From: Masahiro Yamada <masahiroy@kernel.org>
To: Jiri Slaby <jirislaby@kernel.org>
Cc: 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: Re: arch/um's ssl.o [was: con3270.o] is built twice, leading to errors
Date: Fri, 21 Jul 2023 22:37:47 +0900 [thread overview]
Message-ID: <CAK7LNAQ1_vR+eaKzqg_0eWVhBzyvRsoLHZa=NJCc52z+1bVVAQ@mail.gmail.com> (raw)
In-Reply-To: <92f4dfe9-eb87-766b-271a-e57ada3a7dbd@kernel.org>
On Wed, Jul 19, 2023 at 5:30 PM Jiri Slaby <jirislaby@kernel.org> wrote:
>
> 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?
It is a similar symptom.
See arch/um/Makefile line 26
core-y += $(ARCH_DIR)/kernel/ \
$(ARCH_DIR)/drivers/ \
$(ARCH_DIR)/os-$(OS)/
I will send a patch.
>
> > 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
>
--
Best Regards
Masahiro Yamada
prev parent reply other threads:[~2023-07-21 13:38 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 ` arch/um's ssl.o [was: con3270.o] " Jiri Slaby
2023-07-21 13:37 ` Masahiro Yamada [this message]
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