Mercurial > hg > truffle
diff src/share/vm/runtime/frame.inline.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | 98cb887364d3 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/runtime/frame.inline.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,55 @@ +/* + * Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// This file holds platform-independant bodies of inline functions for frames. + +// Note: The bcx usually contains the bcp; however during GC it contains the bci +// (changed by gc_prologue() and gc_epilogue()) to be methodOop position +// independent. These accessors make sure the correct value is returned +// by testing the range of the bcx value. bcp's are guaranteed to be above +// max_method_code_size, since methods are always allocated in OldSpace and +// Eden is allocated before OldSpace. +// +// The bcp is accessed sometimes during GC for ArgumentDescriptors; than +// the correct translation has to be performed (was bug). + +inline bool frame::is_bci(intptr_t bcx) { +#ifdef _LP64 + return ((uintptr_t) bcx) <= ((uintptr_t) max_method_code_size) ; +#else + return 0 <= bcx && bcx <= max_method_code_size; +#endif +} + +inline bool frame::is_entry_frame() const { + return StubRoutines::returns_to_call_stub(pc()); +} + +inline bool frame::is_first_frame() const { + return is_entry_frame() && entry_frame_is_first(); +} + +// here are the platform-dependent bodies: + +# include "incls/_frame_pd.inline.hpp.incl"