1 //===- Config.h -------------------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLD_COFF_CONFIG_H 10 #define LLD_COFF_CONFIG_H 11 12 #include "llvm/ADT/MapVector.h" 13 #include "llvm/ADT/StringMap.h" 14 #include "llvm/ADT/StringRef.h" 15 #include "llvm/Object/COFF.h" 16 #include "llvm/Support/CachePruning.h" 17 #include <cstdint> 18 #include <map> 19 #include <set> 20 #include <string> 21 22 namespace lld { 23 namespace coff { 24 25 using llvm::COFF::IMAGE_FILE_MACHINE_UNKNOWN; 26 using llvm::COFF::WindowsSubsystem; 27 using llvm::StringRef; 28 class DefinedAbsolute; 29 class DefinedRelative; 30 class StringChunk; 31 class Symbol; 32 class InputFile; 33 class SectionChunk; 34 35 // Short aliases. 36 static const auto AMD64 = llvm::COFF::IMAGE_FILE_MACHINE_AMD64; 37 static const auto ARM64 = llvm::COFF::IMAGE_FILE_MACHINE_ARM64; 38 static const auto ARMNT = llvm::COFF::IMAGE_FILE_MACHINE_ARMNT; 39 static const auto I386 = llvm::COFF::IMAGE_FILE_MACHINE_I386; 40 41 // Represents an /export option. 42 struct Export { 43 StringRef name; // N in /export:N or /export:E=N 44 StringRef extName; // E in /export:E=N 45 Symbol *sym = nullptr; 46 uint16_t ordinal = 0; 47 bool noname = false; 48 bool data = false; 49 bool isPrivate = false; 50 bool constant = false; 51 52 // If an export is a form of /export:foo=dllname.bar, that means 53 // that foo should be exported as an alias to bar in the DLL. 54 // forwardTo is set to "dllname.bar" part. Usually empty. 55 StringRef forwardTo; 56 StringChunk *forwardChunk = nullptr; 57 58 // True if this /export option was in .drectves section. 59 bool directives = false; 60 StringRef symbolName; 61 StringRef exportName; // Name in DLL 62 63 bool operator==(const Export &e) { 64 return (name == e.name && extName == e.extName && 65 ordinal == e.ordinal && noname == e.noname && 66 data == e.data && isPrivate == e.isPrivate); 67 } 68 }; 69 70 enum class DebugType { 71 None = 0x0, 72 CV = 0x1, /// CodeView 73 PData = 0x2, /// Procedure Data 74 Fixup = 0x4, /// Relocation Table 75 }; 76 77 enum class GuardCFLevel { 78 Off, 79 NoLongJmp, // Emit gfids but no longjmp tables 80 Full, // Enable all protections. 81 }; 82 83 // Global configuration. 84 struct Configuration { 85 enum ManifestKind { SideBySide, Embed, No }; is64Configuration86 bool is64() { return machine == AMD64 || machine == ARM64; } 87 88 llvm::COFF::MachineTypes machine = IMAGE_FILE_MACHINE_UNKNOWN; 89 size_t wordsize; 90 bool verbose = false; 91 WindowsSubsystem subsystem = llvm::COFF::IMAGE_SUBSYSTEM_UNKNOWN; 92 Symbol *entry = nullptr; 93 bool noEntry = false; 94 std::string outputFile; 95 std::string importName; 96 bool demangle = true; 97 bool doGC = true; 98 bool doICF = true; 99 bool tailMerge; 100 bool relocatable = true; 101 bool forceMultiple = false; 102 bool forceMultipleRes = false; 103 bool forceUnresolved = false; 104 bool debug = false; 105 bool debugDwarf = false; 106 bool debugGHashes = false; 107 bool debugSymtab = false; 108 bool driver = false; 109 bool driverUponly = false; 110 bool driverWdm = false; 111 bool showTiming = false; 112 bool showSummary = false; 113 unsigned debugTypes = static_cast<unsigned>(DebugType::None); 114 std::vector<std::string> natvisFiles; 115 llvm::StringMap<std::string> namedStreams; 116 llvm::SmallString<128> pdbAltPath; 117 llvm::SmallString<128> pdbPath; 118 llvm::SmallString<128> pdbSourcePath; 119 std::vector<llvm::StringRef> argv; 120 121 // Symbols in this set are considered as live by the garbage collector. 122 std::vector<Symbol *> gcroot; 123 124 std::set<std::string> noDefaultLibs; 125 bool noDefaultLibAll = false; 126 127 // True if we are creating a DLL. 128 bool dll = false; 129 StringRef implib; 130 std::vector<Export> exports; 131 bool hadExplicitExports; 132 std::set<std::string> delayLoads; 133 std::map<std::string, int> dllOrder; 134 Symbol *delayLoadHelper = nullptr; 135 136 bool saveTemps = false; 137 138 // /guard:cf 139 GuardCFLevel guardCF = GuardCFLevel::Off; 140 141 // Used for SafeSEH. 