vendor/redox_syscall-0.1.31/src/arch/x86.rs

   1 use super::error::{Error, Result};
   2
   3 pub unsafe fn syscall0(mut a: usize) -> Result<usize> {
   4     asm!("int 0x80"
   5         : "={eax}"(a)
   6         : "{eax}"(a)
   7         : "memory"
   8         : "intel", "volatile");
   9
  10     Error::demux(a)
  11 }
  12
  13 pub unsafe fn syscall1(mut a: usize, b: usize) -> Result<usize> {
  14     asm!("int 0x80"
  15         : "={eax}"(a)
  16         : "{eax}"(a), "{ebx}"(b)
  17         : "memory"
  18         : "intel", "volatile");
  19
  20     Error::demux(a)
  21 }
  22
  23 // Clobbers all registers - special for clone
  24 pub unsafe fn syscall1_clobber(mut a: usize, b: usize) -> Result<usize> {
  25     asm!("int 0x80"
  26         : "={eax}"(a)
  27         : "{eax}"(a), "{ebx}"(b)
  28         : "memory", "ebx", "ecx", "edx", "esi", "edi"
  29         : "intel", "volatile");
  30
  31     Error::demux(a)
  32 }
  33
  34 pub unsafe fn syscall2(mut a: usize, b: usize, c: usize) -> Result<usize> {
  35     asm!("int 0x80"
  36         : "={eax}"(a)
  37         : "{eax}"(a), "{ebx}"(b), "{ecx}"(c)
  38         : "memory"
  39         : "intel", "volatile");
  40
  41     Error::demux(a)
  42 }
  43
  44 pub unsafe fn syscall3(mut a: usize, b: usize, c: usize, d: usize) -> Result<usize> {
  45     asm!("int 0x80"
  46         : "={eax}"(a)
  47         : "{eax}"(a), "{ebx}"(b), "{ecx}"(c), "{edx}"(d)
  48         : "memory"
  49         : "intel", "volatile");
  50
  51     Error::demux(a)
  52 }
  53
  54 pub unsafe fn syscall4(mut a: usize, b: usize, c: usize, d: usize, e: usize) -> Result<usize> {
  55     asm!("int 0x80"
  56         : "={eax}"(a)
  57         : "{eax}"(a), "{ebx}"(b), "{ecx}"(c), "{edx}"(d), "{esi}"(e)
  58         : "memory"
  59         : "intel", "volatile");
  60
  61     Error::demux(a)
  62 }
  63
  64 pub unsafe fn syscall5(mut a: usize, b: usize, c: usize, d: usize, e: usize, f: usize)
  65                        -> Result<usize> {
  66     asm!("int 0x80"
  67         : "={eax}"(a)
  68         : "{eax}"(a), "{ebx}"(b), "{ecx}"(c), "{edx}"(d), "{esi}"(e), "{edi}"(f)
  69         : "memory"
  70         : "intel", "volatile");
  71
  72     Error::demux(a)
  73 }