]>
Commit | Line | Data |
---|---|---|
fb3be09b JG |
1 | /* BFD back-end for Intel 960 b.out binaries. |
2 | Copyright (C) 1990-1991 Free Software Foundation, Inc. | |
3 | Written by Cygnus Support. | |
7ed4093a | 4 | |
fb3be09b | 5 | This file is part of BFD, the Binary File Descriptor library. |
7ed4093a | 6 | |
fb3be09b | 7 | This program is free software; you can redistribute it and/or modify |
7ed4093a | 8 | it under the terms of the GNU General Public License as published by |
fb3be09b JG |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. | |
7ed4093a | 11 | |
fb3be09b | 12 | This program is distributed in the hope that it will be useful, |
7ed4093a SC |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
fb3be09b JG |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
7ed4093a SC |
20 | |
21 | /* $Id$ */ | |
22 | ||
7ed4093a | 23 | #include "bfd.h" |
bbc8d484 | 24 | #include "sysdep.h" |
7ed4093a SC |
25 | #include "libbfd.h" |
26 | ||
7ed4093a SC |
27 | #include "bout.h" |
28 | ||
7ed4093a | 29 | #include "stab.gnu.h" |
359f1dee | 30 | #include "libaout.h" /* BFD a.out internal data structures */ |
7ed4093a SC |
31 | |
32 | /* Align an address by rounding it up to a power of two. It leaves the | |
33 | address unchanged if align == 0 (2^0 = alignment of 1 byte) */ | |
34 | #define i960_align(addr, align) \ | |
35 | ( ((addr) + ((1<<(align))-1)) & (-1 << (align))) | |
36 | ||
7ed4093a | 37 | |
7ed4093a SC |
38 | PROTO (static boolean, b_out_squirt_out_relocs,(bfd *abfd, asection *section)); |
39 | PROTO (static bfd_target *, b_out_callback, (bfd *)); | |
40 | ||
f4d2c0bb SC |
41 | PROTO (boolean, aout_32_slurp_symbol_table, (bfd *abfd)); |
42 | PROTO (void , aout_32_write_syms, ()); | |
7ed4093a | 43 | |
bbc8d484 JG |
44 | /* Swaps the information in an executable header taken from a raw byte |
45 | stream memory image, into the internal exec_header structure. */ | |
87059abb | 46 | |
bbc8d484 JG |
47 | PROTO(void, bout_swap_exec_header_in, |
48 | (bfd *abfd, | |
49 | struct external_exec *raw_bytes, | |
50 | struct internal_exec *execp)); | |
51 | ||
52 | void | |
53 | DEFUN(bout_swap_exec_header_in,(abfd, raw_bytes, execp), | |
54 | bfd *abfd AND | |
55 | struct external_exec *raw_bytes AND | |
56 | struct internal_exec *execp) | |
7ed4093a | 57 | { |
bbc8d484 JG |
58 | struct external_exec *bytes = (struct external_exec *)raw_bytes; |
59 | ||
60 | /* Now fill in fields in the execp, from the bytes in the raw data. */ | |
61 | execp->a_info = bfd_h_get_32 (abfd, bytes->e_info); | |
62 | execp->a_text = GET_WORD (abfd, bytes->e_text); | |
63 | execp->a_data = GET_WORD (abfd, bytes->e_data); | |
64 | execp->a_bss = GET_WORD (abfd, bytes->e_bss); | |
65 | execp->a_syms = GET_WORD (abfd, bytes->e_syms); | |
66 | execp->a_entry = GET_WORD (abfd, bytes->e_entry); | |
67 | execp->a_trsize = GET_WORD (abfd, bytes->e_trsize); | |
68 | execp->a_drsize = GET_WORD (abfd, bytes->e_drsize); | |
69 | execp->a_tload = GET_WORD (abfd, bytes->e_tload); | |
70 | execp->a_dload = GET_WORD (abfd, bytes->e_dload); | |
71 | execp->a_talign = bytes->e_talign[0]; | |
72 | execp->a_dalign = bytes->e_dalign[0]; | |
73 | execp->a_balign = bytes->e_balign[0]; | |
74 | } | |
7ed4093a | 75 | |
bbc8d484 JG |
76 | /* Swaps the information in an internal exec header structure into the |
77 | supplied buffer ready for writing to disk. */ | |
78 | ||
79 | PROTO(void, bout_swap_exec_header_out, | |
80 | (bfd *abfd, | |
81 | struct internal_exec *execp, | |
82 | struct external_exec *raw_bytes)); | |
83 | void | |
84 | DEFUN(bout_swap_exec_header_out,(abfd, execp, raw_bytes), | |
85 | bfd *abfd AND | |
86 | struct internal_exec *execp AND | |
