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Why does DPCC add a constant value to the offset of functions?

April 26, 2017constant dpcc functions offset value

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Why does DPCC add a constant value to the offset of functions?

1 Answer

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10 Posted

In order for DPCC to access local variables in the probed program, the program must be compiled with frame pointers which causes two extra instructions to be included at the beginning of each function. The constant value is appended so the probe in inserted after the frame pointer instructions.