forked from M-Labs/artiq-zynq
runtime: implement core_log
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3092bfc21a
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6d654de3d5
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@ -1,7 +1,9 @@
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use core::ffi::VaList;
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use core::ptr;
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use core::str;
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use libc::{c_char, c_int, size_t};
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use libm;
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use log::{info, warn};
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use alloc::vec;
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@ -16,7 +18,20 @@ extern "C" {
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fn vsnprintf_(buffer: *mut c_char, count: size_t, format: *const c_char, va: VaList) -> c_int;
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}
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pub unsafe extern fn rtio_log(fmt: *const c_char, mut args: ...) {
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unsafe extern fn core_log(fmt: *const c_char, mut args: ...) {
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let size = vsnprintf_(ptr::null_mut(), 0, fmt, args.as_va_list()) as usize;
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let mut buf = vec![0; size + 1];
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vsnprintf_(buf.as_mut_ptr() as *mut i8, size + 1, fmt, args.as_va_list());
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match str::from_utf8(buf.as_slice()) {
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Ok(s) => info!("kernel: {}", s),
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Err(e) => {
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info!("kernel: {}", (str::from_utf8(&buf.as_slice()[..e.valid_up_to()]).unwrap()));
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warn!("kernel: invalid utf-8");
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}
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}
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}
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unsafe extern fn rtio_log(fmt: *const c_char, mut args: ...) {
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let size = vsnprintf_(ptr::null_mut(), 0, fmt, args.as_va_list()) as usize;
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let mut buf = vec![0; size + 1];
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vsnprintf_(buf.as_mut_ptr(), size + 1, fmt, args.as_va_list());
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@ -68,6 +83,9 @@ pub fn resolve(required: &[u8]) -> Option<u32> {
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api!(rtio_input_timestamp = rtio::input_timestamp),
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api!(rtio_input_data = rtio::input_data),
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api!(rtio_input_timestamped_data = rtio::input_timestamped_data),
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// log
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api!(core_log = core_log),
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api!(rtio_log = rtio_log),
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// rtio dma
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