Dear all,

I have some questions about u-boot Makefile.

Could you help me ?

Thx!

The below is my question.

First, we do make _depend for those $(SUBDIRS) $(CPUDIR) $(LDSCRIPT_MAKEFILE_DIR)

depend dep: $(TIMESTAMP_FILE) $(VERSION_FILE) \ $(obj)include/autoconf.mk \ $(obj)include/generated/generic-asm-offsets.h \ $(obj)include/generated/asm-offsets.h for dir in $(SUBDIRS) $(CPUDIR) $(LDSCRIPT_MAKEFILE_DIR) ; do \ $(MAKE) -C $$dir _depend ; done

after we already generated the .depend file in those dirs.

$(SUBDIRS): depend $(MAKE) -C $@ all

That would do make action in SUBDIRS dir. But why we also sinclude .depend in those Makefile which is base on those dir ? I regard that we already generated before.

And another questions, how does the other sub-dir(eg, libs) .depend file generated ? is that generated by rules.mk which is include every sub-dirs?

Best regards