3183
3184 oop JavaThread::current_park_blocker() {
3185 // Support for JSR-166 locks
3186 oop thread_oop = threadObj();
3187 if (thread_oop != NULL &&
3188 JDK_Version::current().supports_thread_park_blocker()) {
3189 return java_lang_Thread::park_blocker(thread_oop);
3190 }
3191 return NULL;
3192 }
3193
3194
3195 void JavaThread::print_stack_on(outputStream* st) {
3196 if (!has_last_Java_frame()) return;
3197 ResourceMark rm;
3198 HandleMark hm;
3199
3200 RegisterMap reg_map(this);
3201 vframe* start_vf = last_java_vframe(®_map);
3202 int count = 0;
3203 for (vframe* f = start_vf; f; f = f->sender()) {
3204 if (f->is_java_frame()) {
3205 javaVFrame* jvf = javaVFrame::cast(f);
3206 java_lang_Throwable::print_stack_element(st, jvf->method(), jvf->bci());
3207
3208 // Print out lock information
3209 if (JavaMonitorsInStackTrace) {
3210 jvf->print_lock_info_on(st, count);
3211 }
3212 } else {
3213 // Ignore non-Java frames
3214 }
3215
3216 // Bail-out case for too deep stacks
3217 count++;
3218 if (MaxJavaStackTraceDepth == count) return;
3219 }
3220 }
3221
3222
3223 // JVMTI PopFrame support
3224 void JavaThread::popframe_preserve_args(ByteSize size_in_bytes, void* start) {
3225 assert(_popframe_preserved_args == NULL, "should not wipe out old PopFrame preserved arguments");
3226 if (in_bytes(size_in_bytes) != 0) {
3227 _popframe_preserved_args = NEW_C_HEAP_ARRAY(char, in_bytes(size_in_bytes), mtThread);
3228 _popframe_preserved_args_size = in_bytes(size_in_bytes);
3229 Copy::conjoint_jbytes(start, _popframe_preserved_args, _popframe_preserved_args_size);
3230 }
3231 }
3232
3233 void* JavaThread::popframe_preserved_args() {
3234 return _popframe_preserved_args;
3235 }
3236
3237 ByteSize JavaThread::popframe_preserved_args_size() {
3238 return in_ByteSize(_popframe_preserved_args_size);
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3183
3184 oop JavaThread::current_park_blocker() {
3185 // Support for JSR-166 locks
3186 oop thread_oop = threadObj();
3187 if (thread_oop != NULL &&
3188 JDK_Version::current().supports_thread_park_blocker()) {
3189 return java_lang_Thread::park_blocker(thread_oop);
3190 }
3191 return NULL;
3192 }
3193
3194
3195 void JavaThread::print_stack_on(outputStream* st) {
3196 if (!has_last_Java_frame()) return;
3197 ResourceMark rm;
3198 HandleMark hm;
3199
3200 RegisterMap reg_map(this);
3201 vframe* start_vf = last_java_vframe(®_map);
3202 int count = 0;
3203 for (vframe* f = start_vf; f != NULL; f = f->sender()) {
3204 if (f->is_java_frame()) {
3205 javaVFrame* jvf = javaVFrame::cast(f);
3206 java_lang_Throwable::print_stack_element(st, jvf->method(), jvf->bci());
3207
3208 // Print out lock information
3209 if (JavaMonitorsInStackTrace) {
3210 jvf->print_lock_info_on(st, count);
3211 }
3212 } else {
3213 // Ignore non-Java frames
3214 }
3215
3216 // Bail-out case for too deep stacks if MaxJavaStackTraceDepth > 0
3217 count++;
3218 if (MaxJavaStackTraceDepth > 0 && MaxJavaStackTraceDepth == count) return;
3219 }
3220 }
3221
3222
3223 // JVMTI PopFrame support
3224 void JavaThread::popframe_preserve_args(ByteSize size_in_bytes, void* start) {
3225 assert(_popframe_preserved_args == NULL, "should not wipe out old PopFrame preserved arguments");
3226 if (in_bytes(size_in_bytes) != 0) {
3227 _popframe_preserved_args = NEW_C_HEAP_ARRAY(char, in_bytes(size_in_bytes), mtThread);
3228 _popframe_preserved_args_size = in_bytes(size_in_bytes);
3229 Copy::conjoint_jbytes(start, _popframe_preserved_args, _popframe_preserved_args_size);
3230 }
3231 }
3232
3233 void* JavaThread::popframe_preserved_args() {
3234 return _popframe_preserved_args;
3235 }
3236
3237 ByteSize JavaThread::popframe_preserved_args_size() {
3238 return in_ByteSize(_popframe_preserved_args_size);
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