include/zephyr/llext/elf.h - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 /*
  * Copyright (c) 2023 Intel Corporation
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  */
 #ifndef ZEPHYR_LLEXT_ELF_H
 #define ZEPHYR_LLEXT_ELF_H

 #include <stdint.h>

 /**
  * @brief ELF types and parsing
  *
  * Reference documents can be found here https://refspecs.linuxfoundation.org/elf/
  *
  * @defgroup elf ELF data types and defines
  * @ingroup llext
  * @{
  */

 #ifdef __cplusplus
 extern "C" {
 #endif

 /** Unsigned program address */
 typedef uint32_t elf32_addr;
 /** Unsigned medium integer */
 typedef uint16_t elf32_half;
 /** Unsigned file offset */
 typedef uint32_t elf32_off;
 /** Signed integer */
 typedef int32_t elf32_sword;
 /** Unsigned integer */
 typedef uint32_t elf32_word;

 /** Unsigned program address */
 typedef uint64_t elf64_addr;
 /** Unsigned medium integer */
 typedef uint16_t elf64_half;
 /** Unsigned file offset */
 typedef uint64_t elf64_off;
 /** Signed integer */
 typedef int32_t elf64_sword;
 /** Unsigned integer */
 typedef uint32_t elf64_word;
 /** Signed long integer */
 typedef int64_t elf64_sxword;
 /** Unsigned long integer */
 typedef uint64_t elf64_xword;


 /**
  * @brief ELF identifier block
  *
  * 4 byte magic (.ELF)
  * 1 byte class (Invalid, 32 bit, 64 bit)
  * 1 byte endianness (Invalid, LSB, MSB)
  * 1 byte version (1)
  * 1 byte OS ABI (0 None, 1 HP-UX, 2 NetBSD, 3 Linux)
  * 1 byte ABI (0)
  * 7 bytes padding
  */
 #define EI_NIDENT 16

 /**
  * @brief ELF Header(32-bit)
  */
 struct elf32_ehdr {
 	/** Magic string identifying ELF binary */
 	unsigned char e_ident[EI_NIDENT];
 	/** Type of ELF */
 	elf32_half e_type;
 	/** Machine type */
 	elf32_half e_machine;
 	/** Object file version */
 	elf32_word e_version;
 	/** Virtual address of entry */
 	elf32_addr e_entry;
 	/** Program header table offset */
 	elf32_off e_phoff;
 	/** Section header table offset */
 	elf32_off e_shoff;
 	/** Processor specific flags */
 	elf32_word e_flags;
 	/** ELF header size */
 	elf32_half e_ehsize;
 	/** Program header count */
 	elf32_half e_phentsize;
 	/** Program header count */
 	elf32_half e_phnum;
 	/** Section header size */
 	elf32_half e_shentsize;
 	/** Section header count */
 	elf32_half e_shnum;
 	/** Section header containing section header string table */
 	elf32_half e_shstrndx;
 };

 /**
  * @brief ELF Header(64-bit)
  */
 struct elf64_ehdr {
 	/** Magic string identifying ELF binary */
 	unsigned char e_ident[EI_NIDENT];
 	/** Type of ELF */
 	elf64_half e_type;
 	/** Machine type */
 	elf64_half e_machine;
 	/** Object file version */
 	elf64_word e_version;
 	/** Virtual address of entry */
 	elf64_addr e_entry;
 	/** Program header table offset */
 	elf64_off e_phoff;
 	/** Section header table offset */
 	elf64_off e_shoff;
 	/** Processor specific flags */
 	elf64_word e_flags;
 	/** ELF header size */
 	elf64_half e_ehsize;
 	/** Program header size */
 	elf64_half e_phentsize;
 	/** Program header count */
 	elf64_half e_phnum;
 	/** Section header size */
 	elf64_half e_shentsize;
 	/** Section header count */
 	elf64_half e_shnum;
 	/** Section header containing section header string table */
 	elf64_half e_shstrndx;
 };

 /** Relocatable (unlinked) ELF */
 #define ET_REL  1

 /** Executable (without PIC/PIE) ELF */
 #define ET_EXEC 2

 /** Dynamic (executable with PIC/PIE or shared lib) ELF */
 #define ET_DYN  3

 /** Core Dump */
 #define ET_CORE 4

 /**
  * @brief Section Header(32-bit)
  */
 struct elf32_shdr {
 	/** Section header name index in section header string table */
 	elf32_word sh_name;
 	/** Section type */
 	elf32_word sh_type;
 	/** Section header attributes */
 	elf32_word sh_flags;
 	/** Address of section in the image */
 	elf32_addr sh_addr;
 	/** Location of section in the ELF binary in bytes */
 	elf32_off sh_offset;
 	/** Section size in bytes */
 	elf32_word sh_size;
 	/** Section header table link index, depends on section type */
 	elf32_word sh_link;
 	/** Section info, depends on section type */
 	elf32_word sh_info;
 	/** Section address alignment */
 	elf32_word sh_addralign;
 	/** Section contains table of fixed size entries sh_entsize bytes large */
 	elf32_word sh_entsize;
 };

 /**
  * @brief Section Header(64-bit)
  */
 struct elf64_shdr {
 	/** Section header name index in section header string table */
 	elf64_word sh_name;
 	/** Section type */
 	elf64_word sh_type;
 	/** Section header attributes */
 	elf64_xword sh_flags;
 	/** Address of section in the image */
 	elf64_addr sh_addr;
 	/** Location of section in the ELF binary in bytes */
 	elf64_off sh_offset;
 	/** Section size in bytes */
 	elf64_xword sh_size;
 	/** Section header table link index, depends on section type */
 	elf64_word sh_link;
 	/** Section info, depends on section type */
 	elf64_word sh_info;
 	/** Section address alignment */
 	elf64_xword sh_addralign;
 	/** Section contains table of fixed size entries sh_entsize bytes large */
 	elf64_xword sh_entsize;
 };

 #define SHT_PROGBITS 0x1
 #define SHT_SYMTAB 0x2
 #define SHT_STRTAB 0x3
 #define SHT_RELA 0x4
 #define SHT_NOBITS 0x8
 #define SHT_REL 0x9
 #define SHT_DYNSYM 0xB

 #define SHF_WRITE 0x1
 #define SHF_ALLOC 0x2
 #define SHF_EXECINSTR 0x4

 /**
  * @brief Symbol table entry(32-bit)
  */
 struct elf32_sym {
 	/** Name of the symbol as an index into the symbol string table */
 	elf32_word st_name;
 	/** Value or location of the symbol */
 	elf32_addr st_value;
 	/** Size of the symbol */
 	elf32_word st_size;
 	/** Symbol binding and type information */
 	unsigned char st_info;
 	/** Symbol visibility */
 	unsigned char st_other;
 	/** Symbols related section given by section header index */
 	elf32_half st_shndx;
 };

 /**
  * @brief Symbol table entry(64-bit)
  */
 struct elf64_sym {
 	/** Name of the symbol as an index into the symbol string table */
 	elf64_word st_name;
 	/** Value or location of the symbol */
 	elf64_addr st_value;
 	/** Size of the symbol */
 	elf64_xword st_size;
 	/** Symbol binding and type information */
 	unsigned char st_info;
 	/** Symbol visibility */
 	unsigned char st_other;
 	/** Symbols related section given by section header index */
 	elf64_half st_shndx;
 };

 #define SHN_UNDEF 0
 #define SHN_ABS 0xfff1
 #define SHN_COMMON 0xfff2

 #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_LOOS 10
 #define STT_HIOS 12
 #define STT_LOPROC 13
 #define STT_HIPROC 15

 #define STB_LOCAL 0
 #define STB_GLOBAL 1
 #define STB_WEAK 2
 #define STB_LOOS 10
 #define STB_HIOS 12
 #define STB_LOPROC 13
 #define STB_HIPROC 15

 /**
  * @brief Symbol binding from 32bit st_info
  *
  * @param i Value of st_info
  */
 #define ELF32_ST_BIND(i) ((i) >> 4)

 /**
  * @brief Symbol type from 32bit st_info
  *
  * @param i Value of st_info
  */
 #define ELF32_ST_TYPE(i) ((i) & 0xf)

 /**
  * @brief Symbol binding from 32bit st_info
  *
  * @param i Value of st_info
  */
 #define ELF64_ST_BIND(i) ((i) >> 4)


 /**
  * @brief Symbol type from 32bit st_info
  *
  * @param i Value of st_info
  */
 #define ELF64_ST_TYPE(i) ((i) & 0xf)

 /**
  * @brief Relocation entry for 32-bit ELFs
  */
 struct elf32_rel {
 	/** Offset in the section to perform a relocation */
 	elf32_addr r_offset;

 	/** Information about the relocation, related symbol and type */
 	elf32_word r_info;
 };

 struct elf32_rela {
 	elf32_addr r_offset;
 	elf32_word r_info;
 	elf32_word r_addend;
 };

 /**
  * @brief Relocation symbol index from r_info
  *
  * @param i Value of r_info
  */
 #define ELF32_R_SYM(i) ((i) >> 8)

 /**
  * @brief Relocation type from r_info
  *
  * @param i Value of r_info
  */
 #define ELF32_R_TYPE(i) ((i) & 0xff)

 /**
  * @brief Relocation entry for 64-bit ELFs
  */
 struct elf64_rel {
 	/** Offset in section to perform a relocation */
 	elf64_addr r_offset;
 	/** Information about relocation, related symbol and type */
 	elf64_xword r_info;
 };

 struct elf64_rela {
 	elf64_addr r_offset;
 	elf64_word r_info;
 	elf64_word r_addend;
 };

 /** @brief Relocation symbol from r_info
  *
  * @param i Value of r_info
  */
 #define ELF64_R_SYM(i) ((i) >> 32)

 /**
  * @brief Relocation type from r_info
  *
  * @param i Value of r_info
  */
 #define ELF64_R_TYPE(i) ((i) & 0xffffffff)

 #define R_386_NONE 0
 #define R_386_32 1
 #define R_386_PC32 2
 #define R_386_GOT32 3
 #define R_386_PLT32 4
 #define R_386_COPY 5
 #define R_386_GLOB_DAT 6
 #define R_386_JMP_SLOT 7
 #define R_386_RELATIVE 8
 #define R_386_GOTOFF 9

 #define R_ARM_NONE 0
 #define R_ARM_PC24 1
 #define R_ARM_ABS32 2
 #define R_ARM_REL32 3
 #define R_ARM_COPY 4
 #define R_ARM_CALL 28
 #define R_ARM_V4BX 40

 #define R_XTENSA_NONE 0
 #define R_XTENSA_32 1
 #define R_XTENSA_SLOT0_OP 20

 /**
  * @brief Program header(32-bit)
  */
 struct elf32_phdr {
 	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;
 };

 /**
  * @brief Program header(64-bit)
  */
 struct elf64_phdr {
 	elf64_word p_type;
 	elf64_off p_offset;
 	elf64_addr p_vaddr;
 	elf64_addr p_paddr;
 	elf64_xword p_filesz;
 	elf64_xword p_memsz;
 	elf64_word p_flags;
 	elf64_xword p_align;
 };

 /**
  * @brief Program segment type
  */
 #define PT_LOAD 1

 /**
  * @brief Dynamic section entry(32-bit)
  */
 struct elf32_dyn {
 	elf32_sword d_tag;
 	union {
 		elf32_word d_val;
 		elf32_addr d_ptr;
 	} d_un;
 };

 /**
  * @brief Dynamic section entry(64-bit)
  */
 struct elf64_dyn {
 	elf64_sxword d_tag;
 	union {
 		elf64_xword d_val;
 		elf64_addr d_ptr;
 	} d_un;
 };

 #if defined(CONFIG_64BIT) || defined(__DOXYGEN__)
 /** Machine sized elf header structure */
 typedef struct elf64_ehdr elf_ehdr_t;
 /** Machine sized section header structure */
 typedef struct elf64_shdr elf_shdr_t;
 /** Machine sized program header structure */
 typedef struct elf64_phdr elf_phdr_t;
 /** Machine sized program address */
 typedef elf64_addr elf_addr;
 /** Machine sized small integer */
 typedef elf64_half elf_half;
 /** Machine sized integer */
 typedef elf64_xword elf_word;
 /** Machine sized relocation struct */
 typedef struct elf64_rel elf_rel_t;
 typedef struct elf64_rela elf_rela_t;
 /** Machine sized symbol struct */
 typedef struct elf64_sym elf_sym_t;
 /** Machine sized macro alias for obtaining a relocation symbol */
 #define ELF_R_SYM ELF64_R_SYM
 /** Machine sized macro alias for obtaining a relocation type */
 #define ELF_R_TYPE ELF64_R_TYPE
 /** Machine sized macro alias for obtaining a symbol bind */
 #define ELF_ST_BIND ELF64_ST_BIND
 /** Machine sized macro alias for obtaining a symbol type */
 #define ELF_ST_TYPE ELF64_ST_TYPE
 #else
 /** Machine sized elf header structure */
 typedef struct elf32_ehdr elf_ehdr_t;
 /** Machine sized section header structure */
 typedef struct elf32_shdr elf_shdr_t;
 /** Machine sized program header structure */
 typedef struct elf32_phdr elf_phdr_t;
 /** Machine sized program address */
 typedef elf32_addr elf_addr;
 /** Machine sized small integer */
 typedef elf32_half elf_half;
 /** Machine sized integer */
 typedef elf32_word elf_word;
 /** Machine sized relocation struct */
 typedef struct elf32_rel elf_rel_t;
 typedef struct elf32_rela elf_rela_t;
 /** Machine sized symbol struct */
 typedef struct elf32_sym elf_sym_t;
 /** Machine sized macro alias for obtaining a relocation symbol */
 #define ELF_R_SYM ELF32_R_SYM
 /** Machine sized macro alias for obtaining a relocation type */
 #define ELF_R_TYPE ELF32_R_TYPE
 /** Machine sized macro alias for obtaining a symbol bind */
 #define ELF_ST_BIND ELF32_ST_BIND
 /** Machine sized macro alias for obtaining a symbol type */
 #define ELF_ST_TYPE ELF32_ST_TYPE
 #endif

 #ifdef __cplusplus
 }
 #endif

 /**
  * @}
  */

 #endif /* ZEPHYR_LLEXT_ELF_H */
	/*
	* Copyright (c) 2023 Intel Corporation
	*
	* SPDX-License-Identifier: Apache-2.0
	*
	*/
	#ifndef ZEPHYR_LLEXT_ELF_H
	#define ZEPHYR_LLEXT_ELF_H

	#include <stdint.h>

	/**
	* @brief ELF types and parsing
	*
	* Reference documents can be found here https://refspecs.linuxfoundation.org/elf/
	*
	* @defgroup elf ELF data types and defines
	* @ingroup llext
	* @{
	*/

	#ifdef __cplusplus
	extern "C" {
	#endif

	/** Unsigned program address */
	typedef uint32_t elf32_addr;
	/** Unsigned medium integer */
	typedef uint16_t elf32_half;
	/** Unsigned file offset */
	typedef uint32_t elf32_off;
	/** Signed integer */
	typedef int32_t elf32_sword;
	/** Unsigned integer */
	typedef uint32_t elf32_word;

	/** Unsigned program address */
	typedef uint64_t elf64_addr;
	/** Unsigned medium integer */
	typedef uint16_t elf64_half;
	/** Unsigned file offset */
	typedef uint64_t elf64_off;
	/** Signed integer */
	typedef int32_t elf64_sword;
	/** Unsigned integer */
	typedef uint32_t elf64_word;
	/** Signed long integer */
	typedef int64_t elf64_sxword;
	/** Unsigned long integer */
	typedef uint64_t elf64_xword;


	/**
	* @brief ELF identifier block
	*
	* 4 byte magic (.ELF)
	* 1 byte class (Invalid, 32 bit, 64 bit)
	* 1 byte endianness (Invalid, LSB, MSB)
	* 1 byte version (1)
	* 1 byte OS ABI (0 None, 1 HP-UX, 2 NetBSD, 3 Linux)
	* 1 byte ABI (0)
	* 7 bytes padding
	*/
	#define EI_NIDENT 16

