jdk8-mips64-public/hotspot: src/cpu/zero/vm/nativeInst

     1 /*

     2  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright 2008 Red Hat, Inc.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  *

    24  */

    26 #include "precompiled.hpp"

    27 #include "assembler_zero.inline.hpp"

    28 #include "memory/resourceArea.hpp"

    29 #include "nativeInst_zero.hpp"

    30 #include "oops/oop.inline.hpp"

    31 #include "runtime/handles.hpp"

    32 #include "runtime/sharedRuntime.hpp"

    33 #include "runtime/stubRoutines.hpp"

    34 #include "utilities/ostream.hpp"

    35 #ifdef COMPILER1

    36 #include "c1/c1_Runtime1.hpp"

    37 #endif

    39 // This method is called by nmethod::make_not_entrant_or_zombie to

    40 // insert a jump to SharedRuntime::get_handle_wrong_method_stub()

    41 // (dest) at the start of a compiled method (verified_entry) to avoid

    42 // a race where a method is invoked while being made non-entrant.

    43 //

    44 // In Shark, verified_entry is a pointer to a SharkEntry.  We can

    45 // handle this simply by changing it's entry point to point at the

    46 // interpreter.  This only works because the interpreter and Shark

    47 // calling conventions are the same.

    49 void NativeJump::patch_verified_entry(address entry,

    50                                       address verified_entry,

    51                                       address dest) {

    52   assert(dest == SharedRuntime::get_handle_wrong_method_stub(), "should be");

    54 #ifdef CC_INTERP

    55   ((ZeroEntry*) verified_entry)->set_entry_point(

    56     (address) CppInterpreter::normal_entry);

    57 #else

    58   Unimplemented();

    59 #endif // CC_INTERP

    60 }

src/cpu/zero/vm/nativeInst_zero.cpp@a9becfeecd1b