Add syscall library, make init program Rust
This commit is contained in:
Jeremy Soller
parent
fcec69efdc
commit
46f9f90e3c
8
Makefile
8
Makefile
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@ -51,7 +51,13 @@ build/libcollections.rlib: rust/src/libcollections/lib.rs build/libcore.rlib bui
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mkdir -p build
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./rustc.sh $(RUSTCFLAGS) -o $@ $<
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build/libkernel.a: build/libcore.rlib build/liballoc.rlib build/libcollections.rlib FORCE
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build/libinit.a: init/src/*.rs
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RUSTC="./rustc.sh" cargo rustc --manifest-path init/Cargo.toml $(CARGOFLAGS) -o $@
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build/init: build/libinit.a
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$(LD) -e _start --gc-sections -o $@ $<
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build/libkernel.a: build/libcore.rlib build/liballoc.rlib build/libcollections.rlib build/init FORCE
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mkdir -p build
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RUSTC="./rustc.sh" cargo rustc $(CARGOFLAGS) -o $@
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10
init/Cargo.toml
Normal file
10
init/Cargo.toml
Normal file
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@ -0,0 +1,10 @@
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[package]
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name = "init"
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version = "0.1.0"
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[lib]
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name = "init"
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crate-type = ["staticlib"]
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[dependencies]
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syscall = { path = "../syscall/" }
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@ -1,20 +0,0 @@
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[bits 64]
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section .text
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global _start ;must be declared for linker (ld)
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_start: ;tell linker entry point
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xchg bx, bx
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mov rdx,len ;message length
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mov rcx,msg ;message to write
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mov rbx,1 ;file descriptor (stdout)
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mov rax,4 ;system call number (sys_write)
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int 0x80 ;call kernel
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mov rax,1 ;system call number (sys_exit)
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int 0x80 ;call kernel
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section .data
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msg db 'Hello, world!',0xa ;our dear string
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len equ $ - msg ;length of our dear string
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BIN
init/main.o
BIN
init/main.o
Binary file not shown.
97
init/src/lib.rs
Normal file
97
init/src/lib.rs
Normal file
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@ -0,0 +1,97 @@
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#![feature(asm)]
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#![feature(lang_items)]
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#![no_std]
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#[macro_use]
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extern crate syscall;
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use syscall::{exit, write};
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#[no_mangle]
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pub unsafe extern fn _start() {
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let string = b"Hello, World!\n";
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write(1, string);
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exit(1);
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}
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#[cfg(not(test))]
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#[lang = "eh_personality"]
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extern "C" fn eh_personality() {}
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#[cfg(not(test))]
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/// Required to handle panics
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#[lang = "panic_fmt"]
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extern "C" fn panic_fmt(_fmt: ::core::fmt::Arguments, _file: &str, _line: u32) -> ! {
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loop {}
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}
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/// Memcpy
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///
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/// Copy N bytes of memory from one location to another.
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#[no_mangle]
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pub unsafe extern fn memcpy(dest: *mut u8, src: *const u8,
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n: usize) -> *mut u8 {
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let mut i = 0;
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while i < n {
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*dest.offset(i as isize) = *src.offset(i as isize);
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i += 1;
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}
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dest
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}
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/// Memmove
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///
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/// Copy N bytes of memory from src to dest. The memory areas may overlap.
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#[no_mangle]
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pub unsafe extern fn memmove(dest: *mut u8, src: *const u8,
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n: usize) -> *mut u8 {
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if src < dest as *const u8 {
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let mut i = n;
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while i != 0 {
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i -= 1;
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*dest.offset(i as isize) = *src.offset(i as isize);
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}
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} else {
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let mut i = 0;
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while i < n {
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*dest.offset(i as isize) = *src.offset(i as isize);
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i += 1;
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}
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}
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dest
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}
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/// Memset
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///
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/// Fill a block of memory with a specified value.
