Lines Matching +full:zstd +full:- +full:win +full:- +full:release +full:-
1 //===- Driver.cpp ---------------------------------------------------------===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
19 // be harmful when you are doing cross-linking. Therefore, in LLD, we
23 //===----------------------------------------------------------------------===//
53 #include "llvm/Config/llvm-config.h"
88 if (config->noinhibitExec) in errorOrWarn()
130 // This driver-specific context will be freed later by unsafeLldMain(). in link()
133 ctx->e.initialize(stdoutOS, stderrOS, exitEarly, disableOutput); in link()
134 ctx->e.cleanupCallback = []() { in link()
149 ctx->e.logName = args::getFilenameWithoutExe(args[0]); in link()
150 ctx->e.errorLimitExceededMsg = "too many errors emitted, stopping now (use " in link()
151 "--error-limit=0 to see all errors)"; in link()
161 config->progName = args[0]; in link()
170 // Parses a linker -m option.
227 bool addToTar = file->isThin() && tar; in getArchiveMembers()
228 for (const Archive::Child &c : file->children(err)) { in getArchiveMembers()
234 tar->append(relativeToRoot(check(c.getFullName())), mbref.getBuffer()); in getArchiveMembers()
242 std::vector<std::unique_ptr<MemoryBuffer>> mbs = file->takeThinBuffers(); in getArchiveMembers()
254 if (!config->fatLTOObjects) in tryAddFatLTOFile()
274 if (config->formatBinary) { in addFile()
297 // Handle archives and --start-lib/--end-lib using the same code path. This in addFile()
301 // utilization rates and it is a net performance win. --start-lib scans in addFile()
302 // symbols in the same order that llvm-ar adds them to the index, so in the in addFile()
308 // references for --warn-backrefs. in addFile()
328 if (config->isStatic) { in addFile()
334 // DT_SONAME and falls back to filename. If a file was specified by -lfoo, in addFile()
340 f->init(); in addFile()
361 error("unable to find library -l" + name, ErrorTag::LibNotFound, {name}); in addLibrary()
378 // The MIPS ABI as of 2016 does not support the GNU-style symbol lookup in checkOptions()
380 if (config->emachine == EM_MIPS && config->gnuHash) in checkOptions()
383 if (config->emachine == EM_ARM) { in checkOptions()
384 if (!config->cmseImplib) { in checkOptions()
385 if (!config->cmseInputLib.empty()) in checkOptions()
386 error("--in-implib may not be used without --cmse-implib"); in checkOptions()
387 if (!config->cmseOutputLib.empty()) in checkOptions()
388 error("--out-implib may not be used without --cmse-implib"); in checkOptions()
391 if (config->cmseImplib) in checkOptions()
392 error("--cmse-implib is only supported on ARM targets"); in checkOptions()
393 if (!config->cmseInputLib.empty()) in checkOptions()
394 error("--in-implib is only supported on ARM targets"); in checkOptions()
395 if (!config->cmseOutputLib.empty()) in checkOptions()
396 error("--out-implib is only supported on ARM targets"); in checkOptions()
399 if (config->fixCortexA53Errata843419 && config->emachine != EM_AARCH64) in checkOptions()
400 error("--fix-cortex-a53-843419 is only supported on AArch64 targets"); in checkOptions()
402 if (config->fixCortexA8 && config->emachine != EM_ARM) in checkOptions()
403 error("--fix-cortex-a8 is only supported on ARM targets"); in checkOptions()
405 if (config->armBe8 && config->emachine != EM_ARM) in checkOptions()
406 error("--be8 is only supported on ARM targets"); in checkOptions()
408 if (config->fixCortexA8 && !config->isLE) in checkOptions()
409 error("--fix-cortex-a8 is not supported on big endian targets"); in checkOptions()
411 if (config->tocOptimize && config->emachine != EM_PPC64) in checkOptions()
412 error("--toc-optimize is only supported on PowerPC64 targets"); in checkOptions()
414 if (config->pcRelOptimize && config->emachine != EM_PPC64) in checkOptions()
415 error("--pcrel-optimize is only supported on PowerPC64 targets"); in checkOptions()
417 if (config->relaxGP && config->emachine != EM_RISCV) in checkOptions()
418 error("--relax-gp is only supported on RISC-V targets"); in checkOptions()
420 if (config->pie && config->shared) in checkOptions()
421 error("-shared and -pie may not be used together"); in checkOptions()
423 if (!config->shared && !config->filterList.empty()) in checkOptions()
424 error("-F may not be used without -shared"); in checkOptions()
426 if (!config->shared && !config->auxiliaryList.empty()) in checkOptions()
427 error("-f may not be used without -shared"); in checkOptions()
429 if (config->strip == StripPolicy::All && config->emitRelocs) in checkOptions()
430 error("--strip-all and --emit-relocs may not be used together"); in checkOptions()
432 if (config->zText && config->zIfuncNoplt) in checkOptions()
433 error("-z text and -z ifunc-noplt may not be used together"); in checkOptions()
435 if (config->relocatable) { in checkOptions()
436 if (config->shared) in checkOptions()
437 error("-r and -shared may not be used together"); in checkOptions()
438 if (config->gdbIndex) in checkOptions()
439 error("-r and --gdb-index may not be used together"); in checkOptions()
440 if (config->icf != ICFLevel::None) in checkOptions()
441 error("-r and --icf may not be used together"); in checkOptions()
442 if (config->pie) in checkOptions()
443 error("-r and -pie may not be used together"); in checkOptions()
444 if (config->exportDynamic) in checkOptions()
445 error("-r and --export-dynamic may not be used together"); in checkOptions()
446 if (config->debugNames) in checkOptions()
447 error("-r and --debug-names may not be used together"); in checkOptions()
450 if (config->executeOnly) { in checkOptions()
451 if (config->emachine != EM_AARCH64) in checkOptions()
452 error("--execute-only is only supported on AArch64 targets"); in checkOptions()
454 if (config->singleRoRx && !script->hasSectionsCommand) in checkOptions()
455 error("--execute-only and --no-rosegment cannot be used together"); in checkOptions()
458 if (config->zRetpolineplt && config->zForceIbt) in checkOptions()
459 error("-z force-ibt may not be used with -z retpolineplt"); in checkOptions()
461 if (config->emachine != EM_AARCH64) { in checkOptions()
462 if (config->zPacPlt) in checkOptions()
463 error("-z pac-plt only supported on AArch64"); in checkOptions()
464 if (config->zForceBti) in checkOptions()
465 error("-z force-bti only supported on AArch64"); in checkOptions()
466 if (config->zBtiReport != "none") in checkOptions()
467 error("-z bti-report only supported on AArch64"); in checkOptions()
468 if (config->zPauthReport != "none") in checkOptions()
469 error("-z pauth-report only supported on AArch64"); in checkOptions()
470 if (config->zGcsReport != "none") in checkOptions()
471 error("-z gcs-report only supported on AArch64"); in checkOptions()
472 if (config->zGcs != GcsPolicy::Implicit) in checkOptions()
473 error("-z gcs only supported on AArch64"); in checkOptions()
476 if (config->emachine != EM_386 && config->emachine != EM_X86_64 && in checkOptions()
477 config->zCetReport != "none") in checkOptions()
478 error("-z cet-report only supported on X86 and X86_64"); in checkOptions()
483 return arg->getValue(); in getReproduceOption()
490 if (key == arg->getValue()) { in hasZOption()
492 arg->claim(); in hasZOption()
500 StringRef v = arg->getValue(); in getZFlag()
507 arg->claim(); in getZFlag()
515 StringRef v = arg->getValue(); in getZSeparate()
516 if (v == "noseparate-code") in getZSeparate()
518 else if (v == "separate-code") in getZSeparate()
520 else if (v == "separate-loadable-segments") in getZSeparate()
524 arg->claim(); in getZSeparate()
532 StringRef v = arg->getValue(); in getZGnuStack()
541 arg->claim(); in getZGnuStack()
549 std::pair<StringRef, StringRef> kv = StringRef(arg->getValue()).split('='); in getZStartStopVisibility()
550 if (kv.first == "start-stop-visibility") { in getZStartStopVisibility()
551 arg->claim(); in getZStartStopVisibility()
561 error("unknown -z start-stop-visibility= value: " + in getZStartStopVisibility()
571 std::pair<StringRef, StringRef> kv = StringRef(arg->getValue()).split('='); in getZGcs()
573 arg->claim(); in getZGcs()
581 error("unknown -z gcs= value: " + kv.second); in getZGcs()
587 // Report a warning for an unknown -z option.
