[deliverable/binutils-gdb.git] / include / coff-m68k.h

/*** coff information for M68K */

/********************** 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			*/
};


/* Motorola 68000/68008/68010/68020 */
#define	MC68MAGIC	0520
#define MC68KWRMAGIC	0520	/* writeable text segments */
#define	MC68TVMAGIC	0521
#define MC68KROMAGIC	0521	/* readonly shareable text segments */
#define MC68KPGMAGIC	0522	/* demand paged text segments */
#define	M68MAGIC	0210
#define	M68TVMAGIC	0211

#define M68KBADMAG(x) (((x).f_magic!=MC68MAGIC) && ((x).f_magic!=MC68KWRMAGIC) && ((x).f_magic!=MC68TVMAGIC) && \
  ((x).f_magic!=MC68KROMAGIC) && ((x).f_magic!=MC68KPGMAGIC) && ((x).f_magic!=M68MAGIC) && ((x).f_magic!=M68TVMAGIC) )

			
#define	FILHDR	struct external_filehdr
#define	FILHSZ	sizeof(FILHDR)


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


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 */
}
AOUTHDR;

#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			*/
};

/*
 * names of "special" sections
 */
#define _TEXT	".text"
#define _DATA	".data"
#define _BSS	".bss"


#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		*/
};


#define	LINENO	struct external_lineno
#define	LINESZ	sizeof(LINENO) 


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

#define E_SYMNMLEN	8	/* # characters in a symbol name	*/
#define E_FILNMLEN	14	/* # characters in a file name		*/
#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */

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


#define N_BTMASK	(017)
#define N_TMASK		(060)
#define N_BTSHFT	(4)
#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[E_DIMNUM][2];
			} x_ary;
		} x_fcnary;
		char x_tvndx[2];		/* tv index */
	} x_sym;

	union {
		char x_fname[E_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)) */


};

#define	SYMENT	struct external_syment
#define	SYMESZ	18	
#define	AUXENT	union external_auxent
#define	AUXESZ	18


