[binutils.git] / include / coff-i960.h

/*** coff information for 80960.  Origins: Intel corp, natch. */

/* NOTE: Tagentries (cf TAGBITS) are no longer used by the 960 */

/********************** FILE HEADER **********************/

struct external_filehdr {
	char f_magic[2];	/* magic number			*/
	char f_nscns[2];	/* number of sections		*/
	char f_timdat[4];	/* time & date stamp		*/
	char f_symptr[4];	/* file pointer to symtab	*/
	char f_nsyms[4];	/* number of symtab entries	*/
	char f_opthdr[2];	/* sizeof(optional hdr)		*/
	char f_flags[2];	/* flags			*/
};

#define OMAGIC      (0407)	/* old impure format. data immediately
                                   follows text. both sections are rw. */
#define NMAGIC      (0410)	/* split i&d, read-only text */

/*
*	Intel 80960 (I960) processor flags.
*	F_I960TYPE == mask for processor type field. 
*/

#define	F_I960TYPE	(0xf000)
#define	F_I960CORE	(0x1000)
#define	F_I960KB	(0x2000)
#define	F_I960SB	(0x2000)
#define	F_I960MC	(0x3000)
#define	F_I960XA	(0x4000)
#define	F_I960CA	(0x5000)
#define	F_I960KA	(0x6000)
#define	F_I960SA	(0x6000)


/** i80960 Magic Numbers
*/

#define I960ROMAGIC	(0x160)	/* read-only text segments */
#define I960RWMAGIC	(0x161)	/* read-write text segments */

#define I960BADMAG(x) (((x).f_magic!=I960ROMAGIC) && ((x).f_magic!=I960RWMAGIC))

#define	FILHDR	struct external_filehdr
#define	FILHSZ	20

/********************** AOUT "OPTIONAL HEADER" **********************/

typedef struct {
	unsigned long	phys_addr;
	unsigned long	bitarray;
} TAGBITS;


typedef struct 
{
  char 	magic[2];		/* type of file				*/
  char	vstamp[2];		/* version stamp			*/
  char	tsize[4];		/* text size in bytes, padded to FW bdry*/
  char	dsize[4];		/* initialized data "  "		*/
  char	bsize[4];		/* uninitialized data "   "		*/
  char	entry[4];		/* entry pt.				*/
  char 	text_start[4];		/* base of text used for this file */
  char 	data_start[4];		/* base of data used for this file */
  char	tagentries[4];		/* number of tag entries to follow */
}
AOUTHDR;

/* return a pointer to the tag bits array */

#define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1))

/* compute size of a header */

/*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/
#define AOUTSZ (sizeof(AOUTHDR))


/********************** SECTION HEADER **********************/


struct external_scnhdr {
	char		s_name[8];	/* section name			*/
	char		s_paddr[4];	/* physical address, aliased s_nlib */
	char		s_vaddr[4];	/* virtual address		*/
	char		s_size[4];	/* section size			*/
	char		s_scnptr[4];	/* file ptr to raw data for section */
	char		s_relptr[4];	/* file ptr to relocation	*/
	char		s_lnnoptr[4];	/* file ptr to line numbers	*/
	char		s_nreloc[2];	/* number of relocation entries	*/
	char		s_nlnno[2];	/* number of line number entries*/
	char		s_flags[4];	/* flags			*/
	char 		s_align[4];	/* section alignment		*/
};


#define	SCNHDR	struct external_scnhdr
#define	SCNHSZ	sizeof(SCNHDR)


/********************** LINE NUMBERS **********************/

/* 1 line number entry for every "breakpointable" source line in a section.
 * Line numbers are grouped on a per function basis; first entry in a function
 * grouping will have l_lnno = 0 and in place of physical address will be the
 * symbol table index of the function name.
 */
struct external_lineno {
	union {
		char l_symndx[4];	/* function name symbol index, iff l_lnno == 0*/
		char l_paddr[4];	/* (physical) address of line number	*/
	} l_addr;
	char l_lnno[2];		/* line number		*/
	char padding[2];	/* force alignment	*/
};


#define	LINENO	struct external_lineno
#define	LINESZ	8


/********************** SYMBOLS **********************/

#define SYMNMLEN	8	/* # characters in a symbol name	*/
#define FILNMLEN	14	/* # characters in a file name		*/
#define DIMNUM		4	/* # array dimensions in auxiliary entry */

struct external_syment 
{
  union {
    char e_name[SYMNMLEN];
    struct {
      char e_zeroes[4];
      char e_offset[4];
    } e;
  } e;
  char e_value[4];
  char e_scnum[2];
  char e_flags[2];
  char e_type[4];
  char e_sclass[1];
  char e_numaux[1];
  char pad2[2];
};


