353 lines
11 KiB
C
353 lines
11 KiB
C
/* BFD back-end for IBM RS/6000 "XCOFF64" files.
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Copyright 2000
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Free Software Foundation, Inc.
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Written Clinton Popetz.
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Contributed by Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Internalcoff.h and coffcode.h modify themselves based on these flags. */
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#define XCOFF64
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#define RS6000COFF_C 1
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "coff/internal.h"
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#include "coff/rs6k64.h"
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#include "libcoff.h"
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#define GET_FILEHDR_SYMPTR bfd_h_get_64
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#define PUT_FILEHDR_SYMPTR bfd_h_put_64
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#define GET_AOUTHDR_DATA_START bfd_h_get_64
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#define PUT_AOUTHDR_DATA_START bfd_h_put_64
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#define GET_AOUTHDR_TEXT_START bfd_h_get_64
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#define PUT_AOUTHDR_TEXT_START bfd_h_put_64
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#define GET_AOUTHDR_TSIZE bfd_h_get_64
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#define PUT_AOUTHDR_TSIZE bfd_h_put_64
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#define GET_AOUTHDR_DSIZE bfd_h_get_64
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#define PUT_AOUTHDR_DSIZE bfd_h_put_64
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#define GET_AOUTHDR_BSIZE bfd_h_get_64
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#define PUT_AOUTHDR_BSIZE bfd_h_put_64
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#define GET_AOUTHDR_ENTRY bfd_h_get_64
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#define PUT_AOUTHDR_ENTRY bfd_h_put_64
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#define GET_SCNHDR_PADDR bfd_h_get_64
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#define PUT_SCNHDR_PADDR bfd_h_put_64
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#define GET_SCNHDR_VADDR bfd_h_get_64
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#define PUT_SCNHDR_VADDR bfd_h_put_64
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#define GET_SCNHDR_SIZE bfd_h_get_64
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#define PUT_SCNHDR_SIZE bfd_h_put_64
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#define GET_SCNHDR_SCNPTR bfd_h_get_64
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#define PUT_SCNHDR_SCNPTR bfd_h_put_64
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#define GET_SCNHDR_RELPTR bfd_h_get_64
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#define PUT_SCNHDR_RELPTR bfd_h_put_64
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#define GET_SCNHDR_LNNOPTR bfd_h_get_64
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#define PUT_SCNHDR_LNNOPTR bfd_h_put_64
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#define GET_SCNHDR_NRELOC bfd_h_get_32
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#define MAX_SCNHDR_NRELOC 0xffffffff
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#define PUT_SCNHDR_NRELOC bfd_h_put_32
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#define GET_SCNHDR_NLNNO bfd_h_get_32
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#define MAX_SCNHDR_NLNNO 0xffffffff
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#define PUT_SCNHDR_NLNNO bfd_h_put_32
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#define GET_RELOC_VADDR bfd_h_get_64
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#define PUT_RELOC_VADDR bfd_h_put_64
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#define COFF_FORCE_SYMBOLS_IN_STRINGS
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#define COFF_DEBUG_STRING_WIDE_PREFIX
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#define COFF_ADJUST_SCNHDR_OUT_POST(ABFD,INT,EXT) \
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do { \
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memset (((SCNHDR *)EXT)->s_pad, 0, sizeof (((SCNHDR *)EXT)->s_pad));\
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} while (0)
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#define NO_COFF_LINENOS
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#define coff_SWAP_lineno_in xcoff64_swap_lineno_in
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#define coff_SWAP_lineno_out xcoff64_swap_lineno_out
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#define PUTWORD bfd_h_put_32
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#define PUTHALF bfd_h_put_16
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#define PUTBYTE bfd_h_put_8
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#define GETWORD bfd_h_get_32
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#define GETHALF bfd_h_get_16
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#define GETBYTE bfd_h_get_8
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/* For XCOFF64, the effective width of symndx changes depending on
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whether we are the first entry. Sigh. */
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static void
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xcoff64_swap_lineno_in (abfd, ext1, in1)
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bfd *abfd;
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PTR ext1;
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PTR in1;
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{
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LINENO *ext = (LINENO *)ext1;
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struct internal_lineno *in = (struct internal_lineno *)in1;
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in->l_lnno = bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno));
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if (in->l_lnno == 0)
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in->l_addr.l_symndx =
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bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx);
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else
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in->l_addr.l_symndx =
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bfd_h_get_64(abfd, (bfd_byte *) ext->l_addr.l_symndx);
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}
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static unsigned int
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xcoff64_swap_lineno_out (abfd, inp, outp)
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bfd *abfd;
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PTR inp;
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PTR outp;
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{
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struct internal_lineno *in = (struct internal_lineno *)inp;
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struct external_lineno *ext = (struct external_lineno *)outp;
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PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *)
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ext->l_addr.l_symndx);
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bfd_h_put_32 (abfd, in->l_lnno, (bfd_byte *) (ext->l_lnno));
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if (in->l_lnno == 0)
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bfd_h_put_32 (abfd, in->l_addr.l_symndx, (bfd_byte *)ext->l_addr.l_symndx);
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else
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bfd_h_put_64 (abfd, in->l_addr.l_symndx, (bfd_byte *)ext->l_addr.l_symndx);
