Question

看起来可能，但我的脚本会产生奇怪的结果：

LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

include $(LOCAL_PATH)/libos/Android.mk
include $(LOCAL_PATH)/libbase/Android.mk
include $(LOCAL_PATH)/utils/Android.mk

LOCAL_MODULE := native
include $(BUILD_SHARED_LIBRARY)

只有第一个包被正确解析，其他Android.mk文件正在奇数路径上被查询。建议？

更新：我破坏了我的建筑环境......在办公室没问题，但是在家里LOCAL_PATH：= $（调用my-dir）将LOCAL_PATH定义为NDK目录而不是项目目录。这是我的建筑批次：

set BASHPATH=K:\cygwin\bin\bash
set PROJECTDIR=/cygdrive/h/Alex/Alex/Work/Android/remote-android
set NDKDIR=/cygdrive/h/Alex/Programming_Docs/Android/android-ndk-r6/ndk-build
set APP_BUILD_SCRIPT=/cygdrive/h/Alex/Alex/Work/Android/project/jni/Android.mk
set DEV_ROOT=h:/Alex/Alex/Work/Android/project

%BASHPATH% --login -c "cd %PROJECTDIR% && %NDKDIR%"

更新：我完全不明白这件事是如何构成路径的。我收到路径错误，如“/cygdrive/d/project/jni//cygdrive/d/Soft/project/jni/libos/src/libos.cpp”。这是在我决定指定根目录中的所有文件之后Android.mk而不是包含子模块。

更新2：没有运气，这也不起作用：

LOCAL_PATH:= $(call my-dir)
# Include makefiles here.
include $(LOCAL_PATH)/libos/Android.mk
include $(LOCAL_PATH)/libbase/Android.mk
include $(LOCAL_PATH)/utils/Android.mk

# Clear variables here.
 include $(CLEAR_VARS)

Answer 1

这里很晚，但是如果有人读到这个问题，那么解决路径损坏问题的一种方法（指向jni中你的文件的ndk）就是在你的jni文件夹中：

include $(call all-subdir-makefiles)

然后在它的每个子文件夹中（在OP的情况下为libos，libbase和ustils）这种形式的Android.mk：

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_C_INCLUDES        := $(LOCAL_PATH)
LOCAL_MODULE            := utils
LOCAL_SRC_FILES         := one.c
LOCAL_SRC_FILES         += two.c

其中第二个Android.mk在jni文件夹中找到子文件夹中的one.c和two.c文件。

请注意尝试

LOCAL_PATH_BIS_WEIRD_OTHER_NAME := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_C_INCLUDES        := $(LOCAL_PATH_OTHER_FUNKY_NAME)
LOCAL_MODULE            := utils
LOCAL_SRC_FILES         := one.c
LOCAL_SRC_FILES         += two.c

将再次引发一个混乱的编译器，寻找ndk所在的源代码。

所以，在jni的每个子目录中以这种形式使用 LOCAL_PATH：= $（调用my-dir） include $（call all-subdir-makefiles）在jni本身，你应该没有问题。

希望这会对某人有所帮助。

编辑：发生此行为是因为包含$（CLEAR_VARS）不会删除LOCAL_PATH中保留的内容。

Answer 2

以下是我的表现方式。

有一点需要注意的是，我没有在构建目录中放置任何C ++源代码，因为大部分内容都与平台无关。这只是意味着LOCAL_PATH不是项目目录的子目录，而/ jni中的唯一文件是2 .mk文件。

无论如何，这里是一个完整的顶级Android.mk，其中一个包含了真实项目：

顶级：

LOCAL_PATH := $(abspath $(call my-dir)/../../../src)

# utility to create paths for included makefiles
local-rel-path = $(patsubst /%,%,$(subst $(LOCAL_PATH),,$(abspath $1)))

include $(CLEAR_VARS)

LOCAL_MODULE := NativeApp

LOCAL_LDLIBS := -lGLESv1_CM

# As opposed to "thumb"
LOCAL_ARM_MODE := arm

LOCAL_SRC_FILES :=

#
# includes
#
# Note that LOCAL_C_INCLUDE is relative to thr NDK root, unlike source paths
# (or you can just make 'em absolute)
#
STL_INC_DIR = /cygdrive/c/STLport-5.2.1/stlport

MY_LOCAL_C_INCLUDES := core satcalc bruce/bruce/inc bruce/gfx/inc bruce/ui/inc bruce/unzip bruce/libpng

LOCAL_C_INCLUDES := $(addprefix $(LOCAL_PATH)/,$(MY_LOCAL_C_INCLUDES)) $(STL_INC_DIR) 

ifeq ($(APP_OPTIM),debug)
# debug
LOCAL_CFLAGS = -DPLATFORM_ANDROID -D_DEBUG -fvisibility=hidden
else
#release
LOCAL_CFLAGS = -DPLATFORM_ANDROID -fvisibility=hidden
endif

LOCAL_STATIC_LIBRARIES := 

#
# Code
#
include $(LOCAL_PATH)/core/Android.mk
include $(LOCAL_PATH)/satcalc/Android.mk
include $(LOCAL_PATH)/bruce/bruce/src/Android.mk
include $(LOCAL_PATH)/bruce/gfx/src/Android.mk
include $(LOCAL_PATH)/bruce/ui/src/Android.mk
include $(LOCAL_PATH)/bruce/unzip/Android.mk
include $(LOCAL_PATH)/bruce/libpng/Android.mk

#
# Build it
#
include $(BUILD_SHARED_LIBRARY)

...还包含Android.mk：

MY_PATH = $(call my-dir)

MY_LOCAL = $(call local-rel-path, $(MY_PATH))

MY_SRC_FILES = Font.cpp Gfx2d_ogles.cpp SgaState.cpp \
        Sprite.cpp TImage.cpp TImageOgles.cpp 

LOCAL_SRC_FILES += $(addprefix $(MY_LOCAL)/,$(MY_SRC_FILES))

Answer 3

我的认可是这样的：

LOCAL_PATH:= $(call my-dir)

# Clear variables here.
include $(CLEAR_VARS)

# Current module settings.
LOCAL_MODULE := native
# setup some source files
LOCAL_SRC_FILES := file1.c file2.c
# setup some includes
LOCAL_C_INCLUDES := $(LOCAL_PATH)/libos/include
# setup the included libs for the main module
LOCAL_STATIC_LIBRARIES := libos libbase utils # note that order matters here

include $(BUILD_SHARED_LIBRARY)

# Include makefiles here. Its important that these 
# includes are done after the main module, explanation below.

# create a temp variable with the current path, because it 
# changes after each include
ZPATH := $(LOCAL_PATH)

include $(ZPATH)/libos/Android.mk
include $(ZPATH)/libbase/Android.mk
include $(ZPATH)/utils/Android.mk

注意，包括在设置当前模块变量后完成。这是必需的，因为每个include修改了LOCAL_PATH变量（实际上它修改了$（调用my-dir）返回的内容），这就是为什么包含必须在最后完成。

这将自动编译所有包含的模块（如果使用clean调用则清理），然后链接所有包含的库。

此设置已在真实项目中测试并正常运行。

从这里回答：https://docs.google.com/document/d/1jDmWgVgorTY_njX68juH5vt0KY_FXWgxkxmi2v_W_a4/edit

Answer 4

你走在正确的轨道上。这是将Android.mk文件包含在另一个文件中的正确方法 - 它实际上是Android make系统所必需的。需要注意的一点是，清除变量的行应该出现在 - 包括其他makefile之后，如下所示：

LOCAL_PATH:= $(call my-dir)

# Include makefiles here.
include $(LOCAL_PATH)/libos/Android.mk
include $(LOCAL_PATH)/libbase/Android.mk
include $(LOCAL_PATH)/utils/Android.mk

# Clear variables here.
include $(CLEAR_VARS)

# Final settings.
LOCAL_MODULE := native
include $(BUILD_SHARED_LIBRARY)

我还要提到您可能想要或可能不想设置的其他重要标志，包括以下内容（来自我的一个makefile的示例）：

# Settings.
LOCAL_C_INCLUDES             := $(MY_INCLUDES)
LOCAL_STATIC_LIBRARIES       := $(MY_MODULES) 
LOCAL_WHOLE_STATIC_LIBRARIES := $(MY_WHOLE_MODULES) 
LOCAL_LDLIBS                 := -lz -llog -lGLESv1_CM -lGLESv2 
LOCAL_ARM_MODE               := arm
LOCAL_MODULE                 := game

最后，我发现Android ndk中嵌入的文档特别有用。矿井位于以下位置：

android-ndk-r6/documentation.html

如果您还有其他问题，请与我们联系。希望这可以帮助！：）

Answer 5

这里的答案很晚，但我遇到了这个问题，这些解决方案都没有用。解决方案结果很简单：详细here，设置MY_LOCAL_PATH变量并每次重新分配LOCAL_PATH：

MY_LOCAL_PATH := $(call my-dir)

LOCAL_PATH := $(MY_LOCAL_PATH)

... declare one module

include $(LOCAL_PATH)/foo/Android.mk

LOCAL_PATH := $(MY_LOCAL_PATH)

... declare another module

Answer 6

我测试下面的代码确定。

# I want only second-level mk files, that is the direct sub-directories
# in the current path.
include $(wildcard */*/Android.mk)
# include $(call all-subdir-makefiles)  ## $(wildcard $(call my-dir)/*/Android.mk)
# include $(call all-makefiles-under,$(LOCAL_PATH))

Android.mk

# I dunno why it's an empty result for $(call all-subdir-makefiles).
# $(info [^-^ print-test] all-subdir-makefiles = "$(call all-subdir-makefiles) ")
$(info [print-test] assert "jni/Android.mk" = "$(wildcard */Android.mk)") # print: jni/Android.mk
$(info [print-test] $$(wildcard */*/Android.mk) = "$(wildcard */*/Android.mk)") # print: jni/xxdir/Android.mk

我打印结果：

$ cd your_project_path
$ ndk-build
[print-test] assert "jni/Android.mk" = "jni/Android.mk"
[print-test] (wildcard */*/Android.mk) = "jni/HelloWorld/Android.mk jni/MessagePack/Android.mk"

Android NDK：如何将Android.mk包含到另一个Android.mk（分层项目结构）中？

6 个答案: