sys_shmctl        793 include/linux/syscalls.h asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
sys_shmctl        581 include/uapi/asm-generic/unistd.h __SC_COMP(__NR_shmctl, sys_shmctl, compat_sys_shmctl)
sys_shmctl        581 tools/include/uapi/asm-generic/unistd.h __SC_COMP(__NR_shmctl, sys_shmctl, compat_sys_shmctl)