src/share/vm/prims/jvmtiExport.hpp

Mon, 12 Nov 2012 16:15:05 -0500

author
hseigel
date
Mon, 12 Nov 2012 16:15:05 -0500
changeset 4278
070d523b96a7
parent 4165
fb19af007ffc
child 4267
bd7a7ce2e264
permissions
-rw-r--r--

8001471: Klass::cast() does nothing
Summary: Remove function Klass::cast() and calls to it.
Reviewed-by: dholmes, coleenp

duke@435 1 /*
sspitsyn@3638 2 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #ifndef SHARE_VM_PRIMS_JVMTIEXPORT_HPP
stefank@2314 26 #define SHARE_VM_PRIMS_JVMTIEXPORT_HPP
stefank@2314 27
stefank@2314 28 #include "jvmtifiles/jvmti.h"
stefank@2314 29 #include "memory/allocation.hpp"
stefank@2314 30 #include "memory/iterator.hpp"
stefank@2314 31 #include "oops/oop.hpp"
stefank@2314 32 #include "oops/oopsHierarchy.hpp"
stefank@2314 33 #include "runtime/frame.hpp"
stefank@2314 34 #include "runtime/handles.hpp"
stefank@2314 35 #include "utilities/globalDefinitions.hpp"
stefank@2314 36 #include "utilities/growableArray.hpp"
duke@435 37
stefank@2325 38 // Must be included after jvmti.h.
stefank@2325 39 #include "code/jvmticmlr.h"
stefank@2325 40
duke@435 41 // Forward declarations
duke@435 42
duke@435 43 class JvmtiEventControllerPrivate;
duke@435 44 class JvmtiManageCapabilities;
duke@435 45 class JvmtiEnv;
duke@435 46 class JvmtiThreadState;
duke@435 47 class AttachOperation;
duke@435 48
duke@435 49 #define JVMTI_SUPPORT_FLAG(key) \
duke@435 50 private: \
jprovino@4165 51 static bool _##key; \
duke@435 52 public: \
jprovino@4165 53 inline static void set_##key(bool on) { \
jprovino@4165 54 JVMTI_ONLY(_##key = (on != 0)); \
jprovino@4165 55 NOT_JVMTI(report_unsupported(on)); \
jprovino@4165 56 } \
jprovino@4165 57 inline static bool key() { \
jprovino@4165 58 JVMTI_ONLY(return _##key); \
jprovino@4165 59 NOT_JVMTI(return false); \
jprovino@4165 60 }
duke@435 61
duke@435 62
duke@435 63 // This class contains the JVMTI interface for the rest of hotspot.
duke@435 64 //
duke@435 65 class JvmtiExport : public AllStatic {
never@3138 66 friend class VMStructs;
duke@435 67 private:
jprovino@4165 68
jprovino@4165 69 #if INCLUDE_JVMTI
duke@435 70 static int _field_access_count;
duke@435 71 static int _field_modification_count;
duke@435 72
duke@435 73 static bool _can_access_local_variables;
duke@435 74 static bool _can_hotswap_or_post_breakpoint;
duke@435 75 static bool _can_modify_any_class;
duke@435 76 static bool _can_walk_any_space;
jprovino@4165 77 #endif // INCLUDE_JVMTI
duke@435 78
duke@435 79 JVMTI_SUPPORT_FLAG(can_get_source_debug_extension)
duke@435 80 JVMTI_SUPPORT_FLAG(can_maintain_original_method_order)
duke@435 81 JVMTI_SUPPORT_FLAG(can_post_interpreter_events)
dcubed@1648 82 JVMTI_SUPPORT_FLAG(can_post_on_exceptions)
duke@435 83 JVMTI_SUPPORT_FLAG(can_post_breakpoint)
duke@435 84 JVMTI_SUPPORT_FLAG(can_post_field_access)
duke@435 85 JVMTI_SUPPORT_FLAG(can_post_field_modification)
duke@435 86 JVMTI_SUPPORT_FLAG(can_post_method_entry)
duke@435 87 JVMTI_SUPPORT_FLAG(can_post_method_exit)
duke@435 88 JVMTI_SUPPORT_FLAG(can_pop_frame)
duke@435 89 JVMTI_SUPPORT_FLAG(can_force_early_return)
duke@435 90
duke@435 91 friend class JvmtiEventControllerPrivate; // should only modify these flags
duke@435 92 JVMTI_SUPPORT_FLAG(should_post_single_step)
duke@435 93 JVMTI_SUPPORT_FLAG(should_post_field_access)
duke@435 94 JVMTI_SUPPORT_FLAG(should_post_field_modification)
duke@435 95 JVMTI_SUPPORT_FLAG(should_post_class_load)
duke@435 96 JVMTI_SUPPORT_FLAG(should_post_class_prepare)
duke@435 97 JVMTI_SUPPORT_FLAG(should_post_class_unload)
duke@435 98 JVMTI_SUPPORT_FLAG(should_post_native_method_bind)
duke@435 99 JVMTI_SUPPORT_FLAG(should_post_compiled_method_load)
duke@435 100 JVMTI_SUPPORT_FLAG(should_post_compiled_method_unload)
duke@435 101 JVMTI_SUPPORT_FLAG(should_post_dynamic_code_generated)
duke@435 102 JVMTI_SUPPORT_FLAG(should_post_monitor_contended_enter)
duke@435 103 JVMTI_SUPPORT_FLAG(should_post_monitor_contended_entered)
duke@435 104 JVMTI_SUPPORT_FLAG(should_post_monitor_wait)
duke@435 105 JVMTI_SUPPORT_FLAG(should_post_monitor_waited)
duke@435 106 JVMTI_SUPPORT_FLAG(should_post_data_dump)
duke@435 107 JVMTI_SUPPORT_FLAG(should_post_garbage_collection_start)
duke@435 108 JVMTI_SUPPORT_FLAG(should_post_garbage_collection_finish)
dcubed@1648 109 JVMTI_SUPPORT_FLAG(should_post_on_exceptions)
duke@435 110
duke@435 111 // ------ the below maybe don't have to be (but are for now)
duke@435 112 // fixed conditions here ------------
duke@435 113 // any events can be enabled
duke@435 114 JVMTI_SUPPORT_FLAG(should_post_thread_life)
duke@435 115 JVMTI_SUPPORT_FLAG(should_post_object_free)
duke@435 116 JVMTI_SUPPORT_FLAG(should_post_resource_exhausted)
duke@435 117
duke@435 118 // we are holding objects on the heap - need to talk to GC - e.g.
duke@435 119 // breakpoint info
duke@435 120 JVMTI_SUPPORT_FLAG(should_clean_up_heap_objects)
duke@435 121 JVMTI_SUPPORT_FLAG(should_post_vm_object_alloc)
duke@435 122
duke@435 123 // If flag cannot be implemented, give an error if on=true
duke@435 124 static void report_unsupported(bool on);
duke@435 125
duke@435 126 // these should only be called by the friend class
duke@435 127 friend class JvmtiManageCapabilities;
jprovino@4165 128 inline static void set_can_modify_any_class(bool on) {
jprovino@4165 129 JVMTI_ONLY(_can_modify_any_class = (on != 0);)
jprovino@4165 130 }
jprovino@4165 131 inline static void set_can_access_local_variables(bool on) {
jprovino@4165 132 JVMTI_ONLY(_can_access_local_variables = (on != 0);)
jprovino@4165 133 }
jprovino@4165 134 inline static void set_can_hotswap_or_post_breakpoint(bool on) {
jprovino@4165 135 JVMTI_ONLY(_can_hotswap_or_post_breakpoint = (on != 0);)
jprovino@4165 136 }
jprovino@4165 137 inline static void set_can_walk_any_space(bool on) {
jprovino@4165 138 JVMTI_ONLY(_can_walk_any_space = (on != 0);)
jprovino@4165 139 }
duke@435 140
duke@435 141 enum {
duke@435 142 JVMTI_VERSION_MASK = 0x70000000,
duke@435 143 JVMTI_VERSION_VALUE = 0x30000000,
duke@435 144 JVMDI_VERSION_VALUE = 0x20000000
duke@435 145 };
duke@435 146
coleenp@4037 147 static void post_field_modification(JavaThread *thread, Method* method, address location,
duke@435 148 KlassHandle field_klass, Handle object, jfieldID field,
duke@435 149 char sig_type, jvalue *value);
duke@435 150
duke@435 151
duke@435 152 // posts a DynamicCodeGenerated event (internal/private implementation).
