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Annotation of Gnu-Mach/ddb/nlist.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1991 Carnegie Mellon University
        !             4:  * All Rights Reserved.
        !             5:  * 
        !             6:  * Permission to use, copy, modify and distribute this software and its
        !             7:  * documentation is hereby granted, provided that both the copyright
        !             8:  * notice and this permission notice appear in all copies of the
        !             9:  * software, derivative works or modified versions, and any portions
        !            10:  * thereof, and that both notices appear in supporting documentation.
        !            11:  *
        !            12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            15:  *
        !            16:  * Carnegie Mellon requests users of this software to return to
        !            17:  *
        !            18:  *  Software Distribution Coordinator  or  [email protected]
        !            19:  *  School of Computer Science
        !            20:  *  Carnegie Mellon University
        !            21:  *  Pittsburgh PA 15213-3890
        !            22:  *
        !            23:  * any improvements or extensions that they make and grant Carnegie Mellon 
        !            24:  * the rights to redistribute these changes.
        !            25:  */
        !            26: /*
        !            27:  *  nlist.h - symbol table entry  structure for an a.out file
        !            28:  *  derived from FSF's a.out.gnu.h
        !            29:  *
        !            30:  */
        !            31: 
        !            32: #ifndef _DDB_NLIST_H_
        !            33: #define _DDB_NLIST_H_
        !            34: 
        !            35: struct nlist {
        !            36:        union n_un {
        !            37:            char        *n_name;        /* symbol name */
        !            38:            long        n_strx;         /* index into file string table */
        !            39:        } n_un;
        !            40:        unsigned char n_type;   /* type flag, i.e. N_TEXT etc; see below */
        !            41:        unsigned char n_other;  /* machdep uses */
        !            42:        short   n_desc;         /* see <stab.h> */
        !            43: #if alpha
        !            44:        int     n_pad;          /* alignment, used to carry framesize info */
        !            45: #endif
        !            46:        vm_offset_t n_value;    /* value of this symbol (or sdb offset) */
        !            47: };
        !            48: 
        !            49: /*
        !            50:  * Simple values for n_type.
        !            51:  */
        !            52: #define        N_UNDF  0               /* undefined */
        !            53: #define        N_ABS   2               /* absolute */
        !            54: #define        N_TEXT  4               /* text */
        !            55: #define        N_DATA  6               /* data */
        !            56: #define        N_BSS   8               /* bss */
        !            57: #define        N_FN    0x1f            /* file name symbol */
        !            58: #define        N_EXT   1               /* external bit, or'ed in */
        !            59: #define        N_TYPE  0x1e            /* mask for all the type bits */
        !            60: #define        N_STAB  0xe0            /* if any of these bits set, a SDB entry */
        !            61: 
        !            62: 
        !            63: #endif /* _DDB_NLIST_H_ */

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