sys_madvise 454 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_madvise, sys_madvise) sys_madvise 876 include/linux/syscalls.h asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); sys_madvise 672 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_madvise, sys_madvise) sys_madvise 672 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_madvise, sys_madvise)