Calling program functions

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Calling program functions

The following documentation discusses GDB’s call command.

callexpr

Evaluate the expression, expr, without displaying void returned values.
You can use this variant of the print command if you want to execute a function from your program, but without cluttering the output with void returned values. If the result is not void, it is printed and saved in the value history.
A new user-controlled variable, call_scratch_address, specifies the location of a scratch area to be used when GDB calls a function in the target. This is necessary because the usual method of putting the scratch area on the stack does not work in systems that have separate instruction and data spaces.

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