Hi everyone!
I am using arm ds-5 professional under evaluation license, and I am trying to collect call-graph info from my test application under arm via streamline, but faced with issue.
Collected call graph is flat, there is no hierarchy
But it should be something like this: main -> f1 -> f2
I have used all necessary options that mentions in manual: -fno-omit-frame-pointer -fno-inline and checked "Call stack unwinding"
I ran this code on remote arm machine under Ubuntu 14.04 build according to this manual https://git.linaro.org/arm/ds5/gator.git/blob/HEAD:/README_Streamline.txt
I' ve used this config options for stream line:
Could some one please explain me what i am doing wrong?
I have attached src and build.sh.
Thanks in advance
Hi dinar,
Please bear in mind that Streamline is a statistical profiling tool.
From the screenshots you provided, it seems that no PC (program counter) sample has fallen in your application space (functions are shown in grey color with 0.00% value).
I suggest to write an application to keep the CPU running in a loop instead of using the sleep call.
Then, you should see the Call-graph and Call-path similar to the images attached (taken from the Streamline_annotate example in DS-5/examples/Linux_examples.zip)
FYI, these are the recommended compiler options to enable call stack unwinding.
Note: Streamline does not support call stack unwinding for Thumb code, so make sure you use -marm
Please note the Call-graph tab has been removed in DS-5/Streamline 5.20.
Best regards,
Marcelo