gdb/nbsd-nat.c

   1 /* Native-dependent code for NetBSD.
   2
   3    Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011
   4    Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #include "defs.h"
  22
  23 #include <sys/param.h>
  24
  25 #include "nbsd-nat.h"
  26
  27 /* Return the name of a file that can be opened to get the symbols for
  28    the child process identified by PID.  */
  29
  30 char *
  31 nbsd_pid_to_exec_file (int pid)
  32 {
  33   size_t len = MAXPATHLEN;
  34   char *buf = xcalloc (len, sizeof (char));
  35   char *path;
  36
  37   path = xstrprintf ("/proc/%d/exe", pid);
  38   if (readlink (path, buf, MAXPATHLEN) == -1)
  39     {
  40       xfree (buf);
  41       buf = NULL;
  42     }
  43
  44   xfree (path);
  45   return buf;
  46 }