[cfe-dev] How to go about generating wrapper functions when a particular attribute is seen?

[Seth Goldstein via cfe-dev]

I am wondering what the best approach would be to generate a wrapper
function for functions with a particular attribute.  I.e.,

When the compiler sees

__attribute__ ((wrapthis)) int foo(args) {}

I want to generate foo as usual and also generate a function

int
foo_wrapper(args)
{
// do some stuff here
int result = foo(args);
// do some more stuff here
return result;
}

I am not sure where to generate the wrapper function, e.g., in clang,
in llvm?  And, what pass could I look at that might provide me with
some hints about how to go about this.  Any help would be appreciated.

Thanks,

seth



--------------
Seth Copen Goldstein
Carnegie Mellon University
Computer Science Dept
7111 GHC
412-268-3828
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