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Kernel: Move kmalloc() into a Kernel/Heap/ directory

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This commit is contained in:
Andreas Kling 2019-09-16 09:01:44 +02:00
parent 6557a31049
commit 1c692e87a6
11 changed files with 14 additions and 16 deletions
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36
Kernel/Heap/kmalloc.h Normal file
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@ -0,0 +1,36 @@
#pragma once
#include <AK/Types.h>
//#define KMALLOC_DEBUG_LARGE_ALLOCATIONS
void kmalloc_init();
[[gnu::malloc, gnu::returns_nonnull, gnu::alloc_size(1)]] void* kmalloc_impl(size_t);
[[gnu::malloc, gnu::returns_nonnull, gnu::alloc_size(1)]] void* kmalloc_eternal(size_t);
[[gnu::malloc, gnu::returns_nonnull, gnu::alloc_size(1)]] void* kmalloc_page_aligned(size_t);
[[gnu::malloc, gnu::returns_nonnull, gnu::alloc_size(1)]] void* kmalloc_aligned(size_t, size_t alignment);
void kfree(void*);
void kfree_aligned(void*);
bool is_kmalloc_address(const 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;
extern u32 g_kmalloc_call_count;
extern u32 g_kfree_call_count;
extern bool g_dump_kmalloc_stacks;
inline void* operator new(size_t, void* p) { return p; }
inline void* operator new[](size_t, void* p) { return p; }
[[gnu::always_inline]] inline void* kmalloc(size_t size)
{
#ifdef KMALLOC_DEBUG_LARGE_ALLOCATIONS
// Any kernel allocation >= 1M is 99.9% a bug.
if (size >= 1048576)
asm volatile("cli;hlt");
#endif
return kmalloc_impl(size);
}