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Logger: ported log_buffer.

This commit is contained in:
pca006132 2020-07-13 14:59:56 +08:00
parent ea96cf96d3
commit 855b26aa19
2 changed files with 122 additions and 2 deletions

111
src/runtime/src/logger.rs Normal file
View File

@ -0,0 +1,111 @@
use core::cell::{Cell, RefCell, RefMut};
use core::fmt::Write;
use log::{Log, LevelFilter};
use log_buffer::LogBuffer;
use libboard_zynq::{println, timer::GlobalTimer};
pub struct LogBufferRef<'a> {
buffer: RefMut<'a, LogBuffer<&'static mut [u8]>>,
old_log_level: LevelFilter
}
impl<'a> LogBufferRef<'a> {
fn new(buffer: RefMut<'a, LogBuffer<&'static mut [u8]>>) -> LogBufferRef<'a> {
let old_log_level = log::max_level();
log::set_max_level(LevelFilter::Off);
LogBufferRef { buffer, old_log_level }
}
pub fn is_empty(&self) -> bool {
self.buffer.is_empty()
}
pub fn clear(&mut self) {
self.buffer.clear()
}
pub fn extract(&mut self) -> &str {
self.buffer.extract()
}
}
impl<'a> Drop for LogBufferRef<'a> {
fn drop(&mut self) {
log::set_max_level(self.old_log_level)
}
}
pub struct BufferLogger {
buffer: RefCell<LogBuffer<&'static mut [u8]>>,
uart_filter: Cell<LevelFilter>
}
static mut LOGGER: Option<BufferLogger> = None;
impl BufferLogger {
pub fn new(buffer: &'static mut [u8]) -> BufferLogger {
BufferLogger {
buffer: RefCell::new(LogBuffer::new(buffer)),
uart_filter: Cell::new(LevelFilter::Info),
}
}
pub fn register(self) {
unsafe {
LOGGER = Some(self);
log::set_logger(LOGGER.as_ref().unwrap())
.expect("global logger can only be initialized once");
}
}
pub unsafe fn get_logger() -> &'static mut Option<BufferLogger> {
&mut LOGGER
}
pub fn buffer<'a>(&'a self) -> Result<LogBufferRef<'a>, ()> {
self.buffer
.try_borrow_mut()
.map(LogBufferRef::new)
.map_err(|_| ())
}
pub fn uart_log_level(&self) -> LevelFilter {
self.uart_filter.get()
}
pub fn set_uart_log_level(&self, max_level: LevelFilter) {
self.uart_filter.set(max_level)
}
}
// required for impl Log
unsafe impl Sync for BufferLogger {}
impl Log for BufferLogger {
fn enabled(&self, _metadata: &log::Metadata) -> bool {
true
}
fn log(&self, record: &log::Record) {
if self.enabled(record.metadata()) {
let timestamp = unsafe {
GlobalTimer::get()
}.get_us();
let seconds = timestamp / 1_000_000;
let micros = timestamp % 1_000_000;
if let Ok(mut buffer) = self.buffer.try_borrow_mut() {
writeln!(buffer, "[{:6}.{:06}s] {:>5}({}): {}", seconds, micros,
record.level(), record.target(), record.args()).unwrap();
}
if record.level() <= self.uart_log_level() {
println!("[{:6}.{:06}s] {:>5}({}): {}", seconds, micros,
record.level(), record.target(), record.args());
}
}
}
fn flush(&self) {
}
}

View File

@ -9,7 +9,7 @@ extern crate alloc;
use core::{cmp, str};
use log::{info, warn};
use libboard_zynq::{timer::GlobalTimer, time::Milliseconds, logger, devc, slcr};
use libboard_zynq::{timer::GlobalTimer, time::Milliseconds, devc, slcr};
use libsupport_zynq::ram;
use libregister::RegisterW;
use nb::block;
@ -30,6 +30,7 @@ mod moninj;
mod load_pl;
mod eh_artiq;
mod panic;
mod logger;
fn init_gateware() {
// Set up PS->PL clocks
@ -124,11 +125,19 @@ fn init_rtio(timer: GlobalTimer, cfg: &config::Config) {
}
}
static mut LOG_BUFFER: [u8; 1<<17] = [0; 1<<17];
#[no_mangle]
pub fn main_core0() {
let timer = GlobalTimer::start();
let _ = logger::init();
let buffer_logger = unsafe {
logger::BufferLogger::new(&mut LOG_BUFFER[..])
};
buffer_logger.set_uart_log_level(log::LevelFilter::Debug);
buffer_logger.register();
log::set_max_level(log::LevelFilter::Debug);
info!("NAR3/Zynq7000 starting...");
ram::init_alloc_linker();