标签:
把NDK压缩包解压到系统,如/mnt目录下,后在/mnt目录下建立文件夹my_ndk_toolchain,然后再/mnt目录下执行以下命令:
/mnt/android-ndk-r9c/build/tools/make-standalone-toolchain.sh --platform=android-19 --toolchain=arm-linux-androideabi-4.8 --stl=stlport --install-dir=/mnt/my_ndk_toolchain
出现以下打印:
dir=/mnt/my_ndk_toolchain
Copying prebuilt binaries...
Copying sysroot headers and libraries...
Copying libstdc++ headers and libraries...
Copying files to: /mnt/my_ndk_toolchain
Cleaning up...
Done.
说明独立的工具链成功,对执行的命令进行简单说明:
/mnt/android-ndk-r9c/build/tools/make-standalone-toolchain.sh:执行NDK目录下make-standalone-toolchain.sh脚本;
--platform:指工具链将使用哪个版本的Android API,可cd /mnt/android-ndk-r9c/platform中查看,我这里使用的是Android-19;
--toolchain:指独立出来的工具链哪种用途的编译,arm(arm-linux-androideabi-4.8),X86(x86-4.8)或MIPS(mipsel-linux-android-4.8),可cd toolchains中查看并选择适合的类型,我这里使用的是嵌入式;
--stl:指工具链支持C++ stl,stlport代表C++库将静态链接,stlport_shared将动态链接;
--install-dir:指安装目录;
注意:因为我使用的是32-bit Ubuntu,独立工具链默认是32位,所以在参数中没有指定系统类型,如果是64-bit Linux系统,需加入--system=linux-x86_64 或MacOSX加入--system=darwin-x86_64。
hello.cpp
#include <iostream>
#include <string>
int main(int argc, char **argv)
{
std::string str = "hello, ndk! this is my own toolchain! ^-^";
std::cout << str << std::endl;
return 0;
}
Makefile
rm=/bin/rm -f
CC=/mnt/my_ndk_toolchain/bin/arm-linux-androideabi-g++
PROGNAME = main
INCLUDES= -I.
CFLAGS = $(INCLUDES) -g -fPIC -D_FILE_OFFSET_BITS=64 -D_LARGE_FILE
OBJS = hello.o
LDFLAGS =
all :$(PROGNAME)
%.o: %.cpp
$(CC) $(CFLAGS) -c -o $@ $<
$(PROGNAME) : $(OBJS)
@echo "Linking $(PROGNAME)......"
${CC} ${LDFLAGS} -o ${PROGNAME} ${OBJS}
@echo "Linking Success!"
clean:
$(rm) *.o $(PROGNAME)
编译后得到可执行文件:main,adb push到嵌入式Android平台后,./main运行,得到以下结果:
root@android :/data # ./main
hello, ndk! this is my own toolchain! ^-^
Generate a customized Android toolchain installation that includes a working sysroot. The result is something that can more easily be used as a standalone cross-compiler, e.g. to run configure and make scripts. Valid options (defaults are in brackets): --help Print this help. --verbose Enable verbose mode. --dryrun Set to dryrun mode. --toolchain=<name> Specify toolchain name --use-llvm Use LLVM. --stl=<name> Specify C++ STL [gnustl] --arch=<name> Specify target architecture --abis=<list> Specify list of target ABIs. --ndk-dir=<path> Take source files from NDK at <path> [.] --package-dir=<path> Place package file in <path> [/tmp/ndk-root] --install-dir=<path> Don‘t create package, install files to <path> instead. --platform=<name> Specify target Android platform/API level. [android-3]
标签:
原文地址:http://www.cnblogs.com/ahuo/p/5467381.html