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Enable SSE and FPU

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This commit is contained in:
Jeremy Soller 2016-09-22 16:14:45 -06:00
parent e3df5194fe
commit bc1b503d25
7 changed files with 37 additions and 4 deletions
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16
kernel/syscall/process.rs
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@ -1,6 +1,6 @@
///! Process syscalls
use alloc::arc::Arc;
use alloc::boxed::Box;
use collections::Vec;
use core::mem;
use core::str;
@ -58,6 +58,7 @@ pub fn clone(flags: usize, stack_base: usize) -> Result<usize> {
let pid;
{
let arch;
let mut kfx_option = None;
let mut kstack_option = None;
let mut offset = 0;
let mut image = vec![];
@ -77,6 +78,14 @@ pub fn clone(flags: usize, stack_base: usize) -> Result<usize> {
arch = context.arch.clone();
if let Some(ref fx) = context.kfx {
let mut new_fx = unsafe { Box::from_raw(::alloc::heap::allocate(512, 16) as *mut [u8; 512]) };
for (new_b, b) in new_fx.iter_mut().zip(fx.iter()) {
*new_b = *b;
}
kfx_option = Some(new_fx);
}
if let Some(ref stack) = context.kstack {
offset = stack_base - stack.as_ptr() as usize - mem::size_of::<usize>(); // Add clone ret
let mut new_stack = stack.clone();
@ -238,6 +247,11 @@ pub fn clone(flags: usize, stack_base: usize) -> Result<usize> {
});
}
if let Some(fx) = kfx_option.take() {
context.arch.set_fx(fx.as_ptr() as usize);
context.kfx = Some(fx);
}
// Set kernel stack
if let Some(stack) = kstack_option.take() {
context.arch.set_stack(stack.as_ptr() as usize + offset);