Hi Vincent,
On Fri, Feb 19, 2016 at 12:31:17AM +0100, Vincent Stehlé wrote:
> Compile hyp-stub explicitly for arm v7-a. This fixes the following build
> errors:
>
> arch/arm/kernel/hyp-stub.S: Assembler messages:
> arch/arm/kernel/hyp-stub.S:168: Error: selected processor does not support
> `ubfx r7,r7,#28,#4' in ARM mode
> arch/arm/kernel/hyp-stub.S:176: Error: selected processor does not support
> `isb' in ARM mode
>
> Signed-off-by: Vincent Stehlé
> Cc: Jean-Philippe Brucker
> Cc: Marc Zyngier
> Cc: Russell King
> ---
>
>
> Hi,
>
> This can be seen with linux next-20160218 and arm e.g. allmodconfig.
Thanks for doing this. I just posted my fix to the patch system, before
seeing yours (it also requires change in boot/compressed/Makefile -
hyp-stub is built twice). See the previous discussion about this issue
here: http://thread.gmane.org/gmane.linux.ports.arm.kernel/479256
Thanks,
Jean-Philippe
>
> Best regards,
>
> V.
>
>
> arch/arm/kernel/Makefile | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
> index 2c5f160..15684c5 100644
> --- a/arch/arm/kernel/Makefile
> +++ b/arch/arm/kernel/Makefile
> @@ -88,6 +88,8 @@ obj-$(CONFIG_DEBUG_LL) += debug.o
> obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
>
> obj-$(CONFIG_ARM_VIRT_EXT) += hyp-stub.o
> +AFLAGS_hyp-stub.o:=-Wa,-march=armv7-a
> +
> ifeq ($(CONFIG_ARM_PSCI),y)
> obj-$(CONFIG_SMP)+= psci_smp.o
> endif
> --
> 2.7.0
>
>
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