gdb/nbsd-nat.c

   1 /* Native-dependent code for NetBSD.
   2
   3    Copyright (C) 2006-2017 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 /* Return the name of a file that can be opened to get the symbols for
  25    the child process identified by PID.  */
  26
  27 char *
  28 nbsd_pid_to_exec_file (struct target_ops *self, int pid)
  29 {
  30   ssize_t len;
  31   static char buf[PATH_MAX];
  32   char name[PATH_MAX];
  33
  34   xsnprintf (name, PATH_MAX, "/proc/%d/exe", pid);
  35   len = readlink (name, buf, PATH_MAX - 1);
  36   if (len != -1)
  37     {
  38       buf[len] = '\0';
  39       return buf;
  40     }
  41
  42   return NULL;
  43 }