On Thu, Feb 04, 2021 at 04:42:41PM -0800, Andrii Nakryiko wrote: > On Thu, Feb 4, 2021 at 1:20 PM Jiri Olsa <jolsa@xxxxxxxxxx> wrote: > > > > We want this clean to be called from tree's root clean > > and that one is silent if there's nothing to clean. > > > > Adding check for all object to clean and display CLEAN > > messages only if there are objects to remove. > > > > Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx> > > --- > > tools/bpf/resolve_btfids/Makefile | 17 ++++++++++++----- > > 1 file changed, 12 insertions(+), 5 deletions(-) > > > > diff --git a/tools/bpf/resolve_btfids/Makefile b/tools/bpf/resolve_btfids/Makefile > > index b780b3a9fb07..3007cfabf5e6 100644 > > --- a/tools/bpf/resolve_btfids/Makefile > > +++ b/tools/bpf/resolve_btfids/Makefile > > @@ -64,13 +64,20 @@ $(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN) > > $(call msg,LINK,$@) > > $(Q)$(CC) $(BINARY_IN) $(LDFLAGS) -o $@ $(BPFOBJ) $(SUBCMDOBJ) $(LIBS) > > > > +clean_objects := $(wildcard $(OUTPUT)/*.o \ > > + $(OUTPUT)/.*.o.cmd \ > > + $(OUTPUT)/.*.o.d \ > > + $(OUTPUT)/libbpf \ > > + $(OUTPUT)/libsubcmd \ > > + $(OUTPUT)/resolve_btfids) > > + > > +clean: > > + > > +ifneq ($(clean_objects),) > > clean: fixdep-clean > > this looks a bit weird, declaring clean twice. Wouldn't moving ifneq > inside the clean work just fine? it has the fixdep-clean dependency we don't want to run if clean_objects is not defined.. I could move the empty clean to the the else path jirka --- diff --git a/tools/bpf/resolve_btfids/Makefile b/tools/bpf/resolve_btfids/Makefile index 1d46a247ec95..be09ec4f03ff 100644 --- a/tools/bpf/resolve_btfids/Makefile +++ b/tools/bpf/resolve_btfids/Makefile @@ -64,13 +64,20 @@ $(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN) $(call msg,LINK,$@) $(Q)$(CC) $(BINARY_IN) $(LDFLAGS) -o $@ $(BPFOBJ) $(SUBCMDOBJ) $(LIBS) +clean_objects := $(wildcard $(OUTPUT)/*.o \ + $(OUTPUT)/.*.o.cmd \ + $(OUTPUT)/.*.o.d \ + $(OUTPUT)/libbpf \ + $(OUTPUT)/libsubcmd \ + $(OUTPUT)/resolve_btfids) + +ifneq ($(clean_objects),) clean: fixdep-clean $(call msg,CLEAN,$(BINARY)) - $(Q)$(RM) -f $(BINARY); \ - $(RM) -rf $(if $(OUTPUT),$(OUTPUT),.)/feature; \ - $(RM) -rf $(OUTPUT)/libbpf; \ - $(RM) -rf $(OUTPUT)/libsubcmd; \ - find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM) + $(Q)$(RM) -rf $(clean_objects) +else +clean: +endif tags: $(call msg,GEN,,tags)