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#[no_mangle]
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pub unsafe extern fn memset(s: *mut u8, c: i32, n: usize) -> *mut u8 {
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let mut i = 0;
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while i < n {
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*s.offset(i as isize) = c as u8;
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i += 1;
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}
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s
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}
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/// Memcmp
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///
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/// Compare two blocks of memory.
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#[no_mangle]
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pub unsafe extern fn memcmp(s1: *const u8, s2: *const u8, n: usize) -> i32 {
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let mut i = 0;
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while i < n {
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let a = *s1.offset(i as isize);
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let b = *s2.offset(i as isize);
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if a != b {
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return a as i32 - b as i32
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}
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i += 1;
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}
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0
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}
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@ -135,14 +135,14 @@ pub extern fn kmain() {
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let stdin = syscall::open("debug:".as_bytes(), 0);
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println!("STDIN: {:?}", stdin);
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let stdout = syscall::open("debug:".as_bytes(), 0);
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println!("STDOUT: {:?}", stdout);
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let stderr = syscall::open("debug:".as_bytes(), 0);
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println!("STDERR: {:?}", stderr);
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let elf = elf::Elf::from(include_bytes!("../init/main")).expect("could not load elf");
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let elf = elf::Elf::from(include_bytes!("../build/init")).expect("could not load elf");
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elf.run();
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/*
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3
syscall/Cargo.toml
Normal file
3
syscall/Cargo.toml
Normal file
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@ -0,0 +1,3 @@
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[package]
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name = "syscall"
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version = "0.1.0"
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314
syscall/src/error.rs
Normal file
314
syscall/src/error.rs
Normal file
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@ -0,0 +1,314 @@
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use core::{fmt, result};
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pub struct Error {
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pub errno: isize,
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}
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pub type Result<T> = result::Result<T, Error>;
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impl Error {
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pub fn new(errno: isize) -> Error {
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Error { errno: errno }
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}
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pub fn mux(result: Result<usize>) -> usize {
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match result {
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Ok(value) => value,
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Err(error) => -error.errno as usize,
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}
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}
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pub fn demux(value: usize) -> Result<usize> {
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let errno = -(value as isize);
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if errno >= 1 && errno < STR_ERROR.len() as isize {
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Err(Error::new(errno))
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} else {
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Ok(value)
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}
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}
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pub fn text(&self) -> &str {
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if let Some(description) = STR_ERROR.get(self.errno as usize) {
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description
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} else {
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"Unknown Error"
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}
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}
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}
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impl fmt::Debug for Error {
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fn fmt(&self, f: &mut fmt::Formatter) -> result::Result<(), fmt::Error> {
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f.write_str(self.text())
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}
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}
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impl fmt::Display for Error {
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fn fmt(&self, f: &mut fmt::Formatter) -> result::Result<(), fmt::Error> {
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f.write_str(self.text())
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}
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}
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pub const EPERM: isize = 1; /* Operation not permitted */
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pub const ENOENT: isize = 2; /* No such file or directory */
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pub const ESRCH: isize = 3; /* No such process */
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pub const EINTR: isize = 4; /* Interrupted system call */
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pub const EIO: isize = 5; /* I/O error */
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pub const ENXIO: isize = 6; /* No such device or address */
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pub const E2BIG: isize = 7; /* Argument list too long */
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pub const ENOEXEC: isize = 8; /* Exec format error */
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pub const EBADF: isize = 9; /* Bad file number */
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pub const ECHILD: isize = 10; /* No child processes */
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pub const EAGAIN: isize = 11; /* Try again */
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pub const ENOMEM: isize = 12; /* Out of memory */
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pub const EACCES: isize = 13; /* Permission denied */
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pub const EFAULT: isize = 14; /* Bad address */
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pub const ENOTBLK: isize = 15; /* Block device required */
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pub const EBUSY: isize = 16; /* Device or resource busy */
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pub const EEXIST: isize = 17; /* File exists */
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pub const EXDEV: isize = 18; /* Cross-device link */
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pub const ENODEV: isize = 19; /* No such device */
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pub const ENOTDIR: isize = 20; /* Not a directory */
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pub const EISDIR: isize = 21; /* Is a directory */
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pub const EINVAL: isize = 22; /* Invalid argument */
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pub const ENFILE: isize = 23; /* File table overflow */
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pub const EMFILE: isize = 24; /* Too many open files */
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pub const ENOTTY: isize = 25; /* Not a typewriter */
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pub const ETXTBSY: isize = 26; /* Text file busy */
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pub const EFBIG: isize = 27; /* File too large */
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pub const ENOSPC: isize = 28; /* No space left on device */
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pub const ESPIPE: isize = 29; /* Illegal seek */
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pub const EROFS: isize = 30; /* Read-only file system */
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pub const EMLINK: isize = 31; /* Too many links */
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pub const EPIPE: isize = 32; /* Broken pipe */
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pub const EDOM: isize = 33; /* Math argument out of domain of func */
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pub const ERANGE: isize = 34; /* Math result not representable */
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pub const EDEADLK: isize = 35; /* Resource deadlock would occur */
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pub const ENAMETOOLONG: isize = 36; /* File name too long */
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pub const ENOLCK: isize = 37; /* No record locks available */
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pub const ENOSYS: isize = 38; /* Function not implemented */
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pub const ENOTEMPTY: isize = 39; /* Directory not empty */
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pub const ELOOP: isize = 40; /* Too many symbolic links encountered */
