1 files changed, 60 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Support/ToolOutputFile.cpp b/contrib/llvm-project/llvm/lib/Support/ToolOutputFile.cpp
new file mode 100644
index 000000000000..c192ce60f31c
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/Support/ToolOutputFile.cpp
@@ -0,0 +1,60 @@
+//===--- ToolOutputFile.cpp - Implement the ToolOutputFile class --------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This implements the ToolOutputFile class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/ToolOutputFile.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Signals.h"
+using namespace llvm;
+
+static bool isStdout(StringRef Filename) { return Filename == "-"; }
+
+ToolOutputFile::CleanupInstaller::CleanupInstaller(StringRef Filename)
+    : Filename(std::string(Filename)), Keep(false) {
+  // Arrange for the file to be deleted if the process is killed.
+  if (!isStdout(Filename))
+    sys::RemoveFileOnSignal(Filename);
+}
+
+ToolOutputFile::CleanupInstaller::~CleanupInstaller() {
+  if (isStdout(Filename))
+    return;
+
+  // Delete the file if the client hasn't told us not to.
+  if (!Keep)
+    sys::fs::remove(Filename);
+
+  // Ok, the file is successfully written and closed, or deleted. There's no
+  // further need to clean it up on signals.
+  sys::DontRemoveFileOnSignal(Filename);
+}
+
+ToolOutputFile::ToolOutputFile(StringRef Filename, std::error_code &EC,
+                               sys::fs::OpenFlags Flags)
+    : Installer(Filename) {
+  if (isStdout(Filename)) {
+    OS = &outs();
+    EC = std::error_code();
+    return;
+  }
+  OSHolder.emplace(Filename, EC, Flags);
+  OS = OSHolder.getPointer();
+  // If open fails, no cleanup is needed.
+  if (EC)
+    Installer.Keep = true;
+}
+
+ToolOutputFile::ToolOutputFile(StringRef Filename, int FD)
+    : Installer(Filename) {
+  OSHolder.emplace(FD, true);
+  OS = OSHolder.getPointer();
+}