Linux 内核调试 二：ubuntu20.04安装qemu
一、第一种方法
使用 apt-get install qemu 命令进行安装，安装过程如下：
onlylove@ubuntu:~$ sudo apt-get install qemu
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
qemu
0 upgraded, 1 newly installed, 0 to remove and 16 not upgraded.
Need to get 0 B/15.2 kB of archives.
After this operation, 125 kB of additional disk space will be used.
Selecting previously unselected package qemu.
(Reading database ... 192884 files and directories currently installed.)
Preparing to unpack .../qemu_1%3a4.2-3ubuntu6.19_amd64.deb ...
Unpacking qemu (1:4.2-3ubuntu6.19) ...
Setting up qemu (1:4.2-3ubuntu6.19) ...
onlylove@ubuntu:~$ qemu-
安装完成以后发现在 /usr/bin 文件夹里面没有 qemu 的相关东西。
通过查找相关资料，ubuntu20.04 安装 qemu 使用如下指令：
sudo apt-get install qemu-system
二、第二种方法
通过编译官方源码安装 qemu 。
参考资料：
https://www.qemu.org/download/
https://wiki.qemu.org/Hosts/Linux
1、获取软件
方法一：
wget https://download.qemu.org/qemu-6.2.0.tar.xz
tar xvJf qemu-6.2.0.tar.xz
方法二：
git clone https://gitlab.com/qemu-project/qemu.git
2、安装环境包
1、必须软件包
sudo apt-get install git libglib2.0-dev libfdt-dev libpixman-1-dev zlib1g-dev
3、编译配置选项整理
onlylove@ubuntu:~/My/qemu/qemu-6.2.0$ ./configure --help
Using './build' as the directory for build output
Usage: configure [options] #用法：配置[选项]
Options: [defaults in brackets after descriptions] #选项[描述后括号中的默认值]
Standard options: #标准选项
--help print this message #打印此消息
--prefix=PREFIX install in PREFIX [/usr/local] #安装在 PREFIX 中
--interp-prefix=PREFIX where to find shared libraries, etc.
use %M for cpu name [/usr/gnemul/qemu-%M]
--target-list=LIST set target list (default: build all non-deprecated) #设置目标列表
Available targets: aarch64-softmmu alpha-softmmu
arm-softmmu avr-softmmu cris-softmmu hppa-softmmu
i386-softmmu m68k-softmmu microblaze-softmmu
microblazeel-softmmu mips-softmmu mips64-softmmu
mips64el-softmmu mipsel-softmmu nios2-softmmu
or1k-softmmu ppc-softmmu ppc64-softmmu
riscv32-softmmu riscv64-softmmu rx-softmmu
s390x-softmmu sh4-softmmu sh4eb-softmmu
sparc-softmmu sparc64-softmmu tricore-softmmu
x86_64-softmmu xtensa-softmmu xtensaeb-softmmu
aarch64-linux-user aarch64_be-linux-user
alpha-linux-user arm-linux-user armeb-linux-user
cris-linux-user hexagon-linux-user hppa-linux-user
i386-linux-user m68k-linux-user
microblaze-linux-user microblazeel-linux-user
mips-linux-user mips64-linux-user
mips64el-linux-user mipsel-linux-user
mipsn32-linux-user mipsn32el-linux-user
nios2-linux-user or1k-linux-user ppc-linux-user
ppc64-linux-user ppc64le-linux-user
riscv32-linux-user riscv64-linux-user
s390x-linux-user sh4-linux-user sh4eb-linux-user
sparc-linux-user sparc32plus-linux-user
sparc64-linux-user x86_64-linux-user
xtensa-linux-user xtensaeb-linux-user
Deprecated targets: ppc64abi32-linux-user
--target-list-exclude=LIST exclude a set of targets from the default target-list #从默认目标列表中排除一组目标
Advanced options (experts only): #高级选项（仅限专家）
--cross-prefix=PREFIX use PREFIX for compile tools, PREFIX can be blank [] #使用PREFIX作为编译工具，PREFIX可以为空
--cc=CC use C compiler CC [cc] #使用 C 编译器 CC
--iasl=IASL use ACPI compiler IASL [iasl] #使用 ACPI 编译器 IASL
--host-cc=CC use C compiler CC [cc] for code run at
build time #使用 C 编译器 CC 在编译时构建运行代码
--cxx=CXX use C++ compiler CXX [c++] #使用 C++ 编译器 Cxx
--objcc=OBJCC use Objective-C compiler OBJCC [cc]
--extra-cflags=CFLAGS append extra C compiler flags CFLAGS
--extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS #附加额外的 C 编译器标志 CFLAGS
--extra-ldflags=LDFLAGS append extra linker flags LDFLAGS
--cross-cc-ARCH=CC use compiler when building ARCH guest test cases #在构建ARCH客户测试用例时使用编译器
--cross-cc-flags-ARCH= use compiler flags when building ARCH guest tests
--make=MAKE use specified make [make] #使用指定 make
--python=PYTHON use specified python [/usr/bin/python3]
--sphinx-build=SPHINX use specified sphinx-build []
--meson=MESON use specified meson []
--ninja=NINJA use specified ninja []
--smbd=SMBD use specified smbd []
--with-git=GIT use specified git [git]
--with-git-submodules=update update git submodules (default if .git dir exists) #更新 git 子模块
--with-git-submodules=validate fail if git submodules are not up to date
--with-git-submodules=ignore do not update or check git submodules (default if no .git dir)
--static enable static build [no] #开启静态编译
--mandir=PATH install man pages in PATH #在 PATH 中安装手册页
--datadir=PATH install firmware in PATH/qemu #在 PATH/qemu 中安装固件
--localedir=PATH install translation in PATH/qemu
--docdir=PATH install documentation in PATH/qemu
--bindir=PATH install binaries in PATH
--libdir=PATH install libraries in PATH
--libexecdir=PATH install helper binaries in PATH
--sysconfdir=PATH install config in PATH/qemu
--localstatedir=PATH install local state in PATH (set at runtime on win32)
--firmwarepath=PATH search PATH for firmware files #在 PATH 中搜索固件
--efi-aarch64=PATH PATH of efi file to use for aarch64 VMs.
--with-suffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [qemu]
--with-pkgversion=VERS use specified string as sub-version of the package #使用指定的字符串作为包的子版本
--without-default-features default all --enable-* options to "disabled" # 默认所有 “--enable-*” 被禁止
--without-default-devices do not include any device that is not needed to #不包括启动模拟器不需要的任何设备
start the emulator (only use if you are including
desired devices in configs/devices/)
--with-devices-ARCH=NAME override default configs/devices #覆盖默认 configs/devices
--enable-debug enable common debug build options #开启通用调试选项
--enable-sanitizers enable default sanitizers
--enable-tsan enable thread sanitizer
--disable-strip disable stripping binaries
--disable-werror disable compilation abort on warning
--disable-stack-protector disable compiler-provided stack protection
--audio-drv-list=LIST set audio drivers to try if -audiodev is not used #如果没有使用-audiodev，设置音频驱动程序来尝试
--block-drv-whitelist=L Same as --block-drv-rw-whitelist=L
--block-drv-rw-whitelist=L
set block driver read-write whitelist #设置块驱动读写白名单
(by default affects only QEMU, not tools like qemu-img)
--block-drv-ro-whitelist=L
set block driver read-only whitelist
(by default affects only QEMU, not tools like qemu-img)
--enable-block-drv-whitelist-in-tools
use block whitelist also in tools instead of only QEMU #在工具中也使用块白名单，而不仅仅是QEMU
--with-trace-file=NAME Full PATH,NAME of file to store traces
Default:trace-
--cpu=CPU Build for host CPU [x86_64]
--with-coroutine=BACKEND coroutine backend. Supported options: #协同程序的后端。支持选项
ucontext, sigaltstack, windows
--enable-gcov enable test coverage analysis with gcov #使用 gcov 启用测试覆盖率分析
--with-vss-sdk=SDK-path enable Windows VSS support in QEMU Guest Agent #在QEMU Guest Agent中启用Windows VSS支持
--with-win-sdk=SDK-path path to Windows Platform SDK (to build VSS .tlb) #Windows平台SDK的路径
--tls-priority default TLS protocol/cipher priority string #默认 TLS 协议/密码（protocol/cipher）优先级字符串
--enable-gprof QEMU profiling with gprof #使用gprof分析QEMU
--enable-profiler profiler support #分析器的支持
--enable-debug-stack-usage
track the maximum stack usage of stacks created by qemu_alloc_stack #跟踪 qemu_alloc_stack 创建的堆栈的最大堆栈使用情况
--enable-plugins
enable plugins via shared library loading #通过共享库加载启用插件
--disable-containers don't use containers for cross-building #不要使用容器进行交叉构建
--gdb=GDB-path gdb to use for gdbstub tests [/usr/bin/gdb]
--enable-capstone[=CHOICE]
Whether and how to find the capstone library #是否以及如何查找 capstone 库
(choices: auto/disabled/enabled/internal/system)
--enable-cfi Control-Flow Integrity (CFI) #控制流完整性
--enable-cfi-debug Verbose errors in case of CFI violation #违反 CFI 时出现详细错误
--enable-fdt[=CHOICE] Whether and how to find the libfdt library #是否以及如何查找 libfdt 库
(choices: auto/disabled/enabled/internal/system)
--enable-fuzzing build fuzzing targets #构建模糊测试目标
--disable-install-blobs install provided firmware blobs #安装提供的固件块
--enable-malloc=CHOICE choose memory allocator to use [system] (choices:
jemalloc/system/tcmalloc) #选择要使用的内存分配器
--enable-slirp[=CHOICE] Whether and how to find the slirp library
(choices: auto/disabled/enabled/internal/system) #是否以及如何查找 slitrp 库
--enable-tcg-interpreter TCG with bytecode interpreter (slow) #带有字节码解释器的TCG
--enable-trace-backends=CHOICE
Set available tracing backends [log] (choices:
dtrace/ftrace/log/nop/simple/syslog/ust) #设置可用的跟踪后端
Optional features, enabled with --enable-FEATURE and
disabled with --disable-FEATURE, default is enabled if available
(unless built with --without-default-features):
#可选功能，使用 --enable-FEATURE 启用，使用 --disable-FEATURE 禁用，如果可用，则默认启用
alsa ALSA sound support # ALSA 声音支持
attr attr/xattr support # attr/xattr 支持
auth-pam PAM access control # PAM 访问控制
bpf eBPF support # eBPF 支持
brlapi brlapi character device driver # Brlapi字符设备驱动程序
bzip2 bzip2 support for DMG images # bzip2 对 DMG 映像的支持
cap-ng cap_ng support # cap_ng支持
cocoa Cocoa user interface (macOS only)
coreaudio CoreAudio sound support # CoreAudio声音支持
