| 1 | //===- OutputSegment.h ------------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #ifndef LLD_MACHO_OUTPUT_SEGMENT_H |
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| 10 | #define LLD_MACHO_OUTPUT_SEGMENT_H |
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| 11 | |
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| 12 | #include "OutputSection.h" |
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| 13 | #include "Symbols.h" |
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| 14 | #include "lld/Common/LLVM.h" |
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| 15 | #include "llvm/ADT/TinyPtrVector.h" |
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| 16 | |
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| 17 | #include <limits> |
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| 18 | #include <vector> |
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| 19 | |
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| 20 | namespace lld::macho { |
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| 21 | |
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| 22 | namespace segment_names { |
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| 23 | |
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| 24 | constexpr const char dataConst[] = "__DATA_CONST" ; |
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| 25 | constexpr const char dataDirty[] = "__DATA_DIRTY" ; |
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| 26 | constexpr const char data[] = "__DATA" ; |
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| 27 | constexpr const char dwarf[] = "__DWARF" ; |
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| 28 | constexpr const char import[] = "__IMPORT" ; |
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| 29 | constexpr const char ld[] = "__LD" ; // output only with -r |
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| 30 | constexpr const char linkEdit[] = "__LINKEDIT" ; |
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| 31 | constexpr const char llvm[] = "__LLVM" ; |
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| 32 | constexpr const char pageZero[] = "__PAGEZERO" ; |
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| 33 | constexpr const char textExec[] = "__TEXT_EXEC" ; |
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| 34 | constexpr const char text[] = "__TEXT" ; |
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| 35 | |
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| 36 | } // namespace segment_names |
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| 37 | |
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| 38 | class OutputSection; |
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| 39 | class InputSection; |
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| 40 | |
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| 41 | class OutputSegment { |
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| 42 | public: |
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| 43 | void addOutputSection(OutputSection *os); |
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| 44 | void sortOutputSections(); |
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| 45 | void assignAddressesToStartEndSymbols(); |
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| 46 | |
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| 47 | const std::vector<OutputSection *> &getSections() const { return sections; } |
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| 48 | size_t numNonHiddenSections() const; |
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| 49 | |
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| 50 | uint64_t fileOff = 0; |
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| 51 | uint64_t fileSize = 0; |
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| 52 | uint64_t addr = 0; |
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| 53 | uint64_t vmSize = 0; |
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| 54 | int inputOrder = UnspecifiedInputOrder; |
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| 55 | StringRef name; |
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| 56 | uint32_t maxProt = 0; |
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| 57 | uint32_t initProt = 0; |
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| 58 | uint32_t flags = 0; |
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| 59 | uint8_t index; |
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| 60 | |
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| 61 | llvm::TinyPtrVector<Defined *> segmentStartSymbols; |
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| 62 | llvm::TinyPtrVector<Defined *> segmentEndSymbols; |
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| 63 | |
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| 64 | private: |
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| 65 | std::vector<OutputSection *> sections; |
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| 66 | }; |
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| 67 | |
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| 68 | extern std::vector<OutputSegment *> outputSegments; |
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| 69 | |
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| 70 | void sortOutputSegments(); |
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| 71 | void resetOutputSegments(); |
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| 72 | |
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| 73 | OutputSegment *getOrCreateOutputSegment(StringRef name); |
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| 74 | |
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| 75 | } // namespace lld::macho |
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| 76 | |
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| 77 | #endif |
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| 78 | |
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