1 //===--- ToolChains.h - ToolChain Implementations ---------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef CLANG_LIB_DRIVER_TOOLCHAINS_H_
11 #define CLANG_LIB_DRIVER_TOOLCHAINS_H_
13 #include "clang/Driver/Action.h"
14 #include "clang/Driver/ToolChain.h"
16 #include "llvm/ADT/DenseMap.h"
17 #include "llvm/Support/Compiler.h"
23 namespace toolchains {
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 VISIBILITY_HIDDEN Generic_GCC : public ToolChain {
30 mutable llvm::DenseMap<unsigned, Tool*> Tools;
33 Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple);
36 virtual DerivedArgList *TranslateArgs(InputArgList &Args,
37 const char *BoundArch) const;
39 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const;
41 virtual bool IsUnwindTablesDefault() const;
42 virtual const char *GetDefaultRelocationModel() const;
43 virtual const char *GetForcedPicModel() const;
46 /// Darwin - The base Darwin tool chain.
47 class VISIBILITY_HIDDEN Darwin : public ToolChain {
48 mutable llvm::DenseMap<unsigned, Tool*> Tools;
50 /// Whether the information on the target has been initialized.
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;
57 /// Whether we are targetting iPhoneOS target.
58 mutable bool TargetIsIPhoneOS;
60 /// The OS version we are targetting.
61 mutable unsigned TargetVersion[3];
63 /// The default macosx-version-min of this tool chain; empty until
65 std::string MacosxVersionMin;
68 Darwin(const HostInfo &Host, const llvm::Triple& Triple,
69 const unsigned (&DarwinVersion)[3]);
72 /// @name Darwin Specific Toolchain API
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)
86 assert(!TargetInitialized && "Target already initialized!");
87 TargetInitialized = true;
88 TargetIsIPhoneOS = isIPhoneOS;
89 TargetVersion[0] = Major;
90 TargetVersion[1] = Minor;
91 TargetVersion[2] = Micro;
94 bool isTargetIPhoneOS() const {
95 assert(TargetInitialized && "Target not initialized!");
96 return TargetIsIPhoneOS;
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];
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;
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;
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);
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);
131 /// AddLinkSearchPathArgs - Add the linker search paths to \arg CmdArgs.
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;
139 /// AddLinkRuntimeLibArgs - Add the linker arguments to link the compiler
141 virtual void AddLinkRuntimeLibArgs(const ArgList &Args,
142 ArgStringList &CmdArgs) const = 0;
145 /// @name ToolChain Implementation
148 virtual DerivedArgList *TranslateArgs(InputArgList &Args,
149 const char *BoundArch) const;
151 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const;
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);
158 return !isMacosxVersionLT(10, 6);
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;
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);
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);
174 virtual const char *GetDefaultRelocationModel() const;
175 virtual const char *GetForcedPicModel() const;
177 virtual bool UseDwarfDebugFlags() const;
179 virtual bool UseSjLjExceptions() const;
184 /// DarwinClang - The Darwin toolchain used by Clang.
185 class VISIBILITY_HIDDEN DarwinClang : public Darwin {
187 DarwinClang(const HostInfo &Host, const llvm::Triple& Triple,
188 const unsigned (&DarwinVersion)[3]);
190 /// @name Darwin ToolChain Implementation
193 virtual void AddLinkSearchPathArgs(const ArgList &Args,
194 ArgStringList &CmdArgs) const;
196 virtual void AddLinkRuntimeLibArgs(const ArgList &Args,
197 ArgStringList &CmdArgs) const;
202 /// DarwinGCC - The Darwin toolchain used by GCC.
203 class VISIBILITY_HIDDEN DarwinGCC : public Darwin {
204 /// GCC version to use.
205 unsigned GCCVersion[3];
207 /// The directory suffix for this tool chain.
208 std::string ToolChainDir;
211 DarwinGCC(const HostInfo &Host, const llvm::Triple& Triple,
212 const unsigned (&DarwinVersion)[3],
213 const unsigned (&GCCVersion)[3]);
215 /// @name Darwin ToolChain Implementation
218 virtual void AddLinkSearchPathArgs(const ArgList &Args,
219 ArgStringList &CmdArgs) const;
221 virtual void AddLinkRuntimeLibArgs(const ArgList &Args,
222 ArgStringList &CmdArgs) const;
227 /// Darwin_Generic_GCC - Generic Darwin tool chain using gcc.
228 class VISIBILITY_HIDDEN Darwin_Generic_GCC : public Generic_GCC {
230 Darwin_Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple)
231 : Generic_GCC(Host, Triple) {}
233 virtual const char *GetDefaultRelocationModel() const { return "pic"; }
236 class VISIBILITY_HIDDEN AuroraUX : public Generic_GCC {
238 AuroraUX(const HostInfo &Host, const llvm::Triple& Triple);
240 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const;
243 class VISIBILITY_HIDDEN OpenBSD : public Generic_GCC {
245 OpenBSD(const HostInfo &Host, const llvm::Triple& Triple);
247 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const;
250 class VISIBILITY_HIDDEN FreeBSD : public Generic_GCC {
252 FreeBSD(const HostInfo &Host, const llvm::Triple& Triple, bool Lib32);
254 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const;
257 class VISIBILITY_HIDDEN DragonFly : public Generic_GCC {
259 DragonFly(const HostInfo &Host, const llvm::Triple& Triple);
261 virtual Tool &SelectTool(const Compilation &C, const JobAction &JA) const;
264 class VISIBILITY_HIDDEN Linux : public Generic_GCC {
266 Linux(const HostInfo &Host, const llvm::Triple& Triple);
270 } // end namespace toolchains
271 } // end namespace driver
272 } // end namespace clang