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/* Generic ECOFF swapping routines, for BFD.

   Copyright 1992, 1993, 1994, 1995, 1996, 2000, 2001, 2002, 2004, 2005,

   2007  Free Software Foundation, Inc.

   Written by Cygnus Support.

   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 3 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., 51 Franklin Street - Fifth Floor, Boston,

   MA 02110-1301, USA.  */

/* NOTE: This is a header file, but it contains executable routines.

   This is done this way because these routines are substantially

   similar, but are not identical, for all ECOFF targets.

   These are routines to swap the ECOFF symbolic information in and

   out.  The routines are defined statically.  You can set breakpoints

   on them in gdb by naming the including source file; e.g.,

   'coff-mips.c':ecoff_swap_hdr_in.

   Before including this header file, one of ECOFF_32, ECOFF_64,

   ECOFF_SIGNED_32 or ECOFF_SIGNED_64 must be defined.  These are

   checked when swapping information that depends upon the target

   size.  This code works for 32 bit and 64 bit ECOFF, but may need to

   be generalized in the future.

   Some header file which defines the external forms of these

   structures must also be included before including this header file.

   Currently this is either coff/mips.h or coff/alpha.h.

   If the symbol TEST is defined when this file is compiled, a

   comparison is made to ensure that, in fact, the output is

   bit-for-bit the same as the input.  Of course, this symbol should

   only be defined when deliberately testing the code on a machine

   with the proper byte sex and such.  */

#ifdef ECOFF_32

#define ECOFF_GET_OFF H_GET_32

#define ECOFF_PUT_OFF H_PUT_32

#endif

#ifdef ECOFF_64

#define ECOFF_GET_OFF H_GET_64

#define ECOFF_PUT_OFF H_PUT_64

#endif

#ifdef ECOFF_SIGNED_32

#define ECOFF_GET_OFF H_GET_S32

#define ECOFF_PUT_OFF H_PUT_S32

#endif

#ifdef ECOFF_SIGNED_64

#define ECOFF_GET_OFF H_GET_S64

#define ECOFF_PUT_OFF H_PUT_S64

#endif

/* ECOFF auxiliary information swapping routines.  These are the same

   for all ECOFF targets, so they are defined in ecofflink.c.  */

extern void _bfd_ecoff_swap_tir_in

  (int, const struct tir_ext *, TIR *);

extern void _bfd_ecoff_swap_tir_out

  (int, const TIR *, struct tir_ext *);

extern void _bfd_ecoff_swap_rndx_in

  (int, const struct rndx_ext *, RNDXR *);

extern void _bfd_ecoff_swap_rndx_out

  (int, const RNDXR *, struct rndx_ext *);

/* Prototypes for functions defined in this file.  */

static void ecoff_swap_hdr_in (bfd *, void *, HDRR *);

static void ecoff_swap_hdr_out (bfd *, const HDRR *, void *);

static void ecoff_swap_fdr_in (bfd *, void *, FDR *);

static void ecoff_swap_fdr_out (bfd *, const FDR *, void *);

static void ecoff_swap_pdr_in (bfd *, void *, PDR *);

static void ecoff_swap_pdr_out (bfd *, const PDR *, void *);

static void ecoff_swap_sym_in (bfd *, void *, SYMR *);

static void ecoff_swap_sym_out (bfd *, const SYMR *, void *);

static void ecoff_swap_ext_in (bfd *, void *, EXTR *);

static void ecoff_swap_ext_out (bfd *, const EXTR *, void *);

static void ecoff_swap_rfd_in (bfd *, void *, RFDT *);

static void ecoff_swap_rfd_out (bfd *, const RFDT *, void *);

static void ecoff_swap_opt_in (bfd *, void *, OPTR *);

static void ecoff_swap_opt_out (bfd *, const OPTR *, void *);

static void ecoff_swap_dnr_in (bfd *, void *, DNR *);

static void ecoff_swap_dnr_out (bfd *, const DNR *, void *);

