[PATCH 2/3] Replace remaining cleanups in fbsd-nat.c.

[Simon Marchi]

Hi John,

> @@ -84,20 +92,17 @@ fbsd_find_memory_regions (struct target_ops *self,
>  			  find_memory_region_ftype func, void *obfd)
>  {
>    pid_t pid = ptid_get_pid (inferior_ptid);
> -  struct kinfo_vmentry *vmentl, *kve;
> +  struct kinfo_vmentry *kve;
>    uint64_t size;
> -  struct cleanup *cleanup;
>    int i, nitems;
> 
> -  vmentl = kinfo_getvmmap (pid, &nitems);
> +  std::unique_ptr<struct kinfo_vmentry, free_deleter<struct 
> kinfo_vmentry>>
> +    vmentl (kinfo_getvmmap (pid, &nitems));

Doesn't this essentially do the same thing as gdb::unique_xmalloc_ptr, 
since xfree calls free?

> @@ -392,7 +392,7 @@ fbsd_xfer_partial (struct target_ops *ops, enum
> target_object object,
>  #endif
>      case TARGET_OBJECT_AUXV:
>        {
> -	struct cleanup *cleanup = make_cleanup (null_cleanup, NULL);
> +	gdb::unique_xmalloc_ptr<unsigned char> buf_storage(nullptr);

You don't need to initialize explicitly to nullptr, that's the default 
value.  But if you still want to, then add a space before parenthesis 
:).

Otherwise, gdb::byte_vector with a .resize() would probably be 
appropriate to use here.

Thanks,

Simon