Worked on the golang/go repository to expand LoongArch support by implementing LoongArch Toolchain Flag Support, enhancing compatibility for Loong64 and enabling advanced cgo workflows. Focused on compiler design and system programming using Go, the work introduced new compiler and linker flags, allowing for more flexible build and link steps across architectures. Developed and validated targeted tests to ensure stability and forward compatibility, reducing friction for LoongArch users and supporting robust cross-architecture builds. This feature laid the foundation for future enhancements related to LoongArch, emphasizing careful testing and integration to maintain stable builds and prevent regressions in the toolchain.