[PATCH v2] Nokia RX-51: Add automated test for running RX-51 build in qemu

["Pali Rohár" <pali@kernel.org>]

This patch contains test/nokia_rx51_test.sh script which automatically
download and compile all needed tools in local temporary directory to
generate a simple MTD images for booting Maemo kernel image by U-Boot from
RAM, eMMC and OneNAND. MTD images are then run in virtual n900 machine
provided by qemu-linaro project.

This script does not need any special privileges, so it can be run as
non-root nobody user.

It can be used to check that U-Boot for Nokia N900 is not broken and can be
successfully booted in emulator.

Script is registered to .azure-pipelines.yml, .gitlab-ci.yml and
.travis.yml so it would be automatically run on those CI services.

Signed-off-by: Pali Roh?r <pali@kernel.org>
---
Changes in v2:
* Fix apt dependences for Travis CI
* Move definition of Travis job into own section
* Add definition for Azure and Gitlab CI services
* Add script to MAINTAINERS file
* Build U-Boot binary in test script too
* Show error message when some dependency for script is missing
* Fix addresses for booting kernel from OneNAND
* Do all stuff in nokia_rx51_tmp temporary directory
* Use upstream mformat (from mtools) for generating FAT32 MBR filesystems
  (instead of mkfs.fat from dosfstools with custom patches)
* Show more verbose log messages
* Do not use sudo, instead run parts of script under fakeroot
  (fakeroot just run binary with own LD_PRELOAD library which emulates
   mknod() function for later usage by stat() function)
* So script can be now run as non-root nobody user and it put all stuff
  in nokia_rx51_tmp temporary directory, so can be run locally without
  any issue.
---
 .azure-pipelines.yml         |   7 +
 .gitlab-ci.yml               |   6 +
 .travis.yml                  |   7 +
 board/nokia/rx51/MAINTAINERS |   1 +
 test/nokia_rx51_test.sh      | 262 +++++++++++++++++++++++++++++++++++
 5 files changed, 283 insertions(+)
 create mode 100755 test/nokia_rx51_test.sh

diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index d3e7b4dd02..a812f7f906 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -151,6 +151,13 @@ jobs:
           # seems to hang forever with pre-configured "container" environment
           docker run -v $PWD:$(work_dir) $(ci_runner_image) /bin/bash $(work_dir)/build.sh
 
+  - job: nokia_rx51_test
+    displayName: 'Run tests for Nokia RX-51 (aka N900)'
+    pool:
+      vmImage: $(ubuntu_vm)
+    steps:
+      - script: test/nokia_rx51_test.sh
+
   - job: test_py
     displayName: 'test.py'
     pool:
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 08bdf81e74..678f4323a0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -170,6 +170,12 @@ Run binman, buildman, dtoc, Kconfig and patman testsuites:
       ./tools/patman/patman --test;
       make testconfig
 
+Run tests for Nokia RX-51 (aka N900):
+  tags: [ 'all' ]
+  stage: testsuites
+  script:
+    - test/nokia_rx51_test.sh
+
 # Test sandbox with test.py
 sandbox test.py:
   tags: [ 'all' ]
diff --git a/.travis.yml b/.travis.yml
index 82e3b91523..b32555d89f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,6 +49,8 @@ addons:
     - mtools
     - openssl
     - sbsigntool
+    - fakeroot
+    - mtd-utils
 
 install:
  # Clone uboot-test-hooks
@@ -491,6 +493,11 @@ matrix:
       script:
         - make tools-only_config envtools -j$(nproc)
 
+    - name: "Run tests for Nokia RX-51 (aka N900)"
+      script:
+        - export PATH=~/.buildman-toolchains/gcc-9.2.0-nolibc/arm-linux-gnueabi/bin/:$PATH
+        - test/nokia_rx51_test.sh
+
     # test/py
     - name: "test/py sandbox"
       env:
diff --git a/board/nokia/rx51/MAINTAINERS b/board/nokia/rx51/MAINTAINERS
index f2a712620b..58b16bf9a9 100644
--- a/board/nokia/rx51/MAINTAINERS
+++ b/board/nokia/rx51/MAINTAINERS
@@ -5,3 +5,4 @@ F:	board/nokia/rx51/
 F:	include/configs/nokia_rx51.h
 F:	configs/nokia_rx51_defconfig
 F:	doc/README.nokia_rx51
+F:	test/nokia_rx51_test.sh
diff --git a/test/nokia_rx51_test.sh b/test/nokia_rx51_test.sh
new file mode 100755
index 0000000000..a5b6a9d565
--- /dev/null
+++ b/test/nokia_rx51_test.sh
@@ -0,0 +1,262 @@
+#!/bin/sh -e
+# SPDX-License-Identifier: GPL-2.0+
+# (C) 2020 Pali Roh?r <pali@kernel.org>
+
+# External tools needed for this test:
+echo '
+	wget
+	git
+	truncate
+	tar
+	dpkg
+	dd
+	make
+	gcc
+	arm-linux-gnueabi-gcc
+	fakeroot		(homepage http://fakeroot-ng.lingnu.com/)
+	mcopy			(from mtools, homepage http://www.gnu.org/software/mtools/)
+	mformat			(from mtools, homepage http://www.gnu.org/software/mtools/)
+	/usr/sbin/mkfs.ubifs	(from mtd-utils, homepage http://www.linux-mtd.infradead.org/)
+	/usr/sbin/ubinize	(from mtd-utils, homepage http://www.linux-mtd.infradead.org/)
+' | while read tool info; do
+	if test -z "$tool"; then continue; fi
+	if ! which $tool 1>/dev/null 2>&1; then
+		echo "Tool $tool was not found and is required to run this test"
+		echo "First install $tool $info"
+		exit 1
+	fi
+done || exit 1
+
+echo
+echo "============================================================"
+echo "========== Compiling U-Boot for Nokia RX-51 board =========="
+echo "============================================================"
+echo
+
+# First compile u-boot.bin binary for Nokia RX-51 board
+make nokia_rx51_config
+make -j4 u-boot.bin ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-
+
+# And then do all stuff in temporary directory
+mkdir -p nokia_rx51_tmp
+cd nokia_rx51_tmp
+
+test -f mkimage || ln -s ../tools/mkimage .
+test -f u-boot.bin || ln -s ../u-boot.bin .
+
+echo
+echo "=========================================================================="
+echo "========== Downloading and compiling qemu from qemu-linaro fork =========="
+echo "=========================================================================="
+echo
+
+# Download and compile linaro version qemu which has support for n900 machine
+# Last working commit is 8f8d8e0796efe1a6f34cdd83fb798f3c41217ec1
+if ! test -f qemu-system-arm; then
+	test -d qemu-linaro || git clone https://git.linaro.org/qemu/qemu-linaro.git
+	cd qemu-linaro
+	git checkout 8f8d8e0796efe1a6f34cdd83fb798f3c41217ec1
+	./configure --enable-system --target-list=arm-softmmu --disable-sdl --disable-gtk --disable-curses --audio-drv-list= --audio-card-list= --disable-werror --disable-xen --disable-xen-pci-passthrough --disable-brlapi --disable-vnc --disable-curl --disable-slirp --disable-kvm --disable-user --disable-linux-user --disable-bsd-user --disable-guest-base --disable-uuid --disable-vde --disable-linux-aio --disable-cap-ng --disable-attr --disable-blobs --disable-docs --disable-spice --disable-libiscsi --disable-smartcard-nss --disable-usb-redir --disable-guest-agent --disable-seccomp --disable-glusterfs --disable-nptl --disable-fdt
+	make -j4
+	cd ..
+	ln -s qemu-linaro/arm-softmmu/qemu-system-arm .
+fi
+
+echo
+echo "==================================================="
+echo "========== Downloading external binaries =========="
+echo "==================================================="
+echo
+
+# Download qflasher and nolo images
+# This is proprietary qemu flasher tool with first stage images, but license allows non-commercial redistribution
+wget -c http://repository.maemo.org/qemu-n900/qemu-n900.tar.gz
+tar -xf qemu-n900.tar.gz
+
+# Download Maemo script u-boot-gen-combined
+if ! test -f u-boot-gen-combined; then
+	test -d u-boot-maemo || git clone https://github.com/pali/u-boot-maemo.git
+	chmod +x u-boot-maemo/debian/u-boot-gen-combined
+	ln -s u-boot-maemo/debian/u-boot-gen-combined .
+fi
+
+# Download Maemo fiasco kernel
+wget -c http://repository.maemo.org/pool/maemo5.0/free/k/kernel/kernel_2.6.28-20103103+0m5_armel.deb
+dpkg -x kernel_2.6.28-20103103+0m5_armel.deb kernel_2.6.28
+
+# Download Maemo libc
+wget -c http://repository.maemo.org/pool/maemo5.0/free/g/glibc/libc6_2.5.1-1eglibc27+0m5_armel.deb
+dpkg -x libc6_2.5.1-1eglibc27+0m5_armel.deb libc6_2.5.1
+
+# Download Maemo busybox
+wget -c http://repository.maemo.org/pool/maemo5.0/free/b/busybox/busybox_1.10.2.legal-1osso30+0m5_armel.deb
+dpkg -x busybox_1.10.2.legal-1osso30+0m5_armel.deb busybox_1.10.2
+
+echo
+echo "======================================="
+echo "========== Generating images =========="
+echo "======================================="
+echo
+
+# Generate rootfs directory
+mkdir -p rootfs
+mkdir -p rootfs/dev/
+mkdir -p rootfs/bin/
+mkdir -p rootfs/sbin/
+mkdir -p rootfs/lib/
+cp -a busybox_1.10.2/bin/busybox rootfs/bin/
+cp -a libc6_2.5.1/lib/ld-linux.so.3 rootfs/lib/
+cp -a libc6_2.5.1/lib/ld-2.5.so rootfs/lib/
+cp -a libc6_2.5.1/lib/libc.so.6 rootfs/lib/
+cp -a libc6_2.5.1/lib/libc-2.5.so rootfs/lib/
+cp -a libc6_2.5.1/lib/libcrypt.so.1 rootfs/lib/
+cp -a libc6_2.5.1/lib/libcrypt-2.5.so rootfs/lib/
+test -f rootfs/bin/sh || ln -sf busybox rootfs/bin/sh
+test -f rootfs/sbin/poweroff || ln -sf ../bin/busybox rootfs/sbin/poweroff
+cat > rootfs/sbin/preinit << EOF
+#!/bin/sh
+echo
+echo "Successfully booted"
+echo
+/sbin/poweroff -f
+EOF
+chmod +x rootfs/sbin/preinit
+
+# Generate ubi config file for ubi rootfs image
+cat > ubi.ini << EOF
+[rootfs]
+mode=ubi
+image=ubifs.img
+vol_id=0
+vol_size=160MiB
+vol_type=dynamic
+vol_name=rootfs
+vol_alignment=1
+vol_flags=autoresize
+EOF
+
+# Generate ubi rootfs image from rootfs directory
+# NOTE: Character device on host filesystem can be created only by root
+#       But we do not need it on host filesystem, just in ubifs image
+#       So run mknod and mkfs.ubifs commands under fakeroot program
+#       which via LD_PRELOAD simulate mknod() and stat() functions
+#       so mkfs.ubifs will see dev/console as character device and
+#       put it correctly as character device into final ubifs image
+#       Therefore we can run whole script as non-root nobody user
+fakeroot sh -c '
+	rm -f rootfs/dev/console;
+	mknod rootfs/dev/console c 5 1;
+	/usr/sbin/mkfs.ubifs -m 2048 -e 129024 -c 2047 -r rootfs ubifs.img;
+'
+/usr/sbin/ubinize -o ubi.img -p 128KiB -m 2048 -s 512 ubi.ini
+
+# Generate bootmenu for eMMC booting
+cat > bootmenu_emmc << EOF
+setenv bootmenu_0 'uImage-2.6.28-omap1 from eMMC=setenv mmcnum 1; setenv mmcpart 1; setenv mmctype fat; setenv bootargs; setenv setup_omap_atag 1; setenv mmckernfile uImage-2.6.28-omap1; run trymmckernboot';
+setenv bootmenu_1;
+setenv bootmenu_delay 1;
+setenv bootdelay 1;
+EOF
+./mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n bootmenu -d bootmenu_emmc bootmenu_emmc.scr
+
+# Generate bootmenu for OneNAND booting
+cat > bootmenu_nand << EOF
+setenv bootmenu_0 'uImage-2.6.28-omap1 from OneNAND=mtd read initfs \${kernaddr}; setenv bootargs; setenv setup_omap_atag 1; bootm \${kernaddr}';
+setenv bootmenu_1;
+setenv bootmenu_delay 1;
+setenv bootdelay 1;
+EOF
+./mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n bootmenu -d bootmenu_nand bootmenu_nand.scr
+
+# Generate combined image from u-boot and Maemo fiasco kernel
+dd if=kernel_2.6.28/boot/zImage-2.6.28-20103103+0m5.fiasco of=zImage-2.6.28-omap1 skip=95 bs=1
+./mkimage -A arm -O linux -T kernel -C none -a 80008000 -e 80008000 -n zImage-2.6.28-omap1 -d zImage-2.6.28-omap1 uImage-2.6.28-omap1
+./u-boot-gen-combined u-boot.bin uImage-2.6.28-omap1 combined.bin
+
+# Generate combined hack image from u-boot and Maemo fiasco kernel (kernel starts@2MB offset and qflasher puts 2kB header before supplied image)
