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2004-05-17 Randolph Chung <[email protected]>
[binutils.git] / bfd / aout-tic30.c
CommitLineData
252b5132 1/* BFD back-end for TMS320C30 a.out binaries.
72adc230
AM		 2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004
3 Free Software Foundation, Inc.
252b5132
RH		 4 Contributed by Steven Haworth ([email protected])
5
6 This file is part of BFD, the Binary File Descriptor library.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
21 02111-1307, USA. */
22
23#define TARGET_IS_BIG_ENDIAN_P
24#define N_HEADER_IN_TEXT(x) 1
252b5132
RH		 25#define TEXT_START_ADDR 1024
26#define TARGET_PAGE_SIZE 128
27#define SEGMENT_SIZE TARGET_PAGE_SIZE
28#define DEFAULT_ARCH bfd_arch_tic30
29#define ARCH_SIZE 32
30
e43d48cc
AM		 31/* Do not "beautify" the CONCAT* macro args. Traditional C will not
32 remove whitespace added here, and thus will fail to concatenate
33 the tokens. */
34#define MY(OP) CONCAT2 (tic30_aout_,OP)
252b5132 35#define TARGETNAME "a.out-tic30"
e43d48cc 36#define NAME(x,y) CONCAT3 (tic30_aout,_32_,y)
252b5132
RH		 37
38#include "bfd.h"
39#include "sysdep.h"
40#include "libaout.h"
41
42#include "aout/aout64.h"
43#include "aout/stab_gnu.h"
44#include "aout/ar.h"
45
46static bfd_reloc_status_type tic30_aout_fix_16
47 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
48static bfd_reloc_status_type tic30_aout_fix_32
49 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
50static bfd_reloc_status_type tic30_aout_fix_pcrel_16
51 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
52static reloc_howto_type *tic30_aout_reloc_howto
53 PARAMS ((bfd *, struct reloc_std_external *, int *, int *, int *));
54static bfd_reloc_status_type tic30_aout_relocate_contents
55 PARAMS ((reloc_howto_type *, bfd *, bfd_vma, bfd_byte *));
56static bfd_reloc_status_type tic30_aout_final_link_relocate
57 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, bfd_vma,
58 bfd_vma, bfd_vma));
b34976b6
AM		 59static const bfd_target *tic30_aout_object_p
60 PARAMS ((bfd *));
61static bfd_boolean tic30_aout_write_object_contents
62 PARAMS ((bfd *));
63static bfd_boolean tic30_aout_set_sizes
64 PARAMS ((bfd *));
65static const bfd_target * tic30_aout_callback
66 PARAMS ((bfd *));
67static bfd_boolean MY_bfd_copy_private_section_data
dc810e39 68 PARAMS ((bfd *, asection *, bfd *, asection *));
b34976b6
AM		 69static bfd_boolean MY_bfd_final_link
70 PARAMS ((bfd *, struct bfd_link_info *));
dc810e39
AM		 71reloc_howto_type * tic30_aout_reloc_type_lookup
72 PARAMS ((bfd *, bfd_reloc_code_real_type));
73enum machine_type tic30_aout_machine_type
b34976b6
AM		 74 PARAMS ((enum bfd_architecture, unsigned long, bfd_boolean *));
75bfd_boolean tic30_aout_set_arch_mach
dc810e39
AM		 76 PARAMS ((bfd *, enum bfd_architecture, unsigned long));
77
78#define MY_reloc_howto(BFD, REL, IN, EX, PC) \
79 tic30_aout_reloc_howto(BFD, REL, &IN, &EX, &PC)
252b5132
RH		 80#define MY_final_link_relocate tic30_aout_final_link_relocate
81#define MY_object_p tic30_aout_object_p
82#define MY_mkobject NAME(aout,mkobject)
83#define MY_write_object_contents tic30_aout_write_object_contents
84#define MY_set_sizes tic30_aout_set_sizes
85
86#ifndef MY_exec_hdr_flags
87#define MY_exec_hdr_flags 1
88#endif
89
90#ifndef MY_backend_data
91
92#ifndef MY_zmagic_contiguous
93#define MY_zmagic_contiguous 0
94#endif
95#ifndef MY_text_includes_header
96#define MY_text_includes_header 0
97#endif
98#ifndef MY_entry_is_text_address
99#define MY_entry_is_text_address 0
100#endif
101#ifndef MY_exec_header_not_counted
102#define MY_exec_header_not_counted 1
103#endif
104#ifndef MY_add_dynamic_symbols
105#define MY_add_dynamic_symbols 0
106#endif
107#ifndef MY_add_one_symbol
108#define MY_add_one_symbol 0
109#endif
110#ifndef MY_link_dynamic_object
111#define MY_link_dynamic_object 0
112#endif
113#ifndef MY_write_dynamic_symbol
114#define MY_write_dynamic_symbol 0
115#endif
116#ifndef MY_check_dynamic_reloc
117#define MY_check_dynamic_reloc 0
118#endif
119#ifndef MY_finish_dynamic_link
120#define MY_finish_dynamic_link 0
121#endif
122
dc810e39 123static const struct aout_backend_data tic30_aout_backend_data =
252b5132
RH		 124{
125 MY_zmagic_contiguous,
126 MY_text_includes_header,
127 MY_entry_is_text_address,
128 MY_exec_hdr_flags,
129 0, /* text vma? */
130 MY_set_sizes,
131 MY_exec_header_not_counted,
132 MY_add_dynamic_symbols,
133 MY_add_one_symbol,
134 MY_link_dynamic_object,
135 MY_write_dynamic_symbol,
136 MY_check_dynamic_reloc,
137 MY_finish_dynamic_link
138};
139#define MY_backend_data &tic30_aout_backend_data
140#endif
141
142/* FIXME: This is wrong. aoutx.h should really only be included by
143 aout32.c. */
144
145#include "aoutx.h"
146
147/* This table lists the relocation types for the TMS320C30. There are
148 only a few relocations required, and all must be divided by 4 (>>
149 2) to get the 32-bit addresses in the format the TMS320C30 likes
c4dfa77f 150 it. */
252b5132 151reloc_howto_type tic30_aout_howto_table[] =
1725a96e
NC		 152 {
153 EMPTY_HOWTO (-1),
b34976b6
AM		 154 HOWTO (1, 2, 1, 16, FALSE, 0, 0, tic30_aout_fix_16,
155 "16", FALSE, 0x0000FFFF, 0x0000FFFF, FALSE),
156 HOWTO (2, 2, 2, 24, FALSE, 0, complain_overflow_bitfield, NULL,
