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72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/* Configuration of lookup functions.
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Copyright (C) 2000-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define ELF_FUNCTION_PTR_IS_SPECIAL
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#define DL_UNMAP_IS_SPECIAL
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#include <dl-fptr.h>
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/* We do not support copy relocations for IA-64. */
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#define DL_NO_COPY_RELOCS
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/* Forward declaration. */
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struct link_map;
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extern void *_dl_symbol_address (struct link_map *map, const Elf64_Sym *ref);
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#define DL_SYMBOL_ADDRESS(map, ref) _dl_symbol_address(map, ref)
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extern Elf64_Addr _dl_lookup_address (const void *address);
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#define DL_LOOKUP_ADDRESS(addr) _dl_lookup_address (addr)
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extern void _dl_unmap (struct link_map *map);
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#define DL_UNMAP(map) _dl_unmap (map)
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#define DL_AUTO_FUNCTION_ADDRESS(map, addr) \
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({ \
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unsigned long int fptr[2]; \
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fptr[0] = (unsigned long int) (addr); \
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fptr[1] = (map)->l_info[DT_PLTGOT]->d_un.d_ptr; \
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(Elf64_Addr) fptr; \
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})
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#define DL_STATIC_FUNCTION_ADDRESS(map, addr) \
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({ \
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static unsigned long int fptr[2]; \
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fptr[0] = (unsigned long int) (addr); \
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fptr[1] = (map)->l_info[DT_PLTGOT]->d_un.d_ptr; \
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(Elf64_Addr) fptr; \
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})
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#define DL_DT_INIT_ADDRESS(map, addr) DL_AUTO_FUNCTION_ADDRESS (map, addr)
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#define DL_DT_FINI_ADDRESS(map, addr) DL_AUTO_FUNCTION_ADDRESS (map, addr)
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/* The type of the return value of fixup/profile_fixup. */
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#define DL_FIXUP_VALUE_TYPE struct fdesc
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/* Construct a value of type DL_FIXUP_VALUE_TYPE from a code address
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and a link map. */
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#define DL_FIXUP_MAKE_VALUE(map, addr) \
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((struct fdesc) { (addr), (map)->l_info[DT_PLTGOT]->d_un.d_ptr })
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/* Extract the code address from a value of type DL_FIXUP_MAKE_VALUE.
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*/
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#define DL_FIXUP_VALUE_CODE_ADDR(value) (value).ip
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#define DL_FIXUP_VALUE_ADDR(value) ((uintptr_t) &(value))
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#define DL_FIXUP_ADDR_VALUE(addr) (*(struct fdesc *) (addr))
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