hotspot/src/share/vm/classfile/classLoader.cpp
author never
Fri, 11 Feb 2011 12:05:43 -0800
changeset 8327 f5a13a17d5f3
parent 8076 96d498ec7ae1
child 8497 aa7fd2c3caa9
permissions -rw-r--r--
7018506: CTW swallowing OOMs after symbol changes Reviewed-by: kvn, iveresov, coleenp
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
5924
dc9d04930c82 6965184: possible races in make_not_entrant_or_zombie
never
parents: 5547
diff changeset
     2
 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     4
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
489c9b5090e2 Initial load
duke
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
489c9b5090e2 Initial load
duke
parents:
diff changeset
     7
 * published by the Free Software Foundation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     8
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
489c9b5090e2 Initial load
duke
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
489c9b5090e2 Initial load
duke
parents:
diff changeset
    13
 * accompanied this code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
    14
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
489c9b5090e2 Initial load
duke
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    18
 *
5547
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 4736
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 4736
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 4736
diff changeset
    21
 * questions.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    25
#include "precompiled.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    26
#include "classfile/classFileParser.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    27
#include "classfile/classFileStream.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    28
#include "classfile/classLoader.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    29
#include "classfile/javaClasses.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    30
#include "classfile/systemDictionary.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    31
#include "classfile/vmSymbols.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    32
#include "compiler/compileBroker.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    33
#include "gc_interface/collectedHeap.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    34
#include "interpreter/bytecodeStream.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    35
#include "interpreter/oopMapCache.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    36
#include "memory/allocation.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    37
#include "memory/generation.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    38
#include "memory/oopFactory.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    39
#include "memory/universe.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    40
#include "oops/constantPoolKlass.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    41
#include "oops/instanceKlass.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    42
#include "oops/instanceRefKlass.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    43
#include "oops/oop.inline.hpp"
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
    44
#include "oops/symbol.hpp"
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    45
#include "prims/jvm_misc.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    46
#include "runtime/arguments.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    47
#include "runtime/compilationPolicy.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    48
#include "runtime/fprofiler.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    49
#include "runtime/handles.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    50
#include "runtime/handles.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    51
#include "runtime/init.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    52
#include "runtime/interfaceSupport.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    53
#include "runtime/java.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    54
#include "runtime/javaCalls.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    55
#include "runtime/threadCritical.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    56
#include "runtime/timer.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    57
#include "services/management.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    58
#include "services/threadService.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    59
#include "utilities/events.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    60
#include "utilities/hashtable.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    61
#include "utilities/hashtable.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    62
#ifdef TARGET_OS_FAMILY_linux
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    63
# include "os_linux.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    64
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    65
#ifdef TARGET_OS_FAMILY_solaris
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    66
# include "os_solaris.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    67
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    68
#ifdef TARGET_OS_FAMILY_windows
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    69
# include "os_windows.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6453
diff changeset
    70
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    71
489c9b5090e2 Initial load
duke
parents:
diff changeset
    72
489c9b5090e2 Initial load
duke
parents:
diff changeset
    73
// Entry points in zip.dll for loading zip/jar file entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
    74
489c9b5090e2 Initial load
duke
parents:
diff changeset
    75
typedef void * * (JNICALL *ZipOpen_t)(const char *name, char **pmsg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    76
typedef void (JNICALL *ZipClose_t)(jzfile *zip);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    77
typedef jzentry* (JNICALL *FindEntry_t)(jzfile *zip, const char *name, jint *sizeP, jint *nameLen);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    78
typedef jboolean (JNICALL *ReadEntry_t)(jzfile *zip, jzentry *entry, unsigned char *buf, char *namebuf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    79
typedef jboolean (JNICALL *ReadMappedEntry_t)(jzfile *zip, jzentry *entry, unsigned char **buf, char *namebuf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    80
typedef jzentry* (JNICALL *GetNextEntry_t)(jzfile *zip, jint n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
489c9b5090e2 Initial load
duke
parents:
diff changeset
    82
static ZipOpen_t         ZipOpen            = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    83
static ZipClose_t        ZipClose           = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    84
static FindEntry_t       FindEntry          = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
static ReadEntry_t       ReadEntry          = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
static ReadMappedEntry_t ReadMappedEntry    = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
static GetNextEntry_t    GetNextEntry       = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    88
static canonicalize_fn_t CanonicalizeEntry  = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    89
489c9b5090e2 Initial load
duke
parents:
diff changeset
    90
// Globals
489c9b5090e2 Initial load
duke
parents:
diff changeset
    91
489c9b5090e2 Initial load
duke
parents:
diff changeset
    92
PerfCounter*    ClassLoader::_perf_accumulated_time = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    93
PerfCounter*    ClassLoader::_perf_classes_inited = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    94
PerfCounter*    ClassLoader::_perf_class_init_time = NULL;
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
    95
PerfCounter*    ClassLoader::_perf_class_init_selftime = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
    96
PerfCounter*    ClassLoader::_perf_classes_verified = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    97
PerfCounter*    ClassLoader::_perf_class_verify_time = NULL;
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
    98
PerfCounter*    ClassLoader::_perf_class_verify_selftime = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    99
PerfCounter*    ClassLoader::_perf_classes_linked = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   100
PerfCounter*    ClassLoader::_perf_class_link_time = NULL;
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   101
PerfCounter*    ClassLoader::_perf_class_link_selftime = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   102
PerfCounter*    ClassLoader::_perf_class_parse_time = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   103
PerfCounter*    ClassLoader::_perf_class_parse_selftime = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   104
PerfCounter*    ClassLoader::_perf_sys_class_lookup_time = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   105
PerfCounter*    ClassLoader::_perf_shared_classload_time = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   106
PerfCounter*    ClassLoader::_perf_sys_classload_time = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   107
PerfCounter*    ClassLoader::_perf_app_classload_time = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   108
PerfCounter*    ClassLoader::_perf_app_classload_selftime = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   109
PerfCounter*    ClassLoader::_perf_app_classload_count = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   110
PerfCounter*    ClassLoader::_perf_define_appclasses = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   111
PerfCounter*    ClassLoader::_perf_define_appclass_time = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   112
PerfCounter*    ClassLoader::_perf_define_appclass_selftime = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   113
PerfCounter*    ClassLoader::_perf_app_classfile_bytes_read = NULL;
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   114
PerfCounter*    ClassLoader::_perf_sys_classfile_bytes_read = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   115
PerfCounter*    ClassLoader::_sync_systemLoaderLockContentionRate = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   116
PerfCounter*    ClassLoader::_sync_nonSystemLoaderLockContentionRate = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   117
PerfCounter*    ClassLoader::_sync_JVMFindLoadedClassLockFreeCounter = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   118
PerfCounter*    ClassLoader::_sync_JVMDefineClassLockFreeCounter = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   119
PerfCounter*    ClassLoader::_sync_JNIDefineClassLockFreeCounter = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   120
PerfCounter*    ClassLoader::_unsafe_defineClassCallCounter = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   121
PerfCounter*    ClassLoader::_isUnsyncloadClass = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   122
PerfCounter*    ClassLoader::_load_instance_class_failCounter = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   123
489c9b5090e2 Initial load
duke
parents:
diff changeset
   124
ClassPathEntry* ClassLoader::_first_entry         = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   125
ClassPathEntry* ClassLoader::_last_entry          = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   126
PackageHashtable* ClassLoader::_package_hash_table = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   127
489c9b5090e2 Initial load
duke
parents:
diff changeset
   128
// helper routines
489c9b5090e2 Initial load
duke
parents:
diff changeset
   129
bool string_starts_with(const char* str, const char* str_to_find) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   130
  size_t str_len = strlen(str);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   131
  size_t str_to_find_len = strlen(str_to_find);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   132
  if (str_to_find_len > str_len) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   133
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   134
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   135
  return (strncmp(str, str_to_find, str_to_find_len) == 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   136
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   137
489c9b5090e2 Initial load
duke
parents:
diff changeset
   138
bool string_ends_with(const char* str, const char* str_to_find) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   139
  size_t str_len = strlen(str);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   140
  size_t str_to_find_len = strlen(str_to_find);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   141
  if (str_to_find_len > str_len) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   142
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   143
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   144
  return (strncmp(str + (str_len - str_to_find_len), str_to_find, str_to_find_len) == 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   145