#define N_BTMASK	(0x1f)
#define N_TMASK		(0x60)
#define N_BTSHFT	(5)
#define N_TSHIFT	(2)
  
union external_auxent {
	struct {
		char x_tagndx[4];	/* str, un, or enum tag indx */
		union {
			struct {
			    char  x_lnno[2]; /* declaration line number */
			    char  x_size[2]; /* str/union/array size */
			} x_lnsz;
			char x_fsize[4];	/* size of function */
		} x_misc;
		union {
			struct {		/* if ISFCN, tag, or .bb */
			    char x_lnnoptr[4];	/* ptr to fcn line # */
			    char x_endndx[4];	/* entry ndx past block end */
			} x_fcn;
			struct {		/* if ISARY, up to 4 dimen. */
			    char x_dimen[DIMNUM][2];
			} x_ary;
		} x_fcnary;
		char x_tvndx[2];		/* tv index */
	} x_sym;

	union {
		char x_fname[FILNMLEN];
		struct {
			char x_zeroes[4];
			char x_offset[4];
		} x_n;
	} x_file;

	struct {
		char x_scnlen[4];			/* section length */
		char x_nreloc[2];	/* # relocation entries */
		char x_nlinno[2];	/* # line numbers */
	} x_scn;

        struct {
		char x_tvfill[4];	/* tv fill value */
		char x_tvlen[2];	/* length of .tv */
		char x_tvran[2][2];	/* tv range */
	} x_tv;		/* info about .tv section (in auxent of symbol .tv)) */

	/******************************************
	 *  I960-specific *2nd* aux. entry formats
	 ******************************************/
	struct {
	  /* This is a very old typo that keeps getting propagated. */
#define x_stdindx x_stindx
		char x_stindx[4];	/* sys. table entry */
	} x_sc;	/* system call entry */

	struct {
		char x_balntry[4]; /* BAL entry point */
	} x_bal; /* BAL-callable function */

        struct {
		char x_timestamp[4];	        /* time stamp */
		char 	x_idstring[20];	        /* producer identity string */
	} x_ident;	                        /* Producer ident info */

};


#define	SYMENT	struct external_syment
#define	SYMESZ	sizeof(SYMENT)			/* FIXME - calc by hand */
#define	AUXENT	union external_auxent
#define	AUXESZ	sizeof(AUXENT)			/* FIXME - calc by hand */

#	define _ETEXT	"_etext"

/********************** RELOCATION DIRECTIVES **********************/

struct external_reloc {
  char r_vaddr[4];
  char r_symndx[4];
  char r_type[2];
  char pad[2];
};


