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I need some advice on "forwarding" arguments to a callee. Suppose I
have a function F that is called at the beginning of all other
functions in the module. From F I need to access (read) the
arguments passed to its immediate caller. Right now I do something
like boxing all arguments in the caller inside a struct and passing
a pointer to the struct to F, alongside an identifier telling which
caller F is being called from. F has then a giant switch that
branches to the appropriate unboxing code. This is obviously
suboptimal because I need to allocate the struct on the stack, copy
the arguments inside of it and then passing an additional pointer to
F.<br>
I was wondering if there's a better way to do this, e.g. a way to
access the stack frame of the caller (knowing, thanks to the
identifier, which caller F was called from) or, more in general,
arbitrary values defined in the caller. Any suggestions?<br>
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