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      1 /*===-- llvm-c/Target.h - Target Lib C Iface --------------------*- 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 libLLVMTarget.a, which             */
     11 /* implements target information.                                             */
     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_TARGET_H
     20 #define LLVM_C_TARGET_H
     21 
     22 #include "llvm-c/Core.h"
     23 #include "llvm/Config/llvm-config.h"
     24 
     25 #if defined(_MSC_VER) && !defined(inline)
     26 #define inline __inline
     27 #endif
     28 
     29 #ifdef __cplusplus
     30 extern "C" {
     31 #endif
     32 
     33 /**
     34  * @defgroup LLVMCTarget Target information
     35  * @ingroup LLVMC
     36  *
     37  * @{
     38  */
     39 
     40 enum LLVMByteOrdering { LLVMBigEndian, LLVMLittleEndian };
     41 
     42 typedef struct LLVMOpaqueTargetData *LLVMTargetDataRef;
     43 typedef struct LLVMOpaqueTargetLibraryInfotData *LLVMTargetLibraryInfoRef;
     44 
     45 /* Declare all of the target-initialization functions that are available. */
     46 #define LLVM_TARGET(TargetName) \
     47   void LLVMInitialize##TargetName##TargetInfo(void);
     48 #include "llvm/Config/Targets.def"
     49 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
     50 
     51 #define LLVM_TARGET(TargetName) void LLVMInitialize##TargetName##Target(void);
     52 #include "llvm/Config/Targets.def"
     53 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
     54 
     55 #define LLVM_TARGET(TargetName) \
     56   void LLVMInitialize##TargetName##TargetMC(void);
     57 #include "llvm/Config/Targets.def"
     58 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
     59 
     60 /* Declare all of the available assembly printer initialization functions. */
     61 #define LLVM_ASM_PRINTER(TargetName) \
     62   void LLVMInitialize##TargetName##AsmPrinter(void);
     63 #include "llvm/Config/AsmPrinters.def"
     64 #undef LLVM_ASM_PRINTER  /* Explicit undef to make SWIG happier */
     65 
     66 /* Declare all of the available assembly parser initialization functions. */
     67 #define LLVM_ASM_PARSER(TargetName) \
     68   void LLVMInitialize##TargetName##AsmParser(void);
     69 #include "llvm/Config/AsmParsers.def"
     70 #undef LLVM_ASM_PARSER  /* Explicit undef to make SWIG happier */
     71 
     72 /* Declare all of the available disassembler initialization functions. */
     73 #define LLVM_DISASSEMBLER(TargetName) \
     74   void LLVMInitialize##TargetName##Disassembler(void);
     75 #include "llvm/Config/Disassemblers.def"
     76 #undef LLVM_DISASSEMBLER  /* Explicit undef to make SWIG happier */
     77 
     78 /** LLVMInitializeAllTargetInfos - The main program should call this function if
     79     it wants access to all available targets that LLVM is configured to
     80     support. */
     81 static inline void LLVMInitializeAllTargetInfos(void) {
     82 #define LLVM_TARGET(TargetName) LLVMInitialize##TargetName##TargetInfo();
     83 #include "llvm/Config/Targets.def"
     84 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
     85 }
     86 
     87 /** LLVMInitializeAllTargets - The main program should call this function if it
     88     wants to link in all available targets that LLVM is configured to
     89     support. */
     90 static inline void LLVMInitializeAllTargets(void) {
     91 #define LLVM_TARGET(TargetName) LLVMInitialize##TargetName##Target();
     92 #include "llvm/Config/Targets.def"
     93 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
     94 }
     95 
     96 /** LLVMInitializeAllTargetMCs - The main program should call this function if
     97     it wants access to all available target MC that LLVM is configured to
     98     support. */
     99 static inline void LLVMInitializeAllTargetMCs(void) {
    100 #define LLVM_TARGET(TargetName) LLVMInitialize##TargetName##TargetMC();
    101 #include "llvm/Config/Targets.def"
    102 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
    103 }
    104 
    105 /** LLVMInitializeAllAsmPrinters - The main program should call this function if
    106     it wants all asm printers that LLVM is configured to support, to make them
    107     available via the TargetRegistry. */
    108 static inline void LLVMInitializeAllAsmPrinters(void) {
    109 #define LLVM_ASM_PRINTER(TargetName) LLVMInitialize##TargetName##AsmPrinter();
    110 #include "llvm/Config/AsmPrinters.def"
    111 #undef LLVM_ASM_PRINTER  /* Explicit undef to make SWIG happier */
    112 }
    113 
    114 /** LLVMInitializeAllAsmParsers - The main program should call this function if
    115     it wants all asm parsers that LLVM is configured to support, to make them
    116     available via the TargetRegistry. */
    117 static inline void LLVMInitializeAllAsmParsers(void) {
    118 #define LLVM_ASM_PARSER(TargetName) LLVMInitialize##TargetName##AsmParser();
    119 #include "llvm/Config/AsmParsers.def"
    120 #undef LLVM_ASM_PARSER  /* Explicit undef to make SWIG happier */
    121 }
    122 
    123 /** LLVMInitializeAllDisassemblers - The main program should call this function
    124     if it wants all disassemblers that LLVM is configured to support, to make
    125     them available via the TargetRegistry. */
    126 static inline void LLVMInitializeAllDisassemblers(void) {
    127 #define LLVM_DISASSEMBLER(TargetName) \
    128   LLVMInitialize##TargetName##Disassembler();
    129 #include "llvm/Config/Disassemblers.def"
    130 #undef LLVM_DISASSEMBLER  /* Explicit undef to make SWIG happier */
    131 }
    132 
    133 /** LLVMInitializeNativeTarget - The main program should call this function to
    134     initialize the native target corresponding to the host.  This is useful
    135     for JIT applications to ensure that the target gets linked in correctly. */
    136 static inline LLVMBool LLVMInitializeNativeTarget(void) {
    137   /* If we have a native target, initialize it to ensure it is linked in. */
    138 #ifdef LLVM_NATIVE_TARGET
    139   LLVM_NATIVE_TARGETINFO();
    140   LLVM_NATIVE_TARGET();
    141   LLVM_NATIVE_TARGETMC();
    142   return 0;
    143 #else
    144   return 1;
    145 #endif
    146 }
    147 
    148 /** LLVMInitializeNativeTargetAsmParser - The main program should call this
    149     function to initialize the parser for the native target corresponding to the
    150     host. */
    151 static inline LLVMBool LLVMInitializeNativeAsmParser(void) {
    152 #ifdef LLVM_NATIVE_ASMPARSER
    153   LLVM_NATIVE_ASMPARSER();
    154   return 0;
    155 #else
    156   return 1;
    157 #endif
    158 }
    159 
    160 /** LLVMInitializeNativeTargetAsmPrinter - The main program should call this
    161     function to initialize the printer for the native target corresponding to
    162     the host. */
    163 static inline LLVMBool LLVMInitializeNativeAsmPrinter(void) {
    164 #ifdef LLVM_NATIVE_ASMPRINTER
    165   LLVM_NATIVE_ASMPRINTER();
    166   return 0;
    167 #else
    168   return 1;
    169 #endif
    170 }
    171 
    172 /** LLVMInitializeNativeTargetDisassembler - The main program should call this
    173     function to initialize the disassembler for the native target corresponding
    174     to the host. */
    175 static inline LLVMBool LLVMInitializeNativeDisassembler(void) {
    176 #ifdef LLVM_NATIVE_DISASSEMBLER
    177   LLVM_NATIVE_DISASSEMBLER();
    178   return 0;
    179 #else
    180   return 1;
    181 #endif
    182 }
    183 
    184 /*===-- Target Data -------------------------------------------------------===*/
    185 
    186 /** Creates target data from a target layout string.
    187     See the constructor llvm::DataLayout::DataLayout. */
    188 LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep);
    189 
    190 /** Adds target data information to a pass manager. This does not take ownership
    191     of the target data.
    192     See the method llvm::PassManagerBase::add. */
    193 void LLVMAddTargetData(LLVMTargetDataRef TD, LLVMPassManagerRef PM);
    194 
    195 /** Adds target library information to a pass manager. This does not take
    196     ownership of the target library info.
    197     See the method llvm::PassManagerBase::add. */
    198 void LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,
    199                               LLVMPassManagerRef PM);
    200 
    201 /** Converts target data to a target layout string. The string must be disposed
    202     with LLVMDisposeMessage.
    203     See the constructor llvm::DataLayout::DataLayout. */
    204 char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD);
    205 
    206 /** Returns the byte order of a target, either LLVMBigEndian or
    207     LLVMLittleEndian.
    208     See the method llvm::DataLayout::isLittleEndian. */
    209 enum LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD);
    210 
    211 /** Returns the pointer size in bytes for a target.
    212     See the method llvm::DataLayout::getPointerSize. */
    213 unsigned LLVMPointerSize(LLVMTargetDataRef TD);
    214 
    215 /** Returns the pointer size in bytes for a target for a specified
    216     address space.
    217     See the method llvm::DataLayout::getPointerSize. */
    218 unsigned LLVMPointerSizeForAS(LLVMTargetDataRef TD, unsigned AS);
    219 
    220 /** Returns the integer type that is the same size as a pointer on a target.
    221     See the method llvm::DataLayout::getIntPtrType. */
    222 LLVMTypeRef LLVMIntPtrType(LLVMTargetDataRef TD);
    223 
    224 /** Returns the integer type that is the same size as a pointer on a target.
    225     This version allows the address space to be specified.
    226     See the method llvm::DataLayout::getIntPtrType. */
    227 LLVMTypeRef LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS);
    228 
    229 /** Returns the integer type that is the same size as a pointer on a target.
    230     See the method llvm::DataLayout::getIntPtrType. */
    231 LLVMTypeRef LLVMIntPtrTypeInContext(LLVMContextRef C, LLVMTargetDataRef TD);
    232 
    233 /** Returns the integer type that is the same size as a pointer on a target.
    234     This version allows the address space to be specified.
    235     See the method llvm::DataLayout::getIntPtrType. */
    236 LLVMTypeRef LLVMIntPtrTypeForASInContext(LLVMContextRef C, LLVMTargetDataRef TD,
    237                                          unsigned AS);
    238 
    239 /** Computes the size of a type in bytes for a target.
    240     See the method llvm::DataLayout::getTypeSizeInBits. */
    241 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty);
    242 
    243 /** Computes the storage size of a type in bytes for a target.
    244     See the method llvm::DataLayout::getTypeStoreSize. */
    245 unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
    246 
    247 /** Computes the ABI size of a type in bytes for a target.
    248     See the method llvm::DataLayout::getTypeAllocSize. */
    249 unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
    250 
    251 /** Computes the ABI alignment of a type in bytes for a target.
    252     See the method llvm::DataLayout::getTypeABISize. */
    253 unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
    254 
    255 /** Computes the call frame alignment of a type in bytes for a target.
    256     See the method llvm::DataLayout::getTypeABISize. */
    257 unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
    258 
    259 /** Computes the preferred alignment of a type in bytes for a target.
    260     See the method llvm::DataLayout::getTypeABISize. */
    261 unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
    262 
    263 /** Computes the preferred alignment of a global variable in bytes for a target.
    264     See the method llvm::DataLayout::getPreferredAlignment. */
    265 unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
    266                                         LLVMValueRef GlobalVar);
    267 
    268 /** Computes the structure element that contains the byte offset for a target.
    269     See the method llvm::StructLayout::getElementContainingOffset. */
    270 unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
    271                              unsigned long long Offset);
    272 
    273 /** Computes the byte offset of the indexed struct element for a target.
    274     See the method llvm::StructLayout::getElementContainingOffset. */
    275 unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD,
    276                                        LLVMTypeRef StructTy, unsigned Element);
    277 
    278 /** Deallocates a TargetData.
    279     See the destructor llvm::DataLayout::~DataLayout. */
    280 void LLVMDisposeTargetData(LLVMTargetDataRef TD);
    281 
    282 /**
    283  * @}
    284  */
    285 
    286 #ifdef __cplusplus
    287 }
    288 #endif /* defined(__cplusplus) */
    289 
    290 #endif
    291