The key is the test TST_SEL_RET on line 682. It compares the RPL of the return CS selector (saved on the stack by the original CALL) against the current CPL. If RPL == CPL, the PLA returns 0x000 (continue) and LD_DESCRIPTOR finishes normally -- same-privilege return. If RPL CPL, the caller is returning to a less-privileged ring, so the PLA redirects to 0x686 (RETF_OUTER_LEV) -- the cross-privilege path that must also restore the caller's stack. If RPL
But when Fretwell looked at the satellite pictures, he saw few signs of the birds.
，这一点在一键获取谷歌浏览器下载中也有详细论述
Max: 296.623 ms
全年批发和零售业增加值145808亿元，比上年增长5.0%；交通运输、仓储和邮政业增加值62092亿元，增长5.2%；住宿和餐饮业增加值26403亿元，增长4.9%；金融业增加值101337亿元，增长4.5%；房地产业增加值83024亿元，增长0.2%；信息传输、软件和信息技术服务业增加值70599亿元，增长11.1%；租赁和商务服务业增加值63666亿元，增长10.3%。部分服务行业规模以上企业[30]营业收入比上年增长6.8%，利润总额增长1.9%。（见图12）
// Use it directly