linux-kernel - Re: [PATCH v2] LoongArch: Implement physical address with ELF program header

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Message-ID: <d6b6aaa8-06f2-1b0d-5ebc-e7a71a20dd7a@loongson.cn>
Date: Tue, 22 Jul 2025 17:05:24 +0800
From: Bibo Mao <maobibo@...ngson.cn>
To: Huacai Chen <chenhuacai@...nel.org>
Cc: kernel test robot <lkp@...el.com>, llvm@...ts.linux.dev,
 oe-kbuild-all@...ts.linux.dev, WANG Xuerui <kernel@...0n.name>,
 Xi Ruoyao <xry111@...111.site>, loongarch@...ts.linux.dev,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] LoongArch: Implement physical address with ELF program
 header



On 2025/7/22 下午12:58, Huacai Chen wrote:
> On Tue, Jul 22, 2025 at 9:33 AM Bibo Mao <maobibo@...ngson.cn> wrote:
>>
>> Oops, it is the obvious compile issue. And I am messed with parallel
>> tasks and do not notice this, what I test is old kernel.
>>
>> Regards
>> Bibo Mao
> Add this part to the patch is enough.
> 
> diff --git a/arch/loongarch/include/asm/addrspace.h
> b/arch/loongarch/include/asm/addrspace.h
> index fe198b473f84..babcc1c6c820 100644
> --- a/arch/loongarch/include/asm/addrspace.h
> +++ b/arch/loongarch/include/asm/addrspace.h
> @@ -18,11 +18,20 @@
>   /*
>    * This gives the physical RAM offset.
>    */
> -#ifndef __ASSEMBLER__
> +#ifdef __ASSEMBLER__
> +
> +#ifndef PHYS_OFFSET
> +#define PHYS_OFFSET    0
> +#endif
> +
> +#else
> +
>   #ifndef PHYS_OFFSET
>   #define PHYS_OFFSET    _UL(0)
>   #endif
> +
>   extern unsigned long vm_map_base;
> +
>   #endif /* __ASSEMBLER__ */
> 
>   #ifndef IO_BASE
sure, will do in this way.

Regards
Bibo Mao
> 
>>
>> On 2025/7/22 上午3:19, kernel test robot wrote:
>>> Hi Bibo,
>>>
>>> kernel test robot noticed the following build errors:
>>>
>>> [auto build test ERROR on 89be9a83ccf1f88522317ce02f854f30d6115c41]
>>>
>>> url:    https://github.com/intel-lab-lkp/linux/commits/Bibo-Mao/LoongArch-Implement-physical-address-with-ELF-program-header/20250721-171418
>>> base:   89be9a83ccf1f88522317ce02f854f30d6115c41
>>> patch link:    https://lore.kernel.org/r/20250721091248.3896152-1-maobibo%40loongson.cn
>>> patch subject: [PATCH v2] LoongArch: Implement physical address with ELF program header
>>> config: loongarch-allnoconfig (https://download.01.org/0day-ci/archive/20250722/202507220309.mDl9W32Y-lkp@intel.com/config)
>>> compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 853c343b45b3e83cc5eeef5a52fc8cc9d8a09252)
>>> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250722/202507220309.mDl9W32Y-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/oe-kbuild-all/202507220309.mDl9W32Y-lkp@intel.com/
>>>
>>> All errors (new ones prefixed by >>):
>>>
>>>>> ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:15: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:18: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:33: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:34: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:41: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:46: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:47: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:50: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: ./arch/loongarch/kernel/vmlinux.lds:57: symbol not found: PHYS_OFFSET
>>>      ld.lld: error: too many errors emitted, stopping now (use --error-limit=0 to see all errors)
>>>
>>