Indirect Function Calls
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.
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