C Types -> LLVM Objects

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1

I am implementing the support library for my toy Python implementation in C. Is there a recommended way to import types/functions defined in my C library as LLVM type objects into my compiler? I am currently doing this:

- Create a "null" C file that references the important types
- Load the bytecode of this file when initializing the compiler
- Load the types and functions out of this "null" module

I'm thinking that a better solution would be to write some tool that takes the "null" bytecode and outputs a C++ file so I don't need to link my compiler with the bytecode reader, or be able to find the "nullmodule.bc" file. Are there any better ways to do this?

Thanks,

Evan Jones

2

Unfortunately, I'm not aware of a better way to do this. If you care about a few specific functions, you can hard code them into the compiler. If you care about general functions or a large number of them, this is a reasonable approach.

-Chris

3

One thing I should mention: this is only if you REALLY care about the types that a function takes (e.g. what FILE is on the system). For most uses, you can just prototype a function as taking an 'sbyte*' and cast pointer values to sbyte* before calling the function. This could simplify things enough that you can do simple things instead of grand and complicated ones.

-Chris