> While investigating this I realized I did not really know when
> FINGERPRINT_premain is supposed to be called. With my small app I see
> it get called when I execute the app (because I stuck some debug
> printfs in fips_premain.c). But with the main app - which is called by
> some system startup chicanery I'm not too familiar with - it is not
> called. So perhaps that is the issue. I'm not familiar with what the
> fips_premain.c code seems to be doing with the function declaration,
> using the __attribute__((constructor)), so maybe that is interfering
> with the way the system starts up this app.
>
> Suggestions and enlightening explanation appreciated.
As for enlightening you're on your own. I mean
__attribute__((constructor)) means that run-time is expected to call it
prior main(), but *why* it doesn't do that in your particular situation
is something for you to figure out. As for suggestions extend
util/incore to embed not only FINGERPRINT_ascii_value but even binary
FIPS_signature. Add following two lines after last print
seek(FD,$FIPS_signature->{st_offset},0) or die "$!";
print FD $fingerprint or die "$!";
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