kern/181497: [kernel] [patch] Add ASLR feature to kernel

[Olivier Cochard-Labbé]

On Tue, Feb 4, 2014 at 9:00 PM, Shawn Webb <lattera at gmail.com> wrote:

> The following reply was made to PR kern/181497; it has been noted by GNATS.
>
> From: Shawn Webb <lattera at gmail.com>
> To: bug-followup at FreeBSD.org,
>  steven at roothosts.com
> Cc:
> Subject: Re: kern/181497: [kernel] [patch] Add ASLR feature to kernel
> Date: Tue, 4 Feb 2014 14:57:44 -0500
>
>  --Apple-Mail=_70D08D01-527F-4575-806A-36757E957E5A
>  Content-Transfer-Encoding: quoted-printable
>  Content-Type: text/plain;
>         charset=us-ascii
>
>  I'm sorry, my patch actually wasn't right. It included other fixes I had =
>  in my branch for other features and didn't include some of the other =
>  ASLR bits. Attached is the right patch.
>
>
kernel compilation failed if configuration is "with PAX_ASLR options" and
"without COMPAT_FREEBSD32 options":

--- kern_pax.o ---
/src/sys/kern/kern_pax.c:531:9: error: no member named 'vm_aslr_delta_exec'
in 'struct vmspace'
    vm->vm_aslr_delta_exec = round_page(PAX_ASLR_DELTA(arc4random(),
PAX_ASLR_DELTA_EXEC_LSB, (pr != NULL) ? pr->pr_pax_aslr_exec_len :
pax_aslr_exec_len));
    ~~  ^
1 error generated.

What's is this "vm_aslr_delta_exec" ?