dl-lookupcfg.h

/* Configuration of lookup functions.
   Copyright (C) 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

/* Like IA-64, PA-RISC needs more information from the symbol lookup
   function than just the address. */
#define DL_LOOKUP_RETURNS_MAP
#define ELF_FUNCTION_PTR_IS_SPECIAL
#define DL_UNMAP_IS_SPECIAL

/* Forward declaration.  */
struct link_map;

void *_dl_symbol_address (const struct link_map *map, const ElfW(Sym) *ref);

#define DL_SYMBOL_ADDRESS(map, ref) _dl_symbol_address(map, ref)

Elf32_Addr _dl_lookup_address (const void *address);

#define DL_LOOKUP_ADDRESS(addr) _dl_lookup_address (addr)

void _dl_unmap (struct link_map *map);

#define DL_UNMAP(map) _dl_unmap (map)

extern Elf32_Addr _dl_function_address (const struct link_map *map,
					Elf32_Addr start);

#define DL_FUNCTION_ADDRESS(map, addr) _dl_function_address (map, addr)

/* The test for "addr & 2" below is to accomodate old binaries which
   violated the ELF ABI by pointing DT_INIT and DT_FINI at a function
   pointer.  */
#define DL_DT_INIT_ADDRESS(map, addr) \
  ((Elf32_Addr)(addr) & 2 ? (addr) : DL_FUNCTION_ADDRESS (map, addr))
#define DL_DT_FINI_ADDRESS(map, addr) \
  ((Elf32_Addr)(addr) & 2 ? (addr) : DL_FUNCTION_ADDRESS (map, addr))