src/test/ui/abi/auxiliary/foreign_lib.rs

   1 #![crate_name = "foreign_lib"]
   2 #![feature(rustc_private)]
   3
   4 pub mod rustrt {
   5     extern crate libc;
   6
   7     #[link(name = "rust_test_helpers", kind = "static")]
   8     extern "C" {
   9         pub fn rust_get_test_int() -> libc::intptr_t;
  10     }
  11 }
  12
  13 pub mod rustrt2 {
  14     extern crate libc;
  15
  16     extern "C" {
  17         pub fn rust_get_test_int() -> libc::intptr_t;
  18     }
  19 }
  20
  21 pub mod rustrt3 {
  22     // Different type, but same ABI (on all supported platforms).
  23     // Ensures that we don't ICE or trigger LLVM asserts when
  24     // importing the same symbol under different types.
  25     // See https://github.com/rust-lang/rust/issues/32740.
  26     extern "C" {
  27         pub fn rust_get_test_int() -> *const u8;
  28     }
  29 }
  30
  31 pub fn local_uses() {
  32     unsafe {
  33         let x = rustrt::rust_get_test_int();
  34         assert_eq!(x, rustrt2::rust_get_test_int());
  35         assert_eq!(x as *const _, rustrt3::rust_get_test_int());
  36     }
  37 }