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I am trying to understand a second level makefile of uboot (this
makefile was in a sub directory)
a) What is the difference between $(COBJS:.o=.c) and COBJS := test_main.o
b) What is the meaning of $(call cmd_link_o_target, $(OBJS)). What is
the cmd_link_o_target and what is the call statement doing
c) Does this line creating 2 targets ?
ALL := $(obj).depend $(LIB)
===================================Makefile===================
include $(TOPDIR)/config.mk
LIB = $(obj)libtest.o
SOBJS := test.o
COBJS := test_main.o
COBJS += diagnostic.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS))
ALL := $(obj).depend $(LIB)
all: $(ALL)
$(LIB): $(OBJS)
$(call cmd_link_o_target, $(OBJS))
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################
--
-mj
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