From: Nathan Chancellor <nathan@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Sami Tolvanen <samitolvanen@google.com>,
Jian Cai <jiancai@google.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com,
stable@vger.kernel.org
Subject: Re: [PATCH] arm64: alternatives: Move length validation in alternative_{insn,endif}
Date: Thu, 15 Apr 2021 06:25:57 -0700 [thread overview]
Message-ID: <YHg+5RSG4XPLlZD8@archlinux-ax161> (raw)
In-Reply-To: <20210415091743.GB1015@arm.com>
On Thu, Apr 15, 2021 at 10:17:43AM +0100, Catalin Marinas wrote:
> Hi Nathan,
>
> On Tue, Apr 13, 2021 at 05:08:04PM -0700, Nathan Chancellor wrote:
> > After commit 2decad92f473 ("arm64: mte: Ensure TIF_MTE_ASYNC_FAULT is
> > set atomically"), LLVM's integrated assembler fails to build entry.S:
> >
> > <instantiation>:5:7: error: expected assembly-time absolute expression
> > .org . - (664b-663b) + (662b-661b)
> > ^
> > <instantiation>:6:7: error: expected assembly-time absolute expression
> > .org . - (662b-661b) + (664b-663b)
> > ^
>
> I tried the latest Linus' tree and linux-next (defconfig) with this
> commit in and I can't get your build error. I used both clang-10 from
> Debian stable and clang-11 from Debian sid. So, which clang version did
> you use or which kernel config options?
>
> --
> Catalin
>
Hi Catalin,
Interesting, this reproduces for me with LLVM 12 or newer with just
defconfig.
$ make -j"$(nproc)" ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- LLVM=1 LLVM_IAS=1 defconfig arch/arm64/kernel/entry.o
https://github.com/ClangBuiltLinux/continuous-integration2/runs/2350258778?check_suite_focus=true
Cheers,
Nathan
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next prev parent reply other threads:[~2021-04-15 13:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-14 0:08 [PATCH] arm64: alternatives: Move length validation in alternative_{insn, endif} Nathan Chancellor
2021-04-14 17:46 ` Sami Tolvanen
2021-04-14 19:22 ` Nick Desaulniers
2021-04-15 9:17 ` [PATCH] arm64: alternatives: Move length validation in alternative_{insn,endif} Catalin Marinas
2021-04-15 13:25 ` Nathan Chancellor [this message]
2021-04-15 14:02 ` Catalin Marinas
2021-04-15 15:50 ` [PATCH] arm64: alternatives: Move length validation in alternative_{insn, endif} Sami Tolvanen
2021-04-15 16:57 ` [PATCH] arm64: alternatives: Move length validation in alternative_{insn,endif} Catalin Marinas
2021-04-15 17:48 ` [PATCH] arm64: alternatives: Move length validation in alternative_{insn, endif} Catalin Marinas
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