jdk8-mips64-public/hotspot: src/cpu/x86/vm/stubRoutines_x86

4930919: race condition in MDO creation at back branch locations
Summary: Reuse set_method_data_for_bcp() to setup mdp after MDO creation.
Reviewed-by: kvn, never

     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  */

    25 #ifndef CPU_X86_VM_STUBROUTINES_X86_32_HPP

    26 #define CPU_X86_VM_STUBROUTINES_X86_32_HPP

    28 // This file holds the platform specific parts of the StubRoutines

    29 // definition. See stubRoutines.hpp for a description on how to

    30 // extend it.

    32 enum platform_dependent_constants {

    33   code_size1 =  9000,           // simply increase if too small (assembler will crash if too small)

    34   code_size2 = 22000            // simply increase if too small (assembler will crash if too small)

    35 };

    37 // MethodHandles adapters

    38 enum method_handles_platform_dependent_constants {

    39   method_handles_adapters_code_size = 10000

    40 };

    42 class x86 {

    43  friend class StubGenerator;

    44  friend class VMStructs;

    46  private:

    47   // If we call compiled code directly from the call stub we will

    48   // need to adjust the return back to the call stub to a specialized

    49   // piece of code that can handle compiled results and cleaning the fpu

    50   // stack. The variable holds that location.

    51   static address _call_stub_compiled_return;

    52   static address _verify_mxcsr_entry;

    53   static address _verify_fpu_cntrl_wrd_entry;

    54   static jint    _mxcsr_std;

    56  public:

    57   static address verify_mxcsr_entry()                        { return _verify_mxcsr_entry; }

    58   static address verify_fpu_cntrl_wrd_entry()                { return _verify_fpu_cntrl_wrd_entry; }

    60   static address get_call_stub_compiled_return()             { return _call_stub_compiled_return; }

    61   static void set_call_stub_compiled_return(address ret)     { _call_stub_compiled_return = ret; }

    62 };

    64   static bool    returns_to_call_stub(address return_pc)     { return (return_pc == _call_stub_return_address) ||

    65                                                                        return_pc == x86::get_call_stub_compiled_return(); }

    67 #endif // CPU_X86_VM_STUBROUTINES_X86_32_HPP

src/cpu/x86/vm/stubRoutines_x86_32.hpp@dd031b2226de

src/cpu/x86/vm/stubRoutines_x86_32.hpp

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

src/cpu/x86/vm/stubRoutines_x86_32.hpp@dd031b2226de

src/cpu/x86/vm/stubRoutines_x86_32.hpp