	/**
	* @brief ELF Header(32-bit)
	*/
	struct elf32_ehdr {
	/** Magic string identifying ELF binary */
	unsigned char e_ident[EI_NIDENT];
	/** Type of ELF */
	elf32_half e_type;
	/** Machine type */
	elf32_half e_machine;
	/** Object file version */
	elf32_word e_version;
	/** Virtual address of entry */
	elf32_addr e_entry;
	/** Program header table offset */
	elf32_off e_phoff;
	/** Section header table offset */
	elf32_off e_shoff;
	/** Processor specific flags */
	elf32_word e_flags;
	/** ELF header size */
	elf32_half e_ehsize;
	/** Program header count */
	elf32_half e_phentsize;
	/** Program header count */
	elf32_half e_phnum;
	/** Section header size */
	elf32_half e_shentsize;
	/** Section header count */
	elf32_half e_shnum;
	/** Section header containing section header string table */
	elf32_half e_shstrndx;
	};

	/**
	* @brief ELF Header(64-bit)
	*/
	struct elf64_ehdr {
	/** Magic string identifying ELF binary */
	unsigned char e_ident[EI_NIDENT];
	/** Type of ELF */
	elf64_half e_type;
	/** Machine type */
	elf64_half e_machine;
	/** Object file version */
	elf64_word e_version;
	/** Virtual address of entry */
	elf64_addr e_entry;
	/** Program header table offset */
	elf64_off e_phoff;
	/** Section header table offset */
	elf64_off e_shoff;
	/** Processor specific flags */
	elf64_word e_flags;
	/** ELF header size */
	elf64_half e_ehsize;
	/** Program header size */
	elf64_half e_phentsize;
	/** Program header count */
	elf64_half e_phnum;
	/** Section header size */
	elf64_half e_shentsize;
	/** Section header count */
	elf64_half e_shnum;
	/** Section header containing section header string table */
	elf64_half e_shstrndx;
	};

	/** Relocatable (unlinked) ELF */
	#define ET_REL 1

	/** Executable (without PIC/PIE) ELF */
	#define ET_EXEC 2

	/** Dynamic (executable with PIC/PIE or shared lib) ELF */
	#define ET_DYN 3

	/** Core Dump */
	#define ET_CORE 4

	/**
	* @brief Section Header(32-bit)
	*/
	struct elf32_shdr {
	/** Section header name index in section header string table */
	elf32_word sh_name;
	/** Section type */
	elf32_word sh_type;
	/** Section header attributes */
	elf32_word sh_flags;
	/** Address of section in the image */
	elf32_addr sh_addr;
	/** Location of section in the ELF binary in bytes */
	elf32_off sh_offset;
	/** Section size in bytes */
	elf32_word sh_size;
	/** Section header table link index, depends on section type */
	elf32_word sh_link;
	/** Section info, depends on section type */
	elf32_word sh_info;
	/** Section address alignment */
	elf32_word sh_addralign;
	/** Section contains table of fixed size entries sh_entsize bytes large */
	elf32_word sh_entsize;
	};

	/**
	* @brief Section Header(64-bit)
	*/
	struct elf64_shdr {
	/** Section header name index in section header string table */
	elf64_word sh_name;
	/** Section type */
	elf64_word sh_type;
	/** Section header attributes */
	elf64_xword sh_flags;
	/** Address of section in the image */
	elf64_addr sh_addr;
	/** Location of section in the ELF binary in bytes */
	elf64_off sh_offset;
	/** Section size in bytes */
	elf64_xword sh_size;
	/** Section header table link index, depends on section type */
	elf64_word sh_link;
	/** Section info, depends on section type */
	elf64_word sh_info;
	/** Section address alignment */
	elf64_xword sh_addralign;
	/** Section contains table of fixed size entries sh_entsize bytes large */
	elf64_xword sh_entsize;
	};

	#define SHT_PROGBITS 0x1
	#define SHT_SYMTAB 0x2
	#define SHT_STRTAB 0x3
	#define SHT_RELA 0x4
	#define SHT_NOBITS 0x8
	#define SHT_REL 0x9
	#define SHT_DYNSYM 0xB

