[tor-bugs] #16351 [Applications/Tor Browser]: Upgrade our toolchain for Tor Browser 5.0

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#16351: Upgrade our toolchain for Tor Browser 5.0
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 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  enhancement                          |         Status:  closed
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:  fixed
 Keywords:  tbb-gitian, GeorgKoppen201506,       |  Actual Points:
  tbb-5.0a3-essential, TorBrowserTeam201507R     |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Changes (by bugzilla):

 * severity:   => Normal


Comment:

 Replying to [comment:6 boklm]:
 > r=boklm
 > The gitian/patches/enable-reloc-section-ld.patch file looks good to me
 (I had previously rebased it on the new binutils and got the same patch).

 Safer approaches:
 > You can also pass --dynamicbase to the linker in the same way, but sadly
 it doesn't emit the necessary relocation table. As a workaround, you can
 pass -Wl,--dynamicbase,--export-all-symbols. An explicit
 __declspec(dllexport) of a single symbol like main also works, and that is
 currently the workaround used in the Rust compiler.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16351#comment:19>
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