ladybird/Kernel/kmalloc.h
Andreas Kling 3ac977f50b Paper over a race in DoubleBuffer.
I'm still somewhat okay throwing InterruptDisabler at races as they screw me.
Eventually I'm gonna have to devise a different strategy though.
2019-01-12 23:23:35 +01:00

28 lines
842 B
C

#pragma once
void kmalloc_init();
void* kmalloc_impl(dword size) __attribute__ ((malloc));
void* kmalloc_eternal(size_t) __attribute__ ((malloc));
void* kmalloc_page_aligned(size_t) __attribute__ ((malloc));
void* kmalloc_aligned(size_t, size_t alignment) __attribute__ ((malloc));
void kfree(void*);
void kfree_aligned(void*);
bool is_kmalloc_address(void*);
extern volatile size_t sum_alloc;
extern volatile size_t sum_free;
extern volatile size_t kmalloc_sum_eternal;
extern volatile size_t kmalloc_sum_page_aligned;
inline void* operator new(size_t, void* p) { return p; }
inline void* operator new[](size_t, void* p) { return p; }
ALWAYS_INLINE void* kmalloc(size_t size)
{
// Any kernel allocation >= 32K is very suspicious, catch them.
if (size >= 0x8000)
asm volatile("cli;hlt");
return kmalloc_impl(size);
}