【小e1开发板试用体验】分析程序架构三~/Share/SDK/et_app/makefile内容

本帖最后由 城东 于 2016-12-6 22:32 编辑

关于脚本的运行以及调用makefile之前的配置请看前文：https://bbs.elecfans.com/forum.ph ... &tid=1098353&extra=
上面说到运行脚本gen_misc.sh最后执行的make语句如下：
make BOOT=$boot APP=$app SPI_SPEED=$spi_speed SPI_MODE=$spi_mode SPI_SIZE_MAP=$spi_size_map
其中参数的具体值如下：
BOOT=new
APP=1
SPI_SPEED=40
SPI_MODE=QIO
SPI_SIZE_MAP=3

makefile才是编译最重要的一环，之前的都是起辅助作用，下面我们首先把makefile的内容贴出来，方便之后的分析：
#############################################################
# Required variables for each makefile
# Discard this section from all parent makefiles
# Expected variables (with automatic defaults):
#   CSRCS (all "C" files in the dir)
#   SUBDIRS (all subdirs with a Makefile)
#   GEN_LIBS - list of libs to be generated ()
#   GEN_IMAGES - list of object file images to be generated ()
#   GEN_BINS - list of binaries to be generated ()
#   COMPONENTS_xxx - a list of libs/objs in the form
#     subdir/lib to be extracted and rolled up into
#     a generated lib/image xxx.a ()
#
TARGET = eagle
#FLAVOR = release
FLAVOR = debug

#EXTRA_CCFLAGS += -u

ifndef PDIR # {
GEN_IMAGES= eagle.app.v6.out
GEN_BINS= eagle.app.v6.bin
SPECIAL_MKTARGETS=$(APP_MKTARGETS)
SUBDIRS=   
    user   
    sample_lib   
    driver

endif # } PDIR

LDDIR = $(SDK_PATH)/ld

CCFLAGS += -Os

TARGET_LDFLAGS =        
    -nostdlib        
    -Wl,-EL
    --longcalls
    --text-section-literals

ifeq ($(FLAVOR),debug)
    TARGET_LDFLAGS += -g -O2
endif

ifeq ($(FLAVOR),release)
    TARGET_LDFLAGS += -g -O0
endif

COMPONENTS_eagle.app.v6 =
    user/libuser.a  
    sample_lib/libsample.a   
    driver/libdriver.a

LINKFLAGS_eagle.app.v6 =
    -L$(SDK_PATH)/lib        
    -Wl,--gc-sections   
    -nostdlib   
    -T$(LD_FILE)   
    -Wl,--no-check-sections   
    -u call_user_start   
    -Wl,-static                        
    -Wl,--start-group                    
    -lminic
    -lgcc                    
    -lhal                    
    -lphy   
    -lpp   
    -ljson   
    -lpwm   
    -lnet80211   
    -lwpa   
    -lcrypto   
    -lmain   
    -lfreertos   
    -llwip   
    -lespconn
    -lsmartconfig
    -letilink   
    -lfac      
    -lairkiss
    $(DEP_LIBS_eagle.app.v6)                    
    -Wl,--end-group

DEPENDS_eagle.app.v6 =
                $(LD_FILE)
                $(LDDIR)/eagle.rom.addr.v6.ld

#############################################################
# Configuration i.e. compile options etc.
# Target specific stuff (defines etc.) goes in here!
# Generally values applying to a tree are captured in the
#   makefile at its root level - these are then overridden
#   for a subtree within the makefile rooted therein
#

#UNIVERSAL_TARGET_DEFINES =        

# Other potential configuration flags include:
#    -DTXRX_TXBUF_DEBUG
#    -DTXRX_RXBUF_DEBUG
#    -DWLAN_CONFIG_CCX
CONFIGURATION_DEFINES =    -DICACHE_FLASH

DEFINES +=               
    $(UNIVERSAL_TARGET_DEFINES)   
    $(CONFIGURATION_DEFINES)

DDEFINES +=               
    $(UNIVERSAL_TARGET_DEFINES)   
    $(CONFIGURATION_DEFINES)


#############################################################
# Recursion Magic - Don't touch this!!
#
# Each subtree potentially has an include directory
#   corresponding to the common APIs applicable to modules
#   rooted at that subtree. Accordingly, the INCLUDE PATH
#   of a module can only contain the include directories up
#   its parent path, and not its siblings
#
# Required for each makefile to inherit from the parent
#

INCLUDES := $(INCLUDES) -I $(PDIR)include
sinclude $(SDK_PATH)/Makefile

.PHONY: FORCE
FORCE: