From: Yaz Saito on W541 <saito@carbon3d.com>
Date: Mon, 11 Apr 2016 21:35:42 +0000 (-0700)
Subject: Allow permission line in /proc/self/map to be "rwx", not just "r-x". At
X-Git-Tag: submit/tizen/20180313.064233~62^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d630221933e4dea8441d7de2419c0c87cc4ecd93;p=platform%2Fupstream%2Fglog.git

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 b25f747..b18796e 100644
--- 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 ' '.