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- /* BFD back-end for oasys objects.
- Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
- Written by Steve Chamberlain of Cygnus Support, <sac@cygnus.com>.
-
- This file is part of BFD, the Binary File Descriptor library.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #define UNDERSCORE_HACK 1
- #include "bfd.h"
- #include "sysdep.h"
- #include "libbfd.h"
- #include "oasys.h"
- #include "liboasys.h"
-
- /* XXX - FIXME. offsetof belongs in the system-specific files in
- ../include/sys. */
- /* Define offsetof for those systems which lack it */
-
- #ifndef offsetof
- #define offsetof(type, identifier) (size_t) &(((type *) 0)->identifier)
- #endif
-
- /* Read in all the section data and relocation stuff too */
- PROTO(static boolean,oasys_slurp_section_data,(bfd *CONST abfd));
-
- static void
- DEFUN(oasys_read_record,(abfd, record),
- bfd *CONST abfd AND
- oasys_record_union_type *record)
- {
-
- bfd_read((PTR)record, 1, sizeof(record->header), abfd);
-
- if ((size_t) record->header.length <= (size_t) sizeof (record->header))
- return;
- bfd_read((PTR)(((char *)record )+ sizeof(record->header)),
- 1, record->header.length - sizeof(record->header),
- abfd);
- }
- static size_t
- DEFUN(oasys_string_length,(record),
- oasys_record_union_type *record)
- {
- return record->header.length
- - ((char *)record->symbol.name - (char *)record);
- }
-
- /*****************************************************************************/
-
- /*
-
- Slurp the symbol table by reading in all the records at the start file
- till we get to the first section record.
-
- We'll sort the symbolss into two lists, defined and undefined. The
- undefined symbols will be placed into the table according to their
- refno.
-
- We do this by placing all undefined symbols at the front of the table
- moving in, and the defined symbols at the end of the table moving back.
-
- */
-
- static boolean
- DEFUN(oasys_slurp_symbol_table,(abfd),
- bfd * CONST abfd)
- {
- oasys_record_union_type record;
- oasys_data_type *data = OASYS_DATA(abfd);
- boolean loop = true;
- asymbol *dest_defined;
- asymbol *dest;
- char *string_ptr;
-
-
- if (data->symbols != (asymbol *)NULL) {
- return true;
- }
- /* Buy enough memory for all the symbols and all the names */
- data->symbols =
- (asymbol *)bfd_alloc(abfd, sizeof(asymbol) * abfd->symcount);
- #ifdef UNDERSCORE_HACK
- /* buy 1 more char for each symbol to keep the underscore in*/
- data->strings = bfd_alloc(abfd, data->symbol_string_length +
- abfd->symcount);
- #else
- data->strings = bfd_alloc(abfd, data->symbol_string_length);
- #endif
-
-
- dest_defined = data->symbols + abfd->symcount -1;
-
- string_ptr = data->strings;
- bfd_seek(abfd, (file_ptr)0, SEEK_SET);
- while (loop) {
-
- oasys_read_record(abfd, &record);
- switch (record.header.type) {
- case oasys_record_is_header_enum:
- break;
- case oasys_record_is_local_enum:
- case oasys_record_is_symbol_enum:
- {
- int flag = record.header.type == (int)oasys_record_is_local_enum ?
- (BSF_LOCAL) : (BSF_GLOBAL | BSF_EXPORT);
-
-
- size_t length = oasys_string_length(&record);
- switch (record.symbol.relb & RELOCATION_TYPE_BITS) {
- case RELOCATION_TYPE_ABS:
- dest = dest_defined--;
- dest->section = &bfd_abs_section;
- dest->flags = 0;
-
- break;
- case RELOCATION_TYPE_REL:
- dest = dest_defined--;
- dest->section =
- OASYS_DATA(abfd)->sections[record.symbol.relb &
- RELOCATION_SECT_BITS];
- if (record.header.type == (int)oasys_record_is_local_enum)
- {
- dest->flags = BSF_LOCAL;
- if (dest->section ==(asection *)(~0)) {
- /* It seems that sometimes internal symbols are tied up, but
- still get output, even though there is no
- section */
- dest->section = 0;
- }
- }
- else {
-
- dest->flags = flag;
- }
- break;
- case RELOCATION_TYPE_UND:
- dest = data->symbols + bfd_h_get_16(abfd, (bfd_byte *)&record.symbol.refno[0]);
- dest->section = &bfd_und_section;
- break;
- case RELOCATION_TYPE_COM:
- dest = dest_defined--;
- dest->name = string_ptr;
- dest->the_bfd = abfd;
-
- dest->section = &bfd_com_section;
-
- break;
- default:
- dest = dest_defined--;
- BFD_ASSERT(0);
