until decompressed) \|
a61af66fc99e Initial load duke parents: diff changeset	57 // \| (access flags bit tells whether table is present) \|
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	58 // \| (indexed from start of ConstMethod*) \|
0 a61af66fc99e Initial load duke parents: diff changeset	59 // \| (elements not necessarily sorted!) \|
a61af66fc99e Initial load duke parents: diff changeset	60 // \|------------------------------------------------------\|
a61af66fc99e Initial load duke parents: diff changeset	61 // \| localvariable table elements + length (length last) \|
a61af66fc99e Initial load duke parents: diff changeset	62 // \| (length is u2, elements are 6-tuples of u2) \|
a61af66fc99e Initial load duke parents: diff changeset	63 // \| (see class LocalVariableTableElement) \|
a61af66fc99e Initial load duke parents: diff changeset	64 // \| (access flags bit tells whether table is present) \|
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	65 // \| (indexed from end of ConstMethod*) \|
6213 8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	66 // \|------------------------------------------------------\|
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	67 // \| exception table + length (length last) \|
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	68 // \| (length is u2, elements are 4-tuples of u2) \|
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	69 // \| (see class ExceptionTableElement) \|
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	70 // \| (access flags bit tells whether table is present) \|
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	71 // \| (indexed from end of ConstMethod*) \|
0 a61af66fc99e Initial load duke parents: diff changeset	72 // \|------------------------------------------------------\|
a61af66fc99e Initial load duke parents: diff changeset	73 // \| checked exceptions elements + length (length last) \|
a61af66fc99e Initial load duke parents: diff changeset	74 // \| (length is u2, elements are u2) \|
a61af66fc99e Initial load duke parents: diff changeset	75 // \| (see class CheckedExceptionElement) \|
a61af66fc99e Initial load duke parents: diff changeset	76 // \| (access flags bit tells whether table is present) \|
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	77 // \| (indexed from end of ConstMethod*) \|
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	78 // \|------------------------------------------------------\|
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	79 // \| generic signature index (u2) \|
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	80 // \| (indexed from start of constMethodOop) \|
0 a61af66fc99e Initial load duke parents: diff changeset	81 // \|------------------------------------------------------\|
a61af66fc99e Initial load duke parents: diff changeset	82
a61af66fc99e Initial load duke parents: diff changeset	83
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	84 // Utitily class decribing elements in checked exceptions table inlined in Method*.
0 a61af66fc99e Initial load duke parents: diff changeset	85 class CheckedExceptionElement VALUE_OBJ_CLASS_SPEC {
a61af66fc99e Initial load duke parents: diff changeset	86 public:
a61af66fc99e Initial load duke parents: diff changeset	87 u2 class_cp_index;
a61af66fc99e Initial load duke parents: diff changeset	88 };
a61af66fc99e Initial load duke parents: diff changeset	89
a61af66fc99e Initial load duke parents: diff changeset	90
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	91 // Utitily class decribing elements in local variable table inlined in Method*.
0 a61af66fc99e Initial load duke parents: diff changeset	92 class LocalVariableTableElement VALUE_OBJ_CLASS_SPEC {
a61af66fc99e Initial load duke parents: diff changeset	93 public:
a61af66fc99e Initial load duke parents: diff changeset	94 u2 start_bci;
a61af66fc99e Initial load duke parents: diff changeset	95 u2 length;
a61af66fc99e Initial load duke parents: diff changeset	96 u2 name_cp_index;
a61af66fc99e Initial load duke parents: diff changeset	97 u2 descriptor_cp_index;
a61af66fc99e Initial load duke parents: diff changeset	98 u2 signature_cp_index;
a61af66fc99e Initial load duke parents: diff changeset	99 u2 slot;
a61af66fc99e Initial load duke parents: diff changeset	100 };
a61af66fc99e Initial load duke parents: diff changeset	101
6213 8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	102 // Utitily class describing elements in exception table
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	103 class ExceptionTableElement VALUE_OBJ_CLASS_SPEC {
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	104 public:
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	105 u2 start_pc;
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	106 u2 end_pc;
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	107 u2 handler_pc;
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	108 u2 catch_type_index;
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	109 };
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	110
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	111
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	112 class ConstMethod : public MetaspaceObj {
0 a61af66fc99e Initial load duke parents: diff changeset	113 friend class VMStructs;
6934 4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	114
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	115 public:
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	116 typedef enum { NORMAL, OVERPASS } MethodType;
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	117
0 a61af66fc99e Initial load duke parents: diff changeset	118 private:
a61af66fc99e Initial load duke parents: diff changeset	119 enum {
a61af66fc99e Initial load duke parents: diff changeset	120 _has_linenumber_table = 1,
a61af66fc99e Initial load duke parents: diff changeset	121 _has_checked_exceptions = 2,
6213 8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	122 _has_localvariable_table = 4,
6934 4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	123 _has_exception_table = 8,
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	124 _has_generic_signature = 16,
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	125 _is_overpass = 32
0 a61af66fc99e Initial load duke parents: diff changeset	126 };
a61af66fc99e Initial load duke parents: diff changeset	127
a61af66fc99e Initial load duke parents: diff changeset	128 // Bit vector of signature
a61af66fc99e Initial load duke parents: diff changeset	129 // Callers interpret 0=not initialized yet and
a61af66fc99e Initial load duke parents: diff changeset	130 // -1=too many args to fix, must parse the slow way.
a61af66fc99e Initial load duke parents: diff changeset	131 // The real initial value is special to account for nonatomicity of 64 bit
a61af66fc99e Initial load duke parents: diff changeset	132 // loads and stores. This value may updated and read without a lock by
a61af66fc99e Initial load duke parents: diff changeset	133 // multiple threads, so is volatile.
a61af66fc99e Initial load duke parents: diff changeset	134 volatile uint64_t _fingerprint;
a61af66fc99e Initial load duke parents: diff changeset	135
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	136 ConstantPool* _constants; // Constant pool
0 a61af66fc99e Initial load duke parents: diff changeset	137
a61af66fc99e Initial load duke parents: diff changeset	138 // Raw stackmap data for the method
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	139 Array<u1>* _stackmap_data;
0 a61af66fc99e Initial load duke parents: diff changeset	140
a61af66fc99e Initial load duke parents: diff changeset	141 int _constMethod_size;
a61af66fc99e Initial load duke parents: diff changeset	142 jbyte _interpreter_kind;
a61af66fc99e Initial load duke parents: diff changeset	143 jbyte _flags;
a61af66fc99e Initial load duke parents: diff changeset	144
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	145 // Size of Java bytecodes allocated immediately after Method*.
0 a61af66fc99e Initial load duke parents: diff changeset	146 u2 _code_size;
a61af66fc99e Initial load duke parents: diff changeset	147 u2 _name_index; // Method name (index in constant pool)
a61af66fc99e Initial load duke parents: diff changeset	148 u2 _signature_index; // Method signature (index in constant pool)
a61af66fc99e Initial load duke parents: diff changeset	149 u2 _method_idnum; // unique identification number for the method within the class
a61af66fc99e Initial load duke parents: diff changeset	150 // initially corresponds to the index into the methods array.
a61af66fc99e Initial load duke parents: diff changeset	151 // but this may change with redefinition
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	152 u2 _max_stack; // Maximum number of entries on the expression stack
0 a61af66fc99e Initial load duke parents: diff changeset	153
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	154
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	155 // Constructor
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	156 ConstMethod(int byte_code_size,
6934 4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	157 int compressed_line_number_size,
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	158 int localvariable_table_length,
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	159 int exception_table_length,
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	160 int checked_exceptions_length,
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	161 u2 generic_signature_index,
6934 4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	162 MethodType is_overpass,
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	163 int size);
0 a61af66fc99e Initial load duke parents: diff changeset	164 public:
6934 4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	165
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	166 static ConstMethod* allocate(ClassLoaderData* loader_data,
6934 4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	167 int byte_code_size,
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	168 int compressed_line_number_size,
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	169 int localvariable_table_length,
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	170 int exception_table_length,
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	171 int checked_exceptions_length,
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	172 u2 generic_signature_index,
6934 4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	173 MethodType mt,
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	174 TRAPS);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	175
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	176 bool is_constMethod() const { return true; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	177
0 a61af66fc99e Initial load duke parents: diff changeset	178 // Inlined tables
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	179 void set_inlined_tables_length(u2 generic_signature_index,
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	180 int checked_exceptions_len,
0 a61af66fc99e Initial load duke parents: diff changeset	181 int compressed_line_number_size,
6213 8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	182 int localvariable_table_len,
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	183 int exception_table_len);
0 a61af66fc99e Initial load duke parents: diff changeset	184
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	185 bool has_generic_signature() const
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	186 { return (_flags & _has_generic_signature) != 0; }
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	187
0 a61af66fc99e Initial load duke parents: diff changeset	188 bool has_linenumber_table() const
a61af66fc99e Initial load duke parents: diff changeset	189 { return (_flags & _has_linenumber_table) != 0; }
a61af66fc99e Initial load duke parents: diff changeset	190
a61af66fc99e Initial load duke parents: diff changeset	191 bool has_checked_exceptions() const
a61af66fc99e Initial load duke parents: diff changeset	192 { return (_flags & _has_checked_exceptions) != 0; }
a61af66fc99e Initial load duke parents: diff changeset	193
a61af66fc99e Initial load duke parents: diff changeset	194 bool has_localvariable_table() const
a61af66fc99e Initial load duke parents: diff changeset	195 { return (_flags & _has_localvariable_table) != 0; }
a61af66fc99e Initial load duke parents: diff changeset	196
6213 8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	197 bool has_exception_handler() const
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	198 { return (_flags & _has_exception_table) != 0; }
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	199
6934 4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	200 MethodType method_type() const {
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	201 return ((_flags & _is_overpass) == 0) ? NORMAL : OVERPASS;
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	202 }
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	203
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	204 void set_method_type(MethodType mt) {
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	205 if (mt == NORMAL) {
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	206 _flags &= ~(_is_overpass);
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	207 } else {
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	208 _flags \|= _is_overpass;
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	209 }
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	210 }
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	211
4735d2c84362 7200776: Implement default methods in interfaces kamg parents: 6725 diff changeset	212
0 a61af66fc99e Initial load duke parents: diff changeset	213 void set_interpreter_kind(int kind) { _interpreter_kind = kind; }
a61af66fc99e Initial load duke parents: diff changeset	214 int interpreter_kind(void) const { return _interpreter_kind; }
a61af66fc99e Initial load duke parents: diff changeset	215
6123 2fe087c3e814 7172967: Eliminate constMethod's _method backpointer to methodOop. jiangli parents: 1972 diff changeset	216 // constant pool
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	217 ConstantPool* constants() const { return _constants; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	218 void set_constants(ConstantPool* c) { _constants = c; }
0 a61af66fc99e Initial load duke parents: diff changeset	219
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	220 Method* method() const;
0 a61af66fc99e Initial load duke parents: diff changeset	221
a61af66fc99e Initial load duke parents: diff changeset	222 // stackmap table data
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	223 Array<u1>* stackmap_data() const { return _stackmap_data; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	224 void set_stackmap_data(Array<u1>* sd) { _stackmap_data = sd; }
0 a61af66fc99e Initial load duke parents: diff changeset	225 bool has_stackmap_table() const { return _stackmap_data != NULL; }
a61af66fc99e Initial load duke parents: diff changeset	226
a61af66fc99e Initial load duke parents: diff changeset	227 void init_fingerprint() {
a61af66fc99e Initial load duke parents: diff changeset	228 const uint64_t initval = CONST64(0x8000000000000000);
a61af66fc99e Initial load duke parents: diff changeset	229 _fingerprint = initval;
a61af66fc99e Initial load duke parents: diff changeset	230 }
a61af66fc99e Initial load duke parents: diff changeset	231
a61af66fc99e Initial load duke parents: diff changeset	232 uint64_t fingerprint() const {
a61af66fc99e Initial load duke parents: diff changeset	233 // Since reads aren't atomic for 64 bits, if any of the high or low order
a61af66fc99e Initial load duke parents: diff changeset	234 // word is the initial value, return 0. See init_fingerprint for initval.
