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MC/Mach-O: On second thought, use a custom hook for enabling aggressive
[android-x86/external-llvm.git] / include / llvm / MC / MCMachObjectWriter.h
1 //===-- llvm/MC/MCMachObjectWriter.h - Mach Object Writer -------*- 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 #ifndef LLVM_MC_MCMACHOBJECTWRITER_H
11 #define LLVM_MC_MCMACHOBJECTWRITER_H
12
13 #include "llvm/MC/MCObjectWriter.h"
14 #include "llvm/Support/DataTypes.h"
15
16 namespace llvm {
17
18 class MCMachObjectTargetWriter {
19   const unsigned Is64Bit : 1;
20   const uint32_t CPUType;
21   const uint32_t CPUSubtype;
22   // FIXME: Remove this, we should just always use it once we no longer care
23   // about Darwin 'as' compatibility.
24   const unsigned UseAggressiveSymbolFolding : 1;
25
26 protected:
27   MCMachObjectTargetWriter(bool Is64Bit_, uint32_t CPUType_,
28                            uint32_t CPUSubtype_,
29                            bool UseAggressiveSymbolFolding_ = false);
30
31 public:
32   virtual ~MCMachObjectTargetWriter();
33
34   /// @name Accessors
35   /// @{
36
37   bool is64Bit() const { return Is64Bit; }
38   bool useAggressiveSymbolFolding() const { return UseAggressiveSymbolFolding; }
39   uint32_t getCPUType() const { return CPUType; }
40   uint32_t getCPUSubtype() const { return CPUSubtype; }
41
42   /// @}
43 };
44
45 /// \brief Construct a new Mach-O writer instance.
46 ///
47 /// This routine takes ownership of the target writer subclass.
48 ///
49 /// \param MOTW - The target specific Mach-O writer subclass.
50 /// \param OS - The stream to write to.
51 /// \returns The constructed object writer.
52 MCObjectWriter *createMachObjectWriter(MCMachObjectTargetWriter *MOTW,
53                                        raw_ostream &OS, bool IsLittleEndian);
54
55 } // End llvm namespace
56
57 #endif