hurd: Fix using interposable hurd_thread_self

Create a private hidden __hurd_thread_self alias, and use that one.

Fixes 2f8ecb58a59eb82c43214d000842d99644a662d1
"hurd: Fix x86_64 _hurd_tls_fork" and
c7fcce38c83a2bb665ef5dc4981bf20c7e586123
"hurd: Make sure to not use tcb->self"

Reported-by: Joseph Myers <joseph@codesourcery.com>
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/hurd/Versions b/hurd/Versions
index 3d8b412..439e8ab 100644
--- a/hurd/Versions
+++ b/hurd/Versions
@@ -156,6 +156,7 @@ libc {
     __libc_open; __libc_close;
 
     # Used by libpthread.
+    __hurd_thread_self;
     _hurd_sigstate_set_global_rcv;
     _hurd_sigstate_lock;
     _hurd_sigstate_pending;