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   146
489c9b5090e2 Initial load
duke
parents:
diff changeset
   147
489c9b5090e2 Initial load
duke
parents:
diff changeset
   148
MetaIndex::MetaIndex(char** meta_package_names, int num_meta_package_names) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   149
  if (num_meta_package_names == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   150
    _meta_package_names = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   151
    _num_meta_package_names = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   152
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   153
    _meta_package_names = NEW_C_HEAP_ARRAY(char*, num_meta_package_names);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   154
    _num_meta_package_names = num_meta_package_names;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   155
    memcpy(_meta_package_names, meta_package_names, num_meta_package_names * sizeof(char*));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   156
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   157
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   158
489c9b5090e2 Initial load
duke
parents:
diff changeset
   159
489c9b5090e2 Initial load
duke
parents:
diff changeset
   160
MetaIndex::~MetaIndex() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   161
  FREE_C_HEAP_ARRAY(char*, _meta_package_names);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   162
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   163
489c9b5090e2 Initial load
duke
parents:
diff changeset
   164
489c9b5090e2 Initial load
duke
parents:
diff changeset
   165
bool MetaIndex::may_contain(const char* class_name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   166
  if ( _num_meta_package_names == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   167
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   168
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   169
  size_t class_name_len = strlen(class_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   170
  for (int i = 0; i < _num_meta_package_names; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   171
    char* pkg = _meta_package_names[i];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   172
    size_t pkg_len = strlen(pkg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   173
    size_t min_len = MIN2(class_name_len, pkg_len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   174
    if (!strncmp(class_name, pkg, min_len)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   175
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   176
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   177
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   178
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   179
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   180
489c9b5090e2 Initial load
duke
parents:
diff changeset
   181
489c9b5090e2 Initial load
duke
parents:
diff changeset
   182
ClassPathEntry::ClassPathEntry() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   183
  set_next(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   184
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   185
489c9b5090e2 Initial load
duke
parents:
diff changeset
   186
489c9b5090e2 Initial load
duke
parents:
diff changeset
   187
bool ClassPathEntry::is_lazy() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   188
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   189
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   190
489c9b5090e2 Initial load
duke
parents:
diff changeset
   191
ClassPathDirEntry::ClassPathDirEntry(char* dir) : ClassPathEntry() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   192
  _dir = NEW_C_HEAP_ARRAY(char, strlen(dir)+1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   193
  strcpy(_dir, dir);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   194
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   195
489c9b5090e2 Initial load
duke
parents:
diff changeset
   196
489c9b5090e2 Initial load
duke
parents:
diff changeset
   197
ClassFileStream* ClassPathDirEntry::open_stream(const char* name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   198
  // construct full path name
489c9b5090e2 Initial load
duke
parents:
diff changeset
   199
  char path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   200
  if (jio_snprintf(path, sizeof(path), "%s%s%s", _dir, os::file_separator(), name) == -1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   201
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   202
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   203
  // check if file exists
489c9b5090e2 Initial load
duke
parents:
diff changeset
   204
  struct stat st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   205
  if (os::stat(path, &st) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   206
    // found file, open it
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   207
    int file_handle = os::open(path, 0, 0);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   208
    if (file_handle != -1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   209
      // read contents into resource array
489c9b5090e2 Initial load
duke
parents:
diff changeset
   210
      u1* buffer = NEW_RESOURCE_ARRAY(u1, st.st_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   211
      size_t num_read = os::read(file_handle, (char*) buffer, st.st_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   212
      // close file
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   213
      os::close(file_handle);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   214
      // construct ClassFileStream
489c9b5090e2 Initial load
duke
parents:
diff changeset
   215
      if (num_read == (size_t)st.st_size) {
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   216
        if (UsePerfData) {
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   217
          ClassLoader::perf_sys_classfile_bytes_read()->inc(num_read);
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   218
        }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   219
        return new ClassFileStream(buffer, st.st_size, _dir);    // Resource allocated
489c9b5090e2 Initial load
duke
parents:
diff changeset
   220
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   221
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   222
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   223
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   224
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   225
489c9b5090e2 Initial load
duke
parents:
diff changeset
   226
489c9b5090e2 Initial load
duke
parents:
diff changeset
   227
ClassPathZipEntry::ClassPathZipEntry(jzfile* zip, const char* zip_name) : ClassPathEntry() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   228
  _zip = zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   229
  _zip_name = NEW_C_HEAP_ARRAY(char, strlen(zip_name)+1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   230
  strcpy(_zip_name, zip_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   231
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   232
489c9b5090e2 Initial load
duke
parents:
diff changeset
   233
ClassPathZipEntry::~ClassPathZipEntry() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   234
  if (ZipClose != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   235
    (*ZipClose)(_zip);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   236
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   237
  FREE_C_HEAP_ARRAY(char, _zip_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   238
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   239
489c9b5090e2 Initial load
duke
parents:
diff changeset
   240
ClassFileStream* ClassPathZipEntry::open_stream(const char* name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   241
  // enable call to C land
489c9b5090e2 Initial load
duke
parents:
diff changeset
   242
  JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   243
  ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   244
  // check whether zip archive contains name
489c9b5090e2 Initial load
duke
parents:
diff changeset
   245
  jint filesize, name_len;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   246
  jzentry* entry = (*FindEntry)(_zip, name, &filesize, &name_len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   247
  if (entry == NULL) return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   248
  u1* buffer;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   249
  char name_buf[128];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   250
  char* filename;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   251
  if (name_len < 128) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   252
    filename = name_buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   253
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   254
    filename = NEW_RESOURCE_ARRAY(char, name_len + 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   255
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   256
489c9b5090e2 Initial load
duke
parents:
diff changeset
   257
  // file found, get pointer to class in mmaped jar file.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   258
  if (ReadMappedEntry == NULL ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
   259
      !(*ReadMappedEntry)(_zip, entry, &buffer, filename)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   260
      // mmaped access not available, perhaps due to compression,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   261
      // read contents into resource array
489c9b5090e2 Initial load
duke
parents:
diff changeset
   262
      buffer     = NEW_RESOURCE_ARRAY(u1, filesize);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   263
      if (!(*ReadEntry)(_zip, entry, buffer, filename)) return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   264
  }
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   265
  if (UsePerfData) {
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   266
    ClassLoader::perf_sys_classfile_bytes_read()->inc(filesize);
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   267
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   268
  // return result
489c9b5090e2 Initial load
duke
parents:
diff changeset
   269
  return new ClassFileStream(buffer, filesize, _zip_name);    // Resource allocated
489c9b5090e2 Initial load
duke
parents:
diff changeset
   270
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   271
489c9b5090e2 Initial load
duke
parents:
diff changeset
   272
// invoke function for each entry in the zip file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   273
void ClassPathZipEntry::contents_do(void f(const char* name, void* context), void* context) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   274
  JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   275
  HandleMark  handle_mark(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   276
  ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   277
  for (int n = 0; ; n++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   278
    jzentry * ze = ((*GetNextEntry)(_zip, n));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   279
    if (ze == NULL) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   280
    (*f)(ze->name, context);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   281
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   282
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   283
489c9b5090e2 Initial load
duke
parents:
diff changeset
   284
LazyClassPathEntry::LazyClassPathEntry(char* path, struct stat st) : ClassPathEntry() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   285
  _path = strdup(path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   286
  _st = st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   287
  _meta_index = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   288
  _resolved_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   289
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   290
489c9b5090e2 Initial load
duke
parents:
diff changeset
   291
bool LazyClassPathEntry::is_jar_file() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   292
  return ((_st.st_mode & S_IFREG) == S_IFREG);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   293
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   294
489c9b5090e2 Initial load
duke
parents:
diff changeset
   295
ClassPathEntry* LazyClassPathEntry::resolve_entry() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   296
  if (_resolved_entry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   297
    return (ClassPathEntry*) _resolved_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   298
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   299
  ClassPathEntry* new_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   300
  ClassLoader::create_class_path_entry(_path, _st, &new_entry, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   301
  assert(new_entry != NULL, "earlier code should have caught this");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   302
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   303