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


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


#define RELOC struct external_reloc
#define RELSZ 10

#define DEFAULT_DATA_SECTION_ALIGNMENT 4
#define DEFAULT_BSS_SECTION_ALIGNMENT 4
#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
/* For new sections we havn't heard of before */
#define DEFAULT_SECTION_ALIGNMENT 4
Commit	Line	Data
9dce1776 SC	1	/*** coff information for M68K */
9dce1776 SC	2
9dce1776 SC	3	/******************** FILE HEADER ********************/
9dce1776 SC	4
a8f3d651 SC	5	struct external_filehdr {
	6	char f_magic[2]; /* magic number */
	7	char f_nscns[2]; /* number of sections */
	8	char f_timdat[4]; /* time & date stamp */
	9	char f_symptr[4]; /* file pointer to symtab */
	10	char f_nsyms[4]; /* number of symtab entries */
	11	char f_opthdr[2]; /* sizeof(optional hdr) */
	12	char f_flags[2]; /* flags */
	13	};
	14
9dce1776	15
8215bbac	16	/* Motorola 68000/68008/68010/68020 */
9dce1776 SC	17	#define MC68MAGIC 0520
	18	#define MC68KWRMAGIC 0520 /* writeable text segments */
	19	#define MC68TVMAGIC 0521
	20	#define MC68KROMAGIC 0521 /* readonly shareable text segments */
	21	#define MC68KPGMAGIC 0522 /* demand paged text segments */
	22	#define M68MAGIC 0210
	23	#define M68TVMAGIC 0211
	24
8215bbac JG	25	#define M68KBADMAG(x) (((x).f_magic!=MC68MAGIC) && ((x).f_magic!=MC68KWRMAGIC) && ((x).f_magic!=MC68TVMAGIC) && \
8215bbac JG	26	((x).f_magic!=MC68KROMAGIC) && ((x).f_magic!=MC68KPGMAGIC) && ((x).f_magic!=M68MAGIC) && ((x).f_magic!=M68TVMAGIC) )
9dce1776 SC	27
	28
	29
a8f3d651	30	#define FILHDR struct external_filehdr
9dce1776 SC	31	#define FILHSZ sizeof(FILHDR)
	32
	33
	34	/******************** AOUT "OPTIONAL HEADER" ********************/
a8f3d651 SC	35
	36
	37	typedef struct
	38	{
	39	char magic[2]; /* type of file */
	40	char vstamp[2]; /* version stamp */
	41	char tsize[4]; /* text size in bytes, padded to FW bdry*/
	42	char dsize[4]; /* initialized data " " */
	43	char bsize[4]; /* uninitialized data " " */
	44	char entry[4]; /* entry pt. */
	45	char text_start[4]; /* base of text used for this file */
	46	char data_start[4]; /* base of data used for this file */
a8f3d651 SC	47	}
a8f3d651 SC	48	AOUTHDR;
9dce1776 SC	49
	50	#define AOUTSZ (sizeof(AOUTHDR))
	51
	52
9dce1776 SC	53
	54	/******************** SECTION HEADER ********************/
	55
9dce1776	56
a8f3d651 SC	57	struct external_scnhdr {
	58	char s_name[8]; /* section name */
	59	char s_paddr[4]; /* physical address, aliased s_nlib */
	60	char s_vaddr[4]; /* virtual address */
	61	char s_size[4]; /* section size */
	62	char s_scnptr[4]; /* file ptr to raw data for section */
	63	char s_relptr[4]; /* file ptr to relocation */
	64	char s_lnnoptr[4]; /* file ptr to line numbers */
	65	char s_nreloc[2]; /* number of relocation entries */
	66	char s_nlnno[2]; /* number of line number entries*/
	67	char s_flags[4]; /* flags */
9dce1776 SC	68	};
	69
	70	/*
	71	* names of "special" sections
	72	*/
	73	#define _TEXT ".text"
	74	#define _DATA ".data"
	75	#define _BSS ".bss"
	76
9dce1776	77
a8f3d651	78	#define SCNHDR struct external_scnhdr
9dce1776 SC	79	#define SCNHSZ sizeof(SCNHDR)
	80
	81
	82	/******************** LINE NUMBERS ********************/
	83
	84	/* 1 line number entry for every "breakpointable" source line in a section.
	85	* Line numbers are grouped on a per function basis; first entry in a function
	86	* grouping will have l_lnno = 0 and in place of physical address will be the
	87	* symbol table index of the function name.
	88	*/
	89	struct external_lineno {
	90	union {
	91	char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
	92	char l_paddr[4]; /* (physical) address of line number */
	93	} l_addr;
	94	char l_lnno[2]; /* line number */
	95	};
	96
9dce1776 SC	97
	98	#define LINENO struct external_lineno
	99	#define LINESZ sizeof(LINENO)
	100
	101
	102	/******************** SYMBOLS ********************/
	103
054862cf JG	104	#define E_SYMNMLEN 8 /* # characters in a symbol name */
	105	#define E_FILNMLEN 14 /* # characters in a file name */
	106	#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
9dce1776 SC	107
	108	struct external_syment
	109	{
	110	union {
054862cf	111	char e_name[E_SYMNMLEN];
9dce1776 SC	112	struct {
	113	char e_zeroes[4];
	114	char e_offset[4];
	115	} e;
	116	} e;
	117	char e_value[4];
	118	char e_scnum[2];
	119	char e_type[2];
	120	char e_sclass[1];
	121	char e_numaux[1];
	122	};
	123
9dce1776	124
9dce1776	125
ea017097 SC	126	#define N_BTMASK (017)
	127	#define N_TMASK (060)
	128	#define N_BTSHFT (4)
9dce1776 SC	129	#define N_TSHIFT (2)
9dce1776 SC	130
9dce1776 SC	131
	132	union external_auxent {
	133	struct {
	134	char x_tagndx[4]; /* str, un, or enum tag indx */
	135	union {
	136	struct {
	137	char x_lnno[2]; /* declaration line number */
	138	char x_size[2]; /* str/union/array size */
	139	} x_lnsz;
	140	char x_fsize[4]; /* size of function */
	141	} x_misc;
	142	union {
	143	struct { /* if ISFCN, tag, or .bb */
	144	char x_lnnoptr[4]; /* ptr to fcn line # */
	145	char x_endndx[4]; /* entry ndx past block end */
	146	} x_fcn;
	147	struct { /* if ISARY, up to 4 dimen. */
054862cf	148	char x_dimen[E_DIMNUM][2];
9dce1776 SC	149	} x_ary;
	150	} x_fcnary;
	151	char x_tvndx[2]; /* tv index */
	152	} x_sym;
	153
	154	union {
054862cf	155	char x_fname[E_FILNMLEN];
9dce1776 SC	156	struct {
	157	char x_zeroes[4];
	158	char x_offset[4];
	159	} x_n;
	160	} x_file;
	161
	162	struct {
	163	char x_scnlen[4]; /* section length */
	164	char x_nreloc[2]; /* # relocation entries */
	165	char x_nlinno[2]; /* # line numbers */
	166	} x_scn;
	167
	168	struct {
	169	char x_tvfill[4]; /* tv fill value */
	170	char x_tvlen[2]; /* length of .tv */
	171	char x_tvran[2][2]; /* tv range */
	172	} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
	173
	174
9dce1776 SC	175	};
	176
	177	#define SYMENT struct external_syment
	178	#define SYMESZ 18
	179	#define AUXENT union external_auxent
	180	#define AUXESZ 18
	181
	182
9dce1776 SC	183
	184	/******************** RELOCATION DIRECTIVES ********************/
	185
9dce1776 SC	186
	187	struct external_reloc {
	188	char r_vaddr[4];
	189	char r_symndx[4];
	190	char r_type[2];
	191	};
	192
9dce1776 SC	193
	194	#define RELOC struct external_reloc
	195	#define RELSZ 10
	196
	197	#define DEFAULT_DATA_SECTION_ALIGNMENT 4
	198	#define DEFAULT_BSS_SECTION_ALIGNMENT 4
	199	#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
	200	/* For new sections we havn't heard of before */
	201	#define DEFAULT_SECTION_ALIGNMENT 4