text: /*
   * CDDL HEADER START
   *
   * The contents of this file are subject to the terms of the
   * Common Development and Distribution License, Version 1.0 only
   * (the "License").  You may not use this file except in compliance
   * with the License.
   *
   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   * or http://www.opensolaris.org/os/licensing.
   * See the License for the specific language governing permissions
   * and limitations under the License.
   *
   * When distributing Covered Code, include this CDDL HEADER in each
   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
   * If applicable, add the following below this CDDL HEADER, with the
   * fields enclosed by brackets "[]" replaced with your own identifying
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*	Copyright (c) 1988 AT&T	*/
  /*	  All Rights Reserved  	*/
  
  
  #ifndef	_SYMS_H
  #define	_SYMS_H
  
  #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 2.8	*/
  
  /*		Storage Classes are defined in storclass.h  */
  #include <storclass.h>
  
  #ifdef	__cplusplus
  extern "C" {
  #endif
  
  /*		Number of characters in a symbol name */
  #define	SYMNMLEN	8
  /*		Number of characters in a file name */
  #define	FILNMLEN	14
  /*		Number of array dimensions in auxiliary entry */
  #define	DIMNUM		4
  
  struct syment
  {
  	union
  	{
  		char		_n_name[SYMNMLEN];	/* old COFF version */
  		struct
  		{
  			long	_n_zeroes;	/* new == 0 */
  			long	_n_offset;	/* offset into string table */
  		} _n_n;
  		char		*_n_nptr[2];	/* allows for overlaying */
  	} _n;
  	unsigned long		n_value;	/* value of symbol */
  	short			n_scnum;	/* section number */
  	unsigned short		n_type;		/* type and derived type */
  	char			n_sclass;	/* storage class */
  	char			n_numaux;	/* number of aux. entries */
  };
  
  #define	n_name		_n._n_name
  #define	n_nptr		_n._n_nptr[1]
  #define	n_zeroes	_n._n_n._n_zeroes
  #define	n_offset	_n._n_n._n_offset
  
  /*
   * Relocatable symbols have a section number of the
   * section in which they are defined.  Otherwise, section
   * numbers have the following meanings:
   */
  	/* undefined symbol */
  #define	N_UNDEF	0
  	/* value of symbol is absolute */
  #define	N_ABS	-1
  	/* special debugging symbol -- value of symbol is meaningless */
  #define	N_DEBUG	-2
  	/* indicates symbol needs transfer vector (preload) */
  #define	N_TV	(unsigned short)-3
  
  	/* indicates symbol needs transfer vector (postload) */
  
  #define	P_TV	(unsigned short)-4
  
  /*
   * The fundamental type of a symbol packed into the low
   * 4 bits of the word.
   */
  
  #define	_EF	".ef"
  
  #define	T_NULL		0
  #define	T_ARG		1	/* function argument (only used by compiler) */
  #define	T_CHAR		2	/* character */
  #define	T_SHORT		3	/* short integer */
  #define	T_INT		4	/* integer */
  #define	T_LONG		5	/* long integer */
  #define	T_FLOAT		6	/* floating point */
  #define	T_DOUBLE	7	/* double word */
  #define	T_STRUCT	8	/* structure	*/
  #define	T_UNION		9	/* union	*/
  #define	T_ENUM		10	/* enumeration	*/
  #define	T_MOE		11	/* member of enumeration */
  #define	T_UCHAR		12	/* unsigned character */
  #define	T_USHORT	13	/* unsigned short */
  #define	T_UINT		14	/* unsigned integer */
  #define	T_ULONG		15	/* unsigned long */
  
  /*
   * derived types are:
   */
  
  #define	DT_NON		0	/* no derived type */
  #define	DT_PTR		1	/* pointer */
  #define	DT_FCN		2	/* function */
  #define	DT_ARY		3	/* array */
  
  /*
   *   type packing constants
   */
  
  #define	N_BTMASK	017
  #define	N_TMASK		060
  #define	N_TMASK1	0300
  #define	N_TMASK2	0360
  #define	N_BTSHFT	4
  #define	N_TSHIFT	2
  
  /*
   *   MACROS
   */
  
  	/*   Basic Type of  x   */
  
  #define	BTYPE(x)  ((x) & N_BTMASK)
  
  	/*   Is  x  a  pointer ?   */
  
  #define	ISPTR(x)  (((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
  
  	/*   Is  x  a  function ?  */
  
  #define	ISFCN(x)  (((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
  
  	/*   Is  x  an  array ?   */
  
  #define	ISARY(x)  (((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
  
  	/* Is x a structure, union, or enumeration TAG? */
  
  #define	ISTAG(x)  ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
  
  #define	INCREF(x) ((((x)&~N_BTMASK)<<N_TSHIFT)|(DT_PTR<<N_BTSHFT)|(x&N_BTMASK))
  
  #define	DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))
  
  /*
   *	AUXILIARY ENTRY FORMAT
   */
  
  union auxent
  {
  	struct
  	{
  		long		x_tagndx;	/* str, un, or enum tag indx */
  		union
  		{
  			struct
  			{
  				unsigned short	x_lnno;	/* declaration line */
  							/* number */
  				unsigned short	x_size;	/* str, union, array */
  							/* size */
  			} x_lnsz;
  			long	x_fsize;	/* size of function */
  		} x_misc;
  		union
  		{
  			struct			/* if ISFCN, tag, or .bb */
  			{
  				long	x_lnnoptr;	/* ptr to fcn line # */
  				long	x_endndx;	/* entry ndx past */
  							/* block end */
  			} 	x_fcn;
  			struct			/* if ISARY, up to 4 dimen. */
  			{
  				unsigned short	x_dimen[DIMNUM];
  			} 	x_ary;
  		}		x_fcnary;
  		unsigned short  x_tvndx;		/* tv index */
  	} 	x_sym;
  	struct
  	{
  		char	x_fname[FILNMLEN];
  	} 	x_file;
  	struct
  	{
  		long		x_scnlen;	/* section length */
  		unsigned short	x_nreloc;	/* number of reloc entries */
  		unsigned short	x_nlinno;	/* number of line numbers */
  	}	x_scn;
  
  	struct
  	{
  		long		x_tvfill;	/* tv fill value */
  		unsigned short	x_tvlen;	/* length of .tv */
  		unsigned short	x_tvran[2];	/* tv range */
  	}	x_tv;	/* info about .tv section (in auxent of symbol .tv)) */
  };
  
  #define	SYMENT	struct syment
  #define	SYMESZ	18	/* sizeof(SYMENT) */
  
  #define	AUXENT	union auxent
  #define	AUXESZ	18	/* sizeof(AUXENT) */
  
  /*	Defines for "special" symbols   */
  
  #define	_ETEXT	"etext"
  #define	_EDATA	"edata"
  #define	_END	"end"
  #define	_START	"_start"
  
  #ifdef	__cplusplus
  }
  #endif
  
  #endif	/* _SYMS_H */
  