1//===--- NetBSD.cpp - NetBSD 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 "NetBSD.h"
10#include "Arch/ARM.h"
11#include "Arch/Mips.h"
12#include "Arch/Sparc.h"
13#include "CommonArgs.h"
14#include "clang/Config/config.h"
15#include "clang/Driver/Compilation.h"
16#include "clang/Driver/Driver.h"
17#include "clang/Driver/Options.h"
18#include "clang/Driver/SanitizerArgs.h"
19#include "llvm/Option/ArgList.h"
20#include "llvm/Support/VirtualFileSystem.h"
21
22using namespace clang::driver;
23using namespace clang::driver::tools;
24using namespace clang::driver::toolchains;
25using namespace clang;
26using namespace llvm::opt;
27
28void netbsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
29 const InputInfo &Output,
30 const InputInfoList &Inputs,
31 const ArgList &Args,
32 const char *LinkingOutput) const {
33 const auto &ToolChain = static_cast<const NetBSD &>(getToolChain());
34 const Driver &D = ToolChain.getDriver();
35 const llvm::Triple &Triple = ToolChain.getTriple();
36 ArgStringList CmdArgs;
37
38 claimNoWarnArgs(Args);
39
40 // GNU as needs different flags for creating the correct output format
41 // on architectures with different ABIs or optional feature sets.
42 switch (ToolChain.getArch()) {
43 case llvm::Triple::x86:
44 CmdArgs.push_back(Elt: "--32");
45 break;
46 case llvm::Triple::arm:
47 case llvm::Triple::armeb:
48 case llvm::Triple::thumb:
49 case llvm::Triple::thumbeb: {
50 StringRef MArch, MCPU;
51 arm::getARMArchCPUFromArgs(Args, Arch&: MArch, CPU&: MCPU, /*FromAs*/ true);
52 std::string Arch = arm::getARMTargetCPU(CPU: MCPU, Arch: MArch, Triple);
53 CmdArgs.push_back(Elt: Args.MakeArgString(Str: "-mcpu=" + Arch));
54 break;
55 }
56
57 case llvm::Triple::mips:
58 case llvm::Triple::mipsel:
59 case llvm::Triple::mips64:
60 case llvm::Triple::mips64el: {
61 StringRef CPUName;
62 StringRef ABIName;
63 mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName);
64
65 CmdArgs.push_back(Elt: "-march");
66 CmdArgs.push_back(Elt: CPUName.data());
67
68 CmdArgs.push_back(Elt: "-mabi");
69 CmdArgs.push_back(Elt: mips::getGnuCompatibleMipsABIName(ABI: ABIName).data());
70
71 if (Triple.isLittleEndian())
72 CmdArgs.push_back(Elt: "-EL");
73 else
74 CmdArgs.push_back(Elt: "-EB");
75
76 AddAssemblerKPIC(ToolChain, Args, CmdArgs);
77 break;
78 }
79
80 case llvm::Triple::sparc: {
81 CmdArgs.push_back(Elt: "-32");
82 std::string CPU = getCPUName(D, Args, T: Triple);
83 CmdArgs.push_back(Elt: sparc::getSparcAsmModeForCPU(Name: CPU, Triple));
84 AddAssemblerKPIC(ToolChain, Args, CmdArgs);
85 break;
86 }
87
88 case llvm::Triple::sparcv9: {
89 CmdArgs.push_back(Elt: "-64");
90 std::string CPU = getCPUName(D, Args, T: Triple);
91 CmdArgs.push_back(Elt: sparc::getSparcAsmModeForCPU(Name: CPU, Triple));
92 AddAssemblerKPIC(ToolChain, Args, CmdArgs);
93 break;
94 }
95
96 default:
97 break;
98 }
99
100 Args.AddAllArgValues(Output&: CmdArgs, options::Id0: OPT_Wa_COMMA, options::Id1: OPT_Xassembler);
101
102 CmdArgs.push_back(Elt: "-o");
103 CmdArgs.push_back(Elt: Output.getFilename());
104
105 for (const auto &II : Inputs)
106 CmdArgs.push_back(Elt: II.getFilename());
107
108 const char *Exec = Args.MakeArgString(Str: (ToolChain.GetProgramPath(Name: "as")));
109 C.addCommand(C: std::make_unique<Command>(args: JA, args: *this,
110 args: ResponseFileSupport::AtFileCurCP(),
111 args&: Exec, args&: CmdArgs, args: Inputs, args: Output));
112}
113
114void netbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
115 const InputInfo &Output,
116 const InputInfoList &Inputs,
117 const ArgList &Args,
118 const char *LinkingOutput) const {
119 const auto &ToolChain = static_cast<const NetBSD &>(getToolChain());
120 const Driver &D = ToolChain.getDriver();
121 const llvm::Triple &Triple = ToolChain.getTriple();
122 const llvm::Triple::ArchType Arch = ToolChain.getArch();
123 const bool Static = Args.hasArg(options::OPT_static);
124 const bool Shared = Args.hasArg(options::OPT_shared);
125 const bool Pie = Args.hasArg(options::OPT_pie);
126 ArgStringList CmdArgs;
127
128 if (!D.SysRoot.empty())
129 CmdArgs.push_back(Elt: Args.MakeArgString(Str: "--sysroot=" + D.SysRoot));
130
131 CmdArgs.push_back(Elt: "--eh-frame-hdr");
132 if (Static) {
133 CmdArgs.push_back(Elt: "-Bstatic");
134 if (Pie) {
135 Args.AddAllArgs(Output&: CmdArgs, options::Id0: OPT_pie);
136 CmdArgs.push_back(Elt: "--no-dynamic-linker");
137 }
138 } else {
139 if (Args.hasArg(options::OPT_rdynamic))
140 CmdArgs.push_back(Elt: "-export-dynamic");
141 if (Shared) {
142 CmdArgs.push_back(Elt: "-shared");
143 } else if (!Args.hasArg(options::OPT_r)) {
144 Args.AddAllArgs(Output&: CmdArgs, options::Id0: OPT_pie);
145 CmdArgs.push_back(Elt: "-dynamic-linker");
146 CmdArgs.push_back(Elt: "/libexec/ld.elf_so");
147 }
148 }
149
150 // Many NetBSD architectures support more than one ABI.
151 // Determine the correct emulation for ld.
152 switch (Arch) {
153 case llvm::Triple::x86:
154 CmdArgs.push_back(Elt: "-m");
155 CmdArgs.push_back(Elt: "elf_i386");
156 break;
157 case llvm::Triple::arm:
158 case llvm::Triple::thumb:
159 CmdArgs.push_back(Elt: "-m");
160 switch (Triple.getEnvironment()) {
161 case llvm::Triple::EABI:
162 case llvm::Triple::GNUEABI:
163 CmdArgs.push_back(Elt: "armelf_nbsd_eabi");
164 break;
165 case llvm::Triple::EABIHF:
166 case llvm::Triple::GNUEABIHF:
167 CmdArgs.push_back(Elt: "armelf_nbsd_eabihf");
168 break;
169 default:
170 CmdArgs.push_back(Elt: "armelf_nbsd");
171 break;
172 }
173 break;
174 case llvm::Triple::armeb:
175 case llvm::Triple::thumbeb:
176 arm::appendBE8LinkFlag(Args, CmdArgs, Triple: ToolChain.getEffectiveTriple());
177 CmdArgs.push_back(Elt: "-m");
178 switch (Triple.getEnvironment()) {
179 case llvm::Triple::EABI:
180 case llvm::Triple::GNUEABI:
181 CmdArgs.push_back(Elt: "armelfb_nbsd_eabi");
182 break;
183 case llvm::Triple::EABIHF:
184 case llvm::Triple::GNUEABIHF:
185 CmdArgs.push_back(Elt: "armelfb_nbsd_eabihf");
186 break;
187 default:
188 CmdArgs.push_back(Elt: "armelfb_nbsd");
189 break;
190 }
191 break;
192 case llvm::Triple::mips64:
193 case llvm::Triple::mips64el:
194 if (mips::hasMipsAbiArg(Args, Value: "32")) {
195 CmdArgs.push_back(Elt: "-m");
196 if (Arch == llvm::Triple::mips64)
197 CmdArgs.push_back(Elt: "elf32btsmip");
198 else
199 CmdArgs.push_back(Elt: "elf32ltsmip");
200 } else if (mips::hasMipsAbiArg(Args, Value: "64")) {
201 CmdArgs.push_back(Elt: "-m");
202 if (Arch == llvm::Triple::mips64)
203 CmdArgs.push_back(Elt: "elf64btsmip");
204 else
205 CmdArgs.push_back(Elt: "elf64ltsmip");
206 }
207 break;
208 case llvm::Triple::ppc:
209 CmdArgs.push_back(Elt: "-m");
210 CmdArgs.push_back(Elt: "elf32ppc_nbsd");
211 break;
212
213 case llvm::Triple::ppc64:
214 case llvm::Triple::ppc64le:
215 CmdArgs.push_back(Elt: "-m");
216 CmdArgs.push_back(Elt: "elf64ppc");
217 break;
218
219 case llvm::Triple::riscv32:
220 CmdArgs.push_back(Elt: "-m");
221 CmdArgs.push_back(Elt: "elf32lriscv");
222 break;
223
224 case llvm::Triple::riscv64:
225 CmdArgs.push_back(Elt: "-m");
226 CmdArgs.push_back(Elt: "elf64lriscv");
227 break;
228
229 case llvm::Triple::sparc:
230 CmdArgs.push_back(Elt: "-m");
231 CmdArgs.push_back(Elt: "elf32_sparc");
232 break;
233
234 case llvm::Triple::sparcv9:
235 CmdArgs.push_back(Elt: "-m");
236 CmdArgs.push_back(Elt: "elf64_sparc");
237 break;
238
239 default:
240 break;
241 }
242
243 if (Triple.isRISCV()) {
244 CmdArgs.push_back(Elt: "-X");
245 if (Args.hasArg(options::OPT_mno_relax))
246 CmdArgs.push_back(Elt: "--no-relax");
247 }
248
249 assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
250 if (Output.isFilename()) {
251 CmdArgs.push_back(Elt: "-o");
252 CmdArgs.push_back(Elt: Output.getFilename());
253 }
254
255 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
256 options::OPT_r)) {
257 const char *crt0 = nullptr;
258 const char *crtbegin = nullptr;
259 if (!Shared)
260 crt0 = "crt0.o";
261
262 if (Shared || Pie)
263 crtbegin = "crtbeginS.o";
264 else
265 crtbegin = "crtbegin.o";
266
267 if (crt0)
268 CmdArgs.push_back(Elt: Args.MakeArgString(Str: ToolChain.GetFilePath(Name: crt0)));
269 CmdArgs.push_back(Elt: Args.MakeArgString(Str: ToolChain.GetFilePath(Name: "crti.o")));
270 CmdArgs.push_back(Elt: Args.MakeArgString(Str: ToolChain.GetFilePath(Name: crtbegin)));
271 }
272
273 Args.addAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group,
274 options::OPT_s, options::OPT_t});
275 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
276
277 bool NeedsSanitizerDeps = addSanitizerRuntimes(TC: ToolChain, Args, CmdArgs);
278 bool NeedsXRayDeps = addXRayRuntime(TC: ToolChain, Args, CmdArgs);
279 AddLinkerInputs(TC: ToolChain, Inputs, Args, CmdArgs, JA);
280
281 const SanitizerArgs &SanArgs = ToolChain.getSanitizerArgs(JobArgs: Args);
282 if (SanArgs.needsSharedRt()) {
283 CmdArgs.push_back(Elt: "-rpath");
284 CmdArgs.push_back(Elt: Args.MakeArgString(Str: ToolChain.getCompilerRTPath()));
285 }
286
287 bool useLibgcc = true;
288 switch (ToolChain.getArch()) {
289 case llvm::Triple::aarch64:
290 case llvm::Triple::aarch64_be:
291 case llvm::Triple::arm:
292 case llvm::Triple::armeb:
293 case llvm::Triple::thumb:
294 case llvm::Triple::thumbeb:
295 case llvm::Triple::ppc:
296 case llvm::Triple::ppc64:
297 case llvm::Triple::ppc64le:
298 case llvm::Triple::riscv32:
299 case llvm::Triple::riscv64:
300 case llvm::Triple::sparc:
301 case llvm::Triple::sparcv9:
302 case llvm::Triple::x86:
303 case llvm::Triple::x86_64:
304 useLibgcc = false;
305 break;
306 default:
307 break;
308 }
309
310 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
311 options::OPT_r)) {
312 // Use the static OpenMP runtime with -static-openmp
313 bool StaticOpenMP = Args.hasArg(options::OPT_static_openmp) && !Static;
314 addOpenMPRuntime(C, CmdArgs, TC: ToolChain, Args, ForceStaticHostRuntime: StaticOpenMP);
315
316 if (D.CCCIsCXX()) {
317 if (ToolChain.ShouldLinkCXXStdlib(Args))
318 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
319 CmdArgs.push_back(Elt: "-lm");
320 }
321
322 // Silence warnings when linking C code with a C++ '-stdlib' argument.
323 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
324
325 // Additional linker set-up and flags for Fortran. This is required in order
326 // to generate executables. As Fortran runtime depends on the C runtime,
327 // these dependencies need to be listed before the C runtime below (i.e.
328 // AddRunTimeLibs).
329 if (D.IsFlangMode()) {
330 addFortranRuntimeLibraryPath(TC: ToolChain, Args, CmdArgs);
331 addFortranRuntimeLibs(TC: ToolChain, Args, CmdArgs);
332 CmdArgs.push_back(Elt: "-lm");
333 }
334
335 if (NeedsSanitizerDeps)
336 linkSanitizerRuntimeDeps(TC: ToolChain, Args, CmdArgs);
337 if (NeedsXRayDeps)
338 linkXRayRuntimeDeps(TC: ToolChain, Args, CmdArgs);
339 if (Args.hasArg(options::OPT_pthread))
340 CmdArgs.push_back(Elt: "-lpthread");
341 CmdArgs.push_back(Elt: "-lc");
342
343 if (useLibgcc) {
344 if (Static) {
345 // libgcc_eh depends on libc, so resolve as much as possible,
346 // pull in any new requirements from libc and then get the rest
347 // of libgcc.
348 CmdArgs.push_back(Elt: "-lgcc_eh");
349 CmdArgs.push_back(Elt: "-lc");
350 CmdArgs.push_back(Elt: "-lgcc");
351 } else {
352 CmdArgs.push_back(Elt: "-lgcc");
353 CmdArgs.push_back(Elt: "--as-needed");
354 CmdArgs.push_back(Elt: "-lgcc_s");
355 CmdArgs.push_back(Elt: "--no-as-needed");
356 }
357 }
358 }
359
360 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
361 options::OPT_r)) {
362 const char *crtend = nullptr;
363 if (Shared || Pie)
364 crtend = "crtendS.o";
365 else
366 crtend = "crtend.o";
367
368 CmdArgs.push_back(Elt: Args.MakeArgString(Str: ToolChain.GetFilePath(Name: crtend)));
369 CmdArgs.push_back(Elt: Args.MakeArgString(Str: ToolChain.GetFilePath(Name: "crtn.o")));
370 }
371
372 ToolChain.addProfileRTLibs(Args, CmdArgs);
373
374 const char *Exec = Args.MakeArgString(Str: ToolChain.GetLinkerPath());
375 C.addCommand(C: std::make_unique<Command>(args: JA, args: *this,
376 args: ResponseFileSupport::AtFileCurCP(),
377 args&: Exec, args&: CmdArgs, args: Inputs, args: Output));
378}
379
380/// NetBSD - NetBSD tool chain which can call as(1) and ld(1) directly.
381
382NetBSD::NetBSD(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
383 : Generic_ELF(D, Triple, Args) {
384 if (!Args.hasArg(options::OPT_nostdlib)) {
385 // When targeting a 32-bit platform, try the special directory used on
386 // 64-bit hosts, and only fall back to the main library directory if that
387 // doesn't work.
388 // FIXME: It'd be nicer to test if this directory exists, but I'm not sure
389 // what all logic is needed to emulate the '=' prefix here.
390 switch (Triple.getArch()) {
391 case llvm::Triple::x86:
392 getFilePaths().push_back(Elt: concat(Path: getDriver().SysRoot, A: "/usr/lib/i386"));
393 break;
394 case llvm::Triple::arm:
395 case llvm::Triple::armeb:
396 case llvm::Triple::thumb:
397 case llvm::Triple::thumbeb:
398 switch (Triple.getEnvironment()) {
399 case llvm::Triple::EABI:
400 case llvm::Triple::GNUEABI:
401 getFilePaths().push_back(Elt: concat(Path: getDriver().SysRoot, A: "/usr/lib/eabi"));
402 break;
403 case llvm::Triple::EABIHF:
404 case llvm::Triple::GNUEABIHF:
405 getFilePaths().push_back(Elt: concat(Path: getDriver().SysRoot, A: "/usr/lib/eabihf"));
406 break;
407 default:
408 getFilePaths().push_back(Elt: concat(Path: getDriver().SysRoot, A: "/usr/lib/oabi"));
409 break;
410 }
411 break;
412 case llvm::Triple::mips64:
413 case llvm::Triple::mips64el:
414 if (tools::mips::hasMipsAbiArg(Args, Value: "o32"))
415 getFilePaths().push_back(Elt: concat(Path: getDriver().SysRoot, A: "/usr/lib/o32"));
416 else if (tools::mips::hasMipsAbiArg(Args, Value: "64"))
417 getFilePaths().push_back(Elt: concat(Path: getDriver().SysRoot, A: "/usr/lib/64"));
418 break;
419 case llvm::Triple::ppc:
420 getFilePaths().push_back(Elt: concat(Path: getDriver().SysRoot, A: "/usr/lib/powerpc"));
421 break;
422 case llvm::Triple::sparc:
423 getFilePaths().push_back(Elt: concat(Path: getDriver().SysRoot, A: "/usr/lib/sparc"));
424 break;
425 default:
426 break;
427 }
428
429 getFilePaths().push_back(Elt: concat(Path: getDriver().SysRoot, A: "/usr/lib"));
430 }
431}
432
433Tool *NetBSD::buildAssembler() const {
434 return new tools::netbsd::Assembler(*this);
435}
436
437Tool *NetBSD::buildLinker() const { return new tools::netbsd::Linker(*this); }
438
439ToolChain::CXXStdlibType NetBSD::GetDefaultCXXStdlibType() const {
440 switch (getArch()) {
441 case llvm::Triple::aarch64:
442 case llvm::Triple::aarch64_be:
443 case llvm::Triple::arm:
444 case llvm::Triple::armeb:
445 case llvm::Triple::thumb:
446 case llvm::Triple::thumbeb:
447 case llvm::Triple::ppc:
448 case llvm::Triple::ppc64:
449 case llvm::Triple::ppc64le:
450 case llvm::Triple::riscv32:
451 case llvm::Triple::riscv64:
452 case llvm::Triple::sparc:
453 case llvm::Triple::sparcv9:
454 case llvm::Triple::x86:
455 case llvm::Triple::x86_64:
456 return ToolChain::CST_Libcxx;
457 default:
458 break;
459 }
460 return ToolChain::CST_Libstdcxx;
461}
462
463void NetBSD::AddClangSystemIncludeArgs(
464 const llvm::opt::ArgList &DriverArgs,
465 llvm::opt::ArgStringList &CC1Args) const {
466 const Driver &D = getDriver();
467
468 if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
469 return;
470
471 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
472 SmallString<128> Dir(D.ResourceDir);
473 llvm::sys::path::append(path&: Dir, a: "include");
474 addSystemInclude(DriverArgs, CC1Args, Path: Dir.str());
475 }
476
477 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
478 return;
479
480 // Check for configure-time C include directories.
481 StringRef CIncludeDirs(C_INCLUDE_DIRS);
482 if (CIncludeDirs != "") {
483 SmallVector<StringRef, 5> dirs;
484 CIncludeDirs.split(A&: dirs, Separator: ":");
485 for (StringRef dir : dirs) {
486 StringRef Prefix =
487 llvm::sys::path::is_absolute(path: dir) ? StringRef(D.SysRoot) : "";
488 addExternCSystemInclude(DriverArgs, CC1Args, Path: Prefix + dir);
489 }
490 return;
491 }
492
493 addExternCSystemInclude(DriverArgs, CC1Args,
494 Path: concat(Path: D.SysRoot, A: "/usr/include"));
495}
496
497void NetBSD::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
498 llvm::opt::ArgStringList &CC1Args) const {
499 const std::string Candidates[] = {
500 // directory relative to build tree
501 concat(Path: getDriver().Dir, A: "/../include/c++/v1"),
502 // system install with full upstream path
503 concat(Path: getDriver().SysRoot, A: "/usr/include/c++/v1"),
504 // system install from src
505 concat(Path: getDriver().SysRoot, A: "/usr/include/c++"),
506 };
507
508 for (const auto &IncludePath : Candidates) {
509 if (!getVFS().exists(Path: IncludePath + "/__config"))
510 continue;
511
512 // Use the first candidate that looks valid.
513 addSystemInclude(DriverArgs, CC1Args, Path: IncludePath);
514 return;
515 }
516}
517
518void NetBSD::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
519 llvm::opt::ArgStringList &CC1Args) const {
520 addLibStdCXXIncludePaths(IncludeDir: concat(Path: getDriver().SysRoot, A: "/usr/include/g++"), Triple: "", IncludeSuffix: "",
521 DriverArgs, CC1Args);
522}
523
524llvm::ExceptionHandling NetBSD::GetExceptionModel(const ArgList &Args) const {
525 // NetBSD uses Dwarf exceptions on ARM.
526 llvm::Triple::ArchType TArch = getTriple().getArch();
527 if (TArch == llvm::Triple::arm || TArch == llvm::Triple::armeb ||
528 TArch == llvm::Triple::thumb || TArch == llvm::Triple::thumbeb)
529 return llvm::ExceptionHandling::DwarfCFI;
530 return llvm::ExceptionHandling::None;
531}
532
533SanitizerMask NetBSD::getSupportedSanitizers() const {
534 const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
535 const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
536 SanitizerMask Res = ToolChain::getSupportedSanitizers();
537 if (IsX86 || IsX86_64) {
538 Res |= SanitizerKind::Address;
539 Res |= SanitizerKind::PointerCompare;
540 Res |= SanitizerKind::PointerSubtract;
541 Res |= SanitizerKind::Leak;
542 Res |= SanitizerKind::SafeStack;
543 Res |= SanitizerKind::Scudo;
544 Res |= SanitizerKind::Vptr;
545 }
546 if (IsX86_64) {
547 Res |= SanitizerKind::DataFlow;
548 Res |= SanitizerKind::Fuzzer;
549 Res |= SanitizerKind::FuzzerNoLink;
550 Res |= SanitizerKind::HWAddress;
551 Res |= SanitizerKind::KernelAddress;
552 Res |= SanitizerKind::KernelHWAddress;
553 Res |= SanitizerKind::KernelMemory;
554 Res |= SanitizerKind::Memory;
555 Res |= SanitizerKind::Thread;
556 }
557 return Res;
558}
559
560void NetBSD::addClangTargetOptions(const ArgList &DriverArgs,
561 ArgStringList &CC1Args,
562 Action::OffloadKind) const {
563 const SanitizerArgs &SanArgs = getSanitizerArgs(JobArgs: DriverArgs);
564 if (SanArgs.hasAnySanitizer())
565 CC1Args.push_back(Elt: "-D_REENTRANT");
566
567 VersionTuple OsVersion = getTriple().getOSVersion();
568 bool UseInitArrayDefault =
569 OsVersion >= VersionTuple(9) || OsVersion.getMajor() == 0 ||
570 getTriple().getArch() == llvm::Triple::aarch64 ||
571 getTriple().getArch() == llvm::Triple::aarch64_be ||
572 getTriple().getArch() == llvm::Triple::arm ||
573 getTriple().getArch() == llvm::Triple::armeb ||
574 getTriple().getArch() == llvm::Triple::riscv32 ||
575 getTriple().getArch() == llvm::Triple::riscv64;
576
577 if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
578 options::OPT_fno_use_init_array, UseInitArrayDefault))
579 CC1Args.push_back(Elt: "-fno-use-init-array");
580}
581

source code of clang/lib/Driver/ToolChains/NetBSD.cpp