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From: "dannf at dannf dot org" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug uprobes/28923] dtrace predictable temp file causes race
Date: Fri, 25 Feb 2022 23:29:25 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28923

dann frazier <dannf at dannf dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dannf at dannf dot org

--- Comment #3 from dann frazier <dannf at dannf dot org> ---
Created attachment 13997
  --> https://sourceware.org/bugzilla/attachment.cgi?id=3D13997&action=3Ded=
it
Hash inputs to create predictable temporary name for .c file

I didn't find a good way to alter the random seed used by mkstemp(), so ins=
tead
I experimented with a sha hash using the user-supplied input/output file pa=
ths.
See attached. This works for my use case, though I'd prefer a solution that
overrides the .file directive if we can figure out how to do that and conti=
nue
to use mkstemp().

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