Hi Scott,
I think the answer is the same as the prior email. You need to register an
exit callback to close the file stream :). See, for instance, the elastic
trace code:
https://gem5.googlesource.com/public/gem5/+/refs/heads/stable/src/cpu/o3/probe/elastic_trace.cc#103
Cheers,
Jason
On Wed, Feb 9, 2022 at 5:19 PM Scott Blankenberg via gem5-users <
gem5-users@gem5.org> wrote:
> Hello all,
>
> Has anyone used the findOrCreate Gem5 function for opening custom file
> streams?
>
> For example in src/cpu/base.cc we see that this function is used in the
> constructor for BaseCPU
>
> const std::string fname = csprintf("ftrace.%s", name());
> functionTraceStream = simout.findOrCreate(fname)->stream();
>
>
> Has anyone who has used this function called it to create .gz files?
>
> I am having an issue right now where for some benchmarks I run that the
> final gz file I get out is not compressed correctly. When I attempt to
> decompress the .gz files, I will get errors such as "unexpected end of
> file".
>
> One possibility I can think of is that the file does not close properly.
> However, I am struggling to find out where I should close the file since I
> need to do it at the end of the simulation and there is no clear place in
> BaseCPU code to place code you want to execute at the end of simulation. I
> have tried using the BaseCPU destructor to close my stream files, but the
> code I put into this destructor does not seemed to be invoked.
>
> Anyways, has anyone ran into similar issues?
>
> Thanks,
>
> Scott Blankenberg
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