Merge branch 'users/chapuni/cov/single/nextcount-base' into users/chapuni/cov/single/nextcountusers/chapuni/cov/single/nextcount

1 files changed, 152 insertions, 154 deletions

diff --git a/lld/wasm/Driver.cpp b/lld/wasm/Driver.cpp
index 0247195..c3a74dd 100644
--- a/lld/wasm/Driver.cpp
+++ b/lld/wasm/Driver.cpp
@@ -44,17 +44,16 @@ using namespace llvm::sys;
 using namespace llvm::wasm;
 
 namespace lld::wasm {
-ConfigWrapper config;
 Ctx ctx;
 
 void errorOrWarn(const llvm::Twine &msg) {
-  if (config->noinhibitExec)
+  if (ctx.arg.noinhibitExec)
     warn(msg);
   else
     error(msg);
 }
 
-Ctx::Ctx() : arg(config.c) {}
+Ctx::Ctx() {}
 
 void Ctx::reset() {
   arg.~Config();
@@ -268,7 +267,7 @@ opt::InputArgList WasmOptTable::parse(ArrayRef<const char *> argv) {
 static void readImportFile(StringRef filename) {
   if (std::optional<MemoryBufferRef> buf = readFile(filename))
     for (StringRef sym : args::getLines(*buf))
-      config->allowUndefinedSymbols.insert(sym);
+      ctx.arg.allowUndefinedSymbols.insert(sym);
 }
 
 // Returns slices of MB by parsing MB as an archive file.
@@ -345,7 +344,7 @@ void LinkerDriver::addFile(StringRef path) {
   case file_magic::bitcode:
   case file_magic::wasm_object: {
     auto obj = createObjectFile(mbref, "", 0, inLib);
-    if (config->isStatic && isa<SharedFile>(obj)) {
+    if (ctx.arg.isStatic && isa<SharedFile>(obj)) {
       error("attempted static link of dynamic object " + path);
       break;
     }
@@ -364,7 +363,7 @@ void LinkerDriver::addFile(StringRef path) {
 }
 
 static std::optional<std::string> findFromSearchPaths(StringRef path) {
-  for (StringRef dir : config->searchPaths)
+  for (StringRef dir : ctx.arg.searchPaths)
     if (std::optional<std::string> s = findFile(dir, path))
       return s;
   return std::nullopt;
@@ -373,8 +372,8 @@ static std::optional<std::string> findFromSearchPaths(StringRef path) {
 // This is for -l<basename>. We'll look for lib<basename>.a from
 // search paths.
 static std::optional<std::string> searchLibraryBaseName(StringRef name) {
-  for (StringRef dir : config->searchPaths) {
-    if (!config->isStatic)
+  for (StringRef dir : ctx.arg.searchPaths) {
+    if (!ctx.arg.isStatic)
       if (std::optional<std::string> s = findFile(dir, "lib" + name + ".so"))
         return s;
     if (std::optional<std::string> s = findFile(dir, "lib" + name + ".a"))
@@ -408,10 +407,10 @@ void LinkerDriver::createFiles(opt::InputArgList &args) {
       addFile(arg->getValue());
       break;
     case OPT_Bstatic:
-      config->isStatic = true;
+      ctx.arg.isStatic = true;
       break;
     case OPT_Bdynamic:
-      config->isStatic = false;
+      ctx.arg.isStatic = false;
       break;
     case OPT_whole_archive:
       inWholeArchive = true;
@@ -527,99 +526,98 @@ getBuildId(opt::InputArgList &args) {
 
