Use Intel Control-flow Enforcement Technology

https://software.intel.com/sites/default/files/managed/4d/2a/control-flow-enforcement-technology-preview.pdf

changed milestone to %Tor: unspecified

added cfe cfi component::core tor/tor hardening hardware intel milestone::Tor: unspecified priority::medium resolution::not a bug severity::normal status::closed type::enhancement labels

Related: http://robert.ocallahan.org/2016/06/is-control-flow-integrity-worth.html

Trac:
Cc: N/A to mcs

Trac:
Cc: mcs to mcs, gk

Are there any compiler options for this that we could start experimenting with?

Trac:
Milestone: N/A to Tor: unspecified

Once there are compiler options for this, we can use it. But for now, there's no real way to take advantage of it afaik.

Please reopen if/once gcc or clang support exists?

Trac:
Status: new to closed
Resolution: N/A to not a bug

closed

moved to tpo/core/tor#19485 (closed)