lib.sh: add get_ldc_subdir() that follows /sys/module/snd_sof_pci/parameters/fw_path

[marc-hb]

We need to follow the /sys/module/snd_sof_pci/parameters/fw_path flexibility to test the firmware as whole /lib/firmware package and to stop copying files into /etc/sof/

[marc-hb]

https://sof-ci.01.org/softestpr/PR1084/build606/devicetest/index.html has 2 suspend/resume failures, https://sof-ci.01.org/softestpr/PR1084/build607/devicetest/index.html has 1.

https://sof-ci.01.org/softestpr/PR1084/build605/devicetest/index.html is amazingly all green.

[keqiaozhang]

I checked this PR with my #1065 , sof-logger check passed on all CAVS platforms. But it failed on MTL platforms. please check:
https://sof-ci.ostc.intel.com/#/result/planresultdetail/29116

[marc-hb]

But it failed on MTL platforms. please check:
https://sof-ci.ostc.intel.com/#/result/planresultdetail/29116

That's a totally different bug, unrelated to this PR. Try with this:

--- a/test-case/check-sof-logger.sh+++ b/test-case/check-sof-logger.sh@@ -144,7 +144,7 @@ run_loggers()
loggerStatus=0; wait "$mtracetoolPID" || loggerStatus=$?
test "$loggerStatus" -eq 124 || {
- cat "$error_file"+ cat "$etrace_file"
die "timeout $mtracetool returned unexpected: $loggerStatus"
}
else

[marc-hb]

That's a totally different bug, unrelated to this PR. Try with this:

Unrelated one-line fix submitted in

• check-sof-logger.sh: cat correct error file on mtrace failure #1086

[marc-hb]

#1086 merged, @keqiaozhang could you try again?

[keqiaozhang]

#1086 merged, @keqiaozhang could you try again?

sof-logger check still failed on MTL and TGL-H:https://sof-ci.ostc.intel.com/#/result/planresultdetail/29206

[marc-hb]

sof-logger check still failed on MTL and TGL-H:https://sof-ci.ostc.intel.com/#/result/planresultdetail/29206

Yes but now it's showing the real mtrace problem which means we should merge this sof-test PR and finally enable that test on MTL PR testing :-)

Traceback (most recent call last):
File "/usr/local/bin/mtrace-reader.py", line 20, in fd = os.open(MTRACE_FILE, os.O_RDONLY)
FileNotFoundError: [Errno 2] No such file or directory: '/sys/kernel/debug/sof/mtrace/core0'

[marc-hb]

SOFCI TEST

[marc-hb]

Just one unrelated pause/resume failure in https://sof-ci.01.org/softestpr/PR1084/build645/devicetest/index.html

Just one well known and unrelated UP2 topology issue in https://sof-ci.01.org/softestpr/PR1084/build644/devicetest/index.html?model=APL_UP2_NOCODEC&testcase=verify-tplg-binary

Everything else including ACE https://sof-ci.01.org/softestpr/PR1084/build646/devicetest/index.html is green.

[keqiaozhang]

Tested.

[marc-hb]

Thanks @keqiaozhang !