hotspot/src/share/vm/prims/jvmtiExport.hpp
author never
Wed, 02 Jun 2010 14:23:23 -0700
changeset 5700 a78767273dc1
parent 5353 30f4b75f8005
child 5702 201c5cde25bb
permissions -rw-r--r--
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint Reviewed-by: kvn, dcubed
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
4761
bdb7375a1fee 6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents: 4491
diff changeset
     2
 * Copyright 1998-2010 Sun Microsystems, Inc.  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
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    19
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    20
 * CA 95054 USA or visit www.sun.com if you need additional information or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    21
 * have any questions.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
489c9b5090e2 Initial load
duke
parents:
diff changeset
    25
#ifndef _JAVA_JVMTIEXPORT_H_
489c9b5090e2 Initial load
duke
parents:
diff changeset
    26
#define _JAVA_JVMTIEXPORT_H_
489c9b5090e2 Initial load
duke
parents:
diff changeset
    27
489c9b5090e2 Initial load
duke
parents:
diff changeset
    28
// Forward declarations
489c9b5090e2 Initial load
duke
parents:
diff changeset
    29
489c9b5090e2 Initial load
duke
parents:
diff changeset
    30
class JvmtiEventControllerPrivate;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    31
class JvmtiManageCapabilities;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    32
class JvmtiEnv;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    33
class JvmtiThreadState;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    34
class AttachOperation;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    35
489c9b5090e2 Initial load
duke
parents:
diff changeset
    36
#ifndef JVMTI_KERNEL
489c9b5090e2 Initial load
duke
parents:
diff changeset
    37
#define JVMTI_SUPPORT_FLAG(key)                                         \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    38
  private:                                                              \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    39
  static bool  _##key;                                                  \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    40
  public:                                                               \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    41
  inline static void set_##key(bool on)       { _##key = (on != 0); }   \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    42
  inline static bool key()                    { return _##key; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    43
#else  // JVMTI_KERNEL
489c9b5090e2 Initial load
duke
parents:
diff changeset
    44
#define JVMTI_SUPPORT_FLAG(key)                                           \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    45
  private:                                                                \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    46
  const static bool _##key = false;                                       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    47
  public:                                                                 \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    48
  inline static void set_##key(bool on)       { report_unsupported(on); } \
489c9b5090e2 Initial load
duke
parents:
diff changeset
    49
  inline static bool key()                    { return _##key; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
    50
#endif // JVMTI_KERNEL
489c9b5090e2 Initial load
duke
parents:
diff changeset
    51
489c9b5090e2 Initial load
duke
parents:
diff changeset
    52
489c9b5090e2 Initial load
duke
parents:
diff changeset
    53
// This class contains the JVMTI interface for the rest of hotspot.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    54
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
    55
class JvmtiExport : public AllStatic {
489c9b5090e2 Initial load
duke
parents:
diff changeset
    56
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
    57
  static int         _field_access_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    58
  static int         _field_modification_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    59
489c9b5090e2 Initial load
duke
parents:
diff changeset
    60
  static bool        _can_access_local_variables;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    61
  static bool        _can_hotswap_or_post_breakpoint;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    62
  static bool        _can_modify_any_class;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    63
  static bool        _can_walk_any_space;
489c9b5090e2 Initial load
duke
parents:
diff changeset
    64
489c9b5090e2 Initial load
duke
parents:
diff changeset
    65
  JVMTI_SUPPORT_FLAG(can_get_source_debug_extension)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    66
  JVMTI_SUPPORT_FLAG(can_maintain_original_method_order)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    67
  JVMTI_SUPPORT_FLAG(can_post_interpreter_events)
4761
bdb7375a1fee 6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents: 4491
diff changeset
    68
  JVMTI_SUPPORT_FLAG(can_post_on_exceptions)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    69
  JVMTI_SUPPORT_FLAG(can_post_breakpoint)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    70
  JVMTI_SUPPORT_FLAG(can_post_field_access)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    71
  JVMTI_SUPPORT_FLAG(can_post_field_modification)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    72
  JVMTI_SUPPORT_FLAG(can_post_method_entry)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    73
  JVMTI_SUPPORT_FLAG(can_post_method_exit)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    74
  JVMTI_SUPPORT_FLAG(can_pop_frame)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    75
  JVMTI_SUPPORT_FLAG(can_force_early_return)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    76
489c9b5090e2 Initial load
duke
parents:
diff changeset
    77
