From Fedora Project Wiki

Embedded Development

Fedora 10 includes a range of packages to support development of embedded applications on various targets. There is broad support for the AVR and related parts as well as for the Microchip PIC. In addition, there are packages to support development on older, less popular parts such as the Z80, 8051, and others.

piklab

Fedora 10 includes version 3.5.10 of the popular IDE piklab. This version now supports the Microchip ICD2 and PICkit in-circuit debuggers, as well as a number of other improvements. Piklab now supports the following toolchains; gputils, C30 and C18, PICC, JAL, BoostC, CCS, MPC and CC5X. Many of the toolchains use Windows executables via Wine. See http://piklab.sourceforge.net/ for complete details.

sdcc

Version 2.8.0 of the Small Device C Compiler is included in Fedora 10. This version offers a number of improvements to the version in Fedora 9. Some of these changes will result in changes to source code, so users should review the SDCC manual carefully for their target. In addition, due to some conflicts, all the executable names have been prefixed with sdcc-, which will require changes to makefiles. See the SDCC page at http://sdcc.sourceforge.net/ for complete details.