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src/cpu/zero/vm/stubRoutines_zero.hpp@f9271ff9d324 (annotated)

src/cpu/zero/vm/stubRoutines_zero.hpp

Thu, 15 Apr 2010 02:40:12 -0700

author

twisti

date

Thu, 15 Apr 2010 02:40:12 -0700

changeset 1814

f9271ff9d324

parent 1781

47742b654fcb

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6941224: Improved stack overflow handling for Zero
Summary: Adding stack overflow checking to Shark brought to light a bunch of deficiencies in Zero's stack overflow code.
Reviewed-by: twisti
Contributed-by: Gary Benson <gbenson@redhat.com>

never@1445	1	/*
never@1445	2	* Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
twisti@1781	3	* Copyright 2007, 2008, 2009, 2010 Red Hat, Inc.
never@1445	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
never@1445	5	*
never@1445	6	* This code is free software; you can redistribute it and/or modify it
never@1445	7	* under the terms of the GNU General Public License version 2 only, as
never@1445	8	* published by the Free Software Foundation.
never@1445	9	*
never@1445	10	* This code is distributed in the hope that it will be useful, but WITHOUT
never@1445	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
never@1445	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
never@1445	13	* version 2 for more details (a copy is included in the LICENSE file that
never@1445	14	* accompanied this code).
never@1445	15	*
never@1445	16	* You should have received a copy of the GNU General Public License version
never@1445	17	* 2 along with this work; if not, write to the Free Software Foundation,
never@1445	18	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
never@1445	19	*
never@1445	20	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
never@1445	21	* CA 95054 USA or visit www.sun.com if you need additional information or
never@1445	22	* have any questions.
never@1445	23	*
never@1445	24	*/
never@1445	25
never@1445	26	// This file holds the platform specific parts of the StubRoutines
never@1445	27	// definition. See stubRoutines.hpp for a description on how to
never@1445	28	// extend it.
never@1445	29
never@1445	30	public:
never@1445	31	static address call_stub_return_pc() {
never@1445	32	return (address) -1;
never@1445	33	}
never@1445	34
never@1445	35	static bool returns_to_call_stub(address return_pc) {
never@1445	36	return return_pc == call_stub_return_pc();
never@1445	37	}
never@1445	38
never@1445	39	enum platform_dependent_constants {
never@1445	40	code_size1 = 0, // The assembler will fail with a guarantee
never@1445	41	code_size2 = 0 // if these are too small. Simply increase
never@1445	42	}; // them if that happens.
never@1445	43
twisti@1781	44	enum method_handles_platform_dependent_constants {
twisti@1781	45	method_handles_adapters_code_size = 0
twisti@1781	46	};
twisti@1781	47
never@1445	48	#ifdef IA32
never@1445	49	class x86 {
never@1445	50	friend class VMStructs;
never@1445	51
never@1445	52	private:
never@1445	53	static address _call_stub_compiled_return;
never@1445	54	};
never@1445	55	#endif // IA32