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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 "lld/Common/LLVM.h"
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14
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15 #include <limits>
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16 #include <vector>
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17
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18 namespace lld {
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19 namespace macho {
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20
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21 namespace segment_names {
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22
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23 constexpr const char dataConst[] = "__DATA_CONST";
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24 constexpr const char dataDirty[] = "__DATA_DIRTY";
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25 constexpr const char data[] = "__DATA";
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26 constexpr const char dwarf[] = "__DWARF";
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27 constexpr const char import[] = "__IMPORT";
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28 constexpr const char ld[] = "__LD"; // output only with -r
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29 constexpr const char linkEdit[] = "__LINKEDIT";
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30 constexpr const char llvm[] = "__LLVM";
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31 constexpr const char pageZero[] = "__PAGEZERO";
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32 constexpr const char textExec[] = "__TEXT_EXEC";
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33 constexpr const char text[] = "__TEXT";
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34
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35 } // namespace segment_names
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36
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37 class OutputSection;
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38 class InputSection;
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39
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40 class OutputSegment {
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41 public:
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42 const OutputSection *firstSection() const { return sections.front(); }
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43 const OutputSection *lastSection() const { return sections.back(); }
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44
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45 void addOutputSection(OutputSection *os);
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46 void sortOutputSections();
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47
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48 const std::vector<OutputSection *> &getSections() const { return sections; }
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49 size_t numNonHiddenSections() const;
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50
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51 uint64_t fileOff = 0;
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52 uint64_t fileSize = 0;
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53 uint64_t vmSize = 0;
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54 int inputOrder = std::numeric_limits<int>::max();
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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 uint8_t index;
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59
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60 private:
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61 std::vector<OutputSection *> sections;
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62 };
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63
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64 extern std::vector<OutputSegment *> outputSegments;
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65
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66 void sortOutputSegments();
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67
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68 OutputSegment *getOrCreateOutputSegment(StringRef name);
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69
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70 } // namespace macho
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71 } // namespace lld
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72
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73 #endif
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