[qemu.git] / elf.h

/*
 * ELF register definitions..
 */

#include <inttypes.h>

typedef uint32_t  elf_greg_t;

#define ELF_NGREG (sizeof (struct target_pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];

typedef struct user_i387_struct elf_fpregset_t;

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
#define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) )

/*
 * These are used to set parameters in the core dumps.
 */
#define ELF_CLASS	ELFCLASS32
#define ELF_DATA	ELFDATA2LSB;
#define ELF_ARCH	EM_386

	/* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
	   starts %edx contains a pointer to a function which might be
	   registered using `atexit'.  This provides a mean for the
	   dynamic linker to call DT_FINI functions for shared libraries
	   that have been loaded before the code runs.

	   A value of 0 tells we have no such handler.  */
#define ELF_PLAT_INIT(_r)	_r->edx = 0

#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE	4096


typedef uint32_t	 Elf32_Addr;
typedef uint16_t Elf32_Half;
typedef uint32_t Elf32_Off;
typedef int32_t  Elf32_Sword;
typedef uint32_t Elf32_Word;

/* 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_LOPROC  0x70000000
#define PT_HIPROC  0x7fffffff

/* 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 5
#define ET_HIPROC 6

/* These constants define the various ELF target machines */
#define EM_NONE  0
#define EM_M32   1
#define EM_SPARC 2
#define EM_386   3
#define EM_68K   4
#define EM_88K   5
#define EM_486   6   /* Perhaps disused */
#define EM_860   7

#define EM_MIPS		8	/* MIPS R3000 (officially, big-endian only) */

#define EM_MIPS_RS4_BE 10	/* MIPS R4000 big-endian */

#define EM_SPARC64     11	/* SPARC v9 (not official) 64-bit */

#define EM_PARISC      15	/* HPPA */

#define EM_SPARC32PLUS 18	/* Sun's "v8plus" */

#define EM_PPC	       20	/* PowerPC */

/*
 * This is an interim value that we will use until the committee comes
 * up with a final number.
 */
#define EM_ALPHA	0x9026


/* 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_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 ELF32_ST_BIND(x) ((x) >> 4)
#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)

/* Symbolic values for the entries in the auxiliary table
   put on the initial stack */
#define AT_NULL   0	/* end of vector */
#define AT_IGNORE 1	/* entry should be ignored */
#define AT_EXECFD 2	/* file descriptor of program */
#define AT_PHDR   3	/* program headers for program */
#define AT_PHENT  4	/* size of program header entry */
#define AT_PHNUM  5	/* number of program headers */
#define AT_PAGESZ 6	/* system page size */
#define AT_BASE   7	/* base address of interpreter */
#define AT_FLAGS  8	/* flags */
#define AT_ENTRY  9	/* entry point of program */
#define AT_NOTELF 10	/* program is not ELF */
#define AT_UID    11	/* real uid */
#define AT_EUID   12	/* effective uid */
#define AT_GID    13	/* real gid */
#define AT_EGID   14	/* effective gid */


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

typedef struct {
  unsigned long long d_tag;		/* entry tag value */
  union {
    unsigned long long d_val;
    unsigned long long 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 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_386_GOTPC	10
#define R_386_NUM	11

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

typedef struct elf64_rel {
  unsigned long long r_offset;	/* Location at which to apply the action */
  unsigned long long 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 {
  unsigned long long r_offset;	/* Location at which to apply the action */
  unsigned long long r_info;	/* index and type of relocation */
  unsigned long long 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 {
  unsigned int	st_name;		/* Symbol name, index in string tbl */
  unsigned char	st_info;		/* Type and binding attributes */
  unsigned char	st_other;		/* No defined meaning, 0 */
  unsigned short st_shndx;		/* Associated section index */
  unsigned long long st_value;		/* Value of the symbol */
  unsigned long long 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[16];		/* ELF "magic number" */
  short int e_type;
  short unsigned int e_machine;
  int   e_version;
  unsigned long long e_entry;		/* Entry point virtual address */
  unsigned long long e_phoff;		/* Program header table file offset */
  unsigned long long e_shoff;		/* Section header table file offset */
  int   e_flags;
  short int e_ehsize;
  short int e_phentsize;
  short int e_phnum;
  short int e_shentsize;
  short int e_shnum;
  short int 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 {
  int p_type;
  int p_flags;
  unsigned long long p_offset;		/* Segment file offset */
  unsigned long long p_vaddr;		/* Segment virtual address */
  unsigned long long p_paddr;		/* Segment physical address */
  unsigned long long p_filesz;		/* Segment size in file */
  unsigned long long p_memsz;		/* Segment size in memory */
  unsigned long long 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_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 {
  unsigned int	sh_name;		/* Section name, index in string tbl */
  unsigned int	sh_type;		/* Type of section */
  unsigned long long sh_flags;		/* Miscellaneous section attributes */
  unsigned long long sh_addr;		/* Section virtual addr at execution */
  unsigned long long sh_offset;		/* Section file offset */
  unsigned long long sh_size;		/* Size of section in bytes */
  unsigned int	sh_link;		/* Index of another section */
  unsigned int	sh_info;		/* Additional section information */
  unsigned long long sh_addralign;	/* Section alignment */
  unsigned long long 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_PAD		7

#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

/* Notes used in ET_CORE */
#define NT_PRSTATUS	1
#define NT_PRFPREG	2
#define NT_PRPSINFO	3
#define NT_TASKSTRUCT	4

/* 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 */
/*
 * For now we use the 32 bit version of the structure until we figure
 * out whether we need anything better.  Note - on the Alpha, "unsigned int"
 * is only 32 bits.
 */
typedef struct elf64_note {
  unsigned int	n_namesz;	/* Name size */
  unsigned int	n_descsz;	/* Content size */
  unsigned int	n_type;		/* Content type */
} Elf64_Nhdr;

#define ELF_START_MMAP 0x80000000

#if ELF_CLASS == ELFCLASS32

extern Elf32_Dyn _DYNAMIC [];
#define elfhdr		elf32_hdr
#define elf_phdr	elf32_phdr
#define elf_note	elf32_note

#else

extern Elf64_Dyn _DYNAMIC [];
#define elfhdr		elf64_hdr
#define elf_phdr	elf64_phdr
#define elf_note	elf64_note

#endif
Commit	Line	Data
31e31b8a FB	1	/*
	2	* ELF register definitions..
	3	*/
	4
	5	#include <inttypes.h>
	6
	7	typedef uint32_t elf_greg_t;
	8
01ffc75b	9	#define ELF_NGREG (sizeof (struct target_pt_regs) / sizeof(elf_greg_t))
31e31b8a FB	10	typedef elf_greg_t elf_gregset_t[ELF_NGREG];
	11
	12	typedef struct user_i387_struct elf_fpregset_t;
	13
	14	/*
	15	* This is used to ensure we don't load something for the wrong architecture.
	16	*/
	17	#define elf_check_arch(x) ( ((x) == EM_386) \|\| ((x) == EM_486) )
	18
	19	/*
	20	* These are used to set parameters in the core dumps.
	21	*/
	22	#define ELF_CLASS ELFCLASS32
	23	#define ELF_DATA ELFDATA2LSB;
	24	#define ELF_ARCH EM_386
	25
	26	/* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
	27	starts %edx contains a pointer to a function which might be
	28	registered using `atexit'. This provides a mean for the
	29	dynamic linker to call DT_FINI functions for shared libraries
	30	that have been loaded before the code runs.
	31
	32	A value of 0 tells we have no such handler. */
	33	#define ELF_PLAT_INIT(_r) _r->edx = 0
	34
	35	#define USE_ELF_CORE_DUMP
	36	#define ELF_EXEC_PAGESIZE 4096
	37
	38
	39	typedef uint32_t Elf32_Addr;
	40	typedef uint16_t Elf32_Half;
	41	typedef uint32_t Elf32_Off;
	42	typedef int32_t Elf32_Sword;
	43	typedef uint32_t Elf32_Word;
	44
	45	/* These constants are for the segment types stored in the image headers */
	46	#define PT_NULL 0
	47	#define PT_LOAD 1
	48	#define PT_DYNAMIC 2
	49	#define PT_INTERP 3
	50	#define PT_NOTE 4
	51	#define PT_SHLIB 5
	52	#define PT_PHDR 6
	53	#define PT_LOPROC 0x70000000
	54	#define PT_HIPROC 0x7fffffff
	55
	56	/* These constants define the different elf file types */
	57	#define ET_NONE 0
	58	#define ET_REL 1
	59	#define ET_EXEC 2
	60	#define ET_DYN 3
	61	#define ET_CORE 4
	62	#define ET_LOPROC 5
	63	#define ET_HIPROC 6
	64
	65	/* These constants define the various ELF target machines */
	66	#define EM_NONE 0
	67	#define EM_M32 1
	68	#define EM_SPARC 2
	69	#define EM_386 3
	70	#define EM_68K 4
	71	#define EM_88K 5
	72	#define EM_486 6 /* Perhaps disused */
	73	#define EM_860 7
74
75	#define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */
76
77	#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */
78
79	#define EM_SPARC64 11 /* SPARC v9 (not official) 64-bit */
80
81	#define EM_PARISC 15 /* HPPA */
82
83	#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */
84
85	#define EM_PPC 20 /* PowerPC */
86
87	/*
88	* This is an interim value that we will use until the committee comes
89	* up with a final number.
90	*/
91	#define EM_ALPHA 0x9026
92
93
94	/* This is the info that is needed to parse the dynamic section of the file */
95	#define DT_NULL 0
96	#define DT_NEEDED 1
97	#define DT_PLTRELSZ 2
98	#define DT_PLTGOT 3
99	#define DT_HASH 4
100	#define DT_STRTAB 5
101	#define DT_SYMTAB 6
102	#define DT_RELA 7
103	#define DT_RELASZ 8
104	#define DT_RELAENT 9
105	#define DT_STRSZ 10
106	#define DT_SYMENT 11
107	#define DT_INIT 12
108	#define DT_FINI 13
109	#define DT_SONAME 14
110	#define DT_RPATH 15
111	#define DT_SYMBOLIC 16
112	#define DT_REL 17
113	#define DT_RELSZ 18
114	#define DT_RELENT 19
115	#define DT_PLTREL 20
116	#define DT_DEBUG 21
117	#define DT_TEXTREL 22
118	#define DT_JMPREL 23
119	#define DT_LOPROC 0x70000000
120	#define DT_HIPROC 0x7fffffff
121
122	/* This info is needed when parsing the symbol table */
123	#define STB_LOCAL 0
124	#define STB_GLOBAL 1
125	#define STB_WEAK 2
126
127	#define STT_NOTYPE 0
128	#define STT_OBJECT 1
129	#define STT_FUNC 2
130	#define STT_SECTION 3
131	#define STT_FILE 4
132
133	#define ELF32_ST_BIND(x) ((x) >> 4)
134	#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)
135
136	/* Symbolic values for the entries in the auxiliary table
137	put on the initial stack */
138	#define AT_NULL 0 /* end of vector */
139	#define AT_IGNORE 1 /* entry should be ignored */
140	#define AT_EXECFD 2 /* file descriptor of program */
141	#define AT_PHDR 3 /* program headers for program */
142	#define AT_PHENT 4 /* size of program header entry */
143	#define AT_PHNUM 5 /* number of program headers */
144	#define AT_PAGESZ 6 /* system page size */
145	#define AT_BASE 7 /* base address of interpreter */
146	#define AT_FLAGS 8 /* flags */
147	#define AT_ENTRY 9 /* entry point of program */
148	#define AT_NOTELF 10 /* program is not ELF */
149	#define AT_UID 11 /* real uid */
150	#define AT_EUID 12 /* effective uid */
151	#define AT_GID 13 /* real gid */
152	#define AT_EGID 14 /* effective gid */
153
154
155	typedef struct dynamic{
156	Elf32_Sword d_tag;
157	union{
158	Elf32_Sword d_val;
159	Elf32_Addr d_ptr;
160	} d_un;
161	} Elf32_Dyn;
162
163	typedef struct {
164	unsigned long long d_tag; /* entry tag value */
165	union {
166	unsigned long long d_val;
167	unsigned long long d_ptr;
168	} d_un;
169	} Elf64_Dyn;
170
171	/* The following are used with relocations */
172	#define ELF32_R_SYM(x) ((x) >> 8)
173	#define ELF32_R_TYPE(x) ((x) & 0xff)
174
175	#define R_386_NONE 0
176	#define R_386_32 1
177	#define R_386_PC32 2
178	#define R_386_GOT32 3
179	#define R_386_PLT32 4
180	#define R_386_COPY 5
181	#define R_386_GLOB_DAT 6
182	#define R_386_JMP_SLOT 7
183	#define R_386_RELATIVE 8
184	#define R_386_GOTOFF 9
185	#define R_386_GOTPC 10
186	#define R_386_NUM 11
187
188	typedef struct elf32_rel {
189	Elf32_Addr r_offset;
190	Elf32_Word r_info;
191	} Elf32_Rel;
192
193	typedef struct elf64_rel {
194	unsigned long long r_offset; /* Location at which to apply the action */
195	unsigned long long r_info; /* index and type of relocation */
196	} Elf64_Rel;
197
198	typedef struct elf32_rela{
199	Elf32_Addr r_offset;
200	Elf32_Word r_info;