a61af66fc99e Initial load duke parents: diff changeset	235 uint high_fp = (uint)(_fingerprint >> 32);
a61af66fc99e Initial load duke parents: diff changeset	236 if ((int) _fingerprint == 0 \|\| high_fp == 0x80000000) {
a61af66fc99e Initial load duke parents: diff changeset	237 return 0L;
a61af66fc99e Initial load duke parents: diff changeset	238 } else {
a61af66fc99e Initial load duke parents: diff changeset	239 return _fingerprint;
a61af66fc99e Initial load duke parents: diff changeset	240 }
a61af66fc99e Initial load duke parents: diff changeset	241 }
a61af66fc99e Initial load duke parents: diff changeset	242
a61af66fc99e Initial load duke parents: diff changeset	243 uint64_t set_fingerprint(uint64_t new_fingerprint) {
a61af66fc99e Initial load duke parents: diff changeset	244 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	245 // Assert only valid if complete/valid 64 bit _fingerprint value is read.
a61af66fc99e Initial load duke parents: diff changeset	246 uint64_t oldfp = fingerprint();
a61af66fc99e Initial load duke parents: diff changeset	247 #endif // ASSERT
a61af66fc99e Initial load duke parents: diff changeset	248 _fingerprint = new_fingerprint;
a61af66fc99e Initial load duke parents: diff changeset	249 assert(oldfp == 0L \|\| new_fingerprint == oldfp,
a61af66fc99e Initial load duke parents: diff changeset	250 "fingerprint cannot change");
a61af66fc99e Initial load duke parents: diff changeset	251 assert(((new_fingerprint >> 32) != 0x80000000) && (int)new_fingerprint !=0,
a61af66fc99e Initial load duke parents: diff changeset	252 "fingerprint should call init to set initial value");
a61af66fc99e Initial load duke parents: diff changeset	253 return new_fingerprint;
a61af66fc99e Initial load duke parents: diff changeset	254 }
a61af66fc99e Initial load duke parents: diff changeset	255
a61af66fc99e Initial load duke parents: diff changeset	256 // name
a61af66fc99e Initial load duke parents: diff changeset	257 int name_index() const { return _name_index; }
a61af66fc99e Initial load duke parents: diff changeset	258 void set_name_index(int index) { _name_index = index; }
a61af66fc99e Initial load duke parents: diff changeset	259
a61af66fc99e Initial load duke parents: diff changeset	260 // signature
a61af66fc99e Initial load duke parents: diff changeset	261 int signature_index() const { return _signature_index; }
a61af66fc99e Initial load duke parents: diff changeset	262 void set_signature_index(int index) { _signature_index = index; }
a61af66fc99e Initial load duke parents: diff changeset	263
a61af66fc99e Initial load duke parents: diff changeset	264 // generics support
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	265 int generic_signature_index() const {
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	266 if (has_generic_signature()) {
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	267 return *generic_signature_index_addr();
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	268 } else {
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	269 return 0;
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	270 }
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	271 }
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	272 void set_generic_signature_index(u2 index) {
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	273 assert(has_generic_signature(), "");
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	274 u2* addr = generic_signature_index_addr();
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	275 *addr = index;
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	276 }
0 a61af66fc99e Initial load duke parents: diff changeset	277
a61af66fc99e Initial load duke parents: diff changeset	278 // Sizing
a61af66fc99e Initial load duke parents: diff changeset	279 static int header_size() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	280 return sizeof(ConstMethod)/HeapWordSize;
0 a61af66fc99e Initial load duke parents: diff changeset	281 }
a61af66fc99e Initial load duke parents: diff changeset	282
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	283 // Size needed
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	284 static int size(int code_size, int compressed_line_number_size,
0 a61af66fc99e Initial load duke parents: diff changeset	285 int local_variable_table_length,
6213 8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	286 int exception_table_length,
