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

/* b.out object file format
   Copyright (C) 1989, 1990, 1991, 1992 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
01170860	2	Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
355afbcd	3
a39116f1	4	This file is part of GAS, the GNU Assembler.
355afbcd	5
a39116f1 RP	6	GAS is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as
	8	published by the Free Software Foundation; either version 2,
	9	or (at your option) any later version.
355afbcd	10
a39116f1 RP	11	GAS is distributed in the hope that it will be useful, but
	12	WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
	14	the GNU General Public License for more details.
355afbcd	15
a39116f1 RP	16	You should have received a copy of the GNU General Public
a39116f1 RP	17	License along with GAS; see the file COPYING. If not, write
a2a5a4fa	18	to the Free Software Foundation, 59 Temple Place - Suite 330, Cambridge, MA
a39116f1	19	02139, USA. */
fecd2382	20
fecd2382 RP	21	/*
	22	* This file is a modified version of 'a.out.h'. It is to be used in all GNU
	23	* tools modified to support the i80960 b.out format (or tools that operate on
	24	* object files created by such tools).
	25	*
	26	* All i80960 development is done in a CROSS-DEVELOPMENT environment. I.e.,
	27	* object code is generated on, and executed under the direction of a symbolic
	28	* debugger running on, a host system. We do not want to be subject to the
	29	* vagaries of which host it is or whether it supports COFF or a.out format, or
	30	* anything else. We DO want to:
	31	*
	32	* o always generate the same format object files, regardless of host.
	33	*
	34	* o have an 'a.out' header that we can modify for our own purposes
	35	* (the 80960 is typically an embedded processor and may require
	36	* enhanced linker support that the normal a.out.h header can't
	37	* accommodate).
	38	*
	39	* As for byte-ordering, the following rules apply:
	40	*
	41	* o Text and data that is actually downloaded to the target is always
	42	* in i80960 (little-endian) order.
	43	*
	44	* o All other numbers (in the header, symbols, relocation directives)
	45	* are in host byte-order: object files CANNOT be lifted from a
	46	* little-end host and used on a big-endian (or vice versa) without
	47	* modification.
8ae35e59 ILT	48	* ==> THIS IS NO LONGER TRUE USING BFD. WE CAN GENERATE ANY BYTE ORDER
	49	* FOR THE HEADER, AND READ ANY BYTE ORDER. PREFERENCE WOULD BE TO
	50	* USE LITTLE-ENDIAN BYTE ORDER THROUGHOUT, REGARDLESS OF HOST. <==
fecd2382 RP	51	*
	52	* o The downloader ('comm960') takes care to generate a pseudo-header
	53	* with correct (i80960) byte-ordering before shipping text and data
	54	* off to the NINDY monitor in the target systems. Symbols and
	55	* relocation info are never sent to the target.
	56	*/
	57
	58
	59	#define OBJ_BOUT 1
	60
12aab635 KR	61	#define OUTPUT_FLAVOR bfd_target_aout_flavour
12aab635 KR	62
fecd2382 RP	63	#include "targ-cpu.h"
fecd2382 RP	64
fecd2382 RP	65	#define OBJ_DEFAULT_OUTPUT_FILE_NAME "b.out"
	66
	67	extern const short seg_N_TYPE[];
355afbcd	68	extern const segT N_TYPE_seg[];
fecd2382 RP	69
	70	#define BMAGIC 0415
	71	/* We don't accept the following (see N_BADMAG macro).
	72	* They're just here so GNU code will compile.
	73	*/
	74	#define OMAGIC 0407 /* old impure format */
	75	#define NMAGIC 0410 /* read-only text */
	76	#define ZMAGIC 0413 /* demand load format */
	77
	78	#ifndef DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE
	79	#define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE (BMAGIC)
	80	#endif /* DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE */
	81
	82	/* FILE HEADER
	83	* All 'lengths' are given as a number of bytes.
	84	* All 'alignments' are for relinkable files only; an alignment of
	85	* 'n' indicates the corresponding segment must begin at an
	86	* address that is a multiple of (2**n).