+cp u-boot.bin combined_hack.bin
+dd if=uImage-2.6.28-omap1 of=combined_hack.bin bs=1024 seek=$((2048-2))
+
+# Generate FAT32 eMMC image for eMMC booting
+truncate -s 50MiB emmc_emmc.img
+mformat -m 0xf8 -F -h 4 -s 16 -c 1 -t $((50*1024*1024/(4*16*512))) :: -i emmc_emmc.img
+mcopy uImage-2.6.28-omap1 ::/uImage-2.6.28-omap1 -i emmc_emmc.img
+mcopy bootmenu_emmc.scr ::/bootmenu.scr -i emmc_emmc.img
+
+# Generate FAT32 eMMC image for OneNAND booting
+truncate -s 50MiB emmc_nand.img
+mformat -m 0xf8 -F -h 4 -s 16 -c 1 -t $((50*1024*1024/(4*16*512))) :: -i emmc_nand.img
+mcopy bootmenu_nand.scr ::/bootmenu.scr -i emmc_nand.img
+
+# Generate MTD image for RAM booting from bootloader nolo images, compiled image and rootfs image
+rm -f mtd_ram.img
+./qflasher -v -x xloader-qemu.bin -s secondary-qemu.bin -k combined.bin -r ubi.img -m rx51 -o mtd_ram.img
+
+# Generate MTD image for eMMC booting from bootloader nolo images, u-boot image and rootfs image
+rm -f mtd_emmc.img
+./qflasher -v -x xloader-qemu.bin -s secondary-qemu.bin -k u-boot.bin -r ubi.img -m rx51 -o mtd_emmc.img
+
+# Generate MTD image for OneNAND booting from bootloader nolo images, combined hacked image and rootfs image
+# Kernel image is put into initfs area, but qflasher reject to copy kernel image into initfs area because it does not have initfs signature
+# This is hack to workaround this problem, tell qflasher that kernel area for u-boot is bigger and put big combined hacked image (u-boot + kernel with correct offset)
+rm -f mtd_nand.img
+./qflasher -v -x xloader-qemu.bin -s secondary-qemu.bin -k combined_hack.bin -r ubi.img -m rx51 -p k=4094,i=2 -o mtd_nand.img
+
+echo
+echo "======================================================"
+echo "========== Running test images in n900 qemu =========="
+echo "======================================================"
+echo
+
+# Run MTD image in qemu and wait for 300s if kernel from RAM is correctly booted
+rm -f qemu_ram.log
+./qemu-system-arm -M n900 -mtdblock mtd_ram.img -serial /dev/stdout -display none > qemu_ram.log &
+qemu_pid=$!
+tail -F qemu_ram.log &
+tail_pid=$!
+{ sleep 300 || true; kill -9 $qemu_pid $tail_pid 2>/dev/null || true; } &
+sleep_pid=$!
+wait $qemu_pid || true
+kill -9 $tail_pid $sleep_pid 2>/dev/null || true
+
+# Run MTD image in qemu and wait for 300s if kernel from eMMC is correctly booted
+rm -f qemu_emmc.log
+./qemu-system-arm -M n900 -mtdblock mtd_emmc.img -sd emmc_emmc.img -serial /dev/stdout -display none > qemu_emmc.log &
+qemu_pid=$!
+tail -F qemu_emmc.log &
+tail_pid=$!
+{ sleep 300 || true; kill -9 $qemu_pid $tail_pid 2>/dev/null || true; } &
+sleep_pid=$!
+wait $qemu_pid || true
+kill -9 $tail_pid $sleep_pid 2>/dev/null || true
+
+# Run MTD image in qemu and wait for 300s if kernel from OneNAND is correctly booted
+rm -f qemu_nand.log
+./qemu-system-arm -M n900 -mtdblock mtd_nand.img -sd emmc_nand.img -serial /dev/stdout -display none > qemu_nand.log &
+qemu_pid=$!
+tail -F qemu_nand.log &
+tail_pid=$!
+{ sleep 300 || true; kill -9 $qemu_pid $tail_pid 2>/dev/null || true; } &
+sleep_pid=$!
+wait $qemu_pid || true
+kill -9 $tail_pid $sleep_pid 2>/dev/null || true
+
+echo
+echo "============================="
+echo "========== Results =========="
+echo "============================="
+echo
+
+if grep -q 'Successfully booted' qemu_ram.log; then echo "Kernel was successfully booted from RAM"; else echo "Failed to boot kernel from RAM"; fi
+if grep -q 'Successfully booted' qemu_emmc.log; then echo "Kernel was successfully booted from eMMC"; else echo "Failed to boot kernel from eMMC"; fi
+if grep -q 'Successfully booted' qemu_nand.log; then echo "Kernel was successfully booted from OneNAND"; else echo "Failed to boot kernel from OneNAND"; fi
+
+echo
+
+if grep -q 'Successfully booted' qemu_ram.log && grep -q 'Successfully booted' qemu_emmc.log && grep -q 'Successfully booted' qemu_nand.log; then
+	echo "All tests passed"
+	exit 0
+else
+	echo "Some tests failed"
+	exit 1
+fi
-- 
2.20.1