curl CURL block device driver # CURL块设备驱动程序
curses curses UI
docs Documentations build support # 文档构建支持
dsound DirectSound sound support # DirectSound 声音支持
fuse FUSE block device export # FUSE 块设备导出
fuse-lseek SEEK_HOLE/SEEK_DATA support for FUSE exports
gcrypt libgcrypt cryptography support # libgcrypt 加密支持
gettext Localization of the GTK+ user interface # GTK+ 用户界面的本地化
glusterfs Glusterfs block device driver # Glusterfs 块设备驱动程序
gnutls GNUTLS cryptography support # GNUTLS 加密支持
gtk GTK+ user interface # GTK+ 用户界面
guest-agent-msi Build MSI package for the QEMU Guest Agent # 为QEMU客户代理构建MSI包
hax HAX acceleration support # HAX 加速支持
hvf HVF acceleration support # HVF 加速支持
iconv Font glyph conversion support # 字体字形转换支持
jack JACK sound support # JACK 声音支持
kvm KVM acceleration support # KVM 加速支持
v3 v3 network backend support # v3 网络后端支持
libdaxctl libdaxctl support # libdaxctl 支持
libiscsi libiscsi userspace initiator # libiscsi用户空间启动程序
libnfs libnfs block device driver # libnfs 块设备驱动程序
libpmem libpmem support # libpmem 支持
libudev Use libudev to enumerate host devices # 使用 libudev 枚举主机设备
libusb libusb support for USB passthrough # 对 USB 直通的 libusb 支持
libxml2 libxml2 support for Parallels image format # libxml2 对 Parallels 图像格式的支持
linux-aio Linux AIO support # Linux AIO 支持
linux-io-uring Linux io_uring support # Linux io_uring支持
lzfse lzfse support for DMG images # lzfse 对 DMG 映像的支持
lzo lzo compression support # lzo 压缩支持
malloc-trim enable libc malloc_trim() for memory optimization # 启用 libc malloc_trim（） 以进行内存优化
mpath Multipath persistent reservation passthrough # 多路径持久保留直通
multiprocess Out of process device emulation support # 进程外设备仿真支持
netmap netmap network backend support # Netmap网络后端支持
nettle nettle cryptography support # nettle 加密支持
nvmm NVMM acceleration support # NVMM 加速支持
oss OSS sound support # OSS 声音支持
pa PulseAudio sound support # PulseAudio 声音支持
rbd Ceph block device driver # Ceph 块设备驱动程序
sdl SDL user interface # SDL 用户界面
sdl-image SDL Image support for icons # SDL 图像图标支持
seccomp seccomp support # seccomp支持
selinux SELinux support in qemu-nbd # SELinux 在 qemu-nbd 中的支持
smartcard CA smartcard emulation support # CA 智能卡仿真支持
snappy snappy compression support # 快速压缩支持
sparse sparse checker
spice Spice server support # Spice 服务器支持
spice-protocol Spice protocol support # Spice 协议支持
tcg TCG support # TCG 支持
u2f U2F emulation support # U2F 支持
usb-redir libusbredir support # libusbredir 支持
vde vde network backend support # vde 网络后端支持
vhost-user-blk-server
build vhost-user-blk server # 构建vhost-user-blk服务器
virglrenderer virgl rendering support # virgl 渲染支持
virtfs virtio-9p support # virtio-9p 支持
virtiofsd build virtiofs daemon (virtiofsd) # 构建virtiofs守护进程
vnc VNC server # NVC 服务
vnc-jpeg JPEG lossy compression for VNC server # VNC 服务器的 JPEG 有损压缩
vnc-png PNG compression for VNC server # VNC 服务器的 PNG 压缩
vnc-sasl SASL authentication for VNC server # VNC 服务器的 SASL 身份验证
vte vte support for the gtk UI # vte 支持 gtk 用户界面
whpx WHPX acceleration support # WHPX 加速支持
xen Xen backend support # Xen 后端支持
xen-pci-passthrough
Xen PCI passthrough support # Xen PCI 直通支持
xkbcommon xkbcommon support # xkbcommon 支持
zstd zstd compression support # zstd 压缩支持
system all system emulation targets # 所有系统仿真目标
user supported user emulation targets # 支持的用户仿真目标
linux-user all linux usermode emulation targets # 所有 Linux 用户模式仿真目标
bsd-user all BSD usermode emulation targets # 所有 BSD 用户模式仿真目标
guest-agent build the QEMU Guest Agent # 构建 QEMU 客户机代理
pie Position Independent Executables # 独立于位置的可执行文件
modules modules support (non-Windows) # 模块支持
module-upgrades try to load modules from alternate paths for upgrades # 尝试从备用路径加载模块以进行升级
debug-tcg TCG debugging (default is disabled) # TCG 调试
debug-info debugging information # 调试信息
lto Enable Link-Time Optimization. # 启用链接时间优化
safe-stack SafeStack Stack Smash Protection. Depends on # SafeStack 堆栈粉碎保护
clang/llvm >= 3.7 and requires coroutine backend ucontext.
