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src/cpu/x86/vm/stubRoutines_x86_32.hpp@0fbdb4381b99 (annotated)

src/cpu/x86/vm/stubRoutines_x86_32.hpp

Mon, 09 Mar 2009 13:28:46 -0700

author

xdono

date

Mon, 09 Mar 2009 13:28:46 -0700

changeset 1014

0fbdb4381b99

parent 772

9ee9cf798b59

child 1734

9eba43136cb5

permissions

-rw-r--r--

6814575: Update copyright year
Summary: Update copyright for files that have been modified in 2009, up to 03/09
Reviewed-by: katleman, tbell, ohair

duke@435	1	/*
xdono@772	2	* Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// This file holds the platform specific parts of the StubRoutines
duke@435	26	// definition. See stubRoutines.hpp for a description on how to
duke@435	27	// extend it.
duke@435	28
duke@435	29	enum platform_dependent_constants {
duke@435	30	code_size1 = 9000, // simply increase if too small (assembler will crash if too small)
duke@435	31	code_size2 = 22000 // simply increase if too small (assembler will crash if too small)
duke@435	32	};
duke@435	33
never@739	34	class x86 {
duke@435	35	friend class StubGenerator;
duke@435	36	friend class VMStructs;
duke@435	37
duke@435	38	private:
duke@435	39	// If we call compiled code directly from the call stub we will
duke@435	40	// need to adjust the return back to the call stub to a specialized
duke@435	41	// piece of code that can handle compiled results and cleaning the fpu
duke@435	42	// stack. The variable holds that location.
duke@435	43	static address _call_stub_compiled_return;
duke@435	44	static address _verify_mxcsr_entry;
duke@435	45	static address _verify_fpu_cntrl_wrd_entry;
duke@435	46	static jint _mxcsr_std;
duke@435	47
duke@435	48	public:
duke@435	49	static address verify_mxcsr_entry() { return _verify_mxcsr_entry; }
duke@435	50	static address verify_fpu_cntrl_wrd_entry() { return _verify_fpu_cntrl_wrd_entry; }
duke@435	51
duke@435	52	static address get_call_stub_compiled_return() { return _call_stub_compiled_return; }
duke@435	53	static void set_call_stub_compiled_return(address ret) { _call_stub_compiled_return = ret; }
duke@435	54	};
duke@435	55
duke@435	56	static bool returns_to_call_stub(address return_pc) { return (return_pc == _call_stub_return_address) ||
never@739	57	return_pc == x86::get_call_stub_compiled_return(); }