Dragonboard410c OpenCSD

Lydia1412 · March 3, 2022, 4:08pm

Hi,
I want to run opencsd on dragonboard410c, refer to the link below:

Linaro/OpenCSD/blob/master/HOWTO.md

HOWTO - using the library with perf   {#howto_perf}
===================================

@brief Using command line perf and OpenCSD to collect and decode trace.

This HOWTO explains how to use the perf cmd line tools and the openCSD
library to collect and extract program flow traces generated by the
CoreSight IP blocks on a Linux system.  The examples have been generated using
an aarch64 Juno-r0 platform.


On Target Trace Acquisition - Perf Record
-----------------------------------------

Compile the perf tool from the same kernel source code version you are using with:
	
	make -C tools/perf
	
This will yield a `perf` executable that will support CoreSight trace collection.

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1.The problem is that I don’t have a tools/perf directory when I ran the “make -C tools/perf” command.（according to the first link）
2.After entering the instruction according to the second link, it is inconsistent with the content displayed in the tutorial, and there is no CPU0 folder.

How should I operate to have the directory?
Thanks