src/cpu/sparc/vm/stubRoutines_sparc.hpp

Tue, 24 Dec 2013 11:48:39 -0800

author
mikael
date
Tue, 24 Dec 2013 11:48:39 -0800
changeset 6198
55fb97c4c58d
parent 5283
46c544b8fbfc
child 6653
03214612e77e
permissions
-rw-r--r--

8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov

     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 = 20000            // 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

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