[GHC] #15340: Investigate using Ward on RTS

[GHC]

#15340: Investigate using Ward on RTS
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:  (none)
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.4.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by bgamari):

 There are many many things which I would like to have statically checked
 that in principle Ward is capable of:

  * Verifying that callers into the GC have a valid `gc_thread` declaration
 in scope (since it may be a `register` variable)
  * `SM_LOCK` checking
  * `linker_lock` checking
  * Capability possession checking

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15340#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler