经过阅读(dú )源(yuán )码,其实不少思(sī )路和Android的匿名(míng )内存有点相(xiàng )似阅读(dú )本文之前(qián )就算(suàn )不知道dma_buf的设(shè )计思想也没关(guān )系,我(wǒ )不(bú )会(huì )仔细到(dào )每(měi )一行,我会(huì )注重(chóng )其在(zài )gralloc服务(wù )中的申请(qǐng )流程,看看ion是(shì )如何(hé )管(guǎn )理共享内存,为什么要(yào )抛弃ashmem我们
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