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Update from previous chapters.

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This commit is contained in:
Yifan Wu 2021-01-06 00:19:10 +08:00
parent 3851c2d561
commit c33c0f8aea
7 changed files with 31 additions and 21 deletions
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6
user/src/syscall.rs
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@ -1,5 +1,3 @@
pub const STDOUT: usize = 1;
const SYSCALL_WRITE: usize = 64;
const SYSCALL_EXIT: usize = 93;
const SYSCALL_YIELD: usize = 124;
@ -22,8 +20,8 @@ pub fn sys_write(fd: usize, buffer: &[u8]) -> isize {
syscall(SYSCALL_WRITE, [fd, buffer.as_ptr() as usize, buffer.len()])
}
pub fn sys_exit(xstate: i32) -> isize {
syscall(SYSCALL_EXIT, [xstate as usize, 0, 0])
pub fn sys_exit(exit_code: i32) -> isize {
syscall(SYSCALL_EXIT, [exit_code as usize, 0, 0])
}
pub fn sys_yield() -> isize {