[mirror_ubuntu-bionic-kernel.git] / include / linux / elf.h

#ifndef _LINUX_ELF_H
#define _LINUX_ELF_H

#include <linux/types.h>
#include <linux/elf-em.h>
#ifdef __KERNEL__
#include <asm/elf.h>
#endif

/* 32-bit ELF base types. */
typedef __u32	Elf32_Addr;
typedef __u16	Elf32_Half;
typedef __u32	Elf32_Off;
typedef __s32	Elf32_Sword;
typedef __u32	Elf32_Word;

/* 64-bit ELF base types. */
typedef __u64	Elf64_Addr;
typedef __u16	Elf64_Half;
typedef __s16	Elf64_SHalf;
typedef __u64	Elf64_Off;
typedef __s32	Elf64_Sword;
typedef __u32	Elf64_Word;
typedef __u64	Elf64_Xword;
typedef __s64	Elf64_Sxword;

/* These constants are for the segment types stored in the image headers */
#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               /* Thread local storage segment */
#define PT_LOOS    0x60000000      /* OS-specific */
#define PT_HIOS    0x6fffffff      /* OS-specific */
#define PT_LOPROC  0x70000000
#define PT_HIPROC  0x7fffffff
#define PT_GNU_EH_FRAME		0x6474e550

#define PT_GNU_STACK	(PT_LOOS + 0x474e551)

/*
 * Extended Numbering
 *
 * If the real number of program header table entries is larger than
 * or equal to PN_XNUM(0xffff), it is set to sh_info field of the
 * section header at index 0, and PN_XNUM is set to e_phnum
 * field. Otherwise, the section header at index 0 is zero
 * initialized, if it exists.
 *
 * Specifications are available in:
 *
 * - Sun microsystems: Linker and Libraries.
 *   Part No: 817-1984-17, September 2008.
 *   URL: http://docs.sun.com/app/docs/doc/817-1984
 *
 * - System V ABI AMD64 Architecture Processor Supplement
 *   Draft Version 0.99.,
 *   May 11, 2009.
 *   URL: http://www.x86-64.org/
 */
#define PN_XNUM 0xffff

/* These constants define the different elf file types */
#define ET_NONE   0
#define ET_REL    1
#define ET_EXEC   2
#define ET_DYN    3
#define ET_CORE   4
#define ET_LOPROC 0xff00
#define ET_HIPROC 0xffff

/* This is the info that is needed to parse the dynamic section of the file */
#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_ENCODING	32
#define OLD_DT_LOOS	0x60000000
#define DT_LOOS		0x6000000d
#define DT_HIOS		0x6ffff000
#define DT_VALRNGLO	0x6ffffd00
#define DT_VALRNGHI	0x6ffffdff
#define DT_ADDRRNGLO	0x6ffffe00
#define DT_ADDRRNGHI	0x6ffffeff
#define DT_VERSYM	0x6ffffff0
#define DT_RELACOUNT	0x6ffffff9
#define DT_RELCOUNT	0x6ffffffa
#define DT_FLAGS_1	0x6ffffffb
#define DT_VERDEF	0x6ffffffc
#define	DT_VERDEFNUM	0x6ffffffd
#define DT_VERNEED	0x6ffffffe
#define	DT_VERNEEDNUM	0x6fffffff
#define OLD_DT_HIOS     0x6fffffff
#define DT_LOPROC	0x70000000
#define DT_HIPROC	0x7fffffff

/* This info is needed when parsing the symbol table */
#define STB_LOCAL  0
#define STB_GLOBAL 1
#define STB_WEAK   2

#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 ELF_ST_BIND(x)		((x) >> 4)
#define ELF_ST_TYPE(x)		(((unsigned int) x) & 0xf)
#define ELF32_ST_BIND(x)	ELF_ST_BIND(x)
#define ELF32_ST_TYPE(x)	ELF_ST_TYPE(x)
#define ELF64_ST_BIND(x)	ELF_ST_BIND(x)
#define ELF64_ST_TYPE(x)	ELF_ST_TYPE(x)

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

typedef struct {
  Elf64_Sxword d_tag;		/* entry tag value */
  union {
    Elf64_Xword d_val;
    Elf64_Addr d_ptr;
  } d_un;
} Elf64_Dyn;

/* The following are used with relocations */
#define ELF32_R_SYM(x) ((x) >> 8)
#define ELF32_R_TYPE(x) ((x) & 0xff)

#define ELF64_R_SYM(i)			((i) >> 32)
#define ELF64_R_TYPE(i)			((i) & 0xffffffff)

typedef struct elf32_rel {
  Elf32_Addr	r_offset;
  Elf32_Word	r_info;
} Elf32_Rel;

typedef struct elf64_rel {
  Elf64_Addr r_offset;	/* Location at which to apply the action */
  Elf64_Xword r_info;	/* index and type of relocation */
} Elf64_Rel;

typedef struct elf32_rela{
  Elf32_Addr	r_offset;
  Elf32_Word	r_info;
  Elf32_Sword	r_addend;
} Elf32_Rela;

typedef struct elf64_rela {
  Elf64_Addr r_offset;	/* Location at which to apply the action */
  Elf64_Xword r_info;	/* index and type of relocation */
  Elf64_Sxword r_addend;	/* Constant addend used to compute value */
} Elf64_Rela;

typedef struct elf32_sym{
  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_sym {
  Elf64_Word st_name;		/* Symbol name, index in string tbl */
  unsigned char	st_info;	/* Type and binding attributes */
  unsigned char	st_other;	/* No defined meaning, 0 */
  Elf64_Half st_shndx;		/* Associated section index */
  Elf64_Addr st_value;		/* Value of the symbol */
  Elf64_Xword st_size;		/* Associated symbol size */
} Elf64_Sym;


#define EI_NIDENT	16

typedef struct elf32_hdr{
  unsigned char	e_ident[EI_NIDENT];
  Elf32_Half	e_type;
  Elf32_Half	e_machine;
  Elf32_Word	e_version;
  Elf32_Addr	e_entry;  /* Entry point */
  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 elf64_hdr {
  unsigned char	e_ident[EI_NIDENT];	/* ELF "magic number" */
  Elf64_Half e_type;
  Elf64_Half e_machine;
  Elf64_Word e_version;
  Elf64_Addr e_entry;		/* Entry point virtual address */
  Elf64_Off e_phoff;		/* Program header table file offset */
  Elf64_Off e_shoff;		/* Section header table file offset */
  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;

/* These constants define the permissions on sections in the program
   header, p_flags. */
#define PF_R		0x4
#define PF_W		0x2
#define PF_X		0x1

typedef 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;
} Elf32_Phdr;

typedef struct elf64_phdr {
  Elf64_Word p_type;
  Elf64_Word p_flags;
  Elf64_Off p_offset;		/* Segment file offset */
  Elf64_Addr p_vaddr;		/* Segment virtual address */
  Elf64_Addr p_paddr;		/* Segment physical address */
  Elf64_Xword p_filesz;		/* Segment size in file */
  Elf64_Xword p_memsz;		/* Segment size in memory */
  Elf64_Xword p_align;		/* Segment alignment, file & memory */
} Elf64_Phdr;

/* sh_type */
#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_NUM		12
#define SHT_LOPROC	0x70000000
#define SHT_HIPROC	0x7fffffff
#define SHT_LOUSER	0x80000000
#define SHT_HIUSER	0xffffffff

/* sh_flags */
#define SHF_WRITE	0x1
#define SHF_ALLOC	0x2
#define SHF_EXECINSTR	0x4
#define SHF_MASKPROC	0xf0000000

/* special section indexes */
#define SHN_UNDEF	0
#define SHN_LORESERVE	0xff00
#define SHN_LOPROC	0xff00
#define SHN_HIPROC	0xff1f
#define SHN_ABS		0xfff1
#define SHN_COMMON	0xfff2
#define SHN_HIRESERVE	0xffff
 
typedef struct elf32_shdr {
  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_shdr {
  Elf64_Word sh_name;		/* Section name, index in string tbl */
  Elf64_Word sh_type;		/* Type of section */
  Elf64_Xword sh_flags;		/* Miscellaneous section attributes */
  Elf64_Addr sh_addr;		/* Section virtual addr at execution */
  Elf64_Off sh_offset;		/* Section file offset */
  Elf64_Xword sh_size;		/* Size of section in bytes */
  Elf64_Word sh_link;		/* Index of another section */
  Elf64_Word sh_info;		/* Additional section information */
  Elf64_Xword sh_addralign;	/* Section alignment */
  Elf64_Xword sh_entsize;	/* Entry size if section holds table */
} Elf64_Shdr;

#define	EI_MAG0		0		/* e_ident[] indexes */
#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_PAD		8

#define	ELFMAG0		0x7f		/* EI_MAG */
#define	ELFMAG1		'E'
#define	ELFMAG2		'L'
#define	ELFMAG3		'F'
#define	ELFMAG		"\177ELF"
#define	SELFMAG		4

#define	ELFCLASSNONE	0		/* EI_CLASS */
#define	ELFCLASS32	1
#define	ELFCLASS64	2
#define	ELFCLASSNUM	3

#define ELFDATANONE	0		/* e_ident[EI_DATA] */
#define ELFDATA2LSB	1
#define ELFDATA2MSB	2

#define EV_NONE		0		/* e_version, EI_VERSION */
#define EV_CURRENT	1
#define EV_NUM		2

#define ELFOSABI_NONE	0
#define ELFOSABI_LINUX	3

#ifndef ELF_OSABI
#define ELF_OSABI ELFOSABI_NONE
#endif

/*
 * Notes used in ET_CORE. Architectures export some of the arch register sets
 * using the corresponding note types via the PTRACE_GETREGSET and
 * PTRACE_SETREGSET requests.
 */
#define NT_PRSTATUS	1
#define NT_PRFPREG	2
#define NT_PRPSINFO	3
#define NT_TASKSTRUCT	4
#define NT_AUXV		6
#define NT_PRXFPREG     0x46e62b7f      /* copied from gdb5.1/include/elf/common.h */
#define NT_PPC_VMX	0x100		/* PowerPC Altivec/VMX registers */
#define NT_PPC_SPE	0x101		/* PowerPC SPE/EVR registers */
#define NT_PPC_VSX	0x102		/* PowerPC VSX registers */
#define NT_386_TLS	0x200		/* i386 TLS slots (struct user_desc) */
#define NT_386_IOPERM	0x201		/* x86 io permission bitmap (1=deny) */
#define NT_X86_XSTATE	0x202		/* x86 extended state using xsave */
#define NT_S390_HIGH_GPRS	0x300	/* s390 upper register halves */
#define NT_S390_TIMER	0x301		/* s390 timer register */
#define NT_S390_TODCMP	0x302		/* s390 TOD clock comparator register */
#define NT_S390_TODPREG	0x303		/* s390 TOD programmable register */
#define NT_S390_CTRS	0x304		/* s390 control registers */
#define NT_S390_PREFIX	0x305		/* s390 prefix register */
#define NT_S390_LAST_BREAK	0x306	/* s390 breaking event address */
#define NT_S390_SYSTEM_CALL	0x307	/* s390 system call restart data */
#define NT_ARM_VFP	0x400		/* ARM VFP/NEON registers */


/* Note header in a PT_NOTE section */
typedef struct elf32_note {
  Elf32_Word	n_namesz;	/* Name size */
  Elf32_Word	n_descsz;	/* Content size */
  Elf32_Word	n_type;		/* Content type */
} Elf32_Nhdr;

/* Note header in a PT_NOTE section */
typedef struct elf64_note {
  Elf64_Word n_namesz;	/* Name size */
  Elf64_Word n_descsz;	/* Content size */
  Elf64_Word n_type;	/* Content type */
} Elf64_Nhdr;

#ifdef __KERNEL__
#ifndef elf_read_implies_exec
  /* Executables for which elf_read_implies_exec() returns TRUE will
     have the READ_IMPLIES_EXEC personality flag set automatically.
     Override in asm/elf.h as needed.  */
# define elf_read_implies_exec(ex, have_pt_gnu_stack)	0
#endif

#if ELF_CLASS == ELFCLASS32

extern Elf32_Dyn _DYNAMIC [];
#define elfhdr		elf32_hdr
#define elf_phdr	elf32_phdr
#define elf_shdr	elf32_shdr
#define elf_note	elf32_note
#define elf_addr_t	Elf32_Off
#define Elf_Half	Elf32_Half

#else

extern Elf64_Dyn _DYNAMIC [];
#define elfhdr		elf64_hdr
#define elf_phdr	elf64_phdr
#define elf_shdr	elf64_shdr
#define elf_note	elf64_note
#define elf_addr_t	Elf64_Off
#define Elf_Half	Elf64_Half

#endif

/* Optional callbacks to write extra ELF notes. */
struct file;

#ifndef ARCH_HAVE_EXTRA_ELF_NOTES
static inline int elf_coredump_extra_notes_size(void) { return 0; }
static inline int elf_coredump_extra_notes_write(struct file *file,
			loff_t *foffset) { return 0; }
#else
extern int elf_coredump_extra_notes_size(void);
extern int elf_coredump_extra_notes_write(struct file *file, loff_t *foffset);
#endif
#endif /* __KERNEL__ */
#endif /* _LINUX_ELF_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_ELF_H
	2	#define _LINUX_ELF_H
	3
	4	#include <linux/types.h>
f001e47f	5	#include <linux/elf-em.h>
6cc931b9	6	#ifdef __KERNEL__
1da177e4	7	#include <asm/elf.h>
6cc931b9	8	#endif
1da177e4	9
1da177e4 LT	10	/* 32-bit ELF base types. */
	11	typedef __u32 Elf32_Addr;
	12	typedef __u16 Elf32_Half;
	13	typedef __u32 Elf32_Off;
	14	typedef __s32 Elf32_Sword;
	15	typedef __u32 Elf32_Word;
	16
	17	/* 64-bit ELF base types. */
	18	typedef __u64 Elf64_Addr;
	19	typedef __u16 Elf64_Half;
	20	typedef __s16 Elf64_SHalf;
	21	typedef __u64 Elf64_Off;
	22	typedef __s32 Elf64_Sword;
	23	typedef __u32 Elf64_Word;
	24	typedef __u64 Elf64_Xword;
	25	typedef __s64 Elf64_Sxword;
	26
	27	/* These constants are for the segment types stored in the image headers */
	28	#define PT_NULL 0
	29	#define PT_LOAD 1
	30	#define PT_DYNAMIC 2
	31	#define PT_INTERP 3
	32	#define PT_NOTE 4
	33	#define PT_SHLIB 5
	34	#define PT_PHDR 6
	35	#define PT_TLS 7 /* Thread local storage segment */
	36	#define PT_LOOS 0x60000000 /* OS-specific */
	37	#define PT_HIOS 0x6fffffff /* OS-specific */
	38	#define PT_LOPROC 0x70000000
	39	#define PT_HIPROC 0x7fffffff
	40	#define PT_GNU_EH_FRAME 0x6474e550
	41
	42	#define PT_GNU_STACK (PT_LOOS + 0x474e551)
	43
8d9032bb DH	44	/*
	45	* Extended Numbering
	46	*
	47	* If the real number of program header table entries is larger than
	48	* or equal to PN_XNUM(0xffff), it is set to sh_info field of the
	49	* section header at index 0, and PN_XNUM is set to e_phnum
	50	* field. Otherwise, the section header at index 0 is zero
	51	* initialized, if it exists.
	52	*
	53	* Specifications are available in:
	54	*
	55	* - Sun microsystems: Linker and Libraries.
	56	* Part No: 817-1984-17, September 2008.
	57	* URL: http://docs.sun.com/app/docs/doc/817-1984
	58	*
	59	* - System V ABI AMD64 Architecture Processor Supplement
	60	* Draft Version 0.99.,
	61	* May 11, 2009.
	62	* URL: http://www.x86-64.org/
	63	*/
	64	#define PN_XNUM 0xffff
	65
1da177e4 LT	66	/* These constants define the different elf file types */
	67	#define ET_NONE 0
	68	#define ET_REL 1
	69	#define ET_EXEC 2
	70	#define ET_DYN 3
	71	#define ET_CORE 4
	72	#define ET_LOPROC 0xff00
	73	#define ET_HIPROC 0xffff
	74
1da177e4 LT	75	/* This is the info that is needed to parse the dynamic section of the file */
