text: /* SPDX-License-Identifier: BSD-2-Clause */
  /*-
   * Copyright (c) 1996-1998 John D. Polstra.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * $FreeBSD$
   */
  
  #ifndef _SYS_ELF64_H_
  #define _SYS_ELF64_H_ 1
  
  #include <elf_common.h>
  #include <stdint.h>
  
  /*
   * ELF definitions common to all 64-bit architectures.
   */
  
  typedef uint64_t	Elf64_Addr;
  typedef uint16_t	Elf64_Half;
  typedef uint64_t	Elf64_Off;
  typedef int32_t		Elf64_Sword;
  typedef int64_t		Elf64_Sxword;
  typedef uint32_t	Elf64_Word;
  typedef uint64_t	Elf64_Lword;
  typedef uint64_t	Elf64_Xword;
  
  /*
   * Types of dynamic symbol hash table bucket and chain elements.
   *
   * This is inconsistent among 64 bit architectures, so a machine dependent
   * typedef is required.
   */
  
  typedef Elf64_Word	Elf64_Hashelt;
  
  /* Non-standard class-dependent datatype used for abstraction. */
  typedef Elf64_Xword	Elf64_Size;
  typedef Elf64_Sxword	Elf64_Ssize;
  
  /*
   * ELF header.
   */
  
  typedef struct {
  	unsigned char	e_ident[EI_NIDENT];	/* File identification. */
  	Elf64_Half	e_type;		/* File type. */
  	Elf64_Half	e_machine;	/* Machine architecture. */
  	Elf64_Word	e_version;	/* ELF format version. */
  	Elf64_Addr	e_entry;	/* Entry point. */
  	Elf64_Off	e_phoff;	/* Program header file offset. */
  	Elf64_Off	e_shoff;	/* Section header file offset. */
  	Elf64_Word	e_flags;	/* Architecture-specific flags. */
  	Elf64_Half	e_ehsize;	/* Size of ELF header in bytes. */
  	Elf64_Half	e_phentsize;	/* Size of program header entry. */
  	Elf64_Half	e_phnum;	/* Number of program header entries. */
  	Elf64_Half	e_shentsize;	/* Size of section header entry. */
  	Elf64_Half	e_shnum;	/* Number of section header entries. */
  	Elf64_Half	e_shstrndx;	/* Section name strings section. */
  } Elf64_Ehdr;
  
  /*
   * Section header.
   */
  
  typedef struct {
  	Elf64_Word	sh_name;	/* Section name (index into the
  					   section header string table). */
  	Elf64_Word	sh_type;	/* Section type. */
  	Elf64_Xword	sh_flags;	/* Section flags. */
  	Elf64_Addr	sh_addr;	/* Address in memory image. */
  	Elf64_Off	sh_offset;	/* Offset in file. */
  	Elf64_Xword	sh_size;	/* Size in bytes. */
  	Elf64_Word	sh_link;	/* Index of a related section. */
  	Elf64_Word	sh_info;	/* Depends on section type. */
  	Elf64_Xword	sh_addralign;	/* Alignment in bytes. */
  	Elf64_Xword	sh_entsize;	/* Size of each entry in section. */
  } Elf64_Shdr;
  
  /*
   * Program header.
   */
  
  typedef struct {
  	Elf64_Word	p_type;		/* Entry type. */
  	Elf64_Word	p_flags;	/* Access permission flags. */
  	Elf64_Off	p_offset;	/* File offset of contents. */
  	Elf64_Addr	p_vaddr;	/* Virtual address in memory image. */
  	Elf64_Addr	p_paddr;	/* Physical address (not used). */
  	Elf64_Xword	p_filesz;	/* Size of contents in file. */
  	Elf64_Xword	p_memsz;	/* Size of contents in memory. */
  	Elf64_Xword	p_align;	/* Alignment in memory and file. */
  } Elf64_Phdr;
  
  /*
   * Dynamic structure.  The ".dynamic" section contains an array of them.
   */
  
  typedef struct {
  	Elf64_Sxword	d_tag;		/* Entry type. */
  	union {
  		Elf64_Xword	d_val;	/* Integer value. */
  		Elf64_Addr	d_ptr;	/* Address value. */
  	} d_un;
  } Elf64_Dyn;
  
  /*
   * Relocation entries.
   */
  
  /* Relocations that don't need an addend field. */
  typedef struct {
  	Elf64_Addr	r_offset;	/* Location to be relocated. */
  	Elf64_Xword	r_info;		/* Relocation type and symbol index. */
  } Elf64_Rel;
  
