mirror of https://github.com/rust-lang/rust
122 lines
2.7 KiB
Rust
122 lines
2.7 KiB
Rust
//@ run-pass
|
|
#![allow(dead_code)]
|
|
|
|
#[repr(C)]
|
|
#[derive(Copy, Clone)]
|
|
pub struct Quad {
|
|
a: u64,
|
|
b: u64,
|
|
c: u64,
|
|
d: u64,
|
|
}
|
|
|
|
#[repr(C)]
|
|
#[derive(Copy, Clone)]
|
|
pub struct Floats {
|
|
a: f64,
|
|
b: u8,
|
|
c: f64,
|
|
}
|
|
|
|
#[repr(C)]
|
|
#[derive(Copy, Clone)]
|
|
pub struct CharCharDouble {
|
|
a: u8,
|
|
b: u8,
|
|
c: f64,
|
|
}
|
|
|
|
#[repr(C)]
|
|
#[derive(Copy, Clone)]
|
|
pub struct CharCharFloat {
|
|
a: u8,
|
|
b: u8,
|
|
c: f32,
|
|
}
|
|
|
|
mod rustrt {
|
|
use super::{CharCharDouble, CharCharFloat, Floats, Quad};
|
|
|
|
#[link(name = "rust_test_helpers", kind = "static")]
|
|
extern "C" {
|
|
pub fn rust_dbg_abi_1(q: Quad) -> Quad;
|
|
pub fn rust_dbg_abi_2(f: Floats) -> Floats;
|
|
pub fn rust_dbg_abi_3(a: CharCharDouble) -> CharCharDouble;
|
|
pub fn rust_dbg_abi_4(a: CharCharFloat) -> CharCharFloat;
|
|
}
|
|
}
|
|
|
|
fn test1() {
|
|
unsafe {
|
|
let q = Quad {
|
|
a: 0xaaaa_aaaa_aaaa_aaaa,
|
|
b: 0xbbbb_bbbb_bbbb_bbbb,
|
|
c: 0xcccc_cccc_cccc_cccc,
|
|
d: 0xdddd_dddd_dddd_dddd,
|
|
};
|
|
let qq = rustrt::rust_dbg_abi_1(q);
|
|
println!("a: {:x}", qq.a as usize);
|
|
println!("b: {:x}", qq.b as usize);
|
|
println!("c: {:x}", qq.c as usize);
|
|
println!("d: {:x}", qq.d as usize);
|
|
assert_eq!(qq.a, q.c + 1);
|
|
assert_eq!(qq.b, q.d - 1);
|
|
assert_eq!(qq.c, q.a + 1);
|
|
assert_eq!(qq.d, q.b - 1);
|
|
}
|
|
}
|
|
|
|
#[cfg(target_pointer_width = "64")]
|
|
fn test2() {
|
|
unsafe {
|
|
let f = Floats { a: 1.234567890e-15_f64, b: 0b_1010_1010, c: 1.0987654321e-15_f64 };
|
|
let ff = rustrt::rust_dbg_abi_2(f);
|
|
println!("a: {}", ff.a as f64);
|
|
println!("b: {}", ff.b as usize);
|
|
println!("c: {}", ff.c as f64);
|
|
assert_eq!(ff.a, f.c + 1.0f64);
|
|
assert_eq!(ff.b, 0xff);
|
|
assert_eq!(ff.c, f.a - 1.0f64);
|
|
}
|
|
}
|
|
|
|
#[cfg(target_pointer_width = "32")]
|
|
fn test2() {}
|
|
|
|
#[cfg(target_pointer_width = "64")]
|
|
fn test3() {
|
|
unsafe {
|
|
let a = CharCharDouble { a: 1, b: 2, c: 3. };
|
|
let b = rustrt::rust_dbg_abi_3(a);
|
|
println!("a: {}", b.a);
|
|
println!("b: {}", b.b);
|
|
println!("c: {}", b.c);
|
|
assert_eq!(b.a, a.a + 1);
|
|
assert_eq!(b.b, a.b - 1);
|
|
assert_eq!(b.c, a.c + 1.0);
|
|
}
|
|
}
|
|
|
|
#[cfg(target_pointer_width = "32")]
|
|
fn test3() {}
|
|
|
|
fn test4() {
|
|
unsafe {
|
|
let a = CharCharFloat { a: 1, b: 2, c: 3. };
|
|
let b = rustrt::rust_dbg_abi_4(a);
|
|
println!("a: {}", b.a);
|
|
println!("b: {}", b.b);
|
|
println!("c: {}", b.c);
|
|
assert_eq!(b.a, a.a + 1);
|
|
assert_eq!(b.b, a.b - 1);
|
|
assert_eq!(b.c, a.c + 1.0);
|
|
}
|
|
}
|
|
|
|
pub fn main() {
|
|
test1();
|
|
test2();
|
|
test3();
|
|
test4();
|
|
}
|