src/cpu/x86/vm/stubRoutines_x86_32.hpp

Thu, 07 Oct 2010 08:06:06 -0700

author
coleenp
date
Thu, 07 Oct 2010 08:06:06 -0700
changeset 2222
b6aedd1acdc0
parent 2148
d257356e35f0
child 2314
f95d63e2154a
permissions
-rw-r--r--

6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
Summary: min_stack_allowed is a compile time constant and Stack*Pages are settable
Reviewed-by: dholmes, kvn

     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 // This file holds the platform specific parts of the StubRoutines
    26 // definition. See stubRoutines.hpp for a description on how to
    27 // extend it.
    29 enum platform_dependent_constants {
    30   code_size1 =  9000,           // simply increase if too small (assembler will crash if too small)
    31   code_size2 = 22000            // simply increase if too small (assembler will crash if too small)
    32 };
    34 // MethodHandles adapters
    35 enum method_handles_platform_dependent_constants {
    36   method_handles_adapters_code_size = 10000
    37 };
    39 class x86 {
    40  friend class StubGenerator;
    41  friend class VMStructs;
    43  private:
    44   // If we call compiled code directly from the call stub we will
    45   // need to adjust the return back to the call stub to a specialized
    46   // piece of code that can handle compiled results and cleaning the fpu
    47   // stack. The variable holds that location.
    48   static address _call_stub_compiled_return;
    49   static address _verify_mxcsr_entry;
    50   static address _verify_fpu_cntrl_wrd_entry;
    51   static jint    _mxcsr_std;
    53  public:
    54   static address verify_mxcsr_entry()                        { return _verify_mxcsr_entry; }
    55   static address verify_fpu_cntrl_wrd_entry()                { return _verify_fpu_cntrl_wrd_entry; }
    57   static address get_call_stub_compiled_return()             { return _call_stub_compiled_return; }
    58   static void set_call_stub_compiled_return(address ret)     { _call_stub_compiled_return = ret; }
    59 };
    61   static bool    returns_to_call_stub(address return_pc)     { return (return_pc == _call_stub_return_address) ||
    62                                                                        return_pc == x86::get_call_stub_compiled_return(); }

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