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#![cfg_attr(any(target_os = "none", target_os = "xous"), no_std)]
#[cfg(feature = "bitflags")]
#[macro_use]
extern crate bitflags;
#[cfg(not(feature = "rustc-dep-of-std"))]
extern crate xous_macros as macros;
#[cfg(not(feature = "rustc-dep-of-std"))]
pub use macros::xous_main;
pub mod arch;
pub mod carton;
pub mod definitions;
mod messages;
pub mod process;
pub mod string;
pub mod stringbuffer;
pub mod syscall;
pub mod names;
pub use arch::{ProcessArgs, ProcessInit, ProcessKey, ThreadInit};
pub use definitions::*;
pub use messages::*;
pub use string::*;
pub use stringbuffer::*;
pub use syscall::*;
#[cfg(not(any(target_os = "none", target_os = "xous")))]
pub use arch::ProcessArgsAsThread;
#[cfg(any(target_os = "none", target_os = "xous"))]
pub fn init() {}
#[cfg(not(any(target_os = "none", target_os = "xous")))]
pub fn init() {
use std::panic;
panic::set_hook(Box::new(|arg| {
println!("PANIC!");
println!("Details: {:?}", arg);
}));
}
#[macro_export]
macro_rules! make_name {
($fcc:expr) => {{
let mut c: [u8; 4] = Default::default();
c.copy_from_slice($fcc.as_bytes());
u32::from_le_bytes(c) as usize
}};
}
#[cfg(not(target_os = "none"))]
#[macro_export]
macro_rules! maybe_main {
() => {
extern "Rust" {
fn xous_entry() -> !;
}
fn main() {
#[cfg(not(target_os = "xous"))]
xous::arch::ensure_connection().unwrap();
unsafe { xous_entry() };
}
};
}
#[cfg(target_os = "none")]
#[macro_export]
macro_rules! maybe_main {
() => {
use core::panic::PanicInfo;
#[panic_handler]
fn handle_panic(arg: &PanicInfo) -> ! {
use core::fmt::Write;
use xous::{
terminate_process, try_connect, try_send_message, wait_event, Message,
ScalarMessage, CID, SID,
};
if let Ok(conn) = try_connect(SID::from_bytes(b"xous-log-server ").unwrap()) {
struct PanicWriter {
conn: CID,
}
impl PanicWriter {
fn group_or_null(data: &[u8], offset: usize) -> usize {
let start = offset * core::mem::size_of::<usize>();
let mut out_array = [0u8; core::mem::size_of::<usize>()];
for i in 0..core::mem::size_of::<usize>() {
out_array[i] = if i + start < data.len() {
data[start + i]
} else {
0
};
}
usize::from_le_bytes(out_array)
}
}
impl core::fmt::Write for PanicWriter {
fn write_str(&mut self, s: &str) -> core::result::Result<(), core::fmt::Error> {
for c in s.as_bytes().chunks(core::mem::size_of::<usize>() * 4) {
let mut panic_msg = ScalarMessage {
id: 1100 + c.len(),
arg1: Self::group_or_null(&c, 0),
arg2: Self::group_or_null(&c, 1),
arg3: Self::group_or_null(&c, 2),
arg4: Self::group_or_null(&c, 3),
};
try_send_message(self.conn, Message::Scalar(panic_msg)).ok();
}
Ok(())
}
}
let mut pw = PanicWriter { conn };
let panic_start_msg = ScalarMessage {
id: 1000,
arg1: 0,
arg2: 0,
arg3: 0,
arg4: 0,
};
try_send_message(conn, Message::Scalar(panic_start_msg)).ok();
writeln!(&mut pw, "{}", arg).ok();
let panic_start_msg = ScalarMessage {
id: 1200,
arg1: 0,
arg2: 0,
arg3: 0,
arg4: 0,
};
try_send_message(conn, Message::Scalar(panic_start_msg)).ok();
}
wait_event();
terminate_process(1);
}
extern "Rust" {
fn xous_entry() -> !;
}
#[export_name = "_start"]
pub extern "C" fn _start(pid: u32) {
xous::process::set_id(pid);
unsafe { xous_entry() };
}
};
}