sysdeps/sparc/dl-lookupcfg.h

   1 /* Configuration of lookup functions.  SPARC64 version.
   2    Copyright (C) 2023-2024 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 /* The type of the return value of fixup/profile_fixup.  */
  20 #define DL_FIXUP_VALUE_TYPE ElfW(Addr)
  21 /* Construct a value of type DL_FIXUP_VALUE_TYPE from a code address
  22    and a link map.  */
  23 #define DL_FIXUP_MAKE_VALUE(map, addr) (addr)
  24 /* Extract the code address from a value of type DL_FIXUP_MAKE_VALUE.
  25  */
  26 #define DL_FIXUP_VALUE_CODE_ADDR(value) (value)
  27 #define DL_FIXUP_VALUE_ADDR(value) (value)
  28 #define DL_FIXUP_ADDR_VALUE(addr) (addr)
  29 #define DL_FIXUP_BINDNOW_ADDR_VALUE(addr) (addr)
  30 /* For bindnow, _dl_audit_symbind will be responsible to setup the final value
  31    while for lazy binding _dl_fixup/_dl_profile_fixup will call the audit
  32    callbacks and tail cail elf_machine_fixup_plt.  */
  33 #ifdef __arch64__
  34 # define DL_SPARC_FIXUP(l, r, value, new_value)                              \
  35   sparc64_fixup_plt (l, r, value, new_value, (r)->r_addend, 0)
  36 #else
  37 # define DL_SPARC_FIXUP(l, r, value, new_value)                              \
  38   sparc_fixup_plt (r, value, new_value, 0, 1)
  39 #endif
  40 #define DL_FIXUP_BINDNOW_RELOC(l, reloc, value, new_value, st_value, lazy)   \
  41   ({                                                                         \
  42      if (lazy)                                                               \
  43        (*value) = st_value;                                                  \
  44      else                                                                    \
  45        {                                                                     \
  46          const PLTREL *__r = (reloc);                                        \
  47          DL_SPARC_FIXUP (l, __r, value, new_value);                          \
  48        }                                                                     \
  49   })