663 }
664
665 intptr_t* frame::real_fp() const {
666 if (_cb != NULL) {
667 // use the frame size if valid
668 int size = _cb->frame_size();
669 if (size > 0) {
670 return unextended_sp() + size;
671 }
672 }
673 // else rely on fp()
674 assert(! is_compiled_frame(), "unknown compiled frame size");
675 return fp();
676 }
677
678 #ifndef PRODUCT
679 // This is a generic constructor which is only used by pns() in debug.cpp.
680 frame::frame(void* sp, void* fp, void* pc) {
681 init((intptr_t*)sp, (intptr_t*)fp, (address)pc);
682 }
683 #endif
684
685 void JavaFrameAnchor::make_walkable(JavaThread* thread) {
686 // last frame set?
687 if (last_Java_sp() == NULL) return;
688 // already walkable?
689 if (walkable()) return;
690 vmassert(Thread::current() == (Thread*)thread, "not current thread");
691 vmassert(last_Java_sp() != NULL, "not called from Java code?");
692 vmassert(last_Java_pc() == NULL, "already walkable");
693 capture_last_Java_pc();
694 vmassert(walkable(), "something went wrong");
695 }
696
697 void JavaFrameAnchor::capture_last_Java_pc() {
698 vmassert(_last_Java_sp != NULL, "no last frame set");
699 vmassert(_last_Java_pc == NULL, "already walkable");
700 _last_Java_pc = (address)_last_Java_sp[-1];
701 }
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663 }
664
665 intptr_t* frame::real_fp() const {
666 if (_cb != NULL) {
667 // use the frame size if valid
668 int size = _cb->frame_size();
669 if (size > 0) {
670 return unextended_sp() + size;
671 }
672 }
673 // else rely on fp()
674 assert(! is_compiled_frame(), "unknown compiled frame size");
675 return fp();
676 }
677
678 #ifndef PRODUCT
679 // This is a generic constructor which is only used by pns() in debug.cpp.
680 frame::frame(void* sp, void* fp, void* pc) {
681 init((intptr_t*)sp, (intptr_t*)fp, (address)pc);
682 }
683
684 void frame::pd_ps() {}
685
686 #endif
687
688 void JavaFrameAnchor::make_walkable(JavaThread* thread) {
689 // last frame set?
690 if (last_Java_sp() == NULL) return;
691 // already walkable?
692 if (walkable()) return;
693 vmassert(Thread::current() == (Thread*)thread, "not current thread");
694 vmassert(last_Java_sp() != NULL, "not called from Java code?");
695 vmassert(last_Java_pc() == NULL, "already walkable");
696 capture_last_Java_pc();
697 vmassert(walkable(), "something went wrong");
698 }
699
700 void JavaFrameAnchor::capture_last_Java_pc() {
701 vmassert(_last_Java_sp != NULL, "no last frame set");
702 vmassert(_last_Java_pc == NULL, "already walkable");
703 _last_Java_pc = (address)_last_Java_sp[-1];
704 }
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