Linking a function with dual entry points
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United States of America Patent
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May 24, 2016
Grant Date -
Apr 28, 2016
app pub date -
Dec 15, 2014
filing date -
Oct 28, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A method for a static linker to resolve a function call can include identifying, during link time, a first function call of a calling function to a callee function, determining whether the callee function is a local function, determining whether the callee function has a plurality of entry points, and whether an entry point of the plurality of entry points is a local entry point. The method can include resolving, during link time, the first function call to enter the local entry point, which can include replacing a symbol for the function in the first function call with an address of the local entry point during link time. If the callee function cannot be determined to be a local function, the method can include generating stub code and directing the first function call to enter the stub code during link time.
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