membarrier membarrier system call (for Linux 4.14+ or Windows) # membarrier 系统调用
rdma Enable RDMA-based migration # 启用基于 RDMA 的迁移
pvrdma Enable PVRDMA support # 启用 PVRDMA 支持
vhost-net vhost-net kernel acceleration support # Vhost-net内核加速支持
vhost-vsock virtio sockets device support # virtio sockets 设备支持
vhost-scsi vhost-scsi kernel target support # vhost-scsi 内核目标支持
vhost-crypto vhost-user-crypto backend support # vhost-user-crypto后端支持
vhost-kernel vhost kernel backend support # Vhost内核后端支持
vhost-user vhost-user backend support # vhost-user后端支持
vhost-vdpa vhost-vdpa kernel backend support # Vhost-vdpa内核后端支持
live-block-migration Block migration in the main migration stream # 主迁移流中的块迁移
coroutine-pool coroutine freelist (better performance)
tpm TPM support # TPM 支持
libssh ssh block device support # ssh 块设备支持
numa libnuma support # libnuma # 支持
avx2 AVX2 optimization support # AVX2 优化支持
avx512f AVX512F optimization support # AVX512F 优化支持
replication replication support # 复制支持
opengl opengl support # opengl 支持
xfsctl xfsctl support # xfsctl 支持
qom-cast-debug cast debugging support
tools build qemu-io, qemu-nbd and qemu-img tools # 构建 qemu-io、qemu-nbd 和 qemu-img 工具
bochs bochs image format support # bochs 图像格式支持
cloop cloop image format support # Cloop 图像格式支持
dmg dmg image format support # dmg 图像格式支持
qcow1 qcow v1 image format support # qcow v1 图像格式支持
vdi vdi image format support # vdi 图像格式支持
vvfat vvfat image format support # vvfat 图像格式支持
qed qed image format support # qed 图像格式支持
parallels parallels image format support # 并行图像格式支持
crypto-afalg Linux AF_ALG crypto backend driver # Linux AF_ALG加密后端驱动程序
debug-mutex mutex debugging support # 互斥体调试支持
rng-none dummy RNG, avoid using /dev/(u)random and getrandom()
gio libgio support # libgio支持
slirp-smbd use smbd (at path --smbd=*) in slirp networking
NOTE: The object files are built at the place where configure is launched
onlylove@ubuntu:~/My/qemu/qemu-6.2.0$
4、解决异常
问题1：
onlylove@ubuntu:~/My/qemu/qemu-6.2.0$ ./configure
Using './build' as the directory for build output
ERROR: GNU make (make) not found
onlylove@ubuntu:~/My/qemu/qemu-6.2.0$
解决方法：
sudo apt-get install make
问题2：
onlylove@ubuntu:~/My/qemu/qemu-6.2.0$ ./configure > log.txt
ERROR: Cannot find Ninja
onlylove@ubuntu:~/My/qemu/qemu-6.2.0$
解决方法：
sudo apt-get install ninja-build
5、配置
命令：
./configure > log.txt
日志：
Using './build' as the directory for build output
No C++ compiler available; disabling C++ specific optional code
The Meson build system
Version: 0.59.3
Source dir: /home/onlylove/My/qemu/qemu-6.2.0
Build dir: /home/onlylove/My/qemu/qemu-6.2.0/build
Build type: native build
Project name: qemu
Project version: 6.2.0
C compiler for the host machine: cc -m64 -mcx16 (gcc 9.4.0 "cc (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0")
C linker for the host machine: cc -m64 -mcx16 ld.bfd 2.34
Host machine cpu family: x86_64
Host machine cpu: x86_64
Program sh found: YES (/usr/bin/sh)
Program python3 found: YES (/usr/bin/python3)
WARNING: Broken python installation detected. Python files installed by Meson might not be found by python interpreter.
Program bzip2 found: YES (/usr/bin/bzip2)
Program cgcc found: NO
Library m found: YES
Run-time dependency threads found: YES
Library util found: YES
Run-time dependency appleframeworks found: NO (tried framework)
Found pkg-config: /usr/bin/pkg-config (0.29.1)
Run-time dependency pixman-1 found: YES 0.38.4
Run-time dependency zlib found: YES 1.2.11
Has header "libaio.h" : NO
Run-time dependency liburing found: NO (tried pkgconfig)
Run-time dependency libxml-2.0 found: NO (tried pkgconfig)
Run-time dependency libnfs found: NO (tried pkgconfig)
Run-time dependency appleframeworks found: NO (tried framework)
Run-time dependency libseccomp found: NO (tried pkgconfig)
Has header "cap-ng.h" : NO
Run-time dependency xkbcommon found: NO (tried pkgconfig)
Has header "libvdeplug.h" : NO
Run-time dependency libpulse found: NO (tried pkgconfig)
Run-time dependency alsa found: NO (tried pkgconfig)
Run-time dependency jack found: NO (tried pkgconfig)
Run-time dependency spice-protocol found: NO (tried pkgconfig)
Run-time dependency spice-server found: NO (tried pkgconfig)
Library rt found: YES
Run-time dependency libiscsi found: NO (tried pkgconfig)
Run-time dependency libzstd found: NO (tried pkgconfig)
Run-time dependency virglrenderer found: NO (tried pkgconfig)
Run-time dependency libcurl found: NO (tried pkgconfig)
Run-time dependency libudev found: NO (tried pkgconfig)
Library mpathpersist found: NO
Run-time dependency ncursesw found: NO (tried pkgconfig)
Has header "curses.h" : NO
Message: Trying with /usr/include/ncursesw
Has header "curses.h" : NO
Has header "brlapi.h" : NO
sdl2-config found: NO
Run-time dependency sdl2 found: NO (tried pkgconfig and config-tool)
Library rados found: NO
Has header "rbd/librbd.h" : NO
Run-time dependency glusterfs-api found: NO (tried pkgconfig)
Has header "bzlib.h" : NO
Has header "lzfse.h" : NO
Has header "sys/soundcard.h" : YES
Run-time dependency gnutls found: NO (tried pkgconfig)
Run-time dependency gnutls found: NO (tried pkgconfig)
libgcrypt-config found: NO need ['>=1.8']
Run-time dependency libgcrypt found: NO (tried config-tool)
Run-time dependency nettle found: NO (tried pkgconfig)
Run-time dependency gtk+-3.0 found: NO (tried pkgconfig)
Run-time dependency libpng found: NO (tried pkgconfig)
Run-time dependency libjpeg found: NO (tried pkgconfig)
Has header "sasl/sasl.h" : NO
Has header "security/pam_appl.h" : NO
Has header "snappy-c.h" : NO
Has header "lzo/lzo1x.h" : NO
Run-time dependency libcacard found: NO (tried pkgconfig)
Run-time dependency u2f-emu found: NO (tried pkgconfig)
Run-time dependency libusbredirparser-0.5 found: NO (tried pkgconfig)
Run-time dependency libusb-1.0 found: NO (tried pkgconfig)
Run-time dependency libpmem found: NO (tried pkgconfig)
Run-time dependency libdaxctl found: NO (tried pkgconfig)
Run-time dependency libkeyutils found: NO (tried pkgconfig)
Checking for function "gettid" : YES
Run-time dependency libselinux found: YES 3.0
Run-time dependency fuse3 found: NO (tried pkgconfig)
Run-time dependency libbpf found: NO (tried pkgconfig)
Has header "sys/epoll.h" : YES
Has header "linux/magic.h" : YES
Has header "valgrind/valgrind.h" : NO
Has header "linux/btrfs.h" : YES
Has header "libdrm/drm.h" : NO
Has header "pty.h" : YES
Has header "sys/disk.h" : NO
