https://github.com/jhuber6 updated
https://github.com/llvm/llvm-project/pull/84322
>From 8ffd2e22efc5ae6cc939802f6a2913f334dfcc54 Mon Sep 17 00:00:00 2001
From: Joseph Huber <hube...@outlook.com>
Date: Thu, 7 Mar 2024 07:48:38 -0600
Subject: [PATCH] [LinkerWrapper] Use the correct empty file on Windows
Summary:
The clang-offload-bundler uses an empty file to control the bundles made
for embedding. Previously this still used `/dev/null` by mistake even on
Windows.
---
clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp
b/clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp
index 576e8f2cd7f8fd..0a783db8962ba7 100644
--- a/clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp
+++ b/clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp
@@ -410,7 +410,11 @@ fatbinary(ArrayRef<std::pair<StringRef, StringRef>>
InputFiles,
Targets.push_back(Saver.save("hipv4-amdgcn-amd-amdhsa--" + Arch));
CmdArgs.push_back(Saver.save(llvm::join(Targets, ",")));
+#ifdef _WIN32
+ CmdArgs.push_back("-input=NUL");
+#else
CmdArgs.push_back("-input=/dev/null");
+#endif
for (const auto &[File, Arch] : InputFiles)
CmdArgs.push_back(Saver.save("-input=" + File));
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