Commit | Line | Data |
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0f268757 SC |
1 | /* Support for Intel 960 COFF and Motorola 88k BCS COFF (and maybe others) */ |
2 | ||
3 | /* Copyright (C) 1990, 1991 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of BFD, the Binary File Diddler. | |
6 | ||
7 | BFD is free software; you can redistribute it and/or modify it under the | |
8 | terms of the GNU General Public License as published by the Free Software | |
9 | Foundation; either version 1, or (at your option) any later version. | |
10 | ||
11 | BFD is distributed in the hope that it will be useful, but WITHOUT ANY | |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
13 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for more | |
14 | details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License along with | |
17 | BFD; see the file COPYING. If not, write to the Free Software Foundation, | |
18 | 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
21 | /* $Id$ */ | |
22 | /* Most of this hacked by Steve Chamberlain, steve@cygnus.com */ | |
23 | ||
24 | #include "archures.h" /* Machine architectures and types */ | |
25 | ||
26 | /* SUPPRESS 558 */ | |
27 | /* SUPPRESS 590 */ | |
28 | /* SUPPRESS 529 */ | |
29 | /* SUPPRESS 530 */ | |
30 | ||
31 | /* Align an address upward to a boundary, expressed as a number of bytes. | |
32 | E.g. align to an 8-byte boundary with argument of 8. */ | |
33 | #define ALIGN(this, boundary) \ | |
34 | ((( (this) + ((boundary) -1)) & (~((boundary)-1)))) | |
35 | ||
36 | /* Align an address upward to a power of two. Argument is the power | |
37 | of two, e.g. 8-byte alignment uses argument of 3 (8 == 2^3). */ | |
38 | #define i960_align(addr, align) \ | |
39 | ( ((addr) + ((1<<(align))-1)) & (-1 << (align))) | |
40 | ||
41 | #define sp(x) bfd_h_put_x(abfd, x, &x) | |
42 | ||
43 | #define PUTWORD bfd_h_put_32 | |
44 | #define PUTHALF bfd_h_put_16 | |
45 | #ifndef I960 | |
46 | #define GDB_EXPORT static | |
47 | #else | |
48 | #define GDB_EXPORT /* nothing */ | |
49 | #endif | |
50 | ||
51 | PROTO(static void,force_indices_file_symbol_relative,(bfd *abfd, | |
52 | struct internal_syment *symtab)); | |
53 | ||
54 | \f | |
55 | /* void warning(); */ | |
56 | extern asection abs_section; | |
57 | ||
58 | static int | |
59 | DEFUN(get_index,(symbol), | |
60 | asymbol *symbol) | |
61 | { | |
62 | return (int) symbol->value; | |
63 | } | |
64 | ||
65 | static void | |
66 | DEFUN(set_index,(symbol, idx), | |
67 | asymbol *symbol AND | |
68 | unsigned int idx) | |
69 | { | |
70 | symbol->value = idx; | |
71 | } | |
72 | ||
73 | ||
74 | ||
75 | ||
76 | ||
77 | /* All the swapping routines: | |
78 | */ | |
79 | ||
80 | ||
81 | GDB_EXPORT | |
82 | void | |
83 | DEFUN(bfd_swap_reloc_in,(abfd, reloc_src, reloc_dst), | |
84 | bfd *abfd AND | |
85 | RELOC *reloc_src AND | |
86 | struct internal_reloc *reloc_dst) | |
87 | { | |
88 | reloc_dst->r_vaddr = bfd_h_get_32(abfd, reloc_src->r_vaddr); | |
89 | reloc_dst->r_symndx = bfd_h_get_32(abfd, reloc_src->r_symndx); | |
90 | reloc_dst->r_type = bfd_h_get_16(abfd, reloc_src->r_type); | |
91 | #if M88 | |
92 | reloc_dst->r_offset = bfd_h_get_16(abfd, reloc_src->r_offset); | |
93 | #endif | |
94 | } | |
95 | ||
96 | GDB_EXPORT | |
97 | void | |
98 | DEFUN(bfd_swap_reloc_out,(abfd, reloc_src, reloc_dst), | |
99 | bfd *abfd AND | |
100 | struct internal_reloc *reloc_src AND | |
101 | struct external_reloc *reloc_dst) | |
102 | { | |
103 | bfd_h_put_32(abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr); | |
104 | bfd_h_put_32(abfd, reloc_src->r_symndx, reloc_dst->r_symndx); | |
105 | bfd_h_put_16(abfd, reloc_src->r_type, reloc_dst->r_type); | |
106 | #if M88 | |
107 | bfd_h_put_16(abfd, reloc_src->r_offset, reloc_dst->r_offset); | |
108 | #endif | |
109 | ||
110 | } | |
111 | ||
112 | GDB_EXPORT void | |
113 | DEFUN(bfd_swap_filehdr_in,(abfd, filehdr_src, filehdr_dst), | |
114 | bfd *abfd AND | |
115 | FILHDR *filehdr_src AND | |
116 | struct internal_filehdr *filehdr_dst) | |
117 | { | |
118 | filehdr_dst->f_magic = bfd_h_get_16(abfd, filehdr_src->f_magic); | |
119 | filehdr_dst->f_nscns = bfd_h_get_16(abfd,filehdr_src-> f_nscns); | |
120 | filehdr_dst->f_timdat = bfd_h_get_32(abfd,filehdr_src-> f_timdat); | |
121 | filehdr_dst->f_symptr = bfd_h_get_32(abfd,filehdr_src-> f_symptr); | |
122 | filehdr_dst->f_nsyms = bfd_h_get_32(abfd,filehdr_src-> f_nsyms); | |
123 | filehdr_dst->f_opthdr = bfd_h_get_16(abfd,filehdr_src-> f_opthdr); | |
124 | filehdr_dst->f_flags = bfd_h_get_16(abfd,filehdr_src-> f_flags); | |
125 | } | |
126 | ||
127 | GDB_EXPORT void | |
128 | DEFUN(bfd_swap_filehdr_out,(abfd, filehdr_in, filehdr_out), | |
129 | bfd *abfd AND | |
130 | struct internal_filehdr *filehdr_in AND | |
131 | FILHDR *filehdr_out) | |
132 | { | |
133 | bfd_h_put_16(abfd, filehdr_in->f_magic, filehdr_out->f_magic); | |
134 | bfd_h_put_16(abfd, filehdr_in->f_nscns, filehdr_out->f_nscns); | |
135 | bfd_h_put_32(abfd, filehdr_in->f_timdat, filehdr_out->f_timdat); | |
136 | bfd_h_put_32(abfd, filehdr_in->f_symptr, filehdr_out->f_symptr); | |
137 | bfd_h_put_32(abfd, filehdr_in->f_nsyms, filehdr_out->f_nsyms); | |
138 | bfd_h_put_16(abfd, filehdr_in->f_opthdr, filehdr_out->f_opthdr); | |
139 | bfd_h_put_16(abfd, filehdr_in->f_flags, filehdr_out->f_flags); | |
140 | } | |
141 | ||
142 | ||
143 | GDB_EXPORT | |
144 | void | |
145 | DEFUN(bfd_coff_swap_sym_in,(abfd, ext, in), | |
146 | bfd *abfd AND | |
147 | SYMENT *ext AND | |
148 | struct internal_syment *in) | |
149 | { | |
150 | if( ext->e.e_name[0] == 0) { | |
151 | in->_n._n_n._n_zeroes = 0; | |
152 | in->_n._n_n._n_offset = bfd_h_get_32(abfd, ext->e.e.e_offset); | |
153 | } | |
154 | else { | |
155 | memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN); | |
156 | } | |
157 | in->n_value = bfd_h_get_32(abfd, ext->e_value); | |
158 | in->n_scnum = bfd_h_get_16(abfd, ext->e_scnum); | |
159 | if (sizeof(ext->e_type) == 2){ | |
160 | in->n_type = bfd_h_get_16(abfd, ext->e_type); | |
161 | } | |
162 | else { | |
163 | in->n_type = bfd_h_get_32(abfd, ext->e_type); | |
164 | } | |
165 | in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass); | |
166 | in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux); | |
167 | } | |
168 | ||
169 | GDB_EXPORT void | |
170 | DEFUN(bfd_coff_swap_sym_out,(abfd,in, ext), | |
171 | bfd *abfd AND | |
172 | struct internal_syment *in AND | |
173 | SYMENT *ext) | |
174 | { | |
175 | if(in->_n._n_name[0] == 0) { | |
176 | bfd_h_put_32(abfd, 0, ext->e.e.e_zeroes); | |
177 | bfd_h_put_32(abfd, in->_n._n_n._n_offset, ext->e.e.e_offset); | |
178 | } | |
179 | else { | |
180 | memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN); | |
181 | } | |
182 | bfd_h_put_32(abfd, in->n_value , ext->e_value); | |
183 | bfd_h_put_16(abfd, in->n_scnum , ext->e_scnum); | |
184 | if (sizeof(ext->e_type) == 2) | |
185 | { | |
186 | bfd_h_put_16(abfd, in->n_type , ext->e_type); | |
187 | } | |
188 | else | |
189 | { | |
190 | bfd_h_put_32(abfd, in->n_type , ext->e_type); | |
191 | } | |
192 | bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass); | |
193 | bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux); | |
194 | } | |
195 | ||
196 | GDB_EXPORT void | |
197 | DEFUN(bfd_coff_swap_aux_in,(abfd, ext, type, class, in), | |
198 | bfd *abfd AND | |
199 | AUXENT *ext AND | |
200 | int type AND | |
201 | int class AND | |
202 | union internal_auxent *in) | |
203 | { | |
204 | switch (class) { | |
205 | case C_FILE: | |
206 | if (ext->x_file.x_fname[0] == 0) { | |
207 | in->x_file.x_n.x_zeroes = 0; | |
208 | in->x_file.x_n.x_offset = bfd_h_get_32(abfd, ext->x_file.x_n.x_offset); | |
209 | } | |
210 | ||
211 | break; | |
212 | case C_STAT: | |
213 | #ifdef C_LEAFSTAT | |
214 | case C_LEAFSTAT: | |
215 | #endif | |
216 | case C_HIDDEN: | |
217 | if (type == T_NULL) { | |
218 | in->x_scn.x_scnlen = bfd_h_get_32(abfd, ext->x_scn.x_scnlen); | |
219 | in->x_scn.x_nreloc = bfd_h_get_16(abfd, ext->x_scn.x_nreloc); | |
220 | in->x_scn.x_nlinno = bfd_h_get_16(abfd, ext->x_scn.x_nlinno); | |
221 | break; | |
222 | } | |
223 | default: | |
224 | in->x_sym.x_tagndx = bfd_h_get_32(abfd, ext->x_sym.x_tagndx); | |
225 | in->x_sym.x_tvndx = bfd_h_get_16(abfd, ext->x_sym.x_tvndx); | |
226 | ||
227 | if (ISARY(type) || class == C_BLOCK) { | |
228 | in->x_sym.x_fcnary.x_ary.x_dimen[0] = bfd_h_get_16(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[0]); | |
229 | in->x_sym.x_fcnary.x_ary.x_dimen[1] = bfd_h_get_16(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[1]); | |
230 | in->x_sym.x_fcnary.x_ary.x_dimen[2] = bfd_h_get_16(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[2]); | |
231 | in->x_sym.x_fcnary.x_ary.x_dimen[3] = bfd_h_get_16(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[3]); | |
232 | } | |
233 | else { | |
234 | in->x_sym.x_fcnary.x_fcn.x_lnnoptr = bfd_h_get_32(abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr); | |
235 | in->x_sym.x_fcnary.x_fcn.x_endndx = bfd_h_get_32(abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx); | |
236 | } | |
237 | if (ISFCN(type)) { | |
238 | in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, ext->x_sym.x_misc.x_fsize); | |
239 | } | |
240 | else { | |
241 | in->x_sym.x_misc.x_lnsz.x_lnno = bfd_h_get_16(abfd, ext->x_sym.x_misc.x_lnsz.x_lnno); | |
242 | in->x_sym.x_misc.x_lnsz.x_size = bfd_h_get_16(abfd, ext->x_sym.x_misc.x_lnsz.x_size); | |
243 | } | |
244 | } | |
245 | } | |
246 | ||
247 | GDB_EXPORT void | |
248 | DEFUN(bfd_coff_swap_aux_out,(abfd, in, type, class, ext), | |
249 | bfd *abfd AND | |
250 | union internal_auxent *in AND | |
251 | int type AND | |
252 | int class AND | |
253 | AUXENT *ext) | |
254 | { | |
255 | switch (class) { | |
256 | case C_FILE: | |
257 | if (in->x_file.x_fname[0] == 0) { | |
258 | PUTWORD(abfd, 0, ext->x_file.x_n.x_zeroes ); | |
259 | PUTWORD(abfd, in->x_file.x_n.x_offset, ext->x_file.x_n.x_offset); | |
260 | } | |
261 | ||
262 | break; | |
263 | case C_STAT: | |
264 | #ifdef C_LEAFSTAT | |
265 | case C_LEAFSTAT: | |
266 | #endif | |
267 | case C_HIDDEN: | |
268 | if (type == T_NULL) { | |
269 | PUTWORD(abfd, in->x_scn.x_scnlen, ext->x_scn.x_scnlen); | |
270 | PUTWORD(abfd, in->x_scn.x_nreloc, ext->x_scn.x_nreloc); | |
271 | PUTWORD(abfd, in->x_scn.x_nlinno, ext->x_scn.x_nlinno); | |
272 | break; | |
273 | } | |
274 | default: | |
275 | PUTWORD(abfd, in->x_sym.x_tagndx, ext->x_sym.x_tagndx); | |
276 | PUTWORD(abfd, in->x_sym.x_tvndx , ext->x_sym.x_tvndx); | |
277 | ||
278 | if (ISARY(type) || class == C_BLOCK) { | |
279 | bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0],ext->x_sym.x_fcnary.x_ary.x_dimen[0]); | |
280 | bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1],ext->x_sym.x_fcnary.x_ary.x_dimen[1]); | |
281 | bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2],ext->x_sym.x_fcnary.x_ary.x_dimen[2]); | |
282 | bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3],ext->x_sym.x_fcnary.x_ary.x_dimen[3]); | |
283 | } | |
284 | else { | |
285 | PUTWORD(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr); | |
286 | PUTWORD(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx, ext->x_sym.x_fcnary.x_fcn.x_endndx); | |
287 | } | |
288 | if (ISFCN(type)) { | |
289 | PUTWORD(abfd, in->x_sym.x_misc.x_fsize, ext->x_sym.x_misc.x_fsize); | |
290 | } | |
291 | else { | |
292 | bfd_h_put_16(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext->x_sym.x_misc.x_lnsz.x_lnno); | |
