zig/doc/targets.md

How to Add Support For More Targets

Create bootstrap code in std/bootstrap.zig and add conditional compilation logic. This code is responsible for the real executable entry point, calling main(argc, argv, env) and making the exit syscall when main returns.

How to pass a byvalue struct parameter in the C calling convention is target-specific. Add logic for how to do function prototypes and function calls for the target when an exported or external function has a byvalue struct.

Write the target-specific code in std.zig.

Update the C integer types to be the correct size for the target.

Add the conditional compilation code for the page size global. It is hardcoded for each target.

Make sure that parseh sends the correct command line parameters to libclang for the given target.