/* Relevent values for r_type and i960.  Would someone please document them */


#define RELOC struct external_reloc
#define RELSZ 12

#define DEFAULT_DATA_SECTION_ALIGNMENT 4
#define DEFAULT_BSS_SECTION_ALIGNMENT 4
#define DEFAULT_TEXT_SECTION_ALIGNMENT 16
/* For new sections we havn't heard of before */
#define DEFAULT_SECTION_ALIGNMENT 4
Commit	Line	Data
a07cc613 JG	1	/*** coff information for 80960. Origins: Intel corp, natch. */
a07cc613 JG	2
d6c01d81	3	/* NOTE: Tagentries (cf TAGBITS) are no longer used by the 960 */
a07cc613 JG	4
	5	/******************** FILE HEADER ********************/
	6
a8f3d651 SC	7	struct external_filehdr {
	8	char f_magic[2]; /* magic number */
	9	char f_nscns[2]; /* number of sections */
	10	char f_timdat[4]; /* time & date stamp */
	11	char f_symptr[4]; /* file pointer to symtab */
	12	char f_nsyms[4]; /* number of symtab entries */
	13	char f_opthdr[2]; /* sizeof(optional hdr) */
	14	char f_flags[2]; /* flags */
	15	};
	16
ea017097 SC	17	#define OMAGIC (0407) /* old impure format. data immediately
	18	follows text. both sections are rw. */
	19	#define NMAGIC (0410) /* split i&d, read-only text */
a07cc613 JG	20
a07cc613 JG	21	/*
a8f3d651 SC	22	* Intel 80960 (I960) processor flags.
	23	* F_I960TYPE == mask for processor type field.
	24	*/
a07cc613 JG	25
	26	#define F_I960TYPE (0xf000)
	27	#define F_I960CORE (0x1000)
	28	#define F_I960KB (0x2000)
	29	#define F_I960SB (0x2000)
	30	#define F_I960MC (0x3000)
	31	#define F_I960XA (0x4000)
	32	#define F_I960CA (0x5000)
	33	#define F_I960KA (0x6000)
	34	#define F_I960SA (0x6000)
a8f3d651 SC	35
a8f3d651 SC	36
a8f3d651 SC	37	/** i80960 Magic Numbers
a8f3d651 SC	38	*/
a07cc613 JG	39
	40	#define I960ROMAGIC (0x160) /* read-only text segments */
	41	#define I960RWMAGIC (0x161) /* read-write text segments */
	42
	43	#define I960BADMAG(x) (((x).f_magic!=I960ROMAGIC) && ((x).f_magic!=I960RWMAGIC))
	44
a8f3d651 SC	45	#define FILHDR struct external_filehdr
a8f3d651 SC	46	#define FILHSZ 20
a07cc613 JG	47
	48	/******************** AOUT "OPTIONAL HEADER" ********************/
	49
	50	typedef struct {
	51	unsigned long phys_addr;
	52	unsigned long bitarray;
	53	} TAGBITS;
	54
	55
a8f3d651 SC	56
	57	typedef struct
	58	{
	59	char magic[2]; /* type of file */
	60	char vstamp[2]; /* version stamp */
	61	char tsize[4]; /* text size in bytes, padded to FW bdry*/
	62	char dsize[4]; /* initialized data " " */
	63	char bsize[4]; /* uninitialized data " " */
	64	char entry[4]; /* entry pt. */
	65	char text_start[4]; /* base of text used for this file */
	66	char data_start[4]; /* base of data used for this file */
a8f3d651	67	char tagentries[4]; /* number of tag entries to follow */
a8f3d651 SC	68	}
a8f3d651 SC	69	AOUTHDR;
a07cc613 JG	70
	71	/* return a pointer to the tag bits array */
	72
	73	#define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1))
	74
	75	/* compute size of a header */
	76
	77	/#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentriessizeof(TAGBITS)))*/
	78	#define AOUTSZ (sizeof(AOUTHDR))
	79
	80
a07cc613 JG	81
	82	/******************** SECTION HEADER ********************/
	83
a07cc613	84
a8f3d651 SC	85	struct external_scnhdr {
	86	char s_name[8]; /* section name */
	87	char s_paddr[4]; /* physical address, aliased s_nlib */
	88	char s_vaddr[4]; /* virtual address */
	89	char s_size[4]; /* section size */
	90	char s_scnptr[4]; /* file ptr to raw data for section */
	91	char s_relptr[4]; /* file ptr to relocation */
	92	char s_lnnoptr[4]; /* file ptr to line numbers */
	93	char s_nreloc[2]; /* number of relocation entries */
	94	char s_nlnno[2]; /* number of line number entries*/
	95	char s_flags[4]; /* flags */
a8f3d651	96	char s_align[4]; /* section alignment */
a8f3d651 SC	97	};
a8f3d651 SC	98
a07cc613	99
a8f3d651	100	#define SCNHDR struct external_scnhdr
a07cc613 JG	101	#define SCNHSZ sizeof(SCNHDR)
	102
	103
	104	/******************** LINE NUMBERS ********************/
	105
	106	/* 1 line number entry for every "breakpointable" source line in a section.
	107	* Line numbers are grouped on a per function basis; first entry in a function
