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[tor-bugs] #29694 [Applications/Tor Browser]: Build Go binaries with `-buildmode=pie"?

#29694: Build Go binaries with `-buildmode=pie"?
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     Reporter:  gk                        |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:  tbb-rbm
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
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 I was looking a bit how the `obfs4proxy` binary gets build for Android
 today and it turns out that Briar etc. use `-buildmode=pie`. Currently our
 Linux binaries have no PIE and no RELRO (but Stack Canaries, NX etc.
 enabled). Trying with `-buildmode=pie` results in "PIE enabled" but
 somewhat surprisingly our stack canaries are gone (but we get partial
 RELRO).

 So, generally, should we start using PIE mode (and `-extldflags=-pie`
 where needed)? Or are we good with what we have?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29694>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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