From: Catalin Marinas <catalin.marinas@arm.com>
To: Amit Daniel Kachhap <amit.kachhap@arm.com>,
kbuild test robot <lkp@intel.com>
Cc: kbuild-all@lists.01.org, Kees Cook <keescook@chromium.org>,
Szabolcs Nagy <szabolcs.nagy@arm.com>,
Kristina Martsenko <kristina.martsenko@arm.com>,
Vincenzo Frascino <Vincenzo.Frascino@arm.com>,
linux-arm-kernel@lists.infradead.org, daniel.kiss@arm.com
Subject: Re: [arm64:for-next/kernel-ptrauth 16/18] aarch64-linux-objdump: warning: fs/squashfs/decompressor_multi.o: unsupported GNU_PROPERTY_TYPE (5) type: 0xc0000000
Date: Mon, 23 Mar 2020 11:48:39 +0000 [thread overview]
Message-ID: <20200323114837.GA4892@mbp> (raw)
In-Reply-To: <202003211202.2NuTbuJb%lkp@intel.com>
On Sat, Mar 21, 2020 at 12:28:06PM +0800, kbuild test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/kernel-ptrauth
> head: 3b446c7d27ddd06342901bb35211363f6944291a
> commit: 74afda4016a7437e6e425c3370e4b93b47be8ddf [16/18] arm64: compile the kernel with ptrauth return address signing
> config: arm64-randconfig-a001-20200321 (attached as .config)
> compiler: aarch64-linux-gcc (GCC) 9.2.0
> reproduce:
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> git checkout 74afda4016a7437e6e425c3370e4b93b47be8ddf
> # save the attached .config to linux build tree
> GCC_VERSION=9.2.0 make.cross ARCH=arm64
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> >> aarch64-linux-objdump: warning: fs/squashfs/decompressor_multi.o: unsupported GNU_PROPERTY_TYPE (5) type: 0xc0000000
> --
> >> aarch64-linux-objdump: warning: drivers/gpio/gpio-bt8xx.o: unsupported GNU_PROPERTY_TYPE (5) type: 0xc0000000
Just to make sure I understand the cause of this warning: gcc generates
a .note.gnu.property when PAC is enabled for the kernel but binutils
doesn't understand it. Is there a way to check for this via the Kconfig
options?
--
Catalin
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next prev parent reply other threads:[~2020-03-23 11:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-21 4:28 [arm64:for-next/kernel-ptrauth 16/18] aarch64-linux-objdump: warning: fs/squashfs/decompressor_multi.o: unsupported GNU_PROPERTY_TYPE (5) type: 0xc0000000 kbuild test robot
2020-03-23 11:48 ` Catalin Marinas [this message]
2020-03-23 17:04 ` Daniel Kiss
2020-03-23 17:06 ` Amit Kachhap
2020-03-24 16:15 ` Catalin Marinas
2020-03-24 16:32 ` Amit Kachhap
2020-03-24 17:00 ` Catalin Marinas
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