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From: Nathan Chancellor <natechancellor@gmail.com>
To: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Stephen Rothwell <sfr@canb.auug.org.au>,
	linux-next@vger.kernel.org
Subject: Re: next-20201105 - build issue with KASAN on ARM
Date: Sat, 7 Nov 2020 13:04:53 -0700	[thread overview]
Message-ID: <20201107200453.GA92349@ubuntu-m3-large-x86> (raw)
In-Reply-To: <7021.1604774000@turing-police>

Hi Valdis,

On Sat, Nov 07, 2020 at 01:33:20PM -0500, Valdis Klētnieks wrote:
> commit d6d51a96c7d63b7450860a3037f2d62388286a52
> Author: Linus Walleij <linus.walleij@linaro.org>
> Date:   Sun Oct 25 23:52:08 2020 +0100
> 
>     ARM: 9014/2: Replace string mem* functions for KASan
> 
> I'm trying to figure out why this has 3 Tested-By: tags but blows up for fairly obvious
> reasons on ARM.....

Because it builds fine if you check out Russell's branch. This build
error only happens because of a treewide change in -mm that was applied
after the ARM merge:

https://lore.kernel.org/linux-arm-kernel/20201106094434.GA3268933@ubuntu-m3-large-x86/

https://lore.kernel.org/linux-arm-kernel/20201106180929.GD2959494@ubuntu-m3-large-x86/

Stephen could apply that diff as a fixup for the -mm patch when he
builds -next or I can send it as a formal patch for him to apply.

>   CC      arch/arm/boot/compressed/string.o
> arch/arm/boot/compressed/string.c:24:1: error: attribute 'alias' argument not a string
>  void *__memcpy(void *__dest, __const void *__src, size_t __n) __alias(memcpy);
>  ^~~~
> arch/arm/boot/compressed/string.c:25:1: error: attribute 'alias' argument not a string
>  void *__memmove(void *__dest, __const void *__src, size_t count) __alias(memmove);
>  ^~~~
> arch/arm/boot/compressed/string.c:26:1: error: attribute 'alias' argument not a string
>  void *__memset(void *s, int c, size_t count) __alias(memset);
>  ^~~~
> make[2]: *** [scripts/Makefile.build:283: arch/arm/boot/compressed/string.o] Error 1
> make[1]: *** [arch/arm/boot/Makefile:64: arch/arm/boot/compressed/vmlinux] Error 2
> 

Cheers,
Nathan

  reply	other threads:[~2020-11-07 20:04 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-07 18:33 Valdis Klētnieks
2020-11-07 20:04 ` Nathan Chancellor [this message]
2020-11-08 22:19   ` Stephen Rothwell
2020-11-08 22:21     ` Nathan Chancellor
2020-11-09  0:17       ` [PATCH] ARM: boot: Quote aliased symbol names in string.c Nathan Chancellor
2020-11-09  7:40         ` Ard Biesheuvel
2020-11-09 16:04         ` Linus Walleij

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