    ThreadCritical tc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   304
    if (_resolved_entry == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   305
      _resolved_entry = new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   306
      return new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   307
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   308
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   309
  assert(_resolved_entry != NULL, "bug in MT-safe resolution logic");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   310
  delete new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   311
  return (ClassPathEntry*) _resolved_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   312
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   313
489c9b5090e2 Initial load
duke
parents:
diff changeset
   314
ClassFileStream* LazyClassPathEntry::open_stream(const char* name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   315
  if (_meta_index != NULL &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   316
      !_meta_index->may_contain(name)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   317
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   318
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   319
  return resolve_entry()->open_stream(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   320
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   321
489c9b5090e2 Initial load
duke
parents:
diff changeset
   322
bool LazyClassPathEntry::is_lazy() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   323
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   324
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   325
489c9b5090e2 Initial load
duke
parents:
diff changeset
   326
static void print_meta_index(LazyClassPathEntry* entry,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   327
                             GrowableArray<char*>& meta_packages) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   328
  tty->print("[Meta index for %s=", entry->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   329
  for (int i = 0; i < meta_packages.length(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   330
    if (i > 0) tty->print(" ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   331
    tty->print(meta_packages.at(i));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   332
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   333
  tty->print_cr("]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   334
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   335
489c9b5090e2 Initial load
duke
parents:
diff changeset
   336
489c9b5090e2 Initial load
duke
parents:
diff changeset
   337
void ClassLoader::setup_meta_index() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   338
  // Set up meta index which allows us to open boot jars lazily if
489c9b5090e2 Initial load
duke
parents:
diff changeset
   339
  // class data sharing is enabled
489c9b5090e2 Initial load
duke
parents:
diff changeset
   340
  const char* known_version = "% VERSION 2";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   341
  char* meta_index_path = Arguments::get_meta_index_path();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   342
  char* meta_index_dir  = Arguments::get_meta_index_dir();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   343
  FILE* file = fopen(meta_index_path, "r");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   344
  int line_no = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   345
  if (file != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   346
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   347
    LazyClassPathEntry* cur_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   348
    GrowableArray<char*> boot_class_path_packages(10);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   349
    char package_name[256];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   350
    bool skipCurrentJar = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   351
    while (fgets(package_name, sizeof(package_name), file) != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   352
      ++line_no;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   353
      // Remove trailing newline
489c9b5090e2 Initial load
duke
parents:
diff changeset
   354
      package_name[strlen(package_name) - 1] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   355
      switch(package_name[0]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   356
        case '%':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   357
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   358
          if ((line_no == 1) && (strcmp(package_name, known_version) != 0)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   359
            if (TraceClassLoading && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   360
              tty->print("[Unsupported meta index version]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   361
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   362
            fclose(file);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   363
            return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   364
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   365
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
        // These directives indicate jar files which contain only
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
        // classes, only non-classfile resources, or a combination of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
        // the two. See src/share/classes/sun/misc/MetaIndex.java and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
        // make/tools/MetaIndex/BuildMetaIndex.java in the J2SE
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
        // workspace.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
        case '#':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
        case '!':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
        case '@':
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
          // Hand off current packages to current lazy entry (if any)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
          if ((cur_entry != NULL) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
              (boot_class_path_packages.length() > 0)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
            if (TraceClassLoading && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
              print_meta_index(cur_entry, boot_class_path_packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
            MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   383
                                             boot_class_path_packages.length());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
            cur_entry->set_meta_index(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   386
          cur_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
          boot_class_path_packages.clear();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   388
489c9b5090e2 Initial load
duke
parents:
diff changeset
   389
          // Find lazy entry corresponding to this jar file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
          for (ClassPathEntry* entry = _first_entry; entry != NULL; entry = entry->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
            if (entry->is_lazy() &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
                string_starts_with(entry->name(), meta_index_dir) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
                string_ends_with(entry->name(), &package_name[2])) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   394
              cur_entry = (LazyClassPathEntry*) entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
              break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
          // If the first character is '@', it indicates the following jar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
          // file is a resource only jar file in which case, we should skip
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
          // reading the subsequent entries since the resource loading is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
          // totally handled by J2SE side.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
          if (package_name[0] == '@') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
            if (cur_entry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
              cur_entry->set_meta_index(new MetaIndex(NULL, 0));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
            cur_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
            skipCurrentJar = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
          } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
            skipCurrentJar = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
          break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
        default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
          if (!skipCurrentJar && cur_entry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
            char* new_name = strdup(package_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
            boot_class_path_packages.append(new_name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
    // Hand off current packages to current lazy entry (if any)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
    if ((cur_entry != NULL) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
        (boot_class_path_packages.length() > 0)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
      if (TraceClassLoading && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
        print_meta_index(cur_entry, boot_class_path_packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
      MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
                                       boot_class_path_packages.length());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
      cur_entry->set_meta_index(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
    fclose(file);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
void ClassLoader::setup_bootstrap_search_path() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
  assert(_first_entry == NULL, "should not setup bootstrap class search path twice");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
  char* sys_class_path = os::strdup(Arguments::get_sysclasspath());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
  if (TraceClassLoading && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
    tty->print_cr("[Bootstrap loader class path=%s]", sys_class_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
  int len = (int)strlen(sys_class_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  int end = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
  // Iterate over class path entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
  for (int start = 0; start < len; start = end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
    while (sys_class_path[end] && sys_class_path[end] != os::path_separator()[0]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
      end++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
    char* path = NEW_C_HEAP_ARRAY(char, end-start+1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
    strncpy(path, &sys_class_path[start], end-start);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
    path[end-start] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
    update_class_path_entry_list(path, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
    FREE_C_HEAP_ARRAY(char, path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
    while (sys_class_path[end] == os::path_separator()[0]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
      end++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
void ClassLoader::create_class_path_entry(char *path, struct stat st, ClassPathEntry **new_entry, bool lazy) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
  JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
  if (lazy) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
    *new_entry = new LazyClassPathEntry(path, st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
  if ((st.st_mode & S_IFREG) == S_IFREG) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
    // Regular file, should be a zip file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
    // Canonicalized filename
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
    char canonical_path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
    if (!get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
      // This matches the classic VM
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
      EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
      THROW_MSG(vmSymbols::java_io_IOException(), "Bad pathname");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
    char* error_msg = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
    jzfile* zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
      // enable call to C land
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
      ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
      HandleMark hm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
      zip = (*ZipOpen)(canonical_path, &error_msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
    if (zip != NULL && error_msg == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
      *new_entry = new ClassPathZipEntry(zip, path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
      if (TraceClassLoading) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
        tty->print_cr("[Opened %s]", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
      ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
      char *msg;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
      if (error_msg == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
        msg = NEW_RESOURCE_ARRAY(char, strlen(path) + 128); ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
        jio_snprintf(msg, strlen(path) + 127, "error in opening JAR file %s", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
        int len = (int)(strlen(path) + strlen(error_msg) + 128);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
        msg = NEW_RESOURCE_ARRAY(char, len); ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
        jio_snprintf(msg, len - 1, "error in opening JAR file <%s> %s", error_msg, path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
      EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
      THROW_MSG(vmSymbols::java_lang_ClassNotFoundException(), msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
    // Directory
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
    *new_entry = new ClassPathDirEntry(path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
    if (TraceClassLoading) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
      tty->print_cr("[Path %s]", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
// Create a class path zip entry for a given path (return NULL if not found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
// or zip/JAR file cannot be opened)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
ClassPathZipEntry* ClassLoader::create_class_path_zip_entry(const char *path) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
  // check for a regular file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
  struct stat st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  if (os::stat(path, &st) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
    if ((st.st_mode & S_IFREG) == S_IFREG) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
      char orig_path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
      char canonical_path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
      strcpy(orig_path, path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
      if (get_canonical_path(orig_path, canonical_path, JVM_MAXPATHLEN)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
        char* error_msg = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
        jzfile* zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
          // enable call to C land
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
          JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
          ThreadToNativeFromVM ttn(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
          HandleMark hm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
          zip = (*ZipOpen)(canonical_path, &error_msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
        if (zip != NULL && error_msg == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
          // create using canonical path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
          return new ClassPathZipEntry(zip, canonical_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
// returns true if entry already on class path
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
bool ClassLoader::contains_entry(ClassPathEntry *entry) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
  ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
    // assume zip entries have been canonicalized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
    if (strcmp(entry->name(), e->name()) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
void ClassLoader::add_to_list(ClassPathEntry *new_entry) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
  if (new_entry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
    if (_last_entry == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
      _first_entry = _last_entry = new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
      _last_entry->set_next(new_entry);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
      _last_entry = new_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
void ClassLoader::update_class_path_entry_list(const char *path,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
                                               bool check_for_duplicates) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  struct stat st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
  if (os::stat((char *)path, &st) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
    // File or directory found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
    ClassPathEntry* new_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
    create_class_path_entry((char *)path, st, &new_entry, LazyBootClassLoader);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
    // The kernel VM adds dynamically to the end of the classloader path and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
    // doesn't reorder the bootclasspath which would break java.lang.Package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
    // (see PackageInfo).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
    // Add new entry to linked list
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
    if (!check_for_duplicates || !contains_entry(new_entry)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
      add_to_list(new_entry);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
void ClassLoader::print_bootclasspath() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
  ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
  tty->print("[bootclasspath= ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
    tty->print("%s ;", e->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  tty->print_cr("]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
void ClassLoader::load_zip_library() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
  assert(ZipOpen == NULL, "should not load zip library twice");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
  // First make sure native library is loaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
  os::native_java_library();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
  // Load zip library
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
  char path[JVM_MAXPATHLEN];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
  char ebuf[1024];
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   606
  os::dll_build_name(path, sizeof(path), Arguments::get_dll_dir(), "zip");
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   607
  void* handle = os::dll_load(path, ebuf, sizeof ebuf);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  if (handle == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
    vm_exit_during_initialization("Unable to load ZIP library", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  // Lookup zip entry points
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   612
  ZipOpen      = CAST_TO_FN_PTR(ZipOpen_t, os::dll_lookup(handle, "ZIP_Open"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   613
  ZipClose     = CAST_TO_FN_PTR(ZipClose_t, os::dll_lookup(handle, "ZIP_Close"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   614
  FindEntry    = CAST_TO_FN_PTR(FindEntry_t, os::dll_lookup(handle, "ZIP_FindEntry"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   615
  ReadEntry    = CAST_TO_FN_PTR(ReadEntry_t, os::dll_lookup(handle, "ZIP_ReadEntry"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   616
  ReadMappedEntry = CAST_TO_FN_PTR(ReadMappedEntry_t, os::dll_lookup(handle, "ZIP_ReadMappedEntry"));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   617
  GetNextEntry = CAST_TO_FN_PTR(GetNextEntry_t, os::dll_lookup(handle, "ZIP_GetNextEntry"));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
  // ZIP_Close is not exported on Windows in JDK5.0 so don't abort if ZIP_Close is NULL
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  if (ZipOpen == NULL || FindEntry == NULL || ReadEntry == NULL || GetNextEntry == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
    vm_exit_during_initialization("Corrupted ZIP library", path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
  // Lookup canonicalize entry in libjava.dll
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
  void *javalib_handle = os::native_java_library();
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
   626
  CanonicalizeEntry = CAST_TO_FN_PTR(canonicalize_fn_t, os::dll_lookup(javalib_handle, "Canonicalize"));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
  // This lookup only works on 1.3. Do not check for non-null here
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
// PackageInfo data exists in order to support the java.lang.Package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
// class.  A Package object provides information about a java package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
// (version, vendor, etc.) which originates in the manifest of the jar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
// file supplying the package.  For application classes, the ClassLoader
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
// object takes care of this.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
// For system (boot) classes, the Java code in the Package class needs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
// to be able to identify which source jar file contained the boot
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
// class, so that it can extract the manifest from it.  This table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
// identifies java packages with jar files in the boot classpath.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
// Because the boot classpath cannot change, the classpath index is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
// sufficient to identify the source jar file or directory.  (Since
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
// directories have no manifests, the directory name is not required,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
// but is available.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
// When using sharing -- the pathnames of entries in the boot classpath
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
// may not be the same at runtime as they were when the archive was
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
// created (NFS, Samba, etc.).  The actual files and directories named
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
// in the classpath must be the same files, in the same order, even
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
// though the exact name is not the same.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
class PackageInfo: public BasicHashtableEntry {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
  const char* _pkgname;       // Package name
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
  int _classpath_index;       // Index of directory or JAR file loaded from
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
  PackageInfo* next() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
    return (PackageInfo*)BasicHashtableEntry::next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
  const char* pkgname()           { return _pkgname; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
  void set_pkgname(char* pkgname) { _pkgname = pkgname; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
  const char* filename() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
    return ClassLoader::classpath_entry(_classpath_index)->name();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
  void set_index(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
    _classpath_index = index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
class PackageHashtable : public BasicHashtable {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
  inline unsigned int compute_hash(const char *s, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
    unsigned int val = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
    while (--n >= 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
      val = *s++ + 31 * val;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
    return val;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
  PackageInfo* bucket(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
    return (PackageInfo*)BasicHashtable::bucket(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
  PackageInfo* get_entry(int index, unsigned int hash,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
