ABI shim — 2 Technical Articles

Jun 24, 2025 · Fundamentals

Why HarmonyOS’s Microkernel Isn’t Linux Yet Runs Linux Apps

The article explains how HarmonyOS’s microkernel differs from Linux’s monolithic design, why it can still run Linux binaries through POSIX, ABI shim, and HDF layers, and what architectural choices enable high‑performance IPC, distributed operation, and deterministic scheduling.

ABI shimHarmonyOSIPC

0 likes · 12 min read

Why HarmonyOS’s Microkernel Isn’t Linux Yet Runs Linux Apps

Linux Code Review Hub

May 20, 2025 · Fundamentals

Why HarmonyOS Microkernel Can Run Linux and Emulate Linux Containers

Although HarmonyOS uses a microkernel rather than a monolithic Linux kernel, it achieves Linux compatibility and container emulation through a combination of POSIX support, an ABI shim layer, high‑performance IPC/RPC mechanisms, and the Hardware Driver Framework, which together translate Linux calls into microkernel services.

ABI shimHardware Driver FrameworkHarmonyOS

0 likes · 13 min read

Why HarmonyOS Microkernel Can Run Linux and Emulate Linux Containers