sysdeps/aarch64/dl-audit-check.h

   1 /* rtld-audit version check.  AArch64 version.
   2    Copyright (C) 2022-2023 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 static inline bool
  20 _dl_audit_check_version (unsigned int lav)
  21 {
  22   /* Audit version 1 do not save x8 or NEON registers, which required
  23      changing La_aarch64_regs and La_aarch64_retval layout (BZ#26643).  The
  24      missing indirect result save/restore makes _dl_runtime_profile
  25      potentially trigger undefined behavior if the function returns a large
  26      struct (even when PLT trace is not requested).  */
  27   return lav == LAV_CURRENT;
  28 }