jdk8-mips64-public/hotspot: src/cpu/sparc/vm/stubRoutines

8073108: Use x86 and SPARC CPU instructions for GHASH acceleration
Reviewed-by: kvn, jrose, phh

     1 /*

     2  * Copyright (c) 1997, 2013, 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_SPARC_VM_STUBROUTINES_SPARC_HPP

    26 #define CPU_SPARC_VM_STUBROUTINES_SPARC_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.

    33 // So unfortunately c2 will call with a pc from a frame object

    34 // (already adjusted) and a raw pc (unadjusted), so we need to check both.

    35 // It didn't use to be like this before adapter removal.

    36 static bool returns_to_call_stub(address return_pc)   {

    37   return ((return_pc + frame::pc_return_offset) == _call_stub_return_address) ||

    38           (return_pc == _call_stub_return_address );

    39 }

    41 enum /* platform_dependent_constants */ {

    42   // %%%%%%%% May be able to shrink this a lot

    43   code_size1 = 20000,           // simply increase if too small (assembler will crash if too small)

    44   code_size2 = 23000            // simply increase if too small (assembler will crash if too small)

    45 };

    47 class Sparc {

    48  friend class StubGenerator;

    50  private:

    51   static address _test_stop_entry;

    52   static address _stop_subroutine_entry;

    53   static address _flush_callers_register_windows_entry;

    55   static address _partial_subtype_check;

    57  public:

    58   // test assembler stop routine by setting registers

    59   static void (*test_stop_entry()) ()                     { return CAST_TO_FN_PTR(void (*)(void), _test_stop_entry); }

    61   // a subroutine for debugging assembler code

    62   static address stop_subroutine_entry_address()          { return (address)&_stop_subroutine_entry; }

    64   // flushes (all but current) register window

    65   static intptr_t* (*flush_callers_register_windows_func())() { return CAST_TO_FN_PTR(intptr_t* (*)(void), _flush_callers_register_windows_entry); }

    67   static address partial_subtype_check()                  { return _partial_subtype_check; }

    68 };

    70 #endif // CPU_SPARC_VM_STUBROUTINES_SPARC_HPP

src/cpu/sparc/vm/stubRoutines_sparc.hpp@44ef77ad417c

src/cpu/sparc/vm/stubRoutines_sparc.hpp

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

src/cpu/sparc/vm/stubRoutines_sparc.hpp@44ef77ad417c

src/cpu/sparc/vm/stubRoutines_sparc.hpp