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src/hotspot/share/jvmci/jvmciEnv.cpp

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rev 56098 : imported patch 8226705-8221734-baseline


  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/stringTable.hpp"
  27 #include "classfile/symbolTable.hpp"
  28 #include "code/codeCache.hpp"
  29 #include "memory/oopFactory.hpp"
  30 #include "memory/resourceArea.hpp"
  31 #include "memory/universe.hpp"
  32 #include "oops/objArrayKlass.hpp"
  33 #include "oops/typeArrayOop.inline.hpp"

  34 #include "runtime/jniHandles.inline.hpp"
  35 #include "runtime/javaCalls.hpp"
  36 #include "jvmci/jniAccessMark.inline.hpp"
  37 #include "jvmci/jvmciRuntime.hpp"
  38 
  39 JVMCICompileState::JVMCICompileState(CompileTask* task):
  40   _task(task),
  41   _retryable(true),
  42   _failure_reason(NULL),
  43   _failure_reason_on_C_heap(false) {
  44   // Get Jvmti capabilities under lock to get consistent values.
  45   MutexLocker mu(JvmtiThreadState_lock);
  46   _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint() ? 1 : 0;
  47   _jvmti_can_access_local_variables     = JvmtiExport::can_access_local_variables() ? 1 : 0;
  48   _jvmti_can_post_on_exceptions         = JvmtiExport::can_post_on_exceptions() ? 1 : 0;
  49   _jvmti_can_pop_frame                  = JvmtiExport::can_pop_frame() ? 1 : 0;
  50 }
  51 
  52 bool JVMCICompileState::jvmti_state_changed() const {
  53   if (!jvmti_can_access_local_variables() &&


1474   jlong nativeMethod = get_InstalledCode_address(mirror);
1475   nmethod* nm = JVMCIENV->asNmethod(mirror);
1476   if (nm == NULL) {
1477     // Nothing to do
1478     return;
1479   }
1480 
1481   Thread* THREAD = Thread::current();
1482   if (!mirror.is_hotspot() && !THREAD->is_Java_thread()) {
1483     // Calling back into native might cause the execution to block, so only allow this when calling
1484     // from a JavaThread, which is the normal case anyway.
1485     JVMCI_THROW_MSG(IllegalArgumentException,
1486                     "Cannot invalidate HotSpotNmethod object in shared library VM heap from non-JavaThread");
1487   }
1488 
1489   nmethodLocker nml(nm);
1490   if (nm->is_alive()) {
1491     // Invalidating the HotSpotNmethod means we want the nmethod
1492     // to be deoptimized.
1493     nm->mark_for_deoptimization();
1494     VM_Deoptimize op;
1495     VMThread::execute(&op);
1496   }
1497 
1498   // A HotSpotNmethod instance can only reference a single nmethod
1499   // during its lifetime so simply clear it here.
1500   set_InstalledCode_address(mirror, 0);
1501 }
1502 
1503 Klass* JVMCIEnv::asKlass(JVMCIObject obj) {
1504   return (Klass*) get_HotSpotResolvedObjectTypeImpl_metadataPointer(obj);
1505 }
1506 
1507 Method* JVMCIEnv::asMethod(JVMCIObject obj) {
1508   Method** metadataHandle = (Method**) get_HotSpotResolvedJavaMethodImpl_metadataHandle(obj);
1509   return *metadataHandle;
1510 }
1511 
1512 ConstantPool* JVMCIEnv::asConstantPool(JVMCIObject obj) {
1513   ConstantPool** metadataHandle = (ConstantPool**) get_HotSpotConstantPool_metadataHandle(obj);
1514   return *metadataHandle;
1515 }




  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/stringTable.hpp"
  27 #include "classfile/symbolTable.hpp"
  28 #include "code/codeCache.hpp"
  29 #include "memory/oopFactory.hpp"
  30 #include "memory/resourceArea.hpp"
  31 #include "memory/universe.hpp"
  32 #include "oops/objArrayKlass.hpp"
  33 #include "oops/typeArrayOop.inline.hpp"
  34 #include "runtime/deoptimization.hpp"
  35 #include "runtime/jniHandles.inline.hpp"
  36 #include "runtime/javaCalls.hpp"
  37 #include "jvmci/jniAccessMark.inline.hpp"
  38 #include "jvmci/jvmciRuntime.hpp"
  39 
  40 JVMCICompileState::JVMCICompileState(CompileTask* task):
  41   _task(task),
  42   _retryable(true),
  43   _failure_reason(NULL),
  44   _failure_reason_on_C_heap(false) {
  45   // Get Jvmti capabilities under lock to get consistent values.
  46   MutexLocker mu(JvmtiThreadState_lock);
  47   _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint() ? 1 : 0;
  48   _jvmti_can_access_local_variables     = JvmtiExport::can_access_local_variables() ? 1 : 0;
  49   _jvmti_can_post_on_exceptions         = JvmtiExport::can_post_on_exceptions() ? 1 : 0;
  50   _jvmti_can_pop_frame                  = JvmtiExport::can_pop_frame() ? 1 : 0;
  51 }
  52 
  53 bool JVMCICompileState::jvmti_state_changed() const {
  54   if (!jvmti_can_access_local_variables() &&


1475   jlong nativeMethod = get_InstalledCode_address(mirror);
1476   nmethod* nm = JVMCIENV->asNmethod(mirror);
1477   if (nm == NULL) {
1478     // Nothing to do
1479     return;
1480   }
1481 
1482   Thread* THREAD = Thread::current();
1483   if (!mirror.is_hotspot() && !THREAD->is_Java_thread()) {
1484     // Calling back into native might cause the execution to block, so only allow this when calling
1485     // from a JavaThread, which is the normal case anyway.
1486     JVMCI_THROW_MSG(IllegalArgumentException,
1487                     "Cannot invalidate HotSpotNmethod object in shared library VM heap from non-JavaThread");
1488   }
1489 
1490   nmethodLocker nml(nm);
1491   if (nm->is_alive()) {
1492     // Invalidating the HotSpotNmethod means we want the nmethod
1493     // to be deoptimized.
1494     nm->mark_for_deoptimization();
1495     Deoptimization::deoptimize_all_marked();

1496   }
1497 
1498   // A HotSpotNmethod instance can only reference a single nmethod
1499   // during its lifetime so simply clear it here.
1500   set_InstalledCode_address(mirror, 0);
1501 }
1502 
1503 Klass* JVMCIEnv::asKlass(JVMCIObject obj) {
1504   return (Klass*) get_HotSpotResolvedObjectTypeImpl_metadataPointer(obj);
1505 }
1506 
1507 Method* JVMCIEnv::asMethod(JVMCIObject obj) {
1508   Method** metadataHandle = (Method**) get_HotSpotResolvedJavaMethodImpl_metadataHandle(obj);
1509   return *metadataHandle;
1510 }
1511 
1512 ConstantPool* JVMCIEnv::asConstantPool(JVMCIObject obj) {
1513   ConstantPool** metadataHandle = (ConstantPool**) get_HotSpotConstantPool_metadataHandle(obj);
1514   return *metadataHandle;
1515 }


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