42 lines
971 B
C
42 lines
971 B
C
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#include "memory.h"
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#include "paging_internal.h"
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#include "../runtime/stdio.h"
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#include "../interrupt/interrupt.h"
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#include <stdint.h>
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#include "../extlib/liballoc/liballoc_1_1.h"
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int liballoc_lock() {
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if (interrupt_Enabled)
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asm volatile("cli");
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return 0;
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}
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int liballoc_unlock() {
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if (interrupt_Enabled)
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asm volatile("sti");
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return 0;
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}
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static uint64_t heapBreak = KERNEL_HEAP_VIRTUAL;
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void *liballoc_alloc(size_t pages) {
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void *ret = (void *)heapBreak;
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heapBreak += SYSTEM_PAGE_SIZE * pages;
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paging_map_PageAllocated((uint64_t)ret, pages, MAP_PROT_READ | MAP_PROT_WRITE);
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io_Printf("liballoc_alloc: allocated %u pages at HEAP+%llx (%llx)\n", pages, ret - KERNEL_HEAP_VIRTUAL, ret);
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return ret;
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}
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int liballoc_free(void *ptr, size_t pages) {
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paging_map_FreeAllocated((uint64_t)ptr, (uint64_t)ptr + SYSTEM_PAGE_SIZE * pages);
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io_Printf("liballoc_free: freed %u pages at HEAP+%llx (%llx)\n", pages, ptr - KERNEL_HEAP_VIRTUAL, ptr);
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return 0;
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}
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