1 /*** coff information for 80960. Origins: Intel corp, natch. */
3 /* NOTE: Tagentries (cf TAGBITS) are no longer used by the 960 */
5 /********************** FILE HEADER **********************/
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 */
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 */
22 * Intel 80960 (I960) processor flags.
23 * F_I960TYPE == mask for processor type field.
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)
37 /** i80960 Magic Numbers
40 #define I960ROMAGIC (0x160) /* read-only text segments */
41 #define I960RWMAGIC (0x161) /* read-write text segments */
43 #define I960BADMAG(x) (((x).f_magic!=I960ROMAGIC) && ((x).f_magic!=I960RWMAGIC))
45 #define FILHDR struct external_filehdr
48 /********************** AOUT "OPTIONAL HEADER" **********************/
51 unsigned long phys_addr
;
52 unsigned long bitarray
;
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 */
67 char tagentries
[4]; /* number of tag entries to follow */
71 /* return a pointer to the tag bits array */
73 #define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1))
75 /* compute size of a header */
77 /*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/
78 #define AOUTSZ (sizeof(AOUTHDR))
82 /********************** SECTION HEADER **********************/
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 */
96 char s_align
[4]; /* section alignment */
100 #define SCNHDR struct external_scnhdr
101 #define SCNHSZ sizeof(SCNHDR)
104 * names of "special" sections
106 #define _TEXT ".text"
107 #define _DATA ".data"
110 /********************** LINE NUMBERS **********************/
112 /* 1 line number entry for every "breakpointable" source line in a section.
113 * Line numbers are grouped on a per function basis; first entry in a function
114 * grouping will have l_lnno = 0 and in place of physical address will be the
115 * symbol table index of the function name.
117 struct external_lineno
{
119 char l_symndx
[4]; /* function name symbol index, iff l_lnno == 0*/
120 char l_paddr
[4]; /* (physical) address of line number */
122 char l_lnno
[2]; /* line number */
123 char padding
[2]; /* force alignment */
127 #define LINENO struct external_lineno
131 /********************** SYMBOLS **********************/
133 #define E_SYMNMLEN 8 /* # characters in a symbol name */
134 #define E_FILNMLEN 14 /* # characters in a file name */
135 #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
137 struct external_syment
140 char e_name
[E_SYMNMLEN
];
158 #define N_BTMASK (0x1f)
159 #define N_TMASK (0x60)
163 union external_auxent
{
165 char x_tagndx
[4]; /* str, un, or enum tag indx */
168 char x_lnno
[2]; /* declaration line number */
169 char x_size
[2]; /* str/union/array size */
171 char x_fsize
[4]; /* size of function */
174 struct { /* if ISFCN, tag, or .bb */
175 char x_lnnoptr
[4]; /* ptr to fcn line # */
176 char x_endndx
[4]; /* entry ndx past block end */
178 struct { /* if ISARY, up to 4 dimen. */
179 char x_dimen
[E_DIMNUM
][2];
182 char x_tvndx
[2]; /* tv index */
186 char x_fname
[E_FILNMLEN
];
194 char x_scnlen
[4]; /* section length */
195 char x_nreloc
[2]; /* # relocation entries */
196 char x_nlinno
[2]; /* # line numbers */
200 char x_tvfill
[4]; /* tv fill value */
201 char x_tvlen
[2]; /* length of .tv */
202 char x_tvran
[2][2]; /* tv range */
203 } x_tv
; /* info about .tv section (in auxent of symbol .tv)) */
205 /******************************************
206 * I960-specific *2nd* aux. entry formats
207 ******************************************/
209 /* This is a very old typo that keeps getting propagated. */
210 #define x_stdindx x_stindx
211 char x_stindx
[4]; /* sys. table entry */
212 } x_sc
; /* system call entry */
215 char x_balntry
[4]; /* BAL entry point */
216 } x_bal
; /* BAL-callable function */
219 char x_timestamp
[4]; /* time stamp */
220 char x_idstring
[20]; /* producer identity string */
221 } x_ident
; /* Producer ident info */
227 #define SYMENT struct external_syment
228 #define SYMESZ sizeof(SYMENT) /* FIXME - calc by hand */
229 #define AUXENT union external_auxent
230 #define AUXESZ sizeof(AUXENT) /* FIXME - calc by hand */
232 # define _ETEXT "_etext"
234 /********************** RELOCATION DIRECTIVES **********************/
236 struct external_reloc
{
244 /* Relevent values for r_type and i960. Would someone please document them */
247 #define RELOC struct external_reloc
250 #define DEFAULT_DATA_SECTION_ALIGNMENT 4
251 #define DEFAULT_BSS_SECTION_ALIGNMENT 4
252 #define DEFAULT_TEXT_SECTION_ALIGNMENT 16
253 /* For new sections we havn't heard of before */
254 #define DEFAULT_SECTION_ALIGNMENT 4
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