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	287 int checked_exceptions_length,
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	288 u2 generic_signature_index);
0 a61af66fc99e Initial load duke parents: diff changeset	289
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	290 int size() const { return _constMethod_size;}
0 a61af66fc99e Initial load duke parents: diff changeset	291 void set_constMethod_size(int size) { _constMethod_size = size; }
a61af66fc99e Initial load duke parents: diff changeset	292
a61af66fc99e Initial load duke parents: diff changeset	293 // code size
a61af66fc99e Initial load duke parents: diff changeset	294 int code_size() const { return _code_size; }
a61af66fc99e Initial load duke parents: diff changeset	295 void set_code_size(int size) {
a61af66fc99e Initial load duke parents: diff changeset	296 assert(max_method_code_size < (1 << 16),
a61af66fc99e Initial load duke parents: diff changeset	297 "u2 is too small to hold method code size in general");
a61af66fc99e Initial load duke parents: diff changeset	298 assert(0 <= size && size <= max_method_code_size, "invalid code size");
a61af66fc99e Initial load duke parents: diff changeset	299 _code_size = size;
a61af66fc99e Initial load duke parents: diff changeset	300 }
a61af66fc99e Initial load duke parents: diff changeset	301
a61af66fc99e Initial load duke parents: diff changeset	302 // linenumber table - note that length is unknown until decompression,
a61af66fc99e Initial load duke parents: diff changeset	303 // see class CompressedLineNumberReadStream.
a61af66fc99e Initial load duke parents: diff changeset	304 u_char* compressed_linenumber_table() const; // not preserved by gc
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	305 u2* generic_signature_index_addr() const;
0 a61af66fc99e Initial load duke parents: diff changeset	306 u2* checked_exceptions_length_addr() const;
a61af66fc99e Initial load duke parents: diff changeset	307 u2* localvariable_table_length_addr() const;
6213 8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	308 u2* exception_table_length_addr() const;
0 a61af66fc99e Initial load duke parents: diff changeset	309
a61af66fc99e Initial load duke parents: diff changeset	310 // checked exceptions
a61af66fc99e Initial load duke parents: diff changeset	311 int checked_exceptions_length() const;
a61af66fc99e Initial load duke parents: diff changeset	312 CheckedExceptionElement* checked_exceptions_start() const;
a61af66fc99e Initial load duke parents: diff changeset	313
a61af66fc99e Initial load duke parents: diff changeset	314 // localvariable table
a61af66fc99e Initial load duke parents: diff changeset	315 int localvariable_table_length() const;
a61af66fc99e Initial load duke parents: diff changeset	316 LocalVariableTableElement* localvariable_table_start() const;
a61af66fc99e Initial load duke parents: diff changeset	317
6213 8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	318 // exception table
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	319 int exception_table_length() const;
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	320 ExceptionTableElement* exception_table_start() const;
8150fa46d2ed 7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. jiangli parents: 6123 diff changeset	321
0 a61af66fc99e Initial load duke parents: diff changeset	322 // byte codes
1138 dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 579 diff changeset	323 void set_code(address code) {
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 579 diff changeset	324 if (code_size() > 0) {
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 579 diff changeset	325 memcpy(code_base(), code, code_size());
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 579 diff changeset	326 }
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2 twisti parents: 579 diff changeset	327 }
0 a61af66fc99e Initial load duke parents: diff changeset	328 address code_base() const { return (address) (this+1); }
a61af66fc99e Initial load duke parents: diff changeset	329 address code_end() const { return code_base() + code_size(); }
a61af66fc99e Initial load duke parents: diff changeset	330 bool contains(address bcp) const { return code_base() <= bcp
a61af66fc99e Initial load duke parents: diff changeset	331 && bcp < code_end(); }
a61af66fc99e Initial load duke parents: diff changeset	332 // Offset to bytecodes
