File: | src/gnu/usr.bin/clang/libclangDriver/../../../llvm/clang/lib/Driver/ToolChains/Darwin.cpp |
Warning: | line 2582, 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.")((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!")((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.")((void)0); |
147 | CmdArgs.push_back("-o"); |
148 | CmdArgs.push_back(Output.getFilename()); |
149 | |
150 | assert(Input.isFilename() && "Invalid input.")((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.")((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.")((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.")((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.")((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.")((void)0); |
766 | const InputInfo &Input = Inputs[0]; |
767 | assert(Input.isFilename() && "Unexpected dsymutil input.")((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.")((void)0); |
788 | const InputInfo &Input = Inputs[0]; |
789 | assert(Input.isFilename() && "Unexpected verify input")((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")((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")((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 -m<os>-version-min argument. |
1383 | OSVersionArg, |
1384 | /// The OS was specified using the OS_DEPLOYMENT_TARGET environment. |
1385 | DeploymentTargetEnv, |
1386 | /// The OS was inferred from the SDK. |
1387 | InferredFromSDK, |
1388 | /// The OS was inferred from the -arch. |
1389 | InferredFromArch |
1390 | }; |
1391 | |
1392 | using DarwinPlatformKind = Darwin::DarwinPlatformKind; |
1393 | using DarwinEnvironmentKind = Darwin::DarwinEnvironmentKind; |
1394 | |
1395 | DarwinPlatformKind getPlatform() const { return Platform; } |
1396 | |
1397 | DarwinEnvironmentKind getEnvironment() const { return Environment; } |
1398 | |
1399 | void setEnvironment(DarwinEnvironmentKind Kind) { |
1400 | Environment = Kind; |
1401 | InferSimulatorFromArch = false; |
1402 | } |
1403 | |
1404 | StringRef getOSVersion() const { |
1405 | if (Kind == OSVersionArg) |
1406 | return Argument->getValue(); |
1407 | return OSVersion; |
1408 | } |
1409 | |
1410 | void setOSVersion(StringRef S) { |
1411 | assert(Kind == TargetArg && "Unexpected kind!")((void)0); |
1412 | OSVersion = std::string(S); |
1413 | } |
1414 | |
1415 | bool hasOSVersion() const { return HasOSVersion; } |
1416 | |
1417 | VersionTuple getNativeTargetVersion() const { |
1418 | assert(Environment == DarwinEnvironmentKind::MacCatalyst &&((void)0) |
1419 | "native target version is specified only for Mac Catalyst")((void)0); |
1420 | return NativeTargetVersion; |
1421 | } |
1422 | |
1423 | /// Returns true if the target OS was explicitly specified. |
1424 | bool isExplicitlySpecified() const { return Kind <= DeploymentTargetEnv; } |
1425 | |
1426 | /// Returns true if the simulator environment can be inferred from the arch. |
1427 | bool canInferSimulatorFromArch() const { return InferSimulatorFromArch; } |
1428 | |
1429 | /// Adds the -m<os>-version-min argument to the compiler invocation. |
1430 | void addOSVersionMinArgument(DerivedArgList &Args, const OptTable &Opts) { |
1431 | if (Argument) |
1432 | return; |
1433 | assert(Kind != TargetArg && Kind != OSVersionArg && "Invalid kind")((void)0); |
1434 | options::ID Opt; |
1435 | switch (Platform) { |
1436 | case DarwinPlatformKind::MacOS: |
1437 | Opt = options::OPT_mmacosx_version_min_EQ; |
1438 | break; |
1439 | case DarwinPlatformKind::IPhoneOS: |
1440 | Opt = options::OPT_miphoneos_version_min_EQ; |
1441 | break; |
1442 | case DarwinPlatformKind::TvOS: |
1443 | Opt = options::OPT_mtvos_version_min_EQ; |
1444 | break; |
1445 | case DarwinPlatformKind::WatchOS: |
1446 | Opt = options::OPT_mwatchos_version_min_EQ; |
1447 | break; |
1448 | } |
1449 | Argument = Args.MakeJoinedArg(nullptr, Opts.getOption(Opt), OSVersion); |
1450 | Args.append(Argument); |
1451 | } |
1452 | |
1453 | /// Returns the OS version with the argument / environment variable that |
1454 | /// specified it. |
1455 | std::string getAsString(DerivedArgList &Args, const OptTable &Opts) { |
1456 | switch (Kind) { |
1457 | case TargetArg: |
1458 | case OSVersionArg: |
1459 | case InferredFromSDK: |
1460 | case InferredFromArch: |
1461 | assert(Argument && "OS version argument not yet inferred")((void)0); |
1462 | return Argument->getAsString(Args); |
1463 | case DeploymentTargetEnv: |
1464 | return (llvm::Twine(EnvVarName) + "=" + OSVersion).str(); |
1465 | } |
1466 | llvm_unreachable("Unsupported Darwin Source Kind")__builtin_unreachable(); |
1467 | } |
1468 | |
1469 | static DarwinPlatform |
1470 | createFromTarget(const llvm::Triple &TT, StringRef OSVersion, Arg *A, |
1471 | const Optional<DarwinSDKInfo> &SDKInfo) { |
1472 | DarwinPlatform Result(TargetArg, getPlatformFromOS(TT.getOS()), OSVersion, |
1473 | A); |
1474 | unsigned Major, Minor, Micro; |
1475 | TT.getOSVersion(Major, Minor, Micro); |
1476 | if (Major == 0) |
1477 | Result.HasOSVersion = false; |
1478 | |
1479 | switch (TT.getEnvironment()) { |
1480 | case llvm::Triple::Simulator: |
1481 | Result.Environment = DarwinEnvironmentKind::Simulator; |
1482 | break; |
1483 | case llvm::Triple::MacABI: { |
1484 | // The minimum native macOS target for MacCatalyst is macOS 10.15. |
1485 | auto NativeTargetVersion = VersionTuple(10, 15); |
1486 | if (Result.HasOSVersion && SDKInfo) { |
1487 | if (const auto *MacCatalystToMacOSMapping = SDKInfo->getVersionMapping( |
1488 | DarwinSDKInfo::OSEnvPair::macCatalystToMacOSPair())) { |
1489 | if (auto MacOSVersion = MacCatalystToMacOSMapping->map( |
1490 | VersionTuple(Major, Minor, Micro), NativeTargetVersion, |
1491 | None)) { |
1492 | NativeTargetVersion = *MacOSVersion; |
1493 | } |
1494 | } |
1495 | } |
1496 | Result.Environment = DarwinEnvironmentKind::MacCatalyst; |
1497 | Result.NativeTargetVersion = NativeTargetVersion; |
1498 | break; |
1499 | } |
1500 | default: |
1501 | break; |
1502 | } |
1503 | return Result; |
1504 | } |
1505 | static DarwinPlatform createOSVersionArg(DarwinPlatformKind Platform, |
1506 | Arg *A) { |
1507 | return DarwinPlatform(OSVersionArg, Platform, A); |
1508 | } |
1509 | static DarwinPlatform createDeploymentTargetEnv(DarwinPlatformKind Platform, |
1510 | StringRef EnvVarName, |
1511 | StringRef Value) { |
1512 | DarwinPlatform Result(DeploymentTargetEnv, Platform, Value); |
1513 | Result.EnvVarName = EnvVarName; |
1514 | return Result; |
1515 | } |
1516 | static DarwinPlatform createFromSDK(DarwinPlatformKind Platform, |
1517 | StringRef Value, |
1518 | bool IsSimulator = false) { |
1519 | DarwinPlatform Result(InferredFromSDK, Platform, Value); |
1520 | if (IsSimulator) |
1521 | Result.Environment = DarwinEnvironmentKind::Simulator; |
1522 | Result.InferSimulatorFromArch = false; |
1523 | return Result; |
1524 | } |
1525 | static DarwinPlatform createFromArch(llvm::Triple::OSType OS, |
1526 | StringRef Value) { |
1527 | return DarwinPlatform(InferredFromArch, getPlatformFromOS(OS), Value); |
1528 | } |
1529 | |
1530 | /// Constructs an inferred SDKInfo value based on the version inferred from |
1531 | /// the SDK path itself. Only works for values that were created by inferring |
1532 | /// the platform from the SDKPath. |
1533 | DarwinSDKInfo inferSDKInfo() { |
1534 | assert(Kind == InferredFromSDK && "can infer SDK info only")((void)0); |
1535 | llvm::VersionTuple Version; |
1536 | bool IsValid = !Version.tryParse(OSVersion); |
1537 | (void)IsValid; |
1538 | assert(IsValid && "invalid SDK version")((void)0); |
1539 | return DarwinSDKInfo( |
1540 | Version, |
1541 | /*MaximumDeploymentTarget=*/VersionTuple(Version.getMajor(), 0, 99)); |
1542 | } |
1543 | |
1544 | private: |
1545 | DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, Arg *Argument) |
1546 | : Kind(Kind), Platform(Platform), Argument(Argument) {} |
1547 | DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, StringRef Value, |
1548 | Arg *Argument = nullptr) |
1549 | : Kind(Kind), Platform(Platform), OSVersion(Value), Argument(Argument) {} |
1550 | |
1551 | static DarwinPlatformKind getPlatformFromOS(llvm::Triple::OSType OS) { |
1552 | switch (OS) { |
1553 | case llvm::Triple::Darwin: |
1554 | case llvm::Triple::MacOSX: |
