#ifndef ELF_H_
#define ELF_H_ 1

#include <stdint.h>

typedef uint32_t Elf32_Addr;
typedef uint32_t Elf32_Off;
typedef uint16_t Elf32_Half;
typedef uint32_t Elf32_Word;
typedef int32_t Elf32_Sword;

typedef uint64_t Elf64_Addr;
typedef uint64_t Elf64_Off;
typedef uint16_t Elf64_Half;
typedef uint32_t Elf64_Word;
typedef int32_t Elf64_Sword;
typedef uint64_t Elf64_Xword;
typedef int64_t Elf64_Sxword;

#define EI_NIDENT 16

typedef struct {
	unsigned char   e_ident[EI_NIDENT];
	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;
} Elf32_Ehdr;

typedef struct {
	unsigned char   e_ident[EI_NIDENT];
	Elf64_Half      e_type;
	Elf64_Half      e_machine;
	Elf64_Word      e_version;
	Elf64_Addr      e_entry;
	Elf64_Off       e_phoff;
	Elf64_Off       e_shoff;
	Elf64_Word      e_flags;
	Elf64_Half      e_ehsize;
	Elf64_Half      e_phentsize;
	Elf64_Half      e_phnum;
	Elf64_Half      e_shentsize;
	Elf64_Half      e_shnum;
	Elf64_Half      e_shstrndx;
} Elf64_Ehdr;


typedef struct {
	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;
} Elf32_Shdr;

typedef struct {
	Elf64_Word	sh_name;
	Elf64_Word	sh_type;
	Elf64_Xword	sh_flags;
	Elf64_Addr	sh_addr;
	Elf64_Off	sh_offset;
	Elf64_Xword	sh_size;
	Elf64_Word	sh_link;
	Elf64_Word	sh_info;
	Elf64_Xword	sh_addralign;
	Elf64_Xword	sh_entsize;
} Elf64_Shdr;

typedef struct {
	Elf64_Word	p_type;	
	Elf64_Word	p_flags;
	Elf64_Off	p_offset;
	Elf64_Addr	p_vaddr;
	Elf64_Addr	p_paddr;
	Elf64_Xword	p_filesz;
	Elf64_Xword	p_memsz;
	Elf64_Xword	p_align;
} Elf64_Phdr;

#define	PT_NULL		0
#define PT_LOAD		1
#define PT_DYNAMIC	2
#define PT_INTERP	3
#define PT_NOTE		4
#define PT_SHLIB	5
#define PT_PHDR		6
#define PT_TLS		7
#define	PT_NUM		8
#define PT_LOOS		0x60000000
#define PT_HIOS		0x6fffffff
#define PT_LOPROC	0x70000000
#define PT_HIPROC	0x7fffffff

typedef struct {
	Elf32_Word	ch_type;
	Elf32_Word	ch_size;
	Elf32_Word	ch_addralign;
} Elf32_Chdr;

typedef struct {
	Elf64_Word	ch_type;
	Elf64_Word	ch_reserved;
	Elf64_Xword	ch_size;
	Elf64_Xword	ch_addralign;
} Elf64_Chdr;

typedef struct {
	Elf32_Word	st_name;
	Elf32_Addr	st_value;
	Elf32_Word	st_size;
	unsigned char	st_info;
	unsigned char	st_other;
	Elf32_Half	st_shndx;
} Elf32_Sym;

typedef struct {
	Elf64_Word	st_name;
	unsigned char	st_info;
	unsigned char	st_other;
	Elf64_Half	st_shndx;
	Elf64_Addr	st_value;
	Elf64_Xword	st_size;
} Elf64_Sym;


typedef struct {
	Elf32_Addr	r_offset;
	Elf32_Word	r_info;
} Elf32_Rel;

typedef struct {
	Elf32_Addr	r_offset;
	Elf32_Word	r_info;
	Elf32_Sword	r_addend;
} Elf32_Rela;

typedef struct {
	Elf64_Addr	r_offset;
	Elf64_Xword	r_info;
} Elf64_Rel;

typedef struct {
	Elf64_Addr	r_offset;
	Elf64_Xword	r_info;
	Elf64_Sxword	r_addend;
} Elf64_Rela;

typedef struct {
	Elf32_Sword	d_tag;
	union {
		Elf32_Word	d_val;
		Elf32_Addr	d_ptr;
	} d_un;
} Elf32_Dyn;

