Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 1230 deletions

diff --git a/gnu/llvm/tools/lld/lib/Driver/DarwinLdDriver.cpp b/gnu/llvm/tools/lld/lib/Driver/DarwinLdDriver.cpp
deleted file mode 100644
index bbac230df45..00000000000
--- a/gnu/llvm/tools/lld/lib/Driver/DarwinLdDriver.cpp
+++ /dev/null
@@ -1,1230 +0,0 @@
-//===- lib/Driver/DarwinLdDriver.cpp --------------------------------------===//
-//
-//                             The LLVM Linker
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-///
-/// Concrete instance of the Driver for darwin's ld.
-///
-//===----------------------------------------------------------------------===//
-
-#include "lld/Common/Args.h"
-#include "lld/Common/ErrorHandler.h"
-#include "lld/Common/LLVM.h"
-#include "lld/Core/ArchiveLibraryFile.h"
-#include "lld/Core/Error.h"
-#include "lld/Core/File.h"
-#include "lld/Core/Instrumentation.h"
-#include "lld/Core/LinkingContext.h"
-#include "lld/Core/Node.h"
-#include "lld/Core/PassManager.h"
-#include "lld/Core/Resolver.h"
-#include "lld/Core/SharedLibraryFile.h"
-#include "lld/Core/Simple.h"
-#include "lld/ReaderWriter/MachOLinkingContext.h"
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/Optional.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/BinaryFormat/MachO.h"
-#include "llvm/Option/Arg.h"
-#include "llvm/Option/ArgList.h"
-#include "llvm/Option/OptTable.h"
-#include "llvm/Option/Option.h"
-#include "llvm/Support/Casting.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Error.h"
-#include "llvm/Support/ErrorOr.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/Path.h"
-#include "llvm/Support/raw_ostream.h"
-#include <algorithm>
-#include <cstdint>
-#include <memory>
-#include <string>
-#include <system_error>
-#include <utility>
-#include <vector>
-
-using namespace lld;
-
-namespace {
-
-// Create enum with OPT_xxx values for each option in DarwinLdOptions.td
-enum {
-  OPT_INVALID = 0,
-#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM,  \
-               HELP, META, VALUES)                                             \
-  OPT_##ID,
-#include "DarwinLdOptions.inc"
-#undef OPTION
-};
-
-// Create prefix string literals used in DarwinLdOptions.td
-#define PREFIX(NAME, VALUE) const char *const NAME[] = VALUE;
-#include "DarwinLdOptions.inc"
-#undef PREFIX
-
-// Create table mapping all options defined in DarwinLdOptions.td
-static const llvm::opt::OptTable::Info InfoTable[] = {
-#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM,  \
-               HELPTEXT, METAVAR, VALUES)                                      \
-  {PREFIX,      NAME,      HELPTEXT,                                           \
-   METAVAR,     OPT_##ID,  llvm::opt::Option::KIND##Class,                     \
-   PARAM,       FLAGS,     OPT_##GROUP,                                        \
-   OPT_##ALIAS, ALIASARGS, VALUES},
-#include "DarwinLdOptions.inc"
-#undef OPTION
-};
-
-// Create OptTable class for parsing actual command line arguments
-class DarwinLdOptTable : public llvm::opt::OptTable {
-public:
-  DarwinLdOptTable() : OptTable(InfoTable) {}
-};
-
-static std::vector<std::unique_ptr<File>>
-makeErrorFile(StringRef path, std::error_code ec) {
-  std::vector<std::unique_ptr<File>> result;
-  result.push_back(llvm::make_unique<ErrorFile>(path, ec));
-  return result;
-}
-
-static std::vector<std::unique_ptr<File>>
-parseMemberFiles(std::unique_ptr<File> file) {
-  std::vector<std::unique_ptr<File>> members;
-  if (auto *archive = dyn_cast<ArchiveLibraryFile>(file.get())) {
-    if (std::error_code ec = archive->parseAllMembers(members))
-      return makeErrorFile(file->path(), ec);
-  } else {
-    members.push_back(std::move(file));
-  }
-  return members;
-}
-
-std::vector<std::unique_ptr<File>> loadFile(MachOLinkingContext &ctx,
-                                            StringRef path, bool wholeArchive,
-                                            bool upwardDylib) {
-  if (ctx.logInputFiles())
-    message(path);
-
-  ErrorOr<std::unique_ptr<MemoryBuffer>> mbOrErr = ctx.getMemoryBuffer(path);
-  if (std::error_code ec = mbOrErr.getError())
-    return makeErrorFile(path, ec);
-  ErrorOr<std::unique_ptr<File>> fileOrErr =
-      ctx.registry().loadFile(std::move(mbOrErr.get()));
-  if (std::error_code ec = fileOrErr.getError())
-    return makeErrorFile(path, ec);
-  std::unique_ptr<File> &file = fileOrErr.get();
-
-  // If file is a dylib, inform LinkingContext about it.
-  if (SharedLibraryFile *shl = dyn_cast<SharedLibraryFile>(file.get())) {
-    if (std::error_code ec = shl->parse())
-      return makeErrorFile(path, ec);
-    ctx.registerDylib(reinterpret_cast<mach_o::MachODylibFile *>(shl),
-                      upwardDylib);
-  }
-  if (wholeArchive)
-    return parseMemberFiles(std::move(file));
-  std::vector<std::unique_ptr<File>> files;
-  files.push_back(std::move(file));
-  return files;
-}
-
-} // end anonymous namespace
-
-// Test may be running on Windows. Canonicalize the path
-// separator to '/' to get consistent outputs for tests.
-static std::string canonicalizePath(StringRef path) {
-  char sep = llvm::sys::path::get_separator().front();
-  if (sep != '/') {
-    std::string fixedPath = path;
-    std::replace(fixedPath.begin(), fixedPath.end(), sep, '/');
-    return fixedPath;
-  } else {
-    return path;
-  }
-}
-
-static void addFile(StringRef path, MachOLinkingContext &ctx,
-                    bool loadWholeArchive, bool upwardDylib) {
-  std::vector<std::unique_ptr<File>> files =
-      loadFile(ctx, path, loadWholeArchive, upwardDylib);
-  for (std::unique_ptr<File> &file : files)
-    ctx.getNodes().push_back(llvm::make_unique<FileNode>(std::move(file)));
-}
-
-// Export lists are one symbol per line.  Blank lines are ignored.
-// Trailing comments start with #.
-static std::error_code parseExportsList(StringRef exportFilePath,
-                                        MachOLinkingContext &ctx) {
-  // Map in export list file.
-  ErrorOr<std::unique_ptr<MemoryBuffer>> mb =
-                                   MemoryBuffer::getFileOrSTDIN(exportFilePath);
-  if (std::error_code ec = mb.getError())
-    return ec;
-  ctx.addInputFileDependency(exportFilePath);
-  StringRef buffer = mb->get()->getBuffer();
-  while (!buffer.empty()) {
-    // Split off each line in the file.
-    std::pair<StringRef, StringRef> lineAndRest = buffer.split('\n');
-    StringRef line = lineAndRest.first;
-    // Ignore trailing # comments.
-    std::pair<StringRef, StringRef> symAndComment = line.split('#');
-    StringRef sym = symAndComment.first.trim();
-    if (!sym.empty())
-      ctx.addExportSymbol(sym);
-    buffer = lineAndRest.second;
-  }
-  return std::error_code();
-}
-
-/// Order files are one symbol per line. Blank lines are ignored.
-/// Trailing comments start with #. Symbol names can be prefixed with an
-/// architecture name and/or .o leaf name.  Examples:
-///     _foo
-///     bar.o:_bar
-///     libfrob.a(bar.o):_bar
-///     x86_64:_foo64
-static std::error_code parseOrderFile(StringRef orderFilePath,
-                                      MachOLinkingContext &ctx) {
-  // Map in order file.
-  ErrorOr<std::unique_ptr<MemoryBuffer>> mb =
-                                   MemoryBuffer::getFileOrSTDIN(orderFilePath);
-  if (std::error_code ec = mb.getError())
-    return ec;
-  ctx.addInputFileDependency(orderFilePath);
-  StringRef buffer = mb->get()->getBuffer();
-  while (!buffer.empty()) {
-    // Split off each line in the file.
-    std::pair<StringRef, StringRef> lineAndRest = buffer.split('\n');
-    StringRef line = lineAndRest.first;
-    buffer = lineAndRest.second;
-    // Ignore trailing # comments.
-    std::pair<StringRef, StringRef> symAndComment = line.split('#');
-    if (symAndComment.first.empty())
-      continue;
-    StringRef sym = symAndComment.first.trim();
-    if (sym.empty())
-      continue;
-    // Check for prefix.
-    StringRef prefix;
-    std::pair<StringRef, StringRef> prefixAndSym = sym.split(':');
-    if (!prefixAndSym.second.empty()) {
-      sym = prefixAndSym.second;
-      prefix = prefixAndSym.first;
-      if (!prefix.endswith(".o") && !prefix.endswith(".o)")) {
-        // If arch name prefix does not match arch being linked, ignore symbol.
-        if (!ctx.archName().equals(prefix))
-          continue;
-        prefix = "";
-      }
-    } else
-     sym = prefixAndSym.first;
-    if (!sym.empty()) {
-      ctx.appendOrderedSymbol(sym, prefix);
-      //llvm::errs() << sym << ", prefix=" << prefix << "\n";
-    }
-  }
-  return std::error_code();
-}
-
-//
-// There are two variants of the  -filelist option:
-//
-//   -filelist <path>
-// In this variant, the path is to a text file which contains one file path
-// per line.  There are no comments or trimming of whitespace.
-//
-//   -fileList <path>,<dir>
-// In this variant, the path is to a text file which contains a partial path
-// per line. The <dir> prefix is prepended to each partial path.
-//
-static llvm::Error loadFileList(StringRef fileListPath,
-                                MachOLinkingContext &ctx, bool forceLoad) {
-  // If there is a comma, split off <dir>.
-  std::pair<StringRef, StringRef> opt = fileListPath.split(',');
-  StringRef filePath = opt.first;
-  StringRef dirName = opt.second;
-  ctx.addInputFileDependency(filePath);
-  // Map in file list file.
-  ErrorOr<std::unique_ptr<MemoryBuffer>> mb =
-                                        MemoryBuffer::getFileOrSTDIN(filePath);
-  if (std::error_code ec = mb.getError())
-    return llvm::errorCodeToError(ec);
-  StringRef buffer = mb->get()->getBuffer();
-  while (!buffer.empty()) {
-    // Split off each line in the file.
-    std::pair<StringRef, StringRef> lineAndRest = buffer.split('\n');
-    StringRef line = lineAndRest.first;
-    StringRef path;
-    if (!dirName.empty()) {
-      // If there is a <dir> then prepend dir to each line.
-      SmallString<256> fullPath;
-      fullPath.assign(dirName);
-      llvm::sys::path::append(fullPath, Twine(line));
-      path = ctx.copy(fullPath.str());
-    } else {
-      // No <dir> use whole line as input file path.
-      path = ctx.copy(line);
-    }
-    if (!ctx.pathExists(path)) {
-      return llvm::make_error<GenericError>(Twine("File not found '")
-                                            + path
-                                            + "'");
-    }
-    if (ctx.testingFileUsage()) {
-      message("Found filelist entry " + canonicalizePath(path));
-    }
-    addFile(path, ctx, forceLoad, false);
-    buffer = lineAndRest.second;
-  }
-  return llvm::Error::success();
-}
-
-/// Parse number assuming it is base 16, but allow 0x prefix.
-static bool parseNumberBase16(StringRef numStr, uint64_t &baseAddress) {
-  if (numStr.startswith_lower("0x"))
-    numStr = numStr.drop_front(2);
-  return numStr.getAsInteger(16, baseAddress);
-}
-
-static void parseLLVMOptions(const LinkingContext &ctx) {
-  // Honor -mllvm
-  if (!ctx.llvmOptions().empty()) {
-    unsigned numArgs = ctx.llvmOptions().size();
-    auto **args = new const char *[numArgs + 2];
-    args[0] = "lld (LLVM option parsing)";
-    for (unsigned i = 0; i != numArgs; ++i)
-      args[i + 1] = ctx.llvmOptions()[i];
-    args[numArgs + 1] = nullptr;
-    llvm::cl::ParseCommandLineOptions(numArgs + 1, args);
-  }
-}
-
-namespace lld {
-namespace mach_o {
-
-bool parse(llvm::ArrayRef<const char *> args, MachOLinkingContext &ctx) {
-  // Parse command line options using DarwinLdOptions.td
-  DarwinLdOptTable table;
-  unsigned missingIndex;
-  unsigned missingCount;
-  llvm::opt::InputArgList parsedArgs =
-      table.ParseArgs(args.slice(1), missingIndex, missingCount);
-  if (missingCount) {
-    error("missing arg value for '" +
-          Twine(parsedArgs.getArgString(missingIndex)) + "' expected " +
-          Twine(missingCount) + " argument(s).");
-    return false;
-  }
-
-  for (auto unknownArg : parsedArgs.filtered(OPT_UNKNOWN)) {
-    warn("ignoring unknown argument: " +
-         Twine(unknownArg->getAsString(parsedArgs)));
-  }
-
-  errorHandler().Verbose = parsedArgs.hasArg(OPT_v);
-  errorHandler().ErrorLimit = args::getInteger(parsedArgs, OPT_error_limit, 20);
-
-  // Figure out output kind ( -dylib, -r, -bundle, -preload, or -static )
-  llvm::MachO::HeaderFileType fileType = llvm::MachO::MH_EXECUTE;
-  bool isStaticExecutable = false;
-  if (llvm::opt::Arg *kind = parsedArgs.getLastArg(
-          OPT_dylib, OPT_relocatable, OPT_bundle, OPT_static, OPT_preload)) {
-    switch (kind->getOption().getID()) {
-    case OPT_dylib:
-      fileType = llvm::MachO::MH_DYLIB;
-      break;
-    case OPT_relocatable:
-      fileType = llvm::MachO::MH_OBJECT;
-      break;
-    case OPT_bundle:
-      fileType = llvm::MachO::MH_BUNDLE;
-      break;
-    case OPT_static:
-      fileType = llvm::MachO::MH_EXECUTE;
-      isStaticExecutable = true;
-      break;
-    case OPT_preload:
-      fileType = llvm::MachO::MH_PRELOAD;
-      break;
-    }
-  }
-
-  // Handle -arch xxx
-  MachOLinkingContext::Arch arch = MachOLinkingContext::arch_unknown;
-  if (llvm::opt::Arg *archStr = parsedArgs.getLastArg(OPT_arch)) {
-    arch = MachOLinkingContext::archFromName(archStr->getValue());
-    if (arch == MachOLinkingContext::arch_unknown) {
-      error("unknown arch named '" + Twine(archStr->getValue()) + "'");
-      return false;
-    }
-  }
-  // If no -arch specified, scan input files to find first non-fat .o file.
-  if (arch == MachOLinkingContext::arch_unknown) {
-    for (auto &inFile : parsedArgs.filtered(OPT_INPUT)) {
-      // This is expensive because it opens and maps the file.  But that is
-      // ok because no -arch is rare.
-      if (MachOLinkingContext::isThinObjectFile(inFile->getValue(), arch))
-        break;
-    }
-    if (arch == MachOLinkingContext::arch_unknown &&
-        !parsedArgs.getLastArg(OPT_test_file_usage)) {
-      // If no -arch and no options at all, print usage message.
-      if (parsedArgs.size() == 0) {
-        table.PrintHelp(llvm::outs(),
-                        (std::string(args[0]) + " [options] file...").c_str(),
-                        "LLVM Linker", false);
-      } else {
-        error("-arch not specified and could not be inferred");
-      }
-      return false;
-    }
-  }
-
-  // Handle -macosx_version_min or -ios_version_min
-  MachOLinkingContext::OS os = MachOLinkingContext::OS::unknown;
-  uint32_t minOSVersion = 0;
-  if (llvm::opt::Arg *minOS =
-          parsedArgs.getLastArg(OPT_macosx_version_min, OPT_ios_version_min,
-                                OPT_ios_simulator_version_min)) {
-    switch (minOS->getOption().getID()) {
-    case OPT_macosx_version_min:
-      os = MachOLinkingContext::OS::macOSX;
-      if (MachOLinkingContext::parsePackedVersion(minOS->getValue(),
-                                                  minOSVersion)) {
-        error("malformed macosx_version_min value");
-        return false;
-      }
-      break;
-    case OPT_ios_version_min:
-      os = MachOLinkingContext::OS::iOS;
-      if (MachOLinkingContext::parsePackedVersion(minOS->getValue(),
-                                                  minOSVersion)) {
-        error("malformed ios_version_min value");
-        return false;
-      }
-      break;
-    case OPT_ios_simulator_version_min:
-      os = MachOLinkingContext::OS::iOS_simulator;
-      if (MachOLinkingContext::parsePackedVersion(minOS->getValue(),
-                                                  minOSVersion)) {
-        error("malformed ios_simulator_version_min value");
-        return false;
-      }
-      break;
-    }
-  } else {
-    // No min-os version on command line, check environment variables
-  }
-
-  // Handle export_dynamic
-  // FIXME: Should we warn when this applies to something other than a static
-  // executable or dylib?  Those are the only cases where this has an effect.
-  // Note, this has to come before ctx.configure() so that we get the correct
-  // value for _globalsAreDeadStripRoots.
-  bool exportDynamicSymbols = parsedArgs.hasArg(OPT_export_dynamic);
-
-  // Now that there's enough information parsed in, let the linking context
-  // set up default values.
