3002     return false;
3003   }
3004 
3005   // Inflated monitors
3006   blk.set_kind(JVMTI_HEAP_REFERENCE_MONITOR);
3007   ObjectSynchronizer::oops_do(&blk);
3008   if (blk.stopped()) {
3009     return false;
3010   }
3011 
3012   // threads are now handled in collect_stack_roots()
3013 
3014   // Other kinds of roots maintained by HotSpot
3015   // Many of these won't be visible but others (such as instances of important
3016   // exceptions) will be visible.
3017   blk.set_kind(JVMTI_HEAP_REFERENCE_OTHER);
3018   Universe::oops_do(&blk);
3019 
3020   // If there are any non-perm roots in the code cache, visit them.
3021   blk.set_kind(JVMTI_HEAP_REFERENCE_OTHER);
3022   CodeBlobToOopClosure look_in_blobs(&blk, false);
3023   CodeCache::scavenge_root_nmethods_do(&look_in_blobs);
3024 
3025   return true;
3026 }
3027 
3028 // Walk the stack of a given thread and find all references (locals
3029 // and JNI calls) and report these as stack references
3030 inline bool VM_HeapWalkOperation::collect_stack_roots(JavaThread* java_thread,
3031                                                       JNILocalRootsClosure* blk)
3032 {
3033   oop threadObj = java_thread->threadObj();
3034   assert(threadObj != NULL, "sanity check");
3035 
3036   // only need to get the thread's tag once per thread
3037   jlong thread_tag = tag_for(_tag_map, threadObj);
3038 
3039   // also need the thread id
3040   jlong tid = java_lang_Thread::thread_id(threadObj);
3041 
3042 

3002     return false;
3003   }
3004 
3005   // Inflated monitors
3006   blk.set_kind(JVMTI_HEAP_REFERENCE_MONITOR);
3007   ObjectSynchronizer::oops_do(&blk);
3008   if (blk.stopped()) {
3009     return false;
3010   }
3011 
3012   // threads are now handled in collect_stack_roots()
3013 
3014   // Other kinds of roots maintained by HotSpot
3015   // Many of these won't be visible but others (such as instances of important
3016   // exceptions) will be visible.
3017   blk.set_kind(JVMTI_HEAP_REFERENCE_OTHER);
3018   Universe::oops_do(&blk);
3019 
3020   // If there are any non-perm roots in the code cache, visit them.
3021   blk.set_kind(JVMTI_HEAP_REFERENCE_OTHER);
3022   CodeBlobToOopClosure look_in_blobs(&blk, !CodeBlobToOopClosure::FixRelocations);
3023   CodeCache::scavenge_root_nmethods_do(&look_in_blobs);
3024 
3025   return true;
3026 }
3027 
3028 // Walk the stack of a given thread and find all references (locals
3029 // and JNI calls) and report these as stack references
3030 inline bool VM_HeapWalkOperation::collect_stack_roots(JavaThread* java_thread,
3031                                                       JNILocalRootsClosure* blk)
3032 {
3033   oop threadObj = java_thread->threadObj();
3034   assert(threadObj != NULL, "sanity check");
3035 
3036   // only need to get the thread's tag once per thread
3037   jlong thread_tag = tag_for(_tag_map, threadObj);
3038 
3039   // also need the thread id
3040   jlong tid = java_lang_Thread::thread_id(threadObj);
3041 
3042