gexec
error = gexec(&nvp, uap, args, &idata, ++level, execsz, exec_file, cred,
error = gexec(&nvp, uap, args, &idata, level + 1, execsz, execfile,
error = gexec(&nvp, uap, args, &idata, ++level, execsz, exec_file, cred,
if ((error = gexec(&vp, &ua, &args, NULL, 0, &execsz,
extern int gexec(vnode_t **vp, struct execa *uap, struct uarg *args,