1 /*
   2  * Copyright (c) 2003, 2019, 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_PRIMS_JNICHECK_HPP
  26 #define SHARE_PRIMS_JNICHECK_HPP
  27 
  28 #include "runtime/thread.hpp"
  29 
  30 extern "C" {
  31   // Report a JNI failure caught by -Xcheck:jni.  Perform a core dump.
  32   // Note: two variations -- one to be called when in VM state (e.g. when
  33   // within IN_VM macro), one to be called when in NATIVE state.
  34 
  35   // When in VM state:
  36   static inline void ReportJNIFatalError(JavaThread* thr, const char *msg) {
  37     tty->print_cr("FATAL ERROR in native method: %s", msg);
  38     thr->print_stack();
  39     os::abort(true);
  40   }
  41 }
  42 
  43 //
  44 // Checked JNI routines that are useful for outside of checked JNI
  45 //
  46 
  47 class jniCheck : public AllStatic {
  48  public:
  49   static oop validate_handle(JavaThread* thr, jobject obj);
  50   static oop validate_object(JavaThread* thr, jobject obj);
  51   static Klass* validate_class(JavaThread* thr, jclass clazz, bool allow_primitive = false);
  52   static void validate_class_descriptor(JavaThread* thr, const char* name);
  53   static void validate_throwable_klass(JavaThread* thr, Klass* klass);
  54   static void validate_call_object(JavaThread* thr, jobject obj, jmethodID method_id);
  55   static void validate_call_class(JavaThread* thr, jclass clazz, jmethodID method_id);
  56   static Method* validate_jmethod_id(JavaThread* thr, jmethodID method_id);
  57 };
  58 
  59 #endif // SHARE_PRIMS_JNICHECK_HPP