需要下载的资源

表1 下载资源

qemu windows环境搭建

安装上述表格中的资源1：qemu-w64-setup-1230.exe(win7 64位系统验证OK)，安装完毕之后，可以通过CMD运行以下命令测试是否可以正常运行qemu，如果能够正常显示版本号，说明可以正常运行。

注意：对于win7 64位系统，如果提示缺失api-ms-win-core-path-l1-1-0.dll文件，请将压缩包内的api-ms-win-core-path-l1-1-0.dll文件复制一份拷贝到qemu安装目录

如果是win10 64位系统，请使用qemu-w64-setup-1215.exe安装

C:\Users\xxxxx>"C:\Program Files\qemu\qemu-system-aarch64.exe" -versionQEMU emulator version 7.2.0 (v7.2.0-11948-ge6523b71fc-dirty)Copyright (c) - Fabrice Bellard and the QEMU Project developers

可以通过 -M help命令选项，查看qemu aarch64支持的开发板类型，这里我们使用树莓派3b开发板，也就是raspi3b，Raspberry Pi 3B (revision 1.2)

C:\Users\xxx>"C:\Program Files\qemu\qemu-system-aarch64.exe" -M helpSupported machines are:akitaSharp SL-C1000 (Akita) PDA (PXA270)ast1030-evbAspeed AST1030 MiniBMC (Cortex-M4)ast2500-evbAspeed AST2500 EVB (ARM1176)ast2600-evbAspeed AST2600 EVB (Cortex-A7)bletchley-bmc Facebook Bletchley BMC (Cortex-A7)borzoiSharp SL-C3100 (Borzoi) PDA (PXA270)canon-a1100Canon PowerShot A1100 IS (ARM946)cheetah Palm Tungsten|E aka. Cheetah PDA (OMAP310)collieSharp SL-5500 (Collie) PDA (SA-1110)connexGumstix Connex (PXA255)cubieboard cubietech cubieboard (Cortex-A8)emcraft-sf2SmartFusion2 SOM kit from Emcraft (M2S010)fby35-bmc Facebook fby35 BMC (Cortex-A7)fby35Meta Platforms fby35fp5280g2-bmc Inspur FP5280G2 BMC (ARM1176)fuji-bmc Facebook Fuji BMC (Cortex-A7)g220a-bmc Bytedance G220A BMC (ARM1176)highbank Calxeda Highbank (ECX-1000)imx25-pdk ARM i.MX25 PDK board (ARM926)integratorcp ARM Integrator/CP (ARM926EJ-S)kudo-bmc Kudo BMC (Cortex-A9)kzm ARM KZM Emulation Baseboard (ARM1136)lm3s6965evbStellaris LM3S6965EVB (Cortex-M3)lm3s811evb Stellaris LM3S811EVB (Cortex-M3)mainstone Mainstone II (PXA27x)mcimx6ul-evk Freescale i.MX6UL Evaluation Kit (Cortex-A7)mcimx7d-sabre Freescale i.MX7 DUAL SABRE (Cortex-A7)microbit BBC micro:bit (Cortex-M0)midwayCalxeda Midway (ECX-2000)mori-bmc Mori BMC (Cortex-A9)mps2-an385 ARM MPS2 with AN385 FPGA image for Cortex-M3mps2-an386 ARM MPS2 with AN386 FPGA image for Cortex-M4mps2-an500 ARM MPS2 with AN500 FPGA image for Cortex-M7mps2-an505 ARM MPS2 with AN505 FPGA image for Cortex-M33mps2-an511 ARM MPS2 with AN511 DesignStart FPGA image for Cortex-M3mps2-an521 ARM MPS2 with AN521 FPGA image for dual Cortex-M33mps3-an524 ARM MPS3 with AN524 FPGA image for dual Cortex-M33mps3-an547 ARM MPS3 with AN547 FPGA image for Cortex-M55musca-a ARM Musca-A board (dual Cortex-M33)musca-b1 ARM Musca-B1 board (dual Cortex-M33)musicpal Marvell 88w8618 / MusicPal (ARM926EJ-S)n800 Nokia N800 tablet aka. RX-34 (OMAP2420)n810 Nokia N810 tablet aka. RX-44 (OMAP2420)netduino2 Netduino 2 Machine (Cortex-M3)netduinoplus2 Netduino Plus 2 Machine (Cortex-M4)none empty machinenpcm750-evbNuvoton NPCM750 Evaluation Board (Cortex-A9)nuri Samsung NURI board (Exynos4210)orangepi-pcOrange Pi PC (Cortex-A7)palmetto-bmc OpenPOWER Palmetto BMC (ARM926EJ-S)qcom-dc-scm-v1-bmc Qualcomm DC-SCM V1 BMC (Cortex A7)qcom-firework-bmc Qualcomm DC-SCM V1/Firework BMC (Cortex A7)quanta-gbs-bmc Quanta GBS (Cortex-A9)quanta-gsj Quanta GSJ (Cortex-A9)quanta-q71l-bmcQuanta-Q71l BMC (ARM926EJ-S)rainier-bmcIBM Rainier BMC (Cortex-A7)raspi0Raspberry Pi Zero (revision 1.2)raspi1ap Raspberry Pi A+ (revision 1.1)raspi2b Raspberry Pi 2B (revision 1.1)raspi3ap Raspberry Pi 3A+ (revision 1.0)raspi3b Raspberry Pi 3B (revision 1.2)realview-ebARM RealView Emulation Baseboard (ARM926EJ-S)realview-eb-mpcore ARM RealView Emulation Baseboard (ARM11MPCore)realview-pb-a8 ARM RealView Platform Baseboard for Cortex-A8realview-pbx-a9ARM RealView Platform Baseboard Explore for Cortex-A9romulus-bmcOpenPOWER Romulus BMC (ARM1176)sabrelite Freescale i.MX6 Quad SABRE Lite Board (Cortex-A9)sbsa-ref QEMU 'SBSA Reference' ARM Virtual Machinesmdkc210 Samsung SMDKC210 board (Exynos4210)sonorapass-bmc OCP SonoraPass BMC (ARM1176)spitzSharp SL-C3000 (Spitz) PDA (PXA270)stm32vldiscoveryST STM32VLDISCOVERY (Cortex-M3)supermicrox11-bmc Supermicro X11 BMC (ARM926EJ-S)sx1 Siemens SX1 (OMAP310) V2sx1-v1Siemens SX1 (OMAP310) V1tacoma-bmc OpenPOWER Tacoma BMC (Cortex-A7)terrier Sharp SL-C3200 (Terrier) PDA (PXA270)tosa Sharp SL-6000 (Tosa) PDA (PXA255)verdexGumstix Verdex (PXA270)versatileabARM Versatile/AB (ARM926EJ-S)versatilepbARM Versatile/PB (ARM926EJ-S)vexpress-a15 ARM Versatile Express for Cortex-A15vexpress-a9ARM Versatile Express for Cortex-A9virt-2.10 QEMU 2.10 ARM Virtual Machinevirt-2.11 QEMU 2.11 ARM Virtual Machinevirt-2.12 QEMU 2.12 ARM Virtual Machinevirt-2.6 QEMU 2.6 ARM Virtual Machinevirt-2.7 QEMU 2.7 ARM Virtual Machinevirt-2.8 QEMU 2.8 ARM Virtual Machinevirt-2.9 QEMU 2.9 ARM Virtual Machinevirt-3.0 QEMU 3.0 ARM Virtual Machinevirt-3.1 QEMU 3.1 ARM Virtual Machinevirt-4.0 QEMU 4.0 ARM Virtual Machinevirt-4.1 QEMU 4.1 ARM Virtual Machinevirt-4.2 QEMU 4.2 ARM Virtual Machinevirt-5.0 QEMU 5.0 ARM Virtual Machinevirt-5.1 QEMU 5.1 ARM Virtual Machinevirt-5.2 QEMU 5.2 ARM Virtual Machinevirt-6.0 QEMU 6.0 ARM Virtual Machinevirt-6.1 QEMU 6.1 ARM Virtual Machinevirt-6.2 QEMU 6.2 ARM Virtual Machinevirt-7.0 QEMU 7.0 ARM Virtual Machinevirt-7.1 QEMU 7.1 ARM Virtual Machinevirt QEMU 7.2 ARM Virtual Machine (alias of virt-7.2)virt-7.2 QEMU 7.2 ARM Virtual Machinewitherspoon-bmcOpenPOWER Witherspoon BMC (ARM1176)xilinx-zynq-a9 Xilinx Zynq Platform Baseboard for Cortex-A9xlnx-versal-virtXilinx Versal Virtual development boardxlnx-zcu102Xilinx ZynqMP ZCU102 board with 4xA53s and 2xR5Fs based on the value of smpz2 Zipit Z2 (PXA27x)

编译和运行RT-Thread

rt-thread的开发需要下载源码和rt-thread官方的env工具，env工具对应表格1中的资源2，env工具需要解压，该工具默认是aarch32的配置，也就是默认支持的编译arm处理器32位，比如qemu-vexpress-a9的板级编译，如果需要编译aarch64，需要配置aarch64架构的编译器（gcc-arm-10.3-.07-mingw-w64-i686-aarch64-none-elf）

解压env_released_1.2.0.7z，进入env文件夹目录，将raspi3b_run_rt_thread_in_Qemu.rar压缩包内部的gcc-arm-10.3-.07-mingw-w64-i686-aarch64-none-elf.tar.xz继续解压，复制gcc-arm-10.3-.07-mingw-w64-i686-aarch64-none-elf文件夹的所有内容到env路径：env\tools\gnu_gcc\arm_gcc

如下图所示：

将rt-thread env BuilConfig.rar内部的文件夹BuilConfig解压到env根路径，如下图所示，进入BuildConfig，双击执行批处理脚本aarch64config.bat（如需恢复默认的配置，双击执行aarch32config.bat即可恢复默认配置），执行完毕后，此时env工具具备构建aarch64架构处理器的能力了。

然后运行env.bat，启动rt-thread的cmd工具，执行cd命令，进入rt-thread源码目录：rt-thread\bsp\raspberry-pi\raspi3-64，修改该目录下的rtconfig.py文件，将内容

EXEC_PATH = r'/opt/gcc-arm-8.3-.03-x86_64-aarch64-elf/bin/'

修改为：

EXEC_PATH = os.getenv('RTT_EXEC_PATH') or r'/usr/bin'

然后执行命令scons开始构建

构建完毕之后，在该目录下会生成两个文件：kernel8.img和rtthread.elf，在该目录下使用qemu_raspi3-64.bat脚本运行启动rt-thread应用，内容如下

@echo offif exist sd.bin goto runqemu-img create -f raw sd.bin 64M:run"C:\Program Files\qemu\qemu-system-aarch64.exe" -M raspi3b -kernel kernel8.img -serial null -serial stdio -sd sd.bin

我的操作系统是win10 64位，提示如下错误问题，实际在win7 64位系统上没有暴露过该问题，这里的qemu安装包版本是：qemu-w64-setup-1230.exe（win10 64位验证报错，win7 64位验证没有问题）

> qemu_raspi3-64.batWARNING: Image format was not specified for 'sd.bin' and probing guessed raw.Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.Specify the 'raw' format explicitly to remove the restrictions.(qemu:12604): Gtk-WARNING **: 18:28:39.291: Could not load a pixbuf from icon theme.This may indicate that pixbuf loaders or the mime database could not be found.

经过排查分析，确认上述问题是安装的qemu版本不兼容win10 64位系统导致，更换为qemu-w64-setup-1215.exe，卸载并重新安装，问题解决。

最终的运行结果（qemu+rt-thread+aarhch64+树莓派3b）

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