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//===- Driver.h -------------------------------------------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "lld/Common/LLVM.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Option/OptTable.h"
#include "llvm/Support/MemoryBuffer.h"
#include <set>
#include <type_traits>
namespace llvm {
namespace MachO {
class InterfaceFile;
enum class PlatformKind : unsigned;
} // namespace MachO
} // namespace llvm
namespace lld {
namespace macho {
class DylibFile;
class InputFile;
class MachOOptTable : public llvm::opt::OptTable {
llvm::opt::InputArgList parse(ArrayRef<const char *> argv);
void printHelp(const char *argv0, bool showHidden) const;
// Create enum with OPT_xxx values for each option in
enum {
#define OPTION(_1, _2, ID, _4, _5, _6, _7, _8, _9, _10, _11, _12) OPT_##ID,
#include ""
#undef OPTION
void parseLCLinkerOption(InputFile *, unsigned argc, StringRef data);
std::string createResponseFile(const llvm::opt::InputArgList &args);
// Check for both libfoo.dylib and libfoo.tbd (in that order).
llvm::Optional<std::string> resolveDylibPath(llvm::StringRef path);
DylibFile *loadDylib(llvm::MemoryBufferRef mbref, DylibFile *umbrella = nullptr,
bool isBundleLoader = false);
// Search for all possible combinations of `{root}/{name}.{extension}`.
// If \p extensions are not specified, then just search for `{root}/{name}`.
findPathCombination(const llvm::Twine &name,
const std::vector<llvm::StringRef> &roots,
ArrayRef<llvm::StringRef> extensions = {""});
// If -syslibroot is specified, absolute paths to non-object files may be
// rerooted.
llvm::StringRef rerootPath(llvm::StringRef path);
uint32_t getModTime(llvm::StringRef path);
void printArchiveMemberLoad(StringRef reason, const InputFile *);
// Map simulator platforms to their underlying device platform.
llvm::MachO::PlatformKind removeSimulator(llvm::MachO::PlatformKind platform);
// Helper class to export dependency info.
class DependencyTracker {
explicit DependencyTracker(llvm::StringRef path);
// Adds the given path to the set of not-found files.
inline void logFileNotFound(const Twine &path) {
if (active)
// Writes the dependencies to specified path.
// The content is sorted by its Op Code, then within each section,
// alphabetical order.
void write(llvm::StringRef version,
const llvm::SetVector<InputFile *> &inputs,
llvm::StringRef output);
enum DepOpCode : uint8_t {
// Denotes the linker version.
Version = 0x00,
// Denotes the input files.
Input = 0x10,
// Denotes the files that do not exist(?)
NotFound = 0x11,
// Denotes the output files.
Output = 0x40,
const llvm::StringRef path;
bool active;
// The paths need to be alphabetically ordered.
// We need to own the paths because some of them are temporarily
// constructed.
std::set<std::string> notFounds;
extern DependencyTracker *depTracker;
} // namespace macho
} // namespace lld