[llvm-objcopy][MachO] Add llvm-bitcode-strip driver

This diff adds llvm-bitcode-strip driver to llvm-objcopy.
In the future this will enable us to build a replacement for the tool bitcode_strip.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D87212

1 files changed, 11 insertions, 6 deletions

diff --git a/llvm/tools/llvm-objcopy/llvm-objcopy.cpp b/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
index 69b23b6..ee882ff 100644
--- a/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
+++ b/llvm/tools/llvm-objcopy/llvm-objcopy.cpp
@@ -320,7 +320,7 @@ static Error executeObjcopy(CopyConfig &Config) {
 
 namespace {
 
-enum class ToolType { Objcopy, Strip, InstallNameTool };
+enum class ToolType { Objcopy, Strip, InstallNameTool, BitcodeStrip };
 
 } // anonymous namespace
 
@@ -341,7 +341,9 @@ int main(int argc, char **argv) {
            (I + Tool.size() == Stem.size() || !isAlnum(Stem[I + Tool.size()]));
   };
   ToolType Tool = ToolType::Objcopy;
-  if (Is("strip"))
+  if (Is("bitcode-strip") || Is("bitcode_strip"))
+    Tool = ToolType::BitcodeStrip;
+  else if (Is("strip"))
     Tool = ToolType::Strip;
   else if (Is("install-name-tool") || Is("install_name_tool"))
     Tool = ToolType::InstallNameTool;
@@ -361,10 +363,13 @@ int main(int argc, char **argv) {
 
   auto Args = makeArrayRef(NewArgv).drop_front();
   Expected<DriverConfig> DriverConfig =
-      (Tool == ToolType::Strip) ? parseStripOptions(Args, reportWarning)
-                                : ((Tool == ToolType::InstallNameTool)
-                                       ? parseInstallNameToolOptions(Args)
-                                       : parseObjcopyOptions(Args, reportWarning));
+      (Tool == ToolType::Strip)
+          ? parseStripOptions(Args, reportWarning)
+          : ((Tool == ToolType::InstallNameTool)
+                 ? parseInstallNameToolOptions(Args)
+                 : ((Tool == ToolType::BitcodeStrip)
+                        ? parseBitcodeStripOptions(Args)
+                        : parseObjcopyOptions(Args, reportWarning)));
   if (!DriverConfig) {
     logAllUnhandledErrors(DriverConfig.takeError(),
                           WithColor::error(errs(), ToolName));