- break;
- }
- dest->name = string_ptr;
- dest->the_bfd = abfd;
- dest->udata = (PTR)NULL;
- dest->value = bfd_h_get_32(abfd, (bfd_byte *)&record.symbol.value[0]);
-
- #ifdef UNDERSCORE_HACK
- if (record.symbol.name[0] != '_') {
- string_ptr[0] = '_';
- string_ptr++;
- }
- #endif
- memcpy(string_ptr, record.symbol.name, length);
-
-
- string_ptr[length] =0;
- string_ptr += length +1;
- }
- break;
- default:
- loop = false;
- }
- }
- return true;
- }
-
- static unsigned int
- DEFUN(oasys_get_symtab_upper_bound,(abfd),
- bfd *CONST abfd)
- {
- oasys_slurp_symbol_table (abfd);
-
- return (abfd->symcount+1) * (sizeof (oasys_symbol_type *));
- }
-
- /*
- */
-
- extern bfd_target oasys_vec;
-
- unsigned int
- DEFUN(oasys_get_symtab,(abfd, location),
- bfd *abfd AND
- asymbol **location)
- {
- asymbol *symbase ;
- unsigned int counter ;
- if (oasys_slurp_symbol_table(abfd) == false) {
- return 0;
- }
- symbase = OASYS_DATA(abfd)->symbols;
- for (counter = 0; counter < abfd->symcount; counter++) {
- *(location++) = symbase++;
- }
- *location = 0;
- return abfd->symcount;
- }
-
- /***********************************************************************
- * archive stuff
- */
-
- static bfd_target *
- DEFUN(oasys_archive_p,(abfd),
- bfd *abfd)
- {
- oasys_archive_header_type header;
- oasys_extarchive_header_type header_ext;
- unsigned int i;
- file_ptr filepos;
- bfd_seek(abfd, (file_ptr) 0, false);
-
-
- bfd_read((PTR)&header_ext, 1, sizeof(header_ext), abfd);
-
-
- header.version = bfd_h_get_32(abfd, (bfd_byte *)header_ext.version);
- header.mod_count = bfd_h_get_32(abfd, (bfd_byte *)header_ext.mod_count);
- header.mod_tbl_offset = bfd_h_get_32(abfd, (bfd_byte *)header_ext.mod_tbl_offset);
- header.sym_tbl_size = bfd_h_get_32(abfd, (bfd_byte *)header_ext.sym_tbl_size);
- header.sym_count = bfd_h_get_32(abfd, (bfd_byte *)header_ext.sym_count);
- header.sym_tbl_offset = bfd_h_get_32(abfd, (bfd_byte *)header_ext.sym_tbl_offset);
- header.xref_count = bfd_h_get_32(abfd, (bfd_byte *)header_ext.xref_count);
- header.xref_lst_offset = bfd_h_get_32(abfd, (bfd_byte *)header_ext.xref_lst_offset);
-
- /*
- There isn't a magic number in an Oasys archive, so the best we
- can do to verify reasnableness is to make sure that the values in
- the header are too weird
- */
-
- if (header.version>10000 ||
- header.mod_count>10000 ||
- header.sym_count>100000 ||
- header.xref_count > 100000) return (bfd_target *)NULL;
-
- /*
- That all worked, lets buy the space for the header and read in
- the headers.
- */
- {
- oasys_ar_data_type *ar =
- (oasys_ar_data_type*) bfd_alloc(abfd, sizeof(oasys_ar_data_type));
-
-
- oasys_module_info_type *module =
- (oasys_module_info_type*)
- bfd_alloc(abfd, sizeof(oasys_module_info_type) * header.mod_count);
-
-
- oasys_module_table_type record;
-
-
- abfd->tdata.oasys_ar_data = ar;
- ar->module = module;
- ar->module_count = header.mod_count;
-
-
- filepos = header.mod_tbl_offset;
- for (i = 0; i < header.mod_count; i++) {
- bfd_seek(abfd, filepos, SEEK_SET);
-
- /* There are two ways of specifying the archive header */
-
- if (0) {
- oasys_extmodule_table_type_a_type record_ext;
- bfd_read((PTR)&record_ext, 1, sizeof(record_ext), abfd);
-
- record.mod_size = bfd_h_get_32(abfd, (bfd_byte *)record_ext.mod_size);
- record.file_offset = bfd_h_get_32(abfd,
- (bfd_byte *) record_ext.file_offset);
-
- record.dep_count = bfd_h_get_32(abfd, (bfd_byte *)record_ext.dep_count);
- record.depee_count = bfd_h_get_32(abfd,(bfd_byte *) record_ext.depee_count);
- record.sect_count = bfd_h_get_32(abfd, (bfd_byte *) record_ext.sect_count);
-
-
- module[i].name = bfd_alloc(abfd,33);
-
- memcpy(module[i].name, record_ext.mod_name, 33);
- filepos +=
- sizeof(record_ext) +
- record.dep_count * 4 +
- record.depee_count * 4 +
- record.sect_count * 8 + 187;
- }
- else {
- oasys_extmodule_table_type_b_type record_ext;
- bfd_read((PTR)&record_ext, 1, sizeof(record_ext), abfd);
-
- record.mod_size = bfd_h_get_32(abfd, (bfd_byte *) record_ext.mod_size);
- record.file_offset = bfd_h_get_32(abfd,
- (bfd_byte *)record_ext.file_offset);
-
- record.dep_count = bfd_h_get_32(abfd, (bfd_byte *) record_ext.dep_count);
