rust-kernel / src / errno.rs

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//! Error numbers, same values as Linux (`man 3 errno`). Syscalls return
//! `-errno` in rax on failure, like Linux does.

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(i64)]
pub enum Errno {
    ENOENT = 2,        // no such file or directory
    EBADF = 9,         // bad file descriptor
    EFAULT = 14,       // bad address (pointer not in user space / not mapped)
    EEXIST = 17,       // file exists
    ENOTDIR = 20,      // a path component isn't a directory
    EISDIR = 21,       // is a directory
    EINVAL = 22,       // invalid argument
    EMFILE = 24,       // too many open files
    ENAMETOOLONG = 36, // path too long
    ENOSYS = 38,       // no such system call
}