 // Initializes Config members by the command line options.
 static void readConfigs(opt::InputArgList &args) {
-  config->allowMultipleDefinition =
+  ctx.arg.allowMultipleDefinition =
       hasZOption(args, "muldefs") ||
       args.hasFlag(OPT_allow_multiple_definition,
                    OPT_no_allow_multiple_definition, false);
-  config->bsymbolic = args.hasArg(OPT_Bsymbolic);
-  config->checkFeatures =
+  ctx.arg.bsymbolic = args.hasArg(OPT_Bsymbolic);
+  ctx.arg.checkFeatures =
       args.hasFlag(OPT_check_features, OPT_no_check_features, true);
-  config->compressRelocations = args.hasArg(OPT_compress_relocations);
-  config->demangle = args.hasFlag(OPT_demangle, OPT_no_demangle, true);
-  config->disableVerify = args.hasArg(OPT_disable_verify);
-  config->emitRelocs = args.hasArg(OPT_emit_relocs);
-  config->experimentalPic = args.hasArg(OPT_experimental_pic);
-  config->entry = getEntry(args);
-  config->exportAll = args.hasArg(OPT_export_all);
-  config->exportTable = args.hasArg(OPT_export_table);
-  config->growableTable = args.hasArg(OPT_growable_table);
-  config->noinhibitExec = args.hasArg(OPT_noinhibit_exec);
+  ctx.arg.compressRelocations = args.hasArg(OPT_compress_relocations);
+  ctx.arg.demangle = args.hasFlag(OPT_demangle, OPT_no_demangle, true);
+  ctx.arg.disableVerify = args.hasArg(OPT_disable_verify);
+  ctx.arg.emitRelocs = args.hasArg(OPT_emit_relocs);
+  ctx.arg.experimentalPic = args.hasArg(OPT_experimental_pic);
+  ctx.arg.entry = getEntry(args);
+  ctx.arg.exportAll = args.hasArg(OPT_export_all);
+  ctx.arg.exportTable = args.hasArg(OPT_export_table);
+  ctx.arg.growableTable = args.hasArg(OPT_growable_table);
+  ctx.arg.noinhibitExec = args.hasArg(OPT_noinhibit_exec);
 
   if (args.hasArg(OPT_import_memory_with_name)) {
-    config->memoryImport =
+    ctx.arg.memoryImport =
         args.getLastArgValue(OPT_import_memory_with_name).split(",");
   } else if (args.hasArg(OPT_import_memory)) {
-    config->memoryImport =
+    ctx.arg.memoryImport =
         std::pair<llvm::StringRef, llvm::StringRef>(defaultModule, memoryName);
   } else {
-    config->memoryImport =
+    ctx.arg.memoryImport =
         std::optional<std::pair<llvm::StringRef, llvm::StringRef>>();
   }
 
   if (args.hasArg(OPT_export_memory_with_name)) {
-    config->memoryExport =
-        args.getLastArgValue(OPT_export_memory_with_name);
+    ctx.arg.memoryExport = args.getLastArgValue(OPT_export_memory_with_name);
   } else if (args.hasArg(OPT_export_memory)) {
-    config->memoryExport = memoryName;
+    ctx.arg.memoryExport = memoryName;
   } else {
-    config->memoryExport = std::optional<llvm::StringRef>();
+    ctx.arg.memoryExport = std::optional<llvm::StringRef>();
   }
 
-  config->sharedMemory = args.hasArg(OPT_shared_memory);
-  config->soName = args.getLastArgValue(OPT_soname);
-  config->importTable = args.hasArg(OPT_import_table);
-  config->importUndefined = args.hasArg(OPT_import_undefined);
-  config->ltoo = args::getInteger(args, OPT_lto_O, 2);
-  if (config->ltoo > 3)
-    error("invalid optimization level for LTO: " + Twine(config->ltoo));
+  ctx.arg.sharedMemory = args.hasArg(OPT_shared_memory);
+  ctx.arg.soName = args.getLastArgValue(OPT_soname);
+  ctx.arg.importTable = args.hasArg(OPT_import_table);
+  ctx.arg.importUndefined = args.hasArg(OPT_import_undefined);
+  ctx.arg.ltoo = args::getInteger(args, OPT_lto_O, 2);
+  if (ctx.arg.ltoo > 3)
+    error("invalid optimization level for LTO: " + Twine(ctx.arg.ltoo));
   unsigned ltoCgo =
-      args::getInteger(args, OPT_lto_CGO, args::getCGOptLevel(config->ltoo));
+      args::getInteger(args, OPT_lto_CGO, args::getCGOptLevel(ctx.arg.ltoo));
   if (auto level = CodeGenOpt::getLevel(ltoCgo))
-    config->ltoCgo = *level;
+    ctx.arg.ltoCgo = *level;
   else
     error("invalid codegen optimization level for LTO: " + Twine(ltoCgo));
-  config->ltoPartitions = args::getInteger(args, OPT_lto_partitions, 1);
-  config->ltoObjPath = args.getLastArgValue(OPT_lto_obj_path_eq);
-  config->ltoDebugPassManager = args.hasArg(OPT_lto_debug_pass_manager);
-  config->mapFile = args.getLastArgValue(OPT_Map);
-  config->optimize = args::getInteger(args, OPT_O, 1);
-  config->outputFile = args.getLastArgValue(OPT_o);
-  config->relocatable = args.hasArg(OPT_relocatable);
-  config->gcSections =
-      args.hasFlag(OPT_gc_sections, OPT_no_gc_sections, !config->relocatable);
+  ctx.arg.ltoPartitions = args::getInteger(args, OPT_lto_partitions, 1);
+  ctx.arg.ltoObjPath = args.getLastArgValue(OPT_lto_obj_path_eq);
+  ctx.arg.ltoDebugPassManager = args.hasArg(OPT_lto_debug_pass_manager);
+  ctx.arg.mapFile = args.getLastArgValue(OPT_Map);
+  ctx.arg.optimize = args::getInteger(args, OPT_O, 1);
+  ctx.arg.outputFile = args.getLastArgValue(OPT_o);
+  ctx.arg.relocatable = args.hasArg(OPT_relocatable);
+  ctx.arg.gcSections =
+      args.hasFlag(OPT_gc_sections, OPT_no_gc_sections, !ctx.arg.relocatable);
   for (auto *arg : args.filtered(OPT_keep_section))
-    config->keepSections.insert(arg->getValue());
-  config->mergeDataSegments =
+    ctx.arg.keepSections.insert(arg->getValue());
+  ctx.arg.mergeDataSegments =
       args.hasFlag(OPT_merge_data_segments, OPT_no_merge_data_segments,
-                   !config->relocatable);
-  config->pie = args.hasFlag(OPT_pie, OPT_no_pie, false);
-  config->printGcSections =
+                   !ctx.arg.relocatable);
+  ctx.arg.pie = args.hasFlag(OPT_pie, OPT_no_pie, false);
+  ctx.arg.printGcSections =
       args.hasFlag(OPT_print_gc_sections, OPT_no_print_gc_sections, false);
-  config->saveTemps = args.hasArg(OPT_save_temps);
-  config->searchPaths = args::getStrings(args, OPT_library_path);
-  config->shared = args.hasArg(OPT_shared);
-  config->shlibSigCheck = !args.hasArg(OPT_no_shlib_sigcheck);
-  config->stripAll = args.hasArg(OPT_strip_all);
-  config->stripDebug = args.hasArg(OPT_strip_debug);
-  config->stackFirst = args.hasArg(OPT_stack_first);
-  config->trace = args.hasArg(OPT_trace);
-  config->thinLTOCacheDir = args.getLastArgValue(OPT_thinlto_cache_dir);
-  config->thinLTOCachePolicy = CHECK(
+  ctx.arg.saveTemps = args.hasArg(OPT_save_temps);
+  ctx.arg.searchPaths = args::getStrings(args, OPT_library_path);
+  ctx.arg.shared = args.hasArg(OPT_shared);
+  ctx.arg.shlibSigCheck = !args.hasArg(OPT_no_shlib_sigcheck);
+  ctx.arg.stripAll = args.hasArg(OPT_strip_all);
+  ctx.arg.stripDebug = args.hasArg(OPT_strip_debug);
+  ctx.arg.stackFirst = args.hasArg(OPT_stack_first);
+  ctx.arg.trace = args.hasArg(OPT_trace);
+  ctx.arg.thinLTOCacheDir = args.getLastArgValue(OPT_thinlto_cache_dir);
+  ctx.arg.thinLTOCachePolicy = CHECK(
       parseCachePruningPolicy(args.getLastArgValue(OPT_thinlto_cache_policy)),
       "--thinlto-cache-policy: invalid cache policy");
-  config->thinLTOEmitImportsFiles = args.hasArg(OPT_thinlto_emit_imports_files);
-  config->thinLTOEmitIndexFiles = args.hasArg(OPT_thinlto_emit_index_files) ||
+  ctx.arg.thinLTOEmitImportsFiles = args.hasArg(OPT_thinlto_emit_imports_files);
+  ctx.arg.thinLTOEmitIndexFiles = args.hasArg(OPT_thinlto_emit_index_files) ||
                                   args.hasArg(OPT_thinlto_index_only) ||
                                   args.hasArg(OPT_thinlto_index_only_eq);
-  config->thinLTOIndexOnly = args.hasArg(OPT_thinlto_index_only) ||
+  ctx.arg.thinLTOIndexOnly = args.hasArg(OPT_thinlto_index_only) ||
                              args.hasArg(OPT_thinlto_index_only_eq);
-  config->thinLTOIndexOnlyArg = args.getLastArgValue(OPT_thinlto_index_only_eq);
-  config->thinLTOObjectSuffixReplace =
+  ctx.arg.thinLTOIndexOnlyArg = args.getLastArgValue(OPT_thinlto_index_only_eq);
+  ctx.arg.thinLTOObjectSuffixReplace =
       getOldNewOptions(args, OPT_thinlto_object_suffix_replace_eq);
-  std::tie(config->thinLTOPrefixReplaceOld, config->thinLTOPrefixReplaceNew,
-           config->thinLTOPrefixReplaceNativeObject) =
+  std::tie(ctx.arg.thinLTOPrefixReplaceOld, ctx.arg.thinLTOPrefixReplaceNew,
+           ctx.arg.thinLTOPrefixReplaceNativeObject) =
       getOldNewOptionsExtra(args, OPT_thinlto_prefix_replace_eq);
-  if (config->thinLTOEmitIndexFiles && !config->thinLTOIndexOnly) {
+  if (ctx.arg.thinLTOEmitIndexFiles && !ctx.arg.thinLTOIndexOnly) {
     if (args.hasArg(OPT_thinlto_object_suffix_replace_eq))
       error("--thinlto-object-suffix-replace is not supported with "
             "--thinlto-emit-index-files");
@@ -627,45 +625,45 @@ static void readConfigs(opt::InputArgList &args) {
       error("--thinlto-prefix-replace is not supported with "
             "--thinlto-emit-index-files");
   }
-  if (!config->thinLTOPrefixReplaceNativeObject.empty() &&
-      config->thinLTOIndexOnlyArg.empty()) {
+  if (!ctx.arg.thinLTOPrefixReplaceNativeObject.empty() &&
+      ctx.arg.thinLTOIndexOnlyArg.empty()) {
     error("--thinlto-prefix-replace=old_dir;new_dir;obj_dir must be used with "
           "--thinlto-index-only=");
   }
-  config->unresolvedSymbols = getUnresolvedSymbolPolicy(args);
-  config->whyExtract = args.getLastArgValue(OPT_why_extract);
+  ctx.arg.unresolvedSymbols = getUnresolvedSymbolPolicy(args);
+  ctx.arg.whyExtract = args.getLastArgValue(OPT_why_extract);
   errorHandler().verbose = args.hasArg(OPT_verbose);
   LLVM_DEBUG(errorHandler().verbose = true);
 
-  config->tableBase = args::getInteger(args, OPT_table_base, 0);
-  config->globalBase = args::getInteger(args, OPT_global_base, 0);
-  config->initialHeap = args::getInteger(args, OPT_initial_heap, 0);
-  config->initialMemory = args::getInteger(args, OPT_initial_memory, 0);
-  config->maxMemory = args::getInteger(args, OPT_max_memory, 0);
-  config->noGrowableMemory = args.hasArg(OPT_no_growable_memory);
-  config->zStackSize =
+  ctx.arg.tableBase = args::getInteger(args, OPT_table_base, 0);
+  ctx.arg.globalBase = args::getInteger(args, OPT_global_base, 0);
+  ctx.arg.initialHeap = args::getInteger(args, OPT_initial_heap, 0);
+  ctx.arg.initialMemory = args::getInteger(args, OPT_initial_memory, 0);
+  ctx.arg.maxMemory = args::getInteger(args, OPT_max_memory, 0);
+  ctx.arg.noGrowableMemory = args.hasArg(OPT_no_growable_memory);
+  ctx.arg.zStackSize =
       args::getZOptionValue(args, OPT_z, "stack-size", WasmPageSize);
 
   // -Bdynamic by default if -pie or -shared is specified.
-  if (config->pie || config->shared)
-    config->isStatic = false;
+  if (ctx.arg.pie || ctx.arg.shared)
+    ctx.arg.isStatic = false;
 
-  if (config->maxMemory != 0 && config->noGrowableMemory) {
+  if (ctx.arg.maxMemory != 0 && ctx.arg.noGrowableMemory) {
     // Erroring out here is simpler than defining precedence rules.
     error("--max-memory is incompatible with --no-growable-memory");
   }
 
   // Default value of exportDynamic depends on `-shared`
-  config->exportDynamic =
-      args.hasFlag(OPT_export_dynamic, OPT_no_export_dynamic, config->shared);
+  ctx.arg.exportDynamic =
+      args.hasFlag(OPT_export_dynamic, OPT_no_export_dynamic, ctx.arg.shared);
 
   // Parse wasm32/64.
   if (auto *arg = args.getLastArg(OPT_m)) {
     StringRef s = arg->getValue();
     if (s == "wasm32")
-      config->is64 = false;
+      ctx.arg.is64 = false;
     else if (s == "wasm64")
-      config->is64 = true;
+      ctx.arg.is64 = true;
     else
       error("invalid target architecture: " + s);
   }
@@ -679,36 +677,36 @@ static void readConfigs(opt::InputArgList &args) {
       error(arg->getSpelling() + ": expected a positive integer, but got '" +
             arg->getValue() + "'");
     parallel::strategy = hardware_concurrency(threads);
-    config->thinLTOJobs = v;
+    ctx.arg.thinLTOJobs = v;
   }
   if (auto *arg = args.getLastArg(OPT_thinlto_jobs))
-    config->thinLTOJobs = arg->getValue();
+    ctx.arg.thinLTOJobs = arg->getValue();
 
   if (auto *arg = args.getLastArg(OPT_features)) {
-    config->features =
+    ctx.arg.features =
         std::optional<std::vector<std::string>>(std::vector<std::string>());
     for (StringRef s : arg->getValues())
-      config->features->push_back(std::string(s));
+      ctx.arg.features->push_back(std::string(s));
   }
 
   if (auto *arg = args.getLastArg(OPT_extra_features)) {
-    config->extraFeatures =
+    ctx.arg.extraFeatures =
         std::optional<std::vector<std::string>>(std::vector<std::string>());
     for (StringRef s : arg->getValues())
-      config->extraFeatures->push_back(std::string(s));
+      ctx.arg.extraFeatures->push_back(std::string(s));
   }
 
   // Legacy --allow-undefined flag which is equivalent to
   // --unresolve-symbols=ignore + --import-undefined
   if (args.hasArg(OPT_allow_undefined)) {
-    config->importUndefined = true;
-    config->unresolvedSymbols = UnresolvedPolicy::Ignore;
+    ctx.arg.importUndefined = true;
+    ctx.arg.unresolvedSymbols = UnresolvedPolicy::Ignore;
   }
 
   if (args.hasArg(OPT_print_map))
-    config->mapFile = "-";
+    ctx.arg.mapFile = "-";
 
-  std::tie(config->buildId, config->buildIdVector) = getBuildId(args);
+  std::tie(ctx.arg.buildId, ctx.arg.buildIdVector) = getBuildId(args);
 }
 
