elf.h

qemu虚拟机代码

#ifndef _QEMU_ELF_H
#define _QEMU_ELF_H

#include <inttypes.h>

/* 32-bit ELF base types. */
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;

/* 64-bit ELF base types. */
typedef uint64_t Elf64_Addr;
typedef uint16_t Elf64_Half;
typedef int16_t	 Elf64_SHalf;
typedef uint64_t Elf64_Off;
typedef int32_t	 Elf64_Sword;
typedef uint32_t Elf64_Word;
typedef uint64_t Elf64_Xword;
typedef int64_t  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_LOPROC  0x70000000
#define PT_HIPROC  0x7fffffff
#define PT_MIPS_REGINFO		0x70000000
#define PT_MIPS_OPTIONS		0x70000001

/* Flags in the e_flags field of the header */
/* MIPS architecture level. */
#define EF_MIPS_ARCH_1		0x00000000	/* -mips1 code.  */
#define EF_MIPS_ARCH_2		0x10000000	/* -mips2 code.  */
#define EF_MIPS_ARCH_3		0x20000000	/* -mips3 code.  */
#define EF_MIPS_ARCH_4		0x30000000	/* -mips4 code.  */
#define EF_MIPS_ARCH_5		0x40000000	/* -mips5 code.  */
#define EF_MIPS_ARCH_32		0x50000000	/* MIPS32 code.  */
#define EF_MIPS_ARCH_64		0x60000000	/* MIPS64 code.  */

/* The ABI of a file. */
#define EF_MIPS_ABI_O32		0x00001000	/* O32 ABI.  */
#define EF_MIPS_ABI_O64		0x00002000	/* O32 extended for 64 bit.  */

#define EF_MIPS_NOREORDER 0x00000001
#define EF_MIPS_PIC       0x00000002
#define EF_MIPS_CPIC      0x00000004
#define EF_MIPS_ABI2		0x00000020
#define EF_MIPS_OPTIONS_FIRST	0x00000080
#define EF_MIPS_32BITMODE	0x00000100
#define EF_MIPS_ABI		0x0000f000
#define EF_MIPS_ARCH      0xf0000000

/* 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

/* 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_PARISC      15	/* HPPA */

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

#define EM_PPC	       20	/* PowerPC */
#define EM_PPC64       21       /* PowerPC64 */

#define EM_ARM		40		/* ARM */

#define EM_SH	       42	/* SuperH */

#define EM_SPARCV9     43	/* SPARC v9 64-bit */

#define EM_IA_64	50	/* HP/Intel IA-64 */

#define EM_X86_64	62	/* AMD x86-64 */

#define EM_S390		22	/* IBM S/390 */

#define EM_CRIS         76      /* Axis Communications 32-bit embedded processor */

#define EM_V850		87	/* NEC v850 */

#define EM_H8_300H      47      /* Hitachi H8/300H */
#define EM_H8S          48      /* Hitachi H8S     */

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

/* Bogus old v850 magic number, used by old tools.  */
#define EM_CYGNUS_V850	0x9080

/*
 * This is the old interim value for S/390 architecture
 */
#define EM_S390_OLD     0xA390

/* 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
#define DT_MIPS_RLD_VERSION	0x70000001
#define DT_MIPS_TIME_STAMP	0x70000002
#define DT_MIPS_ICHECKSUM	0x70000003
#define DT_MIPS_IVERSION	0x70000004
#define DT_MIPS_FLAGS		0x70000005
  #define RHF_NONE		  0
  #define RHF_HARDWAY		  1
  #define RHF_NOTPOT		  2
#define DT_MIPS_BASE_ADDRESS	0x70000006
#define DT_MIPS_CONFLICT	0x70000008
#define DT_MIPS_LIBLIST		0x70000009
#define DT_MIPS_LOCAL_GOTNO	0x7000000a
#define DT_MIPS_CONFLICTNO	0x7000000b
#define DT_MIPS_LIBLISTNO	0x70000010
#define DT_MIPS_SYMTABNO	0x70000011
#define DT_MIPS_UNREFEXTNO	0x70000012
#define DT_MIPS_GOTSYM		0x70000013
#define DT_MIPS_HIPAGENO	0x70000014
#define DT_MIPS_RLD_MAP		0x70000016

/* 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 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)

/* 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 */
#define AT_PLATFORM 15  /* string identifying CPU for optimizations */
#define AT_HWCAP  16    /* arch dependent hints at CPU capabilities */
#define AT_CLKTCK 17	/* frequency at which times() increments */

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)

