[PATCH 1/1] Fix memleak of the pid_to_exec_file target_ops method for some platforms

[Hui Zhu <hui_zhu@mentor.com>]

I said most of the pid_to_exec_file target_ops method for some platforms will
allocate memory for exec_file and add them to cleanup.
But some of them didn't do that.
So I make a patch to fix this memleak.

Thanks,
Hui

2014-03-17  Hui Zhu  <hui@codesourcery.com>

	* fbsd-nat.c (fbsd_pid_to_exec_file): Add make_cleanup.
	* nbsd-nat.c (nbsd_pid_to_exec_file): Ditto.

--- a/gdb/fbsd-nat.c
+++ b/gdb/fbsd-nat.c
@@ -43,6 +43,8 @@ fbsd_pid_to_exec_file (struct target_ops
    char *buf = xcalloc (len, sizeof (char));
    char *path;
  
+  make_cleanup (xfree, buf);
+
  #ifdef KERN_PROC_PATHNAME
    int mib[4];
  
--- a/gdb/nbsd-nat.c
+++ b/gdb/nbsd-nat.c
@@ -31,6 +31,8 @@ nbsd_pid_to_exec_file (struct target_ops
    char *buf = xcalloc (len, sizeof (char));
    char *path;
  
+  make_cleanup (xfree, buf);
+
    path = xstrprintf ("/proc/%d/exe", pid);
    if (readlink (path, buf, PATH_MAX - 1) == -1)
      {