| File: | clang/lib/Driver/ToolChains/Darwin.cpp |
| Warning: | line 2652, column 7 Value stored to 'A' is never read |
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| 1 | //===--- Darwin.cpp - Darwin Tool and ToolChain Implementations -*- C++ -*-===// |
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "Darwin.h" |
| 10 | #include "Arch/AArch64.h" |
| 11 | #include "Arch/ARM.h" |
| 12 | #include "CommonArgs.h" |
| 13 | #include "clang/Basic/AlignedAllocation.h" |
| 14 | #include "clang/Basic/ObjCRuntime.h" |
| 15 | #include "clang/Config/config.h" |
| 16 | #include "clang/Driver/Compilation.h" |
| 17 | #include "clang/Driver/Driver.h" |
| 18 | #include "clang/Driver/DriverDiagnostic.h" |
| 19 | #include "clang/Driver/Options.h" |
| 20 | #include "clang/Driver/SanitizerArgs.h" |
| 21 | #include "llvm/ADT/StringSwitch.h" |
| 22 | #include "llvm/Option/ArgList.h" |
| 23 | #include "llvm/ProfileData/InstrProf.h" |
| 24 | #include "llvm/Support/Path.h" |
| 25 | #include "llvm/Support/ScopedPrinter.h" |
| 26 | #include "llvm/Support/TargetParser.h" |
| 27 | #include "llvm/Support/Threading.h" |
| 28 | #include "llvm/Support/VirtualFileSystem.h" |
| 29 | #include <cstdlib> // ::getenv |
| 30 | |
| 31 | using namespace clang::driver; |
| 32 | using namespace clang::driver::tools; |
| 33 | using namespace clang::driver::toolchains; |
| 34 | using namespace clang; |
| 35 | using namespace llvm::opt; |
| 36 | |
| 37 | static const VersionTuple minimumMacCatalystDeploymentTarget() { |
| 38 | return VersionTuple(13, 1); |
| 39 | } |
| 40 | |
| 41 | llvm::Triple::ArchType darwin::getArchTypeForMachOArchName(StringRef Str) { |
| 42 | // See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for |
| 43 | // archs which Darwin doesn't use. |
| 44 | |
| 45 | // The matching this routine does is fairly pointless, since it is neither the |
| 46 | // complete architecture list, nor a reasonable subset. The problem is that |
| 47 | // historically the driver driver accepts this and also ties its -march= |
| 48 | // handling to the architecture name, so we need to be careful before removing |
| 49 | // support for it. |
| 50 | |
| 51 | // This code must be kept in sync with Clang's Darwin specific argument |
| 52 | // translation. |
| 53 | |
| 54 | return llvm::StringSwitch<llvm::Triple::ArchType>(Str) |
| 55 | .Cases("ppc", "ppc601", "ppc603", "ppc604", "ppc604e", llvm::Triple::ppc) |
| 56 | .Cases("ppc750", "ppc7400", "ppc7450", "ppc970", llvm::Triple::ppc) |
| 57 | .Case("ppc64", llvm::Triple::ppc64) |
| 58 | .Cases("i386", "i486", "i486SX", "i586", "i686", llvm::Triple::x86) |
| 59 | .Cases("pentium", "pentpro", "pentIIm3", "pentIIm5", "pentium4", |
| 60 | llvm::Triple::x86) |
| 61 | .Cases("x86_64", "x86_64h", llvm::Triple::x86_64) |
| 62 | // This is derived from the driver driver. |
| 63 | .Cases("arm", "armv4t", "armv5", "armv6", "armv6m", llvm::Triple::arm) |
| 64 | .Cases("armv7", "armv7em", "armv7k", "armv7m", llvm::Triple::arm) |
| 65 | .Cases("armv7s", "xscale", llvm::Triple::arm) |
| 66 | .Cases("arm64", "arm64e", llvm::Triple::aarch64) |
| 67 | .Case("arm64_32", llvm::Triple::aarch64_32) |
| 68 | .Case("r600", llvm::Triple::r600) |
| 69 | .Case("amdgcn", llvm::Triple::amdgcn) |
| 70 | .Case("nvptx", llvm::Triple::nvptx) |
| 71 | .Case("nvptx64", llvm::Triple::nvptx64) |
| 72 | .Case("amdil", llvm::Triple::amdil) |
| 73 | .Case("spir", llvm::Triple::spir) |
| 74 | .Default(llvm::Triple::UnknownArch); |
| 75 | } |
| 76 | |
| 77 | void darwin::setTripleTypeForMachOArchName(llvm::Triple &T, StringRef Str) { |
| 78 | const llvm::Triple::ArchType Arch = getArchTypeForMachOArchName(Str); |
| 79 | llvm::ARM::ArchKind ArchKind = llvm::ARM::parseArch(Str); |
| 80 | T.setArch(Arch); |
| 81 | if (Arch != llvm::Triple::UnknownArch) |
| 82 | T.setArchName(Str); |
| 83 | |
| 84 | if (ArchKind == llvm::ARM::ArchKind::ARMV6M || |
| 85 | ArchKind == llvm::ARM::ArchKind::ARMV7M || |
| 86 | ArchKind == llvm::ARM::ArchKind::ARMV7EM) { |
| 87 | T.setOS(llvm::Triple::UnknownOS); |
| 88 | T.setObjectFormat(llvm::Triple::MachO); |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | void darwin::Assembler::ConstructJob(Compilation &C, const JobAction &JA, |
| 93 | const InputInfo &Output, |
| 94 | const InputInfoList &Inputs, |
| 95 | const ArgList &Args, |
| 96 | const char *LinkingOutput) const { |
| 97 | ArgStringList CmdArgs; |
| 98 | |
| 99 | assert(Inputs.size() == 1 && "Unexpected number of inputs.")(static_cast<void> (0)); |
| 100 | const InputInfo &Input = Inputs[0]; |
| 101 | |
| 102 | // Determine the original source input. |
| 103 | const Action *SourceAction = &JA; |
| 104 | while (SourceAction->getKind() != Action::InputClass) { |
| 105 | assert(!SourceAction->getInputs().empty() && "unexpected root action!")(static_cast<void> (0)); |
| 106 | SourceAction = SourceAction->getInputs()[0]; |
| 107 | } |
| 108 | |
| 109 | // If -fno-integrated-as is used add -Q to the darwin assembler driver to make |
| 110 | // sure it runs its system assembler not clang's integrated assembler. |
| 111 | // Applicable to darwin11+ and Xcode 4+. darwin<10 lacked integrated-as. |
| 112 | // FIXME: at run-time detect assembler capabilities or rely on version |
| 113 | // information forwarded by -target-assembler-version. |
| 114 | if (Args.hasArg(options::OPT_fno_integrated_as)) { |
| 115 | const llvm::Triple &T(getToolChain().getTriple()); |
| 116 | if (!(T.isMacOSX() && T.isMacOSXVersionLT(10, 7))) |
| 117 | CmdArgs.push_back("-Q"); |
| 118 | } |
| 119 | |
| 120 | // Forward -g, assuming we are dealing with an actual assembly file. |
| 121 | if (SourceAction->getType() == types::TY_Asm || |
| 122 | SourceAction->getType() == types::TY_PP_Asm) { |
| 123 | if (Args.hasArg(options::OPT_gstabs)) |
| 124 | CmdArgs.push_back("--gstabs"); |
| 125 | else if (Args.hasArg(options::OPT_g_Group)) |
| 126 | CmdArgs.push_back("-g"); |
| 127 | } |
| 128 | |
| 129 | // Derived from asm spec. |
| 130 | AddMachOArch(Args, CmdArgs); |
| 131 | |
| 132 | // Use -force_cpusubtype_ALL on x86 by default. |
| 133 | if (getToolChain().getTriple().isX86() || |
| 134 | Args.hasArg(options::OPT_force__cpusubtype__ALL)) |
| 135 | CmdArgs.push_back("-force_cpusubtype_ALL"); |
| 136 | |
| 137 | if (getToolChain().getArch() != llvm::Triple::x86_64 && |
| 138 | (((Args.hasArg(options::OPT_mkernel) || |
| 139 | Args.hasArg(options::OPT_fapple_kext)) && |
| 140 | getMachOToolChain().isKernelStatic()) || |
| 141 | Args.hasArg(options::OPT_static))) |
| 142 | CmdArgs.push_back("-static"); |
| 143 | |
| 144 | Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); |
| 145 | |
| 146 | assert(Output.isFilename() && "Unexpected lipo output.")(static_cast<void> (0)); |
| 147 | CmdArgs.push_back("-o"); |
| 148 | CmdArgs.push_back(Output.getFilename()); |
| 149 | |
| 150 | assert(Input.isFilename() && "Invalid input.")(static_cast<void> (0)); |
| 151 | CmdArgs.push_back(Input.getFilename()); |
| 152 | |
| 153 | // asm_final spec is empty. |
| 154 | |
| 155 | const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); |
| 156 | C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(), |
| 157 | Exec, CmdArgs, Inputs, Output)); |
| 158 | } |
| 159 | |
| 160 | void darwin::MachOTool::anchor() {} |
| 161 | |
| 162 | void darwin::MachOTool::AddMachOArch(const ArgList &Args, |
| 163 | ArgStringList &CmdArgs) const { |
| 164 | StringRef ArchName = getMachOToolChain().getMachOArchName(Args); |
| 165 | |
| 166 | // Derived from darwin_arch spec. |
| 167 | CmdArgs.push_back("-arch"); |
| 168 | CmdArgs.push_back(Args.MakeArgString(ArchName)); |
| 169 | |
| 170 | // FIXME: Is this needed anymore? |
| 171 | if (ArchName == "arm") |
| 172 | CmdArgs.push_back("-force_cpusubtype_ALL"); |
| 173 | } |
| 174 | |
| 175 | bool darwin::Linker::NeedsTempPath(const InputInfoList &Inputs) const { |
| 176 | // We only need to generate a temp path for LTO if we aren't compiling object |
| 177 | // files. When compiling source files, we run 'dsymutil' after linking. We |
| 178 | // don't run 'dsymutil' when compiling object files. |
| 179 | for (const auto &Input : Inputs) |
| 180 | if (Input.getType() != types::TY_Object) |
| 181 | return true; |
| 182 | |
| 183 | return false; |
| 184 | } |
| 185 | |
| 186 | /// Pass -no_deduplicate to ld64 under certain conditions: |
| 187 | /// |
| 188 | /// - Either -O0 or -O1 is explicitly specified |
| 189 | /// - No -O option is specified *and* this is a compile+link (implicit -O0) |
| 190 | /// |
| 191 | /// Also do *not* add -no_deduplicate when no -O option is specified and this |
| 192 | /// is just a link (we can't imply -O0) |
| 193 | static bool shouldLinkerNotDedup(bool IsLinkerOnlyAction, const ArgList &Args) { |
| 194 | if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { |
| 195 | if (A->getOption().matches(options::OPT_O0)) |
| 196 | return true; |
| 197 | if (A->getOption().matches(options::OPT_O)) |
| 198 | return llvm::StringSwitch<bool>(A->getValue()) |
| 199 | .Case("1", true) |
| 200 | .Default(false); |
| 201 | return false; // OPT_Ofast & OPT_O4 |
| 202 | } |
| 203 | |
| 204 | if (!IsLinkerOnlyAction) // Implicit -O0 for compile+linker only. |
| 205 | return true; |
| 206 | return false; |
| 207 | } |
| 208 | |
| 209 | void darwin::Linker::AddLinkArgs(Compilation &C, const ArgList &Args, |
| 210 | ArgStringList &CmdArgs, |
| 211 | const InputInfoList &Inputs, |
| 212 | unsigned Version[5], bool LinkerIsLLD, |
| 213 | bool LinkerIsLLDDarwinNew) const { |
| 214 | const Driver &D = getToolChain().getDriver(); |
| 215 | const toolchains::MachO &MachOTC = getMachOToolChain(); |
| 216 | |
| 217 | // Newer linkers support -demangle. Pass it if supported and not disabled by |
| 218 | // the user. |
| 219 | if ((Version[0] >= 100 || LinkerIsLLD) && |
| 220 | !Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) |
| 221 | CmdArgs.push_back("-demangle"); |
| 222 | |
| 223 | // FIXME: Pass most of the flags below that check Version if LinkerIsLLD too. |
| 224 | |
| 225 | if (Args.hasArg(options::OPT_rdynamic) && Version[0] >= 137) |
| 226 | CmdArgs.push_back("-export_dynamic"); |
| 227 | |
| 228 | // If we are using App Extension restrictions, pass a flag to the linker |
| 229 | // telling it that the compiled code has been audited. |
| 230 | if (Args.hasFlag(options::OPT_fapplication_extension, |
| 231 | options::OPT_fno_application_extension, false)) |
| 232 | CmdArgs.push_back("-application_extension"); |
| 233 | |
| 234 | if (D.isUsingLTO() && Version[0] >= 116 && NeedsTempPath(Inputs)) { |
| 235 | std::string TmpPathName; |
| 236 | if (D.getLTOMode() == LTOK_Full) { |
| 237 | // If we are using full LTO, then automatically create a temporary file |
| 238 | // path for the linker to use, so that it's lifetime will extend past a |
| 239 | // possible dsymutil step. |
| 240 | TmpPathName = |
| 241 | D.GetTemporaryPath("cc", types::getTypeTempSuffix(types::TY_Object)); |
| 242 | } else if (D.getLTOMode() == LTOK_Thin) |
| 243 | // If we are using thin LTO, then create a directory instead. |
| 244 | TmpPathName = D.GetTemporaryDirectory("thinlto"); |
| 245 | |
| 246 | if (!TmpPathName.empty()) { |
| 247 | auto *TmpPath = C.getArgs().MakeArgString(TmpPathName); |
| 248 | C.addTempFile(TmpPath); |
| 249 | CmdArgs.push_back("-object_path_lto"); |
| 250 | CmdArgs.push_back(TmpPath); |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | // Use -lto_library option to specify the libLTO.dylib path. Try to find |
| 255 | // it in clang installed libraries. ld64 will only look at this argument |
| 256 | // when it actually uses LTO, so libLTO.dylib only needs to exist at link |
| 257 | // time if ld64 decides that it needs to use LTO. |
| 258 | // Since this is passed unconditionally, ld64 will never look for libLTO.dylib |
| 259 | // next to it. That's ok since ld64 using a libLTO.dylib not matching the |
| 260 | // clang version won't work anyways. |
| 261 | // lld is built at the same revision as clang and statically links in |
| 262 | // LLVM libraries, so it doesn't need libLTO.dylib. |
| 263 | if (Version[0] >= 133 && !LinkerIsLLD) { |
| 264 | // Search for libLTO in <InstalledDir>/../lib/libLTO.dylib |
| 265 | StringRef P = llvm::sys::path::parent_path(D.Dir); |
| 266 | SmallString<128> LibLTOPath(P); |
| 267 | llvm::sys::path::append(LibLTOPath, "lib"); |
| 268 | llvm::sys::path::append(LibLTOPath, "libLTO.dylib"); |
| 269 | CmdArgs.push_back("-lto_library"); |
| 270 | CmdArgs.push_back(C.getArgs().MakeArgString(LibLTOPath)); |
| 271 | } |
| 272 | |
| 273 | // ld64 version 262 and above run the deduplicate pass by default. |
| 274 | if (Version[0] >= 262 && shouldLinkerNotDedup(C.getJobs().empty(), Args)) |
| 275 | CmdArgs.push_back("-no_deduplicate"); |
| 276 | |
| 277 | // Derived from the "link" spec. |
| 278 | Args.AddAllArgs(CmdArgs, options::OPT_static); |
| 279 | if (!Args.hasArg(options::OPT_static)) |
| 280 | CmdArgs.push_back("-dynamic"); |
| 281 | if (Args.hasArg(options::OPT_fgnu_runtime)) { |
| 282 | // FIXME: gcc replaces -lobjc in forward args with -lobjc-gnu |
| 283 | // here. How do we wish to handle such things? |
| 284 | } |
| 285 | |
| 286 | if (!Args.hasArg(options::OPT_dynamiclib)) { |
| 287 | AddMachOArch(Args, CmdArgs); |
| 288 | // FIXME: Why do this only on this path? |
| 289 | Args.AddLastArg(CmdArgs, options::OPT_force__cpusubtype__ALL); |
| 290 | |
| 291 | Args.AddLastArg(CmdArgs, options::OPT_bundle); |
| 292 | Args.AddAllArgs(CmdArgs, options::OPT_bundle__loader); |
| 293 | Args.AddAllArgs(CmdArgs, options::OPT_client__name); |
| 294 | |
| 295 | Arg *A; |
| 296 | if ((A = Args.getLastArg(options::OPT_compatibility__version)) || |
| 297 | (A = Args.getLastArg(options::OPT_current__version)) || |
| 298 | (A = Args.getLastArg(options::OPT_install__name))) |
| 299 | D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) |
| 300 | << "-dynamiclib"; |
| 301 | |
| 302 | Args.AddLastArg(CmdArgs, options::OPT_force__flat__namespace); |
| 303 | Args.AddLastArg(CmdArgs, options::OPT_keep__private__externs); |
| 304 | Args.AddLastArg(CmdArgs, options::OPT_private__bundle); |
| 305 | } else { |
| 306 | CmdArgs.push_back("-dylib"); |
| 307 | |
| 308 | Arg *A; |
| 309 | if ((A = Args.getLastArg(options::OPT_bundle)) || |
| 310 | (A = Args.getLastArg(options::OPT_bundle__loader)) || |
| 311 | (A = Args.getLastArg(options::OPT_client__name)) || |
| 312 | (A = Args.getLastArg(options::OPT_force__flat__namespace)) || |
| 313 | (A = Args.getLastArg(options::OPT_keep__private__externs)) || |
| 314 | (A = Args.getLastArg(options::OPT_private__bundle))) |
| 315 | D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) |
| 316 | << "-dynamiclib"; |
| 317 | |
| 318 | Args.AddAllArgsTranslated(CmdArgs, options::OPT_compatibility__version, |
| 319 | "-dylib_compatibility_version"); |
| 320 | Args.AddAllArgsTranslated(CmdArgs, options::OPT_current__version, |
| 321 | "-dylib_current_version"); |
| 322 | |
| 323 | AddMachOArch(Args, CmdArgs); |
| 324 | |
| 325 | Args.AddAllArgsTranslated(CmdArgs, options::OPT_install__name, |
| 326 | "-dylib_install_name"); |
| 327 | } |
| 328 | |
| 329 | Args.AddLastArg(CmdArgs, options::OPT_all__load); |
| 330 | Args.AddAllArgs(CmdArgs, options::OPT_allowable__client); |
| 331 | Args.AddLastArg(CmdArgs, options::OPT_bind__at__load); |
| 332 | if (MachOTC.isTargetIOSBased()) |
| 333 | Args.AddLastArg(CmdArgs, options::OPT_arch__errors__fatal); |
| 334 | Args.AddLastArg(CmdArgs, options::OPT_dead__strip); |
| 335 | Args.AddLastArg(CmdArgs, options::OPT_no__dead__strip__inits__and__terms); |
| 336 | Args.AddAllArgs(CmdArgs, options::OPT_dylib__file); |
| 337 | Args.AddLastArg(CmdArgs, options::OPT_dynamic); |
| 338 | Args.AddAllArgs(CmdArgs, options::OPT_exported__symbols__list); |
| 339 | Args.AddLastArg(CmdArgs, options::OPT_flat__namespace); |
| 340 | Args.AddAllArgs(CmdArgs, options::OPT_force__load); |
| 341 | Args.AddAllArgs(CmdArgs, options::OPT_headerpad__max__install__names); |
| 342 | Args.AddAllArgs(CmdArgs, options::OPT_image__base); |
| 343 | Args.AddAllArgs(CmdArgs, options::OPT_init); |
| 344 | |
| 345 | // Add the deployment target. |
| 346 | if (Version[0] >= 520 || LinkerIsLLDDarwinNew) |
| 347 | MachOTC.addPlatformVersionArgs(Args, CmdArgs); |
| 348 | else |
| 349 | MachOTC.addMinVersionArgs(Args, CmdArgs); |
| 350 | |
| 351 | Args.AddLastArg(CmdArgs, options::OPT_nomultidefs); |
| 352 | Args.AddLastArg(CmdArgs, options::OPT_multi__module); |
| 353 | Args.AddLastArg(CmdArgs, options::OPT_single__module); |
| 354 | Args.AddAllArgs(CmdArgs, options::OPT_multiply__defined); |
| 355 | Args.AddAllArgs(CmdArgs, options::OPT_multiply__defined__unused); |
| 356 | |
| 357 | if (const Arg *A = |
| 358 | Args.getLastArg(options::OPT_fpie, options::OPT_fPIE, |
| 359 | options::OPT_fno_pie, options::OPT_fno_PIE)) { |
| 360 | if (A->getOption().matches(options::OPT_fpie) || |
| 361 | A->getOption().matches(options::OPT_fPIE)) |
| 362 | CmdArgs.push_back("-pie"); |
| 363 | else |
| 364 | CmdArgs.push_back("-no_pie"); |
| 365 | } |
| 366 | |
| 367 | // for embed-bitcode, use -bitcode_bundle in linker command |
| 368 | if (C.getDriver().embedBitcodeEnabled()) { |
| 369 | // Check if the toolchain supports bitcode build flow. |
| 370 | if (MachOTC.SupportsEmbeddedBitcode()) { |
| 371 | CmdArgs.push_back("-bitcode_bundle"); |
| 372 | if (C.getDriver().embedBitcodeMarkerOnly() && Version[0] >= 278) { |
| 373 | CmdArgs.push_back("-bitcode_process_mode"); |
| 374 | CmdArgs.push_back("marker"); |
| 375 | } |
| 376 | } else |
| 377 | D.Diag(diag::err_drv_bitcode_unsupported_on_toolchain); |
| 378 | } |
| 379 | |
| 380 | // If GlobalISel is enabled, pass it through to LLVM. |
| 381 | if (Arg *A = Args.getLastArg(options::OPT_fglobal_isel, |
| 382 | options::OPT_fno_global_isel)) { |
| 383 | if (A->getOption().matches(options::OPT_fglobal_isel)) { |
| 384 | CmdArgs.push_back("-mllvm"); |
| 385 | CmdArgs.push_back("-global-isel"); |
| 386 | // Disable abort and fall back to SDAG silently. |
| 387 | CmdArgs.push_back("-mllvm"); |
| 388 | CmdArgs.push_back("-global-isel-abort=0"); |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | Args.AddLastArg(CmdArgs, options::OPT_prebind); |
| 393 | Args.AddLastArg(CmdArgs, options::OPT_noprebind); |
| 394 | Args.AddLastArg(CmdArgs, options::OPT_nofixprebinding); |
| 395 | Args.AddLastArg(CmdArgs, options::OPT_prebind__all__twolevel__modules); |
| 396 | Args.AddLastArg(CmdArgs, options::OPT_read__only__relocs); |
| 397 | Args.AddAllArgs(CmdArgs, options::OPT_sectcreate); |
| 398 | Args.AddAllArgs(CmdArgs, options::OPT_sectorder); |
| 399 | Args.AddAllArgs(CmdArgs, options::OPT_seg1addr); |
| 400 | Args.AddAllArgs(CmdArgs, options::OPT_segprot); |
| 401 | Args.AddAllArgs(CmdArgs, options::OPT_segaddr); |
| 402 | Args.AddAllArgs(CmdArgs, options::OPT_segs__read__only__addr); |
| 403 | Args.AddAllArgs(CmdArgs, options::OPT_segs__read__write__addr); |
| 404 | Args.AddAllArgs(CmdArgs, options::OPT_seg__addr__table); |
| 405 | Args.AddAllArgs(CmdArgs, options::OPT_seg__addr__table__filename); |
| 406 | Args.AddAllArgs(CmdArgs, options::OPT_sub__library); |
| 407 | Args.AddAllArgs(CmdArgs, options::OPT_sub__umbrella); |
| 408 | |
| 409 | // Give --sysroot= preference, over the Apple specific behavior to also use |
| 410 | // --isysroot as the syslibroot. |
| 411 | StringRef sysroot = C.getSysRoot(); |
| 412 | if (sysroot != "") { |
| 413 | CmdArgs.push_back("-syslibroot"); |
| 414 | CmdArgs.push_back(C.getArgs().MakeArgString(sysroot)); |
| 415 | } else if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { |
| 416 | CmdArgs.push_back("-syslibroot"); |
| 417 | CmdArgs.push_back(A->getValue()); |
| 418 | } |
| 419 | |
| 420 | Args.AddLastArg(CmdArgs, options::OPT_twolevel__namespace); |
| 421 | Args.AddLastArg(CmdArgs, options::OPT_twolevel__namespace__hints); |
| 422 | Args.AddAllArgs(CmdArgs, options::OPT_umbrella); |
| 423 | Args.AddAllArgs(CmdArgs, options::OPT_undefined); |
| 424 | Args.AddAllArgs(CmdArgs, options::OPT_unexported__symbols__list); |
| 425 | Args.AddAllArgs(CmdArgs, options::OPT_weak__reference__mismatches); |
| 426 | Args.AddLastArg(CmdArgs, options::OPT_X_Flag); |
| 427 | Args.AddAllArgs(CmdArgs, options::OPT_y); |
| 428 | Args.AddLastArg(CmdArgs, options::OPT_w); |
| 429 | Args.AddAllArgs(CmdArgs, options::OPT_pagezero__size); |
| 430 | Args.AddAllArgs(CmdArgs, options::OPT_segs__read__); |
| 431 | Args.AddLastArg(CmdArgs, options::OPT_seglinkedit); |
| 432 | Args.AddLastArg(CmdArgs, options::OPT_noseglinkedit); |
| 433 | Args.AddAllArgs(CmdArgs, options::OPT_sectalign); |
| 434 | Args.AddAllArgs(CmdArgs, options::OPT_sectobjectsymbols); |
| 435 | Args.AddAllArgs(CmdArgs, options::OPT_segcreate); |
| 436 | Args.AddLastArg(CmdArgs, options::OPT_why_load); |
| 437 | Args.AddLastArg(CmdArgs, options::OPT_whatsloaded); |
| 438 | Args.AddAllArgs(CmdArgs, options::OPT_dylinker__install__name); |
| 439 | Args.AddLastArg(CmdArgs, options::OPT_dylinker); |
| 440 | Args.AddLastArg(CmdArgs, options::OPT_Mach); |
| 441 | } |
| 442 | |
| 443 | /// Determine whether we are linking the ObjC runtime. |
| 444 | static bool isObjCRuntimeLinked(const ArgList &Args) { |
| 445 | if (isObjCAutoRefCount(Args)) { |
| 446 | Args.ClaimAllArgs(options::OPT_fobjc_link_runtime); |
| 447 | return true; |
| 448 | } |
| 449 | return Args.hasArg(options::OPT_fobjc_link_runtime); |
| 450 | } |
| 451 | |
| 452 | static bool checkRemarksOptions(const Driver &D, const ArgList &Args, |
| 453 | const llvm::Triple &Triple) { |
| 454 | // When enabling remarks, we need to error if: |
| 455 | // * The remark file is specified but we're targeting multiple architectures, |
| 456 | // which means more than one remark file is being generated. |
| 457 | bool hasMultipleInvocations = |
| 458 | Args.getAllArgValues(options::OPT_arch).size() > 1; |
| 459 | bool hasExplicitOutputFile = |
| 460 | Args.getLastArg(options::OPT_foptimization_record_file_EQ); |
| 461 | if (hasMultipleInvocations && hasExplicitOutputFile) { |
| 462 | D.Diag(diag::err_drv_invalid_output_with_multiple_archs) |
| 463 | << "-foptimization-record-file"; |
| 464 | return false; |
| 465 | } |
| 466 | return true; |
| 467 | } |
| 468 | |
| 469 | static void renderRemarksOptions(const ArgList &Args, ArgStringList &CmdArgs, |
| 470 | const llvm::Triple &Triple, |
| 471 | const InputInfo &Output, const JobAction &JA) { |
| 472 | StringRef Format = "yaml"; |
| 473 | if (const Arg *A = Args.getLastArg(options::OPT_fsave_optimization_record_EQ)) |
| 474 | Format = A->getValue(); |
| 475 | |
| 476 | CmdArgs.push_back("-mllvm"); |
| 477 | CmdArgs.push_back("-lto-pass-remarks-output"); |
| 478 | CmdArgs.push_back("-mllvm"); |
| 479 | |
| 480 | const Arg *A = Args.getLastArg(options::OPT_foptimization_record_file_EQ); |
| 481 | if (A) { |
| 482 | CmdArgs.push_back(A->getValue()); |
| 483 | } else { |
| 484 | assert(Output.isFilename() && "Unexpected ld output.")(static_cast<void> (0)); |
| 485 | SmallString<128> F; |
| 486 | F = Output.getFilename(); |
| 487 | F += ".opt."; |
| 488 | F += Format; |
| 489 | |
| 490 | CmdArgs.push_back(Args.MakeArgString(F)); |
| 491 | } |
| 492 | |
| 493 | if (const Arg *A = |
| 494 | Args.getLastArg(options::OPT_foptimization_record_passes_EQ)) { |
| 495 | CmdArgs.push_back("-mllvm"); |
| 496 | std::string Passes = |
| 497 | std::string("-lto-pass-remarks-filter=") + A->getValue(); |
| 498 | CmdArgs.push_back(Args.MakeArgString(Passes)); |
| 499 | } |
| 500 | |
| 501 | if (!Format.empty()) { |
| 502 | CmdArgs.push_back("-mllvm"); |
| 503 | Twine FormatArg = Twine("-lto-pass-remarks-format=") + Format; |
| 504 | CmdArgs.push_back(Args.MakeArgString(FormatArg)); |
| 505 | } |
| 506 | |
| 507 | if (getLastProfileUseArg(Args)) { |
| 508 | CmdArgs.push_back("-mllvm"); |
| 509 | CmdArgs.push_back("-lto-pass-remarks-with-hotness"); |
| 510 | |
| 511 | if (const Arg *A = |
| 512 | Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { |
| 513 | CmdArgs.push_back("-mllvm"); |
| 514 | std::string Opt = |
| 515 | std::string("-lto-pass-remarks-hotness-threshold=") + A->getValue(); |
| 516 | CmdArgs.push_back(Args.MakeArgString(Opt)); |
| 517 | } |
| 518 | } |
| 519 | } |
| 520 | |
| 521 | void darwin::Linker::ConstructJob(Compilation &C, const JobAction &JA, |
| 522 | const InputInfo &Output, |
| 523 | const InputInfoList &Inputs, |
| 524 | const ArgList &Args, |
| 525 | const char *LinkingOutput) const { |
| 526 | assert(Output.getType() == types::TY_Image && "Invalid linker output type.")(static_cast<void> (0)); |
| 527 | |
| 528 | // If the number of arguments surpasses the system limits, we will encode the |
| 529 | // input files in a separate file, shortening the command line. To this end, |
| 530 | // build a list of input file names that can be passed via a file with the |
| 531 | // -filelist linker option. |
| 532 | llvm::opt::ArgStringList InputFileList; |
| 533 | |
| 534 | // The logic here is derived from gcc's behavior; most of which |
| 535 | // comes from specs (starting with link_command). Consult gcc for |
| 536 | // more information. |
| 537 | ArgStringList CmdArgs; |
| 538 | |
| 539 | /// Hack(tm) to ignore linking errors when we are doing ARC migration. |
| 540 | if (Args.hasArg(options::OPT_ccc_arcmt_check, |
| 541 | options::OPT_ccc_arcmt_migrate)) { |
| 542 | for (const auto &Arg : Args) |
| 543 | Arg->claim(); |
| 544 | const char *Exec = |
| 545 | Args.MakeArgString(getToolChain().GetProgramPath("touch")); |
| 546 | CmdArgs.push_back(Output.getFilename()); |
| 547 | C.addCommand(std::make_unique<Command>( |
| 548 | JA, *this, ResponseFileSupport::None(), Exec, CmdArgs, None, Output)); |
| 549 | return; |
| 550 | } |
| 551 | |
| 552 | unsigned Version[5] = {0, 0, 0, 0, 0}; |
| 553 | if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) { |
| 554 | if (!Driver::GetReleaseVersion(A->getValue(), Version)) |
| 555 | getToolChain().getDriver().Diag(diag::err_drv_invalid_version_number) |
| 556 | << A->getAsString(Args); |
| 557 | } |
| 558 | |
| 559 | bool LinkerIsLLD, LinkerIsLLDDarwinNew; |
| 560 | const char *Exec = Args.MakeArgString( |
| 561 | getToolChain().GetLinkerPath(&LinkerIsLLD, &LinkerIsLLDDarwinNew)); |
| 562 | |
| 563 | // I'm not sure why this particular decomposition exists in gcc, but |
| 564 | // we follow suite for ease of comparison. |
| 565 | AddLinkArgs(C, Args, CmdArgs, Inputs, Version, LinkerIsLLD, |
| 566 | LinkerIsLLDDarwinNew); |
| 567 | |
| 568 | if (willEmitRemarks(Args) && |
| 569 | checkRemarksOptions(getToolChain().getDriver(), Args, |
| 570 | getToolChain().getTriple())) |
| 571 | renderRemarksOptions(Args, CmdArgs, getToolChain().getTriple(), Output, JA); |
| 572 | |
| 573 | // Propagate the -moutline flag to the linker in LTO. |
| 574 | if (Arg *A = |
| 575 | Args.getLastArg(options::OPT_moutline, options::OPT_mno_outline)) { |
| 576 | if (A->getOption().matches(options::OPT_moutline)) { |
| 577 | if (getMachOToolChain().getMachOArchName(Args) == "arm64") { |
| 578 | CmdArgs.push_back("-mllvm"); |
| 579 | CmdArgs.push_back("-enable-machine-outliner"); |
| 580 | |
| 581 | // Outline from linkonceodr functions by default in LTO. |
| 582 | CmdArgs.push_back("-mllvm"); |
| 583 | CmdArgs.push_back("-enable-linkonceodr-outlining"); |
| 584 | } |
| 585 | } else { |
| 586 | // Disable all outlining behaviour if we have mno-outline. We need to do |
| 587 | // this explicitly, because targets which support default outlining will |
| 588 | // try to do work if we don't. |
| 589 | CmdArgs.push_back("-mllvm"); |
| 590 | CmdArgs.push_back("-enable-machine-outliner=never"); |
| 591 | } |
| 592 | } |
| 593 | |
| 594 | // Setup statistics file output. |
| 595 | SmallString<128> StatsFile = |
| 596 | getStatsFileName(Args, Output, Inputs[0], getToolChain().getDriver()); |
| 597 | if (!StatsFile.empty()) { |
| 598 | CmdArgs.push_back("-mllvm"); |
| 599 | CmdArgs.push_back(Args.MakeArgString("-lto-stats-file=" + StatsFile.str())); |
| 600 | } |
| 601 | |
| 602 | // It seems that the 'e' option is completely ignored for dynamic executables |
| 603 | // (the default), and with static executables, the last one wins, as expected. |
| 604 | Args.AddAllArgs(CmdArgs, {options::OPT_d_Flag, options::OPT_s, options::OPT_t, |
| 605 | options::OPT_Z_Flag, options::OPT_u_Group, |
| 606 | options::OPT_e, options::OPT_r}); |
| 607 | |
| 608 | // Forward -ObjC when either -ObjC or -ObjC++ is used, to force loading |
| 609 | // members of static archive libraries which implement Objective-C classes or |
| 610 | // categories. |
| 611 | if (Args.hasArg(options::OPT_ObjC) || Args.hasArg(options::OPT_ObjCXX)) |
| 612 | CmdArgs.push_back("-ObjC"); |
| 613 | |
| 614 | CmdArgs.push_back("-o"); |
| 615 | CmdArgs.push_back(Output.getFilename()); |
| 616 | |
| 617 | if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) |
| 618 | getMachOToolChain().addStartObjectFileArgs(Args, CmdArgs); |
| 619 | |
| 620 | Args.AddAllArgs(CmdArgs, options::OPT_L); |
| 621 | |
| 622 | AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); |
| 623 | // Build the input file for -filelist (list of linker input files) in case we |
| 624 | // need it later |
| 625 | for (const auto &II : Inputs) { |
| 626 | if (!II.isFilename()) { |
| 627 | // This is a linker input argument. |
| 628 | // We cannot mix input arguments and file names in a -filelist input, thus |
| 629 | // we prematurely stop our list (remaining files shall be passed as |
| 630 | // arguments). |
| 631 | if (InputFileList.size() > 0) |
| 632 | break; |
| 633 | |
| 634 | continue; |
| 635 | } |
| 636 | |
| 637 | InputFileList.push_back(II.getFilename()); |
| 638 | } |
| 639 | |
| 640 | if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) |
| 641 | addOpenMPRuntime(CmdArgs, getToolChain(), Args); |
| 642 | |
| 643 | if (isObjCRuntimeLinked(Args) && |
| 644 | !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { |
| 645 | // We use arclite library for both ARC and subscripting support. |
| 646 | getMachOToolChain().AddLinkARCArgs(Args, CmdArgs); |
| 647 | |
| 648 | CmdArgs.push_back("-framework"); |
| 649 | CmdArgs.push_back("Foundation"); |
| 650 | // Link libobj. |
| 651 | CmdArgs.push_back("-lobjc"); |
| 652 | } |
| 653 | |
| 654 | if (LinkingOutput) { |
| 655 | CmdArgs.push_back("-arch_multiple"); |
| 656 | CmdArgs.push_back("-final_output"); |
| 657 | CmdArgs.push_back(LinkingOutput); |
| 658 | } |
| 659 | |
| 660 | if (Args.hasArg(options::OPT_fnested_functions)) |
| 661 | CmdArgs.push_back("-allow_stack_execute"); |
| 662 | |
| 663 | getMachOToolChain().addProfileRTLibs(Args, CmdArgs); |
| 664 | |
| 665 | StringRef Parallelism = getLTOParallelism(Args, getToolChain().getDriver()); |
| 666 | if (!Parallelism.empty()) { |
| 667 | CmdArgs.push_back("-mllvm"); |
| 668 | unsigned NumThreads = |
| 669 | llvm::get_threadpool_strategy(Parallelism)->compute_thread_count(); |
| 670 | CmdArgs.push_back(Args.MakeArgString("-threads=" + Twine(NumThreads))); |
| 671 | } |
| 672 | |
| 673 | if (getToolChain().ShouldLinkCXXStdlib(Args)) |
| 674 | getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); |
| 675 | |
| 676 | bool NoStdOrDefaultLibs = |
| 677 | Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs); |
| 678 | bool ForceLinkBuiltins = Args.hasArg(options::OPT_fapple_link_rtlib); |
| 679 | if (!NoStdOrDefaultLibs || ForceLinkBuiltins) { |
| 680 | // link_ssp spec is empty. |
| 681 | |
| 682 | // If we have both -nostdlib/nodefaultlibs and -fapple-link-rtlib then |
| 683 | // we just want to link the builtins, not the other libs like libSystem. |
| 684 | if (NoStdOrDefaultLibs && ForceLinkBuiltins) { |
| 685 | getMachOToolChain().AddLinkRuntimeLib(Args, CmdArgs, "builtins"); |
| 686 | } else { |
| 687 | // Let the tool chain choose which runtime library to link. |
| 688 | getMachOToolChain().AddLinkRuntimeLibArgs(Args, CmdArgs, |
| 689 | ForceLinkBuiltins); |
| 690 | |
| 691 | // No need to do anything for pthreads. Claim argument to avoid warning. |
| 692 | Args.ClaimAllArgs(options::OPT_pthread); |
| 693 | Args.ClaimAllArgs(options::OPT_pthreads); |
| 694 | } |
| 695 | } |
| 696 | |
| 697 | if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { |
| 698 | // endfile_spec is empty. |
| 699 | } |
| 700 | |
| 701 | Args.AddAllArgs(CmdArgs, options::OPT_T_Group); |
| 702 | Args.AddAllArgs(CmdArgs, options::OPT_F); |
| 703 | |
| 704 | // -iframework should be forwarded as -F. |
| 705 | for (const Arg *A : Args.filtered(options::OPT_iframework)) |
| 706 | CmdArgs.push_back(Args.MakeArgString(std::string("-F") + A->getValue())); |
| 707 | |
| 708 | if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { |
| 709 | if (Arg *A = Args.getLastArg(options::OPT_fveclib)) { |
| 710 | if (A->getValue() == StringRef("Accelerate")) { |
| 711 | CmdArgs.push_back("-framework"); |
| 712 | CmdArgs.push_back("Accelerate"); |
| 713 | } |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | ResponseFileSupport ResponseSupport; |
| 718 | if (Version[0] >= 705 || LinkerIsLLDDarwinNew) { |
| 719 | ResponseSupport = ResponseFileSupport::AtFileUTF8(); |
| 720 | } else { |
| 721 | // For older versions of the linker, use the legacy filelist method instead. |
| 722 | ResponseSupport = {ResponseFileSupport::RF_FileList, llvm::sys::WEM_UTF8, |
| 723 | "-filelist"}; |
| 724 | } |
| 725 | |
| 726 | std::unique_ptr<Command> Cmd = std::make_unique<Command>( |
| 727 | JA, *this, ResponseSupport, Exec, CmdArgs, Inputs, Output); |
| 728 | Cmd->setInputFileList(std::move(InputFileList)); |
| 729 | C.addCommand(std::move(Cmd)); |
| 730 | } |
| 731 | |
| 732 | void darwin::Lipo::ConstructJob(Compilation &C, const JobAction &JA, |
| 733 | const InputInfo &Output, |
| 734 | const InputInfoList &Inputs, |
| 735 | const ArgList &Args, |
| 736 | const char *LinkingOutput) const { |
| 737 | ArgStringList CmdArgs; |
| 738 | |
| 739 | CmdArgs.push_back("-create"); |
| 740 | assert(Output.isFilename() && "Unexpected lipo output.")(static_cast<void> (0)); |
| 741 | |
| 742 | CmdArgs.push_back("-output"); |
| 743 | CmdArgs.push_back(Output.getFilename()); |
| 744 | |
| 745 | for (const auto &II : Inputs) { |
| 746 | assert(II.isFilename() && "Unexpected lipo input.")(static_cast<void> (0)); |
| 747 | CmdArgs.push_back(II.getFilename()); |
| 748 | } |
| 749 | |
| 750 | const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("lipo")); |
| 751 | C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(), |
| 752 | Exec, CmdArgs, Inputs, Output)); |
| 753 | } |
| 754 | |
| 755 | void darwin::Dsymutil::ConstructJob(Compilation &C, const JobAction &JA, |
| 756 | const InputInfo &Output, |
| 757 | const InputInfoList &Inputs, |
| 758 | const ArgList &Args, |
| 759 | const char *LinkingOutput) const { |
| 760 | ArgStringList CmdArgs; |
| 761 | |
| 762 | CmdArgs.push_back("-o"); |
| 763 | CmdArgs.push_back(Output.getFilename()); |
| 764 | |
| 765 | assert(Inputs.size() == 1 && "Unable to handle multiple inputs.")(static_cast<void> (0)); |
| 766 | const InputInfo &Input = Inputs[0]; |
| 767 | assert(Input.isFilename() && "Unexpected dsymutil input.")(static_cast<void> (0)); |
| 768 | CmdArgs.push_back(Input.getFilename()); |
| 769 | |
| 770 | const char *Exec = |
| 771 | Args.MakeArgString(getToolChain().GetProgramPath("dsymutil")); |
| 772 | C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(), |
| 773 | Exec, CmdArgs, Inputs, Output)); |
| 774 | } |
| 775 | |
| 776 | void darwin::VerifyDebug::ConstructJob(Compilation &C, const JobAction &JA, |
| 777 | const InputInfo &Output, |
| 778 | const InputInfoList &Inputs, |
| 779 | const ArgList &Args, |
| 780 | const char *LinkingOutput) const { |
| 781 | ArgStringList CmdArgs; |
| 782 | CmdArgs.push_back("--verify"); |
| 783 | CmdArgs.push_back("--debug-info"); |
| 784 | CmdArgs.push_back("--eh-frame"); |
| 785 | CmdArgs.push_back("--quiet"); |
| 786 | |
| 787 | assert(Inputs.size() == 1 && "Unable to handle multiple inputs.")(static_cast<void> (0)); |
| 788 | const InputInfo &Input = Inputs[0]; |
| 789 | assert(Input.isFilename() && "Unexpected verify input")(static_cast<void> (0)); |
| 790 | |
| 791 | // Grabbing the output of the earlier dsymutil run. |
| 792 | CmdArgs.push_back(Input.getFilename()); |
| 793 | |
| 794 | const char *Exec = |
| 795 | Args.MakeArgString(getToolChain().GetProgramPath("dwarfdump")); |
| 796 | C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(), |
| 797 | Exec, CmdArgs, Inputs, Output)); |
| 798 | } |
| 799 | |
| 800 | MachO::MachO(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) |
| 801 | : ToolChain(D, Triple, Args) { |
| 802 | // We expect 'as', 'ld', etc. to be adjacent to our install dir. |
| 803 | getProgramPaths().push_back(getDriver().getInstalledDir()); |
| 804 | if (getDriver().getInstalledDir() != getDriver().Dir) |
| 805 | getProgramPaths().push_back(getDriver().Dir); |
| 806 | } |
| 807 | |
| 808 | /// Darwin - Darwin tool chain for i386 and x86_64. |
| 809 | Darwin::Darwin(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) |
| 810 | : MachO(D, Triple, Args), TargetInitialized(false), |
| 811 | CudaInstallation(D, Triple, Args), RocmInstallation(D, Triple, Args) {} |
| 812 | |
| 813 | types::ID MachO::LookupTypeForExtension(StringRef Ext) const { |
| 814 | types::ID Ty = ToolChain::LookupTypeForExtension(Ext); |
| 815 | |
| 816 | // Darwin always preprocesses assembly files (unless -x is used explicitly). |
| 817 | if (Ty == types::TY_PP_Asm) |
| 818 | return types::TY_Asm; |
| 819 | |
| 820 | return Ty; |
| 821 | } |
| 822 | |
| 823 | bool MachO::HasNativeLLVMSupport() const { return true; } |
| 824 | |
| 825 | ToolChain::CXXStdlibType Darwin::GetDefaultCXXStdlibType() const { |
| 826 | // Default to use libc++ on OS X 10.9+ and iOS 7+. |
| 827 | if ((isTargetMacOSBased() && !isMacosxVersionLT(10, 9)) || |
| 828 | (isTargetIOSBased() && !isIPhoneOSVersionLT(7, 0)) || |
| 829 | isTargetWatchOSBased()) |
| 830 | return ToolChain::CST_Libcxx; |
| 831 | |
| 832 | return ToolChain::CST_Libstdcxx; |
| 833 | } |
| 834 | |
| 835 | /// Darwin provides an ARC runtime starting in MacOS X 10.7 and iOS 5.0. |
| 836 | ObjCRuntime Darwin::getDefaultObjCRuntime(bool isNonFragile) const { |
| 837 | if (isTargetWatchOSBased()) |
| 838 | return ObjCRuntime(ObjCRuntime::WatchOS, TargetVersion); |
| 839 | if (isTargetIOSBased()) |
| 840 | return ObjCRuntime(ObjCRuntime::iOS, TargetVersion); |
| 841 | if (isNonFragile) |
| 842 | return ObjCRuntime(ObjCRuntime::MacOSX, TargetVersion); |
| 843 | return ObjCRuntime(ObjCRuntime::FragileMacOSX, TargetVersion); |
| 844 | } |
| 845 | |
| 846 | /// Darwin provides a blocks runtime starting in MacOS X 10.6 and iOS 3.2. |
| 847 | bool Darwin::hasBlocksRuntime() const { |
| 848 | if (isTargetWatchOSBased()) |
| 849 | return true; |
| 850 | else if (isTargetIOSBased()) |
| 851 | return !isIPhoneOSVersionLT(3, 2); |
| 852 | else { |
| 853 | assert(isTargetMacOSBased() && "unexpected darwin target")(static_cast<void> (0)); |
| 854 | return !isMacosxVersionLT(10, 6); |
| 855 | } |
| 856 | } |
| 857 | |
| 858 | void Darwin::AddCudaIncludeArgs(const ArgList &DriverArgs, |
| 859 | ArgStringList &CC1Args) const { |
| 860 | CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args); |
| 861 | } |
| 862 | |
| 863 | void Darwin::AddHIPIncludeArgs(const ArgList &DriverArgs, |
| 864 | ArgStringList &CC1Args) const { |
| 865 | RocmInstallation.AddHIPIncludeArgs(DriverArgs, CC1Args); |
| 866 | } |
| 867 | |
| 868 | // This is just a MachO name translation routine and there's no |
| 869 | // way to join this into ARMTargetParser without breaking all |
| 870 | // other assumptions. Maybe MachO should consider standardising |
| 871 | // their nomenclature. |
| 872 | static const char *ArmMachOArchName(StringRef Arch) { |
| 873 | return llvm::StringSwitch<const char *>(Arch) |
| 874 | .Case("armv6k", "armv6") |
| 875 | .Case("armv6m", "armv6m") |
| 876 | .Case("armv5tej", "armv5") |
| 877 | .Case("xscale", "xscale") |
| 878 | .Case("armv4t", "armv4t") |
| 879 | .Case("armv7", "armv7") |
| 880 | .Cases("armv7a", "armv7-a", "armv7") |
| 881 | .Cases("armv7r", "armv7-r", "armv7") |
| 882 | .Cases("armv7em", "armv7e-m", "armv7em") |
| 883 | .Cases("armv7k", "armv7-k", "armv7k") |
| 884 | .Cases("armv7m", "armv7-m", "armv7m") |
| 885 | .Cases("armv7s", "armv7-s", "armv7s") |
| 886 | .Default(nullptr); |
| 887 | } |
| 888 | |
| 889 | static const char *ArmMachOArchNameCPU(StringRef CPU) { |
| 890 | llvm::ARM::ArchKind ArchKind = llvm::ARM::parseCPUArch(CPU); |
| 891 | if (ArchKind == llvm::ARM::ArchKind::INVALID) |
| 892 | return nullptr; |
| 893 | StringRef Arch = llvm::ARM::getArchName(ArchKind); |
| 894 | |
| 895 | // FIXME: Make sure this MachO triple mangling is really necessary. |
| 896 | // ARMv5* normalises to ARMv5. |
| 897 | if (Arch.startswith("armv5")) |
| 898 | Arch = Arch.substr(0, 5); |
| 899 | // ARMv6*, except ARMv6M, normalises to ARMv6. |
| 900 | else if (Arch.startswith("armv6") && !Arch.endswith("6m")) |
| 901 | Arch = Arch.substr(0, 5); |
| 902 | // ARMv7A normalises to ARMv7. |
| 903 | else if (Arch.endswith("v7a")) |
| 904 | Arch = Arch.substr(0, 5); |
| 905 | return Arch.data(); |
| 906 | } |
| 907 | |
| 908 | StringRef MachO::getMachOArchName(const ArgList &Args) const { |
| 909 | switch (getTriple().getArch()) { |
| 910 | default: |
| 911 | return getDefaultUniversalArchName(); |
| 912 | |
| 913 | case llvm::Triple::aarch64_32: |
| 914 | return "arm64_32"; |
| 915 | |
| 916 | case llvm::Triple::aarch64: { |
| 917 | if (getTriple().isArm64e()) |
| 918 | return "arm64e"; |
| 919 | return "arm64"; |
| 920 | } |
| 921 | |
| 922 | case llvm::Triple::thumb: |
| 923 | case llvm::Triple::arm: |
| 924 | if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_march_EQ)) |
| 925 | if (const char *Arch = ArmMachOArchName(A->getValue())) |
| 926 | return Arch; |
| 927 | |
| 928 | if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) |
| 929 | if (const char *Arch = ArmMachOArchNameCPU(A->getValue())) |
| 930 | return Arch; |
| 931 | |
| 932 | return "arm"; |
| 933 | } |
| 934 | } |
| 935 | |
| 936 | Darwin::~Darwin() {} |
| 937 | |
| 938 | MachO::~MachO() {} |
| 939 | |
| 940 | std::string Darwin::ComputeEffectiveClangTriple(const ArgList &Args, |
| 941 | types::ID InputType) const { |
| 942 | llvm::Triple Triple(ComputeLLVMTriple(Args, InputType)); |
| 943 | |
| 944 | // If the target isn't initialized (e.g., an unknown Darwin platform, return |
| 945 | // the default triple). |
| 946 | if (!isTargetInitialized()) |
| 947 | return Triple.getTriple(); |
| 948 | |
| 949 | SmallString<16> Str; |
| 950 | if (isTargetWatchOSBased()) |
| 951 | Str += "watchos"; |
| 952 | else if (isTargetTvOSBased()) |
| 953 | Str += "tvos"; |
| 954 | else if (isTargetIOSBased() || isTargetMacCatalyst()) |
| 955 | Str += "ios"; |
| 956 | else |
| 957 | Str += "macosx"; |
| 958 | Str += getTripleTargetVersion().getAsString(); |
| 959 | Triple.setOSName(Str); |
| 960 | |
| 961 | return Triple.getTriple(); |
| 962 | } |
| 963 | |
| 964 | Tool *MachO::getTool(Action::ActionClass AC) const { |
| 965 | switch (AC) { |
| 966 | case Action::LipoJobClass: |
| 967 | if (!Lipo) |
| 968 | Lipo.reset(new tools::darwin::Lipo(*this)); |
| 969 | return Lipo.get(); |
| 970 | case Action::DsymutilJobClass: |
| 971 | if (!Dsymutil) |
| 972 | Dsymutil.reset(new tools::darwin::Dsymutil(*this)); |
| 973 | return Dsymutil.get(); |
| 974 | case Action::VerifyDebugInfoJobClass: |
| 975 | if (!VerifyDebug) |
| 976 | VerifyDebug.reset(new tools::darwin::VerifyDebug(*this)); |
| 977 | return VerifyDebug.get(); |
| 978 | default: |
| 979 | return ToolChain::getTool(AC); |
| 980 | } |
| 981 | } |
| 982 | |
| 983 | Tool *MachO::buildLinker() const { return new tools::darwin::Linker(*this); } |
| 984 | |
| 985 | Tool *MachO::buildAssembler() const { |
| 986 | return new tools::darwin::Assembler(*this); |
| 987 | } |
| 988 | |
| 989 | DarwinClang::DarwinClang(const Driver &D, const llvm::Triple &Triple, |
| 990 | const ArgList &Args) |
| 991 | : Darwin(D, Triple, Args) {} |
| 992 | |
| 993 | void DarwinClang::addClangWarningOptions(ArgStringList &CC1Args) const { |
| 994 | // Always error about undefined 'TARGET_OS_*' macros. |
| 995 | CC1Args.push_back("-Wundef-prefix=TARGET_OS_"); |
| 996 | CC1Args.push_back("-Werror=undef-prefix"); |
| 997 | |
| 998 | // For modern targets, promote certain warnings to errors. |
| 999 | if (isTargetWatchOSBased() || getTriple().isArch64Bit()) { |
| 1000 | // Always enable -Wdeprecated-objc-isa-usage and promote it |
| 1001 | // to an error. |
| 1002 | CC1Args.push_back("-Wdeprecated-objc-isa-usage"); |
| 1003 | CC1Args.push_back("-Werror=deprecated-objc-isa-usage"); |
| 1004 | |
| 1005 | // For iOS and watchOS, also error about implicit function declarations, |
| 1006 | // as that can impact calling conventions. |
| 1007 | if (!isTargetMacOS()) |
| 1008 | CC1Args.push_back("-Werror=implicit-function-declaration"); |
| 1009 | } |
| 1010 | } |
| 1011 | |
| 1012 | /// Take a path that speculatively points into Xcode and return the |
| 1013 | /// `XCODE/Contents/Developer` path if it is an Xcode path, or an empty path |
| 1014 | /// otherwise. |
| 1015 | static StringRef getXcodeDeveloperPath(StringRef PathIntoXcode) { |
| 1016 | static constexpr llvm::StringLiteral XcodeAppSuffix( |
| 1017 | ".app/Contents/Developer"); |
| 1018 | size_t Index = PathIntoXcode.find(XcodeAppSuffix); |
| 1019 | if (Index == StringRef::npos) |
| 1020 | return ""; |
| 1021 | return PathIntoXcode.take_front(Index + XcodeAppSuffix.size()); |
| 1022 | } |
| 1023 | |
| 1024 | void DarwinClang::AddLinkARCArgs(const ArgList &Args, |
| 1025 | ArgStringList &CmdArgs) const { |
| 1026 | // Avoid linking compatibility stubs on i386 mac. |
| 1027 | if (isTargetMacOSBased() && getArch() == llvm::Triple::x86) |
| 1028 | return; |
| 1029 | if (isTargetAppleSiliconMac()) |
| 1030 | return; |
| 1031 | // ARC runtime is supported everywhere on arm64e. |
| 1032 | if (getTriple().isArm64e()) |
| 1033 | return; |
| 1034 | |
| 1035 | ObjCRuntime runtime = getDefaultObjCRuntime(/*nonfragile*/ true); |
| 1036 | |
| 1037 | if ((runtime.hasNativeARC() || !isObjCAutoRefCount(Args)) && |
| 1038 | runtime.hasSubscripting()) |
| 1039 | return; |
| 1040 | |
| 1041 | SmallString<128> P(getDriver().ClangExecutable); |
| 1042 | llvm::sys::path::remove_filename(P); // 'clang' |
| 1043 | llvm::sys::path::remove_filename(P); // 'bin' |
| 1044 | |
| 1045 | // 'libarclite' usually lives in the same toolchain as 'clang'. However, the |
| 1046 | // Swift open source toolchains for macOS distribute Clang without libarclite. |
| 1047 | // In that case, to allow the linker to find 'libarclite', we point to the |
| 1048 | // 'libarclite' in the XcodeDefault toolchain instead. |
| 1049 | if (getXcodeDeveloperPath(P).empty()) { |
| 1050 | if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { |
| 1051 | // Try to infer the path to 'libarclite' in the toolchain from the |
| 1052 | // specified SDK path. |
| 1053 | StringRef XcodePathForSDK = getXcodeDeveloperPath(A->getValue()); |
| 1054 | if (!XcodePathForSDK.empty()) { |
| 1055 | P = XcodePathForSDK; |
| 1056 | llvm::sys::path::append(P, "Toolchains/XcodeDefault.xctoolchain/usr"); |
| 1057 | } |
| 1058 | } |
| 1059 | } |
| 1060 | |
| 1061 | CmdArgs.push_back("-force_load"); |
| 1062 | llvm::sys::path::append(P, "lib", "arc", "libarclite_"); |
| 1063 | // Mash in the platform. |
| 1064 | if (isTargetWatchOSSimulator()) |
| 1065 | P += "watchsimulator"; |
| 1066 | else if (isTargetWatchOS()) |
| 1067 | P += "watchos"; |
| 1068 | else if (isTargetTvOSSimulator()) |
| 1069 | P += "appletvsimulator"; |
| 1070 | else if (isTargetTvOS()) |
| 1071 | P += "appletvos"; |
| 1072 | else if (isTargetIOSSimulator()) |
| 1073 | P += "iphonesimulator"; |
| 1074 | else if (isTargetIPhoneOS()) |
| 1075 | P += "iphoneos"; |
| 1076 | else |
| 1077 | P += "macosx"; |
| 1078 | P += ".a"; |
| 1079 | |
| 1080 | CmdArgs.push_back(Args.MakeArgString(P)); |
| 1081 | } |
| 1082 | |
| 1083 | unsigned DarwinClang::GetDefaultDwarfVersion() const { |
| 1084 | // Default to use DWARF 2 on OS X 10.10 / iOS 8 and lower. |
| 1085 | if ((isTargetMacOSBased() && isMacosxVersionLT(10, 11)) || |
| 1086 | (isTargetIOSBased() && isIPhoneOSVersionLT(9))) |
| 1087 | return 2; |
| 1088 | return 4; |
| 1089 | } |
| 1090 | |
| 1091 | void MachO::AddLinkRuntimeLib(const ArgList &Args, ArgStringList &CmdArgs, |
| 1092 | StringRef Component, RuntimeLinkOptions Opts, |
| 1093 | bool IsShared) const { |
| 1094 | SmallString<64> DarwinLibName = StringRef("libclang_rt."); |
| 1095 | // an Darwin the builtins compomnent is not in the library name |
| 1096 | if (Component != "builtins") { |
| 1097 | DarwinLibName += Component; |
| 1098 | if (!(Opts & RLO_IsEmbedded)) |
| 1099 | DarwinLibName += "_"; |
| 1100 | } |
| 1101 | |
| 1102 | DarwinLibName += getOSLibraryNameSuffix(); |
| 1103 | DarwinLibName += IsShared ? "_dynamic.dylib" : ".a"; |
| 1104 | SmallString<128> Dir(getDriver().ResourceDir); |
| 1105 | llvm::sys::path::append( |
| 1106 | Dir, "lib", (Opts & RLO_IsEmbedded) ? "macho_embedded" : "darwin"); |
| 1107 | |
| 1108 | SmallString<128> P(Dir); |
| 1109 | llvm::sys::path::append(P, DarwinLibName); |
| 1110 | |
| 1111 | // For now, allow missing resource libraries to support developers who may |
| 1112 | // not have compiler-rt checked out or integrated into their build (unless |
| 1113 | // we explicitly force linking with this library). |
| 1114 | if ((Opts & RLO_AlwaysLink) || getVFS().exists(P)) { |
| 1115 | const char *LibArg = Args.MakeArgString(P); |
| 1116 | CmdArgs.push_back(LibArg); |
| 1117 | } |
| 1118 | |
| 1119 | // Adding the rpaths might negatively interact when other rpaths are involved, |
| 1120 | // so we should make sure we add the rpaths last, after all user-specified |
| 1121 | // rpaths. This is currently true from this place, but we need to be |
| 1122 | // careful if this function is ever called before user's rpaths are emitted. |
| 1123 | if (Opts & RLO_AddRPath) { |
| 1124 | assert(DarwinLibName.endswith(".dylib") && "must be a dynamic library")(static_cast<void> (0)); |
| 1125 | |
| 1126 | // Add @executable_path to rpath to support having the dylib copied with |
| 1127 | // the executable. |
| 1128 | CmdArgs.push_back("-rpath"); |
| 1129 | CmdArgs.push_back("@executable_path"); |
| 1130 | |
| 1131 | // Add the path to the resource dir to rpath to support using the dylib |
| 1132 | // from the default location without copying. |
| 1133 | CmdArgs.push_back("-rpath"); |
| 1134 | CmdArgs.push_back(Args.MakeArgString(Dir)); |
| 1135 | } |
| 1136 | } |
| 1137 | |
| 1138 | StringRef Darwin::getPlatformFamily() const { |
| 1139 | switch (TargetPlatform) { |
| 1140 | case DarwinPlatformKind::MacOS: |
| 1141 | return "MacOSX"; |
| 1142 | case DarwinPlatformKind::IPhoneOS: |
| 1143 | if (TargetEnvironment == MacCatalyst) |
| 1144 | return "MacOSX"; |
| 1145 | return "iPhone"; |
| 1146 | case DarwinPlatformKind::TvOS: |
| 1147 | return "AppleTV"; |
| 1148 | case DarwinPlatformKind::WatchOS: |
| 1149 | return "Watch"; |
| 1150 | } |
| 1151 | llvm_unreachable("Unsupported platform")__builtin_unreachable(); |
| 1152 | } |
| 1153 | |
| 1154 | StringRef Darwin::getSDKName(StringRef isysroot) { |
| 1155 | // Assume SDK has path: SOME_PATH/SDKs/PlatformXX.YY.sdk |
| 1156 | auto BeginSDK = llvm::sys::path::rbegin(isysroot); |
| 1157 | auto EndSDK = llvm::sys::path::rend(isysroot); |
| 1158 | for (auto IT = BeginSDK; IT != EndSDK; ++IT) { |
| 1159 | StringRef SDK = *IT; |
| 1160 | if (SDK.endswith(".sdk")) |
| 1161 | return SDK.slice(0, SDK.size() - 4); |
| 1162 | } |
| 1163 | return ""; |
| 1164 | } |
| 1165 | |
| 1166 | StringRef Darwin::getOSLibraryNameSuffix(bool IgnoreSim) const { |
| 1167 | switch (TargetPlatform) { |
| 1168 | case DarwinPlatformKind::MacOS: |
| 1169 | return "osx"; |
| 1170 | case DarwinPlatformKind::IPhoneOS: |
| 1171 | if (TargetEnvironment == MacCatalyst) |
| 1172 | return "osx"; |
| 1173 | return TargetEnvironment == NativeEnvironment || IgnoreSim ? "ios" |
| 1174 | : "iossim"; |
| 1175 | case DarwinPlatformKind::TvOS: |
| 1176 | return TargetEnvironment == NativeEnvironment || IgnoreSim ? "tvos" |
| 1177 | : "tvossim"; |
| 1178 | case DarwinPlatformKind::WatchOS: |
| 1179 | return TargetEnvironment == NativeEnvironment || IgnoreSim ? "watchos" |
| 1180 | : "watchossim"; |
| 1181 | } |
| 1182 | llvm_unreachable("Unsupported platform")__builtin_unreachable(); |
| 1183 | } |
| 1184 | |
| 1185 | /// Check if the link command contains a symbol export directive. |
| 1186 | static bool hasExportSymbolDirective(const ArgList &Args) { |
| 1187 | for (Arg *A : Args) { |
| 1188 | if (A->getOption().matches(options::OPT_exported__symbols__list)) |
| 1189 | return true; |
| 1190 | if (!A->getOption().matches(options::OPT_Wl_COMMA) && |
| 1191 | !A->getOption().matches(options::OPT_Xlinker)) |
| 1192 | continue; |
| 1193 | if (A->containsValue("-exported_symbols_list") || |
| 1194 | A->containsValue("-exported_symbol")) |
| 1195 | return true; |
| 1196 | } |
| 1197 | return false; |
| 1198 | } |
| 1199 | |
| 1200 | /// Add an export directive for \p Symbol to the link command. |
| 1201 | static void addExportedSymbol(ArgStringList &CmdArgs, const char *Symbol) { |
| 1202 | CmdArgs.push_back("-exported_symbol"); |
| 1203 | CmdArgs.push_back(Symbol); |
| 1204 | } |
| 1205 | |
| 1206 | /// Add a sectalign directive for \p Segment and \p Section to the maximum |
| 1207 | /// expected page size for Darwin. |
| 1208 | /// |
| 1209 | /// On iPhone 6+ the max supported page size is 16K. On macOS, the max is 4K. |
| 1210 | /// Use a common alignment constant (16K) for now, and reduce the alignment on |
| 1211 | /// macOS if it proves important. |
| 1212 | static void addSectalignToPage(const ArgList &Args, ArgStringList &CmdArgs, |
| 1213 | StringRef Segment, StringRef Section) { |
| 1214 | for (const char *A : {"-sectalign", Args.MakeArgString(Segment), |
| 1215 | Args.MakeArgString(Section), "0x4000"}) |
| 1216 | CmdArgs.push_back(A); |
| 1217 | } |
| 1218 | |
| 1219 | void Darwin::addProfileRTLibs(const ArgList &Args, |
| 1220 | ArgStringList &CmdArgs) const { |
| 1221 | if (!needsProfileRT(Args) && !needsGCovInstrumentation(Args)) |
| 1222 | return; |
| 1223 | |
| 1224 | AddLinkRuntimeLib(Args, CmdArgs, "profile", |
| 1225 | RuntimeLinkOptions(RLO_AlwaysLink)); |
| 1226 | |
| 1227 | bool ForGCOV = needsGCovInstrumentation(Args); |
| 1228 | |
| 1229 | // If we have a symbol export directive and we're linking in the profile |
| 1230 | // runtime, automatically export symbols necessary to implement some of the |
| 1231 | // runtime's functionality. |
| 1232 | if (hasExportSymbolDirective(Args)) { |
| 1233 | if (ForGCOV) { |
| 1234 | addExportedSymbol(CmdArgs, "___gcov_dump"); |
| 1235 | addExportedSymbol(CmdArgs, "___gcov_reset"); |
| 1236 | addExportedSymbol(CmdArgs, "_writeout_fn_list"); |
| 1237 | addExportedSymbol(CmdArgs, "_reset_fn_list"); |
| 1238 | } else { |
| 1239 | addExportedSymbol(CmdArgs, "___llvm_profile_filename"); |
| 1240 | addExportedSymbol(CmdArgs, "___llvm_profile_raw_version"); |
| 1241 | } |
| 1242 | addExportedSymbol(CmdArgs, "_lprofDirMode"); |
| 1243 | } |
| 1244 | |
| 1245 | // Align __llvm_prf_{cnts,data} sections to the maximum expected page |
| 1246 | // alignment. This allows profile counters to be mmap()'d to disk. Note that |
| 1247 | // it's not enough to just page-align __llvm_prf_cnts: the following section |
| 1248 | // must also be page-aligned so that its data is not clobbered by mmap(). |
| 1249 | // |
| 1250 | // The section alignment is only needed when continuous profile sync is |
| 1251 | // enabled, but this is expected to be the default in Xcode. Specifying the |
| 1252 | // extra alignment also allows the same binary to be used with/without sync |
| 1253 | // enabled. |
| 1254 | if (!ForGCOV) { |
| 1255 | for (auto IPSK : {llvm::IPSK_cnts, llvm::IPSK_data}) { |
| 1256 | addSectalignToPage( |
| 1257 | Args, CmdArgs, "__DATA", |
| 1258 | llvm::getInstrProfSectionName(IPSK, llvm::Triple::MachO, |
| 1259 | /*AddSegmentInfo=*/false)); |
| 1260 | } |
| 1261 | } |
| 1262 | } |
| 1263 | |
| 1264 | void DarwinClang::AddLinkSanitizerLibArgs(const ArgList &Args, |
| 1265 | ArgStringList &CmdArgs, |
| 1266 | StringRef Sanitizer, |
| 1267 | bool Shared) const { |
| 1268 | auto RLO = RuntimeLinkOptions(RLO_AlwaysLink | (Shared ? RLO_AddRPath : 0U)); |
| 1269 | AddLinkRuntimeLib(Args, CmdArgs, Sanitizer, RLO, Shared); |
| 1270 | } |
| 1271 | |
| 1272 | ToolChain::RuntimeLibType DarwinClang::GetRuntimeLibType( |
| 1273 | const ArgList &Args) const { |
| 1274 | if (Arg* A = Args.getLastArg(options::OPT_rtlib_EQ)) { |
| 1275 | StringRef Value = A->getValue(); |
| 1276 | if (Value != "compiler-rt") |
| 1277 | getDriver().Diag(clang::diag::err_drv_unsupported_rtlib_for_platform) |
| 1278 | << Value << "darwin"; |
| 1279 | } |
| 1280 | |
| 1281 | return ToolChain::RLT_CompilerRT; |
| 1282 | } |
| 1283 | |
| 1284 | void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args, |
| 1285 | ArgStringList &CmdArgs, |
| 1286 | bool ForceLinkBuiltinRT) const { |
| 1287 | // Call once to ensure diagnostic is printed if wrong value was specified |
| 1288 | GetRuntimeLibType(Args); |
| 1289 | |
| 1290 | // Darwin doesn't support real static executables, don't link any runtime |
| 1291 | // libraries with -static. |
| 1292 | if (Args.hasArg(options::OPT_static) || |
| 1293 | Args.hasArg(options::OPT_fapple_kext) || |
| 1294 | Args.hasArg(options::OPT_mkernel)) { |
| 1295 | if (ForceLinkBuiltinRT) |
| 1296 | AddLinkRuntimeLib(Args, CmdArgs, "builtins"); |
| 1297 | return; |
| 1298 | } |
| 1299 | |
| 1300 | // Reject -static-libgcc for now, we can deal with this when and if someone |
| 1301 | // cares. This is useful in situations where someone wants to statically link |
| 1302 | // something like libstdc++, and needs its runtime support routines. |
| 1303 | if (const Arg *A = Args.getLastArg(options::OPT_static_libgcc)) { |
| 1304 | getDriver().Diag(diag::err_drv_unsupported_opt) << A->getAsString(Args); |
| 1305 | return; |
| 1306 | } |
| 1307 | |
| 1308 | const SanitizerArgs &Sanitize = getSanitizerArgs(); |
| 1309 | if (Sanitize.needsAsanRt()) |
| 1310 | AddLinkSanitizerLibArgs(Args, CmdArgs, "asan"); |
| 1311 | if (Sanitize.needsLsanRt()) |
| 1312 | AddLinkSanitizerLibArgs(Args, CmdArgs, "lsan"); |
| 1313 | if (Sanitize.needsUbsanRt()) |
| 1314 | AddLinkSanitizerLibArgs(Args, CmdArgs, |
| 1315 | Sanitize.requiresMinimalRuntime() ? "ubsan_minimal" |
| 1316 | : "ubsan", |
| 1317 | Sanitize.needsSharedRt()); |
| 1318 | if (Sanitize.needsTsanRt()) |
| 1319 | AddLinkSanitizerLibArgs(Args, CmdArgs, "tsan"); |
| 1320 | if (Sanitize.needsFuzzer() && !Args.hasArg(options::OPT_dynamiclib)) { |
| 1321 | AddLinkSanitizerLibArgs(Args, CmdArgs, "fuzzer", /*shared=*/false); |
| 1322 | |
| 1323 | // Libfuzzer is written in C++ and requires libcxx. |
| 1324 | AddCXXStdlibLibArgs(Args, CmdArgs); |
| 1325 | } |
| 1326 | if (Sanitize.needsStatsRt()) { |
| 1327 | AddLinkRuntimeLib(Args, CmdArgs, "stats_client", RLO_AlwaysLink); |
| 1328 | AddLinkSanitizerLibArgs(Args, CmdArgs, "stats"); |
| 1329 | } |
| 1330 | |
| 1331 | const XRayArgs &XRay = getXRayArgs(); |
| 1332 | if (XRay.needsXRayRt()) { |
| 1333 | AddLinkRuntimeLib(Args, CmdArgs, "xray"); |
| 1334 | AddLinkRuntimeLib(Args, CmdArgs, "xray-basic"); |
| 1335 | AddLinkRuntimeLib(Args, CmdArgs, "xray-fdr"); |
| 1336 | } |
| 1337 | |
| 1338 | // Otherwise link libSystem, then the dynamic runtime library, and finally any |
| 1339 | // target specific static runtime library. |
| 1340 | CmdArgs.push_back("-lSystem"); |
| 1341 | |
| 1342 | // Select the dynamic runtime library and the target specific static library. |
| 1343 | if (isTargetIOSBased()) { |
| 1344 | // If we are compiling as iOS / simulator, don't attempt to link libgcc_s.1, |
| 1345 | // it never went into the SDK. |
| 1346 | // Linking against libgcc_s.1 isn't needed for iOS 5.0+ |
| 1347 | if (isIPhoneOSVersionLT(5, 0) && !isTargetIOSSimulator() && |
| 1348 | getTriple().getArch() != llvm::Triple::aarch64) |
| 1349 | CmdArgs.push_back("-lgcc_s.1"); |
| 1350 | } |
| 1351 | AddLinkRuntimeLib(Args, CmdArgs, "builtins"); |
| 1352 | } |
| 1353 | |
| 1354 | /// Returns the most appropriate macOS target version for the current process. |
| 1355 | /// |
| 1356 | /// If the macOS SDK version is the same or earlier than the system version, |
| 1357 | /// then the SDK version is returned. Otherwise the system version is returned. |
| 1358 | static std::string getSystemOrSDKMacOSVersion(StringRef MacOSSDKVersion) { |
| 1359 | unsigned Major, Minor, Micro; |
| 1360 | llvm::Triple SystemTriple(llvm::sys::getProcessTriple()); |
| 1361 | if (!SystemTriple.isMacOSX()) |
| 1362 | return std::string(MacOSSDKVersion); |
| 1363 | SystemTriple.getMacOSXVersion(Major, Minor, Micro); |
| 1364 | VersionTuple SystemVersion(Major, Minor, Micro); |
| 1365 | bool HadExtra; |
| 1366 | if (!Driver::GetReleaseVersion(MacOSSDKVersion, Major, Minor, Micro, |
| 1367 | HadExtra)) |
| 1368 | return std::string(MacOSSDKVersion); |
| 1369 | VersionTuple SDKVersion(Major, Minor, Micro); |
| 1370 | if (SDKVersion > SystemVersion) |
| 1371 | return SystemVersion.getAsString(); |
| 1372 | return std::string(MacOSSDKVersion); |
| 1373 | } |
| 1374 | |
| 1375 | namespace { |
| 1376 | |
| 1377 | /// The Darwin OS that was selected or inferred from arguments / environment. |
| 1378 | struct DarwinPlatform { |
| 1379 | enum SourceKind { |
| 1380 | /// The OS was specified using the -target argument. |
| 1381 | TargetArg, |
| 1382 | /// The OS was specified using the -mtargetos= argument. |
| 1383 | MTargetOSArg, |
| 1384 | /// The OS was specified using the -m<os>-version-min argument. |
| 1385 | OSVersionArg, |
| 1386 | /// The OS was specified using the OS_DEPLOYMENT_TARGET environment. |
| 1387 | DeploymentTargetEnv, |
| 1388 | /// The OS was inferred from the SDK. |
| 1389 | InferredFromSDK, |
| 1390 | /// The OS was inferred from the -arch. |
| 1391 | InferredFromArch |
| 1392 | }; |
| 1393 | |
| 1394 | using DarwinPlatformKind = Darwin::DarwinPlatformKind; |
| 1395 | using DarwinEnvironmentKind = Darwin::DarwinEnvironmentKind; |
| 1396 | |
| 1397 | DarwinPlatformKind getPlatform() const { return Platform; } |
| 1398 | |
| 1399 | DarwinEnvironmentKind getEnvironment() const { return Environment; } |
| 1400 | |
| 1401 | void setEnvironment(DarwinEnvironmentKind Kind) { |
| 1402 | Environment = Kind; |
| 1403 | InferSimulatorFromArch = false; |
| 1404 | } |
| 1405 | |
| 1406 | StringRef getOSVersion() const { |
| 1407 | if (Kind == OSVersionArg) |
| 1408 | return Argument->getValue(); |
| 1409 | return OSVersion; |
| 1410 | } |
| 1411 | |
| 1412 | void setOSVersion(StringRef S) { |
| 1413 | assert(Kind == TargetArg && "Unexpected kind!")(static_cast<void> (0)); |
| 1414 | OSVersion = std::string(S); |
| 1415 | } |
| 1416 | |
| 1417 | bool hasOSVersion() const { return HasOSVersion; } |
| 1418 | |
| 1419 | VersionTuple getNativeTargetVersion() const { |
| 1420 | assert(Environment == DarwinEnvironmentKind::MacCatalyst &&(static_cast<void> (0)) |
| 1421 | "native target version is specified only for Mac Catalyst")(static_cast<void> (0)); |
| 1422 | return NativeTargetVersion; |
| 1423 | } |
| 1424 | |
| 1425 | /// Returns true if the target OS was explicitly specified. |
| 1426 | bool isExplicitlySpecified() const { return Kind <= DeploymentTargetEnv; } |
| 1427 | |
| 1428 | /// Returns true if the simulator environment can be inferred from the arch. |
| 1429 | bool canInferSimulatorFromArch() const { return InferSimulatorFromArch; } |
| 1430 | |
| 1431 | /// Adds the -m<os>-version-min argument to the compiler invocation. |
| 1432 | void addOSVersionMinArgument(DerivedArgList &Args, const OptTable &Opts) { |
| 1433 | if (Argument) |
| 1434 | return; |
| 1435 | assert(Kind != TargetArg && Kind != MTargetOSArg && Kind != OSVersionArg &&(static_cast<void> (0)) |
| 1436 | "Invalid kind")(static_cast<void> (0)); |
| 1437 | options::ID Opt; |
| 1438 | switch (Platform) { |
| 1439 | case DarwinPlatformKind::MacOS: |
| 1440 | Opt = options::OPT_mmacosx_version_min_EQ; |
| 1441 | break; |
| 1442 | case DarwinPlatformKind::IPhoneOS: |
| 1443 | Opt = options::OPT_miphoneos_version_min_EQ; |
| 1444 | break; |
| 1445 | case DarwinPlatformKind::TvOS: |
| 1446 | Opt = options::OPT_mtvos_version_min_EQ; |
| 1447 | break; |
| 1448 | case DarwinPlatformKind::WatchOS: |
| 1449 | Opt = options::OPT_mwatchos_version_min_EQ; |
| 1450 | break; |
| 1451 | } |
| 1452 | Argument = Args.MakeJoinedArg(nullptr, Opts.getOption(Opt), OSVersion); |
| 1453 | Args.append(Argument); |
| 1454 | } |
| 1455 | |
| 1456 | /// Returns the OS version with the argument / environment variable that |
| 1457 | /// specified it. |
| 1458 | std::string getAsString(DerivedArgList &Args, const OptTable &Opts) { |
| 1459 | switch (Kind) { |
| 1460 | case TargetArg: |
| 1461 | case MTargetOSArg: |
| 1462 | case OSVersionArg: |
| 1463 | case InferredFromSDK: |
| 1464 | case InferredFromArch: |
| 1465 | assert(Argument && "OS version argument not yet inferred")(static_cast<void> (0)); |
| 1466 | return Argument->getAsString(Args); |
| 1467 | case DeploymentTargetEnv: |
| 1468 | return (llvm::Twine(EnvVarName) + "=" + OSVersion).str(); |
| 1469 | } |
| 1470 | llvm_unreachable("Unsupported Darwin Source Kind")__builtin_unreachable(); |
| 1471 | } |
| 1472 | |
| 1473 | void setEnvironment(llvm::Triple::EnvironmentType EnvType, |
| 1474 | const VersionTuple &OSVersion, |
| 1475 | const Optional<DarwinSDKInfo> &SDKInfo) { |
| 1476 | switch (EnvType) { |
| 1477 | case llvm::Triple::Simulator: |
| 1478 | Environment = DarwinEnvironmentKind::Simulator; |
| 1479 | break; |
| 1480 | case llvm::Triple::MacABI: { |
| 1481 | Environment = DarwinEnvironmentKind::MacCatalyst; |
| 1482 | // The minimum native macOS target for MacCatalyst is macOS 10.15. |
| 1483 | NativeTargetVersion = VersionTuple(10, 15); |
| 1484 | if (HasOSVersion && SDKInfo) { |
| 1485 | if (const auto *MacCatalystToMacOSMapping = SDKInfo->getVersionMapping( |
| 1486 | DarwinSDKInfo::OSEnvPair::macCatalystToMacOSPair())) { |
| 1487 | if (auto MacOSVersion = MacCatalystToMacOSMapping->map( |
| 1488 | OSVersion, NativeTargetVersion, None)) { |
