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@@ -40,7 +40,7 @@ using namespace llvm::wasm;
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using namespace lld;
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using namespace lld::wasm;
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-Configuration *lld::wasm::Config;
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+Configuration *lld::wasm::config;
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namespace {
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@@ -65,39 +65,39 @@ static void initLLVM() {
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class LinkerDriver {
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public:
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- void link(ArrayRef<const char *> ArgsArr);
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+ void link(ArrayRef<const char *> argsArr);
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private:
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- void createFiles(opt::InputArgList &Args);
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- void addFile(StringRef Path);
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- void addLibrary(StringRef Name);
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+ void createFiles(opt::InputArgList &args);
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+ void addFile(StringRef path);
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+ void addLibrary(StringRef name);
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// True if we are in --whole-archive and --no-whole-archive.
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- bool InWholeArchive = false;
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+ bool inWholeArchive = false;
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- std::vector<InputFile *> Files;
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+ std::vector<InputFile *> files;
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};
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} // anonymous namespace
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-bool lld::wasm::link(ArrayRef<const char *> Args, bool CanExitEarly,
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- raw_ostream &Error) {
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- errorHandler().LogName = args::getFilenameWithoutExe(Args[0]);
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- errorHandler().ErrorOS = &Error;
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- errorHandler().ColorDiagnostics = Error.has_colors();
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- errorHandler().ErrorLimitExceededMsg =
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+bool lld::wasm::link(ArrayRef<const char *> args, bool canExitEarly,
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+ raw_ostream &error) {
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+ errorHandler().logName = args::getFilenameWithoutExe(args[0]);
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+ errorHandler().errorOS = &error;
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+ errorHandler().colorDiagnostics = error.has_colors();
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+ errorHandler().errorLimitExceededMsg =
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"too many errors emitted, stopping now (use "
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"-error-limit=0 to see all errors)";
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- Config = make<Configuration>();
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- Symtab = make<SymbolTable>();
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+ config = make<Configuration>();
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+ symtab = make<SymbolTable>();
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initLLVM();
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- LinkerDriver().link(Args);
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+ LinkerDriver().link(args);
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// Exit immediately if we don't need to return to the caller.
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// This saves time because the overhead of calling destructors
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// for all globally-allocated objects is not negligible.
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- if (CanExitEarly)
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+ if (canExitEarly)
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exitLld(errorCount() ? 1 : 0);
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freeArena();
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@@ -110,7 +110,7 @@ bool lld::wasm::link(ArrayRef<const char *> Args, bool CanExitEarly,
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#undef PREFIX
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// Create table mapping all options defined in Options.td
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-static const opt::OptTable::Info OptInfo[] = {
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+static const opt::OptTable::Info optInfo[] = {
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#define OPTION(X1, X2, ID, KIND, GROUP, ALIAS, X7, X8, X9, X10, X11, X12) \
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{X1, X2, X10, X11, OPT_##ID, opt::Option::KIND##Class, \
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X9, X8, OPT_##GROUP, OPT_##ALIAS, X7, X12},
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@@ -121,57 +121,57 @@ static const opt::OptTable::Info OptInfo[] = {
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namespace {
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class WasmOptTable : public llvm::opt::OptTable {
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public:
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- WasmOptTable() : OptTable(OptInfo) {}
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- opt::InputArgList parse(ArrayRef<const char *> Argv);
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+ WasmOptTable() : OptTable(optInfo) {}
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+ opt::InputArgList parse(ArrayRef<const char *> argv);
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};
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} // namespace
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// Set color diagnostics according to -color-diagnostics={auto,always,never}
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// or -no-color-diagnostics flags.
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-static void handleColorDiagnostics(opt::InputArgList &Args) {
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- auto *Arg = Args.getLastArg(OPT_color_diagnostics, OPT_color_diagnostics_eq,
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+static void handleColorDiagnostics(opt::InputArgList &args) {
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+ auto *arg = args.getLastArg(OPT_color_diagnostics, OPT_color_diagnostics_eq,
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OPT_no_color_diagnostics);
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- if (!Arg)
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+ if (!arg)
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return;
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- if (Arg->getOption().getID() == OPT_color_diagnostics) {
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- errorHandler().ColorDiagnostics = true;
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- } else if (Arg->getOption().getID() == OPT_no_color_diagnostics) {
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- errorHandler().ColorDiagnostics = false;
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+ if (arg->getOption().getID() == OPT_color_diagnostics) {
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+ errorHandler().colorDiagnostics = true;
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+ } else if (arg->getOption().getID() == OPT_no_color_diagnostics) {
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+ errorHandler().colorDiagnostics = false;
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} else {
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- StringRef S = Arg->getValue();
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- if (S == "always")
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- errorHandler().ColorDiagnostics = true;
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- else if (S == "never")
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- errorHandler().ColorDiagnostics = false;
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- else if (S != "auto")
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- error("unknown option: --color-diagnostics=" + S);
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+ StringRef s = arg->getValue();
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+ if (s == "always")
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+ errorHandler().colorDiagnostics = true;
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+ else if (s == "never")
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+ errorHandler().colorDiagnostics = false;
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+ else if (s != "auto")
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+ error("unknown option: --color-diagnostics=" + s);
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}
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}
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// Find a file by concatenating given paths.
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-static Optional<std::string> findFile(StringRef Path1, const Twine &Path2) {
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- SmallString<128> S;
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- path::append(S, Path1, Path2);
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- if (fs::exists(S))
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- return S.str().str();
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+static Optional<std::string> findFile(StringRef path1, const Twine &path2) {
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+ SmallString<128> s;
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+ path::append(s, path1, path2);
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+ if (fs::exists(s))
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+ return s.str().str();
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return None;
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}
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-opt::InputArgList WasmOptTable::parse(ArrayRef<const char *> Argv) {
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- SmallVector<const char *, 256> Vec(Argv.data(), Argv.data() + Argv.size());
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+opt::InputArgList WasmOptTable::parse(ArrayRef<const char *> argv) {
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+ SmallVector<const char *, 256> vec(argv.data(), argv.data() + argv.size());
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- unsigned MissingIndex;
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- unsigned MissingCount;
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+ unsigned missingIndex;
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+ unsigned missingCount;
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// Expand response files (arguments in the form of @<filename>)
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- cl::ExpandResponseFiles(Saver, cl::TokenizeGNUCommandLine, Vec);
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+ cl::ExpandResponseFiles(saver, cl::TokenizeGNUCommandLine, vec);
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- opt::InputArgList Args = this->ParseArgs(Vec, MissingIndex, MissingCount);
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+ opt::InputArgList args = this->ParseArgs(vec, missingIndex, missingCount);
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- handleColorDiagnostics(Args);
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- for (auto *Arg : Args.filtered(OPT_UNKNOWN))
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- error("unknown argument: " + Arg->getAsString(Args));
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- return Args;
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+ handleColorDiagnostics(args);
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+ for (auto *arg : args.filtered(OPT_UNKNOWN))
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+ error("unknown argument: " + arg->getAsString(args));
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+ return args;
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}
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// Currently we allow a ".imports" to live alongside a library. This can
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@@ -181,189 +181,189 @@ opt::InputArgList WasmOptTable::parse(ArrayRef<const char *> Argv) {
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// In the long run this information would be better stored as a symbol
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// attribute/flag in the object file itself.
