Hi Sven,
> Hi all.
>
> Profiling bigloo compiled programs shows no counters at all
> if using gcc-5, gcc-6 or gcc-7 from Ubuntu (and probably Debian).
> The reason is that these gcc versions are configured with:
>
> --enable-default-pie
>
> You can check your gcc version as follows:
>
> # gcc -v |& grep pie
>
> The solution is easy: add -no-pie to --cflags when configuring bigloo.
> The following bug report gave me the correct hint:
>
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854704
Ah very interesting. Thanks for sharing that with us. I have been
struggling with this problem for a while, before switching to "perf",
which gives interesting, but somehow not easy to interpret, results.
By the way, I have opened a thread on the GC mailling list. I have observed
that from one execution to another, the GC behavior might be quite different.
I suspect that this is due to the memory randomization but I have not
studied that thoroughly enough to be really affirmative.
Best,
--
Manuel
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