truffle: src/share/vm/classfile/classLoader.hpp annotate

annotate src/share/vm/classfile/classLoader.hpp @ 20375:6e0cb14ce59b

8046070: Class Data Sharing clean up and refactoring Summary: Cleaned up CDS to be more configurable, maintainable and extensible Reviewed-by: dholmes, coleenp, acorn, mchung

author	iklam
date	Thu, 21 Aug 2014 13:57:51 -0700
parents	7e7dd25666da
children	bb239308be67

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
12135 7e7dd25666da 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error ccheung parents: 9150 diff changeset	2 * Copyright (c) 1997, 2013, 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: 948 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 948 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: 948 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_CLASSFILE_CLASSLOADER_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #define SHARE_VM_CLASSFILE_CLASSLOADER_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 "classfile/classFileParser.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	29 #include "runtime/perfData.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	30
0 a61af66fc99e Initial load duke parents: diff changeset	31 // The VM class loader.
a61af66fc99e Initial load duke parents: diff changeset	32 #include <sys/stat.h>
a61af66fc99e Initial load duke parents: diff changeset	33
a61af66fc99e Initial load duke parents: diff changeset	34
a61af66fc99e Initial load duke parents: diff changeset	35 // Meta-index (optional, to be able to skip opening boot classpath jar files)
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 2426 diff changeset	36 class MetaIndex: public CHeapObj<mtClass> {
0 a61af66fc99e Initial load duke parents: diff changeset	37 private:
a61af66fc99e Initial load duke parents: diff changeset	38 char** _meta_package_names;
a61af66fc99e Initial load duke parents: diff changeset	39 int _num_meta_package_names;
a61af66fc99e Initial load duke parents: diff changeset	40 public:
a61af66fc99e Initial load duke parents: diff changeset	41 MetaIndex(char** meta_package_names, int num_meta_package_names);
a61af66fc99e Initial load duke parents: diff changeset	42 ~MetaIndex();
a61af66fc99e Initial load duke parents: diff changeset	43 bool may_contain(const char* class_name);
a61af66fc99e Initial load duke parents: diff changeset	44 };
a61af66fc99e Initial load duke parents: diff changeset	45
a61af66fc99e Initial load duke parents: diff changeset	46
a61af66fc99e Initial load duke parents: diff changeset	47 // Class path entry (directory or zip file)
a61af66fc99e Initial load duke parents: diff changeset	48
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 2426 diff changeset	49 class ClassPathEntry: public CHeapObj<mtClass> {
0 a61af66fc99e Initial load duke parents: diff changeset	50 private:
a61af66fc99e Initial load duke parents: diff changeset	51 ClassPathEntry* _next;
a61af66fc99e Initial load duke parents: diff changeset	52 public:
a61af66fc99e Initial load duke parents: diff changeset	53 // Next entry in class path
a61af66fc99e Initial load duke parents: diff changeset	54 ClassPathEntry* next() { return _next; }
a61af66fc99e Initial load duke parents: diff changeset	55 void set_next(ClassPathEntry* next) {
a61af66fc99e Initial load duke parents: diff changeset	56 // may have unlocked readers, so write atomically.
a61af66fc99e Initial load duke parents: diff changeset	57 OrderAccess::release_store_ptr(&_next, next);
a61af66fc99e Initial load duke parents: diff changeset	58 }
a61af66fc99e Initial load duke parents: diff changeset	59 virtual bool is_jar_file() = 0;
a61af66fc99e Initial load duke parents: diff changeset	60 virtual const char* name() = 0;
a61af66fc99e Initial load duke parents: diff changeset	61 virtual bool is_lazy();
a61af66fc99e Initial load duke parents: diff changeset	62 // Constructor
a61af66fc99e Initial load duke parents: diff changeset	63 ClassPathEntry();
a61af66fc99e Initial load duke parents: diff changeset	64 // Attempt to locate file_name through this class path entry.
a61af66fc99e Initial load duke parents: diff changeset	65 // Returns a class file parsing stream if successfull.
12135 7e7dd25666da 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error ccheung parents: 9150 diff changeset	66 virtual ClassFileStream* open_stream(const char* name, TRAPS) = 0;
0 a61af66fc99e Initial load duke parents: diff changeset	67 // Debugging
a61af66fc99e Initial load duke parents: diff changeset	68 NOT_PRODUCT(virtual void compile_the_world(Handle loader, TRAPS) = 0;)
a61af66fc99e Initial load duke parents: diff changeset	69 NOT_PRODUCT(virtual bool is_rt_jar() = 0;)
a61af66fc99e Initial load duke parents: diff changeset	70 };
a61af66fc99e Initial load duke parents: diff changeset	71
a61af66fc99e Initial load duke parents: diff changeset	72
a61af66fc99e Initial load duke parents: diff changeset	73 class ClassPathDirEntry: public ClassPathEntry {
a61af66fc99e Initial load duke parents: diff changeset	74 private:
a61af66fc99e Initial load duke parents: diff changeset	75 char* _dir; // Name of directory
a61af66fc99e Initial load duke parents: diff changeset	76 public:
a61af66fc99e Initial load duke parents: diff changeset	77 bool is_jar_file() { return false; }
a61af66fc99e Initial load duke parents: diff changeset	78 const char* name() { return _dir; }
a61af66fc99e Initial load duke parents: diff changeset	79 ClassPathDirEntry(char* dir);
12135 7e7dd25666da 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error ccheung parents: 9150 diff changeset	80 ClassFileStream* open_stream(const char* name, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	81 // Debugging
a61af66fc99e Initial load duke parents: diff changeset	82 NOT_PRODUCT(void compile_the_world(Handle loader, TRAPS);)
a61af66fc99e Initial load duke parents: diff changeset	83 NOT_PRODUCT(bool is_rt_jar();)
a61af66fc99e Initial load duke parents: diff changeset	84 };
a61af66fc99e Initial load duke parents: diff changeset	85
a61af66fc99e Initial load duke parents: diff changeset	86
a61af66fc99e Initial load duke parents: diff changeset	87 // Type definitions for zip file and zip file entry
a61af66fc99e Initial load duke parents: diff changeset	88 typedef void* jzfile;
a61af66fc99e Initial load duke parents: diff changeset	89 typedef struct {
a61af66fc99e Initial load duke parents: diff changeset	90 char name; / entry name */
a61af66fc99e Initial load duke parents: diff changeset	91 jlong time; /* modification time */
a61af66fc99e Initial load duke parents: diff changeset	92 jlong size; /* size of uncompressed data */
a61af66fc99e Initial load duke parents: diff changeset	93 jlong csize; /* size of compressed data (zero if uncompressed) */
a61af66fc99e Initial load duke parents: diff changeset	94 jint crc; /* crc of uncompressed data */
a61af66fc99e Initial load duke parents: diff changeset	95 char comment; / optional zip file comment */
a61af66fc99e Initial load duke parents: diff changeset	96 jbyte extra; / optional extra data */
a61af66fc99e Initial load duke parents: diff changeset	97 jlong pos; /* position of LOC header (if negative) or data */
a61af66fc99e Initial load duke parents: diff changeset	98 } jzentry;
a61af66fc99e Initial load duke parents: diff changeset	99
a61af66fc99e Initial load duke parents: diff changeset	100
a61af66fc99e Initial load duke parents: diff changeset	101 class ClassPathZipEntry: public ClassPathEntry {
a61af66fc99e Initial load duke parents: diff changeset	102 private:
a61af66fc99e Initial load duke parents: diff changeset	103 jzfile* _zip; // The zip archive
a61af66fc99e Initial load duke parents: diff changeset	104 char* _zip_name; // Name of zip archive
a61af66fc99e Initial load duke parents: diff changeset	105 public:
a61af66fc99e Initial load duke parents: diff changeset	106 bool is_jar_file() { return true; }
a61af66fc99e Initial load duke parents: diff changeset	107 const char* name() { return _zip_name; }
a61af66fc99e Initial load duke parents: diff changeset	108 ClassPathZipEntry(jzfile* zip, const char* zip_name);
a61af66fc99e Initial load duke parents: diff changeset	109 ~ClassPathZipEntry();
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	110 u1* open_entry(const char* name, jint* filesize, bool nul_terminate, TRAPS);
12135 7e7dd25666da 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error ccheung parents: 9150 diff changeset	111 ClassFileStream* open_stream(const char* name, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	112 void contents_do(void f(const char* name, void* context), void* context);
a61af66fc99e Initial load duke parents: diff changeset	113 // Debugging
a61af66fc99e Initial load duke parents: diff changeset	114 NOT_PRODUCT(void compile_the_world(Handle loader, TRAPS);)
a61af66fc99e Initial load duke parents: diff changeset	115 NOT_PRODUCT(void compile_the_world12(Handle loader, TRAPS);) // JDK 1.2 version
a61af66fc99e Initial load duke parents: diff changeset	116 NOT_PRODUCT(void compile_the_world13(Handle loader, TRAPS);) // JDK 1.3 version
a61af66fc99e Initial load duke parents: diff changeset	117 NOT_PRODUCT(bool is_rt_jar();)
a61af66fc99e Initial load duke parents: diff changeset	118 NOT_PRODUCT(bool is_rt_jar12();)
a61af66fc99e Initial load duke parents: diff changeset	119 NOT_PRODUCT(bool is_rt_jar13();)
a61af66fc99e Initial load duke parents: diff changeset	120 };
a61af66fc99e Initial load duke parents: diff changeset	121
a61af66fc99e Initial load duke parents: diff changeset	122
a61af66fc99e Initial load duke parents: diff changeset	123 // For lazier loading of boot class path entries
a61af66fc99e Initial load duke parents: diff changeset	124 class LazyClassPathEntry: public ClassPathEntry {
a61af66fc99e Initial load duke parents: diff changeset	125 private:
a61af66fc99e Initial load duke parents: diff changeset	126 char* _path; // dir or file
a61af66fc99e Initial load duke parents: diff changeset	127 struct stat _st;
a61af66fc99e Initial load duke parents: diff changeset	128 MetaIndex* _meta_index;
12135 7e7dd25666da 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error ccheung parents: 9150 diff changeset	129 bool _has_error;
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	130 bool _throw_exception;
0 a61af66fc99e Initial load duke parents: diff changeset	131 volatile ClassPathEntry* _resolved_entry;
12135 7e7dd25666da 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error ccheung parents: 9150 diff changeset	132 ClassPathEntry* resolve_entry(TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	133 public:
a61af66fc99e Initial load duke parents: diff changeset	134 bool is_jar_file();
a61af66fc99e Initial load duke parents: diff changeset	135 const char* name() { return _path; }
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	136 LazyClassPathEntry(char* path, const struct stat* st, bool throw_exception);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	137 u1* open_entry(const char* name, jint* filesize, bool nul_terminate, TRAPS);
12135 7e7dd25666da 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error ccheung parents: 9150 diff changeset	138 ClassFileStream* open_stream(const char* name, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	139 void set_meta_index(MetaIndex* meta_index) { _meta_index = meta_index; }
a61af66fc99e Initial load duke parents: diff changeset	140 virtual bool is_lazy();
a61af66fc99e Initial load duke parents: diff changeset	141 // Debugging
a61af66fc99e Initial load duke parents: diff changeset	142 NOT_PRODUCT(void compile_the_world(Handle loader, TRAPS);)
a61af66fc99e Initial load duke parents: diff changeset	143 NOT_PRODUCT(bool is_rt_jar();)
a61af66fc99e Initial load duke parents: diff changeset	144 };
a61af66fc99e Initial load duke parents: diff changeset	145
a61af66fc99e Initial load duke parents: diff changeset	146 class PackageHashtable;
a61af66fc99e Initial load duke parents: diff changeset	147 class PackageInfo;
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	148 class SharedPathsMiscInfo;
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 2426 diff changeset	149 template <MEMFLAGS F> class HashtableBucket;
0 a61af66fc99e Initial load duke parents: diff changeset	150
a61af66fc99e Initial load duke parents: diff changeset	151 class ClassLoader: AllStatic {
a61af66fc99e Initial load duke parents: diff changeset	152 public:
a61af66fc99e Initial load duke parents: diff changeset	153 enum SomeConstants {
a61af66fc99e Initial load duke parents: diff changeset	154 package_hash_table_size = 31 // Number of buckets
a61af66fc99e Initial load duke parents: diff changeset	155 };
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	156 protected:
0 a61af66fc99e Initial load duke parents: diff changeset	157 friend class LazyClassPathEntry;
a61af66fc99e Initial load duke parents: diff changeset	158
a61af66fc99e Initial load duke parents: diff changeset	159 // Performance counters
a61af66fc99e Initial load duke parents: diff changeset	160 static PerfCounter* _perf_accumulated_time;
a61af66fc99e Initial load duke parents: diff changeset	161 static PerfCounter* _perf_classes_inited;
a61af66fc99e Initial load duke parents: diff changeset	162 static PerfCounter* _perf_class_init_time;
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	163 static PerfCounter* _perf_class_init_selftime;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	164 static PerfCounter* _perf_classes_verified;
0 a61af66fc99e Initial load duke parents: diff changeset	165 static PerfCounter* _perf_class_verify_time;
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	166 static PerfCounter* _perf_class_verify_selftime;