- record.depee_count = bfd_h_get_32(abfd, (bfd_byte *) record_ext.depee_count);
- record.sect_count = bfd_h_get_32(abfd, (bfd_byte *) record_ext.sect_count);
- record.module_name_size = bfd_h_get_32(abfd, (bfd_byte *) record_ext.mod_name_length);
-
- module[i].name = bfd_alloc(abfd,record.module_name_size + 1);
- bfd_read((PTR)module[i].name, 1, record.module_name_size, abfd);
- module[i].name[record.module_name_size] = 0;
- filepos +=
- sizeof(record_ext) +
- record.dep_count * 4 +
- record.module_name_size + 1;
-
- }
-
-
- module[i].size = record.mod_size;
- module[i].pos = record.file_offset;
- module[i].abfd = 0;
- }
-
- }
- return abfd->xvec;
- }
-
- static boolean
- DEFUN(oasys_mkobject,(abfd),
- bfd *abfd)
- {
-
- abfd->tdata.oasys_obj_data = (oasys_data_type*)bfd_alloc(abfd, sizeof(oasys_data_type));
- return true;
- }
-
- #define MAX_SECS 16
- static bfd_target *
- DEFUN(oasys_object_p,(abfd),
- bfd *abfd)
- {
- oasys_data_type *oasys;
- oasys_data_type *save = OASYS_DATA(abfd);
- boolean loop = true;
- boolean had_usefull = false;
-
- abfd->tdata.oasys_obj_data = 0;
- oasys_mkobject(abfd);
- oasys = OASYS_DATA(abfd);
- memset((PTR)oasys->sections, 0xff, sizeof(oasys->sections));
-
- /* Point to the start of the file */
- bfd_seek(abfd, (file_ptr)0, SEEK_SET);
- oasys->symbol_string_length = 0;
- /* Inspect the records, but only keep the section info -
- remember the size of the symbols
- */
- oasys->first_data_record = 0;
- while (loop) {
- oasys_record_union_type record;
- oasys_read_record(abfd, &record);
- if ((size_t)record.header.length < (size_t)sizeof(record.header))
- goto fail;
-
-
- switch ((oasys_record_enum_type)(record.header.type)) {
- case oasys_record_is_header_enum:
- had_usefull = true;
- break;
- case oasys_record_is_symbol_enum:
- case oasys_record_is_local_enum:
- /* Count symbols and remember their size for a future malloc */
- abfd->symcount++;
- oasys->symbol_string_length += 1 + oasys_string_length(&record);
- had_usefull = true;
- break;
- case oasys_record_is_section_enum:
- {
- asection *s;
- char *buffer;
- unsigned int section_number;
- if (record.section.header.length != sizeof(record.section))
- {
- goto fail;
- }
- buffer = bfd_alloc(abfd, 3);
- section_number= record.section.relb & RELOCATION_SECT_BITS;
- sprintf(buffer,"%u", section_number);
- s = bfd_make_section(abfd,buffer);
- oasys->sections[section_number] = s;
- switch (record.section.relb & RELOCATION_TYPE_BITS) {
- case RELOCATION_TYPE_ABS:
- case RELOCATION_TYPE_REL:
- break;
- case RELOCATION_TYPE_UND:
- case RELOCATION_TYPE_COM:
- BFD_FAIL();
- }
-
- s->_raw_size = bfd_h_get_32(abfd, (bfd_byte *) & record.section.value[0]) ;
- s->vma = bfd_h_get_32(abfd, (bfd_byte *)&record.section.vma[0]);
- s->flags= 0;
- had_usefull = true;
- }
- break;
- case oasys_record_is_data_enum:
- oasys->first_data_record = bfd_tell(abfd) - record.header.length;
- case oasys_record_is_debug_enum:
- case oasys_record_is_module_enum:
- case oasys_record_is_named_section_enum:
- case oasys_record_is_end_enum:
- if (had_usefull == false) goto fail;
- loop = false;
- break;
- default:
- goto fail;
- }
- }
- oasys->symbols = (asymbol *)NULL;
- /*
- Oasys support several architectures, but I can't see a simple way
- to discover which one is in a particular file - we'll guess
- */
- bfd_default_set_arch_mach(abfd, bfd_arch_m68k, 0);
- if (abfd->symcount != 0) {
- abfd->flags |= HAS_SYMS;
- }
-
- /*
- We don't know if a section has data until we've read it..
- */
-
- oasys_slurp_section_data(abfd);
-
-
- return abfd->xvec;
-
- fail:
- (void) bfd_release(abfd, oasys);
- abfd->tdata.oasys_obj_data = save;
- return (bfd_target *)NULL;
- }
-
-
- static void
- DEFUN(oasys_print_symbol,(ignore_abfd, afile, symbol, how),
- bfd *ignore_abfd AND
- PTR afile AND
- asymbol *symbol AND
- bfd_print_symbol_type how)
- {
- FILE *file = (FILE *)afile;
-
- switch (how) {
- case bfd_print_symbol_name:
- case bfd_print_symbol_more:
- fprintf(file,"%s", symbol->name);
- break;
- case bfd_print_symbol_all:
- case bfd_print_symbol_nm:
- {
- CONST char *section_name = symbol->section == (asection *)NULL ?
