201 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			201 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			C++
		
	
	
	
//===-- tools/bugpoint/ToolRunner.h -----------------------------*- C++ -*-===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file exposes an abstraction around a platform C compiler, used to
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// compile C and assembly code.  It also exposes an "AbstractIntepreter"
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// interface, which is used to execute code using one of the LLVM execution
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// engines.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_BUGPOINT_TOOLRUNNER_H
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#define LLVM_TOOLS_BUGPOINT_TOOLRUNNER_H
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#include "llvm/ADT/Triple.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/SystemUtils.h"
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#include <exception>
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#include <vector>
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namespace llvm {
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extern cl::opt<bool> SaveTemps;
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extern Triple TargetTriple;
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class LLC;
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//===---------------------------------------------------------------------===//
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// CC abstraction
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//
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class CC {
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  std::string CCPath;                // The path to the cc executable.
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  std::string RemoteClientPath;       // The path to the rsh / ssh executable.
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  std::vector<std::string> ccArgs; // CC-specific arguments.
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  CC(StringRef ccPath, StringRef RemotePath,
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      const std::vector<std::string> *CCArgs)
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    : CCPath(ccPath), RemoteClientPath(RemotePath) {
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    if (CCArgs) ccArgs = *CCArgs;
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  }
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public:
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  enum FileType { AsmFile, ObjectFile, CFile };
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  static CC *create(std::string &Message,
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                     const std::string &CCBinary,
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                     const std::vector<std::string> *Args);
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  /// ExecuteProgram - Execute the program specified by "ProgramFile" (which is
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  /// either a .s file, or a .c file, specified by FileType), with the specified
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  /// arguments.  Standard input is specified with InputFile, and standard
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  /// Output is captured to the specified OutputFile location.  The SharedLibs
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  /// option specifies optional native shared objects that can be loaded into
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  /// the program for execution.
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  ///
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  int ExecuteProgram(const std::string &ProgramFile,
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                     const std::vector<std::string> &Args,
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                     FileType fileType,
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                     const std::string &InputFile,
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                     const std::string &OutputFile,
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                     std::string *Error = nullptr,
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                     const std::vector<std::string> &CCArgs =
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                         std::vector<std::string>(),
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                     unsigned Timeout = 0,
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                     unsigned MemoryLimit = 0);
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  /// MakeSharedObject - This compiles the specified file (which is either a .c
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  /// file or a .s file) into a shared object.
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  ///
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  int MakeSharedObject(const std::string &InputFile, FileType fileType,
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                       std::string &OutputFile,
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                       const std::vector<std::string> &ArgsForCC,
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                       std::string &Error);
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};
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//===---------------------------------------------------------------------===//
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/// AbstractInterpreter Class - Subclasses of this class are used to execute
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/// LLVM bitcode in a variety of ways.  This abstract interface hides this
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/// complexity behind a simple interface.
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///
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class AbstractInterpreter {
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  virtual void anchor();
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public:
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  static LLC *createLLC(const char *Argv0, std::string &Message,
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                        const std::string              &CCBinary,
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                        const std::vector<std::string> *Args = nullptr,
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                        const std::vector<std::string> *CCArgs = nullptr,
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                        bool UseIntegratedAssembler = false);
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  static AbstractInterpreter*
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  createLLI(const char *Argv0, std::string &Message,
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            const std::vector<std::string> *Args = nullptr);
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  static AbstractInterpreter*
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  createJIT(const char *Argv0, std::string &Message,
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            const std::vector<std::string> *Args = nullptr);
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  static AbstractInterpreter*
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  createCustomCompiler(std::string &Message,
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                       const std::string &CompileCommandLine);
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  static AbstractInterpreter*
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  createCustomExecutor(std::string &Message,
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                       const std::string &ExecCommandLine);
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  virtual ~AbstractInterpreter() {}
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  /// compileProgram - Compile the specified program from bitcode to executable
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  /// code.  This does not produce any output, it is only used when debugging
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  /// the code generator.  It returns false if the code generator fails.
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  virtual void compileProgram(const std::string &Bitcode, std::string *Error,
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                              unsigned Timeout = 0, unsigned MemoryLimit = 0) {}
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  /// OutputCode - Compile the specified program from bitcode to code
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  /// understood by the CC driver (either C or asm).  If the code generator
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  /// fails, it sets Error, otherwise, this function returns the type of code
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  /// emitted.
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  virtual CC::FileType OutputCode(const std::string &Bitcode,
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                                   std::string &OutFile, std::string &Error,
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                                   unsigned Timeout = 0,
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                                   unsigned MemoryLimit = 0) {
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    Error = "OutputCode not supported by this AbstractInterpreter!";
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    return CC::AsmFile;
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  }
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  /// ExecuteProgram - Run the specified bitcode file, emitting output to the
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  /// specified filename.  This sets RetVal to the exit code of the program or
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  /// returns false if a problem was encountered that prevented execution of
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  /// the program.
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  ///
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  virtual int ExecuteProgram(const std::string &Bitcode,
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                             const std::vector<std::string> &Args,
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                             const std::string &InputFile,
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                             const std::string &OutputFile,
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                             std::string *Error,
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                             const std::vector<std::string> &CCArgs =
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                               std::vector<std::string>(),
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                             const std::vector<std::string> &SharedLibs =
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                               std::vector<std::string>(),
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                             unsigned Timeout = 0,
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                             unsigned MemoryLimit = 0) = 0;
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};
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//===---------------------------------------------------------------------===//
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// LLC Implementation of AbstractIntepreter interface
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//
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class LLC : public AbstractInterpreter {
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  std::string LLCPath;               // The path to the LLC executable.
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  std::vector<std::string> ToolArgs; // Extra args to pass to LLC.
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  CC *cc;
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  bool UseIntegratedAssembler;
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public:
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  LLC(const std::string &llcPath, CC *cc,
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      const std::vector<std::string> *Args,
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      bool useIntegratedAssembler)
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    : LLCPath(llcPath), cc(cc),
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      UseIntegratedAssembler(useIntegratedAssembler) {
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    ToolArgs.clear();
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    if (Args) ToolArgs = *Args;
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  }
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  ~LLC() override { delete cc; }
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  /// compileProgram - Compile the specified program from bitcode to executable
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  /// code.  This does not produce any output, it is only used when debugging
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  /// the code generator.  Returns false if the code generator fails.
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  void compileProgram(const std::string &Bitcode, std::string *Error,
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                      unsigned Timeout = 0, unsigned MemoryLimit = 0) override;
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  int ExecuteProgram(const std::string &Bitcode,
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                     const std::vector<std::string> &Args,
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                     const std::string &InputFile,
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                     const std::string &OutputFile,
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                     std::string *Error,
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                     const std::vector<std::string> &CCArgs =
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                       std::vector<std::string>(),
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                     const std::vector<std::string> &SharedLibs =
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                        std::vector<std::string>(),
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                     unsigned Timeout = 0,
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                     unsigned MemoryLimit = 0) override;
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  /// OutputCode - Compile the specified program from bitcode to code
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  /// understood by the CC driver (either C or asm).  If the code generator
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  /// fails, it sets Error, otherwise, this function returns the type of code
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  /// emitted.
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  CC::FileType OutputCode(const std::string &Bitcode,
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                           std::string &OutFile, std::string &Error,
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                           unsigned Timeout = 0,
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                           unsigned MemoryLimit = 0) override;
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};
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} // End llvm namespace
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#endif
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