157 "24", FALSE, 0x00FFFFFF, 0x00FFFFFF, FALSE),
158 HOWTO (3, 18, 3, 24, FALSE, 0, complain_overflow_bitfield, NULL,
159 "LDP", FALSE, 0x00FF0000, 0x000000FF, FALSE),
160 HOWTO (4, 2, 4, 32, FALSE, 0, complain_overflow_bitfield, tic30_aout_fix_32,
161 "32", FALSE, 0xFFFFFFFF, 0xFFFFFFFF, FALSE),
162 HOWTO (5, 2, 1, 16, TRUE, 0, complain_overflow_signed,
163 tic30_aout_fix_pcrel_16, "PCREL", TRUE, 0x0000FFFF, 0x0000FFFF, TRUE),
1725a96e
NC		 164 EMPTY_HOWTO (-1),
165 EMPTY_HOWTO (-1),
166 EMPTY_HOWTO (-1),
167 EMPTY_HOWTO (-1),
168 EMPTY_HOWTO (-1)
169 };
170
171extern reloc_howto_type *NAME (aout, reloc_type_lookup)
b34976b6 172 PARAMS ((bfd *, bfd_reloc_code_real_type));
252b5132
RH		 173
174reloc_howto_type *
175tic30_aout_reloc_type_lookup (abfd, code)
5f771d47 176 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH		 177 bfd_reloc_code_real_type code;
178{
179 switch (code)
180 {
181 case BFD_RELOC_8:
182 case BFD_RELOC_TIC30_LDP:
183 return &tic30_aout_howto_table[3];
184 case BFD_RELOC_16:
185 return &tic30_aout_howto_table[1];
186 case BFD_RELOC_24:
187 return &tic30_aout_howto_table[2];
188 case BFD_RELOC_16_PCREL:
189 return &tic30_aout_howto_table[5];
190 case BFD_RELOC_32:
191 return &tic30_aout_howto_table[4];
192 default:
193 return (reloc_howto_type *) NULL;
194 }
195}
196
197static reloc_howto_type *
198tic30_aout_reloc_howto (abfd, relocs, r_index, r_extern, r_pcrel)
199 bfd *abfd;
200 struct reloc_std_external *relocs;
201 int *r_index;
202 int *r_extern;
203 int *r_pcrel;
204{
205 unsigned int r_length;
206 unsigned int r_pcrel_done;
207 int index;
208
209 *r_pcrel = 0;
210 if (bfd_header_big_endian (abfd))
211 {
212 *r_index = ((relocs->r_index[0] << 16) | (relocs->r_index[1] << 8) | relocs->r_index[2]);
213 *r_extern = (0 != (relocs->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
214 r_pcrel_done = (0 != (relocs->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
215 r_length = ((relocs->r_type[0] & RELOC_STD_BITS_LENGTH_BIG) >> RELOC_STD_BITS_LENGTH_SH_BIG);
216 }
217 else
218 {
219 *r_index = ((relocs->r_index[2] << 16) | (relocs->r_index[1] << 8) | relocs->r_index[0]);
220 *r_extern = (0 != (relocs->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
221 r_pcrel_done = (0 != (relocs->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
222 r_length = ((relocs->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE) >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
223 }
224 index = r_length + 4 * r_pcrel_done;
225 return tic30_aout_howto_table + index;
226}
227
228/* This function is used as a callback for 16-bit relocs. This is
229 required for relocations between segments. A line in aoutx.h
230 requires that any relocations for the data section should point to
231 the end of the aligned text section, plus an offset. By default,
232 this does not happen, therefore this function takes care of
c4dfa77f 233 that. */
252b5132
RH		 234
235static bfd_reloc_status_type
236tic30_aout_fix_16 (abfd, reloc_entry, symbol, data, input_section, output_bfd, error_message)
237 bfd *abfd;
238 arelent *reloc_entry;
239 asymbol *symbol;
240 PTR data;
5f771d47 241 asection *input_section ATTRIBUTE_UNUSED;
252b5132 242 bfd *output_bfd;
5f771d47 243 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH		 244{
245 bfd_vma relocation;
246
c4dfa77f 247 /* Make sure that the symbol's section is defined. */
252b5132
RH		 248 if (symbol->section == &bfd_und_section && (symbol->flags & BSF_WEAK) == 0)
249 return output_bfd ? bfd_reloc_ok : bfd_reloc_undefined;
250 /* Get the size of the input section and turn it into the TMS320C30
c4dfa77f 251 32-bit address format. */
252b5132
RH		 252 relocation = (symbol->section->vma >> 2);
253 relocation += bfd_get_16 (abfd, (bfd_byte *) data + reloc_entry->address);
254 bfd_put_16 (abfd, relocation, (bfd_byte *) data + reloc_entry->address);
255 return bfd_reloc_ok;
256}
257
258/* This function does the same thing as tic30_aout_fix_16 except for 32
c4dfa77f 259 bit relocations. */
252b5132
RH		 260
261static bfd_reloc_status_type
262tic30_aout_fix_32 (abfd, reloc_entry, symbol, data, input_section,
263 output_bfd, error_message)
264 bfd *abfd;
265 arelent *reloc_entry;
266 asymbol *symbol;
267 PTR data;
5f771d47 268 asection *input_section ATTRIBUTE_UNUSED;
252b5132 269 bfd *output_bfd;
5f771d47 270 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH		 271{
272 bfd_vma relocation;
273
c4dfa77f 274 /* Make sure that the symbol's section is defined. */
252b5132
RH		 275 if (symbol->section == &bfd_und_section && (symbol->flags & BSF_WEAK) == 0)
276 return output_bfd ? bfd_reloc_ok : bfd_reloc_undefined;
277 /* Get the size of the input section and turn it into the TMS320C30
c4dfa77f 278 32-bit address format. */
252b5132
RH		 279 relocation = (symbol->section->vma >> 2);
280 relocation += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
281 bfd_put_32 (abfd, relocation, (bfd_byte *) data + reloc_entry->address);
282 return bfd_reloc_ok;
283}
284
285/* This function is used to work out pc-relative offsets for the
286 TMS320C30. The data already placed by md_pcrel_from within gas is
287 useless for a relocation, so we just get the offset value and place
288 a version of this within the object code.
