X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Flinux%2Fsignal.h;h=d80259afb9e5f1b6853650b2656bd01d83f9ac66;hb=b56111f481e16510558a892d5d56cb90cadd96c0;hp=92557bbce7e7b9a3d9c6c6ed4c4d4f54ff7ff9e5;hpb=7a78d9439ae9515a8ed2b97c267e54da92f2def0;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/linux/signal.h b/include/linux/signal.h
index 92557bbce7e7..d80259afb9e5 100644
--- 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.
  */