31 lines
585 B
Rust
31 lines
585 B
Rust
#[derive(Copy, Clone)]
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#[repr(C)]
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pub struct TaskContext {
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ra: usize,
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sp: usize,
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s: [usize; 12],
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}
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impl TaskContext {
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pub fn new() -> Self {
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Self {
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ra: 0,
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sp: 0,
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s: [0; 12],
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}
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}
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/// set the task context { __restore function, kernel stack, s_0 -> s_12 }
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pub fn goto_restore(kernel_stack_pointer: usize) -> Self {
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extern "C" {
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fn __restore();
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}
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Self {
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ra: __restore as usize,
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sp: kernel_stack_pointer,
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s: [0; 12],
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}
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}
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}
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