24 lines
503 B
C
24 lines
503 B
C
#pragma once
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#include <stddef.h>
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#include <stdint.h>
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#ifndef PAGE_SIZE
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#define PAGE_SIZE 4096
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#endif
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inline uintptr_t get_top_of_stack(uintptr_t bottom, size_t stack_pages)
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{
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return bottom + (stack_pages * PAGE_SIZE) - sizeof(uintptr_t);
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}
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inline uintptr_t round_down_to_nearest_page(uintptr_t addr)
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{
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return addr - (addr % PAGE_SIZE);
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}
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inline uintptr_t round_up_to_nearest_page(uintptr_t addr)
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{
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if (addr % PAGE_SIZE) return addr + (PAGE_SIZE - (addr % PAGE_SIZE));
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return addr;
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} |