1555 | return DarwinPlatformKind::MacOS; |
1556 | case llvm::Triple::IOS: |
1557 | return DarwinPlatformKind::IPhoneOS; |
1558 | case llvm::Triple::TvOS: |
1559 | return DarwinPlatformKind::TvOS; |
1560 | case llvm::Triple::WatchOS: |
1561 | return DarwinPlatformKind::WatchOS; |
1562 | default: |
1563 | llvm_unreachable("Unable to infer Darwin variant")__builtin_unreachable(); |
1564 | } |
1565 | } |
1566 | |
1567 | SourceKind Kind; |
1568 | DarwinPlatformKind Platform; |
1569 | DarwinEnvironmentKind Environment = DarwinEnvironmentKind::NativeEnvironment; |
1570 | VersionTuple NativeTargetVersion; |
1571 | std::string OSVersion; |
1572 | bool HasOSVersion = true, InferSimulatorFromArch = true; |
1573 | Arg *Argument; |
1574 | StringRef EnvVarName; |
1575 | }; |
1576 | |
1577 | /// Returns the deployment target that's specified using the -m<os>-version-min |
1578 | /// argument. |
1579 | Optional<DarwinPlatform> |
1580 | getDeploymentTargetFromOSVersionArg(DerivedArgList &Args, |
1581 | const Driver &TheDriver) { |
1582 | Arg *OSXVersion = Args.getLastArg(options::OPT_mmacosx_version_min_EQ); |
1583 | Arg *iOSVersion = Args.getLastArg(options::OPT_miphoneos_version_min_EQ, |
1584 | options::OPT_mios_simulator_version_min_EQ); |
1585 | Arg *TvOSVersion = |
1586 | Args.getLastArg(options::OPT_mtvos_version_min_EQ, |
1587 | options::OPT_mtvos_simulator_version_min_EQ); |
1588 | Arg *WatchOSVersion = |
1589 | Args.getLastArg(options::OPT_mwatchos_version_min_EQ, |
1590 | options::OPT_mwatchos_simulator_version_min_EQ); |
1591 | if (OSXVersion) { |
1592 | if (iOSVersion || TvOSVersion || WatchOSVersion) { |
1593 | TheDriver.Diag(diag::err_drv_argument_not_allowed_with) |
1594 | << OSXVersion->getAsString(Args) |
1595 | << (iOSVersion ? iOSVersion |
1596 | : TvOSVersion ? TvOSVersion : WatchOSVersion) |
1597 | ->getAsString(Args); |
1598 | } |
1599 | return DarwinPlatform::createOSVersionArg(Darwin::MacOS, OSXVersion); |
1600 | } else if (iOSVersion) { |
1601 | if (TvOSVersion || WatchOSVersion) { |
1602 | TheDriver.Diag(diag::err_drv_argument_not_allowed_with) |
1603 | << iOSVersion->getAsString(Args) |
1604 | << (TvOSVersion ? TvOSVersion : WatchOSVersion)->getAsString(Args); |
1605 | } |
1606 | return DarwinPlatform::createOSVersionArg(Darwin::IPhoneOS, iOSVersion); |
1607 | } else if (TvOSVersion) { |
1608 | if (WatchOSVersion) { |
1609 | TheDriver.Diag(diag::err_drv_argument_not_allowed_with) |
1610 | << TvOSVersion->getAsString(Args) |
1611 | << WatchOSVersion->getAsString(Args); |
1612 | } |
1613 | return DarwinPlatform::createOSVersionArg(Darwin::TvOS, TvOSVersion); |
1614 | } else if (WatchOSVersion) |
1615 | return DarwinPlatform::createOSVersionArg(Darwin::WatchOS, WatchOSVersion); |
1616 | return None; |
1617 | } |
1618 | |
1619 | /// Returns the deployment target that's specified using the |
1620 | /// OS_DEPLOYMENT_TARGET environment variable. |
1621 | Optional<DarwinPlatform> |
1622 | getDeploymentTargetFromEnvironmentVariables(const Driver &TheDriver, |
1623 | const llvm::Triple &Triple) { |
1624 | std::string Targets[Darwin::LastDarwinPlatform + 1]; |
1625 | const char *EnvVars[] = { |
1626 | "MACOSX_DEPLOYMENT_TARGET", |
1627 | "IPHONEOS_DEPLOYMENT_TARGET", |
1628 | "TVOS_DEPLOYMENT_TARGET", |
1629 | "WATCHOS_DEPLOYMENT_TARGET", |
1630 | }; |
1631 | static_assert(llvm::array_lengthof(EnvVars) == Darwin::LastDarwinPlatform + 1, |
1632 | "Missing platform"); |
1633 | for (const auto &I : llvm::enumerate(llvm::makeArrayRef(EnvVars))) { |
1634 | if (char *Env = ::getenv(I.value())) |
1635 | Targets[I.index()] = Env; |
1636 | } |
1637 | |
1638 | // Allow conflicts among OSX and iOS for historical reasons, but choose the |
1639 | // default platform. |
1640 | if (!Targets[Darwin::MacOS].empty() && |
1641 | (!Targets[Darwin::IPhoneOS].empty() || |
1642 | !Targets[Darwin::WatchOS].empty() || !Targets[Darwin::TvOS].empty())) { |
1643 | if (Triple.getArch() == llvm::Triple::arm || |
1644 | Triple.getArch() == llvm::Triple::aarch64 || |
1645 | Triple.getArch() == llvm::Triple::thumb) |
1646 | Targets[Darwin::MacOS] = ""; |
1647 | else |
1648 | Targets[Darwin::IPhoneOS] = Targets[Darwin::WatchOS] = |
1649 | Targets[Darwin::TvOS] = ""; |
1650 | } else { |
1651 | // Don't allow conflicts in any other platform. |
1652 | unsigned FirstTarget = llvm::array_lengthof(Targets); |
1653 | for (unsigned I = 0; I != llvm::array_lengthof(Targets); ++I) { |
1654 | if (Targets[I].empty()) |
1655 | continue; |
1656 | if (FirstTarget == llvm::array_lengthof(Targets)) |
1657 | FirstTarget = I; |
1658 | else |
1659 | TheDriver.Diag(diag::err_drv_conflicting_deployment_targets) |
1660 | << Targets[FirstTarget] << Targets[I]; |
1661 | } |
1662 | } |
1663 | |
1664 | for (const auto &Target : llvm::enumerate(llvm::makeArrayRef(Targets))) { |
1665 | if (!Target.value().empty()) |
1666 | return DarwinPlatform::createDeploymentTargetEnv( |
1667 | (Darwin::DarwinPlatformKind)Target.index(), EnvVars[Target.index()], |
1668 | Target.value()); |
1669 | } |
1670 | return None; |
1671 | } |
1672 | |
1673 | /// Returns the SDK name without the optional prefix that ends with a '.' or an |
1674 | /// empty string otherwise. |
1675 | static StringRef dropSDKNamePrefix(StringRef SDKName) { |
1676 | size_t PrefixPos = SDKName.find('.'); |
1677 | if (PrefixPos == StringRef::npos) |
1678 | return ""; |
1679 | return SDKName.substr(PrefixPos + 1); |
1680 | } |
1681 | |
1682 | /// Tries to infer the deployment target from the SDK specified by -isysroot |
1683 | /// (or SDKROOT). Uses the version specified in the SDKSettings.json file if |
1684 | /// it's available. |
1685 | Optional<DarwinPlatform> |
1686 | inferDeploymentTargetFromSDK(DerivedArgList &Args, |
1687 | const Optional<DarwinSDKInfo> &SDKInfo) { |
1688 | const Arg *A = Args.getLastArg(options::OPT_isysroot); |
1689 | if (!A) |
1690 | return None; |
1691 | StringRef isysroot = A->getValue(); |
1692 | StringRef SDK = Darwin::getSDKName(isysroot); |
1693 | if (!SDK.size()) |
1694 | return None; |
1695 | |
1696 | std::string Version; |
1697 | if (SDKInfo) { |
1698 | // Get the version from the SDKSettings.json if it's available. |
1699 | Version = SDKInfo->getVersion().getAsString(); |
1700 | } else { |
1701 | // Slice the version number out. |
1702 | // Version number is between the first and the last number. |
1703 | size_t StartVer = SDK.find_first_of("0123456789"); |
1704 | size_t EndVer = SDK.find_last_of("0123456789"); |
1705 | if (StartVer != StringRef::npos && EndVer > StartVer) |
1706 | Version = std::string(SDK.slice(StartVer, EndVer + 1)); |
1707 | } |
1708 | if (Version.empty()) |
1709 | return None; |
1710 | |
1711 | auto CreatePlatformFromSDKName = |
1712 | [&](StringRef SDK) -> Optional<DarwinPlatform> { |
1713 | if (SDK.startswith("iPhoneOS") || SDK.startswith("iPhoneSimulator")) |
1714 | return DarwinPlatform::createFromSDK( |
1715 | Darwin::IPhoneOS, Version, |
1716 | /*IsSimulator=*/SDK.startswith("iPhoneSimulator")); |
1717 | else if (SDK.startswith("MacOSX")) |
1718 | return DarwinPlatform::createFromSDK(Darwin::MacOS, |
1719 | getSystemOrSDKMacOSVersion(Version)); |
1720 | else if (SDK.startswith("WatchOS") || SDK.startswith("WatchSimulator")) |
1721 | return DarwinPlatform::createFromSDK( |
1722 | Darwin::WatchOS, Version, |
1723 | /*IsSimulator=*/SDK.startswith("WatchSimulator")); |
1724 | else if (SDK.startswith("AppleTVOS") || SDK.startswith("AppleTVSimulator")) |
1725 | return DarwinPlatform::createFromSDK( |
1726 | Darwin::TvOS, Version, |
1727 | /*IsSimulator=*/SDK.startswith("AppleTVSimulator")); |
1728 | return None; |
1729 | }; |
1730 | if (auto Result = CreatePlatformFromSDKName(SDK)) |
1731 | return Result; |
1732 | // The SDK can be an SDK variant with a name like `<prefix>.<platform>`. |
1733 | return CreatePlatformFromSDKName(dropSDKNamePrefix(SDK)); |
1734 | } |
1735 | |
1736 | std::string getOSVersion(llvm::Triple::OSType OS, const llvm::Triple &Triple, |
1737 | const Driver &TheDriver) { |
1738 | unsigned Major, Minor, Micro; |
1739 | llvm::Triple SystemTriple(llvm::sys::getProcessTriple()); |
1740 | switch (OS) { |
1741 | case llvm::Triple::Darwin: |
1742 | case llvm::Triple::MacOSX: |
1743 | // If there is no version specified on triple, and both host and target are |
1744 | // macos, use the host triple to infer OS version. |
1745 | if (Triple.isMacOSX() && SystemTriple.isMacOSX() && |
1746 | !Triple.getOSMajorVersion()) |
1747 | SystemTriple.getMacOSXVersion(Major, Minor, Micro); |
1748 | else if (!Triple.getMacOSXVersion(Major, Minor, Micro)) |
1749 | TheDriver.Diag(diag::err_drv_invalid_darwin_version) |
1750 | << Triple.getOSName(); |
1751 | break; |
1752 | case llvm::Triple::IOS: |
1753 | Triple.getiOSVersion(Major, Minor, Micro); |
1754 | break; |
1755 | case llvm::Triple::TvOS: |
1756 | Triple.getOSVersion(Major, Minor, Micro); |
1757 | break; |
1758 | case llvm::Triple::WatchOS: |
1759 | Triple.getWatchOSVersion(Major, Minor, Micro); |
1760 | break; |
1761 | default: |
1762 | llvm_unreachable("Unexpected OS type")__builtin_unreachable(); |
1763 | break; |
1764 | } |
1765 | |
1766 | std::string OSVersion; |
1767 | llvm::raw_string_ostream(OSVersion) << Major << '.' << Minor << '.' << Micro; |
1768 | return OSVersion; |
1769 | } |
1770 | |
1771 | /// Tries to infer the target OS from the -arch. |
1772 | Optional<DarwinPlatform> |
1773 | inferDeploymentTargetFromArch(DerivedArgList &Args, const Darwin &Toolchain, |
1774 | const llvm::Triple &Triple, |
1775 | const Driver &TheDriver) { |
1776 | llvm::Triple::OSType OSTy = llvm::Triple::UnknownOS; |
1777 | |
1778 | StringRef MachOArchName = Toolchain.getMachOArchName(Args); |
1779 | if (MachOArchName == "arm64" || MachOArchName == "arm64e") { |
1780 | #if __arm64__ |
1781 | // A clang running on an Apple Silicon mac defaults |
1782 | // to building for mac when building for arm64 rather than |
1783 | // defaulting to iOS. |
1784 | OSTy = llvm::Triple::MacOSX; |
1785 | #else |
1786 | OSTy = llvm::Triple::IOS; |
1787 | #endif |
1788 | } else if (MachOArchName == "armv7" || MachOArchName == "armv7s") |
1789 | OSTy = llvm::Triple::IOS; |
1790 | else if (MachOArchName == "armv7k" || MachOArchName == "arm64_32") |
1791 | OSTy = llvm::Triple::WatchOS; |
1792 | else if (MachOArchName != "armv6m" && MachOArchName != "armv7m" && |
1793 | MachOArchName != "armv7em") |
1794 | OSTy = llvm::Triple::MacOSX; |
1795 | |
1796 | if (OSTy == llvm::Triple::UnknownOS) |
1797 | return None; |
1798 | return DarwinPlatform::createFromArch(OSTy, |
1799 | getOSVersion(OSTy, Triple, TheDriver)); |
1800 | } |
1801 | |
1802 | /// Returns the deployment target that's specified using the -target option. |
1803 | Optional<DarwinPlatform> getDeploymentTargetFromTargetArg( |
1804 | DerivedArgList &Args, const llvm::Triple &Triple, const Driver &TheDriver, |
1805 | const Optional<DarwinSDKInfo> &SDKInfo) { |
1806 | if (!Args.hasArg(options::OPT_target)) |
1807 | return None; |
1808 | if (Triple.getOS() == llvm::Triple::Darwin || |
1809 | Triple.getOS() == llvm::Triple::UnknownOS) |
1810 | return None; |
1811 | std::string OSVersion = getOSVersion(Triple.getOS(), Triple, TheDriver); |
1812 | return DarwinPlatform::createFromTarget( |
1813 | Triple, OSVersion, Args.getLastArg(options::OPT_target), SDKInfo); |
1814 | } |
1815 | |
1816 | Optional<DarwinSDKInfo> parseSDKSettings(llvm::vfs::FileSystem &VFS, |
1817 | const ArgList &Args, |
1818 | const Driver &TheDriver) { |
1819 | const Arg *A = Args.getLastArg(options::OPT_isysroot); |
1820 | if (!A) |
1821 | return None; |
1822 | StringRef isysroot = A->getValue(); |
1823 | auto SDKInfoOrErr = parseDarwinSDKInfo(VFS, isysroot); |
1824 | if (!SDKInfoOrErr) { |
1825 | llvm::consumeError(SDKInfoOrErr.takeError()); |
1826 | TheDriver.Diag(diag::warn_drv_darwin_sdk_invalid_settings); |
1827 | return None; |
1828 | } |
1829 | return *SDKInfoOrErr; |
1830 | } |
1831 | |
1832 | } // namespace |
1833 | |
1834 | void Darwin::AddDeploymentTarget(DerivedArgList &Args) const { |
1835 | const OptTable &Opts = getDriver().getOpts(); |
1836 | |
1837 | // Support allowing the SDKROOT environment variable used by xcrun and other |
1838 | // Xcode tools to define the default sysroot, by making it the default for |
1839 | // isysroot. |
1840 | if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { |
1841 | // Warn if the path does not exist. |
1842 | if (!getVFS().exists(A->getValue())) |
1843 | getDriver().Diag(clang::diag::warn_missing_sysroot) << A->getValue(); |
1844 | } else { |
1845 | if (char *env = ::getenv("SDKROOT")) { |
1846 | // We only use this value as the default if it is an absolute path, |
1847 | // exists, and it is not the root path. |
1848 | if (llvm::sys::path::is_absolute(env) && getVFS().exists(env) && |
1849 | StringRef(env) != "/") { |
1850 | Args.append(Args.MakeSeparateArg( |
1851 | nullptr, Opts.getOption(options::OPT_isysroot), env)); |
1852 | } |
1853 | } |
1854 | } |
1855 | |
1856 | // Read the SDKSettings.json file for more information, like the SDK version |
1857 | // that we can pass down to the compiler. |
1858 | SDKInfo = parseSDKSettings(getVFS(), Args, getDriver()); |
1859 | |
1860 | // The OS and the version can be specified using the -target argument. |
1861 | Optional<DarwinPlatform> OSTarget = |
1862 | getDeploymentTargetFromTargetArg(Args, getTriple(), getDriver(), SDKInfo); |
1863 | if (OSTarget) { |
1864 | Optional<DarwinPlatform> OSVersionArgTarget = |
1865 | getDeploymentTargetFromOSVersionArg(Args, getDriver()); |
1866 | if (OSVersionArgTarget) { |
1867 | unsigned TargetMajor, TargetMinor, TargetMicro; |
1868 | bool TargetExtra; |
1869 | unsigned ArgMajor, ArgMinor, ArgMicro; |
1870 | bool ArgExtra; |
1871 | if (OSTarget->getPlatform() != OSVersionArgTarget->getPlatform() || |
1872 | (Driver::GetReleaseVersion(OSTarget->getOSVersion(), TargetMajor, |
1873 | TargetMinor, TargetMicro, TargetExtra) && |
1874 | Driver::GetReleaseVersion(OSVersionArgTarget->getOSVersion(), |
1875 | ArgMajor, ArgMinor, ArgMicro, ArgExtra) && |
1876 | (VersionTuple(TargetMajor, TargetMinor, TargetMicro) != |
1877 | VersionTuple(ArgMajor, ArgMinor, ArgMicro) || |
1878 | TargetExtra != ArgExtra))) { |
1879 | // Select the OS version from the -m<os>-version-min argument when |
1880 | // the -target does not include an OS version. |
1881 | if (OSTarget->getPlatform() == OSVersionArgTarget->getPlatform() && |
1882 | !OSTarget->hasOSVersion()) { |
1883 | OSTarget->setOSVersion(OSVersionArgTarget->getOSVersion()); |
1884 | } else { |
1885 | // Warn about -m<os>-version-min that doesn't match the OS version |
1886 | // that's specified in the target. |
1887 | std::string OSVersionArg = |
1888 | OSVersionArgTarget->getAsString(Args, Opts); |
1889 | std::string TargetArg = OSTarget->getAsString(Args, Opts); |
1890 | getDriver().Diag(clang::diag::warn_drv_overriding_flag_option) |
1891 | << OSVersionArg << TargetArg; |
1892 | } |
1893 | } |
1894 | } |
1895 | } else { |
1896 | // The OS target can be specified using the -m<os>version-min argument. |
1897 | OSTarget = getDeploymentTargetFromOSVersionArg(Args, getDriver()); |
1898 | // If no deployment target was specified on the command line, check for |
1899 | // environment defines. |
1900 | if (!OSTarget) { |
1901 | OSTarget = |
1902 | getDeploymentTargetFromEnvironmentVariables(getDriver(), getTriple()); |
1903 | if (OSTarget) { |
1904 | // Don't infer simulator from the arch when the SDK is also specified. |
1905 | Optional<DarwinPlatform> SDKTarget = |
1906 | inferDeploymentTargetFromSDK(Args, SDKInfo); |
1907 | if (SDKTarget) |
1908 | OSTarget->setEnvironment(SDKTarget->getEnvironment()); |
1909 | } |
1910 | } |
1911 | // If there is no command-line argument to specify the Target version and |
1912 | // no environment variable defined, see if we can set the default based |
1913 | // on -isysroot using SDKSettings.json if it exists. |
1914 | if (!OSTarget) { |
1915 | OSTarget = inferDeploymentTargetFromSDK(Args, SDKInfo); |
1916 | /// If the target was successfully constructed from the SDK path, try to |
1917 | /// infer the SDK info if the SDK doesn't have it. |
1918 | if (OSTarget && !SDKInfo) |
1919 | SDKInfo = OSTarget->inferSDKInfo(); |
1920 | } |
1921 | // If no OS targets have been specified, try to guess platform from -target |
1922 | // or arch name and compute the version from the triple. |
1923 | if (!OSTarget) |
1924 | OSTarget = |
1925 | inferDeploymentTargetFromArch(Args, *this, getTriple(), getDriver()); |
1926 | } |
1927 | |
1928 | assert(OSTarget && "Unable to infer Darwin variant")((void)0); |
1929 | OSTarget->addOSVersionMinArgument(Args, Opts); |
1930 | DarwinPlatformKind Platform = OSTarget->getPlatform(); |
1931 | |
1932 | unsigned Major, Minor, Micro; |
1933 | bool HadExtra; |
1934 | // Set the tool chain target information. |
1935 | if (Platform == MacOS) { |
1936 | if (!Driver::GetReleaseVersion(OSTarget->getOSVersion(), Major, Minor, |
1937 | Micro, HadExtra) || |
1938 | HadExtra || Major < 10 || Major >= 100 || Minor >= 100 || Micro >= 100) |
1939 | getDriver().Diag(diag::err_drv_invalid_version_number) |
1940 | << OSTarget->getAsString(Args, Opts); |
1941 | } else if (Platform == IPhoneOS) { |
1942 | if (!Driver::GetReleaseVersion(OSTarget->getOSVersion(), Major, Minor, |
1943 | Micro, HadExtra) || |
1944 | HadExtra || Major >= 100 || Minor >= 100 || Micro >= 100) |
1945 | getDriver().Diag(diag::err_drv_invalid_version_number) |
1946 | << OSTarget->getAsString(Args, Opts); |
1947 | ; |
1948 | if (OSTarget->getEnvironment() == MacCatalyst && |
1949 | (Major < 13 || (Major == 13 && Minor < 1))) { |
1950 | getDriver().Diag(diag::err_drv_invalid_version_number) |
1951 | << OSTarget->getAsString(Args, Opts); |
1952 | Major = 13; |
1953 | Minor = 1; |
1954 | Micro = 0; |
1955 | } |
1956 | // For 32-bit targets, the deployment target for iOS has to be earlier than |
1957 | // iOS 11. |
1958 | if (getTriple().isArch32Bit() && Major >= 11) { |
1959 | // If the deployment target is explicitly specified, print a diagnostic. |
1960 | if (OSTarget->isExplicitlySpecified()) { |
1961 | if (OSTarget->getEnvironment() == MacCatalyst) |
1962 | getDriver().Diag(diag::err_invalid_macos_32bit_deployment_target); |
1963 | else |
1964 | getDriver().Diag(diag::warn_invalid_ios_deployment_target) |
1965 | << OSTarget->getAsString(Args, Opts); |
1966 | // Otherwise, set it to 10.99.99. |
1967 | } else { |
1968 | Major = 10; |
1969 | Minor = 99; |
1970 | Micro = 99; |
1971 | } |
1972 | } |
1973 | } else if (Platform == TvOS) { |
1974 | if (!Driver::GetReleaseVersion(OSTarget->getOSVersion(), Major, Minor, |
1975 | Micro, HadExtra) || |
1976 | HadExtra || Major >= 100 || Minor >= 100 || Micro >= 100) |
1977 | getDriver().Diag(diag::err_drv_invalid_version_number) |
1978 | << OSTarget->getAsString(Args, Opts); |
1979 | } else if (Platform == WatchOS) { |
1980 | if (!Driver::GetReleaseVersion(OSTarget->getOSVersion(), Major, Minor, |
1981 | Micro, HadExtra) || |
1982 | HadExtra || Major >= 10 || Minor >= 100 || Micro >= 100) |
1983 | getDriver().Diag(diag::err_drv_invalid_version_number) |
1984 | << OSTarget->getAsString(Args, Opts); |
1985 | } else |
1986 | llvm_unreachable("unknown kind of Darwin platform")__builtin_unreachable(); |
1987 | |
1988 | DarwinEnvironmentKind Environment = OSTarget->getEnvironment(); |
1989 | // Recognize iOS targets with an x86 architecture as the iOS simulator. |
1990 | if (Environment == NativeEnvironment && Platform != MacOS && |
1991 | OSTarget->canInferSimulatorFromArch() && getTriple().isX86()) |
1992 | Environment = Simulator; |
1993 | |
1994 | VersionTuple NativeTargetVersion; |
1995 | if (Environment == MacCatalyst) |
1996 | NativeTargetVersion = OSTarget->getNativeTargetVersion(); |
1997 | setTarget(Platform, Environment, Major, Minor, Micro, NativeTargetVersion); |
1998 | |
1999 | if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { |
2000 | StringRef SDK = getSDKName(A->getValue()); |
2001 | if (SDK.size() > 0) { |
2002 | size_t StartVer = SDK.find_first_of("0123456789"); |
2003 | StringRef SDKName = SDK.slice(0, StartVer); |
2004 | if (!SDKName.startswith(getPlatformFamily()) && |
2005 | !dropSDKNamePrefix(SDKName).startswith(getPlatformFamily())) |
2006 | getDriver().Diag(diag::warn_incompatible_sysroot) |
2007 | << SDKName << getPlatformFamily(); |
2008 | } |
2009 | } |
2010 | } |
2011 | |
2012 | // Returns the effective header sysroot path to use. This comes either from |
2013 | // -isysroot or --sysroot. |
2014 | llvm::StringRef DarwinClang::GetHeaderSysroot(const llvm::opt::ArgList &DriverArgs) const { |
2015 | if(DriverArgs.hasArg(options::OPT_isysroot)) |
2016 | return DriverArgs.getLastArgValue(options::OPT_isysroot); |
2017 | if (!getDriver().SysRoot.empty()) |
2018 | return getDriver().SysRoot; |
2019 | return "/"; |
2020 | } |
2021 | |
2022 | void DarwinClang::AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, |
2023 | llvm::opt::ArgStringList &CC1Args) const { |
2024 | const Driver &D = getDriver(); |
2025 | |
2026 | llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs); |
2027 | |
2028 | bool NoStdInc = DriverArgs.hasArg(options::OPT_nostdinc); |
2029 | bool NoStdlibInc = DriverArgs.hasArg(options::OPT_nostdlibinc); |
2030 | bool NoBuiltinInc = DriverArgs.hasFlag( |
2031 | options::OPT_nobuiltininc, options::OPT_ibuiltininc, /*Default=*/false); |
2032 | bool ForceBuiltinInc = DriverArgs.hasFlag( |
2033 | options::OPT_ibuiltininc, options::OPT_nobuiltininc, /*Default=*/false); |
2034 | |
2035 | // Add <sysroot>/usr/local/include |
2036 | if (!NoStdInc && !NoStdlibInc) { |
2037 | SmallString<128> P(Sysroot); |
2038 | llvm::sys::path::append(P, "usr", "local", "include"); |
2039 | addSystemInclude(DriverArgs, CC1Args, P); |
2040 | } |
2041 | |
2042 | // Add the Clang builtin headers (<resource>/include) |
2043 | if (!(NoStdInc && !ForceBuiltinInc) && !NoBuiltinInc) { |
2044 | SmallString<128> P(D.ResourceDir); |
2045 | llvm::sys::path::append(P, "include"); |
2046 | addSystemInclude(DriverArgs, CC1Args, P); |
2047 | } |
2048 | |
2049 | if (NoStdInc || NoStdlibInc) |
2050 | return; |
2051 | |
2052 | // Check for configure-time C include directories. |
2053 | llvm::StringRef CIncludeDirs(C_INCLUDE_DIRS""); |
2054 | if (!CIncludeDirs.empty()) { |
2055 | llvm::SmallVector<llvm::StringRef, 5> dirs; |
2056 | CIncludeDirs.split(dirs, ":"); |
2057 | for (llvm::StringRef dir : dirs) { |
2058 | llvm::StringRef Prefix = |
2059 | llvm::sys::path::is_absolute(dir) ? "" : llvm::StringRef(Sysroot); |
2060 | addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir); |
2061 | } |
2062 | } else { |
2063 | // Otherwise, add <sysroot>/usr/include. |
2064 | SmallString<128> P(Sysroot); |
2065 | llvm::sys::path::append(P, "usr", "include"); |
2066 | addExternCSystemInclude(DriverArgs, CC1Args, P.str()); |
2067 | } |
2068 | } |
2069 | |
2070 | bool DarwinClang::AddGnuCPlusPlusIncludePaths(const llvm::opt::ArgList &DriverArgs, |
2071 | llvm::opt::ArgStringList &CC1Args, |
2072 | llvm::SmallString<128> Base, |
2073 | llvm::StringRef Version, |
2074 | llvm::StringRef ArchDir, |
2075 | llvm::StringRef BitDir) const { |
2076 | llvm::sys::path::append(Base, Version); |
2077 | |
2078 | // Add the base dir |
2079 | addSystemInclude(DriverArgs, CC1Args, Base); |
2080 | |
2081 | // Add the multilib dirs |
2082 | { |
2083 | llvm::SmallString<128> P = Base; |
2084 | if (!ArchDir.empty()) |
2085 | llvm::sys::path::append(P, ArchDir); |
2086 | if (!BitDir.empty()) |
2087 | llvm::sys::path::append(P, BitDir); |
2088 | addSystemInclude(DriverArgs, CC1Args, P); |
2089 | } |
2090 | |
2091 | // Add the backward dir |
2092 | { |
2093 | llvm::SmallString<128> P = Base; |
2094 | llvm::sys::path::append(P, "backward"); |
2095 | addSystemInclude(DriverArgs, CC1Args, P); |
2096 | } |
2097 | |
2098 | return getVFS().exists(Base); |
2099 | } |
2100 | |
2101 | void DarwinClang::AddClangCXXStdlibIncludeArgs( |
2102 | const llvm::opt::ArgList &DriverArgs, |
2103 | llvm::opt::ArgStringList &CC1Args) const { |
2104 | // The implementation from a base class will pass through the -stdlib to |
2105 | // CC1Args. |
2106 | // FIXME: this should not be necessary, remove usages in the frontend |
2107 | // (e.g. HeaderSearchOptions::UseLibcxx) and don't pipe -stdlib. |
2108 | // Also check whether this is used for setting library search paths. |
2109 | ToolChain::AddClangCXXStdlibIncludeArgs(DriverArgs, CC1Args); |
2110 | |
2111 | if (DriverArgs.hasArg(options::OPT_nostdlibinc) || |
2112 | DriverArgs.hasArg(options::OPT_nostdincxx)) |
2113 | return; |
2114 | |
2115 | llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs); |
2116 | |
2117 | switch (GetCXXStdlibType(DriverArgs)) { |
2118 | case ToolChain::CST_Libcxx: { |
2119 | // On Darwin, libc++ can be installed in one of the following two places: |
2120 | // 1. Alongside the compiler in <install>/include/c++/v1 |
2121 | // 2. In a SDK (or a custom sysroot) in <sysroot>/usr/include/c++/v1 |
2122 | // |
2123 | // The precendence of paths is as listed above, i.e. we take the first path |
2124 | // that exists. Also note that we never include libc++ twice -- we take the |
2125 | // first path that exists and don't send the other paths to CC1 (otherwise |
2126 | // include_next could break). |
2127 | |
2128 | // Check for (1) |
2129 | // Get from '<install>/bin' to '<install>/include/c++/v1'. |
2130 | // Note that InstallBin can be relative, so we use '..' instead of |
2131 | // parent_path. |
2132 | llvm::SmallString<128> InstallBin = |
2133 | llvm::StringRef(getDriver().getInstalledDir()); // <install>/bin |
2134 | llvm::sys::path::append(InstallBin, "..", "include", "c++", "v1"); |
2135 | if (getVFS().exists(InstallBin)) { |
2136 | addSystemInclude(DriverArgs, CC1Args, InstallBin); |
2137 | return; |
2138 | } else if (DriverArgs.hasArg(options::OPT_v)) { |
2139 | llvm::errs() << "ignoring nonexistent directory \"" << InstallBin |
2140 | << "\"\n"; |
2141 | } |
2142 | |
2143 | // Otherwise, check for (2) |
2144 | llvm::SmallString<128> SysrootUsr = Sysroot; |
2145 | llvm::sys::path::append(SysrootUsr, "usr", "include", "c++", "v1"); |
2146 | if (getVFS().exists(SysrootUsr)) { |
2147 | addSystemInclude(DriverArgs, CC1Args, SysrootUsr); |
2148 | return; |
2149 | } else if (DriverArgs.hasArg(options::OPT_v)) { |
2150 | llvm::errs() << "ignoring nonexistent directory \"" << SysrootUsr |
2151 | << "\"\n"; |
2152 | } |
2153 | |
2154 | // Otherwise, don't add any path. |
2155 | break; |
2156 | } |
2157 | |
2158 | case ToolChain::CST_Libstdcxx: |
2159 | llvm::SmallString<128> UsrIncludeCxx = Sysroot; |
2160 | llvm::sys::path::append(UsrIncludeCxx, "usr", "include", "c++"); |
2161 | |
2162 | llvm::Triple::ArchType arch = getTriple().getArch(); |
2163 | bool IsBaseFound = true; |
2164 | switch (arch) { |
2165 | default: break; |
2166 | |
2167 | case llvm::Triple::ppc: |
2168 | case llvm::Triple::ppc64: |
2169 | IsBaseFound = AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
2170 | "4.2.1", |
2171 | "powerpc-apple-darwin10", |
2172 | arch == llvm::Triple::ppc64 ? "ppc64" : ""); |
2173 | IsBaseFound |= AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
2174 | "4.0.0", "powerpc-apple-darwin10", |
2175 | arch == llvm::Triple::ppc64 ? "ppc64" : ""); |
2176 | break; |
2177 | |
2178 | case llvm::Triple::x86: |
2179 | case llvm::Triple::x86_64: |
2180 | IsBaseFound = AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
2181 | "4.2.1", |
2182 | "i686-apple-darwin10", |
2183 | arch == llvm::Triple::x86_64 ? "x86_64" : ""); |
2184 | IsBaseFound |= AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
2185 | "4.0.0", "i686-apple-darwin8", |
2186 | ""); |
2187 | break; |
2188 | |
2189 | case llvm::Triple::arm: |
2190 | case llvm::Triple::thumb: |
2191 | IsBaseFound = AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
2192 | "4.2.1", |
2193 | "arm-apple-darwin10", |
2194 | "v7"); |
2195 | IsBaseFound |= AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
2196 | "4.2.1", |
2197 | "arm-apple-darwin10", |
2198 | "v6"); |
2199 | break; |
2200 | |
2201 | case llvm::Triple::aarch64: |
2202 | IsBaseFound = AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args, UsrIncludeCxx, |
2203 | "4.2.1", |
2204 | "arm64-apple-darwin10", |
2205 | ""); |
2206 | break; |
2207 | } |
2208 | |
2209 | if (!IsBaseFound) { |
2210 | getDriver().Diag(diag::warn_drv_libstdcxx_not_found); |
2211 | } |
2212 | |
2213 | break; |
2214 | } |
2215 | } |
2216 | void DarwinClang::AddCXXStdlibLibArgs(const ArgList &Args, |
2217 | ArgStringList &CmdArgs) const { |
2218 | CXXStdlibType Type = GetCXXStdlibType(Args); |
2219 | |
2220 | switch (Type) { |
2221 | case ToolChain::CST_Libcxx: |
2222 | CmdArgs.push_back("-lc++"); |
2223 | break; |
2224 | |
2225 | case ToolChain::CST_Libstdcxx: |
2226 | // Unfortunately, -lstdc++ doesn't always exist in the standard search path; |
2227 | // it was previously found in the gcc lib dir. However, for all the Darwin |
2228 | // platforms we care about it was -lstdc++.6, so we search for that |
2229 | // explicitly if we can't see an obvious -lstdc++ candidate. |
2230 | |
2231 | // Check in the sysroot first. |
2232 | if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { |
2233 | SmallString<128> P(A->getValue()); |
2234 | llvm::sys::path::append(P, "usr", "lib", "libstdc++.dylib"); |
2235 | |
2236 | if (!getVFS().exists(P)) { |
2237 | llvm::sys::path::remove_filename(P); |
2238 | llvm::sys::path::append(P, "libstdc++.6.dylib"); |
2239 | if (getVFS().exists(P)) { |
2240 | CmdArgs.push_back(Args.MakeArgString(P)); |
2241 | return; |
2242 | } |
2243 | } |
2244 | } |
2245 | |
2246 | // Otherwise, look in the root. |
2247 | // FIXME: This should be removed someday when we don't have to care about |
2248 | // 10.6 and earlier, where /usr/lib/libstdc++.dylib does not exist. |
2249 | if (!getVFS().exists("/usr/lib/libstdc++.dylib") && |
2250 | getVFS().exists("/usr/lib/libstdc++.6.dylib")) { |
2251 | CmdArgs.push_back("/usr/lib/libstdc++.6.dylib"); |
2252 | return; |
2253 | } |
2254 | |
2255 | // Otherwise, let the linker search. |
2256 | CmdArgs.push_back("-lstdc++"); |
2257 | break; |
2258 | } |
2259 | } |
2260 | |
2261 | void DarwinClang::AddCCKextLibArgs(const ArgList &Args, |
2262 | ArgStringList &CmdArgs) const { |
2263 | // For Darwin platforms, use the compiler-rt-based support library |
2264 | // instead of the gcc-provided one (which is also incidentally |
2265 | // only present in the gcc lib dir, which makes it hard to find). |
2266 | |
2267 | SmallString<128> P(getDriver().ResourceDir); |
2268 | llvm::sys::path::append(P, "lib", "darwin"); |
2269 | |
2270 | // Use the newer cc_kext for iOS ARM after 6.0. |
2271 | if (isTargetWatchOS()) { |
2272 | llvm::sys::path::append(P, "libclang_rt.cc_kext_watchos.a"); |
2273 | } else if (isTargetTvOS()) { |
2274 | llvm::sys::path::append(P, "libclang_rt.cc_kext_tvos.a"); |
2275 | } else if (isTargetIPhoneOS()) { |
2276 | llvm::sys::path::append(P, "libclang_rt.cc_kext_ios.a"); |
2277 | } else { |
2278 | llvm::sys::path::append(P, "libclang_rt.cc_kext.a"); |
2279 | } |
2280 | |
2281 | // For now, allow missing resource libraries to support developers who may |
2282 | // not have compiler-rt checked out or integrated into their build. |
2283 | if (getVFS().exists(P)) |
2284 | CmdArgs.push_back(Args.MakeArgString(P)); |
2285 | } |
2286 | |
2287 | DerivedArgList *MachO::TranslateArgs(const DerivedArgList &Args, |
2288 | StringRef BoundArch, |
2289 | Action::OffloadKind) const { |
2290 | DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs()); |
2291 | const OptTable &Opts = getDriver().getOpts(); |
2292 | |
2293 | // FIXME: We really want to get out of the tool chain level argument |
2294 | // translation business, as it makes the driver functionality much |
2295 | // more opaque. For now, we follow gcc closely solely for the |
2296 | // purpose of easily achieving feature parity & testability. Once we |
2297 | // have something that works, we should reevaluate each translation |
2298 | // and try to push it down into tool specific logic. |
2299 | |
2300 | for (Arg *A : Args) { |
2301 | if (A->getOption().matches(options::OPT_Xarch__)) { |
2302 | // Skip this argument unless the architecture matches either the toolchain |
2303 | // triple arch, or the arch being bound. |
2304 | llvm::Triple::ArchType XarchArch = |
2305 | tools::darwin::getArchTypeForMachOArchName(A->getValue(0)); |
2306 | if (!(XarchArch == getArch() || |
2307 | (!BoundArch.empty() && |
2308 | XarchArch == |
2309 | tools::darwin::getArchTypeForMachOArchName(BoundArch)))) |
2310 | continue; |
2311 | |
2312 | Arg *OriginalArg = A; |
2313 | TranslateXarchArgs(Args, A, DAL); |
2314 | |
2315 | // Linker input arguments require custom handling. The problem is that we |
2316 | // have already constructed the phase actions, so we can not treat them as |
2317 | // "input arguments". |
2318 | if (A->getOption().hasFlag(options::LinkerInput)) { |
2319 | // Convert the argument into individual Zlinker_input_args. |
2320 | for (const char *Value : A->getValues()) { |
2321 | DAL->AddSeparateArg( |
2322 | OriginalArg, Opts.getOption(options::OPT_Zlinker_input), Value); |
2323 | } |
2324 | continue; |
2325 | } |
2326 | } |
2327 | |
2328 | // Sob. These is strictly gcc compatible for the time being. Apple |
2329 | // gcc translates options twice, which means that self-expanding |
2330 | // options add duplicates. |
2331 | switch ((options::ID)A->getOption().getID()) { |
2332 | default: |
2333 | DAL->append(A); |
2334 | break; |
2335 | |
2336 | case options::OPT_mkernel: |
2337 | case options::OPT_fapple_kext: |
2338 | DAL->append(A); |
2339 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_static)); |
2340 | break; |
2341 | |
2342 | case options::OPT_dependency_file: |
2343 | DAL->AddSeparateArg(A, Opts.getOption(options::OPT_MF), A->getValue()); |
2344 | break; |
2345 | |
2346 | case options::OPT_gfull: |
2347 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); |
2348 | DAL->AddFlagArg( |
2349 | A, Opts.getOption(options::OPT_fno_eliminate_unused_debug_symbols)); |
2350 | break; |
2351 | |
2352 | case options::OPT_gused: |
2353 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); |
2354 | DAL->AddFlagArg( |
2355 | A, Opts.getOption(options::OPT_feliminate_unused_debug_symbols)); |
2356 | break; |
2357 | |
2358 | case options::OPT_shared: |
2359 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_dynamiclib)); |
2360 | break; |
2361 | |
2362 | case options::OPT_fconstant_cfstrings: |
2363 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_mconstant_cfstrings)); |
2364 | break; |
2365 | |
2366 | case options::OPT_fno_constant_cfstrings: |
2367 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_constant_cfstrings)); |
2368 | break; |
2369 | |
2370 | case options::OPT_Wnonportable_cfstrings: |
2371 | DAL->AddFlagArg(A, |
2372 | Opts.getOption(options::OPT_mwarn_nonportable_cfstrings)); |
2373 | break; |
2374 | |
2375 | case options::OPT_Wno_nonportable_cfstrings: |
2376 | DAL->AddFlagArg( |
2377 | A, Opts.getOption(options::OPT_mno_warn_nonportable_cfstrings)); |
2378 | break; |
2379 | |
2380 | case options::OPT_fpascal_strings: |
2381 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_mpascal_strings)); |
2382 | break; |
2383 | |
2384 | case options::OPT_fno_pascal_strings: |
2385 | DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_pascal_strings)); |
2386 | break; |
2387 | } |
2388 | } |
2389 | |
2390 | // Add the arch options based on the particular spelling of -arch, to match |
2391 | // how the driver driver works. |
2392 | if (!BoundArch.empty()) { |
2393 | StringRef Name = BoundArch; |
2394 | const Option MCpu = Opts.getOption(options::OPT_mcpu_EQ); |
2395 | const Option MArch = Opts.getOption(clang::driver::options::OPT_march_EQ); |
2396 | |
2397 | // This code must be kept in sync with LLVM's getArchTypeForDarwinArch, |
2398 | // which defines the list of which architectures we accept. |
2399 | if (Name == "ppc") |
2400 | ; |
2401 | else if (Name == "ppc601") |
2402 | DAL->AddJoinedArg(nullptr, MCpu, "601"); |
2403 | else if (Name == "ppc603") |
2404 | DAL->AddJoinedArg(nullptr, MCpu, "603"); |
2405 | else if (Name == "ppc604") |
2406 | DAL->AddJoinedArg(nullptr, MCpu, "604"); |
2407 | else if (Name == "ppc604e") |
2408 | DAL->AddJoinedArg(nullptr, MCpu, "604e"); |
2409 | else if (Name == "ppc750") |
2410 | DAL->AddJoinedArg(nullptr, MCpu, "750"); |
2411 | else if (Name == "ppc7400") |
2412 | DAL->AddJoinedArg(nullptr, MCpu, "7400"); |
2413 | else if (Name == "ppc7450") |
2414 | DAL->AddJoinedArg(nullptr, MCpu, "7450"); |
2415 | else if (Name == "ppc970") |
2416 | DAL->AddJoinedArg(nullptr, MCpu, "970"); |
2417 | |
2418 | else if (Name == "ppc64" || Name == "ppc64le") |
2419 | DAL->AddFlagArg(nullptr, Opts.getOption(options::OPT_m64)); |
2420 | |
2421 | else if (Name == "i386") |
2422 | ; |
2423 | else if (Name == "i486") |
2424 | DAL->AddJoinedArg(nullptr, MArch, "i486"); |
2425 | else if (Name == "i586") |
2426 | DAL->AddJoinedArg(nullptr, MArch, "i586"); |
2427 | else if (Name == "i686") |
2428 | DAL->AddJoinedArg(nullptr, MArch, "i686"); |
2429 | else if (Name == "pentium") |
2430 | DAL->AddJoinedArg(nullptr, MArch, "pentium"); |
2431 | else if (Name == "pentium2") |
2432 | DAL->AddJoinedArg(nullptr, MArch, "pentium2"); |
2433 | else if (Name == "pentpro") |
2434 | DAL->AddJoinedArg(nullptr, MArch, "pentiumpro"); |
2435 | else if (Name == "pentIIm3") |
2436 | DAL->AddJoinedArg(nullptr, MArch, "pentium2"); |
2437 | |
2438 | else if (Name == "x86_64" || Name == "x86_64h") |
2439 | DAL->AddFlagArg(nullptr, Opts.getOption(options::OPT_m64)); |
2440 | |
2441 | else if (Name == "arm") |
2442 | DAL->AddJoinedArg(nullptr, MArch, "armv4t"); |
2443 | else if (Name == "armv4t") |
2444 | DAL->AddJoinedArg(nullptr, MArch, "armv4t"); |
2445 | else if (Name == "armv5") |
2446 | DAL->AddJoinedArg(nullptr, MArch, "armv5tej"); |
2447 | else if (Name == "xscale") |
2448 | DAL->AddJoinedArg(nullptr, MArch, "xscale"); |
2449 | else if (Name == "armv6") |
2450 | DAL->AddJoinedArg(nullptr, MArch, "armv6k"); |
2451 | else if (Name == "armv6m") |
2452 | DAL->AddJoinedArg(nullptr, MArch, "armv6m"); |
2453 | else if (Name == "armv7") |
2454 | DAL->AddJoinedArg(nullptr, MArch, "armv7a"); |
2455 | else if (Name == "armv7em") |
2456 | DAL->AddJoinedArg(nullptr, MArch, "armv7em"); |
2457 | else if (Name == "armv7k") |
2458 | DAL->AddJoinedArg(nullptr, MArch, "armv7k"); |
2459 | else if (Name == "armv7m") |
2460 | DAL->AddJoinedArg(nullptr, MArch, "armv7m"); |
2461 | else if (Name == "armv7s") |
2462 | DAL->AddJoinedArg(nullptr, MArch, "armv7s"); |
2463 | } |
2464 | |
2465 | return DAL; |
2466 | } |
2467 | |
2468 | void MachO::AddLinkRuntimeLibArgs(const ArgList &Args, |
2469 | ArgStringList &CmdArgs, |
2470 | bool ForceLinkBuiltinRT) const { |
2471 | // Embedded targets are simple at the moment, not supporting sanitizers and |
2472 | // with different libraries for each member of the product { static, PIC } x |
2473 | // { hard-float, soft-float } |
2474 | llvm::SmallString<32> CompilerRT = StringRef(""); |
2475 | CompilerRT += |
2476 | (tools::arm::getARMFloatABI(*this, Args) == tools::arm::FloatABI::Hard) |
2477 | ? "hard" |
2478 | : "soft"; |
2479 | CompilerRT += Args.hasArg(options::OPT_fPIC) ? "_pic" : "_static"; |
2480 | |
2481 | AddLinkRuntimeLib(Args, CmdArgs, CompilerRT, RLO_IsEmbedded); |
2482 | } |
2483 | |
2484 | bool Darwin::isAlignedAllocationUnavailable() const { |
2485 | llvm::Triple::OSType OS; |
2486 | |
2487 | if (isTargetMacCatalyst()) |
2488 | return TargetVersion < alignedAllocMinVersion(llvm::Triple::MacOSX); |
2489 | switch (TargetPlatform) { |
2490 | case MacOS: // Earlier than 10.13. |
2491 | OS = llvm::Triple::MacOSX; |
2492 | break; |
2493 | case IPhoneOS: |
2494 | OS = llvm::Triple::IOS; |
2495 | break; |
2496 | case TvOS: // Earlier than 11.0. |
2497 | OS = llvm::Triple::TvOS; |
2498 | break; |
2499 | case WatchOS: // Earlier than 4.0. |
2500 | OS = llvm::Triple::WatchOS; |
2501 | break; |
2502 | } |
2503 | |
2504 | return TargetVersion < alignedAllocMinVersion(OS); |
2505 | } |
2506 | |
2507 | void Darwin::addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, |
2508 | llvm::opt::ArgStringList &CC1Args, |
2509 | Action::OffloadKind DeviceOffloadKind) const { |
2510 | // Pass "-faligned-alloc-unavailable" only when the user hasn't manually |
2511 | // enabled or disabled aligned allocations. |
2512 | if (!DriverArgs.hasArgNoClaim(options::OPT_faligned_allocation, |
2513 | options::OPT_fno_aligned_allocation) && |
2514 | isAlignedAllocationUnavailable()) |
2515 | CC1Args.push_back("-faligned-alloc-unavailable"); |
2516 | |
2517 | if (SDKInfo) { |
2518 | /// Pass the SDK version to the compiler when the SDK information is |
2519 | /// available. |
2520 | auto EmitTargetSDKVersionArg = [&](const VersionTuple &V) { |
2521 | std::string Arg; |
2522 | llvm::raw_string_ostream OS(Arg); |
2523 | OS << "-target-sdk-version=" << V; |
2524 | CC1Args.push_back(DriverArgs.MakeArgString(OS.str())); |
2525 | }; |
2526 | |
2527 | if (isTargetMacCatalyst()) { |
2528 | if (const auto *MacOStoMacCatalystMapping = SDKInfo->getVersionMapping( |
2529 | DarwinSDKInfo::OSEnvPair::macOStoMacCatalystPair())) { |
2530 | Optional<VersionTuple> SDKVersion = MacOStoMacCatalystMapping->map( |
2531 | SDKInfo->getVersion(), minimumMacCatalystDeploymentTarget(), None); |
2532 | EmitTargetSDKVersionArg( |
2533 | SDKVersion ? *SDKVersion : minimumMacCatalystDeploymentTarget()); |
2534 | } |
2535 | } else { |
2536 | EmitTargetSDKVersionArg(SDKInfo->getVersion()); |
2537 | } |
2538 | } |
2539 | |
2540 | // Enable compatibility mode for NSItemProviderCompletionHandler in |
2541 | // Foundation/NSItemProvider.h. |
2542 | CC1Args.push_back("-fcompatibility-qualified-id-block-type-checking"); |
2543 | |
2544 | // Give static local variables in inline functions hidden visibility when |
2545 | // -fvisibility-inlines-hidden is enabled. |
2546 | if (!DriverArgs.getLastArgNoClaim( |
2547 | options::OPT_fvisibility_inlines_hidden_static_local_var, |
2548 | options::OPT_fno_visibility_inlines_hidden_static_local_var)) |
2549 | CC1Args.push_back("-fvisibility-inlines-hidden-static-local-var"); |
2550 | } |
2551 | |
2552 | DerivedArgList * |
2553 | Darwin::TranslateArgs(const DerivedArgList &Args, StringRef BoundArch, |
2554 | Action::OffloadKind DeviceOffloadKind) const { |
2555 | // First get the generic Apple args, before moving onto Darwin-specific ones. |
2556 | DerivedArgList *DAL = |
2557 | MachO::TranslateArgs(Args, BoundArch, DeviceOffloadKind); |
2558 | const OptTable &Opts = getDriver().getOpts(); |
2559 | |
2560 | // If no architecture is bound, none of the translations here are relevant. |
2561 | if (BoundArch.empty()) |
2562 | return DAL; |
2563 | |
2564 | // Add an explicit version min argument for the deployment target. We do this |
2565 | // after argument translation because -Xarch_ arguments may add a version min |
2566 | // argument. |
2567 | AddDeploymentTarget(*DAL); |
2568 | |
2569 | // For iOS 6, undo the translation to add -static for -mkernel/-fapple-kext. |
2570 | // FIXME: It would be far better to avoid inserting those -static arguments, |
2571 | // but we can't check the deployment target in the translation code until |
2572 | // it is set here. |
2573 | if (isTargetWatchOSBased() || |
2574 | (isTargetIOSBased() && !isIPhoneOSVersionLT(6, 0))) { |
2575 | for (ArgList::iterator it = DAL->begin(), ie = DAL->end(); it != ie; ) { |
2576 | Arg *A = *it; |
2577 | ++it; |
2578 | if (A->getOption().getID() != options::OPT_mkernel && |
2579 | A->getOption().getID() != options::OPT_fapple_kext) |
2580 | continue; |
2581 | assert(it != ie && "unexpected argument translation")((void)0); |
2582 | A = *it; |
Value stored to 'A' is never read | |
2583 | assert(A->getOption().getID() == options::OPT_static &&((void)0) |
2584 | "missing expected -static argument")((void)0); |
2585 | *it = nullptr; |
2586 | ++it; |
2587 | } |
2588 | } |
2589 | |
2590 | if (!Args.getLastArg(options::OPT_stdlib_EQ) && |
2591 | GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) |
2592 | DAL->AddJoinedArg(nullptr, Opts.getOption(options::OPT_stdlib_EQ), |
2593 | "libc++"); |
2594 | |
2595 | // Validate the C++ standard library choice. |
2596 | CXXStdlibType Type = GetCXXStdlibType(*DAL); |
2597 | if (Type == ToolChain::CST_Libcxx) { |
2598 | // Check whether the target provides libc++. |
2599 | StringRef where; |
2600 | |
2601 | // Complain about targeting iOS < 5.0 in any way. |
2602 | if (isTargetIOSBased() && isIPhoneOSVersionLT(5, 0)) |
2603 | where = "iOS 5.0"; |
2604 | |
2605 | if (where != StringRef()) { |
2606 | getDriver().Diag(clang::diag::err_drv_invalid_libcxx_deployment) << where; |
2607 | } |
2608 | } |
2609 | |
2610 | auto Arch = tools::darwin::getArchTypeForMachOArchName(BoundArch); |
2611 | if ((Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)) { |
2612 | if (Args.hasFlag(options::OPT_fomit_frame_pointer, |
2613 | options::OPT_fno_omit_frame_pointer, false)) |
2614 | getDriver().Diag(clang::diag::warn_drv_unsupported_opt_for_target) |
2615 | << "-fomit-frame-pointer" << BoundArch; |
2616 | } |
2617 | |
2618 | return DAL; |
2619 | } |
2620 | |
2621 | bool MachO::IsUnwindTablesDefault(const ArgList &Args) const { |
2622 | // Unwind tables are not emitted if -fno-exceptions is supplied (except when |
2623 | // targeting x86_64). |
2624 | return getArch() == llvm::Triple::x86_64 || |
2625 | (GetExceptionModel(Args) != llvm::ExceptionHandling::SjLj && |
2626 | Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, |
2627 | true)); |
2628 | } |
2629 | |
2630 | bool MachO::UseDwarfDebugFlags() const { |
2631 | if (const char *S = ::getenv("RC_DEBUG_OPTIONS")) |
2632 | return S[0] != '\0'; |
2633 | return false; |
2634 | } |
2635 | |
2636 | llvm::ExceptionHandling Darwin::GetExceptionModel(const ArgList &Args) const { |
2637 | // Darwin uses SjLj exceptions on ARM. |
2638 | if (getTriple().getArch() != llvm::Triple::arm && |
2639 | getTriple().getArch() != llvm::Triple::thumb) |
2640 | return llvm::ExceptionHandling::None; |
2641 | |
2642 | // Only watchOS uses the new DWARF/Compact unwinding method. |
2643 | llvm::Triple Triple(ComputeLLVMTriple(Args)); |
2644 | if (Triple.isWatchABI()) |
2645 | return llvm::ExceptionHandling::DwarfCFI; |
2646 | |
2647 | return llvm::ExceptionHandling::SjLj; |
2648 | } |
2649 | |
2650 | bool Darwin::SupportsEmbeddedBitcode() const { |
2651 | assert(TargetInitialized && "Target not initialized!")((void)0); |
2652 | if (isTargetIPhoneOS() && isIPhoneOSVersionLT(6, 0)) |
2653 | return false; |
2654 | return true; |
2655 | } |
2656 | |
2657 | bool MachO::isPICDefault() const { return true; } |
2658 | |
2659 | bool MachO::isPIEDefault() const { return false; } |
2660 | |
2661 | bool MachO::isPICDefaultForced() const { |
2662 | return (getArch() == llvm::Triple::x86_64 || |
2663 | getArch() == llvm::Triple::aarch64); |
2664 | } |
2665 | |
2666 | bool MachO::SupportsProfiling() const { |
2667 | // Profiling instrumentation is only supported on x86. |
2668 | return getTriple().isX86(); |
2669 | } |
2670 | |
2671 | void Darwin::addMinVersionArgs(const ArgList &Args, |
2672 | ArgStringList &CmdArgs) const { |
2673 | VersionTuple TargetVersion = getTripleTargetVersion(); |
2674 | |
2675 | if (isTargetWatchOS()) |
2676 | CmdArgs.push_back("-watchos_version_min"); |
2677 | else if (isTargetWatchOSSimulator()) |
2678 | CmdArgs.push_back("-watchos_simulator_version_min"); |
2679 | else if (isTargetTvOS()) |
2680 | CmdArgs.push_back("-tvos_version_min"); |
2681 | else if (isTargetTvOSSimulator()) |
2682 | CmdArgs.push_back("-tvos_simulator_version_min"); |
2683 | else if (isTargetIOSSimulator()) |
2684 | CmdArgs.push_back("-ios_simulator_version_min"); |
2685 | else if (isTargetIOSBased()) |
2686 | CmdArgs.push_back("-iphoneos_version_min"); |
2687 | else if (isTargetMacCatalyst()) |
2688 | CmdArgs.push_back("-maccatalyst_version_min"); |
2689 | else { |
2690 | assert(isTargetMacOS() && "unexpected target")((void)0); |
2691 | CmdArgs.push_back("-macosx_version_min"); |
2692 | } |
2693 | |
2694 | VersionTuple MinTgtVers = getEffectiveTriple().getMinimumSupportedOSVersion(); |
2695 | if (!MinTgtVers.empty() && MinTgtVers > TargetVersion) |
2696 | TargetVersion = MinTgtVers; |
2697 | CmdArgs.push_back(Args.MakeArgString(TargetVersion.getAsString())); |
2698 | } |
2699 | |
2700 | static const char *getPlatformName(Darwin::DarwinPlatformKind Platform, |
2701 | Darwin::DarwinEnvironmentKind Environment) { |
2702 | switch (Platform) { |
2703 | case Darwin::MacOS: |
2704 | return "macos"; |
2705 | case Darwin::IPhoneOS: |
2706 | if (Environment == Darwin::MacCatalyst) |
2707 | return "mac catalyst"; |
2708 | return "ios"; |
2709 | case Darwin::TvOS: |
2710 | return "tvos"; |
2711 | case Darwin::WatchOS: |
2712 | return "watchos"; |
2713 | } |
2714 | llvm_unreachable("invalid platform")__builtin_unreachable(); |
2715 | } |
2716 | |
2717 | void Darwin::addPlatformVersionArgs(const llvm::opt::ArgList &Args, |
2718 | llvm::opt::ArgStringList &CmdArgs) const { |
2719 | // -platform_version <platform> <target_version> <sdk_version> |
2720 | // Both the target and SDK version support only up to 3 components. |
2721 | CmdArgs.push_back("-platform_version"); |
2722 | std::string PlatformName = getPlatformName(TargetPlatform, TargetEnvironment); |
2723 | if (TargetEnvironment == Darwin::Simulator) |
2724 | PlatformName += "-simulator"; |
2725 | CmdArgs.push_back(Args.MakeArgString(PlatformName)); |
2726 | VersionTuple TargetVersion = getTripleTargetVersion().withoutBuild(); |
2727 | VersionTuple MinTgtVers = getEffectiveTriple().getMinimumSupportedOSVersion(); |
2728 | if (!MinTgtVers.empty() && MinTgtVers > TargetVersion) |
2729 | TargetVersion = MinTgtVers; |
2730 | CmdArgs.push_back(Args.MakeArgString(TargetVersion.getAsString())); |
2731 | |
2732 | if (isTargetMacCatalyst()) { |
2733 | // Mac Catalyst programs must use the appropriate iOS SDK version |
2734 | // that corresponds to the macOS SDK version used for the compilation. |
2735 | Optional<VersionTuple> iOSSDKVersion; |
2736 | if (SDKInfo) { |
2737 | if (const auto *MacOStoMacCatalystMapping = SDKInfo->getVersionMapping( |
2738 | DarwinSDKInfo::OSEnvPair::macOStoMacCatalystPair())) { |
2739 | iOSSDKVersion = MacOStoMacCatalystMapping->map( |
2740 | SDKInfo->getVersion().withoutBuild(), |
2741 | minimumMacCatalystDeploymentTarget(), None); |
2742 | } |
2743 | } |
2744 | CmdArgs.push_back(Args.MakeArgString( |
2745 | (iOSSDKVersion ? *iOSSDKVersion : minimumMacCatalystDeploymentTarget()) |
2746 | .getAsString())); |
2747 | return; |
2748 | } |
2749 | |
2750 | if (SDKInfo) { |
2751 | VersionTuple SDKVersion = SDKInfo->getVersion().withoutBuild(); |
2752 | CmdArgs.push_back(Args.MakeArgString(SDKVersion.getAsString())); |
2753 | } else { |
2754 | // Use an SDK version that's matching the deployment target if the SDK |
2755 | // version is missing. This is preferred over an empty SDK version (0.0.0) |
2756 | // as the system's runtime might expect the linked binary to contain a |
2757 | // valid SDK version in order for the binary to work correctly. It's |
2758 | // reasonable to use the deployment target version as a proxy for the |
2759 | // SDK version because older SDKs don't guarantee support for deployment |
2760 | // targets newer than the SDK versions, so that rules out using some |
2761 | // predetermined older SDK version, which leaves the deployment target |
2762 | // version as the only reasonable choice. |
2763 | CmdArgs.push_back(Args.MakeArgString(TargetVersion.getAsString())); |
2764 | } |
2765 | } |
2766 | |
2767 | // Add additional link args for the -dynamiclib option. |
2768 | static void addDynamicLibLinkArgs(const Darwin &D, const ArgList &Args, |
2769 | ArgStringList &CmdArgs) { |
2770 | // Derived from darwin_dylib1 spec. |
2771 | if (D.isTargetIPhoneOS()) { |
2772 | if (D.isIPhoneOSVersionLT(3, 1)) |
2773 | CmdArgs.push_back("-ldylib1.o"); |
2774 | return; |
2775 | } |
2776 | |
2777 | if (!D.isTargetMacOS()) |
2778 | return; |
2779 | if (D.isMacosxVersionLT(10, 5)) |
2780 | CmdArgs.push_back("-ldylib1.o"); |
2781 | else if (D.isMacosxVersionLT(10, 6)) |
2782 | CmdArgs.push_back("-ldylib1.10.5.o"); |
2783 | } |
2784 | |
2785 | // Add additional link args for the -bundle option. |
2786 | static void addBundleLinkArgs(const Darwin &D, const ArgList &Args, |
2787 | ArgStringList &CmdArgs) { |
2788 | if (Args.hasArg(options::OPT_static)) |
2789 | return; |
2790 | // Derived from darwin_bundle1 spec. |
2791 | if ((D.isTargetIPhoneOS() && D.isIPhoneOSVersionLT(3, 1)) || |
2792 | (D.isTargetMacOS() && D.isMacosxVersionLT(10, 6))) |
2793 | CmdArgs.push_back("-lbundle1.o"); |
2794 | } |
2795 | |
2796 | // Add additional link args for the -pg option. |
2797 | static void addPgProfilingLinkArgs(const Darwin &D, const ArgList &Args, |
2798 | ArgStringList &CmdArgs) { |
2799 | if (D.isTargetMacOS() && D.isMacosxVersionLT(10, 9)) { |
2800 | if (Args.hasArg(options::OPT_static) || Args.hasArg(options::OPT_object) || |
2801 | Args.hasArg(options::OPT_preload)) { |
2802 | CmdArgs.push_back("-lgcrt0.o"); |
2803 | } else { |
2804 | CmdArgs.push_back("-lgcrt1.o"); |
2805 | |
2806 | // darwin_crt2 spec is empty. |
2807 | } |
2808 | // By default on OS X 10.8 and later, we don't link with a crt1.o |
2809 | // file and the linker knows to use _main as the entry point. But, |
2810 | // when compiling with -pg, we need to link with the gcrt1.o file, |
2811 | // so pass the -no_new_main option to tell the linker to use the |
2812 | // "start" symbol as the entry point. |
2813 | if (!D.isMacosxVersionLT(10, 8)) |
2814 | CmdArgs.push_back("-no_new_main"); |
2815 | } else { |
2816 | D.getDriver().Diag(diag::err_drv_clang_unsupported_opt_pg_darwin) |
2817 | << D.isTargetMacOSBased(); |
2818 | } |
2819 | } |
2820 | |
2821 | static void addDefaultCRTLinkArgs(const Darwin &D, const ArgList &Args, |
2822 | ArgStringList &CmdArgs) { |
2823 | // Derived from darwin_crt1 spec. |
2824 | if (D.isTargetIPhoneOS()) { |
2825 | if (D.getArch() == llvm::Triple::aarch64) |
2826 | ; // iOS does not need any crt1 files for arm64 |
2827 | else if (D.isIPhoneOSVersionLT(3, 1)) |
2828 | CmdArgs.push_back("-lcrt1.o"); |
2829 | else if (D.isIPhoneOSVersionLT(6, 0)) |
2830 | CmdArgs.push_back("-lcrt1.3.1.o"); |
2831 | return; |
2832 | } |
2833 | |
2834 | if (!D.isTargetMacOS()) |
2835 | return; |
2836 | if (D.isMacosxVersionLT(10, 5)) |
2837 | CmdArgs.push_back("-lcrt1.o"); |
2838 | else if (D.isMacosxVersionLT(10, 6)) |
2839 | CmdArgs.push_back("-lcrt1.10.5.o"); |
2840 | else if (D.isMacosxVersionLT(10, 8)) |
2841 | CmdArgs.push_back("-lcrt1.10.6.o"); |
2842 | // darwin_crt2 spec is empty. |
2843 | } |
2844 | |
2845 | void Darwin::addStartObjectFileArgs(const ArgList &Args, |
2846 | ArgStringList &CmdArgs) const { |
2847 | // Derived from startfile spec. |
2848 | if (Args.hasArg(options::OPT_dynamiclib)) |
2849 | addDynamicLibLinkArgs(*this, Args, CmdArgs); |
2850 | else if (Args.hasArg(options::OPT_bundle)) |
2851 | addBundleLinkArgs(*this, Args, CmdArgs); |
2852 | else if (Args.hasArg(options::OPT_pg) && SupportsProfiling()) |
2853 | addPgProfilingLinkArgs(*this, Args, CmdArgs); |
2854 | else if (Args.hasArg(options::OPT_static) || |
2855 | Args.hasArg(options::OPT_object) || |
2856 | Args.hasArg(options::OPT_preload)) |
2857 | CmdArgs.push_back("-lcrt0.o"); |
2858 | else |
2859 | addDefaultCRTLinkArgs(*this, Args, CmdArgs); |
2860 | |
2861 | if (isTargetMacOS() && Args.hasArg(options::OPT_shared_libgcc) && |
2862 | isMacosxVersionLT(10, 5)) { |
2863 | const char *Str = Args.MakeArgString(GetFilePath("crt3.o")); |
2864 | CmdArgs.push_back(Str); |
2865 | } |
2866 | } |
2867 | |
2868 | void Darwin::CheckObjCARC() const { |
2869 | if (isTargetIOSBased() || isTargetWatchOSBased() || |
2870 | (isTargetMacOSBased() && !isMacosxVersionLT(10, 6))) |
2871 | return; |
2872 | getDriver().Diag(diag::err_arc_unsupported_on_toolchain); |
2873 | } |
2874 | |
2875 | SanitizerMask Darwin::getSupportedSanitizers() const { |
2876 | const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64; |
2877 | const bool IsAArch64 = getTriple().getArch() == llvm::Triple::aarch64; |
2878 | SanitizerMask Res = ToolChain::getSupportedSanitizers(); |
2879 | Res |= SanitizerKind::Address; |
2880 | Res |= SanitizerKind::PointerCompare; |
2881 | Res |= SanitizerKind::PointerSubtract; |
2882 | Res |= SanitizerKind::Leak; |
2883 | Res |= SanitizerKind::Fuzzer; |
2884 | Res |= SanitizerKind::FuzzerNoLink; |
2885 | Res |= SanitizerKind::Function; |
2886 | Res |= SanitizerKind::ObjCCast; |
2887 | |
2888 | // Prior to 10.9, macOS shipped a version of the C++ standard library without |
2889 | // C++11 support. The same is true of iOS prior to version 5. These OS'es are |
2890 | // incompatible with -fsanitize=vptr. |
2891 | if (!(isTargetMacOSBased() && isMacosxVersionLT(10, 9)) && |
2892 | !(isTargetIPhoneOS() && isIPhoneOSVersionLT(5, 0))) |
2893 | Res |= SanitizerKind::Vptr; |
2894 | |
2895 | if ((IsX86_64 || IsAArch64) && isTargetMacOSBased()) { |
2896 | Res |= SanitizerKind::Thread; |
2897 | } else if (isTargetIOSSimulator() || isTargetTvOSSimulator()) { |
2898 | if (IsX86_64) |
2899 | Res |= SanitizerKind::Thread; |
2900 | } |
2901 | return Res; |
2902 | } |
2903 | |
2904 | void Darwin::printVerboseInfo(raw_ostream &OS) const { |
2905 | CudaInstallation.print(OS); |
2906 | RocmInstallation.print(OS); |
2907 | } |