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// See: https://github.com/WebAssembly/tool-conventions/issues/35
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-static void readImportFile(StringRef Filename) {
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- if (Optional<MemoryBufferRef> Buf = readFile(Filename))
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- for (StringRef Sym : args::getLines(*Buf))
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- Config->AllowUndefinedSymbols.insert(Sym);
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+static void readImportFile(StringRef filename) {
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+ if (Optional<MemoryBufferRef> buf = readFile(filename))
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+ for (StringRef sym : args::getLines(*buf))
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+ config->allowUndefinedSymbols.insert(sym);
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}
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// Returns slices of MB by parsing MB as an archive file.
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// Each slice consists of a member file in the archive.
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-std::vector<MemoryBufferRef> static getArchiveMembers(MemoryBufferRef MB) {
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- std::unique_ptr<Archive> File =
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- CHECK(Archive::create(MB),
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- MB.getBufferIdentifier() + ": failed to parse archive");
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-
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- std::vector<MemoryBufferRef> V;
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- Error Err = Error::success();
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- for (const ErrorOr<Archive::Child> &COrErr : File->children(Err)) {
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- Archive::Child C =
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- CHECK(COrErr, MB.getBufferIdentifier() +
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+std::vector<MemoryBufferRef> static getArchiveMembers(MemoryBufferRef mb) {
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+ std::unique_ptr<Archive> file =
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+ CHECK(Archive::create(mb),
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+ mb.getBufferIdentifier() + ": failed to parse archive");
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+
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+ std::vector<MemoryBufferRef> v;
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+ Error err = Error::success();
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+ for (const ErrorOr<Archive::Child> &cOrErr : file->children(err)) {
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+ Archive::Child c =
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+ CHECK(cOrErr, mb.getBufferIdentifier() +
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": could not get the child of the archive");
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- MemoryBufferRef MBRef =
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- CHECK(C.getMemoryBufferRef(),
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- MB.getBufferIdentifier() +
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+ MemoryBufferRef mbref =
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+ CHECK(c.getMemoryBufferRef(),
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+ mb.getBufferIdentifier() +
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": could not get the buffer for a child of the archive");
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- V.push_back(MBRef);
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+ v.push_back(mbref);
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}
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- if (Err)
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- fatal(MB.getBufferIdentifier() +
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- ": Archive::children failed: " + toString(std::move(Err)));
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+ if (err)
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+ fatal(mb.getBufferIdentifier() +
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+ ": Archive::children failed: " + toString(std::move(err)));
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// Take ownership of memory buffers created for members of thin archives.
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- for (std::unique_ptr<MemoryBuffer> &MB : File->takeThinBuffers())
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- make<std::unique_ptr<MemoryBuffer>>(std::move(MB));
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+ for (std::unique_ptr<MemoryBuffer> &mb : file->takeThinBuffers())
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+ make<std::unique_ptr<MemoryBuffer>>(std::move(mb));
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- return V;
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+ return v;
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}
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-void LinkerDriver::addFile(StringRef Path) {
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- Optional<MemoryBufferRef> Buffer = readFile(Path);
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- if (!Buffer.hasValue())
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+void LinkerDriver::addFile(StringRef path) {
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+ Optional<MemoryBufferRef> buffer = readFile(path);
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+ if (!buffer.hasValue())
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return;
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- MemoryBufferRef MBRef = *Buffer;
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+ MemoryBufferRef mbref = *buffer;
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- switch (identify_magic(MBRef.getBuffer())) {
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+ switch (identify_magic(mbref.getBuffer())) {
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case file_magic::archive: {
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- SmallString<128> ImportFile = Path;
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- path::replace_extension(ImportFile, ".imports");
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- if (fs::exists(ImportFile))
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- readImportFile(ImportFile.str());
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+ SmallString<128> importFile = path;
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+ path::replace_extension(importFile, ".imports");
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+ if (fs::exists(importFile))
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+ readImportFile(importFile.str());
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// Handle -whole-archive.
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- if (InWholeArchive) {
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- for (MemoryBufferRef &M : getArchiveMembers(MBRef))
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- Files.push_back(createObjectFile(M, Path));
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+ if (inWholeArchive) {
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+ for (MemoryBufferRef &m : getArchiveMembers(mbref))
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+ files.push_back(createObjectFile(m, path));
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return;
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}
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- std::unique_ptr<Archive> File =
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- CHECK(Archive::create(MBRef), Path + ": failed to parse archive");
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+ std::unique_ptr<Archive> file =
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+ CHECK(Archive::create(mbref), path + ": failed to parse archive");
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- if (!File->isEmpty() && !File->hasSymbolTable()) {
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- error(MBRef.getBufferIdentifier() +
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+ if (!file->isEmpty() && !file->hasSymbolTable()) {
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+ error(mbref.getBufferIdentifier() +
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": archive has no index; run ranlib to add one");
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}
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- Files.push_back(make<ArchiveFile>(MBRef));
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+ files.push_back(make<ArchiveFile>(mbref));
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return;
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}
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case file_magic::bitcode:
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case file_magic::wasm_object:
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- Files.push_back(createObjectFile(MBRef));
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+ files.push_back(createObjectFile(mbref));
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break;
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default:
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- error("unknown file type: " + MBRef.getBufferIdentifier());
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+ error("unknown file type: " + mbref.getBufferIdentifier());
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}
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}
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// Add a given library by searching it from input search paths.
