Re: [RFC PATCH PoC 08/11] x86/boot: Move startup code out of __head section

[kernel test robot <lkp@intel.com>]

Hi Ard,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:

[auto build test ERROR on 121c335b36e02d6aefb72501186e060474fdf33c]

url:    https://github.com/intel-lab-lkp/linux/commits/Ard-Biesheuvel/x86-linkage-Add-SYM_PI_ALIAS-macro-helper-to-emit-symbol-aliases/20250423-191433
base:   121c335b36e02d6aefb72501186e060474fdf33c
patch link:    https://lore.kernel.org/r/20250423110948.1103030-21-ardb%2Bgit%40google.com
patch subject: [RFC PATCH PoC 08/11] x86/boot: Move startup code out of __head section
config: x86_64-buildonly-randconfig-006-20250424 (https://download.01.org/0day-ci/archive/20250424/202504242345.Zs1dvyW7-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250424/202504242345.Zs1dvyW7-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504242345.Zs1dvyW7-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld: Unexpected GOT entries detected!
   ld: vmlinux.o: in function `__pi_startup_64_load_idt':
>> (.text+0x1525c3): undefined reference to `__pi_memset'
>> ld: (.text+0x15262d): undefined reference to `__pi_memcpy'
   ld: vmlinux.o: in function `__pi_startup_64_setup_gdt_idt':
>> (.init.text+0x42254): undefined reference to `__pi_latent_entropy'
   ld: vmlinux.o: in function `__pi___startup_64':
   (.init.text+0x422d5): undefined reference to `__pi_latent_entropy'
   ld: .tmp_vmlinux1: hidden symbol `__pi_memcpy' isn't defined
   ld: final link failed: bad value

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