Has header "sys/ioccom.h" : NO
Has header "sys/kcov.h" : NO
Checking for function "accept4" : YES
Checking for function "clock_adjtime" : YES
Checking for function "dup3" : YES
Checking for function "fallocate" : YES
Checking for function "posix_fallocate" : YES
Checking for function "posix_memalign" : YES
Checking for function "ppoll" : YES
Checking for function "preadv" : YES
Checking for function "sem_timedwait" with dependency threads: YES
Checking for function "sendfile" : YES
Checking for function "setns" : YES
Checking for function "unshare" : YES
Checking for function "syncfs" : YES
Checking for function "sync_file_range" : YES
Checking for function "timerfd_create" : YES
Checking for function "copy_file_range" : YES
Checking for function "openpty" with dependency -lutil: YES
Checking for function "strchrnul" : YES
Checking for function "system" : YES
Header <byteswap.h> has symbol "bswap_32" : YES
Header <sys/epoll.h> has symbol "epoll_create1" : YES
Header <unistd.h> has symbol "environ" : YES
Header <linux/falloc.h> has symbol "FALLOC_FL_PUNCH_HOLE" : YES
Header <linux/falloc.h> has symbol "FALLOC_FL_KEEP_SIZE" : YES
Header <linux/falloc.h> has symbol "FALLOC_FL_ZERO_RANGE" : YES
Has header "linux/fiemap.h" : YES
Header <linux/fs.h> has symbol "FS_IOC_FIEMAP" : YES
Checking for function "getrandom" : YES
Header <sys/random.h> has symbol "GRND_NONBLOCK" : YES
Header <sys/inotify.h> has symbol "inotify_init" : YES
Header <sys/inotify.h> has symbol "inotify_init1" : YES
Header <machine/bswap.h> has symbol "bswap32" : NO
Header <sys/prctl.h> has symbol "PR_SET_TIMERSLACK" : YES
Header <linux/rtnetlink.h> has symbol "IFLA_PROTO_DOWN" : YES
Header <sys/sysmacros.h> has symbol "makedev" : YES
Header <getopt.h> has symbol "optreset" : NO
Header <netinet/in.h> has symbol "IPPROTO_MPTCP" : NO
Checking whether type "struct sigevent" has member "sigev_notify_thread_id" : NO
Checking whether type "struct stat" has member "st_atim" : YES
Checking for type "struct iovec" : YES
Checking for type "struct utmpx" : YES
Checking for type "struct mmsghdr" : YES
Program scripts/minikconf.py found: YES (/usr/bin/python3 /home/onlylove/My/qemu/qemu-6.2.0/scripts/minikconf.py)
Configuring aarch64-softmmu-config-target.h using configuration
Configuring aarch64-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/aarch64-softmmu-config-devices.mak.d
Configuring aarch64-softmmu-config-devices.h using configuration
Configuring alpha-softmmu-config-target.h using configuration
Configuring alpha-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/alpha-softmmu-config-devices.mak.d
Configuring alpha-softmmu-config-devices.h using configuration
Configuring arm-softmmu-config-target.h using configuration
Configuring arm-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/arm-softmmu-config-devices.mak.d
Configuring arm-softmmu-config-devices.h using configuration
Configuring avr-softmmu-config-target.h using configuration
Configuring avr-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/avr-softmmu-config-devices.mak.d
Configuring avr-softmmu-config-devices.h using configuration
Configuring cris-softmmu-config-target.h using configuration
Configuring cris-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/cris-softmmu-config-devices.mak.d
Configuring cris-softmmu-config-devices.h using configuration
Configuring hppa-softmmu-config-target.h using configuration
Configuring hppa-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/hppa-softmmu-config-devices.mak.d
Configuring hppa-softmmu-config-devices.h using configuration
Configuring i386-softmmu-config-target.h using configuration
Configuring i386-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/i386-softmmu-config-devices.mak.d
Configuring i386-softmmu-config-devices.h using configuration
Configuring m68k-softmmu-config-target.h using configuration
Configuring m68k-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/m68k-softmmu-config-devices.mak.d
Configuring m68k-softmmu-config-devices.h using configuration
Configuring microblaze-softmmu-config-target.h using configuration
Configuring microblaze-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/microblaze-softmmu-config-devices.mak.d
Configuring microblaze-softmmu-config-devices.h using configuration
Configuring microblazeel-softmmu-config-target.h using configuration
Configuring microblazeel-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/microblazeel-softmmu-config-devices.mak.d
Configuring microblazeel-softmmu-config-devices.h using configuration
Configuring mips-softmmu-config-target.h using configuration
Configuring mips-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/mips-softmmu-config-devices.mak.d
Configuring mips-softmmu-config-devices.h using configuration
Configuring mips64-softmmu-config-target.h using configuration
Configuring mips64-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/mips64-softmmu-config-devices.mak.d
Configuring mips64-softmmu-config-devices.h using configuration
Configuring mips64el-softmmu-config-target.h using configuration
Configuring mips64el-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/mips64el-softmmu-config-devices.mak.d
Configuring mips64el-softmmu-config-devices.h using configuration
Configuring mipsel-softmmu-config-target.h using configuration
Configuring mipsel-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/mipsel-softmmu-config-devices.mak.d
Configuring mipsel-softmmu-config-devices.h using configuration
Configuring nios2-softmmu-config-target.h using configuration
Configuring nios2-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/nios2-softmmu-config-devices.mak.d
Configuring nios2-softmmu-config-devices.h using configuration
Configuring or1k-softmmu-config-target.h using configuration
Configuring or1k-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/or1k-softmmu-config-devices.mak.d
Configuring or1k-softmmu-config-devices.h using configuration
Configuring ppc-softmmu-config-target.h using configuration
Configuring ppc-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/ppc-softmmu-config-devices.mak.d
Configuring ppc-softmmu-config-devices.h using configuration
Configuring ppc64-softmmu-config-target.h using configuration
Configuring ppc64-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/ppc64-softmmu-config-devices.mak.d
Configuring ppc64-softmmu-config-devices.h using configuration