	#define SHF_WRITE 0x1
	#define SHF_ALLOC 0x2
	#define SHF_EXECINSTR 0x4

	/**
	* @brief Symbol table entry(32-bit)
	*/
	struct elf32_sym {
	/** Name of the symbol as an index into the symbol string table */
	elf32_word st_name;
	/** Value or location of the symbol */
	elf32_addr st_value;
	/** Size of the symbol */
	elf32_word st_size;
	/** Symbol binding and type information */
	unsigned char st_info;
	/** Symbol visibility */
	unsigned char st_other;
	/** Symbols related section given by section header index */
	elf32_half st_shndx;
	};

	/**
	* @brief Symbol table entry(64-bit)
	*/
	struct elf64_sym {
	/** Name of the symbol as an index into the symbol string table */
	elf64_word st_name;
	/** Value or location of the symbol */
	elf64_addr st_value;
	/** Size of the symbol */
	elf64_xword st_size;
	/** Symbol binding and type information */
	unsigned char st_info;
	/** Symbol visibility */
	unsigned char st_other;
	/** Symbols related section given by section header index */
	elf64_half st_shndx;
	};

	#define SHN_UNDEF 0
	#define SHN_ABS 0xfff1
	#define SHN_COMMON 0xfff2

	#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_LOOS 10
	#define STT_HIOS 12
	#define STT_LOPROC 13
	#define STT_HIPROC 15

	#define STB_LOCAL 0
	#define STB_GLOBAL 1
	#define STB_WEAK 2
	#define STB_LOOS 10
	#define STB_HIOS 12
	#define STB_LOPROC 13
	#define STB_HIPROC 15

	/**
	* @brief Symbol binding from 32bit st_info
	*
	* @param i Value of st_info
	*/
	#define ELF32_ST_BIND(i) ((i) >> 4)

	/**
	* @brief Symbol type from 32bit st_info
	*
	* @param i Value of st_info
	*/
	#define ELF32_ST_TYPE(i) ((i) & 0xf)

	/**
	* @brief Symbol binding from 32bit st_info
	*
	* @param i Value of st_info
	*/
	#define ELF64_ST_BIND(i) ((i) >> 4)


	/**
	* @brief Symbol type from 32bit st_info
	*
	* @param i Value of st_info
	*/
	#define ELF64_ST_TYPE(i) ((i) & 0xf)

	/**
	* @brief Relocation entry for 32-bit ELFs
	*/
	struct elf32_rel {
	/** Offset in the section to perform a relocation */
	elf32_addr r_offset;

	/** Information about the relocation, related symbol and type */
	elf32_word r_info;
	};

	struct elf32_rela {
	elf32_addr r_offset;
	elf32_word r_info;
	elf32_word r_addend;
	};

	/**
	* @brief Relocation symbol index from r_info
	*
	* @param i Value of r_info
	*/
	#define ELF32_R_SYM(i) ((i) >> 8)

	/**
	* @brief Relocation type from r_info
	*
	* @param i Value of r_info
	*/
	#define ELF32_R_TYPE(i) ((i) & 0xff)

	/**
	* @brief Relocation entry for 64-bit ELFs
	*/
	struct elf64_rel {
	/** Offset in section to perform a relocation */
	elf64_addr r_offset;
	/** Information about relocation, related symbol and type */
	elf64_xword r_info;
	};

	struct elf64_rela {
	elf64_addr r_offset;
	elf64_word r_info;
	elf64_word r_addend;
	};

	/** @brief Relocation symbol from r_info
	*
	* @param i Value of r_info
	*/
	#define ELF64_R_SYM(i) ((i) >> 32)

	/**
	* @brief Relocation type from r_info
	*
	* @param i Value of r_info
	*/
	#define ELF64_R_TYPE(i) ((i) & 0xffffffff)

	#define R_386_NONE 0
	#define R_386_32 1
	#define R_386_PC32 2
	#define R_386_GOT32 3
	#define R_386_PLT32 4
	#define R_386_COPY 5
	#define R_386_GLOB_DAT 6
	#define R_386_JMP_SLOT 7
	#define R_386_RELATIVE 8
	#define R_386_GOTOFF 9