  friend class JvmtiEventControllerPrivate;  // should only modify these flags
489c9b5090e2 Initial load
duke
parents:
diff changeset
    78
  JVMTI_SUPPORT_FLAG(should_post_single_step)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    79
  JVMTI_SUPPORT_FLAG(should_post_field_access)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    80
  JVMTI_SUPPORT_FLAG(should_post_field_modification)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
  JVMTI_SUPPORT_FLAG(should_post_class_load)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    82
  JVMTI_SUPPORT_FLAG(should_post_class_prepare)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    83
  JVMTI_SUPPORT_FLAG(should_post_class_unload)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    84
  JVMTI_SUPPORT_FLAG(should_post_native_method_bind)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
  JVMTI_SUPPORT_FLAG(should_post_compiled_method_load)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
  JVMTI_SUPPORT_FLAG(should_post_compiled_method_unload)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
  JVMTI_SUPPORT_FLAG(should_post_dynamic_code_generated)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    88
  JVMTI_SUPPORT_FLAG(should_post_monitor_contended_enter)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    89
  JVMTI_SUPPORT_FLAG(should_post_monitor_contended_entered)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    90
  JVMTI_SUPPORT_FLAG(should_post_monitor_wait)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    91
  JVMTI_SUPPORT_FLAG(should_post_monitor_waited)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    92
  JVMTI_SUPPORT_FLAG(should_post_data_dump)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    93
  JVMTI_SUPPORT_FLAG(should_post_garbage_collection_start)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    94
  JVMTI_SUPPORT_FLAG(should_post_garbage_collection_finish)
4761
bdb7375a1fee 6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents: 4491
diff changeset
    95
  JVMTI_SUPPORT_FLAG(should_post_on_exceptions)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    96
489c9b5090e2 Initial load
duke
parents:
diff changeset
    97
  // ------ the below maybe don't have to be (but are for now)
489c9b5090e2 Initial load
duke
parents:
diff changeset
    98
  // fixed conditions here ------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
    99
  // any events can be enabled
489c9b5090e2 Initial load
duke
parents:
diff changeset
   100
  JVMTI_SUPPORT_FLAG(should_post_thread_life)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   101
  JVMTI_SUPPORT_FLAG(should_post_object_free)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   102
  JVMTI_SUPPORT_FLAG(should_post_resource_exhausted)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   103
489c9b5090e2 Initial load
duke
parents:
diff changeset
   104
  // we are holding objects on the heap - need to talk to GC - e.g.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   105
  // breakpoint info
489c9b5090e2 Initial load
duke
parents:
diff changeset
   106
  JVMTI_SUPPORT_FLAG(should_clean_up_heap_objects)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   107
  JVMTI_SUPPORT_FLAG(should_post_vm_object_alloc)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   108
489c9b5090e2 Initial load
duke
parents:
diff changeset
   109
  // If flag cannot be implemented, give an error if on=true
489c9b5090e2 Initial load
duke
parents:
diff changeset
   110
  static void report_unsupported(bool on);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   111
489c9b5090e2 Initial load
duke
parents:
diff changeset
   112
  // these should only be called by the friend class
489c9b5090e2 Initial load
duke
parents:
diff changeset
   113
  friend class JvmtiManageCapabilities;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   114
  inline static void set_can_modify_any_class(bool on)                 { _can_modify_any_class = (on != 0); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   115
  inline static void set_can_access_local_variables(bool on)           { _can_access_local_variables = (on != 0); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   116
  inline static void set_can_hotswap_or_post_breakpoint(bool on)       { _can_hotswap_or_post_breakpoint = (on != 0); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   117
  inline static void set_can_walk_any_space(bool on)                   { _can_walk_any_space = (on != 0); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   118
489c9b5090e2 Initial load
duke
parents:
diff changeset
   119
  enum {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   120
    JVMTI_VERSION_MASK   = 0x70000000,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   121
    JVMTI_VERSION_VALUE  = 0x30000000,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   122
    JVMDI_VERSION_VALUE  = 0x20000000
489c9b5090e2 Initial load
duke
parents:
diff changeset
   123
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   124
489c9b5090e2 Initial load
duke
parents:
diff changeset
   125
  static void post_field_modification(JavaThread *thread, methodOop method, address location,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   126
                                      KlassHandle field_klass, Handle object, jfieldID field,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   127
                                      char sig_type, jvalue *value);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   128
489c9b5090e2 Initial load
duke
parents:
diff changeset
   129
489c9b5090e2 Initial load
duke
parents:
diff changeset
   130
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   131
  // CompiledMethodUnload events are reported from the VM thread so they
489c9b5090e2 Initial load
duke
parents:
diff changeset
   132
  // are collected in lists (of jmethodID/addresses) and the events are posted later
489c9b5090e2 Initial load
duke
parents:
diff changeset
   133
  // from threads posting CompieldMethodLoad or DynamicCodeGenerated events.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   134
  static bool _have_pending_compiled_method_unload_events;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   135
  static GrowableArray<jmethodID>* _pending_compiled_method_unload_method_ids;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   136
  static GrowableArray<const void *>* _pending_compiled_method_unload_code_begins;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   137
  static JavaThread* _current_poster;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   138
489c9b5090e2 Initial load
duke
parents:
diff changeset
   139
  // tests if there are CompiledMethodUnload events pending
489c9b5090e2 Initial load
duke
parents:
diff changeset
   140
  inline static bool have_pending_compiled_method_unload_events() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   141
    return _have_pending_compiled_method_unload_events;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   142
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   143
489c9b5090e2 Initial load
duke
parents:
diff changeset
   144
  // posts any pending CompiledMethodUnload events.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   145
  static void post_pending_compiled_method_unload_events();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   146
5700
a78767273dc1 6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents: 5353
diff changeset
   147
  // Perform the actual notification to interested JvmtiEnvs.
a78767273dc1 6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents: 5353
diff changeset
   148
  static void post_compiled_method_unload_internal(JavaThread* self, jmethodID mid, const void* code_begin);
a78767273dc1 6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents: 5353
diff changeset
   149
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   150
  // posts a DynamicCodeGenerated event (internal/private implementation).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   151
  // The public post_dynamic_code_generated* functions make use of the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   152
  // internal implementation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   153
  static void post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   154
489c9b5090e2 Initial load
duke
parents:
diff changeset
   155
489c9b5090e2 Initial load
duke
parents:
diff changeset
   156
  // GenerateEvents support to allow posting of CompiledMethodLoad and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   157
  // DynamicCodeGenerated events for a given environment.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   158
  friend class JvmtiCodeBlobEvents;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   159
489c9b5090e2 Initial load
duke
parents:
diff changeset
   160
  static void post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   161
                                        const void *code_begin, const jint map_length,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   162
                                        const jvmtiAddrLocationMap* map) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   163
  static void post_dynamic_code_generated(JvmtiEnv* env, const char *name, const void *code_begin,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   164
                                          const void *code_end) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   165
489c9b5090e2 Initial load
duke
parents:
diff changeset
   166
  // The RedefineClasses() API breaks some invariants in the "regular"
489c9b5090e2 Initial load
duke
parents:
diff changeset
   167
  // system. For example, there are sanity checks when GC'ing nmethods
489c9b5090e2 Initial load
duke
parents:
diff changeset
   168
  // that require the containing class to be unloading. However, when a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   169
  // method is redefined, the old method and nmethod can become GC'able
489c9b5090e2 Initial load
duke
parents:
diff changeset
   170
  // without the containing class unloading. The state of becoming
489c9b5090e2 Initial load
duke
parents:
diff changeset
   171
  // GC'able can be asynchronous to the RedefineClasses() call since
489c9b5090e2 Initial load
duke
parents:
diff changeset
   172
  // the old method may still be running and cannot be GC'ed until
489c9b5090e2 Initial load
duke
parents:
diff changeset
   173
  // after all old invocations have finished. Additionally, a method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   174
  // that has not been redefined may have an nmethod that depends on
489c9b5090e2 Initial load
duke
parents:
diff changeset
   175
  // the redefined method. The dependent nmethod will get deopted in
489c9b5090e2 Initial load
duke
parents:
diff changeset
   176
  // this case and may also be GC'able without the containing class
489c9b5090e2 Initial load
duke
parents:
diff changeset
   177
  // being unloaded.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   178
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   179
  // This flag indicates whether RedefineClasses() has ever redefined
489c9b5090e2 Initial load
duke
parents:
diff changeset
   180
  // one or more classes during the lifetime of the VM. The flag should
489c9b5090e2 Initial load
duke
parents:
diff changeset
   181
  // only be set by the friend class and can be queried by other sub
489c9b5090e2 Initial load
duke
parents:
diff changeset
   182
  // systems as needed to relax invariant checks.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   183
  static bool _has_redefined_a_class;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   184
  friend class VM_RedefineClasses;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   185
  inline static void set_has_redefined_a_class() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   186
    _has_redefined_a_class = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   187
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   188
489c9b5090e2 Initial load
duke
parents:
diff changeset
   189
  // Flag to indicate if the compiler has recorded all dependencies. When the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   190
  // can_redefine_classes capability is enabled in the OnLoad phase then the compiler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   191
  // records all dependencies from startup. However if the capability is first
489c9b5090e2 Initial load
duke
parents:
diff changeset
   192
  // enabled some time later then the dependencies recorded by the compiler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   193
  // are incomplete. This flag is used by RedefineClasses to know if the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   194
  // dependency information is complete or not.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   195
  static bool _all_dependencies_are_recorded;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   196
489c9b5090e2 Initial load
duke
parents:
diff changeset
   197
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   198
  inline static bool has_redefined_a_class() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   199
    return _has_redefined_a_class;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   200
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   201
489c9b5090e2 Initial load
duke
parents:
diff changeset
   202
  inline static bool all_dependencies_are_recorded() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   203
    return _all_dependencies_are_recorded;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   204
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   205
489c9b5090e2 Initial load
duke
parents:
diff changeset
   206
  inline static void set_all_dependencies_are_recorded(bool on) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   207
    _all_dependencies_are_recorded = (on != 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   208
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   209
489c9b5090e2 Initial load
duke
parents:
diff changeset
   210
489c9b5090e2 Initial load
duke
parents:
diff changeset
   211
  // let JVMTI know that the JVM_OnLoad code is running
489c9b5090e2 Initial load
duke
parents:
diff changeset
   212
  static void enter_onload_phase();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   213
489c9b5090e2 Initial load
duke
parents:
diff changeset
   214
  // let JVMTI know that the VM isn't up yet (and JVM_OnLoad code isn't running)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   215
  static void enter_primordial_phase();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   216
489c9b5090e2 Initial load
duke
parents:
diff changeset
   217
  // let JVMTI know that the VM isn't up yet but JNI is live
489c9b5090e2 Initial load
duke
parents:
diff changeset
   218
  static void enter_start_phase();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   219
489c9b5090e2 Initial load
duke
parents:
diff changeset
   220
  // let JVMTI know that the VM is fully up and running now
489c9b5090e2 Initial load
duke
parents:
diff changeset
   221
  static void enter_live_phase();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   222
489c9b5090e2 Initial load
duke
parents:
diff changeset
   223
  // ------ can_* conditions (below) are set at OnLoad and never changed ------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   224
  inline static bool can_modify_any_class()                       { return _can_modify_any_class; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   225
  inline static bool can_access_local_variables()                 { return _can_access_local_variables; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   226
  inline static bool can_hotswap_or_post_breakpoint()             { return _can_hotswap_or_post_breakpoint; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   227
  inline static bool can_walk_any_space()                         { return _can_walk_any_space; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   228
489c9b5090e2 Initial load
duke
parents:
diff changeset
   229
  // field access management
489c9b5090e2 Initial load
duke
parents:
diff changeset
   230
  static address  get_field_access_count_addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   231
489c9b5090e2 Initial load
duke
parents:
diff changeset
   232
  // field modification management
489c9b5090e2 Initial load
duke
parents:
diff changeset
   233
  static address  get_field_modification_count_addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   234
489c9b5090e2 Initial load
duke
parents:
diff changeset
   235
  // -----------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   236
489c9b5090e2 Initial load
duke
parents:
diff changeset
   237
  static bool is_jvmti_version(jint version)                      { return (version & JVMTI_VERSION_MASK) == JVMTI_VERSION_VALUE; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   238
  static bool is_jvmdi_version(jint version)                      { return (version & JVMTI_VERSION_MASK) == JVMDI_VERSION_VALUE; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   239
  static jint get_jvmti_interface(JavaVM *jvm, void **penv, jint version);
4491
212bd48525d4 6849968: 3/2 JVMTI tests fails on jdk5.0 with hs14
dcubed
parents: 1
diff changeset
   240
  static void decode_version_values(jint version, int * major, int * minor,
212bd48525d4 6849968: 3/2 JVMTI tests fails on jdk5.0 with hs14
dcubed
parents: 1
diff changeset
   241
                                    int * micro);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   242
489c9b5090e2 Initial load
duke
parents:
diff changeset
   243
  // single stepping management methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
   244
  static void at_single_stepping_point(JavaThread *thread, methodOop method, address location) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   245
  static void expose_single_stepping(JavaThread *thread) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   246
  static bool hide_single_stepping(JavaThread *thread) KERNEL_RETURN_(return false;);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   247
489c9b5090e2 Initial load
duke
parents:
diff changeset
   248
  // Methods that notify the debugger that something interesting has happened in the VM.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   249
  static void post_vm_start              ();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   250
  static void post_vm_initialized        ();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   251
  static void post_vm_death              ();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   252
489c9b5090e2 Initial load
duke
parents:
diff changeset
   253
  static void post_single_step           (JavaThread *thread, methodOop method, address location) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   254
  static void post_raw_breakpoint        (JavaThread *thread, methodOop method, address location) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   255
489c9b5090e2 Initial load
duke
parents:
diff changeset
   256
  static void post_exception_throw       (JavaThread *thread, methodOop method, address location, oop exception) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   257
  static void notice_unwind_due_to_exception (JavaThread *thread, methodOop method, address location, oop exception, bool in_handler_frame) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   258
489c9b5090e2 Initial load
duke
parents:
diff changeset
   259
  static oop jni_GetField_probe          (JavaThread *thread, jobject jobj,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   260
    oop obj, klassOop klass, jfieldID fieldID, bool is_static)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   261
    KERNEL_RETURN_(return NULL;);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   262
  static oop jni_GetField_probe_nh       (JavaThread *thread, jobject jobj,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   263
    oop obj, klassOop klass, jfieldID fieldID, bool is_static)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   264
    KERNEL_RETURN_(return NULL;);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   265
  static void post_field_access_by_jni   (JavaThread *thread, oop obj,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   266
    klassOop klass, jfieldID fieldID, bool is_static) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   267
  static void post_field_access          (JavaThread *thread, methodOop method,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   268
    address location, KlassHandle field_klass, Handle object, jfieldID field) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   269
  static oop jni_SetField_probe          (JavaThread *thread, jobject jobj,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   270
    oop obj, klassOop klass, jfieldID fieldID, bool is_static, char sig_type,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   271
    jvalue *value) KERNEL_RETURN_(return NULL;);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   272
  static oop jni_SetField_probe_nh       (JavaThread *thread, jobject jobj,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   273
    oop obj, klassOop klass, jfieldID fieldID, bool is_static, char sig_type,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   274
    jvalue *value) KERNEL_RETURN_(return NULL;);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   275
  static void post_field_modification_by_jni(JavaThread *thread, oop obj,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   276
    klassOop klass, jfieldID fieldID, bool is_static, char sig_type,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   277
    jvalue *value);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   278
  static void post_raw_field_modification(JavaThread *thread, methodOop method,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   279
    address location, KlassHandle field_klass, Handle object, jfieldID field,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   280
    char sig_type, jvalue *value) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   281
489c9b5090e2 Initial load
duke
parents:
diff changeset
   282
  static void post_method_entry          (JavaThread *thread, methodOop method, frame current_frame) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   283
  static void post_method_exit           (JavaThread *thread, methodOop method, frame current_frame) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   284
489c9b5090e2 Initial load
duke
parents:
diff changeset
   285
  static void post_class_load            (JavaThread *thread, klassOop klass) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   286
  static void post_class_unload          (klassOop klass) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   287
  static void post_class_prepare         (JavaThread *thread, klassOop klass) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   288
489c9b5090e2 Initial load
duke
parents:
diff changeset
   289
  static void post_thread_start          (JavaThread *thread) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   290
  static void post_thread_end            (JavaThread *thread) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   291
489c9b5090e2 Initial load
duke
parents:
diff changeset
   292
  // Support for java.lang.instrument agent loading.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   293
  static bool _should_post_class_file_load_hook;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   294
  inline static void set_should_post_class_file_load_hook(bool on)     { _should_post_class_file_load_hook = on;  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   295
  inline static bool should_post_class_file_load_hook()           { return _should_post_class_file_load_hook; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   296
  static void post_class_file_load_hook(symbolHandle h_name, Handle class_loader,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   297
                                        Handle h_protection_domain,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   298
                                        unsigned char **data_ptr, unsigned char **end_ptr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   299
                                        unsigned char **cached_data_ptr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   300
                                        jint *cached_length_ptr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   301
  static void post_native_method_bind(methodOop method, address* function_ptr) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   302
  static void post_compiled_method_load(nmethod *nm) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   303
  static void post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   304
5700
a78767273dc1 6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents: 5353
diff changeset
   305
  // used to post a CompiledMethodUnload event
a78767273dc1 6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents: 5353
diff changeset
   306
  static void post_compiled_method_unload(jmethodID mid, const void *code_begin) KERNEL_RETURN;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   307
489c9b5090e2 Initial load
duke
parents:
diff changeset
   308
  // similiar to post_dynamic_code_generated except that it can be used to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   309
  // post a DynamicCodeGenerated event while holding locks in the VM. Any event
489c9b5090e2 Initial load
duke
parents:
diff changeset
   310
  // posted using this function is recorded by the enclosing event collector
489c9b5090e2 Initial load
duke
parents:
diff changeset
   311
  // -- JvmtiDynamicCodeEventCollector.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   312
  static void post_dynamic_code_generated_while_holding_locks(const char* name, address code_begin, address code_end) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   313
489c9b5090e2 Initial load
duke
parents:
diff changeset
   314
  static void post_garbage_collection_finish() KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   315
  static void post_garbage_collection_start() KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   316
  static void post_data_dump() KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   317
  static void post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   318
  static void post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   319
  static void post_monitor_wait(JavaThread *thread, oop obj, jlong timeout) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   320
  static void post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   321
  static void post_object_free(JvmtiEnv* env, jlong tag) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   322
  static void post_resource_exhausted(jint resource_exhausted_flags, const char* detail) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   323
  static void record_vm_internal_object_allocation(oop object) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   324
  // Post objects collected by vm_object_alloc_event_collector.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   325
  static void post_vm_object_alloc(JavaThread *thread, oop object) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   326
  // Collects vm internal objects for later event posting.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   327
  inline static void vm_object_alloc_event_collector(oop object) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   328
    if (should_post_vm_object_alloc()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   329
      record_vm_internal_object_allocation(object);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   330
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   331
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   332
489c9b5090e2 Initial load
duke
parents:
diff changeset
   333
  static void cleanup_thread             (JavaThread* thread) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   334
489c9b5090e2 Initial load
duke
parents:
diff changeset
   335
  static void oops_do(OopClosure* f) KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   336
489c9b5090e2 Initial load
duke
parents:
diff changeset
   337
  static void transition_pending_onload_raw_monitors() KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   338
489c9b5090e2 Initial load
duke
parents:
diff changeset
   339
#ifndef SERVICES_KERNEL
489c9b5090e2 Initial load
duke
parents:
diff changeset
   340
  // attach support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   341
  static jint load_agent_library(AttachOperation* op, outputStream* out);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   342
#endif // SERVICES_KERNEL
489c9b5090e2 Initial load
duke
parents:
diff changeset
   343
489c9b5090e2 Initial load
duke
parents:
diff changeset
   344
  // SetNativeMethodPrefix support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   345
  static char** get_all_native_method_prefixes(int* count_ptr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   346
489c9b5090e2 Initial load
duke
parents:
diff changeset
   347
  // call after CMS has completed referencing processing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   348
  static void cms_ref_processing_epilogue() KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   349
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   350
489c9b5090e2 Initial load
duke
parents:
diff changeset
   351
// Support class used by JvmtiDynamicCodeEventCollector and others. It
489c9b5090e2 Initial load
duke
parents:
diff changeset
   352
// describes a single code blob by name and address range.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   353
class JvmtiCodeBlobDesc : public CHeapObj {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   354
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   355
  char _name[64];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   356
  address _code_begin;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   357
  address _code_end;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   358
489c9b5090e2 Initial load
duke
parents:
diff changeset
   359
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   360
