From: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
To: kvmarm@lists.linux.dev
Cc: Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>
Subject: Re: [PATCH] KVM: arm64: nvhe: Fix build failure with gcc
Date: Tue, 10 Jun 2025 20:47:01 +0530 [thread overview]
Message-ID: <yq5a4iwnlj82.fsf@kernel.org> (raw)
In-Reply-To: <20250610151132.1758206-1-aneesh.kumar@kernel.org>
"Aneesh Kumar K.V (Arm)" <aneesh.kumar@kernel.org> writes:
> Address a build failure encountered with aarch64-linux-gnu-gcc version
> 13.3.0 (Ubuntu 13.3.0-6ubuntu2~24.04)
>
> /usr/bin/aarch64-linux-gnu-ld: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.o: in function `__clock_mult_uint128':
> /linux/work/arch/arm64/kvm/hyp/nvhe/clock.c:27:(.hyp.text+0x120d8): undefined reference to `__kvm_nvhe___lshrti3'
> /linux/work/arch/arm64/kvm/hyp/nvhe/clock.c:27:(.hyp.text+0x120d8): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `__kvm_nvhe___lshrti3'
>
> Similar to commit 9bfe7553fadb ("arm64: Implement __lshrti3 library function"),
> this change use the added helper.
>
This is with the pkvm tracefs patches found here https://lore.kernel.org/all/20250516134031.661124-3-vdonnefort@google.com
>
> Cc: Marc Zyngier <maz@kernel.org>
> Cc: Oliver Upton <oliver.upton@linux.dev>
> Cc: Joey Gouly <joey.gouly@arm.com>
> Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
> Cc: Zenghui Yu <yuzenghui@huawei.com>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will@kernel.org>
>
> Suggested-by: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>
> ---
> arch/arm64/kvm/hyp/nvhe/Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
> index a76522d63c3e..3dd2c780bbfc 100644
> --- a/arch/arm64/kvm/hyp/nvhe/Makefile
> +++ b/arch/arm64/kvm/hyp/nvhe/Makefile
> @@ -17,7 +17,7 @@ ccflags-y += -fno-stack-protector \
> hostprogs := gen-hyprel
> HOST_EXTRACFLAGS += -I$(objtree)/include
>
> -lib-objs := clear_page.o copy_page.o memcpy.o memset.o
> +lib-objs := clear_page.o copy_page.o memcpy.o memset.o tishift.o
> lib-objs := $(addprefix ../../../lib/, $(lib-objs))
>
> CFLAGS_switch.nvhe.o += -Wno-override-init
> --
> 2.43.0
next prev parent reply other threads:[~2025-06-10 15:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-10 15:11 [PATCH] KVM: arm64: nvhe: Fix build failure with gcc Aneesh Kumar K.V (Arm)
2025-06-10 15:17 ` Aneesh Kumar K.V [this message]
2025-06-10 15:31 ` Marc Zyngier
2025-06-10 15:48 ` Vincent Donnefort
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