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avoid redefining PAGE_SIZE/PAGE_MASK

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Daniel Micay 2018-12-05 02:07:05 -05:00
parent 9fd0670aac
commit f90fb3199d
1 changed files with 3 additions and 2 deletions
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5
pages.h
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@ -5,9 +5,10 @@
#include <stddef.h>
#define PAGE_SHIFT 12
#ifndef PAGE_SIZE
#define PAGE_SIZE ((size_t)1 << PAGE_SHIFT)
#define PAGE_MASK ((size_t)(PAGE_SIZE - 1))
#define PAGE_CEILING(s) (((s) + PAGE_MASK) & ~PAGE_MASK)
#endif
#define PAGE_CEILING(s) (((s) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
void *allocate_pages(size_t usable_size, size_t guard_size, bool unprotect);
void deallocate_pages(void *usable, size_t usable_size, size_t guard_size);