-  ctx.configure(fileType, arch, os, minOSVersion, exportDynamicSymbols);
-
-  // Handle -e xxx
-  if (llvm::opt::Arg *entry = parsedArgs.getLastArg(OPT_entry))
-    ctx.setEntrySymbolName(entry->getValue());
-
-  // Handle -o xxx
-  if (llvm::opt::Arg *outpath = parsedArgs.getLastArg(OPT_output))
-    ctx.setOutputPath(outpath->getValue());
-  else
-    ctx.setOutputPath("a.out");
-
-  // Handle -image_base XXX and -seg1addr XXXX
-  if (llvm::opt::Arg *imageBase = parsedArgs.getLastArg(OPT_image_base)) {
-    uint64_t baseAddress;
-    if (parseNumberBase16(imageBase->getValue(), baseAddress)) {
-      error("image_base expects a hex number");
-      return false;
-    } else if (baseAddress < ctx.pageZeroSize()) {
-      error("image_base overlaps with __PAGEZERO");
-      return false;
-    } else if (baseAddress % ctx.pageSize()) {
-      error("image_base must be a multiple of page size (0x" +
-            llvm::utohexstr(ctx.pageSize()) + ")");
-      return false;
-    }
-
-    ctx.setBaseAddress(baseAddress);
-  }
-
-  // Handle -dead_strip
-  if (parsedArgs.getLastArg(OPT_dead_strip))
-    ctx.setDeadStripping(true);
-
-  bool globalWholeArchive = false;
-  // Handle -all_load
-  if (parsedArgs.getLastArg(OPT_all_load))
-    globalWholeArchive = true;
-
-  // Handle -install_name
-  if (llvm::opt::Arg *installName = parsedArgs.getLastArg(OPT_install_name))
-    ctx.setInstallName(installName->getValue());
-  else
-    ctx.setInstallName(ctx.outputPath());
-
-  // Handle -mark_dead_strippable_dylib
-  if (parsedArgs.getLastArg(OPT_mark_dead_strippable_dylib))
-    ctx.setDeadStrippableDylib(true);
-
-  // Handle -compatibility_version and -current_version
-  if (llvm::opt::Arg *vers = parsedArgs.getLastArg(OPT_compatibility_version)) {
-    if (ctx.outputMachOType() != llvm::MachO::MH_DYLIB) {
-      error("-compatibility_version can only be used with -dylib");
-      return false;
-    }
-    uint32_t parsedVers;
-    if (MachOLinkingContext::parsePackedVersion(vers->getValue(), parsedVers)) {
-      error("-compatibility_version value is malformed");
-      return false;
-    }
-    ctx.setCompatibilityVersion(parsedVers);
-  }
-
-  if (llvm::opt::Arg *vers = parsedArgs.getLastArg(OPT_current_version)) {
-    if (ctx.outputMachOType() != llvm::MachO::MH_DYLIB) {
-      error("-current_version can only be used with -dylib");
-      return false;
-    }
-    uint32_t parsedVers;
-    if (MachOLinkingContext::parsePackedVersion(vers->getValue(), parsedVers)) {
-      error("-current_version value is malformed");
-      return false;
-    }
-    ctx.setCurrentVersion(parsedVers);
-  }
-
-  // Handle -bundle_loader
-  if (llvm::opt::Arg *loader = parsedArgs.getLastArg(OPT_bundle_loader))
-    ctx.setBundleLoader(loader->getValue());
-
-  // Handle -sectalign segname sectname align
-  for (auto &alignArg : parsedArgs.filtered(OPT_sectalign)) {
-    const char* segName   = alignArg->getValue(0);
-    const char* sectName  = alignArg->getValue(1);
-    const char* alignStr  = alignArg->getValue(2);
-    if ((alignStr[0] == '0') && (alignStr[1] == 'x'))
-      alignStr += 2;
-    unsigned long long alignValue;
-    if (llvm::getAsUnsignedInteger(alignStr, 16, alignValue)) {
-      error("-sectalign alignment value '" + Twine(alignStr) +
-            "' not a valid number");
-      return false;
-    }
-    uint16_t align = 1 << llvm::countTrailingZeros(alignValue);
-    if (!llvm::isPowerOf2_64(alignValue)) {
-      std::string Msg;
-      llvm::raw_string_ostream OS(Msg);
-      OS << "alignment for '-sectalign " << segName << " " << sectName
-         << llvm::format(" 0x%llX", alignValue)
-         << "' is not a power of two, using " << llvm::format("0x%08X", align);
-      OS.flush();
-      warn(Msg);
-    }
-    ctx.addSectionAlignment(segName, sectName, align);
-  }
-
-  // Handle -mllvm
-  for (auto &llvmArg : parsedArgs.filtered(OPT_mllvm)) {
-    ctx.appendLLVMOption(llvmArg->getValue());
-  }
-
-  // Handle -print_atoms
-  if (parsedArgs.getLastArg(OPT_print_atoms))
-    ctx.setPrintAtoms();
-
-  // Handle -t (trace) option.
-  if (parsedArgs.getLastArg(OPT_t))
-    ctx.setLogInputFiles(true);
-
-  // Handle -demangle option.
-  if (parsedArgs.getLastArg(OPT_demangle))
-    ctx.setDemangleSymbols(true);
-
-  // Handle -keep_private_externs
-  if (parsedArgs.getLastArg(OPT_keep_private_externs)) {
-    ctx.setKeepPrivateExterns(true);
-    if (ctx.outputMachOType() != llvm::MachO::MH_OBJECT)
-      warn("-keep_private_externs only used in -r mode");
-  }
-
-  // Handle -dependency_info <path> used by Xcode.
-  if (llvm::opt::Arg *depInfo = parsedArgs.getLastArg(OPT_dependency_info))
-    if (std::error_code ec = ctx.createDependencyFile(depInfo->getValue()))
-      warn(ec.message() + ", processing '-dependency_info " +
-           depInfo->getValue());
-
-  // In -test_file_usage mode, we'll be given an explicit list of paths that
-  // exist. We'll also be expected to print out information about how we located
-  // libraries and so on that the user specified, but not to actually do any
-  // linking.
-  if (parsedArgs.getLastArg(OPT_test_file_usage)) {
-    ctx.setTestingFileUsage();
-
-    // With paths existing by fiat, linking is not going to end well.
-    ctx.setDoNothing(true);
-
-    // Only bother looking for an existence override if we're going to use it.
-    for (auto existingPath : parsedArgs.filtered(OPT_path_exists)) {
-      ctx.addExistingPathForDebug(existingPath->getValue());
-    }
-  }
-
-  // Register possible input file parsers.
-  if (!ctx.doNothing()) {
-    ctx.registry().addSupportMachOObjects(ctx);
-    ctx.registry().addSupportArchives(ctx.logInputFiles());
-    ctx.registry().addSupportYamlFiles();
-  }
-
-  // Now construct the set of library search directories, following ld64's
-  // baroque set of accumulated hacks. Mostly, the algorithm constructs
-  //     { syslibroots } x { libpaths }
-  //
-  // Unfortunately, there are numerous exceptions:
-  //   1. Only absolute paths get modified by syslibroot options.
-  //   2. If there is just 1 -syslibroot, system paths not found in it are
-  //      skipped.
-  //   3. If the last -syslibroot is "/", all of them are ignored entirely.
-  //   4. If { syslibroots } x path ==  {}, the original path is kept.
-  std::vector<StringRef> sysLibRoots;
-  for (auto syslibRoot : parsedArgs.filtered(OPT_syslibroot)) {
-    sysLibRoots.push_back(syslibRoot->getValue());
-  }
-  if (!sysLibRoots.empty()) {
-    // Ignore all if last -syslibroot is "/".
-    if (sysLibRoots.back() != "/")
-      ctx.setSysLibRoots(sysLibRoots);
-  }
-
-  // Paths specified with -L come first, and are not considered system paths for
-  // the case where there is precisely 1 -syslibroot.
-  for (auto libPath : parsedArgs.filtered(OPT_L)) {
-    ctx.addModifiedSearchDir(libPath->getValue());
-  }
-
-  // Process -F directories (where to look for frameworks).
-  for (auto fwPath : parsedArgs.filtered(OPT_F)) {
-    ctx.addFrameworkSearchDir(fwPath->getValue());
-  }
-
-  // -Z suppresses the standard search paths.
-  if (!parsedArgs.hasArg(OPT_Z)) {
-    ctx.addModifiedSearchDir("/usr/lib", true);
-    ctx.addModifiedSearchDir("/usr/local/lib", true);
-    ctx.addFrameworkSearchDir("/Library/Frameworks", true);
-    ctx.addFrameworkSearchDir("/System/Library/Frameworks", true);
-  }
-
-  // Now that we've constructed the final set of search paths, print out those
-  // search paths in verbose mode.
-  if (errorHandler().Verbose) {
-    message("Library search paths:");
-    for (auto path : ctx.searchDirs()) {
-      message("    " + path);
-    }
-    message("Framework search paths:");
-    for (auto path : ctx.frameworkDirs()) {
-      message("    " + path);
-    }
-  }
-
-  // Handle -exported_symbols_list <file>
-  for (auto expFile : parsedArgs.filtered(OPT_exported_symbols_list)) {
-    if (ctx.exportMode() == MachOLinkingContext::ExportMode::blackList) {
-      error("-exported_symbols_list cannot be combined with "
-            "-unexported_symbol[s_list]");
-      return false;
-    }
-    ctx.setExportMode(MachOLinkingContext::ExportMode::whiteList);
-    if (std::error_code ec = parseExportsList(expFile->getValue(), ctx)) {
-      error(ec.message() + ", processing '-exported_symbols_list " +
-            expFile->getValue());
-      return false;
-    }
-  }
-
-  // Handle -exported_symbol <symbol>
-  for (auto symbol : parsedArgs.filtered(OPT_exported_symbol)) {
-    if (ctx.exportMode() == MachOLinkingContext::ExportMode::blackList) {
-      error("-exported_symbol cannot be combined with "
-            "-unexported_symbol[s_list]");
-      return false;
-    }
-    ctx.setExportMode(MachOLinkingContext::ExportMode::whiteList);
-    ctx.addExportSymbol(symbol->getValue());
-  }
-
-  // Handle -unexported_symbols_list <file>
-  for (auto expFile : parsedArgs.filtered(OPT_unexported_symbols_list)) {
-    if (ctx.exportMode() == MachOLinkingContext::ExportMode::whiteList) {
-      error("-unexported_symbols_list cannot be combined with "
-            "-exported_symbol[s_list]");
-      return false;
-    }
-    ctx.setExportMode(MachOLinkingContext::ExportMode::blackList);
-    if (std::error_code ec = parseExportsList(expFile->getValue(), ctx)) {
-      error(ec.message() + ", processing '-unexported_symbols_list " +
-            expFile->getValue());
-      return false;
-    }
-  }
-
-  // Handle -unexported_symbol <symbol>
-  for (auto symbol : parsedArgs.filtered(OPT_unexported_symbol)) {
-    if (ctx.exportMode() == MachOLinkingContext::ExportMode::whiteList) {
-      error("-unexported_symbol cannot be combined with "
-            "-exported_symbol[s_list]");
-      return false;
-    }
-    ctx.setExportMode(MachOLinkingContext::ExportMode::blackList);
-    ctx.addExportSymbol(symbol->getValue());
-  }
-
-  // Handle obosolete -multi_module and -single_module
-  if (llvm::opt::Arg *mod =
-          parsedArgs.getLastArg(OPT_multi_module, OPT_single_module)) {
-    if (mod->getOption().getID() == OPT_multi_module)
-      warn("-multi_module is obsolete and being ignored");
-    else if (ctx.outputMachOType() != llvm::MachO::MH_DYLIB)
-      warn("-single_module being ignored. It is only for use when producing a "
-           "dylib");
-  }
-
-  // Handle obsolete ObjC options: -objc_gc_compaction, -objc_gc, -objc_gc_only
-  if (parsedArgs.getLastArg(OPT_objc_gc_compaction)) {
-    error("-objc_gc_compaction is not supported");
-    return false;
-  }
-
-  if (parsedArgs.getLastArg(OPT_objc_gc)) {
-    error("-objc_gc is not supported");
-    return false;
-  }
-
-  if (parsedArgs.getLastArg(OPT_objc_gc_only)) {
-    error("-objc_gc_only is not supported");
-    return false;
-  }
-
-  // Handle -pie or -no_pie
-  if (llvm::opt::Arg *pie = parsedArgs.getLastArg(OPT_pie, OPT_no_pie)) {
-    switch (ctx.outputMachOType()) {
-    case llvm::MachO::MH_EXECUTE:
-      switch (ctx.os()) {
-      case MachOLinkingContext::OS::macOSX:
-        if ((minOSVersion < 0x000A0500) &&
-            (pie->getOption().getID() == OPT_pie)) {
-          error("-pie can only be used when targeting Mac OS X 10.5 or later");
-          return false;
-        }
-        break;
-      case MachOLinkingContext::OS::iOS:
-        if ((minOSVersion < 0x00040200) &&
-            (pie->getOption().getID() == OPT_pie)) {
-          error("-pie can only be used when targeting iOS 4.2 or later");
-          return false;
-        }
-        break;
-      case MachOLinkingContext::OS::iOS_simulator:
-        if (pie->getOption().getID() == OPT_no_pie) {
-          error("iOS simulator programs must be built PIE");
-          return false;
-        }
-        break;
-      case MachOLinkingContext::OS::unknown:
-        break;
-      }
-      ctx.setPIE(pie->getOption().getID() == OPT_pie);
-      break;
-    case llvm::MachO::MH_PRELOAD:
-      break;
-    case llvm::MachO::MH_DYLIB:
-    case llvm::MachO::MH_BUNDLE:
-      warn(pie->getSpelling() +
-           " being ignored. It is only used when linking main executables");
-      break;
-    default:
-      error(pie->getSpelling() +
-            " can only used when linking main executables");
-      return false;
-    }
-  }
-
-  // Handle -version_load_command or -no_version_load_command
-  {
-    bool flagOn = false;
-    bool flagOff = false;
-    if (auto *arg = parsedArgs.getLastArg(OPT_version_load_command,
-                                          OPT_no_version_load_command)) {
-      flagOn = arg->getOption().getID() == OPT_version_load_command;
-      flagOff = arg->getOption().getID() == OPT_no_version_load_command;
-    }
-
-    // default to adding version load command for dynamic code,
-    // static code must opt-in
-    switch (ctx.outputMachOType()) {
-      case llvm::MachO::MH_OBJECT:
-        ctx.setGenerateVersionLoadCommand(false);
-        break;
-      case llvm::MachO::MH_EXECUTE:
-        // dynamic executables default to generating a version load command,
-        // while static exectuables only generate it if required.
-        if (isStaticExecutable) {
-          if (flagOn)
-            ctx.setGenerateVersionLoadCommand(true);
-        } else {
-          if (!flagOff)
-            ctx.setGenerateVersionLoadCommand(true);
-        }
-        break;
-      case llvm::MachO::MH_PRELOAD:
-      case llvm::MachO::MH_KEXT_BUNDLE:
-        if (flagOn)
-          ctx.setGenerateVersionLoadCommand(true);
-        break;
-      case llvm::MachO::MH_DYLINKER:
-      case llvm::MachO::MH_DYLIB:
-      case llvm::MachO::MH_BUNDLE:
-        if (!flagOff)
-          ctx.setGenerateVersionLoadCommand(true);
-        break;
-      case llvm::MachO::MH_FVMLIB:
-      case llvm::MachO::MH_DYLDLINK:
-      case llvm::MachO::MH_DYLIB_STUB:
-      case llvm::MachO::MH_DSYM:
-        // We don't generate load commands for these file types, even if
-        // forced on.
-        break;
-    }
-  }
-
-  // Handle -function_starts or -no_function_starts
-  {
-    bool flagOn = false;
-    bool flagOff = false;
-    if (auto *arg = parsedArgs.getLastArg(OPT_function_starts,
-                                          OPT_no_function_starts)) {
-      flagOn = arg->getOption().getID() == OPT_function_starts;
-      flagOff = arg->getOption().getID() == OPT_no_function_starts;
-    }
-
-    // default to adding functions start for dynamic code, static code must
-    // opt-in
-    switch (ctx.outputMachOType()) {
-      case llvm::MachO::MH_OBJECT:
-        ctx.setGenerateFunctionStartsLoadCommand(false);
-        break;
-      case llvm::MachO::MH_EXECUTE:
-        // dynamic executables default to generating a version load command,
-        // while static exectuables only generate it if required.
-        if (isStaticExecutable) {
-          if (flagOn)
-            ctx.setGenerateFunctionStartsLoadCommand(true);
-        } else {
-          if (!flagOff)
-            ctx.setGenerateFunctionStartsLoadCommand(true);
-        }
-        break;
-      case llvm::MachO::MH_PRELOAD:
-      case llvm::MachO::MH_KEXT_BUNDLE:
-        if (flagOn)
-          ctx.setGenerateFunctionStartsLoadCommand(true);
-        break;
-      case llvm::MachO::MH_DYLINKER:
-      case llvm::MachO::MH_DYLIB:
-      case llvm::MachO::MH_BUNDLE:
-        if (!flagOff)
-          ctx.setGenerateFunctionStartsLoadCommand(true);
-        break;
-      case llvm::MachO::MH_FVMLIB:
-      case llvm::MachO::MH_DYLDLINK:
-      case llvm::MachO::MH_DYLIB_STUB:
-      case llvm::MachO::MH_DSYM:
-        // We don't generate load commands for these file types, even if
-        // forced on.
-        break;
-    }
-  }
-
-  // Handle -data_in_code_info or -no_data_in_code_info
-  {
-    bool flagOn = false;
-    bool flagOff = false;
-    if (auto *arg = parsedArgs.getLastArg(OPT_data_in_code_info,
-                                          OPT_no_data_in_code_info)) {
-      flagOn = arg->getOption().getID() == OPT_data_in_code_info;
-      flagOff = arg->getOption().getID() == OPT_no_data_in_code_info;
-    }
-
-    // default to adding data in code for dynamic code, static code must
-    // opt-in
-    switch (ctx.outputMachOType()) {
-      case llvm::MachO::MH_OBJECT:
-        if (!flagOff)
-          ctx.setGenerateDataInCodeLoadCommand(true);
-        break;
-      case llvm::MachO::MH_EXECUTE:
-        // dynamic executables default to generating a version load command,
-        // while static exectuables only generate it if required.
-        if (isStaticExecutable) {
-          if (flagOn)
-            ctx.setGenerateDataInCodeLoadCommand(true);
-        } else {
-          if (!flagOff)
-            ctx.setGenerateDataInCodeLoadCommand(true);
-        }
-        break;
-      case llvm::MachO::MH_PRELOAD:
-      case llvm::MachO::MH_KEXT_BUNDLE:
-        if (flagOn)
-          ctx.setGenerateDataInCodeLoadCommand(true);
-        break;
-      case llvm::MachO::MH_DYLINKER:
-      case llvm::MachO::MH_DYLIB:
-      case llvm::MachO::MH_BUNDLE:
-        if (!flagOff)
-          ctx.setGenerateDataInCodeLoadCommand(true);
-        break;
-      case llvm::MachO::MH_FVMLIB:
-      case llvm::MachO::MH_DYLDLINK:
-      case llvm::MachO::MH_DYLIB_STUB:
-      case llvm::MachO::MH_DSYM:
-        // We don't generate load commands for these file types, even if
-        // forced on.
-        break;
-    }
-  }
-
-  // Handle sdk_version
-  if (llvm::opt::Arg *arg = parsedArgs.getLastArg(OPT_sdk_version)) {
-    uint32_t sdkVersion = 0;
-    if (MachOLinkingContext::parsePackedVersion(arg->getValue(),
-                                                sdkVersion)) {
-      error("malformed sdkVersion value");
-      return false;
-    }
-    ctx.setSdkVersion(sdkVersion);
-  } else if (ctx.generateVersionLoadCommand()) {
-    // If we don't have an sdk version, but were going to emit a load command
-    // with min_version, then we need to give an warning as we have no sdk
-    // version to put in that command.
-    // FIXME: We need to decide whether to make this an error.
-    warn("-sdk_version is required when emitting min version load command.  "
-         "Setting sdk version to match provided min version");
-    ctx.setSdkVersion(ctx.osMinVersion());
-  }
-
-  // Handle source_version
-  if (llvm::opt::Arg *arg = parsedArgs.getLastArg(OPT_source_version)) {
-    uint64_t version = 0;
-    if (MachOLinkingContext::parsePackedVersion(arg->getValue(),
-                                                version)) {
-      error("malformed source_version value");
-      return false;
-    }
-    ctx.setSourceVersion(version);
-  }
-
-  // Handle stack_size
-  if (llvm::opt::Arg *stackSize = parsedArgs.getLastArg(OPT_stack_size)) {
-    uint64_t stackSizeVal;
-    if (parseNumberBase16(stackSize->getValue(), stackSizeVal)) {
-      error("stack_size expects a hex number");
-      return false;
-    }
-    if ((stackSizeVal % ctx.pageSize()) != 0) {
-      error("stack_size must be a multiple of page size (0x" +
-            llvm::utohexstr(ctx.pageSize()) + ")");
-      return false;
-    }
-
-    ctx.setStackSize(stackSizeVal);
-  }
-
-  // Handle debug info handling options: -S
-  if (parsedArgs.hasArg(OPT_S))
-    ctx.setDebugInfoMode(MachOLinkingContext::DebugInfoMode::noDebugMap);
-
-  // Handle -order_file <file>
-  for (auto orderFile : parsedArgs.filtered(OPT_order_file)) {
-    if (std::error_code ec = parseOrderFile(orderFile->getValue(), ctx)) {
-      error(ec.message() + ", processing '-order_file " + orderFile->getValue()
-            + "'");
-      return false;
-    }
-  }
-
-  // Handle -flat_namespace.
-  if (llvm::opt::Arg *ns =
-          parsedArgs.getLastArg(OPT_flat_namespace, OPT_twolevel_namespace)) {
-    if (ns->getOption().getID() == OPT_flat_namespace)
-      ctx.setUseFlatNamespace(true);
-  }
-
-  // Handle -undefined
-  if (llvm::opt::Arg *undef = parsedArgs.getLastArg(OPT_undefined)) {
-    MachOLinkingContext::UndefinedMode UndefMode;
-    if (StringRef(undef->getValue()).equals("error"))
-      UndefMode = MachOLinkingContext::UndefinedMode::error;
-    else if (StringRef(undef->getValue()).equals("warning"))
-      UndefMode = MachOLinkingContext::UndefinedMode::warning;
-    else if (StringRef(undef->getValue()).equals("suppress"))
-      UndefMode = MachOLinkingContext::UndefinedMode::suppress;
-    else if (StringRef(undef->getValue()).equals("dynamic_lookup"))
-      UndefMode = MachOLinkingContext::UndefinedMode::dynamicLookup;
-    else {
-      error("invalid option to -undefined [ warning | error | suppress | "
-            "dynamic_lookup ]");
-      return false;
-    }
-
-    if (ctx.useFlatNamespace()) {
-      // If we're using -flat_namespace then 'warning', 'suppress' and
-      // 'dynamic_lookup' are all equivalent, so map them to 'suppress'.
-      if (UndefMode != MachOLinkingContext::UndefinedMode::error)
-        UndefMode = MachOLinkingContext::UndefinedMode::suppress;
-    } else {
-      // If we're using -twolevel_namespace then 'warning' and 'suppress' are
-      // illegal. Emit a diagnostic if they've been (mis)used.
-      if (UndefMode == MachOLinkingContext::UndefinedMode::warning ||
-          UndefMode == MachOLinkingContext::UndefinedMode::suppress) {
-        error("can't use -undefined warning or suppress with "
-              "-twolevel_namespace");
-        return false;
-      }
-    }
-
-    ctx.setUndefinedMode(UndefMode);
-  }
-
-  // Handle -no_objc_category_merging.
-  if (parsedArgs.getLastArg(OPT_no_objc_category_merging))
-    ctx.setMergeObjCCategories(false);
-
-  // Handle -rpath <path>
-  if (parsedArgs.hasArg(OPT_rpath)) {
-    switch (ctx.outputMachOType()) {
-      case llvm::MachO::MH_EXECUTE:
-      case llvm::MachO::MH_DYLIB:
-      case llvm::MachO::MH_BUNDLE:
-        if (!ctx.minOS("10.5", "2.0")) {
-          if (ctx.os() == MachOLinkingContext::OS::macOSX)
-            error("-rpath can only be used when targeting OS X 10.5 or later");
-          else
-            error("-rpath can only be used when targeting iOS 2.0 or later");
-          return false;
-        }
-        break;
-      default:
-        error("-rpath can only be used when creating a dynamic final linked "
-              "image");
-        return false;
-    }
-
-    for (auto rPath : parsedArgs.filtered(OPT_rpath)) {
-      ctx.addRpath(rPath->getValue());
-    }
-  }
-
-  // Parse the LLVM options before we process files in case the file handling
-  // makes use of things like LLVM_DEBUG().
-  parseLLVMOptions(ctx);
-
-  // Handle input files and sectcreate.
-  for (auto &arg : parsedArgs) {
-    bool upward;
-    llvm::Optional<StringRef> resolvedPath;
-    switch (arg->getOption().getID()) {
-    default:
-      continue;
-    case OPT_INPUT:
-      addFile(arg->getValue(), ctx, globalWholeArchive, false);
-      break;
-    case OPT_upward_library:
-      addFile(arg->getValue(), ctx, false, true);
-      break;
-    case OPT_force_load:
-      addFile(arg->getValue(), ctx, true, false);
-      break;
-    case OPT_l:
-    case OPT_upward_l:
-      upward = (arg->getOption().getID() == OPT_upward_l);
-      resolvedPath = ctx.searchLibrary(arg->getValue());
-      if (!resolvedPath) {
-        error("Unable to find library for " + arg->getSpelling() +
-              arg->getValue());
-        return false;
-      } else if (ctx.testingFileUsage()) {
-        message(Twine("Found ") + (upward ? "upward " : " ") + "library " +
-                canonicalizePath(resolvedPath.getValue()));
-      }
-      addFile(resolvedPath.getValue(), ctx, globalWholeArchive, upward);
-      break;
-    case OPT_framework:
-    case OPT_upward_framework:
-      upward = (arg->getOption().getID() == OPT_upward_framework);
-      resolvedPath = ctx.findPathForFramework(arg->getValue());
-      if (!resolvedPath) {
-        error("Unable to find framework for " + arg->getSpelling() + " " +
-              arg->getValue());
-        return false;
-      } else if (ctx.testingFileUsage()) {
-        message(Twine("Found ") + (upward ? "upward " : " ") + "framework " +
-                canonicalizePath(resolvedPath.getValue()));
-      }
-      addFile(resolvedPath.getValue(), ctx, globalWholeArchive, upward);
-      break;
-    case OPT_filelist:
-      if (auto ec = loadFileList(arg->getValue(), ctx, globalWholeArchive)) {
-        handleAllErrors(std::move(ec), [&](const llvm::ErrorInfoBase &EI) {
-          error(EI.message() + ", processing '-filelist " + arg->getValue());
-        });
-        return false;
-      }
-      break;
-    case OPT_sectcreate: {
-        const char* seg  = arg->getValue(0);
-        const char* sect = arg->getValue(1);
-        const char* fileName = arg->getValue(2);
-
-        ErrorOr<std::unique_ptr<MemoryBuffer>> contentOrErr =
-          MemoryBuffer::getFile(fileName);
-
-        if (!contentOrErr) {
-          error("can't open -sectcreate file " + Twine(fileName));
-          return false;
-        }
-
-        ctx.addSectCreateSection(seg, sect, std::move(*contentOrErr));
-      }
-      break;
-    }
-  }
-
-  if (ctx.getNodes().empty()) {
-    error("No input files");
-    return false;
-  }
-
-  // Validate the combination of options used.
-  return ctx.validate();
-}
-
-static void createFiles(MachOLinkingContext &ctx, bool Implicit) {
-  std::vector<std::unique_ptr<File>> Files;
-  if (Implicit)
-    ctx.createImplicitFiles(Files);
-  else
-    ctx.createInternalFiles(Files);
-  for (auto i = Files.rbegin(), e = Files.rend(); i != e; ++i) {
-    auto &members = ctx.getNodes();
-    members.insert(members.begin(), llvm::make_unique<FileNode>(std::move(*i)));
-  }
-}
-
-/// This is where the link is actually performed.
-bool link(llvm::ArrayRef<const char *> args, bool CanExitEarly,
-          raw_ostream &Error) {
-  errorHandler().LogName = args::getFilenameWithoutExe(args[0]);
-  errorHandler().ErrorLimitExceededMsg =
-      "too many errors emitted, stopping now (use "
-      "'-error-limit 0' to see all errors)";
-  errorHandler().ErrorOS = &Error;
-  errorHandler().ExitEarly = CanExitEarly;
-  errorHandler().ColorDiagnostics = Error.has_colors();
-
-  MachOLinkingContext ctx;
-  if (!parse(args, ctx))
-    return false;
-  if (ctx.doNothing())
-    return true;
-  if (ctx.getNodes().empty())
-    return false;
-
-  for (std::unique_ptr<Node> &ie : ctx.getNodes())
-    if (FileNode *node = dyn_cast<FileNode>(ie.get()))
-      node->getFile()->parse();
-
-  createFiles(ctx, false /* Implicit */);
-
-  // Give target a chance to add files
-  createFiles(ctx, true /* Implicit */);
-
-  // Give target a chance to postprocess input files.
-  // Mach-O uses this chance to move all object files before library files.
-  ctx.finalizeInputFiles();
-
-  // Do core linking.
-  ScopedTask resolveTask(getDefaultDomain(), "Resolve");
-  Resolver resolver(ctx);
-  if (!resolver.resolve())
-    return false;
-  SimpleFile *merged = nullptr;
-  {
-    std::unique_ptr<SimpleFile> mergedFile = resolver.resultFile();
-    merged = mergedFile.get();
-    auto &members = ctx.getNodes();
-    members.insert(members.begin(),
-                   llvm::make_unique<FileNode>(std::move(mergedFile)));
-  }
-  resolveTask.end();
-
-  // Run passes on linked atoms.
-  ScopedTask passTask(getDefaultDomain(), "Passes");
-  PassManager pm;
-  ctx.addPasses(pm);
-  if (auto ec = pm.runOnFile(*merged)) {
-    // FIXME: This should be passed to logAllUnhandledErrors but it needs
-    // to be passed a Twine instead of a string.
-    *errorHandler().ErrorOS << "Failed to run passes on file '"
-                            << ctx.outputPath() << "': ";
-    logAllUnhandledErrors(std::move(ec), *errorHandler().ErrorOS,
-                          std::string());
-    return false;
-  }
-
-  passTask.end();
-
-  // Give linked atoms to Writer to generate output file.
-  ScopedTask writeTask(getDefaultDomain(), "Write");
-  if (auto ec = ctx.writeFile(*merged)) {
-    // FIXME: This should be passed to logAllUnhandledErrors but it needs
-    // to be passed a Twine instead of a string.
-    *errorHandler().ErrorOS << "Failed to write file '" << ctx.outputPath()
-                            << "': ";
-    logAllUnhandledErrors(std::move(ec), *errorHandler().ErrorOS,
-                          std::string());
-    return false;
-  }
-
-  // Call exit() if we can to avoid calling destructors.
-  if (CanExitEarly)
-    exitLld(errorCount() ? 1 : 0);
-
-
-  return true;
-}
-
-} // end namespace mach_o
-} // end namespace lld