If the linker encounters an indirect function call (by a pointer to function), it assumes that any of the functions addresses of which were taken anywhere in the program, can be called at that point. Use the #pragma funcall directive to instruct the linker which functions can be called indirectly from the current function:

#pragma funcall <func_name> <called_func>[, <called_func>,...]

A corresponding pragma must be placed in the source module where the function func_name is implemented. This module must also include declarations of all functions listed in the called_func list.

These functions will be linked if the function func_name is called in the code no matter whether any of them was called or not.

  Note : The #pragma funcall directive can help the linker to optimize function frame allocation in the compiled stack.

Related topics: Linker Directives

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