289 tic30_aout_final_link_relocate will then calculate the required
c4dfa77f 290 relocation to add on to the value in the object code. */
252b5132
RH		 291
292static bfd_reloc_status_type
293tic30_aout_fix_pcrel_16 (abfd, reloc_entry, symbol, data, input_section,
294 output_bfd, error_message)
295 bfd *abfd;
296 arelent *reloc_entry;
5f771d47 297 asymbol *symbol ATTRIBUTE_UNUSED;
252b5132 298 PTR data;
5f771d47
ILT		 299 asection *input_section ATTRIBUTE_UNUSED;
300 bfd *output_bfd ATTRIBUTE_UNUSED;
301 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH		 302{
303 bfd_vma relocation = 1;
304 bfd_byte offset_data = bfd_get_8 (abfd, (bfd_byte *) data + reloc_entry->address - 1);
305
306 /* The byte before the location of the fix contains bits 23-16 of
307 the pcrel instruction. Bit 21 is set for a delayed instruction
c4dfa77f 308 which requires on offset of 3 instead of 1. */
252b5132
RH		 309 if (offset_data & 0x20)
310 relocation -= 3;
311 else
312 relocation -= 1;
313 bfd_put_16 (abfd, relocation, (bfd_byte *) data + reloc_entry->address);
314 return bfd_reloc_ok;
315}
316
317/* These macros will get 24-bit values from the bfd definition.
c4dfa77f 318 Big-endian only. */
beb0d161
KH		 319#define bfd_getb_24(BFD,ADDR) \
320 (bfd_get_8 (BFD, ADDR ) << 16) | \
321 (bfd_get_8 (BFD, ADDR + 1) << 8) | \
322 (bfd_get_8 (BFD, ADDR + 2) )
323
324#define bfd_putb_24(BFD,DATA,ADDR) \
325 bfd_put_8 (BFD, (bfd_byte) ((DATA >> 16) & 0xFF), ADDR ); \
326 bfd_put_8 (BFD, (bfd_byte) ((DATA >> 8) & 0xFF), ADDR + 1); \
327 bfd_put_8 (BFD, (bfd_byte) ( DATA & 0xFF), ADDR + 2)
252b5132
RH		 328
329/* Set parameters about this a.out file that are machine-dependent.
330 This routine is called from some_aout_object_p just before it returns. */
331
332static const bfd_target *
333tic30_aout_callback (abfd)
334 bfd *abfd;
335{
336 struct internal_exec *execp = exec_hdr (abfd);
337 unsigned int arch_align_power;
338 unsigned long arch_align;
339
1725a96e 340 /* Calculate the file positions of the parts of a newly read aout header. */
252b5132
RH		 341 obj_textsec (abfd)->_raw_size = N_TXTSIZE (*execp);
342
1725a96e 343 /* The virtual memory addresses of the sections. */
252b5132
RH		 344 obj_textsec (abfd)->vma = N_TXTADDR (*execp);
345 obj_datasec (abfd)->vma = N_DATADDR (*execp);
346 obj_bsssec (abfd)->vma = N_BSSADDR (*execp);
347
348 obj_textsec (abfd)->lma = obj_textsec (abfd)->vma;
349 obj_datasec (abfd)->lma = obj_datasec (abfd)->vma;
350 obj_bsssec (abfd)->lma = obj_bsssec (abfd)->vma;
351
1725a96e 352 /* The file offsets of the sections. */
252b5132
RH		 353 obj_textsec (abfd)->filepos = N_TXTOFF (*execp);
354 obj_datasec (abfd)->filepos = N_DATOFF (*execp);
355
1725a96e 356 /* The file offsets of the relocation info. */
252b5132
RH		 357 obj_textsec (abfd)->rel_filepos = N_TRELOFF (*execp);
358 obj_datasec (abfd)->rel_filepos = N_DRELOFF (*execp);
359
360 /* The file offsets of the string table and symbol table. */
361 obj_sym_filepos (abfd) = N_SYMOFF (*execp);
362 obj_str_filepos (abfd) = N_STROFF (*execp);
363
364 /* Determine the architecture and machine type of the object file. */
365#ifdef SET_ARCH_MACH
366 SET_ARCH_MACH (abfd, *execp);
367#else
dc810e39 368 bfd_default_set_arch_mach (abfd, DEFAULT_ARCH, 0L);
252b5132
RH		 369#endif
370
371 /* Now that we know the architecture, set the alignments of the
372 sections. This is normally done by NAME(aout,new_section_hook),
373 but when the initial sections were created the architecture had
374 not yet been set. However, for backward compatibility, we don't
375 set the alignment power any higher than as required by the size
376 of the section. */
377 arch_align_power = bfd_get_arch_info (abfd)->section_align_power;
378 arch_align = 1 << arch_align_power;
379 if ((BFD_ALIGN (obj_textsec (abfd)->_raw_size, arch_align)
380 == obj_textsec (abfd)->_raw_size)
381 && (BFD_ALIGN (obj_datasec (abfd)->_raw_size, arch_align)
382 == obj_datasec (abfd)->_raw_size)
383 && (BFD_ALIGN (obj_bsssec (abfd)->_raw_size, arch_align)
384 == obj_bsssec (abfd)->_raw_size))
385 {
386 obj_textsec (abfd)->alignment_power = arch_align_power;
387 obj_datasec (abfd)->alignment_power = arch_align_power;
388 obj_bsssec (abfd)->alignment_power = arch_align_power;
389 }
390 return abfd->xvec;
391}
392
393static bfd_reloc_status_type
394tic30_aout_final_link_relocate (howto, input_bfd, input_section, contents,
395 address, value, addend)
396 reloc_howto_type *howto;
397 bfd *input_bfd;
398 asection *input_section;
399 bfd_byte *contents;
400 bfd_vma address;
401 bfd_vma value;
402 bfd_vma addend;
403{
404 bfd_vma relocation;
405
406 if (address > input_section->_raw_size)
407 return bfd_reloc_outofrange;
408
409 relocation = value + addend;
410 if (howto->pc_relative)
411 {
412 relocation -= (input_section->output_section->vma + input_section->output_offset);
413 if (howto->pcrel_offset)
414 relocation -= address;
415 }
416 return tic30_aout_relocate_contents (howto, input_bfd, relocation,
417 contents + address);
418}
419
420bfd_reloc_status_type
421tic30_aout_relocate_contents (howto, input_bfd, relocation, location)
422 reloc_howto_type *howto;
423 bfd *input_bfd;
424 bfd_vma relocation;
425 bfd_byte *location;
426{
427 bfd_vma x;
b34976b6 428 bfd_boolean overflow;
252b5132
RH		 429
430 if (howto->size < 0)
431 relocation = -relocation;
432
433 switch (howto->size)
434 {
435 default:
436 case 0:
437 abort ();
438 break;
439 case 1:
440 x = bfd_get_16 (input_bfd, location);
441 break;
442 case 2:
443 x = bfd_getb_24 (input_bfd, location);
444 break;
445 case 3:
446 x = bfd_get_8 (input_bfd, location);
447 break;
448 case 4:
449 x = bfd_get_32 (input_bfd, location);
450 break;
451 }
1725a96e 452
b34976b6 453 overflow = FALSE;
1725a96e 454
252b5132
RH		 455 if (howto->complain_on_overflow != complain_overflow_dont)
456 {
457 bfd_vma check;
458 bfd_signed_vma signed_check;
459 bfd_vma add;
460 bfd_signed_vma signed_add;
461
462 if (howto->rightshift == 0)
463 {
464 check = relocation;
465 signed_check = (bfd_signed_vma) relocation;
466 }
467 else
468 {
469 check = relocation >> howto->rightshift;
470 if ((bfd_signed_vma) relocation >= 0)
471 signed_check = check;
472 else
473 signed_check = (check | ((bfd_vma) - 1 & ~((bfd_vma) - 1 >> howto->rightshift)));
474 }
475 add = x & howto->src_mask;
476 signed_add = add;
477 if ((add & (((~howto->src_mask) >> 1) & howto->src_mask)) != 0)
478 signed_add -= (((~howto->src_mask) >> 1) & howto->src_mask) << 1;
479 if (howto->bitpos == 0)
480 {
481 check += add;
482 signed_check += signed_add;
483 }
484 else
485 {
486 check += add >> howto->bitpos;
487 if (signed_add >= 0)
488 signed_check += add >> howto->bitpos;
489 else
490 signed_check += ((add >> howto->bitpos) | ((bfd_vma) - 1 & ~((bfd_vma) - 1 >> howto->bitpos)));
491 }
492 switch (howto->complain_on_overflow)
493 {
494 case complain_overflow_signed:
495 {
496 bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1;
497 bfd_signed_vma reloc_signed_min = ~reloc_signed_max;
498 if (signed_check > reloc_signed_max || signed_check < reloc_signed_min)
b34976b6 499 overflow = TRUE;
252b5132
RH		 500 }
501 break;
502 case complain_overflow_unsigned:
503 {
504 bfd_vma reloc_unsigned_max = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
505 if (check > reloc_unsigned_max)
b34976b6 506 overflow = TRUE;
252b5132
RH		 507 }
508 break;
509 case complain_overflow_bitfield:
510 {
511 bfd_vma reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
dc810e39
AM		 512 if ((check & ~reloc_bits) != 0
513 && (((bfd_vma) signed_check & ~reloc_bits)
514 != ((bfd_vma) -1 & ~reloc_bits)))
b34976b6 515 overflow = TRUE;
252b5132
RH		 516 }
517 break;
518 default:
519 abort ();
520 }
521 }
522 relocation >>= (bfd_vma) howto->rightshift;
523 relocation <<= (bfd_vma) howto->bitpos;
524 x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask));
525 switch (howto->size)
526 {
527 default:
528 case 0:
529 abort ();
530 break;
531 case 1:
532 bfd_put_16 (input_bfd, x, location);
533 break;
534 case 2:
535 bfd_putb_24 (input_bfd, x, location);
536 break;
537 case 3:
538 bfd_put_8 (input_bfd, x, location);
539 break;
540 case 4:
541 bfd_put_32 (input_bfd, x, location);
542 break;
543 }
544 return overflow ? bfd_reloc_overflow : bfd_reloc_ok;
545}
546
1725a96e 547/* Finish up the reading of an a.out file header. */
252b5132
RH		 548
549static const bfd_target *
550tic30_aout_object_p (abfd)
551 bfd *abfd;
552{
1725a96e
NC		 553 struct external_exec exec_bytes; /* Raw exec header from file. */
554 struct internal_exec exec; /* Cleaned-up exec header. */
252b5132 555 const bfd_target *target;
dc810e39 556 bfd_size_type amt = EXEC_BYTES_SIZE;
252b5132 557
dc810e39 558 if (bfd_bread ((PTR) &exec_bytes, amt, abfd) != amt)
252b5132
RH		 559 {
560 if (bfd_get_error () != bfd_error_system_call)
561 bfd_set_error (bfd_error_wrong_format);
562 return 0;
563 }
564
565#ifdef SWAP_MAGIC
566 exec.a_info = SWAP_MAGIC (exec_bytes.e_info);
567#else
dc810e39 568 exec.a_info = H_GET_32 (abfd, exec_bytes.e_info);
252b5132
RH		 569#endif /* SWAP_MAGIC */
570
571 if (N_BADMAG (exec))
572 return 0;
