linux-kernel - Re: -rt doesn't compile for UML

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Message-ID: <20071128131518.GA3193@elte.hu>
Date:	Wed, 28 Nov 2007 14:15:18 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	jdike@...toit.com, user-mode-linux-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: Re: -rt doesn't compile for UML


* Miklos Szeredi <miklos@...redi.hu> wrote:

> > so there's no forced need to use -rt.
> 
> Ah, forgotten about that.
> 
> Unfortunately the latency tracer patch doesn't compile either:
> 
>   CC      kernel/latency_trace.o
> kernel/latency_trace.c:28:21: error: asm/rtc.h: No such file or directory
> kernel/latency_trace.c:63:3: error: #error Implement cycles_to_usecs.
> kernel/latency_trace.c: In function ???____trace???:
> kernel/latency_trace.c:658: error: implicit declaration of function ???irqs_disabled_flags???
> make[1]: *** [kernel/latency_trace.o] Error 1

hm, just fill those functions in - should be fairly trivial and we can 
carry those patches in -rt. (I'd suggest to create an empty asm-um/rtc.h 
stub as well, for consistency.)

	Ingo
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