  JvmtiCodeBlobDesc(const char *name, address code_begin, address code_end) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   361
    assert(name != NULL, "all code blobs must be named");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   362
    strncpy(_name, name, sizeof(_name));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   363
    _name[sizeof(_name)-1] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   364
    _code_begin = code_begin;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   365
    _code_end = code_end;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
  char* name()                  { return _name; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
  address code_begin()          { return _code_begin; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
  address code_end()            { return _code_end; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
// JvmtiEventCollector is a helper class to setup thread for
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
// event collection.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
class JvmtiEventCollector : public StackObj {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
  JvmtiEventCollector* _prev;  // Save previous one to support nested event collector.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
  void setup_jvmti_thread_state(); // Set this collector in current thread.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
  void unset_jvmti_thread_state(); // Reset previous collector in current thread.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
  virtual bool is_dynamic_code_event()   { return false; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
  virtual bool is_vm_object_alloc_event(){ return false; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   383
  JvmtiEventCollector *get_prev()        { return _prev; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
489c9b5090e2 Initial load
duke
parents:
diff changeset
   386
// A JvmtiDynamicCodeEventCollector is a helper class for the JvmtiExport
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
// interface. It collects "dynamic code generated" events that are posted
489c9b5090e2 Initial load
duke
parents:
diff changeset
   388
// while holding locks. When the event collector goes out of scope the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   389
// events will be posted.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
// Usage :-
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
// {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   394
//   JvmtiDynamicCodeEventCollector event_collector;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
//   :
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
//   { MutexLocker ml(...)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
//     :
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
//     JvmtiExport::post_dynamic_code_generated_while_holding_locks(...)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
//   }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
//   // event collector goes out of scope => post events to profiler.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
// }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
class JvmtiDynamicCodeEventCollector : public JvmtiEventCollector {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
  GrowableArray<JvmtiCodeBlobDesc*>* _code_blobs;           // collected code blob events
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
  friend class JvmtiExport;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
  void register_stub(const char* name, address start, address end);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
  JvmtiDynamicCodeEventCollector()  KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
  ~JvmtiDynamicCodeEventCollector() KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
  bool is_dynamic_code_event()   { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
// Used to record vm internally allocated object oops and post
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
// vm object alloc event for objects visible to java world.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
// Constructor enables JvmtiThreadState flag and all vm allocated
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
// objects are recorded in a growable array. When destructor is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
// called the vm object alloc event is posted for each objects
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
// visible to java world.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
// See jvm.cpp file for its usage.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
class JvmtiVMObjectAllocEventCollector : public JvmtiEventCollector {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
  GrowableArray<oop>* _allocated; // field to record vm internally allocated object oop.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
  bool _enable;                   // This flag is enabled in constructor and disabled
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
                                  // in destructor before posting event. To avoid
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
                                  // collection of objects allocated while running java code inside
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
                                  // agent post_vm_object_alloc() event handler.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
  //GC support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
  void oops_do(OopClosure* f);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
  friend class JvmtiExport;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
  // Record vm allocated object oop.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
  inline void record_allocation(oop obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
  //GC support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
  static void oops_do_for_all_threads(OopClosure* f);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  JvmtiVMObjectAllocEventCollector()  KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
