finstrument-functions, Qinstrument-functions

IDE Equivalent

Architectures

IA-32, Intel® 64 architectures

Syntax

Arguments

None

Default

Description

This option determines whether routine entry and exit points are instrumented. It may increase execution time.

The following profiling functions are called with the address of the current routine and the address of where the routine was called (its "call site"):

• This function is called upon routine entry:

  • On IA-32 architecture and Intel® 64 architecture:
    

    void __cyg_profile_func_enter (void *this_fn,

    void *call_site);

• This function is called upon routine exit:

  • On IA-32 architecture and Intel® 64 architecture:
    

    void __cyg_profile_func_exit (void *this_fn,

    void *call_site);

These functions can be used to gather more information, such as profiling information or timing information. Note that it is the user's responsibility to provide these profiling functions.

If you specify -finstrument-functions (Linux and Mac OS X) or /Qinstrument-functions (Windows), routine inlining is disabled. If you specify -fno-instrument-functions or /Qinstrument-functions-, inlining is not disabled.

This option is provided for compatibility with gcc.

Alternate Options

None