linux-kernel - Re: [tip:timers/urgent 3/3] llvm-readelf: warning: 'arch/riscv/kernel/vdso/hwprobe.o': bitcode files are not supported

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Message-ID: <20250504113922-5cc48741-0c27-4384-a77f-c088050bc747@linutronix.de>
Date: Sun, 4 May 2025 11:42:15 +0200
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Ingo Molnar <mingo@...nel.org>
Cc: kernel test robot <lkp@...el.com>, llvm@...ts.linux.dev, 
	oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org, x86@...nel.org, 
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [tip:timers/urgent 3/3] llvm-readelf: warning:
 'arch/riscv/kernel/vdso/hwprobe.o': bitcode files are not supported

Hi Ingo,

On Sun, May 04, 2025 at 01:26:54PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/urgent
> head:   7aeb1538be5df3efa1d799e5428ac3a0ae802293
> commit: 7aeb1538be5df3efa1d799e5428ac3a0ae802293 [3/3] vdso: Reject absolute relocations during build
> :::::: branch date: 4 hours ago
> :::::: commit date: 4 hours ago
> config: riscv-randconfig-001-20250503 (https://download.01.org/0day-ci/archive/20250503/202505030636.3ExDB8O2-lkp@intel.com/config)
> compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250503/202505030636.3ExDB8O2-lkp@intel.com/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/r/202505030636.3ExDB8O2-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
> >> llvm-readelf: warning: 'arch/riscv/kernel/vdso/hwprobe.o': bitcode files are not supported
> --
> >> llvm-readelf: warning: 'arch/riscv/kernel/vdso/hwprobe.o': bitcode files are not supported

Could you drop "vdso: Reject absolute relocations during build" from the "urgent"
branch for now? It is not necessary for the actual bugfix.
I have an idea on how to fix the issue found by 0day but those patches can then
go through the normal process.


Thomas