/* Swap in the symbolic header.  */

static void

ecoff_swap_hdr_in (bfd *abfd, void * ext_copy, HDRR *intern)

{

  struct hdr_ext ext[1];

  *ext = *(struct hdr_ext *) ext_copy;

  intern->magic         = H_GET_S16     (abfd, ext->h_magic);

  intern->vstamp        = H_GET_S16     (abfd, ext->h_vstamp);

  intern->ilineMax      = H_GET_32      (abfd, ext->h_ilineMax);

  intern->cbLine        = ECOFF_GET_OFF (abfd, ext->h_cbLine);

  intern->cbLineOffset  = ECOFF_GET_OFF (abfd, ext->h_cbLineOffset);

  intern->idnMax        = H_GET_32      (abfd, ext->h_idnMax);

  intern->cbDnOffset    = ECOFF_GET_OFF (abfd, ext->h_cbDnOffset);

  intern->ipdMax        = H_GET_32      (abfd, ext->h_ipdMax);

  intern->cbPdOffset    = ECOFF_GET_OFF (abfd, ext->h_cbPdOffset);

  intern->isymMax       = H_GET_32      (abfd, ext->h_isymMax);

  intern->cbSymOffset   = ECOFF_GET_OFF (abfd, ext->h_cbSymOffset);

  intern->ioptMax       = H_GET_32      (abfd, ext->h_ioptMax);

  intern->cbOptOffset   = ECOFF_GET_OFF (abfd, ext->h_cbOptOffset);

  intern->iauxMax       = H_GET_32      (abfd, ext->h_iauxMax);

  intern->cbAuxOffset   = ECOFF_GET_OFF (abfd, ext->h_cbAuxOffset);

  intern->issMax        = H_GET_32      (abfd, ext->h_issMax);

  intern->cbSsOffset    = ECOFF_GET_OFF (abfd, ext->h_cbSsOffset);

  intern->issExtMax     = H_GET_32      (abfd, ext->h_issExtMax);

  intern->cbSsExtOffset = ECOFF_GET_OFF (abfd, ext->h_cbSsExtOffset);

  intern->ifdMax        = H_GET_32      (abfd, ext->h_ifdMax);

  intern->cbFdOffset    = ECOFF_GET_OFF (abfd, ext->h_cbFdOffset);

  intern->crfd          = H_GET_32      (abfd, ext->h_crfd);

  intern->cbRfdOffset   = ECOFF_GET_OFF (abfd, ext->h_cbRfdOffset);

  intern->iextMax       = H_GET_32      (abfd, ext->h_iextMax);

  intern->cbExtOffset   = ECOFF_GET_OFF (abfd, ext->h_cbExtOffset);

#ifdef TEST

  if (memcmp ((char *) ext, (char *) intern, sizeof (*intern)) != 0)

    abort ();

#endif

}

/* Swap out the symbolic header.  */

static void

ecoff_swap_hdr_out (bfd *abfd, const HDRR *intern_copy, void * ext_ptr)

{

  struct hdr_ext *ext = (struct hdr_ext *) ext_ptr;

  HDRR intern[1];

  *intern = *intern_copy;

  H_PUT_S16     (abfd, intern->magic,         ext->h_magic);

  H_PUT_S16     (abfd, intern->vstamp,        ext->h_vstamp);

  H_PUT_32      (abfd, intern->ilineMax,      ext->h_ilineMax);

  ECOFF_PUT_OFF (abfd, intern->cbLine,        ext->h_cbLine);

  ECOFF_PUT_OFF (abfd, intern->cbLineOffset,  ext->h_cbLineOffset);

  H_PUT_32      (abfd, intern->idnMax,        ext->h_idnMax);

  ECOFF_PUT_OFF (abfd, intern->cbDnOffset,    ext->h_cbDnOffset);

  H_PUT_32      (abfd, intern->ipdMax,        ext->h_ipdMax);

  ECOFF_PUT_OFF (abfd, intern->cbPdOffset,    ext->h_cbPdOffset);

