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