sys_getsockopt    812 include/linux/syscalls.h asmlinkage long sys_getsockopt(int fd, int level, int optname,
sys_getsockopt    611 include/uapi/asm-generic/unistd.h __SC_COMP(__NR_getsockopt, sys_getsockopt, compat_sys_getsockopt)
sys_getsockopt    611 tools/include/uapi/asm-generic/unistd.h __SC_COMP(__NR_getsockopt, sys_getsockopt, compat_sys_getsockopt)