From: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
To: openembedded-core@lists.openembedded.org
Subject: Re: pseudo: host user contamination
Date: Thu, 29 Mar 2018 14:04:00 +0200 [thread overview]
Message-ID: <lyvadfqea7.fsf@ensc-virt.intern.sigma-chemnitz.de> (raw)
In-Reply-To: <20180327161010.3e20edac@seebsdell> (Seebs's message of "Tue, 27 Mar 2018 16:10:10 -0500")
Seebs <seebs-59Mtl4G6ZbFeoWH0uzbU5w@public.gmane.org> writes:
> There are weird calling conventions out there. For instance, "pass
> floating point values in registers, but integers on stack", or "pass
> first N arguments in registers", and so on. I don't know if any of
> them are active in stuff Linux supports, but I'm aware that this is an
> area where you can get really strange behaviors.
__builtin_apply() should deal with it. If you are really paranoid, assume
a huge stack size (e.g. 1024). But accordingly syscall(2) man-page, there
are to be expected not more than 7 arguments for syscalls. So, define the
size for known architectures and a fallback of '7 * sizeof(uintmax_t)' or
so.
Enrico
next prev parent reply other threads:[~2018-03-29 12:04 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-23 15:33 pseudo: host user contamination Enrico Scholz
2018-03-23 15:43 ` Enrico Scholz
2018-03-23 16:05 ` Burton, Ross
2018-03-23 16:10 ` Enrico Scholz
2018-03-23 16:17 ` Burton, Ross
2018-03-23 16:28 ` Seebs
2018-03-23 16:30 ` Burton, Ross
2018-03-23 16:49 ` Seebs
2018-03-23 16:56 ` Burton, Ross
2018-03-23 17:23 ` Seebs
2018-03-23 23:47 ` Richard Purdie
2018-03-23 23:56 ` Seebs
2018-03-24 0:22 ` Enrico Scholz
2018-03-24 0:33 ` Andre McCurdy
2018-03-24 0:36 ` Seebs
2018-03-24 1:10 ` Andre McCurdy
2018-03-24 1:17 ` Seebs
2018-03-24 1:43 ` Andre McCurdy
2018-03-24 2:44 ` Seebs
2018-03-24 12:36 ` Richard Purdie
2018-03-24 15:12 ` Seebs
2018-03-24 17:10 ` Burton, Ross
2018-03-24 17:23 ` Seebs
2018-03-24 18:12 ` Andre McCurdy
2018-03-24 18:22 ` Seebs
2018-03-24 18:59 ` Andre McCurdy
2018-03-24 19:24 ` Seebs
2018-03-24 19:42 ` Andre McCurdy
2018-03-24 19:50 ` Seebs
2018-03-24 20:12 ` Victor Kamensky
2018-03-24 23:04 ` Burton, Ross
2018-03-25 0:09 ` Victor Kamensky
2018-03-25 2:43 ` Andre McCurdy
2018-03-25 5:37 ` Victor Kamensky
2018-03-25 7:05 ` Andre McCurdy
2018-03-26 18:49 ` Andreas Müller
2018-03-26 19:31 ` Seebs
2018-03-26 20:12 ` Andre McCurdy
2018-03-26 21:07 ` Seebs
2018-03-27 1:10 ` Andre McCurdy
2018-03-27 1:32 ` Seebs
2018-03-27 1:34 ` Andre McCurdy
2018-03-27 2:07 ` Seebs
2018-03-27 2:59 ` Andre McCurdy
2018-03-27 4:41 ` Seebs
2018-03-27 19:11 ` Andre McCurdy
2018-03-27 19:22 ` Seebs
2018-03-27 20:12 ` Andre McCurdy
2018-03-27 20:20 ` Seebs
2018-03-27 20:52 ` Andre McCurdy
2018-03-27 21:10 ` Seebs
2018-03-29 12:04 ` Enrico Scholz [this message]
2018-03-29 14:06 ` Seebs
2018-03-27 13:06 ` Enrico Scholz
2018-03-27 15:50 ` Seebs
2018-03-27 16:26 ` Enrico Scholz
2018-03-27 16:46 ` Seebs
2018-03-24 20:22 ` Joshua Watt
2018-03-24 21:01 ` Seebs
2018-03-24 20:27 ` Andre McCurdy
2018-03-27 14:42 ` Enrico Scholz
2018-03-27 15:55 ` Seebs
2018-03-27 16:35 ` Enrico Scholz
2018-03-27 16:40 ` Seebs
2018-03-27 19:20 ` Enrico Scholz
2018-03-27 19:24 ` Seebs
2018-03-27 20:06 ` Enrico Scholz
2018-03-23 16:06 ` Burton, Ross
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