tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   8096acd7442e613fad0354fc8dfdb2003cceea0b
commit: 788691464c29455346dc613a3b43c2fb9e5757a4 mm/slub: use stackdepot to save stack trace in objects
date:   6 days ago
config: arc-randconfig-r023-20210714 (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
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/torvalds/linux.git/commit/?id=788691464c29455346dc613a3b43c2fb9e5757a4
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 788691464c29455346dc613a3b43c2fb9e5757a4
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All errors (new ones prefixed by >>):

   arceb-elf-ld: lib/stackdepot.o: in function `filter_irq_stacks':

quoted

(.text+0x18): undefined reference to `__irqentry_text_start'
arceb-elf-ld: (.text+0x18): undefined reference to `__irqentry_text_start'
arceb-elf-ld: (.text+0x34): undefined reference to `__irqentry_text_end'
arceb-elf-ld: (.text+0x34): undefined reference to `__irqentry_text_end'
arceb-elf-ld: (.text+0x64): undefined reference to `__softirqentry_text_start'
arceb-elf-ld: (.text+0x64): undefined reference to `__softirqentry_text_start'
arceb-elf-ld: (.text+0x6c): undefined reference to `__softirqentry_text_end'
arceb-elf-ld: (.text+0x6c): undefined reference to `__softirqentry_text_end'

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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org