commit d669de90be1ba7e601fcd83092a0e9ca5effa178
author Dan Albert <danalbert@google.com> Fri Apr 15 13:42:41 2016 -0700
committer Christopher Wiley <wiley@google.com> Thu Jun 02 10:22:30 2016 -0700
tree 3158965a923bc82494016c96961ca1211b9cec59
parent 303b43ca5a93ce89f438ad4dd200c0ca317832de

Include the failed directory name if _mkdir fails.

( cherry-picked from 767d301911e31216e0f7c2659e79cf8f3763575e )

http://b.android.com/202972 shows a failure here, but we lack the
information to know what the bad input was. My guess is that it's
caused by POSIX path separators, but we should add more details to
the error message for the future.

Bug: http://b.android.com/202972
Bug: 29091703
Change-Id: I6fa131604e0268c6ddbea5c9d1499897754f197d

io_delegate.cpp

diff --git a/io_delegate.cpp b/io_delegate.cpp
index aabe4cb..66891dd 100644
--- a/io_delegate.cpp
+++ b/io_delegate.cpp
@@ -99,8 +99,9 @@
 #endif
     // On darwin when you try to mkdir("/", ...) we get EISDIR.
     if (!success && (errno != EEXIST && errno != EISDIR)) {
-       LOG(ERROR) << "Error while creating directories: " << strerror(errno);
-       return false;
+      LOG(ERROR) << "Error while creating " << base_dir << ": "
+                 << strerror(errno);
+      return false;
     }
   }
   return true;