compiler-builtins-zynq/testcrate/tests/aeabi_memset.rs

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#![cfg(all(
target_arch = "arm",
not(any(target_env = "gnu", target_env = "musl")),
target_os = "linux",
feature = "mem"
))]
#![feature(compiler_builtins_lib)]
#![feature(lang_items)]
#![no_std]
extern crate compiler_builtins;
// test runner
extern crate utest_cortex_m_qemu;
// overrides `panic!`
#[macro_use]
extern crate utest_macros;
use core::mem;
macro_rules! panic {
($($tt:tt)*) => {
upanic!($($tt)*);
};
}
extern "C" {
fn __aeabi_memset4(dest: *mut u8, n: usize, c: u32);
}
struct Aligned {
array: [u8; 8],
_alignment: [u32; 0],
}
impl Aligned {
fn new(array: [u8; 8]) -> Self {
Aligned {
array: array,
_alignment: [],
}
}
}
#[test]
fn zero() {
let mut aligned = Aligned::new([0u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), 0, c) }
assert_eq!(*xs, [0; 8]);
let mut aligned = Aligned::new([1u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), 0, c) }
assert_eq!(*xs, [1; 8]);
}
#[test]
fn one() {
let mut aligned = Aligned::new([0u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let n = 1;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0, 0, 0, 0, 0, 0, 0]);
let mut aligned = Aligned::new([1u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 1, 1, 1, 1, 1, 1, 1]);
}
#[test]
fn two() {
let mut aligned = Aligned::new([0u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let n = 2;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0, 0, 0, 0, 0, 0]);
let mut aligned = Aligned::new([1u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 1, 1, 1, 1, 1, 1]);
}
#[test]
fn three() {
let mut aligned = Aligned::new([0u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let n = 3;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0, 0, 0, 0, 0]);
let mut aligned = Aligned::new([1u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 1, 1, 1, 1, 1]);
}
#[test]
fn four() {
let mut aligned = Aligned::new([0u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let n = 4;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 0, 0, 0, 0]);
let mut aligned = Aligned::new([1u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 1, 1, 1, 1]);
}
#[test]
fn five() {
let mut aligned = Aligned::new([0u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let n = 5;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 0xef, 0, 0, 0]);
let mut aligned = Aligned::new([1u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 0xef, 1, 1, 1]);
}
#[test]
fn six() {
let mut aligned = Aligned::new([0u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let n = 6;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0, 0]);
let mut aligned = Aligned::new([1u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 1, 1]);
}
#[test]
fn seven() {
let mut aligned = Aligned::new([0u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let n = 7;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0]);
let mut aligned = Aligned::new([1u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 1]);
}
#[test]
fn eight() {
let mut aligned = Aligned::new([0u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let n = 8;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef]);
let mut aligned = Aligned::new([1u8; 8]);;
assert_eq!(mem::align_of_val(&aligned), 4);
let xs = &mut aligned.array;
let c = 0xdeadbeef;
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unsafe { __aeabi_memset4(xs.as_mut_ptr(), n, c) }
assert_eq!(*xs, [0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef, 0xef]);
}