查看 qemu_run.sh

turing · 发表于 2022-6-20 17:56:42

启动qemu过程坑很多, 留下文件,方便找问题

root@turingkuang:/home/openharmony/code-v3.1.1-Release/OpenHarmony/vendor/ohemu/qemu_small_system_demo# cat qemu_run.sh
#!/bin/bash
#Licensed under the Apache License, Version 2.0 (the "License");
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an "AS IS" BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.
set -e
flash_name=flash.img
vnc="-vnc :20 -serial mon:stdio"
src_dir=out/arm_virt/qemu_small_system_demo/
bootargs=$(cat <<-END
bootargs=root=cfi-flash fstype=jffs2 rootaddr=10M rootsize=27M useraddr=37M usersize=27M
END
)
elf_file=$1
rebuild_image=$2
vnc_enable=$3
add_boot_args=$4
boot_args=$5
net_enable=$6
gdb_enable=$7
qemu_test=$8
test_file=$9
qemu_help=${10}
help_info=$(cat <<-END
Usage: qemu-run [OPTION]...
Make a qemu image($flash_name) for OHOS, and run the image in qemu according
to the options.
Options:
-f, --force rebuild ${flash_name}
-n, --net-enable enable net
-l, --local-desktop no VNC
-b, --bootargs boot_arguments additional boot arguments(-bk1=v1,k2=v2...)
-g, --gdb enable gdb for kernel
-h, --help print help info
By default, ${flash_name} will not be rebuilt if exists, and net will not
be enabled, gpu enabled and waiting for VNC connection at port 5920.
END
)
if [ "$qemu_help" = "yes" ]; then
echo "${help_info}"
exit 0
fi
if [ "$vnc_enable" = "no" ]; then
vnc=""
fi
if [ "$add_boot_args" = "yes" ]; then
bootargs+=" "${boot_args//","/" "}
fi
if [ "$gdb_enable" = "yes" ]; then
qemu_option+="-s -S"
fi
function unsupported_parameters_check(){
if [ "$qemu_test" = "test" ]; then
echo "Error: The -t|--test option is not supported !"
echo "${help_info}"
exit 1
fi
}
function make_flash(){
echo -e "\nStart making ${flash_name}..."
echo -ne "${bootargs}"'\0' > ${src_dir}/bootargs
dd if=/dev/zero of=${flash_name} bs=64M count=1
dd if=${src_dir}/OHOS_Image.bin of=${flash_name} conv=notrunc seek=0 oflag=seek_bytes
dd if=${src_dir}/bootargs of=${flash_name} conv=notrunc seek=9984k oflag=seek_bytes
dd if=${src_dir}/rootfs_jffs2.img of=${flash_name} conv=notrunc seek=10M oflag=seek_bytes
dd if=${src_dir}/userfs_jffs2.img of=${flash_name} conv=notrunc seek=37M oflag=seek_bytes
echo -e "Succeed making ${flash_name}.\n"
}
function check_mmc_tools(){
modprobe -n nbd > /dev/null 2>&1
if [ $? != 0 ]; then
echo "Failed: need kernel module 'nbd'"
exit 1
fi
type qemu-img qemu-nbd > /dev/null 2>&1
if [ $? != 0 ]; then
echo "Failed: need qemu-utils 'qemu-img' and 'qemu-nbd'"
exit 1
fi
type parted > /dev/null 2>&1
if [ $? != 0 ]; then
echo "Failed: need tool 'parted'"
exit 1
fi
}
function make_mmc(){
echo -ne "\nStart making out/smallmmc.img..."
# Create raw "disk" with 1G, 2G, 5G partitions, all type 0C (FAT32 LBA).
qemu-img create -f raw out/smallmmc.raw 8G > /dev/null
sudo losetup /dev/loop100 out/smallmmc.raw
sudo parted -s /dev/loop100 -- mklabel msdos mkpart primary fat32 2048s 1025MiB \