Configuring riscv32-softmmu-config-target.h using configuration
Configuring riscv32-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/riscv32-softmmu-config-devices.mak.d
Configuring riscv32-softmmu-config-devices.h using configuration
Configuring riscv64-softmmu-config-target.h using configuration
Configuring riscv64-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/riscv64-softmmu-config-devices.mak.d
Configuring riscv64-softmmu-config-devices.h using configuration
Configuring rx-softmmu-config-target.h using configuration
Configuring rx-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/rx-softmmu-config-devices.mak.d
Configuring rx-softmmu-config-devices.h using configuration
Configuring s390x-softmmu-config-target.h using configuration
Configuring s390x-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/s390x-softmmu-config-devices.mak.d
Configuring s390x-softmmu-config-devices.h using configuration
Configuring sh4-softmmu-config-target.h using configuration
Configuring sh4-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/sh4-softmmu-config-devices.mak.d
Configuring sh4-softmmu-config-devices.h using configuration
Configuring sh4eb-softmmu-config-target.h using configuration
Configuring sh4eb-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/sh4eb-softmmu-config-devices.mak.d
Configuring sh4eb-softmmu-config-devices.h using configuration
Configuring sparc-softmmu-config-target.h using configuration
Configuring sparc-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/sparc-softmmu-config-devices.mak.d
Configuring sparc-softmmu-config-devices.h using configuration
Configuring sparc64-softmmu-config-target.h using configuration
Configuring sparc64-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/sparc64-softmmu-config-devices.mak.d
Configuring sparc64-softmmu-config-devices.h using configuration
Configuring tricore-softmmu-config-target.h using configuration
Configuring tricore-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/tricore-softmmu-config-devices.mak.d
Configuring tricore-softmmu-config-devices.h using configuration
Configuring x86_64-softmmu-config-target.h using configuration
Configuring x86_64-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/x86_64-softmmu-config-devices.mak.d
Configuring x86_64-softmmu-config-devices.h using configuration
Configuring xtensa-softmmu-config-target.h using configuration
Configuring xtensa-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/xtensa-softmmu-config-devices.mak.d
Configuring xtensa-softmmu-config-devices.h using configuration
Configuring xtensaeb-softmmu-config-target.h using configuration
Configuring xtensaeb-softmmu-config-devices.mak with command
Reading depfile: /home/onlylove/My/qemu/qemu-6.2.0/build/meson-private/xtensaeb-softmmu-config-devices.mak.d
Configuring xtensaeb-softmmu-config-devices.h using configuration
Configuring aarch64-linux-user-config-target.h using configuration
Configuring aarch64_be-linux-user-config-target.h using configuration
Configuring alpha-linux-user-config-target.h using configuration
Configuring arm-linux-user-config-target.h using configuration
Configuring armeb-linux-user-config-target.h using configuration
Configuring cris-linux-user-config-target.h using configuration
Configuring hexagon-linux-user-config-target.h using configuration
Configuring hppa-linux-user-config-target.h using configuration
Configuring i386-linux-user-config-target.h using configuration
Configuring m68k-linux-user-config-target.h using configuration
Configuring microblaze-linux-user-config-target.h using configuration
Configuring microblazeel-linux-user-config-target.h using configuration
Configuring mips-linux-user-config-target.h using configuration
Configuring mips64-linux-user-config-target.h using configuration
Configuring mips64el-linux-user-config-target.h using configuration
Configuring mipsel-linux-user-config-target.h using configuration
Configuring mipsn32-linux-user-config-target.h using configuration
Configuring mipsn32el-linux-user-config-target.h using configuration
Configuring nios2-linux-user-config-target.h using configuration
Configuring or1k-linux-user-config-target.h using configuration
Configuring ppc-linux-user-config-target.h using configuration
Configuring ppc64-linux-user-config-target.h using configuration
Configuring ppc64le-linux-user-config-target.h using configuration
Configuring riscv32-linux-user-config-target.h using configuration
Configuring riscv64-linux-user-config-target.h using configuration
Configuring s390x-linux-user-config-target.h using configuration
Configuring sh4-linux-user-config-target.h using configuration
Configuring sh4eb-linux-user-config-target.h using configuration
Configuring sparc-linux-user-config-target.h using configuration
Configuring sparc32plus-linux-user-config-target.h using configuration
Configuring sparc64-linux-user-config-target.h using configuration
Configuring x86_64-linux-user-config-target.h using configuration
Configuring xtensa-linux-user-config-target.h using configuration
Configuring xtensaeb-linux-user-config-target.h using configuration
Run-time dependency capstone found: NO (tried pkgconfig)
Configuring capstone-defs.h using configuration
Run-time dependency slirp found: NO (tried pkgconfig)
Configuring libslirp-version.h using configuration
Library fdt found: YES
Configuring config-host.h using configuration
Program scripts/hxtool found: YES (/home/onlylove/My/qemu/qemu-6.2.0/scripts/hxtool)
Program scripts/shaderinclude.pl found: YES (/usr/bin/env perl /home/onlylove/My/qemu/qemu-6.2.0/scripts/shaderinclude.pl)
Program scripts/qapi-gen.py found: YES (/usr/bin/python3 /home/onlylove/My/qemu/qemu-6.2.0/scripts/qapi-gen.py)
Program scripts/qemu-version.sh found: YES (/home/onlylove/My/qemu/qemu-6.2.0/scripts/qemu-version.sh)
Executing subproject libvhost-user
libvhost-user| Project name: libvhost-user
libvhost-user| Project version: undefined
libvhost-user| C compiler for the host machine: cc -m64 -mcx16 (gcc 9.4.0 "cc (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0")
libvhost-user| C linker for the host machine: cc -m64 -mcx16 ld.bfd 2.34
libvhost-user| Dependency threads found: YES unknown (cached)
libvhost-user| Dependency glib-2.0 found: YES 6.2.0 (overridden)
libvhost-user| Build targets in project: 10
libvhost-user| Subproject libvhost-user finished.
Program cat found: YES (/usr/bin/cat)
Program scripts/decodetree.py found: YES (/usr/bin/python3 /home/onlylove/My/qemu/qemu-6.2.0/scripts/decodetree.py)
Program ../scripts/modules/module_block.py found: YES (/usr/bin/python3 /home/onlylove/My/qemu/qemu-6.2.0/block/../scripts/modules/module_block.py)
Program ../scripts/block-coroutine-wrapper.py found: YES (/usr/bin/python3 /home/onlylove/My/qemu/qemu-6.2.0/block/../scripts/block-coroutine-wrapper.py)
Program scripts/modinfo-collect.py found: YES (/home/onlylove/My/qemu/qemu-6.2.0/scripts/modinfo-collect.py)
Program scripts/modinfo-generate.py found: YES (/home/onlylove/My/qemu/qemu-6.2.0/scripts/modinfo-generate.py)
Program nm found: YES
Program scripts/undefsym.py found: YES (/usr/bin/python3 /home/onlylove/My/qemu/qemu-6.2.0/scripts/undefsym.py)
Program scripts/feature_to_c.sh found: YES (/bin/sh /home/onlylove/My/qemu/qemu-6.2.0/scripts/feature_to_c.sh)
Configuring 50-edk2-i386-secure.json using configuration
Configuring 50-edk2-x86_64-secure.json using configuration
Configuring 60-edk2-aarch64.json using configuration
Configuring 60-edk2-arm.json using configuration
Configuring 60-edk2-i386.json using configuration
Configuring 60-edk2-x86_64.json using configuration
Program qemu-keymap found: NO
Program cp found: YES (/usr/bin/cp)
Program sphinx-build-3 sphinx-build found: NO
Program python3 found: YES (/usr/bin/python3)
Program diff found: YES (/usr/bin/diff)
Program dbus-daemon found: YES (/usr/bin/dbus-daemon)
Program /usr/bin/gdbus-codegen found: YES (/usr/bin/gdbus-codegen)
Program initrd-stress.sh found: YES (/home/onlylove/My/qemu/qemu-6.2.0/tests/migration/initrd-stress.sh)
Build targets in project: 645
qemu 6.2.0
Directories
Install prefix : /usr/local
BIOS directory : share/qemu
firmware path : /usr/local/share/qemu-firmware
binary directory : bin
library directory : lib
module directory : lib/qemu
libexec directory : libexec
include directory : include
config directory : /usr/local/etc
local state directory : /usr/local/var
Manual directory : share/man
Doc directory : /usr/local/share/doc
Build directory : /home/onlylove/My/qemu/qemu-6.2.0/build
Source path : /home/onlylove/My/qemu/qemu-6.2.0
GIT submodules : ui/keycodemapdb tests/fp/berkeley-testfloat-3 tests/fp/berkeley-softfloat-3 dtc capstone slirp
Host binaries
git : git
make : make
python : /usr/bin/python3 (version: 3.8)
sphinx-build : NO
gdb : /usr/bin/gdb
genisoimage : /usr/bin/genisoimage
smbd : "/usr/sbin/smbd"
Configurable features
Documentation : NO
system-mode emulation : YES
user-mode emulation : YES
block layer : YES
Install blobs : YES
module support : NO
fuzzing support : NO
Audio drivers : oss
Trace backends : log
QOM debugging : YES
vhost-kernel support : YES
vhost-net support : YES
vhost-crypto support : YES
vhost-scsi support : YES
vhost-vsock support : YES
vhost-user support : YES
vhost-user-blk server support: YES
vhost-user-fs support : YES
vhost-vdpa support : YES
build guest agent : YES
Compilation
host CPU : x86_64
host endianness : little
C compiler : cc -m64 -mcx16
Host C compiler : cc -m64 -mcx16
C++ compiler : NO
CFLAGS : -O2 -g
QEMU_CFLAGS : -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wundef -Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing -fno-common -fwrapv -Wold-style-declaration -Wold-style-definition -Wtype-limits -Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers -Wempty-body -Wnested-externs -Wendif-labels -Wexpansion-to-defined -Wimplicit-fallthrough=2 -Wno-missing-include-dirs -Wno-shift-negative-value -Wno-psabi -fstack-protector-strong
QEMU_LDFLAGS : -Wl,--warn-common -Wl,-z,relro -Wl,-z,now -fstack-protector-strong
profiler : NO
link-time optimization (LTO) : NO
PIE : YES
static build : NO
malloc trim support : YES
membarrier : NO
debug stack usage : NO
mutex debugging : NO
memory allocator : system
avx2 optimization : YES
avx512f optimization : NO
gprof enabled : NO
gcov : NO
thread sanitizer : NO
CFI support : NO
strip binaries : YES
sparse : NO
mingw32 support : NO
x86_64 tests : cc
Targets and accelerators
KVM support : YES
HAX support : NO
HVF support : NO
WHPX support : NO
NVMM support : NO
Xen support : NO
TCG support : YES
TCG backend : native (x86_64)
TCG plugins : YES
TCG debug enabled : NO
