1 //===--- ToolChains.h - ToolChain Implementations ---------------*- 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 CLANG_LIB_DRIVER_TOOLCHAINS_H_ 11 #define CLANG_LIB_DRIVER_TOOLCHAINS_H_ 12 13 #include "clang/Driver/Action.h" 14 #include "clang/Driver/ToolChain.h" 15 16 #include "llvm/ADT/DenseMap.h" 17 #include "llvm/Support/Compiler.h" 18 19 #include "Tools.h" 20 21 namespace clang { 22 namespace driver { 23 namespace toolchains { 24 25 /// Generic_GCC - A tool chain using the 'gcc' command to perform 26 /// all subcommands; this relies on gcc translating the majority of 27 /// command line options. 28 class LLVM_LIBRARY_VISIBILITY Generic_GCC : public ToolChain { 29 protected: 30 mutable llvm::DenseMap<unsigned, Tool*> Tools; 31 32 public: 33 Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple); 34 ~Generic_GCC(); 35 36 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 37 const ActionList &Inputs) const; 38 39 virtual bool IsUnwindTablesDefault() const; 40 virtual const char *GetDefaultRelocationModel() const; 41 virtual const char *GetForcedPicModel() const; 42 }; 43 44 /// Darwin - The base Darwin tool chain. 45 class LLVM_LIBRARY_VISIBILITY Darwin : public ToolChain { 46 public: 47 /// The host version. 48 unsigned DarwinVersion[3]; 49 50 private: 51 mutable llvm::DenseMap<unsigned, Tool*> Tools; 52 53 /// Whether the information on the target has been initialized. 54 // 55 // FIXME: This should be eliminated. What we want to do is make this part of 56 // the "default target for arguments" selection process, once we get out of 57 // the argument translation business. 58 mutable bool TargetInitialized; 59 60 // FIXME: Remove this once there is a proper way to detect an ARC runtime 61 // for the simulator. 62 public: 63 mutable enum { 64 ARCSimulator_None, 65 ARCSimulator_HasARCRuntime, 66 ARCSimulator_NoARCRuntime 67 } ARCRuntimeForSimulator; 68 69 private: 70 /// Whether we are targeting iPhoneOS target. 71 mutable bool TargetIsIPhoneOS; 72 73 /// Whether we are targeting the iPhoneOS simulator target. 74 mutable bool TargetIsIPhoneOSSimulator; 75 76 /// The OS version we are targeting. 77 mutable unsigned TargetVersion[3]; 78 79 /// The default macosx-version-min of this tool chain; empty until 80 /// initialized. 81 std::string MacosxVersionMin; 82 83 bool hasARCRuntime() const; 84 85 private: 86 void AddDeploymentTarget(DerivedArgList &Args) const; 87 88 public: 89 Darwin(const HostInfo &Host, const llvm::Triple& Triple); 90 ~Darwin(); 91 92 std::string ComputeEffectiveClangTriple(const ArgList &Args) const; 93 94 /// @name Darwin Specific Toolchain API 95 /// { 96 97 // FIXME: Eliminate these ...Target functions and derive separate tool chains 98 // for these targets and put version in constructor. 99 void setTarget(bool IsIPhoneOS, unsigned Major, unsigned Minor, 100 unsigned Micro, bool IsIOSSim) const { 101 assert((!IsIOSSim || IsIPhoneOS) && "Unexpected deployment target!"); 102 103 // FIXME: For now, allow reinitialization as long as values don't 104 // change. This will go away when we move away from argument translation. 