libdw: Proper handling of DW_AT_high_pc

Since DWARF4 DW_AT_high_pc may be a constant.
Which should be added to the DW_AT_low_pc value to get the address.

Signed-off-by: Djordje Todorovic <djordje.todorovic@rt-rk.com>

diff --git a/libdw/c++/dwarf-knowledge.cc b/libdw/c++/dwarf-knowledge.cc
index ea80091cdc2d173e345e91ad44e4cf5c149224b7..8543f9b39490df533b129ff1bda8dd9376dcac7a 100644 (file)
--- a/libdw/c++/dwarf-knowledge.cc
+++ b/libdw/c++/dwarf-knowledge.cc
@@ -121,10 +121,12 @@ expected_value_space (int attr, int tag)
       return VS(rangelistptr);
 
     case DW_AT_low_pc:
-    case DW_AT_high_pc:
     case DW_AT_entry_pc:
       return VS(address);
 
+    case DW_AT_high_pc:
+      return VS(address) | VS(constant);
+
     case DW_AT_discr:
       return VS(reference);
     case DW_AT_discr_value: