Tateisi/rcore-tutorial
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Substituted to the original ch7 code.

Browse source
This commit is contained in:
Yifan Wu 2022-01-18 02:48:50 -08:00
parent 4fdd55e2e8
commit 57f7debbc6
50 changed files with 2786 additions and 128 deletions
Download patch file Download diff file Expand all files Collapse all files

14
user/src/syscall.rs
View file

@ -1,5 +1,7 @@
use core::arch::asm;
const SYSCALL_DUP: usize = 24;
const SYSCALL_OPEN: usize = 56;
const SYSCALL_CLOSE: usize = 57;
const SYSCALL_PIPE: usize = 59;
const SYSCALL_READ: usize = 63;
@ -26,6 +28,14 @@ fn syscall(id: usize, args: [usize; 3]) -> isize {
ret
}
pub fn sys_dup(fd: usize) -> isize {
syscall(SYSCALL_DUP, [fd, 0, 0])
}
pub fn sys_open(path: &str, flags: u32) -> isize {
syscall(SYSCALL_OPEN, [path.as_ptr() as usize, flags as usize, 0])
}
pub fn sys_close(fd: usize) -> isize {
syscall(SYSCALL_CLOSE, [fd, 0, 0])
}
@ -63,8 +73,8 @@ pub fn sys_fork() -> isize {
syscall(SYSCALL_FORK, [0, 0, 0])
}
pub fn sys_exec(path: &str) -> isize {
syscall(SYSCALL_EXEC, [path.as_ptr() as usize, 0, 0])
pub fn sys_exec(path: &str, args: &[*const u8]) -> isize {
syscall(SYSCALL_EXEC, [path.as_ptr() as usize, args.as_ptr() as usize, 0])
}
pub fn sys_waitpid(pid: isize, exit_code: *mut i32) -> isize {