- (CONST char *) "*abs" : symbol->section->name;
-
- bfd_print_symbol_vandf((PTR)file,symbol);
-
- fprintf(file," %-5s %s",
- section_name,
- symbol->name);
- }
- break;
- }
- }
- /*
- The howto table is build using the top two bits of a reloc byte to
- index into it. The bits are PCREL,WORD/LONG
- */
- static reloc_howto_type howto_table[]=
- {
-
- HOWTO( 0, 0, 1, 16, false,0, true,true,0,"abs16",true,0x0000ffff, 0x0000ffff,false),
- HOWTO( 0, 0, 2, 32, false,0, true,true,0,"abs32",true,0xffffffff, 0xffffffff,false),
- HOWTO( 0, 0, 1, 16, true,0, true,true,0,"pcrel16",true,0x0000ffff, 0x0000ffff,false),
- HOWTO( 0, 0, 2, 32, true,0, true,true,0,"pcrel32",true,0xffffffff, 0xffffffff,false)
- };
-
- /* Read in all the section data and relocation stuff too */
- static boolean
- DEFUN(oasys_slurp_section_data,(abfd),
- bfd *CONST abfd)
- {
- oasys_record_union_type record;
- oasys_data_type *data = OASYS_DATA(abfd);
- boolean loop = true;
-
- oasys_per_section_type *per ;
-
- asection *s;
-
- /* See if the data has been slurped already .. */
- for (s = abfd->sections; s != (asection *)NULL; s= s->next) {
- per = oasys_per_section(s);
- if (per->initialized == true)
- return true;
- }
-
- if (data->first_data_record == 0) return true;
-
- bfd_seek(abfd, data->first_data_record, SEEK_SET);
- while (loop) {
- oasys_read_record(abfd, &record);
- switch (record.header.type)
- {
- case oasys_record_is_header_enum:
- break;
- case oasys_record_is_data_enum:
- {
-
- uint8e_type *src = record.data.data;
- uint8e_type *end_src = ((uint8e_type *)&record) +
- record.header.length;
- unsigned int relbit;
- bfd_byte *dst_ptr ;
- bfd_byte *dst_base_ptr ;
- unsigned int count;
- asection * section =
- data->sections[record.data.relb & RELOCATION_SECT_BITS];
- bfd_vma dst_offset ;
- per = oasys_per_section(section);
-
-
- if (per->initialized == false)
- {
- per->data = (bfd_byte *) bfd_zalloc(abfd, section->_raw_size);
- per->reloc_tail_ptr = (oasys_reloc_type **)&(section->relocation);
- per->had_vma = false;
- per->initialized = true;
- section->reloc_count = 0;
- section->flags = SEC_ALLOC;
- }
-
- dst_offset = bfd_h_get_32(abfd, record.data.addr) ;
- if (per->had_vma == false) {
- /* Take the first vma we see as the base */
-
- section->vma = dst_offset;
- per->had_vma = true;
- }
-
-
- dst_offset -= section->vma;
-
-
- dst_base_ptr = oasys_per_section(section)->data;
- dst_ptr = oasys_per_section(section)->data +
- dst_offset;
-
- if (src < end_src) {
- section->flags |= SEC_LOAD | SEC_HAS_CONTENTS;
- }
- while (src < end_src) {
- uint8e_type mod_byte = *src++;
- uint32_type gap = end_src - src;
-
- count = 8;
- if (mod_byte == 0 && gap >= 8) {
- dst_ptr[0] = src[0];
- dst_ptr[1] = src[1];
- dst_ptr[2] = src[2];
- dst_ptr[3] = src[3];
- dst_ptr[4] = src[4];
- dst_ptr[5] = src[5];
- dst_ptr[6] = src[6];
- dst_ptr[7] = src[7];
- dst_ptr+= 8;
- src += 8;
- }
- else {
- for (relbit = 1; count-- != 0 && src < end_src; relbit <<=1)
- {
- if (relbit & mod_byte)
- {
- uint8e_type reloc = *src;
- /* This item needs to be relocated */
- switch (reloc & RELOCATION_TYPE_BITS) {
- case RELOCATION_TYPE_ABS:
-
- break;
-
- case RELOCATION_TYPE_REL:
- {
- /* Relocate the item relative to the section */
- oasys_reloc_type *r =
- (oasys_reloc_type *)
- bfd_alloc(abfd,
- sizeof(oasys_reloc_type));
- *(per->reloc_tail_ptr) = r;
- per->reloc_tail_ptr = &r->next;
- r->next= (oasys_reloc_type *)NULL;
- /* Reference to undefined symbol */
- src++;
- /* There is no symbol */
- r->symbol = 0;
- /* Work out the howto */
- abort();
- #if 0
- r->relent.section =
- data->sections[reloc &
- RELOCATION_SECT_BITS];
-
- r->relent.addend = -
- r->relent.section->vma;
- #endif
- r->relent.address = dst_ptr - dst_base_ptr;
- r->relent.howto = &howto_table[reloc>>6];
- r->relent.sym_ptr_ptr = (asymbol **)NULL;
- section->reloc_count++;
-
- /* Fake up the data to look like it's got the -ve pc in it, this makes
- it much easier to convert into other formats. This is done by
- hitting the addend.