 // Some Config members do not directly correspond to any particular
@@ -716,86 +714,86 @@ static void readConfigs(opt::InputArgList &args) {
 // This function initialize such members. See Config.h for the details
 // of these values.
 static void setConfigs() {
-  ctx.isPic = config->pie || config->shared;
+  ctx.isPic = ctx.arg.pie || ctx.arg.shared;
 
   if (ctx.isPic) {
-    if (config->exportTable)
+    if (ctx.arg.exportTable)
       error("-shared/-pie is incompatible with --export-table");
-    config->importTable = true;
+    ctx.arg.importTable = true;
   } else {
     // Default table base.  Defaults to 1, reserving 0 for the NULL function
     // pointer.
-    if (!config->tableBase)
-      config->tableBase = 1;
+    if (!ctx.arg.tableBase)
+      ctx.arg.tableBase = 1;
     // The default offset for static/global data, for when --global-base is
     // not specified on the command line.  The precise value of 1024 is
     // somewhat arbitrary, and pre-dates wasm-ld (Its the value that
     // emscripten used prior to wasm-ld).
-    if (!config->globalBase && !config->relocatable && !config->stackFirst)
-      config->globalBase = 1024;
+    if (!ctx.arg.globalBase && !ctx.arg.relocatable && !ctx.arg.stackFirst)
+      ctx.arg.globalBase = 1024;
   }
 
-  if (config->relocatable) {
-    if (config->exportTable)
+  if (ctx.arg.relocatable) {
+    if (ctx.arg.exportTable)
       error("--relocatable is incompatible with --export-table");
-    if (config->growableTable)
+    if (ctx.arg.growableTable)
       error("--relocatable is incompatible with --growable-table");
     // Ignore any --import-table, as it's redundant.
-    config->importTable = true;
+    ctx.arg.importTable = true;
   }
 
-  if (config->shared) {
-    if (config->memoryExport.has_value()) {
+  if (ctx.arg.shared) {
+    if (ctx.arg.memoryExport.has_value()) {
       error("--export-memory is incompatible with --shared");
     }
-    if (!config->memoryImport.has_value()) {
-      config->memoryImport =
-          std::pair<llvm::StringRef, llvm::StringRef>(defaultModule, memoryName);
+    if (!ctx.arg.memoryImport.has_value()) {
+      ctx.arg.memoryImport = std::pair<llvm::StringRef, llvm::StringRef>(
+          defaultModule, memoryName);
     }
   }
 
   // If neither export-memory nor import-memory is specified, default to
   // exporting memory under its default name.
-  if (!config->memoryExport.has_value() && !config->memoryImport.has_value()) {
-    config->memoryExport = memoryName;
+  if (!ctx.arg.memoryExport.has_value() && !ctx.arg.memoryImport.has_value()) {
+    ctx.arg.memoryExport = memoryName;
   }
 }
 
 // Some command line options or some combinations of them are not allowed.
 // This function checks for such errors.
 static void checkOptions(opt::InputArgList &args) {
-  if (!config->stripDebug && !config->stripAll && config->compressRelocations)
+  if (!ctx.arg.stripDebug && !ctx.arg.stripAll && ctx.arg.compressRelocations)
     error("--compress-relocations is incompatible with output debug"
           " information. Please pass --strip-debug or --strip-all");
 
-  if (config->ltoPartitions == 0)
+  if (ctx.arg.ltoPartitions == 0)
     error("--lto-partitions: number of threads must be > 0");
-  if (!get_threadpool_strategy(config->thinLTOJobs))
-    error("--thinlto-jobs: invalid job count: " + config->thinLTOJobs);
+  if (!get_threadpool_strategy(ctx.arg.thinLTOJobs))
+    error("--thinlto-jobs: invalid job count: " + ctx.arg.thinLTOJobs);
 
-  if (config->pie && config->shared)
+  if (ctx.arg.pie && ctx.arg.shared)
     error("-shared and -pie may not be used together");
 
-  if (config->outputFile.empty() && !config->thinLTOIndexOnly)
+  if (ctx.arg.outputFile.empty() && !ctx.arg.thinLTOIndexOnly)
     error("no output file specified");
 
-  if (config->importTable && config->exportTable)
+  if (ctx.arg.importTable && ctx.arg.exportTable)
     error("--import-table and --export-table may not be used together");
 
