602 lines
18 KiB
C
Executable File
602 lines
18 KiB
C
Executable File
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/* All the swapping routines:
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*/
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static void
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DEFUN(swap_reloc_in,(abfd, reloc_src, reloc_dst),
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bfd *abfd AND
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RELOC *reloc_src AND
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struct internal_reloc *reloc_dst)
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{
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reloc_dst->r_vaddr = bfd_h_getlong(abfd, reloc_src->r_vaddr);
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reloc_dst->r_symndx = bfd_h_getlong(abfd, reloc_src->r_symndx);
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reloc_dst->r_type = bfd_h_getshort(abfd, reloc_src->r_type);
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#if M88
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reloc_dst->r_offset = bfd_h_getshort(abfd, reloc_src->r_offset);
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#endif
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}
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static void
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DEFUN(swap_reloc_out,(abfd, reloc_src, reloc_dst),
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bfd *abfd AND
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struct internal_reloc *reloc_src AND
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struct external_reloc *reloc_dst)
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{
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bfd_h_putlong(abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr);
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bfd_h_putlong(abfd, reloc_src->r_symndx, reloc_dst->r_symndx);
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bfd_h_putshort(abfd, reloc_src->r_type, reloc_dst->r_type);
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#if M88
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bfd_h_putshort(abfd, reloc_src->r_offset, reloc_dst->r_offset);
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#endif
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}
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static void
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DEFUN(swap_filehdr_in,(abfd, filehdr_src, filehdr_dst),
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bfd *abfd AND
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FILHDR *filehdr_src AND
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struct internal_filehdr *filehdr_dst)
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{
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filehdr_dst->f_magic = bfd_h_get_x(abfd, filehdr_src->f_magic);
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filehdr_dst->f_nscns = bfd_h_get_x(abfd,filehdr_src-> f_nscns);
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filehdr_dst->f_timdat = bfd_h_get_x(abfd,filehdr_src-> f_timdat);
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filehdr_dst->f_symptr = bfd_h_get_x(abfd,filehdr_src-> f_symptr);
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filehdr_dst->f_nsyms = bfd_h_get_x(abfd,filehdr_src-> f_nsyms);
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filehdr_dst->f_opthdr = bfd_h_get_x(abfd,filehdr_src-> f_opthdr);
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filehdr_dst->f_flags = bfd_h_get_x(abfd,filehdr_src-> f_flags);
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}
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static void
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DEFUN(swap_filehdr_out,(abfd, filehdr_in, filehdr_out),
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bfd *abfd AND
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struct internal_filehdr *filehdr_in AND
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FILHDR *filehdr_out)
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{
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bfd_h_put_x(abfd, filehdr_in->f_magic, filehdr_out->f_magic);
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bfd_h_put_x(abfd, filehdr_in->f_nscns, filehdr_out->f_nscns);
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bfd_h_put_x(abfd, filehdr_in->f_timdat, filehdr_out->f_timdat);
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bfd_h_put_x(abfd, filehdr_in->f_symptr, filehdr_out->f_symptr);
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bfd_h_put_x(abfd, filehdr_in->f_nsyms, filehdr_out->f_nsyms);
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bfd_h_put_x(abfd, filehdr_in->f_opthdr, filehdr_out->f_opthdr);
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bfd_h_put_x(abfd, filehdr_in->f_flags, filehdr_out->f_flags);
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}
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static void
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DEFUN(bfd_coff_swap_sym_in,(abfd, ext, in),
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bfd *abfd AND
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SYMENT *ext AND
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struct internal_syment *in)
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{
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if( ext->e.e_name[0] == 0) {
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in->_n._n_n._n_zeroes = 0;
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in->_n._n_n._n_offset = bfd_h_getlong(abfd, ext->e.e.e_offset);
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}
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else {
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memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN);
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}
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in->n_value = bfd_h_get_x(abfd, ext->e_value);
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in->n_scnum = bfd_h_get_x(abfd, ext->e_scnum);
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in->n_type = bfd_h_get_x(abfd, ext->e_type);
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in->n_sclass = bfd_h_get_x(abfd, ext->e_sclass);
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in->n_numaux = bfd_h_get_x(abfd, ext->e_numaux);
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}
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static void
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DEFUN(bfd_coff_swap_sym_out,(abfd,in, ext),
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bfd *abfd AND
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struct internal_syment *in AND
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SYMENT *ext)
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{
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if(in->_n._n_name[0] == 0) {
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bfd_h_putlong(abfd, 0, ext->e.e.e_zeroes);
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bfd_h_putlong(abfd, in->_n._n_n._n_offset, ext->e.e.e_offset);
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}
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else {
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memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN);
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}
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bfd_h_put_x(abfd, in->n_value , ext->e_value);
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bfd_h_put_x(abfd, in->n_scnum , ext->e_scnum);
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bfd_h_put_x(abfd, in->n_type , ext->e_type);
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bfd_h_put_x(abfd, in->n_sclass , ext->e_sclass);
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bfd_h_put_x(abfd, in->n_numaux , ext->e_numaux);
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}
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static void
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DEFUN(bfd_coff_swap_aux_in,(abfd, ext, type, class, in),
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bfd *abfd AND
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AUXENT *ext AND
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int type AND
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int class AND
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union internal_auxent *in)
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{
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switch (class) {
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case C_FILE:
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if (ext->x_file.x_fname[0] == 0) {
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in->x_file.x_n.x_zeroes = 0;
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in->x_file.x_n.x_offset = bfd_h_getlong(abfd, ext->x_file.x_n.x_offset);
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}
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break;
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case C_STAT:
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#ifdef C_LEAFSTAT
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case C_LEAFSTAT:
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#endif
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case C_HIDDEN:
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if (type == T_NULL) {
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in->x_scn.x_scnlen = bfd_h_get_x(abfd, ext->x_scn.x_scnlen);
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in->x_scn.x_nreloc = bfd_h_get_x(abfd, ext->x_scn.x_nreloc);
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in->x_scn.x_nlinno = bfd_h_get_x(abfd, ext->x_scn.x_nlinno);
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break;
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}
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default:
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in->x_sym.x_tagndx = bfd_h_get_x(abfd, ext->x_sym.x_tagndx);
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in->x_sym.x_tvndx = bfd_h_get_x(abfd, ext->x_sym.x_tvndx);
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if (ISARY(type) || class == C_BLOCK) {
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in->x_sym.x_fcnary.x_ary.x_dimen[0] = bfd_h_get_x(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
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in->x_sym.x_fcnary.x_ary.x_dimen[1] = bfd_h_get_x(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
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in->x_sym.x_fcnary.x_ary.x_dimen[2] = bfd_h_get_x(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
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in->x_sym.x_fcnary.x_ary.x_dimen[3] = bfd_h_get_x(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
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}
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else {
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in->x_sym.x_fcnary.x_fcn.x_lnnoptr = bfd_h_get_x(abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
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in->x_sym.x_fcnary.x_fcn.x_endndx = bfd_h_get_x(abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx);
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}
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if (ISFCN(type)) {
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in->x_sym.x_misc.x_fsize = bfd_h_get_x(abfd, ext->x_sym.x_misc.x_fsize);
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}
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else {
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in->x_sym.x_misc.x_lnsz.x_lnno = bfd_h_get_x(abfd, ext->x_sym.x_misc.x_lnsz.x_lnno);
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in->x_sym.x_misc.x_lnsz.x_size = bfd_h_get_x(abfd, ext->x_sym.x_misc.x_lnsz.x_size);
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}
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}
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}
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static void
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DEFUN(bfd_coff_swap_aux_out,(abfd, in, type, class, ext),
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bfd *abfd AND
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union internal_auxent *in AND
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int type AND
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int class AND
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AUXENT *ext)
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{
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switch (class) {
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case C_FILE:
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if (in->x_file.x_fname[0] == 0) {
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bfd_h_put_x(abfd, 0, ext->x_file.x_n.x_zeroes );
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bfd_h_put_x(abfd, in->x_file.x_n.x_offset, ext->x_file.x_n.x_offset);
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}
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break;
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case C_STAT:
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#ifdef C_LEAFSTAT
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case C_LEAFSTAT:
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#endif
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case C_HIDDEN:
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if (type == T_NULL) {
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bfd_h_put_x(abfd, in->x_scn.x_scnlen, ext->x_scn.x_scnlen);
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bfd_h_put_x(abfd, in->x_scn.x_nreloc, ext->x_scn.x_nreloc);
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bfd_h_put_x(abfd, in->x_scn.x_nlinno, ext->x_scn.x_nlinno);
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break;
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}
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default:
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bfd_h_put_x(abfd, in->x_sym.x_tagndx, ext->x_sym.x_tagndx);
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bfd_h_put_x(abfd, in->x_sym.x_tvndx , ext->x_sym.x_tvndx);
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if (ISARY(type) || class == C_BLOCK) {
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bfd_h_put_x(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0],ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
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bfd_h_put_x(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1],ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
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bfd_h_put_x(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2],ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
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bfd_h_put_x(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3],ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
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}
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else {
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bfd_h_put_x(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
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bfd_h_put_x(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx, ext->x_sym.x_fcnary.x_fcn.x_endndx);
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}
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if (ISFCN(type)) {
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bfd_h_put_x(abfd, in->x_sym.x_misc.x_fsize, ext->x_sym.x_misc.x_fsize);
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}
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else {
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bfd_h_put_x(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext->x_sym.x_misc.x_lnsz.x_lnno);
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bfd_h_put_x(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext->x_sym.x_misc.x_lnsz.x_size);
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}
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}
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}
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static void
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DEFUN(bfd_coff_swap_lineno_in,(abfd, ext, in),
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bfd *abfd AND
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LINENO *ext AND
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struct internal_lineno *in)
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{
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in->l_addr.l_symndx = bfd_h_get_x(abfd, ext->l_addr.l_symndx);
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in->l_lnno = bfd_h_get_x(abfd, ext->l_lnno);
