1*c9945492SAndroid Build Coastguard Worker #include <sys/mman.h> 2*c9945492SAndroid Build Coastguard Worker #include "libc.h" 3*c9945492SAndroid Build Coastguard Worker #include "syscall.h" 4*c9945492SAndroid Build Coastguard Worker __mprotect(void * addr,size_t len,int prot)5*c9945492SAndroid Build Coastguard Workerint __mprotect(void *addr, size_t len, int prot) 6*c9945492SAndroid Build Coastguard Worker { 7*c9945492SAndroid Build Coastguard Worker size_t start, end; 8*c9945492SAndroid Build Coastguard Worker start = (size_t)addr & -PAGE_SIZE; 9*c9945492SAndroid Build Coastguard Worker end = (size_t)((char *)addr + len + PAGE_SIZE-1) & -PAGE_SIZE; 10*c9945492SAndroid Build Coastguard Worker return syscall(SYS_mprotect, start, end-start, prot); 11*c9945492SAndroid Build Coastguard Worker } 12*c9945492SAndroid Build Coastguard Worker 13*c9945492SAndroid Build Coastguard Worker weak_alias(__mprotect, mprotect); 14