#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

#define R_MIPS_NONE		0
#define R_MIPS_16		1
#define R_MIPS_32		2
#define R_MIPS_REL32		3
#define R_MIPS_26		4
#define R_MIPS_HI16		5
#define R_MIPS_LO16		6
#define R_MIPS_GPREL16		7
#define R_MIPS_LITERAL		8
#define R_MIPS_GOT16		9
#define R_MIPS_PC16		10
#define R_MIPS_CALL16		11
#define R_MIPS_GPREL32		12
/* The remaining relocs are defined on Irix, although they are not
   in the MIPS ELF ABI.  */
#define R_MIPS_UNUSED1		13
#define R_MIPS_UNUSED2		14
#define R_MIPS_UNUSED3		15
#define R_MIPS_SHIFT5		16
#define R_MIPS_SHIFT6		17
#define R_MIPS_64		18
#define R_MIPS_GOT_DISP		19
#define R_MIPS_GOT_PAGE		20
#define R_MIPS_GOT_OFST		21
/*
 * The following two relocation types are specified in the MIPS ABI
 * conformance guide version 1.2 but not yet in the psABI.
 */
#define R_MIPS_GOTHI16		22
#define R_MIPS_GOTLO16		23
#define R_MIPS_SUB		24
#define R_MIPS_INSERT_A		25
#define R_MIPS_INSERT_B		26
#define R_MIPS_DELETE		27
#define R_MIPS_HIGHER		28
#define R_MIPS_HIGHEST		29
/*
 * The following two relocation types are specified in the MIPS ABI
 * conformance guide version 1.2 but not yet in the psABI.
 */
#define R_MIPS_CALLHI16		30
#define R_MIPS_CALLLO16		31
/*
 * This range is reserved for vendor specific relocations.
 */
#define R_MIPS_LOVENDOR		100
#define R_MIPS_HIVENDOR		127


/*
 * Sparc ELF relocation types
 */
#define	R_SPARC_NONE		0
#define	R_SPARC_8		1
#define	R_SPARC_16		2
#define	R_SPARC_32		3
#define	R_SPARC_DISP8		4
#define	R_SPARC_DISP16		5
#define	R_SPARC_DISP32		6
#define	R_SPARC_WDISP30		7
#define	R_SPARC_WDISP22		8
#define	R_SPARC_HI22		9
#define	R_SPARC_22		10
#define	R_SPARC_13		11
#define	R_SPARC_LO10		12
#define	R_SPARC_GOT10		13
#define	R_SPARC_GOT13		14
#define	R_SPARC_GOT22		15
#define	R_SPARC_PC10		16
#define	R_SPARC_PC22		17
#define	R_SPARC_WPLT30		18
#define	R_SPARC_COPY		19
#define	R_SPARC_GLOB_DAT	20
#define	R_SPARC_JMP_SLOT	21
#define	R_SPARC_RELATIVE	22
#define	R_SPARC_UA32		23
#define R_SPARC_PLT32		24
#define R_SPARC_HIPLT22		25
#define R_SPARC_LOPLT10		26
#define R_SPARC_PCPLT32		27
#define R_SPARC_PCPLT22		28
#define R_SPARC_PCPLT10		29
#define R_SPARC_10		30
#define R_SPARC_11		31
#define R_SPARC_64		32
#define R_SPARC_WDISP16		40
#define R_SPARC_WDISP19		41
#define R_SPARC_7		43
#define R_SPARC_5		44
#define R_SPARC_6		45

/* Bits present in AT_HWCAP, primarily for Sparc32.  */

#define HWCAP_SPARC_FLUSH       1    /* CPU supports flush instruction. */
#define HWCAP_SPARC_STBAR       2
#define HWCAP_SPARC_SWAP        4
#define HWCAP_SPARC_MULDIV      8
#define HWCAP_SPARC_V9		16
#define HWCAP_SPARC_ULTRA3	32

/*
 * 68k ELF relocation types
 */
#define R_68K_NONE	0
#define R_68K_32	1
#define R_68K_16	2
#define R_68K_8		3
#define R_68K_PC32	4
#define R_68K_PC16	5
#define R_68K_PC8	6
#define R_68K_GOT32	7
#define R_68K_GOT16	8
#define R_68K_GOT8	9
#define R_68K_GOT32O	10
#define R_68K_GOT16O	11
#define R_68K_GOT8O	12
#define R_68K_PLT32	13
#define R_68K_PLT16	14
#define R_68K_PLT8	15
#define R_68K_PLT32O	16
#define R_68K_PLT16O	17
#define R_68K_PLT8O	18
#define R_68K_COPY	19
#define R_68K_GLOB_DAT	20
#define R_68K_JMP_SLOT	21
#define R_68K_RELATIVE	22

/*
 * Alpha ELF relocation types
 */
#define R_ALPHA_NONE            0       /* No reloc */
#define R_ALPHA_REFLONG         1       /* Direct 32 bit */
#define R_ALPHA_REFQUAD         2       /* Direct 64 bit */
#define R_ALPHA_GPREL32         3       /* GP relative 32 bit */
#define R_ALPHA_LITERAL         4       /* GP relative 16 bit w/optimization */
#define R_ALPHA_LITUSE          5       /* Optimization hint for LITERAL */
#define R_ALPHA_GPDISP          6       /* Add displacement to GP */
#define R_ALPHA_BRADDR          7       /* PC+4 relative 23 bit shifted */
#define R_ALPHA_HINT            8       /* PC+4 relative 16 bit shifted */
#define R_ALPHA_SREL16          9       /* PC relative 16 bit */
#define R_ALPHA_SREL32          10      /* PC relative 32 bit */
#define R_ALPHA_SREL64          11      /* PC relative 64 bit */
#define R_ALPHA_GPRELHIGH       17      /* GP relative 32 bit, high 16 bits */
#define R_ALPHA_GPRELLOW        18      /* GP relative 32 bit, low 16 bits */