2007-12-01 00:00:00 +00:00
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/*
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2010-05-27 19:08:38 -07:00
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* Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
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2007-12-01 00:00:00 +00:00
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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2010-05-27 19:08:38 -07:00
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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2007-12-01 00:00:00 +00:00
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*
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*/
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2009-02-27 13:27:09 -08:00
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// This file holds platform-independent bodies of inline functions for frames.
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2007-12-01 00:00:00 +00:00
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// Note: The bcx usually contains the bcp; however during GC it contains the bci
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// (changed by gc_prologue() and gc_epilogue()) to be methodOop position
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// independent. These accessors make sure the correct value is returned
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// by testing the range of the bcx value. bcp's are guaranteed to be above
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// max_method_code_size, since methods are always allocated in OldSpace and
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// Eden is allocated before OldSpace.
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//
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// The bcp is accessed sometimes during GC for ArgumentDescriptors; than
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// the correct translation has to be performed (was bug).
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inline bool frame::is_bci(intptr_t bcx) {
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#ifdef _LP64
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return ((uintptr_t) bcx) <= ((uintptr_t) max_method_code_size) ;
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#else
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return 0 <= bcx && bcx <= max_method_code_size;
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#endif
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}
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inline bool frame::is_entry_frame() const {
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return StubRoutines::returns_to_call_stub(pc());
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}
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inline bool frame::is_first_frame() const {
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return is_entry_frame() && entry_frame_is_first();
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}
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// here are the platform-dependent bodies:
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# include "incls/_frame_pd.inline.hpp.incl"
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