| 1489 | NativeTargetVersion = *MacOSVersion; |
| 1490 | } |
| 1491 | } |
| 1492 | } |
| 1493 | break; |
| 1494 | } |
| 1495 | default: |
| 1496 | break; |
| 1497 | } |
| 1498 | } |
| 1499 | |
| 1500 | static DarwinPlatform |
| 1501 | createFromTarget(const llvm::Triple &TT, StringRef OSVersion, Arg *A, |
| 1502 | const Optional<DarwinSDKInfo> &SDKInfo) { |
| 1503 | DarwinPlatform Result(TargetArg, getPlatformFromOS(TT.getOS()), OSVersion, |
| 1504 | A); |
| 1505 | unsigned Major, Minor, Micro; |
| 1506 | TT.getOSVersion(Major, Minor, Micro); |
| 1507 | if (Major == 0) |
| 1508 | Result.HasOSVersion = false; |
| 1509 | Result.setEnvironment(TT.getEnvironment(), |
| 1510 | VersionTuple(Major, Minor, Micro), SDKInfo); |
| 1511 | return Result; |
| 1512 | } |
| 1513 | static DarwinPlatform |
| 1514 | createFromMTargetOS(llvm::Triple::OSType OS, VersionTuple OSVersion, |
| 1515 | llvm::Triple::EnvironmentType Environment, Arg *A, |
| 1516 | const Optional<DarwinSDKInfo> &SDKInfo) { |
| 1517 | DarwinPlatform Result(MTargetOSArg, getPlatformFromOS(OS), |
| 1518 | OSVersion.getAsString(), A); |
| 1519 | Result.InferSimulatorFromArch = false; |
| 1520 | Result.setEnvironment(Environment, OSVersion, SDKInfo); |
| 1521 | return Result; |
| 1522 | } |
| 1523 | static DarwinPlatform createOSVersionArg(DarwinPlatformKind Platform, |
| 1524 | Arg *A) { |
| 1525 | return DarwinPlatform(OSVersionArg, Platform, A); |
| 1526 | } |
| 1527 | static DarwinPlatform createDeploymentTargetEnv(DarwinPlatformKind Platform, |
| 1528 | StringRef EnvVarName, |
| 1529 | StringRef Value) { |
| 1530 | DarwinPlatform Result(DeploymentTargetEnv, Platform, Value); |
| 1531 | Result.EnvVarName = EnvVarName; |
| 1532 | return Result; |
| 1533 | } |
| 1534 | static DarwinPlatform createFromSDK(DarwinPlatformKind Platform, |
| 1535 | StringRef Value, |
| 1536 | bool IsSimulator = false) { |
| 1537 | DarwinPlatform Result(InferredFromSDK, Platform, Value); |
| 1538 | if (IsSimulator) |
| 1539 | Result.Environment = DarwinEnvironmentKind::Simulator; |
| 1540 | Result.InferSimulatorFromArch = false; |
| 1541 | return Result; |
| 1542 | } |
| 1543 | static DarwinPlatform createFromArch(llvm::Triple::OSType OS, |
| 1544 | StringRef Value) { |
| 1545 | return DarwinPlatform(InferredFromArch, getPlatformFromOS(OS), Value); |
| 1546 | } |
| 1547 | |
| 1548 | /// Constructs an inferred SDKInfo value based on the version inferred from |
| 1549 | /// the SDK path itself. Only works for values that were created by inferring |
| 1550 | /// the platform from the SDKPath. |
| 1551 | DarwinSDKInfo inferSDKInfo() { |
| 1552 | assert(Kind == InferredFromSDK && "can infer SDK info only")(static_cast<void> (0)); |
| 1553 | llvm::VersionTuple Version; |
| 1554 | bool IsValid = !Version.tryParse(OSVersion); |
| 1555 | (void)IsValid; |
| 1556 | assert(IsValid && "invalid SDK version")(static_cast<void> (0)); |
| 1557 | return DarwinSDKInfo( |
| 1558 | Version, |
| 1559 | /*MaximumDeploymentTarget=*/VersionTuple(Version.getMajor(), 0, 99)); |
| 1560 | } |
| 1561 | |
| 1562 | private: |
| 1563 | DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, Arg *Argument) |
| 1564 | : Kind(Kind), Platform(Platform), Argument(Argument) {} |
| 1565 | DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, StringRef Value, |
| 1566 | Arg *Argument = nullptr) |
| 1567 | : Kind(Kind), Platform(Platform), OSVersion(Value), Argument(Argument) {} |
| 1568 | |
| 1569 | static DarwinPlatformKind getPlatformFromOS(llvm::Triple::OSType OS) { |
| 1570 | switch (OS) { |
| 1571 | case llvm::Triple::Darwin: |
| 1572 | case llvm::Triple::MacOSX: |
| 1573 | return DarwinPlatformKind::MacOS; |
| 1574 | case llvm::Triple::IOS: |
| 1575 | return DarwinPlatformKind::IPhoneOS; |
| 1576 | case llvm::Triple::TvOS: |
| 1577 | return DarwinPlatformKind::TvOS; |
| 1578 | case llvm::Triple::WatchOS: |
| 1579 | return DarwinPlatformKind::WatchOS; |
| 1580 | default: |
| 1581 | llvm_unreachable("Unable to infer Darwin variant")__builtin_unreachable(); |
| 1582 | } |
| 1583 | } |
| 1584 | |
| 1585 | SourceKind Kind; |
| 1586 | DarwinPlatformKind Platform; |
| 1587 | DarwinEnvironmentKind Environment = DarwinEnvironmentKind::NativeEnvironment; |
| 1588 | VersionTuple NativeTargetVersion; |
| 1589 | std::string OSVersion; |
| 1590 | bool HasOSVersion = true, InferSimulatorFromArch = true; |
| 1591 | Arg *Argument; |
| 1592 | StringRef EnvVarName; |
| 1593 | }; |
| 1594 | |
| 1595 | /// Returns the deployment target that's specified using the -m<os>-version-min |
| 1596 | /// argument. |
| 1597 | Optional<DarwinPlatform> |
| 1598 | getDeploymentTargetFromOSVersionArg(DerivedArgList &Args, |
| 1599 | const Driver &TheDriver) { |
| 1600 | Arg *OSXVersion = Args.getLastArg(options::OPT_mmacosx_version_min_EQ); |
| 1601 | Arg *iOSVersion = Args.getLastArg(options::OPT_miphoneos_version_min_EQ, |
| 1602 | options::OPT_mios_simulator_version_min_EQ); |
| 1603 | Arg *TvOSVersion = |
| 1604 | Args.getLastArg(options::OPT_mtvos_version_min_EQ, |
| 1605 | options::OPT_mtvos_simulator_version_min_EQ); |
| 1606 | Arg *WatchOSVersion = |
| 1607 | Args.getLastArg(options::OPT_mwatchos_version_min_EQ, |
| 1608 | options::OPT_mwatchos_simulator_version_min_EQ); |
| 1609 | if (OSXVersion) { |
| 1610 | if (iOSVersion || TvOSVersion || WatchOSVersion) { |
| 1611 | TheDriver.Diag(diag::err_drv_argument_not_allowed_with) |
| 1612 | << OSXVersion->getAsString(Args) |
| 1613 | << (iOSVersion ? iOSVersion |
| 1614 | : TvOSVersion ? TvOSVersion : WatchOSVersion) |
| 1615 | ->getAsString(Args); |
| 1616 | } |
| 1617 | return DarwinPlatform::createOSVersionArg(Darwin::MacOS, OSXVersion); |
| 1618 | } else if (iOSVersion) { |
| 1619 | if (TvOSVersion || WatchOSVersion) { |
| 1620 | TheDriver.Diag(diag::err_drv_argument_not_allowed_with) |
| 1621 | << iOSVersion->getAsString(Args) |
| 1622 | << (TvOSVersion ? TvOSVersion : WatchOSVersion)->getAsString(Args); |
| 1623 | } |
| 1624 | return DarwinPlatform::createOSVersionArg(Darwin::IPhoneOS, iOSVersion); |
| 1625 | } else if (TvOSVersion) { |
| 1626 | if (WatchOSVersion) { |
| 1627 | TheDriver.Diag(diag::err_drv_argument_not_allowed_with) |
| 1628 | << TvOSVersion->getAsString(Args) |
| 1629 | << WatchOSVersion->getAsString(Args); |
| 1630 | } |
| 1631 | return DarwinPlatform::createOSVersionArg(Darwin::TvOS, TvOSVersion); |
| 1632 | } else if (WatchOSVersion) |
| 1633 | return DarwinPlatform::createOSVersionArg(Darwin::WatchOS, WatchOSVersion); |
| 1634 | return None; |
| 1635 | } |
| 1636 | |
| 1637 | /// Returns the deployment target that's specified using the |
| 1638 | /// OS_DEPLOYMENT_TARGET environment variable. |
| 1639 | Optional<DarwinPlatform> |
| 1640 | getDeploymentTargetFromEnvironmentVariables(const Driver &TheDriver, |
| 1641 | const llvm::Triple &Triple) { |
| 1642 | std::string Targets[Darwin::LastDarwinPlatform + 1]; |
| 1643 | const char *EnvVars[] = { |
| 1644 | "MACOSX_DEPLOYMENT_TARGET", |
| 1645 | "IPHONEOS_DEPLOYMENT_TARGET", |
| 1646 | "TVOS_DEPLOYMENT_TARGET", |
| 1647 | "WATCHOS_DEPLOYMENT_TARGET", |
| 1648 | }; |
| 1649 | static_assert(llvm::array_lengthof(EnvVars) == Darwin::LastDarwinPlatform + 1, |
| 1650 | "Missing platform"); |
| 1651 | for (const auto &I : llvm::enumerate(llvm::makeArrayRef(EnvVars))) { |
| 1652 | if (char *Env = ::getenv(I.value())) |
| 1653 | Targets[I.index()] = Env; |
| 1654 | } |
| 1655 | |
| 1656 | // Allow conflicts among OSX and iOS for historical reasons, but choose the |
| 1657 | // default platform. |
| 1658 | if (!Targets[Darwin::MacOS].empty() && |
| 1659 | (!Targets[Darwin::IPhoneOS].empty() || |
| 1660 | !Targets[Darwin::WatchOS].empty() || !Targets[Darwin::TvOS].empty())) { |
| 1661 | if (Triple.getArch() == llvm::Triple::arm || |
| 1662 | Triple.getArch() == llvm::Triple::aarch64 || |
| 1663 | Triple.getArch() == llvm::Triple::thumb) |
| 1664 | Targets[Darwin::MacOS] = ""; |
| 1665 | else |
| 1666 | Targets[Darwin::IPhoneOS] = Targets[Darwin::WatchOS] = |
| 1667 | Targets[Darwin::TvOS] = ""; |
| 1668 | } else { |
| 1669 | // Don't allow conflicts in any other platform. |
| 1670 | unsigned FirstTarget = llvm::array_lengthof(Targets); |
| 1671 | for (unsigned I = 0; I != llvm::array_lengthof(Targets); ++I) { |
| 1672 | if (Targets[I].empty()) |
| 1673 | continue; |
| 1674 | if (FirstTarget == llvm::array_lengthof(Targets)) |
| 1675 | FirstTarget = I; |
| 1676 | else |
| 1677 | TheDriver.Diag(diag::err_drv_conflicting_deployment_targets) |
| 1678 | << Targets[FirstTarget] << Targets[I]; |
| 1679 | } |
| 1680 | } |
| 1681 | |
| 1682 | for (const auto &Target : llvm::enumerate(llvm::makeArrayRef(Targets))) { |
| 1683 | if (!Target.value().empty()) |
| 1684 | return DarwinPlatform::createDeploymentTargetEnv( |
| 1685 | (Darwin::DarwinPlatformKind)Target.index(), EnvVars[Target.index()], |
| 1686 | Target.value()); |
| 1687 | } |
| 1688 | return None; |
| 1689 | } |
| 1690 | |
| 1691 | /// Returns the SDK name without the optional prefix that ends with a '.' or an |
| 1692 | /// empty string otherwise. |
| 1693 | static StringRef dropSDKNamePrefix(StringRef SDKName) { |
| 1694 | size_t PrefixPos = SDKName.find('.'); |
| 1695 | if (PrefixPos == StringRef::npos) |
| 1696 | return ""; |
| 1697 | return SDKName.substr(PrefixPos + 1); |
| 1698 | } |
| 1699 | |
| 1700 | /// Tries to infer the deployment target from the SDK specified by -isysroot |
| 1701 | /// (or SDKROOT). Uses the version specified in the SDKSettings.json file if |
| 1702 | /// it's available. |
| 1703 | Optional<DarwinPlatform> |
| 1704 | inferDeploymentTargetFromSDK(DerivedArgList &Args, |
| 1705 | const Optional<DarwinSDKInfo> &SDKInfo) { |
| 1706 | const Arg *A = Args.getLastArg(options::OPT_isysroot); |
| 1707 | if (!A) |
| 1708 | return None; |
| 1709 | StringRef isysroot = A->getValue(); |
| 1710 | StringRef SDK = Darwin::getSDKName(isysroot); |
| 1711 | if (!SDK.size()) |
| 1712 | return None; |
| 1713 | |
| 1714 | std::string Version; |
| 1715 | if (SDKInfo) { |
| 1716 | // Get the version from the SDKSettings.json if it's available. |
| 1717 | Version = SDKInfo->getVersion().getAsString(); |
| 1718 | } else { |
| 1719 | // Slice the version number out. |
| 1720 | // Version number is between the first and the last number. |
| 1721 | size_t StartVer = SDK.find_first_of("0123456789"); |
| 1722 | size_t EndVer = SDK.find_last_of("0123456789"); |
| 1723 | if (StartVer != StringRef::npos && EndVer > StartVer) |
| 1724 | Version = std::string(SDK.slice(StartVer, EndVer + 1)); |
| 1725 | } |
| 1726 | if (Version.empty()) |
| 1727 | return None; |
| 1728 | |
| 1729 | auto CreatePlatformFromSDKName = |
| 1730 | [&](StringRef SDK) -> Optional<DarwinPlatform> { |
| 1731 | if (SDK.startswith("iPhoneOS") || SDK.startswith("iPhoneSimulator")) |
| 1732 | return DarwinPlatform::createFromSDK( |
| 1733 | Darwin::IPhoneOS, Version, |
| 1734 | /*IsSimulator=*/SDK.startswith("iPhoneSimulator")); |
| 1735 | else if (SDK.startswith("MacOSX")) |
| 1736 | return DarwinPlatform::createFromSDK(Darwin::MacOS, |
| 1737 | getSystemOrSDKMacOSVersion(Version)); |
| 1738 | else if (SDK.startswith("WatchOS") || SDK.startswith("WatchSimulator")) |
| 1739 | return DarwinPlatform::createFromSDK( |
| 1740 | Darwin::WatchOS, Version, |
| 1741 | /*IsSimulator=*/SDK.startswith("WatchSimulator")); |
| 1742 | else if (SDK.startswith("AppleTVOS") || SDK.startswith("AppleTVSimulator")) |
| 1743 | return DarwinPlatform::createFromSDK( |
| 1744 | Darwin::TvOS, Version, |
| 1745 | /*IsSimulator=*/SDK.startswith("AppleTVSimulator")); |
| 1746 | return None; |
| 1747 | }; |
| 1748 | if (auto Result = CreatePlatformFromSDKName(SDK)) |
| 1749 | return Result; |
| 1750 | // The SDK can be an SDK variant with a name like `<prefix>.<platform>`. |
| 1751 | return CreatePlatformFromSDKName(dropSDKNamePrefix(SDK)); |
| 1752 | } |
| 1753 | |
| 1754 | std::string getOSVersion(llvm::Triple::OSType OS, const llvm::Triple &Triple, |
| 1755 | const Driver &TheDriver) { |
| 1756 | unsigned Major, Minor, Micro; |
| 1757 | llvm::Triple SystemTriple(llvm::sys::getProcessTriple()); |
| 1758 | switch (OS) { |
| 1759 | case llvm::Triple::Darwin: |
| 1760 | case llvm::Triple::MacOSX: |
| 1761 | // If there is no version specified on triple, and both host and target are |
| 1762 | // macos, use the host triple to infer OS version. |
| 1763 | if (Triple.isMacOSX() && SystemTriple.isMacOSX() && |
| 1764 | !Triple.getOSMajorVersion()) |
| 1765 | SystemTriple.getMacOSXVersion(Major, Minor, Micro); |
| 1766 | else if (!Triple.getMacOSXVersion(Major, Minor, Micro)) |
| 1767 | TheDriver.Diag(diag::err_drv_invalid_darwin_version) |
| 1768 | << Triple.getOSName(); |
| 1769 | break; |
| 1770 | case llvm::Triple::IOS: |
| 1771 | Triple.getiOSVersion(Major, Minor, Micro); |
| 1772 | break; |
| 1773 | case llvm::Triple::TvOS: |
| 1774 | Triple.getOSVersion(Major, Minor, Micro); |
| 1775 | break; |
| 1776 | case llvm::Triple::WatchOS: |
| 1777 | Triple.getWatchOSVersion(Major, Minor, Micro); |
| 1778 | break; |
| 1779 | default: |
| 1780 | llvm_unreachable("Unexpected OS type")__builtin_unreachable(); |
| 1781 | break; |
| 1782 | } |
| 1783 | |
| 1784 | std::string OSVersion; |
| 1785 | llvm::raw_string_ostream(OSVersion) << Major << '.' << Minor << '.' << Micro; |
| 1786 | return OSVersion; |
| 1787 | } |
| 1788 | |
| 1789 | /// Tries to infer the target OS from the -arch. |
| 1790 | Optional<DarwinPlatform> |
| 1791 | inferDeploymentTargetFromArch(DerivedArgList &Args, const Darwin &Toolchain, |
| 1792 | const llvm::Triple &Triple, |
| 1793 | const Driver &TheDriver) { |
| 1794 | llvm::Triple::OSType OSTy = llvm::Triple::UnknownOS; |
| 1795 | |
| 1796 | StringRef MachOArchName = Toolchain.getMachOArchName(Args); |
| 1797 | if (MachOArchName == "arm64" || MachOArchName == "arm64e") { |
| 1798 | #if __arm64__ |
| 1799 | // A clang running on an Apple Silicon mac defaults |
| 1800 | // to building for mac when building for arm64 rather than |
| 1801 | // defaulting to iOS. |
| 1802 | OSTy = llvm::Triple::MacOSX; |
| 1803 | #else |
| 1804 | OSTy = llvm::Triple::IOS; |
| 1805 | #endif |
| 1806 | } else if (MachOArchName == "armv7" || MachOArchName == "armv7s") |
| 1807 | OSTy = llvm::Triple::IOS; |
| 1808 | else if (MachOArchName == "armv7k" || MachOArchName == "arm64_32") |
| 1809 | OSTy = llvm::Triple::WatchOS; |
| 1810 | else if (MachOArchName != "armv6m" && MachOArchName != "armv7m" && |
| 1811 | MachOArchName != "armv7em") |
| 1812 | OSTy = llvm::Triple::MacOSX; |
| 1813 | |
| 1814 | if (OSTy == llvm::Triple::UnknownOS) |
| 1815 | return None; |
| 1816 | return DarwinPlatform::createFromArch(OSTy, |
| 1817 | getOSVersion(OSTy, Triple, TheDriver)); |
| 1818 | } |
| 1819 | |
| 1820 | /// Returns the deployment target that's specified using the -target option. |
| 1821 | Optional<DarwinPlatform> getDeploymentTargetFromTargetArg( |
| 1822 | DerivedArgList &Args, const llvm::Triple &Triple, const Driver &TheDriver, |
| 1823 | const Optional<DarwinSDKInfo> &SDKInfo) { |
| 1824 | if (!Args.hasArg(options::OPT_target)) |
| 1825 | return None; |
| 1826 | if (Triple.getOS() == llvm::Triple::Darwin || |
| 1827 | Triple.getOS() == llvm::Triple::UnknownOS) |
| 1828 | return None; |
| 1829 | std::string OSVersion = getOSVersion(Triple.getOS(), Triple, TheDriver); |
| 1830 | return DarwinPlatform::createFromTarget( |
| 1831 | Triple, OSVersion, Args.getLastArg(options::OPT_target), SDKInfo); |
| 1832 | } |
| 1833 | |
| 1834 | /// Returns the deployment target that's specified using the -mtargetos option. |
| 1835 | Optional<DarwinPlatform> |
| 1836 | getDeploymentTargetFromMTargetOSArg(DerivedArgList &Args, |
| 1837 | const Driver &TheDriver, |
| 1838 | const Optional<DarwinSDKInfo> &SDKInfo) { |
| 1839 | auto *A = Args.getLastArg(options::OPT_mtargetos_EQ); |
| 1840 | if (!A) |
| 1841 | return None; |
| 1842 | llvm::Triple TT(llvm::Twine("unknown-apple-") + A->getValue()); |
| 1843 | switch (TT.getOS()) { |
| 1844 | case llvm::Triple::MacOSX: |
| 1845 | case llvm::Triple::IOS: |
| 1846 | case llvm::Triple::TvOS: |
| 1847 | case llvm::Triple::WatchOS: |
| 1848 | break; |
| 1849 | default: |
| 1850 | TheDriver.Diag(diag::err_drv_invalid_os_in_arg) |
| 1851 | << TT.getOSName() << A->getAsString(Args); |
| 1852 | return None; |
| 1853 | } |
| 1854 | |
| 1855 | unsigned Major, Minor, Micro; |
| 1856 | TT.getOSVersion(Major, Minor, Micro); |
| 1857 | if (!Major) { |
| 1858 | TheDriver.Diag(diag::err_drv_invalid_version_number) |
| 1859 | << A->getAsString(Args); |
| 1860 | return None; |
| 1861 | } |
| 1862 | return DarwinPlatform::createFromMTargetOS(TT.getOS(), |
| 1863 | VersionTuple(Major, Minor, Micro), |
| 1864 | TT.getEnvironment(), A, SDKInfo); |
| 1865 | } |
| 1866 | |
| 1867 | Optional<DarwinSDKInfo> parseSDKSettings(llvm::vfs::FileSystem &VFS, |
| 1868 | const ArgList &Args, |
| 1869 | const Driver &TheDriver) { |
| 1870 | const Arg *A = Args.getLastArg(options::OPT_isysroot); |
| 1871 | if (!A) |
| 1872 | return None; |
| 1873 | StringRef isysroot = A->getValue(); |
| 1874 | auto SDKInfoOrErr = parseDarwinSDKInfo(VFS, isysroot); |
| 1875 | if (!SDKInfoOrErr) { |
| 1876 | llvm::consumeError(SDKInfoOrErr.takeError()); |
| 1877 | TheDriver.Diag(diag::warn_drv_darwin_sdk_invalid_settings); |
| 1878 | return None; |
| 1879 | } |
| 1880 | return *SDKInfoOrErr; |
| 1881 | } |
| 1882 | |
| 1883 | } // namespace |
| 1884 | |
| 1885 | void Darwin::AddDeploymentTarget(DerivedArgList &Args) const { |
| 1886 | const OptTable &Opts = getDriver().getOpts(); |
| 1887 | |
| 1888 | // Support allowing the SDKROOT environment variable used by xcrun and other |
| 1889 | // Xcode tools to define the default sysroot, by making it the default for |
| 1890 | // isysroot. |
| 1891 | if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { |
| 1892 | // Warn if the path does not exist. |
| 1893 | if (!getVFS().exists(A->getValue())) |
| 1894 | getDriver().Diag(clang::diag::warn_missing_sysroot) << A->getValue(); |
| 1895 | } else { |
| 1896 | if (char *env = ::getenv("SDKROOT")) { |
| 1897 | // We only use this value as the default if it is an absolute path, |
| 1898 | // exists, and it is not the root path. |
| 1899 | if (llvm::sys::path::is_absolute(env) && getVFS().exists(env) && |
| 1900 | StringRef(env) != "/") { |
| 1901 | Args.append(Args.MakeSeparateArg( |
| 1902 | nullptr, Opts.getOption(options::OPT_isysroot), env)); |
| 1903 | } |
| 1904 | } |
| 1905 | } |
| 1906 | |
| 1907 | // Read the SDKSettings.json file for more information, like the SDK version |
| 1908 | // that we can pass down to the compiler. |
| 1909 | SDKInfo = parseSDKSettings(getVFS(), Args, getDriver()); |
| 1910 | |
| 1911 | // The OS and the version can be specified using the -target argument. |
| 1912 | Optional<DarwinPlatform> OSTarget = |
| 1913 | getDeploymentTargetFromTargetArg(Args, getTriple(), getDriver(), SDKInfo); |
| 1914 | if (OSTarget) { |
| 1915 | // Disallow mixing -target and -mtargetos=. |
| 1916 | if (const auto *MTargetOSArg = Args.getLastArg(options::OPT_mtargetos_EQ)) { |
| 1917 | std::string TargetArgStr = OSTarget->getAsString(Args, Opts); |
| 1918 | std::string MTargetOSArgStr = MTargetOSArg->getAsString(Args); |
| 1919 | getDriver().Diag(diag::err_drv_cannot_mix_options) |
| 1920 | << TargetArgStr << MTargetOSArgStr; |
| 1921 | } |
| 1922 | Optional<DarwinPlatform> OSVersionArgTarget = |
| 1923 | getDeploymentTargetFromOSVersionArg(Args, getDriver()); |
| 1924 | if (OSVersionArgTarget) { |
| 1925 | unsigned TargetMajor, TargetMinor, TargetMicro; |
| 1926 | bool TargetExtra; |
| 1927 | unsigned ArgMajor, ArgMinor, ArgMicro; |
| 1928 | bool ArgExtra; |
| 1929 | if (OSTarget->getPlatform() != OSVersionArgTarget->getPlatform() || |
| 1930 | (Driver::GetReleaseVersion(OSTarget->getOSVersion(), TargetMajor, |
| 1931 | TargetMinor, TargetMicro, TargetExtra) && |
| 1932 | Driver::GetReleaseVersion(OSVersionArgTarget->getOSVersion(), |
| 1933 | ArgMajor, ArgMinor, ArgMicro, ArgExtra) && |
| 1934 | (VersionTuple(TargetMajor, TargetMinor, TargetMicro) != |
| 1935 | VersionTuple(ArgMajor, ArgMinor, ArgMicro) || |
| 1936 | TargetExtra != ArgExtra))) { |
| 1937 | // Select the OS version from the -m<os>-version-min argument when |
| 1938 | // the -target does not include an OS version. |
| 1939 | if (OSTarget->getPlatform() == OSVersionArgTarget->getPlatform() && |
| 1940 | !OSTarget->hasOSVersion()) { |
| 1941 | OSTarget->setOSVersion(OSVersionArgTarget->getOSVersion()); |
| 1942 | } else { |
| 1943 | // Warn about -m<os>-version-min that doesn't match the OS version |
| 1944 | // that's specified in the target. |
| 1945 | std::string OSVersionArg = |
| 1946 | OSVersionArgTarget->getAsString(Args, Opts); |
| 1947 | std::string TargetArg = OSTarget->getAsString(Args, Opts); |
| 1948 | getDriver().Diag(clang::diag::warn_drv_overriding_flag_option) |
| 1949 | << OSVersionArg << TargetArg; |
| 1950 | } |
| 1951 | } |
| 1952 | } |
| 1953 | } else if ((OSTarget = getDeploymentTargetFromMTargetOSArg(Args, getDriver(), |
| 1954 | SDKInfo))) { |
| 1955 | // The OS target can be specified using the -mtargetos= argument. |
| 1956 | // Disallow mixing -mtargetos= and -m<os>version-min=. |
| 1957 | Optional<DarwinPlatform> OSVersionArgTarget = |
| 1958 | getDeploymentTargetFromOSVersionArg(Args, getDriver()); |
| 1959 | if (OSVersionArgTarget) { |
| 1960 | std::string MTargetOSArgStr = OSTarget->getAsString(Args, Opts); |
| 1961 | std::string OSVersionArgStr = OSVersionArgTarget->getAsString(Args, Opts); |
| 1962 | getDriver().Diag(diag::err_drv_cannot_mix_options) |
| 1963 | << MTargetOSArgStr << OSVersionArgStr; |
| 1964 | } |
| 1965 | } else { |
| 1966 | // The OS target can be specified using the -m<os>version-min argument. |
| 1967 | OSTarget = getDeploymentTargetFromOSVersionArg(Args, getDriver()); |
| 1968 | // If no deployment target was specified on the command line, check for |
| 1969 | // environment defines. |
| 1970 | if (!OSTarget) { |
| 1971 | OSTarget = |
| 1972 | getDeploymentTargetFromEnvironmentVariables(getDriver(), getTriple()); |
| 1973 | if (OSTarget) { |
| 1974 | // Don't infer simulator from the arch when the SDK is also specified. |
| 1975 | Optional<DarwinPlatform> SDKTarget = |
| 1976 | inferDeploymentTargetFromSDK(Args, SDKInfo); |
| 1977 | if (SDKTarget) |
| 1978 | OSTarget->setEnvironment(SDKTarget->getEnvironment()); |
| 1979 | } |
| 1980 | } |
| 1981 | // If there is no command-line argument to specify the Target version and |
| 1982 | // no environment variable defined, see if we can set the default based |
| 1983 | // on -isysroot using SDKSettings.json if it exists. |
| 1984 | if (!OSTarget) { |
| 1985 | OSTarget = inferDeploymentTargetFromSDK(Args, SDKInfo); |
| 1986 | /// If the target was successfully constructed from the SDK path, try to |
| 1987 | /// infer the SDK info if the SDK doesn't have it. |
| 1988 | if (OSTarget && !SDKInfo) |
| 1989 | SDKInfo = OSTarget->inferSDKInfo(); |
| 1990 | } |
| 1991 | // If no OS targets have been specified, try to guess platform from -target |
| 1992 | // or arch name and compute the version from the triple. |
| 1993 | if (!OSTarget) |
| 1994 | OSTarget = |
| 1995 | inferDeploymentTargetFromArch(Args, *this, getTriple(), getDriver()); |
| 1996 | } |
| 1997 | |
| 1998 | assert(OSTarget && "Unable to infer Darwin variant")(static_cast<void> (0)); |
| 1999 | OSTarget->addOSVersionMinArgument(Args, Opts); |
| 2000 | DarwinPlatformKind Platform = OSTarget->getPlatform(); |
| 2001 | |
| 2002 | unsigned Major, Minor, Micro; |
| 2003 | bool HadExtra; |
| 2004 | // Set the tool chain target information. |
| 2005 | if (Platform == MacOS) { |
| 2006 | if (!Driver::GetReleaseVersion(OSTarget->getOSVersion(), Major, Minor, |
| 2007 | Micro, HadExtra) || |
| 2008 | HadExtra || Major < 10 || Major >= 100 || Minor >= 100 || Micro >= 100) |
| 2009 | getDriver().Diag(diag::err_drv_invalid_version_number) |
| 2010 | << OSTarget->getAsString(Args, Opts); |
| 2011 | } else if (Platform == IPhoneOS) { |
| 2012 | if (!Driver::GetReleaseVersion(OSTarget->getOSVersion(), Major, Minor, |
| 2013 | Micro, HadExtra) || |
| 2014 | HadExtra || Major >= 100 || Minor >= 100 || Micro >= 100) |
| 2015 | getDriver().Diag(diag::err_drv_invalid_version_number) |
| 2016 | << OSTarget->getAsString(Args, Opts); |
| 2017 | ; |
| 2018 | if (OSTarget->getEnvironment() == MacCatalyst && |
| 2019 | (Major < 13 || (Major == 13 && Minor < 1))) { |
| 2020 | getDriver().Diag(diag::err_drv_invalid_version_number) |
| 2021 | << OSTarget->getAsString(Args, Opts); |
| 2022 | Major = 13; |
| 2023 | Minor = 1; |
| 2024 | Micro = 0; |
| 2025 | } |
| 2026 | // For 32-bit targets, the deployment target for iOS has to be earlier than |
| 2027 | // iOS 11. |
| 2028 | if (getTriple().isArch32Bit() && Major >= 11) { |
| 2029 | // If the deployment target is explicitly specified, print a diagnostic. |
| 2030 | if (OSTarget->isExplicitlySpecified()) { |
| 2031 | if (OSTarget->getEnvironment() == MacCatalyst) |
| 2032 | getDriver().Diag(diag::err_invalid_macos_32bit_deployment_target); |
| 2033 | else |
| 2034 | getDriver().Diag(diag::warn_invalid_ios_deployment_target) |
| 2035 | << OSTarget->getAsString(Args, Opts); |
| 2036 | // Otherwise, set it to 10.99.99. |
| 2037 | } else { |
| 2038 | Major = 10; |
| 2039 | Minor = 99; |
| 2040 | Micro = 99; |
| 2041 | } |
| 2042 | } |
| 2043 | } else if (Platform == TvOS) { |
| 2044 | if (!Driver::GetReleaseVersion(OSTarget->getOSVersion(), Major, Minor, |
| 2045 | Micro, HadExtra) || |
| 2046 | HadExtra || Major >= 100 || Minor >= 100 || Micro >= 100) |
| 2047 | getDriver().Diag(diag::err_drv_invalid_version_number) |
| 2048 | << OSTarget->getAsString(Args, Opts); |
| 2049 | } else if (Platform == WatchOS) { |
| 2050 | if (!Driver::GetReleaseVersion(OSTarget->getOSVersion(), Major, Minor, |
| 2051 | Micro, HadExtra) || |
| 2052 | HadExtra || Major >= 10 || Minor >= 100 || Micro >= 100) |
| 2053 | getDriver().Diag(diag::err_drv_invalid_version_number) |
| 2054 | << OSTarget->getAsString(Args, Opts); |
| 2055 | } else |
| 2056 | llvm_unreachable("unknown kind of Darwin platform")__builtin_unreachable(); |
| 2057 | |
| 2058 | DarwinEnvironmentKind Environment = OSTarget->getEnvironment(); |
| 2059 | // Recognize iOS targets with an x86 architecture as the iOS simulator. |
| 2060 | if (Environment == NativeEnvironment && Platform != MacOS && |
| 2061 | OSTarget->canInferSimulatorFromArch() && getTriple().isX86()) |
| 2062 | Environment = Simulator; |
| 2063 | |
| 2064 | VersionTuple NativeTargetVersion; |
| 2065 | if (Environment == MacCatalyst) |
| 2066 | NativeTargetVersion = OSTarget->getNativeTargetVersion(); |
| 2067 | setTarget(Platform, Environment, Major, Minor, Micro, NativeTargetVersion); |
| 2068 | |
| 2069 | if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { |
| 2070 | StringRef SDK = getSDKName(A->getValue()); |
| 2071 | if (SDK.size() > 0) { |
| 2072 | size_t StartVer = SDK.find_first_of("0123456789"); |
| 2073 | StringRef SDKName = SDK.slice(0, StartVer); |
| 2074 | if (!SDKName.startswith(getPlatformFamily()) && |
| 2075 | !dropSDKNamePrefix(SDKName).startswith(getPlatformFamily())) |
| 2076 | getDriver().Diag(diag::warn_incompatible_sysroot) |
| 2077 | << SDKName << getPlatformFamily(); |
| 2078 | } |
| 2079 | } |
| 2080 | } |
| 2081 | |
| 2082 | // Returns the effective header sysroot path to use. This comes either from |
| 2083 | // -isysroot or --sysroot. |
| 2084 | llvm::StringRef DarwinClang::GetHeaderSysroot(const llvm::opt::ArgList &DriverArgs) const { |
| 2085 | if(DriverArgs.hasArg(options::OPT_isysroot)) |
| 2086 | return DriverArgs.getLastArgValue(options::OPT_isysroot); |
| 2087 | if (!getDriver().SysRoot.empty()) |
| 2088 | return getDriver().SysRoot; |
| 2089 | return "/"; |
| 2090 | } |
| 2091 | |
| 2092 | void DarwinClang::AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, |
| 2093 | llvm::opt::ArgStringList &CC1Args) const { |
| 2094 | const Driver &D = getDriver(); |
| 2095 | |
| 2096 | llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs); |
| 2097 | |
| 2098 | bool NoStdInc = DriverArgs.hasArg(options::OPT_nostdinc); |
| 2099 | bool NoStdlibInc = DriverArgs.hasArg(options::OPT_nostdlibinc); |
| 2100 | bool NoBuiltinInc = DriverArgs.hasFlag( |
| 2101 | options::OPT_nobuiltininc, options::OPT_ibuiltininc, /*Default=*/false); |
| 2102 | bool ForceBuiltinInc = DriverArgs.hasFlag( |
| 2103 | options::OPT_ibuiltininc, options::OPT_nobuiltininc, /*Default=*/false); |
| 2104 | |
| 2105 | // Add <sysroot>/usr/local/include |
| 2106 | if (!NoStdInc && !NoStdlibInc) { |
| 2107 | SmallString<128> P(Sysroot); |
| 2108 | llvm::sys::path::append(P, "usr", "local", "include"); |
| 2109 | addSystemInclude(DriverArgs, CC1Args, P); |
| 2110 | } |
| 2111 | |
| 2112 | // Add the Clang builtin headers (<resource>/include) |
| 2113 | if (!(NoStdInc && !ForceBuiltinInc) && !NoBuiltinInc) { |
| 2114 | SmallString<128> P(D.ResourceDir); |
| 2115 | llvm::sys::path::append(P, "include"); |
| 2116 | addSystemInclude(DriverArgs, CC1Args, P); |
| 2117 | } |
| 2118 | |
| 2119 | if (NoStdInc || NoStdlibInc) |
| 2120 | return; |
| 2121 | |
| 2122 | // Check for configure-time C include directories. |
| 2123 | llvm::StringRef CIncludeDirs(C_INCLUDE_DIRS""); |
| 2124 | if (!CIncludeDirs.empty()) { |
| 2125 | llvm::SmallVector<llvm::StringRef, 5> dirs; |
| 2126 | CIncludeDirs.split(dirs, ":"); |
| 2127 | for (llvm::StringRef dir : dirs) { |
| 2128 | llvm::StringRef Prefix = |
| 2129 | llvm::sys::path::is_absolute(dir) ? "" : llvm::StringRef(Sysroot); |
| 2130 | addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir); |
| 2131 | } |
| 2132 | } else { |
| 2133 | // Otherwise, add <sysroot>/usr/include. |
| 2134 | SmallString<128> P(Sysroot); |
| 2135 | llvm::sys::path::append(P, "usr", "include"); |
| 2136 | addExternCSystemInclude(DriverArgs, CC1Args, P.str()); |
| 2137 | } |
| 2138 | } |
| 2139 | |
| 2140 | bool DarwinClang::AddGnuCPlusPlusIncludePaths(const llvm::opt::ArgList &DriverArgs, |
| 2141 | llvm::opt::ArgStringList &CC1Args, |
| 2142 | llvm::SmallString<128> Base, |
| 2143 | llvm::StringRef Version, |
| 2144 | llvm::StringRef ArchDir, |
| 2145 | llvm::StringRef BitDir) const { |
| 2146 | llvm::sys::path::append(Base, Version); |
| 2147 | |
| 2148 | // Add the base dir |
| 2149 | addSystemInclude(DriverArgs, CC1Args, Base); |
| 2150 | |
| 2151 | // Add the multilib dirs |
| 2152 | { |
| 2153 | llvm::SmallString<128> P = Base; |
| 2154 | if (!ArchDir.empty()) |
| 2155 | llvm::sys::path::append(P, ArchDir); |
| 2156 | if (!BitDir.empty()) |
| 2157 | llvm::sys::path::append(P, BitDir); |
| 2158 | addSystemInclude(DriverArgs, CC1Args, P); |
| 2159 | } |
| 2160 | |
| 2161 | // Add the backward dir |
| 2162 | { |
| 2163 | llvm::SmallString<128> P = Base; |
| 2164 | llvm::sys::path::append(P, "backward"); |
| 2165 | addSystemInclude(DriverArgs, CC1Args, P); |
| 2166 | } |
| 2167 | |
| 2168 | return getVFS().exists(Base); |
| 2169 | } |
| 2170 | |
| 2171 | void DarwinClang::AddClangCXXStdlibIncludeArgs( |
| 2172 | const llvm::opt::ArgList &DriverArgs, |
| 2173 | llvm::opt::ArgStringList &CC1Args) const { |
| 2174 | // The implementation from a base class will pass through the -stdlib to |
| 2175 | // CC1Args. |
| 2176 | // FIXME: this should not be necessary, remove usages in the frontend |
| 2177 | // (e.g. HeaderSearchOptions::UseLibcxx) and don't pipe -stdlib. |
| 2178 | // Also check whether this is used for setting library search paths. |
| 2179 | ToolChain::AddClangCXXStdlibIncludeArgs(DriverArgs, CC1Args); |
| 2180 | |
| 2181 | if (DriverArgs.hasArg(options::OPT_nostdlibinc) || |
| 2182 | DriverArgs.hasArg(options::OPT_nostdincxx)) |
| 2183 | return; |
| 2184 | |
| 2185 | llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs); |
| 2186 | |
| 2187 | switch (GetCXXStdlibType(DriverArgs)) { |
| 2188 | case ToolChain::CST_Libcxx: { |
| 2189 | // On Darwin, libc++ can be installed in one of the following two places: |
| 2190 | // 1. Alongside the compiler in <install>/include/c++/v1 |
| 2191 | // 2. In a SDK (or a custom sysroot) in <sysroot>/usr/include/c++/v1 |
| 2192 | // |
| 2193 | // The precendence of paths is as listed above, i.e. we take the first path |
| 2194 | // that exists. Also note that we never include libc++ twice -- we take the |
| 2195 | // first path that exists and don't send the other paths to CC1 (otherwise |
| 2196 | // include_next could break). |
| 2197 | |
| 2198 | // Check for (1) |
| 2199 | // Get from '<install>/bin' to '<install>/include/c++/v1'. |
| 2200 | // Note that InstallBin can be relative, so we use '..' instead of |
| 2201 | // parent_path. |
| 2202 | llvm::SmallString<128> InstallBin = |
| 2203 | llvm::StringRef(getDriver().getInstalledDir()); // <install>/bin |
| 2204 | llvm::sys::path::append(InstallBin, "..", "include", "c++", "v1"); |
| 2205 | if (getVFS().exists(InstallBin)) { |
| 2206 | addSystemInclude(DriverArgs, CC1Args, InstallBin); |
| 2207 | return; |
| 2208 | } else if (DriverArgs.hasArg(options::OPT_v)) { |
| 2209 | llvm::errs() << "ignoring nonexistent directory \"" << InstallBin |
| 2210 | << "\"\n"; |
| 2211 | } |
| 2212 | |
