1  /*
       2   * Copyright (c) 2018-2021 The strace developers.
       3   * All rights reserved.
       4   *
       5   * SPDX-License-Identifier: LGPL-2.1-or-later
       6   */
       7  
       8  static long
       9  ptrace_pokeuser(int pid, unsigned long off, kernel_ulong_t val)
      10  {
      11  	/*
      12  	 * As PTRACE_POKEUSER is crippled on x32 by design from the very first
      13  	 * linux kernel commit v3.4-rc1~33^2~2 when it was introduced,
      14  	 * workaround this by using the raw x86_64 syscall instead.
      15  	 */
      16  	return syscall(101, PTRACE_POKEUSER, pid, off, val);
      17  }