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 143
