// This file is part of noxos and licensed under the MIT open source license

#ifndef NOX_ELF_HEADER_H
#define NOX_ELF_HEADER_H

#include "utils/stdtypes.h"
#include "utils/string.h"

typedef enum {
    ELF_ARCH_X32                   = 0x01,
    ELF_ARCH_X64                   = 0x02,
    ELF_ARCH_UNKNOWN               = 0xFF
} elf_target_architecture_E;

typedef enum {
    ELF_ENDIAN_LITTLE              = 0x01,
    ELF_ENDIAN_BIG                 = 0x02,
    ELF_ENDIAN_UNKNOWN             = 0xFF
} elf_endianness_E;

typedef enum {
    ELF_SYSABI_SYSTEM_V            = 0x00,
    ELF_SYSABI_HP_UX               = 0x01,
    ELF_SYSABI_NETBSD              = 0x02,
    ELF_SYSABI_LINUX               = 0x03,
    ELF_SYSABI_GNU_HURD            = 0x04,
    ELF_SYSABI_SOLARIS             = 0x06,
    ELF_SYSABI_AIX                 = 0x07,
    ELF_SYSABI_IRIX                = 0x08,
    ELF_SYSABI_FREEBSD             = 0x09,
    ELF_SYSABI_TRU64               = 0x0A,
    ELF_SYSABI_NOVELL_MODESTO      = 0x0B,
    ELF_SYSABI_OPENBSD             = 0x0C,
    ELF_SYSABI_OPENVMS             = 0x0D,
    ELF_SYSABI_NONSTOP_KERNEL      = 0x0E,
    ELF_SYSABI_AROS                = 0x0F,
    ELF_SYSABI_FENIX_OS            = 0x10,
    ELF_SYSABI_NUXI_CLOUD_ABI      = 0x11,
    ELF_SYSABI_STRATUS_OPENVOS     = 0x12,

    ELF_SYSABI_UNKNOWN             = 0xFF
} elf_sysabi_E;

typedef enum {
    ELF_OBJECT_NONE                = 0x00,
    ELF_OBJECT_RELOCATABLE         = 0x01,
    ELF_OBJECT_EXECUTABLE          = 0x02,
    ELF_OBJECT_DYNAMIC_LIB         = 0x03,
    ELF_OBJECT_CORE                = 0x04
} elf_object_type_E;

