标签:one cst cache ESS linux内核 cer hack boot for
在编译Linux内核,配置时:make menuconfig ---> Kernel hacking --> printk and dmesg options --> show timing information on printks
当选中这个选项后,启动内核,会在日志信息前面加上时间戳。
从下面的输出可以看出,时间精确到微秒(us)。
如下:
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Uncompressing Linux... done, booting the kernel.
[ 0.000000] Linux version 2.6.35.7+ (bshen@bamboo) (gcc version 4.4.1 (Sourcery G++ Lite 2010q1-202) ) #109 PREEMPT Mon Nov 14 15:11:15 CST 2011
[ 0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
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转自:https://blog.csdn.net/beckdon/article/details/50404131
标签:one cst cache ESS linux内核 cer hack boot for
原文地址:https://www.cnblogs.com/huakaimanlin/p/9363483.html