                         const char* pkgname, size_t n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
    for (PackageInfo* pp = bucket(index); pp != NULL; pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
      if (pp->hash() == hash &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
          strncmp(pkgname, pp->pkgname(), n) == 0 &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
          pp->pkgname()[n] == '\0') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
        return pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
  PackageHashtable(int table_size)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
    : BasicHashtable(table_size, sizeof(PackageInfo)) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
  PackageHashtable(int table_size, HashtableBucket* t, int number_of_entries)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
    : BasicHashtable(table_size, sizeof(PackageInfo), t, number_of_entries) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
  PackageInfo* get_entry(const char* pkgname, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
    unsigned int hash = compute_hash(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
    return get_entry(hash_to_index(hash), hash, pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
  PackageInfo* new_entry(char* pkgname, int n) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
    unsigned int hash = compute_hash(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
    PackageInfo* pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
    pp = (PackageInfo*)BasicHashtable::new_entry(hash);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
    pp->set_pkgname(pkgname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
    return pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
  void add_entry(PackageInfo* pp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
    int index = hash_to_index(pp->hash());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
    BasicHashtable::add_entry(index, pp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
  void copy_pkgnames(const char** packages) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
    int n = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
    for (int i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
      for (PackageInfo* pp = bucket(i); pp != NULL; pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
        packages[n++] = pp->pkgname();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
    assert(n == number_of_entries(), "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
  void copy_table(char** top, char* end, PackageHashtable* table);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
void PackageHashtable::copy_table(char** top, char* end,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
                                  PackageHashtable* table) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
  // Copy (relocate) the table to the shared space.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
  BasicHashtable::copy_table(top, end);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
  // Calculate the space needed for the package name strings.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
  int i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
  int n = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
  for (i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
    for (PackageInfo* pp = table->bucket(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
                      pp != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
                      pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
      n += (int)(strlen(pp->pkgname()) + 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
  if (*top + n + sizeof(intptr_t) >= end) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
   755
    report_out_of_shared_space(SharedMiscData);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
  // Copy the table data (the strings) to the shared space.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
  n = align_size_up(n, sizeof(HeapWord));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
  *(intptr_t*)(*top) = n;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
  *top += sizeof(intptr_t);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
  for (i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
    for (PackageInfo* pp = table->bucket(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
                      pp != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
                      pp = pp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
      int n1 = (int)(strlen(pp->pkgname()) + 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
      pp->set_pkgname((char*)memcpy(*top, pp->pkgname(), n1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
      *top += n1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
  *top = (char*)align_size_up((intptr_t)*top, sizeof(HeapWord));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
void ClassLoader::copy_package_info_buckets(char** top, char* end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
  _package_hash_table->copy_buckets(top, end);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
void ClassLoader::copy_package_info_table(char** top, char* end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
  _package_hash_table->copy_table(top, end, _package_hash_table);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
PackageInfo* ClassLoader::lookup_package(const char *pkgname) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
  const char *cp = strrchr(pkgname, '/');
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
  if (cp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
    // Package prefix found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
    int n = cp - pkgname + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
    return _package_hash_table->get_entry(pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
bool ClassLoader::add_package(const char *pkgname, int classpath_index, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
  assert(pkgname != NULL, "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
  // Bootstrap loader no longer holds system loader lock obj serializing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
  // load_instance_class and thereby add_package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
    // First check for previously loaded entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
    PackageInfo* pp = lookup_package(pkgname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
    if (pp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
      // Existing entry found, check source of package
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
      pp->set_index(classpath_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
    const char *cp = strrchr(pkgname, '/');
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
    if (cp != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
      // Package prefix found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
      int n = cp - pkgname + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
      char* new_pkgname = NEW_C_HEAP_ARRAY(char, n + 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
      if (new_pkgname == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
        return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
      memcpy(new_pkgname, pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
      new_pkgname[n] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
      pp = _package_hash_table->new_entry(new_pkgname, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
      pp->set_index(classpath_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
      // Insert into hash table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
      _package_hash_table->add_entry(pp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
oop ClassLoader::get_system_package(const char* name, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
  PackageInfo* pp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
    pp = lookup_package(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
  if (pp == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
    Handle p = java_lang_String::create_from_str(pp->filename(), THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
    return p();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
objArrayOop ClassLoader::get_system_packages(TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
  int nof_entries;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
  const char** packages;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
    MutexLocker ml(PackageTable_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
    // Allocate resource char* array containing package names
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
    nof_entries = _package_hash_table->number_of_entries();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
    if ((packages = NEW_RESOURCE_ARRAY(const char*, nof_entries)) == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
      return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
    _package_hash_table->copy_pkgnames(packages);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
  // Allocate objArray and fill with java.lang.String
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 3820
diff changeset
   862
  objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
                                           nof_entries, CHECK_0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
  objArrayHandle result(THREAD, r);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
  for (int i = 0; i < nof_entries; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
    Handle str = java_lang_String::create_from_str(packages[i], CHECK_0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
    result->obj_at_put(i, str());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
  return result();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
   874
instanceKlassHandle ClassLoader::load_classfile(Symbol* h_name, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
  ResourceMark rm(THREAD);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
   876
  EventMark m("loading class " INTPTR_FORMAT, (address)h_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
  ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
  stringStream st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
  // st.print() uses too much stack space while handling a StackOverflowError
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
  // st.print("%s.class", h_name->as_utf8());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
  st.print_raw(h_name->as_utf8());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
  st.print_raw(".class");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
  char* name = st.as_string();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
  // Lookup stream for parsing .class file
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
  ClassFileStream* stream = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
  int classpath_index = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
  {
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   890
    PerfClassTraceTime vmtimer(perf_sys_class_lookup_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   891
                               ((JavaThread*) THREAD)->get_thread_stat()->perf_timers_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   892
                               PerfClassTraceTime::CLASS_LOAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
    ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
    while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
      stream = e->open_stream(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
      if (stream != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
      e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
      ++classpath_index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
  instanceKlassHandle h(THREAD, klassOop(NULL));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
  if (stream != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
    // class file found, parse it
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
    ClassFileParser parser(stream);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
    Handle class_loader;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
    Handle protection_domain;
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
   911
    TempNewSymbol parsed_name = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
    instanceKlassHandle result = parser.parseClassFile(h_name,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
                                                       class_loader,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
                                                       protection_domain,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
                                                       parsed_name,
3820
0a8fbbe180db 6830542: Performance: JVM_DefineClass already verified.
