2.5-18.1

setjmp/sigjmp.c

@@ -0,0 +1,35 @@
+/* Copyright (C) 1992, 1994, 1997 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stddef.h>
+#include <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
+__sigjmp_save (sigjmp_buf env, int savemask)
+{
+  env[0].__mask_was_saved = (savemask &&
+			     __sigprocmask (SIG_BLOCK, (sigset_t *) NULL,
+					    &env[0].__saved_mask) == 0);
+
+  return 0;
+}