src/llvm/include/llvm-c/TargetMachine.h

   1 /*===-- llvm-c/TargetMachine.h - Target Machine Library C Interface - 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 header declares the C interface to the Target and TargetMachine       *|
  11 |* classes, which can be used to generate assembly or object files.           *|
  12 |*                                                                            *|
  13 |* Many exotic languages can interoperate with C code but have a harder time  *|
  14 |* with C++ due to name mangling. So in addition to C, this interface enables *|
  15 |* tools written in such languages.                                           *|
  16 |*                                                                            *|
  17 \*===----------------------------------------------------------------------===*/
  18
  19 #ifndef LLVM_C_TARGETMACHINE_H
  20 #define LLVM_C_TARGETMACHINE_H
  21
  22 #include "llvm-c/Core.h"
  23
  24 #ifdef __cplusplus
  25 extern "C" {
  26 #endif
  27 typedef struct LLVMTargetMachine *LLVMTargetMachineRef;
  28 typedef struct LLVMTarget *LLVMTargetRef;
  29
  30 typedef enum {
  31     LLVMCodeGenLevelNone,
  32     LLVMCodeGenLevelLess,
  33     LLVMCodeGenLevelDefault,
  34     LLVMCodeGenLevelAggressive
  35 } LLVMCodeGenOptLevel;
  36
  37 typedef enum {
  38     LLVMRelocDefault,
  39     LLVMRelocStatic,
  40     LLVMRelocPIC,
  41     LLVMRelocDynamicNoPic
  42 } LLVMRelocMode;
  43
  44 typedef enum {
  45     LLVMCodeModelDefault,
  46     LLVMCodeModelJITDefault,
  47     LLVMCodeModelSmall,
  48     LLVMCodeModelKernel,
  49     LLVMCodeModelMedium,
  50     LLVMCodeModelLarge
  51 } LLVMCodeModel;
  52
  53 typedef enum {
  54     LLVMAssemblyFile,
  55     LLVMObjectFile
  56 } LLVMCodeGenFileType;
  57
  58 /** Returns the first llvm::Target in the registered targets list. */
  59 LLVMTargetRef LLVMGetFirstTarget();
  60 /** Returns the next llvm::Target given a previous one (or null if there's none) */
  61 LLVMTargetRef LLVMGetNextTarget(LLVMTargetRef T);
  62
  63 /*===-- Target ------------------------------------------------------------===*/
  64 /** Returns the name of a target. See llvm::Target::getName */
  65 const char *LLVMGetTargetName(LLVMTargetRef T);
  66
  67 /** Returns the description  of a target. See llvm::Target::getDescription */
  68 const char *LLVMGetTargetDescription(LLVMTargetRef T);
  69
  70 /** Returns if the target has a JIT */
  71 LLVMBool LLVMTargetHasJIT(LLVMTargetRef T);
  72
  73 /** Returns if the target has a TargetMachine associated */
  74 LLVMBool LLVMTargetHasTargetMachine(LLVMTargetRef T);
  75
  76 /** Returns if the target as an ASM backend (required for emitting output) */
  77 LLVMBool LLVMTargetHasAsmBackend(LLVMTargetRef T);
  78
  79 /*===-- Target Machine ----------------------------------------------------===*/
  80 /** Creates a new llvm::TargetMachine. See llvm::Target::createTargetMachine */
  81 LLVMTargetMachineRef LLVMCreateTargetMachine(LLVMTargetRef T, char *Triple,
  82   char *CPU, char *Features, LLVMCodeGenOptLevel Level, LLVMRelocMode Reloc,
  83   LLVMCodeModel CodeModel);
  84
  85 /** Dispose the LLVMTargetMachineRef instance generated by
  86   LLVMCreateTargetMachine. */
  87 void LLVMDisposeTargetMachine(LLVMTargetMachineRef T);
  88
  89 /** Returns the Target used in a TargetMachine */
  90 LLVMTargetRef LLVMGetTargetMachineTarget(LLVMTargetMachineRef T);
  91
  92 /** Returns the triple used creating this target machine. See
  93   llvm::TargetMachine::getTriple. The result needs to be disposed with
  94   LLVMDisposeMessage. */
  95 char *LLVMGetTargetMachineTriple(LLVMTargetMachineRef T);
  96
  97 /** Returns the cpu used creating this target machine. See
  98   llvm::TargetMachine::getCPU. The result needs to be disposed with
  99   LLVMDisposeMessage. */
 100 char *LLVMGetTargetMachineCPU(LLVMTargetMachineRef T);
 101
 102 /** Returns the feature string used creating this target machine. See
 103   llvm::TargetMachine::getFeatureString. The result needs to be disposed with
 104   LLVMDisposeMessage. */
 105 char *LLVMGetTargetMachineFeatureString(LLVMTargetMachineRef T);
 106
 107 /** Returns the llvm::TargetData used for this llvm:TargetMachine. */
 108 LLVMTargetDataRef LLVMGetTargetMachineData(LLVMTargetMachineRef T);
 109
 110 /** Emits an asm or object file for the given module to the filename. This
 111   wraps several c++ only classes (among them a file stream). Returns any
 112   error in ErrorMessage. Use LLVMDisposeMessage to dispose the message. */
 113 LLVMBool LLVMTargetMachineEmitToFile(LLVMTargetMachineRef T, LLVMModuleRef M,
 114   char *Filename, LLVMCodeGenFileType codegen, char **ErrorMessage);
 115
 116
 117
 118
 119 #ifdef __cplusplus
 120 }
 121
 122 namespace llvm {
 123   class TargetMachine;
 124   class Target;
 125
 126   inline TargetMachine *unwrap(LLVMTargetMachineRef P) {
 127     return reinterpret_cast<TargetMachine*>(P);
 128   }
 129   inline Target *unwrap(LLVMTargetRef P) {
 130     return reinterpret_cast<Target*>(P);
 131   }
 132   inline LLVMTargetMachineRef wrap(const TargetMachine *P) {
 133     return reinterpret_cast<LLVMTargetMachineRef>(
 134       const_cast<TargetMachine*>(P));
 135   }
 136   inline LLVMTargetRef wrap(const Target * P) {
 137     return reinterpret_cast<LLVMTargetRef>(const_cast<Target*>(P));
 138   }
 139 }
 140 #endif
 141
 142 #endif