acorn
parents: 3582
diff changeset
   916
                                                       false,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
                                                       CHECK_(h));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
    // add to package table
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
    if (add_package(name, classpath_index, THREAD)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
      h = result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
  return h;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
void ClassLoader::create_package_info_table(HashtableBucket *t, int length,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
                                            int number_of_entries) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
  assert(_package_hash_table == NULL, "One package info table allowed.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
  assert(length == package_hash_table_size * sizeof(HashtableBucket),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
         "bad shared package info size.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
  _package_hash_table = new PackageHashtable(package_hash_table_size, t,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
                                             number_of_entries);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
void ClassLoader::create_package_info_table() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
    assert(_package_hash_table == NULL, "shouldn't have one yet");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
    _package_hash_table = new PackageHashtable(package_hash_table_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
// Initialize the class loader's access to methods in libzip.  Parse and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
// process the boot classpath into a list ClassPathEntry objects.  Once
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
// this list has been created, it must not change order (see class PackageInfo)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
// it can be appended to and is by jvmti and the kernel vm.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
void ClassLoader::initialize() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
  assert(_package_hash_table == NULL, "should have been initialized by now.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
  if (UsePerfData) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
    // jvmstat performance counters
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
    NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
    NEWPERFTICKCOUNTER(_perf_class_init_time, SUN_CLS, "classInitTime");
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   958
    NEWPERFTICKCOUNTER(_perf_class_init_selftime, SUN_CLS, "classInitTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
    NEWPERFTICKCOUNTER(_perf_class_verify_time, SUN_CLS, "classVerifyTime");
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   960
    NEWPERFTICKCOUNTER(_perf_class_verify_selftime, SUN_CLS, "classVerifyTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
    NEWPERFTICKCOUNTER(_perf_class_link_time, SUN_CLS, "classLinkedTime");
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   962
    NEWPERFTICKCOUNTER(_perf_class_link_selftime, SUN_CLS, "classLinkedTime.self");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
    NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
    NEWPERFEVENTCOUNTER(_perf_classes_linked, SUN_CLS, "linkedClasses");
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   965
    NEWPERFEVENTCOUNTER(_perf_classes_verified, SUN_CLS, "verifiedClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   966
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   967
    NEWPERFTICKCOUNTER(_perf_class_parse_time, SUN_CLS, "parseClassTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   968
    NEWPERFTICKCOUNTER(_perf_class_parse_selftime, SUN_CLS, "parseClassTime.self");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   969
    NEWPERFTICKCOUNTER(_perf_sys_class_lookup_time, SUN_CLS, "lookupSysClassTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   970
    NEWPERFTICKCOUNTER(_perf_shared_classload_time, SUN_CLS, "sharedClassLoadTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   971
    NEWPERFTICKCOUNTER(_perf_sys_classload_time, SUN_CLS, "sysClassLoadTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   972
    NEWPERFTICKCOUNTER(_perf_app_classload_time, SUN_CLS, "appClassLoadTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   973
    NEWPERFTICKCOUNTER(_perf_app_classload_selftime, SUN_CLS, "appClassLoadTime.self");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   974
    NEWPERFEVENTCOUNTER(_perf_app_classload_count, SUN_CLS, "appClassLoadCount");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   975
    NEWPERFTICKCOUNTER(_perf_define_appclasses, SUN_CLS, "defineAppClasses");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   976
    NEWPERFTICKCOUNTER(_perf_define_appclass_time, SUN_CLS, "defineAppClassTime");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   977
    NEWPERFTICKCOUNTER(_perf_define_appclass_selftime, SUN_CLS, "defineAppClassTime.self");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   978
    NEWPERFBYTECOUNTER(_perf_app_classfile_bytes_read, SUN_CLS, "appClassBytes");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   979
    NEWPERFBYTECOUNTER(_perf_sys_classfile_bytes_read, SUN_CLS, "sysClassBytes");
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2567
diff changeset
   980
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
    // The following performance counters are added for measuring the impact
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
    // of the bug fix of 6365597. They are mainly focused on finding out
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
    // the behavior of system & user-defined classloader lock, whether
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
    // ClassLoader.loadClass/findClass is being called synchronized or not.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
    // Also two additional counters are created to see whether 'UnsyncloadClass'
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
    // flag is being set or not and how many times load_instance_class call
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
    // fails with linkageError etc.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
    NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
                        "systemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
    NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
                        "nonSystemLoaderLockContentionRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
    NEWPERFEVENTCOUNTER(_sync_JVMFindLoadedClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
                        "jvmFindLoadedClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
    NEWPERFEVENTCOUNTER(_sync_JVMDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
                        "jvmDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
    NEWPERFEVENTCOUNTER(_sync_JNIDefineClassLockFreeCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
                        "jniDefineClassNoLockCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
    NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
                        "unsafeDefineClassCalls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
    NEWPERFEVENTCOUNTER(_isUnsyncloadClass, SUN_CLS, "isUnsyncloadClassSet");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
    NEWPERFEVENTCOUNTER(_load_instance_class_failCounter, SUN_CLS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
                        "loadInstanceClassFailRate");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
    // increment the isUnsyncloadClass counter if UnsyncloadClass is set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
    if (UnsyncloadClass) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
      _isUnsyncloadClass->inc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
  // lookup zip library entry points
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
  load_zip_library();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
  // initialize search path
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
  setup_bootstrap_search_path();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
  if (LazyBootClassLoader) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
    // set up meta index which makes boot classpath initialization lazier
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
    setup_meta_index();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
jlong ClassLoader::classloader_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
    Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
jlong ClassLoader::class_init_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
  return UsePerfData ? _perf_classes_inited->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
jlong ClassLoader::class_init_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
    Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
jlong ClassLoader::class_verify_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
    Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
jlong ClassLoader::class_link_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
  return UsePerfData ? _perf_classes_linked->get_value() : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
jlong ClassLoader::class_link_time_ms() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
  return UsePerfData ?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
    Management::ticks_to_ms(_perf_class_link_time->get_value()) : -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
int ClassLoader::compute_Object_vtable() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
  // hardwired for JDK1.2 -- would need to duplicate class file parsing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
  // code to determine actual value from file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
  // Would be value '11' if finals were in vtable
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
  int JDK_1_2_Object_vtable_size = 5;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
  return JDK_1_2_Object_vtable_size * vtableEntry::size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
void classLoader_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
  ClassLoader::initialize();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
bool ClassLoader::get_canonical_path(char* orig, char* out, int len) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
  assert(orig != NULL && out != NULL && len > 0, "bad arguments");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
  if (CanonicalizeEntry != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
    JNIEnv* env = JavaThread::current()->jni_environment();
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1071
    if ((CanonicalizeEntry)(env, os::native_path(orig), out, len) < 0) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
    // On JDK 1.2.2 the Canonicalize does not exist, so just do nothing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1076
    strncpy(out, orig, len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1077
    out[len - 1] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1078
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1079
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
void ClassLoader::verify() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
  _package_hash_table->verify();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1089
// CompileTheWorld
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
// Iterates over all class path entries and forces compilation of all methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
// in all classes found. Currently, only zip/jar archives are searched.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
// The classes are loaded by the Java level bootstrap class loader, and the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
// initializer is called. If DelayCompilationDuringStartup is true (default),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
// the interpreter will run the initialization code. Note that forcing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
// initialization in this way could potentially lead to initialization order
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
// problems, in which case we could just force the initialization bit to be set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
// We need to iterate over the contents of a zip/jar file, so we replicate the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
// jzcell and jzfile definitions from zip_util.h but rename jzfile to real_jzfile,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
// since jzfile already has a void* definition.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
// Note that this is only used in debug mode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
// HotSpot integration note:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
// Matches zip_util.h 1.14 99/06/01 from jdk1.3 beta H build
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
// JDK 1.3 version
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