105 if (TargetInitialized && TargetIsIPhoneOS == IsIPhoneOS && 106 TargetIsIPhoneOSSimulator == IsIOSSim && 107 TargetVersion[0] == Major && TargetVersion[1] == Minor && 108 TargetVersion[2] == Micro) 109 return; 110 111 assert(!TargetInitialized && "Target already initialized!"); 112 TargetInitialized = true; 113 TargetIsIPhoneOS = IsIPhoneOS; 114 TargetIsIPhoneOSSimulator = IsIOSSim; 115 TargetVersion[0] = Major; 116 TargetVersion[1] = Minor; 117 TargetVersion[2] = Micro; 118 } 119 120 bool isTargetIPhoneOS() const { 121 assert(TargetInitialized && "Target not initialized!"); 122 return TargetIsIPhoneOS; 123 } 124 125 bool isTargetIOSSimulator() const { 126 assert(TargetInitialized && "Target not initialized!"); 127 return TargetIsIPhoneOSSimulator; 128 } 129 130 bool isTargetInitialized() const { return TargetInitialized; } 131 132 void getTargetVersion(unsigned (&Res)[3]) const { 133 assert(TargetInitialized && "Target not initialized!"); 134 Res[0] = TargetVersion[0]; 135 Res[1] = TargetVersion[1]; 136 Res[2] = TargetVersion[2]; 137 } 138 139 /// getDarwinArchName - Get the "Darwin" arch name for a particular compiler 140 /// invocation. For example, Darwin treats different ARM variations as 141 /// distinct architectures. 142 llvm::StringRef getDarwinArchName(const ArgList &Args) const; 143 144 static bool isVersionLT(unsigned (&A)[3], unsigned (&B)[3]) { 145 for (unsigned i=0; i < 3; ++i) { 146 if (A[i] > B[i]) return false; 147 if (A[i] < B[i]) return true; 148 } 149 return false; 150 } 151 152 bool isIPhoneOSVersionLT(unsigned V0, unsigned V1=0, unsigned V2=0) const { 153 assert(isTargetIPhoneOS() && "Unexpected call for OS X target!"); 154 unsigned B[3] = { V0, V1, V2 }; 155 return isVersionLT(TargetVersion, B); 156 } 157 158 bool isMacosxVersionLT(unsigned V0, unsigned V1=0, unsigned V2=0) const { 159 assert(!isTargetIPhoneOS() && "Unexpected call for iPhoneOS target!"); 160 unsigned B[3] = { V0, V1, V2 }; 161 return isVersionLT(TargetVersion, B); 162 } 163 164 /// AddLinkSearchPathArgs - Add the linker search paths to \arg CmdArgs. 165 /// 166 /// \param Args - The input argument list. 167 /// \param CmdArgs [out] - The command argument list to append the paths 168 /// (prefixed by -L) to. 169 virtual void AddLinkSearchPathArgs(const ArgList &Args, 170 ArgStringList &CmdArgs) const = 0; 171 172 /// AddLinkARCArgs - Add the linker arguments to link the ARC runtime library. 173 virtual void AddLinkARCArgs(const ArgList &Args, 174 ArgStringList &CmdArgs) const = 0; 175 176 /// AddLinkRuntimeLibArgs - Add the linker arguments to link the compiler 177 /// runtime library. 178 virtual void AddLinkRuntimeLibArgs(const ArgList &Args, 179 ArgStringList &CmdArgs) const = 0; 180 181 /// } 182 /// @name ToolChain Implementation 183 /// { 184 185 virtual types::ID LookupTypeForExtension(const char *Ext) const; 186 187 virtual bool HasNativeLLVMSupport() const; 188 189 virtual void configureObjCRuntime(ObjCRuntime &runtime) const; 190 191 virtual DerivedArgList *TranslateArgs(const DerivedArgList &Args, 192 const char *BoundArch) const; 193 194 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 195 const ActionList &Inputs) const; 196 197 virtual bool IsBlocksDefault() const { 198 // Always allow blocks on Darwin; users interested in versioning are 199 // expected to use /usr/include/Blocks.h. 200 return true; 201 } 202 virtual bool IsIntegratedAssemblerDefault() const { 203 #ifdef DISABLE_DEFAULT_INTEGRATED_ASSEMBLER 204 return false; 205 #else 206 // Default integrated assembler to on for x86. 