Hi,

I try to compile L4 kernel on x86 just to start with, but ¨make hello¨ results in an error in linking as follows: /usr/bin/ld: cannot find -lroot.o

I was unable to locate this module manually. Any ideas?

you need to build the core system components first before building hello. your problem will go away if you do a "make" in the top level l4 directory first not "make hello", sounds like the build system needs some dependency check fixing here.

in the top level l4 directory

make config ... [*] Use roottask instead of RMGR (WIP + EXPERIMENTAL) ...

Atleast for me the current CVS will not build if roottask is not set.

make

which also builds pkg/hello (result in pkg/hello/server/src/OBJ-x86_586-l4v2/hello)

if you want to play with hello only - after the initial make has completed - edit files below pkg/hello/ and do

make hello

in the top level l4 directory or

cd pkg/hello make

if you want to play with a minimal server outside of the l4 tree you need to export L4DIR and use the bid tools to set it up

cd /tmp export L4DIR=/home/l4/ (or where ever you put the l4 tree) mkdir myhello cd myhello $L4DIR/mk/tmpl/inst make

to get moving see $L4DIR/doc/bid-tut/

hofrat