common.h

来自「基于4个mips核的noc设计」· C头文件 代码 · 共 606 行 · 第 1/2 页

#define SHF_MASKPROC	0xF0000000	/* Processor-specific semantics */

/* Values of note segment descriptor types for core files.  */

#define NT_PRSTATUS	1		/* Contains copy of prstatus struct */
#define NT_FPREGSET	2		/* Contains copy of fpregset struct */
#define NT_PRPSINFO	3		/* Contains copy of prpsinfo struct */
#define NT_TASKSTRUCT	4		/* Contains copy of task struct */
#define NT_PRXFPREG     0x46e62b7f	/* Contains a user_xfpregs_struct; */
					/*   note name must be "LINUX".  */

/* Note segments for core files on dir-style procfs systems.  */

#define NT_PSTATUS	10		/* Has a struct pstatus */
#define NT_FPREGS	12		/* Has a struct fpregset */
#define NT_PSINFO	13		/* Has a struct psinfo */
#define NT_LWPSTATUS	16		/* Has a struct lwpstatus_t */
#define NT_LWPSINFO	17		/* Has a struct lwpsinfo_t */
#define NT_WIN32PSTATUS	18		/* Has a struct win32_pstatus */

/* Values of note segment descriptor types for object files.  */
/* (Only for hppa right now.  Should this be moved elsewhere?)  */

#define NT_VERSION	1		/* Contains a version string.  */

/* These three macros disassemble and assemble a symbol table st_info field,
   which contains the symbol binding and symbol type.  The STB_ and STT_
   defines identify the binding and type.  */

#define ELF_ST_BIND(val)		(((unsigned int)(val)) >> 4)
#define ELF_ST_TYPE(val)		((val) & 0xF)
#define ELF_ST_INFO(bind,type)		(((bind) << 4) + ((type) & 0xF))

/* The 64bit and 32bit versions of these macros are identical, but
   the ELF spec defines them, so here they are.  */
#define ELF32_ST_BIND  ELF_ST_BIND
#define ELF32_ST_TYPE  ELF_ST_TYPE
#define ELF32_ST_INFO  ELF_ST_INFO
#define ELF64_ST_BIND  ELF_ST_BIND
#define ELF64_ST_TYPE  ELF_ST_TYPE
#define ELF64_ST_INFO  ELF_ST_INFO

/* This macro disassembles and assembles a symbol's visibility into
   the st_other field.  The STV_ defines specificy the actual visibility.  */

#define ELF_ST_VISIBILITY(v)		((v) & 0x3)
/* The remaining bits in the st_other field are not currently used.
   They should be set to zero.  */

#define ELF32_ST_VISIBILITY  ELF_ST_VISIBILITY
#define ELF64_ST_VISIBILITY  ELF_ST_VISIBILITY


#define STN_UNDEF	0		/* Undefined symbol index */

#define STB_LOCAL	0		/* Symbol not visible outside obj */
#define STB_GLOBAL	1		/* Symbol visible outside obj */
#define STB_WEAK	2		/* Like globals, lower precedence */
#define STB_LOOS        10		/* OS-specific semantics */
#define STB_HIOS        12		/* OS-specific semantics */
#define STB_LOPROC	13		/* Application-specific semantics */
#define STB_HIPROC	15		/* Application-specific semantics */

#define STT_NOTYPE	0		/* Symbol type is unspecified */
#define STT_OBJECT	1		/* Symbol is a data object */
#define STT_FUNC	2		/* Symbol is a code object */
#define STT_SECTION	3		/* Symbol associated with a section */
#define STT_FILE	4		/* Symbol gives a file name */
#define STT_COMMON	5		/* An uninitialised common block */
#define STT_LOOS        10		/* OS-specific semantics */
#define STT_HIOS        12		/* OS-specific semantics */
#define STT_LOPROC	13		/* Application-specific semantics */
#define STT_HIPROC	15		/* Application-specific semantics */

/* Special section indices, which may show up in st_shndx fields, among
   other places.  */

#define SHN_UNDEF	0		/* Undefined section reference */
#define SHN_LORESERVE	0xFF00		/* Begin range of reserved indices */
#define SHN_LOPROC	0xFF00		/* Begin range of appl-specific */
#define SHN_HIPROC	0xFF1F		/* End range of appl-specific */
#define SHN_LOOS        0xFF20		/* OS specific semantics, lo */
#define SHN_HIOS        0xFF3F		/* OS specific semantics, hi */
#define SHN_ABS	        0xFFF1		/* Associated symbol is absolute */
#define SHN_COMMON      0xFFF2		/* Associated symbol is in common */
#define SHN_XINDEX      0xFFFF		/* Section index it held elsewhere */
#define SHN_HIRESERVE   0xFFFF		/* End range of reserved indices */

/* The following constants control how a symbol may be accessed once it has
   become part of an executable or shared library.  */
					   
#define STV_DEFAULT	0		/* Visibility is specified by binding type */
#define STV_INTERNAL	1		/* OS specific version of STV_HIDDEN */
#define STV_HIDDEN	2		/* Can only be seen inside currect component */
#define STV_PROTECTED	3		/* Treat as STB_LOCAL inside current component */

/* Relocation info handling macros.  */

#define ELF32_R_SYM(i)		((i) >> 8)
#define ELF32_R_TYPE(i)		((i) & 0xff)
#define ELF32_R_INFO(s,t)	(((s) << 8) + ((t) & 0xff))

#define ELF64_R_SYM(i)		((i) >> 32)
#define ELF64_R_TYPE(i)		((i) & 0xffffffff)
#define ELF64_R_INFO(s,t)	(((bfd_vma) (s) << 32) + (bfd_vma) (t))

/* Dynamic section tags.  */

#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_BIND_NOW     24
#define DT_INIT_ARRAY   25
#define DT_FINI_ARRAY   26
#define DT_INIT_ARRAYSZ 27
#define DT_FINI_ARRAYSZ 28
#define DT_RUNPATH      29
#define DT_FLAGS        30

#define DT_ENCODING     32
#define DT_PREINIT_ARRAY   32
#define DT_PREINIT_ARRAYSZ 33

/* Note, the Oct 4, 1999 draft of the ELF ABI changed the values
   for DT_LOOS and DT_HIOS.  Some implementations however, use
   values outside of the new range (see below).  */
#define OLD_DT_LOOS	0x60000000
#define DT_LOOS         0x6000000d
#define DT_HIOS         0x6fff0000
#define OLD_DT_HIOS     0x6fffffff

#define DT_LOPROC       0x70000000
#define DT_HIPROC       0x7fffffff

/* The next four dynamic tags are used on Solaris.  We support them
   everywhere.  Note these values lie outside of the (new) range for
   OS specific values.  This is a deliberate special case and we
   maintain it for backwards compatability.  */
#define DT_VALRNGLO	0x6ffffd00
#define DT_CHECKSUM	0x6ffffdf8
#define DT_PLTPADSZ	0x6ffffdf9
#define DT_MOVEENT	0x6ffffdfa
#define DT_MOVESZ	0x6ffffdfb
#define DT_FEATURE	0x6ffffdfc
#define DT_POSFLAG_1	0x6ffffdfd
#define DT_SYMINSZ	0x6ffffdfe
#define DT_SYMINENT	0x6ffffdff
#define DT_VALRNGHI	0x6ffffdff

#define DT_ADDRRNGLO	0x6ffffe00
#define DT_CONFIG	0x6ffffefa
#define DT_DEPAUDIT	0x6ffffefb
#define DT_AUDIT	0x6ffffefc
#define DT_PLTPAD	0x6ffffefd
#define DT_MOVETAB	0x6ffffefe
#define DT_SYMINFO	0x6ffffeff
#define DT_ADDRRNGHI	0x6ffffeff

#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

/* This tag is a GNU extension to the Solaris version scheme.  */
#define DT_VERSYM	0x6ffffff0

#define DT_LOPROC	0x70000000
#define DT_HIPROC	0x7fffffff

/* These section tags are used on Solaris.  We support them
   everywhere, and hope they do not conflict.  */

#define DT_AUXILIARY	0x7ffffffd
#define DT_USED		0x7ffffffe
#define DT_FILTER	0x7fffffff


/* Values used in DT_FEATURE .dynamic entry.  */
#define DTF_1_PARINIT	0x00000001
/* From

   http://docs.sun.com:80/ab2/coll.45.13/LLM/@Ab2PageView/21165?Ab2Lang=C&Ab2Enc=iso-8859-1

   DTF_1_CONFEXP is the same as DTF_1_PARINIT. It is a typo. The value
   defined here is the same as the one in <sys/link.h> on Solaris 8.  */
#define DTF_1_CONFEXP	0x00000002

/* Flag values used in the DT_POSFLAG_1 .dynamic entry.  */
#define DF_P1_LAZYLOAD	0x00000001
#define DF_P1_GROUPPERM	0x00000002

/* Flag value in in the DT_FLAGS_1 .dynamic entry.  */
#define DF_1_NOW	0x00000001
#define DF_1_GLOBAL	0x00000002
#define DF_1_GROUP	0x00000004
#define DF_1_NODELETE	0x00000008
#define DF_1_LOADFLTR	0x00000010
#define DF_1_INITFIRST	0x00000020
#define DF_1_NOOPEN	0x00000040
#define DF_1_ORIGIN	0x00000080
#define DF_1_DIRECT	0x00000100
#define DF_1_TRANS	0x00000200
#define DF_1_INTERPOSE	0x00000400
#define DF_1_NODEFLIB	0x00000800
#define DF_1_NODUMP	0x00001000
#define DF_1_CONLFAT	0x00002000

/* Flag values for the DT_FLAGS entry.  */
#define DF_ORIGIN	(1 << 0)
#define DF_SYMBOLIC	(1 << 1)
#define DF_TEXTREL	(1 << 2)
#define DF_BIND_NOW	(1 << 3)

/* These constants are used for the version number of a Elf32_Verdef
   structure.  */

#define VER_DEF_NONE		0
#define VER_DEF_CURRENT		1

/* These constants appear in the vd_flags field of a Elf32_Verdef
   structure.  */

#define VER_FLG_BASE		0x1
#define VER_FLG_WEAK		0x2

/* These special constants can be found in an Elf32_Versym field.  */

#define VER_NDX_LOCAL		0
#define VER_NDX_GLOBAL		1

/* These constants are used for the version number of a Elf32_Verneed
   structure.  */

#define VER_NEED_NONE		0
#define VER_NEED_CURRENT	1

/* This flag appears in a Versym structure.  It means that the symbol
   is hidden, and is only visible with an explicit version number.
   This is a GNU extension.  */

#define VERSYM_HIDDEN		0x8000

/* This is the mask for the rest of the Versym information.  */

#define VERSYM_VERSION		0x7fff

/* This is a special token which appears as part of a symbol name.  It
   indictes that the rest of the name is actually the name of a
   version node, and is not part of the actual name.  This is a GNU
   extension.  For example, the symbol name `stat@ver2' is taken to
   mean the symbol `stat' in version `ver2'.  */

#define ELF_VER_CHR	'@'

/* Possible values for si_boundto.  */

#define SYMINFO_BT_SELF		0xffff	/* Symbol bound to self */
#define SYMINFO_BT_PARENT	0xfffe	/* Symbol bound to parent */
#define SYMINFO_BT_LOWRESERVE	0xff00	/* Beginning of reserved entries */

/* Possible bitmasks for si_flags.  */

#define SYMINFO_FLG_DIRECT	0x0001	/* Direct bound symbol */
#define SYMINFO_FLG_PASSTHRU	0x0002	/* Pass-thru symbol for translator */
#define SYMINFO_FLG_COPY	0x0004	/* Symbol is a copy-reloc */
#define SYMINFO_FLG_LAZYLOAD	0x0008	/* Symbol bound to object to be lazy loaded */

/* Syminfo version values.  */

#define SYMINFO_NONE		0
#define SYMINFO_CURRENT		1
#define SYMINFO_NUM		2

/* Section Group Flags.  */

#define GRP_COMDAT		0x1	/* A COMDAT group */

#endif /* _ELF_COMMON_H */