/* SPDX-License-Identifier: GPL-2.0-or-later *//* * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com> */ #ifndef _OBJTOOL_ELF_H#define _OBJTOOL_ELF_H #include <stdio.h>#include <gelf.h>#include <linux/list.h>#include <linux/hashtable.h> #ifdef LIBELF_USE_DEPRECATED# define elf_getshdrnum    elf_getshnum# define elf_getshdrstrndx elf_getshstrndx#endif /* * Fallback for systems without this "read, mmaping if possible" cmd. */#ifndef ELF_C_READ_MMAP#define ELF_C_READ_MMAP ELF_C_READ#endif struct section {	struct list_head list;	GElf_Shdr sh;	struct list_head symbol_list;	DECLARE_HASHTABLE(symbol_hash, 8);	struct list_head rela_list;	DECLARE_HASHTABLE(rela_hash, 16);	struct section *base, *rela;	struct symbol *sym;	Elf_Data *data;	char *name;	int idx;	unsigned int len;	bool changed, text, rodata;}; struct symbol {	struct list_head list;	struct hlist_node hash;	GElf_Sym sym;	struct section *sec;	char *name;	unsigned int idx;	unsigned char bind, type;	unsigned long offset;	unsigned int len;	struct symbol *pfunc, *cfunc, *alias;	bool uaccess_safe;}; struct rela {	struct list_head list;	struct hlist_node hash;	GElf_Rela rela;	struct section *rela_sec;	struct symbol *sym;	unsigned int type;	unsigned long offset;	int addend;}; struct elf {	Elf *elf;	GElf_Ehdr ehdr;	int fd;	char *name;	struct list_head sections;	DECLARE_HASHTABLE(rela_hash, 16);};  struct elf *elf_open(const char *name, int flags);struct section *find_section_by_name(struct elf *elf, const char *name);struct symbol *find_symbol_by_offset(struct section *sec, unsigned long offset);struct symbol *find_symbol_by_name(struct elf *elf, const char *name);struct symbol *find_symbol_containing(struct section *sec, unsigned long offset);struct rela *find_rela_by_dest(struct section *sec, unsigned long offset);struct rela *find_rela_by_dest_range(struct section *sec, unsigned long offset,				     unsigned int len);struct symbol *find_containing_func(struct section *sec, unsigned long offset);struct section *elf_create_section(struct elf *elf, const char *name, size_t				   entsize, int nr);struct section *elf_create_rela_section(struct elf *elf, struct section *base);int elf_rebuild_rela_section(struct section *sec);int elf_write(struct elf *elf);void elf_close(struct elf *elf); #define for_each_sec(file, sec)						\	list_for_each_entry(sec, &file->elf->sections, list) #endif /* _OBJTOOL_ELF_H */