我对makefile非常陌生。我正在阅读GNU-make手册,但是我仍然不清楚如何在编译器和链接器被隐式规则执行时设置参数。 这是生成文件的一部分,注意,是如何编译和链接都没有明确的声明:Makefile:为由隐式规则执行的命令设置参数(CFLAGS,LDFLAGS)
.PHONY: $(TARGET) build_libs
all: build_libs $(TARGET)
$(TARGET):
@echo "============> building target: $(TARGET)"
@$(MAKE) -C $(SDK_PATH)/VP_SDK/Build $(TMP_SDK_FLAGS) $(SDK_FLAGS) $(MAKECMDGOALS) USE_LINUX=yes
mv $(ARDRONE_TARGET_DIR)/ardrone_testing_tool $(TARGET)
mv $(TARGET) $(ARDRONE_TARGET_DIR)/
@echo "============> end building target: $(TARGET)"
$(MAKECMDGOALS): build_libs
@echo "============> making cmd goals"
@$(MAKE) -C $(SDK_PATH)/VP_SDK/Build $(TMP_SDK_FLAGS) $(SDK_FLAGS) $(MAKECMDGOALS) USE_LINUX=yes
@echo "============> end making cmd goals"
build_libs:
@echo "============> building libs"
@$(MAKE) -C $(SDK_PATH)/Soft/Build $(TMP_SDK_FLAGS) $(SDK_FLAGS) $(MAKECMDGOALS) USE_LINUX=yes
@echo "============> end building libs"
这Makefile将源文件和库的可执行文件。但我想将它们编译成共享库。因为我(我想)必须将-fPIC
参数添加到cc
和-shared
和-soname
参数到ld
。我试过CFLAGS=-fPIC
和LDFLAGS=-shared -soname foo
,这没有奏效。有没有人建议如何获得共享的libarary?如果您需要更多信息,请直接询问。提前致谢!
UPDATE:在$(SDK_PATH)生成文件/柔和/编译:
GEN_CUSTOM_HEADER:=../Common/generated_custom.h
include custom.makefile
include config.makefile
GNUTOOLS_PATH=/usr/local/$(GNUTOOLS_VERSION)/bin
define ADD_RULE_TEMPLATE
TO_BUILD+=build_$(1)
endef
# Add rule for each target
$(foreach target,$(TARGETS),$(eval $(call ADD_RULE_TEMPLATE,$(target))))
.PHONY: linux_sample svn_update $(TO_BUILD) build_libs $(MAKECMDGOALS)
all: $(GEN_CUSTOM_HEADER) build_libs $(TO_BUILD)
$(GEN_CUSTOM_HEADER): custom.makefile
@echo "#ifndef _GENERATED_CUSTOM_CONFIGURATION_H_" > [email protected]
@echo "#define _GENERATED_CUSTOM_CONFIGURATION_H_" >> [email protected]
@echo >> [email protected]
@echo "#if defined(BR2_PACKAGE_BCM4318_AP)" >> [email protected]
@echo "# define AP" >> [email protected]
@echo "#else" >> [email protected]
@echo "# define STA" >> [email protected]
@echo "#endif" >> [email protected]
@echo "#define CURRENT_NUM_VERSION_SOFT \"$(MAJOR_VERSION).$(MINOR_VERSION).$(MODIF_VERSION)\"" >> [email protected]
@echo "#define CURRENT_BUILD_DATE \"$(shell date +%F\ %H:%M)\"" >> [email protected]
@echo >> [email protected]
ifeq ("$(VIDEO_YUV)","yes")
@echo "#define USE_VIDEO_YUV" >> [email protected]
endif
ifeq ("$(RECORD_VISION_DATA)","yes")
@echo "#define RECORD_VISION_DATA" >> [email protected]
endif
@echo >> [email protected]
@echo "#define WIFI_NETWORK_NAME \"$(WIFI_NETWORK_NAME)\"" >> [email protected]
@echo "#define WIFI_BROADCAST \"$(WIFI_BROADCAST)\"" >> [email protected]
@echo "#define WIFI_ARDRONE_IP \"$(WIFI_ARDRONE_IP)\"" >> [email protected]
@echo >> [email protected]
@echo "#if defined(__linux__) || defined(USE_MINGW32)" >> [email protected]
@echo "# define WIFI_MOBILE_IP \"$(WIFI_MOBILE_IP)\"" >> [email protected]
@echo "# define WIRED_ITFNAME \"$(WIRED_ITFNAME)\"" >> [email protected]
@echo "#endif // ! __linux__" >> [email protected]
@echo >> [email protected]
@echo >> [email protected]
@echo "#endif // ! _GENERATED_CUSTOM_CONFIGURATION_H_" >> [email protected]
ifneq "$(MAKECMDGOALS)" ""
ifneq "$(MAKECMDGOALS)" "clean"
ifneq "$(MAKECMDGOALS)" "update"
$(MAKECMDGOALS):
@echo -e "\nCannot make what you ask me to do :-("
else
$(MAKECMDGOALS): svn_update
endif
endif
endif
$(MAKECMDGOALS): build_libs $(TO_BUILD)
checkpackages:
ifeq ($(IPHONE_MODE),yes)
sh $(shell pwd)/check_dependencies.sh iphone RELEASE_BUILD=$(RELEASE_BUILD) $(MAKECMDGOALS)
else
ifeq ($(USE_LINUX),yes)
sh $(shell pwd)/check_dependencies.sh static RELEASE_BUILD=$(RELEASE_BUILD) $(MAKECMDGOALS)
else
ifeq ($(USE_ANDROID),yes)
sh $(shell pwd)/check_dependencies.sh android_no_neon RELEASE_BUILD=$(RELEASE_BUILD) $(MAKECMDGOALS)
endif
endif
endif
define GENERIC_RULES_TEMPLATE
build_$(1):
@$(MAKE) -C $(1) $(MAKECMDGOALS)
endef
$(foreach target,$(TARGETS),$(eval $(call GENERIC_RULES_TEMPLATE,$(target))))
build_libs: checkpackages
@$(MAKE) PC_TARGET=yes USE_ARDRONE_TOOL=yes TARGET=pc_ USE_MINGW32=no -C ../Lib/Build $(MAKECMDGOALS)
@$(MAKE) PC_TARGET=yes USE_ARDRONE_TOOL=no TARGET=pc_ USE_MINGW32=no -C ../Lib/Build $(MAKECMDGOALS)
ifeq ("$(MINGW32_MODE)","yes")
ifeq ($(shell which i586-mingw32msvc-gcc 2> /dev/null),)
$(warning You need MinGW32 to compile My Ardrone lib for Windows if you want. (under Debian: apt-get install mingw32))
else
# @$(MAKE) PC_TARGET=yes TARGET=mingw32_ USE_MINGW32=yes TMP_SDK_FLAGS="USE_MINGW32=yes NO_COM=yes USE_BLUEZ=no" -C ../Lib/Build $(MAKECMDGOALS)
# @$(MAKE) PC_TARGET=yes TARGET=emb_mingw32_ USE_MINGW32=yes CONTROL_DLL=yes TMP_SDK_FLAGS="USE_MINGW32=yes NO_COM=yes USE_BLUEZ=no" -C ../Lib/Build $(MAKECMDGOALS)
endif
endif
ifeq ($(WIIMOTE_SUPPORT),yes)
# @$(MAKE) PC_TARGET=yes TARGET=pc_ TMP_SDK_FLAGS="USE_BLUEZ=yes" -C ../Lib/libcwiid $(MAKECMDGOALS)
endif
define svn_update_template
cd ../.. ; \
echo "Checking out tag $(1) of $(2) ..." ; \
if [ $(1) != head ] ; then \
svn co -r $(1) https://svn.ardrone.org/repo/ARDrone_API/$(2) ; \
else \
svn co https://svn.ardrone.org/repo/ARDrone_API/$(2) ; \
fi ; \
cd Soft/Build ;
endef
svn_update:
@-$(call svn_update_template,$(SDK_VERSION),ARDroneLib)
如果custom.makefile和config.makefile需要,你可以在这里找到它们:http://pastebin.com/H8PNKKhu
UPDATE 2:我刚刚发现这个,位于$(SDK_PATH)/VP_SDK/Build
:http://pastebin.com/3knnSkmy
这将有助于你向我们展示了在'$(SDK_PATH)makefile文件/柔和/ Build'。 – Beta 2012-08-05 20:33:18
感谢您的回复,将该文件添加到我的文章。 – laobeylu 2012-08-06 08:29:43
这是一些免费软件(或开源)吗?如果是这样,你可以将我们链接到项目中,以便我们可以在源代码树中搜索吗? – 2012-08-06 23:00:06