How to force inclusion of an object file in a static library when linking into executable?

by

It turns out my original attempt was mostly there. The following works:

extern "C" void Af(void);
void (*Af_fp)(void) = &Af;

For those that want a self-contained preprocessor macro to encapsulate this:

#if defined(_WIN32)
# if defined(_WIN64)
#  define FORCE_UNDEFINED_SYMBOL(x) __pragma(comment (linker, "/export:" #x))
# else
#  define FORCE_UNDEFINED_SYMBOL(x) __pragma(comment (linker, "/export:_" #x))
# endif
#else
# define FORCE_UNDEFINED_SYMBOL(x) extern "C" void x(void); void (*__ ## x ## _fp)(void)=&x;
#endif

Which is used thusly:

FORCE_UNDEFINED_SYMBOL(Af)

More Related Contents:

  1. How can I statically link standard library to my C++ program?
  2. Linking a shared library with another shared lib in linux
  3. Difference between shared objects (.so), static libraries (.a), and DLL’s (.so)?
  4. Compilation fails with “relocation R_X86_64_32 against `.rodata.str1.8′ can not be used when making a shared object”
  5. Linking libstdc++ statically: any gotchas?
  6. “relocation R_X86_64_32S against ” linking Error
  7. Using a static library in Qt Creator
  8. Undefined symbols for architecture x86_64 – Mavericks (Yosemite, El Capitan…)
  9. What’s the difference between 'gcc -g' and 'gcc -g3'?
  10. How to allocate memory dynamically for class using new in C++?
  11. Why do I get “unresolved external symbol” errors when using templates? [duplicate]
  12. How does C++ linking work in practice? [duplicate]
  13. Linux: Executing child process with piped stdin/stdout
  14. How do you find what version of libstdc++ library is installed on your linux machine?
  15. gcc will not properly include math.h
  16. How can I execute external commands in C++/Linux?
  17. How to properly uninitialize OpenSSL
  18. `bash: ./a.out: No such file or directory` on running executable produced by `ld`
  19. Linking against older symbol version in a .so file
  20. How can I set the baud rate to 307,200 on Linux?
  21. fork() and output
  22. Why is statically linking glibc discouraged?
  23. Possible causes for Boost not being found by CMake in certain situations?
  24. Where are the man pages for C++? [closed]
  25. Efficiently reading a very large text file in C++
  26. Why infinite recursion leads to seg fault
  27. Forcing or preventing use of a particular minor version of libstdc++
  28. What is a good easy to use profiler for C++ on Linux? [closed]
  29. C++ Linker Error With Class static constexpr
  30. How do you get the icon, MIME type, and application associated with a file in the Linux Desktop?

Leave a Comment