From: Christoph Hellwig <hch@lst.de>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Arnd Bergmann <arnd@arndb.de>,
linux-kernel@vger.kernel.org,
Alexander Viro <viro@zeniv.linux.org.uk>,
Jeremy Kerr <jk@ozlabs.org>,
linux-fsdevel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org, Christoph Hellwig <hch@lst.de>,
"Eric W . Biederman" <ebiederm@xmission.com>
Subject: Re: [PATCH 4/8] binfmt_elf: open code copy_siginfo_to_user to kernelspace buffer
Date: Wed, 15 Apr 2020 08:19:48 +0200 [thread overview]
Message-ID: <20200415061948.GB32392@lst.de> (raw)
In-Reply-To: <87y2qxih94.fsf@mpe.ellerman.id.au>
On Wed, Apr 15, 2020 at 01:01:59PM +1000, Michael Ellerman wrote:
> > + to_compat_siginfo(csigdata, siginfo, compat_siginfo_flags()); \
> > + fill_note(note, "CORE", NT_SIGINFO, sizeof(*csigdata), csigdata); \
> > +} while (0)
>
> This doesn't build on ppc (cell_defconfig):
>
> ../fs/binfmt_elf.c: In function 'fill_note_info':
> ../fs/compat_binfmt_elf.c:44:39: error: implicit declaration of function 'compat_siginfo_flags'; did you mean 'to_compat_siginfo'? [-Werror=implicit-function-d
> eclaration]
> to_compat_siginfo(csigdata, siginfo, compat_siginfo_flags()); \
> ^~~~~~~~~~~~~~~~~~~~
> ../fs/binfmt_elf.c:1846:2: note: in expansion of macro 'fill_siginfo_note'
> fill_siginfo_note(&info->signote, &info->csigdata, siginfo);
> ^~~~~~~~~~~~~~~~~
> cc1: some warnings being treated as errors
> make[2]: *** [../scripts/Makefile.build:266: fs/compat_binfmt_elf.o] Error 1
>
>
> I guess the empty version from kernel/signal.c needs to move into a
> header somewhere.
Yes, it should. Odd that the buildbut hasn't complained yet so far..
next prev parent reply other threads:[~2020-04-15 6:23 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-14 7:01 remove set_fs calls from the exec and coredump code v2 Christoph Hellwig
2020-04-14 7:01 ` [PATCH 1/8] powerpc/spufs: simplify spufs core dumping Christoph Hellwig
2020-04-14 7:01 ` [PATCH 2/8] signal: clean up __copy_siginfo_to_user32 Christoph Hellwig
2020-04-17 21:08 ` Eric W. Biederman
2020-04-17 21:09 ` [PATCH 1/2] signal: Factor copy_siginfo_to_external32 from copy_siginfo_to_user32 Eric W. Biederman
2020-04-18 8:05 ` Christophe Leroy
2020-04-18 11:55 ` Eric W. Biederman
2020-04-19 8:13 ` Christoph Hellwig
2020-04-19 9:46 ` Christophe Leroy
2020-04-19 9:54 ` Christophe Leroy
2020-04-19 8:05 ` Christoph Hellwig
2020-04-17 21:09 ` [PATCH 2/2] signal: Remove the set_fs in binfmt_elf.c:fill_siginfo_note Eric W. Biederman
2020-04-19 8:03 ` [PATCH 2/8] signal: clean up __copy_siginfo_to_user32 Christoph Hellwig
2020-04-14 7:01 ` [PATCH 3/8] signal: replace __copy_siginfo_to_user32 with to_compat_siginfo Christoph Hellwig
2020-04-14 14:00 ` Arnd Bergmann
2020-04-14 7:01 ` [PATCH 4/8] binfmt_elf: open code copy_siginfo_to_user to kernelspace buffer Christoph Hellwig
2020-04-14 13:15 ` Arnd Bergmann
2020-04-15 7:45 ` Christoph Hellwig
2020-04-15 8:20 ` Arnd Bergmann
2020-04-17 13:27 ` Christoph Hellwig
2020-04-17 18:10 ` Eric W. Biederman
2020-04-17 20:06 ` Arnd Bergmann
2020-04-15 3:01 ` Michael Ellerman
2020-04-15 6:19 ` Christoph Hellwig [this message]
2020-04-14 7:01 ` [PATCH 5/8] binfmt_elf: remove the set_fs(KERNEL_DS) in elf_core_dump Christoph Hellwig
2020-04-14 7:01 ` [PATCH 6/8] binfmt_elf_fdpic: remove the set_fs(KERNEL_DS) in elf_fdpic_core_dump Christoph Hellwig
2020-04-14 7:01 ` [PATCH 7/8] exec: simplify the copy_strings_kernel calling convention Christoph Hellwig
2020-04-14 7:01 ` [PATCH 8/8] exec: open code copy_string_kernel Christoph Hellwig
2020-04-18 8:15 ` Christophe Leroy
2020-04-19 8:06 ` Christoph Hellwig
2020-04-19 9:44 ` Christophe Leroy
2020-04-17 22:41 ` remove set_fs calls from the exec and coredump code v2 Eric W. Biederman
2020-04-19 8:19 ` Christoph Hellwig
2020-04-19 11:50 ` Eric W. Biederman
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