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-void LinkerDriver::addLibrary(StringRef Name) {
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- for (StringRef Dir : Config->SearchPaths) {
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- if (Optional<std::string> S = findFile(Dir, "lib" + Name + ".a")) {
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- addFile(*S);
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+void LinkerDriver::addLibrary(StringRef name) {
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+ for (StringRef dir : config->searchPaths) {
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+ if (Optional<std::string> s = findFile(dir, "lib" + name + ".a")) {
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+ addFile(*s);
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return;
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}
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}
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- error("unable to find library -l" + Name);
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+ error("unable to find library -l" + name);
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}
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-void LinkerDriver::createFiles(opt::InputArgList &Args) {
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- for (auto *Arg : Args) {
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- switch (Arg->getOption().getID()) {
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+void LinkerDriver::createFiles(opt::InputArgList &args) {
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+ for (auto *arg : args) {
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+ switch (arg->getOption().getID()) {
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case OPT_l:
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- addLibrary(Arg->getValue());
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+ addLibrary(arg->getValue());
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break;
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case OPT_INPUT:
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- addFile(Arg->getValue());
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+ addFile(arg->getValue());
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break;
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case OPT_whole_archive:
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- InWholeArchive = true;
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+ inWholeArchive = true;
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break;
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case OPT_no_whole_archive:
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- InWholeArchive = false;
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+ inWholeArchive = false;
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break;
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}
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}
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}
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-static StringRef getEntry(opt::InputArgList &Args) {
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- auto *Arg = Args.getLastArg(OPT_entry, OPT_no_entry);
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- if (!Arg) {
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- if (Args.hasArg(OPT_relocatable))
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+static StringRef getEntry(opt::InputArgList &args) {
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+ auto *arg = args.getLastArg(OPT_entry, OPT_no_entry);
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+ if (!arg) {
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+ if (args.hasArg(OPT_relocatable))
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return "";
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- if (Args.hasArg(OPT_shared))
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+ if (args.hasArg(OPT_shared))
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return "__wasm_call_ctors";
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return "_start";
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}
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- if (Arg->getOption().getID() == OPT_no_entry)
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+ if (arg->getOption().getID() == OPT_no_entry)
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return "";
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- return Arg->getValue();
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+ return arg->getValue();
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}
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// Initializes Config members by the command line options.
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-static void readConfigs(opt::InputArgList &Args) {
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- Config->AllowUndefined = Args.hasArg(OPT_allow_undefined);
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- Config->CheckFeatures =
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- Args.hasFlag(OPT_check_features, OPT_no_check_features, true);
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- Config->CompressRelocations = Args.hasArg(OPT_compress_relocations);
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- Config->Demangle = Args.hasFlag(OPT_demangle, OPT_no_demangle, true);
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- Config->DisableVerify = Args.hasArg(OPT_disable_verify);
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- Config->EmitRelocs = Args.hasArg(OPT_emit_relocs);
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- Config->Entry = getEntry(Args);
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- Config->ExportAll = Args.hasArg(OPT_export_all);
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- Config->ExportDynamic = Args.hasFlag(OPT_export_dynamic,
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+static void readConfigs(opt::InputArgList &args) {
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+ config->allowUndefined = args.hasArg(OPT_allow_undefined);
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+ config->checkFeatures =
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+ args.hasFlag(OPT_check_features, OPT_no_check_features, true);
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+ config->compressRelocations = args.hasArg(OPT_compress_relocations);
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+ config->demangle = args.hasFlag(OPT_demangle, OPT_no_demangle, true);
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+ config->disableVerify = args.hasArg(OPT_disable_verify);
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+ config->emitRelocs = args.hasArg(OPT_emit_relocs);
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+ config->entry = getEntry(args);
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+ config->exportAll = args.hasArg(OPT_export_all);
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+ config->exportDynamic = args.hasFlag(OPT_export_dynamic,
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OPT_no_export_dynamic, false);
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- Config->ExportTable = Args.hasArg(OPT_export_table);
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- errorHandler().FatalWarnings =
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- Args.hasFlag(OPT_fatal_warnings, OPT_no_fatal_warnings, false);
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- Config->ImportMemory = Args.hasArg(OPT_import_memory);
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- Config->SharedMemory = Args.hasArg(OPT_shared_memory);
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+ config->exportTable = args.hasArg(OPT_export_table);
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+ errorHandler().fatalWarnings =
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+ args.hasFlag(OPT_fatal_warnings, OPT_no_fatal_warnings, false);
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+ config->importMemory = args.hasArg(OPT_import_memory);
|
|
|
+ config->sharedMemory = args.hasArg(OPT_shared_memory);
|
|
|
// TODO: Make passive segments the default with shared memory
|
|
|
- Config->PassiveSegments =
|
|
|
- Args.hasFlag(OPT_passive_segments, OPT_active_segments, false);
|
|
|
- Config->ImportTable = Args.hasArg(OPT_import_table);
|
|
|
- Config->LTOO = args::getInteger(Args, OPT_lto_O, 2);
|
|
|
- Config->LTOPartitions = args::getInteger(Args, OPT_lto_partitions, 1);
|
|
|
- Config->Optimize = args::getInteger(Args, OPT_O, 0);
|
|
|
- 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);
|
|
|
- Config->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 =
|
|
|
- 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_L);
|
|
|
- Config->Shared = Args.hasArg(OPT_shared);
|
|
|
- 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(
|
|
|
- parseCachePruningPolicy(Args.getLastArgValue(OPT_thinlto_cache_policy)),
|
|
|
+ config->passiveSegments =
|
|
|
+ args.hasFlag(OPT_passive_segments, OPT_active_segments, false);
|
|
|
+ config->importTable = args.hasArg(OPT_import_table);
|
|
|
+ config->ltoo = args::getInteger(args, OPT_lto_O, 2);
|
|
|
+ config->ltoPartitions = args::getInteger(args, OPT_lto_partitions, 1);
|
|
|
+ config->optimize = args::getInteger(args, OPT_O, 0);
|
|
|
+ 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);
|
|
|
+ config->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 =
|
|
|
+ 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_L);
|
|
|
+ config->shared = args.hasArg(OPT_shared);
|
|
|
+ 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(
|
|
|
+ parseCachePruningPolicy(args.getLastArgValue(OPT_thinlto_cache_policy)),
|
|
|
"--thinlto-cache-policy: invalid cache policy");
|
|
|
- Config->ThinLTOJobs = args::getInteger(Args, OPT_thinlto_jobs, -1u);
|
|
|
- errorHandler().Verbose = Args.hasArg(OPT_verbose);
|
|
|
- LLVM_DEBUG(errorHandler().Verbose = true);
|
|
|
- ThreadsEnabled = Args.hasFlag(OPT_threads, OPT_no_threads, true);
|
|
|
-
|
|
|
- Config->InitialMemory = args::getInteger(Args, OPT_initial_memory, 0);
|
|
|
- Config->GlobalBase = args::getInteger(Args, OPT_global_base, 1024);
|
|
|
- Config->MaxMemory = args::getInteger(Args, OPT_max_memory, 0);
|
|
|
- Config->ZStackSize =
|
|
|
- args::getZOptionValue(Args, OPT_z, "stack-size", WasmPageSize);
|
|
|
-
|
|
|
- if (auto *Arg = Args.getLastArg(OPT_features)) {
|
|
|
- Config->Features =
|
|
|
+ config->thinLTOJobs = args::getInteger(args, OPT_thinlto_jobs, -1u);
|
|
|
+ errorHandler().verbose = args.hasArg(OPT_verbose);
|
|
|
+ LLVM_DEBUG(errorHandler().verbose = true);
|
|
|
+ threadsEnabled = args.hasFlag(OPT_threads, OPT_no_threads, true);
|
|
|
+
|
|
|
+ config->initialMemory = args::getInteger(args, OPT_initial_memory, 0);
|
|
|
+ config->globalBase = args::getInteger(args, OPT_global_base, 1024);
|
|
|
+ config->maxMemory = args::getInteger(args, OPT_max_memory, 0);
|
|
|
+ config->zStackSize =
|
|
|
+ args::getZOptionValue(args, OPT_z, "stack-size", WasmPageSize);
|
|
|
+
|
|
|
+ if (auto *arg = args.getLastArg(OPT_features)) {
|
|
|
+ config->features =
|
|
|
llvm::Optional<std::vector<std::string>>(std::vector<std::string>());
|
|
|
- for (StringRef S : Arg->getValues())
|
|
|
- Config->Features->push_back(S);
|
|
|
+ for (StringRef s : arg->getValues())
|
|
|
+ config->features->push_back(s);
|
|
|
}
|
|
|
}
|
|
|
|
|
@@ -372,183 +372,183 @@ static void readConfigs(opt::InputArgList &Args) {
|
|
|
// This function initialize such members. See Config.h for the details
|
|
|
// of these values.
|
|
|
static void setConfigs() {
|
|
|
- Config->Pic = Config->Pie || Config->Shared;
|
|
|
+ config->isPic = config->pie || config->shared;
|
|
|
|
|
|
- if (Config->Pic) {
|
|
|
- if (Config->ExportTable)
|
|
|
+ if (config->isPic) {
|
|
|
+ if (config->exportTable)
|
|
|
error("-shared/-pie is incompatible with --export-table");
|
|
|
- Config->ImportTable = true;
|
|
|
+ config->importTable = true;
|
|
|
}
|
|
|
|
|
|
- if (Config->Shared) {
|
|
|
- Config->ImportMemory = true;
|
|
|
- Config->ExportDynamic = true;
|
|
|
- Config->AllowUndefined = true;
|
|
|
+ if (config->shared) {
|
|
|
+ config->importMemory = true;
|
|
|
+ config->exportDynamic = true;
|
|
|
+ config->allowUndefined = true;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// 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)
|
|
|
+static void checkOptions(opt::InputArgList &args) {
|
|
|
+ if (!config->stripDebug && !config->stripAll && config->compressRelocations)
|
|
|
error("--compress-relocations is incompatible with output debug"
|
|
|
" information. Please pass --strip-debug or --strip-all");
|
|
|
|
|
|
- if (Config->LTOO > 3)
|
|
|
- error("invalid optimization level for LTO: " + Twine(Config->LTOO));
|
|
|
- if (Config->LTOPartitions == 0)
|
|
|
+ if (config->ltoo > 3)
|
|
|
+ error("invalid optimization level for LTO: " + Twine(config->ltoo));
|
|
|
+ if (config->ltoPartitions == 0)
|
|
|
error("--lto-partitions: number of threads must be > 0");
|
|
|
- if (Config->ThinLTOJobs == 0)
|
|
|
+ if (config->thinLTOJobs == 0)
|
|
|
error("--thinlto-jobs: number of threads must be > 0");
|
|
|
|
|
|
- if (Config->Pie && Config->Shared)
|
|
|
+ if (config->pie && config->shared)
|
|
|
error("-shared and -pie may not be used together");
|
|
|
|
|
|
- if (Config->OutputFile.empty())
|
|
|
+ if (config->outputFile.empty())
|
|
|
error("no output file specified");
|
|
|
|
|
|
- if (Config->ImportTable && Config->ExportTable)
|
|
|
+ if (config->importTable && config->exportTable)
|
|
|
error("--import-table and --export-table may not be used together");
|
|
|
|
|
|
- if (Config->Relocatable) {
|
|
|
- if (!Config->Entry.empty())
|
|
|
+ if (config->relocatable) {
|
|
|
+ if (!config->entry.empty())
|
|
|
error("entry point specified for relocatable output file");
|
|
|
- if (Config->GcSections)
|
|
|
+ if (config->gcSections)
|
|
|
error("-r and --gc-sections may not be used together");
|
|
|
- if (Config->CompressRelocations)
|
|
|
+ if (config->compressRelocations)
|
|
|
error("-r -and --compress-relocations may not be used together");
|
|
|
- if (Args.hasArg(OPT_undefined))
|
|
|
+ if (args.hasArg(OPT_undefined))
|
|
|
error("-r -and --undefined may not be used together");
|
|
|
- if (Config->Pie)
|
|
|
+ if (config->pie)
|
|
|
error("-r and -pie may not be used together");
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Force Sym to be entered in the output. Used for -u or equivalent.
|
|
|
-static Symbol *handleUndefined(StringRef Name) {
|
|
|
- Symbol *Sym = Symtab->find(Name);
|
|
|
- if (!Sym)
|
|
|
+static Symbol *handleUndefined(StringRef name) {
|
|
|
+ Symbol *sym = symtab->find(name);
|
|
|
+ if (!sym)
|
|
|
return nullptr;
|
|
|
|
|
|
// Since symbol S may not be used inside the program, LTO may
|
|
|
// eliminate it. Mark the symbol as "used" to prevent it.
