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      1 //===- MCTargetOptions.h - MC Target Options --------------------*- C++ -*-===//
      2 //
      3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
      4 // See https://llvm.org/LICENSE.txt for license information.
      5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
      6 //
      7 //===----------------------------------------------------------------------===//
      8 
      9 #ifndef LLVM_MC_MCTARGETOPTIONS_H
     10 #define LLVM_MC_MCTARGETOPTIONS_H
     11 
     12 #include "llvm/ADT/ArrayRef.h"
     13 #include <string>
     14 #include <vector>
     15 
     16 namespace llvm {
     17 
     18 enum class ExceptionHandling {
     19   None,     ///< No exception support
     20   DwarfCFI, ///< DWARF-like instruction based exceptions
     21   SjLj,     ///< setjmp/longjmp based exceptions
     22   ARM,      ///< ARM EHABI
     23   WinEH,    ///< Windows Exception Handling
     24   Wasm,     ///< WebAssembly Exception Handling
     25   AIX,      ///< AIX Exception Handling
     26 };
     27 
     28 enum class DebugCompressionType {
     29   None, ///< No compression
     30   GNU,  ///< zlib-gnu style compression
     31   Z,    ///< zlib style complession
     32 };
     33 
     34 class StringRef;
     35 
     36 class MCTargetOptions {
     37 public:
     38   enum AsmInstrumentation {
     39     AsmInstrumentationNone,
     40     AsmInstrumentationAddress
     41   };
     42 
     43   bool MCRelaxAll : 1;
     44   bool MCNoExecStack : 1;
     45   bool MCFatalWarnings : 1;
     46   bool MCNoWarn : 1;
     47   bool MCNoDeprecatedWarn : 1;
     48   bool MCSaveTempLabels : 1;
     49   bool MCUseDwarfDirectory : 1;
     50   bool MCIncrementalLinkerCompatible : 1;
     51   bool ShowMCEncoding : 1;
     52   bool ShowMCInst : 1;
     53   bool AsmVerbose : 1;
     54 
     55   /// Preserve Comments in Assembly.
     56   bool PreserveAsmComments : 1;
     57 
     58   bool Dwarf64 : 1;
     59   int DwarfVersion = 0;
     60 
     61   std::string ABIName;
     62   std::string AssemblyLanguage;
     63   std::string SplitDwarfFile;
     64 
     65   const char *Argv0 = nullptr;
     66   ArrayRef<const char *> CommandLineArgs;
     67 
     68   /// Additional paths to search for `.include` directives when using the
     69   /// integrated assembler.
     70   std::vector<std::string> IASSearchPaths;
     71 
     72   MCTargetOptions();
     73 
     74   /// getABIName - If this returns a non-empty string this represents the
     75   /// textual name of the ABI that we want the backend to use, e.g. o32, or
     76   /// aapcs-linux.
     77   StringRef getABIName() const;
     78 
     79   /// getAssemblyLanguage - If this returns a non-empty string this represents
     80   /// the textual name of the assembly language that we will use for this
     81   /// target, e.g. masm.
     82   StringRef getAssemblyLanguage() const;
     83 };
     84 
     85 } // end namespace llvm
     86 
     87 #endif // LLVM_MC_MCTARGETOPTIONS_H
     88