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, 42 insertions, 0 deletions

diff --git a/contrib/llvm/tools/llvm-mc/Disassembler.h b/contrib/llvm/tools/llvm-mc/Disassembler.h
new file mode 100644
index 0000000..e8cd92d
--- /dev/null
+++ b/contrib/llvm/tools/llvm-mc/Disassembler.h
@@ -0,0 +1,42 @@
+//===- Disassembler.h - Text File Disassembler ----------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class implements the disassembler of strings of bytes written in
+// hexadecimal, from standard input or from a file.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef DISASSEMBLER_H
+#define DISASSEMBLER_H
+
+#include <string>
+
+namespace llvm {
+
+class MemoryBuffer;
+class Target;
+class raw_ostream;
+
+class Disassembler {
+public:
+  static int disassemble(const Target &target,
+                         const std::string &tripleString,
+                         const std::string &Cpu,
+                         const std::string &FeaturesStr,
+                         MemoryBuffer &buffer,
+                         raw_ostream &Out);
+
+  static int disassembleEnhanced(const std::string &tripleString,
+                                 MemoryBuffer &buffer,
+                                 raw_ostream &Out);
+};
+
+} // namespace llvm
+
+#endif