Re: New flag --keep-section <section_name> to prevent certain sections from being linker garbage collected.

[Sriraman Tallam <tmsriram at google dot com>]

Hi,

On Thu, Apr 19, 2012 at 4:36 PM, Ian Lance Taylor <iant@google.com> wrote:
> Sriraman Tallam <tmsriram@google.com> writes:
>
>> It comes from libpthread.a when linking statically. For GNU ld, this
>> requirement can be placed in the linker script. For gold, I could hard
>> code the name in "is_section_name_included" function. Do you prefer
>> that?  Right now, to include symbols that are discarded by gc, we can
>> get away by using -u <symbol>. However, for local symbols this is a
>> problem which is the case with .rodata.nptl_version.
>
> If the .rodata.nptl_version section should not be removed by the garbage
> collector, then I think it would be fine to add .rodata.nptl_version to
> is_section_name_included with an appropriate comment.

I am resurfacing this discussion as this was not resolved last time
around although Ian did approve including ".rodata.nptl_version"
always.  So, I have included a patch to keep ".rodata.nptl_version"
always in is_section_name_included.  The other ways to avoid baking
pthread knowledge into the linker is to add a --keep-section option or
to use a linker script which is not the gold way.

Please review.

Thanks
Sri


>
> Ian

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