1#include <sys/mman.h> 2#include "libc.h" 3#include "syscall.h" 4 5int __mprotect(void *addr, size_t len, int prot) 6{ 7 size_t start, end; 8 start = (size_t)addr & -PAGE_SIZE; 9 end = (size_t)((char *)addr + len + PAGE_SIZE-1) & -PAGE_SIZE; 10 return syscall(SYS_mprotect, start, end-start, prot); 11} 12 13weak_alias(__mprotect, mprotect); 14