src/llvm/tools/bugpoint/ToolRunner.h

   1 //===-- tools/bugpoint/ToolRunner.h -----------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file exposes an abstraction around a platform C compiler, used to
  11 // compile C and assembly code.  It also exposes an "AbstractIntepreter"
  12 // interface, which is used to execute code using one of the LLVM execution
  13 // engines.
  14 //
  15 //===----------------------------------------------------------------------===//
  16
  17 #ifndef LLVM_TOOLS_BUGPOINT_TOOLRUNNER_H
  18 #define LLVM_TOOLS_BUGPOINT_TOOLRUNNER_H
  19
  20 #include "llvm/ADT/Triple.h"
  21 #include "llvm/Support/CommandLine.h"
  22 #include "llvm/Support/ErrorHandling.h"
  23 #include "llvm/Support/Path.h"
  24 #include "llvm/Support/SystemUtils.h"
  25 #include <exception>
  26 #include <vector>
  27
  28 namespace llvm {
  29
  30 extern cl::opt<bool> SaveTemps;
  31 extern Triple TargetTriple;
  32
  33 class LLC;
  34
  35 //===---------------------------------------------------------------------===//
  36 // GCC abstraction
  37 //
  38 class GCC {
  39   std::string GCCPath;                // The path to the gcc executable.
  40   std::string RemoteClientPath;       // The path to the rsh / ssh executable.
  41   std::vector<std::string> gccArgs; // GCC-specific arguments.
  42   GCC(StringRef gccPath, StringRef RemotePath,
  43       const std::vector<std::string> *GCCArgs)
  44     : GCCPath(gccPath), RemoteClientPath(RemotePath) {
  45     if (GCCArgs) gccArgs = *GCCArgs;
  46   }
  47 public:
  48   enum FileType { AsmFile, ObjectFile, CFile };
  49
  50   static GCC *create(std::string &Message,
  51                      const std::string &GCCBinary,
  52                      const std::vector<std::string> *Args);
  53
  54   /// ExecuteProgram - Execute the program specified by "ProgramFile" (which is
  55   /// either a .s file, or a .c file, specified by FileType), with the specified
  56   /// arguments.  Standard input is specified with InputFile, and standard
  57   /// Output is captured to the specified OutputFile location.  The SharedLibs
  58   /// option specifies optional native shared objects that can be loaded into
  59   /// the program for execution.
  60   ///
  61   int ExecuteProgram(const std::string &ProgramFile,
  62                      const std::vector<std::string> &Args,
  63                      FileType fileType,
  64                      const std::string &InputFile,
  65                      const std::string &OutputFile,
  66                      std::string *Error = nullptr,
  67                      const std::vector<std::string> &GCCArgs =
  68                          std::vector<std::string>(),
  69                      unsigned Timeout = 0,
  70                      unsigned MemoryLimit = 0);
  71
  72   /// MakeSharedObject - This compiles the specified file (which is either a .c
  73   /// file or a .s file) into a shared object.
  74   ///
  75   int MakeSharedObject(const std::string &InputFile, FileType fileType,
  76                        std::string &OutputFile,
  77                        const std::vector<std::string> &ArgsForGCC,
  78                        std::string &Error);
  79 };
  80
  81
  82 //===---------------------------------------------------------------------===//
  83 /// AbstractInterpreter Class - Subclasses of this class are used to execute
  84 /// LLVM bitcode in a variety of ways.  This abstract interface hides this
  85 /// complexity behind a simple interface.
  86 ///
  87 class AbstractInterpreter {
  88   virtual void anchor();
  89 public:
  90   static LLC *createLLC(const char *Argv0, std::string &Message,
  91                         const std::string              &GCCBinary,
  92                         const std::vector<std::string> *Args = nullptr,
  93                         const std::vector<std::string> *GCCArgs = nullptr,
  94                         bool UseIntegratedAssembler = false);
  95
  96   static AbstractInterpreter*
  97   createLLI(const char *Argv0, std::string &Message,
  98             const std::vector<std::string> *Args = nullptr);
  99
 100   static AbstractInterpreter*
 101   createJIT(const char *Argv0, std::string &Message,
 102             const std::vector<std::string> *Args = nullptr);
 103
 104   static AbstractInterpreter*
 105   createCustomCompiler(std::string &Message,
 106                        const std::string &CompileCommandLine);
 107
 108   static AbstractInterpreter*
 109   createCustomExecutor(std::string &Message,
 110                        const std::string &ExecCommandLine);
 111
 112
 113   virtual ~AbstractInterpreter() {}
 114
 115   /// compileProgram - Compile the specified program from bitcode to executable
 116   /// code.  This does not produce any output, it is only used when debugging
 117   /// the code generator.  It returns false if the code generator fails.
