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#include <assert.h>
#include <ksbrk.h>
#include <mmu.h>
#include <stddef.h>
#include <stdint.h>
/*
extern uintptr_t data_end;
extern PageDirectory *kernel_directory;
#define HEAP 0x00E00000
#define PHYS 0x403000
#define PAGE_SIZE ((uintptr_t)0x1000)
void *ksbrk(size_t s) {
uintptr_t rc = (uintptr_t)align_page((void *)data_end);
data_end += s;
data_end = (uintptr_t)align_page((void *)data_end);
if (!get_active_pagedirectory()) {
// If there is no active pagedirectory we
// just assume that the memory is
// already mapped.
return (void *)rc;
}
mmu_allocate_shared_kernel_region((void *)rc, (data_end - (uintptr_t)rc));
assert(((uintptr_t)rc % PAGE_SIZE) == 0);
memset((void *)rc, 0xFF, s);
return (void *)rc;
}
void *ksbrk_physical(size_t s, void **physical) {
void *r = ksbrk(s);
if (physical) {
// if (0 == get_active_pagedirectory())
// *physical = (void *)((uintptr_t)r - (0xC0000000 + PHYS) + HEAP);
// else
*physical = (void *)virtual_to_physical(r, 0);
}
return r;
}*/
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