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add #![deny(missing_docs)] AND #![deny(warnings)] in main.rs, and add more comments

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This commit is contained in:
Yu Chen 2022-03-26 23:00:04 +08:00
parent 5946903948
commit 139fbc637a
9 changed files with 42 additions and 14 deletions
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5
os/src/task/context.rs
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@ -4,12 +4,16 @@ use crate::trap::trap_return;
#[repr(C)]
/// task context structure containing some registers
pub struct TaskContext {
/// return address ( e.g. __restore ) of __switch ASM function
ra: usize,
/// kernel stack pointer of app
sp: usize,
/// callee saved registers: s 0..11
s: [usize; 12],
}
impl TaskContext {
/// init task context
pub fn zero_init() -> Self {
Self {
ra: 0,
@ -17,6 +21,7 @@ impl TaskContext {
s: [0; 12],
}
}
/// set Task Context{__restore ASM funciton: trap_return, sp: kstack_ptr, s: s_0..12}
pub fn goto_trap_return(kstack_ptr: usize) -> Self {
Self {
ra: trap_return as usize,