optee_utee/
trace.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use core::ffi::*;
19use core::fmt::{Arguments, Result, Write};
20use optee_utee_sys as raw;
21
22pub struct Trace;
23
24impl Trace {
25    fn new() -> Self {
26        Trace {}
27    }
28
29    pub fn _print(fmt: Arguments) {
30        let mut writer = Trace::new();
31        let result = writer.write_fmt(fmt);
32
33        if let Err(e) = result {
34            panic!("failed printing to trace: {}", e);
35        }
36    }
37
38    pub fn set_level(level: i32) {
39        unsafe {
40            raw::trace_set_level(level);
41        }
42    }
43
44    pub fn get_level() -> i32 {
45        unsafe { raw::trace_get_level() }
46    }
47}
48
49impl Write for Trace {
50    fn write_str(&mut self, buf: &str) -> Result {
51        unsafe {
52            raw::_utee_log(buf.as_ptr() as *const c_void, buf.len());
53        }
54        Ok(())
55    }
56}
optee_utee/trace.rs

optee_utee/
trace.rs
