#10375: arm: ghci hits an illegal instruction -------------------------------------+--------------------------------- Reporter: erikd | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.2 Component: GHCi | Version: 7.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: arm Type of failure: GHCi crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+--------------------------------- Comment (by erikd): With the `DYNAMIC_GHC_PROGRAMS = NO` version of `ghc-stage2` I can actually run it under GDB directly, instead of running it in one terminal and attaching GDB to it from another terminal. However, if I try to set a breakpoint suddenly GDB and `ghc-stage2`'s terminal manipulation start fighting each other again. The above problem means I'm back to attaching GDB to `ghc-stage2` from a separate terminal, but I can't do it with a `getChar` in the `.gchi` file because the statically linked `ghc-stage2` is crashing before it loads the `.ghci` file. Instead, I have hacked `ghc/Main.hs` as follows: {{{ main :: IO () main = do + args <- getArgs + if "--interactive" `elem` args + then do + putStr "Continue ... " + hFlush stdout + _ <- getChar + putStrLn "done" + else return () initGCStatistics -- See Note [-Bsymbolic and hooks] hSetBuffering stdout LineBuffering hSetBuffering stderr LineBuffering }}} This does allow me to attach GDB, but then I'm stuck with the same problem as before, attaching GDB changes the state of the program to an extent where I can't catch the problem. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10375#comment:24 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler