Re: [PATCH] nvdimm: constify device_type structures

From	Bhumika Goyal <bhumirks@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] nvdimm: constify device_type structures
Date	2017-01-25 17:20 +0100
Message-ID	<t3ysF-403-9@gated-at.bofh.it> (permalink)
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On Wed, Jan 25, 2017 at 9:31 PM, Joe Perches <joe@perches.com> wrote:
> On Wed, 2017-01-25 at 07:49 +0100, Julia Lawall wrote:
>> What does the data column actually represent?  I tried size on the .o file
>> generated from:
>>
>> commit a65f0161f4d69d6738d4821e649448312cd818e2
>> Author: Stephen Rothwell <sfr@canb.auug.org.au>
>> Date:   Tue Jan 17 15:22:28 2017 +1100
>>
>> with CONFIG_X86_64=y and I get:
>>
>>    text          data     bss     dec     hex filename
>>   19726          3480      16   23222    5ab6 drivers/nvdimm/namespace_devs.o
>>
>> but when I run objdump -sh drivers/nvdimm/namespace_devs.o, I find a .data
>> segment of size 1008 and a .data.unlikely segment of size 8, which don't
>> match up with the results of size.
>
> Likely you have dynamic_debug enabled and you
> need to include these additional sections:
>
>         __jump_table
>         __verbose
>
> If user_mode_linux is enabled, add sections:
>
>         .fini_array
>         .init_array
>

Thanks for the explanation. I also compiled the patch for x86-64 but
couldn't find what went wrong but this solved the problem.

Thanks,
Bhumika

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[PATCH] nvdimm: constify device_type structures Bhumika Goyal <bhumirks@gmail.com> - 2017-01-24 20:30 +0100
  Re: [PATCH] nvdimm: constify device_type structures Dan Williams <dan.j.williams@intel.com> - 2017-01-24 21:00 +0100
  Re: [PATCH] nvdimm: constify device_type structures Joe Perches <joe@perches.com> - 2017-01-25 03:40 +0100
    Re: [PATCH] nvdimm: constify device_type structures Dan Williams <dan.j.williams@intel.com> - 2017-01-25 03:50 +0100
      Re: [PATCH] nvdimm: constify device_type structures Joe Perches <joe@perches.com> - 2017-01-25 03:50 +0100
        Re: [PATCH] nvdimm: constify device_type structures Julia Lawall <julia.lawall@lip6.fr> - 2017-01-25 07:50 +0100
          Re: [PATCH] nvdimm: constify device_type structures Julia Lawall <julia.lawall@lip6.fr> - 2017-01-25 17:10 +0100
          Re: [PATCH] nvdimm: constify device_type structures Joe Perches <joe@perches.com> - 2017-01-25 17:10 +0100
            Re: [PATCH] nvdimm: constify device_type structures Bhumika Goyal <bhumirks@gmail.com> - 2017-01-25 17:20 +0100

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