From 3f14fb1a0b3fac070714caa82bf938c410bbe232 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Thu, 2 Dec 2004 21:26:10 +0000
Subject: [PATCH] Recognize  --strip-all as a synonym for -s. Add -S and
 --strip-debug option support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18441 91177308-0d34-0410-b5e6-96231b3b80d8
---
 tools/gccld/GenerateCode.cpp | 15 ++++++++-------
 tools/gccld/gccld.cpp        | 13 +++++++++++--
 tools/gccld/gccld.h          |  2 +-
 3 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/tools/gccld/GenerateCode.cpp b/tools/gccld/GenerateCode.cpp
index f22319df5bf..84eba1b505b 100644
--- a/tools/gccld/GenerateCode.cpp
+++ b/tools/gccld/GenerateCode.cpp
@@ -130,13 +130,14 @@ static inline void addPass(PassManager &PM, Pass *P) {
 ///
 /// Inputs:
 ///  M           - The module for which bytecode should be generated.
-///  Strip       - Flags whether symbols should be stripped from the output.
+///  StripLevel  - 2 if we should strip all symbols, 1 if we should strip
+///                debug info.
 ///  Internalize - Flags whether all symbols should be marked internal.
 ///  Out         - Pointer to file stream to which to write the output.
 ///
 /// Returns non-zero value on error.
 ///
-int llvm::GenerateBytecode(Module *M, bool Strip, bool Internalize,
+int llvm::GenerateBytecode(Module *M, int StripLevel, bool Internalize,
                            std::ostream *Out) {
   // In addition to just linking the input from GCC, we also want to spiff it up
   // a little bit.  Do this now.
@@ -208,11 +209,11 @@ int llvm::GenerateBytecode(Module *M, bool Strip, bool Internalize,
     addPass(Passes, createGlobalDCEPass());
   }
 
-  // If the -s command line option was specified, strip the symbols out of the
-  // resulting program to make it smaller.  -s is a GCC option that we are
-  // supporting.
-  if (Strip)
-    addPass(Passes, createSymbolStrippingPass());
+  // If the -s or -S command line options were specified, strip the symbols out
+  // of the resulting program to make it smaller.  -s and -S are GLD options
+  // that we are supporting.
+  if (StripLevel)
+    addPass(Passes, createStripSymbolsPass(StripLevel == 1));
 
   // Make sure everything is still good.
   Passes.add(createVerifierPass());
diff --git a/tools/gccld/gccld.cpp b/tools/gccld/gccld.cpp
index 5a19866bca4..c1f430affa4 100644
--- a/tools/gccld/gccld.cpp
+++ b/tools/gccld/gccld.cpp
@@ -58,7 +58,10 @@ namespace {
             cl::value_desc("library prefix"));
 
   cl::opt<bool>
-  Strip("s", cl::desc("Strip symbol info from executable"));
+  Strip("strip-all", cl::desc("Strip all symbol info from executable"));
+  cl::opt<bool>
+  StripDebug("strip-debug",
+             cl::desc("Strip debugger symbol info from executable"));
 
   cl::opt<bool>
   NoInternalize("disable-internalize",
@@ -90,6 +93,11 @@ namespace {
   CO5("eh-frame-hdr", cl::Hidden, cl::desc("Compatibility option: ignored"));
   cl::opt<std::string>
   CO6("h", cl::Hidden, cl::desc("Compatibility option: ignored"));
+
+  cl::alias A0("s", cl::desc("Alias for --strip-all"),
+               cl::aliasopt(Strip));
+  cl::alias A1("S", cl::desc("Alias for --strip-debug"),
+               cl::aliasopt(StripDebug));
 }
 
 /// PrintAndReturn - Prints a message to standard error and returns true.
@@ -199,7 +207,8 @@ int main(int argc, char **argv, char **envp) {
     sys::RemoveFileOnSignal(sys::Path(RealBytecodeOutput));
 
     // Generate the bytecode file.
-    if (GenerateBytecode(Composite.get(), Strip, !NoInternalize, &Out)) {
+    int StripLevel = Strip ? 2 : (StripDebug ? 1 : 0);
+    if (GenerateBytecode(Composite.get(), StripLevel, !NoInternalize, &Out)) {
       Out.close();
       return PrintAndReturn(argv[0], "error generating bytecode");
     }
diff --git a/tools/gccld/gccld.h b/tools/gccld/gccld.h
index 6ac1ca00a85..48dcecee28d 100644
--- a/tools/gccld/gccld.h
+++ b/tools/gccld/gccld.h
@@ -22,7 +22,7 @@ namespace llvm {
 
 int
 GenerateBytecode (Module * M,
-                  bool Strip,
+                  int StripLevel,
                   bool Internalize,
                   std::ostream * Out);