The "uname" command shows up incorrect results

[wangyisong1996]

• Ubuntu 20.04 Desktop (64 bit)
• rustup 1.21.1 (7832b2ebe 2019-12-20)
• rustc 1.44.0-nightly (b543afca9 2020-04-05)
• Followed README.md to build zCore
• Run cargo run --release -p linux-loader /bin/busybox uname -a
• Got the result
  rCore orz 0.1.0 1 machine Linux

Should zCore kernel have a uname starting with zCore?

[yunwei37]

It seems the uname string is hard-coded：

in linux-syscall/src/misc.rs

pub fn sys_uname(&self, buf: UserOutPtr<u8>) -> SysResult {
        info!("uname: buf={:?}", buf);

        let strings = ["rCore", "orz", "0.1.0", "1", "machine", "domain"];
        for (i, &s) in strings.iter().enumerate() {
            const OFFSET: usize = 65;
            buf.add(i * OFFSET).write_cstring(s)?;
        }
        Ok(0)
    }

[wangrunji0408]

The uname should start with Linux because some programs will check this field.