[PATCH] asm/signal.h unification

New file - asm-generic/signal.h.  Contains declarations of
__sighandler_t, __sigrestore_t, SIG_DFL, SIG_IGN, SIG_ERR and default
definitions of SIG_BLOCK, SIG_UNBLOCK and SIG_SETMASK.

asm-*/signal.h switched to including it.  The only exception is
asm-parisc/signal.h that wants its own declaration of __sighandler_t;
that one is left as-is.

asm-ppc64/signal.h required one more thing - unlike everybody else it
used __sigrestorer_t instead of usual __sigrestore_t.  PPC64 switched to
common spelling.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 21 insertions, 0 deletions

diff --git a/include/asm-generic/signal.h b/include/asm-generic/signal.h
new file mode 100644
index 000000000000..9418d6e9b8cd
--- /dev/null
+++ b/include/asm-generic/signal.h
@@ -0,0 +1,21 @@
+#ifndef SIG_BLOCK
+#define SIG_BLOCK          0    /* for blocking signals */
+#endif
+#ifndef SIG_UNBLOCK
+#define SIG_UNBLOCK        1    /* for unblocking signals */
+#endif
+#ifndef SIG_SETMASK
+#define SIG_SETMASK        2    /* for setting the signal mask */
+#endif
+
+#ifndef __ASSEMBLY__
+typedef void __signalfn_t(int);
+typedef __signalfn_t __user *__sighandler_t;
+
+typedef void __restorefn_t(void);
+typedef __restorefn_t __user *__sigrestore_t;
+
+#define SIG_DFL ((__force __sighandler_t)0)     /* default signal handling */
+#define SIG_IGN ((__force __sighandler_t)1)     /* ignore signal */
+#define SIG_ERR ((__force __sighandler_t)-1)    /* error return from signal */
+#endif