binutils-gdb/bfd/coffish.h

602 lines
18 KiB
C
Executable File

/* All the swapping routines:
*/
static void
DEFUN(swap_reloc_in,(abfd, reloc_src, reloc_dst),
bfd *abfd AND
RELOC *reloc_src AND
struct internal_reloc *reloc_dst)
{
reloc_dst->r_vaddr = bfd_h_getlong(abfd, reloc_src->r_vaddr);
reloc_dst->r_symndx = bfd_h_getlong(abfd, reloc_src->r_symndx);
reloc_dst->r_type = bfd_h_getshort(abfd, reloc_src->r_type);
#if M88
reloc_dst->r_offset = bfd_h_getshort(abfd, reloc_src->r_offset);
#endif
}
static void
DEFUN(swap_reloc_out,(abfd, reloc_src, reloc_dst),
bfd *abfd AND
struct internal_reloc *reloc_src AND
struct external_reloc *reloc_dst)
{
bfd_h_putlong(abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr);
bfd_h_putlong(abfd, reloc_src->r_symndx, reloc_dst->r_symndx);
bfd_h_putshort(abfd, reloc_src->r_type, reloc_dst->r_type);
#if M88
bfd_h_putshort(abfd, reloc_src->r_offset, reloc_dst->r_offset);
#endif
}
static void
DEFUN(swap_filehdr_in,(abfd, filehdr_src, filehdr_dst),
bfd *abfd AND
FILHDR *filehdr_src AND
struct internal_filehdr *filehdr_dst)
{
filehdr_dst->f_magic = bfd_h_get_x(abfd, filehdr_src->f_magic);
filehdr_dst->f_nscns = bfd_h_get_x(abfd,filehdr_src-> f_nscns);
filehdr_dst->f_timdat = bfd_h_get_x(abfd,filehdr_src-> f_timdat);
filehdr_dst->f_symptr = bfd_h_get_x(abfd,filehdr_src-> f_symptr);
filehdr_dst->f_nsyms = bfd_h_get_x(abfd,filehdr_src-> f_nsyms);
filehdr_dst->f_opthdr = bfd_h_get_x(abfd,filehdr_src-> f_opthdr);
filehdr_dst->f_flags = bfd_h_get_x(abfd,filehdr_src-> f_flags);
}
static void
DEFUN(swap_filehdr_out,(abfd, filehdr_in, filehdr_out),
bfd *abfd AND
struct internal_filehdr *filehdr_in AND
FILHDR *filehdr_out)
{
bfd_h_put_x(abfd, filehdr_in->f_magic, filehdr_out->f_magic);
bfd_h_put_x(abfd, filehdr_in->f_nscns, filehdr_out->f_nscns);
bfd_h_put_x(abfd, filehdr_in->f_timdat, filehdr_out->f_timdat);
bfd_h_put_x(abfd, filehdr_in->f_symptr, filehdr_out->f_symptr);
bfd_h_put_x(abfd, filehdr_in->f_nsyms, filehdr_out->f_nsyms);
bfd_h_put_x(abfd, filehdr_in->f_opthdr, filehdr_out->f_opthdr);
bfd_h_put_x(abfd, filehdr_in->f_flags, filehdr_out->f_flags);
}
static void
DEFUN(bfd_coff_swap_sym_in,(abfd, ext, in),
bfd *abfd AND
SYMENT *ext AND
struct internal_syment *in)
{
if( ext->e.e_name[0] == 0) {
in->_n._n_n._n_zeroes = 0;
in->_n._n_n._n_offset = bfd_h_getlong(abfd, ext->e.e.e_offset);
}
else {
memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN);
}
in->n_value = bfd_h_get_x(abfd, ext->e_value);
in->n_scnum = bfd_h_get_x(abfd, ext->e_scnum);
in->n_type = bfd_h_get_x(abfd, ext->e_type);
in->n_sclass = bfd_h_get_x(abfd, ext->e_sclass);
in->n_numaux = bfd_h_get_x(abfd, ext->e_numaux);
}
static void
DEFUN(bfd_coff_swap_sym_out,(abfd,in, ext),
bfd *abfd AND
struct internal_syment *in AND
SYMENT *ext)
{
if(in->_n._n_name[0] == 0) {
bfd_h_putlong(abfd, 0, ext->e.e.e_zeroes);
bfd_h_putlong(abfd, in->_n._n_n._n_offset, ext->e.e.e_offset);
}
else {
memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN);
}
bfd_h_put_x(abfd, in->n_value , ext->e_value);
bfd_h_put_x(abfd, in->n_scnum , ext->e_scnum);
bfd_h_put_x(abfd, in->n_type , ext->e_type);
bfd_h_put_x(abfd, in->n_sclass , ext->e_sclass);
bfd_h_put_x(abfd, in->n_numaux , ext->e_numaux);
}
static void
DEFUN(bfd_coff_swap_aux_in,(abfd, ext, type, class, in),
bfd *abfd AND
AUXENT *ext AND
int type AND
int class AND
union internal_auxent *in)
{
switch (class) {
case C_FILE:
if (ext->x_file.x_fname[0] == 0) {
in->x_file.x_n.x_zeroes = 0;
in->x_file.x_n.x_offset = bfd_h_getlong(abfd, ext->x_file.x_n.x_offset);
}
break;
case C_STAT:
#ifdef C_LEAFSTAT
case C_LEAFSTAT:
#endif
case C_HIDDEN:
if (type == T_NULL) {
in->x_scn.x_scnlen = bfd_h_get_x(abfd, ext->x_scn.x_scnlen);
in->x_scn.x_nreloc = bfd_h_get_x(abfd, ext->x_scn.x_nreloc);
in->x_scn.x_nlinno = bfd_h_get_x(abfd, ext->x_scn.x_nlinno);
break;
}
default:
in->x_sym.x_tagndx = bfd_h_get_x(abfd, ext->x_sym.x_tagndx);
in->x_sym.x_tvndx = bfd_h_get_x(abfd, ext->x_sym.x_tvndx);
if (ISARY(type) || class == C_BLOCK) {
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]);
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]);
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]);
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]);
}
else {
in->x_sym.x_fcnary.x_fcn.x_lnnoptr = bfd_h_get_x(abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
in->x_sym.x_fcnary.x_fcn.x_endndx = bfd_h_get_x(abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx);
}
if (ISFCN(type)) {
in->x_sym.x_misc.x_fsize = bfd_h_get_x(abfd, ext->x_sym.x_misc.x_fsize);
}
else {
in->x_sym.x_misc.x_lnsz.x_lnno = bfd_h_get_x(abfd, ext->x_sym.x_misc.x_lnsz.x_lnno);
in->x_sym.x_misc.x_lnsz.x_size = bfd_h_get_x(abfd, ext->x_sym.x_misc.x_lnsz.x_size);
}
}
}
static void
DEFUN(bfd_coff_swap_aux_out,(abfd, in, type, class, ext),
bfd *abfd AND
union internal_auxent *in AND
int type AND
int class AND
AUXENT *ext)
{
switch (class) {
case C_FILE:
if (in->x_file.x_fname[0] == 0) {
bfd_h_put_x(abfd, 0, ext->x_file.x_n.x_zeroes );
bfd_h_put_x(abfd, in->x_file.x_n.x_offset, ext->x_file.x_n.x_offset);
}
break;
case C_STAT:
#ifdef C_LEAFSTAT
case C_LEAFSTAT:
#endif
case C_HIDDEN:
if (type == T_NULL) {
bfd_h_put_x(abfd, in->x_scn.x_scnlen, ext->x_scn.x_scnlen);
bfd_h_put_x(abfd, in->x_scn.x_nreloc, ext->x_scn.x_nreloc);
bfd_h_put_x(abfd, in->x_scn.x_nlinno, ext->x_scn.x_nlinno);
break;
}
default:
bfd_h_put_x(abfd, in->x_sym.x_tagndx, ext->x_sym.x_tagndx);
bfd_h_put_x(abfd, in->x_sym.x_tvndx , ext->x_sym.x_tvndx);
if (ISARY(type) || class == C_BLOCK) {
