forked from OSchip/llvm-project
145 lines
4.3 KiB
C++
145 lines
4.3 KiB
C++
//===- Config.h -------------------------------------------------*- C++ -*-===//
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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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#ifndef LLD_MACHO_CONFIG_H
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#define LLD_MACHO_CONFIG_H
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#include "llvm/ADT/CachedHashString.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/DenseSet.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/BinaryFormat/MachO.h"
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#include "llvm/Support/GlobPattern.h"
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#include "llvm/Support/VersionTuple.h"
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#include "llvm/TextAPI/Architecture.h"
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#include "llvm/TextAPI/Platform.h"
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#include "llvm/TextAPI/Target.h"
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#include <vector>
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namespace lld {
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namespace macho {
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class Symbol;
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struct SymbolPriorityEntry;
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using NamePair = std::pair<llvm::StringRef, llvm::StringRef>;
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using SectionRenameMap = llvm::DenseMap<NamePair, NamePair>;
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using SegmentRenameMap = llvm::DenseMap<llvm::StringRef, llvm::StringRef>;
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struct PlatformInfo {
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llvm::VersionTuple minimum;
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llvm::VersionTuple sdk;
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};
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enum class NamespaceKind {
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twolevel,
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flat,
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};
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enum class UndefinedSymbolTreatment {
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unknown,
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error,
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warning,
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suppress,
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dynamic_lookup,
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};
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struct SegmentProtection {
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llvm::StringRef name;
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uint32_t maxProt;
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uint32_t initProt;
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};
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class SymbolPatterns {
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public:
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// GlobPattern can also match literals,
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// but we prefer the O(1) lookup of DenseSet.
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llvm::DenseSet<llvm::CachedHashStringRef> literals;
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std::vector<llvm::GlobPattern> globs;
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bool empty() const { return literals.empty() && globs.empty(); }
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void clear();
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void insert(llvm::StringRef symbolName);
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bool matchLiteral(llvm::StringRef symbolName) const;
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bool matchGlob(llvm::StringRef symbolName) const;
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bool match(llvm::StringRef symbolName) const;
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};
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struct Configuration {
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Symbol *entry;
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bool hasReexports = false;
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bool allLoad = false;
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bool forceLoadObjC = false;
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bool staticLink = false;
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bool implicitDylibs = false;
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bool isPic = false;
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bool headerPadMaxInstallNames = false;
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bool ltoNewPassManager = LLVM_ENABLE_NEW_PASS_MANAGER;
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bool markDeadStrippableDylib = false;
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bool printEachFile = false;
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bool printWhyLoad = false;
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bool searchDylibsFirst = false;
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bool saveTemps = false;
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bool adhocCodesign = false;
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bool emitFunctionStarts = false;
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bool timeTraceEnabled = false;
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uint32_t headerPad;
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uint32_t dylibCompatibilityVersion = 0;
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uint32_t dylibCurrentVersion = 0;
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uint32_t timeTraceGranularity = 500;
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std::string progName;
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llvm::StringRef installName;
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llvm::StringRef mapFile;
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llvm::StringRef outputFile;
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llvm::StringRef ltoObjPath;
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bool demangle = false;
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llvm::MachO::Target target;
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PlatformInfo platformInfo;
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NamespaceKind namespaceKind = NamespaceKind::twolevel;
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UndefinedSymbolTreatment undefinedSymbolTreatment =
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UndefinedSymbolTreatment::error;
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llvm::MachO::HeaderFileType outputType;
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std::vector<llvm::StringRef> systemLibraryRoots;
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std::vector<llvm::StringRef> librarySearchPaths;
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std::vector<llvm::StringRef> frameworkSearchPaths;
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std::vector<llvm::StringRef> runtimePaths;
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std::vector<Symbol *> explicitUndefineds;
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// There are typically very few custom segmentProtections, so use a vector
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// instead of a map.
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std::vector<SegmentProtection> segmentProtections;
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llvm::DenseMap<llvm::StringRef, SymbolPriorityEntry> priorities;
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SectionRenameMap sectionRenameMap;
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SegmentRenameMap segmentRenameMap;
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SymbolPatterns exportedSymbols;
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SymbolPatterns unexportedSymbols;
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};
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// The symbol with the highest priority should be ordered first in the output
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// section (modulo input section contiguity constraints). Using priority
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// (highest first) instead of order (lowest first) has the convenient property
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// that the default-constructed zero priority -- for symbols/sections without a
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// user-defined order -- naturally ends up putting them at the end of the
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// output.
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struct SymbolPriorityEntry {
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// The priority given to a matching symbol, regardless of which object file
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// it originated from.
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size_t anyObjectFile = 0;
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// The priority given to a matching symbol from a particular object file.
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llvm::DenseMap<llvm::StringRef, size_t> objectFiles;
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};
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extern Configuration *config;
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} // namespace macho
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} // namespace lld
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#endif
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