|
|
|
- Sym->IsUsedInRegularObj = true;
|
|
|
+ sym->isUsedInRegularObj = true;
|
|
|
|
|
|
- if (auto *LazySym = dyn_cast<LazySymbol>(Sym))
|
|
|
- LazySym->fetch();
|
|
|
+ if (auto *lazySym = dyn_cast<LazySymbol>(sym))
|
|
|
+ lazySym->fetch();
|
|
|
|
|
|
- return Sym;
|
|
|
+ return sym;
|
|
|
}
|
|
|
|
|
|
static UndefinedGlobal *
|
|
|
-createUndefinedGlobal(StringRef Name, llvm::wasm::WasmGlobalType *Type) {
|
|
|
- auto *Sym =
|
|
|
- cast<UndefinedGlobal>(Symtab->addUndefinedGlobal(Name, Name,
|
|
|
- DefaultModule, 0,
|
|
|
- nullptr, Type));
|
|
|
- Config->AllowUndefinedSymbols.insert(Sym->getName());
|
|
|
- Sym->IsUsedInRegularObj = true;
|
|
|
- return Sym;
|
|
|
+createUndefinedGlobal(StringRef name, llvm::wasm::WasmGlobalType *type) {
|
|
|
+ auto *sym =
|
|
|
+ cast<UndefinedGlobal>(symtab->addUndefinedGlobal(name, name,
|
|
|
+ defaultModule, 0,
|
|
|
+ nullptr, type));
|
|
|
+ config->allowUndefinedSymbols.insert(sym->getName());
|
|
|
+ sym->isUsedInRegularObj = true;
|
|
|
+ return sym;
|
|
|
}
|
|
|
|
|
|
// Create ABI-defined synthetic symbols
|
|
|
static void createSyntheticSymbols() {
|
|
|
- static WasmSignature NullSignature = {{}, {}};
|
|
|
- static llvm::wasm::WasmGlobalType GlobalTypeI32 = {WASM_TYPE_I32, false};
|
|
|
- static llvm::wasm::WasmGlobalType MutableGlobalTypeI32 = {WASM_TYPE_I32,
|
|
|
+ static WasmSignature nullSignature = {{}, {}};
|
|
|
+ static llvm::wasm::WasmGlobalType globalTypeI32 = {WASM_TYPE_I32, false};
|
|
|
+ static llvm::wasm::WasmGlobalType mutableGlobalTypeI32 = {WASM_TYPE_I32,
|
|
|
true};
|
|
|
|
|
|
- if (!Config->Relocatable) {
|
|
|
- WasmSym::CallCtors = Symtab->addSyntheticFunction(
|
|
|
+ if (!config->relocatable) {
|
|
|
+ WasmSym::callCtors = symtab->addSyntheticFunction(
|
|
|
"__wasm_call_ctors", WASM_SYMBOL_VISIBILITY_HIDDEN,
|
|
|
- make<SyntheticFunction>(NullSignature, "__wasm_call_ctors"));
|
|
|
+ make<SyntheticFunction>(nullSignature, "__wasm_call_ctors"));
|
|
|
|
|
|
- if (Config->PassiveSegments) {
|
|
|
+ if (config->passiveSegments) {
|
|
|
// Passive segments are used to avoid memory being reinitialized on each
|
|
|
// thread's instantiation. These passive segments are initialized and
|
|
|
// dropped in __wasm_init_memory, which is the first function called from
|
|
|
// __wasm_call_ctors.
|
|
|
- WasmSym::InitMemory = Symtab->addSyntheticFunction(
|
|
|
+ WasmSym::initMemory = symtab->addSyntheticFunction(
|
|
|
"__wasm_init_memory", WASM_SYMBOL_VISIBILITY_HIDDEN,
|
|
|
- make<SyntheticFunction>(NullSignature, "__wasm_init_memory"));
|
|
|
+ make<SyntheticFunction>(nullSignature, "__wasm_init_memory"));
|
|
|
}
|
|
|
|
|
|
- if (Config->Pic) {
|
|
|
+ if (config->isPic) {
|
|
|
// For PIC code we create a synthetic function __wasm_apply_relocs which
|
|
|
// is called from __wasm_call_ctors before the user-level constructors.
|
|
|
- WasmSym::ApplyRelocs = Symtab->addSyntheticFunction(
|
|
|
+ WasmSym::applyRelocs = symtab->addSyntheticFunction(
|
|
|
"__wasm_apply_relocs", WASM_SYMBOL_VISIBILITY_HIDDEN,
|
|
|
- make<SyntheticFunction>(NullSignature, "__wasm_apply_relocs"));
|
|
|
+ make<SyntheticFunction>(nullSignature, "__wasm_apply_relocs"));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// The __stack_pointer is imported in the shared library case, and exported
|
|
|
// in the non-shared (executable) case.
|
|
|
- if (Config->Shared) {
|
|
|
- WasmSym::StackPointer =
|
|
|
- createUndefinedGlobal("__stack_pointer", &MutableGlobalTypeI32);
|
|
|
+ if (config->shared) {
|
|
|
+ WasmSym::stackPointer =
|
|
|
+ createUndefinedGlobal("__stack_pointer", &mutableGlobalTypeI32);
|
|
|
} else {
|
|
|
- llvm::wasm::WasmGlobal Global;
|
|
|
- Global.Type = {WASM_TYPE_I32, true};
|
|
|
- Global.InitExpr.Value.Int32 = 0;
|
|
|
- Global.InitExpr.Opcode = WASM_OPCODE_I32_CONST;
|
|
|
- Global.SymbolName = "__stack_pointer";
|
|
|
- auto *StackPointer = make<InputGlobal>(Global, nullptr);
|
|
|
- StackPointer->Live = true;
|
|
|
+ llvm::wasm::WasmGlobal global;
|
|
|
+ global.Type = {WASM_TYPE_I32, true};
|
|
|
+ global.InitExpr.Value.Int32 = 0;
|
|
|
+ global.InitExpr.Opcode = WASM_OPCODE_I32_CONST;
|
|
|
+ global.SymbolName = "__stack_pointer";
|
|
|
+ auto *stackPointer = make<InputGlobal>(global, nullptr);
|
|
|
+ stackPointer->live = true;
|
|
|
// For non-PIC code
|
|
|
// TODO(sbc): Remove WASM_SYMBOL_VISIBILITY_HIDDEN when the mutable global
|
|
|
// spec proposal is implemented in all major browsers.
|
|
|
// See: https://github.com/WebAssembly/mutable-global
|
|
|
- WasmSym::StackPointer = Symtab->addSyntheticGlobal(
|
|
|
- "__stack_pointer", WASM_SYMBOL_VISIBILITY_HIDDEN, StackPointer);
|
|
|
- WasmSym::DataEnd = Symtab->addOptionalDataSymbol("__data_end");
|
|
|
- WasmSym::GlobalBase = Symtab->addOptionalDataSymbol("__global_base");
|
|
|
- WasmSym::HeapBase = Symtab->addOptionalDataSymbol("__heap_base");
|
|
|
+ WasmSym::stackPointer = symtab->addSyntheticGlobal(
|
|
|
+ "__stack_pointer", WASM_SYMBOL_VISIBILITY_HIDDEN, stackPointer);
|
|
|
+ WasmSym::dataEnd = symtab->addOptionalDataSymbol("__data_end");
|
|
|
+ WasmSym::globalBase = symtab->addOptionalDataSymbol("__global_base");
|
|
|
+ WasmSym::heapBase = symtab->addOptionalDataSymbol("__heap_base");
|
|
|
}
|
|
|
|
|
|
- if (Config->Pic) {
|
|
|
+ if (config->isPic) {
|
|
|
// For PIC code, we import two global variables (__memory_base and
|
|
|
// __table_base) from the environment and use these as the offset at
|
|
|
// which to load our static data and function table.
|
|
|
// See:
|
|
|
// https://github.com/WebAssembly/tool-conventions/blob/master/DynamicLinking.md
|
|
|
- WasmSym::MemoryBase =
|
|
|
- createUndefinedGlobal("__memory_base", &GlobalTypeI32);
|
|
|
- WasmSym::TableBase = createUndefinedGlobal("__table_base", &GlobalTypeI32);
|
|
|
- WasmSym::MemoryBase->markLive();
|
|
|
- WasmSym::TableBase->markLive();
|
|
|
+ WasmSym::memoryBase =
|
|
|
+ createUndefinedGlobal("__memory_base", &globalTypeI32);
|
|
|
+ WasmSym::tableBase = createUndefinedGlobal("__table_base", &globalTypeI32);
|
|
|
+ WasmSym::memoryBase->markLive();
|
|
|
+ WasmSym::tableBase->markLive();
|
|
|
}
|
|
|
|
|
|
- WasmSym::DsoHandle = Symtab->addSyntheticDataSymbol(
|
|
|
+ WasmSym::dsoHandle = symtab->addSyntheticDataSymbol(
|
|
|
"__dso_handle", WASM_SYMBOL_VISIBILITY_HIDDEN);
|
|
|
}
|
|
|
|
|
|
// Reconstructs command line arguments so that so that you can re-run
|
|
|
// the same command with the same inputs. This is for --reproduce.
|
|
|
-static std::string createResponseFile(const opt::InputArgList &Args) {
|
|
|
- SmallString<0> Data;
|
|
|
- raw_svector_ostream OS(Data);
|
|
|
+static std::string createResponseFile(const opt::InputArgList &args) {
|
|
|
+ SmallString<0> data;
|
|
|
+ raw_svector_ostream os(data);
|
|
|
|
|
|
// Copy the command line to the output while rewriting paths.
|
|
|
- for (auto *Arg : Args) {
|
|
|
- switch (Arg->getOption().getID()) {
|
|
|
+ for (auto *arg : args) {
|
|
|
+ switch (arg->getOption().getID()) {
|
|
|
case OPT_reproduce:
|
|
|
break;
|
|
|
case OPT_INPUT:
|
|
|
- OS << quote(relativeToRoot(Arg->getValue())) << "\n";
|
|
|
+ os << quote(relativeToRoot(arg->getValue())) << "\n";
|
|
|
break;
|
|
|
case OPT_o:
|
|
|
// If -o path contains directories, "lld @response.txt" will likely
|
|
|
// fail because the archive we are creating doesn't contain empty
|
|
|
// directories for the output path (-o doesn't create directories).
|
|
|
// Strip directories to prevent the issue.
|
|
|
- OS << "-o " << quote(sys::path::filename(Arg->getValue())) << "\n";
|
|
|
+ os << "-o " << quote(sys::path::filename(arg->getValue())) << "\n";
|
|
|
break;
|
|
|
default:
|
|
|
- OS << toString(*Arg) << "\n";
|
|
|
+ os << toString(*arg) << "\n";
|
|
|
}
|
|
|
}
|
|
|
- return Data.str();
|
|
|
+ return data.str();
|
|
|
}
|
|
|
|
|
|
// The --wrap option is a feature to rename symbols so that you can write
|
|
@@ -560,13 +560,13 @@ static std::string createResponseFile(const opt::InputArgList &Args) {
|
|
|
//
|
|
|
// This data structure is instantiated for each -wrap option.
|
|
|
struct WrappedSymbol {
|
|
|
- Symbol *Sym;
|
|
|
- Symbol *Real;
|
|
|
- Symbol *Wrap;
|
|
|
+ Symbol *sym;
|
|
|
+ Symbol *real;
|
|
|
+ Symbol *wrap;
|
|
|
};
|
|
|
|
|
|
-static Symbol *addUndefined(StringRef Name) {
|
|
|
- return Symtab->addUndefinedFunction(Name, "", "", 0, nullptr, nullptr, false);
|
|
|
+static Symbol *addUndefined(StringRef name) {
|
|
|
+ return symtab->addUndefinedFunction(name, "", "", 0, nullptr, nullptr, false);
|
|
|
}
|
|
|
|
|
|
// Handles -wrap option.
|
|
@@ -574,34 +574,34 @@ static Symbol *addUndefined(StringRef Name) {
|
|
|
// This function instantiates wrapper symbols. At this point, they seem
|
|
|
// like they are not being used at all, so we explicitly set some flags so
|
|
|
// that LTO won't eliminate them.
|
|
|
-static std::vector<WrappedSymbol> addWrappedSymbols(opt::InputArgList &Args) {
|
|
|
- std::vector<WrappedSymbol> V;
|
|
|
- DenseSet<StringRef> Seen;
|
|
|
+static std::vector<WrappedSymbol> addWrappedSymbols(opt::InputArgList &args) {
|
|
|
+ std::vector<WrappedSymbol> v;
|
|
|
+ DenseSet<StringRef> seen;
|
|
|
|
|
|
- for (auto *Arg : Args.filtered(OPT_wrap)) {
|
|
|
- StringRef Name = Arg->getValue();
|
|
|
- if (!Seen.insert(Name).second)
|
|
|
+ for (auto *arg : args.filtered(OPT_wrap)) {
|
|
|
+ StringRef name = arg->getValue();
|
|
|
+ if (!seen.insert(name).second)
|
|
|
continue;
|
|
|
|
|
|
- Symbol *Sym = Symtab->find(Name);
|
|
|
- if (!Sym)
|
|
|
+ Symbol *sym = symtab->find(name);
|
|
|
+ if (!sym)
|
|
|
continue;
|
|
|
|
|
|
- Symbol *Real = addUndefined(Saver.save("__real_" + Name));
|
|
|
- Symbol *Wrap = addUndefined(Saver.save("__wrap_" + Name));
|
|
|
- V.push_back({Sym, Real, Wrap});
|
|
|
+ Symbol *real = addUndefined(saver.save("__real_" + name));
|
|
|
+ Symbol *wrap = addUndefined(saver.save("__wrap_" + name));
|
|
|
+ v.push_back({sym, real, wrap});
|
|
|
|
|
|
// We want to tell LTO not to inline symbols to be overwritten
|
|
|
// because LTO doesn't know the final symbol contents after renaming.
