include/llvm-c/Target.h

   1 /*===-- llvm-c/Target.h - Target Lib C Iface --------------------*- C++ -*-===*/
   2 /*                                                                            */
   3 /* Part of the LLVM Project, under the Apache License v2.0 with LLVM          */
   4 /* Exceptions.                                                                */
   5 /* See https://llvm.org/LICENSE.txt for license information.                  */
   6 /* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception                    */
   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/Types.h"
  23 #include "llvm/Config/llvm-config.h"
  24
  25 #ifdef __cplusplus
  26 extern "C" {
  27 #endif
  28
  29 /**
  30  * @defgroup LLVMCTarget Target information
  31  * @ingroup LLVMC
  32  *
  33  * @{
  34  */
  35
  36 enum LLVMByteOrdering { LLVMBigEndian, LLVMLittleEndian };
  37
  38 typedef struct LLVMOpaqueTargetData *LLVMTargetDataRef;
  39 typedef struct LLVMOpaqueTargetLibraryInfotData *LLVMTargetLibraryInfoRef;
  40
  41 /* Declare all of the target-initialization functions that are available. */
  42 #define LLVM_TARGET(TargetName) \
  43   void LLVMInitialize##TargetName##TargetInfo(void);
  44 #include "llvm/Config/Targets.def"
  45 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
  46
  47 #define LLVM_TARGET(TargetName) void LLVMInitialize##TargetName##Target(void);
  48 #include "llvm/Config/Targets.def"
  49 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
  50
  51 #define LLVM_TARGET(TargetName) \
  52   void LLVMInitialize##TargetName##TargetMC(void);
  53 #include "llvm/Config/Targets.def"
  54 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
  55
  56 /* Declare all of the available assembly printer initialization functions. */
  57 #define LLVM_ASM_PRINTER(TargetName) \
  58   void LLVMInitialize##TargetName##AsmPrinter(void);
  59 #include "llvm/Config/AsmPrinters.def"
  60 #undef LLVM_ASM_PRINTER  /* Explicit undef to make SWIG happier */
  61
  62 /* Declare all of the available assembly parser initialization functions. */
  63 #define LLVM_ASM_PARSER(TargetName) \
  64   void LLVMInitialize##TargetName##AsmParser(void);
  65 #include "llvm/Config/AsmParsers.def"
  66 #undef LLVM_ASM_PARSER  /* Explicit undef to make SWIG happier */
  67
  68 /* Declare all of the available disassembler initialization functions. */
  69 #define LLVM_DISASSEMBLER(TargetName) \
  70   void LLVMInitialize##TargetName##Disassembler(void);
  71 #include "llvm/Config/Disassemblers.def"
  72 #undef LLVM_DISASSEMBLER  /* Explicit undef to make SWIG happier */
  73
  74 /** LLVMInitializeAllTargetInfos - The main program should call this function if
  75     it wants access to all available targets that LLVM is configured to
  76     support. */
  77 static inline void LLVMInitializeAllTargetInfos(void) {
  78 #define LLVM_TARGET(TargetName) LLVMInitialize##TargetName##TargetInfo();
  79 #include "llvm/Config/Targets.def"
  80 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
  81 }
  82
  83 /** LLVMInitializeAllTargets - The main program should call this function if it
  84     wants to link in all available targets that LLVM is configured to
  85     support. */
  86 static inline void LLVMInitializeAllTargets(void) {
  87 #define LLVM_TARGET(TargetName) LLVMInitialize##TargetName##Target();
  88 #include "llvm/Config/Targets.def"
  89 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
  90 }
  91
  92 /** LLVMInitializeAllTargetMCs - The main program should call this function if
  93     it wants access to all available target MC that LLVM is configured to
  94     support. */
  95 static inline void LLVMInitializeAllTargetMCs(void) {
  96 #define LLVM_TARGET(TargetName) LLVMInitialize##TargetName##TargetMC();
  97 #include "llvm/Config/Targets.def"
  98 #undef LLVM_TARGET  /* Explicit undef to make SWIG happier */
  99 }
 100
 101 /** LLVMInitializeAllAsmPrinters - The main program should call this function if
 102     it wants all asm printers that LLVM is configured to support, to make them
 103     available via the TargetRegistry. */
 104 static inline void LLVMInitializeAllAsmPrinters(void) {
 105 #define LLVM_ASM_PRINTER(TargetName) LLVMInitialize##TargetName##AsmPrinter();
 106 #include "llvm/Config/AsmPrinters.def"
 107 #undef LLVM_ASM_PRINTER  /* Explicit undef to make SWIG happier */
 108 }
 109
 110 /** LLVMInitializeAllAsmParsers - The main program should call this function if
 111     it wants all asm parsers that LLVM is configured to support, to make them
 112     available via the TargetRegistry. */
 113 static inline void LLVMInitializeAllAsmParsers(void) {
 114 #define LLVM_ASM_PARSER(TargetName) LLVMInitialize##TargetName##AsmParser();
 115 #include "llvm/Config/AsmParsers.def"
 116 #undef LLVM_ASM_PARSER  /* Explicit undef to make SWIG happier */
 117 }
 118
 119 /** LLVMInitializeAllDisassemblers - The main program should call this function
 120     if it wants all disassemblers that LLVM is configured to support, to make
 121     them available via the TargetRegistry. */
 122 static inline void LLVMInitializeAllDisassemblers(void) {
 123 #define LLVM_DISASSEMBLER(TargetName) \
 124   LLVMInitialize##TargetName##Disassembler();
 125 #include "llvm/Config/Disassemblers.def"
 126 #undef LLVM_DISASSEMBLER  /* Explicit undef to make SWIG happier */
 127 }
 128
 129 /** LLVMInitializeNativeTarget - The main program should call this function to
 130     initialize the native target corresponding to the host.  This is useful
 131     for JIT applications to ensure that the target gets linked in correctly. */
 132 static inline LLVMBool LLVMInitializeNativeTarget(void) {
 133   /* If we have a native target, initialize it to ensure it is linked in. */
 134 #ifdef LLVM_NATIVE_TARGET
 135   LLVM_NATIVE_TARGETINFO();
 136   LLVM_NATIVE_TARGET();
 137   LLVM_NATIVE_TARGETMC();
 138   return 0;
 139 #else
 140   return 1;
 141 #endif
 142 }
 143
 144 /** LLVMInitializeNativeTargetAsmParser - The main program should call this
 145     function to initialize the parser for the native target corresponding to the
 146     host. */
 147 static inline LLVMBool LLVMInitializeNativeAsmParser(void) {
 148 #ifdef LLVM_NATIVE_ASMPARSER
 149   LLVM_NATIVE_ASMPARSER();
 150   return 0;
 151 #else
 152   return 1;
 153 #endif
 154 }
 155
 156 /** LLVMInitializeNativeTargetAsmPrinter - The main program should call this
 157     function to initialize the printer for the native target corresponding to
 158     the host. */
 159 static inline LLVMBool LLVMInitializeNativeAsmPrinter(void) {
 160 #ifdef LLVM_NATIVE_ASMPRINTER
 161   LLVM_NATIVE_ASMPRINTER();
 162   return 0;
 163 #else
 164   return 1;
 165 #endif
 166 }
 167
 168 /** LLVMInitializeNativeTargetDisassembler - The main program should call this
 169     function to initialize the disassembler for the native target corresponding
 170     to the host. */
 171 static inline LLVMBool LLVMInitializeNativeDisassembler(void) {
 172 #ifdef LLVM_NATIVE_DISASSEMBLER
 173   LLVM_NATIVE_DISASSEMBLER();
 174   return 0;
 175 #else
 176   return 1;
 177 #endif
 178 }
 179
 180 /*===-- Target Data -------------------------------------------------------===*/
 181
 182 /**
 183  * Obtain the data layout for a module.
 184  *
 185  * @see Module::getDataLayout()
 186  */
 187 LLVMTargetDataRef LLVMGetModuleDataLayout(LLVMModuleRef M);
 188
 189 /**
 190  * Set the data layout for a module.
 191  *
 192  * @see Module::setDataLayout()
 193  */
 194 void LLVMSetModuleDataLayout(LLVMModuleRef M, LLVMTargetDataRef DL);
 195
 196 /** Creates target data from a target layout string.
 197     See the constructor llvm::DataLayout::DataLayout. */
 198 LLVMTargetDataRef LLVMCreateTargetData(const char *StringRep);
 199
 200 /** Deallocates a TargetData.
 201     See the destructor llvm::DataLayout::~DataLayout. */
 202 void LLVMDisposeTargetData(LLVMTargetDataRef TD);
 203
 204 /** Adds target library information to a pass manager. This does not take
 205     ownership of the target library info.
 206     See the method llvm::PassManagerBase::add. */
 207 void LLVMAddTargetLibraryInfo(LLVMTargetLibraryInfoRef TLI,
 208                               LLVMPassManagerRef PM);
 209
 210 /** Converts target data to a target layout string. The string must be disposed
 211     with LLVMDisposeMessage.
 212     See the constructor llvm::DataLayout::DataLayout. */
 213 char *LLVMCopyStringRepOfTargetData(LLVMTargetDataRef TD);
 214
 215 /** Returns the byte order of a target, either LLVMBigEndian or
 216     LLVMLittleEndian.
 217     See the method llvm::DataLayout::isLittleEndian. */
 218 enum LLVMByteOrdering LLVMByteOrder(LLVMTargetDataRef TD);
 219
 220 /** Returns the pointer size in bytes for a target.
 221     See the method llvm::DataLayout::getPointerSize. */
 222 unsigned LLVMPointerSize(LLVMTargetDataRef TD);
 223
 224 /** Returns the pointer size in bytes for a target for a specified
 225     address space.
 226     See the method llvm::DataLayout::getPointerSize. */
 227 unsigned LLVMPointerSizeForAS(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 LLVMIntPtrType(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 LLVMIntPtrTypeForAS(LLVMTargetDataRef TD, unsigned AS);
 237
 238 /** Returns the integer type that is the same size as a pointer on a target.
 239     See the method llvm::DataLayout::getIntPtrType. */
 240 LLVMTypeRef LLVMIntPtrTypeInContext(LLVMContextRef C, LLVMTargetDataRef TD);
 241
 242 /** Returns the integer type that is the same size as a pointer on a target.
 243     This version allows the address space to be specified.
 244     See the method llvm::DataLayout::getIntPtrType. */
 245 LLVMTypeRef LLVMIntPtrTypeForASInContext(LLVMContextRef C, LLVMTargetDataRef TD,
 246                                          unsigned AS);
 247
 248 /** Computes the size of a type in bytes for a target.
 249     See the method llvm::DataLayout::getTypeSizeInBits. */
 250 unsigned long long LLVMSizeOfTypeInBits(LLVMTargetDataRef TD, LLVMTypeRef Ty);
 251
 252 /** Computes the storage size of a type in bytes for a target.
 253     See the method llvm::DataLayout::getTypeStoreSize. */
 254 unsigned long long LLVMStoreSizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
 255
 256 /** Computes the ABI size of a type in bytes for a target.
 257     See the method llvm::DataLayout::getTypeAllocSize. */
 258 unsigned long long LLVMABISizeOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
 259
 260 /** Computes the ABI alignment of a type in bytes for a target.
 261     See the method llvm::DataLayout::getTypeABISize. */
 262 unsigned LLVMABIAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
 263
 264 /** Computes the call frame alignment of a type in bytes for a target.
 265     See the method llvm::DataLayout::getTypeABISize. */
 266 unsigned LLVMCallFrameAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
 267
 268 /** Computes the preferred alignment of a type in bytes for a target.
 269     See the method llvm::DataLayout::getTypeABISize. */
 270 unsigned LLVMPreferredAlignmentOfType(LLVMTargetDataRef TD, LLVMTypeRef Ty);
 271
 272 /** Computes the preferred alignment of a global variable in bytes for a target.
 273     See the method llvm::DataLayout::getPreferredAlignment. */
 274 unsigned LLVMPreferredAlignmentOfGlobal(LLVMTargetDataRef TD,
 275                                         LLVMValueRef GlobalVar);
 276
 277 /** Computes the structure element that contains the byte offset for a target.
 278     See the method llvm::StructLayout::getElementContainingOffset. */
 279 unsigned LLVMElementAtOffset(LLVMTargetDataRef TD, LLVMTypeRef StructTy,
 280                              unsigned long long Offset);
 281
 282 /** Computes the byte offset of the indexed struct element for a target.
 283     See the method llvm::StructLayout::getElementContainingOffset. */
 284 unsigned long long LLVMOffsetOfElement(LLVMTargetDataRef TD,
 285                                        LLVMTypeRef StructTy, unsigned Element);
 286
 287 /**
 288  * @}
 289  */
 290
 291 #ifdef __cplusplus
 292 }
 293 #endif /* defined(__cplusplus) */
 294
 295 #endif