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From: Peter Zijlstra <peterz@infradead.org>
To: youling 257 <youling257@gmail.com>
Cc: viro@zeniv.linux.org.uk, jpoimboe@redhat.com,
	linux-kernel@vger.kernel.org
Subject: Re: Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Date: Thu, 9 Apr 2020 09:38:07 +0200	[thread overview]
Message-ID: <20200409073807.GA2483@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <CAOzgRdYkJMiQM9M-UHv5Z-6CLzaV0P8YTK5Ft-CmT5-JqCnYSA@mail.gmail.com>

On Thu, Apr 09, 2020 at 10:00:53AM +0800, youling 257 wrote:
> d937a6dfc9428f470c3ce4d459c390944ddef538 caused 64bit kernel build
> failed on 32bit userspace.
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d937a6dfc9428f470c3ce4d459c390944ddef538
> 
> 2020-04-08 16:13 GMT+08:00, youling 257 <youling257@gmail.com>:
> > after this merge branch, build 64bit kernel failed on 32bit userspace.
> >
> >
> >   CC       tools/objtool/builtin-check.o
> >   CC       tools/objtool/builtin-orc.o
> > In file included from check.h:10,
> >                  from builtin-check.c:18:
> > elf.h: In function ‘sec_offset_hash’:
> > elf.h:102:14: error: right shift count >= width of type
> > [-Werror=shift-count-overflow]
> >   102 |  oh = offset >> 32;
> >       |              ^~

Oh right; I figured it wouldn't matter since we don't do objtool for
32bit kernels, but I suppose you're cross building a 64bit kernel on a
32bit host or something daft like that?

I'll go fix it.

  reply	other threads:[~2020-04-09  7:38 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAOzgRdbWsKY7mXgiTx3um_gdJvgPN1O2p1vxmWv9eApQAy9UzQ@mail.gmail.com>
2020-04-09  2:00 ` youling 257
2020-04-09  7:38   ` Peter Zijlstra [this message]
2020-04-11 17:30     ` youling 257
2020-04-20  5:37       ` youling 257

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