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From: Julien Grall <julien@xen.org>
To: Jan Beulich <jbeulich@suse.com>,
	Stefano Stabellini <sstabellini@kernel.org>
Cc: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
	"Andrew Cooper" <andrew.cooper3@citrix.com>,
	"Wei Liu" <wl@xen.org>, "Roger Pau Monné" <roger.pau@citrix.com>,
	"George Dunlap" <George.Dunlap@eu.citrix.com>
Subject: Re: Ping: [PATCH 1/9] build: use if_changed more consistently (and correctly) for prelink*.o
Date: Tue, 22 Sep 2020 10:24:12 +0100	[thread overview]
Message-ID: <0a0ab7a6-e448-3ffe-3818-4b97edbffb72@xen.org> (raw)
In-Reply-To: <f6de6cc3-7bde-6f99-1525-cc046a136a19@suse.com>

Hi Jan,

On 22/09/2020 09:28, Jan Beulich wrote:
> On 21.09.2020 13:39, Julien Grall wrote:
>> On 21/09/2020 11:17, Jan Beulich wrote:
>>> On 14.09.2020 12:15, Jan Beulich wrote:
>>>> Switch to $(call if_changed,ld) where possible; presumably not doing so
>>>> in e321576f4047 ("xen/build: start using if_changed") right away was an
>>>> oversight, as it did for Arm in (just) one case. It failed to add
>>>> prelink.o to $(targets), though, causing - judging from the observed
>>>> behavior on x86 - undue rebuilds of the final binary (because of
>>>> prelink.o getting rebuild for $(cmd_prelink.o) being empty, in turn
>>>> because of .prelink.o.cmd not getting read) during "make install-xen".
>>>>
>>>> Signed-off-by: Jan Beulich <jbeulich@suse.com>
>>>> ---
>>>>    xen/arch/arm/Makefile |  4 +++-
>>>>    xen/arch/x86/Makefile | 18 ++++++++++--------
>>>>    2 files changed, 13 insertions(+), 9 deletions(-)
>>>
>>> May I ask for an Arm-side ack (or otherwise) here, please?
>>
>> Acked-by: Julien Grall <jgrall@amazon.com>
> 
> Thanks. On the Arm side this is actually addressing a (minor) bug,

Just to confirm, the bug is: Xen will be rebuilt when it is not 
necessary, right?

Cheers,

-- 
Julien Grall


  reply	other threads:[~2020-09-22  9:24 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-14 10:12 [PATCH 0/9] xen: beginnings of moving library-like code into an archive Jan Beulich
2020-09-14 10:15 ` [PATCH 1/9] build: use if_changed more consistently (and correctly) for prelink*.o Jan Beulich
2020-09-15 11:56   ` Roger Pau Monné
2020-09-15 12:26     ` Jan Beulich
2020-09-15 13:46       ` Roger Pau Monné
2020-09-15 15:14         ` Jan Beulich
2020-09-21 10:17   ` Ping: " Jan Beulich
2020-09-21 11:39     ` Julien Grall
2020-09-22  8:28       ` Jan Beulich
2020-09-22  9:24         ` Julien Grall [this message]
2020-09-22 10:55           ` Jan Beulich
2020-09-22 11:47             ` Julien Grall
2020-09-22 17:40               ` Stefano Stabellini
2020-09-14 10:16 ` [PATCH 2/9] lib: split _ctype[] into its own object, under lib/ Jan Beulich
2020-09-14 10:16 ` [PATCH 3/9] lib: collect library files in an archive Jan Beulich
2020-09-14 10:16 ` [PATCH 4/9] lib: move list sorting code Jan Beulich
2020-09-14 10:17 ` [PATCH 5/9] lib: move parse_size_and_unit() Jan Beulich
2020-09-22 19:41   ` Andrew Cooper
2020-09-24  7:04     ` Jan Beulich
2020-09-14 10:17 ` [PATCH 6/9] lib: move init_constructors() Jan Beulich
2020-09-14 10:18 ` [PATCH 7/9] lib: move rbtree code Jan Beulich
2020-09-14 10:18 ` [PATCH 8/9] lib: move bsearch code Jan Beulich
2020-09-22 19:34   ` Andrew Cooper
2020-09-24  7:09     ` Jan Beulich
2020-09-14 10:18 ` [PATCH 9/9] lib: move sort code Jan Beulich

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