1 /* BFD back-end for oasys objects.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2001,
3 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
4 Written by Steve Chamberlain of Cygnus Support, <sac@cygnus.com>.
6 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
22 #define UNDERSCORE_HACK 1
25 #include "safe-ctype.h"
30 /* Read in all the section data and relocation stuff too. */
33 oasys_read_record (bfd *abfd, oasys_record_union_type *record)
35 bfd_size_type amt = sizeof (record->header);
37 if (bfd_bread ((void *) record, amt, abfd) != amt)
40 amt = record->header.length - sizeof (record->header);
43 if (bfd_bread ((void *) ((char *) record + sizeof (record->header)), amt, abfd)
50 oasys_string_length (oasys_record_union_type *record)
52 return record->header.length
53 - ((char *) record->symbol.name - (char *) record);
56 /* Slurp the symbol table by reading in all the records at the start file
57 till we get to the first section record.
59 We'll sort the symbolss into two lists, defined and undefined. The
60 undefined symbols will be placed into the table according to their
63 We do this by placing all undefined symbols at the front of the table
64 moving in, and the defined symbols at the end of the table moving back. */
67 oasys_slurp_symbol_table (bfd *const abfd)
69 oasys_record_union_type record;
70 oasys_data_type *data = OASYS_DATA (abfd);
71 bfd_boolean loop = TRUE;
72 asymbol *dest_defined;
77 if (data->symbols != NULL)
80 /* Buy enough memory for all the symbols and all the names. */
82 amt *= sizeof (asymbol);
83 data->symbols = bfd_alloc (abfd, amt);
85 amt = data->symbol_string_length;
86 #ifdef UNDERSCORE_HACK
87 /* Buy 1 more char for each symbol to keep the underscore in. */
88 amt += abfd->symcount;
90 data->strings = bfd_alloc (abfd, amt);
92 if (!data->symbols || !data->strings)
95 dest_defined = data->symbols + abfd->symcount - 1;
97 string_ptr = data->strings;
98 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
102 if (! oasys_read_record (abfd, &record))
105 switch (record.header.type)
107 case oasys_record_is_header_enum:
109 case oasys_record_is_local_enum:
110 case oasys_record_is_symbol_enum:
112 int flag = record.header.type == (int) oasys_record_is_local_enum ?
113 (BSF_LOCAL) : (BSF_GLOBAL | BSF_EXPORT);
115 size_t length = oasys_string_length (&record);
116 switch (record.symbol.relb & RELOCATION_TYPE_BITS)
118 case RELOCATION_TYPE_ABS:
119 dest = dest_defined--;
120 dest->section = bfd_abs_section_ptr;
124 case RELOCATION_TYPE_REL:
125 dest = dest_defined--;
127 OASYS_DATA (abfd)->sections[record.symbol.relb &
128 RELOCATION_SECT_BITS];
129 if (record.header.type == (int) oasys_record_is_local_enum)
131 dest->flags = BSF_LOCAL;
132 if (dest->section == (asection *) (~0))
134 /* It seems that sometimes internal symbols are tied up, but
135 still get output, even though there is no
143 case RELOCATION_TYPE_UND:
144 dest = data->symbols + H_GET_16 (abfd, record.symbol.refno);
145 dest->section = bfd_und_section_ptr;
147 case RELOCATION_TYPE_COM:
148 dest = dest_defined--;
149 dest->name = string_ptr;
150 dest->the_bfd = abfd;
151 dest->section = bfd_com_section_ptr;
154 dest = dest_defined--;
158 dest->name = string_ptr;
159 dest->the_bfd = abfd;
160 dest->udata.p = NULL;
161 dest->value = H_GET_32 (abfd, record.symbol.value);
163 #ifdef UNDERSCORE_HACK
164 if (record.symbol.name[0] != '_')
170 memcpy (string_ptr, record.symbol.name, length);
172 string_ptr[length] = 0;
173 string_ptr += length + 1;
