NEW PORT: emulators/qemu-user-static-devel: QEMU user-mode emulation

This port represents the to-be-released version of qemu-user-static for
testing prior to unleashing it upon the community at large and the package
building infrastructure. Currently, it is based on the bsd-user-rebase-3.1
branch that moves the base qemu version of this work forward.

The main highlight of the update to 3.1 is initial riscv64 bsd-user support,
submitted by Embecosm.

This version of the port is also notably no longer based on the master port,
qemu-sbruno, but repocopied from it due to reusing a good portion of it. As
such, it's been severely reduced to eliminate all of the bits not relevant
to building bsd-user/ (including the various port options), so much of the
diff is eliminating the option-enabled checks and combining them all into a
single CONFIGURE_ARGS/MAKE_ARGS, along with some additional --disable-flags
for things that we certainly don't need.

The python2.7 version restriction has been dropped as qemu's actually
supported py3+ since at least the 2.x version we have over in qemu-sbruno, A
follow-up commit will also drop the version restrictions in the other qemu
ports that still have it to be proactive about this stuff as Python2 reaches
EOL.

Q/A:
 * portlint: looks fine
 * testport: 11.3, -CURRENT; amd64

PR:		242253
Reviewed by:	koobs (ports)
Approved by:	koobs (ports)

5 files changed, 295 insertions, 0 deletions

diff --git a/emulators/qemu-user-static-devel/Makefile b/emulators/qemu-user-static-devel/Makefile
new file mode 100644
index 000000000000..99491205f845
--- /dev/null
+++ b/emulators/qemu-user-static-devel/Makefile
@@ -0,0 +1,91 @@
+# $FreeBSD$
+
+PORTNAME=	qemu
+PORTVERSION=	3.1.0
+CATEGORIES=	emulators
+PKGNAMESUFFIX=	-user-static-devel
+DIST_SUBDIR=	qemu/${PORTVERSION}
+
+MAINTAINER=	emulation@FreeBSD.org
+COMMENT=	QEMU CPU Emulator (github bsd-user branch)
+
+LICENSE=	GPLv2
+LICENSE_FILE=	${WRKSRC}/COPYING
+
+ONLY_FOR_ARCHS=		amd64 powerpc powerpc64
+CONFLICTS_INSTALL=	qemu-user-static-[0-9]*
+
+USES=		bison compiler:c11 gmake perl5 pkgconfig python:build
+USE_GITHUB=	yes
+GH_TUPLE=	seanbruno:qemu-bsd-user:0337421f238	\
+		qemu:keycodemapdb:10739aa:keycodemapdb/ui/keycodemapdb
+HAS_CONFIGURE=	yes
+USE_PERL5=	build
+MAKE_ENV+=	BSD_MAKE="${MAKE}" V=1
+
+USE_RC_SUBR=	qemu_user_static
+SUB_LIST=	NAME=qemu_user_static
+
+# When static linking we have a build dependency on libglib-2.0.a, otherwise
+# we use glib20 in the usual way (shared-lib runtime dependency).
+BUILD_DEPENDS+=	${LOCALBASE}/lib/libglib-2.0.a:devel/glib20
+
+.include <bsd.port.pre.mk>
+
+CONFIGURE_ARGS+=	--localstatedir=/var
+CONFIGURE_ARGS+=	--extra-ldflags=-L${LOCALBASE}/lib
+CONFIGURE_ARGS+=	--extra-cflags=-I${LOCALBASE}/include
+CONFIGURE_ARGS+=	--disable-libssh2
+
+QEMU_TARGETS=		i386-bsd-user sparc-bsd-user arm-bsd-user mips-bsd-user mipsel-bsd-user ppc-bsd-user
+.if ${ARCH} == "amd64"
+QEMU_TARGETS+=		x86_64-bsd-user riscv64-bsd-user sparc64-bsd-user mips64-bsd-user mips64el-bsd-user ppc64-bsd-user aarch64-bsd-user
+PLIST_SUB+=	64BIT=""
+.else
+PLIST_SUB+=	64BIT="@comment "
+.endif
+CONFIGURE_ARGS+=	--target-list=${QEMU_TARGETS:ts,}
+
+SSP_CFLAGS?=	-fstack-protector # XXX -strong crashes qemu-user-static
+WITHOUT_CPU_CFLAGS=yes	#to avoid problems with register allocation
+CFLAGS:=	${CFLAGS:C/-fno-tree-vrp//}
+CFLAGS+=	-Wno-address-of-packed-member
+CFLAGS+=	-D_WANT_SEMUN
+CONFIGURE_ARGS+=	--prefix=${PREFIX} --cc=${CC} --enable-docs \
+	--disable-linux-user --disable-linux-aio \
+	--disable-kvm --disable-xen \
+	--smbd=${LOCALBASE}/sbin/smbd \
+	--enable-debug \
+	--enable-debug-info \
+	--static \
+	--python=${PYTHON_CMD} \
+	--disable-sdl --disable-gtk --disable-vte --disable-gnutls --disable-vnc \
+	--disable-curl --disable-opengl --disable-usb-redir --disable-pcap \
+	--disable-docs --disable-tools --disable-system --disable-guest-agent \
+	--extra-cflags=-I${WRKSRC}\ -I${LOCALBASE}/include\ -DPREFIX=\\\"\"${PREFIX}\\\"\"
+
