Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android

[firefly-linux-kernel-4.4.55.git] / include / linux / signal.h

diff --git a/include/linux/signal.h b/include/linux/signal.h
index 92557bbce7e7b9a3d9c6c6ed4c4d4f54ff7ff9e5..d80259afb9e5f1b6853650b2656bd01d83f9ac66 100644 (file)
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -28,6 +28,21 @@ struct sigpending {
        sigset_t signal;
 };
 
+#ifndef HAVE_ARCH_COPY_SIGINFO
+
+#include <linux/string.h>
+
+static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
+{
+       if (from->si_code < 0)
+               memcpy(to, from, sizeof(*to));
+       else
+               /* _sigchld is currently the largest know union member */
+               memcpy(to, from, __ARCH_SI_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
+}
+
+#endif
+
 /*
  * Define some primitives to manipulate sigset_t.
  */