Android.mk与Linux Makefile研究心得

一、Android NDK中列出的部分库文件：




|-- crtbegin_dynamic.o


|-- crtbegin_static.o


|-- crtend_android.o



|-- libc.a




|-- libc.so




|-- libdl.so




|-- liblog.so




|-- libm.a




|-- libm.so




|-- libstdc++.a




|-- libstdc++.so




|-- libthread_db.a




|-- libthread_db.so




`-- libz.so











二、libstdc++.a编译过程分析





$ ar x libstdc++.a


libstdc++.a  





|-- new.o


|-- one_time_construction.o


|-- pure_virtual.o


`-- typeinfo.o











target thumb C++: libstdc++ <= bionic/libstdc++/src/one_time_construction.cpp


prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-g++  -I system/core/include   -I hardware/libhardware/include   -I hardware/libhardware_legacy/include   -I hardware/ril/include   -I dalvik/libnativehelper/include   -I frameworks/base/include   -I frameworks/base/opengl/include   -I external/skia/include   -I out/target/product/generic/obj/include   -I bionic/libc/arch-arm/include   -I bionic/libc/include   -I bionic/libstdc++/include   -I bionic/libc/kernel/common   -I bionic/libc/kernel/arch-arm   -I bionic/libm/include   -I bionic/libm/include/arch/arm   -I bionic/libthread_db/include   -I bionic/libstdc++   -I out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates  -c  -fno-exceptions -Wno-multichar -msoft-float -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums -march=armv5te -mtune=xscale  -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ -include system/core/include/arch/linux-arm/AndroidConfig.h -I system/core/include/arch/linux-arm/ -mthumb-interwork -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Werror=return-type -DSK_RELEASE -DNDEBUG -g -Wstrict-aliasing=2 -finline-functions -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers -DNDEBUG -UDEBUG -fvisibility-inlines-hidden  -Werror=return-type  -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64  -fno-rtti    -MD -o out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/src/one_time_construction.o bionic/libstdc++/src/one_time_construction.cpp


target thumb C++: libstdc++ <= bionic/libstdc++/src/new.cpp


prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-g++  -I system/core/include   -I hardware/libhardware/include   -I hardware/libhardware_legacy/include   -I hardware/ril/include   -I dalvik/libnativehelper/include   -I frameworks/base/include   -I frameworks/base/opengl/include   -I external/skia/include   -I out/target/product/generic/obj/include   -I bionic/libc/arch-arm/include   -I bionic/libc/include   -I bionic/libstdc++/include   -I bionic/libc/kernel/common   -I bionic/libc/kernel/arch-arm   -I bionic/libm/include   -I bionic/libm/include/arch/arm   -I bionic/libthread_db/include   -I bionic/libstdc++   -I out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates  -c  -fno-exceptions -Wno-multichar -msoft-float -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums -march=armv5te -mtune=xscale  -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ -include system/core/include/arch/linux-arm/AndroidConfig.h -I system/core/include/arch/linux-arm/ -mthumb-interwork -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Werror=return-type -DSK_RELEASE -DNDEBUG -g -Wstrict-aliasing=2 -finline-functions -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers -DNDEBUG -UDEBUG -fvisibility-inlines-hidden  -Werror=return-type  -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64  -fno-rtti    -MD -o out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/src/new.o bionic/libstdc++/src/new.cpp


target thumb C++: libstdc++ <= bionic/libstdc++/src/pure_virtual.cpp


prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-g++  -I system/core/include   -I hardware/libhardware/include   -I hardware/libhardware_legacy/include   -I hardware/ril/include   -I dalvik/libnativehelper/include   -I frameworks/base/include   -I frameworks/base/opengl/include   -I external/skia/include   -I out/target/product/generic/obj/include   -I bionic/libc/arch-arm/include   -I bionic/libc/include   -I bionic/libstdc++/include   -I bionic/libc/kernel/common   -I bionic/libc/kernel/arch-arm   -I bionic/libm/include   -I bionic/libm/include/arch/arm   -I bionic/libthread_db/include   -I bionic/libstdc++   -I out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates  -c  -fno-exceptions -Wno-multichar -msoft-float -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums -march=armv5te -mtune=xscale  -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ -include system/core/include/arch/linux-arm/AndroidConfig.h -I system/core/include/arch/linux-arm/ -mthumb-interwork -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Werror=return-type -DSK_RELEASE -DNDEBUG -g -Wstrict-aliasing=2 -finline-functions -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers -DNDEBUG -UDEBUG -fvisibility-inlines-hidden  -Werror=return-type  -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64  -fno-rtti    -MD -o out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/src/pure_virtual.o bionic/libstdc++/src/pure_virtual.cpp


target thumb C++: libstdc++ <= bionic/libstdc++/src/typeinfo.cpp


prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-g++  -I system/core/include   -I hardware/libhardware/include   -I hardware/libhardware_legacy/include   -I hardware/ril/include   -I dalvik/libnativehelper/include   -I frameworks/base/include   -I frameworks/base/opengl/include   -I external/skia/include   -I out/target/product/generic/obj/include   -I bionic/libc/arch-arm/include   -I bionic/libc/include   -I bionic/libstdc++/include   -I bionic/libc/kernel/common   -I bionic/libc/kernel/arch-arm   -I bionic/libm/include   -I bionic/libm/include/arch/arm   -I bionic/libthread_db/include   -I bionic/libstdc++   -I out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates  -c  -fno-exceptions -Wno-multichar -msoft-float -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums -march=armv5te -mtune=xscale  -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ -include system/core/include/arch/linux-arm/AndroidConfig.h -I system/core/include/arch/linux-arm/ -mthumb-interwork -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Werror=return-type -DSK_RELEASE -DNDEBUG -g -Wstrict-aliasing=2 -finline-functions -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers -DNDEBUG -UDEBUG -fvisibility-inlines-hidden  -Werror=return-type  -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64  -fno-rtti    -MD -o out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/src/typeinfo.o bionic/libstdc++/src/typeinfo.cpp


target StaticLib: libstdc++ (out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/libstdc++.a)


prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-ar crs  out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/libstdc++.a out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/src/one_time_construction.o out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/src/new.o out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/src/pure_virtual.o out/target/product/generic/obj/STATIC_LIBRARIES/libstdc++_intermediates/src/typeinfo.o









三、libstdc++.so的编译过程分析








target thumb C++




: libstdc++ <= bionic/libstdc++/src/one_time_construction.cpp






prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-g++ 




-I system/core/include   




-I hardware/libhardware/include   




-I hardware/libhardware_legacy/include   




-I hardware/ril/include 




-I dalvik/libnativehelper/include 




-I frameworks/base/include   




-I frameworks/base/opengl/include   




-I external/skia/include   




-I out/target/product/generic/obj/include   




-I bionic/libc/arch-arm/include   




-I bionic/libc/include   




-I bionic/libstdc++/include   




-I bionic/libc/kernel/common   




-I bionic/libc/kernel/arch-arm   




-I bionic/libm/include   




-I bionic/libm/include/arch/arm  




-I bionic/libthread_db/include   




-I bionic/libstdc++   




-I out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates  




-c  -fno-exceptions -Wno-multichar -msoft-float -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums 




-march=armv5te -mtune=xscale  -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ 




-include system/core/include/arch/linux-arm/AndroidConfig.h 




-I system/core/include/arch/linux-arm/ -mthumb-interwork -DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Werror=return-type -DSK_RELEASE -DNDEBUG




-g -Wstrict-aliasing=2 -finline-functions -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop 




-frename-registers -DNDEBUG -UDEBUG -fvisibility-inlines-hidden  -Werror=return-type  -mthumb -Os -fomit-frame-pointer 




-fno-strict-aliasing -finline-limit=64  -fno-rtti    -MD 




-o out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/src/one_time_construction.o bionic/libstdc++/src/one_time_construction.cpp







target thumb C++




: libstdc++ <= bionic/libstdc++/src/new.cpp








prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-g++




-I system/core/include  




-I hardware/libhardware/include   




-I hardware/libhardware_legacy/include  




-I hardware/ril/include   




-I dalvik/libnativehelper/include   




-I frameworks/base/include   




-I frameworks/base/opengl/include   




-I external/skia/include   




-I out/target/product/generic/obj/include   




-I bionic/libc/arch-arm/include   




-I bionic/libc/include   




-I bionic/libstdc++/include   




-I bionic/libc/kernel/common  




-I bionic/libc/kernel/arch-arm   




-I bionic/libm/include   




-I bionic/libm/include/arch/arm   




-I bionic/libthread_db/include  




-I bionic/libstdc++   




-I out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates  




-c  -fno-exceptions -Wno-multichar -msoft-float -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums -march=armv5te 




-mtune=xscale  -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ 




-include system/core/include/arch/linux-arm/AndroidConfig.h 




-I system/core/include/arch/linux-arm/ -mthumb-interwork 




-DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Werror=return-type -DSK_RELEASE -DNDEBUG 




-g -Wstrict-aliasing=2 -finline-functions -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop 




-frename-registers -DNDEBUG -UDEBUG -fvisibility-inlines-hidden  -Werror=return-type  -mthumb -Os -fomit-frame-pointer 




