linux-kernel - Re: UAPI headers including non-UAPI headers by accident?

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Message-ID: <CAKgNAkjLmBUayYjVOr6Stcbmcn=ENb3Uyt0dkFQCmn-Lxdn0xw@mail.gmail.com>
Date:	Thu, 18 Jun 2015 09:52:36 +0200
From:	"Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
To:	Andy Lutomirski <luto@...nel.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux API <linux-api@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>
Subject: Re: UAPI headers including non-UAPI headers by accident?

[CC += David]

On 2 June 2015 at 18:36, Andy Lutomirski <luto@...nel.org> wrote:
> include/uapi/linux/signal.h starts with:
>
> #ifndef _UAPI_LINUX_SIGNAL_H
> #define _UAPI_LINUX_SIGNAL_H
>
> #include <asm/signal.h>
> #include <asm/siginfo.h>
>
> This causes it to include <asm/signal.h>, which is not the same thing
> as <uapi/asm/signal.h>.  Changing that will break userspace use of
> this header, though, as the uapi/ won't get removed.
>
> What's the correct fix?  This is causing trouble with a UML build for me.

Perhaps David has some insight, since he architected the original UAPI split.

Cheers,

Michael
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