184 oasys_get_symtab_upper_bound (bfd *const abfd)
186 if (! oasys_slurp_symbol_table (abfd))
189 return (abfd->symcount + 1) * (sizeof (oasys_symbol_type *));
192 extern const bfd_target oasys_vec;
195 oasys_canonicalize_symtab (bfd *abfd, asymbol **location)
198 unsigned int counter;
200 if (! oasys_slurp_symbol_table (abfd))
203 symbase = OASYS_DATA (abfd)->symbols;
204 for (counter = 0; counter < abfd->symcount; counter++)
205 *(location++) = symbase++;
208 return abfd->symcount;
213 static const bfd_target *
214 oasys_archive_p (bfd *abfd)
216 oasys_archive_header_type header;
217 oasys_extarchive_header_type header_ext;
222 amt = sizeof (header_ext);
223 if (bfd_seek (abfd, (file_ptr) 0, 0) != 0
224 || bfd_bread ((void *) &header_ext, amt, abfd) != amt)
226 if (bfd_get_error () != bfd_error_system_call)
227 bfd_set_error (bfd_error_wrong_format);
231 header.version = H_GET_32 (abfd, header_ext.version);
232 header.mod_count = H_GET_32 (abfd, header_ext.mod_count);
233 header.mod_tbl_offset = H_GET_32 (abfd, header_ext.mod_tbl_offset);
234 header.sym_tbl_size = H_GET_32 (abfd, header_ext.sym_tbl_size);
235 header.sym_count = H_GET_32 (abfd, header_ext.sym_count);
236 header.sym_tbl_offset = H_GET_32 (abfd, header_ext.sym_tbl_offset);
237 header.xref_count = H_GET_32 (abfd, header_ext.xref_count);
238 header.xref_lst_offset = H_GET_32 (abfd, header_ext.xref_lst_offset);
240 /* There isn't a magic number in an Oasys archive, so the best we
241 can do to verify reasonableness is to make sure that the values in
242 the header are too weird. */
244 if (header.version > 10000
245 || header.mod_count > 10000
246 || header.sym_count > 100000
247 || header.xref_count > 100000)
250 /* That all worked, let's buy the space for the header and read in
253 oasys_ar_data_type *ar;
254 oasys_module_info_type *module;
255 oasys_module_table_type record;
257 amt = sizeof (oasys_ar_data_type);
258 ar = bfd_alloc (abfd, amt);
260 amt = header.mod_count;
261 amt *= sizeof (oasys_module_info_type);
262 module = bfd_alloc (abfd, amt);
267 abfd->tdata.oasys_ar_data = ar;
269 ar->module_count = header.mod_count;
271 filepos = header.mod_tbl_offset;
272 for (i = 0; i < header.mod_count; i++)
274 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
277 /* There are two ways of specifying the archive header. */
279 oasys_extmodule_table_type_b_type record_ext;
281 amt = sizeof (record_ext);
282 if (bfd_bread ((void *) &record_ext, amt, abfd) != amt)
285 record.mod_size = H_GET_32 (abfd, record_ext.mod_size);
286 record.file_offset = H_GET_32 (abfd, record_ext.file_offset);
288 record.dep_count = H_GET_32 (abfd, record_ext.dep_count);
289 record.depee_count = H_GET_32 (abfd, record_ext.depee_count);
290 record.sect_count = H_GET_32 (abfd, record_ext.sect_count);
291 record.module_name_size = H_GET_32 (abfd,
292 record_ext.mod_name_length);
294 amt = record.module_name_size;
295 module[i].name = bfd_alloc (abfd, amt + 1);
298 if (bfd_bread ((void *) module[i].name, amt, abfd) != amt)
300 module[i].name[record.module_name_size] = 0;
301 filepos += (sizeof (record_ext)
302 + record.dep_count * 4
303 + record.module_name_size + 1);
306 module[i].size = record.mod_size;
307 module[i].pos = record.file_offset;
315 oasys_mkobject (bfd *abfd)
317 bfd_size_type amt = sizeof (oasys_data_type);
319 abfd->tdata.oasys_obj_data = bfd_alloc (abfd, amt);
321 return abfd->tdata.oasys_obj_data != NULL;
324 /* The howto table is build using the top two bits of a reloc byte to
325 index into it. The bits are PCREL,WORD/LONG. */