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return bfd_coff_linesz (abfd);
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}
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static void xcoff64_swap_sym_in PARAMS ((bfd *, PTR, PTR));
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static unsigned int xcoff64_swap_sym_out PARAMS ((bfd *, PTR, PTR));
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static void xcoff64_swap_aux_in PARAMS ((bfd *, PTR, int, int, int, int, PTR));
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static unsigned int xcoff64_swap_aux_out PARAMS ((bfd *, PTR, int, int, int, int, PTR));
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static void
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xcoff64_swap_sym_in (abfd, ext1, in1)
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bfd *abfd;
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PTR ext1;
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PTR in1;
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{
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SYMENT *ext = (SYMENT *)ext1;
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struct internal_syment *in = (struct internal_syment *)in1;
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in->_n._n_n._n_zeroes = 0;
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in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e_offset);
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in->n_value = bfd_h_get_64(abfd, (bfd_byte *) ext->e.e_value);
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in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum);
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in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type);
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in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass);
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in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux);
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}
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static unsigned int
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xcoff64_swap_sym_out (abfd, inp, extp)
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bfd *abfd;
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PTR inp;
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PTR extp;
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{
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struct internal_syment *in = (struct internal_syment *)inp;
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SYMENT *ext =(SYMENT *)extp;
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bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e_offset);
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bfd_h_put_64(abfd, in->n_value , (bfd_byte *) ext->e.e_value);
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bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum);
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bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type);
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bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass);
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bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux);
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return bfd_coff_symesz (abfd);
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}
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static void
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xcoff64_swap_aux_in (abfd, ext1, type, class, indx, numaux, in1)
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bfd *abfd;
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PTR ext1;
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int type;
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int class;
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int indx;
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int numaux;
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PTR in1;
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{
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AUXENT *ext = (AUXENT *)ext1;
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union internal_auxent *in = (union internal_auxent *)in1;
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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 =
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bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset);
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} else {
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if (numaux > 1)
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{
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if (indx == 0)
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memcpy (in->x_file.x_fname, ext->x_file.x_fname,
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numaux * sizeof (AUXENT));
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}
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else
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{
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memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN);
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}
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}
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goto end;
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/* RS/6000 "csect" auxents */
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case C_EXT:
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case C_HIDEXT:
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if (indx + 1 == numaux)
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{
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in->x_csect.x_scnlen.l =
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bfd_h_get_32(abfd, ext->x_csect.x_scnlen_lo);
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/* FIXME: If we want section lengths larger than 32 bits, we need
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to modify the internal coff structures to support it. */
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in->x_csect.x_parmhash = bfd_h_get_32 (abfd,
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ext->x_csect.x_parmhash);
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in->x_csect.x_snhash = bfd_h_get_16 (abfd, ext->x_csect.x_snhash);
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/* We don't have to hack bitfields in x_smtyp because it's
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defined by shifts-and-ands, which are equivalent on all
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byte orders. */
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in->x_csect.x_smtyp = bfd_h_get_8 (abfd, ext->x_csect.x_smtyp);
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in->x_csect.x_smclas = bfd_h_get_8 (abfd, ext->x_csect.x_smclas);
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goto end;
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}
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break;
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case C_STAT:
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case C_LEAFSTAT:
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case C_HIDDEN:
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if (type == T_NULL) {
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/* PE defines some extra fields; we zero them out for
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safety. */
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in->x_scn.x_checksum = 0;
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in->x_scn.x_associated = 0;
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in->x_scn.x_comdat = 0;
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goto end;
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}
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break;
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}
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if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
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{
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in->x_sym.x_fcnary.x_fcn.x_lnnoptr = bfd_h_get_64(abfd, (bfd_byte *)
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ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
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in->x_sym.x_fcnary.x_fcn.x_endndx.l = bfd_h_get_32(abfd, (bfd_byte *)
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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_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.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_32(abfd, (bfd_byte *)
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ext->x_sym.x_fcnary.x_lnsz.x_lnno);
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in->x_sym.x_misc.x_lnsz.x_size = bfd_h_get_16(abfd, (bfd_byte *)
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ext->x_sym.x_fcnary.x_lnsz.x_size);
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}
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end: ;
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/* the semicolon is because MSVC doesn't like labels at
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end of block. */
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}
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static unsigned int
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xcoff64_swap_aux_out (abfd, inp, type, class, indx, numaux, extp)
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bfd *abfd;
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PTR inp;
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int type;
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int class;
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int indx ATTRIBUTE_UNUSED;
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int numaux ATTRIBUTE_UNUSED;
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PTR extp;
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{
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union internal_auxent *in = (union internal_auxent *)inp;
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AUXENT *ext = (AUXENT *)extp;
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memset((PTR)ext, 0, bfd_coff_auxesz (abfd));
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switch (class)
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{
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case C_FILE:
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if (in->x_file.x_fname[0] == 0)
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{
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PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes);
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PUTWORD(abfd,
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in->x_file.x_n.x_offset,
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(bfd_byte *) ext->x_file.x_n.x_offset);
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}
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else
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{
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memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN);
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}
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PUTBYTE (abfd, _AUX_FILE, (bfd_byte *) ext->x_auxtype.x_auxtype);
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goto end;
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/* RS/6000 "csect" auxents */
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case C_EXT:
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case C_HIDEXT:
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if (indx + 1 == numaux)
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{
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PUTWORD (abfd, in->x_csect.x_scnlen.l, ext->x_csect.x_scnlen_lo);
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PUTWORD (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash);
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PUTHALF (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash);
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/* We don't have to hack bitfields in x_smtyp because it's
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defined by shifts-and-ands, which are equivalent on all
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byte orders. */
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PUTBYTE (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp);
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PUTBYTE (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas);
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PUTBYTE (abfd, _AUX_CSECT, (bfd_byte *) ext->x_auxtype.x_auxtype);
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goto end;
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}
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break;
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case C_STAT:
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case C_LEAFSTAT:
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case C_HIDDEN:
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if (type == T_NULL) {
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goto end;
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}
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break;
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}
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if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class))
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{
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bfd_h_put_64(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr,
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(bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
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PUTBYTE (abfd, _AUX_FCN, (bfd_byte *) ext->x_auxtype.x_auxtype);
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PUTWORD(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l,
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(bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx);
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}
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if (ISFCN (type))
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PUTWORD (abfd, in->x_sym.x_misc.x_fsize,
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(bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_fsize);
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else
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{
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bfd_h_put_32(abfd, in->x_sym.x_misc.x_lnsz.x_lnno,
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(bfd_byte *)ext->x_sym.x_fcnary.x_lnsz.x_lnno);
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bfd_h_put_16(abfd, in->x_sym.x_misc.x_lnsz.x_size,
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(bfd_byte *)ext->x_sym.x_fcnary.x_lnsz.x_size);
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}
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end:
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return bfd_coff_auxesz (abfd);
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}
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#define coff_SWAP_sym_in xcoff64_swap_sym_in
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#define coff_SWAP_sym_out xcoff64_swap_sym_out
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#define coff_SWAP_aux_in xcoff64_swap_aux_in
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#define coff_SWAP_aux_out xcoff64_swap_aux_out
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#define TARGET_NAME "aixcoff64-rs6000"
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#define TARGET_SYM rs6000coff64_vec
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#include "xcoff-target.h"
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