207 return (getTriple().getArch() == llvm::Triple::x86 || 208 getTriple().getArch() == llvm::Triple::x86_64); 209 #endif 210 } 211 virtual bool IsStrictAliasingDefault() const { 212 #ifdef DISABLE_DEFAULT_STRICT_ALIASING 213 return false; 214 #else 215 return ToolChain::IsStrictAliasingDefault(); 216 #endif 217 } 218 219 virtual bool IsObjCDefaultSynthPropertiesDefault() const { 220 return false; 221 } 222 223 virtual bool IsObjCNonFragileABIDefault() const { 224 // Non-fragile ABI is default for everything but i386. 225 return getTriple().getArch() != llvm::Triple::x86; 226 } 227 virtual bool IsObjCLegacyDispatchDefault() const { 228 // This is only used with the non-fragile ABI. 229 230 // Legacy dispatch is used everywhere except on x86_64. 231 return getTriple().getArch() != llvm::Triple::x86_64; 232 } 233 virtual bool UseObjCMixedDispatch() const { 234 // This is only used with the non-fragile ABI and non-legacy dispatch. 235 236 // Mixed dispatch is used everywhere except OS X before 10.6. 237 return !(!isTargetIPhoneOS() && isMacosxVersionLT(10, 6)); 238 } 239 virtual bool IsUnwindTablesDefault() const; 240 virtual unsigned GetDefaultStackProtectorLevel() const { 241 // Stack protectors default to on for 10.6 and beyond. 242 return !isTargetIPhoneOS() && !isMacosxVersionLT(10, 6); 243 } 244 virtual const char *GetDefaultRelocationModel() const; 245 virtual const char *GetForcedPicModel() const; 246 247 virtual bool SupportsProfiling() const; 248 249 virtual bool SupportsObjCGC() const; 250 251 virtual bool UseDwarfDebugFlags() const; 252 253 virtual bool UseSjLjExceptions() const; 254 255 /// } 256 }; 257 258 /// DarwinClang - The Darwin toolchain used by Clang. 259 class LLVM_LIBRARY_VISIBILITY DarwinClang : public Darwin { 260 public: 261 DarwinClang(const HostInfo &Host, const llvm::Triple& Triple); 262 263 /// @name Darwin ToolChain Implementation 264 /// { 265 266 virtual void AddLinkSearchPathArgs(const ArgList &Args, 267 ArgStringList &CmdArgs) const; 268 269 virtual void AddLinkRuntimeLibArgs(const ArgList &Args, 270 ArgStringList &CmdArgs) const; 271 void AddLinkRuntimeLib(const ArgList &Args, ArgStringList &CmdArgs, 272 const char *DarwinStaticLib) const; 273 274 virtual void AddCXXStdlibLibArgs(const ArgList &Args, 275 ArgStringList &CmdArgs) const; 276 277 virtual void AddCCKextLibArgs(const ArgList &Args, 278 ArgStringList &CmdArgs) const; 279 280 virtual void AddLinkARCArgs(const ArgList &Args, 281 ArgStringList &CmdArgs) const; 282 /// } 283 }; 284 285 /// Darwin_Generic_GCC - Generic Darwin tool chain using gcc. 286 class LLVM_LIBRARY_VISIBILITY Darwin_Generic_GCC : public Generic_GCC { 287 public: 288 Darwin_Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple) 289 : Generic_GCC(Host, Triple) {} 290 291 std::string ComputeEffectiveClangTriple(const ArgList &Args) const; 292 293 virtual const char *GetDefaultRelocationModel() const { return "pic"; } 294 }; 295 296 class LLVM_LIBRARY_VISIBILITY Generic_ELF : public Generic_GCC { 297 public: 298 Generic_ELF(const HostInfo &Host, const llvm::Triple& Triple) 299 : Generic_GCC(Host, Triple) {} 300 301 virtual bool IsIntegratedAssemblerDefault() const { 302 // Default integrated assembler to on for x86. 