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Pstore dmesg read篇 | fiking #14

Open fiking opened 3 years ago

fiking commented 3 years ago

https://fiking.github.io/2021/01/08/Pstore-dmesg-read%E7%AF%87/

当系统重启后，可以把数据从pstore中读出来，并创建文件节点，提供用户接口来获取文本数据。 12345678static int ramoops_probe(struct platform_device pdev){ / 从pstore中取出数据 */ err = ramoops_init_przs(dev, cxt, &paddr, dump_mem_sz);