1 /*** coff information for 88k bcs */
3 /********************** FILE HEADER **********************/
4 struct external_filehdr {
5 char f_magic[2]; /* magic number */
6 char f_nscns[2]; /* number of sections */
7 char f_timdat[4]; /* time & date stamp */
8 char f_symptr[4]; /* file pointer to symtab */
9 char f_nsyms[4]; /* number of symtab entries */
10 char f_opthdr[2]; /* sizeof(optional hdr) */
11 char f_flags[2]; /* flags */
14 #define MC88MAGIC 0540 /* 88k BCS executable */
15 #define MC88DMAGIC 0541 /* DG/UX executable */
16 #define MC88OMAGIC 0555 /* Object file */
18 #define MC88BADMAG(x) (((x).f_magic!=MC88MAGIC) &&((x).f_magic!=MC88DMAGIC) && ((x).f_magic != MC88OMAGIC))
20 #define FILHDR struct external_filehdr
21 #define FILHSZ sizeof(FILHDR)
24 /********************** AOUT "OPTIONAL HEADER" **********************/
27 #define PAGEMAGIC3 0414 /* Split i&d, zero mapped */
28 #define PAGEMAGICBCS 0413
33 char magic[2]; /* type of file */
34 char vstamp[2]; /* version stamp */
35 char tsize[4]; /* text size in bytes, padded to FW bdry*/
36 char dsize[4]; /* initialized data " " */
37 char bsize[4]; /* uninitialized data " " */
38 char entry[4]; /* entry pt. */
39 char text_start[4]; /* base of text used for this file */
40 char data_start[4]; /* base of data used for this file */
45 /* compute size of a header */
47 #define AOUTSZ (sizeof(AOUTHDR))
50 /********************** SECTION HEADER **********************/
53 struct external_scnhdr
55 char s_name[8]; /* section name */
56 char s_paddr[4]; /* physical address, aliased s_nlib */
57 char s_vaddr[4]; /* virtual address */
58 char s_size[4]; /* section size */
59 char s_scnptr[4]; /* file ptr to raw data for section */
60 char s_relptr[4]; /* file ptr to relocation */
61 char s_lnnoptr[4]; /* file ptr to line numbers */
62 char s_nreloc[4]; /* number of relocation entries */
63 char s_nlnno[4]; /* number of line number entries*/
64 char s_flags[4]; /* flags */
68 #define SCNHDR struct external_scnhdr
69 #define SCNHSZ sizeof(SCNHDR)
72 * names of "special" sections
77 #define _COMMENT ".comment"
79 /********************** LINE NUMBERS **********************/
81 /* 1 line number entry for every "breakpointable" source line in a section.
82 * Line numbers are grouped on a per function basis; first entry in a function
83 * grouping will have l_lnno = 0 and in place of physical address will be the
84 * symbol table index of the function name.
86 struct external_lineno{
88 char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
89 char l_paddr[4]; /* (physical) address of line number */
96 #define LINENO struct external_lineno
100 /********************** SYMBOLS **********************/
102 #define E_SYMNMLEN 8 /* # characters in a symbol name */
103 #define E_FILNMLEN 14 /* # characters in a file name */
104 #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
106 struct external_syment
109 char e_name[E_SYMNMLEN];
132 /* Note that this isn't the same shape as other coffs */
133 union external_auxent {
135 char x_tagndx[4]; /* str, un, or enum tag indx */
138 char x_fsize[4]; /* size of function */
140 char x_lnno[4]; /* declaration line number */
141 char x_size[4]; /* str/union/array size */
147 struct { /* if ISFCN, tag, or .bb */
148 char x_lnnoptr[4]; /* ptr to fcn line # */
149 char x_endndx[4]; /* entry ndx past block end */
151 struct { /* if ISARY, up to 4 dimen. */
152 char x_dimen[E_DIMNUM][2];
160 char x_fname[E_FILNMLEN];
168 char x_scnlen[4]; /* section length */
169 char x_nreloc[4]; /* # relocation entries */
170 char x_nlinno[4]; /* # line numbers */
174 char x_tvfill[4]; /* tv fill value */
175 char x_tvlen[2]; /* length of .tv */
176 char x_tvran[2][2]; /* tv range */
177 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
181 #define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *)ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
182 #define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
183 #define PUT_FCN_LNNOPTR(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
184 #define PUT_FCN_ENDNDX(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
185 #define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
186 #define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
187 #define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
188 #define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
189 #define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen)
190 #define GET_SCN_NRELOC(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nreloc)
191 #define GET_SCN_NLINNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nlinno)
192 #define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen)
193 #define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc)
194 #define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_32(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno)
195 #define GET_LINENO_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno))
196 #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32(abfd,val, (bfd_byte *) (ext->l_lnno));
200 #define SYMENT struct external_syment
202 #define AUXENT union external_auxent
206 /********************** RELOCATION DIRECTIVES **********************/
208 struct external_reloc {
215 #define RELOC struct external_reloc