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}
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static void
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DEFUN(bfd_coff_swap_lineno_out,(abfd, in, ext),
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bfd *abfd AND
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struct internal_lineno *in AND
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struct external_lineno *ext)
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{
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bfd_h_put_x(abfd, in->l_addr.l_symndx, ext->l_addr.l_symndx);
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bfd_h_put_x(abfd, in->l_lnno, ext->l_lnno);
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}
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static void
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DEFUN(swap_aouthdr_in,(abfd, aouthdr_ext, aouthdr_int),
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bfd *abfd AND
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AOUTHDR *aouthdr_ext AND
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struct internal_aouthdr *aouthdr_int)
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{
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aouthdr_int->magic = bfd_h_get_x(abfd, aouthdr_ext->magic);
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aouthdr_int->vstamp = bfd_h_get_x(abfd, aouthdr_ext->vstamp);
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aouthdr_int->tsize = bfd_h_get_x(abfd, aouthdr_ext->tsize);
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aouthdr_int->dsize = bfd_h_get_x(abfd, aouthdr_ext->dsize);
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aouthdr_int->bsize = bfd_h_get_x(abfd, aouthdr_ext->bsize);
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aouthdr_int->entry = bfd_h_get_x(abfd, aouthdr_ext->entry);
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aouthdr_int->text_start = bfd_h_get_x(abfd, aouthdr_ext->text_start);
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aouthdr_int->data_start = bfd_h_get_x(abfd, aouthdr_ext->data_start);
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#ifdef I960
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aouthdr_int->tagentries = bfd_h_get_x(abfd, aouthdr_ext->tagentries);
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#endif
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}
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static void
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DEFUN(swap_aouthdr_out,(abfd, aouthdr_in, aouthdr_out),
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bfd *abfd AND
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struct internal_aouthdr *aouthdr_in AND
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AOUTHDR *aouthdr_out)
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{
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bfd_h_put_x(abfd, aouthdr_in->magic, aouthdr_out->magic);
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bfd_h_put_x(abfd, aouthdr_in->vstamp, aouthdr_out->vstamp);
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bfd_h_put_x(abfd, aouthdr_in->tsize, aouthdr_out->tsize);
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bfd_h_put_x(abfd, aouthdr_in->dsize, aouthdr_out->dsize);
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bfd_h_put_x(abfd, aouthdr_in->bsize, aouthdr_out->bsize);
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bfd_h_put_x(abfd, aouthdr_in->entry, aouthdr_out->entry);
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bfd_h_put_x(abfd, aouthdr_in->text_start, aouthdr_out->text_start);
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bfd_h_put_x(abfd, aouthdr_in->data_start, aouthdr_out->data_start);
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#ifdef I960
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bfd_h_put_x(abfd, aouthdr_in->tagentries, aouthdr_out->tagentries);
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#endif
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}
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static void
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DEFUN(swap_scnhdr_in,(abfd, scnhdr_ext, scnhdr_int),
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bfd *abfd AND
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SCNHDR *scnhdr_ext AND
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struct internal_scnhdr *scnhdr_int)
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{
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memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name));
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scnhdr_int->s_vaddr = bfd_h_get_x(abfd, scnhdr_ext->s_vaddr);
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scnhdr_int->s_paddr = bfd_h_get_x(abfd, scnhdr_ext->s_paddr);
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scnhdr_int->s_size = bfd_h_get_x(abfd, scnhdr_ext->s_size);
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scnhdr_int->s_scnptr = bfd_h_get_x(abfd, scnhdr_ext->s_scnptr);
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scnhdr_int->s_relptr = bfd_h_get_x(abfd, scnhdr_ext->s_relptr);
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scnhdr_int->s_lnnoptr = bfd_h_get_x(abfd, scnhdr_ext->s_lnnoptr);
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scnhdr_int->s_nreloc = bfd_h_get_x(abfd, scnhdr_ext->s_nreloc);
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scnhdr_int->s_nlnno = bfd_h_get_x(abfd, scnhdr_ext->s_nlnno);
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scnhdr_int->s_flags = bfd_h_get_x(abfd, scnhdr_ext->s_flags);
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#ifdef I960
