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Use linked list allocator instead of bump allocator

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Philipp Oppermann
2017-11-19 14:16:33 +01:00
parent 01f8c43ffb
commit ad211de615
2 changed files with 11 additions and 5 deletions
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1
Cargo.toml
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@@ -14,3 +14,4 @@ multiboot2 = "0.1.0"
bitflags = "0.7.0" bitflags = "0.7.0"
x86_64 = "0.1.2" x86_64 = "0.1.2"
once = "0.3.3" once = "0.3.3"
linked_list_allocator = "0.4.2"

15
src/lib.rs
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@@ -20,6 +20,7 @@ extern crate bitflags;
extern crate x86_64; extern crate x86_64;
#[macro_use] #[macro_use]
extern crate once; extern crate once;
extern crate linked_list_allocator;
#[macro_use] #[macro_use]
mod vga_buffer; mod vga_buffer;
@@ -40,8 +41,13 @@ pub extern "C" fn rust_main(multiboot_information_address: usize) {
// set up guard page and map the heap pages // set up guard page and map the heap pages
memory::init(boot_info); memory::init(boot_info);
use alloc::boxed::Box; unsafe {
let heap_test = Box::new(42); HEAP_ALLOCATOR.lock().init(HEAP_START, HEAP_START + HEAP_SIZE);
}
for i in 0..10000 {
format!("Some String");
}
println!("It did not crash!"); println!("It did not crash!");
@@ -74,11 +80,10 @@ pub extern fn panic_fmt(fmt: core::fmt::Arguments, file: &'static str, line: u32
loop{} loop{}
} }
use memory::heap_allocator::BumpAllocator; use linked_list_allocator::LockedHeap;
pub const HEAP_START: usize = 0o_000_001_000_000_0000; pub const HEAP_START: usize = 0o_000_001_000_000_0000;
pub const HEAP_SIZE: usize = 100 * 1024; // 100 KiB pub const HEAP_SIZE: usize = 100 * 1024; // 100 KiB
#[global_allocator] #[global_allocator]
static HEAP_ALLOCATOR: BumpAllocator = BumpAllocator::new(HEAP_START, static HEAP_ALLOCATOR: LockedHeap = LockedHeap::empty();
HEAP_START + HEAP_SIZE);