Luna/kernel/src/memory/Heap.cpp

#include "memory/Heap.h"
#include "arch/MMU.h"
#include "memory/MemoryManager.h"
#include <luna/Heap.h>

Result<void*> allocate_pages_impl(usize count)
{
    return (void*)TRY(MemoryManager::alloc_for_kernel(count, MMU::ReadWrite | MMU::NoExecute));
}

Result<void> release_pages_impl(void* address, usize count)
{
    return MemoryManager::unmap_owned_and_free_vm((u64)address, count);
}
Kernel: Add a heap memory allocator This is the first time I've actually dropped liballoc in favor of writing my own implementation. Usually, malloc() and such looked so complicated that I preferred to let a nice external library do the job. But I've decided to try writing my own allocator, and now we have heap memory without any 3rd party code! 2022-11-20 14:15:26 +00:00			`#include "memory/Heap.h"`
			`#include "arch/MMU.h"`
			`#include "memory/MemoryManager.h"`
kernel, luna, libc: Move the heap code to a common zone, to be used by both kernel and userspace 2023-01-13 18:27:53 +00:00			`#include <luna/Heap.h>`
Kernel: Add a heap memory allocator This is the first time I've actually dropped liballoc in favor of writing my own implementation. Usually, malloc() and such looked so complicated that I preferred to let a nice external library do the job. But I've decided to try writing my own allocator, and now we have heap memory without any 3rd party code! 2022-11-20 14:15:26 +00:00
kernel, luna, libc: Move the heap code to a common zone, to be used by both kernel and userspace 2023-01-13 18:27:53 +00:00			`Result<void*> allocate_pages_impl(usize count)`
Introduce std::nothrow Let's make sure we explicitly tell new that we don't want exceptions 2022-12-16 17:14:48 +00:00			`{`
kernel, luna, libc: Move the heap code to a common zone, to be used by both kernel and userspace 2023-01-13 18:27:53 +00:00			`return (void*)TRY(MemoryManager::alloc_for_kernel(count, MMU::ReadWrite \| MMU::NoExecute));`
Introduce std::nothrow Let's make sure we explicitly tell new that we don't want exceptions 2022-12-16 17:14:48 +00:00			`}`

kernel, luna, libc: Move the heap code to a common zone, to be used by both kernel and userspace 2023-01-13 18:27:53 +00:00			`Result<void> release_pages_impl(void* address, usize count)`
Add kernel-side new and delete 2022-12-04 11:52:49 +00:00			`{`
kernel, luna, libc: Move the heap code to a common zone, to be used by both kernel and userspace 2023-01-13 18:27:53 +00:00			`return MemoryManager::unmap_owned_and_free_vm((u64)address, count);`
Add newlines at end-of-file 2023-01-02 12:07:29 +00:00			`}`