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Numeric suffixes on symbols
- From: Michael Morrell <morrell at alumni dot ucsd dot edu>
- To: gcc-help at gcc dot gnu dot org
- Date: Wed, 30 Sep 2009 14:32:03 -0700 (PDT)
- Subject: Numeric suffixes on symbols
- Reply-to: morrell at alumni dot ucsd dot edu
I'm building some code that I want to make sure produces the same bits each
time. I ran into a case where the only difference between the result from
two different compilation is the names of some of the symbols.
For example, I may see the symbol name:
__PRETTY_FUNCTION__.20638
in the first build, and then:
__PRETTY_FUNCTION__.20694
in the second build.
I can believe that gcc might need to generate a suffix to disambiguate
function-scoped static variables with the same name, but I need it to do
so in a deterministic fashion. Over a large code base, this only shows
up a few times, so that seems strange.
Can someone help to explain this or point me towards the place in the
compiler where it is generating this suffix?
Thanks,
Michael