copyout           186 defs.h         int             copyout(pde_t*, uint, void*, uint);
copyout            76 exec.c             if(copyout(pgdir, sp, argv[argc], strlen(argv[argc]) + 1) < 0)
copyout            87 exec.c           if(copyout(pgdir, sp, ustack, (3+argc+1)*4) < 0)