 118   virtual void compileProgram(const std::string &Bitcode, std::string *Error,
 119                               unsigned Timeout = 0, unsigned MemoryLimit = 0) {}
 120
 121   /// OutputCode - Compile the specified program from bitcode to code
 122   /// understood by the GCC driver (either C or asm).  If the code generator
 123   /// fails, it sets Error, otherwise, this function returns the type of code
 124   /// emitted.
 125   virtual GCC::FileType OutputCode(const std::string &Bitcode,
 126                                    std::string &OutFile, std::string &Error,
 127                                    unsigned Timeout = 0,
 128                                    unsigned MemoryLimit = 0) {
 129     Error = "OutputCode not supported by this AbstractInterpreter!";
 130     return GCC::AsmFile;
 131   }
 132
 133   /// ExecuteProgram - Run the specified bitcode file, emitting output to the
 134   /// specified filename.  This sets RetVal to the exit code of the program or
 135   /// returns false if a problem was encountered that prevented execution of
 136   /// the program.
 137   ///
 138   virtual int ExecuteProgram(const std::string &Bitcode,
 139                              const std::vector<std::string> &Args,
 140                              const std::string &InputFile,
 141                              const std::string &OutputFile,
 142                              std::string *Error,
 143                              const std::vector<std::string> &GCCArgs =
 144                                std::vector<std::string>(),
 145                              const std::vector<std::string> &SharedLibs =
 146                                std::vector<std::string>(),
 147                              unsigned Timeout = 0,
 148                              unsigned MemoryLimit = 0) = 0;
 149 };
 150
 151 //===---------------------------------------------------------------------===//
 152 // LLC Implementation of AbstractIntepreter interface
 153 //
 154 class LLC : public AbstractInterpreter {
 155   std::string LLCPath;               // The path to the LLC executable.
 156   std::vector<std::string> ToolArgs; // Extra args to pass to LLC.
 157   GCC *gcc;
 158   bool UseIntegratedAssembler;
 159 public:
 160   LLC(const std::string &llcPath, GCC *Gcc,
 161       const std::vector<std::string> *Args,
 162       bool useIntegratedAssembler)
 163     : LLCPath(llcPath), gcc(Gcc),
 164       UseIntegratedAssembler(useIntegratedAssembler) {
 165     ToolArgs.clear();
 166     if (Args) ToolArgs = *Args;
 167   }
 168   ~LLC() { delete gcc; }
 169
 170   /// compileProgram - Compile the specified program from bitcode to executable
 171   /// code.  This does not produce any output, it is only used when debugging
 172   /// the code generator.  Returns false if the code generator fails.
 173   void compileProgram(const std::string &Bitcode, std::string *Error,
 174                       unsigned Timeout = 0, unsigned MemoryLimit = 0) override;
 175
 176   int ExecuteProgram(const std::string &Bitcode,
 177                      const std::vector<std::string> &Args,
 178                      const std::string &InputFile,
 179                      const std::string &OutputFile,
 180                      std::string *Error,
 181                      const std::vector<std::string> &GCCArgs =
 182                        std::vector<std::string>(),
 183                      const std::vector<std::string> &SharedLibs =
 184                         std::vector<std::string>(),
 185                      unsigned Timeout = 0,
 186                      unsigned MemoryLimit = 0) override;
 187
 188   /// OutputCode - Compile the specified program from bitcode to code
 189   /// understood by the GCC driver (either C or asm).  If the code generator
 190   /// fails, it sets Error, otherwise, this function returns the type of code
 191   /// emitted.
 192   GCC::FileType OutputCode(const std::string &Bitcode,
 193                            std::string &OutFile, std::string &Error,
 194                            unsigned Timeout = 0,
 195                            unsigned MemoryLimit = 0) override;
 196 };
 197
 198 } // End llvm namespace
 199
 200 #endif