	76	#define DT_NULL 0
	77	#define DT_NEEDED 1
	78	#define DT_PLTRELSZ 2
	79	#define DT_PLTGOT 3
	80	#define DT_HASH 4
	81	#define DT_STRTAB 5
	82	#define DT_SYMTAB 6
	83	#define DT_RELA 7
	84	#define DT_RELASZ 8
	85	#define DT_RELAENT 9
	86	#define DT_STRSZ 10
	87	#define DT_SYMENT 11
	88	#define DT_INIT 12
	89	#define DT_FINI 13
	90	#define DT_SONAME 14
	91	#define DT_RPATH 15
	92	#define DT_SYMBOLIC 16
	93	#define DT_REL 17
	94	#define DT_RELSZ 18
	95	#define DT_RELENT 19
	96	#define DT_PLTREL 20
	97	#define DT_DEBUG 21
	98	#define DT_TEXTREL 22
	99	#define DT_JMPREL 23
d4f7a2c1 JF	100	#define DT_ENCODING 32
	101	#define OLD_DT_LOOS 0x60000000
	102	#define DT_LOOS 0x6000000d
	103	#define DT_HIOS 0x6ffff000
	104	#define DT_VALRNGLO 0x6ffffd00
	105	#define DT_VALRNGHI 0x6ffffdff
	106	#define DT_ADDRRNGLO 0x6ffffe00
	107	#define DT_ADDRRNGHI 0x6ffffeff
	108	#define DT_VERSYM 0x6ffffff0
	109	#define DT_RELACOUNT 0x6ffffff9
	110	#define DT_RELCOUNT 0x6ffffffa
	111	#define DT_FLAGS_1 0x6ffffffb
	112	#define DT_VERDEF 0x6ffffffc
	113	#define DT_VERDEFNUM 0x6ffffffd
	114	#define DT_VERNEED 0x6ffffffe
	115	#define DT_VERNEEDNUM 0x6fffffff
	116	#define OLD_DT_HIOS 0x6fffffff
1da177e4 LT	117	#define DT_LOPROC 0x70000000
	118	#define DT_HIPROC 0x7fffffff
	119
	120	/* This info is needed when parsing the symbol table */
	121	#define STB_LOCAL 0
	122	#define STB_GLOBAL 1
	123	#define STB_WEAK 2
	124
	125	#define STT_NOTYPE 0
	126	#define STT_OBJECT 1
	127	#define STT_FUNC 2
	128	#define STT_SECTION 3
	129	#define STT_FILE 4
b3f3d614 JB	130	#define STT_COMMON 5
b3f3d614 JB	131	#define STT_TLS 6
1da177e4 LT	132
	133	#define ELF_ST_BIND(x) ((x) >> 4)
	134	#define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf)
	135	#define ELF32_ST_BIND(x) ELF_ST_BIND(x)
	136	#define ELF32_ST_TYPE(x) ELF_ST_TYPE(x)
	137	#define ELF64_ST_BIND(x) ELF_ST_BIND(x)
	138	#define ELF64_ST_TYPE(x) ELF_ST_TYPE(x)
	139
1da177e4 LT	140	typedef struct dynamic{
	141	Elf32_Sword d_tag;
	142	union{
	143	Elf32_Sword d_val;
	144	Elf32_Addr d_ptr;
	145	} d_un;
	146	} Elf32_Dyn;
	147
	148	typedef struct {
	149	Elf64_Sxword d_tag; /* entry tag value */
	150	union {
	151	Elf64_Xword d_val;
	152	Elf64_Addr d_ptr;
	153	} d_un;
	154	} Elf64_Dyn;
	155
	156	/* The following are used with relocations */
	157	#define ELF32_R_SYM(x) ((x) >> 8)
	158	#define ELF32_R_TYPE(x) ((x) & 0xff)
	159
	160	#define ELF64_R_SYM(i) ((i) >> 32)
	161	#define ELF64_R_TYPE(i) ((i) & 0xffffffff)
	162
	163	typedef struct elf32_rel {
	164	Elf32_Addr r_offset;
	165	Elf32_Word r_info;
	166	} Elf32_Rel;
	167
	168	typedef struct elf64_rel {
	169	Elf64_Addr r_offset; /* Location at which to apply the action */
	170	Elf64_Xword r_info; /* index and type of relocation */
	171	} Elf64_Rel;
	172
	173	typedef struct elf32_rela{
	174	Elf32_Addr r_offset;
	175	Elf32_Word r_info;
	176	Elf32_Sword r_addend;
	177	} Elf32_Rela;
	178
	179	typedef struct elf64_rela {
	180	Elf64_Addr r_offset; /* Location at which to apply the action */
	181	Elf64_Xword r_info; /* index and type of relocation */
	182	Elf64_Sxword r_addend; /* Constant addend used to compute value */
	183	} Elf64_Rela;
	184
	185	typedef struct elf32_sym{
	186	Elf32_Word st_name;
	187	Elf32_Addr st_value;
	188	Elf32_Word st_size;
	189	unsigned char st_info;
	190	unsigned char st_other;
	191	Elf32_Half st_shndx;
	192	} Elf32_Sym;
	193
	194	typedef struct elf64_sym {
	195	Elf64_Word st_name; /* Symbol name, index in string tbl */
	196	unsigned char st_info; /* Type and binding attributes */
	197	unsigned char st_other; /* No defined meaning, 0 */
	198	Elf64_Half st_shndx; /* Associated section index */
	199	Elf64_Addr st_value; /* Value of the symbol */
	200	Elf64_Xword st_size; /* Associated symbol size */
	201	} Elf64_Sym;
	202
	203
204	#define EI_NIDENT 16
205
206	typedef struct elf32_hdr{
207	unsigned char e_ident[EI_NIDENT];
208	Elf32_Half e_type;
209	Elf32_Half e_machine;
210	Elf32_Word e_version;
211	Elf32_Addr e_entry; /* Entry point */
212	Elf32_Off e_phoff;
213	Elf32_Off e_shoff;
214	Elf32_Word e_flags;
215	Elf32_Half e_ehsize;
216	Elf32_Half e_phentsize;
217	Elf32_Half e_phnum;
218	Elf32_Half e_shentsize;
219	Elf32_Half e_shnum;
220	Elf32_Half e_shstrndx;
221	} Elf32_Ehdr;
222
223	typedef struct elf64_hdr {
eb6900fb	224	unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */
1da177e4 LT	225	Elf64_Half e_type;
	226	Elf64_Half e_machine;
	227	Elf64_Word e_version;
	228	Elf64_Addr e_entry; /* Entry point virtual address */
	229	Elf64_Off e_phoff; /* Program header table file offset */
	230	Elf64_Off e_shoff; /* Section header table file offset */
	231	Elf64_Word e_flags;
	232	Elf64_Half e_ehsize;
	233	Elf64_Half e_phentsize;
	234	Elf64_Half e_phnum;
	235	Elf64_Half e_shentsize;
	236	Elf64_Half e_shnum;
	237	Elf64_Half e_shstrndx;
	238	} Elf64_Ehdr;
	239
	240	/* These constants define the permissions on sections in the program
	241	header, p_flags. */
	242	#define PF_R 0x4
	243	#define PF_W 0x2
	244	#define PF_X 0x1
	245
	246	typedef struct elf32_phdr{
	247	Elf32_Word p_type;
	248	Elf32_Off p_offset;
	249	Elf32_Addr p_vaddr;
	250	Elf32_Addr p_paddr;
	251	Elf32_Word p_filesz;
	252	Elf32_Word p_memsz;
	253	Elf32_Word p_flags;
	254	Elf32_Word p_align;
	255	} Elf32_Phdr;
	256
	257	typedef struct elf64_phdr {
	258	Elf64_Word p_type;
	259	Elf64_Word p_flags;
	260	Elf64_Off p_offset; /* Segment file offset */
	261	Elf64_Addr p_vaddr; /* Segment virtual address */
	262	Elf64_Addr p_paddr; /* Segment physical address */
	263	Elf64_Xword p_filesz; /* Segment size in file */
	264	Elf64_Xword p_memsz; /* Segment size in memory */
	265	Elf64_Xword p_align; /* Segment alignment, file & memory */
	266	} Elf64_Phdr;
	267
	268	/* sh_type */
	269	#define SHT_NULL 0
	270	#define SHT_PROGBITS 1
	271	#define SHT_SYMTAB 2
	272	#define SHT_STRTAB 3
	273	#define SHT_RELA 4
	274	#define SHT_HASH 5
	275	#define SHT_DYNAMIC 6
	276	#define SHT_NOTE 7
	277	#define SHT_NOBITS 8
	278	#define SHT_REL 9
	279	#define SHT_SHLIB 10
	280	#define SHT_DYNSYM 11
	281	#define SHT_NUM 12
	282	#define SHT_LOPROC 0x70000000
	283	#define SHT_HIPROC 0x7fffffff
	284	#define SHT_LOUSER 0x80000000
	285	#define SHT_HIUSER 0xffffffff
	286
	287	/* sh_flags */
	288	#define SHF_WRITE 0x1
289	#define SHF_ALLOC 0x2
290	#define SHF_EXECINSTR 0x4
291	#define SHF_MASKPROC 0xf0000000
292
293	/* special section indexes */
294	#define SHN_UNDEF 0
295	#define SHN_LORESERVE 0xff00
296	#define SHN_LOPROC 0xff00
297	#define SHN_HIPROC 0xff1f
298	#define SHN_ABS 0xfff1
299	#define SHN_COMMON 0xfff2
300	#define SHN_HIRESERVE 0xffff
301
8d9032bb	302	typedef struct elf32_shdr {
1da177e4 LT	303	Elf32_Word sh_name;
	304	Elf32_Word sh_type;
	305	Elf32_Word sh_flags;
	306	Elf32_Addr sh_addr;
	307	Elf32_Off sh_offset;
	308	Elf32_Word sh_size;
	309	Elf32_Word sh_link;
	310	Elf32_Word sh_info;
	311	Elf32_Word sh_addralign;
	312	Elf32_Word sh_entsize;
	313	} Elf32_Shdr;
	314
	315	typedef struct elf64_shdr {
	316	Elf64_Word sh_name; /* Section name, index in string tbl */
	317	Elf64_Word sh_type; /* Type of section */
	318	Elf64_Xword sh_flags; /* Miscellaneous section attributes */
	319	Elf64_Addr sh_addr; /* Section virtual addr at execution */
	320	Elf64_Off sh_offset; /* Section file offset */
	321	Elf64_Xword sh_size; /* Size of section in bytes */
	322	Elf64_Word sh_link; /* Index of another section */
	323	Elf64_Word sh_info; /* Additional section information */
	324	Elf64_Xword sh_addralign; /* Section alignment */
	325	Elf64_Xword sh_entsize; /* Entry size if section holds table */
	326	} Elf64_Shdr;
	327
	328	#define EI_MAG0 0 /* e_ident[] indexes */
	329	#define EI_MAG1 1
	330	#define EI_MAG2 2
	331	#define EI_MAG3 3
	332	#define EI_CLASS 4
	333	#define EI_DATA 5
	334	#define EI_VERSION 6
	335	#define EI_OSABI 7
	336	#define EI_PAD 8
	337
	338	#define ELFMAG0 0x7f /* EI_MAG */
	339	#define ELFMAG1 'E'
	340	#define ELFMAG2 'L'
	341	#define ELFMAG3 'F'
	342	#define ELFMAG "\177ELF"
	343	#define SELFMAG 4
	344
	345	#define ELFCLASSNONE 0 /* EI_CLASS */
	346	#define ELFCLASS32 1
	347	#define ELFCLASS64 2
	348	#define ELFCLASSNUM 3
	349
	350	#define ELFDATANONE 0 /* e_ident[EI_DATA] */
	351	#define ELFDATA2LSB 1
	352	#define ELFDATA2MSB 2
	353
	354	#define EV_NONE 0 /* e_version, EI_VERSION */
	355	#define EV_CURRENT 1
	356	#define EV_NUM 2
	357
	358	#define ELFOSABI_NONE 0
	359	#define ELFOSABI_LINUX 3
	360
	361	#ifndef ELF_OSABI
	362	#define ELF_OSABI ELFOSABI_NONE
	363	#endif
	364
2225a122 SS	365	/*
	366	* Notes used in ET_CORE. Architectures export some of the arch register sets
	367	* using the corresponding note types via the PTRACE_GETREGSET and
	368	* PTRACE_SETREGSET requests.
	369	*/
1da177e4 LT	370	#define NT_PRSTATUS 1
	371	#define NT_PRFPREG 2
	372	#define NT_PRPSINFO 3
	373	#define NT_TASKSTRUCT 4
	374	#define NT_AUXV 6
	375	#define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */
1f7d6668	376	#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
24f1a849	377	#define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
f3e909c2	378	#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
bb61682b	379	#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
325af5fb	380	#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
5b3efd50	381	#define NT_X86_XSTATE 0x202 /* x86 extended state using xsave */
622e99bf	382	#define NT_S390_HIGH_GPRS 0x300 /* s390 upper register halves */
73bfa5f2 MH	383	#define NT_S390_TIMER 0x301 /* s390 timer register */
	384	#define NT_S390_TODCMP 0x302 /* s390 TOD clock comparator register */
	385	#define NT_S390_TODPREG 0x303 /* s390 TOD programmable register */
	386	#define NT_S390_CTRS 0x304 /* s390 control registers */
	387	#define NT_S390_PREFIX 0x305 /* s390 prefix register */
86f2552b	388	#define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */
20b40a79	389	#define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */
4c3b512c	390	#define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */
1da177e4 LT	391
	392
	393	/* Note header in a PT_NOTE section */
	394	typedef struct elf32_note {
	395	Elf32_Word n_namesz; /* Name size */
	396	Elf32_Word n_descsz; /* Content size */
	397	Elf32_Word n_type; /* Content type */
	398	} Elf32_Nhdr;
	399
	400	/* Note header in a PT_NOTE section */
	401	typedef struct elf64_note {
	402	Elf64_Word n_namesz; /* Name size */
	403	Elf64_Word n_descsz; /* Content size */
	404	Elf64_Word n_type; /* Content type */
	405	} Elf64_Nhdr;
	406
f4aa1c30	407	#ifdef __KERNEL__
267aed9d DH	408	#ifndef elf_read_implies_exec
	409	/* Executables for which elf_read_implies_exec() returns TRUE will
	410	have the READ_IMPLIES_EXEC personality flag set automatically.
	411	Override in asm/elf.h as needed. */
	412	# define elf_read_implies_exec(ex, have_pt_gnu_stack) 0
	413	#endif
	414
1da177e4 LT	415	#if ELF_CLASS == ELFCLASS32
	416
	417	extern Elf32_Dyn _DYNAMIC [];
	418	#define elfhdr elf32_hdr
	419	#define elf_phdr elf32_phdr
8d9032bb	420	#define elf_shdr elf32_shdr
1da177e4	421	#define elf_note elf32_note
386d9a7e	422	#define elf_addr_t Elf32_Off
1fcccbac	423	#define Elf_Half Elf32_Half
1da177e4 LT	424
	425	#else
	426
	427	extern Elf64_Dyn _DYNAMIC [];
	428	#define elfhdr elf64_hdr
	429	#define elf_phdr elf64_phdr
8d9032bb	430	#define elf_shdr elf64_shdr
1da177e4	431	#define elf_note elf64_note
386d9a7e	432	#define elf_addr_t Elf64_Off
1fcccbac	433	#define Elf_Half Elf64_Half
1da177e4 LT	434
	435	#endif
	436
e5501492	437	/* Optional callbacks to write extra ELF notes. */
267aed9d DH	438	struct file;
267aed9d DH	439
bf1ab978	440	#ifndef ARCH_HAVE_EXTRA_ELF_NOTES
e5501492 ME	441	static inline int elf_coredump_extra_notes_size(void) { return 0; }
	442	static inline int elf_coredump_extra_notes_write(struct file *file,
	443	loff_t *foffset) { return 0; }
	444	#else
	445	extern int elf_coredump_extra_notes_size(void);
	446	extern int elf_coredump_extra_notes_write(struct file file, loff_t foffset);
	447	#endif
f4aa1c30	448	#endif /* __KERNEL__ */
1da177e4	449	#endif /* _LINUX_ELF_H */