On my perf report I see a bunch of lines with vdso modules and no function names. I am guessing these are for gettimeofday type calls. But how can I see actual function calls?
My perf record command:
sudo perf record -a -g -k 1 --call-graph dwarf,16384 -F 99 -e cpu-clock:pppH -p $PID -- sleep 60
and using sudo perf report to view the report. It shows something like:
+ 2.83% 0.00% myprog [vdso] [.] 0x00007fff983f6738
I am on kernel version 5.10 using Amazon Linux 2.