elf_file.h

Source Code of jlinkserver for Segger JLink

#define DT_GNU_CONFLICTSZ 0x6ffffdf6	/* Size of conflict section */
#define DT_GNU_LIBLISTSZ 0x6ffffdf7	/* Size of library list */
#define DT_CHECKSUM	0x6ffffdf8
#define DT_PLTPADSZ	0x6ffffdf9
#define DT_MOVEENT	0x6ffffdfa
#define DT_MOVESZ	0x6ffffdfb
#define DT_FEATURE_1	0x6ffffdfc	/* Feature selection (DTF_*).  */
#define DT_POSFLAG_1	0x6ffffdfd	/* Flags for DT_* entries, effecting
					   the following DT_* entry.  */
#define DT_SYMINSZ	0x6ffffdfe	/* Size of syminfo table (in bytes) */
#define DT_SYMINENT	0x6ffffdff	/* Entry size of syminfo */
#define DT_VALRNGHI	0x6ffffdff
#define DT_VALTAGIDX(tag)	(DT_VALRNGHI - (tag))	/* Reverse order! */
#define DT_VALNUM 12

/* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the
   Dyn.d_un.d_ptr field of the Elf*_Dyn structure.

   If any adjustment is made to the ELF object after it has been
   built these entries will need to be adjusted.  */
#define DT_ADDRRNGLO	0x6ffffe00
#define DT_GNU_CONFLICT	0x6ffffef8	/* Start of conflict section */
#define DT_GNU_LIBLIST	0x6ffffef9	/* Library list */
#define DT_CONFIG	0x6ffffefa	/* Configuration information.  */
#define DT_DEPAUDIT	0x6ffffefb	/* Dependency auditing.  */
#define DT_AUDIT	0x6ffffefc	/* Object auditing.  */
#define	DT_PLTPAD	0x6ffffefd	/* PLT padding.  */
#define	DT_MOVETAB	0x6ffffefe	/* Move table.  */
#define DT_SYMINFO	0x6ffffeff	/* Syminfo table.  */
#define DT_ADDRRNGHI	0x6ffffeff
#define DT_ADDRTAGIDX(tag)	(DT_ADDRRNGHI - (tag))	/* Reverse order! */
#define DT_ADDRNUM 10

/* The versioning entry types.  The next are defined as part of the
   GNU extension.  */
#define DT_VERSYM	0x6ffffff0

#define DT_RELACOUNT	0x6ffffff9
#define DT_RELCOUNT	0x6ffffffa

/* These were chosen by Sun.  */
#define DT_FLAGS_1	0x6ffffffb	/* State flags, see DF_1_* below.  */
#define	DT_VERDEF	0x6ffffffc	/* Address of version definition
					   table */
#define	DT_VERDEFNUM	0x6ffffffd	/* Number of version definitions */
#define	DT_VERNEED	0x6ffffffe	/* Address of table with needed
					   versions */
#define	DT_VERNEEDNUM	0x6fffffff	/* Number of needed versions */
#define DT_VERSIONTAGIDX(tag)	(DT_VERNEEDNUM - (tag))	/* Reverse order! */
#define DT_VERSIONTAGNUM 16

/* Sun added these machine-independent extensions in the "processor-specific"
   range.  Be compatible.  */
#define DT_AUXILIARY    0x7ffffffd      /* Shared object to load before self */
#define DT_FILTER       0x7fffffff      /* Shared object to get values from */
#define DT_EXTRATAGIDX(tag)	((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1)
#define DT_EXTRANUM	3

/* Values of `d_un.d_val' in the DT_FLAGS entry.  */
#define DF_ORIGIN	0x00000001	/* Object may use DF_ORIGIN */
#define DF_SYMBOLIC	0x00000002	/* Symbol resolutions starts here */
#define DF_TEXTREL	0x00000004	/* Object contains text relocations */
#define DF_BIND_NOW	0x00000008	/* No lazy binding for this object */
#define DF_STATIC_TLS	0x00000010	/* Module uses the static TLS model */

