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 "Config.h" 13#include "llvm/ADT/StringRef.h" 14#include <cstdint> 15 16namespace lld::elf { 17class InputFile; 18class OutputSection; 19void copySectionsIntoPartitions(); 20template <class ELFT> void createSyntheticSections(); 21template <class ELFT> void writeResult(); 22 23// This describes a program header entry. 24// Each contains type, access flags and range of output sections that will be 25// placed in it. 26struct PhdrEntry { 27 PhdrEntry(unsigned type, unsigned flags) 28 : p_align(type == llvm::ELF::PT_LOAD ? config->maxPageSize : 0), 29 p_type(type), p_flags(flags) {} 30 void add(OutputSection *sec); 31 32 uint64_t p_paddr = 0; 33 uint64_t p_vaddr = 0; 34 uint64_t p_memsz = 0; 35 uint64_t p_filesz = 0; 36 uint64_t p_offset = 0; 37 uint32_t p_align = 0; 38 uint32_t p_type = 0; 39 uint32_t p_flags = 0; 40 41 OutputSection *firstSec = nullptr; 42 OutputSection *lastSec = nullptr; 43 bool hasLMA = false; 44 45 uint64_t lmaOffset = 0; 46}; 47 48void addReservedSymbols(); 49bool includeInSymtab(const Symbol &b); 50 51template <class ELFT> uint32_t calcMipsEFlags(); 52 53uint8_t getMipsFpAbiFlag(uint8_t oldFlag, uint8_t newFlag, 54 llvm::StringRef fileName); 55 56bool isMipsN32Abi(const InputFile *f); 57bool isMicroMips(); 58bool isMipsR6(); 59 60bool hasMemtag(); 61bool canHaveMemtagGlobals(); 62} // namespace lld::elf 63 64#endif 65