[deliverable/binutils-gdb.git] / gas / config / obj-bout.h

/* b.out object file format
   Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 1996
   Free Software Foundation, Inc.

   This file is part of GAS, the GNU Assembler.

   GAS is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2,
   or (at your option) any later version.

   GAS is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
   the GNU General Public License for more details.

   You should have received a copy of the GNU General Public
   License along with GAS; see the file COPYING.  If not, write
   to the Free Software Foundation, 59 Temple Place - Suite 330, Cambridge, MA
   02139, USA. */

/*
 * This file is a modified version of 'a.out.h'.  It is to be used in all GNU
 * tools modified to support the i80960 b.out format (or tools that operate on
 * object files created by such tools).
 *
 * All i80960 development is done in a CROSS-DEVELOPMENT environment.  I.e.,
 * object code is generated on, and executed under the direction of a symbolic
 * debugger running on, a host system.  We do not want to be subject to the
 * vagaries of which host it is or whether it supports COFF or a.out format, or
 * anything else.  We DO want to:
 *
 *	o always generate the same format object files, regardless of host.
 *
 *	o have an 'a.out' header that we can modify for our own purposes
 *	  (the 80960 is typically an embedded processor and may require
 *	  enhanced linker support that the normal a.out.h header can't
 *	  accommodate).
 *
 * As for byte-ordering, the following rules apply:
 *
 *	o Text and data that is actually downloaded to the target is always
 *	  in i80960 (little-endian) order.
 *
 *	o All other numbers (in the header, symbols, relocation directives)
 *	  are in host byte-order:  object files CANNOT be lifted from a
 *	  little-end host and used on a big-endian (or vice versa) without
 *	  modification.
 * ==> THIS IS NO LONGER TRUE USING BFD.  WE CAN GENERATE ANY BYTE ORDER
 *     FOR THE HEADER, AND READ ANY BYTE ORDER.  PREFERENCE WOULD BE TO
 *     USE LITTLE-ENDIAN BYTE ORDER THROUGHOUT, REGARDLESS OF HOST.  <==
 *
 *	o The downloader ('comm960') takes care to generate a pseudo-header
 *	  with correct (i80960) byte-ordering before shipping text and data
 *	  off to the NINDY monitor in the target systems.  Symbols and
 *	  relocation info are never sent to the target.
 */


#define OBJ_BOUT 1

#define OUTPUT_FLAVOR bfd_target_aout_flavour

#include "targ-cpu.h"

#define OBJ_DEFAULT_OUTPUT_FILE_NAME	"b.out"

extern const short seg_N_TYPE[];
extern const segT N_TYPE_seg[];

#define BMAGIC	0415
/* We don't accept the following (see N_BADMAG macro).
 * They're just here so GNU code will compile.
 */
#define	OMAGIC	0407		/* old impure format */
#define	NMAGIC	0410		/* read-only text */
#define	ZMAGIC	0413		/* demand load format */

#ifndef DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE
#define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE	(BMAGIC)
#endif /* DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE */

/* FILE HEADER
 *	All 'lengths' are given as a number of bytes.
 *	All 'alignments' are for relinkable files only;  an alignment of
 *		'n' indicates the corresponding segment must begin at an
 *		address that is a multiple of (2**n).
 */
struct exec
  {
    /* Standard stuff */
    unsigned long a_magic;	/* Identifies this as a b.out file	*/
    unsigned long a_text;	/* Length of text			*/
    unsigned long a_data;	/* Length of data			*/
    unsigned long a_bss;	/* Length of runtime uninitialized data area */
    unsigned long a_syms;	/* Length of symbol table		*/
    unsigned long a_entry;	/* Runtime start address		*/
    unsigned long a_trsize;	/* Length of text relocation info	*/
    unsigned long a_drsize;	/* Length of data relocation info	*/

