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boredos_mirror/docs/build/toolchain.md
Chris 6d999fdaa3
Remove installation instructions for toolchain 
Removed installation instructions for macOS, Linux, and related notes.
2026-04-18 16:45:48 +02:00

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Build Toolchain

BoredOS is built cross-compiled from a host system (such as macOS or Linux) to target the generic x86_64-elf platform.

Prerequisites

To build BoredOS, you need the following tools:

  1. x86_64 ELF GCC Cross-Compiler:

    • x86_64-elf-gcc: The C compiler targeting the freestanding overarching ELF environment.
    • x86_64-elf-ld: The linker to combine object files into the final boredos.elf kernel binary and userland variables.

  2. NASM:

    • Required to compile the .asm files in src/arch/ and src/userland/crt0.asm. It formats the output as elf64 objects to be linked alongside the C code.

  3. xorriso:

    • A specialized tool to create ISO 9660 filesystem images.
    • Why? xorriso packages the compiled kernel, Limine bootloader, and asset files (fonts, images, userland binaries) into the final bootable boredos.iso CD-ROM image.

  4. QEMU (Optional but highly recommended for testing):

    • qemu-system-x86_64 is used to virtualize the OS for testing or to mess around.