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OMAP3: encountered a blocking structure assignment, occurring only on OMAP3 processors

Wolfgang Hauser
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  • Arm Employee Badge
    Note: This was originally posted on 29th July 2012 at http://forums.arm.com

    I've not looked in much detail, but as a thought, your code may not be compliant with the C++ standard; are you sure that "(m_buffer->bb + offs)" meets the alignment requirements of a "c_t"/"a_t" structure? It could be that the compiler is legally assuming a certain alignment for the structure copy and is using instructions which turn out to be incompatible with the alignment produced by your cast from a char array pointer.

    hth
    s.
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  • Arm Employee Badge
    Note: This was originally posted on 29th July 2012 at http://forums.arm.com

    I've not looked in much detail, but as a thought, your code may not be compliant with the C++ standard; are you sure that "(m_buffer->bb + offs)" meets the alignment requirements of a "c_t"/"a_t" structure? It could be that the compiler is legally assuming a certain alignment for the structure copy and is using instructions which turn out to be incompatible with the alignment produced by your cast from a char array pointer.

    hth
    s.
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