linux-kernel - Re: [PATCH 3/3] powerpc: enable support for GCC plugins

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <25e3a510-1652-5be9-cc26-24d35f9ac95e@au1.ibm.com>
Date:   Fri, 27 Jan 2017 16:52:54 +1100
From:   Andrew Donnellan <andrew.donnellan@....ibm.com>
To:     pageexec@...email.hu, Kees Cook <keescook@...omium.org>
Cc:     "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "kernel-hardening@...ts.openwall.com" 
        <kernel-hardening@...ts.openwall.com>,
        Emese Revfy <re.emese@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-kbuild <linux-kbuild@...r.kernel.org>,
        Brad Spengler <spender@...ecurity.net>,
        Michal Marek <mmarek@...e.com>
Subject: Re: [PATCH 3/3] powerpc: enable support for GCC plugins

On 09/12/16 21:59, PaX Team wrote:
>>>> the specific problem addressed here can (and IMHO should) be solved in
>>>> another way: remove the inclusion of the offending headers in gcc-common.h
>>>> as neither tm.h nor c-common.h are needed by existing plugins. for background,
>>
>> We can't build without tm.h: http://pastebin.com/W0azfCr0
>
> you'll need to repeat the removal of dependent headers. based on a quick
> test here across gcc 4.5-6.2, if you remove rtl.h, tm_p.h, hard-reg-set.h
> and emit-rtl.h in addition to tm.h, the plugins should build fine.

OK, I finally have a chance to look at this series again.

basic-block.h includes tm.h, and I don't believe we can remove that. I'm 
not convinced there's a way around this.

-- 
Andrew Donnellan              OzLabs, ADL Canberra
andrew.donnellan@....ibm.com  IBM Australia Limited