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

/*** coff information for M68K */

#ifndef GNU_COFF_M68K_H
#define GNU_COFF_M68K_H 1

/********************** 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

/* this is the magic of the Bull dpx/2 */
#define MC68KBCSMAGIC	0526

/* This is Lynx's all-platform magic number for executables. */

#define LYNXCOFFMAGIC	0415

#define OMAGIC M68MAGIC

/* This intentionally does not include MC68KBCSMAGIC; it only includes
   magic numbers which imply that names do not have underscores.  */
#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) && ((x).f_magic!=LYNXCOFFMAGIC) )

/* Magic numbers for the a.out header.  */

#define PAGEMAGICEXECSWAPPED  0407 /* executable (swapped) */
#define PAGEMAGICPEXECSWAPPED 0410 /* pure executable (swapped) */
#define PAGEMAGICPEXECTSHLIB  0443 /* pure executable (target shared library) */
#define PAGEMAGICPEXECPAGED   0413 /* pure executable (paged) */

#define	FILHDR	struct external_filehdr
#define	FILHSZ	20


/********************** 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 28
#define AOUTHDRSZ 28


/********************** 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 _COMMENT ".comment"

#define	SCNHDR	struct external_scnhdr
#define	SCNHSZ	40


/********************** 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	8


/********************** 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];
#ifdef M68K_COFF_OFFSET
  char r_offset[4];
#endif

};


