nptl: Move __pthread_unwind_next into libc

It's necessary to stub out __libc_disable_asynccancel and
__libc_enable_asynccancel via rtld-stubbed-symbols because the new
direct references to the unwinder result in symbol conflicts when the
rtld exception handling from libc is linked in during the construction
of librtld.map.

unwind-forcedunwind.c is merged into unwind-resume.c.  libc now needs
the functions that were previously only used in libpthread.

The GLIBC_PRIVATE exports of __libc_longjmp and __libc_siglongjmp are
no longer needed, so switch them to hidden symbols.

The symbol __pthread_unwind_next has been moved using
scripts/move-symbol-to-libc.py.

Reviewed-by: Adhemerva Zanella  <adhemerval.zanella@linaro.org>

1 files changed, 0 insertions, 4 deletions

diff --git a/setjmp/Versions b/setjmp/Versions
index 2baa49a..3c7cf87 100644
--- a/setjmp/Versions
+++ b/setjmp/Versions
@@ -9,8 +9,4 @@ libc {
     # s*
     setjmp;
   }
-  GLIBC_PRIVATE {
-    # helper functions
-    __libc_longjmp; __libc_siglongjmp;
-  }
 }