S/390: Make jmp_buf extendible.

1 files changed, 44 insertions, 0 deletions

diff --git a/sysdeps/s390/v1-sigjmp.c b/sysdeps/s390/v1-sigjmp.c
new file mode 100644
index 0000000..b624d16
--- /dev/null
+++ b/sysdeps/s390/v1-sigjmp.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 1992-2013 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
+   <http://www.gnu.org/licenses/>.
+
+   Copied from setjmp/sigjmp.c for extending jmp_buf.  */
+
+#include <bits/wordsize.h>
+#include <shlib-compat.h>
+
+#if !defined NOT_IN_libc && defined SHARED
+# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19)
+#  include <stddef.h>
+#  include <v1-setjmp.h>
+#  include <signal.h>
+
+/* This function is called by the `sigsetjmp' macro
+   before doing a `__setjmp' on ENV[0].__jmpbuf.
+   Always return zero.  */
+
+int
+__v1__sigjmp_save (__v1__sigjmp_buf env, int savemask)
+{
+  env[0].__mask_was_saved = (savemask &&
+			     __sigprocmask (SIG_BLOCK, (sigset_t *) NULL,
+					    &env[0].__saved_mask) == 0);
+
+  return 0;
+}
+
+# endif /* SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) */
+#endif /* !NOT_IN_libc && SHARED  */