19990502 sourceware import

1 files changed, 135 insertions, 0 deletions

diff --git a/bfd/coff-aux.c b/bfd/coff-aux.c
new file mode 100644
index 0000000000..6966392a33
--- /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);
+}