#define RELOC struct external_reloc

#ifdef M68K_COFF_OFFSET
#define RELSZ 14
#else
#define RELSZ 10
#endif

#endif /* GNU_COFF_M68K_H */
Commit	Line	Data
e5a1a2ea ILT	1	/*** coff information for M68K */
	2
	3	#ifndef GNU_COFF_M68K_H
	4	#define GNU_COFF_M68K_H 1
	5
	6	/******************** FILE HEADER ********************/
	7
	8	struct external_filehdr {
	9	char f_magic[2]; /* magic number */
	10	char f_nscns[2]; /* number of sections */
	11	char f_timdat[4]; /* time & date stamp */
	12	char f_symptr[4]; /* file pointer to symtab */
	13	char f_nsyms[4]; /* number of symtab entries */
	14	char f_opthdr[2]; /* sizeof(optional hdr) */
	15	char f_flags[2]; /* flags */
	16	};
	17
	18
	19	/* Motorola 68000/68008/68010/68020 */
	20	#define MC68MAGIC 0520
	21	#define MC68KWRMAGIC 0520 /* writeable text segments */
	22	#define MC68TVMAGIC 0521
	23	#define MC68KROMAGIC 0521 /* readonly shareable text segments */
	24	#define MC68KPGMAGIC 0522 /* demand paged text segments */
	25	#define M68MAGIC 0210
	26	#define M68TVMAGIC 0211
	27
	28	/* this is the magic of the Bull dpx/2 */
	29	#define MC68KBCSMAGIC 0526
	30
	31	/* This is Lynx's all-platform magic number for executables. */
	32
	33	#define LYNXCOFFMAGIC 0415
	34
	35	#define OMAGIC M68MAGIC
	36
	37	/* This intentionally does not include MC68KBCSMAGIC; it only includes
	38	magic numbers which imply that names do not have underscores. */
	39	#define M68KBADMAG(x) (((x).f_magic!=MC68MAGIC) && ((x).f_magic!=MC68KWRMAGIC) && ((x).f_magic!=MC68TVMAGIC) && \
	40	((x).f_magic!=MC68KROMAGIC) && ((x).f_magic!=MC68KPGMAGIC) && ((x).f_magic!=M68MAGIC) && ((x).f_magic!=M68TVMAGIC) && ((x).f_magic!=LYNXCOFFMAGIC) )
	41
	42	/* Magic numbers for the a.out header. */
	43
	44	#define PAGEMAGICEXECSWAPPED 0407 /* executable (swapped) */
	45	#define PAGEMAGICPEXECSWAPPED 0410 /* pure executable (swapped) */
	46	#define PAGEMAGICPEXECTSHLIB 0443 /* pure executable (target shared library) */
	47	#define PAGEMAGICPEXECPAGED 0413 /* pure executable (paged) */
	48
	49	#define FILHDR struct external_filehdr
	50	#define FILHSZ 20
	51
	52
	53	/******************** AOUT "OPTIONAL HEADER" ********************/
	54
	55
	56	typedef struct
	57	{
	58	char magic[2]; /* type of file */
	59	char vstamp[2]; /* version stamp */
	60	char tsize[4]; /* text size in bytes, padded to FW bdry*/
	61	char dsize[4]; /* initialized data " " */
	62	char bsize[4]; /* uninitialized data " " */
	63	char entry[4]; /* entry pt. */
	64	char text_start[4]; /* base of text used for this file */
65	char data_start[4]; /* base of data used for this file */
66	}
67	AOUTHDR;
68
69	#define AOUTSZ 28
70	#define AOUTHDRSZ 28
71
72
73	/******************** SECTION HEADER ********************/
74
75
76	struct external_scnhdr {
77	char s_name[8]; /* section name */
78	char s_paddr[4]; /* physical address, aliased s_nlib */
79	char s_vaddr[4]; /* virtual address */
80	char s_size[4]; /* section size */
81	char s_scnptr[4]; /* file ptr to raw data for section */
82	char s_relptr[4]; /* file ptr to relocation */
83	char s_lnnoptr[4]; /* file ptr to line numbers */
84	char s_nreloc[2]; /* number of relocation entries */
85	char s_nlnno[2]; /* number of line number entries*/
86	char s_flags[4]; /* flags */
87	};
88
89	/*
90	* names of "special" sections
91	*/
92	#define _TEXT ".text"
93	#define _DATA ".data"
94	#define _BSS ".bss"
95	#define _COMMENT ".comment"
96
97	#define SCNHDR struct external_scnhdr
98	#define SCNHSZ 40
99
100
101	/******************** LINE NUMBERS ********************/
102
103	/* 1 line number entry for every "breakpointable" source line in a section.
104	* Line numbers are grouped on a per function basis; first entry in a function
105	* grouping will have l_lnno = 0 and in place of physical address will be the
106	* symbol table index of the function name.
107	*/
108	struct external_lineno {
109	union {
110	char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
111	char l_paddr[4]; /* (physical) address of line number */
112	} l_addr;
113	char l_lnno[2]; /* line number */
114	};
115
116
117	#define LINENO struct external_lineno
118	#define LINESZ 8
119
120
121	/******************** SYMBOLS ********************/
122
123	#define E_SYMNMLEN 8 /* # characters in a symbol name */
124	#define E_FILNMLEN 14 /* # characters in a file name */
125	#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
126
127	struct external_syment
128	{
129	union {
130	char e_name[E_SYMNMLEN];
131	struct {
132	char e_zeroes[4];
133	char e_offset[4];
134	} e;
135	} e;
136	char e_value[4];
137	char e_scnum[2];
138	char e_type[2];
139	char e_sclass[1];
140	char e_numaux[1];
141	};
142
143
144
145	#define N_BTMASK (017)
146	#define N_TMASK (060)
147	#define N_BTSHFT (4)
148	#define N_TSHIFT (2)
149
150
151	union external_auxent {
152	struct {
153	char x_tagndx[4]; /* str, un, or enum tag indx */
154	union {
155	struct {
156	char x_lnno[2]; /* declaration line number */
157	char x_size[2]; /* str/union/array size */
158	} x_lnsz;
159	char x_fsize[4]; /* size of function */
160	} x_misc;
161	union {
162	struct { /* if ISFCN, tag, or .bb */
163	char x_lnnoptr[4]; /* ptr to fcn line # */
164	char x_endndx[4]; /* entry ndx past block end */
165	} x_fcn;
166	struct { /* if ISARY, up to 4 dimen. */
167	char x_dimen[E_DIMNUM][2];
168	} x_ary;
169	} x_fcnary;
170	char x_tvndx[2]; /* tv index */
171	} x_sym;
172
173	union {
174	char x_fname[E_FILNMLEN];
175	struct {
176	char x_zeroes[4];
177	char x_offset[4];
178	} x_n;
179	} x_file;
180
181	struct {
182	char x_scnlen[4]; /* section length */
183	char x_nreloc[2]; /* # relocation entries */
184	char x_nlinno[2]; /* # line numbers */
185	} x_scn;
186
187	struct {
188	char x_tvfill[4]; /* tv fill value */
189	char x_tvlen[2]; /* length of .tv */
190	char x_tvran[2][2]; /* tv range */
191	} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
192
193
194	};
195
196	#define SYMENT struct external_syment
197	#define SYMESZ 18
198	#define AUXENT union external_auxent
199	#define AUXESZ 18
200
201
202
203	/******************** RELOCATION DIRECTIVES ********************/
204
205
206	struct external_reloc {
207	char r_vaddr[4];
208	char r_symndx[4];
209	char r_type[2];
210	#ifdef M68K_COFF_OFFSET
211	char r_offset[4];
212	#endif
213
214	};
215
216
217	#define RELOC struct external_reloc
218
219	#ifdef M68K_COFF_OFFSET
220	#define RELSZ 14
221	#else
222	#define RELSZ 10
223	#endif
224
225	#endif /* GNU_COFF_M68K_H */