3rd-party/linux-kernel-module-cheat
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pmccntr: make section title clearer

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Ciro Santilli 六四事件 法轮功
2019-06-06 00:00:02 +00:00
parent bc72790e81
commit 43ff5ced56
2 changed files with 2 additions and 2 deletions
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2
README.adoc
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@@ -12387,7 +12387,7 @@ Bibliography:
* https://en.wikipedia.org/wiki/Time_Stamp_Counter
* https://stackoverflow.com/questions/9887839/clock-cycle-count-wth-gcc/9887979
==== ARM pmccntr
==== ARM PMCCNTR register
TODO We didn't manage to find a working ARM analogue to <<x86-rdtsc-instruction>>: link:kernel_modules/pmccntr.c[] is oopsing, and even it if weren't, it likely won't give the cycle count since boot since it needs to be activate before it starts counting anything:

2
kernel_modules/pmccntr.c
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@@ -1,4 +1,4 @@
/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-pmccntr */
/* https://github.com/cirosantilli/linux-kernel-module-cheat#arm-pmccntr-register */
#include <linux/debugfs.h>
#include <linux/errno.h> /* EFAULT */