stubRoutines_x86_32.hpp revision 0
0N/A/*
0N/A * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
0N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
0N/A * CA 95054 USA or visit www.sun.com if you need additional information or
0N/A * have any questions.
0N/A *
0N/A */
0N/A
0N/A// This file holds the platform specific parts of the StubRoutines
0N/A// definition. See stubRoutines.hpp for a description on how to
0N/A// extend it.
0N/A
0N/Aenum platform_dependent_constants {
0N/A code_size1 = 9000, // simply increase if too small (assembler will crash if too small)
0N/A code_size2 = 22000 // simply increase if too small (assembler will crash if too small)
0N/A};
0N/A
0N/Aclass i486 {
0N/A friend class StubGenerator;
0N/A friend class VMStructs;
0N/A
0N/A private:
0N/A // If we call compiled code directly from the call stub we will
0N/A // need to adjust the return back to the call stub to a specialized
0N/A // piece of code that can handle compiled results and cleaning the fpu
0N/A // stack. The variable holds that location.
0N/A static address _call_stub_compiled_return;
0N/A static address _verify_mxcsr_entry;
0N/A static address _verify_fpu_cntrl_wrd_entry;
0N/A static jint _mxcsr_std;
0N/A
0N/A public:
0N/A static address verify_mxcsr_entry() { return _verify_mxcsr_entry; }
0N/A static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; }
0N/A
0N/A static address get_call_stub_compiled_return() { return _call_stub_compiled_return; }
0N/A static void set_call_stub_compiled_return(address ret) { _call_stub_compiled_return = ret; }
0N/A};
0N/A
0N/A static bool returns_to_call_stub(address return_pc) { return (return_pc == _call_stub_return_address) ||
0N/A return_pc == i486::get_call_stub_compiled_return(); }