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c++gccname-decoration

GCC compiling a dll with __stdcall

When we compile a dll using __stdcall inside visual studio 2008 the compiled function names inside the dll are.

FunctionName

Though when we compile the same dll using GCC using wx-dev-cpp GCC appends the number of paramers the function has, so the name of the function using Dependency walker looks like.

FunctionName@numberOfParameters or == FunctionName@8

How do you tell GCC compiler to remove @nn from exported symbols in the dll?

Solution

  • __stdcall decorates the function name by adding an underscore to the start, and the number of bytes of parameters to the end (separated by @).

    So, a function:

    void __stdcall Foo(int a, int b);

    ...would become _Foo@8.

    If you list the function name (undecorated) in the EXPORTS section of your .DEF file, it is exported undecorated.

    Perhaps this is the difference?