Add a WITH_CLANG_EXTRAS option for src.conf(5), disabled by default,

that builds the following additional llvm/clang tools:

- bugpoint
- llc
- lli
- llvm-ar
- llvm-as
- llvm-bcanalyzer
- llvm-diff
- llvm-dis
- llvm-extract
- llvm-ld
- llvm-link
- llvm-mc
- llvm-nm
- llvm-objdump
- llvm-prof
- llvm-ranlib
- llvm-rtdyld
- llvm-stub
- macho-dump
- opt

These tools are mainly useful for people that want to manipulate llvm
bitcode (.bc) and llvm assembly language (.ll) files, or want to tinker
with llvm and clang themselves.

MFC after:	2 weeks

1 files changed, 101 insertions, 0 deletions

diff --git a/contrib/llvm/tools/llvm-ranlib/llvm-ranlib.cpp b/contrib/llvm/tools/llvm-ranlib/llvm-ranlib.cpp
new file mode 100644
index 0000000..64f795f
--- /dev/null
+++ b/contrib/llvm/tools/llvm-ranlib/llvm-ranlib.cpp
@@ -0,0 +1,101 @@
+//===-- llvm-ranlib.cpp - LLVM archive index generator --------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Adds or updates an index (symbol table) for an LLVM archive file.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/LLVMContext.h"
+#include "llvm/Module.h"
+#include "llvm/Bitcode/Archive.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/Signals.h"
+#include <memory>
+using namespace llvm;
+
+// llvm-ar operation code and modifier flags
+static cl::opt<std::string>
+ArchiveName(cl::Positional, cl::Optional, cl::desc("<archive-file>"));
+
+static cl::opt<bool>
+Verbose("verbose",cl::Optional,cl::init(false),
+        cl::desc("Print the symbol table"));
+
+// printSymbolTable - print out the archive's symbol table.
+void printSymbolTable(Archive* TheArchive) {
+  outs() << "\nArchive Symbol Table:\n";
+  const Archive::SymTabType& symtab = TheArchive->getSymbolTable();
+  for (Archive::SymTabType::const_iterator I=symtab.begin(), E=symtab.end();
+       I != E; ++I ) {
+    unsigned offset = TheArchive->getFirstFileOffset() + I->second;
+    outs() << " " << format("%9u", offset) << "\t" << I->first <<"\n";
+  }
+}
+
+int main(int argc, char **argv) {
+  // Print a stack trace if we signal out.
+  llvm::sys::PrintStackTraceOnErrorSignal();
+  llvm::PrettyStackTraceProgram X(argc, argv);
+
+  LLVMContext &Context = getGlobalContext();
+  llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
+
+  // Have the command line options parsed and handle things
+  // like --help and --version.
+  cl::ParseCommandLineOptions(argc, argv,
+    "LLVM Archive Index Generator (llvm-ranlib)\n\n"
+    "  This program adds or updates an index of bitcode symbols\n"
+    "  to an LLVM archive file."
+  );
+
+  int exitCode = 0;
+
+  // Make sure we don't exit with "unhandled exception".
+  try {
+
+    // Check the path name of the archive
+    sys::Path ArchivePath;
+    if (!ArchivePath.set(ArchiveName))
+      throw std::string("Archive name invalid: ") + ArchiveName;
+
+    // Make sure it exists, we don't create empty archives
+    bool Exists;
+    if (llvm::sys::fs::exists(ArchivePath.str(), Exists) || !Exists)
+      throw std::string("Archive file does not exist");
+
+    std::string err_msg;
+    std::auto_ptr<Archive>
+      AutoArchive(Archive::OpenAndLoad(ArchivePath, Context, &err_msg));
+    Archive* TheArchive = AutoArchive.get();
+    if (!TheArchive)
+      throw err_msg;
+
+    if (TheArchive->writeToDisk(true, false, false, &err_msg ))
+      throw err_msg;
+
+    if (Verbose)
+      printSymbolTable(TheArchive);
+
+  } catch (const char* msg) {
+    errs() << argv[0] << ": " << msg << "\n\n";
+    exitCode = 1;
+  } catch (const std::string& msg) {
+    errs() << argv[0] << ": " << msg << "\n";
+    exitCode = 2;
+  } catch (...) {
+    errs() << argv[0] << ": An unexpected unknown exception occurred.\n";
+    exitCode = 3;
+  }
+  return exitCode;
+}