22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/systemDictionary.hpp"
  27 #include "classfile/vmSymbols.hpp"
  28 #include "code/nmethod.hpp"
  29 #include "compiler/compileBroker.hpp"
  30 #include "interpreter/interpreter.hpp"
  31 #include "interpreter/linkResolver.hpp"
  32 #include "memory/universe.inline.hpp"
  33 #include "oops/oop.inline.hpp"
  34 #include "prims/jniCheck.hpp"
  35 #include "runtime/compilationPolicy.hpp"
  36 #include "runtime/handles.inline.hpp"
  37 #include "runtime/interfaceSupport.hpp"
  38 #include "runtime/javaCalls.hpp"
  39 #include "runtime/mutexLocker.hpp"
  40 #include "runtime/signature.hpp"
  41 #include "runtime/stubRoutines.hpp"
  42 #ifdef TARGET_OS_FAMILY_linux
  43 # include "thread_linux.inline.hpp"
  44 #endif
  45 #ifdef TARGET_OS_FAMILY_solaris
  46 # include "thread_solaris.inline.hpp"
  47 #endif
  48 #ifdef TARGET_OS_FAMILY_windows
  49 # include "thread_windows.inline.hpp"
  50 #endif
  51 #ifdef TARGET_OS_FAMILY_bsd
  52 # include "thread_bsd.inline.hpp"
  53 #endif
  54 
  55 // -----------------------------------------------------
  56 // Implementation of JavaCallWrapper
  57 
  58 JavaCallWrapper::JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS) {
  59   JavaThread* thread = (JavaThread *)THREAD;
  60   bool clear_pending_exception = true;
  61 
  62   guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code");
  63   assert(!thread->owns_locks(), "must release all locks when leaving VM");
  64   guarantee(!thread->is_Compiler_thread(), "cannot make java calls from the compiler");
  65   _result   = result;
  66 
  67   // Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub,
  68   // since it can potentially block.
  69   JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
  70 
  71   // After this, we are official in JavaCode. This needs to be done before we change any of the thread local
  72   // info, since we cannot find oops before the new information is set up completely.
  73   ThreadStateTransition::transition(thread, _thread_in_vm, _thread_in_Java);

  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/systemDictionary.hpp"
  27 #include "classfile/vmSymbols.hpp"
  28 #include "code/nmethod.hpp"
  29 #include "compiler/compileBroker.hpp"
  30 #include "interpreter/interpreter.hpp"
  31 #include "interpreter/linkResolver.hpp"
  32 #include "memory/universe.inline.hpp"
  33 #include "oops/oop.inline.hpp"
  34 #include "prims/jniCheck.hpp"
  35 #include "runtime/compilationPolicy.hpp"
  36 #include "runtime/handles.inline.hpp"
  37 #include "runtime/interfaceSupport.hpp"
  38 #include "runtime/javaCalls.hpp"
  39 #include "runtime/mutexLocker.hpp"
  40 #include "runtime/signature.hpp"
  41 #include "runtime/stubRoutines.hpp"
  42 #include "runtime/thread.inline.hpp"











  43 
  44 // -----------------------------------------------------
  45 // Implementation of JavaCallWrapper
  46 
  47 JavaCallWrapper::JavaCallWrapper(methodHandle callee_method, Handle receiver, JavaValue* result, TRAPS) {
  48   JavaThread* thread = (JavaThread *)THREAD;
  49   bool clear_pending_exception = true;
  50 
  51   guarantee(thread->is_Java_thread(), "crucial check - the VM thread cannot and must not escape to Java code");
  52   assert(!thread->owns_locks(), "must release all locks when leaving VM");
  53   guarantee(!thread->is_Compiler_thread(), "cannot make java calls from the compiler");
  54   _result   = result;
  55 
  56   // Allocate handle block for Java code. This must be done before we change thread_state to _thread_in_Java_or_stub,
  57   // since it can potentially block.
  58   JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
  59 
  60   // After this, we are official in JavaCode. This needs to be done before we change any of the thread local
  61   // info, since we cannot find oops before the new information is set up completely.
  62   ThreadStateTransition::transition(thread, _thread_in_vm, _thread_in_Java);