Replaced strerror() calls with threadsafe strerror_r()

runtime/bin/file_linux.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_LINUX)
 
 #include "bin/file.h"
 
 #include <errno.h>  // NOLINT
@@ skipping 29 matching lines @@
     Close();
   }
   delete handle_;
 }
 
 
 void File::Close() {
   ASSERT(handle_->fd() >= 0);
   int err = TEMP_FAILURE_RETRY(close(handle_->fd()));
   if (err != 0) {
-    Log::PrintErr("%s\n", strerror(errno));
+    const int kBufferSize = 1024;
+    char error_buf[kBufferSize];
+    Log::PrintErr("%s\n", strerror_r(errno, error_buf, kBufferSize));
   }
   handle_->set_fd(kClosedFd);
 }
 
 
 bool File::IsClosed() {
   return handle_->fd() == kClosedFd;
 }
 
 
@@ skipping 240 matching lines @@
 const char* File::StringEscapedPathSeparator() {
   return "/";
 }
 
 
 File::StdioHandleType File::GetStdioHandleType(int fd) {
   ASSERT(0 <= fd && fd <= 2);
   struct stat buf;
   int result = fstat(fd, &buf);
   if (result == -1) {
-    FATAL2("Failed stat on file descriptor %d: %s", fd, strerror(errno));
+    const int kBufferSize = 1024;
+    char error_buf[kBufferSize];
+    FATAL2("Failed stat on file descriptor %d: %s", fd,
+           strerror_r(errno, error_buf, kBufferSize));
   }
   if (S_ISCHR(buf.st_mode)) return kTerminal;
   if (S_ISFIFO(buf.st_mode)) return kPipe;
   if (S_ISSOCK(buf.st_mode)) return kSocket;
   if (S_ISREG(buf.st_mode)) return kFile;
   return kOther;
 }
 
 
 File::Type File::GetType(const char* pathname, bool follow_links) {
@@ skipping 22 matching lines @@
   return (file_1_info.st_ino == file_2_info.st_ino &&
           file_1_info.st_dev == file_2_info.st_dev) ?
       File::kIdentical :
       File::kDifferent;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)