Summary
The toolchain is always your starting point: everything that follows from that is dependent on having a working, reliable toolchain.
Most embedded build environments are based on a cross development toolchain which creates a clear separation between a powerful host computer building the code and a target computer on which it runs. The toolchain itself consists of the GNU binutils, a C compiler from the GNU compiler collection – and quite likely the C++ compiler as well – plus one of the C libraries I have described. Usually the GNU debugger, gdb, will be generated at this point, which I describe in Chapter 12, Debugging with GDB. Also, keep a watch out for the Clang compiler, as it will develop over the next few years.
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