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

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Message-ID: <CAAhV-H74EpbKsPpc_ToGqP6LKx04z+Dvyuw52u-1A4nQ-wr6WQ@mail.gmail.com>
Date: Tue, 22 Jul 2025 12:58:41 +0800
From: Huacai Chen <chenhuacai@...nel.org>
To: Bibo Mao <maobibo@...ngson.cn>
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 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

>
> 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)
> >
>