327 static reloc_howto_type howto_table[] =
330 HOWTO (0, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, 0, "abs16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
331 HOWTO (0, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "abs32", TRUE, 0xffffffff, 0xffffffff, FALSE),
332 HOWTO (0, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "pcrel16", TRUE, 0x0000ffff, 0x0000ffff, FALSE),
333 HOWTO (0, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0, "pcrel32", TRUE, 0xffffffff, 0xffffffff, FALSE)
336 /* Read in all the section data and relocation stuff too. */
339 oasys_slurp_section_data (bfd *const abfd)
341 oasys_record_union_type record;
342 oasys_data_type *data = OASYS_DATA (abfd);
343 bfd_boolean loop = TRUE;
344 oasys_per_section_type *per;
348 /* See if the data has been slurped already. */
349 for (s = abfd->sections; s != NULL; s = s->next)
351 per = oasys_per_section (s);
352 if (per->initialized)
356 if (data->first_data_record == 0)
359 if (bfd_seek (abfd, data->first_data_record, SEEK_SET) != 0)
364 if (! oasys_read_record (abfd, &record))
367 switch (record.header.type)
369 case oasys_record_is_header_enum:
371 case oasys_record_is_data_enum:
373 bfd_byte *src = record.data.data;
374 bfd_byte *end_src = ((bfd_byte *) & record) + record.header.length;
376 bfd_byte *dst_base_ptr;
380 data->sections[record.data.relb & RELOCATION_SECT_BITS];
383 per = oasys_per_section (section);
385 if (! per->initialized)
389 per->data = bfd_zalloc (abfd, section->size);
392 relpp = §ion->relocation;
393 per->reloc_tail_ptr = (oasys_reloc_type **) relpp;
394 per->had_vma = FALSE;
395 per->initialized = TRUE;
396 section->reloc_count = 0;
397 section->flags = SEC_ALLOC;
400 dst_offset = H_GET_32 (abfd, record.data.addr);
403 /* Take the first vma we see as the base. */
404 section->vma = dst_offset;
408 dst_offset -= section->vma;
410 dst_base_ptr = oasys_per_section (section)->data;
411 dst_ptr = oasys_per_section (section)->data +
415 section->flags |= SEC_LOAD | SEC_HAS_CONTENTS;
417 while (src < end_src)
419 unsigned char mod_byte = *src++;
420 size_t gap = end_src - src;
423 if (mod_byte == 0 && gap >= 8)
438 for (relbit = 1; count-- != 0 && src < end_src; relbit <<= 1)
440 if (relbit & mod_byte)
442 unsigned char reloc = *src;
443 /* This item needs to be relocated. */
444 switch (reloc & RELOCATION_TYPE_BITS)
446 case RELOCATION_TYPE_ABS:
449 case RELOCATION_TYPE_REL:
451 /* Relocate the item relative to the section. */
454 amt = sizeof (oasys_reloc_type);
455 r = bfd_alloc (abfd, amt);
458 *(per->reloc_tail_ptr) = r;
459 per->reloc_tail_ptr = &r->next;
461 /* Reference to undefined symbol. */
463 /* There is no symbol. */
465 /* Work out the howto. */
467 r->relent.address = dst_ptr - dst_base_ptr;
468 r->relent.howto = &howto_table[reloc >> 6];
469 r->relent.sym_ptr_ptr = NULL;
470 section->reloc_count++;
472 /* Fake up the data to look like
473 it's got the -ve pc in it, this
474 makes it much easier to convert
475 into other formats. This is done
476 by hitting the addend. */
477 if (r->relent.howto->pc_relative)
478 r->relent.addend -= dst_ptr - dst_base_ptr;
482 case RELOCATION_TYPE_UND:
486 amt = sizeof (oasys_reloc_type);
487 r = bfd_alloc (abfd, amt);
490 *(per->reloc_tail_ptr) = r;
491 per->reloc_tail_ptr = &r->next;
493 /* Reference to undefined symbol. */
495 /* Get symbol number. */
496 r->symbol = (src[0] << 8) | src[1];
497 /* Work out the howto. */
500 r->relent.addend = 0;
501 r->relent.address = dst_ptr - dst_base_ptr;
502 r->relent.howto = &howto_table[reloc >> 6];
503 r->relent.sym_ptr_ptr = NULL;
504 section->reloc_count++;
507 /* Fake up the data to look like
508 it's got the -ve pc in it, this
509 makes it much easier to convert
510 into other formats. This is done
511 by hitting the addend. */
512 if (r->relent.howto->pc_relative)
513 r->relent.addend -= dst_ptr - dst_base_ptr;
516 case RELOCATION_TYPE_COM:
526 case oasys_record_is_local_enum:
527 case oasys_record_is_symbol_enum:
528 case oasys_record_is_section_enum:
541 static const bfd_target *
542 oasys_object_p (bfd *abfd)
544 oasys_data_type *oasys;
545 oasys_data_type *save = OASYS_DATA (abfd);
546 bfd_boolean loop = TRUE;
547 bfd_boolean had_usefull = FALSE;
549 abfd->tdata.oasys_obj_data = 0;
550 oasys_mkobject (abfd);
551 oasys = OASYS_DATA (abfd);
552 memset ((void *) oasys->sections, 0xff, sizeof (oasys->sections));
554 /* Point to the start of the file. */
555 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
557 oasys->symbol_string_length = 0;
559 /* Inspect the records, but only keep the section info -
560 remember the size of the symbols. */
561 oasys->first_data_record = 0;
564 oasys_record_union_type record;
565 if (! oasys_read_record (abfd, &record))
567 if ((size_t) record.header.length < (size_t) sizeof (record.header))
570 switch ((oasys_record_enum_type) (record.header.type))
572 case oasys_record_is_header_enum:
575 case oasys_record_is_symbol_enum:
576 case oasys_record_is_local_enum:
577 /* Count symbols and remember their size for a future malloc. */
579 oasys->symbol_string_length += 1 + oasys_string_length (&record);
582 case oasys_record_is_section_enum:
586 unsigned int section_number;
588 if (record.section.header.length != sizeof (record.section))
591 buffer = bfd_alloc (abfd, (bfd_size_type) 3);
594 section_number = record.section.relb & RELOCATION_SECT_BITS;
595 sprintf (buffer, "%u", section_number);
596 s = bfd_make_section (abfd, buffer);
597 oasys->sections[section_number] = s;
598 switch (record.section.relb & RELOCATION_TYPE_BITS)
600 case RELOCATION_TYPE_ABS:
601 case RELOCATION_TYPE_REL:
603 case RELOCATION_TYPE_UND:
604 case RELOCATION_TYPE_COM:
608 s->size = H_GET_32 (abfd, record.section.value);
609 s->vma = H_GET_32 (abfd, record.section.vma);
614 case oasys_record_is_data_enum:
615 oasys->first_data_record = bfd_tell (abfd) - record.header.length;
616 case oasys_record_is_debug_enum:
617 case oasys_record_is_module_enum:
618 case oasys_record_is_named_section_enum:
619 case oasys_record_is_end_enum:
628 oasys->symbols = NULL;
630 /* Oasys support several architectures, but I can't see a simple way
631 to discover which one is in a particular file - we'll guess. */
632 bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
633 if (abfd->symcount != 0)
634 abfd->flags |= HAS_SYMS;
636 /* We don't know if a section has data until we've read it. */
637 oasys_slurp_section_data (abfd);
642 (void) bfd_release (abfd, oasys);
643 abfd->tdata.oasys_obj_data = save;
649 oasys_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
653 bfd_symbol_info (symbol, ret);
655 if (!symbol->section)
656 ret->type = (symbol->flags & BSF_LOCAL) ? 'a' : 'A';
660 oasys_print_symbol (bfd *abfd, void * afile, asymbol *symbol, bfd_print_symbol_type how)
662 FILE *file = (FILE *) afile;
666 case bfd_print_symbol_name:
667 case bfd_print_symbol_more:
668 fprintf (file, "%s", symbol->name);
670 case bfd_print_symbol_all:
672 const char *section_name = symbol->section == NULL ?
673 (const char *) "*abs" : symbol->section->name;
675 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
677 fprintf (file, " %-5s %s",
686 oasys_new_section_hook (bfd *abfd, asection *newsect)
688 if (!newsect->used_by_bfd)
691 = bfd_alloc (abfd, (bfd_size_type) sizeof (oasys_per_section_type));
692 if (!newsect->used_by_bfd)
695 oasys_per_section (newsect)->data = NULL;
696 oasys_per_section (newsect)->section = newsect;
697 oasys_per_section (newsect)->offset = 0;
698 oasys_per_section (newsect)->initialized = FALSE;
699 newsect->alignment_power = 1;
701 /* Turn the section string into an index. */
702 sscanf (newsect->name, "%u", &newsect->target_index);
704 return _bfd_generic_new_section_hook (abfd, newsect);
709 oasys_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
711 if (! oasys_slurp_section_data (abfd))
713 return (asect->reloc_count + 1) * sizeof (arelent *);
717 oasys_get_section_contents (bfd *abfd,
723 oasys_per_section_type *p = oasys_per_section (section);
725 oasys_slurp_section_data (abfd);
727 if (! p->initialized)
728 (void) memset (location, 0, (size_t) count);
730 (void) memcpy (location, (void *) (p->data + offset), (size_t) count);
736 oasys_canonicalize_reloc (bfd *ignore_abfd ATTRIBUTE_UNUSED,
739 asymbol **symbols ATTRIBUTE_UNUSED)
741 unsigned int reloc_count = 0;
742 oasys_reloc_type *src = (oasys_reloc_type *) (section->relocation);
748 return section->reloc_count = reloc_count;
754 /* Calculate the checksum and write one record. */
757 oasys_write_record (bfd *abfd,
758 oasys_record_enum_type type,
759 oasys_record_union_type *record,
766 record->header.length = size;
767 record->header.type = (int) type;
768 record->header.check_sum = 0;
769 record->header.fill = 0;
770 ptr = (unsigned char *) &record->pad[0];
772 for (i = 0; i < size; i++)
774 record->header.check_sum = 0xff & (-checksum);
775 if (bfd_bwrite ((void *) record, (bfd_size_type) size, abfd) != size)
781 /* Write out all the symbols. */
784 oasys_write_syms (bfd *abfd)
787 asymbol **generic = bfd_get_outsymbols (abfd);
788 unsigned int index = 0;
790 for (count = 0; count < bfd_get_symcount (abfd); count++)
792 oasys_symbol_record_type symbol;
793 asymbol *const g = generic[count];
794 const char *src = g->name;
795 char *dst = symbol.name;
798 if (bfd_is_com_section (g->section))
800 symbol.relb = RELOCATION_TYPE_COM;
801 H_PUT_16 (abfd, index, symbol.refno);
804 else if (bfd_is_abs_section (g->section))
806 symbol.relb = RELOCATION_TYPE_ABS;
807 H_PUT_16 (abfd, 0, symbol.refno);
809 else if (bfd_is_und_section (g->section))
811 symbol.relb = RELOCATION_TYPE_UND;
812 H_PUT_16 (abfd, index, symbol.refno);
813 /* Overload the value field with the output index number */
816 else if (g->flags & BSF_DEBUGGING)
821 if (g->section == NULL)
822 /* Sometime, the oasys tools give out a symbol with illegal
823 bits in it, we'll output it in the same broken way. */
824 symbol.relb = RELOCATION_TYPE_REL | 0;
826 symbol.relb = RELOCATION_TYPE_REL | g->section->output_section->target_index;
828 H_PUT_16 (abfd, 0, symbol.refno);
831 #ifdef UNDERSCORE_HACK
841 H_PUT_32 (abfd, g->value, symbol.value);
843 if (g->flags & BSF_LOCAL)
845 if (! oasys_write_record (abfd,
846 oasys_record_is_local_enum,
847 (oasys_record_union_type *) & symbol,
848 offsetof (oasys_symbol_record_type,
854 if (! oasys_write_record (abfd,
855 oasys_record_is_symbol_enum,
856 (oasys_record_union_type *) & symbol,
857 offsetof (oasys_symbol_record_type,
861 g->value = index - 1;
867 /* Write a section header for each section. */
870 oasys_write_sections (bfd *abfd)
873 static oasys_section_record_type out;
875 for (s = abfd->sections; s != NULL; s = s->next)
877 if (!ISDIGIT (s->name[0]))
879 (*_bfd_error_handler)
880 (_("%s: can not represent section `%s' in oasys"),
881 bfd_get_filename (abfd), s->name);
882 bfd_set_error (bfd_error_nonrepresentable_section);
885 out.relb = RELOCATION_TYPE_REL | s->target_index;
886 H_PUT_32 (abfd, s->size, out.value);
887 H_PUT_32 (abfd, s->vma, out.vma);
889 if (! oasys_write_record (abfd,
890 oasys_record_is_section_enum,
891 (oasys_record_union_type *) & out,
899 oasys_write_header (bfd *abfd)
901 /* Create and write the header. */
902 oasys_header_record_type r;
903 size_t length = strlen (abfd->filename);
905 if (length > (size_t) sizeof (r.module_name))
906 length = sizeof (r.module_name);
908 (void) memcpy (r.module_name, abfd->filename, length);
909 (void) memset (r.module_name + length, ' ', sizeof (r.module_name) - length);
911 r.version_number = OASYS_VERSION_NUMBER;
912 r.rev_number = OASYS_REV_NUMBER;
914 return oasys_write_record (abfd, oasys_record_is_header_enum,
915 (oasys_record_union_type *) & r,
916 offsetof (oasys_header_record_type,
921 oasys_write_end (bfd *abfd)
923 oasys_end_record_type end;
924 unsigned char null = 0;
926 end.relb = RELOCATION_TYPE_ABS;
927 H_PUT_32 (abfd, abfd->start_address, end.entry);
928 H_PUT_16 (abfd, 0, end.fill);
930 if (! oasys_write_record (abfd,
931 oasys_record_is_end_enum,
932 (oasys_record_union_type *) & end,
936 return bfd_bwrite ((void *) &null, (bfd_size_type) 1, abfd) == 1;
940 comp (const void * ap, const void * bp)
942 arelent *a = *((arelent **) ap);
943 arelent *b = *((arelent **) bp);
945 return a->address - b->address;
949 oasys_write_data (bfd *abfd)
953 for (s = abfd->sections; s != NULL; s = s->next)
955 if (s->flags & SEC_LOAD)
957 bfd_byte *raw_data = oasys_per_section (s)->data;
958 oasys_data_record_type processed_data;
959 bfd_size_type current_byte_index = 0;
960 unsigned int relocs_to_go = s->reloc_count;
961 arelent **p = s->orelocation;
963 if (s->reloc_count != 0)
964 /* Sort the reloc records so it's easy to insert the relocs into the
966 qsort (s->orelocation, s->reloc_count, sizeof (arelent **), comp);
968 current_byte_index = 0;
969 processed_data.relb = s->target_index | RELOCATION_TYPE_REL;
971 while (current_byte_index < s->size)
973 /* Scan forwards by eight bytes or however much is left and see if
974 there are any relocations going on. */
975 bfd_byte *mod = &processed_data.data[0];
976 bfd_byte *dst = &processed_data.data[1];
981 H_PUT_32 (abfd, s->vma + current_byte_index,
982 processed_data.addr);
984 /* Don't start a relocation unless you're sure you can finish it
985 within the same data record. The worst case relocation is a
986 4-byte relocatable value which is split across two modification
987 bytes (1 relocation byte + 2 symbol reference bytes + 2 data +
988 1 modification byte + 2 data = 8 bytes total). That's where
989 the magic number 8 comes from. */
990 while (current_byte_index < s->size && dst <=
991 & processed_data.data[sizeof (processed_data.data) - 8])
993 if (relocs_to_go != 0)
997 /* There is a relocation, is it for this byte ? */
998 if (r->address == current_byte_index)
1002 /* If this is coming from an unloadable section then copy
1004 if (raw_data == NULL)
1007 *dst++ = *raw_data++;
1015 current_byte_index++;
1018 /* Don't write a useless null modification byte. */
1022 if (! (oasys_write_record
1023 (abfd, oasys_record_is_data_enum,
1024 ((oasys_record_union_type *) &processed_data),
1025 (size_t) (dst - (bfd_byte *) &processed_data))))
1035 oasys_write_object_contents (bfd *abfd)
1037 if (! oasys_write_header (abfd))
1039 if (! oasys_write_syms (abfd))
1041 if (! oasys_write_sections (abfd))
1043 if (! oasys_write_data (abfd))
1045 if (! oasys_write_end (abfd))
1050 /* Set section contents is complicated with OASYS since the format is
1051 not a byte image, but a record stream. */
1054 oasys_set_section_contents (bfd *abfd,
1056 const void * location,
1058 bfd_size_type count)
1062 if (oasys_per_section (section)->data == NULL)
1064 oasys_per_section (section)->data = bfd_alloc (abfd, section->size);
1065 if (!oasys_per_section (section)->data)
1068 (void) memcpy ((void *) (oasys_per_section (section)->data + offset),
1069 location, (size_t) count);
1076 /* Native-level interface to symbols. */
1078 /* We read the symbols into a buffer, which is discarded when this
1079 function exits. We read the strings into a buffer large enough to
1080 hold them all plus all the cached symbol entries. */
1083 oasys_make_empty_symbol (bfd *abfd)
1085 bfd_size_type amt = sizeof (oasys_symbol_type);
1086 oasys_symbol_type *new = bfd_zalloc (abfd, amt);
1090 new->symbol.the_bfd = abfd;
1091 return &new->symbol;
1094 /* User should have checked the file flags; perhaps we should return
1095 BFD_NO_MORE_SYMBOLS if there are none? */
1098 oasys_openr_next_archived_file (bfd *arch, bfd *prev)
1100 oasys_ar_data_type *ar = OASYS_AR_DATA (arch);
1101 oasys_module_info_type *p;
1103 /* Take the next one from the arch state, or reset. */
1105 /* Reset the index - the first two entries are bogus. */
1106 ar->module_index = 0;
1108 p = ar->module + ar->module_index;
1111 if (ar->module_index <= ar->module_count)
1113 if (p->abfd == NULL)
1115 p->abfd = _bfd_create_empty_archive_element_shell (arch);
1116 p->abfd->origin = p->pos;
1117 p->abfd->filename = p->name;
1119 /* Fixup a pointer to this element for the member. */
1120 p->abfd->arelt_data = (void *) p;
1125 bfd_set_error (bfd_error_no_more_archived_files);
1130 oasys_find_nearest_line (bfd *abfd ATTRIBUTE_UNUSED,
1131 asection *section ATTRIBUTE_UNUSED,
1132 asymbol **symbols ATTRIBUTE_UNUSED,
1133 bfd_vma offset ATTRIBUTE_UNUSED,
1134 const char **filename_ptr ATTRIBUTE_UNUSED,
1135 const char **functionname_ptr ATTRIBUTE_UNUSED,
1136 unsigned int *line_ptr ATTRIBUTE_UNUSED)
1142 oasys_find_inliner_info (bfd *abfd ATTRIBUTE_UNUSED,
1143 const char **filename_ptr ATTRIBUTE_UNUSED,
1144 const char **functionname_ptr ATTRIBUTE_UNUSED,
1145 unsigned int *line_ptr ATTRIBUTE_UNUSED)
1151 oasys_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
1153 oasys_module_info_type *mod = (oasys_module_info_type *) abfd->arelt_data;
1157 bfd_set_error (bfd_error_invalid_operation);
1161 buf->st_size = mod->size;
1162 buf->st_mode = 0666;
1167 oasys_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
1168 struct bfd_link_info *info ATTRIBUTE_UNUSED)
1173 #define oasys_close_and_cleanup _bfd_generic_close_and_cleanup
1174 #define oasys_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
1175 #define oasys_slurp_armap bfd_true
1176 #define oasys_slurp_extended_name_table bfd_true
1177 #define oasys_construct_extended_name_table ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) bfd_true)
1178 #define oasys_truncate_arname bfd_dont_truncate_arname
1179 #define oasys_write_armap ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) bfd_true)
1180 #define oasys_read_ar_hdr bfd_nullvoidptr
1181 #define oasys_get_elt_at_index _bfd_generic_get_elt_at_index
1182 #define oasys_update_armap_timestamp bfd_true
1183 #define oasys_bfd_is_local_label_name bfd_generic_is_local_label_name
1184 #define oasys_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
1185 #define oasys_get_lineno _bfd_nosymbols_get_lineno
1186 #define oasys_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
1187 #define oasys_read_minisymbols _bfd_generic_read_minisymbols
1188 #define oasys_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
1189 #define oasys_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
1190 #define oasys_set_arch_mach bfd_default_set_arch_mach
1191 #define oasys_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
1192 #define oasys_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
1193 #define oasys_bfd_relax_section bfd_generic_relax_section
1194 #define oasys_bfd_gc_sections bfd_generic_gc_sections
1195 #define oasys_bfd_merge_sections bfd_generic_merge_sections
1196 #define oasys_bfd_is_group_section bfd_generic_is_group_section
1197 #define oasys_bfd_discard_group bfd_generic_discard_group
1198 #define oasys_section_already_linked _bfd_generic_section_already_linked
1199 #define oasys_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
1200 #define oasys_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
1201 #define oasys_bfd_link_add_symbols _bfd_generic_link_add_symbols
1202 #define oasys_bfd_link_just_syms _bfd_generic_link_just_syms
1203 #define oasys_bfd_final_link _bfd_generic_final_link
1204 #define oasys_bfd_link_split_section _bfd_generic_link_split_section
1206 const bfd_target oasys_vec =
1208 "oasys", /* Name. */
1209 bfd_target_oasys_flavour,
1210 BFD_ENDIAN_BIG, /* Target byte order. */
1211 BFD_ENDIAN_BIG, /* Target headers byte order. */
1212 (HAS_RELOC | EXEC_P | /* Object flags. */
1213 HAS_LINENO | HAS_DEBUG |
1214 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
1215 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
1216 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
1217 0, /* Leading underscore. */
1218 ' ', /* AR_pad_char. */
1219 16, /* AR_max_namelen. */
1220 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1221 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1222 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
1223 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
1224 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
1225 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
1228 oasys_object_p, /* bfd_check_format. */
1232 { /* bfd_set_format. */
1235 _bfd_generic_mkarchive,
1238 { /* bfd_write_contents. */
1240 oasys_write_object_contents,
1241 _bfd_write_archive_contents,
1245 BFD_JUMP_TABLE_GENERIC (oasys),
1246 BFD_JUMP_TABLE_COPY (_bfd_generic),
1247 BFD_JUMP_TABLE_CORE (_bfd_nocore),
1248 BFD_JUMP_TABLE_ARCHIVE (oasys),
1249 BFD_JUMP_TABLE_SYMBOLS (oasys),
1250 BFD_JUMP_TABLE_RELOCS (oasys),
1251 BFD_JUMP_TABLE_WRITE (oasys),
1252 BFD_JUMP_TABLE_LINK (oasys),
1253 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),