87 | struct external_exec *raw_bytes) | |
88 | { | |
89 | struct external_exec *bytes = (struct external_exec *)raw_bytes; | |
90 | ||
91 | /* Now fill in fields in the raw data, from the fields in the exec struct. */ | |
92 | bfd_h_put_32 (abfd, execp->a_info , bytes->e_info); | |
93 | PUT_WORD (abfd, execp->a_text , bytes->e_text); | |
94 | PUT_WORD (abfd, execp->a_data , bytes->e_data); | |
95 | PUT_WORD (abfd, execp->a_bss , bytes->e_bss); | |
96 | PUT_WORD (abfd, execp->a_syms , bytes->e_syms); | |
97 | PUT_WORD (abfd, execp->a_entry , bytes->e_entry); | |
98 | PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize); | |
99 | PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize); | |
100 | PUT_WORD (abfd, execp->a_tload , bytes->e_tload); | |
101 | PUT_WORD (abfd, execp->a_dload , bytes->e_dload); | |
102 | bytes->e_talign[0] = execp->a_talign; | |
103 | bytes->e_dalign[0] = execp->a_dalign; | |
104 | bytes->e_balign[0] = execp->a_balign; | |
105 | bytes->e_unused[0] = 0; /* Clean structs are godly structs */ | |
7ed4093a SC |
106 | } |
107 | ||
bbc8d484 | 108 | |
7ed4093a | 109 | static bfd_target * |
bbc8d484 | 110 | b_out_object_p (abfd) |
7ed4093a SC |
111 | bfd *abfd; |
112 | { | |
87059abb | 113 | struct internal_exec anexec; |
bbc8d484 | 114 | struct external_exec exec_bytes; |
7ed4093a | 115 | |
bbc8d484 JG |
116 | if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd) |
117 | != EXEC_BYTES_SIZE) { | |
118 | bfd_error = wrong_format; | |
7ed4093a SC |
119 | return 0; |
120 | } | |
121 | ||
bbc8d484 | 122 | anexec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info); |
7ed4093a SC |
123 | |
124 | if (N_BADMAG (anexec)) { | |
125 | bfd_error = wrong_format; | |
126 | return 0; | |
127 | } | |
bbc8d484 JG |
128 | |
129 | bout_swap_exec_header_in (abfd, &exec_bytes, &anexec); | |
130 | return aout_32_some_aout_object_p (abfd, &anexec, b_out_callback); | |
7ed4093a SC |
131 | } |
132 | ||
bbc8d484 | 133 | |
7ed4093a SC |
134 | /* Finish up the opening of a b.out file for reading. Fill in all the |
135 | fields that are not handled by common code. */ | |
136 | ||
137 | static bfd_target * | |
138 | b_out_callback (abfd) | |
139 | bfd *abfd; | |
140 | { | |
bbc8d484 | 141 | struct internal_exec *execp = exec_hdr (abfd); |
7ed4093a SC |
142 | unsigned long bss_start; |
143 | ||
7ed4093a | 144 | /* Architecture and machine type */ |
9e2dad8e JG |
145 | bfd_set_arch_mach(abfd, |
146 | bfd_arch_i960, /* B.out only used on i960 */ | |
147 | bfd_mach_i960_core /* Default */ | |
148 | ); | |
7ed4093a SC |
149 | |
150 | /* The positions of the string table and symbol table. */ | |
bbc8d484 JG |
151 | obj_str_filepos (abfd) = N_STROFF (*execp); |
152 | obj_sym_filepos (abfd) = N_SYMOFF (*execp); | |
7ed4093a SC |
153 | |
154 | /* The alignments of the sections */ | |
155 | obj_textsec (abfd)->alignment_power = execp->a_talign; | |
156 | obj_datasec (abfd)->alignment_power = execp->a_dalign; | |
157 | obj_bsssec (abfd)->alignment_power = execp->a_balign; | |
158 | ||
159 | /* The starting addresses of the sections. */ | |
bbc8d484 JG |
160 | obj_textsec (abfd)->vma = execp->a_tload; |
161 | obj_datasec (abfd)->vma = execp->a_dload; | |
162 | bss_start = execp->a_dload + execp->a_data; /* BSS = end of data section */ | |
163 | obj_bsssec (abfd)->vma = i960_align (bss_start, execp->a_balign); | |
7ed4093a SC |
164 | |
165 | /* The file positions of the sections */ | |
bbc8d484 JG |
166 | obj_textsec (abfd)->filepos = N_TXTOFF(*execp); |
167 | obj_datasec (abfd)->filepos = N_DATOFF(*execp); | |
7ed4093a SC |
168 | |
169 | /* The file positions of the relocation info */ | |
bbc8d484 JG |
170 | obj_textsec (abfd)->rel_filepos = N_TROFF(*execp); |
171 | obj_datasec (abfd)->rel_filepos = N_DROFF(*execp); | |
7ed4093a SC |
172 | |
173 | return abfd->xvec; | |
174 | } | |
175 | ||
bbc8d484 JG |
176 | struct container { |
177 | struct aoutdata a; | |
178 | struct internal_exec e; | |
179 | }; | |
7ed4093a SC |
180 | |
181 | static boolean | |
182 | b_out_mkobject (abfd) | |
183 | bfd *abfd; | |
184 | { | |
bbc8d484 | 185 | struct container *rawptr; |
7ed4093a | 186 | |
bbc8d484 JG |
187 | rawptr = (struct container *) bfd_zalloc (abfd, sizeof (struct container)); |
188 | if (rawptr == NULL) { | |
7ed4093a SC |
189 | bfd_error = no_memory; |
190 | return false; | |
191 | } | |
192 | ||
bbc8d484 JG |
193 | set_tdata (abfd, &rawptr->a); |
194 | exec_hdr (abfd) = &rawptr->e; | |
7ed4093a SC |
195 | |
196 | /* For simplicity's sake we just make all the sections right here. */ | |
197 | obj_textsec (abfd) = (asection *)NULL; | |
198 | obj_datasec (abfd) = (asection *)NULL; | |
199 | obj_bsssec (abfd) = (asection *)NULL; | |
200 | ||
201 | bfd_make_section (abfd, ".text"); | |
202 | bfd_make_section (abfd, ".data"); | |
203 | bfd_make_section (abfd, ".bss"); | |
204 | ||
205 | return true; | |
206 | } | |
207 | ||
208 | static boolean | |
209 | b_out_write_object_contents (abfd) | |
210 | bfd *abfd; | |
211 | { | |
bbc8d484 | 212 | struct external_exec swapped_hdr; |
7ed4093a | 213 | |
bbc8d484 | 214 | exec_hdr (abfd)->a_info = BMAGIC; |
7ed4093a SC |
215 | |
216 | exec_hdr (abfd)->a_text = obj_textsec (abfd)->size; | |
217 | exec_hdr (abfd)->a_data = obj_datasec (abfd)->size; | |
218 | exec_hdr (abfd)->a_bss = obj_bsssec (abfd)->size; | |
219 | exec_hdr (abfd)->a_syms = bfd_get_symcount (abfd) * sizeof (struct nlist); | |
220 | exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd); | |
221 | exec_hdr (abfd)->a_trsize = ((obj_textsec (abfd)->reloc_count) * | |
222 | sizeof (struct relocation_info)); | |
223 | exec_hdr (abfd)->a_drsize = ((obj_datasec (abfd)->reloc_count) * | |
224 | sizeof (struct relocation_info)); | |
225 | ||
226 | exec_hdr (abfd)->a_talign = obj_textsec (abfd)->alignment_power; | |
227 | exec_hdr (abfd)->a_dalign = obj_datasec (abfd)->alignment_power; | |
228 | exec_hdr (abfd)->a_balign = obj_bsssec (abfd)->alignment_power; | |
229 | ||
230 | exec_hdr (abfd)->a_tload = obj_textsec (abfd)->vma; | |
231 | exec_hdr (abfd)->a_dload = obj_datasec (abfd)->vma; | |
232 | ||
bbc8d484 | 233 | bout_swap_exec_header_out (abfd, exec_hdr (abfd), &swapped_hdr); |
7ed4093a SC |
234 | |
235 | bfd_seek (abfd, 0L, SEEK_SET); | |
bbc8d484 | 236 | bfd_write ((PTR) &swapped_hdr, 1, EXEC_BYTES_SIZE, abfd); |
7ed4093a SC |
237 | |
238 | /* Now write out reloc info, followed by syms and strings */ | |
239 | if (bfd_get_symcount (abfd) != 0) | |
240 | { | |
241 | bfd_seek (abfd, | |
242 | (long)(N_SYMOFF(*exec_hdr(abfd))), SEEK_SET); | |
243 | ||
f4d2c0bb | 244 | aout_32_write_syms (abfd); |
7ed4093a SC |
245 | |
246 | bfd_seek (abfd, (long)(N_TROFF(*exec_hdr(abfd))), SEEK_SET); | |
247 | ||
248 | if (!b_out_squirt_out_relocs (abfd, obj_textsec (abfd))) return false; | |
249 | bfd_seek (abfd, (long)(N_DROFF(*exec_hdr(abfd))), SEEK_SET); | |
250 | ||
251 | if (!b_out_squirt_out_relocs (abfd, obj_datasec (abfd))) return false; | |
252 | } | |
253 | return true; | |
254 | } | |
7ed4093a SC |
255 | \f |
256 | /** Some reloc hackery */ | |
257 | ||
258 | #define CALLS 0x66003800 /* Template for 'calls' instruction */ | |
259 | #define BAL 0x0b000000 /* Template for 'bal' instruction */ | |
260 | #define BAL_MASK 0x00ffffff | |
261 | ||
9e2dad8e | 262 | static bfd_reloc_status_type |
7ed4093a SC |
263 | callj_callback(abfd, reloc_entry, symbol_in, data, input_section) |
264 | bfd *abfd; | |
265 | arelent *reloc_entry; | |
266 | asymbol *symbol_in; | |
267 | unsigned char *data; | |
268 | asection *input_section; | |
269 | { | |
270 | int word = bfd_get_32(abfd, data+reloc_entry->address); | |
271 | aout_symbol_type *symbol = aout_symbol(symbol_in); | |
272 | ||
273 | if (IS_OTHER(symbol->other)) { | |
274 | /* Call to a system procedure - replace code with system | |
275 | procedure number | |
276 | */ | |
277 | ||
278 | word = CALLS | (symbol->other - 1); | |
279 | bfd_put_32(abfd, word, data+reloc_entry->address); /* replace */ | |
280 | return bfd_reloc_ok; | |
281 | } | |
282 | ||
283 | if (IS_CALLNAME(symbol->other)) { | |
284 | aout_symbol_type *balsym = symbol+1; | |
285 | /* The next symbol should be an N_BALNAME */ | |
286 | BFD_ASSERT(IS_BALNAME(balsym->other)); | |
287 | ||
288 | /* We are calling a leaf - so replace the call instruction | |
289 | with a bal */ | |
290 | ||
291 | word = BAL | | |
292 | (((word & BAL_MASK) + | |
293 | balsym->symbol.section->output_offset + | |
294 | balsym->symbol.section->output_section->vma+ | |
295 | balsym->symbol.value + reloc_entry->addend - | |
296 | ( input_section->output_section->vma + input_section->output_offset)) | |
297 | & BAL_MASK); | |
298 | ||
299 | bfd_put_32(abfd, word, data+reloc_entry->address); /* replace */ | |
300 | return bfd_reloc_ok; | |
301 | } | |
302 | return bfd_reloc_continue; | |
303 | ||
304 | } | |
305 | /* type rshift size bitsize pcrel bitpos absolute overflow check*/ | |
306 | ||
307 | ||
308 | static reloc_howto_type howto_reloc_callj = | |
309 | HOWTO( 3, 0, 2, 24, true, 0, true, true, callj_callback,"callj", true, 0x00ffffff, 0x00ffffff,false); | |
310 | static reloc_howto_type howto_reloc_abs32 = | |
311 | HOWTO(1, 0, 2, 32, false, 0, true, true,0,"abs32", true, 0xffffffff,0xffffffff,false); | |
312 | static reloc_howto_type howto_reloc_pcrel24 = | |
313 | HOWTO(2, 0, 2, 24, true, 0, true, true,0,"pcrel24", true, 0x00ffffff,0x00ffffff,false); | |
314 | ||
315 | /* Allocate enough room for all the reloc entries, plus pointers to them all */ | |
316 | ||
317 | static boolean | |
318 | b_out_slurp_reloc_table (abfd, asect, symbols) | |
319 | bfd *abfd; | |
320 | sec_ptr asect; | |
321 | asymbol **symbols; | |
322 | { | |
323 | unsigned int count; | |
324 | size_t reloc_size; | |
325 | struct relocation_info *relocs; | |
326 | arelent *reloc_cache; | |
327 | ||
328 | if (asect->relocation) return true; | |
f4d2c0bb | 329 | if (!aout_32_slurp_symbol_table (abfd)) return false; |
7ed4093a SC |
330 | |
331 | if (asect == obj_datasec (abfd)) { | |
332 | reloc_size = exec_hdr(abfd)->a_drsize; | |
333 | goto doit; | |
334 | } | |
335 | ||
336 | if (asect == obj_textsec (abfd)) { | |
337 | reloc_size = exec_hdr(abfd)->a_trsize; | |
338 | goto doit; | |
339 | } | |
340 | ||
341 | bfd_error = invalid_operation; | |
342 | return false; | |
343 | ||
344 | doit: | |
345 | bfd_seek (abfd, (long)(asect->rel_filepos), SEEK_SET); | |
346 | count = reloc_size / sizeof (struct relocation_info); | |
347 | ||
348 | relocs = (struct relocation_info *) malloc (reloc_size); | |
349 | if (!relocs) { | |
350 | bfd_error = no_memory; | |
351 | return false; | |
352 | } | |
353 | reloc_cache = (arelent *) malloc ((count+1) * sizeof (arelent)); | |
354 | if (!reloc_cache) { | |
355 | free ((char*)relocs); | |
356 | bfd_error = no_memory; | |
357 | return false; | |
358 | } | |
359 | ||
360 | if (bfd_read ((PTR) relocs, 1, reloc_size, abfd) != reloc_size) { | |
361 | bfd_error = system_call_error; | |
362 | free (reloc_cache); | |
363 | free (relocs); | |
