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Annotation of 43BSDReno/usr.sbin/dlmpcc/scnhdr.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * This code is derived from software contributed to Berkeley by
        !             6:  * Computer Consoles Inc.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms are permitted provided
        !             9:  * that: (1) source distributions retain this entire copyright notice and
        !            10:  * comment, and (2) distributions including binaries display the following
        !            11:  * acknowledgement:  ``This product includes software developed by the
        !            12:  * University of California, Berkeley and its contributors'' in the
        !            13:  * documentation or other materials provided with the distribution and in
        !            14:  * all advertising materials mentioning features or use of this software.
        !            15:  * Neither the name of the University nor the names of its contributors may
        !            16:  * be used to endorse or promote products derived from this software without
        !            17:  * specific prior written permission.
        !            18:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            19:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            20:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            21:  *
        !            22:  *     @(#)scnhdr.h    5.3 (Berkeley) 6/1/90
        !            23:  */
        !            24: 
        !            25: struct scnhdr {
        !            26:        char            s_name[8];      /* section name */
        !            27:        long            s_paddr;        /* physical address */
        !            28:        long            s_vaddr;        /* virtual address */
        !            29:        long            s_size;         /* section size */
        !            30:        long            s_scnptr;       /* file ptr to raw data for section */
        !            31:        long            s_relptr;       /* file ptr to relocation */
        !            32:        long            s_lnnoptr;      /* file ptr to line numbers */
        !            33:        unsigned short  s_nreloc;       /* number of relocation entries */
        !            34:        unsigned short  s_nlnno;        /* number of line number entries */
        !            35:        long            s_flags;        /* flags */
        !            36:        };
        !            37: 
        !            38: #define        SCNHDR  struct scnhdr
        !            39: #define        SCNHSZ  sizeof(SCNHDR)
        !            40: 
        !            41: 
        !            42: 
        !            43: 
        !            44: /*
        !            45:  * Define constants for names of "special" sections
        !            46:  */
        !            47: 
        !            48: #define _TEXT ".text"
        !            49: #define _DATA ".data"
        !            50: #define _BSS  ".bss"
        !            51: #define _TV  ".tv"
        !            52: 
        !            53: 
        !            54: 
        !            55: 
        !            56: /*
        !            57:  * The low 4 bits of s_flags is used as a section "type"
        !            58:  */
        !            59: 
        !            60: #define STYP_REG       0x00            /* "regular" section:
        !            61:                                                allocated, relocated, loaded */
        !            62: #define STYP_DSECT     0x01            /* "dummy" section:
        !            63:                                                not allocated, relocated,
        !            64:                                                not loaded */
        !            65: #define STYP_NOLOAD    0x02            /* "noload" section:
        !            66:                                                allocated, relocated,
        !            67:                                                 not loaded */
        !            68: #define STYP_GROUP     0x04            /* "grouped" section:
        !            69:                                                formed of input sections */
        !            70: #define STYP_PAD       0x08            /* "padding" section:
        !            71:                                                not allocated, not relocated,
        !            72:                                                 loaded */
        !            73: #define STYP_COPY      0x10            /* "copy" section:
        !            74:                                                for decision function used
        !            75:                                                by field update;  not
        !            76:                                                allocated, not relocated,
        !            77:                                                loaded;  reloc & lineno
        !            78:                                                entries processed normally */
        !            79: #define        STYP_TEXT       0x20            /* section contains text only */
        !            80: #define STYP_DATA      0x40            /* section contains data only */
        !            81: #define STYP_BSS       0x80            /* section contains bss only */
        !            82: 
        !            83: /*
        !            84:  *  In a minimal file or an update file, a new function
        !            85:  *  (as compared with a replaced function) is indicated by S_NEWFCN
        !            86:  */
        !            87: 
        !            88: #define S_NEWFCN  0x10
        !            89: 
        !            90: /*
        !            91:  * In 3b Update Files (output of ogen), sections which appear in SHARED
        !            92:  * segments of the Pfile will have the S_SHRSEG flag set by ogen, to inform
        !            93:  * dufr that updating 1 copy of the proc. will update all process invocations.
        !            94:  */
        !            95: 
        !            96: #define S_SHRSEG       0x20

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