293 | bfd_h_put_16(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext->x_sym.x_misc.x_lnsz.x_size); | |
294 | } | |
295 | } | |
296 | } | |
297 | ||
298 | GDB_EXPORT void | |
299 | DEFUN(bfd_coff_swap_lineno_in,(abfd, ext, in), | |
300 | bfd *abfd AND | |
301 | LINENO *ext AND | |
302 | struct internal_lineno *in) | |
303 | { | |
304 | in->l_addr.l_symndx = bfd_h_get_32(abfd, ext->l_addr.l_symndx); | |
305 | in->l_lnno = bfd_h_get_16(abfd, ext->l_lnno); | |
306 | } | |
307 | ||
308 | GDB_EXPORT void | |
309 | DEFUN(bfd_coff_swap_lineno_out,(abfd, in, ext), | |
310 | bfd *abfd AND | |
311 | struct internal_lineno *in AND | |
312 | struct external_lineno *ext) | |
313 | { | |
314 | PUTWORD(abfd, in->l_addr.l_symndx, ext->l_addr.l_symndx); | |
315 | PUTHALF(abfd, in->l_lnno, ext->l_lnno); | |
316 | } | |
317 | ||
318 | ||
319 | ||
320 | ||
321 | GDB_EXPORT void | |
322 | DEFUN(bfd_swap_aouthdr_in,(abfd, aouthdr_ext, aouthdr_int), | |
323 | bfd *abfd AND | |
324 | AOUTHDR *aouthdr_ext AND | |
325 | struct internal_aouthdr *aouthdr_int) | |
326 | { | |
327 | aouthdr_int->magic = bfd_h_get_16(abfd, aouthdr_ext->magic); | |
328 | aouthdr_int->vstamp = bfd_h_get_16(abfd, aouthdr_ext->vstamp); | |
329 | aouthdr_int->tsize = bfd_h_get_32(abfd, aouthdr_ext->tsize); | |
330 | aouthdr_int->dsize = bfd_h_get_32(abfd, aouthdr_ext->dsize); | |
331 | aouthdr_int->bsize = bfd_h_get_32(abfd, aouthdr_ext->bsize); | |
332 | aouthdr_int->entry = bfd_h_get_32(abfd, aouthdr_ext->entry); | |
333 | aouthdr_int->text_start = bfd_h_get_32(abfd, aouthdr_ext->text_start); | |
334 | aouthdr_int->data_start = bfd_h_get_32(abfd, aouthdr_ext->data_start); | |
335 | #ifdef I960 | |
336 | aouthdr_int->tagentries = bfd_h_get_32(abfd, aouthdr_ext->tagentries); | |
337 | #endif | |
338 | } | |
339 | ||
340 | GDB_EXPORT void | |
341 | DEFUN(bfd_swap_aouthdr_out,(abfd, aouthdr_in, aouthdr_out), | |
342 | bfd *abfd AND | |
343 | struct internal_aouthdr *aouthdr_in AND | |
344 | AOUTHDR *aouthdr_out) | |
345 | { | |
346 | bfd_h_put_16(abfd, aouthdr_in->magic, aouthdr_out->magic); | |
347 | bfd_h_put_16(abfd, aouthdr_in->vstamp, aouthdr_out->vstamp); | |
348 | bfd_h_put_32(abfd, aouthdr_in->tsize, aouthdr_out->tsize); | |
349 | bfd_h_put_32(abfd, aouthdr_in->dsize, aouthdr_out->dsize); | |
350 | bfd_h_put_32(abfd, aouthdr_in->bsize, aouthdr_out->bsize); | |
351 | bfd_h_put_32(abfd, aouthdr_in->entry, aouthdr_out->entry); | |
352 | bfd_h_put_32(abfd, aouthdr_in->text_start, aouthdr_out->text_start); | |
353 | bfd_h_put_32(abfd, aouthdr_in->data_start, aouthdr_out->data_start); | |
354 | #ifdef I960 | |
355 | bfd_h_put_32(abfd, aouthdr_in->tagentries, aouthdr_out->tagentries); | |
356 | #endif | |
357 | } | |
358 | ||
359 | GDB_EXPORT void | |
360 | DEFUN(bfd_coff_swap_scnhdr_in,(abfd, scnhdr_ext, scnhdr_int), | |
361 | bfd *abfd AND | |
362 | SCNHDR *scnhdr_ext AND | |
363 | struct internal_scnhdr *scnhdr_int) | |
364 | { | |
365 | memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name)); | |
366 | scnhdr_int->s_vaddr = bfd_h_get_32(abfd, scnhdr_ext->s_vaddr); | |
367 | scnhdr_int->s_paddr = bfd_h_get_32(abfd, scnhdr_ext->s_paddr); | |
368 | scnhdr_int->s_size = bfd_h_get_32(abfd, scnhdr_ext->s_size); | |
369 | scnhdr_int->s_scnptr = bfd_h_get_32(abfd, scnhdr_ext->s_scnptr); | |
370 | scnhdr_int->s_relptr = bfd_h_get_32(abfd, scnhdr_ext->s_relptr); | |
371 | scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, scnhdr_ext->s_lnnoptr); | |
372 | scnhdr_int->s_nreloc = bfd_h_get_16(abfd, scnhdr_ext->s_nreloc); | |
373 | scnhdr_int->s_nlnno = bfd_h_get_16(abfd, scnhdr_ext->s_nlnno); | |
374 | scnhdr_int->s_flags = bfd_h_get_32(abfd, scnhdr_ext->s_flags); | |
375 | #ifdef I960 | |
376 | scnhdr_int->s_align = bfd_h_get_32(abfd, scnhdr_ext->s_align); | |
377 | #endif | |
378 | } | |
379 | ||
380 | static void | |
381 | DEFUN(swap_scnhdr_out,(abfd, scnhdr_int, scnhdr_ext), | |
382 | bfd *abfd AND | |
383 | struct internal_scnhdr *scnhdr_int AND | |
384 | SCNHDR *scnhdr_ext) | |
385 | { | |
386 | memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name)); | |
387 | PUTWORD(abfd, scnhdr_int->s_vaddr, scnhdr_ext->s_vaddr); | |
388 | PUTWORD(abfd, scnhdr_int->s_paddr, scnhdr_ext->s_paddr); | |
389 | PUTWORD(abfd, scnhdr_int->s_size, scnhdr_ext->s_size); | |
390 | PUTWORD(abfd, scnhdr_int->s_scnptr, scnhdr_ext->s_scnptr); | |
391 | PUTWORD(abfd, scnhdr_int->s_relptr, scnhdr_ext->s_relptr); | |
392 | PUTWORD(abfd, scnhdr_int->s_lnnoptr, scnhdr_ext->s_lnnoptr); | |
393 | PUTWORD(abfd, scnhdr_int->s_nreloc, scnhdr_ext->s_nreloc); | |
394 | PUTHALF(abfd, scnhdr_int->s_nlnno, scnhdr_ext->s_nlnno); | |
395 | PUTHALF(abfd, scnhdr_int->s_flags, scnhdr_ext->s_flags); | |
396 | #ifdef I960 | |
397 | PUTWORD(abfd, scnhdr_int->s_align, scnhdr_ext->s_align); | |
398 | #endif | |
399 | } | |
400 | ||
401 | /* | |
402 | initialize a section structure with information peculiar to this | |
403 | particular implementation of coff | |
404 | */ | |
405 | ||
406 | static boolean | |
407 | DEFUN(coff_new_section_hook,(abfd_ignore, section_ignore), | |
408 | bfd *abfd_ignore AND | |
409 | asection *section_ignore) | |
410 | { | |
411 | #ifdef MC88MAGIC | |
412 | /* FIXME, shouldn't this ifdef be on something that says we are | |
413 | actually COMPILING FOR an 88K coff file, rather than simply | |
414 | knowing its magic number? */ | |
415 | /* Align to at least 16 bytes */ | |
416 | section_ignore->alignment_power = 4; | |
417 | #endif | |
418 | #if M68 | |
419 | section_ignore->alignment_power = 3; | |
420 | #endif | |
421 | return true; | |
422 | } | |
423 | ||
424 | /* Take a section header read from a coff file (in HOST byte order), | |
425 | and make a BFD "section" out of it. */ | |
426 | static boolean | |
427 | DEFUN(make_a_section_from_file,(abfd, hdr), | |
428 | bfd *abfd AND | |
429 | struct internal_scnhdr *hdr) | |
430 | { | |
431 | asection *return_section; | |
432 | ||
433 | { | |
434 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ | |
435 | char *name = bfd_alloc(abfd, sizeof (hdr->s_name)+1); | |
436 | if (name == NULL) { | |
437 | bfd_error = no_memory; | |
438 | return false; | |
439 | } | |
440 | strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); | |
441 | name[sizeof (hdr->s_name)] = 0; | |
442 | ||
443 | return_section = bfd_make_section(abfd, name); | |
444 | } | |
445 | ||
446 | /* s_paddr is presumed to be = to s_vaddr */ | |
447 | #define assign(to, from) return_section->to = hdr->from | |
448 | assign(vma, s_vaddr); | |
449 | /* assign (vma, s_vaddr); */ | |
450 | assign(size, s_size); | |
451 | assign(filepos, s_scnptr); | |
452 | assign(rel_filepos, s_relptr); | |
453 | assign(reloc_count, s_nreloc); | |
454 | #ifdef I960 | |
455 | { | |
456 | /* FIXME, use a temp var rather than alignment_power */ | |
457 | assign(alignment_power, s_align); | |
458 | { | |
459 | unsigned int i; | |
460 | for (i = 0; i < 32; i++) { | |
461 | if ((1 << i) >= (int) (return_section->alignment_power)) { | |
462 | return_section->alignment_power = i; | |
463 | break; | |
464 | } | |
465 | } | |
466 | } | |
467 | } | |
468 | #endif | |
469 | assign(line_filepos, s_lnnoptr); | |
470 | /* | |
471 | return_section->linesize = hdr->s_nlnno * sizeof (struct lineno); | |
472 | */ | |
473 | ||
474 | #undef assign | |
475 | return_section->lineno_count = hdr->s_nlnno; | |
476 | return_section->userdata = NULL; | |
477 | return_section->next = (asection *) NULL; | |
478 | return_section->flags = 0; | |
479 | if ((hdr->s_flags & STYP_TEXT) || (hdr->s_flags & STYP_DATA)) | |
480 | return_section->flags = (SEC_LOAD | SEC_ALLOC); | |
481 | else if (hdr->s_flags & STYP_BSS) | |
482 | return_section->flags = SEC_ALLOC; | |
483 | ||
484 | if (hdr->s_nreloc != 0) | |
485 | return_section->flags |= SEC_RELOC; | |
486 | if (hdr->s_scnptr != 0) | |
487 | return_section->flags |= SEC_HAS_CONTENTS; | |
488 | return true; | |
489 | } | |
490 | static boolean | |
491 | DEFUN(coff_mkobject,(abfd), | |
492 | bfd *abfd) | |
493 | { | |
494 | set_tdata (abfd, bfd_zalloc (abfd,sizeof(coff_data_type))); | |
495 | if (coff_data(abfd) == 0) { | |
496 | bfd_error = no_memory; | |
497 | return false; | |
498 | } | |
499 | coff_data(abfd)->relocbase = 0; | |
500 | return true; | |
501 | } | |
502 | ||
503 | static | |
504 | bfd_target * | |
505 | DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a), | |
506 | bfd *abfd AND | |
507 | unsigned nscns AND | |
508 | struct internal_filehdr *internal_f AND | |
509 | struct internal_aouthdr *internal_a) | |
510 | { | |
511 | coff_data_type *coff; | |
512 | ||
513 | size_t readsize; /* length of file_info */ | |
514 | SCNHDR *external_sections; | |
515 | ||
516 | /* Build a play area */ | |
517 | if (coff_mkobject(abfd) != true) | |
518 | return 0; | |
519 | coff = coff_data(abfd); | |
520 | ||
521 | ||
522 | external_sections = (SCNHDR *)bfd_alloc(abfd, readsize = (nscns * SCNHSZ)); | |
523 | if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) { | |
524 | goto fail; | |
525 | } | |
526 | ||
527 | ||
528 | ||
529 | /* Now copy data as required; construct all asections etc */ | |
530 | coff->symbol_index_slew = 0; | |
531 | coff->relocbase =0; | |
532 | coff->raw_syment_count = 0; | |
533 | coff->raw_linenos = 0; | |
534 | coff->raw_syments = 0; | |
535 | coff->sym_filepos =0; | |
536 | coff->flags = internal_f->f_flags; | |
537 | if (nscns != 0) { | |
538 | unsigned int i; | |
539 | for (i = 0; i < nscns; i++) { | |
540 | struct internal_scnhdr tmp; | |
541 | bfd_coff_swap_scnhdr_in(abfd, external_sections + i, &tmp); | |
542 | make_a_section_from_file(abfd,&tmp); | |
543 | } | |
544 | } | |
545 | /* Determine the machine architecture and type. */ | |
546 | abfd->obj_machine = 0; | |
547 | switch (internal_f->f_magic) { | |
548 | #ifdef MIPS | |
549 | case MIPS_MAGIC_1: | |
550 | case MIPS_MAGIC_2: | |
551 | case MIPS_MAGIC_3: | |
552 | abfd->obj_arch = bfd_arch_mips; | |
553 | abfd->obj_machine = 0; | |
554 | break; | |
555 | #endif | |
556 | ||
557 | #ifdef MC68MAGIC | |
558 | case MC68MAGIC: | |
559 | case M68MAGIC: | |
560 | abfd->obj_arch = bfd_arch_m68k; | |
561 | abfd->obj_machine = 68020; | |
562 | break; | |
563 | #endif | |
564 | #ifdef MC88MAGIC | |
565 | case MC88MAGIC: | |
566 | case MC88DMAGIC: | |
567 | case MC88OMAGIC: | |
568 | abfd->obj_arch = bfd_arch_m88k; | |
569 | abfd->obj_machine = 88100; | |
570 | break; | |
571 | #endif | |
572 | #ifdef I960 | |
573 | #ifdef I960ROMAGIC | |
574 | case I960ROMAGIC: | |
575 | case I960RWMAGIC: | |
576 | abfd->obj_arch = bfd_arch_i960; | |
577 | switch (F_I960TYPE & internal_f->f_flags) | |
578 | { | |
579 | default: | |
580 | case F_I960CORE: | |
581 | abfd->obj_machine = bfd_mach_i960_core; | |
582 | break; | |
583 | case F_I960KB: | |
584 | abfd->obj_machine = bfd_mach_i960_kb_sb; | |
585 | break; | |
586 | case F_I960MC: | |
587 | abfd->obj_machine = bfd_mach_i960_mc; | |
588 | break; | |
589 | case F_I960XA: | |
590 | abfd->obj_machine = bfd_mach_i960_xa; | |
591 | break; | |
592 | case F_I960CA: | |
593 | abfd->obj_machine = bfd_mach_i960_ca; | |
594 | break; | |
595 | case F_I960KA: | |
596 | abfd->obj_machine = bfd_mach_i960_ka_sa; | |
597 | break; | |
598 | ||
599 | } | |
600 | break; | |
601 | #endif | |
602 | #endif | |
603 | ||
604 | default: /* Unreadable input file type */ | |
605 | abfd->obj_arch = bfd_arch_obscure; | |
606 | break; | |
607 | } | |
608 | ||
