nptl: Remove longjmp, siglongjmp from libpthread

The definitions in libc are sufficient, the forwarders are no longer
needed.

The symbols have been moved using scripts/move-symbol-to-libc.py.
s390-linux-gnu and s390x-linux-gnu need a new version placeholder
to keep the GLIBC_2.19 symbol version in libpthread.

Tested on i386-linux-gnu, powerpc64le-linux-gnu, s390x-linux-gnu,
x86_64-linux-gnu.  Built with build-many-glibcs.py.

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

1 files changed, 25 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/s390/libpthread-compat.c b/sysdeps/unix/sysv/linux/s390/libpthread-compat.c
new file mode 100644
index 0000000000..b4b989c8c5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/libpthread-compat.c
@@ -0,0 +1,25 @@
+/* Placeholder definitions to pull in removed symbol versions.  s390 version.
+   Copyright (C) 2019-2021 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <nptl/libpthread-compat.c>
+
+/* GLIBC_2.19 was used by a longjmp compatibility symbol.  */
+#if (SHLIB_COMPAT (libpthread, GLIBC_2_19, GLIBC_2_20))
+compat_symbol (libpthread, __libpthread_version_placeholder_1,
+               __libpthread_version_placeholder, GLIBC_2_19);
+#endif