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Linux-Tiny
(Last updated: Nov. 23, 2005)

The -tiny tree is a series of patches against the 2.6 mainline Linux kernel to reduce its memory and disk footprint, as well as to add features to aid working on small systems. Target users are developers of embedded system and users of small or legacy machines such as 386s and handhelds.

Just about all features are optional via the kernel configuration system, and are available as separate patches. Linux-tiny by default will build a kernel practically identical to mainline, but custom configurations with full console, disk, and network support can be booted on standard hardware with as little as 2MB of RAM.

Many features from Linux-tiny have already been integrated into the 2.6 mainline kernel. Some of the features that remain include:
  • configurable swap partition, IDE interfaces, line disciplines...
  • SLOB: a simple and space-efficient replacement for the SLAB allocator
  • optional support for aio, sysfs, sysenter, ptrace, dnotify, vm86, core dumps
  • /proc/kmalloc for detailed tracking of memory usage
  • a tool for counting uses of inline functions
  • a tool for comparing function sizes between kernel builds
  • kgdb for full symbolic kernel debugging
  • kgdb-over-ethernet for debugging without serial ports

Linux-tiny is maintained by Matt Mackall, who works for the Consumer Electronics Linux Forum (CELF) as principal developer.

Portions of this page were excepted from the Linux-tiny page, here.

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