364 | return false; | |
365 | } | |
366 | ||
367 | { | |
368 | register struct relocation_info *rptr = relocs; | |
369 | unsigned int counter = 0; | |
370 | arelent *cache_ptr = reloc_cache; | |
371 | int extern_mask, pcrel_mask, callj_mask; | |
372 | ||
373 | if (abfd->xvec->header_byteorder_big_p) { | |
374 | /* Big-endian bit field allocation order */ | |
375 | pcrel_mask = 0x80; | |
376 | extern_mask = 0x10; | |
377 | callj_mask = 0x02; | |
378 | } else { | |
379 | /* Little-endian bit field allocation order */ | |
380 | pcrel_mask = 0x01; | |
381 | extern_mask = 0x08; | |
382 | callj_mask = 0x40; | |
383 | } | |
384 | ||
385 | for (; counter < count; counter++, rptr++, cache_ptr++) | |
386 | { | |
387 | unsigned char *raw = (unsigned char *)rptr; | |
388 | unsigned int symnum; | |
389 | cache_ptr->address = bfd_h_get_32 (abfd, raw + 0); | |
390 | if (abfd->xvec->header_byteorder_big_p) { | |
391 | symnum = (raw[4] << 16) | (raw[5] << 8) | raw[6]; | |
392 | } else { | |
393 | symnum = (raw[6] << 16) | (raw[5] << 8) | raw[4]; | |
394 | } | |
395 | ||
396 | if (raw[7] & extern_mask) { | |
397 | /* If this is set then the r_index is a index into the symbol table; | |
398 | * if the bit is not set then r_index contains a section map. | |
399 | * We either fill in the sym entry with a pointer to the symbol, | |
400 | * or point to the correct section | |
401 | */ | |
402 | cache_ptr->sym_ptr_ptr = symbols + symnum; | |
403 | cache_ptr->addend = 0; | |
404 | cache_ptr->section = (asection*)NULL; | |
405 | } else { | |
406 | /* In a.out symbols are relative to the beginning of the | |
407 | * file rather than sections ? | |
408 | * (look in translate_from_native_sym_flags) | |
409 | * The reloc entry addend has added to it the offset into the | |
410 | * file of the data, so subtract the base to make the reloc | |
411 | * section relative */ | |
412 | cache_ptr->sym_ptr_ptr = (asymbol **)NULL; | |
413 | switch (symnum) { | |
414 | case N_TEXT: | |
415 | case N_TEXT | N_EXT: | |
416 | cache_ptr->section = obj_textsec(abfd); | |
417 | cache_ptr->addend = -obj_textsec(abfd)->vma; | |
418 | break; | |
419 | case N_DATA: | |
420 | case N_DATA | N_EXT: | |
421 | cache_ptr->section = obj_datasec(abfd); | |
422 | cache_ptr->addend = - obj_datasec(abfd)->vma; | |
423 | break; | |
424 | case N_BSS: | |
425 | case N_BSS | N_EXT: | |
426 | cache_ptr->section = obj_bsssec(abfd); | |
427 | cache_ptr->addend = - obj_bsssec(abfd)->vma; | |
428 | break; | |
429 | case N_ABS: | |
430 | case N_ABS | N_EXT: | |
431 | BFD_ASSERT(0); | |
432 | break; | |
433 | default: | |
434 | BFD_ASSERT(0); | |
435 | break; | |
436 | } | |
437 | ||
438 | } | |
439 | ||
440 | /* The i960 only has a few relocation types: | |
441 | abs 32-bit and pcrel 24bit. Except for callj's! */ | |
442 | if (raw[7] & callj_mask) | |
443 | cache_ptr->howto = &howto_reloc_callj; | |
444 | else if ( raw[7] & pcrel_mask) | |
445 | cache_ptr->howto = &howto_reloc_pcrel24; | |
446 | else | |
447 | cache_ptr->howto = &howto_reloc_abs32; | |
448 | } | |
449 | } | |
450 | ||
451 | free (relocs); | |
452 | asect->relocation = reloc_cache; | |
453 | asect->reloc_count = count; | |
454 | return true; | |
455 | } | |
456 | ||
457 | ||
458 | static boolean | |
459 | b_out_squirt_out_relocs (abfd, section) | |
460 | bfd *abfd; | |
461 | asection *section; | |
462 | { | |
463 | arelent **generic; | |
464 | ||
465 | unsigned int count = section->reloc_count; | |
466 | struct relocation_info *native, *natptr; | |
467 | size_t natsize = count * sizeof (struct relocation_info); | |
468 | int extern_mask, pcrel_mask, len_2, callj_mask; | |
469 | if (count == 0) return true; | |
