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Message-ID: <CAGXu5jLNpccwENe7c=uPeqFV+5ZFe+xOxS5djffPuEuCEw8gHQ@mail.gmail.com>
Date: Wed, 9 Dec 2015 11:35:11 -0800
From: Kees Cook <keescook@...omium.org>
To: "H. Peter Anvin" <hpa@...or.com>
Cc: PaX Team <pageexec@...email.hu>, LKML <linux-kernel@...r.kernel.org>,
Andy Lutomirski <luto@...capital.net>, Michael Ellerman <mpe@...erman.id.au>,
Mathias Krause <minipli@...glemail.com>, Ingo Molnar <mingo@...hat.com>,
Thomas Gleixner <tglx@...utronix.de>, "x86@...nel.org" <x86@...nel.org>, Arnd Bergmann <arnd@...db.de>,
Emese Revfy <re.emese@...il.com>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
linux-arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH v2 2/4] introduce post-init read-only memory
On Mon, Nov 30, 2015 at 2:24 PM, H. Peter Anvin <hpa@...or.com> wrote:
> On 11/25/15 16:15, PaX Team wrote:
>> On 25 Nov 2015 at 15:31, Kees Cook wrote:
>>
>>> diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
>>> index c4bd0e2c173c..772c784ba763 100644
>>> --- a/include/asm-generic/vmlinux.lds.h
>>> +++ b/include/asm-generic/vmlinux.lds.h
>>> @@ -256,6 +256,7 @@
>>> .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
>>> VMLINUX_SYMBOL(__start_rodata) = .; \
>>> *(.rodata) *(.rodata.*) \
>>> + *(.data..ro_after_init) /* Read only after init */ \
>> ^^^^^^^^^^^
>> looks like it's tabs vs. spaces...
Not sure what caused that, but I see it as tabs in my tree.
> One more thing... double dots I think has special meanings to gcc, so it
> might be better to avoid.
Hrm, I could find no information about this, so I've left it as-is.
-Kees
--
Kees Cook
Chrome OS & Brillo Security
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