[COMMITTED PATCH] BZ#18383: Add test case for large alignment in TLS blocks.

[H.J. Lu]

On Thu, May 7, 2015 at 2:10 PM, Roland McGrath <roland@hack.frob.com> wrote:
> The log entry needs the BZ# marker.
>
> I'm having a hard time finding the calculation in the dynamic-linking case
> that corresponds to this piece of __libc_setup_tls.  Since there are two
> places where the logic should match, we really should make it much more
> clear how they relate.  If there isn't any obvious refactoring that would
> share more of this logic between the two cases, can you at least add a
> comment in __libc_setup_tls that points to the implementation of the
> matching logic in the dynamic-linking case?
>

Here is the updated patch.


-- 
H.J.
--
We need to align TCB offset to the maximum alignment for TLS_TCB_AT_TP
targets, similar to what _dl_allocate_tls_storage in elf/dl-tls.c does.

[BZ #18383]
* csu/libc-tls.c (__libc_setup_tls): Align TCB offset to the
maximum alignment for TLS_TCB_AT_TP targets.
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