611 lines · cpp
1//===--- AIX.cpp - AIX 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-exception6//7//===----------------------------------------------------------------------===//8 9#include "AIX.h"10#include "clang/Driver/CommonArgs.h"11#include "clang/Driver/Compilation.h"12#include "clang/Driver/SanitizerArgs.h"13#include "clang/Options/Options.h"14#include "llvm/ADT/StringExtras.h"15#include "llvm/Option/ArgList.h"16#include "llvm/ProfileData/InstrProf.h"17#include "llvm/Support/Path.h"18 19#include <set>20 21using AIX = clang::driver::toolchains::AIX;22using namespace clang;23using namespace clang::driver;24using namespace clang::driver::tools;25using namespace clang::driver::toolchains;26 27using namespace llvm::opt;28using namespace llvm::sys;29 30void aix::Assembler::ConstructJob(Compilation &C, const JobAction &JA,31 const InputInfo &Output,32 const InputInfoList &Inputs,33 const ArgList &Args,34 const char *LinkingOutput) const {35 const Driver &D = getToolChain().getDriver();36 ArgStringList CmdArgs;37 38 const bool IsArch32Bit = getToolChain().getTriple().isArch32Bit();39 const bool IsArch64Bit = getToolChain().getTriple().isArch64Bit();40 // Only support 32 and 64 bit.41 if (!IsArch32Bit && !IsArch64Bit)42 llvm_unreachable("Unsupported bit width value.");43 44 if (Arg *A = C.getArgs().getLastArg(options::OPT_G)) {45 D.Diag(diag::err_drv_unsupported_opt_for_target)46 << A->getSpelling() << D.getTargetTriple();47 }48 49 // Specify the mode in which the as(1) command operates.50 if (IsArch32Bit) {51 CmdArgs.push_back("-a32");52 } else {53 // Must be 64-bit, otherwise asserted already.54 CmdArgs.push_back("-a64");55 }56 57 // Accept any mixture of instructions.58 // On Power for AIX and Linux, this behaviour matches that of GCC for both the59 // user-provided assembler source case and the compiler-produced assembler60 // source case. Yet XL with user-provided assembler source would not add this.61 CmdArgs.push_back("-many");62 63 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);64 65 // Specify assembler output file.66 assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");67 if (Output.isFilename()) {68 CmdArgs.push_back("-o");69 CmdArgs.push_back(Output.getFilename());70 }71 72 // Specify assembler input file.73 // The system assembler on AIX takes exactly one input file. The driver is74 // expected to invoke as(1) separately for each assembler source input file.75 if (Inputs.size() != 1)76 llvm_unreachable("Invalid number of input files.");77 const InputInfo &II = Inputs[0];78 assert((II.isFilename() || II.isNothing()) && "Invalid input.");79 if (II.isFilename())80 CmdArgs.push_back(II.getFilename());81 82 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));83 C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),84 Exec, CmdArgs, Inputs, Output));85}86 87// Determine whether there are any linker options that supply an export list88// (or equivalent information about what to export) being sent to the linker.89static bool hasExportListLinkerOpts(const ArgStringList &CmdArgs) {90 for (size_t i = 0, Size = CmdArgs.size(); i < Size; ++i) {91 llvm::StringRef ArgString(CmdArgs[i]);92 93 if (ArgString.starts_with("-bE:") || ArgString.starts_with("-bexport:") ||94 ArgString == "-bexpall" || ArgString == "-bexpfull")95 return true;96 97 // If we split -b option, check the next opt.98 if (ArgString == "-b" && i + 1 < Size) {99 ++i;100 llvm::StringRef ArgNextString(CmdArgs[i]);101 if (ArgNextString.starts_with("E:") ||102 ArgNextString.starts_with("export:") || ArgNextString == "expall" ||103 ArgNextString == "expfull")104 return true;105 }106 }107 return false;108}109 110void aix::Linker::ConstructJob(Compilation &C, const JobAction &JA,111 const InputInfo &Output,112 const InputInfoList &Inputs, const ArgList &Args,113 const char *LinkingOutput) const {114 const AIX &ToolChain = static_cast<const AIX &>(getToolChain());115 const Driver &D = ToolChain.getDriver();116 ArgStringList CmdArgs;117 118 const bool IsArch32Bit = ToolChain.getTriple().isArch32Bit();119 const bool IsArch64Bit = ToolChain.getTriple().isArch64Bit();120 // Only support 32 and 64 bit.121 if (!(IsArch32Bit || IsArch64Bit))122 llvm_unreachable("Unsupported bit width value.");123 124 if (Arg *A = C.getArgs().getLastArg(options::OPT_G)) {125 D.Diag(diag::err_drv_unsupported_opt_for_target)126 << A->getSpelling() << D.getTargetTriple();127 }128 129 // Force static linking when "-static" is present.130 if (Args.hasArg(options::OPT_static))131 CmdArgs.push_back("-bnso");132 133 // Add options for shared libraries.134 if (Args.hasArg(options::OPT_shared)) {135 CmdArgs.push_back("-bM:SRE");136 CmdArgs.push_back("-bnoentry");137 }138 139 if (Args.hasFlag(options::OPT_mxcoff_roptr, options::OPT_mno_xcoff_roptr,140 false)) {141 if (Args.hasArg(options::OPT_shared))142 D.Diag(diag::err_roptr_cannot_build_shared);143 144 // The `-mxcoff-roptr` option places constants in RO sections as much as145 // possible. Then `-bforceimprw` changes such sections to RW if they contain146 // imported symbols that need to be resolved.147 CmdArgs.push_back("-bforceimprw");148 }149 150 // PGO instrumentation generates symbols belonging to special sections, and151 // the linker needs to place all symbols in a particular section together in152 // memory; the AIX linker does that under an option.153 if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,154 false) ||155 Args.hasFlag(options::OPT_fprofile_generate,156 options::OPT_fno_profile_generate, false) ||157 Args.hasFlag(options::OPT_fprofile_generate_EQ,158 options::OPT_fno_profile_generate, false) ||159 Args.hasFlag(options::OPT_fprofile_instr_generate,160 options::OPT_fno_profile_instr_generate, false) ||161 Args.hasFlag(options::OPT_fprofile_instr_generate_EQ,162 options::OPT_fno_profile_instr_generate, false) ||163 Args.hasFlag(options::OPT_fcs_profile_generate,164 options::OPT_fno_profile_generate, false) ||165 Args.hasFlag(options::OPT_fcs_profile_generate_EQ,166 options::OPT_fno_profile_generate, false) ||167 Args.hasArg(options::OPT_fcreate_profile) ||168 Args.hasArg(options::OPT_coverage))169 CmdArgs.push_back("-bdbg:namedsects:ss");170 171 if (Arg *A = Args.getLastArg(options::OPT_mxcoff_build_id_EQ)) {172 StringRef BuildId = A->getValue();173 if (BuildId[0] != '0' || BuildId[1] != 'x' ||174 BuildId.find_if_not(llvm::isHexDigit, 2) != StringRef::npos)175 ToolChain.getDriver().Diag(diag::err_drv_unsupported_option_argument)176 << A->getSpelling() << BuildId;177 else {178 std::string LinkerFlag = "-bdbg:ldrinfo:xcoff_binary_id:0x";179 if (BuildId.size() % 2) // Prepend a 0 if odd number of digits.180 LinkerFlag += "0";181 LinkerFlag += BuildId.drop_front(2).lower();182 CmdArgs.push_back(Args.MakeArgString(LinkerFlag));183 }184 }185 186 // Specify linker output file.187 assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");188 if (Output.isFilename()) {189 CmdArgs.push_back("-o");190 CmdArgs.push_back(Output.getFilename());191 }192 193 // Set linking mode (i.e., 32/64-bit) and the address of194 // text and data sections based on arch bit width.195 if (IsArch32Bit) {196 CmdArgs.push_back("-b32");197 CmdArgs.push_back("-bpT:0x10000000");198 CmdArgs.push_back("-bpD:0x20000000");199 } else {200 // Must be 64-bit, otherwise asserted already.201 CmdArgs.push_back("-b64");202 CmdArgs.push_back("-bpT:0x100000000");203 CmdArgs.push_back("-bpD:0x110000000");204 }205 206 