cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / x86_64-linux-gnu / bits / sigaction.h

diff --git a/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/sigaction.h b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/sigaction.h
new file mode 100644 (file)
index 0000000..a4225c8
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/sigaction.h
@@ -0,0 +1,83 @@
+/* The proper definitions for Linux's sigaction.
+   Copyright (C) 1993-2018 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 _BITS_SIGACTION_H
+#define _BITS_SIGACTION_H 1
+
+#ifndef _SIGNAL_H
+# error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
+#endif
+
+/* Structure describing the action to be taken when a signal arrives.  */
+struct sigaction
+  {
+    /* Signal handler.  */
+#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED
+    union
+      {
+       /* Used if SA_SIGINFO is not set.  */
+       __sighandler_t sa_handler;
+       /* Used if SA_SIGINFO is set.  */
+       void (*sa_sigaction) (int, siginfo_t *, void *);
+      }
+    __sigaction_handler;
+# define sa_handler    __sigaction_handler.sa_handler
+# define sa_sigaction  __sigaction_handler.sa_sigaction
+#else
+    __sighandler_t sa_handler;
+#endif
+
+    /* Additional set of signals to be blocked.  */
+    __sigset_t sa_mask;
+
+    /* Special flags.  */
+    int sa_flags;
+
+    /* Restore handler.  */
+    void (*sa_restorer) (void);
+  };
+
+/* Bits in `sa_flags'.  */
+#define        SA_NOCLDSTOP  1          /* Don't send SIGCHLD when children stop.  */
+#define SA_NOCLDWAIT  2                 /* Don't create zombie on child death.  */
+#define SA_SIGINFO    4                 /* Invoke signal-catching function with
+                                   three arguments instead of one.  */
+#if defined __USE_XOPEN_EXTENDED || defined __USE_MISC
+# define SA_ONSTACK   0x08000000 /* Use signal stack by using `sa_restorer'. */
+#endif
+#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
+# define SA_RESTART   0x10000000 /* Restart syscall on signal return.  */
+# define SA_NODEFER   0x40000000 /* Don't automatically block the signal when
+                                   its handler is being executed.  */
+# define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler.  */
+#endif
+#ifdef __USE_MISC
+# define SA_INTERRUPT 0x20000000 /* Historical no-op.  */
+
+/* Some aliases for the SA_ constants.  */
+# define SA_NOMASK    SA_NODEFER
+# define SA_ONESHOT   SA_RESETHAND
+# define SA_STACK     SA_ONSTACK
+#endif
+
+/* Values for the HOW argument to `sigprocmask'.  */
+#define        SIG_BLOCK     0          /* Block signals.  */
+#define        SIG_UNBLOCK   1          /* Unblock signals.  */
+#define        SIG_SETMASK   2          /* Set the set of blocked signals.  */
+
+#endif