0 a61af66fc99e Initial load duke parents: diff changeset	167 static PerfCounter* _perf_classes_linked;
a61af66fc99e Initial load duke parents: diff changeset	168 static PerfCounter* _perf_class_link_time;
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	169 static PerfCounter* _perf_class_link_selftime;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	170 static PerfCounter* _perf_class_parse_time;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	171 static PerfCounter* _perf_class_parse_selftime;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	172 static PerfCounter* _perf_sys_class_lookup_time;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	173 static PerfCounter* _perf_shared_classload_time;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	174 static PerfCounter* _perf_sys_classload_time;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	175 static PerfCounter* _perf_app_classload_time;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	176 static PerfCounter* _perf_app_classload_selftime;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	177 static PerfCounter* _perf_app_classload_count;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	178 static PerfCounter* _perf_define_appclasses;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	179 static PerfCounter* _perf_define_appclass_time;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	180 static PerfCounter* _perf_define_appclass_selftime;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	181 static PerfCounter* _perf_app_classfile_bytes_read;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	182 static PerfCounter* _perf_sys_classfile_bytes_read;
0 a61af66fc99e Initial load duke parents: diff changeset	183
a61af66fc99e Initial load duke parents: diff changeset	184 static PerfCounter* _sync_systemLoaderLockContentionRate;
a61af66fc99e Initial load duke parents: diff changeset	185 static PerfCounter* _sync_nonSystemLoaderLockContentionRate;
a61af66fc99e Initial load duke parents: diff changeset	186 static PerfCounter* _sync_JVMFindLoadedClassLockFreeCounter;
a61af66fc99e Initial load duke parents: diff changeset	187 static PerfCounter* _sync_JVMDefineClassLockFreeCounter;
a61af66fc99e Initial load duke parents: diff changeset	188 static PerfCounter* _sync_JNIDefineClassLockFreeCounter;
a61af66fc99e Initial load duke parents: diff changeset	189
a61af66fc99e Initial load duke parents: diff changeset	190 static PerfCounter* _unsafe_defineClassCallCounter;
a61af66fc99e Initial load duke parents: diff changeset	191 static PerfCounter* _isUnsyncloadClass;
a61af66fc99e Initial load duke parents: diff changeset	192 static PerfCounter* _load_instance_class_failCounter;
a61af66fc99e Initial load duke parents: diff changeset	193
a61af66fc99e Initial load duke parents: diff changeset	194 // First entry in linked list of ClassPathEntry instances
a61af66fc99e Initial load duke parents: diff changeset	195 static ClassPathEntry* _first_entry;
a61af66fc99e Initial load duke parents: diff changeset	196 // Last entry in linked list of ClassPathEntry instances
a61af66fc99e Initial load duke parents: diff changeset	197 static ClassPathEntry* _last_entry;
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	198 static int _num_entries;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	199
0 a61af66fc99e Initial load duke parents: diff changeset	200 // Hash table used to keep track of loaded packages
a61af66fc99e Initial load duke parents: diff changeset	201 static PackageHashtable* _package_hash_table;
a61af66fc99e Initial load duke parents: diff changeset	202 static const char* _shared_archive;
a61af66fc99e Initial load duke parents: diff changeset	203
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	204 // Info used by CDS
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	205 CDS_ONLY(static SharedPathsMiscInfo * _shared_paths_misc_info;)
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	206
0 a61af66fc99e Initial load duke parents: diff changeset	207 // Hash function
a61af66fc99e Initial load duke parents: diff changeset	208 static unsigned int hash(const char *s, int n);
a61af66fc99e Initial load duke parents: diff changeset	209 // Returns the package file name corresponding to the specified package
a61af66fc99e Initial load duke parents: diff changeset	210 // or class name, or null if not found.
a61af66fc99e Initial load duke parents: diff changeset	211 static PackageInfo* lookup_package(const char *pkgname);
a61af66fc99e Initial load duke parents: diff changeset	212 // Adds a new package entry for the specified class or package name and
a61af66fc99e Initial load duke parents: diff changeset	213 // corresponding directory or jar file name.
a61af66fc99e Initial load duke parents: diff changeset	214 static bool add_package(const char *pkgname, int classpath_index, TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	215
a61af66fc99e Initial load duke parents: diff changeset	216 // Initialization
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	217 static void setup_bootstrap_meta_index();
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	218 static void setup_meta_index(const char* meta_index_path, const char* meta_index_dir,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	219 int start_index);
0 a61af66fc99e Initial load duke parents: diff changeset	220 static void setup_bootstrap_search_path();
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	221 static void setup_search_path(char *class_path);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	222
0 a61af66fc99e Initial load duke parents: diff changeset	223 static void load_zip_library();
12135 7e7dd25666da 8020675: invalid jar file in the bootclasspath could lead to jvm fatal error ccheung parents: 9150 diff changeset	224 static ClassPathEntry* create_class_path_entry(char path, const struct stat st,
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	225 bool lazy, bool throw_exception, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	226
a61af66fc99e Initial load duke parents: diff changeset	227 // Canonicalizes path names, so strcmp will work properly. This is mainly
a61af66fc99e Initial load duke parents: diff changeset	228 // to avoid confusing the zip library
a61af66fc99e Initial load duke parents: diff changeset	229 static bool get_canonical_path(char* orig, char* out, int len);
a61af66fc99e Initial load duke parents: diff changeset	230 public:
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	231 static bool update_class_path_entry_list(char *path,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	232 bool check_for_duplicates,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	233 bool throw_exception=true);
0 a61af66fc99e Initial load duke parents: diff changeset	234 static void print_bootclasspath();
a61af66fc99e Initial load duke parents: diff changeset	235
a61af66fc99e Initial load duke parents: diff changeset	236 // Timing
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	237 static PerfCounter* perf_accumulated_time() { return _perf_accumulated_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	238 static PerfCounter* perf_classes_inited() { return _perf_classes_inited; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	239 static PerfCounter* perf_class_init_time() { return _perf_class_init_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	240 static PerfCounter* perf_class_init_selftime() { return _perf_class_init_selftime; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	241 static PerfCounter* perf_classes_verified() { return _perf_classes_verified; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	242 static PerfCounter* perf_class_verify_time() { return _perf_class_verify_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	243 static PerfCounter* perf_class_verify_selftime() { return _perf_class_verify_selftime; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	244 static PerfCounter* perf_classes_linked() { return _perf_classes_linked; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	245 static PerfCounter* perf_class_link_time() { return _perf_class_link_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	246 static PerfCounter* perf_class_link_selftime() { return _perf_class_link_selftime; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	247 static PerfCounter* perf_class_parse_time() { return _perf_class_parse_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	248 static PerfCounter* perf_class_parse_selftime() { return _perf_class_parse_selftime; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	249 static PerfCounter* perf_sys_class_lookup_time() { return _perf_sys_class_lookup_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	250 static PerfCounter* perf_shared_classload_time() { return _perf_shared_classload_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	251 static PerfCounter* perf_sys_classload_time() { return _perf_sys_classload_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	252 static PerfCounter* perf_app_classload_time() { return _perf_app_classload_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	253 static PerfCounter* perf_app_classload_selftime() { return _perf_app_classload_selftime; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	254 static PerfCounter* perf_app_classload_count() { return _perf_app_classload_count; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	255 static PerfCounter* perf_define_appclasses() { return _perf_define_appclasses; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	256 static PerfCounter* perf_define_appclass_time() { return _perf_define_appclass_time; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	257 static PerfCounter* perf_define_appclass_selftime() { return _perf_define_appclass_selftime; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	258 static PerfCounter* perf_app_classfile_bytes_read() { return _perf_app_classfile_bytes_read; }
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	259 static PerfCounter* perf_sys_classfile_bytes_read() { return _perf_sys_classfile_bytes_read; }
0 a61af66fc99e Initial load duke parents: diff changeset	260
a61af66fc99e Initial load duke parents: diff changeset	261 // Record how often system loader lock object is contended
a61af66fc99e Initial load duke parents: diff changeset	262 static PerfCounter* sync_systemLoaderLockContentionRate() {
a61af66fc99e Initial load duke parents: diff changeset	263 return _sync_systemLoaderLockContentionRate;
a61af66fc99e Initial load duke parents: diff changeset	264 }
a61af66fc99e Initial load duke parents: diff changeset	265
a61af66fc99e Initial load duke parents: diff changeset	266 // Record how often non system loader lock object is contended
a61af66fc99e Initial load duke parents: diff changeset	267 static PerfCounter* sync_nonSystemLoaderLockContentionRate() {
a61af66fc99e Initial load duke parents: diff changeset	268 return _sync_nonSystemLoaderLockContentionRate;
a61af66fc99e Initial load duke parents: diff changeset	269 }
a61af66fc99e Initial load duke parents: diff changeset	270
a61af66fc99e Initial load duke parents: diff changeset	271 // Record how many calls to JVM_FindLoadedClass w/o holding a lock
a61af66fc99e Initial load duke parents: diff changeset	272 static PerfCounter* sync_JVMFindLoadedClassLockFreeCounter() {
a61af66fc99e Initial load duke parents: diff changeset	273 return _sync_JVMFindLoadedClassLockFreeCounter;
a61af66fc99e Initial load duke parents: diff changeset	274 }
a61af66fc99e Initial load duke parents: diff changeset	275
a61af66fc99e Initial load duke parents: diff changeset	276 // Record how many calls to JVM_DefineClass w/o holding a lock
a61af66fc99e Initial load duke parents: diff changeset	277 static PerfCounter* sync_JVMDefineClassLockFreeCounter() {
a61af66fc99e Initial load duke parents: diff changeset	278 return _sync_JVMDefineClassLockFreeCounter;
a61af66fc99e Initial load duke parents: diff changeset	279 }
a61af66fc99e Initial load duke parents: diff changeset	280
a61af66fc99e Initial load duke parents: diff changeset	281 // Record how many calls to jni_DefineClass w/o holding a lock
a61af66fc99e Initial load duke parents: diff changeset	282 static PerfCounter* sync_JNIDefineClassLockFreeCounter() {
a61af66fc99e Initial load duke parents: diff changeset	283 return _sync_JNIDefineClassLockFreeCounter;
a61af66fc99e Initial load duke parents: diff changeset	284 }
a61af66fc99e Initial load duke parents: diff changeset	285
a61af66fc99e Initial load duke parents: diff changeset	286 // Record how many calls to Unsafe_DefineClass
a61af66fc99e Initial load duke parents: diff changeset	287 static PerfCounter* unsafe_defineClassCallCounter() {
a61af66fc99e Initial load duke parents: diff changeset	288 return _unsafe_defineClassCallCounter;
a61af66fc99e Initial load duke parents: diff changeset	289 }
a61af66fc99e Initial load duke parents: diff changeset	290
a61af66fc99e Initial load duke parents: diff changeset	291 // Record how many times SystemDictionary::load_instance_class call
a61af66fc99e Initial load duke parents: diff changeset	292 // fails with linkageError when Unsyncloadclass flag is set.
a61af66fc99e Initial load duke parents: diff changeset	293 static PerfCounter* load_instance_class_failCounter() {
a61af66fc99e Initial load duke parents: diff changeset	294 return _load_instance_class_failCounter;
a61af66fc99e Initial load duke parents: diff changeset	295 }
a61af66fc99e Initial load duke parents: diff changeset	296
a61af66fc99e Initial load duke parents: diff changeset	297 // Load individual .class file
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2139 diff changeset	298 static instanceKlassHandle load_classfile(Symbol* h_name, TRAPS);
0 a61af66fc99e Initial load duke parents: diff changeset	299
a61af66fc99e Initial load duke parents: diff changeset	300 // If the specified package has been loaded by the system, then returns
a61af66fc99e Initial load duke parents: diff changeset	301 // the name of the directory or ZIP file that the package was loaded from.
a61af66fc99e Initial load duke parents: diff changeset	302 // Returns null if the package was not loaded.
a61af66fc99e Initial load duke parents: diff changeset	303 // Note: The specified name can either be the name of a class or package.
a61af66fc99e Initial load duke parents: diff changeset	304 // If a package name is specified, then it must be "/"-separator and also
a61af66fc99e Initial load duke parents: diff changeset	305 // end with a trailing "/".
a61af66fc99e Initial load duke parents: diff changeset	306 static oop get_system_package(const char* name, TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	307
a61af66fc99e Initial load duke parents: diff changeset	308 // Returns an array of Java strings representing all of the currently
a61af66fc99e Initial load duke parents: diff changeset	309 // loaded system packages.
a61af66fc99e Initial load duke parents: diff changeset	310 // Note: The package names returned are "/"-separated and end with a
a61af66fc99e Initial load duke parents: diff changeset	311 // trailing "/".
a61af66fc99e Initial load duke parents: diff changeset	312 static objArrayOop get_system_packages(TRAPS);
a61af66fc99e Initial load duke parents: diff changeset	313
a61af66fc99e Initial load duke parents: diff changeset	314 // Initialization
a61af66fc99e Initial load duke parents: diff changeset	315 static void initialize();
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	316 CDS_ONLY(static void initialize_shared_path();)
0 a61af66fc99e Initial load duke parents: diff changeset	317 static void create_package_info_table();
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 2426 diff changeset	318 static void create_package_info_table(HashtableBucket<mtClass> *t, int length,
0 a61af66fc99e Initial load duke parents: diff changeset	319 int number_of_entries);
a61af66fc99e Initial load duke parents: diff changeset	320 static int compute_Object_vtable();
a61af66fc99e Initial load duke parents: diff changeset	321
a61af66fc99e Initial load duke parents: diff changeset	322 static ClassPathEntry* classpath_entry(int n) {
a61af66fc99e Initial load duke parents: diff changeset	323 ClassPathEntry* e = ClassLoader::_first_entry;
a61af66fc99e Initial load duke parents: diff changeset	324 while (--n >= 0) {
a61af66fc99e Initial load duke parents: diff changeset	325 assert(e != NULL, "Not that many classpath entries.");
a61af66fc99e Initial load duke parents: diff changeset	326 e = e->next();
a61af66fc99e Initial load duke parents: diff changeset	327 }
a61af66fc99e Initial load duke parents: diff changeset	328 return e;
a61af66fc99e Initial load duke parents: diff changeset	329 }
a61af66fc99e Initial load duke parents: diff changeset	330
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	331 #if INCLUDE_CDS
0 a61af66fc99e Initial load duke parents: diff changeset	332 // Sharing dump and restore
a61af66fc99e Initial load duke parents: diff changeset	333 static void copy_package_info_buckets(char** top, char* end);
a61af66fc99e Initial load duke parents: diff changeset	334 static void copy_package_info_table(char** top, char* end);
a61af66fc99e Initial load duke parents: diff changeset	335
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	336 static void check_shared_classpath(const char *path);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	337 static void finalize_shared_paths_misc_info();
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	338 static int get_shared_paths_misc_info_size();
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	339 static void* get_shared_paths_misc_info();
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	340 static bool check_shared_paths_misc_info(void* info, int size);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	341 static void exit_with_path_failure(const char* error, const char* message);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	342 #endif
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	343
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	344 static void trace_class_path(const char* msg, const char* name = NULL);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	345
0 a61af66fc99e Initial load duke parents: diff changeset	346 // VM monitoring and management support
a61af66fc99e Initial load duke parents: diff changeset	347 static jlong classloader_time_ms();
a61af66fc99e Initial load duke parents: diff changeset	348 static jlong class_method_total_size();
a61af66fc99e Initial load duke parents: diff changeset	349 static jlong class_init_count();
a61af66fc99e Initial load duke parents: diff changeset	350 static jlong class_init_time_ms();
a61af66fc99e Initial load duke parents: diff changeset	351 static jlong class_verify_time_ms();
a61af66fc99e Initial load duke parents: diff changeset	352 static jlong class_link_count();
a61af66fc99e Initial load duke parents: diff changeset	353 static jlong class_link_time_ms();
a61af66fc99e Initial load duke parents: diff changeset	354
a61af66fc99e Initial load duke parents: diff changeset	355 // indicates if class path already contains a entry (exact match by name)
a61af66fc99e Initial load duke parents: diff changeset	356 static bool contains_entry(ClassPathEntry* entry);
a61af66fc99e Initial load duke parents: diff changeset	357
a61af66fc99e Initial load duke parents: diff changeset	358 // adds a class path list
a61af66fc99e Initial load duke parents: diff changeset	359 static void add_to_list(ClassPathEntry* new_entry);
a61af66fc99e Initial load duke parents: diff changeset	360
a61af66fc99e Initial load duke parents: diff changeset	361 // creates a class path zip entry (returns NULL if JAR file cannot be opened)
a61af66fc99e Initial load duke parents: diff changeset	362 static ClassPathZipEntry* create_class_path_zip_entry(const char *apath);
a61af66fc99e Initial load duke parents: diff changeset	363
a61af66fc99e Initial load duke parents: diff changeset	364 // Debugging
a61af66fc99e Initial load duke parents: diff changeset	365 static void verify() PRODUCT_RETURN;
a61af66fc99e Initial load duke parents: diff changeset	366
a61af66fc99e Initial load duke parents: diff changeset	367 // Force compilation of all methods in all classes in bootstrap class path (stress test)
a61af66fc99e Initial load duke parents: diff changeset	368 #ifndef PRODUCT
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 12135 diff changeset	369 protected:
9150 b8b081e53312 8011933: add number of classes, methods and time spent to CompileTheWorld twisti parents: 6842 diff changeset	370 static int _compile_the_world_class_counter;
b8b081e53312 8011933: add number of classes, methods and time spent to CompileTheWorld twisti parents: 6842 diff changeset	371 static int _compile_the_world_method_counter;
0 a61af66fc99e Initial load duke parents: diff changeset	372 public:
a61af66fc99e Initial load duke parents: diff changeset	373 static void compile_the_world();
a61af66fc99e Initial load duke parents: diff changeset	374 static void compile_the_world_in(char* name, Handle loader, TRAPS);
9150 b8b081e53312 8011933: add number of classes, methods and time spent to CompileTheWorld twisti parents: 6842 diff changeset	375 static int compile_the_world_counter() { return _compile_the_world_class_counter; }
0 a61af66fc99e Initial load duke parents: diff changeset	376 #endif //PRODUCT
a61af66fc99e Initial load duke parents: diff changeset	377 };
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	378
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	379 // PerfClassTraceTime is used to measure time for class loading related events.
