commit d11b13f195ba5f3755ba07417e4bb2872ec4d337
Author: Kamil Rytarowski <n54@gmx.com>
Date:   Wed Sep 23 17:35:16 2020 +0200

    Add gdbserver

diff --git a/external/gpl3/gdb/bin/Makefile b/external/gpl3/gdb/bin/Makefile
index 00323be6f6f4..2c842b43b048 100644
--- a/external/gpl3/gdb/bin/Makefile
+++ b/external/gpl3/gdb/bin/Makefile
@@ -9,7 +9,9 @@ SUBDIR+=  gdb
 SUBDIR+= gdbtui
 .endif
 
-#SUBDIR+= gdbserver
+.if ${MACHINE} == "amd64"
+SUBDIR+= gdbserver
+.endif
 
 .if ${MACHINE_ARCH} == powerpc || ${MACHINE_ARCH} == powerpcle || \
     ${MACHINE_ARCH} == powerpc64
diff --git a/external/gpl3/gdb/bin/gdbserver/Makefile b/external/gpl3/gdb/bin/gdbserver/Makefile
new file mode 100644
index 000000000000..149ac28bb695
--- /dev/null
+++ b/external/gpl3/gdb/bin/gdbserver/Makefile
@@ -0,0 +1,52 @@
+#	$NetBSD: Makefile,v 1.18 2020/09/17 20:26:22 christos Exp $
+
+NOCTF=
+NOMAN=
+.include <bsd.own.mk>
+.include "../Makefile.inc"
+
+PROG=		gdbserver
+
+SERVER_SRCS=		server.cc
+NETBSD_SRCS=		netbsd-low.cc fork-child.cc fork-inferior.c netbsd-nat.c
+ARCH_SRCS=		netbsd-${MACHINE}-low.cc ${MACHINE}.c
+SRCS=		${SERVER_SRCS} ${NETBSD_SRCS} ${ARCH_SRCS}
+CPPFLAGS+=	-I${.CURDIR} \
+		-I${.CURDIR}/../../lib/libgnulib/arch/${GDB_MACHINE_ARCH}/gnulib \
+		-I${DIST}/gdb \
+		-I${DIST}/gdbserver \
+		-I${DIST}/gdbsupport \
+		-I${DIST}/gdb/regformats \
+		-I${DIST}/gdb/config \
+		-I${DIST}/gnulib/import \
+		-I${DIST} \
+		-I${.CURDIR}/../../lib/libgdbsupport/arch/${GDB_MACHINE_ARCH} \
+		-I${.CURDIR}/../../lib/libgnulib/arch/${GDB_MACHINE_ARCH} \
+		-I${.CURDIR}/../../lib/libgnulib/arch/${GDB_MACHINE_ARCH}/gnulib/import \
+		-I${DIST}/include \
+		${GCPPFLAGS:M-D*}
+
+.include "../../Makefile.inc"
+.include <bsd.info.mk>
+
+LIBGNULIBDIR!=	     cd ${.CURDIR}/../../lib/libgnulib	   && ${PRINTOBJDIR}
+LIBGDBSUPPORTDIR!=   cd ${.CURDIR}/../../lib/libgdbsupport && ${PRINTOBJDIR}
+LIBIBERTYDIR!=	     cd ${.CURDIR}/../../lib/libiberty	   && ${PRINTOBJDIR}
+
+LDADD+= -L${LIBGDBSUPPORTDIR} -lgdbsupport \
+	-L${LIBGNULIBDIR} -lgnulib \
+	-L${LIBIBERTYDIR} -liberty
+
+DPADD+=	${LIBGDBSUPPORTDIR}/libgdbsupport.a \
+	${LIBGNULIBDIR}/libgnulib.a \
+	${LIBIBERTYDIR}/libiberty.a
+
+.include <bsd.prog.mk>
+
+# Force c++
+CWARNFLAGS.clang+=	-Wno-deprecated
+HOST_CC:=		${HOST_CXX}
+CC:=			${CXX}
+CFLAGS:=		${CXXFLAGS} -std=gnu++11 -Wno-error=stack-protector
+
+.PATH: ${DIST}/gdbserver ${DIST}/gdb/nat ${DIST}/gdb/arch