cross compiling in Linux for android(arm_linux) platform

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There are two ways in cross compiling for android platform.

First, make use of arm-none-linux-gnueabi toolchain, you can download it from the following url:http://www.codesourcery.com/gnu_toolchains/arm/portal/package3399/public/arm-none-linux-gnueabi/arm-2008q3-41-arm-none-linux-gnueabi.bin

Second, use arm-gnueabi toolchain which is in NDK of Android.

Now I will tell how to cross compile for android platform by an example of compiling CyberGarage.

1. Firstly, introduce the method how to make use of arm-gnueabi toolchain. (The following referred three scripts can be extracted from attachment ” shell_cross_compiling_by_ndk.zip”)

a. Download SDK and NDK from Android official web

b. Build Android develop environment

c. Download Expat XML Parser on which is relied by CyberGarage:http://sourceforge.net/projects/expat/files/expat/2.0.1/expat-2.0.1.tar.gz/download

d. Download project CyberGarage for C fromhttp://www.cybergarage.org/twiki/bin/view/Main/CyberLinkForC

e. Edit /etc/profile in order to add ${path}: export PATH=${PATH}:/root/Desktop/android-ndk-r4b/build/prebuilt/linux-x86/arm-eabi-4.4.0/bin

f. 1) Put “config_shell_expat” into folder “expat-2.0.1”;

2) #./config_shell_expat; (it will generate Makefile and libtool);

3) Set the line

deplibs_check_method=”pass_all”

instead of

deplibs_check_method=”unknown”

which is contained in the “libtool” script (Why need to change libtool? Because crtbegin_dynamic.o and crtend_android.o in NDK is not generated by libtool. Therefore I can say toolchain in NDK is not very perfect for porting. It needs further update in the future);

4) #make

5) #make install

g. 1) Put “config_shell_clinkc” into folder “clinkc-2.3”;

2) #./config_shell_clinkc;

3) Set the line

deplibs_check_method=”pass_all”

instead of

deplibs_check_method=”unknown”

which is contained in the “libtool” script;

4) #make

5) #make install

h. 1) Put file “make_shell” into application source folder;

2) #./make_shell;

3) you can get application under source folder

2. Then how to make use of arm-none-linux-gnueabi toolchain. (The following referred three scripts can be extracted from attachment ” shell_cross_compiling_by_gnu.zip”)

a. Download arm-none-linux-gnueabi from codesourcery;

b. Edit /etc/profile in order to add ${path}: export PATH=${PATH}:/root/CodeSourcery/Sourcery_G++_Lite/bin

c. 1) Put “config_shell_expat_gnu” into folder “expat-2.0.1”;

2) #./config_shell_expat_gnu; (it will generate Makefile and libtool);

3) #make

4) #make install

d. 1) Put “config_shell_clinkc_gnu” into folder “clinkc-2.3”;

2) #./config_shell_clinkc_gnu;

3) #make

4) #make install

e. 1) Put file “make_shell_gnu” into application source folder;

2) #./make_shell_gnu;