[PATCH v3 00/37] libpthread removal: NPTL forwarders are gone

[Florian Weimer]

I've pushed a rebase to fw/libpthread-20180318b.  Apart from abilist
merges (automatically resolved) and various nptl/Versions and
nptl/Makefile conflicts (manually resolved), the main difference is
this:

diff --git a/nptl/pthread_exit.c b/nptl/pthread_exit.c
index 1a93f371a9..6abf66463e 100644
--- a/nptl/pthread_exit.c
+++ b/nptl/pthread_exit.c
@@ -25,16 +25,22 @@
 void
 __pthread_exit (void *value)
 {
   {
     struct unwind_link *unwind_link = __libc_unwind_link_get ();
     if (unwind_link == NULL)
       __libc_fatal (LIBGCC_S_SO
                     " must be installed for pthread_exit to work\n");
   }
 
   THREAD_SETMEM (THREAD_SELF, result, value);
 
   __do_cancel ();
 }
 libc_hidden_def (__pthread_exit)
 weak_alias (__pthread_exit, pthread_exit)
+
+/* Ensure that the unwinder is always linked in (the __pthread_unwind
+   reference from __do_cancel is weak).  Use ___pthread_unwind_next
+   (three underscores) to produce a strong reference to the same
+   file.  */
+PTHREAD_STATIC_FN_REQUIRE (___pthread_unwind_next)

Without this, nptl/tst-pthread_exit-nothreads-static fails.  After
Adhemerval's cleanups, we no longer link in the unwinder in that minimal
test program, so the call to __pthread_unwind turns into a call to a
null pointer.

Thanks,
Florian