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pub const EWOULDBLOCK: isize = 41; /* Operation would block */
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pub const ENOMSG: isize = 42; /* No message of desired type */
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pub const EIDRM: isize = 43; /* Identifier removed */
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pub const ECHRNG: isize = 44; /* Channel number out of range */
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pub const EL2NSYNC: isize = 45; /* Level 2 not synchronized */
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pub const EL3HLT: isize = 46; /* Level 3 halted */
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pub const EL3RST: isize = 47; /* Level 3 reset */
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pub const ELNRNG: isize = 48; /* Link number out of range */
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pub const EUNATCH: isize = 49; /* Protocol driver not attached */
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pub const ENOCSI: isize = 50; /* No CSI structure available */
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pub const EL2HLT: isize = 51; /* Level 2 halted */
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pub const EBADE: isize = 52; /* Invalid exchange */
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pub const EBADR: isize = 53; /* Invalid request descriptor */
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pub const EXFULL: isize = 54; /* Exchange full */
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pub const ENOANO: isize = 55; /* No anode */
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pub const EBADRQC: isize = 56; /* Invalid request code */
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pub const EBADSLT: isize = 57; /* Invalid slot */
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pub const EDEADLOCK: isize = 58; /* Resource deadlock would occur */
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pub const EBFONT: isize = 59; /* Bad font file format */
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pub const ENOSTR: isize = 60; /* Device not a stream */
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pub const ENODATA: isize = 61; /* No data available */
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pub const ETIME: isize = 62; /* Timer expired */
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pub const ENOSR: isize = 63; /* Out of streams resources */
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pub const ENONET: isize = 64; /* Machine is not on the network */
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pub const ENOPKG: isize = 65; /* Package not installed */
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pub const EREMOTE: isize = 66; /* Object is remote */
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pub const ENOLINK: isize = 67; /* Link has been severed */
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pub const EADV: isize = 68; /* Advertise error */
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pub const ESRMNT: isize = 69; /* Srmount error */
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pub const ECOMM: isize = 70; /* Communication error on send */
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pub const EPROTO: isize = 71; /* Protocol error */
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pub const EMULTIHOP: isize = 72; /* Multihop attempted */
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pub const EDOTDOT: isize = 73; /* RFS specific error */
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pub const EBADMSG: isize = 74; /* Not a data message */
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pub const EOVERFLOW: isize = 75; /* Value too large for defined data type */
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pub const ENOTUNIQ: isize = 76; /* Name not unique on network */
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pub const EBADFD: isize = 77; /* File descriptor in bad state */
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pub const EREMCHG: isize = 78; /* Remote address changed */
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pub const ELIBACC: isize = 79; /* Can not access a needed shared library */
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pub const ELIBBAD: isize = 80; /* Accessing a corrupted shared library */
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pub const ELIBSCN: isize = 81; /* .lib section in a.out corrupted */
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pub const ELIBMAX: isize = 82; /* Attempting to link in too many shared libraries */
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pub const ELIBEXEC: isize = 83; /* Cannot exec a shared library directly */
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pub const EILSEQ: isize = 84; /* Illegal byte sequence */
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pub const ERESTART: isize = 85; /* Interrupted system call should be restarted */
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pub const ESTRPIPE: isize = 86; /* Streams pipe error */
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pub const EUSERS: isize = 87; /* Too many users */
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pub const ENOTSOCK: isize = 88; /* Socket operation on non-socket */
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pub const EDESTADDRREQ: isize = 89; /* Destination address required */
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pub const EMSGSIZE: isize = 90; /* Message too long */
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pub const EPROTOTYPE: isize = 91; /* Protocol wrong type for socket */
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pub const ENOPROTOOPT: isize = 92; /* Protocol not available */
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pub const EPROTONOSUPPORT: isize = 93; /* Protocol not supported */
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pub const ESOCKTNOSUPPORT: isize = 94; /* Socket type not supported */
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pub const EOPNOTSUPP: isize = 95; /* Operation not supported on transport endpoint */
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pub const EPFNOSUPPORT: isize = 96; /* Protocol family not supported */
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pub const EAFNOSUPPORT: isize = 97; /* Address family not supported by protocol */
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pub const EADDRINUSE: isize = 98; /* Address already in use */
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pub const EADDRNOTAVAIL: isize = 99; /* Cannot assign requested address */
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pub const ENETDOWN: isize = 100; /* Network is down */
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pub const ENETUNREACH: isize = 101; /* Network is unreachable */
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pub const ENETRESET: isize = 102; /* Network dropped connection because of reset */
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pub const ECONNABORTED: isize = 103; /* Software caused connection abort */
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pub const ECONNRESET: isize = 104; /* Connection reset by peer */
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pub const ENOBUFS: isize = 105; /* No buffer space available */
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pub const EISCONN: isize = 106; /* Transport endpoint is already connected */
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pub const ENOTCONN: isize = 107; /* Transport endpoint is not connected */
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pub const ESHUTDOWN: isize = 108; /* Cannot send after transport endpoint shutdown */
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pub const ETOOMANYREFS: isize = 109; /* Too many references: cannot splice */
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pub const ETIMEDOUT: isize = 110; /* Connection timed out */
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pub const ECONNREFUSED: isize = 111; /* Connection refused */
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pub const EHOSTDOWN: isize = 112; /* Host is down */
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pub const EHOSTUNREACH: isize = 113; /* No route to host */
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pub const EALREADY: isize = 114; /* Operation already in progress */
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pub const EINPROGRESS: isize = 115; /* Operation now in progress */
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pub const ESTALE: isize = 116; /* Stale NFS file handle */
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pub const EUCLEAN: isize = 117; /* Structure needs cleaning */
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pub const ENOTNAM: isize = 118; /* Not a XENIX named type file */
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pub const ENAVAIL: isize = 119; /* No XENIX semaphores available */
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pub const EISNAM: isize = 120; /* Is a named type file */
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pub const EREMOTEIO: isize = 121; /* Remote I/O error */
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pub const EDQUOT: isize = 122; /* Quota exceeded */
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pub const ENOMEDIUM: isize = 123; /* No medium found */
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pub const EMEDIUMTYPE: isize = 124; /* Wrong medium type */
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pub const ECANCELED: isize = 125; /* Operation Canceled */
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pub const ENOKEY: isize = 126; /* Required key not available */
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pub const EKEYEXPIRED: isize = 127; /* Key has expired */
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pub const EKEYREVOKED: isize = 128; /* Key has been revoked */
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pub const EKEYREJECTED: isize = 129; /* Key was rejected by service */
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pub const EOWNERDEAD: isize = 130; /* Owner died */
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pub const ENOTRECOVERABLE: isize = 131; /* State not recoverable */
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pub static STR_ERROR: [&'static str; 132] = ["Success",
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"Operation not permitted",
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"No such file or directory",
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"No such process",
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"Interrupted system call",
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"I/O error",
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"No such device or address",
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"Argument list too long",
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"Exec format error",
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"Bad file number",
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"No child processes",
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"Try again",
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"Out of memory",
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"Permission denied",
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"Bad address",
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"Block device required",
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"Device or resource busy",
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"File exists",
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"Cross-device link",
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"No such device",
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"Not a directory",
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"Is a directory",
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"Invalid argument",
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"File table overflow",
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"Too many open files",
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"Not a typewriter",
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"Text file busy",
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"File too large",
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"No space left on device",
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"Illegal seek",
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"Read-only file system",
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"Too many links",
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"Broken pipe",
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"Math argument out of domain of func",
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"Math result not representable",
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"Resource deadlock would occur",
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"File name too long",
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"No record locks available",
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"Function not implemented",
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"Directory not empty",
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"Too many symbolic links encountered",
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"Operation would block",
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"No message of desired type",
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"Identifier removed",
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"Channel number out of range",
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"Level 2 not synchronized",
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"Level 3 halted",
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"Level 3 reset",
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"Link number out of range",
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"Protocol driver not attached",
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"No CSI structure available",
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"Level 2 halted",
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"Invalid exchange",
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"Invalid request descriptor",
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"Exchange full",
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"No anode",
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"Invalid request code",
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"Invalid slot",
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"Resource deadlock would occur",
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"Bad font file format",
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"Device not a stream",
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"No data available",
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"Timer expired",
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"Out of streams resources",
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"Machine is not on the network",
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"Package not installed",
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"Object is remote",
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"Link has been severed",
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"Advertise error",
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"Srmount error",
|
||||
"Communication error on send",
|
||||
"Protocol error",
|
||||
"Multihop attempted",
|
||||
"RFS specific error",
|
||||
"Not a data message",
|
||||
"Value too large for defined data type",
|
||||
"Name not unique on network",
|
||||
"File descriptor in bad state",