  H_PUT_32      (abfd, intern->isymMax,       ext->h_isymMax);

  ECOFF_PUT_OFF (abfd, intern->cbSymOffset,   ext->h_cbSymOffset);

  H_PUT_32      (abfd, intern->ioptMax,       ext->h_ioptMax);

  ECOFF_PUT_OFF (abfd, intern->cbOptOffset,   ext->h_cbOptOffset);

  H_PUT_32      (abfd, intern->iauxMax,       ext->h_iauxMax);

  ECOFF_PUT_OFF (abfd, intern->cbAuxOffset,   ext->h_cbAuxOffset);

  H_PUT_32      (abfd, intern->issMax,        ext->h_issMax);

  ECOFF_PUT_OFF (abfd, intern->cbSsOffset,    ext->h_cbSsOffset);

  H_PUT_32      (abfd, intern->issExtMax,     ext->h_issExtMax);

  ECOFF_PUT_OFF (abfd, intern->cbSsExtOffset, ext->h_cbSsExtOffset);

  H_PUT_32      (abfd, intern->ifdMax,        ext->h_ifdMax);

  ECOFF_PUT_OFF (abfd, intern->cbFdOffset,    ext->h_cbFdOffset);

  H_PUT_32      (abfd, intern->crfd,          ext->h_crfd);

  ECOFF_PUT_OFF (abfd, intern->cbRfdOffset,   ext->h_cbRfdOffset);

  H_PUT_32      (abfd, intern->iextMax,       ext->h_iextMax);

  ECOFF_PUT_OFF (abfd, intern->cbExtOffset,   ext->h_cbExtOffset);

#ifdef TEST

  if (memcmp ((char *) ext, (char *) intern, sizeof (*intern)) != 0)

    abort ();

#endif

}

/* Swap in the file descriptor record.  */

static void

ecoff_swap_fdr_in (bfd *abfd, void * ext_copy, FDR *intern)

{

  struct fdr_ext ext[1];

  *ext = *(struct fdr_ext *) ext_copy;

  intern->adr           = ECOFF_GET_OFF (abfd, ext->f_adr);

  intern->rss           = H_GET_32 (abfd, ext->f_rss);

#if defined (ECOFF_64) || defined (ECOFF_SIGNED_64)

  if (intern->rss == (signed long) 0xffffffff)

    intern->rss = -1;

#endif

  intern->issBase       = H_GET_32 (abfd, ext->f_issBase);

  intern->cbSs          = ECOFF_GET_OFF (abfd, ext->f_cbSs);

  intern->isymBase      = H_GET_32 (abfd, ext->f_isymBase);

  intern->csym          = H_GET_32 (abfd, ext->f_csym);

  intern->ilineBase     = H_GET_32 (abfd, ext->f_ilineBase);

  intern->cline         = H_GET_32 (abfd, ext->f_cline);

  intern->ioptBase      = H_GET_32 (abfd, ext->f_ioptBase);

  intern->copt          = H_GET_32 (abfd, ext->f_copt);

#if defined (ECOFF_32) || defined (ECOFF_SIGNED_32)

  intern->ipdFirst      = H_GET_16 (abfd, ext->f_ipdFirst);

  intern->cpd           = H_GET_16 (abfd, ext->f_cpd);

#endif

#if defined (ECOFF_64) || defined (ECOFF_SIGNED_64)

  intern->ipdFirst      = H_GET_32 (abfd, ext->f_ipdFirst);

  intern->cpd           = H_GET_32 (abfd, ext->f_cpd);

#endif

  intern->iauxBase      = H_GET_32 (abfd, ext->f_iauxBase);

  intern->caux          = H_GET_32 (abfd, ext->f_caux);

  intern->rfdBase       = H_GET_32 (abfd, ext->f_rfdBase);

  intern->crfd          = H_GET_32 (abfd, ext->f_crfd);

  /* Now the fun stuff...  */

  if (bfd_header_big_endian (abfd))

