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src/cpu/zero/vm/icBuffer_zero.cpp@f9271ff9d324 (annotated)

src/cpu/zero/vm/icBuffer_zero.cpp

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

author

twisti

date

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

changeset 1814

f9271ff9d324

parent 1445

354d3184f6b2

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 2003-2006 Sun Microsystems, Inc. All Rights Reserved.
never@1445	3	* Copyright 2007 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	#include "incls/_precompiled.incl"
never@1445	27	#include "incls/_icBuffer_zero.cpp.incl"
never@1445	28
never@1445	29	int InlineCacheBuffer::ic_stub_code_size() {
never@1445	30	// NB set this once the functions below are implemented
never@1445	31	return 4;
never@1445	32	}
never@1445	33
never@1445	34	void InlineCacheBuffer::assemble_ic_buffer_code(address code_begin,
never@1445	35	oop cached_oop,
never@1445	36	address entry_point) {
never@1445	37	// NB ic_stub_code_size() must return the size of the code we generate
never@1445	38	ShouldNotCallThis();
never@1445	39	}
never@1445	40
never@1445	41	address InlineCacheBuffer::ic_buffer_entry_point(address code_begin) {
never@1445	42	// NB ic_stub_code_size() must return the size of the code we generate
never@1445	43	ShouldNotCallThis();
never@1445	44	}
never@1445	45
never@1445	46	oop InlineCacheBuffer::ic_buffer_cached_oop(address code_begin) {
never@1445	47	// NB ic_stub_code_size() must return the size of the code we generate
never@1445	48	ShouldNotCallThis();
never@1445	49	}