/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1
   entry in the dynamic section.  */
#define DF_1_NOW	0x00000001	/* Set RTLD_NOW for this object.  */
#define DF_1_GLOBAL	0x00000002	/* Set RTLD_GLOBAL for this object.  */
#define DF_1_GROUP	0x00000004	/* Set RTLD_GROUP for this object.  */
#define DF_1_NODELETE	0x00000008	/* Set RTLD_NODELETE for this object.*/
#define DF_1_LOADFLTR	0x00000010	/* Trigger filtee loading at runtime.*/
#define DF_1_INITFIRST	0x00000020	/* Set RTLD_INITFIRST for this object*/
#define DF_1_NOOPEN	0x00000040	/* Set RTLD_NOOPEN for this object.  */
#define DF_1_ORIGIN	0x00000080	/* $ORIGIN must be handled.  */
#define DF_1_DIRECT	0x00000100	/* Direct binding enabled.  */
#define DF_1_TRANS	0x00000200
#define DF_1_INTERPOSE	0x00000400	/* Object is used to interpose.  */
#define DF_1_NODEFLIB	0x00000800	/* Ignore default lib search path.  */
#define DF_1_NODUMP	0x00001000	/* Object can't be dldump'ed.  */
#define DF_1_CONFALT	0x00002000	/* Configuration alternative created.*/
#define DF_1_ENDFILTEE	0x00004000	/* Filtee terminates filters search. */
#define	DF_1_DISPRELDNE	0x00008000	/* Disp reloc applied at build time. */
#define	DF_1_DISPRELPND	0x00010000	/* Disp reloc applied at run-time.  */

/* Flags for the feature selection in DT_FEATURE_1.  */
#define DTF_1_PARINIT	0x00000001
#define DTF_1_CONFEXP	0x00000002

/* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry.  */
#define DF_P1_LAZYLOAD	0x00000001	/* Lazyload following object.  */
#define DF_P1_GROUPPERM	0x00000002	/* Symbols from next object are not
					   generally available.  */

/* Version definition sections.  */

typedef struct
{
  Elf32_Half	vd_version;		/* Version revision */
  Elf32_Half	vd_flags;		/* Version information */
  Elf32_Half	vd_ndx;			/* Version Index */
  Elf32_Half	vd_cnt;			/* Number of associated aux entries */
  Elf32_Word	vd_hash;		/* Version name hash value */
  Elf32_Word	vd_aux;			/* Offset in bytes to verdaux array */
  Elf32_Word	vd_next;		/* Offset in bytes to next verdef
					   entry */
} Elf32_Verdef;

typedef struct
{
  Elf64_Half	vd_version;		/* Version revision */
  Elf64_Half	vd_flags;		/* Version information */
  Elf64_Half	vd_ndx;			/* Version Index */
  Elf64_Half	vd_cnt;			/* Number of associated aux entries */
  Elf64_Word	vd_hash;		/* Version name hash value */
  Elf64_Word	vd_aux;			/* Offset in bytes to verdaux array */
  Elf64_Word	vd_next;		/* Offset in bytes to next verdef
					   entry */
} Elf64_Verdef;


/* Legal values for vd_version (version revision).  */
#define VER_DEF_NONE	0		/* No version */
#define VER_DEF_CURRENT	1		/* Current version */
#define VER_DEF_NUM	2		/* Given version number */

/* Legal values for vd_flags (version information flags).  */
#define VER_FLG_BASE	0x1		/* Version definition of file itself */
#define VER_FLG_WEAK	0x2		/* Weak version identifier */

/* Versym symbol index values.  */
#define	VER_NDX_LOCAL		0	/* Symbol is local.  */
#define	VER_NDX_GLOBAL		1	/* Symbol is global.  */
#define	VER_NDX_LORESERVE	0xff00	/* Beginning of reserved entries.  */
#define	VER_NDX_ELIMINATE	0xff01	/* Symbol is to be eliminated.  */

/* Auxialiary version information.  */

typedef struct
{
  Elf32_Word	vda_name;		/* Version or dependency names */
  Elf32_Word	vda_next;		/* Offset in bytes to next verdaux
					   entry */
} Elf32_Verdaux;

typedef struct
{
  Elf64_Word	vda_name;		/* Version or dependency names */
  Elf64_Word	vda_next;		/* Offset in bytes to next verdaux
					   entry */
} Elf64_Verdaux;


/* Version dependency section.  */

typedef struct
{
  Elf32_Half	vn_version;		/* Version of structure */
  Elf32_Half	vn_cnt;			/* Number of associated aux entries */
  Elf32_Word	vn_file;		/* Offset of filename for this
					   dependency */
  Elf32_Word	vn_aux;			/* Offset in bytes to vernaux array */
  Elf32_Word	vn_next;		/* Offset in bytes to next verneed
					   entry */
} Elf32_Verneed;

typedef struct
{
  Elf64_Half	vn_version;		/* Version of structure */
  Elf64_Half	vn_cnt;			/* Number of associated aux entries */
  Elf64_Word	vn_file;		/* Offset of filename for this
					   dependency */
  Elf64_Word	vn_aux;			/* Offset in bytes to vernaux array */
  Elf64_Word	vn_next;		/* Offset in bytes to next verneed
					   entry */
} Elf64_Verneed;


