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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [bfd/] [coff-aux.c] - Blame information for rev 299

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1 14 khays
/* BFD back-end for Apple M68K COFF A/UX 3.x files.
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   Copyright 1996, 1997, 2000, 2002, 2005, 2007, 2008, 2011
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   Free Software Foundation, Inc.
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   Written by Richard Henderson <rth@tamu.edu>.
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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 3 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., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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#define TARGET_SYM      m68kaux_coff_vec
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#define TARGET_NAME     "coff-m68k-aux"
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#ifndef TARG_AUX
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#define TARG_AUX
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#endif
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#define COFF_LONG_FILENAMES
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/* 4k pages */
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#define COFF_PAGE_SIZE 0x1000
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/* On AUX, a STYP_NOLOAD|STYP_BSS section is part of a shared library.  */
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#define BSS_NOLOAD_IS_SHARED_LIBRARY
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#define STATIC_RELOCS
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#define COFF_COMMON_ADDEND
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#include "sysdep.h"
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#include "bfd.h"
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static bfd_boolean coff_m68k_aux_link_add_one_symbol
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  PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword,
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           asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
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           struct bfd_link_hash_entry **));
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#define coff_link_add_one_symbol coff_m68k_aux_link_add_one_symbol
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#ifndef bfd_pe_print_pdata
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#define bfd_pe_print_pdata      NULL
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#endif
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#include "coff/aux-coff.h"  /* override coff/internal.h and coff/m68k.h */
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#include "coff-m68k.c"
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/* We need non-absolute symbols to override absolute symbols.  This
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   mirrors Apple's "solution" to let a static library symbol override
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   a shared library symbol.  On the whole not a good thing, given how
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   shared libraries work here, but can work if you are careful with
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   what you include in the shared object.  */
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static bfd_boolean
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coff_m68k_aux_link_add_one_symbol (info, abfd, name, flags, section, value,
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                                   string, copy, collect, hashp)
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     struct bfd_link_info *info;
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     bfd *abfd;
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     const char *name;
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     flagword flags;
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     asection *section;
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     bfd_vma value;
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     const char *string;
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     bfd_boolean copy;
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     bfd_boolean collect;
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     struct bfd_link_hash_entry **hashp;
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{
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  struct bfd_link_hash_entry *h;
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  if ((flags & (BSF_WARNING | BSF_CONSTRUCTOR | BSF_WEAK)) == 0 &&
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      !bfd_is_und_section (section) &&
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      !bfd_is_com_section (section))
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    {
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      /* The new symbol is a definition or an indirect definition */
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      /* This bit copied from linker.c */
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      if (hashp != NULL && *hashp != NULL)
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        {
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          h = *hashp;
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          BFD_ASSERT (strcmp (h->root.string, name) == 0);
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        }
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      else
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        {
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          h = bfd_link_hash_lookup (info->hash, name, TRUE, copy, FALSE);
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          if (h == NULL)
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            {
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              if (hashp != NULL)
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                *hashp = NULL;
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              return FALSE;
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            }
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        }
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      if (info->notice_hash != (struct bfd_hash_table *) NULL
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          && (bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE)
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              != (struct bfd_hash_entry *) NULL))
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        {
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          if (! (*info->callbacks->notice) (info, h, abfd, section, value,
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                                            flags, string))
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            return FALSE;
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        }
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      if (hashp != (struct bfd_link_hash_entry **) NULL)
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        *hashp = h;
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      /* end duplication from linker.c */
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      if (h->type == bfd_link_hash_defined
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          || h->type == bfd_link_hash_indirect)
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        {
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          asection *msec;
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          if (h->type == bfd_link_hash_defined)
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            msec = h->u.def.section;
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          else
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            msec = bfd_ind_section_ptr;
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          if (bfd_is_abs_section (msec) && !bfd_is_abs_section (section))
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            {
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              h->u.def.section = section;
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              h->u.def.value = value;
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              return TRUE;
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            }
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          else if (bfd_is_abs_section (section) && !bfd_is_abs_section (msec))
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            return TRUE;
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        }
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    }
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  /* If we didn't exit early, finish processing in the generic routine */
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  return _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section,
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                                           value, string, copy, collect,
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                                           hashp);
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}

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