19990502 sourceware importbinu_ss_19990502

1 files changed, 111 insertions, 0 deletions

diff --git a/bfd/genlink.h b/bfd/genlink.h
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+++ b/bfd/genlink.h
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+/* genlink.h -- interface to the BFD generic linker
+   Copyright 1993, 1994 Free Software Foundation, Inc.
+   Written by Ian Lance Taylor, Cygnus Support.
+
+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.  */
+
+#ifndef GENLINK_H
+#define GENLINK_H
+
+/* This header file is internal to BFD.  It describes the internal
+   structures and functions used by the BFD generic linker, in case
+   any of the more specific linkers want to use or call them.  Note
+   that some functions, such as _bfd_generic_link_hash_table_create,
+   are declared in libbfd.h, because they are expected to be widely
+   used.  The functions and structures in this file will probably only
+   be used by a few files besides linker.c itself.  In fact, this file
+   is not particularly complete; I have only put in the interfaces I
+   actually needed.  */
+
+/* The generic linker uses a hash table which is a derived class of
+   the standard linker hash table, just as the other backend specific
+   linkers do.  Do not confuse the generic linker hash table with the
+   standard BFD linker hash table it is built upon.  */
+
+/* Generic linker hash table entries.  */
+
+struct generic_link_hash_entry
+{
+  struct bfd_link_hash_entry root;
+  /* Whether this symbol has been written out.  */
+  boolean written;
+  /* Symbol from input BFD.  */
+  asymbol *sym;
+};
+
+/* Generic linker hash table.  */
+
+struct generic_link_hash_table
+{
+  struct bfd_link_hash_table root;
+};
+
+/* Look up an entry in an generic link hash table.  */
+
+#define _bfd_generic_link_hash_lookup(table, string, create, copy, follow) \
+  ((struct generic_link_hash_entry *) \
+   bfd_link_hash_lookup (&(table)->root, (string), (create), (copy), (follow)))
+
+/* Traverse an generic link hash table.  */
+
+#define _bfd_generic_link_hash_traverse(table, func, info)		\
+  (bfd_link_hash_traverse						\
+   (&(table)->root,							\
+    (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func),	\
+    (info)))
+
+/* Get the generic link hash table from the info structure.  This is
+   just a cast.  */
+
+#define _bfd_generic_hash_table(p) \
+  ((struct generic_link_hash_table *) ((p)->hash))
+
+/* The generic linker reads in the asymbol structures for an input BFD
+   and keeps them in the outsymbol and symcount fields.  */
+
+#define _bfd_generic_link_get_symbols(abfd) ((abfd)->outsymbols)
+#define _bfd_generic_link_get_symcount(abfd) ((abfd)->symcount)
+
+/* Add the symbols of input_bfd to the symbols being built for
+   output_bfd.  */
+extern boolean _bfd_generic_link_output_symbols
+  PARAMS ((bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *,
+	   size_t *psymalloc));
+
+/* This structure is used to pass information to
+   _bfd_generic_link_write_global_symbol, which may be called via
+   _bfd_generic_link_hash_traverse.  */
+
+struct generic_write_global_symbol_info
+{
+  struct bfd_link_info *info;
+  bfd *output_bfd;
+  size_t *psymalloc;
+};
+
+/* Write out a single global symbol.  This is expected to be called
+   via _bfd_generic_link_hash_traverse.  The second argument must
+   actually be a struct generic_write_global_symbol_info *.  */
+extern boolean _bfd_generic_link_write_global_symbol
+  PARAMS ((struct generic_link_hash_entry *, PTR));
+
+/* Generic link hash table entry creation routine.  */
+struct bfd_hash_entry *_bfd_generic_link_hash_newfunc
+  PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *,
+           const char *));
+
+#endif