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Wrong address calling library function

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  • Arm Employee Badge
    Note: This was originally posted on 18th December 2009 at http://forums.arm.com

    Its slightly strange that the compiler isn't just using a BL,
    which suggests there might be some interesting compiler options involved,
    or that there is something unusual about the "variables" involved.
    Does the following further simplified code have the same problem in your environment?
    (It just compiles to a BL using the same version of GCC outside of CoBuilder):

    volatile unsigned long long a;
    volatile unsigned int b;
    volatile unsigned long long c;

    int main(void)
    {

    while(1) {
      c = (a * b) / 1000000;
    }

    return 0;
    }

    hth
    s.
Reply
  • Arm Employee Badge
    Note: This was originally posted on 18th December 2009 at http://forums.arm.com

    Its slightly strange that the compiler isn't just using a BL,
    which suggests there might be some interesting compiler options involved,
    or that there is something unusual about the "variables" involved.
    Does the following further simplified code have the same problem in your environment?
    (It just compiles to a BL using the same version of GCC outside of CoBuilder):

    volatile unsigned long long a;
    volatile unsigned int b;
    volatile unsigned long long c;

    int main(void)
    {

    while(1) {
      c = (a * b) / 1000000;
    }

    return 0;
    }

    hth
    s.
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