From: Michael Orlitzky <mjo@gentoo.org>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] New profile 17: How urgent is the rebuild of world technically?
Date: Sat, 2 Dec 2017 21:44:41 -0500 [thread overview]
Message-ID: <0cb1a823-ce29-3e6e-ceed-af8c7b19d10c@gentoo.org> (raw)
In-Reply-To: <CAC=wYCGBwmO5AQg5q7vDdjWKQefb9KYSeUEYY2dodF2mLrcWDA@mail.gmail.com>
On 12/02/2017 09:32 PM, Adam Carter wrote:
>
> Does having the hardened USE flag enabled = having a hardened toolchain?
If only it were that simple... what you really need to know is, did you
build everything on your system with PIE enabled?
* Some packages have "pie" USE flags, and it's only forced-on in the
hardened profiles. I think that flag may actually have been masked
in the default profiles?
* Even if you /built/ a hardened compiler, you can switch it off
with gcc-config.
* Your local flags in make.conf can disable some of that stuff, too.
If you were using a hardened *profile*, then chances are that you won't
need to rebuild (unless you switched to a non-hardened compiler on
purpose). Otherwise, I would play it safe and rebuild everything. The
newer GCC probably produces more efficient code anyway, and you will
preempt all of the inevitable problems that no one thought of and that
weren't mentioned in the news item.
next prev parent reply other threads:[~2017-12-03 2:44 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-03 2:15 [gentoo-user] New profile 17: How urgent is the rebuild of world technically? tuxic
2017-12-03 2:30 ` Michael Orlitzky
2017-12-03 2:32 ` Adam Carter
2017-12-03 2:44 ` Michael Orlitzky [this message]
2017-12-03 3:26 ` tuxic
2017-12-03 3:35 ` Heiko Baums
2017-12-03 3:45 ` tuxic
2017-12-03 4:15 ` Heiko Baums
2017-12-03 9:53 ` Peter Humphrey
2017-12-03 11:56 ` Heiko Baums
2017-12-03 12:55 ` Dale
2017-12-03 14:09 ` Spackman, Chris
2017-12-03 14:16 ` tuxic
2017-12-03 14:39 ` Heiko Baums
2017-12-03 15:25 ` Peter Humphrey
2017-12-03 15:57 ` Neil Bothwick
2017-12-03 14:36 ` Heiko Baums
2017-12-03 14:27 ` Heiko Baums
2017-12-04 1:08 ` Dale
2017-12-04 1:18 ` Heiko Baums
2017-12-04 1:48 ` Walter Dnes
2017-12-03 5:26 ` Adam Carter
2017-12-03 10:51 ` Neil Bothwick
2017-12-03 3:47 ` Heiko Baums
2017-12-06 23:59 ` Frank Steinmetzger
2017-12-07 8:08 ` Neil Bothwick
2017-12-04 17:48 ` Stefan G. Weichinger
2017-12-04 20:21 ` Michael Orlitzky
2017-12-05 9:16 ` Stefan G. Weichinger
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