From fa552fc861d4e10cdfd989f60212299b6ee64f38 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <peter@pcc.me.uk>
Date: Thu, 15 Dec 2016 19:37:46 +0000
Subject: [PATCH] LibDriver: Allow resource files to be archive members.

It seems pointless to add a resource to an archive because it won't have
any symbols to link against (and link.exe doesn't have an equivalent of
--whole-archive), but lib.exe allows it for some reason.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289859 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/LibDriver/LibDriver.cpp        |   6 ++++--
 test/LibDriver/Inputs/resource.res | Bin 0 -> 108 bytes
 test/LibDriver/invalid.test        |   2 +-
 test/LibDriver/resource.test       |   3 +++
 4 files changed, 8 insertions(+), 3 deletions(-)
 create mode 100644 test/LibDriver/Inputs/resource.res
 create mode 100644 test/LibDriver/resource.test

diff --git a/lib/LibDriver/LibDriver.cpp b/lib/LibDriver/LibDriver.cpp
index fa9f02c959d..bcdec4f7a93 100644
--- a/lib/LibDriver/LibDriver.cpp
+++ b/lib/LibDriver/LibDriver.cpp
@@ -146,8 +146,10 @@ int llvm::libDriverMain(llvm::ArrayRef<const char*> ArgsArr) {
     sys::fs::file_magic Magic =
         sys::fs::identify_magic(MOrErr->Buf->getBuffer());
     if (Magic != sys::fs::file_magic::coff_object &&
-        Magic != sys::fs::file_magic::bitcode) {
-      llvm::errs() << Arg->getValue() << ": not a COFF object or bitcode file\n";
+        Magic != sys::fs::file_magic::bitcode &&
+        Magic != sys::fs::file_magic::windows_resource) {
+      llvm::errs() << Arg->getValue()
+                   << ": not a COFF object, bitcode or resource file\n";
       return 1;
     }
     Members.emplace_back(std::move(*MOrErr));
diff --git a/test/LibDriver/Inputs/resource.res b/test/LibDriver/Inputs/resource.res
new file mode 100644
index 0000000000000000000000000000000000000000..f1c799fbbb08f4fe197f029008a1c54fd911fbfc
GIT binary patch
literal 108
zcmZQzU|>)H;{X347|28cT0oux5dZ(r2E>eDIRgPs7BB-$urhcsq%!0HVLn0-D+>Sx
CaSE^i

literal 0
HcmV?d00001

diff --git a/test/LibDriver/invalid.test b/test/LibDriver/invalid.test
index 2a8b68cc60f..2978177a431 100644
--- a/test/LibDriver/invalid.test
+++ b/test/LibDriver/invalid.test
@@ -1,2 +1,2 @@
 RUN: not llvm-lib %S/Inputs/cl-gl.obj 2>&1 | FileCheck %s
-CHECK: not a COFF object or bitcode file
+CHECK: not a COFF object, bitcode or resource file
diff --git a/test/LibDriver/resource.test b/test/LibDriver/resource.test
new file mode 100644
index 00000000000..6c3dad50b45
--- /dev/null
+++ b/test/LibDriver/resource.test
@@ -0,0 +1,3 @@
+RUN: llvm-lib /out:%t %S/Inputs/resource.res
+RUN: llvm-ar t %t | FileCheck %s
+CHECK: resource.res