gdb/nbsd-nat.c

   1 /* Native-dependent code for NetBSD.
   2
   3    Copyright (C) 2006-2012 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 <sys/param.h>
  23
  24 #include "nbsd-nat.h"
  25
  26 /* Return the name of a file that can be opened to get the symbols for
  27    the child process identified by PID.  */
  28
  29 char *
  30 nbsd_pid_to_exec_file (int pid)
  31 {
  32   size_t len = MAXPATHLEN;
  33   char *buf = xcalloc (len, sizeof (char));
  34   char *path;
  35
  36   path = xstrprintf ("/proc/%d/exe", pid);
  37   if (readlink (path, buf, MAXPATHLEN - 1) == -1)
  38     {
  39       xfree (buf);
  40       buf = NULL;
  41     }
  42
  43   xfree (path);
  44   return buf;
  45 }