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]);
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]);
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]);
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]);
}
else {
bfd_h_put_x(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
bfd_h_put_x(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx, ext->x_sym.x_fcnary.x_fcn.x_endndx);
}
if (ISFCN(type)) {
bfd_h_put_x(abfd, in->x_sym.x_misc.x_fsize, ext->x_sym.x_misc.x_fsize);
}
else {
bfd_h_put_x(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext->x_sym.x_misc.x_lnsz.x_lnno);
bfd_h_put_x(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext->x_sym.x_misc.x_lnsz.x_size);
}
}
}
static void
DEFUN(bfd_coff_swap_lineno_in,(abfd, ext, in),
bfd *abfd AND
LINENO *ext AND
struct internal_lineno *in)
{
in->l_addr.l_symndx = bfd_h_get_x(abfd, ext->l_addr.l_symndx);
in->l_lnno = bfd_h_get_x(abfd, ext->l_lnno);
}
static void
DEFUN(bfd_coff_swap_lineno_out,(abfd, in, ext),
bfd *abfd AND
struct internal_lineno *in AND
struct external_lineno *ext)
{
bfd_h_put_x(abfd, in->l_addr.l_symndx, ext->l_addr.l_symndx);
bfd_h_put_x(abfd, in->l_lnno, ext->l_lnno);
}
static void
DEFUN(swap_aouthdr_in,(abfd, aouthdr_ext, aouthdr_int),
bfd *abfd AND
AOUTHDR *aouthdr_ext AND
struct internal_aouthdr *aouthdr_int)
{
aouthdr_int->magic = bfd_h_get_x(abfd, aouthdr_ext->magic);
aouthdr_int->vstamp = bfd_h_get_x(abfd, aouthdr_ext->vstamp);
aouthdr_int->tsize = bfd_h_get_x(abfd, aouthdr_ext->tsize);
aouthdr_int->dsize = bfd_h_get_x(abfd, aouthdr_ext->dsize);
aouthdr_int->bsize = bfd_h_get_x(abfd, aouthdr_ext->bsize);
aouthdr_int->entry = bfd_h_get_x(abfd, aouthdr_ext->entry);
aouthdr_int->text_start = bfd_h_get_x(abfd, aouthdr_ext->text_start);
aouthdr_int->data_start = bfd_h_get_x(abfd, aouthdr_ext->data_start);
#ifdef I960
aouthdr_int->tagentries = bfd_h_get_x(abfd, aouthdr_ext->tagentries);
#endif
}
static void
DEFUN(swap_aouthdr_out,(abfd, aouthdr_in, aouthdr_out),
bfd *abfd AND
struct internal_aouthdr *aouthdr_in AND
AOUTHDR *aouthdr_out)
{
bfd_h_put_x(abfd, aouthdr_in->magic, aouthdr_out->magic);
bfd_h_put_x(abfd, aouthdr_in->vstamp, aouthdr_out->vstamp);
bfd_h_put_x(abfd, aouthdr_in->tsize, aouthdr_out->tsize);
bfd_h_put_x(abfd, aouthdr_in->dsize, aouthdr_out->dsize);
bfd_h_put_x(abfd, aouthdr_in->bsize, aouthdr_out->bsize);
bfd_h_put_x(abfd, aouthdr_in->entry, aouthdr_out->entry);
bfd_h_put_x(abfd, aouthdr_in->text_start, aouthdr_out->text_start);
bfd_h_put_x(abfd, aouthdr_in->data_start, aouthdr_out->data_start);
#ifdef I960
bfd_h_put_x(abfd, aouthdr_in->tagentries, aouthdr_out->tagentries);
#endif
}
static void
DEFUN(swap_scnhdr_in,(abfd, scnhdr_ext, scnhdr_int),
bfd *abfd AND
SCNHDR *scnhdr_ext AND
struct internal_scnhdr *scnhdr_int)
{
memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name));
scnhdr_int->s_vaddr = bfd_h_get_x(abfd, scnhdr_ext->s_vaddr);
scnhdr_int->s_paddr = bfd_h_get_x(abfd, scnhdr_ext->s_paddr);
scnhdr_int->s_size = bfd_h_get_x(abfd, scnhdr_ext->s_size);
scnhdr_int->s_scnptr = bfd_h_get_x(abfd, scnhdr_ext->s_scnptr);
scnhdr_int->s_relptr = bfd_h_get_x(abfd, scnhdr_ext->s_relptr);
scnhdr_int->s_lnnoptr = bfd_h_get_x(abfd, scnhdr_ext->s_lnnoptr);
scnhdr_int->s_nreloc = bfd_h_get_x(abfd, scnhdr_ext->s_nreloc);
scnhdr_int->s_nlnno = bfd_h_get_x(abfd, scnhdr_ext->s_nlnno);
scnhdr_int->s_flags = bfd_h_get_x(abfd, scnhdr_ext->s_flags);
#ifdef I960
scnhdr_int->s_align = bfd_h_get_x(abfd, scnhdr_ext->s_align);
#endif
}
static void
DEFUN(swap_scnhdr_out,(abfd, scnhdr_int, scnhdr_ext),
bfd *abfd AND
struct internal_scnhdr *scnhdr_int AND
SCNHDR *scnhdr_ext)
{
memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name));
bfd_h_put_x(abfd, scnhdr_int->s_vaddr, scnhdr_ext->s_vaddr);
bfd_h_put_x(abfd, scnhdr_int->s_paddr, scnhdr_ext->s_paddr);
bfd_h_put_x(abfd, scnhdr_int->s_size, scnhdr_ext->s_size);
bfd_h_put_x(abfd, scnhdr_int->s_scnptr, scnhdr_ext->s_scnptr);
bfd_h_put_x(abfd, scnhdr_int->s_relptr, scnhdr_ext->s_relptr);
bfd_h_put_x(abfd, scnhdr_int->s_lnnoptr, scnhdr_ext->s_lnnoptr);
bfd_h_put_x(abfd, scnhdr_int->s_nreloc, scnhdr_ext->s_nreloc);
bfd_h_put_x(abfd, scnhdr_int->s_nlnno, scnhdr_ext->s_nlnno);
bfd_h_put_x(abfd, scnhdr_int->s_flags, scnhdr_ext->s_flags);
#ifdef I960
bfd_h_put_x(abfd, scnhdr_int->s_align, scnhdr_ext->s_align);
#endif
}
/*
initialize a section structure with information peculiar to this
particular implementation of coff
*/
static boolean
DEFUN(coff_new_section_hook,(abfd_ignore, section_ignore),
bfd *abfd_ignore AND
asection *section_ignore)
{
#ifdef MC88MAGIC
/* FIXME, shouldn't this ifdef be on something that says we are
actually COMPILING FOR an 88K coff file, rather than simply
knowing its magic number? */
/* Align to at least 16 bytes */
section_ignore->alignment_power = 4;
#endif
#if M68
section_ignore->alignment_power = 3;
#endif
return true;
}
/* Take a section header read from a coff file (in HOST byte order),
and make a BFD "section" out of it. */
static boolean
DEFUN(make_a_section_from_file,(abfd, hdr),
bfd *abfd AND
struct internal_scnhdr *hdr)
{
asection *return_section;
{
/* Assorted wastage to null-terminate the name, thanks AT&T! */
char *name = bfd_alloc(abfd, sizeof (hdr->s_name)+1);
if (name == NULL) {
bfd_error = no_memory;
return false;
}
strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name));
name[sizeof (hdr->s_name)] = 0;
return_section = bfd_make_section(abfd, name);
}
/* 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);
}