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2a6ad8142d
This symbol is defined in the ldso, and is used both there and libc.so. There is no hidden symbol for it though which leads to relocations in the ldso and the elf/check-localplt test failing. Add a hidden def for rtld to fix all of that. This function/file is only used by hppa & ia64, so no testing is needed for other arches.
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/* Configuration of lookup functions.
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Copyright (C) 2000-2015 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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rtld_hidden_proto (_dl_symbol_address)
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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_DT_FUNCTION_ADDRESS(map, start, attr, addr) \
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attr volatile unsigned long int fptr[2]; \
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fptr[0] = (unsigned long int) (start); \
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fptr[1] = (map)->l_info[DT_PLTGOT]->d_un.d_ptr; \
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addr = (ElfW(Addr)) fptr; \
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#define DL_CALL_DT_INIT(map, start, argc, argv, env) \
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{ \
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ElfW(Addr) addr; \
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DL_DT_FUNCTION_ADDRESS(map, start, , addr) \
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init_t init = (init_t) addr; \
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init (argc, argv, env); \
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}
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#define DL_CALL_DT_FINI(map, start) \
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{ \
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ElfW(Addr) addr; \
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DL_DT_FUNCTION_ADDRESS(map, start, , addr) \
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fini_t fini = (fini_t) addr; \
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fini (); \
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}
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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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