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From: David Laight <David.Laight@ACULAB.COM>
To: "'alexs@kernel.org'" <alexs@kernel.org>, Eric Biederman
	<ebiederm@xmission.com>, Kees Cook <keescook@chromium.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>, "linux-kernel@vger.kernel.org"
	<linux-kernel@vger.kernel.org>
CC: Alex Shi <alexsshi@tencent.com>, "curlinhuang@tencent.com"
	<curlinhuang@tencent.com>
Subject: RE: [PATCH] execve: argument list space enlargement
Thread-Topic: [PATCH] execve: argument list space enlargement
Thread-Index: AQHaPkWNtOnoU7TWREOKrIllLweKE7DLHuZw
Date: Fri, 5 Jan 2024 12:02:08 +0000
Message-ID: <1834358b1a8642f9b46a209bad035474@AcuMS.aculab.com>
References: <20240103130722.1551670-1-alexs@kernel.org>
In-Reply-To: <20240103130722.1551670-1-alexs@kernel.org>
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From: alexs@kernel.org
> Sent: 03 January 2024 13:07
>=20
> From: Alex Shi <alexsshi@tencent.com>
>=20
> Wechat using too long gcc parameters, then get a strace complain:
>   execve(...) =3D -1 E2BIG (Argument list too long)
> Have to increase the parameter space for this, stack has enough
> space for this enlargement.

They should fix their build so that it doesn't explode.
It'll probably speed up the compiles as well since the
very long argv[] almost certainly comes from a lot of -I dir
options and they slow down the compile.

if they are -Dvar[=3Dval] then '-include file' can be used instead.

=09David

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