/* Legal values for vn_version (version revision).  */
#define VER_NEED_NONE	 0		/* No version */
#define VER_NEED_CURRENT 1		/* Current version */
#define VER_NEED_NUM	 2		/* Given version number */

/* Auxiliary needed version information.  */

typedef struct
{
  Elf32_Word	vna_hash;		/* Hash value of dependency name */
  Elf32_Half	vna_flags;		/* Dependency specific information */
  Elf32_Half	vna_other;		/* Unused */
  Elf32_Word	vna_name;		/* Dependency name string offset */
  Elf32_Word	vna_next;		/* Offset in bytes to next vernaux
					   entry */
} Elf32_Vernaux;

typedef struct
{
  Elf64_Word	vna_hash;		/* Hash value of dependency name */
  Elf64_Half	vna_flags;		/* Dependency specific information */
  Elf64_Half	vna_other;		/* Unused */
  Elf64_Word	vna_name;		/* Dependency name string offset */
  Elf64_Word	vna_next;		/* Offset in bytes to next vernaux
					   entry */
} Elf64_Vernaux;


/* Legal values for vna_flags.  */
#define VER_FLG_WEAK	0x2		/* Weak version identifier */


/* Auxiliary vector.  */

/* This vector is normally only used by the program interpreter.  The
   usual definition in an ABI supplement uses the name auxv_t.  The
   vector is not usually defined in a standard <elf.h> file, but it
   can't hurt.  We rename it to avoid conflicts.  The sizes of these
   types are an arrangement between the exec server and the program
   interpreter, so we don't fully specify them here.  */

typedef struct
{
  int a_type;			/* Entry type */
  union
    {
      long int a_val;		/* Integer value */
      void *a_ptr;		/* Pointer value */
      void (*a_fcn) (void);	/* Function pointer value */
    } a_un;
} Elf32_auxv_t;

typedef struct
{
  long int a_type;		/* Entry type */
  union
    {
      long int a_val;		/* Integer value */
      void *a_ptr;		/* Pointer value */
      void (*a_fcn) (void);	/* Function pointer value */
    } a_un;
} Elf64_auxv_t;

/* Legal values for a_type (entry type).  */

#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_CLKTCK	17		/* Frequency of times() */

/* Some more special a_type values describing the hardware.  */
#define AT_PLATFORM	15		/* String identifying platform.  */
#define AT_HWCAP	16		/* Machine dependent hints about
					   processor capabilities.  */

/* This entry gives some information about the FPU initialization
   performed by the kernel.  */
#define AT_FPUCW	18		/* Used FPU control word.  */

/* Cache block sizes.  */
#define AT_DCACHEBSIZE	19		/* Data cache block size.  */
#define AT_ICACHEBSIZE	20		/* Instruction cache block size.  */
#define AT_UCACHEBSIZE	21		/* Unified cache block size.  */

/* A special ignored value for PPC, used by the kernel to control the
   interpretation of the AUXV. Must be > 16.  */
#define AT_IGNOREPPC	22		/* Entry should be ignored.  */

#define	AT_SECURE	23		/* Boolean, was exec setuid-like?  */

/* Pointer to the global system page used for system calls and other
   nice things.  */
#define AT_SYSINFO	32
#define AT_SYSINFO_EHDR	33


/* Note section contents.  Each entry in the note section begins with
   a header of a fixed form.  */

typedef struct
{
  Elf32_Word n_namesz;			/* Length of the note's name.  */
  Elf32_Word n_descsz;			/* Length of the note's descriptor.  */
  Elf32_Word n_type;			/* Type of the note.  */
} Elf32_Nhdr;

typedef struct
{
  Elf64_Word n_namesz;			/* Length of the note's name.  */
  Elf64_Word n_descsz;			/* Length of the note's descriptor.  */
  Elf64_Word n_type;			/* Type of the note.  */
} Elf64_Nhdr;

/* Known names of notes.  */

/* Solaris entries in the note section have this name.  */
#define ELF_NOTE_SOLARIS	"SUNW Solaris"

/* Note entries for GNU systems have this name.  */
#define ELF_NOTE_GNU		"GNU"


/* Defined types of notes for Solaris.  */

/* Value of descriptor (one word) is desired pagesize for the binary.  */
#define ELF_NOTE_PAGESIZE_HINT	1


/* Defined note types for GNU systems.  */

/* ABI information.  The descriptor consists of words:
   word 0: OS descriptor
   word 1: major version of the ABI
   word 2: minor version of the ABI
   word 3: subminor version of the ABI
*/
#define ELF_NOTE_ABI		1

/* Known OSes.  These value can appear in word 0 of an ELF_NOTE_ABI
   note section entry.  */
#define ELF_NOTE_OS_LINUX	0
#define ELF_NOTE_OS_GNU		1