1 files changed, 77 insertions, 0 deletions
diff --git a/sysdeps/generic/sigsetops.h b/sysdeps/generic/sigsetops.h
new file mode 100644
index 0000000000..e8e5553981
--- /dev/null
+++ b/sysdeps/generic/sigsetops.h
@@ -0,0 +1,77 @@
+/* __sigset_t manipulators.  Generic/BSD version.
+   Copyright (C) 1991-2017 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/>.  */
+
+#ifndef _SIGSETOPS_H
+#define _SIGSETOPS_H 1
+
+#include <signal.h>
+
+/* Return a mask that includes SIG only.  The cast to `sigset_t' avoids
+   overflow if `sigset_t' is wider than `int'.  */
+# define __sigmask(sig) (((__sigset_t) 1) << ((sig) - 1))
+
+#define __sigemptyset(set)			\
+  (__extension__ ({				\
+    *(set) = (__sigset_t) 0;			\
+    (void)0;					\
+  }))
+#define __sigfillset(set)			\
+  (__extension__ ({				\
+    *(set) = ~(__sigset_t) 0;			\
+    (void)0;					\
+  }))
+
+# define __sigisemptyset(set)			\
+  (*(set) == (__sigset_t) 0)
+
+# define __sigandset(dest, left, right)		\
+  (__extension__ ({				\
+    *(dest) = *(left) & *(right);		\
+    (void)0;					\
+  }))
+
+# define __sigorset(dest, left, right)		\
+  (__extension__ ({				\
+    *(dest) = *(left) | *(right);		\
+    (void)0;					\
+  }))
+#endif
+
+/* These macros needn't check for a bogus signal number;
+   checking is done in the non-__ versions.  */
+# define __sigismember(set, sig)		\
+  (__extension__ ({				\
+    __sigset_t __mask = __sigmask (sig);	\
+    (set) & __mask ? 1 : 0;			\
+  }))
+
+# define __sigaddset(set, sig)			\
+  (__extension__ ({				\
+    __sigset_t __mask = __sigmask (sig);	\
+    (set) |= __mask;				\
+    (void)0;					\
+  }))
+
+# define __sigdelset(set, sig)			\
+  (__extension__ ({				\
+    __sigset_t __mask = __sigmask (sig);	\
+    (set) &= ~__mask;				\
+    (void)0;					\
+  }))
+
+#endif