|
|
|
- Real->CanInline = false;
|
|
|
- Sym->CanInline = false;
|
|
|
+ real->canInline = false;
|
|
|
+ sym->canInline = false;
|
|
|
|
|
|
// Tell LTO not to eliminate these symbols.
|
|
|
- Sym->IsUsedInRegularObj = true;
|
|
|
- Wrap->IsUsedInRegularObj = true;
|
|
|
- Real->IsUsedInRegularObj = false;
|
|
|
+ sym->isUsedInRegularObj = true;
|
|
|
+ wrap->isUsedInRegularObj = true;
|
|
|
+ real->isUsedInRegularObj = false;
|
|
|
}
|
|
|
- return V;
|
|
|
+ return v;
|
|
|
}
|
|
|
|
|
|
// Do renaming for -wrap by updating pointers to symbols.
|
|
@@ -609,158 +609,158 @@ static std::vector<WrappedSymbol> addWrappedSymbols(opt::InputArgList &Args) {
|
|
|
// When this function is executed, only InputFiles and symbol table
|
|
|
// contain pointers to symbol objects. We visit them to replace pointers,
|
|
|
// so that wrapped symbols are swapped as instructed by the command line.
|
|
|
-static void wrapSymbols(ArrayRef<WrappedSymbol> Wrapped) {
|
|
|
- DenseMap<Symbol *, Symbol *> Map;
|
|
|
- for (const WrappedSymbol &W : Wrapped) {
|
|
|
- Map[W.Sym] = W.Wrap;
|
|
|
- Map[W.Real] = W.Sym;
|
|
|
+static void wrapSymbols(ArrayRef<WrappedSymbol> wrapped) {
|
|
|
+ DenseMap<Symbol *, Symbol *> map;
|
|
|
+ for (const WrappedSymbol &w : wrapped) {
|
|
|
+ map[w.sym] = w.wrap;
|
|
|
+ map[w.real] = w.sym;
|
|
|
}
|
|
|
|
|
|
// Update pointers in input files.
|
|
|
- parallelForEach(Symtab->ObjectFiles, [&](InputFile *File) {
|
|
|
- MutableArrayRef<Symbol *> Syms = File->getMutableSymbols();
|
|
|
- for (size_t I = 0, E = Syms.size(); I != E; ++I)
|
|
|
- if (Symbol *S = Map.lookup(Syms[I]))
|
|
|
- Syms[I] = S;
|
|
|
+ parallelForEach(symtab->objectFiles, [&](InputFile *file) {
|
|
|
+ MutableArrayRef<Symbol *> syms = file->getMutableSymbols();
|
|
|
+ for (size_t i = 0, e = syms.size(); i != e; ++i)
|
|
|
+ if (Symbol *s = map.lookup(syms[i]))
|
|
|
+ syms[i] = s;
|
|
|
});
|
|
|
|
|
|
// Update pointers in the symbol table.
|
|
|
- for (const WrappedSymbol &W : Wrapped)
|
|
|
- Symtab->wrap(W.Sym, W.Real, W.Wrap);
|
|
|
+ for (const WrappedSymbol &w : wrapped)
|
|
|
+ symtab->wrap(w.sym, w.real, w.wrap);
|
|
|
}
|
|
|
|
|
|
-void LinkerDriver::link(ArrayRef<const char *> ArgsArr) {
|
|
|
- WasmOptTable Parser;
|
|
|
- opt::InputArgList Args = Parser.parse(ArgsArr.slice(1));
|
|
|
+void LinkerDriver::link(ArrayRef<const char *> argsArr) {
|
|
|
+ WasmOptTable parser;
|
|
|
+ opt::InputArgList args = parser.parse(argsArr.slice(1));
|
|
|
|
|
|
// Handle --help
|
|
|
- if (Args.hasArg(OPT_help)) {
|
|
|
- Parser.PrintHelp(outs(),
|
|
|
- (std::string(ArgsArr[0]) + " [options] file...").c_str(),
|
|
|
+ if (args.hasArg(OPT_help)) {
|
|
|
+ parser.PrintHelp(outs(),
|
|
|
+ (std::string(argsArr[0]) + " [options] file...").c_str(),
|
|
|
"LLVM Linker", false);
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// Handle --version
|
|
|
- if (Args.hasArg(OPT_version) || Args.hasArg(OPT_v)) {
|
|
|
+ if (args.hasArg(OPT_version) || args.hasArg(OPT_v)) {
|
|
|
outs() << getLLDVersion() << "\n";
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// Handle --reproduce
|
|
|
- if (auto *Arg = Args.getLastArg(OPT_reproduce)) {
|
|
|
- StringRef Path = Arg->getValue();
|
|
|
- Expected<std::unique_ptr<TarWriter>> ErrOrWriter =
|
|
|
- TarWriter::create(Path, path::stem(Path));
|
|
|
- if (ErrOrWriter) {
|
|
|
- Tar = std::move(*ErrOrWriter);
|
|
|
- Tar->append("response.txt", createResponseFile(Args));
|
|
|
- Tar->append("version.txt", getLLDVersion() + "\n");
|
|
|
+ if (auto *arg = args.getLastArg(OPT_reproduce)) {
|
|
|
+ StringRef path = arg->getValue();
|
|
|
+ Expected<std::unique_ptr<TarWriter>> errOrWriter =
|
|
|
+ TarWriter::create(path, path::stem(path));
|
|
|
+ if (errOrWriter) {
|
|
|
+ tar = std::move(*errOrWriter);
|
|
|
+ tar->append("response.txt", createResponseFile(args));
|
|
|
+ tar->append("version.txt", getLLDVersion() + "\n");
|
|
|
} else {
|
|
|
- error("--reproduce: " + toString(ErrOrWriter.takeError()));
|
|
|
+ error("--reproduce: " + toString(errOrWriter.takeError()));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Parse and evaluate -mllvm options.
