Allow permission line in /proc/self/map to be "rwx", not just "r-x". At

least in Ubuntu14, a binary file that's writable by the process owner
has permission "rwx", not "r-x".

diff --git a/src/symbolize.cc b/src/symbolize.cc
index b25f7479d0df09f0c9dd87637df1a929124fed41..b18796e15e594eb74084884d422afba6cb8147ad 100644 (file)
--- a/src/symbolize.cc
+++ b/src/symbolize.cc
@@ -569,8 +569,8 @@ OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
       return -1;  // Malformed line.
     }
 
-    // Check flags.  We are only interested in "r-x" maps.
-    if (memcmp(flags_start, "r-x", 3) != 0) {  // Not a "r-x" map.
+   // Check flags.  We are only interested in "r*x" maps.
+    if (flags_start[0] != 'r' || flags_start[2] != 'x') {
       continue;  // We skip this map.
     }
     ++cursor;  // Skip ' '.