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Subject: [Bug target/49541] [4.6/4.7 regression] TLS support partially broken in 64-bit mode
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49541

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2011.07.13 09:20:38
         AssignedTo|unassigned at gcc dot       |ro at gcc dot gnu.org
                   |gnu.org                     |
     Ever Confirmed|0                           |1

--- Comment #3 from Rainer Orth <ro at gcc dot gnu.org> 2011-07-13 09:20:38 UTC ---
Created attachment 24750
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24750
proposed patch

This patch seems to do it for me.  It took me some time due to several false
starts. Unfortunately, with gld instead of Sun ld, you don't see the problem.

Since I could only run the bootstrap on a Solaris 8 branded zone where the
default
libthread.so is a copy of the lwp one, could you try it on bare metal to
confirm
that it works?

I'll backport to 4.6 once this is on mainline.

Thanks.
  Rainer