-  if (config->relocatable) {
-    if (!config->entry.empty())
+  if (ctx.arg.relocatable) {
+    if (!ctx.arg.entry.empty())
       error("entry point specified for relocatable output file");
-    if (config->gcSections)
+    if (ctx.arg.gcSections)
       error("-r and --gc-sections may not be used together");
-    if (config->compressRelocations)
+    if (ctx.arg.compressRelocations)
       error("-r -and --compress-relocations may not be used together");
     if (args.hasArg(OPT_undefined))
       error("-r -and --undefined may not be used together");
-    if (config->pie)
+    if (ctx.arg.pie)
       error("-r and -pie may not be used together");
-    if (config->sharedMemory)
+    if (ctx.arg.sharedMemory)
       error("-r and --shared-memory may not be used together");
-    if (config->globalBase)
+    if (ctx.arg.globalBase)
       error("-r and --global-base may not by used together");
   }
 
@@ -804,31 +802,31 @@ static void checkOptions(opt::InputArgList &args) {
   // mode, to give anyone using them a heads-up that they will be changing.
   //
   // Also, warn about flags which request explicit exports.
-  if (!config->experimentalPic) {
+  if (!ctx.arg.experimentalPic) {
     // -shared will change meaning when Module Linking is implemented.
-    if (config->shared) {
+    if (ctx.arg.shared) {
       warn("creating shared libraries, with -shared, is not yet stable");
     }
 
     // -pie will change meaning when Module Linking is implemented.
-    if (config->pie) {
+    if (ctx.arg.pie) {
       warn("creating PIEs, with -pie, is not yet stable");
     }
 
-    if (config->unresolvedSymbols == UnresolvedPolicy::ImportDynamic) {
+    if (ctx.arg.unresolvedSymbols == UnresolvedPolicy::ImportDynamic) {
       warn("dynamic imports are not yet stable "
            "(--unresolved-symbols=import-dynamic)");
     }
   }
 
-  if (config->bsymbolic && !config->shared) {
+  if (ctx.arg.bsymbolic && !ctx.arg.shared) {
     warn("-Bsymbolic is only meaningful when combined with -shared");
   }
 
   if (ctx.isPic) {
-    if (config->globalBase)
+    if (ctx.arg.globalBase)
       error("--global-base may not be used with -shared/-pie");
-    if (config->tableBase)
+    if (ctx.arg.tableBase)
       error("--table-base may not be used with -shared/-pie");
   }
 }
@@ -851,7 +849,7 @@ static Symbol *handleUndefined(StringRef name, const char *option) {
 
   if (auto *lazySym = dyn_cast<LazySymbol>(sym)) {
     lazySym->extract();
-    if (!config->whyExtract.empty())
+    if (!ctx.arg.whyExtract.empty())
       ctx.whyExtractRecords.emplace_back(option, sym->getFile(), *sym);
   }
 
@@ -861,20 +859,20 @@ static Symbol *handleUndefined(StringRef name, const char *option) {
 static void handleLibcall(StringRef name) {
   Symbol *sym = symtab->find(name);
   if (sym && sym->isLazy() && isa<BitcodeFile>(sym->getFile())) {
-    if (!config->whyExtract.empty())
+    if (!ctx.arg.whyExtract.empty())
       ctx.whyExtractRecords.emplace_back("<libcall>", sym->getFile(), *sym);
     cast<LazySymbol>(sym)->extract();
   }
 }
 
 static void writeWhyExtract() {
-  if (config->whyExtract.empty())
+  if (ctx.arg.whyExtract.empty())
     return;
 
   std::error_code ec;
-  raw_fd_ostream os(config->whyExtract, ec, sys::fs::OF_None);
+  raw_fd_ostream os(ctx.arg.whyExtract, ec, sys::fs::OF_None);
   if (ec) {
-    error("cannot open --why-extract= file " + config->whyExtract + ": " +
+    error("cannot open --why-extract= file " + ctx.arg.whyExtract + ": " +
           ec.message());
     return;
   }
@@ -905,14 +903,14 @@ static UndefinedGlobal *
 createUndefinedGlobal(StringRef name, llvm::wasm::WasmGlobalType *type) {
   auto *sym = cast<UndefinedGlobal>(symtab->addUndefinedGlobal(
       name, std::nullopt, std::nullopt, WASM_SYMBOL_UNDEFINED, nullptr, type));
-  config->allowUndefinedSymbols.insert(sym->getName());
+  ctx.arg.allowUndefinedSymbols.insert(sym->getName());
   sym->isUsedInRegularObj = true;
   return sym;
 }
 