    {

      intern->lang       = ((ext->f_bits1[0] & FDR_BITS1_LANG_BIG)

                            >> FDR_BITS1_LANG_SH_BIG);

      intern->fMerge     = 0 != (ext->f_bits1[0] & FDR_BITS1_FMERGE_BIG);

      intern->fReadin    = 0 != (ext->f_bits1[0] & FDR_BITS1_FREADIN_BIG);

      intern->fBigendian = 0 != (ext->f_bits1[0] & FDR_BITS1_FBIGENDIAN_BIG);

      intern->glevel     = ((ext->f_bits2[0] & FDR_BITS2_GLEVEL_BIG)

                            >> FDR_BITS2_GLEVEL_SH_BIG);

    }

  else

    {

      intern->lang       = ((ext->f_bits1[0] & FDR_BITS1_LANG_LITTLE)

                            >> FDR_BITS1_LANG_SH_LITTLE);

      intern->fMerge     = 0 != (ext->f_bits1[0] & FDR_BITS1_FMERGE_LITTLE);

      intern->fReadin    = 0 != (ext->f_bits1[0] & FDR_BITS1_FREADIN_LITTLE);

      intern->fBigendian = 0 != (ext->f_bits1[0] & FDR_BITS1_FBIGENDIAN_LITTLE);

      intern->glevel     = ((ext->f_bits2[0] & FDR_BITS2_GLEVEL_LITTLE)

                            >> FDR_BITS2_GLEVEL_SH_LITTLE);

    }

  intern->reserved = 0;

  intern->cbLineOffset  = ECOFF_GET_OFF (abfd, ext->f_cbLineOffset);

  intern->cbLine        = ECOFF_GET_OFF (abfd, ext->f_cbLine);

#ifdef TEST

  if (memcmp ((char *) ext, (char *) intern, sizeof (*intern)) != 0)

    abort ();

#endif

}

/* Swap out the file descriptor record.  */

static void

ecoff_swap_fdr_out (bfd *abfd, const FDR *intern_copy, void * ext_ptr)

{

  struct fdr_ext *ext = (struct fdr_ext *) ext_ptr;

  FDR intern[1];

  /* Make it reasonable to do in-place.  */

  *intern = *intern_copy;

  ECOFF_PUT_OFF (abfd, intern->adr,       ext->f_adr);

  H_PUT_32      (abfd, intern->rss,       ext->f_rss);

  H_PUT_32      (abfd, intern->issBase,   ext->f_issBase);

  ECOFF_PUT_OFF (abfd, intern->cbSs,      ext->f_cbSs);

  H_PUT_32      (abfd, intern->isymBase,  ext->f_isymBase);

  H_PUT_32      (abfd, intern->csym,      ext->f_csym);

  H_PUT_32      (abfd, intern->ilineBase, ext->f_ilineBase);

  H_PUT_32      (abfd, intern->cline,     ext->f_cline);

  H_PUT_32      (abfd, intern->ioptBase,  ext->f_ioptBase);

  H_PUT_32      (abfd, intern->copt,      ext->f_copt);

#if defined (ECOFF_32) || defined (ECOFF_SIGNED_32)

  H_PUT_16      (abfd, intern->ipdFirst,  ext->f_ipdFirst);

  H_PUT_16      (abfd, intern->cpd,       ext->f_cpd);

#endif

#if defined (ECOFF_64) || defined (ECOFF_SIGNED_64)

  H_PUT_32      (abfd, intern->ipdFirst,  ext->f_ipdFirst);

  H_PUT_32      (abfd, intern->cpd,       ext->f_cpd);

#endif

  H_PUT_32      (abfd, intern->iauxBase,  ext->f_iauxBase);

  H_PUT_32      (abfd, intern->caux,      ext->f_caux);

  H_PUT_32      (abfd, intern->rfdBase,   ext->f_rfdBase);

  H_PUT_32      (abfd, intern->crfd,      ext->f_crfd);

