[PATCH 21/22] covoar: Fix overflow of high PC address

[Alex White]

This fixes an integer overflow that would occur if a function's high PC
address were zero in the DWARF info.
---
 tester/covoar/ExecutableInfo.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tester/covoar/ExecutableInfo.cc b/tester/covoar/ExecutableInfo.cc
index 30828a6..7f33f20 100644
--- a/tester/covoar/ExecutableInfo.cc
+++ b/tester/covoar/ExecutableInfo.cc
@@ -71,6 +71,11 @@ namespace Coverage {
             }
           }
 
+          // We can't process a zero size function.
+          if (func.pc_high() == 0) {
+            continue;
+          }
+
           createCoverageMap (cu.name(), func.name(),
                               func.pc_low(), func.pc_high() - 1);
         }
-- 
2.27.0