1#define _GNU_SOURCE 2#include <sys/mman.h> 3#include "syscall.h" 4#include <unsupported_api.h> 5 6int posix_madvise(void *addr, size_t len, int advice) 7{ 8 UNSUPPORTED_API_VOID(LITEOS_A); 9 if (advice == MADV_DONTNEED) return 0; 10 return -__syscall(SYS_madvise, addr, len, advice); 11} 12