dd647e3e60
Apologies for the large change, I looked for ways to break this up and all of the ones I saw added real complexity. This change focuses on the option's prefixed names and the array of prefixes. These are present in every option and the dominant source of dynamic relocations for PIE or PIC users of LLVM and Clang tooling. In some cases, 100s or 1000s of them for the Clang driver which has a huge number of options. This PR addresses this by building a string table and a prefixes table that can be referenced with indices rather than pointers that require dynamic relocations. This removes almost 7k dynmaic relocations from the `clang` binary, roughly 8% of the remaining dynmaic relocations outside of vtables. For busy-boxing use cases where many different option tables are linked into the same binary, the savings add up a bit more. The string table is a straightforward mechanism, but the prefixes required some subtlety. They are encoded in a Pascal-string fashion with a size followed by a sequence of offsets. This works relatively well for the small realistic prefixes arrays in use. Lots of code has to change in order to land this though: both all the option library code has to be updated to use the string table and prefixes table, and all the users of the options library have to be updated to correctly instantiate the objects. Some follow-up patches in the works to provide an abstraction for this style of code, and to start using the same technique for some of the other strings here now that the infrastructure is in place.
600 lines
21 KiB
C++
600 lines
21 KiB
C++
//===- MinGW/Driver.cpp ---------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// MinGW is a GNU development environment for Windows. It consists of GNU
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// tools such as GCC and GNU ld. Unlike Cygwin, there's no POSIX-compatible
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// layer, as it aims to be a native development toolchain.
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//
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// lld/MinGW is a drop-in replacement for GNU ld/MinGW.
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//
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// Being a native development tool, a MinGW linker is not very different from
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// Microsoft link.exe, so a MinGW linker can be implemented as a thin wrapper
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// for lld/COFF. This driver takes Unix-ish command line options, translates
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// them to Windows-ish ones, and then passes them to lld/COFF.
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//
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// When this driver calls the lld/COFF driver, it passes a hidden option
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// "-lldmingw" along with other user-supplied options, to run the lld/COFF
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// linker in "MinGW mode".
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//
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// There are subtle differences between MS link.exe and GNU ld/MinGW, and GNU
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// ld/MinGW implements a few GNU-specific features. Such features are directly
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// implemented in lld/COFF and enabled only when the linker is running in MinGW
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// mode.
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//
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//===----------------------------------------------------------------------===//
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#include "lld/Common/Driver.h"
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#include "lld/Common/CommonLinkerContext.h"
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#include "lld/Common/ErrorHandler.h"
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#include "lld/Common/Memory.h"
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#include "lld/Common/Version.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Option/Arg.h"
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#include "llvm/Option/ArgList.h"
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#include "llvm/Option/Option.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/TargetParser/Host.h"
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#include "llvm/TargetParser/Triple.h"
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#include <optional>
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using namespace lld;
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using namespace llvm::opt;
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using namespace llvm;
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// Create OptTable
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enum {
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OPT_INVALID = 0,
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#define OPTION(...) LLVM_MAKE_OPT_ID(__VA_ARGS__),
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#include "Options.inc"
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#undef OPTION
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};
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#define OPTTABLE_STR_TABLE_CODE
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#include "Options.inc"
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#undef OPTTABLE_STR_TABLE_CODE
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#define OPTTABLE_PREFIXES_TABLE_CODE
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#include "Options.inc"
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#undef OPTTABLE_PREFIXES_TABLE_CODE
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// Create table mapping all options defined in Options.td
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static constexpr opt::OptTable::Info infoTable[] = {
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#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, \
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VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, \
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VALUES) \
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{PREFIX, \
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NAME, \
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HELPTEXT, \
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HELPTEXTSFORVARIANTS, \
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METAVAR, \
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OPT_##ID, \
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opt::Option::KIND##Class, \
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PARAM, \
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FLAGS, \
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VISIBILITY, \
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OPT_##GROUP, \
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OPT_##ALIAS, \
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ALIASARGS, \
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VALUES},
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#include "Options.inc"
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#undef OPTION
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};
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namespace {
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class MinGWOptTable : public opt::GenericOptTable {
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public:
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MinGWOptTable()
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: opt::GenericOptTable(OptionStrTable, OptionPrefixesTable, infoTable,
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false) {}
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opt::InputArgList parse(ArrayRef<const char *> argv);
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};
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} // namespace
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static void printHelp(CommonLinkerContext &ctx, const char *argv0) {
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auto &outs = ctx.e.outs();
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MinGWOptTable().printHelp(
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outs, (std::string(argv0) + " [options] file...").c_str(), "lld",
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/*ShowHidden=*/false, /*ShowAllAliases=*/true);
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outs << '\n';
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}
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static cl::TokenizerCallback getQuotingStyle() {
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if (Triple(sys::getProcessTriple()).getOS() == Triple::Win32)
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return cl::TokenizeWindowsCommandLine;
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return cl::TokenizeGNUCommandLine;
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}
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opt::InputArgList MinGWOptTable::parse(ArrayRef<const char *> argv) {
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unsigned missingIndex;
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unsigned missingCount;
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SmallVector<const char *, 256> vec(argv.data(), argv.data() + argv.size());
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cl::ExpandResponseFiles(saver(), getQuotingStyle(), vec);
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opt::InputArgList args = this->ParseArgs(vec, missingIndex, missingCount);
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if (missingCount)
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error(StringRef(args.getArgString(missingIndex)) + ": missing argument");
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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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// Find a file by concatenating given paths.
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static std::optional<std::string> findFile(StringRef path1,
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const Twine &path2) {
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SmallString<128> s;
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sys::path::append(s, path1, path2);
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if (sys::fs::exists(s))
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return std::string(s);
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return std::nullopt;
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}
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// This is for -lfoo. We'll look for libfoo.dll.a or libfoo.a from search paths.
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static std::string
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searchLibrary(StringRef name, ArrayRef<StringRef> searchPaths, bool bStatic) {
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if (name.starts_with(":")) {
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for (StringRef dir : searchPaths)
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if (std::optional<std::string> s = findFile(dir, name.substr(1)))
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return *s;
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error("unable to find library -l" + name);
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return "";
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}
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for (StringRef dir : searchPaths) {
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if (!bStatic) {
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if (std::optional<std::string> s = findFile(dir, "lib" + name + ".dll.a"))
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return *s;
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if (std::optional<std::string> s = findFile(dir, name + ".dll.a"))
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return *s;
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}
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if (std::optional<std::string> s = findFile(dir, "lib" + name + ".a"))
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return *s;
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if (std::optional<std::string> s = findFile(dir, name + ".lib"))
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return *s;
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if (!bStatic) {
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if (std::optional<std::string> s = findFile(dir, "lib" + name + ".dll"))
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return *s;
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if (std::optional<std::string> s = findFile(dir, name + ".dll"))
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return *s;
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}
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}
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error("unable to find library -l" + name);
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return "";
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}
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namespace lld {
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namespace coff {
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bool link(ArrayRef<const char *> argsArr, llvm::raw_ostream &stdoutOS,
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llvm::raw_ostream &stderrOS, bool exitEarly, bool disableOutput);
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}
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namespace mingw {
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// Convert Unix-ish command line arguments to Windows-ish ones and
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// then call coff::link.
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bool link(ArrayRef<const char *> argsArr, llvm::raw_ostream &stdoutOS,
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llvm::raw_ostream &stderrOS, bool exitEarly, bool disableOutput) {
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auto *ctx = new CommonLinkerContext;
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ctx->e.initialize(stdoutOS, stderrOS, exitEarly, disableOutput);
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MinGWOptTable parser;
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opt::InputArgList args = parser.parse(argsArr.slice(1));
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if (errorCount())
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return false;
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if (args.hasArg(OPT_help)) {
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printHelp(*ctx, argsArr[0]);
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return true;
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}
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// A note about "compatible with GNU linkers" message: this is a hack for
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// scripts generated by GNU Libtool 2.4.6 (released in February 2014 and
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// still the newest version in March 2017) or earlier to recognize LLD as
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// a GNU compatible linker. As long as an output for the -v option
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// contains "GNU" or "with BFD", they recognize us as GNU-compatible.
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if (args.hasArg(OPT_v) || args.hasArg(OPT_version))
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message(getLLDVersion() + " (compatible with GNU linkers)");
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// The behavior of -v or --version is a bit strange, but this is
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// needed for compatibility with GNU linkers.