573#ifdef MACHTYPE_OK
574 if (!(MACHTYPE_OK (N_MACHTYPE (exec))))
575 return 0;
576#endif
577
578 NAME (aout, swap_exec_header_in) (abfd, &exec_bytes, &exec);
579
580#ifdef SWAP_MAGIC
581 /* swap_exec_header_in read in a_info with the wrong byte order */
582 exec.a_info = SWAP_MAGIC (exec_bytes.e_info);
583#endif /* SWAP_MAGIC */
584
585 target = NAME (aout, some_aout_object_p) (abfd, &exec, tic30_aout_callback);
586
587#ifdef ENTRY_CAN_BE_ZERO
588 /* The NEWSOS3 entry-point is/was 0, which (amongst other lossage)
1725a96e
NC		 589 means that it isn't obvious if EXEC_P should be set.
590 All of the following must be true for an executable:
591 There must be no relocations, the bfd can be neither an
592 archive nor an archive element, and the file must be executable. */
252b5132
RH		 593
594 if (exec.a_trsize + exec.a_drsize == 0
595 && bfd_get_format (abfd) == bfd_object && abfd->my_archive == NULL)
596 {
597 struct stat buf;
598#ifndef S_IXUSR
599#define S_IXUSR 0100 /* Execute by owner. */
600#endif
601 if (stat (abfd->filename, &buf) == 0 && (buf.st_mode & S_IXUSR))
602 abfd->flags |= EXEC_P;
603 }
604#endif /* ENTRY_CAN_BE_ZERO */
605
606 return target;
607}
608
609/* Copy private section data. This actually does nothing with the
610 sections. It copies the subformat field. We copy it here, because
611 we need to know whether this is a QMAGIC file before we set the
612 section contents, and copy_private_bfd_data is not called until
613 after the section contents have been set. */
614
b34976b6 615static bfd_boolean
252b5132
RH		 616MY_bfd_copy_private_section_data (ibfd, isec, obfd, osec)
617 bfd *ibfd;
5f771d47 618 asection *isec ATTRIBUTE_UNUSED;
252b5132 619 bfd *obfd;
5f771d47 620 asection *osec ATTRIBUTE_UNUSED;
252b5132
RH		 621{
622 if (bfd_get_flavour (obfd) == bfd_target_aout_flavour)
623 obj_aout_subformat (obfd) = obj_aout_subformat (ibfd);
b34976b6 624 return TRUE;
252b5132
RH		 625}
626
627/* Write an object file.
628 Section contents have already been written. We write the
629 file header, symbols, and relocation. */
630
b34976b6 631static bfd_boolean
252b5132
RH		 632tic30_aout_write_object_contents (abfd)
633 bfd *abfd;
634{
635 struct external_exec exec_bytes;
636 struct internal_exec *execp = exec_hdr (abfd);
637
252b5132 638 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
8ba8a462 639
252b5132 640 {
1725a96e 641 bfd_size_type text_size; /* Dummy vars. */
252b5132 642 file_ptr text_end;
1725a96e 643
252b5132
RH		 644 if (adata (abfd).magic == undecided_magic)
645 NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
646
647 execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;
648 execp->a_entry = bfd_get_start_address (abfd);
649
650 execp->a_trsize = ((obj_textsec (abfd)->reloc_count) * obj_reloc_entry_size (abfd));
651 execp->a_drsize = ((obj_datasec (abfd)->reloc_count) * obj_reloc_entry_size (abfd));
652 NAME (aout, swap_exec_header_out) (abfd, execp, &exec_bytes);
653
654 if (adata (abfd).exec_bytes_size > 0)
655 {
dc810e39 656 bfd_size_type amt;
252b5132 657 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
b34976b6 658 return FALSE;
dc810e39
AM		 659 amt = adata (abfd).exec_bytes_size;
660 if (bfd_bwrite ((PTR) &exec_bytes, amt, abfd) != amt)
b34976b6 661 return FALSE;
252b5132 662 }
252b5132 663
1725a96e 664 /* Now write out reloc info, followed by syms and strings. */
252b5132
RH		 665 if (bfd_get_outsymbols (abfd) != (asymbol **) NULL
666 && bfd_get_symcount (abfd) != 0)
667 {
668 if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (*execp)), SEEK_SET) != 0)
b34976b6 669 return FALSE;
252b5132
RH		 670
671 if (!NAME (aout, write_syms) (abfd))
b34976b6 672 return FALSE;
252b5132
RH		 673 }
674
675 if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (*execp)), SEEK_SET) != 0)
b34976b6 676 return FALSE;
252b5132 677 if (!NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd)))
b34976b6 678 return FALSE;
252b5132
RH		 679
680 if (bfd_seek (abfd, (file_ptr) (N_DRELOFF (*execp)), SEEK_SET) != 0)
b34976b6 681 return FALSE;
252b5132 682 if (!NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd)))
b34976b6 683 return FALSE;
252b5132
RH		 684 }
685
b34976b6 686 return TRUE;
252b5132
RH		 687}
688
b34976b6 689static bfd_boolean
252b5132
RH		 690tic30_aout_set_sizes (abfd)
691 bfd *abfd;
692{
693 adata (abfd).page_size = TARGET_PAGE_SIZE;
694
695#ifdef SEGMENT_SIZE
696 adata (abfd).segment_size = SEGMENT_SIZE;
697#else
698 adata (abfd).segment_size = TARGET_PAGE_SIZE;
699#endif
700
701#ifdef ZMAGIC_DISK_BLOCK_SIZE
702 adata (abfd).zmagic_disk_block_size = ZMAGIC_DISK_BLOCK_SIZE;
703#else
704 adata (abfd).zmagic_disk_block_size = TARGET_PAGE_SIZE;
705#endif
706
707 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
708
b34976b6 709 return TRUE;
252b5132
RH		 710}
711
712#ifndef MY_final_link_callback
713
714/* Callback for the final_link routine to set the section offsets. */
715
716static void MY_final_link_callback
717 PARAMS ((bfd *, file_ptr *, file_ptr *, file_ptr *));
718
719static void
720MY_final_link_callback (abfd, ptreloff, pdreloff, psymoff)
721 bfd *abfd;
722 file_ptr *ptreloff;
723 file_ptr *pdreloff;
724 file_ptr *psymoff;
725{
726 struct internal_exec *execp = exec_hdr (abfd);
727
728 *ptreloff = obj_datasec (abfd)->filepos + execp->a_data;
729 *pdreloff = *ptreloff + execp->a_trsize;
730 *psymoff = *pdreloff + execp->a_drsize;;
731}
732
733#endif
734
735#ifndef MY_bfd_final_link
736
737/* Final link routine. We need to use a call back to get the correct
738 offsets in the output file. */
739
b34976b6 740static bfd_boolean
252b5132
RH		 741MY_bfd_final_link (abfd, info)
742 bfd *abfd;
743 struct bfd_link_info *info;
744{
745 struct internal_exec *execp = exec_hdr (abfd);
746 file_ptr pos;
747 bfd_vma vma = 0;
748 int pad;
749
750 /* Set the executable header size to 0, as we don't want one for an
c4dfa77f 751 output. */
252b5132
RH		 752 adata (abfd).exec_bytes_size = 0;
753 pos = adata (abfd).exec_bytes_size;
754 /* Text. */
755 vma = info->create_object_symbols_section->vma;
756 pos += vma;
757 obj_textsec (abfd)->filepos = pos;
758 obj_textsec (abfd)->vma = vma;
759 obj_textsec (abfd)->user_set_vma = 1;
760 pos += obj_textsec (abfd)->_raw_size;
761 vma += obj_textsec (abfd)->_raw_size;
762
763 /* Data. */
764 if (abfd->flags & D_PAGED)
765 {
766 if (info->create_object_symbols_section->next->vma > 0)
767 obj_datasec (abfd)->vma = info->create_object_symbols_section->next->vma;
768 else
769 obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
770 }
771 else
772 {
773 obj_datasec (abfd)->vma = BFD_ALIGN (vma, 4);
774 }
1725a96e 775
252b5132 776 if (obj_datasec (abfd)->vma < vma)
1725a96e
NC		 777 obj_datasec (abfd)->vma = BFD_ALIGN (vma, 4);
778
252b5132
RH		 779 obj_datasec (abfd)->user_set_vma = 1;
780 vma = obj_datasec (abfd)->vma;
781 obj_datasec (abfd)->filepos = vma + adata (abfd).exec_bytes_size;
782 execp->a_text = vma - obj_textsec (abfd)->vma;
783 obj_textsec (abfd)->_raw_size = execp->a_text;
784
785 /* Since BSS follows data immediately, see if it needs alignment. */
786 vma += obj_datasec (abfd)->_raw_size;
787 pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma;
788 obj_datasec (abfd)->_raw_size += pad;
789 pos += obj_datasec (abfd)->_raw_size;
790 execp->a_data = obj_datasec (abfd)->_raw_size;
791
792 /* BSS. */
793 obj_bsssec (abfd)->vma = vma;
794 obj_bsssec (abfd)->user_set_vma = 1;
795
c4dfa77f 796 /* We are fully resized, so don't readjust in final_link. */
252b5132
RH		 797 adata (abfd).magic = z_magic;
798
799 return NAME (aout, final_link) (abfd, info, MY_final_link_callback);
800}
801
802#endif
803
804enum machine_type
805tic30_aout_machine_type (arch, machine, unknown)
806 enum bfd_architecture arch;
5f771d47 807 unsigned long machine ATTRIBUTE_UNUSED;
b34976b6 808 bfd_boolean *unknown;
252b5132
RH		 809{
810 enum machine_type arch_flags;
811
812 arch_flags = M_UNKNOWN;
b34976b6 813 *unknown = TRUE;
252b5132
RH		 814
815 switch (arch)
816 {
817 case bfd_arch_tic30:
b34976b6 818 *unknown = FALSE;
252b5132
RH		 819 break;
820 default:
821 arch_flags = M_UNKNOWN;
822 }
823 if (arch_flags != M_UNKNOWN)
b34976b6 824 *unknown = FALSE;
252b5132
RH		 825 return arch_flags;
826}
827
b34976b6 828bfd_boolean
252b5132
RH		 829tic30_aout_set_arch_mach (abfd, arch, machine)
830 bfd *abfd;
831 enum bfd_architecture arch;
832 unsigned long machine;
833{
834 if (!bfd_default_set_arch_mach (abfd, arch, machine))
b34976b6 835 return FALSE;
252b5132
RH		 836 if (arch != bfd_arch_unknown)
837 {
b34976b6 838 bfd_boolean unknown;
252b5132
RH		 839 tic30_aout_machine_type (arch, machine, &unknown);
840 if (unknown)
b34976b6 841 return FALSE;
252b5132
RH		 842 }
843 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
844 return (*aout_backend_info (abfd)->set_sizes) (abfd);
845}
846
847/* We assume BFD generic archive files. */
848#ifndef MY_openr_next_archived_file
849#define MY_openr_next_archived_file bfd_generic_openr_next_archived_file
850#endif
851#ifndef MY_get_elt_at_index
852#define MY_get_elt_at_index _bfd_generic_get_elt_at_index
853#endif
854#ifndef MY_generic_stat_arch_elt
855#define MY_generic_stat_arch_elt bfd_generic_stat_arch_elt
856#endif
857#ifndef MY_slurp_armap
858#define MY_slurp_armap bfd_slurp_bsd_armap
859#endif
860#ifndef MY_slurp_extended_name_table
861#define MY_slurp_extended_name_table _bfd_slurp_extended_name_table
862#endif
863#ifndef MY_construct_extended_name_table
864#define MY_construct_extended_name_table \
865 _bfd_archive_bsd_construct_extended_name_table
866#endif
867#ifndef MY_write_armap
868#define MY_write_armap bsd_write_armap
869#endif
870#ifndef MY_read_ar_hdr
871#define MY_read_ar_hdr _bfd_generic_read_ar_hdr
872#endif
873#ifndef MY_truncate_arname
874#define MY_truncate_arname bfd_bsd_truncate_arname
875#endif
876#ifndef MY_update_armap_timestamp
877#define MY_update_armap_timestamp _bfd_archive_bsd_update_armap_timestamp
878#endif
879
880/* No core file defined here -- configure in trad-core.c separately. */
881#ifndef MY_core_file_failing_command
882#define MY_core_file_failing_command _bfd_nocore_core_file_failing_command
883#endif
884#ifndef MY_core_file_failing_signal
885#define MY_core_file_failing_signal _bfd_nocore_core_file_failing_signal
886#endif
887#ifndef MY_core_file_matches_executable_p
888#define MY_core_file_matches_executable_p \
889 _bfd_nocore_core_file_matches_executable_p
890#endif
891#ifndef MY_core_file_p
892#define MY_core_file_p _bfd_dummy_target
893#endif
894
895#ifndef MY_bfd_debug_info_start
896#define MY_bfd_debug_info_start bfd_void
897#endif
898#ifndef MY_bfd_debug_info_end
899#define MY_bfd_debug_info_end bfd_void
900#endif
901#ifndef MY_bfd_debug_info_accumulate
902#define MY_bfd_debug_info_accumulate \
198beae2 903 (void (*) PARAMS ((bfd*, struct bfd_section *))) bfd_void
252b5132
RH		 904#endif
905
906#ifndef MY_core_file_failing_command
907#define MY_core_file_failing_command NAME(aout,core_file_failing_command)
908#endif
909#ifndef MY_core_file_failing_signal
910#define MY_core_file_failing_signal NAME(aout,core_file_failing_signal)
911#endif
912#ifndef MY_core_file_matches_executable_p
913#define MY_core_file_matches_executable_p NAME(aout,core_file_matches_executable_p)
914#endif
915#ifndef MY_set_section_contents
916#define MY_set_section_contents NAME(aout,set_section_contents)
917#endif
918#ifndef MY_get_section_contents
919#define MY_get_section_contents aout_32_get_section_contents
920#endif
921#ifndef MY_get_section_contents_in_window
922#define MY_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
923#endif
924#ifndef MY_new_section_hook
925#define MY_new_section_hook NAME(aout,new_section_hook)
926#endif
927#ifndef MY_get_symtab_upper_bound
928#define MY_get_symtab_upper_bound NAME(aout,get_symtab_upper_bound)
929#endif
6cee3f79
AC		 930#ifndef MY_canonicalize_symtab
931#define MY_canonicalize_symtab NAME(aout,canonicalize_symtab)
252b5132
RH		 932#endif
933#ifndef MY_get_reloc_upper_bound
934#define MY_get_reloc_upper_bound NAME(aout,get_reloc_upper_bound)
935#endif
936#ifndef MY_canonicalize_reloc
937#define MY_canonicalize_reloc NAME(aout,canonicalize_reloc)
938#endif
939#ifndef MY_make_empty_symbol
940#define MY_make_empty_symbol NAME(aout,make_empty_symbol)
941#endif
942#ifndef MY_print_symbol
943#define MY_print_symbol NAME(aout,print_symbol)
944#endif
945#ifndef MY_get_symbol_info
946#define MY_get_symbol_info NAME(aout,get_symbol_info)
947#endif
948#ifndef MY_get_lineno
949#define MY_get_lineno NAME(aout,get_lineno)
950#endif
951#ifndef MY_set_arch_mach
952#define MY_set_arch_mach tic30_aout_set_arch_mach
953#endif
954#ifndef MY_find_nearest_line
955#define MY_find_nearest_line NAME(aout,find_nearest_line)
956#endif
957#ifndef MY_sizeof_headers
958#define MY_sizeof_headers NAME(aout,sizeof_headers)
959#endif
960#ifndef MY_bfd_get_relocated_section_contents
961#define MY_bfd_get_relocated_section_contents \
962 bfd_generic_get_relocated_section_contents
963#endif
964#ifndef MY_bfd_relax_section
965#define MY_bfd_relax_section bfd_generic_relax_section
966#endif
967#ifndef MY_bfd_gc_sections
968#define MY_bfd_gc_sections bfd_generic_gc_sections
969#endif
8550eb6e
JJ		 970#ifndef MY_bfd_merge_sections
971#define MY_bfd_merge_sections bfd_generic_merge_sections
972#endif
72adc230
AM		 973#ifndef MY_bfd_is_group_section
974#define MY_bfd_is_group_section bfd_generic_is_group_section
975#endif
e61463e1
AM		 976#ifndef MY_bfd_discard_group
977#define MY_bfd_discard_group bfd_generic_discard_group
978#endif
252b5132
RH		 979#ifndef MY_bfd_reloc_type_lookup
980#define MY_bfd_reloc_type_lookup tic30_aout_reloc_type_lookup
981#endif
982#ifndef MY_bfd_make_debug_symbol
983#define MY_bfd_make_debug_symbol 0
984#endif
985#ifndef MY_read_minisymbols
986#define MY_read_minisymbols NAME(aout,read_minisymbols)
987#endif
988#ifndef MY_minisymbol_to_symbol
989#define MY_minisymbol_to_symbol NAME(aout,minisymbol_to_symbol)
990#endif
991#ifndef MY_bfd_link_hash_table_create
992#define MY_bfd_link_hash_table_create NAME(aout,link_hash_table_create)
993#endif
e2d34d7d
DJ		 994#ifndef MY_bfd_link_hash_table_free
995#define MY_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
996#endif
252b5132
RH		 997#ifndef MY_bfd_link_add_symbols
998#define MY_bfd_link_add_symbols NAME(aout,link_add_symbols)
999#endif
2d653fc7
AM		 1000#ifndef MY_bfd_link_just_syms
1001#define MY_bfd_link_just_syms _bfd_generic_link_just_syms
1002#endif
252b5132
RH		 1003#ifndef MY_bfd_link_split_section
1004#define MY_bfd_link_split_section _bfd_generic_link_split_section
1005#endif
1006
252b5132
RH		 1007#ifndef MY_bfd_copy_private_bfd_data
1008#define MY_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
1009#endif
1010
1011#ifndef MY_bfd_merge_private_bfd_data
1012#define MY_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
1013#endif
1014
1015#ifndef MY_bfd_copy_private_symbol_data
1016#define MY_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data
1017#endif
1018
1019#ifndef MY_bfd_print_private_bfd_data
1020#define MY_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
1021#endif
1022
1023#ifndef MY_bfd_set_private_flags
1024#define MY_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
1025#endif
1026
1027#ifndef MY_bfd_is_local_label_name
1028#define MY_bfd_is_local_label_name bfd_generic_is_local_label_name
1029#endif
1030
1031#ifndef MY_bfd_free_cached_info
1032#define MY_bfd_free_cached_info NAME(aout,bfd_free_cached_info)
1033#endif
1034
1035#ifndef MY_close_and_cleanup
1036#define MY_close_and_cleanup MY_bfd_free_cached_info
1037#endif
1038
1039#ifndef MY_get_dynamic_symtab_upper_bound
1040#define MY_get_dynamic_symtab_upper_bound \
1041 _bfd_nodynamic_get_dynamic_symtab_upper_bound
1042#endif
1043#ifndef MY_canonicalize_dynamic_symtab
1044#define MY_canonicalize_dynamic_symtab \
1045 _bfd_nodynamic_canonicalize_dynamic_symtab
1046#endif
4c45e5c9
JJ		 1047#ifndef MY_get_synthetic_symtab
1048#define MY_get_synthetic_symtab \
1049 _bfd_nodynamic_get_synthetic_symtab
1050#endif
252b5132
RH		 1051#ifndef MY_get_dynamic_reloc_upper_bound
1052#define MY_get_dynamic_reloc_upper_bound \
1053 _bfd_nodynamic_get_dynamic_reloc_upper_bound
1054#endif
1055#ifndef MY_canonicalize_dynamic_reloc
1056#define MY_canonicalize_dynamic_reloc \
1057 _bfd_nodynamic_canonicalize_dynamic_reloc
1058#endif
1059
1060/* Aout symbols normally have leading underscores */
1061#ifndef MY_symbol_leading_char
1062#define MY_symbol_leading_char '_'
1063#endif
1064
1065/* Aout archives normally use spaces for padding */
1066#ifndef AR_PAD_CHAR
1067#define AR_PAD_CHAR ' '
1068#endif
1069
1070#ifndef MY_BFD_TARGET
1071const bfd_target tic30_aout_vec =
1072{
1073 TARGETNAME, /* name */
1074 bfd_target_aout_flavour,
1075 BFD_ENDIAN_BIG, /* target byte order (big) */
1076 BFD_ENDIAN_BIG, /* target headers byte order (big) */
1077 (HAS_RELOC | /* object flags */
1078 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
1079 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
1080 MY_symbol_leading_char,
1081 AR_PAD_CHAR, /* ar_pad_char */
1082 15, /* ar_max_namelen */
1083 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1084 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1085 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
1086 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1087 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1088 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
1089 {_bfd_dummy_target, MY_object_p, /* bfd_check_format */
1090 bfd_generic_archive_p, MY_core_file_p},
1091 {bfd_false, MY_mkobject, /* bfd_set_format */
1092 _bfd_generic_mkarchive, bfd_false},
1093 {bfd_false, MY_write_object_contents, /* bfd_write_contents */
1094 _bfd_write_archive_contents, bfd_false},
1095
1096 BFD_JUMP_TABLE_GENERIC (MY),
1097 BFD_JUMP_TABLE_COPY (MY),
1098 BFD_JUMP_TABLE_CORE (MY),
1099 BFD_JUMP_TABLE_ARCHIVE (MY),
1100 BFD_JUMP_TABLE_SYMBOLS (MY),
1101 BFD_JUMP_TABLE_RELOCS (MY),
1102 BFD_JUMP_TABLE_WRITE (MY),
1103 BFD_JUMP_TABLE_LINK (MY),
1104 BFD_JUMP_TABLE_DYNAMIC (MY),
1105
c3c89269 1106 NULL,
c4dfa77f 1107
c3c89269 1108 (PTR) MY_backend_data
252b5132
RH		 1109};
1110#endif /* MY_BFD_TARGET */
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