mkpart primary fat32 1025MiB 3073MiB mkpart primary fat32 3073MiB -1s
# Format.
sudo losetup -o 1048576 /dev/loop101 /dev/loop100
sudo losetup -o 1074790400 /dev/loop102 /dev/loop100
sudo losetup -o 3222274048 /dev/loop103 /dev/loop100
sudo mkfs.vfat /dev/loop101 > /dev/null
sudo mkfs.vfat /dev/loop102 > /dev/null
sudo mkfs.vfat /dev/loop103 > /dev/null
# Clean.
sudo losetup -d /dev/loop103
sudo losetup -d /dev/loop102
sudo losetup -d /dev/loop101
sudo losetup -d /dev/loop100
# Convert to qcow2 format.
qemu-img convert -f raw out/smallmmc.raw -O qcow2 out/smallmmc.img
rm out/smallmmc.raw
# Mount.
sudo modprobe nbd
sudo qemu-nbd --connect=/dev/nbd0 out/smallmmc.img
sudo mount /dev/nbd0p1 /mnt # 1st partition
# Copy necessary files.
sudo mkdir /mnt/data
sudo cp out/arm_virt/qemu_small_system_demo/data/line_cj.brk /mnt/data/
sudo cp out/arm_virt/qemu_small_system_demo/data/SourceHanSansSC-Regular.otf /mnt/data
# Unmount.
sudo umount /mnt
sudo qemu-nbd -d /dev/nbd0 > /dev/null
sudo modprobe -r nbd
sync out/smallmmc.img # avoid 'Failed to get "write" lock' error
echo -e "done.\n"
}
function net_config(){
echo "Network config..."
set +e
sudo modprobe tun tap
sudo ip link add br0 type bridge
sudo ip address add 10.0.2.2/24 dev br0
sudo ip link set dev br0 up
set -e
}
function start_qemu(){
net_enable=${1}
if [[ "${vnc}" == "-vnc "* ]]; then
echo -e "Waiting VNC connection on: 5920 ...(Ctrl-C exit)"
fi
if [ ${net_enable} = yes ]
then
net_config 2>/dev/null
sudo `which qemu-system-arm` -M virt,gic-version=2,secure=on -cpu cortex-a7 -smp cpus=1 -m 1G -drive \
if=pflash,file=./${flash_name},format=raw -global virtio-mmio.force-legacy=false -netdev bridge,id=net0 \
-device virtio-net-device,netdev=net0,mac=12:22:33:44:55:66 \
-device virtio-gpu-device,xres=800,yres=480 -device virtio-tablet-device ${vnc} $qemu_option \
-drive if=none,file=./out/smallmmc.img,format=qcow2,id=mmc -device virtio-blk-device,drive=mmc \
-device virtio-rng-device
else
`which qemu-system-arm` -M virt,gic-version=2,secure=on -cpu cortex-a7 -smp cpus=1 -m 1G -drive \
if=pflash,file=./${flash_name},format=raw -global virtio-mmio.force-legacy=false \
-device virtio-gpu-device,xres=800,yres=480 -device virtio-tablet-device ${vnc} $qemu_option \
-drive if=none,file=./out/smallmmc.img,format=qcow2,id=mmc -device virtio-blk-device,drive=mmc \
-device virtio-rng-device
fi
}
unsupported_parameters_check
if [ ! -f "${flash_name}" ] || [ ${rebuild_image} = yes ]; then
make_flash ${flash_name} "${bootargs}" ${src_dir}
elif [ ${add_boot_args} = yes ]; then
echo "Update bootargs..."
echo -e "${bootargs}"'\0' > ${src_dir}/bootargs
dd if=${src_dir}/bootargs of=${flash_name} conv=notrunc seek=9984k oflag=seek_bytes
fi
if [ ! -f "out/smallmmc.img" ]; then
check_mmc_tools
make_mmc
fi
start_qemu ${net_enable}

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