/* BFD back-end for Motorola M68K COFF LynxOS files.
- Copyright 1993 Free Software Foundation, Inc.
+ Copyright 1993, 1994 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
#include "bfd.h"
#include "sysdep.h"
-static bfd_reloc_status_type _bfd_m68klynx_special_fn PARAMS ((bfd *abfd,
- arelent *reloc_entry,
- asymbol *symbol,
- PTR data,
- asection *input_section,
- bfd *output_bfd,
- char **error_message));
+#ifdef ANSI_PROTOTYPES
+struct internal_reloc;
+struct coff_link_hash_entry;
+struct internal_syment;
+#endif
+
+static bfd_reloc_status_type _bfd_m68klynx_special_fn
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static boolean lynx_link_add_symbols PARAMS ((bfd *, struct bfd_link_info *));
+static const struct reloc_howto_struct *coff_m68k_lynx_rtype_to_howto
+ PARAMS ((bfd *, asection *, struct internal_reloc *,
+ struct coff_link_hash_entry *, struct internal_syment *,
+ bfd_vma *));
/* For some reason when using m68k COFF the value stored in the .text
section for a reference to a common symbol is the value itself plus
reloc type to make any required adjustments. */
static bfd_reloc_status_type
-_bfd_m68klynx_special_fn (abfd, reloc_entry, symbol, data, input_section, output_bfd,
- error_message)
+_bfd_m68klynx_special_fn (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
bfd *abfd;
arelent *reloc_entry;
asymbol *symbol;
cache_ptr->addend += asect->vma; \
}
+#define coff_bfd_link_add_symbols lynx_link_add_symbols
+#define coff_rtype_to_howto coff_m68k_lynx_rtype_to_howto
#include "coff-m68k.c"
+
+/* On Lynx, we may have a COFF archive which contains a.out elements.
+ This screws up the COFF linker, which expects that any archive it
+ gets contains COFF elements. We override the add_symbols function
+ to check for this case. */
+
+static boolean
+lynx_link_add_symbols (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ if (bfd_get_format (abfd) == bfd_archive)
+ {
+ bfd *first;
+
+ first = bfd_openr_next_archived_file (abfd, (bfd *) NULL);
+ if (first == NULL)
+ return false;
+ if (! bfd_check_format (first, bfd_object))
+ return false;
+ if (bfd_get_flavour (first) != bfd_target_coff_flavour)
+ {
+ /* Treat the archive as though it were actually of the
+ flavour of its first element. This ought to work,
+ since the archive support is fairly generic. */
+ return (*first->xvec->_bfd_link_add_symbols) (abfd, info);
+ }
+ }
+
+ return _bfd_coff_link_add_symbols (abfd, info);
+}
+
+/* coff-m68k.c uses the special COFF backend linker. We need to
+ adjust common symbols.
+
+ We can't define this function until after we have included
+ coff-m68k.c, because it uses RTYPE2HOWTO. */
+
+/*ARGSUSED*/
+static const struct reloc_howto_struct *
+coff_m68k_lynx_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
+ bfd *abfd;
+ asection *sec;
+ struct internal_reloc *rel;
+ struct coff_link_hash_entry *h;
+ struct internal_syment *sym;
+ bfd_vma *addendp;
+{
+ arelent relent;
+ const struct reloc_howto_struct *howto;
+
+ RTYPE2HOWTO (&relent, rel);
+
+ howto = relent.howto;
+
+ if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
+ {
+ /* This is a common symbol. The section contents include the
+ size (sym->n_value) as an addend. The relocate_section
+ function will be adding in the final value of the symbol. We
+ need to subtract out the current size in order to get the
+ correct result. */
+ BFD_ASSERT (h != NULL);
+ *addendp -= sym->n_value;
+ }
+
+ /* If the output symbol is common (in which case this must be a
+ relocateable link), we need to add in the final size of the
+ common symbol. */
+ if (h != NULL && h->root.type == bfd_link_hash_common)
+ *addendp += h->root.u.c.size;
+
+ return howto;
+}