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scnhdr_int->s_align = bfd_h_get_x(abfd, scnhdr_ext->s_align);
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#endif
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}
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static void
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DEFUN(swap_scnhdr_out,(abfd, scnhdr_int, scnhdr_ext),
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bfd *abfd AND
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struct internal_scnhdr *scnhdr_int AND
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SCNHDR *scnhdr_ext)
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{
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memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name));
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bfd_h_put_x(abfd, scnhdr_int->s_vaddr, scnhdr_ext->s_vaddr);
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bfd_h_put_x(abfd, scnhdr_int->s_paddr, scnhdr_ext->s_paddr);
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bfd_h_put_x(abfd, scnhdr_int->s_size, scnhdr_ext->s_size);
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bfd_h_put_x(abfd, scnhdr_int->s_scnptr, scnhdr_ext->s_scnptr);
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bfd_h_put_x(abfd, scnhdr_int->s_relptr, scnhdr_ext->s_relptr);
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bfd_h_put_x(abfd, scnhdr_int->s_lnnoptr, scnhdr_ext->s_lnnoptr);
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bfd_h_put_x(abfd, scnhdr_int->s_nreloc, scnhdr_ext->s_nreloc);
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bfd_h_put_x(abfd, scnhdr_int->s_nlnno, scnhdr_ext->s_nlnno);
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bfd_h_put_x(abfd, scnhdr_int->s_flags, scnhdr_ext->s_flags);
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#ifdef I960
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bfd_h_put_x(abfd, scnhdr_int->s_align, scnhdr_ext->s_align);
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#endif
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}
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/*
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initialize a section structure with information peculiar to this
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particular implementation of coff
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*/
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static boolean
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DEFUN(coff_new_section_hook,(abfd_ignore, section_ignore),
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bfd *abfd_ignore AND
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asection *section_ignore)
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{
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#ifdef MC88MAGIC
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/* FIXME, shouldn't this ifdef be on something that says we are
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actually COMPILING FOR an 88K coff file, rather than simply
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knowing its magic number? */
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/* Align to at least 16 bytes */
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section_ignore->alignment_power = 4;
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#endif
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#if M68
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section_ignore->alignment_power = 3;
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#endif
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return true;
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}
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/* Take a section header read from a coff file (in HOST byte order),
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and make a BFD "section" out of it. */
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static boolean
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DEFUN(make_a_section_from_file,(abfd, hdr),
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bfd *abfd AND
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struct internal_scnhdr *hdr)
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{
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asection *return_section;
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{
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/* Assorted wastage to null-terminate the name, thanks AT&T! */
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char *name = bfd_alloc(abfd, sizeof (hdr->s_name)+1);
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if (name == NULL) {
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bfd_error = no_memory;
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return false;
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}
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strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name));
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name[sizeof (hdr->s_name)] = 0;
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return_section = bfd_make_section(abfd, name);
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}
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/* s_paddr is presumed to be = to s_vaddr */
|
|
#define assign(to, from) return_section->to = hdr->from
|
|
assign(vma, s_vaddr);
|
|
/* assign (vma, s_vaddr); */
|
|
assign(size, s_size);
|
|
assign(filepos, s_scnptr);
|
|
assign(rel_filepos, s_relptr);
|
|
assign(reloc_count, s_nreloc);
|
|
#ifdef I960
|
|
{
|
|
/* FIXME, use a temp var rather than alignment_power */
|
|
assign(alignment_power, s_align);
|
|
{
|
|
unsigned int i;
|
|
for (i = 0; i < 32; i++) {
|
|
if ((1 << i) >= (int) (return_section->alignment_power)) {
|
|
return_section->alignment_power = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
assign(line_filepos, s_lnnoptr);
|
|
/*
|
|
return_section->linesize = hdr->s_nlnno * sizeof (struct lineno);
|
|
*/
|
|
|
|
#undef assign
|
|
return_section->lineno_count = hdr->s_nlnno;
|
|
return_section->userdata = NULL;
|
|
return_section->next = (asection *) NULL;
|
|
if ((hdr->s_flags & STYP_TEXT) || (hdr->s_flags & STYP_DATA))
|
|
return_section->flags = (SEC_LOAD | SEC_ALLOC);
|
|
else if (hdr->s_flags & STYP_BSS)
|
|
return_section->flags = SEC_ALLOC;
|
|
|
|
if (hdr->s_nreloc != 0)
|
|
return_section->flags |= SEC_RELOC;
|
|
if (hdr->s_scnptr != 0)
|
|
return_section->flags |= SEC_HAS_CONTENTS;
|
|
return true;
|
|
}
|
|
static boolean
|
|
DEFUN(coff_mkobject,(abfd),
|
|
bfd *abfd)
|
|
{
|
|
set_tdata (abfd, bfd_zalloc (abfd,sizeof(coff_data_type)));
|
|
if (coff_data(abfd) == 0) {
|
|
bfd_error = no_memory;
|
|
return false;
|
|
}
|
|
coff_data(abfd)->relocbase = 0;
|
|
return true;
|
|
}
|
|
|
|
static
|
|
bfd_target *
|
|
DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a),
|
|
bfd *abfd AND
|
|
unsigned nscns AND
|
|
struct internal_filehdr *internal_f AND
|
|
struct internal_aouthdr *internal_a)
|
|
{
|
|
coff_data_type *coff;
|
|
|
|
size_t readsize; /* length of file_info */
|
|
SCNHDR *external_sections;
|
|
|
|
/* Build a play area */
|
|
if (coff_mkobject(abfd) != true)
|
|
return 0;
|
|
coff = coff_data(abfd);
|
|
|
|
|
|
external_sections = (SCNHDR *)bfd_alloc(abfd, readsize = (nscns * SCNHSZ));
|
|
if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) {
|
|
goto fail;
|
|
}
|
|
|
|
|
|
|
|
/* Now copy data as required; construct all asections etc */
|
|
coff->symbol_index_slew = 0;
|
|
coff->relocbase =0;
|
|
coff->raw_syment_count = 0;
|
|
coff->raw_linenos = 0;
|
|
coff->raw_syments = 0;
|
|
coff->sym_filepos =0;
|
|
coff->flags = internal_f->f_flags;
|
|
if (nscns != 0) {
|
|
unsigned int i;
|
|
for (i = 0; i < nscns; i++) {
|
|
struct internal_scnhdr tmp;
|
|
swap_scnhdr_in(abfd, external_sections + i, &tmp);
|
|
make_a_section_from_file(abfd,&tmp);
|
|
}
|
|
}
|
|
/* Determine the machine architecture and type. */
|
|
abfd->obj_machine = 0;
|
|
switch (internal_f->f_magic) {
|
|
#ifdef MIPS
|
|
#ifdef MIPSEBMAGIC
|
|
case SMIPSEBMAGIC:
|
|
case SMIPSELMAGIC:
|
|
case MIPSEBUMAGIC:
|
|
case MIPSELUMAGIC:
|
|
case MIPSEBMAGIC:
|
|
case MIPSELMAGIC:
|
|
abfd->obj_arch = bfd_arch_mips;
|
|
abfd->obj_machine = 0;
|
|
break;
|
|
#endif
|
|
#endif
|
|
#ifdef MC68MAGIC
|
|
case MC68MAGIC:
|
|
case M68MAGIC:
|
|
abfd->obj_arch = bfd_arch_m68k;
|
|
abfd->obj_machine = 68020;
|
|
break;
|
|
#endif
|
|
#ifdef MC88MAGIC
|
|
case MC88MAGIC:
|
|
case MC88DMAGIC:
|
|
case MC88OMAGIC:
|
|
abfd->obj_arch = bfd_arch_m88k;
|
|
abfd->obj_machine = 88100;
|
|
break;
|
|
#endif
|
|
#ifdef I960
|
|
#ifdef I960ROMAGIC
|
|
case I960ROMAGIC:
|
|
case I960RWMAGIC:
|
|
abfd->obj_arch = bfd_arch_i960;
|
|
switch (F_I960TYPE & internal_f->f_flags)
|
|
{
|
|
default:
|
|
case F_I960CORE:
|
|
abfd->obj_machine = bfd_mach_i960_core;
|
|
break;
|
|
case F_I960KB:
|
|
abfd->obj_machine = bfd_mach_i960_kb_sb;
|
|
break;
|
|
case F_I960MC:
|
|
abfd->obj_machine = bfd_mach_i960_mc;
|
|
break;
|
|
case F_I960XA:
|
|
abfd->obj_machine = bfd_mach_i960_xa;
|
|
break;
|
|
case F_I960CA:
|
|
abfd->obj_machine = bfd_mach_i960_ca;
|
|
break;
|
|
case F_I960KA:
|
|
abfd->obj_machine = bfd_mach_i960_ka_sa;
|
|
break;
|
|
|
|
}
|
|
break;
|
|
#endif
|
|
#endif
|
|
|
|
default: /* Unreadable input file type */
|
|
abfd->obj_arch = bfd_arch_obscure;
|
|
break;
|
|
}
|
|
|
|
if (!(internal_f->f_flags & F_RELFLG))
|
|
abfd->flags |= HAS_RELOC;
|
|
if ((internal_f->f_flags & F_EXEC))
|
|
abfd->flags |= EXEC_P;
|
|
if (!(internal_f->f_flags & F_LNNO))
|
|
abfd->flags |= HAS_LINENO;
|
|
if (!(internal_f->f_flags & F_LSYMS))
|
|
abfd->flags |= HAS_LOCALS;
|
|
|
|
|
|
bfd_get_symcount(abfd) = internal_f->f_nsyms;
|
|
if (internal_f->f_nsyms)
|
|
abfd->flags |= HAS_SYMS;
|
|
|
|
coff->sym_filepos = internal_f->f_symptr;
|
|
|
|
|
|
|
|
coff->symbols = (coff_symbol_type *) NULL;
|
|
bfd_get_start_address(abfd) = internal_f->f_opthdr ? internal_a->entry : 0;
|
|
|
|
return abfd->xvec;
|
|
fail:
|
|
bfd_release(abfd, coff);
|
|
return (bfd_target *)NULL;
|
|
}
|
|
|
|
static bfd_target *
|
|
DEFUN(coff_object_p,(abfd),
|
|
bfd *abfd)
|
|
{
|
|
int nscns;
|
|
FILHDR filehdr;
|
|
AOUTHDR opthdr;
|
|
struct internal_filehdr internal_f;
|
|
struct internal_aouthdr internal_a;
|
|
|
|
bfd_error = system_call_error;
|
|
|
|
/* figure out how much to read */
|
|
if (bfd_read((PTR) &filehdr, 1, FILHSZ, abfd) != FILHSZ)
|
|
return 0;
|
|
|
|
swap_filehdr_in(abfd, &filehdr, &internal_f);
|
|
|
|
if (BADMAG(internal_f)) {
|
|
bfd_error = wrong_format;
|
|
return 0;
|
|
}
|
|
nscns =internal_f.f_nscns;
|
|
|
|
if (internal_f.f_opthdr) {
|
|
if (bfd_read((PTR) &opthdr, 1,AOUTSZ, abfd) != AOUTSZ) {
|
|
return 0;
|
|
}
|
|
swap_aouthdr_in(abfd, &opthdr, &internal_a);
|
|
}
|
|
|
|
/* Seek past the opt hdr stuff */
|
|
bfd_seek(abfd, internal_f.f_opthdr + FILHSZ, SEEK_SET);
|
|
|
|
/* if the optional header is NULL or not the correct size then
|
|
quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
|
|
and Intel 960 readwrite headers (I960WRMAGIC) is that the
|
|
optional header is of a different size.
|
|
|
|
But the mips keeps extra stuff in it's opthdr, so dont check
|
|
when doing that
|
|
*/
|
|
|
|
#ifndef MIPS
|
|
if (internal_f.f_opthdr != 0 && AOUTSZ != internal_f.f_opthdr)
|
|
return (bfd_target *)NULL;
|
|
#endif
|
|
|
|
return coff_real_object_p(abfd, nscns, &internal_f, &internal_a);
|
|
}
|
|
|
|
|