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Quick Emulator (QEMU) can simulate the scenario where a kernel runs on different boards, so that the kernel no longer depends on physical development boards.
/device/qemu
├── arm_virt # ARM virt board
│ └── liteos_a # Configuration related to the LiteOS Cortex-A kernel
│ └── config # Configuration related to drivers
├── drivers # Platform drivers
│ └── libs # Driver library
│ └── virt # virt platform
├── riscv32_virt # RISCV32 virt board
│ ├── driver # Driver code
│ ├── include # APIs exposed externally
│ ├── libc # Basic libc library
│ ├── fs # fs configuration
│ ├── test # Test the demo
│ └── liteos_m # Configuration related to the LiteOS Cortex-m kernel
├── arm_mps2_an386 # cortex-m4 mps2_an386 board
│ ├── driver # Driver code
│ ├── include # APIs exposed externally
│ ├── libc # Basic libc library
│ ├── fs # fs configuration
│ ├── test # Test the demo
│ └── liteos_m # Configuration related to the LiteOS Cortex-m kernel
├── esp32 # Xtensa esp32 board
│ ├── hals # Hardware adaptation layer
│ ├── driver # Driver code
│ ├── include # APIs exposed externally
│ ├── libc # Basic libc library
│ ├── fs # fs configuration
│ ├── test # Test the demo
│ └── liteos_m # Configuration related to the LiteOS Cortex-m kernel
├── SmartL_E802 # C-SKY SmartL_E802 board
│ ├── hals # Hardware adaptation layer
│ ├── driver # Driver code
│ ├── libc # Basic libc library
│ ├── fs # fs configuration
│ ├── test # Test the demo
│ └── liteos_m # Configuration related to the LiteOS Cortex-m kernel
QEMU applies only to the OpenHarmony kernel.
Install dependencies(Ubuntu 18+)
$ sudo apt install build-essential zlib1g-dev pkg-config libglib2.0-dev binutils-dev libboost-all-dev autoconf libtool libssl-dev libpixman-1-dev virtualenv flex bison
Acquiring Source Code
$ wget https://download.qemu.org/qemu-6.0.0.tar.xz
or
Compile and install
$ tar -xf qemu-6.0.0.tar.xz
$ cd qemu-6.0.0
$ mkdir build && cd build
$ ../configure --prefix=qemu_installation_path
$ make -j16
Wait for the compilation to finish and execute the installation command:
$ make install
Finally, add the installation path to the environment variable:
$ vim ~/.bashrc
Add the following command line to the last line of ~/.bashrc:
$ export PATH=$PATH:qemu_installation_path
For details about the ARM architectures:
For details about the Cortex-m4 architecture, see Qemu Cortex-m4 mps2-an386 HOWTO.
For details about the RISC-V architecture, see Qemu RISC-V Virt HOWTO.
For details about the Xtensa architecture, see Qemu Xtensa Virt HOWTO.
For details about the C-SKY architecture, see Qemu C-SKY Virt HOWTO.
device_qemu
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