typedef struct real_jzentry13 {         /* Zip file entry */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
    char *name;                 /* entry name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
    jint time;                  /* modification time */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
    jint size;                  /* size of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
    jint csize;                 /* size of compressed data (zero if uncompressed) */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
    jint crc;                   /* crc of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
    char *comment;              /* optional zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
    jbyte *extra;               /* optional extra data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
    jint pos;                   /* position of LOC header (if negative) or data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
} real_jzentry13;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
typedef struct real_jzfile13 {  /* Zip file */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
    char *name;                 /* zip file name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
    jint refs;                  /* number of active references */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
    jint fd;                    /* open file descriptor */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
    void *lock;                 /* read lock */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
    char *comment;              /* zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
    char *msg;                  /* zip error message */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
    void *entries;              /* array of hash cells */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
    jint total;                 /* total number of entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
    unsigned short *table;      /* Hash chain heads: indexes into entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
    jint tablelen;              /* number of hash eads */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
    real_jzfile13 *next;        /* next zip file in search list */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
    jzentry *cache;             /* we cache the most recently freed jzentry */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
    /* Information on metadata names in META-INF directory */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
    char **metanames;           /* array of meta names (may have null names) */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
    jint metacount;             /* number of slots in metanames array */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
    /* If there are any per-entry comments, they are in the comments array */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
    char **comments;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
} real_jzfile13;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
// JDK 1.2 version
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
typedef struct real_jzentry12 {  /* Zip file entry */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
    char *name;                  /* entry name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
    jint time;                   /* modification time */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
    jint size;                   /* size of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
    jint csize;                  /* size of compressed data (zero if uncompressed) */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
    jint crc;                    /* crc of uncompressed data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
    char *comment;               /* optional zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
    jbyte *extra;                /* optional extra data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
    jint pos;                    /* position of LOC header (if negative) or data */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
    struct real_jzentry12 *next; /* next entry in hash table */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
} real_jzentry12;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
typedef struct real_jzfile12 {  /* Zip file */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
    char *name;                 /* zip file name */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
    jint refs;                  /* number of active references */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
    jint fd;                    /* open file descriptor */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
    void *lock;                 /* read lock */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
    char *comment;              /* zip file comment */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
    char *msg;                  /* zip error message */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
    real_jzentry12 *entries;    /* array of zip entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
    jint total;                 /* total number of entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
    real_jzentry12 **table;     /* hash table of entries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1166
    jint tablelen;              /* number of buckets */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1167
    jzfile *next;               /* next zip file in search list */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
} real_jzfile12;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
void ClassPathDirEntry::compile_the_world(Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
  // For now we only compile all methods in all classes in zip/jar files
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
  tty->print_cr("CompileTheWorld : Skipped classes in %s", _dir);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
bool ClassPathDirEntry::is_rt_jar() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
void ClassPathZipEntry::compile_the_world(Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
  if (JDK_Version::is_jdk12x_version()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
    compile_the_world12(loader, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
    compile_the_world13(loader, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
  if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
    if (PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
      CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
      tty->print_cr("\nCompileTheWorld : Ran out of memory\n");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
      size_t used = Universe::heap()->permanent_used();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
      size_t capacity = Universe::heap()->permanent_capacity();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
      tty->print_cr("Permanent generation used %dK of %dK", used/K, capacity/K);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
      tty->print_cr("Increase size by setting e.g. -XX:MaxPermSize=%dK\n", capacity*2/K);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
      tty->print_cr("\nCompileTheWorld : Unexpected exception occurred\n");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
// Version that works for JDK 1.3.x
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
void ClassPathZipEntry::compile_the_world13(Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
  real_jzfile13* zip = (real_jzfile13*) _zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
  tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
  // Iterate over all entries in zip file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
  for (int n = 0; ; n++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
    real_jzentry13 * ze = (real_jzentry13 *)((*GetNextEntry)(_zip, n));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
    if (ze == NULL) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
    ClassLoader::compile_the_world_in(ze->name, loader, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
// Version that works for JDK 1.2.x
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
void ClassPathZipEntry::compile_the_world12(Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
  real_jzfile12* zip = (real_jzfile12*) _zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
  tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
  // Iterate over all entries in zip file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
  for (int n = 0; ; n++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
    real_jzentry12 * ze = (real_jzentry12 *)((*GetNextEntry)(_zip, n));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
    if (ze == NULL) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
    ClassLoader::compile_the_world_in(ze->name, loader, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
bool ClassPathZipEntry::is_rt_jar() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
  if (JDK_Version::is_jdk12x_version()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
    return is_rt_jar12();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
    return is_rt_jar13();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
// JDK 1.3 version
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
bool ClassPathZipEntry::is_rt_jar13() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
  real_jzfile13* zip = (real_jzfile13*) _zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
  int len = (int)strlen(zip->name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
  // Check whether zip name ends in "rt.jar"
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
  // This will match other archives named rt.jar as well, but this is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
  // only used for debugging.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  return (len >= 6) && (strcasecmp(zip->name + len - 6, "rt.jar") == 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
// JDK 1.2 version
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
bool ClassPathZipEntry::is_rt_jar12() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
  real_jzfile12* zip = (real_jzfile12*) _zip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
  int len = (int)strlen(zip->name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
  // Check whether zip name ends in "rt.jar"
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
  // This will match other archives named rt.jar as well, but this is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
  // only used for debugging.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
  return (len >= 6) && (strcasecmp(zip->name + len - 6, "rt.jar") == 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
void LazyClassPathEntry::compile_the_world(Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
  resolve_entry()->compile_the_world(loader, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
bool LazyClassPathEntry::is_rt_jar() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
  return resolve_entry()->is_rt_jar();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
void ClassLoader::compile_the_world() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
  HandleMark hm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
  // Make sure we don't run with background compilation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
  BackgroundCompilation = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
  // Find bootstrap loader
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
  Handle system_class_loader (THREAD, SystemDictionary::java_system_loader());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
  // Iterate over all bootstrap class path entries
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
  ClassPathEntry* e = _first_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
  while (e != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
    // We stop at rt.jar, unless it is the first bootstrap path entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
    if (e->is_rt_jar() && e != _first_entry) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
    e->compile_the_world(system_class_loader, CATCH);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
    e = e->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
  tty->print_cr("CompileTheWorld : Done");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
    // Print statistics as if before normal exit:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
    extern void print_statistics();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
    print_statistics();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
  vm_exit(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
int ClassLoader::_compile_the_world_counter = 0;
4736
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1291
static int _codecache_sweep_counter = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1293
// Filter out all exceptions except OOMs
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1294
static void clear_pending_exception_if_not_oom(TRAPS) {
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1295
  if (HAS_PENDING_EXCEPTION &&
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1296
      !PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) {
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1297
    CLEAR_PENDING_EXCEPTION;