duke@435 153 // The public post_dynamic_code_generated* functions make use of the
kamg@2583 154 // internal implementation. Also called from JvmtiDeferredEvent::post()
jprovino@4165 155 static void post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) NOT_JVMTI_RETURN;
duke@435 156
kamg@2583 157 private:
duke@435 158
duke@435 159 // GenerateEvents support to allow posting of CompiledMethodLoad and
duke@435 160 // DynamicCodeGenerated events for a given environment.
duke@435 161 friend class JvmtiCodeBlobEvents;
duke@435 162
duke@435 163 static void post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length,
duke@435 164 const void *code_begin, const jint map_length,
jprovino@4165 165 const jvmtiAddrLocationMap* map) NOT_JVMTI_RETURN;
duke@435 166 static void post_dynamic_code_generated(JvmtiEnv* env, const char *name, const void *code_begin,
jprovino@4165 167 const void *code_end) NOT_JVMTI_RETURN;
duke@435 168
duke@435 169 // The RedefineClasses() API breaks some invariants in the "regular"
duke@435 170 // system. For example, there are sanity checks when GC'ing nmethods
duke@435 171 // that require the containing class to be unloading. However, when a
duke@435 172 // method is redefined, the old method and nmethod can become GC'able
duke@435 173 // without the containing class unloading. The state of becoming
duke@435 174 // GC'able can be asynchronous to the RedefineClasses() call since
duke@435 175 // the old method may still be running and cannot be GC'ed until
duke@435 176 // after all old invocations have finished. Additionally, a method
duke@435 177 // that has not been redefined may have an nmethod that depends on
duke@435 178 // the redefined method. The dependent nmethod will get deopted in
duke@435 179 // this case and may also be GC'able without the containing class
duke@435 180 // being unloaded.
duke@435 181 //
duke@435 182 // This flag indicates whether RedefineClasses() has ever redefined
duke@435 183 // one or more classes during the lifetime of the VM. The flag should
duke@435 184 // only be set by the friend class and can be queried by other sub
duke@435 185 // systems as needed to relax invariant checks.
duke@435 186 static bool _has_redefined_a_class;
duke@435 187 friend class VM_RedefineClasses;
duke@435 188 inline static void set_has_redefined_a_class() {
jprovino@4165 189 JVMTI_ONLY(_has_redefined_a_class = true;)
duke@435 190 }
duke@435 191 // Flag to indicate if the compiler has recorded all dependencies. When the
duke@435 192 // can_redefine_classes capability is enabled in the OnLoad phase then the compiler
duke@435 193 // records all dependencies from startup. However if the capability is first
duke@435 194 // enabled some time later then the dependencies recorded by the compiler
duke@435 195 // are incomplete. This flag is used by RedefineClasses to know if the
duke@435 196 // dependency information is complete or not.
duke@435 197 static bool _all_dependencies_are_recorded;
duke@435 198
duke@435 199 public:
duke@435 200 inline static bool has_redefined_a_class() {
jprovino@4165 201 JVMTI_ONLY(return _has_redefined_a_class);
jprovino@4165 202 NOT_JVMTI(return false);
duke@435 203 }
duke@435 204
duke@435 205 inline static bool all_dependencies_are_recorded() {
duke@435 206 return _all_dependencies_are_recorded;
duke@435 207 }
duke@435 208
duke@435 209 inline static void set_all_dependencies_are_recorded(bool on) {
duke@435 210 _all_dependencies_are_recorded = (on != 0);
duke@435 211 }
duke@435 212
duke@435 213
duke@435 214 // let JVMTI know that the JVM_OnLoad code is running
jprovino@4165 215 static void enter_onload_phase() NOT_JVMTI_RETURN;
duke@435 216
duke@435 217 // let JVMTI know that the VM isn't up yet (and JVM_OnLoad code isn't running)
jprovino@4165 218 static void enter_primordial_phase() NOT_JVMTI_RETURN;
duke@435 219
duke@435 220 // let JVMTI know that the VM isn't up yet but JNI is live
jprovino@4165 221 static void enter_start_phase() NOT_JVMTI_RETURN;
duke@435 222
duke@435 223 // let JVMTI know that the VM is fully up and running now
jprovino@4165 224 static void enter_live_phase() NOT_JVMTI_RETURN;
duke@435 225
duke@435 226 // ------ can_* conditions (below) are set at OnLoad and never changed ------------
jprovino@4165 227 inline static bool can_modify_any_class() {
jprovino@4165 228 JVMTI_ONLY(return _can_modify_any_class);
jprovino@4165 229 NOT_JVMTI(return false);
jprovino@4165 230 }
jprovino@4165 231 inline static bool can_access_local_variables() {
jprovino@4165 232 JVMTI_ONLY(return _can_access_local_variables);
jprovino@4165 233 NOT_JVMTI(return false);
jprovino@4165 234 }
jprovino@4165 235 inline static bool can_hotswap_or_post_breakpoint() {
jprovino@4165 236 JVMTI_ONLY(return _can_hotswap_or_post_breakpoint);
jprovino@4165 237 NOT_JVMTI(return false);
jprovino@4165 238 }
jprovino@4165 239 inline static bool can_walk_any_space() {
jprovino@4165 240 JVMTI_ONLY(return _can_walk_any_space);
jprovino@4165 241 NOT_JVMTI(return false);
jprovino@4165 242 }
duke@435 243
duke@435 244 // field access management
jprovino@4165 245 static address get_field_access_count_addr() NOT_JVMTI_RETURN_(0);
duke@435 246
duke@435 247 // field modification management
jprovino@4165 248 static address get_field_modification_count_addr() NOT_JVMTI_RETURN_(0);
duke@435 249
duke@435 250 // -----------------
duke@435 251
jprovino@4165 252 static bool is_jvmti_version(jint version) {
jprovino@4165 253 JVMTI_ONLY(return (version & JVMTI_VERSION_MASK) == JVMTI_VERSION_VALUE);
jprovino@4165 254 NOT_JVMTI(return false);
jprovino@4165 255 }
jprovino@4165 256 static bool is_jvmdi_version(jint version) {
jprovino@4165 257 JVMTI_ONLY(return (version & JVMTI_VERSION_MASK) == JVMDI_VERSION_VALUE);
jprovino@4165 258 NOT_JVMTI(return false);
jprovino@4165 259 }
jprovino@4165 260 static jint get_jvmti_interface(JavaVM *jvm, void **penv, jint version) NOT_JVMTI_RETURN_(0);
dcubed@1556 261 static void decode_version_values(jint version, int * major, int * minor,
jprovino@4165 262 int * micro) NOT_JVMTI_RETURN;
duke@435 263
duke@435 264 // single stepping management methods
jprovino@4165 265 static void at_single_stepping_point(JavaThread *thread, Method* method, address location) NOT_JVMTI_RETURN;
jprovino@4165 266 static void expose_single_stepping(JavaThread *thread) NOT_JVMTI_RETURN;
jprovino@4165 267 static bool hide_single_stepping(JavaThread *thread) NOT_JVMTI_RETURN_(false);
duke@435 268
duke@435 269 // Methods that notify the debugger that something interesting has happened in the VM.
