Hi, On 4/28/21 2:41 AM, quanyang.wang wrote: > Hi Michal, > > On 4/27/21 9:12 PM, Michal Simek wrote: >> Hi, >> >> On 4/23/21 6:26 AM, quanyang.w...@windriver.com wrote: >>> From: Quanyang Wang <quanyang.w...@windriver.com> >>> >>> When CONFIG_CPU_32v6 is enabled and arm gcc isn't configured with the >>> option "--with-arch=armv7-a", there will be a build error message as >>> below: >>> >>> arch/arm/mach-zynq/suspend.S:68: Error: selected processor does not support >>> `dsb sy' in ARM mode >>> arch/arm/mach-zynq/headsmp.S:13: Error: selected processor does not support >>> `setend be' in ARM mode >>> >>> This is because in arch/arm/Makefile, arch-$(CONFIG_CPU_32v6) will >>> override arch-$(CONFIG_CPU_32v7), and if the arm gcc doesn't contain >>> "--with-arch=armv7-a" feature, gcc can only handle armv6 instructions and >>> armv7 instructions in suspend.S and headsmp.S can't be recognized. >>> >>> Let's add "-march=armv7-a" to AFLAGS explicitly to avoid this build >>> error. >>> >>> Reported-by: kernel test robot <l...@intel.com> >>> Signed-off-by: Quanyang Wang <quanyang.w...@windriver.com> >>> --- >>> arch/arm/mach-zynq/Makefile | 2 ++ >>> 1 file changed, 2 insertions(+) >>> >>> diff --git a/arch/arm/mach-zynq/Makefile b/arch/arm/mach-zynq/Makefile >>> index dbb75be53deb..9b3e6a4140a2 100644 >>> --- a/arch/arm/mach-zynq/Makefile >>> +++ b/arch/arm/mach-zynq/Makefile >>> @@ -10,3 +10,5 @@ obj-$(CONFIG_SMP) += headsmp.o platsmp.o >>> ORIG_AFLAGS := $(KBUILD_AFLAGS) >>> KBUILD_AFLAGS = $(subst -march=armv6k,,$(ORIG_AFLAGS)) >>> obj-$(CONFIG_SUSPEND) += suspend.o >>> +AFLAGS_suspend.o +=-Wa,-march=armv7-a >>> +AFLAGS_headsmp.o +=-Wa,-march=armv7-a >>> >> Acked-by: Michal Simek <michal.si...@xilinx.com> >> >> Can you please also send it to upstream that I will take it via my tree? > > Do you mean mainline or git-...@xilinx.com?
upstream - linux-arm-kernel <linux-arm-ker...@lists.infradead.org> and lkml. Thanks, Michal
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#9822): https://lists.yoctoproject.org/g/linux-yocto/message/9822 Mute This Topic: https://lists.yoctoproject.org/mt/82303755/21656 Group Owner: linux-yocto+ow...@lists.yoctoproject.org Unsubscribe: https://lists.yoctoproject.org/g/linux-yocto/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