142 bool safeSEH = false; 143 Symbol *sehTable = nullptr; 144 Symbol *sehCount = nullptr; 145 bool noSEH = false; 146 147 // Used for /opt:lldlto=N 148 unsigned ltoo = 2; 149 150 // Used for /opt:lldltojobs=N 151 std::string thinLTOJobs; 152 // Used for /opt:lldltopartitions=N 153 unsigned ltoPartitions = 1; 154 155 // Used for /opt:lldltocache=path 156 StringRef ltoCache; 157 // Used for /opt:lldltocachepolicy=policy 158 llvm::CachePruningPolicy ltoCachePolicy; 159 160 // Used for /opt:[no]ltonewpassmanager 161 bool ltoNewPassManager = false; 162 // Used for /opt:[no]ltodebugpassmanager 163 bool ltoDebugPassManager = false; 164 165 // Used for /merge:from=to (e.g. /merge:.rdata=.text) 166 std::map<StringRef, StringRef> merge; 167 168 // Used for /section=.name,{DEKPRSW} to set section attributes. 169 std::map<StringRef, uint32_t> section; 170 171 // Options for manifest files. 172 ManifestKind manifest = No; 173 int manifestID = 1; 174 StringRef manifestDependency; 175 bool manifestUAC = true; 176 std::vector<std::string> manifestInput; 177 StringRef manifestLevel = "'asInvoker'"; 178 StringRef manifestUIAccess = "'false'"; 179 StringRef manifestFile; 180 181 // Used for /aligncomm. 182 std::map<std::string, int> alignComm; 183 184 // Used for /failifmismatch. 185 std::map<StringRef, std::pair<StringRef, InputFile *>> mustMatch; 186 187 // Used for /alternatename. 188 std::map<StringRef, StringRef> alternateNames; 189 190 // Used for /order. 191 llvm::StringMap<int> order; 192 193 // Used for /lldmap. 194 std::string lldmapFile; 195 196 // Used for /map. 197 std::string mapFile; 198 199 // Used for /thinlto-index-only: 200 llvm::StringRef thinLTOIndexOnlyArg; 201 202 // Used for /thinlto-object-prefix-replace: 203 std::pair<llvm::StringRef, llvm::StringRef> thinLTOPrefixReplace; 204 205 // Used for /thinlto-object-suffix-replace: 206 std::pair<llvm::StringRef, llvm::StringRef> thinLTOObjectSuffixReplace; 207 208 // Used for /lto-obj-path: 209 llvm::StringRef ltoObjPath; 210 211 // Used for /call-graph-ordering-file: 212 llvm::MapVector<std::pair<const SectionChunk *, const SectionChunk *>, 213 uint64_t> 214 callGraphProfile; 215 bool callGraphProfileSort = false; 216 217 // Used for /print-symbol-order: 218 StringRef printSymbolOrder; 219 220 uint64_t align = 4096; 221 uint64_t imageBase = -1; 222 uint64_t fileAlign = 512; 223 uint64_t stackReserve = 1024 * 1024; 224 uint64_t stackCommit = 4096; 225 uint64_t heapReserve = 1024 * 1024; 226 uint64_t heapCommit = 4096; 227 uint32_t majorImageVersion = 0; 228 uint32_t minorImageVersion = 0; 229 // If changing the default os/subsys version here, update the default in 230 // the MinGW driver accordingly. 231 uint32_t majorOSVersion = 6; 232 uint32_t minorOSVersion = 0; 233 uint32_t majorSubsystemVersion = 6; 234 uint32_t minorSubsystemVersion = 0; 235 uint32_t timestamp = 0; 236 uint32_t functionPadMin = 0; 237 bool dynamicBase = true; 238 bool allowBind = true; 239 bool cetCompat = false; 240 bool nxCompat = true; 241 bool allowIsolation = true; 242 bool terminalServerAware = true; 243 bool largeAddressAware = false; 244 bool highEntropyVA = false; 245 bool appContainer = false; 246 bool mingw = false; 247 bool warnMissingOrderSymbol = true; 248 bool warnLocallyDefinedImported = true; 249 bool warnDebugInfoUnusable = true; 250 bool warnLongSectionNames = true; 251 bool incremental = true; 252 bool integrityCheck = false; 253 bool killAt = false; 254 bool repro = false; 255 bool swaprunCD = false; 256 bool swaprunNet = false; 257 bool thinLTOEmitImportsFiles; 258 bool thinLTOIndexOnly; 259 bool autoImport = false; 260 bool pseudoRelocs = false; 261 }; 262 263 extern Configuration *config; 264 265 } // namespace coff 266 } // namespace lld 267 268 #endif 269