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,207 options::OPT_shared, options::OPT_r)) {208 auto getCrt0Basename = [&Args, IsArch32Bit] {209 if (Arg *A = Args.getLastArgNoClaim(options::OPT_p, options::OPT_pg)) {210 // Enable gprofiling when "-pg" is specified.211 if (A->getOption().matches(options::OPT_pg))212 return IsArch32Bit ? "gcrt0.o" : "gcrt0_64.o";213 // Enable profiling when "-p" is specified.214 return IsArch32Bit ? "mcrt0.o" : "mcrt0_64.o";215 }216 return IsArch32Bit ? "crt0.o" : "crt0_64.o";217 };218 219 CmdArgs.push_back(220 Args.MakeArgString(ToolChain.GetFilePath(getCrt0Basename())));221 222 CmdArgs.push_back(Args.MakeArgString(223 ToolChain.GetFilePath(IsArch32Bit ? "crti.o" : "crti_64.o")));224 }225 226 // Collect all static constructor and destructor functions in both C and CXX227 // language link invocations. This has to come before AddLinkerInputs as the228 // implied option needs to precede any other '-bcdtors' settings or229 // '-bnocdtors' that '-Wl' might forward.230 CmdArgs.push_back("-bcdtors:all:0:s");231 232 if (Args.hasArg(options::OPT_rpath)) {233 for (const auto &bopt : Args.getAllArgValues(options::OPT_b))234 // Check -b opts prefix for "libpath:" or exact match for "nolibpath"235 if (!bopt.rfind("libpath:", 0) || bopt == "nolibpath")236 D.Diag(diag::err_drv_cannot_mix_options) << "-rpath" << "-b" + bopt;237 238 for (const auto &wlopt : Args.getAllArgValues(options::OPT_Wl_COMMA))239 // Check -Wl, opts prefix for "-blibpath:" or exact match for240 // "-bnolibpath"241 if (!wlopt.rfind("-blibpath:", 0) || wlopt == "-bnolibpath")242 D.Diag(diag::err_drv_cannot_mix_options) << "-rpath" << "-Wl," + wlopt;243 244 for (const auto &xopt : Args.getAllArgValues(options::OPT_Xlinker))245 // Check -Xlinker opts prefix for "-blibpath:" or exact match for246 // "-bnolibpath"247 if (!xopt.rfind("-blibpath:", 0) || xopt == "-bnolibpath")248 D.Diag(diag::err_drv_cannot_mix_options)249 << "-rpath" << "-Xlinker " + xopt;250 251 std::string BlibPathStr = "";252 for (const auto &dir : Args.getAllArgValues(options::OPT_rpath))253 BlibPathStr += dir + ":";254 BlibPathStr += "/usr/lib:/lib";255 CmdArgs.push_back(Args.MakeArgString(Twine("-blibpath:") + BlibPathStr));256 }257 258 // Specify linker input file(s).259 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);260 261 if (D.isUsingLTO())262 addLTOOptions(ToolChain, Args, CmdArgs, Output, Inputs,263 D.getLTOMode() == LTOK_Thin);264 265 if (Args.hasArg(options::OPT_shared) && !hasExportListLinkerOpts(CmdArgs)) {266 267 const char *CreateExportListExec = Args.MakeArgString(268 path::parent_path(ToolChain.getDriver().ClangExecutable) +269 "/llvm-nm");270 ArgStringList CreateExportCmdArgs;271 272 std::string CreateExportListPath =273 C.getDriver().GetTemporaryPath("CreateExportList", "exp");274 const char *ExportList =275 C.addTempFile(C.getArgs().MakeArgString(CreateExportListPath));276 277 for (const auto &II : Inputs)278 if (II.isFilename())279 CreateExportCmdArgs.push_back(II.getFilename());280 281 CreateExportCmdArgs.push_back("--export-symbols");282 CreateExportCmdArgs.push_back("-X");283 if (IsArch32Bit) {284 CreateExportCmdArgs.push_back("32");285 } else {286 // Must be 64-bit, otherwise asserted already.287 CreateExportCmdArgs.push_back("64");288 }289 290 auto ExpCommand = std::make_unique<Command>(291 JA, *this, ResponseFileSupport::None(), CreateExportListExec,292 CreateExportCmdArgs, Inputs, Output);293 ExpCommand->setRedirectFiles(294 {std::nullopt, std::string(ExportList), std::nullopt});295 C.addCommand(std::move(ExpCommand));296 CmdArgs.push_back(Args.MakeArgString(llvm::Twine("-bE:") + ExportList));297 }298 299 // Add directory to library search path.300 Args.AddAllArgs(CmdArgs, options::OPT_L);301 if (!Args.hasArg(options::OPT_r)) {302 ToolChain.AddFilePathLibArgs(Args, CmdArgs);303 ToolChain.addProfileRTLibs(Args, CmdArgs);304 305 if (getToolChain().ShouldLinkCXXStdlib(Args))306 getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);307 308 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {309 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);310 311 // Add OpenMP runtime if -fopenmp is specified.312 if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ,313 options::OPT_fno_openmp, false)) {314 switch (ToolChain.getDriver().getOpenMPRuntime(Args)) {315 case Driver::OMPRT_OMP:316 CmdArgs.push_back("-lomp");317 break;318 case Driver::OMPRT_IOMP5:319 CmdArgs.push_back("-liomp5");320 break;321 case Driver::OMPRT_GOMP:322 CmdArgs.push_back("-lgomp");323 break;324 case Driver::OMPRT_Unknown:325 // Already diagnosed.326 break;327 }328 }329 330 // Support POSIX threads if "-pthreads" or "-pthread" is present.331 if (Args.hasArg(options::OPT_pthreads, options::OPT_pthread))332 CmdArgs.push_back("-lpthreads");333 334 if (D.CCCIsCXX())335 CmdArgs.push_back("-lm");336 337 CmdArgs.push_back("-lc");338 339 if (Args.hasArgNoClaim(options::OPT_p, options::OPT_pg)) {340 CmdArgs.push_back(Args.MakeArgString((llvm::Twine("-L") + D.SysRoot) +341 "/lib/profiled"));342 CmdArgs.push_back(Args.MakeArgString((llvm::Twine("-L") + D.SysRoot) +343 "/usr/lib/profiled"));344 }345 }346 }347 348 if (D.IsFlangMode() &&349 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {350 ToolChain.addFortranRuntimeLibraryPath(Args, CmdArgs);351 ToolChain.addFortranRuntimeLibs(Args, CmdArgs);352 CmdArgs.push_back("-lm");353 CmdArgs.push_back("-lpthread");354 }355 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());356 C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),357 Exec, CmdArgs, Inputs, Output));358}359 360/// AIX - AIX tool chain which can call as(1) and ld(1) directly.361AIX::AIX(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)362 : ToolChain(D, Triple, Args) {363 getProgramPaths().push_back(getDriver().Dir);364 365 ParseInlineAsmUsingAsmParser = Args.hasFlag(366 options::OPT_fintegrated_as, options::OPT_fno_integrated_as, true);367 getLibraryPaths().push_back(getDriver().SysRoot + "/usr/lib");368}369 370// Returns the effective header sysroot path to use.371// This comes from either -isysroot or --sysroot.372llvm::StringRef373AIX::GetHeaderSysroot(const llvm::opt::ArgList &DriverArgs) const {374 if (DriverArgs.hasArg(options::OPT_isysroot))375 return DriverArgs.getLastArgValue(options::OPT_isysroot);376 if (!getDriver().SysRoot.empty())377 return getDriver().SysRoot;378 return "/";379}380 381void AIX::AddOpenMPIncludeArgs(const ArgList &DriverArgs,382 ArgStringList &CC1Args) const {383 // Add OpenMP include paths if -fopenmp is specified.384 if (DriverArgs.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ,385 options::OPT_fno_openmp, false)) {386 SmallString<128> PathOpenMP;387 switch (getDriver().getOpenMPRuntime(DriverArgs)) {388 case Driver::OMPRT_OMP:389 PathOpenMP = GetHeaderSysroot(DriverArgs);390 llvm::sys::path::append(PathOpenMP, "opt/IBM/openxlCSDK", "include",391 "openmp");392 addSystemInclude(DriverArgs, CC1Args, PathOpenMP.str());393 break;394 case Driver::OMPRT_IOMP5:395 case Driver::OMPRT_GOMP:396 case Driver::OMPRT_Unknown:397 // Unknown / unsupported include paths.398 break;399 }400 }401}402 403void AIX::AddClangSystemIncludeArgs(const ArgList &DriverArgs,404 ArgStringList &CC1Args) const {405 // Return if -nostdinc is specified as a driver option.406 if (DriverArgs.hasArg(options::OPT_nostdinc))407 return;408 409 llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs);410 const Driver &D = getDriver();411 412 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {413 SmallString<128> P(D.ResourceDir);414 // Add the PowerPC intrinsic headers (<resource>/include/ppc_wrappers)415 path::append(P, "include", "ppc_wrappers");416 addSystemInclude(DriverArgs, CC1Args, P);417 // Add the Clang builtin headers (<resource>/include)418 addSystemInclude(DriverArgs, CC1Args, path::parent_path(P.str()));419 }420 421 // Add the include directory containing omp.h. This needs to be before422 // adding the system include directory because other compilers put their423 // omp.h in /usr/include.424 AddOpenMPIncludeArgs(DriverArgs, CC1Args);425 426 // Return if -nostdlibinc is specified as a driver option.427 if (DriverArgs.hasArg(options::OPT_nostdlibinc))428 return;429 430 // Add <sysroot>/usr/include.431 SmallString<128> UP(Sysroot);432 path::append(UP, "/usr/include");433 addSystemInclude(DriverArgs, CC1Args, UP.str());434}435 436void AIX::AddClangCXXStdlibIncludeArgs(437 const llvm::opt::ArgList &DriverArgs,438 llvm::opt::ArgStringList &CC1Args) const {439 440 if (DriverArgs.hasArg(options::OPT_nostdinc) ||441 DriverArgs.hasArg(options::OPT_nostdincxx) ||442 DriverArgs.hasArg(options::OPT_nostdlibinc))443 return;444 445 switch (GetCXXStdlibType(DriverArgs)) {446 case ToolChain::CST_Libstdcxx:447 llvm::report_fatal_error(448 "picking up libstdc++ headers is unimplemented on AIX");449 case ToolChain::CST_Libcxx: {450 llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs);451 SmallString<128> PathCPP(Sysroot);452 llvm::sys::path::append(PathCPP, "opt/IBM/openxlCSDK", "include", "c++",453 "v1");454 addSystemInclude(DriverArgs, CC1Args, PathCPP.str());455 // Required in order to suppress conflicting C++ overloads in the system456 // libc headers that were used by XL C++.457 CC1Args.push_back("-D__LIBC_NO_CPP_MATH_OVERLOADS__");458 return;459 }460 }461 462 llvm_unreachable("Unexpected C++ library type; only libc++ is supported.");463}464 465void AIX::AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,466 llvm::opt::ArgStringList &CmdArgs) const {467 switch (GetCXXStdlibType(Args)) {468 case ToolChain::CST_Libstdcxx:469 llvm::report_fatal_error("linking libstdc++ unimplemented on AIX");470 case ToolChain::CST_Libcxx:471 CmdArgs.push_back("-lc++");472 if (Args.hasArg(options::OPT_fexperimental_library))473 CmdArgs.push_back("-lc++experimental");474 CmdArgs.push_back("-lc++abi");475 return;476 }477 478 llvm_unreachable("Unexpected C++ library type; only libc++ is supported.");479}480 481// This function processes all the mtocdata options to build the final482// simplified toc data options to pass to CC1.483static void addTocDataOptions(const llvm::opt::ArgList &Args,484 llvm::opt::ArgStringList &CC1Args,485 const Driver &D) {486 487 // Check the global toc-data setting. The default is -mno-tocdata.488 // To enable toc-data globally, -mtocdata must be specified.489 // Additionally, it must be last to take effect.490 const bool TOCDataGloballyinEffect = [&Args]() {491 if (const Arg *LastArg =492 Args.getLastArg(options::OPT_mtocdata, options::OPT_mno_tocdata))493 return LastArg->getOption().matches(options::OPT_mtocdata);494 else495 return false;496 }();497 498 enum TOCDataSetting {499 AddressInTOC = 0, // Address of the symbol stored in the TOC.500 DataInTOC = 1 // Symbol defined in the TOC.501 };502 503 const TOCDataSetting DefaultTocDataSetting =504 TOCDataGloballyinEffect ? DataInTOC : AddressInTOC;505 506 // Process the list of variables in the explicitly specified options507 // -mtocdata= and -mno-tocdata= to see which variables are opposite to508 // the global setting of tocdata in TOCDataGloballyinEffect.509 // Those that have the opposite setting to TOCDataGloballyinEffect, are added510 // to ExplicitlySpecifiedGlobals.511 std::set<llvm::StringRef> ExplicitlySpecifiedGlobals;512 for (const auto Arg :513 Args.filtered(options::OPT_mtocdata_EQ, options::OPT_mno_tocdata_EQ)) {514 TOCDataSetting ArgTocDataSetting =515 Arg->getOption().matches(options::OPT_mtocdata_EQ) ? DataInTOC516 : AddressInTOC;517 518 if (ArgTocDataSetting != DefaultTocDataSetting)519 for (const char *Val : Arg->getValues())520 ExplicitlySpecifiedGlobals.insert(Val);521 else522 for (const char *Val : Arg->getValues())523 ExplicitlySpecifiedGlobals.erase(Val);524 }525 526 auto buildExceptionList = [](const std::set<llvm::StringRef> &ExplicitValues,527 const char *OptionSpelling) {528 std::string Option(OptionSpelling);529 bool IsFirst = true;530 for (const auto &E : ExplicitValues) {531 if (!IsFirst)532 Option += ",";533 534 IsFirst = false;535 Option += E.str();536 }537 return Option;538 };539 540 // Pass the final tocdata options to CC1 consisting of the default541 // tocdata option (-mtocdata/-mno-tocdata) along with the list542 // option (-mno-tocdata=/-mtocdata=) if there are any explicitly specified543 // variables which would be exceptions to the default setting.544 const char *TocDataGlobalOption =545 TOCDataGloballyinEffect ? "-mtocdata" : "-mno-tocdata";546 CC1Args.push_back(TocDataGlobalOption);547 548 const char *TocDataListOption =549 TOCDataGloballyinEffect ? "-mno-tocdata=" : "-mtocdata=";550 if (!ExplicitlySpecifiedGlobals.empty())551 CC1Args.push_back(Args.MakeArgString(llvm::Twine(552 buildExceptionList(ExplicitlySpecifiedGlobals, TocDataListOption))));553}554 555void AIX::addClangTargetOptions(556 const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CC1Args,557 Action::OffloadKind DeviceOffloadingKind) const {558 Args.AddLastArg(CC1Args, options::OPT_mignore_xcoff_visibility);559 Args.AddLastArg(CC1Args, options::OPT_mdefault_visibility_export_mapping_EQ);560 Args.addOptInFlag(CC1Args, options::OPT_mxcoff_roptr, options::OPT_mno_xcoff_roptr);561 562 // Forward last mtocdata/mno_tocdata options to -cc1.563 if (Args.hasArg(options::OPT_mtocdata_EQ, options::OPT_mno_tocdata_EQ,564 options::OPT_mtocdata))565 addTocDataOptions(Args, CC1Args, getDriver());566 567 if (Args.hasArg(options::OPT_msave_reg_params))568 CC1Args.push_back("-msave-reg-params");569 570 if (Args.hasFlag(options::OPT_fxl_pragma_pack,571 options::OPT_fno_xl_pragma_pack, true))572 CC1Args.push_back("-fxl-pragma-pack");573 574 // Pass "-fno-sized-deallocation" only when the user hasn't manually enabled575 // or disabled sized deallocations.576 if (!Args.getLastArgNoClaim(options::OPT_fsized_deallocation,577 options::OPT_fno_sized_deallocation))578 CC1Args.push_back("-fno-sized-deallocation");579}580 581void AIX::addProfileRTLibs(const llvm::opt::ArgList &Args,582 llvm::opt::ArgStringList &CmdArgs) const {583 if (needsProfileRT(Args)) {584 // Add linker option -u__llvm_profile_runtime to cause runtime585 // initialization to occur.586 CmdArgs.push_back(Args.MakeArgString(587 Twine("-u", llvm::getInstrProfRuntimeHookVarName())));588 589 if (const auto *A =590 Args.getLastArgNoClaim(options::OPT_fprofile_update_EQ)) {591 StringRef Val = A->getValue();592 if (Val == "atomic" || Val == "prefer-atomic")593 CmdArgs.push_back("-latomic");594 }595 }596 597 ToolChain::addProfileRTLibs(Args, CmdArgs);598}599 600ToolChain::CXXStdlibType AIX::GetDefaultCXXStdlibType() const {601 return ToolChain::CST_Libcxx;602}603 604ToolChain::RuntimeLibType AIX::GetDefaultRuntimeLibType() const {605 return ToolChain::RLT_CompilerRT;606}607 608auto AIX::buildAssembler() const -> Tool * { return new aix::Assembler(*this); }609 610auto AIX::buildLinker() const -> Tool * { return new aix::Linker(*this); }611