frame.inline.hpp revision 1472:c18cbe5936b8
1155131Srwatson/* 2155131Srwatson * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved. 3155131Srwatson * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4155131Srwatson * 5155131Srwatson * This code is free software; you can redistribute it and/or modify it 6155131Srwatson * under the terms of the GNU General Public License version 2 only, as 7155131Srwatson * published by the Free Software Foundation. 8155131Srwatson * 9155131Srwatson * This code is distributed in the hope that it will be useful, but WITHOUT 10155131Srwatson * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11155131Srwatson * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12155131Srwatson * version 2 for more details (a copy is included in the LICENSE file that 13155131Srwatson * accompanied this code). 14155131Srwatson * 15155131Srwatson * You should have received a copy of the GNU General Public License version 16155131Srwatson * 2 along with this work; if not, write to the Free Software Foundation, 17155131Srwatson * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18155131Srwatson * 19155131Srwatson * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20155131Srwatson * or visit www.oracle.com if you need additional information or have any 21155131Srwatson * questions. 22155131Srwatson * 23155131Srwatson */ 24155131Srwatson 25155131Srwatson// This file holds platform-independent bodies of inline functions for frames. 26155131Srwatson 27155131Srwatson// Note: The bcx usually contains the bcp; however during GC it contains the bci 28155131Srwatson// (changed by gc_prologue() and gc_epilogue()) to be methodOop position 29155131Srwatson// independent. These accessors make sure the correct value is returned 30155131Srwatson// by testing the range of the bcx value. bcp's are guaranteed to be above 31155131Srwatson// max_method_code_size, since methods are always allocated in OldSpace and 32155131Srwatson// Eden is allocated before OldSpace. 33155131Srwatson// 34155131Srwatson// The bcp is accessed sometimes during GC for ArgumentDescriptors; than 35155131Srwatson// the correct translation has to be performed (was bug). 36155131Srwatson 37155131Srwatsoninline bool frame::is_bci(intptr_t bcx) { 38155131Srwatson#ifdef _LP64 39155131Srwatson return ((uintptr_t) bcx) <= ((uintptr_t) max_method_code_size) ; 40155131Srwatson#else 41155131Srwatson return 0 <= bcx && bcx <= max_method_code_size; 42155131Srwatson#endif 43155131Srwatson} 44155131Srwatson 45155131Srwatsoninline bool frame::is_entry_frame() const { 46155131Srwatson return StubRoutines::returns_to_call_stub(pc()); 47155131Srwatson} 48155131Srwatson 49155131Srwatsoninline bool frame::is_first_frame() const { 50155131Srwatson return is_entry_frame() && entry_frame_is_first(); 51155131Srwatson} 52155131Srwatson 53155131Srwatson// here are the platform-dependent bodies: 54155131Srwatson 55155131Srwatson# include "incls/_frame_pd.inline.hpp.incl" 56155131Srwatson