	108	* grouping will have l_lnno = 0 and in place of physical address will be the
	109	* symbol table index of the function name.
	110	*/
81623791 SC	111	struct external_lineno {
	112	union {
	113	char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
	114	char l_paddr[4]; /* (physical) address of line number */
	115	} l_addr;
a8f3d651	116	char l_lnno[2]; /* line number */
81623791 SC	117	char padding[2]; /* force alignment */
	118	};
	119
a07cc613	120
81623791 SC	121	#define LINENO struct external_lineno
81623791 SC	122	#define LINESZ 8
a07cc613 JG	123
	124
	125	/******************** SYMBOLS ********************/
	126
	127	#define SYMNMLEN 8 /* # characters in a symbol name */
	128	#define FILNMLEN 14 /* # characters in a file name */
	129	#define DIMNUM 4 /* # array dimensions in auxiliary entry */
	130
81623791 SC	131	struct external_syment
	132	{
	133	union {
	134	char e_name[SYMNMLEN];
	135	struct {
	136	char e_zeroes[4];
	137	char e_offset[4];
	138	} e;
	139	} e;
	140	char e_value[4];
	141	char e_scnum[2];
	142	char e_flags[2];
	143	char e_type[4];
	144	char e_sclass[1];
	145	char e_numaux[1];
	146	char pad2[2];
	147	};
	148
	149
a07cc613	150
a07cc613 JG	151
	152	#define N_BTMASK (0x1f)
	153	#define N_TMASK (0x60)
	154	#define N_BTSHFT (5)
	155	#define N_TSHIFT (2)
	156
81623791 SC	157	union external_auxent {
	158	struct {
	159	char x_tagndx[4]; /* str, un, or enum tag indx */
	160	union {
	161	struct {
	162	char x_lnno[2]; /* declaration line number */
	163	char x_size[2]; /* str/union/array size */
	164	} x_lnsz;
	165	char x_fsize[4]; /* size of function */
	166	} x_misc;
	167	union {
	168	struct { /* if ISFCN, tag, or .bb */
	169	char x_lnnoptr[4]; /* ptr to fcn line # */
	170	char x_endndx[4]; /* entry ndx past block end */
	171	} x_fcn;
	172	struct { /* if ISARY, up to 4 dimen. */
	173	char x_dimen[DIMNUM][2];
	174	} x_ary;
	175	} x_fcnary;
	176	char x_tvndx[2]; /* tv index */
	177	} x_sym;
	178
	179	union {
	180	char x_fname[FILNMLEN];
	181	struct {
	182	char x_zeroes[4];
	183	char x_offset[4];
	184	} x_n;
	185	} x_file;
	186
	187	struct {
	188	char x_scnlen[4]; /* section length */
	189	char x_nreloc[2]; /* # relocation entries */
	190	char x_nlinno[2]; /* # line numbers */
	191	} x_scn;
	192
	193	struct {
	194	char x_tvfill[4]; /* tv fill value */
	195	char x_tvlen[2]; /* length of .tv */
	196	char x_tvran[2][2]; /* tv range */
	197	} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
	198
	199	/******************************************
	200	* I960-specific 2nd aux. entry formats
	201	******************************************/
	202	struct {
	203	/* This is a very old typo that keeps getting propagated. */
	204	#define x_stdindx x_stindx
	205	char x_stindx[4]; /* sys. table entry */
	206	} x_sc; /* system call entry */
a07cc613	207
81623791 SC	208	struct {
	209	char x_balntry[4]; /* BAL entry point */
	210	} x_bal; /* BAL-callable function */
	211
	212	struct {
	213	char x_timestamp[4]; /* time stamp */
	214	char x_idstring[20]; /* producer identity string */
	215	} x_ident; /* Producer ident info */
	216
	217	};
	218
a07cc613	219
a07cc613	220
81623791	221	#define SYMENT struct external_syment
a8f3d651	222	#define SYMESZ sizeof(SYMENT) /* FIXME - calc by hand */
81623791	223	#define AUXENT union external_auxent
a8f3d651	224	#define AUXESZ sizeof(AUXENT) /* FIXME - calc by hand */
a07cc613	225
a07cc613	226	# define _ETEXT "_etext"
a07cc613 JG	227
	228	/******************** RELOCATION DIRECTIVES ********************/
	229
81623791 SC	230	struct external_reloc {
	231	char r_vaddr[4];
	232	char r_symndx[4];
	233	char r_type[2];
	234	char pad[2];
	235	};
	236
a07cc613 JG	237
	238	/* Relevent values for r_type and i960. Would someone please document them */
	239
a07cc613	240
81623791 SC	241	#define RELOC struct external_reloc
81623791 SC	242	#define RELSZ 12
a07cc613 JG	243
	244	#define DEFAULT_DATA_SECTION_ALIGNMENT 4
	245	#define DEFAULT_BSS_SECTION_ALIGNMENT 4
	246	#define DEFAULT_TEXT_SECTION_ALIGNMENT 16
	247	/* For new sections we havn't heard of before */
	248	#define DEFAULT_SECTION_ALIGNMENT 4