[Valgrind-users] callgring doesn't annotate my source code

[Joel M. <jo...@sa...>]

  Hi,

I'm a new Valgrind / Callgrind user, and I'm trying to perform some profiling of my code at source level, per C++ line of code.
My code is running on Android platform, it was built under ndk-build with debug information included (-g option)
I activated valgrind with the following command in adb shell : valgrind --tool=callgrind ...
It successfully activated my code and generated as output an 898 Kbyte file - callgrind.out.6265
I then ran callgrind_annotate with the following command : callgrind_annotate --auto=yes callgrind.out.6265 > callgrind.out.txt
When reading callgrind.out.txt I could find some of my code - actually 1 function, with its correct function name, under "Ir  file:function", with a count of 4,262,514
But no code-line level annotation was provided for this function (nor for any other function).
When I tried to run callgrind_annotate without the --auto=yes option but explicitly specifying my source file xyz.cpp, I got the following output :
No information has been collected for xyz.cpp

Does anyone have a clue regarding what can cause this behavior ?

Thanks,
Joel