1 /*
   2  * Copyright (c) 1997, 2009, 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 # include "incls/_precompiled.incl"
  26 # include "incls/_jni.cpp.incl"
































































  27 
  28 static jint CurrentVersion = JNI_VERSION_1_6;
  29 
  30 
  31 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace
  32 // '-return' probe regardless of the return path is taken out of the function.
  33 // Methods that have multiple return paths use this to avoid having to
  34 // instrument each return path.  Methods that use CHECK or THROW must use this
  35 // since those macros can cause an immedate uninstrumented return.
  36 //
  37 // In order to get the return value, a reference to the variable containing
  38 // the return value must be passed to the contructor of the object, and
  39 // the return value must be set before return (since the mark object has
  40 // a reference to it).
  41 //
  42 // Example:
  43 // DT_RETURN_MARK_DECL(SomeFunc, int);
  44 // JNI_ENTRY(int, SomeFunc, ...)
  45 //   int return_value = 0;
  46 //   DT_RETURN_MARK(SomeFunc, int, (const int&)return_value);

   1 /*
   2  * Copyright (c) 1997, 2010, 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 #include "precompiled.hpp"
  26 #include "classfile/classLoader.hpp"
  27 #include "classfile/javaClasses.hpp"
  28 #include "classfile/symbolTable.hpp"
  29 #include "classfile/systemDictionary.hpp"
  30 #include "classfile/vmSymbols.hpp"
  31 #include "interpreter/linkResolver.hpp"
  32 #include "memory/allocation.inline.hpp"
  33 #include "memory/gcLocker.inline.hpp"
  34 #include "memory/oopFactory.hpp"
  35 #include "memory/universe.inline.hpp"
  36 #include "oops/instanceKlass.hpp"
  37 #include "oops/instanceOop.hpp"
  38 #include "oops/markOop.hpp"
  39 #include "oops/methodOop.hpp"
  40 #include "oops/objArrayKlass.hpp"
  41 #include "oops/objArrayOop.hpp"
  42 #include "oops/oop.inline.hpp"
  43 #include "oops/symbolOop.hpp"
  44 #include "oops/typeArrayKlass.hpp"
  45 #include "oops/typeArrayOop.hpp"
  46 #include "prims/jni.h"
  47 #include "prims/jniCheck.hpp"
  48 #include "prims/jniFastGetField.hpp"
  49 #include "prims/jvm.h"
  50 #include "prims/jvm_misc.hpp"
  51 #include "prims/jvmtiExport.hpp"
  52 #include "prims/jvmtiThreadState.hpp"
  53 #include "runtime/compilationPolicy.hpp"
  54 #include "runtime/fieldDescriptor.hpp"
  55 #include "runtime/fprofiler.hpp"
  56 #include "runtime/handles.inline.hpp"
  57 #include "runtime/interfaceSupport.hpp"
  58 #include "runtime/java.hpp"
  59 #include "runtime/javaCalls.hpp"
  60 #include "runtime/jfieldIDWorkaround.hpp"
  61 #include "runtime/reflection.hpp"
  62 #include "runtime/sharedRuntime.hpp"
  63 #include "runtime/signature.hpp"
  64 #include "runtime/vm_operations.hpp"
  65 #include "services/runtimeService.hpp"
  66 #include "utilities/defaultStream.hpp"
  67 #include "utilities/dtrace.hpp"
  68 #include "utilities/events.hpp"
  69 #include "utilities/histogram.hpp"
  70 #ifdef TARGET_ARCH_x86
  71 # include "jniTypes_x86.hpp"
  72 #endif
  73 #ifdef TARGET_ARCH_sparc
  74 # include "jniTypes_sparc.hpp"
  75 #endif
  76 #ifdef TARGET_ARCH_zero
  77 # include "jniTypes_zero.hpp"
  78 #endif
  79 #ifdef TARGET_OS_FAMILY_linux
  80 # include "os_linux.inline.hpp"
  81 # include "thread_linux.inline.hpp"
  82 #endif
  83 #ifdef TARGET_OS_FAMILY_solaris
  84 # include "os_solaris.inline.hpp"
  85 # include "thread_solaris.inline.hpp"
  86 #endif
  87 #ifdef TARGET_OS_FAMILY_windows
  88 # include "os_windows.inline.hpp"
  89 # include "thread_windows.inline.hpp"
  90 #endif
  91 
  92 static jint CurrentVersion = JNI_VERSION_1_6;
  93 
  94 
  95 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace
  96 // '-return' probe regardless of the return path is taken out of the function.
  97 // Methods that have multiple return paths use this to avoid having to
  98 // instrument each return path.  Methods that use CHECK or THROW must use this
  99 // since those macros can cause an immedate uninstrumented return.
 100 //
 101 // In order to get the return value, a reference to the variable containing
 102 // the return value must be passed to the contructor of the object, and
 103 // the return value must be set before return (since the mark object has
 104 // a reference to it).
 105 //
 106 // Example:
 107 // DT_RETURN_MARK_DECL(SomeFunc, int);
 108 // JNI_ENTRY(int, SomeFunc, ...)
 109 //   int return_value = 0;
 110 //   DT_RETURN_MARK(SomeFunc, int, (const int&)return_value);