	#define R_ARM_NONE 0
	#define R_ARM_PC24 1
	#define R_ARM_ABS32 2
	#define R_ARM_REL32 3
	#define R_ARM_COPY 4
	#define R_ARM_CALL 28
	#define R_ARM_V4BX 40

	#define R_XTENSA_NONE 0
	#define R_XTENSA_32 1
	#define R_XTENSA_SLOT0_OP 20

	/**
	* @brief Program header(32-bit)
	*/
	struct elf32_phdr {
	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;
	};

	/**
	* @brief Program header(64-bit)
	*/
	struct elf64_phdr {
	elf64_word p_type;
	elf64_off p_offset;
	elf64_addr p_vaddr;
	elf64_addr p_paddr;
	elf64_xword p_filesz;
	elf64_xword p_memsz;
	elf64_word p_flags;
	elf64_xword p_align;
	};

	/**
	* @brief Program segment type
	*/
	#define PT_LOAD 1

	/**
	* @brief Dynamic section entry(32-bit)
	*/
	struct elf32_dyn {
	elf32_sword d_tag;
	union {
	elf32_word d_val;
	elf32_addr d_ptr;
	} d_un;
	};

	/**
	* @brief Dynamic section entry(64-bit)
	*/
	struct elf64_dyn {
	elf64_sxword d_tag;
	union {
	elf64_xword d_val;
	elf64_addr d_ptr;
	} d_un;
	};

	#if defined(CONFIG_64BIT) \|\| defined(__DOXYGEN__)
	/** Machine sized elf header structure */
	typedef struct elf64_ehdr elf_ehdr_t;
	/** Machine sized section header structure */
	typedef struct elf64_shdr elf_shdr_t;
	/** Machine sized program header structure */
	typedef struct elf64_phdr elf_phdr_t;
	/** Machine sized program address */
	typedef elf64_addr elf_addr;
	/** Machine sized small integer */
	typedef elf64_half elf_half;
	/** Machine sized integer */
	typedef elf64_xword elf_word;
	/** Machine sized relocation struct */
	typedef struct elf64_rel elf_rel_t;
	typedef struct elf64_rela elf_rela_t;
	/** Machine sized symbol struct */
	typedef struct elf64_sym elf_sym_t;
	/** Machine sized macro alias for obtaining a relocation symbol */
	#define ELF_R_SYM ELF64_R_SYM
	/** Machine sized macro alias for obtaining a relocation type */
	#define ELF_R_TYPE ELF64_R_TYPE
	/** Machine sized macro alias for obtaining a symbol bind */
	#define ELF_ST_BIND ELF64_ST_BIND
	/** Machine sized macro alias for obtaining a symbol type */
	#define ELF_ST_TYPE ELF64_ST_TYPE
	#else
	/** Machine sized elf header structure */
	typedef struct elf32_ehdr elf_ehdr_t;
	/** Machine sized section header structure */
	typedef struct elf32_shdr elf_shdr_t;
	/** Machine sized program header structure */
	typedef struct elf32_phdr elf_phdr_t;
	/** Machine sized program address */
	typedef elf32_addr elf_addr;
	/** Machine sized small integer */
	typedef elf32_half elf_half;
	/** Machine sized integer */
	typedef elf32_word elf_word;
	/** Machine sized relocation struct */
	typedef struct elf32_rel elf_rel_t;
	typedef struct elf32_rela elf_rela_t;
	/** Machine sized symbol struct */
	typedef struct elf32_sym elf_sym_t;
	/** Machine sized macro alias for obtaining a relocation symbol */
	#define ELF_R_SYM ELF32_R_SYM
	/** Machine sized macro alias for obtaining a relocation type */
	#define ELF_R_TYPE ELF32_R_TYPE
	/** Machine sized macro alias for obtaining a symbol bind */
	#define ELF_ST_BIND ELF32_ST_BIND
	/** Machine sized macro alias for obtaining a symbol type */
	#define ELF_ST_TYPE ELF32_ST_TYPE
	#endif

	#ifdef __cplusplus
	}
	#endif

	/**
	* @}
	*/

	#endif /* ZEPHYR_LLEXT_ELF_H */