jdk8-mips64-public/hotspot: src/cpu/mips/vm/stubRoutines_mips

     1 /*

     2  * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved.

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

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

    28 // extend it.

    30 //static bool    returns_to_call_stub(address return_pc)   { return return_pc == _call_stub_return_address; }

    31   static bool    returns_to_call_stub(address return_pc){

    32 	  return return_pc == _call_stub_return_address||return_pc == gs2::get_call_stub_compiled_return();

    33   }

    35 enum platform_dependent_constants

    36 {

    37   //code_size1 =  19000, // simply increase if too small (assembler will

    38                       // crash if too small)

    39   //code_size2 = 22000  // simply increase if too small (assembler will

    40                       // crash if too small)

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

    42   code_size2 = 40000		// simply increase if too small (assembler will crash if too small)

    43 };

    44 //aoqi:FIXME class name gs2?

    45 class gs2 {

    46 	friend class StubGenerator;

    47  	friend class VMStructs;

    48 private:

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

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

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

    52   // stack. The variable holds that location.

    53 	static address _call_stub_compiled_return;

    54 	static address _get_previous_fp_entry;

    56 public:

    57   // Call back points for traps in compiled code

    58 	static address get_previous_fp_entry()     { return _get_previous_fp_entry; }

    59   static address get_call_stub_compiled_return()    { return _call_stub_compiled_return; }

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

    62 };

src/cpu/mips/vm/stubRoutines_mips_64.hpp@d885f8d65c58