    /* Added for i960 */
    unsigned long a_tload;	/* Text runtime load address		*/
    unsigned long a_dload;	/* Data runtime load address		*/
    unsigned char a_talign;	/* Alignment of text segment		*/
    unsigned char a_dalign;	/* Alignment of data segment		*/
    unsigned char a_balign;	/* Alignment of bss segment		*/
    unsigned char a_relaxable;	/* Contains enough info to relax     */
  };

#define N_BADMAG(x)	(((x).a_magic)!=BMAGIC)
#define N_TXTOFF(x)	( sizeof(struct exec) )
#define N_DATOFF(x)	( N_TXTOFF(x) + (x).a_text )
#define N_TROFF(x)	( N_DATOFF(x) + (x).a_data )
#define N_DROFF(x)	( N_TROFF(x) + (x).a_trsize )
#define N_SYMOFF(x)	( N_DROFF(x) + (x).a_drsize )
#define N_STROFF(x)	( N_SYMOFF(x) + (x).a_syms )

/* A single entry in the symbol table
 */
struct nlist
  {
    union
      {
	char *n_name;
	struct nlist *n_next;
	long n_strx;		/* Index into string table	*/
      }
    n_un;
    unsigned char n_type;	/* See below				*/
    char n_other;		/* Used in i80960 support -- see below	*/
    short n_desc;
    unsigned long n_value;
  };

typedef struct nlist obj_symbol_type;

/* Legal values of n_type
 */
#define N_UNDF	0		/* Undefined symbol	*/
#define N_ABS	2		/* Absolute symbol	*/
#define N_TEXT	4		/* Text symbol		*/
#define N_DATA	6		/* Data symbol		*/
#define N_BSS	8		/* BSS symbol		*/
#define N_FN	31		/* Filename symbol	*/

#define N_EXT	1		/* External symbol (OR'd in with one of above)	*/
#define N_TYPE	036		/* Mask for all the type bits			*/
#define N_STAB	0340		/* Mask for all bits used for SDB entries 	*/

#ifndef CUSTOM_RELOC_FORMAT
struct relocation_info
  {
    int r_address;		/* File address of item to be relocated	*/
    unsigned
      r_index:24,		/* Index of symbol on which relocation is based*/
      r_pcrel:1,		/* 1 => relocate PC-relative; else absolute
		 *	On i960, pc-relative implies 24-bit
		 *	address, absolute implies 32-bit.
		 */
      r_length:2,		/* Number of bytes to relocate:
		 *	0 => 1 byte
		 *	1 => 2 bytes
		 *	2 => 4 bytes -- only value used for i960
		 */
      r_extern:1, r_bsr:1,	/* Something for the GNU NS32K assembler */
      r_disp:1,			/* Something for the GNU NS32K assembler */
      r_callj:1,		/* 1 if relocation target is an i960 'callj' */
      nuthin:1;			/* Unused				*/
  };

#endif /* CUSTOM_RELOC_FORMAT */

/*
 *  Macros to extract information from a symbol table entry.
 *  This syntaxic indirection allows independence regarding a.out or coff.
 *  The argument (s) of all these macros is a pointer to a symbol table entry.
 */

/* Predicates */
/* True if the symbol is external */
#define S_IS_EXTERNAL(s)	((s)->sy_symbol.n_type & N_EXT)

/* True if symbol has been defined, ie is in N_{TEXT,DATA,BSS,ABS} or N_EXT */
#define S_IS_DEFINED(s)		((S_GET_TYPE(s) != N_UNDF) || (S_GET_DESC(s) != 0))

#define S_IS_COMMON(s) \
  (S_GET_TYPE (s) == N_UNDF && S_GET_VALUE (s) != 0)

#define S_IS_REGISTER(s)	((s)->sy_symbol.n_type == N_REGISTER)

/* True if a debug special symbol entry */
#define S_IS_DEBUG(s)		((s)->sy_symbol.n_type & N_STAB)
/* True if a symbol is local symbol name */
#define S_IS_LOCAL(s) 					\
  (S_GET_NAME (s) 					\
   && !S_IS_DEBUG (s) 					\
   && (strchr (S_GET_NAME (s), '\001') != NULL		\
       || strchr (S_GET_NAME (s), '\002') != NULL	\
       || (S_LOCAL_NAME(s) && !flag_keep_locals)))
/* True if a symbol is not defined in this file */
#define S_IS_EXTERN(s)		((s)->sy_symbol.n_type & N_EXT)
/* True if the symbol has been generated because of a .stabd directive */
#define S_IS_STABD(s)		(S_GET_NAME(s) == NULL)

/* Accessors */
/* The name of the symbol */
#define S_GET_NAME(s)		((s)->sy_symbol.n_un.n_name)
/* The pointer to the string table */
#define S_GET_OFFSET(s)		((s)->sy_symbol.n_un.n_strx)
/* The type of the symbol */
#define S_GET_TYPE(s)		((s)->sy_symbol.n_type & N_TYPE)
/* The numeric value of the segment */
#define S_GET_SEGMENT(s)	(N_TYPE_seg[S_GET_TYPE(s)])
/* The n_other expression value */
#define S_GET_OTHER(s)		((s)->sy_symbol.n_other)
/* The n_desc expression value */
#define S_GET_DESC(s)		((s)->sy_symbol.n_desc)

/* Modifiers */
/* Assume that a symbol cannot be simultaneously in more than on segment */
/* set segment */
#define S_SET_SEGMENT(s,seg)	((s)->sy_symbol.n_type &= ~N_TYPE,(s)->sy_symbol.n_type|=SEGMENT_TO_SYMBOL_TYPE(seg))
/* The symbol is external */
#define S_SET_EXTERNAL(s)	((s)->sy_symbol.n_type |= N_EXT)
/* The symbol is not external */
#define S_CLEAR_EXTERNAL(s)	((s)->sy_symbol.n_type &= ~N_EXT)
/* Set the name of the symbol */
#define S_SET_NAME(s,v)		((s)->sy_symbol.n_un.n_name = (v))
/* Set the offset in the string table */
#define S_SET_OFFSET(s,v)	((s)->sy_symbol.n_un.n_strx = (v))
/* Set the n_other expression value */
#define S_SET_OTHER(s,v)	((s)->sy_symbol.n_other = (v))
/* Set the n_desc expression value */
#define S_SET_DESC(s,v)		((s)->sy_symbol.n_desc = (v))
/* Set the n_type value */
#define S_SET_TYPE(s,v)		((s)->sy_symbol.n_type = (v))

/* File header macro and type definition */

#define H_GET_FILE_SIZE(h)	(sizeof(struct exec) + \
				 H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
				 H_GET_SYMBOL_TABLE_SIZE(h) + \
				 H_GET_TEXT_RELOCATION_SIZE(h) + \
				 H_GET_DATA_RELOCATION_SIZE(h) + \
				 (h)->string_table_size)

#define H_GET_HEADER_SIZE(h)		(sizeof(struct exec))
#define H_GET_TEXT_SIZE(h)		((h)->header.a_text)
#define H_GET_DATA_SIZE(h)		((h)->header.a_data)
#define H_GET_BSS_SIZE(h)		((h)->header.a_bss)
#define H_GET_TEXT_RELOCATION_SIZE(h)	((h)->header.a_trsize)
#define H_GET_DATA_RELOCATION_SIZE(h)	((h)->header.a_drsize)
#define H_GET_SYMBOL_TABLE_SIZE(h)	((h)->header.a_syms)
#define H_GET_MAGIC_NUMBER(h)		((h)->header.a_info)
#define H_GET_ENTRY_POINT(h)		((h)->header.a_entry)
#define H_GET_STRING_SIZE(h)		((h)->string_table_size)
#define H_GET_LINENO_SIZE(h)		(0)

#ifdef EXEC_MACHINE_TYPE
#define H_GET_MACHINE_TYPE(h)		((h)->header.a_machtype)
#endif /* EXEC_MACHINE_TYPE */
#ifdef EXEC_VERSION
#define H_GET_VERSION(h)		((h)->header.a_version)
#endif /* EXEC_VERSION */

#define H_SET_TEXT_SIZE(h,v)		((h)->header.a_text = (v))
#define H_SET_DATA_SIZE(h,v)		((h)->header.a_data = (v))
#define H_SET_BSS_SIZE(h,v)		((h)->header.a_bss = (v))

#define H_SET_RELOCATION_SIZE(h,t,d)	(H_SET_TEXT_RELOCATION_SIZE((h),(t)),\
					 H_SET_DATA_RELOCATION_SIZE((h),(d)))

#define H_SET_TEXT_RELOCATION_SIZE(h,v)	((h)->header.a_trsize = (v))
#define H_SET_DATA_RELOCATION_SIZE(h,v)	((h)->header.a_drsize = (v))
#define H_SET_SYMBOL_TABLE_SIZE(h,v)	((h)->header.a_syms = (v) * \
					 sizeof(struct nlist))

#define H_SET_MAGIC_NUMBER(h,v)		((h)->header.a_magic = (v))

#define H_SET_ENTRY_POINT(h,v)		((h)->header.a_entry = (v))
#define H_SET_STRING_SIZE(h,v)		((h)->string_table_size = (v))
#ifdef EXEC_MACHINE_TYPE
#define H_SET_MACHINE_TYPE(h,v)		((h)->header.a_machtype = (v))
#endif /* EXEC_MACHINE_TYPE */
#ifdef EXEC_VERSION
#define H_SET_VERSION(h,v)		((h)->header.a_version = (v))
#endif /* EXEC_VERSION */

typedef struct
  {
    struct exec header;		/* a.out header */
    long string_table_size;	/* names + '\0' + sizeof(int) */
  }

object_headers;

/* unused hooks. */
#define OBJ_EMIT_LINENO(a, b, c)	{;}
#define obj_pre_write_hook(a)		{;}

#if __STDC__
struct fix;
#endif
extern void tc_aout_fix_to_chars PARAMS ((char *where,
					  struct fix *fixP,
					  relax_addressT segment_address));
extern void tc_bout_fix_to_chars PARAMS ((char *where,
					  struct fix *fixP,
					  relax_addressT segment_address));

#define AOUT_STABS

/* end of obj-bout.h */
Commit	Line	Data
fecd2382	1	/* b.out object file format
011d16ac ILT	2	Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 1996
011d16ac ILT	3	Free Software Foundation, Inc.
355afbcd	4
a39116f1	5	This file is part of GAS, the GNU Assembler.
355afbcd	6
a39116f1 RP	7	GAS is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as
	9	published by the Free Software Foundation; either version 2,
	10	or (at your option) any later version.
355afbcd	11
a39116f1 RP	12	GAS is distributed in the hope that it will be useful, but
	13	WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
	15	the GNU General Public License for more details.
355afbcd	16
a39116f1 RP	17	You should have received a copy of the GNU General Public
a39116f1 RP	18	License along with GAS; see the file COPYING. If not, write
a2a5a4fa	19	to the Free Software Foundation, 59 Temple Place - Suite 330, Cambridge, MA
a39116f1	20	02139, USA. */
fecd2382	21
fecd2382 RP	22	/*
	23	* This file is a modified version of 'a.out.h'. It is to be used in all GNU
	24	* tools modified to support the i80960 b.out format (or tools that operate on
	25	* object files created by such tools).
	26	*
	27	* All i80960 development is done in a CROSS-DEVELOPMENT environment. I.e.,
	28	* object code is generated on, and executed under the direction of a symbolic
	29	* debugger running on, a host system. We do not want to be subject to the
	30	* vagaries of which host it is or whether it supports COFF or a.out format, or
	31	* anything else. We DO want to:
	32	*
	33	* o always generate the same format object files, regardless of host.
	34	*
	35	* o have an 'a.out' header that we can modify for our own purposes
	36	* (the 80960 is typically an embedded processor and may require
	37	* enhanced linker support that the normal a.out.h header can't
	38	* accommodate).
	39	*
	40	* As for byte-ordering, the following rules apply:
	41	*
	42	* o Text and data that is actually downloaded to the target is always
	43	* in i80960 (little-endian) order.
	44	*
	45	* o All other numbers (in the header, symbols, relocation directives)
	46	* are in host byte-order: object files CANNOT be lifted from a
	47	* little-end host and used on a big-endian (or vice versa) without
	48	* modification.
8ae35e59 ILT	49	* ==> THIS IS NO LONGER TRUE USING BFD. WE CAN GENERATE ANY BYTE ORDER
	50	* FOR THE HEADER, AND READ ANY BYTE ORDER. PREFERENCE WOULD BE TO
	51	* USE LITTLE-ENDIAN BYTE ORDER THROUGHOUT, REGARDLESS OF HOST. <==
fecd2382 RP	52	*
	53	* o The downloader ('comm960') takes care to generate a pseudo-header
	54	* with correct (i80960) byte-ordering before shipping text and data
	55	* off to the NINDY monitor in the target systems. Symbols and
	56	* relocation info are never sent to the target.
	57	*/
	58
	59
	60	#define OBJ_BOUT 1
	61
12aab635 KR	62	#define OUTPUT_FLAVOR bfd_target_aout_flavour
12aab635 KR	63
fecd2382 RP	64	#include "targ-cpu.h"
fecd2382 RP	65
fecd2382 RP	66	#define OBJ_DEFAULT_OUTPUT_FILE_NAME "b.out"
	67
	68	extern const short seg_N_TYPE[];
355afbcd	69	extern const segT N_TYPE_seg[];
fecd2382 RP	70
	71	#define BMAGIC 0415
	72	/* We don't accept the following (see N_BADMAG macro).
	73	* They're just here so GNU code will compile.
	74	*/
	75	#define OMAGIC 0407 /* old impure format */
	76	#define NMAGIC 0410 /* read-only text */
	77	#define ZMAGIC 0413 /* demand load format */
	78
	79	#ifndef DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE
	80	#define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE (BMAGIC)
	81	#endif /* DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE */
	82
	83	/* FILE HEADER
	84	* All 'lengths' are given as a number of bytes.
	85	* All 'alignments' are for relinkable files only; an alignment of
	86	* 'n' indicates the corresponding segment must begin at an
	87	* address that is a multiple of (2**n).
	88	*/
355afbcd KR	89	struct exec
	90	{
	91	/* Standard stuff */
	92	unsigned long a_magic; /* Identifies this as a b.out file */
	93	unsigned long a_text; /* Length of text */
	94	unsigned long a_data; /* Length of data */
	95	unsigned long a_bss; /* Length of runtime uninitialized data area */
	96	unsigned long a_syms; /* Length of symbol table */
	97	unsigned long a_entry; /* Runtime start address */
	98	unsigned long a_trsize; /* Length of text relocation info */
	99	unsigned long a_drsize; /* Length of data relocation info */
	100
	101	/* Added for i960 */
	102	unsigned long a_tload; /* Text runtime load address */
	103	unsigned long a_dload; /* Data runtime load address */
	104	unsigned char a_talign; /* Alignment of text segment */
	105	unsigned char a_dalign; /* Alignment of data segment */
	106	unsigned char a_balign; /* Alignment of bss segment */
	107	unsigned char a_relaxable; /* Contains enough info to relax */
	108	};
fecd2382 RP	109
	110	#define N_BADMAG(x) (((x).a_magic)!=BMAGIC)
	111	#define N_TXTOFF(x) ( sizeof(struct exec) )
	112	#define N_DATOFF(x) ( N_TXTOFF(x) + (x).a_text )
	113	#define N_TROFF(x) ( N_DATOFF(x) + (x).a_data )
	114	#define N_DROFF(x) ( N_TROFF(x) + (x).a_trsize )
	115	#define N_SYMOFF(x) ( N_DROFF(x) + (x).a_drsize )
	116	#define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms )
	117
	118	/* A single entry in the symbol table
	119	*/
355afbcd KR	120	struct nlist
	121	{
	122	union
	123	{
	124	char *n_name;
	125	struct nlist *n_next;
	126	long n_strx; /* Index into string table */
	127	}
	128	n_un;
	129	unsigned char n_type; /* See below */
	130	char n_other; /* Used in i80960 support -- see below */
	131	short n_desc;
	132	unsigned long n_value;
	133	};
fecd2382 RP	134
	135	typedef struct nlist obj_symbol_type;
	136
	137	/* Legal values of n_type
	138	*/
355afbcd KR	139	#define N_UNDF 0 /* Undefined symbol */
	140	#define N_ABS 2 /* Absolute symbol */
	141	#define N_TEXT 4 /* Text symbol */
	142	#define N_DATA 6 /* Data symbol */
	143	#define N_BSS 8 /* BSS symbol */
	144	#define N_FN 31 /* Filename symbol */
fecd2382	145
355afbcd KR	146	#define N_EXT 1 /* External symbol (OR'd in with one of above) */
	147	#define N_TYPE 036 /* Mask for all the type bits */
	148	#define N_STAB 0340 /* Mask for all bits used for SDB entries */
fecd2382 RP	149
fecd2382 RP	150	#ifndef CUSTOM_RELOC_FORMAT
355afbcd KR	151	struct relocation_info
	152	{
	153	int r_address; /* File address of item to be relocated */
	154	unsigned
	155	r_index:24, /* Index of symbol on which relocation is based*/
	156	r_pcrel:1, /* 1 => relocate PC-relative; else absolute
a39116f1 RP	157	* On i960, pc-relative implies 24-bit
	158	* address, absolute implies 32-bit.
	159	*/
355afbcd	160	r_length:2, /* Number of bytes to relocate:
a39116f1 RP	161	* 0 => 1 byte
	162	* 1 => 2 bytes
	163	* 2 => 4 bytes -- only value used for i960
	164	*/
355afbcd KR	165	r_extern:1, r_bsr:1, /* Something for the GNU NS32K assembler */
	166	r_disp:1, /* Something for the GNU NS32K assembler */
	167	r_callj:1, /* 1 if relocation target is an i960 'callj' */
	168	nuthin:1; /* Unused */
	169	};
	170
fecd2382 RP	171	#endif /* CUSTOM_RELOC_FORMAT */
fecd2382 RP	172
fecd2382 RP	173	/*
	174	* Macros to extract information from a symbol table entry.
	175	* This syntaxic indirection allows independence regarding a.out or coff.
	176	* The argument (s) of all these macros is a pointer to a symbol table entry.
	177	*/
	178
	179	/* Predicates */
	180	/* True if the symbol is external */
	181	#define S_IS_EXTERNAL(s) ((s)->sy_symbol.n_type & N_EXT)
	182
	183	/* True if symbol has been defined, ie is in N_{TEXT,DATA,BSS,ABS} or N_EXT */
	184	#define S_IS_DEFINED(s) ((S_GET_TYPE(s) != N_UNDF) \|\| (S_GET_DESC(s) != 0))
e24cf2b5 ILT	185
	186	#define S_IS_COMMON(s) \
	187	(S_GET_TYPE (s) == N_UNDF && S_GET_VALUE (s) != 0)
	188
fecd2382 RP	189	#define S_IS_REGISTER(s) ((s)->sy_symbol.n_type == N_REGISTER)
	190
	191	/* True if a debug special symbol entry */
	192	#define S_IS_DEBUG(s) ((s)->sy_symbol.n_type & N_STAB)
	193	/* True if a symbol is local symbol name */
9e396994 ILT	194	#define S_IS_LOCAL(s) \
	195	(S_GET_NAME (s) \
	196	&& !S_IS_DEBUG (s) \
	197	&& (strchr (S_GET_NAME (s), '\001') != NULL \
	198	\|\| strchr (S_GET_NAME (s), '\002') != NULL \
	199	\|\| (S_LOCAL_NAME(s) && !flag_keep_locals)))
fecd2382 RP	200	/* True if a symbol is not defined in this file */
	201	#define S_IS_EXTERN(s) ((s)->sy_symbol.n_type & N_EXT)
	202	/* True if the symbol has been generated because of a .stabd directive */
	203	#define S_IS_STABD(s) (S_GET_NAME(s) == NULL)
	204
	205	/* Accessors */
fecd2382 RP	206	/* The name of the symbol */
	207	#define S_GET_NAME(s) ((s)->sy_symbol.n_un.n_name)
	208	/* The pointer to the string table */
	209	#define S_GET_OFFSET(s) ((s)->sy_symbol.n_un.n_strx)
	210	/* The type of the symbol */
	211	#define S_GET_TYPE(s) ((s)->sy_symbol.n_type & N_TYPE)
	212	/* The numeric value of the segment */
	213	#define S_GET_SEGMENT(s) (N_TYPE_seg[S_GET_TYPE(s)])
	214	/* The n_other expression value */
	215	#define S_GET_OTHER(s) ((s)->sy_symbol.n_other)
	216	/* The n_desc expression value */
	217	#define S_GET_DESC(s) ((s)->sy_symbol.n_desc)
	218
	219	/* Modifiers */
fecd2382	220	/* Assume that a symbol cannot be simultaneously in more than on segment */
a39116f1	221	/* set segment */
fecd2382 RP	222	#define S_SET_SEGMENT(s,seg) ((s)->sy_symbol.n_type &= ~N_TYPE,(s)->sy_symbol.n_type\|=SEGMENT_TO_SYMBOL_TYPE(seg))
	223	/* The symbol is external */
	224	#define S_SET_EXTERNAL(s) ((s)->sy_symbol.n_type \|= N_EXT)
	225	/* The symbol is not external */
	226	#define S_CLEAR_EXTERNAL(s) ((s)->sy_symbol.n_type &= ~N_EXT)
	227	/* Set the name of the symbol */
	228	#define S_SET_NAME(s,v) ((s)->sy_symbol.n_un.n_name = (v))
	229	/* Set the offset in the string table */
	230	#define S_SET_OFFSET(s,v) ((s)->sy_symbol.n_un.n_strx = (v))
	231	/* Set the n_other expression value */
	232	#define S_SET_OTHER(s,v) ((s)->sy_symbol.n_other = (v))
	233	/* Set the n_desc expression value */
	234	#define S_SET_DESC(s,v) ((s)->sy_symbol.n_desc = (v))
4f0bccc7 ILT	235	/* Set the n_type value */
4f0bccc7 ILT	236	#define S_SET_TYPE(s,v) ((s)->sy_symbol.n_type = (v))
fecd2382 RP	237
	238	/* File header macro and type definition */
	239
	240	#define H_GET_FILE_SIZE(h) (sizeof(struct exec) + \
	241	H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
	242	H_GET_SYMBOL_TABLE_SIZE(h) + \
	243	H_GET_TEXT_RELOCATION_SIZE(h) + \
	244	H_GET_DATA_RELOCATION_SIZE(h) + \
	245	(h)->string_table_size)
	246
a79c6033	247	#define H_GET_HEADER_SIZE(h) (sizeof(struct exec))
fecd2382 RP	248	#define H_GET_TEXT_SIZE(h) ((h)->header.a_text)
	249	#define H_GET_DATA_SIZE(h) ((h)->header.a_data)
	250	#define H_GET_BSS_SIZE(h) ((h)->header.a_bss)
	251	#define H_GET_TEXT_RELOCATION_SIZE(h) ((h)->header.a_trsize)
	252	#define H_GET_DATA_RELOCATION_SIZE(h) ((h)->header.a_drsize)
	253	#define H_GET_SYMBOL_TABLE_SIZE(h) ((h)->header.a_syms)
	254	#define H_GET_MAGIC_NUMBER(h) ((h)->header.a_info)
	255	#define H_GET_ENTRY_POINT(h) ((h)->header.a_entry)
	256	#define H_GET_STRING_SIZE(h) ((h)->string_table_size)
a79c6033 RP	257	#define H_GET_LINENO_SIZE(h) (0)
a79c6033 RP	258
fecd2382 RP	259	#ifdef EXEC_MACHINE_TYPE
	260	#define H_GET_MACHINE_TYPE(h) ((h)->header.a_machtype)
	261	#endif /* EXEC_MACHINE_TYPE */
	262	#ifdef EXEC_VERSION
	263	#define H_GET_VERSION(h) ((h)->header.a_version)
	264	#endif /* EXEC_VERSION */
	265
a79c6033 RP	266	#define H_SET_TEXT_SIZE(h,v) ((h)->header.a_text = (v))
	267	#define H_SET_DATA_SIZE(h,v) ((h)->header.a_data = (v))
	268	#define H_SET_BSS_SIZE(h,v) ((h)->header.a_bss = (v))
fecd2382 RP	269
	270	#define H_SET_RELOCATION_SIZE(h,t,d) (H_SET_TEXT_RELOCATION_SIZE((h),(t)),\
	271	H_SET_DATA_RELOCATION_SIZE((h),(d)))
	272
	273	#define H_SET_TEXT_RELOCATION_SIZE(h,v) ((h)->header.a_trsize = (v))
	274	#define H_SET_DATA_RELOCATION_SIZE(h,v) ((h)->header.a_drsize = (v))
	275	#define H_SET_SYMBOL_TABLE_SIZE(h,v) ((h)->header.a_syms = (v) * \
	276	sizeof(struct nlist))
	277
	278	#define H_SET_MAGIC_NUMBER(h,v) ((h)->header.a_magic = (v))
	279
	280	#define H_SET_ENTRY_POINT(h,v) ((h)->header.a_entry = (v))
	281	#define H_SET_STRING_SIZE(h,v) ((h)->string_table_size = (v))
	282	#ifdef EXEC_MACHINE_TYPE
	283	#define H_SET_MACHINE_TYPE(h,v) ((h)->header.a_machtype = (v))
	284	#endif /* EXEC_MACHINE_TYPE */
	285	#ifdef EXEC_VERSION
	286	#define H_SET_VERSION(h,v) ((h)->header.a_version = (v))
	287	#endif /* EXEC_VERSION */
	288
355afbcd KR	289	typedef struct
	290	{
	291	struct exec header; /* a.out header */
	292	long string_table_size; /* names + '\0' + sizeof(int) */
	293	}
	294
	295	object_headers;
fecd2382 RP	296
fecd2382 RP	297	/* unused hooks. */
9439f48f RP	298	#define OBJ_EMIT_LINENO(a, b, c) {;}
9439f48f RP	299	#define obj_pre_write_hook(a) {;}
fecd2382	300
a87b3269	301	#if __STDC__
a79c6033	302	struct fix;
4f0bccc7 ILT	303	#endif
	304	extern void tc_aout_fix_to_chars PARAMS ((char *where,
	305	struct fix *fixP,
	306	relax_addressT segment_address));
	307	extern void tc_bout_fix_to_chars PARAMS ((char *where,
	308	struct fix *fixP,
	309	relax_addressT segment_address));
a79c6033	310
8c5e0f5e KR	311	#define AOUT_STABS
8c5e0f5e KR	312
fecd2382	313	/* end of obj-bout.h */