#emulator #bindings #utility #function #arch #emu #register-arm

sys qnicorn

Rust bindings for the Qnicorn emulator with utility functions

1 stable release

1.0.0 Nov 5, 2021

#4 in #emu

GPL-2.0 license

2.5K SLoC


Rust bindings for the Qnicorn emulator with utility functions.

Checkout Unicorn2 source code at dev branch.

use qnicorn::RegisterARM;
use qnicorn::qnicorn_const::{Arch, Mode, Permission, SECOND_SCALE};

fn main() {
    let arm_code32: Vec<u8> = vec![0x17, 0x00, 0x40, 0xe2]; // sub r0, #23

    let mut qnicorn = qnicorn-engine::Qnicorn::new(Arch::ARM, Mode::LITTLE_ENDIAN).expect("failed to initialize Qnicorn instance");
    let mut emu = qnicorn.borrow();
    emu.mem_map(0x1000, 0x4000, Permission::ALL).expect("failed to map code page");
    emu.mem_write(0x1000, &arm_code32).expect("failed to write instructions");

    emu.reg_write(RegisterARM::R0 as i32, 123).expect("failed write R0");
    emu.reg_write(RegisterARM::R5 as i32, 1337).expect("failed write R5");

    let _ = emu.emu_start(0x1000, (0x1000 + arm_code32.len()) as u64, 10 * SECOND_SCALE, 1000);
    assert_eq!(emu.reg_read(RegisterARM::R0 as i32), Ok(100));
    assert_eq!(emu.reg_read(RegisterARM::R5 as i32), Ok(1337));

Further sample code can be found in tests/qnicorn.rs.


Add this to your Cargo.toml:

qnicorn = "1.0.0"


These bindings are based on Sébastien Duquette's (@ekse) unicorn-rs. We picked up the project, as it is no longer maintained. Thanks to all contributors.


~34K SLoC