a61af66fc99e Initial load duke parents: diff changeset	333 static ByteSize codes_offset()
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	334 { return in_ByteSize(sizeof(ConstMethod)); }
0 a61af66fc99e Initial load duke parents: diff changeset	335
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	336 static ByteSize constants_offset()
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	337 { return byte_offset_of(ConstMethod, _constants); }
0 a61af66fc99e Initial load duke parents: diff changeset	338
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	339 static ByteSize max_stack_offset()
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	340 { return byte_offset_of(ConstMethod, _max_stack); }
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	341
0 a61af66fc99e Initial load duke parents: diff changeset	342 // Unique id for the method
a61af66fc99e Initial load duke parents: diff changeset	343 static const u2 MAX_IDNUM;
a61af66fc99e Initial load duke parents: diff changeset	344 static const u2 UNSET_IDNUM;
a61af66fc99e Initial load duke parents: diff changeset	345 u2 method_idnum() const { return _method_idnum; }
a61af66fc99e Initial load duke parents: diff changeset	346 void set_method_idnum(u2 idnum) { _method_idnum = idnum; }
a61af66fc99e Initial load duke parents: diff changeset	347
7183 b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	348 // max stack
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	349 int max_stack() const { return _max_stack; }
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	350 void set_max_stack(int size) { _max_stack = size; }
b2dbd323c668 8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod. jiangli parents: 6934 diff changeset	351
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	352 // Deallocation for RedefineClasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	353 void deallocate_contents(ClassLoaderData* loader_data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	354 bool is_klass() const { return false; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	355 DEBUG_ONLY(bool on_stack() { return false; })
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	356
0 a61af66fc99e Initial load duke parents: diff changeset	357 private:
a61af66fc99e Initial load duke parents: diff changeset	358 // Since the size of the compressed line number table is unknown, the
a61af66fc99e Initial load duke parents: diff changeset	359 // offsets of the other variable sized sections are computed backwards
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	360 // from the end of the ConstMethod*.
0 a61af66fc99e Initial load duke parents: diff changeset	361
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	362 // First byte after ConstMethod*
0 a61af66fc99e Initial load duke parents: diff changeset	363 address constMethod_end() const
a61af66fc99e Initial load duke parents: diff changeset	364 { return (address)((oop*)this + _constMethod_size); }
a61af66fc99e Initial load duke parents: diff changeset	365
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	366 // Last short in ConstMethod*
0 a61af66fc99e Initial load duke parents: diff changeset	367 u2* last_u2_element() const
a61af66fc99e Initial load duke parents: diff changeset	368 { return (u2*)constMethod_end() - 1; }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	369
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	370 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	371 // Printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	372 void print_on (outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	373 void print_value_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	374
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	375 const char* internal_name() const { return "{constMethod}"; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	376
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	377 // Verify
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6213 diff changeset	378 void verify_on(outputStream* st);
0 a61af66fc99e Initial load duke parents: diff changeset	379 };
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	380
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	381 #endif // SHARE_VM_OOPS_CONSTMETHODOOP_HPP

Mercurial > hg > truffle

annotate src/share/vm/oops/constMethod.hpp @ 7300:2912b72d840a