Index: head/devel/gdb/Makefile
===================================================================
--- head/devel/gdb/Makefile
+++ head/devel/gdb/Makefile
@@ -48,7 +48,8 @@
 		${FILESDIR}/commit-4b654465bf \
 		${FILESDIR}/commit-b30ff123fb \
 		${FILESDIR}/commit-48aeef91c2 \
-		${FILESDIR}/commit-0aa37b654c
+		${FILESDIR}/commit-0aa37b654c \
+		${FILESDIR}/commit-0335ac6d12
 LIB_DEPENDS+=	libexpat.so:textproc/expat2
 
 VER=		${PORTVERSION:S/.//g}
Index: head/devel/gdb/files/commit-0335ac6d12
===================================================================
--- head/devel/gdb/files/commit-0335ac6d12
+++ head/devel/gdb/files/commit-0335ac6d12
@@ -0,0 +1,24 @@
+commit 0335ac6d12906bfb4b48410d8a7229c21c727cf2
+Author: John Baldwin <jhb@FreeBSD.org>
+Date:   Tue Aug 15 08:04:23 2017 -0700
+
+    Fix compile on big-endian platforms in siginfo_t converter.
+    
+    gdb/ChangeLog:
+    
+            * fbsd-nat.c (fbsd_convert_siginfo): Fix compile on big-endian
+            platforms.
+
+diff --git gdb/fbsd-nat.c gdb/fbsd-nat.c
+index c89343a24f..6ba6a01a70 100644
+--- gdb/fbsd-nat.c
++++ gdb/fbsd-nat.c
+@@ -314,7 +314,7 @@ fbsd_convert_siginfo (siginfo_t *si)
+      32-bits of the pointer value.  */
+ #if _BYTE_ORDER == _BIG_ENDIAN
+   if (si->si_value.sival_int == 0)
+-    si32->si_value.sival_ptr = (uintptr_t) si->si_value.sival_ptr;
++    si32.si_value.sival_ptr = (uintptr_t) si->si_value.sival_ptr;
+   else
+     si32.si_value.sival_int = si->si_value.sival_int;
+ #else
Index: head/devel/gdb/files/kgdb/ppcfbsd-kern.c
===================================================================
--- head/devel/gdb/files/kgdb/ppcfbsd-kern.c
+++ head/devel/gdb/files/kgdb/ppcfbsd-kern.c
@@ -58,7 +58,7 @@
 
 	tdep = gdbarch_tdep (target_gdbarch());
 
-	if (target_read_memory(pcb_addr, &pcb, sizeof(pcb)) != 0)
+	if (target_read_memory(pcb_addr, (gdb_byte *)&pcb, sizeof(pcb)) != 0)
 		memset(&pcb, 0, sizeof(pcb));
 
 	/*