diff options
Diffstat (limited to 'vendor/redox_syscall/src/arch/aarch64.rs')
-rw-r--r-- | vendor/redox_syscall/src/arch/aarch64.rs | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/vendor/redox_syscall/src/arch/aarch64.rs b/vendor/redox_syscall/src/arch/aarch64.rs new file mode 100644 index 0000000..e792427 --- /dev/null +++ b/vendor/redox_syscall/src/arch/aarch64.rs @@ -0,0 +1,150 @@ +use core::{mem, slice}; +use core::ops::{Deref, DerefMut}; + +use super::error::{Error, Result}; + +pub const PAGE_SIZE: usize = 4096; + +macro_rules! syscall { + ($($name:ident($a:ident, $($b:ident, $($c:ident, $($d:ident, $($e:ident, $($f:ident, )?)?)?)?)?);)+) => { + $( + pub unsafe fn $name($a: usize, $($b: usize, $($c: usize, $($d: usize, $($e: usize, $($f: usize)?)?)?)?)?) -> Result<usize> { + let ret: usize; + + core::arch::asm!( + "svc 0", + in("x8") $a, + $( + in("x0") $b, + $( + in("x1") $c, + $( + in("x2") $d, + $( + in("x3") $e, + $( + in("x4") $f, + )? + )? + )? + )? + )? + lateout("x0") ret, + options(nostack), + ); + + Error::demux(ret) + } + )+ + }; +} + +syscall! { + syscall0(a,); + syscall1(a, b,); + syscall2(a, b, c,); + syscall3(a, b, c, d,); + syscall4(a, b, c, d, e,); + syscall5(a, b, c, d, e, f,); +} + +#[derive(Copy, Clone, Debug, Default)] +#[repr(C)] +pub struct IntRegisters { + pub x30: usize, + pub x29: usize, + pub x28: usize, + pub x27: usize, + pub x26: usize, + pub x25: usize, + pub x24: usize, + pub x23: usize, + pub x22: usize, + pub x21: usize, + pub x20: usize, + pub x19: usize, + pub x18: usize, + pub x17: usize, + pub x16: usize, + pub x15: usize, + pub x14: usize, + pub x13: usize, + pub x12: usize, + pub x11: usize, + pub x10: usize, + pub x9: usize, + pub x8: usize, + pub x7: usize, + pub x6: usize, + pub x5: usize, + pub x4: usize, + pub x3: usize, + pub x2: usize, + pub x1: usize, + pub x0: usize +} + +impl Deref for IntRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const IntRegisters as *const u8, mem::size_of::<IntRegisters>()) + } + } +} + +impl DerefMut for IntRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut IntRegisters as *mut u8, mem::size_of::<IntRegisters>()) + } + } +} + +#[derive(Clone, Copy, Debug, Default)] +#[repr(packed)] +pub struct FloatRegisters { + pub fp_simd_regs: [u128; 32], + pub fpsr: u32, + pub fpcr: u32 +} + +impl Deref for FloatRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const FloatRegisters as *const u8, mem::size_of::<FloatRegisters>()) + } + } +} + +impl DerefMut for FloatRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut FloatRegisters as *mut u8, mem::size_of::<FloatRegisters>()) + } + } +} + +#[derive(Clone, Copy, Debug, Default)] +#[repr(packed)] +pub struct EnvRegisters { + pub tpidr_el0: usize, + pub tpidrro_el0: usize, +} +impl Deref for EnvRegisters { + type Target = [u8]; + fn deref(&self) -> &[u8] { + unsafe { + slice::from_raw_parts(self as *const EnvRegisters as *const u8, mem::size_of::<EnvRegisters>()) + } + } +} + +impl DerefMut for EnvRegisters { + fn deref_mut(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self as *mut EnvRegisters as *mut u8, mem::size_of::<EnvRegisters>()) + } + } +} |