ToolChains.h revision 609508ce95732e7e7010f79c5207613eced7c9cb
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 21namespace clang { 22namespace driver { 23namespace 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. 28class VISIBILITY_HIDDEN Generic_GCC : public ToolChain { 29protected: 30 mutable llvm::DenseMap<unsigned, Tool*> Tools; 31 32public: 33 Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple); 34 ~Generic_GCC(); 35 36 virtual DerivedArgList *TranslateArgs(InputArgList &Args, 37 const char *BoundArch) const; 38 39 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const; 40 41 virtual bool IsUnwindTablesDefault() const; 42 virtual const char *GetDefaultRelocationModel() const; 43 virtual const char *GetForcedPicModel() const; 44}; 45 46/// Darwin - The base Darwin tool chain. 47class VISIBILITY_HIDDEN Darwin : public ToolChain { 48 mutable llvm::DenseMap<unsigned, Tool*> Tools; 49 50 /// Whether the information on the target has been initialized. 51 // 52 // FIXME: This should be eliminated. What we want to do is make this part of 53 // the "default target for arguments" selection process, once we get out of 54 // the argument translation business. 55 mutable bool TargetInitialized; 56 57 /// Whether we are targetting iPhoneOS target. 58 mutable bool TargetIsIPhoneOS; 59 60 /// The OS version we are targetting. 61 mutable unsigned TargetVersion[3]; 62 63 /// The default macosx-version-min of this tool chain; empty until 64 /// initialized. 65 std::string MacosxVersionMin; 66 67public: 68 Darwin(const HostInfo &Host, const llvm::Triple& Triple, 69 const unsigned (&DarwinVersion)[3]); 70 ~Darwin(); 71 72 /// @name Darwin Specific Toolchain API 73 /// { 74 75 // FIXME: Eliminate these ...Target functions and derive separate tool chains 76 // for these targets and put version in constructor. 77 void setTarget(bool isIPhoneOS, unsigned Major, unsigned Minor, 78 unsigned Micro) const { 79 // FIXME: For now, allow reinitialization as long as values don't 80 // change. This will go away when we move away from argument translation. 81 if (TargetInitialized && TargetIsIPhoneOS == isIPhoneOS && 82 TargetVersion[0] == Major && TargetVersion[1] == Minor && 83 TargetVersion[2] == Micro) 84 return; 85 86 assert(!TargetInitialized && "Target already initialized!"); 87 TargetInitialized = true; 88 TargetIsIPhoneOS = isIPhoneOS; 89 TargetVersion[0] = Major; 90 TargetVersion[1] = Minor; 91 TargetVersion[2] = Micro; 92 } 93 94 bool isTargetIPhoneOS() const { 95 assert(TargetInitialized && "Target not initialized!"); 96 return TargetIsIPhoneOS; 97 } 98 99 void getTargetVersion(unsigned (&Res)[3]) const { 100 assert(TargetInitialized && "Target not initialized!"); 101 Res[0] = TargetVersion[0]; 102 Res[1] = TargetVersion[1]; 103 Res[2] = TargetVersion[2]; 104 } 105 106 /// getDarwinArchName - Get the "Darwin" arch name for a particular compiler 107 /// invocation. For example, Darwin treats different ARM variations as 108 /// distinct architectures. 109 llvm::StringRef getDarwinArchName(const ArgList &Args) const; 110 111 static bool isVersionLT(unsigned (&A)[3], unsigned (&B)[3]) { 112 for (unsigned i=0; i < 3; ++i) { 113 if (A[i] > B[i]) return false; 114 if (A[i] < B[i]) return true; 115 } 116 return false; 117 } 118 119 bool isIPhoneOSVersionLT(unsigned V0, unsigned V1=0, unsigned V2=0) const { 120 assert(isTargetIPhoneOS() && "Unexpected call for OS X target!"); 121 unsigned B[3] = { V0, V1, V2 }; 122 return isVersionLT(TargetVersion, B); 123 } 124 125 bool isMacosxVersionLT(unsigned V0, unsigned V1=0, unsigned V2=0) const { 126 assert(!isTargetIPhoneOS() && "Unexpected call for iPhoneOS target!"); 127 unsigned B[3] = { V0, V1, V2 }; 128 return isVersionLT(TargetVersion, B); 129 } 130 131 /// AddLinkSearchPathArgs - Add the linker search paths to \arg CmdArgs. 132 /// 133 /// \param Args - The input argument list. 134 /// \param CmdArgs [out] - The command argument list to append the paths 135 /// (prefixed by -L) to. 136 virtual void AddLinkSearchPathArgs(const ArgList &Args, 137 ArgStringList &CmdArgs) const = 0; 138 139 /// AddLinkRuntimeLibArgs - Add the linker arguments to link the compiler 140 /// runtime library. 141 virtual void AddLinkRuntimeLibArgs(const ArgList &Args, 142 ArgStringList &CmdArgs) const = 0; 143 144 /// } 145 /// @name ToolChain Implementation 146 /// { 147 148 virtual DerivedArgList *TranslateArgs(InputArgList &Args, 149 const char *BoundArch) const; 150 151 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const; 152 153 virtual bool IsBlocksDefault() const { 154 // Blocks default to on for OS X 10.6 and iPhoneOS 3.0 and beyond. 155 if (isTargetIPhoneOS()) 156 return !isIPhoneOSVersionLT(3); 157 else 158 return !isMacosxVersionLT(10, 6); 159 } 160 virtual bool IsObjCNonFragileABIDefault() const { 161 // Non-fragile ABI default to on for iPhoneOS and x86-64. 162 return isTargetIPhoneOS() || getTriple().getArch() == llvm::Triple::x86_64; 163 } 164 virtual bool IsObjCLegacyDispatchDefault() const { 165 // This is only used with the non-fragile ABI. 166 return (getTriple().getArch() == llvm::Triple::arm || 167 getTriple().getArch() == llvm::Triple::thumb); 168 } 169 virtual bool IsUnwindTablesDefault() const; 170 virtual unsigned GetDefaultStackProtectorLevel() const { 171 // Stack protectors default to on for 10.6 and beyond. 172 return !isTargetIPhoneOS() && !isMacosxVersionLT(10, 6); 173 } 174 virtual const char *GetDefaultRelocationModel() const; 175 virtual const char *GetForcedPicModel() const; 176 177 virtual bool UseDwarfDebugFlags() const; 178 179 /// } 180}; 181 182/// DarwinClang - The Darwin toolchain used by Clang. 183class VISIBILITY_HIDDEN DarwinClang : public Darwin { 184public: 185 DarwinClang(const HostInfo &Host, const llvm::Triple& Triple, 186 const unsigned (&DarwinVersion)[3]); 187 188 /// @name Darwin ToolChain Implementation 189 /// { 190 191 virtual void AddLinkSearchPathArgs(const ArgList &Args, 192 ArgStringList &CmdArgs) const; 193 194 virtual void AddLinkRuntimeLibArgs(const ArgList &Args, 195 ArgStringList &CmdArgs) const; 196 197 /// } 198}; 199 200/// DarwinGCC - The Darwin toolchain used by GCC. 201class VISIBILITY_HIDDEN DarwinGCC : public Darwin { 202 /// GCC version to use. 203 unsigned GCCVersion[3]; 204 205 /// The directory suffix for this tool chain. 206 std::string ToolChainDir; 207 208public: 209 DarwinGCC(const HostInfo &Host, const llvm::Triple& Triple, 210 const unsigned (&DarwinVersion)[3], 211 const unsigned (&GCCVersion)[3]); 212 213 /// @name Darwin ToolChain Implementation 214 /// { 215 216 virtual void AddLinkSearchPathArgs(const ArgList &Args, 217 ArgStringList &CmdArgs) const; 218 219 virtual void AddLinkRuntimeLibArgs(const ArgList &Args, 220 ArgStringList &CmdArgs) const; 221 222 /// } 223}; 224 225/// Darwin_Generic_GCC - Generic Darwin tool chain using gcc. 226class VISIBILITY_HIDDEN Darwin_Generic_GCC : public Generic_GCC { 227public: 228 Darwin_Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple) 229 : Generic_GCC(Host, Triple) {} 230 231 virtual const char *GetDefaultRelocationModel() const { return "pic"; } 232}; 233 234class VISIBILITY_HIDDEN AuroraUX : public Generic_GCC { 235public: 236 AuroraUX(const HostInfo &Host, const llvm::Triple& Triple); 237 238 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const; 239}; 240 241class VISIBILITY_HIDDEN OpenBSD : public Generic_GCC { 242public: 243 OpenBSD(const HostInfo &Host, const llvm::Triple& Triple); 244 245 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const; 246}; 247 248class VISIBILITY_HIDDEN FreeBSD : public Generic_GCC { 249public: 250 FreeBSD(const HostInfo &Host, const llvm::Triple& Triple, bool Lib32); 251 252 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const; 253}; 254 255class VISIBILITY_HIDDEN DragonFly : public Generic_GCC { 256public: 257 DragonFly(const HostInfo &Host, const llvm::Triple& Triple); 258 259 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const; 260}; 261 262class VISIBILITY_HIDDEN Linux : public Generic_GCC { 263public: 264 Linux(const HostInfo &Host, const llvm::Triple& Triple); 265}; 266 267 268} // end namespace toolchains 269} // end namespace driver 270} // end namespace clang 271 272#endif 273