+QEMU_ARCH=	${ARCH:C/amd64/x86_64/:C/powerpc/ppc/}
+MAKE_ARGS+=	ARCH=${QEMU_ARCH}
+
+post-patch:
+	@${REINPLACE_CMD} -E \
+		-e "s|^(CFLAGS=).*|\1${CFLAGS} -fno-strict-aliasing|" \
+		-e "s|^(LDFLAGS=).*|\1${LDFLAGS}|" \
+		${WRKSRC}/Makefile.target
+	@${REINPLACE_CMD} -E \
+		-e "s|^(CFLAGS=).*|\1${CFLAGS} -fno-strict-aliasing -I.|" \
+		-e "s|^(LDFLAGS=).*|\1${LDFLAGS}|" \
+		${WRKSRC}/Makefile
+
+post-install:
+	@${MV} ${STAGEDIR}${PREFIX}/etc/rc.d ${WRKDIR}
+	@${RM} -r ${STAGEDIR}${PREFIX}/etc
+	@${MKDIR} ${STAGEDIR}${PREFIX}/etc
+	@${MV} ${WRKDIR}/rc.d ${STAGEDIR}${PREFIX}/etc
+	@${RM} -r ${STAGEDIR}${PREFIX}/man
+	@${RM} -r ${STAGEDIR}${DATADIR}
+	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/qemu-*
+	@(cd ${STAGEDIR}${PREFIX}/bin && \
+		for i in qemu-*; do ${MV} -i $$i $$i-static; done)
+
+.include <bsd.port.post.mk>
diff --git a/emulators/qemu-user-static-devel/distinfo b/emulators/qemu-user-static-devel/distinfo
new file mode 100644
index 000000000000..17550974da8a
--- /dev/null
+++ b/emulators/qemu-user-static-devel/distinfo
@@ -0,0 +1,5 @@
+TIMESTAMP = 1574823953
+SHA256 (qemu/3.1.0/seanbruno-qemu-bsd-user-3.1.0-0337421f238_GH0.tar.gz) = 7ae7340a2b99e24e0d85b8d632ecef41ddd3ef76382af4dbe6dab082d3c4d16a
+SIZE (qemu/3.1.0/seanbruno-qemu-bsd-user-3.1.0-0337421f238_GH0.tar.gz) = 16903184
+SHA256 (qemu/3.1.0/qemu-keycodemapdb-10739aa_GH0.tar.gz) = ae43fb1e2b07b78be88a7882306b6e71383eb77472a35d7d78fed21e345d134a
+SIZE (qemu/3.1.0/qemu-keycodemapdb-10739aa_GH0.tar.gz) = 47895
diff --git a/emulators/qemu-user-static-devel/files/qemu_user_static.in b/emulators/qemu-user-static-devel/files/qemu_user_static.in
new file mode 100644
index 000000000000..4022421f8963
--- /dev/null
+++ b/emulators/qemu-user-static-devel/files/qemu_user_static.in
@@ -0,0 +1,164 @@
+#!/bin/sh
+#
+# $FreeBSD$
+#
+
+# PROVIDE: %%NAME%%
+# REQUIRE: LOGIN
+# KEYWORD: shutdown
+
+# Add the following lines to /etc/rc.conf to enable `%%NAME%%':
+#
+# %%NAME%%_enable="YES"
+#
+
+. /etc/rc.subr
+
+name=%%NAME%%
+rcvar=%%NAME%%_enable
+
+# read configuration and set defaults
+load_rc_config "$name"
+
+: ${%%NAME%%_enable:="NO"}
+
+BINMISCCTL=/usr/sbin/binmiscctl
+QEMU_DIR=%%PREFIX%%/bin
+QEMU_PREFIX=qemu-
+QEMU_SUFFIX=-static
+
+start_cmd=%%NAME%%_start
+stop_cmd=%%NAME%%_stop
+extra_commands=list
+list_cmd="${BINMISCCTL} list"
+
+%%NAME%%_start()
+{
+	# register arm interpreter styled 'arm'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}arm${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add arm --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00" \
+			--mask  "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register armv6 interpreter styled 'arm'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}arm${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add armv6 --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00" \
+			--mask  "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register armv7 interpreter styled 'arm'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}arm${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add armv7 --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00" \
+			--mask  "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register aarch64 interpreter styled 'aarch64'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}aarch64${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add aarch64 --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00" \
+			--mask  "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register mips interpreter styled 'mips'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}mips${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add mips --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08" \
+			--mask "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register mipsle interpreter styled 'mipsel'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}mipsel${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add mipsel --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00" \
+			--mask "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register mips64 interpreter styled 'mips64'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}mips64${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add mips64 --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08" \
+			--mask  "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register powerpc interpreter styled 'ppc'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}ppc${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add powerpc --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x14" \
+			--mask "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register powerpc64 interpreter styled 'ppc64'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}ppc64${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add powerpc64 --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15" \
+			--mask "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register riscv64 interpreter styled 'riscv64'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}riscv64${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add riscv64 --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xf3\x00" \
+			--mask "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+	# register sparc64 interpreter styled 'sparc64'
+	interpreter=${QEMU_DIR}/${QEMU_PREFIX}sparc64${QEMU_SUFFIX}
+	if [ -x "${interpreter}" ]; then
+		${BINMISCCTL} add sparc64 --interpreter "${interpreter}" \
+			--magic "\x7f\x45\x4c\x46\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2b" \
+			--mask "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff" \
+			--size 20 --set-enabled
+	else
+		echo "$0: interpreter ${interpreter} not found, cannot register."
+	fi
+}
+
+%%NAME%%_stop()
+{
+	${BINMISCCTL} remove arm
+	${BINMISCCTL} remove armv6
+	${BINMISCCTL} remove armv7
+	${BINMISCCTL} remove aarch64
+	${BINMISCCTL} remove mips
+	${BINMISCCTL} remove mips64
+	${BINMISCCTL} remove mipsel
+	${BINMISCCTL} remove powerpc
+	${BINMISCCTL} remove powerpc64
+	${BINMISCCTL} remove riscv64
+	${BINMISCCTL} remove sparc64
+}
+
+run_rc_command "$1"
diff --git a/emulators/qemu-user-static-devel/pkg-descr b/emulators/qemu-user-static-devel/pkg-descr
new file mode 100644
index 000000000000..7bfc44d21531
--- /dev/null
+++ b/emulators/qemu-user-static-devel/pkg-descr
@@ -0,0 +1,22 @@
+QEMU is a FAST! processor emulator using dynamic translation to achieve
+good emulation speed.
+QEMU has two operating modes:
+
+    * Full system emulation. In this mode, QEMU emulates a full system
+(for example a PC), including a processor and various peripherials.
+It can be used to launch different Operating Systems without rebooting
+the PC or to debug system code.
+    * User mode emulation (Linux host only). In this mode, QEMU can launch
+Linux processes compiled for one CPU on another CPU. It can be used to
+launch the Wine Windows API emulator or to ease cross-compilation and
+cross-debugging.
+
+As QEMU requires no host kernel patches to run, it is very safe and easy to use.
+
+This port builds static bsd-user targets named like qemu-mips-static. While
+still being experimental, people have already built many armv6/mips/mips64 ports
+using these and, e.g., poudriere.  Some notes are also here:
+
+	http://wiki.freebsd.org/QemuUserModeHowTo
+
+WWW: http://wiki.qemu.org/Main_Page
diff --git a/emulators/qemu-user-static-devel/pkg-plist b/emulators/qemu-user-static-devel/pkg-plist
new file mode 100644
index 000000000000..4d2d53891d55
--- /dev/null
+++ b/emulators/qemu-user-static-devel/pkg-plist
@@ -0,0 +1,13 @@
+%%64BIT%%bin/qemu-aarch64-static
+bin/qemu-arm-static
+bin/qemu-i386-static
+bin/qemu-mips-static
+%%64BIT%%bin/qemu-mips64-static
+%%64BIT%%bin/qemu-mips64el-static
+bin/qemu-mipsel-static
+bin/qemu-ppc-static
+%%64BIT%%bin/qemu-ppc64-static
+%%64BIT%%bin/qemu-riscv64-static
+bin/qemu-sparc-static
+%%64BIT%%bin/qemu-sparc64-static
+%%64BIT%%bin/qemu-x86_64-static