> On 23 Mar 2020, at 12:48, Catalin Marinas wrote: > > 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 >> >> 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. This is my understanding as well. > Is there a way to check for this via the Kconfig > options? Maybe a version check on binutils could help here. Cheers, Daniel > -- > Catalin IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel