diff options
Diffstat (limited to 'bfd/coff-aux.c')
| -rw-r--r-- | bfd/coff-aux.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/bfd/coff-aux.c b/bfd/coff-aux.c new file mode 100644 index 0000000..6966392 --- /dev/null +++ b/bfd/coff-aux.c @@ -0,0 +1,135 @@ +/* BFD back-end for Apple M68K COFF A/UX 3.x files. + Copyright 1996, 1997 Free Software Foundation, Inc. + Written by Richard Henderson <rth@tamu.edu>. + +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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#define TARGET_SYM m68kaux_coff_vec +#define TARGET_NAME "coff-m68k-aux" + +#ifndef TARG_AUX +#define TARG_AUX +#endif + +#define COFF_LONG_FILENAMES + +/* 4k pages */ +#define COFF_PAGE_SIZE 0x1000 + +/* On AUX, a STYP_NOLOAD|STYP_BSS section is part of a shared library. */ +#define BSS_NOLOAD_IS_SHARED_LIBRARY + +#define STATIC_RELOCS + +#define COFF_COMMON_ADDEND + +#include "bfd.h" +#include "sysdep.h" + +static boolean coff_m68k_aux_link_add_one_symbol + PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword, + asection *, bfd_vma, const char *, boolean, boolean, + struct bfd_link_hash_entry **)); + +#define coff_link_add_one_symbol coff_m68k_aux_link_add_one_symbol + +#include "coff/aux-coff.h" /* override coff/internal.h and coff/m68k.h */ +#include "coff-m68k.c" + +/* We need non-absolute symbols to override absolute symbols. This + mirrors Apple's "solution" to let a static library symbol override + a shared library symbol. On the whole not a good thing, given how + shared libraries work here, but can work if you are careful with + what you include in the shared object. */ + +static boolean +coff_m68k_aux_link_add_one_symbol (info, abfd, name, flags, section, value, + string, copy, collect, hashp) + struct bfd_link_info *info; + bfd *abfd; + const char *name; + flagword flags; + asection *section; + bfd_vma value; + const char *string; + boolean copy; + boolean collect; + struct bfd_link_hash_entry **hashp; +{ + struct bfd_link_hash_entry *h; + + if ((flags & (BSF_WARNING | BSF_CONSTRUCTOR | BSF_WEAK)) == 0 && + !bfd_is_und_section (section) && + !bfd_is_com_section (section)) + { + /* The new symbol is a definition or an indirect definition */ + + /* This bit copied from linker.c */ + if (hashp != NULL && *hashp != NULL) + { + h = *hashp; + BFD_ASSERT (strcmp (h->root.string, name) == 0); + } + else + { + h = bfd_link_hash_lookup (info->hash, name, true, copy, false); + if (h == NULL) + { + if (hashp != NULL) + *hashp = NULL; + return false; + } + } + + if (info->notice_hash != (struct bfd_hash_table *) NULL + && (bfd_hash_lookup (info->notice_hash, name, false, false) + != (struct bfd_hash_entry *) NULL)) + { + if (! (*info->callbacks->notice) (info, name, abfd, section, value)) + return false; + } + + if (hashp != (struct bfd_link_hash_entry **) NULL) + *hashp = h; + /* end duplication from linker.c */ + + if (h->type == bfd_link_hash_defined + || h->type == bfd_link_hash_indirect) + { + asection *msec; + + if (h->type == bfd_link_hash_defined) + msec = h->u.def.section; + else + msec = bfd_ind_section_ptr; + + if (bfd_is_abs_section (msec) && !bfd_is_abs_section (section)) + { + h->u.def.section = section; + h->u.def.value = value; + return true; + } + else if (bfd_is_abs_section (section) && !bfd_is_abs_section (msec)) + return true; + } + } + + /* If we didn't exit early, finish processing in the generic routine */ + return _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section, + value, string, copy, collect, + hashp); +} |