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if (args.hasArg(OPT_v) && !args.hasArg(OPT_INPUT) && !args.hasArg(OPT_l))
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return true;
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if (args.hasArg(OPT_version))
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return true;
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if (!args.hasArg(OPT_INPUT) && !args.hasArg(OPT_l)) {
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error("no input files");
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return false;
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}
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std::vector<std::string> linkArgs;
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auto add = [&](const Twine &s) { linkArgs.push_back(s.str()); };
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add("lld-link");
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add("-lldmingw");
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if (auto *a = args.getLastArg(OPT_entry)) {
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StringRef s = a->getValue();
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if (args.getLastArgValue(OPT_m) == "i386pe" && s.starts_with("_"))
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add("-entry:" + s.substr(1));
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else if (!s.empty())
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add("-entry:" + s);
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else
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add("-noentry");
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}
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if (args.hasArg(OPT_major_os_version, OPT_minor_os_version,
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OPT_major_subsystem_version, OPT_minor_subsystem_version)) {
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StringRef majOSVer = args.getLastArgValue(OPT_major_os_version, "6");
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StringRef minOSVer = args.getLastArgValue(OPT_minor_os_version, "0");
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StringRef majSubSysVer = "6";
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StringRef minSubSysVer = "0";
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StringRef subSysName = "default";
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StringRef subSysVer;
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// Iterate over --{major,minor}-subsystem-version and --subsystem, and pick
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// the version number components from the last one of them that specifies
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// a version.
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for (auto *a : args.filtered(OPT_major_subsystem_version,
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OPT_minor_subsystem_version, OPT_subs)) {
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switch (a->getOption().getID()) {
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case OPT_major_subsystem_version:
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majSubSysVer = a->getValue();
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break;
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case OPT_minor_subsystem_version:
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minSubSysVer = a->getValue();
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break;
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case OPT_subs:
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std::tie(subSysName, subSysVer) = StringRef(a->getValue()).split(':');
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if (!subSysVer.empty()) {
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if (subSysVer.contains('.'))
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std::tie(majSubSysVer, minSubSysVer) = subSysVer.split('.');
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else
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majSubSysVer = subSysVer;
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}
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break;
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}
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}
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add("-osversion:" + majOSVer + "." + minOSVer);
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add("-subsystem:" + subSysName + "," + majSubSysVer + "." + minSubSysVer);
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} else if (args.hasArg(OPT_subs)) {
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StringRef subSys = args.getLastArgValue(OPT_subs, "default");
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StringRef subSysName, subSysVer;
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std::tie(subSysName, subSysVer) = subSys.split(':');
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StringRef sep = subSysVer.empty() ? "" : ",";
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add("-subsystem:" + subSysName + sep + subSysVer);
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}
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if (auto *a = args.getLastArg(OPT_out_implib))
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add("-implib:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_stack))
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add("-stack:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_output_def))
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add("-output-def:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_image_base))
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add("-base:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_map))
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add("-lldmap:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_reproduce))
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add("-reproduce:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_file_alignment))
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add("-filealign:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_section_alignment))
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add("-align:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_heap))
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add("-heap:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_threads))
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add("-threads:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_o))
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add("-out:" + StringRef(a->getValue()));
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else if (args.hasArg(OPT_shared))
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add("-out:a.dll");
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else
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add("-out:a.exe");
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if (auto *a = args.getLastArg(OPT_pdb)) {
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add("-debug");
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StringRef v = a->getValue();
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if (!v.empty())
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add("-pdb:" + v);
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if (args.hasArg(OPT_strip_all)) {
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add("-debug:nodwarf,nosymtab");
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} else if (args.hasArg(OPT_strip_debug)) {
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add("-debug:nodwarf,symtab");
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}
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} else if (args.hasArg(OPT_strip_debug)) {
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add("-debug:symtab");
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} else if (!args.hasArg(OPT_strip_all)) {
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add("-debug:dwarf");
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}
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if (auto *a = args.getLastArg(OPT_build_id)) {
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StringRef v = a->getValue();
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if (v == "none")
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add("-build-id:no");
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else {
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if (!v.empty())
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warn("unsupported build id hashing: " + v + ", using default hashing.");
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add("-build-id");
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}
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} else {
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if (args.hasArg(OPT_strip_debug) || args.hasArg(OPT_strip_all))
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add("-build-id:no");
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else
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add("-build-id");
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}
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if (auto *a = args.getLastArg(OPT_functionpadmin)) {
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StringRef v = a->getValue();
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if (v.empty())
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add("-functionpadmin");
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else
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add("-functionpadmin:" + v);
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}
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if (args.hasFlag(OPT_fatal_warnings, OPT_no_fatal_warnings, false))
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add("-WX");
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else
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add("-WX:no");
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if (args.hasFlag(OPT_enable_stdcall_fixup, OPT_disable_stdcall_fixup, false))
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add("-stdcall-fixup");
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else if (args.hasArg(OPT_disable_stdcall_fixup))
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add("-stdcall-fixup:no");
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if (args.hasArg(OPT_shared))
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add("-dll");
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if (args.hasArg(OPT_verbose))
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add("-verbose");
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if (args.hasArg(OPT_exclude_all_symbols))
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add("-exclude-all-symbols");
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if (args.hasArg(OPT_export_all_symbols))
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add("-export-all-symbols");
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if (args.hasArg(OPT_large_address_aware))
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add("-largeaddressaware");
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if (args.hasArg(OPT_kill_at))
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add("-kill-at");
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if (args.hasArg(OPT_appcontainer))
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add("-appcontainer");
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if (args.hasFlag(OPT_no_seh, OPT_disable_no_seh, false))
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add("-noseh");
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if (args.getLastArgValue(OPT_m) != "thumb2pe" &&
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args.getLastArgValue(OPT_m) != "arm64pe" &&
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args.getLastArgValue(OPT_m) != "arm64ecpe" &&
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args.hasFlag(OPT_disable_dynamicbase, OPT_dynamicbase, false))
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add("-dynamicbase:no");
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if (args.hasFlag(OPT_disable_high_entropy_va, OPT_high_entropy_va, false))
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add("-highentropyva:no");
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if (args.hasFlag(OPT_disable_nxcompat, OPT_nxcompat, false))
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add("-nxcompat:no");
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if (args.hasFlag(OPT_disable_tsaware, OPT_tsaware, false))
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add("-tsaware:no");
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if (args.hasFlag(OPT_disable_reloc_section, OPT_enable_reloc_section, false))
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add("-fixed");
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if (args.hasFlag(OPT_no_insert_timestamp, OPT_insert_timestamp, false))
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add("-timestamp:0");
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if (args.hasFlag(OPT_gc_sections, OPT_no_gc_sections, false))
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add("-opt:ref");
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else
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add("-opt:noref");
