Add target_ops argument to to_pid_to_exec_file

2014-02-19  Tom Tromey  <tromey@redhat.com>

	* windows-nat.c (windows_pid_to_exec_file): Add 'self' argument.
	* target.h (struct target_ops) <to_pid_to_exec_file>: Add
	argument.
	(target_pid_to_exec_file): Add argument.
	* target.c (debug_to_pid_to_exec_file): Add argument.
	(update_current_target): Update.
	* nbsd-nat.h (nbsd_pid_to_exec_file): Add 'self' argument.
	* nbsd-nat.c (nbsd_pid_to_exec_file): Add 'self' argument.
	* linux-nat.c (linux_child_pid_to_exec_file): Add 'self' argument.
	(linux_handle_extended_wait): Update.
	* inf-child.c (inf_child_pid_to_exec_file): Add 'self' argument.
	* fbsd-nat.h (fbsd_pid_to_exec_file): Add 'self' argument.
	* fbsd-nat.c (fbsd_pid_to_exec_file): Add 'self' argument.
	* darwin-nat.c (darwin_pid_to_exec_file): Add 'self' argument.

gdb/nbsd-nat.c

@@ -25,7 +25,7 @@
    the child process identified by PID.  */
 
 char *
-nbsd_pid_to_exec_file (int pid)
+nbsd_pid_to_exec_file (struct target_ops *self, int pid)
 {
   size_t len = PATH_MAX;
   char *buf = xcalloc (len, sizeof (char));