jdk8-mips64-public/hotspot: src/share/vm/prims/whitebox.hpp@59c790074993

8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
Summary: Make metaspace::contains be lock free and used to see if something is in metaspace, also compare Method* with vtbl pointer.
Reviewed-by: dholmes, sspitsyn, dcubed, jmasa

     1 /*

     2  * Copyright (c) 2012, 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  */

    25 #ifndef SHARE_VM_PRIMS_WHITEBOX_HPP

    26 #define SHARE_VM_PRIMS_WHITEBOX_HPP

    28 #include "prims/jni.h"

    30 #include "memory/allocation.hpp"

    31 #include "oops/oopsHierarchy.hpp"

    33 // Entry macro to transition from JNI to VM state.

    35 #define WB_ENTRY(result_type, header) JNI_ENTRY(result_type, header)

    36 #define WB_END JNI_END

    37 #define WB_METHOD_DECLARE extern "C" jobjectArray JNICALL

    39 class WhiteBox : public AllStatic {

    40  private:

    41   static bool _used;

    42  public:

    43   static bool used()     { return _used; }

    44   static void set_used() { _used = true; }

    45   static int offset_for_field(const char* field_name, oop object,

    46     Symbol* signature_symbol);

    47   static const char* lookup_jstring(const char* field_name, oop object);

    48   static bool lookup_bool(const char* field_name, oop object);

    49 };

    53 #endif // SHARE_VM_PRIMS_WHITEBOX_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/whitebox.hpp@59c790074993

src/share/vm/prims/whitebox.hpp