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if (args.hasFlag(OPT_demangle, OPT_no_demangle, true))
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add("-demangle");
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else
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add("-demangle:no");
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if (args.hasFlag(OPT_enable_auto_import, OPT_disable_auto_import, true))
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add("-auto-import");
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else
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add("-auto-import:no");
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if (args.hasFlag(OPT_enable_runtime_pseudo_reloc,
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OPT_disable_runtime_pseudo_reloc, true))
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add("-runtime-pseudo-reloc");
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else
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add("-runtime-pseudo-reloc:no");
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if (args.hasFlag(OPT_allow_multiple_definition,
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OPT_no_allow_multiple_definition, false))
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add("-force:multiple");
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if (auto *a = args.getLastArg(OPT_dependent_load_flag))
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add("-dependentloadflag:" + StringRef(a->getValue()));
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if (auto *a = args.getLastArg(OPT_icf)) {
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StringRef s = a->getValue();
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if (s == "all")
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add("-opt:icf");
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else if (s == "safe")
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add("-opt:safeicf");
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else if (s == "none")
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add("-opt:noicf");
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else
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error("unknown parameter: --icf=" + s);
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} else {
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add("-opt:noicf");
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}
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if (auto *a = args.getLastArg(OPT_m)) {
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StringRef s = a->getValue();
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if (s == "i386pe")
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add("-machine:x86");
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else if (s == "i386pep")
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add("-machine:x64");
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else if (s == "thumb2pe")
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add("-machine:arm");
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else if (s == "arm64pe")
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add("-machine:arm64");
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else if (s == "arm64ecpe")
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add("-machine:arm64ec");
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else
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error("unknown parameter: -m" + s);
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}
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if (args.hasFlag(OPT_guard_cf, OPT_no_guard_cf, false)) {
|
|
if (args.hasFlag(OPT_guard_longjmp, OPT_no_guard_longjmp, true))
|
|
add("-guard:cf,longjmp");
|
|
else
|
|
add("-guard:cf,nolongjmp");
|
|
} else if (args.hasFlag(OPT_guard_longjmp, OPT_no_guard_longjmp, false)) {
|
|
auto *a = args.getLastArg(OPT_guard_longjmp);
|
|
warn("parameter " + a->getSpelling() +
|
|
" only takes effect when used with --guard-cf");
|
|
}
|
|
|
|
if (auto *a = args.getLastArg(OPT_error_limit)) {
|
|
int n;
|
|
StringRef s = a->getValue();
|
|
if (s.getAsInteger(10, n))
|
|
error(a->getSpelling() + ": number expected, but got " + s);
|
|
else
|
|
add("-errorlimit:" + s);
|
|
}
|
|
|
|
if (auto *a = args.getLastArg(OPT_rpath))
|
|
warn("parameter " + a->getSpelling() + " has no effect on PE/COFF targets");
|
|
|
|
for (auto *a : args.filtered(OPT_mllvm))
|
|
add("-mllvm:" + StringRef(a->getValue()));
|
|
|
|
if (auto *arg = args.getLastArg(OPT_plugin_opt_mcpu_eq))
|
|
add("-mllvm:-mcpu=" + StringRef(arg->getValue()));
|
|
if (auto *arg = args.getLastArg(OPT_lto_O))
|
|
add("-opt:lldlto=" + StringRef(arg->getValue()));
|
|
if (auto *arg = args.getLastArg(OPT_lto_CGO))
|
|
add("-opt:lldltocgo=" + StringRef(arg->getValue()));
|
|
if (auto *arg = args.getLastArg(OPT_plugin_opt_dwo_dir_eq))
|
|
add("-dwodir:" + StringRef(arg->getValue()));
|
|
if (args.hasArg(OPT_lto_cs_profile_generate))
|
|
add("-lto-cs-profile-generate");
|
|
if (auto *arg = args.getLastArg(OPT_lto_cs_profile_file))
|
|
add("-lto-cs-profile-file:" + StringRef(arg->getValue()));
|
|
if (args.hasArg(OPT_plugin_opt_emit_llvm))
|
|
add("-lldemit:llvm");
|
|
if (args.hasArg(OPT_lto_emit_asm))
|
|
add("-lldemit:asm");
|
|
if (auto *arg = args.getLastArg(OPT_lto_sample_profile))
|
|
add("-lto-sample-profile:" + StringRef(arg->getValue()));
|
|
|
|
if (auto *a = args.getLastArg(OPT_thinlto_cache_dir))
|
|
add("-lldltocache:" + StringRef(a->getValue()));
|
|
if (auto *a = args.getLastArg(OPT_thinlto_cache_policy))
|
|
add("-lldltocachepolicy:" + StringRef(a->getValue()));
|
|
if (args.hasArg(OPT_thinlto_emit_imports_files))
|
|
add("-thinlto-emit-imports-files");
|
|
if (args.hasArg(OPT_thinlto_index_only))
|
|
add("-thinlto-index-only");
|
|
if (auto *arg = args.getLastArg(OPT_thinlto_index_only_eq))
|
|
add("-thinlto-index-only:" + StringRef(arg->getValue()));
|
|
if (auto *arg = args.getLastArg(OPT_thinlto_jobs_eq))
|
|
add("-opt:lldltojobs=" + StringRef(arg->getValue()));
|
|
if (auto *arg = args.getLastArg(OPT_thinlto_object_suffix_replace_eq))
|
|
add("-thinlto-object-suffix-replace:" + StringRef(arg->getValue()));
|
|
if (auto *arg = args.getLastArg(OPT_thinlto_prefix_replace_eq))
|
|
add("-thinlto-prefix-replace:" + StringRef(arg->getValue()));
|
|
|
|
for (auto *a : args.filtered(OPT_plugin_opt_eq_minus))
|
|
add("-mllvm:-" + StringRef(a->getValue()));
|
|
|
|
// GCC collect2 passes -plugin-opt=path/to/lto-wrapper with an absolute or
|
|
// relative path. Just ignore. If not ended with "lto-wrapper" (or
|
|
// "lto-wrapper.exe" for GCC cross-compiled for Windows), consider it an
|
|
// unsupported LLVMgold.so option and error.
|
|
for (opt::Arg *arg : args.filtered(OPT_plugin_opt_eq)) {
|
|
StringRef v(arg->getValue());
|
|
if (!v.ends_with("lto-wrapper") && !v.ends_with("lto-wrapper.exe"))
|
|
error(arg->getSpelling() + ": unknown plugin option '" + arg->getValue() +
|
|
"'");
|
|
}
|
|
|
|
for (auto *a : args.filtered(OPT_Xlink))
|
|
add(a->getValue());
|
|
|
|
if (args.getLastArgValue(OPT_m) == "i386pe")
|
|
add("-alternatename:__image_base__=___ImageBase");
|
|
else
|
|
add("-alternatename:__image_base__=__ImageBase");
|
|
|
|
for (auto *a : args.filtered(OPT_require_defined))
|
|
add("-include:" + StringRef(a->getValue()));
|
|
for (auto *a : args.filtered(OPT_undefined_glob))
|
|
add("-includeglob:" + StringRef(a->getValue()));
|
|
for (auto *a : args.filtered(OPT_undefined))
|
|
add("-includeoptional:" + StringRef(a->getValue()));
|
|
for (auto *a : args.filtered(OPT_delayload))
|
|
add("-delayload:" + StringRef(a->getValue()));
|
|
for (auto *a : args.filtered(OPT_wrap))
|
|
add("-wrap:" + StringRef(a->getValue()));
|
|
for (auto *a : args.filtered(OPT_exclude_symbols))
|
|
add("-exclude-symbols:" + StringRef(a->getValue()));
|
|
|
|
std::vector<StringRef> searchPaths;
|
|
for (auto *a : args.filtered(OPT_L)) {
|
|
searchPaths.push_back(a->getValue());
|
|
add("-libpath:" + StringRef(a->getValue()));
|
|
}
|
|
|
|
StringRef prefix = "";
|
|
bool isStatic = false;
|
|
for (auto *a : args) {
|
|
switch (a->getOption().getID()) {
|
|
case OPT_INPUT:
|
|
if (StringRef(a->getValue()).ends_with_insensitive(".def"))
|
|
add("-def:" + StringRef(a->getValue()));
|
|
else
|
|
add(prefix + StringRef(a->getValue()));
|
|
break;
|
|
case OPT_l:
|
|
add(prefix + searchLibrary(a->getValue(), searchPaths, isStatic));
|
|
break;
|
|
case OPT_whole_archive:
|
|
prefix = "-wholearchive:";
|
|
break;
|
|
case OPT_no_whole_archive:
|
|
prefix = "";
|
|
break;
|
|
case OPT_Bstatic:
|
|
isStatic = true;
|
|
break;
|
|
case OPT_Bdynamic:
|
|
isStatic = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (errorCount())
|
|
return false;
|
|
|
|
if (args.hasArg(OPT_verbose) || args.hasArg(OPT__HASH_HASH_HASH))
|
|
ctx->e.errs() << llvm::join(linkArgs, " ") << "\n";
|
|
|
|
if (args.hasArg(OPT__HASH_HASH_HASH))
|
|
return true;
|
|
|
|
// Repack vector of strings to vector of const char pointers for coff::link.
|
|
std::vector<const char *> vec;
|
|
for (const std::string &s : linkArgs)
|
|
vec.push_back(s.c_str());
|
|
// Pass the actual binary name, to make error messages be printed with
|
|
// the right prefix.
|
|
vec[0] = argsArr[0];
|
|
|
|
// The context will be re-created in the COFF driver.
|
|
lld::CommonLinkerContext::destroy();
|
|
|
|
return coff::link(vec, stdoutOS, stderrOS, exitEarly, disableOutput);
|
|
}
|
|
} // namespace mingw
|
|
} // namespace lld
|