'gprof displays no time accumulated
I am trying to use gprof to profile my code. However, when I compile with the flag -pg, gprof displays no time accumulated and the report contains all 0's. The version I have is GNU gprof (GNU Binutils for Ubuntu) 2.34. How can I solve this issue?
The program is definitely running for quite a while (>30 seconds) and it contains only two functions. The same thing happens when I use code and instructions from this article: https://www.thegeekstuff.com/2012/08/gprof-tutorial/.
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