Naming targets. ppc-405-linux?

[Dan Kegel <dkegel at ixiacom dot com>]

One good source of target tuples that are in use for gnu tools
seems to be the Debian 'archtable' file:
http://cvs.debian.org/dpkg/archtable?rev=1.21.2.4&cvsroot=dpkg

This handles a lot of chip variations, e.g.
i386-linux-gnu 

i486-linux-gnu 

i586-linux-gnu 

i686-linux-gnu
ppc	
powerpc
powerpcle
powerpc64
sh3-linux-gnu 

sh4-linux-gnu 
	
sh3eb-linux-gnu 
	
sh4eb-linux-gnu 
	

Yet there are more variations out in the field, for instance,
the ppc405, which can't run programs compiled for normal powerpc
(it has quirks that need workarounds).  And you can't configure
for ppc405-linux; binutils barfs on that.

For those chips which don't have standard targets, and which need
their own toolchains, it looks like
the way to go is to jam the specific chip type into the middle
(vendor) field of the target name, e.g.

ppc-405-linux

for an embedded Linux system with an IBM PPC405 chip.

Does that sound about right?
- Dan


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