  ~JvmtiVMObjectAllocEventCollector() KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
  bool is_vm_object_alloc_event()   { return true; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
  bool is_enabled()                 { return _enable; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
  void set_enabled(bool on)         { _enable = on; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
// Marker class to disable the posting of VMObjectAlloc events
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
// within its scope.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
// Usage :-
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
// {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
//   NoJvmtiVMObjectAllocMark njm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
//   :
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
//   // VMObjAlloc event will not be posted
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
//   JvmtiExport::vm_object_alloc_event_collector(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
//   :
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
// }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
class NoJvmtiVMObjectAllocMark : public StackObj {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
  // enclosing collector if enabled, NULL otherwise
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  JvmtiVMObjectAllocEventCollector *_collector;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
  bool was_enabled()    { return _collector != NULL; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
  NoJvmtiVMObjectAllocMark() KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
  ~NoJvmtiVMObjectAllocMark() KERNEL_RETURN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
// Base class for reporting GC events to JVMTI.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
class JvmtiGCMarker : public StackObj {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
  bool _full;                           // marks a "full" GC
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
  unsigned int _invocation_count;       // GC invocation count
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
 protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  JvmtiGCMarker(bool full) KERNEL_RETURN;       // protected
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  ~JvmtiGCMarker() KERNEL_RETURN;               // protected
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
// Support class used to report GC events to JVMTI. The class is stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
// allocated and should be placed in the doit() implementation of all
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
// vm operations that do a stop-the-world GC for failed allocation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
// Usage :-
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
// void VM_GenCollectForAllocation::doit() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
//   JvmtiGCForAllocationMarker jgcm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
//   :
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
// }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
// If jvmti is not enabled the constructor and destructor is essentially
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
// a no-op (no overhead).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
class JvmtiGCForAllocationMarker : public JvmtiGCMarker {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
  JvmtiGCForAllocationMarker() : JvmtiGCMarker(false) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
// Support class used to report GC events to JVMTI. The class is stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
// allocated and should be placed in the doit() implementation of all
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
// vm operations that do a "full" stop-the-world GC. This class differs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
// from JvmtiGCForAllocationMarker in that this class assumes that a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
// "full" GC will happen.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
// Usage :-
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
// void VM_GenCollectFull::doit() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
//   JvmtiGCFullMarker jgcm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
//   :
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
// }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
class JvmtiGCFullMarker : public JvmtiGCMarker {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
  JvmtiGCFullMarker() : JvmtiGCMarker(true) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
// JvmtiHideSingleStepping is a helper class for hiding
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
// internal single step events.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
class JvmtiHideSingleStepping : public StackObj {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
  bool         _single_step_hidden;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
  JavaThread * _thread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
  JvmtiHideSingleStepping(JavaThread * thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
    assert(thread != NULL, "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
    _single_step_hidden = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
    _thread = thread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
    if (JvmtiExport::should_post_single_step()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
      _single_step_hidden = JvmtiExport::hide_single_stepping(_thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
  ~JvmtiHideSingleStepping() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
    if (_single_step_hidden) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
      JvmtiExport::expose_single_stepping(_thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
#endif   /* _JAVA_JVMTIEXPORT_H_ */