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authorRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
committerRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
commit252b5132c753830d5fd56823373aed85f2a0db63 (patch)
tree1af963bfd8d3e55167b81def4207f175eaff3a56 /bfd/coff-aux.c
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19990502 sourceware importbinu_ss_19990502
Diffstat (limited to 'bfd/coff-aux.c')
-rw-r--r--bfd/coff-aux.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/bfd/coff-aux.c b/bfd/coff-aux.c
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+/* 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);
+}