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/**************************************************************************/
/*  COFF.H                                                                */
/*     COFF data structures and related definitions used by the linker    */
/**************************************************************************/

/*------------------------------------------------------------------------*/
/*  COFF FILE HEADER                                                      */
/*------------------------------------------------------------------------*/
struct filehdr {
        unsigned short  f_magic;        /* magic number */
        unsigned short  f_nscns;        /* number of sections */
        long            f_timdat;       /* time & date stamp */
        long            f_symptr;       /* file pointer to symtab */
        long            f_nsyms;        /* number of symtab entries */
        unsigned short  f_opthdr;       /* sizeof(optional hdr) */
        unsigned short  f_flags;        /* flags */
        unsigned short  f_TargetID;     /* for C6x = 0x0099 */
        };

/*------------------------------------------------------------------------*/
/*  File header flags                                                     */
/*------------------------------------------------------------------------*/
#define  F_RELFLG   0x01       /* relocation info stripped from file       */
#define  F_EXEC     0x02       /* file is executable (no unresolved refs)  */
#define  F_LNNO     0x04       /* line nunbers stripped from file          */
#define  F_LSYMS    0x08       /* local symbols stripped from file         */
#define  F_GSP10    0x10       /* 34010 version                            */
#define  F_GSP20    0x20       /* 34020 version                            */
#define  F_SWABD    0x40       /* bytes swabbed (in names)                 */
#define  F_AR16WR   0x80       /* byte ordering of an AR16WR (PDP-11)      */
#define  F_LITTLE   0x100      /* byte ordering of an AR32WR (vax)         */
#define  F_BIG      0x200      /* byte ordering of an AR32W (3B, maxi)     */
#define  F_PATCH    0x400      /* contains "patch" list in optional header */
#define  F_NODF     0x400   

#define F_VERSION    (F_GSP10  | F_GSP20)   
#define F_BYTE_ORDER (F_LITTLE | F_BIG)
#define FILHDR  struct filehdr

/* #define FILHSZ  sizeof(FILHDR)  */
#define FILHSZ  22                /* above rounds to align on 4 bytes which causes problems */

#define COFF_C67_MAGIC 0x00c2

/*------------------------------------------------------------------------*/
/*  Macros to recognize magic numbers                                     */
/*------------------------------------------------------------------------*/
#define ISMAGIC(x)      (((unsigned short)(x))==(unsigned short)magic)
#define ISARCHIVE(x)    ((((unsigned short)(x))==(unsigned short)ARTYPE))
#define BADMAGIC(x)     (((unsigned short)(x) & 0x8080) && !ISMAGIC(x))


/*------------------------------------------------------------------------*/
/*  OPTIONAL FILE HEADER                                                  */
/*------------------------------------------------------------------------*/
typedef struct aouthdr {
        short   magic;          /* see magic.h                          */
        short   vstamp;         /* version stamp                        */
        long    tsize;          /* text size in bytes, padded to FW bdry*/
        long    dsize;          /* initialized data "  "                */
        long    bsize;          /* uninitialized data "   "             */
        long    entrypt;        /* entry pt.                            */
        long    text_start;     /* base of text used for this file      */
        long    data_start;     /* base of data used for this file      */
} AOUTHDR;

#define AOUTSZ  sizeof(AOUTHDR)

/*----------------------------------------------------------------------*/
/*      When a UNIX aout header is to be built in the optional header,  */
/*      the following magic numbers can appear in that header:          */ 
/*                                                                      */
/*              AOUT1MAGIC : default : readonly sharable text segment   */
/*              AOUT2MAGIC:          : writable text segment            */
/*              PAGEMAGIC  :         : configured for paging            */
/*----------------------------------------------------------------------*/
#define AOUT1MAGIC 0410
#define AOUT2MAGIC 0407
#define PAGEMAGIC  0413


/*------------------------------------------------------------------------*/
/*  COMMON ARCHIVE FILE STRUCTURES                                        */
/*                                                                        */
/*       ARCHIVE File Organization:                                       */
/*       _______________________________________________                  */
/*       |__________ARCHIVE_MAGIC_STRING_______________|                  */
/*       |__________ARCHIVE_FILE_MEMBER_1______________|                  */
/*       |                                             |                  */
/*       |       Archive File Header "ar_hdr"          |                  */
/*       |.............................................|                  */
/*       |       Member Contents                       |                  */
/*       |               1. External symbol directory  |                  */
/*       |               2. Text file                  |                  */
/*       |_____________________________________________|                  */
/*       |________ARCHIVE_FILE_MEMBER_2________________|                  */
/*       |               "ar_hdr"                      |                  */
/*       |.............................................|                  */
/*       |       Member Contents (.o or text file)     |                  */
/*       |_____________________________________________|                  */
/*       |       .               .               .     |                  */
/*       |       .               .               .     |                  */
/*       |       .               .               .     |                  */
/*       |_____________________________________________|                  */
/*       |________ARCHIVE_FILE_MEMBER_n________________|                  */
/*       |               "ar_hdr"                      |                  */