 static InputGlobal *createGlobal(StringRef name, bool isMutable) {
   llvm::wasm::WasmGlobal wasmGlobal;
-  bool is64 = config->is64.value_or(false);
+  bool is64 = ctx.arg.is64.value_or(false);
   wasmGlobal.Type = {uint8_t(is64 ? WASM_TYPE_I64 : WASM_TYPE_I32), isMutable};
   wasmGlobal.InitExpr = intConst(0, is64);
   wasmGlobal.SymbolName = name;
@@ -931,7 +929,7 @@ static GlobalSymbol *createOptionalGlobal(StringRef name, bool isMutable) {
 
 // Create ABI-defined synthetic symbols
 static void createSyntheticSymbols() {
-  if (config->relocatable)
+  if (ctx.arg.relocatable)
     return;
 
   static WasmSignature nullSignature = {{}, {}};
@@ -947,11 +945,11 @@ static void createSyntheticSymbols() {
       "__wasm_call_ctors", WASM_SYMBOL_VISIBILITY_HIDDEN,
       make<SyntheticFunction>(nullSignature, "__wasm_call_ctors"));
 
-  bool is64 = config->is64.value_or(false);
+  bool is64 = ctx.arg.is64.value_or(false);
 
   if (ctx.isPic) {
     WasmSym::stackPointer =
-        createUndefinedGlobal("__stack_pointer", config->is64.value_or(false)
+        createUndefinedGlobal("__stack_pointer", ctx.arg.is64.value_or(false)
                                                      ? &mutableGlobalTypeI64
                                                      : &mutableGlobalTypeI32);
     // For PIC code, we import two global variables (__memory_base and
@@ -970,7 +968,7 @@ static void createSyntheticSymbols() {
     WasmSym::stackPointer->markLive();
   }
 
-  if (config->sharedMemory) {
+  if (ctx.arg.sharedMemory) {
     WasmSym::tlsBase = createGlobalVariable("__tls_base", true);
     WasmSym::tlsSize = createGlobalVariable("__tls_size", false);
     WasmSym::tlsAlign = createGlobalVariable("__tls_align", false);
@@ -983,12 +981,12 @@ static void createSyntheticSymbols() {
 }
 
 static void createOptionalSymbols() {
-  if (config->relocatable)
+  if (ctx.arg.relocatable)
     return;
 
   WasmSym::dsoHandle = symtab->addOptionalDataSymbol("__dso_handle");
 
-  if (!config->shared)
+  if (!ctx.arg.shared)
     WasmSym::dataEnd = symtab->addOptionalDataSymbol("__data_end");
 
   if (!ctx.isPic) {
@@ -1010,7 +1008,7 @@ static void createOptionalSymbols() {
   //
   // __tls_size and __tls_align are not needed in this case since they are only
   // needed for __wasm_init_tls (which we do not create in this case).
-  if (!config->sharedMemory)
+  if (!ctx.arg.sharedMemory)
     WasmSym::tlsBase = createOptionalGlobal("__tls_base", false);
 }
 
@@ -1035,7 +1033,7 @@ static void processStubLibrariesPreLTO() {
             // extracted during processStubLibraries, which is too late since
             // LTO has already being performed at that point.
             if (needed->isLazy() && isa<BitcodeFile>(needed->getFile())) {
-              if (!config->whyExtract.empty())
+              if (!ctx.arg.whyExtract.empty())
                 ctx.whyExtractRecords.emplace_back(toString(stub_file),
                                                    needed->getFile(), *needed);
               cast<LazySymbol>(needed)->extract();
@@ -1079,7 +1077,7 @@ static bool addStubSymbolDeps(const StubFile *stub_file, Symbol *sym,
       if (auto *lazy = dyn_cast<LazySymbol>(needed)) {
         depsAdded = true;
         lazy->extract();
-        if (!config->whyExtract.empty())
+        if (!ctx.arg.whyExtract.empty())
           ctx.whyExtractRecords.emplace_back(toString(stub_file),
                                              sym->getFile(), *sym);
       }