granicus.if.org Git - strace/blob - upoke.c

   1 /*
   2  * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
   3  * Copyright (c) 2016-2019 The strace developers.
   4  * All rights reserved.
   5  *
   6  * SPDX-License-Identifier: LGPL-2.1-or-later
   7  */
   8
   9 #include "defs.h"
  10 #include "ptrace.h"
  11 #include "ptrace_pokeuser.c"
  12
  13 int
  14 upoke(struct tcb *tcp, unsigned long off, kernel_ulong_t val)
  15 {
  16         if (ptrace_pokeuser(tcp->pid, off, val) < 0) {
  17                 if (errno != ESRCH)
  18                         perror_func_msg("PTRACE_POKEUSER pid:%d @%#lx)",
  19                                         tcp->pid, off);
  20                 return -1;
  21         }
  22         return 0;
  23 }