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Annotation of coherent/c/usr/include/n.out.h, revision 1.1

1.1     ! root        1: /* (-lgl
        !             2:  *     COHERENT Version 3.0
        !             3:  *     Copyright (c) 1982, 1990 by Mark Williams Company.
        !             4:  *     All rights reserved. May not be copied without permission.
        !             5:  -lgl) */
        !             6: /*
        !             7:  * This is the format of the 'l.out' file with 32-bit addressing
        !             8:  * (for assembler, linkage editor, and compiler).
        !             9:  * It also has the namelist structure for the nlist routine.
        !            10:  */
        !            11: #ifndef         L_OUT_H
        !            12: #define         L_OUT_H
        !            13: #include <sys/types.h>
        !            14: 
        !            15: #define        NCPLN   16              /* Chars in loader name */
        !            16: #define NLSEG  9               /* No. of segments */
        !            17: #define        NXSEG   6               /* No. of segments used by exec */
        !            18: #define        L_MAGIC 0407            /* Magic number */
        !            19: 
        !            20: /*
        !            21:  * This is the header.
        !            22:  * It sits at the front of the file,
        !            23:  * holding control information and
        !            24:  * the sizes of the other segments
        !            25:  * of the file.
        !            26:  * The l_u union can be used for different things, but
        !            27:  * keep the size of members to longs.  
        !            28:  */
        !            29: 
        !            30: struct ldheader {
        !            31:        short   l_magic;        /* Magic number */
        !            32:        short   l_flag;         /* Flags */
        !            33:        short   l_machine;      /* Type of target machine */
        !            34:        short   l_tbase;        /* Text starts here */
        !            35:        long    l_ssize[NLSEG]; /* Segment sizes */
        !            36:        union {
        !            37:                long lu_entry;  /* Entry point */
        !            38:                long lu_nhwrel; /* Num HIWORD/LONG rels, for M_LRG8086 */
        !            39:        } l_u;
        !            40: };
        !            41: 
        !            42: #define        l_entry         l_u.lu_entry
        !            43: #define        l_nhwrel        l_u.lu_nhwrel
        !            44: 
        !            45: /* Flags */
        !            46: #define LF_SHR 01              /* Bound shared */
        !            47: #define LF_SEP 02              /* Bound separated */
        !            48: #define LF_NRB 04              /* No reloc. bits */
        !            49: #define        LF_KER  010             /* Loadable driver */
        !            50: #define        LF_32   020             /* 32-bit format l.out */
        !            51: #define        LF_SLREF 040            /* References shared library */
        !            52: #define        LF_SLIB 0100            /* Is the shared library */
        !            53: #define LF_DEBUG 0200          /* Include debug segment flag to linker */
        !            54: #define LF_FAKE        0400            /* header is displaced to end of exe or prg */
        !            55: 
        !            56: /* Formats */
        !            57: #define        AFMT    "%08lx"         /* Address */
        !            58: 
        !            59: /* Machines */
        !            60: #ifndef        MTYPE_H
        !            61: #include <mtype.h>
        !            62: #endif
        !            63: 
        !            64: /* Segments */
        !            65: #define        L_SHRI  0               /* Shared Instruction space */
        !            66: #define        L_PRVI  1               /* Private Instruction space */
        !            67: #define        L_BSSI  2               /* Uninitialised Instruction */
        !            68: #define        L_SHRD  3               /* Shared Data space */
        !            69: #define        L_PRVD  4               /* Private Data space */
        !            70: #define        L_BSSD  5               /* Uninitalised Data */
        !            71: #define L_DEBUG 6              /* Debug tables */
        !            72: #define L_SYM  7               /* Symbols */
        !            73: #define L_REL  8               /* Relocation */
        !            74: 
        !            75: #define L_ABS  9               /* Absolute (symbol table) */
        !            76: #define L_REF  10              /* Reference (symbol table) */
        !            77: 
        !            78: /*
        !            79:  * Symbol.
        !            80:  * These live in the 'L_SYM' section
        !            81:  * of the file; the size of this section
        !            82:  * determines the number of symbols.
        !            83:  */
        !            84: struct ldsym {
        !            85:        char    ls_id[NCPLN];   /* Symbol name */
        !            86:        short   ls_type;        /* Global + Seg. */
        !            87:        long    ls_addr;        /* Value of symbol */
        !            88: };
        !            89: 
        !            90: /*
        !            91:  * The nlist structure for the nlist routine.
        !            92:  */
        !            93: struct nlist   {
        !            94:        char    n_name[NCPLN];  /* Symbol name */
        !            95:        short   n_type;         /* Type flag */
        !            96:        long    n_value;        /* Value */
        !            97: };
        !            98: 
        !            99: #define        L_GLOBAL        020
        !           100: 
        !           101: /*
        !           102:  * Relocation.
        !           103:  * Relocation is a byte stream.
        !           104:  * The first is an opcode.
        !           105:  * The next 4 bytes are the address
        !           106:  * of relocation.
        !           107:  * If L_SYM-based relocation, the next two
        !           108:  * bytes are symbol number.
        !           109:  */
        !           110: #define LR_SEG 017             /* Seg., L_SYM => Sym. based */
        !           111: #define LR_PCR 020             /* PC Rel. flag */
        !           112: 
        !           113: #define LR_OP          0340            /* Opcode */
        !           114: #define LR_BYTE                (0<<5)          /* Rel. a byte */
        !           115: #define LR_WORD                (1<<5)          /* Rel. a word */
        !           116: #define        LR_LONG         (2<<5)          /* Rel. a long */
        !           117: #define LR_HIWORD      (3<<5)          /* Rel. via hiword of long */
        !           118: #endif

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