[LLVMdev] Understanding resolving external/built-in function references

[Bill Kelly]

Hi,

I'm new to LLVM, so I hope my question is well-formed.

Given a printf("Hello World") program saved as bitcode,
I'm attempting to understand how LLVM resolves links to
built-in functions like printf() when the bitcode is
loaded.

I'm supposing something along the lines of a
Linker::ItemList may exist somewhere which provides
names and addresses of built-in functions(?)

On a related note, I'm wondering how one would make
one's own built-in functions like myprintf() or such,
available so that bitcode, when loaded, could link
with them?

(Apologies if this is an RTFM.)


Thanks for any help,

Bill