1 // Copyright 2025 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 #![no_std] 15 16 pub trait TargetInterface { 17 const NAME: &'static str; 18 19 /// Called at the very beginning of the kernel to set up the console. console_init()20 fn console_init() {} 21 } 22 23 #[macro_export] 24 macro_rules! declare_target { 25 ($target:ty) => { 26 #[no_mangle] 27 pub fn pw_kernel_target_name() -> &'static str { 28 <$target as $crate::TargetInterface>::NAME 29 } 30 31 #[no_mangle] 32 pub fn pw_kernel_target_console_init() { 33 <$target as $crate::TargetInterface>::console_init(); 34 } 35 }; 36 } 37