msvc-target.json

core.rs

#[lang = "sized"]
#[rustc_on_unimplemented = "`{Self}` does not have a constant size known at compile-time"]
#[fundamental] // for Default, for example, which requires that `[T]: !Default` be evaluatable
pub trait Sized {
    // Empty.
}

pub trait Clone : Sized {
    fn clone(&self) -> Self;
    #[inline(always)]
    fn clone_from(&mut self, source: &Self) {
        *self = source.clone()
    }
}

#[lang = "copy"]
pub trait Copy : Clone {
    // Empty.
}

i786-pc-windows-msvc.json

{
  "_": "Inspired by https://github.com/joerg-krause/rust-cross-libs/blob/master/cfg/armv5te-unknown-linux-gnueabi.json",

  "llvm-target": "i686-pc-windows-msvc",
  "target-endian": "little",
  "target-pointer-width": "32",
  "target-family": "windows",

  "arch": "x86",
  "vendor": "pc",
  "os": "windows",
  "cpu": "pentium4",

  "linker": "link.exe", "comment": "when specified, rustc passes args as for GNU linker: -L, -shared, -Wl,-Bstatic, etc.",
  "ar": "lib.exe",

  "executables": true,
  "dynamic-linking": true,

  "is-like-windows": true,
  "is-like-msvc": true,
  "is-like-osx": false,
  "is-like-android": false,
  "linker-is-gnu": false,

  "dll-prefix": "",
  "dll-suffix": ".sys",
  "exe-prefix": "",
  "exe-suffix": ".exe",
  "staticlib-prefix": "",
  "staticlib-suffix": ".lib",

  "no-default-libraries":     true,
  "no-compiler-rt":           true,
  "has-rpath":                true,

  "allow-asm": true,
  "has-elf-tls":              false,
  "disable-redzone":          true,
  "custom-unwind-resume":     true,
  "eliminate-frame-pointer":  false,
  "position-independent-executables": false,
  "function-sections": true,

  "code-model":              "kernel",
  "relocation-model":        "dynamic-no-pic",

  "archive-format": "",

  "pre-link-objects-exe": [],
  "pre-link-objects-dll": [],

  "pre-link-args": ["/NOLOGO", "/INCREMENTAL:NO", "/MANIFEST:NO", "/NODEFAULTLIB", "/SUBSYSTEM:NATIVE", "/DRIVER", "/RELEASE", "/FIXED:No", "/NXCOMPAT", "/DYNAMICBASE"],
  "late-link-args": [],
  "post-link-args": [],

  "post-link-objects": ["ntoskrnl.lib", "hal.lib"],

  "_end" : false
}

lang.rs

#[lang = "eh_personality"] extern fn eh_personality() {}
#[lang = "panic_fmt"] extern fn panic_fmt() -> ! {loop{}}
#[lang = "eh_unwind_resume"] extern fn rust_eh_unwind_resume() {}

// #[no_mangle] pub extern fn rust_eh_register_frames () {}
// #[no_mangle] pub extern fn rust_eh_unregister_frames () {}

lib.rs

#![feature(lang_items)]
#![feature(on_unimplemented, fundamental)]
#![feature(no_core)]

#![no_core]
#![allow(dead_code)]

mod core;
mod lang;

#[no_mangle]
pub extern "system" fn entry() -> u32 { return 0; }