1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Support/Unix/Path.inc b/lib/Support/Unix/Path.inc
index 0c1623acdc..84f8d37493 100644
--- a/lib/Support/Unix/Path.inc
+++ b/lib/Support/Unix/Path.inc
@@ -815,6 +815,15 @@ error_code unmap_file_pages(void *base, size_t size) {
   return error_code::success();
 }
 
+error_code openFileForRead(const Twine &Name, int &ResultFD) {
+  SmallString<128> Storage;
+  StringRef P = Name.toNullTerminatedStringRef(Storage);
+  while ((ResultFD = open(P.begin(), O_RDONLY)) < 0) {
+    if (errno != EINTR)
+      return error_code(errno, system_category());
+  }
+  return error_code::success();
+}
 
 } // end namespace fs
 } // end namespace sys