| 2213 | // Otherwise, check for (2) |
| 2214 | llvm::SmallString<128> SysrootUsr = Sysroot; |
| 2215 | llvm::sys::path::append(SysrootUsr, "usr", "include", "c++", "v1"); |
| 2216 | if (getVFS().exists(SysrootUsr)) { |
| 2217 | addSystemInclude(DriverArgs, CC1Args, SysrootUsr); |
| 2218 | return; |
| 2219 | } else if (DriverArgs.hasArg(options::OPT_v)) { |
| 2220 | llvm::errs() << "ignoring nonexistent directory \"" << SysrootUsr |
| 2221 | << "\"\n"; |
| 2222 | } |
| 2223 | |
| 2224 | // Otherwise, don't add any path. |
| 2225 | break; |
| 2226 | } |
| 2227 | |
| 2228 | case ToolChain::CST_Libstdcxx: |
| 2229 | llvm::SmallString<128> UsrIncludeCxx = Sysroot; |
| 2230 | llvm::sys::path::append(UsrIncludeCxx, "usr", "include", "c++"); |
| 2231 | |
| 2232 | llvm::Triple::ArchType arch = getTriple().getArch(); |
| 2233 | bool IsBaseFound = true; |
| 2234 | switch (arch) { |
| 2235 | default: break; |
| 2236 | |
| 2237 | case llvm::Triple::ppc: |
| 2238 | case llvm::Triple::ppc64: |
| 2239 | IsBaseFound = AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
| 2240 | "4.2.1", |
| 2241 | "powerpc-apple-darwin10", |
| 2242 | arch == llvm::Triple::ppc64 ? "ppc64" : ""); |
| 2243 | IsBaseFound |= AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
| 2244 | "4.0.0", "powerpc-apple-darwin10", |
| 2245 | arch == llvm::Triple::ppc64 ? "ppc64" : ""); |
| 2246 | break; |
| 2247 | |
| 2248 | case llvm::Triple::x86: |
| 2249 | case llvm::Triple::x86_64: |
| 2250 | IsBaseFound = AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
| 2251 | "4.2.1", |
| 2252 | "i686-apple-darwin10", |
| 2253 | arch == llvm::Triple::x86_64 ? "x86_64" : ""); |
| 2254 | IsBaseFound |= AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
| 2255 | "4.0.0", "i686-apple-darwin8", |
| 2256 | ""); |
| 2257 | break; |
| 2258 | |
| 2259 | case llvm::Triple::arm: |
| 2260 | case llvm::Triple::thumb: |
| 2261 | IsBaseFound = AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
| 2262 | "4.2.1", |
| 2263 | "arm-apple-darwin10", |
| 2264 | "v7"); |
| 2265 | IsBaseFound |= AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
| 2266 | "4.2.1", |
| 2267 | "arm-apple-darwin10", |
| 2268 | "v6"); |
| 2269 | break; |
| 2270 | |
| 2271 | case llvm::Triple::aarch64: |
| 2272 | IsBaseFound = AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
| 2273 | "4.2.1", |
| 2274 | "arm64-apple-darwin10", |
| 2275 | ""); |
| 2276 | break; |
| 2277 | } |
| 2278 | |
| 2279 | if (!IsBaseFound) { |
| 2280 | getDriver().Diag(diag::warn_drv_libstdcxx_not_found); |
| 2281 | } |
| 2282 | |
| 2283 | break; |
| 2284 | } |
| 2285 | } |
| 2286 | void DarwinClang::AddCXXStdlibLibArgs(const ArgList &Args, |
| 2287 | ArgStringList &CmdArgs) const { |
| 2288 | CXXStdlibType Type = GetCXXStdlibType(Args); |
| 2289 | |
| 2290 | switch (Type) { |
| 2291 | case ToolChain::CST_Libcxx: |
| 2292 | CmdArgs.push_back("-lc++"); |
| 2293 | break; |
| 2294 | |
| 2295 | case ToolChain::CST_Libstdcxx: |
| 2296 | // Unfortunately, -lstdc++ doesn't always exist in the standard search path; |
| 2297 | // it was previously found in the gcc lib dir. However, for all the Darwin |
| 2298 | // platforms we care about it was -lstdc++.6, so we search for that |
| 2299 | // explicitly if we can't see an obvious -lstdc++ candidate. |
| 2300 | |
| 2301 | // Check in the sysroot first. |
| 2302 | if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { |
| 2303 | SmallString<128> P(A->getValue()); |
| 2304 | llvm::sys::path::append(P, "usr", "lib", "libstdc++.dylib"); |
| 2305 | |
| 2306 | if (!getVFS().exists(P)) { |
| 2307 | llvm::sys::path::remove_filename(P); |
| 2308 | llvm::sys::path::append(P, "libstdc++.6.dylib"); |
| 2309 | if (getVFS().exists(P)) { |
| 2310 | CmdArgs.push_back(Args.MakeArgString(P)); |
| 2311 | return; |
| 2312 | } |
| 2313 | } |
| 2314 | } |
| 2315 | |
| 2316 | // Otherwise, look in the root. |
| 2317 | // FIXME: This should be removed someday when we don't have to care about |
| 2318 | // 10.6 and earlier, where /usr/lib/libstdc++.dylib does not exist. |
| 2319 | if (!getVFS().exists("/usr/lib/libstdc++.dylib") && |
| 2320 | getVFS().exists("/usr/lib/libstdc++.6.dylib")) { |
| 2321 | CmdArgs.push_back("/usr/lib/libstdc++.6.dylib"); |
| 2322 | return; |
| 2323 | } |
| 2324 | |
| 2325 | // Otherwise, let the linker search. |
| 2326 | CmdArgs.push_back("-lstdc++"); |
| 2327 | break; |
| 2328 | } |
| 2329 | } |
| 2330 | |
| 2331 | void DarwinClang::AddCCKextLibArgs(const ArgList &Args, |
| 2332 | ArgStringList &CmdArgs) const { |
| 2333 | // For Darwin platforms, use the compiler-rt-based support library |
| 2334 | // instead of the gcc-provided one (which is also incidentally |
| 2335 | // only present in the gcc lib dir, which makes it hard to find). |
| 2336 | |
| 2337 | SmallString<128> P(getDriver().ResourceDir); |
| 2338 | llvm::sys::path::append(P, "lib", "darwin"); |
| 2339 | |
| 2340 | // Use the newer cc_kext for iOS ARM after 6.0. |
| 2341 | if (isTargetWatchOS()) { |
| 2342 | llvm::sys::path::append(P, "libclang_rt.cc_kext_watchos.a"); |
| 2343 | } else if (isTargetTvOS()) { |
| 2344 | llvm::sys::path::append(P, "libclang_rt.cc_kext_tvos.a"); |
| 2345 | } else if (isTargetIPhoneOS()) { |
| 2346 | llvm::sys::path::append(P, "libclang_rt.cc_kext_ios.a"); |
| 2347 | } else { |
| 2348 | llvm::sys::path::append(P, "libclang_rt.cc_kext.a"); |
| 2349 | } |
| 2350 | |
| 2351 | // For now, allow missing resource libraries to support developers who may |
| 2352 | // not have compiler-rt checked out or integrated into their build. |
| 2353 | if (getVFS().exists(P)) |
| 2354 | CmdArgs.push_back(Args.MakeArgString(P)); |
| 2355 | } |
| 2356 | |
| 2357 | DerivedArgList *MachO::TranslateArgs(const DerivedArgList &Args, |
| 2358 | StringRef BoundArch, |
| 2359 | Action::OffloadKind) const { |
| 2360 | DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs()); |
| 2361 | const OptTable &Opts = getDriver().getOpts(); |
| 2362 | |
| 2363 | // FIXME: We really want to get out of the tool chain level argument |
| 2364 | // translation business, as it makes the driver functionality much |
| 2365 | // more opaque. For now, we follow gcc closely solely for the |
| 2366 | // purpose of easily achieving feature parity & testability. Once we |
| 2367 | // have something that works, we should reevaluate each translation |
| 2368 | // and try to push it down into tool specific logic. |
| 2369 | |
| 2370 | for (Arg *A : Args) { |
| 2371 | if (A->getOption().matches(options::OPT_Xarch__)) { |
| 2372 | // Skip this argument unless the architecture matches either the toolchain |
| 2373 | // triple arch, or the arch being bound. |
| 2374 | llvm::Triple::ArchType XarchArch = |
| 2375 | tools::darwin::getArchTypeForMachOArchName(A->getValue(0)); |
| 2376 | if (!(XarchArch == getArch() || |
| 2377 | (!BoundArch.empty() && |
| 2378 | XarchArch == |
| 2379 | tools::darwin::getArchTypeForMachOArchName(BoundArch)))) |
| 2380 | continue; |
| 2381 | |
| 2382 | Arg *OriginalArg = A; |
| 2383 | TranslateXarchArgs(Args, A, DAL); |
| 2384 | |
| 2385 | // Linker input arguments require custom handling. The problem is that we |
| 2386 | // have already constructed the phase actions, so we can not treat them as |
| 2387 | // "input arguments". |
| 2388 | if (A->getOption().hasFlag(options::LinkerInput)) { |
| 2389 | // Convert the argument into individual Zlinker_input_args. |
| 2390 | for (const char *Value : A->getValues()) { |
| 2391 | DAL->AddSeparateArg( |
| 2392 | OriginalArg, Opts.getOption(options::OPT_Zlinker_input), Value); |
| 2393 | } |
| 2394 | continue; |
| 2395 | } |
| 2396 | } |
| 2397 | |
| 2398 | // Sob. These is strictly gcc compatible for the time being. Apple |
| 2399 | // gcc translates options twice, which means that self-expanding |
| 2400 | // options add duplicates. |
| 2401 | switch ((options::ID)A->getOption().getID()) { |
| 2402 | default: |
| 2403 | DAL->append(A); |
| 2404 | break; |
| 2405 | |
| 2406 | case options::OPT_mkernel: |
| 2407 | case options::OPT_fapple_kext: |
| 2408 | DAL->append(A); |
| 2409 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_static)); |
| 2410 | break; |
| 2411 | |
| 2412 | case options::OPT_dependency_file: |
| 2413 | DAL->AddSeparateArg(A, Opts.getOption(options::OPT_MF), A->getValue()); |
| 2414 | break; |
| 2415 | |
| 2416 | case options::OPT_gfull: |
| 2417 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); |
| 2418 | DAL->AddFlagArg( |
| 2419 | A, Opts.getOption(options::OPT_fno_eliminate_unused_debug_symbols)); |
| 2420 | break; |
| 2421 | |
| 2422 | case options::OPT_gused: |
| 2423 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); |
| 2424 | DAL->AddFlagArg( |
| 2425 | A, Opts.getOption(options::OPT_feliminate_unused_debug_symbols)); |
| 2426 | break; |
| 2427 | |
| 2428 | case options::OPT_shared: |
| 2429 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_dynamiclib)); |
| 2430 | break; |
| 2431 | |
| 2432 | case options::OPT_fconstant_cfstrings: |
| 2433 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_mconstant_cfstrings)); |
| 2434 | break; |
| 2435 | |
| 2436 | case options::OPT_fno_constant_cfstrings: |
| 2437 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_constant_cfstrings)); |
| 2438 | break; |
| 2439 | |
| 2440 | case options::OPT_Wnonportable_cfstrings: |
| 2441 | DAL->AddFlagArg(A, |
| 2442 | Opts.getOption(options::OPT_mwarn_nonportable_cfstrings)); |
| 2443 | break; |
| 2444 | |
| 2445 | case options::OPT_Wno_nonportable_cfstrings: |
| 2446 | DAL->AddFlagArg( |
| 2447 | A, Opts.getOption(options::OPT_mno_warn_nonportable_cfstrings)); |
| 2448 | break; |
| 2449 | |
| 2450 | case options::OPT_fpascal_strings: |
| 2451 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_mpascal_strings)); |
| 2452 | break; |
| 2453 | |
| 2454 | case options::OPT_fno_pascal_strings: |
| 2455 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_pascal_strings)); |
| 2456 | break; |
| 2457 | } |
| 2458 | } |
| 2459 | |
| 2460 | // Add the arch options based on the particular spelling of -arch, to match |
| 2461 | // how the driver driver works. |
| 2462 | if (!BoundArch.empty()) { |
| 2463 | StringRef Name = BoundArch; |
| 2464 | const Option MCpu = Opts.getOption(options::OPT_mcpu_EQ); |
| 2465 | const Option MArch = Opts.getOption(clang::driver::options::OPT_march_EQ); |
| 2466 | |
| 2467 | // This code must be kept in sync with LLVM's getArchTypeForDarwinArch, |
| 2468 | // which defines the list of which architectures we accept. |
| 2469 | if (Name == "ppc") |
| 2470 | ; |
| 2471 | else if (Name == "ppc601") |
| 2472 | DAL->AddJoinedArg(nullptr, MCpu, "601"); |
| 2473 | else if (Name == "ppc603") |
| 2474 | DAL->AddJoinedArg(nullptr, MCpu, "603"); |
| 2475 | else if (Name == "ppc604") |
| 2476 | DAL->AddJoinedArg(nullptr, MCpu, "604"); |
| 2477 | else if (Name == "ppc604e") |
| 2478 | DAL->AddJoinedArg(nullptr, MCpu, "604e"); |
| 2479 | else if (Name == "ppc750") |
| 2480 | DAL->AddJoinedArg(nullptr, MCpu, "750"); |
| 2481 | else if (Name == "ppc7400") |
| 2482 | DAL->AddJoinedArg(nullptr, MCpu, "7400"); |
| 2483 | else if (Name == "ppc7450") |
| 2484 | DAL->AddJoinedArg(nullptr, MCpu, "7450"); |
| 2485 | else if (Name == "ppc970") |
| 2486 | DAL->AddJoinedArg(nullptr, MCpu, "970"); |
| 2487 | |
| 2488 | else if (Name == "ppc64" || Name == "ppc64le") |
| 2489 | DAL->AddFlagArg(nullptr, Opts.getOption(options::OPT_m64)); |
| 2490 | |
| 2491 | else if (Name == "i386") |
| 2492 | ; |
| 2493 | else if (Name == "i486") |
| 2494 | DAL->AddJoinedArg(nullptr, MArch, "i486"); |
| 2495 | else if (Name == "i586") |
| 2496 | DAL->AddJoinedArg(nullptr, MArch, "i586"); |
| 2497 | else if (Name == "i686") |
| 2498 | DAL->AddJoinedArg(nullptr, MArch, "i686"); |
| 2499 | else if (Name == "pentium") |
| 2500 | DAL->AddJoinedArg(nullptr, MArch, "pentium"); |
| 2501 | else if (Name == "pentium2") |
| 2502 | DAL->AddJoinedArg(nullptr, MArch, "pentium2"); |
| 2503 | else if (Name == "pentpro") |
| 2504 | DAL->AddJoinedArg(nullptr, MArch, "pentiumpro"); |
| 2505 | else if (Name == "pentIIm3") |
| 2506 | DAL->AddJoinedArg(nullptr, MArch, "pentium2"); |
| 2507 | |
| 2508 | else if (Name == "x86_64" || Name == "x86_64h") |
| 2509 | DAL->AddFlagArg(nullptr, Opts.getOption(options::OPT_m64)); |
| 2510 | |
| 2511 | else if (Name == "arm") |
| 2512 | DAL->AddJoinedArg(nullptr, MArch, "armv4t"); |
| 2513 | else if (Name == "armv4t") |
| 2514 | DAL->AddJoinedArg(nullptr, MArch, "armv4t"); |
| 2515 | else if (Name == "armv5") |
| 2516 | DAL->AddJoinedArg(nullptr, MArch, "armv5tej"); |
| 2517 | else if (Name == "xscale") |
| 2518 | DAL->AddJoinedArg(nullptr, MArch, "xscale"); |
| 2519 | else if (Name == "armv6") |
| 2520 | DAL->AddJoinedArg(nullptr, MArch, "armv6k"); |
| 2521 | else if (Name == "armv6m") |
| 2522 | DAL->AddJoinedArg(nullptr, MArch, "armv6m"); |
| 2523 | else if (Name == "armv7") |
| 2524 | DAL->AddJoinedArg(nullptr, MArch, "armv7a"); |
| 2525 | else if (Name == "armv7em") |
| 2526 | DAL->AddJoinedArg(nullptr, MArch, "armv7em"); |
| 2527 | else if (Name == "armv7k") |
| 2528 | DAL->AddJoinedArg(nullptr, MArch, "armv7k"); |
| 2529 | else if (Name == "armv7m") |
| 2530 | DAL->AddJoinedArg(nullptr, MArch, "armv7m"); |
| 2531 | else if (Name == "armv7s") |
| 2532 | DAL->AddJoinedArg(nullptr, MArch, "armv7s"); |
| 2533 | } |
| 2534 | |
| 2535 | return DAL; |
| 2536 | } |
| 2537 | |
| 2538 | void MachO::AddLinkRuntimeLibArgs(const ArgList &Args, |
| 2539 | ArgStringList &CmdArgs, |
| 2540 | bool ForceLinkBuiltinRT) const { |
| 2541 | // Embedded targets are simple at the moment, not supporting sanitizers and |
| 2542 | // with different libraries for each member of the product { static, PIC } x |
| 2543 | // { hard-float, soft-float } |
| 2544 | llvm::SmallString<32> CompilerRT = StringRef(""); |
| 2545 | CompilerRT += |
| 2546 | (tools::arm::getARMFloatABI(*this, Args) == tools::arm::FloatABI::Hard) |
| 2547 | ? "hard" |
| 2548 | : "soft"; |
| 2549 | CompilerRT += Args.hasArg(options::OPT_fPIC) ? "_pic" : "_static"; |
| 2550 | |
| 2551 | AddLinkRuntimeLib(Args, CmdArgs, CompilerRT, RLO_IsEmbedded); |
| 2552 | } |
| 2553 | |
| 2554 | bool Darwin::isAlignedAllocationUnavailable() const { |
| 2555 | llvm::Triple::OSType OS; |
| 2556 | |
| 2557 | if (isTargetMacCatalyst()) |
| 2558 | return TargetVersion < alignedAllocMinVersion(llvm::Triple::MacOSX); |
| 2559 | switch (TargetPlatform) { |
| 2560 | case MacOS: // Earlier than 10.13. |
| 2561 | OS = llvm::Triple::MacOSX; |
| 2562 | break; |
| 2563 | case IPhoneOS: |
| 2564 | OS = llvm::Triple::IOS; |
| 2565 | break; |
| 2566 | case TvOS: // Earlier than 11.0. |
| 2567 | OS = llvm::Triple::TvOS; |
| 2568 | break; |
| 2569 | case WatchOS: // Earlier than 4.0. |
| 2570 | OS = llvm::Triple::WatchOS; |
| 2571 | break; |
| 2572 | } |
| 2573 | |
| 2574 | return TargetVersion < alignedAllocMinVersion(OS); |
| 2575 | } |
| 2576 | |
| 2577 | void Darwin::addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, |
| 2578 | llvm::opt::ArgStringList &CC1Args, |
| 2579 | Action::OffloadKind DeviceOffloadKind) const { |
| 2580 | // Pass "-faligned-alloc-unavailable" only when the user hasn't manually |
| 2581 | // enabled or disabled aligned allocations. |
| 2582 | if (!DriverArgs.hasArgNoClaim(options::OPT_faligned_allocation, |
| 2583 | options::OPT_fno_aligned_allocation) && |
| 2584 | isAlignedAllocationUnavailable()) |
| 2585 | CC1Args.push_back("-faligned-alloc-unavailable"); |
| 2586 | |
| 2587 | if (SDKInfo) { |
| 2588 | /// Pass the SDK version to the compiler when the SDK information is |
| 2589 | /// available. |
| 2590 | auto EmitTargetSDKVersionArg = [&](const VersionTuple &V) { |
| 2591 | std::string Arg; |
| 2592 | llvm::raw_string_ostream OS(Arg); |
| 2593 | OS << "-target-sdk-version=" << V; |
| 2594 | CC1Args.push_back(DriverArgs.MakeArgString(OS.str())); |
| 2595 | }; |
| 2596 | |
| 2597 | if (isTargetMacCatalyst()) { |
| 2598 | if (const auto *MacOStoMacCatalystMapping = SDKInfo->getVersionMapping( |
| 2599 | DarwinSDKInfo::OSEnvPair::macOStoMacCatalystPair())) { |
| 2600 | Optional<VersionTuple> SDKVersion = MacOStoMacCatalystMapping->map( |
| 2601 | SDKInfo->getVersion(), minimumMacCatalystDeploymentTarget(), None); |
| 2602 | EmitTargetSDKVersionArg( |
| 2603 | SDKVersion ? *SDKVersion : minimumMacCatalystDeploymentTarget()); |
| 2604 | } |
| 2605 | } else { |
| 2606 | EmitTargetSDKVersionArg(SDKInfo->getVersion()); |
| 2607 | } |
| 2608 | } |
| 2609 | |
| 2610 | // Enable compatibility mode for NSItemProviderCompletionHandler in |
| 2611 | // Foundation/NSItemProvider.h. |