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1298
  }
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1299
  // The CHECK at the caller will propagate the exception out
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1300
}
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1301
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
  int len = (int)strlen(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
  if (len > 6 && strcmp(".class", name + len - 6) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
    // We have a .class file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
    char buffer[2048];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1307
    strncpy(buffer, name, len - 6);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
    buffer[len-6] = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
    // If the file has a period after removing .class, it's not really a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
    // valid class file.  The class loader will check everything else.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
    if (strchr(buffer, '.') == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
      _compile_the_world_counter++;
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1313
      if (_compile_the_world_counter > CompileTheWorldStopAt) return;
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1314
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1315
      // Construct name without extension
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7910
diff changeset
  1316
      TempNewSymbol sym = SymbolTable::new_symbol(buffer, CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1317
      // Use loader to load and initialize class
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1318
      klassOop ik = SystemDictionary::resolve_or_null(sym, loader, Handle(), THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1319
      instanceKlassHandle k (THREAD, ik);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1320
      if (k.not_null() && !HAS_PENDING_EXCEPTION) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1321
        k->initialize(THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1322
      }
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1323
      bool exception_occurred = HAS_PENDING_EXCEPTION;
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1324
      clear_pending_exception_if_not_oom(CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1325
      if (CompileTheWorldPreloadClasses && k.not_null()) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1326
        constantPoolKlass::preload_and_initialize_all_classes(k->constants(), THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1327
        if (HAS_PENDING_EXCEPTION) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1328
          // If something went wrong in preloading we just ignore it
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1329
          clear_pending_exception_if_not_oom(CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1330
          tty->print_cr("Preloading failed for (%d) %s", _compile_the_world_counter, buffer);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
        }
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1332
      }
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1333
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1334
      if (_compile_the_world_counter >= CompileTheWorldStartAt) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
        if (k.is_null() || (exception_occurred && !CompileTheWorldIgnoreInitErrors)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
          // If something went wrong (e.g. ExceptionInInitializerError) we skip this class
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
          tty->print_cr("CompileTheWorld (%d) : Skipping %s", _compile_the_world_counter, buffer);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
          tty->print_cr("CompileTheWorld (%d) : %s", _compile_the_world_counter, buffer);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
          // Preload all classes to get around uncommon traps
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
          // Iterate over all methods in class
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
          for (int n = 0; n < k->methods()->length(); n++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
            methodHandle m (THREAD, methodOop(k->methods()->obj_at(n)));
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5924
diff changeset
  1344
            if (CompilationPolicy::can_be_compiled(m)) {
4736
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1345
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1346
              if (++_codecache_sweep_counter == CompileTheWorldSafepointInterval) {
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1347
                // Give sweeper a chance to keep up with CTW
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1348
                VM_ForceSafepoint op;
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1349
                VMThread::execute(&op);
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1350
                _codecache_sweep_counter = 0;
e091227926da 6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents: 4571
diff changeset
  1351
              }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
              // Force compilation
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5924
diff changeset
  1353
              CompileBroker::compile_method(m, InvocationEntryBci, CompLevel_initial_compile,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
                                            methodHandle(), 0, "CTW", THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
              if (HAS_PENDING_EXCEPTION) {
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1356
                clear_pending_exception_if_not_oom(CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
                tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_counter, m->name()->as_C_string());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
              }
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1359
              if (TieredCompilation) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1360
                // Clobber the first compile and force second tier compilation
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1361
                nmethod* nm = m->code();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1362
                if (nm != NULL) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1363
                  // Throw out the code so that the code cache doesn't fill up
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1364
                  nm->make_not_entrant();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1365
                  m->clear_code();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1366
                }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 5924
diff changeset
  1367
                CompileBroker::compile_method(m, InvocationEntryBci, CompLevel_full_optimization,
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1368
                                              methodHandle(), 0, "CTW", THREAD);
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1369
                if (HAS_PENDING_EXCEPTION) {
8327
f5a13a17d5f3 7018506: CTW swallowing OOMs after symbol changes
never
parents: 8076
diff changeset
  1370
                  clear_pending_exception_if_not_oom(CHECK);
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1371
                  tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_counter, m->name()->as_C_string());
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1372
                }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1373
              }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1374
            }
2567
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1375
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1376
            nmethod* nm = m->code();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1377
            if (nm != NULL) {
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1378
              // Throw out the code so that the code cache doesn't fill up
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1379
              nm->make_not_entrant();
ee624563f743 6741757: minor ctw improvements
never
parents: 1
diff changeset
  1380
              m->clear_code();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
#endif //PRODUCT
7910
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1390
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1391
// Please keep following two functions at end of this file. With them placed at top or in middle of the file,
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1392
// they could get inlined by agressive compiler, an unknown trick, see bug 6966589.
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1393
void PerfClassTraceTime::initialize() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1394
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1395
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1396
  if (_eventp != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1397
    // increment the event counter
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1398
    _eventp->inc();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1399
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1400
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1401
  // stop the current active thread-local timer to measure inclusive time
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1402
  _prev_active_event = -1;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1403
  for (int i=0; i < EVENT_TYPE_COUNT; i++) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1404
     if (_timers[i].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1405
       assert(_prev_active_event == -1, "should have only one active timer");
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1406
       _prev_active_event = i;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1407
       _timers[i].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1408
     }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1409
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1410
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1411
  if (_recursion_counters == NULL || (_recursion_counters[_event_type])++ == 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1412
    // start the inclusive timer if not recursively called
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1413
    _t.start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1414
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1415
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1416
  // start thread-local timer of the given event type
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1417
   if (!_timers[_event_type].is_active()) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1418
    _timers[_event_type].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1419
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1420
}
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1421
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1422
PerfClassTraceTime::~PerfClassTraceTime() {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1423
  if (!UsePerfData) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1424
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1425
  // stop the thread-local timer as the event completes
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1426
  // and resume the thread-local timer of the event next on the stack
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1427
  _timers[_event_type].stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1428
  jlong selftime = _timers[_event_type].ticks();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1429
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1430
  if (_prev_active_event >= 0) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1431
    _timers[_prev_active_event].start();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1432
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1433
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1434
  if (_recursion_counters != NULL && --(_recursion_counters[_event_type]) > 0) return;
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1435
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1436
  // increment the counters only on the leaf call
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1437
  _t.stop();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1438
  _timep->inc(_t.ticks());
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1439
  if (_selftimep != NULL) {
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1440
    _selftimep->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1441
  }
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1442
  // add all class loading related event selftime to the accumulated time counter
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1443
  ClassLoader::perf_accumulated_time()->inc(selftime);
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1444
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1445
  // reset the timer
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1446
  _timers[_event_type].reset();
135031ddb2bb 6966589: hs16-b08 causes java.lang.StackOverflowError
minqi
parents: 7405
diff changeset
  1447
}