增加mknod系统调用 (#19)

Cargo.toml

@@ -42,7 +42,7 @@ sc = "0.2.3"
 
 [target.'cfg(target_os = "dragonos")'.dependencies]
 # Development
-dragonos-dsc = { git = "https://github.com/DragonOS-Community/dsc.git", rev = "d6e4fd8" }
+dragonos-dsc = { git = "https://git.mirrors.dragonos.org/DragonOS-Community/dragonos-dsc.git", rev = "539a8cdce8" }
 
 [target.'cfg(target_os = "redox")'.dependencies]
 redox_syscall = "0.3"

src/platform/dragonos/mod.rs

@@ -353,8 +353,7 @@ impl Pal for Sys {
     }
 
     fn mkfifo(path: &CStr, mode: mode_t) -> c_int {
-        // e(unsafe { syscall!(MKNODAT, AT_FDCWD, path.as_ptr(), mode | S_IFIFO, 0) }) as c_int
-        unimplemented!()
+        e(unsafe { syscall!(SYS_MKNOD, path.as_ptr(), mode | S_IFIFO, 0) }) as c_int
     }
 
     unsafe fn mlock(addr: *const c_void, len: usize) -> c_int {