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fix malloc mmap

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This commit is contained in:
nora 2023-10-01 16:18:25 +02:00
parent bbe7f04877
commit 609c5e6e3d
1 changed files with 13 additions and 4 deletions
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17
libuwuc/src/alloc.rs
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@ -21,18 +21,22 @@ fn init() {
match state {
Ok(_) => unsafe {
const HEAP_SIZE: usize = 0x100000;
let map_private = 0x0002;
let map_anon = 0x20;
let prot_read = 1;
let prod_write = 2;
let start = mmap(
let start = mmap_sys(
core::ptr::null(),
HEAP_SIZE,
prot_read | prod_write,
map_anon,
map_anon | map_private,
0,
0,
);
if (start as isize) < 0 {
todo!("mmap failed");
}
ALLOCATOR.lock().init(start, HEAP_SIZE);
INIT_STATE.store(INIT, Ordering::Release);
@ -80,7 +84,8 @@ pub unsafe fn free(ptr: *mut u8) {
ALLOCATOR.dealloc(start, layout);
}
pub unsafe fn mmap(
#[cfg_attr(miri, allow(unused_variables, unreachable_code))]
pub unsafe fn mmap_sys(
addr: *const u8,
size: usize,
prot: c_int,
@ -107,7 +112,11 @@ pub unsafe fn mmap(
#[cfg(test)]
mod tests {
#[test]
#[ignore = "uh"]
fn init() {
super::init();
}
#[test]
fn malloc_free() {
unsafe {
let x = super::malloc_zeroed(10, 8);