  /* Now the fun stuff...  */

  if (bfd_header_big_endian (abfd))

    {

      ext->f_bits1[0] = (((intern->lang << FDR_BITS1_LANG_SH_BIG)

                          & FDR_BITS1_LANG_BIG)

                         | (intern->fMerge ? FDR_BITS1_FMERGE_BIG : 0)

                         | (intern->fReadin ? FDR_BITS1_FREADIN_BIG : 0)

                         | (intern->fBigendian ? FDR_BITS1_FBIGENDIAN_BIG : 0));

      ext->f_bits2[0] = ((intern->glevel << FDR_BITS2_GLEVEL_SH_BIG)

                         & FDR_BITS2_GLEVEL_BIG);

      ext->f_bits2[1] = 0;

      ext->f_bits2[2] = 0;

    }

  else

    {

      ext->f_bits1[0] = (((intern->lang << FDR_BITS1_LANG_SH_LITTLE)

                          & FDR_BITS1_LANG_LITTLE)

                         | (intern->fMerge ? FDR_BITS1_FMERGE_LITTLE : 0)

                         | (intern->fReadin ? FDR_BITS1_FREADIN_LITTLE : 0)

                         | (intern->fBigendian ? FDR_BITS1_FBIGENDIAN_LITTLE : 0));

      ext->f_bits2[0] = ((intern->glevel << FDR_BITS2_GLEVEL_SH_LITTLE)

                         & FDR_BITS2_GLEVEL_LITTLE);

      ext->f_bits2[1] = 0;

      ext->f_bits2[2] = 0;

    }

  ECOFF_PUT_OFF (abfd, intern->cbLineOffset, ext->f_cbLineOffset);

  ECOFF_PUT_OFF (abfd, intern->cbLine, ext->f_cbLine);

#ifdef TEST

  if (memcmp ((char *) ext, (char *) intern, sizeof (*intern)) != 0)

    abort ();

#endif

}

/* Swap in the procedure descriptor record.  */

static void

ecoff_swap_pdr_in (bfd *abfd, void * ext_copy, PDR *intern)

{

  struct pdr_ext ext[1];

  *ext = *(struct pdr_ext *) ext_copy;

  memset ((void *) intern, 0, sizeof (*intern));

  intern->adr           = ECOFF_GET_OFF (abfd, ext->p_adr);

  intern->isym          = H_GET_32 (abfd, ext->p_isym);

  intern->iline         = H_GET_32 (abfd, ext->p_iline);

  intern->regmask       = H_GET_32 (abfd, ext->p_regmask);

  intern->regoffset     = H_GET_S32 (abfd, ext->p_regoffset);

  intern->iopt          = H_GET_S32 (abfd, ext->p_iopt);

  intern->fregmask      = H_GET_32 (abfd, ext->p_fregmask);

  intern->fregoffset    = H_GET_S32 (abfd, ext->p_fregoffset);

  intern->frameoffset   = H_GET_S32 (abfd, ext->p_frameoffset);

  intern->framereg      = H_GET_16 (abfd, ext->p_framereg);

  intern->pcreg         = H_GET_16 (abfd, ext->p_pcreg);

  intern->lnLow         = H_GET_32 (abfd, ext->p_lnLow);

  intern->lnHigh        = H_GET_32 (abfd, ext->p_lnHigh);

  intern->cbLineOffset  = ECOFF_GET_OFF (abfd, ext->p_cbLineOffset);

#if defined (ECOFF_64) || defined (ECOFF_SIGNED_64)

  if (intern->isym == (signed long) 0xffffffff)

    intern->isym = -1;

  if (intern->iline == (signed long) 0xffffffff)

    intern->iline = -1;

  intern->gp_prologue = H_GET_8 (abfd, ext->p_gp_prologue);

  if (bfd_header_big_endian (abfd))

