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Anybody here done any cross-compiling ?

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  • 04-10-2012 8:46pm
    #1
    bonzodog2
    Registered Users Posts: 6,213 ✭✭✭


    I have a version of Linux (Angstrom) running on an ARM tablet (WM8650) that came with Android. I would be interested in cross-compiling some code for it, from a Intel32 type machine running some kind of Linux.

    Anybody got any pointers for me?
    I'm thinking so far of compiler / library/kernel versions for a start.

    Will I need to recompile gcc & glibc first to target ARM ?
    How do I find the versions of glibc etc that are already on the tablet?


    I know there are several architecture versions of ARM, I think the tab is v5 and the kernel is 2.6.32.9

    I found a tool called crosstool, at www.kegel.com, and then just now, http://crosstool-ng.org/ which I haven't looked at yet, not sure if either of these will do what I want. Yet.


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    #2
    matrim
    Registered Users Posts: 7,518 ✭✭✭matrim


    I don't have much experience in setting it up from scratch but I did do some development that required cross compilation before (for the Nokia N900). The recommended setup for it was using scratchbox. I don't know how well it would work for the tablet you mentioned but might be something to look into


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    #3
    PrzemoF
    Registered Users Posts: 1,931 ✭✭✭PrzemoF


    OP, check this: https://www.linux.com/community/blogs/127-personal/468920-cross-compiling-for-arm

    I have no experience, but it looks OK


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    #4
    Khannie
    Moderators, Technology & Internet Moderators Posts: 37,485 Mod ✭✭✭✭Khannie


    I did some compiling for the PSP on my intel box before. All I remember (it was a long time ago) was that I got the PSP toolchain, followed relevant setup instructions and after that it "just worked". In theory cross compiling should "just work".


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    #5
    humbert
    Registered Users Posts: 5,238 ✭✭✭humbert


    Usually involves installing the toolchain, i.e. libraries and compiler arm-linux-androideabi-g++ for example.

    Then adding these binarys to PATH.

    If the makefiles support the architecture you just have to add something like ARCH=arm to the make command.

    For simpler projects which don't have makefiles you can just call the toolchain compiler directly as you would a normal compile.


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