jprovino@4165 270 static void post_vm_start () NOT_JVMTI_RETURN;
jprovino@4165 271 static void post_vm_initialized () NOT_JVMTI_RETURN;
jprovino@4165 272 static void post_vm_death () NOT_JVMTI_RETURN;
duke@435 273
jprovino@4165 274 static void post_single_step (JavaThread *thread, Method* method, address location) NOT_JVMTI_RETURN;
jprovino@4165 275 static void post_raw_breakpoint (JavaThread *thread, Method* method, address location) NOT_JVMTI_RETURN;
duke@435 276
jprovino@4165 277 static void post_exception_throw (JavaThread *thread, Method* method, address location, oop exception) NOT_JVMTI_RETURN;
jprovino@4165 278 static void notice_unwind_due_to_exception (JavaThread *thread, Method* method, address location, oop exception, bool in_handler_frame) NOT_JVMTI_RETURN;
duke@435 279
duke@435 280 static oop jni_GetField_probe (JavaThread *thread, jobject jobj,
coleenp@4037 281 oop obj, Klass* klass, jfieldID fieldID, bool is_static)
jprovino@4165 282 NOT_JVMTI_RETURN_(NULL);
duke@435 283 static oop jni_GetField_probe_nh (JavaThread *thread, jobject jobj,
coleenp@4037 284 oop obj, Klass* klass, jfieldID fieldID, bool is_static)
jprovino@4165 285 NOT_JVMTI_RETURN_(NULL);
duke@435 286 static void post_field_access_by_jni (JavaThread *thread, oop obj,
jprovino@4165 287 Klass* klass, jfieldID fieldID, bool is_static) NOT_JVMTI_RETURN;
coleenp@4037 288 static void post_field_access (JavaThread *thread, Method* method,
jprovino@4165 289 address location, KlassHandle field_klass, Handle object, jfieldID field) NOT_JVMTI_RETURN;
duke@435 290 static oop jni_SetField_probe (JavaThread *thread, jobject jobj,
coleenp@4037 291 oop obj, Klass* klass, jfieldID fieldID, bool is_static, char sig_type,
jprovino@4165 292 jvalue *value) NOT_JVMTI_RETURN_(NULL);
duke@435 293 static oop jni_SetField_probe_nh (JavaThread *thread, jobject jobj,
coleenp@4037 294 oop obj, Klass* klass, jfieldID fieldID, bool is_static, char sig_type,
jprovino@4165 295 jvalue *value) NOT_JVMTI_RETURN_(NULL);
duke@435 296 static void post_field_modification_by_jni(JavaThread *thread, oop obj,
coleenp@4037 297 Klass* klass, jfieldID fieldID, bool is_static, char sig_type,
duke@435 298 jvalue *value);
coleenp@4037 299 static void post_raw_field_modification(JavaThread *thread, Method* method,
duke@435 300 address location, KlassHandle field_klass, Handle object, jfieldID field,
jprovino@4165 301 char sig_type, jvalue *value) NOT_JVMTI_RETURN;
duke@435 302
jprovino@4165 303 static void post_method_entry (JavaThread *thread, Method* method, frame current_frame) NOT_JVMTI_RETURN;
jprovino@4165 304 static void post_method_exit (JavaThread *thread, Method* method, frame current_frame) NOT_JVMTI_RETURN;
duke@435 305
jprovino@4165 306 static void post_class_load (JavaThread *thread, Klass* klass) NOT_JVMTI_RETURN;
jprovino@4165 307 static void post_class_unload (Klass* klass) NOT_JVMTI_RETURN;
jprovino@4165 308 static void post_class_prepare (JavaThread *thread, Klass* klass) NOT_JVMTI_RETURN;
duke@435 309
jprovino@4165 310 static void post_thread_start (JavaThread *thread) NOT_JVMTI_RETURN;
jprovino@4165 311 static void post_thread_end (JavaThread *thread) NOT_JVMTI_RETURN;
duke@435 312
duke@435 313 // Support for java.lang.instrument agent loading.