target list : aarch64-softmmu alpha-softmmu arm-softmmu avr-softmmu cris-softmmu hppa-softmmu i386-softmmu m68k-softmmu microblaze-softmmu microblazeel-softmmu mips-softmmu mips64-softmmu mips64el-softmmu mipsel-softmmu nios2-softmmu or1k-softmmu ppc-softmmu ppc64-softmmu riscv32-softmmu riscv64-softmmu rx-softmmu s390x-softmmu sh4-softmmu sh4eb-softmmu sparc-softmmu sparc64-softmmu tricore-softmmu x86_64-softmmu xtensa-softmmu xtensaeb-softmmu aarch64-linux-user aarch64_be-linux-user alpha-linux-user arm-linux-user armeb-linux-user cris-linux-user hexagon-linux-user hppa-linux-user i386-linux-user m68k-linux-user microblaze-linux-user microblazeel-linux-user mips-linux-user mips64-linux-user mips64el-linux-user mipsel-linux-user mipsn32-linux-user mipsn32el-linux-user nios2-linux-user or1k-linux-user ppc-linux-user ppc64-linux-user ppc64le-linux-user riscv32-linux-user riscv64-linux-user s390x-linux-user sh4-linux-user sh4eb-linux-user sparc-linux-user sparc32plus-linux-user sparc64-linux-user x86_64-linux-user xtensa-linux-user xtensaeb-linux-user
default devices : YES
out of process emulation : YES
Block layer support
coroutine backend : ucontext
coroutine pool : YES
Block whitelist (rw) :
Block whitelist (ro) :
Use block whitelist in tools : NO
VirtFS support : NO
build virtiofs daemon : NO
Live block migration : YES
replication support : YES
bochs support : YES
cloop support : YES
dmg support : YES
qcow v1 support : YES
vdi support : YES
vvfat support : YES
qed support : YES
parallels support : YES
FUSE exports : NO
Crypto
TLS priority : "NORMAL"
GNUTLS support : NO
libgcrypt : NO
nettle : NO
crypto afalg : NO
rng-none : NO
Linux keyring : YES
Dependencies
SDL support : NO
SDL image support : NO
GTK support : NO
pixman : YES 0.38.4
VTE support : NO
slirp support : internal
libtasn1 : NO
PAM : NO
iconv support : YES
curses support : NO
virgl support : NO
curl support : NO
Multipath support : NO
VNC support : YES
VNC SASL support : NO
VNC JPEG support : NO
VNC PNG support : NO
OSS support : YES
ALSA support : NO
PulseAudio support : NO
JACK support : NO
brlapi support : NO
vde support : NO
netmap support : NO
v3 support : YES
Linux AIO support : NO
Linux io_uring support : NO
ATTR/XATTR support : YES
RDMA support : NO
PVRDMA support : NO
fdt support : system
libcap-ng support : NO
bpf support : NO
spice protocol support : NO
rbd support : NO
xfsctl support : NO
smartcard support : NO
U2F support : NO
libusb : NO
usb net redir : NO
OpenGL support : NO
GBM : NO
libiscsi support : NO
libnfs support : NO
seccomp support : NO
GlusterFS support : NO
TPM support : YES
libssh support : NO
lzo support : NO
snappy support : NO
bzip2 support : NO
lzfse support : NO
zstd support : NO
NUMA host support : NO
libxml2 : NO
capstone : internal
libpmem support : NO
libdaxctl support : NO
libudev : NO
FUSE lseek : NO
selinux : YES 3.0
Subprojects
libvhost-user : YES
Found ninja-1.10.0 at /usr/bin/ninja
6、编辑
make -j4 // 4 核心编译
编译后文件保存在 qemu/build 文件夹下。
onlylove@ubuntu:~/My/qemu/qemu-6.2.0/build$ ls qemu-system-
qemu-system-aarch64 qemu-system-i386 qemu-system-mips64.p/ qemu-system-riscv32 qemu-system-sparc
qemu-system-aarch64.p/ qemu-system-i386.p/ qemu-system-mipsel qemu-system-riscv32.p/ qemu-system-sparc64
qemu-system-alpha qemu-system-m68k qemu-system-mipsel.p/ qemu-system-riscv64 qemu-system-sparc64.p/
qemu-system-alpha.p/ qemu-system-m68k.p/ qemu-system-mips.p/ qemu-system-riscv64.p/ qemu-system-sparc.p/
qemu-system-arm qemu-system-microblaze qemu-system-nios2 qemu-system-rx qemu-system-tricore
qemu-system-arm.p/ qemu-system-microblazeel qemu-system-nios2.p/ qemu-system-rx.p/ qemu-system-tricore.p/
qemu-system-avr qemu-system-microblazeel.p/ qemu-system-or1k qemu-system-s390x qemu-system-x86_64
qemu-system-avr.p/ qemu-system-microblaze.p/ qemu-system-or1k.p/ qemu-system-s390x.p/ qemu-system-x86_64.p/
qemu-system-cris qemu-system-mips qemu-system-ppc qemu-system-sh4 qemu-system-xtensa
qemu-system-cris.p/ qemu-system-mips64 qemu-system-ppc64 qemu-system-sh4eb qemu-system-xtensaeb
qemu-system-hppa qemu-system-mips64el qemu-system-ppc64.p/ qemu-system-sh4eb.p/ qemu-system-xtensaeb.p/
qemu-system-hppa.p/ qemu-system-mips64el.p/ qemu-system-ppc.p/ qemu-system-sh4.p/ qemu-system-xtensa.p/
onlylove@ubuntu:~/My/qemu/qemu-6.2.0/build$
7、提取 qemu-system-arm
为了避免污染 qemu 源码目录，我们将使用的可执行文件拷贝出来。
1、建立新文件夹
mkdir qemu-lq
2、拷贝使用的可执行文件
cp qemu-system-arm ../../qemu-lq/
3、检测文件
onlylove@ubuntu:~/My/qemu/qemu-lq$ ./qemu-system-arm -version
QEMU emulator version 6.2.0
Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers
onlylove@ubuntu:~/My/qemu/qemu-lq$