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/* (-lgl
 * 	COHERENT Version 3.2.2
 * 	Copyright (c) 1982, 1992 by Mark Williams Company.
 * 	All rights reserved. May not be copied without permission.
 -lgl) */
/*
 * n.out.h
 * This defines the format of the 'l.out' file with 32-bit addressing
 * (for assembler, linkage editor, and compiler).
 * It also has the namelist structure for the nlist routine.
 */
#ifndef	 L_OUT_H
#define	 L_OUT_H

#include <sys/types.h>

#define	NCPLN	16		/* Chars in loader name		*/
#define NLSEG	9		/* No. of segments		*/
#define	NXSEG	6		/* No. of segments used by exec	*/
#define	L_MAGIC	0407		/* Magic number			*/

/*
 * Header.
 * This lives at the front of the file and gives control information
 * and the sizes of the other segments of the file.
 * The l_u union can be used for different things,
 * but keep the size of members to longs.  
 */
struct	ldheader {
	short	l_magic;		/* Magic number		*/
	short	l_flag;			/* Flags		*/
	short	l_machine;		/* Type of target machine */
	short	l_tbase;		/* Text starts here	*/
	fsize_t	l_ssize[NLSEG];		/* Segment sizes	*/
	union {
		long lu_entry;	/* Entry point			*/
		long lu_nhwrel;	/* No. HIWORD/LONG rels, for M_LRG8086 */
	} l_u;
};

#define	l_entry		l_u.lu_entry
#define	l_nhwrel	l_u.lu_nhwrel

/* Flags. */
#define LF_SHR	01		/* Bound shared			*/
#define LF_SEP	02		/* Bound separated		*/
#define LF_NRB	04		/* No reloc. bits		*/
#define	LF_KER	010		/* Loadable driver		*/
#define	LF_32	020		/* 32-bit format l.out		*/
#define	LF_SLREF 040		/* References shared library	*/
#define	LF_SLIB	0100		/* Is the shared library	*/
#define LF_DEBUG 0200		/* Include debug segment flag to linker */
#define LF_FAKE	0400		/* Header is displaced to end of exe or prg */

#define	LF_286	0		/* dummy mode [386/exec.c]	*/
#define	LF_386	0x80000000	/* dummy mode [386/exec.c]	*/

/* Formats. */
#define	AFMT	"%08lx"		/* Address			*/

/* Machines. */
#ifndef	MTYPE_H
#include <mtype.h>
#endif

/* Segments */
#define	L_SHRI	0		/* Shared Instruction space	*/
#define	L_PRVI	1		/* Private Instruction space	*/
#define	L_BSSI	2		/* Uninitialised Instruction	*/
#define	L_SHRD	3		/* Shared Data space		*/
#define	L_PRVD	4		/* Private Data space		*/
#define	L_BSSD	5		/* Uninitalised Data		*/
#define L_DEBUG 6		/* Debug tables			*/
#define L_SYM	7		/* Symbols			*/
#define L_REL	8		/* Relocation			*/
#define L_ABS	9		/* Absolute (symbol table)	*/
#define L_REF	10		/* Reference (symbol table)	*/

/*
 * Symbol.
 * These live in the 'L_SYM' section of the file;
 * the size of this section determines the number of symbols.
 */
struct	ldsym {
	char	ls_id[NCPLN];		/* Symbol name		*/
	short	ls_type;		/* Global + Seg.	*/
#pragma	align 2
	long	ls_addr;		/* Value of symbol	*/
};
#pragma	align

/*
 * The nlist structure for the nlist routine.
 */
struct nlist	{
	char	n_name[NCPLN];		/* Symbol name		*/
	short	n_type;			/* Type flag		*/
	long	n_value;		/* Value		*/
};

#define	L_GLOBAL	020

/*
 * Relocation.
 * Relocation is a byte stream.
 * The first is an opcode.
 * The next four bytes are the address of relocation.
 * If L_SYM-based relocation,
 * the next two bytes are symbol number.
 */
#define LR_SEG	017		/* Seg., L_SYM => Sym. based	*/
#define LR_PCR	020		/* PC Rel. flag			*/

#define LR_OP		0340		/* Opcode		*/
#define LR_BYTE		(0<<5)		/* Rel. a byte		*/
#define LR_WORD		(1<<5)		/* Rel. a word		*/
#define	LR_LONG		(2<<5)		/* Rel. a long		*/
#define LR_HIWORD	(3<<5)		/* Rel. via hiword of long */
#endif

/* end of n.out.h */

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