Simulate Linux kernel compilation logs with CC, LD, and OBJCOPY stages. Generate realistic make output for kernel development tutorials and embedded systems training.
Press Ctrl + C to exit. Output is simulated for demo purposes only.
This module simulates arch builds, VMLINUX link, and object steps log events with realistic pacing.
It is designed for demos, log pipeline testing, and documentation where the real stack is unavailable.
All output is generated locally in the browser and is safe to run.
CC kernel/sched/core.o AR kernel/built-in.o LD vmlinux OBJCOPY arch/x86/boot/vmlinux.bin BUILD arch/x86/boot/bzImage Kernel: arch/x86/boot/bzImage is ready (#1)
No. It is a simulator that prints log text only.
Yes. The CLI supports speed and repeat options, and the web page can be refreshed.
No. It does not install, update, or modify anything.
Linux kernel builds produce lines like CC, LD, OBJCOPY, and final bzImage. They are common in embedded and kernel development CI.
This module generates similar output for testing log parsers or creating build-pipeline demos without compiling the kernel.
Popular questions and answers from Stack Overflow related to kernel compile.
Steps: 1) make menuconfig to configure, 2) make -j$(nproc) to compile, 3) make modules_install, 4) make install. Ensure you have build-essential, libncurses-dev, and flex installed.
CC means compiling C source to object file. LD means linking object files. AR creates archives. OBJCOPY copies/transforms object files. These show the build progress of different kernel components.
Use make -j$(nproc) for parallel builds. Use ccache for repeat builds: export CC="ccache gcc". Build only needed modules. Use tmpfs for build directory. Consider distcc for distributed builds.
menuconfig: ncurses text UI (works in terminal). xconfig: Qt-based GUI (needs X server). nconfig: newer ncurses UI. oldconfig: update config for new kernel. All produce .config file.
Use make M=path/to/module for out-of-tree modules. For in-tree: make modules SUBDIRS=drivers/net/. Or use make path/to/module.ko for single module.
Copy running config: zcat /proc/config.gz > .config (if enabled) or cp /boot/config-$(uname -r) .config. Then make olddefconfig to update for new kernel version.
vmlinux: uncompressed kernel ELF. bzImage: compressed bootable image (>512KB). zImage: compressed bootable (<512KB, legacy). Modern systems use bzImage. vmlinux used for debugging.
Install kernel headers: apt install linux-headers-$(uname -r). For build deps: apt install build-essential libncurses-dev flex bison libssl-dev libelf-dev. Clean with make mrproper.
Use patch command: patch -p1 < patchfile.patch. Dry run first with --dry-run. For git-format patches: git am patchfile.patch. Revert with patch -R -p1 < patchfile.patch.
Use mkinitcpio (Arch), mkinitramfs (Debian/Ubuntu), or dracut (Fedora/RHEL). Example: mkinitramfs -o /boot/initrd.img-VERSION VERSION. Include necessary modules for boot device.
Popular video tutorials to learn more about kernel compile.
Learn Linux TV
Step-by-step guide to compiling a custom Linux kernel. Covers configuration, compilation, module building, and installation.
Watch on YouTubeLinux Foundation
Introduction to kernel development including source code structure, building modules, and understanding the kernel build system.
Watch on YouTube
