Replaced strerror() calls with threadsafe strerror_r()

runtime/bin/eventhandler_android.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_ANDROID)
 
 #include "bin/eventhandler.h"
 
 #include <errno.h>  // NOLINT
@@ skipping 70 matching lines @@
                                             sd->fd(),
                                             &event));
     } else {
       status = TEMP_FAILURE_RETRY(epoll_ctl(epoll_fd_,
                                             EPOLL_CTL_ADD,
                                             sd->fd(),
                                             &event));
       sd->set_tracked_by_epoll(true);
     }
     if (status == -1) {
-      FATAL1("Failed updating epoll instance: %s", strerror(errno));
+      const int kBufferSize = 1024;
+      char error_message[kBufferSize];
+      strerror_r(errno, error_message, kBufferSize);
+      FATAL1("Failed updating epoll instance: %s", error_message);
     }
   }
 }
 
 
 EventHandlerImplementation::EventHandlerImplementation()
     : socket_map_(&HashMap::SamePointerValue, 16) {
   intptr_t result;
   result = TEMP_FAILURE_RETRY(pipe(interrupt_fds_));
   if (result != 0) {
@@ skipping 197 matching lines @@
           // recv to peek for whether the other end of the socket
           // actually closed.
           char buffer;
           ssize_t bytesPeeked =
               TEMP_FAILURE_RETRY(recv(sd->fd(), &buffer, 1, MSG_PEEK));
           ASSERT(EAGAIN == EWOULDBLOCK);
           if (bytesPeeked == 0) {
             event_mask = (1 << kCloseEvent);
             sd->MarkClosedRead();
           } else if (errno != EWOULDBLOCK) {
-            Log::PrintErr("Error recv: %s\n", strerror(errno));
+            const int kBufferSize = 1024;
+            char error_message[kBufferSize];
+            strerror_r(errno, error_message, kBufferSize);
+            Log::PrintErr("Error recv: %s\n", error_message);
           }
         }
       }
     }
 
     // On pipes EPOLLHUP is reported without EPOLLIN when there is no
     // more data to read.
     if (sd->IsPipe()) {
       if (((events & EPOLLIN) == 0) &&
           ((events & EPOLLHUP) != 0)) {
@@ skipping 115 matching lines @@
 
 uint32_t EventHandlerImplementation::GetHashmapHashFromFd(intptr_t fd) {
   // The hashmap does not support keys with value 0.
   return dart::Utils::WordHash(fd + 1);
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_ANDROID)