Lazy and precise update of unwind information for dynamically generated code

A computer-readable medium embodying instructions that cause a computer to perform method for lazily registering dynamically generated code and corresponding unwind information of a process, said method comprising:

• a) detecting a request for first unwind information related to first corresponding dynamically generated code;
• b) creating a module which includes data related to said first unwind information and said first corresponding dynamically generated code;
• c) providing an application program interface which allows said data to be registered such that dynamic registration of said first unwind information and said first corresponding dynamically generated code is enabled;
• and
• d) coupling an application program interface invocation code sequence to said first corresponding dynamically generated code such that upon execution of said first corresponding dynamically generated code, said application program interface invocation code sequence instructs said application program interface to facilitate registration of said data.

An apparatus for lazily registering dynamically generated code and corresponding unwind information of a process, said apparatus comprising:

• means for detecting a request for first unwind information related to first corresponding dynamically generated code;
• means for creating a module which includes data related to said first unwind information and said first corresponding dynamically generated code;
• means for providing an application program interface which allows said data to be registered such that dynamic registration of said first unwind information and said first corresponding dynamically generated code is enabled;
• and
• means for coupling an application program interface invocation code sequence to said first corresponding dynamically generated code such that upon execution of said first corresponding dynamically generated code, said application program interface invocation code sequence instructs said application program interface to facilitate registration of said data.