-fno-strict-aliasing -finline-limit=64  -fno-rtti    -MD 




-o out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/src/new.o bionic/libstdc++/src/new.cpp







target thumb C++




: libstdc++ <= bionic/libstdc++/src/pure_virtual.cpp








prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-g++  




-I system/core/include   -I hardware/libhardware/include   




-I hardware/libhardware_legacy/include   




-I hardware/ril/include   




-I dalvik/libnativehelper/include   




-I frameworks/base/include   




-I frameworks/base/opengl/include   




-I external/skia/include   




-I out/target/product/generic/obj/include   




-I bionic/libc/arch-arm/include   




-I bionic/libc/include   




-I bionic/libstdc++/include  




-I bionic/libc/kernel/common   




-I bionic/libc/kernel/arch-arm   




-I bionic/libm/include   




-I bionic/libm/include/arch/arm   




-I bionic/libthread_db/include   -I bionic/libstdc++   




-I out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates  




-c  -fno-exceptions -Wno-multichar -msoft-float -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums 




-march=armv5te -mtune=xscale  -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ 




-include system/core/include/arch/linux-arm/AndroidConfig.h -I system/core/include/arch/linux-arm/ -mthumb-interwork 




-DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Werror=return-type -DSK_RELEASE -DNDEBUG 




-g -Wstrict-aliasing=2 -finline-functions -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop 




-frename-registers -DNDEBUG -UDEBUG -fvisibility-inlines-hidden  -Werror=return-type  -mthumb -Os -fomit-frame-pointer 




-fno-strict-aliasing -finline-limit=64  -fno-rtti    -MD 




-o out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/src/pure_virtual.o bionic/libstdc++/src/pure_virtual.cpp







target thumb C++




: libstdc++ <= bionic/libstdc++/src/typeinfo.cpp








prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-g++  




-I system/core/include   




-I hardware/libhardware/include   




-I hardware/libhardware_legacy/include   




-I hardware/ril/include   




-I dalvik/libnativehelper/include   




-I frameworks/base/include   




-I frameworks/base/opengl/include   




-I external/skia/include   




-I out/target/product/generic/obj/include   




-I bionic/libc/arch-arm/include   




-I bionic/libc/include   




-I bionic/libstdc++/include   




-I bionic/libc/kernel/common   




-I bionic/libc/kernel/arch-arm   




-I bionic/libm/include   




-I bionic/libm/include/arch/arm   




-I bionic/libthread_db/include   




-I bionic/libstdc++  




-I out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates  




-c  -fno-exceptions -Wno-multichar -msoft-float -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-short-enums -march=armv5te -mtune=xscale  




-D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5TE__ 




-include system/core/include/arch/linux-arm/AndroidConfig.h -I system/core/include/arch/linux-arm/ -mthumb-interwork 




-DANDROID -fmessage-length=0 -W -Wall -Wno-unused -Werror=return-type -DSK_RELEASE -DNDEBUG 




-g -Wstrict-aliasing=2 -finline-functions -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop 




-frename-registers -DNDEBUG -UDEBUG -fvisibility-inlines-hidden  -Werror=return-type  -mthumb -Os -fomit-frame-pointer 




-fno-strict-aliasing -finline-limit=64  -fno-rtti    -MD 




-o out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/src/typeinfo.o bionic/libstdc++/src/typeinfo.cpp







target SharedLib




: libstdc++ (out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/LINKED/libstdc++.so)








prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-g++ 




-nostdlib -Wl,-soname,libstdc++.so -Wl,-T,build/core/armelf.xsc -Wl,--gc-sections -Wl,-shared,-Bsymbolic 




-Lout/target/product/generic/obj/lib    




out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/src/one_time_construction.o 




out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/src/new.o 




out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/src/pure_virtual.o 




out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/src/typeinfo.o         




-Wl,--whole-archive   -Wl,--no-whole-archive   -lc  




-o out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/LINKED/libstdc++.so  




-Wl,--no-undefined /home/san/Download/android_src/prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/../lib/gcc/arm-eabi/4.2.1/interwork/libgcc.a







target Prelink




: libstdc++ (out/target/product/generic/symbols/system/lib/libstdc++.so)







out/host/linux-x86/bin/apriori 








--prelinkmap build/core/prelink-linux-arm.map --locals-only 




--quiet out/target/product/generic/obj/SHARED_LIBRARIES/libstdc++_intermediates/LINKED/libstdc++.so 




--output out/target/product/generic/symbols/system/lib/libstdc++.so








target Strip




: libstdc++ (out/target/product/generic/obj/lib/libstdc++.so)







out/host/linux-x86/bin/soslim 








--strip --shady --quiet out/target/product/generic/symbols/system/lib/libstdc++.so 




--outfile out/target/product/generic/obj/lib/libstdc++.so







四、Android.mk文件内容











五、Android.mk改写成linux Makefile



六、编译成静态库和动态库的Makefile的主要区别