    {

      intern->gp_used = 0 != (ext->p_bits1[0] & PDR_BITS1_GP_USED_BIG);

      intern->reg_frame = 0 != (ext->p_bits1[0] & PDR_BITS1_REG_FRAME_BIG);

      intern->prof = 0 != (ext->p_bits1[0] & PDR_BITS1_PROF_BIG);

      intern->reserved = (((ext->p_bits1[0] & PDR_BITS1_RESERVED_BIG)

                           << PDR_BITS1_RESERVED_SH_LEFT_BIG)

                          | ((ext->p_bits2[0] & PDR_BITS2_RESERVED_BIG)

                             >> PDR_BITS2_RESERVED_SH_BIG));

    }

  else

    {

      intern->gp_used = 0 != (ext->p_bits1[0] & PDR_BITS1_GP_USED_LITTLE);

      intern->reg_frame = 0 != (ext->p_bits1[0] & PDR_BITS1_REG_FRAME_LITTLE);

      intern->prof = 0 != (ext->p_bits1[0] & PDR_BITS1_PROF_LITTLE);

      intern->reserved = (((ext->p_bits1[0] & PDR_BITS1_RESERVED_LITTLE)

                           >> PDR_BITS1_RESERVED_SH_LITTLE)

                          | ((ext->p_bits2[0] & PDR_BITS2_RESERVED_LITTLE)

                             << PDR_BITS2_RESERVED_SH_LEFT_LITTLE));

    }

  intern->localoff = H_GET_8 (abfd, ext->p_localoff);

#endif

#ifdef TEST

  if (memcmp ((char *) ext, (char *) intern, sizeof (*intern)) != 0)

    abort ();

#endif

}

/* Swap out the procedure descriptor record.  */

static void

ecoff_swap_pdr_out (bfd *abfd, const PDR *intern_copy, void * ext_ptr)

{

  struct pdr_ext *ext = (struct pdr_ext *) ext_ptr;

  PDR intern[1];

  /* Make it reasonable to do in-place.  */

  *intern = *intern_copy;

  ECOFF_PUT_OFF (abfd, intern->adr,          ext->p_adr);

  H_PUT_32      (abfd, intern->isym,         ext->p_isym);

  H_PUT_32      (abfd, intern->iline,        ext->p_iline);

  H_PUT_32      (abfd, intern->regmask,      ext->p_regmask);

  H_PUT_32      (abfd, intern->regoffset,    ext->p_regoffset);

  H_PUT_32      (abfd, intern->iopt,         ext->p_iopt);

  H_PUT_32      (abfd, intern->fregmask,     ext->p_fregmask);

  H_PUT_32      (abfd, intern->fregoffset,   ext->p_fregoffset);

  H_PUT_32      (abfd, intern->frameoffset,  ext->p_frameoffset);

  H_PUT_16      (abfd, intern->framereg,     ext->p_framereg);

  H_PUT_16      (abfd, intern->pcreg,        ext->p_pcreg);

  H_PUT_32      (abfd, intern->lnLow,        ext->p_lnLow);

  H_PUT_32      (abfd, intern->lnHigh,       ext->p_lnHigh);

  ECOFF_PUT_OFF (abfd, intern->cbLineOffset, ext->p_cbLineOffset);

#if defined (ECOFF_64) || defined (ECOFF_SIGNED_64)

  H_PUT_8       (abfd, intern->gp_prologue,  ext->p_gp_prologue);

  if (bfd_header_big_endian (abfd))

    {

      ext->p_bits1[0] = ((intern->gp_used ? PDR_BITS1_GP_USED_BIG : 0)

                         | (intern->reg_frame ? PDR_BITS1_REG_FRAME_BIG : 0)

                         | (intern->prof ? PDR_BITS1_PROF_BIG : 0)

                         | ((intern->reserved

                             >> PDR_BITS1_RESERVED_SH_LEFT_BIG)

                            & PDR_BITS1_RESERVED_BIG));

      ext->p_bits2[0] = ((intern->reserved << PDR_BITS2_RESERVED_SH_BIG)

                         & PDR_BITS2_RESERVED_BIG);

    }

  else

    {

      ext->p_bits1[0] = ((intern->gp_used ? PDR_BITS1_GP_USED_LITTLE : 0)

                         | (intern->reg_frame ? PDR_BITS1_REG_FRAME_LITTLE : 0)

                         | (intern->prof ? PDR_BITS1_PROF_LITTLE : 0)

                         | ((intern->reserved << PDR_BITS1_RESERVED_SH_LITTLE)

                            & PDR_BITS1_RESERVED_LITTLE));

      ext->p_bits2[0] = ((intern->reserved >>

                          PDR_BITS2_RESERVED_SH_LEFT_LITTLE)

                         & PDR_BITS2_RESERVED_LITTLE);

    }

  H_PUT_8 (abfd, intern->localoff, ext->p_localoff);

#endif

#ifdef TEST

  if (memcmp ((char *) ext, (char *) intern, sizeof (*intern)) != 0)

    abort ();

#endif

}

/* Swap in a symbol record.  */

static void

ecoff_swap_sym_in (bfd *abfd, void * ext_copy, SYMR *intern)

{

  struct sym_ext ext[1];

  *ext = *(struct sym_ext *) ext_copy;

  intern->iss           = H_GET_32 (abfd, ext->s_iss);

  intern->value         = ECOFF_GET_OFF (abfd, ext->s_value);

#if defined (ECOFF_64) || defined (ECOFF_SIGNED_64)

  if (intern->iss == (signed long) 0xffffffff)

    intern->iss = -1;

#endif  

  /* Now the fun stuff...  */

  if (bfd_header_big_endian (abfd))

    {

      intern->st          =  (ext->s_bits1[0] & SYM_BITS1_ST_BIG)

                                             >> SYM_BITS1_ST_SH_BIG;

      intern->sc          = ((ext->s_bits1[0] & SYM_BITS1_SC_BIG)

                                             << SYM_BITS1_SC_SH_LEFT_BIG)

                          | ((ext->s_bits2[0] & SYM_BITS2_SC_BIG)

                                             >> SYM_BITS2_SC_SH_BIG);

      intern->reserved    = 0 != (ext->s_bits2[0] & SYM_BITS2_RESERVED_BIG);

      intern->index       = ((ext->s_bits2[0] & SYM_BITS2_INDEX_BIG)

                                             << SYM_BITS2_INDEX_SH_LEFT_BIG)

                          | (ext->s_bits3[0] << SYM_BITS3_INDEX_SH_LEFT_BIG)

                          | (ext->s_bits4[0] << SYM_BITS4_INDEX_SH_LEFT_BIG);

    }

  else

    {

      intern->st          =  (ext->s_bits1[0] & SYM_BITS1_ST_LITTLE)

                                             >> SYM_BITS1_ST_SH_LITTLE;

      intern->sc          = ((ext->s_bits1[0] & SYM_BITS1_SC_LITTLE)

                                             >> SYM_BITS1_SC_SH_LITTLE)

                          | ((ext->s_bits2[0] & SYM_BITS2_SC_LITTLE)

                                             << SYM_BITS2_SC_SH_LEFT_LITTLE);

      intern->reserved    = 0 != (ext->s_bits2[0] & SYM_BITS2_RESERVED_LITTLE);

      intern->index       = ((ext->s_bits2[0] & SYM_BITS2_INDEX_LITTLE)

                                             >> SYM_BITS2_INDEX_SH_LITTLE)

                          | (ext->s_bits3[0] << SYM_BITS3_INDEX_SH_LEFT_LITTLE)

                          | ((unsigned int) ext->s_bits4[0]

                             << SYM_BITS4_INDEX_SH_LEFT_LITTLE);

    }

#ifdef TEST

  if (memcmp ((char *) ext, (char *) intern, sizeof (*intern)) != 0)

    abort ();

#endif

}

/* Swap out a symbol record.  */

static void

ecoff_swap_sym_out (bfd *abfd, const SYMR *intern_copy, void * ext_ptr)

{

  struct sym_ext *ext = (struct sym_ext *) ext_ptr;

  SYMR intern[1];

  /* Make it reasonable to do in-place.  */

  *intern = *intern_copy;

  H_PUT_32 (abfd, intern->iss, ext->s_iss);

  ECOFF_PUT_OFF (abfd, intern->value, ext->s_value);

  /* Now the fun stuff...  */

  if (bfd_header_big_endian (abfd))

    {

      ext->s_bits1[0] = (((intern->st << SYM_BITS1_ST_SH_BIG)

                          & SYM_BITS1_ST_BIG)

                         | ((intern->sc >> SYM_BITS1_SC_SH_LEFT_BIG)

                            & SYM_BITS1_SC_BIG));

      ext->s_bits2[0] = (((intern->sc << SYM_BITS2_SC_SH_BIG)

                          & SYM_BITS2_SC_BIG)

                         | (intern->reserved ? SYM_BITS2_RESERVED_BIG : 0)

                         | ((intern->index >> SYM_BITS2_INDEX_SH_LEFT_BIG)

                            & SYM_BITS2_INDEX_BIG));

      ext->s_bits3[0] = (intern->index >> SYM_BITS3_INDEX_SH_LEFT_BIG) & 0xff;

      ext->s_bits4[0] = (intern->index >> SYM_BITS4_INDEX_SH_LEFT_BIG) & 0xff;

    }

  else

    {

      ext->s_bits1[0] = (((intern->st << SYM_BITS1_ST_SH_LITTLE)

                          & SYM_BITS1_ST_LITTLE)

                         | ((intern->sc << SYM_BITS1_SC_SH_LITTLE)

                            & SYM_BITS1_SC_LITTLE));

      ext->s_bits2[0] = (((intern->sc >> SYM_BITS2_SC_SH_LEFT_LITTLE)

                          & SYM_BITS2_SC_LITTLE)

                         | (intern->reserved ? SYM_BITS2_RESERVED_LITTLE : 0)

                         | ((intern->index << SYM_BITS2_INDEX_SH_LITTLE)

                            & SYM_BITS2_INDEX_LITTLE));

      ext->s_bits3[0] = (intern->index >> SYM_BITS3_INDEX_SH_LEFT_LITTLE) & 0xff;

      ext->s_bits4[0] = (intern->index >> SYM_BITS4_INDEX_SH_LEFT_LITTLE) & 0xff;

    }

#ifdef TEST

  if (memcmp ((char *) ext, (char *) intern, sizeof (*intern)) != 0)

    abort ();

#endif

}

/* Swap in an external symbol record.  */

static void

ecoff_swap_ext_in (bfd *abfd, void * ext_copy, EXTR *intern)

{

  struct ext_ext ext[1];

  *ext = *(struct ext_ext *) ext_copy;

  /* Now the fun stuff...  */

  if (bfd_header_big_endian (abfd))

    {

      intern->jmptbl      = 0 != (ext->es_bits1[0] & EXT_BITS1_JMPTBL_BIG);

      intern->cobol_main  = 0 != (ext->es_bits1[0] & EXT_BITS1_COBOL_MAIN_BIG);

      intern->weakext     = 0 != (ext->es_bits1[0] & EXT_BITS1_WEAKEXT_BIG);

    }

  else

    {

      intern->jmptbl      = 0 != (ext->es_bits1[0] & EXT_BITS1_JMPTBL_LITTLE);

      intern->cobol_main  = 0 != (ext->es_bits1[0] & EXT_BITS1_COBOL_MAIN_LITTLE);

      intern->weakext     = 0 != (ext->es_bits1[0] & EXT_BITS1_WEAKEXT_LITTLE);

    }

  intern->reserved = 0;

#if defined (ECOFF_32) || defined (ECOFF_SIGNED_32)

  intern->ifd = H_GET_S16 (abfd, ext->es_ifd);

#endif