303 return (getTriple().getArch() == llvm::Triple::x86 || 304 getTriple().getArch() == llvm::Triple::x86_64); 305 } 306 }; 307 308 class LLVM_LIBRARY_VISIBILITY AuroraUX : public Generic_GCC { 309 public: 310 AuroraUX(const HostInfo &Host, const llvm::Triple& Triple); 311 312 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 313 const ActionList &Inputs) const; 314 }; 315 316 class LLVM_LIBRARY_VISIBILITY OpenBSD : public Generic_ELF { 317 public: 318 OpenBSD(const HostInfo &Host, const llvm::Triple& Triple); 319 320 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 321 const ActionList &Inputs) const; 322 }; 323 324 class LLVM_LIBRARY_VISIBILITY FreeBSD : public Generic_ELF { 325 public: 326 FreeBSD(const HostInfo &Host, const llvm::Triple& Triple); 327 328 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 329 const ActionList &Inputs) const; 330 }; 331 332 class LLVM_LIBRARY_VISIBILITY NetBSD : public Generic_ELF { 333 const llvm::Triple ToolTriple; 334 335 public: 336 NetBSD(const HostInfo &Host, const llvm::Triple& Triple, 337 const llvm::Triple& ToolTriple); 338 339 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 340 const ActionList &Inputs) const; 341 }; 342 343 class LLVM_LIBRARY_VISIBILITY Minix : public Generic_GCC { 344 public: 345 Minix(const HostInfo &Host, const llvm::Triple& Triple); 346 347 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 348 const ActionList &Inputs) const; 349 }; 350 351 class LLVM_LIBRARY_VISIBILITY DragonFly : public Generic_ELF { 352 public: 353 DragonFly(const HostInfo &Host, const llvm::Triple& Triple); 354 355 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 356 const ActionList &Inputs) const; 357 }; 358 359 class LLVM_LIBRARY_VISIBILITY Linux : public Generic_ELF { 360 public: 361 Linux(const HostInfo &Host, const llvm::Triple& Triple); 362 363 virtual bool HasNativeLLVMSupport() const; 364 365 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 366 const ActionList &Inputs) const; 367 368 std::string Linker; 369 std::vector<std::string> ExtraOpts; 370 }; 371 372 373 /// TCEToolChain - A tool chain using the llvm bitcode tools to perform 374 /// all subcommands. See http://tce.cs.tut.fi for our peculiar target. 375 class LLVM_LIBRARY_VISIBILITY TCEToolChain : public ToolChain { 376 public: 377 TCEToolChain(const HostInfo &Host, const llvm::Triple& Triple); 378 ~TCEToolChain(); 379 380 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 381 const ActionList &Inputs) const; 382 bool IsMathErrnoDefault() const; 383 bool IsUnwindTablesDefault() const; 384 const char* GetDefaultRelocationModel() const; 385 const char* GetForcedPicModel() const; 386 387 private: 388 mutable llvm::DenseMap<unsigned, Tool*> Tools; 389 390 }; 391 392 class LLVM_LIBRARY_VISIBILITY Windows : public ToolChain { 393 mutable llvm::DenseMap<unsigned, Tool*> Tools; 394 395 public: 396 Windows(const HostInfo &Host, const llvm::Triple& Triple); 397 398 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA, 399 const ActionList &Inputs) const; 400 401 virtual bool IsIntegratedAssemblerDefault() const; 402 virtual bool IsUnwindTablesDefault() const; 403 virtual const char *GetDefaultRelocationModel() const; 404 virtual const char *GetForcedPicModel() const; 405 }; 406 407 } // end namespace toolchains 408 } // end namespace driver 409 } // end namespace clang 410 411 #endif 412
