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From: Ian Jackson <Ian.Jackson@eu.citrix.com>
To: Wei Chen <wei.chen@linaro.org>
Cc: sstabellini@kernel.org, wei.liu2@citrix.com,
	steve.capper@arm.com, andrew.cooper3@citrix.com,
	xen-devel@lists.xen.org, julien.grall@arm.com
Subject: Re: [RFC v2] xen/arm: build: add missed dependency for head.S [and 1 more messages]
Date: Tue, 7 Jun 2016 17:01:35 +0100	[thread overview]
Message-ID: <22358.61407.418451.98819@mariner.uk.xensource.com> (raw)
In-Reply-To: <20160607043443.3111-1-Wei.Chen@linaro.org>, <22358.39936.692242.613124@mariner.uk.xensource.com>

Wei Chen writes ("[RFC v2] xen/arm: build: add missed dependency for head.S"):
> In current Xen build rules, the build system will only check the
> dependencies in current folder and obj-y generated dependencies
> in other folder.
> 
> But Makefile may add some objects to ALL_OBJS. These objects may
> be not in the same folder as Makefile. Use arch/arm/Makefile as
> an example:
>     ALL_OBJS := $(TARGET_SUBARCH)/head.o

Thanks for the v2.

But I think I actually somewhat prefer the v1 approach, for these
reasons:

On 03/06/16 11:07, Wei Chen wrote:
> In my mind, the better way to fix this bug is converting the DEPS from
> ALL_OBJS. But I am afraid of the impact. I am not sure whether there
> are some dependencies are not generated from obj files.
> 
Ian Jackson writes ("Re: [RFC] xen/arm: build: add missed dependency for head.S"):
> I do like this idea but I have the same worry.  It might be possible
> to dump ALL_OBJS out somehow and check this, but it might be
> arch-dependent.
> 
> Wei Chen's patch is IMO a straightforward fix.

I won't NAK the v2 but I think if Wei Chen is still happy for us to do
so, we should commit the v1.

Ian.

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  parent reply	other threads:[~2016-06-07 16:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-03 10:07 [RFC] xen/arm: build: add missed dependency for head.S Wei Chen
2016-06-06 17:08 ` Julien Grall
2016-06-07 10:03   ` Ian Jackson
2016-06-07  4:34     ` [RFC v2] " Wei Chen
2016-06-07 13:18       ` Konrad Rzeszutek Wilk
2016-06-08  3:10         ` Wei Chen
2016-06-07 16:01       ` Ian Jackson [this message]
2016-06-07 16:24         ` [RFC v2] xen/arm: build: add missed dependency for head.S [and 1 more messages] Wei Liu
2016-06-08  3:14           ` Wei Chen
2016-06-08  8:09             ` Wei Liu
2016-06-07 10:07     ` [RFC] xen/arm: build: add missed dependency for head.S Julien Grall

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