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//===- Config.h -------------------------------------------------*- C++ -*-===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_COFF_CONFIG_H
#define LLD_COFF_CONFIG_H
#include "llvm/ADT/StringRef.h"
#include "llvm/Object/COFF.h"
#include <cstdint>
#include <map>
#include <set>
#include <string>
namespace lld {
namespace coff {
using llvm::COFF::IMAGE_FILE_MACHINE_UNKNOWN;
using llvm::COFF::WindowsSubsystem;
using llvm::StringRef;
class DefinedAbsolute;
class DefinedRelative;
class StringChunk;
struct Symbol;
class SymbolBody;
// Short aliases.
static const auto AMD64 = llvm::COFF::IMAGE_FILE_MACHINE_AMD64;
static const auto ARM64 = llvm::COFF::IMAGE_FILE_MACHINE_ARM64;
static const auto ARMNT = llvm::COFF::IMAGE_FILE_MACHINE_ARMNT;
static const auto I386 = llvm::COFF::IMAGE_FILE_MACHINE_I386;
// Represents an /export option.
struct Export {
StringRef Name; // N in /export:N or /export:E=N
StringRef ExtName; // E in /export:E=N
SymbolBody *Sym = nullptr;
uint16_t Ordinal = 0;
bool Noname = false;
bool Data = false;
bool Private = false;
bool Constant = false;
// If an export is a form of /export:foo=dllname.bar, that means
// that foo should be exported as an alias to bar in the DLL.
// ForwardTo is set to "dllname.bar" part. Usually empty.
StringRef ForwardTo;
StringChunk *ForwardChunk = nullptr;
// True if this /export option was in .drectves section.
bool Directives = false;
StringRef SymbolName;
StringRef ExportName; // Name in DLL
bool operator==(const Export &E) {
return (Name == E.Name && ExtName == E.ExtName &&
Ordinal == E.Ordinal && Noname == E.Noname &&
Data == E.Data && Private == E.Private);
}
};
enum class DebugType {
None = 0x0,
CV = 0x1, /// CodeView
PData = 0x2, /// Procedure Data
Fixup = 0x4, /// Relocation Table
};
// Global configuration.
struct Configuration {
enum ManifestKind { SideBySide, Embed, No };
bool is64() { return Machine == AMD64 || Machine == ARM64; }
llvm::COFF::MachineTypes Machine = IMAGE_FILE_MACHINE_UNKNOWN;
bool Verbose = false;
WindowsSubsystem Subsystem = llvm::COFF::IMAGE_SUBSYSTEM_UNKNOWN;
SymbolBody *Entry = nullptr;
bool NoEntry = false;
std::string OutputFile;
std::string ImportName;
bool ColorDiagnostics;
bool DoGC = true;
bool DoICF = true;
uint64_t ErrorLimit = 20;
bool Relocatable = true;
bool Force = false;
bool Debug = false;
bool WriteSymtab = true;
unsigned DebugTypes = static_cast<unsigned>(DebugType::None);
llvm::SmallString<128> PDBPath;
std::vector<llvm::StringRef> Argv;
// Symbols in this set are considered as live by the garbage collector.
std::set<SymbolBody *> GCRoot;
std::set<StringRef> NoDefaultLibs;
bool NoDefaultLibAll = false;
// True if we are creating a DLL.
bool DLL = false;
StringRef Implib;
std::vector<Export> Exports;
std::set<std::string> DelayLoads;
std::map<std::string, int> DLLOrder;
SymbolBody *DelayLoadHelper = nullptr;
bool SaveTemps = false;
// Used for SafeSEH.
Symbol *SEHTable = nullptr;
Symbol *SEHCount = nullptr;
// Used for /opt:lldlto=N
unsigned LTOOptLevel = 2;
// Used for /opt:lldltojobs=N
unsigned LTOJobs = 0;
// Used for /opt:lldltopartitions=N
unsigned LTOPartitions = 1;
// Used for /merge:from=to (e.g. /merge:.rdata=.text)
std::map<StringRef, StringRef> Merge;
// Used for /section=.name,{DEKPRSW} to set section attributes.
std::map<StringRef, uint32_t> Section;
// Options for manifest files.
ManifestKind Manifest = No;
int ManifestID = 1;
StringRef ManifestDependency;
bool ManifestUAC = true;
std::vector<std::string> ManifestInput;
StringRef ManifestLevel = "'asInvoker'";
StringRef ManifestUIAccess = "'false'";
StringRef ManifestFile;
// Used for /failifmismatch.
std::map<StringRef, StringRef> MustMatch;
// Used for /alternatename.
std::map<StringRef, StringRef> AlternateNames;
// Used for /lldmap.
std::string MapFile;
uint64_t ImageBase = -1;
uint64_t StackReserve = 1024 * 1024;
uint64_t StackCommit = 4096;
uint64_t HeapReserve = 1024 * 1024;
uint64_t HeapCommit = 4096;
uint32_t MajorImageVersion = 0;
uint32_t MinorImageVersion = 0;
uint32_t MajorOSVersion = 6;
uint32_t MinorOSVersion = 0;
bool DynamicBase = true;
bool NxCompat = true;
bool AllowIsolation = true;
bool TerminalServerAware = true;
bool LargeAddressAware = false;
bool HighEntropyVA = false;
bool AppContainer = false;
};
extern Configuration *Config;
} // namespace coff
} // namespace lld
#endif
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