609 | if (!(internal_f->f_flags & F_RELFLG)) | |
610 | abfd->flags |= HAS_RELOC; | |
611 | if ((internal_f->f_flags & F_EXEC)) | |
612 | abfd->flags |= EXEC_P; | |
613 | if (!(internal_f->f_flags & F_LNNO)) | |
614 | abfd->flags |= HAS_LINENO; | |
615 | if (!(internal_f->f_flags & F_LSYMS)) | |
616 | abfd->flags |= HAS_LOCALS; | |
617 | ||
618 | ||
619 | bfd_get_symcount(abfd) = internal_f->f_nsyms; | |
620 | if (internal_f->f_nsyms) | |
621 | abfd->flags |= HAS_SYMS; | |
622 | ||
623 | coff->sym_filepos = internal_f->f_symptr; | |
624 | ||
625 | ||
626 | ||
627 | coff->symbols = (coff_symbol_type *) NULL; | |
628 | bfd_get_start_address(abfd) = internal_f->f_opthdr ? internal_a->entry : 0; | |
629 | ||
630 | return abfd->xvec; | |
631 | fail: | |
632 | bfd_release(abfd, coff); | |
633 | return (bfd_target *)NULL; | |
634 | } | |
635 | ||
636 | static bfd_target * | |
637 | DEFUN(coff_object_p,(abfd), | |
638 | bfd *abfd) | |
639 | { | |
640 | int nscns; | |
641 | FILHDR filehdr; | |
642 | AOUTHDR opthdr; | |
643 | struct internal_filehdr internal_f; | |
644 | struct internal_aouthdr internal_a; | |
645 | ||
646 | bfd_error = system_call_error; | |
647 | ||
648 | /* figure out how much to read */ | |
649 | if (bfd_read((PTR) &filehdr, 1, FILHSZ, abfd) != FILHSZ) | |
650 | return 0; | |
651 | ||
652 | bfd_swap_filehdr_in(abfd, &filehdr, &internal_f); | |
653 | ||
654 | if (BADMAG(internal_f)) { | |
655 | bfd_error = wrong_format; | |
656 | return 0; | |
657 | } | |
658 | nscns =internal_f.f_nscns; | |
659 | ||
660 | if (internal_f.f_opthdr) { | |
661 | if (bfd_read((PTR) &opthdr, 1,AOUTSZ, abfd) != AOUTSZ) { | |
662 | return 0; | |
663 | } | |
664 | bfd_swap_aouthdr_in(abfd, &opthdr, &internal_a); | |
665 | } | |
666 | ||
667 | /* Seek past the opt hdr stuff */ | |
668 | bfd_seek(abfd, internal_f.f_opthdr + FILHSZ, SEEK_SET); | |
669 | ||
670 | /* if the optional header is NULL or not the correct size then | |
671 | quit; the only difference I can see between m88k dgux headers (MC88DMAGIC) | |
672 | and Intel 960 readwrite headers (I960WRMAGIC) is that the | |
673 | optional header is of a different size. | |
674 | ||
675 | But the mips keeps extra stuff in it's opthdr, so dont check | |
676 | when doing that | |
677 | */ | |
678 | ||
679 | #ifndef MIPS | |
680 | if (internal_f.f_opthdr != 0 && AOUTSZ != internal_f.f_opthdr) | |
681 | return (bfd_target *)NULL; | |
682 | #endif | |
683 | ||
684 | return coff_real_object_p(abfd, nscns, &internal_f, &internal_a); | |
685 | } | |
686 | ||
687 | ||
688 | ||
689 | ||
690 | /* | |
691 | Takes a bfd and a symbol, returns a pointer to the coff specific area | |
692 | of the symbol if there is one. | |
693 | */ | |
694 | static coff_symbol_type * | |
695 | DEFUN(coff_symbol_from,(abfd, symbol), | |
696 | bfd *abfd AND | |
697 | asymbol *symbol) | |
698 | { | |
699 | if (symbol->the_bfd->xvec->flavour != bfd_target_coff_flavour_enum) | |
700 | return (coff_symbol_type *)NULL; | |
701 | ||
702 | if (symbol->the_bfd->tdata == (PTR)NULL) | |
703 | return (coff_symbol_type *)NULL; | |
704 | ||
705 | return (coff_symbol_type *) symbol; | |
706 | } | |
707 | ||
708 | ||
709 | ||
710 | ||
711 | ||
712 | ||
713 | ||
714 | static void | |
715 | DEFUN(coff_count_linenumbers,(abfd), | |
716 | bfd *abfd) | |
717 | { | |
718 | unsigned int limit = bfd_get_symcount(abfd); | |
719 | unsigned int i; | |
720 | asymbol **p; | |
721 | { | |
722 | asection *s = abfd->sections->output_section; | |
723 | while (s) { | |
724 | BFD_ASSERT(s->lineno_count == 0); | |
725 | s = s->next; | |
726 | } | |
727 | } | |
728 | ||
729 | ||
730 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) { | |
731 | asymbol *q_maybe = *p; | |
732 | if (q_maybe->the_bfd->xvec->flavour == bfd_target_coff_flavour_enum) { | |
733 | coff_symbol_type *q = coffsymbol(q_maybe); | |
734 | if (q->lineno) { | |
735 | /* | |
736 | This symbol has a linenumber, increment the owning | |
737 | section's linenumber count | |
738 | */ | |
739 | alent *l = q->lineno; | |
740 | q->symbol.section->output_section->lineno_count++; | |
741 | l++; | |
742 | while (l->line_number) { | |
743 | q->symbol.section->output_section->lineno_count++; | |
744 | l++; | |
745 | } | |
746 | } | |
747 | } | |
748 | } | |
749 | } | |
750 | ||
751 | /* | |
752 | This function returns true if the supplied SYMENT has an AUXENT with | |
753 | a tagndx field which should be relocated. | |
754 | ||
755 | The coff book says that all auxents have this and should be moved, | |
756 | but all the actual implementations I've looked at do this .. | |
757 | (sac@cygnus.com) | |
758 | ||
759 | */ | |
760 | static boolean | |
761 | DEFUN(uses_x_sym_x_tagndx_p,(abfd, native), | |
762 | bfd *abfd AND | |
763 | struct internal_syment *native) | |
764 | { | |
765 | if (BTYPE(native->n_type) == T_STRUCT) return true; | |
766 | if (BTYPE(native->n_type) == T_UNION) return true; | |
767 | if (BTYPE(native->n_type) == T_ENUM) return true; | |
768 | return false; | |
769 | } | |
770 | ||
771 | ||
772 | /* | |
773 | This procedure runs through the native entries in a coff symbol table | |
774 | and links up all the elements which should point to one another, in | |
775 | particular these are: | |
776 | ||
777 | strtag, entag and untags have an auxent endindex which points to the | |
778 | first syment after the .eos. This is simple to do, we just keep a | |
779 | pointer to the symbol with the most recent pending strtag and patch it | |
780 | when we see the eos. This works since coff structs are never nested. | |
781 | ||
782 | ISFCN type entries have an endindex which points to the next static or | |
783 | extern in the table, thereby skipping the function contents. | |
784 | The coff book says that an ISFCN's tagindex | |
785 | points to the first .bf for the function, so far I havn't seen it | |
786 | used. We do this using the same mechanism as strtags. | |
787 | ||
788 | Each file entry has a value which points to the next file entry, | |
789 | the last file entry points to the first extern symbol in the table | |
790 | which is not an ISFCN. | |
791 | ||
792 | Each .bb entry points to the matching .eb entry, but these are nested | |
793 | so we keep a stack of them. | |
794 | ||
795 | The tagndx of .eos items points to the strtag attached to them, this | |
796 | is simply the last_tagndx again. | |
797 | ||
798 | The tagndx of items with type strtag point to the defining struct. | |
799 | This bit is complicated; We know that a struct ref and def must be | |
800 | within the same file, so all the natives will be in the same vector. | |
801 | This means that we can subtracts two pointers and get the index | |
802 | differences between to items, used to work out the true index of the | |
803 | target. | |
804 | ||
805 | We store in the name field of each syment the actual native index | |
806 | applied so we can dig it out through a pointer. */ | |
807 | ||
808 | static void | |
809 | DEFUN(coff_mangle_symbols,(bfd_ptr), | |
810 | bfd *bfd_ptr) | |
811 | { | |
812 | unsigned int symbol_count = bfd_get_symcount(bfd_ptr); | |
813 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
814 | struct internal_syment *last_tagndx = (struct internal_syment *)NULL; | |
815 | struct internal_syment *last_file = (struct internal_syment *)NULL; | |
816 | struct internal_syment *last_fcn = (struct internal_syment *)NULL; | |
817 | struct internal_syment *block_stack[50]; | |
818 | struct internal_syment **last_block = &block_stack[0]; | |
819 | boolean first_time = true; | |
820 | unsigned int symbol_index; | |
821 | unsigned int native_index = 0; | |
822 | ||
823 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) { | |
824 | coff_symbol_type *coff_symbol_ptr = | |
825 | coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
826 | if (coff_symbol_ptr == (coff_symbol_type *)NULL) { | |
827 | /* | |
828 | This symbol has no coff information in it, it will take up | |
829 | only one slot in the output symbol table | |
830 | */ | |
831 | native_index++; | |
832 | } | |
833 | else { | |
834 | struct internal_syment *syment = coff_symbol_ptr->native; | |
835 | if (syment == (struct internal_syment *)NULL) { | |
836 | native_index++; | |
837 | } | |
838 | else { | |
839 | /* Normalize the symbol flags */ | |
840 | if (coff_symbol_ptr->symbol.flags & BSF_FORT_COMM) { | |
841 | /* a common symbol is undefined with a value */ | |
842 | syment->n_scnum = N_UNDEF; | |
843 | syment->n_value = coff_symbol_ptr->symbol.value; | |
844 | } | |
845 | else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) { | |
846 | syment->n_value = coff_symbol_ptr->symbol.value; | |
847 | } | |
848 | else if (coff_symbol_ptr->symbol.flags & BSF_UNDEFINED) { | |
849 | syment->n_scnum = N_UNDEF; | |
850 | syment->n_value = 0; | |
851 | } | |
852 | else if (coff_symbol_ptr->symbol.flags & BSF_ABSOLUTE) { | |
853 | syment->n_scnum = N_ABS; | |
854 | syment->n_value = coff_symbol_ptr->symbol.value; | |
855 | } | |
856 | else { | |
857 | syment->n_scnum = | |
858 | coff_symbol_ptr->symbol.section->output_section->index+1; | |
859 | ||
860 | syment->n_value = | |
861 | coff_symbol_ptr->symbol.value + | |
862 | coff_symbol_ptr->symbol.section->output_offset + | |
863 | coff_symbol_ptr->symbol.section->output_section->vma; | |
864 | } | |
865 | ||
866 | ||
867 | /* If this symbol ties up something then do it */ | |
868 | ||
869 | if (syment->n_sclass == C_FILE && last_file != (struct internal_syment *)NULL) | |
870 | { | |
871 | last_file->n_value = native_index; | |
872 | } | |
873 | else if ((syment->n_sclass == C_EXT | |
874 | || syment->n_sclass == C_STAT | |
875 | #ifdef C_LEAFEXT | |
876 | || syment->n_sclass == C_LEAFEXT | |
877 | || syment->n_sclass == C_LEAFSTAT | |
878 | #endif | |
879 | ) | |
880 | && last_fcn != (struct internal_syment *)NULL) | |
881 | { | |
882 | union internal_auxent *auxent = (union internal_auxent *)(last_fcn+1); | |
883 | auxent->x_sym.x_fcnary.x_fcn.x_endndx = native_index; | |
884 | last_fcn = (struct internal_syment *)NULL; | |
885 | ||
886 | } | |
887 | else if (syment->n_sclass == C_EOS && last_tagndx != (struct internal_syment*)NULL) | |
888 | { | |
889 | union internal_auxent *auxent = (union internal_auxent *)(last_tagndx+1); | |
890 | /* Remember that we keep the native index in the offset | |
891 | so patch the beginning of the struct to point to this | |
892 | */ | |
893 | auxent->x_sym.x_tagndx = last_tagndx->_n._n_n._n_offset; | |
894 | auxent->x_sym.x_fcnary.x_fcn.x_endndx = syment->n_numaux + 1 + native_index; | |
895 | /* Now point the eos to the structure */ | |
896 | auxent = (union internal_auxent *)(syment+1); | |
897 | auxent->x_sym.x_tagndx = last_tagndx->_n._n_n._n_offset; | |
898 | } | |
899 | else if (syment->n_sclass == C_BLOCK | |
900 | && coff_symbol_ptr->symbol.name[1] == 'e') | |
901 | { | |
902 | union internal_auxent *auxent = (union internal_auxent *)((*(--last_block))+1); | |
903 | auxent->x_sym.x_fcnary.x_fcn.x_endndx = native_index + syment->n_numaux + 1; | |
904 | } | |
905 | if (syment->n_sclass == C_EXT | |
906 | && !ISFCN(syment->n_type) | |
907 | && first_time == true | |
908 | && last_file != (struct internal_syment *)NULL) { | |
909 | /* This is the first external symbol seen which isn't a | |
910 | function place it in the last .file entry */ | |
911 | last_file->n_value = native_index; | |
912 | first_time = false; | |
913 | } | |
914 | #ifdef C_LEAFPROC | |
915 | if (syment->n_sclass == C_LEAFPROC && | |
916 | syment->n_numaux == 2) { | |
917 | union internal_auxent *auxent = (union internal_auxent *)(syment+2); | |
918 | /* This is the definition of a leaf proc, we'll relocate the | |
919 | address */ | |
920 | auxent->x_bal.x_balntry = | |
921 | coff_symbol_ptr->symbol.section->output_offset + | |
922 | coff_symbol_ptr->symbol.section->output_section->vma + | |
923 | auxent->x_bal.x_balntry ; | |
924 | } | |
925 | #endif | |
926 | /* If this symbol needs to be tied up then remember some facts */ | |
927 | if (syment->n_sclass == C_FILE) | |
928 | { | |
929 | last_file = syment; | |
930 | } | |
931 | if (syment->n_numaux != 0) { | |
932 | /* | |
933 | If this symbol would like to point to something in the | |
934 | future then remember where it is | |
935 | */ | |
936 | if (uses_x_sym_x_tagndx_p(bfd_ptr, syment)) { | |
937 | /* | |
938 | If this is a ref to a structure then we'll tie it up | |
939 | now - there are never any forward refs for one | |
940 | */ | |
941 | if (syment->n_sclass == C_STRTAG || | |
942 | syment->n_sclass == C_ENTAG || | |
943 | syment->n_sclass == C_UNTAG) { | |
944 | last_tagndx = syment; | |
945 | } | |
946 | else { | |
947 | /* | |
948 | This is a ref to a structure - the structure must | |
949 | have been defined within the same file, and previous | |
950 | to this point, so we can deduce the new tagndx | |
951 | directly. | |
952 | */ | |
953 | union internal_auxent *auxent = (union internal_auxent *)(syment+1); | |
954 | bfd *bfd_ptr = coff_symbol_ptr->symbol.the_bfd; | |
955 | struct internal_syment *base = obj_raw_syments(bfd_ptr); | |
956 | auxent->x_sym.x_tagndx = base[auxent->x_sym.x_tagndx]._n._n_n._n_offset; | |
957 | ||
958 | ||
959 | } | |
960 | } | |
961 | if (ISFCN(syment->n_type)) { | |
962 | last_fcn = syment; | |
963 | } | |
964 | if (syment->n_sclass == C_BLOCK | |
965 | && coff_symbol_ptr->symbol.name[1] == 'b') | |
966 | { | |
967 | *last_block++ = syment; | |
968 | } | |
969 | } | |
970 | syment->_n._n_n._n_offset = native_index; | |
971 | native_index = native_index + 1 + syment->n_numaux; | |
972 | } | |
973 | } | |
974 | } | |
975 | } | |
976 | ||
977 | ||
978 | static void | |
979 | DEFUN(coff_write_symbols,(abfd), | |
980 | bfd *abfd) | |
981 | { | |
982 | unsigned int i; | |
983 | unsigned int limit = bfd_get_symcount(abfd); | |
984 | unsigned int written = 0; | |
985 | struct internal_syment dummy; | |
986 | asymbol **p; | |
987 | unsigned int string_size = 0; | |
988 | ||
989 | ||
990 | /* Seek to the right place */ | |
991 | bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET); | |
992 | ||
993 | /* Output all the symbols we have */ | |
994 | ||
995 | written = 0; | |
996 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) { | |
997 | asymbol *symbol = *p; | |
998 | coff_symbol_type *c_symbol = coff_symbol_from(abfd, symbol); | |
999 | ||
1000 | unsigned int j; | |
1001 | struct internal_syment *native; | |
1002 | if (c_symbol == (coff_symbol_type *) NULL || | |
1003 | c_symbol->native == (struct internal_syment *) NULL) { | |
1004 | /* | |
1005 | This symbol has been created by the loader, or come from a non | |
1006 | coff format. It has no native element to inherit, make our | |
1007 | own | |
1008 | */ | |
1009 | ||
1010 | native = &dummy; | |
1011 | native->n_type = T_NULL; | |
1012 | #ifdef I960 | |
1013 | native->n_flags = 0; | |
1014 | #endif | |
1015 | if (symbol->flags & BSF_ABSOLUTE) { | |
1016 | native->n_scnum = N_ABS; | |
1017 | native->n_value = symbol->value; | |
1018 | } | |
1019 | else if (symbol->flags & (BSF_UNDEFINED | BSF_FORT_COMM)) { | |
1020 | native->n_scnum = N_UNDEF; | |
1021 | native->n_value = symbol->value; | |
1022 | } | |
1023 | else if (symbol->flags & BSF_DEBUGGING) { | |
1024 | /* | |
1025 | remove name so it doesn't take up any space | |
1026 | */ | |
1027 | symbol->name = ""; | |
1028 | continue; | |
1029 | } | |
1030 | else { | |
1031 | native->n_scnum = symbol->section->output_section->index + | |
1032 | 1; | |
1033 | native->n_value = symbol->value + | |
1034 | symbol->section->output_section->vma + | |
1035 | symbol->section->output_offset; | |
1036 | #ifdef I960 | |
1037 | /* Copy the any flags from the the file hdr into the symbol */ | |
1038 | { | |
1039 | coff_symbol_type *c = coff_symbol_from(abfd, symbol); | |
1040 | if (c != (coff_symbol_type *)NULL) { | |
1041 | native->n_flags = c->symbol.the_bfd->flags; | |
1042 | } | |
1043 | } | |
1044 | #endif | |
1045 | } | |
1046 | ||
1047 | #ifdef HASPAD1 | |
1048 | native->pad1[0] = 0; | |
1049 | native->pad1[0] = 0; | |
1050 | #endif | |
1051 | ||
1052 | native->n_type = 0; | |
1053 | if (symbol->flags & BSF_LOCAL) | |
1054 | native->n_sclass = C_STAT; | |
1055 | else | |
1056 | native->n_sclass = C_EXT; | |
1057 | native->n_numaux = 0; | |
1058 | } | |
1059 | else | |
1060 | /* | |
1061 | Does this symbol have an ascociated line number - if so then | |
1062 | make it remember this symbol index. Also tag the auxent of | |
1063 | this symbol to point to the right place in the lineno table | |
1064 | */ | |
1065 | { | |
1066 | alent *lineno = c_symbol->lineno; | |
1067 | native = c_symbol->native; | |
1068 | if (lineno) { | |
1069 | unsigned int count = 0; | |
1070 | lineno[count].u.offset = written; | |
1071 | if (native->n_numaux) { | |
1072 | union internal_auxent *a = (union internal_auxent *) (native + 1); | |
1073 | ||
1074 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = | |
1075 | c_symbol->symbol.section->output_section->moving_line_filepos; | |
1076 | } | |
1077 | /* | |
1078 | And count and relocate all other linenumbers | |
1079 | */ | |
1080 | count++; | |
1081 | while (lineno[count].line_number) { | |
1082 | lineno[count].u.offset += | |
1083 | c_symbol->symbol.section->output_section->vma + | |
1084 | c_symbol->symbol.section->output_offset; | |
1085 | count++; | |
1086 | } | |
1087 | c_symbol->symbol.section->output_section->moving_line_filepos += | |
1088 | count * LINESZ; | |
1089 | ||
1090 | } | |
1091 | } /* if symbol new to coff */ | |
1092 | ||
1093 | /* Fix the symbol names */ | |
1094 | { | |
1095 | unsigned int name_length; | |
1096 | if (symbol->name == (char *) NULL) { | |
1097 | /* | |
1098 | coff symbols always have names, so we'll make one up | |
1099 | */ | |
1100 | symbol->name = "strange"; | |
1101 | } | |
1102 | name_length = strlen(symbol->name); | |
1103 | if (name_length <= SYMNMLEN) { | |
1104 | /* This name will fit into the symbol neatly */ | |
1105 | strncpy(native->_n._n_name, symbol->name, SYMNMLEN); | |
1106 | } | |
1107 | else { | |
1108 | native->_n._n_n._n_offset = string_size + 4; | |
1109 | native->_n._n_n._n_zeroes = 0; | |
1110 | string_size += name_length + 1; | |
1111 | } | |
1112 | { | |
1113 | unsigned int numaux = native->n_numaux; | |
1114 | int type = native->n_type; | |
1115 | int class = native->n_sclass; | |
1116 | SYMENT buf; | |
1117 | bfd_coff_swap_sym_out(abfd, native, &buf); | |
1118 | bfd_write((PTR)& buf, 1, SYMESZ, abfd); | |
1119 | for (j = 0; j != native->n_numaux; | |
1120 | j++) { | |
1121 | AUXENT buf1; | |
1122 | bfd_coff_swap_aux_out(abfd, | |
1123 | (union internal_auxent *)(native + j + 1), type, class, &buf1); | |
1124 | bfd_write((PTR) (native + j + 1), 1, AUXESZ, abfd); | |
1125 | } | |
1126 | /* | |
1127 | Reuse somewhere in the symbol to keep the index | |
1128 | */ | |
1129 | set_index(symbol, written); | |
1130 | written += 1 + numaux; | |
1131 | } | |
1132 | } | |
1133 | } /* for each out symbol */ | |
1134 | ||
1135 | bfd_get_symcount(abfd) = written; | |
1136 | /* Now write out strings */ | |
1137 | ||
1138 | if (string_size) { | |
1139 | unsigned int size = string_size + 4; | |
1140 | size = size; | |
1141 | bfd_write((PTR) &size, 1, sizeof(size), abfd); | |
1142 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) { | |
1143 | asymbol *q = *p; | |
1144 | size_t name_length = strlen(q->name); | |
1145 | if (name_length > SYMNMLEN) { | |
1146 | bfd_write((PTR) (q->name), 1, name_length + 1, abfd); | |
1147 | } | |
1148 | } | |
1149 | } | |
1150 | else { | |
1151 | /* We would normally not write anything here, but we'll write | |
1152 | out 4 so that any stupid coff reader which tries to read | |
1153 | the string table even when there isn't one won't croak. | |
1154 | */ | |
1155 | ||
1156 | uint32e_type size = 4; | |
1157 | size = size; | |
1158 | bfd_write((PTR)&size, 1, sizeof(size), abfd); | |
1159 | ||
1160 | } | |
1161 | ||
1162 | } | |
1163 | ||
1164 | static void | |
1165 | coff_write_relocs(abfd) | |
1166 | bfd *abfd; | |
1167 | { | |
1168 | asection *s; | |
1169 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) { | |
1170 | unsigned int i; | |
1171 | struct external_reloc dst; | |
1172 | ||
1173 | arelent **p = s->orelocation; | |
1174 | bfd_seek(abfd, s->rel_filepos, SEEK_SET); | |
1175 | for (i = 0; i < s->reloc_count; i++) { | |
1176 | struct internal_reloc n; | |
1177 | arelent *q = p[i]; | |
1178 | memset((PTR)&n, 0, sizeof(n)); | |
1179 | n.r_vaddr = q->address + s->vma; | |
1180 | if (q->sym_ptr_ptr) { | |
1181 | n.r_symndx = get_index((*(q->sym_ptr_ptr))); | |
1182 | } | |
1183 | #ifdef SELECT_RELOC | |
1184 | /* Work out reloc type from what is required */ | |
1185 | SELECT_RELOC(n.r_type, q->howto); | |
1186 | #else | |
1187 | n.r_type = q->howto->type; | |
1188 | #endif | |
1189 | bfd_swap_reloc_out(abfd, &n, &dst); | |
1190 | bfd_write((PTR) &n, 1, RELSZ, abfd); | |
1191 | } | |
1192 | } | |
1193 | } | |
1194 | ||
1195 | static void | |
1196 | DEFUN(coff_write_linenumbers,(abfd), | |
1197 | bfd *abfd) | |
1198 | { | |
1199 | asection *s; | |
1200 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) { | |
1201 | if (s->lineno_count) { | |
1202 | asymbol **q = abfd->outsymbols; | |
1203 | bfd_seek(abfd, s->line_filepos, SEEK_SET); | |
1204 | /* Find all the linenumbers in this section */ | |
1205 | while (*q) { | |
1206 | asymbol *p = *q; | |
1207 | alent *l = BFD_SEND(p->the_bfd, _get_lineno, (p->the_bfd, p)); | |
1208 | if (l) { | |
1209 | /* Found a linenumber entry, output */ | |
1210 | struct internal_lineno out; | |
1211 | LINENO buff; | |
1212 | bzero( (PTR)&out, sizeof(out)); | |
1213 | out.l_lnno = 0; | |
1214 | out.l_addr.l_symndx = l->u.offset; | |
1215 | bfd_coff_swap_lineno_out(abfd, &out, &buff); | |
1216 | bfd_write((PTR) &buff, 1, LINESZ, abfd); | |
1217 | l++; | |
1218 | while (l->line_number) { | |
1219 | out.l_lnno = l->line_number; | |
1220 | out.l_addr.l_symndx = l->u.offset; | |
1221 | bfd_coff_swap_lineno_out(abfd, &out, &buff); | |
1222 | bfd_write((PTR) &buff, 1, LINESZ, abfd); | |
1223 | l++; | |
1224 | } | |
1225 | } | |
1226 | q++; | |
1227 | } | |
1228 | } | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | ||
1233 | static asymbol * | |
1234 | coff_make_empty_symbol(abfd) | |
1235 | bfd *abfd; | |
1236 | { | |
1237 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); | |
1238 | if (new == NULL) { | |
1239 | bfd_error = no_memory; | |
1240 | return (NULL); | |
1241 | } /* on error */ | |
1242 | new->native = 0; | |
1243 | new->lineno = (alent *) NULL; | |
1244 | new->symbol.the_bfd = abfd; | |
1245 | return &new->symbol; | |
1246 | } | |
1247 | ||
1248 | static void | |
1249 | coff_print_symbol(ignore_abfd, file, symbol, how) | |
1250 | bfd *ignore_abfd; | |
1251 | FILE *file; | |
1252 | asymbol *symbol; | |
1253 | bfd_print_symbol_enum_type how; | |
1254 | { | |
1255 | switch (how) { | |
1256 | case bfd_print_symbol_name_enum: | |
1257 | fprintf(file, "%s", symbol->name); | |
1258 | break; | |
1259 | case bfd_print_symbol_type_enum: | |
1260 | fprintf(file, "coff %lx %lx", (unsigned long) coffsymbol(symbol)->native, | |
1261 | (unsigned long) coffsymbol(symbol)->lineno); | |
1262 | break; | |
1263 | case bfd_print_symbol_all_enum: | |
1264 | { | |
1265 | CONST char *section_name = symbol->section == (asection *) NULL ? | |
1266 | "*abs" : symbol->section->name; | |
1267 | bfd_print_symbol_vandf((PTR) file, symbol); | |
1268 | ||
1269 | fprintf(file, " %-5s %s %s %s", | |
1270 | section_name, | |
1271 | coffsymbol(symbol)->native ? "n" : "g", | |
1272 | coffsymbol(symbol)->lineno ? "l" : " ", | |
1273 | symbol->name); | |
1274 | } | |
1275 | ||
1276 | ||
1277 | break; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | static alent * | |
1282 | coff_get_lineno(ignore_abfd, symbol) | |
1283 | bfd *ignore_abfd; | |
1284 | asymbol *symbol; | |
1285 | { | |
1286 | return coffsymbol(symbol)->lineno; | |
1287 | } | |
1288 | ||
1289 | /* | |
1290 | Set flags and magic number of a coff file from architecture and machine | |
1291 | type. Result is true if we can represent the arch&type, false if not. | |
1292 | */ | |
1293 | static boolean | |
1294 | coff_set_flags(abfd, magicp, flagsp) | |
1295 | bfd *abfd; | |
1296 | unsigned *magicp, | |
1297 | *flagsp; | |
1298 | { | |
1299 | ||
1300 | switch (abfd->obj_arch) { | |
1301 | ||
1302 | #ifdef I960ROMAGIC | |
1303 | ||
1304 | case bfd_arch_i960: | |
1305 | ||
1306 | { | |
1307 | unsigned flags; | |
1308 | *magicp = I960ROMAGIC; | |
1309 | /* | |
1310 | ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC : | |
1311 | I960RWMAGIC); FIXME??? | |
1312 | */ | |
1313 | switch (abfd->obj_machine) { | |
1314 | case bfd_mach_i960_core: | |
1315 | flags = F_I960CORE; | |
1316 | break; | |
1317 | case bfd_mach_i960_kb_sb: | |
1318 | flags = F_I960KB; | |
1319 | break; | |
1320 | case bfd_mach_i960_mc: | |
1321 | flags = F_I960MC; | |
1322 | break; | |
1323 | case bfd_mach_i960_xa: | |
1324 | flags = F_I960XA; | |
1325 | break; | |
1326 | case bfd_mach_i960_ca: | |
1327 | flags = F_I960CA; | |
1328 | break; | |
1329 | case bfd_mach_i960_ka_sa: | |
1330 | flags = F_I960KA; | |
1331 | break; | |
1332 | default: | |
1333 | return false; | |
1334 | } | |
1335 | *flagsp = flags; | |
1336 | return true; | |
1337 | } | |
1338 | break; | |
1339 | #endif | |
1340 | #ifdef MIPS | |
1341 | case bfd_arch_mips: | |
1342 | *magicp = MIPS_MAGIC_2; | |
1343 | return true; | |
1344 | break; | |
1345 | #endif | |
1346 | #ifdef MC68MAGIC | |
1347 | case bfd_arch_m68k: | |
1348 | *magicp = MC68MAGIC; | |
1349 | return true; | |
1350 | #endif | |
1351 | ||
1352 | #ifdef MC88MAGIC | |
1353 | case bfd_arch_m88k: | |
1354 | *magicp = MC88OMAGIC; | |
1355 | return true; | |
1356 | break; | |
1357 | #endif | |
1358 | ||
1359 | default: /* Unknown architecture */ | |
1360 | return false; | |
1361 | } | |
1362 | ||
1363 | return false; | |
1364 | } | |
1365 | ||
1366 | ||
1367 | static boolean | |
1368 | coff_set_arch_mach(abfd, arch, machine) | |
1369 | bfd *abfd; | |
1370 | enum bfd_architecture arch; | |
1371 | unsigned long machine; | |
1372 | { | |
1373 | unsigned dummy1, | |
1374 | dummy2; | |
1375 | abfd->obj_arch = arch; | |
1376 | abfd->obj_machine = machine; | |
1377 | if (arch != bfd_arch_unknown && | |
1378 | coff_set_flags(abfd, &dummy1, &dummy2) != true) | |
1379 | return false; /* We can't represent this type */ | |
1380 | return true; /* We're easy ... */ | |
1381 | } | |
1382 | ||
1383 | ||
1384 | /* Calculate the file position for each section. */ | |
1385 | ||
1386 | static void | |
1387 | coff_compute_section_file_positions(abfd) | |
1388 | bfd *abfd; | |
1389 | { | |
1390 | asection *current; | |
1391 | file_ptr sofar = FILHSZ; | |
1392 | if (bfd_get_start_address(abfd)) { | |
1393 | /* | |
1394 | A start address may have been added to the original file. In this | |
1395 | case it will need an optional header to record it. | |
1396 | */ | |
1397 | abfd->flags |= EXEC_P; | |
1398 | } | |
1399 | if (abfd->flags & EXEC_P) | |
1400 | sofar += AOUTSZ; | |
1401 | ||
1402 | ||
1403 | sofar += abfd->section_count * SCNHSZ; | |
1404 | ||
1405 | for (current = abfd->sections; current != NULL; current = | |
1406 | current->next) { | |
1407 | /* Only deal with sections which have contents */ | |
1408 | if (!(current->flags & SEC_HAS_CONTENTS)) | |
1409 | continue; | |
1410 | ||
1411 | /* Align the sections in the file to the same boundary on | |
1412 | which they are aligned in virtual memory. I960 doesn't | |
1413 | do this (FIXME) so we can stay in sync with Intel. 960 | |
1414 | doesn't yet page from files... */ | |
1415 | #ifndef I960 | |
1416 | sofar = ALIGN(sofar, 1 << current->alignment_power); | |
1417 | #endif | |
1418 | /* FIXME, in demand paged files, the low order bits of the file | |
1419 | offset must match the low order bits of the virtual address. | |
1420 | "Low order" is apparently implementation defined. Add code | |
1421 | here to round sofar up to match the virtual address. */ | |
1422 | ||
1423 | current->filepos = sofar; | |
1424 | sofar += current->size; | |
1425 | } | |
1426 | obj_relocbase(abfd) = sofar; | |
1427 | } | |
1428 | ||
1429 | ||
1430 | ||
1431 | ||
1432 | /* SUPPRESS 558 */ | |
1433 | /* SUPPRESS 529 */ | |
1434 | static boolean | |
1435 | DEFUN(coff_write_object_contents,(abfd), | |
1436 | bfd *abfd) | |
1437 | { | |
1438 | asection *current; | |
1439 | boolean hasrelocs = false; | |
1440 | boolean haslinno = false; | |
1441 | file_ptr reloc_base; | |
1442 | file_ptr lineno_base; | |
1443 | file_ptr sym_base; | |
1444 | file_ptr scn_base; | |
1445 | file_ptr data_base; | |
1446 | unsigned long reloc_size = 0; | |
1447 | unsigned long lnno_size = 0; | |
1448 | asection *text_sec = NULL; | |
1449 | asection *data_sec = NULL; | |
1450 | asection *bss_sec = NULL; | |
1451 | ||
1452 | struct internal_filehdr internal_f; | |
1453 | struct internal_aouthdr internal_a; | |
1454 | ||
1455 | struct icofdata *coff = obj_icof(abfd); | |
1456 | ||
1457 | ||
1458 | bfd_error = system_call_error; | |
1459 | ||
1460 | ||
1461 | if(abfd->output_has_begun == false) { | |
1462 | coff_compute_section_file_positions(abfd); | |
1463 | } | |
1464 | ||
1465 | if (abfd->sections != (asection *)NULL) { | |
1466 | scn_base = abfd->sections->filepos; | |
1467 | } | |
1468 | else { | |
1469 | scn_base = 0; | |
1470 | } | |
1471 | if (bfd_seek(abfd, scn_base, SEEK_SET) != 0) | |
1472 | return false; | |
1473 | reloc_base = obj_relocbase(abfd); | |
1474 | ||
1475 | /* Make a pass through the symbol table to count line number entries and | |
1476 | put them into the correct asections */ | |
1477 | ||
1478 | coff_count_linenumbers(abfd); | |
1479 | data_base = scn_base; | |
1480 | ||
1481 | /* Work out the size of the reloc and linno areas */ | |
1482 | ||
1483 | for (current = abfd->sections; current != NULL; current = current->next) { | |
1484 | reloc_size += current->reloc_count * RELSZ; | |
1485 | lnno_size += current->lineno_count * LINESZ; | |
1486 | data_base += SCNHSZ; | |
1487 | } | |
1488 | ||
1489 | lineno_base = reloc_base + reloc_size; | |
1490 | sym_base = lineno_base + lnno_size; | |
1491 | ||
1492 | /* Indicate in each section->line_filepos its actual file address */ | |
1493 | for (current = abfd->sections; current != NULL; current = current->next) { | |
1494 | if (current->lineno_count) { | |
1495 | current->line_filepos = lineno_base; | |
1496 | current->moving_line_filepos = lineno_base; | |
1497 | lineno_base += current->lineno_count * LINESZ; | |
1498 | } | |
1499 | else { | |
1500 | current->line_filepos = 0; | |
1501 | } | |
1502 | if (current->reloc_count) { | |
1503 | current->rel_filepos = reloc_base; | |
1504 | reloc_base += current->reloc_count * sizeof(struct internal_reloc); | |
1505 | } | |
1506 | else { | |
1507 | current->rel_filepos = 0; | |
1508 | } | |
1509 | } | |
1510 | ||
1511 | /* Write section headers to the file. */ | |
1512 | ||
1513 | bfd_seek(abfd, | |
1514 | (file_ptr) ((abfd->flags & EXEC_P) ? | |
1515 | (FILHSZ + AOUTSZ) : FILHSZ), | |
1516 | SEEK_SET); | |
1517 | ||
1518 | { | |
1519 | #if 0 | |
1520 | unsigned int pad = abfd->flags & D_PAGED ? data_base : 0; | |
1521 | #endif | |
1522 | unsigned int pad = 0; | |
1523 | ||
1524 | for (current = abfd->sections; current != NULL; current = current->next) { | |
1525 | struct internal_scnhdr section; | |
1526 | strncpy(&(section.s_name[0]), current->name, 8); | |
1527 | section.s_vaddr = current->vma + pad; | |
1528 | section.s_paddr = current->vma + pad; | |
1529 | section.s_size = current->size - pad; | |
1530 | /* | |
1531 | If this section has no size or is unloadable then the scnptr | |
1532 | will be 0 too | |
1533 | */ | |
1534 | if (current->size - pad == 0 || | |
1535 | (current->flags & SEC_LOAD) == 0) { | |
1536 | section.s_scnptr = 0; | |
1537 | ||
1538 | } | |
1539 | else { | |
1540 | section.s_scnptr = current->filepos; | |
1541 | } | |
1542 | section.s_relptr = current->rel_filepos; | |
1543 | section.s_lnnoptr = current->line_filepos; | |
1544 | section.s_nreloc = current->reloc_count; | |
1545 | section.s_nlnno = current->lineno_count; | |
1546 | if (current->reloc_count != 0) | |
1547 | hasrelocs = true; | |
1548 | if (current->lineno_count != 0) | |
1549 | haslinno = true; | |
1550 | ||
1551 | if (!strcmp(current->name, _TEXT)) { | |
1552 | text_sec = current; | |
1553 | section.s_flags = STYP_TEXT; /* kinda stupid */ | |
1554 | } | |
1555 | else if (!strcmp(current->name, _DATA)) { | |
1556 | data_sec = current; | |
1557 | section.s_flags = STYP_DATA; /* kinda stupid */ | |
1558 | } | |
1559 | else if (!strcmp(current->name, _BSS)) { | |
1560 | bss_sec = current; | |
1561 | section.s_flags = STYP_BSS; /* kinda stupid */ | |
1562 | } | |
1563 | ||
1564 | ||
1565 | #ifdef I960 | |
1566 | section.s_align = (current->alignment_power | |
1567 | ? 1 << current->alignment_power | |
1568 | : 0); | |
1569 | ||
1570 | #endif | |
1571 | { | |
1572 | SCNHDR buff; | |
1573 | ||
1574 | swap_scnhdr_out(abfd, §ion, &buff); | |
1575 | bfd_write((PTR) (&buff), 1, SCNHSZ, abfd); | |
1576 | ||
1577 | } | |
1578 | pad = 0; | |
1579 | } | |
1580 | } | |
1581 | ||
1582 | /* OK, now set up the filehdr... */ | |
1583 | internal_f.f_nscns = abfd->section_count; | |
1584 | /* | |
1585 | We will NOT put a fucking timestamp in the header here. Every time you | |
1586 | put it back, I will come in and take it out again. I'm sorry. This | |
1587 | field does not belong here. We fill it with a 0 so it compares the | |
1588 | same but is not a reasonable time. -- gnu@cygnus.com | |
1589 | */ | |
1590 | /* | |
1591 | Well, I like it, so I'm conditionally compiling it in. | |
1592 | steve@cygnus.com | |
1593 | */ | |
1594 | #ifdef COFF_TIMESTAMP | |
1595 | internal_f.f_timdat = time(0); | |
1596 | #else | |
1597 | internal_f.f_timdat = 0; | |
1598 | #endif | |
1599 | ||
1600 | if (bfd_get_symcount(abfd) != 0) | |
1601 | internal_f.f_symptr = sym_base; | |
1602 | else | |
1603 | internal_f.f_symptr = 0; | |
1604 | ||
1605 | internal_f.f_flags = 0; | |
1606 | ||
1607 | if (abfd->flags & EXEC_P) | |
1608 | internal_f.f_opthdr = AOUTSZ; | |
1609 | else | |
1610 | internal_f.f_opthdr = 0; | |
1611 | ||
1612 | if (!hasrelocs) | |
1613 | internal_f.f_flags |= F_RELFLG; | |
1614 | if (!haslinno) | |
1615 | internal_f.f_flags |= F_LNNO; | |
1616 | if (0 == bfd_get_symcount(abfd)) | |
1617 | internal_f.f_flags |= F_LSYMS; | |
1618 | if (abfd->flags & EXEC_P) | |
1619 | internal_f.f_flags |= F_EXEC; | |
1620 | #if M88 | |
1621 | internal_f.f_flags |= F_AR32W; | |
1622 | #else | |
1623 | if (!abfd->xvec->byteorder_big_p) | |
1624 | internal_f.f_flags |= F_AR32WR; | |
1625 | #endif | |
1626 | /* | |
1627 | FIXME, should do something about the other byte orders and | |
1628 | architectures. | |
1629 | */ | |
1630 | ||
1631 | /* Set up architecture-dependent stuff */ | |
1632 | ||
1633 | { int magic = 0; | |
1634 | int flags = 0; | |
1635 | coff_set_flags(abfd, &magic, &flags); | |
1636 | internal_f.f_magic = magic; | |
1637 | internal_f.f_flags = flags; | |
1638 | ||
1639 | /* ...and the "opt"hdr... */ | |
1640 | ||
1641 | #ifdef I960 | |
1642 | internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC); | |
1643 | #endif | |
1644 | #if M88 | |
1645 | internal_a.magic = PAGEMAGICBCS; | |
1646 | #endif | |
1647 | } | |
1648 | /* Now should write relocs, strings, syms */ | |
1649 | obj_sym_filepos(abfd) = sym_base; | |
1650 | ||
1651 | if (bfd_get_symcount(abfd) != 0) { | |
1652 | coff_mangle_symbols(abfd); | |
1653 | coff_write_symbols(abfd); | |
1654 | coff_write_linenumbers(abfd); | |
1655 | coff_write_relocs(abfd); | |
1656 | } | |
1657 | if (text_sec) { | |
1658 | internal_a.tsize = text_sec->size; | |
1659 | internal_a.text_start =text_sec->size ? text_sec->vma : 0; | |
1660 | } | |
1661 | if (data_sec) { | |
1662 | internal_a.dsize = data_sec->size; | |
1663 | internal_a.data_start = data_sec->size ? data_sec->vma : 0; | |
1664 | } | |
1665 | if (bss_sec) { | |
1666 | internal_a.bsize = bss_sec->size; | |
1667 | } | |
1668 | ||
1669 | internal_a.entry = bfd_get_start_address(abfd); | |
1670 | internal_f.f_nsyms = bfd_get_symcount(abfd); | |
1671 | ||
1672 | /* now write them */ | |
1673 | if (bfd_seek(abfd, 0L, SEEK_SET) != 0) | |
1674 | return false; | |
1675 | { | |
1676 | FILHDR buff; | |
1677 | bfd_swap_filehdr_out(abfd, &internal_f, &buff); | |
1678 | bfd_write((PTR) &buff, 1, FILHSZ, abfd); | |
1679 | } | |
1680 | if (abfd->flags & EXEC_P) { | |
1681 | AOUTHDR buff; | |
1682 | bfd_swap_aouthdr_out(abfd, &internal_a, &buff); | |
1683 | bfd_write((PTR) &buff, 1, AOUTSZ, abfd); | |
1684 | } | |
1685 | return true; | |
1686 | } | |
1687 | ||
1688 | static boolean | |
1689 | coff_set_section_contents(abfd, section, location, offset, count) | |
1690 | bfd *abfd; | |
1691 | sec_ptr section; | |
1692 | PTR location; | |
1693 | file_ptr offset; | |
1694 | size_t count; | |
1695 | { | |
1696 | if (abfd->output_has_begun == false) /* set by bfd.c handler */ | |
1697 | coff_compute_section_file_positions(abfd); | |
1698 | ||
1699 | bfd_seek(abfd, (file_ptr) (section->filepos + offset), SEEK_SET); | |
1700 | ||
1701 | if (count != 0) { | |
1702 | return (bfd_write(location, 1, count, abfd) == count) ? true : false; | |
1703 | } | |
1704 | return true; | |
1705 | } | |
1706 | #if 0 | |
1707 | static boolean | |
1708 | coff_close_and_cleanup(abfd) | |
1709 | bfd *abfd; | |
1710 | { | |
1711 | if (!bfd_read_p(abfd)) | |
1712 | switch (abfd->format) { | |
1713 | case bfd_archive: | |
1714 | if (!_bfd_write_archive_contents(abfd)) | |
1715 | return false; | |
1716 | break; | |
1717 | case bfd_object: | |
1718 | if (!coff_write_object_contents(abfd)) | |
1719 | return false; | |
1720 | break; | |
1721 | default: | |
1722 | bfd_error = invalid_operation; | |
1723 | return false; | |
1724 | } | |
1725 | ||
1726 | /* We depend on bfd_close to free all the memory on the obstack. */ | |
1727 | /* FIXME if bfd_release is not using obstacks! */ | |
1728 | return true; | |
1729 | } | |
1730 | ||
1731 | #endif | |
1732 | static PTR | |
1733 | buy_and_read(abfd, where, seek_direction, size) | |
1734 | bfd *abfd; | |
1735 | file_ptr where; | |
1736 | int seek_direction; | |
1737 | size_t size; | |
1738 | { | |
1739 | PTR area = (PTR) bfd_alloc(abfd, size); | |
1740 | if (!area) { | |
1741 | bfd_error = no_memory; | |
1742 | return (NULL); | |
1743 | } | |
1744 | bfd_seek(abfd, where, seek_direction); | |
1745 | if (bfd_read(area, 1, size, abfd) != size) { | |
1746 | bfd_error = system_call_error; | |
1747 | return (NULL); | |
1748 | } /* on error */ | |
1749 | return (area); | |
1750 | } /* buy_and_read() */ | |
1751 | ||
1752 | static void | |
1753 | DEFUN(offset_symbol_indices,(abfd, symtab, count, offset), | |
1754 | bfd *abfd AND | |
1755 | struct internal_syment *symtab AND | |
1756 | unsigned long count AND | |
1757 | long offset) | |
1758 | { | |
1759 | struct internal_syment *end = symtab + count; | |
1760 | for (; symtab < end; ++symtab) { | |
1761 | if (symtab->n_sclass == C_FILE) { | |
1762 | symtab->n_value = 0; | |
1763 | } | |
1764 | else if (symtab->n_sclass == C_ALIAS) { | |
1765 | /* | |
1766 | These guys have indices in their values. | |
1767 | */ | |
1768 | symtab->n_value = symtab->n_value + offset; | |
1769 | } | |
1770 | else if (symtab->n_numaux) { | |
1771 | /* | |
1772 | anybody else without an aux, has no indices. | |
1773 | */ | |
1774 | ||
1775 | if (symtab->n_sclass == C_EOS | |
1776 | || (BTYPE(symtab->n_type) == T_STRUCT | |
1777 | && symtab->n_sclass != C_STRTAG) | |
1778 | || BTYPE(symtab->n_type) == T_UNION | |
1779 | || BTYPE(symtab->n_type) == T_ENUM) { | |
1780 | /* If the tagndx is 0 then the struct hasn't really been | |
1781 | defined, so leave it alone */ | |
1782 | ||
1783 | if(((union internal_auxent *) (symtab + 1))->x_sym.x_tagndx != 0) { | |
1784 | ((union internal_auxent *) (symtab + 1))->x_sym.x_tagndx += offset; | |
1785 | } | |
1786 | ||
1787 | } /* These guys have a tagndx */ | |
1788 | if (symtab->n_sclass == C_STRTAG | |
1789 | || symtab->n_sclass == C_UNTAG | |
1790 | || symtab->n_sclass == C_ENTAG | |
1791 | || symtab->n_sclass == C_BLOCK | |
1792 | || symtab->n_sclass == C_FCN | |
1793 | || ISFCN(symtab->n_type)) { | |
1794 | ||
1795 | ((union internal_auxent *) (symtab + | |
1796 | 1))->x_sym.x_fcnary.x_fcn.x_endndx | |
1797 | += offset; | |
1798 | ||
1799 | } /* These guys have an endndx */ | |
1800 | #ifndef I960 | |
1801 | if (ISFCN(symtab->n_type)) { | |
1802 | ((union internal_auxent *) (symtab + 1))->x_sym.x_tvndx += offset; | |
1803 | } /* These guys have a tvndx. I think... | |
1804 | (FIXME) */ | |
1805 | #endif /* Not I960 */ | |
1806 | ||
1807 | } /* if value, else if aux */ | |
1808 | symtab += symtab->n_numaux; | |
1809 | } /* walk the symtab */ | |
1810 | ||
1811 | return; | |
1812 | } /* offset_symbol_indices() */ | |
1813 | ||
1814 | #if 0 | |
1815 | /* swap the entire symbol table - we c*/ | |
1816 | static void | |
1817 | swap_raw_symtab(abfd, raw_symtab) | |
1818 | bfd *abfd; | |
1819 | SYMENT *raw_symtab; | |
1820 | { | |
1821 | long i; | |
1822 | SYMENT *end = raw_symtab + bfd_get_symcount(abfd); | |
1823 | for (; raw_symtab < end; ++raw_symtab) { | |
1824 | bfd_coff_swap_sym(abfd, raw_symtab); | |
1825 | ||
1826 | for (i = raw_symtab->n_numaux; i; --i, ++raw_symtab) { | |
1827 | bfd_coff_swap_aux(abfd, | |
1828 | (AUXENT *)(raw_symtab + 1), | |
1829 | raw_symtab->n_type, | |
1830 | raw_symtab->n_sclass); | |
1831 | } /* swap all the aux entries */ | |
1832 | } /* walk the symbol table */ | |
1833 | ||
1834 | return; | |
1835 | } /* swap_raw_symtab() */ | |
1836 | #endif | |
1837 | /* | |
1838 | read a symbol table into freshly mallocated memory, swap it, and knit the | |
1839 | symbol names into a normalized form. By normalized here I mean that all | |
1840 | symbols have an n_offset pointer that points to a NULL terminated string. | |
1841 | Oh, and the first symbol MUST be a C_FILE. If there wasn't one there | |
1842 | before, put one there. | |
1843 | */ | |
1844 | ||
1845 | static struct internal_syment * | |
1846 | DEFUN(get_normalized_symtab,(abfd), | |
1847 | bfd *abfd) | |
1848 | { | |
1849 | ||
1850 | struct internal_syment *internal; | |
1851 | struct internal_syment *internal_ptr; | |
1852 | struct internal_syment *internal_end; | |
1853 | SYMENT *raw; | |
1854 | SYMENT *raw_src; | |
1855 | SYMENT *raw_end; | |
1856 | char *string_table = NULL; | |
1857 | unsigned long size; | |
1858 | char string_table_size_buffer[4]; | |
1859 | unsigned long string_table_size = 0; | |
1860 | unsigned int raw_size; | |
1861 | if (obj_raw_syments(abfd) != (struct internal_syment *)NULL) { | |
1862 | return obj_raw_syments(abfd); | |
1863 | } | |
1864 | if ((size = bfd_get_symcount(abfd) * sizeof(struct internal_syment)) == 0) { | |
1865 | bfd_error = no_symbols; | |
1866 | return (NULL); | |
1867 | } | |
1868 | ||
1869 | internal = (struct internal_syment *)bfd_alloc(abfd, size); | |
1870 | internal_end = internal + bfd_get_symcount(abfd); | |
1871 | ||
1872 | raw_size = bfd_get_symcount(abfd) * SYMESZ; | |
1873 | raw = (SYMENT *)bfd_alloc(abfd,raw_size); | |
1874 | ||
1875 | if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1 | |
1876 | || bfd_read((PTR)raw, raw_size, 1, abfd) != raw_size) { | |
1877 | bfd_error = system_call_error; | |
1878 | return (NULL); | |
1879 | } | |
1880 | /* mark the end of the symbols */ | |
1881 | raw_end = raw + bfd_get_symcount(abfd); | |
1882 | /* | |
1883 | FIXME SOMEDAY. A string table size of zero is very weird, but | |
1884 | probably possible. If one shows up, it will probably kill us. | |
1885 | */ | |
1886 | ||
1887 | /* Swap all the raw entries */ | |
1888 | for (raw_src = raw, internal_ptr = internal; raw_src < raw_end; raw_src++, internal_ptr++) { | |
1889 | unsigned int i; | |
1890 | bfd_coff_swap_sym_in(abfd, raw_src,internal_ptr); | |
1891 | for (i = internal_ptr->n_numaux; i; --i, raw_src++, internal_ptr++) { | |
1892 | bfd_coff_swap_aux_in(abfd, (AUXENT *)(raw_src +1), internal_ptr->n_type, | |
1893 | internal_ptr->n_sclass, (union | |
1894 | internal_auxent *)(internal_ptr +1)); | |
1895 | } | |
1896 | } | |
1897 | ||
1898 | /* Free all the raw stuff */ | |
1899 | bfd_release(abfd, raw_src); | |
1900 | ||
1901 | for (internal_ptr = internal; internal_ptr < internal_end; internal_ptr ++) { | |
1902 | ||
1903 | if (internal_ptr->_n._n_n._n_zeroes != 0) { | |
1904 | /* | |
1905 | This is a "short" name. Make it long. | |
1906 | */ | |
1907 | unsigned long i = 0; | |
1908 | char *newstring = NULL; | |
1909 | /* | |
1910 | find the length of this string without walking into memory | |
1911 | that isn't ours. | |
1912 | */ | |
1913 | ||
1914 | for (i = 0; i < 8; ++i) { | |
1915 | if (internal_ptr->_n._n_name[i] == '\0') { | |
1916 | break; | |
1917 | } /* if end of string */ | |
1918 | } /* possible lengths of this string. */ | |
1919 | ||
1920 | if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) { | |
1921 | bfd_error = no_memory; | |
1922 | return (NULL); | |
1923 | } /* on error */ | |
1924 | bzero(newstring, i); | |
1925 | strncpy(newstring, internal_ptr->_n._n_name, i-1); | |
1926 | internal_ptr->_n._n_n._n_offset = (int) newstring; | |
1927 | internal_ptr->_n._n_n._n_zeroes = 0; | |
1928 | ||
1929 | } | |
1930 | else { | |
1931 | if (string_table == NULL) { | |
1932 | /* | |
1933 | NOTE: we don't read the string table until now because we | |
1934 | don't necessarily know that we have one until now. | |
1935 | */ | |
1936 | /* | |
1937 | At this point we should be "seek"'d to the end of the | |
1938 | symbols === the symbol table size. | |
1939 | */ | |
1940 | ||
1941 | if (bfd_read((char *) string_table_size_buffer, | |
1942 | sizeof(string_table_size_buffer), | |
