Cross-compilation is the process of building executable code on one platform (the build host) that is intended to run on an entirely different platform (the target system). This approach is fundamental to embedded systems development, operating system design, and multi-platform software distribution where the target system lacks the resources or environment to compile its own code. 🔑 Core Concepts & Terminology
Understanding cross-compilation requires mastering the standard GNU Triplet Convention which defines the three environments involved:
Build Platform: The machine where the compilation actually takes place (e.g., your powerful x86_64 Intel/AMD development laptop).
Host Platform: The machine where the compiled binary will eventually execute (e.g., an ARM64 Raspberry Pi).
Target Platform: The platform the tool will generate code for. This only applies when you are building a compiler itself (e.g., compiling a compiler on Linux that will run on Windows and output code for Android). ⚙️ Why Cross-Compile?
Developers rely on cross-compilers for several critical production use cases: Cross Compiling With CMake
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