duke@435 314 static bool _should_post_class_file_load_hook;
duke@435 315 inline static void set_should_post_class_file_load_hook(bool on) { _should_post_class_file_load_hook = on; }
jprovino@4165 316 inline static bool should_post_class_file_load_hook() {
jprovino@4165 317 JVMTI_ONLY(return _should_post_class_file_load_hook);
jprovino@4165 318 NOT_JVMTI(return false;)
jprovino@4165 319 }
coleenp@2497 320 static void post_class_file_load_hook(Symbol* h_name, Handle class_loader,
duke@435 321 Handle h_protection_domain,
duke@435 322 unsigned char **data_ptr, unsigned char **end_ptr,
duke@435 323 unsigned char **cached_data_ptr,
jprovino@4165 324 jint *cached_length_ptr) NOT_JVMTI_RETURN;
jprovino@4165 325 static void post_native_method_bind(Method* method, address* function_ptr) NOT_JVMTI_RETURN;
jprovino@4165 326 static void post_compiled_method_load(nmethod *nm) NOT_JVMTI_RETURN;
jprovino@4165 327 static void post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) NOT_JVMTI_RETURN;
duke@435 328
never@1932 329 // used to post a CompiledMethodUnload event
jprovino@4165 330 static void post_compiled_method_unload(jmethodID mid, const void *code_begin) NOT_JVMTI_RETURN;
duke@435 331
duke@435 332 // similiar to post_dynamic_code_generated except that it can be used to
duke@435 333 // post a DynamicCodeGenerated event while holding locks in the VM. Any event
duke@435 334 // posted using this function is recorded by the enclosing event collector
duke@435 335 // -- JvmtiDynamicCodeEventCollector.
jprovino@4165 336 static void post_dynamic_code_generated_while_holding_locks(const char* name, address code_begin, address code_end) NOT_JVMTI_RETURN;
duke@435 337
jprovino@4165 338 static void post_garbage_collection_finish() NOT_JVMTI_RETURN;
jprovino@4165 339 static void post_garbage_collection_start() NOT_JVMTI_RETURN;
jprovino@4165 340 static void post_data_dump() NOT_JVMTI_RETURN;
jprovino@4165 341 static void post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) NOT_JVMTI_RETURN;
jprovino@4165 342 static void post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) NOT_JVMTI_RETURN;
jprovino@4165 343 static void post_monitor_wait(JavaThread *thread, oop obj, jlong timeout) NOT_JVMTI_RETURN;
jprovino@4165 344 static void post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) NOT_JVMTI_RETURN;
jprovino@4165 345 static void post_object_free(JvmtiEnv* env, jlong tag) NOT_JVMTI_RETURN;
jprovino@4165 346 static void post_resource_exhausted(jint resource_exhausted_flags, const char* detail) NOT_JVMTI_RETURN;
jprovino@4165 347 static void record_vm_internal_object_allocation(oop object) NOT_JVMTI_RETURN;
duke@435 348 // Post objects collected by vm_object_alloc_event_collector.
jprovino@4165 349 static void post_vm_object_alloc(JavaThread *thread, oop object) NOT_JVMTI_RETURN;
duke@435 350 // Collects vm internal objects for later event posting.
duke@435 351 inline static void vm_object_alloc_event_collector(oop object) {
duke@435 352 if (should_post_vm_object_alloc()) {
duke@435 353 record_vm_internal_object_allocation(object);
duke@435 354 }
duke@435 355 }
sspitsyn@3638 356 inline static void post_array_size_exhausted() {
sspitsyn@3638 357 if (should_post_resource_exhausted()) {
sspitsyn@3638 358 post_resource_exhausted(JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
sspitsyn@3638 359 "Requested array size exceeds VM limit");
sspitsyn@3638 360 }
sspitsyn@3638 361 }
duke@435 362
jprovino@4165 363 static void cleanup_thread (JavaThread* thread) NOT_JVMTI_RETURN;
duke@435 364
jprovino@4165 365 static void oops_do(OopClosure* f) NOT_JVMTI_RETURN;
jprovino@4165 366 static void weak_oops_do(BoolObjectClosure* b, OopClosure* f) NOT_JVMTI_RETURN;
jprovino@4165 367 static void gc_epilogue() NOT_JVMTI_RETURN;
duke@435 368
jprovino@4165 369 static void transition_pending_onload_raw_monitors() NOT_JVMTI_RETURN;
duke@435 370
duke@435 371 // attach support
jprovino@4165 372 static jint load_agent_library(AttachOperation* op, outputStream* out) NOT_JVMTI_RETURN_(JNI_ERR);
duke@435 373
duke@435 374 // SetNativeMethodPrefix support
jprovino@4165 375 static char** get_all_native_method_prefixes(int* count_ptr) NOT_JVMTI_RETURN_(NULL);
duke@435 376 };
duke@435 377
duke@435 378 // Support class used by JvmtiDynamicCodeEventCollector and others. It
duke@435 379 // describes a single code blob by name and address range.
zgu@3900 380 class JvmtiCodeBlobDesc : public CHeapObj<mtInternal> {
duke@435 381 private:
duke@435 382 char _name[64];
duke@435 383 address _code_begin;
duke@435 384 address _code_end;
duke@435 385
duke@435 386 public:
duke@435 387 JvmtiCodeBlobDesc(const char *name, address code_begin, address code_end) {
duke@435 388 assert(name != NULL, "all code blobs must be named");
duke@435 389 strncpy(_name, name, sizeof(_name));
duke@435 390 _name[sizeof(_name)-1] = '\0';
duke@435 391 _code_begin = code_begin;
duke@435 392 _code_end = code_end;
duke@435 393 }
duke@435 394 char* name() { return _name; }
duke@435 395 address code_begin() { return _code_begin; }
duke@435 396 address code_end() { return _code_end; }
duke@435 397 };
duke@435 398
duke@435 399 // JvmtiEventCollector is a helper class to setup thread for
duke@435 400 // event collection.
duke@435 401 class JvmtiEventCollector : public StackObj {
duke@435 402 private:
duke@435 403 JvmtiEventCollector* _prev; // Save previous one to support nested event collector.
duke@435 404
duke@435 405 public:
duke@435 406 void setup_jvmti_thread_state(); // Set this collector in current thread.
duke@435 407 void unset_jvmti_thread_state(); // Reset previous collector in current thread.
duke@435 408 virtual bool is_dynamic_code_event() { return false; }
duke@435 409 virtual bool is_vm_object_alloc_event(){ return false; }
duke@435 410 JvmtiEventCollector *get_prev() { return _prev; }
duke@435 411 };
duke@435 412
duke@435 413 // A JvmtiDynamicCodeEventCollector is a helper class for the JvmtiExport
duke@435 414 // interface. It collects "dynamic code generated" events that are posted
duke@435 415 // while holding locks. When the event collector goes out of scope the
duke@435 416 // events will be posted.
duke@435 417 //
duke@435 418 // Usage :-
duke@435 419 //
duke@435 420 // {
duke@435 421 // JvmtiDynamicCodeEventCollector event_collector;
duke@435 422 // :
duke@435 423 // { MutexLocker ml(...)
duke@435 424 // :
duke@435 425 // JvmtiExport::post_dynamic_code_generated_while_holding_locks(...)
duke@435 426 // }
duke@435 427 // // event collector goes out of scope => post events to profiler.
duke@435 428 // }
duke@435 429
duke@435 430 class JvmtiDynamicCodeEventCollector : public JvmtiEventCollector {
duke@435 431 private:
duke@435 432 GrowableArray<JvmtiCodeBlobDesc*>* _code_blobs; // collected code blob events
duke@435 433
duke@435 434 friend class JvmtiExport;
duke@435 435 void register_stub(const char* name, address start, address end);
duke@435 436
duke@435 437 public:
jprovino@4165 438 JvmtiDynamicCodeEventCollector() NOT_JVMTI_RETURN;
jprovino@4165 439 ~JvmtiDynamicCodeEventCollector() NOT_JVMTI_RETURN;
duke@435 440 bool is_dynamic_code_event() { return true; }
duke@435 441
duke@435 442 };
duke@435 443
duke@435 444 // Used to record vm internally allocated object oops and post
duke@435 445 // vm object alloc event for objects visible to java world.
duke@435 446 // Constructor enables JvmtiThreadState flag and all vm allocated
duke@435 447 // objects are recorded in a growable array. When destructor is
duke@435 448 // called the vm object alloc event is posted for each objects
duke@435 449 // visible to java world.
duke@435 450 // See jvm.cpp file for its usage.
duke@435 451 //
duke@435 452 class JvmtiVMObjectAllocEventCollector : public JvmtiEventCollector {
duke@435 453 private:
duke@435 454 GrowableArray<oop>* _allocated; // field to record vm internally allocated object oop.
