#pragma once

#include <lcrash/types.h>

#define ET_NONE 0
#define ET_REL  1
#define ET_EXEC 2
#define ET_DYN  3
#define ET_CORE 4

#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 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

struct [[gnu::packed]] Elf64_Ehdr {
	c8  e_ident[16];
	u16 e_type;
	u16 e_machine;
	u32 e_version;
	u64 e_entry;
	u64 e_phoff;
	u64 e_shoff;
	u32 e_flags;
	u16 e_ehsize;
	u16 e_phentsize;
	u16 e_phnum;
	u16 e_shentsize;
	u16 e_shnum;
	u16 e_shstrndx;
};

struct [[gnu::packed]] Elf64_Phdr {
	u32 p_type;
	u32 p_flags;
	u64 p_offset;
	u64 p_vaddr;
	u64 p_paddr;
	u64 p_filesz;
	u64 p_memsz;
	u64 p_align;
};

struct [[gnu::packed]] Elf64_Shdr {
	u32 sh_name;
	u32 sh_type;
	u64 sh_flags;
	u64 sh_addr;
	u64 sh_offset;
	u64 sh_size;
	u32 sh_link;
	u32 sh_info;
	u64 sh_addralign;
	u64 sh_entsize;
};

#define ELF64_R_SYM(info) ((info)>>32);
#define ELF64_R_TYPE(info) ((u32)info)
#define ELF64_R_AMD64_NONE  0
#define ELF64_R_AMD64_64    1
#define ELF64_R_AMD64_PC32  2
#define ELF64_R_AMD64_GOT32 3
#define ELF64_R_AMD64_PLT32 4
#define ELF64_R_AMD64_COPY  5
#define ELF64_R_AMD64_GLOB_DAT 6
#define ELF64_R_AMD64_JUMP_SLOT 7
#define ELF64_R_AMD64_RELATIVE 8
#define ELF64_R_AMD64_GOTPCREL 9
#define ELF64_R_AMD64_32 10
#define ELF64_R_AMD64_32S 11
#define ELF64_R_AMD64_16 12
#define ELF64_R_AMD64_PC16 13
#define ELF64_R_AMD64_8 14
#define ELF64_R_AMD64_PC8 15
#define ELF64_R_AMD64_PC64 24
#define ELF64_R_AMD64_GOTOFF64 25
#define ELF64_R_AMD64_GOTPC32 26
#define ELF64_R_AMD64_SIZE32 32
#define ELF64_R_AMD64_SIZE64 33
struct [[gnu::packed]] Elf64_Rela {
	u64 r_offset;
	u64 r_info;
	s64 r_addend;
};

struct [[gnu::packed]] Elf64_Sym {
	u32 st_name;
	u8  st_info;
	u8  st_other;
	u16 st_shndx;
	u64 st_value;
	u64 st_size;
};