|
||||
"Remote address changed",
|
||||
"Can not access a needed shared library",
|
||||
"Accessing a corrupted shared library",
|
||||
".lib section in a.out corrupted",
|
||||
"Attempting to link in too many shared libraries",
|
||||
"Cannot exec a shared library directly",
|
||||
"Illegal byte sequence",
|
||||
"Interrupted system call should be restarted",
|
||||
"Streams pipe error",
|
||||
"Too many users",
|
||||
"Socket operation on non-socket",
|
||||
"Destination address required",
|
||||
"Message too long",
|
||||
"Protocol wrong type for socket",
|
||||
"Protocol not available",
|
||||
"Protocol not supported",
|
||||
"Socket type not supported",
|
||||
"Operation not supported on transport endpoint",
|
||||
"Protocol family not supported",
|
||||
"Address family not supported by protocol",
|
||||
"Address already in use",
|
||||
"Cannot assign requested address",
|
||||
"Network is down",
|
||||
"Network is unreachable",
|
||||
"Network dropped connection because of reset",
|
||||
"Software caused connection abort",
|
||||
"Connection reset by peer",
|
||||
"No buffer space available",
|
||||
"Transport endpoint is already connected",
|
||||
"Transport endpoint is not connected",
|
||||
"Cannot send after transport endpoint shutdown",
|
||||
"Too many references: cannot splice",
|
||||
"Connection timed out",
|
||||
"Connection refused",
|
||||
"Host is down",
|
||||
"No route to host",
|
||||
"Operation already in progress",
|
||||
"Operation now in progress",
|
||||
"Stale NFS file handle",
|
||||
"Structure needs cleaning",
|
||||
"Not a XENIX named type file",
|
||||
"No XENIX semaphores available",
|
||||
"Is a named type file",
|
||||
"Remote I/O error",
|
||||
"Quota exceeded",
|
||||
"No medium found",
|
||||
"Wrong medium type",
|
||||
"Operation Canceled",
|
||||
"Required key not available",
|
||||
"Key has expired",
|
||||
"Key has been revoked",
|
||||
"Key was rejected by service",
|
||||
"Owner died",
|
||||
"State not recoverable"];
|
||||
210
syscall/src/lib.rs
Normal file
210
syscall/src/lib.rs
Normal file
|
|
@ -0,0 +1,210 @@
|
|||
#![feature(asm)]
|
||||
#![no_std]
|
||||
|
||||
pub use self::arch::*;
|
||||
pub use self::error::*;
|
||||
|
||||
#[cfg(target_arch = "x86")]
|
||||
#[path="x86.rs"]
|
||||
pub mod arch;
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
#[path="x86_64.rs"]
|
||||
pub mod arch;
|
||||
|
||||
pub mod error;
|
||||
|
||||
pub const SYS_BRK: usize = 45;
|
||||
pub const SYS_CHDIR: usize = 12;
|
||||
pub const SYS_CLONE: usize = 120;
|
||||
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 SYS_CLOSE: usize = 6;
|
||||
pub const SYS_CLOCK_GETTIME: usize = 265;
|
||||
pub const CLOCK_REALTIME: usize = 1;
|
||||
pub const CLOCK_MONOTONIC: usize = 4;
|
||||
pub const SYS_DUP: usize = 41;
|
||||
pub const SYS_EXECVE: usize = 11;
|
||||
pub const SYS_EXIT: usize = 1;
|
||||
pub const SYS_FPATH: usize = 928;
|
||||
pub const SYS_FSTAT: usize = 28;
|
||||
pub const MODE_DIR: u16 = 0x4000;
|
||||
pub const MODE_FILE: u16 = 0x8000;
|
||||
pub const MODE_ALL: u16 = MODE_DIR | MODE_FILE;
|
||||
pub const SYS_FSYNC: usize = 118;
|
||||
pub const SYS_FTRUNCATE: usize = 93;
|
||||
pub const SYS_FUTEX: usize = 240;
|
||||
pub const FUTEX_WAIT: usize = 0;
|
||||
pub const FUTEX_WAKE: usize = 1;
|
||||
pub const FUTEX_REQUEUE: usize = 2;
|
||||
pub const SYS_GETPID: usize = 20;
|
||||
pub const SYS_IOPL: usize = 110;
|
||||
pub const SYS_LINK: usize = 9;
|
||||
pub const SYS_LSEEK: usize = 19;
|
||||
pub const SEEK_SET: usize = 0;
|
||||
pub const SEEK_CUR: usize = 1;
|
||||
pub const SEEK_END: usize = 2;
|
||||
pub const SYS_MKDIR: usize = 39;
|
||||
pub const SYS_NANOSLEEP: usize = 162;
|
||||
pub const SYS_OPEN: usize = 5;
|
||||
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;
|
||||
pub const SYS_PIPE2: usize = 331;
|
||||
pub const SYS_READ: usize = 3;
|
||||
pub const SYS_RMDIR: usize = 84;
|
||||
pub const SYS_UNLINK: usize = 10;
|
||||
pub const SYS_WAITPID: usize = 7;
|
||||
pub const SYS_WRITE: usize = 4;
|
||||
pub const SYS_YIELD: usize = 158;
|
||||
|
||||
#[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)
|
||||
}
|
||||
|
||||
pub fn chdir(path: &str) -> Result<usize> {
|
||||
unsafe { syscall2(SYS_CHDIR, path.as_ptr() as usize, path.len()) }
|
||||
}
|
||||
|
||||
pub unsafe fn clone(flags: usize) -> Result<usize> {
|
||||
syscall1(SYS_CLONE, flags)
|
||||
}
|
||||
|
||||
pub fn close(fd: usize) -> Result<usize> {
|
||||
unsafe { syscall1(SYS_CLOSE, fd) }
|
||||
}
|
||||
|
||||
pub fn clock_gettime(clock: usize, tp: &mut TimeSpec) -> Result<usize> {
|
||||
unsafe { syscall2(SYS_CLOCK_GETTIME, clock, tp as *mut TimeSpec as usize) }
|
||||
}
|
||||
|
||||
pub fn dup(fd: usize) -> Result<usize> {
|
||||
unsafe { syscall1(SYS_DUP, fd) }
|
||||
}
|
||||
|
||||
pub unsafe fn execve(path: *const u8, args: *const *const u8) -> Result<usize> {
|
||||
syscall2(SYS_EXECVE, path as usize, args as usize)
|
||||
}
|
||||
|
||||
pub fn exit(status: usize) -> Result<usize> {
|
||||
unsafe { syscall1(SYS_EXIT, status) }
|
||||
}
|
||||
|
||||
pub fn fpath(fd: usize, buf: &mut [u8]) -> Result<usize> {
|
||||
unsafe { syscall3(SYS_FPATH, fd, buf.as_mut_ptr() as usize, buf.len()) }
|
||||
}
|
||||
|
||||
pub fn fstat(fd: usize, stat: &mut Stat) -> Result<usize> {
|
||||
unsafe { syscall2(SYS_FSTAT, fd, stat as *mut Stat as usize) }
|
||||