	87	*/
355afbcd KR	88	struct exec
	89	{
	90	/* Standard stuff */
	91	unsigned long a_magic; /* Identifies this as a b.out file */
	92	unsigned long a_text; /* Length of text */
	93	unsigned long a_data; /* Length of data */
	94	unsigned long a_bss; /* Length of runtime uninitialized data area */
	95	unsigned long a_syms; /* Length of symbol table */
	96	unsigned long a_entry; /* Runtime start address */
	97	unsigned long a_trsize; /* Length of text relocation info */
	98	unsigned long a_drsize; /* Length of data relocation info */
	99
	100	/* Added for i960 */
	101	unsigned long a_tload; /* Text runtime load address */
	102	unsigned long a_dload; /* Data runtime load address */
	103	unsigned char a_talign; /* Alignment of text segment */
	104	unsigned char a_dalign; /* Alignment of data segment */
	105	unsigned char a_balign; /* Alignment of bss segment */
	106	unsigned char a_relaxable; /* Contains enough info to relax */
	107	};
fecd2382 RP	108
	109	#define N_BADMAG(x) (((x).a_magic)!=BMAGIC)
	110	#define N_TXTOFF(x) ( sizeof(struct exec) )
	111	#define N_DATOFF(x) ( N_TXTOFF(x) + (x).a_text )
	112	#define N_TROFF(x) ( N_DATOFF(x) + (x).a_data )
	113	#define N_DROFF(x) ( N_TROFF(x) + (x).a_trsize )
	114	#define N_SYMOFF(x) ( N_DROFF(x) + (x).a_drsize )
	115	#define N_STROFF(x) ( N_SYMOFF(x) + (x).a_syms )
	116
	117	/* A single entry in the symbol table
	118	*/
355afbcd KR	119	struct nlist
	120	{
	121	union
	122	{
	123	char *n_name;
	124	struct nlist *n_next;
	125	long n_strx; /* Index into string table */
	126	}
	127	n_un;
	128	unsigned char n_type; /* See below */
	129	char n_other; /* Used in i80960 support -- see below */
	130	short n_desc;
	131	unsigned long n_value;
	132	};
fecd2382 RP	133
	134	typedef struct nlist obj_symbol_type;
	135
	136	/* Legal values of n_type
	137	*/
355afbcd KR	138	#define N_UNDF 0 /* Undefined symbol */
	139	#define N_ABS 2 /* Absolute symbol */
	140	#define N_TEXT 4 /* Text symbol */
	141	#define N_DATA 6 /* Data symbol */
	142	#define N_BSS 8 /* BSS symbol */
	143	#define N_FN 31 /* Filename symbol */
fecd2382	144
355afbcd KR	145	#define N_EXT 1 /* External symbol (OR'd in with one of above) */
	146	#define N_TYPE 036 /* Mask for all the type bits */
	147	#define N_STAB 0340 /* Mask for all bits used for SDB entries */
fecd2382 RP	148
fecd2382 RP	149	#ifndef CUSTOM_RELOC_FORMAT
355afbcd KR	150	struct relocation_info
	151	{
	152	int r_address; /* File address of item to be relocated */
	153	unsigned
	154	r_index:24, /* Index of symbol on which relocation is based*/
	155	r_pcrel:1, /* 1 => relocate PC-relative; else absolute
a39116f1 RP	156	* On i960, pc-relative implies 24-bit
	157	* address, absolute implies 32-bit.
	158	*/
355afbcd	159	r_length:2, /* Number of bytes to relocate:
a39116f1 RP	160	* 0 => 1 byte
	161	* 1 => 2 bytes
	162	* 2 => 4 bytes -- only value used for i960
	163	*/
355afbcd KR	164	r_extern:1, r_bsr:1, /* Something for the GNU NS32K assembler */
	165	r_disp:1, /* Something for the GNU NS32K assembler */
	166	r_callj:1, /* 1 if relocation target is an i960 'callj' */
	167	nuthin:1; /* Unused */
	168	};
	169
fecd2382 RP	170	#endif /* CUSTOM_RELOC_FORMAT */
fecd2382 RP	171
fecd2382 RP	172	/*
	173	* Macros to extract information from a symbol table entry.
	174	* This syntaxic indirection allows independence regarding a.out or coff.
	175	* The argument (s) of all these macros is a pointer to a symbol table entry.
	176	*/
	177
	178	/* Predicates */
	179	/* True if the symbol is external */
	180	#define S_IS_EXTERNAL(s) ((s)->sy_symbol.n_type & N_EXT)
	181
	182	/* True if symbol has been defined, ie is in N_{TEXT,DATA,BSS,ABS} or N_EXT */
	183	#define S_IS_DEFINED(s) ((S_GET_TYPE(s) != N_UNDF) \|\| (S_GET_DESC(s) != 0))
e24cf2b5 ILT	184
	185	#define S_IS_COMMON(s) \
	186	(S_GET_TYPE (s) == N_UNDF && S_GET_VALUE (s) != 0)
	187
fecd2382 RP	188	#define S_IS_REGISTER(s) ((s)->sy_symbol.n_type == N_REGISTER)
	189
	190	/* True if a debug special symbol entry */
	191	#define S_IS_DEBUG(s) ((s)->sy_symbol.n_type & N_STAB)
	192	/* True if a symbol is local symbol name */
9e396994 ILT	193	#define S_IS_LOCAL(s) \
	194	(S_GET_NAME (s) \
	195	&& !S_IS_DEBUG (s) \
	196	&& (strchr (S_GET_NAME (s), '\001') != NULL \
	197	\|\| strchr (S_GET_NAME (s), '\002') != NULL \
	198	\|\| (S_LOCAL_NAME(s) && !flag_keep_locals)))
fecd2382 RP	199	/* True if a symbol is not defined in this file */
	200	#define S_IS_EXTERN(s) ((s)->sy_symbol.n_type & N_EXT)
	201	/* True if the symbol has been generated because of a .stabd directive */
	202	#define S_IS_STABD(s) (S_GET_NAME(s) == NULL)
	203
	204	/* Accessors */
fecd2382 RP	205	/* The name of the symbol */
	206	#define S_GET_NAME(s) ((s)->sy_symbol.n_un.n_name)
	207	/* The pointer to the string table */
	208	#define S_GET_OFFSET(s) ((s)->sy_symbol.n_un.n_strx)
	209	/* The type of the symbol */
	210	#define S_GET_TYPE(s) ((s)->sy_symbol.n_type & N_TYPE)
	211	/* The numeric value of the segment */
	212	#define S_GET_SEGMENT(s) (N_TYPE_seg[S_GET_TYPE(s)])
	213	/* The n_other expression value */
	214	#define S_GET_OTHER(s) ((s)->sy_symbol.n_other)
	215	/* The n_desc expression value */
	216	#define S_GET_DESC(s) ((s)->sy_symbol.n_desc)
	217
	218	/* Modifiers */
fecd2382	219	/* Assume that a symbol cannot be simultaneously in more than on segment */
a39116f1	220	/* set segment */
fecd2382 RP	221	#define S_SET_SEGMENT(s,seg) ((s)->sy_symbol.n_type &= ~N_TYPE,(s)->sy_symbol.n_type\|=SEGMENT_TO_SYMBOL_TYPE(seg))
	222	/* The symbol is external */
	223	#define S_SET_EXTERNAL(s) ((s)->sy_symbol.n_type \|= N_EXT)
	224	/* The symbol is not external */
	225	#define S_CLEAR_EXTERNAL(s) ((s)->sy_symbol.n_type &= ~N_EXT)
	226	/* Set the name of the symbol */
	227	#define S_SET_NAME(s,v) ((s)->sy_symbol.n_un.n_name = (v))
	228	/* Set the offset in the string table */
	229	#define S_SET_OFFSET(s,v) ((s)->sy_symbol.n_un.n_strx = (v))
	230	/* Set the n_other expression value */
	231	#define S_SET_OTHER(s,v) ((s)->sy_symbol.n_other = (v))
	232	/* Set the n_desc expression value */
	233	#define S_SET_DESC(s,v) ((s)->sy_symbol.n_desc = (v))
4f0bccc7 ILT	234	/* Set the n_type value */
4f0bccc7 ILT	235	#define S_SET_TYPE(s,v) ((s)->sy_symbol.n_type = (v))
fecd2382 RP	236
	237	/* File header macro and type definition */
	238
	239	#define H_GET_FILE_SIZE(h) (sizeof(struct exec) + \
