[原创]cmake和Android.mk两种编译c/c++双编译

Android.mk

在gradle 安卓项目的build.gradle文件下的android{} 内插入

 externalNativeBuild {

    ndkBuild {
                    path 'src/main/jni/Android.mk'
                }

在gradle 安卓项目的build.gradle文件下的android.defaultConfig{} 内插入

android{
 defaultConfig {
   ndkBuild {
                    abiFilters "armeabi-v7a",'arm64-v8a','x86_64'
                 abiFilters "armeabi-v7a",'arm64-v8a'
                }

      }
 }

Cmake

在gradle 安卓项目的build.gradle文件下的android{} 内插入

 externalNativeBuild {

  cmake {
                path "CMakeLists.txt"
            }

在gradle 安卓项目的build.gradle文件下的android.defaultConfig{} 内插入

android{
 defaultConfig {
                cmake {
//            arguments '-DBUILD_TESTING=OFF', '-DANDROID_TOOLCHAIN=gcc'
                    arguments "-DANDROID_STL=c++_shared", "-DSHARED=false", "-DDEBUG=OFF", "-DFUCKDEBUG=ON", "-Wno-error=format-security"
//打开hook zz日志。
//解决roid.injected.build.abi'gradle标志设置的ABIs [armeabi-v7a，armeabi]包含的'ARMEABI'不是此项目的目标
                    cppFlags "-fexceptions", "-fpermissive", "-fno-exceptions"
                   
      }
 }
}

Android.mk内容概览

#APP_ABI := armeabi-v7a
APP_ABI := armeabi armeabi-v7a x86
#APP_ABI := armeabi-v7a x86
#APP_ABI := armeabi-v7a x86 arm64-v8a
APP_PLATFORM := android-14
APP_STL := c++_static
APP_OPTIM := release
VA_ROOT          := $(call my-dir)
NDK_MODULE_PATH  := $(NDK_MODULE_PATH):$(VA_ROOT)

Android.mk

LOCAL_PATH := $(call my-dir)
MAIN_LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := prncon
# -DFUCKDEBUG open log
LOCAL_CFLAGS := -Wno-error=format-security -fpermissive -DLOG_TAG=\"FUCK_QSSQ\" -DQSSQ_SAFE
LOCAL_CFLAGS += -fno-rtti -fno-exceptions
LOCAL_CPPFLAGS += -std=c++14
LOCAL_CFLAGS += -fvisibility=hidden # hidden
LOCAL_C_INCLUDES += $(MAIN_LOCAL_PATH)
LOCAL_C_INCLUDES += $(MAIN_LOCAL_PATH)/Foundation
LOCAL_C_INCLUDES += $(MAIN_LOCAL_PATH)/Jni
LOCAL_C_INCLUDES += $(MAIN_LOCAL_PATH)/Include

LOCAL_SRC_FILES := Jni/VAJni.cpp \
                    My/JniHelper.cpp \
                    My/QSSQ_hkkq.cpp \
                    My/base64.c \
                    My/base6_with_test.c \
                    My/bytesencrypt.cpp \

LOCAL_LDLIBS := -llog -latomic
LOCAL_STATIC_LIBRARIES := fb

include $(BUILD_SHARED_LIBRARY)
include $(MAIN_LOCAL_PATH)/fb/Android.mk

CmakeLists.txt文件概览

cmake_minimum_required(VERSION 3.4.1)
set(CMAKE_CXX_STANDARD 14)

#include_directories(src/main/cpp/Foundation)
include_directories(src/main/cpp/include)
include_directories(src/main/cpp/include_io_redirect)
include_directories(src/main/cpp)
add_subdirectory("src/main/cpp/hookzz")


#[[message("compile  static lib ${PROJECT_SOURCE_DIR}")
add_library(hookzzstatic STATIC  IMPORTED)
set_target_properties(hookzzstatic
        PROPERTIES IMPORTED_LOCATION
        ${PROJECT_SOURCE_DIR}/libhookzz.a)]]
message("------------------------------------------------")

add_library( # Sets the name of the library.
        qssqredirect
        # Sets the library as a shared library.
        SHARED
        src/main/cpp/android/Foundation/JniHelper.cpp
        src/main/cpp/QSSQ_hkkq.cpp
        src/main/cpp/base64.c
        src/main/cpp/bytesencrypt.cpp
        )

find_library( # Sets the name of the path variable.
        log-lib
        # Specifies the name of the NDK library that
        # you want CMake to locate.
        log)



target_link_libraries( # Specifies the target library.
        qssqredirect
        hookzz
        # Links the target library to the log library
        # included in the NDK.
        ${log-lib}
#        ${atomic-lib}
        )


#add_definitions(-std=c++11)
ENABLE_LANGUAGE(ASM)

if (FUCKDEBUG)
    message("---------open log FUCKDEBUG---------------")
    add_definitions(-DFUCKDEBUG)
endif ()

双支持

在项目build.gradle 下定义

ext{
    USE_CMAKE=false
}

在android项目build.gradle定义判断即可

image.png image.png

gradle中 宏定义的读取

gradle.中

                cmake {
                    arguments "-DFUCKDEBUG=ON", "-Wno-error=format-security"
}

cmakeList.txt

if (FUCKDEBUG)
    message("---------open log FUCKDEBUG---------------")
    add_definitions(-DFUCKDEBUG)

android.mk

# -DFUCKDEBUG open log

c代码

   #if defined(FUCKDEBUG)
        #pragma message("-----MY LOG_ ON----")
#endif

判断cpu架构的代码

__arm__             armeabi
__arm__             armeabi-v7
__aarch64__         arm64-v8a
__i386__            x86
__x86_64__          x86_64

# ifdef __arm__ 
        #pragma message(" arm arch")
#endif