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, 2 deletions

diff --git a/sysdeps/nptl/pthread-functions.h b/sysdeps/nptl/pthread-functions.h
index 6ef7602cb9..280655fe40 100644
--- a/sysdeps/nptl/pthread-functions.h
+++ b/sysdeps/nptl/pthread-functions.h
@@ -57,8 +57,6 @@ struct pthread_functions
   int (*ptr___pthread_setspecific) (pthread_key_t, const void *);
 #define HAVE_PTR_NTHREADS
   unsigned int *ptr_nthreads;
-  void (*ptr___pthread_unwind) (__pthread_unwind_buf_t *)
-       __attribute ((noreturn)) __cleanup_fct_attribute;
   void (*ptr__nptl_deallocate_tsd) (void);
   int (*ptr__nptl_setxid) (struct xid_command *);
   void (*ptr_set_robust) (struct pthread *);