1.1 --- a/src/share/vm/runtime/frame.hpp Fri Jan 13 12:58:26 2012 -0800
1.2 +++ b/src/share/vm/runtime/frame.hpp Wed Jan 18 16:18:31 2012 +0100
1.3 @@ -1,5 +1,5 @@
1.4 /*
1.5 - * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
1.7 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 *
1.9 * This code is free software; you can redistribute it and/or modify it
1.10 @@ -221,6 +221,15 @@
1.11 // returns the stack pointer of the calling frame
1.12 intptr_t* sender_sp() const;
1.13
1.14 + // Returns the real 'frame pointer' for the current frame.
1.15 + // This is the value expected by the platform ABI when it defines a
1.16 + // frame pointer register. It may differ from the effective value of
1.17 + // the FP register when that register is used in the JVM for other
1.18 + // purposes (like compiled frames on some platforms).
1.19 + // On other platforms, it is defined so that the stack area used by
1.20 + // this frame goes from real_fp() to sp().
1.21 + intptr_t* real_fp() const;
1.22 +
1.23 // Deoptimization info, if needed (platform dependent).
1.24 // Stored in the initial_info field of the unroll info, to be used by
1.25 // the platform dependent deoptimization blobs.