- */
- if (r->relent.howto->pc_relative == true) {
- r->relent.addend -= dst_ptr - dst_base_ptr;
- }
-
-
- }
- break;
-
-
- case RELOCATION_TYPE_UND:
- {
- oasys_reloc_type *r =
- (oasys_reloc_type *)
- bfd_alloc(abfd,
- sizeof(oasys_reloc_type));
- *(per->reloc_tail_ptr) = r;
- per->reloc_tail_ptr = &r->next;
- r->next= (oasys_reloc_type *)NULL;
- /* Reference to undefined symbol */
- src++;
- /* Get symbol number */
- r->symbol = (src[0]<<8) | src[1];
- /* Work out the howto */
- abort();
-
- #if 0
- r->relent.section = (asection
- *)NULL;
- #endif
- r->relent.addend = 0;
- r->relent.address = dst_ptr - dst_base_ptr;
- r->relent.howto = &howto_table[reloc>>6];
- r->relent.sym_ptr_ptr = (asymbol **)NULL;
- section->reloc_count++;
-
- src+=2;
- /* Fake up the data to look like it's got the -ve pc in it, this makes
- it much easier to convert into other formats. This is done by
- hitting the addend.
- */
- if (r->relent.howto->pc_relative == true) {
- r->relent.addend -= dst_ptr - dst_base_ptr;
- }
-
-
-
- }
- break;
- case RELOCATION_TYPE_COM:
- BFD_FAIL();
- }
- }
- *dst_ptr++ = *src++;
- }
- }
- }
- }
- break;
- case oasys_record_is_local_enum:
- case oasys_record_is_symbol_enum:
- case oasys_record_is_section_enum:
- break;
- default:
- loop = false;
- }
- }
-
- return true;
-
- }
-
-
-
- bfd_error_vector_type bfd_error_vector;
-
- static boolean
- DEFUN(oasys_new_section_hook,(abfd, newsect),
- bfd *abfd AND
- asection *newsect)
- {
- newsect->used_by_bfd = (PTR)
- bfd_alloc(abfd, sizeof(oasys_per_section_type));
- oasys_per_section( newsect)->data = (bfd_byte *)NULL;
- oasys_per_section(newsect)->section = newsect;
- oasys_per_section(newsect)->offset = 0;
- oasys_per_section(newsect)->initialized = false;
- newsect->alignment_power = 1;
- /* Turn the section string into an index */
-
- sscanf(newsect->name,"%u", &newsect->target_index);
-
- return true;
- }
-
-
- static unsigned int
- DEFUN(oasys_get_reloc_upper_bound, (abfd, asect),
- bfd *abfd AND
- sec_ptr asect)
- {
- oasys_slurp_section_data(abfd);
- return (asect->reloc_count+1) * sizeof(arelent *);
- }
-
- static boolean
- DEFUN(oasys_get_section_contents,(abfd, section, location, offset, count),
- bfd *abfd AND
- sec_ptr section AND
- PTR location AND
- file_ptr offset AND
- bfd_size_type count)
- {
- oasys_per_section_type *p = (oasys_per_section_type *) section->used_by_bfd;
- oasys_slurp_section_data(abfd);
- if (p->initialized == false)
- {
- (void) memset(location, 0, (int)count);
- }
- else
- {
- (void) memcpy(location,(PTR)( p->data + offset), (int)count);
- }
- return true;
- }
-
-
- unsigned int
- DEFUN(oasys_canonicalize_reloc,(ignore_abfd, section, relptr, symbols),
- bfd *ignore_abfd AND
- sec_ptr section AND
- arelent **relptr AND
- asymbol **symbols)
- {
- unsigned int reloc_count = 0;
- oasys_reloc_type *src = (oasys_reloc_type *)(section->relocation);
- while (src != (oasys_reloc_type *)NULL) {
- abort();
-
- #if 0
- if (src->relent.section == (asection *)NULL)
- {
- src->relent.sym_ptr_ptr = symbols + src->symbol;
- }
- #endif
-
- *relptr ++ = &src->relent;
- src = src->next;
- reloc_count++;
- }
- *relptr = (arelent *)NULL;
- return section->reloc_count = reloc_count;
- }
-
-
-
-
- /* Writing */
-
-
- /* Calculate the checksum and write one record */
- static void
- DEFUN(oasys_write_record,(abfd, type, record, size),
- bfd *CONST abfd AND
- CONST oasys_record_enum_type type AND
- oasys_record_union_type *record AND
- CONST size_t size)
- {
- int checksum;
- size_t i;
- uint8e_type *ptr;
- record->header.length = size;
- record->header.type = (int)type;
- record->header.check_sum = 0;
- record->header.fill = 0;
- ptr = &record->pad[0];
- checksum = 0;
- for (i = 0; i < size; i++) {
- checksum += *ptr++;
- }
- record->header.check_sum = 0xff & (- checksum);
- bfd_write((PTR)record, 1, size, abfd);
- }
-
-
- /* Write out all the symbols */
- static void
- DEFUN(oasys_write_syms, (abfd),
- bfd * CONST abfd)
- {
- unsigned int count;
- asymbol **generic = bfd_get_outsymbols(abfd);
- unsigned int index = 0;
- for (count = 0; count < bfd_get_symcount(abfd); count++) {
-
- oasys_symbol_record_type symbol;
- asymbol * CONST g = generic[count];
-
- CONST char *src = g->name;
- char *dst = symbol.name;
- unsigned int l = 0;
-
- if (bfd_is_com_section (g->section)) {
- symbol.relb = RELOCATION_TYPE_COM;
- bfd_h_put_16(abfd, index, (uint8e_type *)(&symbol.refno[0]));
- index++;
- }
- else if (g->section == & bfd_abs_section) {
- symbol.relb = RELOCATION_TYPE_ABS;
- bfd_h_put_16(abfd, 0, (uint8e_type *)(&symbol.refno[0]));
