linux-kernel - Re: video-vga.c:undefined reference to `__gcov

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Message-ID: <1473041902.5018.63.camel@perches.com>
Date:   Sun, 04 Sep 2016 19:18:22 -0700
From:   Joe Perches <joe@...ches.com>
To:     kbuild test robot <fengguang.wu@...el.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: video-vga.c:undefined reference to `__gcov_init'

On Mon, 2016-09-05 at 10:13 +0800, kbuild test robot wrote:
> Hi Joe,

Hi Fengguang

> FYI, the error/warning still remains.

Is this really my responsibility?
I don't think so.
I didn't submit this patch to stable.
I don't know nor care really who did,
but I think the robot should ping the
stable submitter.

cheers, Joe

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   c6935931c1894ff857616ff8549b61236a19148f
> commit: cb984d101b30eb7478d32df56a0023e4603cba7f compiler-gcc: integrate the various compiler-gcc[345].h files
> date:   1 year, 2 months ago
> config: x86_64-rhel_gcov (attached as .config)
> compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
> reproduce:
>         git checkout cb984d101b30eb7478d32df56a0023e4603cba7f
>         # save the attached .config to linux build tree
>         make ARCH=x86_64 
> 
> All errors (new ones prefixed by >>):
> 
>    arch/x86/realmode/rm/video-vga.o:(.data+0x150): undefined reference to `__gcov_merge_add'
>    arch/x86/realmode/rm/video-vga.o: In function `_GLOBAL__sub_I_65535_0_vga_crtc':
> > 
> > > 
> > > video-vga.c:(.text.startup+0x7): undefined reference to `__gcov_init'
>    arch/x86/realmode/rm/wakemain.o:(.data+0x70): undefined reference to `__gcov_merge_add'
>    arch/x86/realmode/rm/wakemain.o: In function `_GLOBAL__sub_I_65535_0_main':
> > 
> > > 
> > > wakemain.c:(.text.startup+0x1f4): undefined reference to `__gcov_init'
>    arch/x86/realmode/rm/video-mode.o:(.data+0x90): undefined reference to `__gcov_merge_add'
>    arch/x86/realmode/rm/video-mode.o: In function `_GLOBAL__sub_I_65535_0_probe_cards':
> > 
> > > 
> > > video-mode.c:(.text.startup+0x7): undefined reference to `__gcov_init'
>    arch/x86/realmode/rm/regs.o:(.data+0x30): undefined reference to `__gcov_merge_add'
>    arch/x86/realmode/rm/regs.o: In function `_GLOBAL__sub_I_65535_0_initregs':
> > 
> > > 
> > > regs.c:(.text.startup+0x7): undefined reference to `__gcov_init'
>    arch/x86/realmode/rm/video-vesa.o:(.data+0x70): undefined reference to `__gcov_merge_add'
>    arch/x86/realmode/rm/video-vesa.o: In function `_GLOBAL__sub_I_65535_0_video_vesa.c':
> > 
> > > 
> > > video-vesa.c:(.text.startup+0x7): undefined reference to `__gcov_init'
>    arch/x86/realmode/rm/video-bios.o:(.data+0x90): undefined reference to `__gcov_merge_add'
>    arch/x86/realmode/rm/video-bios.o: In function `_GLOBAL__sub_I_65535_0_video_bios.c':
> > 
> > > 
> > > video-bios.c:(.text.startup+0x7): undefined reference to `__gcov_init'
> ---
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