Profiling library for esp8266

[yadavravi079]

Hi guys! I have developed a project based on NodeMCU, Now I am trying to debugging and profiling it.
Can any could please help how to profile the code? Is their any profiling library which is also used by Xtensa Xplorer to profile the xtensa code?
I am able to debug it using gdb over eclipse and now I am trying to compile it using -pg Flag so that it gnenerate some info using mcount() and then I could use Gprof for further profiling.
Share some ideas would be appreciated.