Introduction In the field of embedded system development, the stability and maintainability of build tools are crucial for the long-term development of projects. Embedded projects often require cross-compilation for different hardware platforms, each relying on specific build toolchains, making the environment setup complex. With the popularity of the LLVM toolchain, adopting modern build toolchains in … Read more
Hello everyone, I am a programmer who loves to share. I am happy to share my experiences and understanding from my work. -begin- In embedded development, the handling of floating point operations directly affects the performance and compatibility of programs, and -mfloat-abi is the key option that controls the floating point operation strategy. It determines … Read more
FFmpeg Rockchip encapsulates the hardware-accelerated video codec library MPP from Rockchip, allowing for easier use of Rockchip’s hardware-accelerated video encoding and decoding capabilities through FFmpeg’s command line and API. FFmpeg Rockchip depends on Rockchip’s MPP and librga libraries, so we first need to cross-compile the MPP and librga libraries. Compilation Environment The compilation system is … Read more
Hello everyone, I am a programmer who loves to share. I am happy to share my experiences and insights from my work. -begin- Day 1: The -mcpu Option of Cross Toolchains – “Tailoring” the Instruction Set for Target CPUs In embedded development, advanced options of cross toolchains (such as arm-linux-gnueabihf-gcc) can make the compiled programs … Read more
Introduction Deploying Qt applications in embedded Linux systems is a common requirement in scenarios such as industrial control, smart terminals, and in-vehicle systems. However, unlike desktop environments, embedded devices often lack a complete graphics stack (such as X11 or Wayland) and may not even have a window manager. Therefore, Qt provides various platform plugins to … Read more
We need to compile the u-dma-buf driver. This repository contains a Makefile.The Makefile has the following parameters: Parameter Name Description Default Value ARCH Architecture Name <span>$(shell uname -m | sed -e s/arm.*/arm/ -e s/aarch64.*/arm64/)</span> KERNEL_SRC Kernel Source Directory <span>/lib/modules/$(shell uname -r)/build</span> Cross Compile If you have a cross-compilation environment for the target system, you can … Read more
“In embedded development, target devices often cannot compile locally due to limited resources. Cross-compilation becomes a key technology—using a powerful host platform and a dedicated toolchain to generate executable code for the target platform. This article elaborates on its concepts and general processes, detailing cross-compilation implementation with examples from the three major architectures: ARM, MIPS, … Read more
1. Desktop Kernel Compilation a. Environment Preparation # Update apt package sources sudo apt update # Install compilation software environment apt install git fakeroot build-essential ncurses-dev xz-utils libssl-dev bc flex libelf-dev bison dwarves u-boot-tools xxd libncurses5-dev openssl Explanation: fakeroot: A tool for simulating a fake root environment build-essential: Basic compilation tools and environment, including: C, … Read more
On Embedded Development Boards Practical Guide to Compiling and Using Valgrind and ASan Tools 01 Introduction In embedded development, memory issues (such as memory leaks, out-of-bounds access, double free, etc.) are major causes of program crashes or instability. Valgrind and AddressSanitizer (ASan) are two powerful memory detection tools, but their usage scenarios and deployment methods … Read more
Installation Environment The company’s virtualization solution is written in Rust, and here is a configuration for the Rust environment. Remember, do not use the version from the Ubuntu repository; instead, follow the documentation to use the latest version. Necessary Tools apt install curl rsync gdb-multiarch openocd cargo doxygen qemu-user-static \ build-essential libncurses5-dev libssl-dev libgtk2.0-dev libglib2.0-dev … Read more