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Implement more system calls

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This commit is contained in:
Jeremy Soller 2016-09-20 16:57:45 -06:00
commit ed3170bdcc
1 changed files with 224 additions and 124 deletions
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70
syscall/src/lib.rs
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@ -2,7 +2,9 @@
#![no_std]
pub use self::arch::*;
pub use self::data::*;
pub use self::error::*;
pub use self::flag::*;
pub use self::number::*;
pub use self::scheme::*;
@ -14,76 +16,16 @@ mod arch;
#[path="x86_64.rs"]
mod arch;
pub mod data;
pub mod error;
pub mod flag;
pub mod number;
pub mod scheme;
pub const CLONE_VM: usize = 0x100;
pub const CLONE_FS: usize = 0x200;
pub const CLONE_FILES: usize = 0x400;
pub const CLONE_VFORK: usize = 0x4000;
/// Mark this clone as supervised.
///
/// This means that the process can run in supervised mode, even not being connected to
/// a supervisor yet. In other words, the parent can later on supervise the process and handle
/// the potential blocking syscall.
///
/// This is an important security measure, since otherwise the process would be able to fork it
/// self right after starting, making supervising it impossible.
pub const CLONE_SUPERVISE: usize = 0x400000;
pub const CLOCK_REALTIME: usize = 1;
pub const CLOCK_MONOTONIC: usize = 4;
pub const MODE_DIR: u16 = 0x4000;
pub const MODE_FILE: u16 = 0x8000;
pub const MODE_ALL: u16 = MODE_DIR | MODE_FILE;
pub const FUTEX_WAIT: usize = 0;
pub const FUTEX_WAKE: usize = 1;
pub const FUTEX_REQUEUE: usize = 2;
pub const SEEK_SET: usize = 0;
pub const SEEK_CUR: usize = 1;
pub const SEEK_END: usize = 2;
pub const O_RDONLY: usize = 0;
pub const O_WRONLY: usize = 1;
pub const O_RDWR: usize = 2;
pub const O_NONBLOCK: usize = 4;
pub const O_APPEND: usize = 8;
pub const O_SHLOCK: usize = 0x10;
pub const O_EXLOCK: usize = 0x20;
pub const O_ASYNC: usize = 0x40;
pub const O_FSYNC: usize = 0x80;
pub const O_CREAT: usize = 0x200;
pub const O_TRUNC: usize = 0x400;
pub const O_EXCL: usize = 0x800;
#[derive(Copy, Clone, Debug, Default)]
#[repr(packed)]
pub struct Stat {
pub st_dev: u16,
pub st_ino: u16,
pub st_mode: u16,
pub st_nlink: u16,
pub st_uid: u16,
pub st_gid: u16,
pub st_rdev: u16,
pub st_size: u32,
pub st_atime: u32,
pub st_mtime: u32,
pub st_ctime: u32
}
#[derive(Copy, Clone, Debug, Default)]
#[repr(packed)]
pub struct TimeSpec {
pub tv_sec: i64,
pub tv_nsec: i32,
}
pub unsafe fn brk(addr: usize) -> Result<usize> {
syscall1(SYS_BRK, addr)
}