Create version.txt in a reproduce archive file.

Differential Revision: http://reviews.llvm.org/D21008

llvm-svn: 271901

lld/ELF/Driver.cpp

@@ -248,7 +248,7 @@ void LinkerDriver::main(ArrayRef<const char *> ArgsArr) {
     return;
   }
   if (Args.hasArg(OPT_version)) {
-    printVersion();
+    outs() << getVersionString();
     return;
   }
 
@@ -256,8 +256,10 @@ void LinkerDriver::main(ArrayRef<const char *> ArgsArr) {
     // Note that --reproduce is a debug option so you can ignore it
     // if you are trying to understand the whole picture of the code.
     Cpio.reset(CpioFile::create(Arg->getValue()));
-    if (Cpio)
+    if (Cpio) {
       Cpio->append("response.txt", createResponseFile(Args));
+      Cpio->append("version.txt", getVersionString());
+    }
   }
 
   readConfigs(Args);

lld/ELF/Driver.h

@@ -95,7 +95,7 @@ private:
 };
 
 void printHelp(const char *Argv0);
-void printVersion();
+std::string getVersionString();
 std::vector<uint8_t> parseHexstring(StringRef S);
 
 std::string createResponseFile(const llvm::opt::InputArgList &Args);

lld/ELF/DriverUtils.cpp

@@ -80,12 +80,12 @@ void elf::printHelp(const char *Argv0) {
   Table.PrintHelp(outs(), Argv0, "lld", false);
 }
 
-void elf::printVersion() {
-  outs() << "LLD " << getLLDVersion();
-  std::string S = getLLDRepositoryVersion();
-  if (!S.empty())
-    outs() << " " << S;
-  outs() << "\n";
+std::string elf::getVersionString() {
+  std::string Version = getLLDVersion();
+  std::string Repo = getLLDRepositoryVersion();
+  if (Repo.empty())
+    return "LLD " + Version + "\n";
+  return "LLD " + Version + " " + Repo + "\n";
 }
 
 // Converts a hex string (e.g. "0x123456") to a vector.

lld/test/ELF/reproduce.s

@@ -19,6 +19,9 @@
 # RSP-NEXT: -shared
 # RSP-NEXT: --as-needed
 
+# RUN: FileCheck %s --check-prefix=VERSION < repro/version.txt
+# VERSION: LLD
+
 # RUN: mkdir -p %t.dir/build2/a/b/c
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.dir/build2/foo.o
 # RUN: cd %t.dir/build2/a/b/c
@@ -50,6 +53,7 @@
 
 # RUN: cpio -t < repro2.cpio | FileCheck %s
 # CHECK:      repro2/response.txt
+# CHECK-NEXT: repro2/version.txt
 # CHECK-NEXT: repro2/{{.*}}/dyn
 # CHECK-NEXT: repro2/{{.*}}/ver
 # CHECK-NEXT: repro2/{{.*}}/foo bar