[linux-stable-rc:linux-3.16.y 2872/3488] head64.c:undefined reference to `__gcov_exit'

[kbuild test robot <fengguang.wu@intel.com>]

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Hi Andrey,

It's probably a bug fix that unveils the link errors.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-3.16.y
head:   0b9f4cdd4d75131d8886b919bbf6e0c98906d36e
commit: 3cb0dc19883f0c69225311d4f76aa8128d3681a4 [2872/3488] module: fix types of device tables aliases
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        git checkout 3cb0dc19883f0c69225311d4f76aa8128d3681a4
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   arch/x86/kernel/head64.o: In function `_GLOBAL__sub_D_00100_1_early_pmd_flags':
>> head64.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
   arch/x86/kernel/head.o: In function `_GLOBAL__sub_D_00100_1_reserve_ebda_region':
   head.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
   init/built-in.o: In function `_GLOBAL__sub_D_00100_1___ksymtab_system_state':
   main.c:(.text.exit+0x5): undefined reference to `__gcov_exit'
   init/built-in.o: In function `_GLOBAL__sub_D_00100_1_root_mountflags':
   do_mounts.c:(.text.exit+0x10): undefined reference to `__gcov_exit'
   init/built-in.o: In function `_GLOBAL__sub_D_00100_1_initrd_load':
   do_mounts_initrd.c:(.text.exit+0x1b): undefined reference to `__gcov_exit'
   init/built-in.o:initramfs.c:(.text.exit+0x26): more undefined references to `__gcov_exit' follow

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