[PATCH] libdl.c: static link fail for mips

Bernhard Reutner-Fischer rep.dot.nop at gmail.com
Thu Jul 4 09:59:48 UTC 2013


On 3 June 2013 22:29, Gregory Fong <gregory.0xf0 at gmail.com> wrote:
>> Bernhard Reutner-Fischer wrote:
>> On 23 February 2013 10:48, Bernhard Reutner-Fischer
>> <rep.dot.nop at gmail.com> wrote:
>>> On Fri, Feb 22, 2013 at 02:06:43PM -0800, Vincent Wen wrote:
>>>>When build statically linked applications for MIPS platform,
>>>>sometimes the linker fails with following errors:
>>>>undefined reference to TLS_DTPREL_VALUE
>>>>undefined reference to TLS_TPREL_VALUE
>>>
>>> I still suspect that these uses may need a SHARED guard, no?
>>
>> Would any static linkage legitimately use DTPREL?
>
> Yes, on MIPS, it would use DTPREL: "R_MIPS_TLS_DTPREL32 and
> R_MIPS_TLS_DTPREL64, originally only resolved by the dynamic linker,
> were reused as static relocations as well for use in debug
> information." (see http://www.linux-mips.org/wiki/NPTL )  From what I
> can tell this also applies to TPREL.
>
> As far as I can tell, this is MIPS-specific but also shouldn't break
> other archs, so the patch previously submitted by Vincent Wen
> adequately solves this problem (see
> http://lists.uclibc.org/pipermail/uclibc/2013-March/047701.html ).
> However, the commit comment doesn't explain why it solves the problem,
> so I'll submitting a patch shortly with an improved explanation.

This was applied in the meantime.
Thanks!


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