typedef enum {
    ELF_ISA_UNDEFINED              = 0x0000,
    ELF_ISA_WE_32100               = 0x0001,
    ELF_ISA_SPARC                  = 0x0002,
    ELF_ISA_X86_32                 = 0x0003,
    ELF_ISA_MOTOROLA_68000         = 0x0004,
    ELF_ISA_MOTOROLA_88000         = 0x0005,
    ELF_ISA_INTEL_MCU              = 0x0006,
    ELF_ISA_INTEL_80860            = 0x0007,
    ELF_ISA_MIPS                   = 0x0008,
    ELF_ISA_IBM_SYSTEM_370         = 0x0009,
    ELF_ISA_MIPS_RS3000_LE         = 0x000A,
    ELF_ISA_HP_PA_RISC             = 0x000E,
    ELF_ISA_INTEL_80960            = 0x0013,
    ELF_ISA_POWERPC                = 0x0014,
    ELF_ISA_POWERPC_64             = 0x0015,
    ELF_ISA_S390                   = 0x0016,
    ELF_ISA_IBM_SPU_SPC            = 0x0017,
    ELF_ISA_NEC_V800               = 0x0024,
    ELF_ISA_FUJITSU_FR20           = 0x0025,
    ELF_ISA_TRW_RH32               = 0x0026,
    ELF_ISA_MOTOROLA_RCE           = 0x0027,
    ELF_ISA_ARM32                  = 0x0028,
    ELF_ISA_DIGITAL_ALPHA          = 0x0029,
    ELF_ISA_SUPER_H                = 0x002A,
    ELF_ISA_SPARC_V9               = 0x002B,
    ELF_ISA_SIEMENS_TRICORE        = 0x002C,
    ELF_ISA_ARGONAUT_RISC          = 0x002D,
    ELF_ISA_HITACHI_H8_300         = 0x002E,
    ELF_ISA_HITACHI_H8_300H        = 0x002F,
    ELF_ISA_HITACHI_H8S            = 0x0030,
    ELF_ISA_HITACHI_H8_500         = 0x0031,
    ELF_ISA_IA_64                  = 0x0032,
    ELF_ISA_STANFORD_MIPS_X        = 0x0033,
    ELF_ISA_MOTOROLA_COLDFIRE      = 0x0034,
    ELF_ISA_MOTOROLA_68HC12        = 0x0035,
    ELF_ISA_FUJITSU_MMA_ACCEL      = 0x0036,
    ELF_ISA_SIEMENS_PCP            = 0x0037,
    ELF_ISA_SONY_NCPU_RISC         = 0x0038,
    ELF_ISA_DENSO_NDR1             = 0x0039,
    ELF_ISA_MOTOROLA_STARCORE      = 0x003A,
    ELF_ISA_TOYOTA_ME16            = 0x003B,
    ELF_ISA_ST100                  = 0x003C,
    ELF_ISA_TINY_J                 = 0x003D,
    ELF_ISA_X86_64                 = 0x003E,
    ELF_ISA_SONY_DSP               = 0x003F,
    ELF_ISA_PDP_10                 = 0x0040,
    ELF_ISA_PDP_11                 = 0x0041,
    ELF_ISA_SIEMENS_FX66           = 0x0042,
    ELF_ISA_STM_ST9_PLUS           = 0x0043,
    ELF_ISA_STM_ST7                = 0x0044,
    ELF_ISA_MOTOROLA_MC68HC16      = 0x0045,
    ELF_ISA_MOTOROLA_MC68HC11      = 0x0046,
    ELF_ISA_MOTOROLA_MC68HC08      = 0x0047,
    ELF_ISA_MOTOROLA_MC68HC05      = 0x0048,
    ELF_ISA_SGI_SVX                = 0x0049,
    ELF_ISA_STM_ST19               = 0x004A,
    ELF_ISA_DIGITAL_VAX            = 0x004B,
    ELF_ISA_AXIS_EMBEDDED_32       = 0x004C,
    ELF_ISA_INFINEON_EMBEDDED_32   = 0x004D,
    ELF_ISA_ELEMENT_14_DSP         = 0x004E,
    ELF_ISA_LSI_LOGIC_16_DSP       = 0x004F,
    ELF_ISA_TMS_S320_C6000         = 0x008C,
    ELF_ISA_MCST_ELBRUS_E2K        = 0x00AF,
    ELF_ISA_ARM64                  = 0x00B7,
    ELF_ISA_ZILOG_Z80              = 0x00DC,
    ELF_ISA_RISC_V                 = 0x00F3,
    ELF_ISA_BERKELEY_PACKET_FILTER = 0x00F7,
    ELF_ISA_WDC65C816              = 0x0101,

    ELF_ISA_UNKNOWN                = 0xFFFF
} elf_instruction_set_E;


typedef struct {
    uint8_t         identity[16];
    uint16_t	    type;
    uint16_t	    isa;
    uint32_t	    version;
    uint64_t	    address_entry_point;
    uint64_t	    offset_program_header;
    uint64_t	    offset_section_header;
    uint32_t	    flags;
    uint16_t	    len_header;
    uint16_t	    len_program_header_entry;
    uint16_t	    num_program_header_entries;
    uint16_t	    len_section_header_entry;
    uint16_t	    num_section_header_entries;
    uint16_t	    string_section_index;
} elf_header_T;

extern string_t g_elf_target_architecture_strings   [3];
extern string_t g_elf_endianness_strings            [3];
extern string_t g_elf_sysabi_strings                [18];
extern string_t g_elf_object_type_strings           [5];
extern string_t g_elf_instruction_set_strings       [79];



#endif //NOX_ELF_HEADER_H