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From: Jiri Slaby <jirislaby@kernel.org>
To: Masahiro Yamada <masahiroy@kernel.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Nicolas Schier <nicolas@fjasle.eu>,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>
Subject: arch/um's ssl.o [was: con3270.o] is built twice, leading to errors
Date: Wed, 19 Jul 2023 10:30:38 +0200	[thread overview]
Message-ID: <92f4dfe9-eb87-766b-271a-e57ada3a7dbd@kernel.org> (raw)
In-Reply-To: <7b663b86-4df0-c3df-18a7-e4f47f900be4@kernel.org>

On 14. 07. 23, 8:33, Jiri Slaby wrote:
> Hi,
> 
> if I create an s390 defconfig:
> mkdir /tmp/s390/
> make O=/tmp/s390/ ARCH=s390 CROSS_COMPILE=s390x-suse-linux- defconfig
> 
> And then if I try for a couple times:
> make O=/tmp/s390/ -j17 ARCH=s390 CROSS_COMPILE=s390x-suse-linux- 
> drivers/s390/char/con3270.o
> 
> Most of the time, I get:
> make[1]: Entering directory '/tmp/s390'
>    GEN     Makefile
>    CALL    /home/latest/linux/scripts/checksyscalls.sh
>    CC      drivers/s390/char/con3270.o
>    CC      drivers/s390/char/con3270.o
> 
> I.e. it is built twice.

Similarly, another tty driver, another arch (um):

$ make O=../a/arch/um/ -j17 ARCH=um arch/um/drivers/ssl.o V=2
   GEN     Makefile - due to target is PHONY
   CALL    scripts/checksyscalls.sh - due to target is PHONY
   CC      arch/um/drivers/ssl.o - due to: arch/um/drivers/ssl.c
   CC      arch/um/drivers/ssl.o - due to: arch/um/drivers/ssl.c

This leads often to corrupted arch/um/arch/um/drivers/.ssl.o.cmd.

But in this case, I see:
obj-$(CONFIG_SSL) += ssl.o

So is this has this a different root cause?

> Sometimes, I also get an error:
> fixdep: error opening file: drivers/s390/char/.con3270.o.d: No such file 
> or directory
> make[4]: *** [/home/latest/linux/scripts/Makefile.build:243: 
> drivers/s390/char/con3270.o] Error 2
> make[4]: *** Deleting file 'drivers/s390/char/con3270.o'
> make[3]: *** [/home/latest/linux/scripts/Makefile.build:477: drivers]
> 
> Obviously due to some race.
> 
> Any ideas what is going on?
> 
> thanks,

-- 
js
suse labs


  parent reply	other threads:[~2023-07-19  8:30 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-14  6:33 con3270.o is built twice, leading to errors Jiri Slaby
2023-07-14 20:01 ` Nicolas Schier
2023-07-15  5:04 ` Masahiro Yamada
2023-07-17  8:30   ` Jiri Slaby
2023-07-19  8:30 ` Jiri Slaby [this message]
2023-07-21 13:37   ` arch/um's ssl.o [was: con3270.o] " Masahiro Yamada

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