From d20f54bb1a873a16681c687a58b7946dc6924913 Mon Sep 17 00:00:00 2001 From: bjorn3 Date: Mon, 5 Nov 2018 18:42:43 +0100 Subject: Add some benchmarks --- example/alloc_example.rs | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 example/alloc_example.rs (limited to 'example/alloc_example.rs') diff --git a/example/alloc_example.rs b/example/alloc_example.rs new file mode 100644 index 00000000000..06746ab1f76 --- /dev/null +++ b/example/alloc_example.rs @@ -0,0 +1,41 @@ +#![feature(start, box_syntax, alloc_system, core_intrinsics, alloc, alloc_error_handler)] +#![no_std] + +extern crate alloc; +extern crate alloc_system; + +use alloc::prelude::*; + +use alloc_system::System; + +#[global_allocator] +static ALLOC: System = System; + +#[link(name = "c")] +extern "C" { + fn puts(s: *const u8); +} + +#[panic_handler] +fn panic_handler(_: &core::panic::PanicInfo) -> ! { + unsafe { + core::intrinsics::abort(); + } +} + +#[alloc_error_handler] +fn alloc_error_handler(_: alloc::alloc::Layout) -> ! { + unsafe { + core::intrinsics::abort(); + } +} + +#[start] +fn main(_argc: isize, _argv: *const *const u8) -> isize { + let world: Box<&str> = box "Hello World!\0"; + unsafe { + puts(*world as *const str as *const u8); + } + + 0 +} -- cgit 1.4.1-3-g733a5