gdb/nbsd-nat.c

   1 /* Native-dependent code for NetBSD.
   2
   3    Copyright (C) 2006-2020 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21
  22 #include "nbsd-nat.h"
  23
  24 #include <sys/types.h>
  25 #include <sys/ptrace.h>
  26 #include <sys/sysctl.h>
  27
  28 /* Return the name of a file that can be opened to get the symbols for
  29    the child process identified by PID.  */
  30
  31 char *
  32 nbsd_nat_target::pid_to_exec_file (int pid)
  33 {
  34   static char buf[PATH_MAX];
  35   size_t buflen;
  36   int mib[4] = {CTL_KERN, KERN_PROC_ARGS, pid, KERN_PROC_PATHNAME};
  37   buflen = sizeof (buf);
  38   if (sysctl (mib, ARRAY_SIZE (mib), buf, &buflen, NULL, 0))
  39     return NULL;
  40   return buf;
  41 }