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Author Topic: export entry point aliases  (Read 1162 times)

440bx

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export entry point aliases
« on: September 29, 2022, 11:41:08 pm »
Hello,

It is somewhat common to see Windows DLLs that have multiple exported functions lead to the same piece of code, IOW, they all share the same entry point.

I was wondering if it is possible to do that with FPC.  IOW, is it possible to assign multiple exported function names to an FPC written function or procedure ? if the answer is yes, then I'd like to know how it is done.

Thank you for your help.
(FPC v3.0.4 and Lazarus 1.8.2) or (FPC v3.2.2 and Lazarus v3.2) on Windows 7 SP1 64bit.

avk

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Re: export entry point aliases
« Reply #1 on: September 30, 2022, 05:32:55 am »
Maybe something like this?
Code: Pascal  [Select][+][-]
  1. library test;
  2.  
  3. {$mode objfpc}
  4.  
  5. function MyFun(c: Integer): Integer;
  6. begin
  7.   Result := c * 10;
  8. end;
  9.  
  10. exports
  11.    MyFun,
  12.    MyFun name 'MySameFun',
  13.    MyFun name 'MyOtherSameFun';
  14. begin
  15. end.
  16.  

440bx

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Re: export entry point aliases
« Reply #2 on: September 30, 2022, 06:32:20 am »
Maybe something like this?
Yes!  That's exactly what I was wondering how to do.  Great example too!

Thank you very much @avk, much appreciated.
(FPC v3.0.4 and Lazarus 1.8.2) or (FPC v3.2.2 and Lazarus v3.2) on Windows 7 SP1 64bit.

avk

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Re: export entry point aliases
« Reply #3 on: September 30, 2022, 09:17:06 am »
You are welcome.

 

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