	240	H_GET_TEXT_SIZE(h) + H_GET_DATA_SIZE(h) + \
	241	H_GET_SYMBOL_TABLE_SIZE(h) + \
	242	H_GET_TEXT_RELOCATION_SIZE(h) + \
	243	H_GET_DATA_RELOCATION_SIZE(h) + \
	244	(h)->string_table_size)
	245
a79c6033	246	#define H_GET_HEADER_SIZE(h) (sizeof(struct exec))
fecd2382 RP	247	#define H_GET_TEXT_SIZE(h) ((h)->header.a_text)
	248	#define H_GET_DATA_SIZE(h) ((h)->header.a_data)
	249	#define H_GET_BSS_SIZE(h) ((h)->header.a_bss)
	250	#define H_GET_TEXT_RELOCATION_SIZE(h) ((h)->header.a_trsize)
	251	#define H_GET_DATA_RELOCATION_SIZE(h) ((h)->header.a_drsize)
	252	#define H_GET_SYMBOL_TABLE_SIZE(h) ((h)->header.a_syms)
	253	#define H_GET_MAGIC_NUMBER(h) ((h)->header.a_info)
	254	#define H_GET_ENTRY_POINT(h) ((h)->header.a_entry)
	255	#define H_GET_STRING_SIZE(h) ((h)->string_table_size)
a79c6033 RP	256	#define H_GET_LINENO_SIZE(h) (0)
a79c6033 RP	257
fecd2382 RP	258	#ifdef EXEC_MACHINE_TYPE
	259	#define H_GET_MACHINE_TYPE(h) ((h)->header.a_machtype)
	260	#endif /* EXEC_MACHINE_TYPE */
	261	#ifdef EXEC_VERSION
	262	#define H_GET_VERSION(h) ((h)->header.a_version)
	263	#endif /* EXEC_VERSION */
	264
a79c6033 RP	265	#define H_SET_TEXT_SIZE(h,v) ((h)->header.a_text = (v))
	266	#define H_SET_DATA_SIZE(h,v) ((h)->header.a_data = (v))
	267	#define H_SET_BSS_SIZE(h,v) ((h)->header.a_bss = (v))
fecd2382 RP	268
	269	#define H_SET_RELOCATION_SIZE(h,t,d) (H_SET_TEXT_RELOCATION_SIZE((h),(t)),\
	270	H_SET_DATA_RELOCATION_SIZE((h),(d)))
	271
	272	#define H_SET_TEXT_RELOCATION_SIZE(h,v) ((h)->header.a_trsize = (v))
	273	#define H_SET_DATA_RELOCATION_SIZE(h,v) ((h)->header.a_drsize = (v))
	274	#define H_SET_SYMBOL_TABLE_SIZE(h,v) ((h)->header.a_syms = (v) * \
	275	sizeof(struct nlist))
	276
	277	#define H_SET_MAGIC_NUMBER(h,v) ((h)->header.a_magic = (v))
	278
	279	#define H_SET_ENTRY_POINT(h,v) ((h)->header.a_entry = (v))
	280	#define H_SET_STRING_SIZE(h,v) ((h)->string_table_size = (v))
	281	#ifdef EXEC_MACHINE_TYPE
	282	#define H_SET_MACHINE_TYPE(h,v) ((h)->header.a_machtype = (v))
	283	#endif /* EXEC_MACHINE_TYPE */
	284	#ifdef EXEC_VERSION
	285	#define H_SET_VERSION(h,v) ((h)->header.a_version = (v))
	286	#endif /* EXEC_VERSION */
	287
355afbcd KR	288	typedef struct
	289	{
	290	struct exec header; /* a.out header */
	291	long string_table_size; /* names + '\0' + sizeof(int) */
	292	}
	293
	294	object_headers;
fecd2382 RP	295
fecd2382 RP	296	/* unused hooks. */
9439f48f RP	297	#define OBJ_EMIT_LINENO(a, b, c) {;}
9439f48f RP	298	#define obj_pre_write_hook(a) {;}
fecd2382	299
a87b3269	300	#if __STDC__
a79c6033	301	struct fix;
4f0bccc7 ILT	302	#endif
	303	extern void tc_aout_fix_to_chars PARAMS ((char *where,
	304	struct fix *fixP,
	305	relax_addressT segment_address));
	306	extern void tc_bout_fix_to_chars PARAMS ((char *where,
	307	struct fix *fixP,
	308	relax_addressT segment_address));
a79c6033	309
8c5e0f5e KR	310	#define AOUT_STABS
8c5e0f5e KR	311
fecd2382	312	/* end of obj-bout.h */