hurd: Fix pthread_self() without libpthread

5476f8cd2e68 ("htl: move pthread_self info libc.") moved the htl
pthread_self() function from libpthread to libc, replacing the previous libc
stub that just returns 0. And 53da64d1cf36 ("htl: Initialize ___pthread_self
early") added initialization code which is needed before being able to
call pthread_self. It is currently in libpthread, and thus never called
before programs can call pthread_self from libc, which then segfaults
when accessing _pthread_self()->thread.

This moves the initialization to libc itself, as initialized variables, so
pthread_self can always be called fine.

1 files changed, 1 insertions, 0 deletions

diff --git a/htl/Versions b/htl/Versions
index e1524117a0..69b79b4f1b 100644
--- a/htl/Versions
+++ b/htl/Versions
@@ -38,6 +38,7 @@ libc {
     __pthread_cleanup_stack;
     __pthread_total;
     ___pthread_self;
+    __pthread_init_thread;
   }
 }