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lld/ELF/InputSection.h
| //===- InputSection.h -------------------------------------------*- C++ -*-===// | //===- InputSection.h -------------------------------------------*- C++ -*-===// | ||||
| // | // | ||||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||||
| // See https://llvm.org/LICENSE.txt for license information. | // See https://llvm.org/LICENSE.txt for license information. | ||||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||||
| // | // | ||||
| //===----------------------------------------------------------------------===// | //===----------------------------------------------------------------------===// | ||||
| #ifndef LLD_ELF_INPUT_SECTION_H | #ifndef LLD_ELF_INPUT_SECTION_H | ||||
| #define LLD_ELF_INPUT_SECTION_H | #define LLD_ELF_INPUT_SECTION_H | ||||
| #include "Config.h" | |||||
| #include "Relocations.h" | #include "Relocations.h" | ||||
| #include "lld/Common/CommonLinkerContext.h" | #include "lld/Common/CommonLinkerContext.h" | ||||
| #include "lld/Common/LLVM.h" | #include "lld/Common/LLVM.h" | ||||
| #include "lld/Common/Memory.h" | #include "lld/Common/Memory.h" | ||||
| #include "llvm/ADT/CachedHashString.h" | #include "llvm/ADT/CachedHashString.h" | ||||
| #include "llvm/ADT/DenseSet.h" | #include "llvm/ADT/DenseSet.h" | ||||
| #include "llvm/ADT/TinyPtrVector.h" | #include "llvm/ADT/TinyPtrVector.h" | ||||
| #include "llvm/Object/ELF.h" | #include "llvm/Object/ELF.h" | ||||
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| private: | private: | ||||
| void splitStrings(StringRef s, size_t size); | void splitStrings(StringRef s, size_t size); | ||||
| void splitNonStrings(ArrayRef<uint8_t> a, size_t size); | void splitNonStrings(ArrayRef<uint8_t> a, size_t size); | ||||
| }; | }; | ||||
| struct EhSectionPiece { | struct EhSectionPiece { | ||||
| EhSectionPiece(size_t off, InputSectionBase *sec, uint32_t size, | EhSectionPiece(size_t off, InputSectionBase *sec, uint32_t size, | ||||
| unsigned firstRelocation) | unsigned firstRelocation) | ||||
| : inputOff(off), sec(sec), size(size), firstRelocation(firstRelocation) {} | : inputOff(off), sec(sec), size(size), live(!config->gcSections), | ||||
| firstRelocation(firstRelocation) {} | |||||
| ArrayRef<uint8_t> data() const { | ArrayRef<uint8_t> data() const { | ||||
| return {sec->content().data() + this->inputOff, size}; | return {sec->content().data() + this->inputOff, size}; | ||||
| } | } | ||||
| size_t inputOff; | size_t inputOff; | ||||
| ssize_t outputOff = -1; | ssize_t outputOff = -1; | ||||
| InputSectionBase *sec; | InputSectionBase *sec; | ||||
| uint32_t size; | uint32_t size : 31; | ||||
| uint32_t live : 1; | |||||
| unsigned firstRelocation; | unsigned firstRelocation; | ||||
| }; | }; | ||||
| // This corresponds to a .eh_frame section of an input file. | // This corresponds to a .eh_frame section of an input file. | ||||
| class EhInputSection : public InputSectionBase { | class EhInputSection : public InputSectionBase { | ||||
| public: | public: | ||||
| template <class ELFT> | template <class ELFT> | ||||
| EhInputSection(ObjFile<ELFT> &f, const typename ELFT::Shdr &header, | EhInputSection(ObjFile<ELFT> &f, const typename ELFT::Shdr &header, | ||||
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