duke@435 455 bool _enable; // This flag is enabled in constructor and disabled
duke@435 456 // in destructor before posting event. To avoid
duke@435 457 // collection of objects allocated while running java code inside
duke@435 458 // agent post_vm_object_alloc() event handler.
duke@435 459
duke@435 460 //GC support
duke@435 461 void oops_do(OopClosure* f);
duke@435 462
duke@435 463 friend class JvmtiExport;
duke@435 464 // Record vm allocated object oop.
duke@435 465 inline void record_allocation(oop obj);
duke@435 466
duke@435 467 //GC support
duke@435 468 static void oops_do_for_all_threads(OopClosure* f);
duke@435 469
duke@435 470 public:
jprovino@4165 471 JvmtiVMObjectAllocEventCollector() NOT_JVMTI_RETURN;
jprovino@4165 472 ~JvmtiVMObjectAllocEventCollector() NOT_JVMTI_RETURN;
duke@435 473 bool is_vm_object_alloc_event() { return true; }
duke@435 474
duke@435 475 bool is_enabled() { return _enable; }
duke@435 476 void set_enabled(bool on) { _enable = on; }
duke@435 477 };
duke@435 478
duke@435 479
duke@435 480
duke@435 481 // Marker class to disable the posting of VMObjectAlloc events
duke@435 482 // within its scope.
duke@435 483 //
duke@435 484 // Usage :-
duke@435 485 //
duke@435 486 // {
duke@435 487 // NoJvmtiVMObjectAllocMark njm;
duke@435 488 // :
duke@435 489 // // VMObjAlloc event will not be posted
duke@435 490 // JvmtiExport::vm_object_alloc_event_collector(obj);
duke@435 491 // :
duke@435 492 // }
duke@435 493
duke@435 494 class NoJvmtiVMObjectAllocMark : public StackObj {
duke@435 495 private:
duke@435 496 // enclosing collector if enabled, NULL otherwise
duke@435 497 JvmtiVMObjectAllocEventCollector *_collector;
duke@435 498
duke@435 499 bool was_enabled() { return _collector != NULL; }
duke@435 500
duke@435 501 public:
jprovino@4165 502 NoJvmtiVMObjectAllocMark() NOT_JVMTI_RETURN;
jprovino@4165 503 ~NoJvmtiVMObjectAllocMark() NOT_JVMTI_RETURN;
duke@435 504 };
duke@435 505
duke@435 506
duke@435 507 // Base class for reporting GC events to JVMTI.
duke@435 508 class JvmtiGCMarker : public StackObj {
kamg@2445 509 public:
jprovino@4165 510 JvmtiGCMarker() NOT_JVMTI_RETURN;
jprovino@4165 511 ~JvmtiGCMarker() NOT_JVMTI_RETURN;
duke@435 512 };
duke@435 513
duke@435 514 // JvmtiHideSingleStepping is a helper class for hiding
duke@435 515 // internal single step events.
duke@435 516 class JvmtiHideSingleStepping : public StackObj {
duke@435 517 private:
duke@435 518 bool _single_step_hidden;
duke@435 519 JavaThread * _thread;
duke@435 520
duke@435 521 public:
duke@435 522 JvmtiHideSingleStepping(JavaThread * thread) {
duke@435 523 assert(thread != NULL, "sanity check");
duke@435 524
duke@435 525 _single_step_hidden = false;
duke@435 526 _thread = thread;
duke@435 527 if (JvmtiExport::should_post_single_step()) {
duke@435 528 _single_step_hidden = JvmtiExport::hide_single_stepping(_thread);
duke@435 529 }
duke@435 530 }
duke@435 531
duke@435 532 ~JvmtiHideSingleStepping() {
duke@435 533 if (_single_step_hidden) {
duke@435 534 JvmtiExport::expose_single_stepping(_thread);
duke@435 535 }
duke@435 536 }
duke@435 537 };
duke@435 538
stefank@2314 539 #endif // SHARE_VM_PRIMS_JVMTIEXPORT_HPP

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