+/* Checks if ADDRESS is within the range of addresses for which
+ we have histogram data. Returns 1 if so and 0 otherwise. */
+extern int hist_check_address (unsigned address);
+
+/* Given a range of addresses for a symbol, find a histogram record
+ that intersects with this range, and clips the range to that
+ histogram record, modifying *P_LOWPC and *P_HIGHPC.
+
+ If no intersection is found, *P_LOWPC and *P_HIGHPC will be set to
+ one unspecified value. If more that one intersection is found,
+ an error is emitted. */
+extern void hist_clip_symbol_address (bfd_vma *p_lowpc, bfd_vma *p_highpc);
+