470 | generic = section->orelocation; | |
471 | native = ((struct relocation_info *) malloc (natsize)); | |
472 | if (!native) { | |
473 | bfd_error = no_memory; | |
474 | return false; | |
475 | } | |
476 | ||
477 | if (abfd->xvec->header_byteorder_big_p) { | |
478 | /* Big-endian bit field allocation order */ | |
479 | pcrel_mask = 0x80; | |
480 | extern_mask = 0x10; | |
481 | len_2 = 0x40; | |
482 | callj_mask = 0x02; | |
483 | } else { | |
484 | /* Little-endian bit field allocation order */ | |
485 | pcrel_mask = 0x01; | |
486 | extern_mask = 0x08; | |
487 | len_2 = 0x04; | |
488 | callj_mask = 0x40; | |
489 | } | |
490 | ||
491 | for (natptr = native; count > 0; --count, ++natptr, ++generic) | |
492 | { | |
493 | arelent *g = *generic; | |
494 | unsigned char *raw = (unsigned char *)natptr; | |
495 | unsigned int symnum; | |
496 | ||
497 | bfd_h_put_32(abfd, g->address, raw); | |
498 | /* Find a type in the output format which matches the input howto - | |
499 | * at the moment we assume input format == output format FIXME!! | |
500 | */ | |
501 | /* FIXME: Need callj stuff here, and to check the howto entries to | |
502 | be sure they are real for this architecture. */ | |
503 | if (g->howto== &howto_reloc_callj) { | |
504 | raw[7] = callj_mask + pcrel_mask + len_2; | |
505 | } | |
506 | else if (g->howto == &howto_reloc_pcrel24) { | |
507 | raw[7] = pcrel_mask +len_2; | |
508 | } | |
509 | else { | |
510 | raw[7] = len_2; | |
511 | } | |
512 | if (g->sym_ptr_ptr != (asymbol **)NULL) | |
513 | { | |
514 | /* name clobbered by aout_write_syms to be symbol index*/ | |
515 | if ((*(g->sym_ptr_ptr))->section) { | |
516 | /* replace the section offset into the addent */ | |
517 | g->addend += (*(g->sym_ptr_ptr))->section->vma ; | |
518 | } | |
519 | symnum = stoi((*(g->sym_ptr_ptr))->name); | |
520 | raw[7] |= extern_mask; | |
521 | BFD_ASSERT(g->addend == 0); | |
522 | } | |
523 | else { | |
524 | if (g->section == (asection *)NULL) { | |
525 | symnum = N_ABS; | |
526 | BFD_ASSERT(0); | |
527 | } | |
528 | else if(g->section->output_section == obj_textsec(abfd)) { | |
529 | symnum = N_TEXT; | |
87059abb | 530 | BFD_ASSERT(g->addend + obj_textsec(abfd)->vma == 0); |
7ed4093a SC |
531 | } |
532 | else if (g->section->output_section == obj_datasec(abfd)) { | |
533 | symnum = N_DATA; | |
87059abb | 534 | BFD_ASSERT(g->addend + obj_datasec(abfd)->vma == 0); |
7ed4093a SC |
535 | } |
536 | else if (g->section->output_section == obj_bsssec(abfd)) { | |
537 | symnum = N_BSS; | |
87059abb | 538 | BFD_ASSERT(g->addend + obj_bsssec(abfd)->vma == 0); |
7ed4093a SC |
539 | } |
540 | else { | |
541 | BFD_ASSERT(0); | |
fb3be09b | 542 | symnum = N_ABS; |
7ed4093a SC |
543 | } |
544 | } | |
545 | if (abfd->xvec->header_byteorder_big_p) { | |
546 | raw[4] = (unsigned char) (symnum >> 16); | |
547 | raw[5] = (unsigned char) (symnum >> 8); | |
548 | raw[6] = (unsigned char) (symnum ); | |
549 | } else { | |
550 | raw[6] = (unsigned char) (symnum >> 16); | |
551 | raw[5] = (unsigned char) (symnum >> 8); | |
552 | raw[4] = (unsigned char) (symnum ); | |
553 | } | |
554 | } | |
555 | ||
fb3be09b | 556 | if (bfd_write ((PTR) native, 1, natsize, abfd) != natsize) { |
7ed4093a SC |
557 | free((PTR)native); |
558 | return false; | |
559 | } | |
560 | free ((PTR)native); | |
561 | ||
562 | return true; | |
563 | } | |
564 | ||
565 | /* This is stupid. This function should be a boolean predicate */ | |
566 | static unsigned int | |
567 | b_out_canonicalize_reloc (abfd, section, relptr, symbols) | |
568 | bfd *abfd; | |
569 | sec_ptr section; | |
570 | arelent **relptr; | |
571 | asymbol **symbols; | |
572 | { | |
573 | arelent *tblptr = section->relocation; | |
574 | unsigned int count = 0; | |
575 | ||
576 | if (!(tblptr || b_out_slurp_reloc_table (abfd, section, symbols))) return 0; | |
577 | tblptr = section->relocation; | |
578 | if (!tblptr) return 0; | |
579 | ||
580 | for (; count++ < section->reloc_count;) | |
581 | *relptr++ = tblptr++; | |
582 | ||
583 | *relptr = 0; | |
584 | ||
585 | return section->reloc_count; | |
586 | } | |
587 | ||
588 | static unsigned int | |
589 | b_out_get_reloc_upper_bound (abfd, asect) | |
590 | bfd *abfd; | |
591 | sec_ptr asect; | |
592 | { | |
593 | if (bfd_get_format (abfd) != bfd_object) { | |
594 | bfd_error = invalid_operation; | |
595 | return 0; | |
596 | } | |
597 | ||
598 | if (asect == obj_datasec (abfd)) | |
599 | return (sizeof (arelent *) * | |
600 | ((exec_hdr(abfd)->a_drsize / sizeof (struct relocation_info)) | |
601 | +1)); | |
602 | ||
603 | if (asect == obj_textsec (abfd)) | |
604 | return (sizeof (arelent *) * | |
605 | ((exec_hdr(abfd)->a_trsize / sizeof (struct relocation_info)) | |
606 | +1)); | |
607 | ||
608 | bfd_error = invalid_operation; | |
609 | return 0; | |
610 | } | |
611 | \f | |
612 | static boolean | |
613 | b_out_set_section_contents (abfd, section, location, offset, count) | |
614 | bfd *abfd; | |
615 | sec_ptr section; | |
616 | unsigned char *location; | |
617 | file_ptr offset; | |
618 | int count; | |
619 | { | |
620 | if (abfd->output_has_begun == false) { /* set by bfd.c handler */ | |
621 | if ((obj_textsec (abfd) == NULL) || (obj_datasec (abfd) == NULL) /*|| | |
622 | (obj_textsec (abfd)->size == 0) || (obj_datasec (abfd)->size == 0)*/) { | |
623 | bfd_error = invalid_operation; | |
624 | return false; | |
625 | } | |
626 | ||
87059abb | 627 | obj_textsec (abfd)->filepos = sizeof(struct internal_exec); |
7ed4093a SC |
628 | obj_datasec(abfd)->filepos = obj_textsec(abfd)->filepos |
629 | + obj_textsec (abfd)->size; | |
630 | ||
631 | } | |
632 | /* regardless, once we know what we're doing, we might as well get going */ | |
633 | bfd_seek (abfd, section->filepos + offset, SEEK_SET); | |
634 | ||
635 | if (count != 0) { | |
636 | return (bfd_write ((PTR)location, 1, count, abfd) == count) ?true:false; | |
637 | } | |
638 | return false; | |
639 | } | |
640 | ||
641 | static boolean | |
642 | b_out_set_arch_mach (abfd, arch, machine) | |
643 | bfd *abfd; | |
644 | enum bfd_architecture arch; | |
645 | unsigned long machine; | |
646 | { | |
9e2dad8e JG |
647 | bfd_default_set_arch_mach(abfd, arch, machine); |
648 | ||
7ed4093a SC |
649 | if (arch == bfd_arch_unknown) /* Unknown machine arch is OK */ |
650 | return true; | |
651 | if (arch == bfd_arch_i960) /* i960 default is OK */ | |
652 | switch (machine) { | |
653 | case bfd_mach_i960_core: | |
654 | case bfd_mach_i960_kb_sb: | |
655 | case bfd_mach_i960_mc: | |
656 | case bfd_mach_i960_xa: | |
657 | case bfd_mach_i960_ca: | |
658 | case bfd_mach_i960_ka_sa: | |
3a278e04 | 659 | case 0: |
7ed4093a SC |
660 | return true; |
661 | default: | |
662 | return false; | |
663 | } | |
664 | ||
665 | return false; | |
666 | } | |
667 | ||
668 | static int | |
fb3be09b JG |
669 | DEFUN(b_out_sizeof_headers,(ignore_abfd, ignore), |
670 | bfd *ignore_abfd AND | |
671 | boolean ignore) | |
7ed4093a | 672 | { |
3a278e04 | 673 | return sizeof(struct internal_exec); |
7ed4093a | 674 | } |
87059abb SC |
675 | |
676 | ||
677 | ||
678 | ||
7ed4093a SC |
679 | /* Build the transfer vectors for Big and Little-Endian B.OUT files. */ |
680 | ||
681 | /* We don't have core files. */ | |
87059abb SC |
682 | #define aout_32_core_file_failing_command _bfd_dummy_core_file_failing_command |
683 | #define aout_32_core_file_failing_signal _bfd_dummy_core_file_failing_signal | |
684 | #define aout_32_core_file_matches_executable_p \ | |
7ed4093a SC |
685 | _bfd_dummy_core_file_matches_executable_p |
686 | ||
687 | /* We use BSD-Unix generic archive files. */ | |
87059abb SC |
688 | #define aout_32_openr_next_archived_file bfd_generic_openr_next_archived_file |
689 | #define aout_32_generic_stat_arch_elt bfd_generic_stat_arch_elt | |
690 | #define aout_32_slurp_armap bfd_slurp_bsd_armap | |
691 | #define aout_32_slurp_extended_name_table bfd_true | |
692 | #define aout_32_write_armap bsd_write_armap | |
693 | #define aout_32_truncate_arname bfd_bsd_truncate_arname | |
7ed4093a SC |
694 | |
695 | /* We override these routines from the usual a.out file routines. */ | |
fb3be09b | 696 | #define aout_32_canonicalize_reloc b_out_canonicalize_reloc |
87059abb SC |
697 | #define aout_32_get_reloc_upper_bound b_out_get_reloc_upper_bound |
698 | #define aout_32_set_section_contents b_out_set_section_contents | |
699 | #define aout_32_set_arch_mach b_out_set_arch_mach | |
700 | #define aout_32_sizeof_headers b_out_sizeof_headers | |
701 | ||
702 | #define aout_32_bfd_debug_info_start bfd_void | |
703 | #define aout_32_bfd_debug_info_end bfd_void | |
704 | #define aout_32_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void | |
7ed4093a SC |
705 | |
706 | ||
707 | bfd_target b_out_vec_big_host = | |
708 | { | |
709 | "b.out.big", /* name */ | |
9e2dad8e | 710 | bfd_target_aout_flavour, |
7ed4093a SC |
711 | false, /* data byte order is little */ |
712 | true, /* hdr byte order is big */ | |
713 | (HAS_RELOC | EXEC_P | /* object flags */ | |
714 | HAS_LINENO | HAS_DEBUG | | |
715 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT ), | |
716 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
717 | ' ', /* ar_pad_char */ | |
718 | 16, /* ar_max_namelen */ | |
87059abb | 719 | 2, /* minumum alignment power */ |
7ed4093a SC |
720 | |
721 | _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */ | |
722 | _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */ | |
bbc8d484 | 723 | {_bfd_dummy_target, b_out_object_p, /* bfd_check_format */ |
7ed4093a SC |
724 | bfd_generic_archive_p, _bfd_dummy_target}, |
725 | {bfd_false, b_out_mkobject, /* bfd_set_format */ | |
726 | _bfd_generic_mkarchive, bfd_false}, | |
727 | {bfd_false, b_out_write_object_contents, /* bfd_write_contents */ | |
728 | _bfd_write_archive_contents, bfd_false}, | |
729 | ||
87059abb | 730 | JUMP_TABLE(aout_32) |
7ed4093a SC |
731 | }; |
732 | ||
733 | ||
734 | bfd_target b_out_vec_little_host = | |
735 | { | |
736 | "b.out.little", /* name */ | |
9e2dad8e | 737 | bfd_target_aout_flavour, |
7ed4093a SC |
738 | false, /* data byte order is little */ |
739 | false, /* header byte order is little */ | |
740 | (HAS_RELOC | EXEC_P | /* object flags */ | |
741 | HAS_LINENO | HAS_DEBUG | | |
742 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT ), | |
743 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
744 | ' ', /* ar_pad_char */ | |
745 | 16, /* ar_max_namelen */ | |
87059abb | 746 | 2, /* minum align */ |
7ed4093a SC |
747 | _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */ |
748 | _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */ | |
749 | ||
bbc8d484 | 750 | {_bfd_dummy_target, b_out_object_p, /* bfd_check_format */ |
7ed4093a SC |
751 | bfd_generic_archive_p, _bfd_dummy_target}, |
752 | {bfd_false, b_out_mkobject, /* bfd_set_format */ | |
753 | _bfd_generic_mkarchive, bfd_false}, | |
754 | {bfd_false, b_out_write_object_contents, /* bfd_write_contents */ | |
755 | _bfd_write_archive_contents, bfd_false}, | |
87059abb | 756 | JUMP_TABLE(aout_32) |
7ed4093a | 757 | }; |