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	380 // This class tracks cumulative time and exclusive time for specific event types.
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	381 // During the execution of one event, other event types (e.g. class loading and
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	382 // resolution) as well as recursive calls of the same event type could happen.
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	383 // Only one elapsed timer (cumulative) and one thread-local self timer (exclusive)
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	384 // (i.e. only one event type) are active at a time even multiple PerfClassTraceTime
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	385 // instances have been created as multiple events are happening.
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	386 class PerfClassTraceTime {
2139 75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	387 public:
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	388 enum {
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	389 CLASS_LOAD = 0,
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	390 PARSE_CLASS = 1,
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	391 CLASS_LINK = 2,
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	392 CLASS_VERIFY = 3,
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	393 CLASS_CLINIT = 4,
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	394 DEFINE_CLASS = 5,
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	395 EVENT_TYPE_COUNT = 6
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	396 };
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	397 protected:
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	398 // _t tracks time from initialization to destruction of this timer instance
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	399 // including time for all other event types, and recursive calls of this type.
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	400 // When a timer is called recursively, the elapsedTimer _t would not be used.
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	401 elapsedTimer _t;
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	402 PerfLongCounter* _timep;
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	403 PerfLongCounter* _selftimep;
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	404 PerfLongCounter* _eventp;
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	405 // pointer to thread-local recursion counter and timer array
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	406 // The thread_local timers track cumulative time for specific event types
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	407 // exclusive of time for other event types, but including recursive calls
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	408 // of the same type.
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	409 int* _recursion_counters;
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	410 elapsedTimer* _timers;
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	411 int _event_type;
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	412 int _prev_active_event;
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	413
2139 75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	414 public:
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	415
2139 75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	416 inline PerfClassTraceTime(PerfLongCounter* timep, /* counter incremented with inclusive time */
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	417 PerfLongCounter* selftimep, /* counter incremented with exclusive time */
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	418 PerfLongCounter* eventp, /* event counter */
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	419 int* recursion_counters, /* thread-local recursion counter array */
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	420 elapsedTimer* timers, /* thread-local timer array */
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	421 int type /* event type */ ) :
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	422 _timep(timep), _selftimep(selftimep), _eventp(eventp), _recursion_counters(recursion_counters), _timers(timers), _event_type(type) {
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	423 initialize();
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	424 }
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	425
2139 75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	426 inline PerfClassTraceTime(PerfLongCounter* timep, /* counter incremented with inclusive time */
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	427 elapsedTimer* timers, /* thread-local timer array */
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	428 int type /* event type */ ) :
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	429 _timep(timep), _selftimep(NULL), _eventp(NULL), _recursion_counters(NULL), _timers(timers), _event_type(type) {
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	430 initialize();
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	431 }
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	432
2139 75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	433 inline void suspend() { _t.stop(); _timers[_event_type].stop(); }
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	434 inline void resume() { _t.start(); _timers[_event_type].start(); }
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	435
2139 75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	436 ~PerfClassTraceTime();
75efcee5ac47 6966589: hs16-b08 causes java.lang.StackOverflowError minqi parents: 1972 diff changeset	437 void initialize();
875 6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	438 };
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement mchung parents: 0 diff changeset	439
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	440 #endif // SHARE_VM_CLASSFILE_CLASSLOADER_HPP

Mercurial > hg > truffle

annotate src/share/vm/classfile/classLoader.hpp @ 20375:6e0cb14ce59b