42 static inline bool IsValidFrame(uptr frame, uptr stack_top, uptr stack_bottom) {  in IsValidFrame()  argument
43   return frame > stack_bottom && frame < stack_top - 2 * sizeof (uhwptr);  in IsValidFrame()
50                                       uptr stack_top,  in GetCanonicFrame()  argument
53   if (!IsValidFrame(bp, stack_top, stack_bottom)) return 0;  in GetCanonicFrame()
55   if (IsValidFrame((uptr)bp_prev[0], stack_top, stack_bottom)) return bp_prev;  in GetCanonicFrame()
58   if (IsValidFrame((uptr)bp_prev[-1], stack_top, stack_bottom))  in GetCanonicFrame()
70 void BufferedStackTrace::FastUnwindStack(uptr pc, uptr bp, uptr stack_top,  in FastUnwindStack()  argument
75   if (stack_top < 4096) return;  // Sanity check for stack top.  in FastUnwindStack()
76   uhwptr *frame = GetCanonicFrame(bp, stack_top, stack_bottom);  in FastUnwindStack()
81   while (IsValidFrame((uptr)frame, stack_top, bottom) &&  in FastUnwindStack()
89     frame = GetCanonicFrame((uptr)frame[0], stack_top, bottom);  in FastUnwindStack()