}
|
||||
|
||||
pub fn fsync(fd: usize) -> Result<usize> {
|
||||
unsafe { syscall1(SYS_FSYNC, fd) }
|
||||
}
|
||||
|
||||
pub fn ftruncate(fd: usize, len: usize) -> Result<usize> {
|
||||
unsafe { syscall2(SYS_FTRUNCATE, fd, len) }
|
||||
}
|
||||
|
||||
pub unsafe fn futex(addr: *mut i32, op: usize, val: i32, val2: usize, addr2: *mut i32) -> Result<usize> {
|
||||
syscall5(SYS_FUTEX, addr as usize, op, (val as isize) as usize, val2, addr2 as usize)
|
||||
}
|
||||
|
||||
pub fn getpid() -> Result<usize> {
|
||||
unsafe { syscall0(SYS_GETPID) }
|
||||
}
|
||||
|
||||
pub unsafe fn iopl(level: usize) -> Result<usize> {
|
||||
syscall1(SYS_IOPL, level)
|
||||
}
|
||||
|
||||
pub unsafe fn link(old: *const u8, new: *const u8) -> Result<usize> {
|
||||
syscall2(SYS_LINK, old as usize, new as usize)
|
||||
}
|
||||
|
||||
pub fn lseek(fd: usize, offset: isize, whence: usize) -> Result<usize> {
|
||||
unsafe { syscall3(SYS_LSEEK, fd, offset as usize, whence) }
|
||||
}
|
||||
|
||||
pub fn mkdir(path: &str, mode: usize) -> Result<usize> {
|
||||
unsafe { syscall3(SYS_MKDIR, path.as_ptr() as usize, path.len(), mode) }
|
||||
}
|
||||
|
||||
pub fn nanosleep(req: &TimeSpec, rem: &mut TimeSpec) -> Result<usize> {
|
||||
unsafe { syscall2(SYS_NANOSLEEP, req as *const TimeSpec as usize, rem as *mut TimeSpec as usize) }
|
||||
}
|
||||
|
||||
pub fn open(path: &str, flags: usize) -> Result<usize> {
|
||||
unsafe { syscall3(SYS_OPEN, path.as_ptr() as usize, path.len(), flags) }
|
||||
}
|
||||
|
||||
pub fn pipe2(fds: &mut [usize; 2], flags: usize) -> Result<usize> {
|
||||
unsafe { syscall2(SYS_PIPE2, fds.as_ptr() as usize, flags) }
|
||||
}
|
||||
|
||||
pub fn read(fd: usize, buf: &mut [u8]) -> Result<usize> {
|
||||
unsafe { syscall3(SYS_READ, fd, buf.as_mut_ptr() as usize, buf.len()) }
|
||||
}
|
||||
|
||||
pub fn rmdir(path: &str) -> Result<usize> {
|
||||
unsafe { syscall2(SYS_RMDIR, path.as_ptr() as usize, path.len()) }
|
||||
}
|
||||
|
||||
pub fn unlink(path: &str) -> Result<usize> {
|
||||
unsafe { syscall2(SYS_UNLINK, path.as_ptr() as usize, path.len()) }
|
||||
}
|
||||
|
||||
pub fn waitpid(pid: usize, status: &mut usize, options: usize) -> Result<usize> {
|
||||
unsafe { syscall3(SYS_WAITPID, pid, status as *mut usize as usize, options) }
|
||||
}
|
||||
|
||||
pub fn write(fd: usize, buf: &[u8]) -> Result<usize> {
|
||||
unsafe { syscall3(SYS_WRITE, fd, buf.as_ptr() as usize, buf.len()) }
|
||||
}
|
||||
|
||||
pub fn sched_yield() -> Result<usize> {
|
||||
unsafe { syscall0(SYS_YIELD) }
|
||||
}
|
||||
61
syscall/src/x86.rs
Normal file
61
syscall/src/x86.rs
Normal file
|
|
@ -0,0 +1,61 @@
|
|||
use error::{Error, Result};
|
||||
|
||||
pub unsafe fn syscall0(mut a: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={eax}"(a)
|
||||
: "{eax}"(a)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall1(mut a: usize, b: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={eax}"(a)
|
||||
: "{eax}"(a), "{ebx}"(b)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall2(mut a: usize, b: usize, c: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={eax}"(a)
|
||||
: "{eax}"(a), "{ebx}"(b), "{ecx}"(c)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall3(mut a: usize, b: usize, c: usize, d: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={eax}"(a)
|
||||
: "{eax}"(a), "{ebx}"(b), "{ecx}"(c), "{edx}"(d)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall4(mut a: usize, b: usize, c: usize, d: usize, e: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={eax}"(a)
|
||||
: "{eax}"(a), "{ebx}"(b), "{ecx}"(c), "{edx}"(d), "{esi}"(e)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall5(mut a: usize, b: usize, c: usize, d: usize, e: usize, f: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={eax}"(a)
|
||||
: "{eax}"(a), "{ebx}"(b), "{ecx}"(c), "{edx}"(d), "{esi}"(e), "{edi}"(f)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
61
syscall/src/x86_64.rs
Normal file
61
syscall/src/x86_64.rs
Normal file
|
|
@ -0,0 +1,61 @@
|
|||
use error::{Error, Result};
|
||||
|
||||
pub unsafe fn syscall0(mut a: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={rax}"(a)
|
||||
: "{rax}"(a)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall1(mut a: usize, b: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={rax}"(a)
|
||||
: "{rax}"(a), "{rbx}"(b)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall2(mut a: usize, b: usize, c: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={rax}"(a)
|
||||
: "{rax}"(a), "{rbx}"(b), "{rcx}"(c)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall3(mut a: usize, b: usize, c: usize, d: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={rax}"(a)
|
||||
: "{rax}"(a), "{rbx}"(b), "{rcx}"(c), "{rdx}"(d)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall4(mut a: usize, b: usize, c: usize, d: usize, e: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={rax}"(a)
|
||||
: "{rax}"(a), "{rbx}"(b), "{rcx}"(c), "{rdx}"(d), "{rsi}"(e)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
|
||||
pub unsafe fn syscall5(mut a: usize, b: usize, c: usize, d: usize, e: usize, f: usize) -> Result<usize> {
|
||||
asm!("int 0x80"
|
||||
: "={rax}"(a)
|
||||
: "{rax}"(a), "{rbx}"(b), "{rcx}"(c), "{rdx}"(d), "{rsi}"(e), "{rdi}"(f)
|
||||
: "memory"
|
||||
: "intel", "volatile");
|
||||
|
||||
Error::demux(a)
|
||||
}
|
||||
Loading…
Reference in a new issue