1 /*** coff information for 80960. Origins: Intel corp, natch. */
3 /* This include file is also used for rudimentary ECOFF support on MIPS
4 machines. Such differences as are needed are #ifdef MIPS. */
6 /* NOTE: Tagentries (cf TAGBITS) are not used by the 960 */
8 /********************** FILE HEADER **********************/
10 struct external_filehdr {
11 char f_magic[2]; /* magic number */
12 char f_nscns[2]; /* number of sections */
13 char f_timdat[4]; /* time & date stamp */
14 char f_symptr[4]; /* file pointer to symtab */
15 char f_nsyms[4]; /* number of symtab entries */
16 char f_opthdr[2]; /* sizeof(optional hdr) */
17 char f_flags[2]; /* flags */
20 #define OMAGIC (0407) /* old impure format. data immediately
21 follows text. both sections are rw. */
22 #define NMAGIC (0410) /* split i&d, read-only text */
25 * Intel 80960 (I960) processor flags.
26 * F_I960TYPE == mask for processor type field.
29 #define F_I960TYPE (0xf000)
30 #define F_I960CORE (0x1000)
31 #define F_I960KB (0x2000)
32 #define F_I960SB (0x2000)
33 #define F_I960MC (0x3000)
34 #define F_I960XA (0x4000)
35 #define F_I960CA (0x5000)
36 #define F_I960KA (0x6000)
37 #define F_I960SA (0x6000)
40 /** i80960 Magic Numbers
43 #define I960ROMAGIC (0x160) /* read-only text segments */
44 #define I960RWMAGIC (0x161) /* read-write text segments */
46 #define I960BADMAG(x) (((x).f_magic!=I960ROMAGIC) && ((x).f_magic!=I960RWMAGIC))
48 #define FILHDR struct external_filehdr
51 /********************** AOUT "OPTIONAL HEADER" **********************/
54 unsigned long phys_addr;
55 unsigned long bitarray;
62 char magic[2]; /* type of file */
63 char vstamp[2]; /* version stamp */
64 char tsize[4]; /* text size in bytes, padded to FW bdry*/
65 char dsize[4]; /* initialized data " " */
66 char bsize[4]; /* uninitialized data " " */
67 char entry[4]; /* entry pt. */
68 char text_start[4]; /* base of text used for this file */
69 char data_start[4]; /* base of data used for this file */
70 char tagentries[4]; /* number of tag entries to follow */
74 /* return a pointer to the tag bits array */
76 #define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1))
78 /* compute size of a header */
80 /*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/
81 #define AOUTSZ (sizeof(AOUTHDR))
85 /********************** SECTION HEADER **********************/
88 struct external_scnhdr {
89 char s_name[8]; /* section name */
90 char s_paddr[4]; /* physical address, aliased s_nlib */
91 char s_vaddr[4]; /* virtual address */
92 char s_size[4]; /* section size */
93 char s_scnptr[4]; /* file ptr to raw data for section */
94 char s_relptr[4]; /* file ptr to relocation */
95 char s_lnnoptr[4]; /* file ptr to line numbers */
96 char s_nreloc[2]; /* number of relocation entries */
97 char s_nlnno[2]; /* number of line number entries*/
98 char s_flags[4]; /* flags */
99 char s_align[4]; /* section alignment */
103 #define SCNHDR struct external_scnhdr
104 #define SCNHSZ sizeof(SCNHDR)
107 /********************** LINE NUMBERS **********************/
109 /* 1 line number entry for every "breakpointable" source line in a section.
110 * Line numbers are grouped on a per function basis; first entry in a function
111 * grouping will have l_lnno = 0 and in place of physical address will be the
112 * symbol table index of the function name.
114 struct external_lineno {
116 char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
117 char l_paddr[4]; /* (physical) address of line number */
119 char l_lnno[2]; /* line number */
120 char padding[2]; /* force alignment */
124 #define LINENO struct external_lineno
128 /********************** SYMBOLS **********************/
130 #define SYMNMLEN 8 /* # characters in a symbol name */
131 #define FILNMLEN 14 /* # characters in a file name */
132 #define DIMNUM 4 /* # array dimensions in auxiliary entry */
134 struct external_syment
137 char e_name[SYMNMLEN];
155 #define N_BTMASK (0x1f)
156 #define N_TMASK (0x60)
160 union external_auxent {
162 char x_tagndx[4]; /* str, un, or enum tag indx */
165 char x_lnno[2]; /* declaration line number */
166 char x_size[2]; /* str/union/array size */
168 char x_fsize[4]; /* size of function */
171 struct { /* if ISFCN, tag, or .bb */
172 char x_lnnoptr[4]; /* ptr to fcn line # */
173 char x_endndx[4]; /* entry ndx past block end */
175 struct { /* if ISARY, up to 4 dimen. */
176 char x_dimen[DIMNUM][2];
179 char x_tvndx[2]; /* tv index */
183 char x_fname[FILNMLEN];
191 char x_scnlen[4]; /* section length */
192 char x_nreloc[2]; /* # relocation entries */
193 char x_nlinno[2]; /* # line numbers */
197 char x_tvfill[4]; /* tv fill value */
198 char x_tvlen[2]; /* length of .tv */
199 char x_tvran[2][2]; /* tv range */
200 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
202 /******************************************
203 * I960-specific *2nd* aux. entry formats
204 ******************************************/
206 /* This is a very old typo that keeps getting propagated. */
207 #define x_stdindx x_stindx
208 char x_stindx[4]; /* sys. table entry */
209 } x_sc; /* system call entry */
212 char x_balntry[4]; /* BAL entry point */
213 } x_bal; /* BAL-callable function */
216 char x_timestamp[4]; /* time stamp */
217 char x_idstring[20]; /* producer identity string */
218 } x_ident; /* Producer ident info */
224 #define SYMENT struct external_syment
225 #define SYMESZ sizeof(SYMENT) /* FIXME - calc by hand */
226 #define AUXENT union external_auxent
227 #define AUXESZ sizeof(AUXENT) /* FIXME - calc by hand */
229 # define _ETEXT "_etext"
231 /********************** RELOCATION DIRECTIVES **********************/
233 struct external_reloc {
241 /* Relevent values for r_type and i960. Would someone please document them */
244 #define RELOC struct external_reloc
247 #define DEFAULT_DATA_SECTION_ALIGNMENT 4
248 #define DEFAULT_BSS_SECTION_ALIGNMENT 4
249 #define DEFAULT_TEXT_SECTION_ALIGNMENT 16
250 /* For new sections we havn't heard of before */
251 #define DEFAULT_SECTION_ALIGNMENT 4