elfstruc.h

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};

struct ELF_HEADER32 {
	elf32_half e_type;
	elf32_half e_machine;
	elf32_word e_version;
	elf32_addr e_entry;
	elf32_off e_phoff;
	elf32_off e_shoff;
	elf32_word e_flags;
	elf32_half e_ehsize;
	elf32_half e_phentsize;
	elf32_half e_phnum;
	elf32_half e_shentsize;
	elf32_half e_shnum;
	elf32_half e_shstrndx;
};

struct ELF_HEADER64 {
	elf64_quarter e_type;
	elf64_quarter e_machine;
	elf64_half e_version;
	elf64_addr e_entry;
	elf64_off e_phoff;
	elf64_off e_shoff;
	elf64_half e_flags;
	elf64_quarter e_ehsize;
	elf64_quarter e_phentsize;
	elf64_quarter e_phnum;
	elf64_quarter e_shentsize;
	elf64_quarter e_shnum;
	elf64_quarter e_shstrndx;
};

/*
 *	ELF section header
 */

/* indices */
#define ELF_SHN_UNDEF		0
#define ELF_SHN_ABS		0xfff1
#define ELF_SHN_COMMON		0xfff2

/* sh_type */
#define ELF_SHT_NULL		0
#define ELF_SHT_PROGBITS	1
#define ELF_SHT_SYMTAB		2
#define ELF_SHT_STRTAB		3
#define ELF_SHT_RELA		4
#define ELF_SHT_HASH		5
#define ELF_SHT_DYNAMIC		6
#define ELF_SHT_NOTE		7
#define ELF_SHT_NOBITS		8
#define ELF_SHT_REL		9
#define ELF_SHT_SHLIB		10
#define ELF_SHT_DYNSYM		11

#define ELF_SHT_INIT_ARRAY	14
#define ELF_SHT_FINI_ARRAY	15
#define ELF_SHT_PREINIT_ARRAY	16

/* sh_flags */
#define ELF_SHF_WRITE			(1<<0)
#define ELF_SHF_ALLOC			(1<<1)
#define ELF_SHF_EXECINSTR		(1<<2)
// 1<<3 missing
#define ELF_SHF_MERGE			(1<<4)
#define ELF_SHF_STRINGS			(1<<5)
#define ELF_SHF_INFO_LINK		(1<<6)
#define ELF_SHF_LINK_ORDER		(1<<7)
#define ELF_SHF_OS_NONCONFORMING	(1<<8)

struct ELF_SECTION_HEADER32 {
	elf32_word sh_name;
	elf32_word sh_type;
	elf32_word sh_flags;
	elf32_addr sh_addr;     
	elf32_off sh_offset;
	elf32_word sh_size;
	elf32_word sh_link;
	elf32_word sh_info;
	elf32_word sh_addralign;
	elf32_word sh_entsize;
};

struct ELF_SECTION_HEADER64 {
	elf64_half sh_name;
	elf64_half sh_type;
	elf64_word sh_flags;
	elf64_addr sh_addr;
	elf64_off sh_offset;
	elf64_word sh_size;
	elf64_half sh_link;
	elf64_half sh_info;
	elf64_word sh_addralign;
	elf64_word sh_entsize;
};

/*
 *	ELF program header
 */

#define ELF_PT_NULL		0
#define ELF_PT_LOAD		1
#define ELF_PT_DYNAMIC		2
#define ELF_PT_INTERP		3
#define ELF_PT_NOTE		4
#define ELF_PT_SHLIB		5
#define ELF_PT_PHDR		6
#define ELF_PT_TLS		7          /* Thread-local storage segment  */
#define ELF_PT_NUM		8          /* Number of defined types       */
#define ELF_PT_GNU_EH_FRAME	0x6474e550 /* GCC .eh_frame_hdr segment     */
#define ELF_PT_GNU_STACK	0x6474e551 /* Indicates stack executability */
#define ELF_PT_GNU_RELRO	0x6474e552 /* Read-only after relocation    */ 
#define ELF_PT_PAX_FLAGS	0x65041580 /* Indicates PaX flag markings */

struct ELF_PROGRAM_HEADER32 {
	elf32_word p_type;
	elf32_off p_offset;
	elf32_addr p_vaddr;
	elf32_addr p_paddr;
	elf32_word p_filesz;
	elf32_word p_memsz;
	elf32_word p_flags;
	elf32_word p_align;
} PACKED;

struct ELF_PROGRAM_HEADER64 {
	elf64_half p_type;
	elf64_half p_flags;
	elf64_off p_offset;
	elf64_addr p_vaddr;
	elf64_addr p_paddr;
	elf64_word p_filesz;
	elf64_word p_memsz;
	elf64_word p_align;
};

struct ELF_NHEADER32 {
	elf32_word n_descsz;
	elf32_word n_namesz;
	elf32_word n_type;
} PACKED;

/*
 *	ELF symbol
 */

#define ELF_STB_LOCAL		0
#define ELF_STB_GLOBAL		1
#define ELF_STB_WEAK		2

#define ELF_STT_NOTYPE		0
#define ELF_STT_OBJECT		1
#define ELF_STT_FUNC		2
#define ELF_STT_SECTION		3
#define ELF_STT_FILE		4
#define ELF_STT_COMMON		5

#define ELF32_ST_BIND(i)		((i)>>4)
#define ELF32_ST_TYPE(i)		((i)&0xf)
#define ELF32_ST_INFO(b,t)	(((b)>>4)|((t)&0xf))

#define ELF64_ST_BIND(i)		((i)>>4)
#define ELF64_ST_TYPE(i)		((i)&0xf)
#define ELF64_ST_INFO(b,t)	(((b)>>4)|((t)&0xf))

struct ELF_SYMBOL32 {
	elf32_word st_name;
	elf32_addr st_value;
	elf32_word st_size;
	elf_unsigned_char st_info;
	elf_unsigned_char st_other;
	elf32_half st_shndx;
} PACKED;

struct ELF_SYMBOL64 {
	elf64_half st_name;
	elf_unsigned_char st_info;
	elf_unsigned_char st_other;
	elf64_quarter st_shndx;
	elf64_word st_value;
	elf64_word st_size;
} PACKED;

/*
 *	ELF relocation
 */

#define ELF32_R_SYM(i)		((i)>>8)
#define ELF32_R_TYPE(i)		((unsigned char)(i))
#define ELF32_R_INFO(s,t)	(((s)<<8)+(unsigned char)(t))

#define ELF_R_386_NONE			0
#define ELF_R_386_32			1
#define ELF_R_386_PC32			2
#define ELF_R_386_GOT32			3
#define ELF_R_386_PLT32			4
#define ELF_R_386_COPY			5
#define ELF_R_386_GLOB_DAT		6
#define ELF_R_386_JMP_SLOT		7
#define ELF_R_386_RELATIVE		8
#define ELF_R_386_GOTOFF		9
#define ELF_R_386_GOTPC			10

struct ELF_REL32 {
	elf32_addr	r_offset;
	elf32_word	r_info;
} PACKED;

struct ELF_REL64 {
	elf64_addr	r_offset;
	elf64_word	r_info;
} PACKED;

struct ELF_RELA32 {
	elf32_addr	r_offset;
	elf32_word	r_info;
	elf32_sword	r_addend;
} PACKED;

struct ELF_RELA64 {
	elf64_addr	r_offset;
	elf64_word	r_info;
	elf64_sword	r_addend;
} PACKED;

extern byte ELF_HEADER_struct[];
extern byte ELF_HEADER32_struct[];
extern byte ELF_SECTION_HEADER32_struct[];
extern byte ELF_PROGRAM_HEADER32_struct[];
extern byte ELF_SYMBOL32_struct[];
extern byte ELF_REL32_struct[];
extern byte ELF_RELA32_struct[];
extern byte ELF_HEADER64_struct[];
extern byte ELF_SECTION_HEADER64_struct[];
extern byte ELF_PROGRAM_HEADER64_struct[];
extern byte ELF_SYMBOL64_struct[];
extern byte ELF_REL64_struct[];
extern byte ELF_RELA64_struct[];

struct ELFAddress {
	union {
		uint32 a32;
		uint64 a64;
	};
};

#endif /* __ELFSTRUC_H__ */