/* extern Elf32_Dyn	_DYNAMIC[]; */

typedef struct {
	Elf64_Sxword	d_tag;
	union {
		Elf64_Xword	d_val;
		Elf64_Addr	d_ptr;
	} d_un;
} Elf64_Dyn;

/* extern Elf64_Dyn	_DYNAMIC[]; */

#define DT_NULL 0
#define DT_NEEDED 1
#define DT_PLTRELSZ 2
#define DT_PLTGOT 3
#define DT_HASH 4
#define DT_STRTAB 5
#define DT_SYMTAB 6
#define DT_RELA 7
#define DT_RELASZ 8
#define DT_RELAENT 9
#define DT_STRSZ 10
#define DT_SYMENT 11
#define DT_INIT 12
#define DT_FINI 13
#define DT_SONAME 14
#define DT_RPATH 15
#define DT_SYMBOLIC 16
#define DT_REL 17
#define DT_RELSZ 18
#define DT_RELENT 19
#define DT_PLTREL 20
#define DT_DEBUG 21
#define DT_TEXTREL 22
#define DT_JMPREL 23
#define DT_BIND_NOW 24
#define DT_INIT_ARRAY 25
#define DT_FINI_ARRAY 26
#define DT_INIT_ARRAYSZ 27
#define DT_FINI_ARRAYSZ 28
#define DT_RUNPATH 29
#define DT_FLAGS 30
#define DT_ENCODING 32
#define DT_PREINIT_ARRAY 32
#define DT_PREINIT_ARRAYSZ 33
#define DT_SYMTAB_SHNDX 34
#define DT_LOOS 0x6000000D
#define DT_HIOS 0x6ffff000
#define DT_LOPROC 0x70000000
#define DT_HIPROC 0x7fffffff

#define DF_ORIGIN	0x1
#define DF_SYMBOLIC	0x2
#define DF_TEXTREL	0x4
#define DF_BIND_NOW	0x8
#define DF_STATIC_TLS	0x10

#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 ELF64_R_SYM(i)    ((i)>>32)
#define ELF64_R_TYPE(i)   ((i)&0xffffffffL)
#define ELF64_R_INFO(s,t) (((s)<<32)+((t)&0xffffffffL))

#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))

#define ELF32_ST_VISIBILITY(o) ((o)&0x3)
#define ELF64_ST_VISIBILITY(o) ((o)&0x3)

#define STB_GLOBAL	1
#define STB_WEAK	2
#define STB_LOOS	10
#define STB_HIOS	12
#define STB_LOPROC	13
#define STB_HIPROC	15

#define STT_NOTYPE	0
#define STT_OBJECT	1
#define STT_FUNC	2
#define STT_SECTION	3
#define STT_FILE	4
#define STT_COMMON	5
#define STT_TLS	6
#define STT_LOOS	10
#define STT_HIOS	12
#define STT_LOPROC	13
#define STT_HIPROC	15

#define STV_DEFAULT	0
#define STV_INTERNAL	1
#define STV_HIDDEN	2
#define STV_PROTECTED	3

#define GRP_COMDAT	0x1
#define GRP_MASKOS	0x0ff00000
#define GRP_MASKPROC	0xf0000000

#define ELFCOMPRESS_ZLIB	1
#define ELFCOMPRESS_LOOS	0x60000000
#define ELFCOMPRESS_HIOS	0x6fffffff
#define ELFCOMPRESS_LOPROC	0x70000000
#define ELFCOMPRESS_HIPROC	0x7fffffff

#define SHT_NULL	0
#define SHT_PROGBITS	1
#define SHT_SYMTAB	2
#define SHT_STRTAB	3
#define SHT_RELA	4
#define SHT_HASH	5
#define SHT_DYNAMIC	6
#define SHT_NOTE	7
#define SHT_NOBITS	8
#define SHT_REL	9
#define SHT_SHLIB	10
#define SHT_DYNSYM	11
#define SHT_INIT_ARRAY	14
#define SHT_FINI_ARRAY	15
#define SHT_PREINIT_ARRAY	16
#define SHT_GROUP	17
#define SHT_SYMTAB_SHNDX	18
#define SHT_LOOS	0x60000000
#define SHT_HIOS	0x6fffffff
#define SHT_LOPROC	0x70000000
#define SHT_HIPROC	0x7fffffff
#define SHT_LOUSER	0x80000000
#define SHT_HIUSER	0xffffffff

#define SHF_WRITE	0x1
#define SHF_ALLOC	0x2
#define SHF_EXECINSTR	0x4
#define SHF_MERGE	0x10
#define SHF_STRINGS	0x20
#define SHF_INFO_LINK	0x40
#define SHF_LINK_ORDER	0x80
#define SHF_OS_NONCONFORMING	0x100
#define SHF_GROUP	0x200
#define SHF_TLS	0x400
#define SHF_COMPRESSED	0x800
#define SHF_MASKOS	0x0ff00000
#define SHF_MASKPROC	0xf0000000

#define SHN_UNDEF	0
#define SHN_LORESERVE	0xff00
#define SHN_LOPROC	0xff00
#define SHN_HIPROC	0xff1f
#define SHN_LOOS	0xff20
#define SHN_HIOS	0xff3f
#define SHN_ABS	0xfff1
#define SHN_COMMON	0xfff2
#define SHN_XINDEX	0xffff
#define SHN_HIRESERVE	0xffff

#define ET_NONE 0
#define ET_REL 1
#define ET_EXEC 2
#define ET_DYN 3
#define ET_CORE 4
#define ET_LOOS 0xfe00
#define ET_HIOS 0xfeff
#define ET_LOPROC 0xff00
#define ET_HIPROC 0xffff

#define EM_NONE 0
#define EM_M32 1
#define EM_SPARC 2
#define EM_386 3
#define EM_68K 4
#define EM_88K 5
#define EM_IAMCU 6
#define EM_860 7
#define EM_MIPS 8
#define EM_S370 9
#define EM_MIPS_RS3_LE 10
#define EM_PARISC 15
#define EM_VPP500 17
#define EM_SPARC32PLUS 18
#define EM_960 19
#define EM_PPC 20
#define EM_PPC64 21
#define EM_S390 22
#define EM_SPU 23
#define EM_V800 36
#define EM_FR20 37
#define EM_RH32 38
#define EM_RCE 39
#define EM_ARM 40
#define EM_ALPHA 41
#define EM_SH 42
#define EM_SPARCV9 43
#define EM_TRICORE 44
#define EM_ARC 45
#define EM_H8_300 46
#define EM_H8_300H 47
#define EM_H8S 48
#define EM_H8_500 49
#define EM_IA_64 50
#define EM_MIPS_X 51
#define EM_COLDFIRE 52
#define EM_68HC12 53
#define EM_MMA 54
#define EM_PCP 55
#define EM_NCPU 56
#define EM_NDR1 57
#define EM_STARCORE 58
#define EM_ME16 59
#define EM_ST100 60
#define EM_TINYJ 61
#define EM_X86_64 62
#define EM_PDSP 63
#define EM_PDP10 64
#define EM_PDP11 65
#define EM_FX66 66
#define EM_ST9PLUS 67
#define EM_ST7 68
#define EM_68HC16 69
#define EM_68HC11 70
#define EM_68HC08 71
#define EM_68HC05 72
#define EM_SVX 73
#define EM_ST19 74
#define EM_VAX 75
#define EM_CRIS 76
#define EM_JAVELIN 77
#define EM_FIREPATH 78
#define EM_ZSP 79
#define EM_MMIX 80
#define EM_HUANY 81
#define EM_PRISM 82
#define EM_AVR 83
#define EM_FR30 84
#define EM_D10V 85
#define EM_D30V 86
#define EM_V850 87
#define EM_M32R 88
#define EM_MN10300 89
#define EM_MN10200 90
#define EM_PJ 91
#define EM_OPENRISC 92
#define EM_ARC_COMPACT 93
#define EM_XTENSA 94
#define EM_VIDEOCORE 95
#define EM_TMM_GPP 96
#define EM_NS32K 97
#define EM_TPC 98
#define EM_SNP1K 99
#define EM_ST200 100
#define EM_IP2K 101
#define EM_MAX 102
#define EM_CR 103
#define EM_F2MC16 104
#define EM_MSP430 105
#define EM_BLACKFIN 106
#define EM_SE_C33 107
#define EM_SEP 108
#define EM_ARCA 109
#define EM_UNICORE 110
#define EM_EXCESS 111
#define EM_DXP 112
#define EM_ALTERA_NIOS2 113
#define EM_CRX 114
#define EM_XGATE 115
#define EM_C166 116
#define EM_M16C 117
#define EM_DSPIC30F 118
#define EM_CE 119
#define EM_M32C 120
#define EM_TSK3000 131
#define EM_RS08 132
#define EM_SHARC 133
#define EM_ECOG2 134
#define EM_SCORE7 135
#define EM_DSP24 136
#define EM_VIDEOCORE3 137
#define EM_LATTICEMICO32 138
#define EM_SE_C17 139
#define EM_TI_C6000 140
#define EM_TI_C2000 141
#define EM_TI_C5500 142
#define EM_TI_ARP32 143
#define EM_TI_PRU 144
#define EM_MMDSP_PLUS 160
#define EM_MMDSP_PLUS 160
#define EM_CYPRESS_M8C 161
#define EM_R32C 162
#define EM_TRIMEDIA 163
#define EM_QDSP6 164
#define EM_8051 165
#define EM_STXP7X 166
#define EM_NDS32 167
#define EM_ECOG1 168
#define EM_ECOG1X 168
#define EM_MAXQ30 169
#define EM_XIMO16 170
#define EM_MANIK 171
#define EM_CRAYNV2 172
#define EM_RX 173
#define EM_METAG 174
#define EM_MCST_ELBRUS 175
#define EM_ECOG16 176
#define EM_CR16 177
#define EM_ETPU 178
#define EM_SLE9X 179
#define EM_L10M 180
#define EM_K10M 181
#define EM_AARCH64	183
#define EM_AVR32	185
#define EM_STM8	186
#define EM_TILE64	187
#define EM_TILEPRO	188
#define EM_MICROBLAZE	189
#define EM_CUDA	190
#define EM_TILEGX	191
#define EM_CLOUDSHIELD	192
#define EM_COREA_1ST	193
#define EM_COREA_2ND	194
#define EM_ARC_COMPACT2	195
#define EM_OPEN8	196
#define EM_RL78	197
#define EM_VIDEOCORE5	198
#define EM_78KOR	199
#define EM_56800EX	200
#define EM_BA1	201
#define EM_BA2	202
#define EM_XCORE	203
#define EM_MCHP_PIC	204
#define EM_INTEL205	205
#define EM_INTEL206	206
#define EM_INTEL207	207
#define EM_INTEL208	208
#define EM_INTEL209	209
#define EM_KM32	210
#define EM_KMX32	211
#define EM_KMX16	212
#define EM_KMX8	213
#define EM_KVARC	214
#define EM_CDP	215
#define EM_COGE	216
#define EM_COOL	217
#define EM_NORC	218
#define EM_CSR_KALIMBA	219
#define EM_Z80	220
#define EM_VISIUM	221
#define EM_FT32	222
#define EM_MOXIE	223
#define EM_AMDGPU	224
#define EM_RISCV	243

#define EV_NONE	0
#define EV_CURRENT	1

#define EI_MAG0	0
#define EI_MAG1	1
#define EI_MAG2	2
#define EI_MAG3	3
#define EI_CLASS	4
#define EI_DATA	5
#define EI_VERSION	6
#define EI_OSABI	7
#define EI_ABIVERSION	8
#define EI_PAD	9
#define EI_NIDENT	16

#define ELFMAG0	0x7f
#define ELFMAG1	'E'
#define ELFMAG2	'L'
#define ELFMAG3	'F'

#define ELFCLASSNONE	0
#define ELFCLASS32	1
#define ELFCLASS64	2

#define ELFDATANONE	0
#define ELFDATA2LSB	1
#define ELFDATA2MSB	2

#define ELFOSABI_NONE	0
#define ELFOSABI_HPUX	1
#define ELFOSABI_NETBSD	2
#define ELFOSABI_GNU	3
#define ELFOSABI_LINUX 3
#define ELFOSABI_SOLARIS	6
#define ELFOSABI_AIX	7
#define ELFOSABI_IRIX	8
#define ELFOSABI_FREEBSD	9
#define ELFOSABI_TRU64	10
#define ELFOSABI_MODESTO	11
#define ELFOSABI_OPENBSD	12
#define ELFOSABI_OPENVMS	13
#define ELFOSABI_NSK	14
#define ELFOSABI_AROS	15
#define ELFOSABI_FENIXOS	16
#define ELFOSABI_CLOUDABI	17
#define ELFOSABI_OPENVOS	18

/* libelf.c */
Elf64_Ehdr *libelf_header(void *elf);
Elf64_Shdr *libelf_shdr(void *elf, int n);
Elf64_Shdr *libelf_sht_strtab(void *elf);
char *libelf_sectionname(Elf64_Shdr *section, Elf64_Shdr *strtab);
Elf64_Shdr *libelf_section_n(void *elf, int n);
Elf64_Shdr *libelf_section(void *elf, unsigned int type);
int libelf_type(void *elf);
int libelf_iself(void *elf);
char *libelf_soname(void *elf);

#endif