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)
35 #define F_I960JX (0x7000)
36 #define F_I960HX (0x8000)
39 /** i80960 Magic Numbers
42 #define I960ROMAGIC (0x160) /* read-only text segments */
43 #define I960RWMAGIC (0x161) /* read-write text segments */
45 #define I960BADMAG(x) (((x).f_magic!=I960ROMAGIC) && ((x).f_magic!=I960RWMAGIC))
47 #define FILHDR struct external_filehdr
50 /********************** AOUT "OPTIONAL HEADER" **********************/
53 unsigned long phys_addr
;
54 unsigned long bitarray
;
61 char magic
[2]; /* type of file */
62 char vstamp
[2]; /* version stamp */
63 char tsize
[4]; /* text size in bytes, padded to FW bdry*/
64 char dsize
[4]; /* initialized data " " */
65 char bsize
[4]; /* uninitialized data " " */
66 char entry
[4]; /* entry pt. */
67 char text_start
[4]; /* base of text used for this file */
68 char data_start
[4]; /* base of data used for this file */
69 char tagentries
[4]; /* number of tag entries to follow */
73 /* return a pointer to the tag bits array */
75 #define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1))
77 /* compute size of a header */
79 /*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/
84 /********************** SECTION HEADER **********************/
87 struct external_scnhdr
{
88 char s_name
[8]; /* section name */
89 char s_paddr
[4]; /* physical address, aliased s_nlib */
90 char s_vaddr
[4]; /* virtual address */
91 char s_size
[4]; /* section size */
92 char s_scnptr
[4]; /* file ptr to raw data for section */
93 char s_relptr
[4]; /* file ptr to relocation */
94 char s_lnnoptr
[4]; /* file ptr to line numbers */
95 char s_nreloc
[2]; /* number of relocation entries */
96 char s_nlnno
[2]; /* number of line number entries*/
97 char s_flags
[4]; /* flags */
98 char s_align
[4]; /* section alignment */
102 #define SCNHDR struct external_scnhdr
106 * names of "special" sections
108 #define _TEXT ".text"
109 #define _DATA ".data"
112 /********************** LINE NUMBERS **********************/
114 /* 1 line number entry for every "breakpointable" source line in a section.
115 * Line numbers are grouped on a per function basis; first entry in a function
116 * grouping will have l_lnno = 0 and in place of physical address will be the
117 * symbol table index of the function name.
119 struct external_lineno
{
121 char l_symndx
[4]; /* function name symbol index, iff l_lnno == 0*/
122 char l_paddr
[4]; /* (physical) address of line number */
124 char l_lnno
[2]; /* line number */
125 char padding
[2]; /* force alignment */
129 #define LINENO struct external_lineno
133 /********************** SYMBOLS **********************/
135 #define E_SYMNMLEN 8 /* # characters in a symbol name */
136 #define E_FILNMLEN 14 /* # characters in a file name */
137 #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
139 struct external_syment
142 char e_name
[E_SYMNMLEN
];
160 #define N_BTMASK (0x1f)
161 #define N_TMASK (0x60)
165 union external_auxent
{
167 char x_tagndx
[4]; /* str, un, or enum tag indx */
170 char x_lnno
[2]; /* declaration line number */
171 char x_size
[2]; /* str/union/array size */
173 char x_fsize
[4]; /* size of function */
176 struct { /* if ISFCN, tag, or .bb */
177 char x_lnnoptr
[4]; /* ptr to fcn line # */
178 char x_endndx
[4]; /* entry ndx past block end */
180 struct { /* if ISARY, up to 4 dimen. */
181 char x_dimen
[E_DIMNUM
][2];
184 char x_tvndx
[2]; /* tv index */
188 char x_fname
[E_FILNMLEN
];
196 char x_scnlen
[4]; /* section length */
197 char x_nreloc
[2]; /* # relocation entries */
198 char x_nlinno
[2]; /* # line numbers */
202 char x_tvfill
[4]; /* tv fill value */
203 char x_tvlen
[2]; /* length of .tv */
204 char x_tvran
[2][2]; /* tv range */
205 } x_tv
; /* info about .tv section (in auxent of symbol .tv)) */
207 /******************************************
208 * I960-specific *2nd* aux. entry formats
209 ******************************************/
211 /* This is a very old typo that keeps getting propagated. */
212 #define x_stdindx x_stindx
213 char x_stindx
[4]; /* sys. table entry */
214 } x_sc
; /* system call entry */
217 char x_balntry
[4]; /* BAL entry point */
218 } x_bal
; /* BAL-callable function */
221 char x_timestamp
[4]; /* time stamp */
222 char x_idstring
[20]; /* producer identity string */
223 } x_ident
; /* Producer ident info */
229 #define SYMENT struct external_syment
231 #define AUXENT union external_auxent
234 # define _ETEXT "_etext"
236 /********************** RELOCATION DIRECTIVES **********************/
238 struct external_reloc
{
245 /* r_type values for the i960. */
247 /* The i960 uses R_RELLONG, which is defined in internal.h as 0x11.
248 It is an absolute 32 bit relocation. */
250 #define R_IPRMED (0x19) /* 24-bit ip-relative relocation */
251 #define R_OPTCALL (0x1b) /* 32-bit optimizable call (leafproc/sysproc) */
252 #define R_OPTCALLX (0x1c) /* 64-bit optimizable call (leafproc/sysproc) */
254 #define RELOC struct external_reloc
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