1 files changed, 105 insertions, 0 deletions
diff --git a/include/clang/Driver/ToolChain.h b/include/clang/Driver/ToolChain.h
new file mode 100644
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+++ b/include/clang/Driver/ToolChain.h
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+//===--- ToolChain.h - Collections of tools for one platform ----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_DRIVER_TOOLCHAIN_H_
+#define CLANG_DRIVER_TOOLCHAIN_H_
+
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/System/Path.h"
+#include <string>
+
+namespace clang {
+namespace driver {
+  class Compilation;
+  class DerivedArgList;
+  class HostInfo;
+  class InputArgList;
+  class JobAction;
+  class Tool;
+
+/// ToolChain - Access to tools for a single platform.
+class ToolChain {
+public:
+  typedef llvm::SmallVector<std::string, 4> path_list;
+
+private:
+  const HostInfo &Host;
+  const llvm::Triple Triple;
+
+  /// The list of toolchain specific path prefixes to search for
+  /// files.
+  path_list FilePaths;
+
+  /// The list of toolchain specific path prefixes to search for
+  /// programs.
+  path_list ProgramPaths;
+
+protected:
+  ToolChain(const HostInfo &Host, const llvm::Triple &_Triple);
+
+public:
+  virtual ~ToolChain();
+
+  // Accessors
+
+  const HostInfo &getHost() const { return Host; }
+  std::string getArchName() const { return Triple.getArchName(); }
+  std::string getPlatform() const { return Triple.getVendorName(); }
+  std::string getOS() const { return Triple.getOSName(); }
+
+  std::string getTripleString() const {
+    return Triple.getTriple();
+  }
+
+  path_list &getFilePaths() { return FilePaths; }
+  const path_list &getFilePaths() const { return FilePaths; }
+
+  path_list &getProgramPaths() { return ProgramPaths; }
+  const path_list &getProgramPaths() const { return ProgramPaths; }
+
+  // Tool access.
+
+  /// TranslateArgs - Create a new derived argument list for any
+  /// argument translations this ToolChain may wish to perform.
+  virtual DerivedArgList *TranslateArgs(InputArgList &Args) const = 0;
+
+  /// SelectTool - Choose a tool to use to handle the action \arg JA.
+  virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const = 0;
+
+  // Helper methods
+
+  llvm::sys::Path GetFilePath(const Compilation &C, const char *Name) const;
+  llvm::sys::Path GetProgramPath(const Compilation &C, const char *Name,
+                                 bool WantFile = false) const;
+
+  // Platform defaults information
+
+  /// IsMathErrnoDefault - Does this tool chain set -fmath-errno by
+  /// default.
+  virtual bool IsMathErrnoDefault() const = 0;
+
+  /// IsUnwindTablesDefault - Does this tool chain use -funwind-tables
+  /// by default.
+  virtual bool IsUnwindTablesDefault() const = 0;
+
+  /// GetDefaultRelocationModel - Return the LLVM name of the default
+  /// relocation model for this tool chain.
+  virtual const char *GetDefaultRelocationModel() const = 0;
+
+  /// GetForcedPicModel - Return the LLVM name of the forced PIC model
+  /// for this tool chain, or 0 if this tool chain does not force a
+  /// particular PIC mode.
+  virtual const char *GetForcedPicModel() const = 0;
+};
+
+} // end namespace driver
+} // end namespace clang
+
+#endif