From: Will Deacon <will.deacon@arm.com>
To: Qian Cai <cai@lca.pw>
Cc: Dave Martin <Dave.Martin@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
linux-arm-kernel@lists.infradead.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
linux-efi@vger.kernel.org
Subject: Re: "arm64: Silence gcc warnings about arch ABI drift" breaks clang
Date: Fri, 7 Jun 2019 16:25:17 +0100 [thread overview]
Message-ID: <20190607152517.GC19862@fuggles.cambridge.arm.com> (raw)
In-Reply-To: <1559920965.6132.56.camel@lca.pw>
On Fri, Jun 07, 2019 at 11:22:45AM -0400, Qian Cai wrote:
> The linux-next commit "arm64: Silence gcc warnings about arch ABI drift" [1]
> breaks clang build where it screams that unknown option "-Wno-psabi" and
> generates errors below,
So that can be easily fixed with cc-option...
> [1] https://lore.kernel.org/linux-arm-kernel/1559817223-32585-1-git-send-email-D
> ave.Martin@arm.com/
>
> ./drivers/firmware/efi/libstub/arm-stub.stub.o: In function
> `install_memreserve_table':
> ./linux/drivers/firmware/efi/libstub/arm-stub.c:73: undefined reference to
> `__efistub___stack_chk_guard'
> ./linux/drivers/firmware/efi/libstub/arm-stub.c:73: undefined reference to
> `__efistub___stack_chk_guard'
> ./linux/drivers/firmware/efi/libstub/arm-stub.c:93: undefined reference to
> `__efistub___stack_chk_guard'
> ./linux/drivers/firmware/efi/libstub/arm-stub.c:93: undefined reference to
> `__efistub___stack_chk_guard'
> ./linux/drivers/firmware/efi/libstub/arm-stub.c:94: undefined reference to
> `__efistub___stack_chk_fail
... but this looks unrelated. Are you saying you don't see these errors if
you revert Dave's patch?
Will
next prev parent reply other threads:[~2019-06-07 15:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-07 15:22 "arm64: Silence gcc warnings about arch ABI drift" breaks clang Qian Cai
2019-06-07 15:25 ` Will Deacon [this message]
2019-06-07 15:26 ` Qian Cai
2019-06-07 15:40 ` Nathan Chancellor
2019-06-07 15:41 ` Will Deacon
2019-06-07 15:42 ` Dave Martin
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