591 args::getZOptionValue(args, OPT_z, "max-page-size", 0); in checkZOptions()
592 args::getZOptionValue(args, OPT_z, "common-page-size", 0); in checkZOptions()
595 if (!arg->isClaimed()) in checkZOptions()
596 warn("unknown -z value: " + StringRef(arg->getValue())); in checkZOptions()
614 // Handle -help in linkerMain()
620 // Handle -v or -version. in linkerMain()
623 // scripts generated by GNU Libtool up to 2021-10 to recognize LLD as in linkerMain()
625 // <https://lists.gnu.org/archive/html/libtool/2017-01/msg00007.html>. in linkerMain()
628 // than doing this. Considering the very long release cycle of Libtool, in linkerMain()
633 // the latest version and re-generate scripts. So we have this hack. in linkerMain()
638 // Note that --reproduce is a debug option so you can ignore it in linkerMain()
644 tar->append("response.txt", createResponseFile(args)); in linkerMain()
645 tar->append("version.txt", getLLDVersion() + "\n"); in linkerMain()
650 error("--reproduce: " + toString(errOrWriter.takeError())); in linkerMain()
657 // The behavior of -v or --version is a bit strange, but this is in linkerMain()
665 if (config->timeTraceEnabled) in linkerMain()
666 timeTraceProfilerInitialize(config->timeTraceGranularity, config->progName); in linkerMain()
685 if (config->timeTraceEnabled) { in linkerMain()
687 args.getLastArgValue(OPT_time_trace_eq).str(), config->outputFile)); in linkerMain()
704 // -shared implies --unresolved-symbols=ignore-all because missing in setUnresolvedSymbolPolicy()
706 bool diagRegular = !config->shared, diagShlib = !config->shared; in setUnresolvedSymbolPolicy()
709 switch (arg->getOption().getID()) { in setUnresolvedSymbolPolicy()
711 StringRef s = arg->getValue(); in setUnresolvedSymbolPolicy()
712 if (s == "ignore-all") { in setUnresolvedSymbolPolicy()
715 } else if (s == "ignore-in-object-files") { in setUnresolvedSymbolPolicy()
718 } else if (s == "ignore-in-shared-libs") { in setUnresolvedSymbolPolicy()
721 } else if (s == "report-all") { in setUnresolvedSymbolPolicy()
725 error("unknown --unresolved-symbols value: " + s); in setUnresolvedSymbolPolicy()
733 if (StringRef(arg->getValue()) == "defs") in setUnresolvedSymbolPolicy()
735 else if (StringRef(arg->getValue()) == "undefs") in setUnresolvedSymbolPolicy()
739 arg->claim(); in setUnresolvedSymbolPolicy()
750 config->unresolvedSymbols = in setUnresolvedSymbolPolicy()
752 config->unresolvedSymbolsInShlib = in setUnresolvedSymbolPolicy()
757 StringRef s = args.getLastArgValue(OPT_target2, "got-rel"); in getTarget2()
762 if (s == "got-rel") in getTarget2()
764 error("unknown --target2 option: " + s); in getTarget2()
773 error("unknown --oformat value: " + s); in isOutputFormatBinary()
782 if (arg->getOption().getID() == OPT_discard_all) in getDiscard()
784 if (arg->getOption().getID() == OPT_discard_locals) in getDiscard()
793 if (arg->getOption().getID() == OPT_no_dynamic_linker) { in getDynamicLinker()
794 // --no-dynamic-linker suppresses undefined weak symbols in .dynsym in getDynamicLinker()
795 config->noDynamicLinker = true; in getDynamicLinker()
798 return arg->getValue(); in getDynamicLinker()
804 if (config->androidMemtagStack) in getMemtagMode()
805 warn("--android-memtag-mode is unspecified, leaving " in getMemtagMode()
806 "--android-memtag-stack a no-op"); in getMemtagMode()
807 else if (config->androidMemtagHeap) in getMemtagMode()
808 warn("--android-memtag-mode is unspecified, leaving " in getMemtagMode()
809 "--android-memtag-heap a no-op"); in getMemtagMode()
820 error("unknown --android-memtag-mode value: \"" + memtagModeArg + in getMemtagMode()
827 if (!arg || arg->getOption().getID() == OPT_icf_none) in getICF()
829 if (arg->getOption().getID() == OPT_icf_safe) in getICF()
841 if (arg->getOption().getID() == OPT_strip_all) in getStrip()
861 std::tie(name, addr) = StringRef(arg->getValue()).split('='); in getSectionStartMap()
866 ret[".text"] = parseSectionAddress(arg->getValue(), args, *arg); in getSectionStartMap()
868 ret[".data"] = parseSectionAddress(arg->getValue(), args, *arg); in getSectionStartMap()
870 ret[".bss"] = parseSectionAddress(arg->getValue(), args, *arg); in getSectionStartMap()
881 error("unknown --sort-section rule: " + s); in getSortSection()
892 error("unknown --orphan-handling mode: " + s); in getOrphanHandling()
896 // Parse --build-id or --build-id=<style>. We handle "tree" as a
898 // --build-id=sha1 are actually tree hashes for performance reasons.
905 StringRef s = arg->getValue(); in getBuildId()
918 error("unknown --build-id style: " + s); in getBuildId()
932 error("unknown --pack-dyn-relocs format: " + s); in getPackDynRelocs()
940 for (Symbol *sym : file->getSymbols()) in readCallGraph()
941 map[sym->getName()] = sym; in readCallGraph()
943 auto findSection = [&](StringRef name) -> InputSectionBase * { in readCallGraph()
946 if (config->warnSymbolOrdering) in readCallGraph()
953 return dyn_cast_or_null<InputSectionBase>(dr->section); in readCallGraph()
969 config->callGraphProfile[std::make_pair(from, to)] += count; in readCallGraph()
980 if (inputObj->cgProfileSectionIndex == SHN_UNDEF) in processCallGraphRelocations()
984 inputObj->template getELFShdrs<ELFT>(); in processCallGraphRelocations()
986 const ELFFile<ELFT> &obj = inputObj->getObj(); in processCallGraphRelocations()
989 objSections[inputObj->cgProfileSectionIndex])); in processCallGraphRelocations()
993 if (sec.sh_info == inputObj->cgProfileSectionIndex) { in processCallGraphRelocations()
1007 symbolIndices.push_back(rel.getSymbol(config->isMips64EL)); in processCallGraphRelocations()
1014 symbolIndices.push_back(rel.getSymbol(config->isMips64EL)); in processCallGraphRelocations()
1039 auto *fromSym = dyn_cast<Defined>(&obj->getSymbol(fromIndex)); in readCallGraphsFromObjectFiles()
1040 auto *toSym = dyn_cast<Defined>(&obj->getSymbol(toIndex)); in readCallGraphsFromObjectFiles()
1044 auto *from = dyn_cast_or_null<InputSectionBase>(fromSym->section); in readCallGraphsFromObjectFiles()
1045 auto *to = dyn_cast_or_null<InputSectionBase>(toSym->section); in readCallGraphsFromObjectFiles()
1047 config->callGraphProfile[{from, to}] += cgpe.cgp_weight; in readCallGraphsFromObjectFiles()
1066 for (const Elf_Sym &s : f->template getGlobalELFSyms<ELFT>()) { in ltoValidateAllVtablesHaveTypeInfos()
1068 StringRef name = check(s.getName(f->getStringTable())); in ltoValidateAllVtablesHaveTypeInfos()
1076 for (const Elf_Sym &s : f->template getELFSyms<ELFT>()) { in ltoValidateAllVtablesHaveTypeInfos()
1078 StringRef name = check(s.getName(f->getStringTable())); in ltoValidateAllVtablesHaveTypeInfos()
1091 StringRef knownSafeName = arg->getValue(); in ltoValidateAllVtablesHaveTypeInfos()
1093 error("--lto-known-safe-vtables=: expected symbol to start with _ZTV, " in ltoValidateAllVtablesHaveTypeInfos()
1098 error("--lto-known-safe-vtables=: " + toString(pat.takeError())); in ltoValidateAllVtablesHaveTypeInfos()
1100 [&](StringRef s) { return pat->match(s); }); in ltoValidateAllVtablesHaveTypeInfos()
1107 "--lto-validate-all-vtables-have-type-infos: RTTI missing for vtable " in ltoValidateAllVtablesHaveTypeInfos()
1109 s + ", --lto-whole-program-visibility disabled"); in ltoValidateAllVtablesHaveTypeInfos()
1120 error("unknown --call-graph-profile-sort= value: " + s); in getCGProfileSortKind()
1127 .Case("zstd", DebugCompressionType::Zstd) in getCompressionType()
1140 if (const opt::Arg *alias = arg->getAlias()) in getAliasSpelling()
1141 return alias->getSpelling(); in getAliasSpelling()
1142 return arg->getSpelling(); in getAliasSpelling()
1151 StringRef s = arg->getValue(); in getOldNewOptions()
1170 if (!names.insert(s) && config->warnSymbolOrdering) in getSymbolOrderingFile()
1180 config->emachine); in getIsRela()
1181 // If -z rel or -z rela is specified, use the last option. in getIsRela()
1183 StringRef s(arg->getValue()); in getIsRela()
1190 arg->claim(); in getIsRela()
1199 const char *argv[] = {config->progName.data(), opt.data()}; in parseClangOption()
1206 // Checks the parameter of the bti-report and cet-report options.
1211 // Process a remap pattern 'from-glob=to-file'.
1216 error(location + ": parse error, not 'from-glob=to-file'"); in remapInputs()
1220 config->remapInputs[fields[0]] = fields[1]; in remapInputs()
1222 config->remapInputsWildcards.emplace_back(std::move(*pat), fields[1]); in remapInputs()
1236 config->allowMultipleDefinition = in readConfigs()
1240 config->androidMemtagHeap = in readConfigs()
1242 config->androidMemtagStack = args.hasFlag(OPT_android_memtag_stack, in readConfigs()
1244 config->fatLTOObjects = in readConfigs()
1246 config->androidMemtagMode = getMemtagMode(args); in readConfigs()
1247 config->auxiliaryList = args::getStrings(args, OPT_auxiliary); in readConfigs()
1248 config->armBe8 = args.hasArg(OPT_be8); in readConfigs()
1252 if (arg->getOption().matches(OPT_Bsymbolic_non_weak_functions)) in readConfigs()
1253 config->bsymbolic = BsymbolicKind::NonWeakFunctions; in readConfigs()
1254 else if (arg->getOption().matches(OPT_Bsymbolic_functions)) in readConfigs()
1255 config->bsymbolic = BsymbolicKind::Functions; in readConfigs()
1256 else if (arg->getOption().matches(OPT_Bsymbolic_non_weak)) in readConfigs()
1257 config->bsymbolic = BsymbolicKind::NonWeak; in readConfigs()
1258 else if (arg->getOption().matches(OPT_Bsymbolic)) in readConfigs()
1259 config->bsymbolic = BsymbolicKind::All; in readConfigs()
1261 config->callGraphProfileSort = getCGProfileSortKind(args); in readConfigs()
1262 config->checkSections = in readConfigs()
1264 config->chroot = args.getLastArgValue(OPT_chroot); in readConfigs()
1266 config->compressDebugSections = in readConfigs()
1267 getCompressionType(arg->getValue(), "--compress-debug-sections"); in readConfigs()
1269 config->cref = args.hasArg(OPT_cref); in readConfigs()
1270 config->optimizeBBJumps = in readConfigs()
1272 config->debugNames = args.hasFlag(OPT_debug_names, OPT_no_debug_names, false); in readConfigs()
1273 config->demangle = args.hasFlag(OPT_demangle, OPT_no_demangle, true); in readConfigs()
1274 config->dependencyFile = args.getLastArgValue(OPT_dependency_file); in readConfigs()
1275 …config->dependentLibraries = args.hasFlag(OPT_dependent_libraries, OPT_no_dependent_libraries, tru… in readConfigs()
1276 config->disableVerify = args.hasArg(OPT_disable_verify); in readConfigs()
1277 config->discard = getDiscard(args); in readConfigs()
1278 config->dwoDir = args.getLastArgValue(OPT_plugin_opt_dwo_dir_eq); in readConfigs()
1279 config->dynamicLinker = getDynamicLinker(args); in readConfigs()
1280 config->ehFrameHdr = in readConfigs()
1282 config->emitLLVM = args.hasArg(OPT_lto_emit_llvm); in readConfigs()
1283 config->emitRelocs = args.hasArg(OPT_emit_relocs); in readConfigs()
1284 config->enableNewDtags = in readConfigs()
1286 config->enableNonContiguousRegions = in readConfigs()
1288 config->entry = args.getLastArgValue(OPT_entry); in readConfigs()
1293 config->executeOnly = in readConfigs()
1295 config->exportDynamic = in readConfigs()
1298 config->filterList = args::getStrings(args, OPT_filter); in readConfigs()
1299 config->fini = args.getLastArgValue(OPT_fini, "_fini"); in readConfigs()
1300 config->fixCortexA53Errata843419 = args.hasArg(OPT_fix_cortex_a53_843419) && in readConfigs()
1302 config->cmseImplib = args.hasArg(OPT_cmse_implib); in readConfigs()
1303 config->cmseInputLib = args.getLastArgValue(OPT_in_implib); in readConfigs()
1304 config->cmseOutputLib = args.getLastArgValue(OPT_out_implib); in readConfigs()
1305 config->fixCortexA8 = in readConfigs()
1307 config->fortranCommon = in readConfigs()
1309 config->gcSections = args.hasFlag(OPT_gc_sections, OPT_no_gc_sections, false); in readConfigs()
1310 config->gnuUnique = args.hasFlag(OPT_gnu_unique, OPT_no_gnu_unique, true); in readConfigs()
1311 config->gdbIndex = args.hasFlag(OPT_gdb_index, OPT_no_gdb_index, false); in readConfigs()
1312 config->icf = getICF(args); in readConfigs()
1313 config->ignoreDataAddressEquality = in readConfigs()
1315 config->ignoreFunctionAddressEquality = in readConfigs()
1317 config->init = args.getLastArgValue(OPT_init, "_init"); in readConfigs()
1318 config->ltoAAPipeline = args.getLastArgValue(OPT_lto_aa_pipeline); in readConfigs()
1319 config->ltoCSProfileGenerate = args.hasArg(OPT_lto_cs_profile_generate); in readConfigs()
1320 config->ltoCSProfileFile = args.getLastArgValue(OPT_lto_cs_profile_file); in readConfigs()
1321 config->ltoPGOWarnMismatch = args.hasFlag(OPT_lto_pgo_warn_mismatch, in readConfigs()
1323 config->ltoDebugPassManager = args.hasArg(OPT_lto_debug_pass_manager); in readConfigs()
1324 config->ltoEmitAsm = args.hasArg(OPT_lto_emit_asm); in readConfigs()
1325 config->ltoNewPmPasses = args.getLastArgValue(OPT_lto_newpm_passes); in readConfigs()
1326 config->ltoWholeProgramVisibility = in readConfigs()
1329 config->ltoValidateAllVtablesHaveTypeInfos = in readConfigs()
1332 config->ltoo = args::getInteger(args, OPT_lto_O, 2); in readConfigs()
1333 if (config->ltoo > 3) in readConfigs()
1334 error("invalid optimization level for LTO: " + Twine(config->ltoo)); in readConfigs()
1336 args::getInteger(args, OPT_lto_CGO, args::getCGOptLevel(config->ltoo)); in readConfigs()
1338 config->ltoCgo = *level; in readConfigs()
1341 config->ltoObjPath = args.getLastArgValue(OPT_lto_obj_path_eq); in readConfigs()
1342 config->ltoPartitions = args::getInteger(args, OPT_lto_partitions, 1); in readConfigs()
1343 config->ltoSampleProfile = args.getLastArgValue(OPT_lto_sample_profile); in readConfigs()
1344 config->ltoBBAddrMap = in readConfigs()
1347 config->ltoBasicBlockSections = in readConfigs()
1349 config->ltoUniqueBasicBlockSectionNames = in readConfigs()
1352 config->mapFile = args.getLastArgValue(OPT_Map); in readConfigs()
1353 config->mipsGotSize = args::getInteger(args, OPT_mips_got_size, 0xfff0); in readConfigs()
1354 config->mergeArmExidx = in readConfigs()
1356 config->mmapOutputFile = in readConfigs()
1358 config->nmagic = args.hasFlag(OPT_nmagic, OPT_no_nmagic, false); in readConfigs()
1359 config->noinhibitExec = args.hasArg(OPT_noinhibit_exec); in readConfigs()
1360 config->nostdlib = args.hasArg(OPT_nostdlib); in readConfigs()
1361 config->oFormatBinary = isOutputFormatBinary(args); in readConfigs()
1362 config->omagic = args.hasFlag(OPT_omagic, OPT_no_omagic, false); in readConfigs()
1363 config->optRemarksFilename = args.getLastArgValue(OPT_opt_remarks_filename); in readConfigs()
1364 config->optStatsFilename = args.getLastArgValue(OPT_plugin_opt_stats_file); in readConfigs()
1368 auto resultOrErr = remarks::parseHotnessThresholdOption(arg->getValue()); in readConfigs()
1370 error(arg->getSpelling() + ": invalid argument '" + arg->getValue() + in readConfigs()
1373 config->optRemarksHotnessThreshold = *resultOrErr; in readConfigs()
1376 config->optRemarksPasses = args.getLastArgValue(OPT_opt_remarks_passes); in readConfigs()
1377 config->optRemarksWithHotness = args.hasArg(OPT_opt_remarks_with_hotness); in readConfigs()
1378 config->optRemarksFormat = args.getLastArgValue(OPT_opt_remarks_format); in readConfigs()
1379 config->optimize = args::getInteger(args, OPT_O, 1); in readConfigs()
1380 config->orphanHandling = getOrphanHandling(args); in readConfigs()
1381 config->outputFile = args.getLastArgValue(OPT_o); in readConfigs()
1382 config->packageMetadata = args.getLastArgValue(OPT_package_metadata); in readConfigs()
1383 config->pie = args.hasFlag(OPT_pie, OPT_no_pie, false); in readConfigs()
1384 config->printIcfSections = in readConfigs()
1386 config->printGcSections = in readConfigs()
1388 config->printMemoryUsage = args.hasArg(OPT_print_memory_usage); in readConfigs()
1389 config->printArchiveStats = args.getLastArgValue(OPT_print_archive_stats); in readConfigs()
1390 config->printSymbolOrder = in readConfigs()
1392 config->rejectMismatch = !args.hasArg(OPT_no_warn_mismatch); in readConfigs()
1393 config->relax = args.hasFlag(OPT_relax, OPT_no_relax, true); in readConfigs()
1394 config->relaxGP = args.hasFlag(OPT_relax_gp, OPT_no_relax_gp, false); in readConfigs()
1395 config->rpath = getRpath(args); in readConfigs()
1396 config->relocatable = args.hasArg(OPT_relocatable); in readConfigs()
1397 config->resolveGroups = in readConfigs()
1401 // --save-temps implies saving all temps. in readConfigs()
1403 config->saveTempsArgs.insert(s); in readConfigs()
1406 StringRef s = arg->getValue(); in readConfigs()
1408 config->saveTempsArgs.insert(s); in readConfigs()
1410 error("unknown --save-temps value: " + s); in readConfigs()
1414 config->searchPaths = args::getStrings(args, OPT_library_path); in readConfigs()
1415 config->sectionStartMap = getSectionStartMap(args); in readConfigs()
1416 config->shared = args.hasArg(OPT_shared); in readConfigs()
1417 config->singleRoRx = !args.hasFlag(OPT_rosegment, OPT_no_rosegment, true); in readConfigs()
1418 config->soName = args.getLastArgValue(OPT_soname); in readConfigs()
1419 config->sortSection = getSortSection(args); in readConfigs()
1420 config->splitStackAdjustSize = args::getInteger(args, OPT_split_stack_adjust_size, 16384); in readConfigs()
1421 config->strip = getStrip(args); in readConfigs()
1422 config->sysroot = args.getLastArgValue(OPT_sysroot); in readConfigs()
1423 config->target1Rel = args.hasFlag(OPT_target1_rel, OPT_target1_abs, false); in readConfigs()
1424 config->target2 = getTarget2(args); in readConfigs()
1425 config->thinLTOCacheDir = args.getLastArgValue(OPT_thinlto_cache_dir); in readConfigs()
1426 config->thinLTOCachePolicy = CHECK( in readConfigs()
1428 "--thinlto-cache-policy: invalid cache policy"); in readConfigs()
1429 config->thinLTOEmitImportsFiles = args.hasArg(OPT_thinlto_emit_imports_files); in readConfigs()
1430 config->thinLTOEmitIndexFiles = args.hasArg(OPT_thinlto_emit_index_files) || in readConfigs()
1433 config->thinLTOIndexOnly = args.hasArg(OPT_thinlto_index_only) || in readConfigs()
1435 config->thinLTOIndexOnlyArg = args.getLastArgValue(OPT_thinlto_index_only_eq); in readConfigs()
1436 config->thinLTOObjectSuffixReplace = in readConfigs()
1438 std::tie(config->thinLTOPrefixReplaceOld, config->thinLTOPrefixReplaceNew, in readConfigs()
1439 config->thinLTOPrefixReplaceNativeObject) = in readConfigs()
1441 if (config->thinLTOEmitIndexFiles && !config->thinLTOIndexOnly) { in readConfigs()
1443 error("--thinlto-object-suffix-replace is not supported with " in readConfigs()
1444 "--thinlto-emit-index-files"); in readConfigs()
1446 error("--thinlto-prefix-replace is not supported with " in readConfigs()
1447 "--thinlto-emit-index-files"); in readConfigs()
1449 if (!config->thinLTOPrefixReplaceNativeObject.empty() && in readConfigs()
1450 config->thinLTOIndexOnlyArg.empty()) { in readConfigs()
1451 error("--thinlto-prefix-replace=old_dir;new_dir;obj_dir must be used with " in readConfigs()
1452 "--thinlto-index-only="); in readConfigs()
1454 config->thinLTOModulesToCompile = in readConfigs()
1456 config->timeTraceEnabled = args.hasArg(OPT_time_trace_eq); in readConfigs()
1457 config->timeTraceGranularity = in readConfigs()
1459 config->trace = args.hasArg(OPT_trace); in readConfigs()
1460 config->undefined = args::getStrings(args, OPT_undefined); in readConfigs()
1461 config->undefinedVersion = in readConfigs()
1463 config->unique = args.hasArg(OPT_unique); in readConfigs()
1464 config->useAndroidRelrTags = args.hasFlag( in readConfigs()
1466 config->warnBackrefs = in readConfigs()
1468 config->warnCommon = args.hasFlag(OPT_warn_common, OPT_no_warn_common, false); in readConfigs()
1469 config->warnSymbolOrdering = in readConfigs()
1471 config->whyExtract = args.getLastArgValue(OPT_why_extract); in readConfigs()
1472 config->zCombreloc = getZFlag(args, "combreloc", "nocombreloc", true); in readConfigs()
1473 config->zCopyreloc = getZFlag(args, "copyreloc", "nocopyreloc", true); in readConfigs()
1474 config->zForceBti = hasZOption(args, "force-bti"); in readConfigs()
1475 config->zForceIbt = hasZOption(args, "force-ibt"); in readConfigs()
1476 config->zGcs = getZGcs(args); in readConfigs()
1477 config->zGlobal = hasZOption(args, "global"); in readConfigs()
1478 config->zGnustack = getZGnuStack(args); in readConfigs()
1479 config->zHazardplt = hasZOption(args, "hazardplt"); in readConfigs()
1480 config->zIfuncNoplt = hasZOption(args, "ifunc-noplt"); in readConfigs()
1481 config->zInitfirst = hasZOption(args, "initfirst"); in readConfigs()
1482 config->zInterpose = hasZOption(args, "interpose"); in readConfigs()
1483 config->zKeepTextSectionPrefix = getZFlag( in readConfigs()
1484 args, "keep-text-section-prefix", "nokeep-text-section-prefix", false); in readConfigs()
1485 config->zLrodataAfterBss = in readConfigs()
1486 getZFlag(args, "lrodata-after-bss", "nolrodata-after-bss", false); in readConfigs()
1487 config->zNodefaultlib = hasZOption(args, "nodefaultlib"); in readConfigs()
1488 config->zNodelete = hasZOption(args, "nodelete"); in readConfigs()
1489 config->zNodlopen = hasZOption(args, "nodlopen"); in readConfigs()
1490 config->zNow = getZFlag(args, "now", "lazy", false); in readConfigs()
1491 config->zOrigin = hasZOption(args, "origin"); in readConfigs()
1492 config->zPacPlt = hasZOption(args, "pac-plt"); in readConfigs()
1493 config->zRelro = getZFlag(args, "relro", "norelro", true); in readConfigs()
1494 config->zRetpolineplt = hasZOption(args, "retpolineplt"); in readConfigs()
1495 config->zRodynamic = hasZOption(args, "rodynamic"); in readConfigs()
1496 config->zSeparate = getZSeparate(args); in readConfigs()
1497 config->zShstk = hasZOption(args, "shstk"); in readConfigs()
1498 config->zStackSize = args::getZOptionValue(args, OPT_z, "stack-size", 0); in readConfigs()
1499 config->zStartStopGC = in readConfigs()
1500 getZFlag(args, "start-stop-gc", "nostart-stop-gc", true); in readConfigs()
1501 config->zStartStopVisibility = getZStartStopVisibility(args); in readConfigs()
1502 config->zText = getZFlag(args, "text", "notext", true); in readConfigs()
1503 config->zWxneeded = hasZOption(args, "wxneeded"); in readConfigs()
1505 config->power10Stubs = args.getLastArgValue(OPT_power10_stubs_eq) != "no"; in readConfigs()
1508 if (arg->getOption().matches(OPT_eb)) in readConfigs()
1509 config->optEB = true; in readConfigs()
1511 config->optEL = true; in readConfigs()
1515 StringRef value(arg->getValue()); in readConfigs()
1516 remapInputs(value, arg->getSpelling()); in readConfigs()
1519 StringRef filename(arg->getValue()); in readConfigs()
1523 // Parse 'from-glob=to-file' lines, ignoring #-led comments. in readConfigs()
1530 constexpr StringRef errPrefix = "--shuffle-sections=: "; in readConfigs()
1531 std::pair<StringRef, StringRef> kv = StringRef(arg->getValue()).split('='); in readConfigs()
1534 arg->getValue() + "'"); in readConfigs()
1537 // Signed so that <section_glob>=-1 is allowed. in readConfigs()
1542 config->shuffleSections.emplace_back(std::move(*pat), uint32_t(v)); in readConfigs()
1547 auto reports = {std::make_pair("bti-report", &config->zBtiReport), in readConfigs()
1548 std::make_pair("cet-report", &config->zCetReport), in readConfigs()
1549 std::make_pair("gcs-report", &config->zGcsReport), in readConfigs()
1550 std::make_pair("pauth-report", &config->zPauthReport)}; in readConfigs()
1553 StringRef(arg->getValue()).split('='); in readConfigs()
1557 arg->claim(); in readConfigs()
1559 error(Twine("-z ") + reportArg.first + "= parameter " + option.second + in readConfigs()
1569 StringRef(arg->getValue()).split(fields, '='); in readConfigs()
1571 error(arg->getSpelling() + in readConfigs()
1572 ": parse error, not 'section-glob=[none|zlib|zstd]'"); in readConfigs()
1576 auto type = getCompressionType(typeStr, arg->getSpelling()); in readConfigs()
1580 error(arg->getSpelling() + in readConfigs()
1581 ": expected a non-negative integer compression level, but got '" + in readConfigs()
1585 config->compressSections.emplace_back(std::move(*pat), type, level); in readConfigs()
1587 error(arg->getSpelling() + ": " + toString(pat.takeError())); in readConfigs()
1594 StringRef(arg->getValue()).split('='); in readConfigs()
1595 if (option.first != "dead-reloc-in-nonalloc") in readConfigs()
1597 arg->claim(); in readConfigs()
1598 constexpr StringRef errPrefix = "-z dead-reloc-in-nonalloc=: "; in readConfigs()
1606 error(errPrefix + "expected a non-negative integer, but got '" + in readConfigs()
1609 config->deadRelocInNonAlloc.emplace_back(std::move(*pat), v); in readConfigs()
1618 parseClangOption(saver().save("-mcpu=" + StringRef(arg->getValue())), in readConfigs()
1619 arg->getSpelling()); in readConfigs()
1622 parseClangOption(std::string("-") + arg->getValue(), arg->getSpelling()); in readConfigs()
1624 // GCC collect2 passes -plugin-opt=path/to/lto-wrapper with an absolute or in readConfigs()
1625 // relative path. Just ignore. If not ended with "lto-wrapper" (or in readConfigs()
1626 // "lto-wrapper.exe" for GCC cross-compiled for Windows), consider it an in readConfigs()
1629 StringRef v(arg->getValue()); in readConfigs()
1630 if (!v.ends_with("lto-wrapper") && !v.ends_with("lto-wrapper.exe")) in readConfigs()
1631 error(arg->getSpelling() + ": unknown plugin option '" + arg->getValue() + in readConfigs()
1635 config->passPlugins = args::getStrings(args, OPT_load_pass_plugins); in readConfigs()
1637 // Parse -mllvm options. in readConfigs()
1639 parseClangOption(arg->getValue(), arg->getSpelling()); in readConfigs()
1640 config->mllvmOpts.emplace_back(arg->getValue()); in readConfigs()
1643 config->ltoKind = LtoKind::Default; in readConfigs()
1645 StringRef s = arg->getValue(); in readConfigs()
1647 config->ltoKind = LtoKind::UnifiedThin; in readConfigs()
1649 config->ltoKind = LtoKind::UnifiedRegular; in readConfigs()
1651 config->ltoKind = LtoKind::Default; in readConfigs()
1656 // --threads= takes a positive integer and provides the default value for in readConfigs()
1657 // --thinlto-jobs=. If unspecified, cap the number of threads since in readConfigs()
1659 // non-LTO parts. in readConfigs()
1661 StringRef v(arg->getValue()); in readConfigs()
1664 error(arg->getSpelling() + ": expected a positive integer, but got '" + in readConfigs()
1665 arg->getValue() + "'"); in readConfigs()
1667 config->thinLTOJobs = v; in readConfigs()
1669 log("set maximum concurrency to 16, specify --threads= to change"); in readConfigs()
1673 config->thinLTOJobs = arg->getValue(); in readConfigs()
1674 config->threadCount = parallel::strategy.compute_thread_count(); in readConfigs()
1676 if (config->ltoPartitions == 0) in readConfigs()
1677 error("--lto-partitions: number of threads must be > 0"); in readConfigs()
1678 if (!get_threadpool_strategy(config->thinLTOJobs)) in readConfigs()
1679 error("--thinlto-jobs: invalid job count: " + config->thinLTOJobs); in readConfigs()
1681 if (config->splitStackAdjustSize < 0) in readConfigs()
1682 error("--split-stack-adjust-size: size must be >= 0"); in readConfigs()
1685 // the base address. However, lld places the R PT_LOAD first. -Ttext-segment in readConfigs()
1686 // is an old-fashioned option that does not play well with lld's layout. in readConfigs()
1687 // Suggest --image-base as a likely alternative. in readConfigs()
1689 error("-Ttext-segment is not supported. Use --image-base if you " in readConfigs()
1694 StringRef s = arg->getValue(); in readConfigs()
1695 std::tie(config->ekind, config->emachine, config->osabi) = in readConfigs()
1697 config->mipsN32Abi = in readConfigs()
1699 config->emulation = s; in readConfigs()
1702 // Parse --hash-style={sysv,gnu,both}. in readConfigs()
1704 StringRef s = arg->getValue(); in readConfigs()
1706 config->sysvHash = true; in readConfigs()
1708 config->gnuHash = true; in readConfigs()
1710 config->sysvHash = config->gnuHash = true; in readConfigs()
1712 error("unknown --hash-style: " + s); in readConfigs()
1716 config->mapFile = "-"; in readConfigs()
1718 // Page alignment can be disabled by the -n (--nmagic) and -N (--omagic). in readConfigs()
1720 // it. Also disable RELRO for -r. in readConfigs()
1721 if (config->nmagic || config->omagic || config->relocatable) in readConfigs()
1722 config->zRelro = false; in readConfigs()
1724 std::tie(config->buildId, config->buildIdVector) = getBuildId(args); in readConfigs()
1726 if (getZFlag(args, "pack-relative-relocs", "nopack-relative-relocs", false)) { in readConfigs()
1727 config->relrGlibc = true; in readConfigs()
1728 config->relrPackDynRelocs = true; in readConfigs()
1730 std::tie(config->androidPackDynRelocs, config->relrPackDynRelocs) = in readConfigs()
1736 error("--symbol-ordering-file and --call-graph-order-file " in readConfigs()
1738 if (std::optional<MemoryBufferRef> buffer = readFile(arg->getValue())) { in readConfigs()
1739 config->symbolOrderingFile = getSymbolOrderingFile(*buffer); in readConfigs()
1742 config->callGraphProfileSort = CGProfileSortKind::None; in readConfigs()
1746 assert(config->versionDefinitions.empty()); in readConfigs()
1747 config->versionDefinitions.push_back( in readConfigs()
1749 config->versionDefinitions.push_back( in readConfigs()
1752 // If --retain-symbol-file is used, we'll keep only the symbols listed in in readConfigs()
1755 config->versionDefinitions[VER_NDX_LOCAL].nonLocalPatterns.push_back( in readConfigs()
1757 if (std::optional<MemoryBufferRef> buffer = readFile(arg->getValue())) in readConfigs()
1759 config->versionDefinitions[VER_NDX_GLOBAL].nonLocalPatterns.push_back( in readConfigs()
1764 StringRef pattern(arg->getValue()); in readConfigs()
1766 config->warnBackrefsExclude.push_back(std::move(*pat)); in readConfigs()
1768 error(arg->getSpelling() + ": " + toString(pat.takeError()) + ": " + in readConfigs()
1772 // For -no-pie and -pie, --export-dynamic-symbol specifies defined symbols in readConfigs()
1773 // which should be exported. For -shared, references to matched non-local in readConfigs()
1775 // even if other options express a symbolic intention: -Bsymbolic, in readConfigs()
1776 // -Bsymbolic-functions (if STT_FUNC), --dynamic-list. in readConfigs()
1778 config->dynamicList.push_back( in readConfigs()
1779 {arg->getValue(), /*isExternCpp=*/false, in readConfigs()
1780 /*hasWildcard=*/hasWildcard(arg->getValue())}); in readConfigs()
1782 // --export-dynamic-symbol-list specifies a list of --export-dynamic-symbol in readConfigs()
1783 // patterns. --dynamic-list is --export-dynamic-symbol-list plus -Bsymbolic in readConfigs()
1785 config->symbolic = in readConfigs()
1786 config->bsymbolic == BsymbolicKind::All || args.hasArg(OPT_dynamic_list); in readConfigs()
1789 if (std::optional<MemoryBufferRef> buffer = readFile(arg->getValue())) in readConfigs()
1793 if (std::optional<std::string> path = searchScript(arg->getValue())) { in readConfigs()
1797 error(Twine("cannot find version script ") + arg->getValue()); in readConfigs()
1806 ELFKind k = config->ekind; in setConfigs()
1807 uint16_t m = config->emachine; in setConfigs()
1809 config->copyRelocs = (config->relocatable || config->emitRelocs); in setConfigs()
1810 config->is64 = (k == ELF64LEKind || k == ELF64BEKind); in setConfigs()
1811 config->isLE = (k == ELF32LEKind || k == ELF64LEKind); in setConfigs()
1812 config->endianness = config->isLE ? endianness::little : endianness::big; in setConfigs()
1813 config->isMips64EL = (k == ELF64LEKind && m == EM_MIPS); in setConfigs()
1814 config->isPic = config->pie || config->shared; in setConfigs()
1815 config->picThunk = args.hasArg(OPT_pic_veneer, config->isPic); in setConfigs()
1816 config->wordsize = config->is64 ? 8 : 4; in setConfigs()
1832 config->isRela = getIsRela(args); in setConfigs()
1836 // if --apply-dynamic-relocs is used. in setConfigs()
1839 config->writeAddends = args.hasFlag(OPT_apply_dynamic_relocs, in setConfigs()
1841 !config->isRela; in setConfigs()
1850 config->checkDynamicRelocs = in setConfigs()
1853 config->tocOptimize = in setConfigs()
1855 config->pcRelOptimize = in setConfigs()
1859 if (config->emachine == EM_MIPS) in setConfigs()
1860 config->sysvHash = true; in setConfigs()
1862 config->sysvHash = config->gnuHash = true; in setConfigs()
1867 config->warnMissingEntry = in setConfigs()
1868 (!config->entry.empty() || (!config->shared && !config->relocatable)); in setConfigs()
1869 if (config->entry.empty() && !config->relocatable) in setConfigs()
1870 config->entry = config->emachine == EM_MIPS ? "__start" : "_start"; in setConfigs()
1871 if (config->outputFile.empty()) in setConfigs()
1872 config->outputFile = "a.out"; in setConfigs()
1876 // find that it failed because there was a mistake in their command-line. in setConfigs()
1879 if (auto e = tryCreateFile(config->outputFile)) in setConfigs()
1880 error("cannot open output file " + config->outputFile + ": " + in setConfigs()
1882 if (auto e = tryCreateFile(config->mapFile)) in setConfigs()
1883 error("cannot open map file " + config->mapFile + ": " + e.message()); in setConfigs()
1884 if (auto e = tryCreateFile(config->whyExtract)) in setConfigs()
1885 error("cannot open --why-extract= file " + config->whyExtract + ": " + in setConfigs()
1895 error("unknown --format value: " + s + in isFormatBinary()
1902 // For --{push,pop}-state. in createFiles()
1905 // -r implies -Bstatic and has precedence over -Bdynamic. in createFiles()
1906 config->isStatic = config->relocatable; in createFiles()
1913 switch (arg->getOption().getID()) { in createFiles()
1915 addLibrary(arg->getValue()); in createFiles()
1919 addFile(arg->getValue(), /*withLOption=*/false); in createFiles()
1925 std::tie(from, to) = StringRef(arg->getValue()).split('='); in createFiles()
1927 error("--defsym: syntax error: " + StringRef(arg->getValue())); in createFiles()
1929 readDefsym(from, MemoryBufferRef(to, "--defsym")); in createFiles()
1934 if (std::optional<std::string> path = searchScript(arg->getValue())) { in createFiles()
1936 if (arg->getOption().matches(OPT_default_script)) { in createFiles()
1945 error(Twine("cannot find linker script ") + arg->getValue()); in createFiles()
1948 config->asNeeded = true; in createFiles()
1951 config->formatBinary = isFormatBinary(arg->getValue()); in createFiles()
1954 config->asNeeded = false; in createFiles()
1959 config->isStatic = true; in createFiles()
1962 if (!config->relocatable) in createFiles()
1963 config->isStatic = false; in createFiles()
1972 if (std::optional<MemoryBufferRef> mb = readFile(arg->getValue())) { in createFiles()
1974 files.back()->justSymbols = true; in createFiles()
1980 else if (std::optional<MemoryBufferRef> mb = readFile(arg->getValue())) in createFiles()
1985 error("nested --start-group"); in createFiles()
1990 error("stray --end-group"); in createFiles()
1996 error("nested --start-lib"); in createFiles()
1998 error("may not nest --start-lib in --start-group"); in createFiles()
2004 error("stray --end-lib"); in createFiles()
2010 stack.emplace_back(config->asNeeded, config->isStatic, inWholeArchive); in createFiles()
2014 error("unbalanced --push-state/--pop-state"); in createFiles()
2017 std::tie(config->asNeeded, config->isStatic, inWholeArchive) = stack.back(); in createFiles()
2029 // If -m <machine_type> was not given, infer it from object files.
2031 if (config->ekind != ELFNoneKind) in inferMachineType()
2036 if (f->ekind == ELFNoneKind) in inferMachineType()
2040 config->ekind = f->ekind; in inferMachineType()
2041 config->emachine = f->emachine; in inferMachineType()
2042 config->mipsN32Abi = config->emachine == EM_MIPS && isMipsN32Abi(f); in inferMachineType()
2044 config->osabi = f->osabi; in inferMachineType()
2045 if (f->osabi != ELFOSABI_NONE) in inferMachineType()
2049 error("target emulation unknown: -m or at least one .o file required"); in inferMachineType()
2052 // Parse -z max-page-size=<value>. The default value is defined by
2055 uint64_t val = args::getZOptionValue(args, OPT_z, "max-page-size", in getMaxPageSize()
2056 target->defaultMaxPageSize); in getMaxPageSize()
2058 error("max-page-size: value isn't a power of 2"); in getMaxPageSize()
2059 return target->defaultMaxPageSize; in getMaxPageSize()
2061 if (config->nmagic || config->omagic) { in getMaxPageSize()
2062 if (val != target->defaultMaxPageSize) in getMaxPageSize()
2063 warn("-z max-page-size set, but paging disabled by omagic or nmagic"); in getMaxPageSize()
2069 // Parse -z common-page-size=<value>. The default value is defined by
2072 uint64_t val = args::getZOptionValue(args, OPT_z, "common-page-size", in getCommonPageSize()
2073 target->defaultCommonPageSize); in getCommonPageSize()
2075 error("common-page-size: value isn't a power of 2"); in getCommonPageSize()
2076 return target->defaultCommonPageSize; in getCommonPageSize()
2078 if (config->nmagic || config->omagic) { in getCommonPageSize()
2079 if (val != target->defaultCommonPageSize) in getCommonPageSize()
2080 warn("-z common-page-size set, but paging disabled by omagic or nmagic"); in getCommonPageSize()
2084 if (val > config->maxPageSize) in getCommonPageSize()
2085 val = config->maxPageSize; in getCommonPageSize()
2089 // Parses --image-base option.
2091 // Because we are using "Config->maxPageSize" here, this function has to be in getImageBase()
2097 StringRef s = arg->getValue(); in getImageBase()
2100 error("--image-base: number expected, but got " + s); in getImageBase()
2103 if ((v % config->maxPageSize) != 0) in getImageBase()
2104 warn("--image-base: address isn't multiple of page size: " + s); in getImageBase()
2108 // Parses `--exclude-libs=lib,lib,...`.
2113 StringRef s = arg->getValue(); in getExcludeLibs()
2126 // Handles the --exclude-libs option. If a static library file is specified
2127 // by the --exclude-libs option, all public symbols from the archive become
2137 if (file->archiveName.empty() || in excludeLibs()
2138 !(all || libs.count(path::filename(file->archiveName)))) in excludeLibs()
2140 ArrayRef<Symbol *> symbols = file->getSymbols(); in excludeLibs()
2142 symbols = cast<ELFFileBase>(file)->getGlobalSymbols(); in excludeLibs()
2144 if (!sym->isUndefined() && sym->file == file) in excludeLibs()
2145 sym->versionId = VER_NDX_LOCAL; in excludeLibs()
2159 sym->isUsedInRegularObj = true; in handleUndefined()
2161 if (!sym->isLazy()) in handleUndefined()
2163 sym->extract(); in handleUndefined()
2164 if (!config->whyExtract.empty()) in handleUndefined()
2165 ctx.whyExtractRecords.emplace_back(option, sym->file, *sym); in handleUndefined()
2168 // As an extension to GNU linkers, lld supports a variant of `-u`
2170 // pattern are handled as if they were given by `-u`.
2174 error("--undefined-glob: " + toString(pat.takeError()) + ": " + arg); in handleUndefinedGlob()
2178 // Calling sym->extract() in the loop is not safe because it may add new in handleUndefinedGlob()
2182 if (!sym->isPlaceholder() && pat->match(sym->getName())) in handleUndefinedGlob()
2186 handleUndefined(sym, "--undefined-glob"); in handleUndefinedGlob()
2191 if (sym && sym->isLazy() && isa<BitcodeFile>(sym->file)) { in handleLibcall()
2192 if (!config->whyExtract.empty()) in handleLibcall()
2193 ctx.whyExtractRecords.emplace_back("<libcall>", sym->file, *sym); in handleLibcall()
2194 sym->extract(); in handleLibcall()
2199 if (config->printArchiveStats.empty()) in writeArchiveStats()
2203 raw_fd_ostream os = ctx.openAuxiliaryFile(config->printArchiveStats, ec); in writeArchiveStats()
2205 error("--print-archive-stats=: cannot open " + config->printArchiveStats + in writeArchiveStats()
2215 if (file->archiveName.size()) in writeArchiveStats()
2216 ++extracted[CachedHashStringRef(file->archiveName)]; in writeArchiveStats()
2218 if (file->archiveName.size()) in writeArchiveStats()
2219 ++extracted[CachedHashStringRef(file->archiveName)]; in writeArchiveStats()
2229 if (config->whyExtract.empty()) in writeWhyExtract()
2233 raw_fd_ostream os = ctx.openAuxiliaryFile(config->whyExtract, ec); in writeWhyExtract()
2235 error("cannot open --why-extract= file " + config->whyExtract + ": " + in writeWhyExtract()
2252 // with --warn-backrefs-exclude=. The value may look like (for --start-lib) in reportBackrefs()
2255 for (const llvm::GlobPattern &pat : config->warnBackrefsExclude) in reportBackrefs()
2266 // Handle --dependency-file=<path>. If that option is given, lld creates a
2269 // <output-file>: <input-file> ...
2271 // <input-file>:
2273 // where <output-file> is a pathname of an output file and <input-file>
2276 // phony targets for every <input-file> to avoid an error when that file is
2283 // executable depends on all user-generated object files. Normally, you
2287 // part of your program. By using --dependency-file option, you can make
2292 raw_fd_ostream os = ctx.openAuxiliaryFile(config->dependencyFile, ec); in writeDependencyFile()
2294 error("cannot open " + config->dependencyFile + ": " + ec.message()); in writeDependencyFile()
2312 while (j > 0 && nativePath[--j] == '\\') in writeDependencyFile()
2321 os << config->outputFile << ":"; in writeDependencyFile()
2322 for (StringRef path : config->dependencyFiles) { in writeDependencyFile()
2328 for (StringRef path : config->dependencyFiles) { in writeDependencyFile()
2342 if (!file->hasCommonSyms) in replaceCommonSymbols()
2344 for (Symbol *sym : file->getGlobalSymbols()) { in replaceCommonSymbols()
2349 auto *bss = make<BssSection>("COMMON", s->size, s->alignment); in replaceCommonSymbols()
2350 bss->file = s->file; in replaceCommonSymbols()
2352 Defined(s->file, StringRef(), s->binding, s->stOther, s->type, in replaceCommonSymbols()
2353 /*value=*/0, s->size, bss) in replaceCommonSymbols()
2359 // The section referred to by `s` is considered address-significant. Set the
2363 if (d->section) in markAddrsig()
2364 // We don't need to keep text sections unique under --icf=all even if they in markAddrsig()
2365 // are address-significant. in markAddrsig()
2366 if (config->icf == ICFLevel::Safe || !(d->section->flags & SHF_EXECINSTR)) in markAddrsig()
2367 d->section->keepUnique = true; in markAddrsig()
2370 // Record sections that define symbols mentioned in --keep-unique <symbol>
2371 // and symbols referred to by address-significance tables. These sections are
2376 StringRef name = arg->getValue(); in findKeepUniqueSections()
2378 if (!d || !d->section) { in findKeepUniqueSections()
2382 d->section->keepUnique = true; in findKeepUniqueSections()
2385 // --icf=all --ignore-data-address-equality means that we can ignore in findKeepUniqueSections()
2386 // the dynsym and address-significance tables entirely. in findKeepUniqueSections()
2387 if (config->icf == ICFLevel::All && config->ignoreDataAddressEquality) in findKeepUniqueSections()
2390 // Symbols in the dynsym could be address-significant in other executables in findKeepUniqueSections()
2391 // or DSOs, so we conservatively mark them as address-significant. in findKeepUniqueSections()
2393 if (sym->includeInDynsym()) in findKeepUniqueSections()
2396 // Visit the address-significance table in each object file and mark each in findKeepUniqueSections()
2397 // referenced symbol as address-significant. in findKeepUniqueSections()
2400 ArrayRef<Symbol *> syms = obj->getSymbols(); in findKeepUniqueSections()
2401 if (obj->addrsigSec) { in findKeepUniqueSections()
2403 check(obj->getObj().getSectionContents(*obj->addrsigSec)); in findKeepUniqueSections()
2415 // If an object file does not have an address-significance table, in findKeepUniqueSections()
2416 // conservatively mark all of its symbols as address-significant. in findKeepUniqueSections()
2430 const RelsOrRelas<ELFT> rels = s->template relsOrRelas<ELFT>(); in readSymbolPartitionSection()
2432 sym = &s->file->getRelocTargetSym(rels.rels[0]); in readSymbolPartitionSection()
2434 sym = &s->file->getRelocTargetSym(rels.relas[0]); in readSymbolPartitionSection()
2435 if (!isa<Defined>(sym) || !sym->includeInDynsym()) in readSymbolPartitionSection()
2438 StringRef partName = reinterpret_cast<const char *>(s->content().data()); in readSymbolPartitionSection()
2441 sym->partition = part.getNumber(); in readSymbolPartitionSection()
2449 if (script->hasSectionsCommand) in readSymbolPartitionSection()
2450 error(toString(s->file) + in readSymbolPartitionSection()
2452 if (script->hasPhdrsCommands()) in readSymbolPartitionSection()
2453 error(toString(s->file) + in readSymbolPartitionSection()
2455 if (!config->sectionStartMap.empty()) in readSymbolPartitionSection()
2456 error(toString(s->file) + ": partitions cannot be used with " in readSymbolPartitionSection()
2457 "--section-start, -Ttext, -Tdata or -Tbss"); in readSymbolPartitionSection()
2458 if (config->emachine == EM_MIPS) in readSymbolPartitionSection()
2459 error(toString(s->file) + ": partitions cannot be used on this target"); in readSymbolPartitionSection()
2470 sym->partition = newPart.getNumber(); in readSymbolPartitionSection()
2474 // With --thinlto-index-only, all buffers are nearly unused from now on in markBuffersAsDontNeed()
2487 bufs.insert(file->mb.getBufferStart()); in markBuffersAsDontNeed()
2489 bufs.insert(file->mb.getBufferStart()); in markBuffersAsDontNeed()
2495 // This function is where all the optimizations of link-time
2501 // the compiler at once, it can do a whole-program optimization.
2508 lto->add(*file); in compileBitcodeFiles()
2513 for (InputFile *file : lto->compile()) { in compileBitcodeFiles()
2515 obj->parse(/*ignoreComdats=*/true); in compileBitcodeFiles()
2517 // Parse '@' in symbol names for non-relocatable output. in compileBitcodeFiles()
2518 if (!config->relocatable) in compileBitcodeFiles()
2519 for (Symbol *sym : obj->getGlobalSymbols()) in compileBitcodeFiles()
2520 if (sym->hasVersionSuffix) in compileBitcodeFiles()
2521 sym->parseSymbolVersion(); in compileBitcodeFiles()
2526 // The --wrap option is a feature to rename symbols so that you can write
2527 // wrappers for existing functions. If you pass `--wrap=foo`, all
2533 // This data structure is instantiated for each --wrap option.
2540 // Handles --wrap option.
2550 StringRef name = arg->getValue(); in addWrappedSymbols()
2559 symtab.addUnusedUndefined(saver().save("__wrap_" + name), sym->binding); in addWrappedSymbols()
2565 symtab.addUnusedUndefined(name, sym->binding); in addWrappedSymbols()
2568 sym->binding = real->binding; in addWrappedSymbols()
2576 real->scriptDefined = true; in addWrappedSymbols()
2577 sym->scriptDefined = true; in addWrappedSymbols()
2588 if (real->referenced || real->isDefined()) in addWrappedSymbols()
2589 sym->referencedAfterWrap = true; in addWrappedSymbols()
2590 if (sym->referenced || sym->isDefined()) in addWrappedSymbols()
2591 wrap->referencedAfterWrap = true; in addWrappedSymbols()
2609 const char *suffix2 = sym2->getVersionSuffix(); in combineVersionedSymbol()
2614 // If both foo@v1 and foo@@v1 are defined and non-weak, report a in combineVersionedSymbol()
2617 sym2->checkDuplicate(cast<Defined>(sym)); in combineVersionedSymbol()
2618 sym2->resolve(cast<Defined>(sym)); in combineVersionedSymbol()
2620 sym2->resolve(cast<Undefined>(sym)); in combineVersionedSymbol()
2622 sym2->resolve(cast<SharedSymbol>(sym)); in combineVersionedSymbol()
2628 if (sym2->versionId > VER_NDX_GLOBAL in combineVersionedSymbol()
2629 ? config->versionDefinitions[sym2->versionId].name == suffix1 + 1 in combineVersionedSymbol()
2630 : sym1->section == sym2->section && sym1->value == sym2->value) { in combineVersionedSymbol()
2638 sym2->symbolKind = Symbol::PlaceholderKind; in combineVersionedSymbol()
2639 sym2->isUsedInRegularObj = false; in combineVersionedSymbol()
2644 // Do renaming for --wrap and foo@v1 by updating pointers to symbols.
2658 // symbols with a non-default version (foo@v1) and check whether it should be in redirectSymbols()
2660 if (config->versionDefinitions.size() > 2) in redirectSymbols()
2662 if (sym->hasVersionSuffix) in redirectSymbols()
2670 for (Symbol *&sym : file->getMutableGlobalSymbols()) in redirectSymbols()
2693 // To enable CET (x86's hardware-assisted control flow enforcement), each
2694 // source file must be compiled with -fcf-protection. Object files compiled
2702 // For AArch64 PAuth-enabled object files, the core info of all of them must
2704 // ones can be allowed (see -z pauth-report).
2706 if (config->emachine != EM_386 && config->emachine != EM_X86_64 && in readSecurityNotes()
2707 config->emachine != EM_AARCH64) in readSecurityNotes()
2710 config->andFeatures = -1; in readSecurityNotes()
2713 if (config->emachine == EM_AARCH64) { in readSecurityNotes()
2715 return !f->aarch64PauthAbiCoreInfo.empty(); in readSecurityNotes()
2718 ctx.aarch64PauthAbiCoreInfo = (*it)->aarch64PauthAbiCoreInfo; in readSecurityNotes()
2719 referenceFileName = (*it)->getName(); in readSecurityNotes()
2724 uint32_t features = f->andFeatures; in readSecurityNotes()
2727 config->zBtiReport, features, GNU_PROPERTY_AARCH64_FEATURE_1_BTI, in readSecurityNotes()
2728 toString(f) + ": -z bti-report: file does not have " in readSecurityNotes()
2732 config->zGcsReport, features, GNU_PROPERTY_AARCH64_FEATURE_1_GCS, in readSecurityNotes()
2733 toString(f) + ": -z gcs-report: file does not have " in readSecurityNotes()
2737 config->zCetReport, features, GNU_PROPERTY_X86_FEATURE_1_IBT, in readSecurityNotes()
2738 toString(f) + ": -z cet-report: file does not have " in readSecurityNotes()
2742 config->zCetReport, features, GNU_PROPERTY_X86_FEATURE_1_SHSTK, in readSecurityNotes()
2743 toString(f) + ": -z cet-report: file does not have " in readSecurityNotes()
2746 if (config->zForceBti && !(features & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)) { in readSecurityNotes()
2748 if (config->zBtiReport == "none") in readSecurityNotes()
2749 warn(toString(f) + ": -z force-bti: file does not have " in readSecurityNotes()
2751 } else if (config->zForceIbt && in readSecurityNotes()
2753 if (config->zCetReport == "none") in readSecurityNotes()
2754 warn(toString(f) + ": -z force-ibt: file does not have " in readSecurityNotes()
2758 if (config->zPacPlt && !(features & GNU_PROPERTY_AARCH64_FEATURE_1_PAC)) { in readSecurityNotes()
2759 warn(toString(f) + ": -z pac-plt: file does not have " in readSecurityNotes()
2763 config->andFeatures &= features; in readSecurityNotes()
2768 if (f->aarch64PauthAbiCoreInfo.empty()) { in readSecurityNotes()
2769 reportMissingFeature(config->zPauthReport, in readSecurityNotes()
2771 ": -z pauth-report: file does not have AArch64 " in readSecurityNotes()
2777 if (ctx.aarch64PauthAbiCoreInfo != f->aarch64PauthAbiCoreInfo) in readSecurityNotes()
2782 toHex(f->aarch64PauthAbiCoreInfo, /*LowerCase=*/true)); in readSecurityNotes()
2786 if (config->zShstk) in readSecurityNotes()
2787 config->andFeatures |= GNU_PROPERTY_X86_FEATURE_1_SHSTK; in readSecurityNotes()
2790 if (config->zGcs == GcsPolicy::Always) in readSecurityNotes()
2791 config->andFeatures |= GNU_PROPERTY_AARCH64_FEATURE_1_GCS; in readSecurityNotes()
2792 else if (config->zGcs == GcsPolicy::Never) in readSecurityNotes()
2793 config->andFeatures &= ~GNU_PROPERTY_AARCH64_FEATURE_1_GCS; in readSecurityNotes()
2797 switch (file->ekind) { in initSectionsAndLocalSyms()
2799 cast<ObjFile<ELF32LE>>(file)->initSectionsAndLocalSyms(ignoreComdats); in initSectionsAndLocalSyms()
2802 cast<ObjFile<ELF32BE>>(file)->initSectionsAndLocalSyms(ignoreComdats); in initSectionsAndLocalSyms()
2805 cast<ObjFile<ELF64LE>>(file)->initSectionsAndLocalSyms(ignoreComdats); in initSectionsAndLocalSyms()
2808 cast<ObjFile<ELF64BE>>(file)->initSectionsAndLocalSyms(ignoreComdats); in initSectionsAndLocalSyms()
2816 switch (file->ekind) { in postParseObjectFile()
2818 cast<ObjFile<ELF32LE>>(file)->postParse(); in postParseObjectFile()
2821 cast<ObjFile<ELF32BE>>(file)->postParse(); in postParseObjectFile()
2824 cast<ObjFile<ELF64LE>>(file)->postParse(); in postParseObjectFile()
2827 cast<ObjFile<ELF64BE>>(file)->postParse(); in postParseObjectFile()
2839 // Handle --trace-symbol. in link()
2841 symtab.insert(arg->getValue())->traced = true; in link()
2845 // Handle -u/--undefined before input files. If both a.a and b.so define foo, in link()
2846 // -u foo a.a b.so will extract a.a. in link()
2847 for (StringRef name : config->undefined) in link()
2848 symtab.addUnusedUndefined(name)->referenced = true; in link()
2853 config->hasDynSymTab = !ctx.sharedFiles.empty() || config->isPic; in link()
2856 if (Symbol *sym = symtab.find(config->entry)) in link()
2857 handleUndefined(sym, "--entry"); in link()
2859 // Handle the `--undefined-glob <pattern>` options. in link()
2864 // -u/--undefined-glob, check whether PROVIDE symbols should be defined (the in link()
2866 script->addScriptReferencedSymbolsToSymTable(); in link()
2868 // Prevent LTO from removing any definition referenced by -u. in link()
2869 for (StringRef name : config->undefined) in link()
2871 sym->isUsedInRegularObj = true; in link()
2873 // Mark -init and -fini symbols so that the LTO doesn't eliminate them. in link()
2874 if (Symbol *sym = dyn_cast_or_null<Defined>(symtab.find(config->init))) in link()
2875 sym->isUsedInRegularObj = true; in link()
2876 if (Symbol *sym = dyn_cast_or_null<Defined>(symtab.find(config->fini))) in link()
2877 sym->isUsedInRegularObj = true; in link()
2887 // __sync_val_compare_and_swap_8 on 32-bit ARM pulls in an .init_array entry in link()
2888 // that aborts the program if the Linux kernel does not support 64-bit in link()
2890 // use 64-bit atomics. in link()
2897 llvm::Triple TT(ctx.bitcodeFiles.front()->obj->getTargetTriple()); in link()
2912 [](BitcodeFile *file) { file->postParse(); }); in link()
2932 script->declareSymbols(); in link()
2934 // Handle --exclude-libs. This is before scanVersionScript() due to a in link()
2937 // 'has undefined version' error in -shared --exclude-libs=ALL mode (PR36295). in link()
2947 if (!config->relocatable) in link()
2954 // name "foo@ver1") rather do harm, so we don't call this if -r is given. in link()
2955 if (!config->relocatable) { in link()
2962 // For --thinlto-index-only, index file creation is performed in in link()
2963 // compileBitcodeFiles, so we are done afterwards. --plugin-opt=emit-llvm and in link()
2964 // --plugin-opt=emit-asm create output files in bitcode or assembly code, in link()
2967 const bool skipLinkedOutput = config->thinLTOIndexOnly || config->emitLLVM || in link()
2968 config->ltoEmitAsm || in link()
2969 !config->thinLTOModulesToCompile.empty(); in link()
2971 // Handle --lto-validate-all-vtables-have-type-infos. in link()
2972 if (config->ltoValidateAllVtablesHaveTypeInfos) in link()
2975 // Do link-time optimization if given files are LLVM bitcode files. in link()
2979 // except a few linker-synthesized ones will be added to the symbol table. in link()
2985 // --print-archive-stats=, and --why-extract=. in link()
3014 oldFilenames.insert(f->getName()); in link()
3016 if (!oldFilenames.contains(newFile->getName())) in link()
3017 errorOrWarn("input file '" + newFile->getName() + "' added after LTO"); in link()
3020 // Handle --exclude-libs again because lto.tmp may reference additional in link()
3029 // Apply symbol renames for --wrap and combine foo@v1 and foo@@v1. in link()
3041 for (InputSectionBase *s : f->getSections()) { in link()
3051 for (InputSectionBase *s : f->getSections()) in link()
3059 if (s->type != SHT_LLVM_SYMPART) in link()
3065 // We do not want to emit debug sections if --strip-all in link()
3066 // or --strip-debug are given. in link()
3067 if (config->strip != StripPolicy::None) { in link()
3072 if (InputSectionBase *rel = isec->getRelocatedSection()) in link()
3083 if (!config->dependencyFile.empty()) in link()
3094 // The Target instance handles target-specific stuff, such as applying in link()
3095 // relocations or writing a PLT section. It also contains target-dependent in link()
3099 config->eflags = target->calcEFlags(); in link()
3104 config->maxPageSize = getMaxPageSize(args); in link()
3110 config->commonPageSize = getCommonPageSize(args); in link()
3112 config->imageBase = getImageBase(args); in link()
3115 if (!config->relocatable) in link()
3140 if (!config->relocatable) in link()
3144 if (config->emachine == EM_RISCV) in link()
3151 script->processSectionCommands(); in link()
3157 script->addOrphanSections(); in link()
3167 for (SectionCommand *cmd : script->sectionCommands) in link()
3169 osd->osec.finalizeInputSections(&script.s); in link()
3174 if (config->icf != ICFLevel::None) { in link()
3180 if (config->callGraphProfileSort != CGProfileSortKind::None) { in link()
3182 if (std::optional<MemoryBufferRef> buffer = readFile(arg->getValue())) in link()