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force gcc usign ARM instruction set,why there are 2byte aligned instructions？

Heron Zhang
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  • Note: This was originally posted on 7th September 2012 at http://forums.arm.com

    Thanks for your reply.
    The function above calls the code in section .init to do some init work. How can I compile the source code totally into ARM instruction set,without any other instruction set?
    As you say,I have another question,if I had a ARM core which support ONLY ARM instruction set(there is no Thumb,thumb-2 and so on),but with MMU(which means can run LinuxOS),Can I compile the Linux kernel to run on that ARM core?

    This code looks like it's either precompiled library or compiler support code; -marm only affects the code you actually compile, not the things it is linked with.

    hth
    s.
Reply
  • Note: This was originally posted on 7th September 2012 at http://forums.arm.com

    Thanks for your reply.
    The function above calls the code in section .init to do some init work. How can I compile the source code totally into ARM instruction set,without any other instruction set?
    As you say,I have another question,if I had a ARM core which support ONLY ARM instruction set(there is no Thumb,thumb-2 and so on),but with MMU(which means can run LinuxOS),Can I compile the Linux kernel to run on that ARM core?

    This code looks like it's either precompiled library or compiler support code; -marm only affects the code you actually compile, not the things it is linked with.

    hth
    s.
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