| 2612 | CC1Args.push_back("-fcompatibility-qualified-id-block-type-checking"); |
| 2613 | |
| 2614 | // Give static local variables in inline functions hidden visibility when |
| 2615 | // -fvisibility-inlines-hidden is enabled. |
| 2616 | if (!DriverArgs.getLastArgNoClaim( |
| 2617 | options::OPT_fvisibility_inlines_hidden_static_local_var, |
| 2618 | options::OPT_fno_visibility_inlines_hidden_static_local_var)) |
| 2619 | CC1Args.push_back("-fvisibility-inlines-hidden-static-local-var"); |
| 2620 | } |
| 2621 | |
| 2622 | DerivedArgList * |
| 2623 | Darwin::TranslateArgs(const DerivedArgList &Args, StringRef BoundArch, |
| 2624 | Action::OffloadKind DeviceOffloadKind) const { |
| 2625 | // First get the generic Apple args, before moving onto Darwin-specific ones. |
| 2626 | DerivedArgList *DAL = |
| 2627 | MachO::TranslateArgs(Args, BoundArch, DeviceOffloadKind); |
| 2628 | const OptTable &Opts = getDriver().getOpts(); |
| 2629 | |
| 2630 | // If no architecture is bound, none of the translations here are relevant. |
| 2631 | if (BoundArch.empty()) |
| 2632 | return DAL; |
| 2633 | |
| 2634 | // Add an explicit version min argument for the deployment target. We do this |
| 2635 | // after argument translation because -Xarch_ arguments may add a version min |
| 2636 | // argument. |
| 2637 | AddDeploymentTarget(*DAL); |
| 2638 | |
| 2639 | // For iOS 6, undo the translation to add -static for -mkernel/-fapple-kext. |
| 2640 | // FIXME: It would be far better to avoid inserting those -static arguments, |
| 2641 | // but we can't check the deployment target in the translation code until |
| 2642 | // it is set here. |
| 2643 | if (isTargetWatchOSBased() || |
| 2644 | (isTargetIOSBased() && !isIPhoneOSVersionLT(6, 0))) { |
| 2645 | for (ArgList::iterator it = DAL->begin(), ie = DAL->end(); it != ie; ) { |
| 2646 | Arg *A = *it; |
| 2647 | ++it; |
| 2648 | if (A->getOption().getID() != options::OPT_mkernel && |
| 2649 | A->getOption().getID() != options::OPT_fapple_kext) |
| 2650 | continue; |
| 2651 | assert(it != ie && "unexpected argument translation")(static_cast<void> (0)); |
| 2652 | A = *it; |
Value stored to 'A' is never read | |
| 2653 | assert(A->getOption().getID() == options::OPT_static &&(static_cast<void> (0)) |
| 2654 | "missing expected -static argument")(static_cast<void> (0)); |
| 2655 | *it = nullptr; |
| 2656 | ++it; |
| 2657 | } |
| 2658 | } |
| 2659 | |
| 2660 | if (!Args.getLastArg(options::OPT_stdlib_EQ) && |
| 2661 | GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) |
| 2662 | DAL->AddJoinedArg(nullptr, Opts.getOption(options::OPT_stdlib_EQ), |
| 2663 | "libc++"); |
| 2664 | |
| 2665 | // Validate the C++ standard library choice. |
| 2666 | CXXStdlibType Type = GetCXXStdlibType(*DAL); |
| 2667 | if (Type == ToolChain::CST_Libcxx) { |
| 2668 | // Check whether the target provides libc++. |
| 2669 | StringRef where; |
| 2670 | |
| 2671 | // Complain about targeting iOS < 5.0 in any way. |
| 2672 | if (isTargetIOSBased() && isIPhoneOSVersionLT(5, 0)) |
| 2673 | where = "iOS 5.0"; |
| 2674 | |
| 2675 | if (where != StringRef()) { |
| 2676 | getDriver().Diag(clang::diag::err_drv_invalid_libcxx_deployment) << where; |
| 2677 | } |
| 2678 | } |
| 2679 | |
| 2680 | auto Arch = tools::darwin::getArchTypeForMachOArchName(BoundArch); |
| 2681 | if ((Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)) { |
| 2682 | if (Args.hasFlag(options::OPT_fomit_frame_pointer, |
| 2683 | options::OPT_fno_omit_frame_pointer, false)) |
| 2684 | getDriver().Diag(clang::diag::warn_drv_unsupported_opt_for_target) |
| 2685 | << "-fomit-frame-pointer" << BoundArch; |
| 2686 | } |
| 2687 | |
| 2688 | return DAL; |
| 2689 | } |
| 2690 | |
| 2691 | bool MachO::IsUnwindTablesDefault(const ArgList &Args) const { |
| 2692 | // Unwind tables are not emitted if -fno-exceptions is supplied (except when |
| 2693 | // targeting x86_64). |
| 2694 | return getArch() == llvm::Triple::x86_64 || |
| 2695 | (GetExceptionModel(Args) != llvm::ExceptionHandling::SjLj && |
| 2696 | Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, |
| 2697 | true)); |
| 2698 | } |
| 2699 | |
| 2700 | bool MachO::UseDwarfDebugFlags() const { |
| 2701 | if (const char *S = ::getenv("RC_DEBUG_OPTIONS")) |
| 2702 | return S[0] != '\0'; |
| 2703 | return false; |
| 2704 | } |
| 2705 | |
| 2706 | llvm::ExceptionHandling Darwin::GetExceptionModel(const ArgList &Args) const { |
| 2707 | // Darwin uses SjLj exceptions on ARM. |
| 2708 | if (getTriple().getArch() != llvm::Triple::arm && |
| 2709 | getTriple().getArch() != llvm::Triple::thumb) |
| 2710 | return llvm::ExceptionHandling::None; |
| 2711 | |
| 2712 | // Only watchOS uses the new DWARF/Compact unwinding method. |
| 2713 | llvm::Triple Triple(ComputeLLVMTriple(Args)); |
| 2714 | if (Triple.isWatchABI()) |
| 2715 | return llvm::ExceptionHandling::DwarfCFI; |
| 2716 | |
| 2717 | return llvm::ExceptionHandling::SjLj; |
| 2718 | } |
| 2719 | |
| 2720 | bool Darwin::SupportsEmbeddedBitcode() const { |
| 2721 | assert(TargetInitialized && "Target not initialized!")(static_cast<void> (0)); |
| 2722 | if (isTargetIPhoneOS() && isIPhoneOSVersionLT(6, 0)) |
| 2723 | return false; |
| 2724 | return true; |
| 2725 | } |
| 2726 | |
| 2727 | bool MachO::isPICDefault() const { return true; } |
| 2728 | |
| 2729 | bool MachO::isPIEDefault() const { return false; } |
| 2730 | |
| 2731 | bool MachO::isPICDefaultForced() const { |
| 2732 | return (getArch() == llvm::Triple::x86_64 || |
| 2733 | getArch() == llvm::Triple::aarch64); |
| 2734 | } |
| 2735 | |
| 2736 | bool MachO::SupportsProfiling() const { |
| 2737 | // Profiling instrumentation is only supported on x86. |
| 2738 | return getTriple().isX86(); |
| 2739 | } |
| 2740 | |
| 2741 | void Darwin::addMinVersionArgs(const ArgList &Args, |
| 2742 | ArgStringList &CmdArgs) const { |
| 2743 | VersionTuple TargetVersion = getTripleTargetVersion(); |
| 2744 | |
| 2745 | if (isTargetWatchOS()) |
| 2746 | CmdArgs.push_back("-watchos_version_min"); |
| 2747 | else if (isTargetWatchOSSimulator()) |
| 2748 | CmdArgs.push_back("-watchos_simulator_version_min"); |
| 2749 | else if (isTargetTvOS()) |
| 2750 | CmdArgs.push_back("-tvos_version_min"); |
| 2751 | else if (isTargetTvOSSimulator()) |
| 2752 | CmdArgs.push_back("-tvos_simulator_version_min"); |
| 2753 | else if (isTargetIOSSimulator()) |
| 2754 | CmdArgs.push_back("-ios_simulator_version_min"); |
| 2755 | else if (isTargetIOSBased()) |
| 2756 | CmdArgs.push_back("-iphoneos_version_min"); |
| 2757 | else if (isTargetMacCatalyst()) |
| 2758 | CmdArgs.push_back("-maccatalyst_version_min"); |
| 2759 | else { |
| 2760 | assert(isTargetMacOS() && "unexpected target")(static_cast<void> (0)); |
| 2761 | CmdArgs.push_back("-macosx_version_min"); |
| 2762 | } |
| 2763 | |
| 2764 | VersionTuple MinTgtVers = getEffectiveTriple().getMinimumSupportedOSVersion(); |
| 2765 | if (!MinTgtVers.empty() && MinTgtVers > TargetVersion) |
| 2766 | TargetVersion = MinTgtVers; |
| 2767 | CmdArgs.push_back(Args.MakeArgString(TargetVersion.getAsString())); |
| 2768 | } |
| 2769 | |
| 2770 | static const char *getPlatformName(Darwin::DarwinPlatformKind Platform, |
| 2771 | Darwin::DarwinEnvironmentKind Environment) { |
| 2772 | switch (Platform) { |
| 2773 | case Darwin::MacOS: |
| 2774 | return "macos"; |
| 2775 | case Darwin::IPhoneOS: |
| 2776 | if (Environment == Darwin::MacCatalyst) |
| 2777 | return "mac catalyst"; |
| 2778 | return "ios"; |
| 2779 | case Darwin::TvOS: |
| 2780 | return "tvos"; |
| 2781 | case Darwin::WatchOS: |
| 2782 | return "watchos"; |
| 2783 | } |
| 2784 | llvm_unreachable("invalid platform")__builtin_unreachable(); |
| 2785 | } |
| 2786 | |
| 2787 | void Darwin::addPlatformVersionArgs(const llvm::opt::ArgList &Args, |
| 2788 | llvm::opt::ArgStringList &CmdArgs) const { |
| 2789 | // -platform_version <platform> <target_version> <sdk_version> |
| 2790 | // Both the target and SDK version support only up to 3 components. |
| 2791 | CmdArgs.push_back("-platform_version"); |
| 2792 | std::string PlatformName = getPlatformName(TargetPlatform, TargetEnvironment); |
| 2793 | if (TargetEnvironment == Darwin::Simulator) |
| 2794 | PlatformName += "-simulator"; |
| 2795 | CmdArgs.push_back(Args.MakeArgString(PlatformName)); |
| 2796 | VersionTuple TargetVersion = getTripleTargetVersion().withoutBuild(); |
| 2797 | VersionTuple MinTgtVers = getEffectiveTriple().getMinimumSupportedOSVersion(); |
| 2798 | if (!MinTgtVers.empty() && MinTgtVers > TargetVersion) |
| 2799 | TargetVersion = MinTgtVers; |
| 2800 | CmdArgs.push_back(Args.MakeArgString(TargetVersion.getAsString())); |
| 2801 | |
| 2802 | if (isTargetMacCatalyst()) { |
| 2803 | // Mac Catalyst programs must use the appropriate iOS SDK version |
| 2804 | // that corresponds to the macOS SDK version used for the compilation. |
| 2805 | Optional<VersionTuple> iOSSDKVersion; |
| 2806 | if (SDKInfo) { |
| 2807 | if (const auto *MacOStoMacCatalystMapping = SDKInfo->getVersionMapping( |
| 2808 | DarwinSDKInfo::OSEnvPair::macOStoMacCatalystPair())) { |
| 2809 | iOSSDKVersion = MacOStoMacCatalystMapping->map( |
| 2810 | SDKInfo->getVersion().withoutBuild(), |
| 2811 | minimumMacCatalystDeploymentTarget(), None); |
| 2812 | } |
| 2813 | } |
| 2814 | CmdArgs.push_back(Args.MakeArgString( |
| 2815 | (iOSSDKVersion ? *iOSSDKVersion : minimumMacCatalystDeploymentTarget()) |
| 2816 | .getAsString())); |
| 2817 | return; |
| 2818 | } |
| 2819 | |
| 2820 | if (SDKInfo) { |
| 2821 | VersionTuple SDKVersion = SDKInfo->getVersion().withoutBuild(); |
| 2822 | CmdArgs.push_back(Args.MakeArgString(SDKVersion.getAsString())); |
| 2823 | } else { |
| 2824 | // Use an SDK version that's matching the deployment target if the SDK |
| 2825 | // version is missing. This is preferred over an empty SDK version (0.0.0) |
| 2826 | // as the system's runtime might expect the linked binary to contain a |
| 2827 | // valid SDK version in order for the binary to work correctly. It's |
| 2828 | // reasonable to use the deployment target version as a proxy for the |
| 2829 | // SDK version because older SDKs don't guarantee support for deployment |
| 2830 | // targets newer than the SDK versions, so that rules out using some |
| 2831 | // predetermined older SDK version, which leaves the deployment target |
| 2832 | // version as the only reasonable choice. |
| 2833 | CmdArgs.push_back(Args.MakeArgString(TargetVersion.getAsString())); |
| 2834 | } |
| 2835 | } |
| 2836 | |
| 2837 | // Add additional link args for the -dynamiclib option. |
| 2838 | static void addDynamicLibLinkArgs(const Darwin &D, const ArgList &Args, |
| 2839 | ArgStringList &CmdArgs) { |
| 2840 | // Derived from darwin_dylib1 spec. |
| 2841 | if (D.isTargetIPhoneOS()) { |
| 2842 | if (D.isIPhoneOSVersionLT(3, 1)) |
| 2843 | CmdArgs.push_back("-ldylib1.o"); |
| 2844 | return; |
| 2845 | } |
| 2846 | |
| 2847 | if (!D.isTargetMacOS()) |
| 2848 | return; |
| 2849 | if (D.isMacosxVersionLT(10, 5)) |
| 2850 | CmdArgs.push_back("-ldylib1.o"); |
| 2851 | else if (D.isMacosxVersionLT(10, 6)) |
| 2852 | CmdArgs.push_back("-ldylib1.10.5.o"); |
| 2853 | } |
| 2854 | |
| 2855 | // Add additional link args for the -bundle option. |
| 2856 | static void addBundleLinkArgs(const Darwin &D, const ArgList &Args, |
| 2857 | ArgStringList &CmdArgs) { |
| 2858 | if (Args.hasArg(options::OPT_static)) |
| 2859 | return; |
| 2860 | // Derived from darwin_bundle1 spec. |
| 2861 | if ((D.isTargetIPhoneOS() && D.isIPhoneOSVersionLT(3, 1)) || |
| 2862 | (D.isTargetMacOS() && D.isMacosxVersionLT(10, 6))) |
| 2863 | CmdArgs.push_back("-lbundle1.o"); |
| 2864 | } |
| 2865 | |
| 2866 | // Add additional link args for the -pg option. |
| 2867 | static void addPgProfilingLinkArgs(const Darwin &D, const ArgList &Args, |
| 2868 | ArgStringList &CmdArgs) { |
| 2869 | if (D.isTargetMacOS() && D.isMacosxVersionLT(10, 9)) { |
| 2870 | if (Args.hasArg(options::OPT_static) || Args.hasArg(options::OPT_object) || |
| 2871 | Args.hasArg(options::OPT_preload)) { |
| 2872 | CmdArgs.push_back("-lgcrt0.o"); |
| 2873 | } else { |
| 2874 | CmdArgs.push_back("-lgcrt1.o"); |
| 2875 | |
| 2876 | // darwin_crt2 spec is empty. |
| 2877 | } |
| 2878 | // By default on OS X 10.8 and later, we don't link with a crt1.o |
| 2879 | // file and the linker knows to use _main as the entry point. But, |
| 2880 | // when compiling with -pg, we need to link with the gcrt1.o file, |
| 2881 | // so pass the -no_new_main option to tell the linker to use the |
| 2882 | // "start" symbol as the entry point. |
| 2883 | if (!D.isMacosxVersionLT(10, 8)) |
| 2884 | CmdArgs.push_back("-no_new_main"); |
| 2885 | } else { |
| 2886 | D.getDriver().Diag(diag::err_drv_clang_unsupported_opt_pg_darwin) |
| 2887 | << D.isTargetMacOSBased(); |
| 2888 | } |
| 2889 | } |
| 2890 | |
| 2891 | static void addDefaultCRTLinkArgs(const Darwin &D, const ArgList &Args, |
| 2892 | ArgStringList &CmdArgs) { |
| 2893 | // Derived from darwin_crt1 spec. |
| 2894 | if (D.isTargetIPhoneOS()) { |
| 2895 | if (D.getArch() == llvm::Triple::aarch64) |
| 2896 | ; // iOS does not need any crt1 files for arm64 |
| 2897 | else if (D.isIPhoneOSVersionLT(3, 1)) |
| 2898 | CmdArgs.push_back("-lcrt1.o"); |
| 2899 | else if (D.isIPhoneOSVersionLT(6, 0)) |
| 2900 | CmdArgs.push_back("-lcrt1.3.1.o"); |
| 2901 | return; |
| 2902 | } |
| 2903 | |
| 2904 | if (!D.isTargetMacOS()) |
| 2905 | return; |
| 2906 | if (D.isMacosxVersionLT(10, 5)) |
| 2907 | CmdArgs.push_back("-lcrt1.o"); |
| 2908 | else if (D.isMacosxVersionLT(10, 6)) |
| 2909 | CmdArgs.push_back("-lcrt1.10.5.o"); |
| 2910 | else if (D.isMacosxVersionLT(10, 8)) |
| 2911 | CmdArgs.push_back("-lcrt1.10.6.o"); |
| 2912 | // darwin_crt2 spec is empty. |
| 2913 | } |
| 2914 | |
| 2915 | void Darwin::addStartObjectFileArgs(const ArgList &Args, |
| 2916 | ArgStringList &CmdArgs) const { |
| 2917 | // Derived from startfile spec. |
| 2918 | if (Args.hasArg(options::OPT_dynamiclib)) |
| 2919 | addDynamicLibLinkArgs(*this, Args, CmdArgs); |
| 2920 | else if (Args.hasArg(options::OPT_bundle)) |
| 2921 | addBundleLinkArgs(*this, Args, CmdArgs); |
| 2922 | else if (Args.hasArg(options::OPT_pg) && SupportsProfiling()) |
| 2923 | addPgProfilingLinkArgs(*this, Args, CmdArgs); |
| 2924 | else if (Args.hasArg(options::OPT_static) || |
| 2925 | Args.hasArg(options::OPT_object) || |
| 2926 | Args.hasArg(options::OPT_preload)) |
| 2927 | CmdArgs.push_back("-lcrt0.o"); |
| 2928 | else |
| 2929 | addDefaultCRTLinkArgs(*this, Args, CmdArgs); |
| 2930 | |
| 2931 | if (isTargetMacOS() && Args.hasArg(options::OPT_shared_libgcc) && |
| 2932 | isMacosxVersionLT(10, 5)) { |
| 2933 | const char *Str = Args.MakeArgString(GetFilePath("crt3.o")); |
| 2934 | CmdArgs.push_back(Str); |
| 2935 | } |
| 2936 | } |
| 2937 | |
| 2938 | void Darwin::CheckObjCARC() const { |
| 2939 | if (isTargetIOSBased() || isTargetWatchOSBased() || |
| 2940 | (isTargetMacOSBased() && !isMacosxVersionLT(10, 6))) |
| 2941 | return; |
| 2942 | getDriver().Diag(diag::err_arc_unsupported_on_toolchain); |
| 2943 | } |
| 2944 | |
| 2945 | SanitizerMask Darwin::getSupportedSanitizers() const { |
| 2946 | const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64; |
| 2947 | const bool IsAArch64 = getTriple().getArch() == llvm::Triple::aarch64; |
| 2948 | SanitizerMask Res = ToolChain::getSupportedSanitizers(); |
| 2949 | Res |= SanitizerKind::Address; |
| 2950 | Res |= SanitizerKind::PointerCompare; |
| 2951 | Res |= SanitizerKind::PointerSubtract; |
| 2952 | Res |= SanitizerKind::Leak; |
| 2953 | Res |= SanitizerKind::Fuzzer; |
| 2954 | Res |= SanitizerKind::FuzzerNoLink; |
| 2955 | Res |= SanitizerKind::Function; |
| 2956 | Res |= SanitizerKind::ObjCCast; |
| 2957 | |
| 2958 | // Prior to 10.9, macOS shipped a version of the C++ standard library without |
| 2959 | // C++11 support. The same is true of iOS prior to version 5. These OS'es are |
| 2960 | // incompatible with -fsanitize=vptr. |
| 2961 | if (!(isTargetMacOSBased() && isMacosxVersionLT(10, 9)) && |
| 2962 | !(isTargetIPhoneOS() && isIPhoneOSVersionLT(5, 0))) |
| 2963 | Res |= SanitizerKind::Vptr; |
| 2964 | |
| 2965 | if ((IsX86_64 || IsAArch64) && isTargetMacOSBased()) { |
| 2966 | Res |= SanitizerKind::Thread; |
| 2967 | } else if (isTargetIOSSimulator() || isTargetTvOSSimulator()) { |
| 2968 | if (IsX86_64) |
| 2969 | Res |= SanitizerKind::Thread; |
| 2970 | } |
| 2971 | return Res; |
| 2972 | } |
| 2973 | |
| 2974 | void Darwin::printVerboseInfo(raw_ostream &OS) const { |
| 2975 | CudaInstallation.print(OS); |
| 2976 | RocmInstallation.print(OS); |
| 2977 | } |