1943 | 1, abfd) != sizeof(string_table_size)) { | |
1944 | bfd_error = system_call_error; | |
1945 | return (NULL); | |
1946 | } /* on error */ | |
1947 | ||
1948 | string_table_size = bfd_h_get_32(abfd, string_table_size_buffer); | |
1949 | ||
1950 | if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) { | |
1951 | bfd_error = no_memory; | |
1952 | return (NULL); | |
1953 | } /* on mallocation error */ | |
1954 | if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) { | |
1955 | bfd_error = system_call_error; | |
1956 | return (NULL); | |
1957 | } /* on error */ | |
1958 | } /* have not yet read the string table. */ | |
1959 | /* | |
1960 | This is a long name already. Just point it at the string in | |
1961 | memory. | |
1962 | */ | |
1963 | internal_ptr->_n._n_n._n_offset = (int) (string_table - 4 + internal_ptr->_n._n_n._n_offset); | |
1964 | ||
1965 | } /* switch on type of symbol name */ | |
1966 | ||
1967 | internal_ptr += internal_ptr->n_numaux; | |
1968 | } /* for each symbol */ | |
1969 | #if 0 | |
1970 | #ifndef GNU960 | |
1971 | /* I'm not sure of the repercussions of this, so the Intel | |
1972 | folks will always do the force | |
1973 | */ | |
1974 | if (obj_symbol_slew(abfd) > 0) | |
1975 | force_indices_file_symbol_relative(abfd, internal); | |
1976 | #else | |
1977 | force_indices_file_symbol_relative(abfd, internal); | |
1978 | #endif | |
1979 | #endif | |
1980 | obj_raw_syments(abfd) = internal; | |
1981 | obj_string_table(abfd) = string_table; | |
1982 | ||
1983 | return (internal); | |
1984 | } /* get_normalized_symtab() */ | |
1985 | ||
1986 | static | |
1987 | struct sec * | |
1988 | DEFUN(section_from_bfd_index,(abfd, index), | |
1989 | bfd *abfd AND | |
1990 | int index) | |
1991 | { | |
1992 | if (index > 0) { | |
1993 | struct sec *answer = abfd->sections; | |
1994 | while (--index) { | |
1995 | answer = answer->next; | |
1996 | } | |
1997 | return answer; | |
1998 | } | |
1999 | return 0; | |
2000 | } | |
2001 | ||
2002 | ||
2003 | ||
2004 | ||
2005 | static boolean | |
2006 | coff_slurp_line_table(abfd, asect) | |
2007 | bfd *abfd; | |
2008 | asection *asect; | |
2009 | { | |
2010 | LINENO *native_lineno; | |
2011 | alent *lineno_cache; | |
2012 | ||
2013 | BFD_ASSERT(asect->lineno == (alent *) NULL); | |
2014 | ||
2015 | native_lineno = (LINENO *) buy_and_read(abfd, | |
2016 | asect->line_filepos, | |
2017 | SEEK_SET, | |
2018 | (size_t) (LINESZ * | |
2019 | asect->lineno_count)); | |
2020 | lineno_cache = | |
2021 | (alent *) bfd_alloc(abfd, (size_t) ((asect->lineno_count + 1) * sizeof(alent))); | |
2022 | if (lineno_cache == NULL) { | |
2023 | bfd_error = no_memory; | |
2024 | return false; | |
2025 | } else { | |
2026 | unsigned int counter = 0; | |
2027 | alent *cache_ptr = lineno_cache; | |
2028 | LINENO *src = native_lineno; | |
2029 | ||
2030 | while (counter < asect->lineno_count) { | |
2031 | struct internal_lineno dst; | |
2032 | bfd_coff_swap_lineno_in(abfd, src, &dst); | |
2033 | cache_ptr->line_number = dst.l_lnno; | |
2034 | ||
2035 | if (cache_ptr->line_number == 0) { | |
2036 | coff_symbol_type *sym = | |
2037 | (coff_symbol_type *) (dst.l_addr.l_symndx | |
2038 | + obj_symbol_slew(abfd) | |
2039 | + obj_raw_syments(abfd))->_n._n_n._n_zeroes; | |
2040 | cache_ptr->u.sym = (asymbol *) sym; | |
2041 | sym->lineno = cache_ptr; | |
2042 | } | |
2043 | else { | |
2044 | cache_ptr->u.offset = dst.l_addr.l_paddr | |
2045 | - bfd_section_vma(abfd, asect); | |
2046 | } /* If no linenumber expect a symbol index */ | |
2047 | ||
2048 | cache_ptr++; | |
2049 | src++; | |
2050 | counter++; | |
2051 | } | |
2052 | cache_ptr->line_number = 0; | |
2053 | ||
2054 | } | |
2055 | asect->lineno = lineno_cache; | |
2056 | /* FIXME, free native_lineno here, or use alloca or something. */ | |
2057 | return true; | |
2058 | } /* coff_slurp_line_table() */ | |
2059 | ||
2060 | #if 0 | |
2061 | static struct internal_syment * | |
2062 | DEFUN(find_next_file_symbol,(abfd, current, end), | |
2063 | bfd *abfd AND | |
2064 | struct internal_syment *current AND | |
2065 | struct internal_syment *end) | |
2066 | { | |
2067 | current += current->n_numaux + 1; | |
2068 | ||
2069 | while (current < end) { | |
2070 | if (current->n_sclass== C_FILE) { | |
2071 | return (current); | |
2072 | } | |
2073 | current += current->n_numaux + 1; | |
2074 | } | |
2075 | return end; | |
2076 | } | |
2077 | #endif | |
2078 | ||
2079 | /* | |
2080 | Note that C_FILE symbols can, and some do, have more than 1 aux entry. | |
2081 | */ | |
2082 | #if 0 | |
2083 | static void | |
2084 | DEFUN(force_indices_file_symbol_relative,(abfd, symtab), | |
2085 | bfd *abfd AND | |
2086 | struct internal_syment *symtab) | |
2087 | { | |
2088 | struct internal_syment *end = symtab + bfd_get_symcount(abfd); | |
2089 | struct internal_syment *current; | |
2090 | struct internal_syment *next; | |
2091 | /* the first symbol had damn well better be a C_FILE. */ | |
2092 | BFD_ASSERT(symtab->n_sclass == C_FILE); | |
2093 | ||
2094 | for (current = find_next_file_symbol(abfd, symtab, end); | |
2095 | current < end; | |
2096 | current = next) { | |
2097 | offset_symbol_indices(abfd, current, | |
2098 | ((next = | |
2099 | find_next_file_symbol(abfd, current, | |
2100 | end)) - current), | |
2101 | symtab - current); | |
2102 | } | |
2103 | return; | |
2104 | } | |
2105 | #endif | |
2106 | static boolean | |
2107 | DEFUN(coff_slurp_symbol_table,(abfd), | |
2108 | bfd *abfd) | |
2109 | { | |
2110 | struct internal_syment *native_symbols; | |
2111 | coff_symbol_type *cached_area; | |
2112 | unsigned int *table_ptr; | |
2113 | ||
2114 | unsigned int number_of_symbols = 0; | |
2115 | if (obj_symbols(abfd)) | |
2116 | return true; | |
2117 | bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET); | |
2118 | ||
2119 | /* Read in the symbol table */ | |
2120 | if ((native_symbols = get_normalized_symtab(abfd)) == NULL) { | |
2121 | return (false); | |
2122 | } /* on error */ | |
2123 | ||
2124 | ||
2125 | /* Allocate enough room for all the symbols in cached form */ | |
2126 | cached_area = | |
2127 | (coff_symbol_type *) | |
2128 | bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(coff_symbol_type))); | |
2129 | ||
2130 | if (cached_area == NULL) { | |
2131 | bfd_error = no_memory; | |
2132 | return false; | |
2133 | } /* on error */ | |
2134 | table_ptr = | |
2135 | (unsigned int *) | |
2136 | bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(unsigned int))); | |
2137 | ||
2138 | if (table_ptr == NULL) { | |
2139 | bfd_error = no_memory; | |
2140 | return false; | |
2141 | } else { | |
2142 | coff_symbol_type *dst = cached_area; | |
2143 | unsigned int last_native_index = bfd_get_symcount(abfd); | |
2144 | unsigned int this_index = 0; | |
2145 | while (this_index < last_native_index) { | |
2146 | struct internal_syment *src = native_symbols + this_index; | |
2147 | table_ptr[this_index] = number_of_symbols; | |
2148 | dst->symbol.the_bfd = abfd; | |
2149 | ||
2150 | dst->symbol.name = (char *)(src->_n._n_n._n_offset); | |
2151 | /* | |
2152 | We use the native name field to point to the cached field | |
2153 | */ | |
2154 | src->_n._n_n._n_zeroes = (int) dst; | |
2155 | dst->symbol.section = section_from_bfd_index(abfd, | |
2156 | src->n_scnum); | |
2157 | switch (src->n_sclass) { | |
2158 | #ifdef I960 | |
2159 | case C_LEAFEXT: | |
2160 | #if 0 | |
2161 | dst->symbol.value = src->n_value - dst->symbol.section->vma; | |
2162 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; | |
2163 | dst->symbol.flags |= BSF_NOT_AT_END; | |
2164 | #endif | |
2165 | /* Fall through to next case */ | |
2166 | ||
2167 | #endif | |
2168 | ||
2169 | case C_EXT: | |
2170 | if ((src->n_scnum) == 0) { | |
2171 | if ((src->n_value) == 0) { | |
2172 | dst->symbol.flags = BSF_UNDEFINED; | |
2173 | dst->symbol.value= 0; | |
2174 | } | |
2175 | else { | |
2176 | dst->symbol.flags = BSF_FORT_COMM; | |
2177 | dst->symbol.value = (src->n_value); | |
2178 | } | |
2179 | } | |
2180 | else { | |
2181 | /* | |
2182 | Base the value as an index from the base of the | |
2183 | section | |
2184 | */ | |
2185 | if (dst->symbol.section == (asection *) NULL) { | |
2186 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL | BSF_ABSOLUTE; | |
2187 | dst->symbol.value = src->n_value; | |
2188 | } | |
2189 | else { | |
2190 | dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL; | |
2191 | dst->symbol.value = src->n_value - dst->symbol.section->vma; | |
2192 | } | |
2193 | if (ISFCN((src->n_type))) { | |
2194 | /* | |
2195 | A function ext does not go at the end of a file | |
2196 | */ | |
2197 | dst->symbol.flags |= BSF_NOT_AT_END; | |
2198 | } | |
2199 | } | |
2200 | ||
2201 | break; | |
2202 | case C_STAT: /* static */ | |
2203 | #ifdef I960 | |
2204 | case C_LEAFSTAT: /* static leaf procedure */ | |
2205 | #endif | |
2206 | case C_LABEL: /* label */ | |
2207 | dst->symbol.flags = BSF_LOCAL; | |
2208 | /* | |
2209 | Base the value as an index from the base of the section | |
2210 | */ | |
2211 | dst->symbol.value = (src->n_value) - dst->symbol.section->vma; | |
2212 | break; | |
2213 | ||
2214 | case C_MOS: /* member of structure */ | |
2215 | case C_EOS: /* end of structure */ | |
2216 | case C_REGPARM: /* register parameter */ | |
2217 | case C_REG: /* register variable */ | |
2218 | #ifdef C_AUTOARG | |
2219 | case C_AUTOARG: /* 960-specific storage class */ | |
2220 | #endif | |
2221 | case C_TPDEF: /* type definition */ | |
2222 | ||
2223 | case C_ARG: | |
2224 | case C_AUTO: /* automatic variable */ | |
2225 | case C_FIELD: /* bit field */ | |
2226 | case C_ENTAG: /* enumeration tag */ | |
2227 | case C_MOE: /* member of enumeration */ | |
2228 | case C_MOU: /* member of union */ | |
2229 | case C_UNTAG: /* union tag */ | |
2230 | ||
2231 | dst->symbol.flags = BSF_DEBUGGING; | |
2232 | dst->symbol.value = (src->n_value); | |
2233 | break; | |
2234 | ||
2235 | case C_FILE: /* file name */ | |
2236 | case C_STRTAG: /* structure tag */ | |
2237 | dst->symbol.flags = BSF_DEBUGGING; | |
2238 | dst->symbol.value = (src->n_value); | |
2239 | ||
2240 | break; | |
2241 | case C_BLOCK: /* ".bb" or ".eb" */ | |
2242 | case C_FCN: /* ".bf" or ".ef" */ | |
2243 | dst->symbol.flags = BSF_LOCAL; | |
2244 | /* | |
2245 | Base the value as an index from the base of the section | |
2246 | */ | |
2247 | dst->symbol.value = (src->n_value) - dst->symbol.section->vma; | |
2248 | ||
2249 | break; | |
2250 | case C_EFCN: /* physical end of function */ | |
2251 | case C_NULL: | |
2252 | case C_EXTDEF: /* external definition */ | |
2253 | case C_ULABEL: /* undefined label */ | |
2254 | case C_USTATIC: /* undefined static */ | |
2255 | case C_LINE: /* line # reformatted as symbol table entry */ | |
2256 | case C_ALIAS: /* duplicate tag */ | |
2257 | case C_HIDDEN: /* ext symbol in dmert public lib */ | |
2258 | ||
2259 | default: | |
2260 | ||
2261 | abort(); | |
2262 | dst->symbol.flags = BSF_DEBUGGING; | |
2263 | dst->symbol.value = (src->n_value); | |
2264 | ||
2265 | break; | |
2266 | } | |
2267 | ||
2268 | BFD_ASSERT(dst->symbol.flags != 0); | |
2269 | ||
2270 | dst->native = src; | |
2271 | ||
2272 | dst->symbol.udata = 0; | |
2273 | dst->lineno = (alent *) NULL; | |
2274 | this_index += (src->n_numaux) + 1; | |
2275 | dst++; | |
2276 | number_of_symbols++; | |
2277 | } /* walk the native symtab */ | |
2278 | } /* bfdize the native symtab */ | |
2279 | ||
2280 | obj_symbols(abfd) = cached_area; | |
2281 | obj_raw_syments(abfd) = native_symbols; | |
2282 | ||
2283 | bfd_get_symcount(abfd) = number_of_symbols; | |
2284 | obj_convert(abfd) = table_ptr; | |
2285 | /* Slurp the line tables for each section too */ | |
2286 | { | |
2287 | asection *p; | |
2288 | p = abfd->sections; | |
2289 | while (p) { | |
2290 | coff_slurp_line_table(abfd, p); | |
2291 | p = p->next; | |
2292 | } | |
2293 | } | |
2294 | return true; | |
2295 | } /* coff_slurp_symbol_table() */ | |
2296 | ||
2297 | static unsigned int | |
2298 | coff_get_symtab_upper_bound(abfd) | |
2299 | bfd *abfd; | |
2300 | { | |
2301 | if (!coff_slurp_symbol_table(abfd)) | |
2302 | return 0; | |
2303 | ||
2304 | return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *)); | |
2305 | } | |
2306 | ||
2307 | ||
2308 | static unsigned int | |
2309 | coff_get_symtab(abfd, alocation) | |
2310 | bfd *abfd; | |
2311 | asymbol **alocation; | |
2312 | { | |
2313 | unsigned int counter = 0; | |
2314 | coff_symbol_type *symbase; | |
2315 | coff_symbol_type **location = (coff_symbol_type **) (alocation); | |
2316 | if (!coff_slurp_symbol_table(abfd)) | |
2317 | return 0; | |
2318 | ||
2319 | for (symbase = obj_symbols(abfd); counter++ < bfd_get_symcount(abfd);) | |
2320 | *(location++) = symbase++; | |
2321 | *location++ = 0; | |
2322 | return bfd_get_symcount(abfd); | |
2323 | } | |
2324 | ||
2325 | static unsigned int | |
2326 | coff_get_reloc_upper_bound(abfd, asect) | |
2327 | bfd *abfd; | |
2328 | sec_ptr asect; | |
2329 | { | |
2330 | if (bfd_get_format(abfd) != bfd_object) { | |
2331 | bfd_error = invalid_operation; | |
2332 | return 0; | |
2333 | } | |
2334 | return (asect->reloc_count + 1) * sizeof(arelent *); | |
2335 | } | |
2336 | ||
2337 | static boolean | |
2338 | DEFUN(coff_slurp_reloc_table,(abfd, asect, symbols), | |
2339 | bfd *abfd AND | |
2340 | sec_ptr asect AND | |
2341 | asymbol **symbols) | |
2342 | { | |
2343 | RELOC *native_relocs; | |
2344 | arelent *reloc_cache; | |
2345 | if (asect->relocation) | |
2346 | return true; | |
2347 | if (asect->reloc_count == 0) | |
2348 | return true; | |
2349 | if (!coff_slurp_symbol_table(abfd)) | |
2350 | return false; | |
2351 | native_relocs = | |
2352 | (RELOC *) buy_and_read(abfd, | |
2353 | asect->rel_filepos, | |
2354 | SEEK_SET, | |
2355 | (size_t) (RELSZ * | |
2356 | asect->reloc_count)); | |
2357 | reloc_cache = (arelent *) | |
2358 | bfd_alloc(abfd, (size_t) (asect->reloc_count * sizeof(arelent))); | |
2359 | ||
2360 | if (reloc_cache == NULL) { | |
2361 | bfd_error = no_memory; | |
2362 | return false; | |
2363 | } { /* on error */ | |
2364 | arelent *cache_ptr; | |
2365 | RELOC *src; | |
2366 | for (cache_ptr = reloc_cache, | |
2367 | src = native_relocs; | |
2368 | cache_ptr < reloc_cache + asect->reloc_count; | |
2369 | cache_ptr++, | |
2370 | src++) { | |
2371 | struct internal_reloc dst; | |
2372 | asymbol *ptr; | |
2373 | bfd_swap_reloc_in(abfd, src, &dst); | |
2374 | dst.r_symndx += obj_symbol_slew(abfd); | |
2375 | cache_ptr->sym_ptr_ptr = symbols + obj_convert(abfd)[dst.r_symndx]; | |
2376 | ||
2377 | ptr = *(cache_ptr->sym_ptr_ptr); | |
2378 | cache_ptr->address = dst.r_vaddr; | |
2379 | /* | |
2380 | The symbols definitions that we have read in have been | |
2381 | relocated as if their sections started at 0. But the offsets | |
2382 | refering to the symbols in the raw data have not been | |
2383 | modified, so we have to have a negative addend to compensate. | |
2384 | ||
2385 | Note that symbols which used to be common must be left alone | |
2386 | */ | |
2387 | ||
2388 | if (ptr->the_bfd == abfd | |
2389 | && ptr->section != (asection *) NULL | |
2390 | && ((ptr->flags & BSF_OLD_COMMON)== 0)) | |
2391 | { | |
2392 | cache_ptr->addend = -(ptr->section->vma + ptr->value); | |
2393 | } | |
2394 | else { | |
2395 | cache_ptr->addend = 0; | |
2396 | } | |
2397 | ||
2398 | cache_ptr->address -= asect->vma; | |
2399 | ||
2400 | cache_ptr->section = (asection *) NULL; | |
2401 | ||
2402 | #if I960 | |
2403 | cache_ptr->howto = howto_table + dst.r_type; | |
2404 | #endif | |
2405 | #if M68 | |
2406 | cache_ptr->howto = howto_table + dst.r_type - R_RELBYTE; | |
2407 | #endif | |
2408 | #if M88 | |
2409 | if (dst.r_type >= R_PCR16L && dst.r_type <= R_VRT32) { | |
2410 | cache_ptr->howto = howto_table + dst.r_type - R_PCR16L; | |
2411 | cache_ptr->addend += dst.r_offset << 16; | |
2412 | } | |
2413 | else { | |
2414 | BFD_ASSERT(0); | |
2415 | } | |
2416 | #endif | |
2417 | ||
2418 | } | |
2419 | ||
2420 | } | |
2421 | ||
2422 | asect->relocation = reloc_cache; | |
2423 | return true; | |
2424 | } | |
2425 | ||
2426 | ||
2427 | /* This is stupid. This function should be a boolean predicate */ | |
2428 | static unsigned int | |
2429 | coff_canonicalize_reloc(abfd, section, relptr, symbols) | |
2430 | bfd *abfd; | |
2431 | sec_ptr section; | |
2432 | arelent **relptr; | |
2433 | asymbol **symbols; | |
2434 | { | |
2435 | arelent *tblptr = section->relocation; | |
2436 | unsigned int count = 0; | |
2437 | if (!(tblptr || coff_slurp_reloc_table(abfd, section, symbols))) | |
2438 | return 0; | |
2439 | tblptr = section->relocation; | |
2440 | if (!tblptr) | |
2441 | return 0; | |
2442 | ||
2443 | for (; count++ < section->reloc_count;) | |
2444 | *relptr++ = tblptr++; | |
2445 | ||
2446 | *relptr = 0; | |
2447 | ||
2448 | return section->reloc_count; | |
2449 | } | |
2450 | ||
2451 | ||
2452 | /* | |
2453 | provided a bfd, a section and an offset into the section, calculate and | |
2454 | return the name of the source file and the line nearest to the wanted | |
2455 | location. | |
2456 | */ | |
2457 | ||
2458 | static boolean | |
2459 | DEFUN(coff_find_nearest_line,(abfd, | |
2460 | section, | |
2461 | symbols, | |
2462 | offset, | |
2463 | filename_ptr, | |
2464 | functionname_ptr, | |
2465 | line_ptr), | |
2466 | bfd *abfd AND | |
2467 | asection *section AND | |
2468 | asymbol **symbols AND | |
2469 | bfd_vma offset AND | |
2470 | CONST char **filename_ptr AND | |
2471 | CONST char **functionname_ptr AND | |
2472 | unsigned int *line_ptr) | |
2473 | { | |
2474 | static bfd *cache_abfd; | |
2475 | static asection *cache_section; | |
2476 | static bfd_vma cache_offset; | |
2477 | static unsigned int cache_i; | |
2478 | static alent *cache_l; | |
2479 | ||
2480 | unsigned int i = 0; | |
2481 | struct icofdata *cof = obj_icof(abfd); | |
2482 | /* Run through the raw syments if available */ | |
2483 | struct internal_syment *p; | |
2484 | alent *l; | |
2485 | unsigned int line_base = 0; | |
2486 | ||
2487 | ||
2488 | *filename_ptr = 0; | |
2489 | *functionname_ptr = 0; | |
2490 | *line_ptr = 0; | |
2491 | ||
2492 | /* Don't try and find line numbers in a non coff file */ | |
2493 | if (abfd->xvec->flavour != bfd_target_coff_flavour_enum) | |
2494 | return false; | |
2495 | ||
2496 | if (cof == (struct icofdata *)NULL) | |
2497 | return false; | |
2498 | ||
2499 | p = cof->raw_syments; | |
2500 | /* | |
2501 | I don't know for sure what's right, but this isn't it. First off, an | |
2502 | object file may not have any C_FILE's in it. After | |
2503 | get_normalized_symtab(), it should have at least 1, the one I put | |
2504 | there, but otherwise, all bets are off. Point #2, the first C_FILE | |
2505 | isn't necessarily the right C_FILE because any given object may have | |
2506 | many. I think you'll have to track sections as they coelesce in order | |
2507 | to find the C_STAT symbol for this section. Then you'll have to work | |
2508 | backwards to find the previous C_FILE, or choke if you get to a C_STAT | |
2509 | for the same kind of section. That will mean that the original object | |
2510 | file didn't have a C_FILE. xoxorich. | |
2511 | */ | |
2512 | ||
2513 | #ifdef WEREBEINGPEDANTIC | |
2514 | return false; | |
2515 | #endif | |
2516 | ||
2517 | for (i = 0; i < cof->raw_syment_count; i++) { | |
2518 | if (p->n_sclass == C_FILE) { | |
2519 | /* File name is embeded in auxent */ | |
2520 | /* | |
2521 | This isn't right. The fname should probably be normalized | |
2522 | during get_normalized_symtab(). In any case, what was here | |
2523 | wasn't right because a SYMENT.n_name isn't an | |
2524 | AUXENT.x_file.x_fname. xoxorich. | |
2525 | */ | |
2526 | ||
2527 | *filename_ptr = ((AUXENT *) (p + 1))->x_file.x_fname; | |
2528 | break; | |
2529 | } | |
2530 | p += 1 + p->n_numaux; | |
2531 | } | |
2532 | /* Now wander though the raw linenumbers of the section */ | |
2533 | /* | |
2534 | If this is the same bfd as we were previously called with and this is | |
2535 | the same section, and the offset we want is further down then we can | |
2536 | prime the lookup loop | |
2537 | */ | |
2538 | if (abfd == cache_abfd && | |
2539 | section == cache_section && | |
2540 | offset >= cache_offset) { | |
2541 | i = cache_i; | |
2542 | l = cache_l; | |
2543 | } | |
2544 | else { | |
2545 | i = 0; | |
2546 | l = section->lineno; | |
2547 | } | |
2548 | ||
2549 | for (; i < section->lineno_count; i++) { | |
2550 | if (l->line_number == 0) { | |
2551 | /* Get the symbol this line number points at */ | |
2552 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); | |
2553 | *functionname_ptr = coff->symbol.name; | |
2554 | if (coff->native) { | |
2555 | struct internal_syment *s = coff->native; | |
2556 | s = s + 1 + s->n_numaux; | |
2557 | /* | |
2558 | S should now point to the .bf of the function | |
2559 | */ | |
2560 | if (s->n_numaux) { | |
2561 | /* | |
2562 | The linenumber is stored in the auxent | |
2563 | */ | |
2564 | union internal_auxent *a = (union internal_auxent *) (s + 1); | |
2565 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; | |
2566 | } | |
2567 | } | |
2568 | } | |
2569 | else { | |
2570 | if (l->u.offset > offset) | |
2571 | break; | |
2572 | *line_ptr = l->line_number + line_base + 1; | |
2573 | } | |
2574 | l++; | |
2575 | } | |
2576 | ||
2577 | cache_abfd = abfd; | |
2578 | cache_section = section; | |
2579 | cache_offset = offset; | |
2580 | cache_i = i; | |
2581 | cache_l = l; | |
2582 | return true; | |
2583 | } | |
2584 | ||
2585 | #ifdef GNU960 | |
2586 | file_ptr | |
2587 | coff_sym_filepos(abfd) | |
2588 | bfd *abfd; | |
2589 | { | |
2590 | return obj_sym_filepos(abfd); | |
2591 | } | |
2592 | #endif | |
2593 | ||
2594 | ||
2595 | static int | |
2596 | DEFUN(coff_sizeof_headers,(abfd, reloc), | |
2597 | bfd *abfd AND | |
2598 | boolean reloc) | |
2599 | { | |
2600 | size_t size; | |
2601 | ||
2602 | if (reloc == false) { | |
2603 | size = FILHSZ + AOUTSZ; | |
2604 | } | |
2605 | else { | |
2606 | size = FILHSZ; | |
2607 | } | |
2608 | ||
2609 | size += abfd->section_count * SCNHSZ; | |
2610 | return size; | |
2611 | } | |
2612 | ||
2613 | ||
2614 | #define coff_core_file_failing_command _bfd_dummy_core_file_failing_command | |
2615 | #define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal | |
2616 | #define coff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p | |
2617 | #define coff_slurp_armap bfd_slurp_coff_armap | |
2618 | #define coff_slurp_extended_name_table _bfd_slurp_extended_name_table | |
2619 | #define coff_truncate_arname bfd_dont_truncate_arname | |
2620 | #define coff_openr_next_archived_file bfd_generic_openr_next_archived_file | |
2621 | #define coff_generic_stat_arch_elt bfd_generic_stat_arch_elt | |
2622 | #define coff_get_section_contents bfd_generic_get_section_contents | |
2623 | #define coff_close_and_cleanup bfd_generic_close_and_cleanup |