1 /*
   2  * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  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 #ifndef SHARE_VM_JFR_JNI_JFRUPCALLS_HPP
  26 #define SHARE_VM_JFR_JNI_JFRUPCALLS_HPP
  27 
  28 #include "jni.h"
  29 #include "jfr/utilities/jfrAllocation.hpp"
  30 #include "utilities/exceptions.hpp"
  31 
  32 class JavaThread;
  33 
  34 //
  35 // Upcalls to Java for instrumentation purposes.
  36 // Targets are located in jdk.jfr.internal.JVMUpcalls.
  37 //
  38 class JfrUpcalls : AllStatic {
  39  public:
  40   static void new_bytes_eager_instrumentation(jlong trace_id,
  41                                               jboolean force_instrumentation,
  42                                               jclass super,
  43                                               jint class_data_len,
  44                                               const unsigned char* class_data,
  45                                               jint* new_class_data_len,
  46                                               unsigned char** new_class_data,
  47                                               TRAPS);
  48 
  49   static void on_retransform(jlong trace_id,
  50                              jclass class_being_redefined,
  51                              jint class_data_len,
  52                              const unsigned char* class_data,
  53                              jint* new_class_data_len,
  54                              unsigned char** new_class_data,
  55                              TRAPS);
  56 
  57   static instanceKlassHandle load_event_handler_proxy_class(TRAPS);
  58 };
  59 
  60 #endif // SHARE_VM_JFR_JNI_JFRUPCALLS_HPP