fyi I know nothing about this free software and fyio this isn't an ad for this company but I noticed that this companyy sells tiny xscale based linux finger-sized machines and provided a lot of tools, source, etc. including toolchains. Check out these links and see what you think:

homepage:
http://www.gumstix.com/index.html

development stuff:
http://docwiki.gumstix.org/Getting_started

<<I'm an A1200 user>>

Best,

Stephen