From: Masami Hiramatsu <mhiramat@kernel•org>
To: Peter Oberparleiter <oberpar@linux•ibm.com>
Cc: Stephen Rothwell <sfr@canb•auug.org.au>,
"Steven Rostedt (VMware)" <rostedt@goodmis•org>,
Linux-Next Mailing List <linux-next@vger•kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
arnd@arndb•de
Subject: Re: linux-next: build warnings from the build of Linus' tree
Date: Sat, 8 Sep 2018 12:57:49 +0900 [thread overview]
Message-ID: <20180908125749.9c903e507a33046d5586e841@kernel.org> (raw)
In-Reply-To: <ebad9c9d-a7d0-44cc-f000-bf5e500fcd24@linux.ibm.com>
On Fri, 7 Sep 2018 14:50:59 +0200
Peter Oberparleiter <oberpar@linux•ibm.com> wrote:
> On 06.09.2018 18:42, Masami Hiramatsu wrote:
> > Peter Oberparleiter <oberpar@linux•ibm.com> wrote:
> >> I've attached a quick fix that should address both problems. I'd
> >> appreciate if this patch could get some testing before I post proper fix
> >> patches.
> >
> > Hmm, I'm still not able to reproduce it on powerpc cross build even with
> > CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y ... So, sorry I couldn't test this patch.
>
> Maybe this is related to the compiler/binutils versions used. I'm using
> Fedora 28's gcc-powerpc64 and binutils-powerpc64 packages:
>
> powerpc64-linux-gnu-gcc (GCC) 7.1.1 20170622 (Red Hat Cross 7.1.1-3)
> GNU ld version 2.29.1-4.fc28
>
> For reference I'm also attaching the config that I used to reproduce the
> problem on kernel v4.18.
>
> >> diff --git a/arch/arm/kernel/vmlinux.lds.h b/arch/arm/kernel/vmlinux.lds.h
> >> index ae5fdff18406..2ca33277a28b 100644
> >> --- a/arch/arm/kernel/vmlinux.lds.h
> >> +++ b/arch/arm/kernel/vmlinux.lds.h
> >> @@ -48,6 +48,7 @@
> >>
> >> #define ARM_DISCARD \
> >> *(.ARM.exidx.exit.text) \
> >> + *(.ARM.exidx.text.exit) \
> >
> > BTW, why would we need this?
>
> That's necessary to fix one of the two ARM linker failures reported via
> https://lkml.org/lkml/2018/8/24/345
>
> >>> `.text.exit' referenced in section `.ARM.exidx.text.exit' of
> >>> kernel/trace/trace_clock.o: defined in discarded section `.text.exit'
> >>> of kernel/trace/trace_clock.o
>
> Section ".ARM.exidx.text.exit" refers to ".text.exit" which was
> discarded. With the change above, the extraneous section
> ".ARM.exidx.text.exit" is also discarded, resolving the linker failure.
OK, so your patch fixes following issue too?
https://patchwork.kernel.org/patch/10584685/
In that case, we should drop above patch.
Thank you,
--
Masami Hiramatsu <mhiramat@kernel•org>
next prev parent reply other threads:[~2018-09-08 3:57 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-24 3:32 linux-next: build warnings from the build of Linus' tree Stephen Rothwell
2018-08-24 8:20 ` Masami Hiramatsu
2018-08-24 11:47 ` Masami Hiramatsu
2018-08-24 12:42 ` Stephen Rothwell
2018-08-25 1:51 ` Masami Hiramatsu
2018-08-26 8:10 ` Masami Hiramatsu
2018-08-27 21:23 ` Stephen Rothwell
2018-08-28 0:43 ` Masami Hiramatsu
2018-09-06 10:49 ` Peter Oberparleiter
2018-09-06 16:42 ` Masami Hiramatsu
2018-09-07 12:50 ` Peter Oberparleiter
2018-09-08 3:57 ` Masami Hiramatsu [this message]
2018-09-10 13:27 ` Peter Oberparleiter
2018-09-11 11:49 ` Masami Hiramatsu
2018-09-11 14:10 ` Masami Hiramatsu
2018-09-06 22:14 ` Stephen Rothwell
2018-09-07 3:34 ` Stephen Rothwell
2018-10-11 0:48 ` Stephen Rothwell
2018-10-11 7:44 ` Peter Oberparleiter
2018-10-11 9:58 ` Stephen Rothwell
2018-10-11 10:37 ` Greg KH
2018-10-11 11:09 ` Peter Oberparleiter
2018-10-11 13:54 ` Arnd Bergmann
2018-10-11 22:12 ` [GIT PULL] A couple of warning fixes Stephen Rothwell
2018-10-12 10:51 ` Greg KH
2018-08-24 12:46 ` linux-next: build warnings from the build of Linus' tree Arnd Bergmann
2018-08-25 18:53 ` Masami Hiramatsu
2018-08-25 19:53 ` Arnd Bergmann
2018-09-01 9:50 ` Masami Hiramatsu
2018-09-01 12:38 ` [PATCH] ARM: linker script: GCOV kernel may refers data in __exit Masami Hiramatsu
2018-09-11 14:12 ` Masami Hiramatsu
2018-08-29 2:11 ` linux-next: build warnings from the build of Linus' tree Greentime Hu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180908125749.9c903e507a33046d5586e841@kernel.org \
--to=mhiramat@kernel$(echo .)org \
--cc=arnd@arndb$(echo .)de \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=linux-next@vger$(echo .)kernel.org \
--cc=oberpar@linux$(echo .)ibm.com \
--cc=rostedt@goodmis$(echo .)org \
--cc=sfr@canb$(echo .)auug.org.au \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox