gnu/dist/gdb6/gdb/nbsd-nat.c

   1 /* NetBSD-specific methods for using the /proc file system.
   2    Copyright 2006 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include <sys/param.h>
  22
  23 #include "defs.h"
  24 #include "nbsd-nat.h"
  25
  26 char *
  27 nbsd_pid_to_exec_file (int pid)
  28 {
  29   size_t len = MAXPATHLEN;
  30   char *buf = xcalloc (len, sizeof (char));
  31   char *path;
  32
  33   path = xstrprintf ("/proc/%d/exe", pid);
  34   if (readlink (path, buf, MAXPATHLEN) == -1)
  35     {
  36       xfree (buf);
  37       buf = NULL;
  38     }
  39
  40   xfree (path);
  41   return buf;
  42 }