Dear all,
I am trying to collect stats using callgrind for assembly code (I followed
the steps for assembly instrumentation, and I was successful in obtaining
assembly-line level event counts).
valgrind --tool=callgrind --I1=32768,64,32 --D1=32768,64,32
--LL=8388608,64,128 --cache-sim=yes --branch-sim=no --simulate-wb=no
--simulate-hwpref=yes --cacheuse=no --compress-strings=no --compress-pos=no
-v my_program
However, after using callgrind_annotate --auto=yes, there is no
information for a particular function, say, "foo". The name of "foo" in the
assembly is "_Z10foo". I checked and evidence show that this function,
which is the core computational part, should be executed, so there should
be some stats for it.
I then trying to enforce callgrind to gather info for this function by
adding "--toggle-collect=foo", after using callgrind_annotate, the result
show empty stats. I also tried "--toggle-collect=_Z10foo", but it ends up
the same result. Any suggestions?
Thanks,
Jiayuan
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