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-rw-r--r--setjmp/bits/setjmp2.h41
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diff --git a/setjmp/bits/setjmp2.h b/setjmp/bits/setjmp2.h
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+/* Checking macros for setjmp functions.
+ * Copyright (C) 2009 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.  */
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp2.h> directly; use <setjmp.h> instead."
+#endif
+
+/* Variant of the longjmp functions which perform some sanity checking.  */
+#ifdef __REDIRECT_NTH
+extern void __REDIRECT_NTH (longjmp,
+			    (struct __jmp_buf_tag __env[1], int __val),
+			    __longjmp_chk) __attribute__ ((__noreturn__));
+extern void __REDIRECT_NTH (_longjmp,
+			    (struct __jmp_buf_tag __env[1], int __val),
+			    __longjmp_chk) __attribute__ ((__noreturn__));
+extern void __REDIRECT_NTH (siglongjmp,
+			    (struct __jmp_buf_tag __env[1], int __val),
+			    __longjmp_chk) __attribute__ ((__noreturn__));
+#else
+extern void __longjmp_chk (struct __jmp_buf_tag __env[1], int __val),
+     __THROW __attribute__ ((__noreturn__));
+# define longjmp __longjmp_chk
+# define _longjmp __longjmp_chk
+# define siglongjmp __longjmp_chk
+#endif