|
|
|
- std::vector<const char *> V;
|
|
|
- V.push_back("wasm-ld (LLVM option parsing)");
|
|
|
- for (auto *Arg : Args.filtered(OPT_mllvm))
|
|
|
- V.push_back(Arg->getValue());
|
|
|
- cl::ParseCommandLineOptions(V.size(), V.data());
|
|
|
+ std::vector<const char *> v;
|
|
|
+ v.push_back("wasm-ld (LLVM option parsing)");
|
|
|
+ for (auto *arg : args.filtered(OPT_mllvm))
|
|
|
+ v.push_back(arg->getValue());
|
|
|
+ cl::ParseCommandLineOptions(v.size(), v.data());
|
|
|
|
|
|
- errorHandler().ErrorLimit = args::getInteger(Args, OPT_error_limit, 20);
|
|
|
+ errorHandler().errorLimit = args::getInteger(args, OPT_error_limit, 20);
|
|
|
|
|
|
- readConfigs(Args);
|
|
|
+ readConfigs(args);
|
|
|
setConfigs();
|
|
|
- checkOptions(Args);
|
|
|
+ checkOptions(args);
|
|
|
|
|
|
- if (auto *Arg = Args.getLastArg(OPT_allow_undefined_file))
|
|
|
- readImportFile(Arg->getValue());
|
|
|
+ if (auto *arg = args.getLastArg(OPT_allow_undefined_file))
|
|
|
+ readImportFile(arg->getValue());
|
|
|
|
|
|
- if (!Args.hasArg(OPT_INPUT)) {
|
|
|
+ if (!args.hasArg(OPT_INPUT)) {
|
|
|
error("no input files");
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// Handle --trace-symbol.
|
|
|
- for (auto *Arg : Args.filtered(OPT_trace_symbol))
|
|
|
- Symtab->trace(Arg->getValue());
|
|
|
+ for (auto *arg : args.filtered(OPT_trace_symbol))
|
|
|
+ symtab->trace(arg->getValue());
|
|
|
|
|
|
- for (auto *Arg : Args.filtered(OPT_export))
|
|
|
- Config->ExportedSymbols.insert(Arg->getValue());
|
|
|
+ for (auto *arg : args.filtered(OPT_export))
|
|
|
+ config->exportedSymbols.insert(arg->getValue());
|
|
|
|
|
|
- if (!Config->Relocatable)
|
|
|
+ if (!config->relocatable)
|
|
|
createSyntheticSymbols();
|
|
|
|
|
|
- createFiles(Args);
|
|
|
+ createFiles(args);
|
|
|
if (errorCount())
|
|
|
return;
|
|
|
|
|
|
// Add all files to the symbol table. This will add almost all
|
|
|
// symbols that we need to the symbol table.
|
|
|
- for (InputFile *F : Files)
|
|
|
- Symtab->addFile(F);
|
|
|
+ for (InputFile *f : files)
|
|
|
+ symtab->addFile(f);
|
|
|
if (errorCount())
|
|
|
return;
|
|
|
|
|
|
// Handle the `--undefined <sym>` options.
|
|
|
- for (auto *Arg : Args.filtered(OPT_undefined))
|
|
|
- handleUndefined(Arg->getValue());
|
|
|
+ for (auto *arg : args.filtered(OPT_undefined))
|
|
|
+ handleUndefined(arg->getValue());
|
|
|
|
|
|
// Handle the `--export <sym>` options
|
|
|
// This works like --undefined but also exports the symbol if its found
|
|
|
- for (auto *Arg : Args.filtered(OPT_export))
|
|
|
- handleUndefined(Arg->getValue());
|
|
|
-
|
|
|
- Symbol *EntrySym = nullptr;
|
|
|
- if (!Config->Relocatable && !Config->Entry.empty()) {
|
|
|
- EntrySym = handleUndefined(Config->Entry);
|
|
|
- if (EntrySym && EntrySym->isDefined())
|
|
|
- EntrySym->ForceExport = true;
|
|
|
+ for (auto *arg : args.filtered(OPT_export))
|
|
|
+ handleUndefined(arg->getValue());
|
|
|
+
|
|
|
+ Symbol *entrySym = nullptr;
|
|
|
+ if (!config->relocatable && !config->entry.empty()) {
|
|
|
+ entrySym = handleUndefined(config->entry);
|
|
|
+ if (entrySym && entrySym->isDefined())
|
|
|
+ entrySym->forceExport = true;
|
|
|
else
|
|
|
error("entry symbol not defined (pass --no-entry to supress): " +
|
|
|
- Config->Entry);
|
|
|
+ config->entry);
|
|
|
}
|
|
|
|
|
|
if (errorCount())
|
|
|
return;
|
|
|
|
|
|
// Create wrapped symbols for -wrap option.
|
|
|
- std::vector<WrappedSymbol> Wrapped = addWrappedSymbols(Args);
|
|
|
+ std::vector<WrappedSymbol> wrapped = addWrappedSymbols(args);
|
|
|
|
|
|
// Do link-time optimization if given files are LLVM bitcode files.
|
|
|
// This compiles bitcode files into real object files.
|
|
|
- Symtab->addCombinedLTOObject();
|
|
|
+ symtab->addCombinedLTOObject();
|
|
|
if (errorCount())
|
|
|
return;
|
|
|
|
|
|
// Resolve any variant symbols that were created due to signature
|
|
|
// mismatchs.
|
|
|
- Symtab->handleSymbolVariants();
|
|
|
+ symtab->handleSymbolVariants();
|
|
|
if (errorCount())
|
|
|
return;
|
|
|
|
|
|
// Apply symbol renames for -wrap.
|
|
|
- if (!Wrapped.empty())
|
|
|
- wrapSymbols(Wrapped);
|
|
|
-
|
|
|
- for (auto *Arg : Args.filtered(OPT_export)) {
|
|
|
- Symbol *Sym = Symtab->find(Arg->getValue());
|
|
|
- if (Sym && Sym->isDefined())
|
|
|
- Sym->ForceExport = true;
|
|
|
- else if (!Config->AllowUndefined)
|
|
|
+ if (!wrapped.empty())
|
|
|
+ wrapSymbols(wrapped);
|
|
|
+
|
|
|
+ for (auto *arg : args.filtered(OPT_export)) {
|
|
|
+ Symbol *sym = symtab->find(arg->getValue());
|
|
|
+ if (sym && sym->isDefined())
|
|
|
+ sym->forceExport = true;
|
|
|
+ else if (!config->allowUndefined)
|
|
|
error(Twine("symbol exported via --export not found: ") +
|
|
|
- Arg->getValue());
|
|
|
+ arg->getValue());
|
|
|
}
|
|
|
|
|
|
- if (!Config->Relocatable) {
|
|
|
+ if (!config->relocatable) {
|
|
|
// Add synthetic dummies for weak undefined functions. Must happen
|
|
|
// after LTO otherwise functions may not yet have signatures.
|
|
|
- Symtab->handleWeakUndefines();
|
|
|
+ symtab->handleWeakUndefines();
|
|
|
}
|
|
|
|
|
|
- if (EntrySym)
|
|
|
- EntrySym->setHidden(false);
|
|
|
+ if (entrySym)
|
|
|
+ entrySym->setHidden(false);
|
|
|
|
|
|
if (errorCount())
|
|
|
return;
|