[PECOFF] Do not set the entry address if /noentry option is given.

This is the first step towards DLL creation support. Resource-only DLLs
don't have entry point address.

llvm-svn: 195510

1 files changed, 15 insertions, 0 deletions

diff --git a/lld/unittests/DriverTests/WinLinkDriverTest.cpp b/lld/unittests/DriverTests/WinLinkDriverTest.cpp
index 89a590fbd91..fbe6cdd8498 100644
--- a/lld/unittests/DriverTests/WinLinkDriverTest.cpp
+++ b/lld/unittests/DriverTests/WinLinkDriverTest.cpp
@@ -341,6 +341,21 @@ TEST_F(WinLinkParserTest, DisallowLib) {
 }
 
 //
+// Tests for DLL.
+//
+
+TEST_F(WinLinkParserTest, NoEntry) {
+  EXPECT_TRUE(parse("link.exe", "/noentry", "/dll", "a.obj", nullptr));
+  EXPECT_EQ("", _context.entrySymbolName());
+}
+
+TEST_F(WinLinkParserTest, NoEntryError) {
+  // /noentry without /dll is an error.
+  EXPECT_FALSE(parse("link.exe", "/noentry", "a.obj", nullptr));
+  EXPECT_EQ("/noentry must be specified with /dll\n", errorMessage());
+}
+
+//
 // Tests for boolean flags.
 //