  /* Relocations that need an addend field. */
  typedef struct {
  	Elf64_Addr	r_offset;	/* Location to be relocated. */
  	Elf64_Xword	r_info;		/* Relocation type and symbol index. */
  	Elf64_Sxword	r_addend;	/* Addend. */
  } Elf64_Rela;
  
  /* Macros for accessing the fields of r_info. */
  #define	ELF64_R_SYM(info)	((info) >> 32)
  #define	ELF64_R_TYPE(info)	((info) & 0xffffffffL)
  
  /* Macro for constructing r_info from field values. */
  #define	ELF64_R_INFO(sym, type)	(((sym) << 32) + ((type) & 0xffffffffL))
  
  #define	ELF64_R_TYPE_DATA(info)	(((Elf64_Xword)(info)<<32)>>40)
  #define	ELF64_R_TYPE_ID(info)	(((Elf64_Xword)(info)<<56)>>56)
  #define	ELF64_R_TYPE_INFO(data, type)	\
  				(((Elf64_Xword)(data)<<8)+(Elf64_Xword)(type))
  
  /*
   *	Note entry header
   */
  typedef Elf_Note Elf64_Nhdr;
  
  /*
   *	Move entry
   */
  typedef struct {
  	Elf64_Lword	m_value;	/* symbol value */
  	Elf64_Xword 	m_info;		/* size + index */
  	Elf64_Xword	m_poffset;	/* symbol offset */
  	Elf64_Half	m_repeat;	/* repeat count */
  	Elf64_Half	m_stride;	/* stride info */
  } Elf64_Move;
  
  #define	ELF64_M_SYM(info)	((info)>>8)
  #define	ELF64_M_SIZE(info)	((unsigned char)(info))
  #define	ELF64_M_INFO(sym, size)	(((sym)<<8)+(unsigned char)(size))
  
  /*
   *	Hardware/Software capabilities entry
   */
  typedef struct {
  	Elf64_Xword	c_tag;		/* how to interpret value */
  	union {
  		Elf64_Xword	c_val;
  		Elf64_Addr	c_ptr;
  	} c_un;
  } Elf64_Cap;
  
  /*
   * Symbol table entries.
   */
  
  typedef struct {
  	Elf64_Word	st_name;	/* String table index of name. */
  	unsigned char	st_info;	/* Type and binding information. */
  	unsigned char	st_other;	/* Reserved (not used). */
  	Elf64_Half	st_shndx;	/* Section index of symbol. */
  	Elf64_Addr	st_value;	/* Symbol value. */
  	Elf64_Xword	st_size;	/* Size of associated object. */
  } Elf64_Sym;
  
  /* Macros for accessing the fields of st_info. */
  #define	ELF64_ST_BIND(info)		((info) >> 4)
  #define	ELF64_ST_TYPE(info)		((info) & 0xf)
  
  /* Macro for constructing st_info from field values. */
  #define	ELF64_ST_INFO(bind, type)	(((bind) << 4) + ((type) & 0xf))
  
  /* Macro for accessing the fields of st_other. */
  #define	ELF64_ST_VISIBILITY(oth)	((oth) & 0x3)
  
  /* Structures used by Sun & GNU-style symbol versioning. */
  typedef struct {
  	Elf64_Half	vd_version;
  	Elf64_Half	vd_flags;
  	Elf64_Half	vd_ndx;
  	Elf64_Half	vd_cnt;
  	Elf64_Word	vd_hash;
  	Elf64_Word	vd_aux;
  	Elf64_Word	vd_next;
  } Elf64_Verdef;
  
  typedef struct {
  	Elf64_Word	vda_name;
  	Elf64_Word	vda_next;
  } Elf64_Verdaux;
  
  typedef struct {
  	Elf64_Half	vn_version;
  	Elf64_Half	vn_cnt;
  	Elf64_Word	vn_file;
  	Elf64_Word	vn_aux;
  	Elf64_Word	vn_next;
  } Elf64_Verneed;
  
  typedef struct {
  	Elf64_Word	vna_hash;
  	Elf64_Half	vna_flags;
  	Elf64_Half	vna_other;
  	Elf64_Word	vna_name;
  	Elf64_Word	vna_next;
  } Elf64_Vernaux;
  
  typedef Elf64_Half Elf64_Versym;
  
  typedef struct {
  	Elf64_Half	si_boundto;	/* direct bindings - symbol bound to */
  	Elf64_Half	si_flags;	/* per symbol flags */
  } Elf64_Syminfo;
  
  #endif /* !_SYS_ELF64_H_ */
  