Information about the OpenCores OpenRISC project, an open source 32 bit RISC processor with GNU tool support and simulator.
I have written a step-by-step guide for installing the tools and simulator on a SuSE Linux platform for running ucLinux. This is a little out of date now but still may be useful.
I have also written a step-by-step guide for installing the tools (GCC 3.4.2) on various platforms for using eCos on the OpenRISC target. The older version for building GCC 3.2.3 can be found here
To build GCC 3.4.4 and Binutils 2.16.1, follow this step-by-step guide.
To build GCC 3.4.4 and Binutils 2.11.93, follow this step-by-step guide.
Patches for OR1K CVS needed on code downloaded around 04 Mar 2004 can be found here:
This patch for GDB can be safely applied for all compilers:
This patch for newlib provides the bare minimum to get it to compile using GCC 3.4.3: