1 #include <sys/mman.h> 2 #include "libc.h" 3 #include "syscall.h" 4 __mprotect(void * addr,size_t len,int prot)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 13 weak_alias(__mprotect, mprotect); 14