-
- }
- else if (g->section == &bfd_und_section) {
- symbol.relb = RELOCATION_TYPE_UND ;
- bfd_h_put_16(abfd, index, (uint8e_type *)(&symbol.refno[0]));
- /* Overload the value field with the output index number */
- index++;
- }
- else if (g->flags & BSF_DEBUGGING) {
- /* throw it away */
- continue;
- }
- else {
- if (g->section == (asection *)NULL) {
- /* Sometime, the oasys tools give out a symbol with illegal
- bits in it, we'll output it in the same broken way */
-
- symbol.relb = RELOCATION_TYPE_REL | 0;
- }
- else {
- symbol.relb = RELOCATION_TYPE_REL |g->section->output_section->target_index;
- }
- bfd_h_put_16(abfd, 0, (uint8e_type *)(&symbol.refno[0]));
- }
- #ifdef UNDERSCORE_HACK
- if (src[l] == '_')
- dst[l++] = '.';
- #endif
- while (src[l]) {
- dst[l] = src[l];
- l++;
- }
-
- bfd_h_put_32(abfd, g->value, (bfd_byte*) symbol.value);
-
-
- if (g->flags & BSF_LOCAL) {
- oasys_write_record(abfd,
- oasys_record_is_local_enum,
- (oasys_record_union_type *) &symbol,
- offsetof(oasys_symbol_record_type, name[0]) + l);
- }
- else {
- oasys_write_record(abfd,
- oasys_record_is_symbol_enum,
- (oasys_record_union_type *) &symbol,
- offsetof(oasys_symbol_record_type, name[0]) + l);
- }
- g->value = index-1;
- }
- }
-
-
- /* Write a section header for each section */
- static void
- DEFUN(oasys_write_sections, (abfd),
- bfd *CONST abfd)
- {
- asection *s;
- static oasys_section_record_type out = {0};
-
- for (s = abfd->sections; s != (asection *)NULL; s = s->next) {
- if (!isdigit(s->name[0]))
- {
- bfd_error_vector.nonrepresentable_section(abfd,
- s->name);
- }
- out.relb = RELOCATION_TYPE_REL | s->target_index;
- bfd_h_put_32(abfd, s->_cooked_size, (bfd_byte *) out.value);
- bfd_h_put_32(abfd, s->vma, (bfd_byte *) out.vma);
-
- oasys_write_record(abfd,
- oasys_record_is_section_enum,
- (oasys_record_union_type *) &out,
- sizeof(out));
- }
- }
-
- static void
- DEFUN(oasys_write_header, (abfd),
- bfd *CONST abfd)
- {
- /* Create and write the header */
- oasys_header_record_type r;
- size_t length = strlen(abfd->filename);
- if (length > (size_t)sizeof(r.module_name)) {
- length = sizeof(r.module_name);
- }
-
- (void)memcpy(r.module_name,
- abfd->filename,
- length);
- (void)memset(r.module_name + length,
- ' ',
- sizeof(r.module_name) - length);
-
- r.version_number = OASYS_VERSION_NUMBER;
- r.rev_number = OASYS_REV_NUMBER;
- oasys_write_record(abfd,
- oasys_record_is_header_enum,
- (oasys_record_union_type *)&r,
- offsetof(oasys_header_record_type, description[0]));
-
-
-
- }
-
- static void
- DEFUN(oasys_write_end,(abfd),
- bfd *CONST abfd)
- {
- oasys_end_record_type end;
- uint8e_type null = 0;
- end.relb = RELOCATION_TYPE_ABS;
- bfd_h_put_32(abfd, abfd->start_address, (bfd_byte *)end.entry);
- bfd_h_put_16(abfd, 0, (bfd_byte *)end.fill);
- end.zero =0;
- oasys_write_record(abfd,
- oasys_record_is_end_enum,
- (oasys_record_union_type *)&end,
- sizeof(end));
- bfd_write((PTR)&null, 1, 1, abfd);
- }
-
- static int
- DEFUN(comp,(ap, bp),
- CONST PTR ap AND
- CONST PTR bp)
- {
- arelent *a = *((arelent **)ap);
- arelent *b = *((arelent **)bp);
- return a->address - b->address;
- }
-
- /*
- Writing data..
-
- */
- static void
- DEFUN(oasys_write_data, (abfd),
- bfd *CONST abfd)
- {
- asection *s;
- for (s = abfd->sections; s != (asection *)NULL; s = s->next) {
- if (s->flags & SEC_LOAD) {
- uint8e_type *raw_data = oasys_per_section(s)->data;
- oasys_data_record_type processed_data;
- bfd_size_type current_byte_index = 0;
- unsigned int relocs_to_go = s->reloc_count;
- arelent **p = s->orelocation;
- if (s->reloc_count != 0) {
- /* Sort the reloc records so it's easy to insert the relocs into the
- data */
-
- qsort(s->orelocation,
- s->reloc_count,
- sizeof(arelent **),
- comp);
- }
- current_byte_index = 0;
- processed_data.relb = s->target_index | RELOCATION_TYPE_REL;
-
- while (current_byte_index < s->_cooked_size)
- {
- /* Scan forwards by eight bytes or however much is left and see if
- there are any relocations going on */
- uint8e_type *mod = &processed_data.data[0];
- uint8e_type *dst = &processed_data.data[1];
-
- unsigned int i = 0;
- *mod = 0;
-
-
- bfd_h_put_32(abfd, s->vma + current_byte_index,
- processed_data.addr);
-
- /* Don't start a relocation unless you're sure you can finish it
- within the same data record. The worst case relocation is a
- 4-byte relocatable value which is split across two modification
- bytes (1 relocation byte + 2 symbol reference bytes + 2 data +
- 1 modification byte + 2 data = 8 bytes total). That's where
- the magic number 8 comes from.
- */
- while (current_byte_index < s->_raw_size && dst <=
- (uint8e_type*)&processed_data.data[sizeof(processed_data.data)-8]) {
-
-
- if (relocs_to_go != 0) {
- arelent *r = *p;
- reloc_howto_type *CONST how=r->howto;
- /* There is a relocation, is it for this byte ? */
- if (r->address == current_byte_index) {
- uint8e_type rel_byte;
- p++;
- relocs_to_go--;
-
- *mod |= (1<<i);
- if(how->pc_relative) {
- rel_byte = 0x80;
-
- /* Also patch the raw data so that it doesn't have
- the -ve stuff any more */
- if (how->size != 2) {
- bfd_put_16(abfd,
- bfd_get_16(abfd,raw_data) +
- current_byte_index, raw_data);
- }
-
- else {
- bfd_put_32(abfd,
- bfd_get_32(abfd,raw_data) +
- current_byte_index, raw_data);
- }
- }
- else {
- rel_byte = 0;
- }
- if (how->size ==2) {
- rel_byte |= 0x40;
- }
-
- /* Is this a section relative relocation, or a symbol
- relative relocation ? */
- abort();
-
- #if 0
- if (r->section != (asection*)NULL)
- {
- /* The relent has a section attached, so it must be section
- relative */
- rel_byte |= RELOCATION_TYPE_REL;
- rel_byte |= r->section->output_section->target_index;
- *dst++ = rel_byte;
- }
- else
- #endif
- {
- asymbol *p = *(r->sym_ptr_ptr);
-
- /* If this symbol has a section attached, then it
- has already been resolved. Change from a symbol
- ref to a section ref */
- if(p->section != (asection *)NULL) {
- rel_byte |= RELOCATION_TYPE_REL;
- rel_byte |=
- p->section->output_section->target_index;
- *dst++ = rel_byte;
- }
- else {
- rel_byte |= RELOCATION_TYPE_UND;
-
-
- *dst++ = rel_byte;
- /* Next two bytes are a symbol index - we can get
- this from the symbol value which has been zapped
- into the symbol index in the table when the
- symbol table was written
- */
- *dst++ = p->value >> 8;
- *dst++ = p->value;
- }
-
- }
- #define ADVANCE { if (++i >= 8) { i = 0; mod = dst++; *mod = 0; } current_byte_index++; }
- /* relocations never occur from an unloadable section,
- so we can assume that raw_data is not NULL
- */
- *dst++ = *raw_data++;
- ADVANCE
- *dst++ = *raw_data++;
- ADVANCE
- if (how->size == 2) {
- *dst++ = *raw_data++;
- ADVANCE
- *dst++ = *raw_data++;
- ADVANCE
- }
- continue;
- }
- }
- /* If this is coming from an unloadable section then copy
- zeros */
- if (raw_data == (uint8e_type *)NULL) {
- *dst++ = 0;
- }
- else {
- *dst++ = *raw_data++;
- }
- ADVANCE
- }
-
- /* Don't write a useless null modification byte */
- if (dst == mod+1) {
- --dst;
- }
-
- oasys_write_record(abfd,
- oasys_record_is_data_enum,
- (oasys_record_union_type *)&processed_data,
- dst - (uint8e_type*)&processed_data);
-
- }
- }
- }
- }
- static boolean
- DEFUN(oasys_write_object_contents, (abfd),
- bfd *abfd)
- {
- oasys_write_header(abfd);
- oasys_write_syms(abfd);
- oasys_write_sections(abfd);
- oasys_write_data(abfd);
- oasys_write_end(abfd);
- return true;
- }
-
-
-
-
- /** exec and core file sections */
-
- /* set section contents is complicated with OASYS since the format is
- * not a byte image, but a record stream.
- */
- static boolean
- DEFUN(oasys_set_section_contents,(abfd, section, location, offset, count),
- bfd *abfd AND
- sec_ptr section AND
- PTR location AND
- file_ptr offset AND
- bfd_size_type count)
- {
- if (count != 0) {
- if (oasys_per_section(section)->data == (bfd_byte *)NULL )
- {
- oasys_per_section(section)->data =
- (bfd_byte *)(bfd_alloc(abfd,section->_cooked_size));
- }
- (void) memcpy((PTR)(oasys_per_section(section)->data + offset),
- location,
- count);
- }
- return true;
- }
-
-
-
- /* Native-level interface to symbols. */
-
- /* We read the symbols into a buffer, which is discarded when this
- function exits. We read the strings into a buffer large enough to
- hold them all plus all the cached symbol entries. */
-
- static asymbol *
- DEFUN(oasys_make_empty_symbol,(abfd),
- bfd *abfd)
- {
-
- oasys_symbol_type *new =
- (oasys_symbol_type *)bfd_zalloc (abfd, sizeof (oasys_symbol_type));
- new->symbol.the_bfd = abfd;
- return &new->symbol;
-
- }
-
-
-
-
- /* User should have checked the file flags; perhaps we should return
- BFD_NO_MORE_SYMBOLS if there are none? */
-
- static bfd *
- oasys_openr_next_archived_file(arch, prev)
- bfd *arch;
- bfd *prev;
- {
- oasys_ar_data_type *ar = OASYS_AR_DATA(arch);
- oasys_module_info_type *p;
- /* take the next one from the arch state, or reset */
- if (prev == (bfd *)NULL) {
- /* Reset the index - the first two entries are bogus*/
- ar->module_index = 0;
- }
-
- p = ar->module + ar->module_index;
- ar->module_index++;
-
- if (ar->module_index <= ar->module_count) {
- if (p->abfd == (bfd *)NULL) {
- p->abfd = _bfd_create_empty_archive_element_shell(arch);
- p->abfd->origin = p->pos;
- p->abfd->filename = p->name;
-
- /* Fixup a pointer to this element for the member */
- p->abfd->arelt_data = (PTR)p;
- }
- return p->abfd;
- }
- else {
- bfd_error = no_more_archived_files;
- return (bfd *)NULL;
- }
- }
-
- static boolean
- oasys_find_nearest_line(abfd,
- section,
- symbols,
- offset,
- filename_ptr,
- functionname_ptr,
- line_ptr)
- bfd *abfd;
- asection *section;
- asymbol **symbols;
- bfd_vma offset;
- char **filename_ptr;
- char **functionname_ptr;
- unsigned int *line_ptr;
- {
- return false;
-
- }
-
- static int
- DEFUN(oasys_generic_stat_arch_elt,(abfd, buf),
- bfd *abfd AND
- struct stat *buf)
- {
- oasys_module_info_type *mod = (oasys_module_info_type *) abfd->arelt_data;
- if (mod == (oasys_module_info_type *)NULL) {
- bfd_error = invalid_operation;
- return -1;
- }
- else {
- buf->st_size = mod->size;
- buf->st_mode = 0666;
- return 0;
- }
- }
-
- static int
- DEFUN(oasys_sizeof_headers,(abfd, exec),
- bfd *abfd AND
- boolean exec)
- {
- return 0;
- }
- #define FOO PROTO
- #define oasys_core_file_failing_command (char *(*)())(bfd_nullvoidptr)
- #define oasys_core_file_failing_signal (int (*)())bfd_0
- #define oasys_core_file_matches_executable_p 0
- #define oasys_slurp_armap bfd_true
- #define oasys_slurp_extended_name_table bfd_true
- #define oasys_truncate_arname (void (*)())bfd_nullvoidptr
- #define oasys_write_armap 0
- #define oasys_get_lineno (struct lineno_cache_entry *(*)())bfd_nullvoidptr
- #define oasys_close_and_cleanup bfd_generic_close_and_cleanup
- #define oasys_set_arch_mach bfd_default_set_arch_mach
- #define oasys_bfd_debug_info_start bfd_void
- #define oasys_bfd_debug_info_end bfd_void
- #define oasys_bfd_debug_info_accumulate (FOO(void, (*), (bfd *, asection *)))bfd_void
- #define oasys_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
- #define oasys_bfd_relax_section bfd_generic_relax_section
- #define oasys_bfd_seclet_link bfd_generic_seclet_link
- #define oasys_bfd_reloc_type_lookup \
- ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
- #define oasys_bfd_make_debug_symbol \
- ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
-
- /*SUPPRESS 460 */
- bfd_target oasys_vec =
- {
- "oasys", /* name */
- bfd_target_oasys_flavour,
- true, /* target byte order */
- true, /* target headers byte order */
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
- (SEC_CODE|SEC_DATA|SEC_ROM|SEC_HAS_CONTENTS
- |SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
- 0, /* leading underscore */
- ' ', /* ar_pad_char */
- 16, /* ar_max_namelen */
- 1, /* minimum alignment */
- _do_getb64, _do_getb_signed_64, _do_putb64,
- _do_getb32, _do_getb_signed_32, _do_putb32,
- _do_getb16, _do_getb_signed_16, _do_putb16, /* data */
- _do_getb64, _do_getb_signed_64, _do_putb64,
- _do_getb32, _do_getb_signed_32, _do_putb32,
- _do_getb16, _do_getb_signed_16, _do_putb16, /* hdrs */
-
- {_bfd_dummy_target,
- oasys_object_p, /* bfd_check_format */
- oasys_archive_p,
- _bfd_dummy_target,
- },
- { /* bfd_set_format */
- bfd_false,
- oasys_mkobject,
- _bfd_generic_mkarchive,
- bfd_false
- },
- { /* bfd_write_contents */
- bfd_false,
- oasys_write_object_contents,
- _bfd_write_archive_contents,
- bfd_false,
- },
- JUMP_TABLE(oasys),
- (PTR) 0
- };
-