linux-kernel - [ardb:efi-decompressor-v4 4/9] drivers/firmware/efi/libstub/intrinsics.c:18:7: error: definition of builtin function '__builtin

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Date:   Sat, 27 Aug 2022 14:21:01 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [ardb:efi-decompressor-v4 4/9]
 drivers/firmware/efi/libstub/intrinsics.c:18:7: error: definition of builtin
 function '__builtin_memcpy'

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git efi-decompressor-v4
head:   2943178d7555c331c19e9cce9a83e47f9513f3b1
commit: 74f59f87ddbcbacc7232ac6800916260a0632126 [4/9] efi/libstub: use EFI provided memcpy/memset routines
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220827/202208271446.2z1VzPD0-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/commit/?id=74f59f87ddbcbacc7232ac6800916260a0632126
        git remote add ardb git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
        git fetch --no-tags ardb efi-decompressor-v4
        git checkout 74f59f87ddbcbacc7232ac6800916260a0632126
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> drivers/firmware/efi/libstub/intrinsics.c:18:7: error: definition of builtin function '__builtin_memcpy'
   void *memcpy(void *dst, const void *src, size_t len)
         ^
   arch/x86/include/asm/string_32.h:150:25: note: expanded from macro 'memcpy'
   #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
                           ^
>> drivers/firmware/efi/libstub/intrinsics.c:26:7: error: definition of builtin function '__builtin_memset'
   void *memset(void *dst, int c, size_t len)
         ^
   arch/x86/include/asm/string_32.h:195:29: note: expanded from macro 'memset'
   #define memset(s, c, count) __builtin_memset(s, c, count)
                               ^
   2 errors generated.


vim +/__builtin_memcpy +18 drivers/firmware/efi/libstub/intrinsics.c

    17	
  > 18	void *memcpy(void *dst, const void *src, size_t len)
    19	{
    20		efi_bs_call(copy_mem, dst, src, len);
    21		return dst;
    22	}
    23	
    24	extern void *memmove(void *dst, const void *src, size_t len) __alias(memcpy);
    25	
  > 26	void *memset(void *dst, int c, size_t len)

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp