76                                       uptr stack_top,  in GetCanonicFrame()  argument
78   CHECK_GT(stack_top, stack_bottom);  in GetCanonicFrame()
80   if (!IsValidFrame(bp, stack_top, stack_bottom)) return 0;  in GetCanonicFrame()
82   if (IsValidFrame((uptr)bp_prev[0], stack_top, stack_bottom)) return bp_prev;  in GetCanonicFrame()
85   if (IsValidFrame((uptr)bp_prev[-1], stack_top, stack_bottom))  in GetCanonicFrame()
97 void BufferedStackTrace::UnwindFast(uptr pc, uptr bp, uptr stack_top,  in UnwindFast()  argument
104   if (stack_top < 4096) return;  // Sanity check for stack top.  in UnwindFast()
105   uhwptr *frame = GetCanonicFrame(bp, stack_top, stack_bottom);  in UnwindFast()
110   while (IsValidFrame((uptr)frame, stack_top, bottom) &&  in UnwindFast()
118     if (!IsValidFrame((uptr)caller_frame, stack_top, bottom) ||  in UnwindFast()
145     frame = GetCanonicFrame(new_bp, stack_top, bottom);  in UnwindFast()