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mirror of https://github.com/XunilGroup/XunilOS.git synced 2026-04-25 11:49:03 +02:00
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Add a usermode address space which can be switched to, make

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FRAME_ALLOCATOR global, make XunilFrameAllocator not hold Limine entries
so it can be used without lifetimes, implement the process struct, add
user heap by giving back heap_start from ELF and adding sbrk syscall,
align ELF loading in userspace_stub, implement lots of libc functions in
libxunil, remove x86_64 dependency from libxunil, add malloc and all
required heap functions to libxunil and more syscall numbers, add a util
file to libxunil, add build scripts for libxunil and doomgeneric
This commit is contained in:
csd4ni3l
2026-04-05 20:12:59 +02:00
parent 1e899e2f97
commit ae3915147a
26 changed files with 785 additions and 219 deletions
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25
kernel/src/arch/x86_64/init.rs
View File

@@ -5,6 +5,7 @@ use crate::{
mouse::setup_mouse,
},
driver::mouse::MOUSE,
util::serial_print,
};
use limine::response::{HhdmResponse, MemoryMapResponse};
use x86_64::instructions::interrupts::without_interrupts;
@@ -16,21 +17,22 @@ const PIT_DIVISOR: u16 = (1_193_182_u32 / TIMER_PRECISION_HZ) as u16;
#[cfg(target_arch = "x86_64")]
use crate::arch::x86_64::{
heap::init_heap,
paging::{XunilFrameAllocator, initialize_paging},
paging::{FRAME_ALLOCATOR_X86_64, XunilFrameAllocator, initialize_paging},
};
#[cfg(target_arch = "x86_64")]
use x86_64::{VirtAddr, structures::paging::OffsetPageTable};
#[cfg(target_arch = "x86_64")]
pub fn memory_management_init<'a>(
pub fn memory_management_init(
hhdm_response: &HhdmResponse,
memory_map_response: &'a MemoryMapResponse,
) -> (OffsetPageTable<'static>, XunilFrameAllocator<'a>) {
memory_map_response: &MemoryMapResponse,
) -> OffsetPageTable<'static> {
let physical_offset = VirtAddr::new(hhdm_response.offset());
let mapper = unsafe { initialize_paging(physical_offset) };
let frame_allocator =
XunilFrameAllocator::new(hhdm_response.offset(), memory_map_response.entries());
(mapper, frame_allocator)
let mut frame_allocator = FRAME_ALLOCATOR_X86_64.lock();
frame_allocator.initialize(hhdm_response.offset(), memory_map_response.entries());
drop(frame_allocator);
mapper
}
pub fn set_pit_interval() {
@@ -49,7 +51,7 @@ pub fn set_pit_interval() {
pub fn init_x86_64<'a>(
hhdm_response: &HhdmResponse,
memory_map_response: &'a MemoryMapResponse,
) -> (OffsetPageTable<'static>, XunilFrameAllocator<'a>) {
) -> OffsetPageTable<'static> {
load_gdt_x86_64();
init_idt_x86_64();
@@ -66,14 +68,13 @@ pub fn init_x86_64<'a>(
interrupts::enable();
let (mut mapper, mut frame_allocator) =
memory_management_init(hhdm_response, memory_map_response);
let mut mapper = memory_management_init(hhdm_response, memory_map_response);
init_heap(&mut mapper, &mut frame_allocator)
init_heap(&mut mapper)
.ok()
.expect("Failed to initalize heap");
MOUSE.set_status(mouse_status);
return (mapper, frame_allocator);
return mapper;
}