sysdeps/powerpc/dl-lookupcfg.h

   1 /* Configuration of lookup functions.  PowerPC version.
   2    Copyright (C) 2022-2024 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #define DL_FIXUP_VALUE_TYPE ElfW(Addr)
  20 #define DL_FIXUP_MAKE_VALUE(map, addr) (addr)
  21 #define DL_FIXUP_VALUE_CODE_ADDR(value) (value)
  22 #define DL_FIXUP_VALUE_ADDR(value) (value)
  23 #define DL_FIXUP_ADDR_VALUE(addr) (addr)
  24 #if __WORDSIZE == 64 && _CALL_ELF == 1
  25 /* We need to correctly set the audit modules value for bind-now.  */
  26 # define DL_FIXUP_BINDNOW_ADDR_VALUE(addr) \
  27  (((Elf64_FuncDesc *)(addr))->fd_func)
  28 # define DL_FIXUP_BINDNOW_RELOC(l, reloc, value, new_value, st_value, lazy) \
  29  ({                                                             \
  30     Elf64_FuncDesc *opd = (Elf64_FuncDesc *) (value);           \
  31     opd->fd_func = (st_value);                                  \
  32     if ((new_value) != (uintptr_t) (st_value))                  \
  33      opd->fd_toc = ((Elf64_FuncDesc *)(new_value))->fd_toc;     \
  34   })
  35 #else
  36 # define DL_FIXUP_BINDNOW_ADDR_VALUE(addr) (addr)
  37 # define DL_FIXUP_BINDNOW_RELOC(l, reloc, value, new_value, st_value, lazy) \
  38   (*value) = st_value;
  39 #endif