On Tue, Apr 26, 2016 at 01:09:32PM +0200, Jesper Dangaard Brouer wrote: > It is not intuitive that 'make' must be run from the top level > directory with argument "samples/bpf/" to compile these eBPF samples. > > Introduce a kbuild make file trick that allow make to be run from the > "samples/bpf/" directory itself. It basically change to the top level > directory and call "make samples/bpf/" with the "/" slash after the > directory name. > > Also add a clean target that only cleans this directory, by taking > advantage of the kbuild external module setting M=$PWD. > > Signed-off-by: Jesper Dangaard Brouer <bro...@redhat.com> > --- > samples/bpf/Makefile | 8 ++++++++ > samples/bpf/README.rst | 3 +++ > 2 files changed, 11 insertions(+) > > diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile > index 7ac66f5bbbf5..7370dfee482f 100644 > --- a/samples/bpf/Makefile > +++ b/samples/bpf/Makefile > @@ -85,6 +85,14 @@ HOSTLOADLIBES_test_overhead += -lelf -lrt > # make samples/bpf/ LLC=~/git/llvm/build/bin/llc > LLC ?= llc > > +# Trick to allow make to be run from this directory > +all: > + $(MAKE) -C ../../ $$PWD/ > + > +clean: > + $(MAKE) -C ../../ M=$$PWD clean > + @rm -f *~ > +
nice trick!
