Support: Add PathV2 implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120329 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Unix/PathV2.inc b/lib/Support/Unix/PathV2.inc
new file mode 100644
index 0000000..bcd93f0
--- /dev/null
+++ b/lib/Support/Unix/PathV2.inc
@@ -0,0 +1,39 @@
+//===- llvm/Support/Unix/PathV2.cpp - Unix Path Implementation --*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Unix specific implementation of the PathV2 API.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only generic UNIX code that
+//=== is guaranteed to work on *all* UNIX variants.
+//===----------------------------------------------------------------------===//
+
+#include "Unix.h"
+
+namespace llvm {
+namespace sys {
+namespace path {
+
+error_code current_path(SmallVectorImpl<char> &result) {
+ long size = ::pathconf(".", _PC_PATH_MAX);
+ result.reserve(size + 1);
+ result.set_size(size + 1);
+
+ if (::getcwd(result.data(), result.size()) == 0)
+ return error_code(errno, system_category());
+
+ result.set_size(strlen(result.data()));
+ return make_error_code(errc::success);
+}
+
+} // end namespace path
+} // end namespace sys
+} // end namespace llvm