Re: [tor-bugs] #23357 [Core Tor/Tor]: Build with non-Cross-DSO CFI

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#23357: Build with non-Cross-DSO CFI
----------------------------------------+----------------------------------
 Reporter:  shawn.webb                  |          Owner:  (none)
     Type:  enhancement                 |         Status:  needs_revision
 Priority:  Medium                      |      Milestone:  Tor:
                                        |  0.3.2.x-final
Component:  Core Tor/Tor                |        Version:
 Severity:  Normal                      |     Resolution:
 Keywords:  security, defence-in-depth  |  Actual Points:
Parent ID:                              |         Points:  1.0
 Reviewer:                              |        Sponsor:
----------------------------------------+----------------------------------

Comment (by shawn.webb):

 CFLAGS isn't set by that point, so autoconf will complain with an error
 that `+=` was used instead of `=`.

 I would probably leave this as a separate flag, given this needs both
 explicit compiler and linker support. CFI is still under development by
 the clang/llvm folks, too.

 As an FYI, I've committed this patch to the HardenedBSD ports tree in case
 anyone wants to play with it on HardenedBSD 12-CURRENT/amd64. I'm about to
 deploy it on my public relay, which also serves as a transparent proxy for
 my entire home LAN.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23357#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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