Over the last couple of weeks I've been working on a set of secure-boot tools. Originally, this project was intended as a quick implementation of an EFI-image-signing utility, but it has since grown a little. I've now added code to help maintain the UEFI signature databases from within a running OS.
Most of the components of the 64-bit ARM toolchain have been released, so I've put together some details on building a cross compiler for aarch64. At present, this is only binutils & compiler (ie, no libc), so is probably not useful for applications. However, I have a 64-bit ARM kernel building without any trouble.
On Cell/B.E. machines, there are two different types of processor: The PowerPC Processing Element (PPE), and the Synergistic Processing Elements (SPEs). The PPE can run standard PowerPC applications, but the SPEs require a special compiler that supports their instruction set. This article describes how to build a toolchain that will enable you to compile programs for the SPEs.
One of the much-less-well-known-than-should-be features of the GNU Bourne-Again Shell (bash) is its programmable completion functions. The default tab-completion can be extended to cover any number of external commands. For example:
You can use the
screen tool to share a console between
two users - this is useful for remote collaborative development, and
doesn't require nearly as much bandwidth as a desktop-sharing protocol