1 //===- Writer.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_ELF_WRITER_H 10 #define LLD_ELF_WRITER_H 11 12 #include "llvm/ADT/ArrayRef.h" 13 #include "llvm/ADT/StringRef.h" 14 #include <cstdint> 15 #include <memory> 16 17 namespace lld { 18 namespace elf { 19 class InputFile; 20 class OutputSection; 21 class InputSectionBase; 22 template <class ELFT> void writeResult(); 23 24 // This describes a program header entry. 25 // Each contains type, access flags and range of output sections that will be 26 // placed in it. 27 struct PhdrEntry { 28 PhdrEntry(unsigned type, unsigned flags) : p_type(type), p_flags(flags) {} 29 void add(OutputSection *sec); 30 31 uint64_t p_paddr = 0; 32 uint64_t p_vaddr = 0; 33 uint64_t p_memsz = 0; 34 uint64_t p_filesz = 0; 35 uint64_t p_offset = 0; 36 uint32_t p_align = 0; 37 uint32_t p_type = 0; 38 uint32_t p_flags = 0; 39 40 OutputSection *firstSec = nullptr; 41 OutputSection *lastSec = nullptr; 42 bool hasLMA = false; 43 44 uint64_t lmaOffset = 0; 45 }; 46 47 void addReservedSymbols(); 48 llvm::StringRef getOutputSectionName(const InputSectionBase *s); 49 50 template <class ELFT> uint32_t calcMipsEFlags(); 51 52 uint8_t getMipsFpAbiFlag(uint8_t oldFlag, uint8_t newFlag, 53 llvm::StringRef fileName); 54 55 bool isMipsN32Abi(const InputFile *f); 56 bool isMicroMips(); 57 bool isMipsR6(); 58 } // namespace elf 59 } // namespace lld 60 61 #endif 62