[Bug target/58066] __tls_get_addr is called with misaligned stack on x86-64

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-07-11
                 CC|                            |ubizjak at gmail dot com
            Version|unknown                     |6.0
   Target Milestone|---                         |6.0
            Summary|GCC mis-compiles access to  |__tls_get_addr is called
                   |TLS variable with -fPIC on  |with misaligned stack on
                   |x86_64                      |x86-64
     Ever confirmed|0                           |1

--- Comment #9 from H.J. Lu <hjl.tools at gmail dot com> ---
__tls_get_addr is called with misaligned stack on x86-64. It
crashes ld.so when it tries to save and restore XMM registers
with aligned load/store:

https://sourceware.org/ml/libc-alpha/2015-07/msg00365.html