201	Elf32_Sword r_addend;
202	} Elf32_Rela;
203
204	typedef struct elf64_rela {
205	unsigned long long r_offset; /* Location at which to apply the action */
206	unsigned long long r_info; /* index and type of relocation */
207	unsigned long long r_addend; /* Constant addend used to compute value */
208	} Elf64_Rela;
209
210	typedef struct elf32_sym{
211	Elf32_Word st_name;
212	Elf32_Addr st_value;
213	Elf32_Word st_size;
214	unsigned char st_info;
215	unsigned char st_other;
216	Elf32_Half st_shndx;
217	} Elf32_Sym;
218
219	typedef struct elf64_sym {
220	unsigned int st_name; /* Symbol name, index in string tbl */
221	unsigned char st_info; /* Type and binding attributes */
222	unsigned char st_other; /* No defined meaning, 0 */
223	unsigned short st_shndx; /* Associated section index */
224	unsigned long long st_value; /* Value of the symbol */
225	unsigned long long st_size; /* Associated symbol size */
226	} Elf64_Sym;
227
228
229	#define EI_NIDENT 16
230
231	typedef struct elf32_hdr{
232	unsigned char e_ident[EI_NIDENT];
233	Elf32_Half e_type;
234	Elf32_Half e_machine;
235	Elf32_Word e_version;
236	Elf32_Addr e_entry; /* Entry point */
237	Elf32_Off e_phoff;
238	Elf32_Off e_shoff;
239	Elf32_Word e_flags;
240	Elf32_Half e_ehsize;
241	Elf32_Half e_phentsize;
242	Elf32_Half e_phnum;
243	Elf32_Half e_shentsize;
244	Elf32_Half e_shnum;
245	Elf32_Half e_shstrndx;
246	} Elf32_Ehdr;
247
248	typedef struct elf64_hdr {
249	unsigned char e_ident[16]; /* ELF "magic number" */
250	short int e_type;
251	short unsigned int e_machine;
252	int e_version;
253	unsigned long long e_entry; /* Entry point virtual address */
254	unsigned long long e_phoff; /* Program header table file offset */
255	unsigned long long e_shoff; /* Section header table file offset */
256	int e_flags;
257	short int e_ehsize;
258	short int e_phentsize;
259	short int e_phnum;
260	short int e_shentsize;
261	short int e_shnum;
262	short int e_shstrndx;
263	} Elf64_Ehdr;
264
265	/* These constants define the permissions on sections in the program
266	header, p_flags. */
267	#define PF_R 0x4
268	#define PF_W 0x2
269	#define PF_X 0x1
270
271	typedef struct elf32_phdr{
272	Elf32_Word p_type;
273	Elf32_Off p_offset;
274	Elf32_Addr p_vaddr;
275	Elf32_Addr p_paddr;
276	Elf32_Word p_filesz;
277	Elf32_Word p_memsz;
278	Elf32_Word p_flags;
279	Elf32_Word p_align;
280	} Elf32_Phdr;
281
282	typedef struct elf64_phdr {
283	int p_type;
284	int p_flags;
285	unsigned long long p_offset; /* Segment file offset */
286	unsigned long long p_vaddr; /* Segment virtual address */
287	unsigned long long p_paddr; /* Segment physical address */
288	unsigned long long p_filesz; /* Segment size in file */
289	unsigned long long p_memsz; /* Segment size in memory */
290	unsigned long long p_align; /* Segment alignment, file & memory */
291	} Elf64_Phdr;
292
293	/* sh_type */
294	#define SHT_NULL 0
295	#define SHT_PROGBITS 1
296	#define SHT_SYMTAB 2
297	#define SHT_STRTAB 3
298	#define SHT_RELA 4
299	#define SHT_HASH 5
300	#define SHT_DYNAMIC 6
301	#define SHT_NOTE 7
302	#define SHT_NOBITS 8
303	#define SHT_REL 9
304	#define SHT_SHLIB 10
305	#define SHT_DYNSYM 11
306	#define SHT_NUM 12
307	#define SHT_LOPROC 0x70000000
308	#define SHT_HIPROC 0x7fffffff
309	#define SHT_LOUSER 0x80000000
310	#define SHT_HIUSER 0xffffffff
311
312	/* sh_flags */
313	#define SHF_WRITE 0x1
314	#define SHF_ALLOC 0x2
315	#define SHF_EXECINSTR 0x4
316	#define SHF_MASKPROC 0xf0000000
317
318	/* special section indexes */
319	#define SHN_UNDEF 0
320	#define SHN_LORESERVE 0xff00
321	#define SHN_LOPROC 0xff00
322	#define SHN_HIPROC 0xff1f
323	#define SHN_ABS 0xfff1
324	#define SHN_COMMON 0xfff2
325	#define SHN_HIRESERVE 0xffff
326
327	typedef struct {
328	Elf32_Word sh_name;
329	Elf32_Word sh_type;
330	Elf32_Word sh_flags;
331	Elf32_Addr sh_addr;
332	Elf32_Off sh_offset;
333	Elf32_Word sh_size;
334	Elf32_Word sh_link;
335	Elf32_Word sh_info;
336	Elf32_Word sh_addralign;
337	Elf32_Word sh_entsize;
338	} Elf32_Shdr;
339
340	typedef struct elf64_shdr {
341	unsigned int sh_name; /* Section name, index in string tbl */
342	unsigned int sh_type; /* Type of section */
343	unsigned long long sh_flags; /* Miscellaneous section attributes */
344	unsigned long long sh_addr; /* Section virtual addr at execution */
345	unsigned long long sh_offset; /* Section file offset */
346	unsigned long long sh_size; /* Size of section in bytes */
347	unsigned int sh_link; /* Index of another section */
348	unsigned int sh_info; /* Additional section information */
349	unsigned long long sh_addralign; /* Section alignment */
350	unsigned long long sh_entsize; /* Entry size if section holds table */
351	} Elf64_Shdr;
352
353	#define EI_MAG0 0 /* e_ident[] indexes */
354	#define EI_MAG1 1
355	#define EI_MAG2 2
356	#define EI_MAG3 3
357	#define EI_CLASS 4
358	#define EI_DATA 5
359	#define EI_VERSION 6
360	#define EI_PAD 7
361
362	#define ELFMAG0 0x7f /* EI_MAG */
363	#define ELFMAG1 'E'
364	#define ELFMAG2 'L'
365	#define ELFMAG3 'F'
366	#define ELFMAG "\177ELF"
367	#define SELFMAG 4
368
369	#define ELFCLASSNONE 0 /* EI_CLASS */
370	#define ELFCLASS32 1
371	#define ELFCLASS64 2
372	#define ELFCLASSNUM 3
373
374	#define ELFDATANONE 0 /* e_ident[EI_DATA] */
375	#define ELFDATA2LSB 1
376	#define ELFDATA2MSB 2
377
378	#define EV_NONE 0 /* e_version, EI_VERSION */
379	#define EV_CURRENT 1
380	#define EV_NUM 2
381
382	/* Notes used in ET_CORE */
383	#define NT_PRSTATUS 1
384	#define NT_PRFPREG 2
385	#define NT_PRPSINFO 3
386	#define NT_TASKSTRUCT 4
387
388	/* Note header in a PT_NOTE section */
389	typedef struct elf32_note {
390	Elf32_Word n_namesz; /* Name size */
391	Elf32_Word n_descsz; /* Content size */
392	Elf32_Word n_type; /* Content type */
393	} Elf32_Nhdr;
394
395	/* Note header in a PT_NOTE section */
396	/*
397	* For now we use the 32 bit version of the structure until we figure
398	* out whether we need anything better. Note - on the Alpha, "unsigned int"
399	* is only 32 bits.
400	*/
401	typedef struct elf64_note {
402	unsigned int n_namesz; /* Name size */
403	unsigned int n_descsz; /* Content size */
404	unsigned int n_type; /* Content type */
405	} Elf64_Nhdr;
406
407	#define ELF_START_MMAP 0x80000000
408
409	#if ELF_CLASS == ELFCLASS32
410
411	extern Elf32_Dyn _DYNAMIC [];
412	#define elfhdr elf32_hdr
413	#define elf_phdr elf32_phdr
414	#define elf_note elf32_note
415
416	#else
417
418	extern Elf64_Dyn _DYNAMIC [];
419	#define elfhdr elf64_hdr
420	#define elf_phdr elf64_phdr
421	#define elf_note elf64_note
422
423	#endif
424
425